ksud: fix incorrect umask

userspace/ksud/src/event.rs

@@ -4,7 +4,7 @@ use std::{collections::HashMap, path::Path};
 
 use crate::{
     assets, defs, mount,
-    utils::{ensure_clean_dir, ensure_dir_exists},
+    utils::{ensure_clean_dir, ensure_dir_exists, self},
 };
 
 fn mount_partition(partition: &str, lowerdir: &mut Vec<String>) -> Result<()> {
@@ -89,6 +89,9 @@ pub fn mount_systemlessly(module_dir: &str) -> Result<()> {
 
 pub fn on_post_data_fs() -> Result<()> {
     crate::ksu::report_post_fs_data();
+
+    utils::umask(0);
+
     let module_update_img = defs::MODULE_UPDATE_IMG;
     let module_img = defs::MODULE_IMG;
     let module_dir = defs::MODULE_DIR;
@@ -173,6 +176,9 @@ pub fn on_post_data_fs() -> Result<()> {
 }
 
 pub fn on_services() -> Result<()> {
+
+    utils::umask(0);
+
     // check safe mode first.
     if crate::utils::is_safe_mode() {
         warn!("safe mode, skip module service scripts");

userspace/ksud/src/utils.rs

@@ -115,3 +115,13 @@ pub fn unshare_mnt_ns() -> Result<()> {
     ensure!(ret == 0, "unshare mnt ns failed");
     Ok(())
 }
+
+#[cfg(any(target_os = "linux", target_os = "android"))]
+pub fn umask(mask: u32) {
+    unsafe { libc::umask(mask) };
+}
+
+#[cfg(not(any(target_os = "linux", target_os = "android")))]
+pub fn umask(_mask: u32) {
+    unimplemented!("umask is not supported on this platform")
+}