[mirror_ubuntu-jammy-kernel.git] / include / linux / mroute6.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_MROUTE6_H
#define __LINUX_MROUTE6_H


#include <linux/pim.h>
#include <linux/skbuff.h>	/* for struct sk_buff_head */
#include <net/net_namespace.h>
#include <uapi/linux/mroute6.h>
#include <linux/mroute_base.h>

#ifdef CONFIG_IPV6_MROUTE
static inline int ip6_mroute_opt(int opt)
{
	return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
}
#else
static inline int ip6_mroute_opt(int opt)
{
	return 0;
}
#endif

struct sock;

#ifdef CONFIG_IPV6_MROUTE
extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
extern int ip6_mr_input(struct sk_buff *skb);
extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
extern int ip6_mr_init(void);
extern void ip6_mr_cleanup(void);
#else
static inline
int ip6_mroute_setsockopt(struct sock *sock,
			  int optname, char __user *optval, unsigned int optlen)
{
	return -ENOPROTOOPT;
}

static inline
int ip6_mroute_getsockopt(struct sock *sock,
			  int optname, char __user *optval, int __user *optlen)
{
	return -ENOPROTOOPT;
}

static inline
int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
{
	return -ENOIOCTLCMD;
}

static inline int ip6_mr_init(void)
{
	return 0;
}

static inline void ip6_mr_cleanup(void)
{
	return;
}
#endif

#define VIFF_STATIC 0x8000

struct mfc6_cache_cmp_arg {
	struct in6_addr mf6c_mcastgrp;
	struct in6_addr mf6c_origin;
};

struct mfc6_cache {
	struct rhlist_head mnode;
	union {
		struct {
			struct in6_addr mf6c_mcastgrp;
			struct in6_addr mf6c_origin;
		};
		struct mfc6_cache_cmp_arg cmparg;
	};
	mifi_t mf6c_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 long lastuse;
			unsigned char ttls[MAXMIFS];	/* TTL thresholds		*/
		} res;
	} mfc_un;
	struct list_head list;
	struct rcu_head rcu;
};

#define MFC_STATIC		1
#define MFC_NOTIFY		2

#define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */

struct rtmsg;
extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
			   struct rtmsg *rtm, u32 portid);

#ifdef CONFIG_IPV6_MROUTE
bool mroute6_is_socket(struct net *net, struct sk_buff *skb);
extern int ip6mr_sk_done(struct sock *sk);
#else
static inline bool mroute6_is_socket(struct net *net, struct sk_buff *skb)
{
	return false;
}
static inline int ip6mr_sk_done(struct sock *sk)
{
	return 0;
}
#endif
#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
7bc570c8 YH	2	#ifndef __LINUX_MROUTE6_H
	3	#define __LINUX_MROUTE6_H
	4
7bc570c8	5
7c19a3d2	6	#include <linux/pim.h>
7bc570c8	7	#include <linux/skbuff.h> /* for struct sk_buff_head */
bd91b8bf	8	#include <net/net_namespace.h>
607ca46e	9	#include <uapi/linux/mroute6.h>
6853f21f	10	#include <linux/mroute_base.h>
7bc570c8	11
7bc570c8 YH	12	#ifdef CONFIG_IPV6_MROUTE
	13	static inline int ip6_mroute_opt(int opt)
	14	{
bbb923a4	15	return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
7bc570c8 YH	16	}
	17	#else
	18	static inline int ip6_mroute_opt(int opt)
	19	{
	20	return 0;
	21	}
	22	#endif
	23
	24	struct sock;
	25
e0835f8f	26	#ifdef CONFIG_IPV6_MROUTE
b7058842	27	extern int ip6_mroute_setsockopt(struct sock , int, char __user , unsigned int);
7bc570c8 YH	28	extern int ip6_mroute_getsockopt(struct sock , int, char __user , int __user *);
	29	extern int ip6_mr_input(struct sk_buff *skb);
	30	extern int ip6mr_ioctl(struct sock sk, int cmd, void __user arg);
e2d57766	31	extern int ip6mr_compat_ioctl(struct sock sk, unsigned int cmd, void __user arg);
623d1a1a WC	32	extern int ip6_mr_init(void);
623d1a1a WC	33	extern void ip6_mr_cleanup(void);
e0835f8f YH	34	#else
	35	static inline
	36	int ip6_mroute_setsockopt(struct sock *sock,
b7058842	37	int optname, char __user *optval, unsigned int optlen)
e0835f8f YH	38	{
	39	return -ENOPROTOOPT;
	40	}
	41
	42	static inline
	43	int ip6_mroute_getsockopt(struct sock *sock,
	44	int optname, char __user optval, int __user optlen)
	45	{
	46	return -ENOPROTOOPT;
	47	}
	48
	49	static inline
	50	int ip6mr_ioctl(struct sock sk, int cmd, void __user arg)
	51	{
	52	return -ENOIOCTLCMD;
	53	}
	54
	55	static inline int ip6_mr_init(void)
	56	{
	57	return 0;
	58	}
	59
	60	static inline void ip6_mr_cleanup(void)
	61	{
	62	return;
	63	}
	64	#endif
7bc570c8	65
7bc570c8 YH	66	#define VIFF_STATIC 0x8000
7bc570c8 YH	67
87c418bf YM	68	struct mfc6_cache_cmp_arg {
	69	struct in6_addr mf6c_mcastgrp;
	70	struct in6_addr mf6c_origin;
	71	};
	72
d94d9fee	73	struct mfc6_cache {
87c418bf YM	74	struct rhlist_head mnode;
	75	union {
	76	struct {
	77	struct in6_addr mf6c_mcastgrp;
	78	struct in6_addr mf6c_origin;
	79	};
	80	struct mfc6_cache_cmp_arg cmparg;
	81	};
7bc570c8 YH	82	mifi_t mf6c_parent; /* Source interface */
	83	int mfc_flags; /* Flags on line */
	84
	85	union {
	86	struct {
	87	unsigned long expires;
	88	struct sk_buff_head unresolved; /* Unresolved buffers */
	89	} unres;
	90	struct {
	91	unsigned long last_assert;
	92	int minvif;
	93	int maxvif;
	94	unsigned long bytes;
	95	unsigned long pkt;
	96	unsigned long wrong_if;
43b9e127	97	unsigned long lastuse;
7bc570c8 YH	98	unsigned char ttls[MAXMIFS]; /* TTL thresholds */
	99	} res;
	100	} mfc_un;
87c418bf YM	101	struct list_head list;
87c418bf YM	102	struct rcu_head rcu;
7bc570c8 YH	103	};
	104
	105	#define MFC_STATIC 1
	106	#define MFC_NOTIFY 2
	107
7bc570c8 YH	108	#define MFC_ASSERT_THRESH (3HZ) / Maximal freq. of asserts */
7bc570c8 YH	109
7bc570c8	110	struct rtmsg;
8229efda	111	extern int ip6mr_get_route(struct net net, struct sk_buff skb,
fd61c6ba	112	struct rtmsg *rtm, u32 portid);
7bc570c8 YH	113
7bc570c8 YH	114	#ifdef CONFIG_IPV6_MROUTE
8571ab47	115	bool mroute6_is_socket(struct net net, struct sk_buff skb);
7bc570c8 YH	116	extern int ip6mr_sk_done(struct sock *sk);
7bc570c8 YH	117	#else
8571ab47	118	static inline bool mroute6_is_socket(struct net net, struct sk_buff skb)
d1db275d	119	{
8571ab47	120	return false;
d1db275d PM	121	}
	122	static inline int ip6mr_sk_done(struct sock *sk)
	123	{
	124	return 0;
	125	}
7bc570c8 YH	126	#endif
7bc570c8 YH	127	#endif