lib

README

Embedded WAF libraries

This directory contains Datadog's WAF static libraries taken from the releases of https://github.com/DataDog/libddwaf

Updating

From the root of the repository, run:

./_tools/libddwaf-updater/update.sh
Will upgrade from v1.14.0 to v1.15.0
... downloaded <repo-root>/Datadog/go-libddwaf/include/ddwaf.h
... downloaded <repo-root>/Datadog/go-libddwaf/lib/darwin-arm64/libddwaf.dylib
... downloaded <repo-root>/Datadog/go-libddwaf/lib/darwin-amd64/libddwaf.dylib
... downloaded <repo-root>/Datadog/go-libddwaf/lib/linux-arm64/libddwaf.so
... downloaded <repo-root>/Datadog/go-libddwaf/lib/linux-amd64/libddwaf.so
... downloaded <repo-root>/Datadog/go-libddwaf/lib/linux-armv7/libddwaf.so
... downloaded <repo-root>/Datadog/go-libddwaf/lib/linux-i386/libddwaf.so
All done! Don't forget to check in changes to include/ and lib/, check the libddwaf upgrade guide to update bindings!

Documentation

Overview

Package lib provides a built-in WAF library version for the relevant runtime platform.

Index

• Variables
• func DumpEmbeddedWAF() (path string, closer func() error, err error)

Variables

var EmbeddedWAFVersion string

Functions

func DumpEmbeddedWAF

func DumpEmbeddedWAF() (path string, closer func() error, err error)

DumpEmbeddedWAF for linux systems. It creates a memfd and writes the embedded WAF library to it. Then it returns the path the /proc/self/fd/<fd> path to the file. This trick makes us able to load the library without having to write it to disk. Hence, making go-libddwaf work on full read-only filesystems.