2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS TCP/IP protocol driver
4 * FILE: transport/tcp/event.c
5 * PURPOSE: Transmission Control Protocol -- Events from oskittcp
6 * PROGRAMMERS: Art Yerkes
8 * CSH 01/08-2000 Created
13 int TCPSocketState(void *ClientData
,
15 void *WhichConnection
,
17 PCONNECTION_ENDPOINT Connection
= WhichConnection
;
19 TI_DbgPrint(MID_TRACE
,("Flags: %c%c%c%c\n",
20 NewState
& SEL_CONNECT
? 'C' : 'c',
21 NewState
& SEL_READ
? 'R' : 'r',
22 NewState
& SEL_FIN
? 'F' : 'f',
23 NewState
& SEL_ACCEPT
? 'A' : 'a'));
25 TI_DbgPrint(DEBUG_TCP
,("Called: NewState %x (Conn %x) (Change %x)\n",
27 Connection
? Connection
->State
^ NewState
:
31 TI_DbgPrint(DEBUG_TCP
,("Socket closing.\n"));
32 Connection
= FileFindConnectionByContext( WhichSocket
);
36 TI_DbgPrint(DEBUG_TCP
,("Found socket %x\n", Connection
));
39 TI_DbgPrint(MID_TRACE
,("Connection signalled: %d\n",
40 Connection
->Signalled
));
42 Connection
->SignalState
|= NewState
;
43 if( !Connection
->Signalled
) {
44 Connection
->Signalled
= TRUE
;
45 InsertTailList( &SignalledConnections
, &Connection
->SignalList
);
51 void TCPPacketSendComplete( PVOID Context
,
52 PNDIS_PACKET NdisPacket
,
53 NDIS_STATUS NdisStatus
) {
54 TI_DbgPrint(DEBUG_TCP
,("called %x\n", NdisPacket
));
55 FreeNdisPacket(NdisPacket
);
56 TI_DbgPrint(DEBUG_TCP
,("done\n"));
59 #define STRINGIFY(x) #x
61 int TCPPacketSend(void *ClientData
, OSK_PCHAR data
, OSK_UINT len
) {
62 NDIS_STATUS NdisStatus
;
63 PNEIGHBOR_CACHE_ENTRY NCE
;
64 IP_PACKET Packet
= { 0 };
65 IP_ADDRESS RemoteAddress
, LocalAddress
;
68 if( *data
== 0x45 ) { /* IPv4 */
69 Header
= (PIPv4_HEADER
)data
;
70 LocalAddress
.Type
= IP_ADDRESS_V4
;
71 LocalAddress
.Address
.IPv4Address
= Header
->SrcAddr
;
72 RemoteAddress
.Type
= IP_ADDRESS_V4
;
73 RemoteAddress
.Address
.IPv4Address
= Header
->DstAddr
;
75 TI_DbgPrint(MIN_TRACE
,("Outgoing packet is not IPv4\n"));
76 OskitDumpBuffer( data
, len
);
80 if(!(NCE
= RouteGetRouteToDestination( &RemoteAddress
))) {
81 TI_DbgPrint(MIN_TRACE
,("No route to %s\n", A2S(&RemoteAddress
)));
82 return OSK_EADDRNOTAVAIL
;
85 NdisStatus
= AllocatePacketWithBuffer( &Packet
.NdisPacket
, NULL
,
86 MaxLLHeaderSize
+ len
);
88 if (NdisStatus
!= NDIS_STATUS_SUCCESS
) {
89 TI_DbgPrint(DEBUG_TCP
, ("Error from NDIS: %08x\n", NdisStatus
));
93 GetDataPtr( Packet
.NdisPacket
, MaxLLHeaderSize
,
94 (PCHAR
*)&Packet
.Header
, &Packet
.ContigSize
);
96 RtlCopyMemory( Packet
.Header
, data
, len
);
98 Packet
.HeaderSize
= sizeof(IPv4_HEADER
);
99 Packet
.TotalSize
= len
;
100 Packet
.SrcAddr
= LocalAddress
;
101 Packet
.DstAddr
= RemoteAddress
;
103 if (!NT_SUCCESS(IPSendDatagram( &Packet
, NCE
, TCPPacketSendComplete
, NULL
)))
105 FreeNdisPacket(Packet
.NdisPacket
);
112 int TCPSleep( void *ClientData
, void *token
, int priority
, char *msg
,
114 PSLEEPING_THREAD SleepingThread
;
115 LARGE_INTEGER Timeout
;
117 TI_DbgPrint(DEBUG_TCP
,
118 ("Called TSLEEP: tok = %x, pri = %d, wmesg = %s, tmio = %x\n",
119 token
, priority
, msg
, tmio
));
121 SleepingThread
= exAllocatePool( NonPagedPool
, sizeof( *SleepingThread
) );
122 if( SleepingThread
) {
123 KeInitializeEvent( &SleepingThread
->Event
, NotificationEvent
, FALSE
);
124 SleepingThread
->SleepToken
= token
;
126 /* We're going to sleep and need to release the lock, otherwise
127 it's impossible to re-enter oskittcp to deliver the event that's
129 TcpipRecursiveMutexLeave( &TCPLock
);
131 TcpipAcquireFastMutex( &SleepingThreadsLock
);
132 InsertTailList( &SleepingThreadsList
, &SleepingThread
->Entry
);
133 TcpipReleaseFastMutex( &SleepingThreadsLock
);
135 Timeout
.QuadPart
= Int32x32To64(tmio
, -10000);
137 TI_DbgPrint(DEBUG_TCP
,("Waiting on %x\n", token
));
138 KeWaitForSingleObject( &SleepingThread
->Event
,
142 (tmio
!= 0) ? &Timeout
: NULL
);
144 TcpipAcquireFastMutex( &SleepingThreadsLock
);
145 RemoveEntryList( &SleepingThread
->Entry
);
146 TcpipReleaseFastMutex( &SleepingThreadsLock
);
148 TcpipRecursiveMutexEnter( &TCPLock
, TRUE
);
150 exFreePool( SleepingThread
);
154 TI_DbgPrint(DEBUG_TCP
,("Waiting finished: %x\n", token
));
158 void TCPWakeup( void *ClientData
, void *token
) {
160 PSLEEPING_THREAD SleepingThread
;
162 TcpipAcquireFastMutex( &SleepingThreadsLock
);
163 Entry
= SleepingThreadsList
.Flink
;
164 while( Entry
!= &SleepingThreadsList
) {
165 SleepingThread
= CONTAINING_RECORD(Entry
, SLEEPING_THREAD
, Entry
);
166 TI_DbgPrint(DEBUG_TCP
,("Sleeper @ %x\n", SleepingThread
));
167 if( SleepingThread
->SleepToken
== token
) {
168 TI_DbgPrint(DEBUG_TCP
,("Setting event to wake %x\n", token
));
169 KeSetEvent( &SleepingThread
->Event
, IO_NETWORK_INCREMENT
, FALSE
);
171 Entry
= Entry
->Flink
;
173 TcpipReleaseFastMutex( &SleepingThreadsLock
);
176 /* Memory management routines
178 * By far the most requests for memory are either for 128 or 2048 byte blocks,
179 * so we want to satisfy those from lookaside lists. Unfortunately, the
180 * TCPFree() function doesn't pass the size of the block to be freed, so we
181 * need to keep track of it ourselves. We do it by prepending each block with
182 * 4 bytes, indicating if this is a 'L'arge (2048), 'S'mall (128) or 'O'ther
186 /* Set to some non-zero value to get a profile of memory allocation sizes */
187 #define MEM_PROFILE 0
189 #define SMALL_SIZE 128
190 #define LARGE_SIZE 2048
192 #define SIGNATURE_LARGE TAG('L','L','L','L')
193 #define SIGNATURE_SMALL TAG('S','S','S','S')
194 #define SIGNATURE_OTHER TAG('O','O','O','O')
195 #define TCP_TAG TAG('T','C','P',' ')
197 static NPAGED_LOOKASIDE_LIST LargeLookasideList
;
198 static NPAGED_LOOKASIDE_LIST SmallLookasideList
;
201 TCPMemStartup( void )
203 ExInitializeNPagedLookasideList( &LargeLookasideList
,
207 LARGE_SIZE
+ sizeof( ULONG
),
210 ExInitializeNPagedLookasideList( &SmallLookasideList
,
214 SMALL_SIZE
+ sizeof( ULONG
),
218 return STATUS_SUCCESS
;
221 void *TCPMalloc( void *ClientData
,
222 OSK_UINT Bytes
, OSK_PCHAR File
, OSK_UINT Line
) {
227 static OSK_UINT
*Sizes
= NULL
, *Counts
= NULL
, ArrayAllocated
= 0;
228 static OSK_UINT ArrayUsed
= 0, AllocationCount
= 0;
229 OSK_UINT i
, NewSize
, *NewArray
;
233 for ( i
= 0; i
< ArrayUsed
&& ! Found
; i
++ ) {
234 Found
= ( Sizes
[i
] == Bytes
);
240 if ( ArrayAllocated
<= ArrayUsed
) {
241 NewSize
= ( 0 == ArrayAllocated
? 16 : 2 * ArrayAllocated
);
242 NewArray
= exAllocatePool( NonPagedPool
, 2 * NewSize
* sizeof( OSK_UINT
) );
243 if ( NULL
!= NewArray
) {
244 if ( 0 != ArrayAllocated
) {
245 memcpy( NewArray
, Sizes
,
246 ArrayAllocated
* sizeof( OSK_UINT
) );
248 memcpy( NewArray
+ NewSize
, Counts
,
249 ArrayAllocated
* sizeof( OSK_UINT
) );
250 exFreePool( Counts
);
253 Counts
= NewArray
+ NewSize
;
254 ArrayAllocated
= NewSize
;
255 } else if ( 0 != ArrayAllocated
) {
257 exFreePool( Counts
);
261 if ( ArrayUsed
< ArrayAllocated
) {
262 Sizes
[ArrayUsed
] = Bytes
;
263 Counts
[ArrayUsed
] = 1;
268 if ( 0 == (++AllocationCount
% MEM_PROFILE
) ) {
269 TI_DbgPrint(DEBUG_TCP
, ("Memory allocation size profile:\n"));
270 for ( i
= 0; i
< ArrayUsed
; i
++ ) {
271 TI_DbgPrint(DEBUG_TCP
,
272 ("Size %4u Count %5u\n", Sizes
[i
], Counts
[i
]));
274 TI_DbgPrint(DEBUG_TCP
, ("End of memory allocation size profile\n"));
276 #endif /* MEM_PROFILE */
278 if ( SMALL_SIZE
== Bytes
) {
279 v
= ExAllocateFromNPagedLookasideList( &SmallLookasideList
);
280 Signature
= SIGNATURE_SMALL
;
281 } else if ( LARGE_SIZE
== Bytes
) {
282 v
= ExAllocateFromNPagedLookasideList( &LargeLookasideList
);
283 Signature
= SIGNATURE_LARGE
;
285 v
= ExAllocatePool( NonPagedPool
, Bytes
+ sizeof(ULONG
) );
286 Signature
= SIGNATURE_OTHER
;
289 *((ULONG
*) v
) = Signature
;
290 v
= (void *)((char *) v
+ sizeof(ULONG
));
291 TrackWithTag( FOURCC('f','b','s','d'), v
, (PCHAR
)File
, Line
);
297 void TCPFree( void *ClientData
,
298 void *data
, OSK_PCHAR File
, OSK_UINT Line
) {
301 UntrackFL( (PCHAR
)File
, Line
, data
, FOURCC('f','b','s','d') );
302 data
= (void *)((char *) data
- sizeof(ULONG
));
303 Signature
= *((ULONG
*) data
);
304 if ( SIGNATURE_SMALL
== Signature
) {
305 ExFreeToNPagedLookasideList( &SmallLookasideList
, data
);
306 } else if ( SIGNATURE_LARGE
== Signature
) {
307 ExFreeToNPagedLookasideList( &LargeLookasideList
, data
);
308 } else if ( SIGNATURE_OTHER
== Signature
) {
316 TCPMemShutdown( void )
318 ExDeleteNPagedLookasideList( &SmallLookasideList
);
319 ExDeleteNPagedLookasideList( &LargeLookasideList
);