diff options
Diffstat (limited to 'python/examples/jump_table.py')
| -rw-r--r-- | python/examples/jump_table.py | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/python/examples/jump_table.py b/python/examples/jump_table.py index 39fed1a5..439e2ab6 100644 --- a/python/examples/jump_table.py +++ b/python/examples/jump_table.py @@ -1,8 +1,30 @@ +# Copyright (c) 2015-2016 Vector 35 LLC +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +# IN THE SOFTWARE. + # This plugin will attempt to resolve simple jump tables (an array of code pointers) and add the destinations # as indirect branch targets so that the flow graph reflects the jump table's control flow. -from binaryninja import * +from binaryninja.plugin import PluginCommand +from binaryninja.enums import InstructionTextTokenType import struct + def find_jump_table(bv, addr): for block in bv.get_basic_blocks_at(addr): func = block.function @@ -28,7 +50,7 @@ def find_jump_table(bv, addr): # Collect the branch targets for any tables referenced by the clicked instruction branches = [] for token in tokens: - if token.type == "PossibleAddressToken": # Table addresses will be a "possible address" token + if InstructionTextTokenType(token.type) == InstructionTextTokenType.PossibleAddressToken: # Table addresses will be a "possible address" token tbl = token.value print "Found possible table at 0x%x" % tbl i = 0 @@ -56,7 +78,8 @@ def find_jump_table(bv, addr): i += 1 # Set the indirect branch targets on the jump instruction to be the list of targets discovered - func.set_user_indirect_branches(arch, jump_addr, branches) + func.set_user_indirect_branches(jump_addr, branches) + # Create a plugin command so that the user can right click on an instruction referencing a jump table and # invoke the command |