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head/sys/netinet/tcp_stacks/rack.c
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| Show First 20 Lines • Show All 5,427 Lines • ▼ Show 20 Lines | rack_do_syn_recv(struct mbuf *m, struct tcphdr *th, struct socket *so, | ||||
| */ | */ | ||||
| if ((to->to_flags & TOF_TS) != 0 && | if ((to->to_flags & TOF_TS) != 0 && | ||||
| SEQ_LEQ(th->th_seq, tp->last_ack_sent) && | SEQ_LEQ(th->th_seq, tp->last_ack_sent) && | ||||
| SEQ_LEQ(tp->last_ack_sent, th->th_seq + tlen + | SEQ_LEQ(tp->last_ack_sent, th->th_seq + tlen + | ||||
| ((thflags & (TH_SYN | TH_FIN)) != 0))) { | ((thflags & (TH_SYN | TH_FIN)) != 0))) { | ||||
| tp->ts_recent_age = tcp_ts_getticks(); | tp->ts_recent_age = tcp_ts_getticks(); | ||||
| tp->ts_recent = to->to_tsval; | tp->ts_recent = to->to_tsval; | ||||
| } | } | ||||
| tp->snd_wnd = tiwin; | |||||
| /* | /* | ||||
| * If the ACK bit is off: if in SYN-RECEIVED state or SENDSYN flag | * If the ACK bit is off: if in SYN-RECEIVED state or SENDSYN flag | ||||
| * is on (half-synchronized state), then queue data for later | * is on (half-synchronized state), then queue data for later | ||||
| * processing; else drop segment and return. | * processing; else drop segment and return. | ||||
| */ | */ | ||||
| if ((thflags & TH_ACK) == 0) { | if ((thflags & TH_ACK) == 0) { | ||||
| if (IS_FASTOPEN(tp->t_flags)) { | if (IS_FASTOPEN(tp->t_flags)) { | ||||
| tp->snd_wnd = tiwin; | |||||
| cc_conn_init(tp); | cc_conn_init(tp); | ||||
| } | } | ||||
| return (rack_process_data(m, th, so, tp, drop_hdrlen, tlen, | return (rack_process_data(m, th, so, tp, drop_hdrlen, tlen, | ||||
| tiwin, thflags, nxt_pkt)); | tiwin, thflags, nxt_pkt)); | ||||
| } | } | ||||
| TCPSTAT_INC(tcps_connects); | TCPSTAT_INC(tcps_connects); | ||||
| soisconnected(so); | soisconnected(so); | ||||
| /* Do window scaling? */ | /* Do window scaling? */ | ||||
| if ((tp->t_flags & (TF_RCVD_SCALE | TF_REQ_SCALE)) == | if ((tp->t_flags & (TF_RCVD_SCALE | TF_REQ_SCALE)) == | ||||
| (TF_RCVD_SCALE | TF_REQ_SCALE)) { | (TF_RCVD_SCALE | TF_REQ_SCALE)) { | ||||
| tp->rcv_scale = tp->request_r_scale; | tp->rcv_scale = tp->request_r_scale; | ||||
| tp->snd_wnd = tiwin; | |||||
| } | } | ||||
| /* | /* | ||||
| * Make transitions: SYN-RECEIVED -> ESTABLISHED SYN-RECEIVED* -> | * Make transitions: SYN-RECEIVED -> ESTABLISHED SYN-RECEIVED* -> | ||||
| * FIN-WAIT-1 | * FIN-WAIT-1 | ||||
| */ | */ | ||||
| tp->t_starttime = ticks; | tp->t_starttime = ticks; | ||||
| if (IS_FASTOPEN(tp->t_flags) && tp->t_tfo_pending) { | if (IS_FASTOPEN(tp->t_flags) && tp->t_tfo_pending) { | ||||
| tcp_fastopen_decrement_counter(tp->t_tfo_pending); | tcp_fastopen_decrement_counter(tp->t_tfo_pending); | ||||
| ▲ Show 20 Lines • Show All 3,695 Lines • Show Last 20 Lines | |||||