Commit Graph

4420 Commits (cfbbcf6d071dd13addbc1b38ef993a08d557ba22)
 

Author SHA1 Message Date
nyghtowl cfbbcf6d07 cmd/nginx-auth/nginx-auth: update auth to allow for new domains
With MagicDNS GA, we are giving every tailnet a tailnet-<hex>.ts.net name.
We will only parse out if legacy domains include beta.tailscale.net; otherwise,
set tailnet to the full domain format going forward.

Signed-off-by: nyghtowl <warrick@tailscale.com>
2 years ago
License Updater 9c66dce8e0 licenses: update win/apple licenses
Signed-off-by: GitHub <noreply@github.com>
2 years ago
Brad Fitzpatrick e470893ba0 wgengine/magicsock: use mak in another spot
Change-Id: I0a46d6243371ae6d126005a2bd63820cb2d1db6b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Andrew Dunham c72caa6672 wgengine/magicsock: use AF_PACKET socket + BPF to read disco messages
This is entirely optional (i.e. failing in this code is non-fatal) and
only enabled on Linux for now. Additionally, this new behaviour can be
disabled by setting the TS_DEBUG_DISABLE_AF_PACKET environment variable.

Updates #3824
Replaces #5474

Co-authored-by: Andrew Dunham <andrew@du.nham.ca>
Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Mihai Parparita 58f35261d0 cmd/tsconnect: remove debugging code
Remove test prefix added to validate the error code from 27f36f77c3.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Tom DNetto be95aebabd tka: implement credential signatures (key material delegation)
This will be needed to support preauth-keys with network lock in the future,
so getting the core mechanics out of the way now.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
License Updater 490acdefb6 licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
License Updater 84b74825f0 licenses: update tailscale{,d} licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Brad Fitzpatrick 9bd9f37d29 go.mod: bump wireguard/windows, which moves to using net/netip
Updates #5162

Change-Id: If99a3f0000bce0c01bdf44da1d513f236fd7cdf8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Charlotte Brandhorst-Satzkorn 185f2e4768
words: this title should have been a pun, but I chickened out (#5506)
Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
2 years ago
Denton Gentry 53e08bd7ea VERSION.txt: this is 1.31
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Andrew Dunham 70ed22ccf9
util/uniq: add ModifySliceFunc (#5504)
Follow-up to #5491. This was used in control... oops!

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Tom DNetto 7ca17b6bdb tka: validate key after UpdateKey before applying state
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Andrew Dunham e945d87d76
util/uniq: use generics instead of reflect (#5491)
This takes 75% less time per operation per some benchmarks on my mac.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2 years ago
Andrew Dunham 1ac4a26fee
ipn/localapi: send Tailscale version in ACME User-Agent (#5499)
Requested by a friend at Let's Encrypt.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Brad Fitzpatrick 761163815c tailcfg: add Hostinfo.Userspace{,Router} bits
Change-Id: Iad47f904872f2df146c1f63945f79cfddeac7fe8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 9f6c8517e0 net/dns: set OS DNS to 100.100.100.100 for route-less ExtraRecords [cap 41]
If ExtraRecords (Hosts) are specified without a corresponding split
DNS route and global DNS is specified, then program the host OS DNS to
use 100.100.100.100 so it can blend in those ExtraRecords.

Updates #1543

Change-Id: If49014a5ecc8e38978ff26e54d1f74fe8dbbb9bc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Mihai Parparita 27f36f77c3 cmd/tsconnect: output errors to the JS console too
We were just outputting them to the terminal, but that's hard to debug
because we immediately tear down the terminal when getting an error.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Xe Iaso 122bd667dc
cmd/gitops-pusher: be less paranoid about external modifications (#5488)
This makes a "modified externally" error turn into a "modified externally" warning. It means CI won't fail if someone does something manually in the admin console.

Signed-off-by: Xe <xe@tailscale.com>
2 years ago
Joe Tsai 21cd402204
logtail: do not log when backing off (#5485) 2 years ago
Denton Gentry 0ae0439668 docs/k8s: add IPv6 forwarding in proxy.yaml
Fixes https://github.com/tailscale/tailscale/issues/4999

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Denton Gentry 6dcc6313a6 CI: add `go mod tidy` workflow
Fixes https://github.com/tailscale/tailscale/issues/4567

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Denton Gentry 78dbb59a00 CI: make all workflows get Go version from go.mod
The next time we update the toolchain, all of the CI
Actions will automatically use it when go.mod is updated.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Joe Tsai 7e40071571
util/deephash: handle slice edge-cases (#5471)
It is unclear whether the lack of checking nil-ness of slices
was an oversight or a deliberate feature.
Lacking a comment, the assumption is that this was an oversight.

Also, expand the logic to perform cycle detection for recursive slices.
We do this on a per-element basis since a slice is semantically
equivalent to a list of pointers.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
James Tucker 90dc0e1702 wgengine: remove unused singleflight group
Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Mihai Parparita 2c18517121 cmd/tsconnect: add npm publish workflow
Adds an on-demand GitHub Action that publishes the package to the npm
registry (currently under tailscale-connect, will be moved to
@tailscale/connect once we get control of the npm org).

Makes the package.json for the NPM package be dynamically generated to
have the current Tailscale client version.

Updates #5415

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham d6c3588ed3
wgengine/wgcfg: only write peer headers if necessary (#5449)
On sufficiently large tailnets, even writing the peer header (~95 bytes)
can result in a large amount of data that needs to be serialized and
deserialized. Only write headers for peers that need to have their
configuration changed.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
James Tucker 81dba3738e wgengine: remove all peer status from open timeout diagnostics
Avoid contention from fetching status for all peers, and instead fetch
status for a single peer.

Updates tailscale/coral#72
Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
James Tucker ad1cc6cff9 wgengine: use Go API rather than UAPI for status
Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Maisem Ali 68d9d161f4 net/dns: [win] fix regression in disableDynamicUpdate
Somehow I accidentally set the wrong registry value here.
It should be DisableDynamicUpdate=1 and not EnableDNSUpdate=0.

This is a regression from 545639e.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick c66f99fcdc tailcfg, control/controlclient, ipn/ipnlocal: add c2n (control-to-node) system
This lets the control plane can make HTTP requests to nodes.

Then we can use this for future things rather than slapping more stuff
into MapResponse, etc.

Change-Id: Ic802078c50d33653ae1f79d1e5257e7ade4408fd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 08b3f5f070 wgengine/wgint: add shady temporary package to get at wireguard internals
For #5451

Change-Id: I43482289e323ba9142a446d551ab7a94a467c43a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Nahum Shalman 66d7d2549f logger: migrate rusage syscall use to x/sys/unix
This will be helpful for illumos (#697) and should be safe
everywhere else.

Signed-off-by: Nahum Shalman <nahamu@gmail.com>
2 years ago
Nahum Shalman d20392d413 cmd/tailscale: add emoji for illumos in status subcommand
Signed-off-by: Nahum Shalman <nahamu@gmail.com>
2 years ago
Andrew Dunham 58cc049a9f
util/cstruct: add package for decoding padded C structures (#5429)
I was working on my "dump iptables rules using only syscalls" branch and
had a bunch of C structure decoding to do. Rather than manually
calculating the padding or using unsafe trickery to actually cast
variable-length structures to Go types, I'd rather use a helper package
that deals with padding for me.

Padding rules were taken from the following article:
  http://www.catb.org/esr/structure-packing/

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2 years ago
Andrew Dunham 9b77ac128a
wgengine: print in-flight operations on watchdog trigger (#5447)
In addition to printing goroutine stacks, explicitly track all in-flight
operations and print them when the watchdog triggers (along with the
time they were started at). This should make debugging watchdog failures
easier, since we can look at the longest-running operation(s) first.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Andrew Dunham e1738ea78e
chirp: add a 10s timeout when communicating with BIRD (#5444)
Prior to this change, if BIRD stops responding wgengine.watchdogEngine
will crash tailscaled.

This happens because in wgengine.userspaceEngine, we end up blocking
forever trying to write a request to or read a response from BIRD with
wgLock held, and then future watchdog'd calls will block on acquiring
that mutex until the watchdog kills the process. With the timeout, we at
least get the chance to print an error message and decide whether we
want to crash or not.

Updates tailscale/coral#72

Signed-off-by: Andrew Dunham <andrew@tailscale.com>

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Joe Tsai 9bf13fc3d1
util/deephash: remove getTypeInfo (#5469)
Add a new lookupTypeHasher function that is just a cached front-end
around the makeTypeHasher function.
We do not need to worry about the recursive type cycle issue that
made getTypeInfo more complicated since makeTypeHasher
is not directly recursive. All calls to itself happen lazily
through a sync.Once upon first use.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai ab7e6f3f11
util/deephash: require pointer in API (#5467)
The entry logic of Hash has extra complexity to make sure
we always have an addressable value on hand.
If not, we heap allocate the input.
For this reason we document that there are performance benefits
to always providing a pointer.
Rather than documenting this, just enforce it through generics.

Also, delete the unused HasherForType function.
It's an interesting use of generics, but not well tested.
We can resurrect it from code history if there's a need for it.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai c5b1565337
util/deephash: move pointer and interface logic to separate function (#5465)
This helps pprof better identify which Go kinds take the most time
since the kind is always in the function name.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai d2e2d8438b
util/deephash: move map logic to separate function (#5464)
This helps pprof better identify which Go kinds take the most time
since the kind is always in the function name.

There is a minor adjustment where we hash the length of the map
to be more on the cautious side.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai 23c3831ff9
util/deephash: coalesce struct logic (#5466)
Rather than having two copies []fieldInfo,
just maintain one and perform merging in the same pass.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai 296b008b9f
util/deephash: move array and slice logic to separate function (#5463)
This helps pprof better identify which Go kinds take the most time
since the kind is always in the function name.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai 31bf3874d6
util/deephash: use unsafe.Pointer instead of reflect.Value (#5459)
Use of reflect.Value.SetXXX panics if the provided argument was
obtained from an unexported struct field.
Instead, pass an unsafe.Pointer around and convert to a
reflect.Value when necessary (i.e., for maps and interfaces).
Converting from unsafe.Pointer to reflect.Value guarantees that
none of the read-only bits will be populated.

When running in race mode, we attach type information to the pointer
so that we can type check every pointer operation.
This also type-checks that direct memory hashing is within
the valid range of a struct value.

We add test cases that previously caused deephash to panic,
but now pass.

Performance:

	name              old time/op    new time/op    delta
	Hash              14.1µs ± 1%    14.1µs ± 1%    ~     (p=0.590 n=10+9)
	HashPacketFilter  2.53µs ± 2%    2.44µs ± 1%  -3.79%  (p=0.000 n=9+10)
	TailcfgNode       1.45µs ± 1%    1.43µs ± 0%  -1.36%  (p=0.000 n=9+9)
	HashArray         318ns ± 2%     318ns ± 2%    ~      (p=0.541 n=10+10)
	HashMapAcyclic    32.9µs ± 1%    31.6µs ± 1%  -4.16%  (p=0.000 n=10+9)

There is a slight performance gain due to the use of unsafe.Pointer
over reflect.Value methods. Also, passing an unsafe.Pointer (1 word)
on the stack is cheaper than passing a reflect.Value (3 words).

Performance gains are diminishing since SHA-256 hashing now dominates the runtime.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai e0c5ac1f02
util/deephash: add debug printer (#5460)
When built with "deephash_debug", print the set of HashXXX methods.

Example usage:

	$ go test -run=GetTypeHasher/string_slice -tags=deephash_debug
	U64(2)+U64(3)+S("foo")+U64(3)+S("bar")+FIN

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Andrew Dunham e8f09d24c7
wgengine: use a singleflight.Group to reduce status contention (#5450)
Updates tailscale/coral#72

Signed-off-by: Andrew Dunham <andrew@tailscale.com>

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Joe Tsai 70f9fc8c7a
util/deephash: rely on direct memory hashing for primitive kinds (#5457)
Rather than separate functions to hash each kind,
just rely on the fact that these are direct memory hashable,
thus simplifying the code.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Brad Fitzpatrick f1c9812188 tailcfg: add Hostinfo.GoVersion
So next time something like #5340 happens we can identify all affected
nodes and have the control plane send them health warnings.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Nahum Shalman 214242ff62 net/dns/publicdns: Add Mullvad DoH
See https://mullvad.net/en/help/dns-over-https-and-dns-over-tls/

The Mullvad DoH servers appear to only speak HTTP/2 and
the use of a non-nil DialContext in the http.Transport
means that ForceAttemptHTTP2 must be set to true to be
able to use them.

Signed-off-by: Nahum Shalman <nahamu@gmail.com>
2 years ago
Joe Tsai 531ccca648
util/deephash: delete slow path (#5423)
Every implementation of typeHasherFunc always returns true,
which implies that the slow path is no longer executed.
Delete it.

h.hashValueWithType(v, ti, ...) is deleted as it is equivalent to:
	ti.hasher()(h, v)

h.hashValue(v, ...) is deleted as it is equivalent to:
	ti := getTypeInfo(v.Type())
	ti.hasher()(h, v)

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