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e91b9f68 A |
1 | /** |
2 | * System Starter main | |
3 | * Wilfredo Sanchez | wsanchez@opensource.apple.com | |
4 | * $Apple$ | |
5 | ** | |
6 | * Copyright (c) 1999-2002 Apple Computer, Inc. All rights reserved. | |
7 | * | |
ed34e3c3 A |
8 | * @APPLE_APACHE_LICENSE_HEADER_START@ |
9 | * | |
10 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
11 | * you may not use this file except in compliance with the License. | |
12 | * You may obtain a copy of the License at | |
13 | * | |
14 | * http://www.apache.org/licenses/LICENSE-2.0 | |
15 | * | |
16 | * Unless required by applicable law or agreed to in writing, software | |
17 | * distributed under the License is distributed on an "AS IS" BASIS, | |
18 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
19 | * See the License for the specific language governing permissions and | |
20 | * limitations under the License. | |
21 | * | |
22 | * @APPLE_APACHE_LICENSE_HEADER_END@ | |
e91b9f68 A |
23 | **/ |
24 | ||
5b0a4722 A |
25 | #include <IOKit/IOKitLib.h> |
26 | #include <sys/types.h> | |
27 | #include <sys/event.h> | |
28 | #include <sys/stat.h> | |
29 | #include <paths.h> | |
e91b9f68 A |
30 | #include <unistd.h> |
31 | #include <crt_externs.h> | |
32 | #include <fcntl.h> | |
33 | #include <syslog.h> | |
5b0a4722 | 34 | #include <assert.h> |
e91b9f68 | 35 | #include <CoreFoundation/CoreFoundation.h> |
ddbbfbc1 A |
36 | #include <DiskArbitration/DiskArbitration.h> |
37 | #include <DiskArbitration/DiskArbitrationPrivate.h> | |
e91b9f68 A |
38 | #include <NSSystemDirectories.h> |
39 | #include "IPC.h" | |
40 | #include "StartupItems.h" | |
41 | #include "SystemStarter.h" | |
42 | #include "SystemStarterIPC.h" | |
43 | ||
44 | bool gDebugFlag = false; | |
45 | bool gVerboseFlag = false; | |
46 | bool gNoRunFlag = false; | |
47 | ||
48 | static void usage(void) __attribute__((noreturn)); | |
49 | static int system_starter(Action anAction, const char *aService); | |
ddbbfbc1 | 50 | static void displayErrorMessages(StartupContext aStartupContext, Action anAction); |
5b0a4722 | 51 | static pid_t fwexec(const char *cmd, ...) __attribute__((sentinel)); |
ddbbfbc1 | 52 | static void autodiskmount(void); |
5b0a4722 A |
53 | static void dummy_sig(int signo __attribute__((unused))) |
54 | { | |
55 | } | |
e91b9f68 A |
56 | |
57 | int | |
58 | main(int argc, char *argv[]) | |
59 | { | |
5b0a4722 | 60 | struct kevent kev; |
e91b9f68 | 61 | Action anAction = kActionStart; |
5b0a4722 A |
62 | int ch, r, kq = kqueue(); |
63 | ||
64 | assert(kq != -1); | |
65 | ||
66 | EV_SET(&kev, SIGTERM, EVFILT_SIGNAL, EV_ADD, 0, 0, 0); | |
67 | r = kevent(kq, &kev, 1, NULL, 0, NULL); | |
68 | assert(r != -1); | |
69 | signal(SIGTERM, dummy_sig); | |
e91b9f68 A |
70 | |
71 | while ((ch = getopt(argc, argv, "gvxirdDqn?")) != -1) { | |
72 | switch (ch) { | |
73 | case 'v': | |
74 | gVerboseFlag = true; | |
75 | break; | |
76 | case 'x': | |
77 | case 'g': | |
78 | case 'r': | |
79 | case 'q': | |
80 | break; | |
81 | case 'd': | |
82 | case 'D': | |
83 | gDebugFlag = true; | |
84 | break; | |
85 | case 'n': | |
86 | gNoRunFlag = true; | |
87 | break; | |
88 | case '?': | |
89 | default: | |
90 | usage(); | |
91 | break; | |
92 | } | |
93 | } | |
94 | argc -= optind; | |
95 | argv += optind; | |
96 | ||
5b0a4722 | 97 | if (argc > 2) { |
e91b9f68 | 98 | usage(); |
5b0a4722 | 99 | } |
e91b9f68 A |
100 | |
101 | openlog(getprogname(), LOG_PID|LOG_CONS|(gDebugFlag ? LOG_PERROR : 0), LOG_DAEMON); | |
5b0a4722 | 102 | if (gDebugFlag) { |
e91b9f68 | 103 | setlogmask(LOG_UPTO(LOG_DEBUG)); |
5b0a4722 A |
104 | } else if (gVerboseFlag) { |
105 | setlogmask(LOG_UPTO(LOG_INFO)); | |
106 | } else { | |
107 | setlogmask(LOG_UPTO(LOG_NOTICE)); | |
108 | } | |
e91b9f68 A |
109 | |
110 | if (!gNoRunFlag && (getuid() != 0)) { | |
111 | syslog(LOG_ERR, "must be root to run"); | |
112 | exit(EXIT_FAILURE); | |
113 | } | |
114 | ||
115 | if (argc > 0) { | |
116 | if (strcmp(argv[0], "start") == 0) { | |
117 | anAction = kActionStart; | |
118 | } else if (strcmp(argv[0], "stop") == 0) { | |
119 | anAction = kActionStop; | |
120 | } else if (strcmp(argv[0], "restart") == 0) { | |
121 | anAction = kActionRestart; | |
122 | } else { | |
123 | usage(); | |
124 | } | |
125 | } | |
126 | ||
5b0a4722 A |
127 | if (argc == 2) { |
128 | exit(system_starter(anAction, argv[1])); | |
129 | } | |
e91b9f68 A |
130 | |
131 | unlink(kFixerPath); | |
132 | ||
5b0a4722 A |
133 | mach_timespec_t w = { 600, 0 }; |
134 | kern_return_t kr; | |
5b0a4722 A |
135 | |
136 | /* | |
137 | * Too many old StartupItems had implicit dependancies on "Network" via | |
138 | * other StartupItems that are now no-ops. | |
139 | * | |
140 | * SystemStarter is not on the critical path for boot up, so we'll | |
141 | * stall here to deal with this legacy dependancy problem. | |
142 | */ | |
143 | ||
144 | if ((kr = IOKitWaitQuiet(kIOMasterPortDefault, &w)) != kIOReturnSuccess) { | |
145 | syslog(LOG_NOTICE, "IOKitWaitQuiet: %d\n", kr); | |
e91b9f68 A |
146 | } |
147 | ||
5b0a4722 | 148 | fwexec("/usr/sbin/ipconfig", "waitall", NULL); |
ddbbfbc1 | 149 | autodiskmount(); /* wait for Disk Arbitration to report idle */ |
5b0a4722 A |
150 | |
151 | system_starter(kActionStart, NULL); | |
152 | ||
ddbbfbc1 | 153 | if (StartupItemSecurityCheck("/etc/rc.local")) { |
5b0a4722 A |
154 | fwexec(_PATH_BSHELL, "/etc/rc.local", NULL); |
155 | } | |
156 | ||
157 | CFNotificationCenterPostNotificationWithOptions( | |
158 | CFNotificationCenterGetDistributedCenter(), | |
159 | CFSTR("com.apple.startupitems.completed"), | |
160 | NULL, NULL, | |
161 | kCFNotificationDeliverImmediately | kCFNotificationPostToAllSessions); | |
162 | ||
163 | r = kevent(kq, NULL, 0, &kev, 1, NULL); | |
164 | assert(r != -1); | |
165 | assert(kev.filter == EVFILT_SIGNAL && kev.ident == SIGTERM); | |
166 | ||
ddbbfbc1 | 167 | if (StartupItemSecurityCheck("/etc/rc.shutdown.local")) { |
5b0a4722 A |
168 | fwexec(_PATH_BSHELL, "/etc/rc.shutdown.local", NULL); |
169 | } | |
170 | ||
171 | system_starter(kActionStop, NULL); | |
172 | ||
173 | exit(EXIT_SUCCESS); | |
e91b9f68 A |
174 | } |
175 | ||
176 | ||
177 | /** | |
178 | * checkForActivity checks to see if any items have completed since the last invokation. | |
179 | * If not, a message is displayed showing what item(s) are being waited on. | |
180 | **/ | |
181 | static void | |
182 | checkForActivity(StartupContext aStartupContext) | |
183 | { | |
184 | static CFIndex aLastStatusDictionaryCount = -1; | |
185 | static CFStringRef aWaitingForString = NULL; | |
186 | ||
187 | if (aStartupContext && aStartupContext->aStatusDict) { | |
188 | CFIndex aCount = CFDictionaryGetCount(aStartupContext->aStatusDict); | |
189 | ||
190 | if (!aWaitingForString) { | |
191 | aWaitingForString = CFSTR("Waiting for %@"); | |
192 | } | |
193 | if (aLastStatusDictionaryCount == aCount) { | |
194 | CFArrayRef aRunningList = StartupItemListGetRunning(aStartupContext->aWaitingList); | |
195 | if (aRunningList && CFArrayGetCount(aRunningList) > 0) { | |
196 | CFMutableDictionaryRef anItem = (CFMutableDictionaryRef) CFArrayGetValueAtIndex(aRunningList, 0); | |
197 | CFStringRef anItemDescription = StartupItemGetDescription(anItem); | |
198 | CFStringRef aString = aWaitingForString && anItemDescription ? | |
199 | CFStringCreateWithFormat(NULL, NULL, aWaitingForString, anItemDescription) : NULL; | |
200 | ||
201 | if (aString) { | |
202 | CF_syslog(LOG_INFO, CFSTR("%@"), aString); | |
203 | CFRelease(aString); | |
204 | } | |
205 | if (anItemDescription) | |
206 | CFRelease(anItemDescription); | |
207 | } | |
208 | if (aRunningList) | |
209 | CFRelease(aRunningList); | |
210 | } | |
211 | aLastStatusDictionaryCount = aCount; | |
212 | } | |
213 | } | |
214 | ||
215 | /* | |
216 | * print out any error messages to the log regarding non starting StartupItems | |
217 | */ | |
218 | void | |
ddbbfbc1 | 219 | displayErrorMessages(StartupContext aStartupContext, Action anAction) |
e91b9f68 A |
220 | { |
221 | if (aStartupContext->aFailedList && CFArrayGetCount(aStartupContext->aFailedList) > 0) { | |
222 | CFIndex anItemCount = CFArrayGetCount(aStartupContext->aFailedList); | |
223 | CFIndex anItemIndex; | |
224 | ||
225 | ||
ddbbfbc1 | 226 | syslog(LOG_WARNING, "The following StartupItems failed to %s properly:", (anAction == kActionStart) ? "start" : "stop"); |
e91b9f68 A |
227 | |
228 | for (anItemIndex = 0; anItemIndex < anItemCount; anItemIndex++) { | |
229 | CFMutableDictionaryRef anItem = (CFMutableDictionaryRef) CFArrayGetValueAtIndex(aStartupContext->aFailedList, anItemIndex); | |
230 | CFStringRef anErrorDescription = CFDictionaryGetValue(anItem, kErrorKey); | |
231 | CFStringRef anItemPath = CFDictionaryGetValue(anItem, kBundlePathKey); | |
232 | ||
233 | if (anItemPath) { | |
234 | CF_syslog(LOG_WARNING, CFSTR("%@"), anItemPath); | |
235 | } | |
236 | if (anErrorDescription) { | |
237 | CF_syslog(LOG_WARNING, CFSTR(" - %@"), anErrorDescription); | |
238 | } else { | |
239 | CF_syslog(LOG_WARNING, CFSTR(" - %@"), kErrorInternal); | |
240 | } | |
241 | } | |
242 | } | |
243 | if (CFArrayGetCount(aStartupContext->aWaitingList) > 0) { | |
244 | CFIndex anItemCount = CFArrayGetCount(aStartupContext->aWaitingList); | |
245 | CFIndex anItemIndex; | |
246 | ||
247 | syslog(LOG_WARNING, "The following StartupItems were not attempted due to failure of a required service:"); | |
248 | ||
249 | for (anItemIndex = 0; anItemIndex < anItemCount; anItemIndex++) { | |
250 | CFMutableDictionaryRef anItem = (CFMutableDictionaryRef) CFArrayGetValueAtIndex(aStartupContext->aWaitingList, anItemIndex); | |
251 | CFStringRef anItemPath = CFDictionaryGetValue(anItem, kBundlePathKey); | |
252 | if (anItemPath) { | |
253 | CF_syslog(LOG_WARNING, CFSTR("%@"), anItemPath); | |
254 | } | |
255 | } | |
256 | } | |
257 | } | |
258 | ||
259 | ||
260 | static int | |
261 | system_starter(Action anAction, const char *aService_cstr) | |
262 | { | |
e91b9f68 A |
263 | CFStringRef aService = NULL; |
264 | NSSearchPathDomainMask aMask; | |
265 | ||
266 | if (aService_cstr) | |
267 | aService = CFStringCreateWithCString(kCFAllocatorDefault, aService_cstr, kCFStringEncodingUTF8); | |
268 | ||
269 | StartupContext aStartupContext = (StartupContext) malloc(sizeof(struct StartupContextStorage)); | |
270 | if (!aStartupContext) { | |
271 | syslog(LOG_ERR, "Not enough memory to allocate startup context"); | |
272 | return (1); | |
273 | } | |
274 | if (gDebugFlag && gNoRunFlag) | |
275 | sleep(1); | |
276 | ||
e91b9f68 A |
277 | /** |
278 | * Get a list of Startup Items which are in /Local and /System. | |
279 | * We can't search /Network yet because the network isn't up. | |
280 | **/ | |
281 | aMask = NSSystemDomainMask | NSLocalDomainMask; | |
282 | ||
283 | aStartupContext->aWaitingList = StartupItemListCreateWithMask(aMask); | |
284 | aStartupContext->aFailedList = NULL; | |
285 | aStartupContext->aStatusDict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, | |
286 | &kCFTypeDictionaryValueCallBacks); | |
287 | aStartupContext->aServicesCount = 0; | |
288 | aStartupContext->aRunningCount = 0; | |
289 | ||
290 | if (aService) { | |
291 | CFMutableArrayRef aDependentsList = StartupItemListCreateDependentsList(aStartupContext->aWaitingList, aService, anAction); | |
292 | ||
293 | if (aDependentsList) { | |
294 | CFRelease(aStartupContext->aWaitingList); | |
295 | aStartupContext->aWaitingList = aDependentsList; | |
296 | } else { | |
297 | CF_syslog(LOG_ERR, CFSTR("Unknown service: %@"), aService); | |
298 | return (1); | |
299 | } | |
300 | } | |
301 | aStartupContext->aServicesCount = StartupItemListCountServices(aStartupContext->aWaitingList); | |
302 | ||
303 | /** | |
304 | * Do the run loop | |
305 | **/ | |
306 | while (1) { | |
307 | CFMutableDictionaryRef anItem = StartupItemListGetNext(aStartupContext->aWaitingList, aStartupContext->aStatusDict, anAction); | |
308 | ||
309 | if (anItem) { | |
310 | int err = StartupItemRun(aStartupContext->aStatusDict, anItem, anAction); | |
311 | if (!err) { | |
312 | ++aStartupContext->aRunningCount; | |
313 | MonitorStartupItem(aStartupContext, anItem); | |
314 | } else { | |
315 | /* add item to failed list */ | |
316 | AddItemToFailedList(aStartupContext, anItem); | |
317 | ||
318 | /* Remove the item from the waiting list. */ | |
319 | RemoveItemFromWaitingList(aStartupContext, anItem); | |
320 | } | |
321 | } else { | |
322 | /* | |
323 | * If no item was selected to run, and if no items | |
324 | * are running, startup is done. | |
325 | */ | |
326 | if (aStartupContext->aRunningCount == 0) { | |
327 | syslog(LOG_DEBUG, "none left"); | |
328 | break; | |
329 | } | |
330 | /* | |
331 | * Process incoming IPC messages and item | |
332 | * terminations | |
333 | */ | |
334 | switch (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 3.0, true)) { | |
335 | case kCFRunLoopRunTimedOut: | |
336 | checkForActivity(aStartupContext); | |
337 | break; | |
338 | case kCFRunLoopRunFinished: | |
339 | break; | |
340 | case kCFRunLoopRunStopped: | |
341 | break; | |
342 | case kCFRunLoopRunHandledSource: | |
343 | break; | |
344 | default: | |
345 | /* unknown return value */ | |
346 | break; | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
351 | /** | |
352 | * Good-bye. | |
353 | **/ | |
ddbbfbc1 | 354 | displayErrorMessages(aStartupContext, anAction); |
e91b9f68 A |
355 | |
356 | /* clean up */ | |
357 | if (aStartupContext->aStatusDict) | |
358 | CFRelease(aStartupContext->aStatusDict); | |
359 | if (aStartupContext->aWaitingList) | |
360 | CFRelease(aStartupContext->aWaitingList); | |
361 | if (aStartupContext->aFailedList) | |
362 | CFRelease(aStartupContext->aFailedList); | |
363 | ||
364 | free(aStartupContext); | |
365 | return (0); | |
366 | } | |
367 | ||
368 | void | |
369 | CF_syslog(int level, CFStringRef message,...) | |
370 | { | |
371 | char buf[8192]; | |
372 | CFStringRef cooked_msg; | |
373 | va_list ap; | |
374 | ||
375 | va_start(ap, message); | |
376 | cooked_msg = CFStringCreateWithFormatAndArguments(NULL, NULL, message, ap); | |
377 | va_end(ap); | |
378 | ||
379 | if (CFStringGetCString(cooked_msg, buf, sizeof(buf), kCFStringEncodingUTF8)) | |
380 | syslog(level, buf); | |
381 | ||
382 | CFRelease(cooked_msg); | |
383 | } | |
384 | ||
385 | static void | |
386 | usage(void) | |
387 | { | |
388 | fprintf(stderr, "usage: %s [-vdqn?] [ <action> [ <item> ] ]\n" | |
389 | "\t<action>: action to take (start|stop|restart); default is start\n" | |
390 | "\t<item> : name of item to act on; default is all items\n" | |
391 | "options:\n" | |
392 | "\t-v: verbose startup\n" | |
393 | "\t-d: print debugging output\n" | |
394 | "\t-q: be quiet (disable debugging output)\n" | |
395 | "\t-n: don't actually perform action on items (pretend mode)\n" | |
396 | "\t-?: show this help\n", | |
397 | getprogname()); | |
398 | exit(EXIT_FAILURE); | |
399 | } | |
400 | ||
5b0a4722 A |
401 | pid_t |
402 | fwexec(const char *cmd, ...) | |
e91b9f68 | 403 | { |
5b0a4722 A |
404 | const char *argv[100] = { cmd }; |
405 | va_list ap; | |
406 | int wstatus, i = 1; | |
407 | pid_t p; | |
408 | ||
409 | va_start(ap, cmd); | |
410 | do { | |
411 | argv[i] = va_arg(ap, char *); | |
412 | } while (argv[i++]); | |
413 | va_end(ap); | |
414 | ||
415 | switch ((p = fork())) { | |
416 | case -1: | |
417 | return -1; | |
418 | case 0: | |
419 | execvp(argv[0], (char *const *)argv); | |
420 | _exit(EXIT_FAILURE); | |
421 | break; | |
422 | default: | |
423 | if (waitpid(p, &wstatus, 0) == -1) { | |
424 | return -1; | |
425 | } else if (WIFEXITED(wstatus)) { | |
426 | if (WEXITSTATUS(wstatus) == 0) { | |
427 | return 0; | |
428 | } else { | |
429 | syslog(LOG_WARNING, "%s exit status: %d", argv[0], WEXITSTATUS(wstatus)); | |
430 | } | |
431 | } else { | |
432 | /* must have died due to signal */ | |
433 | syslog(LOG_WARNING, "%s died: %s", argv[0], strsignal(WTERMSIG(wstatus))); | |
434 | } | |
435 | break; | |
436 | } | |
437 | ||
438 | return -1; | |
e91b9f68 | 439 | } |
ddbbfbc1 A |
440 | |
441 | static void | |
442 | autodiskmount_idle(void* context __attribute__((unused))) | |
443 | { | |
444 | CFRunLoopStop(CFRunLoopGetCurrent()); | |
445 | } | |
446 | ||
447 | static void | |
448 | autodiskmount(void) | |
449 | { | |
450 | DASessionRef session = DASessionCreate(NULL); | |
451 | if (session) { | |
452 | DASessionScheduleWithRunLoop(session, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode); | |
453 | DARegisterIdleCallback(session, autodiskmount_idle, NULL); | |
454 | CFRunLoopRun(); | |
455 | CFRelease(session); | |
456 | } | |
457 | } |