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sys/netinet/tcp_input.c
| Show First 20 Lines • Show All 158 Lines • ▼ Show 20 Lines | SYSCTL_INT(_net_inet_tcp, OID_AUTO, do_prr_conservative, CTLFLAG_VNET | CTLFLAG_RW, | ||||
| &VNET_NAME(tcp_do_prr_conservative), 0, | &VNET_NAME(tcp_do_prr_conservative), 0, | ||||
| "Do conservative Proportional Rate Reduction"); | "Do conservative Proportional Rate Reduction"); | ||||
| VNET_DEFINE(int, tcp_do_prr) = 1; | VNET_DEFINE(int, tcp_do_prr) = 1; | ||||
| SYSCTL_INT(_net_inet_tcp, OID_AUTO, do_prr, CTLFLAG_VNET | CTLFLAG_RW, | SYSCTL_INT(_net_inet_tcp, OID_AUTO, do_prr, CTLFLAG_VNET | CTLFLAG_RW, | ||||
| &VNET_NAME(tcp_do_prr), 1, | &VNET_NAME(tcp_do_prr), 1, | ||||
| "Enable Proportional Rate Reduction per RFC 6937"); | "Enable Proportional Rate Reduction per RFC 6937"); | ||||
| VNET_DEFINE(int, tcp_do_lrd) = 0; | |||||
| SYSCTL_INT(_net_inet_tcp, OID_AUTO, do_lrd, CTLFLAG_VNET | CTLFLAG_RW, | |||||
| &VNET_NAME(tcp_do_lrd), 1, | |||||
| "Perform Lost Retransmission Detection"); | |||||
| VNET_DEFINE(int, tcp_do_newcwv) = 0; | VNET_DEFINE(int, tcp_do_newcwv) = 0; | ||||
| SYSCTL_INT(_net_inet_tcp, OID_AUTO, newcwv, CTLFLAG_VNET | CTLFLAG_RW, | SYSCTL_INT(_net_inet_tcp, OID_AUTO, newcwv, CTLFLAG_VNET | CTLFLAG_RW, | ||||
| &VNET_NAME(tcp_do_newcwv), 0, | &VNET_NAME(tcp_do_newcwv), 0, | ||||
| "Enable New Congestion Window Validation per RFC7661"); | "Enable New Congestion Window Validation per RFC7661"); | ||||
| VNET_DEFINE(int, tcp_do_rfc3042) = 1; | VNET_DEFINE(int, tcp_do_rfc3042) = 1; | ||||
| SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3042, CTLFLAG_VNET | CTLFLAG_RW, | SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3042, CTLFLAG_VNET | CTLFLAG_RW, | ||||
| &VNET_NAME(tcp_do_rfc3042), 0, | &VNET_NAME(tcp_do_rfc3042), 0, | ||||
| ▲ Show 20 Lines • Show All 2,343 Lines • ▼ Show 20 Lines | #endif | ||||
| case TCPS_CLOSING: | case TCPS_CLOSING: | ||||
| case TCPS_LAST_ACK: | case TCPS_LAST_ACK: | ||||
| if (SEQ_GT(th->th_ack, tp->snd_max)) { | if (SEQ_GT(th->th_ack, tp->snd_max)) { | ||||
| TCPSTAT_INC(tcps_rcvacktoomuch); | TCPSTAT_INC(tcps_rcvacktoomuch); | ||||
| goto dropafterack; | goto dropafterack; | ||||
| } | } | ||||
| if ((tp->t_flags & TF_SACK_PERMIT) && | if ((tp->t_flags & TF_SACK_PERMIT) && | ||||
| ((to.to_flags & TOF_SACK) || | ((to.to_flags & TOF_SACK) || | ||||
| !TAILQ_EMPTY(&tp->snd_holes))) | !TAILQ_EMPTY(&tp->snd_holes))) { | ||||
| sack_changed = tcp_sack_doack(tp, &to, th->th_ack); | if (((sack_changed = tcp_sack_doack(tp, &to, th->th_ack)) != 0) && | ||||
| else | (tp->t_flags & TF_LRD)) { | ||||
| tcp_sack_lost_retransmission(tp, th); | |||||
| } | |||||
| } else | |||||
| /* | /* | ||||
| * Reset the value so that previous (valid) value | * Reset the value so that previous (valid) value | ||||
| * from the last ack with SACK doesn't get used. | * from the last ack with SACK doesn't get used. | ||||
| */ | */ | ||||
| tp->sackhint.sacked_bytes = 0; | tp->sackhint.sacked_bytes = 0; | ||||
| #ifdef TCP_HHOOK | #ifdef TCP_HHOOK | ||||
| /* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */ | /* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */ | ||||
| ▲ Show 20 Lines • Show All 1,543 Lines • Show Last 20 Lines | |||||