81 lines
2.7 KiB
C
Executable File
81 lines
2.7 KiB
C
Executable File
#include <linux/module.h>
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#include <linux/netlink.h>
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#include <linux/netfilter.h>
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#include <linux/ip.h>
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#include <uapi/linux/netfilter_ipv4.h>
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#include <uapi/linux/ip.h>
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#include <net/netlink.h>
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#include <net/net_namespace.h>
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struct pdeliv_debugfs {
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unsigned int rev_succ;
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unsigned int rev_fail;
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unsigned int pde_succ;
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unsigned int pde_fail;
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};
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struct netlinkk_cfg
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{
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struct netlink_kernel_cfg cfg;
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struct sock *sk; //内核端socket
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int user_pid;/*用户态pid*/
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unsigned int subscriptions;/*netlink总线，netlink协议号*/
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unsigned int groups;/*netlink 组播组*/
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struct pdeliv_debugfs pdeliv_dfs;
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};
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typedef int (*commnl_doit_func)(struct sk_buff *, struct nlmsghdr *);
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typedef int (*commnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
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typedef u16 (*commnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
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struct commnl_msgtype_process
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{
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int msgtype;
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commnl_doit_func doit;
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commnl_dumpit_func dumpit;
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commnl_calcit_func calcit;
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};
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extern void printk_mem(unsigned char * p,int len);
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extern void printk_ipaddress(unsigned int address);
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extern int pdeliv_msgtype_register( int msgtype,commnl_doit_func doit,
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commnl_dumpit_func dumpit,commnl_calcit_func calcit);
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/****************************************************************/
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/*函数功能：注册内核态配置接收消息处理函数。 */
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/*输入参数： */
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/*msgtype:注册的消息类型。*/
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/*doit:对应的消息接收处理函数；*/
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/*dumpit,calcit:框架预留接口，暂未使用。填NULL.*/
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/*输出参数: WU */
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/*返回值：0注册成功；< 0,失败 */
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/****************************************************************/
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extern int cfg_msgtype_register( int msgtype,commnl_doit_func doit,
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commnl_dumpit_func dumpit,commnl_calcit_func calcit);
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extern int cfg_msgtype_unregister(int msgtype);
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extern int pdeliv_msgtype_unregister(int msgtype);
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/****************************************************************/
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/*函数功能：在内核态创建报文上送通道，上送的 */
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/*报文内容从链路层头开始。一个netlink协议号只能创建一个通道。 */
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/*输入参数：g_nlcfg */
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/*输出参数: struct upmnl_handle * upmh ,存放创建的通道相关信息。*/
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/*返回值：0通道创建成果；< 0,失败 */
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/****************************************************************/
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extern int libnetlinkk_init_byproto(struct netlinkk_cfg *g_nlcfg);
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extern void libnetlinkk_exit(struct netlinkk_cfg *g_nlcfg);
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extern int commnl_unicast(struct sock *sk, struct sk_buff *skb, u32 portid);
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