296 lines
8.7 KiB
C
296 lines
8.7 KiB
C
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/*
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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sda.h
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Abstract:
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This module contains session data area and related data structures.
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Author:
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Jameel Hyder (microsoft!jameelh)
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Revision History:
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25 Apr 1992 Initial Version
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Notes: Tab stop: 4
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--*/
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#ifndef _SDA_
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#define _SDA_
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// sda_Flags values
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#define SDA_USER_NOT_LOGGEDIN 0x0000 //
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#define SDA_USER_LOGIN_PARTIAL 0x0001 // Encrypted logon is half-way done
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#define SDA_USER_LOGGEDIN 0x0002
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#define SDA_LOGIN_MASK 0x0003
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#define SDA_REQUEST_IN_PROCESS 0x0004 // A request is being processed
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#define SDA_REPLY_IN_PROCESS 0x0008 // A reply has been posted
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#define SDA_NAMEXSPACE_IN_USE 0x0010 // NameXSpace is in use by reply processing
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#define SDA_DEREF_VOLUME 0x0020 // Dereference volume before reply
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#define SDA_DEREF_OFORK 0x0040 // Dereference open-fork before reply
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#define SDA_LOGIN_FAILED 0x0080 // Funky stuff for AFP 2.1 Chooser
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#define SDA_CLIENT_CLOSE 0x0100 // Set if the close if hapenning from the client side
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#define SDA_QUEUE_IF_DPC 0x0200 // Copied from the dispatch table (see afpapi.c)
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#define SDA_SESSION_CLOSED 0x0400 // If set, do not close session in deref.
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#define SDA_SESSION_CLOSE_COMP 0x0800 // If set, close completion called for this session
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#define SDA_SESSION_OVER_TCP 0x1000 // this is an AFP/TCP session
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#define SDA_SESSION_NOTIFY_SENT 0x2000 // Server Notification sent to this sda
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#define SDA_CLOSING 0x8000 // Session is marked to die
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// sda_ClientType values
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#define SDA_CLIENT_GUEST NO_USER_AUTHENT
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#define SDA_CLIENT_CLEARTEXT CLEAR_TEXT_AUTHENT
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#define SDA_CLIENT_MSUAM_V1 CUSTOM_UAM_V1
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#define SDA_CLIENT_MSUAM_V2 CUSTOM_UAM_V2
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#define SDA_CLIENT_RANDNUM RANDNUM_EXCHANGE
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#define SDA_CLIENT_TWOWAY TWOWAY_EXCHANGE
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#define SDA_CLIENT_ADMIN AFP_NUM_UAMS
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#define MAX_REQ_ENTRIES 7
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#define MAX_REQ_ENTRIES_PLUS_1 8 // used to allocate space 1 DWORD more
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// than required. The first entry is
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// used to store pointer to VolDesc
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// or ConnDesc. The extra DWORD is used
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// to accomodate 64-bit pointer if we
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// have one
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#define MAX_VAR_ENTRIES 3
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#define SESSION_CHECK_TIME 60 // In seconds
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#define SESSION_WARN_TIME SESSION_CHECK_TIME * 10
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// SDA_SIZE is the total size allocated to the SDA pointer
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// This includes sizeof(SDA) plus additional buffer allocated for
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// copying strings into. This extra space is allocated after the
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// first sizeof(SDA) bytes. The size is purely a ball-park figure
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// The original design does not mention why the total space was 384
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// Currently we are doubling the space to accomodate 64-bit stuff
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#ifdef _WIN64
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#define SDA_SIZE (((768 - POOL_OVERHEAD)+7) & 0xfffffff8)
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#else
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#define SDA_SIZE (((450 - POOL_OVERHEAD)+7) & 0xfffffff8)
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#endif
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// Linked list of deferred request packets. If the session is already
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// processing a request, then subsequent requests are queued. These
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// are always handled in a FIFO order.
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typedef struct _DeferredRequestQueue
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{
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LIST_ENTRY drq_Link;
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PREQUEST drq_pRequest;
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} DFRDREQQ, *PDFRDREQQ;
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/*
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* This is the per-session data area. This is allocated whenever a listen is
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* posted. At that point it is in the outstanding session list. When the listen
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* is completed, it moves to the active session list.
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*/
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#if DBG
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#define SDA_SIGNATURE *(DWORD *)"SDA"
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#define VALID_SDA(pSda) (((pSda) != NULL) && \
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((pSda)->Signature == SDA_SIGNATURE))
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#else
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#define VALID_SDA(pSda) ((pSda) != NULL)
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#endif
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typedef struct _SessDataArea
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{
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#if DBG
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DWORD Signature;
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#endif
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struct _SessDataArea * sda_Next; // link to next session in session list
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AFP_SPIN_LOCK sda_Lock; // Lock for manipulating certain SDA
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// fields
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DWORD sda_Flags; // Bit mask of the SDA states
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LONG sda_RefCount; // Count of references to this SDA
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PASP_XPORT_ENTRIES sda_XportTable; // pointer to ASP's or DSI's entry points
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DWORD sda_MaxWriteSize; // 64000 for TCP/IP, 4624 for Appletalk
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PVOID sda_SessHandle; // Asp Session handle
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PREQUEST sda_Request; // Current request
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HANDLE sda_UserToken; // Logon token for this user.
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PSID sda_UserSid; // SID representing owner
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PSID sda_GroupSid; // SID representing primary group
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PTOKEN_GROUPS sda_pGroups; // List of groups this user is member of
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#ifdef INHERIT_DIRECTORY_PERMS
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DWORD sda_UID; // User Id corres. to sda_UserSid
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DWORD sda_GID; // Group Id corres. to sda_GroupSid
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#else
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PISECURITY_DESCRIPTOR sda_pSecDesc; // Security descriptor used by directory
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// Creation API
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DWORD sda_Dummy; // For alignment
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#endif
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PANSI_STRING sda_Message; // The actual message in macintosh ansi
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// The above field is used only for
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// client specific message. Broadcast
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// messages are stored in a global area
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UNICODE_STRING sda_WSName; // Workstation name of logged in user
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UNICODE_STRING sda_UserName; // User name
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UNICODE_STRING sda_DomainName; // DomainName for Login/ChgPwd
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#ifdef PROFILING
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TIME sda_ApiStartTime; // Time stamp when Api req. was recvd.
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TIME sda_QueueTime; // Time spent waiting for worker thread
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#endif
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DWORD sda_SessionId; // Session Id for use by admin APIs
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AFPTIME sda_TimeLoggedOn; // Time when session established
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// in macintosh time
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DWORD sda_tTillKickOff; // # of seconds before this session will
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// be kicked off
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struct _ConnDesc * sda_pConnDesc; // List of connections by this session
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struct _OpenForkSession sda_OpenForkSess;
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// List of open files by this session
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LONG sda_cOpenVolumes; // Number of volumes mounted (admin api)
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LONG sda_cOpenForks; // Number of forks opened (admin api)
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DWORD sda_MaxOForkRefNum; // High-water mark of the fork-ref num assigned
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BYTE sda_AfpFunc; // AFP API in execution for FSP
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BYTE sda_AfpSubFunc; // Sub function code used by some APIs
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BYTE sda_ClientVersion; // AFP Version of the client s/w
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// AFP_VER_20
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// AFP_VER_21
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BYTE sda_ClientType; // One of SDA_CLIENT_XXXX
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BYTE sda_PathType; // For all path based calls
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USHORT sda_SizeNameXSpace; // Constant, initialized once
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USHORT sda_ReplySize; // Size of the reply buffer
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#define sda_ReadStatus sda_SecUtilResult
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NTSTATUS sda_SecUtilResult; // Result of scurity utitility call
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PSID sda_SecUtilSid; // Name to Sid translation. Should be
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// freed if non-null.
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// The incoming packet is copied here. The parameters from the RequestBuf
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// are un-marshalled into this. Each API structures this differently. Make
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// sure sda_Name and sda_ReqBlock are together and next to each other AND
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// in this order. The code in afpapi.c depends on this while clearing this.
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// The extra DWORD is used in cases where the first entry is reused to
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// stored pointer values. On 64-bit architecture we require 2 DWORD at
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// the start of the ReqBlock.
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DWORD sda_ReqBlock[MAX_REQ_ENTRIES_PLUS_1];
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ANSI_STRING sda_Name[MAX_VAR_ENTRIES];
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#define sda_Name1 sda_Name[0]
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#define sda_Name2 sda_Name[1]
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#define sda_Name3 sda_Name[2]
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#define sda_IOBuf sda_ReplyBuf
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#define sda_IOSize sda_ReplySize
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PBYTE sda_ReplyBuf; // Reply Buffer (variable size)
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AFPAPIWORKER sda_WorkerRoutine; // Api Worker
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WORK_ITEM sda_WorkItem; // For queueing up to worker threads
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PBYTE sda_Challenge; // Challenge from MSV1_0
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LIST_ENTRY sda_DeferredQueue; // Queue of deferred requests
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PBYTE sda_NameBuf; // Space is allocated for variable
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// part of request buffer here.
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PBYTE sda_NameXSpace;
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} SDA, *PSDA;
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GLOBAL AFP_SPIN_LOCK AfpSdaLock EQU {0};// Lock for session list
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GLOBAL PSDA AfpSessionList EQU NULL;
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// Linked-List of sessions
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// These values are subject to tuning.
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GLOBAL LONG AfpNumSessions EQU 0;
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GLOBAL UNICODE_STRING AfpDefaultWksta EQU {0, 0, NULL};
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extern
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NTSTATUS
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AfpSdaInit(
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VOID
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);
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extern
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VOID
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AfpSdaDeInit(
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VOID
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);
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extern
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PSDA FASTCALL
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AfpSdaCreateNewSession(
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IN PVOID SessionHandle,
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IN BOOLEAN fOverTcp
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);
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extern
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VOID FASTCALL
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afpQueueDeferredRequest(
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IN PSDA pSda,
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IN PREQUEST pRequest
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);
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extern
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PSDA FASTCALL
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AfpSdaReferenceSessionById(
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IN DWORD SessId
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);
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extern
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PSDA FASTCALL
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AfpSdaReferenceSessionByPointer(
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IN PSDA pSda
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);
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extern
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VOID FASTCALL
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AfpSdaDereferenceSession(
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IN PSDA pSda
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);
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extern
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AFPSTATUS FASTCALL
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AfpSdaCloseSession(
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IN PSDA pSda
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);
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extern
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AFPSTATUS
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AfpAdmWSessionClose(
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IN OUT PVOID Inbuf OPTIONAL,
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IN LONG OutBufLen OPTIONAL,
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OUT PVOID Outbuf OPTIONAL
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);
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extern
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AFPSTATUS FASTCALL
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AfpSdaCheckSession(
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IN PVOID pContext
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);
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extern
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VOID FASTCALL
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AfpKillSessionsOverProtocol(
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IN BOOLEAN fAppletalkSessions
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);
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extern
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VOID FASTCALL
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afpUpdateDiskQuotaInfo(
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IN struct _ConnDesc * pConnDesc
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);
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#ifdef _SDA_LOCALS
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LOCAL DWORD afpNextSessionId = 1;
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LOCAL AFPSTATUS FASTCALL
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afpCloseSessionAndFreeSda(
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IN PSDA pSda
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);
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#endif // _SDA_LOCALS
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#endif // _SDA_
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