linux-sg2042/net/core/sysctl_net_core.c

183 lines
3.8 KiB
C

/* -*- linux-c -*-
* sysctl_net_core.c: sysctl interface to net core subsystem.
*
* Begun April 1, 1996, Mike Shaver.
* Added /proc/sys/net/core directory entry (empty =) ). [MS]
*/
#include <linux/mm.h>
#include <linux/sysctl.h>
#include <linux/config.h>
#include <linux/module.h>
#ifdef CONFIG_SYSCTL
extern int netdev_max_backlog;
extern int weight_p;
extern int no_cong_thresh;
extern int no_cong;
extern int lo_cong;
extern int mod_cong;
extern int netdev_fastroute;
extern int net_msg_cost;
extern int net_msg_burst;
extern __u32 sysctl_wmem_max;
extern __u32 sysctl_rmem_max;
extern __u32 sysctl_wmem_default;
extern __u32 sysctl_rmem_default;
extern int sysctl_core_destroy_delay;
extern int sysctl_optmem_max;
extern int sysctl_somaxconn;
#ifdef CONFIG_NET_DIVERT
extern char sysctl_divert_version[];
#endif /* CONFIG_NET_DIVERT */
/*
* This strdup() is used for creating copies of network
* device names to be handed over to sysctl.
*/
char *net_sysctl_strdup(const char *s)
{
char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
if (rv)
strcpy(rv, s);
return rv;
}
ctl_table core_table[] = {
#ifdef CONFIG_NET
{
.ctl_name = NET_CORE_WMEM_MAX,
.procname = "wmem_max",
.data = &sysctl_wmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_MAX,
.procname = "rmem_max",
.data = &sysctl_rmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_WMEM_DEFAULT,
.procname = "wmem_default",
.data = &sysctl_wmem_default,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_DEFAULT,
.procname = "rmem_default",
.data = &sysctl_rmem_default,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_DEV_WEIGHT,
.procname = "dev_weight",
.data = &weight_p,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MAX_BACKLOG,
.procname = "netdev_max_backlog",
.data = &netdev_max_backlog,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_NO_CONG_THRESH,
.procname = "no_cong_thresh",
.data = &no_cong_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_NO_CONG,
.procname = "no_cong",
.data = &no_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_LO_CONG,
.procname = "lo_cong",
.data = &lo_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MOD_CONG,
.procname = "mod_cong",
.data = &mod_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MSG_COST,
.procname = "message_cost",
.data = &net_msg_cost,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
.strategy = &sysctl_jiffies,
},
{
.ctl_name = NET_CORE_MSG_BURST,
.procname = "message_burst",
.data = &net_msg_burst,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_CORE_OPTMEM_MAX,
.procname = "optmem_max",
.data = &sysctl_optmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
#ifdef CONFIG_NET_DIVERT
{
.ctl_name = NET_CORE_DIVERT_VERSION,
.procname = "divert_version",
.data = (void *)sysctl_divert_version,
.maxlen = 32,
.mode = 0444,
.proc_handler = &proc_dostring
},
#endif /* CONFIG_NET_DIVERT */
#endif /* CONFIG_NET */
{
.ctl_name = NET_CORE_SOMAXCONN,
.procname = "somaxconn",
.data = &sysctl_somaxconn,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{ .ctl_name = 0 }
};
EXPORT_SYMBOL(net_sysctl_strdup);
#endif