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ntdll: Return the 32-bit PEB for NtQueryInformationProcess(ProcessWow64Information).

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This commit is contained in:
Alexandre Julliard 2023-07-11 13:43:26 +02:00
parent 7e521b4db3
commit fb5cfacce5
3 changed files with 17 additions and 6 deletions
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5
dlls/ntdll/tests/info.c
View file

@ -1735,7 +1735,8 @@ static void test_query_process_wow64(void)
status = NtQueryInformationProcess(GetCurrentProcess(), ProcessWow64Information, pbi, sizeof(ULONG_PTR), NULL);
ok( status == STATUS_SUCCESS, "Expected STATUS_SUCCESS, got %08lx\n", status);
ok( is_wow64 == (pbi[0] != 0), "is_wow64 %x, pbi[0] %Ix\n", is_wow64, pbi[0]);
ok( pbi[0] != dummy, "pbi[0] %Ix\n", pbi[0]);
if (is_wow64)
ok( (void *)pbi[0] == NtCurrentTeb()->Peb, "pbi[0] %Ix / %p\n", pbi[0], NtCurrentTeb()->Peb);
ok( pbi[1] == dummy, "pbi[1] changed to %Ix\n", pbi[1]);
/* Test written size on 64 bit by checking high 32 bit buffer */
if (sizeof(ULONG_PTR) > sizeof(DWORD))
@ -1750,6 +1751,8 @@ static void test_query_process_wow64(void)
status = NtQueryInformationProcess(GetCurrentProcess(), ProcessWow64Information, pbi, sizeof(ULONG_PTR), &ReturnLength);
ok( status == STATUS_SUCCESS, "Expected STATUS_SUCCESS, got %08lx\n", status);
ok( is_wow64 == (pbi[0] != 0), "is_wow64 %x, pbi[0] %Ix\n", is_wow64, pbi[0]);
if (is_wow64)
ok( (void *)pbi[0] == NtCurrentTeb()->Peb, "pbi[0] %Ix / %p\n", pbi[0], NtCurrentTeb()->Peb);
ok( pbi[1] == dummy, "pbi[1] changed to %Ix\n", pbi[1]);
ok( ReturnLength == sizeof(ULONG_PTR), "Inconsistent length %ld\n", ReturnLength);

7
dlls/ntdll/tests/wow64.c
View file

@ -277,6 +277,7 @@ static void test_peb_teb(void)
PEB32 peb32;
RTL_USER_PROCESS_PARAMETERS params;
RTL_USER_PROCESS_PARAMETERS32 params32;
ULONG_PTR peb_ptr;
Wow64DisableWow64FsRedirection( &redir );
@ -317,6 +318,12 @@ static void test_peb_teb(void)
ok( !status, "ProcessBasicInformation failed %lx\n", status );
ok( proc_info.PebBaseAddress == teb.Peb, "wrong peb %p / %p\n", proc_info.PebBaseAddress, teb.Peb );
status = NtQueryInformationProcess( pi.hProcess, ProcessWow64Information,
&peb_ptr, sizeof(peb_ptr), NULL );
ok( !status, "ProcessWow64Information failed %lx\n", status );
ok( (void *)peb_ptr == (is_wow64 ? teb.Peb : ULongToPtr(teb32.Peb)),
"wrong peb %p\n", (void *)peb_ptr );
if (!ReadProcessMemory( pi.hProcess, proc_info.PebBaseAddress, &peb, sizeof(peb), &res )) res = 0;
ok( res == sizeof(peb), "wrong len %Ix\n", res );
ok( !peb.BeingDebugged, "BeingDebugged is %u\n", peb.BeingDebugged );

11
dlls/ntdll/unix/process.c
View file

@ -1430,9 +1430,8 @@ NTSTATUS WINAPI NtQueryInformationProcess( HANDLE handle, PROCESSINFOCLASS class
case ProcessWow64Information:
len = sizeof(ULONG_PTR);
if (size != len) return STATUS_INFO_LENGTH_MISMATCH;
else if (!info) ret = STATUS_ACCESS_VIOLATION;
else if (!handle) ret = STATUS_INVALID_HANDLE;
else if (handle == GetCurrentProcess()) *(ULONG_PTR *)info = is_wow64();
if (handle == GetCurrentProcess())
*(ULONG_PTR *)info = is_old_wow64() ? (ULONG_PTR)peb : (ULONG_PTR)wow_peb;
else
{
ULONG_PTR val = 0;
@ -1440,10 +1439,12 @@ NTSTATUS WINAPI NtQueryInformationProcess( HANDLE handle, PROCESSINFOCLASS class
SERVER_START_REQ( get_process_info )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req ))) val = (reply->machine != native_machine);
ret = wine_server_call( req );
if (!ret && !is_machine_64bit( reply->machine ) && is_machine_64bit( native_machine ))
val = reply->peb + 0x1000;
}
SERVER_END_REQ;
*(ULONG_PTR *)info = val;
if (!ret) *(ULONG_PTR *)info = val;
}
break;