proc_test.c
/*
*proc ipsec test
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/stat.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/fs.h>
#include <asm/uaccess.h>
#define IPSEC_CONNTRACK "ipsec_conntrack"
MODULE_AUTHOR("Qxl");
MODULE_DESCRIPTION("Proc Test Module");
MODULE_LICENSE("GPL");
static char msg[255] = {0};
static struct proc_dir_entry * p_entry = NULL;
static ssize_t ipsec_conntrack_read(struct file * file,char *data,size_t len,loff_t *offset)
{
printk("offset %d\n",(int)*offset);
if(*offset > 0) return 0;
if(copy_to_user(data,msg,strlen(msg)) < 0)
return -1;
*offset += strlen(msg);
return strlen(msg);
}
static ssize_t ipsec_conntrack_write(struct file *file, const char *data,size_t len,loff_t *offset)
{
if(copy_from_user(msg,(void *)data,len))
return -EFAULT;
msg[len - 1] = '\0';
printk("%s\n", msg);
return len;
}
static struct file_operations ipsec_conntrack_ops =
{
read:ipsec_conntrack_read,
write:ipsec_conntrack_write,
};
static int __init proc_ipsec_init()
{
printk("module_init\n");
p_entry = create_proc_entry(IPSEC_CONNTRACK,S_IFREG | S_IRUGO ,proc_net);
&nbs
