[mirror_ubuntu-bionic-kernel.git] / include / linux / mroute.h

#ifndef __LINUX_MROUTE_H
#define __LINUX_MROUTE_H

#include <linux/in.h>
#include <linux/pim.h>
#include <net/sock.h>
#include <uapi/linux/mroute.h>

#ifdef CONFIG_IP_MROUTE
static inline int ip_mroute_opt(int opt)
{
	return (opt >= MRT_BASE) && (opt <= MRT_MAX);
}
#else
static inline int ip_mroute_opt(int opt)
{
	return 0;
}
#endif

#ifdef CONFIG_IP_MROUTE
extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
extern int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
extern int ip_mr_init(void);
#else
static inline
int ip_mroute_setsockopt(struct sock *sock,
			 int optname, char __user *optval, unsigned int optlen)
{
	return -ENOPROTOOPT;
}

static inline
int ip_mroute_getsockopt(struct sock *sock,
			 int optname, char __user *optval, int __user *optlen)
{
	return -ENOPROTOOPT;
}

static inline
int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
{
	return -ENOIOCTLCMD;
}

static inline int ip_mr_init(void)
{
	return 0;
}
#endif

struct vif_device {
	struct net_device 	*dev;			/* Device we are using */
	unsigned long	bytes_in,bytes_out;
	unsigned long	pkt_in,pkt_out;		/* Statistics 			*/
	unsigned long	rate_limit;		/* Traffic shaping (NI) 	*/
	unsigned char	threshold;		/* TTL threshold 		*/
	unsigned short	flags;			/* Control flags 		*/
	__be32		local,remote;		/* Addresses(remote for tunnels)*/
	int		link;			/* Physical interface index	*/
};

#define VIFF_STATIC 0x8000

struct mfc_cache {
	struct list_head list;
	__be32 mfc_mcastgrp;			/* Group the entry belongs to 	*/
	__be32 mfc_origin;			/* Source of packet 		*/
	vifi_t mfc_parent;			/* Source interface		*/
	int mfc_flags;				/* Flags on line		*/

	union {
		struct {
			unsigned long expires;
			struct sk_buff_head unresolved;	/* Unresolved buffers		*/
		} unres;
		struct {
			unsigned long last_assert;
			int minvif;
			int maxvif;
			unsigned long bytes;
			unsigned long pkt;
			unsigned long wrong_if;
			unsigned char ttls[MAXVIFS];	/* TTL thresholds		*/
		} res;
	} mfc_un;
	struct rcu_head	rcu;
};

#define MFC_STATIC		1
#define MFC_NOTIFY		2

#define MFC_LINES		64

#ifdef __BIG_ENDIAN
#define MFC_HASH(a,b)	(((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
#else
#define MFC_HASH(a,b)	((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
#endif		

struct rtmsg;
extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
			  __be32 saddr, __be32 daddr,
			  struct rtmsg *rtm, int nowait);
#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __LINUX_MROUTE_H
	2	#define __LINUX_MROUTE_H
	3
1da177e4	4	#include <linux/in.h>
7c19a3d2	5	#include <linux/pim.h>
1da177e4	6	#include <net/sock.h>
607ca46e	7	#include <uapi/linux/mroute.h>
1da177e4	8
6a9fb947 PE	9	#ifdef CONFIG_IP_MROUTE
	10	static inline int ip_mroute_opt(int opt)
	11	{
bbb923a4	12	return (opt >= MRT_BASE) && (opt <= MRT_MAX);
6a9fb947 PE	13	}
	14	#else
	15	static inline int ip_mroute_opt(int opt)
	16	{
	17	return 0;
	18	}
	19	#endif
	20
e0835f8f	21	#ifdef CONFIG_IP_MROUTE
b7058842	22	extern int ip_mroute_setsockopt(struct sock , int, char __user , unsigned int);
1da177e4 LT	23	extern int ip_mroute_getsockopt(struct sock , int, char __user , int __user *);
1da177e4 LT	24	extern int ipmr_ioctl(struct sock sk, int cmd, void __user arg);
709b46e8	25	extern int ipmr_compat_ioctl(struct sock sk, unsigned int cmd, void __user arg);
03d2f897	26	extern int ip_mr_init(void);
e0835f8f YH	27	#else
	28	static inline
	29	int ip_mroute_setsockopt(struct sock *sock,
b7058842	30	int optname, char __user *optval, unsigned int optlen)
e0835f8f YH	31	{
	32	return -ENOPROTOOPT;
	33	}
	34
	35	static inline
	36	int ip_mroute_getsockopt(struct sock *sock,
	37	int optname, char __user optval, int __user optlen)
	38	{
	39	return -ENOPROTOOPT;
	40	}
	41
	42	static inline
	43	int ipmr_ioctl(struct sock sk, int cmd, void __user arg)
	44	{
	45	return -ENOIOCTLCMD;
	46	}
	47
	48	static inline int ip_mr_init(void)
	49	{
	50	return 0;
	51	}
	52	#endif
1da177e4	53
d94d9fee	54	struct vif_device {
1da177e4 LT	55	struct net_device dev; / Device we are using */
	56	unsigned long bytes_in,bytes_out;
	57	unsigned long pkt_in,pkt_out; /* Statistics */
	58	unsigned long rate_limit; /* Traffic shaping (NI) */
	59	unsigned char threshold; /* TTL threshold */
	60	unsigned short flags; /* Control flags */
114c7844	61	__be32 local,remote; /* Addresses(remote for tunnels)*/
1da177e4 LT	62	int link; /* Physical interface index */
	63	};
	64
	65	#define VIFF_STATIC 0x8000
	66
d94d9fee	67	struct mfc_cache {
862465f2	68	struct list_head list;
114c7844 AV	69	__be32 mfc_mcastgrp; /* Group the entry belongs to */
114c7844 AV	70	__be32 mfc_origin; /* Source of packet */
1da177e4 LT	71	vifi_t mfc_parent; /* Source interface */
	72	int mfc_flags; /* Flags on line */
	73
	74	union {
	75	struct {
	76	unsigned long expires;
	77	struct sk_buff_head unresolved; /* Unresolved buffers */
	78	} unres;
	79	struct {
	80	unsigned long last_assert;
	81	int minvif;
	82	int maxvif;
	83	unsigned long bytes;
	84	unsigned long pkt;
	85	unsigned long wrong_if;
	86	unsigned char ttls[MAXVIFS]; /* TTL thresholds */
	87	} res;
	88	} mfc_un;
a8c9486b	89	struct rcu_head rcu;
1da177e4 LT	90	};
	91
	92	#define MFC_STATIC 1
	93	#define MFC_NOTIFY 2
	94
	95	#define MFC_LINES 64
	96
	97	#ifdef __BIG_ENDIAN
114c7844	98	#define MFC_HASH(a,b) (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
1da177e4	99	#else
114c7844	100	#define MFC_HASH(a,b) ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
1da177e4 LT	101	#endif
1da177e4 LT	102
1da177e4	103	struct rtmsg;
4feb88e5	104	extern int ipmr_get_route(struct net net, struct sk_buff skb,
9a1b9496	105	__be32 saddr, __be32 daddr,
4feb88e5	106	struct rtmsg *rtm, int nowait);
1da177e4	107	#endif