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200 lines
4.2 KiB
200 lines
4.2 KiB
/*++
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Copyright (c) 1993 Microsoft Corporation
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Module Name:
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stub.c
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Abstract:
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NT LM Security Support Provider client stubs.
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Author:
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Cliff Van Dyke (CliffV) 29-Jun-1993
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Environment: User Mode
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Revision History:
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--*/
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#ifdef BLDR_KERNEL_RUNTIME
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#include <bootdefs.h>
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#endif
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#include <stddef.h>
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#include <security.h>
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#include <ntlmsspi.h>
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#include <crypt.h>
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#include <cred.h>
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#include <debug.h>
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PSSP_CREDENTIAL
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SspCredentialAllocateCredential(
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IN ULONG CredentialUseFlags
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)
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{
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PSSP_CREDENTIAL Credential;
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//
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// Allocate a credential block and initialize it.
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//
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Credential = (PSSP_CREDENTIAL) SspAlloc (sizeof(SSP_CREDENTIAL));
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if ( Credential == NULL ) {
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return (NULL);
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}
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_fmemset(Credential, 0, sizeof(SSP_CREDENTIAL));
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Credential->References = 1;
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Credential->CredentialUseFlags = CredentialUseFlags;
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Credential->Username = NULL;
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Credential->Domain = NULL;
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SspPrint(( SSP_API_MORE, "Added Credential 0x%lx\n", Credential ));
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return (Credential);
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}
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PSSP_CREDENTIAL
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SspCredentialReferenceCredential(
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IN PCredHandle CredentialHandle,
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IN BOOLEAN RemoveCredential
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)
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/*++
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Routine Description:
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This routine checks to see if the Credential is from a currently
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active client, and references the Credential if it is valid.
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The caller may optionally request that the client's Credential be
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removed from the list of valid Credentials - preventing future
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requests from finding this Credential.
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For a client's Credential to be valid, the Credential value
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must be on our list of active Credentials.
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Arguments:
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CredentialHandle - Points to the CredentialHandle of the Credential
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to be referenced.
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RemoveCredential - This boolean value indicates whether the caller
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wants the logon process's Credential to be removed from the list
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of Credentials. TRUE indicates the Credential is to be removed.
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FALSE indicates the Credential is not to be removed.
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Return Value:
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NULL - the Credential was not found.
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Otherwise - returns a pointer to the referenced credential.
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--*/
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{
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PSSP_CREDENTIAL Credential;
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//
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// Sanity check
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//
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if ( CredentialHandle->dwLower != 0 ) {
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return NULL;
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}
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Credential = (SSP_CREDENTIAL *) CredentialHandle->dwUpper;
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Credential->References++;
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return Credential;
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}
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void
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SspCredentialDereferenceCredential(
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PSSP_CREDENTIAL Credential
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)
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/*++
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Routine Description:
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This routine decrements the specified Credential's reference count.
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If the reference count drops to zero, then the Credential is deleted
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Arguments:
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Credential - Points to the Credential to be dereferenced.
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Return Value:
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None.
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--*/
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{
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ASSERT(Credential != NULL);
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//
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// Decrement the reference count
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//
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ASSERT( Credential->References >= 1 );
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Credential->References--;
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//
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// If the count dropped to zero, then run-down the Credential
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//
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if ( Credential->References == 0) {
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SspPrint(( SSP_API_MORE, "Deleting Credential 0x%lx\n",
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Credential ));
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#ifdef BL_USE_LM_PASSWORD
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if (Credential->LmPassword != NULL) {
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SspFree(Credential->LmPassword);
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}
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#endif
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if (Credential->NtPassword != NULL) {
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_fmemset(Credential->NtPassword, 0, sizeof(NT_OWF_PASSWORD));
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SspFree(Credential->NtPassword);
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}
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if (Credential->Username != NULL) {
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_fmemset(Credential->Username, 0, _fstrlen(Credential->Username));
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SspFree(Credential->Username);
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}
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if (Credential->Domain != NULL) {
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_fmemset(Credential->Domain, 0, _fstrlen(Credential->Domain));
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SspFree(Credential->Domain);
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}
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if (Credential->Workstation != NULL) {
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_fmemset(Credential->Workstation, 0, _fstrlen(Credential->Workstation));
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SspFree(Credential->Workstation);
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}
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_fmemset(Credential, 0, sizeof(SSP_CREDENTIAL));
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SspFree( Credential );
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}
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return;
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}
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