site stats

Struct sk_buff 头文件

WebIt will be set to the current chain by tc * and read by ovs to recirc_id. */ struct tc_skb_ext {__u32 chain; __u16 mru; __u16 zone; u8 post_ct: 1; u8 post_ct_snat: 1; u8 post_ct_dnat: 1;}; #endif struct sk_buff_head {/* These two members must be first to match sk_buff. */ struct_group_tagged (sk_buff_list, list, struct sk_buff * next; struct sk ... Webstruct sk_buff. 一个封包就存在这里，所有网络分层会使用这个结构来储存其报头、有关用户数据的信息，以及用来协调其工作的其他内部信息。 struct net_device. 每种网络设备都用这个数据结构表示，包括软硬件的配置信息 …

Linux内核中sk_buff结构详解 - 简书

WebAug 15, 2024 · For struct __sk_buff, eBPF verifier converts it to struct sk_buff transparently when you load your eBPF program, this is why there is no difference for eBPF programmers. eBPF programs only see ... Webstruct sk_buff可能是linux网络代码中最重要的数据结构，它表示接收或发送数据包的包头信息，并包含很多成员变量供网络代码中的各子系统使用。. 这个结构被网络的不同层 … biolithic corporation https://northernrag.com

struct sk_buff — The Linux Kernel documentation

WebApr 12, 2024 · return tcf_exts_exec(skb, &f->exts, res); } static inline int tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts, struct tcf_result *res) { #ifdef CONFIG_NET_CLS_ACT return tcf_action_exec(skb, exts->actions, exts->nr_actions, res); #endif return TC_ACT_OK; } If tcf_exts_destroy() is called while another thread is inside tcf_action_exec ... WebOct 17, 2024 · Struct sk_buff is a famous Linux kernel structure that holds network packets (with all headers) during travel through the Linux network stack. As you probably know, sk_buff contains a few pointers representing different regions in the one memory that contains all data of the packet. Pointers ‘ data ‘ and ‘ tail ‘ may be changed on ... WebMay 16, 2024 · sk_buff组织结构 struct sk_buff *next; struct sk_buff *prev 这两个成员很好理解，就是sk_buff是以双向链表来组织的. 为了快速地从整个链表的头部找到每个sk_buff，在第一个sk_buff前面会插入一个辅助的头结点： biolithe

Linux协议栈(4)——sk_buff及代码-阿里云开发者社区

Category:linux/skbuff.h at master · torvalds/linux · GitHub

Tags:Struct sk_buff 头文件

Struct sk_buff 头文件

Linux协议栈(4)——sk_buff及代码-阿里云开发者社区

WebFrom: Simon Horman To: Julian Anastasov Cc: Pablo Neira Ayuso , Jozsef Kadlecsik , Florian Westphal , [email protected], "David S. Miller" , David Ahern , Eric Dumazet , Jakub … 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 ...

Struct sk_buff 头文件

Did you know?

WebAll the data is held in associated buffers. *. * &sk_buff.head points to the main "head" buffer. The head buffer is divided. * into two parts: *. * - data buffer, containing headers and sometimes payload; * this is the part of the skb operated on by the common helpers. * such as skb_put () or skb_pull (); WebMay 25, 2016 · 非常详细的详谈struct sk_buff. 注：本文大部分内容来源于网络收集加上自己理解，如有不托之处，请指出, 本人无任何版权 ！. 全称socket buffers，简称skb，中文名字叫套接字缓存。. 它作为网络数据包的存放地点，使得协议栈中每个层都可以对数据进行操 …

WebAug 30, 2015 · EDIT2: So I am giving this function the original sk_buff caught by net_filter and the appropriate net_device I tried to follow what you said and read a little guide about the functions for the sK_buff. Still, when I dev_queue_xmit() the returned sk_buff of this function, I get a complete kernel crash.

WebWhen a clone of an SKB is made, all of the 'struct sk_buff' structure members of the clone are private to the clone. The data, however, is shared between the primary SKB and it's clone. When an SKB is cloned, the 'cloned' field will be set in both the primary and clone SKB. Otherwise is will be zero. WebThis first diagram illustrates the layout of the SKB data area and where in that area the various pointers in 'struct sk_buff' point. The rest of this page will walk through what the SKB data area looks like in a newly allocated …

WebMar 18, 2024 · sk_buff结构可能是网络代码中最重要的数据结构。代表已接收或正要传输的数据报。定义在include/linux/skbuff.h头文件中。由变量堆（heap）组成。用于管理网络数 …

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 ... daily mail newspaper uk online today newsWebsk_buff 其他字段 *struct sock sk. 一个指向 sock 数据结构的指针，表示 sock 对应 socket 拥有这个 sk_buff。当数据是由本地进程生成或接收时需要这个指针，因为数据和 socket相 … biolithoWebMay 15, 2024 · sk_buff是Linux网络中最核心的结构体，它用来管理和控制接收或发送数据包的信息。. 各层协议都依赖于sk_buff而存在。. 内核中sk_buff结构体在各层协议之间传输 … biolit hepatobiol