#include <linux/kernel.h>
#include <linux/module.h>
#include<linux/sched.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
#endif
unsigned int status;
enum { STATUS_ENTRY=555,
MYMOD_DIR_ENTRY,
MYMOD_FS_DIR_ENTRY
};
/* Creating the /proc/sys tree
* * fs -> my_mod -> {status}
* */
struct ctl_table inner_mymod_ctl_table[] = {
{
STATUS_ENTRY,"status",&status,sizeof(int),
0666,NULL,&proc_dointvec,NULL
},
{0}
};
struct ctl_table mymod_ctl_table[] = {
{
MYMOD_DIR_ENTRY,"my_mod",0,0,0,inner_mymod_ctl_table
},
{0}
};
struct ctl_table fs_mymod_ctl_table[] = {
{
MYMOD_FS_DIR_ENTRY,"fs",0,0,0,mymod_ctl_table
},
{0}
};
static struct ctl_table_header *inner_mymod_ctl_header;
static struct ctl_table_header *mymod_ctl_header;
static struct ctl_table_header *fs_mymod_ctl_header;
/* Initialize the module */
int init_module()
{
printk("Hello, world - this is the kernel speaking\n");
#ifdef CONFIG_PROC_FS
/* Entry for /proc/sys/fs/my_mod/status */
if(!(fs_mymod_ctl_header = register_sysctl_table((struct ctl_table *)fs_mymod_ctl_table,0)))
printk(KERN_INFO "Unable to create register_sysctl: /proc/sys/ variables ");
#endif
return 0;
}
/* Cleanup - undid whatever init_module did */
void cleanup_module()
{
printk("Short is the life of a kernel module\n");
if(fs_mymod_ctl_header)
unregister_sysctl_table((struct ctl_table_header *)fs_mymod_ctl_header);
}
On Tue, 2005-12-13 at 21:07 +0900, Adil Mujeeb wrote:
> Hi Could you please tell me how to set that?
> BTW the proc entry has read permission to everyone.
is easiest to do if you post your code or, better, a URL to the full
source code...
>
