Source code of Windows XP (NT5)
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//+-----------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (c) Microsoft Corporation 2000
//
// File: ctxt.h
//
// Contents: declarations, constants for context manager
//
//
// History: KDamour 15Mar00 Created
//
//------------------------------------------------------------------------
#ifndef NTDIGEST_CTXT_H
#define NTDIGEST_CTXT_H
// Utilized for Str to int conversion
#define HEXBASE 16
#define TENBASE 10
// number of bytes to hold ChallengeResponse directives and symbols (actual count is 107) round up for padding
// 14 for charset
#define CB_CHALRESP 364
#define CB_CHAL 400
#define RSPAUTH_STR "rspauth=%Z"
// Hash locations for pre-calculated DS hashes
#define PRECALC_NONE 0
#define PRECALC_ACCOUNTNAME 1
#define PRECALC_UPN 2
#define PRECALC_NETBIOS 3
// Number of secbuffers for each type HTTP and SASL
#define ASC_HTTP_NUM_INPUT_BUFFERS 5
#define ASC_SASL_NUM_INPUT_BUFFERS 1
#define ASC_HTTP_NUM_OUTPUT_BUFFERS 1
#define ASC_SASL_NUM_OUTPUT_BUFFERS 1
// Initializes the context manager package
NTSTATUS CtxtHandlerInit(VOID);
// Add a Context into the Cntext List
NTSTATUS CtxtHandlerInsertCred(IN PDIGEST_CONTEXT pDigestCtxt);
// Initialize all the struct elements in a Context from the Credential
NTSTATUS NTAPI ContextInit(IN OUT PDIGEST_CONTEXT pContext, IN PDIGEST_CREDENTIAL pCredential);
// Release memory utilized by the Context
NTSTATUS NTAPI ContextFree(IN PDIGEST_CONTEXT pContext);
// Find the security context handle by the opaque reference
NTSTATUS NTAPI CtxtHandlerOpaqueToPtr(
IN PSTRING pstrOpaque,
OUT PDIGEST_CONTEXT *ppContext);
// Find the security context by the security context handle
NTSTATUS NTAPI CtxtHandlerHandleToContext(IN ULONG_PTR ContextHandle, IN BOOLEAN RemoveContext,
OUT PDIGEST_CONTEXT *ppContext);
// Releases the Context by decreasing reference counter
NTSTATUS CtxtHandlerRelease(PDIGEST_CONTEXT pContext);
// Check to see if COntext is within valid lifetime
BOOL CtxtHandlerTimeHasElapsed(PDIGEST_CONTEXT pContext);
// From ctxtapi.cxx
// Creates the Output SecBuffer for the Challenge
NTSTATUS NTAPI ContextCreateChal(IN PDIGEST_CONTEXT pContext, IN PSTRING pstrRealm, OUT PSecBuffer OutBuffer);
// Creates the Output SecBuffer for the Challenge Response
NTSTATUS NTAPI DigestCreateChalResp(IN PDIGEST_PARAMETER pDigest,
IN PUSER_CREDENTIALS pUserCreds,
OUT PSecBuffer OutBuffer);
// Check SecurityToken for corredct structure format
BOOL ContextIsTokenOK(IN PSecBuffer pTempToken, IN ULONG ulMaxSize);
// Called for server incoming messages - verify Digest and generate sessionkey if necessary
NTSTATUS NTAPI DigestProcessParameters(IN OUT PDIGEST_CONTEXT pContext,
IN PDIGEST_PARAMETER pDigest,
OUT PSecBuffer pFirstOutputToken,
OUT PNTSTATUS pAuditLogStatus);
// Called for client outbound messages - generate the response hash
NTSTATUS NTAPI DigestGenerateParameters(IN OUT PDIGEST_CONTEXT pContext,
IN PDIGEST_PARAMETER pDigest, OUT PSecBuffer pFirstOutputToken);
// LSA calls this function in the Generic Passthrough call
NTSTATUS NTAPI DigestPackagePassthrough(IN USHORT cbMessageRequest, IN BYTE *pMessageRequest,
IN OUT ULONG *pulMessageResponse, OUT PBYTE *ppMessageResponse);
// Lookup passwords and perform digest cal auth (runs on the DC)
NTSTATUS NTAPI DigestResponseBru(IN BYTE *pDigestParamEncoded,
IN OUT ULONG *pculResponse, OUT PBYTE *ppResponse);
// Formatted printout of Digest Parameters
NTSTATUS DigestPrint(PDIGEST_PARAMETER pDigest);
// Formatted printout of Context
NTSTATUS ContextPrint(IN PDIGEST_CONTEXT pDigest);
// Create a logonSession for the Authenticated LogonToken in the SecurityContext
NTSTATUS CtxtCreateLogSess(IN PDIGEST_CONTEXT pDigest);
// Extract the username & domain from the Digest structure directives
NTSTATUS UserCredentialsExtract(PDIGEST_PARAMETER pDigest,
PUSER_CREDENTIALS pUserCreds);
// Release memory allocated into UserCredentials
NTSTATUS UserCredentialsFree(PUSER_CREDENTIALS pUserCreds);
NTSTATUS DigestSASLResponseAuth(
IN PDIGEST_PARAMETER pDigest,
OUT PSecBuffer pOutputToken);
NTSTATUS DigestCalculateResponseAuth(
IN PDIGEST_PARAMETER pDigest,
OUT PSTRING pstrHash);
NTSTATUS DigestDecodeUserAccount(
IN PDIGEST_PARAMETER pDigest,
OUT PUNICODE_STRING pustrDC);
#endif // DNTDIGEST_CTXT_H