1 #ifndef NVRAM_HELPER_H 2 #define NVRAM_HELPER_H 3 4 #include <IOKit/IOKitLib.h> 5 #include <CoreFoundation/CoreFoundation.h> 6 7 typedef enum{ 8 OP_SET = 0, 9 OP_GET, 10 OP_DEL, 11 OP_DEL_RET, 12 OP_RES, 13 OP_OBL, 14 OP_SYN 15 } nvram_op; 16 17 #define SystemNVRAMGuidString "40A0DDD2-77F8-4392-B4A3-1E7304206516" 18 #define CommonNVRAMGuidString "7C436110-AB2A-4BBB-A880-FE41995C9F82" 19 #define RandomNVRAMGuidString "11112222-77F8-4392-B4A3-1E7304206516" 20 21 #define KernelOnlyVariablePrefix "krn." 22 #define kIONVRAMForceSyncNowPropertyKey "IONVRAM-FORCESYNCNOW-PROPERTY" 23 #define DefaultSetVal "1234" 24 25 io_registry_entry_t CreateOptionsRef(void); 26 void ReleaseOptionsRef(io_registry_entry_t optionsRef); 27 void TestVarOp(nvram_op op, const char *var, const char *val, kern_return_t exp_ret, io_registry_entry_t optionsRef); 28 CFTypeID GetVarType(const char *name, io_registry_entry_t optionsRef); 29 #endif /* NVRAM_HELPER_H */ 30