include/net/raw.h

   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
  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
  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 */