projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 17b085ea ACM |
1 | /* |
| 2 | * tcp_diag.c Module for monitoring TCP transport protocols sockets. | |
| 3 | * | |
| 4 | * Version: $Id: tcp_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $ | |
| 5 | * | |
| 6 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
| 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 | ||
| 17b085ea ACM |
14 | |
| 15 | #include <linux/module.h> | |
| 16 | #include <linux/inet_diag.h> | |
| 17 | ||
| 18 | #include <linux/tcp.h> | |
| 19 | ||
| 20 | #include <net/tcp.h> | |
| 21 | ||
| 22 | static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, | |
| 23 | void *_info) | |
| 24 | { | |
| 25 | const struct tcp_sock *tp = tcp_sk(sk); | |
| 26 | struct tcp_info *info = _info; | |
| 27 | ||
| 5ee3afba | 28 | if (sk->sk_state == TCP_LISTEN) { |
| 47da8ee6 | 29 | r->idiag_rqueue = sk->sk_ack_backlog; |
| 5ee3afba RJ |
30 | r->idiag_wqueue = sk->sk_max_ack_backlog; |
| 31 | } else { | |
| 47da8ee6 | 32 | r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq; |
| 5ee3afba RJ |
33 | r->idiag_wqueue = tp->write_seq - tp->snd_una; |
| 34 | } | |
| 17b085ea ACM |
35 | if (info != NULL) |
| 36 | tcp_get_info(sk, info); | |
| 37 | } | |
| 38 | ||
| 39 | static struct inet_diag_handler tcp_diag_handler = { | |
| 40 | .idiag_hashinfo = &tcp_hashinfo, | |
| 41 | .idiag_get_info = tcp_diag_get_info, | |
| 42 | .idiag_type = TCPDIAG_GETSOCK, | |
| 43 | .idiag_info_size = sizeof(struct tcp_info), | |
| 44 | }; | |
| 45 | ||
| 46 | static int __init tcp_diag_init(void) | |
| 47 | { | |
| 48 | return inet_diag_register(&tcp_diag_handler); | |
| 49 | } | |
| 50 | ||
| 51 | static void __exit tcp_diag_exit(void) | |
| 52 | { | |
| 53 | inet_diag_unregister(&tcp_diag_handler); | |
| 54 | } | |
| 55 | ||
| 56 | module_init(tcp_diag_init); | |
| 57 | module_exit(tcp_diag_exit); | |
| 58 | MODULE_LICENSE("GPL"); | |
| 305e1e96 | 59 | MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_INET_DIAG, TCPDIAG_GETSOCK); |