1 kumpf 1.1 //%2006////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
6 // IBM Corp.; EMC Corporation, The Open Group.
7 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
9 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
11 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
13 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
15 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
20 //
21 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
22 kumpf 1.1 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
24 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 //%/////////////////////////////////////////////////////////////////////////////
33
34 #include <Pegasus/Common/System.h>
35 #include <Pegasus/Common/Signal.h>
36 #include <Pegasus/Common/AutoPtr.h>
37 #include <Service/PidFile.h>
38 #include <Service/ServerRunStatus.h>
39
40 #include <sys/types.h>
41 #include <sys/stat.h>
42
43 kumpf 1.1 #if defined(PEGASUS_OS_HPUX)
44 # include <sys/pstat.h>
45 # include <libgen.h>
46 #endif
47
48 #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)
49 # include <sys/ps.h>
50 #endif
51
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52 ouyang.jian 1.6 #if defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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53 kumpf 1.1 # include <procinfo.h>
54 # define PROCSIZE sizeof(struct procsinfo)
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55 dave.sudlik 1.6.4.1 # if PEGASUS_AIX_VERSION <= 5
56 // AIX version 5 does not define getprocs() in procinfo.h
57 extern "C"
58 {
59 extern int getprocs(
60 struct procsinfo *, int, struct fdsinfo *, int,pid_t *,int);
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61 kumpf 1.1 }
62 #endif
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63 dave.sudlik 1.6.4.1 #endif
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64 kumpf 1.1
65 PEGASUS_NAMESPACE_BEGIN
66
67 #ifdef PEGASUS_OS_TYPE_WINDOWS
68
69 //////////////////////////////////////
70 //
71 // Windows implementation
72 //
73 //////////////////////////////////////
74
75 ServerRunStatus::ServerRunStatus(
76 const char* serverName,
77 const char* pidFilePath)
78 : _serverName(serverName),
79 _pidFilePath(pidFilePath),
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80 kumpf 1.5 _isRunningServerInstance(false),
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81 kumpf 1.1 _parentPid(0),
82 _event(NULL),
83 _wasAlreadyRunning(false)
84 {
85 }
86
87 ServerRunStatus::~ServerRunStatus()
88 {
89 if (_event != NULL)
90 {
91 CloseHandle(_event);
92 }
93 }
94
95 Boolean ServerRunStatus::isServerRunning()
96 {
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97 dave.sudlik 1.3 return _wasAlreadyRunning;
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98 kumpf 1.1 }
99
100 void ServerRunStatus::setServerRunning()
101 {
102 if (_event == NULL)
103 {
104 _event = CreateEvent(NULL, TRUE, TRUE, _serverName);
105 if ((_event != NULL) && (GetLastError() != ERROR_ALREADY_EXISTS))
106 {
107 _wasAlreadyRunning = false;
108 }
109 }
110 }
111
112 void ServerRunStatus::setParentPid(PEGASUS_PID_T parentPid)
113 {
114 }
115
116 Boolean ServerRunStatus::kill()
117 {
118 return true;
119 kumpf 1.1 }
120
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121 carson.hovey 1.2 #elif defined(PEGASUS_OS_TYPE_UNIX) || defined(PEGASUS_OS_VMS)
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122 kumpf 1.1
123 //////////////////////////////////////
124 //
125 // Unix and OpenVMS implementation
126 //
127 //////////////////////////////////////
128
129 ServerRunStatus::ServerRunStatus(
130 const char* serverName,
131 const char* pidFilePath)
132 : _serverName(serverName),
133 _pidFilePath(pidFilePath),
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134 kumpf 1.5 _isRunningServerInstance(false),
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135 kumpf 1.1 _parentPid(0)
136 {
137 }
138
139 ServerRunStatus::~ServerRunStatus()
140 {
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141 kumpf 1.5 if (_isRunningServerInstance)
142 {
143 PidFile pidFile(_pidFilePath);
144 pidFile.remove();
145 }
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146 kumpf 1.1 }
147
148 Boolean ServerRunStatus::isServerRunning()
149 {
150 PidFile pidFile(_pidFilePath);
151 PEGASUS_PID_T pid = (PEGASUS_PID_T) pidFile.getPid();
152
153 if (pid == 0)
154 {
155 return false;
156 }
157
158 return (pid != (PEGASUS_PID_T) System::getPID()) &&
159 (pid != _parentPid) &&
160 _isServerProcess(pid);
161 }
162
163 void ServerRunStatus::setServerRunning()
164 {
165 PidFile pidFile(_pidFilePath);
166 pidFile.setPid(System::getPID());
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167 kumpf 1.5 _isRunningServerInstance = true;
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168 kumpf 1.1 }
169
170 void ServerRunStatus::setParentPid(PEGASUS_PID_T parentPid)
171 {
172 _parentPid = parentPid;
173 }
174
175 Boolean ServerRunStatus::kill()
176 {
177 PidFile pidFile(_pidFilePath);
178 PEGASUS_PID_T pid = (PEGASUS_PID_T) pidFile.getPid();
179
180 if ((pid == 0) ||
181 (pid == (PEGASUS_PID_T) System::getPID()) ||
182 (pid == _parentPid) ||
183 !_isServerProcess(pid))
184 {
185 pidFile.remove();
186 return false;
187 }
188
189 kumpf 1.1 #if defined(PEGASUS_OS_HPUX) || \
190 defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || \
191 defined(PEGASUS_OS_SOLARIS) || \
192 defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || \
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193 ouyang.jian 1.6 defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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194 kumpf 1.1
195 ::kill(pid, SIGKILL);
196
197 #endif
198
199 pidFile.remove();
200 return true;
201 }
202
203 # if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)
204
205 ///////////////////////////////////////////////////////
206 // z/OS implementation of _isServerProcess
207 ///////////////////////////////////////////////////////
208 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
209 {
210 W_PSPROC buf;
211 int token = 0;
212 memset(&buf, 0x00, sizeof(buf));
213 buf.ps_conttyptr =(char *) malloc(buf.ps_conttylen =PS_CONTTYBLEN);
214 buf.ps_pathptr =(char *) malloc(buf.ps_pathlen =PS_PATHBLEN);
215 kumpf 1.1 buf.ps_cmdptr =(char *) malloc(buf.ps_cmdlen =PS_CMDBLEN);
216 Boolean returnValue = false;
217
218 while ((token = w_getpsent(token, &buf, sizeof(buf))) > 0)
219 {
220 if (buf.ps_pid == pid)
221 {
222 // If the process id is associated with the server program,
223 // then a server is still running.
224 if (strstr(buf.ps_pathptr, _serverName) != NULL)
225 {
226 returnValue = true;
227 }
228 // else the pid was not associated with the server
229 break;
230 }
231 }
232
233 free(buf.ps_conttyptr);
234 free(buf.ps_pathptr);
235 free(buf.ps_cmdptr);
236 kumpf 1.1 return returnValue;
237 }
238
239 # elif defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || \
240 defined(PEGASUS_OS_SOLARIS)
241
242 ///////////////////////////////////////////////////////
243 // Linux and Solaris implementation of _isServerProcess
244 ///////////////////////////////////////////////////////
245 /*
246 Opens the 'stat' file in the /proc/<pid> directory to
247 verify that the process name is that of the server.
248 */
249 static Boolean _isServerPidDir(
250 const char *directory,
251 const char* serverProcessName)
252 {
253 static char filename[80];
254 static char buffer[512];
255 int fd, bytesRead;
256
257 kumpf 1.1 // generate the name of the stat file in the process's /proc directory,
258 // and open it
259 sprintf(filename, "%s/%s", directory, "stat");
260 if ( (fd = open(filename, O_RDONLY, 0)) == -1 )
261 {
262 return false;
263 }
264
265 // read the contents
266 if ( (bytesRead = read( fd, buffer, (sizeof buffer) - 1 )) <= 0 )
267 {
268 close(fd);
269 return false;
270 }
271
272 // null terminate the file contents
273 buffer[bytesRead] = 0;
274
275 close(fd);
276
277 // the process name is the second element of the file contents and
278 kumpf 1.1 // is surrounded by parentheses.
279 //
280 // find the positions of the parentheses in the file contents
281 const char* openParen;
282 const char* closeParen;
283
284 openParen = strchr(buffer, '(');
285 closeParen = strchr(buffer, ')');
286 if (openParen == NULL || closeParen == NULL || closeParen < openParen)
287 {
288 return false;
289 }
290
291 // allocate memory for the result
292 AutoArrayPtr<char> processName(new char[closeParen - openParen]);
293
294 // copy the process name into the result
295 strncpy(processName.get(), openParen + 1, closeParen - openParen -1);
296
297 // strncpy doesn't NULL-terminate the result, so do it here
298 processName[closeParen - openParen -1] = '\0';
299 kumpf 1.1
300 return strcmp(processName.get(), serverProcessName) == 0;
301 }
302
303 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
304 {
305 // This method makes a stat() system call on the directory in /proc
306 // with a name that matches the pid of the server. It returns true
307 // if it successfully located the process dir and verified that the
308 // process name matches that of the server.
309
310 static char path[32];
311 static struct stat statBuffer;
312
313 sprintf(path, "/proc/%d", pid);
314 if (stat(path, &statBuffer) == -1) // process stopped running
315 {
316 return false;
317 }
318
319 // get the process name to make sure it is the cimserver process
320 kumpf 1.1 // ATTN: skip verify for Solaris
321 # if !defined(PEGASUS_OS_SOLARIS)
322 if (!_isServerPidDir(path, _serverName))
323 {
324 return false;
325 }
326 # endif
327
328 return true;
329 }
330
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331 ouyang.jian 1.6 # elif defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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332 kumpf 1.1
333 ///////////////////////////////////////////////////////
334 // AIX implementation of _isServerProcess
335 ///////////////////////////////////////////////////////
336 /*
337 Calls subroutine getprocs() to get information about all processes.
338 If successful, an array of procsinfo structures filled with process table
339 entries is returned. Otherwise, a null pointer is returned.
340 The output parameter cnt specifies the number of the processes in the
341 returned table.
342 */
343 static struct procsinfo* _getProcessData(int& cnt)
344 {
345 struct procsinfo* proctable = NULL;
346 struct procsinfo* rtnp = NULL;
347 int count = 1048576;
348 int rtncnt;
349 int repeat = 1;
350 int nextp = 0;
351
352 cnt = 0;
353 kumpf 1.1 while (repeat &&
354 (rtncnt = getprocs(rtnp, PROCSIZE, 0, 0, &nextp, count) > 0))
355 {
356 if (!rtnp)
357 {
358 count=rtncnt;
359 proctable = (struct procsinfo*) malloc((size_t) PROCSIZE*count);
360 if (!proctable)
361 {
362 return NULL;
363 }
364 rtnp = proctable;
365 nextp = 0;
366 }
367 else
368 {
369 cnt += rtncnt;
370 if (rtncnt >= count)
371 {
372 proctable=(struct procsinfo *) realloc(
373 (void*)proctable, (size_t) (PROCSIZE*(cnt+count)));
374 kumpf 1.1 if (!proctable)
375 {
376 return NULL;
377 }
378 rtnp = proctable+(cnt);
379 }
380 else
381 {
382 repeat = 0;
383 }
384 } // end of if(!rtnp)
385 } //end of while
386 return proctable;
387 }
388
389 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
390 {
391 int count;
392 struct procsinfo* proctable;
393
394 proctable = _getProcessData(count);
395 kumpf 1.1 if (proctable == NULL)
396 {
397 return false;
398 }
399
400 for (int i=0; i < count; i++)
401 {
402 if (!strcmp(proctable[i].pi_comm, _serverName) && \
403 proctable[i].pi_pid == pid)
404 {
405 free(proctable);
406 return true;
407 }
408 }
409
410 free(proctable);
411 return false;
412 }
413
414 # elif defined(PEGASUS_OS_HPUX)
415
416 kumpf 1.1 ///////////////////////////////////////////////////////
417 // HP-UX implementation of _isServerProcess
418 ///////////////////////////////////////////////////////
419 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
420 {
421 struct pst_status pstru;
422
423 if (pstat_getproc(&pstru, sizeof(struct pst_status), (size_t)0, pid) != -1)
424 {
425 //
426 // Gets the command basename disregarding the command parameters
427 //
428 char *execName = strchr(pstru.pst_cmd,' ');
429 if (execName)
430 {
431 *execName = '\0';
432 }
433 execName = basename(pstru.pst_cmd);
434
435 if (strcmp(execName, _serverName) == 0)
436 {
437 kumpf 1.1 return true;
438 }
439 }
440
441 return false;
442 }
443
444 # else
445
446 ///////////////////////////////////////////////////////
447 // Generic implementation of _isServerProcess
448 ///////////////////////////////////////////////////////
449 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
450 {
451 return false;
452 }
453
454 # endif
455
456 #endif
457
458 kumpf 1.1 PEGASUS_NAMESPACE_END
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