• P
    [RAW]: Consolidate proc interface. · 42a73808
    Pavel Emelyanov 提交于
    Both ipv6/raw.c and ipv4/raw.c use the seq files to walk
    through the raw sockets hash and show them.
    
    The "walking" code is rather huge, but is identical in both
    cases. The difference is the hash table to walk over and
    the protocol family to check (this was not in the first
    virsion of the patch, which was noticed by YOSHIFUJI)
    
    Make the ->open store the needed hash table and the family
    on the allocated raw_iter_state and make the start/next/stop
    callbacks work with it.
    
    This removes most of the code.
    Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    42a73808
raw.h 1.6 KB
/*
 * 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>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _RAW_H
#define _RAW_H


#include <net/protocol.h>

extern struct proto raw_prot;

void raw_icmp_error(struct sk_buff *, int, u32);
int raw_local_deliver(struct sk_buff *, int);

extern 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
extern int  raw_proc_init(void);
extern void raw_proc_exit(void);

struct raw_iter_state {
	int bucket;
	unsigned short family;
	struct raw_hashinfo *h;
};

#define raw_seq_private(seq) ((struct raw_iter_state *)(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);
int raw_seq_open(struct file *file, struct raw_hashinfo *h,
		unsigned short family);

#endif

void raw_hash_sk(struct sock *sk, struct raw_hashinfo *h);
void raw_unhash_sk(struct sock *sk, struct raw_hashinfo *h);

#endif	/* _RAW_H */
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