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Diffstat (limited to 'capstone/suite/fuzz.py')
-rwxr-xr-x | capstone/suite/fuzz.py | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/capstone/suite/fuzz.py b/capstone/suite/fuzz.py new file mode 100755 index 000000000..17a364749 --- /dev/null +++ b/capstone/suite/fuzz.py @@ -0,0 +1,126 @@ +#!/usr/bin/python + +# Simple fuzzing tool by disassembling random code. By Nguyen Anh Quynh, 2014 +# Syntax: +# ./suite/fuzz.py --> Fuzz all archs +# ./suite/fuzz.py x86 --> Fuzz all X86 (all 16bit, 32bit, 64bit) +# ./suite/fuzz.py x86-16 --> Fuzz X86-32 arch only +# ./suite/fuzz.py x86-32 --> Fuzz X86-32 arch only +# ./suite/fuzz.py x86-64 --> Fuzz X86-64 arch only +# ./suite/fuzz.py arm --> Fuzz all ARM (arm, thumb) +# ./suite/fuzz.py aarch64 --> Fuzz ARM-64 +# ./suite/fuzz.py mips --> Fuzz all Mips (32bit, 64bit) +# ./suite/fuzz.py ppc --> Fuzz PPC + +from capstone import * + +from time import time +from random import randint +import sys + + +# file providing code to disassemble +FILE = '/usr/bin/python' + +TIMES = 64 +INTERVALS = (4, 5, 7, 9, 11, 13) + +all_tests = ( + (CS_ARCH_X86, CS_MODE_16, "X86-16bit (Intel syntax)", 0), + (CS_ARCH_X86, CS_MODE_16, "X86-16bit (ATT syntax)", CS_OPT_SYNTAX_ATT), + (CS_ARCH_X86, CS_MODE_32, "X86-32 (Intel syntax)", 0), + (CS_ARCH_X86, CS_MODE_32, "X86-32 (ATT syntax)", CS_OPT_SYNTAX_ATT), + (CS_ARCH_X86, CS_MODE_64, "X86-64 (Intel syntax)", 0), + (CS_ARCH_X86, CS_MODE_64, "X86-64 (ATT syntax)", CS_OPT_SYNTAX_ATT), + (CS_ARCH_ARM, CS_MODE_ARM, "ARM", 0), + (CS_ARCH_ARM, CS_MODE_THUMB, "THUMB (ARM)", 0), + (CS_ARCH_MIPS, CS_MODE_MIPS32 + CS_MODE_BIG_ENDIAN, "MIPS-32 (Big-endian)", 0), + (CS_ARCH_MIPS, CS_MODE_MIPS64 + CS_MODE_LITTLE_ENDIAN, "MIPS-64-EL (Little-endian)", 0), + (CS_ARCH_ARM64, CS_MODE_ARM, "ARM-64 (AArch64)", 0), + (CS_ARCH_PPC, CS_MODE_BIG_ENDIAN, "PPC", 0), + (CS_ARCH_PPC, CS_MODE_BIG_ENDIAN, "PPC, print register with number only", CS_OPT_SYNTAX_NOREGNAME), + (CS_ARCH_SPARC, CS_MODE_BIG_ENDIAN, "Sparc", 0), + (CS_ARCH_SYSZ, 0, "SystemZ", 0), + (CS_ARCH_XCORE, 0, "XCore", 0), + (CS_ARCH_M68K, 0, "M68K", 0), + (CS_ARCH_RISCV, CS_MODE_RISCV32, "riscv32", 0), + (CS_ARCH_RISCV, CS_MODE_RISCV64, "riscv64", 0), + ) + + +# for debugging +def to_hex(s): + return " ".join("0x" + "{0:x}".format(ord(c)).zfill(2) for c in s) # <-- Python 3 is OK + + +# read @size bytes from @f & return data. +# return None when there is not enough data +def get_code(f, size): + code = f.read(size) + if len(code) != size: # reached end-of-file? + # then reset file position to begin-of-file + f.seek(0) + return None + + return code + + +def cs(md, code): + insns = md.disasm(code, 0) + for i in insns: + if i.address == 0x100000: + print i + + +def cs_lite(md, code): + insns = md.disasm_lite(code, 0) + for (addr, size, mnem, ops) in insns: + if addr == 0x100000: + print i + + +cfile = open(FILE) + +for (arch, mode, comment, syntax) in all_tests: + try: + request = sys.argv[1] + if not request in comment.lower(): + continue + except: + pass + + try: + md = Cs(arch, mode) + md.detail = True + + if syntax != 0: + md.syntax = syntax + + # test disasm() + print("\nFuzzing disasm() @platform: %s" %comment) + for ii in INTERVALS: + print("Interval: %u" %ii) + for j in xrange(1, TIMES): + while (True): + code = get_code(cfile, j * ii) + if code is None: + # EOF? break + break + #print to_hex(code) + cs(md, code) + + # test disasm_lite() + print("Fuzzing disasm_lite() @platform: %s" %comment) + for ii in INTERVALS: + print("Interval: %u" %ii) + for j in xrange(1, TIMES): + while (True): + code = get_code(cfile, j * ii) + if code is None: + # EOF? break + break + #print to_hex(code) + cs_lite(md, code) + + except CsError as e: + print("ERROR: %s" %e) |