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Support recursive mutants

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momo5502
2024-12-22 16:12:54 +01:00
parent 4be39b1fe7
commit 5122b55661
3 changed files with 122 additions and 14 deletions
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78
src/windows-emulator/syscalls.cpp
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@@ -399,6 +399,32 @@ namespace
return STATUS_SUCCESS;
}
NTSTATUS handle_NtReleaseMutant(const syscall_context& c, const handle mutant_handle,
const emulator_object<LONG> previous_count)
{
if (mutant_handle.value.type != handle_types::mutant)
{
c.win_emu.logger.error("Bad handle type for NtReleaseMutant\n");
c.emu.stop();
return STATUS_NOT_SUPPORTED;
}
auto* mutant = c.proc.mutants.get(mutant_handle);
if (!mutant)
{
return STATUS_INVALID_HANDLE;
}
const auto old_count = mutant->release();
if (previous_count)
{
previous_count.write(old_count);
}
return STATUS_SUCCESS;
}
NTSTATUS handle_NtCreateMutant(const syscall_context& c, const emulator_object<handle> mutant_handle,
const ACCESS_MASK /*desired_access*/,
const emulator_object<OBJECT_ATTRIBUTES> object_attributes,
@@ -426,9 +452,13 @@ namespace
}
mutant e{};
e.locked = initial_owner != FALSE;
e.name = std::move(name);
if (initial_owner)
{
e.try_lock(c.win_emu.current_thread().id);
}
const auto handle = c.proc.mutants.store(std::move(e));
mutant_handle.write(handle);
@@ -2632,6 +2662,39 @@ namespace
return STATUS_SUCCESS;
}
NTSTATUS handle_NtOpenSemaphore(const syscall_context& c, const emulator_object<handle> semaphore_handle,
const ACCESS_MASK /*desired_access*/,
const emulator_object<OBJECT_ATTRIBUTES> object_attributes)
{
if (!object_attributes)
{
return STATUS_INVALID_PARAMETER;
}
const auto attributes = object_attributes.read();
if (!attributes.ObjectName)
{
return STATUS_INVALID_PARAMETER;
}
const auto name = read_unicode_string(c.emu, attributes.ObjectName);
if (name.empty())
{
return STATUS_INVALID_PARAMETER;
}
for (const auto& semaphore : c.proc.semaphores)
{
if (semaphore.second.name == name)
{
semaphore_handle.write(c.proc.semaphores.make_handle(semaphore.first));
return STATUS_SUCCESS;
}
}
return STATUS_OBJECT_NAME_NOT_FOUND;
}
NTSTATUS handle_NtCreateSemaphore(const syscall_context& c, const emulator_object<handle> semaphore_handle,
const ACCESS_MASK /*desired_access*/,
const emulator_object<OBJECT_ATTRIBUTES> object_attributes,
@@ -2650,6 +2713,17 @@ namespace
}
}
if (!s.name.empty())
{
for (const auto& semaphore : c.proc.semaphores)
{
if (semaphore.second.name == s.name)
{
return STATUS_OBJECT_NAME_EXISTS;
}
}
}
const auto handle = c.proc.semaphores.store(std::move(s));
semaphore_handle.write(handle);
@@ -3014,6 +3088,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtWriteFile);
add_handler(NtRaiseHardError);
add_handler(NtCreateSemaphore);
add_handler(NtOpenSemaphore);
add_handler(NtReadVirtualMemory);
add_handler(NtQueryInformationToken);
add_handler(NtDxgkIsFeatureEnabled);
@@ -3059,6 +3134,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtQueryAttributesFile);
add_handler(NtWaitForMultipleObjects);
add_handler(NtCreateMutant);
add_handler(NtReleaseMutant);
#undef add_handler
}