[PATCH v5 2/2] ntoskrnl.exe: Add FltBuildDefaultSecurityDescriptor test

[Alistair Leslie-Hughes]

From: Alistair Leslie-Hughes

Signed-off-by: Alistair Leslie-Hughes 
---
 dlls/ntoskrnl.exe/tests/driver.c | 76 ++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/dlls/ntoskrnl.exe/tests/driver.c b/dlls/ntoskrnl.exe/tests/driver.c
index a80bef78fab..16cdc2e69ea 100644
--- a/dlls/ntoskrnl.exe/tests/driver.c
+++ b/dlls/ntoskrnl.exe/tests/driver.c
@@ -32,6 +32,7 @@
 #include "ddk/ntddk.h"
 #include "ddk/ntifs.h"
 #include "ddk/wdm.h"
+#include "ddk/fltkernel.h"

#include "driver.h"

@@ -2326,6 +2327,80 @@ static void test_driver_object_extension(void)
     ok(get_obj_ext == NULL, "got %p\n", get_obj_ext);
 }

+static void test_default_security(void)
+{
+    NTSTATUS (WINAPI *pFltBuildDefaultSecurityDescriptor)(PSECURITY_DESCRIPTOR *, ACCESS_MASK);
+    void (WINAPI *pFltFreeSecurityDescriptor)(PSECURITY_DESCRIPTOR);
+    PSECURITY_DESCRIPTOR sd = NULL;
+    NTSTATUS status;
+    PSID group = NULL, owner = NULL;
+    BOOLEAN isdefault, present;
+    PACL acl = NULL;
+    PACCESS_ALLOWED_ACE ace;
+    SID_IDENTIFIER_AUTHORITY auth = { SECURITY_NULL_SID_AUTHORITY };
+    PSID sid1, sid2;
+
+    pFltBuildDefaultSecurityDescriptor = get_proc_address("FltBuildDefaultSecurityDescriptor");
+    pFltFreeSecurityDescriptor = get_proc_address("FltFreeSecurityDescriptor");
+
+    if (!pFltBuildDefaultSecurityDescriptor || !pFltFreeSecurityDescriptor)
+    {
+        win_skip("FltBuildDefaultSecurityDescriptor is not available.\n");
+        return;
+    }
+
+    status = pFltBuildDefaultSecurityDescriptor(&sd, STANDARD_RIGHTS_ALL);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+    ok(sd != NULL, "Failed to return descriptor\n");
+
+    status = RtlGetGroupSecurityDescriptor(sd, &group, &isdefault);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+    ok(group == NULL, "group isn't NULL\n");
+
+    status = RtlGetOwnerSecurityDescriptor(sd, &owner, &isdefault);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+    ok(owner == NULL, "owner isn't NULL\n");
+
+    status = RtlGetDaclSecurityDescriptor(sd, &present, &acl, &isdefault);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+    ok(acl != NULL, "acl is NULL\n");
+    ok(acl->AceCount == 2, "got %d\n", acl->AceCount);
+
+    sid1 = RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, RtlLengthRequiredSid(2));
+    RtlInitializeSid(sid1, &auth, 2);
+    *RtlSubAuthoritySid(sid1, 0)  = SECURITY_BUILTIN_DOMAIN_RID;
+    *RtlSubAuthoritySid(sid1, 1) = DOMAIN_GROUP_RID_ADMINS;
+
+    sid2 = RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, RtlLengthRequiredSid(1));
+    RtlInitializeSid(sid2, &auth, 1);
+    *RtlSubAuthoritySid(sid2, 0)  = SECURITY_LOCAL_SYSTEM_RID;
+
+    /* SECURITY_BUILTIN_DOMAIN_RID */
+    status = RtlGetAce(acl, 0, (void**)&ace);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+
+    ok(ace->Header.AceType == ACCESS_ALLOWED_ACE_TYPE, "got %#x\n", ace->Header.AceType);
+    ok(ace->Header.AceFlags == 0, "got %#x\n", ace->Header.AceFlags);
+    ok(ace->Mask == STANDARD_RIGHTS_ALL, "got %#lx\n", ace->Mask);
+
+    ok(RtlEqualSid(sid1, (PSID)&ace->SidStart), "SID not equal\n");
+
+    /* SECURITY_LOCAL_SYSTEM_RID */
+    status = RtlGetAce(acl, 1, (void**)&ace);
+    ok(status == STATUS_SUCCESS, "got %#lx\n", status);
+
+    ok(ace->Header.AceType == ACCESS_ALLOWED_ACE_TYPE, "got %#x\n", ace->Header.AceType);
+    ok(ace->Header.AceFlags == 0, "got %#x\n", ace->Header.AceFlags);
+    ok(ace->Mask == STANDARD_RIGHTS_ALL, "got %#lx\n", ace->Mask);
+
+    ok(RtlEqualSid(sid2, (PSID)&ace->SidStart), "SID not equal\n");
+
+    RtlFreeHeap(GetProcessHeap(), 0, sid1);
+    RtlFreeHeap(GetProcessHeap(), 0, sid2);
+
+    pFltFreeSecurityDescriptor(sd);
+}
+
 static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *stack)
 {
     void *buffer = irp->AssociatedIrp.SystemBuffer;
@@ -2370,6 +2445,7 @@ static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *st
     test_process_memory(test_input);
     test_permanence();
     test_driver_object_extension();
+    test_default_security();

IoMarkIrpPending(irp);
     IoQueueWorkItem(work_item, main_test_task, DelayedWorkQueue, irp);