windows-nt/Source/XPSP1/NT/base/boot/bootssp/context.h

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
context.h
Abstract:
SSP Context.
Author:
Cliff Van Dyke (CliffV) 17-Sep-1993
Revision History:
--*/
#ifndef _NTLMSSP_CONTEXT_INCLUDED_
#define _NTLMSSP_CONTEXT_INCLUDED_
#include <rc4.h>
typedef struct _SSP_CONTEXT {
//
// Global list of all Contexts
// (Serialized by SspContextCritSect)
//
LIST_ENTRY Next;
//
// Timeout the context after awhile.
//
DWORD StartTime;
DWORD Interval;
//
// Used to prevent this Context from being deleted prematurely.
//
WORD References;
//
// Maintain the Negotiated protocol
//
ULONG NegotiateFlags;
//
// State of the context
//
enum {
IdleState,
NegotiateSentState, // Outbound context only
ChallengeSentState, // Inbound context only
AuthenticateSentState, // Outbound context only
AuthenticatedState // Inbound context only
} State;
//
// The challenge passed to the client.
// Only valid when in ChallengeSentState.
//
UCHAR Challenge[MSV1_0_CHALLENGE_LENGTH];
PSSP_CREDENTIAL Credential;
ULONG Nonce;
struct RC4_KEYSTRUCT SEC_FAR * Rc4Key;
} SSP_CONTEXT, *PSSP_CONTEXT;
PSSP_CONTEXT
SspContextReferenceContext(
IN PCtxtHandle ContextHandle,
IN BOOLEAN RemoveContext
);
void
SspContextDereferenceContext(
PSSP_CONTEXT Context
);
PSSP_CONTEXT
SspContextAllocateContext(
);
TimeStamp
SspContextGetTimeStamp(
IN PSSP_CONTEXT Context,
IN BOOLEAN GetExpirationTime
);
#endif // ifndef _NTLMSSP_CONTEXT_INCLUDED_