mirror of
https://github.com/acidanthera/audk.git
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7438a85bf1
There are two type variable header and their size are different, need to use matched size when calculating offset info, otherwise it'll destroy other variables content when patching. Signed-off-by: Chen, Lin Z <lin.z.chen@intel.com> Reviewed-by: Bob Feng <bob.c.feng@intel.com>
422 lines
19 KiB
Python
422 lines
19 KiB
Python
# Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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# This file is used to collect the Variable checking information
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#
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# #
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# Import Modules
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#
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from struct import pack, unpack
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import collections
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import copy
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from Common.VariableAttributes import VariableAttributes
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from Common.Misc import *
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import collections
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import Common.DataType as DataType
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import Common.GlobalData as GlobalData
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var_info = collections.namedtuple("uefi_var", "pcdindex,pcdname,defaultstoragename,skuname,var_name, var_guid, var_offset,var_attribute,pcd_default_value, default_value, data_type,PcdDscLine,StructurePcd")
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NvStorageHeaderSize = 28
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VariableHeaderSize = 32
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AuthenticatedVariableHeaderSize = 60
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class VariableMgr(object):
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def __init__(self, DefaultStoreMap, SkuIdMap):
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self.VarInfo = []
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self.DefaultStoreMap = DefaultStoreMap
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self.SkuIdMap = SkuIdMap
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self.VpdRegionSize = 0
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self.VpdRegionOffset = 0
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self.NVHeaderBuff = None
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self.VarDefaultBuff = None
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self.VarDeltaBuff = None
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def append_variable(self, uefi_var):
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self.VarInfo.append(uefi_var)
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def SetVpdRegionMaxSize(self, maxsize):
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self.VpdRegionSize = maxsize
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def SetVpdRegionOffset(self, vpdoffset):
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self.VpdRegionOffset = vpdoffset
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def PatchNVStoreDefaultMaxSize(self, maxsize):
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if not self.NVHeaderBuff:
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return ""
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self.NVHeaderBuff = self.NVHeaderBuff[:8] + pack("=Q", maxsize)
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default_var_bin = VariableMgr.format_data(self.NVHeaderBuff + self.VarDefaultBuff + self.VarDeltaBuff)
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value_str = "{"
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default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
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value_str += ",".join(default_var_bin_strip)
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value_str += "}"
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return value_str
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def combine_variable(self):
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indexedvarinfo = collections.OrderedDict()
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for item in self.VarInfo:
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if (item.skuname, item.defaultstoragename, item.var_name, item.var_guid) not in indexedvarinfo:
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indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid) ] = []
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indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid)].append(item)
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for key in indexedvarinfo:
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sku_var_info_offset_list = indexedvarinfo[key]
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sku_var_info_offset_list.sort(key=lambda x:x.PcdDscLine)
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FirstOffset = int(sku_var_info_offset_list[0].var_offset, 16) if sku_var_info_offset_list[0].var_offset.upper().startswith("0X") else int(sku_var_info_offset_list[0].var_offset)
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fisrtvalue_list = sku_var_info_offset_list[0].default_value.strip("{").strip("}").split(",")
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firstdata_type = sku_var_info_offset_list[0].data_type
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if firstdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
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fisrtdata_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[firstdata_type]]
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fisrtdata = fisrtvalue_list[0]
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fisrtvalue_list = []
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pack_data = pack(fisrtdata_flag, int(fisrtdata, 0))
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for data_byte in range(len(pack_data)):
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fisrtvalue_list.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
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newvalue_list = ["0x00"] * FirstOffset + fisrtvalue_list
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for var_item in sku_var_info_offset_list[1:]:
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CurOffset = int(var_item.var_offset, 16) if var_item.var_offset.upper().startswith("0X") else int(var_item.var_offset)
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CurvalueList = var_item.default_value.strip("{").strip("}").split(",")
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Curdata_type = var_item.data_type
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if Curdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
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data_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[Curdata_type]]
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data = CurvalueList[0]
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CurvalueList = []
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pack_data = pack(data_flag, int(data, 0))
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for data_byte in range(len(pack_data)):
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CurvalueList.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
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if CurOffset > len(newvalue_list):
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newvalue_list = newvalue_list + ["0x00"] * (CurOffset - len(newvalue_list)) + CurvalueList
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else:
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newvalue_list[CurOffset : CurOffset + len(CurvalueList)] = CurvalueList
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newvaluestr = "{" + ",".join(newvalue_list) +"}"
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n = sku_var_info_offset_list[0]
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indexedvarinfo[key] = [var_info(n.pcdindex, n.pcdname, n.defaultstoragename, n.skuname, n.var_name, n.var_guid, "0x00", n.var_attribute, newvaluestr, newvaluestr, DataType.TAB_VOID,n.PcdDscLine,n.StructurePcd)]
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self.VarInfo = [item[0] for item in list(indexedvarinfo.values())]
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def process_variable_data(self):
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var_data = collections.defaultdict(collections.OrderedDict)
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indexedvarinfo = collections.OrderedDict()
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for item in self.VarInfo:
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if item.pcdindex not in indexedvarinfo:
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indexedvarinfo[item.pcdindex] = dict()
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indexedvarinfo[item.pcdindex][(item.skuname, item.defaultstoragename)] = item
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for index in indexedvarinfo:
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sku_var_info = indexedvarinfo[index]
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default_data_buffer = ""
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others_data_buffer = ""
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tail = None
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default_sku_default = indexedvarinfo[index].get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT))
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if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
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var_max_len = max(len(var_item.default_value.split(",")) for var_item in sku_var_info.values())
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if len(default_sku_default.default_value.split(",")) < var_max_len:
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tail = ",".join("0x00" for i in range(var_max_len-len(default_sku_default.default_value.split(","))))
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default_data_buffer = VariableMgr.PACK_VARIABLES_DATA(default_sku_default.default_value, default_sku_default.data_type, tail)
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default_data_array = ()
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for item in range(len(default_data_buffer)):
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default_data_array += unpack("B", default_data_buffer[item:item + 1])
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var_data[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)][index] = (default_data_buffer, sku_var_info[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)])
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for (skuid, defaultstoragename) in indexedvarinfo[index]:
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tail = None
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if (skuid, defaultstoragename) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
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continue
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other_sku_other = indexedvarinfo[index][(skuid, defaultstoragename)]
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if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
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if len(other_sku_other.default_value.split(",")) < var_max_len:
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tail = ",".join("0x00" for i in range(var_max_len-len(other_sku_other.default_value.split(","))))
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others_data_buffer = VariableMgr.PACK_VARIABLES_DATA(other_sku_other.default_value, other_sku_other.data_type, tail)
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others_data_array = ()
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for item in range(len(others_data_buffer)):
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others_data_array += unpack("B", others_data_buffer[item:item + 1])
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data_delta = VariableMgr.calculate_delta(default_data_array, others_data_array)
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var_data[(skuid, defaultstoragename)][index] = (data_delta, sku_var_info[(skuid, defaultstoragename)])
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return var_data
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def new_process_varinfo(self):
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self.combine_variable()
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var_data = self.process_variable_data()
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if not var_data:
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return []
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pcds_default_data = var_data.get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT), {})
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NvStoreDataBuffer = bytearray()
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var_data_offset = collections.OrderedDict()
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offset = NvStorageHeaderSize
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for default_data, default_info in pcds_default_data.values():
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var_name_buffer = VariableMgr.PACK_VARIABLE_NAME(default_info.var_name)
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vendorguid = default_info.var_guid.split('-')
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if default_info.var_attribute:
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var_attr_value, _ = VariableAttributes.GetVarAttributes(default_info.var_attribute)
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else:
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var_attr_value = 0x07
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DataBuffer = VariableMgr.AlignData(var_name_buffer + default_data)
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data_size = len(DataBuffer)
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if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
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offset += AuthenticatedVariableHeaderSize + len(default_info.var_name.split(","))
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else:
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offset += VariableHeaderSize + len(default_info.var_name.split(","))
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var_data_offset[default_info.pcdindex] = offset
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offset += data_size - len(default_info.var_name.split(","))
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if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
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var_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
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else:
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var_header_buffer = VariableMgr.PACK_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
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NvStoreDataBuffer += (var_header_buffer + DataBuffer)
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if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
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variable_storage_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)
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else:
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variable_storage_header_buffer = VariableMgr.PACK_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)
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nv_default_part = VariableMgr.AlignData(VariableMgr.PACK_DEFAULT_DATA(0, 0, VariableMgr.unpack_data(variable_storage_header_buffer+NvStoreDataBuffer)), 8)
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data_delta_structure_buffer = bytearray()
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for skuname, defaultstore in var_data:
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if (skuname, defaultstore) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
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continue
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pcds_sku_data = var_data[(skuname, defaultstore)]
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delta_data_set = []
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for pcdindex in pcds_sku_data:
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offset = var_data_offset[pcdindex]
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delta_data, _ = pcds_sku_data[pcdindex]
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delta_data = [(item[0] + offset, item[1]) for item in delta_data]
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delta_data_set.extend(delta_data)
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data_delta_structure_buffer += VariableMgr.AlignData(self.PACK_DELTA_DATA(skuname, defaultstore, delta_data_set), 8)
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size = len(nv_default_part + data_delta_structure_buffer) + 16
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maxsize = self.VpdRegionSize if self.VpdRegionSize else size
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NV_Store_Default_Header = VariableMgr.PACK_NV_STORE_DEFAULT_HEADER(size, maxsize)
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self.NVHeaderBuff = NV_Store_Default_Header
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self.VarDefaultBuff =nv_default_part
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self.VarDeltaBuff = data_delta_structure_buffer
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return VariableMgr.format_data(NV_Store_Default_Header + nv_default_part + data_delta_structure_buffer)
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@staticmethod
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def format_data(data):
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return [hex(item) for item in VariableMgr.unpack_data(data)]
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@staticmethod
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def unpack_data(data):
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final_data = ()
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for item in range(len(data)):
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final_data += unpack("B", data[item:item + 1])
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return final_data
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@staticmethod
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def calculate_delta(default, theother):
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if len(default) - len(theother) != 0:
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EdkLogger.error("build", FORMAT_INVALID, 'The variable data length is not the same for the same PCD.')
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data_delta = []
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for i in range(len(default)):
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if default[i] != theother[i]:
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data_delta.append((i, theother[i]))
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return data_delta
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def dump(self):
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default_var_bin = self.new_process_varinfo()
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if default_var_bin:
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value_str = "{"
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default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
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value_str += ",".join(default_var_bin_strip)
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value_str += "}"
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return value_str
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return ""
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@staticmethod
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def PACK_VARIABLE_STORE_HEADER(size):
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#Signature: gEfiVariableGuid
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Guid = "{ 0xddcf3616, 0x3275, 0x4164, { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d }}"
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Guid = GuidStructureStringToGuidString(Guid)
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GuidBuffer = PackGUID(Guid.split('-'))
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SizeBuffer = pack('=L', size)
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FormatBuffer = pack('=B', 0x5A)
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StateBuffer = pack('=B', 0xFE)
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reservedBuffer = pack('=H', 0)
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reservedBuffer += pack('=L', 0)
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return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer
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def PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(size):
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#Signature: gEfiAuthenticatedVariableGuid
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Guid = "{ 0xaaf32c78, 0x947b, 0x439a, { 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 }}"
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Guid = GuidStructureStringToGuidString(Guid)
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GuidBuffer = PackGUID(Guid.split('-'))
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SizeBuffer = pack('=L', size)
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FormatBuffer = pack('=B', 0x5A)
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StateBuffer = pack('=B', 0xFE)
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reservedBuffer = pack('=H', 0)
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reservedBuffer += pack('=L', 0)
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return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer
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@staticmethod
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def PACK_NV_STORE_DEFAULT_HEADER(size, maxsize):
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Signature = pack('=B', ord('N'))
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Signature += pack("=B", ord('S'))
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Signature += pack("=B", ord('D'))
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Signature += pack("=B", ord('B'))
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SizeBuffer = pack("=L", size)
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MaxSizeBuffer = pack("=Q", maxsize)
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return Signature + SizeBuffer + MaxSizeBuffer
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@staticmethod
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def PACK_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):
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Buffer = pack('=H', 0x55AA) # pack StartID
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Buffer += pack('=B', 0x3F) # pack State
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Buffer += pack('=B', 0) # pack reserved
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Buffer += pack('=L', attribute)
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Buffer += pack('=L', namesize)
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Buffer += pack('=L', datasize)
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Buffer += PackGUID(vendorguid)
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return Buffer
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@staticmethod
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def PACK_AUTHENTICATED_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):
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Buffer = pack('=H', 0x55AA) # pack StartID
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Buffer += pack('=B', 0x3F) # pack State
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Buffer += pack('=B', 0) # pack reserved
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Buffer += pack('=L', attribute)
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Buffer += pack('=Q', 0) # pack MonotonicCount
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Buffer += pack('=HBBBBBBLhBB', # pack TimeStamp
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0, # UINT16 Year
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0, # UINT8 Month
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0, # UINT8 Day
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0, # UINT8 Hour
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0, # UINT8 Minute
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0, # UINT8 Second
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0, # UINT8 Pad1
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0, # UINT32 Nanosecond
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0, # INT16 TimeZone
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0, # UINT8 Daylight
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0) # UINT8 Pad2
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Buffer += pack('=L', 0) # pack PubKeyIndex
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Buffer += pack('=L', namesize)
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Buffer += pack('=L', datasize)
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Buffer += PackGUID(vendorguid)
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return Buffer
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@staticmethod
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def PACK_VARIABLES_DATA(var_value,data_type, tail = None):
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Buffer = bytearray()
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data_len = 0
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if data_type == DataType.TAB_VOID:
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for value_char in var_value.strip("{").strip("}").split(","):
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Buffer += pack("=B", int(value_char, 16))
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data_len += len(var_value.split(","))
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if tail:
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for value_char in tail.split(","):
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Buffer += pack("=B", int(value_char, 16))
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data_len += len(tail.split(","))
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elif data_type == "BOOLEAN":
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Buffer += pack("=B", True) if var_value.upper() in ["TRUE","1"] else pack("=B", False)
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data_len += 1
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elif data_type == DataType.TAB_UINT8:
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Buffer += pack("=B", GetIntegerValue(var_value))
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data_len += 1
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elif data_type == DataType.TAB_UINT16:
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Buffer += pack("=H", GetIntegerValue(var_value))
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data_len += 2
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elif data_type == DataType.TAB_UINT32:
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Buffer += pack("=L", GetIntegerValue(var_value))
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data_len += 4
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elif data_type == DataType.TAB_UINT64:
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Buffer += pack("=Q", GetIntegerValue(var_value))
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data_len += 8
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return Buffer
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@staticmethod
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def PACK_DEFAULT_DATA(defaultstoragename, skuid, var_value):
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Buffer = bytearray()
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Buffer += pack("=L", 4+8+8)
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Buffer += pack("=Q", int(skuid))
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Buffer += pack("=Q", int(defaultstoragename))
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for item in var_value:
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Buffer += pack("=B", item)
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Buffer = pack("=L", len(Buffer)+4) + Buffer
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return Buffer
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def GetSkuId(self, skuname):
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if skuname not in self.SkuIdMap:
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return None
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return self.SkuIdMap.get(skuname)[0]
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def GetDefaultStoreId(self, dname):
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if dname not in self.DefaultStoreMap:
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return None
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return self.DefaultStoreMap.get(dname)[0]
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def PACK_DELTA_DATA(self, skuname, defaultstoragename, delta_list):
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skuid = self.GetSkuId(skuname)
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defaultstorageid = self.GetDefaultStoreId(defaultstoragename)
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Buffer = bytearray()
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Buffer += pack("=L", 4+8+8)
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Buffer += pack("=Q", int(skuid))
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Buffer += pack("=Q", int(defaultstorageid))
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for (delta_offset, value) in delta_list:
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Buffer += pack("=L", delta_offset)
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Buffer = Buffer[:-1] + pack("=B", value)
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Buffer = pack("=L", len(Buffer) + 4) + Buffer
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return Buffer
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@staticmethod
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def AlignData(data, align = 4):
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mybuffer = data
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if (len(data) % align) > 0:
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for i in range(align - (len(data) % align)):
|
|
mybuffer += pack("=B", 0)
|
|
|
|
return mybuffer
|
|
|
|
@staticmethod
|
|
def PACK_VARIABLE_NAME(var_name):
|
|
Buffer = bytearray()
|
|
for name_char in var_name.strip("{").strip("}").split(","):
|
|
Buffer += pack("=B", int(name_char, 16))
|
|
|
|
return Buffer
|