1 mike 1.1.2.1 /*
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 mike 1.1.2.1 // 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 mike 1.1.2.1 #include "Process.h"
44 #include "Path.h"
45 #include "Globals.h"
46 #include "Socket.h"
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47 mike 1.1.2.6 #include "Strlcpy.h"
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48 mike 1.1.2.11 #include "Strlcat.h"
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49 mike 1.1.2.1 #include "Log.h"
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50 mike 1.1.2.7 #include "Policy.h"
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51 mike 1.1.2.8 #include "Macro.h"
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52 mike 1.1.2.9 #include "Assert.h"
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53 mike 1.1.2.10 #include "Options.h"
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54 mike 1.1.2.1
55 /*
56 **==============================================================================
57 **
58 ** GetServerUser
59 **
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60 mike 1.1.2.9 ** Determine which user to run CIMSERVERMAIN as.
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61 mike 1.1.2.1 **
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62 mike 1.1.2.4 ** Note: this algorithm is no longer in use.
63 **
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64 mike 1.1.2.1 **==============================================================================
65 */
66
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67 mike 1.1.2.4 int GetServerUser(int* uid, int* gid)
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68 mike 1.1.2.1 {
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69 mike 1.1.2.4 const char* username = PEGASUS_CIMSERVERMAIN_USER;
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70 mike 1.1.2.1
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71 mike 1.1.2.4 if (GetUserInfo(username, uid, gid) != 0)
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72 mike 1.1.2.1 {
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73 mike 1.1.2.4 Fatal(FL,
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74 mike 1.1.2.9 "The %s user does not exist: \"%s\". Please create "
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75 mike 1.1.2.4 "a system user with that name or use an OpenPegasus build that "
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76 mike 1.1.2.9 "disables privilege separation.", CIMSERVERMAIN, username);
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77 mike 1.1.2.1 }
78
79 return -1;
80 }
81
82 /*
83 **==============================================================================
84 **
85 ** 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 mike 1.1.2.1
99 fscanf(is, "%d\n", pid);
100 fclose(is);
101
102 if (*pid == 0)
103 return -1;
104
105 return 0;
106 }
107
108 /*
109 **==============================================================================
110 **
111 ** TestCimServerProcess()
112 **
113 ** Returns 0 if cimserver process is running.
114 **
115 **==============================================================================
116 */
117
118 int TestCimServerProcess()
119 mike 1.1.2.1 {
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 return -1;
128
129 return 0;
130 }
131
132 /*
133 **==============================================================================
134 **
135 ** ExecShutdown()
136 **
137 **==============================================================================
138 */
139
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140 mike 1.1.2.9 void ExecShutdown()
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141 mike 1.1.2.1 {
142 char* tmpArgv[3];
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143 mike 1.1.2.9 const char* cimshutdownPath;
144 const char* shutdownTimeout;
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145 mike 1.1.2.1
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146 mike 1.1.2.6 /* Get shutdownTimeout configuration parameter. */
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147 mike 1.1.2.1
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148 mike 1.1.2.9 if ((shutdownTimeout = FindMacro("shutdownTimeout")) == NULL)
149 Fatal(FL, "failed to resolve shutdownTimeout");
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150 mike 1.1.2.6
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151 mike 1.1.2.9 /* Get absolute CIMSHUTDOWN program name. */
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152 mike 1.1.2.1
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153 mike 1.1.2.9 if ((cimshutdownPath = FindMacro("cimshutdownPath")) == NULL)
154 Fatal(FL, "failed to resolve cimshutdownPath");
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155 mike 1.1.2.1
156 /* Create argument list. */
157
158 tmpArgv[0] = CIMSHUTDOWN;
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159 mike 1.1.2.9 tmpArgv[1] = (char*)shutdownTimeout;
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160 mike 1.1.2.1 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 /*
170 **==============================================================================
171 **
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172 mike 1.1.2.8 ** 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
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191 mike 1.1.2.9 /* 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
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207 mike 1.1.2.8 /* Define ${cimservermainPath} */
208 {
209 char path[EXECUTOR_BUFFER_SIZE];
210
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211 mike 1.1.2.9 if (ExpandMacros("${internalBinDir}/${cimservermain}", path) != 0)
212 Fatal(FL, "failed to resolve cimservermainPath");
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213 mike 1.1.2.8
214 DefineMacro("cimservermainPath", path);
215 }
216
217 /* Define ${cimprovagtPath} */
218 {
219 char path[EXECUTOR_BUFFER_SIZE];
220
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221 mike 1.1.2.9 if (ExpandMacros("${internalBinDir}/${cimprovagt}", path) != 0)
222 Fatal(FL, "failed to resolve cimprovagtPath");
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223 mike 1.1.2.8
224 DefineMacro("cimprovagtPath", path);
225 }
226
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227 mike 1.1.2.9 /* Define ${cimshutdownPath} */
228 {
229 char path[EXECUTOR_BUFFER_SIZE];
230
231 if (ExpandMacros("${internalBinDir}/${cimshutdown}", path) != 0)
232 Fatal(FL, "failed to resolve cimshutdownPath");
233
234 DefineMacro("cimshutdownPath", path);
235 }
236
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237 mike 1.1.2.8 /* Define ${cimserveraPath} */
238 {
239 char path[EXECUTOR_BUFFER_SIZE];
240
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241 mike 1.1.2.9 if (ExpandMacros("${internalBinDir}/${cimservera}", path) != 0)
242 Fatal(FL, "failed to resolve cimserveraPath");
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243 mike 1.1.2.8
244 DefineMacro("cimserveraPath", path);
245 }
246
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247 mike 1.1.2.9 /* Define ${shutdownTimeout} */
248
249 {
250 char buffer[EXECUTOR_BUFFER_SIZE];
251
252 if (GetConfigParam("shutdownTimeout", buffer) != 0)
253 Strlcpy(buffer, "5", sizeof(buffer));
254
255 DefineMacro("shutdownTimeout", buffer);
256 }
257
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258 mike 1.1.2.8 /* 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
271 /* Define ${repositoryDir} */
272
273 if (DefineConfigPathMacro("repositoryDir", PEGASUS_REPOSITORY_DIR) != 0)
274 Fatal(FL, "missing \"repositoryDir\" configuration parameter.");
275
276 /* Define ${passwordFilePath} */
277
278 if (DefineConfigPathMacro("passwordFilePath", "cimserver.passwd") != 0)
279 mike 1.1.2.8 Fatal(FL, "missing \"passwordFilePath\" configuration parameter.");
280
281 /* Define ${traceFilePath} */
282
283 if (DefineConfigPathMacro("traceFilePath", NULL) != 0)
284 Fatal(FL, "missing \"traceFilePath\" configuration parameter.");
285
286 /* Define ${sslKeyFilePath} */
287
288 if (DefineConfigPathMacro("sslKeyFilePath", "file.pem") != 0)
289 Fatal(FL, "missing \"sslKeyFilePath\" configuration parameter.");
290
291 /* Define ${sslTrustStore} */
292
293 if (DefineConfigPathMacro("sslTrustStore", "cimserver_trust") != 0)
294 Fatal(FL, "missing \"sslTrustStore\" configuration parameter.");
295
296 /* Define ${crlStore} */
297
298 if (DefineConfigPathMacro("crlStore", "crl") != 0)
299 Fatal(FL, "missing \"crlStore\" configuration parameter.");
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300 mike 1.1.2.11
301 /* Define ${policyConfigFilePath} */
302 {
303 char path1[EXECUTOR_BUFFER_SIZE];
304 char path2[EXECUTOR_BUFFER_SIZE];
305
306 ExpandMacros("${currentConfigFilePath}", path1);
307 DirName(path1, path2);
308 Strlcat(path2, "/cimserver_policy.conf", sizeof(path2));
309
310 DefineMacro("policyConfigFilePath", path2);
311 }
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312 mike 1.1.2.8 }
313
314 /*
315 **==============================================================================
316 **
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317 mike 1.1.2.1 ** main()
318 **
319 **==============================================================================
320 */
321
322 int main(int argc, char** argv)
323 {
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324 mike 1.1.2.9 const char* cimservermainPath;
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325 mike 1.1.2.1 int pair[2];
326 char username[EXECUTOR_BUFFER_SIZE];
327 int childPid;
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328 mike 1.1.2.8 const char* repositoryDir;
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329 mike 1.1.2.10 struct Options options;
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330 mike 1.1.2.1
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331 mike 1.1.2.10 /* Get options. */
332
333 GetOptions(&argc, &argv, &options);
334
335 /* Save argc-argv as globals. */
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336 mike 1.1.2.1
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337 mike 1.1.2.8 globals.argc = argc;
338 globals.argv = argv;
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339 mike 1.1.2.1
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340 mike 1.1.2.8 /* Define macros needed by the executor. */
341
342 DefineExecutorMacros();
343
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344 mike 1.1.2.9 /* If shuting down, then run CIMSHUTDOWN client. */
345
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346 mike 1.1.2.10 if (options.shutdown)
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347 mike 1.1.2.9 ExecShutdown();
348
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349 mike 1.1.2.11 /* Load the dynamic policy file. */
350
351 LoadDynamicPolicy();
352
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353 mike 1.1.2.10 /* Process --policy and --macros options. */
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354 mike 1.1.2.8
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355 mike 1.1.2.10 if (options.policy || options.macros)
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356 mike 1.1.2.1 {
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357 mike 1.1.2.10 if (options.policy)
358 DumpPolicy(1);
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359 mike 1.1.2.8
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360 mike 1.1.2.10 if (options.macros)
361 DumpMacros();
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362 mike 1.1.2.8
363 exit(0);
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364 mike 1.1.2.1 }
365
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366 mike 1.1.2.9 /* Get absolute CIMSERVERMAIN program name. */
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367 mike 1.1.2.6
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368 mike 1.1.2.9 if ((cimservermainPath = FindMacro("cimservermainPath")) == NULL)
369 Fatal(FL, "Failed to locate %s program", CIMSERVERMAIN);
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370 mike 1.1.2.6
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371 mike 1.1.2.10 /* If CIMSERVERMAIN is already running, warn and exit now, unless one of
372 * the following options are given: -v, --version, -h, --help (these are
373 * passed through to CIMSERVERMAIN).
374 */
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375 mike 1.1.2.1
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376 mike 1.1.2.10 if (!options.version && !options.help && TestCimServerProcess() == 0)
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377 mike 1.1.2.1 {
378 fprintf(stderr,
379 "%s: cimserver is already running (the PID found in the file "
380 "\"%s\" corresponds to an existing process named \"%s\").\n\n",
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381 mike 1.1.2.8 globals.argv[0], PEGASUS_CIMSERVER_START_FILE, CIMSERVERMAIN);
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382 mike 1.1.2.1
383 exit(1);
384 }
385
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386 mike 1.1.2.2 /* Get enableAuthentication configuration option. */
387
388 {
389 char buffer[EXECUTOR_BUFFER_SIZE];
390
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391 mike 1.1.2.9 if (GetConfigParam("enableAuthentication", buffer) == 0 &&
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392 mike 1.1.2.2 strcasecmp(buffer, "true") == 0)
393 {
394 globals.enableAuthentication = 1;
395 }
396 }
397
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398 mike 1.1.2.1 /* Create a socket pair for communicating with the child process. */
399
400 if (CreateSocketPair(pair) != 0)
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401 mike 1.1.2.5 Fatal(FL, "Failed to create socket pair");
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402 mike 1.1.2.1
403 CloseOnExec(pair[1]);
404
405 /* Get the log-level from the configuration parameter. */
406
407 GetLogLevel(argc, argv);
408
409 /* Open the log. */
410
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411 mike 1.1.2.10 OpenLog("cimexecutor", options.perror);
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412 mike 1.1.2.1
413 Log(LL_INFORMATION, "starting");
414
415 /* Be sure this process is running as root (otherwise fail). */
416
417 if (setuid(0) != 0 || setgid(0) != 0)
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418 mike 1.1.2.10 Fatal(FL, "attempted to run program as non-root user");
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419 mike 1.1.2.1
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420 mike 1.1.2.10 /* Warn if authentication not enabled (suspicious use of executor). */
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421 mike 1.1.2.2
422 if (!globals.enableAuthentication)
423 Log(LL_WARNING, "authentication is NOT enabled");
424 else
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425 mike 1.1.2.3 Log(LL_TRACE, "authentication is enabled");
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426 mike 1.1.2.2
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427 mike 1.1.2.1 /* Print user info. */
428
429 if (GetUserName(getuid(), username) != 0)
430 Fatal(FL, "cannot resolve user from uid=%d", getuid());
431
432 Log(LL_TRACE, "running as %s (uid=%d, gid=%d)",
433 username, (int)getuid(), (int)getgid());
434
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435 mike 1.1.2.9 /* Determine user for running CIMSERVERMAIN. */
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436 mike 1.1.2.1
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437 mike 1.1.2.4 GetServerUser(&globals.childUid, &globals.childGid);
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438 mike 1.1.2.1
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439 mike 1.1.2.8 /* Get repositoryDir for child. */
440
441 if ((repositoryDir = FindMacro("repositoryDir")) == NULL)
442 Fatal(FL, "failed to find repositoryDir macro");
443
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444 mike 1.1.2.1 /* Fork child process. */
445
446 childPid = fork();
447
448 if (childPid == 0)
449 {
450 /* Child. */
451 close(pair[1]);
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452 mike 1.1.2.8 Child(argc, argv, cimservermainPath, globals.childUid,
453 globals.childGid, pair[0], repositoryDir);
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454 mike 1.1.2.1 }
455 else if (childPid > 0)
456 {
457 /* Parent. */
458 close(pair[0]);
459 Parent(pair[1], childPid);
460 }
461 else
462 {
463 Fatal(FL, "fork() failed");
464 }
465
466 return 0;
467 }
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