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kernel/linux-imx6_3.14.28/include/uapi/linux/mroute6.h 4.18 KB
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  #ifndef _UAPI__LINUX_MROUTE6_H
  #define _UAPI__LINUX_MROUTE6_H
  
  #include <linux/types.h>
  #include <linux/sockios.h>
  
  /*
   *	Based on the MROUTING 3.5 defines primarily to keep
   *	source compatibility with BSD.
   *
   *	See the pim6sd code for the original history.
   *
   *      Protocol Independent Multicast (PIM) data structures included
   *      Carlos Picoto (cap@di.fc.ul.pt)
   *
   */
  
  #define MRT6_BASE	200
  #define MRT6_INIT	(MRT6_BASE)	/* Activate the kernel mroute code 	*/
  #define MRT6_DONE	(MRT6_BASE+1)	/* Shutdown the kernel mroute		*/
  #define MRT6_ADD_MIF	(MRT6_BASE+2)	/* Add a virtual interface		*/
  #define MRT6_DEL_MIF	(MRT6_BASE+3)	/* Delete a virtual interface		*/
  #define MRT6_ADD_MFC	(MRT6_BASE+4)	/* Add a multicast forwarding entry	*/
  #define MRT6_DEL_MFC	(MRT6_BASE+5)	/* Delete a multicast forwarding entry	*/
  #define MRT6_VERSION	(MRT6_BASE+6)	/* Get the kernel multicast version	*/
  #define MRT6_ASSERT	(MRT6_BASE+7)	/* Activate PIM assert mode		*/
  #define MRT6_PIM	(MRT6_BASE+8)	/* enable PIM code			*/
  #define MRT6_TABLE	(MRT6_BASE+9)	/* Specify mroute table ID		*/
  #define MRT6_ADD_MFC_PROXY	(MRT6_BASE+10)	/* Add a (*,*|G) mfc entry	*/
  #define MRT6_DEL_MFC_PROXY	(MRT6_BASE+11)	/* Del a (*,*|G) mfc entry	*/
  #define MRT6_MAX	(MRT6_BASE+11)
  
  #define SIOCGETMIFCNT_IN6	SIOCPROTOPRIVATE	/* IP protocol privates */
  #define SIOCGETSGCNT_IN6	(SIOCPROTOPRIVATE+1)
  #define SIOCGETRPF	(SIOCPROTOPRIVATE+2)
  
  #define MAXMIFS		32
  typedef unsigned long mifbitmap_t;	/* User mode code depends on this lot */
  typedef unsigned short mifi_t;
  #define ALL_MIFS	((mifi_t)(-1))
  
  #ifndef IF_SETSIZE
  #define IF_SETSIZE	256
  #endif
  
  typedef	__u32		if_mask;
  #define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
  
  #if !defined(__KERNEL__)
  #if !defined(DIV_ROUND_UP)
  #define	DIV_ROUND_UP(x,y)	(((x) + ((y) - 1)) / (y))
  #endif
  #endif
  
  typedef struct if_set {
  	if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
  } if_set;
  
  #define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
  #define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
  #define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
  #define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
  #define IF_ZERO(p)      bzero(p, sizeof(*(p)))
  
  /*
   *	Passed by mrouted for an MRT_ADD_MIF - again we use the
   *	mrouted 3.6 structures for compatibility
   */
  
  struct mif6ctl {
  	mifi_t	mif6c_mifi;		/* Index of MIF */
  	unsigned char mif6c_flags;	/* MIFF_ flags */
  	unsigned char vifc_threshold;	/* ttl limit */
  	__u16	 mif6c_pifi;		/* the index of the physical IF */
  	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
  };
  
  #define MIFF_REGISTER	0x1	/* register vif	*/
  
  /*
   *	Cache manipulation structures for mrouted and PIMd
   */
  
  struct mf6cctl {
  	struct sockaddr_in6 mf6cc_origin;		/* Origin of mcast	*/
  	struct sockaddr_in6 mf6cc_mcastgrp;		/* Group in question	*/
  	mifi_t	mf6cc_parent;			/* Where it arrived	*/
  	struct if_set mf6cc_ifset;		/* Where it is going */
  };
  
  /*
   *	Group count retrieval for pim6sd
   */
  
  struct sioc_sg_req6 {
  	struct sockaddr_in6 src;
  	struct sockaddr_in6 grp;
  	unsigned long pktcnt;
  	unsigned long bytecnt;
  	unsigned long wrong_if;
  };
  
  /*
   *	To get vif packet counts
   */
  
  struct sioc_mif_req6 {
  	mifi_t	mifi;		/* Which iface */
  	unsigned long icount;	/* In packets */
  	unsigned long ocount;	/* Out packets */
  	unsigned long ibytes;	/* In bytes */
  	unsigned long obytes;	/* Out bytes */
  };
  
  /*
   *	That's all usermode folks
   */
  
  
  
  /*
   * Structure used to communicate from kernel to multicast router.
   * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
   * used for IPv4 implementation). This is because this structure will be passed via an
   * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
   * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
   */
  
  struct mrt6msg {
  #define MRT6MSG_NOCACHE		1
  #define MRT6MSG_WRONGMIF	2
  #define MRT6MSG_WHOLEPKT	3		/* used for use level encap */
  	__u8		im6_mbz;		/* must be zero		   */
  	__u8		im6_msgtype;		/* what type of message    */
  	__u16		im6_mif;		/* mif rec'd on		   */
  	__u32		im6_pad;		/* padding for 64 bit arch */
  	struct in6_addr	im6_src, im6_dst;
  };
  
  #endif /* _UAPI__LINUX_MROUTE6_H */