def initSection(self, text):
secm = SectionManager(text)
return secm
def restruct(self):
secm = SectionManager()
segm = SegmentManager()
se = SectionExtractor(self.byteList)
for name, body, sh in se.extract():
secm.append(name, body, sh)
segm.mapping(secm)
headerSize = 0x40 + len(segm.getSegmentList()) * 56
body = secm.makeBody(headerSize)
phList = segm.makePh(secm)
secm.resetAddress(0x400000)
print(hex(len(body) + headerSize))
shStrTab = secm.makeShStrSection(headerSize + len(body))
endOfBody = headerSize + len(body + shStrTab)
eh = Eh()
eh.retrieve(self.byteList[0:64])
eh.set('entry_addr', secm.get('.text')['sh'].get('address'))
eh.set('ph_offset', 0x40)
eh.set('sh_offset', endOfBody)
eh.set('ph_num', len(phList))
eh.set('sh_num', len(secm.get()) + 1) # plus null section
eh.set('shstrndx', secm.find('.shstrtab') + 1)
#eh.echo()
byteList = eh.output()
for ph in phList:
byteList += ph.output()
byteList += body
byteList += shStrTab
byteList += [0x00 for x in range(64)]
for h in secm.get():
byteList += h['sh'].output()
p = (c_ubyte * len(byteList))()
p[:] = byteList
with open('elf.out', 'wb') as fp:
fp.write(p)
def restruct(self):
secm = SectionManager()
segm = SegmentManager()
# get sections from byteList
se = SectionExtractor(self.byteList)
for name, body, sh in se.extract():
secm.append(name, body, sh)
# map sections to segments
segm.mapping(secm)
# 0x40 is ELF header size and 56 is program header size
headerSize = 0x40 + len(segm.getSegmentList()) * 56
body = secm.makeBody(headerSize)
phList = segm.makePh(secm)
secm.resetAddress(0x400000)
# make shstrtbl
shStrTab = secm.makeShStrSection(headerSize + len(body))
endOfBody = headerSize + len(body + shStrTab)
# make ELF header
eh = Eh()
eh.retrieve(self.byteList[0:64]) # get ELF header from origin file
eh.set('entry_addr', secm.get('.text')['sh'].get('address'))
eh.set('ph_offset', 0x40)
eh.set('sh_offset', endOfBody)
eh.set('ph_num', len(phList))
eh.set('sh_num', len(secm.get())+1) # plus null section
eh.set('shstrndx', secm.find('.shstrtab')+1)
# for debug
#eh.echo()
# make file by restructed byteList
byteList = eh.output()
for ph in phList:
byteList += ph.output()
byteList += body
byteList += shStrTab
byteList += [0x00 for x in range(64)]
for h in secm.get():
byteList += h['sh'].output()
p = (c_ubyte * len(byteList))()
p[:] = byteList
with open('elf.out', 'wb') as fp:
fp.write(p)
def restruct(self):
secm = SectionManager()
segm = SegmentManager()
se = SectionExtractor(self.byteList)
for name, body, sh in se.extract():
secm.append(name, body, sh)
segm.mapping(secm)
headerSize = 0x40 + len(segm.getSegmentList()) * 56
body = secm.makeBody(headerSize)
phList = segm.makePh(secm)
secm.resetAddress(0x400000)
print(hex(len(body)+headerSize))
shStrTab = secm.makeShStrSection(headerSize + len(body))
endOfBody = headerSize + len(body + shStrTab)
eh = Eh()
eh.retrieve(self.byteList[0:64])
eh.set('entry_addr', secm.get('.text')['sh'].get('address'))
eh.set('ph_offset', 0x40)
eh.set('sh_offset', endOfBody)
eh.set('ph_num', len(phList))
eh.set('sh_num', len(secm.get())+1) # plus null section
eh.set('shstrndx', secm.find('.shstrtab')+1)
#eh.echo()
byteList = eh.output()
for ph in phList:
byteList += ph.output()
byteList += body
byteList += shStrTab
byteList += [0x00 for x in range(64)]
for h in secm.get():
byteList += h['sh'].output()
p = (c_ubyte * len(byteList))()
p[:] = byteList
with open('elf.out', 'wb') as fp:
fp.write(p)