/* * 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_FSextern int __init ping_proc_init(void);extern void ping_proc_exit(void);#endif void __init ping_init(void);  #endif /* _PING_H */