Lightemerald/windows-user-space-emulator
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Some progress

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momo5502
2024-08-20 07:38:06 +02:00
parent 9150d48475
commit fe145a0bae
1 changed files with 66 additions and 1 deletions
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67
src/emulator/syscalls.cpp
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@@ -44,6 +44,11 @@ namespace
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_NOT_SUPPORTED);
}
void handle_NtTraceEvent(const unicorn& uc)
{
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_NOT_SUPPORTED);
}
void handle_NtCreateEvent(const unicorn& uc, process_context& context)
{
const unicorn_object<uint64_t> event_handle{uc, uc.reg(UC_X86_REG_R10)};
@@ -132,7 +137,9 @@ namespace
const auto system_information_length = uc.reg<uint32_t>(UC_X86_REG_R8D);
const unicorn_object<uint32_t> return_length{uc, uc.reg(UC_X86_REG_R9)};
if (info_class == SystemFlushInformation)
if (info_class == SystemFlushInformation
|| info_class == SystemNumaProcessorMap
|| info_class == SystemHypervisorSharedPageInformation)
{
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_NOT_SUPPORTED);
return;
@@ -175,6 +182,58 @@ namespace
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_SUCCESS);
}
void handle_NtQuerySystemInformationEx(const unicorn& uc)
{
const auto info_class = uc.reg<uint32_t>(UC_X86_REG_R10D);
const auto system_information = uc.reg(UC_X86_REG_R8);
const auto system_information_length = uc.reg<uint32_t>(UC_X86_REG_R9D);
const unicorn_object<uint32_t> return_length{uc, uc.read_stack(5)};
if (info_class == SystemFlushInformation
|| info_class == SystemFeatureConfigurationInformation
|| info_class == SystemFeatureConfigurationSectionInformation)
{
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_NOT_SUPPORTED);
return;
}
if (info_class != SystemBasicInformation && info_class != SystemEmulationBasicInformation)
{
printf("Unsupported system info ex class: %X\n", info_class);
uc.stop();
return;
}
if (return_length)
{
return_length.write(sizeof(SYSTEM_BASIC_INFORMATION));
}
if (system_information_length != sizeof(SYSTEM_BASIC_INFORMATION))
{
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_BUFFER_OVERFLOW);
return;
}
const unicorn_object<SYSTEM_BASIC_INFORMATION> info{uc, system_information};
info.access([&](SYSTEM_BASIC_INFORMATION& basic_info)
{
basic_info.Reserved = 0;
basic_info.TimerResolution = 0x0002625a;
basic_info.PageSize = 0x1000;
basic_info.LowestPhysicalPageNumber = 0x00000001;
basic_info.HighestPhysicalPageNumber = 0x00c9c7ff;
basic_info.AllocationGranularity = 0x10000;
basic_info.MinimumUserModeAddress = 0x0000000000010000;
basic_info.MaximumUserModeAddress = 0x00007ffffffeffff;
basic_info.ActiveProcessorsAffinityMask = 0x0000000000000fff;
basic_info.NumberOfProcessors = 1;
});
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_SUCCESS);
}
void handle_NtQueryProcessInformation(const unicorn& uc)
{
const auto process_handle = uc.reg<uint64_t>(UC_X86_REG_R10);
@@ -415,12 +474,18 @@ void handle_syscall(const unicorn& uc, process_context& context)
case 0x50:
handle_NtProtectVirtualMemory(uc);
break;
case 0x5E:
handle_NtTraceEvent(uc);
break;
case 0x78:
handle_NtAllocateVirtualMemoryEx(uc);
break;
case 0x11A:
handle_NtManageHotPatch(uc);
break;
case 0x16E:
handle_NtQuerySystemInformationEx(uc);
break;
default:
printf("Unhandled syscall: %X\n", syscall_id);
uc.reg<uint64_t>(UC_X86_REG_RAX, STATUS_NOT_IMPLEMENTED);