Exemplo n.º 1
0
def isEnum(F, op_index):
    if op_index == 0:
        return idc.isEnum0(F)
    elif op_index == 1:
        return idc.isEnum1(F)
    else:
        return False
Exemplo n.º 2
0
    def op_type_changed(self, ea, n):
        def gather_enum_info(ea, n):
            id = idaapi.get_enum_id(ea, n)[0]
            serial = idaapi.get_enum_idx(id)
            return id, serial

        extra = {}
        flags = idc.get_full_flags(ea)
        if n == 0:
            if idc.isHex0(flags):
                op = 'hex'
            elif idc.isBin0(flags):
                op = 'bin'
            elif idc.isDec0(flags):
                op = 'dec'
            elif idc.isChar0(flags):
                op = 'chr'
            elif idc.isOct0(flags):
                op = 'oct'
            elif idc.isEnum0(flags):
                op = 'enum'
                id, serial = gather_enum_info(ea, n)
                ename = idc.get_enum_name(id)
                extra['ename'] = ename
                extra['serial'] = serial
            else:
                return 0  # FIXME: Find a better way
        else:
            if idc.isHex1(flags):
                op = 'hex'
            elif idc.isBin1(flags):
                op = 'bin'
            elif idc.isDec1(flags):
                op = 'dec'
            elif idc.isChar1(flags):
                op = 'chr'
            elif idc.isOct1(flags):
                op = 'oct'
            elif idc.isEnum1(flags):
                op = 'enum'
                id, serial = gather_enum_info(ea, n)
                ename = idc.get_enum_name(id)
                extra['ename'] = ename
                extra['serial'] = serial
            else:
                return 0  # FIXME: Find a better way
        self._send_event(OpTypeChangedEvent(ea, n, op, extra))
        return 0
Exemplo n.º 3
0
    def make_struc_member(self,
                          object_version,
                          address,
                          member_type=ya.OBJECT_TYPE_STRUCT_MEMBER):
        struc_object_id = object_version.get_parent_object_id()

        struc_id = 0
        try:
            struc_id = self.struc_ids[struc_object_id]
        except:
            return
        is_union = struc_id in self.union_ids

        offset = address

        if is_union:
            last_offset = idc.GetLastMember(struc_id)
            if last_offset == idc.BADADDR:
                last_offset = -1
            if last_offset < offset:
                for i in xrange(last_offset + 1, offset + 1):
                    idc.AddStrucMember(struc_id, "yaco_filler_%d" % i, 0,
                                       idc.FF_BYTE | idc.FF_DATA, -1, 1)
                    # ensure that 'offset' fields are present

        member_size = object_version.get_size()
        member_name = object_version.get_name()

        flags = object_version.get_object_flags()
        if idc.isStruct(flags):
            # if the sub field is a struct, it must have a single Xref field with the struct object id
            try:
                sub_struc_object_id = object_version.getXRefIdsAt(0, 0)[0]
                sub_struc_id = self.struc_ids[sub_struc_object_id]

                #                 logger.debug("%20s: adding sub member at offset 0x%08X,
                #                               size=0x%08X (sub=0x%.016X, size=0x%08X) with name %s" %
                #                             (
                #                                 idc.GetStrucName(struc_id), offset, member_size, sub_struc_id,
                #                                               idc.GetStrucSize(sub_struc_id), object_version.get_name()
                #                             ))

                sub_struc_size = idc.GetStrucSize(sub_struc_id)
                if sub_struc_size == 0:
                    logger.error(
                        "%20s: adding sub member at offset 0x%08X, size=0x%08X "
                        "(sub=0x%.016X, size=0x%08X) with name %s : sub struc size is ZERO"
                        % (idc.GetStrucName(struc_id), offset, member_size,
                           sub_struc_id, idc.GetStrucSize(sub_struc_id),
                           object_version.get_name()))

                else:
                    nitems = member_size / sub_struc_size

                    YaToolIDATools.SetStrucmember(struc_id, member_name,
                                                  offset, flags, sub_struc_id,
                                                  nitems)

            except KeyError:
                logger.error(
                    "Error while looking for sub struc in struc %s, offset 0x%08X (field name='%s')"
                    % (self.hash_provider.hash_to_string(struc_object_id),
                       offset, object_version.get_name()))
                traceback.print_exc()
        elif idc.isEnum0(flags):
            # an enum is applied here
            try:
                sub_enum_object_id = object_version.getXRefIdsAt(0, 0)[0]
                sub_enum_id = self.enum_ids[sub_enum_object_id]

                name_ok = idc.SetMemberName(struc_id, offset, member_name)
                if name_ok is not True:
                    logger.debug(
                        "Error while setting member name (enum) : "
                        "(struc=%s, member=%s, offset=0x%08X, mflags=%d, msize=%d, tid=0x%016X"
                        % (name_ok, idc.GetStrucName(struc_id), member_name,
                           offset, flags, member_size, sub_struc_id))
                else:
                    sub_enum_size = idc.GetEnumWidth(sub_enum_id)
                    if sub_enum_size == 0:
                        sub_enum_size = member_size

                    nitems = member_size / sub_enum_size
                    ret = idc.SetMemberType(struc_id, offset, flags,
                                            sub_enum_id, nitems)
                    if ret == 0:
                        logger.debug(
                            "Error while setting member type (enum) : "
                            "(struc=%s, member=%s, offset=0x%08X, mflags=%d, msize=%d, tid=0x%016X"
                            % (ret, idc.GetStrucName(struc_id), member_name,
                               offset, flags, member_size, sub_struc_id))

            except KeyError:
                logger.error(
                    "Error while looking for sub enum in struc %s, offset 0x%08X (field name='%s')"
                    % (struc_object_id, offset, member_name))
                traceback.print_exc()

        else:
            #             logger.debug("%20s: adding member at offset 0x%08X, size=0x%08X with name %s" %
            #                         (
            #                         idc.GetStrucName(struc_id), offset, member_size, object_version.get_name()
            #                         ))
            tid = -1
            if idc.isASCII(flags):
                logger.debug(
                    "object: %s : %s" % (self.hash_provider.hash_to_string(
                        object_version.get_id()), object_version.get_name()))
                try:
                    tid = object_version.get_string_type()
                except KeyError:
                    tid = idc.ASCSTR_C

            name_ok = idc.SetMemberName(struc_id, offset, member_name)
            if name_ok is not True:
                logger.debug(
                    "Error while setting member name :" +
                    " (struc_id=0x%08X, struc=%s, member=%s, offset=0x%08X, mflags=%d, msize=%d)"
                    % (struc_id, idc.GetStrucName(struc_id), member_name,
                       offset, flags, member_size))
            else:
                item_size = YaToolIDATools.get_field_size(flags, tid)
                nitems = member_size / item_size
                # IDA BUG : 4-byte chars are stored as 2 double words, thus me must
                # multiply nitem by 2!
                ret = idc.SetMemberType(struc_id, offset, flags, tid, nitems)
                if ret == 0:
                    logger.debug(
                        "Error while setting member type :" +
                        " (struc=%s, member=%s, offset=0x%08X, mflags=%d, msize=%d)"
                        % (idc.GetStrucName(struc_id), member_name, offset,
                           flags, member_size))

        try:
            repeatable_headercomment = self.sanitize_comment_to_ascii(
                object_version.get_header_comment(True))
            idc.SetMemberComment(struc_id, offset, repeatable_headercomment, 1)
        except KeyError:
            pass

        try:
            nonrepeatable_headercomment = self.sanitize_comment_to_ascii(
                object_version.get_header_comment(False))
            idc.SetMemberComment(struc_id, offset, nonrepeatable_headercomment,
                                 0)
        except KeyError:
            pass

        member_id = idc.GetMemberId(struc_id, offset)

        self.set_struct_member_type(object_version, member_id)
        if object_version.get_type() == ya.OBJECT_TYPE_STRUCT_MEMBER:
            self.strucmember_ids[object_version.get_id()] = member_id