Commit Graph

4898 Commits

Author SHA1 Message Date
Tom DNetto
18edd79421 control/controlclient,tailcfg: [capver 40] create KeySignature field in tailcfg.Node
We calve out a space to put the node-key signature (used on tailnets where network lock is enabled).

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-22 11:25:41 -07:00
Kris Brandow
5d559141d5 wgengine/magicsock: remove mention of Start
The Start method was removed in 4c27e2fa22, but the comment on NewConn
still mentioned it doesn't do anything until this method is called.

Signed-off-by: Kris Brandow <kris.brandow@gmail.com>
2022-08-22 11:26:41 -04:00
Kamal Nasser
f983962fc6 fix typo in incomplete default routes error message
Signed-off-by: Kamal Nasser <hello@kamal.io>
2022-08-20 14:02:17 -07:00
Aaron Klotz
b997304bf6 tailcfg: add CapabilityDataPlaneAuditLogs.
We're going to want to enable audit logging on a per-Tailnet basis. When this
happens, we want control to inform the Tailnet's clients of this capability.

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-08-19 14:21:17 -06:00
Maisem Ali
9197dd14cc net/dns: [win] add MagicDNS entries to etc/hosts
This works around the 2.3s delay in short name lookups when SNR is
enabled.
C:\Windows\System32\drivers\etc\hosts file. We only add known hosts that
match the search domains, and we populate the list in order of
Search Domains so that our matching algorithm mimics what Windows would
otherwise do itself if SNR was off.

Updates #1659

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-19 12:38:11 -05:00
Denton Gentry
3c8d257b3e cmd/tailscale: set /dev/net perms in configure-host
Several customers have had issues due to the permissions
on /dev/net. Set permissions to 0755.

Fixes https://github.com/tailscale/tailscale/issues/5048

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-08-19 06:55:34 -07:00
Joe Tsai
d32700c7b2
util/deephash: specialize for netip.Addr and drop AppendTo support (#5402)
There are 5 types that we care about that implement AppendTo:

	key.DiscoPublic
	key.NodePublic
	netip.Prefix
	netipx.IPRange
	netip.Addr

The key types are thin wrappers around [32]byte and are memory hashable.
The netip.Prefix and netipx.IPRange types are thin wrappers over netip.Addr
and are hashable by default if netip.Addr is hashable.
The netip.Addr type is the only one with a complex structure where
the default behavior of deephash does not hash it correctly due to the presence
of the intern.Value type.

Drop support for AppendTo and instead add specialized hashing for netip.Addr
that would be semantically equivalent to == on the netip.Addr values.

The AppendTo support was already broken prior to this change.
It was fully removed (intentionally or not) in #4870.
It was partially restored in #4858 for the fast path,
but still broken in the slow path.
Just drop support for it altogether.

This does mean we lack any ability for types to self-hash themselves.
In the future we can add support for types that implement:

	interface { DeepHash() Sum }

Test and fuzz cases were added for the relevant types that
used to rely on the AppendTo method.
FuzzAddr has been executed on 1 billion samples without issues.

Signed-off-by: Joe Tsai joetsai@digital-static.net
2022-08-18 22:54:56 -07:00
Brad Fitzpatrick
0de66386d4 cmd/viewer: add flag to support Clone generation without Views
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-17 15:15:27 -07:00
Kris Brandow
9ae1161e85 net/dnscache: fix v4addrs to return only v4 addrs
Update the v4addrs function to filter out IPv6 addresses.

Fixes regression from 8725b14056.

Signed-off-by: Kris Brandow <kris.brandow@gmail.com>
2022-08-17 14:19:37 -04:00
Joe Tsai
03f7e4e577
util/hashx: move from sha256x (#5388) 2022-08-16 13:15:33 -07:00
Joe Tsai
f061d20c9d
util/sha256x: rename Hash as Block512 (#5351)
Rename Hash as Block512 to indicate that this is a general-purpose
hash.Hash for any algorithm that operates on 512-bit block sizes.

While we rename the package as hashx in this commit,
a subsequent commit will move the sha256x package to hashx.
This is done separately to avoid confusing git.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-16 09:49:48 -07:00
Joe Tsai
44d62b65d0
util/deephash: move typeIsRecursive and canMemHash to types.go (#5386)
Also, rename canMemHash to typeIsMemHashable to be consistent.
There are zero changes to the semantics.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-16 09:31:19 -07:00
Joe Tsai
d53eb6fa11
util/deephash: simplify typeIsRecursive (#5385)
Any type that is memory hashable must not be recursive since
there are definitely no pointers involved to make a cycle.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-15 23:29:06 -07:00
Joe Tsai
23ec3c104a
util/deephash: remove unused stack slice in typeIsRecursive (#5363)
No operation ever reads from this variable.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-15 22:36:08 -07:00
Joe Tsai
c200229f9e
util/deephash: simplify canMemHash (#5384)
Put the t.Size() == 0 check first since this is applicable in all cases.
Drop the last struct field conditional since this is covered by the
sumFieldSize check at the end.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-15 22:22:18 -07:00
Brad Fitzpatrick
766ea96adf cmd/tailscaled: enable hybrid netstack mode on openbsd too
Apparently OpenBSD can forward packets with manual configuration,

https://github.com/tailscale/tailscale/issues/2498#issuecomment-1114216999

But this makes it work by default. People doing things by hand can
set TS_DEBUG_WRAP_NETSTACK=0 in the environment.

Change-Id: Iee5f32252f83af2baa0ebbe3f20ce9fec5f29e96
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-15 14:48:15 -07:00
Juan Font
ffc67806ef
tailcfg: bump capver for clients to talk Noise over any HTTPS port [capver 39]
Signed-off-by: Juan Font Alonso <juanfontalonso@gmail.com>
2022-08-15 12:18:14 -07:00
Joe Tsai
32a1a3d1c0
util/deephash: avoid variadic argument for Update (#5372)
Hashing []any is slow since hashing of interfaces is slow.
Hashing of interfaces is slow since we pessimistically assume
that cycles can occur through them and start cycle tracking.

Drop the variadic signature of Update and fix callers to pass in
an anonymous struct so that we are hashing concrete types
near the root of the value tree.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-15 11:22:28 -07:00
Denton Gentry
1c0286e98a scripts/installer.sh: add -y for unattended install
Fixes https://github.com/tailscale/tailscale/issues/5377

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-08-15 10:28:55 -07:00
Kris Brandow
8f38afbf8e net/stun: convert to use net/netip.AddrPort
Convert ParseResponse and Response to use netip.AddrPort instead of
net.IP and separate port.

Fixes #5281

Signed-off-by: Kris Brandow <kris.brandow@gmail.com>
2022-08-15 12:46:01 -04:00
Maisem Ali
c3270af52b Makefile: add target for wasm and make it part of check
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-15 09:43:35 -07:00
Tom DNetto
06eac9bbff tka: Use strict decoding settings, implement Unserialize()
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-15 09:20:53 -07:00
Maisem Ali
dbcc34981a cmd/tailscale/cli: fix build break
Accidental break from 64d482ff48.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-15 07:31:03 -07:00
Maisem Ali
d4916a8be3 .github/workflows: cancel previous CI runs on PR update
Currently scheduled runs are not canceled when we update PRs, those
results are unused and the resources are just wasted. Instead of doing
that, this PR makes it so that when a PR is updated (force-pushed or new
commit added) the previous runs are canceled.

https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#example-using-a-fallback-value

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-15 07:27:24 -07:00
Juan Font Alonso
64d482ff48 Allow any port for HTTPS when using Noise over TLS
Signed-off-by: Juan Font Alonso <juanfontalonso@gmail.com>
2022-08-15 06:43:43 -07:00
Maisem Ali
25865f81ee net/dns: disable NetBIOS on Tailscale interfaces
Like LLMNR, NetBIOS also adds resolution delays and we don't support it
anyway so just disable it on the interface.

Updates #1659

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-14 22:55:08 -07:00
Maisem Ali
545639ee44 util/winutil: consolidate interface specific registry keys
Code movement to allow reuse in a follow up PR.

Updates #1659

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-14 22:34:59 -07:00
Maisem Ali
23f37b05a3 atomicfile: update docs to clarify behavior of argument
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-13 21:31:40 -07:00
Maisem Ali
1cff719015 net/dns: [win] respond with SERVFAIL queries when no resolvers
Currently we forward unmatched queries to the default resolver on
Windows. This results in duplicate queries being issued to the same
resolver which is just wasted.

Updates #1659

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-12 17:09:30 -07:00
Joe Tsai
548fa63e49
util/deephash: use binary encoding of time.Time (#5352)
Formatting a time.Time as RFC3339 is slow.
See https://go.dev/issue/54093

Now that we have efficient hashing of fixed-width integers,
just hash the time.Time as a binary value.

Performance:

	Hash-24                19.0µs ± 1%    18.6µs ± 1%   -2.03%  (p=0.000 n=10+9)
	TailcfgNode-24         1.79µs ± 1%    1.40µs ± 1%  -21.74%  (p=0.000 n=10+9)

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-12 14:42:51 -07:00
Brad Fitzpatrick
0476c8ebc6 .github/workflows: delete flaky windows-race.yml
It flakes more often than it runs. It provides no value and builds
failure blindness, making people get used to submitting on red.

Bye.

Change-Id: If5491c70737b4c9851c103733b1855af2a90a9e9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-12 13:20:00 -07:00
Joe Tsai
1f7479466e
util/deephash: use sha256x (#5339)
Switch deephash to use sha256x.Hash.

We add sha256x.HashString to efficiently hash a string.
It uses unsafe under the hood to convert a string to a []byte.
We also modify sha256x.Hash to export the underlying hash.Hash
for testing purposes so that we can intercept all hash.Hash calls.

Performance:

	name                 old time/op    new time/op    delta
	Hash-24                19.8µs ± 1%    19.2µs ± 1%  -3.01%  (p=0.000 n=10+10)
	HashPacketFilter-24    2.61µs ± 0%    2.53µs ± 1%  -3.01%  (p=0.000 n=8+10)
	HashMapAcyclic-24      31.3µs ± 1%    29.8µs ± 0%  -4.80%  (p=0.000 n=10+9)
	TailcfgNode-24         1.83µs ± 1%    1.82µs ± 2%    ~     (p=0.305 n=10+10)
	HashArray-24            344ns ± 2%     323ns ± 1%  -6.02%  (p=0.000 n=9+10)

The performance gains is not as dramatic as sha256x over sha256 due to:
1. most of the hashing already occurring through the direct memory hashing logic, and
2. what does not go through direct memory hashing is slowed down by reflect.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-11 17:44:09 -07:00
Andrew Dunham
d942a2ff56
net/dnscache: try IPv6 addresses first (#5349)
Signed-off-by: Andrew Dunham <andrew@tailscale.com>

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-08-11 19:00:39 -04:00
Brad Fitzpatrick
90555c5cb2 tailcfg, control/controlclient: add PingRequest.URLIsNoise [capver 38]
Change-Id: I19bb63b6d99e96b2f9fd2c440afcc31d38137ded
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-11 09:41:06 -07:00
Brad Fitzpatrick
b33c337baa tailcfg: actually bump capver to 37, add test
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>
2022-08-11 09:28:54 -07:00
Joe Tsai
77a92f326d
util/deephash: avoid using sync.Pool for reflect.MapIter (#5333)
In Go 1.19, the reflect.Value.MapRange method uses "function outlining"
so that the allocation of reflect.MapIter is inlinable by the caller.
If the iterator doesn't escape the caller, it can be stack allocated.
See https://go.dev/cl/400675

Performance:

	name               old time/op    new time/op    delta
	HashMapAcyclic-24    31.9µs ± 2%    32.1µs ± 1%   ~     (p=0.075 n=10+10)

	name               old alloc/op   new alloc/op   delta
	HashMapAcyclic-24     0.00B          0.00B        ~     (all equal)

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-11 00:33:40 -07:00
Denton Gentry
5d731ca13f installer.sh: add manjaro-arm & EndeavourOS.
Fixes https://github.com/tailscale/tailscale/issues/5192
Fixes https://github.com/tailscale/tailscale/issues/5284

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-08-10 20:10:48 -07:00
Joe Tsai
1c3c6b5382
util/sha256x: make Hash.Sum non-escaping (#5338)
Since Hash is a concrete type, we can make it such that
Sum never escapes the input.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-10 17:31:44 -07:00
Joe Tsai
76b0e578c5
util/sha256x: new package (#5337)
The hash.Hash provided by sha256.New is much more efficient
if we always provide it with data a multiple of the block size.
This avoids double-copying of data into the internal block
of sha256.digest.x. Effectively, we are managing a block ourselves
to ensure we only ever call hash.Hash.Write with full blocks.

Performance:

	name    old time/op    new time/op    delta
	Hash    33.5µs ± 1%    20.6µs ± 1%  -38.40%  (p=0.000 n=10+9)

The logic has gone through CPU-hours of fuzzing.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-10 15:49:36 -07:00
Brad Fitzpatrick
090033ede5 cmd/derper: fix data race & server panic in manual cert mode
(Thanks for debugging, Roland!)

Fixes #4082

Change-Id: I400a64001c3c58899bb570b759b08e745abc0be1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-10 15:14:09 -07:00
dependabot[bot]
9996d94b3c build(deps): bump github.com/u-root/u-root from 0.8.0 to 0.9.0
Bumps [github.com/u-root/u-root](https://github.com/u-root/u-root) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/u-root/u-root/releases)
- [Changelog](https://github.com/u-root/u-root/blob/main/RELEASES)
- [Commits](https://github.com/u-root/u-root/compare/v0.8.0...v0.9.0)

---
updated-dependencies:
- dependency-name: github.com/u-root/u-root
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-08-10 09:52:57 -07:00
Brad Fitzpatrick
c8dd39fcbc .github/workflows: use a matrix for staticcheck GOOS/GOARCHes
Change-Id: Ic4eda169729117afc4031bbefbe265195b38c19b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-10 09:48:44 -07:00
Joe Tsai
539c5e44c5
util/deephash: always keep values addressable (#5328)
The logic of deephash is both simpler and easier to reason about
if values are always addressable.

In Go, the composite kinds are slices, arrays, maps, structs,
interfaces, pointers, channels, and functions,
where we define "composite" as a Go value that encapsulates
some other Go value (e.g., a map is a collection of key-value entries).

In the cases of pointers and slices, the sub-values are always addressable.

In the cases of arrays and structs, the sub-values are always addressable
if and only if the parent value is addressable.

In the case of maps and interfaces, the sub-values are never addressable.
To make them addressable, we need to copy them onto the heap.

For the purposes of deephash, we do not care about channels and functions.

For all non-composite kinds (e.g., strings and ints), they are only addressable
if obtained from one of the composite kinds that produce addressable values
(i.e., pointers, slices, addressable arrays, and addressable structs).
A non-addressible, non-composite kind can be made addressable by
allocating it on the heap, obtaining a pointer to it, and dereferencing it.

Thus, if we can ensure that values are addressable at the entry points,
and shallow copy sub-values whenever we encounter an interface or map,
then we can ensure that all values are always addressable and
assume such property throughout all the logic.

Performance:

	name                 old time/op    new time/op    delta
	Hash-24                21.5µs ± 1%    19.7µs ± 1%  -8.29%  (p=0.000 n=9+9)
	HashPacketFilter-24    2.61µs ± 1%    2.62µs ± 0%  +0.29%  (p=0.037 n=10+9)
	HashMapAcyclic-24      30.8µs ± 1%    30.9µs ± 1%    ~     (p=0.400 n=9+10)
	TailcfgNode-24         1.84µs ± 1%    1.84µs ± 2%    ~     (p=0.928 n=10+10)
	HashArray-24            324ns ± 2%     332ns ± 2%  +2.45%  (p=0.000 n=10+10)

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-09 22:00:02 -07:00
Brad Fitzpatrick
4ee64681ad tailcfg, control/controlclient: make Debug settings sticky in a map session [capver 37]
Fixes #4843

Change-Id: I3accfd91be474ac745cb47f5d6e866c37d5c5d2d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-09 14:36:09 -07:00
Brad Fitzpatrick
8e821d7aa8 types/opt: support an explicit "unset" value for Bool
Updates #4843

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-09 13:34:56 -07:00
Maisem Ali
3bb57504af net/dns/resolver: add comments clarifying nil error returns
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-09 13:32:11 -07:00
Maisem Ali
4497bb0b81 net/dns/resolver: return SERVFAIL when no upstream resolvers set
Otherwise we just keep looping over the same thing again and again.

```
dns udp query: upstream nameservers not set
dns udp query: upstream nameservers not set
dns udp query: upstream nameservers not set
```

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-09 13:28:03 -07:00
Charlotte Brandhorst-Satzkorn
0f12ead567
tsconnect: pass in authkey in dev mode (#5320)
This change allows for an auth key to be specified as a url query param
for use in development mode. If an auth key is specified and valid, it
will authorize the client for use immediately.

Updates #5144

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
2022-08-09 13:07:01 -07:00
Mihai Parparita
ab159f748b cmd/tsconnect: switch UI to Preact
Reduces the amount of boilerplate to render the UI and makes it easier to
respond to state changes (e.g. machine getting authorized, netmap changing,
etc.)

Preact adds ~13K to our bundle size (5K after Brotli) thus is a neglibible
size contribution. We mitigate the delay in rendering the UI by having a static
placeholder in the HTML.

Required bumping the esbuild version to pick up evanw/esbuild#2349, which
makes it easier to support Preact's JSX code generation.

Fixes #5137
Fixes #5273

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-08-08 21:54:06 -07:00
David Crawshaw
15b8665787 tka: stable text representation of AUMHash
This makes debugging easier, you can pass an AUMHash to a printf and get
a string that is easy to debug.

Also rearrange how directories/files work in the FS store: use the first
two characters of the string representation as the prefix directory, and
use the entire AUMHash string as the file name. This is again to aid
debugging: you can `ls` a directory and line up what prints out easily
with what you get from a printf in debug code.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2022-08-08 11:10:56 -07:00