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Edit File : mroute.h \| Size : 5.30 KB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note / #ifndef __LINUX_MROUTE_H #define __LINUX_MROUTE_H #include <linux/sockios.h> #include <linux/types.h> #include <linux/in.h> / For struct in_addr. / / 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; }; / ipmr netlink table attributes / enum { IPMRA_TABLE_UNSPEC, IPMRA_TABLE_ID, IPMRA_TABLE_CACHE_RES_QUEUE_LEN, IPMRA_TABLE_MROUTE_REG_VIF_NUM, IPMRA_TABLE_MROUTE_DO_ASSERT, IPMRA_TABLE_MROUTE_DO_PIM, IPMRA_TABLE_VIFS, __IPMRA_TABLE_MAX }; #define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1) / ipmr netlink vif attribute format * [ IPMRA_TABLE_VIFS ] - nested attribute * [ IPMRA_VIF ] - nested attribute * [ IPMRA_VIFA_xxx ] / enum { IPMRA_VIF_UNSPEC, IPMRA_VIF, __IPMRA_VIF_MAX }; #define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1) / vif-specific attributes / enum { IPMRA_VIFA_UNSPEC, IPMRA_VIFA_IFINDEX, IPMRA_VIFA_VIF_ID, IPMRA_VIFA_FLAGS, IPMRA_VIFA_BYTES_IN, IPMRA_VIFA_BYTES_OUT, IPMRA_VIFA_PACKETS_IN, IPMRA_VIFA_PACKETS_OUT, IPMRA_VIFA_LOCAL_ADDR, IPMRA_VIFA_REMOTE_ADDR, IPMRA_VIFA_PAD, __IPMRA_VIFA_MAX }; #define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1) / ipmr netlink cache report attributes / enum { IPMRA_CREPORT_UNSPEC, IPMRA_CREPORT_MSGTYPE, IPMRA_CREPORT_VIF_ID, IPMRA_CREPORT_SRC_ADDR, IPMRA_CREPORT_DST_ADDR, IPMRA_CREPORT_PKT, __IPMRA_CREPORT_MAX }; #define IPMRA_CREPORT_MAX (__IPMRA_CREPORT_MAX - 1) / That's all usermode folks / #define MFC_ASSERT_THRESH (3HZ) /* 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 */ Back

Edit File : mroute.h | Size : 5.30 KB

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_MROUTE_H
#define __LINUX_MROUTE_H

#include <linux/sockios.h>
#include <linux/types.h>
#include <linux/in.h>		/* For struct in_addr. */

/* 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;
};

/* ipmr netlink table attributes */
enum {
	IPMRA_TABLE_UNSPEC,
	IPMRA_TABLE_ID,
	IPMRA_TABLE_CACHE_RES_QUEUE_LEN,
	IPMRA_TABLE_MROUTE_REG_VIF_NUM,
	IPMRA_TABLE_MROUTE_DO_ASSERT,
	IPMRA_TABLE_MROUTE_DO_PIM,
	IPMRA_TABLE_VIFS,
	__IPMRA_TABLE_MAX
};
#define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1)

/* ipmr netlink vif attribute format
 * [ IPMRA_TABLE_VIFS ] - nested attribute
 *   [ IPMRA_VIF ] - nested attribute
 *     [ IPMRA_VIFA_xxx ]
 */
enum {
	IPMRA_VIF_UNSPEC,
	IPMRA_VIF,
	__IPMRA_VIF_MAX
};
#define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1)

/* vif-specific attributes */
enum {
	IPMRA_VIFA_UNSPEC,
	IPMRA_VIFA_IFINDEX,
	IPMRA_VIFA_VIF_ID,
	IPMRA_VIFA_FLAGS,
	IPMRA_VIFA_BYTES_IN,
	IPMRA_VIFA_BYTES_OUT,
	IPMRA_VIFA_PACKETS_IN,
	IPMRA_VIFA_PACKETS_OUT,
	IPMRA_VIFA_LOCAL_ADDR,
	IPMRA_VIFA_REMOTE_ADDR,
	IPMRA_VIFA_PAD,
	__IPMRA_VIFA_MAX
};
#define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1)

/* ipmr netlink cache report attributes */
enum {
	IPMRA_CREPORT_UNSPEC,
	IPMRA_CREPORT_MSGTYPE,
	IPMRA_CREPORT_VIF_ID,
	IPMRA_CREPORT_SRC_ADDR,
	IPMRA_CREPORT_DST_ADDR,
	IPMRA_CREPORT_PKT,
	__IPMRA_CREPORT_MAX
};
#define IPMRA_CREPORT_MAX (__IPMRA_CREPORT_MAX - 1)

/* 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 */

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