From: Pavel Emelyanov <xemul@parallels•com>
To: David Miller <davem@davemloft•net>,
Linux Netdev List <netdev@vger•kernel.org>
Subject: [PATCH 10/13] udp_diag: Basic skeleton
Date: Fri, 09 Dec 2011 20:23:51 +0400 [thread overview]
Message-ID: <4EE23617.90907@parallels.com> (raw)
In-Reply-To: <4EE23561.5020804@parallels.com>
Introduce the transport level diag handler module for UDP (and UDP-lite)
sockets and register (empty for now) callbacks in the inet_diag module.
Signed-off-by: Pavel Emelyanov <xemul@parallels•com>
---
net/ipv4/udp_diag.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 96 insertions(+), 0 deletions(-)
create mode 100644 net/ipv4/udp_diag.c
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
new file mode 100644
index 0000000..15936a3
--- /dev/null
+++ b/net/ipv4/udp_diag.c
@@ -0,0 +1,96 @@
+/*
+ * udp_diag.c Module for monitoring UDP transport protocols sockets.
+ *
+ * Authors: Pavel Emelyanov, <xemul@parallels•com>
+ *
+ * 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/module.h>
+#include <linux/inet_diag.h>
+#include <linux/udp.h>
+#include <net/udp.h>
+#include <net/udplite.h>
+#include <linux/inet_diag.h>
+#include <linux/sock_diag.h>
+
+static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb,
+ const struct nlmsghdr *nlh, struct inet_diag_req *req)
+{
+ return 0;
+}
+
+static void udp_dump(struct udp_table *table, struct sk_buff *skb, struct netlink_callback *cb,
+ struct inet_diag_req *r, struct nlattr *bc)
+{
+}
+
+static void udp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
+ struct inet_diag_req *r, struct nlattr *bc)
+{
+ udp_dump(&udp_table, skb, cb, r, bc);
+}
+
+static int udp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh,
+ struct inet_diag_req *req)
+{
+ return udp_dump_one(&udp_table, in_skb, nlh, req);
+}
+
+static const struct inet_diag_handler udp_diag_handler = {
+ .dump = udp_diag_dump,
+ .dump_one = udp_diag_dump_one,
+ .idiag_type = IPPROTO_UDP,
+};
+
+static void udplite_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
+ struct inet_diag_req *r, struct nlattr *bc)
+{
+ udp_dump(&udplite_table, skb, cb, r, bc);
+}
+
+static int udplite_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh,
+ struct inet_diag_req *req)
+{
+ return udp_dump_one(&udplite_table, in_skb, nlh, req);
+}
+
+static const struct inet_diag_handler udplite_diag_handler = {
+ .dump = udplite_diag_dump,
+ .dump_one = udplite_diag_dump_one,
+ .idiag_type = IPPROTO_UDPLITE,
+};
+
+static int __init udp_diag_init(void)
+{
+ int err;
+
+ err = inet_diag_register(&udp_diag_handler);
+ if (err)
+ goto out;
+ err = inet_diag_register(&udplite_diag_handler);
+ if (err)
+ goto out_lite;
+out:
+ return err;
+out_lite:
+ inet_diag_unregister(&udp_diag_handler);
+ goto out;
+}
+
+static void __exit udp_diag_exit(void)
+{
+ inet_diag_unregister(&udplite_diag_handler);
+ inet_diag_unregister(&udp_diag_handler);
+}
+
+module_init(udp_diag_init);
+module_exit(udp_diag_exit);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 17);
+MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 136);
+
--
1.5.5.6
next prev parent reply other threads:[~2011-12-09 16:23 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 16:20 [PATCH 0/13] Implement dumping udp sockets via sock_diag netlink Pavel Emelyanov
2011-12-09 16:21 ` [PATCH 1/13] inet_diag: Remove indirect sizeof from inet diag handlers Pavel Emelyanov
2011-12-09 16:21 ` [PATCH 2/13] inet_diag: Reduce the number of args for bytecode run routine Pavel Emelyanov
2011-12-09 16:21 ` [PATCH 3/13] inet_diag: Export inet diag cookie checking routine Pavel Emelyanov
2011-12-09 16:22 ` [PATCH 4/13] inet_diag: Split inet_diag_get_exact into parts Pavel Emelyanov
2011-12-09 16:22 ` [PATCH 5/13] " Pavel Emelyanov
2011-12-09 16:22 ` [PATCH 6/13] inet_diag: Introduce the byte-code run on an inet socket Pavel Emelyanov
2011-12-09 16:23 ` [PATCH 7/13] inet_diag: Introduce the inet socket dumping routine Pavel Emelyanov
2011-12-09 16:23 ` [PATCH 8/13] inet_diag: Generalize inet_diag dump and get_exact calls Pavel Emelyanov
2011-12-09 16:23 ` [PATCH 9/13] udp: Export code sk lookup routines Pavel Emelyanov
2011-12-09 16:23 ` Pavel Emelyanov [this message]
2011-12-09 16:24 ` [PATCH 11/13] udp_diag: Implement the get_exact dumping functionality Pavel Emelyanov
2011-12-09 21:48 ` Eric Dumazet
2011-12-10 9:07 ` Pavel Emelyanov
2011-12-10 9:33 ` [PATCH 1/2] udp_diag: Make it module when ipv6 is a module Pavel Emelyanov
2011-12-10 9:35 ` [PATCH 2/2] udp_diag: Fix the !ipv6 case Pavel Emelyanov
2011-12-10 11:02 ` Eric Dumazet
2011-12-10 18:15 ` David Miller
2011-12-10 19:48 ` [PATCH net-next] net: use IS_ENABLED(CONFIG_IPV6) Eric Dumazet
2011-12-10 22:00 ` [PATCH net-next] drivers/net: " Joe Perches
2011-12-10 22:29 ` Eric Dumazet
2011-12-11 0:51 ` Joe Perches
2011-12-11 8:52 ` Eric Dumazet
2011-12-13 0:06 ` Joe Perches
2011-12-11 23:34 ` [PATCH net-next] net: " David Miller
2011-12-10 11:00 ` [PATCH 1/2] udp_diag: Make it module when ipv6 is a module Eric Dumazet
2011-12-10 18:15 ` David Miller
2011-12-09 16:24 ` [PATCH 12/13] udp_diag: Implement the dump-all functionality Pavel Emelyanov
2011-12-09 16:24 ` [PATCH 13/13] udp_diag: Wire the udp_diag module into kbuild Pavel Emelyanov
2011-12-09 16:26 ` [PATCH] iproute: Dump UDP sockets via netlink Pavel Emelyanov
2011-12-09 19:19 ` [PATCH 0/13] Implement dumping udp sockets via sock_diag netlink David Miller
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