xref: /reactos/dll/win32/rpcrt4/rpcrt4_main.c (revision 8786e12d)
1 /*
2  *  RPCRT4
3  *
4  * Copyright 2000 Huw D M Davies for CodeWeavers
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  *
20  * WINE RPC TODO's (and a few TODONT's)
21  *
22  * - Statistics: we are supposed to be keeping various counters.  we aren't.
23  *
24  * - Async RPC: Unimplemented.
25  *
26  * - The NT "ports" API, aka LPC.  Greg claims this is on his radar.  Might (or
27  *   might not) enable users to get some kind of meaningful result out of
28  *   NT-based native rpcrt4's.  Commonly-used transport for self-to-self RPC's.
29  */
30 
31 #include "config.h"
32 
33 #include <stdarg.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 
38 #include "ntstatus.h"
39 #define WIN32_NO_STATUS
40 #include "windef.h"
41 #include "winerror.h"
42 #include "winbase.h"
43 #include "winuser.h"
44 #include "winnt.h"
45 #include "wine/winternl.h"
46 #include "ntsecapi.h"
47 #include "iptypes.h"
48 #include "iphlpapi.h"
49 #include "wine/unicode.h"
50 #include "rpc.h"
51 
52 #include "ole2.h"
53 #include "rpcndr.h"
54 #include "rpcproxy.h"
55 
56 #include "rpc_binding.h"
57 #include "rpc_server.h"
58 
59 #include "wine/debug.h"
60 
61 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
62 
63 static UUID uuid_nil;
64 
65 static CRITICAL_SECTION uuid_cs;
66 static CRITICAL_SECTION_DEBUG critsect_debug =
67 {
68     0, 0, &uuid_cs,
69     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
70       0, 0, { (DWORD_PTR)(__FILE__ ": uuid_cs") }
71 };
72 static CRITICAL_SECTION uuid_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
73 
74 static CRITICAL_SECTION threaddata_cs;
75 static CRITICAL_SECTION_DEBUG threaddata_cs_debug =
76 {
77     0, 0, &threaddata_cs,
78     { &threaddata_cs_debug.ProcessLocksList, &threaddata_cs_debug.ProcessLocksList },
79       0, 0, { (DWORD_PTR)(__FILE__ ": threaddata_cs") }
80 };
81 static CRITICAL_SECTION threaddata_cs = { &threaddata_cs_debug, -1, 0, 0, 0, 0 };
82 
83 static struct list threaddata_list = LIST_INIT(threaddata_list);
84 
85 struct context_handle_list
86 {
87     struct context_handle_list *next;
88     NDR_SCONTEXT context_handle;
89 };
90 
91 struct threaddata
92 {
93     struct list entry;
94     CRITICAL_SECTION cs;
95     DWORD thread_id;
96     RpcConnection *connection;
97     RpcBinding *server_binding;
98     struct context_handle_list *context_handle_list;
99 };
100 
101 /***********************************************************************
102  * DllMain
103  *
104  * PARAMS
105  *     hinstDLL    [I] handle to the DLL's instance
106  *     fdwReason   [I]
107  *     lpvReserved [I] reserved, must be NULL
108  *
109  * RETURNS
110  *     Success: TRUE
111  *     Failure: FALSE
112  */
113 
114 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
115 {
116     struct threaddata *tdata;
117 
118     switch (fdwReason) {
119     case DLL_PROCESS_ATTACH:
120         break;
121 
122     case DLL_THREAD_DETACH:
123         tdata = NtCurrentTeb()->ReservedForNtRpc;
124         if (tdata)
125         {
126             EnterCriticalSection(&threaddata_cs);
127             list_remove(&tdata->entry);
128             LeaveCriticalSection(&threaddata_cs);
129 
130             tdata->cs.DebugInfo->Spare[0] = 0;
131             DeleteCriticalSection(&tdata->cs);
132             if (tdata->connection)
133                 ERR("tdata->connection should be NULL but is still set to %p\n", tdata->connection);
134             if (tdata->server_binding)
135                 ERR("tdata->server_binding should be NULL but is still set to %p\n", tdata->server_binding);
136             HeapFree(GetProcessHeap(), 0, tdata);
137         }
138         break;
139 
140     case DLL_PROCESS_DETACH:
141         if (lpvReserved) break; /* do nothing if process is shutting down */
142         RPCRT4_destroy_all_protseqs();
143         RPCRT4_ServerFreeAllRegisteredAuthInfo();
144         DeleteCriticalSection(&uuid_cs);
145         DeleteCriticalSection(&threaddata_cs);
146         break;
147     }
148 
149     return TRUE;
150 }
151 
152 /*************************************************************************
153  *           RpcStringFreeA   [RPCRT4.@]
154  *
155  * Frees a character string allocated by the RPC run-time library.
156  *
157  * RETURNS
158  *
159  *  S_OK if successful.
160  */
161 RPC_STATUS WINAPI RpcStringFreeA(RPC_CSTR* String)
162 {
163   HeapFree( GetProcessHeap(), 0, *String);
164 
165   return RPC_S_OK;
166 }
167 
168 /*************************************************************************
169  *           RpcStringFreeW   [RPCRT4.@]
170  *
171  * Frees a character string allocated by the RPC run-time library.
172  *
173  * RETURNS
174  *
175  *  S_OK if successful.
176  */
177 RPC_STATUS WINAPI RpcStringFreeW(RPC_WSTR* String)
178 {
179   HeapFree( GetProcessHeap(), 0, *String);
180 
181   return RPC_S_OK;
182 }
183 
184 /*************************************************************************
185  *           RpcRaiseException   [RPCRT4.@]
186  *
187  * Raises an exception.
188  */
189 void DECLSPEC_NORETURN WINAPI RpcRaiseException(RPC_STATUS exception)
190 {
191   /* shouldn't return */
192   RaiseException(exception, 0, 0, NULL);
193   ERR("handler continued execution\n");
194   ExitProcess(1);
195 }
196 
197 /*************************************************************************
198  * UuidCompare [RPCRT4.@]
199  *
200  * PARAMS
201  *     UUID *Uuid1        [I] Uuid to compare
202  *     UUID *Uuid2        [I] Uuid to compare
203  *     RPC_STATUS *Status [O] returns RPC_S_OK
204  *
205  * RETURNS
206  *    -1  if Uuid1 is less than Uuid2
207  *     0  if Uuid1 and Uuid2 are equal
208  *     1  if Uuid1 is greater than Uuid2
209  */
210 int WINAPI UuidCompare(UUID *Uuid1, UUID *Uuid2, RPC_STATUS *Status)
211 {
212   int i;
213 
214   TRACE("(%s,%s)\n", debugstr_guid(Uuid1), debugstr_guid(Uuid2));
215 
216   *Status = RPC_S_OK;
217 
218   if (!Uuid1) Uuid1 = &uuid_nil;
219   if (!Uuid2) Uuid2 = &uuid_nil;
220 
221   if (Uuid1 == Uuid2) return 0;
222 
223   if (Uuid1->Data1 != Uuid2->Data1)
224     return Uuid1->Data1 < Uuid2->Data1 ? -1 : 1;
225 
226   if (Uuid1->Data2 != Uuid2->Data2)
227     return Uuid1->Data2 < Uuid2->Data2 ? -1 : 1;
228 
229   if (Uuid1->Data3 != Uuid2->Data3)
230     return Uuid1->Data3 < Uuid2->Data3 ? -1 : 1;
231 
232   for (i = 0; i < 8; i++) {
233     if (Uuid1->Data4[i] < Uuid2->Data4[i])
234       return -1;
235     if (Uuid1->Data4[i] > Uuid2->Data4[i])
236       return 1;
237   }
238 
239   return 0;
240 }
241 
242 /*************************************************************************
243  * UuidEqual [RPCRT4.@]
244  *
245  * PARAMS
246  *     UUID *Uuid1        [I] Uuid to compare
247  *     UUID *Uuid2        [I] Uuid to compare
248  *     RPC_STATUS *Status [O] returns RPC_S_OK
249  *
250  * RETURNS
251  *     TRUE/FALSE
252  */
253 int WINAPI UuidEqual(UUID *Uuid1, UUID *Uuid2, RPC_STATUS *Status)
254 {
255   TRACE("(%s,%s)\n", debugstr_guid(Uuid1), debugstr_guid(Uuid2));
256   return !UuidCompare(Uuid1, Uuid2, Status);
257 }
258 
259 /*************************************************************************
260  * UuidIsNil [RPCRT4.@]
261  *
262  * PARAMS
263  *     UUID *Uuid         [I] Uuid to compare
264  *     RPC_STATUS *Status [O] returns RPC_S_OK
265  *
266  * RETURNS
267  *     TRUE/FALSE
268  */
269 int WINAPI UuidIsNil(UUID *Uuid, RPC_STATUS *Status)
270 {
271   TRACE("(%s)\n", debugstr_guid(Uuid));
272   if (!Uuid) return TRUE;
273   return !UuidCompare(Uuid, &uuid_nil, Status);
274 }
275 
276  /*************************************************************************
277  * UuidCreateNil [RPCRT4.@]
278  *
279  * PARAMS
280  *     UUID *Uuid [O] returns a nil UUID
281  *
282  * RETURNS
283  *     RPC_S_OK
284  */
285 RPC_STATUS WINAPI UuidCreateNil(UUID *Uuid)
286 {
287   *Uuid = uuid_nil;
288   return RPC_S_OK;
289 }
290 
291 /*************************************************************************
292  *           UuidCreate   [RPCRT4.@]
293  *
294  * Creates a 128bit UUID.
295  *
296  * RETURNS
297  *
298  *  RPC_S_OK if successful.
299  *  RPC_S_UUID_LOCAL_ONLY if UUID is only locally unique.
300  *
301  * NOTES
302  *
303  *  Follows RFC 4122, section 4.4 (Algorithms for Creating a UUID from
304  *  Truly Random or Pseudo-Random Numbers)
305  */
306 RPC_STATUS WINAPI UuidCreate(UUID *Uuid)
307 {
308     RtlGenRandom(Uuid, sizeof(*Uuid));
309     /* Clear the version bits and set the version (4) */
310     Uuid->Data3 &= 0x0fff;
311     Uuid->Data3 |= (4 << 12);
312     /* Set the topmost bits of Data4 (clock_seq_hi_and_reserved) as
313      * specified in RFC 4122, section 4.4.
314      */
315     Uuid->Data4[0] &= 0x3f;
316     Uuid->Data4[0] |= 0x80;
317 
318     TRACE("%s\n", debugstr_guid(Uuid));
319 
320     return RPC_S_OK;
321 }
322 
323 /* Number of 100ns ticks per clock tick. To be safe, assume that the clock
324    resolution is at least 1000 * 100 * (1/1000000) = 1/10 of a second */
325 #define TICKS_PER_CLOCK_TICK 1000
326 #define SECSPERDAY  86400
327 #define TICKSPERSEC 10000000
328 /* UUID system time starts at October 15, 1582 */
329 #define SECS_15_OCT_1582_TO_1601  ((17 + 30 + 31 + 365 * 18 + 5) * SECSPERDAY)
330 #define TICKS_15_OCT_1582_TO_1601 ((ULONGLONG)SECS_15_OCT_1582_TO_1601 * TICKSPERSEC)
331 
332 static void RPC_UuidGetSystemTime(ULONGLONG *time)
333 {
334     FILETIME ft;
335 
336     GetSystemTimeAsFileTime(&ft);
337 
338     *time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
339     *time += TICKS_15_OCT_1582_TO_1601;
340 }
341 
342 /* Assume that a hardware address is at least 6 bytes long */
343 #define ADDRESS_BYTES_NEEDED 6
344 
345 static RPC_STATUS RPC_UuidGetNodeAddress(BYTE *address)
346 {
347     int i;
348     DWORD status = RPC_S_OK;
349 
350     ULONG buflen = sizeof(IP_ADAPTER_INFO);
351     PIP_ADAPTER_INFO adapter = HeapAlloc(GetProcessHeap(), 0, buflen);
352 
353     if (GetAdaptersInfo(adapter, &buflen) == ERROR_BUFFER_OVERFLOW) {
354         HeapFree(GetProcessHeap(), 0, adapter);
355         adapter = HeapAlloc(GetProcessHeap(), 0, buflen);
356     }
357 
358     if (GetAdaptersInfo(adapter, &buflen) == NO_ERROR) {
359         for (i = 0; i < ADDRESS_BYTES_NEEDED; i++) {
360             address[i] = adapter->Address[i];
361         }
362     }
363     /* We can't get a hardware address, just use random numbers.
364        Set the multicast bit to prevent conflicts with real cards. */
365     else {
366         RtlGenRandom(address, ADDRESS_BYTES_NEEDED);
367         address[0] |= 0x01;
368         status = RPC_S_UUID_LOCAL_ONLY;
369     }
370 
371     HeapFree(GetProcessHeap(), 0, adapter);
372     return status;
373 }
374 
375 /*************************************************************************
376  *           UuidCreateSequential   [RPCRT4.@]
377  *
378  * Creates a 128bit UUID.
379  *
380  * RETURNS
381  *
382  *  RPC_S_OK if successful.
383  *  RPC_S_UUID_LOCAL_ONLY if UUID is only locally unique.
384  *
385  *  FIXME: No compensation for changes across reloading
386  *         this dll or across reboots (e.g. clock going
387  *         backwards and swapped network cards). The RFC
388  *         suggests using NVRAM for storing persistent
389  *         values.
390  */
391 RPC_STATUS WINAPI UuidCreateSequential(UUID *Uuid)
392 {
393     static BOOL initialised;
394     static int count;
395 
396     ULONGLONG time;
397     static ULONGLONG timelast;
398     static WORD sequence;
399 
400     static DWORD status;
401     static BYTE address[MAX_ADAPTER_ADDRESS_LENGTH];
402 
403     EnterCriticalSection(&uuid_cs);
404 
405     if (!initialised) {
406         RPC_UuidGetSystemTime(&timelast);
407         count = TICKS_PER_CLOCK_TICK;
408 
409         sequence = ((rand() & 0xff) << 8) + (rand() & 0xff);
410         sequence &= 0x1fff;
411 
412         status = RPC_UuidGetNodeAddress(address);
413         initialised = TRUE;
414     }
415 
416     /* Generate time element of the UUID. Account for going faster
417        than our clock as well as the clock going backwards. */
418     while (1) {
419         RPC_UuidGetSystemTime(&time);
420         if (time > timelast) {
421             count = 0;
422             break;
423         }
424         if (time < timelast) {
425             sequence = (sequence + 1) & 0x1fff;
426             count = 0;
427             break;
428         }
429         if (count < TICKS_PER_CLOCK_TICK) {
430             count++;
431             break;
432         }
433     }
434 
435     timelast = time;
436     time += count;
437 
438     /* Pack the information into the UUID structure. */
439 
440     Uuid->Data1  = (ULONG)(time & 0xffffffff);
441     Uuid->Data2  = (unsigned short)((time >> 32) & 0xffff);
442     Uuid->Data3  = (unsigned short)((time >> 48) & 0x0fff);
443 
444     /* This is a version 1 UUID */
445     Uuid->Data3 |= (1 << 12);
446 
447     Uuid->Data4[0]  = sequence & 0xff;
448     Uuid->Data4[1]  = (sequence & 0x3f00) >> 8;
449     Uuid->Data4[1] |= 0x80;
450     memcpy(&Uuid->Data4[2], address, ADDRESS_BYTES_NEEDED);
451 
452     LeaveCriticalSection(&uuid_cs);
453 
454     TRACE("%s\n", debugstr_guid(Uuid));
455 
456     return status;
457 }
458 
459 /*************************************************************************
460  *           I_UuidCreate   [RPCRT4.@]
461  *
462  * See UuidCreateSequential()
463  */
464 RPC_STATUS WINAPI I_UuidCreate(UUID *Uuid)
465 {
466     return UuidCreateSequential(Uuid);
467 }
468 
469 /*************************************************************************
470  *           UuidHash   [RPCRT4.@]
471  *
472  * Generates a hash value for a given UUID
473  *
474  * Code based on FreeDCE implementation
475  *
476  */
477 unsigned short WINAPI UuidHash(UUID *uuid, RPC_STATUS *Status)
478 {
479   BYTE *data = (BYTE*)uuid;
480   short c0 = 0, c1 = 0, x, y;
481   unsigned int i;
482 
483   if (!uuid) data = (BYTE*)(uuid = &uuid_nil);
484 
485   TRACE("(%s)\n", debugstr_guid(uuid));
486 
487   for (i=0; i<sizeof(UUID); i++) {
488     c0 += data[i];
489     c1 += c0;
490   }
491 
492   x = -c1 % 255;
493   if (x < 0) x += 255;
494 
495   y = (c1 - c0) % 255;
496   if (y < 0) y += 255;
497 
498   *Status = RPC_S_OK;
499   return y*256 + x;
500 }
501 
502 /*************************************************************************
503  *           UuidToStringA   [RPCRT4.@]
504  *
505  * Converts a UUID to a string.
506  *
507  * UUID format is 8 hex digits, followed by a hyphen then three groups of
508  * 4 hex digits each followed by a hyphen and then 12 hex digits
509  *
510  * RETURNS
511  *
512  *  S_OK if successful.
513  *  S_OUT_OF_MEMORY if unsuccessful.
514  */
515 RPC_STATUS WINAPI UuidToStringA(UUID *Uuid, RPC_CSTR* StringUuid)
516 {
517   *StringUuid = HeapAlloc( GetProcessHeap(), 0, sizeof(char) * 37);
518 
519   if(!(*StringUuid))
520     return RPC_S_OUT_OF_MEMORY;
521 
522   if (!Uuid) Uuid = &uuid_nil;
523 
524   sprintf( (char*)*StringUuid, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
525                  Uuid->Data1, Uuid->Data2, Uuid->Data3,
526                  Uuid->Data4[0], Uuid->Data4[1], Uuid->Data4[2],
527                  Uuid->Data4[3], Uuid->Data4[4], Uuid->Data4[5],
528                  Uuid->Data4[6], Uuid->Data4[7] );
529 
530   return RPC_S_OK;
531 }
532 
533 /*************************************************************************
534  *           UuidToStringW   [RPCRT4.@]
535  *
536  * Converts a UUID to a string.
537  *
538  *  S_OK if successful.
539  *  S_OUT_OF_MEMORY if unsuccessful.
540  */
541 RPC_STATUS WINAPI UuidToStringW(UUID *Uuid, RPC_WSTR* StringUuid)
542 {
543   char buf[37];
544 
545   if (!Uuid) Uuid = &uuid_nil;
546 
547   sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
548                Uuid->Data1, Uuid->Data2, Uuid->Data3,
549                Uuid->Data4[0], Uuid->Data4[1], Uuid->Data4[2],
550                Uuid->Data4[3], Uuid->Data4[4], Uuid->Data4[5],
551                Uuid->Data4[6], Uuid->Data4[7] );
552 
553   *StringUuid = RPCRT4_strdupAtoW(buf);
554 
555   if(!(*StringUuid))
556     return RPC_S_OUT_OF_MEMORY;
557 
558   return RPC_S_OK;
559 }
560 
561 static const BYTE hex2bin[] =
562 {
563     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x00 */
564     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x10 */
565     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x20 */
566     0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0,        /* 0x30 */
567     0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0,  /* 0x40 */
568     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x50 */
569     0,10,11,12,13,14,15                     /* 0x60 */
570 };
571 
572 /***********************************************************************
573  *		UuidFromStringA (RPCRT4.@)
574  */
575 RPC_STATUS WINAPI UuidFromStringA(RPC_CSTR s, UUID *uuid)
576 {
577     int i;
578 
579     if (!s) return UuidCreateNil( uuid );
580 
581     if (strlen((char*)s) != 36) return RPC_S_INVALID_STRING_UUID;
582 
583     if ((s[8]!='-') || (s[13]!='-') || (s[18]!='-') || (s[23]!='-'))
584         return RPC_S_INVALID_STRING_UUID;
585 
586     for (i=0; i<36; i++)
587     {
588         if ((i == 8)||(i == 13)||(i == 18)||(i == 23)) continue;
589         if (s[i] > 'f' || (!hex2bin[s[i]] && s[i] != '0')) return RPC_S_INVALID_STRING_UUID;
590     }
591 
592     /* in form XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX */
593 
594     uuid->Data1 = (hex2bin[s[0]] << 28 | hex2bin[s[1]] << 24 | hex2bin[s[2]] << 20 | hex2bin[s[3]] << 16 |
595                    hex2bin[s[4]] << 12 | hex2bin[s[5]]  << 8 | hex2bin[s[6]]  << 4 | hex2bin[s[7]]);
596     uuid->Data2 =  hex2bin[s[9]] << 12 | hex2bin[s[10]] << 8 | hex2bin[s[11]] << 4 | hex2bin[s[12]];
597     uuid->Data3 = hex2bin[s[14]] << 12 | hex2bin[s[15]] << 8 | hex2bin[s[16]] << 4 | hex2bin[s[17]];
598 
599     /* these are just sequential bytes */
600     uuid->Data4[0] = hex2bin[s[19]] << 4 | hex2bin[s[20]];
601     uuid->Data4[1] = hex2bin[s[21]] << 4 | hex2bin[s[22]];
602     uuid->Data4[2] = hex2bin[s[24]] << 4 | hex2bin[s[25]];
603     uuid->Data4[3] = hex2bin[s[26]] << 4 | hex2bin[s[27]];
604     uuid->Data4[4] = hex2bin[s[28]] << 4 | hex2bin[s[29]];
605     uuid->Data4[5] = hex2bin[s[30]] << 4 | hex2bin[s[31]];
606     uuid->Data4[6] = hex2bin[s[32]] << 4 | hex2bin[s[33]];
607     uuid->Data4[7] = hex2bin[s[34]] << 4 | hex2bin[s[35]];
608     return RPC_S_OK;
609 }
610 
611 
612 /***********************************************************************
613  *		UuidFromStringW (RPCRT4.@)
614  */
615 RPC_STATUS WINAPI UuidFromStringW(RPC_WSTR s, UUID *uuid)
616 {
617     int i;
618 
619     if (!s) return UuidCreateNil( uuid );
620 
621     if (strlenW(s) != 36) return RPC_S_INVALID_STRING_UUID;
622 
623     if ((s[8]!='-') || (s[13]!='-') || (s[18]!='-') || (s[23]!='-'))
624         return RPC_S_INVALID_STRING_UUID;
625 
626     for (i=0; i<36; i++)
627     {
628         if ((i == 8)||(i == 13)||(i == 18)||(i == 23)) continue;
629         if (s[i] > 'f' || (!hex2bin[s[i]] && s[i] != '0')) return RPC_S_INVALID_STRING_UUID;
630     }
631 
632     /* in form XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX */
633 
634     uuid->Data1 = (hex2bin[s[0]] << 28 | hex2bin[s[1]] << 24 | hex2bin[s[2]] << 20 | hex2bin[s[3]] << 16 |
635                    hex2bin[s[4]] << 12 | hex2bin[s[5]]  << 8 | hex2bin[s[6]]  << 4 | hex2bin[s[7]]);
636     uuid->Data2 =  hex2bin[s[9]] << 12 | hex2bin[s[10]] << 8 | hex2bin[s[11]] << 4 | hex2bin[s[12]];
637     uuid->Data3 = hex2bin[s[14]] << 12 | hex2bin[s[15]] << 8 | hex2bin[s[16]] << 4 | hex2bin[s[17]];
638 
639     /* these are just sequential bytes */
640     uuid->Data4[0] = hex2bin[s[19]] << 4 | hex2bin[s[20]];
641     uuid->Data4[1] = hex2bin[s[21]] << 4 | hex2bin[s[22]];
642     uuid->Data4[2] = hex2bin[s[24]] << 4 | hex2bin[s[25]];
643     uuid->Data4[3] = hex2bin[s[26]] << 4 | hex2bin[s[27]];
644     uuid->Data4[4] = hex2bin[s[28]] << 4 | hex2bin[s[29]];
645     uuid->Data4[5] = hex2bin[s[30]] << 4 | hex2bin[s[31]];
646     uuid->Data4[6] = hex2bin[s[32]] << 4 | hex2bin[s[33]];
647     uuid->Data4[7] = hex2bin[s[34]] << 4 | hex2bin[s[35]];
648     return RPC_S_OK;
649 }
650 
651 /***********************************************************************
652  *              DllRegisterServer (RPCRT4.@)
653  */
654 
655 HRESULT WINAPI DllRegisterServer( void )
656 {
657     FIXME( "(): stub\n" );
658     return S_OK;
659 }
660 
661 #define MAX_RPC_ERROR_TEXT 256
662 
663 /******************************************************************************
664  * DceErrorInqTextW   (rpcrt4.@)
665  *
666  * Notes
667  * 1. On passing a NULL pointer the code does bomb out.
668  * 2. The size of the required buffer is not defined in the documentation.
669  *    It appears to be 256.
670  * 3. The function is defined to return RPC_S_INVALID_ARG but I don't know
671  *    of any value for which it does.
672  * 4. The MSDN documentation currently declares that the second argument is
673  *    unsigned char *, even for the W version.  I don't believe it.
674  */
675 RPC_STATUS RPC_ENTRY DceErrorInqTextW (RPC_STATUS e, RPC_WSTR buffer)
676 {
677     DWORD count;
678     count = FormatMessageW (FORMAT_MESSAGE_FROM_SYSTEM |
679                 FORMAT_MESSAGE_IGNORE_INSERTS,
680                 NULL, e, 0, buffer, MAX_RPC_ERROR_TEXT, NULL);
681     if (!count)
682     {
683         count = FormatMessageW (FORMAT_MESSAGE_FROM_SYSTEM |
684                 FORMAT_MESSAGE_IGNORE_INSERTS,
685                 NULL, RPC_S_NOT_RPC_ERROR, 0, buffer, MAX_RPC_ERROR_TEXT, NULL);
686         if (!count)
687         {
688             ERR ("Failed to translate error\n");
689             return RPC_S_INVALID_ARG;
690         }
691     }
692     return RPC_S_OK;
693 }
694 
695 /******************************************************************************
696  * DceErrorInqTextA   (rpcrt4.@)
697  */
698 RPC_STATUS RPC_ENTRY DceErrorInqTextA (RPC_STATUS e, RPC_CSTR buffer)
699 {
700     RPC_STATUS status;
701     WCHAR bufferW [MAX_RPC_ERROR_TEXT];
702     if ((status = DceErrorInqTextW (e, bufferW)) == RPC_S_OK)
703     {
704         if (!WideCharToMultiByte(CP_ACP, 0, bufferW, -1, (LPSTR)buffer, MAX_RPC_ERROR_TEXT,
705                 NULL, NULL))
706         {
707             ERR ("Failed to translate error\n");
708             status = RPC_S_INVALID_ARG;
709         }
710     }
711     return status;
712 }
713 
714 /******************************************************************************
715  * I_RpcAllocate   (rpcrt4.@)
716  */
717 void * WINAPI I_RpcAllocate(unsigned int Size)
718 {
719     return HeapAlloc(GetProcessHeap(), 0, Size);
720 }
721 
722 /******************************************************************************
723  * I_RpcFree   (rpcrt4.@)
724  */
725 void WINAPI I_RpcFree(void *Object)
726 {
727     HeapFree(GetProcessHeap(), 0, Object);
728 }
729 
730 /******************************************************************************
731  * I_RpcMapWin32Status   (rpcrt4.@)
732  *
733  * Maps Win32 RPC error codes to NT statuses.
734  *
735  * PARAMS
736  *  status [I] Win32 RPC error code.
737  *
738  * RETURNS
739  *  Appropriate translation into an NT status code.
740  */
741 LONG WINAPI I_RpcMapWin32Status(RPC_STATUS status)
742 {
743     TRACE("(%d)\n", status);
744     switch (status)
745     {
746     case ERROR_ACCESS_DENIED: return STATUS_ACCESS_DENIED;
747     case ERROR_INVALID_HANDLE: return RPC_NT_SS_CONTEXT_MISMATCH;
748     case ERROR_OUTOFMEMORY: return STATUS_NO_MEMORY;
749     case ERROR_INVALID_PARAMETER: return STATUS_INVALID_PARAMETER;
750     case ERROR_INSUFFICIENT_BUFFER: return STATUS_BUFFER_TOO_SMALL;
751     case ERROR_MAX_THRDS_REACHED: return STATUS_NO_MEMORY;
752     case ERROR_NOACCESS: return STATUS_ACCESS_VIOLATION;
753     case ERROR_NOT_ENOUGH_SERVER_MEMORY: return STATUS_INSUFF_SERVER_RESOURCES;
754     case ERROR_WRONG_PASSWORD: return STATUS_WRONG_PASSWORD;
755     case ERROR_INVALID_LOGON_HOURS: return STATUS_INVALID_LOGON_HOURS;
756     case ERROR_PASSWORD_EXPIRED: return STATUS_PASSWORD_EXPIRED;
757     case ERROR_ACCOUNT_DISABLED: return STATUS_ACCOUNT_DISABLED;
758     case ERROR_INVALID_SECURITY_DESCR: return STATUS_INVALID_SECURITY_DESCR;
759     case RPC_S_INVALID_STRING_BINDING: return RPC_NT_INVALID_STRING_BINDING;
760     case RPC_S_WRONG_KIND_OF_BINDING: return RPC_NT_WRONG_KIND_OF_BINDING;
761     case RPC_S_INVALID_BINDING: return RPC_NT_INVALID_BINDING;
762     case RPC_S_PROTSEQ_NOT_SUPPORTED: return RPC_NT_PROTSEQ_NOT_SUPPORTED;
763     case RPC_S_INVALID_RPC_PROTSEQ: return RPC_NT_INVALID_RPC_PROTSEQ;
764     case RPC_S_INVALID_STRING_UUID: return RPC_NT_INVALID_STRING_UUID;
765     case RPC_S_INVALID_ENDPOINT_FORMAT: return RPC_NT_INVALID_ENDPOINT_FORMAT;
766     case RPC_S_INVALID_NET_ADDR: return RPC_NT_INVALID_NET_ADDR;
767     case RPC_S_NO_ENDPOINT_FOUND: return RPC_NT_NO_ENDPOINT_FOUND;
768     case RPC_S_INVALID_TIMEOUT: return RPC_NT_INVALID_TIMEOUT;
769     case RPC_S_OBJECT_NOT_FOUND: return RPC_NT_OBJECT_NOT_FOUND;
770     case RPC_S_ALREADY_REGISTERED: return RPC_NT_ALREADY_REGISTERED;
771     case RPC_S_TYPE_ALREADY_REGISTERED: return RPC_NT_TYPE_ALREADY_REGISTERED;
772     case RPC_S_ALREADY_LISTENING: return RPC_NT_ALREADY_LISTENING;
773     case RPC_S_NO_PROTSEQS_REGISTERED: return RPC_NT_NO_PROTSEQS_REGISTERED;
774     case RPC_S_NOT_LISTENING: return RPC_NT_NOT_LISTENING;
775     case RPC_S_UNKNOWN_MGR_TYPE: return RPC_NT_UNKNOWN_MGR_TYPE;
776     case RPC_S_UNKNOWN_IF: return RPC_NT_UNKNOWN_IF;
777     case RPC_S_NO_BINDINGS: return RPC_NT_NO_BINDINGS;
778     case RPC_S_NO_PROTSEQS: return RPC_NT_NO_PROTSEQS;
779     case RPC_S_CANT_CREATE_ENDPOINT: return RPC_NT_CANT_CREATE_ENDPOINT;
780     case RPC_S_OUT_OF_RESOURCES: return RPC_NT_OUT_OF_RESOURCES;
781     case RPC_S_SERVER_UNAVAILABLE: return RPC_NT_SERVER_UNAVAILABLE;
782     case RPC_S_SERVER_TOO_BUSY: return RPC_NT_SERVER_TOO_BUSY;
783     case RPC_S_INVALID_NETWORK_OPTIONS: return RPC_NT_INVALID_NETWORK_OPTIONS;
784     case RPC_S_NO_CALL_ACTIVE: return RPC_NT_NO_CALL_ACTIVE;
785     case RPC_S_CALL_FAILED: return RPC_NT_CALL_FAILED;
786     case RPC_S_CALL_FAILED_DNE: return RPC_NT_CALL_FAILED_DNE;
787     case RPC_S_PROTOCOL_ERROR: return RPC_NT_PROTOCOL_ERROR;
788     case RPC_S_UNSUPPORTED_TRANS_SYN: return RPC_NT_UNSUPPORTED_TRANS_SYN;
789     case RPC_S_UNSUPPORTED_TYPE: return RPC_NT_UNSUPPORTED_TYPE;
790     case RPC_S_INVALID_TAG: return RPC_NT_INVALID_TAG;
791     case RPC_S_INVALID_BOUND: return RPC_NT_INVALID_BOUND;
792     case RPC_S_NO_ENTRY_NAME: return RPC_NT_NO_ENTRY_NAME;
793     case RPC_S_INVALID_NAME_SYNTAX: return RPC_NT_INVALID_NAME_SYNTAX;
794     case RPC_S_UNSUPPORTED_NAME_SYNTAX: return RPC_NT_UNSUPPORTED_NAME_SYNTAX;
795     case RPC_S_UUID_NO_ADDRESS: return RPC_NT_UUID_NO_ADDRESS;
796     case RPC_S_DUPLICATE_ENDPOINT: return RPC_NT_DUPLICATE_ENDPOINT;
797     case RPC_S_UNKNOWN_AUTHN_TYPE: return RPC_NT_UNKNOWN_AUTHN_TYPE;
798     case RPC_S_MAX_CALLS_TOO_SMALL: return RPC_NT_MAX_CALLS_TOO_SMALL;
799     case RPC_S_STRING_TOO_LONG: return RPC_NT_STRING_TOO_LONG;
800     case RPC_S_PROTSEQ_NOT_FOUND: return RPC_NT_PROTSEQ_NOT_FOUND;
801     case RPC_S_PROCNUM_OUT_OF_RANGE: return RPC_NT_PROCNUM_OUT_OF_RANGE;
802     case RPC_S_BINDING_HAS_NO_AUTH: return RPC_NT_BINDING_HAS_NO_AUTH;
803     case RPC_S_UNKNOWN_AUTHN_SERVICE: return RPC_NT_UNKNOWN_AUTHN_SERVICE;
804     case RPC_S_UNKNOWN_AUTHN_LEVEL: return RPC_NT_UNKNOWN_AUTHN_LEVEL;
805     case RPC_S_INVALID_AUTH_IDENTITY: return RPC_NT_INVALID_AUTH_IDENTITY;
806     case RPC_S_UNKNOWN_AUTHZ_SERVICE: return RPC_NT_UNKNOWN_AUTHZ_SERVICE;
807     case EPT_S_INVALID_ENTRY: return EPT_NT_INVALID_ENTRY;
808     case EPT_S_CANT_PERFORM_OP: return EPT_NT_CANT_PERFORM_OP;
809     case EPT_S_NOT_REGISTERED: return EPT_NT_NOT_REGISTERED;
810     case EPT_S_CANT_CREATE: return EPT_NT_CANT_CREATE;
811     case RPC_S_NOTHING_TO_EXPORT: return RPC_NT_NOTHING_TO_EXPORT;
812     case RPC_S_INCOMPLETE_NAME: return RPC_NT_INCOMPLETE_NAME;
813     case RPC_S_INVALID_VERS_OPTION: return RPC_NT_INVALID_VERS_OPTION;
814     case RPC_S_NO_MORE_MEMBERS: return RPC_NT_NO_MORE_MEMBERS;
815     case RPC_S_NOT_ALL_OBJS_UNEXPORTED: return RPC_NT_NOT_ALL_OBJS_UNEXPORTED;
816     case RPC_S_INTERFACE_NOT_FOUND: return RPC_NT_INTERFACE_NOT_FOUND;
817     case RPC_S_ENTRY_ALREADY_EXISTS: return RPC_NT_ENTRY_ALREADY_EXISTS;
818     case RPC_S_ENTRY_NOT_FOUND: return RPC_NT_ENTRY_NOT_FOUND;
819     case RPC_S_NAME_SERVICE_UNAVAILABLE: return RPC_NT_NAME_SERVICE_UNAVAILABLE;
820     case RPC_S_INVALID_NAF_ID: return RPC_NT_INVALID_NAF_ID;
821     case RPC_S_CANNOT_SUPPORT: return RPC_NT_CANNOT_SUPPORT;
822     case RPC_S_NO_CONTEXT_AVAILABLE: return RPC_NT_NO_CONTEXT_AVAILABLE;
823     case RPC_S_INTERNAL_ERROR: return RPC_NT_INTERNAL_ERROR;
824     case RPC_S_ZERO_DIVIDE: return RPC_NT_ZERO_DIVIDE;
825     case RPC_S_ADDRESS_ERROR: return RPC_NT_ADDRESS_ERROR;
826     case RPC_S_FP_DIV_ZERO: return RPC_NT_FP_DIV_ZERO;
827     case RPC_S_FP_UNDERFLOW: return RPC_NT_FP_UNDERFLOW;
828     case RPC_S_FP_OVERFLOW: return RPC_NT_FP_OVERFLOW;
829     case RPC_S_CALL_IN_PROGRESS: return RPC_NT_CALL_IN_PROGRESS;
830     case RPC_S_NO_MORE_BINDINGS: return RPC_NT_NO_MORE_BINDINGS;
831     case RPC_S_CALL_CANCELLED: return RPC_NT_CALL_CANCELLED;
832     case RPC_S_INVALID_OBJECT: return RPC_NT_INVALID_OBJECT;
833     case RPC_S_INVALID_ASYNC_HANDLE: return RPC_NT_INVALID_ASYNC_HANDLE;
834     case RPC_S_INVALID_ASYNC_CALL: return RPC_NT_INVALID_ASYNC_CALL;
835     case RPC_S_GROUP_MEMBER_NOT_FOUND: return RPC_NT_GROUP_MEMBER_NOT_FOUND;
836     case RPC_X_NO_MORE_ENTRIES: return RPC_NT_NO_MORE_ENTRIES;
837     case RPC_X_SS_CHAR_TRANS_OPEN_FAIL: return RPC_NT_SS_CHAR_TRANS_OPEN_FAIL;
838     case RPC_X_SS_CHAR_TRANS_SHORT_FILE: return RPC_NT_SS_CHAR_TRANS_SHORT_FILE;
839     case RPC_X_SS_IN_NULL_CONTEXT: return RPC_NT_SS_IN_NULL_CONTEXT;
840     case RPC_X_SS_CONTEXT_DAMAGED: return RPC_NT_SS_CONTEXT_DAMAGED;
841     case RPC_X_SS_HANDLES_MISMATCH: return RPC_NT_SS_HANDLES_MISMATCH;
842     case RPC_X_SS_CANNOT_GET_CALL_HANDLE: return RPC_NT_SS_CANNOT_GET_CALL_HANDLE;
843     case RPC_X_NULL_REF_POINTER: return RPC_NT_NULL_REF_POINTER;
844     case RPC_X_ENUM_VALUE_OUT_OF_RANGE: return RPC_NT_ENUM_VALUE_OUT_OF_RANGE;
845     case RPC_X_BYTE_COUNT_TOO_SMALL: return RPC_NT_BYTE_COUNT_TOO_SMALL;
846     case RPC_X_BAD_STUB_DATA: return RPC_NT_BAD_STUB_DATA;
847     case RPC_X_PIPE_CLOSED: return RPC_NT_PIPE_CLOSED;
848     case RPC_X_PIPE_DISCIPLINE_ERROR: return RPC_NT_PIPE_DISCIPLINE_ERROR;
849     case RPC_X_PIPE_EMPTY: return RPC_NT_PIPE_EMPTY;
850     case ERROR_PASSWORD_MUST_CHANGE: return STATUS_PASSWORD_MUST_CHANGE;
851     case ERROR_ACCOUNT_LOCKED_OUT: return STATUS_ACCOUNT_LOCKED_OUT;
852     default: return status;
853     }
854 }
855 
856 /******************************************************************************
857  * RpcExceptionFilter     (rpcrt4.@)
858  * I_RpcExceptionFilter   (rpcrt4.@)
859  */
860 int WINAPI RpcExceptionFilter(ULONG ExceptionCode)
861 {
862     TRACE("0x%x\n", ExceptionCode);
863     switch (ExceptionCode)
864     {
865     case STATUS_DATATYPE_MISALIGNMENT:
866     case STATUS_BREAKPOINT:
867     case STATUS_ACCESS_VIOLATION:
868     case STATUS_ILLEGAL_INSTRUCTION:
869     case STATUS_PRIVILEGED_INSTRUCTION:
870     case STATUS_INSTRUCTION_MISALIGNMENT:
871     case STATUS_STACK_OVERFLOW:
872     case STATUS_POSSIBLE_DEADLOCK:
873         return EXCEPTION_CONTINUE_SEARCH;
874     default:
875         return EXCEPTION_EXECUTE_HANDLER;
876     }
877 }
878 
879 /******************************************************************************
880  * RpcErrorStartEnumeration   (rpcrt4.@)
881  */
882 RPC_STATUS RPC_ENTRY RpcErrorStartEnumeration(RPC_ERROR_ENUM_HANDLE* EnumHandle)
883 {
884     FIXME("(%p): stub\n", EnumHandle);
885     return RPC_S_ENTRY_NOT_FOUND;
886 }
887 
888 /******************************************************************************
889  * RpcErrorEndEnumeration   (rpcrt4.@)
890  */
891 RPC_STATUS RPC_ENTRY RpcErrorEndEnumeration(RPC_ERROR_ENUM_HANDLE* EnumHandle)
892 {
893     FIXME("(%p): stub\n", EnumHandle);
894     return RPC_S_OK;
895 }
896 
897 /******************************************************************************
898  * RpcErrorSaveErrorInfo   (rpcrt4.@)
899  */
900 RPC_STATUS RPC_ENTRY RpcErrorSaveErrorInfo(RPC_ERROR_ENUM_HANDLE *EnumHandle, void **ErrorBlob, SIZE_T *BlobSize)
901 {
902     FIXME("(%p %p %p): stub\n", EnumHandle, ErrorBlob, BlobSize);
903     return ERROR_CALL_NOT_IMPLEMENTED;
904 }
905 
906 /******************************************************************************
907  * RpcErrorLoadErrorInfo   (rpcrt4.@)
908  */
909 RPC_STATUS RPC_ENTRY RpcErrorLoadErrorInfo(void *ErrorBlob, SIZE_T BlobSize, RPC_ERROR_ENUM_HANDLE *EnumHandle)
910 {
911     FIXME("(%p %lu %p): stub\n", ErrorBlob, BlobSize, EnumHandle);
912     return ERROR_CALL_NOT_IMPLEMENTED;
913 }
914 
915 /******************************************************************************
916  * RpcErrorGetNextRecord   (rpcrt4.@)
917  */
918 RPC_STATUS RPC_ENTRY RpcErrorGetNextRecord(RPC_ERROR_ENUM_HANDLE *EnumHandle, BOOL CopyStrings, RPC_EXTENDED_ERROR_INFO *ErrorInfo)
919 {
920     FIXME("(%p %x %p): stub\n", EnumHandle, CopyStrings, ErrorInfo);
921     return RPC_S_ENTRY_NOT_FOUND;
922 }
923 
924 /******************************************************************************
925  * RpcMgmtSetCancelTimeout   (rpcrt4.@)
926  */
927 RPC_STATUS RPC_ENTRY RpcMgmtSetCancelTimeout(LONG Timeout)
928 {
929     FIXME("(%d): stub\n", Timeout);
930     return RPC_S_OK;
931 }
932 
933 static struct threaddata *get_or_create_threaddata(void)
934 {
935     struct threaddata *tdata = NtCurrentTeb()->ReservedForNtRpc;
936     if (!tdata)
937     {
938         tdata = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*tdata));
939         if (!tdata) return NULL;
940 
941         InitializeCriticalSection(&tdata->cs);
942         tdata->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": threaddata.cs");
943         tdata->thread_id = GetCurrentThreadId();
944 
945         EnterCriticalSection(&threaddata_cs);
946         list_add_tail(&threaddata_list, &tdata->entry);
947         LeaveCriticalSection(&threaddata_cs);
948 
949         NtCurrentTeb()->ReservedForNtRpc = tdata;
950         return tdata;
951     }
952     return tdata;
953 }
954 
955 void RPCRT4_SetThreadCurrentConnection(RpcConnection *Connection)
956 {
957     struct threaddata *tdata = get_or_create_threaddata();
958     if (!tdata) return;
959 
960     EnterCriticalSection(&tdata->cs);
961     tdata->connection = Connection;
962     LeaveCriticalSection(&tdata->cs);
963 }
964 
965 void RPCRT4_SetThreadCurrentCallHandle(RpcBinding *Binding)
966 {
967     struct threaddata *tdata = get_or_create_threaddata();
968     if (!tdata) return;
969 
970     tdata->server_binding = Binding;
971 }
972 
973 RpcBinding *RPCRT4_GetThreadCurrentCallHandle(void)
974 {
975     struct threaddata *tdata = get_or_create_threaddata();
976     if (!tdata) return NULL;
977 
978     return tdata->server_binding;
979 }
980 
981 void RPCRT4_PushThreadContextHandle(NDR_SCONTEXT SContext)
982 {
983     struct threaddata *tdata = get_or_create_threaddata();
984     struct context_handle_list *context_handle_list;
985 
986     if (!tdata) return;
987 
988     context_handle_list = HeapAlloc(GetProcessHeap(), 0, sizeof(*context_handle_list));
989     if (!context_handle_list) return;
990 
991     context_handle_list->context_handle = SContext;
992     context_handle_list->next = tdata->context_handle_list;
993     tdata->context_handle_list = context_handle_list;
994 }
995 
996 void RPCRT4_RemoveThreadContextHandle(NDR_SCONTEXT SContext)
997 {
998     struct threaddata *tdata = get_or_create_threaddata();
999     struct context_handle_list *current, *prev;
1000 
1001     if (!tdata) return;
1002 
1003     for (current = tdata->context_handle_list, prev = NULL; current; prev = current, current = current->next)
1004     {
1005         if (current->context_handle == SContext)
1006         {
1007             if (prev)
1008                 prev->next = current->next;
1009             else
1010                 tdata->context_handle_list = current->next;
1011             HeapFree(GetProcessHeap(), 0, current);
1012             return;
1013         }
1014     }
1015 }
1016 
1017 NDR_SCONTEXT RPCRT4_PopThreadContextHandle(void)
1018 {
1019     struct threaddata *tdata = get_or_create_threaddata();
1020     struct context_handle_list *context_handle_list;
1021     NDR_SCONTEXT context_handle;
1022 
1023     if (!tdata) return NULL;
1024 
1025     context_handle_list = tdata->context_handle_list;
1026     if (!context_handle_list) return NULL;
1027     tdata->context_handle_list = context_handle_list->next;
1028 
1029     context_handle = context_handle_list->context_handle;
1030     HeapFree(GetProcessHeap(), 0, context_handle_list);
1031     return context_handle;
1032 }
1033 
1034 static RPC_STATUS rpc_cancel_thread(DWORD target_tid)
1035 {
1036     struct threaddata *tdata;
1037 
1038     EnterCriticalSection(&threaddata_cs);
1039     LIST_FOR_EACH_ENTRY(tdata, &threaddata_list, struct threaddata, entry)
1040         if (tdata->thread_id == target_tid)
1041         {
1042             EnterCriticalSection(&tdata->cs);
1043             if (tdata->connection) rpcrt4_conn_cancel_call(tdata->connection);
1044             LeaveCriticalSection(&tdata->cs);
1045             break;
1046         }
1047     LeaveCriticalSection(&threaddata_cs);
1048 
1049     return RPC_S_OK;
1050 }
1051 
1052 /******************************************************************************
1053  * RpcCancelThread   (rpcrt4.@)
1054  */
1055 RPC_STATUS RPC_ENTRY RpcCancelThread(void* ThreadHandle)
1056 {
1057     TRACE("(%p)\n", ThreadHandle);
1058     return RpcCancelThreadEx(ThreadHandle, 0);
1059 }
1060 
1061 /******************************************************************************
1062  * RpcCancelThreadEx   (rpcrt4.@)
1063  */
1064 RPC_STATUS RPC_ENTRY RpcCancelThreadEx(void* ThreadHandle, LONG Timeout)
1065 {
1066     DWORD target_tid;
1067 
1068     FIXME("(%p, %d)\n", ThreadHandle, Timeout);
1069 
1070     target_tid = GetThreadId(ThreadHandle);
1071     if (!target_tid)
1072         return RPC_S_INVALID_ARG;
1073 
1074     if (Timeout)
1075     {
1076         FIXME("(%p, %d)\n", ThreadHandle, Timeout);
1077         return RPC_S_OK;
1078     }
1079     else
1080         return rpc_cancel_thread(target_tid);
1081 }
1082