1/*
2 * INET		An implementation of the TCP/IP protocol suite for the LINUX
3 *		operating system.  INET is implemented using the  BSD Socket
4 *		interface as the means of communication with the user level.
5 *
6 *		Definitions for the RAW-IP module.
7 *
8 * Version:	@(#)raw.h	1.0.2	05/07/93
9 *
10 * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11 *
12 *		This program is free software; you can redistribute it and/or
13 *		modify it under the terms of the GNU General Public License
14 *		as published by the Free Software Foundation; either version
15 *		2 of the License, or (at your option) any later version.
16 */
17#ifndef _RAW_H
18#define _RAW_H
19
20
21#include <net/protocol.h>
22#include <linux/icmp.h>
23
24extern struct proto raw_prot;
25
26void raw_icmp_error(struct sk_buff *, int, u32);
27int raw_local_deliver(struct sk_buff *, int);
28
29int raw_rcv(struct sock *, struct sk_buff *);
30
31#define RAW_HTABLE_SIZE	MAX_INET_PROTOS
32
33struct raw_hashinfo {
34	rwlock_t lock;
35	struct hlist_head ht[RAW_HTABLE_SIZE];
36};
37
38#ifdef CONFIG_PROC_FS
39int raw_proc_init(void);
40void raw_proc_exit(void);
41
42struct raw_iter_state {
43	struct seq_net_private p;
44	int bucket;
45	struct raw_hashinfo *h;
46};
47
48static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
49{
50	return seq->private;
51}
52void *raw_seq_start(struct seq_file *seq, loff_t *pos);
53void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
54void raw_seq_stop(struct seq_file *seq, void *v);
55int raw_seq_open(struct inode *ino, struct file *file,
56		 struct raw_hashinfo *h, const struct seq_operations *ops);
57
58#endif
59
60void raw_hash_sk(struct sock *sk);
61void raw_unhash_sk(struct sock *sk);
62
63struct raw_sock {
64	/* inet_sock has to be the first member */
65	struct inet_sock   inet;
66	struct icmp_filter filter;
67	u32		   ipmr_table;
68};
69
70static inline struct raw_sock *raw_sk(const struct sock *sk)
71{
72	return (struct raw_sock *)sk;
73}
74
75#endif	/* _RAW_H */
76