Web但上面sk_buff结构体是内核2.6.xx.xx比较前的版本的,我现在用的是:内核2.6.32.63版本的。sk_buff结构中没有list这个成员了。 sk_buff结构体数据区: sk_buff结构体只是网络数据包中的一些配置,真正包含传输内容和传输协议的都是在sk_buff结构体中几个指针所指向的 ... WebJul 4, 2024 · 如注释所说,它是对 struct sk_buff 的 用户可访问字段 的镜像。 BPF 程序中对 struct __sk_buff 字段的访问,将会被 BPF 校验器转换成对相应的 struct sk_buff 字段的访问 。 为什么要多引入这一层封装 ,见 bpf: allow extended BPF programs access skb fields。 …
struct sk_buff 结构 - 00奋斗00 - 博客园
WebMay 20, 2024 · struct sk_buff *skb_get(struct sk_buff *skb) +Increments the skb’s usage count by one and returns a pointer to it. struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask) +This function clones a skb. Both copies share the packet data but have their own struct sk_buff. The new copy is not owned by any socket, reference count is 1. driving licence online application ahmedabad
Linux 内核网络协议栈入门浅析 - 掘金 - 稀土掘金
WebJul 19, 2016 · sk_buff. All network-related queues and buffers in the kernel use a common data structure, struct sk_buff. This is a large struct containing all the control information required for the packet (datagram, cell, whatever). The sk_buff elements are organized as a doubly linked list, in such a way that it is very efficient to move an sk_buff ... Webskbuff.h - include/linux/skbuff.h - Linux source code (v6.2.7) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other … Webconst struct sk_buff_head *list_ list to peek at. Peek an sk_buff. Unlike most other operations you _MUST_ be careful with this one. A peek leaves the buffer on the list and someone else may run off with it. You must hold the appropriate locks or have a private queue to do this. Returns NULL for an empty list or a pointer to the head element ... driving licence over 70\u0027s