[linux-2.6-block.git] / include / net / raw.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the RAW-IP module.
 *
 * Version:	@(#)raw.h	1.0.2	05/07/93
 *
 * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 */
#ifndef _RAW_H
#define _RAW_H

#include <net/inet_sock.h>
#include <net/protocol.h>
#include <linux/icmp.h>

extern struct proto raw_prot;

extern struct raw_hashinfo raw_v4_hashinfo;
struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
			     unsigned short num, __be32 raddr,
			     __be32 laddr, int dif, int sdif);

int raw_abort(struct sock *sk, int err);
void raw_icmp_error(struct sk_buff *, int, u32);
int raw_local_deliver(struct sk_buff *, int);

int raw_rcv(struct sock *, struct sk_buff *);

#define RAW_HTABLE_SIZE	MAX_INET_PROTOS

struct raw_hashinfo {
	rwlock_t lock;
	struct hlist_head ht[RAW_HTABLE_SIZE];
};

#ifdef CONFIG_PROC_FS
int raw_proc_init(void);
void raw_proc_exit(void);

struct raw_iter_state {
	struct seq_net_private p;
	int bucket;
};

static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
{
	return seq->private;
}
void *raw_seq_start(struct seq_file *seq, loff_t *pos);
void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void raw_seq_stop(struct seq_file *seq, void *v);
#endif

int raw_hash_sk(struct sock *sk);
void raw_unhash_sk(struct sock *sk);
void raw_init(void);

struct raw_sock {
	/* inet_sock has to be the first member */
	struct inet_sock   inet;
	struct icmp_filter filter;
	u32		   ipmr_table;
};

static inline struct raw_sock *raw_sk(const struct sock *sk)
{
	return (struct raw_sock *)sk;
}

static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
				       int dif, int sdif)
{
#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
	return inet_bound_dev_eq(!!net->ipv4.sysctl_raw_l3mdev_accept,
				 bound_dev_if, dif, sdif);
#else
	return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
#endif
}

#endif	/* _RAW_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	/*
	3	* INET An implementation of the TCP/IP protocol suite for the LINUX
	4	* operating system. INET is implemented using the BSD Socket
	5	* interface as the means of communication with the user level.
	6	*
	7	* Definitions for the RAW-IP module.
	8	*
	9	* Version: @(#)raw.h 1.0.2 05/07/93
	10	*
	11	* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
1da177e4 LT	12	*/
	13	#ifndef _RAW_H
	14	#define _RAW_H
	15
7055420f	16	#include <net/inet_sock.h>
14c85021	17	#include <net/protocol.h>
f74e49b5	18	#include <linux/icmp.h>
14c85021	19
1da177e4 LT	20	extern struct proto raw_prot;
1da177e4 LT	21
432490f9 CG	22	extern struct raw_hashinfo raw_v4_hashinfo;
	23	struct sock __raw_v4_lookup(struct net net, struct sock *sk,
	24	unsigned short num, __be32 raddr,
67359930	25	__be32 laddr, int dif, int sdif);
432490f9 CG	26
432490f9 CG	27	int raw_abort(struct sock *sk, int err);
7bc54c90 PE	28	void raw_icmp_error(struct sk_buff *, int, u32);
7bc54c90 PE	29	int raw_local_deliver(struct sk_buff *, int);
1da177e4	30
0ad6ad94	31	int raw_rcv(struct sock , struct sk_buff );
1da177e4	32
b673e4df PE	33	#define RAW_HTABLE_SIZE MAX_INET_PROTOS
	34
	35	struct raw_hashinfo {
	36	rwlock_t lock;
	37	struct hlist_head ht[RAW_HTABLE_SIZE];
	38	};
	39
20380731	40	#ifdef CONFIG_PROC_FS
0ad6ad94 JP	41	int raw_proc_init(void);
0ad6ad94 JP	42	void raw_proc_exit(void);
42a73808 PE	43
42a73808 PE	44	struct raw_iter_state {
f51d599f	45	struct seq_net_private p;
42a73808	46	int bucket;
42a73808 PE	47	};
42a73808 PE	48
e3634169 JP	49	static inline struct raw_iter_state raw_seq_private(struct seq_file seq)
	50	{
	51	return seq->private;
	52	}
42a73808 PE	53	void raw_seq_start(struct seq_file seq, loff_t *pos);
	54	void raw_seq_next(struct seq_file seq, void v, loff_t pos);
	55	void raw_seq_stop(struct seq_file seq, void v);
20380731 ACM	56	#endif
20380731 ACM	57
086c653f	58	int raw_hash_sk(struct sock *sk);
fc8717ba	59	void raw_unhash_sk(struct sock *sk);
6897445f	60	void raw_init(void);
65b4c50b	61
f74e49b5 PM	62	struct raw_sock {
	63	/* inet_sock has to be the first member */
	64	struct inet_sock inet;
	65	struct icmp_filter filter;
f0ad0860	66	u32 ipmr_table;
f74e49b5 PM	67	};
	68
	69	static inline struct raw_sock raw_sk(const struct sock sk)
	70	{
	71	return (struct raw_sock *)sk;
	72	}
	73
7055420f DE	74	static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
	75	int dif, int sdif)
	76	{
	77	#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
	78	return inet_bound_dev_eq(!!net->ipv4.sysctl_raw_l3mdev_accept,
	79	bound_dev_if, dif, sdif);
	80	#else
	81	return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
	82	#endif
	83	}
	84
1da177e4	85	#endif /* _RAW_H */