1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * NET		Generic infrastructure for INET connection oriented protocols.
56 /** inet_connection_sock - INET connection oriented sock
79  * @icsk_probes_tstamp:    Probe timestamp (cleared by non-zero window ack)
118 		__u32		  lrcvtime;	 /* timestamp of last received data packet */
155 	return (void *)inet_csk(sk)->icsk_ca_priv;  in inet_csk_ca()
178 	inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_SCHED;  in inet_csk_schedule_ack()
183 	return inet_csk(sk)->icsk_ack.pending & ICSK_ACK_SCHED;  in inet_csk_ack_scheduled()
188 	memset(&inet_csk(sk)->icsk_ack, 0, sizeof(inet_csk(sk)->icsk_ack));  in inet_csk_delack_init()
199 		icsk->icsk_pending = 0;  in inet_csk_clear_xmit_timer()
201 		sk_stop_timer(sk, &icsk->icsk_retransmit_timer);  in inet_csk_clear_xmit_timer()
204 		icsk->icsk_ack.pending = 0;  in inet_csk_clear_xmit_timer()
205 		icsk->icsk_ack.retry = 0;  in inet_csk_clear_xmit_timer()
207 		sk_stop_timer(sk, &icsk->icsk_delack_timer);  in inet_csk_clear_xmit_timer()
232 		icsk->icsk_pending = what;  in inet_csk_reset_xmit_timer()
233 		icsk->icsk_timeout = jiffies + when;  in inet_csk_reset_xmit_timer()
234 		sk_reset_timer(sk, &icsk->icsk_retransmit_timer, icsk->icsk_timeout);  in inet_csk_reset_xmit_timer()
236 		icsk->icsk_ack.pending |= ICSK_ACK_TIMER;  in inet_csk_reset_xmit_timer()
237 		icsk->icsk_ack.timeout = jiffies + when;  in inet_csk_reset_xmit_timer()
238 		sk_reset_timer(sk, &icsk->icsk_delack_timer, icsk->icsk_ack.timeout);  in inet_csk_reset_xmit_timer()
248         u64 when = (u64)icsk->icsk_rto << icsk->icsk_backoff;  in inet_csk_rto_backoff()
274 	reqsk_queue_added(&inet_csk(sk)->icsk_accept_queue);  in inet_csk_reqsk_queue_added()
279 	return reqsk_queue_len(&inet_csk(sk)->icsk_accept_queue);  in inet_csk_reqsk_queue_len()
284 	return inet_csk_reqsk_queue_len(sk) >= sk->sk_max_ack_backlog;  in inet_csk_reqsk_queue_is_full()
294 	this_cpu_inc(*sk->sk_prot->orphan_count);  in inet_csk_prepare_for_destroy_sock()
305 	return !reqsk_queue_empty(&inet_csk(sk)->icsk_accept_queue) ?  in inet_csk_listen_poll()
324 	inet_csk(sk)->icsk_ack.pingpong = TCP_PINGPONG_THRESH;  in inet_csk_enter_pingpong_mode()
329 	inet_csk(sk)->icsk_ack.pingpong = 0;  in inet_csk_exit_pingpong_mode()
334 	return inet_csk(sk)->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;  in inet_csk_in_pingpong_mode()
341 	if (icsk->icsk_ack.pingpong < U8_MAX)  in inet_csk_inc_pingpong_cnt()
342 		icsk->icsk_ack.pingpong++;  in inet_csk_inc_pingpong_cnt()
347 	return inet_sk(sk)->is_icsk && !!inet_csk(sk)->icsk_ulp_ops;  in inet_csk_has_ulp()