Source code of Windows XP (NT5)
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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
sxsp.h
Abstract:
Include file for ntdll-private definitions of Side-By-Side data structures.
Author:
Michael J. Grier (mgrier) October 26, 2000
Environment:
Revision History:
--*/
#if !defined(_NTDLL_SXSP_H_INCLUDED_)
#define _NTDLL_SXSP_H_INCLUDED_
#include <nturtl.h>
#include <sxstypes.h>
//
// Private definitions for activation context management stuff
//
#define NUMBER_OF(x) (sizeof(x) / sizeof((x)[0]))
//
// Codes for the STATUS_SXS_CORRUPTION exception
//
#define SXS_CORRUPTION_CODE_FRAMELIST (1)
#define SXS_CORRUPTION_CODE_FRAMELIST_SUBCODE_BAD_MAGIC (1)
#define SXS_CORRUPTION_CODE_FRAMELIST_SUBCODE_BAD_INUSECOUNT (2)
// SXS_CORRUPTION_CODE_FRAMELIST:
//
// ExceptionInformation[0] == SXS_CORRUPTION_CODE_FRAMELIST
// ExceptionInformation[1] == one of: SXS_CORRUPTION_CODE_FRAMELIST_SUBCODE_BAD_MAGIC, SXS_CORRUPTION_CODE_FRAMELIST_SUBCODE_BAD_INUSECOUNT
// ExceptionInformation[2] == Framelist list head in TEB
// ExceptionInformation[3] == Framelist found to be corrupt
typedef struct _RTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME {
RTL_ACTIVATION_CONTEXT_STACK_FRAME Frame;
ULONG_PTR Cookie;
PVOID ActivationStackBackTrace[8];
} RTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME, *PRTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME;
NTSYSAPI
VOID
NTAPI
RtlpAssemblyStorageMapResolutionDefaultCallback(
IN ULONG CallbackReason,
IN OUT ASSEMBLY_STORAGE_MAP_RESOLUTION_CALLBACK_DATA *CallbackData,
IN PVOID CallbackContext
);
typedef struct _ASSEMBLY_STORAGE_MAP_ENTRY {
ULONG Flags;
UNICODE_STRING DosPath; // stored with a trailing unicode null
HANDLE Handle; // open file handle on the directory to lock it down
} ASSEMBLY_STORAGE_MAP_ENTRY, *PASSEMBLY_STORAGE_MAP_ENTRY;
#define ASSEMBLY_STORAGE_MAP_ASSEMBLY_ARRAY_IS_HEAP_ALLOCATED (0x00000001)
typedef struct _ASSEMBLY_STORAGE_MAP {
ULONG Flags;
ULONG AssemblyCount;
PASSEMBLY_STORAGE_MAP_ENTRY *AssemblyArray;
} ASSEMBLY_STORAGE_MAP, *PASSEMBLY_STORAGE_MAP;
typedef struct _ACTIVATION_CONTEXT {
LONG RefCount;
ULONG Flags;
PVOID ActivationContextData;
PACTIVATION_CONTEXT_NOTIFY_ROUTINE NotificationRoutine;
PVOID NotificationContext;
ULONG SentNotifications[8];
ULONG DisabledNotifications[8];
ASSEMBLY_STORAGE_MAP StorageMap;
PASSEMBLY_STORAGE_MAP_ENTRY InlineStorageMapEntries[32];
} ACTIVATION_CONTEXT;
#define ACTIVATION_CONTEXT_NOTIFICATION_DESTROY_INDEX (ACTIVATION_CONTEXT_NOTIFICATION_DESTROY >> 5)
#define ACTIVATION_CONTEXT_NOTIFICATION_DESTROY_MASK ((ULONG) (1 << (ACTIVATION_CONTEXT_NOTIFICATION_DESTROY & 0x1f)))
#define ACTIVATION_CONTEXT_NOTIFICATION_ZOMBIFY_INDEX (ACTIVATION_CONTEXT_NOTIFICATION_ZOMBIFY >> 5)
#define ACTIVATION_CONTEXT_NOTIFICATION_ZOMBIFY_MASK ((ULONG) (1 << (ACTIVATION_CONTEXT_NOTIFICATION_ZOMBIFY & 0x1f)))
#define ACTIVATION_CONTEXT_NOTIFICATION_USED_INDEX (ACTIVATION_CONTEXT_NOTIFICATION_USED >> 5)
#define ACTIVATION_CONTEXT_NOTIFICATION_USED_MASK ((ULONG) (1 << (ACTIVATION_CONTEXT_NOTIFICATION_USED & 0x1f)))
#define HAS_ACTIVATION_CONTEXT_NOTIFICATION_BEEN_SENT(_pac, _nt) (((_pac)->SentNotifications[ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _INDEX] & ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _MASK) != 0)
#define HAS_ACTIVATION_CONTEXT_NOTIFICATION_BEEN_DISABLED(_pac, _nt) (((_pac)->DisabledNotifications[ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _INDEX] & ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _MASK) != 0)
#define ACTIVATION_CONTEXT_SHOULD_SEND_NOTIFICATION(_pac, _nt) \
((!IS_SPECIAL_ACTCTX(_pac)) && ((_pac)->NotificationRoutine != NULL) && ((!HAS_ACTIVATION_CONTEXT_NOTIFICATION_BEEN_SENT((_pac), _nt)) || (!HAS_ACTIVATION_CONTEXT_NOTIFICATION_BEEN_DISABLED((_pac), _nt))))
#define RECORD_ACTIVATION_CONTEXT_NOTIFICATION_SENT(_pac, _nt) { (_pac)->SentNotifications[ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _INDEX] |= ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _MASK; }
#define RECORD_ACTIVATION_CONTEXT_NOTIFICATION_DISABLED(_pac, _nt) { (_pac)->DisabledNotifications[ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _INDEX] |= ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt ## _MASK; }
#define SEND_ACTIVATION_CONTEXT_NOTIFICATION(_pac, _nt, _data) \
{ \
if (ACTIVATION_CONTEXT_SHOULD_SEND_NOTIFICATION((_pac), _nt)) { \
BOOLEAN __DisableNotification = FALSE; \
(*((_pac)->NotificationRoutine))( \
ACTIVATION_CONTEXT_NOTIFICATION_ ## _nt, \
(_pac), \
(_pac)->ActivationContextData, \
(_pac)->NotificationContext, \
(_data), \
&__DisableNotification); \
RECORD_ACTIVATION_CONTEXT_NOTIFICATION_SENT((_pac), _nt); \
if (__DisableNotification) \
RECORD_ACTIVATION_CONTEXT_NOTIFICATION_DISABLED((_pac), _nt); \
} \
}
//
// Flags for ACTIVATION_CONTEXT
//
#define ACTIVATION_CONTEXT_ZOMBIFIED (0x00000001)
#define ACTIVATION_CONTEXT_NOT_HEAP_ALLOCATED (0x00000002)
//
// Because activating an activation context may require a heap allocation
// which may fail, sometimes (e.g. dispatching an APC) we must still
// go forward with the operation. If there is an opportunity to
// report the failure to activate back to the user, that should be done.
// However, as in activating the necessary context prior to dispatching
// an APC back to the user mode code, if the allocation fails, there is
// no caller to whom to report the error.
//
// To alleviate this problem, failure paths should disable lookups on
// the current stack frame via the RtlSetActivationContextSearchState()
// API. Calling RtlSetActivationContextSearchState(FALSE) marks
// the active frame as having lookups disabled. Attempts to query
// the activation context stack will fail with the
// STATUS_SXS_THREAD_QUERIES_DISABLED.
//
// This means that attempts to load libraries from within APCs where this
// is true will fail, but it's surely better than either silently not
// calling the APC or calling the APC with the wrong activation context
// active.
//
#define ACTIVATION_CONTEXT_STACK_FRAMELIST_MAGIC 'tslF'
typedef struct _ACTIVATION_CONTEXT_STACK_FRAMELIST {
ULONG Magic; // Bit pattern to recognize a framelist
ULONG FramesInUse;
LIST_ENTRY Links;
ULONG Flags;
ULONG NotFramesInUse; // Inverted bits of FramesInUse. Useful for debugging.
RTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME Frames[32];
} ACTIVATION_CONTEXT_STACK_FRAMELIST, *PACTIVATION_CONTEXT_STACK_FRAMELIST;
#define RTLP_VALIDATE_ACTIVATION_CONTEXT_DATA_FLAG_VALIDATE_SIZE (0x00000001)
#define RTLP_VALIDATE_ACTIVATION_CONTEXT_DATA_FLAG_VALIDATE_OFFSETS (0x00000002)
#define RTLP_VALIDATE_ACTIVATION_CONTEXT_DATA_FLAG_VALIDATE_READONLY (0x00000004)
NTSTATUS
RtlpValidateActivationContextData(
IN ULONG Flags OPTIONAL,
IN PCACTIVATION_CONTEXT_DATA Data,
IN SIZE_T BufferSize OPTIONAL
);
NTSTATUS
RtlpFindUnicodeStringInSection(
IN const ACTIVATION_CONTEXT_STRING_SECTION_HEADER UNALIGNED * Header,
IN SIZE_T SectionSize,
IN PCUNICODE_STRING StringToFind,
OUT PACTIVATION_CONTEXT_SECTION_KEYED_DATA DataOut OPTIONAL,
IN OUT PULONG HashAlgorithm,
IN OUT PULONG PseudoKey,
OUT PULONG UserDataSize OPTIONAL,
OUT VOID CONST ** UserData OPTIONAL
);
NTSTATUS
RtlpFindGuidInSection(
IN const ACTIVATION_CONTEXT_GUID_SECTION_HEADER UNALIGNED * Header,
IN const GUID *GuidToFind,
OUT PACTIVATION_CONTEXT_SECTION_KEYED_DATA DataOut OPTIONAL
);
NTSTATUS
RtlpLocateActivationContextSection(
IN PCACTIVATION_CONTEXT_DATA ActivationContextData,
IN const GUID *ExtensionGuid,
IN ULONG Id,
OUT VOID CONST **SectionData,
OUT ULONG *SectionLength
);
NTSTATUS
RtlpCrackActivationContextStringSectionHeader(
IN CONST VOID *SectionBase,
IN SIZE_T SectionLength,
OUT ULONG *FormatVersion OPTIONAL,
OUT ULONG *DataFormatVersion OPTIONAL,
OUT ULONG *SectionFlags OPTIONAL,
OUT ULONG *ElementCount OPTIONAL,
OUT PCACTIVATION_CONTEXT_STRING_SECTION_ENTRY *Elements OPTIONAL,
OUT ULONG *HashAlgorithm OPTIONAL,
OUT VOID CONST **SearchStructure OPTIONAL,
OUT ULONG *UserDataSize OPTIONAL,
OUT VOID CONST **UserData OPTIONAL
);
NTSTATUS
RtlpGetActiveActivationContextApplicationDirectory(
IN SIZE_T InLength,
OUT PVOID OutBuffer,
OUT SIZE_T *OutLength
);
NTSTATUS
RtlpFindNextActivationContextSection(
PFINDFIRSTACTIVATIONCONTEXTSECTION Context,
VOID CONST **SectionData,
ULONG *SectionLength,
PACTIVATION_CONTEXT *ActivationContextOut
);
NTSTATUS
RtlpAllocateActivationContextStackFrame(
ULONG Flags,
PTEB Teb,
PRTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME *Frame
);
VOID
RtlpFreeActivationContextStackFrame(
PRTL_HEAP_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME Frame
);
PSTR
RtlpFormatGuidANSI(
const GUID *Guid,
PSTR Buffer,
SIZE_T BufferLength
);
extern const ACTIVATION_CONTEXT_DATA RtlpTheEmptyActivationContextData;
extern ACTIVATION_CONTEXT RtlpTheEmptyActivationContext;
#define RTLP_DISALLOW_THE_EMPTY_ACTIVATION_CONTEXT(ActCtx) \
{ \
ASSERT((ActCtx) != &RtlpTheEmptyActivationContext); \
if ((ActCtx) == &RtlpTheEmptyActivationContext) { \
DbgPrintEx( \
DPFLTR_SXS_ID, \
DPFLTR_ERROR_LEVEL, \
"SXS: %s() passed the empty activation context\n", __FUNCTION__); \
Status = STATUS_INVALID_PARAMETER; \
goto Exit; \
} \
}
#define RTLP_DISALLOW_THE_EMPTY_ACTIVATION_CONTEXT_DATA(ActCtxData) \
{ \
ASSERT((ActCtxData) != &RtlpTheEmptyActivationContextData); \
if ((ActCtxData) == &RtlpTheEmptyActivationContextData) { \
DbgPrintEx( \
DPFLTR_SXS_ID, \
DPFLTR_ERROR_LEVEL, \
"SXS: %s() passed the empty activation context data\n", __FUNCTION__); \
Status = STATUS_INVALID_PARAMETER; \
goto Exit; \
} \
}
PACTIVATION_CONTEXT
RtlpMapSpecialValuesToBuiltInActivationContexts(
PACTIVATION_CONTEXT ActivationContext
);
NTSTATUS
RtlpThreadPoolGetActiveActivationContext(
PACTIVATION_CONTEXT* ActivationContext
);
NTSTATUS
RtlpInitializeAssemblyStorageMap(
PASSEMBLY_STORAGE_MAP Map,
ULONG EntryCount,
PASSEMBLY_STORAGE_MAP_ENTRY *EntryArray
);
VOID
RtlpUninitializeAssemblyStorageMap(
PASSEMBLY_STORAGE_MAP Map
);
NTSTATUS
RtlpResolveAssemblyStorageMapEntry(
IN OUT PASSEMBLY_STORAGE_MAP Map,
IN PCACTIVATION_CONTEXT_DATA Data,
IN ULONG AssemblyRosterIndex,
IN PASSEMBLY_STORAGE_MAP_RESOLUTION_CALLBACK_ROUTINE Callback,
IN PVOID CallbackContext
);
NTSTATUS
RtlpInsertAssemblyStorageMapEntry(
IN PASSEMBLY_STORAGE_MAP Map,
IN ULONG AssemblyRosterIndex,
IN PCUNICODE_STRING StorageLocation,
IN HANDLE OpenDirectoryHandle
);
NTSTATUS
RtlpProbeAssemblyStorageRootForAssembly(
IN ULONG Flags,
IN PCUNICODE_STRING Root,
IN PCUNICODE_STRING AssemblyDirectory,
OUT PUNICODE_STRING PreAllocatedString,
OUT PUNICODE_STRING DynamicString,
OUT PUNICODE_STRING *StringUsed,
OUT HANDLE OpenDirectoryHandle
);
NTSTATUS
RtlpGetAssemblyStorageMapRootLocation(
IN HANDLE KeyHandle,
IN PCUNICODE_STRING SubKeyName,
OUT PUNICODE_STRING Root
);
#define RTLP_GET_ACTIVATION_CONTEXT_DATA_STORAGE_MAP_AND_ROSTER_HEADER_USE_PROCESS_DEFAULT (0x00000001)
#define RTLP_GET_ACTIVATION_CONTEXT_DATA_STORAGE_MAP_AND_ROSTER_HEADER_USE_SYSTEM_DEFAULT (0x00000002)
NTSTATUS
RtlpGetActivationContextDataRosterHeader(
IN ULONG Flags,
IN PCACTIVATION_CONTEXT_DATA ActivationContextData,
OUT PCACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_HEADER *AssemblyRosterHeader
);
NTSTATUS
RtlpGetActivationContextDataStorageMapAndRosterHeader(
IN ULONG Flags,
IN PPEB Peb,
IN PACTIVATION_CONTEXT ActivationContext,
OUT PCACTIVATION_CONTEXT_DATA *ActivationContextData,
OUT PASSEMBLY_STORAGE_MAP *AssemblyStorageMap,
OUT PCACTIVATION_CONTEXT_DATA_ASSEMBLY_ROSTER_HEADER *AssemblyRosterHeader
);
#define RTLP_GET_ACTIVATION_CONTEXT_DATA_MAP_NULL_TO_EMPTY (0x00000001)
NTSTATUS
RtlpGetActivationContextData(
IN ULONG Flags,
IN PCACTIVATION_CONTEXT ActivationContext,
IN PCFINDFIRSTACTIVATIONCONTEXTSECTION FindContext, OPTIONAL /* This is used for its flags. */
OUT PCACTIVATION_CONTEXT_DATA * ActivationContextData
);
NTSTATUS
RtlpFindActivationContextSection_FillOutReturnedData(
IN ULONG Flags,
OUT PACTIVATION_CONTEXT_SECTION_KEYED_DATA ReturnedData,
IN OUT PACTIVATION_CONTEXT ActivationContext,
IN PCFINDFIRSTACTIVATIONCONTEXTSECTION FindContext,
IN const VOID * UNALIGNED Header,
IN ULONG Header_UserDataOffset,
IN ULONG Header_UserDataSize,
IN ULONG SectionLength
);
#endif // !defined(_NTDLL_SXSP_H_INCLUDED_)