| /src/sys/netinet/ |
| tcp_vtw.c | 32 * methods called Vestigial Time-Wait (VTW) and Maximum Segment Lifetime
35 * MSLT and VTW were contributed by Coyote Point Systems, Inc.
54 * Vestigial Time-Wait (VTW) replaces a TIME_WAIT session's PCB/socket
56 * "vestigial PCB". VTW data structures are designed to be very fast and
64 * runs out, VTW makes room by discarding old vestigial PCBs, oldest first.
65 * VTW cooperates with MSLT.
67 * It may help to think of VTW as a "FIN cache" by analogy to the SYN
71 * sessions as fast as it can is approximately 17% idle when VTW is active
72 * versus 0% idle when VTW is inactive. It has 103 megabytes more free RAM
73 * when VTW is active (approximately 64k vestigial PCBs are created) tha
470 vtw_v4_t *vtw = ctl->base.v4 + idx; local in function:vtw_from_index
475 vtw_v6_t *vtw = ctl->base.v6 + idx; local in function:vtw_from_index
778 vtw_t *vtw; local in function:vtw_lookup_hash_v4
931 vtw_t *vtw; local in function:vtw_lookup_hash_v6
1029 vtw_t *vtw; local in function:vtw_next_port_v4
1143 vtw_t *vtw; local in function:vtw_next_port_v6
1378 vtw_t *vtw = 0; local in function:vtw_alloc
1487 vtw_t *vtw; local in function:vtw_age
1640 vtw_t *vtw = 0; local in function:tcp_next_port_v4
1656 vtw_t *vtw; local in function:tcp_lookup_v4
1740 vtw_t *vtw = 0; local in function:tcp_next_port_v6
1757 vtw_t *vtw; local in function:tcp_lookup_v6
1883 vtw_t *vtw; local in function:vtw_add
2060 vtw_t *vtw; local in function:vtw_restart_v4
2108 vtw_t *vtw; local in function:vtw_restart_v6
2230 vtw_t *vtw; local in function:vtw_debug_add
2376 vtw_t *vtw; local in function:vtw_sanity_check
[all...] |
| tcp_vtw.h | 202 /*!\brief common to all vtw
271 vtw_ctl_t *vtw; /* associated VTWs */ member in struct:fatp_ctl
389 struct vtw_common *vtw; member in struct:vestigial_inpcb
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| tcp_input.c | 1116 vtw_del(vp->ctl, vp->vtw);
1473 /* We do not support the resurrection of vtw tcpcps. */
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| /src/usr.bin/netstat/ |
| Makefile | 16 unix.c vtw.c rtutil.c
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| inet.c | 93 #include "vtw.h"
110 /* VTW-related variables. */
190 print_vtw_v4(const vtw_t *vtw)
192 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw;
204 timersub(&vtw->expire, &now, &delta);
206 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) {
212 } else if (vtw->expire.tv_sec == 0)
228 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire);
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| inet6.c | 139 #include "vtw.h"
164 /* VTW-related variables. */
247 print_vtw_v6(const vtw_t *vtw)
249 const vtw_v6_t *v6 = (const vtw_v6_t *)vtw;
257 timersub(&vtw->expire, &now, &delta);
259 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) {
265 } else if (vtw->expire.tv_sec == 0)
281 TCPS_TIME_WAIT, "tcp6", &vtw->expire);
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| vtw.c | 1 /* $NetBSD: vtw.c,v 1.13 2022/09/01 10:10:20 msaitoh Exp $ */
65 __RCSID("$NetBSD: vtw.c,v 1.13 2022/09/01 10:10:20 msaitoh Exp $");
115 #include "vtw.h"
131 if (prog_sysctlbyname("net.inet.tcp.vtw.enable",
342 fat_tcpv4.vtw = &vtw_tcpv4[0];
365 printf("total memory for VTW in current config: "
448 fat_tcpv6.vtw = &vtw_tcpv6[0];
471 printf("total memory for VTW in current config: "
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