Commit Graph

1319 Commits (gesa/ssh-client-session-monitoring)

Author SHA1 Message Date
Brad Fitzpatrick bcd79b161a feature/featuretags: add option to turn off DNS
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>
3 months ago
Brad Fitzpatrick ba76578447 ipn/ipnlocal, feature/posture: pull posture out into a modular feature
Updates #12614

Change-Id: I9d08a1330b9c55e1a23e7979a707e11d8e090d79
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 038cdb4640 feature/clientupdate: move clientupdate to a modular feature, disabled for tsnet
Updates #12614

Change-Id: I5f685dec84a5396b7c2b66f2788ae3d286e1ddc6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Fran Bull 65d6c80695 cmd/tailscale/cli,client,ipn: add appc-routes cli command
Allow the user to access information about routes an app connector has
learned, such as how many routes for each domain.

Fixes tailscale/corp#32624

Signed-off-by: Fran Bull <fran@tailscale.com>
3 months ago
Brad Fitzpatrick 976389c0f7 feature/sdnotify: move util/systemd to a modular feature
Updates #12614

Change-Id: I08e714c83b455df7f538cc99cafe940db936b480
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 11b770fbc9 feature/logtail: pull logtail + netlog out to modular features
Removes 434 KB from the minimal Linux binary, or ~3%.

Primarily this comes from not linking in the zstd encoding code.

Fixes #17323

Change-Id: I0a90de307dfa1ad7422db7aa8b1b46c782bfaaf7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 01e645fae1 util/backoff: rename logtail/backoff package to util/backoff
It has nothing to do with logtail and is confusing named like that.

Updates #cleanup
Updates #17323

Change-Id: Idd34587ba186a2416725f72ffc4c5778b0b9db4a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 832e94607e doctor: add ts_omit_doctor support
Updates #12614

Change-Id: I84c166c4b99ca75d70abe4087e5ff3f7d90d4bcc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 87ee0f4e98 ipn/ipnlocal: move last unconditional gvisor import, complete ts_omit_netstack support
Fixes #17283

Change-Id: Ia84d269683e4a68d7d10562561204934eeaf53bb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 45d635cc98 feature/portlist: pull portlist service porting into extension, use eventbus
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>
3 months ago
Nick Khyl bbc5107d7d ipn/ipnlocal: do not reset extHost on (*LocalBackend).Shutdown
We made changes to ipnext callback registration/unregistration/invocation in #15780
that made resetting b.exthost to a nil, no-op host in (*LocalBackend).Shutdown() unnecessary.

But resetting it is also racy: b.exthost must be safe for concurrent use with or without b.mu held,
so it shouldn't be written after NewLocalBackend returns. This PR removes it.

Fixes #17279

Signed-off-by: Nick Khyl <nickk@tailscale.com>
3 months ago
Brad Fitzpatrick 0bd4f4729b ipn/ipnlocal: rename misnamed DisablePortMapperForTest to DisablePortPollerForTest
I think this was originally a brain-o in 9380e2dfc6. It's
disabling the port _poller_, listing what open ports (i.e. services)
are open, not PMP/PCP/UPnP port mapping.

While there, drop in some more testenv.AssertInTest() in a few places.

Updates #cleanup

Change-Id: Ia6f755ad3544f855883b8a7bdcfc066e8649547b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 21dc5f4e21 derp/derpserver: split off derp.Server out of derp into its own package
This exports a number of things from the derp (generic + client) package
to be used by the new derpserver package, as now used by cmd/derper.

And then enough other misc changes to lock in that cmd/tailscaled can
be configured to not bring in tailscale.com/client/local. (The webclient
in particular, even when disabled, was bringing it in, so that's now fixed)

Fixes #17257

Change-Id: I88b6c7958643fb54f386dd900bddf73d2d4d96d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick b54cdf9f38 all: use buildfeatures.HasCapture const in a handful of places
Help out the linker's dead code elimination.

Updates #12614

Change-Id: I6c13cb44d3250bf1e3a01ad393c637da4613affb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 8fe575409f feature/featuretags: add build tag to remove captive portal detection
This doesn't yet fully pull it out into a feature/captiveportal package.
This is the usual first step, moving the code to its own files within
the same packages.

Updates #17254

Change-Id: Idfaec839debf7c96f51ca6520ce36ccf2f8eec92
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 87ccfbd250 ipn/ipnlocal: fix eventbus data race
Fixes #17252

Change-Id: Id969fca750a48fb43431c53f3e0631bd9bd496d1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
M. J. Fromberger 1b5201023f
ipn/ipnlocal: use eventbus.Monitor in LocalBackend (#17225)
This commit does not change the order or meaning of any eventbus activity, it
only updates the way the plumbing is set up.

Updates #15160

Change-Id: I06860ac4e43952a9bb4d85366138c9d9a17fd9cd
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
3 months ago
M. J. Fromberger f9c699812a
ipn/ipnlocal: use eventbus.Monitor in expiryManager (#17204)
This commit does not change the order or meaning of any eventbus activity, it
only updates the way the plumbing is set up.

Updates #15160

Change-Id: I0a175e67e867459daaedba0731bf68bd331e5ebc
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
3 months ago
Anton Tolchanov 2351cc0d0e ipn/ipnlocal: make the redactNetmapPrivateKeys test recursive
Expand TestRedactNetmapPrivateKeys to cover all sub-structs of
NetworkMap and confirm that a) all fields are annotated as private or
public, and b) all private fields are getting redacted.

Updates tailscale/corp#32095

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
3 months ago
Anton Tolchanov 4a04161828 ipn/ipnlocal: add a C2N endpoint for fetching a netmap
For debugging purposes, add a new C2N endpoint returning the current
netmap. Optionally, coordination server can send a new "candidate" map
response, which the client will generate a separate netmap for.
Coordination server can later compare two netmaps, detecting unexpected
changes to the client state.

Updates tailscale/corp#32095

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
3 months ago
Alex Chan cd153aa644 control, ipn, tailcfg: enable seamless key renewal by default
Previously, seamless key renewal was an opt-in feature.  Customers had
to set a `seamless-key-renewal` node attribute in their policy file.

This patch enables seamless key renewal by default for all clients.

It includes a `disable-seamless-key-renewal` node attribute we can set
in Control, so we can manage the rollout and disable the feature for
clients with known bugs.  This new attribute makes the feature opt-out.

Updates tailscale/corp#31479

Signed-off-by: Alex Chan <alexc@tailscale.com>
3 months ago
Claus Lensbøl df362d0a08
net/netmon: make ChangeDelta event not a pointer (#17112)
This makes things work slightly better over the eventbus.

Also switches ipnlocal to use the event over the eventbus instead of the
direct callback.

Updates #15160

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
3 months ago
James Sanderson ddc0cd7e1e ipn/ipnlocal: disconnect and block when key expires even when using seamless
Updates tailscale/corp#31478

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
3 months ago
Brad Fitzpatrick 697098ed6c ipn/ipnlocal: fix a case where ts_omit_ssh was still linking in x/crypto/ssh
And add a test.

Updates #12614

Change-Id: Icb1c77f5890def794a4938583725c1a0886b197d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick e180fc267b feature/featuretags, all: add ts_omit_acme to disable TLS cert support
I'd started to do this in the earlier ts_omit_server PR but
decided to split it into this separate PR.

Updates #17128

Change-Id: Ief8823a78d1f7bbb79e64a5cab30a7d0a5d6ff4b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 99b3f69126 feature/portmapper: make the portmapper & its debugging tools modular
Starting at a minimal binary and adding one feature back...
    tailscaled tailscale combined (linux/amd64)
     30073135  17451704  31543692 omitting everything
    +  480302 +   10258 +  493896 .. add debugportmapper
    +  475317 +  151943 +  467660 .. add portmapper
    +  500086 +  162873 +  510511 .. add portmapper+debugportmapper

Fixes #17148

Change-Id: I90bd0e9d1bd8cbe64fa2e885e9afef8fb5ee74b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
M. J. Fromberger 8608e42103
feature,ipn/ipnlocal,wgengine: improve how eventbus shutdown is handled (#17156)
Instead of waiting for a designated subscription to close as a canary for the
bus being stopped, use the bus Client's own signal for closure added in #17118.

Updates #cleanup

Change-Id: I384ea39f3f1f6a030a6282356f7b5bdcdf8d7102
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
3 months ago
Claus Lensbøl 2015ce4081
health,ipn/ipnlocal: introduce eventbus in heath.Tracker (#17085)
The Tracker was using direct callbacks to ipnlocal. This PR moves those
to be triggered via the eventbus.

Additionally, the eventbus is now closed on exit from tailscaled
explicitly, and health is now a SubSystem in tsd.

Updates #15160

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
3 months ago
Brad Fitzpatrick 4cca9f7c67 all: add ts_omit_serve, start making tailscale serve/funnel be modular
tailscaled tailscale combined (linux/amd64)
     29853147  17384418  31412596 omitting everything
    +  621570 +  219277 +  554256 .. add serve

Updates #17128

Change-Id: I87c2c6c3d3fc2dc026c3de8ef7000a813b41d31c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Claus Lensbøl b816fd7117
control/controlclient: introduce eventbus messages instead of callbacks (#16956)
This is a small introduction of the eventbus into controlclient that
communicates with mainly ipnlocal. While ipnlocal is a complicated part
of the codebase, the subscribers here are from the perspective of
ipnlocal already called async.

Updates #15160

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
3 months ago
Brad Fitzpatrick 3a49b7464c all: add ts_omit_tailnetlock as a start of making it build-time modular
Updates #17115

Change-Id: I6b083c0db4c4d359e49eb129d626b7f128f0a9d2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick a1dcf12b67 feature/drive: start factoring out Taildrive, add ts_omit_drive build tag
As of this commit (per the issue), the Taildrive code remains where it
was, but in new files that are protected by the new ts_omit_drive
build tag. Future commits will move it.

Updates #17058

Change-Id: Idf0a51db59e41ae8da6ea2b11d238aefc48b219e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Nick O'Neill 77250a301a
ipn/ipnlocal, types: plumb tailnet display name cap through to network profile (#17045)
Updates tailscale/corp#30456

Signed-off-by: Nick O'Neill <nick@tailscale.com>
3 months ago
Brad Fitzpatrick 3e4b0c1516 cmd/tailscale, ipn/ipnlocal: add ts_omit_webclient
Fixes #17063
Updates #12614

Change-Id: I0a189f6a4d1c4558351e3195839867725774fa96
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
James Sanderson 046b8830c7 ipn/ipnlocal: add state change test for key expiry
Updates tailscale/corp#31478

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
3 months ago
Brad Fitzpatrick b034f7cca9 ipn/ipnlocal, util/syspolicy: convert last RegisterWellKnownSettingsForTest caller, remove
Updates #16998

Change-Id: I735d75129a97a929092e9075107e41cdade18944
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Jonathan Nobels a2f2ac6ba1
ipn/local: fix deadlock in initial suggested exit node query (#17025)
updates tailscale/corp#26369

b.mu is locked here.  We need to use suggestExitNodeLocked.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
3 months ago
Brad Fitzpatrick d06d9007a6 ipn/ipnlocal: convert more tests to use policytest, de-global-ify
Now that we have policytest and the policyclient.Client interface, we
can de-global-ify many of the tests, letting them run concurrently
with each other, and just removing global variable complexity.

This does ~half of the LocalBackend ones.

Updates #16998

Change-Id: Iece754e1ef4e49744ccd967fa83629d0dca6f66a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 24b8a57b1e util/syspolicy/policytest: move policy test helper to its own package
Updates #16998
Updates #12614

Change-Id: I9fd27d653ebee547951705dc5597481e85b60747
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 2b3e533048 util/syspolicy: finish plumbing policyclient, add feature/syspolicy, move global impl
This is step 4 of making syspolicy a build-time feature.

This adds a policyclient.Get() accessor to return the correct
implementation to use: either the real one, or the no-op one. (A third
type, a static one for testing, also exists, so in general a
policyclient.Client should be plumbed around and not always fetched
via policyclient.Get whenever possible, especially if tests need to use
alternate syspolicy)

Updates #16998
Updates #12614

Change-Id: Iaf19670744a596d5918acfa744f5db4564272978
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
M. J. Fromberger 9e9bf13063
ipn/ipnlocal: revert some locking changes ahead of release branch cut (#17011) 3 months ago
Brad Fitzpatrick 0d23490e1a ipn/ipnlocal: simplify a test with a new simpler syspolicy client test type
Less indirection.

Updates #16998
Updates #12614

Change-Id: I5a3a3c3f3b195486b2731ec002d2532337b3d211
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick 1ca4ae598a ipn/ipnlocal: use policyclient.Client always, stop using global syspolicy funcs
Step 4 of N. See earlier commits in the series (via the issue) for the
plan.

This adds the missing methods to policyclient.Client and then uses it
everywhere in ipn/ipnlocal and locks it in with a new dep test.

Still plenty of users of the global syspolicy elsewhere in the tree,
but this is a lot of them.

Updates #16998
Updates #12614

Change-Id: I25b136539ae1eedbcba80124de842970db0ca314
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 months ago
Brad Fitzpatrick d05e6dc09e util/syspolicy/policyclient: add policyclient.Client interface, start plumbing
This is step 2 of ~4, breaking up #14720 into reviewable chunks, with
the aim to make syspolicy be a build-time configurable feature.

Step 1 was #16984.

In this second step, the util/syspolicy/policyclient package is added
with the policyclient.Client interface.  This is the interface that's
always present (regardless of build tags), and is what code around the
tree uses to ask syspolicy/MDM questions.

There are two implementations of policyclient.Client for now:

1) NoPolicyClient, which only returns default values.
2) the unexported, temporary 'globalSyspolicy', which is implemented
   in terms of the global functions we wish to later eliminate.

This then starts to plumb around the policyclient.Client to most callers.

Future changes will plumb it more. When the last of the global func
callers are gone, then we can unexport the global functions and make a
proper policyclient.Client type and constructor in the syspolicy
package, removing the globalSyspolicy impl out of tsd.

The final change will sprinkle build tags in a few more places and
lock it in with dependency tests to make sure the dependencies don't
later creep back in.

Updates #16998
Updates #12614

Change-Id: Ib2c93d15c15c1f2b981464099177cd492d50391c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 months ago
Brad Fitzpatrick cc532efc20 util/syspolicy/*: move syspolicy keys to new const leaf "pkey" package
This is step 1 of ~3, breaking up #14720 into reviewable chunks, with
the aim to make syspolicy be a build-time configurable feature.

In this first (very noisy) step, all the syspolicy string key
constants move to a new constant-only (code-free) package. This will
make future steps more reviewable, without this movement noise.

There are no code or behavior changes here.

The future steps of this series can be seen in #14720: removing global
funcs from syspolicy resolution and using an interface that's plumbed
around instead. Then adding build tags.

Updates #12614

Change-Id: If73bf2c28b9c9b1a408fe868b0b6a25b03eeabd1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 months ago
Jonathan Nobels 80f5a00e76
ipn/local: add the suggested exit node to the ipn bus (#16748)
fixes tailscale/corp#26369

The suggested exit node is currently only calculated during a localAPI request.
For older UIs, this wasn't a bad choice - we could just fetch it on-demand when a menu
presented itself.  For newer incarnations however, this is an always-visible field
that needs to react to changes in the suggested exit node's value.

This change recalculates the suggested exit node ID on netmap updates and
broadcasts it on the IPN bus.   The localAPI version of this remains intact for the
time being.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
4 months ago
M. J. Fromberger b411ffb52f ipn/ipnlocal: remove UnlockEarly from doSetHostinfoFilterServices
Pull the lock-bearing code into a closure, and use a clone rather than a
shallow copy of the hostinfo record.

Updates #11649

Change-Id: I4f1d42c42ce45e493b204baae0d50b1cbf82b102
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
4 months ago
M. J. Fromberger 9002e5fd6b ipn/ipnlocal: remove an unnecessary unlock shortcut
The early unlock on this branch was required because the "send" method goes on
to acquire the mutex itself. Rather than release the lock just to acquire it
again, call the underlying locked helper directly.

Updates #11649

Change-Id: I50d81864a00150fc41460b7486a9c65655f282f5
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
4 months ago
M. J. Fromberger 2fb9472990 ipn/ipnlocal: remove unnecessary usees of lockAndGetUnlock
In places where we are locking the LocakBackend and immediately deferring an
unlock, and where there is no shortcut path in the control flow below the
deferral, we do not need the unlockOnce helper. Replace all these with use of
the lock directly.

Updates #11649

Change-Id: I3e6a7110dfc9ec6c1d38d2585c5367a0d4e76514
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
4 months ago
M. J. Fromberger 6c8fef961e
ipn/ipnlocal: replace the LockedOnEntry pattern with conventional lock/unlock discipline (#16925)
There are several methods within the LocalBackend that used an unusual and
error-prone lock discipline whereby they require the caller to hold the backend
mutex on entry, but release it on the way out.

In #11650 we added some support code to make this pattern more visible.
Now it is time to eliminate the pattern (at least within this package).
This is intended to produce no semantic changes, though I am relying on
integration tests and careful inspection to achieve that.

To the extent possible I preserved the existing control flow. In a few places,
however, I replaced this with an unlock/lock closure. This means we will
sometimes reacquire a lock only to release it again one frame up the stack, but
these operations are not performance sensitive and the legibility gain seems
worthwhile.

We can probably also pull some of these out into separate methods, but I did
not do that here so as to avoid other variable scope changes that might be hard
to see. I would like to do some more cleanup separately.

As a follow-up, we could also remove the unlockOnce helper, but I did not do
that here either.

Updates #11649

Change-Id: I4c92d4536eca629cfcd6187528381c33f4d64e20
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
4 months ago
Michael Ben-Ami 3f1851a6d9 types/dnstype, ipn/ipnlocal: allow other DNS resolvers with exit nodes
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>
4 months ago
jishudashu 23a0398136
ipn/ipnlocal, net/dns: use slices.Equal to simplify code (#16641)
Signed-off-by: jishudashu <979260390@qq.com>
5 months ago
M. J. Fromberger b34cdc9710
ipn,net,tsnet,wgengine: make an eventbus mandatory where it is used (#16594)
In the components where an event bus is already plumbed through, remove the
exceptions that allow it to be omitted, and update all the tests that relied on
those workarounds execute properly.

This change applies only to the places where we're already using the bus; it
does not enforce the existence of a bus in other components (yet),

Updates #15160

Change-Id: Iebb92243caba82b5eb420c49fc3e089a77454f65
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
5 months ago
James Sanderson 5731869565 health: add an ETag to UnhealthyState for change detection
Updates tailscale/corp#30596

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
5 months ago
Simon Law 1ef8fbf470
ipn/ipnlocal: send Hostinfo after resolveExitNode for "auto:any" (#16632)
In #16625, I introduced a mechanism for sending the selected exit node
to Control via tailcfg.Hostinfo.ExitNodeID as part of the MapRequest.
@nickkhyl pointed out that LocalBackend.doSetHostinfoFilterServices
needs to be triggered in order to actually send this update. This
patch adds that command. It also prevents the client from sending
"auto:any" in that field, because that’s not a real exit node ID.

This patch also fills in some missing checks in TestConfigureExitNode.

Updates tailscale/corp#30536

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
Simon Law 729d6532ff
tailcfg: add Hostinfo.ExitNodeID to report the selected exit node (#16625)
When a client selects a particular exit node, Control may use that as
a signal for deciding other routes.

This patch causes the client to report whenever the current exit node
changes, through tailcfg.Hostinfo.ExitNodeID. It relies on a properly
set ipn.Prefs.ExitNodeID, which should already be resolved by
`tailscale set`.

Updates tailscale/corp#30536

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
KevinLiang10 19faaff95c
cmd/tailscale/cli: revert key for web config for services to FQDN (#16627)
This commit reverts the key of Web field in ipn.ServiceConfig to use FQDN instead of service
name for the host part of HostPort. This change is because k8s operator already build base on
the assumption of the part being FQDN. We don't want to break the code with dependency.

Fixes tailscale/corp#30695

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>
5 months ago
Jordan Whited 1677fb1905
wgengine/magicsock,all: allocate peer relay over disco instead of PeerAPI (#16603)
Updates tailscale/corp#30583
Updates tailscale/corp#30534
Updates tailscale/corp#30557

Signed-off-by: Dylan Bargatze <dylan@tailscale.com>
Signed-off-by: Jordan Whited <jordan@tailscale.com>
Co-authored-by: Dylan Bargatze <dylan@tailscale.com>
5 months ago
KevinLiang10 e7238efafa
cmd/tailscale/cli: Add service flag to serve command (#16191)
* cmd/tailscale/cli: Add service flag to serve command

This commit adds the service flag to serve command which allows serving a service and add the service
to the advertisedServices field in prefs (What advertise command does that will be removed later).

When adding proxies, TCP proxies and WEB proxies work the same way as normal serve, just under a
different DNSname. There is a services specific L3 serving mode called Tun, can be set via --tun flag.
Serving a service is always in --bg mode. If --bg is explicitly set t o false, an error message will
be sent out. The restriction on proxy target being localhost or 127.0.0.1 also applies to services.

When removing proxies, TCP proxies can be removed with type and port flag and off argument. Web proxies
can be removed with type, port, setPath flag and off argument. To align with normal serve, when setPath
is not set, all handler under the hostport will be removed. When flags are not set but off argument was
passed by user, it will be a noop. Removing all config for a service will be available later with a new
subcommand clear.

Updates tailscale/corp#22954

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: fix ai comments and fix a test

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: Add a test for addServiceToPrefs

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: fix comment

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* add dnsName in error message

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* change the cli input flag variable type

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* replace FindServiceConfig with map lookup

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* some code simplification and add asServiceName

This commit cotains code simplification for IsServingHTTPS, SetWebHandler, SetTCPForwarding

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* replace IsServiceName with tailcfg.AsServiceName

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* replace all assemble of host name for service with strings.Join

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: adjust parameter order and update output message

This commit updates the parameter order for IsTCPForwardingOnPort and SetWebHandler.
Also updated the message msgServiceIPNotAssigned to msgServiceWaitingApproval to adapt to
latest terminologies around services.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: flip bool condition

This commit fixes a previous bug added that throws error when serve funnel without service.
It should've been the opposite, which throws error when serve funnel with service.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: change parameter of IsTCPForwardingOnPort

This commit changes the dnsName string parameter for IsTCPForwardingOnPort to
svcName tailcfg.ServiceName. This change is made to reduce ambiguity when
a single service might have different dnsNames

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* ipn/ipnlocal: replace the key to webHandler for services

This commit changes the way we get the webhandler for vipServices. It used to use the host name
from request to find the webHandler, now everything targeting the vipService IP have the same
set of handlers. This commit also stores service:port instead of FQDN:port as the key in serviceConfig
for Web map.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: Updated use of service name.

This commit removes serviceName.IsEmpty and use direct comparison to  instead. In legacy code, when an empty service
name needs to be passed, a new constant noService is passed. Removed redundant code for checking service name validity
and string method for serviceNameFlag.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: Update bgBoolFlag

This commit update field name, set and string method of bgBoolFlag to make code cleaner.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: remove isDefaultService output from srvTypeAndPortFromFlags

This commit removes the isDefaultService out put as it's no longer needed. Also deleted redundant code.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: remove unnessesary variable declare in messageForPort

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* replace bool output for AsServiceName with err

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: Replace DNSName with NoService if DNSname only used to identify service

This commit moves noService constant to tailcfg, updates AsServiceName to return tailcfg.NoService if the input
is not a valid service name. This commit also removes using the local DNSName as scvName parameter. When a function
is only using DNSName to identify if it's working with a service, the input in replaced with svcName and expect
caller to pass tailcfg.NoService if it's a local serve. This commit also replaces some use of Sprintf with
net.JoinHostPort for ipn.HostPort creation.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: Remove the returned error for AsServiceName

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* apply suggested code and comment

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* replace local dnsName in test with tailcfg.NoService

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* cmd/tailscale/cli: move noService back and use  else where

The constant serves the purpose of provide readability for passing as a function parameter. It's
more meaningful comparing to a . It can just be an empty string in other places.

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

* ipn: Make WebHandlerExists and RemoveTCPForwarding accept svcName

This commit replaces two functions' string input with svcName input since they only use the dnsName to
identify service. Also did some minor cleanups

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>

---------

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>
5 months ago
Simon Law e84e58c567 ipn/ipnlocal: use rendezvous hashing to traffic-steer exit nodes
With auto exit nodes enabled, the client picks exit nodes from the
ones advertised in the network map. Usually, it picks the one with the
highest priority score, but when the top spot is tied, it used to pick
randomly. Then, once it made a selection, it would strongly prefer to
stick with that exit node. It wouldn’t even consider another exit node
unless the client was shutdown or the exit node went offline. This is
to prevent flapping, where a client constantly chooses a different
random exit node.

The major problem with this algorithm is that new exit nodes don’t get
selected as often as they should. In fact, they wouldn’t even move
over if a higher scoring exit node appeared.

Let’s say that you have an exit node and it’s overloaded. So you spin
up a new exit node, right beside your existing one, in the hopes that
the traffic will be split across them. But since the client had this
strong affinity, they stick with the exit node they know and love.

Using rendezvous hashing, we can have different clients spread
their selections equally across their top scoring exit nodes. When an
exit node shuts down, its clients will spread themselves evenly to
their other equal options. When an exit node starts, a proportional
number of clients will migrate to their new best option.

Read more: https://en.wikipedia.org/wiki/Rendezvous_hashing

The trade-off is that starting up a new exit node may cause some
clients to move over, interrupting their existing network connections.
So this change is only enabled for tailnets with `traffic-steering`
enabled.

Updates tailscale/corp#29966
Fixes #16551

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
Jordan Whited 3c6d17e6f1
cmd/tailscale/cli,ipn/ipnlocal,wgengine/magicsock: implement tailscale debug peer-relay-servers (#16577)
Updates tailscale/corp#30036

Signed-off-by: Jordan Whited <jordan@tailscale.com>
5 months ago
Simon Law 205f822372 ipn/ipnlocal: check if suggested exit node is online
@nickkyl added an peer.Online check to suggestExitNodeUsingDERP, so it
should also check when running suggestExitNodeUsingTrafficSteering.

Updates tailscale/corp#29966

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
Simon Law bfb344905f ipn/ipnlocal: modernize nm.Peers with AppendMatchingPeers
Thanks to @nickkhyl for pointing out that NetMap.Peers doesn’t get
incremental updates since the last full NetMap update. Instead, he
recommends using ipn/ipnlocal.nodeBackend.AppendMatchingPeers.

Updates #cleanup

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
Simon Law c18ba4470b
ipn/ipnlocal: add traffic steering support to exit-node suggestions (#16527)
When `tailscale exit-node suggest` contacts the LocalAPI for a
suggested exit node, the client consults its netmap for peers that
contain the `suggest-exit-node` peercap. It currently uses a series of
heuristics to determine the exit node to suggest.

When the `traffic-steering` feature flag is enabled on its tailnet,
the client will defer to Control’s priority scores for a particular
peer. These scores, in `tailcfg.Hostinfo.Location.Priority`, were
historically only used for Mullvad exit nodes, but they have now been
extended to score any peer that could host a redundant resource.

Client capability version 119 is the earliest client that understands
these traffic steering scores. Control tells the client to switch to
rely on these scores by adding `tailcfg.NodeAttrTrafficSteering` to
its `AllCaps`.

Updates tailscale/corp#29966

Signed-off-by: Simon Law <sfllaw@tailscale.com>
5 months ago
Nick Khyl ff1803158a ipn/ipnlocal: change order of exit node refresh and netmap update so that clients receive the new netmap first
If the GUI receives a new exit node ID before the new netmap, it may treat the node as offline or invalid
if the previous netmap didn't include the peer at all, or if the peer was offline or not advertised as an exit node.
This may result in briefly issuing and dismissing a warning, or a similar issue, which isn't ideal.

In this PR, we change the operation order to send the new netmap to clients first before selecting the new exit node
and notifying them of the Exit Node change.

Updates tailscale/corp#30252 (an old issue discovered during testing this)

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 21a4058ec7 ipn/ipnlocal: add test to verify handling of unknown auto exit node expressions
We already check this for cases where ipn.Prefs.AutoExitNode is configured via syspolicy.
Configuring it directly through EditPrefs should behave the same, so we add a test for that as well.

Additionally, we clarify the implementation and future extensibility in (*LocalBackend).resolveAutoExitNodeLocked,
where the AutoExitNode is actually enforced.

Updates tailscale/corp#29969
Updates #cleanup

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl cc2f4ac921 ipn: move ParseAutoExitNodeID from ipn/ipnlocal to ipn
So it can be used from the CLI without importing ipnlocal.

While there, also remove isAutoExitNodeID, a wrapper around parseAutoExitNodeID
that's no longer used.

Updates tailscale/corp#29969
Updates #cleanup

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 740b77df59 ipn/ipnlocal,util/syspolicy: add support for ExitNode.AllowOverride policy setting
When the policy setting is enabled, it allows users to override the exit node enforced by the ExitNodeID
or ExitNodeIP policy. It's primarily intended for use when ExitNodeID is set to auto:any, but it can also
be used with specific exit nodes. It does not allow disabling exit node usage entirely.

Once the exit node policy is overridden, it will not be enforced again until the policy changes,
the user connects or disconnects Tailscale, switches profiles, or disables the override.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 2c630e126b ipn/ipnlocal: make applySysPolicy a method on LocalBackend
Now that applySysPolicy is only called by (*LocalBackend).reconcilePrefsLocked,
we can make it a method to avoid passing state via parameters and to support
future extensibility.

Also factor out exit node-specific logic into applyExitNodeSysPolicyLocked.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 9bf99741dd ipn/ipnlocal: refactor resolveExitNodeInPrefsLocked, setExitNodeID and resolveExitNodeIP
Now that resolveExitNodeInPrefsLocked is the only caller of setExitNodeID,
and setExitNodeID is the only caller of resolveExitNodeIP, we can restructure
the code with resolveExitNodeInPrefsLocked now calling both
resolveAutoExitNodeLocked and resolveExitNodeIPLocked directly.

This prepares for factoring out resolveAutoExitNodeLocked and related
auto-exit-node logic into an ipnext extension in a future commit.

While there, we also update exit node by IP lookup to use (*nodeBackend).NodeByAddr
and (*nodeBackend).NodeByID instead of iterating over all peers in the most recent netmap.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 1fe82d6ef5 cmd/tailscale/cli,ipn/ipnlocal: restrict logout when AlwaysOn mode is enabled
In this PR, we start passing a LocalAPI actor to (*LocalBackend).Logout to make it subject
to the same access check as disconnects made via tailscale down or the GUI.

We then update the CLI to allow `tailscale logout` to accept a reason, similar to `tailscale down`.

Updates tailscale/corp#26249

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl ea4018b757 ipn/ipnlocal: fix missing defer in testExtension.Shutdown
Updates #cleanup

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl f1c7b463cd ipn/{ipnauth,ipnlocal,localapi}: make EditPrefs return an error if changing exit node is restricted by policy
We extract checkEditPrefsAccessLocked, adjustEditPrefsLocked, and onEditPrefsLocked from the EditPrefs
execution path, defining when each step is performed and what behavior is allowed at each stage.

Currently, this is primarily used to support Always On mode, to handle the Exit Node enablement toggle,
and to report prefs edit metrics.

We then use it to enforce Exit Node policy settings by preventing users from setting an exit node
and making EditPrefs return an error when an exit node is restricted by policy. This enforcement is also
extended to the Exit Node toggle.

These changes prepare for supporting Exit Node overrides when permitted by policy and preventing logout
while Always On mode is enabled.

In the future, implementation of these methods can be delegated to ipnext extensions via the feature hooks.

Updates tailscale/corp#29969
Updates tailscale/corp#26249

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl cb7b49941e ipn/ipnlocal: add (*LocalBackend).reconcilePrefsLocked
We have several places where we call applySysPolicy, suggestExitNodeLocked, and setExitNodeID.
While there are cases where we want to resolve the exit node specifically, such as when network
conditions change or a new netmap is received, we typically need to perform all three steps.
For example, enforcing policy settings may enable auto exit nodes or set an ExitNodeIP,
which in turn requires picking a suggested exit node or resolving the IP to an ID, respectively.

In this PR, we introduce (*LocalBackend).resolveExitNodeInPrefsLocked and (*LocalBackend).reconcilePrefsLocked,
with the latter calling both applySysPolicy and resolveExitNodeInPrefsLocked.

Consolidating these steps into a single extensibility point would also make it easier to support
future hooks registered by ipnext extensions.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 381fdcc3f1 ipn/ipnlocal,util/syspolicy/source: retain existing exit node when using auto exit node, if it's allowed by policy
In this PR, we update setExitNodeID to retain the existing exit node if auto exit node is enabled,
the current exit node is allowed by policy, and no suggested exit node is available yet.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 4c1c0bac8d ipn/ipnlocal: plumb nodeBackend into suggestExitNode to support delta updates, such as online status changes
Now that (*LocalBackend).suggestExitNodeLocked is never called with a non-current netmap
(the netMap parameter is always nil, indicating that the current netmap should be used),
we can remove the unused parameter.

Additionally, instead of suggestExitNodeLocked passing the most recent full netmap to suggestExitNode,
we now pass the current nodeBackend so it can access peers with delta updates applied.

Finally, with that fixed, we no longer need to skip TestUpdateNetmapDeltaAutoExitNode.

Updates tailscale/corp#29969
Fixes #16455

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl 3e01652e4d ipn/ipnlocal: add (*LocalBackend).RefreshExitNode
In this PR, we add (*LocalBackend).RefreshExitNode which determines which exit node
to use based on the current prefs and netmap and switches to it if needed. It supports
both scenarios when an exit node is specified by IP (rather than ID) and needs to be resolved
once the netmap is ready as well as auto exit nodes.

We then use it in (*LocalBackend).SetControlClientStatus when the netmap changes,
and wherever (*LocalBackend).pickNewAutoExitNode was previously used.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
Nick Khyl a8055b5f40 cmd/tailscale/cli,ipn,ipn/ipnlocal: add AutoExitNode preference for automatic exit node selection
With this change, policy enforcement and exit node resolution can happen in separate steps,
since enforcement no longer depends on resolving the suggested exit node. This keeps policy
enforcement synchronous (e.g., when switching profiles), while allowing exit node resolution
to be asynchronous on netmap updates, link changes, etc.

Additionally, the new preference will be used to let GUIs and CLIs switch back to "auto" mode
after a manual exit node override, which is necessary for tailscale/corp#29969.

Updates tailscale/corp#29969
Updates #16459

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Nick Khyl 0098822981 ipn/ipnlocal: update suggestExitNode to skip offline candidates and fix TestSetControlClientStatusAutoExitNode
TestSetControlClientStatusAutoExitNode is broken similarly to TestUpdateNetmapDeltaAutoExitNode
as suggestExitNode didn't previously check the online status of exit nodes, and similarly to the other test
it succeeded because the test itself is also broken.

However, it is easier to fix as it sends out a full netmap update rather than a delta peer update,
so it doesn't depend on the same refactoring as TestSetControlClientStatusAutoExitNode.

Updates #16455
Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Nick Khyl 6ecc25b26a ipn/ipnlocal: skip TestUpdateNetmapDeltaAutoExitNode
suggestExitNode never checks whether an exit node candidate is online.
It also accepts a full netmap, which doesn't include changes from delta updates.
The test can't work correctly until both issues are fixed.

Previously, it passed only because the test itself is flawed.
It doesn't succeed because the currently selected node goes offline and a new one is chosen.
Instead, it succeeds because lastSuggestedExitNode is incorrect, and suggestExitNode picks
the correct node the first time it runs, based on the DERP map and the netcheck report.
The node in exitNodeIDWant just happens to be the optimal choice.

Fixing SuggestExitNode requires refactoring its callers first, which in turn reveals the flawed test,
as suggestExitNode ends up being called slightly earlier.

In this PR, we update the test to correctly fail due to existing bugs in SuggestExitNode,
and temporarily skip it until those issues are addressed in a future commit.

Updates #16455
Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Nick Khyl 56d772bd63 ipn/ipnlocal: simplify pickNewAutoExitNode
(*profileManager).CurrentPrefs() is always valid. Additionally, there's no value in cloning
and passing the full ipn.Prefs when editing preferences. Instead, ipn.MaskedPrefs should
only have ExitNodeID set.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Nick Khyl 1a2185b1ee ipn/ipnlocal: rename setAutoExitNodeIDLockedOnEntry to pickNewAutoExitNode; drop old function
Currently, (*LocalBackend).pickNewAutoExitNode() is just a wrapper around
setAutoExitNodeIDLockedOnEntry that sends a prefs-change notification at the end.
It doesn't need to do that, since setPrefsLockedOnEntry already sends the notification
(setAutoExitNodeIDLockedOnEntry calls it via editPrefsLockedOnEntry).

This PR removes the old pickNewAutoExitNode function and renames
setAutoExitNodeIDLockedOnEntry to pickNewAutoExitNode for clarity.

Updates tailscale/corp#29969

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Andrew Lytvynov 172e26b3e3
tailcfg: report StateEncrypted in Hostinfo (#16434)
Report whether the client is configured with state encryption (which
varies by platform and can be optional on some). Wire it up to
`--encrypt-state` in tailscaled, which is set for Linux/Windows, and set
defaults for other platforms. Macsys will also report this if full
Keychain migration is done.

Updates #15830

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
kari-ts d15b2312c4
tailcfg: add CapabilityOwner (#16426)
We would like to start sending whether a node is a Tailnet owner in netmap responses so that clients can determine what information to display to a user who wants to request account deletion.

Updates tailscale/corp#30016

Signed-off-by: kari-ts <kari@tailscale.com>
6 months ago
Percy Wegmann 454d856be8 drive,ipn/ipnlocal: calculate peer taildrive URLs on-demand
Instead of calculating the PeerAPI URL at the time that we add the peer,
we now calculate it on every access to the peer. This way, if we
initially did not have a shared address family with the peer, but
later do, this allows us to access the peer at that point. This
follows the pattern from other places where we access the peer API,
which also calculate the URL on an as-needed basis.

Additionally, we now show peers as not Available when we can't get
a peer API URL.

Lastly, this moves some of the more frequent verbose Taildrive logging
from [v1] to [v2] level.

Updates #29702

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 6a9bf9172b ipn/ipnlocal: add verbose Taildrive logging on client side
This allows logging the following Taildrive behavior from the client's perspective
when --verbose=1:

- Initialization of Taildrive remotes for every peer
- Peer availability checks
- All HTTP requests to peers (not just GET and PUT)

Updates tailscale/corp#29702

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Andrew Lytvynov 6feb3c35cb
ipn/store: automatically migrate between plaintext and encrypted state (#16318)
Add a new `--encrypt-state` flag to `cmd/tailscaled`. Based on that
flag, migrate the existing state file to/from encrypted format if
needed.

Updates #15830

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
JerryYan 99aaa6e92c
ipn/ipnlocal: update PeerByID to return SelfNode and rename it to NodeByID (#16096)
Like NodeByKey, add an if stmt for checking the NodeId is SelfNode.

Updates #16052

Signed-off-by: Jerry Yan <792602257@qq.com>
6 months ago
Nick Khyl 9e28bfc69c ipn/ipnlocal,wgengine/magicsock: wait for magicsock to process pending events on authReconfig
Updates #16369

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Jordan Whited fcab50b276
ipn/ipnlocal,wgengine{/magicsock}: replace SetNetworkMap with eventbus (#16299)
Same with UpdateNetmapDelta.

Updates tailscale/corp#27502
Updates #15160

Signed-off-by: Jordan Whited <jordan@tailscale.com>
6 months ago
Anton Tolchanov a91fcc8813 ipn/ipnlocal: make pricing restriction message for Tailnet Lock clearer
Fixes tailscale/corp#24417

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
6 months ago
Juan Francisco Cantero Hurtado cbc14bd3b0 ipn: add missing entries for OpenBSD
Signed-off-by: Juan Francisco Cantero Hurtado <jfch@30041993.xyz>
6 months ago
Percy Wegmann 4431fb89c2 ipn/ipnlocal: add some verbose logging to taildrive peerapi handler
Updates tailscale/corp#29702

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Jordan Whited 8e6f63cf11
ipn/ipnlocal,wgengine/magicsock: use eventbus for node & filter updates (#16271)
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>
6 months ago
Nick Khyl 733bfaeffe ipn/ipnlocal: signal nodeBackend readiness and shutdown
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>
6 months ago
Nick Khyl 6a4d92ecef ipn/ipnlocal: replace nodeContext with nodeBackend in comments
We renamed the type in #15866 but didn't update the comments at the time.

Updates #cleanup

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Anton Tolchanov db34cdcfe7 cmd/tailscale/cli: add a risk message about rp_filter
We already present a health warning about this, but it is easy to miss
on a server when blackholing traffic makes it unreachable.

In addition to a health warning, present a risk message when exit node
is enabled.

Example:

```
$ tailscale up --exit-node=lizard
The following issues on your machine will likely make usage of exit nodes impossible:
- interface "ens4" has strict reverse-path filtering enabled
- interface "tailscale0" has strict reverse-path filtering enabled
Please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
To skip this warning, use --accept-risk=linux-strict-rp-filter
$
```

Updates #3310

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
6 months ago
James Sanderson 5716d0977d health: prefix Warnables received from the control plane
Updates tailscale/corp#27759

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
6 months ago
KevinLiang10 7b06532ea1
ipn/ipnlocal: Update hostinfo to control on service config change (#16146)
This commit fixes the bug that c2n requests are skiped when updating vipServices in serveConfig. This then resulted
netmap update being skipped which caused inaccuracy of Capmap info on client side. After this fix, client always
inform control about it's vipServices config changes.

Fixes tailscale/corp#29219

Signed-off-by: KevinLiang10 <37811973+KevinLiang10@users.noreply.github.com>
6 months ago
James Sanderson 5fde183754 ipn: add watch opt to include actions in health messages
Updates tailscale/corp#27759

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
6 months ago