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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 | ||
6300502b | 22 | #include <dirent.h> |
663996b3 | 23 | #include <errno.h> |
6300502b MP |
24 | #include <fcntl.h> |
25 | #include <linux/kd.h> | |
663996b3 | 26 | #include <signal.h> |
6300502b | 27 | #include <string.h> |
5eef597e | 28 | #include <sys/epoll.h> |
6300502b | 29 | #include <sys/inotify.h> |
663996b3 | 30 | #include <sys/ioctl.h> |
6300502b | 31 | #include <sys/reboot.h> |
663996b3 | 32 | #include <sys/timerfd.h> |
6300502b MP |
33 | #include <sys/wait.h> |
34 | #include <unistd.h> | |
663996b3 MS |
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 | |
db2df898 | 43 | #include "alloc-util.h" |
6300502b MP |
44 | #include "audit-fd.h" |
45 | #include "boot-timestamps.h" | |
46 | #include "bus-common-errors.h" | |
47 | #include "bus-error.h" | |
48 | #include "bus-kernel.h" | |
49 | #include "bus-util.h" | |
50 | #include "dbus-job.h" | |
51 | #include "dbus-manager.h" | |
52 | #include "dbus-unit.h" | |
53 | #include "dbus.h" | |
54 | #include "env-util.h" | |
db2df898 | 55 | #include "escape.h" |
6300502b | 56 | #include "exit-status.h" |
db2df898 MP |
57 | #include "fd-util.h" |
58 | #include "fileio.h" | |
59 | #include "fs-util.h" | |
663996b3 | 60 | #include "hashmap.h" |
db2df898 | 61 | #include "io-util.h" |
6300502b | 62 | #include "locale-setup.h" |
663996b3 | 63 | #include "log.h" |
6300502b | 64 | #include "macro.h" |
db2df898 | 65 | #include "manager.h" |
6300502b | 66 | #include "missing.h" |
663996b3 | 67 | #include "mkdir.h" |
db2df898 | 68 | #include "parse-util.h" |
6300502b MP |
69 | #include "path-lookup.h" |
70 | #include "path-util.h" | |
71 | #include "process-util.h" | |
663996b3 | 72 | #include "ratelimit.h" |
e3bff60a | 73 | #include "rm-rf.h" |
6300502b | 74 | #include "signal-util.h" |
663996b3 | 75 | #include "special.h" |
db2df898 MP |
76 | #include "stat-util.h" |
77 | #include "string-table.h" | |
78 | #include "string-util.h" | |
6300502b MP |
79 | #include "strv.h" |
80 | #include "terminal-util.h" | |
81 | #include "time-util.h" | |
82 | #include "transaction.h" | |
db2df898 | 83 | #include "umask-util.h" |
6300502b MP |
84 | #include "unit-name.h" |
85 | #include "util.h" | |
663996b3 MS |
86 | #include "virt.h" |
87 | #include "watchdog.h" | |
db2df898 MP |
88 | |
89 | #define NOTIFY_RCVBUF_SIZE (8*1024*1024) | |
663996b3 | 90 | |
663996b3 | 91 | /* Initial delay and the interval for printing status messages about running jobs */ |
60f067b4 JS |
92 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
93 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
663996b3 MS |
94 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
95 | ||
60f067b4 JS |
96 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
97 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
98 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
99 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
100 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
101 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); | |
e735f4d4 MP |
102 | static int manager_run_generators(Manager *m); |
103 | static void manager_undo_generators(Manager *m); | |
663996b3 | 104 | |
e3bff60a | 105 | static void manager_watch_jobs_in_progress(Manager *m) { |
60f067b4 | 106 | usec_t next; |
e3bff60a | 107 | int r; |
663996b3 | 108 | |
60f067b4 | 109 | assert(m); |
663996b3 | 110 | |
60f067b4 | 111 | if (m->jobs_in_progress_event_source) |
e3bff60a | 112 | return; |
663996b3 | 113 | |
60f067b4 | 114 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
e3bff60a | 115 | r = sd_event_add_time( |
60f067b4 JS |
116 | m->event, |
117 | &m->jobs_in_progress_event_source, | |
118 | CLOCK_MONOTONIC, | |
119 | next, 0, | |
120 | manager_dispatch_jobs_in_progress, m); | |
e3bff60a MP |
121 | if (r < 0) |
122 | return; | |
123 | ||
124 | (void) sd_event_source_set_description(m->jobs_in_progress_event_source, "manager-jobs-in-progress"); | |
663996b3 MS |
125 | } |
126 | ||
6300502b | 127 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED)-1) + sizeof(ANSI_HIGHLIGHT_RED)-1 + 2*(sizeof(ANSI_NORMAL)-1)) |
663996b3 | 128 | |
663996b3 MS |
129 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
130 | char *p = buffer; | |
131 | ||
132 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
133 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
134 | ||
135 | if (pos > 1) { | |
136 | if (pos > 2) | |
137 | p = mempset(p, ' ', pos-2); | |
6300502b | 138 | p = stpcpy(p, ANSI_RED); |
663996b3 MS |
139 | *p++ = '*'; |
140 | } | |
141 | ||
142 | if (pos > 0 && pos <= width) { | |
6300502b | 143 | p = stpcpy(p, ANSI_HIGHLIGHT_RED); |
663996b3 MS |
144 | *p++ = '*'; |
145 | } | |
146 | ||
6300502b | 147 | p = stpcpy(p, ANSI_NORMAL); |
663996b3 MS |
148 | |
149 | if (pos < width) { | |
6300502b | 150 | p = stpcpy(p, ANSI_RED); |
663996b3 MS |
151 | *p++ = '*'; |
152 | if (pos < width-1) | |
153 | p = mempset(p, ' ', width-1-pos); | |
6300502b | 154 | strcpy(p, ANSI_NORMAL); |
60f067b4 JS |
155 | } |
156 | } | |
157 | ||
158 | void manager_flip_auto_status(Manager *m, bool enable) { | |
159 | assert(m); | |
160 | ||
161 | if (enable) { | |
162 | if (m->show_status == SHOW_STATUS_AUTO) | |
163 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
164 | } else { | |
165 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
166 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
663996b3 MS |
167 | } |
168 | } | |
169 | ||
170 | static void manager_print_jobs_in_progress(Manager *m) { | |
60f067b4 | 171 | _cleanup_free_ char *job_of_n = NULL; |
663996b3 MS |
172 | Iterator i; |
173 | Job *j; | |
663996b3 MS |
174 | unsigned counter = 0, print_nr; |
175 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
176 | unsigned cylon_pos; | |
60f067b4 JS |
177 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
178 | uint64_t x; | |
179 | ||
180 | assert(m); | |
e735f4d4 | 181 | assert(m->n_running_jobs > 0); |
60f067b4 JS |
182 | |
183 | manager_flip_auto_status(m, true); | |
663996b3 MS |
184 | |
185 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
186 | ||
187 | HASHMAP_FOREACH(j, m->jobs, i) | |
188 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
189 | break; | |
190 | ||
191 | /* m->n_running_jobs must be consistent with the contents of m->jobs, | |
192 | * so the above loop must have succeeded in finding j. */ | |
193 | assert(counter == print_nr + 1); | |
60f067b4 | 194 | assert(j); |
663996b3 MS |
195 | |
196 | cylon_pos = m->jobs_in_progress_iteration % 14; | |
197 | if (cylon_pos >= 8) | |
198 | cylon_pos = 14 - cylon_pos; | |
199 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
200 | ||
60f067b4 JS |
201 | m->jobs_in_progress_iteration++; |
202 | ||
e3bff60a MP |
203 | if (m->n_running_jobs > 1) { |
204 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
205 | job_of_n = NULL; | |
206 | } | |
663996b3 | 207 | |
60f067b4 JS |
208 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
209 | if (job_get_timeout(j, &x) > 0) | |
210 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
211 | ||
5eef597e | 212 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon, |
60f067b4 JS |
213 | "%sA %s job is running for %s (%s / %s)", |
214 | strempty(job_of_n), | |
215 | job_type_to_string(j->type), | |
216 | unit_description(j->unit), | |
217 | time, limit); | |
663996b3 MS |
218 | } |
219 | ||
5eef597e MP |
220 | static int have_ask_password(void) { |
221 | _cleanup_closedir_ DIR *dir; | |
222 | ||
223 | dir = opendir("/run/systemd/ask-password"); | |
224 | if (!dir) { | |
225 | if (errno == ENOENT) | |
226 | return false; | |
227 | else | |
228 | return -errno; | |
229 | } | |
230 | ||
231 | for (;;) { | |
232 | struct dirent *de; | |
233 | ||
234 | errno = 0; | |
235 | de = readdir(dir); | |
236 | if (!de && errno != 0) | |
237 | return -errno; | |
238 | if (!de) | |
239 | return false; | |
240 | ||
241 | if (startswith(de->d_name, "ask.")) | |
242 | return true; | |
243 | } | |
244 | } | |
245 | ||
246 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
247 | int fd, uint32_t revents, void *userdata) { | |
248 | Manager *m = userdata; | |
249 | ||
250 | assert(m); | |
251 | ||
252 | flush_fd(fd); | |
253 | ||
254 | m->have_ask_password = have_ask_password(); | |
255 | if (m->have_ask_password < 0) | |
256 | /* Log error but continue. Negative have_ask_password | |
257 | * is treated as unknown status. */ | |
f47781d8 | 258 | log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m"); |
5eef597e MP |
259 | |
260 | return 0; | |
261 | } | |
262 | ||
263 | static void manager_close_ask_password(Manager *m) { | |
264 | assert(m); | |
265 | ||
5eef597e | 266 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); |
d9dfd233 | 267 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); |
5eef597e MP |
268 | m->have_ask_password = -EINVAL; |
269 | } | |
270 | ||
271 | static int manager_check_ask_password(Manager *m) { | |
272 | int r; | |
273 | ||
274 | assert(m); | |
275 | ||
276 | if (!m->ask_password_event_source) { | |
277 | assert(m->ask_password_inotify_fd < 0); | |
278 | ||
279 | mkdir_p_label("/run/systemd/ask-password", 0755); | |
280 | ||
281 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
f47781d8 MP |
282 | if (m->ask_password_inotify_fd < 0) |
283 | return log_error_errno(errno, "inotify_init1() failed: %m"); | |
5eef597e MP |
284 | |
285 | if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) { | |
f47781d8 | 286 | log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m"); |
5eef597e MP |
287 | manager_close_ask_password(m); |
288 | return -errno; | |
289 | } | |
290 | ||
291 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
292 | m->ask_password_inotify_fd, EPOLLIN, | |
293 | manager_dispatch_ask_password_fd, m); | |
294 | if (r < 0) { | |
f47781d8 | 295 | log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m"); |
5eef597e MP |
296 | manager_close_ask_password(m); |
297 | return -errno; | |
298 | } | |
299 | ||
e3bff60a MP |
300 | (void) sd_event_source_set_description(m->ask_password_event_source, "manager-ask-password"); |
301 | ||
5eef597e MP |
302 | /* Queries might have been added meanwhile... */ |
303 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
304 | m->ask_password_inotify_fd, EPOLLIN, m); | |
305 | } | |
306 | ||
307 | return m->have_ask_password; | |
308 | } | |
309 | ||
14228c0d | 310 | static int manager_watch_idle_pipe(Manager *m) { |
14228c0d MB |
311 | int r; |
312 | ||
60f067b4 JS |
313 | assert(m); |
314 | ||
315 | if (m->idle_pipe_event_source) | |
14228c0d MB |
316 | return 0; |
317 | ||
318 | if (m->idle_pipe[2] < 0) | |
319 | return 0; | |
320 | ||
60f067b4 | 321 | 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 |
322 | if (r < 0) |
323 | return log_error_errno(r, "Failed to watch idle pipe: %m"); | |
14228c0d | 324 | |
e3bff60a MP |
325 | (void) sd_event_source_set_description(m->idle_pipe_event_source, "manager-idle-pipe"); |
326 | ||
14228c0d | 327 | return 0; |
14228c0d MB |
328 | } |
329 | ||
60f067b4 JS |
330 | static void manager_close_idle_pipe(Manager *m) { |
331 | assert(m); | |
14228c0d | 332 | |
6300502b MP |
333 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
334 | ||
60f067b4 JS |
335 | safe_close_pair(m->idle_pipe); |
336 | safe_close_pair(m->idle_pipe + 2); | |
14228c0d MB |
337 | } |
338 | ||
663996b3 | 339 | static int manager_setup_time_change(Manager *m) { |
60f067b4 | 340 | int r; |
663996b3 MS |
341 | |
342 | /* We only care for the cancellation event, hence we set the | |
343 | * timeout to the latest possible value. */ | |
344 | struct itimerspec its = { | |
345 | .it_value.tv_sec = TIME_T_MAX, | |
346 | }; | |
663996b3 | 347 | |
60f067b4 JS |
348 | assert(m); |
349 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
663996b3 | 350 | |
5eef597e MP |
351 | if (m->test_run) |
352 | return 0; | |
353 | ||
663996b3 MS |
354 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever |
355 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
356 | ||
60f067b4 | 357 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
f47781d8 MP |
358 | if (m->time_change_fd < 0) |
359 | return log_error_errno(errno, "Failed to create timerfd: %m"); | |
663996b3 | 360 | |
60f067b4 | 361 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
f47781d8 | 362 | log_debug_errno(errno, "Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
60f067b4 | 363 | m->time_change_fd = safe_close(m->time_change_fd); |
663996b3 MS |
364 | return 0; |
365 | } | |
366 | ||
60f067b4 | 367 | 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 |
368 | if (r < 0) |
369 | return log_error_errno(r, "Failed to create time change event source: %m"); | |
663996b3 | 370 | |
e3bff60a MP |
371 | (void) sd_event_source_set_description(m->time_change_event_source, "manager-time-change"); |
372 | ||
663996b3 MS |
373 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
378 | static int enable_special_signals(Manager *m) { | |
60f067b4 | 379 | _cleanup_close_ int fd = -1; |
663996b3 MS |
380 | |
381 | assert(m); | |
382 | ||
383 | /* Enable that we get SIGINT on control-alt-del. In containers | |
384 | * this will fail with EPERM (older) or EINVAL (newer), so | |
385 | * ignore that. */ | |
386 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
f47781d8 | 387 | log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m"); |
663996b3 MS |
388 | |
389 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); | |
390 | if (fd < 0) { | |
391 | /* Support systems without virtual console */ | |
392 | if (fd != -ENOENT) | |
f47781d8 | 393 | log_warning_errno(errno, "Failed to open /dev/tty0: %m"); |
663996b3 MS |
394 | } else { |
395 | /* Enable that we get SIGWINCH on kbrequest */ | |
396 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f47781d8 | 397 | log_warning_errno(errno, "Failed to enable kbrequest handling: %m"); |
663996b3 MS |
398 | } |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | static int manager_setup_signals(Manager *m) { | |
663996b3 MS |
404 | struct sigaction sa = { |
405 | .sa_handler = SIG_DFL, | |
406 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
407 | }; | |
60f067b4 JS |
408 | sigset_t mask; |
409 | int r; | |
663996b3 MS |
410 | |
411 | assert(m); | |
412 | ||
663996b3 MS |
413 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
414 | ||
5eef597e MP |
415 | /* We make liberal use of realtime signals here. On |
416 | * Linux/glibc we have 30 of them (with the exception of Linux | |
417 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
418 | * (aka SIGRTMAX). */ | |
663996b3 | 419 | |
5eef597e | 420 | assert_se(sigemptyset(&mask) == 0); |
663996b3 MS |
421 | sigset_add_many(&mask, |
422 | SIGCHLD, /* Child died */ | |
423 | SIGTERM, /* Reexecute daemon */ | |
424 | SIGHUP, /* Reload configuration */ | |
425 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
426 | SIGUSR2, /* systemd: dump status */ | |
427 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
428 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
429 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
5eef597e | 430 | |
663996b3 MS |
431 | SIGRTMIN+0, /* systemd: start default.target */ |
432 | SIGRTMIN+1, /* systemd: isolate rescue.target */ | |
433 | SIGRTMIN+2, /* systemd: isolate emergency.target */ | |
434 | SIGRTMIN+3, /* systemd: start halt.target */ | |
435 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
436 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
437 | SIGRTMIN+6, /* systemd: start kexec.target */ | |
5eef597e MP |
438 | |
439 | /* ... space for more special targets ... */ | |
440 | ||
663996b3 MS |
441 | SIGRTMIN+13, /* systemd: Immediate halt */ |
442 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
443 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
444 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
5eef597e MP |
445 | |
446 | /* ... space for more immediate system state changes ... */ | |
447 | ||
663996b3 MS |
448 | SIGRTMIN+20, /* systemd: enable status messages */ |
449 | SIGRTMIN+21, /* systemd: disable status messages */ | |
450 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ | |
451 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
452 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ | |
5eef597e MP |
453 | |
454 | /* .. one free signal here ... */ | |
455 | ||
456 | #if !defined(__hppa64__) && !defined(__hppa__) | |
457 | /* Apparently Linux on hppa has fewer RT | |
458 | * signals (SIGRTMAX is SIGRTMIN+25 there), | |
459 | * hence let's not try to make use of them | |
460 | * here. Since these commands are accessible | |
461 | * by different means and only really a safety | |
462 | * net, the missing functionality on hppa | |
463 | * shouldn't matter. */ | |
464 | ||
663996b3 MS |
465 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
466 | SIGRTMIN+27, /* systemd: set log target to console */ | |
467 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
e735f4d4 | 468 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete) */ |
5eef597e MP |
469 | |
470 | /* ... one free signal here SIGRTMIN+30 ... */ | |
471 | #endif | |
663996b3 MS |
472 | -1); |
473 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); | |
474 | ||
60f067b4 JS |
475 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
476 | if (m->signal_fd < 0) | |
663996b3 MS |
477 | return -errno; |
478 | ||
60f067b4 JS |
479 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
480 | if (r < 0) | |
481 | return r; | |
482 | ||
e3bff60a MP |
483 | (void) sd_event_source_set_description(m->signal_event_source, "manager-signal"); |
484 | ||
60f067b4 | 485 | /* Process signals a bit earlier than the rest of things, but |
5eef597e | 486 | * later than notify_fd processing, so that the notify |
60f067b4 JS |
487 | * processing can still figure out to which process/service a |
488 | * message belongs, before we reap the process. */ | |
db2df898 | 489 | r = sd_event_source_set_priority(m->signal_event_source, SD_EVENT_PRIORITY_NORMAL-5); |
60f067b4 JS |
490 | if (r < 0) |
491 | return r; | |
663996b3 | 492 | |
e3bff60a | 493 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
494 | return enable_special_signals(m); |
495 | ||
496 | return 0; | |
497 | } | |
498 | ||
60f067b4 JS |
499 | static void manager_clean_environment(Manager *m) { |
500 | assert(m); | |
501 | ||
502 | /* Let's remove some environment variables that we | |
503 | * need ourselves to communicate with our clients */ | |
504 | strv_env_unset_many( | |
505 | m->environment, | |
506 | "NOTIFY_SOCKET", | |
507 | "MAINPID", | |
508 | "MANAGERPID", | |
509 | "LISTEN_PID", | |
510 | "LISTEN_FDS", | |
6300502b | 511 | "LISTEN_FDNAMES", |
60f067b4 JS |
512 | "WATCHDOG_PID", |
513 | "WATCHDOG_USEC", | |
514 | NULL); | |
515 | } | |
516 | ||
14228c0d | 517 | static int manager_default_environment(Manager *m) { |
663996b3 MS |
518 | assert(m); |
519 | ||
e3bff60a | 520 | if (m->running_as == MANAGER_SYSTEM) { |
14228c0d MB |
521 | /* The system manager always starts with a clean |
522 | * environment for its children. It does not import | |
523 | * the kernel or the parents exported variables. | |
524 | * | |
525 | * The initial passed environ is untouched to keep | |
526 | * /proc/self/environ valid; it is used for tagging | |
527 | * the init process inside containers. */ | |
528 | m->environment = strv_new("PATH=" DEFAULT_PATH, | |
529 | NULL); | |
530 | ||
531 | /* Import locale variables LC_*= from configuration */ | |
532 | locale_setup(&m->environment); | |
60f067b4 | 533 | } else { |
14228c0d MB |
534 | /* The user manager passes its own environment |
535 | * along to its children. */ | |
536 | m->environment = strv_copy(environ); | |
60f067b4 | 537 | } |
663996b3 | 538 | |
14228c0d MB |
539 | if (!m->environment) |
540 | return -ENOMEM; | |
663996b3 | 541 | |
60f067b4 JS |
542 | manager_clean_environment(m); |
543 | strv_sort(m->environment); | |
544 | ||
14228c0d | 545 | return 0; |
663996b3 MS |
546 | } |
547 | ||
e3bff60a MP |
548 | |
549 | int manager_new(ManagerRunningAs running_as, bool test_run, Manager **_m) { | |
550 | ||
551 | static const char * const unit_log_fields[_MANAGER_RUNNING_AS_MAX] = { | |
552 | [MANAGER_SYSTEM] = "UNIT=", | |
553 | [MANAGER_USER] = "USER_UNIT=", | |
554 | }; | |
555 | ||
556 | static const char * const unit_log_format_strings[_MANAGER_RUNNING_AS_MAX] = { | |
557 | [MANAGER_SYSTEM] = "UNIT=%s", | |
558 | [MANAGER_USER] = "USER_UNIT=%s", | |
559 | }; | |
560 | ||
663996b3 | 561 | Manager *m; |
60f067b4 | 562 | int r; |
663996b3 MS |
563 | |
564 | assert(_m); | |
565 | assert(running_as >= 0); | |
e3bff60a | 566 | assert(running_as < _MANAGER_RUNNING_AS_MAX); |
663996b3 MS |
567 | |
568 | m = new0(Manager, 1); | |
569 | if (!m) | |
570 | return -ENOMEM; | |
571 | ||
14228c0d | 572 | #ifdef ENABLE_EFI |
6300502b | 573 | if (running_as == MANAGER_SYSTEM && detect_container() <= 0) |
14228c0d MB |
574 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
575 | #endif | |
576 | ||
663996b3 | 577 | m->running_as = running_as; |
663996b3 | 578 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
60f067b4 | 579 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
db2df898 MP |
580 | m->default_tasks_accounting = true; |
581 | m->default_tasks_max = UINT64_C(512); | |
663996b3 | 582 | |
e3bff60a MP |
583 | /* Prepare log fields we can use for structured logging */ |
584 | m->unit_log_field = unit_log_fields[running_as]; | |
585 | m->unit_log_format_string = unit_log_format_strings[running_as]; | |
586 | ||
60f067b4 | 587 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
663996b3 | 588 | |
d9dfd233 | 589 | m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = |
6300502b MP |
590 | m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = m->cgroup_inotify_fd = -1; |
591 | ||
663996b3 MS |
592 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
593 | ||
5eef597e MP |
594 | m->ask_password_inotify_fd = -1; |
595 | m->have_ask_password = -EINVAL; /* we don't know */ | |
d9dfd233 | 596 | m->first_boot = -1; |
5eef597e | 597 | |
6300502b MP |
598 | m->cgroup_netclass_registry_last = CGROUP_NETCLASS_FIXED_MAX; |
599 | ||
5eef597e MP |
600 | m->test_run = test_run; |
601 | ||
e735f4d4 MP |
602 | /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */ |
603 | RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7); | |
604 | ||
14228c0d MB |
605 | r = manager_default_environment(m); |
606 | if (r < 0) | |
663996b3 MS |
607 | goto fail; |
608 | ||
5eef597e | 609 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
60f067b4 | 610 | if (r < 0) |
663996b3 MS |
611 | goto fail; |
612 | ||
5eef597e | 613 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
60f067b4 | 614 | if (r < 0) |
663996b3 MS |
615 | goto fail; |
616 | ||
5eef597e | 617 | r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops); |
60f067b4 | 618 | if (r < 0) |
663996b3 MS |
619 | goto fail; |
620 | ||
5eef597e | 621 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
60f067b4 | 622 | if (r < 0) |
663996b3 MS |
623 | goto fail; |
624 | ||
60f067b4 | 625 | r = sd_event_default(&m->event); |
663996b3 MS |
626 | if (r < 0) |
627 | goto fail; | |
628 | ||
60f067b4 | 629 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
663996b3 MS |
630 | if (r < 0) |
631 | goto fail; | |
632 | ||
60f067b4 JS |
633 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); |
634 | if (r < 0) | |
635 | goto fail; | |
636 | ||
637 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
638 | if (r < 0) | |
639 | goto fail; | |
640 | ||
e3bff60a MP |
641 | (void) sd_event_source_set_description(m->run_queue_event_source, "manager-run-queue"); |
642 | ||
60f067b4 JS |
643 | r = manager_setup_signals(m); |
644 | if (r < 0) | |
645 | goto fail; | |
646 | ||
647 | r = manager_setup_cgroup(m); | |
663996b3 MS |
648 | if (r < 0) |
649 | goto fail; | |
650 | ||
651 | r = manager_setup_time_change(m); | |
652 | if (r < 0) | |
653 | goto fail; | |
654 | ||
60f067b4 JS |
655 | m->udev = udev_new(); |
656 | if (!m->udev) { | |
657 | r = -ENOMEM; | |
658 | goto fail; | |
659 | } | |
660 | ||
661 | /* Note that we set up neither kdbus, nor the notify fd | |
662 | * here. We do that after deserialization, since they might | |
663 | * have gotten serialized across the reexec. */ | |
663996b3 MS |
664 | |
665 | m->taint_usr = dir_is_empty("/usr") > 0; | |
666 | ||
667 | *_m = m; | |
668 | return 0; | |
669 | ||
670 | fail: | |
671 | manager_free(m); | |
672 | return r; | |
673 | } | |
674 | ||
60f067b4 JS |
675 | static int manager_setup_notify(Manager *m) { |
676 | int r; | |
677 | ||
5eef597e MP |
678 | if (m->test_run) |
679 | return 0; | |
680 | ||
60f067b4 JS |
681 | if (m->notify_fd < 0) { |
682 | _cleanup_close_ int fd = -1; | |
86f210e9 | 683 | union sockaddr_union sa = { |
60f067b4 JS |
684 | .sa.sa_family = AF_UNIX, |
685 | }; | |
5eef597e | 686 | static const int one = 1; |
60f067b4 JS |
687 | |
688 | /* First free all secondary fields */ | |
6300502b | 689 | m->notify_socket = mfree(m->notify_socket); |
60f067b4 JS |
690 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
691 | ||
692 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
f47781d8 MP |
693 | if (fd < 0) |
694 | return log_error_errno(errno, "Failed to allocate notification socket: %m"); | |
60f067b4 | 695 | |
db2df898 MP |
696 | fd_inc_rcvbuf(fd, NOTIFY_RCVBUF_SIZE); |
697 | ||
e3bff60a | 698 | if (m->running_as == MANAGER_SYSTEM) |
60f067b4 JS |
699 | m->notify_socket = strdup("/run/systemd/notify"); |
700 | else { | |
701 | const char *e; | |
702 | ||
703 | e = getenv("XDG_RUNTIME_DIR"); | |
704 | if (!e) { | |
f47781d8 | 705 | log_error_errno(errno, "XDG_RUNTIME_DIR is not set: %m"); |
60f067b4 JS |
706 | return -EINVAL; |
707 | } | |
708 | ||
709 | m->notify_socket = strappend(e, "/systemd/notify"); | |
710 | } | |
711 | if (!m->notify_socket) | |
712 | return log_oom(); | |
713 | ||
f47781d8 MP |
714 | (void) mkdir_parents_label(m->notify_socket, 0755); |
715 | (void) unlink(m->notify_socket); | |
716 | ||
60f067b4 JS |
717 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); |
718 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
f47781d8 MP |
719 | if (r < 0) |
720 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
60f067b4 JS |
721 | |
722 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
f47781d8 MP |
723 | if (r < 0) |
724 | return log_error_errno(errno, "SO_PASSCRED failed: %m"); | |
60f067b4 JS |
725 | |
726 | m->notify_fd = fd; | |
727 | fd = -1; | |
728 | ||
729 | log_debug("Using notification socket %s", m->notify_socket); | |
730 | } | |
731 | ||
732 | if (!m->notify_event_source) { | |
733 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); | |
f47781d8 MP |
734 | if (r < 0) |
735 | return log_error_errno(r, "Failed to allocate notify event source: %m"); | |
60f067b4 JS |
736 | |
737 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
738 | * still identify to which service an exit message belongs */ | |
db2df898 | 739 | r = sd_event_source_set_priority(m->notify_event_source, SD_EVENT_PRIORITY_NORMAL-7); |
f47781d8 MP |
740 | if (r < 0) |
741 | return log_error_errno(r, "Failed to set priority of notify event source: %m"); | |
e3bff60a MP |
742 | |
743 | (void) sd_event_source_set_description(m->notify_event_source, "manager-notify"); | |
60f067b4 JS |
744 | } |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
749 | static int manager_setup_kdbus(Manager *m) { | |
60f067b4 | 750 | _cleanup_free_ char *p = NULL; |
60f067b4 | 751 | |
60f067b4 JS |
752 | assert(m); |
753 | ||
5eef597e | 754 | if (m->test_run || m->kdbus_fd >= 0) |
60f067b4 | 755 | return 0; |
e3bff60a MP |
756 | if (!is_kdbus_available()) |
757 | return -ESOCKTNOSUPPORT; | |
60f067b4 | 758 | |
f47781d8 | 759 | m->kdbus_fd = bus_kernel_create_bus( |
e3bff60a MP |
760 | m->running_as == MANAGER_SYSTEM ? "system" : "user", |
761 | m->running_as == MANAGER_SYSTEM, &p); | |
60f067b4 | 762 | |
f47781d8 MP |
763 | if (m->kdbus_fd < 0) |
764 | return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m"); | |
765 | ||
766 | log_debug("Successfully set up kdbus on %s", p); | |
60f067b4 JS |
767 | |
768 | return 0; | |
769 | } | |
770 | ||
771 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
772 | bool try_bus_connect; | |
773 | ||
774 | assert(m); | |
775 | ||
5eef597e MP |
776 | if (m->test_run) |
777 | return 0; | |
778 | ||
60f067b4 JS |
779 | try_bus_connect = |
780 | m->kdbus_fd >= 0 || | |
781 | reexecuting || | |
e3bff60a | 782 | (m->running_as == MANAGER_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); |
60f067b4 | 783 | |
e3bff60a | 784 | /* Try to connect to the buses, if possible. */ |
60f067b4 JS |
785 | return bus_init(m, try_bus_connect); |
786 | } | |
787 | ||
663996b3 MS |
788 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
789 | Unit *u; | |
790 | unsigned n = 0; | |
791 | ||
792 | assert(m); | |
793 | ||
794 | while ((u = m->cleanup_queue)) { | |
795 | assert(u->in_cleanup_queue); | |
796 | ||
797 | unit_free(u); | |
798 | n++; | |
799 | } | |
800 | ||
801 | return n; | |
802 | } | |
803 | ||
804 | enum { | |
805 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ | |
806 | GC_OFFSET_UNSURE, /* No clue */ | |
807 | GC_OFFSET_GOOD, /* We still need this unit */ | |
808 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
809 | _GC_OFFSET_MAX | |
810 | }; | |
811 | ||
812 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
813 | Iterator i; | |
814 | Unit *other; | |
815 | bool is_bad; | |
816 | ||
817 | assert(u); | |
818 | ||
819 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || | |
820 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
821 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
822 | return; | |
823 | ||
824 | if (u->in_cleanup_queue) | |
825 | goto bad; | |
826 | ||
827 | if (unit_check_gc(u)) | |
828 | goto good; | |
829 | ||
830 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; | |
831 | ||
832 | is_bad = true; | |
833 | ||
834 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { | |
835 | unit_gc_sweep(other, gc_marker); | |
836 | ||
837 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) | |
838 | goto good; | |
839 | ||
840 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) | |
841 | is_bad = false; | |
842 | } | |
843 | ||
844 | if (is_bad) | |
845 | goto bad; | |
846 | ||
847 | /* We were unable to find anything out about this entry, so | |
848 | * let's investigate it later */ | |
849 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; | |
850 | unit_add_to_gc_queue(u); | |
851 | return; | |
852 | ||
853 | bad: | |
854 | /* We definitely know that this one is not useful anymore, so | |
855 | * let's mark it for deletion */ | |
856 | u->gc_marker = gc_marker + GC_OFFSET_BAD; | |
857 | unit_add_to_cleanup_queue(u); | |
858 | return; | |
859 | ||
860 | good: | |
861 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; | |
862 | } | |
863 | ||
864 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
865 | Unit *u; | |
866 | unsigned n = 0; | |
867 | unsigned gc_marker; | |
868 | ||
869 | assert(m); | |
870 | ||
14228c0d | 871 | /* log_debug("Running GC..."); */ |
663996b3 MS |
872 | |
873 | m->gc_marker += _GC_OFFSET_MAX; | |
874 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
875 | m->gc_marker = 1; | |
876 | ||
877 | gc_marker = m->gc_marker; | |
878 | ||
879 | while ((u = m->gc_queue)) { | |
880 | assert(u->in_gc_queue); | |
881 | ||
882 | unit_gc_sweep(u, gc_marker); | |
883 | ||
60f067b4 | 884 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
663996b3 MS |
885 | u->in_gc_queue = false; |
886 | ||
887 | n++; | |
888 | ||
889 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
890 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
e3bff60a MP |
891 | if (u->id) |
892 | log_unit_debug(u, "Collecting."); | |
663996b3 MS |
893 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
894 | unit_add_to_cleanup_queue(u); | |
895 | } | |
896 | } | |
897 | ||
898 | m->n_in_gc_queue = 0; | |
663996b3 MS |
899 | |
900 | return n; | |
901 | } | |
902 | ||
903 | static void manager_clear_jobs_and_units(Manager *m) { | |
904 | Unit *u; | |
905 | ||
906 | assert(m); | |
907 | ||
908 | while ((u = hashmap_first(m->units))) | |
909 | unit_free(u); | |
910 | ||
911 | manager_dispatch_cleanup_queue(m); | |
912 | ||
913 | assert(!m->load_queue); | |
914 | assert(!m->run_queue); | |
915 | assert(!m->dbus_unit_queue); | |
916 | assert(!m->dbus_job_queue); | |
917 | assert(!m->cleanup_queue); | |
918 | assert(!m->gc_queue); | |
919 | ||
920 | assert(hashmap_isempty(m->jobs)); | |
921 | assert(hashmap_isempty(m->units)); | |
922 | ||
923 | m->n_on_console = 0; | |
924 | m->n_running_jobs = 0; | |
925 | } | |
926 | ||
f47781d8 | 927 | Manager* manager_free(Manager *m) { |
663996b3 MS |
928 | UnitType c; |
929 | int i; | |
930 | ||
f47781d8 MP |
931 | if (!m) |
932 | return NULL; | |
663996b3 MS |
933 | |
934 | manager_clear_jobs_and_units(m); | |
935 | ||
936 | for (c = 0; c < _UNIT_TYPE_MAX; c++) | |
937 | if (unit_vtable[c]->shutdown) | |
938 | unit_vtable[c]->shutdown(m); | |
939 | ||
940 | /* If we reexecute ourselves, we keep the root cgroup | |
941 | * around */ | |
942 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); | |
943 | ||
944 | manager_undo_generators(m); | |
945 | ||
946 | bus_done(m); | |
947 | ||
948 | hashmap_free(m->units); | |
949 | hashmap_free(m->jobs); | |
60f067b4 JS |
950 | hashmap_free(m->watch_pids1); |
951 | hashmap_free(m->watch_pids2); | |
663996b3 MS |
952 | hashmap_free(m->watch_bus); |
953 | ||
60f067b4 JS |
954 | set_free(m->startup_units); |
955 | set_free(m->failed_units); | |
956 | ||
957 | sd_event_source_unref(m->signal_event_source); | |
958 | sd_event_source_unref(m->notify_event_source); | |
959 | sd_event_source_unref(m->time_change_event_source); | |
960 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
60f067b4 JS |
961 | sd_event_source_unref(m->run_queue_event_source); |
962 | ||
963 | safe_close(m->signal_fd); | |
964 | safe_close(m->notify_fd); | |
965 | safe_close(m->time_change_fd); | |
966 | safe_close(m->kdbus_fd); | |
967 | ||
5eef597e MP |
968 | manager_close_ask_password(m); |
969 | ||
60f067b4 JS |
970 | manager_close_idle_pipe(m); |
971 | ||
972 | udev_unref(m->udev); | |
973 | sd_event_unref(m->event); | |
663996b3 MS |
974 | |
975 | free(m->notify_socket); | |
976 | ||
977 | lookup_paths_free(&m->lookup_paths); | |
978 | strv_free(m->environment); | |
979 | ||
14228c0d | 980 | hashmap_free(m->cgroup_unit); |
663996b3 MS |
981 | set_free_free(m->unit_path_cache); |
982 | ||
6300502b MP |
983 | hashmap_free(m->cgroup_netclass_registry); |
984 | ||
663996b3 MS |
985 | free(m->switch_root); |
986 | free(m->switch_root_init); | |
987 | ||
60f067b4 | 988 | for (i = 0; i < _RLIMIT_MAX; i++) |
663996b3 MS |
989 | free(m->rlimit[i]); |
990 | ||
14228c0d MB |
991 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
992 | hashmap_free(m->units_requiring_mounts_for); | |
993 | ||
663996b3 | 994 | free(m); |
f47781d8 | 995 | return NULL; |
663996b3 MS |
996 | } |
997 | ||
db2df898 | 998 | void manager_enumerate(Manager *m) { |
663996b3 MS |
999 | UnitType c; |
1000 | ||
1001 | assert(m); | |
1002 | ||
1003 | /* Let's ask every type to load all units from disk/kernel | |
1004 | * that it might know */ | |
e735f4d4 | 1005 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { |
e3bff60a MP |
1006 | if (!unit_type_supported(c)) { |
1007 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); | |
e735f4d4 | 1008 | continue; |
14228c0d | 1009 | } |
663996b3 | 1010 | |
e735f4d4 MP |
1011 | if (!unit_vtable[c]->enumerate) |
1012 | continue; | |
1013 | ||
db2df898 | 1014 | unit_vtable[c]->enumerate(m); |
e735f4d4 MP |
1015 | } |
1016 | ||
663996b3 | 1017 | manager_dispatch_load_queue(m); |
663996b3 MS |
1018 | } |
1019 | ||
e3bff60a | 1020 | static void manager_coldplug(Manager *m) { |
663996b3 MS |
1021 | Iterator i; |
1022 | Unit *u; | |
1023 | char *k; | |
e3bff60a | 1024 | int r; |
663996b3 MS |
1025 | |
1026 | assert(m); | |
1027 | ||
1028 | /* Then, let's set up their initial state. */ | |
1029 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
1030 | ||
1031 | /* ignore aliases */ | |
1032 | if (u->id != k) | |
1033 | continue; | |
1034 | ||
e3bff60a MP |
1035 | r = unit_coldplug(u); |
1036 | if (r < 0) | |
1037 | log_warning_errno(r, "We couldn't coldplug %s, proceeding anyway: %m", u->id); | |
663996b3 | 1038 | } |
663996b3 MS |
1039 | } |
1040 | ||
1041 | static void manager_build_unit_path_cache(Manager *m) { | |
1042 | char **i; | |
5eef597e | 1043 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
1044 | int r; |
1045 | ||
1046 | assert(m); | |
1047 | ||
1048 | set_free_free(m->unit_path_cache); | |
1049 | ||
5eef597e | 1050 | m->unit_path_cache = set_new(&string_hash_ops); |
663996b3 MS |
1051 | if (!m->unit_path_cache) { |
1052 | log_error("Failed to allocate unit path cache."); | |
1053 | return; | |
1054 | } | |
1055 | ||
1056 | /* This simply builds a list of files we know exist, so that | |
1057 | * we don't always have to go to disk */ | |
1058 | ||
1059 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
1060 | struct dirent *de; | |
1061 | ||
1062 | d = opendir(*i); | |
1063 | if (!d) { | |
1064 | if (errno != ENOENT) | |
f47781d8 | 1065 | log_error_errno(errno, "Failed to open directory %s: %m", *i); |
663996b3 MS |
1066 | continue; |
1067 | } | |
1068 | ||
1069 | while ((de = readdir(d))) { | |
1070 | char *p; | |
1071 | ||
e735f4d4 | 1072 | if (hidden_file(de->d_name)) |
663996b3 MS |
1073 | continue; |
1074 | ||
1075 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); | |
1076 | if (!p) { | |
1077 | r = -ENOMEM; | |
1078 | goto fail; | |
1079 | } | |
1080 | ||
1081 | r = set_consume(m->unit_path_cache, p); | |
1082 | if (r < 0) | |
1083 | goto fail; | |
1084 | } | |
1085 | ||
6300502b | 1086 | d = safe_closedir(d); |
663996b3 MS |
1087 | } |
1088 | ||
1089 | return; | |
1090 | ||
1091 | fail: | |
f47781d8 | 1092 | log_error_errno(r, "Failed to build unit path cache: %m"); |
663996b3 MS |
1093 | |
1094 | set_free_free(m->unit_path_cache); | |
1095 | m->unit_path_cache = NULL; | |
1096 | } | |
1097 | ||
60f067b4 | 1098 | |
db2df898 | 1099 | static void manager_distribute_fds(Manager *m, FDSet *fds) { |
60f067b4 | 1100 | Iterator i; |
db2df898 | 1101 | Unit *u; |
60f067b4 JS |
1102 | |
1103 | assert(m); | |
1104 | ||
1105 | HASHMAP_FOREACH(u, m->units, i) { | |
1106 | ||
1107 | if (fdset_size(fds) <= 0) | |
1108 | break; | |
1109 | ||
db2df898 MP |
1110 | if (!UNIT_VTABLE(u)->distribute_fds) |
1111 | continue; | |
60f067b4 | 1112 | |
db2df898 MP |
1113 | UNIT_VTABLE(u)->distribute_fds(u, fds); |
1114 | } | |
60f067b4 JS |
1115 | } |
1116 | ||
663996b3 MS |
1117 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
1118 | int r, q; | |
1119 | ||
1120 | assert(m); | |
1121 | ||
14228c0d | 1122 | dual_timestamp_get(&m->generators_start_timestamp); |
e735f4d4 | 1123 | r = manager_run_generators(m); |
14228c0d | 1124 | dual_timestamp_get(&m->generators_finish_timestamp); |
e735f4d4 MP |
1125 | if (r < 0) |
1126 | return r; | |
663996b3 MS |
1127 | |
1128 | r = lookup_paths_init( | |
1129 | &m->lookup_paths, m->running_as, true, | |
60f067b4 | 1130 | NULL, |
663996b3 MS |
1131 | m->generator_unit_path, |
1132 | m->generator_unit_path_early, | |
1133 | m->generator_unit_path_late); | |
1134 | if (r < 0) | |
1135 | return r; | |
1136 | ||
1137 | manager_build_unit_path_cache(m); | |
1138 | ||
1139 | /* If we will deserialize make sure that during enumeration | |
1140 | * this is already known, so we increase the counter here | |
1141 | * already */ | |
1142 | if (serialization) | |
1143 | m->n_reloading ++; | |
1144 | ||
1145 | /* First, enumerate what we can from all config files */ | |
60f067b4 | 1146 | dual_timestamp_get(&m->units_load_start_timestamp); |
db2df898 | 1147 | manager_enumerate(m); |
60f067b4 | 1148 | dual_timestamp_get(&m->units_load_finish_timestamp); |
663996b3 MS |
1149 | |
1150 | /* Second, deserialize if there is something to deserialize */ | |
5eef597e MP |
1151 | if (serialization) |
1152 | r = manager_deserialize(m, serialization, fds); | |
663996b3 MS |
1153 | |
1154 | /* Any fds left? Find some unit which wants them. This is | |
1155 | * useful to allow container managers to pass some file | |
1156 | * descriptors to us pre-initialized. This enables | |
1157 | * socket-based activation of entire containers. */ | |
db2df898 | 1158 | manager_distribute_fds(m, fds); |
663996b3 | 1159 | |
60f067b4 JS |
1160 | /* We might have deserialized the notify fd, but if we didn't |
1161 | * then let's create the bus now */ | |
5eef597e MP |
1162 | q = manager_setup_notify(m); |
1163 | if (q < 0 && r == 0) | |
1164 | r = q; | |
60f067b4 JS |
1165 | |
1166 | /* We might have deserialized the kdbus control fd, but if we | |
1167 | * didn't, then let's create the bus now. */ | |
1168 | manager_setup_kdbus(m); | |
1169 | manager_connect_bus(m, !!serialization); | |
1170 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); | |
1171 | ||
663996b3 | 1172 | /* Third, fire things up! */ |
e3bff60a | 1173 | manager_coldplug(m); |
663996b3 MS |
1174 | |
1175 | if (serialization) { | |
1176 | assert(m->n_reloading > 0); | |
1177 | m->n_reloading --; | |
14228c0d MB |
1178 | |
1179 | /* Let's wait for the UnitNew/JobNew messages being | |
1180 | * sent, before we notify that the reload is | |
1181 | * finished */ | |
1182 | m->send_reloading_done = true; | |
663996b3 MS |
1183 | } |
1184 | ||
1185 | return r; | |
1186 | } | |
1187 | ||
db2df898 | 1188 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, sd_bus_error *e, Job **_ret) { |
663996b3 MS |
1189 | int r; |
1190 | Transaction *tr; | |
1191 | ||
1192 | assert(m); | |
1193 | assert(type < _JOB_TYPE_MAX); | |
1194 | assert(unit); | |
1195 | assert(mode < _JOB_MODE_MAX); | |
1196 | ||
f47781d8 MP |
1197 | if (mode == JOB_ISOLATE && type != JOB_START) |
1198 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); | |
663996b3 | 1199 | |
f47781d8 MP |
1200 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
1201 | return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); | |
663996b3 | 1202 | |
e3bff60a | 1203 | log_unit_debug(unit, "Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); |
663996b3 | 1204 | |
e3bff60a | 1205 | type = job_type_collapse(type, unit); |
663996b3 MS |
1206 | |
1207 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); | |
1208 | if (!tr) | |
1209 | return -ENOMEM; | |
1210 | ||
db2df898 | 1211 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, false, |
663996b3 MS |
1212 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, |
1213 | mode == JOB_IGNORE_DEPENDENCIES, e); | |
1214 | if (r < 0) | |
1215 | goto tr_abort; | |
1216 | ||
1217 | if (mode == JOB_ISOLATE) { | |
1218 | r = transaction_add_isolate_jobs(tr, m); | |
1219 | if (r < 0) | |
1220 | goto tr_abort; | |
1221 | } | |
1222 | ||
1223 | r = transaction_activate(tr, m, mode, e); | |
1224 | if (r < 0) | |
1225 | goto tr_abort; | |
1226 | ||
e3bff60a | 1227 | log_unit_debug(unit, |
663996b3 MS |
1228 | "Enqueued job %s/%s as %u", unit->id, |
1229 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
1230 | ||
1231 | if (_ret) | |
1232 | *_ret = tr->anchor_job; | |
1233 | ||
1234 | transaction_free(tr); | |
1235 | return 0; | |
1236 | ||
1237 | tr_abort: | |
1238 | transaction_abort(tr); | |
1239 | transaction_free(tr); | |
1240 | return r; | |
1241 | } | |
1242 | ||
db2df898 | 1243 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, sd_bus_error *e, Job **ret) { |
663996b3 MS |
1244 | Unit *unit; |
1245 | int r; | |
1246 | ||
1247 | assert(m); | |
1248 | assert(type < _JOB_TYPE_MAX); | |
1249 | assert(name); | |
1250 | assert(mode < _JOB_MODE_MAX); | |
1251 | ||
1252 | r = manager_load_unit(m, name, NULL, NULL, &unit); | |
1253 | if (r < 0) | |
1254 | return r; | |
1255 | ||
db2df898 MP |
1256 | return manager_add_job(m, type, unit, mode, e, ret); |
1257 | } | |
1258 | ||
1259 | int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Job **ret) { | |
1260 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1261 | int r; | |
1262 | ||
1263 | assert(m); | |
1264 | assert(type < _JOB_TYPE_MAX); | |
1265 | assert(name); | |
1266 | assert(mode < _JOB_MODE_MAX); | |
1267 | ||
1268 | r = manager_add_job_by_name(m, type, name, mode, &error, ret); | |
1269 | if (r < 0) | |
1270 | return log_warning_errno(r, "Failed to enqueue %s job for %s: %s", job_mode_to_string(mode), name, bus_error_message(&error, r)); | |
1271 | ||
1272 | return r; | |
663996b3 MS |
1273 | } |
1274 | ||
1275 | Job *manager_get_job(Manager *m, uint32_t id) { | |
1276 | assert(m); | |
1277 | ||
1278 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1279 | } | |
1280 | ||
1281 | Unit *manager_get_unit(Manager *m, const char *name) { | |
1282 | assert(m); | |
1283 | assert(name); | |
1284 | ||
1285 | return hashmap_get(m->units, name); | |
1286 | } | |
1287 | ||
1288 | unsigned manager_dispatch_load_queue(Manager *m) { | |
1289 | Unit *u; | |
1290 | unsigned n = 0; | |
1291 | ||
1292 | assert(m); | |
1293 | ||
1294 | /* Make sure we are not run recursively */ | |
1295 | if (m->dispatching_load_queue) | |
1296 | return 0; | |
1297 | ||
1298 | m->dispatching_load_queue = true; | |
1299 | ||
1300 | /* Dispatches the load queue. Takes a unit from the queue and | |
1301 | * tries to load its data until the queue is empty */ | |
1302 | ||
1303 | while ((u = m->load_queue)) { | |
1304 | assert(u->in_load_queue); | |
1305 | ||
1306 | unit_load(u); | |
1307 | n++; | |
1308 | } | |
1309 | ||
1310 | m->dispatching_load_queue = false; | |
1311 | return n; | |
1312 | } | |
1313 | ||
14228c0d MB |
1314 | int manager_load_unit_prepare( |
1315 | Manager *m, | |
1316 | const char *name, | |
1317 | const char *path, | |
60f067b4 | 1318 | sd_bus_error *e, |
14228c0d MB |
1319 | Unit **_ret) { |
1320 | ||
663996b3 MS |
1321 | Unit *ret; |
1322 | UnitType t; | |
1323 | int r; | |
1324 | ||
1325 | assert(m); | |
1326 | assert(name || path); | |
1327 | ||
1328 | /* This will prepare the unit for loading, but not actually | |
1329 | * load anything from disk. */ | |
1330 | ||
60f067b4 JS |
1331 | if (path && !is_path(path)) |
1332 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
663996b3 MS |
1333 | |
1334 | if (!name) | |
60f067b4 | 1335 | name = basename(path); |
663996b3 MS |
1336 | |
1337 | t = unit_name_to_type(name); | |
1338 | ||
e3bff60a | 1339 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
60f067b4 | 1340 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
663996b3 MS |
1341 | |
1342 | ret = manager_get_unit(m, name); | |
1343 | if (ret) { | |
1344 | *_ret = ret; | |
1345 | return 1; | |
1346 | } | |
1347 | ||
1348 | ret = unit_new(m, unit_vtable[t]->object_size); | |
1349 | if (!ret) | |
1350 | return -ENOMEM; | |
1351 | ||
1352 | if (path) { | |
1353 | ret->fragment_path = strdup(path); | |
1354 | if (!ret->fragment_path) { | |
1355 | unit_free(ret); | |
1356 | return -ENOMEM; | |
1357 | } | |
1358 | } | |
1359 | ||
14228c0d MB |
1360 | r = unit_add_name(ret, name); |
1361 | if (r < 0) { | |
663996b3 MS |
1362 | unit_free(ret); |
1363 | return r; | |
1364 | } | |
1365 | ||
1366 | unit_add_to_load_queue(ret); | |
1367 | unit_add_to_dbus_queue(ret); | |
1368 | unit_add_to_gc_queue(ret); | |
1369 | ||
1370 | if (_ret) | |
1371 | *_ret = ret; | |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
14228c0d MB |
1376 | int manager_load_unit( |
1377 | Manager *m, | |
1378 | const char *name, | |
1379 | const char *path, | |
60f067b4 | 1380 | sd_bus_error *e, |
14228c0d MB |
1381 | Unit **_ret) { |
1382 | ||
663996b3 MS |
1383 | int r; |
1384 | ||
1385 | assert(m); | |
1386 | ||
1387 | /* This will load the service information files, but not actually | |
1388 | * start any services or anything. */ | |
1389 | ||
1390 | r = manager_load_unit_prepare(m, name, path, e, _ret); | |
1391 | if (r != 0) | |
1392 | return r; | |
1393 | ||
1394 | manager_dispatch_load_queue(m); | |
1395 | ||
1396 | if (_ret) | |
1397 | *_ret = unit_follow_merge(*_ret); | |
1398 | ||
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { | |
1403 | Iterator i; | |
1404 | Job *j; | |
1405 | ||
1406 | assert(s); | |
1407 | assert(f); | |
1408 | ||
1409 | HASHMAP_FOREACH(j, s->jobs, i) | |
1410 | job_dump(j, f, prefix); | |
1411 | } | |
1412 | ||
1413 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { | |
1414 | Iterator i; | |
1415 | Unit *u; | |
1416 | const char *t; | |
1417 | ||
1418 | assert(s); | |
1419 | assert(f); | |
1420 | ||
1421 | HASHMAP_FOREACH_KEY(u, t, s->units, i) | |
1422 | if (u->id == t) | |
1423 | unit_dump(u, f, prefix); | |
1424 | } | |
1425 | ||
1426 | void manager_clear_jobs(Manager *m) { | |
1427 | Job *j; | |
1428 | ||
1429 | assert(m); | |
1430 | ||
1431 | while ((j = hashmap_first(m->jobs))) | |
1432 | /* No need to recurse. We're cancelling all jobs. */ | |
1433 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
1434 | } | |
1435 | ||
60f067b4 JS |
1436 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1437 | Manager *m = userdata; | |
663996b3 | 1438 | Job *j; |
663996b3 | 1439 | |
60f067b4 JS |
1440 | assert(source); |
1441 | assert(m); | |
663996b3 MS |
1442 | |
1443 | while ((j = m->run_queue)) { | |
1444 | assert(j->installed); | |
1445 | assert(j->in_run_queue); | |
1446 | ||
1447 | job_run_and_invalidate(j); | |
663996b3 MS |
1448 | } |
1449 | ||
663996b3 MS |
1450 | if (m->n_running_jobs > 0) |
1451 | manager_watch_jobs_in_progress(m); | |
1452 | ||
14228c0d MB |
1453 | if (m->n_on_console > 0) |
1454 | manager_watch_idle_pipe(m); | |
1455 | ||
60f067b4 | 1456 | return 1; |
663996b3 MS |
1457 | } |
1458 | ||
60f067b4 | 1459 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
663996b3 MS |
1460 | Job *j; |
1461 | Unit *u; | |
1462 | unsigned n = 0; | |
1463 | ||
1464 | assert(m); | |
1465 | ||
1466 | if (m->dispatching_dbus_queue) | |
1467 | return 0; | |
1468 | ||
1469 | m->dispatching_dbus_queue = true; | |
1470 | ||
1471 | while ((u = m->dbus_unit_queue)) { | |
1472 | assert(u->in_dbus_queue); | |
1473 | ||
1474 | bus_unit_send_change_signal(u); | |
1475 | n++; | |
1476 | } | |
1477 | ||
1478 | while ((j = m->dbus_job_queue)) { | |
1479 | assert(j->in_dbus_queue); | |
1480 | ||
1481 | bus_job_send_change_signal(j); | |
1482 | n++; | |
1483 | } | |
1484 | ||
1485 | m->dispatching_dbus_queue = false; | |
14228c0d MB |
1486 | |
1487 | if (m->send_reloading_done) { | |
1488 | m->send_reloading_done = false; | |
1489 | ||
60f067b4 | 1490 | bus_manager_send_reloading(m, false); |
14228c0d MB |
1491 | } |
1492 | ||
60f067b4 JS |
1493 | if (m->queued_message) |
1494 | bus_send_queued_message(m); | |
1495 | ||
663996b3 MS |
1496 | return n; |
1497 | } | |
1498 | ||
db2df898 | 1499 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, const char *buf, size_t n, FDSet *fds) { |
60f067b4 JS |
1500 | _cleanup_strv_free_ char **tags = NULL; |
1501 | ||
1502 | assert(m); | |
1503 | assert(u); | |
1504 | assert(buf); | |
1505 | assert(n > 0); | |
1506 | ||
1507 | tags = strv_split(buf, "\n\r"); | |
1508 | if (!tags) { | |
1509 | log_oom(); | |
1510 | return; | |
1511 | } | |
1512 | ||
60f067b4 | 1513 | if (UNIT_VTABLE(u)->notify_message) |
e735f4d4 | 1514 | UNIT_VTABLE(u)->notify_message(u, pid, tags, fds); |
e3bff60a MP |
1515 | else |
1516 | log_unit_debug(u, "Got notification message for unit. Ignoring."); | |
60f067b4 JS |
1517 | } |
1518 | ||
1519 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { | |
db2df898 | 1520 | _cleanup_fdset_free_ FDSet *fds = NULL; |
60f067b4 | 1521 | Manager *m = userdata; |
db2df898 MP |
1522 | |
1523 | char buf[NOTIFY_BUFFER_MAX+1]; | |
1524 | struct iovec iovec = { | |
1525 | .iov_base = buf, | |
1526 | .iov_len = sizeof(buf)-1, | |
1527 | }; | |
1528 | union { | |
1529 | struct cmsghdr cmsghdr; | |
1530 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
1531 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
1532 | } control = {}; | |
1533 | struct msghdr msghdr = { | |
1534 | .msg_iov = &iovec, | |
1535 | .msg_iovlen = 1, | |
1536 | .msg_control = &control, | |
1537 | .msg_controllen = sizeof(control), | |
1538 | }; | |
1539 | ||
1540 | struct cmsghdr *cmsg; | |
1541 | struct ucred *ucred = NULL; | |
1542 | bool found = false; | |
1543 | Unit *u1, *u2, *u3; | |
1544 | int r, *fd_array = NULL; | |
1545 | unsigned n_fds = 0; | |
663996b3 MS |
1546 | ssize_t n; |
1547 | ||
1548 | assert(m); | |
60f067b4 JS |
1549 | assert(m->notify_fd == fd); |
1550 | ||
1551 | if (revents != EPOLLIN) { | |
1552 | log_warning("Got unexpected poll event for notify fd."); | |
1553 | return 0; | |
1554 | } | |
663996b3 | 1555 | |
db2df898 MP |
1556 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1557 | if (n < 0) { | |
1558 | if (errno == EAGAIN || errno == EINTR) | |
1559 | return 0; | |
663996b3 | 1560 | |
db2df898 MP |
1561 | return -errno; |
1562 | } | |
663996b3 | 1563 | |
db2df898 MP |
1564 | CMSG_FOREACH(cmsg, &msghdr) { |
1565 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { | |
e735f4d4 | 1566 | |
db2df898 MP |
1567 | fd_array = (int*) CMSG_DATA(cmsg); |
1568 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
e735f4d4 | 1569 | |
db2df898 MP |
1570 | } else if (cmsg->cmsg_level == SOL_SOCKET && |
1571 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1572 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
e735f4d4 | 1573 | |
db2df898 | 1574 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
e735f4d4 | 1575 | } |
db2df898 | 1576 | } |
e735f4d4 | 1577 | |
db2df898 MP |
1578 | if (n_fds > 0) { |
1579 | assert(fd_array); | |
e735f4d4 | 1580 | |
db2df898 MP |
1581 | r = fdset_new_array(&fds, fd_array, n_fds); |
1582 | if (r < 0) { | |
1583 | close_many(fd_array, n_fds); | |
1584 | return log_oom(); | |
e735f4d4 | 1585 | } |
db2df898 | 1586 | } |
e735f4d4 | 1587 | |
db2df898 MP |
1588 | if (!ucred || ucred->pid <= 0) { |
1589 | log_warning("Received notify message without valid credentials. Ignoring."); | |
1590 | return 0; | |
1591 | } | |
663996b3 | 1592 | |
db2df898 MP |
1593 | if ((size_t) n >= sizeof(buf)) { |
1594 | log_warning("Received notify message exceeded maximum size. Ignoring."); | |
1595 | return 0; | |
1596 | } | |
663996b3 | 1597 | |
db2df898 | 1598 | buf[n] = 0; |
663996b3 | 1599 | |
db2df898 MP |
1600 | /* Notify every unit that might be interested, but try |
1601 | * to avoid notifying the same one multiple times. */ | |
1602 | u1 = manager_get_unit_by_pid_cgroup(m, ucred->pid); | |
1603 | if (u1) { | |
1604 | manager_invoke_notify_message(m, u1, ucred->pid, buf, n, fds); | |
1605 | found = true; | |
1606 | } | |
60f067b4 | 1607 | |
db2df898 MP |
1608 | u2 = hashmap_get(m->watch_pids1, PID_TO_PTR(ucred->pid)); |
1609 | if (u2 && u2 != u1) { | |
1610 | manager_invoke_notify_message(m, u2, ucred->pid, buf, n, fds); | |
1611 | found = true; | |
1612 | } | |
663996b3 | 1613 | |
db2df898 MP |
1614 | u3 = hashmap_get(m->watch_pids2, PID_TO_PTR(ucred->pid)); |
1615 | if (u3 && u3 != u2 && u3 != u1) { | |
1616 | manager_invoke_notify_message(m, u3, ucred->pid, buf, n, fds); | |
1617 | found = true; | |
1618 | } | |
60f067b4 | 1619 | |
db2df898 MP |
1620 | if (!found) |
1621 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
e735f4d4 | 1622 | |
db2df898 MP |
1623 | if (fdset_size(fds) > 0) |
1624 | log_warning("Got auxiliary fds with notification message, closing all."); | |
663996b3 MS |
1625 | |
1626 | return 0; | |
1627 | } | |
1628 | ||
db2df898 | 1629 | static void invoke_sigchld_event(Manager *m, Unit *u, const siginfo_t *si) { |
60f067b4 JS |
1630 | assert(m); |
1631 | assert(u); | |
1632 | assert(si); | |
1633 | ||
e3bff60a | 1634 | log_unit_debug(u, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); |
60f067b4 JS |
1635 | |
1636 | unit_unwatch_pid(u, si->si_pid); | |
1637 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1638 | } | |
1639 | ||
663996b3 MS |
1640 | static int manager_dispatch_sigchld(Manager *m) { |
1641 | assert(m); | |
1642 | ||
1643 | for (;;) { | |
1644 | siginfo_t si = {}; | |
663996b3 MS |
1645 | |
1646 | /* First we call waitd() for a PID and do not reap the | |
1647 | * zombie. That way we can still access /proc/$PID for | |
1648 | * it while it is a zombie. */ | |
1649 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
1650 | ||
1651 | if (errno == ECHILD) | |
1652 | break; | |
1653 | ||
1654 | if (errno == EINTR) | |
1655 | continue; | |
1656 | ||
1657 | return -errno; | |
1658 | } | |
1659 | ||
1660 | if (si.si_pid <= 0) | |
1661 | break; | |
1662 | ||
1663 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { | |
1664 | _cleanup_free_ char *name = NULL; | |
5eef597e | 1665 | Unit *u1, *u2, *u3; |
663996b3 MS |
1666 | |
1667 | get_process_comm(si.si_pid, &name); | |
663996b3 | 1668 | |
60f067b4 JS |
1669 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1670 | si.si_pid, strna(name), | |
1671 | sigchld_code_to_string(si.si_code), | |
1672 | si.si_status, | |
1673 | strna(si.si_code == CLD_EXITED | |
1674 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1675 | : signal_to_string(si.si_status))); | |
663996b3 | 1676 | |
60f067b4 JS |
1677 | /* And now figure out the unit this belongs |
1678 | * to, it might be multiple... */ | |
d9dfd233 | 1679 | u1 = manager_get_unit_by_pid_cgroup(m, si.si_pid); |
5eef597e MP |
1680 | if (u1) |
1681 | invoke_sigchld_event(m, u1, &si); | |
d9dfd233 | 1682 | u2 = hashmap_get(m->watch_pids1, PID_TO_PTR(si.si_pid)); |
5eef597e MP |
1683 | if (u2 && u2 != u1) |
1684 | invoke_sigchld_event(m, u2, &si); | |
d9dfd233 | 1685 | u3 = hashmap_get(m->watch_pids2, PID_TO_PTR(si.si_pid)); |
5eef597e MP |
1686 | if (u3 && u3 != u2 && u3 != u1) |
1687 | invoke_sigchld_event(m, u3, &si); | |
60f067b4 | 1688 | } |
663996b3 MS |
1689 | |
1690 | /* And now, we actually reap the zombie. */ | |
1691 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1692 | if (errno == EINTR) | |
1693 | continue; | |
1694 | ||
1695 | return -errno; | |
60f067b4 | 1696 | } |
663996b3 MS |
1697 | } |
1698 | ||
1699 | return 0; | |
1700 | } | |
1701 | ||
1702 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { | |
60f067b4 | 1703 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
663996b3 | 1704 | int r; |
663996b3 | 1705 | |
e3bff60a | 1706 | log_debug("Activating special unit %s", name); |
663996b3 | 1707 | |
db2df898 | 1708 | r = manager_add_job_by_name(m, JOB_START, name, mode, &error, NULL); |
663996b3 | 1709 | if (r < 0) |
e3bff60a | 1710 | log_error("Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
663996b3 MS |
1711 | |
1712 | return r; | |
1713 | } | |
1714 | ||
60f067b4 JS |
1715 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1716 | Manager *m = userdata; | |
663996b3 MS |
1717 | ssize_t n; |
1718 | struct signalfd_siginfo sfsi; | |
1719 | bool sigchld = false; | |
5fd56512 | 1720 | int r; |
663996b3 MS |
1721 | |
1722 | assert(m); | |
60f067b4 JS |
1723 | assert(m->signal_fd == fd); |
1724 | ||
1725 | if (revents != EPOLLIN) { | |
1726 | log_warning("Got unexpected events from signal file descriptor."); | |
1727 | return 0; | |
1728 | } | |
663996b3 MS |
1729 | |
1730 | for (;;) { | |
60f067b4 | 1731 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
663996b3 MS |
1732 | if (n != sizeof(sfsi)) { |
1733 | ||
1734 | if (n >= 0) | |
1735 | return -EIO; | |
1736 | ||
1737 | if (errno == EINTR || errno == EAGAIN) | |
1738 | break; | |
1739 | ||
1740 | return -errno; | |
1741 | } | |
1742 | ||
60f067b4 | 1743 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
e3bff60a | 1744 | (sfsi.ssi_signo == SIGTERM && m->running_as == MANAGER_USER) |
60f067b4 JS |
1745 | ? LOG_DEBUG : LOG_INFO, |
1746 | &sfsi); | |
663996b3 MS |
1747 | |
1748 | switch (sfsi.ssi_signo) { | |
1749 | ||
1750 | case SIGCHLD: | |
1751 | sigchld = true; | |
1752 | break; | |
1753 | ||
1754 | case SIGTERM: | |
e3bff60a | 1755 | if (m->running_as == MANAGER_SYSTEM) { |
663996b3 MS |
1756 | /* This is for compatibility with the |
1757 | * original sysvinit */ | |
1758 | m->exit_code = MANAGER_REEXECUTE; | |
1759 | break; | |
1760 | } | |
1761 | ||
1762 | /* Fall through */ | |
1763 | ||
1764 | case SIGINT: | |
e3bff60a | 1765 | if (m->running_as == MANAGER_SYSTEM) { |
e735f4d4 MP |
1766 | |
1767 | /* If the user presses C-A-D more than | |
1768 | * 7 times within 2s, we reboot | |
1769 | * immediately. */ | |
1770 | ||
1771 | if (ratelimit_test(&m->ctrl_alt_del_ratelimit)) | |
1772 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); | |
1773 | else { | |
1774 | log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); | |
1775 | status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); | |
1776 | m->exit_code = MANAGER_REBOOT; | |
1777 | } | |
1778 | ||
663996b3 MS |
1779 | break; |
1780 | } | |
1781 | ||
1782 | /* Run the exit target if there is one, if not, just exit. */ | |
1783 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { | |
1784 | m->exit_code = MANAGER_EXIT; | |
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | break; | |
1789 | ||
1790 | case SIGWINCH: | |
e3bff60a | 1791 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
1792 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
1793 | ||
1794 | /* This is a nop on non-init */ | |
1795 | break; | |
1796 | ||
1797 | case SIGPWR: | |
e3bff60a | 1798 | if (m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
1799 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
1800 | ||
1801 | /* This is a nop on non-init */ | |
1802 | break; | |
1803 | ||
1804 | case SIGUSR1: { | |
1805 | Unit *u; | |
1806 | ||
1807 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1808 | ||
1809 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1810 | log_info("Trying to reconnect to bus..."); | |
1811 | bus_init(m, true); | |
1812 | } | |
1813 | ||
1814 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1815 | log_info("Loading D-Bus service..."); | |
1816 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); | |
1817 | } | |
1818 | ||
1819 | break; | |
1820 | } | |
1821 | ||
1822 | case SIGUSR2: { | |
60f067b4 JS |
1823 | _cleanup_free_ char *dump = NULL; |
1824 | _cleanup_fclose_ FILE *f = NULL; | |
663996b3 MS |
1825 | size_t size; |
1826 | ||
60f067b4 JS |
1827 | f = open_memstream(&dump, &size); |
1828 | if (!f) { | |
5fd56512 | 1829 | log_warning_errno(errno, "Failed to allocate memory stream: %m"); |
663996b3 MS |
1830 | break; |
1831 | } | |
1832 | ||
1833 | manager_dump_units(m, f, "\t"); | |
1834 | manager_dump_jobs(m, f, "\t"); | |
1835 | ||
5fd56512 MP |
1836 | r = fflush_and_check(f); |
1837 | if (r < 0) { | |
1838 | log_warning_errno(r, "Failed to write status stream: %m"); | |
60f067b4 JS |
1839 | break; |
1840 | } | |
663996b3 | 1841 | |
60f067b4 | 1842 | log_dump(LOG_INFO, dump); |
663996b3 MS |
1843 | break; |
1844 | } | |
1845 | ||
1846 | case SIGHUP: | |
1847 | m->exit_code = MANAGER_RELOAD; | |
1848 | break; | |
1849 | ||
1850 | default: { | |
1851 | ||
1852 | /* Starting SIGRTMIN+0 */ | |
1853 | static const char * const target_table[] = { | |
1854 | [0] = SPECIAL_DEFAULT_TARGET, | |
1855 | [1] = SPECIAL_RESCUE_TARGET, | |
1856 | [2] = SPECIAL_EMERGENCY_TARGET, | |
1857 | [3] = SPECIAL_HALT_TARGET, | |
1858 | [4] = SPECIAL_POWEROFF_TARGET, | |
1859 | [5] = SPECIAL_REBOOT_TARGET, | |
1860 | [6] = SPECIAL_KEXEC_TARGET | |
1861 | }; | |
1862 | ||
1863 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1864 | static const ManagerExitCode code_table[] = { | |
1865 | [0] = MANAGER_HALT, | |
1866 | [1] = MANAGER_POWEROFF, | |
1867 | [2] = MANAGER_REBOOT, | |
1868 | [3] = MANAGER_KEXEC | |
1869 | }; | |
1870 | ||
1871 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
1872 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { | |
1873 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; | |
1874 | manager_start_target(m, target_table[idx], | |
1875 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
1876 | break; | |
1877 | } | |
1878 | ||
1879 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && | |
1880 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1881 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1882 | break; | |
1883 | } | |
1884 | ||
1885 | switch (sfsi.ssi_signo - SIGRTMIN) { | |
1886 | ||
1887 | case 20: | |
1888 | log_debug("Enabling showing of status."); | |
60f067b4 | 1889 | manager_set_show_status(m, SHOW_STATUS_YES); |
663996b3 MS |
1890 | break; |
1891 | ||
1892 | case 21: | |
1893 | log_debug("Disabling showing of status."); | |
60f067b4 | 1894 | manager_set_show_status(m, SHOW_STATUS_NO); |
663996b3 MS |
1895 | break; |
1896 | ||
1897 | case 22: | |
1898 | log_set_max_level(LOG_DEBUG); | |
1899 | log_notice("Setting log level to debug."); | |
1900 | break; | |
1901 | ||
1902 | case 23: | |
1903 | log_set_max_level(LOG_INFO); | |
1904 | log_notice("Setting log level to info."); | |
1905 | break; | |
1906 | ||
1907 | case 24: | |
e3bff60a | 1908 | if (m->running_as == MANAGER_USER) { |
663996b3 MS |
1909 | m->exit_code = MANAGER_EXIT; |
1910 | return 0; | |
1911 | } | |
1912 | ||
1913 | /* This is a nop on init */ | |
1914 | break; | |
1915 | ||
1916 | case 26: | |
5eef597e | 1917 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ |
663996b3 MS |
1918 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
1919 | log_notice("Setting log target to journal-or-kmsg."); | |
1920 | break; | |
1921 | ||
1922 | case 27: | |
1923 | log_set_target(LOG_TARGET_CONSOLE); | |
1924 | log_notice("Setting log target to console."); | |
1925 | break; | |
1926 | ||
1927 | case 28: | |
1928 | log_set_target(LOG_TARGET_KMSG); | |
1929 | log_notice("Setting log target to kmsg."); | |
1930 | break; | |
1931 | ||
663996b3 MS |
1932 | default: |
1933 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); | |
1934 | } | |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | if (sigchld) | |
60f067b4 | 1940 | manager_dispatch_sigchld(m); |
663996b3 MS |
1941 | |
1942 | return 0; | |
1943 | } | |
1944 | ||
60f067b4 JS |
1945 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1946 | Manager *m = userdata; | |
1947 | Iterator i; | |
1948 | Unit *u; | |
663996b3 MS |
1949 | |
1950 | assert(m); | |
60f067b4 | 1951 | assert(m->time_change_fd == fd); |
663996b3 | 1952 | |
60f067b4 | 1953 | log_struct(LOG_INFO, |
f47781d8 MP |
1954 | LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), |
1955 | LOG_MESSAGE("Time has been changed"), | |
60f067b4 | 1956 | NULL); |
663996b3 | 1957 | |
60f067b4 JS |
1958 | /* Restart the watch */ |
1959 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
1960 | m->time_change_fd = safe_close(m->time_change_fd); | |
663996b3 | 1961 | |
60f067b4 | 1962 | manager_setup_time_change(m); |
663996b3 | 1963 | |
60f067b4 JS |
1964 | HASHMAP_FOREACH(u, m->units, i) |
1965 | if (UNIT_VTABLE(u)->time_change) | |
1966 | UNIT_VTABLE(u)->time_change(u); | |
663996b3 | 1967 | |
60f067b4 JS |
1968 | return 0; |
1969 | } | |
663996b3 | 1970 | |
60f067b4 JS |
1971 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1972 | Manager *m = userdata; | |
663996b3 | 1973 | |
60f067b4 JS |
1974 | assert(m); |
1975 | assert(m->idle_pipe[2] == fd); | |
663996b3 | 1976 | |
60f067b4 | 1977 | m->no_console_output = m->n_on_console > 0; |
663996b3 | 1978 | |
60f067b4 | 1979 | manager_close_idle_pipe(m); |
663996b3 | 1980 | |
60f067b4 JS |
1981 | return 0; |
1982 | } | |
663996b3 | 1983 | |
60f067b4 JS |
1984 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1985 | Manager *m = userdata; | |
1986 | int r; | |
1987 | uint64_t next; | |
663996b3 | 1988 | |
60f067b4 JS |
1989 | assert(m); |
1990 | assert(source); | |
14228c0d | 1991 | |
60f067b4 | 1992 | manager_print_jobs_in_progress(m); |
14228c0d | 1993 | |
60f067b4 JS |
1994 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; |
1995 | r = sd_event_source_set_time(source, next); | |
1996 | if (r < 0) | |
1997 | return r; | |
663996b3 | 1998 | |
60f067b4 | 1999 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); |
663996b3 MS |
2000 | } |
2001 | ||
2002 | int manager_loop(Manager *m) { | |
2003 | int r; | |
2004 | ||
2005 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); | |
2006 | ||
2007 | assert(m); | |
60f067b4 | 2008 | m->exit_code = MANAGER_OK; |
663996b3 MS |
2009 | |
2010 | /* Release the path cache */ | |
db2df898 | 2011 | m->unit_path_cache = set_free_free(m->unit_path_cache); |
663996b3 MS |
2012 | |
2013 | manager_check_finished(m); | |
2014 | ||
2015 | /* There might still be some zombies hanging around from | |
60f067b4 | 2016 | * before we were exec()'ed. Let's reap them. */ |
663996b3 MS |
2017 | r = manager_dispatch_sigchld(m); |
2018 | if (r < 0) | |
2019 | return r; | |
2020 | ||
60f067b4 JS |
2021 | while (m->exit_code == MANAGER_OK) { |
2022 | usec_t wait_usec; | |
663996b3 | 2023 | |
e3bff60a | 2024 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) |
663996b3 MS |
2025 | watchdog_ping(); |
2026 | ||
2027 | if (!ratelimit_test(&rl)) { | |
2028 | /* Yay, something is going seriously wrong, pause a little */ | |
2029 | log_warning("Looping too fast. Throttling execution a little."); | |
2030 | sleep(1); | |
663996b3 MS |
2031 | } |
2032 | ||
2033 | if (manager_dispatch_load_queue(m) > 0) | |
2034 | continue; | |
2035 | ||
14228c0d | 2036 | if (manager_dispatch_gc_queue(m) > 0) |
663996b3 MS |
2037 | continue; |
2038 | ||
14228c0d | 2039 | if (manager_dispatch_cleanup_queue(m) > 0) |
663996b3 MS |
2040 | continue; |
2041 | ||
14228c0d | 2042 | if (manager_dispatch_cgroup_queue(m) > 0) |
663996b3 MS |
2043 | continue; |
2044 | ||
663996b3 MS |
2045 | if (manager_dispatch_dbus_queue(m) > 0) |
2046 | continue; | |
2047 | ||
663996b3 | 2048 | /* Sleep for half the watchdog time */ |
e3bff60a | 2049 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) { |
60f067b4 JS |
2050 | wait_usec = m->runtime_watchdog / 2; |
2051 | if (wait_usec <= 0) | |
2052 | wait_usec = 1; | |
663996b3 | 2053 | } else |
5eef597e | 2054 | wait_usec = USEC_INFINITY; |
663996b3 | 2055 | |
60f067b4 | 2056 | r = sd_event_run(m->event, wait_usec); |
f47781d8 MP |
2057 | if (r < 0) |
2058 | return log_error_errno(r, "Failed to run event loop: %m"); | |
663996b3 MS |
2059 | } |
2060 | ||
2061 | return m->exit_code; | |
2062 | } | |
2063 | ||
60f067b4 | 2064 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
14228c0d | 2065 | _cleanup_free_ char *n = NULL; |
663996b3 MS |
2066 | Unit *u; |
2067 | int r; | |
2068 | ||
2069 | assert(m); | |
2070 | assert(s); | |
2071 | assert(_u); | |
2072 | ||
14228c0d MB |
2073 | r = unit_name_from_dbus_path(s, &n); |
2074 | if (r < 0) | |
2075 | return r; | |
663996b3 MS |
2076 | |
2077 | r = manager_load_unit(m, n, NULL, e, &u); | |
663996b3 MS |
2078 | if (r < 0) |
2079 | return r; | |
2080 | ||
2081 | *_u = u; | |
2082 | ||
2083 | return 0; | |
2084 | } | |
2085 | ||
2086 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
60f067b4 | 2087 | const char *p; |
663996b3 | 2088 | unsigned id; |
60f067b4 | 2089 | Job *j; |
663996b3 MS |
2090 | int r; |
2091 | ||
2092 | assert(m); | |
2093 | assert(s); | |
2094 | assert(_j); | |
2095 | ||
60f067b4 JS |
2096 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
2097 | if (!p) | |
663996b3 MS |
2098 | return -EINVAL; |
2099 | ||
60f067b4 | 2100 | r = safe_atou(p, &id); |
663996b3 MS |
2101 | if (r < 0) |
2102 | return r; | |
2103 | ||
2104 | j = manager_get_job(m, id); | |
2105 | if (!j) | |
2106 | return -ENOENT; | |
2107 | ||
2108 | *_j = j; | |
2109 | ||
2110 | return 0; | |
2111 | } | |
2112 | ||
2113 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { | |
2114 | ||
2115 | #ifdef HAVE_AUDIT | |
60f067b4 | 2116 | _cleanup_free_ char *p = NULL; |
f47781d8 | 2117 | const char *msg; |
e3bff60a | 2118 | int audit_fd, r; |
663996b3 | 2119 | |
db2df898 MP |
2120 | if (m->running_as != MANAGER_SYSTEM) |
2121 | return; | |
2122 | ||
663996b3 MS |
2123 | audit_fd = get_audit_fd(); |
2124 | if (audit_fd < 0) | |
2125 | return; | |
2126 | ||
2127 | /* Don't generate audit events if the service was already | |
2128 | * started and we're just deserializing */ | |
2129 | if (m->n_reloading > 0) | |
2130 | return; | |
2131 | ||
663996b3 MS |
2132 | if (u->type != UNIT_SERVICE) |
2133 | return; | |
2134 | ||
e3bff60a MP |
2135 | r = unit_name_to_prefix_and_instance(u->id, &p); |
2136 | if (r < 0) { | |
2137 | log_error_errno(r, "Failed to extract prefix and instance of unit name: %m"); | |
663996b3 MS |
2138 | return; |
2139 | } | |
2140 | ||
e735f4d4 | 2141 | msg = strjoina("unit=", p); |
f47781d8 MP |
2142 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { |
2143 | if (errno == EPERM) | |
663996b3 MS |
2144 | /* We aren't allowed to send audit messages? |
2145 | * Then let's not retry again. */ | |
2146 | close_audit_fd(); | |
f47781d8 MP |
2147 | else |
2148 | log_warning_errno(errno, "Failed to send audit message: %m"); | |
663996b3 | 2149 | } |
663996b3 MS |
2150 | #endif |
2151 | ||
2152 | } | |
2153 | ||
2154 | void manager_send_unit_plymouth(Manager *m, Unit *u) { | |
5eef597e | 2155 | union sockaddr_union sa = PLYMOUTH_SOCKET; |
60f067b4 | 2156 | |
663996b3 | 2157 | int n = 0; |
60f067b4 JS |
2158 | _cleanup_free_ char *message = NULL; |
2159 | _cleanup_close_ int fd = -1; | |
663996b3 MS |
2160 | |
2161 | /* Don't generate plymouth events if the service was already | |
2162 | * started and we're just deserializing */ | |
2163 | if (m->n_reloading > 0) | |
2164 | return; | |
2165 | ||
e3bff60a | 2166 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2167 | return; |
2168 | ||
6300502b | 2169 | if (detect_container() > 0) |
60f067b4 JS |
2170 | return; |
2171 | ||
663996b3 MS |
2172 | if (u->type != UNIT_SERVICE && |
2173 | u->type != UNIT_MOUNT && | |
2174 | u->type != UNIT_SWAP) | |
2175 | return; | |
2176 | ||
2177 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
2178 | * message then wait for plymouth */ | |
2179 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
2180 | if (fd < 0) { | |
f47781d8 | 2181 | log_error_errno(errno, "socket() failed: %m"); |
663996b3 MS |
2182 | return; |
2183 | } | |
2184 | ||
663996b3 MS |
2185 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
2186 | ||
60f067b4 | 2187 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
f47781d8 | 2188 | log_error_errno(errno, "connect() failed: %m"); |
60f067b4 | 2189 | return; |
663996b3 MS |
2190 | } |
2191 | ||
2192 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { | |
2193 | log_oom(); | |
60f067b4 | 2194 | return; |
663996b3 MS |
2195 | } |
2196 | ||
2197 | errno = 0; | |
60f067b4 JS |
2198 | if (write(fd, message, n + 1) != n + 1) |
2199 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
f47781d8 | 2200 | log_error_errno(errno, "Failed to write Plymouth message: %m"); |
663996b3 MS |
2201 | } |
2202 | ||
663996b3 | 2203 | int manager_open_serialization(Manager *m, FILE **_f) { |
60f067b4 JS |
2204 | const char *path; |
2205 | int fd = -1; | |
663996b3 MS |
2206 | FILE *f; |
2207 | ||
2208 | assert(_f); | |
2209 | ||
e3bff60a | 2210 | path = m->running_as == MANAGER_SYSTEM ? "/run/systemd" : "/tmp"; |
60f067b4 JS |
2211 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); |
2212 | if (fd < 0) | |
663996b3 | 2213 | return -errno; |
663996b3 MS |
2214 | |
2215 | log_debug("Serializing state to %s", path); | |
663996b3 MS |
2216 | |
2217 | f = fdopen(fd, "w+"); | |
60f067b4 JS |
2218 | if (!f) { |
2219 | safe_close(fd); | |
663996b3 | 2220 | return -errno; |
60f067b4 | 2221 | } |
663996b3 MS |
2222 | |
2223 | *_f = f; | |
2224 | ||
2225 | return 0; | |
2226 | } | |
2227 | ||
2228 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { | |
2229 | Iterator i; | |
2230 | Unit *u; | |
2231 | const char *t; | |
2232 | char **e; | |
2233 | int r; | |
2234 | ||
2235 | assert(m); | |
2236 | assert(f); | |
2237 | assert(fds); | |
2238 | ||
2239 | m->n_reloading ++; | |
2240 | ||
e735f4d4 | 2241 | fprintf(f, "current-job-id=%"PRIu32"\n", m->current_job_id); |
663996b3 MS |
2242 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); |
2243 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); | |
2244 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
2245 | ||
2246 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); | |
663996b3 | 2247 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
60f067b4 | 2248 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
663996b3 MS |
2249 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
2250 | ||
2251 | if (!in_initrd()) { | |
2252 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); | |
2253 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); | |
60f067b4 JS |
2254 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2255 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2256 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2257 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2258 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2259 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
663996b3 MS |
2260 | } |
2261 | ||
2262 | if (!switching_root) { | |
2263 | STRV_FOREACH(e, m->environment) { | |
2264 | _cleanup_free_ char *ce; | |
2265 | ||
2266 | ce = cescape(*e); | |
60f067b4 JS |
2267 | if (!ce) |
2268 | return -ENOMEM; | |
2269 | ||
2270 | fprintf(f, "env=%s\n", *e); | |
663996b3 MS |
2271 | } |
2272 | } | |
2273 | ||
60f067b4 JS |
2274 | if (m->notify_fd >= 0) { |
2275 | int copy; | |
2276 | ||
2277 | copy = fdset_put_dup(fds, m->notify_fd); | |
2278 | if (copy < 0) | |
2279 | return copy; | |
2280 | ||
2281 | fprintf(f, "notify-fd=%i\n", copy); | |
2282 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2283 | } | |
2284 | ||
2285 | if (m->kdbus_fd >= 0) { | |
2286 | int copy; | |
2287 | ||
2288 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2289 | if (copy < 0) | |
2290 | return copy; | |
2291 | ||
2292 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2293 | } | |
2294 | ||
2295 | bus_track_serialize(m->subscribed, f); | |
14228c0d | 2296 | |
663996b3 MS |
2297 | fputc('\n', f); |
2298 | ||
2299 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { | |
2300 | if (u->id != t) | |
2301 | continue; | |
2302 | ||
663996b3 MS |
2303 | /* Start marker */ |
2304 | fputs(u->id, f); | |
2305 | fputc('\n', f); | |
2306 | ||
14228c0d MB |
2307 | r = unit_serialize(u, f, fds, !switching_root); |
2308 | if (r < 0) { | |
663996b3 MS |
2309 | m->n_reloading --; |
2310 | return r; | |
2311 | } | |
2312 | } | |
2313 | ||
2314 | assert(m->n_reloading > 0); | |
2315 | m->n_reloading --; | |
2316 | ||
2317 | if (ferror(f)) | |
2318 | return -EIO; | |
2319 | ||
2320 | r = bus_fdset_add_all(m, fds); | |
2321 | if (r < 0) | |
2322 | return r; | |
2323 | ||
2324 | return 0; | |
2325 | } | |
2326 | ||
2327 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2328 | int r = 0; | |
2329 | ||
2330 | assert(m); | |
2331 | assert(f); | |
2332 | ||
2333 | log_debug("Deserializing state..."); | |
2334 | ||
2335 | m->n_reloading ++; | |
2336 | ||
2337 | for (;;) { | |
2338 | char line[LINE_MAX], *l; | |
2339 | ||
2340 | if (!fgets(line, sizeof(line), f)) { | |
2341 | if (feof(f)) | |
2342 | r = 0; | |
2343 | else | |
2344 | r = -errno; | |
2345 | ||
2346 | goto finish; | |
2347 | } | |
2348 | ||
2349 | char_array_0(line); | |
2350 | l = strstrip(line); | |
2351 | ||
2352 | if (l[0] == 0) | |
2353 | break; | |
2354 | ||
2355 | if (startswith(l, "current-job-id=")) { | |
2356 | uint32_t id; | |
2357 | ||
2358 | if (safe_atou32(l+15, &id) < 0) | |
f47781d8 | 2359 | log_debug("Failed to parse current job id value %s", l+15); |
663996b3 MS |
2360 | else |
2361 | m->current_job_id = MAX(m->current_job_id, id); | |
60f067b4 | 2362 | |
663996b3 MS |
2363 | } else if (startswith(l, "n-installed-jobs=")) { |
2364 | uint32_t n; | |
2365 | ||
2366 | if (safe_atou32(l+17, &n) < 0) | |
f47781d8 | 2367 | log_debug("Failed to parse installed jobs counter %s", l+17); |
663996b3 MS |
2368 | else |
2369 | m->n_installed_jobs += n; | |
60f067b4 | 2370 | |
663996b3 MS |
2371 | } else if (startswith(l, "n-failed-jobs=")) { |
2372 | uint32_t n; | |
2373 | ||
2374 | if (safe_atou32(l+14, &n) < 0) | |
f47781d8 | 2375 | log_debug("Failed to parse failed jobs counter %s", l+14); |
663996b3 MS |
2376 | else |
2377 | m->n_failed_jobs += n; | |
60f067b4 | 2378 | |
663996b3 MS |
2379 | } else if (startswith(l, "taint-usr=")) { |
2380 | int b; | |
2381 | ||
60f067b4 JS |
2382 | b = parse_boolean(l+10); |
2383 | if (b < 0) | |
f47781d8 | 2384 | log_debug("Failed to parse taint /usr flag %s", l+10); |
663996b3 MS |
2385 | else |
2386 | m->taint_usr = m->taint_usr || b; | |
60f067b4 | 2387 | |
663996b3 MS |
2388 | } else if (startswith(l, "firmware-timestamp=")) |
2389 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2390 | else if (startswith(l, "loader-timestamp=")) | |
2391 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2392 | else if (startswith(l, "kernel-timestamp=")) | |
2393 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2394 | else if (startswith(l, "initrd-timestamp=")) | |
2395 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); | |
2396 | else if (startswith(l, "userspace-timestamp=")) | |
2397 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
2398 | else if (startswith(l, "finish-timestamp=")) | |
2399 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); | |
60f067b4 JS |
2400 | else if (startswith(l, "security-start-timestamp=")) |
2401 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2402 | else if (startswith(l, "security-finish-timestamp=")) | |
2403 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2404 | else if (startswith(l, "generators-start-timestamp=")) | |
2405 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2406 | else if (startswith(l, "generators-finish-timestamp=")) | |
2407 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2408 | else if (startswith(l, "units-load-start-timestamp=")) | |
2409 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2410 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2411 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
663996b3 MS |
2412 | else if (startswith(l, "env=")) { |
2413 | _cleanup_free_ char *uce = NULL; | |
2414 | char **e; | |
2415 | ||
e3bff60a MP |
2416 | r = cunescape(l + 4, UNESCAPE_RELAX, &uce); |
2417 | if (r < 0) | |
663996b3 | 2418 | goto finish; |
663996b3 MS |
2419 | |
2420 | e = strv_env_set(m->environment, uce); | |
2421 | if (!e) { | |
2422 | r = -ENOMEM; | |
2423 | goto finish; | |
2424 | } | |
2425 | ||
2426 | strv_free(m->environment); | |
2427 | m->environment = e; | |
60f067b4 JS |
2428 | |
2429 | } else if (startswith(l, "notify-fd=")) { | |
2430 | int fd; | |
2431 | ||
2432 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f47781d8 | 2433 | log_debug("Failed to parse notify fd: %s", l + 10); |
60f067b4 JS |
2434 | else { |
2435 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
2436 | safe_close(m->notify_fd); | |
2437 | m->notify_fd = fdset_remove(fds, fd); | |
2438 | } | |
2439 | ||
2440 | } else if (startswith(l, "notify-socket=")) { | |
2441 | char *n; | |
2442 | ||
2443 | n = strdup(l+14); | |
2444 | if (!n) { | |
2445 | r = -ENOMEM; | |
2446 | goto finish; | |
2447 | } | |
2448 | ||
2449 | free(m->notify_socket); | |
2450 | m->notify_socket = n; | |
2451 | ||
2452 | } else if (startswith(l, "kdbus-fd=")) { | |
2453 | int fd; | |
2454 | ||
2455 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f47781d8 | 2456 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
60f067b4 JS |
2457 | else { |
2458 | safe_close(m->kdbus_fd); | |
2459 | m->kdbus_fd = fdset_remove(fds, fd); | |
2460 | } | |
2461 | ||
f47781d8 MP |
2462 | } else { |
2463 | int k; | |
2464 | ||
2465 | k = bus_track_deserialize_item(&m->deserialized_subscribed, l); | |
2466 | if (k < 0) | |
2467 | log_debug_errno(k, "Failed to deserialize bus tracker object: %m"); | |
2468 | else if (k == 0) | |
2469 | log_debug("Unknown serialization item '%s'", l); | |
2470 | } | |
663996b3 MS |
2471 | } |
2472 | ||
2473 | for (;;) { | |
2474 | Unit *u; | |
2475 | char name[UNIT_NAME_MAX+2]; | |
2476 | ||
2477 | /* Start marker */ | |
2478 | if (!fgets(name, sizeof(name), f)) { | |
2479 | if (feof(f)) | |
2480 | r = 0; | |
2481 | else | |
2482 | r = -errno; | |
2483 | ||
2484 | goto finish; | |
2485 | } | |
2486 | ||
2487 | char_array_0(name); | |
2488 | ||
2489 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); | |
2490 | if (r < 0) | |
2491 | goto finish; | |
2492 | ||
2493 | r = unit_deserialize(u, f, fds); | |
2494 | if (r < 0) | |
2495 | goto finish; | |
2496 | } | |
2497 | ||
2498 | finish: | |
60f067b4 | 2499 | if (ferror(f)) |
663996b3 | 2500 | r = -EIO; |
663996b3 MS |
2501 | |
2502 | assert(m->n_reloading > 0); | |
2503 | m->n_reloading --; | |
2504 | ||
2505 | return r; | |
2506 | } | |
2507 | ||
663996b3 MS |
2508 | int manager_reload(Manager *m) { |
2509 | int r, q; | |
60f067b4 JS |
2510 | _cleanup_fclose_ FILE *f = NULL; |
2511 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
663996b3 MS |
2512 | |
2513 | assert(m); | |
2514 | ||
2515 | r = manager_open_serialization(m, &f); | |
2516 | if (r < 0) | |
2517 | return r; | |
2518 | ||
2519 | m->n_reloading ++; | |
60f067b4 | 2520 | bus_manager_send_reloading(m, true); |
663996b3 MS |
2521 | |
2522 | fds = fdset_new(); | |
2523 | if (!fds) { | |
2524 | m->n_reloading --; | |
60f067b4 | 2525 | return -ENOMEM; |
663996b3 MS |
2526 | } |
2527 | ||
2528 | r = manager_serialize(m, f, fds, false); | |
2529 | if (r < 0) { | |
2530 | m->n_reloading --; | |
60f067b4 | 2531 | return r; |
663996b3 MS |
2532 | } |
2533 | ||
2534 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
2535 | m->n_reloading --; | |
60f067b4 | 2536 | return -errno; |
663996b3 MS |
2537 | } |
2538 | ||
2539 | /* From here on there is no way back. */ | |
2540 | manager_clear_jobs_and_units(m); | |
2541 | manager_undo_generators(m); | |
2542 | lookup_paths_free(&m->lookup_paths); | |
2543 | ||
2544 | /* Find new unit paths */ | |
e735f4d4 MP |
2545 | q = manager_run_generators(m); |
2546 | if (q < 0 && r >= 0) | |
2547 | r = q; | |
663996b3 MS |
2548 | |
2549 | q = lookup_paths_init( | |
2550 | &m->lookup_paths, m->running_as, true, | |
60f067b4 | 2551 | NULL, |
663996b3 MS |
2552 | m->generator_unit_path, |
2553 | m->generator_unit_path_early, | |
2554 | m->generator_unit_path_late); | |
e735f4d4 | 2555 | if (q < 0 && r >= 0) |
663996b3 MS |
2556 | r = q; |
2557 | ||
2558 | manager_build_unit_path_cache(m); | |
2559 | ||
2560 | /* First, enumerate what we can from all config files */ | |
db2df898 | 2561 | manager_enumerate(m); |
663996b3 MS |
2562 | |
2563 | /* Second, deserialize our stored data */ | |
2564 | q = manager_deserialize(m, f, fds); | |
e735f4d4 | 2565 | if (q < 0 && r >= 0) |
663996b3 MS |
2566 | r = q; |
2567 | ||
2568 | fclose(f); | |
2569 | f = NULL; | |
2570 | ||
60f067b4 JS |
2571 | /* Re-register notify_fd as event source */ |
2572 | q = manager_setup_notify(m); | |
e735f4d4 | 2573 | if (q < 0 && r >= 0) |
60f067b4 JS |
2574 | r = q; |
2575 | ||
663996b3 | 2576 | /* Third, fire things up! */ |
e3bff60a | 2577 | manager_coldplug(m); |
663996b3 MS |
2578 | |
2579 | assert(m->n_reloading > 0); | |
2580 | m->n_reloading--; | |
2581 | ||
14228c0d MB |
2582 | m->send_reloading_done = true; |
2583 | ||
663996b3 MS |
2584 | return r; |
2585 | } | |
2586 | ||
663996b3 MS |
2587 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2588 | assert(m); | |
2589 | ||
2590 | return m->n_reloading != 0; | |
2591 | } | |
2592 | ||
2593 | void manager_reset_failed(Manager *m) { | |
2594 | Unit *u; | |
2595 | Iterator i; | |
2596 | ||
2597 | assert(m); | |
2598 | ||
2599 | HASHMAP_FOREACH(u, m->units, i) | |
2600 | unit_reset_failed(u); | |
2601 | } | |
2602 | ||
2603 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { | |
2604 | Unit *u; | |
2605 | ||
2606 | assert(m); | |
2607 | assert(name); | |
2608 | ||
2609 | /* Returns true if the unit is inactive or going down */ | |
2610 | u = manager_get_unit(m, name); | |
2611 | if (!u) | |
2612 | return true; | |
2613 | ||
2614 | return unit_inactive_or_pending(u); | |
2615 | } | |
2616 | ||
f47781d8 | 2617 | static void manager_notify_finished(Manager *m) { |
663996b3 MS |
2618 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
2619 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; | |
60f067b4 | 2620 | |
f47781d8 | 2621 | if (m->test_run) |
663996b3 MS |
2622 | return; |
2623 | ||
6300502b | 2624 | if (m->running_as == MANAGER_SYSTEM && detect_container() <= 0) { |
663996b3 MS |
2625 | |
2626 | /* Note that m->kernel_usec.monotonic is always at 0, | |
2627 | * and m->firmware_usec.monotonic and | |
2628 | * m->loader_usec.monotonic should be considered | |
2629 | * negative values. */ | |
2630 | ||
2631 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; | |
2632 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2633 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2634 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; | |
2635 | ||
2636 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { | |
2637 | ||
2638 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2639 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
2640 | ||
5eef597e | 2641 | log_struct(LOG_INFO, |
f47781d8 | 2642 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e MP |
2643 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2644 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2645 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
f47781d8 MP |
2646 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2647 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2648 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2649 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2650 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
5eef597e | 2651 | NULL); |
663996b3 MS |
2652 | } else { |
2653 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
2654 | initrd_usec = 0; | |
2655 | ||
663996b3 | 2656 | log_struct(LOG_INFO, |
f47781d8 | 2657 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e | 2658 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
60f067b4 | 2659 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
f47781d8 MP |
2660 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.", |
2661 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2662 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2663 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
663996b3 | 2664 | NULL); |
5eef597e MP |
2665 | } |
2666 | } else { | |
2667 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; | |
2668 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2669 | ||
2670 | log_struct(LOG_INFO, | |
f47781d8 | 2671 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
5eef597e | 2672 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
f47781d8 MP |
2673 | LOG_MESSAGE("Startup finished in %s.", |
2674 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
5eef597e | 2675 | NULL); |
663996b3 MS |
2676 | } |
2677 | ||
60f067b4 | 2678 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
663996b3 MS |
2679 | |
2680 | sd_notifyf(false, | |
5eef597e MP |
2681 | "READY=1\n" |
2682 | "STATUS=Startup finished in %s.", | |
663996b3 MS |
2683 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
2684 | } | |
2685 | ||
f47781d8 | 2686 | void manager_check_finished(Manager *m) { |
f47781d8 MP |
2687 | assert(m); |
2688 | ||
e3bff60a MP |
2689 | if (m->n_reloading > 0) |
2690 | return; | |
2691 | ||
2692 | /* Verify that we are actually running currently. Initially | |
2693 | * the exit code is set to invalid, and during operation it is | |
2694 | * then set to MANAGER_OK */ | |
2695 | if (m->exit_code != MANAGER_OK) | |
2696 | return; | |
2697 | ||
f47781d8 | 2698 | if (hashmap_size(m->jobs) > 0) { |
f47781d8 | 2699 | if (m->jobs_in_progress_event_source) |
e3bff60a | 2700 | /* Ignore any failure, this is only for feedback */ |
6300502b | 2701 | (void) sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); |
f47781d8 MP |
2702 | |
2703 | return; | |
2704 | } | |
2705 | ||
2706 | manager_flip_auto_status(m, false); | |
2707 | ||
2708 | /* Notify Type=idle units that we are done now */ | |
f47781d8 MP |
2709 | manager_close_idle_pipe(m); |
2710 | ||
2711 | /* Turn off confirm spawn now */ | |
2712 | m->confirm_spawn = false; | |
2713 | ||
2714 | /* No need to update ask password status when we're going non-interactive */ | |
2715 | manager_close_ask_password(m); | |
2716 | ||
2717 | /* This is no longer the first boot */ | |
2718 | manager_set_first_boot(m, false); | |
2719 | ||
2720 | if (dual_timestamp_is_set(&m->finish_timestamp)) | |
2721 | return; | |
2722 | ||
2723 | dual_timestamp_get(&m->finish_timestamp); | |
2724 | ||
2725 | manager_notify_finished(m); | |
2726 | ||
6300502b | 2727 | manager_invalidate_startup_units(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)) { | |
db2df898 | 2778 | log_error_errno(errno, "Failed to create generator directory %s: %m", p); |
663996b3 MS |
2779 | free(p); |
2780 | return -errno; | |
2781 | } | |
2782 | } | |
2783 | ||
2784 | *generator = p; | |
2785 | return 0; | |
2786 | } | |
2787 | ||
2788 | static void trim_generator_dir(Manager *m, char **generator) { | |
2789 | assert(m); | |
2790 | assert(generator); | |
2791 | ||
2792 | if (!*generator) | |
2793 | return; | |
2794 | ||
6300502b MP |
2795 | if (rmdir(*generator) >= 0) |
2796 | *generator = mfree(*generator); | |
663996b3 MS |
2797 | |
2798 | return; | |
2799 | } | |
2800 | ||
e735f4d4 | 2801 | static int manager_run_generators(Manager *m) { |
e3bff60a | 2802 | _cleanup_strv_free_ char **paths = NULL; |
663996b3 | 2803 | const char *argv[5]; |
e735f4d4 | 2804 | char **path; |
663996b3 MS |
2805 | int r; |
2806 | ||
2807 | assert(m); | |
2808 | ||
5eef597e | 2809 | if (m->test_run) |
e735f4d4 | 2810 | return 0; |
663996b3 | 2811 | |
e735f4d4 MP |
2812 | paths = generator_paths(m->running_as); |
2813 | if (!paths) | |
2814 | return log_oom(); | |
2815 | ||
2816 | /* Optimize by skipping the whole process by not creating output directories | |
2817 | * if no generators are found. */ | |
2818 | STRV_FOREACH(path, paths) { | |
2819 | r = access(*path, F_OK); | |
2820 | if (r == 0) | |
2821 | goto found; | |
2822 | if (errno != ENOENT) | |
2823 | log_warning_errno(errno, "Failed to open generator directory %s: %m", *path); | |
663996b3 | 2824 | } |
e735f4d4 | 2825 | return 0; |
663996b3 | 2826 | |
e735f4d4 | 2827 | found: |
663996b3 MS |
2828 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2829 | if (r < 0) | |
2830 | goto finish; | |
2831 | ||
2832 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); | |
2833 | if (r < 0) | |
2834 | goto finish; | |
2835 | ||
2836 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); | |
2837 | if (r < 0) | |
2838 | goto finish; | |
2839 | ||
2840 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ | |
2841 | argv[1] = m->generator_unit_path; | |
2842 | argv[2] = m->generator_unit_path_early; | |
2843 | argv[3] = m->generator_unit_path_late; | |
2844 | argv[4] = NULL; | |
2845 | ||
60f067b4 | 2846 | RUN_WITH_UMASK(0022) |
e735f4d4 | 2847 | execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, (char**) argv); |
663996b3 | 2848 | |
60f067b4 | 2849 | finish: |
663996b3 MS |
2850 | trim_generator_dir(m, &m->generator_unit_path); |
2851 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2852 | trim_generator_dir(m, &m->generator_unit_path_late); | |
e735f4d4 | 2853 | return r; |
663996b3 MS |
2854 | } |
2855 | ||
2856 | static void remove_generator_dir(Manager *m, char **generator) { | |
2857 | assert(m); | |
2858 | assert(generator); | |
2859 | ||
2860 | if (!*generator) | |
2861 | return; | |
2862 | ||
2863 | strv_remove(m->lookup_paths.unit_path, *generator); | |
e3bff60a | 2864 | (void) rm_rf(*generator, REMOVE_ROOT); |
663996b3 | 2865 | |
6300502b | 2866 | *generator = mfree(*generator); |
663996b3 MS |
2867 | } |
2868 | ||
e735f4d4 | 2869 | static void manager_undo_generators(Manager *m) { |
663996b3 MS |
2870 | assert(m); |
2871 | ||
2872 | remove_generator_dir(m, &m->generator_unit_path); | |
2873 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2874 | remove_generator_dir(m, &m->generator_unit_path_late); | |
2875 | } | |
2876 | ||
60f067b4 JS |
2877 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2878 | char **a = NULL, **b = NULL, **l; | |
663996b3 MS |
2879 | assert(m); |
2880 | ||
60f067b4 | 2881 | l = m->environment; |
663996b3 | 2882 | |
60f067b4 JS |
2883 | if (!strv_isempty(minus)) { |
2884 | a = strv_env_delete(l, 1, minus); | |
2885 | if (!a) | |
2886 | return -ENOMEM; | |
2887 | ||
2888 | l = a; | |
2889 | } | |
2890 | ||
2891 | if (!strv_isempty(plus)) { | |
2892 | b = strv_env_merge(2, l, plus); | |
5eef597e MP |
2893 | if (!b) { |
2894 | strv_free(a); | |
60f067b4 | 2895 | return -ENOMEM; |
5eef597e | 2896 | } |
60f067b4 JS |
2897 | |
2898 | l = b; | |
2899 | } | |
2900 | ||
2901 | if (m->environment != l) | |
2902 | strv_free(m->environment); | |
2903 | if (a != l) | |
2904 | strv_free(a); | |
2905 | if (b != l) | |
2906 | strv_free(b); | |
2907 | ||
2908 | m->environment = l; | |
2909 | manager_clean_environment(m); | |
2910 | strv_sort(m->environment); | |
663996b3 MS |
2911 | |
2912 | return 0; | |
2913 | } | |
2914 | ||
2915 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { | |
2916 | int i; | |
2917 | ||
2918 | assert(m); | |
2919 | ||
60f067b4 | 2920 | for (i = 0; i < _RLIMIT_MAX; i++) { |
663996b3 MS |
2921 | if (!default_rlimit[i]) |
2922 | continue; | |
2923 | ||
2924 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); | |
2925 | if (!m->rlimit[i]) | |
2926 | return -ENOMEM; | |
2927 | } | |
2928 | ||
2929 | return 0; | |
2930 | } | |
2931 | ||
2932 | void manager_recheck_journal(Manager *m) { | |
2933 | Unit *u; | |
2934 | ||
2935 | assert(m); | |
2936 | ||
e3bff60a | 2937 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2938 | return; |
2939 | ||
2940 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); | |
2941 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
2942 | log_close_journal(); | |
2943 | return; | |
2944 | } | |
2945 | ||
2946 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); | |
2947 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
2948 | log_close_journal(); | |
2949 | return; | |
2950 | } | |
2951 | ||
2952 | /* Hmm, OK, so the socket is fully up and the service is up | |
2953 | * too, then let's make use of the thing. */ | |
2954 | log_open(); | |
2955 | } | |
2956 | ||
60f067b4 | 2957 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
663996b3 | 2958 | assert(m); |
60f067b4 | 2959 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
663996b3 | 2960 | |
e3bff60a | 2961 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2962 | return; |
2963 | ||
60f067b4 | 2964 | m->show_status = mode; |
663996b3 | 2965 | |
60f067b4 | 2966 | if (mode > 0) |
db2df898 | 2967 | (void) touch("/run/systemd/show-status"); |
663996b3 | 2968 | else |
db2df898 | 2969 | (void) unlink("/run/systemd/show-status"); |
663996b3 MS |
2970 | } |
2971 | ||
5eef597e | 2972 | static bool manager_get_show_status(Manager *m, StatusType type) { |
663996b3 MS |
2973 | assert(m); |
2974 | ||
e3bff60a | 2975 | if (m->running_as != MANAGER_SYSTEM) |
663996b3 MS |
2976 | return false; |
2977 | ||
14228c0d MB |
2978 | if (m->no_console_output) |
2979 | return false; | |
2980 | ||
5eef597e MP |
2981 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
2982 | return false; | |
2983 | ||
2984 | /* If we cannot find out the status properly, just proceed. */ | |
2985 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) | |
60f067b4 JS |
2986 | return false; |
2987 | ||
2988 | if (m->show_status > 0) | |
663996b3 MS |
2989 | return true; |
2990 | ||
e3bff60a | 2991 | return false; |
663996b3 MS |
2992 | } |
2993 | ||
5eef597e MP |
2994 | void manager_set_first_boot(Manager *m, bool b) { |
2995 | assert(m); | |
2996 | ||
e3bff60a | 2997 | if (m->running_as != MANAGER_SYSTEM) |
5eef597e MP |
2998 | return; |
2999 | ||
d9dfd233 MP |
3000 | if (m->first_boot != (int) b) { |
3001 | if (b) | |
3002 | (void) touch("/run/systemd/first-boot"); | |
3003 | else | |
3004 | (void) unlink("/run/systemd/first-boot"); | |
3005 | } | |
5eef597e | 3006 | |
d9dfd233 | 3007 | m->first_boot = b; |
5eef597e MP |
3008 | } |
3009 | ||
3010 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { | |
663996b3 MS |
3011 | va_list ap; |
3012 | ||
f47781d8 MP |
3013 | /* If m is NULL, assume we're after shutdown and let the messages through. */ |
3014 | ||
3015 | if (m && !manager_get_show_status(m, type)) | |
663996b3 MS |
3016 | return; |
3017 | ||
3018 | /* XXX We should totally drop the check for ephemeral here | |
3019 | * and thus effectively make 'Type=idle' pointless. */ | |
f47781d8 | 3020 | if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0) |
663996b3 MS |
3021 | return; |
3022 | ||
663996b3 | 3023 | va_start(ap, format); |
5eef597e | 3024 | status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap); |
663996b3 MS |
3025 | va_end(ap); |
3026 | } | |
3027 | ||
14228c0d MB |
3028 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { |
3029 | char p[strlen(path)+1]; | |
3030 | ||
3031 | assert(m); | |
3032 | assert(path); | |
3033 | ||
3034 | strcpy(p, path); | |
3035 | path_kill_slashes(p); | |
3036 | ||
3037 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
3038 | } | |
3039 | ||
60f067b4 JS |
3040 | const char *manager_get_runtime_prefix(Manager *m) { |
3041 | assert(m); | |
3042 | ||
e3bff60a | 3043 | return m->running_as == MANAGER_SYSTEM ? |
60f067b4 JS |
3044 | "/run" : |
3045 | getenv("XDG_RUNTIME_DIR"); | |
3046 | } | |
3047 | ||
6300502b | 3048 | int manager_update_failed_units(Manager *m, Unit *u, bool failed) { |
e3bff60a | 3049 | unsigned size; |
6300502b | 3050 | int r; |
e3bff60a MP |
3051 | |
3052 | assert(m); | |
3053 | assert(u->manager == m); | |
3054 | ||
3055 | size = set_size(m->failed_units); | |
3056 | ||
3057 | if (failed) { | |
6300502b MP |
3058 | r = set_ensure_allocated(&m->failed_units, NULL); |
3059 | if (r < 0) | |
3060 | return log_oom(); | |
3061 | ||
e3bff60a | 3062 | if (set_put(m->failed_units, u) < 0) |
6300502b | 3063 | return log_oom(); |
e3bff60a | 3064 | } else |
6300502b | 3065 | (void) set_remove(m->failed_units, u); |
e3bff60a MP |
3066 | |
3067 | if (set_size(m->failed_units) != size) | |
3068 | bus_manager_send_change_signal(m); | |
6300502b MP |
3069 | |
3070 | return 0; | |
e3bff60a MP |
3071 | } |
3072 | ||
60f067b4 JS |
3073 | ManagerState manager_state(Manager *m) { |
3074 | Unit *u; | |
3075 | ||
3076 | assert(m); | |
3077 | ||
3078 | /* Did we ever finish booting? If not then we are still starting up */ | |
5eef597e MP |
3079 | if (!dual_timestamp_is_set(&m->finish_timestamp)) { |
3080 | ||
3081 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3082 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3083 | return MANAGER_INITIALIZING; | |
3084 | ||
60f067b4 | 3085 | return MANAGER_STARTING; |
5eef597e | 3086 | } |
663996b3 | 3087 | |
60f067b4 JS |
3088 | /* Is the special shutdown target queued? If so, we are in shutdown state */ |
3089 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
3090 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
3091 | return MANAGER_STOPPING; | |
3092 | ||
3093 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
3094 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
3095 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3096 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3097 | return MANAGER_MAINTENANCE; | |
3098 | ||
3099 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
3100 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3101 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3102 | return MANAGER_MAINTENANCE; | |
3103 | ||
3104 | /* Are there any failed units? If so, we are in degraded mode */ | |
3105 | if (set_size(m->failed_units) > 0) | |
3106 | return MANAGER_DEGRADED; | |
3107 | ||
3108 | return MANAGER_RUNNING; | |
663996b3 | 3109 | } |
60f067b4 JS |
3110 | |
3111 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
5eef597e | 3112 | [MANAGER_INITIALIZING] = "initializing", |
60f067b4 JS |
3113 | [MANAGER_STARTING] = "starting", |
3114 | [MANAGER_RUNNING] = "running", | |
3115 | [MANAGER_DEGRADED] = "degraded", | |
3116 | [MANAGER_MAINTENANCE] = "maintenance", | |
3117 | [MANAGER_STOPPING] = "stopping", | |
3118 | }; | |
3119 | ||
3120 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |