support for EL8 kernels

Author: Corey Henderson

scripts/run_tests.sh

@@ -8,6 +8,12 @@ MODULE=$1
 # a set of simple, not-well-thought-out tests I occasionally run to make
 # sure everything still works, or at least appears to work :P
 
+setfattr --help &> /dev/null
+if [ $? -ne 0 ]; then
+	echo "The setfattr command is not installed. Please install the 'attr' package to run tests."
+	exit 1
+fi
+
 if [ -z "$UID" ] || [ $UID != 0 ]; then
 
 	echo "Tests must be ran as the root user."

tpe_module.c

@@ -128,7 +128,11 @@ fopskit_hook_handler(security_ptrace_access_check) {
 
 /* sys_newuname */
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
+fopskit_hook_handler(__x64_sys_newuname) {
+#else
 fopskit_hook_handler(sys_newuname) {
+#endif
 	if (tpe_hide_uname && !UID_IS_TRUSTED(get_task_uid(current)))
 		TPE_EXTRAS_NOEXEC("uname");
 }
@@ -173,7 +177,11 @@ static struct fops_hook tpe_hooks_extras[] = {
 	fops_hook_val(pid_revalidate),
 	fops_hook_val(m_show),
 	fops_hook_val(kallsyms_open),
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
+	fops_hook_val(__x64_sys_newuname),
+#else
 	fops_hook_val(sys_newuname),
+#endif
 	fops_hook_val(proc_sys_read),
 };