Commit e0df02e0 authored Jun 17, 2015 by Craig Gallek Committed by David S. Miller Jun 21, 2015

sock_diag: fetch source port from inet_sock



When an inet_sock is destroyed, its source port (sk_num) is set to
zero as part of the unhash procedure.  In order to supply a source
port as part of the NETLINK_SOCK_DIAG socket destruction broadcasts,
the source port number must be read from inet_sport instead.

Tested: ss -E
Signed-off-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b7d3282a

net/ipv4/inet_diag.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1095,6 +1095,8 @@ int inet_diag_handler_get_info(struct sk_buff skb, struct sock sk)
		r = nlmsg_data(nlh);
		memset(r, 0, sizeof(*r));
		inet_diag_msg_common_fill(r, sk);
		if (sk->sk_type == SOCK_DGRAM \|\| sk->sk_type == SOCK_STREAM)
		r->id.idiag_sport = inet_sk(sk)->inet_sport;
		r->idiag_state = sk->sk_state;

		if ((err = nla_put_u8(skb, INET_DIAG_PROTOCOL, sk->sk_protocol))) {