ubidump.py 文件源码

def scanblocks(self):
        """
        creates map of volid + lnum => physical lnum
        """
        self.vmap = defaultdict(lambda : defaultdict(int))
        for lnum in range(self.maxlebs):

            try:
                ec = UbiEcHeader()
                hdr = self.readblock(lnum, 0, ec.hdrsize)
                ec.parse(hdr)

                vid = UbiVidHead()
                viddata = self.readblock(lnum, ec.vid_hdr_ofs, vid.hdrsize)
                vid.parse(viddata)

                self.vmap[vid.vol_id][vid.lnum] = lnum
            except:
                pass