LSA_AP_LOGON_USER_EX2 callback function (ntsecpkg.h)
Used to authenticate a user logon attempt on the user's initial logon. A new logon session is established for the user, and validation information for the user is returned.
Syntax
LSA_AP_LOGON_USER_EX2 LsaApLogonUserEx2;
NTSTATUS LsaApLogonUserEx2(
[in] PLSA_CLIENT_REQUEST ClientRequest,
[in] SECURITY_LOGON_TYPE LogonType,
[in] PVOID ProtocolSubmitBuffer,
[in] PVOID ClientBufferBase,
[in] ULONG SubmitBufferSize,
[out] PVOID *ProfileBuffer,
[out] PULONG ProfileBufferSize,
[out] PLUID LogonId,
[out] PNTSTATUS SubStatus,
[out] PLSA_TOKEN_INFORMATION_TYPE TokenInformationType,
[out] PVOID *TokenInformation,
[out] PUNICODE_STRING *AccountName,
[out] PUNICODE_STRING *AuthenticatingAuthority,
[out] PUNICODE_STRING *MachineName,
[out] PSECPKG_PRIMARY_CRED PrimaryCredentials,
[out] PSECPKG_SUPPLEMENTAL_CRED_ARRAY *SupplementalCredentials
)
{...}
Parameters
[in] ClientRequest
Pointer to a LSA_CLIENT_REQUEST opaque buffer representing the client's request.
[in] LogonType
SECURITY_LOGON_TYPE value that identifies the type of logon.
[in] ProtocolSubmitBuffer
Buffer that supplies the authentication information specific to the authentication package.
[in] ClientBufferBase
Buffer that provides the address within the client process at which the authentication information was resident. This might be necessary to fix any pointers within the authentication information buffer.
[in] SubmitBufferSize
A ULONG value that indicates the size, in bytes, of the authentication information buffer.
[out] ProfileBuffer
Pointer that receives the address of the profile buffer in the client process. The authentication package is responsible for allocating ProfileBuffer within the client process by calling the AllocateClientBuffer function. However, if the LSA subsequently encounters an error which prevents a successful logon, then the LSA will take care of freeing this buffer.
The contents of this buffer are determined by the authentication package. The LSA does not alter this buffer; it simply returns the value to the LsaLogonUser function.
[out] ProfileBufferSize
Pointer to a ULONG that receives the size of the ProfileBuffer buffer.
[out] LogonId
Pointer to an LUID variable that receives the new logon ID that uniquely identifies this logon session. The authentication package is responsible for allocating this LUID and creating the LSA logon session for this logon.
[out] SubStatus
Pointer to an NTSTATUS that receives the reason for failures due to account restrictions. The values returned in SubStatus are determined by the authentication package.
The following table lists the SubStatus values for the MSV1_0 and Kerberos authentication packages.
More information about NTSTATUS codes can be found in the Subauth.h header file shipped with the Platform SDK.
The LsaNtStatusToWinError function converts an NTSTATUS code to a Windows error code.
[out] TokenInformationType
Pointer that receives the address of an LSA_TOKEN_INFORMATION_TYPE value that indicates the type of information returned for inclusion in the token to be created. The information is returned by means of the TokenInformation parameter.
[out] TokenInformation
Pointer that receives the address of information to be included in the token. The format and content of TokenInformation are indicated by the TokenInformationType parameter. Your authentication package is responsible for allocating the memory used by TokenInformation; however, this memory will be freed by the LSA.
[out] AccountName
Pointer to an LSA_UNICODE_STRING structure that receives the name of the user account. AccountName must always be returned regardless of the success or failure of the call; its string is included in the audit record for an authentication attempt. Your authentication package is responsible for allocating the memory used by AccountName; however, this memory will be freed by the LSA.
[out] AuthenticatingAuthority
Optional. Pointer to an LSA_UNICODE_STRING structure that receives the description of the authenticating authority for the logon. This parameter may be NULL. This string is included in the audit record for an authentication attempt. Your authentication package is responsible for allocating the memory used by AuthenticatingAuthority; however, this memory will be freed by the LSA.
The MSV1_0 authentication package returns the domain name of the domain validating the account. The Kerberos authentication package returns the NetBIOS domain name.
[out] MachineName
Optional. Pointer that receives the address of a UNICODE_STRING structure containing the name of the client's computer. This string may optionally be omitted. This string is included in the audit record for this authentication attempt. Your authentication package is responsible for allocating the memory used by MachineName; however, this memory will be freed by the LSA.
The MSV1_0 authentication package returns the NetBIOS name of the client's workstation.
[out] PrimaryCredentials
Pointer to a SECPKG_PRIMARY_CRED structure that returns primary credentials for handing to other packages.
[out] SupplementalCredentials
Pointer to a SECPKG_SUPPLEMENTAL_CRED_ARRAY array of supplemental credentials for other packages.
Return value
If the function succeeds, it should return STATUS_SUCCESS.
Otherwise, it should return an NTSTATUS error code, which can be one of the following values or one of the LSA Policy Function Return Values.
| Return code | Description |
|---|---|
|
The logon could not be completed because the client's memory quota is insufficient to allocate the return buffer. |
|
No domain controllers are available to service the authentication request. |
|
The logon attempt failed. The reason for failure is not specified; typical reasons include misspelled user names and passwords. |
|
The user account and password were legitimate, but user account restrictions preventing successful logon at this time. For additional information see the SubStatus parameter. |
|
The authentication information provided is not recognized by the authentication package. |
|
LogonType was not valid. |
|
The logon ID selected for this logon session (in the LogonId parameter) already exists. |
|
The SAM database or Netlogon service is required, but is not available. |
|
The client's virtual memory or pagefile quotas are insufficient to allocate the return buffer. |
Calling applications can use the LsaNtStatusToWinError function to convert the NTSTATUS code to a Windows error code.
Remarks
Authentication packages must implement one of the following functions: LsaApLogonUser, LsaApLogonUserEx, or LsaApLogonUserEx2.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | ntsecpkg.h |