1 kumpf 1.2 /*
2 //%2006////////////////////////////////////////////////////////////////////////
3 //
4 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
5 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
6 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
7 // IBM Corp.; EMC Corporation, The Open Group.
8 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
9 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
10 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
11 // EMC Corporation; VERITAS Software Corporation; The Open Group.
12 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
13 // EMC Corporation; Symantec Corporation; The Open Group.
14 //
15 // Permission is hereby granted, free of charge, to any person obtaining a copy
16 // of this software and associated documentation files (the "Software"), to
17 // deal in the Software without restriction, including without limitation the
18 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
19 // sell copies of the Software, and to permit persons to whom the Software is
20 // furnished to do so, subject to the following conditions:
21 //
22 kumpf 1.2 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
23 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
24 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
25 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
26 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
27 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 //
31 //%/////////////////////////////////////////////////////////////////////////////
32 */
33 #include <sys/time.h>
34 #include <sys/resource.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <errno.h>
38 #include <string.h>
39 #include <fcntl.h>
40 #include <sys/wait.h>
41 #include <unistd.h>
42 #include <signal.h>
43 kumpf 1.2 #include "Parent.h"
44 #include "Log.h"
45 #include "Messages.h"
46 #include "Socket.h"
47 #include "Fatal.h"
48 #include "Globals.h"
49 #include "Path.h"
50 #include "User.h"
51 #include "Exit.h"
52 #include "Strlcpy.h"
53 #include "LocalAuth.h"
54 #include "Strlcat.h"
55 #include "PasswordFile.h"
56 #include "Policy.h"
57 #include "Macro.h"
|
58 kumpf 1.10 #include "FileHandle.h"
|
59 kumpf 1.2
60 #if defined(PEGASUS_PAM_AUTHENTICATION)
61 # include "PAMAuth.h"
62 #endif
63
64 /*
65 **==============================================================================
66 **
67 ** _sigHandler()
68 **
69 ** Signal handler for SIGTERM.
70 **
71 **==============================================================================
72 */
73
74 static void _sigHandler(int signum)
75 {
|
76 mike 1.11.4.1 globals.signalMask |= (1UL << signum);
|
77 kumpf 1.2 }
78
79 /*
80 **==============================================================================
81 **
|
82 kumpf 1.4 ** ReadExecutorRequest()
83 **
84 ** Read a request of the specified size from the specified socket into the
85 ** buffer provided.
86 **
87 **==============================================================================
88 */
89
90 static void ReadExecutorRequest(int sock, void* buffer, size_t size)
91 {
92 if (RecvNonBlock(sock, buffer, size) != (ssize_t)size)
93 {
94 Fatal(FL, "Failed to read request");
95 }
96 }
97
98 /*
99 **==============================================================================
100 **
101 ** WriteExecutorResponse()
102 **
103 kumpf 1.4 ** Write a response of the specified size from the given buffer onto the
104 ** specified socket.
105 **
106 **==============================================================================
107 */
108
109 static void WriteExecutorResponse(int sock, const void* buffer, size_t size)
110 {
111 if (SendNonBlock(sock, buffer, size) != (ssize_t)size)
112 {
113 Fatal(FL, "Failed to write response");
114 }
115 }
116
117 /*
118 **==============================================================================
119 **
|
120 kumpf 1.2 ** HandlePingRequest()
121 **
122 ** Handle ping request.
123 **
124 **==============================================================================
125 */
126
127 static void HandlePingRequest(int sock)
128 {
129 struct ExecutorPingResponse response;
130
131 memset(&response, 0, sizeof(response));
132 response.magic = EXECUTOR_PING_MAGIC;
133
134 Log(LL_TRACE, "HandlePingRequest()");
135
|
136 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
137 kumpf 1.2 }
138
139 /*
140 **==============================================================================
141 **
142 ** HandleOpenFileRequest()
143 **
144 ** Handle a request from a child to open a file.
145 **
146 **==============================================================================
147 */
148
149 static void HandleOpenFileRequest(int sock)
150 {
151 struct ExecutorOpenFileRequest request;
152 struct ExecutorOpenFileResponse response;
153 int fd;
154
155 memset(&response, 0, sizeof(response));
156
157 /* Read the request message. */
158 kumpf 1.2
|
159 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
160 kumpf 1.2
161 /* Log the request. */
162
163 Log(LL_TRACE, "HandleOpenFileRequest(): path=\"%s\", mode='%c'",
164 request.path, request.mode);
165
166 /* Perform the operation. */
167
168 response.status = 0;
169 fd = -1;
170
171 do
172 {
173 /* Check the policy. */
174
|
175 kumpf 1.6 unsigned long permissions = 0;
176
177 if (CheckOpenFilePolicy(request.path, request.mode, &permissions) != 0)
|
178 kumpf 1.2 {
179 response.status = -1;
180 break;
181 }
182
183 /* Open file. */
184
185 switch (request.mode)
186 {
187 case 'r':
188 fd = open(request.path, O_RDONLY);
189 break;
190
191 case 'w':
192 fd = open(
193 request.path,
|
194 mike 1.11.4.1 O_WRONLY | O_TRUNC,
|
195 kumpf 1.6 permissions);
|
196 kumpf 1.2 break;
197
198 case 'a':
199 {
200 fd = open(
201 request.path,
|
202 mike 1.11.4.1 O_WRONLY | O_APPEND,
|
203 kumpf 1.6 permissions);
|
204 kumpf 1.2 break;
205 }
206 }
|
207 mike 1.11.4.1 /* If the open call fails with ENOENT errno,then create the file.
208 If the umask is set to a non default value,then the file will not
209 get created with permissions specified in the open system call.
210 So set the permissions for the file explicitly using fchmod.
211 */
|
212 kumpf 1.2 if (fd == -1)
|
213 mike 1.11.4.1 {
214 if (errno == ENOENT && (request.mode == 'w' || request.mode == 'a'))
215 {
216 fd = open(request.path,O_CREAT | O_WRONLY,permissions);
217 if (fchmod(fd,permissions) != 0)
218 {
219 response.status = -1;
220 close(fd);
221 }
222 }
223 else
224 {
225 response.status = -1;
226 }
227 }
|
228 kumpf 1.2 }
229 while (0);
230
231 /* Log failure. */
232
233 if (response.status != 0)
234 {
235 Log(LL_WARNING, "open(\"%s\", '%c') failed",
236 request.path, request.mode);
237 }
238
239 /* Send response. */
240
|
241 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
242 kumpf 1.2
243 /* Send descriptor to calling process (if any to send). */
244
245 if (response.status == 0)
246 {
247 int descriptors[1];
248 descriptors[0] = fd;
249 SendDescriptorArray(sock, descriptors, 1);
250 close(fd);
251 }
252 }
253
254 /*
255 **==============================================================================
256 **
257 ** HandleStartProviderAgentRequest()
258 **
259 **==============================================================================
260 */
261
262 static void HandleStartProviderAgentRequest(int sock)
263 kumpf 1.2 {
264 int status;
|
265 kumpf 1.3 int uid;
266 int gid;
|
267 kumpf 1.2 int pid;
268 int to[2];
269 int from[2];
270 struct ExecutorStartProviderAgentResponse response;
271 struct ExecutorStartProviderAgentRequest request;
272
273 memset(&response, 0, sizeof(response));
274
275 /* Read request. */
276
|
277 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
278 kumpf 1.2
279 /* Log request. */
280
281 Log(LL_TRACE, "HandleStartProviderAgentRequest(): "
|
282 kumpf 1.3 "module=%s userName=%s", request.module, request.userName);
|
283 kumpf 1.2
284 /* Process request. */
285
286 status = 0;
287 pid = -1;
288
289 do
290 {
291 /* Resolve full path of CIMPROVAGT. */
292
293 const char* path;
294
295 if ((path = FindMacro("cimprovagtPath")) == NULL)
296 Fatal(FL, "Failed to locate %s program", CIMPROVAGT);
297
|
298 kumpf 1.3 #if !defined(PEGASUS_DISABLE_PROV_USERCTXT)
299
300 /* Look up the user ID and group ID of the specified user. */
301
302 if (GetUserInfo(request.userName, &uid, &gid) != 0)
303 {
304 status = -1;
305 break;
306 }
307
308 Log(LL_TRACE, "cimprovagt user context: "
309 "userName=%s uid=%d gid=%d", request.userName, uid, gid);
310
311 #endif /* !defined(PEGASUS_DISABLE_PROV_USERCTXT) */
312
|
313 kumpf 1.2 /* Create "to-agent" pipe: */
314
315 if (pipe(to) != 0)
316 {
317 status = -1;
318 break;
319 }
320
321 /* Create "from-agent" pipe: */
322
323 if (pipe(from) != 0)
324 {
325 status = -1;
326 break;
327 }
328
329 /* Fork process: */
330
331 pid = fork();
332
333 if (pid < 0)
334 kumpf 1.2 {
335 Log(LL_SEVERE, "fork failed");
336 status = -1;
337 break;
338 }
339
340 /* If child: */
341
342 if (pid == 0)
343 {
|
344 kumpf 1.11 char toPipeArg[32];
345 char fromPipeArg[32];
346 /* The user context is set here; no need to do it in cimprovagt. */
347 const char* setUserContextFlag = "0";
|
348 kumpf 1.2
349 /* Close unused pipe descriptors: */
350
351 close(to[1]);
352 close(from[0]);
353
|
354 kumpf 1.10 /* Redirect terminal I/O if required and not yet daemonized. */
355
356 if (globals.initCompletePipe != -1 && !globals.bindVerbose)
357 {
358 RedirectTerminalIO();
359 }
360
|
361 kumpf 1.2 /*
362 * Close unused descriptors. Leave stdin, stdout, stderr, and the
363 * child's pipe descriptors open.
364 */
365
|
366 kumpf 1.10 CloseUnusedDescriptors(to[0], from[1]);
|
367 kumpf 1.2
|
368 kumpf 1.3 #if !defined(PEGASUS_DISABLE_PROV_USERCTXT)
369
|
370 kumpf 1.10 SetUserContext(request.userName, uid, gid);
|
371 kumpf 1.2
372 Log(LL_TRACE, "starting %s on module %s as user %s",
|
373 kumpf 1.3 path, request.module, request.userName);
|
374 kumpf 1.2
|
375 kumpf 1.3 #endif /* !defined(PEGASUS_DISABLE_PROV_USERCTXT) */
|
376 kumpf 1.2
377 /* Exec the CIMPROVAGT program. */
378
|
379 kumpf 1.11 sprintf(toPipeArg, "%d", to[0]);
380 sprintf(fromPipeArg, "%d", from[1]);
|
381 kumpf 1.2
|
382 kumpf 1.11 Log(LL_TRACE, "execl(%s, %s, %s, %s, %s, %s, %s)\n",
383 path,
384 path,
385 setUserContextFlag,
386 toPipeArg,
387 fromPipeArg,
388 request.userName,
389 request.module);
|
390 kumpf 1.2
391 /* Flawfinder: ignore */
|
392 kumpf 1.11 execl(
393 path,
394 path,
395 setUserContextFlag,
396 toPipeArg,
397 fromPipeArg,
398 request.userName,
399 request.module,
400 (char*)0);
401
402 Log(LL_SEVERE, "execl(%s, %s, %s, %s, %s, %s, %s): failed\n",
403 path,
404 path,
405 setUserContextFlag,
406 toPipeArg,
407 fromPipeArg,
408 request.userName,
409 request.module);
|
410 kumpf 1.5 _exit(1);
|
411 kumpf 1.2 }
412 }
413 while (0);
414
415 /* Close unused pipe descriptors. */
416
417 close(to[0]);
418 close(from[1]);
419
420 /* Send response. */
421
422 response.status = status;
423 response.pid = pid;
424
|
425 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
426 kumpf 1.2
427 /* Send descriptors to calling process. */
428
429 if (response.status == 0)
430 {
431 int descriptors[2];
432 descriptors[0] = from[0];
433 descriptors[1] = to[1];
434
435 SendDescriptorArray(sock, descriptors, 2);
436 close(from[0]);
437 close(to[1]);
438 }
439 }
440
441 /*
442 **==============================================================================
443 **
444 ** HandleDaemonizeExecutorRequest()
445 **
446 **==============================================================================
447 kumpf 1.2 */
448
|
449 kumpf 1.10 static void HandleDaemonizeExecutorRequest(int sock)
|
450 kumpf 1.2 {
451 struct ExecutorDaemonizeExecutorResponse response;
452
453 memset(&response, 0, sizeof(response));
454
455 Log(LL_TRACE, "HandleDaemonizeExecutorRequest()");
456
|
457 kumpf 1.10 if (!globals.bindVerbose)
|
458 kumpf 1.2 {
|
459 kumpf 1.10 RedirectTerminalIO();
|
460 kumpf 1.2 }
461
|
462 kumpf 1.10 if (globals.initCompletePipe != -1)
|
463 kumpf 1.2 {
|
464 kumpf 1.10 ssize_t result;
|
465 kumpf 1.2
|
466 kumpf 1.10 EXECUTOR_RESTART(write(globals.initCompletePipe, "\0", 1), result);
467 close(globals.initCompletePipe);
468 globals.initCompletePipe = -1;
|
469 kumpf 1.2 }
470
471 response.status = 0;
472
|
473 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
474 kumpf 1.2 }
475
476 /*
477 **==============================================================================
478 **
479 ** HandleRenameFileRequest()
480 **
481 **==============================================================================
482 */
483
484 static void HandleRenameFileRequest(int sock)
485 {
486 struct ExecutorRenameFileResponse response;
487 struct ExecutorRenameFileRequest request;
488
489 memset(&response, 0, sizeof(response));
490
491 /* Read the request message. */
492
|
493 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
494 kumpf 1.2
495 /* Log request. */
496
497 Log(LL_TRACE, "HandleRenameFileRequest(): oldPath=%s newPath=%s",
498 request.oldPath, request.newPath);
499
500 /* Perform the operation: */
501
502 response.status = 0;
503
504 do
505 {
506 /* Check the policy. */
507
508 if (CheckRenameFilePolicy(request.oldPath, request.newPath) != 0)
509 {
510 response.status = -1;
511 break;
512 }
513
514 /* Rename the file. */
515 kumpf 1.2
516 if (rename(request.oldPath, request.newPath) != 0)
517 {
518 response.status = -1;
519 break;
520 }
521 }
522 while (0);
523
524 /* Send response message. */
525
|
526 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
527 kumpf 1.2 }
528
529 /*
530 **==============================================================================
531 **
532 ** HandleRemoveFileRequest()
533 **
534 **==============================================================================
535 */
536
537 static void HandleRemoveFileRequest(int sock)
538 {
539 struct ExecutorRemoveFileRequest request;
540 struct ExecutorRemoveFileResponse response;
541
542 memset(&response, 0, sizeof(response));
543
544 /* Read the request message. */
545
|
546 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
547 kumpf 1.2
548 /* Log request. */
549
550 Log(LL_TRACE, "HandleRemoveFileRequest(): path=%s", request.path);
551
552 response.status = 0;
553
554 do
555 {
556 /* Check the policy. */
557
558 if (CheckRemoveFilePolicy(request.path) != 0)
559 {
560 response.status = -1;
561 break;
562 }
563
564 /* Remove the file. */
565
566 if (unlink(request.path) != 0)
567 {
568 kumpf 1.2 response.status = -1;
569 Log(LL_WARNING, "unlink(%s) failed", request.path);
570 break;
571 }
572 }
573 while (0);
574
575 /* Send response message. */
576
|
577 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
578 kumpf 1.2 }
579
580 /*
581 **==============================================================================
582 **
583 ** HandleAuthenticatePasswordRequest()
584 **
585 **==============================================================================
586 */
587
588 static void HandleAuthenticatePasswordRequest(int sock)
589 {
590 int status;
591 struct ExecutorAuthenticatePasswordRequest request;
592 struct ExecutorAuthenticatePasswordResponse response;
593 int gid;
594 int uid;
595
596 memset(&response, 0, sizeof(response));
597
598 /* Read the request message. */
599 kumpf 1.2
|
600 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
601 kumpf 1.2
602 /* Log request. */
603
604 Log(LL_TRACE, "HandleAuthenticatePasswordRequest(): username=%s",
605 request.username);
606
607 /* Perform the operation: */
608
609 status = 0;
610
611 do
612 {
613 if (GetUserInfo(request.username, &uid, &gid) != 0)
614 {
615 status = -1;
616 break;
617 }
618
619 #if defined(PEGASUS_PAM_AUTHENTICATION)
620
621 if (PAMAuthenticate(request.username, request.password) != 0)
622 kumpf 1.2 {
623 status = -1;
624 break;
625 }
626
627
628 #else /* !PEGASUS_PAM_AUTHENTICATION */
629
630 {
631 const char* path = FindMacro("passwordFilePath");
632
633 if (!path)
634 {
635 status = -1;
636 break;
637 }
638
639 if (CheckPasswordFile(
640 path, request.username, request.password) != 0)
641 {
642 status = -1;
643 kumpf 1.2 break;
644 }
645 }
646
647 #endif /* !PEGASUS_PAM_AUTHENTICATION */
648 }
649 while (0);
650
|
651 sushma.fernandes 1.9 Log(LL_TRACE, "Basic authentication attempt: username = %s, "
652 "successful = %s",
653 request.username, status == 0 ? "TRUE" : "FALSE" );
|
654 kumpf 1.2
655 /* Send response message. */
656
657 response.status = status;
658
|
659 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
660 kumpf 1.2 }
661
662 /*
663 **==============================================================================
664 **
665 ** HandleValidateUserRequest()
666 **
667 **==============================================================================
668 */
669
670 static void HandleValidateUserRequest(int sock)
671 {
672 int status;
673 struct ExecutorValidateUserResponse response;
674 struct ExecutorValidateUserRequest request;
675
676 memset(&response, 0, sizeof(response));
677
678 /* Read the request message. */
679
|
680 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
681 kumpf 1.2
682 /* Validate the user. */
683
684 Log(LL_TRACE,
685 "HandleValidateUserRequest(): username=%s", request.username);
686
687 /* Get the uid for the username. */
688
689 status = 0;
690
691 #if defined(PEGASUS_PAM_AUTHENTICATION)
692
693 if (PAMValidateUser(request.username) != 0)
694 status = -1;
695
696 #else /* !PEGASUS_PAM_AUTHENTICATION */
697
698 do
699 {
700 const char* path = FindMacro("passwordFilePath");
701
702 kumpf 1.2 if (!path)
703 {
704 status = -1;
705 break;
706 }
707
708 if (CheckPasswordFile(path, request.username, NULL) != 0)
709 {
710 status = -1;
711 break;
712 }
713 }
714 while (0);
715
716 #endif /* !PEGASUS_PAM_AUTHENTICATION */
717
718 /* Send response message. */
719
720 response.status = status;
721
|
722 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
723 kumpf 1.2 }
724
725 /*
726 **==============================================================================
727 **
728 ** HandleChallengeLocalRequest()
729 **
730 **==============================================================================
731 */
732
733 static void HandleChallengeLocalRequest(int sock)
734 {
735 char challenge[EXECUTOR_BUFFER_SIZE];
736 struct ExecutorChallengeLocalRequest request;
737 struct ExecutorChallengeLocalResponse response;
738
739 memset(&response, 0, sizeof(response));
740
741 /* Read the request message. */
742
|
743 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
744 kumpf 1.2
745 Log(LL_TRACE, "HandleChallengeLocalRequest(): user=%s", request.user);
746
747 /* Perform operation. */
748
|
749 kumpf 1.4 response.status = StartLocalAuthentication(request.user, challenge);
|
750 kumpf 1.2
|
751 kumpf 1.4 /* Send response message. */
752
|
753 sushma.fernandes 1.9 if (response.status == 0)
|
754 kumpf 1.4 {
|
755 kumpf 1.2 Strlcpy(response.challenge, challenge, sizeof(response.challenge));
|
756 kumpf 1.4 }
|
757 kumpf 1.2
|
758 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
759 kumpf 1.2 }
760
761 /*
762 **==============================================================================
763 **
764 ** HandleAuthenticateLocalRequest()
765 **
766 **==============================================================================
767 */
768
769 static void HandleAuthenticateLocalRequest(int sock)
770 {
771 int status;
772 struct ExecutorAuthenticateLocalRequest request;
773 struct ExecutorAuthenticateLocalResponse response;
774
775 memset(&response, 0, sizeof(response));
776
777 /* Read the request message. */
778
|
779 kumpf 1.4 ReadExecutorRequest(sock, &request, sizeof(request));
|
780 kumpf 1.2
781 Log(LL_TRACE, "HandleAuthenticateLocalRequest()");
782
783 /* Perform operation. */
784
785 status = FinishLocalAuthentication(request.challenge, request.response);
786
787 /* Send response. */
788
789 response.status = status;
790
|
791 kumpf 1.4 WriteExecutorResponse(sock, &response, sizeof(response));
|
792 kumpf 1.2 }
793
794 /*
795 **==============================================================================
796 **
|
797 kumpf 1.5 ** HandleUpdateLogLevelRequest()
798 **
799 **==============================================================================
800 */
801
802 static void HandleUpdateLogLevelRequest(int sock)
803 {
804 int status;
805 struct ExecutorUpdateLogLevelRequest request;
806 struct ExecutorUpdateLogLevelResponse response;
807
808 memset(&response, 0, sizeof(response));
809
810 /* Read the request message. */
811
812 ReadExecutorRequest(sock, &request, sizeof(request));
813
814 /* Log request. */
815
816 Log(LL_TRACE, "HandleUpdateLogLevelRequest(): logLevel=%s",
817 request.logLevel);
818 kumpf 1.5
819 /* Perform operation. */
820
821 status = SetLogLevel(request.logLevel);
822
823 if (status == -1)
824 Log(LL_WARNING, "SetLogLevel(%d) failed", request.logLevel);
825
826 /* Send response message. */
827
828 response.status = status;
829
830 WriteExecutorResponse(sock, &response, sizeof(response));
831 }
832
833 /*
834 **==============================================================================
835 **
|
836 kumpf 1.2 ** Parent()
837 **
838 ** The parent process (cimserver).
839 **
840 **==============================================================================
841 */
842
|
843 kumpf 1.10 void Parent(int sock, int initCompletePipe, int childPid, int bindVerbose)
|
844 kumpf 1.2 {
845 /* Handle Ctrl-C. */
846
847 signal(SIGINT, _sigHandler);
848
849 /* Catch SIGTERM, sent by kill program. */
850
851 signal(SIGTERM, _sigHandler);
852
853 /*
854 * Ignore SIGPIPE, which occurs if a child with whom the executor shares
855 * a local domain socket unexpectedly dies. In such a case, the socket
856 * read/write functions will return an error. There are two child processes
857 * the executor talks to over sockets: CIMSERVERA and CIMSERVERMAIN.
858 */
859
860 signal(SIGPIPE, SIG_IGN);
861
862 /* Save child PID globally; it is used by Exit() function. */
863
864 globals.childPid = childPid;
865 kumpf 1.2
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866 kumpf 1.10 /* Save initCompletePipe; it is used at daemonization. */
867
868 globals.initCompletePipe = initCompletePipe;
869
870 /* Save bindVerbose; it is used at daemonization and cimprovagt start. */
871
872 globals.bindVerbose = bindVerbose;
873
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874 kumpf 1.2 /* Prepares socket into non-blocking I/O. */
875
876 SetNonBlocking(sock);
877
878 /* Process client requests until client exists. */
879
880 for (;;)
881 {
882 size_t n;
883 struct ExecutorRequestHeader header;
884
885 /* Receive request header. */
886
887 n = RecvNonBlock(sock, &header, sizeof(header));
888
889 if (n == 0)
890 {
891 /*
892 * Either client closed its end of the pipe (possibly by exiting)
893 * or we caught a SIGTERM.
894 */
895 kumpf 1.2 break;
896 }
897
898 if (n != sizeof(header))
899 Fatal(FL, "Failed to read header");
900
901 /* Dispatch request. */
902
903 switch ((enum ExecutorMessageCode)header.code)
904 {
905 case EXECUTOR_PING_MESSAGE:
906 HandlePingRequest(sock);
907 break;
908
909 case EXECUTOR_OPEN_FILE_MESSAGE:
910 HandleOpenFileRequest(sock);
911 break;
912
913 case EXECUTOR_START_PROVIDER_AGENT_MESSAGE:
914 HandleStartProviderAgentRequest(sock);
915 break;
916 kumpf 1.2
917 case EXECUTOR_DAEMONIZE_EXECUTOR_MESSAGE:
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918 kumpf 1.10 HandleDaemonizeExecutorRequest(sock);
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919 kumpf 1.2 break;
920
921 case EXECUTOR_RENAME_FILE_MESSAGE:
922 HandleRenameFileRequest(sock);
923 break;
924
925 case EXECUTOR_REMOVE_FILE_MESSAGE:
926 HandleRemoveFileRequest(sock);
927 break;
928
929 case EXECUTOR_AUTHENTICATE_PASSWORD_MESSAGE:
930 HandleAuthenticatePasswordRequest(sock);
931 break;
932
933 case EXECUTOR_VALIDATE_USER_MESSAGE:
934 HandleValidateUserRequest(sock);
935 break;
936
937 case EXECUTOR_CHALLENGE_LOCAL_MESSAGE:
938 HandleChallengeLocalRequest(sock);
939 break;
940 kumpf 1.2
941 case EXECUTOR_AUTHENTICATE_LOCAL_MESSAGE:
942 HandleAuthenticateLocalRequest(sock);
943 break;
944
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945 kumpf 1.5 case EXECUTOR_UPDATE_LOG_LEVEL_MESSAGE:
946 HandleUpdateLogLevelRequest(sock);
947 break;
948
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949 kumpf 1.2 default:
950 Fatal(FL, "Invalid request code: %d", header.code);
951 break;
952 }
953 }
954
955 /* Reached due to socket EOF, SIGTERM, or SIGINT. */
956
957 Exit(0);
958 }
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