def DMAR(val):
"""Create class based on decode of an DMAR table from filename."""
base_length = ctypes.sizeof(dmar_factory(list()))
data = open(val, mode='rb').read()
buf = ctypes.create_string_buffer(data, len(data))
addr = ctypes.addressof(buf)
hdr = TableHeader.from_address(addr)
field_list = dmar_subtable_list(addr + base_length, hdr.length - base_length)
return dmar_factory(field_list).from_buffer_copy(data)
def APIC(val):
"""Create class based on decode of an APIC table from filename."""
preamble_length = ctypes.sizeof(apic_factory(list()))
data = open(val, mode='rb').read()
buf = ctypes.create_string_buffer(data, len(data))
addr = ctypes.addressof(buf)
hdr = TableHeader.from_address(addr)
subtable_list = apic_subtable_list(addr + preamble_length, hdr.length - preamble_length)
return apic_factory(subtable_list).from_buffer_copy(data)
def RTCT(val):
"""Create class based on decode of an RTCT table from filename."""
base_length = ctypes.sizeof(rtct_factory(list(), 0))
data = open(val, mode='rb').read()
buf = ctypes.create_string_buffer(data, len(data))
addr = ctypes.addressof(buf)
hdr = TableHeader.from_address(addr)
version, field_list = rtct_version_and_subtable_list(
addr + base_length, hdr.length - base_length)
return rtct_factory(field_list, version).from_buffer_copy(data)
def FACP(val):
"""Create class based on decode of an FACP table from filename."""
data = open(val, mode='rb').read()
buf = ctypes.create_string_buffer(data, len(data))
addr = ctypes.addressof(buf)
hdr = TableHeader.from_address(addr)
if hdr.revision < 3:
cls = FACP_v1
elif hdr.revision == 3:
cls = FACP_v3
elif hdr.revision == 4:
cls = FACP_v4
else:
cls = FACP_v5
return cls.from_buffer_copy(data)