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reactos/rostests/apitests/ntdll/RtlFirstFreeAce.c
Thomas Faber a315554938 [RTL] 
- Return the ACE pointer from RtlFirstFreeAce also if it is at the end of the ACL buffer.
CORE-11304 #resolve

svn path=/trunk/; revision=71382
2016-05-22 22:11:54 +00:00

235 lines
7.2 KiB
C
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/*
* PROJECT: ReactOS API tests
* LICENSE: LGPLv2.1+ - See COPYING.LIB in the top level directory
* PURPOSE: Test for RtlFirstFreeAce
* PROGRAMMERS: Thomas Faber <thomas.faber@reactos.org>
*/
#include <apitest.h>
#include <ndk/mmfuncs.h>
#include <ndk/rtlfuncs.h>
static
PVOID
AllocateGuarded(
_In_ SIZE_T SizeRequested)
{
NTSTATUS Status;
SIZE_T Size = PAGE_ROUND_UP(SizeRequested + PAGE_SIZE);
PVOID VirtualMemory = NULL;
PCHAR StartOfBuffer;
Status = NtAllocateVirtualMemory(NtCurrentProcess(), &VirtualMemory, 0, &Size, MEM_RESERVE, PAGE_NOACCESS);
if (!NT_SUCCESS(Status))
return NULL;
Size -= PAGE_SIZE;
if (Size)
{
Status = NtAllocateVirtualMemory(NtCurrentProcess(), &VirtualMemory, 0, &Size, MEM_COMMIT, PAGE_READWRITE);
if (!NT_SUCCESS(Status))
{
Size = 0;
Status = NtFreeVirtualMemory(NtCurrentProcess(), &VirtualMemory, &Size, MEM_RELEASE);
ok(Status == STATUS_SUCCESS, "Status = %lx\n", Status);
return NULL;
}
}
StartOfBuffer = VirtualMemory;
StartOfBuffer += Size - SizeRequested;
return StartOfBuffer;
}
static
VOID
FreeGuarded(
_In_ PVOID Pointer)
{
NTSTATUS Status;
PVOID VirtualMemory = (PVOID)PAGE_ROUND_DOWN((SIZE_T)Pointer);
SIZE_T Size = 0;
Status = NtFreeVirtualMemory(NtCurrentProcess(), &VirtualMemory, &Size, MEM_RELEASE);
ok(Status == STATUS_SUCCESS, "Status = %lx\n", Status);
}
static
PACL
MakeAcl(
_In_ ULONG AceCount,
...)
{
PACL Acl;
PACE_HEADER AceHeader;
ULONG AclSize;
ULONG AceSizes[10];
ULONG i;
va_list Args;
ASSERT(AceCount <= RTL_NUMBER_OF(AceSizes));
AclSize = sizeof(ACL);
va_start(Args, AceCount);
for (i = 0; i < AceCount; i++)
{
AceSizes[i] = va_arg(Args, int);
AclSize += AceSizes[i];
}
va_end(Args);
Acl = AllocateGuarded(AclSize);
if (!Acl)
{
skip("Failed to allocate %lu bytes\n", AclSize);
return NULL;
}
Acl->AclRevision = ACL_REVISION;
Acl->Sbz1 = 0;
Acl->AclSize = AclSize;
Acl->AceCount = AceCount;
Acl->Sbz2 = 0;
AceHeader = (PACE_HEADER)(Acl + 1);
for (i = 0; i < AceCount; i++)
{
AceHeader->AceType = 0;
AceHeader->AceFlags = 0;
AceHeader->AceSize = AceSizes[i];
AceHeader = (PACE_HEADER)((PCHAR)AceHeader + AceHeader->AceSize);
}
return Acl;
}
START_TEST(RtlFirstFreeAce)
{
PACL Acl;
PACE FirstAce;
BOOLEAN Found;
Acl = MakeAcl(0);
if (Acl)
{
/* Simple empty ACL */
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == (PACE)(Acl + 1), "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Not enough space */
Acl->AclSize = sizeof(ACL) - 1;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Invalid values for all the other fields */
Acl->AclRevision = 76;
Acl->Sbz1 = 0x55;
Acl->AclSize = sizeof(ACL);
Acl->Sbz2 = 0x55;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == (PACE)(Acl + 1), "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
FreeGuarded(Acl);
}
Acl = MakeAcl(1, (int)sizeof(ACE_HEADER));
if (Acl)
{
/* ACL with one ACE */
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == (PACE)((PACE_HEADER)(Acl + 1) + 1), "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* The one ACE doesn't actually fit */
Acl->AclSize = sizeof(ACL);
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == FALSE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Only the first byte fits */
Acl->AclSize = sizeof(ACL) + 1;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Until we cover the whole size we get NULL */
Acl->AclSize = sizeof(ACL) + sizeof(ACE_HEADER) - 1;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
FreeGuarded(Acl);
}
/* Same but bigger */
Acl = MakeAcl(1, (int)sizeof(ACE_HEADER) + 4);
if (Acl)
{
/* ACL with one ACE */
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == (PACE)((PCHAR)(Acl + 1) + sizeof(ACE_HEADER) + 4), "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* The one ACE doesn't actually fit */
Acl->AclSize = sizeof(ACL);
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == FALSE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Only the first byte fits */
Acl->AclSize = sizeof(ACL) + 1;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* Until we cover the whole size we get NULL */
Acl->AclSize = sizeof(ACL) + sizeof(ACE_HEADER) - 3;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
FreeGuarded(Acl);
}
Acl = MakeAcl(4, (int)sizeof(ACE_HEADER), (int)sizeof(ACE_HEADER), (int)sizeof(ACCESS_ALLOWED_ACE), (int)sizeof(ACCESS_ALLOWED_ACE));
if (Acl)
{
/* ACL with one ACE */
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == (PACE)((PCHAR)(Acl + 1) + 2 * sizeof(ACE_HEADER) + 2 * sizeof(ACCESS_ALLOWED_ACE)), "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* One less gives us NULL */
Acl->AclSize = sizeof(ACL) + 2 * sizeof(ACE_HEADER) + 2 * sizeof(ACCESS_ALLOWED_ACE) - 1;
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == TRUE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
/* One ACE less also gives us FALSE */
Acl->AclSize = sizeof(ACL) + 2 * sizeof(ACE_HEADER) + sizeof(ACCESS_ALLOWED_ACE);
FirstAce = InvalidPointer;
Found = RtlFirstFreeAce(Acl, &FirstAce);
ok(Found == FALSE, "Found = %u\n", Found);
ok(FirstAce == NULL, "FirstAce = %p (Acl was %p)\n", FirstAce, Acl);
FreeGuarded(Acl);
}
}
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