1 kumpf 1.1.4.2 /*
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 1.1.4.2 // 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 <stdio.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <unistd.h>
37 #include <string.h>
38 #include "Config.h"
39 #include "Child.h"
40 #include "Parent.h"
41 #include "User.h"
42 #include "Fatal.h"
43 kumpf 1.1.4.2 #include "Process.h"
44 #include "Path.h"
45 #include "Globals.h"
46 #include "Socket.h"
47 #include "Strlcpy.h"
48 #include "Strlcat.h"
49 #include "Log.h"
50 #include "Policy.h"
51 #include "Macro.h"
52 #include "Assert.h"
53 #include "Options.h"
54
55 /*
56 **==============================================================================
57 **
58 ** GetServerUser
59 **
60 ** Determine which user to run CIMSERVERMAIN as.
61 **
62 ** Note: this algorithm is no longer in use.
63 **
64 kumpf 1.1.4.2 **==============================================================================
65 */
66
67 int GetServerUser(int* uid, int* gid)
68 {
69 const char* username = PEGASUS_CIMSERVERMAIN_USER;
70
71 if (GetUserInfo(username, uid, gid) != 0)
72 {
73 Fatal(FL,
74 "The %s user does not exist: \"%s\". Please create "
75 "a system user with that name or use an OpenPegasus build that "
76 "disables privilege separation.", CIMSERVERMAIN, username);
77 }
78
79 return -1;
80 }
81
82 /*
83 **==============================================================================
84 **
85 kumpf 1.1.4.2 ** ReadPidFile()
86 **
87 **==============================================================================
88 */
89
90 static int ReadPidFile(const char* path, int* pid)
91 {
92 FILE* is = fopen(path, "r");
93
94 if (!is)
95 return -1;
96
97 *pid = 0;
98
99 fscanf(is, "%d\n", pid);
100 fclose(is);
101
102 if (*pid == 0)
103 return -1;
104
105 return 0;
106 kumpf 1.1.4.2 }
107
108 /*
109 **==============================================================================
110 **
111 ** TestCimServerProcess()
112 **
113 ** Returns 0 if cimserver process is running.
114 **
115 **==============================================================================
116 */
117
118 int TestCimServerProcess()
119 {
120 int pid;
121 char name[EXECUTOR_BUFFER_SIZE];
122
123 if (ReadPidFile(PEGASUS_CIMSERVER_START_FILE, &pid) != 0)
124 return -1;
125
126 if (GetProcessName(pid, name) != 0 || strcmp(name, CIMSERVERMAIN) != 0)
127 kumpf 1.1.4.2 return -1;
128
129 return 0;
130 }
131
132 /*
133 **==============================================================================
134 **
135 ** ExecShutdown()
136 **
137 **==============================================================================
138 */
139
140 void ExecShutdown()
141 {
142 char* tmpArgv[3];
143 const char* cimshutdownPath;
144 const char* shutdownTimeout;
145
146 /* Get shutdownTimeout configuration parameter. */
147
148 kumpf 1.1.4.2 if ((shutdownTimeout = FindMacro("shutdownTimeout")) == NULL)
149 Fatal(FL, "failed to resolve shutdownTimeout");
150
151 /* Get absolute CIMSHUTDOWN program name. */
152
153 if ((cimshutdownPath = FindMacro("cimshutdownPath")) == NULL)
154 Fatal(FL, "failed to resolve cimshutdownPath");
155
156 /* Create argument list. */
157
158 tmpArgv[0] = CIMSHUTDOWN;
159 tmpArgv[1] = (char*)shutdownTimeout;
160 tmpArgv[2] = 0;
161
162 /* Exec CIMSHUTDOWN program. */
163
164 /* Flawfinder: ignore */
165 execv(cimshutdownPath, tmpArgv);
166 Fatal(FL, "failed to exec %s", cimshutdownPath);
167 }
168
169 kumpf 1.1.4.2 /*
170 **==============================================================================
171 **
172 ** DefineExecutorMacros()
173 **
174 ** Define macros used by the executor.
175 **
176 **==============================================================================
177 */
178
179 void DefineExecutorMacros()
180 {
181 /* Define ${internalBinDir} */
182 {
183 char path[EXECUTOR_BUFFER_SIZE];
184
185 if (GetPegasusInternalBinDir(path) != 0)
186 Fatal(FL, "failed to resolve internal pegasus bin directory");
187
188 DefineMacro("internalBinDir", path);
189 }
190 kumpf 1.1.4.2
191 /* Define ${cimservermain} */
192
193 DefineMacro("cimservermain", CIMSERVERMAIN);
194
195 /* Define ${cimprovagt} */
196
197 DefineMacro("cimprovagt", CIMPROVAGT);
198
199 /* Define ${cimshutdown} */
200
201 DefineMacro("cimshutdown", CIMSHUTDOWN);
202
203 /* Define ${cimservera} */
204
205 DefineMacro("cimservera", CIMSERVERA);
206
207 /* Define ${cimservermainPath} */
208 {
209 char path[EXECUTOR_BUFFER_SIZE];
210
211 kumpf 1.1.4.2 if (ExpandMacros("${internalBinDir}/${cimservermain}", path) != 0)
212 Fatal(FL, "failed to resolve cimservermainPath");
213
214 DefineMacro("cimservermainPath", path);
215 }
216
217 /* Define ${cimprovagtPath} */
218 {
219 char path[EXECUTOR_BUFFER_SIZE];
220
221 if (ExpandMacros("${internalBinDir}/${cimprovagt}", path) != 0)
222 Fatal(FL, "failed to resolve cimprovagtPath");
223
224 DefineMacro("cimprovagtPath", path);
225 }
226
227 /* Define ${cimshutdownPath} */
228 {
229 char path[EXECUTOR_BUFFER_SIZE];
230
231 if (ExpandMacros("${internalBinDir}/${cimshutdown}", path) != 0)
232 kumpf 1.1.4.2 Fatal(FL, "failed to resolve cimshutdownPath");
233
234 DefineMacro("cimshutdownPath", path);
235 }
236
237 /* Define ${cimserveraPath} */
238 {
239 char path[EXECUTOR_BUFFER_SIZE];
240
241 if (ExpandMacros("${internalBinDir}/${cimservera}", path) != 0)
242 Fatal(FL, "failed to resolve cimserveraPath");
243
244 DefineMacro("cimserveraPath", path);
245 }
246
247 /* Define ${shutdownTimeout} */
248
249 {
250 char buffer[EXECUTOR_BUFFER_SIZE];
251
252 if (GetConfigParam("shutdownTimeout", buffer) != 0)
253 kumpf 1.1.4.2 Strlcpy(buffer, "5", sizeof(buffer));
254
255 DefineMacro("shutdownTimeout", buffer);
256 }
257
258 /* Define ${currentConfigFilePath} */
259 {
260 char path[EXECUTOR_BUFFER_SIZE];
261
262 if (GetHomedPath(PEGASUS_CURRENT_CONFIG_FILE_PATH, path) != 0)
263 {
264 Fatal(FL, "GetHomedPath() failed on \"%s\"",
265 PEGASUS_CURRENT_CONFIG_FILE_PATH);
266 }
267
268 DefineMacro("currentConfigFilePath", path);
269 }
270
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284 kumpf 1.1.4.2 /* Define ${passwordFilePath} */
285
286 if (DefineConfigPathMacro("passwordFilePath", "cimserver.passwd") != 0)
287 Fatal(FL, "missing \"passwordFilePath\" configuration parameter.");
288
289 /* Define ${sslKeyFilePath} */
290
291 if (DefineConfigPathMacro("sslKeyFilePath", "file.pem") != 0)
292 Fatal(FL, "missing \"sslKeyFilePath\" configuration parameter.");
293
294 /* Define ${sslTrustStore} */
295
296 if (DefineConfigPathMacro("sslTrustStore", "cimserver_trust") != 0)
297 Fatal(FL, "missing \"sslTrustStore\" configuration parameter.");
298
299 /* Define ${crlStore} */
300
301 if (DefineConfigPathMacro("crlStore", "crl") != 0)
302 Fatal(FL, "missing \"crlStore\" configuration parameter.");
303
304 /* Define ${privilegedUser} */
305 kumpf 1.1.4.2
306 DefineMacro("privilegedUser", "root");
307
308 /* Define ${cimserverUser} */
309
310 DefineMacro("cimserverUser", PEGASUS_CIMSERVERMAIN_USER);
311 }
312
313 /*
314 **==============================================================================
315 **
316 ** main()
317 **
318 **==============================================================================
319 */
320
321 int main(int argc, char** argv)
322 {
323 const char* cimservermainPath;
324 int pair[2];
325 char username[EXECUTOR_BUFFER_SIZE];
326 kumpf 1.1.4.2 int childPid;
327 struct Options options;
328
329 /* Get options. */
330
331 GetOptions(&argc, &argv, &options);
332
333 /* Save argc-argv as globals. */
334
335 globals.argc = argc;
336 globals.argv = argv;
337
338 /* Define macros needed by the executor. */
339
340 DefineExecutorMacros();
341
342 /* If shuting down, then run CIMSHUTDOWN client. */
343
344 if (options.shutdown)
345 ExecShutdown();
346
347 kumpf 1.1.4.2 /* Process --policy and --macros options. */
348
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353 kumpf 1.1.4.2 exit(0);
354 }
355
356 /* Get absolute CIMSERVERMAIN program name. */
357
358 if ((cimservermainPath = FindMacro("cimservermainPath")) == NULL)
359 Fatal(FL, "Failed to locate %s program", CIMSERVERMAIN);
360
361 /* If CIMSERVERMAIN is already running, warn and exit now, unless one of
362 * the following options are given: -v, --version, -h, --help (these are
363 * passed through to CIMSERVERMAIN).
364 */
365
366 if (!options.version && !options.help && TestCimServerProcess() == 0)
367 {
368 fprintf(stderr,
369 "%s: cimserver is already running (the PID found in the file "
370 "\"%s\" corresponds to an existing process named \"%s\").\n\n",
371 globals.argv[0], PEGASUS_CIMSERVER_START_FILE, CIMSERVERMAIN);
372
373 exit(1);
374 kumpf 1.1.4.2 }
375
376 /* Get enableAuthentication configuration option. */
377
378 {
379 char buffer[EXECUTOR_BUFFER_SIZE];
380
381 if (GetConfigParam("enableAuthentication", buffer) == 0 &&
382 strcasecmp(buffer, "true") == 0)
383 {
384 globals.enableAuthentication = 1;
385 }
386 }
387
388 /* Create a socket pair for communicating with the child process. */
389
390 if (CreateSocketPair(pair) != 0)
391 Fatal(FL, "Failed to create socket pair");
392
393 CloseOnExec(pair[1]);
394
395 kumpf 1.1.4.2 /* Get the log-level from the configuration parameter. */
396
397 GetLogLevel(argc, argv);
398
399 /* Open the log. */
400
|
402 kumpf 1.1.4.2
403 Log(LL_INFORMATION, "starting");
404
405 /* Be sure this process is running as root (otherwise fail). */
406
407 if (setuid(0) != 0 || setgid(0) != 0)
408 Fatal(FL, "attempted to run program as non-root user");
409
410 /* Warn if authentication not enabled (suspicious use of executor). */
411
412 if (!globals.enableAuthentication)
413 Log(LL_WARNING, "authentication is NOT enabled");
414 else
415 Log(LL_TRACE, "authentication is enabled");
416
417 /* Print user info. */
418
419 if (GetUserName(getuid(), username) != 0)
420 Fatal(FL, "cannot resolve user from uid=%d", getuid());
421
422 Log(LL_TRACE, "running as %s (uid=%d, gid=%d)",
423 kumpf 1.1.4.2 username, (int)getuid(), (int)getgid());
424
425 /* Determine user for running CIMSERVERMAIN. */
426
427 GetServerUser(&globals.childUid, &globals.childGid);
428
429 /* Fork child process. */
430
431 childPid = fork();
432
433 if (childPid == 0)
434 {
435 /* Child. */
436 close(pair[1]);
437 Child(argc, argv, cimservermainPath, globals.childUid,
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main.c
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