| tcp_timewait.c (204838) | tcp_timewait.c (207369) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. 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 --- 16 unchanged lines hidden (view full) --- 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)tcp_subr.c 8.2 (Berkeley) 5/24/95 30 */ 31 32#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. 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 --- 16 unchanged lines hidden (view full) --- 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)tcp_subr.c 8.2 (Berkeley) 5/24/95 30 */ 31 32#include <sys/cdefs.h> |
| 33__FBSDID("$FreeBSD: head/sys/netinet/tcp_timewait.c 204838 2010-03-07 15:58:44Z bz $"); | 33__FBSDID("$FreeBSD: head/sys/netinet/tcp_timewait.c 207369 2010-04-29 11:52:42Z bz $"); |
| 34 35#include "opt_inet.h" 36#include "opt_inet6.h" 37#include "opt_tcpdebug.h" 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/callout.h> --- 45 unchanged lines hidden (view full) --- 87#include <netinet/tcp_debug.h> 88#endif 89#include <netinet6/ip6protosw.h> 90 91#include <machine/in_cksum.h> 92 93#include <security/mac/mac_framework.h> 94 | 34 35#include "opt_inet.h" 36#include "opt_inet6.h" 37#include "opt_tcpdebug.h" 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/callout.h> --- 45 unchanged lines hidden (view full) --- 87#include <netinet/tcp_debug.h> 88#endif 89#include <netinet6/ip6protosw.h> 90 91#include <machine/in_cksum.h> 92 93#include <security/mac/mac_framework.h> 94 |
| 95static VNET_DEFINE(uma_zone_t, tcptw_zone); 96#define V_tcptw_zone VNET(tcptw_zone) |
|
| 95static int maxtcptw; 96 97/* 98 * The timed wait queue contains references to each of the TCP sessions 99 * currently in the TIME_WAIT state. The queue pointers, including the 100 * queue pointers in each tcptw structure, are protected using the global 101 * tcbinfo lock, which must be held over queue iteration and modification. 102 */ | 97static int maxtcptw; 98 99/* 100 * The timed wait queue contains references to each of the TCP sessions 101 * currently in the TIME_WAIT state. The queue pointers, including the 102 * queue pointers in each tcptw structure, are protected using the global 103 * tcbinfo lock, which must be held over queue iteration and modification. 104 */ |
| 103static VNET_DEFINE(uma_zone_t, tcptw_zone); | |
| 104static VNET_DEFINE(TAILQ_HEAD(, tcptw), twq_2msl); | 105static VNET_DEFINE(TAILQ_HEAD(, tcptw), twq_2msl); |
| 105VNET_DEFINE(int, nolocaltimewait); 106 107#define V_tcptw_zone VNET(tcptw_zone) | |
| 108#define V_twq_2msl VNET(twq_2msl) 109 110static void tcp_tw_2msl_reset(struct tcptw *, int); 111static void tcp_tw_2msl_stop(struct tcptw *); 112 113static int 114tcptw_auto_size(void) 115{ --- 28 unchanged lines hidden (view full) --- 144 } 145 return (error); 146} 147 148SYSCTL_PROC(_net_inet_tcp, OID_AUTO, maxtcptw, CTLTYPE_INT|CTLFLAG_RW, 149 &maxtcptw, 0, sysctl_maxtcptw, "IU", 150 "Maximum number of compressed TCP TIME_WAIT entries"); 151 | 106#define V_twq_2msl VNET(twq_2msl) 107 108static void tcp_tw_2msl_reset(struct tcptw *, int); 109static void tcp_tw_2msl_stop(struct tcptw *); 110 111static int 112tcptw_auto_size(void) 113{ --- 28 unchanged lines hidden (view full) --- 142 } 143 return (error); 144} 145 146SYSCTL_PROC(_net_inet_tcp, OID_AUTO, maxtcptw, CTLTYPE_INT|CTLFLAG_RW, 147 &maxtcptw, 0, sysctl_maxtcptw, "IU", 148 "Maximum number of compressed TCP TIME_WAIT entries"); 149 |
| 150VNET_DEFINE(int, nolocaltimewait) = 0; 151#define V_nolocaltimewait VNET(nolocaltimewait) |
|
| 152SYSCTL_VNET_INT(_net_inet_tcp, OID_AUTO, nolocaltimewait, CTLFLAG_RW, 153 &VNET_NAME(nolocaltimewait), 0, 154 "Do not create compressed TCP TIME_WAIT entries for local connections"); 155 156void 157tcp_tw_zone_change(void) 158{ 159 --- 457 unchanged lines hidden --- | 152SYSCTL_VNET_INT(_net_inet_tcp, OID_AUTO, nolocaltimewait, CTLFLAG_RW, 153 &VNET_NAME(nolocaltimewait), 0, 154 "Do not create compressed TCP TIME_WAIT entries for local connections"); 155 156void 157tcp_tw_zone_change(void) 158{ 159 --- 457 unchanged lines hidden --- |