| tcp.c (b3fdfc1b4b641d372e35ced98814289bc60bc5d1) | tcp.c (740b0f1841f6e39085b711d41db9ffb07198682b) |
|---|---|
| 1/* 2 * INET An implementation of the TCP/IP protocol suite for the LINUX 3 * operating system. INET is implemented using the BSD Socket 4 * interface as the means of communication with the user level. 5 * 6 * Implementation of the Transmission Control Protocol(TCP). 7 * 8 * Authors: Ross Biro --- 373 unchanged lines hidden (view full) --- 382 struct tcp_sock *tp = tcp_sk(sk); 383 384 __skb_queue_head_init(&tp->out_of_order_queue); 385 tcp_init_xmit_timers(sk); 386 tcp_prequeue_init(tp); 387 INIT_LIST_HEAD(&tp->tsq_node); 388 389 icsk->icsk_rto = TCP_TIMEOUT_INIT; | 1/* 2 * INET An implementation of the TCP/IP protocol suite for the LINUX 3 * operating system. INET is implemented using the BSD Socket 4 * interface as the means of communication with the user level. 5 * 6 * Implementation of the Transmission Control Protocol(TCP). 7 * 8 * Authors: Ross Biro --- 373 unchanged lines hidden (view full) --- 382 struct tcp_sock *tp = tcp_sk(sk); 383 384 __skb_queue_head_init(&tp->out_of_order_queue); 385 tcp_init_xmit_timers(sk); 386 tcp_prequeue_init(tp); 387 INIT_LIST_HEAD(&tp->tsq_node); 388 389 icsk->icsk_rto = TCP_TIMEOUT_INIT; |
| 390 tp->mdev = TCP_TIMEOUT_INIT; | 390 tp->mdev_us = jiffies_to_usecs(TCP_TIMEOUT_INIT); |
| 391 392 /* So many TCP implementations out there (incorrectly) count the 393 * initial SYN frame in their delayed-ACK and congestion control 394 * algorithms that we must have the following bandaid to talk 395 * efficiently to them. -DaveM 396 */ 397 tp->snd_cwnd = TCP_INIT_CWND; 398 --- 1935 unchanged lines hidden (view full) --- 2334 2335 inet->inet_dport = 0; 2336 2337 if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK)) 2338 inet_reset_saddr(sk); 2339 2340 sk->sk_shutdown = 0; 2341 sock_reset_flag(sk, SOCK_DONE); | 391 392 /* So many TCP implementations out there (incorrectly) count the 393 * initial SYN frame in their delayed-ACK and congestion control 394 * algorithms that we must have the following bandaid to talk 395 * efficiently to them. -DaveM 396 */ 397 tp->snd_cwnd = TCP_INIT_CWND; 398 --- 1935 unchanged lines hidden (view full) --- 2334 2335 inet->inet_dport = 0; 2336 2337 if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK)) 2338 inet_reset_saddr(sk); 2339 2340 sk->sk_shutdown = 0; 2341 sock_reset_flag(sk, SOCK_DONE); |
| 2342 tp->srtt = 0; | 2342 tp->srtt_us = 0; |
| 2343 if ((tp->write_seq += tp->max_window + 2) == 0) 2344 tp->write_seq = 1; 2345 icsk->icsk_backoff = 0; 2346 tp->snd_cwnd = 2; 2347 icsk->icsk_probes_out = 0; 2348 tp->packets_out = 0; 2349 tp->snd_ssthresh = TCP_INFINITE_SSTHRESH; 2350 tp->snd_cwnd_cnt = 0; --- 427 unchanged lines hidden (view full) --- 2778 info->tcpi_fackets = tp->fackets_out; 2779 2780 info->tcpi_last_data_sent = jiffies_to_msecs(now - tp->lsndtime); 2781 info->tcpi_last_data_recv = jiffies_to_msecs(now - icsk->icsk_ack.lrcvtime); 2782 info->tcpi_last_ack_recv = jiffies_to_msecs(now - tp->rcv_tstamp); 2783 2784 info->tcpi_pmtu = icsk->icsk_pmtu_cookie; 2785 info->tcpi_rcv_ssthresh = tp->rcv_ssthresh; | 2343 if ((tp->write_seq += tp->max_window + 2) == 0) 2344 tp->write_seq = 1; 2345 icsk->icsk_backoff = 0; 2346 tp->snd_cwnd = 2; 2347 icsk->icsk_probes_out = 0; 2348 tp->packets_out = 0; 2349 tp->snd_ssthresh = TCP_INFINITE_SSTHRESH; 2350 tp->snd_cwnd_cnt = 0; --- 427 unchanged lines hidden (view full) --- 2778 info->tcpi_fackets = tp->fackets_out; 2779 2780 info->tcpi_last_data_sent = jiffies_to_msecs(now - tp->lsndtime); 2781 info->tcpi_last_data_recv = jiffies_to_msecs(now - icsk->icsk_ack.lrcvtime); 2782 info->tcpi_last_ack_recv = jiffies_to_msecs(now - tp->rcv_tstamp); 2783 2784 info->tcpi_pmtu = icsk->icsk_pmtu_cookie; 2785 info->tcpi_rcv_ssthresh = tp->rcv_ssthresh; |
| 2786 info->tcpi_rtt = jiffies_to_usecs(tp->srtt)>>3; 2787 info->tcpi_rttvar = jiffies_to_usecs(tp->mdev)>>2; | 2786 info->tcpi_rtt = tp->srtt_us >> 3; 2787 info->tcpi_rttvar = tp->mdev_us >> 2; |
| 2788 info->tcpi_snd_ssthresh = tp->snd_ssthresh; 2789 info->tcpi_snd_cwnd = tp->snd_cwnd; 2790 info->tcpi_advmss = tp->advmss; 2791 info->tcpi_reordering = tp->reordering; 2792 2793 info->tcpi_rcv_rtt = jiffies_to_usecs(tp->rcv_rtt_est.rtt)>>3; 2794 info->tcpi_rcv_space = tp->rcvq_space.space; 2795 2796 info->tcpi_total_retrans = tp->total_retrans; | 2788 info->tcpi_snd_ssthresh = tp->snd_ssthresh; 2789 info->tcpi_snd_cwnd = tp->snd_cwnd; 2790 info->tcpi_advmss = tp->advmss; 2791 info->tcpi_reordering = tp->reordering; 2792 2793 info->tcpi_rcv_rtt = jiffies_to_usecs(tp->rcv_rtt_est.rtt)>>3; 2794 info->tcpi_rcv_space = tp->rcvq_space.space; 2795 2796 info->tcpi_total_retrans = tp->total_retrans; |
| 2797 2798 info->tcpi_pacing_rate = sk->sk_pacing_rate != ~0U ? 2799 sk->sk_pacing_rate : ~0ULL; 2800 info->tcpi_max_pacing_rate = sk->sk_max_pacing_rate != ~0U ? 2801 sk->sk_max_pacing_rate : ~0ULL; |
|
| 2797} 2798EXPORT_SYMBOL_GPL(tcp_get_info); 2799 2800static int do_tcp_getsockopt(struct sock *sk, int level, 2801 int optname, char __user *optval, int __user *optlen) 2802{ 2803 struct inet_connection_sock *icsk = inet_csk(sk); 2804 struct tcp_sock *tp = tcp_sk(sk); --- 425 unchanged lines hidden --- | 2802} 2803EXPORT_SYMBOL_GPL(tcp_get_info); 2804 2805static int do_tcp_getsockopt(struct sock *sk, int level, 2806 int optname, char __user *optval, int __user *optlen) 2807{ 2808 struct inet_connection_sock *icsk = inet_csk(sk); 2809 struct tcp_sock *tp = tcp_sk(sk); --- 425 unchanged lines hidden --- |