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.
6 * Definitions for the "ping" module.
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.
17 #include <net/netns/hash.h>
19 /* PING_HTABLE_SIZE must be power of 2 */
20 #define PING_HTABLE_SIZE 64
21 #define PING_HTABLE_MASK (PING_HTABLE_SIZE-1)
23 #define ping_portaddr_for_each_entry(__sk, node, list) \
24 hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node)
27 * gid_t is either uint or ushort. We want to pass it to
28 * proc_dointvec_minmax(), so it must not be larger than MAX_INT
30 #define GID_T_MAX (((gid_t)~0U) >> 1)
32 /* Compatibility glue so we can support IPv6 when it's compiled as a module */
34 int (*ipv6_recv_error
)(struct sock
*sk
, struct msghdr
*msg
, int len
,
36 int (*ip6_datagram_recv_ctl
)(struct sock
*sk
, struct msghdr
*msg
,
38 int (*icmpv6_err_convert
)(u8 type
, u8 code
, int *err
);
39 void (*ipv6_icmp_error
)(struct sock
*sk
, struct sk_buff
*skb
, int err
,
40 __be16 port
, u32 info
, u8
*payload
);
41 int (*ipv6_chk_addr
)(struct net
*net
, const struct in6_addr
*addr
,
42 const struct net_device
*dev
, int strict
);
45 struct ping_iter_state
{
46 struct seq_net_private p
;
51 extern struct proto ping_prot
;
52 #if IS_ENABLED(CONFIG_IPV6)
53 extern struct pingv6_ops pingv6_ops
;
63 int ping_get_port(struct sock
*sk
, unsigned short ident
);
64 void ping_hash(struct sock
*sk
);
65 void ping_unhash(struct sock
*sk
);
67 int ping_init_sock(struct sock
*sk
);
68 void ping_close(struct sock
*sk
, long timeout
);
69 int ping_bind(struct sock
*sk
, struct sockaddr
*uaddr
, int addr_len
);
70 void ping_err(struct sk_buff
*skb
, int offset
, u32 info
);
71 int ping_getfrag(void *from
, char *to
, int offset
, int fraglen
, int odd
,
74 int ping_recvmsg(struct kiocb
*iocb
, struct sock
*sk
, struct msghdr
*msg
,
75 size_t len
, int noblock
, int flags
, int *addr_len
);
76 int ping_common_sendmsg(int family
, struct msghdr
*msg
, size_t len
,
77 void *user_icmph
, size_t icmph_len
);
78 int ping_v6_sendmsg(struct kiocb
*iocb
, struct sock
*sk
, struct msghdr
*msg
,
80 int ping_queue_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
81 void ping_rcv(struct sk_buff
*skb
);
84 struct ping_seq_afinfo
{
87 const struct file_operations
*seq_fops
;
88 const struct seq_operations seq_ops
;
91 extern const struct file_operations ping_seq_fops
;
93 void *ping_seq_start(struct seq_file
*seq
, loff_t
*pos
, sa_family_t family
);
94 void *ping_seq_next(struct seq_file
*seq
, void *v
, loff_t
*pos
);
95 void ping_seq_stop(struct seq_file
*seq
, void *v
);
96 int ping_proc_register(struct net
*net
, struct ping_seq_afinfo
*afinfo
);
97 void ping_proc_unregister(struct net
*net
, struct ping_seq_afinfo
*afinfo
);
99 int __init
ping_proc_init(void);
100 void ping_proc_exit(void);
103 void __init
ping_init(void);
104 int __init
pingv6_init(void);
105 void pingv6_exit(void);