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 
24 extern struct proto raw_prot;
25 
26 void raw_icmp_error(struct sk_buff *, int, u32);
27 int raw_local_deliver(struct sk_buff *, int);
28 
29 extern int 	raw_rcv(struct sock *, struct sk_buff *);
30 
31 #define RAW_HTABLE_SIZE	MAX_INET_PROTOS
32 
33 struct raw_hashinfo {
34 	rwlock_t lock;
35 	struct hlist_head ht[RAW_HTABLE_SIZE];
36 };
37 
38 #ifdef CONFIG_PROC_FS
39 extern int  raw_proc_init(void);
40 extern void raw_proc_exit(void);
41 
42 struct raw_iter_state {
43 	struct seq_net_private p;
44 	int bucket;
45 	struct raw_hashinfo *h;
46 };
47 
raw_seq_private(struct seq_file * seq)48 static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
49 {
50 	return seq->private;
51 }
52 void *raw_seq_start(struct seq_file *seq, loff_t *pos);
53 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
54 void raw_seq_stop(struct seq_file *seq, void *v);
55 int raw_seq_open(struct inode *ino, struct file *file,
56 		 struct raw_hashinfo *h, const struct seq_operations *ops);
57 
58 #endif
59 
60 void raw_hash_sk(struct sock *sk);
61 void raw_unhash_sk(struct sock *sk);
62 
63 struct 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 
raw_sk(const struct sock * sk)70 static inline struct raw_sock *raw_sk(const struct sock *sk)
71 {
72 	return (struct raw_sock *)sk;
73 }
74 
75 #endif	/* _RAW_H */
76