823 строки
20 KiB
C
823 строки
20 KiB
C
/*
|
|
* sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem.
|
|
*
|
|
* $Id: sysctl_net_ipv4.c,v 1.50 2001/10/20 00:00:11 davem Exp $
|
|
*
|
|
* Begun April 1, 1996, Mike Shaver.
|
|
* Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS]
|
|
*/
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/module.h>
|
|
#include <linux/sysctl.h>
|
|
#include <linux/igmp.h>
|
|
#include <linux/inetdevice.h>
|
|
#include <linux/seqlock.h>
|
|
#include <linux/init.h>
|
|
#include <net/snmp.h>
|
|
#include <net/icmp.h>
|
|
#include <net/ip.h>
|
|
#include <net/route.h>
|
|
#include <net/tcp.h>
|
|
#include <net/udp.h>
|
|
#include <net/cipso_ipv4.h>
|
|
#include <net/inet_frag.h>
|
|
|
|
static int zero;
|
|
static int tcp_retr1_max = 255;
|
|
static int ip_local_port_range_min[] = { 1, 1 };
|
|
static int ip_local_port_range_max[] = { 65535, 65535 };
|
|
|
|
extern seqlock_t sysctl_port_range_lock;
|
|
extern int sysctl_local_port_range[2];
|
|
|
|
/* Update system visible IP port range */
|
|
static void set_local_port_range(int range[2])
|
|
{
|
|
write_seqlock(&sysctl_port_range_lock);
|
|
sysctl_local_port_range[0] = range[0];
|
|
sysctl_local_port_range[1] = range[1];
|
|
write_sequnlock(&sysctl_port_range_lock);
|
|
}
|
|
|
|
/* Validate changes from /proc interface. */
|
|
static int ipv4_local_port_range(ctl_table *table, int write, struct file *filp,
|
|
void __user *buffer,
|
|
size_t *lenp, loff_t *ppos)
|
|
{
|
|
int ret;
|
|
int range[2] = { sysctl_local_port_range[0],
|
|
sysctl_local_port_range[1] };
|
|
ctl_table tmp = {
|
|
.data = &range,
|
|
.maxlen = sizeof(range),
|
|
.mode = table->mode,
|
|
.extra1 = &ip_local_port_range_min,
|
|
.extra2 = &ip_local_port_range_max,
|
|
};
|
|
|
|
ret = proc_dointvec_minmax(&tmp, write, filp, buffer, lenp, ppos);
|
|
|
|
if (write && ret == 0) {
|
|
if (range[1] < range[0])
|
|
ret = -EINVAL;
|
|
else
|
|
set_local_port_range(range);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Validate changes from sysctl interface. */
|
|
static int ipv4_sysctl_local_port_range(ctl_table *table, int __user *name,
|
|
int nlen, void __user *oldval,
|
|
size_t __user *oldlenp,
|
|
void __user *newval, size_t newlen)
|
|
{
|
|
int ret;
|
|
int range[2] = { sysctl_local_port_range[0],
|
|
sysctl_local_port_range[1] };
|
|
ctl_table tmp = {
|
|
.data = &range,
|
|
.maxlen = sizeof(range),
|
|
.mode = table->mode,
|
|
.extra1 = &ip_local_port_range_min,
|
|
.extra2 = &ip_local_port_range_max,
|
|
};
|
|
|
|
ret = sysctl_intvec(&tmp, name, nlen, oldval, oldlenp, newval, newlen);
|
|
if (ret == 0 && newval && newlen) {
|
|
if (range[1] < range[0])
|
|
ret = -EINVAL;
|
|
else
|
|
set_local_port_range(range);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int proc_tcp_congestion_control(ctl_table *ctl, int write, struct file * filp,
|
|
void __user *buffer, size_t *lenp, loff_t *ppos)
|
|
{
|
|
char val[TCP_CA_NAME_MAX];
|
|
ctl_table tbl = {
|
|
.data = val,
|
|
.maxlen = TCP_CA_NAME_MAX,
|
|
};
|
|
int ret;
|
|
|
|
tcp_get_default_congestion_control(val);
|
|
|
|
ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
|
|
if (write && ret == 0)
|
|
ret = tcp_set_default_congestion_control(val);
|
|
return ret;
|
|
}
|
|
|
|
static int sysctl_tcp_congestion_control(ctl_table *table, int __user *name,
|
|
int nlen, void __user *oldval,
|
|
size_t __user *oldlenp,
|
|
void __user *newval, size_t newlen)
|
|
{
|
|
char val[TCP_CA_NAME_MAX];
|
|
ctl_table tbl = {
|
|
.data = val,
|
|
.maxlen = TCP_CA_NAME_MAX,
|
|
};
|
|
int ret;
|
|
|
|
tcp_get_default_congestion_control(val);
|
|
ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen);
|
|
if (ret == 1 && newval && newlen)
|
|
ret = tcp_set_default_congestion_control(val);
|
|
return ret;
|
|
}
|
|
|
|
static int proc_tcp_available_congestion_control(ctl_table *ctl,
|
|
int write, struct file * filp,
|
|
void __user *buffer, size_t *lenp,
|
|
loff_t *ppos)
|
|
{
|
|
ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
|
|
int ret;
|
|
|
|
tbl.data = kmalloc(tbl.maxlen, GFP_USER);
|
|
if (!tbl.data)
|
|
return -ENOMEM;
|
|
tcp_get_available_congestion_control(tbl.data, TCP_CA_BUF_MAX);
|
|
ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
|
|
kfree(tbl.data);
|
|
return ret;
|
|
}
|
|
|
|
static int proc_allowed_congestion_control(ctl_table *ctl,
|
|
int write, struct file * filp,
|
|
void __user *buffer, size_t *lenp,
|
|
loff_t *ppos)
|
|
{
|
|
ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
|
|
int ret;
|
|
|
|
tbl.data = kmalloc(tbl.maxlen, GFP_USER);
|
|
if (!tbl.data)
|
|
return -ENOMEM;
|
|
|
|
tcp_get_allowed_congestion_control(tbl.data, tbl.maxlen);
|
|
ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos);
|
|
if (write && ret == 0)
|
|
ret = tcp_set_allowed_congestion_control(tbl.data);
|
|
kfree(tbl.data);
|
|
return ret;
|
|
}
|
|
|
|
static int strategy_allowed_congestion_control(ctl_table *table, int __user *name,
|
|
int nlen, void __user *oldval,
|
|
size_t __user *oldlenp,
|
|
void __user *newval,
|
|
size_t newlen)
|
|
{
|
|
ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
|
|
int ret;
|
|
|
|
tbl.data = kmalloc(tbl.maxlen, GFP_USER);
|
|
if (!tbl.data)
|
|
return -ENOMEM;
|
|
|
|
tcp_get_available_congestion_control(tbl.data, tbl.maxlen);
|
|
ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen);
|
|
if (ret == 1 && newval && newlen)
|
|
ret = tcp_set_allowed_congestion_control(tbl.data);
|
|
kfree(tbl.data);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
static struct ctl_table ipv4_table[] = {
|
|
{
|
|
.ctl_name = NET_IPV4_TCP_TIMESTAMPS,
|
|
.procname = "tcp_timestamps",
|
|
.data = &sysctl_tcp_timestamps,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_TCP_WINDOW_SCALING,
|
|
.procname = "tcp_window_scaling",
|
|
.data = &sysctl_tcp_window_scaling,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_TCP_SACK,
|
|
.procname = "tcp_sack",
|
|
.data = &sysctl_tcp_sack,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_TCP_RETRANS_COLLAPSE,
|
|
.procname = "tcp_retrans_collapse",
|
|
.data = &sysctl_tcp_retrans_collapse,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_DEFAULT_TTL,
|
|
.procname = "ip_default_ttl",
|
|
.data = &sysctl_ip_default_ttl,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &ipv4_doint_and_flush,
|
|
.strategy = &ipv4_doint_and_flush_strategy,
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_NO_PMTU_DISC,
|
|
.procname = "ip_no_pmtu_disc",
|
|
.data = &ipv4_config.no_pmtu_disc,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_NONLOCAL_BIND,
|
|
.procname = "ip_nonlocal_bind",
|
|
.data = &sysctl_ip_nonlocal_bind,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_IPV4_TCP_SYN_RETRIES,
|
|
.procname = "tcp_syn_retries",
|
|
.data = &sysctl_tcp_syn_retries,
|
|
.maxlen = sizeof(int),
|
|
.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",
|
|
.data = &tcp_death_row.sysctl_max_tw_buckets,
|
|
.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_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",
|
|
.data = &tcp_death_row.sysctl_tw_recycle,
|
|
.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,
|
|
.proc_handler = &ipv4_local_port_range,
|
|
.strategy = &ipv4_sysctl_local_port_range,
|
|
},
|
|
{
|
|
.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
|
|
},
|
|
{
|
|
.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
|
|
},
|
|
{
|
|
.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
|
|
},
|
|
{
|
|
.ctl_name = NET_TCP_FRTO_RESPONSE,
|
|
.procname = "tcp_frto_response",
|
|
.data = &sysctl_tcp_frto_response,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.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_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,
|
|
},
|
|
{
|
|
.ctl_name = NET_TCP_CONG_CONTROL,
|
|
.procname = "tcp_congestion_control",
|
|
.mode = 0644,
|
|
.maxlen = TCP_CA_NAME_MAX,
|
|
.proc_handler = &proc_tcp_congestion_control,
|
|
.strategy = &sysctl_tcp_congestion_control,
|
|
},
|
|
{
|
|
.ctl_name = NET_TCP_ABC,
|
|
.procname = "tcp_abc",
|
|
.data = &sysctl_tcp_abc,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec,
|
|
},
|
|
{
|
|
.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,
|
|
},
|
|
{
|
|
.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
|
|
},
|
|
#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
|
|
{
|
|
.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
|
|
},
|
|
#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 */
|
|
{
|
|
.procname = "tcp_available_congestion_control",
|
|
.maxlen = TCP_CA_BUF_MAX,
|
|
.mode = 0444,
|
|
.proc_handler = &proc_tcp_available_congestion_control,
|
|
},
|
|
{
|
|
.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,
|
|
},
|
|
{
|
|
.ctl_name = NET_TCP_MAX_SSTHRESH,
|
|
.procname = "tcp_max_ssthresh",
|
|
.data = &sysctl_tcp_max_ssthresh,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "udp_mem",
|
|
.data = &sysctl_udp_mem,
|
|
.maxlen = sizeof(sysctl_udp_mem),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec_minmax,
|
|
.strategy = &sysctl_intvec,
|
|
.extra1 = &zero
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "udp_rmem_min",
|
|
.data = &sysctl_udp_rmem_min,
|
|
.maxlen = sizeof(sysctl_udp_rmem_min),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec_minmax,
|
|
.strategy = &sysctl_intvec,
|
|
.extra1 = &zero
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "udp_wmem_min",
|
|
.data = &sysctl_udp_wmem_min,
|
|
.maxlen = sizeof(sysctl_udp_wmem_min),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec_minmax,
|
|
.strategy = &sysctl_intvec,
|
|
.extra1 = &zero
|
|
},
|
|
{ .ctl_name = 0 }
|
|
};
|
|
|
|
struct ctl_path net_ipv4_ctl_path[] = {
|
|
{ .procname = "net", .ctl_name = CTL_NET, },
|
|
{ .procname = "ipv4", .ctl_name = NET_IPV4, },
|
|
{ },
|
|
};
|
|
EXPORT_SYMBOL_GPL(net_ipv4_ctl_path);
|
|
|
|
static __init int sysctl_ipv4_init(void)
|
|
{
|
|
struct ctl_table_header *hdr;
|
|
|
|
hdr = register_sysctl_paths(net_ipv4_ctl_path, ipv4_table);
|
|
return hdr == NULL ? -ENOMEM : 0;
|
|
}
|
|
|
|
__initcall(sysctl_ipv4_init);
|