| Vasiliy Kulikov | c319b4d | 2011-05-13 10:01:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
| 3 | * operating system. INET is implemented using the BSD Socket |
| 4 | * interface as the means of communication with the user level. |
| 5 | * |
| 6 | * Definitions for the "ping" module. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version |
| 11 | * 2 of the License, or (at your option) any later version. |
| 12 | */ |
| 13 | #ifndef _PING_H |
| 14 | #define _PING_H |
| 15 | |
| 16 | #include <net/netns/hash.h> |
| 17 | |
| 18 | /* PING_HTABLE_SIZE must be power of 2 */ |
| 19 | #define PING_HTABLE_SIZE 64 |
| 20 | #define PING_HTABLE_MASK (PING_HTABLE_SIZE-1) |
| 21 | |
| 22 | #define ping_portaddr_for_each_entry(__sk, node, list) \ |
| 23 | hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node) |
| 24 | |
| 25 | /* |
| 26 | * gid_t is either uint or ushort. We want to pass it to |
| 27 | * proc_dointvec_minmax(), so it must not be larger than MAX_INT |
| 28 | */ |
| 29 | #define GID_T_MAX (((gid_t)~0U) >> 1) |
| 30 | |
| 31 | struct ping_table { |
| 32 | struct hlist_nulls_head hash[PING_HTABLE_SIZE]; |
| 33 | rwlock_t lock; |
| 34 | }; |
| 35 | |
| 36 | struct ping_iter_state { |
| 37 | struct seq_net_private p; |
| 38 | int bucket; |
| 39 | }; |
| 40 | |
| 41 | extern struct proto ping_prot; |
| 42 | |
| 43 | |
| 44 | extern void ping_rcv(struct sk_buff *); |
| 45 | extern void ping_err(struct sk_buff *, u32 info); |
| 46 | |
| Vasiliy Kulikov | c319b4d | 2011-05-13 10:01:00 +0000 | [diff] [blame] | 47 | #ifdef CONFIG_PROC_FS |
| 48 | extern int __init ping_proc_init(void); |
| 49 | extern void ping_proc_exit(void); |
| 50 | #endif |
| 51 | |
| 52 | void __init ping_init(void); |
| 53 | |
| 54 | |
| 55 | #endif /* _PING_H */ |