Anyway to syncronize common type declaration between Ida databases?

Ilya_K · February 23, 2025, 6:13pm

Often revers engendering target consist of multiple modules that interact between each. So they have some types that are common for them. Now is synchronizing such types between ida databases for each module are manual task that time consuming and prone to errors.
AFAIK no Lumina or Teams can’t do type synchronization for different databases.
Any plans to implement such feature?

Harding · March 2, 2025, 12:41pm

Maybe you can export your types as a C header file and import that into the other database? If you want to make a script that automates that you can take a look at how I export types to a header file in:

github.com/Harding-Stardust/community_base

community_base.py

d1e443f41


      
              res_of_print_decls: int = _ida_typeinf.print_decls(l_printer, l_type_info_library_of_local_types, [], l_flags )
              if res_of_print_decls > 0:
                  log_print(f'Exported {res_of_print_decls} types', arg_debug)
              else:
                  log_print('ida_typeinf.print_decl() failed', arg_type="ERROR")
                  return None
          
              return l_printer.lines
          
          @validate_call(config={"arbitrary_types_allowed": True, "strict": True, "validate_return": True})
          def export_h_file(arg_h_file: str = "", arg_add_comment_at_top: bool = True, arg_debug: bool = False) -> str:
              ''' Export all local types into a header file
          
                  @param arg_h_file The destination file, if empty, then generate input_file.idb_path + ".h"
                  @param arg_add_comment_at_top Add a comment field with some info about the file the header file was exported from
          
                  Replacement for ida_typeinf.print_decls()
              '''
              l_save_to_file: str = arg_h_file
              if not l_save_to_file:
                  l_save_to_file = input_file.idb_path + ".h"

Ndgs · March 11, 2025, 10:43pm

In IDA9 (not sure about other versions) there is an option in the “Produce File” menu to create an IDC with type information.

You can then use Run Script in another IDA instance and select that IDC file to create those types in that other IDB

At least I think this is a native IDA 9. It’s possible a plugin I use added it. But it seems native, UX-wise

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Anyway to syncronize common type declaration between Ida databases?

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