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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
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 | |
5430f7f2 LP |
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 | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 | 25 | #include <signal.h> |
9152c765 LP |
26 | #include <sys/wait.h> |
27 | #include <unistd.h> | |
e46b13c8 ZJS |
28 | #include <sys/inotify.h> |
29 | #include <sys/epoll.h> | |
9152c765 | 30 | #include <sys/poll.h> |
e1414003 LP |
31 | #include <sys/reboot.h> |
32 | #include <sys/ioctl.h> | |
33 | #include <linux/kd.h> | |
80876c20 LP |
34 | #include <termios.h> |
35 | #include <fcntl.h> | |
a16e1123 LP |
36 | #include <sys/types.h> |
37 | #include <sys/stat.h> | |
fe51822e | 38 | #include <dirent.h> |
8742514c | 39 | #include <sys/timerfd.h> |
830f6caa LP |
40 | |
41 | #ifdef HAVE_AUDIT | |
4927fcae | 42 | #include <libaudit.h> |
830f6caa | 43 | #endif |
60918275 | 44 | |
718db961 LP |
45 | #include "sd-daemon.h" |
46 | #include "sd-id128.h" | |
47 | #include "sd-messages.h" | |
81527be1 | 48 | |
60918275 | 49 | #include "manager.h" |
75778e21 | 50 | #include "transaction.h" |
60918275 LP |
51 | #include "hashmap.h" |
52 | #include "macro.h" | |
53 | #include "strv.h" | |
16354eff | 54 | #include "log.h" |
2a987ee8 | 55 | #include "util.h" |
49e942b2 | 56 | #include "mkdir.h" |
ea430986 | 57 | #include "ratelimit.h" |
e21fea24 | 58 | #include "locale-setup.h" |
8e274523 | 59 | #include "mount-setup.h" |
9e2f7c11 | 60 | #include "unit-name.h" |
1137a57c | 61 | #include "missing.h" |
84e3543e | 62 | #include "path-lookup.h" |
514f4ef5 | 63 | #include "special.h" |
d06dacd0 | 64 | #include "exit-status.h" |
5dc4c17f | 65 | #include "virt.h" |
e96d6be7 | 66 | #include "watchdog.h" |
b59e2465 | 67 | #include "cgroup-util.h" |
9eb977db | 68 | #include "path-util.h" |
c1165f82 | 69 | #include "audit-fd.h" |
c51d84dc | 70 | #include "boot-timestamps.h" |
8b55b8c4 | 71 | #include "env-util.h" |
718db961 LP |
72 | #include "bus-errors.h" |
73 | #include "bus-error.h" | |
74 | #include "bus-util.h" | |
75 | #include "dbus.h" | |
76 | #include "dbus-unit.h" | |
77 | #include "dbus-job.h" | |
78 | #include "dbus-manager.h" | |
e3dd987c | 79 | #include "bus-kernel.h" |
e4746b57 | 80 | #include "time-util.h" |
60918275 | 81 | |
03b717a3 | 82 | /* Initial delay and the interval for printing status messages about running jobs */ |
fd08a840 ZJS |
83 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
84 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
03b717a3 MS |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
86 | ||
718db961 LP |
87 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
88 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
89 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
90 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
91 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 92 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 93 | |
03b717a3 | 94 | static int manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 ZJS |
95 | usec_t next; |
96 | ||
718db961 | 97 | assert(m); |
03b717a3 | 98 | |
718db961 | 99 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
100 | return 0; |
101 | ||
e5723c89 | 102 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
6a0f1f6d LP |
103 | return sd_event_add_time( |
104 | m->event, | |
105 | &m->jobs_in_progress_event_source, | |
106 | CLOCK_MONOTONIC, | |
107 | next, 0, | |
108 | manager_dispatch_jobs_in_progress, m); | |
03b717a3 MS |
109 | } |
110 | ||
718db961 | 111 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 112 | |
03b717a3 MS |
113 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
114 | char *p = buffer; | |
115 | ||
116 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
117 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
118 | ||
119 | if (pos > 1) { | |
6282c859 MS |
120 | if (pos > 2) |
121 | p = mempset(p, ' ', pos-2); | |
5052495b | 122 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
123 | *p++ = '*'; |
124 | } | |
125 | ||
126 | if (pos > 0 && pos <= width) { | |
5052495b | 127 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
128 | *p++ = '*'; |
129 | } | |
130 | ||
5052495b | 131 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
132 | |
133 | if (pos < width) { | |
5052495b | 134 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 135 | *p++ = '*'; |
6282c859 MS |
136 | if (pos < width-1) |
137 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 138 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 139 | } |
03b717a3 MS |
140 | } |
141 | ||
cb8ccb22 | 142 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
143 | assert(m); |
144 | ||
cb8ccb22 ZJS |
145 | if (enable) { |
146 | if (m->show_status == SHOW_STATUS_AUTO) | |
147 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
148 | } else { | |
149 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
150 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
151 | } | |
152 | } | |
153 | ||
03b717a3 | 154 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 155 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
156 | Iterator i; |
157 | Job *j; | |
03b717a3 MS |
158 | unsigned counter = 0, print_nr; |
159 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
160 | unsigned cylon_pos; | |
8bb310c3 ZJS |
161 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
162 | uint64_t x; | |
03b717a3 | 163 | |
718db961 LP |
164 | assert(m); |
165 | ||
cb8ccb22 | 166 | manager_flip_auto_status(m, true); |
d450b6f2 | 167 | |
03b717a3 MS |
168 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
169 | ||
170 | HASHMAP_FOREACH(j, m->jobs, i) | |
171 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
172 | break; | |
173 | ||
e970a72e MS |
174 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
175 | * so the above loop must have succeeded in finding j. */ | |
176 | assert(counter == print_nr + 1); | |
51d122af | 177 | assert(j); |
5a82a91a | 178 | |
03b717a3 MS |
179 | cylon_pos = m->jobs_in_progress_iteration % 14; |
180 | if (cylon_pos >= 8) | |
181 | cylon_pos = 14 - cylon_pos; | |
182 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
183 | ||
8bb310c3 ZJS |
184 | m->jobs_in_progress_iteration++; |
185 | ||
03b717a3 MS |
186 | if (m->n_running_jobs > 1) |
187 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
188 | job_of_n = NULL; | |
189 | ||
8bb310c3 ZJS |
190 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
191 | if (job_get_timeout(j, &x) > 0) | |
192 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
193 | ||
127d5fd1 | 194 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon, |
8bb310c3 ZJS |
195 | "%sA %s job is running for %s (%s / %s)", |
196 | strempty(job_of_n), | |
197 | job_type_to_string(j->type), | |
198 | unit_description(j->unit), | |
199 | time, limit); | |
03b717a3 | 200 | |
03b717a3 MS |
201 | } |
202 | ||
e46b13c8 ZJS |
203 | static int have_ask_password(void) { |
204 | _cleanup_closedir_ DIR *dir; | |
205 | ||
206 | dir = opendir("/run/systemd/ask-password"); | |
207 | if (!dir) { | |
208 | if (errno == ENOENT) | |
209 | return false; | |
210 | else | |
211 | return -errno; | |
212 | } | |
213 | ||
214 | for (;;) { | |
215 | struct dirent *de; | |
216 | ||
217 | errno = 0; | |
218 | de = readdir(dir); | |
219 | if (!de && errno != 0) | |
220 | return -errno; | |
221 | if (!de) | |
222 | return false; | |
223 | ||
224 | if (startswith(de->d_name, "ask.")) | |
225 | return true; | |
226 | } | |
227 | } | |
228 | ||
229 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
230 | int fd, uint32_t revents, void *userdata) { | |
231 | Manager *m = userdata; | |
232 | ||
233 | assert(m); | |
234 | ||
235 | flush_fd(fd); | |
236 | ||
237 | m->have_ask_password = have_ask_password(); | |
238 | if (m->have_ask_password < 0) | |
239 | /* Log error but continue. Negative have_ask_password | |
240 | * is treated as unknown status. */ | |
241 | log_error("Failed to list /run/systemd/ask-password: %s", strerror(m->have_ask_password)); | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
246 | static void manager_close_ask_password(Manager *m) { | |
247 | assert(m); | |
248 | ||
249 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); | |
250 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); | |
251 | m->have_ask_password = -EINVAL; | |
252 | } | |
253 | ||
254 | static int manager_check_ask_password(Manager *m) { | |
255 | int r; | |
256 | ||
257 | assert(m); | |
258 | ||
259 | if (!m->ask_password_event_source) { | |
260 | assert(m->ask_password_inotify_fd < 0); | |
261 | ||
262 | mkdir_p_label("/run/systemd/ask-password", 0755); | |
263 | ||
264 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
265 | if (m->ask_password_inotify_fd < 0) { | |
266 | log_error("inotify_init1() failed: %m"); | |
267 | return -errno; | |
268 | } | |
269 | ||
270 | if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) { | |
271 | log_error("Failed to add watch on /run/systemd/ask-password: %m"); | |
272 | manager_close_ask_password(m); | |
273 | return -errno; | |
274 | } | |
275 | ||
276 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
277 | m->ask_password_inotify_fd, EPOLLIN, | |
278 | manager_dispatch_ask_password_fd, m); | |
279 | if (r < 0) { | |
280 | log_error("Failed to add event source for /run/systemd/ask-password: %m"); | |
281 | manager_close_ask_password(m); | |
282 | return -errno; | |
283 | } | |
284 | ||
285 | /* Queries might have been added meanwhile... */ | |
286 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
287 | m->ask_password_inotify_fd, EPOLLIN, m); | |
288 | } | |
289 | ||
290 | return m->have_ask_password; | |
291 | } | |
292 | ||
31a7eb86 | 293 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
294 | int r; |
295 | ||
718db961 LP |
296 | assert(m); |
297 | ||
298 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
299 | return 0; |
300 | ||
301 | if (m->idle_pipe[2] < 0) | |
302 | return 0; | |
303 | ||
151b9b96 | 304 | r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m); |
718db961 LP |
305 | if (r < 0) { |
306 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
307 | return r; | |
31a7eb86 ZJS |
308 | } |
309 | ||
31a7eb86 | 310 | return 0; |
31a7eb86 ZJS |
311 | } |
312 | ||
718db961 LP |
313 | static void manager_close_idle_pipe(Manager *m) { |
314 | assert(m); | |
31a7eb86 | 315 | |
3d94f76c LP |
316 | safe_close_pair(m->idle_pipe); |
317 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
318 | } |
319 | ||
8742514c | 320 | static int manager_setup_time_change(Manager *m) { |
718db961 | 321 | int r; |
b92bea5d ZJS |
322 | |
323 | /* We only care for the cancellation event, hence we set the | |
324 | * timeout to the latest possible value. */ | |
325 | struct itimerspec its = { | |
326 | .it_value.tv_sec = TIME_T_MAX, | |
327 | }; | |
8742514c | 328 | |
718db961 LP |
329 | assert(m); |
330 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 331 | |
0d8c31ff ZJS |
332 | if (m->test_run) |
333 | return 0; | |
334 | ||
8742514c LP |
335 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever |
336 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
337 | ||
718db961 LP |
338 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
339 | if (m->time_change_fd < 0) { | |
8742514c LP |
340 | log_error("Failed to create timerfd: %m"); |
341 | return -errno; | |
342 | } | |
343 | ||
718db961 | 344 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 345 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
03e334a1 | 346 | m->time_change_fd = safe_close(m->time_change_fd); |
8742514c LP |
347 | return 0; |
348 | } | |
349 | ||
151b9b96 | 350 | r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m); |
718db961 LP |
351 | if (r < 0) { |
352 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
353 | return r; | |
8742514c LP |
354 | } |
355 | ||
356 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
80876c20 | 361 | static int enable_special_signals(Manager *m) { |
718db961 | 362 | _cleanup_close_ int fd = -1; |
80876c20 LP |
363 | |
364 | assert(m); | |
365 | ||
a41b539e | 366 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
367 | * this will fail with EPERM (older) or EINVAL (newer), so |
368 | * ignore that. */ | |
369 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
370 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
371 | ||
a41b539e LP |
372 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
373 | if (fd < 0) { | |
374 | /* Support systems without virtual console */ | |
375 | if (fd != -ENOENT) | |
376 | log_warning("Failed to open /dev/tty0: %m"); | |
377 | } else { | |
80876c20 LP |
378 | /* Enable that we get SIGWINCH on kbrequest */ |
379 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 380 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
381 | } |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
ce578209 | 386 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
387 | struct sigaction sa = { |
388 | .sa_handler = SIG_DFL, | |
389 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
390 | }; | |
718db961 LP |
391 | sigset_t mask; |
392 | int r; | |
60918275 | 393 | |
ce578209 LP |
394 | assert(m); |
395 | ||
57c0c30e LP |
396 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
397 | ||
4dffec14 LP |
398 | /* We make liberal use of realtime signals here. On |
399 | * Linux/glibc we have 30 of them (with the exception of Linux | |
400 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
401 | * (aka SIGRTMAX). */ | |
7d793605 | 402 | |
4dffec14 | 403 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
404 | sigset_add_many(&mask, |
405 | SIGCHLD, /* Child died */ | |
406 | SIGTERM, /* Reexecute daemon */ | |
407 | SIGHUP, /* Reload configuration */ | |
408 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
409 | SIGUSR2, /* systemd: dump status */ | |
410 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
411 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
412 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
4dffec14 | 413 | |
7d793605 | 414 | SIGRTMIN+0, /* systemd: start default.target */ |
0003d1ab | 415 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
416 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
417 | SIGRTMIN+3, /* systemd: start halt.target */ | |
418 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
419 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab | 420 | SIGRTMIN+6, /* systemd: start kexec.target */ |
4dffec14 LP |
421 | |
422 | /* ... space for more special targets ... */ | |
423 | ||
0003d1ab LP |
424 | SIGRTMIN+13, /* systemd: Immediate halt */ |
425 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
426 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
427 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
4dffec14 LP |
428 | |
429 | /* ... space for more immediate system state changes ... */ | |
430 | ||
0658666b LP |
431 | SIGRTMIN+20, /* systemd: enable status messages */ |
432 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
433 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
434 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 435 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4dffec14 LP |
436 | |
437 | /* .. one free signal here ... */ | |
438 | ||
439 | #if !defined(__hppa64__) && !defined(__hppa__) | |
440 | /* Apparently Linux on hppa has fewer RT | |
441 | * signals (SIGRTMAX is SIGRTMIN+25 there), | |
442 | * hence let's not try to make use of them | |
443 | * here. Since these commands are accessible | |
444 | * by different means and only really a safety | |
445 | * net, the missing functionality on hppa | |
446 | * shouldn't matter. */ | |
447 | ||
4cfa2c99 | 448 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
449 | SIGRTMIN+27, /* systemd: set log target to console */ |
450 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
c1dc6153 | 451 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/ |
4dffec14 LP |
452 | |
453 | /* ... one free signal here SIGRTMIN+30 ... */ | |
454 | #endif | |
7d793605 | 455 | -1); |
ce578209 LP |
456 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
457 | ||
718db961 LP |
458 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
459 | if (m->signal_fd < 0) | |
ce578209 LP |
460 | return -errno; |
461 | ||
151b9b96 | 462 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
463 | if (r < 0) |
464 | return r; | |
ce578209 | 465 | |
fa28bc2d | 466 | /* Process signals a bit earlier than the rest of things, but |
46849c3f | 467 | * later than notify_fd processing, so that the notify |
fa28bc2d LP |
468 | * processing can still figure out to which process/service a |
469 | * message belongs, before we reap the process. */ | |
29083707 LP |
470 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
471 | if (r < 0) | |
472 | return r; | |
473 | ||
67445f4e | 474 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 475 | return enable_special_signals(m); |
e1414003 | 476 | |
ce578209 LP |
477 | return 0; |
478 | } | |
479 | ||
f069efb4 LP |
480 | static void manager_clean_environment(Manager *m) { |
481 | assert(m); | |
482 | ||
483 | /* Let's remove some environment variables that we | |
484 | * need ourselves to communicate with our clients */ | |
485 | strv_env_unset_many( | |
486 | m->environment, | |
487 | "NOTIFY_SOCKET", | |
488 | "MAINPID", | |
489 | "MANAGERPID", | |
490 | "LISTEN_PID", | |
491 | "LISTEN_FDS", | |
492 | "WATCHDOG_PID", | |
493 | "WATCHDOG_USEC", | |
494 | NULL); | |
495 | } | |
496 | ||
e21fea24 | 497 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
498 | assert(m); |
499 | ||
e21fea24 KS |
500 | if (m->running_as == SYSTEMD_SYSTEM) { |
501 | /* The system manager always starts with a clean | |
502 | * environment for its children. It does not import | |
503 | * the kernel or the parents exported variables. | |
504 | * | |
505 | * The initial passed environ is untouched to keep | |
506 | * /proc/self/environ valid; it is used for tagging | |
507 | * the init process inside containers. */ | |
43638332 ZJS |
508 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
509 | NULL); | |
e21fea24 KS |
510 | |
511 | /* Import locale variables LC_*= from configuration */ | |
512 | locale_setup(&m->environment); | |
43d03a83 | 513 | } else { |
e21fea24 KS |
514 | /* The user manager passes its own environment |
515 | * along to its children. */ | |
516 | m->environment = strv_copy(environ); | |
43d03a83 LP |
517 | } |
518 | ||
e21fea24 KS |
519 | if (!m->environment) |
520 | return -ENOMEM; | |
8b55b8c4 | 521 | |
f069efb4 | 522 | manager_clean_environment(m); |
9d5a3757 LP |
523 | strv_sort(m->environment); |
524 | ||
e21fea24 | 525 | return 0; |
71ecc858 LP |
526 | } |
527 | ||
0d8c31ff | 528 | int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { |
ce578209 | 529 | Manager *m; |
e3dd987c | 530 | int r; |
8e274523 LP |
531 | |
532 | assert(_m); | |
a5dab5ce | 533 | assert(running_as >= 0); |
67445f4e | 534 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 535 | |
915b3753 LP |
536 | m = new0(Manager, 1); |
537 | if (!m) | |
8e274523 | 538 | return -ENOMEM; |
60918275 | 539 | |
4f8d551f | 540 | #ifdef ENABLE_EFI |
530a9662 | 541 | if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) |
c51d84dc | 542 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
543 | #endif |
544 | ||
a5dab5ce | 545 | m->running_as = running_as; |
a16e1123 | 546 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
bd8f585b | 547 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
80876c20 | 548 | |
718db961 | 549 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 550 | |
e3dd987c | 551 | m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1; |
ea430986 | 552 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 553 | |
e46b13c8 ZJS |
554 | m->ask_password_inotify_fd = -1; |
555 | m->have_ask_password = -EINVAL; /* we don't know */ | |
556 | ||
0d8c31ff ZJS |
557 | m->test_run = test_run; |
558 | ||
e21fea24 KS |
559 | r = manager_default_environment(m); |
560 | if (r < 0) | |
1137a57c LP |
561 | goto fail; |
562 | ||
d5099efc | 563 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
718db961 | 564 | if (r < 0) |
60918275 LP |
565 | goto fail; |
566 | ||
d5099efc | 567 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
718db961 | 568 | if (r < 0) |
60918275 LP |
569 | goto fail; |
570 | ||
d5099efc | 571 | r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops); |
718db961 | 572 | if (r < 0) |
9152c765 LP |
573 | goto fail; |
574 | ||
d5099efc | 575 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
718db961 | 576 | if (r < 0) |
05e343b7 LP |
577 | goto fail; |
578 | ||
d5099efc | 579 | r = set_ensure_allocated(&m->startup_units, NULL); |
95ae05c0 WC |
580 | if (r < 0) |
581 | goto fail; | |
582 | ||
d5099efc | 583 | r = set_ensure_allocated(&m->failed_units, NULL); |
f755e3b7 LP |
584 | if (r < 0) |
585 | goto fail; | |
586 | ||
718db961 LP |
587 | r = sd_event_default(&m->event); |
588 | if (r < 0) | |
8742514c LP |
589 | goto fail; |
590 | ||
151b9b96 | 591 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
752b5905 LP |
592 | if (r < 0) |
593 | goto fail; | |
594 | ||
595 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
596 | if (r < 0) | |
597 | goto fail; | |
598 | ||
599 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
600 | if (r < 0) | |
601 | goto fail; | |
602 | ||
8742514c LP |
603 | r = manager_setup_signals(m); |
604 | if (r < 0) | |
9152c765 LP |
605 | goto fail; |
606 | ||
8742514c LP |
607 | r = manager_setup_cgroup(m); |
608 | if (r < 0) | |
8e274523 LP |
609 | goto fail; |
610 | ||
8742514c LP |
611 | r = manager_setup_time_change(m); |
612 | if (r < 0) | |
8c47c732 LP |
613 | goto fail; |
614 | ||
9670d583 LP |
615 | m->udev = udev_new(); |
616 | if (!m->udev) { | |
617 | r = -ENOMEM; | |
618 | goto fail; | |
619 | } | |
620 | ||
d86f9d52 LP |
621 | /* Note that we set up neither kdbus, nor the notify fd |
622 | * here. We do that after deserialization, since they might | |
623 | * have gotten serialized across the reexec. */ | |
624 | ||
72bc8d00 LP |
625 | m->taint_usr = dir_is_empty("/usr") > 0; |
626 | ||
8e274523 LP |
627 | *_m = m; |
628 | return 0; | |
60918275 LP |
629 | |
630 | fail: | |
631 | manager_free(m); | |
8e274523 | 632 | return r; |
60918275 LP |
633 | } |
634 | ||
d86f9d52 | 635 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 636 | int r; |
d86f9d52 | 637 | |
0d8c31ff ZJS |
638 | if (m->test_run) |
639 | return 0; | |
640 | ||
d86f9d52 LP |
641 | if (m->notify_fd < 0) { |
642 | _cleanup_close_ int fd = -1; | |
55836941 | 643 | union sockaddr_union sa = { |
7181dbdb LP |
644 | .sa.sa_family = AF_UNIX, |
645 | }; | |
55836941 | 646 | static const int one = 1; |
d86f9d52 LP |
647 | |
648 | /* First free all secondary fields */ | |
649 | free(m->notify_socket); | |
650 | m->notify_socket = NULL; | |
651 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
652 | ||
653 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
654 | if (fd < 0) { | |
655 | log_error("Failed to allocate notification socket: %m"); | |
656 | return -errno; | |
657 | } | |
658 | ||
498e87d6 | 659 | if (m->running_as == SYSTEMD_SYSTEM) |
7181dbdb | 660 | m->notify_socket = strdup("/run/systemd/notify"); |
498e87d6 | 661 | else { |
7181dbdb | 662 | const char *e; |
d86f9d52 | 663 | |
7181dbdb LP |
664 | e = getenv("XDG_RUNTIME_DIR"); |
665 | if (!e) { | |
666 | log_error("XDG_RUNTIME_DIR is not set: %m"); | |
667 | return -EINVAL; | |
668 | } | |
669 | ||
670 | m->notify_socket = strappend(e, "/systemd/notify"); | |
671 | } | |
498e87d6 LP |
672 | if (!m->notify_socket) |
673 | return log_oom(); | |
674 | ||
675 | (void) mkdir_parents_label(m->notify_socket, 0755); | |
f0e62e89 | 676 | (void) unlink(m->notify_socket); |
7181dbdb LP |
677 | |
678 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); | |
679 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
d86f9d52 | 680 | if (r < 0) { |
70af4d17 | 681 | log_error("bind(%s) failed: %m", sa.un.sun_path); |
f0e62e89 | 682 | return -errno; |
d86f9d52 LP |
683 | } |
684 | ||
685 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
686 | if (r < 0) { | |
687 | log_error("SO_PASSCRED failed: %m"); | |
688 | return -errno; | |
689 | } | |
690 | ||
d86f9d52 LP |
691 | m->notify_fd = fd; |
692 | fd = -1; | |
693 | ||
694 | log_debug("Using notification socket %s", m->notify_socket); | |
695 | } | |
696 | ||
697 | if (!m->notify_event_source) { | |
151b9b96 | 698 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
d86f9d52 LP |
699 | if (r < 0) { |
700 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
701 | return -errno; | |
702 | } | |
703 | ||
704 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
705 | * still identify to which service an exit message belongs */ | |
706 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
707 | if (r < 0) { | |
708 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
709 | return r; | |
710 | } | |
711 | } | |
712 | ||
713 | return 0; | |
714 | } | |
715 | ||
716 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 717 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
718 | _cleanup_free_ char *p = NULL; |
719 | ||
720 | assert(m); | |
721 | ||
0d8c31ff | 722 | if (m->test_run || m->kdbus_fd >= 0) |
d86f9d52 LP |
723 | return 0; |
724 | ||
f2769777 | 725 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
726 | if (m->kdbus_fd < 0) { |
727 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
728 | return m->kdbus_fd; | |
729 | } | |
730 | ||
731 | log_debug("Successfully set up kdbus on %s", p); | |
d86f9d52 LP |
732 | #endif |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
738 | bool try_bus_connect; | |
739 | ||
740 | assert(m); | |
741 | ||
0d8c31ff ZJS |
742 | if (m->test_run) |
743 | return 0; | |
744 | ||
d86f9d52 LP |
745 | try_bus_connect = |
746 | m->kdbus_fd >= 0 || | |
747 | reexecuting || | |
748 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
749 | ||
750 | /* Try to connect to the busses, if possible. */ | |
751 | return bus_init(m, try_bus_connect); | |
752 | } | |
753 | ||
23a177ef | 754 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 755 | Unit *u; |
23a177ef LP |
756 | unsigned n = 0; |
757 | ||
758 | assert(m); | |
759 | ||
595ed347 MS |
760 | while ((u = m->cleanup_queue)) { |
761 | assert(u->in_cleanup_queue); | |
23a177ef | 762 | |
595ed347 | 763 | unit_free(u); |
23a177ef LP |
764 | n++; |
765 | } | |
766 | ||
767 | return n; | |
768 | } | |
769 | ||
eced69b3 | 770 | enum { |
35b8ca3a | 771 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
772 | GC_OFFSET_UNSURE, /* No clue */ |
773 | GC_OFFSET_GOOD, /* We still need this unit */ | |
774 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
775 | _GC_OFFSET_MAX | |
776 | }; | |
777 | ||
778 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
779 | Iterator i; |
780 | Unit *other; | |
eced69b3 | 781 | bool is_bad; |
701cc384 LP |
782 | |
783 | assert(u); | |
784 | ||
ac155bb8 MS |
785 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
786 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
787 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
788 | return; |
789 | ||
ac155bb8 | 790 | if (u->in_cleanup_queue) |
701cc384 LP |
791 | goto bad; |
792 | ||
793 | if (unit_check_gc(u)) | |
794 | goto good; | |
795 | ||
ac155bb8 | 796 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
797 | |
798 | is_bad = true; | |
799 | ||
ac155bb8 | 800 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
801 | unit_gc_sweep(other, gc_marker); |
802 | ||
ac155bb8 | 803 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 804 | goto good; |
eced69b3 | 805 | |
ac155bb8 | 806 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 807 | is_bad = false; |
701cc384 LP |
808 | } |
809 | ||
eced69b3 LP |
810 | if (is_bad) |
811 | goto bad; | |
812 | ||
813 | /* We were unable to find anything out about this entry, so | |
814 | * let's investigate it later */ | |
ac155bb8 | 815 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
816 | unit_add_to_gc_queue(u); |
817 | return; | |
818 | ||
701cc384 | 819 | bad: |
eced69b3 LP |
820 | /* We definitely know that this one is not useful anymore, so |
821 | * let's mark it for deletion */ | |
ac155bb8 | 822 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 823 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
824 | return; |
825 | ||
826 | good: | |
ac155bb8 | 827 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
828 | } |
829 | ||
830 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 831 | Unit *u; |
701cc384 | 832 | unsigned n = 0; |
eced69b3 | 833 | unsigned gc_marker; |
701cc384 LP |
834 | |
835 | assert(m); | |
836 | ||
cf1265e1 | 837 | /* log_debug("Running GC..."); */ |
701cc384 | 838 | |
eced69b3 LP |
839 | m->gc_marker += _GC_OFFSET_MAX; |
840 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 841 | m->gc_marker = 1; |
701cc384 | 842 | |
eced69b3 LP |
843 | gc_marker = m->gc_marker; |
844 | ||
595ed347 MS |
845 | while ((u = m->gc_queue)) { |
846 | assert(u->in_gc_queue); | |
701cc384 | 847 | |
595ed347 | 848 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 849 | |
71fda00f | 850 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 851 | u->in_gc_queue = false; |
701cc384 LP |
852 | |
853 | n++; | |
854 | ||
595ed347 MS |
855 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
856 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 857 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
858 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
859 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
860 | } |
861 | } | |
862 | ||
863 | m->n_in_gc_queue = 0; | |
701cc384 LP |
864 | |
865 | return n; | |
866 | } | |
867 | ||
a16e1123 | 868 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 869 | Unit *u; |
60918275 LP |
870 | |
871 | assert(m); | |
872 | ||
87f0e418 LP |
873 | while ((u = hashmap_first(m->units))) |
874 | unit_free(u); | |
964e0949 LP |
875 | |
876 | manager_dispatch_cleanup_queue(m); | |
877 | ||
878 | assert(!m->load_queue); | |
879 | assert(!m->run_queue); | |
880 | assert(!m->dbus_unit_queue); | |
881 | assert(!m->dbus_job_queue); | |
882 | assert(!m->cleanup_queue); | |
883 | assert(!m->gc_queue); | |
884 | ||
964e0949 LP |
885 | assert(hashmap_isempty(m->jobs)); |
886 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
887 | |
888 | m->n_on_console = 0; | |
889 | m->n_running_jobs = 0; | |
a16e1123 LP |
890 | } |
891 | ||
06d8d842 | 892 | Manager* manager_free(Manager *m) { |
a16e1123 | 893 | UnitType c; |
c93ff2e9 | 894 | int i; |
87f0e418 | 895 | |
06d8d842 ZJS |
896 | if (!m) |
897 | return NULL; | |
a16e1123 LP |
898 | |
899 | manager_clear_jobs_and_units(m); | |
23a177ef | 900 | |
7824bbeb LP |
901 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
902 | if (unit_vtable[c]->shutdown) | |
903 | unit_vtable[c]->shutdown(m); | |
904 | ||
a16e1123 LP |
905 | /* If we reexecute ourselves, we keep the root cgroup |
906 | * around */ | |
c6c18be3 | 907 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 908 | |
5a1e9937 LP |
909 | manager_undo_generators(m); |
910 | ||
5e8d1c9a | 911 | bus_done(m); |
ea430986 | 912 | |
87f0e418 | 913 | hashmap_free(m->units); |
60918275 | 914 | hashmap_free(m->jobs); |
5ba6985b LP |
915 | hashmap_free(m->watch_pids1); |
916 | hashmap_free(m->watch_pids2); | |
05e343b7 | 917 | hashmap_free(m->watch_bus); |
9152c765 | 918 | |
95ae05c0 | 919 | set_free(m->startup_units); |
f755e3b7 LP |
920 | set_free(m->failed_units); |
921 | ||
718db961 LP |
922 | sd_event_source_unref(m->signal_event_source); |
923 | sd_event_source_unref(m->notify_event_source); | |
924 | sd_event_source_unref(m->time_change_event_source); | |
925 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
926 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 927 | sd_event_source_unref(m->run_queue_event_source); |
718db961 | 928 | |
03e334a1 LP |
929 | safe_close(m->signal_fd); |
930 | safe_close(m->notify_fd); | |
931 | safe_close(m->time_change_fd); | |
932 | safe_close(m->kdbus_fd); | |
718db961 | 933 | |
e46b13c8 ZJS |
934 | manager_close_ask_password(m); |
935 | ||
718db961 LP |
936 | manager_close_idle_pipe(m); |
937 | ||
9670d583 | 938 | udev_unref(m->udev); |
718db961 | 939 | sd_event_unref(m->event); |
60918275 | 940 | |
c952c6ec LP |
941 | free(m->notify_socket); |
942 | ||
84e3543e | 943 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 944 | strv_free(m->environment); |
036643a2 | 945 | |
4ad49000 | 946 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 947 | set_free_free(m->unit_path_cache); |
33be102a | 948 | |
664f88a7 LP |
949 | free(m->switch_root); |
950 | free(m->switch_root_init); | |
951 | ||
517d56b1 | 952 | for (i = 0; i < _RLIMIT_MAX; i++) |
c93ff2e9 FC |
953 | free(m->rlimit[i]); |
954 | ||
a57f7e2c LP |
955 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
956 | hashmap_free(m->units_requiring_mounts_for); | |
957 | ||
60918275 | 958 | free(m); |
06d8d842 | 959 | return NULL; |
60918275 LP |
960 | } |
961 | ||
a16e1123 LP |
962 | int manager_enumerate(Manager *m) { |
963 | int r = 0, q; | |
f50e0a01 | 964 | UnitType c; |
f50e0a01 LP |
965 | |
966 | assert(m); | |
967 | ||
a16e1123 LP |
968 | /* Let's ask every type to load all units from disk/kernel |
969 | * that it might know */ | |
f50e0a01 | 970 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
971 | if (unit_vtable[c]->enumerate) { |
972 | q = unit_vtable[c]->enumerate(m); | |
973 | if (q < 0) | |
a16e1123 | 974 | r = q; |
a57f7e2c | 975 | } |
f50e0a01 LP |
976 | |
977 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
978 | return r; |
979 | } | |
980 | ||
9588bc32 | 981 | static int manager_coldplug(Manager *m) { |
8f8f05a9 | 982 | int r = 0; |
a16e1123 LP |
983 | Iterator i; |
984 | Unit *u; | |
985 | char *k; | |
986 | ||
987 | assert(m); | |
f50e0a01 LP |
988 | |
989 | /* Then, let's set up their initial state. */ | |
990 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
8f8f05a9 | 991 | int q; |
f50e0a01 LP |
992 | |
993 | /* ignore aliases */ | |
ac155bb8 | 994 | if (u->id != k) |
f50e0a01 LP |
995 | continue; |
996 | ||
8f8f05a9 LP |
997 | q = unit_coldplug(u); |
998 | if (q < 0) | |
cca098b0 | 999 | r = q; |
f50e0a01 LP |
1000 | } |
1001 | ||
a16e1123 LP |
1002 | return r; |
1003 | } | |
1004 | ||
fe51822e LP |
1005 | static void manager_build_unit_path_cache(Manager *m) { |
1006 | char **i; | |
807d0cca | 1007 | _cleanup_closedir_ DIR *d = NULL; |
fe51822e LP |
1008 | int r; |
1009 | ||
1010 | assert(m); | |
1011 | ||
1012 | set_free_free(m->unit_path_cache); | |
1013 | ||
d5099efc | 1014 | m->unit_path_cache = set_new(&string_hash_ops); |
874310b7 | 1015 | if (!m->unit_path_cache) { |
fe51822e LP |
1016 | log_error("Failed to allocate unit path cache."); |
1017 | return; | |
1018 | } | |
1019 | ||
1020 | /* This simply builds a list of files we know exist, so that | |
1021 | * we don't always have to go to disk */ | |
1022 | ||
1023 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
1024 | struct dirent *de; | |
1025 | ||
bd0af849 ZJS |
1026 | d = opendir(*i); |
1027 | if (!d) { | |
874310b7 ZJS |
1028 | if (errno != ENOENT) |
1029 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
1030 | continue; |
1031 | } | |
1032 | ||
1033 | while ((de = readdir(d))) { | |
1034 | char *p; | |
1035 | ||
1036 | if (ignore_file(de->d_name)) | |
1037 | continue; | |
1038 | ||
b7def684 | 1039 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 1040 | if (!p) { |
fe51822e LP |
1041 | r = -ENOMEM; |
1042 | goto fail; | |
1043 | } | |
1044 | ||
ef42202a ZJS |
1045 | r = set_consume(m->unit_path_cache, p); |
1046 | if (r < 0) | |
fe51822e | 1047 | goto fail; |
fe51822e LP |
1048 | } |
1049 | ||
1050 | closedir(d); | |
1051 | d = NULL; | |
1052 | } | |
1053 | ||
1054 | return; | |
1055 | ||
1056 | fail: | |
1057 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
1058 | ||
1059 | set_free_free(m->unit_path_cache); | |
1060 | m->unit_path_cache = NULL; | |
fe51822e LP |
1061 | } |
1062 | ||
9588bc32 LP |
1063 | |
1064 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
1065 | Unit *u; | |
1066 | Iterator i; | |
1067 | int r; | |
1068 | ||
1069 | assert(m); | |
1070 | ||
1071 | HASHMAP_FOREACH(u, m->units, i) { | |
1072 | ||
1073 | if (fdset_size(fds) <= 0) | |
1074 | break; | |
1075 | ||
1076 | if (UNIT_VTABLE(u)->distribute_fds) { | |
1077 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
1078 | if (r < 0) | |
1079 | return r; | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | return 0; | |
1084 | } | |
1085 | ||
a16e1123 LP |
1086 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
1087 | int r, q; | |
1088 | ||
1089 | assert(m); | |
1090 | ||
518d10e9 | 1091 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 1092 | manager_run_generators(m); |
518d10e9 | 1093 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 1094 | |
07719a21 LP |
1095 | r = lookup_paths_init( |
1096 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 1097 | NULL, |
07719a21 LP |
1098 | m->generator_unit_path, |
1099 | m->generator_unit_path_early, | |
1100 | m->generator_unit_path_late); | |
1101 | if (r < 0) | |
1102 | return r; | |
1103 | ||
fe51822e LP |
1104 | manager_build_unit_path_cache(m); |
1105 | ||
9f611ad8 LP |
1106 | /* If we will deserialize make sure that during enumeration |
1107 | * this is already known, so we increase the counter here | |
1108 | * already */ | |
1109 | if (serialization) | |
a7556052 | 1110 | m->n_reloading ++; |
9f611ad8 | 1111 | |
a16e1123 | 1112 | /* First, enumerate what we can from all config files */ |
718db961 | 1113 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 1114 | r = manager_enumerate(m); |
718db961 | 1115 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
1116 | |
1117 | /* Second, deserialize if there is something to deserialize */ | |
1cd974ed ZJS |
1118 | if (serialization) |
1119 | r = manager_deserialize(m, serialization, fds); | |
a16e1123 | 1120 | |
01e10de3 LP |
1121 | /* Any fds left? Find some unit which wants them. This is |
1122 | * useful to allow container managers to pass some file | |
1123 | * descriptors to us pre-initialized. This enables | |
1124 | * socket-based activation of entire containers. */ | |
1125 | if (fdset_size(fds) > 0) { | |
1126 | q = manager_distribute_fds(m, fds); | |
1cd974ed | 1127 | if (q < 0 && r == 0) |
01e10de3 LP |
1128 | r = q; |
1129 | } | |
1130 | ||
d86f9d52 LP |
1131 | /* We might have deserialized the notify fd, but if we didn't |
1132 | * then let's create the bus now */ | |
1cd974ed ZJS |
1133 | q = manager_setup_notify(m); |
1134 | if (q < 0 && r == 0) | |
1135 | r = q; | |
d86f9d52 | 1136 | |
e3dd987c LP |
1137 | /* We might have deserialized the kdbus control fd, but if we |
1138 | * didn't, then let's create the bus now. */ | |
1139 | manager_setup_kdbus(m); | |
1140 | manager_connect_bus(m, !!serialization); | |
8f8f05a9 | 1141 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); |
e3dd987c | 1142 | |
a16e1123 | 1143 | /* Third, fire things up! */ |
07719a21 | 1144 | q = manager_coldplug(m); |
1cd974ed | 1145 | if (q < 0 && r == 0) |
a16e1123 LP |
1146 | r = q; |
1147 | ||
9f611ad8 | 1148 | if (serialization) { |
a7556052 LP |
1149 | assert(m->n_reloading > 0); |
1150 | m->n_reloading --; | |
71445ae7 LP |
1151 | |
1152 | /* Let's wait for the UnitNew/JobNew messages being | |
1153 | * sent, before we notify that the reload is | |
1154 | * finished */ | |
1155 | m->send_reloading_done = true; | |
9f611ad8 LP |
1156 | } |
1157 | ||
a16e1123 | 1158 | return r; |
f50e0a01 LP |
1159 | } |
1160 | ||
718db961 | 1161 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 1162 | int r; |
7527cb52 | 1163 | Transaction *tr; |
e5b5ae50 LP |
1164 | |
1165 | assert(m); | |
1166 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1167 | assert(unit); |
e5b5ae50 | 1168 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1169 | |
7358dc02 ZJS |
1170 | if (mode == JOB_ISOLATE && type != JOB_START) |
1171 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); | |
c497c7a9 | 1172 | |
7358dc02 ZJS |
1173 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
1174 | return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); | |
2528a7a6 | 1175 | |
66870f90 ZJS |
1176 | log_debug_unit(unit->id, |
1177 | "Trying to enqueue job %s/%s/%s", unit->id, | |
1178 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 1179 | |
e0209d83 MS |
1180 | job_type_collapse(&type, unit); |
1181 | ||
23ade460 | 1182 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1183 | if (!tr) |
1184 | return -ENOMEM; | |
11dd41ce | 1185 | |
7527cb52 MS |
1186 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1187 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1188 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1189 | if (r < 0) |
1190 | goto tr_abort; | |
c497c7a9 | 1191 | |
7527cb52 MS |
1192 | if (mode == JOB_ISOLATE) { |
1193 | r = transaction_add_isolate_jobs(tr, m); | |
1194 | if (r < 0) | |
1195 | goto tr_abort; | |
1196 | } | |
1197 | ||
1198 | r = transaction_activate(tr, m, mode, e); | |
1199 | if (r < 0) | |
1200 | goto tr_abort; | |
e5b5ae50 | 1201 | |
66870f90 ZJS |
1202 | log_debug_unit(unit->id, |
1203 | "Enqueued job %s/%s as %u", unit->id, | |
1204 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1205 | |
e5b5ae50 | 1206 | if (_ret) |
b94fbd30 | 1207 | *_ret = tr->anchor_job; |
60918275 | 1208 | |
7527cb52 | 1209 | transaction_free(tr); |
e5b5ae50 | 1210 | return 0; |
7527cb52 MS |
1211 | |
1212 | tr_abort: | |
1213 | transaction_abort(tr); | |
1214 | transaction_free(tr); | |
1215 | return r; | |
e5b5ae50 | 1216 | } |
60918275 | 1217 | |
718db961 | 1218 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
28247076 LP |
1219 | Unit *unit; |
1220 | int r; | |
1221 | ||
1222 | assert(m); | |
1223 | assert(type < _JOB_TYPE_MAX); | |
1224 | assert(name); | |
1225 | assert(mode < _JOB_MODE_MAX); | |
1226 | ||
c3090674 LP |
1227 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1228 | if (r < 0) | |
28247076 LP |
1229 | return r; |
1230 | ||
398ef8ba | 1231 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1232 | } |
1233 | ||
60918275 LP |
1234 | Job *manager_get_job(Manager *m, uint32_t id) { |
1235 | assert(m); | |
1236 | ||
1237 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1238 | } | |
1239 | ||
87f0e418 | 1240 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1241 | assert(m); |
1242 | assert(name); | |
1243 | ||
87f0e418 | 1244 | return hashmap_get(m->units, name); |
60918275 LP |
1245 | } |
1246 | ||
c1e1601e | 1247 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1248 | Unit *u; |
c1e1601e | 1249 | unsigned n = 0; |
60918275 LP |
1250 | |
1251 | assert(m); | |
1252 | ||
223dabab LP |
1253 | /* Make sure we are not run recursively */ |
1254 | if (m->dispatching_load_queue) | |
c1e1601e | 1255 | return 0; |
223dabab LP |
1256 | |
1257 | m->dispatching_load_queue = true; | |
1258 | ||
87f0e418 | 1259 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1260 | * tries to load its data until the queue is empty */ |
1261 | ||
595ed347 MS |
1262 | while ((u = m->load_queue)) { |
1263 | assert(u->in_load_queue); | |
034c6ed7 | 1264 | |
595ed347 | 1265 | unit_load(u); |
c1e1601e | 1266 | n++; |
60918275 LP |
1267 | } |
1268 | ||
223dabab | 1269 | m->dispatching_load_queue = false; |
c1e1601e | 1270 | return n; |
60918275 LP |
1271 | } |
1272 | ||
c2756a68 LP |
1273 | int manager_load_unit_prepare( |
1274 | Manager *m, | |
1275 | const char *name, | |
1276 | const char *path, | |
718db961 | 1277 | sd_bus_error *e, |
c2756a68 LP |
1278 | Unit **_ret) { |
1279 | ||
87f0e418 | 1280 | Unit *ret; |
7d17cfbc | 1281 | UnitType t; |
60918275 LP |
1282 | int r; |
1283 | ||
1284 | assert(m); | |
9e2f7c11 | 1285 | assert(name || path); |
60918275 | 1286 | |
db06e3b6 LP |
1287 | /* This will prepare the unit for loading, but not actually |
1288 | * load anything from disk. */ | |
0301abf4 | 1289 | |
718db961 LP |
1290 | if (path && !is_path(path)) |
1291 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1292 | |
1293 | if (!name) | |
2b6bf07d | 1294 | name = basename(path); |
9e2f7c11 | 1295 | |
7d17cfbc MS |
1296 | t = unit_name_to_type(name); |
1297 | ||
f78e6385 | 1298 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1299 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1300 | |
7d17cfbc MS |
1301 | ret = manager_get_unit(m, name); |
1302 | if (ret) { | |
034c6ed7 | 1303 | *_ret = ret; |
413d6313 | 1304 | return 1; |
034c6ed7 | 1305 | } |
60918275 | 1306 | |
7d17cfbc MS |
1307 | ret = unit_new(m, unit_vtable[t]->object_size); |
1308 | if (!ret) | |
60918275 LP |
1309 | return -ENOMEM; |
1310 | ||
7d17cfbc | 1311 | if (path) { |
ac155bb8 MS |
1312 | ret->fragment_path = strdup(path); |
1313 | if (!ret->fragment_path) { | |
0301abf4 LP |
1314 | unit_free(ret); |
1315 | return -ENOMEM; | |
1316 | } | |
7d17cfbc | 1317 | } |
0301abf4 | 1318 | |
1058cbf2 ZJS |
1319 | r = unit_add_name(ret, name); |
1320 | if (r < 0) { | |
87f0e418 | 1321 | unit_free(ret); |
1ffba6fe | 1322 | return r; |
60918275 LP |
1323 | } |
1324 | ||
87f0e418 | 1325 | unit_add_to_load_queue(ret); |
c1e1601e | 1326 | unit_add_to_dbus_queue(ret); |
949061f0 | 1327 | unit_add_to_gc_queue(ret); |
c1e1601e | 1328 | |
db06e3b6 LP |
1329 | if (_ret) |
1330 | *_ret = ret; | |
1331 | ||
1332 | return 0; | |
1333 | } | |
1334 | ||
c2756a68 LP |
1335 | int manager_load_unit( |
1336 | Manager *m, | |
1337 | const char *name, | |
1338 | const char *path, | |
718db961 | 1339 | sd_bus_error *e, |
c2756a68 LP |
1340 | Unit **_ret) { |
1341 | ||
db06e3b6 LP |
1342 | int r; |
1343 | ||
1344 | assert(m); | |
1345 | ||
1346 | /* This will load the service information files, but not actually | |
1347 | * start any services or anything. */ | |
1348 | ||
c3090674 LP |
1349 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1350 | if (r != 0) | |
db06e3b6 LP |
1351 | return r; |
1352 | ||
f50e0a01 | 1353 | manager_dispatch_load_queue(m); |
60918275 | 1354 | |
9e2f7c11 | 1355 | if (_ret) |
413d6313 | 1356 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1357 | |
60918275 LP |
1358 | return 0; |
1359 | } | |
a66d02c3 | 1360 | |
cea8e32e | 1361 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1362 | Iterator i; |
a66d02c3 LP |
1363 | Job *j; |
1364 | ||
1365 | assert(s); | |
1366 | assert(f); | |
1367 | ||
034c6ed7 | 1368 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1369 | job_dump(j, f, prefix); |
a66d02c3 LP |
1370 | } |
1371 | ||
87f0e418 | 1372 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1373 | Iterator i; |
87f0e418 | 1374 | Unit *u; |
11dd41ce | 1375 | const char *t; |
a66d02c3 LP |
1376 | |
1377 | assert(s); | |
1378 | assert(f); | |
1379 | ||
87f0e418 | 1380 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1381 | if (u->id == t) |
87f0e418 | 1382 | unit_dump(u, f, prefix); |
a66d02c3 | 1383 | } |
7fad411c LP |
1384 | |
1385 | void manager_clear_jobs(Manager *m) { | |
1386 | Job *j; | |
1387 | ||
1388 | assert(m); | |
1389 | ||
7fad411c | 1390 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1391 | /* No need to recurse. We're cancelling all jobs. */ |
1392 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1393 | } |
83c60c9f | 1394 | |
752b5905 LP |
1395 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1396 | Manager *m = userdata; | |
83c60c9f | 1397 | Job *j; |
034c6ed7 | 1398 | |
752b5905 LP |
1399 | assert(source); |
1400 | assert(m); | |
9152c765 | 1401 | |
034c6ed7 | 1402 | while ((j = m->run_queue)) { |
ac1135be | 1403 | assert(j->installed); |
034c6ed7 LP |
1404 | assert(j->in_run_queue); |
1405 | ||
1406 | job_run_and_invalidate(j); | |
9152c765 | 1407 | } |
034c6ed7 | 1408 | |
a0b64226 | 1409 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1410 | manager_watch_jobs_in_progress(m); |
1411 | ||
31a7eb86 ZJS |
1412 | if (m->n_on_console > 0) |
1413 | manager_watch_idle_pipe(m); | |
1414 | ||
752b5905 | 1415 | return 1; |
c1e1601e LP |
1416 | } |
1417 | ||
9588bc32 | 1418 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1419 | Job *j; |
595ed347 | 1420 | Unit *u; |
c1e1601e LP |
1421 | unsigned n = 0; |
1422 | ||
1423 | assert(m); | |
1424 | ||
1425 | if (m->dispatching_dbus_queue) | |
1426 | return 0; | |
1427 | ||
1428 | m->dispatching_dbus_queue = true; | |
1429 | ||
595ed347 MS |
1430 | while ((u = m->dbus_unit_queue)) { |
1431 | assert(u->in_dbus_queue); | |
c1e1601e | 1432 | |
595ed347 | 1433 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1434 | n++; |
1435 | } | |
1436 | ||
1437 | while ((j = m->dbus_job_queue)) { | |
1438 | assert(j->in_dbus_queue); | |
1439 | ||
1440 | bus_job_send_change_signal(j); | |
1441 | n++; | |
1442 | } | |
1443 | ||
1444 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1445 | |
1446 | if (m->send_reloading_done) { | |
1447 | m->send_reloading_done = false; | |
1448 | ||
718db961 | 1449 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1450 | } |
1451 | ||
718db961 LP |
1452 | if (m->queued_message) |
1453 | bus_send_queued_message(m); | |
1454 | ||
c1e1601e | 1455 | return n; |
9152c765 LP |
1456 | } |
1457 | ||
5ba6985b LP |
1458 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) { |
1459 | _cleanup_strv_free_ char **tags = NULL; | |
1460 | ||
1461 | assert(m); | |
1462 | assert(u); | |
1463 | assert(buf); | |
1464 | assert(n > 0); | |
1465 | ||
1466 | tags = strv_split(buf, "\n\r"); | |
1467 | if (!tags) { | |
1468 | log_oom(); | |
1469 | return; | |
1470 | } | |
1471 | ||
1472 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); | |
1473 | ||
1474 | if (UNIT_VTABLE(u)->notify_message) | |
1475 | UNIT_VTABLE(u)->notify_message(u, pid, tags); | |
1476 | } | |
1477 | ||
718db961 LP |
1478 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1479 | Manager *m = userdata; | |
8c47c732 LP |
1480 | ssize_t n; |
1481 | ||
1482 | assert(m); | |
718db961 LP |
1483 | assert(m->notify_fd == fd); |
1484 | ||
1485 | if (revents != EPOLLIN) { | |
1486 | log_warning("Got unexpected poll event for notify fd."); | |
1487 | return 0; | |
1488 | } | |
8c47c732 LP |
1489 | |
1490 | for (;;) { | |
1491 | char buf[4096]; | |
b92bea5d ZJS |
1492 | struct iovec iovec = { |
1493 | .iov_base = buf, | |
1494 | .iov_len = sizeof(buf)-1, | |
1495 | }; | |
5ba6985b | 1496 | bool found = false; |
b92bea5d | 1497 | |
8c47c732 LP |
1498 | union { |
1499 | struct cmsghdr cmsghdr; | |
1500 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1501 | } control = {}; |
1502 | ||
1503 | struct msghdr msghdr = { | |
1504 | .msg_iov = &iovec, | |
1505 | .msg_iovlen = 1, | |
1506 | .msg_control = &control, | |
1507 | .msg_controllen = sizeof(control), | |
1508 | }; | |
1509 | struct ucred *ucred; | |
70af4d17 | 1510 | Unit *u1, *u2, *u3; |
8c47c732 | 1511 | |
718db961 | 1512 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1513 | if (n <= 0) { |
b92bea5d | 1514 | if (n == 0) |
8c47c732 LP |
1515 | return -EIO; |
1516 | ||
f6144808 | 1517 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1518 | break; |
1519 | ||
1520 | return -errno; | |
1521 | } | |
1522 | ||
1523 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1524 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1525 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1526 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1527 | log_warning("Received notify message without credentials. Ignoring."); | |
1528 | continue; | |
1529 | } | |
1530 | ||
1531 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1532 | ||
8c40acf7 LP |
1533 | assert((size_t) n < sizeof(buf)); |
1534 | buf[n] = 0; | |
8c47c732 | 1535 | |
70af4d17 LP |
1536 | /* Notify every unit that might be interested, but try |
1537 | * to avoid notifying the same one multiple times. */ | |
1538 | u1 = manager_get_unit_by_pid(m, ucred->pid); | |
1539 | if (u1) { | |
1540 | manager_invoke_notify_message(m, u1, ucred->pid, buf, n); | |
5ba6985b LP |
1541 | found = true; |
1542 | } | |
1543 | ||
70af4d17 LP |
1544 | u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); |
1545 | if (u2 && u2 != u1) { | |
1546 | manager_invoke_notify_message(m, u2, ucred->pid, buf, n); | |
5ba6985b LP |
1547 | found = true; |
1548 | } | |
1549 | ||
70af4d17 LP |
1550 | u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); |
1551 | if (u3 && u3 != u2 && u3 != u1) { | |
1552 | manager_invoke_notify_message(m, u3, ucred->pid, buf, n); | |
5ba6985b LP |
1553 | found = true; |
1554 | } | |
8c47c732 | 1555 | |
5ba6985b LP |
1556 | if (!found) |
1557 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
8c47c732 LP |
1558 | } |
1559 | ||
1560 | return 0; | |
1561 | } | |
1562 | ||
5ba6985b LP |
1563 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1564 | assert(m); | |
1565 | assert(u); | |
1566 | assert(si); | |
1567 | ||
1568 | log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); | |
1569 | ||
1570 | unit_unwatch_pid(u, si->si_pid); | |
1571 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1572 | } | |
1573 | ||
034c6ed7 | 1574 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1575 | assert(m); |
1576 | ||
1577 | for (;;) { | |
b92bea5d | 1578 | siginfo_t si = {}; |
9152c765 | 1579 | |
4112df16 LP |
1580 | /* First we call waitd() for a PID and do not reap the |
1581 | * zombie. That way we can still access /proc/$PID for | |
1582 | * it while it is a zombie. */ | |
1583 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1584 | |
1585 | if (errno == ECHILD) | |
1586 | break; | |
1587 | ||
4112df16 LP |
1588 | if (errno == EINTR) |
1589 | continue; | |
1590 | ||
9152c765 | 1591 | return -errno; |
acbb0225 | 1592 | } |
9152c765 | 1593 | |
4112df16 | 1594 | if (si.si_pid <= 0) |
9152c765 LP |
1595 | break; |
1596 | ||
15d5d9d9 | 1597 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1598 | _cleanup_free_ char *name = NULL; |
70af4d17 | 1599 | Unit *u1, *u2, *u3; |
4112df16 | 1600 | |
87d2c1ff | 1601 | get_process_comm(si.si_pid, &name); |
4112df16 | 1602 | |
5ba6985b LP |
1603 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1604 | si.si_pid, strna(name), | |
1605 | sigchld_code_to_string(si.si_code), | |
1606 | si.si_status, | |
1607 | strna(si.si_code == CLD_EXITED | |
1608 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1609 | : signal_to_string(si.si_status))); | |
1610 | ||
1611 | /* And now figure out the unit this belongs | |
1612 | * to, it might be multiple... */ | |
70af4d17 LP |
1613 | u1 = manager_get_unit_by_pid(m, si.si_pid); |
1614 | if (u1) | |
1615 | invoke_sigchld_event(m, u1, &si); | |
1616 | u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); | |
1617 | if (u2 && u2 != u1) | |
1618 | invoke_sigchld_event(m, u2, &si); | |
1619 | u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); | |
1620 | if (u3 && u3 != u2 && u3 != u1) | |
1621 | invoke_sigchld_event(m, u3, &si); | |
5ba6985b | 1622 | } |
8c47c732 | 1623 | |
4112df16 LP |
1624 | /* And now, we actually reap the zombie. */ |
1625 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1626 | if (errno == EINTR) | |
1627 | continue; | |
1628 | ||
1629 | return -errno; | |
1630 | } | |
9152c765 LP |
1631 | } |
1632 | ||
1633 | return 0; | |
1634 | } | |
1635 | ||
7d793605 | 1636 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1637 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1638 | int r; |
398ef8ba | 1639 | |
66870f90 | 1640 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1641 | |
bd0af849 ZJS |
1642 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1643 | if (r < 0) | |
718db961 | 1644 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1645 | |
1646 | return r; | |
28247076 LP |
1647 | } |
1648 | ||
718db961 LP |
1649 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1650 | Manager *m = userdata; | |
9152c765 LP |
1651 | ssize_t n; |
1652 | struct signalfd_siginfo sfsi; | |
1653 | bool sigchld = false; | |
1654 | ||
1655 | assert(m); | |
718db961 LP |
1656 | assert(m->signal_fd == fd); |
1657 | ||
1658 | if (revents != EPOLLIN) { | |
1659 | log_warning("Got unexpected events from signal file descriptor."); | |
1660 | return 0; | |
1661 | } | |
9152c765 LP |
1662 | |
1663 | for (;;) { | |
718db961 | 1664 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1665 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1666 | |
1667 | if (n >= 0) | |
1668 | return -EIO; | |
1669 | ||
63090775 | 1670 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1671 | break; |
9152c765 LP |
1672 | |
1673 | return -errno; | |
1674 | } | |
1675 | ||
4daf54a8 ZJS |
1676 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
1677 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1678 | ? LOG_DEBUG : LOG_INFO, | |
1679 | &sfsi); | |
1e001f52 | 1680 | |
b9cd2ec1 LP |
1681 | switch (sfsi.ssi_signo) { |
1682 | ||
4112df16 | 1683 | case SIGCHLD: |
9152c765 | 1684 | sigchld = true; |
b9cd2ec1 LP |
1685 | break; |
1686 | ||
6632c602 | 1687 | case SIGTERM: |
67445f4e | 1688 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1689 | /* This is for compatibility with the |
1690 | * original sysvinit */ | |
e11dc4a2 | 1691 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1692 | break; |
1693 | } | |
84e9af1e | 1694 | |
a1b256b0 | 1695 | /* Fall through */ |
e11dc4a2 LP |
1696 | |
1697 | case SIGINT: | |
67445f4e | 1698 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1699 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1700 | break; |
1701 | } | |
1702 | ||
a1b256b0 | 1703 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1704 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1705 | m->exit_code = MANAGER_EXIT; |
1706 | return 0; | |
1707 | } | |
1708 | ||
1709 | break; | |
84e9af1e | 1710 | |
28247076 | 1711 | case SIGWINCH: |
67445f4e | 1712 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1713 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1714 | |
28247076 LP |
1715 | /* This is a nop on non-init */ |
1716 | break; | |
84e9af1e | 1717 | |
28247076 | 1718 | case SIGPWR: |
67445f4e | 1719 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1720 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1721 | |
28247076 | 1722 | /* This is a nop on non-init */ |
84e9af1e | 1723 | break; |
6632c602 | 1724 | |
1005d14f | 1725 | case SIGUSR1: { |
57ee42ce LP |
1726 | Unit *u; |
1727 | ||
1728 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1729 | ||
1730 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1731 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1732 | bus_init(m, true); |
57ee42ce LP |
1733 | } |
1734 | ||
1735 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1736 | log_info("Loading D-Bus service..."); | |
7d793605 | 1737 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1738 | } |
1739 | ||
1740 | break; | |
1741 | } | |
1742 | ||
2149e37c | 1743 | case SIGUSR2: { |
718db961 LP |
1744 | _cleanup_free_ char *dump = NULL; |
1745 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1746 | size_t size; |
1747 | ||
718db961 LP |
1748 | f = open_memstream(&dump, &size); |
1749 | if (!f) { | |
2149e37c LP |
1750 | log_warning("Failed to allocate memory stream."); |
1751 | break; | |
1752 | } | |
1753 | ||
1754 | manager_dump_units(m, f, "\t"); | |
1755 | manager_dump_jobs(m, f, "\t"); | |
1756 | ||
1757 | if (ferror(f)) { | |
2149e37c LP |
1758 | log_warning("Failed to write status stream"); |
1759 | break; | |
1760 | } | |
1761 | ||
b2cdc666 DM |
1762 | if (fflush(f)) { |
1763 | log_warning("Failed to flush status stream"); | |
1764 | break; | |
1765 | } | |
1766 | ||
2149e37c | 1767 | log_dump(LOG_INFO, dump); |
1005d14f | 1768 | break; |
2149e37c | 1769 | } |
1005d14f | 1770 | |
a16e1123 LP |
1771 | case SIGHUP: |
1772 | m->exit_code = MANAGER_RELOAD; | |
1773 | break; | |
1774 | ||
7d793605 | 1775 | default: { |
253ee27a | 1776 | |
0003d1ab LP |
1777 | /* Starting SIGRTMIN+0 */ |
1778 | static const char * const target_table[] = { | |
7d793605 LP |
1779 | [0] = SPECIAL_DEFAULT_TARGET, |
1780 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1781 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1782 | [3] = SPECIAL_HALT_TARGET, |
1783 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1784 | [5] = SPECIAL_REBOOT_TARGET, |
1785 | [6] = SPECIAL_KEXEC_TARGET | |
1786 | }; | |
1787 | ||
1788 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1789 | static const ManagerExitCode code_table[] = { | |
1790 | [0] = MANAGER_HALT, | |
1791 | [1] = MANAGER_POWEROFF, | |
1792 | [2] = MANAGER_REBOOT, | |
1793 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1794 | }; |
1795 | ||
1796 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1797 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1798 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1799 | manager_start_target(m, target_table[idx], | |
1800 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1801 | break; |
1802 | } | |
1803 | ||
0003d1ab LP |
1804 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1805 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1806 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1807 | break; | |
1808 | } | |
1809 | ||
0658666b LP |
1810 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1811 | ||
1812 | case 20: | |
1813 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1814 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1815 | break; |
1816 | ||
1817 | case 21: | |
1818 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1819 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1820 | break; |
1821 | ||
253ee27a LP |
1822 | case 22: |
1823 | log_set_max_level(LOG_DEBUG); | |
1824 | log_notice("Setting log level to debug."); | |
1825 | break; | |
1826 | ||
1827 | case 23: | |
1828 | log_set_max_level(LOG_INFO); | |
1829 | log_notice("Setting log level to info."); | |
1830 | break; | |
1831 | ||
600b704e LP |
1832 | case 24: |
1833 | if (m->running_as == SYSTEMD_USER) { | |
1834 | m->exit_code = MANAGER_EXIT; | |
1835 | return 0; | |
1836 | } | |
1837 | ||
1838 | /* This is a nop on init */ | |
1839 | break; | |
1840 | ||
4cfa2c99 | 1841 | case 26: |
c1dc6153 | 1842 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ |
4cfa2c99 LP |
1843 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
1844 | log_notice("Setting log target to journal-or-kmsg."); | |
1845 | break; | |
1846 | ||
253ee27a LP |
1847 | case 27: |
1848 | log_set_target(LOG_TARGET_CONSOLE); | |
1849 | log_notice("Setting log target to console."); | |
1850 | break; | |
1851 | ||
1852 | case 28: | |
1853 | log_set_target(LOG_TARGET_KMSG); | |
1854 | log_notice("Setting log target to kmsg."); | |
1855 | break; | |
1856 | ||
0658666b | 1857 | default: |
4e240ab0 | 1858 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1859 | } |
b9cd2ec1 | 1860 | } |
7d793605 | 1861 | } |
9152c765 LP |
1862 | } |
1863 | ||
1864 | if (sigchld) | |
7b77ed8c | 1865 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1866 | |
1867 | return 0; | |
1868 | } | |
1869 | ||
718db961 LP |
1870 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1871 | Manager *m = userdata; | |
1872 | Iterator i; | |
1873 | Unit *u; | |
034c6ed7 LP |
1874 | |
1875 | assert(m); | |
718db961 | 1876 | assert(m->time_change_fd == fd); |
034c6ed7 | 1877 | |
718db961 LP |
1878 | log_struct(LOG_INFO, |
1879 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1880 | "MESSAGE=Time has been changed", | |
1881 | NULL); | |
034c6ed7 | 1882 | |
718db961 LP |
1883 | /* Restart the watch */ |
1884 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
03e334a1 | 1885 | m->time_change_fd = safe_close(m->time_change_fd); |
ef734fd6 | 1886 | |
718db961 | 1887 | manager_setup_time_change(m); |
4e434314 | 1888 | |
718db961 LP |
1889 | HASHMAP_FOREACH(u, m->units, i) |
1890 | if (UNIT_VTABLE(u)->time_change) | |
1891 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1892 | |
718db961 LP |
1893 | return 0; |
1894 | } | |
ea430986 | 1895 | |
718db961 LP |
1896 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1897 | Manager *m = userdata; | |
8742514c | 1898 | |
718db961 LP |
1899 | assert(m); |
1900 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1901 | |
718db961 | 1902 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1903 | |
718db961 LP |
1904 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1905 | manager_close_idle_pipe(m); | |
03b717a3 | 1906 | |
718db961 LP |
1907 | return 0; |
1908 | } | |
31a7eb86 | 1909 | |
718db961 LP |
1910 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1911 | Manager *m = userdata; | |
fd08a840 ZJS |
1912 | int r; |
1913 | uint64_t next; | |
31a7eb86 | 1914 | |
718db961 | 1915 | assert(m); |
fd08a840 | 1916 | assert(source); |
9152c765 | 1917 | |
718db961 | 1918 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1919 | |
1920 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1921 | r = sd_event_source_set_time(source, next); | |
1922 | if (r < 0) | |
1923 | return r; | |
1924 | ||
1925 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1926 | } |
1927 | ||
1928 | int manager_loop(Manager *m) { | |
1929 | int r; | |
9152c765 | 1930 | |
fac9f8df | 1931 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1932 | |
9152c765 | 1933 | assert(m); |
f755e3b7 | 1934 | m->exit_code = MANAGER_OK; |
9152c765 | 1935 | |
fe51822e LP |
1936 | /* Release the path cache */ |
1937 | set_free_free(m->unit_path_cache); | |
1938 | m->unit_path_cache = NULL; | |
1939 | ||
b0c918b9 LP |
1940 | manager_check_finished(m); |
1941 | ||
a4312405 | 1942 | /* There might still be some zombies hanging around from |
f3669545 | 1943 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1944 | r = manager_dispatch_sigchld(m); |
1945 | if (r < 0) | |
a4312405 LP |
1946 | return r; |
1947 | ||
f755e3b7 | 1948 | while (m->exit_code == MANAGER_OK) { |
718db961 | 1949 | usec_t wait_usec; |
9152c765 | 1950 | |
67445f4e | 1951 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1952 | watchdog_ping(); |
1953 | ||
ea430986 LP |
1954 | if (!ratelimit_test(&rl)) { |
1955 | /* Yay, something is going seriously wrong, pause a little */ | |
1956 | log_warning("Looping too fast. Throttling execution a little."); | |
1957 | sleep(1); | |
e96d6be7 | 1958 | continue; |
ea430986 LP |
1959 | } |
1960 | ||
37a8e683 | 1961 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1962 | continue; |
1963 | ||
cf1265e1 | 1964 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1965 | continue; |
1966 | ||
cf1265e1 | 1967 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1968 | continue; |
034c6ed7 | 1969 | |
cf1265e1 | 1970 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1971 | continue; |
1972 | ||
c1e1601e | 1973 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1974 | continue; |
ea430986 | 1975 | |
c757a65b | 1976 | /* Sleep for half the watchdog time */ |
67445f4e | 1977 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1978 | wait_usec = m->runtime_watchdog / 2; |
1979 | if (wait_usec <= 0) | |
1980 | wait_usec = 1; | |
c757a65b | 1981 | } else |
3a43da28 | 1982 | wait_usec = USEC_INFINITY; |
9152c765 | 1983 | |
718db961 LP |
1984 | r = sd_event_run(m->event, wait_usec); |
1985 | if (r < 0) { | |
1986 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1987 | return r; |
718db961 | 1988 | } |
a16e1123 | 1989 | } |
957ca890 | 1990 | |
a16e1123 | 1991 | return m->exit_code; |
83c60c9f | 1992 | } |
ea430986 | 1993 | |
718db961 | 1994 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1995 | _cleanup_free_ char *n = NULL; |
ea430986 | 1996 | Unit *u; |
80fbf05e | 1997 | int r; |
ea430986 LP |
1998 | |
1999 | assert(m); | |
2000 | assert(s); | |
2001 | assert(_u); | |
2002 | ||
ede3a796 LP |
2003 | r = unit_name_from_dbus_path(s, &n); |
2004 | if (r < 0) | |
2005 | return r; | |
ea430986 | 2006 | |
80fbf05e | 2007 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
2008 | if (r < 0) |
2009 | return r; | |
ea430986 LP |
2010 | |
2011 | *_u = u; | |
2012 | ||
2013 | return 0; | |
2014 | } | |
86fbf370 LP |
2015 | |
2016 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 2017 | const char *p; |
86fbf370 | 2018 | unsigned id; |
718db961 | 2019 | Job *j; |
86fbf370 LP |
2020 | int r; |
2021 | ||
2022 | assert(m); | |
2023 | assert(s); | |
2024 | assert(_j); | |
2025 | ||
718db961 LP |
2026 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
2027 | if (!p) | |
86fbf370 LP |
2028 | return -EINVAL; |
2029 | ||
718db961 | 2030 | r = safe_atou(p, &id); |
8742514c | 2031 | if (r < 0) |
86fbf370 LP |
2032 | return r; |
2033 | ||
8742514c LP |
2034 | j = manager_get_job(m, id); |
2035 | if (!j) | |
86fbf370 LP |
2036 | return -ENOENT; |
2037 | ||
2038 | *_j = j; | |
2039 | ||
2040 | return 0; | |
2041 | } | |
dfcd764e | 2042 | |
4927fcae | 2043 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 2044 | |
4927fcae | 2045 | #ifdef HAVE_AUDIT |
2ba11090 | 2046 | _cleanup_free_ char *p = NULL; |
0aa281df | 2047 | const char *msg; |
c1165f82 | 2048 | int audit_fd; |
e537352b | 2049 | |
c1165f82 LP |
2050 | audit_fd = get_audit_fd(); |
2051 | if (audit_fd < 0) | |
e537352b LP |
2052 | return; |
2053 | ||
bbd3a7ba LP |
2054 | /* Don't generate audit events if the service was already |
2055 | * started and we're just deserializing */ | |
a7556052 | 2056 | if (m->n_reloading > 0) |
bbd3a7ba LP |
2057 | return; |
2058 | ||
67445f4e | 2059 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2060 | return; |
2061 | ||
ac155bb8 | 2062 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
2063 | return; |
2064 | ||
bd0af849 ZJS |
2065 | p = unit_name_to_prefix_and_instance(u->id); |
2066 | if (!p) { | |
0aa281df | 2067 | log_oom(); |
e537352b LP |
2068 | return; |
2069 | } | |
2070 | ||
0aa281df LP |
2071 | msg = strappenda("unit=", p); |
2072 | ||
2073 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { | |
2074 | if (errno == EPERM) | |
391ade86 | 2075 | /* We aren't allowed to send audit messages? |
44785992 | 2076 | * Then let's not retry again. */ |
c1165f82 | 2077 | close_audit_fd(); |
0aa281df | 2078 | else |
44785992 | 2079 | log_warning("Failed to send audit message: %m"); |
391ade86 | 2080 | } |
4927fcae | 2081 | #endif |
e537352b | 2082 | |
e537352b LP |
2083 | } |
2084 | ||
e983b760 | 2085 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1d749d04 | 2086 | union sockaddr_union sa = PLYMOUTH_SOCKET; |
2ba11090 | 2087 | |
e983b760 | 2088 | int n = 0; |
2ba11090 ZJS |
2089 | _cleanup_free_ char *message = NULL; |
2090 | _cleanup_close_ int fd = -1; | |
e983b760 LP |
2091 | |
2092 | /* Don't generate plymouth events if the service was already | |
2093 | * started and we're just deserializing */ | |
a7556052 | 2094 | if (m->n_reloading > 0) |
e983b760 LP |
2095 | return; |
2096 | ||
67445f4e | 2097 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
2098 | return; |
2099 | ||
3772995a LP |
2100 | if (detect_container(NULL) > 0) |
2101 | return; | |
2102 | ||
ac155bb8 MS |
2103 | if (u->type != UNIT_SERVICE && |
2104 | u->type != UNIT_MOUNT && | |
2105 | u->type != UNIT_SWAP) | |
e983b760 LP |
2106 | return; |
2107 | ||
2108 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
2109 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
2110 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
2111 | if (fd < 0) { | |
e983b760 LP |
2112 | log_error("socket() failed: %m"); |
2113 | return; | |
2114 | } | |
2115 | ||
96707269 | 2116 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
e983b760 | 2117 | |
2ba11090 | 2118 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
e983b760 | 2119 | log_error("connect() failed: %m"); |
2ba11090 | 2120 | return; |
e983b760 LP |
2121 | } |
2122 | ||
ac155bb8 | 2123 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2124 | log_oom(); |
2ba11090 | 2125 | return; |
e983b760 LP |
2126 | } |
2127 | ||
2128 | errno = 0; | |
2ba11090 ZJS |
2129 | if (write(fd, message, n + 1) != n + 1) |
2130 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
e983b760 | 2131 | log_error("Failed to write Plymouth message: %m"); |
e983b760 LP |
2132 | } |
2133 | ||
05e343b7 LP |
2134 | void manager_dispatch_bus_name_owner_changed( |
2135 | Manager *m, | |
2136 | const char *name, | |
2137 | const char* old_owner, | |
2138 | const char *new_owner) { | |
2139 | ||
2140 | Unit *u; | |
2141 | ||
2142 | assert(m); | |
2143 | assert(name); | |
2144 | ||
718db961 LP |
2145 | u = hashmap_get(m->watch_bus, name); |
2146 | if (!u) | |
05e343b7 LP |
2147 | return; |
2148 | ||
2149 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2150 | } | |
2151 | ||
d8d5ab98 | 2152 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2153 | const char *path; |
df28bc08 | 2154 | int fd = -1; |
a16e1123 LP |
2155 | FILE *f; |
2156 | ||
2157 | assert(_f); | |
2158 | ||
8e33886e ZJS |
2159 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2160 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2161 | if (fd < 0) |
a16e1123 | 2162 | return -errno; |
a16e1123 | 2163 | |
a16e1123 | 2164 | log_debug("Serializing state to %s", path); |
a16e1123 | 2165 | |
01e10de3 | 2166 | f = fdopen(fd, "w+"); |
d86f9d52 | 2167 | if (!f) { |
03e334a1 | 2168 | safe_close(fd); |
a16e1123 | 2169 | return -errno; |
d86f9d52 | 2170 | } |
a16e1123 LP |
2171 | |
2172 | *_f = f; | |
2173 | ||
2174 | return 0; | |
2175 | } | |
2176 | ||
b3680f49 | 2177 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2178 | Iterator i; |
2179 | Unit *u; | |
2180 | const char *t; | |
4a9fd066 | 2181 | char **e; |
a16e1123 LP |
2182 | int r; |
2183 | ||
2184 | assert(m); | |
2185 | assert(f); | |
2186 | assert(fds); | |
2187 | ||
a7556052 | 2188 | m->n_reloading ++; |
38c52d46 | 2189 | |
01d67b43 LP |
2190 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2191 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2192 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2193 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2194 | |
915b3753 | 2195 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2196 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2197 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2198 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2199 | |
26a1efdf | 2200 | if (!in_initrd()) { |
915b3753 | 2201 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2202 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2203 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2204 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2205 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2206 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2207 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2208 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2209 | } |
47a483a1 | 2210 | |
b3680f49 HH |
2211 | if (!switching_root) { |
2212 | STRV_FOREACH(e, m->environment) { | |
2213 | _cleanup_free_ char *ce; | |
4a9fd066 | 2214 | |
b3680f49 | 2215 | ce = cescape(*e); |
e3dd987c LP |
2216 | if (!ce) |
2217 | return -ENOMEM; | |
2218 | ||
2219 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2220 | } |
4a9fd066 OS |
2221 | } |
2222 | ||
d86f9d52 LP |
2223 | if (m->notify_fd >= 0) { |
2224 | int copy; | |
2225 | ||
2226 | copy = fdset_put_dup(fds, m->notify_fd); | |
2227 | if (copy < 0) | |
2228 | return copy; | |
2229 | ||
2230 | fprintf(f, "notify-fd=%i\n", copy); | |
2231 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2232 | } | |
2233 | ||
e3dd987c LP |
2234 | if (m->kdbus_fd >= 0) { |
2235 | int copy; | |
2236 | ||
2237 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2238 | if (copy < 0) | |
2239 | return copy; | |
2240 | ||
2241 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2242 | } | |
2243 | ||
8f8f05a9 | 2244 | bus_track_serialize(m->subscribed, f); |
6fa48533 | 2245 | |
f2382a94 LP |
2246 | fputc('\n', f); |
2247 | ||
a16e1123 | 2248 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2249 | if (u->id != t) |
a16e1123 LP |
2250 | continue; |
2251 | ||
a16e1123 | 2252 | /* Start marker */ |
ac155bb8 | 2253 | fputs(u->id, f); |
a16e1123 LP |
2254 | fputc('\n', f); |
2255 | ||
6fa48533 LP |
2256 | r = unit_serialize(u, f, fds, !switching_root); |
2257 | if (r < 0) { | |
a7556052 | 2258 | m->n_reloading --; |
a16e1123 | 2259 | return r; |
38c52d46 | 2260 | } |
a16e1123 LP |
2261 | } |
2262 | ||
a7556052 LP |
2263 | assert(m->n_reloading > 0); |
2264 | m->n_reloading --; | |
38c52d46 | 2265 | |
a16e1123 LP |
2266 | if (ferror(f)) |
2267 | return -EIO; | |
2268 | ||
b23de6af LP |
2269 | r = bus_fdset_add_all(m, fds); |
2270 | if (r < 0) | |
2271 | return r; | |
2272 | ||
a16e1123 LP |
2273 | return 0; |
2274 | } | |
2275 | ||
2276 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2277 | int r = 0; | |
2278 | ||
2279 | assert(m); | |
2280 | assert(f); | |
2281 | ||
2282 | log_debug("Deserializing state..."); | |
2283 | ||
a7556052 | 2284 | m->n_reloading ++; |
82c64bf5 | 2285 | |
10f8e83c | 2286 | for (;;) { |
20c03b7b | 2287 | char line[LINE_MAX], *l; |
10f8e83c LP |
2288 | |
2289 | if (!fgets(line, sizeof(line), f)) { | |
2290 | if (feof(f)) | |
2291 | r = 0; | |
2292 | else | |
2293 | r = -errno; | |
2294 | ||
2295 | goto finish; | |
2296 | } | |
2297 | ||
2298 | char_array_0(line); | |
2299 | l = strstrip(line); | |
2300 | ||
2301 | if (l[0] == 0) | |
2302 | break; | |
2303 | ||
01d67b43 LP |
2304 | if (startswith(l, "current-job-id=")) { |
2305 | uint32_t id; | |
2306 | ||
2307 | if (safe_atou32(l+15, &id) < 0) | |
46849c3f | 2308 | log_warning("Failed to parse current job id value %s", l+15); |
01d67b43 LP |
2309 | else |
2310 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2311 | |
33c5fae9 LP |
2312 | } else if (startswith(l, "n-installed-jobs=")) { |
2313 | uint32_t n; | |
2314 | ||
2315 | if (safe_atou32(l+17, &n) < 0) | |
46849c3f | 2316 | log_warning("Failed to parse installed jobs counter %s", l+17); |
33c5fae9 LP |
2317 | else |
2318 | m->n_installed_jobs += n; | |
718db961 | 2319 | |
33c5fae9 LP |
2320 | } else if (startswith(l, "n-failed-jobs=")) { |
2321 | uint32_t n; | |
2322 | ||
2323 | if (safe_atou32(l+14, &n) < 0) | |
46849c3f | 2324 | log_warning("Failed to parse failed jobs counter %s", l+14); |
33c5fae9 LP |
2325 | else |
2326 | m->n_failed_jobs += n; | |
718db961 | 2327 | |
01d67b43 LP |
2328 | } else if (startswith(l, "taint-usr=")) { |
2329 | int b; | |
2330 | ||
e3dd987c LP |
2331 | b = parse_boolean(l+10); |
2332 | if (b < 0) | |
46849c3f | 2333 | log_warning("Failed to parse taint /usr flag %s", l+10); |
01d67b43 LP |
2334 | else |
2335 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2336 | |
915b3753 LP |
2337 | } else if (startswith(l, "firmware-timestamp=")) |
2338 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2339 | else if (startswith(l, "loader-timestamp=")) | |
2340 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2341 | else if (startswith(l, "kernel-timestamp=")) | |
2342 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2343 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2344 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2345 | else if (startswith(l, "userspace-timestamp=")) |
2346 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2347 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2348 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2349 | else if (startswith(l, "security-start-timestamp=")) |
2350 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2351 | else if (startswith(l, "security-finish-timestamp=")) | |
2352 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2353 | else if (startswith(l, "generators-start-timestamp=")) | |
2354 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2355 | else if (startswith(l, "generators-finish-timestamp=")) | |
2356 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2357 | else if (startswith(l, "units-load-start-timestamp=")) | |
2358 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2359 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2360 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2361 | else if (startswith(l, "env=")) { |
2362 | _cleanup_free_ char *uce = NULL; | |
2363 | char **e; | |
2364 | ||
2365 | uce = cunescape(l+4); | |
2366 | if (!uce) { | |
2367 | r = -ENOMEM; | |
2368 | goto finish; | |
2369 | } | |
2370 | ||
2371 | e = strv_env_set(m->environment, uce); | |
2372 | if (!e) { | |
2373 | r = -ENOMEM; | |
2374 | goto finish; | |
2375 | } | |
2376 | ||
2377 | strv_free(m->environment); | |
2378 | m->environment = e; | |
e3dd987c | 2379 | |
d86f9d52 LP |
2380 | } else if (startswith(l, "notify-fd=")) { |
2381 | int fd; | |
2382 | ||
2383 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
46849c3f | 2384 | log_warning("Failed to parse notify fd: %s", l + 10); |
d86f9d52 | 2385 | else { |
03e334a1 LP |
2386 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
2387 | safe_close(m->notify_fd); | |
d86f9d52 LP |
2388 | m->notify_fd = fdset_remove(fds, fd); |
2389 | } | |
2390 | ||
2391 | } else if (startswith(l, "notify-socket=")) { | |
2392 | char *n; | |
2393 | ||
2394 | n = strdup(l+14); | |
2395 | if (!n) { | |
2396 | r = -ENOMEM; | |
2397 | goto finish; | |
2398 | } | |
2399 | ||
2400 | free(m->notify_socket); | |
2401 | m->notify_socket = n; | |
2402 | ||
e3dd987c LP |
2403 | } else if (startswith(l, "kdbus-fd=")) { |
2404 | int fd; | |
2405 | ||
8bf9fcf4 | 2406 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
46849c3f | 2407 | log_warning("Failed to parse kdbus fd: %s", l + 9); |
e3dd987c | 2408 | else { |
03e334a1 | 2409 | safe_close(m->kdbus_fd); |
e3dd987c LP |
2410 | m->kdbus_fd = fdset_remove(fds, fd); |
2411 | } | |
2412 | ||
f44b9efc | 2413 | } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) < 0) |
46849c3f | 2414 | log_warning("Unknown serialization item '%s'", l); |
10f8e83c LP |
2415 | } |
2416 | ||
a16e1123 LP |
2417 | for (;;) { |
2418 | Unit *u; | |
2419 | char name[UNIT_NAME_MAX+2]; | |
2420 | ||
2421 | /* Start marker */ | |
2422 | if (!fgets(name, sizeof(name), f)) { | |
2423 | if (feof(f)) | |
10f8e83c LP |
2424 | r = 0; |
2425 | else | |
2426 | r = -errno; | |
a16e1123 | 2427 | |
82c64bf5 | 2428 | goto finish; |
a16e1123 LP |
2429 | } |
2430 | ||
2431 | char_array_0(name); | |
2432 | ||
bd0af849 ZJS |
2433 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2434 | if (r < 0) | |
82c64bf5 | 2435 | goto finish; |
a16e1123 | 2436 | |
01e10de3 LP |
2437 | r = unit_deserialize(u, f, fds); |
2438 | if (r < 0) | |
82c64bf5 | 2439 | goto finish; |
a16e1123 LP |
2440 | } |
2441 | ||
10f8e83c | 2442 | finish: |
145b1f79 | 2443 | if (ferror(f)) |
82c64bf5 | 2444 | r = -EIO; |
a16e1123 | 2445 | |
a7556052 LP |
2446 | assert(m->n_reloading > 0); |
2447 | m->n_reloading --; | |
82c64bf5 LP |
2448 | |
2449 | return r; | |
a16e1123 LP |
2450 | } |
2451 | ||
2452 | int manager_reload(Manager *m) { | |
2453 | int r, q; | |
51d122af ZJS |
2454 | _cleanup_fclose_ FILE *f = NULL; |
2455 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2456 | |
2457 | assert(m); | |
2458 | ||
07719a21 LP |
2459 | r = manager_open_serialization(m, &f); |
2460 | if (r < 0) | |
a16e1123 LP |
2461 | return r; |
2462 | ||
a7556052 | 2463 | m->n_reloading ++; |
718db961 | 2464 | bus_manager_send_reloading(m, true); |
38c52d46 | 2465 | |
07719a21 LP |
2466 | fds = fdset_new(); |
2467 | if (!fds) { | |
a7556052 | 2468 | m->n_reloading --; |
51d122af | 2469 | return -ENOMEM; |
a16e1123 LP |
2470 | } |
2471 | ||
b3680f49 | 2472 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2473 | if (r < 0) { |
a7556052 | 2474 | m->n_reloading --; |
51d122af | 2475 | return r; |
38c52d46 | 2476 | } |
a16e1123 LP |
2477 | |
2478 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2479 | m->n_reloading --; |
51d122af | 2480 | return -errno; |
a16e1123 LP |
2481 | } |
2482 | ||
2483 | /* From here on there is no way back. */ | |
2484 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2485 | manager_undo_generators(m); |
84e3543e | 2486 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2487 | |
07719a21 | 2488 | /* Find new unit paths */ |
5a1e9937 LP |
2489 | manager_run_generators(m); |
2490 | ||
07719a21 LP |
2491 | q = lookup_paths_init( |
2492 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 2493 | NULL, |
07719a21 LP |
2494 | m->generator_unit_path, |
2495 | m->generator_unit_path_early, | |
2496 | m->generator_unit_path_late); | |
2497 | if (q < 0) | |
2498 | r = q; | |
2499 | ||
5a1e9937 LP |
2500 | manager_build_unit_path_cache(m); |
2501 | ||
a16e1123 | 2502 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2503 | q = manager_enumerate(m); |
2504 | if (q < 0) | |
a16e1123 LP |
2505 | r = q; |
2506 | ||
2507 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2508 | q = manager_deserialize(m, f, fds); |
2509 | if (q < 0) | |
a16e1123 LP |
2510 | r = q; |
2511 | ||
2512 | fclose(f); | |
2513 | f = NULL; | |
2514 | ||
a2cc4a6c ZJS |
2515 | /* Re-register notify_fd as event source */ |
2516 | q = manager_setup_notify(m); | |
2517 | if (q < 0) | |
2518 | r = q; | |
2519 | ||
a16e1123 | 2520 | /* Third, fire things up! */ |
07719a21 LP |
2521 | q = manager_coldplug(m); |
2522 | if (q < 0) | |
a16e1123 LP |
2523 | r = q; |
2524 | ||
a7556052 LP |
2525 | assert(m->n_reloading > 0); |
2526 | m->n_reloading--; | |
9f611ad8 | 2527 | |
71445ae7 LP |
2528 | m->send_reloading_done = true; |
2529 | ||
a16e1123 LP |
2530 | return r; |
2531 | } | |
2532 | ||
c17ec25e MS |
2533 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2534 | assert(m); | |
2535 | ||
2536 | return m->n_reloading != 0; | |
2537 | } | |
2538 | ||
fdf20a31 | 2539 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2540 | Unit *u; |
2541 | Iterator i; | |
2542 | ||
2543 | assert(m); | |
2544 | ||
2545 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2546 | unit_reset_failed(u); |
5632e374 LP |
2547 | } |
2548 | ||
31afa0a4 | 2549 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2550 | Unit *u; |
2551 | ||
2552 | assert(m); | |
2553 | assert(name); | |
2554 | ||
2555 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2556 | u = manager_get_unit(m, name); |
2557 | if (!u) | |
8f6df3fa LP |
2558 | return true; |
2559 | ||
31afa0a4 | 2560 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2561 | } |
2562 | ||
56dacdbc | 2563 | static void manager_notify_finished(Manager *m) { |
7ceba241 | 2564 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2565 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 | 2566 | |
56dacdbc | 2567 | if (m->test_run) |
b0c918b9 LP |
2568 | return; |
2569 | ||
67445f4e | 2570 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2571 | |
915b3753 LP |
2572 | /* Note that m->kernel_usec.monotonic is always at 0, |
2573 | * and m->firmware_usec.monotonic and | |
2574 | * m->loader_usec.monotonic should be considered | |
2575 | * negative values. */ | |
2576 | ||
7ceba241 LP |
2577 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2578 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2579 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2580 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2581 | |
e9ddabc2 | 2582 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2583 | |
915b3753 LP |
2584 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2585 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2586 | |
e12919e8 LP |
2587 | log_struct(LOG_INFO, |
2588 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), | |
2589 | "KERNEL_USEC="USEC_FMT, kernel_usec, | |
2590 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2591 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
2592 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2593 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2594 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2595 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2596 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
2597 | NULL); | |
18fa6b27 | 2598 | } else { |
915b3753 | 2599 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2600 | initrd_usec = 0; |
2601 | ||
81270860 | 2602 | log_struct(LOG_INFO, |
1ca6783f | 2603 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
e12919e8 | 2604 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
ccd06097 | 2605 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
e12919e8 LP |
2606 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2607 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2608 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2fa4092c | 2609 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2610 | NULL); |
e12919e8 LP |
2611 | } |
2612 | } else { | |
2613 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; | |
2614 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2615 | ||
2616 | log_struct(LOG_INFO, | |
2617 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), | |
2618 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
2619 | "MESSAGE=Startup finished in %s.", | |
2620 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
2621 | NULL); | |
18fa6b27 | 2622 | } |
b0c918b9 | 2623 | |
718db961 | 2624 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2625 | |
2626 | sd_notifyf(false, | |
af4ec430 LP |
2627 | "READY=1\n" |
2628 | "STATUS=Startup finished in %s.", | |
2fa4092c | 2629 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2630 | } |
2631 | ||
56dacdbc ZJS |
2632 | void manager_check_finished(Manager *m) { |
2633 | Unit *u = NULL; | |
2634 | Iterator i; | |
2635 | ||
2636 | assert(m); | |
2637 | ||
2638 | if (m->n_running_jobs == 0) | |
2639 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); | |
2640 | ||
2641 | if (hashmap_size(m->jobs) > 0) { | |
2642 | ||
2643 | if (m->jobs_in_progress_event_source) | |
2644 | sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
2645 | ||
2646 | return; | |
2647 | } | |
2648 | ||
2649 | manager_flip_auto_status(m, false); | |
2650 | ||
2651 | /* Notify Type=idle units that we are done now */ | |
2652 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); | |
2653 | manager_close_idle_pipe(m); | |
2654 | ||
2655 | /* Turn off confirm spawn now */ | |
2656 | m->confirm_spawn = false; | |
2657 | ||
2658 | /* No need to update ask password status when we're going non-interactive */ | |
2659 | manager_close_ask_password(m); | |
2660 | ||
2661 | /* This is no longer the first boot */ | |
2662 | manager_set_first_boot(m, false); | |
2663 | ||
2664 | if (dual_timestamp_is_set(&m->finish_timestamp)) | |
2665 | return; | |
2666 | ||
2667 | dual_timestamp_get(&m->finish_timestamp); | |
2668 | ||
2669 | manager_notify_finished(m); | |
2670 | ||
2671 | SET_FOREACH(u, m->startup_units, i) | |
2672 | if (u->cgroup_path) | |
2673 | cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m)); | |
2674 | } | |
2675 | ||
07719a21 LP |
2676 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2677 | char *p; | |
2678 | int r; | |
2679 | ||
2680 | assert(m); | |
2681 | assert(generator); | |
2682 | assert(name); | |
2683 | ||
2684 | if (*generator) | |
2685 | return 0; | |
2686 | ||
67445f4e | 2687 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2688 | /* systemd --system, not running --test */ |
07719a21 LP |
2689 | |
2690 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2691 | if (!p) |
2692 | return log_oom(); | |
07719a21 | 2693 | |
fcc81ea3 KS |
2694 | r = mkdir_p_label(p, 0755); |
2695 | if (r < 0) { | |
2696 | log_error("Failed to create generator directory %s: %s", | |
2697 | p, strerror(-r)); | |
2698 | free(p); | |
2699 | return r; | |
2700 | } | |
2701 | } else if (m->running_as == SYSTEMD_USER) { | |
2702 | const char *s = NULL; | |
2703 | ||
2704 | s = getenv("XDG_RUNTIME_DIR"); | |
2705 | if (!s) | |
2706 | return -EINVAL; | |
2707 | p = strjoin(s, "/systemd/", name, NULL); | |
2708 | if (!p) | |
2709 | return log_oom(); | |
2710 | ||
d2e54fae | 2711 | r = mkdir_p_label(p, 0755); |
07719a21 | 2712 | if (r < 0) { |
7ad94c71 ZJS |
2713 | log_error("Failed to create generator directory %s: %s", |
2714 | p, strerror(-r)); | |
07719a21 LP |
2715 | free(p); |
2716 | return r; | |
2717 | } | |
2718 | } else { | |
fcc81ea3 KS |
2719 | /* systemd --system --test */ |
2720 | ||
b7def684 | 2721 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2722 | if (!p) |
2723 | return log_oom(); | |
07719a21 LP |
2724 | |
2725 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2726 | log_error("Failed to create generator directory %s: %m", |
2727 | p); | |
34bf0281 | 2728 | free(p); |
07719a21 LP |
2729 | return -errno; |
2730 | } | |
2731 | } | |
2732 | ||
2733 | *generator = p; | |
2734 | return 0; | |
2735 | } | |
2736 | ||
2737 | static void trim_generator_dir(Manager *m, char **generator) { | |
2738 | assert(m); | |
2739 | assert(generator); | |
2740 | ||
2741 | if (!*generator) | |
2742 | return; | |
2743 | ||
2744 | if (rmdir(*generator) >= 0) { | |
2745 | free(*generator); | |
2746 | *generator = NULL; | |
2747 | } | |
2748 | ||
2749 | return; | |
2750 | } | |
2751 | ||
5a1e9937 | 2752 | void manager_run_generators(Manager *m) { |
718db961 | 2753 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2754 | const char *generator_path; |
07719a21 | 2755 | const char *argv[5]; |
07719a21 | 2756 | int r; |
5a1e9937 LP |
2757 | |
2758 | assert(m); | |
2759 | ||
0d8c31ff ZJS |
2760 | if (m->test_run) |
2761 | return; | |
2762 | ||
67445f4e | 2763 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2764 | d = opendir(generator_path); |
2765 | if (!d) { | |
5a1e9937 LP |
2766 | if (errno == ENOENT) |
2767 | return; | |
2768 | ||
7ad94c71 ZJS |
2769 | log_error("Failed to enumerate generator directory %s: %m", |
2770 | generator_path); | |
5a1e9937 LP |
2771 | return; |
2772 | } | |
2773 | ||
07719a21 LP |
2774 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2775 | if (r < 0) | |
2776 | goto finish; | |
f1d19aa4 | 2777 | |
07719a21 LP |
2778 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2779 | if (r < 0) | |
2780 | goto finish; | |
5a1e9937 | 2781 | |
07719a21 LP |
2782 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2783 | if (r < 0) | |
2784 | goto finish; | |
5a1e9937 | 2785 | |
83cc030f LP |
2786 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2787 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2788 | argv[2] = m->generator_unit_path_early; |
2789 | argv[3] = m->generator_unit_path_late; | |
2790 | argv[4] = NULL; | |
5a1e9937 | 2791 | |
718db961 | 2792 | RUN_WITH_UMASK(0022) |
e2680723 | 2793 | execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv); |
5a1e9937 | 2794 | |
718db961 | 2795 | finish: |
07719a21 LP |
2796 | trim_generator_dir(m, &m->generator_unit_path); |
2797 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2798 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2799 | } |
2800 | ||
07719a21 | 2801 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2802 | assert(m); |
07719a21 | 2803 | assert(generator); |
5a1e9937 | 2804 | |
07719a21 | 2805 | if (!*generator) |
5a1e9937 LP |
2806 | return; |
2807 | ||
07719a21 LP |
2808 | strv_remove(m->lookup_paths.unit_path, *generator); |
2809 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2810 | |
07719a21 LP |
2811 | free(*generator); |
2812 | *generator = NULL; | |
2813 | } | |
2814 | ||
2815 | void manager_undo_generators(Manager *m) { | |
2816 | assert(m); | |
2817 | ||
2818 | remove_generator_dir(m, &m->generator_unit_path); | |
2819 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2820 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2821 | } |
2822 | ||
718db961 LP |
2823 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2824 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2825 | assert(m); |
bcd8e6d1 | 2826 | |
718db961 | 2827 | l = m->environment; |
bcd8e6d1 | 2828 | |
718db961 LP |
2829 | if (!strv_isempty(minus)) { |
2830 | a = strv_env_delete(l, 1, minus); | |
2831 | if (!a) | |
2832 | return -ENOMEM; | |
2833 | ||
2834 | l = a; | |
2835 | } | |
2836 | ||
2837 | if (!strv_isempty(plus)) { | |
2838 | b = strv_env_merge(2, l, plus); | |
aa9f8a30 AH |
2839 | if (!b) { |
2840 | strv_free(a); | |
718db961 | 2841 | return -ENOMEM; |
aa9f8a30 | 2842 | } |
bcd8e6d1 | 2843 | |
718db961 LP |
2844 | l = b; |
2845 | } | |
2846 | ||
2847 | if (m->environment != l) | |
2848 | strv_free(m->environment); | |
2849 | if (a != l) | |
2850 | strv_free(a); | |
2851 | if (b != l) | |
2852 | strv_free(b); | |
2853 | ||
f069efb4 LP |
2854 | m->environment = l; |
2855 | manager_clean_environment(m); | |
2856 | strv_sort(m->environment); | |
2857 | ||
97d0e5f8 UTL |
2858 | return 0; |
2859 | } | |
2860 | ||
c93ff2e9 FC |
2861 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2862 | int i; | |
2863 | ||
2864 | assert(m); | |
2865 | ||
517d56b1 | 2866 | for (i = 0; i < _RLIMIT_MAX; i++) { |
07719a21 LP |
2867 | if (!default_rlimit[i]) |
2868 | continue; | |
c93ff2e9 | 2869 | |
07719a21 LP |
2870 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2871 | if (!m->rlimit[i]) | |
2872 | return -ENOMEM; | |
c93ff2e9 FC |
2873 | } |
2874 | ||
2875 | return 0; | |
2876 | } | |
2877 | ||
4cfa2c99 | 2878 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2879 | Unit *u; |
2880 | ||
2881 | assert(m); | |
2882 | ||
67445f4e | 2883 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2884 | return; |
2885 | ||
731a676c LP |
2886 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2887 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2888 | log_close_journal(); |
731a676c | 2889 | return; |
f1dd0c3f LP |
2890 | } |
2891 | ||
731a676c LP |
2892 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2893 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2894 | log_close_journal(); |
731a676c LP |
2895 | return; |
2896 | } | |
f1dd0c3f | 2897 | |
731a676c LP |
2898 | /* Hmm, OK, so the socket is fully up and the service is up |
2899 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2900 | log_open(); |
2901 | } | |
2902 | ||
d450b6f2 | 2903 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2904 | assert(m); |
d450b6f2 | 2905 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2906 | |
67445f4e | 2907 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2908 | return; |
2909 | ||
d450b6f2 | 2910 | m->show_status = mode; |
27d340c7 | 2911 | |
d450b6f2 | 2912 | if (mode > 0) |
27d340c7 LP |
2913 | touch("/run/systemd/show-status"); |
2914 | else | |
2915 | unlink("/run/systemd/show-status"); | |
2916 | } | |
2917 | ||
127d5fd1 | 2918 | static bool manager_get_show_status(Manager *m, StatusType type) { |
27d340c7 LP |
2919 | assert(m); |
2920 | ||
67445f4e | 2921 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2922 | return false; |
2923 | ||
31a7eb86 ZJS |
2924 | if (m->no_console_output) |
2925 | return false; | |
2926 | ||
d81afec1 | 2927 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
08510627 LP |
2928 | return false; |
2929 | ||
e46b13c8 | 2930 | /* If we cannot find out the status properly, just proceed. */ |
ebc5788e | 2931 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) |
e46b13c8 ZJS |
2932 | return false; |
2933 | ||
d450b6f2 | 2934 | if (m->show_status > 0) |
27d340c7 LP |
2935 | return true; |
2936 | ||
2937 | /* If Plymouth is running make sure we show the status, so | |
2938 | * that there's something nice to see when people press Esc */ | |
27d340c7 LP |
2939 | return plymouth_running(); |
2940 | } | |
68b29a9f | 2941 | |
e2680723 LP |
2942 | void manager_set_first_boot(Manager *m, bool b) { |
2943 | assert(m); | |
2944 | ||
2945 | if (m->running_as != SYSTEMD_SYSTEM) | |
2946 | return; | |
2947 | ||
2948 | m->first_boot = b; | |
2949 | ||
2950 | if (m->first_boot) | |
2951 | touch("/run/systemd/first-boot"); | |
2952 | else | |
2953 | unlink("/run/systemd/first-boot"); | |
2954 | } | |
2955 | ||
127d5fd1 | 2956 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { |
25cee550 MS |
2957 | va_list ap; |
2958 | ||
127d5fd1 | 2959 | if (!manager_get_show_status(m, type)) |
25cee550 MS |
2960 | return; |
2961 | ||
03b717a3 MS |
2962 | /* XXX We should totally drop the check for ephemeral here |
2963 | * and thus effectively make 'Type=idle' pointless. */ | |
127d5fd1 | 2964 | if (type == STATUS_TYPE_EPHEMERAL && m->n_on_console > 0) |
03b717a3 MS |
2965 | return; |
2966 | ||
25cee550 | 2967 | va_start(ap, format); |
127d5fd1 | 2968 | status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap); |
25cee550 MS |
2969 | va_end(ap); |
2970 | } | |
2971 | ||
a57f7e2c LP |
2972 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2973 | _cleanup_free_ char *p = NULL; | |
2974 | Unit *found; | |
2975 | ||
2976 | assert(m); | |
2977 | assert(path); | |
2978 | assert(suffix); | |
2979 | assert(_found); | |
2980 | ||
2981 | p = unit_name_from_path(path, suffix); | |
2982 | if (!p) | |
2983 | return -ENOMEM; | |
2984 | ||
2985 | found = manager_get_unit(m, p); | |
2986 | if (!found) { | |
2987 | *_found = NULL; | |
2988 | return 0; | |
2989 | } | |
2990 | ||
2991 | *_found = found; | |
2992 | return 1; | |
2993 | } | |
2994 | ||
2995 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2996 | char p[strlen(path)+1]; | |
2997 | ||
2998 | assert(m); | |
2999 | assert(path); | |
3000 | ||
3001 | strcpy(p, path); | |
3002 | path_kill_slashes(p); | |
3003 | ||
3004 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
3005 | } | |
e66cf1a3 LP |
3006 | |
3007 | const char *manager_get_runtime_prefix(Manager *m) { | |
f755e3b7 | 3008 | assert(m); |
e66cf1a3 LP |
3009 | |
3010 | return m->running_as == SYSTEMD_SYSTEM ? | |
3011 | "/run" : | |
3012 | getenv("XDG_RUNTIME_DIR"); | |
3013 | } | |
f755e3b7 LP |
3014 | |
3015 | ManagerState manager_state(Manager *m) { | |
3016 | Unit *u; | |
3017 | ||
3018 | assert(m); | |
3019 | ||
3020 | /* Did we ever finish booting? If not then we are still starting up */ | |
d81afec1 LP |
3021 | if (!dual_timestamp_is_set(&m->finish_timestamp)) { |
3022 | ||
3023 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3024 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3025 | return MANAGER_INITIALIZING; | |
3026 | ||
f755e3b7 | 3027 | return MANAGER_STARTING; |
d81afec1 | 3028 | } |
f755e3b7 LP |
3029 | |
3030 | /* Is the special shutdown target queued? If so, we are in shutdown state */ | |
3031 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
3032 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
3033 | return MANAGER_STOPPING; | |
3034 | ||
3035 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
3036 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
3037 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3038 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3039 | return MANAGER_MAINTENANCE; | |
3040 | ||
3041 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
3042 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3043 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3044 | return MANAGER_MAINTENANCE; | |
3045 | ||
3046 | /* Are there any failed units? If so, we are in degraded mode */ | |
3047 | if (set_size(m->failed_units) > 0) | |
3048 | return MANAGER_DEGRADED; | |
3049 | ||
3050 | return MANAGER_RUNNING; | |
3051 | } | |
3052 | ||
3053 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
d81afec1 | 3054 | [MANAGER_INITIALIZING] = "initializing", |
f755e3b7 LP |
3055 | [MANAGER_STARTING] = "starting", |
3056 | [MANAGER_RUNNING] = "running", | |
3057 | [MANAGER_DEGRADED] = "degraded", | |
3058 | [MANAGER_MAINTENANCE] = "maintenance", | |
3059 | [MANAGER_STOPPING] = "stopping", | |
3060 | }; | |
3061 | ||
3062 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |