BaseTools: AutoGen - refactor assemble_variable

[mirror_edk2.git] / BaseTools / Source / Python / AutoGen / GenVar.py

# Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
#\r
# This file is used to collect the Variable checking information\r
#\r
\r
# #\r
# Import Modules\r
#\r
from struct import pack,unpack\r
import collections\r
import copy\r
from Common.VariableAttributes import VariableAttributes\r
from Common.Misc import *\r
import collections\r
import Common.DataType as DataType\r
\r
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")\r
NvStorageHeaderSize = 28\r
VariableHeaderSize = 32\r
\r
def StringArrayToList(StringArray):\r
    StringArray = StringArray[1:-1]\r
    StringArray = '[' + StringArray + ']'\r
    return eval(StringArray)\r
\r
def PackGUID(Guid):\r
    GuidBuffer = pack('=LHHBBBBBBBB',\r
                int(Guid[0], 16),\r
                int(Guid[1], 16),\r
                int(Guid[2], 16),\r
                int(Guid[3][-4:-2], 16),\r
                int(Guid[3][-2:], 16),\r
                int(Guid[4][-12:-10], 16),\r
                int(Guid[4][-10:-8], 16),\r
                int(Guid[4][-8:-6], 16),\r
                int(Guid[4][-6:-4], 16),\r
                int(Guid[4][-4:-2], 16),\r
                int(Guid[4][-2:], 16)\r
                )\r
    return GuidBuffer\r
\r
class VariableMgr(object):\r
    def __init__(self, DefaultStoreMap,SkuIdMap):\r
        self.VarInfo = []\r
        self.DefaultStoreMap = DefaultStoreMap\r
        self.SkuIdMap = SkuIdMap\r
        self.VpdRegionSize = 0\r
        self.VpdRegionOffset = 0\r
        self.NVHeaderBuff = None\r
        self.VarDefaultBuff = None\r
        self.VarDeltaBuff = None\r
\r
    def append_variable(self,uefi_var):\r
        self.VarInfo.append(uefi_var)\r
\r
    def SetVpdRegionMaxSize(self,maxsize):\r
        self.VpdRegionSize = maxsize\r
\r
    def SetVpdRegionOffset(self,vpdoffset):\r
        self.VpdRegionOffset = vpdoffset\r
\r
    def PatchNVStoreDefaultMaxSize(self,maxsize):\r
        if not self.NVHeaderBuff:\r
            return ""\r
        self.NVHeaderBuff = self.NVHeaderBuff[:8] + pack("=Q",maxsize)\r
        default_var_bin = self.format_data(self.NVHeaderBuff + self.VarDefaultBuff + self.VarDeltaBuff)\r
        value_str = "{"\r
        default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]\r
        value_str += ",".join(default_var_bin_strip)\r
        value_str += "}"\r
        return value_str\r
    def combine_variable(self):\r
        indexedvarinfo = collections.OrderedDict()\r
        for item in self.VarInfo:\r
            if (item.skuname,item.defaultstoragename, item.var_name,item.var_guid) not in indexedvarinfo:\r
                indexedvarinfo[(item.skuname,item.defaultstoragename, item.var_name,item.var_guid) ] = []\r
            indexedvarinfo[(item.skuname,item.defaultstoragename, item.var_name,item.var_guid)].append(item)\r
        for key in indexedvarinfo:\r
            sku_var_info_offset_list = indexedvarinfo[key]\r
            if len(sku_var_info_offset_list) == 1:\r
                continue\r
            newvalue = {}\r
            for item in sku_var_info_offset_list:\r
                data_type = item.data_type\r
                value_list = item.default_value.strip("{").strip("}").split(",")\r
                if data_type in DataType.TAB_PCD_NUMERIC_TYPES:\r
                    if data_type == ["BOOLEAN", DataType.TAB_UINT8]:\r
                        data_flag = "=B"\r
                    elif data_type == DataType.TAB_UINT16:\r
                        data_flag = "=H"\r
                    elif data_type == DataType.TAB_UINT32:\r
                        data_flag = "=L"\r
                    elif data_type == DataType.TAB_UINT64:\r
                        data_flag = "=Q"\r
                    data = value_list[0]\r
                    value_list = []\r
                    for data_byte in pack(data_flag,int(data,16) if data.upper().startswith('0X') else int(data)):\r
                        value_list += [hex(unpack("B",data_byte)[0])]\r
                newvalue[int(item.var_offset,16) if item.var_offset.upper().startswith("0X") else int(item.var_offset)] = value_list\r
            try:\r
                newvaluestr = "{" + ",".join(self.assemble_variable(newvalue)) +"}"\r
            except:\r
                EdkLogger.error("build", AUTOGEN_ERROR, "Variable offset conflict in PCDs: %s \n" % (" and ".join([item.pcdname for item in sku_var_info_offset_list])))\r
            n = sku_var_info_offset_list[0]\r
            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)]\r
        self.VarInfo = [item[0] for item in indexedvarinfo.values()]\r
\r
    @staticmethod\r
    def assemble_variable(valuedict):\r
        ordered_offset = sorted(valuedict.keys())\r
        ordered_value = [valuedict[k] for k in ordered_offset]\r
        var_value = []\r
        num = 0\r
        for offset in ordered_offset:\r
            if offset < len(var_value):\r
                raise\r
            for _ in xrange(offset - len(var_value)):\r
                var_value.append('0x00')\r
            var_value += ordered_value[num]\r
            num +=1\r
        return var_value\r
\r
    def process_variable_data(self):\r
\r
        var_data = collections.defaultdict(collections.OrderedDict)\r
\r
        indexedvarinfo = collections.OrderedDict()\r
        for item in self.VarInfo:\r
            if item.pcdindex not in indexedvarinfo:\r
                indexedvarinfo[item.pcdindex] = dict()\r
            indexedvarinfo[item.pcdindex][(item.skuname,item.defaultstoragename)] = item\r
\r
        for index in indexedvarinfo:\r
            sku_var_info = indexedvarinfo[index]\r
\r
            default_data_buffer = ""\r
            others_data_buffer = ""\r
            tail = None\r
            default_sku_default = indexedvarinfo.get(index).get((DataType.TAB_DEFAULT,DataType.TAB_DEFAULT_STORES_DEFAULT))\r
\r
            if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:\r
                var_max_len = max([len(var_item.default_value.split(",")) for var_item in sku_var_info.values()])\r
                if len(default_sku_default.default_value.split(",")) < var_max_len:\r
                    tail = ",".join([ "0x00" for i in range(var_max_len-len(default_sku_default.default_value.split(",")))])\r
\r
            default_data_buffer = self.PACK_VARIABLES_DATA(default_sku_default.default_value,default_sku_default.data_type,tail)\r
\r
            default_data_array = ()\r
            for item in default_data_buffer:\r
                default_data_array += unpack("B",item)\r
\r
            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)])\r
\r
            for (skuid,defaultstoragename) in indexedvarinfo.get(index):\r
                tail = None\r
                if (skuid,defaultstoragename) == (DataType.TAB_DEFAULT,DataType.TAB_DEFAULT_STORES_DEFAULT):\r
                    continue\r
                other_sku_other = indexedvarinfo.get(index).get((skuid,defaultstoragename))\r
\r
                if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:\r
                    if len(other_sku_other.default_value.split(",")) < var_max_len:\r
                        tail = ",".join([ "0x00" for i in range(var_max_len-len(other_sku_other.default_value.split(",")))])\r
\r
                others_data_buffer = self.PACK_VARIABLES_DATA(other_sku_other.default_value,other_sku_other.data_type,tail)\r
\r
                others_data_array = ()\r
                for item in others_data_buffer:\r
                    others_data_array += unpack("B",item)\r
\r
                data_delta = self.calculate_delta(default_data_array, others_data_array)\r
\r
                var_data[(skuid,defaultstoragename)][index] = (data_delta,sku_var_info[(skuid,defaultstoragename)])\r
        return var_data\r
\r
    def new_process_varinfo(self):\r
        self.combine_variable()\r
\r
        var_data = self.process_variable_data()\r
\r
        if not var_data:\r
            return []\r
\r
        pcds_default_data = var_data.get((DataType.TAB_DEFAULT,DataType.TAB_DEFAULT_STORES_DEFAULT),{})\r
        NvStoreDataBuffer = ""\r
        var_data_offset = collections.OrderedDict()\r
        offset = NvStorageHeaderSize\r
        for default_data,default_info in pcds_default_data.values():\r
            var_name_buffer = self.PACK_VARIABLE_NAME(default_info.var_name)\r
\r
            vendorguid = default_info.var_guid.split('-')\r
\r
            if default_info.var_attribute:\r
                var_attr_value,_ = VariableAttributes.GetVarAttributes(default_info.var_attribute)\r
            else:\r
                var_attr_value = 0x07\r
\r
            DataBuffer = self.AlignData(var_name_buffer + default_data)\r
\r
            data_size = len(DataBuffer)\r
            offset += VariableHeaderSize + len(default_info.var_name.split(","))\r
            var_data_offset[default_info.pcdindex] = offset\r
            offset += data_size - len(default_info.var_name.split(","))\r
\r
            var_header_buffer = self.PACK_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)\r
            NvStoreDataBuffer += (var_header_buffer + DataBuffer)\r
\r
        variable_storage_header_buffer = self.PACK_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)\r
\r
        nv_default_part = self.AlignData(self.PACK_DEFAULT_DATA(0, 0, self.unpack_data(variable_storage_header_buffer+NvStoreDataBuffer)), 8)\r
\r
        data_delta_structure_buffer = ""\r
        for skuname,defaultstore in var_data:\r
            if (skuname,defaultstore) == (DataType.TAB_DEFAULT,DataType.TAB_DEFAULT_STORES_DEFAULT):\r
                continue\r
            pcds_sku_data = var_data.get((skuname,defaultstore))\r
            delta_data_set = []\r
            for pcdindex in pcds_sku_data:\r
                offset = var_data_offset[pcdindex]\r
                delta_data,_ = pcds_sku_data[pcdindex]\r
                delta_data = [(item[0] + offset, item[1]) for item in delta_data]\r
                delta_data_set.extend(delta_data)\r
\r
            data_delta_structure_buffer += self.AlignData(self.PACK_DELTA_DATA(skuname,defaultstore,delta_data_set), 8)\r
\r
        size = len(nv_default_part + data_delta_structure_buffer) + 16\r
        maxsize = self.VpdRegionSize if self.VpdRegionSize else size\r
        NV_Store_Default_Header = self.PACK_NV_STORE_DEFAULT_HEADER(size,maxsize)\r
\r
        self.NVHeaderBuff =  NV_Store_Default_Header\r
        self.VarDefaultBuff =nv_default_part\r
        self.VarDeltaBuff =  data_delta_structure_buffer\r
        return self.format_data(NV_Store_Default_Header + nv_default_part + data_delta_structure_buffer)\r
\r
\r
    def format_data(self,data):\r
\r
        return  [hex(item) for item in self.unpack_data(data)]\r
\r
    def unpack_data(self,data):\r
        final_data = ()\r
        for item in data:\r
            final_data += unpack("B",item)\r
        return final_data\r
\r
    def calculate_delta(self, default, theother):\r
        if len(default) - len(theother) != 0:\r
            EdkLogger.error("build", FORMAT_INVALID, 'The variable data length is not the same for the same PCD.')\r
        data_delta = []\r
        for i in range(len(default)):\r
            if default[i] != theother[i]:\r
                data_delta.append((i,theother[i]))\r
        return data_delta\r
\r
    def dump(self):\r
\r
        default_var_bin = self.new_process_varinfo()\r
        if default_var_bin:\r
            value_str = "{"\r
            default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]\r
            value_str += ",".join(default_var_bin_strip)\r
            value_str += "}"\r
            return value_str\r
        return ""\r
\r
    def PACK_VARIABLE_STORE_HEADER(self,size):\r
        #Signature: gEfiVariableGuid\r
        Guid = "{ 0xddcf3616, 0x3275, 0x4164, { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d }}"\r
        Guid = GuidStructureStringToGuidString(Guid)\r
        GuidBuffer = PackGUID(Guid.split('-'))\r
\r
        SizeBuffer = pack('=L',size)\r
        FormatBuffer = pack('=B',0x5A)\r
        StateBuffer = pack('=B',0xFE)\r
        reservedBuffer = pack('=H',0)\r
        reservedBuffer += pack('=L',0)\r
\r
        return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer\r
\r
    def PACK_NV_STORE_DEFAULT_HEADER(self,size,maxsize):\r
        Signature = pack('=B',ord('N'))\r
        Signature += pack("=B",ord('S'))\r
        Signature += pack("=B",ord('D'))\r
        Signature += pack("=B",ord('B'))\r
\r
        SizeBuffer = pack("=L",size)\r
        MaxSizeBuffer = pack("=Q",maxsize)\r
\r
        return Signature + SizeBuffer + MaxSizeBuffer\r
\r
    def PACK_VARIABLE_HEADER(self,attribute,namesize,datasize,vendorguid):\r
\r
        Buffer = pack('=H',0x55AA) # pack StartID\r
        Buffer += pack('=B',0x3F)  # pack State\r
        Buffer += pack('=B',0)     # pack reserved\r
\r
        Buffer += pack('=L',attribute)\r
        Buffer += pack('=L',namesize)\r
        Buffer += pack('=L',datasize)\r
\r
        Buffer += PackGUID(vendorguid)\r
\r
        return Buffer\r
\r
    def PACK_VARIABLES_DATA(self, var_value,data_type, tail = None):\r
        Buffer = ""\r
        data_len = 0\r
        if data_type == DataType.TAB_VOID:\r
            for value_char in var_value.strip("{").strip("}").split(","):\r
                Buffer += pack("=B",int(value_char,16))\r
            data_len += len(var_value.split(","))\r
            if tail:\r
                for value_char in tail.split(","):\r
                    Buffer += pack("=B",int(value_char,16))\r
                data_len += len(tail.split(","))\r
        elif data_type == "BOOLEAN":\r
            Buffer += pack("=B",True) if var_value.upper() == "TRUE" else pack("=B",False)\r
            data_len += 1\r
        elif data_type  == DataType.TAB_UINT8:\r
            Buffer += pack("=B",GetIntegerValue(var_value))\r
            data_len += 1\r
        elif data_type == DataType.TAB_UINT16:\r
            Buffer += pack("=H",GetIntegerValue(var_value))\r
            data_len += 2\r
        elif data_type == DataType.TAB_UINT32:\r
            Buffer += pack("=L",GetIntegerValue(var_value))\r
            data_len += 4\r
        elif data_type == DataType.TAB_UINT64:\r
            Buffer += pack("=Q",GetIntegerValue(var_value))\r
            data_len += 8\r
\r
        return Buffer\r
\r
    def PACK_DEFAULT_DATA(self, defaultstoragename,skuid,var_value):\r
        Buffer = ""\r
        Buffer += pack("=L",4+8+8)\r
        Buffer += pack("=Q",int(skuid))\r
        Buffer += pack("=Q",int(defaultstoragename))\r
\r
        for item in var_value:\r
            Buffer += pack("=B",item)\r
\r
        Buffer = pack("=L",len(Buffer)+4) + Buffer\r
\r
        return Buffer\r
\r
    def GetSkuId(self,skuname):\r
        if skuname not in self.SkuIdMap:\r
            return None\r
        return self.SkuIdMap.get(skuname)[0]\r
    def GetDefaultStoreId(self,dname):\r
        if dname not in self.DefaultStoreMap:\r
            return None\r
        return self.DefaultStoreMap.get(dname)[0]\r
    def PACK_DELTA_DATA(self,skuname,defaultstoragename,delta_list):\r
        skuid = self.GetSkuId(skuname)\r
        defaultstorageid = self.GetDefaultStoreId(defaultstoragename)\r
        Buffer = ""\r
        Buffer += pack("=L",4+8+8)\r
        Buffer += pack("=Q",int(skuid))\r
        Buffer += pack("=Q",int(defaultstorageid))\r
        for (delta_offset,value) in delta_list:\r
            Buffer += pack("=L",delta_offset)\r
            Buffer = Buffer[:-1] + pack("=B",value)\r
\r
        Buffer = pack("=L",len(Buffer) + 4) + Buffer\r
\r
        return Buffer\r
\r
    def AlignData(self,data, align = 4):\r
        mybuffer = data\r
        if (len(data) % align) > 0:\r
            for i in range(align - (len(data) % align)):\r
                mybuffer += pack("=B",0)\r
\r
        return mybuffer\r
\r
    def PACK_VARIABLE_NAME(self, var_name):\r
        Buffer = ""\r
        for name_char in var_name.strip("{").strip("}").split(","):\r
            Buffer += pack("=B",int(name_char,16))\r
\r
        return Buffer\r