#include <linux/kallsyms.h>
#include <linux/nsproxy.h>
+#include <linux/magic.h>
+#include <linux/slab.h>
+#include <linux/module.h> /* Specifically, a module */
+#include <linux/kernel.h> /* We're doing kernel work */
+#include <linux/proc_fs.h> /* Necessary because we use the proc fs */
+
#define VERSION_STR "0.0.1"
#ifndef CONFIG_X86_64
struct dentry *parent = nd->path.dentry;
struct inode *pinode = parent->d_inode;
-
-
if (pinode->i_sb->s_magic == PROC_SUPER_MAGIC
&& current->nsproxy->mnt_ns!=init_task.nsproxy->mnt_ns) {
{
unregister_kretprobe(&fast_probe);
unregister_kretprobe(&slow_probe);
- unregister_jprobe(&dolast_probe);
+ unregister_jprobe(&dolast_probe);
struct acl_entry *entry;
int i;
return count;
}
+static const struct file_operations procprotect_fops = {
+ .owner = THIS_MODULE,
+ .write = procfile_write
+};
+
static int __init procprotect_init(void)
{
int ret;
}
fast_probe.kp.addr =
(kprobe_opcode_t *) kallsyms_lookup_name("lookup_fast");
+
if (!fast_probe.kp.addr) {
printk("Couldn't find %s to plant kretprobe\n", "lookup_fast");
return -1;
slow_probe.kp.addr =
(kprobe_opcode_t *) kallsyms_lookup_name("lookup_slow");
+
if (!slow_probe.kp.addr) {
printk("Couldn't find %s to plant kretprobe\n", "lookup_slow");
return -1;
printk("Planted kretprobe at %p, handler addr %p\n",
slow_probe.kp.addr, slow_probe.handler);
- proc_entry = create_proc_entry("procprotect", 0644, NULL);
- proc_entry->write_proc = procfile_write;
+ proc_entry = proc_create("procprotect", 0644, NULL, &procprotect_fops);
add_entry("/proc/sysrq-trigger");
return ret;