Commit Graph

1033 Commits (329751c48e610d2a4cff72faa8db8eef3dbc165e)

Author SHA1 Message Date
Todd Neal eeccbccd08 support running in a FreeBSD jail
Since devd apparently can't be made to work in a FreeBSD jail
fall back to polling.

Fixes tailscale#2858

Signed-off-by: Todd Neal <todd@tneal.org>
3 years ago
Brad Fitzpatrick 69de3bf7bf wgengine/filter: let unknown IPProto match if IP okay & match allows all ports
RELNOTE=yes

Change-Id: I96eaf3cf550cee7bb6cdb4ad81fc761e280a1b2a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 9c5c9d0a50 ipn/ipnlocal, net/tsdial: make SOCKS/HTTP dials use ExitDNS
And simplify, unexport some tsdial/netstack stuff in the the process.

Fixes #3475

Change-Id: I186a5a5cbd8958e25c075b4676f7f6e70f3ff76e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick adc5997592 net/tsdial: give netstack a Dialer, start refactoring name resolution
This starts to refactor tsdial.Dialer's name resolution to have
different stages: in-memory MagicDNS vs system resolution. A future
change will plug in ExitDNS resolution.

This also plumbs a Dialer into netstack and unexports the dnsMap
internals.

And it removes some of the async AddNetworkMapCallback usage and
replaces it with synchronous updates of the Dialer's netmap
from LocalBackend, since the LocalBackend has the Dialer too.

Updates #3475

Change-Id: Idcb7b1169878c74f0522f5151031ccbc49fe4cb4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ad3d6e31f0 net/tsdial: move macOS/iOS peerapi sockopt logic from LocalBackend
Change-Id: I812cae027c40c70cdc701427b1a1850cd9bcd60c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c7fb26acdb net/tsdial: also plumb TUN name and monitor into tsdial.Dialer
In prep for moving stuff out of LocalBackend.

Change-Id: I9725aa9c3ebc7275f8c40e040b326483c0340127
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c37af58ea4 net/tsdial: move more weirdo dialing into new tsdial package, plumb
Not done yet, but this move more of the outbound dial special casing
from random packages into tsdial, which aspires to be the one unified
place for all outbound dialing shenanigans.

Then this plumbs it all around, so everybody is ultimately
holding on to the same dialer.

As of this commit, macOS/iOS using an exit node should be able to
reach to the exit node's DoH DNS proxy over peerapi, doing the sockopt
to stay within the Network Extension.

A number of steps remain, including but limited to:

* move a bunch more random dialing stuff

* make netstack-mode tailscaled be able to use exit node's DNS proxy,
  teaching tsdial's resolver to use it when an exit node is in use.

Updates #1713

Change-Id: I1e8ee378f125421c2b816f47bc2c6d913ddcd2f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick bf1d69f25b wgengine/monitor: fix docs on Mon.InterfaceState
The behavior was changed in March (in 7f174e84e6)
but that change forgot to update these docs.

Change-Id: I79c0301692c1d13a4a26641cc5144baf48ec1360
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d5405c66b7 net/tsdial: start of new package to unify all outbound dialing complexity
For now this just deletes the net/socks5/tssocks implementation (and
the DNSMap stuff from wgengine/netstack) and moves it into net/tsdial.

Then initialize a Dialer early in tailscaled, currently only use for the
outbound and SOCKS5 proxies. It will be plumbed more later. Notably, it
needs to get down into the DNS forwarder for exit node DNS forwading
in netstack mode. But it will also absorb all the peerapi setsockopt
and netns Dial and tlsdial complexity too.

Updates #1713

Change-Id: Ibc6d56ae21a22655b2fa1002d8fc3f2b2ae8b6df
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick bb91cfeae7 net/socks5/tssocks, wgengine: permit SOCKS through subnet routers/exit nodes
Fixes #1970

Change-Id: Ibef45e8796e1d9625716d72539c96d1dbf7b1f76
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ff9727c9ff wgengine/filter: fix, test NewAllowAllForTest
I probably broke it when SCTP support was added but nothing apparently
ever used NewAllowAllForTest so it wasn't noticed when it broke.

Change-Id: Ib5a405be233d53cb7fcc61d493ae7aa2d1d590a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 33c541ae30 ipn/ipnlocal: populate self status from netmap in ipnlocal, not magicsock.
Fixes #1933

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 283ae702c1 ipn/ipnlocal: start adding DoH DNS server to peerapi when exit node
Updates #1713

Change-Id: I8d9c488f779e7acc811a9bc18166a2726198a429
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder ad5e04249b wgengine/monitor: ignore adding/removing uninteresting IPs
One of the most common "unexpected" log lines is:

"network state changed, but stringification didn't"

One way that this can occur is if an interesting interface
(non-Tailscale, has interesting IP address)
gains or loses an uninteresting IP address (link local or loopback).

The fact that the interface is interesting is enough for EqualFiltered
to inspect it. The fact that an IP address changed is enough for
EqualFiltered to declare that the interfaces are not equal.

But the State.String method reasonably declines to print any
uninteresting IP addresses. As a result, the network state appears
to have changed, but the stringification did not.

The String method is correct; nothing interesting happened.

This change fixes this by adding an IP address filter to EqualFiltered
in addition to the interface filter. This lets the network monitor
ignore the addition/removal of uninteresting IP addresses.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick e8db43e8fa wgengine/router: demote TestDebugListRules fail to skip
Updates #3360

Change-Id: Ic5c98ea03f3171c13ab9293a0ae74d17fd04d149
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2ea765e5d8 go.mod: bump inet.af/netstack
Updates #2642 (I'd hoped, but doesn't seem to fix it)

Change-Id: Id54af7c90a1206bc7018215957e20e954782b911
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 946dfec98a wgengine/router: fix checkIPRuleSupportsV6 to actually use IPv6
Updates #3358 (should fix it)
Updates #391

Change-Id: Ia62437dfa81247b0b5994d554cf279c3d540e4e7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 9259377a7f wgengine/router: don't assume Linux was built with IP_MULTIPLE_TABLES
Updates #3351
Updates #391

Change-Id: I7e66b686e05f3c970846513679cc62556ebe322a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 0350cf0438 wgengine{,/router}: annotate some more errors
Updates #3351

Change-Id: I8b4f957d2051b3e29401bb449dbadbdada3a7c46
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 758c37b83d net/netns: thread logf into control functions
So that darwin can log there without panicking during tests.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 85184a58ed wgengine/wgcfg: recover from mismatched PublicKey/Endpoints
In rare circumstances (tailscale/corp#3016), the PublicKey
and Endpoints can diverge.

This by itself doesn't cause any harm, but our early exit
in response did, because it prevented us from recovering from it.

Remove the early exit.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 8ec44d0d5f wgengine/magicsock: remove some log spam
Fixes tailscale/corp#3070

Change-Id: Ie50031800ec8669e0596ad6d59d1e329a5c88516
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 61d0435ed9 wgengine/monitor: reduce Windows log spam
Fixes #3345

Change-Id: Icde9c92f88f98bb3b030d39b0424a7d389bceb88
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d24ed3f68e wgengine/router: add debug knob to resort to Linux "ip" command usage
Tailscale 1.18 uses netlink instead of the "ip" command to program the
Linux kernel.

The old way was kept primarily for tests, but this also adds a
TS_DEBUG_USE_IP_COMMAND environment knob to force the old way
temporarily for debugging anybody who might have problems with the
new way in 1.18.

Updates #391

Change-Id: I0236fbfda6c9c05dcb3554fcc27ec0c86456efd9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder b3d6704aa3 wgengine/magicsock: fix data race on endpoint.discoKey
endpoint.discoKey is protected by endpoint.mu.
endpoint.sendDiscoMessage was reading it without holding the lock.
This showed up in a CI failure and is readily reproducible locally.

The fix is in two parts.

First, for Conn.enqueueCallMeMaybe, eliminate the one-line helper method endpoint.sendDiscoMessage; call Conn.sendDiscoMessage directly.
This makes it more natural to read endpoint.discoKey in a context
in which endpoint.mu is already held.

Second, for endpoint.sendDiscoPing, explicitly pass the disco key
as an argument. Again, this makes it easier to read endpoint.discoKey
in a context in which endpoint.mu is already held.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick cf06f9df37 net/tstun, wgengine: add packet-level and drop metrics
Primarily tstun work, but some MagicDNS stuff spread into wgengine.

No wireguard reconfig metrics (yet).

Updates #3307

Change-Id: Ide768848d7b7d0591e558f118b553013d1ec94ad
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7901289578 wgengine/magicsock: add a stress test
And add a peerMap validate method that checks its internal invariants.

Updates tailscale/corp#3016

Change-Id: I23708e68ed44d81986d9e2be82029d4555547592
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 5a60781919 wgengine/magicsock: increase TestDiscokeyChange connection timeout
I believe that this should eliminate the flakiness.
If GitHub CI manages to be even slower that can be believed
(and I can believe a lot at this point),
then we should roll this back and make some more invasive changes.

Updates #654
Fixes #3247 (I hope)

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 773af7292b wgengine/magicsock: simplify peerMap.upsertEndpoint
We can do the "maybe delete" check unilaterally:
In the case of an insert, both oldDiscoKey
and ep.discoKey will be the zero value.

And since we don't use pi again, we can skip
giving it a name, which makes scoping clearer.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 9da22dac3d wgengine/magicsock: fix bug in peerMap.upsertEndpoint
Found by inspection by David Crawshaw while
investigating tailscale/corp#3016.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 16870cb754 wgengine/magicsock: fix typo in comment
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Anderson 41da7620af go.mod: update wireguard-go to pick up roaming toggle
wgengine/wgcfg: introduce wgcfg.NewDevice helper to disable roaming
at all call sites (one real plus several tests).

Fixes tailscale/corp#3016.

Signed-off-by: David Anderson <danderson@tailscale.com>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 24ea365d48 netcheck, controlclient, magicsock: add more metrics
Updates #3307

Change-Id: Ibb33425764a75bde49230632f1b472f923551126
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 57b039c51d util/clientmetrics: add new package to add metrics to the client
And annotate magicsock as a start.

And add localapi and debug handlers with the Prometheus-format
exporter.

Updates #3307

Change-Id: I47c5d535fe54424741df143d052760387248f8d3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 0532eb30db all: replace tailcfg.DiscoKey with key.DiscoPublic.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Josh Bleecher Snyder c467ed0b62 wgengine/wgcfg: always close io.Pipe
In DeviceConfig, we did not close r after calling FromUAPI.
If FromUAPI returned early due to an error, then it might
not have read all the data that IpcGetOperation wanted to write.
As a result, IpcGetOperation could hang, as in #3220.

We were also closing the wrong end of the pipe after IpcSetOperation
in ReconfigDevice.

To ensure that we get all available information to diagnose
such a situation, include all errors anytime something goes wrong.

This should fix the immediate crashing problem in #3220.
We'll then need to figure out why IpcGetOperation was failing.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3fd5f4380f util/multierr: new package
github.com/go-multierror/multierror served us well.
But we need a few feature from it (implement Is),
and it's not worth maintaining a fork of such a small module.

Instead, I did a clean room implementation inspired by its API.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Anderson 7e6a1ef4f1 tailcfg: use key.NodePublic in wire protocol types.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson c17250cee2 ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson c3d7115e63 wgengine: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 72ace0acba wgengine/magicsock: use key.NodePublic instead of tailcfg.NodeKey.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson d6e7cec6a7 types/netmap: use key.NodePublic instead of tailcfg.NodeKey.
Update #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 408b0923a6 wgengine/router: remove last non-test "ip" command usage on Linux
Updates #391

Change-Id: Ic2c3f8460b1e4b8d34b936a1725705fcc1effbae
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ff1954cfd9 wgengine/router: use netlink for ip rules on Linux
Using temporary netlink fork in github.com/tailscale/netlink until we
get the necessary changes upstream in either vishvananda/netlink
or jsimonetti/rtnetlink.

Updates #391

Change-Id: I6e1de96cf0750ccba53dabff670aca0c56dffb7c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 5dc5bd8d20 cmd/tailscaled, wgengine/netstack: always wire up netstack
Even if not in use. We plan to use it for more stuff later.

(not for iOS or macOS-GUIs yet; only tailscaled)

Change-Id: Idaef719d2a009be6a39f158fd8f57f8cca68e0ee
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 84c3a09a8d types/key: export constants for key size, not a method.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 6422789ea0 disco: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 418adae379 various: use NodePublic.AsNodeKey() instead of tailcfg.NodeKeyFromNodePublic()
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson eeb97fd89f various: remove remaining uses of key.NewPrivate.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson ccd36cb5b1 wgengine: remove use of legacy key parsing helper.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago