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Refer:skb_trim() – remove end from a buffer ↗ And here is the copy paste of skb_trim() API (/net/core/skbuff.c) from the Kernel-source version 6.5.8 for quick reference: Which points to __skb_trim()…
Refer:skb_push() – add data to the start of a buffer ↗ And here is the copy paste of skb_push() API (/net/core/skbuff.c) from the Kernel-source version 6.5.8 for quick reference:
https://youtu.be/JnSLd2B1d9E
https://youtu.be/zNg9PQ0xhAU
https://youtu.be/ZHeznKfE8CE
https://youtu.be/-4gWnSQ6Ybo
https://youtu.be/sWsKh1FeA0k
Refer:struct sk_buff data-structure ↗struct sk_buff APIs ↗Linux Kernel Networking subsystem ↗ And here is the copy paste of struct sk_buff data-structure (/include/linux/skbuff.h) from the Kernel-source version 4.13 for quick reference:
struct sk_buff is the Linux Kernel Networking sub-system data-structure in which the contents of individual network packets and its corresponding metadata (port details, socket details, protocol, etc) is stored. It…
When you work on Network Namespaces (which is a feature Linux Kernel provides), you usually create bunch of virtual ethernet ports called as veth interfaces. The veth interface itself is…
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