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authorEric Dumazet <edumazet@google.com>2015-12-17 16:14:11 -0800
committerDavid S. Miller <davem@davemloft.net>2015-12-18 16:06:39 -0500
commit07f6f4a31e5a8dee67960fc07bb0b37c5f879d4d (patch)
tree729a57a6a8b11331a4be6df5fffe7fc001f570f9 /net/ipv4
parentd73e5f41462182053ce1195c3fc4fc14a7e7666b (diff)
tcp: diag: add support for request sockets to tcp_abort()
Adding support for SYN_RECV request sockets to tcp_abort() is quite easy after our tcp listener rewrite. Note that we also need to better handle listeners, or we might leak not yet accepted children, because of a missing inet_csk_listen_stop() call. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Tested-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/tcp.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 2c0e340518d2..cc7aaa507abf 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3083,6 +3083,15 @@ EXPORT_SYMBOL_GPL(tcp_done);
int tcp_abort(struct sock *sk, int err)
{
if (!sk_fullsock(sk)) {
+ if (sk->sk_state == TCP_NEW_SYN_RECV) {
+ struct request_sock *req = inet_reqsk(sk);
+
+ local_bh_disable();
+ inet_csk_reqsk_queue_drop_and_put(req->rsk_listener,
+ req);
+ local_bh_enable();
+ return 0;
+ }
sock_gen_put(sk);
return -EOPNOTSUPP;
}