kernel: Add the real UID by parsing the UID from the /data/user_de/0

kernel/core_hook.c

@@ -203,25 +203,18 @@ int ksu_handle_rename(struct dentry *old_dentry, struct dentry *new_dentry)
 		return 0;
 	}
 
-	// /data/system/packages.list.tmp -> /data/system/packages.list
-	if (strcmp(new_dentry->d_iname, "packages.list")) {
-		return 0;
-	}
-
-	char path[128];
-	char *buf = dentry_path_raw(new_dentry, path, sizeof(path));
-	if (IS_ERR(buf)) {
-		pr_err("dentry_path_raw failed.\n");
-		return 0;
-	}
-
-	if (!strstr(buf, "/system/packages.list")) {
+	//  It still monitors changes to certain system files to trigger scans, but does not rely on packages.list.
+	if (strstr(new_dentry->d_iname, "packages") &&
+		strstr(new_dentry->d_iname, "list")) {
+		char path[128];
+		char *buf = dentry_path_raw(new_dentry, path, sizeof(path));
+		if (!IS_ERR(buf) && strstr(buf, "/system/")) {
+			pr_info("System package change detected: %s -> %s, triggering user scan\n", 
+				old_dentry->d_iname, new_dentry->d_iname);
+			track_throne();
+		}
 		return 0;
 	}
-	pr_info("renameat: %s -> %s, new path: %s\n", old_dentry->d_iname,
-		new_dentry->d_iname, buf);
-
-	track_throne();
 
 	return 0;
 }

kernel/kernel_compat.h

@@ -5,6 +5,36 @@
 #include <linux/version.h>
 #include "ss/policydb.h"
 #include "linux/key.h"
+#include <linux/list.h>
+
+/**
+ * list_count_nodes - count the number of nodes in a list
+ * @head: the head of the list
+ *
+ * This function iterates over the list starting from @head and counts
+ * the number of nodes in the list. It does not modify the list.
+ *
+ * Context: Any context. The function is safe to call in any context,
+ *          including interrupt context, as it does not sleep or allocate
+ *          memory.
+ *
+ * Return: the number of nodes in the list (excluding the head)
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)
+static inline __maybe_unused size_t list_count_nodes(const struct list_head *head)
+{
+    const struct list_head *pos;
+    size_t count = 0;
+
+    if (!head)
+        return 0;
+
+    list_for_each(pos, head)
+        count++;
+
+	return count;
+}
+#endif
 
 /*
  * Adapt to Huawei HISI kernel without affecting other kernels ,