net/ipv4/tcp.c

415 	struct inet_connection_sock *icsk = inet_csk(sk);
424 	icsk->icsk_rto = TCP_TIMEOUT_INIT;
425 	icsk->icsk_rto_min = TCP_RTO_MIN;
426 	icsk->icsk_delack_max = TCP_DELACK_MAX;
457 	icsk->icsk_sync_mss = tcp_sync_mss;
1451 		const struct inet_connection_sock *icsk = inet_csk(sk);
1454 		    tp->rcv_nxt - tp->rcv_wup > icsk->icsk_ack.rcv_mss ||
1462 		     ((icsk->icsk_ack.pending & ICSK_ACK_PUSHED2) ||
1463 		      ((icsk->icsk_ack.pending & ICSK_ACK_PUSHED) &&
2985 	struct inet_connection_sock *icsk = inet_csk(sk);
3032 	icsk->icsk_backoff = 0;
3033 	icsk->icsk_probes_out = 0;
3034 	icsk->icsk_probes_tstamp = 0;
3035 	icsk->icsk_rto = TCP_TIMEOUT_INIT;
3036 	icsk->icsk_rto_min = TCP_RTO_MIN;
3037 	icsk->icsk_delack_max = TCP_DELACK_MAX;
3046 	if (icsk->icsk_ca_ops->release)
3047 		icsk->icsk_ca_ops->release(sk);
3048 	memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
3049 	icsk->icsk_ca_initialized = 0;
3058 	icsk->icsk_ack.rcv_mss = TCP_MIN_MSS;
3102 	WARN_ON(inet->inet_num && !icsk->icsk_bind_hash);
3414 	struct inet_connection_sock *icsk = inet_csk(sk);
3508 		WRITE_ONCE(icsk->icsk_accept_queue.rskq_defer_accept,
3733 	const struct inet_connection_sock *icsk = inet_csk(sk);
3737 		return READ_ONCE(icsk->icsk_af_ops)->setsockopt(sk, level, optname,
3766 	const struct inet_connection_sock *icsk = inet_csk(sk);
3802 	info->tcpi_ca_state = icsk->icsk_ca_state;
3803 	info->tcpi_retransmits = icsk->icsk_retransmits;
3804 	info->tcpi_probes = icsk->icsk_probes_out;
3805 	info->tcpi_backoff = icsk->icsk_backoff;
3826 	info->tcpi_rto = jiffies_to_usecs(icsk->icsk_rto);
3827 	info->tcpi_ato = jiffies_to_usecs(min_t(u32, icsk->icsk_ack.ato,
3830 	info->tcpi_rcv_mss = icsk->icsk_ack.rcv_mss;
3840 	info->tcpi_last_data_recv = jiffies_to_msecs(now - icsk->icsk_ack.lrcvtime);
3843 	info->tcpi_pmtu = icsk->icsk_pmtu_cookie;
4008 	struct inet_connection_sock *icsk = inet_csk(sk);
4046 		val = READ_ONCE(icsk->icsk_syn_retries) ? :
4055 		val = READ_ONCE(icsk->icsk_accept_queue.rskq_defer_accept);
4086 		ca_ops = icsk->icsk_ca_ops;
4107 		if (copy_to_sockptr(optval, icsk->icsk_ca_ops->name, len))
4115 		if (!icsk->icsk_ulp_ops) {
4123 		if (copy_to_sockptr(optval, icsk->icsk_ulp_ops->name, len))
4134 		key_len = tcp_fastopen_get_cipher(net, icsk, key) *
4194 		val = READ_ONCE(icsk->icsk_user_timeout);
4198 		val = READ_ONCE(icsk->icsk_accept_queue.fastopenq.max_qlen);
4371 	struct inet_connection_sock *icsk = inet_csk(sk);
4375 		return READ_ONCE(icsk->icsk_af_ops)->getsockopt(sk, level, optname,