Lightemerald/windows-user-space-emulator
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Event manager progress

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momo5502
2025-06-04 18:52:59 +02:00
parent 32fcbf3ded
commit 25295707ec
4 changed files with 110 additions and 70 deletions
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43
src/windows-emulator/syscall_dispatcher.cpp
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@@ -87,9 +87,14 @@ void syscall_dispatcher::dispatch(windows_emulator& win_emu)
return;
}
const std::string_view mod_name = mod ? mod->name : std::string_view{};
const auto res = win_emu.callbacks.on_syscall(syscall_id, address, mod_name, entry->second.name);
if (res == instruction_hook_continuation::skip_instruction)
syscall_event e(c.win_emu, {
.id = syscall_id,
.name = entry->second.name,
});
c.win_emu.manager().handle(e);
if (e.get_output().skip)
{
return;
}
@@ -102,38 +107,6 @@ void syscall_dispatcher::dispatch(windows_emulator& win_emu)
return;
}
if (mod != win_emu.mod_manager.ntdll && mod != win_emu.mod_manager.win32u)
{
win_emu.log.print(color::blue, "Executing inline syscall: %s (0x%X) at 0x%" PRIx64 " (%s)\n",
entry->second.name.c_str(), syscall_id, address, mod ? mod->name.c_str() : "<N/A>");
}
else
{
if (mod->is_within(context.previous_ip))
{
const auto rsp = c.emu.read_stack_pointer();
uint64_t return_address{};
c.emu.try_read_memory(rsp, &return_address, sizeof(return_address));
const auto* caller_mod_name = win_emu.mod_manager.find_name(return_address);
win_emu.log.print(color::dark_gray,
"Executing syscall: %s (0x%X) at 0x%" PRIx64 " via 0x%" PRIx64 " (%s)\n",
entry->second.name.c_str(), syscall_id, address, return_address, caller_mod_name);
}
else
{
const auto* previous_mod = win_emu.mod_manager.find_by_address(context.previous_ip);
win_emu.log.print(color::blue,
"Crafted out-of-line syscall: %s (0x%X) at 0x%" PRIx64 " (%s) via 0x%" PRIx64
" (%s)\n",
entry->second.name.c_str(), syscall_id, address, mod ? mod->name.c_str() : "<N/A>",
context.previous_ip, previous_mod ? previous_mod->name.c_str() : "<N/A>");
}
}
entry->second.handler(c);
}
catch (std::exception& e)