1 martin 1.9 //%LICENSE////////////////////////////////////////////////////////////////
2 //
3 // Licensed to The Open Group (TOG) under one or more contributor license
4 // agreements. Refer to the OpenPegasusNOTICE.txt file distributed with
5 // this work for additional information regarding copyright ownership.
6 // Each contributor licenses this file to you under the OpenPegasus Open
7 // Source License; you may not use this file except in compliance with the
8 // License.
9 //
10 // Permission is hereby granted, free of charge, to any person obtaining a
11 // copy of this software and associated documentation files (the "Software"),
12 // to deal in the Software without restriction, including without limitation
13 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 // and/or sell copies of the Software, and to permit persons to whom the
15 // Software is furnished to do so, subject to the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be included
18 // in all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 martin 1.9 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
24 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27 kumpf 1.1 //
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28 martin 1.9 //////////////////////////////////////////////////////////////////////////
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29 kumpf 1.1 //
30 //%/////////////////////////////////////////////////////////////////////////////
31
32 #include <Pegasus/Common/System.h>
33 #include <Pegasus/Common/Signal.h>
34 #include <Pegasus/Common/AutoPtr.h>
35 #include <Service/PidFile.h>
36 #include <Service/ServerRunStatus.h>
37
38 #include <sys/types.h>
39 #include <sys/stat.h>
40
41 #if defined(PEGASUS_OS_HPUX)
42 # include <sys/pstat.h>
43 # include <libgen.h>
44 #endif
45
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46 r.kieninger 1.8 #if defined(PEGASUS_OS_ZOS)
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47 kumpf 1.1 # include <sys/ps.h>
48 #endif
49
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50 ouyang.jian 1.6 #if defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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51 dave.sudlik 1.7 # include <procinfo.h>
52 # define PROCSIZE sizeof(struct procsinfo)
53 # if PEGASUS_AIX_VERSION <= 5
54 // AIX version 5 does not define getprocs() in procinfo.h
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55 kumpf 1.1 extern "C"
56 {
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57 dave.sudlik 1.7 extern int getprocs(
58 struct procsinfo *, int, struct fdsinfo *, int,pid_t *,int);
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59 kumpf 1.1 }
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60 dave.sudlik 1.7 # endif
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61 kumpf 1.1 #endif
62
63 PEGASUS_NAMESPACE_BEGIN
64
65 #ifdef PEGASUS_OS_TYPE_WINDOWS
66
67 //////////////////////////////////////
68 //
69 // Windows implementation
70 //
71 //////////////////////////////////////
72
73 ServerRunStatus::ServerRunStatus(
74 const char* serverName,
75 const char* pidFilePath)
76 : _serverName(serverName),
77 _pidFilePath(pidFilePath),
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78 kumpf 1.5 _isRunningServerInstance(false),
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79 kumpf 1.1 _parentPid(0),
80 _event(NULL),
81 _wasAlreadyRunning(false)
82 {
83 }
84
85 ServerRunStatus::~ServerRunStatus()
86 {
87 if (_event != NULL)
88 {
89 CloseHandle(_event);
90 }
91 }
92
93 Boolean ServerRunStatus::isServerRunning()
94 {
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95 dave.sudlik 1.3 return _wasAlreadyRunning;
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96 kumpf 1.1 }
97
98 void ServerRunStatus::setServerRunning()
99 {
100 if (_event == NULL)
101 {
102 _event = CreateEvent(NULL, TRUE, TRUE, _serverName);
103 if ((_event != NULL) && (GetLastError() != ERROR_ALREADY_EXISTS))
104 {
105 _wasAlreadyRunning = false;
106 }
107 }
108 }
109
110 void ServerRunStatus::setParentPid(PEGASUS_PID_T parentPid)
111 {
112 }
113
114 Boolean ServerRunStatus::kill()
115 {
116 return true;
117 kumpf 1.1 }
118
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119 carson.hovey 1.2 #elif defined(PEGASUS_OS_TYPE_UNIX) || defined(PEGASUS_OS_VMS)
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120 kumpf 1.1
121 //////////////////////////////////////
122 //
123 // Unix and OpenVMS implementation
124 //
125 //////////////////////////////////////
126
127 ServerRunStatus::ServerRunStatus(
128 const char* serverName,
129 const char* pidFilePath)
130 : _serverName(serverName),
131 _pidFilePath(pidFilePath),
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132 kumpf 1.5 _isRunningServerInstance(false),
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133 kumpf 1.1 _parentPid(0)
134 {
135 }
136
137 ServerRunStatus::~ServerRunStatus()
138 {
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139 kumpf 1.5 if (_isRunningServerInstance)
140 {
141 PidFile pidFile(_pidFilePath);
142 pidFile.remove();
143 }
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144 kumpf 1.1 }
145
146 Boolean ServerRunStatus::isServerRunning()
147 {
148 PidFile pidFile(_pidFilePath);
149 PEGASUS_PID_T pid = (PEGASUS_PID_T) pidFile.getPid();
150
151 if (pid == 0)
152 {
153 return false;
154 }
155
156 return (pid != (PEGASUS_PID_T) System::getPID()) &&
157 (pid != _parentPid) &&
158 _isServerProcess(pid);
159 }
160
161 void ServerRunStatus::setServerRunning()
162 {
163 PidFile pidFile(_pidFilePath);
164 pidFile.setPid(System::getPID());
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165 kumpf 1.5 _isRunningServerInstance = true;
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166 kumpf 1.1 }
167
168 void ServerRunStatus::setParentPid(PEGASUS_PID_T parentPid)
169 {
170 _parentPid = parentPid;
171 }
172
173 Boolean ServerRunStatus::kill()
174 {
175 PidFile pidFile(_pidFilePath);
176 PEGASUS_PID_T pid = (PEGASUS_PID_T) pidFile.getPid();
177
178 if ((pid == 0) ||
179 (pid == (PEGASUS_PID_T) System::getPID()) ||
180 (pid == _parentPid) ||
181 !_isServerProcess(pid))
182 {
183 pidFile.remove();
184 return false;
185 }
186
187 kumpf 1.1 #if defined(PEGASUS_OS_HPUX) || \
188 defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || \
189 defined(PEGASUS_OS_SOLARIS) || \
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190 r.kieninger 1.8 defined(PEGASUS_OS_ZOS) || \
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191 ouyang.jian 1.6 defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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192 kumpf 1.1
193 ::kill(pid, SIGKILL);
194
195 #endif
196
197 pidFile.remove();
198 return true;
199 }
200
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201 r.kieninger 1.8 # if defined(PEGASUS_OS_ZOS)
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202 kumpf 1.1
203 ///////////////////////////////////////////////////////
204 // z/OS implementation of _isServerProcess
205 ///////////////////////////////////////////////////////
206 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
207 {
208 W_PSPROC buf;
209 int token = 0;
210 memset(&buf, 0x00, sizeof(buf));
211 buf.ps_conttyptr =(char *) malloc(buf.ps_conttylen =PS_CONTTYBLEN);
212 buf.ps_pathptr =(char *) malloc(buf.ps_pathlen =PS_PATHBLEN);
213 buf.ps_cmdptr =(char *) malloc(buf.ps_cmdlen =PS_CMDBLEN);
214 Boolean returnValue = false;
215
216 while ((token = w_getpsent(token, &buf, sizeof(buf))) > 0)
217 {
218 if (buf.ps_pid == pid)
219 {
220 // If the process id is associated with the server program,
221 // then a server is still running.
222 if (strstr(buf.ps_pathptr, _serverName) != NULL)
223 kumpf 1.1 {
224 returnValue = true;
225 }
226 // else the pid was not associated with the server
227 break;
228 }
229 }
230
231 free(buf.ps_conttyptr);
232 free(buf.ps_pathptr);
233 free(buf.ps_cmdptr);
234 return returnValue;
235 }
236
237 # elif defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || \
238 defined(PEGASUS_OS_SOLARIS)
239
240 ///////////////////////////////////////////////////////
241 // Linux and Solaris implementation of _isServerProcess
242 ///////////////////////////////////////////////////////
243 /*
244 kumpf 1.1 Opens the 'stat' file in the /proc/<pid> directory to
245 verify that the process name is that of the server.
246 */
247 static Boolean _isServerPidDir(
248 const char *directory,
249 const char* serverProcessName)
250 {
251 static char filename[80];
252 static char buffer[512];
253 int fd, bytesRead;
254
255 // generate the name of the stat file in the process's /proc directory,
256 // and open it
257 sprintf(filename, "%s/%s", directory, "stat");
258 if ( (fd = open(filename, O_RDONLY, 0)) == -1 )
259 {
260 return false;
261 }
262
263 // read the contents
264 if ( (bytesRead = read( fd, buffer, (sizeof buffer) - 1 )) <= 0 )
265 kumpf 1.1 {
266 close(fd);
267 return false;
268 }
269
270 // null terminate the file contents
271 buffer[bytesRead] = 0;
272
273 close(fd);
274
275 // the process name is the second element of the file contents and
276 // is surrounded by parentheses.
277 //
278 // find the positions of the parentheses in the file contents
279 const char* openParen;
280 const char* closeParen;
281
282 openParen = strchr(buffer, '(');
283 closeParen = strchr(buffer, ')');
284 if (openParen == NULL || closeParen == NULL || closeParen < openParen)
285 {
286 kumpf 1.1 return false;
287 }
288
289 // allocate memory for the result
290 AutoArrayPtr<char> processName(new char[closeParen - openParen]);
291
292 // copy the process name into the result
293 strncpy(processName.get(), openParen + 1, closeParen - openParen -1);
294
295 // strncpy doesn't NULL-terminate the result, so do it here
296 processName[closeParen - openParen -1] = '\0';
297
298 return strcmp(processName.get(), serverProcessName) == 0;
299 }
300
301 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
302 {
303 // This method makes a stat() system call on the directory in /proc
304 // with a name that matches the pid of the server. It returns true
305 // if it successfully located the process dir and verified that the
306 // process name matches that of the server.
307 kumpf 1.1
308 static char path[32];
309 static struct stat statBuffer;
310
311 sprintf(path, "/proc/%d", pid);
312 if (stat(path, &statBuffer) == -1) // process stopped running
313 {
314 return false;
315 }
316
317 // get the process name to make sure it is the cimserver process
318 // ATTN: skip verify for Solaris
319 # if !defined(PEGASUS_OS_SOLARIS)
320 if (!_isServerPidDir(path, _serverName))
321 {
322 return false;
323 }
324 # endif
325
326 return true;
327 }
328 kumpf 1.1
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329 ouyang.jian 1.6 # elif defined(PEGASUS_OS_AIX) || defined(PEGASUS_OS_PASE)
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330 kumpf 1.1
331 ///////////////////////////////////////////////////////
332 // AIX implementation of _isServerProcess
333 ///////////////////////////////////////////////////////
334 /*
335 Calls subroutine getprocs() to get information about all processes.
336 If successful, an array of procsinfo structures filled with process table
337 entries is returned. Otherwise, a null pointer is returned.
338 The output parameter cnt specifies the number of the processes in the
339 returned table.
340 */
341 static struct procsinfo* _getProcessData(int& cnt)
342 {
343 struct procsinfo* proctable = NULL;
344 struct procsinfo* rtnp = NULL;
345 int count = 1048576;
346 int rtncnt;
347 int repeat = 1;
348 int nextp = 0;
349
350 cnt = 0;
351 kumpf 1.1 while (repeat &&
352 (rtncnt = getprocs(rtnp, PROCSIZE, 0, 0, &nextp, count) > 0))
353 {
354 if (!rtnp)
355 {
356 count=rtncnt;
357 proctable = (struct procsinfo*) malloc((size_t) PROCSIZE*count);
358 if (!proctable)
359 {
360 return NULL;
361 }
362 rtnp = proctable;
363 nextp = 0;
364 }
365 else
366 {
367 cnt += rtncnt;
368 if (rtncnt >= count)
369 {
370 proctable=(struct procsinfo *) realloc(
371 (void*)proctable, (size_t) (PROCSIZE*(cnt+count)));
372 kumpf 1.1 if (!proctable)
373 {
374 return NULL;
375 }
376 rtnp = proctable+(cnt);
377 }
378 else
379 {
380 repeat = 0;
381 }
382 } // end of if(!rtnp)
383 } //end of while
384 return proctable;
385 }
386
387 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
388 {
389 int count;
390 struct procsinfo* proctable;
391
392 proctable = _getProcessData(count);
393 kumpf 1.1 if (proctable == NULL)
394 {
395 return false;
396 }
397
398 for (int i=0; i < count; i++)
399 {
400 if (!strcmp(proctable[i].pi_comm, _serverName) && \
401 proctable[i].pi_pid == pid)
402 {
403 free(proctable);
404 return true;
405 }
406 }
407
408 free(proctable);
409 return false;
410 }
411
412 # elif defined(PEGASUS_OS_HPUX)
413
414 kumpf 1.1 ///////////////////////////////////////////////////////
415 // HP-UX implementation of _isServerProcess
416 ///////////////////////////////////////////////////////
417 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
418 {
419 struct pst_status pstru;
420
421 if (pstat_getproc(&pstru, sizeof(struct pst_status), (size_t)0, pid) != -1)
422 {
423 //
424 // Gets the command basename disregarding the command parameters
425 //
426 char *execName = strchr(pstru.pst_cmd,' ');
427 if (execName)
428 {
429 *execName = '\0';
430 }
431 execName = basename(pstru.pst_cmd);
432
433 if (strcmp(execName, _serverName) == 0)
434 {
435 kumpf 1.1 return true;
436 }
437 }
438
439 return false;
440 }
441
442 # else
443
444 ///////////////////////////////////////////////////////
445 // Generic implementation of _isServerProcess
446 ///////////////////////////////////////////////////////
447 Boolean ServerRunStatus::_isServerProcess(PEGASUS_PID_T pid)
448 {
449 return false;
450 }
451
452 # endif
453
454 #endif
455
456 kumpf 1.1 PEGASUS_NAMESPACE_END
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