11 Commits
Author SHA1 Message Date
holdmysocks e4986b4d52 Wake-on-LAN, a diagnostics download, connection tests and a note on what to expect
- "Wake a device at home": the status page, reachable from anywhere over
  the tailnet, can make the console broadcast a Wake-on-LAN packet for a
  device in a saved list.
- "Download diagnostics": one text file with the logs, version, firmware
  and settings for bug reports. E-mail addresses, the tailnet's name,
  public IP addresses, keys and the password are removed.
- "test" links for forwards and game streaming hosts open a TCP connection
  through the tailnet and say in plain words how it went.
- A short "what this does, and what it does not" note, opened before the
  first login.
- Screenshot updated.
2026-10-06 19:46:22 -04:00
holdmysocks 001837e9c0 Add a panel for reaching tailnet devices from the PS5; show how devices are connected
- "Reach a device from this PS5" on the status page sets up the local
  forwards that used to be a text box in the settings: pick a device and a
  port, and the page shows the address to use on the console. The port on
  the console is chosen automatically, and one that is already in use (the
  status page's own, game streaming, another service) is refused.
- The device list says whether each device is reached directly or through
  a relay, and a "test" link measures the connection.
- The page shows which DNS server the daemon uses.
- Tests run on GitHub for every push.
- make-release.ps1 -PlainName also writes the payload as tailscale.elf, the
  name 0.6.0's Install button looks for.
- Screenshot updated.
2026-10-06 19:29:29 -04:00
holdmysocks f3f31e59b9 Keep the signing key in the home directory; rest mode for hours is tested
The configuration directory is AppData on Windows, which a packaged app sees a private copy of: a key created from inside one was invisible to every other program. The key now lives in .ps5-tailscale in the home directory.
2026-10-06 19:03:21 -04:00
holdmysocks c41c46e9cd Update the status page screenshot for 0.6.2 2026-10-06 18:41:16 -04:00
holdmysocks b31667d3f0 Recommend a fixed file name for the copy an autoloader starts 2026-10-06 18:38:48 -04:00
holdmysocks edbaaed240 Say which DNS servers were tried when falling back 2026-10-06 18:33:29 -04:00
holdmysocks 4c6d9223b5 Do without a DNS payload; name the release file with its version
- Name lookups no longer depend on a DNS payload at 127.0.0.1:53. The
  daemon probes that address, the default gateway and three public
  resolvers, uses the first that answers, and looks again every five
  minutes or when the network changes.
- The release payload is now tailscale-<version>.elf. The updater looks
  for that name and still understands the old one. Releases up to 0.6.0
  only know the old name and have to be updated by hand once.
- The status page warns, next to Install and before installing, that the
  copy a payload manager or autoloader starts is not the one being
  replaced, unless it is named in the settings.
- Screenshot updated.
2026-10-06 18:25:31 -04:00
holdmysocks 070e838135 Update the status page screenshot for 0.6.0 2026-10-05 09:15:21 -04:00
holdmysocks 02fc73a04d Receive files with Taildrop; install signed updates from the status page
Taildrop: files sent to the console from the user's other devices are moved
from Tailscale's holding area to /data/tailscale/received (a setting),
announced on screen and listed on the status page with download links.

Updates: the status page can install a newer release when asked to. A
release carries tailscale.elf.sig, an Ed25519 signature over its version
and SHA-256; the daemon installs only what verifies against the public key
built into it, is the version the release claims and is newer than itself.
The payload is handed to the ELF loader, and the copy named by the new
payloadPath setting is replaced as well.

- tsd/relsig, tsd/cmd/signrelease: signing, verifying, and keeping the key
  (keygen, passphrase-protected backup and restore).
- tools/make-release.ps1 builds, signs and checksums a release.
- Files are no longer copied to sockets with sendfile, which the PS5
  kernel refuses.
2026-10-05 08:52:31 -04:00
holdmysocks bc19d3c251 Report start-up failures, limit access to own devices, warn about key expiry
- The launcher keeps a log (/data/tailscale/launcher.log) and shows a
  notification when it cannot start. A payload manager does not show what a
  payload prints, so a failed start used to leave no trace. The Go
  runtime's stderr goes to the same file until the daemon opens its log.
- New setting "who on the tailnet may connect": every device the tailnet's
  access rules allow (default), or only devices of the same user as the
  console. Applies to every forwarded TCP port, the UDP ports and the
  status page over the tailnet.
- The status page shows when the console's key expires and warns from two
  weeks before; the console shows a notification at 14, 3 and 1 days.
- A newer release is announced once on the console, not only on the page.
- Status page: click an address to copy it; OS, status and address columns
  no longer break mid-word; the facts stack on narrow screens.
2026-10-05 08:31:24 -04:00
holdmysocks 3e0e872884 Update the status page screenshot for the device filters 2026-10-04 19:37:21 -04:00
41 changed files with 4436 additions and 120 deletions

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+33
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@@ -0,0 +1,33 @@
name: tests
# The daemon's unit tests. They run on an ordinary machine; nothing here
# builds the PS5 payload, which needs the patched Go tree (docs/BUILDING.md).
on:
push:
branches: [main]
pull_request:
permissions:
contents: read
jobs:
test:
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, windows-latest]
runs-on: ${{ matrix.os }}
defaults:
run:
working-directory: tsd
steps:
- uses: actions/checkout@v4
- uses: actions/setup-go@v5
with:
go-version-file: tsd/go.mod
cache-dependency-path: tsd/go.sum
- name: gofmt
if: runner.os == 'Linux'
run: test -z "$(gofmt -l .)" || (gofmt -l . && exit 1)
- run: go vet ./...
- run: go test ./...
+183 -33
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@@ -27,11 +27,13 @@ The PS5 kernel has no tunnel device, so Tailscale cannot become a system-wide
VPN here. It runs inside one process:
- Games and PSN traffic do **not** go through Tailscale.
- Other apps on the console cannot open connections to tailnet addresses
directly. They can through a *local forward* (see
[game streaming](#game-streaming-moonlight-to-sunshine) and
[configuration](#configuration)).
- No subnet routing, Tailscale SSH, Taildrop or Funnel.
- Apps and the browser on the console cannot open tailnet addresses, and the
console's own IP address does not change. They can reach a device on your
tailnet through an address on the console itself: see
[reaching a device from the PS5](#reaching-a-device-from-the-ps5) and
[game streaming](#game-streaming-moonlight-to-sunshine).
- No subnet routing, Tailscale SSH or Funnel. Taildrop works for receiving
files, not for sending them.
- The console cannot use an exit node, and it does not offer itself as one.
Offering one is doable (it needs no tunnel device), but the PS5 would make
a terrible exit node: every packet would pass through this one low-priority
@@ -50,10 +52,14 @@ Tested on firmware 13.42 with elfldr 0.26.
## Install
There is one file, `tailscale.elf`, and it is an ordinary payload: running
it starts Tailscale.
There is one file, `tailscale-<version>.elf` (for example
`tailscale-0.6.1.elf`), and it is an ordinary payload: running it starts
Tailscale. The examples below call it `tailscale.elf`; use the name of the
file you downloaded, or rename it.
1. Download `tailscale.elf` from the [latest release](../../releases/latest).
1. Download `tailscale-<version>.elf` from the
[latest release](../../releases/latest). The `.sig` file next to it is
for the status page's Install button; you do not need it.
2. Send it to the console's ELF loader. Any payload sender works:
```bash
@@ -75,11 +81,20 @@ run also adds a **Tailscale** icon to the home screen (media section) that
opens the status page.
Tailscale runs until the console restarts. After a restart and jailbreak,
send `tailscale.elf` again; the login and settings are kept. If you use a
payload manager or autoloader, add the file there like any other payload.
send the file again; the login and settings are kept. If you use a payload
manager or autoloader, add the file there like any other payload.
To update, use the new `tailscale.elf` in place of the old one. Sending it
while Tailscale is running replaces the running copy.
To update, use the new file in place of the old one. Sending it while
Tailscale is running replaces the running copy. The file name changes with
every release, so **check your autoload settings after updating**: a payload
manager or autoloader that still points at the old file starts the old
version with the console, or nothing if you deleted it.
The easy way to avoid that: keep the copy your payload manager or autoloader
starts under a fixed name without a version, such as `tailscale.elf`. When
you update, save the new release over it under that same name, and the
autoload entry never needs to change. The status page always shows which
version is really running.
## Using it
@@ -124,20 +139,66 @@ Notes:
sleeps, so it is not on the tailnet then. Tailscale carries on by itself
once the console is awake again.
### Sending files to the console (Taildrop)
Send a file to the console from any of your own devices with Tailscale's
Taildrop: the share menu on a phone, `Send with Tailscale` on a desktop, or
`tailscale file cp <file> <console name>:`. The file lands in
`/data/tailscale/received` on the console (changeable in the settings), a
notification says so, and the status page lists it under **Received files**
with a download link. A file with the same name as an earlier one gets a
number; nothing is overwritten.
Taildrop only works between devices logged in as the same user; that is
Tailscale's rule. Sending files from the console is not implemented.
### The status page
`http://<console address>:8090`, on the LAN or over the tailnet, or the
**Tailscale** icon on the home screen. It shows the connection state, the
login link and your devices, and has the game streaming hosts, the settings,
and buttons for logging out, stopping and uninstalling. It also says when a
newer release is available.
and buttons for logging out, stopping and uninstalling.
**Updates.** When a newer release exists the page says so, and the console
shows a notification once. **Install** downloads the release, checks that it
is signed with this project's release key and is the version it claims to be,
and starts it; the login and settings are kept. Nothing is ever installed
without that button being pressed. It needs an ELF loader on port 9021, like
sending the payload by hand does.
Installing from the page replaces the copy that is running, not the file
your payload manager or autoloader starts with the console. **Check your
autoload settings after updating**, or the old version is back after the
next restart. To have that file replaced as well, put its path under
**Payload file to keep up to date** in the settings, for example
`/data/pldmgr/payloads/Tailscale/tailscale.elf`. The file keeps the name it
has there, whatever version is in it, so your autoload entry keeps working.
That is one more reason to give that copy a fixed name such as
`tailscale.elf` and not the versioned name it was downloaded under.
0.6.0 looks for a file named plain `tailscale.elf`, which 0.6.1 and 0.6.2 do
not have; 0.7.0 carries it as well, so 0.6.0 can install 0.7.0 from the
page.
**Devices.** The list is grouped into your tailnet's devices and devices
shared with you, and marks the ones that can be used as an exit node. It can
be searched (name, address, OS, tag, place) and limited to devices that are
online. If your tailnet has a VPN add-on such as Mullvad, its exit servers
are counted but kept out of the list until you tick **Show VPN exit
servers**.
servers**. Click an address to copy it.
Under a device's name the page says how the console currently reaches it:
**direct**, or **relayed** through one of Tailscale's relay servers, which is
slower and worth knowing when a stream stutters. Devices with no recent
traffic show nothing. **test** measures the connection there and then and
shows the round-trip time; it also wakes a connection that was idle.
**Key expiry.** The page shows when the console's Tailscale key expires. By
default that is 180 days after logging in, and an expired key takes the
console off your tailnet until someone presses **Log in again**. From two
weeks before, the page and a notification on the console warn about it. To
avoid it altogether, open the Tailscale admin console, find the console in
the list of machines and choose **Disable key expiry**.
**Password.** Out of the box the page has no password, like the console's
other homebrew services: anyone on your LAN, or on your tailnet if your ACLs
@@ -145,9 +206,10 @@ allow it, can use it. Set one under **Settings**. It is then asked for on
every device except the console itself. If you forget it, delete the
`passwordHash` line from `/data/tailscale/config.json`.
**Settings.** The name on the tailnet, the password, which UDP ports are
reachable and which TCP ports are not, extra forwards, the HTTP proxy, the
priority, and update checks. Most take effect when saved; the page says which
**Settings.** The name on the tailnet, the password, who on the tailnet may
connect, which UDP ports are reachable and which TCP ports are not, extra
forwards, the HTTP proxy, the folder for received files, the payload file to
keep up to date, the priority, and update checks. Most take effect when saved; the page says which
ones need Tailscale to be started again.
### Game streaming (Moonlight to Sunshine)
@@ -192,11 +254,49 @@ Notes:
the cause was not established.
- Tested with ProsperoLight.
### Other apps on the console
### Reaching a device from the PS5
"Extra forwards" in the settings relay any localhost port to a tailnet host
in the same way, TCP or UDP. One per line, for example
`tcp 127.0.0.1:8096 my-nas:8096`.
The PS5's browser and apps cannot open a tailnet address such as
`100.64.0.4` or `my-nas`. To reach a service on one of your devices from the
console:
1. On the status page, under **Reach a device from this PS5**, press **Add a
device**. Enter the device (its tailnet name or address) and the port the
service uses, and press **Save**.
2. The page shows the address to use on the PS5, for example
`127.0.0.1:8096`. Open that in the PS5's browser, or enter it in the app.
Each line covers one port of one device, TCP or UDP. The port on the console
is the same as on the device where that is possible; a port below 1024 gets
8000 added (80 becomes 8080). Pages that redirect to their own name will not
follow, and HTTPS sites complain about the certificate, because the browser
sees `127.0.0.1`; plain HTTP services work best, and the tailnet encrypts
the connection anyway.
**test** next to a line tries the connection the way the PS5 would make it
and says what happened: the device answers, the device answered but nothing
listens on that port, there is no answer (off, asleep or firewalled), or
there is no device with that name. The game streaming hosts have the same
link, which checks whether Sunshine answers.
### Waking a PC at home
A sleeping PC cannot be reached over Tailscale, because nothing on it is
running. The console is on the same home network, though, and can send it a
Wake-on-LAN packet:
1. Under **Wake a device at home** on the status page, press **Add a
device**, give it a name and its network card's MAC address (on Windows,
the "Physical address" in `ipconfig /all`), and press **Save**.
2. From wherever you are, open the status page over Tailscale and press
**Wake**. Give the PC half a minute, then connect to it.
The PC needs Wake-on-LAN turned on, in its firmware setup and in the network
card's settings, and it works most reliably over a cable. The console sends
the packet to every device on its network; there is no reply, so the page
cannot tell whether the PC heard it. Only devices in the list can be woken.
### Other apps on the console
The daemon can also run an HTTP proxy that reaches tailnet hosts, for apps
that have their own proxy setting. It is off unless you give it an address in
@@ -229,6 +329,9 @@ optional.
],
"udpPorts": [9295, 9296, 9297, 9302],
"blockedPorts": [],
"allowFrom": "",
"receiveDir": "/data/tailscale/received",
"payloadPath": "",
"priority": "",
"checkUpdates": true,
"verbose": false
@@ -244,11 +347,15 @@ optional.
| `httpProxyAddr` | Where the HTTP proxy listens. Empty, the default, is off. |
| `controlURL` | A coordination server other than Tailscale's. File only. |
| `sunshineHosts` | The Sunshine hosts and, where it is not 47989, their port. |
| `forwards` | Extra local forwards: `proto` is `tcp` or `udp`, `listen` a localhost address, `target` a tailnet host and port. |
| `forwards` | What "Reach a device from this PS5" sets up: `proto` is `tcp` or `udp`, `listen` the address on the console, `target` a tailnet device and port. |
| `udpPorts` | The console's UDP ports reachable from the tailnet. Default `[9295, 9296, 9297, 9302]` (Remote Play). `[]` turns inbound UDP off. |
| `blockedPorts` | Local TCP ports that are never exposed to the tailnet. |
| `allowFrom` | `"own"` lets only devices logged in as the same user as the console connect; other users' devices and devices shared into the tailnet are turned away. Anything else is the default: every device your tailnet's access rules allow. If the console is tagged, `"own"` means the devices of its own tailnet. |
| `receiveDir` | Where files sent to the console with Taildrop are put. |
| `wake` | Devices the status page can wake with Wake-on-LAN: a `name` and the network card's `mac` each. |
| `payloadPath` | The copy of the payload that is started with the console, if there is one; best kept under a fixed name such as `tailscale.elf`. An update installed from the status page replaces its contents and leaves its name alone. Empty: none. |
| `priority` | `"high"` lets the daemon compete with games for CPU time; anything else is the default, low. Applied when Tailscale starts. |
| `checkUpdates` | Ask GitHub twice a day whether a newer release exists, to show it on the status page. Nothing is downloaded. |
| `checkUpdates` | Ask GitHub twice a day whether a newer release exists, to show it on the status page and announce it once on the console. Nothing is downloaded. |
| `verbose` | Put Tailscale's own log in the main log as well. |
Files on the console:
@@ -259,6 +366,8 @@ Files on the console:
| `/data/tailscale/state/` | Tailscale's state, including the login. |
| `/data/tailscale/tailscale.log` | The daemon's log, rotated at 2 MB. |
| `/data/tailscale/tailscale-debug.log` | Tailscale's detailed log, up to 4 MB plus one older file. |
| `/data/tailscale/received/` | Files received with Taildrop. |
| `/data/tailscale/launcher.log` | What the payload did before Tailscale itself started. The place to look when nothing seems to happen. |
| `/data/tailscale/icon-installed` | Marks that the home screen icon was added. Delete it to have the icon added again on the next start. |
| `/data/tailscale/icon-helper.elf` | The small payload that adds and removes the icon. |
| `/user/app/TSCL00001/` | The home screen icon. |
@@ -277,20 +386,44 @@ Left to do by hand:
## Troubleshooting
- **Nothing happens when the payload is sent.** If the payload cannot start,
it says why in a notification on the console and in
`/data/tailscale/launcher.log`; fetch that file over FTP. A payload manager
does not show what a payload prints, so sending it from a PC shows more:
`socat -t 30 - TCP:<console>:9021 < tailscale.elf`, or
`.\tools\ps5send.ps1 -File tailscale.elf -PS5Host <console>` on Windows.
If the log ends with "starting the Go program" and no status page appears,
whatever follows that line is the crash report to send.
- **The status page does not open on the console, but does from a PC.**
Check that the PS5's proxy server setting is "Do Not Use".
- **The Moonlight client cannot find the host.** The host to add is
`127.0.0.1` (or `127.0.0.1:<port>` for a host on another port), and the
Sunshine host must be listed on the status page with the port its Sunshine
uses.
- **It stays on "Starting", or the update check never finds anything.** The
daemon looks names up itself: at a DNS payload on the console
(`127.0.0.1:53`) if one is running, otherwise at your router, otherwise at
a public resolver (1.1.1.1, 8.8.8.8, 9.9.9.9). The log says which one it
uses in a line starting with `DNS:`. If none answers, the console has no
working internet connection for payloads. The DNS server set in the PS5's
network settings plays no part. The status page shows the one in use under
"Name lookups".
- **A stream or Remote Play stutters.** Look at the device in the list on the
status page and press **test**. "Relayed" means the two devices could not
connect directly and the traffic takes a detour; that is usually a router
or firewall on one side blocking UDP.
- **"Not logged in" after logging in.** Press **Log in again** for a fresh
link.
- **Forgot the status page password.** Delete the `passwordHash` line from
`/data/tailscale/config.json` and start Tailscale again, or use the page on
the console itself, where no password is asked.
- **Something else.** `http://<console>:8090/api/logs?full=1` is the daemon's
log and `/api/logs?debug=1` is Tailscale's detailed log. Please attach them
to bug reports, after checking them for anything you consider private.
- **Something else.** Press **Download diagnostics** on the status page and
attach the file to your bug report. It holds the logs, the version, the
firmware and the settings. E-mail addresses, your tailnet's name, public IP
addresses, keys and the password are removed from it; device names and
tailnet addresses are not, so read it before posting. If the status page
never comes up, there is nothing to press: fetch
`/data/tailscale/launcher.log` over FTP instead.
## Security
@@ -300,11 +433,22 @@ Left to do by hand:
tailnet Tailscale encrypts it.
- All listening TCP ports on the console, and the UDP ports in `udpPorts`,
become reachable from your tailnet. That includes the payload loader, which
runs anything sent to it. Use Tailscale ACLs if other people share your
tailnet, or list ports under "TCP ports never exposed".
runs anything sent to it. If other people use your tailnet or share
devices into it, set **Who on the tailnet may connect** to your own devices
only, use Tailscale ACLs, or list ports under "TCP ports never exposed".
- The local forwards and the proxy are for the console's own apps and are
not exposed to the tailnet.
- With update checks on, the console contacts `api.github.com` twice a day.
- Name lookups by the daemon go to the console's DNS payload if there is
one, otherwise to your router or a public resolver. They are only the
daemon's own lookups (Tailscale's servers, GitHub, what you send through
the HTTP proxy), not the console's.
- An update is only installed when **Install** is pressed, and only if it
carries a valid signature made with the project's release key, which is
not kept on GitHub. A release put up by someone who got into the GitHub
account, or changed on the way, is refused.
- Files received with Taildrop come only from devices logged in as the same
user. The status page hands them out as downloads and never displays them.
## Resource use
@@ -321,14 +465,20 @@ the tailnet, a ProsperoLight stream from a Sunshine host through the forward,
two forwarded hosts on different ports (with a stand-in for the second), the
HTTP proxy, adding and removing the home screen icon, the password from the
LAN and the tailnet, changing settings from the page, both priority settings,
the update check, a short stay in rest mode (about a minute: the same process
carried on and was back on the tailnet within a second of waking).
the update check, installing an update from the page (rehearsed with a test
release, including replacing a second copy of the payload), receiving files
with Taildrop, reaching a device through a forward set up on the page, the
connection tests, the diagnostics file, limiting connections to your own devices (with the
console's owner's devices only; a refusal has not been seen for real), a
stay in rest mode, both a minute and nine and a half hours: the same process
carried on and was back on the tailnet after waking.
Remote Play through the tailnet address works with Chiaki and with Asobi on
iOS and Android.
Not tested: hours in rest mode, switching between Wi-Fi and Ethernet while
running, the complete Uninstall
Not tested: whether a PC actually wakes from the Wake button (the console
reports sending the packets; no sleeping PC was at hand), switching between
Wi-Fi and Ethernet while running, rest mode on Wi-Fi, the complete Uninstall
on a console (its parts were tested separately), whether High priority
improves Remote Play, a real Sunshine host on a non-default port, other
firmware versions, coordination servers other than Tailscale's.
+57
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@@ -58,6 +58,63 @@ These folders are not in the repository.
`-HomeIcon` also builds `appicon\` into `out\appicon.elf` and embeds it in
the launcher.
## Making a release
```powershell
.\tools\make-release.ps1 -Version 1.2.3
```
builds the payload and puts three files in `out\release-1.2.3`:
`tailscale-1.2.3.elf`, its signature `tailscale-1.2.3.elf.sig`, and
`SHA256SUMS.txt`. The version in the file name is what the status page looks
for (`payloadAssetName` in `tsd\selfupdate.go`).
Attach all three to the GitHub release, and tag it `v1.2.3`. The status
page's **Install** button only offers a release that has the first two, and
only installs it if the signature is good and is for that very version.
### The signing key
Releases are signed with an Ed25519 key. Its public half is
`updatePublicKey` in `tsd\selfupdate.go`; the private half is a small file
that stays out of the repository:
```
%USERPROFILE%\.ps5-tailscale\release-signing.key (Windows)
~/.ps5-tailscale/release-signing.key (Linux, macOS)
```
`PS5TS_SIGNING_KEY` names another location. The file is not encrypted, so
that a release can be made without typing anything; treat it like an SSH
key. The tool that manages it is `tsd\cmd\signrelease`, run from `tsd`:
```powershell
go run ./cmd/signrelease pubkey # show the public key
go run ./cmd/signrelease backup -out Z:\keys\ps5-tailscale-signing.backup
go run ./cmd/signrelease restore -in Z:\keys\ps5-tailscale-signing.backup
```
- **Back it up.** `backup` writes a copy encrypted with a passphrase you
type, meant for a NAS, a USB stick or a password manager. Without the
passphrase the copy is useless, to you as well, so keep the passphrase
somewhere other than next to the file.
- **Building on another PC.** Copy the backup there and run `restore`. It
refuses to overwrite a key that is already present.
- **If the key is lost,** consoles running releases made with it can no
longer install updates from the page: a release signed with a new key is
refused. Their owners have to send the new payload by hand once.
- **If the key leaks,** make a new one (`keygen`, after moving the old file
away), put its public half in `selfupdate.go` and release. The same
one-time manual update applies.
- **A fork** that publishes its own releases needs its own key and its own
`releasesAPI` in `tsd\update.go`.
Test builds can use a throwaway key and a local "release":
```powershell
.\tools\build-payload.ps1 -GoDir tsd -Name test -Version 0.0.1 -HomeIcon `
-Set 'main.updatePublicKey=<base64>', 'main.releasesAPI=http://127.0.0.1:18099/latest.json'
```
## Sending to the console
```powershell
+55 -4
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@@ -22,6 +22,14 @@ specification.
to a fresh 1 MB stack and jumps to the Go entry point. The embedded copy
is then released with `madvise(MADV_FREE)`.
The launcher keeps a log, `/data/tailscale/launcher.log` (`report.c`): the
firmware version, each step that fails, and a last line before it jumps into
the Go program. A failure is also shown as a notification, because a payload
manager does not show what a payload prints. Just before the jump, stderr is
pointed at that log, so that a Go runtime that dies before the daemon has
opened its own log leaves its message there. What cannot be reported this
way is a failure in the SDK's crt, which runs before any of this.
**The daemon** (`tsd/`, Go): a `tsnet` server.
- Inbound: tsnet's fallback TCP handler pipes each tailnet connection to
@@ -54,7 +62,39 @@ specification.
the priority, before any Go code runs, so the daemon leaves it in
`/data/tailscale/priority` for the next start.
- Update notice (`update.go`): the latest release tag from the GitHub API,
twice a day, compared with the running version.
twice a day, compared with the running version. A newer release is shown
on the page and announced once on the console; the announced version is
kept in `/data/tailscale/update-notified`.
- Installing an update (`selfupdate.go`, `relsig/`): on request only. The
release's `tailscale-<version>.elf.sig` names a version and a SHA-256 and carries an
Ed25519 signature over both. The daemon checks the signature against the
public key built into it, that the version is the release's and newer than
its own, downloads the payload to `/data/tailscale/update/`, compares the
hash, optionally replaces the copy named by `payloadPath` (temporary file,
then rename), and writes the payload to the ELF loader on 127.0.0.1:9021.
The new instance stops the old one as with any payload sent again, and
removes the download when it starts. The connection to the loader is kept
open until the old process exits, because it is the new payload's standard
output.
- Taildrop (`taildrop.go`): tsnet does not link Taildrop in; importing
`tailscale.com/feature/taildrop` does. Received files wait in
`state/files/<login>-uid-<n>/`. The daemon long-polls for them, copies each
to `receiveDir` under a name that does not exist yet, and deletes it from
the holding area.
- The device list says how each peer is reached, from the peer's status:
a current direct address means direct, otherwise the relay region. The
"test" link runs a disco ping (`LocalClient.Ping`), which measures the path
WireGuard would use without sending IP traffic, and reports the latency.
- Tests run on GitHub for every push (`.github/workflows/test.yml`), on
Linux and Windows. They do not build the payload.
- Who may connect (`access.go`): with `allowFrom` set to `own`, the TCP
handler and the UDP relays ask Tailscale who the sender is (WhoIs) and
serve only nodes of the same user as the console, from the console's own
tailnet. Answers are kept for a minute per address. Anything that cannot
be established is refused.
- Key expiry (`keyexpiry.go`): the date comes from the node's own status.
The page warns from 14 days before, and the console shows a notification
at 14, 3 and 1 days.
- When a listener reports that it had to reopen its socket (the PS5's
network was reconfigured), the daemon asks Tailscale to rebind and re-STUN
instead of waiting for its interface polling. See [Rest mode](#rest-mode)
@@ -129,7 +169,12 @@ apply `SOCK_NONBLOCK`/`SOCK_CLOEXEC` with `fcntl`.
blocks and hands the converted entries out across calls.
- Unix domain sockets cannot be bound on `/data`.
- There is no `/etc/resolv.conf` and no CA bundle. Go's resolver falls back
to `127.0.0.1:53`; the daemon imports `x509roots/fallback` for TLS roots.
to `127.0.0.1:53`, which only answers if a DNS payload runs on the
console. The daemon therefore installs its own resolver (`dns.go`): it
probes `127.0.0.1:53`, the default gateway and three public resolvers,
uses the first that answers, and checks again every five minutes or when
the network changes. The daemon imports `x509roots/fallback` for TLS
roots.
- A payload's stdin, stdout and stderr are the ELF loader's TCP connection.
Go kills a process whose write to fd 1 or 2 fails with `EPIPE`, so the
daemon moves that connection to another descriptor and points 1 and 2 at
@@ -137,6 +182,10 @@ apply `SOCK_NONBLOCK`/`SOCK_CLOEXEC` with `fcntl`.
- The SDK's `kernel_mprotect()` rewrites the protection of the whole kernel
map entry that contains the address. The loader first splits the text range
off with an ordinary `mprotect()`.
- `sendfile` on a socket fails with "socket is not connected". Go uses it
whenever a file is copied straight to a TCP connection (`io.Copy(conn,
file)`, `http.ServeContent` with a file), so the daemon hides the file
behind a plain reader in those places.
- When the network is reconfigured (connection settings changed, Wi-Fi to
Ethernet), listening sockets fail with errno 163, a Sony-specific code, and
do not recover. The daemon's listeners reopen themselves
@@ -172,7 +221,7 @@ threads take turns. With it, the same test passes (5 collections in about
## Rest mode
Observed once, for a rest of about a minute on Ethernet. The process is not
Observed first for a rest of about a minute on Ethernet. The process is not
killed: it is frozen with the rest of the console and continues afterwards.
- Going to sleep, the network is taken down first. Every socket fails with
@@ -188,7 +237,9 @@ killed: it is frozen with the rest of the console and continues afterwards.
answered through the tailnet address afterwards without anything being
restarted.
A rest of hours has not been tried, nor one on Wi-Fi.
A rest of nine and a half hours went the same way: the monitor reported the
time jump on waking and the same process carried on. Rest mode on Wi-Fi has
not been tried.
## Home screen icon
Binary file not shown.

Before

Width:  |  Height:  |  Size: 67 KiB

After

Width:  |  Height:  |  Size: 159 KiB

+18 -8
View File
@@ -7,6 +7,7 @@
* FreeBSD kernel would: %rdi pointing at argc/argv/envp/auxv. */
#include <elf.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
@@ -17,6 +18,7 @@
#include <ps5/kernel.h>
#include "goload.h"
#include "report.h"
#define PS5_PAGE_SIZE 0x4000ul
#define PAGE_TRUNC(x) ((x) & ~(PS5_PAGE_SIZE - 1))
@@ -134,7 +136,7 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
int envc = 0;
if (image_check(image, size)) {
fprintf(stderr, "goload: not a relocatable x86-64 ELF image\n");
report_fail("goload: the embedded program is not a relocatable x86-64 ELF image");
return -1;
}
@@ -143,7 +145,7 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
continue;
}
if (phdr[i].p_offset + phdr[i].p_filesz > size) {
fprintf(stderr, "goload: truncated image\n");
report_fail("goload: the embedded program is truncated");
return -1;
}
if (phdr[i].p_vaddr < min_vaddr) {
@@ -154,7 +156,7 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
}
}
if (min_vaddr >= max_vaddr) {
fprintf(stderr, "goload: image has no loadable segments\n");
report_fail("goload: the embedded program has no loadable segments");
return -1;
}
min_vaddr = PAGE_TRUNC(min_vaddr);
@@ -162,7 +164,7 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
base = mmap(0, max_vaddr - min_vaddr, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (base == MAP_FAILED) {
perror("goload: mmap image");
report_fail("goload: no memory for the program (mmap: %s)", strerror(errno));
return -1;
}
bias = (uintptr_t)base - min_vaddr;
@@ -185,7 +187,7 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
}
for (size_t i = 0; rela && i < relasz / sizeof(*rela); i++) {
if (ELF64_R_TYPE(rela[i].r_info) != R_X86_64_RELATIVE) {
fprintf(stderr, "goload: unsupported relocation type %u\n", (unsigned)ELF64_R_TYPE(rela[i].r_info));
report_fail("goload: unsupported relocation type %u", (unsigned)ELF64_R_TYPE(rela[i].r_info));
return -1;
}
*(uintptr_t *)(bias + rela[i].r_offset) = bias + rela[i].r_addend;
@@ -205,18 +207,19 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
* that contains the address, so first let a regular mprotect split the
* text range off into an entry of its own. */
if (mprotect((void *)start, end - start, PROT_READ)) {
perror("goload: mprotect");
report_fail("goload: mprotect: %s", strerror(errno));
return -1;
}
if (kernel_mprotect(-1, start, end - start, PROT_READ | PROT_EXEC)) {
fprintf(stderr, "goload: kernel_mprotect failed\n");
report_fail("goload: could not make the program executable (kernel_mprotect failed); "
"this firmware or jailbreak may not allow it");
return -1;
}
}
stack = mmap(0, GO_STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (stack == MAP_FAILED) {
perror("goload: mmap stack");
report_fail("goload: no memory for the stack (mmap: %s)", strerror(errno));
return -1;
}
@@ -251,6 +254,13 @@ goload_run(const uint8_t *image, size_t size, char *const argv[], char *const en
fprintf(stderr, "goload: image %p..%p entry %#lx stack %p..%p argc=%d\n", base,
base + (max_vaddr - min_vaddr), (unsigned long)(bias + ehdr->e_entry), stack, stack + GO_STACK_SIZE, argc);
dbg_install((uintptr_t)base, min_vaddr);
#else
/* From here on nothing is printed by the launcher. If the Go runtime dies
* before the daemon has opened its own log, its message lands in the
* launcher log instead of being lost with the sender's connection. */
report_log("launcher: starting the Go program");
fflush(stderr);
report_capture_stderr();
#endif
fflush(stdout);
+5 -2
View File
@@ -9,6 +9,8 @@
#ifdef ICON_HELPER
#include "report.h"
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
@@ -103,6 +105,7 @@ home_icon_install_once(void) {
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(fd, (struct sockaddr *)&addr, sizeof(addr))) {
/* No ELF loader on the usual port: go without an icon this time. */
report_log("launcher: home screen icon not installed: no ELF loader on port %d", LOADER_PORT);
close(fd);
return;
}
@@ -139,9 +142,9 @@ home_icon_install_once(void) {
write(fd, ICON_VERSION, sizeof(ICON_VERSION) - 1);
close(fd);
}
fprintf(stderr, "launcher: home screen icon installed\n");
report_log("launcher: home screen icon installed");
} else {
fprintf(stderr, "launcher: home screen icon not installed: %s\n", got ? reply : "no reply from the helper");
report_log("launcher: home screen icon not installed: %s", got ? reply : "no reply from the helper");
}
}
+4 -1
View File
@@ -12,6 +12,7 @@
#include "goload.h"
#include "homeicon.h"
#include "report.h"
#ifndef GO_IMAGE
#error "GO_IMAGE must name the Go binary to embed"
@@ -154,12 +155,14 @@ main(int argc, char **argv) {
kernel_set_ucred_rgid(pid, 0);
kernel_set_ucred_svgid(pid, 0);
report_begin();
home_icon_install_once();
if (leave_realtime_class()) {
/* Without this a runaway goroutine could hang the console, so do not
* take the chance. */
fprintf(stderr, "launcher: could not leave the real-time scheduling class; not starting\n");
report_fail("launcher: could not lower the scheduling priority; not starting, "
"because a busy daemon could then freeze the console");
return 1;
}
+107
View File
@@ -0,0 +1,107 @@
/* The launcher's log and its way of telling the user that a start failed. */
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#include <ps5/kernel.h>
#include "report.h"
#define DATA_DIR "/data/tailscale"
/* The log is started afresh once it has grown past this. */
#define LOG_MAX_SIZE (64 * 1024)
typedef struct {
char unused[45];
char message[3075];
} notify_request_t;
int sceKernelSendNotificationRequest(int, notify_request_t *, size_t, int);
static int
log_open(void) {
struct stat st;
int flags = O_WRONLY | O_CREAT | O_APPEND;
mkdir(DATA_DIR, 0755);
if (!stat(LAUNCHER_LOG, &st) && st.st_size > LOG_MAX_SIZE) {
flags |= O_TRUNC;
}
return open(LAUNCHER_LOG, flags, 0644);
}
static void
log_line(const char *line) {
char stamp[32] = "";
time_t now = time(0);
struct tm tm;
int fd = log_open();
if (fd < 0) {
return;
}
if (gmtime_r(&now, &tm)) {
strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S UTC ", &tm);
}
write(fd, stamp, strlen(stamp));
write(fd, line, strlen(line));
write(fd, "\n", 1);
close(fd);
}
void
report_begin(void) {
char line[128];
unsigned fw = kernel_get_fw_version();
snprintf(line, sizeof(line), "launcher: starting, firmware %x.%02x, pid %d", fw >> 24, (fw >> 16) & 0xff,
(int)getpid());
log_line(line);
}
void
report_log(const char *fmt, ...) {
char line[512];
va_list ap;
va_start(ap, fmt);
vsnprintf(line, sizeof(line), fmt, ap);
va_end(ap);
fprintf(stderr, "%s\n", line);
log_line(line);
}
void
report_fail(const char *fmt, ...) {
static notify_request_t req;
char line[512];
va_list ap;
va_start(ap, fmt);
vsnprintf(line, sizeof(line), fmt, ap);
va_end(ap);
fprintf(stderr, "%s\n", line);
log_line(line);
memset(&req, 0, sizeof(req));
snprintf(req.message, sizeof(req.message), "Tailscale did not start:\n%s\nDetails: " LAUNCHER_LOG, line);
sceKernelSendNotificationRequest(0, &req, sizeof(req), 0);
}
void
report_capture_stderr(void) {
int fd = log_open();
if (fd < 0) {
return;
}
fflush(stderr);
dup2(fd, 2);
close(fd);
}
+20
View File
@@ -0,0 +1,20 @@
#pragma once
/* Where the launcher records what it did. A payload manager does not show
* what a payload prints, so this file is how a start that went wrong can be
* looked into afterwards. */
#define LAUNCHER_LOG "/data/tailscale/launcher.log"
/* Starts a new entry in the launcher log. */
void report_begin(void);
/* Writes a line to the launcher log and to whoever sent the payload. */
void report_log(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
/* Like report_log, and also tells the user on screen that Tailscale did not
* start. */
void report_fail(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
/* Points stderr at the launcher log, so that whatever the Go runtime prints
* if it dies before the daemon has opened its own log ends up there. */
void report_capture_stderr(void);
+3 -1
View File
@@ -7,6 +7,7 @@ param(
[string]$Package = '.',
[string]$Tags = '',
[string]$Version = '', # sets main.version in the Go program
[string[]]$Set = @(), # extra Go variables, e.g. -Set main.releasesAPI=http://127.0.0.1:18099/latest.json
[string]$MaxProcs = '', # GOMAXPROCS for the Go program (launcher default: 4)
[string]$GoDebug = '', # GODEBUG value baked into the launcher
[int]$Watchdog = 0, # test builds: kill the process after this many seconds
@@ -28,6 +29,7 @@ $elf = Join-Path $out "$Name.elf"
$ldflags = @()
if (-not $KeepSymbols) { $ldflags += '-s', '-w' }
if ($Version) { $ldflags += "-X main.version=$Version" }
foreach ($s in $Set) { $ldflags += "-X $s" }
$goArgs = @('build', '-buildmode=pie', '-trimpath', "-ldflags=$($ldflags -join ' ')", '-o', $bin)
if ($Tags) { $goArgs += "-tags=$Tags" }
$goArgs += $Package
@@ -54,7 +56,7 @@ if ($HomeIcon) {
$ccArgs += "-DICON_HELPER=`"$($helper -replace '\\', '/')`""
}
$ccArgs += @('-o', $elf, (Join-Path $DevRoot 'launcher\main.c'), (Join-Path $DevRoot 'launcher\goload.c'),
(Join-Path $DevRoot 'launcher\homeicon.c'))
(Join-Path $DevRoot 'launcher\homeicon.c'), (Join-Path $DevRoot 'launcher\report.c'))
Invoke-PS5CC @ccArgs
Write-Host ("built {0} ({1:N1} MB)" -f $elf, ((Get-Item $elf).Length / 1MB))
+55
View File
@@ -0,0 +1,55 @@
# Build the files of a release into out\release-<version>:
# tailscale-<version>.elf the payload
# tailscale-<version>.elf.sig its signature, which the status page's "Install" checks
# SHA256SUMS.txt
#
# .\tools\make-release.ps1 -Version 1.2.3
#
# Needs the release signing key on this machine (see docs/BUILDING.md).
param(
[Parameter(Mandatory = $true)][string]$Version,
# Also write the payload and its signature under the plain names
# tailscale.elf and tailscale.elf.sig, which is what the Install button of
# 0.6.0 looks for. Attach them as well to let 0.6.0 install this release.
[switch]$PlainName
)
$ErrorActionPreference = 'Stop'
. (Join-Path $PSScriptRoot 'env.ps1')
if ($Version -notmatch '^\d+\.\d+\.\d+$') { throw "version must look like 1.2.3, not '$Version'" }
& (Join-Path $PSScriptRoot 'build-payload.ps1') -GoDir tsd -Name tailscale -Version $Version -HomeIcon
$rel = Join-Path $DevRoot "out\release-$Version"
New-Item -ItemType Directory -Force $rel | Out-Null
$name = "tailscale-$Version.elf" # the name the status page's Install looks for
$elf = Join-Path $rel $name
Copy-Item (Join-Path $DevRoot 'out\tailscale.elf') $elf -Force
Push-Location (Join-Path $DevRoot 'tsd')
try {
go run ./cmd/signrelease sign -version $Version -file $elf
if ($LASTEXITCODE -ne 0) { throw 'signing failed' }
go run ./cmd/signrelease verify -file $elf
if ($LASTEXITCODE -ne 0) { throw 'the signature does not verify' }
# The payload must carry the public half of the key it was signed with,
# or consoles running it could never install the release after it.
$pub = go run ./cmd/signrelease pubkey
if (-not (Select-String -Path 'selfupdate.go' -SimpleMatch $pub -Quiet)) {
throw "tsd\selfupdate.go does not have this machine's public key ($pub) as updatePublicKey"
}
} finally { Pop-Location }
$hash = (Get-FileHash $elf -Algorithm SHA256).Hash.ToLower()
$sums = "$hash $name`n"
if ($PlainName) {
# The same bytes, so the same signature is valid for both.
Copy-Item $elf (Join-Path $rel 'tailscale.elf') -Force
Copy-Item "$elf.sig" (Join-Path $rel 'tailscale.elf.sig') -Force
$sums += "$hash tailscale.elf`n"
}
[IO.File]::WriteAllText((Join-Path $rel 'SHA256SUMS.txt'), $sums)
Get-ChildItem $rel | Select-Object Name, Length | Format-Table -AutoSize
Write-Host "release files are in $rel"
+142
View File
@@ -0,0 +1,142 @@
package main
import (
"context"
"net"
"net/netip"
"sync"
"time"
"tailscale.com/tailcfg"
)
// Who on the tailnet may reach the console's services.
//
// Tailscale's access rules decide which devices can send to this node at
// all. On top of that the console can be limited to its owner's devices,
// because what it exposes (the payload loader above all) is more than most
// tailnets' rules were written with in mind, and a device that someone else
// shared into the tailnet is governed by rules the owner may not have looked
// at since.
const (
accessAll = "all" // every device the tailnet's access rules allow
accessOwn = "own" // only devices of the user this console is logged in as
)
// identity is what the access check needs to know about a node.
type identity struct {
User tailcfg.UserID
Tagged bool
DNSName string
}
// ownDevice reports whether peer belongs to the same user as self. A tagged
// node has no user: if the console itself is tagged, every device of its own
// tailnet counts, and a tagged peer never counts otherwise. suffix is the
// tailnet's MagicDNS suffix; a device from another tailnet never counts.
func ownDevice(self, peer identity, suffix string) bool {
if peer.DNSName != "" && suffix != "" && !hasDNSSuffix(peer.DNSName, suffix) {
return false
}
if self.Tagged {
return true
}
return !peer.Tagged && peer.User != 0 && peer.User == self.User
}
// accessCache remembers recent decisions, so that a busy port does not ask
// Tailscale about the same device for every connection.
type accessCache struct {
mu sync.Mutex
entries map[netip.Addr]accessEntry
}
type accessEntry struct {
allowed bool
at time.Time
}
const accessCacheTime = time.Minute
func (c *accessCache) get(addr netip.Addr) (allowed, ok bool) {
c.mu.Lock()
defer c.mu.Unlock()
e, ok := c.entries[addr]
if !ok || time.Since(e.at) > accessCacheTime {
return false, false
}
return e.allowed, true
}
func (c *accessCache) put(addr netip.Addr, allowed bool) {
c.mu.Lock()
defer c.mu.Unlock()
if c.entries == nil || len(c.entries) > 1024 {
c.entries = map[netip.Addr]accessEntry{}
}
c.entries[addr] = accessEntry{allowed: allowed, at: time.Now()}
}
func (c *accessCache) clear() {
c.mu.Lock()
defer c.mu.Unlock()
c.entries = nil
}
// allowedFrom reports whether the tailnet device at src may use the
// console's services under the current setting.
func (d *daemon) allowedFrom(src netip.Addr) bool {
d.mu.Lock()
mode := d.cfg.AllowFrom
d.mu.Unlock()
if mode != accessOwn {
return true
}
src = src.Unmap()
if allowed, ok := d.access.get(src); ok {
return allowed
}
allowed, who := d.lookupOwnDevice(src)
d.access.put(src, allowed)
if !allowed {
d.logf("refused %s (%s): only this console's owner's devices may connect", src, who)
}
return allowed
}
// lookupOwnDevice asks Tailscale who src is. Anything that cannot be
// established counts as not allowed.
func (d *daemon) lookupOwnDevice(src netip.Addr) (allowed bool, who string) {
if d.lc == nil {
return false, "unknown"
}
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
st, err := d.lc.StatusWithoutPeers(ctx)
if err != nil || st.Self == nil {
return false, "unknown"
}
// WhoIs wants an address with a port; the port plays no part for a
// tailnet address.
res, err := d.lc.WhoIs(ctx, netip.AddrPortFrom(src, 1).String())
if err != nil || res.Node == nil {
return false, "unknown"
}
who = res.Node.Name
if res.UserProfile != nil && res.UserProfile.LoginName != "" {
who += ", " + res.UserProfile.LoginName
}
self := identity{User: st.Self.UserID, Tagged: st.Self.IsTagged()}
peer := identity{User: res.Node.User, Tagged: res.Node.IsTagged(), DNSName: res.Node.Name}
return ownDevice(self, peer, st.MagicDNSSuffix), who
}
// allowedFromAddr is allowedFrom for the address of a datagram.
func (d *daemon) allowedFromAddr(from net.Addr) bool {
ap, err := netip.ParseAddrPort(from.String())
if err != nil {
return false
}
return d.allowedFrom(ap.Addr())
}
+151
View File
@@ -0,0 +1,151 @@
package main
import (
"context"
"net"
"net/netip"
"testing"
"time"
)
func TestOwnDevice(t *testing.T) {
const suffix = "tail1234.ts.net"
me := identity{User: 7}
for _, tt := range []struct {
name string
self identity
peer identity
want bool
}{
{"same user", me, identity{User: 7, DNSName: "pc.tail1234.ts.net."}, true},
{"another user of the tailnet", me, identity{User: 8, DNSName: "pc.tail1234.ts.net."}, false},
{"tagged device of the tailnet", me, identity{User: 7, Tagged: true, DNSName: "srv.tail1234.ts.net."}, false},
{"shared in from another tailnet", me, identity{User: 9, DNSName: "pc.other.ts.net."}, false},
{"another tailnet claiming the same user", me, identity{User: 7, DNSName: "pc.other.ts.net."}, false},
{"unknown user", me, identity{DNSName: "pc.tail1234.ts.net."}, false},
{"tagged console, device of its tailnet", identity{Tagged: true}, identity{User: 8, DNSName: "pc.tail1234.ts.net."}, true},
{"tagged console, shared device", identity{Tagged: true}, identity{User: 8, DNSName: "pc.other.ts.net."}, false},
} {
if got := ownDevice(tt.self, tt.peer, suffix); got != tt.want {
t.Errorf("%s: got %v, want %v", tt.name, got, tt.want)
}
}
}
func TestAccessCache(t *testing.T) {
var c accessCache
a := netip.MustParseAddr("100.64.0.2")
if _, ok := c.get(a); ok {
t.Fatal("an empty cache had an answer")
}
c.put(a, true)
if allowed, ok := c.get(a); !ok || !allowed {
t.Fatalf("got %v, %v", allowed, ok)
}
c.clear()
if _, ok := c.get(a); ok {
t.Fatal("the cache kept its answer after clear")
}
}
// With the default setting nothing is asked and everything is allowed.
func TestAllowedFromDefault(t *testing.T) {
d := &daemon{cfg: defaultConfig(), logf: t.Logf}
if !d.allowedFrom(netip.MustParseAddr("100.64.0.9")) {
t.Error("the default setting turned a device away")
}
// Limited to own devices, a device that cannot be identified is refused.
d.cfg.AllowFrom = accessOwn
if d.allowedFrom(netip.MustParseAddr("100.64.0.9")) {
t.Error("an unidentified device was let in")
}
}
func TestKeyWarnStage(t *testing.T) {
now := time.Date(2026, 10, 5, 12, 0, 0, 0, time.UTC)
day := 24 * time.Hour
for _, tt := range []struct {
left time.Duration
stage int
days int
}{
{90 * day, -1, 90},
{14*day + time.Hour, -1, 14},
{14 * day, 0, 14},
{5 * day, 0, 5},
{3 * day, 1, 3},
{36 * time.Hour, 1, 1},
{20 * time.Hour, 2, 0},
{-time.Hour, 2, -1},
} {
expiry := now.Add(tt.left)
if got := keyWarnStage(now, expiry); got != tt.stage {
t.Errorf("%v left: stage %d, want %d", tt.left, got, tt.stage)
}
if got := daysLeft(now, expiry); got != tt.days {
t.Errorf("%v left: %d days, want %d", tt.left, got, tt.days)
}
}
if plural(1, "day") != "1 day" || plural(3, "day") != "3 days" {
t.Error("plural")
}
}
// A relay with an allow function serves the clients it accepts and stays
// silent towards the ones it turns down.
func TestUDPRelayAllow(t *testing.T) {
echo, err := net.ListenPacket("udp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer echo.Close()
go func() {
buf := make([]byte, 1500)
for {
n, from, err := echo.ReadFrom(buf)
if err != nil {
return
}
echo.WriteTo(buf[:n], from)
}
}()
for _, allow := range []bool{true, false} {
var relayAddr net.Addr
relay, err := startUDPRelay(udpRelayConfig{
name: "test",
listen: func() (net.PacketConn, error) {
pc, err := net.ListenPacket("udp", "127.0.0.1:0")
if err == nil {
relayAddr = pc.LocalAddr()
}
return pc, err
},
dial: func(ctx context.Context) (net.Conn, error) {
var d net.Dialer
return d.DialContext(ctx, "udp", echo.LocalAddr().String())
},
allow: func(net.Addr) bool { return allow },
logf: t.Logf,
})
if err != nil {
t.Fatal(err)
}
c, err := net.Dial("udp", relayAddr.String())
if err != nil {
t.Fatal(err)
}
c.Write([]byte("ping"))
c.SetReadDeadline(time.Now().Add(700 * time.Millisecond))
buf := make([]byte, 16)
n, err := c.Read(buf)
if allow && (err != nil || string(buf[:n]) != "ping") {
t.Errorf("allowed client: got %q, %v", buf[:n], err)
}
if !allow && err == nil {
t.Errorf("refused client got a reply: %q", buf[:n])
}
c.Close()
relay.stop()
}
}
+385
View File
@@ -0,0 +1,385 @@
// Command signrelease manages the release signing key and signs payloads.
//
// go run ./cmd/signrelease keygen create the key (once)
// go run ./cmd/signrelease pubkey print the public key
// go run ./cmd/signrelease sign -version 1.2.3 -file tailscale.elf
// go run ./cmd/signrelease verify -file tailscale.elf
// go run ./cmd/signrelease backup -out FILE passphrase-protected copy
// go run ./cmd/signrelease restore -in FILE bring a backup onto this machine
//
// The key lives outside the repository, by default in .ps5-tailscale in the
// user's home directory; PS5TS_SIGNING_KEY names another file. It is kept
// unencrypted there so that releases can be made without typing anything.
// A backup is encrypted with a passphrase and is meant for somewhere else: a
// NAS, a USB stick, a password manager.
package main
import (
"crypto/aes"
"crypto/cipher"
"crypto/ed25519"
"crypto/pbkdf2"
"crypto/rand"
"crypto/sha256"
"encoding/base64"
"encoding/hex"
"errors"
"flag"
"fmt"
"io"
"os"
"path/filepath"
"strconv"
"golang.org/x/term"
"ps5tailscale/relsig"
)
const (
keyHeading = "ps5-tailscale release signing key. Keep this file private."
backupHeading = "ps5-tailscale release signing key, encrypted backup."
kdfRounds = 600_000
)
func main() {
if len(os.Args) < 2 {
usage()
}
var err error
switch cmd, args := os.Args[1], os.Args[2:]; cmd {
case "keygen":
err = keygen(args)
case "pubkey":
err = pubkey(args)
case "sign":
err = sign(args)
case "verify":
err = verify(args)
case "backup":
err = backup(args)
case "restore":
err = restore(args)
default:
usage()
}
if err != nil {
fmt.Fprintln(os.Stderr, "signrelease:", err)
os.Exit(1)
}
}
func usage() {
fmt.Fprintln(os.Stderr, "usage: signrelease keygen | pubkey | sign -version V -file F | verify -file F | backup -out F | restore -in F")
os.Exit(2)
}
// keyPath is where the signing key is kept on this machine.
func keyPath() (string, error) {
if p := os.Getenv("PS5TS_SIGNING_KEY"); p != "" {
return p, nil
}
// The home directory itself, not the configuration directory: on Windows
// that is AppData, which packaged apps see a private copy of, so a key
// created from inside one would be invisible everywhere else.
dir, err := os.UserHomeDir()
if err != nil {
return "", err
}
return filepath.Join(dir, ".ps5-tailscale", "release-signing.key"), nil
}
func b64(b []byte) string { return base64.StdEncoding.EncodeToString(b) }
func writeKey(path string, key ed25519.PrivateKey) error {
if _, err := os.Stat(path); err == nil {
return fmt.Errorf("%s already exists; refusing to overwrite a signing key", path)
}
if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil {
return err
}
text := fmt.Sprintf("%s\nprivate: %s\npublic: %s\n", keyHeading, b64(key.Seed()), b64(key.Public().(ed25519.PublicKey)))
return os.WriteFile(path, []byte(text), 0o600)
}
func loadKey() (ed25519.PrivateKey, string, error) {
path, err := keyPath()
if err != nil {
return nil, "", err
}
b, err := os.ReadFile(path)
if err != nil {
return nil, path, fmt.Errorf("no signing key (%w); run keygen, or restore a backup", err)
}
fields, err := relsig.ParseFields(b)
if err != nil {
return nil, path, err
}
seed, err := base64.StdEncoding.DecodeString(fields["private"])
if err != nil || len(seed) != ed25519.SeedSize {
return nil, path, fmt.Errorf("%s is not a signing key", path)
}
return ed25519.NewKeyFromSeed(seed), path, nil
}
func keygen(args []string) error {
path, err := keyPath()
if err != nil {
return err
}
_, key, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
return err
}
if err := writeKey(path, key); err != nil {
return err
}
fmt.Printf("signing key written to %s\npublic key: %s\n", path, b64(key.Public().(ed25519.PublicKey)))
fmt.Println("Make a backup now: signrelease backup -out <file>")
return nil
}
func pubkey(args []string) error {
key, _, err := loadKey()
if err != nil {
return err
}
fmt.Println(b64(key.Public().(ed25519.PublicKey)))
return nil
}
func fileSum(path string) (string, error) {
f, err := os.Open(path)
if err != nil {
return "", err
}
defer f.Close()
h := sha256.New()
if _, err := io.Copy(h, f); err != nil {
return "", err
}
return hex.EncodeToString(h.Sum(nil)), nil
}
func sign(args []string) error {
fs := flag.NewFlagSet("sign", flag.ExitOnError)
version := fs.String("version", "", "the release's version, e.g. 1.2.3")
file := fs.String("file", "", "the payload to sign")
out := fs.String("out", "", "the signature file (default: the payload's name plus "+relsig.FileSuffix+")")
fs.Parse(args)
if *version == "" || *file == "" {
return errors.New("sign needs -version and -file")
}
key, _, err := loadKey()
if err != nil {
return err
}
sum, err := fileSum(*file)
if err != nil {
return err
}
sig, err := relsig.Sign(key, *version, sum)
if err != nil {
return err
}
if *out == "" {
*out = *file + relsig.FileSuffix
}
if err := os.WriteFile(*out, sig.Marshal(), 0o644); err != nil {
return err
}
fmt.Printf("signed %s as version %s -> %s\n", *file, sig.Version, *out)
return nil
}
func verify(args []string) error {
fs := flag.NewFlagSet("verify", flag.ExitOnError)
file := fs.String("file", "", "the payload")
sigFile := fs.String("sig", "", "the signature file (default: the payload's name plus "+relsig.FileSuffix+")")
pub := fs.String("pubkey", "", "the public key to check against (default: this machine's signing key)")
fs.Parse(args)
if *file == "" {
return errors.New("verify needs -file")
}
if *sigFile == "" {
*sigFile = *file + relsig.FileSuffix
}
var public ed25519.PublicKey
if *pub != "" {
p, err := relsig.ParsePublicKey(*pub)
if err != nil {
return err
}
public = p
} else {
key, _, err := loadKey()
if err != nil {
return err
}
public = key.Public().(ed25519.PublicKey)
}
b, err := os.ReadFile(*sigFile)
if err != nil {
return err
}
sig, err := relsig.Parse(b)
if err != nil {
return err
}
sum, err := fileSum(*file)
if err != nil {
return err
}
if sum != sig.SHA256 {
return errors.New("the payload does not match the signature file")
}
if !sig.Verify(public) {
return errors.New("the signature is not valid for this key")
}
fmt.Printf("ok: version %s, sha256 %s\n", sig.Version, sig.SHA256)
return nil
}
// readPassphrase asks for a passphrase without showing it.
func readPassphrase(prompt string) ([]byte, error) {
fmt.Fprint(os.Stderr, prompt)
fd := int(os.Stdin.Fd())
if !term.IsTerminal(fd) {
return nil, errors.New("a passphrase has to be typed at a terminal")
}
p, err := term.ReadPassword(fd)
fmt.Fprintln(os.Stderr)
return p, err
}
func sealer(passphrase, salt []byte) (cipher.AEAD, error) {
k, err := pbkdf2.Key(sha256.New, string(passphrase), salt, kdfRounds, 32)
if err != nil {
return nil, err
}
block, err := aes.NewCipher(k)
if err != nil {
return nil, err
}
return cipher.NewGCM(block)
}
func backup(args []string) error {
fs := flag.NewFlagSet("backup", flag.ExitOnError)
out := fs.String("out", "", "where to write the encrypted backup")
fs.Parse(args)
if *out == "" {
return errors.New("backup needs -out")
}
if _, err := os.Stat(*out); err == nil {
return fmt.Errorf("%s already exists", *out)
}
key, _, err := loadKey()
if err != nil {
return err
}
p1, err := readPassphrase("Passphrase for the backup: ")
if err != nil {
return err
}
if len(p1) < 8 {
return errors.New("use at least 8 characters")
}
p2, err := readPassphrase("Again: ")
if err != nil {
return err
}
if string(p1) != string(p2) {
return errors.New("the passphrases differ")
}
text, err := sealBackup(key, p1)
if err != nil {
return err
}
if err := os.WriteFile(*out, []byte(text), 0o600); err != nil {
return err
}
fmt.Printf("encrypted backup written to %s\nWithout the passphrase it cannot be restored; keep the passphrase somewhere else.\n", *out)
return nil
}
func restore(args []string) error {
fs := flag.NewFlagSet("restore", flag.ExitOnError)
in := fs.String("in", "", "the encrypted backup")
fs.Parse(args)
if *in == "" {
return errors.New("restore needs -in")
}
path, err := keyPath()
if err != nil {
return err
}
if _, err := os.Stat(path); err == nil {
return fmt.Errorf("%s already exists; refusing to overwrite a signing key", path)
}
b, err := os.ReadFile(*in)
if err != nil {
return err
}
pass, err := readPassphrase("Passphrase of the backup: ")
if err != nil {
return err
}
key, err := openBackup(b, pass)
if err != nil {
return err
}
public := key.Public().(ed25519.PublicKey)
if err := writeKey(path, key); err != nil {
return err
}
fmt.Printf("signing key restored to %s\npublic key: %s\n", path, b64(public))
return nil
}
// sealBackup encrypts the key with a passphrase.
func sealBackup(key ed25519.PrivateKey, passphrase []byte) (string, error) {
salt, nonce := make([]byte, 16), make([]byte, 12)
rand.Read(salt)
rand.Read(nonce)
aead, err := sealer(passphrase, salt)
if err != nil {
return "", err
}
public := key.Public().(ed25519.PublicKey)
// The public key is bound to the ciphertext, so a backup cannot be
// relabelled as another key's.
data := aead.Seal(nil, nonce, key.Seed(), public)
return fmt.Sprintf("%s\nRestore with: signrelease restore -in <this file>\nkdf: pbkdf2-sha256\nrounds: %d\nsalt: %s\nnonce: %s\ndata: %s\npublic: %s\n",
backupHeading, kdfRounds, b64(salt), b64(nonce), b64(data), b64(public)), nil
}
// openBackup decrypts a backup.
func openBackup(b, passphrase []byte) (ed25519.PrivateKey, error) {
fields, err := relsig.ParseFields(b)
if err != nil {
return nil, err
}
dec := func(name string) []byte {
v, _ := base64.StdEncoding.DecodeString(fields[name])
return v
}
rounds, _ := strconv.Atoi(fields["rounds"])
salt, nonce, data, public := dec("salt"), dec("nonce"), dec("data"), dec("public")
if fields["kdf"] != "pbkdf2-sha256" || rounds != kdfRounds || len(salt) == 0 || len(nonce) != 12 || len(public) != ed25519.PublicKeySize {
return nil, errors.New("not a backup this version understands")
}
aead, err := sealer(passphrase, salt)
if err != nil {
return nil, err
}
seed, err := aead.Open(nil, nonce, data, public)
if err != nil || len(seed) != ed25519.SeedSize {
return nil, errors.New("wrong passphrase, or the backup is damaged")
}
key := ed25519.NewKeyFromSeed(seed)
if !key.Public().(ed25519.PublicKey).Equal(ed25519.PublicKey(public)) {
return nil, errors.New("the backup is inconsistent")
}
return key, nil
}
+31
View File
@@ -0,0 +1,31 @@
package main
import (
"crypto/ed25519"
"strings"
"testing"
)
func TestBackupRoundTrip(t *testing.T) {
_, key, err := ed25519.GenerateKey(nil)
if err != nil {
t.Fatal(err)
}
text, err := sealBackup(key, []byte("correct horse"))
if err != nil {
t.Fatal(err)
}
if strings.Contains(text, b64(key.Seed())) {
t.Fatal("the backup contains the key in the clear")
}
got, err := openBackup([]byte(text), []byte("correct horse"))
if err != nil || !got.Equal(key) {
t.Fatalf("restore: %v", err)
}
if _, err := openBackup([]byte(text), []byte("wrong")); err == nil {
t.Error("a wrong passphrase was accepted")
}
if _, err := openBackup([]byte("nonsense"), []byte("x")); err == nil {
t.Error("nonsense was accepted as a backup")
}
}
+21
View File
@@ -42,6 +42,20 @@ type config struct {
UDPPorts []uint16 `json:"udpPorts"`
// BlockedPorts lists local TCP ports that are never exposed to the tailnet.
BlockedPorts []uint16 `json:"blockedPorts,omitempty"`
// AllowFrom limits which tailnet devices may reach the console's services:
// empty for every device the tailnet's access rules allow, "own" for only
// the devices of the user this console is logged in as.
AllowFrom string `json:"allowFrom,omitempty"`
// PayloadPath names the copy of the payload that is started at boot, for
// example in a payload manager's folder. An update installed from the
// status page replaces that file too. Empty means there is none to keep
// up to date.
PayloadPath string `json:"payloadPath,omitempty"`
// ReceiveDir is where files sent to the console with Taildrop end up.
ReceiveDir string `json:"receiveDir"`
// Wake lists devices on the console's home network that the status page
// can wake with a Wake-on-LAN packet.
Wake []wakeTarget `json:"wake,omitempty"`
// Priority is how the daemon competes for CPU time: "low" (the default)
// never takes time from a game, "high" shares the CPU with games on
// equal terms, which can make Remote Play smoother. Applied at start.
@@ -57,6 +71,7 @@ func defaultConfig() config {
return config{
Hostname: "ps5",
WebAddr: ":8090",
ReceiveDir: defaultReceiveDir,
UDPPorts: slices.Clone(remotePlayUDPPorts),
CheckUpdates: true,
}
@@ -96,6 +111,12 @@ func (cfg *config) normalize() {
}
cfg.SunshineHost = ""
}
if cfg.ReceiveDir == "" {
cfg.ReceiveDir = defaultReceiveDir
}
if cfg.AllowFrom != accessOwn {
cfg.AllowFrom = ""
}
if cfg.Priority != priorityHigh {
cfg.Priority = ""
}
+200
View File
@@ -0,0 +1,200 @@
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"regexp"
"runtime"
"slices"
"strings"
"time"
)
// The diagnostics file: everything someone helping with a problem needs, in
// one download, so that a bug report does not depend on getting files off
// the console by hand.
//
// It goes on the internet when it is attached to a report, so what can be
// left out without making it useless is left out or blanked: the password
// hash, auth keys, login links, e-mail addresses, the tailnet's name and
// public IP addresses. Device names and tailnet addresses stay; without them
// the logs cannot be followed.
const (
diagLauncherTail = 64 << 10
diagMainTail = 256 << 10
diagDebugTail = 512 << 10
)
var (
reEmail = regexp.MustCompile(`[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}`)
reTailnet = regexp.MustCompile(`\b([A-Za-z0-9-]+)\.[A-Za-z0-9-]+\.ts\.net\b`)
// The tailnet's name on its own, as it appears in DNS settings.
reTailnetBare = regexp.MustCompile(`\b[A-Za-z0-9-]+\.ts\.net\b`)
reLoginURL = regexp.MustCompile(`https://login\.tailscale\.com/a/[A-Za-z0-9]+`)
reAuthKey = regexp.MustCompile(`tskey-[A-Za-z0-9-]+`)
reIPv4 = regexp.MustCompile(`\b(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\b`)
reFirmware = regexp.MustCompile(`firmware (\d+\.\d+)`)
)
// scrub blanks what should not be published. It keeps the shape of the
// text, so the logs still read as logs.
func scrub(b []byte) []byte {
b = reLoginURL.ReplaceAll(b, []byte("https://login.tailscale.com/a/<removed>"))
b = reAuthKey.ReplaceAll(b, []byte("tskey-<removed>"))
b = reEmail.ReplaceAll(b, []byte("<email>"))
b = reTailnet.ReplaceAll(b, []byte("$1.<tailnet>.ts.net"))
b = reTailnetBare.ReplaceAll(b, []byte("<tailnet>.ts.net"))
return reIPv4.ReplaceAllFunc(b, func(ip []byte) []byte {
if publicIPv4(string(ip)) {
return []byte("<public-ip>")
}
return ip
})
}
// publicIPv4 reports whether s is an address on the internet, as opposed to
// a private, tailnet, loopback or otherwise special one. Text that only
// looks like an address (a version number, say) is left alone.
func publicIPv4(s string) bool {
var a, b, c, d int
if n, _ := fmt.Sscanf(s, "%d.%d.%d.%d", &a, &b, &c, &d); n != 4 || a > 255 || b > 255 || c > 255 || d > 255 {
return false
}
switch {
case a == 0, a == 10, a == 127, a >= 224:
return false
case a == 100 && b >= 64 && b <= 127: // tailnet addresses
return false
case a == 169 && b == 254:
return false
case a == 172 && b >= 16 && b <= 31:
return false
case a == 192 && b == 168:
return false
case a == 192 && b == 0 && c == 2:
return false
}
// A well-known public resolver says nothing about the user.
switch s {
case "1.1.1.1", "8.8.8.8", "9.9.9.9":
return false
}
return true
}
func fileTail(path string, max int64) []byte {
f, err := os.Open(path)
if err != nil {
return []byte("(" + err.Error() + ")\n")
}
defer f.Close()
if fi, err := f.Stat(); err == nil && fi.Size() > max {
f.Seek(fi.Size()-max, io.SeekStart)
}
b, _ := io.ReadAll(onlyReader{f})
return b
}
// diagnostics assembles the file.
func (d *daemon) diagnostics(r *http.Request) []byte {
var out bytes.Buffer
section := func(title string) { fmt.Fprintf(&out, "\n===== %s =====\n", title) }
launcher := fileTail(filepath.Join(dataDir, "launcher.log"), diagLauncherTail)
firmware := "unknown"
if m := reFirmware.FindAllSubmatch(launcher, -1); len(m) > 0 {
firmware = string(m[len(m)-1][1])
}
d.mu.Lock()
cfg := d.cfg
state, lastErr := d.state, d.lastErr
latest := d.latest.Version
d.mu.Unlock()
fmt.Fprintf(&out, "ps5-tailscale diagnostics\n")
fmt.Fprintf(&out, "Please read this file before posting it. E-mail addresses, the tailnet's name, public IP\n")
fmt.Fprintf(&out, "addresses, keys and the password have been removed; device names and tailnet addresses have not.\n\n")
fmt.Fprintf(&out, "version: %s (%s/%s)\n", version, runtime.GOOS, runtime.GOARCH)
fmt.Fprintf(&out, "firmware: %s\n", firmware)
fmt.Fprintf(&out, "created: %s\n", time.Now().UTC().Format("2006-01-02 15:04:05 UTC"))
fmt.Fprintf(&out, "running for: %s\n", time.Since(d.started).Round(time.Second))
fmt.Fprintf(&out, "state: %s\n", state)
if lastErr != "" {
fmt.Fprintf(&out, "last error: %s\n", lastErr)
}
if latest != "" {
fmt.Fprintf(&out, "latest known: %s\n", latest)
}
if d.dns != nil {
fmt.Fprintf(&out, "name lookups: %s\n", d.dns.describe())
}
if d.udp != nil {
fmt.Fprintf(&out, "UDP ports: %v\n", d.udp.activePorts())
}
if d.fwd != nil {
fmt.Fprintf(&out, "forwards: %d active\n", len(d.fwd.rules()))
}
if d.lc != nil {
if st, err := d.status(r.Context()); err == nil {
section("tailscale")
fmt.Fprintf(&out, "backend state: %s\n", st.BackendState)
for _, h := range st.Health {
fmt.Fprintf(&out, "health: %s\n", h)
}
if st.Self != nil {
fmt.Fprintf(&out, "self: %s, addresses %v, relay %q, key expiry %v\n", st.Self.DNSName, st.Self.TailscaleIPs, st.Self.Relay, st.Self.KeyExpiry)
}
peers, vpn := peersFromStatus(st, false)
fmt.Fprintf(&out, "peers: %d, VPN exit servers: %d\n", len(peers), vpn.Total)
for _, p := range peers {
fmt.Fprintf(&out, " %-24s %-16s %-8s online=%-5v %s %s\n", p.Name, p.IP, p.OS, p.Online, p.Kind, strings.TrimSpace(p.Conn+" "+p.Via))
}
} else {
section("tailscale")
fmt.Fprintf(&out, "status: %v\n", err)
}
}
section("settings (password and auth key removed)")
if cfg.PasswordHash != "" {
cfg.PasswordHash = "(set)"
}
if cfg.AuthKey != "" {
cfg.AuthKey = "(set)"
}
// cfg is a copy, but its slices are the daemon's own: copy before
// blanking.
cfg.Wake = slices.Clone(cfg.Wake)
for i := range cfg.Wake {
cfg.Wake[i].MAC = "(set)"
}
if b, err := json.MarshalIndent(cfg, "", " "); err == nil {
out.Write(b)
out.WriteByte('\n')
}
section("launcher.log")
out.Write(launcher)
section("tailscale.log (end)")
out.Write(fileTail(filepath.Join(dataDir, "tailscale.log"), diagMainTail))
section("tailscale-debug.log (end)")
out.Write(fileTail(filepath.Join(dataDir, "tailscale-debug.log"), diagDebugTail))
return scrub(out.Bytes())
}
func (d *daemon) handleDiagnostics(w http.ResponseWriter, r *http.Request) {
name := fmt.Sprintf("ps5-tailscale-diagnostics-%s-%s.txt", version, time.Now().UTC().Format("20060102-150405"))
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.Header().Set("Content-Disposition", `attachment; filename="`+name+`"`)
w.Header().Set("Cache-Control", "no-store")
w.Header().Set("X-Content-Type-Options", "nosniff")
w.Write(d.diagnostics(r))
}
+191
View File
@@ -0,0 +1,191 @@
package main
import (
"context"
"encoding/binary"
"net"
"slices"
"sync"
"time"
"tailscale.com/net/netmon"
)
// Name lookups by the daemon itself: Tailscale's servers, GitHub for the
// update check, whatever goes through the HTTP proxy.
//
// The PS5 has no resolv.conf, so Go asks 127.0.0.1:53. That only works on a
// console that runs a DNS payload, which most jailbreak setups do and some do
// not. Rather than depend on it, the daemon uses the first of these that
// answers: the local DNS payload, the router, a public resolver.
// dnsLocal is where a DNS payload on the console listens. A variable so that
// a test build can pretend there is none.
var dnsLocal = "127.0.0.1:53"
// dnsPublic are used when neither the console nor the router answers.
var dnsPublic = []string{"1.1.1.1:53", "8.8.8.8:53", "9.9.9.9:53"}
const (
dnsRecheckGood = 5 * time.Minute // how long a working server is kept
dnsRecheckBad = 20 * time.Second // how soon to look again when none works
dnsProbeWait = 1200 * time.Millisecond
)
type dnsPicker struct {
logf func(format string, args ...any)
// candidates lists the servers to try, in order of preference.
candidates func() []string
// probe reports whether a server answers queries.
probe func(ctx context.Context, server string) bool
mu sync.Mutex
server string
working bool
checked time.Time
}
func newDNSPicker(logf func(format string, args ...any)) *dnsPicker {
return &dnsPicker{logf: logf, candidates: dnsCandidates, probe: dnsAnswers}
}
// dnsCandidates returns the local DNS payload, the router and the public
// resolvers, in that order.
func dnsCandidates() []string {
list := []string{dnsLocal}
if gw, _, ok := netmon.LikelyHomeRouterIP(); ok && gw.IsValid() {
list = append(list, net.JoinHostPort(gw.String(), "53"))
}
return append(list, dnsPublic...)
}
// pick returns the server to ask. The choice is kept for a while, so the
// candidates are not probed for every lookup.
func (p *dnsPicker) pick(ctx context.Context) string {
p.mu.Lock()
defer p.mu.Unlock()
keep := dnsRecheckBad
if p.working {
keep = dnsRecheckGood
}
if p.server != "" && time.Since(p.checked) < keep {
return p.server
}
candidates := p.candidates()
chosen, working := candidates[0], false
for _, c := range candidates {
if p.probe(ctx, c) {
chosen, working = c, true
break
}
}
if chosen != p.server || working != p.working {
switch {
case !working:
p.logf("DNS: no server answers (tried %v); name lookups will fail until one does", candidates)
case chosen == candidates[0]:
p.logf("DNS: using the console's own DNS at %s", chosen)
default:
p.logf("DNS: nothing answers at %s; using %s instead (in order of preference: %v)", candidates[0], chosen, candidates)
}
}
p.server, p.working, p.checked = chosen, working, time.Now()
return chosen
}
// reset makes the next lookup choose again, for when the network changed.
func (p *dnsPicker) reset() {
p.mu.Lock()
p.checked = time.Time{}
p.mu.Unlock()
}
// dial is the resolver's Dial: whatever address Go wants to ask, the chosen
// server is asked instead.
func (p *dnsPicker) dial(ctx context.Context, network, _ string) (net.Conn, error) {
var d net.Dialer
return d.DialContext(ctx, network, p.pick(ctx))
}
// install makes every name lookup in the process go through the picker.
func (p *dnsPicker) install() {
net.DefaultResolver = &net.Resolver{PreferGo: true, Dial: p.dial}
}
// dnsAnswers asks server for the address of a name that certainly exists
// and reports whether a proper answer came back.
func dnsAnswers(ctx context.Context, server string) bool {
ctx, cancel := context.WithTimeout(ctx, dnsProbeWait)
defer cancel()
var d net.Dialer
c, err := d.DialContext(ctx, "udp", server)
if err != nil {
return false
}
defer c.Close()
c.SetDeadline(time.Now().Add(dnsProbeWait))
query := dnsQuery(uint16(time.Now().UnixNano()), "github.com")
if _, err := c.Write(query); err != nil {
return false
}
buf := make([]byte, 1500)
n, err := c.Read(buf)
if err != nil {
return false
}
return dnsReplyOK(query, buf[:n])
}
// dnsQuery builds a query for the IPv4 address of name.
func dnsQuery(id uint16, name string) []byte {
q := make([]byte, 12, 64)
binary.BigEndian.PutUint16(q[0:], id)
q[2] = 0x01 // recursion desired
binary.BigEndian.PutUint16(q[4:], 1)
start := 0
for i := 0; i <= len(name); i++ {
if i == len(name) || name[i] == '.' {
q = append(q, byte(i-start))
q = append(q, name[start:i]...)
start = i + 1
}
}
return append(q, 0, 0, 1, 0, 1) // root label, type A, class IN
}
// dnsReplyOK reports whether reply is a successful answer to query.
func dnsReplyOK(query, reply []byte) bool {
if len(reply) < 12 || reply[0] != query[0] || reply[1] != query[1] {
return false
}
isResponse := reply[2]&0x80 != 0
rcode := reply[3] & 0x0f
answers := binary.BigEndian.Uint16(reply[6:])
return isResponse && rcode == 0 && answers > 0
}
// describe says in words which server is in use, for the status page. It
// does not probe.
func (p *dnsPicker) describe() string {
p.mu.Lock()
server, working := p.server, p.working
p.mu.Unlock()
if server == "" {
return ""
}
host, _, err := net.SplitHostPort(server)
if err != nil {
host = server
}
if !working {
return "no server answers"
}
switch {
case server == dnsLocal:
return host + " (DNS payload on this console)"
case slices.Contains(dnsPublic, server):
return host + " (public resolver)"
default:
return host + " (router)"
}
}
+136
View File
@@ -0,0 +1,136 @@
package main
import (
"context"
"net"
"strings"
"testing"
"time"
)
func testPicker(t *testing.T, candidates []string, answering map[string]bool) (*dnsPicker, *[]string, *[]string) {
var logs, probed []string
p := &dnsPicker{
logf: func(format string, args ...any) { logs = append(logs, format) },
candidates: func() []string { return candidates },
probe: func(ctx context.Context, server string) bool {
probed = append(probed, server)
return answering[server]
},
}
return p, &logs, &probed
}
func TestDNSPicker(t *testing.T) {
candidates := []string{"127.0.0.1:53", "192.168.1.1:53", "1.1.1.1:53"}
answering := map[string]bool{"127.0.0.1:53": true, "192.168.1.1:53": true, "1.1.1.1:53": true}
p, logs, probed := testPicker(t, candidates, answering)
ctx := context.Background()
// The console's own DNS is preferred, and the choice is kept.
if got := p.pick(ctx); got != "127.0.0.1:53" {
t.Fatalf("picked %s", got)
}
p.pick(ctx)
if len(*probed) != 1 {
t.Errorf("probed %v; the choice should have been kept", *probed)
}
// No DNS payload: the router is used, and that is logged.
answering["127.0.0.1:53"] = false
p.reset()
if got := p.pick(ctx); got != "192.168.1.1:53" {
t.Errorf("without a local DNS: picked %s", got)
}
if last := (*logs)[len(*logs)-1]; !strings.Contains(last, "instead") {
t.Errorf("log: %q", last)
}
// Nor the router: a public resolver.
answering["192.168.1.1:53"] = false
p.reset()
if got := p.pick(ctx); got != "1.1.1.1:53" {
t.Errorf("without local DNS or router: picked %s", got)
}
// Nothing at all: stay with the first, and look again soon.
answering["1.1.1.1:53"] = false
p.reset()
if got := p.pick(ctx); got != "127.0.0.1:53" {
t.Errorf("with nothing answering: picked %s", got)
}
if p.working {
t.Error("the picker thinks it has a working server")
}
before := len(*probed)
p.checked = time.Now().Add(-dnsRecheckBad - time.Second)
answering["127.0.0.1:53"] = true
if got := p.pick(ctx); got != "127.0.0.1:53" || len(*probed) == before || !p.working {
t.Errorf("after the short wait: picked %s, working %v", got, p.working)
}
}
func TestDNSQueryAndReply(t *testing.T) {
q := dnsQuery(0x1234, "github.com")
want := []byte{0x12, 0x34, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 6, 'g', 'i', 't', 'h', 'u', 'b', 3, 'c', 'o', 'm', 0, 0, 1, 0, 1}
if string(q) != string(want) {
t.Fatalf("query = % x", q)
}
reply := func(id0, id1, flags2, flags3 byte, answers byte) []byte {
return []byte{id0, id1, flags2, flags3, 0, 1, 0, answers, 0, 0, 0, 0}
}
for name, tt := range map[string]struct {
r []byte
want bool
}{
"good answer": {reply(0x12, 0x34, 0x81, 0x80, 2), true},
"another query's id": {reply(0x12, 0x35, 0x81, 0x80, 2), false},
"server failure": {reply(0x12, 0x34, 0x81, 0x82, 0), false},
"no such name": {reply(0x12, 0x34, 0x81, 0x83, 0), false},
"no answers": {reply(0x12, 0x34, 0x81, 0x80, 0), false},
"not a response": {reply(0x12, 0x34, 0x01, 0x00, 1), false},
"too short": {[]byte{0x12, 0x34}, false},
} {
if got := dnsReplyOK(q, tt.r); got != tt.want {
t.Errorf("%s: got %v", name, got)
}
}
}
// A real exchange over UDP with a stand-in server, and a port where nothing
// answers.
func TestDNSAnswers(t *testing.T) {
pc, err := net.ListenPacket("udp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer pc.Close()
go func() {
buf := make([]byte, 1500)
for {
n, from, err := pc.ReadFrom(buf)
if err != nil {
return
}
r := append([]byte(nil), buf[:n]...)
r[2], r[3], r[7] = 0x81, 0x80, 1 // response, no error, one answer
pc.WriteTo(r, from)
}
}()
if !dnsAnswers(context.Background(), pc.LocalAddr().String()) {
t.Error("a server that answers was reported as silent")
}
silent, err := net.ListenPacket("udp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer silent.Close()
start := time.Now()
if dnsAnswers(context.Background(), silent.LocalAddr().String()) {
t.Error("a silent server was reported as answering")
}
if time.Since(start) > 3*time.Second {
t.Errorf("the probe took %v", time.Since(start))
}
}
+3
View File
@@ -28,6 +28,9 @@ func (d *daemon) forwardToLocalhost(src, dst netip.AddrPort) (handler func(net.C
// open here must not end up at the console's service.
return nil, false
}
if !d.allowedFrom(src.Addr()) {
return nil, false
}
port := dst.Port()
if port == d.webPort {
// The status page is served on the tailnet connection itself rather
+1 -1
View File
@@ -5,6 +5,7 @@ go 1.27.1
require (
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
golang.org/x/crypto/x509roots/fallback v0.0.0-20260929172509-b39ff6d641ec
golang.org/x/term v0.46.0
tailscale.com v1.104.0
)
@@ -46,7 +47,6 @@ require (
golang.org/x/oauth2 v0.37.0 // indirect
golang.org/x/sync v0.23.0 // indirect
golang.org/x/sys v0.48.0 // indirect
golang.org/x/term v0.46.0 // indirect
golang.org/x/text v0.42.0 // indirect
golang.org/x/time v0.16.0 // indirect
golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
+4 -1
View File
@@ -31,6 +31,8 @@ type udpExposer struct {
logf func(format string, args ...any)
// targetHost is where the console's services are reached.
targetHost string
// allow, if set, decides which senders are served.
allow func(from net.Addr) bool
mu sync.Mutex
addrs []netip.Addr
@@ -71,7 +73,8 @@ func (e *udpExposer) update(addrs []netip.Addr, ports []uint16) {
var d net.Dialer
return d.DialContext(ctx, "udp", target)
},
logf: e.logf,
allow: e.allow,
logf: e.logf,
})
if err != nil {
e.logf("udp %s: %v", listenAddr, err)
+101
View File
@@ -0,0 +1,101 @@
package main
import (
"context"
"fmt"
"time"
)
// A device's Tailscale key expires after a while (180 days unless the
// tailnet says otherwise or expiry is turned off for the device). When that
// happens to a console nobody is looking at, it simply drops off the tailnet.
// The status page shows the date; this warns on screen as it gets close.
// keyWarnDays are the points, in days before the expiry, at which the user
// is told on screen. The status page warns from the first of them on.
var keyWarnDays = []int{14, 3, 1}
// daysLeft is the number of whole days from now until expiry, negative once
// it has passed.
func daysLeft(now, expiry time.Time) int {
d := expiry.Sub(now)
if d < 0 {
return -1
}
return int(d / (24 * time.Hour))
}
// keyWarnStage returns the index of the last warning point that has been
// reached, or -1 if the expiry is still further away than all of them.
func keyWarnStage(now, expiry time.Time) int {
left := expiry.Sub(now)
stage := -1
for i, days := range keyWarnDays {
if left <= time.Duration(days)*24*time.Hour {
stage = i
}
}
return stage
}
// keyExpiry returns when this console's key expires; the zero time if it
// does not expire or is not known.
func (d *daemon) keyExpiry(ctx context.Context) time.Time {
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
st, err := d.lc.StatusWithoutPeers(ctx)
if err != nil || st.Self == nil || st.Self.KeyExpiry == nil {
return time.Time{}
}
return *st.Self.KeyExpiry
}
// watchKeyExpiry tells the user on screen when the key is about to expire:
// once for each warning point reached while this process runs.
func (d *daemon) watchKeyExpiry(ctx context.Context) {
ticker := time.NewTicker(time.Hour)
defer ticker.Stop()
warned := -1
first := time.After(2 * time.Minute)
for {
select {
case <-ctx.Done():
return
case <-first:
case <-ticker.C:
}
d.mu.Lock()
running := d.state == "Running"
d.mu.Unlock()
if !running {
continue
}
expiry := d.keyExpiry(ctx)
if expiry.IsZero() {
warned = -1
continue
}
now := time.Now()
stage := keyWarnStage(now, expiry)
if stage <= warned || !expiry.After(now) {
if stage < warned {
warned = stage // the key was renewed
}
continue
}
warned = stage
left := "in less than a day"
if n := daysLeft(now, expiry); n >= 1 {
left = "in " + plural(n, "day")
}
d.logf("this console's Tailscale key expires %s (%s)", left, expiry.Local().Format("2006-01-02"))
notify("Tailscale: this PS5's key expires %s.\nLog in again or turn off key expiry.\n%s", left, d.webURL())
}
}
func plural(n int, word string) string {
if n == 1 {
return "1 " + word
}
return fmt.Sprintf("%d %ss", n, word)
}
+27 -13
View File
@@ -12,10 +12,7 @@ import (
// startEcho runs a TCP and a UDP echo server on the same port and returns it.
func startEcho(t *testing.T) string {
t.Helper()
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
ln, pc := listenBoth(t)
t.Cleanup(func() { ln.Close() })
go func() {
for {
@@ -26,10 +23,6 @@ func startEcho(t *testing.T) string {
go func() { io.Copy(c, c); c.Close() }()
}
}()
pc, err := net.ListenPacket("udp", ln.Addr().String())
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() { pc.Close() })
go func() {
buf := make([]byte, 65535)
@@ -44,14 +37,35 @@ func startEcho(t *testing.T) string {
return ln.Addr().String()
}
// freePort returns a localhost address nothing listens on.
// listenBoth opens a TCP and a UDP socket on the same localhost port. A port
// the system hands out for TCP is not always available for UDP (Windows
// reserves ranges per protocol), so it tries until both work.
func listenBoth(t *testing.T) (net.Listener, net.PacketConn) {
t.Helper()
var lastErr error
for range 50 {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
pc, err := net.ListenPacket("udp", ln.Addr().String())
if err == nil {
return ln, pc
}
lastErr = err
ln.Close()
}
t.Fatal(lastErr)
return nil, nil
}
// freePort returns a localhost address nothing listens on, free for both
// TCP and UDP.
func freePort(t *testing.T) string {
t.Helper()
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
ln, pc := listenBoth(t)
defer ln.Close()
defer pc.Close()
return ln.Addr().String()
}
+24 -3
View File
@@ -15,6 +15,7 @@ import (
"os"
"os/signal"
"path/filepath"
"runtime"
"slices"
"strings"
"sync"
@@ -64,6 +65,14 @@ func main() {
}
logf("ps5-tailscale %s starting, hostname %q, web UI on %s", version, cfg.Hostname, cfg.WebAddr)
// On the console, name lookups go to whichever DNS server answers; see
// dns.go. Elsewhere the system's resolver is left alone.
var dns *dnsPicker
if runtime.GOOS == "freebsd" {
dns = newDNSPicker(logf)
dns.install()
}
// A payload that is sent again replaces the running instance, which is
// how an upgrade or a restart is done.
if stopRunningInstance(cfg.WebAddr) {
@@ -88,7 +97,11 @@ func main() {
debug.Printf(format, args...)
}
d := &daemon{cfg: cfg, cfgPath: filepath.Join(dataDir, "config.json"), logf: logf, debug: debug, console: console, started: time.Now()}
// What an update installed from the status page downloaded; this may be
// the very copy that is running now, and it is not needed again.
os.RemoveAll(filepath.Join(dataDir, updateDirName))
d := &daemon{dns: dns, cfg: cfg, cfgPath: filepath.Join(dataDir, "config.json"), logf: logf, debug: debug, console: console, started: time.Now()}
if err := d.run(); err != nil {
logf("fatal: %v", err)
notify("Tailscale failed to start:\n%v", err)
@@ -107,6 +120,7 @@ type daemon struct {
srv *tsnet.Server
lc *local.Client
fwd *forwarder
dns *dnsPicker // nil when the system's resolver is used
udp *udpExposer
mu sync.Mutex
@@ -121,9 +135,11 @@ type daemon struct {
webPort uint16 // port of the status page
lastRelogin time.Time
lastNetChange time.Time
latest releaseInfo // newest release known, see update.go
latest releaseInfo // newest release known, see update.go
update updateProgress // an update being installed, see selfupdate.go
sessions sessions // browsers that have entered the password
access accessCache // recent decisions about who may connect
tailnetWeb *tailnetListener // status page connections arriving over the tailnet
quit chan struct{}
@@ -186,11 +202,13 @@ func (d *daemon) run() error {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
d.udp = &udpExposer{listen: d.srv.ListenPacket, logf: d.logf, targetHost: "127.0.0.1"}
d.udp = &udpExposer{listen: d.srv.ListenPacket, logf: d.logf, targetHost: "127.0.0.1", allow: d.allowedFromAddr}
go d.watch(ctx)
go d.recoverLogin(ctx)
go d.exposeUDP(ctx)
go d.watchForUpdates(ctx)
go d.watchKeyExpiry(ctx)
go d.collectFiles(ctx)
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, syscall.SIGTERM, syscall.SIGINT)
@@ -248,6 +266,9 @@ func (d *daemon) networkChanged() {
d.lastNetChange = time.Now()
lc := d.lc
d.mu.Unlock()
if d.dns != nil {
d.dns.reset()
}
if recent || lc == nil {
return
}
+75 -2
View File
@@ -1,10 +1,17 @@
package main
import (
"context"
"encoding/json"
"net/http"
"net/netip"
"sort"
"strings"
"time"
"tailscale.com/ipn/ipnstate"
"tailscale.com/net/tsaddr"
"tailscale.com/tailcfg"
)
// The device list of the status page. A tailnet with a VPN add-on has
@@ -31,8 +38,13 @@ type peerInfo struct {
// and "used" for the one this console uses.
ExitNode string `json:"exitNode,omitempty"`
// Location is where an exit server says it is ("Vienna, Austria").
Location string `json:"location,omitempty"`
Tags []string `json:"tags,omitempty"`
Location string `json:"location,omitempty"`
// Conn says how traffic to the device travels right now: "direct",
// "relay" with Via naming the relay, or empty when there has been no
// traffic to it lately.
Conn string `json:"conn,omitempty"`
Via string `json:"via,omitempty"`
Tags []string `json:"tags,omitempty"`
}
// peerCount counts the peers of one kind.
@@ -77,6 +89,7 @@ func newPeerInfo(p *ipnstate.PeerStatus, suffix string) peerInfo {
case p.ExitNodeOption:
pi.ExitNode = "offered"
}
pi.Conn, pi.Via = peerConn(p)
if l := p.Location; l != nil {
parts := []string{}
for _, s := range []string{l.City, l.Country} {
@@ -118,3 +131,63 @@ func peersFromStatus(st *ipnstate.Status, withVPN bool) (peers []peerInfo, vpn p
})
return peers, vpn
}
// peerConn says how the console currently reaches a peer. A direct
// connection goes straight between the two devices; a relayed one goes
// through one of Tailscale's relay servers, or through a peer acting as one,
// which is slower and is the first thing to look at when a stream stutters.
func peerConn(p *ipnstate.PeerStatus) (conn, via string) {
switch {
case !p.Online || !p.Active:
return "", ""
case p.CurAddr != "":
return "direct", ""
case p.PeerRelay != "":
return "relay", "a peer relay"
case p.Relay != "":
return "relay", p.Relay
}
return "", ""
}
// pingResult is the answer of a connection test from the status page.
type pingResult struct {
Conn string `json:"conn"`
Via string `json:"via,omitempty"`
LatencyMS float64 `json:"latencyMs"`
}
// handlePingPeer measures the connection to one device of the tailnet.
func (d *daemon) handlePingPeer(w http.ResponseWriter, r *http.Request) {
ip, err := netip.ParseAddr(r.URL.Query().Get("ip"))
if err != nil || !tsaddr.IsTailscaleIP(ip) {
http.Error(w, "not a tailnet address", http.StatusBadRequest)
return
}
if d.lc == nil {
http.Error(w, "Tailscale is not running yet", http.StatusServiceUnavailable)
return
}
ctx, cancel := context.WithTimeout(r.Context(), 8*time.Second)
defer cancel()
res, err := d.lc.Ping(ctx, ip, tailcfg.PingDisco)
if err != nil {
http.Error(w, "no answer: "+err.Error(), http.StatusGatewayTimeout)
return
}
if res.Err != "" {
http.Error(w, "no answer: "+res.Err, http.StatusGatewayTimeout)
return
}
out := pingResult{LatencyMS: res.LatencySeconds * 1000}
switch {
case res.Endpoint != "":
out.Conn = "direct"
case res.PeerRelay != "":
out.Conn, out.Via = "relay", "a peer relay"
default:
out.Conn, out.Via = "relay", res.DERPRegionCode
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(out)
}
+203
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package main
import (
"bytes"
"encoding/json"
"net"
"net/http"
"net/http/httptest"
"path/filepath"
"strings"
"testing"
"tailscale.com/ipn/ipnstate"
)
func TestValidateForwards(t *testing.T) {
ok := []forwardRule{
{"tcp", "127.0.0.1:8096", "my-nas:8096"},
{"udp", "127.0.0.1:8096", "my-nas:8096"}, // same port, other protocol
{"tcp", "127.0.0.1:8080", "100.64.0.4:80"},
{"tcp", "127.0.0.1:8443", "[fd7a:115c:a1e0::4]:443"},
}
if err := validateForwards(ok); err != nil {
t.Errorf("good rules refused: %v", err)
}
for name, rules := range map[string][]forwardRule{
"unknown protocol": {{"icmp", "127.0.0.1:1", "a:1"}},
"no port on the device": {{"tcp", "127.0.0.1:8096", "my-nas"}},
"no device": {{"tcp", "127.0.0.1:8096", ":8096"}},
"bad local address": {{"tcp", "8096", "my-nas:8096"}},
"port 0": {{"tcp", "127.0.0.1:8096", "my-nas:0"}},
"same local port twice": {{"tcp", "127.0.0.1:8096", "a:1"}, {"tcp", "127.0.0.1:8096", "b:2"}},
"odd characters": {{"tcp", "127.0.0.1:8096", "my nas;rm:80"}},
} {
if err := validateForwards(rules); err == nil {
t.Errorf("%s: accepted", name)
}
}
}
func TestHandleForwards(t *testing.T) {
dir := t.TempDir()
d := &daemon{cfg: defaultConfig(), cfgPath: filepath.Join(dir, "config.json"), logf: t.Logf}
d.fwd = newForwarder(nil, t.Logf)
free := freePort(t)
post := func(body string) *httptest.ResponseRecorder {
rec := httptest.NewRecorder()
d.handleForwards(rec, httptest.NewRequest("POST", "/api/forwards", strings.NewReader(body)))
return rec
}
body, _ := json.Marshal([]forwardRule{{" TCP ", free, " my-nas:8096 "}})
if rec := post(string(body)); rec.Code != http.StatusOK {
t.Fatalf("status %d: %s", rec.Code, rec.Body)
}
if len(d.cfg.Forwards) != 1 || d.cfg.Forwards[0] != (forwardRule{"tcp", free, "my-nas:8096"}) {
t.Errorf("config = %+v", d.cfg.Forwards)
}
if got := d.fwd.rules(); len(got) != 1 {
t.Errorf("active forwards = %v", got)
}
saved, err := loadConfig(d.cfgPath)
if err != nil || len(saved.Forwards) != 1 {
t.Errorf("saved config: %+v, %v", saved.Forwards, err)
}
if rec := post(`[{"proto":"tcp","listen":"x","target":"y"}]`); rec.Code != http.StatusBadRequest {
t.Errorf("a bad rule: status %d", rec.Code)
}
if len(d.cfg.Forwards) != 1 {
t.Error("a refused request changed the config")
}
// An empty list removes them all.
if rec := post(`[]`); rec.Code != http.StatusOK || len(d.cfg.Forwards) != 0 || len(d.fwd.rules()) != 0 {
t.Errorf("clearing: status %d, %v", rec.Code, d.cfg.Forwards)
}
d.fwd.set(nil)
}
// The settings form no longer carries the forwards; saving it must not
// wipe them.
func TestSettingsLeaveForwardsAlone(t *testing.T) {
dir := t.TempDir()
cfg := defaultConfig()
cfg.Forwards = []forwardRule{{"tcp", freePort(t), "my-nas:8096"}}
d := &daemon{cfg: cfg, cfgPath: filepath.Join(dir, "config.json"), logf: t.Logf}
d.fwd = newForwarder(nil, t.Logf)
defer d.fwd.set(nil)
s := settingsFromConfig(cfg)
s.Forwards = nil
s.SunshineHosts = nil
body, _ := json.Marshal(s)
rec := httptest.NewRecorder()
d.handleSetConfig(rec, httptest.NewRequest("POST", "/api/config", bytes.NewReader(body)))
if rec.Code != http.StatusOK {
t.Fatalf("status %d: %s", rec.Code, rec.Body)
}
if len(d.cfg.Forwards) != 1 {
t.Errorf("the forwards were lost: %+v", d.cfg.Forwards)
}
}
func TestPeerConn(t *testing.T) {
for name, tt := range map[string]struct {
p ipnstate.PeerStatus
conn, via string
}{
"direct": {ipnstate.PeerStatus{Online: true, Active: true, CurAddr: "192.168.1.5:41641", Relay: "nyc"}, "direct", ""},
"relayed": {ipnstate.PeerStatus{Online: true, Active: true, Relay: "nyc"}, "relay", "nyc"},
"peer relay": {ipnstate.PeerStatus{Online: true, Active: true, PeerRelay: "1.2.3.4:5:6", Relay: "nyc"}, "relay", "a peer relay"},
"no traffic": {ipnstate.PeerStatus{Online: true, Relay: "nyc"}, "", ""},
"offline": {ipnstate.PeerStatus{Active: true, CurAddr: "192.168.1.5:41641"}, "", ""},
"active, no route": {ipnstate.PeerStatus{Online: true, Active: true}, "", ""},
} {
if conn, via := peerConn(&tt.p); conn != tt.conn || via != tt.via {
t.Errorf("%s: got %q %q", name, conn, via)
}
}
}
func TestPingPeerRefusesOtherAddresses(t *testing.T) {
d := &daemon{logf: t.Logf}
for _, ip := range []string{"", "8.8.8.8", "192.168.1.1", "not-an-ip", "127.0.0.1"} {
rec := httptest.NewRecorder()
d.handlePingPeer(rec, httptest.NewRequest("POST", "/api/pingpeer?ip="+ip, nil))
if rec.Code != http.StatusBadRequest {
t.Errorf("%q: status %d", ip, rec.Code)
}
}
}
func TestDNSDescribe(t *testing.T) {
p := &dnsPicker{}
if got := p.describe(); got != "" {
t.Errorf("before any lookup: %q", got)
}
for server, want := range map[string]string{
dnsLocal: "DNS payload",
"192.168.1.1:53": "router",
"1.1.1.1:53": "public",
} {
p.server, p.working = server, true
if got := p.describe(); !strings.Contains(got, want) {
t.Errorf("%s: %q", server, got)
}
}
p.working = false
if got := p.describe(); !strings.Contains(got, "no server") {
t.Errorf("not working: %q", got)
}
}
func TestCheckForwardPorts(t *testing.T) {
// Something else listening on the console.
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer ln.Close()
busy := ln.Addr().String()
free := freePort(t)
cfg := defaultConfig()
cfg.SunshineHosts = []sunshineHost{{Host: "gaming-pc"}}
d := &daemon{cfg: cfg, logf: t.Logf, webPort: 8090, proxyPort: 8118}
d.fwd = newForwarder(nil, t.Logf)
defer d.fwd.set(nil)
for name, tt := range map[string]struct {
rule forwardRule
ok bool
}{
"a free port": {forwardRule{"tcp", free, "nas:80"}, true},
"the status page's port": {forwardRule{"tcp", "127.0.0.1:8090", "nas:80"}, false},
"the proxy's port": {forwardRule{"tcp", "127.0.0.1:8118", "nas:80"}, false},
"a game streaming port": {forwardRule{"tcp", "127.0.0.1:47989", "nas:80"}, false},
"a game streaming UDP port": {forwardRule{"udp", "127.0.0.1:47998", "nas:80"}, false},
"UDP on the page's port": {forwardRule{"udp", "127.0.0.1:8090", "nas:80"}, true},
"a port something else has": {forwardRule{"tcp", busy, "nas:80"}, false},
} {
rule, err := d.checkForwardPorts([]forwardRule{tt.rule})
if (err == nil) != tt.ok {
t.Errorf("%s: %v", name, err)
}
if err != nil && rule != tt.rule {
t.Errorf("%s: blamed %v", name, rule)
}
}
// A forward that is already running may stay, and may be pointed
// somewhere else, although its port is of course in use: by us.
running := forwardRule{"tcp", free, "nas:80"}
if err := d.fwd.set([]forwardRule{running}); err != nil {
t.Fatal(err)
}
if _, err := d.checkForwardPorts([]forwardRule{running}); err != nil {
t.Errorf("a running forward was refused: %v", err)
}
if _, err := d.checkForwardPorts([]forwardRule{{"tcp", free, "laptop:8080"}}); err != nil {
t.Errorf("retargeting a running forward was refused: %v", err)
}
}
+114
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// Package relsig signs and verifies releases.
//
// A release's payload comes with a small signature file. It names the
// version and the SHA-256 of the payload and carries an Ed25519 signature
// over both, made with a key that never leaves the maintainer's machines.
// The daemon has the public half built in and installs an update only if the
// signature checks out, so a tampered release, or one put up by someone who
// got into the hosting account, is turned down.
//
// The version is part of what is signed, so a signature cannot be reused to
// pass an older payload off as a newer release.
package relsig
import (
"bytes"
"crypto/ed25519"
"encoding/base64"
"encoding/hex"
"errors"
"fmt"
"strings"
)
// FileSuffix is appended to a payload's name for its signature file.
const FileSuffix = ".sig"
const domain = "ps5-tailscale-release-v1"
// Signature is the content of a signature file.
type Signature struct {
Version string // without a leading "v"
SHA256 string // lower-case hex of the payload's SHA-256
Sig []byte
}
// message is what gets signed.
func message(version, sum string) []byte {
return []byte(domain + "\nversion=" + version + "\nsha256=" + sum + "\n")
}
func clean(version, sum string) (string, string, error) {
version = strings.TrimPrefix(strings.TrimSpace(version), "v")
sum = strings.ToLower(strings.TrimSpace(sum))
if version == "" || strings.ContainsAny(version, " \t\r\n=") {
return "", "", errors.New("invalid version")
}
if b, err := hex.DecodeString(sum); err != nil || len(b) != 32 {
return "", "", errors.New("invalid SHA-256")
}
return version, sum, nil
}
// Sign signs a payload's version and SHA-256.
func Sign(key ed25519.PrivateKey, version, sum string) (Signature, error) {
version, sum, err := clean(version, sum)
if err != nil {
return Signature{}, err
}
return Signature{Version: version, SHA256: sum, Sig: ed25519.Sign(key, message(version, sum))}, nil
}
// Verify reports whether the signature was made with the private half of pub.
func (s Signature) Verify(pub ed25519.PublicKey) bool {
return len(pub) == ed25519.PublicKeySize && ed25519.Verify(pub, message(s.Version, s.SHA256), s.Sig)
}
// Marshal renders the signature file.
func (s Signature) Marshal() []byte {
return []byte(fmt.Sprintf("version: %s\nsha256: %s\nsignature: %s\n",
s.Version, s.SHA256, base64.StdEncoding.EncodeToString(s.Sig)))
}
// Parse reads a signature file.
func Parse(b []byte) (Signature, error) {
fields, err := ParseFields(b)
if err != nil {
return Signature{}, err
}
version, sum, err := clean(fields["version"], fields["sha256"])
if err != nil {
return Signature{}, err
}
sig, err := base64.StdEncoding.DecodeString(fields["signature"])
if err != nil || len(sig) != ed25519.SignatureSize {
return Signature{}, errors.New("invalid signature field")
}
return Signature{Version: version, SHA256: sum, Sig: sig}, nil
}
// ParseFields reads "name: value" lines. Lines without a colon are ignored,
// which leaves room for a heading.
func ParseFields(b []byte) (map[string]string, error) {
if len(b) > 16<<10 {
return nil, errors.New("file too large")
}
fields := map[string]string{}
for _, line := range bytes.Split(b, []byte("\n")) {
name, value, ok := strings.Cut(string(line), ":")
if !ok {
continue
}
fields[strings.TrimSpace(name)] = strings.TrimSpace(value)
}
return fields, nil
}
// ParsePublicKey reads a base64 public key.
func ParsePublicKey(s string) (ed25519.PublicKey, error) {
b, err := base64.StdEncoding.DecodeString(strings.TrimSpace(s))
if err != nil || len(b) != ed25519.PublicKeySize {
return nil, errors.New("invalid public key")
}
return ed25519.PublicKey(b), nil
}
+76
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package relsig
import (
"crypto/ed25519"
"crypto/sha256"
"encoding/base64"
"encoding/hex"
"testing"
)
func TestSignVerify(t *testing.T) {
pub, priv, err := ed25519.GenerateKey(nil)
if err != nil {
t.Fatal(err)
}
sum := sha256.Sum256([]byte("payload"))
hexSum := hex.EncodeToString(sum[:])
sig, err := Sign(priv, "v1.2.3", hexSum)
if err != nil {
t.Fatal(err)
}
if sig.Version != "1.2.3" {
t.Errorf("version = %q", sig.Version)
}
parsed, err := Parse(sig.Marshal())
if err != nil {
t.Fatal(err)
}
if !parsed.Verify(pub) {
t.Fatal("a good signature did not verify")
}
// The same signature must not pass for another version or payload.
other := parsed
other.Version = "1.2.4"
if other.Verify(pub) {
t.Error("the signature passed for another version")
}
other = parsed
otherSum := sha256.Sum256([]byte("another payload"))
other.SHA256 = hex.EncodeToString(otherSum[:])
if other.Verify(pub) {
t.Error("the signature passed for another payload")
}
// Nor with another key.
pub2, _, _ := ed25519.GenerateKey(nil)
if parsed.Verify(pub2) {
t.Error("the signature passed with another key")
}
if parsed.Verify(nil) {
t.Error("the signature passed with no key")
}
if got, err := ParsePublicKey(base64.StdEncoding.EncodeToString(pub)); err != nil || !got.Equal(pub) {
t.Errorf("ParsePublicKey: %v", err)
}
}
func TestParseRejects(t *testing.T) {
for name, text := range map[string]string{
"empty": "",
"no signature": "version: 1.0.0\nsha256: " + hex.EncodeToString(make([]byte, 32)) + "\n",
"short sum": "version: 1.0.0\nsha256: abcd\nsignature: " + base64.StdEncoding.EncodeToString(make([]byte, 64)) + "\n",
"bad signature": "version: 1.0.0\nsha256: " + hex.EncodeToString(make([]byte, 32)) + "\nsignature: AAAA\n",
"no version": "sha256: " + hex.EncodeToString(make([]byte, 32)) + "\nsignature: " + base64.StdEncoding.EncodeToString(make([]byte, 64)) + "\n",
} {
if _, err := Parse([]byte(text)); err == nil {
t.Errorf("%s: accepted", name)
}
}
if _, err := Sign(nil, "1.0.0", "nothex"); err == nil {
t.Error("Sign accepted a bad sum")
}
}
+355
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@@ -0,0 +1,355 @@
package main
import (
"context"
"crypto/sha256"
"encoding/hex"
"errors"
"fmt"
"io"
"net"
"net/http"
"os"
"path"
"path/filepath"
"strings"
"time"
"ps5tailscale/relsig"
)
// Installing a newer release from the status page.
//
// Nothing here runs by itself: an update is only ever installed when someone
// presses the button. The payload is downloaded from the release, checked
// against the release's signature with the key built in below, and handed to
// the ELF loader on this console, which is the same as sending the payload by
// hand: the new copy stops this one and takes over.
// updatePublicKey is the public half of the release signing key (base64
// Ed25519). Only releases signed with the private half can be installed from
// the status page. A fork that makes its own releases needs its own key
// (tsd/cmd/signrelease); test builds set another one with -ldflags -X.
var updatePublicKey = "HUcHCXGe3vNEeyt4frmoKZUqYDamdA1dzsr+Hsybda0="
const (
maxPayload = 128 << 20
loaderAddr = "127.0.0.1:9021"
updateDirName = "update"
)
// updateProgress is what the status page shows about an update in progress.
type updateProgress struct {
// State is "" (nothing going on), "downloading", "verifying",
// "installing" or "failed".
State string `json:"state"`
Version string `json:"version,omitempty"`
Percent int `json:"percent,omitempty"`
Error string `json:"error,omitempty"`
}
func (d *daemon) setUpdate(p updateProgress) {
d.mu.Lock()
d.update = p
d.mu.Unlock()
}
// canInstall reports whether rel can be installed from the status page.
func canInstall(rel releaseInfo) bool {
_, _, _, ok := releaseAssets(rel)
return ok && newerVersion(version, rel.Version)
}
// payloadAssetName is what the payload of a release is called: the version is
// part of the name, so that a downloaded file says what it is.
func payloadAssetName(ver string) string { return "tailscale-" + ver + ".elf" }
// releaseAssets finds a release's payload and its signature. Releases up to
// 0.6.0 called the payload plain "tailscale.elf"; that name is still
// understood.
func releaseAssets(rel releaseInfo) (name, payloadURL, sigURL string, ok bool) {
for _, name := range []string{payloadAssetName(rel.Version), "tailscale.elf"} {
if p, s := rel.Assets[name], rel.Assets[name+relsig.FileSuffix]; p != "" && s != "" {
return name, p, s, true
}
}
return "", "", "", false
}
// startUpdate begins installing the newest known release. It returns at
// once; progress is reported through the status.
func (d *daemon) startUpdate() error {
d.mu.Lock()
defer d.mu.Unlock()
switch d.update.State {
case "downloading", "verifying", "installing":
return errors.New("an update is already in progress")
}
rel := d.latest
if !newerVersion(version, rel.Version) {
return errors.New("no newer release is known")
}
if !canInstall(rel) {
return errors.New("that release has no signed payload; install it by hand")
}
d.update = updateProgress{State: "downloading", Version: rel.Version}
go func() {
if err := d.runUpdate(rel); err != nil {
d.logf("update to %s failed: %v", rel.Version, err)
d.setUpdate(updateProgress{State: "failed", Version: rel.Version, Error: err.Error()})
}
}()
return nil
}
func (d *daemon) runUpdate(rel releaseInfo) error {
pub, err := relsig.ParsePublicKey(updatePublicKey)
if err != nil {
return errors.New("this build has no release key")
}
d.logf("update: downloading %s", rel.Version)
ctx, cancel := context.WithTimeout(context.Background(), 15*time.Minute)
defer cancel()
// The signature first: it is small, and says what the payload must be.
name, payloadURL, sigURL, ok := releaseAssets(rel)
if !ok {
return errors.New("that release has no signed payload")
}
sigBytes, err := httpGetSmall(ctx, sigURL)
if err != nil {
return fmt.Errorf("downloading the signature: %w", err)
}
sig, err := checkSignature(sigBytes, pub, rel.Version)
if err != nil {
return err
}
dir := filepath.Join(dataDir, updateDirName)
if err := os.MkdirAll(dir, 0o755); err != nil {
return err
}
file := filepath.Join(dir, name)
sum, err := d.download(ctx, payloadURL, file, rel.Version)
if err != nil {
os.Remove(file)
return fmt.Errorf("downloading the payload: %w", err)
}
d.setUpdate(updateProgress{State: "verifying", Version: rel.Version})
if sum != sig.SHA256 {
os.Remove(file)
return errors.New("the downloaded payload does not match the release's signature; not installing it")
}
d.logf("update: %s verified (sha256 %s)", rel.Version, sum)
d.setUpdate(updateProgress{State: "installing", Version: rel.Version})
d.mu.Lock()
keep := d.cfg.PayloadPath
d.mu.Unlock()
if keep != "" {
// The copy that is started at boot. A failure here is reported but
// does not stop the update of the running instance.
if err := replaceFile(file, keep); err != nil {
d.logf("update: could not replace %s: %v", keep, err)
notify("Tailscale: could not update the copy at\n%s", keep)
} else {
d.logf("update: replaced %s", keep)
}
}
if err := sendToLoader(file); err != nil {
return fmt.Errorf("the update is downloaded and verified (%s), but could not be started: %w", file, err)
}
d.logf("update: handed %s to the ELF loader", rel.Version)
// The new instance stops this one within seconds. If it does not, its
// start failed.
select {
case <-d.quit:
return nil
case <-time.After(90 * time.Second):
return errors.New("the new version did not start; see /data/tailscale/launcher.log")
}
}
// checkSignature parses a release's signature file and checks it against the
// release key and the version the release claims to be.
func checkSignature(b []byte, pub []byte, wantVersion string) (relsig.Signature, error) {
sig, err := relsig.Parse(b)
if err != nil {
return sig, fmt.Errorf("the release's signature file is not valid: %w", err)
}
if !sig.Verify(pub) {
return sig, errors.New("the release is not signed with this project's release key; not installing it")
}
if sig.Version != wantVersion {
return sig, fmt.Errorf("the signature is for version %s, not %s; not installing it", sig.Version, wantVersion)
}
if !newerVersion(version, sig.Version) {
return sig, fmt.Errorf("version %s is not newer than this one", sig.Version)
}
return sig, nil
}
func httpGet(ctx context.Context, url string) (*http.Response, error) {
req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Set("User-Agent", "ps5-tailscale/"+version)
req.Header.Set("Accept", "application/octet-stream")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
resp.Body.Close()
return nil, &httpStatusError{resp.Status}
}
return resp, nil
}
func httpGetSmall(ctx context.Context, url string) ([]byte, error) {
resp, err := httpGet(ctx, url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
return io.ReadAll(io.LimitReader(resp.Body, 16<<10))
}
// download saves url to file and returns the SHA-256 of what was written.
func (d *daemon) download(ctx context.Context, url, file, ver string) (string, error) {
resp, err := httpGet(ctx, url)
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.ContentLength > maxPayload {
return "", errors.New("the payload is implausibly large")
}
f, err := os.OpenFile(file, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o644)
if err != nil {
return "", err
}
h := sha256.New()
buf := make([]byte, 256<<10)
var done int64
lastPercent := -1
for {
n, rerr := resp.Body.Read(buf)
if n > 0 {
if done += int64(n); done > maxPayload {
f.Close()
return "", errors.New("the payload is implausibly large")
}
h.Write(buf[:n])
if _, err := f.Write(buf[:n]); err != nil {
f.Close()
return "", err
}
if resp.ContentLength > 0 {
if p := int(done * 100 / resp.ContentLength); p != lastPercent {
lastPercent = p
d.setUpdate(updateProgress{State: "downloading", Version: ver, Percent: p})
}
}
}
if rerr == io.EOF {
break
}
if rerr != nil {
f.Close()
return "", rerr
}
}
if err := f.Close(); err != nil {
return "", err
}
if resp.ContentLength > 0 && done != resp.ContentLength {
return "", errors.New("the download was cut short")
}
return hex.EncodeToString(h.Sum(nil)), nil
}
// replaceFile puts a copy of src at dst, by way of a temporary file next to
// dst so that dst is never left half written.
func replaceFile(src, dst string) error {
in, err := os.Open(src)
if err != nil {
return err
}
defer in.Close()
tmp := dst + ".new"
out, err := os.OpenFile(tmp, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o755)
if err != nil {
return err
}
if _, err := io.Copy(out, in); err != nil {
out.Close()
os.Remove(tmp)
return err
}
if err := out.Close(); err != nil {
os.Remove(tmp)
return err
}
if err := os.Rename(tmp, dst); err != nil {
os.Remove(tmp)
return err
}
return nil
}
// sendToLoader hands a payload to the ELF loader on this console.
func sendToLoader(file string) error {
f, err := os.Open(file)
if err != nil {
return err
}
defer f.Close()
c, err := net.DialTimeout("tcp", loaderAddr, 5*time.Second)
if err != nil {
return fmt.Errorf("no ELF loader on port 9021 (%w); send the file by hand", err)
}
c.SetWriteDeadline(time.Now().Add(2 * time.Minute))
// Not io.Copy(c, f) with the bare file: Go would use sendfile, which the
// PS5 kernel refuses for sockets ("socket is not connected").
if _, err := io.Copy(c, onlyReader{f}); err != nil {
c.Close()
return err
}
// The half-close tells the loader that the payload is complete.
if tc, ok := c.(*net.TCPConn); ok {
tc.CloseWrite()
}
// The connection is the new payload's standard output. Keep reading it
// for as long as this process lives, so that nothing the payload prints
// while starting hits a closed socket.
go func() {
io.Copy(io.Discard, c)
c.Close()
}()
return nil
}
// onlyReader hides everything about a reader but Read, so that copying from
// it takes the plain path.
type onlyReader struct{ io.Reader }
// validPayloadPath checks the setting that names the copy started at boot.
func validPayloadPath(p string) error {
if p == "" {
return nil
}
if !strings.HasPrefix(p, "/") {
return errors.New("it must be a full path, such as /data/pldmgr/payloads/Tailscale/tailscale.elf")
}
if path.Clean(p) != p {
return errors.New("it must not contain .. or doubled slashes")
}
if path.Ext(p) != ".elf" {
return errors.New("it must name an .elf file")
}
return nil
}
+193
View File
@@ -0,0 +1,193 @@
package main
import (
"bytes"
"context"
"crypto/ed25519"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"testing"
"ps5tailscale/relsig"
)
func withVersion(t *testing.T, v string) {
old := version
version = v
t.Cleanup(func() { version = old })
}
func TestCheckSignature(t *testing.T) {
withVersion(t, "1.0.0")
pub, priv, _ := ed25519.GenerateKey(nil)
otherPub, otherPriv, _ := ed25519.GenerateKey(nil)
_ = otherPub
sum := hex.EncodeToString(make([]byte, 32))
sign := func(key ed25519.PrivateKey, v string) []byte {
s, err := relsig.Sign(key, v, sum)
if err != nil {
t.Fatal(err)
}
return s.Marshal()
}
if _, err := checkSignature(sign(priv, "1.1.0"), pub, "1.1.0"); err != nil {
t.Errorf("a good signature was refused: %v", err)
}
for name, tt := range map[string]struct {
sig []byte
want string
}{
"signed with another key": {sign(otherPriv, "1.1.0"), "1.1.0"},
"signature of another version": {sign(priv, "1.0.5"), "1.1.0"},
"a properly signed older build": {sign(priv, "0.9.0"), "0.9.0"},
"the version that is running": {sign(priv, "1.0.0"), "1.0.0"},
"not a signature file": {[]byte("<html>not found</html>"), "1.1.0"},
"tampered version, same payload": {bytes.Replace(sign(priv, "1.0.5"), []byte("1.0.5"), []byte("1.1.0"), 1), "1.1.0"},
} {
if _, err := checkSignature(tt.sig, pub, tt.want); err == nil {
t.Errorf("%s: accepted", name)
}
}
}
func TestBuiltInKeyIsValid(t *testing.T) {
if _, err := relsig.ParsePublicKey(updatePublicKey); err != nil {
t.Fatalf("updatePublicKey: %v", err)
}
}
func TestCanInstall(t *testing.T) {
withVersion(t, "1.0.0")
both := map[string]string{"tailscale-1.1.0.elf": "u1", "tailscale-1.1.0.elf.sig": "u2"}
oldNames := map[string]string{"tailscale.elf": "u1", "tailscale.elf.sig": "u2"}
otherVersion := map[string]string{"tailscale-1.0.9.elf": "u1", "tailscale-1.0.9.elf.sig": "u2"}
for _, tt := range []struct {
rel releaseInfo
want bool
}{
{releaseInfo{Version: "1.1.0", Assets: both}, true},
{releaseInfo{Version: "1.0.0", Assets: both}, false},
{releaseInfo{Version: "1.1.0", Assets: oldNames}, true},
{releaseInfo{Version: "1.1.0", Assets: otherVersion}, false},
{releaseInfo{Version: "1.1.0", Assets: map[string]string{"tailscale-1.1.0.elf": "u1"}}, false},
{releaseInfo{Version: "1.1.0"}, false},
} {
if got := canInstall(tt.rel); got != tt.want {
t.Errorf("%+v: got %v", tt.rel, got)
}
}
}
func TestFetchLatestReleaseAssets(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, `{"tag_name":"v1.2.3","html_url":"https://example.com/r","assets":[
{"name":"tailscale.elf","browser_download_url":"https://example.com/a"},
{"name":"tailscale.elf.sig","browser_download_url":"https://example.com/b"}]}`)
}))
defer srv.Close()
rel, err := fetchLatestRelease(context.Background(), srv.URL)
if err != nil {
t.Fatal(err)
}
if rel.Version != "1.2.3" || rel.Assets["tailscale.elf"] != "https://example.com/a" || rel.Assets["tailscale.elf.sig"] != "https://example.com/b" {
t.Errorf("got %+v", rel)
}
}
func TestDownloadAndReplace(t *testing.T) {
payload := bytes.Repeat([]byte("payload "), 100_000)
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/ok":
w.Header().Set("Content-Length", fmt.Sprint(len(payload)))
w.Write(payload)
case "/short":
w.Header().Set("Content-Length", fmt.Sprint(len(payload)))
w.Write(payload[:1000])
default:
http.NotFound(w, r)
}
}))
defer srv.Close()
d := &daemon{logf: t.Logf}
dir := t.TempDir()
file := filepath.Join(dir, "tailscale.elf")
sum, err := d.download(context.Background(), srv.URL+"/ok", file, "1.1.0")
if err != nil {
t.Fatal(err)
}
want := sha256.Sum256(payload)
if sum != hex.EncodeToString(want[:]) {
t.Errorf("sum = %s", sum)
}
if d.update.State != "downloading" || d.update.Percent != 100 {
t.Errorf("progress = %+v", d.update)
}
if _, err := d.download(context.Background(), srv.URL+"/short", filepath.Join(dir, "short"), "1.1.0"); err == nil {
t.Error("a download that was cut short was accepted")
}
if _, err := d.download(context.Background(), srv.URL+"/missing", filepath.Join(dir, "missing"), "1.1.0"); err == nil {
t.Error("a 404 was accepted")
}
// Replacing the copy started at boot.
dst := filepath.Join(dir, "boot", "tailscale.elf")
os.MkdirAll(filepath.Dir(dst), 0o755)
os.WriteFile(dst, []byte("old"), 0o644)
if err := replaceFile(file, dst); err != nil {
t.Fatal(err)
}
got, _ := os.ReadFile(dst)
if !bytes.Equal(got, payload) {
t.Error("the file was not replaced")
}
if _, err := os.Stat(dst + ".new"); err == nil {
t.Error("the temporary file was left behind")
}
// A folder that does not exist: the old file elsewhere stays untouched.
if err := replaceFile(file, filepath.Join(dir, "nowhere", "tailscale.elf")); err == nil {
t.Error("replacing into a missing folder succeeded")
}
}
func TestStartUpdateRefusals(t *testing.T) {
withVersion(t, "1.0.0")
d := &daemon{logf: t.Logf}
if err := d.startUpdate(); err == nil {
t.Error("started with no release known")
}
d.latest = releaseInfo{Version: "1.1.0", Assets: map[string]string{"tailscale.elf": "x"}}
if err := d.startUpdate(); err == nil || !strings.Contains(err.Error(), "signed") {
t.Errorf("an unsigned release: %v", err)
}
d.update = updateProgress{State: "downloading"}
if err := d.startUpdate(); err == nil {
t.Error("started a second update")
}
}
func TestValidPayloadPath(t *testing.T) {
for p, ok := range map[string]bool{
"": true,
"/data/pldmgr/payloads/Tailscale/tailscale.elf": true,
"/mnt/usb0/tailscale.elf": true,
"tailscale.elf": false,
"/data/../etc/tailscale.elf": false,
"/data//tailscale.elf": false,
"/data/pldmgr/autoload.txt": false,
"/data/tailscale/": false,
} {
if err := validPayloadPath(p); (err == nil) != ok {
t.Errorf("%q: %v", p, err)
}
}
}
+65 -12
View File
@@ -8,6 +8,7 @@ import (
"net"
"net/http"
"os"
"path"
"path/filepath"
"slices"
"strconv"
@@ -40,6 +41,9 @@ type settings struct {
UDPPorts []uint16 `json:"udpPorts"`
BlockedPorts []uint16 `json:"blockedPorts"`
Priority string `json:"priority"`
AllowFrom string `json:"allowFrom"`
PayloadPath string `json:"payloadPath"`
ReceiveDir string `json:"receiveDir"`
CheckUpdates bool `json:"checkUpdates"`
Verbose bool `json:"verbose"`
@@ -60,6 +64,9 @@ func settingsFromConfig(cfg config) settings {
UDPPorts: append([]uint16{}, cfg.UDPPorts...),
BlockedPorts: append([]uint16{}, cfg.BlockedPorts...),
Priority: priorityLow,
AllowFrom: accessAll,
PayloadPath: cfg.PayloadPath,
ReceiveDir: cfg.ReceiveDir,
CheckUpdates: cfg.CheckUpdates,
Verbose: cfg.Verbose,
PasswordSet: cfg.PasswordHash != "",
@@ -67,6 +74,9 @@ func settingsFromConfig(cfg config) settings {
if cfg.Priority == priorityHigh {
s.Priority = priorityHigh
}
if cfg.AllowFrom == accessOwn {
s.AllowFrom = accessOwn
}
return s
}
@@ -88,7 +98,42 @@ func (s *settings) validate() error {
if err := validateSunshineHosts(s.SunshineHosts); err != nil {
return err
}
for _, f := range s.Forwards {
if err := validateForwards(s.Forwards); err != nil {
return err
}
if slices.Contains(s.UDPPorts, 0) || slices.Contains(s.BlockedPorts, 0) {
return fmt.Errorf("0 is not a port")
}
s.PayloadPath = strings.TrimSpace(s.PayloadPath)
if err := validPayloadPath(s.PayloadPath); err != nil {
return fmt.Errorf("payload file: %w", err)
}
s.ReceiveDir = strings.TrimSpace(s.ReceiveDir)
if s.ReceiveDir == "" {
s.ReceiveDir = defaultReceiveDir
}
if !strings.HasPrefix(s.ReceiveDir, "/") || path.Clean(s.ReceiveDir) != s.ReceiveDir || s.ReceiveDir == "/" {
return fmt.Errorf("folder for received files: it must be a full path, such as %s", defaultReceiveDir)
}
if s.AllowFrom == "" {
s.AllowFrom = accessAll
}
if s.AllowFrom != accessAll && s.AllowFrom != accessOwn {
return fmt.Errorf("who may connect must be all or own")
}
if s.Priority != priorityLow && s.Priority != priorityHigh {
return fmt.Errorf("the priority must be low or high")
}
if s.Password != nil && len(*s.Password) > 0 && len(*s.Password) < 4 {
return fmt.Errorf("the password must be at least 4 characters")
}
return nil
}
// validateForwards checks a list of local forwards.
func validateForwards(rules []forwardRule) error {
seen := map[string]bool{}
for _, f := range rules {
if f.Proto != "tcp" && f.Proto != "udp" {
return fmt.Errorf("forward %v: the protocol must be tcp or udp", f)
}
@@ -97,17 +142,14 @@ func (s *settings) validate() error {
}
host, port, err := net.SplitHostPort(f.Target)
if err != nil || host == "" || !validHostName(host) || !validPort(port) {
return fmt.Errorf("forward %v: the target must be host:port", f)
return fmt.Errorf("forward %v: the target must be a device and a port", f)
}
_, lport, _ := net.SplitHostPort(f.Listen)
if key := f.Proto + " " + lport; seen[key] {
return fmt.Errorf("two forwards use %s port %s on the console", f.Proto, lport)
} else {
seen[key] = true
}
}
if slices.Contains(s.UDPPorts, 0) || slices.Contains(s.BlockedPorts, 0) {
return fmt.Errorf("0 is not a port")
}
if s.Priority != priorityLow && s.Priority != priorityHigh {
return fmt.Errorf("the priority must be low or high")
}
if s.Password != nil && len(*s.Password) > 0 && len(*s.Password) < 4 {
return fmt.Errorf("the password must be at least 4 characters")
}
return nil
}
@@ -187,13 +229,23 @@ func (d *daemon) handleSetConfig(w http.ResponseWriter, r *http.Request) {
// panel of their own.
cfg.SunshineHosts = s.SunshineHosts
}
cfg.Forwards = s.Forwards
if s.Forwards != nil {
// Like the Sunshine hosts, the forwards have a panel of their own
// and are left alone when the settings form does not send them.
cfg.Forwards = s.Forwards
}
cfg.UDPPorts = s.UDPPorts
cfg.BlockedPorts = s.BlockedPorts
cfg.Priority = ""
if s.Priority == priorityHigh {
cfg.Priority = priorityHigh
}
cfg.PayloadPath = s.PayloadPath
cfg.ReceiveDir = s.ReceiveDir
cfg.AllowFrom = ""
if s.AllowFrom == accessOwn {
cfg.AllowFrom = accessOwn
}
cfg.CheckUpdates = s.CheckUpdates
cfg.Verbose = s.Verbose
if newHash != nil {
@@ -238,6 +290,7 @@ func (d *daemon) handleSetConfig(w http.ResponseWriter, r *http.Request) {
}
}
d.writePriorityFile()
d.access.clear()
// UDP ports and blocked ports are read from the config where they are used.
restart := []string{}
+488 -28
View File
@@ -45,6 +45,21 @@
th { text-align: left; color: var(--muted); font-weight: 500; padding: 4px 8px 8px 0; }
td { padding: 7px 8px 7px 0; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
td.off { color: var(--muted); }
/* Names may wrap anywhere; addresses, OS and status stay in one piece. */
#peers td:nth-child(n+2), th { white-space: nowrap; overflow-wrap: normal; }
code.copy { cursor: pointer; border-bottom: 1px dotted var(--muted); }
code.copy:hover, code.copy:focus-visible { color: var(--accent); border-bottom-color: var(--accent); }
code.copy.done { color: var(--ok); border-bottom-color: transparent; }
@media (max-width: 480px) {
#peers code { font-size: 12.5px; } table { font-size: 14px; }
/* Label above value, so that names and addresses get the full width. */
dl { grid-template-columns: 1fr; gap: 0; }
dt { font-size: 13px; margin-top: 10px; }
/* The device gets a line of its own; port, protocol and Remove share the next. */
.fwd .hostrow { flex-wrap: wrap; }
.fwd .hostrow .host { flex: 1 1 100%; }
#wakerows .host, #wakerows .mac { flex: 1 1 100%; }
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
button {
font: inherit; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line);
@@ -79,6 +94,16 @@
.hostrow { display: flex; gap: 8px; margin-bottom: 8px; align-items: center; }
.hostrow .host { flex: 3; min-width: 0; }
.hostrow .port { flex: 1; min-width: 90px; }
.hostrow select { flex: 0 0 auto; width: auto; }
.fwd { margin-bottom: 12px; }
.fwd .hostrow { margin-bottom: 4px; }
.fwd .use { font-size: 14px; color: var(--muted); }
button.link { border: 0; padding: 0; background: none; color: var(--accent); font-size: inherit; text-decoration: underline; cursor: pointer; }
ul.about { margin: 12px 0 0; padding-left: 20px; }
ul.about li { margin-bottom: 8px; }
.hostrow .mac { flex: 2; min-width: 0; font-family: ui-monospace, Consolas, monospace; font-size: 14px; }
.result { font-size: 14px; color: var(--muted); }
.result.good { color: var(--ok); } .result.bad { color: var(--bad); }
.hidden { display: none; }
</style>
</head>
@@ -90,6 +115,12 @@
<section class="panel banner hidden" id="updatepanel">
<strong id="updatetext"></strong>
<a id="updatelink" target="_blank" rel="noopener">Release notes and download</a>
<div class="actions" style="margin-top: 12px">
<button id="btn-update" class="hidden">Install it</button>
</div>
<p class="health hidden" id="updatewarn" style="padding-left: 0"></p>
<p class="note hidden" id="updatestate" style="margin: 12px 0 0"></p>
<p class="msg hidden" id="updatemsg"></p>
</section>
<section class="panel hidden" id="lockpanel">
@@ -107,9 +138,25 @@
<div class="state"><span class="dot" id="dot"></span><span id="state">Loading…</span></div>
<dl id="facts"></dl>
<ul class="health hidden" id="health"></ul>
<p class="health hidden" id="keywarn" style="padding-left: 0"></p>
<p class="msg hidden" id="error"></p>
</section>
<section class="panel">
<details id="aboutbox">
<summary><span class="heading">What this does, and what it does not</span></summary>
<ul class="about">
<li><strong>Your other devices can reach this PS5</strong> at its Tailscale address, from anywhere: FTP, the
payload loader, Remote Play, anything that listens on the console.</li>
<li><strong>The PS5 can reach a device on your tailnet</strong> through an address on the console itself. Set
that up under "Reach a device from this PS5"; game streaming has its own panel.</li>
<li><strong>It is not a full VPN.</strong> Games, PSN and the PS5's browser keep using your normal internet
connection, the console's public IP address does not change, and the console cannot use an exit node. The
PS5 has no way to route its own traffic through Tailscale.</li>
</ul>
</details>
</section>
<section class="panel login hidden" id="login">
<h2>Log in</h2>
<p>Scan this with your phone, or open the link on any device, to add this PS5 to your tailnet.</p>
@@ -133,6 +180,34 @@
</details>
</section>
<section class="panel hidden" id="filespanel">
<details id="filesbox">
<summary><span class="heading">Received files</span><span class="count" id="filescount"></span></summary>
<p class="note" style="margin-top: 12px">Files sent to this console with Taildrop, from your own devices, are kept in
<code id="filesdir"></code>.</p>
<table>
<thead><tr><th>Name</th><th>Size</th><th>Received</th></tr></thead>
<tbody id="files"></tbody>
</table>
</details>
</section>
<section class="panel hidden" id="reachpanel">
<h2>Reach a device from this PS5</h2>
<p class="note">Apps and the browser on the PS5 cannot open tailnet addresses. Add the device and the port you
need, and on the PS5 use the address shown for it instead.</p>
<div id="fwdrows"></div>
<div class="actions">
<button id="btn-addfwd" class="small">Add a device</button>
<button id="btn-fwds">Save</button>
</div>
<p class="hint">Example: a media server on port 8096 of <i>my-nas</i> becomes <code>127.0.0.1:8096</code> on the
PS5. Pages that insist on their own name, and HTTPS sites, may not work this way. Game streaming has its own
panel below.</p>
<p class="okmsg hidden" id="fwdok"></p>
<p class="msg hidden" id="fwdmsg"></p>
</section>
<section class="panel hidden" id="streampanel">
<h2>Game streaming (Moonlight to Sunshine)</h2>
<p class="note">Apps on the PS5 cannot reach tailnet addresses directly. List the devices that run Sunshine and
@@ -149,6 +224,22 @@
<p class="note" id="sunshine-state" style="margin: 12px 0 0"></p>
</section>
<section class="panel hidden" id="wakepanel">
<h2>Wake a device at home</h2>
<p class="note">A sleeping PC cannot be reached over Tailscale, but this console is on the same home network and
can send it a Wake-on-LAN packet. Open this page from wherever you are, press Wake, wait half a minute, then
connect. The device needs Wake-on-LAN turned on, and a wired connection works best.</p>
<div id="wakerows"></div>
<div class="actions">
<button id="btn-addwake" class="small">Add a device</button>
<button id="btn-wakes">Save</button>
</div>
<p class="hint">The address is the network card's MAC address, such as <code>00:11:22:AA:BB:CC</code>. On Windows
it is the "Physical address" shown by <code>ipconfig /all</code>.</p>
<p class="okmsg hidden" id="wakeok"></p>
<p class="msg hidden" id="wakemsg"></p>
</section>
<section class="panel">
<details id="settingsbox">
<summary><span class="heading">Settings</span></summary>
@@ -162,6 +253,14 @@
<code>passwordHash</code> from <code>/data/tailscale/config.json</code>.</span>
</label>
<label class="check hidden" id="set-pwremove-row"><input type="checkbox" id="set-pwremove"> Remove the password</label>
<label class="field">Who on the tailnet may connect to this console
<select id="set-allowfrom">
<option value="all">Every device my tailnet's access rules allow (default)</option>
<option value="own">Only devices logged in as the same user as this console</option>
</select>
<span class="hint">The second choice turns away other users' devices and devices shared into your
tailnet, for every port and this page. The page stays reachable on your home network.</span>
</label>
<label class="field">UDP ports reachable from the tailnet
<input type="text" id="set-udp" autocomplete="off">
<span class="hint">Comma separated. 9295, 9296, 9297, 9302 are Remote Play's. Empty turns inbound UDP off.</span>
@@ -170,10 +269,6 @@
<input type="text" id="set-blocked" autocomplete="off">
<span class="hint">Comma separated. Every other open TCP port on the console is reachable.</span>
</label>
<label class="field">Extra forwards from the console to tailnet hosts
<textarea id="set-forwards" spellcheck="false"></textarea>
<span class="hint">One per line: <code>tcp 127.0.0.1:8096 my-nas:8096</code> (protocol, local address, tailnet host and port).</span>
</label>
<label class="field">HTTP proxy address
<input type="text" id="set-proxy" autocomplete="off" placeholder="Off">
<span class="hint">Empty is off. Example: <code>127.0.0.1:8118</code>. Do not set it as the PS5's system proxy.</span>
@@ -184,6 +279,17 @@
<option value="high">High: shares the CPU with games; smoother Remote Play</option>
</select>
</label>
<label class="field">Folder for files received with Taildrop
<input type="text" id="set-receivedir" autocomplete="off">
</label>
<label class="field">Payload file to keep up to date
<input type="text" id="set-payloadpath" autocomplete="off" placeholder="None">
<span class="hint">Where the copy that starts with the console is kept, for example
<code>/data/pldmgr/payloads/Tailscale/tailscale.elf</code>. Installing an update from this page then
replaces that file too; it keeps its name, and your autoload entry keeps working. Give that copy a
fixed name such as <code>tailscale.elf</code>, without a version in it, so the name stays true.
Empty: only the running copy is updated, until the next restart.</span>
</label>
<label class="field">Status page address
<input type="text" id="set-webaddr" autocomplete="off">
</label>
@@ -203,8 +309,12 @@
<button id="btn-logout" class="danger">Log out</button>
<button id="btn-quit" class="danger">Stop Tailscale</button>
<button id="btn-uninstall" class="danger">Uninstall</button>
<button id="btn-diag">Download diagnostics</button>
<button id="btn-lock" class="hidden">Lock this page</button>
</div>
<p class="hint" style="margin-top: 10px">Diagnostics is one text file with the logs, version and settings, for
attaching to a bug report. E-mail addresses, your tailnet's name, public IP addresses and the password are
removed; device names are not. Read it before posting it.</p>
<p class="okmsg hidden" id="actionok"></p>
<p class="msg hidden" id="actionmsg"></p>
</section>
@@ -254,17 +364,79 @@ function show(id, text) {
el.classList.toggle('hidden', !text);
}
// The page is served over plain HTTP, where browsers do not offer the
// clipboard API, so fall back to the old way of copying a selection.
async function copyText(text) {
try { await navigator.clipboard.writeText(text); return true; } catch (e) {}
const t = document.createElement('textarea');
t.value = text; t.setAttribute('readonly', ''); t.style.position = 'fixed'; t.style.opacity = '0';
document.body.append(t); t.select();
let ok = false;
try { ok = document.execCommand('copy'); } catch (e) {}
t.remove();
return ok;
}
// copyable returns a piece of monospace text that is copied when clicked.
function copyable(text) {
const c = document.createElement('code');
c.className = 'copy'; c.textContent = text; c.title = 'Copy'; c.tabIndex = 0;
c.setAttribute('role', 'button'); c.setAttribute('aria-label', 'Copy ' + text);
const go = async () => {
if (c.classList.contains('done')) return;
const ok = await copyText(text);
c.textContent = ok ? 'Copied' : 'Copy failed'; c.classList.add('done');
setTimeout(() => { c.textContent = text; c.classList.remove('done'); }, 1200);
};
c.onclick = go;
c.onkeydown = ev => { if (ev.key === 'Enter' || ev.key === ' ') { ev.preventDefault(); go(); } };
return c;
}
// row adds a fact. mono shows the value in monospace; an array of values is
// shown as separately copyable pieces.
function row(dl, name, value, mono) {
const dt = document.createElement('dt'); dt.textContent = name;
const dd = document.createElement('dd');
if (mono) { const c = document.createElement('code'); c.textContent = value; dd.append(c); }
if (Array.isArray(value)) value.forEach((v, i) => { if (i) dd.append(', '); dd.append(copyable(v)); });
else if (mono) { const c = document.createElement('code'); c.textContent = value; dd.append(c); }
else dd.textContent = value;
dl.append(dt, dd);
}
// Facts are rebuilt on every refresh; skip that while nothing changed so a
// "Copied" confirmation is not wiped out mid-way.
let shownFacts = '';
// testTarget asks the daemon whether a device answers on a port, the way a
// forward would reach it, and writes the outcome into el.
async function testTarget(target, el) {
el.className = 'result'; el.textContent = 'testing…';
try {
const r = await api('/api/testtarget?target=' + encodeURIComponent(target), {method: 'POST'});
if (!r.ok) throw new Error((await r.text()).trim() || r.statusText);
const t = await r.json();
el.className = 'result ' + (t.ok ? 'good' : 'bad');
el.textContent = t.ok ? 'answers (' + Math.round(t.ms) + ' ms)' : t.error;
} catch (e) {
el.className = 'result bad'; el.textContent = e.message === 'locked' ? '' : e.message;
}
}
// testLink is a small "test" link with room for its result next to it.
function testLink(target, title) {
const span = document.createElement('span');
const b = document.createElement('button');
b.type = 'button'; b.className = 'link'; b.textContent = 'test'; b.title = title;
const res = document.createElement('span');
b.onclick = () => testTarget(target(), res);
span.append(b, ' ', res);
return span;
}
function hostRow(host, port) {
const div = document.createElement('div');
div.className = 'hostrow';
div.className = 'hostrow'; div.style.flexWrap = 'wrap';
const h = document.createElement('input');
h.type = 'text'; h.className = 'host'; h.placeholder = 'Device name or address'; h.value = host || '';
h.setAttribute('list', 'peernames'); h.setAttribute('aria-label', 'Sunshine host'); h.autocomplete = 'off';
@@ -275,7 +447,14 @@ function hostRow(host, port) {
x.type = 'button'; x.className = 'small'; x.textContent = 'Remove';
x.onclick = () => { div.remove(); hostsDirty = true; };
h.oninput = p.oninput = () => { hostsDirty = true; };
div.append(h, p, x);
// Whether Sunshine on that device answers: its web port is the one the
// Moonlight client talks to first.
const t = testLink(() => {
const name = h.value.trim();
return (name.includes(':') ? '[' + name + ']' : name) + ':' + (parseInt(p.value, 10) || 47989);
}, 'Check whether Sunshine on this device answers');
t.style.flex = '1 1 100%'; t.style.fontSize = '14px';
div.append(h, p, x, t);
return div;
}
@@ -295,6 +474,28 @@ function peerMatches(p, words) {
return words.every(w => text.includes(w));
}
// How the console reaches a device: straight, or through a relay server,
// which is slower. Measured on request, since measuring wakes the connection.
const pings = {}; // tailnet address -> last test result, as text
function connText(conn, via) {
return conn === 'direct' ? 'direct' : conn === 'relay' ? 'relayed' + (via ? ' via ' + via : '') : '';
}
async function testPeer(ip) {
pings[ip] = 'testing…'; shownPeers = ''; renderPeers();
try {
const r = await api('/api/pingpeer?ip=' + encodeURIComponent(ip), {method: 'POST'});
if (!r.ok) throw new Error((await r.text()).trim() || r.statusText);
const p = await r.json();
pings[ip] = connText(p.conn, p.via) + ', ' + (p.latencyMs < 10 ? p.latencyMs.toFixed(1) : Math.round(p.latencyMs)) + ' ms';
} catch (e) {
pings[ip] = e.message === 'locked' ? '' : 'no answer';
}
shownPeers = ''; renderPeers();
// A measurement says nothing about a minute from now.
const shown = pings[ip];
setTimeout(() => { if (pings[ip] === shown) { delete pings[ip]; shownPeers = ''; renderPeers(); } }, 60000);
}
function peerRow(p) {
const tr = document.createElement('tr');
const notes = [];
@@ -302,11 +503,23 @@ function peerRow(p) {
else if (p.exitNode) notes.push('exit node');
if (p.location) notes.push(p.location);
if (p.tags) notes.push(p.tags.join(', '));
for (const [v, mono, note] of [[p.name, false, notes.join(' · ')], [p.ip, true], [p.os], [p.online ? 'online' : 'offline']]) {
if (pings[p.ip]) notes.push(pings[p.ip]);
else if (p.conn) notes.push(connText(p.conn, p.via));
for (const [v, mono, first] of [[p.name, false, true], [p.ip, true], [p.os], [p.online ? 'online' : 'offline']]) {
const td = document.createElement('td');
if (!p.online) td.className = 'off';
if (mono) { const c = document.createElement('code'); c.textContent = v; td.append(c); } else td.textContent = v;
if (note) { const n = document.createElement('span'); n.className = 'tag'; n.textContent = note; td.append(n); }
if (mono) td.append(v ? copyable(v) : ''); else td.textContent = v;
if (first && (notes.length || (p.online && p.ip))) {
const n = document.createElement('span'); n.className = 'tag'; n.textContent = notes.join(' · ');
if (p.online && p.ip && pings[p.ip] !== 'testing…') {
if (notes.length) n.append(' · ');
const b = document.createElement('button');
b.type = 'button'; b.className = 'link'; b.textContent = 'test'; b.title = 'Measure the connection to this device';
b.onclick = () => testPeer(p.ip);
n.append(b);
}
td.append(n);
}
tr.append(td);
}
return tr;
@@ -318,7 +531,7 @@ function renderPeers() {
const shown = peers.filter(p => (!onlineOnly || p.online) && peerMatches(p, words));
// Rebuilding hundreds of rows every few seconds is wasteful; only do it
// when what is shown changed.
const key = JSON.stringify(shown);
const key = JSON.stringify([shown, pings]);
if (key === shownPeers) return;
shownPeers = key;
const groups = kinds.map(([kind, title]) => [title, shown.filter(p => p.kind === kind)]).filter(g => g[1].length);
@@ -336,6 +549,56 @@ function renderPeers() {
$('peernone').classList.toggle('hidden', shown.length > 0);
}
// "Reach a device from this PS5": forwards from a port on the console to a
// device on the tailnet. A row keeps the local address it was saved with; a
// new row gets one when it is saved.
let fwdsDirty = false;
let lastFwds = '';
function fwdRow(rule) {
const wrap = document.createElement('div');
wrap.className = 'fwd';
wrap.dataset.listen = rule ? rule.listen : '';
const i = rule ? rule.target.lastIndexOf(':') : -1;
const div = document.createElement('div');
div.className = 'hostrow';
const h = document.createElement('input');
h.type = 'text'; h.className = 'host'; h.placeholder = 'Device name or address'; h.value = rule ? rule.target.slice(0, i).replace(/^\[|\]$/g, '') : '';
h.setAttribute('list', 'peernames'); h.setAttribute('aria-label', 'Device'); h.autocomplete = 'off';
const p = document.createElement('input');
p.type = 'number'; p.className = 'port'; p.placeholder = 'Port'; p.min = 1; p.max = 65535;
p.value = rule ? rule.target.slice(i + 1) : ''; p.setAttribute('aria-label', 'Port on the device');
const proto = document.createElement('select');
proto.setAttribute('aria-label', 'Protocol');
for (const v of ['tcp', 'udp']) { const o = document.createElement('option'); o.value = v; o.textContent = v.toUpperCase(); proto.append(o); }
proto.value = rule ? rule.proto : 'tcp';
const x = document.createElement('button');
x.type = 'button'; x.className = 'small'; x.textContent = 'Remove';
x.onclick = () => { wrap.remove(); fwdsDirty = true; };
const use = document.createElement('div');
use.className = 'use';
if (rule) {
use.append('On the PS5 use ', copyable(rule.listen));
// Only TCP can be tested: UDP has no "it answered".
if (rule.proto === 'tcp') use.append(' · ', testLink(() => rule.target, 'Check whether the device answers on that port'));
} else use.textContent = 'The address to use on the PS5 appears here after saving.';
// Changing what a row points at keeps its address; changing the port or
// protocol gives it a new one, so it stays easy to recognise.
h.oninput = () => { fwdsDirty = true; };
p.oninput = proto.onchange = () => { fwdsDirty = true; wrap.dataset.listen = ''; use.textContent = 'The address to use on the PS5 appears here after saving.'; };
div.append(h, p, proto, x);
wrap.append(div, use);
return wrap;
}
// localPortFor picks the port on the console for a new forward: the same
// number as on the device where that is possible, so it is easy to remember.
function localPortFor(port, proto, taken) {
let local = port < 1024 ? port + 8000 : port;
while (taken.has(proto + local) || local === 8090) local++;
taken.add(proto + local);
return local;
}
async function refresh() {
let s;
try {
@@ -353,20 +616,58 @@ async function refresh() {
$('dot').className = 'dot ' + cls;
$('version').textContent = 'ps5-tailscale ' + s.version;
$('updatepanel').classList.toggle('hidden', !s.latestVersion);
const upd = s.update || {};
const busy = ['downloading', 'verifying', 'installing'].includes(upd.state);
$('updatepanel').classList.toggle('hidden', !s.latestVersion && !upd.state);
if (s.latestVersion) {
$('updatetext').textContent = 'Version ' + s.latestVersion + ' is available. ';
$('updatelink').href = s.updateURL;
}
$('btn-update').classList.toggle('hidden', !s.canUpdate || busy);
$('btn-update').textContent = 'Install ' + (s.latestVersion || 'it');
// Installing replaces the running copy. What starts with the console is
// a file somewhere else, which the user has to keep an eye on.
autoloadWarning = s.payloadPath
? 'Installing also replaces the copy at ' + s.payloadPath + '. Afterwards, check your autoload settings: your payload manager or autoloader must still start that file.'
: 'After installing, check your autoload settings. If a payload manager or autoloader starts an older Tailscale file with the console, the old version comes back after a restart: replace that file with the new release, or name it under Settings ("Payload file to keep up to date") before installing.';
show('updatewarn', s.canUpdate && !busy ? autoloadWarning : '');
show('updatestate', {
downloading: 'Downloading version ' + upd.version + (upd.percent ? ' (' + upd.percent + '%)' : '') + '…',
verifying: 'Checking the signature of version ' + upd.version + '…',
installing: 'Starting version ' + upd.version + '. This page reconnects by itself.',
}[upd.state] || '');
show('updatemsg', upd.state === 'failed' ? 'The update was not installed: ' + upd.error : updateRefused);
const dl = $('facts');
dl.replaceChildren();
row(dl, 'Name', s.dnsName || s.hostname);
if (s.ips.length) row(dl, 'Tailnet address', s.ips.join(', '), true);
if (s.tailnet) row(dl, 'Tailnet', s.tailnet);
if (s.ips.length) row(dl, 'Reachable from tailnet', 'every open TCP port' + (s.udpPorts.length ? '; UDP ' + s.udpPorts.join(', ') + ' (Remote Play)' : ''));
if (s.proxy) row(dl, 'HTTP proxy', s.proxy, true);
if (s.priority === 'high') row(dl, 'Priority', 'High');
// Key expiry, in whole days.
let keyText = '', keyWarn = '';
if (s.keyExpiry) {
const when = new Date(s.keyExpiry), days = Math.floor((when - Date.now()) / 86400000);
const date = when.toLocaleDateString(undefined, {year: 'numeric', month: 'short', day: 'numeric'});
const left = days < 0 ? 'expired' : days === 0 ? 'in less than a day' : 'in ' + days + (days === 1 ? ' day' : ' days');
keyText = date + ' (' + left + ')';
if (days < 14 && s.state === 'Running') {
keyWarn = 'This console\'s Tailscale key expires ' + left + '. After that it drops off your tailnet until you ' +
'use "Log in again" below. To stop it expiring, open the Tailscale admin console, find this device and ' +
'choose "Disable key expiry".';
}
}
show('keywarn', keyWarn);
const factsNow = JSON.stringify([s.dnsName, s.hostname, s.ips, s.tailnet, s.udpPorts, s.proxy, s.priority, s.allowFrom, keyText, s.dns]);
if (factsNow !== shownFacts) {
shownFacts = factsNow;
const dl = $('facts');
dl.replaceChildren();
row(dl, 'Name', s.dnsName || s.hostname);
if (s.ips.length) row(dl, 'Tailnet address', s.ips);
if (s.tailnet) row(dl, 'Tailnet', s.tailnet);
if (s.ips.length) row(dl, 'Reachable from tailnet', 'every open TCP port' + (s.udpPorts.length ? '; UDP ' + s.udpPorts.join(', ') + ' (Remote Play)' : '')
+ (s.allowFrom === 'own' ? '; only from your own devices' : ''));
if (keyText) row(dl, 'Key expires', keyText);
if (s.dns) row(dl, 'Name lookups', s.dns);
if (s.proxy) row(dl, 'HTTP proxy', s.proxy, true);
if (s.priority === 'high') row(dl, 'Priority', 'High');
}
const health = $('health');
health.replaceChildren(...(s.health || []).map(h => { const li = document.createElement('li'); li.textContent = h; return li; }));
@@ -393,6 +694,12 @@ async function refresh() {
// the user is not in the middle of editing them.
$('streampanel').classList.toggle('hidden', s.state !== 'Running' && !s.sunshineHosts.length);
$('peernames').replaceChildren(...devices.map(p => { const o = document.createElement('option'); o.value = p.name; return o; }));
$('reachpanel').classList.toggle('hidden', s.state !== 'Running' && !s.userForwards.length);
const fwdsNow = JSON.stringify(s.userForwards);
if (!fwdsDirty && fwdsNow !== lastFwds) {
lastFwds = fwdsNow;
$('fwdrows').replaceChildren(...s.userForwards.map(fwdRow));
}
const hostsNow = JSON.stringify(s.sunshineHosts);
if (!hostsDirty && hostsNow !== lastHosts) {
lastHosts = hostsNow;
@@ -402,8 +709,22 @@ async function refresh() {
? s.sunshineHosts.map(h => h.host + ': add ' + h.address + ' in Moonlight').join('. ') + '.'
: 'No Sunshine host is forwarded.';
// Devices to wake.
$('wakepanel').classList.toggle('hidden', s.state !== 'Running' && !s.wake.length);
const wakeNow = JSON.stringify(s.wake);
if (!wakeDirty && wakeNow !== lastWake) {
lastWake = wakeNow;
$('wakerows').replaceChildren(...s.wake.map(wakeRow));
}
// Before the first login, say what to expect; afterwards the note stays
// folded away unless it was opened.
if (needLogin && !aboutShown) { aboutShown = true; $('aboutbox').open = true; }
$('btn-lock').classList.toggle('hidden', !s.passwordSet);
refreshFiles();
if ($('logbox').open) {
try { $('logs').textContent = await (await api('/api/logs')).text(); } catch (e) {}
}
@@ -426,6 +747,54 @@ async function act(path, confirmText, body) {
}
}
// Received files. Asked for separately from the status, and only redrawn
// when the list changed.
let shownFiles = '';
function fileSize(n) {
if (n < 1024) return n + ' B';
const units = ['KB', 'MB', 'GB', 'TB'];
let i = -1;
do { n /= 1024; i++; } while (n >= 1024 && i < units.length - 1);
return (n < 10 ? n.toFixed(1) : Math.round(n)) + ' ' + units[i];
}
async function refreshFiles() {
let f;
try { f = await (await api('/api/files')).json(); } catch (e) { return; }
const key = JSON.stringify(f);
if (key === shownFiles) return;
shownFiles = key;
$('filespanel').classList.toggle('hidden', !f.files.length);
$('filescount').textContent = f.files.length;
$('filesdir').textContent = f.dir;
$('files').replaceChildren(...f.files.map(file => {
const tr = document.createElement('tr');
const name = document.createElement('td');
const a = document.createElement('a');
a.href = '/api/files/get?name=' + encodeURIComponent(file.name); a.textContent = file.name; a.download = file.name;
name.append(a);
const size = document.createElement('td'); size.textContent = fileSize(file.size);
const when = document.createElement('td'); when.textContent = new Date(file.time).toLocaleString(undefined, {dateStyle: 'medium', timeStyle: 'short'});
size.style.whiteSpace = when.style.whiteSpace = 'nowrap';
tr.append(name, size, when);
return tr;
}));
}
let updateRefused = ''; // why the daemon would not start an update
let autoloadWarning = '';
$('btn-update').onclick = async () => {
const v = $('btn-update').textContent.replace('Install ', '');
if (!confirm('Download and install version ' + v + '?\n\nTailscale on this PS5 restarts, which interrupts a stream or Remote Play session that runs through it.\n\n' + autoloadWarning)) return;
updateRefused = '';
try {
const r = await api('/api/update', {method: 'POST'});
if (!r.ok) throw new Error((await r.text()).trim() || r.statusText);
} catch (e) {
if (e.message !== 'locked') updateRefused = e.message;
}
refresh();
};
$('btn-login').onclick = () => act('/api/login');
$('btn-logout').onclick = () => act('/api/logout', 'Log this PS5 out of your tailnet?');
$('btn-quit').onclick = () => act('/api/quit', 'Stop Tailscale on this PS5? Send the payload again to start it.');
@@ -449,6 +818,99 @@ $('lockform').onsubmit = async ev => {
refresh();
};
// Forwards to tailnet devices.
$('btn-addfwd').onclick = () => { $('fwdrows').append(fwdRow(null)); fwdsDirty = true; };
$('btn-fwds').onclick = async () => {
show('fwdmsg', ''); show('fwdok', '');
const rows = [...$('fwdrows').children].map(w => ({
host: w.querySelector('.host').value.trim(), port: parseInt(w.querySelector('.port').value, 10) || 0,
proto: w.querySelector('select').value, listen: w.dataset.listen,
})).filter(r => r.host || r.port);
for (const r of rows) {
if (!r.host || !(r.port >= 1 && r.port <= 65535)) { show('fwdmsg', 'Each line needs a device and a port from 1 to 65535.'); return; }
}
// Ports on the console that are spoken for: rows that keep their address.
const taken = new Set(rows.filter(r => r.listen).map(r => r.proto + r.listen.slice(r.listen.lastIndexOf(':') + 1)));
const rules = rows.map(r => ({
proto: r.proto,
listen: r.listen || '127.0.0.1:' + localPortFor(r.port, r.proto, taken),
target: (r.host.includes(':') ? '[' + r.host + ']' : r.host) + ':' + r.port,
}));
try {
for (let attempt = 0; ; attempt++) {
const resp = await api('/api/forwards', {method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(rules)});
const text = (await resp.text()).trim();
if (resp.ok) break;
// A port on the console that something else uses: if it was picked
// here, pick the next one and try again.
const takenPort = resp.headers.get('X-Port-Taken');
const n = rules.findIndex((r, k) => !rows[k].listen && r.proto + ' ' + r.listen === takenPort);
if (resp.status !== 409 || n < 0 || attempt >= 30) throw new Error(text || resp.statusText);
rules[n].listen = '127.0.0.1:' + localPortFor(parseInt(rules[n].listen.split(':').pop(), 10) + 1, rules[n].proto, taken);
}
show('fwdok', rules.length ? 'Saved. Use the addresses shown on the PS5.' : 'Saved.');
} catch (e) {
if (e.message !== 'locked') show('fwdmsg', e.message);
}
fwdsDirty = false; lastFwds = '';
refresh();
};
// Devices to wake. A row can be woken once it has been saved.
let wakeDirty = false;
let lastWake = '';
let aboutShown = false;
function wakeRow(t) {
const div = document.createElement('div');
div.className = 'hostrow'; div.style.flexWrap = 'wrap';
const n = document.createElement('input');
n.type = 'text'; n.className = 'host'; n.placeholder = 'Name, for example gaming-pc'; n.value = t ? t.name : '';
n.setAttribute('list', 'peernames'); n.setAttribute('aria-label', 'Name'); n.autocomplete = 'off'; n.maxLength = 64;
const m = document.createElement('input');
m.type = 'text'; m.className = 'mac'; m.placeholder = '00:11:22:AA:BB:CC'; m.value = t ? t.mac : '';
m.setAttribute('aria-label', 'MAC address'); m.autocomplete = 'off'; m.spellcheck = false;
const w = document.createElement('button');
w.type = 'button'; w.textContent = 'Wake'; w.disabled = !t;
w.title = t ? 'Send the wake-up packet' : 'Save first';
w.onclick = async () => {
show('wakemsg', ''); show('wakeok', '');
try {
const r = await api('/api/wake?mac=' + encodeURIComponent(t.mac), {method: 'POST'});
const text = (await r.text()).trim();
if (!r.ok) throw new Error(text || r.statusText);
show('wakeok', text);
} catch (e) {
if (e.message !== 'locked') show('wakemsg', e.message);
}
};
const x = document.createElement('button');
x.type = 'button'; x.className = 'small'; x.textContent = 'Remove';
x.onclick = () => { div.remove(); wakeDirty = true; };
n.oninput = () => { wakeDirty = true; };
m.oninput = () => { wakeDirty = true; w.disabled = true; w.title = 'Save first'; };
div.append(n, m, w, x);
return div;
}
$('btn-addwake').onclick = () => { $('wakerows').append(wakeRow(null)); wakeDirty = true; };
$('btn-wakes').onclick = async () => {
show('wakemsg', ''); show('wakeok', '');
const list = [...$('wakerows').children].map(d => ({name: d.querySelector('.host').value.trim(), mac: d.querySelector('.mac').value.trim()}))
.filter(t => t.name || t.mac);
try {
const r = await api('/api/wakelist', {method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(list)});
const text = (await r.text()).trim();
if (!r.ok) throw new Error(text || r.statusText);
show('wakeok', 'Saved.');
wakeDirty = false; lastWake = '';
} catch (e) {
if (e.message !== 'locked') show('wakemsg', e.message);
}
refresh();
};
// The diagnostics file is a plain download; the session cookie covers it.
$('btn-diag').onclick = () => { location.href = '/api/diagnostics'; };
// Game streaming hosts.
$('btn-addhost').onclick = () => { $('hostrows').append(hostRow('', 0)); hostsDirty = true; };
$('btn-sunshine').onclick = async () => {
@@ -474,9 +936,11 @@ async function loadSettings() {
$('set-pwremove-row').classList.toggle('hidden', !c.passwordSet);
$('set-udp').value = c.udpPorts.join(', ');
$('set-blocked').value = c.blockedPorts.join(', ');
$('set-forwards').value = c.forwards.map(f => f.proto + ' ' + f.listen + ' ' + f.target).join('\n');
$('set-proxy').value = c.httpProxyAddr;
$('set-priority').value = c.priority;
$('set-allowfrom').value = c.allowFrom;
$('set-receivedir').value = c.receiveDir;
$('set-payloadpath').value = c.payloadPath;
$('set-webaddr').value = c.webAddr;
$('set-updates').checked = c.checkUpdates;
$('set-verbose').checked = c.verbose;
@@ -488,20 +952,16 @@ $('settingsform').onsubmit = async ev => {
show('settingsmsg', ''); show('settingsok', '');
const udp = ports($('set-udp').value), blocked = ports($('set-blocked').value);
if (udp.concat(blocked).some(p => !(p >= 1 && p <= 65535))) { show('settingsmsg', 'Ports must be numbers from 1 to 65535.'); return; }
const forwards = [];
for (const line of $('set-forwards').value.split('\n').map(l => l.trim()).filter(l => l)) {
const parts = line.split(/\s+/);
if (parts.length !== 3) { show('settingsmsg', 'Each forward needs three parts: protocol, local address, target. Problem: ' + line); return; }
forwards.push({proto: parts[0].toLowerCase(), listen: parts[1], target: parts[2]});
}
const c = {
hostname: $('set-hostname').value.trim(),
webAddr: $('set-webaddr').value.trim(),
httpProxyAddr: $('set-proxy').value.trim(),
forwards: forwards,
udpPorts: udp,
blockedPorts: blocked,
priority: $('set-priority').value,
allowFrom: $('set-allowfrom').value,
receiveDir: $('set-receivedir').value.trim(),
payloadPath: $('set-payloadpath').value.trim(),
checkUpdates: $('set-updates').checked,
verbose: $('set-verbose').checked,
};
+173
View File
@@ -0,0 +1,173 @@
package main
import (
"bytes"
"errors"
"net"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"testing"
"time"
)
func TestScrub(t *testing.T) {
in := `2026-10-06 login URL: https://login.tailscale.com/a/1a2b3c4d5e6f
self: ps5.tail-scale-fish.ts.net. user someone@example.com authkey tskey-auth-kABCDEF123-xyzXYZ
endpoints 203.0.113.7:49866 (portmap), 192.168.1.50:49866 (local), 100.64.0.5, 10.0.0.5, 172.20.1.1
derp 198.51.100.9:443, resolver 1.1.1.1:53, version 1.104.0, loopback 127.0.0.1:8090
peer gaming-pc.tail-scale-fish.ts.net
dns: Set: {Routes:{ts.net.:[199.247.155.53] tail-scale-fish.ts.net.:[]} SearchDomains:[tail-scale-fish.ts.net.]}`
out := string(scrub([]byte(in)))
for _, gone := range []string{"1a2b3c4d5e6f", "someone@example.com", "kABCDEF123", "tail-scale-fish", "203.0.113.7", "198.51.100.9"} {
if strings.Contains(out, gone) {
t.Errorf("%q was not removed:\n%s", gone, out)
}
}
for _, kept := range []string{"192.168.1.50:49866", "100.64.0.5", "10.0.0.5", "172.20.1.1", "1.1.1.1:53", "1.104.0", "127.0.0.1:8090",
"ps5.<tailnet>.ts.net", "gaming-pc.<tailnet>.ts.net", "<email>", "<public-ip>:49866", "2026-10-06"} {
if !strings.Contains(out, kept) {
t.Errorf("%q is missing:\n%s", kept, out)
}
}
}
func TestDiagnostics(t *testing.T) {
old := dataDir
dataDir = t.TempDir()
t.Cleanup(func() { dataDir = old })
os.WriteFile(filepath.Join(dataDir, "launcher.log"), []byte("2026-10-05 launcher: starting, firmware 9.60, pid 5\n2026-10-06 launcher: starting, firmware 13.42, pid 115\n"), 0o644)
os.WriteFile(filepath.Join(dataDir, "tailscale.log"), []byte("main log line from someone@example.com\n"), 0o644)
cfg := defaultConfig()
cfg.PasswordHash = "pbkdf2-sha256$210000$c2FsdA$a2V5"
cfg.AuthKey = "tskey-auth-secret"
cfg.Wake = []wakeTarget{{Name: "gaming-pc", MAC: "00:11:22:aa:bb:cc"}}
d := &daemon{cfg: cfg, logf: t.Logf, started: time.Now(), state: "Running"}
d.fwd = newForwarder(nil, t.Logf)
rec := httptest.NewRecorder()
d.handleDiagnostics(rec, httptest.NewRequest("GET", "/api/diagnostics", nil))
body := rec.Body.String()
if cd := rec.Header().Get("Content-Disposition"); !strings.HasPrefix(cd, "attachment") || !strings.Contains(cd, ".txt") {
t.Errorf("Content-Disposition = %q", cd)
}
for _, want := range []string{"firmware: 13.42", "state: Running", "main log line", `"passwordHash": "(set)"`, "===== launcher.log =====", "tailscale-debug.log"} {
if !strings.Contains(body, want) {
t.Errorf("missing %q", want)
}
}
for _, secret := range []string{"c2FsdA", "tskey-auth-secret", "someone@example.com", "00:11:22:aa:bb:cc"} {
if strings.Contains(body, secret) {
t.Errorf("%q is in the diagnostics", secret)
}
}
// The daemon's own copy of the settings must not have been touched.
if d.cfg.PasswordHash != cfg.PasswordHash || d.cfg.Wake[0].MAC != "00:11:22:aa:bb:cc" {
t.Error("building the diagnostics changed the settings")
}
}
func TestParseMAC(t *testing.T) {
for in, want := range map[string]string{
"00:11:22:AA:BB:CC": "00:11:22:aa:bb:cc",
"00-11-22-aa-bb-cc": "00:11:22:aa:bb:cc",
"001122AABBCC": "00:11:22:aa:bb:cc",
"0011.22aa.bbcc": "00:11:22:aa:bb:cc",
" 00:11:22:aa:bb:cc ": "00:11:22:aa:bb:cc",
} {
mac, err := parseMAC(in)
if err != nil || mac.String() != want {
t.Errorf("parseMAC(%q) = %v, %v", in, mac, err)
}
}
for _, bad := range []string{"", "gaming-pc", "00:11:22:aa:bb", "00:11:22:aa:bb:cc:dd:ee", "zz:11:22:aa:bb:cc", "192.168.1.5"} {
if _, err := parseMAC(bad); err == nil {
t.Errorf("parseMAC(%q) accepted", bad)
}
}
}
func TestMagicPacket(t *testing.T) {
mac, _ := parseMAC("00:11:22:aa:bb:cc")
p := magicPacket(mac)
if len(p) != 102 {
t.Fatalf("length %d", len(p))
}
if !bytes.Equal(p[:6], bytes.Repeat([]byte{0xff}, 6)) {
t.Error("the packet does not start with six 0xff")
}
for i := 0; i < 16; i++ {
if !bytes.Equal(p[6+i*6:12+i*6], mac) {
t.Fatalf("repetition %d is wrong", i)
}
}
}
func TestBroadcastAddrs(t *testing.T) {
list := broadcastAddrs()
if len(list) == 0 || !list[0].Equal(net.IPv4bcast) {
t.Fatalf("got %v", list)
}
for _, ip := range list {
if ip.To4() == nil || ip.IsLoopback() {
t.Errorf("unexpected address %v", ip)
}
}
}
func TestWakeHandlers(t *testing.T) {
d := &daemon{cfg: defaultConfig(), cfgPath: filepath.Join(t.TempDir(), "config.json"), logf: t.Logf}
post := func(h http.HandlerFunc, url, body string) *httptest.ResponseRecorder {
rec := httptest.NewRecorder()
h(rec, httptest.NewRequest("POST", url, strings.NewReader(body)))
return rec
}
if rec := post(d.handleWakeList, "/api/wakelist", `[{"name":" gaming-pc ","mac":"00-11-22-AA-BB-CC"},{"name":"","mac":"001122aabbdd"}]`); rec.Code != http.StatusOK {
t.Fatalf("status %d: %s", rec.Code, rec.Body)
}
want := []wakeTarget{{"gaming-pc", "00:11:22:aa:bb:cc"}, {"00:11:22:aa:bb:dd", "00:11:22:aa:bb:dd"}}
if len(d.cfg.Wake) != 2 || d.cfg.Wake[0] != want[0] || d.cfg.Wake[1] != want[1] {
t.Errorf("list = %+v", d.cfg.Wake)
}
if saved, err := loadConfig(d.cfgPath); err != nil || len(saved.Wake) != 2 {
t.Errorf("saved: %+v, %v", saved.Wake, err)
}
if rec := post(d.handleWakeList, "/api/wakelist", `[{"name":"x","mac":"not a mac"}]`); rec.Code != http.StatusBadRequest {
t.Errorf("a bad address: status %d", rec.Code)
}
// Only listed devices can be woken.
if rec := post(d.handleWake, "/api/wake?mac=de:ad:be:ef:00:01", ""); rec.Code != http.StatusNotFound {
t.Errorf("an unlisted device: status %d", rec.Code)
}
if rec := post(d.handleWake, "/api/wake?mac=nonsense", ""); rec.Code != http.StatusBadRequest {
t.Errorf("nonsense: status %d", rec.Code)
}
}
func TestDescribeDialError(t *testing.T) {
for msg, want := range map[string]string{
"dial tcp 100.64.0.4:80: connect: connection refused": "nothing listens",
"context deadline exceeded": "no answer",
"dial tcp: i/o timeout": "no answer",
"lookup nosuch: no such host": "no device with that name",
"something else entirely": "something else entirely",
} {
if got := describeDialError(errors.New(msg)); !strings.Contains(got, want) {
t.Errorf("%q -> %q", msg, got)
}
}
}
func TestTestTargetRefusesBadTargets(t *testing.T) {
d := &daemon{logf: t.Logf}
for _, target := range []string{"", "nas", "nas:0", ":80", "na s:80", "nas:99999"} {
rec := httptest.NewRecorder()
d.handleTestTarget(rec, httptest.NewRequest("POST", "/api/testtarget?target="+strings.ReplaceAll(target, " ", "%20"), nil))
if rec.Code != http.StatusBadRequest {
t.Errorf("%q: status %d", target, rec.Code)
}
}
}
+228
View File
@@ -0,0 +1,228 @@
package main
import (
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"sort"
"strings"
"time"
// tsnet leaves Taildrop out unless it is linked in.
_ "tailscale.com/feature/taildrop"
)
// Receiving files with Taildrop.
//
// A file sent to the console from another device of the same user arrives
// in a holding area inside Tailscale's state directory. The daemon moves
// each one to a folder that can be reached with FTP, says so on screen, and
// lists the folder on the status page.
const defaultReceiveDir = "/data/tailscale/received"
// receivedFile is one entry of the list on the status page.
type receivedFile struct {
Name string `json:"name"`
Size int64 `json:"size"`
Time time.Time `json:"time"`
}
func (d *daemon) receiveDir() string {
d.mu.Lock()
defer d.mu.Unlock()
if d.cfg.ReceiveDir == "" {
return defaultReceiveDir
}
return d.cfg.ReceiveDir
}
// collectFiles waits for files in the holding area and moves them out.
func (d *daemon) collectFiles(ctx context.Context) {
for ctx.Err() == nil {
// Returns as soon as there are files, or after the wait with none.
files, err := d.lc.AwaitWaitingFiles(ctx, time.Minute)
if ctx.Err() != nil {
return
}
if err != nil || len(files) == 0 {
if err != nil && !strings.Contains(err.Error(), "context deadline exceeded") {
// Typically: not logged in yet, or Taildrop is turned off
// for the tailnet. Try again later without filling the log.
select {
case <-ctx.Done():
return
case <-time.After(30 * time.Second):
}
}
continue
}
dir := d.receiveDir()
var got []string
for _, f := range files {
name, err := d.collectFile(ctx, dir, f.Name)
if err != nil {
d.logf("taildrop: %s: %v", f.Name, err)
continue
}
d.logf("taildrop: received %s (%d bytes) into %s", name, f.Size, dir)
got = append(got, name)
}
switch len(got) {
case 0:
// Nothing could be moved; do not spin on the same files.
select {
case <-ctx.Done():
return
case <-time.After(30 * time.Second):
}
case 1:
notify("Tailscale: received a file\n%s\nin %s", got[0], dir)
default:
notify("Tailscale: received %d files\nin %s", len(got), dir)
}
}
}
// collectFile copies one waiting file into dir and removes it from the
// holding area. It returns the name the file got.
func (d *daemon) collectFile(ctx context.Context, dir, name string) (string, error) {
rc, _, err := d.lc.GetWaitingFile(ctx, name)
if err != nil {
return "", err
}
defer rc.Close()
saved, err := saveReceived(dir, name, rc)
if err != nil {
return "", err
}
if err := d.lc.DeleteWaitingFile(ctx, name); err != nil {
d.logf("taildrop: %s is saved, but could not be removed from the holding area: %v", name, err)
}
return saved, nil
}
// safeFileName reduces a name from another device to a plain file name.
func safeFileName(name string) string {
name = strings.ReplaceAll(name, "\\", "/")
name = name[strings.LastIndex(name, "/")+1:]
name = strings.Map(func(r rune) rune {
if r < 0x20 || r == 0x7f {
return -1
}
return r
}, name)
name = strings.TrimSpace(name)
if name == "" || name == "." || name == ".." {
return "file"
}
return name
}
// saveReceived writes r to a new file in dir, named after name. A file that
// is already there is never overwritten: the new one gets a number instead.
func saveReceived(dir, name string, r io.Reader) (string, error) {
if err := os.MkdirAll(dir, 0o755); err != nil {
return "", err
}
name = safeFileName(name)
ext := filepath.Ext(name)
base := strings.TrimSuffix(name, ext)
var f *os.File
var err error
final := name
for n := 1; ; n++ {
if n > 1 {
final = fmt.Sprintf("%s (%d)%s", base, n, ext)
}
f, err = os.OpenFile(filepath.Join(dir, final), os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o644)
if err == nil {
break
}
if !os.IsExist(err) || n > 10000 {
return "", err
}
}
if _, err := io.Copy(f, r); err != nil {
f.Close()
os.Remove(f.Name())
return "", err
}
if err := f.Close(); err != nil {
os.Remove(f.Name())
return "", err
}
return final, nil
}
// listReceived returns the newest files in dir, newest first.
func listReceived(dir string, max int) []receivedFile {
files := []receivedFile{}
entries, err := os.ReadDir(dir)
if err != nil {
return files
}
for _, e := range entries {
info, err := e.Info()
if err != nil || !info.Mode().IsRegular() {
continue
}
files = append(files, receivedFile{Name: e.Name(), Size: info.Size(), Time: info.ModTime()})
}
sort.Slice(files, func(i, j int) bool { return files[i].Time.After(files[j].Time) })
if len(files) > max {
files = files[:max]
}
return files
}
func (d *daemon) handleFiles(w http.ResponseWriter, r *http.Request) {
dir := d.receiveDir()
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Cache-Control", "no-store")
json.NewEncoder(w).Encode(map[string]any{"dir": dir, "files": listReceived(dir, 100)})
}
// handleFileGet sends one received file to the browser.
func (d *daemon) handleFileGet(w http.ResponseWriter, r *http.Request) {
name := r.URL.Query().Get("name")
if name == "" || name != safeFileName(name) {
http.Error(w, "no such file", http.StatusNotFound)
return
}
f, err := os.Open(filepath.Join(d.receiveDir(), name))
if err != nil {
http.Error(w, "no such file", http.StatusNotFound)
return
}
defer f.Close()
info, err := f.Stat()
if err != nil || !info.Mode().IsRegular() {
http.Error(w, "no such file", http.StatusNotFound)
return
}
// Always a download, never something the browser renders: the file came
// from elsewhere and this page's origin has the controls on it.
w.Header().Set("Content-Type", "application/octet-stream")
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename*=UTF-8''%s", urlPathEscape(name)))
w.Header().Set("X-Content-Type-Options", "nosniff")
// Wrapped so that Go does not use sendfile, which fails on the PS5.
http.ServeContent(w, r, "", info.ModTime(), struct{ io.ReadSeeker }{f})
}
func urlPathEscape(s string) string {
var b strings.Builder
for _, c := range []byte(s) {
switch {
case c >= 'a' && c <= 'z', c >= 'A' && c <= 'Z', c >= '0' && c <= '9', c == '-', c == '.', c == '_', c == '~':
b.WriteByte(c)
default:
fmt.Fprintf(&b, "%%%02X", c)
}
}
return b.String()
}
+94
View File
@@ -0,0 +1,94 @@
package main
import (
"net/http"
"net/http/httptest"
"net/url"
"os"
"path/filepath"
"strings"
"testing"
)
func TestSafeFileName(t *testing.T) {
for in, want := range map[string]string{
"photo.jpg": "photo.jpg",
"../../etc/passwd": "passwd",
`C:\Users\me\notes.txt`: "notes.txt",
"dir/sub/file.bin": "file.bin",
"..": "file",
"": "file",
"a\x00b\n.txt": "ab.txt",
" spaced name.pkg ": "spaced name.pkg",
"save (1).zip": "save (1).zip",
"/data/tailscale/x.json": "x.json",
} {
if got := safeFileName(in); got != want {
t.Errorf("safeFileName(%q) = %q, want %q", in, got, want)
}
}
}
func TestSaveReceivedNeverOverwrites(t *testing.T) {
dir := filepath.Join(t.TempDir(), "received")
var names []string
for _, content := range []string{"one", "two", "three"} {
name, err := saveReceived(dir, "../save.zip", strings.NewReader(content))
if err != nil {
t.Fatal(err)
}
names = append(names, name)
}
want := []string{"save.zip", "save (2).zip", "save (3).zip"}
for i := range want {
if names[i] != want[i] {
t.Errorf("file %d was named %q, want %q", i, names[i], want[i])
}
}
if b, _ := os.ReadFile(filepath.Join(dir, "save.zip")); string(b) != "one" {
t.Errorf("the first file was changed: %q", b)
}
// Nothing escaped the folder.
if _, err := os.Stat(filepath.Join(filepath.Dir(dir), "save.zip")); err == nil {
t.Error("a file was written outside the folder")
}
files := listReceived(dir, 2)
if len(files) != 2 {
t.Errorf("listReceived returned %d files, want 2", len(files))
}
if got := listReceived(filepath.Join(dir, "missing"), 10); len(got) != 0 {
t.Errorf("a missing folder listed %d files", len(got))
}
}
func TestFileDownload(t *testing.T) {
dir := t.TempDir()
os.WriteFile(filepath.Join(dir, "page.html"), []byte("<script>alert(1)</script>"), 0o644)
os.WriteFile(filepath.Join(filepath.Dir(dir), "secret.txt"), []byte("secret"), 0o644)
cfg := defaultConfig()
cfg.ReceiveDir = dir
d := &daemon{cfg: cfg, logf: t.Logf}
get := func(name string) *httptest.ResponseRecorder {
rec := httptest.NewRecorder()
d.handleFileGet(rec, httptest.NewRequest("GET", "/api/files/get?name="+url.QueryEscape(name), nil))
return rec
}
rec := get("page.html")
if rec.Code != http.StatusOK || !strings.Contains(rec.Body.String(), "alert") {
t.Fatalf("download: %d", rec.Code)
}
// Served as a download, not as a page of this origin.
if ct := rec.Header().Get("Content-Type"); ct != "application/octet-stream" {
t.Errorf("Content-Type = %q", ct)
}
if cd := rec.Header().Get("Content-Disposition"); !strings.HasPrefix(cd, "attachment") {
t.Errorf("Content-Disposition = %q", cd)
}
for _, name := range []string{"../secret.txt", "..", "", "missing.txt", `..\secret.txt`, "sub/page.html"} {
if rec := get(name); rec.Code != http.StatusNotFound {
t.Errorf("%q: status %d", name, rec.Code)
}
}
}
+15 -1
View File
@@ -27,7 +27,10 @@ type udpRelayConfig struct {
listen func() (net.PacketConn, error)
// dial opens the connection to the target for one client.
dial func(ctx context.Context) (net.Conn, error)
logf func(format string, args ...any)
// allow, if set, is asked once per client address whether to serve it.
// Datagrams from a client it turns down are dropped.
allow func(from net.Addr) bool
logf func(format string, args ...any)
}
// udpFlow is the relay state for one client address.
@@ -118,6 +121,17 @@ func (r *udpRelay) readLoop() {
key := from.String()
r.mu.Lock()
fl := r.flows[key]
if fl == nil && r.cfg.allow != nil {
// Ask without holding the lock; the answer may take a moment.
r.mu.Unlock()
ok := r.cfg.allow(from)
r.mu.Lock()
if !ok {
r.mu.Unlock()
continue
}
fl = r.flows[key]
}
if fl == nil {
fl = &udpFlow{out: make(chan []byte, 256)}
r.flows[key] = fl
+30 -2
View File
@@ -4,6 +4,8 @@ import (
"context"
"encoding/json"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"time"
@@ -12,11 +14,15 @@ import (
// The daemon asks GitHub now and then whether a newer release exists, so that
// the status page can say so. It never downloads or installs anything.
const releasesAPI = "https://api.github.com/repos/holdmysocks/ps5-tailscale/releases/latest"
// A variable so that test builds can point it elsewhere (-ldflags -X).
var releasesAPI = "https://api.github.com/repos/holdmysocks/ps5-tailscale/releases/latest"
type releaseInfo struct {
Version string // without the leading "v"
URL string
// Assets maps the names of the release's files to where they are
// downloaded from.
Assets map[string]string
}
// parseVersion reads "v1.2.3" or "1.2.3-dev" as its three numbers.
@@ -72,11 +78,19 @@ func fetchLatestRelease(ctx context.Context, url string) (releaseInfo, error) {
var rel struct {
TagName string `json:"tag_name"`
HTMLURL string `json:"html_url"`
Assets []struct {
Name string `json:"name"`
URL string `json:"browser_download_url"`
} `json:"assets"`
}
if err := json.NewDecoder(resp.Body).Decode(&rel); err != nil {
return releaseInfo{}, err
}
return releaseInfo{Version: strings.TrimPrefix(rel.TagName, "v"), URL: rel.HTMLURL}, nil
info := releaseInfo{Version: strings.TrimPrefix(rel.TagName, "v"), URL: rel.HTMLURL, Assets: map[string]string{}}
for _, a := range rel.Assets {
info.Assets[a.Name] = a.URL
}
return info, nil
}
type httpStatusError struct{ status string }
@@ -122,6 +136,20 @@ func (d *daemon) watchForUpdates(ctx context.Context) {
}
if rel.Version != known && newerVersion(version, rel.Version) {
d.logf("a newer release is available: %s (running %s)", rel.Version, version)
d.notifyUpdate(rel.Version)
}
}
}
// updateNotifiedFile remembers the release the user has been told about on
// screen, so that each release is announced once and not after every start.
const updateNotifiedFile = "update-notified"
func (d *daemon) notifyUpdate(latest string) {
path := filepath.Join(dataDir, updateNotifiedFile)
if b, err := os.ReadFile(path); err == nil && strings.TrimSpace(string(b)) == latest {
return
}
notify("Tailscale for PS5 %s is available (this is %s).\nSee %s", latest, version, d.webURL())
os.WriteFile(path, []byte(latest+"\n"), 0o644)
}
+180
View File
@@ -0,0 +1,180 @@
package main
import (
"encoding/json"
"errors"
"fmt"
"io"
"net"
"net/http"
"strings"
)
// Waking a device on the console's home network.
//
// A sleeping PC cannot be reached over Tailscale: nothing on it is running.
// But the console sits on the same home network, and a Wake-on-LAN packet
// only has to come from there. So the status page, which can be opened from
// anywhere over the tailnet, gets a button that makes the console send one.
// wakeTarget is a device that can be woken.
type wakeTarget struct {
Name string `json:"name"`
MAC string `json:"mac"`
}
// parseMAC accepts the usual ways of writing a hardware address and returns
// it in the form aa:bb:cc:dd:ee:ff.
func parseMAC(s string) (net.HardwareAddr, error) {
s = strings.TrimSpace(s)
if len(s) == 12 && !strings.ContainsAny(s, ":-.") {
s = s[0:2] + ":" + s[2:4] + ":" + s[4:6] + ":" + s[6:8] + ":" + s[8:10] + ":" + s[10:12]
}
mac, err := net.ParseMAC(s)
if err != nil || len(mac) != 6 {
return nil, fmt.Errorf("%q is not a network card address (it looks like 00:11:22:AA:BB:CC)", s)
}
return mac, nil
}
func validateWake(list []wakeTarget) error {
for i := range list {
list[i].Name = strings.TrimSpace(list[i].Name)
mac, err := parseMAC(list[i].MAC)
if err != nil {
return err
}
list[i].MAC = mac.String()
if list[i].Name == "" {
list[i].Name = list[i].MAC
}
if len(list[i].Name) > 64 {
return errors.New("a name is too long")
}
}
return nil
}
// magicPacket is the Wake-on-LAN payload: six bytes of 0xff and the address
// sixteen times.
func magicPacket(mac net.HardwareAddr) []byte {
p := make([]byte, 0, 6+16*6)
for i := 0; i < 6; i++ {
p = append(p, 0xff)
}
for i := 0; i < 16; i++ {
p = append(p, mac...)
}
return p
}
// broadcastAddrs returns where to send a packet so that every device on the
// console's networks sees it: each network's own broadcast address, and the
// general one.
func broadcastAddrs() []net.IP {
list := []net.IP{net.IPv4bcast}
addrs, err := net.InterfaceAddrs()
if err != nil {
return list
}
for _, a := range addrs {
ipnet, ok := a.(*net.IPNet)
if !ok {
continue
}
ip := ipnet.IP.To4()
if ip == nil || ip.IsLoopback() || len(ipnet.Mask) != 4 {
continue
}
if ones, _ := ipnet.Mask.Size(); ones >= 31 {
continue
}
b := make(net.IP, 4)
for i := range b {
b[i] = ip[i] | ^ipnet.Mask[i]
}
list = append(list, b)
}
return list
}
// sendWake broadcasts the magic packet. It reports how many sends went out;
// there is no way to know whether the device heard it.
func sendWake(mac net.HardwareAddr) (sent int, err error) {
packet := magicPacket(mac)
var lastErr error
for _, ip := range broadcastAddrs() {
// Port 9 is the customary one; some network cards listen on 7.
for _, port := range []int{9, 7} {
c, err := net.DialUDP("udp4", nil, &net.UDPAddr{IP: ip, Port: port})
if err != nil {
lastErr = err
continue
}
if _, err := c.Write(packet); err != nil {
lastErr = err
} else {
sent++
}
c.Close()
}
}
if sent == 0 {
if lastErr == nil {
lastErr = errors.New("no network to send on")
}
return 0, lastErr
}
return sent, nil
}
// handleWakeList replaces the list of devices that can be woken.
func (d *daemon) handleWakeList(w http.ResponseWriter, r *http.Request) {
var list []wakeTarget
if err := json.NewDecoder(io.LimitReader(r.Body, 1<<16)).Decode(&list); err != nil {
http.Error(w, "bad request: "+err.Error(), http.StatusBadRequest)
return
}
if err := validateWake(list); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
d.mu.Lock()
d.cfg.Wake = list
cfg := d.cfg
d.mu.Unlock()
if err := saveConfig(d.cfgPath, cfg); err != nil {
d.logf("saving config: %v", err)
}
io.WriteString(w, "ok\n")
}
// handleWake sends the wake-up packet to one of the listed devices. Only
// listed devices: the page is not a tool for poking arbitrary addresses.
func (d *daemon) handleWake(w http.ResponseWriter, r *http.Request) {
mac, err := parseMAC(r.URL.Query().Get("mac"))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
d.mu.Lock()
name := ""
for _, t := range d.cfg.Wake {
if t.MAC == mac.String() {
name = t.Name
}
}
d.mu.Unlock()
if name == "" {
http.Error(w, "that device is not in the list; save it first", http.StatusNotFound)
return
}
sent, err := sendWake(mac)
if err != nil {
d.logf("wake %s: %v", name, err)
http.Error(w, "could not send the wake-up packet: "+err.Error(), http.StatusInternalServerError)
return
}
d.logf("wake-up packet sent to %s (%d sends)", name, sent)
io.WriteString(w, "Wake-up packet sent to "+name+". Give it half a minute.\n")
}
+190 -8
View File
@@ -1,13 +1,16 @@
package main
import (
"context"
_ "embed"
"encoding/json"
"fmt"
"io"
"net"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"time"
@@ -54,15 +57,32 @@ type statusInfo struct {
// SunshineHosts and Forwards describe the local forwards.
SunshineHosts []sunshineInfo `json:"sunshineHosts"`
Forwards []string `json:"forwards"`
// UserForwards are the forwards the user set up, as opposed to the ones
// that belong to a Sunshine host.
UserForwards []forwardRule `json:"userForwards"`
// Wake lists the devices the page can wake.
Wake []wakeTarget `json:"wake"`
// DNS says where the daemon looks names up.
DNS string `json:"dns,omitempty"`
// UDPPorts are the console's UDP ports reachable from the tailnet.
UDPPorts []uint16 `json:"udpPorts"`
Priority string `json:"priority"`
// PasswordSet says whether the page is password protected.
PasswordSet bool `json:"passwordSet"`
// AllowFrom is "all" or "own": which tailnet devices may connect.
AllowFrom string `json:"allowFrom"`
// KeyExpiry is when this console's Tailscale key expires, if it does.
KeyExpiry *time.Time `json:"keyExpiry,omitempty"`
// LatestVersion and UpdateURL are set when a newer release exists.
LatestVersion string `json:"latestVersion,omitempty"`
UpdateURL string `json:"updateURL,omitempty"`
Uptime int64 `json:"uptimeSeconds"`
// CanUpdate says that the newer release can be installed from the page;
// Update reports on an installation in progress.
CanUpdate bool `json:"canUpdate"`
// PayloadPath is the copy an update replaces as well, if one is set.
PayloadPath string `json:"payloadPath,omitempty"`
Update updateProgress `json:"update"`
Uptime int64 `json:"uptimeSeconds"`
}
// webHandler builds the status page and its API.
@@ -95,13 +115,22 @@ func (d *daemon) webHandler() http.Handler {
mux.HandleFunc("GET /api/logs", d.protect(d.handleLogs))
mux.HandleFunc("GET /qr.png", d.protect(d.handleQR))
mux.HandleFunc("GET /api/config", d.protect(d.handleGetConfig))
mux.HandleFunc("GET /api/files", d.protect(d.handleFiles))
mux.HandleFunc("GET /api/files/get", d.protect(d.handleFileGet))
mux.HandleFunc("GET /api/diagnostics", d.protect(d.handleDiagnostics))
for path, h := range map[string]http.HandlerFunc{
"/api/config": d.handleSetConfig,
"/api/login": d.handleLogin,
"/api/logout": d.handleLogout,
"/api/quit": d.handleQuit,
"/api/uninstall": d.handleUninstall,
"/api/sunshine": d.handleSunshine,
"/api/config": d.handleSetConfig,
"/api/login": d.handleLogin,
"/api/logout": d.handleLogout,
"/api/quit": d.handleQuit,
"/api/uninstall": d.handleUninstall,
"/api/sunshine": d.handleSunshine,
"/api/forwards": d.handleForwards,
"/api/pingpeer": d.handlePingPeer,
"/api/testtarget": d.handleTestTarget,
"/api/wakelist": d.handleWakeList,
"/api/wake": d.handleWake,
"/api/update": d.handleUpdate,
} {
mux.HandleFunc("POST "+path, d.protect(d.guard(h)))
}
@@ -137,7 +166,7 @@ func writeFileTail(w io.Writer, path string, max int64) {
if fi, err := f.Stat(); err == nil && fi.Size() > max {
f.Seek(fi.Size()-max, io.SeekStart)
}
io.Copy(w, f)
io.Copy(w, onlyReader{f}) // no sendfile, see sendToLoader
}
func (d *daemon) guard(h http.HandlerFunc) http.HandlerFunc {
@@ -176,6 +205,7 @@ func (d *daemon) handleStatus(w http.ResponseWriter, r *http.Request) {
Hostname: d.cfg.Hostname,
Proxy: d.cfg.HTTPProxyAddr,
Priority: priorityLow,
AllowFrom: accessAll,
PasswordSet: d.cfg.PasswordHash != "",
Uptime: int64(time.Since(d.started).Seconds()),
IPs: []string{},
@@ -185,12 +215,23 @@ func (d *daemon) handleStatus(w http.ResponseWriter, r *http.Request) {
if d.cfg.Priority == priorityHigh {
info.Priority = priorityHigh
}
if d.cfg.AllowFrom == accessOwn {
info.AllowFrom = accessOwn
}
info.UserForwards = append([]forwardRule{}, d.cfg.Forwards...)
info.Wake = append([]wakeTarget{}, d.cfg.Wake...)
for _, h := range d.cfg.SunshineHosts {
info.SunshineHosts = append(info.SunshineHosts, sunshineInfo{Host: h.Host, Port: h.basePort(), Address: h.clientAddress()})
}
if newerVersion(version, d.latest.Version) {
info.LatestVersion, info.UpdateURL = d.latest.Version, d.latest.URL
info.CanUpdate = canInstall(d.latest)
}
info.Update = d.update
if d.dns != nil {
info.DNS = d.dns.describe()
}
info.PayloadPath = d.cfg.PayloadPath
d.mu.Unlock()
info.UDPPorts = []uint16{}
if d.udp != nil {
@@ -219,6 +260,7 @@ func (d *daemon) handleStatus(w http.ResponseWriter, r *http.Request) {
for _, ip := range st.Self.TailscaleIPs {
info.IPs = append(info.IPs, ip.String())
}
info.KeyExpiry = st.Self.KeyExpiry
}
info.Peers, info.VPNServers = peersFromStatus(st, r.URL.Query().Get("vpn") == "1")
}
@@ -408,3 +450,143 @@ func stopRunningInstance(webAddr string) bool {
}
return true
}
// handleUpdate starts installing the newest release.
func (d *daemon) handleUpdate(w http.ResponseWriter, r *http.Request) {
if err := d.startUpdate(); err != nil {
http.Error(w, err.Error(), http.StatusConflict)
return
}
d.logf("update requested from the status page")
io.WriteString(w, "The update has started.\n")
}
// handleForwards replaces the user's local forwards: localhost ports on the
// console that lead to a device on the tailnet.
func (d *daemon) handleForwards(w http.ResponseWriter, r *http.Request) {
var rules []forwardRule
if err := json.NewDecoder(io.LimitReader(r.Body, 1<<16)).Decode(&rules); err != nil {
http.Error(w, "bad request: "+err.Error(), http.StatusBadRequest)
return
}
for i := range rules {
rules[i].Proto = strings.ToLower(strings.TrimSpace(rules[i].Proto))
rules[i].Listen = strings.TrimSpace(rules[i].Listen)
rules[i].Target = strings.TrimSpace(rules[i].Target)
}
if err := validateForwards(rules); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if rule, err := d.checkForwardPorts(rules); err != nil {
// The page picks the port on the console by itself, so tell it
// which one to pick again.
w.Header().Set("X-Port-Taken", rule.Proto+" "+rule.Listen)
http.Error(w, err.Error(), http.StatusConflict)
return
}
d.mu.Lock()
d.cfg.Forwards = rules
cfg := d.cfg
d.mu.Unlock()
if err := saveConfig(d.cfgPath, cfg); err != nil {
d.logf("saving config: %v", err)
}
d.logf("forwards set to %v", rules)
if err := d.fwd.set(d.localForwardRules()); err != nil {
// Typically a port on the console that is already in use.
http.Error(w, "saved, but not everything could be started: "+err.Error(), http.StatusConflict)
return
}
io.WriteString(w, "ok\n")
}
// checkForwardPorts refuses forwards whose port on the console already
// belongs to something else. On the PS5 a listener on 127.0.0.1 can be opened
// next to one on every address, and would then take the local connections
// away from it: a forward on the status page's port would cut the console's
// own browser off from the page.
func (d *daemon) checkForwardPorts(rules []forwardRule) (forwardRule, error) {
d.mu.Lock()
webPort, proxyPort := d.webPort, d.proxyPort
sunshine := sunshineRules(d.cfg.SunshineHosts)
d.mu.Unlock()
running := map[forwardRule]bool{}
for _, r := range d.fwd.rules() {
running[r] = true
}
for _, r := range rules {
_, portStr, _ := net.SplitHostPort(r.Listen)
port, _ := strconv.Atoi(portStr)
if r.Proto == "tcp" && (uint16(port) == webPort || (proxyPort != 0 && uint16(port) == proxyPort)) {
return r, fmt.Errorf("port %d on the console is used by this page or the HTTP proxy", port)
}
for _, s := range sunshine {
_, sp, _ := net.SplitHostPort(s.Listen)
if s.Proto == r.Proto && sp == portStr {
return r, fmt.Errorf("%s port %d on the console is used by game streaming", r.Proto, port)
}
}
if r.Proto != "tcp" || running[r] {
continue // one of ours already, or UDP, which cannot be probed
}
taken := false
for other := range running {
if other.Proto == "tcp" && other.Listen == r.Listen {
taken = true // the same local port, pointed somewhere else: ours to reuse
}
}
if taken {
continue
}
if c, err := net.DialTimeout("tcp", net.JoinHostPort("127.0.0.1", portStr), 500*time.Millisecond); err == nil {
c.Close()
return r, fmt.Errorf("port %d on the console is already in use by something else", port)
}
}
return forwardRule{}, nil
}
// handleTestTarget tries to open a TCP connection to a device and port on
// the tailnet, the way a forward would, and says whether it answered. It
// tells "the device is not reachable" apart from "nothing listens there".
func (d *daemon) handleTestTarget(w http.ResponseWriter, r *http.Request) {
target := strings.TrimSpace(r.URL.Query().Get("target"))
host, port, err := net.SplitHostPort(target)
if err != nil || host == "" || !validHostName(host) || !validPort(port) {
http.Error(w, "the target must be a device and a port", http.StatusBadRequest)
return
}
if d.srv == nil || d.lc == nil {
http.Error(w, "Tailscale is not running yet", http.StatusServiceUnavailable)
return
}
ctx, cancel := context.WithTimeout(r.Context(), 8*time.Second)
defer cancel()
start := time.Now()
c, err := d.dialTailnet(ctx, "tcp", target)
took := time.Since(start)
out := map[string]any{"ok": err == nil, "ms": float64(took.Microseconds()) / 1000}
if err != nil {
out["error"] = describeDialError(err)
} else {
c.Close()
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(out)
}
// describeDialError puts a failed connection attempt into words a user can
// act on.
func describeDialError(err error) string {
msg := err.Error()
switch {
case strings.Contains(msg, "connection refused"), strings.Contains(msg, "connection was refused"):
return "the device answered, but nothing listens on that port"
case strings.Contains(msg, "deadline exceeded"), strings.Contains(msg, "timeout"), strings.Contains(msg, "timed out"):
return "no answer: the device is off, asleep, or a firewall on it blocks the port"
case strings.Contains(msg, "no such host"), strings.Contains(msg, "lookup"), strings.Contains(msg, "not found"):
return "there is no device with that name on your tailnet"
}
return msg
}