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4f5736c4 ACM |
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> | |
a8c2190e | 15 | #include <linux/inet_diag.h> |
4f5736c4 | 16 | |
2babe1f6 | 17 | #include "ccid.h" |
4f5736c4 ACM |
18 | #include "dccp.h" |
19 | ||
2babe1f6 ACM |
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; | |
d83d8461 | 31 | info->tcpi_pmtu = icsk->icsk_pmtu_cookie; |
2babe1f6 ACM |
32 | |
33 | if (dp->dccps_options.dccpo_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 | ||
73c1f4a0 | 40 | static void dccp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, |
4f5736c4 ACM |
41 | void *_info) |
42 | { | |
73c1f4a0 | 43 | r->idiag_rqueue = r->idiag_wqueue = 0; |
2babe1f6 ACM |
44 | |
45 | if (_info != NULL) | |
46 | dccp_get_info(sk, _info); | |
4f5736c4 ACM |
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, | |
2babe1f6 | 53 | .idiag_info_size = sizeof(struct tcp_info), |
4f5736c4 ACM |
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"); |