mirror of https://gitee.com/openkylin/linux.git
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the "ping" module.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _PING_H
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#define _PING_H
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#include <net/netns/hash.h>
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/* PING_HTABLE_SIZE must be power of 2 */
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#define PING_HTABLE_SIZE 64
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#define PING_HTABLE_MASK (PING_HTABLE_SIZE-1)
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#define ping_portaddr_for_each_entry(__sk, node, list) \
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hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node)
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/*
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* gid_t is either uint or ushort. We want to pass it to
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* proc_dointvec_minmax(), so it must not be larger than MAX_INT
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*/
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#define GID_T_MAX (((gid_t)~0U) >> 1)
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struct ping_table {
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struct hlist_nulls_head hash[PING_HTABLE_SIZE];
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rwlock_t lock;
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};
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struct ping_iter_state {
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struct seq_net_private p;
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int bucket;
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};
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extern struct proto ping_prot;
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extern void ping_rcv(struct sk_buff *);
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extern void ping_err(struct sk_buff *, u32 info);
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#ifdef CONFIG_PROC_FS
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extern int __init ping_proc_init(void);
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extern void ping_proc_exit(void);
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#endif
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void __init ping_init(void);
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#endif /* _PING_H */
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