1#ifndef _UAPI__LINUX_MROUTE6_H
2#define _UAPI__LINUX_MROUTE6_H
3
4#include <linux/types.h>
5#include <linux/sockios.h>
6
7/*
8 *	Based on the MROUTING 3.5 defines primarily to keep
9 *	source compatibility with BSD.
10 *
11 *	See the pim6sd 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 MRT6_BASE	200
19#define MRT6_INIT	(MRT6_BASE)	/* Activate the kernel mroute code 	*/
20#define MRT6_DONE	(MRT6_BASE+1)	/* Shutdown the kernel mroute		*/
21#define MRT6_ADD_MIF	(MRT6_BASE+2)	/* Add a virtual interface		*/
22#define MRT6_DEL_MIF	(MRT6_BASE+3)	/* Delete a virtual interface		*/
23#define MRT6_ADD_MFC	(MRT6_BASE+4)	/* Add a multicast forwarding entry	*/
24#define MRT6_DEL_MFC	(MRT6_BASE+5)	/* Delete a multicast forwarding entry	*/
25#define MRT6_VERSION	(MRT6_BASE+6)	/* Get the kernel multicast version	*/
26#define MRT6_ASSERT	(MRT6_BASE+7)	/* Activate PIM assert mode		*/
27#define MRT6_PIM	(MRT6_BASE+8)	/* enable PIM code			*/
28#define MRT6_TABLE	(MRT6_BASE+9)	/* Specify mroute table ID		*/
29#define MRT6_ADD_MFC_PROXY	(MRT6_BASE+10)	/* Add a (*,*|G) mfc entry	*/
30#define MRT6_DEL_MFC_PROXY	(MRT6_BASE+11)	/* Del a (*,*|G) mfc entry	*/
31#define MRT6_MAX	(MRT6_BASE+11)
32
33#define SIOCGETMIFCNT_IN6	SIOCPROTOPRIVATE	/* IP protocol privates */
34#define SIOCGETSGCNT_IN6	(SIOCPROTOPRIVATE+1)
35#define SIOCGETRPF	(SIOCPROTOPRIVATE+2)
36
37#define MAXMIFS		32
38typedef unsigned long mifbitmap_t;	/* User mode code depends on this lot */
39typedef unsigned short mifi_t;
40#define ALL_MIFS	((mifi_t)(-1))
41
42#ifndef IF_SETSIZE
43#define IF_SETSIZE	256
44#endif
45
46typedef	__u32		if_mask;
47#define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
48
49#if !defined(__KERNEL__)
50#if !defined(DIV_ROUND_UP)
51#define	DIV_ROUND_UP(x,y)	(((x) + ((y) - 1)) / (y))
52#endif
53#endif
54
55typedef struct if_set {
56	if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
57} if_set;
58
59#define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
60#define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
61#define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
62#define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
63#define IF_ZERO(p)      bzero(p, sizeof(*(p)))
64
65/*
66 *	Passed by mrouted for an MRT_ADD_MIF - again we use the
67 *	mrouted 3.6 structures for compatibility
68 */
69
70struct mif6ctl {
71	mifi_t	mif6c_mifi;		/* Index of MIF */
72	unsigned char mif6c_flags;	/* MIFF_ flags */
73	unsigned char vifc_threshold;	/* ttl limit */
74	__u16	 mif6c_pifi;		/* the index of the physical IF */
75	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
76};
77
78#define MIFF_REGISTER	0x1	/* register vif	*/
79
80/*
81 *	Cache manipulation structures for mrouted and PIMd
82 */
83
84struct mf6cctl {
85	struct sockaddr_in6 mf6cc_origin;		/* Origin of mcast	*/
86	struct sockaddr_in6 mf6cc_mcastgrp;		/* Group in question	*/
87	mifi_t	mf6cc_parent;			/* Where it arrived	*/
88	struct if_set mf6cc_ifset;		/* Where it is going */
89};
90
91/*
92 *	Group count retrieval for pim6sd
93 */
94
95struct sioc_sg_req6 {
96	struct sockaddr_in6 src;
97	struct sockaddr_in6 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_mif_req6 {
108	mifi_t	mifi;		/* 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 *	That's all usermode folks
117 */
118
119
120
121/*
122 * Structure used to communicate from kernel to multicast router.
123 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}
124 * used for IPv4 implementation). This is because this structure will be passed via an
125 * IPv6 raw socket, on which an application will only receiver the payload i.e the data after
126 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)
127 */
128
129struct mrt6msg {
130#define MRT6MSG_NOCACHE		1
131#define MRT6MSG_WRONGMIF	2
132#define MRT6MSG_WHOLEPKT	3		/* used for use level encap */
133	__u8		im6_mbz;		/* must be zero		   */
134	__u8		im6_msgtype;		/* what type of message    */
135	__u16		im6_mif;		/* mif rec'd on		   */
136	__u32		im6_pad;		/* padding for 64 bit arch */
137	struct in6_addr	im6_src, im6_dst;
138};
139
140#endif /* _UAPI__LINUX_MROUTE6_H */
141