Commit 07f6f4a3 authored Dec 17, 2015 by Eric Dumazet Committed by David S. Miller Dec 18, 2015

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>

parent d73e5f41

net/ipv4/tcp.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}