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kernel/linux-imx6_3.14.28/include/uapi/linux/mroute.h 4.13 KB
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  #ifndef _UAPI__LINUX_MROUTE_H
  #define _UAPI__LINUX_MROUTE_H
  
  #include <linux/sockios.h>
  #include <linux/types.h>
  
  /*
   *	Based on the MROUTING 3.5 defines primarily to keep
   *	source compatibility with BSD.
   *
   *	See the mrouted code for the original history.
   *
   *      Protocol Independent Multicast (PIM) data structures included
   *      Carlos Picoto (cap@di.fc.ul.pt)
   *
   */
  
  #define MRT_BASE	200
  #define MRT_INIT	(MRT_BASE)	/* Activate the kernel mroute code 	*/
  #define MRT_DONE	(MRT_BASE+1)	/* Shutdown the kernel mroute		*/
  #define MRT_ADD_VIF	(MRT_BASE+2)	/* Add a virtual interface		*/
  #define MRT_DEL_VIF	(MRT_BASE+3)	/* Delete a virtual interface		*/
  #define MRT_ADD_MFC	(MRT_BASE+4)	/* Add a multicast forwarding entry	*/
  #define MRT_DEL_MFC	(MRT_BASE+5)	/* Delete a multicast forwarding entry	*/
  #define MRT_VERSION	(MRT_BASE+6)	/* Get the kernel multicast version	*/
  #define MRT_ASSERT	(MRT_BASE+7)	/* Activate PIM assert mode		*/
  #define MRT_PIM		(MRT_BASE+8)	/* enable PIM code			*/
  #define MRT_TABLE	(MRT_BASE+9)	/* Specify mroute table ID		*/
  #define MRT_ADD_MFC_PROXY	(MRT_BASE+10)	/* Add a (*,*|G) mfc entry	*/
  #define MRT_DEL_MFC_PROXY	(MRT_BASE+11)	/* Del a (*,*|G) mfc entry	*/
  #define MRT_MAX		(MRT_BASE+11)
  
  #define SIOCGETVIFCNT	SIOCPROTOPRIVATE	/* IP protocol privates */
  #define SIOCGETSGCNT	(SIOCPROTOPRIVATE+1)
  #define SIOCGETRPF	(SIOCPROTOPRIVATE+2)
  
  #define MAXVIFS		32	
  typedef unsigned long vifbitmap_t;	/* User mode code depends on this lot */
  typedef unsigned short vifi_t;
  #define ALL_VIFS	((vifi_t)(-1))
  
  /*
   *	Same idea as select
   */
   
  #define VIFM_SET(n,m)	((m)|=(1<<(n)))
  #define VIFM_CLR(n,m)	((m)&=~(1<<(n)))
  #define VIFM_ISSET(n,m)	((m)&(1<<(n)))
  #define VIFM_CLRALL(m)	((m)=0)
  #define VIFM_COPY(mfrom,mto)	((mto)=(mfrom))
  #define VIFM_SAME(m1,m2)	((m1)==(m2))
  
  /*
   *	Passed by mrouted for an MRT_ADD_VIF - again we use the
   *	mrouted 3.6 structures for compatibility
   */
   
  struct vifctl {
  	vifi_t	vifc_vifi;		/* Index of VIF */
  	unsigned char vifc_flags;	/* VIFF_ flags */
  	unsigned char vifc_threshold;	/* ttl limit */
  	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
  	union {
  		struct in_addr vifc_lcl_addr;     /* Local interface address */
  		int            vifc_lcl_ifindex;  /* Local interface index   */
  	};
  	struct in_addr vifc_rmt_addr;	/* IPIP tunnel addr */
  };
  
  #define VIFF_TUNNEL		0x1	/* IPIP tunnel */
  #define VIFF_SRCRT		0x2	/* NI */
  #define VIFF_REGISTER		0x4	/* register vif	*/
  #define VIFF_USE_IFINDEX	0x8	/* use vifc_lcl_ifindex instead of
  					   vifc_lcl_addr to find an interface */
  
  /*
   *	Cache manipulation structures for mrouted and PIMd
   */
   
  struct mfcctl {
  	struct in_addr mfcc_origin;		/* Origin of mcast	*/
  	struct in_addr mfcc_mcastgrp;		/* Group in question	*/
  	vifi_t	mfcc_parent;			/* Where it arrived	*/
  	unsigned char mfcc_ttls[MAXVIFS];	/* Where it is going	*/
  	unsigned int mfcc_pkt_cnt;		/* pkt count for src-grp */
  	unsigned int mfcc_byte_cnt;
  	unsigned int mfcc_wrong_if;
  	int	     mfcc_expire;
  };
  
  /* 
   *	Group count retrieval for mrouted
   */
   
  struct sioc_sg_req {
  	struct in_addr src;
  	struct in_addr grp;
  	unsigned long pktcnt;
  	unsigned long bytecnt;
  	unsigned long wrong_if;
  };
  
  /*
   *	To get vif packet counts
   */
  
  struct sioc_vif_req {
  	vifi_t	vifi;		/* Which iface */
  	unsigned long icount;	/* In packets */
  	unsigned long ocount;	/* Out packets */
  	unsigned long ibytes;	/* In bytes */
  	unsigned long obytes;	/* Out bytes */
  };
  
  /*
   *	This is the format the mroute daemon expects to see IGMP control
   *	data. Magically happens to be like an IP packet as per the original
   */
   
  struct igmpmsg {
  	__u32 unused1,unused2;
  	unsigned char im_msgtype;		/* What is this */
  	unsigned char im_mbz;			/* Must be zero */
  	unsigned char im_vif;			/* Interface (this ought to be a vifi_t!) */
  	unsigned char unused3;
  	struct in_addr im_src,im_dst;
  };
  
  /*
   *	That's all usermode folks
   */
  
  
  
  #define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
  
  /*
   *	Pseudo messages used by mrouted
   */
  
  #define IGMPMSG_NOCACHE		1		/* Kern cache fill request to mrouted */
  #define IGMPMSG_WRONGVIF	2		/* For PIM assert processing (unused) */
  #define IGMPMSG_WHOLEPKT	3		/* For PIM Register processing */
  
  
  #endif /* _UAPI__LINUX_MROUTE_H */