1#ifndef _UAPI__LINUX_MROUTE_H
2#define _UAPI__LINUX_MROUTE_H
3
4#include <linux/sockios.h>
5#include <linux/types.h>
6
7/*
8 *	Based on the MROUTING 3.5 defines primarily to keep
9 *	source compatibility with BSD.
10 *
11 *	See the mrouted code for the original history.
12 *
13 *      Protocol Independent Multicast (PIM) data structures included
14 *      Carlos Picoto (cap@di.fc.ul.pt)
15 *
16 */
17
18#define MRT_BASE	200
19#define MRT_INIT	(MRT_BASE)	/* Activate the kernel mroute code 	*/
20#define MRT_DONE	(MRT_BASE+1)	/* Shutdown the kernel mroute		*/
21#define MRT_ADD_VIF	(MRT_BASE+2)	/* Add a virtual interface		*/
22#define MRT_DEL_VIF	(MRT_BASE+3)	/* Delete a virtual interface		*/
23#define MRT_ADD_MFC	(MRT_BASE+4)	/* Add a multicast forwarding entry	*/
24#define MRT_DEL_MFC	(MRT_BASE+5)	/* Delete a multicast forwarding entry	*/
25#define MRT_VERSION	(MRT_BASE+6)	/* Get the kernel multicast version	*/
26#define MRT_ASSERT	(MRT_BASE+7)	/* Activate PIM assert mode		*/
27#define MRT_PIM		(MRT_BASE+8)	/* enable PIM code			*/
28#define MRT_TABLE	(MRT_BASE+9)	/* Specify mroute table ID		*/
29#define MRT_ADD_MFC_PROXY	(MRT_BASE+10)	/* Add a (*,*|G) mfc entry	*/
30#define MRT_DEL_MFC_PROXY	(MRT_BASE+11)	/* Del a (*,*|G) mfc entry	*/
31#define MRT_MAX		(MRT_BASE+11)
32
33#define SIOCGETVIFCNT	SIOCPROTOPRIVATE	/* IP protocol privates */
34#define SIOCGETSGCNT	(SIOCPROTOPRIVATE+1)
35#define SIOCGETRPF	(SIOCPROTOPRIVATE+2)
36
37#define MAXVIFS		32
38typedef unsigned long vifbitmap_t;	/* User mode code depends on this lot */
39typedef unsigned short vifi_t;
40#define ALL_VIFS	((vifi_t)(-1))
41
42/*
43 *	Same idea as select
44 */
45
46#define VIFM_SET(n,m)	((m)|=(1<<(n)))
47#define VIFM_CLR(n,m)	((m)&=~(1<<(n)))
48#define VIFM_ISSET(n,m)	((m)&(1<<(n)))
49#define VIFM_CLRALL(m)	((m)=0)
50#define VIFM_COPY(mfrom,mto)	((mto)=(mfrom))
51#define VIFM_SAME(m1,m2)	((m1)==(m2))
52
53/*
54 *	Passed by mrouted for an MRT_ADD_VIF - again we use the
55 *	mrouted 3.6 structures for compatibility
56 */
57
58struct vifctl {
59	vifi_t	vifc_vifi;		/* Index of VIF */
60	unsigned char vifc_flags;	/* VIFF_ flags */
61	unsigned char vifc_threshold;	/* ttl limit */
62	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
63	union {
64		struct in_addr vifc_lcl_addr;     /* Local interface address */
65		int            vifc_lcl_ifindex;  /* Local interface index   */
66	};
67	struct in_addr vifc_rmt_addr;	/* IPIP tunnel addr */
68};
69
70#define VIFF_TUNNEL		0x1	/* IPIP tunnel */
71#define VIFF_SRCRT		0x2	/* NI */
72#define VIFF_REGISTER		0x4	/* register vif	*/
73#define VIFF_USE_IFINDEX	0x8	/* use vifc_lcl_ifindex instead of
74					   vifc_lcl_addr to find an interface */
75
76/*
77 *	Cache manipulation structures for mrouted and PIMd
78 */
79
80struct mfcctl {
81	struct in_addr mfcc_origin;		/* Origin of mcast	*/
82	struct in_addr mfcc_mcastgrp;		/* Group in question	*/
83	vifi_t	mfcc_parent;			/* Where it arrived	*/
84	unsigned char mfcc_ttls[MAXVIFS];	/* Where it is going	*/
85	unsigned int mfcc_pkt_cnt;		/* pkt count for src-grp */
86	unsigned int mfcc_byte_cnt;
87	unsigned int mfcc_wrong_if;
88	int	     mfcc_expire;
89};
90
91/*
92 *	Group count retrieval for mrouted
93 */
94
95struct sioc_sg_req {
96	struct in_addr src;
97	struct in_addr grp;
98	unsigned long pktcnt;
99	unsigned long bytecnt;
100	unsigned long wrong_if;
101};
102
103/*
104 *	To get vif packet counts
105 */
106
107struct sioc_vif_req {
108	vifi_t	vifi;		/* Which iface */
109	unsigned long icount;	/* In packets */
110	unsigned long ocount;	/* Out packets */
111	unsigned long ibytes;	/* In bytes */
112	unsigned long obytes;	/* Out bytes */
113};
114
115/*
116 *	This is the format the mroute daemon expects to see IGMP control
117 *	data. Magically happens to be like an IP packet as per the original
118 */
119
120struct igmpmsg {
121	__u32 unused1,unused2;
122	unsigned char im_msgtype;		/* What is this */
123	unsigned char im_mbz;			/* Must be zero */
124	unsigned char im_vif;			/* Interface (this ought to be a vifi_t!) */
125	unsigned char unused3;
126	struct in_addr im_src,im_dst;
127};
128
129/*
130 *	That's all usermode folks
131 */
132
133
134
135#define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
136
137/*
138 *	Pseudo messages used by mrouted
139 */
140
141#define IGMPMSG_NOCACHE		1		/* Kern cache fill request to mrouted */
142#define IGMPMSG_WRONGVIF	2		/* For PIM assert processing (unused) */
143#define IGMPMSG_WHOLEPKT	3		/* For PIM Register processing */
144
145
146#endif /* _UAPI__LINUX_MROUTE_H */
147