From b82b9f71f8204b1c55e397ca3de1bbd28a5ba86e Mon Sep 17 00:00:00 2001
From: Dmitry Timoshkov <dmitry@baikal.ru>
Date: Thu, 28 Apr 2016 18:14:36 +0800
Subject: ntdll: Implement NtSetLdtEntries.
---
dlls/kernel32/tests/thread.c | 79 ++++++++++++++++++++++++++++++++++++++++++++
dlls/ntdll/nt.c | 28 +++++++++++++++-
2 files changed, 106 insertions(+), 1 deletion(-)
diff --git a/dlls/kernel32/tests/thread.c b/dlls/kernel32/tests/thread.c
index b5ad1da..8c5cb3c 100644
--- a/dlls/kernel32/tests/thread.c
+++ b/dlls/kernel32/tests/thread.c
@@ -102,6 +102,7 @@ static NTSTATUS (WINAPI *pNtQueryInformationThread)(HANDLE,THREADINFOCLASS,PVOID
static BOOL (WINAPI *pGetThreadGroupAffinity)(HANDLE,GROUP_AFFINITY*);
static BOOL (WINAPI *pSetThreadGroupAffinity)(HANDLE,const GROUP_AFFINITY*,GROUP_AFFINITY*);
static NTSTATUS (WINAPI *pNtSetInformationThread)(HANDLE,THREADINFOCLASS,LPCVOID,ULONG);
+static NTSTATUS (WINAPI *pNtSetLdtEntries)(ULONG,ULONG,ULONG,ULONG,ULONG,ULONG);
static HANDLE create_target_process(const char *arg)
{
@@ -1140,6 +1141,82 @@ static void test_GetThreadSelectorEntry(void)
ok(entry.HighWord.Bits.Granularity == 0, "expected 0, got %u\n", entry.HighWord.Bits.Granularity);
}
+static void test_NtSetLdtEntries(void)
+{
+ THREAD_DESCRIPTOR_INFORMATION tdi;
+ LDT_ENTRY ds_entry;
+ CONTEXT ctx;
+ DWORD ret;
+ union
+ {
+ LDT_ENTRY entry;
+ DWORD dw[2];
+ } sel;
+
+ if (!pNtSetLdtEntries)
+ {
+ win_skip("NtSetLdtEntries is not available on this platform\n");
+ return;
+ }
+
+ if (pNtSetLdtEntries(0, 0, 0, 0, 0, 0) == STATUS_NOT_IMPLEMENTED) /* WoW64 */
+ {
+ win_skip("NtSetLdtEntries is not implemented on this platform\n");
+ return;
+ }
+
+ ret = pNtSetLdtEntries(0, 0, 0, 0, 0, 0);
+ ok(!ret, "NtSetLdtEntries failed: %08x\n", ret);
+
+ ctx.ContextFlags = CONTEXT_SEGMENTS;
+ ret = GetThreadContext(GetCurrentThread(), &ctx);
+ ok(ret, "GetThreadContext failed\n");
+
+ tdi.Selector = ctx.SegDs;
+ ret = pNtQueryInformationThread(GetCurrentThread(), ThreadDescriptorTableEntry, &tdi, sizeof(tdi), &ret);
+ ok(!ret, "NtQueryInformationThread failed: %08x\n", ret);
+ ds_entry = tdi.Entry;
+
+ tdi.Selector = 0x000f;
+ ret = pNtQueryInformationThread(GetCurrentThread(), ThreadDescriptorTableEntry, &tdi, sizeof(tdi), &ret);
+ ok(ret == STATUS_ACCESS_VIOLATION, "got %08x\n", ret);
+
+ tdi.Selector = 0x001f;
+ ret = pNtQueryInformationThread(GetCurrentThread(), ThreadDescriptorTableEntry, &tdi, sizeof(tdi), &ret);
+ ok(ret == STATUS_ACCESS_VIOLATION, "NtQueryInformationThread returned %08x\n", ret);
+
+ ret = GetThreadSelectorEntry(GetCurrentThread(), 0x000f, &sel.entry);
+ ok(!ret, "GetThreadSelectorEntry should fail\n");
+
+ ret = GetThreadSelectorEntry(GetCurrentThread(), 0x001f, &sel.entry);
+ ok(!ret, "GetThreadSelectorEntry should fail\n");
+
+ memset(&sel.entry, 0x9a, sizeof(sel.entry));
+ ret = GetThreadSelectorEntry(GetCurrentThread(), ctx.SegDs, &sel.entry);
+ ok(ret, "GetThreadSelectorEntry failed\n");
+ ok(!memcmp(&ds_entry, &sel.entry, sizeof(ds_entry)), "entries do not match\n");
+
+ ret = pNtSetLdtEntries(0x000f, sel.dw[0], sel.dw[1], 0x001f, sel.dw[0], sel.dw[1]);
+ ok(!ret || broken(ret == STATUS_INVALID_LDT_DESCRIPTOR) /*XP*/, "NtSetLdtEntries failed: %08x\n", ret);
+
+ if (!ret)
+ {
+ memset(&sel.entry, 0x9a, sizeof(sel.entry));
+ ret = GetThreadSelectorEntry(GetCurrentThread(), 0x000f, &sel.entry);
+ todo_wine
+ ok(ret, "GetThreadSelectorEntry failed\n");
+ todo_wine
+ ok(!memcmp(&ds_entry, &sel.entry, sizeof(ds_entry)), "entries do not match\n");
+
+ memset(&sel.entry, 0x9a, sizeof(sel.entry));
+ ret = GetThreadSelectorEntry(GetCurrentThread(), 0x001f, &sel.entry);
+ todo_wine
+ ok(ret, "GetThreadSelectorEntry failed\n");
+ todo_wine
+ ok(!memcmp(&ds_entry, &sel.entry, sizeof(ds_entry)), "entries do not match\n");
+ }
+}
+
#endif /* __i386__ */
static HANDLE finish_event;
@@ -1953,6 +2030,7 @@ static void init_funcs(void)
X(NtQueryInformationThread);
X(RtlGetThreadErrorMode);
X(NtSetInformationThread);
+ X(NtSetLdtEntries);
}
#undef X
}
@@ -2006,6 +2084,7 @@ START_TEST(thread)
#ifdef __i386__
test_SetThreadContext();
test_GetThreadSelectorEntry();
+ test_NtSetLdtEntries();
#endif
test_QueueUserWorkItem();
test_RegisterWaitForSingleObject();
diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index 3f5ae2c..fbea627 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -56,6 +56,7 @@
#include "winternl.h"
#include "ntdll_misc.h"
#include "wine/server.h"
+#include "wine/library.h"
#include "ddk/wdm.h"
#ifdef __APPLE__
@@ -2790,7 +2791,32 @@ NTSTATUS WINAPI NtSystemDebugControl(SYSDBG_COMMAND command, PVOID inbuffer, ULO
NTSTATUS WINAPI NtSetLdtEntries(ULONG selector1, ULONG entry1_low, ULONG entry1_high,
ULONG selector2, ULONG entry2_low, ULONG entry2_high)
{
- FIXME("(%u, %u, %u, %u, %u, %u): stub\n", selector1, entry1_low, entry1_high, selector2, entry2_low, entry2_high);
+#ifdef __i386__
+ union
+ {
+ LDT_ENTRY entry;
+ ULONG dw[2];
+ } sel;
+
+ TRACE("(%x,%x,%x,%x,%x,%x)\n", selector1, entry1_low, entry1_high, selector2, entry2_low, entry2_high);
+ if (selector1)
+ {
+ sel.dw[0] = entry1_low;
+ sel.dw[1] = entry1_high;
+ if (wine_ldt_set_entry(selector1, &sel.entry) < 0)
+ return STATUS_ACCESS_DENIED;
+ }
+ if (selector2)
+ {
+ sel.dw[0] = entry2_low;
+ sel.dw[1] = entry2_high;
+ if (wine_ldt_set_entry(selector2, &sel.entry) < 0)
+ return STATUS_ACCESS_DENIED;
+ }
+ return STATUS_SUCCESS;
+#else
+ FIXME("(%x,%x,%x,%x,%x,%x): stub\n", selector1, entry1_low, entry1_high, selector2, entry2_low, entry2_high);
return STATUS_NOT_IMPLEMENTED;
+#endif
}
--
2.8.0