187 lines
5.6 KiB
Markdown
187 lines
5.6 KiB
Markdown
# wayvnc
|
|
|
|
[](https://github.com/any1/wayvnc/actions/workflows/build.yml)
|
|
[](https://builds.sr.ht/~andri/wayvnc/commits/master?)
|
|
[](https://repology.org/project/wayvnc/versions)
|
|
|
|
## Introduction
|
|
This is a VNC server for wlroots-based Wayland compositors (:no_entry: Gnome,
|
|
KDE and Weston are **not** supported). It attaches to a running Wayland session,
|
|
creates virtual input devices, and exposes a single display via the RFB
|
|
protocol. The Wayland session may be a headless one, so it is also possible
|
|
to run wayvnc without a physical display attached.
|
|
|
|
Please check the [FAQ](FAQ.md) for answers to common questions. For further
|
|
support, join the #wayvnc IRC channel on libera.chat, or ask your questions on the
|
|
GitHub [discussion forum](https://github.com/any1/wayvnc/discussions) for the
|
|
project.
|
|
|
|
## Building
|
|
### Runtime Dependencies
|
|
* aml
|
|
* drm
|
|
* gbm (optional)
|
|
* libxkbcommon
|
|
* neatvnc
|
|
* pam (optional)
|
|
* pixman
|
|
* jansson
|
|
|
|
### Build Dependencies
|
|
* GCC
|
|
* meson
|
|
* ninja
|
|
* pkg-config
|
|
|
|
#### For Arch Linux
|
|
```
|
|
pacman -S base-devel libglvnd libxkbcommon pixman gnutls jansson
|
|
```
|
|
|
|
#### For Fedora 37
|
|
```
|
|
dnf install -y meson gcc ninja-build pkg-config egl-wayland egl-wayland-devel \
|
|
mesa-libEGL-devel mesa-libEGL libwayland-egl libglvnd-devel \
|
|
libglvnd-core-devel libglvnd mesa-libGLES-devel mesa-libGLES \
|
|
libxkbcommon-devel libxkbcommon libwayland-client \
|
|
pam-devel pixman-devel libgbm-devel libdrm-devel scdoc \
|
|
libavcodec-free-devel libavfilter-free-devel libavutil-free-devel \
|
|
turbojpeg-devel wayland-devel gnutls-devel jansson-devel
|
|
```
|
|
|
|
#### For Debian (unstable / testing)
|
|
```
|
|
apt build-dep wayvnc
|
|
```
|
|
|
|
#### For Ubuntu
|
|
```
|
|
apt install meson libdrm-dev libxkbcommon-dev libwlroots-dev libjansson-dev \
|
|
libpam0g-dev libgnutls28-dev libavfilter-dev libavcodec-dev \
|
|
libavutil-dev libturbojpeg0-dev scdoc
|
|
```
|
|
|
|
#### Additional build-time dependencies
|
|
|
|
The easiest way to satisfy the neatvnc and aml dependencies is to link to them
|
|
in the subprojects directory:
|
|
```
|
|
git clone https://github.com/any1/wayvnc.git
|
|
git clone https://github.com/any1/neatvnc.git
|
|
git clone https://github.com/any1/aml.git
|
|
|
|
mkdir wayvnc/subprojects
|
|
cd wayvnc/subprojects
|
|
ln -s ../../neatvnc .
|
|
ln -s ../../aml .
|
|
cd -
|
|
|
|
mkdir neatvnc/subprojects
|
|
cd neatvnc/subprojects
|
|
ln -s ../../aml .
|
|
cd -
|
|
```
|
|
|
|
### Configure and Build
|
|
```
|
|
meson build
|
|
ninja -C build
|
|
```
|
|
|
|
To run the unit tests:
|
|
```
|
|
meson test -C build
|
|
```
|
|
|
|
To run the [integration tests](test/integration/README.md):
|
|
```
|
|
./test/integration/integration.sh
|
|
```
|
|
|
|
## Running
|
|
Wayvnc can be run from the build directory like so:
|
|
```
|
|
./build/wayvnc
|
|
```
|
|
|
|
:radioactive: The server only accepts connections from localhost by default. To
|
|
accept connections via any interface, set the address to `0.0.0.0` like this:
|
|
```
|
|
./build/wayvnc 0.0.0.0
|
|
```
|
|
|
|
:warning: Do not do this on a public network or the internet without
|
|
user authentication enabled. The best way to protect your VNC connection is to
|
|
use SSH tunneling while listening on localhost, but users can also be
|
|
authenticated when connecting to wayvnc.
|
|
|
|
### Encryption & Authentication
|
|
|
|
#### VeNCrypt (TLS)
|
|
For TLS, you'll need a private X509 key and a certificate. A self-signed key
|
|
with a certificate can be generated like so:
|
|
```
|
|
openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes \
|
|
-keyout key.pem -out cert.pem -subj /CN=localhost \
|
|
-addext subjectAltName=DNS:localhost,DNS:localhost,IP:127.0.0.1
|
|
```
|
|
Replace `localhost` and `127.0.0.1` in the command above with your public facing
|
|
host name and IP address, respectively, or just keep them as is if you're
|
|
testing locally.
|
|
|
|
Create a config with the authentication info and load it using the `--config`
|
|
command line option or place it at the default location
|
|
`$HOME/.config/wayvnc/config`.
|
|
```
|
|
address=0.0.0.0
|
|
enable_auth=true
|
|
username=luser
|
|
password=p455w0rd
|
|
private_key_file=/path/to/key.pem
|
|
certificate_file=/path/to/cert.pem
|
|
```
|
|
|
|
#### RSA-AES
|
|
The RSA-AES security type combines RSA with AES in EAX mode to provide secure
|
|
authentication and encryption that's resilient to eavesdropping and MITM. Its
|
|
main weakness is that the user has to verify the server's credentials on first
|
|
use. Thereafter, the client software should warn the user if the server's
|
|
credentials change. It's a Trust on First Use (TOFU) scheme as employed by SSH.
|
|
|
|
For the RSA-AES to be enabled, you need to generate an RSA key. This can be
|
|
achieved like so:
|
|
```
|
|
ssh-keygen -m pem -f ~/.config/wayvnc/rsa_key.pem -t rsa -N ""
|
|
```
|
|
|
|
You also need to tell wayvnc where this file is located, by setting setting the
|
|
`rsa_private_key_file` configuration parameter:
|
|
```
|
|
address=0.0.0.0
|
|
enable_auth=true
|
|
username=luser
|
|
password=p455w0rd
|
|
rsa_private_key_file=/path/to/rsa_key.pem
|
|
```
|
|
|
|
You may also add credentials for TLS in combination with RSA. The client will
|
|
choose.
|
|
|
|
### wayvncctl control socket
|
|
|
|
To facilitate runtime interaction and control, wayvnc opens a unix domain socket
|
|
at *$XDG_RUNTIME_DIR*/wayvncctl (or a fallback of /tmp/wayvncctl-*$UID*). A
|
|
client can connect and exchange json-formatted IPC messages to query and control
|
|
the running wayvnc instance.
|
|
|
|
Use the `wayvncctl` utility to interact with this control socket from the
|
|
command line.
|
|
|
|
See the `wayvnc(1)` manpage for an in-depth description of the IPC protocol and
|
|
the available commands, and `wayvncctl(1)` for more on the command line
|
|
interface.
|
|
|
|
There is also a handy event-loop mode that can be used to run commands when
|
|
various events occur in wayvnc. See
|
|
[examples/event-watcher](examples/event-watcher) for more details.
|