LXR linux/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
  24extern struct proto raw_prot;
  25
  26extern struct raw_hashinfo raw_v4_hashinfo;
  27struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
  28                             unsigned short num, __be32 raddr,
  29                             __be32 laddr, int dif, int sdif);
  30
  31int raw_abort(struct sock *sk, int err);
  32void raw_icmp_error(struct sk_buff *, int, u32);
  33int raw_local_deliver(struct sk_buff *, int);
  34
  35int raw_rcv(struct sock *, struct sk_buff *);
  36
  37#define RAW_HTABLE_SIZE MAX_INET_PROTOS
  38
  39struct raw_hashinfo {
  40        rwlock_t lock;
  41        struct hlist_head ht[RAW_HTABLE_SIZE];
  42};
  43
  44#ifdef CONFIG_PROC_FS
  45int raw_proc_init(void);
  46void raw_proc_exit(void);
  47
  48struct raw_iter_state {
  49        struct seq_net_private p;
  50        int bucket;
  51        struct raw_hashinfo *h;
  52};
  53
  54static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
  55{
  56        return seq->private;
  57}
  58void *raw_seq_start(struct seq_file *seq, loff_t *pos);
  59void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
  60void raw_seq_stop(struct seq_file *seq, void *v);
  61int raw_seq_open(struct inode *ino, struct file *file,
  62                 struct raw_hashinfo *h, const struct seq_operations *ops);
  63
  64#endif
  65
  66int raw_hash_sk(struct sock *sk);
  67void raw_unhash_sk(struct sock *sk);
  68
  69struct raw_sock {
  70        /* inet_sock has to be the first member */
  71        struct inet_sock   inet;
  72        struct icmp_filter filter;
  73        u32                ipmr_table;
  74};
  75
  76static inline struct raw_sock *raw_sk(const struct sock *sk)
  77{
  78        return (struct raw_sock *)sk;
  79}
  80
  81#endif  /* _RAW_H */
  82