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663996b3 MS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
663996b3 MS |
22 | #include <errno.h> |
23 | #include <string.h> | |
663996b3 | 24 | #include <signal.h> |
663996b3 MS |
25 | #include <sys/wait.h> |
26 | #include <unistd.h> | |
5eef597e MP |
27 | #include <sys/inotify.h> |
28 | #include <sys/epoll.h> | |
663996b3 MS |
29 | #include <sys/reboot.h> |
30 | #include <sys/ioctl.h> | |
31 | #include <linux/kd.h> | |
663996b3 | 32 | #include <fcntl.h> |
663996b3 MS |
33 | #include <dirent.h> |
34 | #include <sys/timerfd.h> | |
35 | ||
36 | #ifdef HAVE_AUDIT | |
37 | #include <libaudit.h> | |
38 | #endif | |
39 | ||
60f067b4 | 40 | #include "sd-daemon.h" |
60f067b4 | 41 | #include "sd-messages.h" |
663996b3 | 42 | |
663996b3 MS |
43 | #include "hashmap.h" |
44 | #include "macro.h" | |
45 | #include "strv.h" | |
46 | #include "log.h" | |
47 | #include "util.h" | |
48 | #include "mkdir.h" | |
49 | #include "ratelimit.h" | |
14228c0d | 50 | #include "locale-setup.h" |
663996b3 | 51 | #include "unit-name.h" |
663996b3 | 52 | #include "missing.h" |
e3bff60a | 53 | #include "rm-rf.h" |
663996b3 MS |
54 | #include "path-lookup.h" |
55 | #include "special.h" | |
663996b3 MS |
56 | #include "exit-status.h" |
57 | #include "virt.h" | |
58 | #include "watchdog.h" | |
663996b3 MS |
59 | #include "path-util.h" |
60 | #include "audit-fd.h" | |
14228c0d | 61 | #include "boot-timestamps.h" |
663996b3 | 62 | #include "env-util.h" |
f47781d8 | 63 | #include "bus-common-errors.h" |
60f067b4 JS |
64 | #include "bus-error.h" |
65 | #include "bus-util.h" | |
60f067b4 | 66 | #include "bus-kernel.h" |
5eef597e | 67 | #include "time-util.h" |
e3bff60a MP |
68 | #include "process-util.h" |
69 | #include "terminal-util.h" | |
86f210e9 MP |
70 | #include "signal-util.h" |
71 | #include "dbus.h" | |
72 | #include "dbus-unit.h" | |
73 | #include "dbus-job.h" | |
74 | #include "dbus-manager.h" | |
75 | #include "manager.h" | |
76 | #include "transaction.h" | |
663996b3 | 77 | |
663996b3 | 78 | /* Initial delay and the interval for printing status messages about running jobs */ |
60f067b4 JS |
79 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
80 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
663996b3 MS |
81 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
82 | ||
60f067b4 JS |
83 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
84 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
85 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
86 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
87 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
88 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); | |
e735f4d4 MP |
89 | static int manager_run_generators(Manager *m); |
90 | static void manager_undo_generators(Manager *m); | |
663996b3 | 91 | |
e3bff60a | 92 | static void manager_watch_jobs_in_progress(Manager *m) { |
60f067b4 | 93 | usec_t next; |
e3bff60a | 94 | int r; |
663996b3 | 95 | |
60f067b4 | 96 | assert(m); |
663996b3 | 97 | |
60f067b4 | 98 | if (m->jobs_in_progress_event_source) |
e3bff60a | 99 | return; |
663996b3 | 100 | |
60f067b4 | 101 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
e3bff60a | 102 | r = sd_event_add_time( |
60f067b4 JS |
103 | m->event, |
104 | &m->jobs_in_progress_event_source, | |
105 | CLOCK_MONOTONIC, | |
106 | next, 0, | |
107 | manager_dispatch_jobs_in_progress, m); | |
e3bff60a MP |
108 | if (r < 0) |
109 | return; | |
110 | ||
111 | (void) sd_event_source_set_description(m->jobs_in_progress_event_source, "manager-jobs-in-progress"); | |
663996b3 MS |
112 | } |
113 | ||
60f067b4 | 114 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
663996b3 | 115 | |
663996b3 MS |
116 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
117 | char *p = buffer; | |
118 | ||
119 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
120 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
121 | ||
122 | if (pos > 1) { | |
123 | if (pos > 2) | |
124 | p = mempset(p, ' ', pos-2); | |
125 | p = stpcpy(p, ANSI_RED_ON); | |
126 | *p++ = '*'; | |
127 | } | |
128 | ||
129 | if (pos > 0 && pos <= width) { | |
130 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); | |
131 | *p++ = '*'; | |
132 | } | |
133 | ||
134 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); | |
135 | ||
136 | if (pos < width) { | |
137 | p = stpcpy(p, ANSI_RED_ON); | |
138 | *p++ = '*'; | |
139 | if (pos < width-1) | |
140 | p = mempset(p, ' ', width-1-pos); | |
60f067b4 JS |
141 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
142 | } | |
143 | } | |
144 | ||
145 | void manager_flip_auto_status(Manager *m, bool enable) { | |
146 | assert(m); | |
147 | ||
148 | if (enable) { | |
149 | if (m->show_status == SHOW_STATUS_AUTO) | |
150 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
151 | } else { | |
152 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
153 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
663996b3 MS |
154 | } |
155 | } | |
156 | ||
157 | static void manager_print_jobs_in_progress(Manager *m) { | |
60f067b4 | 158 | _cleanup_free_ char *job_of_n = NULL; |
663996b3 MS |
159 | Iterator i; |
160 | Job *j; | |
663996b3 MS |
161 | unsigned counter = 0, print_nr; |
162 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
163 | unsigned cylon_pos; | |
60f067b4 JS |
164 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
165 | uint64_t x; | |
166 | ||
167 | assert(m); | |
e735f4d4 | 168 | assert(m->n_running_jobs > 0); |
60f067b4 JS |
169 | |
170 | manager_flip_auto_status(m, true); | |
663996b3 MS |
171 | |
172 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
173 | ||
174 | HASHMAP_FOREACH(j, m->jobs, i) | |
175 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
176 | break; | |
177 | ||
178 | /* m->n_running_jobs must be consistent with the contents of m->jobs, | |
179 | * so the above loop must have succeeded in finding j. */ | |
180 | assert(counter == print_nr + 1); | |
60f067b4 | 181 | assert(j); |
663996b3 MS |
182 | |
183 | cylon_pos = m->jobs_in_progress_iteration % 14; | |
184 | if (cylon_pos >= 8) | |
185 | cylon_pos = 14 - cylon_pos; | |
186 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
187 | ||
60f067b4 JS |
188 | m->jobs_in_progress_iteration++; |
189 | ||
e3bff60a MP |
190 | if (m->n_running_jobs > 1) { |
191 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
192 | job_of_n = NULL; | |
193 | } | |
663996b3 | 194 | |
60f067b4 JS |
195 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
196 | if (job_get_timeout(j, &x) > 0) | |
197 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
198 | ||
5eef597e | 199 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon, |
60f067b4 JS |
200 | "%sA %s job is running for %s (%s / %s)", |
201 | strempty(job_of_n), | |
202 | job_type_to_string(j->type), | |
203 | unit_description(j->unit), | |
204 | time, limit); | |
663996b3 MS |
205 | } |
206 | ||
5eef597e MP |
207 | static int have_ask_password(void) { |
208 | _cleanup_closedir_ DIR *dir; | |
209 | ||
210 | dir = opendir("/run/systemd/ask-password"); | |
211 | if (!dir) { | |
212 | if (errno == ENOENT) | |
213 | return false; | |
214 | else | |
215 | return -errno; | |
216 | } | |
217 | ||
218 | for (;;) { | |
219 | struct dirent *de; | |
220 | ||
221 | errno = 0; | |
222 | de = readdir(dir); | |
223 | if (!de && errno != 0) | |
224 | return -errno; | |
225 | if (!de) | |
226 | return false; | |
227 | ||
228 | if (startswith(de->d_name, "ask.")) | |
229 | return true; | |
230 | } | |
231 | } | |
232 | ||
233 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
234 | int fd, uint32_t revents, void *userdata) { | |
235 | Manager *m = userdata; | |
236 | ||
237 | assert(m); | |
238 | ||
239 | flush_fd(fd); | |
240 | ||
241 | m->have_ask_password = have_ask_password(); | |
242 | if (m->have_ask_password < 0) | |
243 | /* Log error but continue. Negative have_ask_password | |
244 | * is treated as unknown status. */ | |
f47781d8 | 245 | log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m"); |
5eef597e MP |
246 | |
247 | return 0; | |
248 | } | |
249 | ||
250 | static void manager_close_ask_password(Manager *m) { | |
251 | assert(m); | |
252 | ||
5eef597e | 253 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); |
d9dfd233 | 254 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); |
5eef597e MP |
255 | m->have_ask_password = -EINVAL; |
256 | } | |
257 | ||
258 | static int manager_check_ask_password(Manager *m) { | |
259 | int r; | |
260 | ||
261 | assert(m); | |
262 | ||
263 | if (!m->ask_password_event_source) { | |
264 | assert(m->ask_password_inotify_fd < 0); | |
265 | ||
266 | mkdir_p_label("/run/systemd/ask-password", 0755); | |
267 | ||
268 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
f47781d8 MP |
269 | if (m->ask_password_inotify_fd < 0) |
270 | return log_error_errno(errno, "inotify_init1() failed: %m"); | |
5eef597e MP |
271 | |
272 | if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) { | |
f47781d8 | 273 | log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m"); |
5eef597e MP |
274 | manager_close_ask_password(m); |
275 | return -errno; | |
276 | } | |
277 | ||
278 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
279 | m->ask_password_inotify_fd, EPOLLIN, | |
280 | manager_dispatch_ask_password_fd, m); | |
281 | if (r < 0) { | |
f47781d8 | 282 | log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m"); |
5eef597e MP |
283 | manager_close_ask_password(m); |
284 | return -errno; | |
285 | } | |
286 | ||
e3bff60a MP |
287 | (void) sd_event_source_set_description(m->ask_password_event_source, "manager-ask-password"); |
288 | ||
5eef597e MP |
289 | /* Queries might have been added meanwhile... */ |
290 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
291 | m->ask_password_inotify_fd, EPOLLIN, m); | |
292 | } | |
293 | ||
294 | return m->have_ask_password; | |
295 | } | |
296 | ||
14228c0d | 297 | static int manager_watch_idle_pipe(Manager *m) { |
14228c0d MB |
298 | int r; |
299 | ||
60f067b4 JS |
300 | assert(m); |
301 | ||
302 | if (m->idle_pipe_event_source) | |
14228c0d MB |
303 | return 0; |
304 | ||
305 | if (m->idle_pipe[2] < 0) | |
306 | return 0; | |
307 | ||
60f067b4 | 308 | r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m); |
f47781d8 MP |
309 | if (r < 0) |
310 | return log_error_errno(r, "Failed to watch idle pipe: %m"); | |
14228c0d | 311 | |
e3bff60a MP |
312 | (void) sd_event_source_set_description(m->idle_pipe_event_source, "manager-idle-pipe"); |
313 | ||
14228c0d | 314 | return 0; |
14228c0d MB |
315 | } |
316 | ||
60f067b4 JS |
317 | static void manager_close_idle_pipe(Manager *m) { |
318 | assert(m); | |
14228c0d | 319 | |
60f067b4 JS |
320 | safe_close_pair(m->idle_pipe); |
321 | safe_close_pair(m->idle_pipe + 2); | |
14228c0d MB |
322 | } |
323 | ||
663996b3 | 324 | static int manager_setup_time_change(Manager *m) { |
60f067b4 | 325 | int r; |
663996b3 MS |
326 | |
327 | /* We only care for the cancellation event, hence we set the | |
328 | * timeout to the latest possible value. */ | |
329 | struct itimerspec its = { | |
330 | .it_value.tv_sec = TIME_T_MAX, | |
331 | }; | |
663996b3 | 332 | |
60f067b4 JS |
333 | assert(m); |
334 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
663996b3 | 335 | |
5eef597e MP |
336 | if (m->test_run) |
337 | return 0; | |
338 | ||
663996b3 MS |
339 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever |
340 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
341 | ||
60f067b4 | 342 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
f47781d8 MP |
343 | if (m->time_change_fd < 0) |
344 | return log_error_errno(errno, "Failed to create timerfd: %m"); | |
663996b3 | 345 | |
60f067b4 | 346 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
f47781d8 | 347 | log_debug_errno(errno, "Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
60f067b4 | 348 | m->time_change_fd = safe_close(m->time_change_fd); |
663996b3 MS |
349 | return 0; |
350 | } | |
351 | ||
60f067b4 | 352 | r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m); |
f47781d8 MP |
353 | if (r < 0) |
354 | return log_error_errno(r, "Failed to create time change event source: %m"); | |
663996b3 | 355 | |
e3bff60a MP |
356 | (void) sd_event_source_set_description(m->time_change_event_source, "manager-time-change"); |
357 | ||
663996b3 MS |
358 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
363 | static int enable_special_signals(Manager *m) { | |
60f067b4 | 364 | _cleanup_close_ int fd = -1; |
663996b3 MS |
365 | |
366 | assert(m); | |
367 | ||
368 | /* Enable that we get SIGINT on control-alt-del. In containers | |
369 | * this will fail with EPERM (older) or EINVAL (newer), so | |
370 | * ignore that. */ | |
371 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
f47781d8 | 372 | log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m"); |
663996b3 MS |
373 | |
374 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); | |
375 | if (fd < 0) { | |
376 | /* Support systems without virtual console */ | |
377 | if (fd != -ENOENT) | |
f47781d8 | 378 | log_warning_errno(errno, "Failed to open /dev/tty0: %m"); |
663996b3 MS |
379 | } else { |
380 | /* Enable that we get SIGWINCH on kbrequest */ | |
381 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f47781d8 | 382 | log_warning_errno(errno, "Failed to enable kbrequest handling: %m"); |
663996b3 MS |
383 | } |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
388 | static int manager_setup_signals(Manager *m) { | |
663996b3 MS |
389 | struct sigaction sa = { |
390 | .sa_handler = SIG_DFL, | |
391 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
392 | }; | |
60f067b4 JS |
393 | sigset_t mask; |
394 | int r; | |
663996b3 MS |
395 | |
396 | assert(m); | |
397 | ||
663996b3 MS |
398 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
399 | ||
5eef597e MP |
400 | /* We make liberal use of realtime signals here. On |
401 | * Linux/glibc we have 30 of them (with the exception of Linux | |
402 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
403 | * (aka SIGRTMAX). */ | |
663996b3 | 404 | |
5eef597e | 405 | assert_se(sigemptyset(&mask) == 0); |
663996b3 MS |
406 | sigset_add_many(&mask, |
407 | SIGCHLD, /* Child died */ | |
408 | SIGTERM, /* Reexecute daemon */ | |
409 | SIGHUP, /* Reload configuration */ | |
410 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
411 | SIGUSR2, /* systemd: dump status */ | |
412 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
413 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
414 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
5eef597e | 415 | |
663996b3 MS |
416 | SIGRTMIN+0, /* systemd: start default.target */ |
417 | SIGRTMIN+1, /* systemd: isolate rescue.target */ | |
418 | SIGRTMIN+2, /* systemd: isolate emergency.target */ | |
419 | SIGRTMIN+3, /* systemd: start halt.target */ | |
420 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
421 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
422 | SIGRTMIN+6, /* systemd: start kexec.target */ | |
5eef597e MP |
423 | |
424 | /* ... space for more special targets ... */ | |
425 | ||
663996b3 MS |
426 | SIGRTMIN+13, /* systemd: Immediate halt */ |
427 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
428 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
429 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
5eef597e MP |
430 | |
431 | /* ... space for more immediate system state changes ... */ | |
432 | ||
663996b3 MS |
433 | SIGRTMIN+20, /* systemd: enable status messages */ |
434 | SIGRTMIN+21, /* systemd: disable status messages */ | |
435 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ | |
436 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
437 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ | |
5eef597e MP |
438 | |
439 | /* .. one free signal here ... */ | |
440 | ||
441 | #if !defined(__hppa64__) && !defined(__hppa__) | |
442 | /* Apparently Linux on hppa has fewer RT | |
443 | * signals (SIGRTMAX is SIGRTMIN+25 there), | |
444 | * hence let's not try to make use of them | |
445 | * here. Since these commands are accessible | |
446 | * by different means and only really a safety | |
447 | * net, the missing functionality on hppa | |
448 | * shouldn't matter. */ | |
449 | ||
663996b3 MS |
450 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
451 | SIGRTMIN+27, /* systemd: set log target to console */ | |
452 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
e735f4d4 | 453 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete) */ |
5eef597e MP |
454 | |
455 | /* ... one free signal here SIGRTMIN+30 ... */ | |
456 | #endif | |
663996b3 MS |
457 | -1); |
458 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); | |
459 | ||
60f067b4 JS |
460 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
461 | if (m->signal_fd < 0) | |
663996b3 MS |
462 | return -errno; |
463 | ||
60f067b4 JS |
464 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
465 | if (r < 0) | |
466 | return r; | |
467 | ||
e3bff60a MP |
468 | (void) sd_event_source_set_description(m->signal_event_source, "manager-signal"); |
469 | ||
60f067b4 | 470 | /* Process signals a bit earlier than the rest of things, but |
5eef597e | 471 | * later than notify_fd processing, so that the notify |
60f067b4 JS |
472 | * processing can still figure out to which process/service a |
473 | * message belongs, before we reap the process. */ | |
474 | r = sd_event_source_set_priority(m->signal_event_source, -5); | |
475 | if (r < 0) | |
476 | return r; | |
663996b3 | 477 | |
e3bff60a | 478 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
479 | return enable_special_signals(m); |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
60f067b4 JS |
484 | static void manager_clean_environment(Manager *m) { |
485 | assert(m); | |
486 | ||
487 | /* Let's remove some environment variables that we | |
488 | * need ourselves to communicate with our clients */ | |
489 | strv_env_unset_many( | |
490 | m->environment, | |
491 | "NOTIFY_SOCKET", | |
492 | "MAINPID", | |
493 | "MANAGERPID", | |
494 | "LISTEN_PID", | |
495 | "LISTEN_FDS", | |
496 | "WATCHDOG_PID", | |
497 | "WATCHDOG_USEC", | |
498 | NULL); | |
499 | } | |
500 | ||
14228c0d | 501 | static int manager_default_environment(Manager *m) { |
663996b3 MS |
502 | assert(m); |
503 | ||
e3bff60a | 504 | if (m->running_as == MANAGER_SYSTEM) { |
14228c0d MB |
505 | /* The system manager always starts with a clean |
506 | * environment for its children. It does not import | |
507 | * the kernel or the parents exported variables. | |
508 | * | |
509 | * The initial passed environ is untouched to keep | |
510 | * /proc/self/environ valid; it is used for tagging | |
511 | * the init process inside containers. */ | |
512 | m->environment = strv_new("PATH=" DEFAULT_PATH, | |
513 | NULL); | |
514 | ||
515 | /* Import locale variables LC_*= from configuration */ | |
516 | locale_setup(&m->environment); | |
60f067b4 | 517 | } else { |
14228c0d MB |
518 | /* The user manager passes its own environment |
519 | * along to its children. */ | |
520 | m->environment = strv_copy(environ); | |
60f067b4 | 521 | } |
663996b3 | 522 | |
14228c0d MB |
523 | if (!m->environment) |
524 | return -ENOMEM; | |
663996b3 | 525 | |
60f067b4 JS |
526 | manager_clean_environment(m); |
527 | strv_sort(m->environment); | |
528 | ||
14228c0d | 529 | return 0; |
663996b3 MS |
530 | } |
531 | ||
e3bff60a MP |
532 | |
533 | int manager_new(ManagerRunningAs running_as, bool test_run, Manager **_m) { | |
534 | ||
535 | static const char * const unit_log_fields[_MANAGER_RUNNING_AS_MAX] = { | |
536 | [MANAGER_SYSTEM] = "UNIT=", | |
537 | [MANAGER_USER] = "USER_UNIT=", | |
538 | }; | |
539 | ||
540 | static const char * const unit_log_format_strings[_MANAGER_RUNNING_AS_MAX] = { | |
541 | [MANAGER_SYSTEM] = "UNIT=%s", | |
542 | [MANAGER_USER] = "USER_UNIT=%s", | |
543 | }; | |
544 | ||
663996b3 | 545 | Manager *m; |
60f067b4 | 546 | int r; |
663996b3 MS |
547 | |
548 | assert(_m); | |
549 | assert(running_as >= 0); | |
e3bff60a | 550 | assert(running_as < _MANAGER_RUNNING_AS_MAX); |
663996b3 MS |
551 | |
552 | m = new0(Manager, 1); | |
553 | if (!m) | |
554 | return -ENOMEM; | |
555 | ||
14228c0d | 556 | #ifdef ENABLE_EFI |
e3bff60a | 557 | if (running_as == MANAGER_SYSTEM && detect_container(NULL) <= 0) |
14228c0d MB |
558 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
559 | #endif | |
560 | ||
663996b3 | 561 | m->running_as = running_as; |
663996b3 | 562 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
60f067b4 | 563 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
663996b3 | 564 | |
e3bff60a MP |
565 | /* Prepare log fields we can use for structured logging */ |
566 | m->unit_log_field = unit_log_fields[running_as]; | |
567 | m->unit_log_format_string = unit_log_format_strings[running_as]; | |
568 | ||
60f067b4 | 569 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
663996b3 | 570 | |
d9dfd233 MP |
571 | m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = |
572 | m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = m->utab_inotify_fd = | |
573 | m->cgroup_inotify_fd = -1; | |
663996b3 MS |
574 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
575 | ||
5eef597e MP |
576 | m->ask_password_inotify_fd = -1; |
577 | m->have_ask_password = -EINVAL; /* we don't know */ | |
d9dfd233 | 578 | m->first_boot = -1; |
5eef597e MP |
579 | |
580 | m->test_run = test_run; | |
581 | ||
e735f4d4 MP |
582 | /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */ |
583 | RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7); | |
584 | ||
14228c0d MB |
585 | r = manager_default_environment(m); |
586 | if (r < 0) | |
663996b3 MS |
587 | goto fail; |
588 | ||
5eef597e | 589 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
60f067b4 | 590 | if (r < 0) |
663996b3 MS |
591 | goto fail; |
592 | ||
5eef597e | 593 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
60f067b4 | 594 | if (r < 0) |
663996b3 MS |
595 | goto fail; |
596 | ||
5eef597e | 597 | r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops); |
60f067b4 | 598 | if (r < 0) |
663996b3 MS |
599 | goto fail; |
600 | ||
5eef597e | 601 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
60f067b4 | 602 | if (r < 0) |
663996b3 MS |
603 | goto fail; |
604 | ||
5eef597e | 605 | r = set_ensure_allocated(&m->startup_units, NULL); |
60f067b4 | 606 | if (r < 0) |
663996b3 MS |
607 | goto fail; |
608 | ||
5eef597e | 609 | r = set_ensure_allocated(&m->failed_units, NULL); |
60f067b4 | 610 | if (r < 0) |
663996b3 MS |
611 | goto fail; |
612 | ||
60f067b4 | 613 | r = sd_event_default(&m->event); |
663996b3 MS |
614 | if (r < 0) |
615 | goto fail; | |
616 | ||
60f067b4 | 617 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
663996b3 MS |
618 | if (r < 0) |
619 | goto fail; | |
620 | ||
60f067b4 JS |
621 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); |
622 | if (r < 0) | |
623 | goto fail; | |
624 | ||
625 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
626 | if (r < 0) | |
627 | goto fail; | |
628 | ||
e3bff60a MP |
629 | (void) sd_event_source_set_description(m->run_queue_event_source, "manager-run-queue"); |
630 | ||
60f067b4 JS |
631 | r = manager_setup_signals(m); |
632 | if (r < 0) | |
633 | goto fail; | |
634 | ||
635 | r = manager_setup_cgroup(m); | |
663996b3 MS |
636 | if (r < 0) |
637 | goto fail; | |
638 | ||
639 | r = manager_setup_time_change(m); | |
640 | if (r < 0) | |
641 | goto fail; | |
642 | ||
60f067b4 JS |
643 | m->udev = udev_new(); |
644 | if (!m->udev) { | |
645 | r = -ENOMEM; | |
646 | goto fail; | |
647 | } | |
648 | ||
649 | /* Note that we set up neither kdbus, nor the notify fd | |
650 | * here. We do that after deserialization, since they might | |
651 | * have gotten serialized across the reexec. */ | |
663996b3 MS |
652 | |
653 | m->taint_usr = dir_is_empty("/usr") > 0; | |
654 | ||
655 | *_m = m; | |
656 | return 0; | |
657 | ||
658 | fail: | |
659 | manager_free(m); | |
660 | return r; | |
661 | } | |
662 | ||
60f067b4 JS |
663 | static int manager_setup_notify(Manager *m) { |
664 | int r; | |
665 | ||
5eef597e MP |
666 | if (m->test_run) |
667 | return 0; | |
668 | ||
60f067b4 JS |
669 | if (m->notify_fd < 0) { |
670 | _cleanup_close_ int fd = -1; | |
86f210e9 | 671 | union sockaddr_union sa = { |
60f067b4 JS |
672 | .sa.sa_family = AF_UNIX, |
673 | }; | |
5eef597e | 674 | static const int one = 1; |
60f067b4 JS |
675 | |
676 | /* First free all secondary fields */ | |
677 | free(m->notify_socket); | |
678 | m->notify_socket = NULL; | |
679 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
680 | ||
681 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
f47781d8 MP |
682 | if (fd < 0) |
683 | return log_error_errno(errno, "Failed to allocate notification socket: %m"); | |
60f067b4 | 684 | |
e3bff60a | 685 | if (m->running_as == MANAGER_SYSTEM) |
60f067b4 JS |
686 | m->notify_socket = strdup("/run/systemd/notify"); |
687 | else { | |
688 | const char *e; | |
689 | ||
690 | e = getenv("XDG_RUNTIME_DIR"); | |
691 | if (!e) { | |
f47781d8 | 692 | log_error_errno(errno, "XDG_RUNTIME_DIR is not set: %m"); |
60f067b4 JS |
693 | return -EINVAL; |
694 | } | |
695 | ||
696 | m->notify_socket = strappend(e, "/systemd/notify"); | |
697 | } | |
698 | if (!m->notify_socket) | |
699 | return log_oom(); | |
700 | ||
f47781d8 MP |
701 | (void) mkdir_parents_label(m->notify_socket, 0755); |
702 | (void) unlink(m->notify_socket); | |
703 | ||
60f067b4 JS |
704 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); |
705 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
f47781d8 MP |
706 | if (r < 0) |
707 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
60f067b4 JS |
708 | |
709 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
f47781d8 MP |
710 | if (r < 0) |
711 | return log_error_errno(errno, "SO_PASSCRED failed: %m"); | |
60f067b4 JS |
712 | |
713 | m->notify_fd = fd; | |
714 | fd = -1; | |
715 | ||
716 | log_debug("Using notification socket %s", m->notify_socket); | |
717 | } | |
718 | ||
719 | if (!m->notify_event_source) { | |
720 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); | |
f47781d8 MP |
721 | if (r < 0) |
722 | return log_error_errno(r, "Failed to allocate notify event source: %m"); | |
60f067b4 JS |
723 | |
724 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
725 | * still identify to which service an exit message belongs */ | |
726 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
f47781d8 MP |
727 | if (r < 0) |
728 | return log_error_errno(r, "Failed to set priority of notify event source: %m"); | |
e3bff60a MP |
729 | |
730 | (void) sd_event_source_set_description(m->notify_event_source, "manager-notify"); | |
60f067b4 JS |
731 | } |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | static int manager_setup_kdbus(Manager *m) { | |
60f067b4 | 737 | _cleanup_free_ char *p = NULL; |
60f067b4 | 738 | |
60f067b4 JS |
739 | assert(m); |
740 | ||
5eef597e | 741 | if (m->test_run || m->kdbus_fd >= 0) |
60f067b4 | 742 | return 0; |
e3bff60a MP |
743 | if (!is_kdbus_available()) |
744 | return -ESOCKTNOSUPPORT; | |
60f067b4 | 745 | |
f47781d8 | 746 | m->kdbus_fd = bus_kernel_create_bus( |
e3bff60a MP |
747 | m->running_as == MANAGER_SYSTEM ? "system" : "user", |
748 | m->running_as == MANAGER_SYSTEM, &p); | |
60f067b4 | 749 | |
f47781d8 MP |
750 | if (m->kdbus_fd < 0) |
751 | return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m"); | |
752 | ||
753 | log_debug("Successfully set up kdbus on %s", p); | |
60f067b4 JS |
754 | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
759 | bool try_bus_connect; | |
760 | ||
761 | assert(m); | |
762 | ||
5eef597e MP |
763 | if (m->test_run) |
764 | return 0; | |
765 | ||
60f067b4 JS |
766 | try_bus_connect = |
767 | m->kdbus_fd >= 0 || | |
768 | reexecuting || | |
e3bff60a | 769 | (m->running_as == MANAGER_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); |
60f067b4 | 770 | |
e3bff60a | 771 | /* Try to connect to the buses, if possible. */ |
60f067b4 JS |
772 | return bus_init(m, try_bus_connect); |
773 | } | |
774 | ||
663996b3 MS |
775 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
776 | Unit *u; | |
777 | unsigned n = 0; | |
778 | ||
779 | assert(m); | |
780 | ||
781 | while ((u = m->cleanup_queue)) { | |
782 | assert(u->in_cleanup_queue); | |
783 | ||
784 | unit_free(u); | |
785 | n++; | |
786 | } | |
787 | ||
788 | return n; | |
789 | } | |
790 | ||
791 | enum { | |
792 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ | |
793 | GC_OFFSET_UNSURE, /* No clue */ | |
794 | GC_OFFSET_GOOD, /* We still need this unit */ | |
795 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
796 | _GC_OFFSET_MAX | |
797 | }; | |
798 | ||
799 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
800 | Iterator i; | |
801 | Unit *other; | |
802 | bool is_bad; | |
803 | ||
804 | assert(u); | |
805 | ||
806 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || | |
807 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
808 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
809 | return; | |
810 | ||
811 | if (u->in_cleanup_queue) | |
812 | goto bad; | |
813 | ||
814 | if (unit_check_gc(u)) | |
815 | goto good; | |
816 | ||
817 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; | |
818 | ||
819 | is_bad = true; | |
820 | ||
821 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { | |
822 | unit_gc_sweep(other, gc_marker); | |
823 | ||
824 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) | |
825 | goto good; | |
826 | ||
827 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) | |
828 | is_bad = false; | |
829 | } | |
830 | ||
831 | if (is_bad) | |
832 | goto bad; | |
833 | ||
834 | /* We were unable to find anything out about this entry, so | |
835 | * let's investigate it later */ | |
836 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; | |
837 | unit_add_to_gc_queue(u); | |
838 | return; | |
839 | ||
840 | bad: | |
841 | /* We definitely know that this one is not useful anymore, so | |
842 | * let's mark it for deletion */ | |
843 | u->gc_marker = gc_marker + GC_OFFSET_BAD; | |
844 | unit_add_to_cleanup_queue(u); | |
845 | return; | |
846 | ||
847 | good: | |
848 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; | |
849 | } | |
850 | ||
851 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
852 | Unit *u; | |
853 | unsigned n = 0; | |
854 | unsigned gc_marker; | |
855 | ||
856 | assert(m); | |
857 | ||
14228c0d | 858 | /* log_debug("Running GC..."); */ |
663996b3 MS |
859 | |
860 | m->gc_marker += _GC_OFFSET_MAX; | |
861 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
862 | m->gc_marker = 1; | |
863 | ||
864 | gc_marker = m->gc_marker; | |
865 | ||
866 | while ((u = m->gc_queue)) { | |
867 | assert(u->in_gc_queue); | |
868 | ||
869 | unit_gc_sweep(u, gc_marker); | |
870 | ||
60f067b4 | 871 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
663996b3 MS |
872 | u->in_gc_queue = false; |
873 | ||
874 | n++; | |
875 | ||
876 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
877 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
e3bff60a MP |
878 | if (u->id) |
879 | log_unit_debug(u, "Collecting."); | |
663996b3 MS |
880 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
881 | unit_add_to_cleanup_queue(u); | |
882 | } | |
883 | } | |
884 | ||
885 | m->n_in_gc_queue = 0; | |
663996b3 MS |
886 | |
887 | return n; | |
888 | } | |
889 | ||
890 | static void manager_clear_jobs_and_units(Manager *m) { | |
891 | Unit *u; | |
892 | ||
893 | assert(m); | |
894 | ||
895 | while ((u = hashmap_first(m->units))) | |
896 | unit_free(u); | |
897 | ||
898 | manager_dispatch_cleanup_queue(m); | |
899 | ||
900 | assert(!m->load_queue); | |
901 | assert(!m->run_queue); | |
902 | assert(!m->dbus_unit_queue); | |
903 | assert(!m->dbus_job_queue); | |
904 | assert(!m->cleanup_queue); | |
905 | assert(!m->gc_queue); | |
906 | ||
907 | assert(hashmap_isempty(m->jobs)); | |
908 | assert(hashmap_isempty(m->units)); | |
909 | ||
910 | m->n_on_console = 0; | |
911 | m->n_running_jobs = 0; | |
912 | } | |
913 | ||
f47781d8 | 914 | Manager* manager_free(Manager *m) { |
663996b3 MS |
915 | UnitType c; |
916 | int i; | |
917 | ||
f47781d8 MP |
918 | if (!m) |
919 | return NULL; | |
663996b3 MS |
920 | |
921 | manager_clear_jobs_and_units(m); | |
922 | ||
923 | for (c = 0; c < _UNIT_TYPE_MAX; c++) | |
924 | if (unit_vtable[c]->shutdown) | |
925 | unit_vtable[c]->shutdown(m); | |
926 | ||
927 | /* If we reexecute ourselves, we keep the root cgroup | |
928 | * around */ | |
929 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); | |
930 | ||
931 | manager_undo_generators(m); | |
932 | ||
933 | bus_done(m); | |
934 | ||
935 | hashmap_free(m->units); | |
936 | hashmap_free(m->jobs); | |
60f067b4 JS |
937 | hashmap_free(m->watch_pids1); |
938 | hashmap_free(m->watch_pids2); | |
663996b3 MS |
939 | hashmap_free(m->watch_bus); |
940 | ||
60f067b4 JS |
941 | set_free(m->startup_units); |
942 | set_free(m->failed_units); | |
943 | ||
944 | sd_event_source_unref(m->signal_event_source); | |
945 | sd_event_source_unref(m->notify_event_source); | |
946 | sd_event_source_unref(m->time_change_event_source); | |
947 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
948 | sd_event_source_unref(m->idle_pipe_event_source); | |
949 | sd_event_source_unref(m->run_queue_event_source); | |
950 | ||
951 | safe_close(m->signal_fd); | |
952 | safe_close(m->notify_fd); | |
953 | safe_close(m->time_change_fd); | |
954 | safe_close(m->kdbus_fd); | |
955 | ||
5eef597e MP |
956 | manager_close_ask_password(m); |
957 | ||
60f067b4 JS |
958 | manager_close_idle_pipe(m); |
959 | ||
960 | udev_unref(m->udev); | |
961 | sd_event_unref(m->event); | |
663996b3 MS |
962 | |
963 | free(m->notify_socket); | |
964 | ||
965 | lookup_paths_free(&m->lookup_paths); | |
966 | strv_free(m->environment); | |
967 | ||
14228c0d | 968 | hashmap_free(m->cgroup_unit); |
663996b3 MS |
969 | set_free_free(m->unit_path_cache); |
970 | ||
663996b3 MS |
971 | free(m->switch_root); |
972 | free(m->switch_root_init); | |
973 | ||
60f067b4 | 974 | for (i = 0; i < _RLIMIT_MAX; i++) |
663996b3 MS |
975 | free(m->rlimit[i]); |
976 | ||
14228c0d MB |
977 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
978 | hashmap_free(m->units_requiring_mounts_for); | |
979 | ||
663996b3 | 980 | free(m); |
f47781d8 | 981 | return NULL; |
663996b3 MS |
982 | } |
983 | ||
984 | int manager_enumerate(Manager *m) { | |
e735f4d4 | 985 | int r = 0; |
663996b3 MS |
986 | UnitType c; |
987 | ||
988 | assert(m); | |
989 | ||
990 | /* Let's ask every type to load all units from disk/kernel | |
991 | * that it might know */ | |
e735f4d4 MP |
992 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { |
993 | int q; | |
994 | ||
e3bff60a MP |
995 | if (!unit_type_supported(c)) { |
996 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); | |
e735f4d4 | 997 | continue; |
14228c0d | 998 | } |
663996b3 | 999 | |
e735f4d4 MP |
1000 | if (!unit_vtable[c]->enumerate) |
1001 | continue; | |
1002 | ||
1003 | q = unit_vtable[c]->enumerate(m); | |
1004 | if (q < 0) | |
1005 | r = q; | |
1006 | } | |
1007 | ||
663996b3 MS |
1008 | manager_dispatch_load_queue(m); |
1009 | return r; | |
1010 | } | |
1011 | ||
e3bff60a | 1012 | static void manager_coldplug(Manager *m) { |
663996b3 MS |
1013 | Iterator i; |
1014 | Unit *u; | |
1015 | char *k; | |
e3bff60a | 1016 | int r; |
663996b3 MS |
1017 | |
1018 | assert(m); | |
1019 | ||
1020 | /* Then, let's set up their initial state. */ | |
1021 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
1022 | ||
1023 | /* ignore aliases */ | |
1024 | if (u->id != k) | |
1025 | continue; | |
1026 | ||
e3bff60a MP |
1027 | r = unit_coldplug(u); |
1028 | if (r < 0) | |
1029 | log_warning_errno(r, "We couldn't coldplug %s, proceeding anyway: %m", u->id); | |
663996b3 | 1030 | } |
663996b3 MS |
1031 | } |
1032 | ||
1033 | static void manager_build_unit_path_cache(Manager *m) { | |
1034 | char **i; | |
5eef597e | 1035 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
1036 | int r; |
1037 | ||
1038 | assert(m); | |
1039 | ||
1040 | set_free_free(m->unit_path_cache); | |
1041 | ||
5eef597e | 1042 | m->unit_path_cache = set_new(&string_hash_ops); |
663996b3 MS |
1043 | if (!m->unit_path_cache) { |
1044 | log_error("Failed to allocate unit path cache."); | |
1045 | return; | |
1046 | } | |
1047 | ||
1048 | /* This simply builds a list of files we know exist, so that | |
1049 | * we don't always have to go to disk */ | |
1050 | ||
1051 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
1052 | struct dirent *de; | |
1053 | ||
1054 | d = opendir(*i); | |
1055 | if (!d) { | |
1056 | if (errno != ENOENT) | |
f47781d8 | 1057 | log_error_errno(errno, "Failed to open directory %s: %m", *i); |
663996b3 MS |
1058 | continue; |
1059 | } | |
1060 | ||
1061 | while ((de = readdir(d))) { | |
1062 | char *p; | |
1063 | ||
e735f4d4 | 1064 | if (hidden_file(de->d_name)) |
663996b3 MS |
1065 | continue; |
1066 | ||
1067 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); | |
1068 | if (!p) { | |
1069 | r = -ENOMEM; | |
1070 | goto fail; | |
1071 | } | |
1072 | ||
1073 | r = set_consume(m->unit_path_cache, p); | |
1074 | if (r < 0) | |
1075 | goto fail; | |
1076 | } | |
1077 | ||
1078 | closedir(d); | |
1079 | d = NULL; | |
1080 | } | |
1081 | ||
1082 | return; | |
1083 | ||
1084 | fail: | |
f47781d8 | 1085 | log_error_errno(r, "Failed to build unit path cache: %m"); |
663996b3 MS |
1086 | |
1087 | set_free_free(m->unit_path_cache); | |
1088 | m->unit_path_cache = NULL; | |
1089 | } | |
1090 | ||
60f067b4 JS |
1091 | |
1092 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
1093 | Unit *u; | |
1094 | Iterator i; | |
1095 | int r; | |
1096 | ||
1097 | assert(m); | |
1098 | ||
1099 | HASHMAP_FOREACH(u, m->units, i) { | |
1100 | ||
1101 | if (fdset_size(fds) <= 0) | |
1102 | break; | |
1103 | ||
1104 | if (UNIT_VTABLE(u)->distribute_fds) { | |
1105 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
1106 | if (r < 0) | |
1107 | return r; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | return 0; | |
1112 | } | |
1113 | ||
663996b3 MS |
1114 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
1115 | int r, q; | |
1116 | ||
1117 | assert(m); | |
1118 | ||
14228c0d | 1119 | dual_timestamp_get(&m->generators_start_timestamp); |
e735f4d4 | 1120 | r = manager_run_generators(m); |
14228c0d | 1121 | dual_timestamp_get(&m->generators_finish_timestamp); |
e735f4d4 MP |
1122 | if (r < 0) |
1123 | return r; | |
663996b3 MS |
1124 | |
1125 | r = lookup_paths_init( | |
1126 | &m->lookup_paths, m->running_as, true, | |
60f067b4 | 1127 | NULL, |
663996b3 MS |
1128 | m->generator_unit_path, |
1129 | m->generator_unit_path_early, | |
1130 | m->generator_unit_path_late); | |
1131 | if (r < 0) | |
1132 | return r; | |
1133 | ||
1134 | manager_build_unit_path_cache(m); | |
1135 | ||
1136 | /* If we will deserialize make sure that during enumeration | |
1137 | * this is already known, so we increase the counter here | |
1138 | * already */ | |
1139 | if (serialization) | |
1140 | m->n_reloading ++; | |
1141 | ||
1142 | /* First, enumerate what we can from all config files */ | |
60f067b4 | 1143 | dual_timestamp_get(&m->units_load_start_timestamp); |
663996b3 | 1144 | r = manager_enumerate(m); |
60f067b4 | 1145 | dual_timestamp_get(&m->units_load_finish_timestamp); |
663996b3 MS |
1146 | |
1147 | /* Second, deserialize if there is something to deserialize */ | |
5eef597e MP |
1148 | if (serialization) |
1149 | r = manager_deserialize(m, serialization, fds); | |
663996b3 MS |
1150 | |
1151 | /* Any fds left? Find some unit which wants them. This is | |
1152 | * useful to allow container managers to pass some file | |
1153 | * descriptors to us pre-initialized. This enables | |
1154 | * socket-based activation of entire containers. */ | |
1155 | if (fdset_size(fds) > 0) { | |
1156 | q = manager_distribute_fds(m, fds); | |
5eef597e | 1157 | if (q < 0 && r == 0) |
663996b3 MS |
1158 | r = q; |
1159 | } | |
1160 | ||
60f067b4 JS |
1161 | /* We might have deserialized the notify fd, but if we didn't |
1162 | * then let's create the bus now */ | |
5eef597e MP |
1163 | q = manager_setup_notify(m); |
1164 | if (q < 0 && r == 0) | |
1165 | r = q; | |
60f067b4 JS |
1166 | |
1167 | /* We might have deserialized the kdbus control fd, but if we | |
1168 | * didn't, then let's create the bus now. */ | |
1169 | manager_setup_kdbus(m); | |
1170 | manager_connect_bus(m, !!serialization); | |
1171 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); | |
1172 | ||
663996b3 | 1173 | /* Third, fire things up! */ |
e3bff60a | 1174 | manager_coldplug(m); |
663996b3 MS |
1175 | |
1176 | if (serialization) { | |
1177 | assert(m->n_reloading > 0); | |
1178 | m->n_reloading --; | |
14228c0d MB |
1179 | |
1180 | /* Let's wait for the UnitNew/JobNew messages being | |
1181 | * sent, before we notify that the reload is | |
1182 | * finished */ | |
1183 | m->send_reloading_done = true; | |
663996b3 MS |
1184 | } |
1185 | ||
1186 | return r; | |
1187 | } | |
1188 | ||
60f067b4 | 1189 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
663996b3 MS |
1190 | int r; |
1191 | Transaction *tr; | |
1192 | ||
1193 | assert(m); | |
1194 | assert(type < _JOB_TYPE_MAX); | |
1195 | assert(unit); | |
1196 | assert(mode < _JOB_MODE_MAX); | |
1197 | ||
f47781d8 MP |
1198 | if (mode == JOB_ISOLATE && type != JOB_START) |
1199 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); | |
663996b3 | 1200 | |
f47781d8 MP |
1201 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
1202 | return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); | |
663996b3 | 1203 | |
e3bff60a | 1204 | log_unit_debug(unit, "Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); |
663996b3 | 1205 | |
e3bff60a | 1206 | type = job_type_collapse(type, unit); |
663996b3 MS |
1207 | |
1208 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); | |
1209 | if (!tr) | |
1210 | return -ENOMEM; | |
1211 | ||
1212 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, | |
1213 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
1214 | mode == JOB_IGNORE_DEPENDENCIES, e); | |
1215 | if (r < 0) | |
1216 | goto tr_abort; | |
1217 | ||
1218 | if (mode == JOB_ISOLATE) { | |
1219 | r = transaction_add_isolate_jobs(tr, m); | |
1220 | if (r < 0) | |
1221 | goto tr_abort; | |
1222 | } | |
1223 | ||
1224 | r = transaction_activate(tr, m, mode, e); | |
1225 | if (r < 0) | |
1226 | goto tr_abort; | |
1227 | ||
e3bff60a | 1228 | log_unit_debug(unit, |
663996b3 MS |
1229 | "Enqueued job %s/%s as %u", unit->id, |
1230 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
1231 | ||
1232 | if (_ret) | |
1233 | *_ret = tr->anchor_job; | |
1234 | ||
1235 | transaction_free(tr); | |
1236 | return 0; | |
1237 | ||
1238 | tr_abort: | |
1239 | transaction_abort(tr); | |
1240 | transaction_free(tr); | |
1241 | return r; | |
1242 | } | |
1243 | ||
60f067b4 | 1244 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
663996b3 MS |
1245 | Unit *unit; |
1246 | int r; | |
1247 | ||
1248 | assert(m); | |
1249 | assert(type < _JOB_TYPE_MAX); | |
1250 | assert(name); | |
1251 | assert(mode < _JOB_MODE_MAX); | |
1252 | ||
1253 | r = manager_load_unit(m, name, NULL, NULL, &unit); | |
1254 | if (r < 0) | |
1255 | return r; | |
1256 | ||
1257 | return manager_add_job(m, type, unit, mode, override, e, _ret); | |
1258 | } | |
1259 | ||
1260 | Job *manager_get_job(Manager *m, uint32_t id) { | |
1261 | assert(m); | |
1262 | ||
1263 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1264 | } | |
1265 | ||
1266 | Unit *manager_get_unit(Manager *m, const char *name) { | |
1267 | assert(m); | |
1268 | assert(name); | |
1269 | ||
1270 | return hashmap_get(m->units, name); | |
1271 | } | |
1272 | ||
1273 | unsigned manager_dispatch_load_queue(Manager *m) { | |
1274 | Unit *u; | |
1275 | unsigned n = 0; | |
1276 | ||
1277 | assert(m); | |
1278 | ||
1279 | /* Make sure we are not run recursively */ | |
1280 | if (m->dispatching_load_queue) | |
1281 | return 0; | |
1282 | ||
1283 | m->dispatching_load_queue = true; | |
1284 | ||
1285 | /* Dispatches the load queue. Takes a unit from the queue and | |
1286 | * tries to load its data until the queue is empty */ | |
1287 | ||
1288 | while ((u = m->load_queue)) { | |
1289 | assert(u->in_load_queue); | |
1290 | ||
1291 | unit_load(u); | |
1292 | n++; | |
1293 | } | |
1294 | ||
1295 | m->dispatching_load_queue = false; | |
1296 | return n; | |
1297 | } | |
1298 | ||
14228c0d MB |
1299 | int manager_load_unit_prepare( |
1300 | Manager *m, | |
1301 | const char *name, | |
1302 | const char *path, | |
60f067b4 | 1303 | sd_bus_error *e, |
14228c0d MB |
1304 | Unit **_ret) { |
1305 | ||
663996b3 MS |
1306 | Unit *ret; |
1307 | UnitType t; | |
1308 | int r; | |
1309 | ||
1310 | assert(m); | |
1311 | assert(name || path); | |
1312 | ||
1313 | /* This will prepare the unit for loading, but not actually | |
1314 | * load anything from disk. */ | |
1315 | ||
60f067b4 JS |
1316 | if (path && !is_path(path)) |
1317 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
663996b3 MS |
1318 | |
1319 | if (!name) | |
60f067b4 | 1320 | name = basename(path); |
663996b3 MS |
1321 | |
1322 | t = unit_name_to_type(name); | |
1323 | ||
e3bff60a | 1324 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
60f067b4 | 1325 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
663996b3 MS |
1326 | |
1327 | ret = manager_get_unit(m, name); | |
1328 | if (ret) { | |
1329 | *_ret = ret; | |
1330 | return 1; | |
1331 | } | |
1332 | ||
1333 | ret = unit_new(m, unit_vtable[t]->object_size); | |
1334 | if (!ret) | |
1335 | return -ENOMEM; | |
1336 | ||
1337 | if (path) { | |
1338 | ret->fragment_path = strdup(path); | |
1339 | if (!ret->fragment_path) { | |
1340 | unit_free(ret); | |
1341 | return -ENOMEM; | |
1342 | } | |
1343 | } | |
1344 | ||
14228c0d MB |
1345 | r = unit_add_name(ret, name); |
1346 | if (r < 0) { | |
663996b3 MS |
1347 | unit_free(ret); |
1348 | return r; | |
1349 | } | |
1350 | ||
1351 | unit_add_to_load_queue(ret); | |
1352 | unit_add_to_dbus_queue(ret); | |
1353 | unit_add_to_gc_queue(ret); | |
1354 | ||
1355 | if (_ret) | |
1356 | *_ret = ret; | |
1357 | ||
1358 | return 0; | |
1359 | } | |
1360 | ||
14228c0d MB |
1361 | int manager_load_unit( |
1362 | Manager *m, | |
1363 | const char *name, | |
1364 | const char *path, | |
60f067b4 | 1365 | sd_bus_error *e, |
14228c0d MB |
1366 | Unit **_ret) { |
1367 | ||
663996b3 MS |
1368 | int r; |
1369 | ||
1370 | assert(m); | |
1371 | ||
1372 | /* This will load the service information files, but not actually | |
1373 | * start any services or anything. */ | |
1374 | ||
1375 | r = manager_load_unit_prepare(m, name, path, e, _ret); | |
1376 | if (r != 0) | |
1377 | return r; | |
1378 | ||
1379 | manager_dispatch_load_queue(m); | |
1380 | ||
1381 | if (_ret) | |
1382 | *_ret = unit_follow_merge(*_ret); | |
1383 | ||
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { | |
1388 | Iterator i; | |
1389 | Job *j; | |
1390 | ||
1391 | assert(s); | |
1392 | assert(f); | |
1393 | ||
1394 | HASHMAP_FOREACH(j, s->jobs, i) | |
1395 | job_dump(j, f, prefix); | |
1396 | } | |
1397 | ||
1398 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { | |
1399 | Iterator i; | |
1400 | Unit *u; | |
1401 | const char *t; | |
1402 | ||
1403 | assert(s); | |
1404 | assert(f); | |
1405 | ||
1406 | HASHMAP_FOREACH_KEY(u, t, s->units, i) | |
1407 | if (u->id == t) | |
1408 | unit_dump(u, f, prefix); | |
1409 | } | |
1410 | ||
1411 | void manager_clear_jobs(Manager *m) { | |
1412 | Job *j; | |
1413 | ||
1414 | assert(m); | |
1415 | ||
1416 | while ((j = hashmap_first(m->jobs))) | |
1417 | /* No need to recurse. We're cancelling all jobs. */ | |
1418 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
1419 | } | |
1420 | ||
60f067b4 JS |
1421 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1422 | Manager *m = userdata; | |
663996b3 | 1423 | Job *j; |
663996b3 | 1424 | |
60f067b4 JS |
1425 | assert(source); |
1426 | assert(m); | |
663996b3 MS |
1427 | |
1428 | while ((j = m->run_queue)) { | |
1429 | assert(j->installed); | |
1430 | assert(j->in_run_queue); | |
1431 | ||
1432 | job_run_and_invalidate(j); | |
663996b3 MS |
1433 | } |
1434 | ||
663996b3 MS |
1435 | if (m->n_running_jobs > 0) |
1436 | manager_watch_jobs_in_progress(m); | |
1437 | ||
14228c0d MB |
1438 | if (m->n_on_console > 0) |
1439 | manager_watch_idle_pipe(m); | |
1440 | ||
60f067b4 | 1441 | return 1; |
663996b3 MS |
1442 | } |
1443 | ||
60f067b4 | 1444 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
663996b3 MS |
1445 | Job *j; |
1446 | Unit *u; | |
1447 | unsigned n = 0; | |
1448 | ||
1449 | assert(m); | |
1450 | ||
1451 | if (m->dispatching_dbus_queue) | |
1452 | return 0; | |
1453 | ||
1454 | m->dispatching_dbus_queue = true; | |
1455 | ||
1456 | while ((u = m->dbus_unit_queue)) { | |
1457 | assert(u->in_dbus_queue); | |
1458 | ||
1459 | bus_unit_send_change_signal(u); | |
1460 | n++; | |
1461 | } | |
1462 | ||
1463 | while ((j = m->dbus_job_queue)) { | |
1464 | assert(j->in_dbus_queue); | |
1465 | ||
1466 | bus_job_send_change_signal(j); | |
1467 | n++; | |
1468 | } | |
1469 | ||
1470 | m->dispatching_dbus_queue = false; | |
14228c0d MB |
1471 | |
1472 | if (m->send_reloading_done) { | |
1473 | m->send_reloading_done = false; | |
1474 | ||
60f067b4 | 1475 | bus_manager_send_reloading(m, false); |
14228c0d MB |
1476 | } |
1477 | ||
60f067b4 JS |
1478 | if (m->queued_message) |
1479 | bus_send_queued_message(m); | |
1480 | ||
663996b3 MS |
1481 | return n; |
1482 | } | |
1483 | ||
e735f4d4 | 1484 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n, FDSet *fds) { |
60f067b4 JS |
1485 | _cleanup_strv_free_ char **tags = NULL; |
1486 | ||
1487 | assert(m); | |
1488 | assert(u); | |
1489 | assert(buf); | |
1490 | assert(n > 0); | |
1491 | ||
1492 | tags = strv_split(buf, "\n\r"); | |
1493 | if (!tags) { | |
1494 | log_oom(); | |
1495 | return; | |
1496 | } | |
1497 | ||
60f067b4 | 1498 | if (UNIT_VTABLE(u)->notify_message) |
e735f4d4 | 1499 | UNIT_VTABLE(u)->notify_message(u, pid, tags, fds); |
e3bff60a MP |
1500 | else |
1501 | log_unit_debug(u, "Got notification message for unit. Ignoring."); | |
60f067b4 JS |
1502 | } |
1503 | ||
1504 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { | |
1505 | Manager *m = userdata; | |
663996b3 | 1506 | ssize_t n; |
e735f4d4 | 1507 | int r; |
663996b3 MS |
1508 | |
1509 | assert(m); | |
60f067b4 JS |
1510 | assert(m->notify_fd == fd); |
1511 | ||
1512 | if (revents != EPOLLIN) { | |
1513 | log_warning("Got unexpected poll event for notify fd."); | |
1514 | return 0; | |
1515 | } | |
663996b3 MS |
1516 | |
1517 | for (;;) { | |
e735f4d4 MP |
1518 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1519 | char buf[NOTIFY_BUFFER_MAX+1]; | |
663996b3 MS |
1520 | struct iovec iovec = { |
1521 | .iov_base = buf, | |
1522 | .iov_len = sizeof(buf)-1, | |
1523 | }; | |
663996b3 MS |
1524 | union { |
1525 | struct cmsghdr cmsghdr; | |
e735f4d4 MP |
1526 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + |
1527 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
663996b3 | 1528 | } control = {}; |
663996b3 MS |
1529 | struct msghdr msghdr = { |
1530 | .msg_iov = &iovec, | |
1531 | .msg_iovlen = 1, | |
1532 | .msg_control = &control, | |
1533 | .msg_controllen = sizeof(control), | |
1534 | }; | |
e735f4d4 MP |
1535 | struct cmsghdr *cmsg; |
1536 | struct ucred *ucred = NULL; | |
1537 | bool found = false; | |
5eef597e | 1538 | Unit *u1, *u2, *u3; |
e735f4d4 MP |
1539 | int *fd_array = NULL; |
1540 | unsigned n_fds = 0; | |
663996b3 | 1541 | |
e735f4d4 MP |
1542 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1543 | if (n < 0) { | |
663996b3 MS |
1544 | if (errno == EAGAIN || errno == EINTR) |
1545 | break; | |
1546 | ||
1547 | return -errno; | |
1548 | } | |
1549 | ||
86f210e9 | 1550 | CMSG_FOREACH(cmsg, &msghdr) { |
e735f4d4 MP |
1551 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { |
1552 | ||
1553 | fd_array = (int*) CMSG_DATA(cmsg); | |
1554 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
1555 | ||
1556 | } else if (cmsg->cmsg_level == SOL_SOCKET && | |
1557 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1558 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
1559 | ||
1560 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
1561 | } | |
1562 | } | |
1563 | ||
1564 | if (n_fds > 0) { | |
1565 | assert(fd_array); | |
1566 | ||
1567 | r = fdset_new_array(&fds, fd_array, n_fds); | |
1568 | if (r < 0) { | |
1569 | close_many(fd_array, n_fds); | |
1570 | return log_oom(); | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | if (!ucred || ucred->pid <= 0) { | |
1575 | log_warning("Received notify message without valid credentials. Ignoring."); | |
663996b3 MS |
1576 | continue; |
1577 | } | |
1578 | ||
e735f4d4 MP |
1579 | if ((size_t) n >= sizeof(buf)) { |
1580 | log_warning("Received notify message exceeded maximum size. Ignoring."); | |
1581 | continue; | |
1582 | } | |
663996b3 | 1583 | |
663996b3 | 1584 | buf[n] = 0; |
663996b3 | 1585 | |
5eef597e MP |
1586 | /* Notify every unit that might be interested, but try |
1587 | * to avoid notifying the same one multiple times. */ | |
d9dfd233 | 1588 | u1 = manager_get_unit_by_pid_cgroup(m, ucred->pid); |
5eef597e | 1589 | if (u1) { |
e735f4d4 | 1590 | manager_invoke_notify_message(m, u1, ucred->pid, buf, n, fds); |
60f067b4 JS |
1591 | found = true; |
1592 | } | |
1593 | ||
d9dfd233 | 1594 | u2 = hashmap_get(m->watch_pids1, PID_TO_PTR(ucred->pid)); |
5eef597e | 1595 | if (u2 && u2 != u1) { |
e735f4d4 | 1596 | manager_invoke_notify_message(m, u2, ucred->pid, buf, n, fds); |
60f067b4 JS |
1597 | found = true; |
1598 | } | |
663996b3 | 1599 | |
d9dfd233 | 1600 | u3 = hashmap_get(m->watch_pids2, PID_TO_PTR(ucred->pid)); |
5eef597e | 1601 | if (u3 && u3 != u2 && u3 != u1) { |
e735f4d4 | 1602 | manager_invoke_notify_message(m, u3, ucred->pid, buf, n, fds); |
60f067b4 JS |
1603 | found = true; |
1604 | } | |
1605 | ||
1606 | if (!found) | |
1607 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
e735f4d4 MP |
1608 | |
1609 | if (fdset_size(fds) > 0) | |
1610 | log_warning("Got auxiliary fds with notification message, closing all."); | |
663996b3 MS |
1611 | } |
1612 | ||
1613 | return 0; | |
1614 | } | |
1615 | ||
60f067b4 JS |
1616 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1617 | assert(m); | |
1618 | assert(u); | |
1619 | assert(si); | |
1620 | ||
e3bff60a | 1621 | log_unit_debug(u, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); |
60f067b4 JS |
1622 | |
1623 | unit_unwatch_pid(u, si->si_pid); | |
1624 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1625 | } | |
1626 | ||
663996b3 MS |
1627 | static int manager_dispatch_sigchld(Manager *m) { |
1628 | assert(m); | |
1629 | ||
1630 | for (;;) { | |
1631 | siginfo_t si = {}; | |
663996b3 MS |
1632 | |
1633 | /* First we call waitd() for a PID and do not reap the | |
1634 | * zombie. That way we can still access /proc/$PID for | |
1635 | * it while it is a zombie. */ | |
1636 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
1637 | ||
1638 | if (errno == ECHILD) | |
1639 | break; | |
1640 | ||
1641 | if (errno == EINTR) | |
1642 | continue; | |
1643 | ||
1644 | return -errno; | |
1645 | } | |
1646 | ||
1647 | if (si.si_pid <= 0) | |
1648 | break; | |
1649 | ||
1650 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { | |
1651 | _cleanup_free_ char *name = NULL; | |
5eef597e | 1652 | Unit *u1, *u2, *u3; |
663996b3 MS |
1653 | |
1654 | get_process_comm(si.si_pid, &name); | |
663996b3 | 1655 | |
60f067b4 JS |
1656 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1657 | si.si_pid, strna(name), | |
1658 | sigchld_code_to_string(si.si_code), | |
1659 | si.si_status, | |
1660 | strna(si.si_code == CLD_EXITED | |
1661 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1662 | : signal_to_string(si.si_status))); | |
663996b3 | 1663 | |
60f067b4 JS |
1664 | /* And now figure out the unit this belongs |
1665 | * to, it might be multiple... */ | |
d9dfd233 | 1666 | u1 = manager_get_unit_by_pid_cgroup(m, si.si_pid); |
5eef597e MP |
1667 | if (u1) |
1668 | invoke_sigchld_event(m, u1, &si); | |
d9dfd233 | 1669 | u2 = hashmap_get(m->watch_pids1, PID_TO_PTR(si.si_pid)); |
5eef597e MP |
1670 | if (u2 && u2 != u1) |
1671 | invoke_sigchld_event(m, u2, &si); | |
d9dfd233 | 1672 | u3 = hashmap_get(m->watch_pids2, PID_TO_PTR(si.si_pid)); |
5eef597e MP |
1673 | if (u3 && u3 != u2 && u3 != u1) |
1674 | invoke_sigchld_event(m, u3, &si); | |
60f067b4 | 1675 | } |
663996b3 MS |
1676 | |
1677 | /* And now, we actually reap the zombie. */ | |
1678 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1679 | if (errno == EINTR) | |
1680 | continue; | |
1681 | ||
1682 | return -errno; | |
60f067b4 | 1683 | } |
663996b3 MS |
1684 | } |
1685 | ||
1686 | return 0; | |
1687 | } | |
1688 | ||
1689 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { | |
60f067b4 | 1690 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
663996b3 | 1691 | int r; |
663996b3 | 1692 | |
e3bff60a | 1693 | log_debug("Activating special unit %s", name); |
663996b3 MS |
1694 | |
1695 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); | |
1696 | if (r < 0) | |
e3bff60a | 1697 | log_error("Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
663996b3 MS |
1698 | |
1699 | return r; | |
1700 | } | |
1701 | ||
60f067b4 JS |
1702 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1703 | Manager *m = userdata; | |
663996b3 MS |
1704 | ssize_t n; |
1705 | struct signalfd_siginfo sfsi; | |
1706 | bool sigchld = false; | |
5fd56512 | 1707 | int r; |
663996b3 MS |
1708 | |
1709 | assert(m); | |
60f067b4 JS |
1710 | assert(m->signal_fd == fd); |
1711 | ||
1712 | if (revents != EPOLLIN) { | |
1713 | log_warning("Got unexpected events from signal file descriptor."); | |
1714 | return 0; | |
1715 | } | |
663996b3 MS |
1716 | |
1717 | for (;;) { | |
60f067b4 | 1718 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
663996b3 MS |
1719 | if (n != sizeof(sfsi)) { |
1720 | ||
1721 | if (n >= 0) | |
1722 | return -EIO; | |
1723 | ||
1724 | if (errno == EINTR || errno == EAGAIN) | |
1725 | break; | |
1726 | ||
1727 | return -errno; | |
1728 | } | |
1729 | ||
60f067b4 | 1730 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
e3bff60a | 1731 | (sfsi.ssi_signo == SIGTERM && m->running_as == MANAGER_USER) |
60f067b4 JS |
1732 | ? LOG_DEBUG : LOG_INFO, |
1733 | &sfsi); | |
663996b3 MS |
1734 | |
1735 | switch (sfsi.ssi_signo) { | |
1736 | ||
1737 | case SIGCHLD: | |
1738 | sigchld = true; | |
1739 | break; | |
1740 | ||
1741 | case SIGTERM: | |
e3bff60a | 1742 | if (m->running_as == MANAGER_SYSTEM) { |
663996b3 MS |
1743 | /* This is for compatibility with the |
1744 | * original sysvinit */ | |
1745 | m->exit_code = MANAGER_REEXECUTE; | |
1746 | break; | |
1747 | } | |
1748 | ||
1749 | /* Fall through */ | |
1750 | ||
1751 | case SIGINT: | |
e3bff60a | 1752 | if (m->running_as == MANAGER_SYSTEM) { |
e735f4d4 MP |
1753 | |
1754 | /* If the user presses C-A-D more than | |
1755 | * 7 times within 2s, we reboot | |
1756 | * immediately. */ | |
1757 | ||
1758 | if (ratelimit_test(&m->ctrl_alt_del_ratelimit)) | |
1759 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); | |
1760 | else { | |
1761 | log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); | |
1762 | status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); | |
1763 | m->exit_code = MANAGER_REBOOT; | |
1764 | } | |
1765 | ||
663996b3 MS |
1766 | break; |
1767 | } | |
1768 | ||
1769 | /* Run the exit target if there is one, if not, just exit. */ | |
1770 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { | |
1771 | m->exit_code = MANAGER_EXIT; | |
1772 | return 0; | |
1773 | } | |
1774 | ||
1775 | break; | |
1776 | ||
1777 | case SIGWINCH: | |
e3bff60a | 1778 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
1779 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
1780 | ||
1781 | /* This is a nop on non-init */ | |
1782 | break; | |
1783 | ||
1784 | case SIGPWR: | |
e3bff60a | 1785 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
1786 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
1787 | ||
1788 | /* This is a nop on non-init */ | |
1789 | break; | |
1790 | ||
1791 | case SIGUSR1: { | |
1792 | Unit *u; | |
1793 | ||
1794 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1795 | ||
1796 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1797 | log_info("Trying to reconnect to bus..."); | |
1798 | bus_init(m, true); | |
1799 | } | |
1800 | ||
1801 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1802 | log_info("Loading D-Bus service..."); | |
1803 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); | |
1804 | } | |
1805 | ||
1806 | break; | |
1807 | } | |
1808 | ||
1809 | case SIGUSR2: { | |
60f067b4 JS |
1810 | _cleanup_free_ char *dump = NULL; |
1811 | _cleanup_fclose_ FILE *f = NULL; | |
663996b3 MS |
1812 | size_t size; |
1813 | ||
60f067b4 JS |
1814 | f = open_memstream(&dump, &size); |
1815 | if (!f) { | |
5fd56512 | 1816 | log_warning_errno(errno, "Failed to allocate memory stream: %m"); |
663996b3 MS |
1817 | break; |
1818 | } | |
1819 | ||
1820 | manager_dump_units(m, f, "\t"); | |
1821 | manager_dump_jobs(m, f, "\t"); | |
1822 | ||
5fd56512 MP |
1823 | r = fflush_and_check(f); |
1824 | if (r < 0) { | |
1825 | log_warning_errno(r, "Failed to write status stream: %m"); | |
60f067b4 JS |
1826 | break; |
1827 | } | |
663996b3 | 1828 | |
60f067b4 | 1829 | log_dump(LOG_INFO, dump); |
663996b3 MS |
1830 | break; |
1831 | } | |
1832 | ||
1833 | case SIGHUP: | |
1834 | m->exit_code = MANAGER_RELOAD; | |
1835 | break; | |
1836 | ||
1837 | default: { | |
1838 | ||
1839 | /* Starting SIGRTMIN+0 */ | |
1840 | static const char * const target_table[] = { | |
1841 | [0] = SPECIAL_DEFAULT_TARGET, | |
1842 | [1] = SPECIAL_RESCUE_TARGET, | |
1843 | [2] = SPECIAL_EMERGENCY_TARGET, | |
1844 | [3] = SPECIAL_HALT_TARGET, | |
1845 | [4] = SPECIAL_POWEROFF_TARGET, | |
1846 | [5] = SPECIAL_REBOOT_TARGET, | |
1847 | [6] = SPECIAL_KEXEC_TARGET | |
1848 | }; | |
1849 | ||
1850 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1851 | static const ManagerExitCode code_table[] = { | |
1852 | [0] = MANAGER_HALT, | |
1853 | [1] = MANAGER_POWEROFF, | |
1854 | [2] = MANAGER_REBOOT, | |
1855 | [3] = MANAGER_KEXEC | |
1856 | }; | |
1857 | ||
1858 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
1859 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { | |
1860 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; | |
1861 | manager_start_target(m, target_table[idx], | |
1862 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
1863 | break; | |
1864 | } | |
1865 | ||
1866 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && | |
1867 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1868 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1869 | break; | |
1870 | } | |
1871 | ||
1872 | switch (sfsi.ssi_signo - SIGRTMIN) { | |
1873 | ||
1874 | case 20: | |
1875 | log_debug("Enabling showing of status."); | |
60f067b4 | 1876 | manager_set_show_status(m, SHOW_STATUS_YES); |
663996b3 MS |
1877 | break; |
1878 | ||
1879 | case 21: | |
1880 | log_debug("Disabling showing of status."); | |
60f067b4 | 1881 | manager_set_show_status(m, SHOW_STATUS_NO); |
663996b3 MS |
1882 | break; |
1883 | ||
1884 | case 22: | |
1885 | log_set_max_level(LOG_DEBUG); | |
1886 | log_notice("Setting log level to debug."); | |
1887 | break; | |
1888 | ||
1889 | case 23: | |
1890 | log_set_max_level(LOG_INFO); | |
1891 | log_notice("Setting log level to info."); | |
1892 | break; | |
1893 | ||
1894 | case 24: | |
e3bff60a | 1895 | if (m->running_as == MANAGER_USER) { |
663996b3 MS |
1896 | m->exit_code = MANAGER_EXIT; |
1897 | return 0; | |
1898 | } | |
1899 | ||
1900 | /* This is a nop on init */ | |
1901 | break; | |
1902 | ||
1903 | case 26: | |
5eef597e | 1904 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ |
663996b3 MS |
1905 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
1906 | log_notice("Setting log target to journal-or-kmsg."); | |
1907 | break; | |
1908 | ||
1909 | case 27: | |
1910 | log_set_target(LOG_TARGET_CONSOLE); | |
1911 | log_notice("Setting log target to console."); | |
1912 | break; | |
1913 | ||
1914 | case 28: | |
1915 | log_set_target(LOG_TARGET_KMSG); | |
1916 | log_notice("Setting log target to kmsg."); | |
1917 | break; | |
1918 | ||
663996b3 MS |
1919 | default: |
1920 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); | |
1921 | } | |
1922 | } | |
1923 | } | |
1924 | } | |
1925 | ||
1926 | if (sigchld) | |
60f067b4 | 1927 | manager_dispatch_sigchld(m); |
663996b3 MS |
1928 | |
1929 | return 0; | |
1930 | } | |
1931 | ||
60f067b4 JS |
1932 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1933 | Manager *m = userdata; | |
1934 | Iterator i; | |
1935 | Unit *u; | |
663996b3 MS |
1936 | |
1937 | assert(m); | |
60f067b4 | 1938 | assert(m->time_change_fd == fd); |
663996b3 | 1939 | |
60f067b4 | 1940 | log_struct(LOG_INFO, |
f47781d8 MP |
1941 | LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), |
1942 | LOG_MESSAGE("Time has been changed"), | |
60f067b4 | 1943 | NULL); |
663996b3 | 1944 | |
60f067b4 JS |
1945 | /* Restart the watch */ |
1946 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
1947 | m->time_change_fd = safe_close(m->time_change_fd); | |
663996b3 | 1948 | |
60f067b4 | 1949 | manager_setup_time_change(m); |
663996b3 | 1950 | |
60f067b4 JS |
1951 | HASHMAP_FOREACH(u, m->units, i) |
1952 | if (UNIT_VTABLE(u)->time_change) | |
1953 | UNIT_VTABLE(u)->time_change(u); | |
663996b3 | 1954 | |
60f067b4 JS |
1955 | return 0; |
1956 | } | |
663996b3 | 1957 | |
60f067b4 JS |
1958 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1959 | Manager *m = userdata; | |
663996b3 | 1960 | |
60f067b4 JS |
1961 | assert(m); |
1962 | assert(m->idle_pipe[2] == fd); | |
663996b3 | 1963 | |
60f067b4 | 1964 | m->no_console_output = m->n_on_console > 0; |
663996b3 | 1965 | |
60f067b4 JS |
1966 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1967 | manager_close_idle_pipe(m); | |
663996b3 | 1968 | |
60f067b4 JS |
1969 | return 0; |
1970 | } | |
663996b3 | 1971 | |
60f067b4 JS |
1972 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1973 | Manager *m = userdata; | |
1974 | int r; | |
1975 | uint64_t next; | |
663996b3 | 1976 | |
60f067b4 JS |
1977 | assert(m); |
1978 | assert(source); | |
14228c0d | 1979 | |
60f067b4 | 1980 | manager_print_jobs_in_progress(m); |
14228c0d | 1981 | |
60f067b4 JS |
1982 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; |
1983 | r = sd_event_source_set_time(source, next); | |
1984 | if (r < 0) | |
1985 | return r; | |
663996b3 | 1986 | |
60f067b4 | 1987 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); |
663996b3 MS |
1988 | } |
1989 | ||
1990 | int manager_loop(Manager *m) { | |
1991 | int r; | |
1992 | ||
1993 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); | |
1994 | ||
1995 | assert(m); | |
60f067b4 | 1996 | m->exit_code = MANAGER_OK; |
663996b3 MS |
1997 | |
1998 | /* Release the path cache */ | |
1999 | set_free_free(m->unit_path_cache); | |
2000 | m->unit_path_cache = NULL; | |
2001 | ||
2002 | manager_check_finished(m); | |
2003 | ||
2004 | /* There might still be some zombies hanging around from | |
60f067b4 | 2005 | * before we were exec()'ed. Let's reap them. */ |
663996b3 MS |
2006 | r = manager_dispatch_sigchld(m); |
2007 | if (r < 0) | |
2008 | return r; | |
2009 | ||
60f067b4 JS |
2010 | while (m->exit_code == MANAGER_OK) { |
2011 | usec_t wait_usec; | |
663996b3 | 2012 | |
e3bff60a | 2013 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
2014 | watchdog_ping(); |
2015 | ||
2016 | if (!ratelimit_test(&rl)) { | |
2017 | /* Yay, something is going seriously wrong, pause a little */ | |
2018 | log_warning("Looping too fast. Throttling execution a little."); | |
2019 | sleep(1); | |
2020 | continue; | |
2021 | } | |
2022 | ||
2023 | if (manager_dispatch_load_queue(m) > 0) | |
2024 | continue; | |
2025 | ||
14228c0d | 2026 | if (manager_dispatch_gc_queue(m) > 0) |
663996b3 MS |
2027 | continue; |
2028 | ||
14228c0d | 2029 | if (manager_dispatch_cleanup_queue(m) > 0) |
663996b3 MS |
2030 | continue; |
2031 | ||
14228c0d | 2032 | if (manager_dispatch_cgroup_queue(m) > 0) |
663996b3 MS |
2033 | continue; |
2034 | ||
663996b3 MS |
2035 | if (manager_dispatch_dbus_queue(m) > 0) |
2036 | continue; | |
2037 | ||
663996b3 | 2038 | /* Sleep for half the watchdog time */ |
e3bff60a | 2039 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) { |
60f067b4 JS |
2040 | wait_usec = m->runtime_watchdog / 2; |
2041 | if (wait_usec <= 0) | |
2042 | wait_usec = 1; | |
663996b3 | 2043 | } else |
5eef597e | 2044 | wait_usec = USEC_INFINITY; |
663996b3 | 2045 | |
60f067b4 | 2046 | r = sd_event_run(m->event, wait_usec); |
f47781d8 MP |
2047 | if (r < 0) |
2048 | return log_error_errno(r, "Failed to run event loop: %m"); | |
663996b3 MS |
2049 | } |
2050 | ||
2051 | return m->exit_code; | |
2052 | } | |
2053 | ||
60f067b4 | 2054 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
14228c0d | 2055 | _cleanup_free_ char *n = NULL; |
663996b3 MS |
2056 | Unit *u; |
2057 | int r; | |
2058 | ||
2059 | assert(m); | |
2060 | assert(s); | |
2061 | assert(_u); | |
2062 | ||
14228c0d MB |
2063 | r = unit_name_from_dbus_path(s, &n); |
2064 | if (r < 0) | |
2065 | return r; | |
663996b3 MS |
2066 | |
2067 | r = manager_load_unit(m, n, NULL, e, &u); | |
663996b3 MS |
2068 | if (r < 0) |
2069 | return r; | |
2070 | ||
2071 | *_u = u; | |
2072 | ||
2073 | return 0; | |
2074 | } | |
2075 | ||
2076 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
60f067b4 | 2077 | const char *p; |
663996b3 | 2078 | unsigned id; |
60f067b4 | 2079 | Job *j; |
663996b3 MS |
2080 | int r; |
2081 | ||
2082 | assert(m); | |
2083 | assert(s); | |
2084 | assert(_j); | |
2085 | ||
60f067b4 JS |
2086 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
2087 | if (!p) | |
663996b3 MS |
2088 | return -EINVAL; |
2089 | ||
60f067b4 | 2090 | r = safe_atou(p, &id); |
663996b3 MS |
2091 | if (r < 0) |
2092 | return r; | |
2093 | ||
2094 | j = manager_get_job(m, id); | |
2095 | if (!j) | |
2096 | return -ENOENT; | |
2097 | ||
2098 | *_j = j; | |
2099 | ||
2100 | return 0; | |
2101 | } | |
2102 | ||
2103 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { | |
2104 | ||
2105 | #ifdef HAVE_AUDIT | |
60f067b4 | 2106 | _cleanup_free_ char *p = NULL; |
f47781d8 | 2107 | const char *msg; |
e3bff60a | 2108 | int audit_fd, r; |
663996b3 MS |
2109 | |
2110 | audit_fd = get_audit_fd(); | |
2111 | if (audit_fd < 0) | |
2112 | return; | |
2113 | ||
2114 | /* Don't generate audit events if the service was already | |
2115 | * started and we're just deserializing */ | |
2116 | if (m->n_reloading > 0) | |
2117 | return; | |
2118 | ||
e3bff60a | 2119 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2120 | return; |
2121 | ||
2122 | if (u->type != UNIT_SERVICE) | |
2123 | return; | |
2124 | ||
e3bff60a MP |
2125 | r = unit_name_to_prefix_and_instance(u->id, &p); |
2126 | if (r < 0) { | |
2127 | log_error_errno(r, "Failed to extract prefix and instance of unit name: %m"); | |
663996b3 MS |
2128 | return; |
2129 | } | |
2130 | ||
e735f4d4 | 2131 | msg = strjoina("unit=", p); |
f47781d8 MP |
2132 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { |
2133 | if (errno == EPERM) | |
663996b3 MS |
2134 | /* We aren't allowed to send audit messages? |
2135 | * Then let's not retry again. */ | |
2136 | close_audit_fd(); | |
f47781d8 MP |
2137 | else |
2138 | log_warning_errno(errno, "Failed to send audit message: %m"); | |
663996b3 | 2139 | } |
663996b3 MS |
2140 | #endif |
2141 | ||
2142 | } | |
2143 | ||
2144 | void manager_send_unit_plymouth(Manager *m, Unit *u) { | |
5eef597e | 2145 | union sockaddr_union sa = PLYMOUTH_SOCKET; |
60f067b4 | 2146 | |
663996b3 | 2147 | int n = 0; |
60f067b4 JS |
2148 | _cleanup_free_ char *message = NULL; |
2149 | _cleanup_close_ int fd = -1; | |
663996b3 MS |
2150 | |
2151 | /* Don't generate plymouth events if the service was already | |
2152 | * started and we're just deserializing */ | |
2153 | if (m->n_reloading > 0) | |
2154 | return; | |
2155 | ||
e3bff60a | 2156 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2157 | return; |
2158 | ||
60f067b4 JS |
2159 | if (detect_container(NULL) > 0) |
2160 | return; | |
2161 | ||
663996b3 MS |
2162 | if (u->type != UNIT_SERVICE && |
2163 | u->type != UNIT_MOUNT && | |
2164 | u->type != UNIT_SWAP) | |
2165 | return; | |
2166 | ||
2167 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
2168 | * message then wait for plymouth */ | |
2169 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
2170 | if (fd < 0) { | |
f47781d8 | 2171 | log_error_errno(errno, "socket() failed: %m"); |
663996b3 MS |
2172 | return; |
2173 | } | |
2174 | ||
663996b3 MS |
2175 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
2176 | ||
60f067b4 | 2177 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
f47781d8 | 2178 | log_error_errno(errno, "connect() failed: %m"); |
60f067b4 | 2179 | return; |
663996b3 MS |
2180 | } |
2181 | ||
2182 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { | |
2183 | log_oom(); | |
60f067b4 | 2184 | return; |
663996b3 MS |
2185 | } |
2186 | ||
2187 | errno = 0; | |
60f067b4 JS |
2188 | if (write(fd, message, n + 1) != n + 1) |
2189 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
f47781d8 | 2190 | log_error_errno(errno, "Failed to write Plymouth message: %m"); |
663996b3 MS |
2191 | } |
2192 | ||
663996b3 | 2193 | int manager_open_serialization(Manager *m, FILE **_f) { |
60f067b4 JS |
2194 | const char *path; |
2195 | int fd = -1; | |
663996b3 MS |
2196 | FILE *f; |
2197 | ||
2198 | assert(_f); | |
2199 | ||
e3bff60a | 2200 | path = m->running_as == MANAGER_SYSTEM ? "/run/systemd" : "/tmp"; |
60f067b4 JS |
2201 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); |
2202 | if (fd < 0) | |
663996b3 | 2203 | return -errno; |
663996b3 MS |
2204 | |
2205 | log_debug("Serializing state to %s", path); | |
663996b3 MS |
2206 | |
2207 | f = fdopen(fd, "w+"); | |
60f067b4 JS |
2208 | if (!f) { |
2209 | safe_close(fd); | |
663996b3 | 2210 | return -errno; |
60f067b4 | 2211 | } |
663996b3 MS |
2212 | |
2213 | *_f = f; | |
2214 | ||
2215 | return 0; | |
2216 | } | |
2217 | ||
2218 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { | |
2219 | Iterator i; | |
2220 | Unit *u; | |
2221 | const char *t; | |
2222 | char **e; | |
2223 | int r; | |
2224 | ||
2225 | assert(m); | |
2226 | assert(f); | |
2227 | assert(fds); | |
2228 | ||
2229 | m->n_reloading ++; | |
2230 | ||
e735f4d4 | 2231 | fprintf(f, "current-job-id=%"PRIu32"\n", m->current_job_id); |
663996b3 MS |
2232 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); |
2233 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); | |
2234 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
2235 | ||
2236 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); | |
663996b3 | 2237 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
60f067b4 | 2238 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
663996b3 MS |
2239 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
2240 | ||
2241 | if (!in_initrd()) { | |
2242 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); | |
2243 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); | |
60f067b4 JS |
2244 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2245 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2246 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2247 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2248 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2249 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
663996b3 MS |
2250 | } |
2251 | ||
2252 | if (!switching_root) { | |
2253 | STRV_FOREACH(e, m->environment) { | |
2254 | _cleanup_free_ char *ce; | |
2255 | ||
2256 | ce = cescape(*e); | |
60f067b4 JS |
2257 | if (!ce) |
2258 | return -ENOMEM; | |
2259 | ||
2260 | fprintf(f, "env=%s\n", *e); | |
663996b3 MS |
2261 | } |
2262 | } | |
2263 | ||
60f067b4 JS |
2264 | if (m->notify_fd >= 0) { |
2265 | int copy; | |
2266 | ||
2267 | copy = fdset_put_dup(fds, m->notify_fd); | |
2268 | if (copy < 0) | |
2269 | return copy; | |
2270 | ||
2271 | fprintf(f, "notify-fd=%i\n", copy); | |
2272 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2273 | } | |
2274 | ||
2275 | if (m->kdbus_fd >= 0) { | |
2276 | int copy; | |
2277 | ||
2278 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2279 | if (copy < 0) | |
2280 | return copy; | |
2281 | ||
2282 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2283 | } | |
2284 | ||
2285 | bus_track_serialize(m->subscribed, f); | |
14228c0d | 2286 | |
663996b3 MS |
2287 | fputc('\n', f); |
2288 | ||
2289 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { | |
2290 | if (u->id != t) | |
2291 | continue; | |
2292 | ||
663996b3 MS |
2293 | /* Start marker */ |
2294 | fputs(u->id, f); | |
2295 | fputc('\n', f); | |
2296 | ||
14228c0d MB |
2297 | r = unit_serialize(u, f, fds, !switching_root); |
2298 | if (r < 0) { | |
663996b3 MS |
2299 | m->n_reloading --; |
2300 | return r; | |
2301 | } | |
2302 | } | |
2303 | ||
2304 | assert(m->n_reloading > 0); | |
2305 | m->n_reloading --; | |
2306 | ||
2307 | if (ferror(f)) | |
2308 | return -EIO; | |
2309 | ||
2310 | r = bus_fdset_add_all(m, fds); | |
2311 | if (r < 0) | |
2312 | return r; | |
2313 | ||
2314 | return 0; | |
2315 | } | |
2316 | ||
2317 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2318 | int r = 0; | |
2319 | ||
2320 | assert(m); | |
2321 | assert(f); | |
2322 | ||
2323 | log_debug("Deserializing state..."); | |
2324 | ||
2325 | m->n_reloading ++; | |
2326 | ||
2327 | for (;;) { | |
2328 | char line[LINE_MAX], *l; | |
2329 | ||
2330 | if (!fgets(line, sizeof(line), f)) { | |
2331 | if (feof(f)) | |
2332 | r = 0; | |
2333 | else | |
2334 | r = -errno; | |
2335 | ||
2336 | goto finish; | |
2337 | } | |
2338 | ||
2339 | char_array_0(line); | |
2340 | l = strstrip(line); | |
2341 | ||
2342 | if (l[0] == 0) | |
2343 | break; | |
2344 | ||
2345 | if (startswith(l, "current-job-id=")) { | |
2346 | uint32_t id; | |
2347 | ||
2348 | if (safe_atou32(l+15, &id) < 0) | |
f47781d8 | 2349 | log_debug("Failed to parse current job id value %s", l+15); |
663996b3 MS |
2350 | else |
2351 | m->current_job_id = MAX(m->current_job_id, id); | |
60f067b4 | 2352 | |
663996b3 MS |
2353 | } else if (startswith(l, "n-installed-jobs=")) { |
2354 | uint32_t n; | |
2355 | ||
2356 | if (safe_atou32(l+17, &n) < 0) | |
f47781d8 | 2357 | log_debug("Failed to parse installed jobs counter %s", l+17); |
663996b3 MS |
2358 | else |
2359 | m->n_installed_jobs += n; | |
60f067b4 | 2360 | |
663996b3 MS |
2361 | } else if (startswith(l, "n-failed-jobs=")) { |
2362 | uint32_t n; | |
2363 | ||
2364 | if (safe_atou32(l+14, &n) < 0) | |
f47781d8 | 2365 | log_debug("Failed to parse failed jobs counter %s", l+14); |
663996b3 MS |
2366 | else |
2367 | m->n_failed_jobs += n; | |
60f067b4 | 2368 | |
663996b3 MS |
2369 | } else if (startswith(l, "taint-usr=")) { |
2370 | int b; | |
2371 | ||
60f067b4 JS |
2372 | b = parse_boolean(l+10); |
2373 | if (b < 0) | |
f47781d8 | 2374 | log_debug("Failed to parse taint /usr flag %s", l+10); |
663996b3 MS |
2375 | else |
2376 | m->taint_usr = m->taint_usr || b; | |
60f067b4 | 2377 | |
663996b3 MS |
2378 | } else if (startswith(l, "firmware-timestamp=")) |
2379 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2380 | else if (startswith(l, "loader-timestamp=")) | |
2381 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2382 | else if (startswith(l, "kernel-timestamp=")) | |
2383 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2384 | else if (startswith(l, "initrd-timestamp=")) | |
2385 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); | |
2386 | else if (startswith(l, "userspace-timestamp=")) | |
2387 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
2388 | else if (startswith(l, "finish-timestamp=")) | |
2389 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); | |
60f067b4 JS |
2390 | else if (startswith(l, "security-start-timestamp=")) |
2391 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2392 | else if (startswith(l, "security-finish-timestamp=")) | |
2393 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2394 | else if (startswith(l, "generators-start-timestamp=")) | |
2395 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2396 | else if (startswith(l, "generators-finish-timestamp=")) | |
2397 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2398 | else if (startswith(l, "units-load-start-timestamp=")) | |
2399 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2400 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2401 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
663996b3 MS |
2402 | else if (startswith(l, "env=")) { |
2403 | _cleanup_free_ char *uce = NULL; | |
2404 | char **e; | |
2405 | ||
e3bff60a MP |
2406 | r = cunescape(l + 4, UNESCAPE_RELAX, &uce); |
2407 | if (r < 0) | |
663996b3 | 2408 | goto finish; |
663996b3 MS |
2409 | |
2410 | e = strv_env_set(m->environment, uce); | |
2411 | if (!e) { | |
2412 | r = -ENOMEM; | |
2413 | goto finish; | |
2414 | } | |
2415 | ||
2416 | strv_free(m->environment); | |
2417 | m->environment = e; | |
60f067b4 JS |
2418 | |
2419 | } else if (startswith(l, "notify-fd=")) { | |
2420 | int fd; | |
2421 | ||
2422 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f47781d8 | 2423 | log_debug("Failed to parse notify fd: %s", l + 10); |
60f067b4 JS |
2424 | else { |
2425 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
2426 | safe_close(m->notify_fd); | |
2427 | m->notify_fd = fdset_remove(fds, fd); | |
2428 | } | |
2429 | ||
2430 | } else if (startswith(l, "notify-socket=")) { | |
2431 | char *n; | |
2432 | ||
2433 | n = strdup(l+14); | |
2434 | if (!n) { | |
2435 | r = -ENOMEM; | |
2436 | goto finish; | |
2437 | } | |
2438 | ||
2439 | free(m->notify_socket); | |
2440 | m->notify_socket = n; | |
2441 | ||
2442 | } else if (startswith(l, "kdbus-fd=")) { | |
2443 | int fd; | |
2444 | ||
2445 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f47781d8 | 2446 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
60f067b4 JS |
2447 | else { |
2448 | safe_close(m->kdbus_fd); | |
2449 | m->kdbus_fd = fdset_remove(fds, fd); | |
2450 | } | |
2451 | ||
f47781d8 MP |
2452 | } else { |
2453 | int k; | |
2454 | ||
2455 | k = bus_track_deserialize_item(&m->deserialized_subscribed, l); | |
2456 | if (k < 0) | |
2457 | log_debug_errno(k, "Failed to deserialize bus tracker object: %m"); | |
2458 | else if (k == 0) | |
2459 | log_debug("Unknown serialization item '%s'", l); | |
2460 | } | |
663996b3 MS |
2461 | } |
2462 | ||
2463 | for (;;) { | |
2464 | Unit *u; | |
2465 | char name[UNIT_NAME_MAX+2]; | |
2466 | ||
2467 | /* Start marker */ | |
2468 | if (!fgets(name, sizeof(name), f)) { | |
2469 | if (feof(f)) | |
2470 | r = 0; | |
2471 | else | |
2472 | r = -errno; | |
2473 | ||
2474 | goto finish; | |
2475 | } | |
2476 | ||
2477 | char_array_0(name); | |
2478 | ||
2479 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); | |
2480 | if (r < 0) | |
2481 | goto finish; | |
2482 | ||
2483 | r = unit_deserialize(u, f, fds); | |
2484 | if (r < 0) | |
2485 | goto finish; | |
2486 | } | |
2487 | ||
2488 | finish: | |
60f067b4 | 2489 | if (ferror(f)) |
663996b3 | 2490 | r = -EIO; |
663996b3 MS |
2491 | |
2492 | assert(m->n_reloading > 0); | |
2493 | m->n_reloading --; | |
2494 | ||
2495 | return r; | |
2496 | } | |
2497 | ||
663996b3 MS |
2498 | int manager_reload(Manager *m) { |
2499 | int r, q; | |
60f067b4 JS |
2500 | _cleanup_fclose_ FILE *f = NULL; |
2501 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
663996b3 MS |
2502 | |
2503 | assert(m); | |
2504 | ||
2505 | r = manager_open_serialization(m, &f); | |
2506 | if (r < 0) | |
2507 | return r; | |
2508 | ||
2509 | m->n_reloading ++; | |
60f067b4 | 2510 | bus_manager_send_reloading(m, true); |
663996b3 MS |
2511 | |
2512 | fds = fdset_new(); | |
2513 | if (!fds) { | |
2514 | m->n_reloading --; | |
60f067b4 | 2515 | return -ENOMEM; |
663996b3 MS |
2516 | } |
2517 | ||
2518 | r = manager_serialize(m, f, fds, false); | |
2519 | if (r < 0) { | |
2520 | m->n_reloading --; | |
60f067b4 | 2521 | return r; |
663996b3 MS |
2522 | } |
2523 | ||
2524 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
2525 | m->n_reloading --; | |
60f067b4 | 2526 | return -errno; |
663996b3 MS |
2527 | } |
2528 | ||
2529 | /* From here on there is no way back. */ | |
2530 | manager_clear_jobs_and_units(m); | |
2531 | manager_undo_generators(m); | |
2532 | lookup_paths_free(&m->lookup_paths); | |
2533 | ||
2534 | /* Find new unit paths */ | |
e735f4d4 MP |
2535 | q = manager_run_generators(m); |
2536 | if (q < 0 && r >= 0) | |
2537 | r = q; | |
663996b3 MS |
2538 | |
2539 | q = lookup_paths_init( | |
2540 | &m->lookup_paths, m->running_as, true, | |
60f067b4 | 2541 | NULL, |
663996b3 MS |
2542 | m->generator_unit_path, |
2543 | m->generator_unit_path_early, | |
2544 | m->generator_unit_path_late); | |
e735f4d4 | 2545 | if (q < 0 && r >= 0) |
663996b3 MS |
2546 | r = q; |
2547 | ||
2548 | manager_build_unit_path_cache(m); | |
2549 | ||
2550 | /* First, enumerate what we can from all config files */ | |
2551 | q = manager_enumerate(m); | |
e735f4d4 | 2552 | if (q < 0 && r >= 0) |
663996b3 MS |
2553 | r = q; |
2554 | ||
2555 | /* Second, deserialize our stored data */ | |
2556 | q = manager_deserialize(m, f, fds); | |
e735f4d4 | 2557 | if (q < 0 && r >= 0) |
663996b3 MS |
2558 | r = q; |
2559 | ||
2560 | fclose(f); | |
2561 | f = NULL; | |
2562 | ||
60f067b4 JS |
2563 | /* Re-register notify_fd as event source */ |
2564 | q = manager_setup_notify(m); | |
e735f4d4 | 2565 | if (q < 0 && r >= 0) |
60f067b4 JS |
2566 | r = q; |
2567 | ||
663996b3 | 2568 | /* Third, fire things up! */ |
e3bff60a | 2569 | manager_coldplug(m); |
663996b3 MS |
2570 | |
2571 | assert(m->n_reloading > 0); | |
2572 | m->n_reloading--; | |
2573 | ||
14228c0d MB |
2574 | m->send_reloading_done = true; |
2575 | ||
663996b3 MS |
2576 | return r; |
2577 | } | |
2578 | ||
663996b3 MS |
2579 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2580 | assert(m); | |
2581 | ||
2582 | return m->n_reloading != 0; | |
2583 | } | |
2584 | ||
2585 | void manager_reset_failed(Manager *m) { | |
2586 | Unit *u; | |
2587 | Iterator i; | |
2588 | ||
2589 | assert(m); | |
2590 | ||
2591 | HASHMAP_FOREACH(u, m->units, i) | |
2592 | unit_reset_failed(u); | |
2593 | } | |
2594 | ||
2595 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { | |
2596 | Unit *u; | |
2597 | ||
2598 | assert(m); | |
2599 | assert(name); | |
2600 | ||
2601 | /* Returns true if the unit is inactive or going down */ | |
2602 | u = manager_get_unit(m, name); | |
2603 | if (!u) | |
2604 | return true; | |
2605 | ||
2606 | return unit_inactive_or_pending(u); | |
2607 | } | |
2608 | ||
f47781d8 | 2609 | static void manager_notify_finished(Manager *m) { |
663996b3 MS |
2610 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
2611 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; | |
60f067b4 | 2612 | |
f47781d8 | 2613 | if (m->test_run) |
663996b3 MS |
2614 | return; |
2615 | ||
e3bff60a | 2616 | if (m->running_as == MANAGER_SYSTEM && detect_container(NULL) <= 0) { |
663996b3 MS |
2617 | |
2618 | /* Note that m->kernel_usec.monotonic is always at 0, | |
2619 | * and m->firmware_usec.monotonic and | |
2620 | * m->loader_usec.monotonic should be considered | |
2621 | * negative values. */ | |
2622 | ||
2623 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; | |
2624 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2625 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2626 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; | |
2627 | ||
2628 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { | |
2629 | ||
2630 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2631 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
2632 | ||
5eef597e | 2633 | log_struct(LOG_INFO, |
f47781d8 | 2634 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e MP |
2635 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2636 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2637 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
f47781d8 MP |
2638 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2639 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2640 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2641 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2642 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
5eef597e | 2643 | NULL); |
663996b3 MS |
2644 | } else { |
2645 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2646 | initrd_usec = 0; | |
2647 | ||
663996b3 | 2648 | log_struct(LOG_INFO, |
f47781d8 | 2649 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e | 2650 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
60f067b4 | 2651 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
f47781d8 MP |
2652 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.", |
2653 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2654 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2655 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
663996b3 | 2656 | NULL); |
5eef597e MP |
2657 | } |
2658 | } else { | |
2659 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; | |
2660 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2661 | ||
2662 | log_struct(LOG_INFO, | |
f47781d8 | 2663 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e | 2664 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
f47781d8 MP |
2665 | LOG_MESSAGE("Startup finished in %s.", |
2666 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
5eef597e | 2667 | NULL); |
663996b3 MS |
2668 | } |
2669 | ||
60f067b4 | 2670 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
663996b3 MS |
2671 | |
2672 | sd_notifyf(false, | |
5eef597e MP |
2673 | "READY=1\n" |
2674 | "STATUS=Startup finished in %s.", | |
663996b3 MS |
2675 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
2676 | } | |
2677 | ||
f47781d8 MP |
2678 | void manager_check_finished(Manager *m) { |
2679 | Unit *u = NULL; | |
2680 | Iterator i; | |
2681 | ||
2682 | assert(m); | |
2683 | ||
e3bff60a MP |
2684 | if (m->n_reloading > 0) |
2685 | return; | |
2686 | ||
2687 | /* Verify that we are actually running currently. Initially | |
2688 | * the exit code is set to invalid, and during operation it is | |
2689 | * then set to MANAGER_OK */ | |
2690 | if (m->exit_code != MANAGER_OK) | |
2691 | return; | |
2692 | ||
f47781d8 MP |
2693 | if (hashmap_size(m->jobs) > 0) { |
2694 | ||
2695 | if (m->jobs_in_progress_event_source) | |
e3bff60a MP |
2696 | /* Ignore any failure, this is only for feedback */ |
2697 | (void) sd_event_source_set_time(m->jobs_in_progress_event_source, | |
2698 | now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
f47781d8 MP |
2699 | |
2700 | return; | |
2701 | } | |
2702 | ||
2703 | manager_flip_auto_status(m, false); | |
2704 | ||
2705 | /* Notify Type=idle units that we are done now */ | |
2706 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); | |
2707 | manager_close_idle_pipe(m); | |
2708 | ||
2709 | /* Turn off confirm spawn now */ | |
2710 | m->confirm_spawn = false; | |
2711 | ||
2712 | /* No need to update ask password status when we're going non-interactive */ | |
2713 | manager_close_ask_password(m); | |
2714 | ||
2715 | /* This is no longer the first boot */ | |
2716 | manager_set_first_boot(m, false); | |
2717 | ||
2718 | if (dual_timestamp_is_set(&m->finish_timestamp)) | |
2719 | return; | |
2720 | ||
2721 | dual_timestamp_get(&m->finish_timestamp); | |
2722 | ||
2723 | manager_notify_finished(m); | |
2724 | ||
2725 | SET_FOREACH(u, m->startup_units, i) | |
2726 | if (u->cgroup_path) | |
d9dfd233 | 2727 | cgroup_context_apply(unit_get_cgroup_context(u), unit_get_own_mask(u), u->cgroup_path, manager_state(m)); |
f47781d8 MP |
2728 | } |
2729 | ||
663996b3 MS |
2730 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2731 | char *p; | |
2732 | int r; | |
2733 | ||
2734 | assert(m); | |
2735 | assert(generator); | |
2736 | assert(name); | |
2737 | ||
2738 | if (*generator) | |
2739 | return 0; | |
2740 | ||
e3bff60a | 2741 | if (m->running_as == MANAGER_SYSTEM && getpid() == 1) { |
60f067b4 | 2742 | /* systemd --system, not running --test */ |
663996b3 MS |
2743 | |
2744 | p = strappend("/run/systemd/", name); | |
2745 | if (!p) | |
2746 | return log_oom(); | |
2747 | ||
60f067b4 JS |
2748 | r = mkdir_p_label(p, 0755); |
2749 | if (r < 0) { | |
f47781d8 | 2750 | log_error_errno(r, "Failed to create generator directory %s: %m", p); |
60f067b4 JS |
2751 | free(p); |
2752 | return r; | |
2753 | } | |
e3bff60a | 2754 | } else if (m->running_as == MANAGER_USER) { |
60f067b4 JS |
2755 | const char *s = NULL; |
2756 | ||
2757 | s = getenv("XDG_RUNTIME_DIR"); | |
2758 | if (!s) | |
2759 | return -EINVAL; | |
2760 | p = strjoin(s, "/systemd/", name, NULL); | |
2761 | if (!p) | |
2762 | return log_oom(); | |
2763 | ||
663996b3 MS |
2764 | r = mkdir_p_label(p, 0755); |
2765 | if (r < 0) { | |
f47781d8 | 2766 | log_error_errno(r, "Failed to create generator directory %s: %m", p); |
663996b3 MS |
2767 | free(p); |
2768 | return r; | |
2769 | } | |
2770 | } else { | |
60f067b4 JS |
2771 | /* systemd --system --test */ |
2772 | ||
663996b3 MS |
2773 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
2774 | if (!p) | |
2775 | return log_oom(); | |
2776 | ||
2777 | if (!mkdtemp(p)) { | |
f47781d8 | 2778 | log_error_errno(errno, "Failed to create generator directory %s: %m", |
663996b3 MS |
2779 | p); |
2780 | free(p); | |
2781 | return -errno; | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | *generator = p; | |
2786 | return 0; | |
2787 | } | |
2788 | ||
2789 | static void trim_generator_dir(Manager *m, char **generator) { | |
2790 | assert(m); | |
2791 | assert(generator); | |
2792 | ||
2793 | if (!*generator) | |
2794 | return; | |
2795 | ||
2796 | if (rmdir(*generator) >= 0) { | |
2797 | free(*generator); | |
2798 | *generator = NULL; | |
2799 | } | |
2800 | ||
2801 | return; | |
2802 | } | |
2803 | ||
e735f4d4 | 2804 | static int manager_run_generators(Manager *m) { |
e3bff60a | 2805 | _cleanup_strv_free_ char **paths = NULL; |
663996b3 | 2806 | const char *argv[5]; |
e735f4d4 | 2807 | char **path; |
663996b3 MS |
2808 | int r; |
2809 | ||
2810 | assert(m); | |
2811 | ||
5eef597e | 2812 | if (m->test_run) |
e735f4d4 | 2813 | return 0; |
663996b3 | 2814 | |
e735f4d4 MP |
2815 | paths = generator_paths(m->running_as); |
2816 | if (!paths) | |
2817 | return log_oom(); | |
2818 | ||
2819 | /* Optimize by skipping the whole process by not creating output directories | |
2820 | * if no generators are found. */ | |
2821 | STRV_FOREACH(path, paths) { | |
2822 | r = access(*path, F_OK); | |
2823 | if (r == 0) | |
2824 | goto found; | |
2825 | if (errno != ENOENT) | |
2826 | log_warning_errno(errno, "Failed to open generator directory %s: %m", *path); | |
663996b3 | 2827 | } |
e735f4d4 | 2828 | return 0; |
663996b3 | 2829 | |
e735f4d4 | 2830 | found: |
663996b3 MS |
2831 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2832 | if (r < 0) | |
2833 | goto finish; | |
2834 | ||
2835 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); | |
2836 | if (r < 0) | |
2837 | goto finish; | |
2838 | ||
2839 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); | |
2840 | if (r < 0) | |
2841 | goto finish; | |
2842 | ||
2843 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ | |
2844 | argv[1] = m->generator_unit_path; | |
2845 | argv[2] = m->generator_unit_path_early; | |
2846 | argv[3] = m->generator_unit_path_late; | |
2847 | argv[4] = NULL; | |
2848 | ||
60f067b4 | 2849 | RUN_WITH_UMASK(0022) |
e735f4d4 | 2850 | execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, (char**) argv); |
663996b3 | 2851 | |
60f067b4 | 2852 | finish: |
663996b3 MS |
2853 | trim_generator_dir(m, &m->generator_unit_path); |
2854 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2855 | trim_generator_dir(m, &m->generator_unit_path_late); | |
e735f4d4 | 2856 | return r; |
663996b3 MS |
2857 | } |
2858 | ||
2859 | static void remove_generator_dir(Manager *m, char **generator) { | |
2860 | assert(m); | |
2861 | assert(generator); | |
2862 | ||
2863 | if (!*generator) | |
2864 | return; | |
2865 | ||
2866 | strv_remove(m->lookup_paths.unit_path, *generator); | |
e3bff60a | 2867 | (void) rm_rf(*generator, REMOVE_ROOT); |
663996b3 MS |
2868 | |
2869 | free(*generator); | |
2870 | *generator = NULL; | |
2871 | } | |
2872 | ||
e735f4d4 | 2873 | static void manager_undo_generators(Manager *m) { |
663996b3 MS |
2874 | assert(m); |
2875 | ||
2876 | remove_generator_dir(m, &m->generator_unit_path); | |
2877 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2878 | remove_generator_dir(m, &m->generator_unit_path_late); | |
2879 | } | |
2880 | ||
60f067b4 JS |
2881 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2882 | char **a = NULL, **b = NULL, **l; | |
663996b3 MS |
2883 | assert(m); |
2884 | ||
60f067b4 | 2885 | l = m->environment; |
663996b3 | 2886 | |
60f067b4 JS |
2887 | if (!strv_isempty(minus)) { |
2888 | a = strv_env_delete(l, 1, minus); | |
2889 | if (!a) | |
2890 | return -ENOMEM; | |
2891 | ||
2892 | l = a; | |
2893 | } | |
2894 | ||
2895 | if (!strv_isempty(plus)) { | |
2896 | b = strv_env_merge(2, l, plus); | |
5eef597e MP |
2897 | if (!b) { |
2898 | strv_free(a); | |
60f067b4 | 2899 | return -ENOMEM; |
5eef597e | 2900 | } |
60f067b4 JS |
2901 | |
2902 | l = b; | |
2903 | } | |
2904 | ||
2905 | if (m->environment != l) | |
2906 | strv_free(m->environment); | |
2907 | if (a != l) | |
2908 | strv_free(a); | |
2909 | if (b != l) | |
2910 | strv_free(b); | |
2911 | ||
2912 | m->environment = l; | |
2913 | manager_clean_environment(m); | |
2914 | strv_sort(m->environment); | |
663996b3 MS |
2915 | |
2916 | return 0; | |
2917 | } | |
2918 | ||
2919 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { | |
2920 | int i; | |
2921 | ||
2922 | assert(m); | |
2923 | ||
60f067b4 | 2924 | for (i = 0; i < _RLIMIT_MAX; i++) { |
663996b3 MS |
2925 | if (!default_rlimit[i]) |
2926 | continue; | |
2927 | ||
2928 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); | |
2929 | if (!m->rlimit[i]) | |
2930 | return -ENOMEM; | |
2931 | } | |
2932 | ||
2933 | return 0; | |
2934 | } | |
2935 | ||
2936 | void manager_recheck_journal(Manager *m) { | |
2937 | Unit *u; | |
2938 | ||
2939 | assert(m); | |
2940 | ||
e3bff60a | 2941 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2942 | return; |
2943 | ||
2944 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); | |
2945 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
2946 | log_close_journal(); | |
2947 | return; | |
2948 | } | |
2949 | ||
2950 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); | |
2951 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
2952 | log_close_journal(); | |
2953 | return; | |
2954 | } | |
2955 | ||
2956 | /* Hmm, OK, so the socket is fully up and the service is up | |
2957 | * too, then let's make use of the thing. */ | |
2958 | log_open(); | |
2959 | } | |
2960 | ||
60f067b4 | 2961 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
663996b3 | 2962 | assert(m); |
60f067b4 | 2963 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
663996b3 | 2964 | |
e3bff60a | 2965 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2966 | return; |
2967 | ||
60f067b4 | 2968 | m->show_status = mode; |
663996b3 | 2969 | |
60f067b4 | 2970 | if (mode > 0) |
663996b3 MS |
2971 | touch("/run/systemd/show-status"); |
2972 | else | |
2973 | unlink("/run/systemd/show-status"); | |
2974 | } | |
2975 | ||
5eef597e | 2976 | static bool manager_get_show_status(Manager *m, StatusType type) { |
663996b3 MS |
2977 | assert(m); |
2978 | ||
e3bff60a | 2979 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2980 | return false; |
2981 | ||
14228c0d MB |
2982 | if (m->no_console_output) |
2983 | return false; | |
2984 | ||
5eef597e MP |
2985 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
2986 | return false; | |
2987 | ||
2988 | /* If we cannot find out the status properly, just proceed. */ | |
2989 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) | |
60f067b4 JS |
2990 | return false; |
2991 | ||
2992 | if (m->show_status > 0) | |
663996b3 MS |
2993 | return true; |
2994 | ||
e3bff60a | 2995 | return false; |
663996b3 MS |
2996 | } |
2997 | ||
5eef597e MP |
2998 | void manager_set_first_boot(Manager *m, bool b) { |
2999 | assert(m); | |
3000 | ||
e3bff60a | 3001 | if (m->running_as != MANAGER_SYSTEM) |
5eef597e MP |
3002 | return; |
3003 | ||
d9dfd233 MP |
3004 | if (m->first_boot != (int) b) { |
3005 | if (b) | |
3006 | (void) touch("/run/systemd/first-boot"); | |
3007 | else | |
3008 | (void) unlink("/run/systemd/first-boot"); | |
3009 | } | |
5eef597e | 3010 | |
d9dfd233 | 3011 | m->first_boot = b; |
5eef597e MP |
3012 | } |
3013 | ||
3014 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { | |
663996b3 MS |
3015 | va_list ap; |
3016 | ||
f47781d8 MP |
3017 | /* If m is NULL, assume we're after shutdown and let the messages through. */ |
3018 | ||
3019 | if (m && !manager_get_show_status(m, type)) | |
663996b3 MS |
3020 | return; |
3021 | ||
3022 | /* XXX We should totally drop the check for ephemeral here | |
3023 | * and thus effectively make 'Type=idle' pointless. */ | |
f47781d8 | 3024 | if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0) |
663996b3 MS |
3025 | return; |
3026 | ||
663996b3 | 3027 | va_start(ap, format); |
5eef597e | 3028 | status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap); |
663996b3 MS |
3029 | va_end(ap); |
3030 | } | |
3031 | ||
14228c0d MB |
3032 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
3033 | _cleanup_free_ char *p = NULL; | |
3034 | Unit *found; | |
e3bff60a | 3035 | int r; |
14228c0d MB |
3036 | |
3037 | assert(m); | |
3038 | assert(path); | |
3039 | assert(suffix); | |
3040 | assert(_found); | |
3041 | ||
e3bff60a MP |
3042 | r = unit_name_from_path(path, suffix, &p); |
3043 | if (r < 0) | |
3044 | return r; | |
14228c0d MB |
3045 | |
3046 | found = manager_get_unit(m, p); | |
3047 | if (!found) { | |
3048 | *_found = NULL; | |
3049 | return 0; | |
3050 | } | |
3051 | ||
3052 | *_found = found; | |
3053 | return 1; | |
3054 | } | |
3055 | ||
3056 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
3057 | char p[strlen(path)+1]; | |
3058 | ||
3059 | assert(m); | |
3060 | assert(path); | |
3061 | ||
3062 | strcpy(p, path); | |
3063 | path_kill_slashes(p); | |
3064 | ||
3065 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
3066 | } | |
3067 | ||
60f067b4 JS |
3068 | const char *manager_get_runtime_prefix(Manager *m) { |
3069 | assert(m); | |
3070 | ||
e3bff60a | 3071 | return m->running_as == MANAGER_SYSTEM ? |
60f067b4 JS |
3072 | "/run" : |
3073 | getenv("XDG_RUNTIME_DIR"); | |
3074 | } | |
3075 | ||
e3bff60a MP |
3076 | void manager_update_failed_units(Manager *m, Unit *u, bool failed) { |
3077 | unsigned size; | |
3078 | ||
3079 | assert(m); | |
3080 | assert(u->manager == m); | |
3081 | ||
3082 | size = set_size(m->failed_units); | |
3083 | ||
3084 | if (failed) { | |
3085 | if (set_put(m->failed_units, u) < 0) | |
3086 | log_oom(); | |
3087 | } else | |
3088 | set_remove(m->failed_units, u); | |
3089 | ||
3090 | if (set_size(m->failed_units) != size) | |
3091 | bus_manager_send_change_signal(m); | |
3092 | } | |
3093 | ||
60f067b4 JS |
3094 | ManagerState manager_state(Manager *m) { |
3095 | Unit *u; | |
3096 | ||
3097 | assert(m); | |
3098 | ||
3099 | /* Did we ever finish booting? If not then we are still starting up */ | |
5eef597e MP |
3100 | if (!dual_timestamp_is_set(&m->finish_timestamp)) { |
3101 | ||
3102 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3103 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3104 | return MANAGER_INITIALIZING; | |
3105 | ||
60f067b4 | 3106 | return MANAGER_STARTING; |
5eef597e | 3107 | } |
663996b3 | 3108 | |
60f067b4 JS |
3109 | /* Is the special shutdown target queued? If so, we are in shutdown state */ |
3110 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
3111 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
3112 | return MANAGER_STOPPING; | |
3113 | ||
3114 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
3115 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
3116 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3117 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3118 | return MANAGER_MAINTENANCE; | |
3119 | ||
3120 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
3121 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3122 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3123 | return MANAGER_MAINTENANCE; | |
3124 | ||
3125 | /* Are there any failed units? If so, we are in degraded mode */ | |
3126 | if (set_size(m->failed_units) > 0) | |
3127 | return MANAGER_DEGRADED; | |
3128 | ||
3129 | return MANAGER_RUNNING; | |
663996b3 | 3130 | } |
60f067b4 JS |
3131 | |
3132 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
5eef597e | 3133 | [MANAGER_INITIALIZING] = "initializing", |
60f067b4 JS |
3134 | [MANAGER_STARTING] = "starting", |
3135 | [MANAGER_RUNNING] = "running", | |
3136 | [MANAGER_DEGRADED] = "degraded", | |
3137 | [MANAGER_MAINTENANCE] = "maintenance", | |
3138 | [MANAGER_STOPPING] = "stopping", | |
3139 | }; | |
3140 | ||
3141 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |