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sock_diag: Introduce new message type

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

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2011-12-06 07:57:06 +00:00
committed by David S. Miller
parent 7f1fb60c4f
commit 8d34172dfd
2 changed files with 16 additions and 2 deletions
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1
include/linux/inet_diag.h
View File

@@ -6,6 +6,7 @@
/* Just some random number */ /* Just some random number */
#define TCPDIAG_GETSOCK 18 #define TCPDIAG_GETSOCK 18
#define DCCPDIAG_GETSOCK 19 #define DCCPDIAG_GETSOCK 19
#define SOCK_DIAG_BY_FAMILY 20
#define INET_DIAG_GETSOCK_MAX 24 #define INET_DIAG_GETSOCK_MAX 24

17
net/ipv4/inet_diag.c
View File

@@ -850,7 +850,7 @@ unlock:
return skb->len; 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); 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); 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) 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); static DEFINE_MUTEX(sock_diag_mutex);