Compilation

[ring-c]

Hi.
Trying to follow this instruction: https://github.com/evilsocket/opensnitch/wiki/Compilation

sudo apt-get install git golang libnetfilter-queue-dev libpcap-dev protobuf-compiler python3-pip pyqt5-dev-tools qttools5-dev-tools qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools python-pyqt5.qtsql python3-notify2

1. We dont need to install golang, we have a note Make sure you have a correctly configured Go >= 1.15 environment. Installing go this way may brake existing go setup.
2. Note suggests Go >= 1.15 but daemon/go.mod says go 1.14
3. There package missing in debian testing (bookworm): python-pyqt5.qtsql, it exists as python3-pyqt5.qtsql

What I suggest:

sudo apt install git libnetfilter-queue-dev libpcap-dev protobuf-compiler python3-pip pyqt5-dev-tools qttools5-dev-tools qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools python3-pyqt5.qtsql python3-notify2

Next:

python3 -m pip install --user grpcio-tools qt-material

On fresh debian install gives me:

error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
    python3-xyz, where xyz is the package you are trying to
    install.
    
    If you wish to install a non-Debian-packaged Python package,
    create a virtual environment using python3 -m venv path/to/venv.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
    sure you have python3-full installed.
    
    If you wish to install a non-Debian packaged Python application,
    it may be easiest to use pipx install xyz, which will manage a
    virtual environment for you. Make sure you have pipx installed.
    
    See /usr/share/doc/python3.11/README.venv for more information.

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.

I installed by venv way, error is gone, but this error will brake make later.

After that:

# make
go: github.com/evilsocket/[email protected]: missing go.sum entry; to add it:
	go mod download github.com/evilsocket/ftrace
go: github.com/evilsocket/[email protected]: missing go.sum entry; to add it:
	go mod download github.com/evilsocket/ftrace
make: *** [Makefile:12: opensnitchd] Error 1

There is no go.sum in daemon at all, so we will get errors for all dependencies.
After go mod tidy in daemon there is two dependencies removed:

github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444 // indirect

And my IDE suggest that two dependencies is vurnerable:

golang.org/x/net v0.0.0-20180417003750-8d16fa6dc9a8
golang.org/x/text v0.3.0 // indirect

I think it will be a good idea to update dependencies.
After that:

make[2]: Entering directory '/home/user/code/ring-c/opensnitch/ui/i18n'
/usr/lib/python3/dist-packages/PyQt5/pylupdate_main.py:73: DeprecationWarning: Use setlocale(), getencoding() and getlocale() instead
  encoding = locale.getdefaultlocale()[1]

And I get a error: externally-managed-environment again.
I can make a PR for go and wiki stuff, but what to do with python errors?

[gustavo-iniguez-goya]

Hi @ring-c ,

The compilation instructions are not tied to a specific distribution. As stated below the title: (tested on Debian Sid and Ubuntu 18 and 20. It may fail on other distributions.)

By compiling the project I'd assume that you know what you're doing.

I don't understand the point 1), what do you mean by "We dont need to install golang" ?
2) we should even be able to compile with Go 1.13 as far as I can remember.
Point 3) fixed, my fault, sorry O:)

python3 -m pip install --user grpcio-tools qt-material

That step is optional on Debian >= Bullseye. You can install python3-grpcio and python3-protobuf. However some distributions didn't package those libs, so that's why it was added to the wiki.
Nowadays I think most distros I've tried package them already, so we can move the pip3 command to a note.

Regarding the warning, it's a policy change that have been recently added: https://www.omgubuntu.co.uk/2023/04/pip-install-error-externally-managed-environment-fix

go mod download github.com/evilsocket/ftrace

We removed that dependency some months ago. We don't use it anymore. On Debian Sid it compiles just fine :)