/**
* ccs_run_loader - Start /sbin/ccs-init .
*
* @unused: Not used.
*
* Returns PID of /sbin/ccs-init on success, negative value otherwise.
*/
static int ccs_run_loader(void *unused)
{
char *argv[2];
char *envp[3];
printk(KERN_INFO "Calling %s to load policy. Please wait.\n",
ccs_loader);
argv[0] = (char *) ccs_loader;
argv[1] = NULL;
envp[0] = "HOME=/";
envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
envp[2] = NULL;
return exec_usermodehelper(argv[0], argv, envp);
}
/*
* This is the task which runs the usermode application
*/
static int ____call_usermodehelper(void *data)
{
struct subprocess_info *sub_info = data;
int retval;
retval = -EPERM;
if (current->fs->root)
retval = exec_usermodehelper(sub_info->path, sub_info->argv, sub_info->envp);
/* Exec failed? */
sub_info->retval = (pid_t)retval;
do_exit(0);
}
static int exec_modprobe(void * module_name)
{
static char * envp[] = { "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
char *argv[] = { modprobe_path, "-s", "-k", "--", (char*)module_name, NULL };
int ret;
ret = exec_usermodehelper(modprobe_path, argv, envp);
if (ret)
{
printk(KERN_ERR
"kmod: failed to exec %s -s -k %s, errno = %d\n",
modprobe_path, (char*) module_name, errno);
}
return ret;
}
