6b8d9117cc
The timeout entries are sizeof(int) rather than sizeof(long), which means that when they were getting read we'd also leak kernel memory to userspace along with the timeout values. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
|
|
* sysctl_net_llc.c: sysctl interface to LLC net subsystem.
|
|
*
|
|
* Arnaldo Carvalho de Melo <acme@conectiva.com.br>
|
|
*/
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/init.h>
|
|
#include <linux/sysctl.h>
|
|
#include <net/net_namespace.h>
|
|
#include <net/llc.h>
|
|
|
|
#ifndef CONFIG_SYSCTL
|
|
#error This file should not be compiled without CONFIG_SYSCTL defined
|
|
#endif
|
|
|
|
static struct ctl_table llc2_timeout_table[] = {
|
|
{
|
|
.procname = "ack",
|
|
.data = &sysctl_llc2_ack_timeout,
|
|
.maxlen = sizeof(sysctl_llc2_ack_timeout),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
},
|
|
{
|
|
.procname = "busy",
|
|
.data = &sysctl_llc2_busy_timeout,
|
|
.maxlen = sizeof(sysctl_llc2_busy_timeout),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
},
|
|
{
|
|
.procname = "p",
|
|
.data = &sysctl_llc2_p_timeout,
|
|
.maxlen = sizeof(sysctl_llc2_p_timeout),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
},
|
|
{
|
|
.procname = "rej",
|
|
.data = &sysctl_llc2_rej_timeout,
|
|
.maxlen = sizeof(sysctl_llc2_rej_timeout),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
},
|
|
{ },
|
|
};
|
|
|
|
static struct ctl_table llc_station_table[] = {
|
|
{ },
|
|
};
|
|
|
|
static struct ctl_table_header *llc2_timeout_header;
|
|
static struct ctl_table_header *llc_station_header;
|
|
|
|
int __init llc_sysctl_init(void)
|
|
{
|
|
llc2_timeout_header = register_net_sysctl(&init_net, "net/llc/llc2/timeout", llc2_timeout_table);
|
|
llc_station_header = register_net_sysctl(&init_net, "net/llc/station", llc_station_table);
|
|
|
|
if (!llc2_timeout_header || !llc_station_header) {
|
|
llc_sysctl_exit();
|
|
return -ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void llc_sysctl_exit(void)
|
|
{
|
|
if (llc2_timeout_header) {
|
|
unregister_net_sysctl_table(llc2_timeout_header);
|
|
llc2_timeout_header = NULL;
|
|
}
|
|
if (llc_station_header) {
|
|
unregister_net_sysctl_table(llc_station_header);
|
|
llc_station_header = NULL;
|
|
}
|
|
}
|