Python idc.FUNCATTR_END Examples

The following are 12 code examples for showing how to use idc.FUNCATTR_END(). These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.

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Example 1
Project: fcatalog_client   Author: xorpd   File: ida_ts.py    License: GNU General Public License v3.0 6 votes vote down vote up
def _get_func_length(func_addr):
    """
    Return function's length.
    """
    logger.debug('_get_func_length: {}'.format(func_addr))
    # First check if this is a chunked function.
    # If so, we abort.
    if _is_func_chunked(func_addr):
        return None
        # raise FCatalogClientError('Function {:X} is chunked. Can not calculate'
        #        ' length.'.format(func_addr))

    # Get the end of the function:
    func_end = idc.GetFunctionAttr(func_addr,idc.FUNCATTR_END)

    if func_end < func_addr:
        return None
        # raise FCatalogClientError('Function {:X} has end lower than start'.\
        #        format(func_addr))

    # Calculate length and return:
    return func_end - func_addr 
Example 2
Project: DIE   Author: ynvb   File: IDAConnector.py    License: MIT License 6 votes vote down vote up
def get_function_end_address(ea):
    """
    Get function end address
    @param ea: function start_ea.
    @return: The function end ea. If no function end ea found returns None.
    """
    try:
        if ea is None:
            return None

        func_attr_end = idc.GetFunctionAttr(ea, idc.FUNCATTR_END)
        if func_attr_end == idc.BADADDR:
            return None

        return idc.PrevHead(func_attr_end, ea)

    except Exception as ex:
        raise RuntimeError("Count not locate end address for function %s: %s" % (hex(ea), ex)) 
Example 3
Project: IDAmetrics   Author: mxmssh   File: lib_parser.py    License: BSD 2-Clause "Simplified" License 6 votes vote down vote up
def enumerate_function_chunks(f_start):
    """
    The function gets a list of chunks for the function.
    @f_start - first address of the function
    @return - list of chunks
    """
    # Enumerate all chunks in the function
    chunks = list()
    first_chunk = idc.FirstFuncFchunk(f_start)
    chunks.append((first_chunk, idc.GetFchunkAttr(first_chunk, idc.FUNCATTR_END)))
    next_chunk = first_chunk
    while next_chunk != 0xffffffffL:
        next_chunk = idc.NextFuncFchunk(f_start, next_chunk)
        if next_chunk != 0xffffffffL:
            chunks.append((next_chunk, idc.GetFchunkAttr(next_chunk, idc.FUNCATTR_END)))
    return chunks 
Example 4
Project: IDAmetrics   Author: mxmssh   File: IDAMetrics_static.py    License: BSD 2-Clause "Simplified" License 6 votes vote down vote up
def enumerate_function_chunks(self, f_start):
        """
        The function gets a list of chunks for the function.
        @f_start - first address of the function
        @return - list of chunks
        """
        # Enumerate all chunks in the function
        chunks = list()
        first_chunk = idc.FirstFuncFchunk(f_start)
        chunks.append((first_chunk, idc.GetFchunkAttr(first_chunk, idc.FUNCATTR_END)))
        next_chunk = first_chunk
        while next_chunk != 0xffffffffL:
            next_chunk = idc.NextFuncFchunk(f_start, next_chunk)
            if next_chunk != 0xffffffffL:
                chunks.append((next_chunk, idc.GetFchunkAttr(next_chunk, idc.FUNCATTR_END)))
        return chunks 
Example 5
Project: flare-ida   Author: fireeye   File: stackstrings.py    License: Apache License 2.0 6 votes vote down vote up
def getFuncRanges(ea, doAllFuncs):
    if using_ida7api:
        return getFuncRanges_ida7(ea, doAllFuncs)
    if doAllFuncs:
        funcs = []
        funcGen = idautils.Functions(idc.SegStart(ea), idc.SegEnd(ea))
        for i in funcGen:
            funcs.append(i)
        funcRanges = []
        for i in range(len(funcs) - 1):
            funcRanges.append( (funcs[i], funcs[i+1]) )
        funcRanges.append( (funcs[-1], idc.SegEnd(ea)) )
        return funcRanges
    else:
        #just get the range of the current function
        fakeRanges = [( idc.GetFunctionAttr(idc.here(), idc.FUNCATTR_START), idc.GetFunctionAttr(idc.here(), idc.FUNCATTR_END)), ]
        return fakeRanges 
Example 6
Project: bap-ida-python   Author: BinaryAnalysisPlatform   File: ida.py    License: MIT License 5 votes vote down vote up
def output_symbols(out):
    """Dump symbols."""
    try:
        from idaapi import get_func_name2 as get_func_name
        # Since get_func_name is deprecated (at least from IDA 6.9)
    except ImportError:
        from idaapi import get_func_name
        # Older versions of IDA don't have get_func_name2
        # so we just use the older name get_func_name

    def func_name_propagate_thunk(ea):
        current_name = get_func_name(ea)
        if current_name[0].isalpha():
            return current_name
        func = idaapi.get_func(ea)
        temp_ptr = idaapi.ea_pointer()
        ea_new = idaapi.BADADDR
        if func.flags & idaapi.FUNC_THUNK == idaapi.FUNC_THUNK:
            ea_new = idaapi.calc_thunk_func_target(func, temp_ptr.cast())
        if ea_new != idaapi.BADADDR:
            ea = ea_new
        propagated_name = get_func_name(ea) or ''  # Ensure it is not `None`
        if len(current_name) > len(propagated_name) > 0:
            return propagated_name
        else:
            return current_name
            # Fallback to non-propagated name for weird times that IDA gives
            #     a 0 length name, or finds a longer import name

    for ea in idautils.Segments():
        fs = idautils.Functions(idc.SegStart(ea), idc.SegEnd(ea))
        for f in fs:
            out.write('("%s" 0x%x 0x%x)\n' % (
                func_name_propagate_thunk(f),
                idc.GetFunctionAttr(f, idc.FUNCATTR_START),
                idc.GetFunctionAttr(f, idc.FUNCATTR_END))) 
Example 7
Project: ida-minsc   Author: arizvisa   File: quicktime.py    License: BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up
def getMinorDispatchTableAddress(ea):
    """find address of last lea in function"""
    start = idc.get_func_attr(ea, idc.FUNCATTR_START)
    end = idc.prev_head( idc.get_func_attr(ea, idc.FUNCATTR_END), start)
    res = prevMnemonic(end, 'lea', start)
    assert res != idc.BADADDR
    return idc.get_operand_value(res, 1) 
Example 8
Project: ida-minsc   Author: arizvisa   File: quicktime.py    License: BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up
def getMajorDispatchTableAddress():
    """find quicktime major dispatch table"""
    res = idc.get_name_ea_simple('theQuickTimeDispatcher')
    res = nextMnemonic(res, 'lea', idc.get_func_attr(res, idc.FUNCATTR_END))
    assert res != idc.BADADDR
    return idc.get_operand_value(res, 1) 
Example 9
Project: functions-plus   Author: ax330d   File: functions_plus.py    License: MIT License 5 votes vote down vote up
def __init__(self, show_extra_fields):
        self.addr = None
        self.flags = None
        self.show_extra_fields = show_extra_fields
        self.names = [
            'Name', 'Address', 'Segment', 'Length', 'Locals', 'Arguments'
        ]

        self.handlers = {
            0: lambda: None,
            1: lambda: self.fmt(self.addr),
            2: lambda: '{}'.format(idc.get_segm_name(self.addr)),
            3: lambda: self.fmt(idc.get_func_attr(self.addr, idc.FUNCATTR_END) - self.addr),
            4: lambda: self.fmt(idc.get_func_attr(self.addr, idc.FUNCATTR_FRSIZE)),
            5: lambda: self.fmt(idc.get_func_attr(self.addr, idc.FUNCATTR_ARGSIZE))
        }

        if self.show_extra_fields:
            self.names.extend(['R', 'F', 'L', 'S', 'B', 'T', '='])
            # TODO: add Lumina column info
            self.handlers.update({
                6: lambda: self.is_true(not self.flags & idc.FUNC_NORET, 'R'),
                7: lambda: self.is_true(self.flags & idc.FUNC_FAR, 'F'),
                8: lambda: self.is_true(self.flags & idc.FUNC_LIB, 'L'),
                9: lambda: self.is_true(self.flags & idc.FUNC_STATIC, 'S'),
                10: lambda: self.is_true(self.flags & idc.FUNC_FRAME, 'B'),
                11: lambda: self.is_true(idc.get_type(self.addr), 'T'),
                12: lambda: self.is_true(self.flags & idc.FUNC_BOTTOMBP, '=')
            }) 
Example 10
Project: flare-ida   Author: fireeye   File: stackstrings.py    License: Apache License 2.0 5 votes vote down vote up
def getFuncRanges_ida7(ea, doAllFuncs):
    if doAllFuncs:
        funcs = []
        funcGen = idautils.Functions(idc.get_segm_start(ea), idc.get_segm_end(ea))
        for i in funcGen:
            funcs.append(i)
        funcRanges = []
        for i in range(len(funcs) - 1):
            funcRanges.append( (funcs[i], funcs[i+1]) )
        funcRanges.append( (funcs[-1], idc.get_segm_end(ea)) )
        return funcRanges
    else:
        #just get the range of the current function
        fakeRanges = [( idc.get_func_attr(idc.here(), idc.FUNCATTR_START), idc.get_func_attr(idc.here(), idc.FUNCATTR_END)), ]
        return fakeRanges 
Example 11
Project: flare-ida   Author: fireeye   File: objc2_analyzer.py    License: Apache License 2.0 4 votes vote down vote up
def getIvarTypeFromFunc(self, eh, va):
        if va in self.ivarSetters:
            return self.ivarSetters[va]
        elif va in self.notIvarSetters:
            return UNKNOWN
        addr = va
        endVa = idc.get_func_attr(va, idc.FUNCATTR_END)
        if endVa - va < 0x20:
            ivarVa = None
            while addr <= endVa:
                srcOpnd = idc.print_operand(addr, 1)
                # if ivar is the src op for an instruction, assume this function will return it
                if eh.arch == unicorn.UC_ARCH_ARM and "_OBJC_IVAR_$_" in srcOpnd:
                    oploc = idc.get_name_ea_simple(
                        srcOpnd[srcOpnd.find("_OBJC_IVAR_$_"):srcOpnd.find(" ")])
                    if oploc != idc.BADADDR:
                        ivarVa = oploc
                        break
                elif eh.arch == unicorn.UC_ARCH_ARM64:
                    for x in idautils.XrefsFrom(addr):
                        if (idc.get_segm_name(x.to) == "__objc_ivar" and
                                idc.get_name(x.to, idc.ida_name.GN_VISIBLE)[:13] == "_OBJC_IVAR_$_"):
                            ivarVa = x.to
                            break
                elif eh.arch == unicorn.UC_ARCH_X86:
                    if "_OBJC_IVAR_$_" in srcOpnd:
                        ivarVa = idc.get_operand_value(addr, 1)
                        break

                addr = idc.next_head(addr, idc.get_inf_attr(idc.INF_MAX_EA))

            if ivarVa:
                for x in idautils.XrefsTo(ivarVa):
                    if x.frm >= self.objcConst[0] and x.frm < self.objcConst[1]:
                        typeStr = eh.getIDBString(
                            eh.derefPtr(x.frm + eh.size_pointer * 2))
                        self.ivarSetters[va] = typeStr[2:-1]
                        logging.debug("%s is an ivar getter function, returning type %s" % (
                            eh.hexString(va), typeStr[2:-1]))
                        return typeStr[2:-1]
            else:
                logging.debug(
                    "%s determined not to be an ivar getter function", eh.hexString(va))
                self.notIvarSetters.append(va)
        else:
            logging.debug(
                "%s determined not to be an ivar getter function", eh.hexString(va))
            self.notIvarSetters.append(va)
        return UNKNOWN


    # returns class or sel name from IDA name 
Example 12
Project: flare-ida   Author: fireeye   File: mykutils.py    License: Apache License 2.0 4 votes vote down vote up
def _emit_fnbytes(emit_instr_cb, header, footer, indent, fva=None, warn=True):
    """Emit function bytes in a format defined by the callback and
    headers/footers provided.

    Warns if any instruction operands are not consistent with
    position-independent code, in which case the user may need to templatize
    the position-dependent portions.
    """
    fva = fva or idc.here()
    fva = idc.get_func_attr(fva, idc.FUNCATTR_START)
    va_end = idc.get_func_attr(fva, idc.FUNCATTR_END)

    # Operand types observed in position-independent code:
    optypes_position_independent = set([
        ida_ua.o_reg,       # 1: General Register (al,ax,es,ds...)
        ida_ua.o_phrase,    # 3: Base + Index
        ida_ua.o_displ,     # 4: Base + Index + Displacement
        ida_ua.o_imm,       # 5: Immediate
        ida_ua.o_near,      # 7: Immediate Near Address
    ])

    # Notably missing because I want to note and handle these if/as they are
    # encountered:
    # ida_ua.o_idpspec0 = 8: FPP register
    # ida_ua.o_idpspec1 = 9: 386 control register
    # ida_ua.o_idpspec2 = 10: 386 debug register
    # ida_ua.o_idpspec3 = 11: 386 trace register

    va = fva
    nm = idc.get_name(fva)
    optypes_found = set()
    s = header.format(name=nm)
    while va not in (va_end, idc.BADADDR):
        size = idc.get_item_size(va)
        the_bytes = idc.get_bytes(va, size)

        for i in range(0, 8):
            optype = idc.get_operand_type(va, i)
            if optype:
                optypes_found.add(optype)

        s += indent + emit_instr_cb(va, the_bytes, size)
        va = idc.next_head(va)
    s += footer

    position_dependent = optypes_found - optypes_position_independent
    if position_dependent:
        msg = ('This code may have position-dependent operands (optype %s)' %
               (', '.join([str(o) for o in position_dependent])))
        if warn:
            Warning(msg)
        else:
            logger.warn(msg)

    return s