2005-04-16 15:20:36 -07:00
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/*
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* sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem.
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*
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* $Id: sysctl_net_ipv4.c,v 1.50 2001/10/20 00:00:11 davem Exp $
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*
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* Begun April 1, 1996, Mike Shaver.
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* Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS]
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*/
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/sysctl.h>
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2005-08-15 22:18:02 -07:00
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#include <linux/igmp.h>
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2005-12-26 21:43:12 -07:00
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#include <linux/inetdevice.h>
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2007-10-10 17:30:46 -07:00
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#include <linux/seqlock.h>
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2005-04-16 15:20:36 -07:00
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#include <net/snmp.h>
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2005-08-15 22:18:02 -07:00
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#include <net/icmp.h>
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2005-04-16 15:20:36 -07:00
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#include <net/ip.h>
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#include <net/route.h>
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#include <net/tcp.h>
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2006-08-03 16:48:06 -07:00
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#include <net/cipso_ipv4.h>
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2007-10-15 02:33:45 -07:00
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#include <net/inet_frag.h>
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2005-04-16 15:20:36 -07:00
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/* From af_inet.c */
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extern int sysctl_ip_nonlocal_bind;
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#ifdef CONFIG_SYSCTL
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2005-12-14 00:14:27 -07:00
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static int zero;
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2007-02-09 07:24:47 -07:00
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static int tcp_retr1_max = 255;
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2005-04-16 15:20:36 -07:00
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static int ip_local_port_range_min[] = { 1, 1 };
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static int ip_local_port_range_max[] = { 65535, 65535 };
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#endif
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struct ipv4_config ipv4_config;
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#ifdef CONFIG_SYSCTL
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static
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int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp,
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void __user *buffer, size_t *lenp, loff_t *ppos)
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{
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2007-06-04 23:34:44 -07:00
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int val = IPV4_DEVCONF_ALL(FORWARDING);
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2005-04-16 15:20:36 -07:00
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int ret;
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ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
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2007-06-04 23:34:44 -07:00
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if (write && IPV4_DEVCONF_ALL(FORWARDING) != val)
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2005-04-16 15:20:36 -07:00
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inet_forward_change();
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return ret;
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}
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static int ipv4_sysctl_forward_strategy(ctl_table *table,
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int __user *name, int nlen,
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void __user *oldval, size_t __user *oldlenp,
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2006-12-10 03:19:10 -07:00
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void __user *newval, size_t newlen)
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2005-04-16 15:20:36 -07:00
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{
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int *valp = table->data;
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int new;
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if (!newval || !newlen)
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return 0;
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if (newlen != sizeof(int))
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return -EINVAL;
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if (get_user(new, (int __user *)newval))
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return -EFAULT;
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if (new == *valp)
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return 0;
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if (oldval && oldlenp) {
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size_t len;
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if (get_user(len, oldlenp))
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return -EFAULT;
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if (len) {
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if (len > table->maxlen)
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len = table->maxlen;
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if (copy_to_user(oldval, valp, len))
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return -EFAULT;
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if (put_user(len, oldlenp))
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return -EFAULT;
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}
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}
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*valp = new;
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inet_forward_change();
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return 1;
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}
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2007-10-10 17:30:46 -07:00
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extern seqlock_t sysctl_port_range_lock;
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extern int sysctl_local_port_range[2];
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/* Update system visible IP port range */
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static void set_local_port_range(int range[2])
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{
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write_seqlock(&sysctl_port_range_lock);
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sysctl_local_port_range[0] = range[0];
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sysctl_local_port_range[1] = range[1];
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write_sequnlock(&sysctl_port_range_lock);
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}
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/* Validate changes from /proc interface. */
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static int ipv4_local_port_range(ctl_table *table, int write, struct file *filp,
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void __user *buffer,
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size_t *lenp, loff_t *ppos)
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{
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int ret;
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int range[2] = { sysctl_local_port_range[0],
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sysctl_local_port_range[1] };
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ctl_table tmp = {
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.data = &range,
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.maxlen = sizeof(range),
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.mode = table->mode,
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.extra1 = &ip_local_port_range_min,
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.extra2 = &ip_local_port_range_max,
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};
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ret = proc_dointvec_minmax(&tmp, write, filp, buffer, lenp, ppos);
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if (write && ret == 0) {
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2007-10-18 22:00:17 -07:00
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if (range[1] < range[0])
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2007-10-10 17:30:46 -07:00
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ret = -EINVAL;
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else
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set_local_port_range(range);
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}
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return ret;
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}
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/* Validate changes from sysctl interface. */
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static int ipv4_sysctl_local_port_range(ctl_table *table, int __user *name,
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int nlen, void __user *oldval,
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size_t __user *oldlenp,
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void __user *newval, size_t newlen)
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{
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int ret;
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int range[2] = { sysctl_local_port_range[0],
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sysctl_local_port_range[1] };
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ctl_table tmp = {
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.data = &range,
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.maxlen = sizeof(range),
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.mode = table->mode,
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.extra1 = &ip_local_port_range_min,
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.extra2 = &ip_local_port_range_max,
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};
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ret = sysctl_intvec(&tmp, name, nlen, oldval, oldlenp, newval, newlen);
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if (ret == 0 && newval && newlen) {
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2007-10-18 22:00:17 -07:00
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if (range[1] < range[0])
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2007-10-10 17:30:46 -07:00
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ret = -EINVAL;
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else
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set_local_port_range(range);
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}
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return ret;
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}
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2005-06-23 12:19:55 -07:00
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static int proc_tcp_congestion_control(ctl_table *ctl, int write, struct file * filp,
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void __user *buffer, size_t *lenp, loff_t *ppos)
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{
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char val[TCP_CA_NAME_MAX];
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ctl_table tbl = {
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.data = val,
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.maxlen = TCP_CA_NAME_MAX,
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};
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int ret;
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tcp_get_default_congestion_control(val);
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ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
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if (write && ret == 0)
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ret = tcp_set_default_congestion_control(val);
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return ret;
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}
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2005-08-15 22:18:02 -07:00
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static int sysctl_tcp_congestion_control(ctl_table *table, int __user *name,
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int nlen, void __user *oldval,
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size_t __user *oldlenp,
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2006-12-10 03:19:10 -07:00
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void __user *newval, size_t newlen)
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2005-06-23 12:19:55 -07:00
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{
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char val[TCP_CA_NAME_MAX];
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ctl_table tbl = {
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.data = val,
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.maxlen = TCP_CA_NAME_MAX,
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};
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int ret;
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tcp_get_default_congestion_control(val);
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2006-12-10 03:19:10 -07:00
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ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen);
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2005-06-23 12:19:55 -07:00
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if (ret == 0 && newval && newlen)
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ret = tcp_set_default_congestion_control(val);
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return ret;
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}
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2006-11-09 17:32:06 -07:00
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static int proc_tcp_available_congestion_control(ctl_table *ctl,
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int write, struct file * filp,
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void __user *buffer, size_t *lenp,
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loff_t *ppos)
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{
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ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
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int ret;
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tbl.data = kmalloc(tbl.maxlen, GFP_USER);
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if (!tbl.data)
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return -ENOMEM;
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tcp_get_available_congestion_control(tbl.data, TCP_CA_BUF_MAX);
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ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
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kfree(tbl.data);
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return ret;
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}
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2006-11-09 17:35:15 -07:00
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static int proc_allowed_congestion_control(ctl_table *ctl,
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int write, struct file * filp,
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void __user *buffer, size_t *lenp,
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loff_t *ppos)
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{
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ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
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int ret;
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tbl.data = kmalloc(tbl.maxlen, GFP_USER);
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if (!tbl.data)
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return -ENOMEM;
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tcp_get_allowed_congestion_control(tbl.data, tbl.maxlen);
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ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
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if (write && ret == 0)
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ret = tcp_set_allowed_congestion_control(tbl.data);
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kfree(tbl.data);
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return ret;
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}
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static int strategy_allowed_congestion_control(ctl_table *table, int __user *name,
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int nlen, void __user *oldval,
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size_t __user *oldlenp,
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2006-12-10 03:19:10 -07:00
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void __user *newval,
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size_t newlen)
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2006-11-09 17:35:15 -07:00
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{
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ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
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int ret;
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tbl.data = kmalloc(tbl.maxlen, GFP_USER);
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if (!tbl.data)
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return -ENOMEM;
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tcp_get_available_congestion_control(tbl.data, tbl.maxlen);
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2006-12-10 03:19:10 -07:00
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ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen);
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2006-11-09 17:35:15 -07:00
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if (ret == 0 && newval && newlen)
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ret = tcp_set_allowed_congestion_control(tbl.data);
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kfree(tbl.data);
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return ret;
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}
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2005-04-16 15:20:36 -07:00
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ctl_table ipv4_table[] = {
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_TCP_TIMESTAMPS,
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.procname = "tcp_timestamps",
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.data = &sysctl_tcp_timestamps,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_TCP_WINDOW_SCALING,
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.procname = "tcp_window_scaling",
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.data = &sysctl_tcp_window_scaling,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_TCP_SACK,
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.procname = "tcp_sack",
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.data = &sysctl_tcp_sack,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_TCP_RETRANS_COLLAPSE,
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.procname = "tcp_retrans_collapse",
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.data = &sysctl_tcp_retrans_collapse,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_FORWARD,
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.procname = "ip_forward",
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2007-06-04 23:34:44 -07:00
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.data = &IPV4_DEVCONF_ALL(FORWARDING),
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2005-04-16 15:20:36 -07:00
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &ipv4_sysctl_forward,
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.strategy = &ipv4_sysctl_forward_strategy
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_DEFAULT_TTL,
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.procname = "ip_default_ttl",
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2007-02-09 07:24:47 -07:00
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.data = &sysctl_ip_default_ttl,
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2005-04-16 15:20:36 -07:00
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &ipv4_doint_and_flush,
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.strategy = &ipv4_doint_and_flush_strategy,
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},
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2007-02-09 07:24:47 -07:00
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{
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2005-04-16 15:20:36 -07:00
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.ctl_name = NET_IPV4_NO_PMTU_DISC,
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.procname = "ip_no_pmtu_disc",
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.data = &ipv4_config.no_pmtu_disc,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = NET_IPV4_NONLOCAL_BIND,
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.procname = "ip_nonlocal_bind",
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.data = &sysctl_ip_nonlocal_bind,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = NET_IPV4_TCP_SYN_RETRIES,
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.procname = "tcp_syn_retries",
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.data = &sysctl_tcp_syn_retries,
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.maxlen = sizeof(int),
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.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_SYNACK_RETRIES,
|
|
|
|
.procname = "tcp_synack_retries",
|
|
|
|
.data = &sysctl_tcp_synack_retries,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MAX_ORPHANS,
|
|
|
|
.procname = "tcp_max_orphans",
|
|
|
|
.data = &sysctl_tcp_max_orphans,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MAX_TW_BUCKETS,
|
|
|
|
.procname = "tcp_max_tw_buckets",
|
2005-08-09 20:44:40 -07:00
|
|
|
.data = &tcp_death_row.sysctl_max_tw_buckets,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IPFRAG_HIGH_THRESH,
|
|
|
|
.procname = "ipfrag_high_thresh",
|
2007-10-15 02:33:45 -07:00
|
|
|
.data = &ip4_frags_ctl.high_thresh,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IPFRAG_LOW_THRESH,
|
|
|
|
.procname = "ipfrag_low_thresh",
|
2007-10-15 02:33:45 -07:00
|
|
|
.data = &ip4_frags_ctl.low_thresh,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_DYNADDR,
|
|
|
|
.procname = "ip_dynaddr",
|
|
|
|
.data = &sysctl_ip_dynaddr,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IPFRAG_TIME,
|
|
|
|
.procname = "ipfrag_time",
|
2007-10-15 02:33:45 -07:00
|
|
|
.data = &ip4_frags_ctl.timeout,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_KEEPALIVE_TIME,
|
|
|
|
.procname = "tcp_keepalive_time",
|
|
|
|
.data = &sysctl_tcp_keepalive_time,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_KEEPALIVE_PROBES,
|
|
|
|
.procname = "tcp_keepalive_probes",
|
|
|
|
.data = &sysctl_tcp_keepalive_probes,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_KEEPALIVE_INTVL,
|
|
|
|
.procname = "tcp_keepalive_intvl",
|
|
|
|
.data = &sysctl_tcp_keepalive_intvl,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_RETRIES1,
|
|
|
|
.procname = "tcp_retries1",
|
|
|
|
.data = &sysctl_tcp_retries1,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_minmax,
|
|
|
|
.strategy = &sysctl_intvec,
|
|
|
|
.extra2 = &tcp_retr1_max
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_RETRIES2,
|
|
|
|
.procname = "tcp_retries2",
|
|
|
|
.data = &sysctl_tcp_retries2,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_TCP_FIN_TIMEOUT,
|
|
|
|
.procname = "tcp_fin_timeout",
|
|
|
|
.data = &sysctl_tcp_fin_timeout,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
#ifdef CONFIG_SYN_COOKIES
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_SYNCOOKIES,
|
|
|
|
.procname = "tcp_syncookies",
|
|
|
|
.data = &sysctl_tcp_syncookies,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_TW_RECYCLE,
|
|
|
|
.procname = "tcp_tw_recycle",
|
2005-08-09 20:44:40 -07:00
|
|
|
.data = &tcp_death_row.sysctl_tw_recycle,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ABORT_ON_OVERFLOW,
|
|
|
|
.procname = "tcp_abort_on_overflow",
|
|
|
|
.data = &sysctl_tcp_abort_on_overflow,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_STDURG,
|
|
|
|
.procname = "tcp_stdurg",
|
|
|
|
.data = &sysctl_tcp_stdurg,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_RFC1337,
|
|
|
|
.procname = "tcp_rfc1337",
|
|
|
|
.data = &sysctl_tcp_rfc1337,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MAX_SYN_BACKLOG,
|
|
|
|
.procname = "tcp_max_syn_backlog",
|
|
|
|
.data = &sysctl_max_syn_backlog,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_LOCAL_PORT_RANGE,
|
|
|
|
.procname = "ip_local_port_range",
|
|
|
|
.data = &sysctl_local_port_range,
|
|
|
|
.maxlen = sizeof(sysctl_local_port_range),
|
|
|
|
.mode = 0644,
|
2007-10-10 17:30:46 -07:00
|
|
|
.proc_handler = &ipv4_local_port_range,
|
|
|
|
.strategy = &ipv4_sysctl_local_port_range,
|
2005-04-16 15:20:36 -07:00
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_ALL,
|
|
|
|
.procname = "icmp_echo_ignore_all",
|
|
|
|
.data = &sysctl_icmp_echo_ignore_all,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,
|
|
|
|
.procname = "icmp_echo_ignore_broadcasts",
|
|
|
|
.data = &sysctl_icmp_echo_ignore_broadcasts,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,
|
|
|
|
.procname = "icmp_ignore_bogus_error_responses",
|
|
|
|
.data = &sysctl_icmp_ignore_bogus_error_responses,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2005-06-13 15:19:03 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
|
|
|
|
.procname = "icmp_errors_use_inbound_ifaddr",
|
|
|
|
.data = &sysctl_icmp_errors_use_inbound_ifaddr,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ROUTE,
|
|
|
|
.procname = "route",
|
|
|
|
.maxlen = 0,
|
|
|
|
.mode = 0555,
|
|
|
|
.child = ipv4_route_table
|
|
|
|
},
|
|
|
|
#ifdef CONFIG_IP_MULTICAST
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IGMP_MAX_MEMBERSHIPS,
|
|
|
|
.procname = "igmp_max_memberships",
|
|
|
|
.data = &sysctl_igmp_max_memberships,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IGMP_MAX_MSF,
|
|
|
|
.procname = "igmp_max_msf",
|
|
|
|
.data = &sysctl_igmp_max_msf,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_INET_PEER_THRESHOLD,
|
|
|
|
.procname = "inet_peer_threshold",
|
|
|
|
.data = &inet_peer_threshold,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_INET_PEER_MINTTL,
|
|
|
|
.procname = "inet_peer_minttl",
|
|
|
|
.data = &inet_peer_minttl,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_INET_PEER_MAXTTL,
|
|
|
|
.procname = "inet_peer_maxttl",
|
|
|
|
.data = &inet_peer_maxttl,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_INET_PEER_GC_MINTIME,
|
|
|
|
.procname = "inet_peer_gc_mintime",
|
|
|
|
.data = &inet_peer_gc_mintime,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_INET_PEER_GC_MAXTIME,
|
|
|
|
.procname = "inet_peer_gc_maxtime",
|
|
|
|
.data = &inet_peer_gc_maxtime,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ORPHAN_RETRIES,
|
|
|
|
.procname = "tcp_orphan_retries",
|
|
|
|
.data = &sysctl_tcp_orphan_retries,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_FACK,
|
|
|
|
.procname = "tcp_fack",
|
|
|
|
.data = &sysctl_tcp_fack,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_REORDERING,
|
|
|
|
.procname = "tcp_reordering",
|
|
|
|
.data = &sysctl_tcp_reordering,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ECN,
|
|
|
|
.procname = "tcp_ecn",
|
|
|
|
.data = &sysctl_tcp_ecn,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_DSACK,
|
|
|
|
.procname = "tcp_dsack",
|
|
|
|
.data = &sysctl_tcp_dsack,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MEM,
|
|
|
|
.procname = "tcp_mem",
|
|
|
|
.data = &sysctl_tcp_mem,
|
|
|
|
.maxlen = sizeof(sysctl_tcp_mem),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_WMEM,
|
|
|
|
.procname = "tcp_wmem",
|
|
|
|
.data = &sysctl_tcp_wmem,
|
|
|
|
.maxlen = sizeof(sysctl_tcp_wmem),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_RMEM,
|
|
|
|
.procname = "tcp_rmem",
|
|
|
|
.data = &sysctl_tcp_rmem,
|
|
|
|
.maxlen = sizeof(sysctl_tcp_rmem),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_APP_WIN,
|
|
|
|
.procname = "tcp_app_win",
|
|
|
|
.data = &sysctl_tcp_app_win,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ADV_WIN_SCALE,
|
|
|
|
.procname = "tcp_adv_win_scale",
|
|
|
|
.data = &sysctl_tcp_adv_win_scale,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_RATELIMIT,
|
|
|
|
.procname = "icmp_ratelimit",
|
|
|
|
.data = &sysctl_icmp_ratelimit,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_ICMP_RATEMASK,
|
|
|
|
.procname = "icmp_ratemask",
|
|
|
|
.data = &sysctl_icmp_ratemask,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_TW_REUSE,
|
|
|
|
.procname = "tcp_tw_reuse",
|
|
|
|
.data = &sysctl_tcp_tw_reuse,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_FRTO,
|
|
|
|
.procname = "tcp_frto",
|
|
|
|
.data = &sysctl_tcp_frto,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2007-02-27 11:09:49 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_FRTO_RESPONSE,
|
|
|
|
.procname = "tcp_frto_response",
|
|
|
|
.data = &sysctl_tcp_frto_response,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_LOW_LATENCY,
|
|
|
|
.procname = "tcp_low_latency",
|
|
|
|
.data = &sysctl_tcp_low_latency,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_IPV4_IPFRAG_SECRET_INTERVAL,
|
|
|
|
.procname = "ipfrag_secret_interval",
|
2007-10-15 02:33:45 -07:00
|
|
|
.data = &ip4_frags_ctl.secret_interval,
|
2005-04-16 15:20:36 -07:00
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_jiffies,
|
|
|
|
.strategy = &sysctl_jiffies
|
|
|
|
},
|
2005-12-14 00:14:27 -07:00
|
|
|
{
|
|
|
|
.procname = "ipfrag_max_dist",
|
|
|
|
.data = &sysctl_ipfrag_max_dist,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec_minmax,
|
|
|
|
.extra1 = &zero
|
|
|
|
},
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_NO_METRICS_SAVE,
|
|
|
|
.procname = "tcp_no_metrics_save",
|
|
|
|
.data = &sysctl_tcp_nometrics_save,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MODERATE_RCVBUF,
|
|
|
|
.procname = "tcp_moderate_rcvbuf",
|
|
|
|
.data = &sysctl_tcp_moderate_rcvbuf,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_TSO_WIN_DIVISOR,
|
|
|
|
.procname = "tcp_tso_win_divisor",
|
|
|
|
.data = &sysctl_tcp_tso_win_divisor,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
2005-06-23 12:19:55 -07:00
|
|
|
.ctl_name = NET_TCP_CONG_CONTROL,
|
|
|
|
.procname = "tcp_congestion_control",
|
2005-04-16 15:20:36 -07:00
|
|
|
.mode = 0644,
|
2005-06-23 12:19:55 -07:00
|
|
|
.maxlen = TCP_CA_NAME_MAX,
|
|
|
|
.proc_handler = &proc_tcp_congestion_control,
|
|
|
|
.strategy = &sysctl_tcp_congestion_control,
|
2005-04-16 15:20:36 -07:00
|
|
|
},
|
2005-11-10 18:09:53 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ABC,
|
|
|
|
.procname = "tcp_abc",
|
|
|
|
.data = &sysctl_tcp_abc,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
2006-03-20 18:53:41 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MTU_PROBING,
|
|
|
|
.procname = "tcp_mtu_probing",
|
|
|
|
.data = &sysctl_tcp_mtu_probing,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_BASE_MSS,
|
|
|
|
.procname = "tcp_base_mss",
|
|
|
|
.data = &sysctl_tcp_base_mss,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
2007-02-09 07:24:47 -07:00
|
|
|
{
|
2006-03-20 23:40:29 -07:00
|
|
|
.ctl_name = NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,
|
|
|
|
.procname = "tcp_workaround_signed_windows",
|
|
|
|
.data = &sysctl_tcp_workaround_signed_windows,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2006-05-23 18:02:55 -07:00
|
|
|
#ifdef CONFIG_NET_DMA
|
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_DMA_COPYBREAK,
|
|
|
|
.procname = "tcp_dma_copybreak",
|
|
|
|
.data = &sysctl_tcp_dma_copybreak,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
|
|
|
#endif
|
2006-06-13 22:33:04 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_SLOW_START_AFTER_IDLE,
|
|
|
|
.procname = "tcp_slow_start_after_idle",
|
|
|
|
.data = &sysctl_tcp_slow_start_after_idle,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec
|
|
|
|
},
|
2006-08-03 16:48:06 -07:00
|
|
|
#ifdef CONFIG_NETLABEL
|
|
|
|
{
|
|
|
|
.ctl_name = NET_CIPSOV4_CACHE_ENABLE,
|
|
|
|
.procname = "cipso_cache_enable",
|
|
|
|
.data = &cipso_v4_cache_enabled,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_CIPSOV4_CACHE_BUCKET_SIZE,
|
|
|
|
.procname = "cipso_cache_bucket_size",
|
|
|
|
.data = &cipso_v4_cache_bucketsize,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_CIPSOV4_RBM_OPTFMT,
|
|
|
|
.procname = "cipso_rbm_optfmt",
|
|
|
|
.data = &cipso_v4_rbm_optfmt,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.ctl_name = NET_CIPSOV4_RBM_STRICTVALID,
|
|
|
|
.procname = "cipso_rbm_strictvalid",
|
|
|
|
.data = &cipso_v4_rbm_strictvalid,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
|
|
|
#endif /* CONFIG_NETLABEL */
|
2006-11-09 17:32:06 -07:00
|
|
|
{
|
|
|
|
.procname = "tcp_available_congestion_control",
|
|
|
|
.maxlen = TCP_CA_BUF_MAX,
|
|
|
|
.mode = 0444,
|
|
|
|
.proc_handler = &proc_tcp_available_congestion_control,
|
|
|
|
},
|
2006-11-09 17:35:15 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_ALLOWED_CONG_CONTROL,
|
|
|
|
.procname = "tcp_allowed_congestion_control",
|
|
|
|
.maxlen = TCP_CA_BUF_MAX,
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_allowed_congestion_control,
|
|
|
|
.strategy = &strategy_allowed_congestion_control,
|
|
|
|
},
|
2007-03-25 19:21:45 -07:00
|
|
|
{
|
|
|
|
.ctl_name = NET_TCP_MAX_SSTHRESH,
|
|
|
|
.procname = "tcp_max_ssthresh",
|
|
|
|
.data = &sysctl_tcp_max_ssthresh,
|
|
|
|
.maxlen = sizeof(int),
|
|
|
|
.mode = 0644,
|
|
|
|
.proc_handler = &proc_dointvec,
|
|
|
|
},
|
2005-04-16 15:20:36 -07:00
|
|
|
{ .ctl_name = 0 }
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif /* CONFIG_SYSCTL */
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(ipv4_config);
|