1c319b4d7SVasiliy Kulikov /* 2c319b4d7SVasiliy Kulikov * INET An implementation of the TCP/IP protocol suite for the LINUX 3c319b4d7SVasiliy Kulikov * operating system. INET is implemented using the BSD Socket 4c319b4d7SVasiliy Kulikov * interface as the means of communication with the user level. 5c319b4d7SVasiliy Kulikov * 6c319b4d7SVasiliy Kulikov * Definitions for the "ping" module. 7c319b4d7SVasiliy Kulikov * 8c319b4d7SVasiliy Kulikov * This program is free software; you can redistribute it and/or 9c319b4d7SVasiliy Kulikov * modify it under the terms of the GNU General Public License 10c319b4d7SVasiliy Kulikov * as published by the Free Software Foundation; either version 11c319b4d7SVasiliy Kulikov * 2 of the License, or (at your option) any later version. 12c319b4d7SVasiliy Kulikov */ 13c319b4d7SVasiliy Kulikov #ifndef _PING_H 14c319b4d7SVasiliy Kulikov #define _PING_H 15c319b4d7SVasiliy Kulikov 16c319b4d7SVasiliy Kulikov #include <net/netns/hash.h> 17c319b4d7SVasiliy Kulikov 18c319b4d7SVasiliy Kulikov /* PING_HTABLE_SIZE must be power of 2 */ 19c319b4d7SVasiliy Kulikov #define PING_HTABLE_SIZE 64 20c319b4d7SVasiliy Kulikov #define PING_HTABLE_MASK (PING_HTABLE_SIZE-1) 21c319b4d7SVasiliy Kulikov 22c319b4d7SVasiliy Kulikov #define ping_portaddr_for_each_entry(__sk, node, list) \ 23c319b4d7SVasiliy Kulikov hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node) 24c319b4d7SVasiliy Kulikov 25c319b4d7SVasiliy Kulikov /* 26c319b4d7SVasiliy Kulikov * gid_t is either uint or ushort. We want to pass it to 27c319b4d7SVasiliy Kulikov * proc_dointvec_minmax(), so it must not be larger than MAX_INT 28c319b4d7SVasiliy Kulikov */ 29c319b4d7SVasiliy Kulikov #define GID_T_MAX (((gid_t)~0U) >> 1) 30c319b4d7SVasiliy Kulikov 31c319b4d7SVasiliy Kulikov struct ping_table { 32c319b4d7SVasiliy Kulikov struct hlist_nulls_head hash[PING_HTABLE_SIZE]; 33c319b4d7SVasiliy Kulikov rwlock_t lock; 34c319b4d7SVasiliy Kulikov }; 35c319b4d7SVasiliy Kulikov 36c319b4d7SVasiliy Kulikov struct ping_iter_state { 37c319b4d7SVasiliy Kulikov struct seq_net_private p; 38c319b4d7SVasiliy Kulikov int bucket; 39c319b4d7SVasiliy Kulikov }; 40c319b4d7SVasiliy Kulikov 41c319b4d7SVasiliy Kulikov extern struct proto ping_prot; 42c319b4d7SVasiliy Kulikov 43c319b4d7SVasiliy Kulikov 44c319b4d7SVasiliy Kulikov extern void ping_rcv(struct sk_buff *); 45c319b4d7SVasiliy Kulikov extern void ping_err(struct sk_buff *, u32 info); 46c319b4d7SVasiliy Kulikov 47c319b4d7SVasiliy Kulikov extern void inet_get_ping_group_range_net(struct net *net, unsigned int *low, unsigned int *high); 48c319b4d7SVasiliy Kulikov 49c319b4d7SVasiliy Kulikov #ifdef CONFIG_PROC_FS 50c319b4d7SVasiliy Kulikov extern int __init ping_proc_init(void); 51c319b4d7SVasiliy Kulikov extern void ping_proc_exit(void); 52c319b4d7SVasiliy Kulikov #endif 53c319b4d7SVasiliy Kulikov 54c319b4d7SVasiliy Kulikov void __init ping_init(void); 55c319b4d7SVasiliy Kulikov 56c319b4d7SVasiliy Kulikov 57c319b4d7SVasiliy Kulikov #endif /* _PING_H */ 58