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authorArnaldo Carvalho de Melo <acme@mandriva.com>2005-08-12 19:59:17 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-30 02:57:54 +0400
commit17b085eacef81a6286bd478f2ec75e04abb091cb (patch)
treeb990ca4a3b8e2c08fbcf09ba18e9ae469754b2df /net/ipv4/tcp_diag.c
parenta8c2190ee7da1a1dc68ff1a6b5f03feb61e523a5 (diff)
downloadlinux-17b085eacef81a6286bd478f2ec75e04abb091cb.tar.xz
[INET_DIAG]: Move the tcp_diag interface to the proper place
With this the previous setup is back, i.e. tcp_diag can be built as a module, as dccp_diag and both share the infrastructure available in inet_diag. If one selects CONFIG_INET_DIAG as module CONFIG_INET_TCP_DIAG will also be built as a module, as will CONFIG_INET_DCCP_DIAG, if CONFIG_IP_DCCP was selected static or as a module, if CONFIG_INET_DIAG is y, being statically linked CONFIG_INET_TCP_DIAG will follow suit and CONFIG_INET_DCCP_DIAG will be built in the same manner as CONFIG_IP_DCCP. Now to aim at UDP, converting it to use inet_hashinfo, so that we can use iproute2 for UDP sockets as well. Ah, just to show an example of this new infrastructure working for DCCP :-) [root@qemu ~]# ./ss -dane State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 0 *:5001 *:* ino:942 sk:cfd503a0 ESTAB 0 0 127.0.0.1:5001 127.0.0.1:32770 ino:943 sk:cfd50a60 ESTAB 0 0 127.0.0.1:32770 127.0.0.1:5001 ino:947 sk:cfd50700 TIME-WAIT 0 0 127.0.0.1:32769 127.0.0.1:5001 timer:(timewait,3.430ms,0) ino:0 sk:cf209620 Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_diag.c')
-rw-r--r--net/ipv4/tcp_diag.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
new file mode 100644
index 000000000000..c148c1081880
--- /dev/null
+++ b/net/ipv4/tcp_diag.c
@@ -0,0 +1,54 @@
+/*
+ * tcp_diag.c Module for monitoring TCP transport protocols sockets.
+ *
+ * Version: $Id: tcp_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
+ *
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+
+#include <linux/module.h>
+#include <linux/inet_diag.h>
+
+#include <linux/tcp.h>
+
+#include <net/tcp.h>
+
+static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
+ void *_info)
+{
+ const struct tcp_sock *tp = tcp_sk(sk);
+ struct tcp_info *info = _info;
+
+ r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
+ r->idiag_wqueue = tp->write_seq - tp->snd_una;
+ if (info != NULL)
+ tcp_get_info(sk, info);
+}
+
+static struct inet_diag_handler tcp_diag_handler = {
+ .idiag_hashinfo = &tcp_hashinfo,
+ .idiag_get_info = tcp_diag_get_info,
+ .idiag_type = TCPDIAG_GETSOCK,
+ .idiag_info_size = sizeof(struct tcp_info),
+};
+
+static int __init tcp_diag_init(void)
+{
+ return inet_diag_register(&tcp_diag_handler);
+}
+
+static void __exit tcp_diag_exit(void)
+{
+ inet_diag_unregister(&tcp_diag_handler);
+}
+
+module_init(tcp_diag_init);
+module_exit(tcp_diag_exit);
+MODULE_LICENSE("GPL");