Commit 8d34172d authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

sock_diag: Introduce new message type 



This type will run the family+protocol based socket dumping.
Also prepare the stub function for it.

Signed-off-by: default avatarPavel Emelyanov <xemul@parallels.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7f1fb60c

include/linux/inet_diag.h

+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
/* Just some random number */

#define TCPDIAG_GETSOCK 18

#define DCCPDIAG_GETSOCK 19

#define SOCK_DIAG_BY_FAMILY 20



#define INET_DIAG_GETSOCK_MAX 24

net/ipv4/inet_diag.c

+15 −2
Original line number Diff line number Diff line
@@ -850,7 +850,7 @@ unlock: 
	return skb->len;

}



static int inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)

static int inet_diag_rcv_msg_compat(struct sk_buff *skb, struct nlmsghdr *nlh)

{

	int hdrlen = sizeof(struct inet_diag_req);
@@ -877,9 +877,22 @@ static int inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) 
	return inet_diag_get_exact(skb, nlh);

}



static int __sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)

{

	return -EOPNOTSUPP;

}



static int sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)

{

	return inet_diag_rcv_msg(skb, nlh);

	switch (nlh->nlmsg_type) {

	case TCPDIAG_GETSOCK:

	case DCCPDIAG_GETSOCK:

		return inet_diag_rcv_msg_compat(skb, nlh);

	case SOCK_DIAG_BY_FAMILY:

		return __sock_diag_rcv_msg(skb, nlh);

	default:

		return -EINVAL;

	}

}



static DEFINE_MUTEX(sock_diag_mutex);