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357 lines
10 KiB
C
357 lines
10 KiB
C
/*
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* PROJECT: Local Security Authority Server DLL
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: dll/win32/lsasrv/session.c
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* PURPOSE: Logon session management routines
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* COPYRIGHT: Copyright 2013 Eric Kohl
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*/
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#include "lsasrv.h"
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typedef struct _LSAP_LOGON_SESSION
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{
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LIST_ENTRY Entry;
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LUID LogonId;
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ULONG LogonType;
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ULONG Session;
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LARGE_INTEGER LogonTime;
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PSID Sid;
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UNICODE_STRING UserName;
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UNICODE_STRING LogonDomain;
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UNICODE_STRING AuthenticationPackage;
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UNICODE_STRING LogonServer;
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UNICODE_STRING DnsDomainName;
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UNICODE_STRING Upn;
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} LSAP_LOGON_SESSION, *PLSAP_LOGON_SESSION;
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/* GLOBALS *****************************************************************/
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LIST_ENTRY SessionListHead;
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ULONG SessionCount;
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/* FUNCTIONS ***************************************************************/
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VOID
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LsapInitLogonSessions(VOID)
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{
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InitializeListHead(&SessionListHead);
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SessionCount = 0;
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}
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static
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PLSAP_LOGON_SESSION
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LsapGetLogonSession(IN PLUID LogonId)
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{
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PLIST_ENTRY SessionEntry;
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PLSAP_LOGON_SESSION CurrentSession;
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SessionEntry = SessionListHead.Flink;
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while (SessionEntry != &SessionListHead)
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{
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CurrentSession = CONTAINING_RECORD(SessionEntry,
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LSAP_LOGON_SESSION,
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Entry);
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if (RtlEqualLuid(&CurrentSession->LogonId, LogonId))
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return CurrentSession;
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SessionEntry = SessionEntry->Flink;
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}
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return NULL;
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}
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NTSTATUS
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LsapSetLogonSessionData(IN PLUID LogonId)
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{
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PLSAP_LOGON_SESSION Session;
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TRACE("LsapSetLogonSessionData()\n");
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Session = LsapGetLogonSession(LogonId);
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if (Session == NULL)
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return STATUS_NO_SUCH_LOGON_SESSION;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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LsapCreateLogonSession(IN PLUID LogonId)
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{
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PLSAP_LOGON_SESSION Session;
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TRACE("()\n");
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/* Fail, if a session already exists */
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if (LsapGetLogonSession(LogonId) != NULL)
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return STATUS_LOGON_SESSION_COLLISION;
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/* Allocate a new session entry */
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Session = RtlAllocateHeap(RtlGetProcessHeap(),
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HEAP_ZERO_MEMORY,
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sizeof(LSAP_LOGON_SESSION));
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if (Session == NULL)
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return STATUS_INSUFFICIENT_RESOURCES;
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/* Initialize the session entry */
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RtlCopyLuid(&Session->LogonId, LogonId);
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/* Insert the new session into the session list */
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InsertHeadList(&SessionListHead, &Session->Entry);
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SessionCount++;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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LsapDeleteLogonSession(IN PLUID LogonId)
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{
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PLSAP_LOGON_SESSION Session;
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TRACE("()\n");
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/* Fail, if the session does not exist */
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Session = LsapGetLogonSession(LogonId);
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if (Session == NULL)
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return STATUS_NO_SUCH_LOGON_SESSION;
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/* Remove the session entry from the list */
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RemoveEntryList(&Session->Entry);
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SessionCount--;
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/* Free the session data */
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if (Session->Sid != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->Sid);
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if (Session->UserName.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->UserName.Buffer);
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if (Session->LogonDomain.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->LogonDomain.Buffer);
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if (Session->AuthenticationPackage.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->AuthenticationPackage.Buffer);
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if (Session->LogonServer.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->LogonServer.Buffer);
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if (Session->DnsDomainName.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->DnsDomainName.Buffer);
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if (Session->Upn.Buffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session->Upn.Buffer);
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/* Free the session entry */
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RtlFreeHeap(RtlGetProcessHeap(), 0, Session);
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return STATUS_SUCCESS;
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}
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NTSTATUS
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LsapEnumLogonSessions(IN OUT PLSA_API_MSG RequestMsg)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE ProcessHandle = NULL;
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PLIST_ENTRY SessionEntry;
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PLSAP_LOGON_SESSION CurrentSession;
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PLUID SessionList;
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ULONG i, Length, MemSize;
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PVOID ClientBaseAddress = NULL;
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NTSTATUS Status;
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TRACE("LsapEnumLogonSessions(%p)\n", RequestMsg);
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Length = SessionCount * sizeof(LUID);
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SessionList = RtlAllocateHeap(RtlGetProcessHeap(),
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HEAP_ZERO_MEMORY,
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Length);
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if (SessionList == NULL)
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return STATUS_INSUFFICIENT_RESOURCES;
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i = 0;
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SessionEntry = SessionListHead.Flink;
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while (SessionEntry != &SessionListHead)
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{
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CurrentSession = CONTAINING_RECORD(SessionEntry,
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LSAP_LOGON_SESSION,
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Entry);
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RtlCopyLuid(&SessionList[i],
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&CurrentSession->LogonId);
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SessionEntry = SessionEntry->Flink;
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i++;
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}
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InitializeObjectAttributes(&ObjectAttributes,
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NULL,
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0,
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NULL,
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NULL);
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Status = NtOpenProcess(&ProcessHandle,
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PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_VM_OPERATION,
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&ObjectAttributes,
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&RequestMsg->h.ClientId);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtOpenProcess() failed (Status %lx)\n", Status);
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goto done;
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}
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TRACE("Length: %lu\n", Length);
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MemSize = Length;
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Status = NtAllocateVirtualMemory(ProcessHandle,
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&ClientBaseAddress,
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0,
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&MemSize,
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MEM_COMMIT,
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PAGE_READWRITE);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtAllocateVirtualMemory() failed (Status %lx)\n", Status);
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goto done;
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}
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TRACE("MemSize: %lu\n", MemSize);
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TRACE("ClientBaseAddress: %p\n", ClientBaseAddress);
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Status = NtWriteVirtualMemory(ProcessHandle,
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ClientBaseAddress,
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SessionList,
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Length,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtWriteVirtualMemory() failed (Status %lx)\n", Status);
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goto done;
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}
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RequestMsg->EnumLogonSessions.Reply.LogonSessionCount = SessionCount;
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RequestMsg->EnumLogonSessions.Reply.LogonSessionBuffer = ClientBaseAddress;
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done:
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if (ProcessHandle != NULL)
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NtClose(ProcessHandle);
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if (SessionList != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, SessionList);
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return Status;
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}
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NTSTATUS
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LsapGetLogonSessionData(IN OUT PLSA_API_MSG RequestMsg)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE ProcessHandle = NULL;
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PLSAP_LOGON_SESSION Session;
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PSECURITY_LOGON_SESSION_DATA LocalSessionData;
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PVOID ClientBaseAddress = NULL;
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ULONG Length, MemSize;
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LPWSTR Ptr;
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NTSTATUS Status;
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TRACE("LsapGetLogonSessionData(%p)\n", RequestMsg);
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TRACE("LogonId: %lx\n", RequestMsg->GetLogonSessionData.Request.LogonId.LowPart);
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Session = LsapGetLogonSession(&RequestMsg->GetLogonSessionData.Request.LogonId);
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if (Session == NULL)
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return STATUS_NO_SUCH_LOGON_SESSION;
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Length = sizeof(SECURITY_LOGON_SESSION_DATA);
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/*
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Session->UserName.MaximumLength +
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Session->LogonDomain.MaximumLength +
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Session->AuthenticationPackage.MaximumLength +
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Session->LogonServer.MaximumLength +
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Session->DnsDomainName.MaximumLength +
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Session->Upn.MaximumLength;
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if (Session->Sid != NULL)
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RtlLengthSid(Session->Sid);
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*/
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TRACE("Length: %lu\n", Length);
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LocalSessionData = RtlAllocateHeap(RtlGetProcessHeap(),
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HEAP_ZERO_MEMORY,
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Length);
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if (LocalSessionData == NULL)
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return STATUS_INSUFFICIENT_RESOURCES;
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Ptr = (LPWSTR)((ULONG_PTR)LocalSessionData + sizeof(SECURITY_LOGON_SESSION_DATA));
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TRACE("LocalSessionData: %p Ptr: %p\n", LocalSessionData, Ptr);
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LocalSessionData->Size = sizeof(SECURITY_LOGON_SESSION_DATA);
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RtlCopyLuid(&LocalSessionData->LogonId,
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&RequestMsg->GetLogonSessionData.Request.LogonId);
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InitializeObjectAttributes(&ObjectAttributes,
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NULL,
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0,
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NULL,
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NULL);
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Status = NtOpenProcess(&ProcessHandle,
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PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_VM_OPERATION,
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&ObjectAttributes,
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&RequestMsg->h.ClientId);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtOpenProcess() failed (Status %lx)\n", Status);
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goto done;
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}
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MemSize = Length;
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Status = NtAllocateVirtualMemory(ProcessHandle,
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&ClientBaseAddress,
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0,
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&MemSize,
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MEM_COMMIT,
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PAGE_READWRITE);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtAllocateVirtualMemory() failed (Status %lx)\n", Status);
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goto done;
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}
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TRACE("MemSize: %lu\n", MemSize);
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TRACE("ClientBaseAddress: %p\n", ClientBaseAddress);
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Status = NtWriteVirtualMemory(ProcessHandle,
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ClientBaseAddress,
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LocalSessionData,
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Length,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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TRACE("NtWriteVirtualMemory() failed (Status %lx)\n", Status);
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goto done;
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}
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RequestMsg->GetLogonSessionData.Reply.SessionDataBuffer = ClientBaseAddress;
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done:
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if (ProcessHandle != NULL)
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NtClose(ProcessHandle);
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if (LocalSessionData != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, LocalSessionData);
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return Status;
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}
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/* EOF */
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