[ion] 26701: - Add missing ACE structures to ntifs.h. - Add missing SeLengthSid to ntifs.h. - Implement CmpHiveRootSecurityDescriptor and use it in CmpInitializeSystemHive and CmInitSystem1 to properly secure system-created hives. - Implement CmpInitializeHardwareConfiguration and call it. Its job is to populate the hardware hive, but FreeLDR already does this, so it doesn't do much at the moment.
11 May
2007
11 May
'07
6:15 p.m.
Author: ion
Date: Fri May 11 22:15:13 2007
New Revision: 26701
URL: http://svn.reactos.org/svn/reactos?rev=26701&view=rev
Log:
- Add missing ACE structures to ntifs.h.
- Add missing SeLengthSid to ntifs.h.
- Implement CmpHiveRootSecurityDescriptor and use it in CmpInitializeSystemHive and
CmInitSystem1 to properly secure system-created hives.
- Implement CmpInitializeHardwareConfiguration and call it. Its job is to populate the
hardware hive, but FreeLDR already does this, so it doesn't do much at the moment.
Added:
trunk/reactos/ntoskrnl/config/cmse.c
Modified:
trunk/reactos/include/ddk/ntifs.h
trunk/reactos/ntoskrnl/cm/cm.h
trunk/reactos/ntoskrnl/cm/registry.c
trunk/reactos/ntoskrnl/config/cmconfig.c
trunk/reactos/ntoskrnl/ntoskrnl.rbuild
Modified: trunk/reactos/include/ddk/ntifs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ddk/ntifs.h?rev=26…
==============================================================================
--- trunk/reactos/include/ddk/ntifs.h (original)
+++ trunk/reactos/include/ddk/ntifs.h Fri May 11 22:15:13 2007
@@ -1724,6 +1724,41 @@
USHORT AceSize;
} ACE_HEADER, *PACE_HEADER;
+typedef struct _ACCESS_ALLOWED_ACE
+{
+ ACE_HEADER Header;
+ ACCESS_MASK Mask;
+ ULONG SidStart;
+} ACCESS_ALLOWED_ACE, *PACCESS_ALLOWED_ACE;
+
+typedef struct _ACCESS_DENIED_ACE
+{
+ ACE_HEADER Header;
+ ACCESS_MASK Mask;
+ ULONG SidStart;
+} ACCESS_DENIED_ACE, *PACCESS_DENIED_ACE;
+
+typedef struct _SYSTEM_AUDIT_ACE
+{
+ ACE_HEADER Header;
+ ACCESS_MASK Mask;
+ ULONG SidStart;
+} SYSTEM_AUDIT_ACE, *PSYSTEM_AUDIT_ACE;
+
+typedef struct _SYSTEM_ALARM_ACE
+{
+ ACE_HEADER Header;
+ ACCESS_MASK Mask;
+ ULONG SidStart;
+} SYSTEM_ALARM_ACE, *PSYSTEM_ALARM_ACE;
+
+typedef struct _SYSTEM_MANDATORY_LABEL_ACE
+{
+ ACE_HEADER Header;
+ ACCESS_MASK Mask;
+ ULONG SidStart;
+} SYSTEM_MANDATORY_LABEL_ACE, *PSYSTEM_MANDATORY_LABEL_ACE;
+
typedef struct _TUNNEL {
FAST_MUTEX Mutex;
PRTL_SPLAY_LINKS Cache;
@@ -4305,6 +4340,10 @@
);
#endif /* (VER_PRODUCTBUILD >= 2195) */
+
+
+#define SeLengthSid( Sid ) \
+ (8 + (4 * ((SID *)Sid)->SubAuthorityCount))
#define SeDeleteClientSecurity(C) { \
if (SeTokenType((C)->ClientToken) == TokenPrimary) { \
Modified: trunk/reactos/ntoskrnl/cm/cm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/cm/cm.h?rev=26701…
==============================================================================
--- trunk/reactos/ntoskrnl/cm/cm.h (original)
+++ trunk/reactos/ntoskrnl/cm/cm.h Fri May 11 22:15:13 2007
@@ -418,6 +418,66 @@
PHHIVE RegistryHive,
ULONG FileType);
+VOID
+CmiCheckKey(BOOLEAN Verbose,
+ HANDLE Key);
+
+BOOLEAN
+INIT_FUNCTION
+CmImportSystemHive(PCHAR ChunkBase,
+ ULONG ChunkSize,
+ OUT PEREGISTRY_HIVE *RegistryHive);
+
+BOOLEAN
+INIT_FUNCTION
+CmImportHardwareHive(PCHAR ChunkBase,
+ ULONG ChunkSize,
+ OUT PEREGISTRY_HIVE *RegistryHive);
+
+NTSTATUS
+NTAPI
+CmpSetSystemValues(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
+
+NTSTATUS
+NTAPI
+CmpCreateControlSet(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
+
+NTSTATUS
+NTAPI
+CmpInitializeMachineDependentConfiguration(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
+
+NTSTATUS
+NTAPI
+CmpInitializeHive(PEREGISTRY_HIVE *RegistryHive,
+ ULONG OperationType,
+ ULONG HiveFlags,
+ ULONG FileType,
+ PVOID HiveData OPTIONAL,
+ HANDLE Primary,
+ HANDLE Log,
+ HANDLE External,
+ PUNICODE_STRING FileName OPTIONAL,
+ ULONG CheckFlags);
+
+USHORT
+NTAPI
+CmpCopyName(IN PHHIVE Hive,
+ IN PWCHAR Destination,
+ IN PUNICODE_STRING Source);
+
+USHORT
+NTAPI
+CmpNameSize(IN PHHIVE Hive,
+ IN PUNICODE_STRING Name);
+
+NTSTATUS
+NTAPI
+CmpInitializeHardwareConfiguration(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
+
+PSECURITY_DESCRIPTOR
+NTAPI
+CmpHiveRootSecurityDescriptor(VOID);
+
#if 0
static __inline PVOID xHvGetCell(char *file, int line, PHHIVE Hive, HCELL_INDEX Cell)
{
Modified: trunk/reactos/ntoskrnl/cm/registry.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/cm/registry.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/cm/registry.c (original)
+++ trunk/reactos/ntoskrnl/cm/registry.c Fri May 11 22:15:13 2007
@@ -48,60 +48,6 @@
static GENERIC_MAPPING CmiKeyMapping =
{KEY_READ, KEY_WRITE, KEY_EXECUTE, KEY_ALL_ACCESS};
-
-
-
-VOID
-CmiCheckKey(BOOLEAN Verbose,
- HANDLE Key);
-
-BOOLEAN
-INIT_FUNCTION
-CmImportSystemHive(PCHAR ChunkBase,
- ULONG ChunkSize,
- OUT PEREGISTRY_HIVE *RegistryHive);
-
-BOOLEAN
-INIT_FUNCTION
-CmImportHardwareHive(PCHAR ChunkBase,
- ULONG ChunkSize,
- OUT PEREGISTRY_HIVE *RegistryHive);
-
-NTSTATUS
-NTAPI
-CmpSetSystemValues(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
-
-NTSTATUS
-NTAPI
-CmpCreateControlSet(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
-
-NTSTATUS
-NTAPI
-CmpInitializeMachineDependentConfiguration(IN PLOADER_PARAMETER_BLOCK LoaderBlock);
-
-NTSTATUS
-NTAPI
-CmpInitializeHive(PEREGISTRY_HIVE *RegistryHive,
- ULONG OperationType,
- ULONG HiveFlags,
- ULONG FileType,
- PVOID HiveData OPTIONAL,
- HANDLE Primary,
- HANDLE Log,
- HANDLE External,
- PUNICODE_STRING FileName OPTIONAL,
- ULONG CheckFlags);
-
-USHORT
-NTAPI
-CmpCopyName(IN PHHIVE Hive,
- IN PWCHAR Destination,
- IN PUNICODE_STRING Source);
-
-USHORT
-NTAPI
-CmpNameSize(IN PHHIVE Hive,
- IN PUNICODE_STRING Name);
static VOID STDCALL
CmiHiveSyncDpcRoutine(PKDPC Dpc,
@@ -253,6 +199,7 @@
UNICODE_STRING KeyName;
PEREGISTRY_HIVE SystemHive;
UNICODE_STRING HiveName = RTL_CONSTANT_STRING(L"SYSTEM");
+ PSECURITY_DESCRIPTOR SecurityDescriptor;
PAGED_CODE();
/* Setup the ansi string */
@@ -309,9 +256,16 @@
Allocate = TRUE;
}
+ /* Create the default security descriptor */
+ SecurityDescriptor = CmpHiveRootSecurityDescriptor();
+
/* Attach it to the system key */
RtlInitUnicodeString(&KeyName, REG_SYSTEM_KEY_NAME);
- Status = CmpLinkHiveToMaster(&KeyName, NULL, SystemHive, Allocate, NULL);
+ Status = CmpLinkHiveToMaster(&KeyName,
+ NULL,
+ SystemHive,
+ Allocate,
+ SecurityDescriptor);
if (!NT_SUCCESS(Status)) return FALSE;
/* Success! */
@@ -495,6 +449,7 @@
PEREGISTRY_HIVE HardwareHive;
PVOID BaseAddress;
ULONG Length;
+ PSECURITY_DESCRIPTOR SecurityDescriptor;
PAGED_CODE();
/* Initialize the hive list */
@@ -559,13 +514,16 @@
KEBUGCHECKEX(CONFIG_INITIALIZATION_FAILED, 1, 3, 0, 0);
}
+ /* Create the default security descriptor */
+ SecurityDescriptor = CmpHiveRootSecurityDescriptor();
+
/* Create '\Registry\Machine' key. */
RtlInitUnicodeString(&KeyName, L"\\REGISTRY\\MACHINE");
InitializeObjectAttributes(&ObjectAttributes,
&KeyName,
OBJ_CASE_INSENSITIVE,
NULL,
- NULL);
+ SecurityDescriptor);
Status = NtCreateKey(&KeyHandle,
KEY_READ | KEY_WRITE,
&ObjectAttributes,
@@ -588,7 +546,7 @@
&KeyName,
OBJ_CASE_INSENSITIVE,
NULL,
- NULL);
+ SecurityDescriptor);
Status = NtCreateKey(&KeyHandle,
KEY_READ | KEY_WRITE,
&ObjectAttributes,
@@ -642,11 +600,23 @@
/* Attach it to the machine key */
RtlInitUnicodeString(&KeyName, REG_HARDWARE_KEY_NAME);
- Status = CmpLinkHiveToMaster(&KeyName, NULL, HardwareHive, FALSE, NULL);
+ Status = CmpLinkHiveToMaster(&KeyName,
+ NULL,
+ HardwareHive,
+ FALSE,
+ SecurityDescriptor);
if (!NT_SUCCESS(Status))
{
/* Bugcheck */
KEBUGCHECKEX(CONFIG_INITIALIZATION_FAILED, 1, 12, Status, 0);
+ }
+
+ /* Fill out the Hardware key with the ARC Data from the Loader */
+ Status = CmpInitializeHardwareConfiguration(KeLoaderBlock);
+ if (!NT_SUCCESS(Status))
+ {
+ /* Bugcheck */
+ KEBUGCHECKEX(CONFIG_INITIALIZATION_FAILED, 1, 13, Status, 0);
}
/* Initialize machine-dependent information into the registry */
Modified: trunk/reactos/ntoskrnl/config/cmconfig.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/config/cmconfig.c…
==============================================================================
--- trunk/reactos/ntoskrnl/config/cmconfig.c (original)
+++ trunk/reactos/ntoskrnl/config/cmconfig.c Fri May 11 22:15:13 2007
@@ -194,3 +194,81 @@
return Status;
}
+NTSTATUS
+NTAPI
+CmpInitializeHardwareConfiguration(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
+{
+ NTSTATUS Status;
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ HANDLE KeyHandle;
+ ULONG Disposition;
+ UNICODE_STRING KeyName;
+
+ /* Setup the key name */
+ RtlInitUnicodeString(&KeyName,
+ L"\\Registry\\Machine\\Hardware\\DeviceMap");
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE,
+ NULL,
+ NULL);
+
+ /* Create the device map key */
+ Status = NtCreateKey(&KeyHandle,
+ KEY_READ | KEY_WRITE,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ 0,
+ &Disposition);
+ if (!NT_SUCCESS(Status)) return Status;
+ NtClose(KeyHandle);
+
+ /* Nobody should've created this key yet! */
+ //ASSERT(Disposition == REG_CREATED_NEW_KEY);
+
+ /* Setup the key name */
+ RtlInitUnicodeString(&KeyName,
+ L"\\Registry\\Machine\\Hardware\\Description");
+ InitializeObjectAttributes(&ObjectAttributes,
+ &KeyName,
+ OBJ_CASE_INSENSITIVE,
+ NULL,
+ NULL);
+
+ /* Create the description key */
+ Status = NtCreateKey(&KeyHandle,
+ KEY_READ | KEY_WRITE,
+ &ObjectAttributes,
+ 0,
+ NULL,
+ 0,
+ &Disposition);
+ if (!NT_SUCCESS(Status)) return Status;
+
+ /* Nobody should've created this key yet! */
+ //ASSERT(Disposition == REG_CREATED_NEW_KEY);
+
+ /* Allocate the configuration data buffer */
+ CmpConfigurationData = ExAllocatePoolWithTag(PagedPool,
+ CmpConfigurationAreaSize,
+ TAG_CM);
+ if (!CmpConfigurationData) return STATUS_INSUFFICIENT_RESOURCES;
+
+ /* Check if we got anything from NTLDR */
+ if (LoaderBlock->ConfigurationRoot)
+ {
+ ASSERTMSG("NTLDR ARC Hardware Tree Not Supported!\n", FALSE);
+ }
+ else
+ {
+ /* Nothing else to do */
+ Status = STATUS_SUCCESS;
+ }
+
+ /* Close our handle, free the buffer and return status */
+ ExFreePool(CmpConfigurationData);
+ NtClose(KeyHandle);
+ return Status;
+}
+
Added: trunk/reactos/ntoskrnl/config/cmse.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/config/cmse.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/config/cmse.c (added)
+++ trunk/reactos/ntoskrnl/config/cmse.c Fri May 11 22:15:13 2007
@@ -1,0 +1,138 @@
+/*
+ * PROJECT: ReactOS Kernel
+ * LICENSE: GPL - See COPYING in the top level directory
+ * FILE: ntoskrnl/config/cmse.c
+ * PURPOSE: Configuration Manager - Security Subsystem Interface
+ * PROGRAMMERS: Alex Ionescu (alex.ionescu(a)reactos.org)
+ */
+
+/* INCLUDES ******************************************************************/
+
+#include "ntoskrnl.h"
+#include "cm.h"
+#define NDEBUG
+#include "debug.h"
+
+/* GLOBALS *******************************************************************/
+
+/* FUNCTIONS *****************************************************************/
+
+PSECURITY_DESCRIPTOR
+NTAPI
+CmpHiveRootSecurityDescriptor(VOID)
+{
+ NTSTATUS Status;
+ PSECURITY_DESCRIPTOR SecurityDescriptor;
+ PACL Acl, AclCopy;
+ PSID Sid[3];
+ SID_IDENTIFIER_AUTHORITY WorldAuthority = {SECURITY_WORLD_SID_AUTHORITY};
+ SID_IDENTIFIER_AUTHORITY NtAuthority = {SECURITY_NT_AUTHORITY};
+ ULONG AceLength, AclLength, SidLength;
+ PACE_HEADER AceHeader;
+ ULONG i;
+ PAGED_CODE();
+
+ /* Phase 1: Allocate SIDs */
+ SidLength = RtlLengthRequiredSid(1);
+ Sid[0] = ExAllocatePoolWithTag(PagedPool, SidLength, TAG_CM);
+ Sid[1] = ExAllocatePoolWithTag(PagedPool, SidLength, TAG_CM);
+ Sid[2] = ExAllocatePoolWithTag(PagedPool, SidLength, TAG_CM);
+ SidLength = RtlLengthRequiredSid(2);
+ Sid[3] = ExAllocatePoolWithTag(PagedPool, SidLength, TAG_CM);
+
+ /* Make sure all SIDs were allocated */
+ if (!(Sid[0]) || !(Sid[1]) || !(Sid[2]) || !(Sid[3]))
+ {
+ /* Bugcheck */
+ KEBUGCHECKEX(REGISTRY_ERROR, 2, 1, 0, 0);
+ }
+
+ /* Phase 2: Initialize all SIDs */
+ Status = RtlInitializeSid(Sid[0], &WorldAuthority, 1);
+ Status |= RtlInitializeSid(Sid[1], &NtAuthority, 1);
+ Status |= RtlInitializeSid(Sid[2], &NtAuthority, 1);
+ Status |= RtlInitializeSid(Sid[3], &NtAuthority, 2);
+ if (!NT_SUCCESS(Status)) KEBUGCHECKEX(REGISTRY_ERROR, 2, 2, 0, 0);
+
+ /* Phase 2: Setup SID Sub Authorities */
+ *RtlSubAuthoritySid(Sid[0], 0) = SECURITY_WORLD_RID;
+ *RtlSubAuthoritySid(Sid[1], 0) = SECURITY_RESTRICTED_CODE_RID;
+ *RtlSubAuthoritySid(Sid[2], 0) = SECURITY_LOCAL_SYSTEM_RID;
+ *RtlSubAuthoritySid(Sid[3], 0) = SECURITY_BUILTIN_DOMAIN_RID;
+ *RtlSubAuthoritySid(Sid[3], 1) = DOMAIN_ALIAS_RID_ADMINS;
+
+ /* Make sure all SIDs are valid */
+ ASSERT(RtlValidSid(Sid[0]));
+ ASSERT(RtlValidSid(Sid[1]));
+ ASSERT(RtlValidSid(Sid[2]));
+ ASSERT(RtlValidSid(Sid[3]));
+
+ /* Phase 3: Calculate ACL Length */
+ AclLength = sizeof(ACL);
+ for (i = 0; i < 4; i++)
+ {
+ /* This is what MSDN says to do */
+ AceLength = FIELD_OFFSET(ACCESS_ALLOWED_ACE, SidStart);
+ AceLength += SeLengthSid(Sid[i]);
+ AclLength += AceLength;
+ }
+
+ /* Phase 3: Allocate the ACL */
+ Acl = ExAllocatePoolWithTag(PagedPool, AclLength, TAG_CM);
+ if (!Acl) KEBUGCHECKEX(REGISTRY_ERROR, 2, 3, 0, 0);
+
+ /* Phase 4: Create the ACL */
+ Status = RtlCreateAcl(Acl, AclLength, ACL_REVISION);
+ if (!NT_SUCCESS(Status)) KEBUGCHECKEX(REGISTRY_ERROR, 2, 4, Status, 0);
+
+ /* Phase 5: Build the ACL */
+ Status = RtlAddAccessAllowedAce(Acl, ACL_REVISION, KEY_ALL_ACCESS, Sid[0]);
+ Status |= RtlAddAccessAllowedAce(Acl, ACL_REVISION, KEY_ALL_ACCESS, Sid[1]);
+ Status |= RtlAddAccessAllowedAce(Acl, ACL_REVISION, KEY_READ, Sid[2]);
+ Status |= RtlAddAccessAllowedAce(Acl, ACL_REVISION, KEY_READ, Sid[3]);
+ if (!NT_SUCCESS(Status)) KEBUGCHECKEX(REGISTRY_ERROR, 2, 5, Status, 0);
+
+ /* Phase 5: Make the ACEs inheritable */
+ Status = RtlGetAce(Acl, 0,( PVOID*)&AceHeader);
+ ASSERT(NT_SUCCESS(Status));
+ AceHeader->AceFlags |= CONTAINER_INHERIT_ACE;
+ Status = RtlGetAce(Acl, 1, (PVOID*)&AceHeader);
+ ASSERT(NT_SUCCESS(Status));
+ AceHeader->AceFlags |= CONTAINER_INHERIT_ACE;
+ Status = RtlGetAce(Acl, 2, (PVOID*)&AceHeader);
+ ASSERT(NT_SUCCESS(Status));
+ AceHeader->AceFlags |= CONTAINER_INHERIT_ACE;
+ Status = RtlGetAce(Acl, 3, (PVOID*)&AceHeader);
+ ASSERT(NT_SUCCESS(Status));
+ AceHeader->AceFlags |= CONTAINER_INHERIT_ACE;
+
+ /* Phase 6: Allocate the security descriptor and make space for the ACL */
+ SecurityDescriptor = ExAllocatePoolWithTag(PagedPool,
+ sizeof(SECURITY_DESCRIPTOR) +
+ AclLength,
+ TAG_CM);
+ if (!SecurityDescriptor) KEBUGCHECKEX(REGISTRY_ERROR, 2, 6, 0, 0);
+
+ /* Phase 6: Make a copy of the ACL */
+ AclCopy = (PACL)((PISECURITY_DESCRIPTOR)SecurityDescriptor + 1);
+ RtlCopyMemory(AclCopy, Acl, AclLength);
+
+ /* Phase 7: Create the security descriptor */
+ Status = RtlCreateSecurityDescriptor(SecurityDescriptor,
+ SECURITY_DESCRIPTOR_REVISION);
+ if (!NT_SUCCESS(Status)) KEBUGCHECKEX(REGISTRY_ERROR, 2, 7, Status, 0);
+
+ /* Phase 8: Set the ACL as a DACL */
+ Status = RtlSetDaclSecurityDescriptor(SecurityDescriptor,
+ TRUE,
+ AclCopy,
+ FALSE);
+ if (!NT_SUCCESS(Status)) KEBUGCHECKEX(REGISTRY_ERROR, 2, 8, Status, 0);
+
+ /* Free the SIDs and original ACL */
+ for (i = 0; i < 4; i++) ExFreePool(Sid[i]);
+ ExFreePool(Acl);
+
+ /* Return the security descriptor */
+ return SecurityDescriptor;
+}
Modified: trunk/reactos/ntoskrnl/ntoskrnl.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ntoskrnl.rbuild?r…
==============================================================================
--- trunk/reactos/ntoskrnl/ntoskrnl.rbuild (original)
+++ trunk/reactos/ntoskrnl/ntoskrnl.rbuild Fri May 11 22:15:13 2007
@@ -98,6 +98,7 @@
<file>cmmapvw.c</file>
<file>cmname.c</file>
<file>cmparse.c</file>
+ <file>cmse.c</file>
<file>cmsecach.c</file>
<file>cmsysini.c</file>
<file>cmvalue.c</file>
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