udp_diag: implement idiag_get_info for udp/udplite to get queue information
When we use netlink to monitor queue information for udp socket,
idiag_rqueue and idiag_wqueue of inet_diag_msg are returned with 0.
Keep consistent with netstat, just return back allocated rmem/wmem size.
Signed-off-by: Shan Wei <davidshan@tencent.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
index 8a949f1..a7f86a3 100644
--- a/net/ipv4/udp_diag.c
+++ b/net/ipv4/udp_diag.c
@@ -146,9 +146,17 @@
return udp_dump_one(&udp_table, in_skb, nlh, req);
}
+static void udp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
+ void *info)
+{
+ r->idiag_rqueue = sk_rmem_alloc_get(sk);
+ r->idiag_wqueue = sk_wmem_alloc_get(sk);
+}
+
static const struct inet_diag_handler udp_diag_handler = {
.dump = udp_diag_dump,
.dump_one = udp_diag_dump_one,
+ .idiag_get_info = udp_diag_get_info,
.idiag_type = IPPROTO_UDP,
};
@@ -167,6 +175,7 @@
static const struct inet_diag_handler udplite_diag_handler = {
.dump = udplite_diag_dump,
.dump_one = udplite_diag_dump_one,
+ .idiag_get_info = udp_diag_get_info,
.idiag_type = IPPROTO_UDPLITE,
};