313 lines
8.8 KiB
Python
313 lines
8.8 KiB
Python
# -*- coding: UTF-8 -*-
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#
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# Reference Lister
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#
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# List all functions and all references to them in the current section.
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#
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# Implemented with the idautils module
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#
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from idautils import *
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from idaapi import *
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from idc import *
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import networkx as nx
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import cfg_constructor as cfg
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import pdb
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from raw_graphs import *
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#from discovRe_feature.discovRe import *
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from discovRe import *
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sys.path.append("D:\\hkn\\project_folder\\Gencoding3\\Genius3\\python")
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#import wingdbstub
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#wingdbstub.Ensure()
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def print_obj(obj):
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# "打印对象的所有属性"
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print(obj.__dict__)
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def gt_funcNames(ea):
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funcs = []
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plt_func, plt_data = processpltSegs()
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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if funcname in plt_func:
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print(funcname)
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continue
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funcs.append(funcname)
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return funcs
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def get_funcs(ea):
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funcs = {}
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# Get current ea
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# Loop from start to end in the current segment
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plt_func, plt_data = processpltSegs()
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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if funcname in plt_func:
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continue
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func = get_func(funcea)
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blocks = FlowChart(func)
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funcs[funcname] = []
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for bl in blocks:
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start = bl.startEA
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end = bl.endEA
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funcs[funcname].append((start, end))
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return funcs
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# used for the callgraph generation.
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def get_func_namesWithoutE(ea):
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funcs = {}
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plt_func, plt_data = processpltSegs()
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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if 'close' in funcname:
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print(funcea)
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if funcname in plt_func:
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print(funcname)
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continue
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funcs[funcname] = funcea
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return funcs
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# used for the callgraph generation.
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def get_func_names(ea):
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funcs = {}
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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funcs[funcname] = funcea
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return funcs
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def get_func_bases(ea):
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funcs = {}
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plt_func, plt_data = processpltSegs()
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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if funcname in plt_func:
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continue
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funcs[funcea] = funcname
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return funcs
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def get_func_range(ea):
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funcs = {}
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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func = get_func(funcea)
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funcs[funcname] = (func.startEA, func.endEA)
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return funcs
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def get_unified_funcname(ea):
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funcname = GetFunctionName(ea)
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if len(funcname) > 0:
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if '.' == funcname[0]:
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funcname = funcname[1:]
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return funcname
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def get_func_sequences(ea):
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funcs_bodylist = {}
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funcs = get_funcs(ea)
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for funcname in funcs:
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if funcname not in funcs_bodylist:
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funcs_bodylist[funcname] = []
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for start, end in funcs[funcname]:
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inst_addr = start
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while inst_addr <= end:
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opcode = GetMnem(inst_addr)
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funcs_bodylist[funcname].append(opcode)
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inst_addr = NextHead(inst_addr)
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return funcs_bodylist
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def get_func_cfgs_c(ea):
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# type: (object) -> object
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binary_name = idc.GetInputFile()
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raw_cfgs = raw_graphs(binary_name)
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externs_eas, ea_externs = processpltSegs()
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i = 0
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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func = get_func(funcea)
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print(i)
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i += 1
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icfg = cfg.getCfg(func, externs_eas, ea_externs)
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func_f = get_discoverRe_feature(func, icfg[0])
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bb_f = get_bb_features(func)
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raw_g = raw_graph(funcname, icfg, func_f, bb_f)
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raw_cfgs.append(raw_g) # raw_graphs 是另一个python class，存储raw_graph的list。定义在 raw_graph.py
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#print(raw_g.__dict__)
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#print(raw_g) 由于raw_graph、raw_graphs都是class，直接print只会打印<raw_graphs.raw_graphs instance at 0x09888FD0>，不能打印对象的属性。 #https://blog.51cto.com/steed/2046408 print_obj、 print(obj.__dict__)
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return raw_cfgs
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def get_func_cfgs_ctest(ea):
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binary_name = idc.GetInputFile()
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raw_cfgs = raw_graphs(binary_name)
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externs_eas, ea_externs = processpltSegs()
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i = 0
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diffs = {}
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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func = get_func(funcea)
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print(i)
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i += 1
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icfg, old_cfg = cfg.getCfg(func, externs_eas, ea_externs)
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diffs[funcname] = (icfg, old_cfg)
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#raw_g = raw_graph(funcname, icfg)
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#raw_cfgs.append(raw_g)
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return diffs
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def get_func_cfgs(ea):
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func_cfglist = {}
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i = 0
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for funcea in Functions(SegStart(ea)):
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funcname = get_unified_funcname(funcea)
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func = get_func(funcea)
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print(i)
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i += 1
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try:
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icfg = cfg.getCfg(func)
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func_cfglist[funcname] = icfg
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except:
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pass
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return func_cfglist
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def get_func_cfg_sequences(func_cfglist):
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func_cfg_seqlist = {}
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for funcname in func_cfglist:
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func_cfg_seqlist[funcname] = {}
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cfg = func_cfglist[funcname][0]
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for start, end in cfg:
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codesq = get_sequences(start, end)
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func_cfg_seqlist[funcname][(start,end)] = codesq
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return func_cfg_seqlist
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def get_sequences(start, end):
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seq = []
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inst_addr = start
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while inst_addr <= end:
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opcode = GetMnem(inst_addr)
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seq.append(opcode)
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inst_addr = NextHead(inst_addr)
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return seq
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def get_stack_arg(func_addr):
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print(func_addr)
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args = []
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stack = GetFrame(func_addr)
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if not stack:
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return []
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firstM = GetFirstMember(stack)
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lastM = GetLastMember(stack)
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i = firstM
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while i <=lastM:
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mName = GetMemberName(stack,i)
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mSize = GetMemberSize(stack,i)
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if mSize:
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i = i + mSize
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else:
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i = i+4
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if mName not in args and mName and ' s' not in mName and ' r' not in mName:
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args.append(mName)
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return args
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#pickle.dump(funcs, open('C:/Documents and Settings/Administrator/Desktop/funcs','w'))
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def processExternalSegs():
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funcdata = {}
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datafunc = {}
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for n in xrange(idaapi.get_segm_qty()):
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seg = idaapi.getnseg(n)
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ea = seg.startEA
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segtype = idc.GetSegmentAttr(ea, idc.SEGATTR_TYPE)
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if segtype in [idc.SEG_XTRN]:
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start = idc.SegStart(ea)
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end = idc.SegEnd(ea)
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cur = start
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while cur <= end:
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name = get_unified_funcname(cur)
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funcdata[name] = hex(cur)
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cur = NextHead(cur)
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return funcdata
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def processpltSegs():
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funcdata = {}
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datafunc = {}
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for n in xrange(idaapi.get_segm_qty()):
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seg = idaapi.getnseg(n)
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ea = seg.startEA
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segname = SegName(ea)
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if segname in ['.plt', 'extern', '.MIPS.stubs']:
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start = seg.startEA
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end = seg.endEA
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cur = start
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while cur < end:
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name = get_unified_funcname(cur)
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funcdata[name] = hex(cur)
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datafunc[cur]= name
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cur = NextHead(cur)
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return funcdata, datafunc
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def processDataSegs():
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funcdata = {}
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datafunc = {}
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for n in xrange(idaapi.get_segm_qty()):
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seg = idaapi.getnseg(n)
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ea = seg.startEA
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segtype = idc.GetSegmentAttr(ea, idc.SEGATTR_TYPE)
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if segtype in [idc.SEG_DATA, idc.SEG_BSS]:
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start = idc.SegStart(ea)
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end = idc.SegEnd(ea)
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cur = start
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while cur <= end:
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refs = [v for v in DataRefsTo(cur)]
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for fea in refs:
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name = get_unified_funcname(fea)
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if len(name)== 0:
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continue
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if name not in funcdata:
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funcdata[name] = [cur]
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else:
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funcdata[name].append(cur)
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if cur not in datafunc:
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datafunc[cur] = [name]
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else:
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datafunc[cur].append(name)
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cur = NextHead(cur)
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return funcdata, datafunc
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def obtainDataRefs(callgraph):
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datarefs = {}
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funcdata, datafunc = processDataSegs()
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for node in callgraph:
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if node in funcdata:
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datas = funcdata[node]
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for dd in datas:
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refs = datafunc[dd]
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refs = list(set(refs))
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if node in datarefs:
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print(refs)
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datarefs[node] += refs
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datarefs[node] = list(set(datarefs[node]))
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else:
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datarefs[node] = refs
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return datarefs
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