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kernel/linux-imx6_3.14.28/include/linux/mroute.h 2.59 KB
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  #ifndef __LINUX_MROUTE_H
  #define __LINUX_MROUTE_H
  
  #include <linux/in.h>
  #include <linux/pim.h>
  #include <net/sock.h>
  #include <uapi/linux/mroute.h>
  
  #ifdef CONFIG_IP_MROUTE
  static inline int ip_mroute_opt(int opt)
  {
  	return (opt >= MRT_BASE) && (opt <= MRT_MAX);
  }
  #else
  static inline int ip_mroute_opt(int opt)
  {
  	return 0;
  }
  #endif
  
  #ifdef CONFIG_IP_MROUTE
  extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
  extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
  extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
  extern int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
  extern int ip_mr_init(void);
  #else
  static inline
  int ip_mroute_setsockopt(struct sock *sock,
  			 int optname, char __user *optval, unsigned int optlen)
  {
  	return -ENOPROTOOPT;
  }
  
  static inline
  int ip_mroute_getsockopt(struct sock *sock,
  			 int optname, char __user *optval, int __user *optlen)
  {
  	return -ENOPROTOOPT;
  }
  
  static inline
  int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
  {
  	return -ENOIOCTLCMD;
  }
  
  static inline int ip_mr_init(void)
  {
  	return 0;
  }
  #endif
  
  struct vif_device {
  	struct net_device 	*dev;			/* Device we are using */
  	unsigned long	bytes_in,bytes_out;
  	unsigned long	pkt_in,pkt_out;		/* Statistics 			*/
  	unsigned long	rate_limit;		/* Traffic shaping (NI) 	*/
  	unsigned char	threshold;		/* TTL threshold 		*/
  	unsigned short	flags;			/* Control flags 		*/
  	__be32		local,remote;		/* Addresses(remote for tunnels)*/
  	int		link;			/* Physical interface index	*/
  };
  
  #define VIFF_STATIC 0x8000
  
  struct mfc_cache {
  	struct list_head list;
  	__be32 mfc_mcastgrp;			/* Group the entry belongs to 	*/
  	__be32 mfc_origin;			/* Source of packet 		*/
  	vifi_t mfc_parent;			/* Source interface		*/
  	int mfc_flags;				/* Flags on line		*/
  
  	union {
  		struct {
  			unsigned long expires;
  			struct sk_buff_head unresolved;	/* Unresolved buffers		*/
  		} unres;
  		struct {
  			unsigned long last_assert;
  			int minvif;
  			int maxvif;
  			unsigned long bytes;
  			unsigned long pkt;
  			unsigned long wrong_if;
  			unsigned char ttls[MAXVIFS];	/* TTL thresholds		*/
  		} res;
  	} mfc_un;
  	struct rcu_head	rcu;
  };
  
  #define MFC_STATIC		1
  #define MFC_NOTIFY		2
  
  #define MFC_LINES		64
  
  #ifdef __BIG_ENDIAN
  #define MFC_HASH(a,b)	(((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
  #else
  #define MFC_HASH(a,b)	((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
  #endif		
  
  struct rtmsg;
  extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
  			  __be32 saddr, __be32 daddr,
  			  struct rtmsg *rtm, int nowait);
  #endif