a Linux and Tech Youtube Channel for advance Linux users, systems and network software programmers and tech enthusiasts
A typical IPv4 header is fixed in length. However there is a provision to add extra dynamically sized IP Options header used for Network testing and debugging. Although it is…
Network_data_flow_through_kernel - here is a detailed IPv4 Network API and data-structure API Map originally published in Linux Foundation Wiki
dst_entry() is one of the important Linux Kernel Networking subsystem data-structure which is used while navigating the packet flow within the IPv4 stack. It contains function pointers one for input…
As I discussed in various episodes and articles in the past there are various ways via which you can communicate from Kernel space to User space and vice-versa. Some of…
The Linux kernel is the backbone of the Linux operating system. A device tree is a hierarchical tree structure that describes the various devices that are present in a system,…
https://youtu.be/97sYhGa7yfE
https://youtu.be/fMctLB-CfRI
Here is my multi-episode video series on evaluation of Rockchip ROC-RK3566-PC from Firefly with stock OpenWRT firmware.
https://youtu.be/RNXtPi13Ne0 https://youtu.be/JnfQ-zNorFw
Refer:int ip_local_deliver(struct sk_buff *skb) ↗static inline bool ip_is_fragment(const struct iphdr *iph) ↗int ip_defrag(struct net *net, struct sk_buff *skb, u32 user) ↗static int ip_finish_output(struct net *net, struct sock *sk, struct sk_buff…
https://youtu.be/zjX--uUbA6o
/sysfs is one of the most popular kernel to user-space interface which you can leverage to add an interface to your Kernel code such as Kernel modules, Kernel Device Drivers,…
One of the important aspects a beginner who is into Linux Kernel space systems software development has to understand is that unlike user-space C/C++ programming, where you can freely include…
https://youtu.be/MVRnK7h1-rE
Here is the source code discussed in this video episode Refer:Linux Kernel Source – Documentation/networking/tuntap.txt – Universal TUN/TAP device driver ↗Wiki TUN/TAP ↗
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