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4.1 nf_hook_opsÊý¾Ý½á¹¹ netfilter.h
struct nf_hook_ops
{
struct list_head list; //Á´±í³ÉÔ±
/* User fills in from here down. */
nf_hookfn *hook; //¹³×Óº¯ÊýÖ¸Õë
struct module *owner;
int pf; //ÐÒé´Ø£¬¶ÔÓÚipv4¶øÑÔ£¬ÊÇPF_INET
int hooknum; //hookÀàÐÍ
/* Hooks are ordered in ascending priority. */
int priority; //ÓÅÏȼ¶
};
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