if_shaper.h

linux得一些常用命令,以及linux环境下的c编程

#ifndef __LINUX_SHAPER_H
#define __LINUX_SHAPER_H

#ifdef __KERNEL__

#define SHAPER_QLEN	10
/*
 *	This is a bit speed dependent (read it shouldn't be a constant!)
 *
 *	5 is about right for 28.8 upwards. Below that double for every
 *	halving of speed or so. - ie about 20 for 9600 baud.
 */
#define SHAPER_LATENCY	(5*HZ)
#define SHAPER_MAXSLIP	2
#define SHAPER_BURST	(HZ/50)		/* Good for >128K then */

struct shaper
{
	struct sk_buff_head sendq;
	__u32 bytespertick;
	__u32 bitspersec;
	__u32 shapelatency;
	__u32 shapeclock;
	__u32 recovery;		/* Time we can next clock a packet out on
				   an empty queue */
        unsigned long locked;
        struct net_device_stats stats;
	struct net_device *dev;
	int  (*hard_start_xmit) (struct sk_buff *skb,
		struct net_device *dev);
	int  (*hard_header) (struct sk_buff *skb,
		struct net_device *dev,
		unsigned short type,
		void *daddr,
		void *saddr,
		unsigned len);
	int  (*rebuild_header)(struct sk_buff *skb);
	int (*hard_header_cache)(struct neighbour *neigh, struct hh_cache *hh);
	void (*header_cache_update)(struct hh_cache *hh, struct net_device *dev, unsigned char *  haddr);
	struct net_device_stats* (*get_stats)(struct net_device *dev);
	wait_queue_head_t  wait_queue;
	struct timer_list timer;
};

#endif

#define SHAPER_SET_DEV		0x0001
#define SHAPER_SET_SPEED	0x0002
#define SHAPER_GET_DEV		0x0003
#define SHAPER_GET_SPEED	0x0004

struct shaperconf
{
	__u16	ss_cmd;
	union
	{
		char 	ssu_name[14];
		__u32	ssu_speed;
	} ss_u;
#define ss_speed ss_u.ssu_speed
#define ss_name ss_u.ssu_name
};

#endif