Miasm v2

* API has changed, so old scripts need updates
* See example for API usage
* Use tcc or llvm for jit emulation
* Go to test and run test_all.py to check install

Enjoy !

1 files changed, 175 insertions, 0 deletions

diff --git a/miasm2/core/bin_stream.py b/miasm2/core/bin_stream.py
new file mode 100644
index 00000000..7ae6d3fa
--- /dev/null
+++ b/miasm2/core/bin_stream.py
@@ -0,0 +1,175 @@
+#
+# Copyright (C) 2011 EADS France, Fabrice Desclaux <fabrice.desclaux@eads.net>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+
+class bin_stream(object):
+
+    def __init__(self, *args, **kargs):
+        pass
+
+    def __repr__(self):
+        return "<%s !!>" % self.__class__.__name__
+
+    def hexdump(self, offset, l):
+        return
+
+    def getbytes(self, start, l=1):
+        return self.bin[start:start + l]
+
+    def getbits(self, start, n):
+        if not n:
+            return 0
+        o = 0
+        if n > self.getlen() * 8:
+            raise ValueError('not enought bits %r %r' % (n, len(self.bin) * 8))
+        while n:
+            # print 'xxx', n, start
+            i = start / 8
+            c = self.getbytes(i)
+            if not c:
+                raise IOError
+            c = ord(c)
+            # print 'o', hex(c)
+            r = 8 - start % 8
+            c &= (1 << r) - 1
+            # print 'm', hex(c)
+            l = min(r, n)
+            # print 'd', r-l
+            c >>= (r - l)
+            o <<= l
+            o |= c
+            n -= l
+            start += l
+        return o
+
+
+class bin_stream_str(bin_stream):
+
+    def __init__(self, bin="", offset=0L, shift=0):
+        bin_stream.__init__(self)
+        if offset > len(bin):
+            raise IOError
+        self.bin = bin
+        self.offset = offset
+        self.shift = shift
+        self.l = len(bin)
+        if "is_addr_in" in self.bin.__class__.__dict__:
+            self.is_addr_in = lambda ad: self.bin.is_addr_in(ad)
+
+    def getbytes(self, start, l=1):
+        if start + l > self.l:
+            raise IOError
+
+        return super(bin_stream_str, self).getbytes(start + self.shift, l)
+
+    def readbs(self, l=1):
+        if self.offset + l > self.l:
+            raise IOError
+        self.offset += l
+        print hex(self.offset + self.shift)
+        return self.bin[self.offset - l + self.shift:self.offset + self.shift]
+
+    def writebs(self, l=1):
+        raise ValueError('writebs unsupported')
+
+    def __str__(self):
+        out = self.bin[self.offset + self.shift:]
+        return out
+
+    def setoffset(self, val):
+        self.offset = val
+
+    def __len__(self):
+        return len(self.bin) - self.offset + self.shift
+
+    def getlen(self):
+        return len(self.bin) - self.offset + self.shift
+
+
+class bin_stream_file(bin_stream):
+
+    def __init__(self, bin, offset=0L):
+        bin_stream.__init__(self)
+        self.bin = bin
+        self.bin.seek(0, 2)
+        self.l = self.bin.tell()
+        self.offset = offset
+
+    def getoffset(self):
+        return self.bin.tell()
+
+    def setoffset(self, val):
+        self.bin.seek(val)
+    offset = property(getoffset, setoffset)
+
+    def readbs(self, l=1):
+        if self.offset + l > self.l:
+            raise IOError
+        return self.bin.read(l)
+
+    def writebs(self, l=1):
+        if self.offset + l > self.l:
+            raise IOError
+        return self.bin.write(l)
+
+    def __str__(self):
+        return str(self.bin)
+
+
+class bin_stream_pe(bin_stream):
+
+    def __init__(self, bin="", offset=0L):
+        bin_stream.__init__(self)
+        # print 'ELF/PE'
+        self.mylen = len(bin)
+        if offset > bin.__len__():
+            raise IOError
+        self.bin = bin
+        self.offset = offset
+        self.l = bin.__len__()
+        if "is_addr_in" in self.bin.__class__.__dict__:
+            self.is_addr_in = lambda ad: self.bin.is_addr_in(ad)
+
+    def getlen(self):
+        return self.mylen
+        # s = self.bin.parent.SHList[-1]
+        # l = self.bin.parent.rva2virt(s.addr+s.size)
+        # return l
+
+    def readbs(self, l=1):
+        if self.offset + l > self.l:
+            raise IOError
+        self.offset += l
+        return self.bin(self.offset - l, self.offset)
+
+    def writebs(self, l=1):
+        raise ValueError('writebs unsupported')
+
+    def getbytes(self, start, l=1):
+        return self.bin(start, start + l)
+
+    def __str__(self):
+        out = self.bin[self.offset:]
+        return out
+
+    def setoffset(self, val):
+        self.offset = val
+
+
+class bin_stream_elf(bin_stream_pe):
+    pass