1 /* SPDX-License-Identifier: GPL-2.0-or-later */
56 /** inet_connection_sock - INET connection oriented sock
66  * @icsk_ulp_ops	   Pluggable ULP control hook
67  * @icsk_ulp_data	   ULP private data
75  * @icsk_probes_out:	   unanswered 0 window probes
79  * @icsk_probes_tstamp:    Probe timestamp (cleared by non-zero window ack)
154 	return (void *)inet_csk(sk)->icsk_ca_priv;  in inet_csk_ca()
177 	inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_SCHED;  in inet_csk_schedule_ack()
182 	return inet_csk(sk)->icsk_ack.pending & ICSK_ACK_SCHED;  in inet_csk_ack_scheduled()
187 	memset(&inet_csk(sk)->icsk_ack, 0, sizeof(inet_csk(sk)->icsk_ack));  in inet_csk_delack_init()
198 		icsk->icsk_pending = 0;  in inet_csk_clear_xmit_timer()
200 		sk_stop_timer(sk, &icsk->icsk_retransmit_timer);  in inet_csk_clear_xmit_timer()
203 		icsk->icsk_ack.pending = 0;  in inet_csk_clear_xmit_timer()
204 		icsk->icsk_ack.retry = 0;  in inet_csk_clear_xmit_timer()
206 		sk_stop_timer(sk, &icsk->icsk_delack_timer);  in inet_csk_clear_xmit_timer()
223 		pr_debug("reset_xmit_timer: sk=%p %d when=0x%lx, caller=%p\n",  in inet_csk_reset_xmit_timer()
230 		icsk->icsk_pending = what;  in inet_csk_reset_xmit_timer()
231 		icsk->icsk_timeout = jiffies + when;  in inet_csk_reset_xmit_timer()
232 		sk_reset_timer(sk, &icsk->icsk_retransmit_timer, icsk->icsk_timeout);  in inet_csk_reset_xmit_timer()
234 		icsk->icsk_ack.pending |= ICSK_ACK_TIMER;  in inet_csk_reset_xmit_timer()
235 		icsk->icsk_ack.timeout = jiffies + when;  in inet_csk_reset_xmit_timer()
236 		sk_reset_timer(sk, &icsk->icsk_delack_timer, icsk->icsk_ack.timeout);  in inet_csk_reset_xmit_timer()
246         u64 when = (u64)icsk->icsk_rto << icsk->icsk_backoff;  in inet_csk_rto_backoff()
272 	reqsk_queue_added(&inet_csk(sk)->icsk_accept_queue);  in inet_csk_reqsk_queue_added()
277 	return reqsk_queue_len(&inet_csk(sk)->icsk_accept_queue);  in inet_csk_reqsk_queue_len()
282 	return inet_csk_reqsk_queue_len(sk) >= sk->sk_max_ack_backlog;  in inet_csk_reqsk_queue_is_full()
292 	percpu_counter_inc(sk->sk_prot->orphan_count);  in inet_csk_prepare_for_destroy_sock()
303 	return !reqsk_queue_empty(&inet_csk(sk)->icsk_accept_queue) ?  in inet_csk_listen_poll()
304 			(EPOLLIN | EPOLLRDNORM) : 0;  in inet_csk_listen_poll()
322 	inet_csk(sk)->icsk_ack.pingpong = TCP_PINGPONG_THRESH;  in inet_csk_enter_pingpong_mode()
327 	inet_csk(sk)->icsk_ack.pingpong = 0;  in inet_csk_exit_pingpong_mode()
332 	return inet_csk(sk)->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;  in inet_csk_in_pingpong_mode()
339 	if (icsk->icsk_ack.pingpong < U8_MAX)  in inet_csk_inc_pingpong_cnt()
340 		icsk->icsk_ack.pingpong++;  in inet_csk_inc_pingpong_cnt()
345 	return inet_sk(sk)->is_icsk && !!inet_csk(sk)->icsk_ulp_ops;  in inet_csk_has_ulp()