Currently viewing the category: "libnetfilter_queue"

How to Build and Use libnetfilter_queue for Android

By On December 1, 2011 · 2 Comments

If you’re looking for general information about how to use libnetfilter_queue for Linux, please refer here.

0. Preparation
First, you’ll need to check if your Android system kernel is compiled with support for libentfilter_queue. Follow the following steps,

Connect your android device to your computer. Enter command “adb pull /proc/config.gz” to get the config.gz [...]

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How to Configure, Install and Use libnefilter_queue on Linux

By On December 1, 2011 · 8 Comments

According to libnetfilter_queue home page, libnetfilter_queue is a userspace library that allows one to retrieve and manipulate the packets that have been queued by kernel packet filter. It is supposed to replace the old ip_queue/libipq mechanism.
0. Dependencies
libnetfilter_queue requires a kernel that includes nfnetlink_queue subsystem. If you Linux kernel is 2.6.14 or later, [...]

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How to Calculate IP/TCP/UDP Checksum–Part 3 Usage Example and Validation

By On November 27, 2011 · 2 Comments

This is a follow up of the previous post IP/TCP/UDP Checksum Calculation part 1 theory, and part 2 implementation.

This post gives an example using libnetfiler_queue library and the checksum code we implemented in part 2 to illustrate how to use the checksum code and verify that our code [...]

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