Current File : //usr/src/kernels/3.10.0-1160.83.1.el7.centos.plus.x86_64/include/net/ping.h
/*
* 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 "ping" module.
*
* 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 _PING_H
#define _PING_H
#include <net/netns/hash.h>
/* PING_HTABLE_SIZE must be power of 2 */
#define PING_HTABLE_SIZE 64
#define PING_HTABLE_MASK (PING_HTABLE_SIZE-1)
#define ping_portaddr_for_each_entry(__sk, node, list) \
hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node)
/*
* gid_t is either uint or ushort. We want to pass it to
* proc_dointvec_minmax(), so it must not be larger than MAX_INT
*/
#define GID_T_MAX (((gid_t)~0U) >> 1)
struct ping_table {
struct hlist_nulls_head hash[PING_HTABLE_SIZE];
rwlock_t lock;
};
struct ping_iter_state {
struct seq_net_private p;
int bucket;
};
extern struct proto ping_prot;
extern void ping_rcv(struct sk_buff *);
extern void ping_err(struct sk_buff *, u32 info);
#ifdef CONFIG_PROC_FS
extern int __init ping_proc_init(void);
extern void ping_proc_exit(void);
#endif
void __init ping_init(void);
#endif /* _PING_H */
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