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#ifndef __LINUX_MROUTE_H
#define __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 /* __LINUX_MROUTE_H */