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sock_diag: fetch source port from inet_sock

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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>
This commit is contained in:
Craig Gallek 2015-06-17 10:59:10 -04:00 committed by David S. Miller
parent b7d3282a24
commit e0df02e0c2
1 changed files with 2 additions and 0 deletions
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net/ipv4/inet_diag.c
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@ -1095,6 +1095,8 @@ int inet_diag_handler_get_info(struct sk_buff *skb, struct sock *sk)
r = nlmsg_data(nlh); r = nlmsg_data(nlh);
memset(r, 0, sizeof(*r)); memset(r, 0, sizeof(*r));
inet_diag_msg_common_fill(r, sk); 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; r->idiag_state = sk->sk_state;
if ((err = nla_put_u8(skb, INET_DIAG_PROTOCOL, sk->sk_protocol))) { if ((err = nla_put_u8(skb, INET_DIAG_PROTOCOL, sk->sk_protocol))) {