kermel: Refactoring and separating dynamic signature-related structures and functions and implement hot-signature updates

kernel/dynamic_sign.h

@@ -0,0 +1,43 @@
+#ifndef __KSU_H_DYNAMIC_SIGN
+#define __KSU_H_DYNAMIC_SIGN
+
+#include <linux/types.h>
+#include "ksu.h"
+
+#define DYNAMIC_SIGN_FILE_MAGIC 0x7f445347 // 'DSG', u32
+#define DYNAMIC_SIGN_FILE_VERSION 1 // u32
+#define KERNEL_SU_DYNAMIC_SIGN "/data/adb/ksu/.dynamic_sign"
+
+struct dynamic_sign_config {
+    unsigned int size;
+    char hash[65];
+    int is_set;
+};
+
+struct manager_info {
+    uid_t uid;
+    int signature_index;
+    bool is_active;
+};
+
+// Dynamic sign operations
+int ksu_handle_dynamic_sign(struct dynamic_sign_user_config *config);
+void ksu_dynamic_sign_init(void);
+void ksu_dynamic_sign_exit(void);
+bool ksu_load_dynamic_sign(void);
+bool ksu_is_dynamic_sign_enabled(void);
+
+// Multi-manager operations
+void ksu_add_manager(uid_t uid, int signature_index);
+void ksu_remove_manager(uid_t uid);
+bool ksu_is_any_manager(uid_t uid);
+int ksu_get_manager_signature_index(uid_t uid);
+int ksu_get_active_managers(struct manager_list_info *info);
+
+// Multi-manager APK verification
+bool ksu_is_multi_manager_apk(char *path, int *signature_index);
+
+// Get dynamic sign configuration for signature verification
+bool ksu_get_dynamic_sign_config(unsigned int *size, const char **hash);
+
+#endif