mirror of
https://github.com/reactos/reactos.git
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[NTOSKRNL]
Add basic implementation of the SRM server svn path=/branches/kernel-fun/; revision=62292
This commit is contained in:
Timo Kreuzer
parent
3d06212d1b
commit
c2f355e9b8
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@ -22,6 +22,11 @@ MmArmInitSystem(
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IN PLOADER_PARAMETER_BLOCK LoaderBlock
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);
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BOOLEAN
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NTAPI
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SeRmInitPhase1(
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VOID);
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typedef struct _INIT_BUFFER
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{
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WCHAR DebugBuffer[256];
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@ -668,52 +673,52 @@ ExpInitSystemPhase1(VOID)
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DPRINT1("Executive: Event Pair initialization failed\n");
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return FALSE;
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}
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/* Initialize mutants */
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if (ExpInitializeMutantImplementation() == FALSE)
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{
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DPRINT1("Executive: Mutant initialization failed\n");
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return FALSE;
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}
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/* Initialize callbacks */
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if (ExpInitializeCallbacks() == FALSE)
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{
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DPRINT1("Executive: Callback initialization failed\n");
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return FALSE;
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}
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/* Initialize semaphores */
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if (ExpInitializeSemaphoreImplementation() == FALSE)
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{
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DPRINT1("Executive: Semaphore initialization failed\n");
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return FALSE;
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}
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/* Initialize timers */
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if (ExpInitializeTimerImplementation() == FALSE)
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{
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DPRINT1("Executive: Timer initialization failed\n");
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return FALSE;
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}
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/* Initialize profiling */
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if (ExpInitializeProfileImplementation() == FALSE)
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{
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DPRINT1("Executive: Profile initialization failed\n");
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return FALSE;
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}
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/* Initialize UUIDs */
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ExpInitUuids();
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/* Initialize keyed events */
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if (ExpInitializeKeyedEventImplementation() == FALSE)
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{
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DPRINT1("Executive: Keyed event initialization failed\n");
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return FALSE;
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}
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/* Initialize Win32K */
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if (ExpWin32kInit() == FALSE)
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{
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@ -1949,6 +1954,9 @@ Phase1InitializationDiscard(IN PVOID Context)
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MmFreeLoaderBlock(LoaderBlock);
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LoaderBlock = Context = NULL;
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/* Initialize the SRM in phase 1 */
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if (!SeRmInitPhase1()) KeBugCheck(PROCESS1_INITIALIZATION_FAILED);
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/* Update progress bar */
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InbvUpdateProgressBar(100);
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@ -267,6 +267,7 @@ list(APPEND SOURCE
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${REACTOS_SOURCE_DIR}/ntoskrnl/se/sd.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/se/semgr.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/se/sid.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/se/srm.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/se/token.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/vf/driver.c
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${REACTOS_SOURCE_DIR}/ntoskrnl/wmi/wmi.c
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624
reactos/ntoskrnl/se/srm.c
Normal file
624
reactos/ntoskrnl/se/srm.c
Normal file
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@ -0,0 +1,624 @@
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/se/srm.c
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* PURPOSE: Security Reference Monitor Server
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*
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* PROGRAMMERS: Timo Kreuzer (timo.kreuzer@reactos.org)
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*/
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/* INCLUDES *******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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extern LUID SeSystemAuthenticationId;
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extern LUID SeAnonymousAuthenticationId;
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/* PRIVATE DEFINITIONS ********************************************************/
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#define SEP_LOGON_SESSION_TAG 'sLeS'
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enum _RM_API_NUMBER
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{
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RmAuditSetCommand = 1,
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RmCreateLogonSession = 2,
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RmDeleteLogonSession = 3
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};
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typedef struct _SEP_RM_API_MESSAGE
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{
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PORT_MESSAGE Header;
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ULONG ApiNumber;
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union
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{
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UCHAR Fill[PORT_MAXIMUM_MESSAGE_LENGTH - sizeof(PORT_MESSAGE)];
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NTSTATUS ResultStatus;
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struct
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{
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BOOLEAN Enabled;
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ULONG Flags[9];
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} SetAuditEvent;
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LUID LogonLuid;
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} u;
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} SEP_RM_API_MESSAGE, *PSEP_RM_API_MESSAGE;
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typedef struct _SEP_LOGON_SESSION_REFERENCES
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{
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struct _SEP_LOGON_SESSION_REFERENCES *Next;
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LUID LogonId;
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ULONG ReferenceCount;
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ULONG Flags;
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PDEVICE_MAP pDeviceMap;
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LIST_ENTRY TokenList;
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} SEP_LOGON_SESSION_REFERENCES, *PSEP_LOGON_SESSION_REFERENCES;
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VOID
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NTAPI
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SepRmCommandServerThread(
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PVOID StartContext);
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static
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NTSTATUS
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SepRmCreateLogonSession(
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PLUID LogonLuid);
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/* GLOBALS ********************************************************************/
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HANDLE SeRmCommandPort;
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HANDLE SeLsaInitEvent;
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PVOID SepCommandPortViewBase;
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PVOID SepCommandPortViewRemoteBase;
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ULONG_PTR SepCommandPortViewBaseOffset;
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static HANDLE SepRmCommandMessagePort;
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BOOLEAN SepAdtAuditingEnabled;
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ULONG SepAdtMinListLength = 0x2000;
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ULONG SepAdtMaxListLength = 0x3000;
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#define POLICY_AUDIT_EVENT_TYPE_COUNT 9 // (AuditCategoryAccountLogon - AuditCategorySystem + 1)
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UCHAR SeAuditingState[POLICY_AUDIT_EVENT_TYPE_COUNT];
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KGUARDED_MUTEX SepRmDbLock;
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PSEP_LOGON_SESSION_REFERENCES SepLogonSessions;
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/* PRIVATE FUNCTIONS **********************************************************/
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NTSTATUS
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NTAPI
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SepRegQueryHelper(
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PCWSTR KeyName,
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PCWSTR ValueName,
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ULONG ValueType,
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ULONG DataLength,
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PVOID ValueData)
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{
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UNICODE_STRING ValueNameString;
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UNICODE_STRING KeyNameString;
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ULONG ResultLength;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE KeyHandle = NULL;
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struct
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{
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KEY_VALUE_PARTIAL_INFORMATION Partial;
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UCHAR Buffer[64];
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} KeyValueInformation;
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NTSTATUS Status, CloseStatus;
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PAGED_CODE();
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RtlInitUnicodeString(&KeyNameString, KeyName);
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InitializeObjectAttributes(&ObjectAttributes,
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&KeyNameString,
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OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenKey(&KeyHandle, KEY_QUERY_VALUE, &ObjectAttributes);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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RtlInitUnicodeString(&ValueNameString, ValueName);
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Status = ZwQueryValueKey(KeyHandle,
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&ValueNameString,
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KeyValuePartialInformation,
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&KeyValueInformation.Partial,
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sizeof(KeyValueInformation),
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&ResultLength);
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if (!NT_SUCCESS(Status))
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{
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goto Cleanup;
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}
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if ((KeyValueInformation.Partial.Type != ValueType) ||
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(KeyValueInformation.Partial.DataLength != DataLength))
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{
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Status = STATUS_OBJECT_TYPE_MISMATCH;
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goto Cleanup;
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}
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if (ValueType == REG_BINARY)
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{
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RtlCopyMemory(ValueData, KeyValueInformation.Partial.Data, DataLength);
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}
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else if (ValueType == REG_DWORD)
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{
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*(PULONG)ValueData = *(PULONG)KeyValueInformation.Partial.Data;
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}
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else
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{
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Status = STATUS_INVALID_PARAMETER;
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}
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Cleanup:
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CloseStatus = ZwClose(KeyHandle);
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ASSERT(NT_SUCCESS( CloseStatus ));
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return Status;
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}
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BOOLEAN
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NTAPI
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SeRmInitPhase1(
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VOID)
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{
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UNICODE_STRING Name;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE ThreadHandle;
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NTSTATUS Status;
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// Windows does this in SeRmInitPhase0, but it should not matter
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KeInitializeGuardedMutex(&SepRmDbLock);
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Status = SepRmCreateLogonSession(&SeSystemAuthenticationId);
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if (!NT_VERIFY(NT_SUCCESS(Status)))
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{
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return FALSE;
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}
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Status = SepRmCreateLogonSession(&SeAnonymousAuthenticationId);
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if (!NT_VERIFY(NT_SUCCESS(Status)))
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{
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return FALSE;
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}
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/* Create the SeRm command port */
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RtlInitUnicodeString(&Name, L"\\SeRmCommandPort");
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InitializeObjectAttributes(&ObjectAttributes, &Name, 0, NULL, NULL);
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Status = ZwCreatePort(&SeRmCommandPort,
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&ObjectAttributes,
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sizeof(ULONG),
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PORT_MAXIMUM_MESSAGE_LENGTH,
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2 * PAGE_SIZE);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Security: Rm Create Command Port failed 0x%lx\n", Status);
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return FALSE;
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}
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/* Create SeLsaInitEvent */
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RtlInitUnicodeString(&Name, L"\\SeLsaInitEvent");
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InitializeObjectAttributes(&ObjectAttributes, &Name, 0, NULL, NULL);
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Status = ZwCreateEvent(&SeLsaInitEvent,
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GENERIC_WRITE,
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&ObjectAttributes,
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NotificationEvent,
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FALSE);
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if (!NT_VERIFY((NT_SUCCESS(Status))))
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{
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DPRINT1("Security: LSA init event creation failed.0x%xl\n", Status);
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return FALSE;
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}
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/* Create the SeRm server thread */
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Status = PsCreateSystemThread(&ThreadHandle,
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THREAD_ALL_ACCESS,
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NULL,
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NULL,
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NULL,
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SepRmCommandServerThread,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Security: Rm Server Thread creation failed 0x%lx\n", Status);
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return FALSE;
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}
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ObCloseHandle(ThreadHandle, KernelMode);
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return TRUE;
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}
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static
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VOID
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SepAdtInitializeBounds()
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{
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struct
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{
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ULONG MaxLength;
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ULONG MinLength;
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} ListBounds;
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NTSTATUS Status;
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PAGED_CODE();
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Status = SepRegQueryHelper(L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Lsa",
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L"Bounds",
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REG_BINARY,
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sizeof(ListBounds),
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&ListBounds);
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if (!NT_SUCCESS(Status))
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{
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/* No registry values, so keep hardcoded defaults */
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return;
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}
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/* Check if the bounds are valid */
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if ((ListBounds.MaxLength < ListBounds.MinLength) ||
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(ListBounds.MinLength < 16) ||
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(ListBounds.MaxLength - ListBounds.MinLength < 16))
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{
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DPRINT1("ListBounds are invalid: %u, %u\n",
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ListBounds.MinLength, ListBounds.MaxLength);
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return;
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}
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/* Set the new bounds globally */
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SepAdtMinListLength = ListBounds.MinLength;
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SepAdtMaxListLength = ListBounds.MaxLength;
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}
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static
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NTSTATUS
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SepRmSetAuditEvent(
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PSEP_RM_API_MESSAGE Message)
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||||
{
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ULONG i;
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PAGED_CODE();
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/* First re-initialize the bounds from the registry */
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SepAdtInitializeBounds();
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||||
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||||
/* Make sure we have the right message and clear */
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||||
ASSERT(Message->ApiNumber == RmAuditSetCommand);
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||||
Message->ApiNumber = 0;
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||||
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||||
/* Store the enable flag in the global variable */
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||||
SepAdtAuditingEnabled = Message->u.SetAuditEvent.Enabled;
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||||
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||||
/* Loop all audit event types */
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||||
for (i = 0; i < POLICY_AUDIT_EVENT_TYPE_COUNT; i++)
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||||
{
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||||
/* Save the provided flags in the global array */
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||||
SeAuditingState[i] = (UCHAR)Message->u.SetAuditEvent.Flags[i];
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||||
}
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||||
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||||
return STATUS_SUCCESS;
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||||
}
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||||
|
||||
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||||
static
|
||||
NTSTATUS
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||||
SepRmCreateLogonSession(
|
||||
PLUID LogonLuid)
|
||||
{
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||||
PSEP_LOGON_SESSION_REFERENCES CurrentSession, NewSession;
|
||||
NTSTATUS Status;
|
||||
PAGED_CODE();
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||||
DPRINT1("SepRmCreateLogonSession(<0x%lx,0x%lx>)\n",
|
||||
LogonLuid->HighPart, LogonLuid->LowPart);
|
||||
|
||||
/* Allocate a new session structure */
|
||||
NewSession = ExAllocatePoolWithTag(PagedPool,
|
||||
sizeof(SEP_LOGON_SESSION_REFERENCES),
|
||||
SEP_LOGON_SESSION_TAG);
|
||||
if (NewSession == NULL)
|
||||
{
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
|
||||
/* Initialize it */
|
||||
NewSession->LogonId = *LogonLuid;
|
||||
NewSession->ReferenceCount = 0;
|
||||
NewSession->Flags = 0;
|
||||
NewSession->pDeviceMap = NULL;
|
||||
InitializeListHead(&NewSession->TokenList);
|
||||
|
||||
/* Acquire the database lock */
|
||||
KeAcquireGuardedMutex(&SepRmDbLock);
|
||||
|
||||
/* Loop all existing sessions */
|
||||
for (CurrentSession = SepLogonSessions;
|
||||
CurrentSession != NULL;
|
||||
CurrentSession = CurrentSession->Next)
|
||||
{
|
||||
/* Check if the LUID matches the new one */
|
||||
if (RtlEqualLuid(&CurrentSession->LogonId, LogonLuid))
|
||||
{
|
||||
Status = STATUS_LOGON_SESSION_EXISTS;
|
||||
goto Leave;
|
||||
}
|
||||
}
|
||||
|
||||
/* Insert the new session */
|
||||
NewSession->Next = SepLogonSessions;
|
||||
SepLogonSessions = NewSession;
|
||||
|
||||
Status = STATUS_SUCCESS;
|
||||
|
||||
Leave:
|
||||
/* Release the database lock */
|
||||
KeReleaseGuardedMutex(&SepRmDbLock);
|
||||
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
ExFreePoolWithTag(NewSession, SEP_LOGON_SESSION_TAG);
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
static
|
||||
NTSTATUS
|
||||
SepRmDeleteLogonSession(
|
||||
PLUID LogonLuid)
|
||||
{
|
||||
UNIMPLEMENTED;
|
||||
NT_ASSERT(FALSE);
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
BOOLEAN
|
||||
NTAPI
|
||||
SepRmCommandServerThreadInit(
|
||||
VOID)
|
||||
{
|
||||
SECURITY_QUALITY_OF_SERVICE SecurityQos;
|
||||
SEP_RM_API_MESSAGE Message;
|
||||
UNICODE_STRING PortName;
|
||||
REMOTE_PORT_VIEW RemotePortView;
|
||||
PORT_VIEW PortView;
|
||||
LARGE_INTEGER SectionSize;
|
||||
HANDLE SectionHandle;
|
||||
HANDLE PortHandle;
|
||||
NTSTATUS Status;
|
||||
BOOLEAN Result;
|
||||
|
||||
SectionHandle = NULL;
|
||||
PortHandle = NULL;
|
||||
|
||||
/* Assume success */
|
||||
Result = TRUE;
|
||||
|
||||
/* Wait until LSASS is ready */
|
||||
Status = ZwWaitForSingleObject(SeLsaInitEvent, FALSE, NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Waiting for LSA Init Event failed 0x%lx\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* We don't need this event anymore */
|
||||
ObCloseHandle(SeLsaInitEvent, KernelMode);
|
||||
|
||||
/* Initialize the connection message */
|
||||
Message.Header.u1.s1.TotalLength = sizeof(Message);
|
||||
Message.Header.u1.s1.DataLength = 0;
|
||||
|
||||
/* Only LSASS can connect, so handle the connection right now */
|
||||
Status = ZwListenPort(SeRmCommandPort, &Message.Header);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Listen to Command Port failed 0x%lx\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* Set the Port View structure length */
|
||||
RemotePortView.Length = sizeof(RemotePortView);
|
||||
|
||||
/* Accept the connection */
|
||||
Status = ZwAcceptConnectPort(&SepRmCommandMessagePort,
|
||||
NULL,
|
||||
&Message.Header,
|
||||
TRUE,
|
||||
NULL,
|
||||
&RemotePortView);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Accept Connect to Command Port failed 0x%lx\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* Complete the connection */
|
||||
Status = ZwCompleteConnectPort(SepRmCommandMessagePort);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Complete Connect to Command Port failed 0x%lx\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* Create a section for messages */
|
||||
SectionSize.QuadPart = PAGE_SIZE;
|
||||
Status = ZwCreateSection(&SectionHandle,
|
||||
SECTION_ALL_ACCESS,
|
||||
NULL,
|
||||
&SectionSize,
|
||||
PAGE_READWRITE,
|
||||
SEC_COMMIT,
|
||||
NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Create Memory Section for LSA port failed: %X\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* Setup the PORT_VIEW structure */
|
||||
PortView.Length = sizeof(PortView);
|
||||
PortView.SectionHandle = SectionHandle;
|
||||
PortView.SectionOffset = 0;
|
||||
PortView.ViewSize = SectionSize.LowPart;
|
||||
PortView.ViewBase = NULL;
|
||||
PortView.ViewRemoteBase = NULL;
|
||||
|
||||
/* Setup security QOS */
|
||||
SecurityQos.Length = sizeof(SecurityQos);
|
||||
SecurityQos.ImpersonationLevel = SecurityImpersonation;
|
||||
SecurityQos.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
|
||||
SecurityQos.EffectiveOnly = TRUE;
|
||||
|
||||
/* Connect to LSASS */
|
||||
RtlInitUnicodeString(&PortName, L"\\SeLsaCommandPort");
|
||||
Status = ZwConnectPort(&PortHandle,
|
||||
&PortName,
|
||||
&SecurityQos,
|
||||
&PortView,
|
||||
NULL,
|
||||
0,
|
||||
0,
|
||||
0);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Security Rm Init: Connect to LSA Port failed 0x%lx\n", Status);
|
||||
goto Cleanup;
|
||||
}
|
||||
|
||||
/* Remember section base and view offset */
|
||||
SepCommandPortViewBase = PortView.ViewBase;
|
||||
SepCommandPortViewRemoteBase = PortView.ViewRemoteBase;
|
||||
SepCommandPortViewBaseOffset = (ULONG_PTR)SepCommandPortViewRemoteBase -
|
||||
(ULONG_PTR)SepCommandPortViewBase;
|
||||
|
||||
DPRINT("SepRmCommandServerThreadInit: done\n");
|
||||
|
||||
Cleanup:
|
||||
/* Check for failure */
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
if (PortHandle != NULL)
|
||||
{
|
||||
ObCloseHandle(PortHandle, KernelMode);
|
||||
}
|
||||
|
||||
Result = FALSE;
|
||||
}
|
||||
|
||||
/* Did we create a section? */
|
||||
if (SectionHandle != NULL)
|
||||
{
|
||||
ObCloseHandle(SectionHandle, KernelMode);
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
VOID
|
||||
NTAPI
|
||||
SepRmCommandServerThread(
|
||||
PVOID StartContext)
|
||||
{
|
||||
SEP_RM_API_MESSAGE Message;
|
||||
PPORT_MESSAGE ReplyMessage;
|
||||
HANDLE DummyPortHandle;
|
||||
NTSTATUS Status;
|
||||
|
||||
/* Initialize the server thread */
|
||||
if (!SepRmCommandServerThreadInit())
|
||||
{
|
||||
DPRINT1("Security: Terminating Rm Command Server Thread\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* No reply yet */
|
||||
ReplyMessage = NULL;
|
||||
|
||||
/* Start looping */
|
||||
while (TRUE)
|
||||
{
|
||||
/* Wait for a message */
|
||||
Status = ZwReplyWaitReceivePort(SepRmCommandMessagePort,
|
||||
NULL,
|
||||
ReplyMessage,
|
||||
&Message.Header);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("Failed to get message: 0x%lx", Status);
|
||||
ReplyMessage = NULL;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Check if this is a connection request */
|
||||
if (Message.Header.u2.s2.Type == LPC_CONNECTION_REQUEST)
|
||||
{
|
||||
/* Reject connection request */
|
||||
ZwAcceptConnectPort(&DummyPortHandle,
|
||||
NULL,
|
||||
&Message.Header,
|
||||
FALSE,
|
||||
NULL,
|
||||
NULL);
|
||||
|
||||
/* Start over */
|
||||
ReplyMessage = NULL;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Check if the port died */
|
||||
if ((Message.Header.u2.s2.Type == LPC_PORT_CLOSED) ||
|
||||
(Message.Header.u2.s2.Type == LPC_CLIENT_DIED))
|
||||
{
|
||||
/* LSASS is dead, so let's quit as well */
|
||||
break;
|
||||
}
|
||||
|
||||
/* Check if this is an actual request */
|
||||
if (Message.Header.u2.s2.Type != LPC_REQUEST)
|
||||
{
|
||||
DPRINT1("SepRmCommandServerThread: unexpected message type: 0x%lx\n",
|
||||
Message.Header.u2.s2.Type);
|
||||
|
||||
/* Restart without replying */
|
||||
ReplyMessage = NULL;
|
||||
continue;
|
||||
}
|
||||
|
||||
ReplyMessage = &Message.Header;
|
||||
|
||||
switch (Message.ApiNumber)
|
||||
{
|
||||
case RmAuditSetCommand:
|
||||
Status = SepRmSetAuditEvent(&Message);
|
||||
break;
|
||||
|
||||
case RmCreateLogonSession:
|
||||
Status = SepRmCreateLogonSession(&Message.u.LogonLuid);
|
||||
break;
|
||||
|
||||
case RmDeleteLogonSession:
|
||||
Status = SepRmDeleteLogonSession(&Message.u.LogonLuid);
|
||||
break;
|
||||
|
||||
default:
|
||||
DPRINT1("SepRmDispatchRequest: invalid API number: 0x%lx\n",
|
||||
Message.ApiNumber);
|
||||
ReplyMessage = NULL;
|
||||
}
|
||||
|
||||
Message.u.ResultStatus = Status;
|
||||
}
|
||||
|
||||
/* Close the port handles */
|
||||
ObCloseHandle(SepRmCommandMessagePort, KernelMode);
|
||||
ObCloseHandle(SeRmCommandPort, KernelMode);
|
||||
}
|
||||
|
||||
Loading…
Reference in a new issue