| in6_rmx.c (186119) | in6_rmx.c (186215) |
|---|---|
| 1/*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 59 unchanged lines hidden (view full) --- 68 * requested. 69 * 2) When such routes lose all their references, it arranges for them 70 * to be deleted in some random collection of circumstances, so that 71 * a large quantity of stale routing data is not kept in kernel memory 72 * indefinitely. See in6_rtqtimo() below for the exact mechanism. 73 */ 74 75#include <sys/cdefs.h> | 1/*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 59 unchanged lines hidden (view full) --- 68 * requested. 69 * 2) When such routes lose all their references, it arranges for them 70 * to be deleted in some random collection of circumstances, so that 71 * a large quantity of stale routing data is not kept in kernel memory 72 * indefinitely. See in6_rtqtimo() below for the exact mechanism. 73 */ 74 75#include <sys/cdefs.h> |
| 76__FBSDID("$FreeBSD: head/sys/netinet6/in6_rmx.c 186119 2008-12-15 06:10:57Z qingli $"); | 76__FBSDID("$FreeBSD: head/sys/netinet6/in6_rmx.c 186215 2008-12-17 10:03:49Z qingli $"); |
| 77 78#include <sys/param.h> 79#include <sys/systm.h> 80#include <sys/kernel.h> 81#include <sys/lock.h> 82#include <sys/sysctl.h> 83#include <sys/queue.h> 84#include <sys/socket.h> --- 130 unchanged lines hidden (view full) --- 215 216SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RTMINEXPIRE, 217 rtminexpire, CTLFLAG_RW, rtq_minreallyold6 , 0, ""); 218 219SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RTMAXCACHE, 220 rtmaxcache, CTLFLAG_RW, rtq_toomany6 , 0, ""); 221 222 | 77 78#include <sys/param.h> 79#include <sys/systm.h> 80#include <sys/kernel.h> 81#include <sys/lock.h> 82#include <sys/sysctl.h> 83#include <sys/queue.h> 84#include <sys/socket.h> --- 130 unchanged lines hidden (view full) --- 215 216SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RTMINEXPIRE, 217 rtminexpire, CTLFLAG_RW, rtq_minreallyold6 , 0, ""); 218 219SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RTMAXCACHE, 220 rtmaxcache, CTLFLAG_RW, rtq_toomany6 , 0, ""); 221 222 |
| 223/* 224 * On last reference drop, mark the route as belong to us so that it can be 225 * timed out. 226 */ 227static void 228in6_clsroute(struct radix_node *rn, struct radix_node_head *head) 229{ 230 INIT_VNET_INET6(curvnet); 231 struct rtentry *rt = (struct rtentry *)rn; | |
| 232 | 223 |
| 233 RT_LOCK_ASSERT(rt); 234 235 if (!(rt->rt_flags & RTF_UP)) 236 return; /* prophylactic measures */ 237 238 /* 239 * As requested by David Greenman: 240 * If rtq_reallyold6 is 0, just delete the route without 241 * waiting for a timeout cycle to kill it. 242 */ 243 if (V_rtq_reallyold6 != 0) { 244 rt->rt_flags |= RTPRF_OURS; 245 rt->rt_rmx.rmx_expire = time_uptime + V_rtq_reallyold6; 246 } else { 247 rtexpunge(rt); 248 } 249} 250 | |
| 251struct rtqk_arg { 252 struct radix_node_head *rnh; 253 int mode; 254 int updating; 255 int draining; 256 int killed; 257 int found; 258 time_t nextstop; --- 205 unchanged lines hidden (view full) --- 464 V_rtq_reallyold6 = 60*60; /* one hour is ``really old'' */ 465 V_rtq_minreallyold6 = 10; /* never automatically crank down to less */ 466 V_rtq_toomany6 = 128; /* 128 cached routes is ``too many'' */ 467 V_rtq_timeout6 = RTQ_TIMEOUT; 468 469 rnh = *head; 470 rnh->rnh_addaddr = in6_addroute; 471 rnh->rnh_matchaddr = in6_matroute; | 224struct rtqk_arg { 225 struct radix_node_head *rnh; 226 int mode; 227 int updating; 228 int draining; 229 int killed; 230 int found; 231 time_t nextstop; --- 205 unchanged lines hidden (view full) --- 437 V_rtq_reallyold6 = 60*60; /* one hour is ``really old'' */ 438 V_rtq_minreallyold6 = 10; /* never automatically crank down to less */ 439 V_rtq_toomany6 = 128; /* 128 cached routes is ``too many'' */ 440 V_rtq_timeout6 = RTQ_TIMEOUT; 441 442 rnh = *head; 443 rnh->rnh_addaddr = in6_addroute; 444 rnh->rnh_matchaddr = in6_matroute; |
| 472 rnh->rnh_close = in6_clsroute; | |
| 473 callout_init(&V_rtq_timer6, CALLOUT_MPSAFE); 474 in6_rtqtimo(rnh); /* kick off timeout first time */ 475 callout_init(&V_rtq_mtutimer, CALLOUT_MPSAFE); 476 in6_mtutimo(rnh); /* kick off timeout first time */ 477 return 1; 478} | 445 callout_init(&V_rtq_timer6, CALLOUT_MPSAFE); 446 in6_rtqtimo(rnh); /* kick off timeout first time */ 447 callout_init(&V_rtq_mtutimer, CALLOUT_MPSAFE); 448 in6_mtutimo(rnh); /* kick off timeout first time */ 449 return 1; 450} |