From: Pavel Emelyanov <xemul@parallels•com>
To: David Miller <davem@davemloft•net>,
Linux Netdev List <netdev@vger•kernel.org>
Subject: [PATCH 5/13] unix_diag: Basic module skeleton
Date: Thu, 15 Dec 2011 16:44:35 +0400 [thread overview]
Message-ID: <4EE9EBB3.4030504@parallels.com> (raw)
In-Reply-To: <4EE9EB2A.4040909@parallels.com>
Includes basic module_init/_exit functionality, dump/get_exact stubs
and declares the basic API structures for request and response.
Signed-off-by: Pavel Emelyanov <xemul@parallels•com>
---
include/linux/unix_diag.h | 24 +++++++++++++++++++
net/unix/diag.c | 57 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 81 insertions(+), 0 deletions(-)
create mode 100644 include/linux/unix_diag.h
create mode 100644 net/unix/diag.c
diff --git a/include/linux/unix_diag.h b/include/linux/unix_diag.h
new file mode 100644
index 0000000..445184a
--- /dev/null
+++ b/include/linux/unix_diag.h
@@ -0,0 +1,24 @@
+#ifndef __UNIX_DIAG_H__
+#define __UNIX_DIAG_H__
+
+struct unix_diag_req {
+ __u8 sdiag_family;
+ __u8 sdiag_protocol;
+ __u16 pad;
+ __u32 udiag_states;
+ __u32 udiag_ino;
+ __u32 udiag_show;
+ __u32 udiag_cookie[2];
+};
+
+struct unix_diag_msg {
+ __u8 udiag_family;
+ __u8 udiag_type;
+ __u8 udiag_state;
+ __u8 pad;
+
+ __u32 udiag_ino;
+ __u32 udiag_cookie[2];
+};
+
+#endif
diff --git a/net/unix/diag.c b/net/unix/diag.c
new file mode 100644
index 0000000..6be16c0
--- /dev/null
+++ b/net/unix/diag.c
@@ -0,0 +1,57 @@
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/sock_diag.h>
+#include <linux/unix_diag.h>
+#include <linux/skbuff.h>
+#include <net/netlink.h>
+#include <net/af_unix.h>
+#include <net/tcp_states.h>
+
+#define UNIX_DIAG_PUT(skb, attrtype, attrlen) \
+ RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
+
+static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return 0;
+}
+
+static int unix_diag_get_exact(struct sk_buff *in_skb,
+ const struct nlmsghdr *nlh,
+ struct unix_diag_req *req)
+{
+ return -EAFNOSUPPORT;
+}
+
+static int unix_diag_handler_dump(struct sk_buff *skb, struct nlmsghdr *h)
+{
+ int hdrlen = sizeof(struct unix_diag_req);
+
+ if (nlmsg_len(h) < hdrlen)
+ return -EINVAL;
+
+ if (h->nlmsg_flags & NLM_F_DUMP)
+ return netlink_dump_start(sock_diag_nlsk, skb, h,
+ unix_diag_dump, NULL, 0);
+ else
+ return unix_diag_get_exact(skb, h, (struct unix_diag_req *)NLMSG_DATA(h));
+}
+
+static struct sock_diag_handler unix_diag_handler = {
+ .family = AF_UNIX,
+ .dump = unix_diag_handler_dump,
+};
+
+static int __init unix_diag_init(void)
+{
+ return sock_diag_register(&unix_diag_handler);
+}
+
+static void __exit unix_diag_exit(void)
+{
+ sock_diag_unregister(&unix_diag_handler);
+}
+
+module_init(unix_diag_init);
+module_exit(unix_diag_exit);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 1 /* AF_LOCAL */);
--
1.5.5.6
next prev parent reply other threads:[~2011-12-15 12:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 12:42 [PATCH 0/13] Dumping AF_UNIX sockets via netlink Pavel Emelyanov
2011-12-15 12:42 ` [PATCH 1/13] sock_diag: Move the SOCK_DIAG_BY_FAMILY cmd declaration Pavel Emelyanov
2011-12-15 12:43 ` [PATCH 2/13] sock_diag: Fix module netlink aliases Pavel Emelyanov
2011-12-15 12:43 ` [PATCH 3/13] sock_diag: Generalize requests cookies managements Pavel Emelyanov
2011-12-15 12:44 ` [PATCH 4/13] af_unix: Export stuff required for diag module Pavel Emelyanov
2011-12-15 12:44 ` Pavel Emelyanov [this message]
2011-12-15 12:44 ` [PATCH 6/13] unix_diag: Dumping all sockets core Pavel Emelyanov
2011-12-15 12:45 ` [PATCH 7/13] unix_diag: Dumping exact socket core Pavel Emelyanov
2011-12-15 12:45 ` [PATCH 8/13] unix_diag: Unix socket name NLA Pavel Emelyanov
2011-12-15 12:45 ` [PATCH 9/13] unix_diag: Unix inode info NLA Pavel Emelyanov
2011-12-15 12:45 ` [PATCH 10/13] unix_diag: Unix peer inode NLA Pavel Emelyanov
2011-12-15 12:46 ` [PATCH 11/13] unix_diag: Pending connections IDs NLA Pavel Emelyanov
2011-12-15 12:46 ` [PATCH 12/13] unix_diag: Receive queue lenght NLA Pavel Emelyanov
2011-12-15 12:46 ` [PATCH 13/13] unix_diag: Write it into kbuild Pavel Emelyanov
2011-12-15 13:28 ` [PATCH] iproute: Dump unix sockets via netlink Pavel Emelyanov
2012-01-20 20:51 ` Stephen Hemminger
2011-12-16 18:50 ` [PATCH 0/13] Dumping AF_UNIX " David Miller
2011-12-17 9:54 ` Pavel Emelyanov
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