[DCCP] minisock: Rename struct dccp_options to struct dccp_minisock
[linux-2.6.git] / net / dccp / diag.c
1 /*
2  *  net/dccp/diag.c
3  *
4  *  An implementation of the DCCP protocol
5  *  Arnaldo Carvalho de Melo <acme@mandriva.com>
6  *
7  *      This program is free software; you can redistribute it and/or modify it
8  *      under the terms of the GNU General Public License version 2 as
9  *      published by the Free Software Foundation.
10  */
11
12 #include <linux/config.h>
13
14 #include <linux/module.h>
15 #include <linux/inet_diag.h>
16
17 #include "ccid.h"
18 #include "dccp.h"
19
20 static void dccp_get_info(struct sock *sk, struct tcp_info *info)
21 {
22         struct dccp_sock *dp = dccp_sk(sk);
23         const struct inet_connection_sock *icsk = inet_csk(sk);
24
25         memset(info, 0, sizeof(*info));
26
27         info->tcpi_state        = sk->sk_state;
28         info->tcpi_retransmits  = icsk->icsk_retransmits;
29         info->tcpi_probes       = icsk->icsk_probes_out;
30         info->tcpi_backoff      = icsk->icsk_backoff;
31         info->tcpi_pmtu         = icsk->icsk_pmtu_cookie;
32
33         if (dccp_msk(sk)->dccpms_send_ack_vector)
34                 info->tcpi_options |= TCPI_OPT_SACK;
35
36         ccid_hc_rx_get_info(dp->dccps_hc_rx_ccid, sk, info);
37         ccid_hc_tx_get_info(dp->dccps_hc_tx_ccid, sk, info);
38 }
39
40 static void dccp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
41                                void *_info)
42 {
43         r->idiag_rqueue = r->idiag_wqueue = 0;
44
45         if (_info != NULL)
46                 dccp_get_info(sk, _info);
47 }
48
49 static struct inet_diag_handler dccp_diag_handler = {
50         .idiag_hashinfo  = &dccp_hashinfo,
51         .idiag_get_info  = dccp_diag_get_info,
52         .idiag_type      = DCCPDIAG_GETSOCK,
53         .idiag_info_size = sizeof(struct tcp_info),
54 };
55
56 static int __init dccp_diag_init(void)
57 {
58         return inet_diag_register(&dccp_diag_handler);
59 }
60
61 static void __exit dccp_diag_fini(void)
62 {
63         inet_diag_unregister(&dccp_diag_handler);
64 }
65
66 module_init(dccp_diag_init);
67 module_exit(dccp_diag_fini);
68
69 MODULE_LICENSE("GPL");
70 MODULE_AUTHOR("Arnaldo Carvalho de Melo <acme@mandriva.com>");
71 MODULE_DESCRIPTION("DCCP inet_diag handler");