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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> | |
28 | #include <sys/poll.h> | |
e1414003 LP |
29 | #include <sys/reboot.h> |
30 | #include <sys/ioctl.h> | |
31 | #include <linux/kd.h> | |
80876c20 LP |
32 | #include <termios.h> |
33 | #include <fcntl.h> | |
a16e1123 LP |
34 | #include <sys/types.h> |
35 | #include <sys/stat.h> | |
fe51822e | 36 | #include <dirent.h> |
8742514c | 37 | #include <sys/timerfd.h> |
830f6caa LP |
38 | |
39 | #ifdef HAVE_AUDIT | |
4927fcae | 40 | #include <libaudit.h> |
830f6caa | 41 | #endif |
60918275 | 42 | |
718db961 LP |
43 | #include "sd-daemon.h" |
44 | #include "sd-id128.h" | |
45 | #include "sd-messages.h" | |
81527be1 | 46 | |
60918275 | 47 | #include "manager.h" |
75778e21 | 48 | #include "transaction.h" |
60918275 LP |
49 | #include "hashmap.h" |
50 | #include "macro.h" | |
51 | #include "strv.h" | |
16354eff | 52 | #include "log.h" |
2a987ee8 | 53 | #include "util.h" |
49e942b2 | 54 | #include "mkdir.h" |
ea430986 | 55 | #include "ratelimit.h" |
e21fea24 | 56 | #include "locale-setup.h" |
8e274523 | 57 | #include "mount-setup.h" |
9e2f7c11 | 58 | #include "unit-name.h" |
1137a57c | 59 | #include "missing.h" |
84e3543e | 60 | #include "path-lookup.h" |
514f4ef5 | 61 | #include "special.h" |
d06dacd0 | 62 | #include "exit-status.h" |
5dc4c17f | 63 | #include "virt.h" |
e96d6be7 | 64 | #include "watchdog.h" |
b59e2465 | 65 | #include "cgroup-util.h" |
9eb977db | 66 | #include "path-util.h" |
c1165f82 | 67 | #include "audit-fd.h" |
c51d84dc | 68 | #include "boot-timestamps.h" |
8b55b8c4 | 69 | #include "env-util.h" |
718db961 LP |
70 | #include "bus-errors.h" |
71 | #include "bus-error.h" | |
72 | #include "bus-util.h" | |
73 | #include "dbus.h" | |
74 | #include "dbus-unit.h" | |
75 | #include "dbus-job.h" | |
76 | #include "dbus-manager.h" | |
e3dd987c | 77 | #include "bus-kernel.h" |
60918275 | 78 | |
701cc384 | 79 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 80 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 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 | ||
c3e31c7b ZJS |
87 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
88 | ||
718db961 LP |
89 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
90 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
91 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
92 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
93 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 94 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 95 | |
03b717a3 | 96 | static int manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 ZJS |
97 | usec_t next; |
98 | ||
718db961 | 99 | assert(m); |
03b717a3 | 100 | |
718db961 | 101 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
102 | return 0; |
103 | ||
e5723c89 | 104 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
6a0f1f6d LP |
105 | return sd_event_add_time( |
106 | m->event, | |
107 | &m->jobs_in_progress_event_source, | |
108 | CLOCK_MONOTONIC, | |
109 | next, 0, | |
110 | manager_dispatch_jobs_in_progress, m); | |
03b717a3 MS |
111 | } |
112 | ||
718db961 | 113 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 114 | |
03b717a3 MS |
115 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
116 | char *p = buffer; | |
117 | ||
118 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
119 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
120 | ||
121 | if (pos > 1) { | |
6282c859 MS |
122 | if (pos > 2) |
123 | p = mempset(p, ' ', pos-2); | |
5052495b | 124 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
125 | *p++ = '*'; |
126 | } | |
127 | ||
128 | if (pos > 0 && pos <= width) { | |
5052495b | 129 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
130 | *p++ = '*'; |
131 | } | |
132 | ||
5052495b | 133 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
134 | |
135 | if (pos < width) { | |
5052495b | 136 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 137 | *p++ = '*'; |
6282c859 MS |
138 | if (pos < width-1) |
139 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 140 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 141 | } |
03b717a3 MS |
142 | } |
143 | ||
cb8ccb22 | 144 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
145 | assert(m); |
146 | ||
cb8ccb22 ZJS |
147 | if (enable) { |
148 | if (m->show_status == SHOW_STATUS_AUTO) | |
149 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
150 | } else { | |
151 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
152 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
153 | } | |
154 | } | |
155 | ||
03b717a3 | 156 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 157 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
158 | Iterator i; |
159 | Job *j; | |
03b717a3 MS |
160 | unsigned counter = 0, print_nr; |
161 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
162 | unsigned cylon_pos; | |
8bb310c3 ZJS |
163 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
164 | uint64_t x; | |
03b717a3 | 165 | |
718db961 LP |
166 | assert(m); |
167 | ||
cb8ccb22 | 168 | manager_flip_auto_status(m, true); |
d450b6f2 | 169 | |
03b717a3 MS |
170 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
171 | ||
172 | HASHMAP_FOREACH(j, m->jobs, i) | |
173 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
174 | break; | |
175 | ||
e970a72e MS |
176 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
177 | * so the above loop must have succeeded in finding j. */ | |
178 | assert(counter == print_nr + 1); | |
51d122af | 179 | assert(j); |
5a82a91a | 180 | |
03b717a3 MS |
181 | cylon_pos = m->jobs_in_progress_iteration % 14; |
182 | if (cylon_pos >= 8) | |
183 | cylon_pos = 14 - cylon_pos; | |
184 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
185 | ||
8bb310c3 ZJS |
186 | m->jobs_in_progress_iteration++; |
187 | ||
03b717a3 MS |
188 | if (m->n_running_jobs > 1) |
189 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
190 | job_of_n = NULL; | |
191 | ||
8bb310c3 ZJS |
192 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
193 | if (job_get_timeout(j, &x) > 0) | |
194 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
195 | ||
6b02bce7 | 196 | manager_status_printf(m, true, cylon, |
8bb310c3 ZJS |
197 | "%sA %s job is running for %s (%s / %s)", |
198 | strempty(job_of_n), | |
199 | job_type_to_string(j->type), | |
200 | unit_description(j->unit), | |
201 | time, limit); | |
03b717a3 | 202 | |
03b717a3 MS |
203 | } |
204 | ||
31a7eb86 | 205 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
206 | int r; |
207 | ||
718db961 LP |
208 | assert(m); |
209 | ||
210 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
211 | return 0; |
212 | ||
213 | if (m->idle_pipe[2] < 0) | |
214 | return 0; | |
215 | ||
151b9b96 | 216 | 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 |
217 | if (r < 0) { |
218 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
219 | return r; | |
31a7eb86 ZJS |
220 | } |
221 | ||
31a7eb86 | 222 | return 0; |
31a7eb86 ZJS |
223 | } |
224 | ||
718db961 LP |
225 | static void manager_close_idle_pipe(Manager *m) { |
226 | assert(m); | |
31a7eb86 | 227 | |
3d94f76c LP |
228 | safe_close_pair(m->idle_pipe); |
229 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
230 | } |
231 | ||
8742514c | 232 | static int manager_setup_time_change(Manager *m) { |
718db961 | 233 | int r; |
b92bea5d ZJS |
234 | |
235 | /* We only care for the cancellation event, hence we set the | |
236 | * timeout to the latest possible value. */ | |
237 | struct itimerspec its = { | |
238 | .it_value.tv_sec = TIME_T_MAX, | |
239 | }; | |
8742514c | 240 | |
718db961 LP |
241 | assert(m); |
242 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 243 | |
0d8c31ff ZJS |
244 | if (m->test_run) |
245 | return 0; | |
246 | ||
8742514c LP |
247 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever |
248 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
249 | ||
718db961 LP |
250 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
251 | if (m->time_change_fd < 0) { | |
8742514c LP |
252 | log_error("Failed to create timerfd: %m"); |
253 | return -errno; | |
254 | } | |
255 | ||
718db961 | 256 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 257 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
03e334a1 | 258 | m->time_change_fd = safe_close(m->time_change_fd); |
8742514c LP |
259 | return 0; |
260 | } | |
261 | ||
151b9b96 | 262 | 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 |
263 | if (r < 0) { |
264 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
265 | return r; | |
8742514c LP |
266 | } |
267 | ||
268 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
80876c20 | 273 | static int enable_special_signals(Manager *m) { |
718db961 | 274 | _cleanup_close_ int fd = -1; |
80876c20 LP |
275 | |
276 | assert(m); | |
277 | ||
a41b539e | 278 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
279 | * this will fail with EPERM (older) or EINVAL (newer), so |
280 | * ignore that. */ | |
281 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
282 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
283 | ||
a41b539e LP |
284 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
285 | if (fd < 0) { | |
286 | /* Support systems without virtual console */ | |
287 | if (fd != -ENOENT) | |
288 | log_warning("Failed to open /dev/tty0: %m"); | |
289 | } else { | |
80876c20 LP |
290 | /* Enable that we get SIGWINCH on kbrequest */ |
291 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 292 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
293 | } |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
ce578209 | 298 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
299 | struct sigaction sa = { |
300 | .sa_handler = SIG_DFL, | |
301 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
302 | }; | |
718db961 LP |
303 | sigset_t mask; |
304 | int r; | |
60918275 | 305 | |
ce578209 LP |
306 | assert(m); |
307 | ||
0d8c31ff ZJS |
308 | if (m->test_run) |
309 | return 0; | |
310 | ||
57c0c30e | 311 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
312 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
313 | ||
ce578209 | 314 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
315 | |
316 | sigset_add_many(&mask, | |
317 | SIGCHLD, /* Child died */ | |
318 | SIGTERM, /* Reexecute daemon */ | |
319 | SIGHUP, /* Reload configuration */ | |
320 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
321 | SIGUSR2, /* systemd: dump status */ | |
322 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
323 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
324 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
325 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 326 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
327 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
328 | SIGRTMIN+3, /* systemd: start halt.target */ | |
329 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
330 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
331 | SIGRTMIN+6, /* systemd: start kexec.target */ |
332 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
333 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
334 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
335 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
336 | SIGRTMIN+20, /* systemd: enable status messages */ |
337 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
338 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
339 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 340 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 341 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
342 | SIGRTMIN+27, /* systemd: set log target to console */ |
343 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
c1dc6153 | 344 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/ |
7d793605 | 345 | -1); |
ce578209 LP |
346 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
347 | ||
718db961 LP |
348 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
349 | if (m->signal_fd < 0) | |
ce578209 LP |
350 | return -errno; |
351 | ||
151b9b96 | 352 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
353 | if (r < 0) |
354 | return r; | |
ce578209 | 355 | |
fa28bc2d LP |
356 | /* Process signals a bit earlier than the rest of things, but |
357 | * later that notify_fd processing, so that the notify | |
358 | * processing can still figure out to which process/service a | |
359 | * message belongs, before we reap the process. */ | |
29083707 LP |
360 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
361 | if (r < 0) | |
362 | return r; | |
363 | ||
67445f4e | 364 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 365 | return enable_special_signals(m); |
e1414003 | 366 | |
ce578209 LP |
367 | return 0; |
368 | } | |
369 | ||
f069efb4 LP |
370 | static void manager_clean_environment(Manager *m) { |
371 | assert(m); | |
372 | ||
373 | /* Let's remove some environment variables that we | |
374 | * need ourselves to communicate with our clients */ | |
375 | strv_env_unset_many( | |
376 | m->environment, | |
377 | "NOTIFY_SOCKET", | |
378 | "MAINPID", | |
379 | "MANAGERPID", | |
380 | "LISTEN_PID", | |
381 | "LISTEN_FDS", | |
382 | "WATCHDOG_PID", | |
383 | "WATCHDOG_USEC", | |
384 | NULL); | |
385 | } | |
386 | ||
e21fea24 | 387 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
388 | assert(m); |
389 | ||
e21fea24 KS |
390 | if (m->running_as == SYSTEMD_SYSTEM) { |
391 | /* The system manager always starts with a clean | |
392 | * environment for its children. It does not import | |
393 | * the kernel or the parents exported variables. | |
394 | * | |
395 | * The initial passed environ is untouched to keep | |
396 | * /proc/self/environ valid; it is used for tagging | |
397 | * the init process inside containers. */ | |
43638332 ZJS |
398 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
399 | NULL); | |
e21fea24 KS |
400 | |
401 | /* Import locale variables LC_*= from configuration */ | |
402 | locale_setup(&m->environment); | |
43d03a83 | 403 | } else { |
e21fea24 KS |
404 | /* The user manager passes its own environment |
405 | * along to its children. */ | |
406 | m->environment = strv_copy(environ); | |
43d03a83 LP |
407 | } |
408 | ||
e21fea24 KS |
409 | if (!m->environment) |
410 | return -ENOMEM; | |
8b55b8c4 | 411 | |
f069efb4 | 412 | manager_clean_environment(m); |
9d5a3757 LP |
413 | strv_sort(m->environment); |
414 | ||
e21fea24 | 415 | return 0; |
71ecc858 LP |
416 | } |
417 | ||
0d8c31ff | 418 | int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { |
ce578209 | 419 | Manager *m; |
e3dd987c | 420 | int r; |
8e274523 LP |
421 | |
422 | assert(_m); | |
a5dab5ce | 423 | assert(running_as >= 0); |
67445f4e | 424 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 425 | |
915b3753 LP |
426 | m = new0(Manager, 1); |
427 | if (!m) | |
8e274523 | 428 | return -ENOMEM; |
60918275 | 429 | |
4f8d551f | 430 | #ifdef ENABLE_EFI |
530a9662 | 431 | if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) |
c51d84dc | 432 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
433 | #endif |
434 | ||
a5dab5ce | 435 | m->running_as = running_as; |
a16e1123 | 436 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
bd8f585b | 437 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
80876c20 | 438 | |
718db961 | 439 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 440 | |
e3dd987c | 441 | 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 | 442 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 443 | |
0d8c31ff ZJS |
444 | m->test_run = test_run; |
445 | ||
e21fea24 KS |
446 | r = manager_default_environment(m); |
447 | if (r < 0) | |
1137a57c LP |
448 | goto fail; |
449 | ||
718db961 LP |
450 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
451 | if (r < 0) | |
60918275 LP |
452 | goto fail; |
453 | ||
718db961 LP |
454 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
455 | if (r < 0) | |
60918275 LP |
456 | goto fail; |
457 | ||
718db961 LP |
458 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
459 | if (r < 0) | |
9152c765 LP |
460 | goto fail; |
461 | ||
718db961 LP |
462 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
463 | if (r < 0) | |
05e343b7 LP |
464 | goto fail; |
465 | ||
95ae05c0 WC |
466 | r = set_ensure_allocated(&m->startup_units, trivial_hash_func, trivial_compare_func); |
467 | if (r < 0) | |
468 | goto fail; | |
469 | ||
f755e3b7 LP |
470 | r = set_ensure_allocated(&m->failed_units, trivial_hash_func, trivial_compare_func); |
471 | if (r < 0) | |
472 | goto fail; | |
473 | ||
718db961 LP |
474 | r = sd_event_default(&m->event); |
475 | if (r < 0) | |
8742514c LP |
476 | goto fail; |
477 | ||
151b9b96 | 478 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
752b5905 LP |
479 | if (r < 0) |
480 | goto fail; | |
481 | ||
482 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
483 | if (r < 0) | |
484 | goto fail; | |
485 | ||
486 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
487 | if (r < 0) | |
488 | goto fail; | |
489 | ||
8742514c LP |
490 | r = manager_setup_signals(m); |
491 | if (r < 0) | |
9152c765 LP |
492 | goto fail; |
493 | ||
8742514c LP |
494 | r = manager_setup_cgroup(m); |
495 | if (r < 0) | |
8e274523 LP |
496 | goto fail; |
497 | ||
8742514c LP |
498 | r = manager_setup_time_change(m); |
499 | if (r < 0) | |
8c47c732 LP |
500 | goto fail; |
501 | ||
9670d583 LP |
502 | m->udev = udev_new(); |
503 | if (!m->udev) { | |
504 | r = -ENOMEM; | |
505 | goto fail; | |
506 | } | |
507 | ||
d86f9d52 LP |
508 | /* Note that we set up neither kdbus, nor the notify fd |
509 | * here. We do that after deserialization, since they might | |
510 | * have gotten serialized across the reexec. */ | |
511 | ||
72bc8d00 LP |
512 | m->taint_usr = dir_is_empty("/usr") > 0; |
513 | ||
8e274523 LP |
514 | *_m = m; |
515 | return 0; | |
60918275 LP |
516 | |
517 | fail: | |
518 | manager_free(m); | |
8e274523 | 519 | return r; |
60918275 LP |
520 | } |
521 | ||
d86f9d52 | 522 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 523 | int r; |
d86f9d52 | 524 | |
0d8c31ff ZJS |
525 | if (m->test_run) |
526 | return 0; | |
527 | ||
d86f9d52 LP |
528 | if (m->notify_fd < 0) { |
529 | _cleanup_close_ int fd = -1; | |
7181dbdb LP |
530 | union { |
531 | struct sockaddr sa; | |
532 | struct sockaddr_un un; | |
533 | } sa = { | |
534 | .sa.sa_family = AF_UNIX, | |
535 | }; | |
536 | int one = 1; | |
d86f9d52 LP |
537 | |
538 | /* First free all secondary fields */ | |
539 | free(m->notify_socket); | |
540 | m->notify_socket = NULL; | |
541 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
542 | ||
543 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
544 | if (fd < 0) { | |
545 | log_error("Failed to allocate notification socket: %m"); | |
546 | return -errno; | |
547 | } | |
548 | ||
7181dbdb LP |
549 | if (m->running_as == SYSTEMD_SYSTEM) |
550 | m->notify_socket = strdup("/run/systemd/notify"); | |
551 | else { | |
552 | const char *e; | |
d86f9d52 | 553 | |
7181dbdb LP |
554 | e = getenv("XDG_RUNTIME_DIR"); |
555 | if (!e) { | |
556 | log_error("XDG_RUNTIME_DIR is not set: %m"); | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | m->notify_socket = strappend(e, "/systemd/notify"); | |
561 | } | |
562 | if (!m->notify_socket) | |
563 | return log_oom(); | |
564 | ||
565 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); | |
566 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
d86f9d52 | 567 | if (r < 0) { |
6b9732b2 | 568 | log_error("bind(@%s) failed: %m", sa.un.sun_path+1); |
d86f9d52 LP |
569 | return -errno; |
570 | } | |
571 | ||
572 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
573 | if (r < 0) { | |
574 | log_error("SO_PASSCRED failed: %m"); | |
575 | return -errno; | |
576 | } | |
577 | ||
d86f9d52 LP |
578 | m->notify_fd = fd; |
579 | fd = -1; | |
580 | ||
581 | log_debug("Using notification socket %s", m->notify_socket); | |
582 | } | |
583 | ||
584 | if (!m->notify_event_source) { | |
151b9b96 | 585 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
d86f9d52 LP |
586 | if (r < 0) { |
587 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
588 | return -errno; | |
589 | } | |
590 | ||
591 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
592 | * still identify to which service an exit message belongs */ | |
593 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
594 | if (r < 0) { | |
595 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
596 | return r; | |
597 | } | |
598 | } | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 604 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
605 | _cleanup_free_ char *p = NULL; |
606 | ||
607 | assert(m); | |
608 | ||
0d8c31ff | 609 | if (m->test_run || m->kdbus_fd >= 0) |
d86f9d52 LP |
610 | return 0; |
611 | ||
f2769777 | 612 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
613 | if (m->kdbus_fd < 0) { |
614 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
615 | return m->kdbus_fd; | |
616 | } | |
617 | ||
618 | log_debug("Successfully set up kdbus on %s", p); | |
619 | ||
620 | /* Create the namespace directory here, so that the contents | |
621 | * of that directory is not visible to non-root users. This is | |
622 | * necessary to ensure that users cannot get access to busses | |
623 | * of virtualized users when no UID namespacing is used. */ | |
88c59cb3 | 624 | if (m->running_as == SYSTEMD_SYSTEM) |
486e99a3 | 625 | mkdir_p_label("/dev/kdbus/domain", 0700); |
d86f9d52 LP |
626 | #endif |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
632 | bool try_bus_connect; | |
633 | ||
634 | assert(m); | |
635 | ||
0d8c31ff ZJS |
636 | if (m->test_run) |
637 | return 0; | |
638 | ||
d86f9d52 LP |
639 | try_bus_connect = |
640 | m->kdbus_fd >= 0 || | |
641 | reexecuting || | |
642 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
643 | ||
644 | /* Try to connect to the busses, if possible. */ | |
645 | return bus_init(m, try_bus_connect); | |
646 | } | |
647 | ||
23a177ef | 648 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 649 | Unit *u; |
23a177ef LP |
650 | unsigned n = 0; |
651 | ||
652 | assert(m); | |
653 | ||
595ed347 MS |
654 | while ((u = m->cleanup_queue)) { |
655 | assert(u->in_cleanup_queue); | |
23a177ef | 656 | |
595ed347 | 657 | unit_free(u); |
23a177ef LP |
658 | n++; |
659 | } | |
660 | ||
661 | return n; | |
662 | } | |
663 | ||
eced69b3 | 664 | enum { |
35b8ca3a | 665 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
666 | GC_OFFSET_UNSURE, /* No clue */ |
667 | GC_OFFSET_GOOD, /* We still need this unit */ | |
668 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
669 | _GC_OFFSET_MAX | |
670 | }; | |
671 | ||
672 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
673 | Iterator i; |
674 | Unit *other; | |
eced69b3 | 675 | bool is_bad; |
701cc384 LP |
676 | |
677 | assert(u); | |
678 | ||
ac155bb8 MS |
679 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
680 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
681 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
682 | return; |
683 | ||
ac155bb8 | 684 | if (u->in_cleanup_queue) |
701cc384 LP |
685 | goto bad; |
686 | ||
687 | if (unit_check_gc(u)) | |
688 | goto good; | |
689 | ||
ac155bb8 | 690 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
691 | |
692 | is_bad = true; | |
693 | ||
ac155bb8 | 694 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
695 | unit_gc_sweep(other, gc_marker); |
696 | ||
ac155bb8 | 697 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 698 | goto good; |
eced69b3 | 699 | |
ac155bb8 | 700 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 701 | is_bad = false; |
701cc384 LP |
702 | } |
703 | ||
eced69b3 LP |
704 | if (is_bad) |
705 | goto bad; | |
706 | ||
707 | /* We were unable to find anything out about this entry, so | |
708 | * let's investigate it later */ | |
ac155bb8 | 709 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
710 | unit_add_to_gc_queue(u); |
711 | return; | |
712 | ||
701cc384 | 713 | bad: |
eced69b3 LP |
714 | /* We definitely know that this one is not useful anymore, so |
715 | * let's mark it for deletion */ | |
ac155bb8 | 716 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 717 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
718 | return; |
719 | ||
720 | good: | |
ac155bb8 | 721 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
722 | } |
723 | ||
724 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 725 | Unit *u; |
701cc384 | 726 | unsigned n = 0; |
eced69b3 | 727 | unsigned gc_marker; |
701cc384 LP |
728 | |
729 | assert(m); | |
730 | ||
cf1265e1 | 731 | /* log_debug("Running GC..."); */ |
701cc384 | 732 | |
eced69b3 LP |
733 | m->gc_marker += _GC_OFFSET_MAX; |
734 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 735 | m->gc_marker = 1; |
701cc384 | 736 | |
eced69b3 LP |
737 | gc_marker = m->gc_marker; |
738 | ||
595ed347 MS |
739 | while ((u = m->gc_queue)) { |
740 | assert(u->in_gc_queue); | |
701cc384 | 741 | |
595ed347 | 742 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 743 | |
71fda00f | 744 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 745 | u->in_gc_queue = false; |
701cc384 LP |
746 | |
747 | n++; | |
748 | ||
595ed347 MS |
749 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
750 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 751 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
752 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
753 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
754 | } |
755 | } | |
756 | ||
757 | m->n_in_gc_queue = 0; | |
701cc384 LP |
758 | |
759 | return n; | |
760 | } | |
761 | ||
a16e1123 | 762 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 763 | Unit *u; |
60918275 LP |
764 | |
765 | assert(m); | |
766 | ||
87f0e418 LP |
767 | while ((u = hashmap_first(m->units))) |
768 | unit_free(u); | |
964e0949 LP |
769 | |
770 | manager_dispatch_cleanup_queue(m); | |
771 | ||
772 | assert(!m->load_queue); | |
773 | assert(!m->run_queue); | |
774 | assert(!m->dbus_unit_queue); | |
775 | assert(!m->dbus_job_queue); | |
776 | assert(!m->cleanup_queue); | |
777 | assert(!m->gc_queue); | |
778 | ||
964e0949 LP |
779 | assert(hashmap_isempty(m->jobs)); |
780 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
781 | |
782 | m->n_on_console = 0; | |
783 | m->n_running_jobs = 0; | |
a16e1123 LP |
784 | } |
785 | ||
786 | void manager_free(Manager *m) { | |
787 | UnitType c; | |
c93ff2e9 | 788 | int i; |
87f0e418 | 789 | |
a16e1123 LP |
790 | assert(m); |
791 | ||
792 | manager_clear_jobs_and_units(m); | |
23a177ef | 793 | |
7824bbeb LP |
794 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
795 | if (unit_vtable[c]->shutdown) | |
796 | unit_vtable[c]->shutdown(m); | |
797 | ||
a16e1123 LP |
798 | /* If we reexecute ourselves, we keep the root cgroup |
799 | * around */ | |
c6c18be3 | 800 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 801 | |
5a1e9937 LP |
802 | manager_undo_generators(m); |
803 | ||
5e8d1c9a | 804 | bus_done(m); |
ea430986 | 805 | |
87f0e418 | 806 | hashmap_free(m->units); |
60918275 | 807 | hashmap_free(m->jobs); |
5ba6985b LP |
808 | hashmap_free(m->watch_pids1); |
809 | hashmap_free(m->watch_pids2); | |
05e343b7 | 810 | hashmap_free(m->watch_bus); |
9152c765 | 811 | |
95ae05c0 | 812 | set_free(m->startup_units); |
f755e3b7 LP |
813 | set_free(m->failed_units); |
814 | ||
718db961 LP |
815 | sd_event_source_unref(m->signal_event_source); |
816 | sd_event_source_unref(m->notify_event_source); | |
817 | sd_event_source_unref(m->time_change_event_source); | |
818 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
819 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 820 | sd_event_source_unref(m->run_queue_event_source); |
718db961 | 821 | |
03e334a1 LP |
822 | safe_close(m->signal_fd); |
823 | safe_close(m->notify_fd); | |
824 | safe_close(m->time_change_fd); | |
825 | safe_close(m->kdbus_fd); | |
718db961 LP |
826 | |
827 | manager_close_idle_pipe(m); | |
828 | ||
9670d583 | 829 | udev_unref(m->udev); |
718db961 | 830 | sd_event_unref(m->event); |
60918275 | 831 | |
c952c6ec LP |
832 | free(m->notify_socket); |
833 | ||
84e3543e | 834 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 835 | strv_free(m->environment); |
036643a2 | 836 | |
4ad49000 | 837 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 838 | set_free_free(m->unit_path_cache); |
33be102a | 839 | |
664f88a7 LP |
840 | free(m->switch_root); |
841 | free(m->switch_root_init); | |
842 | ||
517d56b1 | 843 | for (i = 0; i < _RLIMIT_MAX; i++) |
c93ff2e9 FC |
844 | free(m->rlimit[i]); |
845 | ||
a57f7e2c LP |
846 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
847 | hashmap_free(m->units_requiring_mounts_for); | |
848 | ||
60918275 LP |
849 | free(m); |
850 | } | |
851 | ||
a16e1123 LP |
852 | int manager_enumerate(Manager *m) { |
853 | int r = 0, q; | |
f50e0a01 | 854 | UnitType c; |
f50e0a01 LP |
855 | |
856 | assert(m); | |
857 | ||
a16e1123 LP |
858 | /* Let's ask every type to load all units from disk/kernel |
859 | * that it might know */ | |
f50e0a01 | 860 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
861 | if (unit_vtable[c]->enumerate) { |
862 | q = unit_vtable[c]->enumerate(m); | |
863 | if (q < 0) | |
a16e1123 | 864 | r = q; |
a57f7e2c | 865 | } |
f50e0a01 LP |
866 | |
867 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
868 | return r; |
869 | } | |
870 | ||
9588bc32 | 871 | static int manager_coldplug(Manager *m) { |
8f8f05a9 | 872 | int r = 0; |
a16e1123 LP |
873 | Iterator i; |
874 | Unit *u; | |
875 | char *k; | |
876 | ||
877 | assert(m); | |
f50e0a01 LP |
878 | |
879 | /* Then, let's set up their initial state. */ | |
880 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
8f8f05a9 | 881 | int q; |
f50e0a01 LP |
882 | |
883 | /* ignore aliases */ | |
ac155bb8 | 884 | if (u->id != k) |
f50e0a01 LP |
885 | continue; |
886 | ||
8f8f05a9 LP |
887 | q = unit_coldplug(u); |
888 | if (q < 0) | |
cca098b0 | 889 | r = q; |
f50e0a01 LP |
890 | } |
891 | ||
a16e1123 LP |
892 | return r; |
893 | } | |
894 | ||
fe51822e LP |
895 | static void manager_build_unit_path_cache(Manager *m) { |
896 | char **i; | |
7fd1b19b | 897 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
898 | int r; |
899 | ||
900 | assert(m); | |
901 | ||
902 | set_free_free(m->unit_path_cache); | |
903 | ||
874310b7 ZJS |
904 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
905 | if (!m->unit_path_cache) { | |
fe51822e LP |
906 | log_error("Failed to allocate unit path cache."); |
907 | return; | |
908 | } | |
909 | ||
910 | /* This simply builds a list of files we know exist, so that | |
911 | * we don't always have to go to disk */ | |
912 | ||
913 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
914 | struct dirent *de; | |
915 | ||
bd0af849 ZJS |
916 | d = opendir(*i); |
917 | if (!d) { | |
874310b7 ZJS |
918 | if (errno != ENOENT) |
919 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
920 | continue; |
921 | } | |
922 | ||
923 | while ((de = readdir(d))) { | |
924 | char *p; | |
925 | ||
926 | if (ignore_file(de->d_name)) | |
927 | continue; | |
928 | ||
b7def684 | 929 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 930 | if (!p) { |
fe51822e LP |
931 | r = -ENOMEM; |
932 | goto fail; | |
933 | } | |
934 | ||
ef42202a ZJS |
935 | r = set_consume(m->unit_path_cache, p); |
936 | if (r < 0) | |
fe51822e | 937 | goto fail; |
fe51822e LP |
938 | } |
939 | ||
940 | closedir(d); | |
941 | d = NULL; | |
942 | } | |
943 | ||
944 | return; | |
945 | ||
946 | fail: | |
947 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
948 | ||
949 | set_free_free(m->unit_path_cache); | |
950 | m->unit_path_cache = NULL; | |
fe51822e LP |
951 | } |
952 | ||
9588bc32 LP |
953 | |
954 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
955 | Unit *u; | |
956 | Iterator i; | |
957 | int r; | |
958 | ||
959 | assert(m); | |
960 | ||
961 | HASHMAP_FOREACH(u, m->units, i) { | |
962 | ||
963 | if (fdset_size(fds) <= 0) | |
964 | break; | |
965 | ||
966 | if (UNIT_VTABLE(u)->distribute_fds) { | |
967 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
968 | if (r < 0) | |
969 | return r; | |
970 | } | |
971 | } | |
972 | ||
973 | return 0; | |
974 | } | |
975 | ||
a16e1123 LP |
976 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
977 | int r, q; | |
978 | ||
979 | assert(m); | |
980 | ||
518d10e9 | 981 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 982 | manager_run_generators(m); |
518d10e9 | 983 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 984 | |
07719a21 LP |
985 | r = lookup_paths_init( |
986 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 987 | NULL, |
07719a21 LP |
988 | m->generator_unit_path, |
989 | m->generator_unit_path_early, | |
990 | m->generator_unit_path_late); | |
991 | if (r < 0) | |
992 | return r; | |
993 | ||
fe51822e LP |
994 | manager_build_unit_path_cache(m); |
995 | ||
9f611ad8 LP |
996 | /* If we will deserialize make sure that during enumeration |
997 | * this is already known, so we increase the counter here | |
998 | * already */ | |
999 | if (serialization) | |
a7556052 | 1000 | m->n_reloading ++; |
9f611ad8 | 1001 | |
a16e1123 | 1002 | /* First, enumerate what we can from all config files */ |
718db961 | 1003 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 1004 | r = manager_enumerate(m); |
718db961 | 1005 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
1006 | |
1007 | /* Second, deserialize if there is something to deserialize */ | |
1cd974ed ZJS |
1008 | if (serialization) |
1009 | r = manager_deserialize(m, serialization, fds); | |
a16e1123 | 1010 | |
01e10de3 LP |
1011 | /* Any fds left? Find some unit which wants them. This is |
1012 | * useful to allow container managers to pass some file | |
1013 | * descriptors to us pre-initialized. This enables | |
1014 | * socket-based activation of entire containers. */ | |
1015 | if (fdset_size(fds) > 0) { | |
1016 | q = manager_distribute_fds(m, fds); | |
1cd974ed | 1017 | if (q < 0 && r == 0) |
01e10de3 LP |
1018 | r = q; |
1019 | } | |
1020 | ||
d86f9d52 LP |
1021 | /* We might have deserialized the notify fd, but if we didn't |
1022 | * then let's create the bus now */ | |
1cd974ed ZJS |
1023 | q = manager_setup_notify(m); |
1024 | if (q < 0 && r == 0) | |
1025 | r = q; | |
d86f9d52 | 1026 | |
e3dd987c LP |
1027 | /* We might have deserialized the kdbus control fd, but if we |
1028 | * didn't, then let's create the bus now. */ | |
1029 | manager_setup_kdbus(m); | |
1030 | manager_connect_bus(m, !!serialization); | |
8f8f05a9 | 1031 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); |
e3dd987c | 1032 | |
a16e1123 | 1033 | /* Third, fire things up! */ |
07719a21 | 1034 | q = manager_coldplug(m); |
1cd974ed | 1035 | if (q < 0 && r == 0) |
a16e1123 LP |
1036 | r = q; |
1037 | ||
9f611ad8 | 1038 | if (serialization) { |
a7556052 LP |
1039 | assert(m->n_reloading > 0); |
1040 | m->n_reloading --; | |
71445ae7 LP |
1041 | |
1042 | /* Let's wait for the UnitNew/JobNew messages being | |
1043 | * sent, before we notify that the reload is | |
1044 | * finished */ | |
1045 | m->send_reloading_done = true; | |
9f611ad8 LP |
1046 | } |
1047 | ||
a16e1123 | 1048 | return r; |
f50e0a01 LP |
1049 | } |
1050 | ||
718db961 | 1051 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 1052 | int r; |
7527cb52 | 1053 | Transaction *tr; |
e5b5ae50 LP |
1054 | |
1055 | assert(m); | |
1056 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1057 | assert(unit); |
e5b5ae50 | 1058 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1059 | |
398ef8ba | 1060 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 1061 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 1062 | return -EINVAL; |
398ef8ba | 1063 | } |
c497c7a9 | 1064 | |
ac155bb8 | 1065 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 1066 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
1067 | return -EPERM; |
1068 | } | |
1069 | ||
66870f90 ZJS |
1070 | log_debug_unit(unit->id, |
1071 | "Trying to enqueue job %s/%s/%s", unit->id, | |
1072 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 1073 | |
e0209d83 MS |
1074 | job_type_collapse(&type, unit); |
1075 | ||
23ade460 | 1076 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1077 | if (!tr) |
1078 | return -ENOMEM; | |
11dd41ce | 1079 | |
7527cb52 MS |
1080 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1081 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1082 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1083 | if (r < 0) |
1084 | goto tr_abort; | |
c497c7a9 | 1085 | |
7527cb52 MS |
1086 | if (mode == JOB_ISOLATE) { |
1087 | r = transaction_add_isolate_jobs(tr, m); | |
1088 | if (r < 0) | |
1089 | goto tr_abort; | |
1090 | } | |
1091 | ||
1092 | r = transaction_activate(tr, m, mode, e); | |
1093 | if (r < 0) | |
1094 | goto tr_abort; | |
e5b5ae50 | 1095 | |
66870f90 ZJS |
1096 | log_debug_unit(unit->id, |
1097 | "Enqueued job %s/%s as %u", unit->id, | |
1098 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1099 | |
e5b5ae50 | 1100 | if (_ret) |
b94fbd30 | 1101 | *_ret = tr->anchor_job; |
60918275 | 1102 | |
7527cb52 | 1103 | transaction_free(tr); |
e5b5ae50 | 1104 | return 0; |
7527cb52 MS |
1105 | |
1106 | tr_abort: | |
1107 | transaction_abort(tr); | |
1108 | transaction_free(tr); | |
1109 | return r; | |
e5b5ae50 | 1110 | } |
60918275 | 1111 | |
718db961 | 1112 | 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 |
1113 | Unit *unit; |
1114 | int r; | |
1115 | ||
1116 | assert(m); | |
1117 | assert(type < _JOB_TYPE_MAX); | |
1118 | assert(name); | |
1119 | assert(mode < _JOB_MODE_MAX); | |
1120 | ||
c3090674 LP |
1121 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1122 | if (r < 0) | |
28247076 LP |
1123 | return r; |
1124 | ||
398ef8ba | 1125 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1126 | } |
1127 | ||
60918275 LP |
1128 | Job *manager_get_job(Manager *m, uint32_t id) { |
1129 | assert(m); | |
1130 | ||
1131 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1132 | } | |
1133 | ||
87f0e418 | 1134 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1135 | assert(m); |
1136 | assert(name); | |
1137 | ||
87f0e418 | 1138 | return hashmap_get(m->units, name); |
60918275 LP |
1139 | } |
1140 | ||
c1e1601e | 1141 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1142 | Unit *u; |
c1e1601e | 1143 | unsigned n = 0; |
60918275 LP |
1144 | |
1145 | assert(m); | |
1146 | ||
223dabab LP |
1147 | /* Make sure we are not run recursively */ |
1148 | if (m->dispatching_load_queue) | |
c1e1601e | 1149 | return 0; |
223dabab LP |
1150 | |
1151 | m->dispatching_load_queue = true; | |
1152 | ||
87f0e418 | 1153 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1154 | * tries to load its data until the queue is empty */ |
1155 | ||
595ed347 MS |
1156 | while ((u = m->load_queue)) { |
1157 | assert(u->in_load_queue); | |
034c6ed7 | 1158 | |
595ed347 | 1159 | unit_load(u); |
c1e1601e | 1160 | n++; |
60918275 LP |
1161 | } |
1162 | ||
223dabab | 1163 | m->dispatching_load_queue = false; |
c1e1601e | 1164 | return n; |
60918275 LP |
1165 | } |
1166 | ||
c2756a68 LP |
1167 | int manager_load_unit_prepare( |
1168 | Manager *m, | |
1169 | const char *name, | |
1170 | const char *path, | |
718db961 | 1171 | sd_bus_error *e, |
c2756a68 LP |
1172 | Unit **_ret) { |
1173 | ||
87f0e418 | 1174 | Unit *ret; |
7d17cfbc | 1175 | UnitType t; |
60918275 LP |
1176 | int r; |
1177 | ||
1178 | assert(m); | |
9e2f7c11 | 1179 | assert(name || path); |
60918275 | 1180 | |
db06e3b6 LP |
1181 | /* This will prepare the unit for loading, but not actually |
1182 | * load anything from disk. */ | |
0301abf4 | 1183 | |
718db961 LP |
1184 | if (path && !is_path(path)) |
1185 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1186 | |
1187 | if (!name) | |
2b6bf07d | 1188 | name = basename(path); |
9e2f7c11 | 1189 | |
7d17cfbc MS |
1190 | t = unit_name_to_type(name); |
1191 | ||
f78e6385 | 1192 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1193 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1194 | |
7d17cfbc MS |
1195 | ret = manager_get_unit(m, name); |
1196 | if (ret) { | |
034c6ed7 | 1197 | *_ret = ret; |
413d6313 | 1198 | return 1; |
034c6ed7 | 1199 | } |
60918275 | 1200 | |
7d17cfbc MS |
1201 | ret = unit_new(m, unit_vtable[t]->object_size); |
1202 | if (!ret) | |
60918275 LP |
1203 | return -ENOMEM; |
1204 | ||
7d17cfbc | 1205 | if (path) { |
ac155bb8 MS |
1206 | ret->fragment_path = strdup(path); |
1207 | if (!ret->fragment_path) { | |
0301abf4 LP |
1208 | unit_free(ret); |
1209 | return -ENOMEM; | |
1210 | } | |
7d17cfbc | 1211 | } |
0301abf4 | 1212 | |
1058cbf2 ZJS |
1213 | r = unit_add_name(ret, name); |
1214 | if (r < 0) { | |
87f0e418 | 1215 | unit_free(ret); |
1ffba6fe | 1216 | return r; |
60918275 LP |
1217 | } |
1218 | ||
87f0e418 | 1219 | unit_add_to_load_queue(ret); |
c1e1601e | 1220 | unit_add_to_dbus_queue(ret); |
949061f0 | 1221 | unit_add_to_gc_queue(ret); |
c1e1601e | 1222 | |
db06e3b6 LP |
1223 | if (_ret) |
1224 | *_ret = ret; | |
1225 | ||
1226 | return 0; | |
1227 | } | |
1228 | ||
c2756a68 LP |
1229 | int manager_load_unit( |
1230 | Manager *m, | |
1231 | const char *name, | |
1232 | const char *path, | |
718db961 | 1233 | sd_bus_error *e, |
c2756a68 LP |
1234 | Unit **_ret) { |
1235 | ||
db06e3b6 LP |
1236 | int r; |
1237 | ||
1238 | assert(m); | |
1239 | ||
1240 | /* This will load the service information files, but not actually | |
1241 | * start any services or anything. */ | |
1242 | ||
c3090674 LP |
1243 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1244 | if (r != 0) | |
db06e3b6 LP |
1245 | return r; |
1246 | ||
f50e0a01 | 1247 | manager_dispatch_load_queue(m); |
60918275 | 1248 | |
9e2f7c11 | 1249 | if (_ret) |
413d6313 | 1250 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1251 | |
60918275 LP |
1252 | return 0; |
1253 | } | |
a66d02c3 | 1254 | |
cea8e32e | 1255 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1256 | Iterator i; |
a66d02c3 LP |
1257 | Job *j; |
1258 | ||
1259 | assert(s); | |
1260 | assert(f); | |
1261 | ||
034c6ed7 | 1262 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1263 | job_dump(j, f, prefix); |
a66d02c3 LP |
1264 | } |
1265 | ||
87f0e418 | 1266 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1267 | Iterator i; |
87f0e418 | 1268 | Unit *u; |
11dd41ce | 1269 | const char *t; |
a66d02c3 LP |
1270 | |
1271 | assert(s); | |
1272 | assert(f); | |
1273 | ||
87f0e418 | 1274 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1275 | if (u->id == t) |
87f0e418 | 1276 | unit_dump(u, f, prefix); |
a66d02c3 | 1277 | } |
7fad411c LP |
1278 | |
1279 | void manager_clear_jobs(Manager *m) { | |
1280 | Job *j; | |
1281 | ||
1282 | assert(m); | |
1283 | ||
7fad411c | 1284 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1285 | /* No need to recurse. We're cancelling all jobs. */ |
1286 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1287 | } |
83c60c9f | 1288 | |
752b5905 LP |
1289 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1290 | Manager *m = userdata; | |
83c60c9f | 1291 | Job *j; |
034c6ed7 | 1292 | |
752b5905 LP |
1293 | assert(source); |
1294 | assert(m); | |
9152c765 | 1295 | |
034c6ed7 | 1296 | while ((j = m->run_queue)) { |
ac1135be | 1297 | assert(j->installed); |
034c6ed7 LP |
1298 | assert(j->in_run_queue); |
1299 | ||
1300 | job_run_and_invalidate(j); | |
9152c765 | 1301 | } |
034c6ed7 | 1302 | |
a0b64226 | 1303 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1304 | manager_watch_jobs_in_progress(m); |
1305 | ||
31a7eb86 ZJS |
1306 | if (m->n_on_console > 0) |
1307 | manager_watch_idle_pipe(m); | |
1308 | ||
752b5905 | 1309 | return 1; |
c1e1601e LP |
1310 | } |
1311 | ||
9588bc32 | 1312 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1313 | Job *j; |
595ed347 | 1314 | Unit *u; |
c1e1601e LP |
1315 | unsigned n = 0; |
1316 | ||
1317 | assert(m); | |
1318 | ||
1319 | if (m->dispatching_dbus_queue) | |
1320 | return 0; | |
1321 | ||
1322 | m->dispatching_dbus_queue = true; | |
1323 | ||
595ed347 MS |
1324 | while ((u = m->dbus_unit_queue)) { |
1325 | assert(u->in_dbus_queue); | |
c1e1601e | 1326 | |
595ed347 | 1327 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1328 | n++; |
1329 | } | |
1330 | ||
1331 | while ((j = m->dbus_job_queue)) { | |
1332 | assert(j->in_dbus_queue); | |
1333 | ||
1334 | bus_job_send_change_signal(j); | |
1335 | n++; | |
1336 | } | |
1337 | ||
1338 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1339 | |
1340 | if (m->send_reloading_done) { | |
1341 | m->send_reloading_done = false; | |
1342 | ||
718db961 | 1343 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1344 | } |
1345 | ||
718db961 LP |
1346 | if (m->queued_message) |
1347 | bus_send_queued_message(m); | |
1348 | ||
c1e1601e | 1349 | return n; |
9152c765 LP |
1350 | } |
1351 | ||
5ba6985b LP |
1352 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) { |
1353 | _cleanup_strv_free_ char **tags = NULL; | |
1354 | ||
1355 | assert(m); | |
1356 | assert(u); | |
1357 | assert(buf); | |
1358 | assert(n > 0); | |
1359 | ||
1360 | tags = strv_split(buf, "\n\r"); | |
1361 | if (!tags) { | |
1362 | log_oom(); | |
1363 | return; | |
1364 | } | |
1365 | ||
1366 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); | |
1367 | ||
1368 | if (UNIT_VTABLE(u)->notify_message) | |
1369 | UNIT_VTABLE(u)->notify_message(u, pid, tags); | |
1370 | } | |
1371 | ||
718db961 LP |
1372 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1373 | Manager *m = userdata; | |
8c47c732 LP |
1374 | ssize_t n; |
1375 | ||
1376 | assert(m); | |
718db961 LP |
1377 | assert(m->notify_fd == fd); |
1378 | ||
1379 | if (revents != EPOLLIN) { | |
1380 | log_warning("Got unexpected poll event for notify fd."); | |
1381 | return 0; | |
1382 | } | |
8c47c732 LP |
1383 | |
1384 | for (;;) { | |
1385 | char buf[4096]; | |
b92bea5d ZJS |
1386 | struct iovec iovec = { |
1387 | .iov_base = buf, | |
1388 | .iov_len = sizeof(buf)-1, | |
1389 | }; | |
5ba6985b | 1390 | bool found = false; |
b92bea5d | 1391 | |
8c47c732 LP |
1392 | union { |
1393 | struct cmsghdr cmsghdr; | |
1394 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1395 | } control = {}; |
1396 | ||
1397 | struct msghdr msghdr = { | |
1398 | .msg_iov = &iovec, | |
1399 | .msg_iovlen = 1, | |
1400 | .msg_control = &control, | |
1401 | .msg_controllen = sizeof(control), | |
1402 | }; | |
1403 | struct ucred *ucred; | |
8c47c732 | 1404 | Unit *u; |
8c47c732 | 1405 | |
718db961 | 1406 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1407 | if (n <= 0) { |
b92bea5d | 1408 | if (n == 0) |
8c47c732 LP |
1409 | return -EIO; |
1410 | ||
f6144808 | 1411 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1412 | break; |
1413 | ||
1414 | return -errno; | |
1415 | } | |
1416 | ||
1417 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1418 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1419 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1420 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1421 | log_warning("Received notify message without credentials. Ignoring."); | |
1422 | continue; | |
1423 | } | |
1424 | ||
1425 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1426 | ||
8c40acf7 LP |
1427 | assert((size_t) n < sizeof(buf)); |
1428 | buf[n] = 0; | |
8c47c732 | 1429 | |
5ba6985b LP |
1430 | u = manager_get_unit_by_pid(m, ucred->pid); |
1431 | if (u) { | |
1432 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1433 | found = true; | |
1434 | } | |
1435 | ||
1436 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); | |
1437 | if (u) { | |
1438 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1439 | found = true; | |
1440 | } | |
1441 | ||
1442 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); | |
1443 | if (u) { | |
1444 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1445 | found = true; | |
1446 | } | |
8c47c732 | 1447 | |
5ba6985b LP |
1448 | if (!found) |
1449 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
8c47c732 LP |
1450 | } |
1451 | ||
1452 | return 0; | |
1453 | } | |
1454 | ||
5ba6985b LP |
1455 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1456 | assert(m); | |
1457 | assert(u); | |
1458 | assert(si); | |
1459 | ||
1460 | log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); | |
1461 | ||
1462 | unit_unwatch_pid(u, si->si_pid); | |
1463 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1464 | } | |
1465 | ||
034c6ed7 | 1466 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1467 | assert(m); |
1468 | ||
1469 | for (;;) { | |
b92bea5d | 1470 | siginfo_t si = {}; |
9152c765 | 1471 | |
4112df16 LP |
1472 | /* First we call waitd() for a PID and do not reap the |
1473 | * zombie. That way we can still access /proc/$PID for | |
1474 | * it while it is a zombie. */ | |
1475 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1476 | |
1477 | if (errno == ECHILD) | |
1478 | break; | |
1479 | ||
4112df16 LP |
1480 | if (errno == EINTR) |
1481 | continue; | |
1482 | ||
9152c765 | 1483 | return -errno; |
acbb0225 | 1484 | } |
9152c765 | 1485 | |
4112df16 | 1486 | if (si.si_pid <= 0) |
9152c765 LP |
1487 | break; |
1488 | ||
15d5d9d9 | 1489 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1490 | _cleanup_free_ char *name = NULL; |
5ba6985b | 1491 | Unit *u; |
4112df16 | 1492 | |
87d2c1ff | 1493 | get_process_comm(si.si_pid, &name); |
4112df16 | 1494 | |
5ba6985b LP |
1495 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1496 | si.si_pid, strna(name), | |
1497 | sigchld_code_to_string(si.si_code), | |
1498 | si.si_status, | |
1499 | strna(si.si_code == CLD_EXITED | |
1500 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1501 | : signal_to_string(si.si_status))); | |
1502 | ||
1503 | /* And now figure out the unit this belongs | |
1504 | * to, it might be multiple... */ | |
4ad49000 | 1505 | u = manager_get_unit_by_pid(m, si.si_pid); |
5ba6985b LP |
1506 | if (u) |
1507 | invoke_sigchld_event(m, u, &si); | |
1508 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); | |
1509 | if (u) | |
1510 | invoke_sigchld_event(m, u, &si); | |
1511 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); | |
1512 | if (u) | |
1513 | invoke_sigchld_event(m, u, &si); | |
1514 | } | |
8c47c732 | 1515 | |
4112df16 LP |
1516 | /* And now, we actually reap the zombie. */ |
1517 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1518 | if (errno == EINTR) | |
1519 | continue; | |
1520 | ||
1521 | return -errno; | |
1522 | } | |
9152c765 LP |
1523 | } |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
7d793605 | 1528 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1529 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1530 | int r; |
398ef8ba | 1531 | |
66870f90 | 1532 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1533 | |
bd0af849 ZJS |
1534 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1535 | if (r < 0) | |
718db961 | 1536 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1537 | |
1538 | return r; | |
28247076 LP |
1539 | } |
1540 | ||
718db961 LP |
1541 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1542 | Manager *m = userdata; | |
9152c765 LP |
1543 | ssize_t n; |
1544 | struct signalfd_siginfo sfsi; | |
1545 | bool sigchld = false; | |
1546 | ||
1547 | assert(m); | |
718db961 LP |
1548 | assert(m->signal_fd == fd); |
1549 | ||
1550 | if (revents != EPOLLIN) { | |
1551 | log_warning("Got unexpected events from signal file descriptor."); | |
1552 | return 0; | |
1553 | } | |
9152c765 LP |
1554 | |
1555 | for (;;) { | |
718db961 | 1556 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1557 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1558 | |
1559 | if (n >= 0) | |
1560 | return -EIO; | |
1561 | ||
63090775 | 1562 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1563 | break; |
9152c765 LP |
1564 | |
1565 | return -errno; | |
1566 | } | |
1567 | ||
4daf54a8 ZJS |
1568 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
1569 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1570 | ? LOG_DEBUG : LOG_INFO, | |
1571 | &sfsi); | |
1e001f52 | 1572 | |
b9cd2ec1 LP |
1573 | switch (sfsi.ssi_signo) { |
1574 | ||
4112df16 | 1575 | case SIGCHLD: |
9152c765 | 1576 | sigchld = true; |
b9cd2ec1 LP |
1577 | break; |
1578 | ||
6632c602 | 1579 | case SIGTERM: |
67445f4e | 1580 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1581 | /* This is for compatibility with the |
1582 | * original sysvinit */ | |
e11dc4a2 | 1583 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1584 | break; |
1585 | } | |
84e9af1e | 1586 | |
a1b256b0 | 1587 | /* Fall through */ |
e11dc4a2 LP |
1588 | |
1589 | case SIGINT: | |
67445f4e | 1590 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1591 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1592 | break; |
1593 | } | |
1594 | ||
a1b256b0 | 1595 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1596 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1597 | m->exit_code = MANAGER_EXIT; |
1598 | return 0; | |
1599 | } | |
1600 | ||
1601 | break; | |
84e9af1e | 1602 | |
28247076 | 1603 | case SIGWINCH: |
67445f4e | 1604 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1605 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1606 | |
28247076 LP |
1607 | /* This is a nop on non-init */ |
1608 | break; | |
84e9af1e | 1609 | |
28247076 | 1610 | case SIGPWR: |
67445f4e | 1611 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1612 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1613 | |
28247076 | 1614 | /* This is a nop on non-init */ |
84e9af1e | 1615 | break; |
6632c602 | 1616 | |
1005d14f | 1617 | case SIGUSR1: { |
57ee42ce LP |
1618 | Unit *u; |
1619 | ||
1620 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1621 | ||
1622 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1623 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1624 | bus_init(m, true); |
57ee42ce LP |
1625 | } |
1626 | ||
1627 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1628 | log_info("Loading D-Bus service..."); | |
7d793605 | 1629 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1630 | } |
1631 | ||
1632 | break; | |
1633 | } | |
1634 | ||
2149e37c | 1635 | case SIGUSR2: { |
718db961 LP |
1636 | _cleanup_free_ char *dump = NULL; |
1637 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1638 | size_t size; |
1639 | ||
718db961 LP |
1640 | f = open_memstream(&dump, &size); |
1641 | if (!f) { | |
2149e37c LP |
1642 | log_warning("Failed to allocate memory stream."); |
1643 | break; | |
1644 | } | |
1645 | ||
1646 | manager_dump_units(m, f, "\t"); | |
1647 | manager_dump_jobs(m, f, "\t"); | |
1648 | ||
1649 | if (ferror(f)) { | |
2149e37c LP |
1650 | log_warning("Failed to write status stream"); |
1651 | break; | |
1652 | } | |
1653 | ||
b2cdc666 DM |
1654 | if (fflush(f)) { |
1655 | log_warning("Failed to flush status stream"); | |
1656 | break; | |
1657 | } | |
1658 | ||
2149e37c | 1659 | log_dump(LOG_INFO, dump); |
1005d14f | 1660 | break; |
2149e37c | 1661 | } |
1005d14f | 1662 | |
a16e1123 LP |
1663 | case SIGHUP: |
1664 | m->exit_code = MANAGER_RELOAD; | |
1665 | break; | |
1666 | ||
7d793605 | 1667 | default: { |
253ee27a | 1668 | |
0003d1ab LP |
1669 | /* Starting SIGRTMIN+0 */ |
1670 | static const char * const target_table[] = { | |
7d793605 LP |
1671 | [0] = SPECIAL_DEFAULT_TARGET, |
1672 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1673 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1674 | [3] = SPECIAL_HALT_TARGET, |
1675 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1676 | [5] = SPECIAL_REBOOT_TARGET, |
1677 | [6] = SPECIAL_KEXEC_TARGET | |
1678 | }; | |
1679 | ||
1680 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1681 | static const ManagerExitCode code_table[] = { | |
1682 | [0] = MANAGER_HALT, | |
1683 | [1] = MANAGER_POWEROFF, | |
1684 | [2] = MANAGER_REBOOT, | |
1685 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1686 | }; |
1687 | ||
1688 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1689 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1690 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1691 | manager_start_target(m, target_table[idx], | |
1692 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1693 | break; |
1694 | } | |
1695 | ||
0003d1ab LP |
1696 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1697 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1698 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1699 | break; | |
1700 | } | |
1701 | ||
0658666b LP |
1702 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1703 | ||
1704 | case 20: | |
1705 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1706 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1707 | break; |
1708 | ||
1709 | case 21: | |
1710 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1711 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1712 | break; |
1713 | ||
253ee27a LP |
1714 | case 22: |
1715 | log_set_max_level(LOG_DEBUG); | |
1716 | log_notice("Setting log level to debug."); | |
1717 | break; | |
1718 | ||
1719 | case 23: | |
1720 | log_set_max_level(LOG_INFO); | |
1721 | log_notice("Setting log level to info."); | |
1722 | break; | |
1723 | ||
600b704e LP |
1724 | case 24: |
1725 | if (m->running_as == SYSTEMD_USER) { | |
1726 | m->exit_code = MANAGER_EXIT; | |
1727 | return 0; | |
1728 | } | |
1729 | ||
1730 | /* This is a nop on init */ | |
1731 | break; | |
1732 | ||
4cfa2c99 | 1733 | case 26: |
c1dc6153 | 1734 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ |
4cfa2c99 LP |
1735 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
1736 | log_notice("Setting log target to journal-or-kmsg."); | |
1737 | break; | |
1738 | ||
253ee27a LP |
1739 | case 27: |
1740 | log_set_target(LOG_TARGET_CONSOLE); | |
1741 | log_notice("Setting log target to console."); | |
1742 | break; | |
1743 | ||
1744 | case 28: | |
1745 | log_set_target(LOG_TARGET_KMSG); | |
1746 | log_notice("Setting log target to kmsg."); | |
1747 | break; | |
1748 | ||
0658666b | 1749 | default: |
4e240ab0 | 1750 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1751 | } |
b9cd2ec1 | 1752 | } |
7d793605 | 1753 | } |
9152c765 LP |
1754 | } |
1755 | ||
1756 | if (sigchld) | |
7b77ed8c | 1757 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1758 | |
1759 | return 0; | |
1760 | } | |
1761 | ||
718db961 LP |
1762 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1763 | Manager *m = userdata; | |
1764 | Iterator i; | |
1765 | Unit *u; | |
034c6ed7 LP |
1766 | |
1767 | assert(m); | |
718db961 | 1768 | assert(m->time_change_fd == fd); |
034c6ed7 | 1769 | |
718db961 LP |
1770 | log_struct(LOG_INFO, |
1771 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1772 | "MESSAGE=Time has been changed", | |
1773 | NULL); | |
034c6ed7 | 1774 | |
718db961 LP |
1775 | /* Restart the watch */ |
1776 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
03e334a1 | 1777 | m->time_change_fd = safe_close(m->time_change_fd); |
ef734fd6 | 1778 | |
718db961 | 1779 | manager_setup_time_change(m); |
4e434314 | 1780 | |
718db961 LP |
1781 | HASHMAP_FOREACH(u, m->units, i) |
1782 | if (UNIT_VTABLE(u)->time_change) | |
1783 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1784 | |
718db961 LP |
1785 | return 0; |
1786 | } | |
ea430986 | 1787 | |
718db961 LP |
1788 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1789 | Manager *m = userdata; | |
8742514c | 1790 | |
718db961 LP |
1791 | assert(m); |
1792 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1793 | |
718db961 | 1794 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1795 | |
718db961 LP |
1796 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1797 | manager_close_idle_pipe(m); | |
03b717a3 | 1798 | |
718db961 LP |
1799 | return 0; |
1800 | } | |
31a7eb86 | 1801 | |
718db961 LP |
1802 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1803 | Manager *m = userdata; | |
fd08a840 ZJS |
1804 | int r; |
1805 | uint64_t next; | |
31a7eb86 | 1806 | |
718db961 | 1807 | assert(m); |
fd08a840 | 1808 | assert(source); |
9152c765 | 1809 | |
718db961 | 1810 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1811 | |
1812 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1813 | r = sd_event_source_set_time(source, next); | |
1814 | if (r < 0) | |
1815 | return r; | |
1816 | ||
1817 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1818 | } |
1819 | ||
1820 | int manager_loop(Manager *m) { | |
1821 | int r; | |
9152c765 | 1822 | |
fac9f8df | 1823 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1824 | |
9152c765 | 1825 | assert(m); |
f755e3b7 | 1826 | m->exit_code = MANAGER_OK; |
9152c765 | 1827 | |
fe51822e LP |
1828 | /* Release the path cache */ |
1829 | set_free_free(m->unit_path_cache); | |
1830 | m->unit_path_cache = NULL; | |
1831 | ||
b0c918b9 LP |
1832 | manager_check_finished(m); |
1833 | ||
a4312405 | 1834 | /* There might still be some zombies hanging around from |
f3669545 | 1835 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1836 | r = manager_dispatch_sigchld(m); |
1837 | if (r < 0) | |
a4312405 LP |
1838 | return r; |
1839 | ||
f755e3b7 | 1840 | while (m->exit_code == MANAGER_OK) { |
718db961 | 1841 | usec_t wait_usec; |
9152c765 | 1842 | |
67445f4e | 1843 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1844 | watchdog_ping(); |
1845 | ||
ea430986 LP |
1846 | if (!ratelimit_test(&rl)) { |
1847 | /* Yay, something is going seriously wrong, pause a little */ | |
1848 | log_warning("Looping too fast. Throttling execution a little."); | |
1849 | sleep(1); | |
e96d6be7 | 1850 | continue; |
ea430986 LP |
1851 | } |
1852 | ||
37a8e683 | 1853 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1854 | continue; |
1855 | ||
cf1265e1 | 1856 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1857 | continue; |
1858 | ||
cf1265e1 | 1859 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1860 | continue; |
034c6ed7 | 1861 | |
cf1265e1 | 1862 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1863 | continue; |
1864 | ||
c1e1601e | 1865 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1866 | continue; |
ea430986 | 1867 | |
c757a65b | 1868 | /* Sleep for half the watchdog time */ |
67445f4e | 1869 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1870 | wait_usec = m->runtime_watchdog / 2; |
1871 | if (wait_usec <= 0) | |
1872 | wait_usec = 1; | |
c757a65b | 1873 | } else |
3a43da28 | 1874 | wait_usec = USEC_INFINITY; |
9152c765 | 1875 | |
718db961 LP |
1876 | r = sd_event_run(m->event, wait_usec); |
1877 | if (r < 0) { | |
1878 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1879 | return r; |
718db961 | 1880 | } |
a16e1123 | 1881 | } |
957ca890 | 1882 | |
a16e1123 | 1883 | return m->exit_code; |
83c60c9f | 1884 | } |
ea430986 | 1885 | |
718db961 | 1886 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1887 | _cleanup_free_ char *n = NULL; |
ea430986 | 1888 | Unit *u; |
80fbf05e | 1889 | int r; |
ea430986 LP |
1890 | |
1891 | assert(m); | |
1892 | assert(s); | |
1893 | assert(_u); | |
1894 | ||
ede3a796 LP |
1895 | r = unit_name_from_dbus_path(s, &n); |
1896 | if (r < 0) | |
1897 | return r; | |
ea430986 | 1898 | |
80fbf05e | 1899 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1900 | if (r < 0) |
1901 | return r; | |
ea430986 LP |
1902 | |
1903 | *_u = u; | |
1904 | ||
1905 | return 0; | |
1906 | } | |
86fbf370 LP |
1907 | |
1908 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1909 | const char *p; |
86fbf370 | 1910 | unsigned id; |
718db961 | 1911 | Job *j; |
86fbf370 LP |
1912 | int r; |
1913 | ||
1914 | assert(m); | |
1915 | assert(s); | |
1916 | assert(_j); | |
1917 | ||
718db961 LP |
1918 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1919 | if (!p) | |
86fbf370 LP |
1920 | return -EINVAL; |
1921 | ||
718db961 | 1922 | r = safe_atou(p, &id); |
8742514c | 1923 | if (r < 0) |
86fbf370 LP |
1924 | return r; |
1925 | ||
8742514c LP |
1926 | j = manager_get_job(m, id); |
1927 | if (!j) | |
86fbf370 LP |
1928 | return -ENOENT; |
1929 | ||
1930 | *_j = j; | |
1931 | ||
1932 | return 0; | |
1933 | } | |
dfcd764e | 1934 | |
4927fcae | 1935 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1936 | |
4927fcae | 1937 | #ifdef HAVE_AUDIT |
2ba11090 | 1938 | _cleanup_free_ char *p = NULL; |
c1165f82 | 1939 | int audit_fd; |
e537352b | 1940 | |
c1165f82 LP |
1941 | audit_fd = get_audit_fd(); |
1942 | if (audit_fd < 0) | |
e537352b LP |
1943 | return; |
1944 | ||
bbd3a7ba LP |
1945 | /* Don't generate audit events if the service was already |
1946 | * started and we're just deserializing */ | |
a7556052 | 1947 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1948 | return; |
1949 | ||
67445f4e | 1950 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1951 | return; |
1952 | ||
ac155bb8 | 1953 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1954 | return; |
1955 | ||
bd0af849 ZJS |
1956 | p = unit_name_to_prefix_and_instance(u->id); |
1957 | if (!p) { | |
66870f90 ZJS |
1958 | log_error_unit(u->id, |
1959 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1960 | return; |
1961 | } | |
1962 | ||
c1165f82 | 1963 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1964 | if (errno == EPERM) { |
1965 | /* We aren't allowed to send audit messages? | |
44785992 | 1966 | * Then let's not retry again. */ |
c1165f82 | 1967 | close_audit_fd(); |
44785992 LP |
1968 | } else |
1969 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1970 | } |
4927fcae | 1971 | #endif |
e537352b | 1972 | |
e537352b LP |
1973 | } |
1974 | ||
e983b760 | 1975 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1d749d04 | 1976 | union sockaddr_union sa = PLYMOUTH_SOCKET; |
2ba11090 | 1977 | |
e983b760 | 1978 | int n = 0; |
2ba11090 ZJS |
1979 | _cleanup_free_ char *message = NULL; |
1980 | _cleanup_close_ int fd = -1; | |
e983b760 LP |
1981 | |
1982 | /* Don't generate plymouth events if the service was already | |
1983 | * started and we're just deserializing */ | |
a7556052 | 1984 | if (m->n_reloading > 0) |
e983b760 LP |
1985 | return; |
1986 | ||
67445f4e | 1987 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1988 | return; |
1989 | ||
3772995a LP |
1990 | if (detect_container(NULL) > 0) |
1991 | return; | |
1992 | ||
ac155bb8 MS |
1993 | if (u->type != UNIT_SERVICE && |
1994 | u->type != UNIT_MOUNT && | |
1995 | u->type != UNIT_SWAP) | |
e983b760 LP |
1996 | return; |
1997 | ||
1998 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1999 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
2000 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
2001 | if (fd < 0) { | |
e983b760 LP |
2002 | log_error("socket() failed: %m"); |
2003 | return; | |
2004 | } | |
2005 | ||
96707269 | 2006 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
e983b760 | 2007 | |
2ba11090 | 2008 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
e983b760 | 2009 | log_error("connect() failed: %m"); |
2ba11090 | 2010 | return; |
e983b760 LP |
2011 | } |
2012 | ||
ac155bb8 | 2013 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2014 | log_oom(); |
2ba11090 | 2015 | return; |
e983b760 LP |
2016 | } |
2017 | ||
2018 | errno = 0; | |
2ba11090 ZJS |
2019 | if (write(fd, message, n + 1) != n + 1) |
2020 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
e983b760 | 2021 | log_error("Failed to write Plymouth message: %m"); |
e983b760 LP |
2022 | } |
2023 | ||
05e343b7 LP |
2024 | void manager_dispatch_bus_name_owner_changed( |
2025 | Manager *m, | |
2026 | const char *name, | |
2027 | const char* old_owner, | |
2028 | const char *new_owner) { | |
2029 | ||
2030 | Unit *u; | |
2031 | ||
2032 | assert(m); | |
2033 | assert(name); | |
2034 | ||
718db961 LP |
2035 | u = hashmap_get(m->watch_bus, name); |
2036 | if (!u) | |
05e343b7 LP |
2037 | return; |
2038 | ||
2039 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2040 | } | |
2041 | ||
d8d5ab98 | 2042 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2043 | const char *path; |
df28bc08 | 2044 | int fd = -1; |
a16e1123 LP |
2045 | FILE *f; |
2046 | ||
2047 | assert(_f); | |
2048 | ||
8e33886e ZJS |
2049 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2050 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2051 | if (fd < 0) |
a16e1123 | 2052 | return -errno; |
a16e1123 | 2053 | |
a16e1123 | 2054 | log_debug("Serializing state to %s", path); |
a16e1123 | 2055 | |
01e10de3 | 2056 | f = fdopen(fd, "w+"); |
d86f9d52 | 2057 | if (!f) { |
03e334a1 | 2058 | safe_close(fd); |
a16e1123 | 2059 | return -errno; |
d86f9d52 | 2060 | } |
a16e1123 LP |
2061 | |
2062 | *_f = f; | |
2063 | ||
2064 | return 0; | |
2065 | } | |
2066 | ||
b3680f49 | 2067 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2068 | Iterator i; |
2069 | Unit *u; | |
2070 | const char *t; | |
4a9fd066 | 2071 | char **e; |
a16e1123 LP |
2072 | int r; |
2073 | ||
2074 | assert(m); | |
2075 | assert(f); | |
2076 | assert(fds); | |
2077 | ||
a7556052 | 2078 | m->n_reloading ++; |
38c52d46 | 2079 | |
01d67b43 LP |
2080 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2081 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2082 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2083 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2084 | |
915b3753 | 2085 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2086 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2087 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2088 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2089 | |
26a1efdf | 2090 | if (!in_initrd()) { |
915b3753 | 2091 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2092 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2093 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2094 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2095 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2096 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2097 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2098 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2099 | } |
47a483a1 | 2100 | |
b3680f49 HH |
2101 | if (!switching_root) { |
2102 | STRV_FOREACH(e, m->environment) { | |
2103 | _cleanup_free_ char *ce; | |
4a9fd066 | 2104 | |
b3680f49 | 2105 | ce = cescape(*e); |
e3dd987c LP |
2106 | if (!ce) |
2107 | return -ENOMEM; | |
2108 | ||
2109 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2110 | } |
4a9fd066 OS |
2111 | } |
2112 | ||
d86f9d52 LP |
2113 | if (m->notify_fd >= 0) { |
2114 | int copy; | |
2115 | ||
2116 | copy = fdset_put_dup(fds, m->notify_fd); | |
2117 | if (copy < 0) | |
2118 | return copy; | |
2119 | ||
2120 | fprintf(f, "notify-fd=%i\n", copy); | |
2121 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2122 | } | |
2123 | ||
e3dd987c LP |
2124 | if (m->kdbus_fd >= 0) { |
2125 | int copy; | |
2126 | ||
2127 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2128 | if (copy < 0) | |
2129 | return copy; | |
2130 | ||
2131 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2132 | } | |
2133 | ||
8f8f05a9 | 2134 | bus_track_serialize(m->subscribed, f); |
6fa48533 | 2135 | |
f2382a94 LP |
2136 | fputc('\n', f); |
2137 | ||
a16e1123 | 2138 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2139 | if (u->id != t) |
a16e1123 LP |
2140 | continue; |
2141 | ||
a16e1123 | 2142 | /* Start marker */ |
ac155bb8 | 2143 | fputs(u->id, f); |
a16e1123 LP |
2144 | fputc('\n', f); |
2145 | ||
6fa48533 LP |
2146 | r = unit_serialize(u, f, fds, !switching_root); |
2147 | if (r < 0) { | |
a7556052 | 2148 | m->n_reloading --; |
a16e1123 | 2149 | return r; |
38c52d46 | 2150 | } |
a16e1123 LP |
2151 | } |
2152 | ||
a7556052 LP |
2153 | assert(m->n_reloading > 0); |
2154 | m->n_reloading --; | |
38c52d46 | 2155 | |
a16e1123 LP |
2156 | if (ferror(f)) |
2157 | return -EIO; | |
2158 | ||
b23de6af LP |
2159 | r = bus_fdset_add_all(m, fds); |
2160 | if (r < 0) | |
2161 | return r; | |
2162 | ||
a16e1123 LP |
2163 | return 0; |
2164 | } | |
2165 | ||
2166 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2167 | int r = 0; | |
2168 | ||
2169 | assert(m); | |
2170 | assert(f); | |
2171 | ||
2172 | log_debug("Deserializing state..."); | |
2173 | ||
a7556052 | 2174 | m->n_reloading ++; |
82c64bf5 | 2175 | |
10f8e83c | 2176 | for (;;) { |
20c03b7b | 2177 | char line[LINE_MAX], *l; |
10f8e83c LP |
2178 | |
2179 | if (!fgets(line, sizeof(line), f)) { | |
2180 | if (feof(f)) | |
2181 | r = 0; | |
2182 | else | |
2183 | r = -errno; | |
2184 | ||
2185 | goto finish; | |
2186 | } | |
2187 | ||
2188 | char_array_0(line); | |
2189 | l = strstrip(line); | |
2190 | ||
2191 | if (l[0] == 0) | |
2192 | break; | |
2193 | ||
01d67b43 LP |
2194 | if (startswith(l, "current-job-id=")) { |
2195 | uint32_t id; | |
2196 | ||
2197 | if (safe_atou32(l+15, &id) < 0) | |
2198 | log_debug("Failed to parse current job id value %s", l+15); | |
2199 | else | |
2200 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2201 | |
33c5fae9 LP |
2202 | } else if (startswith(l, "n-installed-jobs=")) { |
2203 | uint32_t n; | |
2204 | ||
2205 | if (safe_atou32(l+17, &n) < 0) | |
2206 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2207 | else | |
2208 | m->n_installed_jobs += n; | |
718db961 | 2209 | |
33c5fae9 LP |
2210 | } else if (startswith(l, "n-failed-jobs=")) { |
2211 | uint32_t n; | |
2212 | ||
2213 | if (safe_atou32(l+14, &n) < 0) | |
2214 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2215 | else | |
2216 | m->n_failed_jobs += n; | |
718db961 | 2217 | |
01d67b43 LP |
2218 | } else if (startswith(l, "taint-usr=")) { |
2219 | int b; | |
2220 | ||
e3dd987c LP |
2221 | b = parse_boolean(l+10); |
2222 | if (b < 0) | |
01d67b43 LP |
2223 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2224 | else | |
2225 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2226 | |
915b3753 LP |
2227 | } else if (startswith(l, "firmware-timestamp=")) |
2228 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2229 | else if (startswith(l, "loader-timestamp=")) | |
2230 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2231 | else if (startswith(l, "kernel-timestamp=")) | |
2232 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2233 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2234 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2235 | else if (startswith(l, "userspace-timestamp=")) |
2236 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2237 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2238 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2239 | else if (startswith(l, "security-start-timestamp=")) |
2240 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2241 | else if (startswith(l, "security-finish-timestamp=")) | |
2242 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2243 | else if (startswith(l, "generators-start-timestamp=")) | |
2244 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2245 | else if (startswith(l, "generators-finish-timestamp=")) | |
2246 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2247 | else if (startswith(l, "units-load-start-timestamp=")) | |
2248 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2249 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2250 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2251 | else if (startswith(l, "env=")) { |
2252 | _cleanup_free_ char *uce = NULL; | |
2253 | char **e; | |
2254 | ||
2255 | uce = cunescape(l+4); | |
2256 | if (!uce) { | |
2257 | r = -ENOMEM; | |
2258 | goto finish; | |
2259 | } | |
2260 | ||
2261 | e = strv_env_set(m->environment, uce); | |
2262 | if (!e) { | |
2263 | r = -ENOMEM; | |
2264 | goto finish; | |
2265 | } | |
2266 | ||
2267 | strv_free(m->environment); | |
2268 | m->environment = e; | |
e3dd987c | 2269 | |
d86f9d52 LP |
2270 | } else if (startswith(l, "notify-fd=")) { |
2271 | int fd; | |
2272 | ||
2273 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2274 | log_debug("Failed to parse notify fd: %s", l + 10); | |
2275 | else { | |
03e334a1 LP |
2276 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
2277 | safe_close(m->notify_fd); | |
d86f9d52 LP |
2278 | m->notify_fd = fdset_remove(fds, fd); |
2279 | } | |
2280 | ||
2281 | } else if (startswith(l, "notify-socket=")) { | |
2282 | char *n; | |
2283 | ||
2284 | n = strdup(l+14); | |
2285 | if (!n) { | |
2286 | r = -ENOMEM; | |
2287 | goto finish; | |
2288 | } | |
2289 | ||
2290 | free(m->notify_socket); | |
2291 | m->notify_socket = n; | |
2292 | ||
e3dd987c LP |
2293 | } else if (startswith(l, "kdbus-fd=")) { |
2294 | int fd; | |
2295 | ||
8bf9fcf4 | 2296 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2297 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2298 | else { | |
03e334a1 | 2299 | safe_close(m->kdbus_fd); |
e3dd987c LP |
2300 | m->kdbus_fd = fdset_remove(fds, fd); |
2301 | } | |
2302 | ||
8f8f05a9 | 2303 | } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0) |
10f8e83c LP |
2304 | log_debug("Unknown serialization item '%s'", l); |
2305 | } | |
2306 | ||
a16e1123 LP |
2307 | for (;;) { |
2308 | Unit *u; | |
2309 | char name[UNIT_NAME_MAX+2]; | |
2310 | ||
2311 | /* Start marker */ | |
2312 | if (!fgets(name, sizeof(name), f)) { | |
2313 | if (feof(f)) | |
10f8e83c LP |
2314 | r = 0; |
2315 | else | |
2316 | r = -errno; | |
a16e1123 | 2317 | |
82c64bf5 | 2318 | goto finish; |
a16e1123 LP |
2319 | } |
2320 | ||
2321 | char_array_0(name); | |
2322 | ||
bd0af849 ZJS |
2323 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2324 | if (r < 0) | |
82c64bf5 | 2325 | goto finish; |
a16e1123 | 2326 | |
01e10de3 LP |
2327 | r = unit_deserialize(u, f, fds); |
2328 | if (r < 0) | |
82c64bf5 | 2329 | goto finish; |
a16e1123 LP |
2330 | } |
2331 | ||
10f8e83c | 2332 | finish: |
145b1f79 | 2333 | if (ferror(f)) |
82c64bf5 | 2334 | r = -EIO; |
a16e1123 | 2335 | |
a7556052 LP |
2336 | assert(m->n_reloading > 0); |
2337 | m->n_reloading --; | |
82c64bf5 LP |
2338 | |
2339 | return r; | |
a16e1123 LP |
2340 | } |
2341 | ||
2342 | int manager_reload(Manager *m) { | |
2343 | int r, q; | |
51d122af ZJS |
2344 | _cleanup_fclose_ FILE *f = NULL; |
2345 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2346 | |
2347 | assert(m); | |
2348 | ||
07719a21 LP |
2349 | r = manager_open_serialization(m, &f); |
2350 | if (r < 0) | |
a16e1123 LP |
2351 | return r; |
2352 | ||
a7556052 | 2353 | m->n_reloading ++; |
718db961 | 2354 | bus_manager_send_reloading(m, true); |
38c52d46 | 2355 | |
07719a21 LP |
2356 | fds = fdset_new(); |
2357 | if (!fds) { | |
a7556052 | 2358 | m->n_reloading --; |
51d122af | 2359 | return -ENOMEM; |
a16e1123 LP |
2360 | } |
2361 | ||
b3680f49 | 2362 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2363 | if (r < 0) { |
a7556052 | 2364 | m->n_reloading --; |
51d122af | 2365 | return r; |
38c52d46 | 2366 | } |
a16e1123 LP |
2367 | |
2368 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2369 | m->n_reloading --; |
51d122af | 2370 | return -errno; |
a16e1123 LP |
2371 | } |
2372 | ||
2373 | /* From here on there is no way back. */ | |
2374 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2375 | manager_undo_generators(m); |
84e3543e | 2376 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2377 | |
07719a21 | 2378 | /* Find new unit paths */ |
5a1e9937 LP |
2379 | manager_run_generators(m); |
2380 | ||
07719a21 LP |
2381 | q = lookup_paths_init( |
2382 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 2383 | NULL, |
07719a21 LP |
2384 | m->generator_unit_path, |
2385 | m->generator_unit_path_early, | |
2386 | m->generator_unit_path_late); | |
2387 | if (q < 0) | |
2388 | r = q; | |
2389 | ||
5a1e9937 LP |
2390 | manager_build_unit_path_cache(m); |
2391 | ||
a16e1123 | 2392 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2393 | q = manager_enumerate(m); |
2394 | if (q < 0) | |
a16e1123 LP |
2395 | r = q; |
2396 | ||
2397 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2398 | q = manager_deserialize(m, f, fds); |
2399 | if (q < 0) | |
a16e1123 LP |
2400 | r = q; |
2401 | ||
2402 | fclose(f); | |
2403 | f = NULL; | |
2404 | ||
a2cc4a6c ZJS |
2405 | /* Re-register notify_fd as event source */ |
2406 | q = manager_setup_notify(m); | |
2407 | if (q < 0) | |
2408 | r = q; | |
2409 | ||
a16e1123 | 2410 | /* Third, fire things up! */ |
07719a21 LP |
2411 | q = manager_coldplug(m); |
2412 | if (q < 0) | |
a16e1123 LP |
2413 | r = q; |
2414 | ||
a7556052 LP |
2415 | assert(m->n_reloading > 0); |
2416 | m->n_reloading--; | |
9f611ad8 | 2417 | |
71445ae7 LP |
2418 | m->send_reloading_done = true; |
2419 | ||
a16e1123 LP |
2420 | return r; |
2421 | } | |
2422 | ||
c17ec25e MS |
2423 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2424 | assert(m); | |
2425 | ||
2426 | return m->n_reloading != 0; | |
2427 | } | |
2428 | ||
fdf20a31 | 2429 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2430 | Unit *u; |
2431 | Iterator i; | |
2432 | ||
2433 | assert(m); | |
2434 | ||
2435 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2436 | unit_reset_failed(u); |
5632e374 LP |
2437 | } |
2438 | ||
31afa0a4 | 2439 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2440 | Unit *u; |
2441 | ||
2442 | assert(m); | |
2443 | assert(name); | |
2444 | ||
2445 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2446 | u = manager_get_unit(m, name); |
2447 | if (!u) | |
8f6df3fa LP |
2448 | return true; |
2449 | ||
31afa0a4 | 2450 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2451 | } |
2452 | ||
b0c918b9 | 2453 | void manager_check_finished(Manager *m) { |
7ceba241 | 2454 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2455 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
95ae05c0 WC |
2456 | Unit *u = NULL; |
2457 | Iterator i; | |
b0c918b9 LP |
2458 | |
2459 | assert(m); | |
2460 | ||
a0b64226 | 2461 | if (m->n_running_jobs == 0) |
718db961 | 2462 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2463 | |
828db5d8 | 2464 | if (hashmap_size(m->jobs) > 0) { |
f755e3b7 | 2465 | |
fd08a840 | 2466 | if (m->jobs_in_progress_event_source) { |
f755e3b7 LP |
2467 | sd_event_source_set_time(m->jobs_in_progress_event_source, |
2468 | now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
fd08a840 | 2469 | } |
f755e3b7 | 2470 | |
b0c918b9 | 2471 | return; |
5b176ee0 | 2472 | } |
b0c918b9 | 2473 | |
cb8ccb22 | 2474 | manager_flip_auto_status(m, false); |
d450b6f2 | 2475 | |
f2b68789 | 2476 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2477 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2478 | manager_close_idle_pipe(m); | |
f2b68789 | 2479 | |
af6da548 LP |
2480 | /* Turn off confirm spawn now */ |
2481 | m->confirm_spawn = false; | |
2482 | ||
418b9be5 | 2483 | /* This is no longer the first boot */ |
e2680723 | 2484 | manager_set_first_boot(m, false); |
418b9be5 | 2485 | |
f2b68789 | 2486 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2487 | return; |
2488 | ||
2489 | dual_timestamp_get(&m->finish_timestamp); | |
2490 | ||
67445f4e | 2491 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2492 | |
915b3753 LP |
2493 | /* Note that m->kernel_usec.monotonic is always at 0, |
2494 | * and m->firmware_usec.monotonic and | |
2495 | * m->loader_usec.monotonic should be considered | |
2496 | * negative values. */ | |
2497 | ||
7ceba241 LP |
2498 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2499 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2500 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2501 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2502 | |
e9ddabc2 | 2503 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2504 | |
915b3753 LP |
2505 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2506 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2507 | |
81270860 LP |
2508 | if (!log_on_console()) |
2509 | log_struct(LOG_INFO, | |
1ca6783f | 2510 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2511 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2512 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2513 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2514 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2fa4092c LP |
2515 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2516 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2517 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2518 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2519 | NULL); |
18fa6b27 | 2520 | } else { |
915b3753 | 2521 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2522 | initrd_usec = 0; |
2523 | ||
81270860 LP |
2524 | if (!log_on_console()) |
2525 | log_struct(LOG_INFO, | |
1ca6783f | 2526 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2527 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2528 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2529 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2fa4092c LP |
2530 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2531 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2532 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2533 | NULL); |
18fa6b27 LP |
2534 | } |
2535 | } else { | |
915b3753 LP |
2536 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2537 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2538 | |
81270860 LP |
2539 | if (!log_on_console()) |
2540 | log_struct(LOG_INFO, | |
1ca6783f | 2541 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 | 2542 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
81270860 | 2543 | "MESSAGE=Startup finished in %s.", |
2fa4092c | 2544 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2545 | NULL); |
18fa6b27 | 2546 | } |
b0c918b9 | 2547 | |
db785129 | 2548 | SET_FOREACH(u, m->startup_units, i) |
285cd771 UTL |
2549 | if (u->cgroup_path) |
2550 | cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m)); | |
95ae05c0 | 2551 | |
718db961 | 2552 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2553 | |
2554 | sd_notifyf(false, | |
2555 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2556 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2557 | } |
2558 | ||
07719a21 LP |
2559 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2560 | char *p; | |
2561 | int r; | |
2562 | ||
2563 | assert(m); | |
2564 | assert(generator); | |
2565 | assert(name); | |
2566 | ||
2567 | if (*generator) | |
2568 | return 0; | |
2569 | ||
67445f4e | 2570 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2571 | /* systemd --system, not running --test */ |
07719a21 LP |
2572 | |
2573 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2574 | if (!p) |
2575 | return log_oom(); | |
07719a21 | 2576 | |
fcc81ea3 KS |
2577 | r = mkdir_p_label(p, 0755); |
2578 | if (r < 0) { | |
2579 | log_error("Failed to create generator directory %s: %s", | |
2580 | p, strerror(-r)); | |
2581 | free(p); | |
2582 | return r; | |
2583 | } | |
2584 | } else if (m->running_as == SYSTEMD_USER) { | |
2585 | const char *s = NULL; | |
2586 | ||
2587 | s = getenv("XDG_RUNTIME_DIR"); | |
2588 | if (!s) | |
2589 | return -EINVAL; | |
2590 | p = strjoin(s, "/systemd/", name, NULL); | |
2591 | if (!p) | |
2592 | return log_oom(); | |
2593 | ||
d2e54fae | 2594 | r = mkdir_p_label(p, 0755); |
07719a21 | 2595 | if (r < 0) { |
7ad94c71 ZJS |
2596 | log_error("Failed to create generator directory %s: %s", |
2597 | p, strerror(-r)); | |
07719a21 LP |
2598 | free(p); |
2599 | return r; | |
2600 | } | |
2601 | } else { | |
fcc81ea3 KS |
2602 | /* systemd --system --test */ |
2603 | ||
b7def684 | 2604 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2605 | if (!p) |
2606 | return log_oom(); | |
07719a21 LP |
2607 | |
2608 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2609 | log_error("Failed to create generator directory %s: %m", |
2610 | p); | |
34bf0281 | 2611 | free(p); |
07719a21 LP |
2612 | return -errno; |
2613 | } | |
2614 | } | |
2615 | ||
2616 | *generator = p; | |
2617 | return 0; | |
2618 | } | |
2619 | ||
2620 | static void trim_generator_dir(Manager *m, char **generator) { | |
2621 | assert(m); | |
2622 | assert(generator); | |
2623 | ||
2624 | if (!*generator) | |
2625 | return; | |
2626 | ||
2627 | if (rmdir(*generator) >= 0) { | |
2628 | free(*generator); | |
2629 | *generator = NULL; | |
2630 | } | |
2631 | ||
2632 | return; | |
2633 | } | |
2634 | ||
5a1e9937 | 2635 | void manager_run_generators(Manager *m) { |
718db961 | 2636 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2637 | const char *generator_path; |
07719a21 | 2638 | const char *argv[5]; |
07719a21 | 2639 | int r; |
5a1e9937 LP |
2640 | |
2641 | assert(m); | |
2642 | ||
0d8c31ff ZJS |
2643 | if (m->test_run) |
2644 | return; | |
2645 | ||
67445f4e | 2646 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2647 | d = opendir(generator_path); |
2648 | if (!d) { | |
5a1e9937 LP |
2649 | if (errno == ENOENT) |
2650 | return; | |
2651 | ||
7ad94c71 ZJS |
2652 | log_error("Failed to enumerate generator directory %s: %m", |
2653 | generator_path); | |
5a1e9937 LP |
2654 | return; |
2655 | } | |
2656 | ||
07719a21 LP |
2657 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2658 | if (r < 0) | |
2659 | goto finish; | |
f1d19aa4 | 2660 | |
07719a21 LP |
2661 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2662 | if (r < 0) | |
2663 | goto finish; | |
5a1e9937 | 2664 | |
07719a21 LP |
2665 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2666 | if (r < 0) | |
2667 | goto finish; | |
5a1e9937 | 2668 | |
83cc030f LP |
2669 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2670 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2671 | argv[2] = m->generator_unit_path_early; |
2672 | argv[3] = m->generator_unit_path_late; | |
2673 | argv[4] = NULL; | |
5a1e9937 | 2674 | |
718db961 | 2675 | RUN_WITH_UMASK(0022) |
e2680723 | 2676 | execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv); |
5a1e9937 | 2677 | |
718db961 | 2678 | finish: |
07719a21 LP |
2679 | trim_generator_dir(m, &m->generator_unit_path); |
2680 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2681 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2682 | } |
2683 | ||
07719a21 | 2684 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2685 | assert(m); |
07719a21 | 2686 | assert(generator); |
5a1e9937 | 2687 | |
07719a21 | 2688 | if (!*generator) |
5a1e9937 LP |
2689 | return; |
2690 | ||
07719a21 LP |
2691 | strv_remove(m->lookup_paths.unit_path, *generator); |
2692 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2693 | |
07719a21 LP |
2694 | free(*generator); |
2695 | *generator = NULL; | |
2696 | } | |
2697 | ||
2698 | void manager_undo_generators(Manager *m) { | |
2699 | assert(m); | |
2700 | ||
2701 | remove_generator_dir(m, &m->generator_unit_path); | |
2702 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2703 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2704 | } |
2705 | ||
718db961 LP |
2706 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2707 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2708 | assert(m); |
bcd8e6d1 | 2709 | |
718db961 | 2710 | l = m->environment; |
bcd8e6d1 | 2711 | |
718db961 LP |
2712 | if (!strv_isempty(minus)) { |
2713 | a = strv_env_delete(l, 1, minus); | |
2714 | if (!a) | |
2715 | return -ENOMEM; | |
2716 | ||
2717 | l = a; | |
2718 | } | |
2719 | ||
2720 | if (!strv_isempty(plus)) { | |
2721 | b = strv_env_merge(2, l, plus); | |
2722 | if (!b) | |
2723 | return -ENOMEM; | |
bcd8e6d1 | 2724 | |
718db961 LP |
2725 | l = b; |
2726 | } | |
2727 | ||
2728 | if (m->environment != l) | |
2729 | strv_free(m->environment); | |
2730 | if (a != l) | |
2731 | strv_free(a); | |
2732 | if (b != l) | |
2733 | strv_free(b); | |
2734 | ||
f069efb4 LP |
2735 | m->environment = l; |
2736 | manager_clean_environment(m); | |
2737 | strv_sort(m->environment); | |
2738 | ||
97d0e5f8 UTL |
2739 | return 0; |
2740 | } | |
2741 | ||
c93ff2e9 FC |
2742 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2743 | int i; | |
2744 | ||
2745 | assert(m); | |
2746 | ||
517d56b1 | 2747 | for (i = 0; i < _RLIMIT_MAX; i++) { |
07719a21 LP |
2748 | if (!default_rlimit[i]) |
2749 | continue; | |
c93ff2e9 | 2750 | |
07719a21 LP |
2751 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2752 | if (!m->rlimit[i]) | |
2753 | return -ENOMEM; | |
c93ff2e9 FC |
2754 | } |
2755 | ||
2756 | return 0; | |
2757 | } | |
2758 | ||
4cfa2c99 | 2759 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2760 | Unit *u; |
2761 | ||
2762 | assert(m); | |
2763 | ||
67445f4e | 2764 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2765 | return; |
2766 | ||
731a676c LP |
2767 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2768 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2769 | log_close_journal(); |
731a676c | 2770 | return; |
f1dd0c3f LP |
2771 | } |
2772 | ||
731a676c LP |
2773 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2774 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2775 | log_close_journal(); |
731a676c LP |
2776 | return; |
2777 | } | |
f1dd0c3f | 2778 | |
731a676c LP |
2779 | /* Hmm, OK, so the socket is fully up and the service is up |
2780 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2781 | log_open(); |
2782 | } | |
2783 | ||
d450b6f2 | 2784 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2785 | assert(m); |
d450b6f2 | 2786 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2787 | |
67445f4e | 2788 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2789 | return; |
2790 | ||
d450b6f2 | 2791 | m->show_status = mode; |
27d340c7 | 2792 | |
d450b6f2 | 2793 | if (mode > 0) |
27d340c7 LP |
2794 | touch("/run/systemd/show-status"); |
2795 | else | |
2796 | unlink("/run/systemd/show-status"); | |
2797 | } | |
2798 | ||
6084e22e | 2799 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2800 | assert(m); |
2801 | ||
67445f4e | 2802 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2803 | return false; |
2804 | ||
31a7eb86 ZJS |
2805 | if (m->no_console_output) |
2806 | return false; | |
2807 | ||
08510627 LP |
2808 | if (!IN_SET(manager_state(m), MANAGER_STARTING, MANAGER_STOPPING)) |
2809 | return false; | |
2810 | ||
d450b6f2 | 2811 | if (m->show_status > 0) |
27d340c7 LP |
2812 | return true; |
2813 | ||
2814 | /* If Plymouth is running make sure we show the status, so | |
2815 | * that there's something nice to see when people press Esc */ | |
2816 | ||
2817 | return plymouth_running(); | |
2818 | } | |
68b29a9f | 2819 | |
e2680723 LP |
2820 | void manager_set_first_boot(Manager *m, bool b) { |
2821 | assert(m); | |
2822 | ||
2823 | if (m->running_as != SYSTEMD_SYSTEM) | |
2824 | return; | |
2825 | ||
2826 | m->first_boot = b; | |
2827 | ||
2828 | if (m->first_boot) | |
2829 | touch("/run/systemd/first-boot"); | |
2830 | else | |
2831 | unlink("/run/systemd/first-boot"); | |
2832 | } | |
2833 | ||
984a2be4 | 2834 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2835 | va_list ap; |
2836 | ||
2837 | if (!manager_get_show_status(m)) | |
2838 | return; | |
2839 | ||
03b717a3 MS |
2840 | /* XXX We should totally drop the check for ephemeral here |
2841 | * and thus effectively make 'Type=idle' pointless. */ | |
2842 | if (ephemeral && m->n_on_console > 0) | |
2843 | return; | |
2844 | ||
25cee550 | 2845 | va_start(ap, format); |
984a2be4 | 2846 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2847 | va_end(ap); |
2848 | } | |
2849 | ||
a57f7e2c LP |
2850 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2851 | _cleanup_free_ char *p = NULL; | |
2852 | Unit *found; | |
2853 | ||
2854 | assert(m); | |
2855 | assert(path); | |
2856 | assert(suffix); | |
2857 | assert(_found); | |
2858 | ||
2859 | p = unit_name_from_path(path, suffix); | |
2860 | if (!p) | |
2861 | return -ENOMEM; | |
2862 | ||
2863 | found = manager_get_unit(m, p); | |
2864 | if (!found) { | |
2865 | *_found = NULL; | |
2866 | return 0; | |
2867 | } | |
2868 | ||
2869 | *_found = found; | |
2870 | return 1; | |
2871 | } | |
2872 | ||
2873 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2874 | char p[strlen(path)+1]; | |
2875 | ||
2876 | assert(m); | |
2877 | assert(path); | |
2878 | ||
2879 | strcpy(p, path); | |
2880 | path_kill_slashes(p); | |
2881 | ||
2882 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2883 | } | |
e66cf1a3 LP |
2884 | |
2885 | const char *manager_get_runtime_prefix(Manager *m) { | |
f755e3b7 | 2886 | assert(m); |
e66cf1a3 LP |
2887 | |
2888 | return m->running_as == SYSTEMD_SYSTEM ? | |
2889 | "/run" : | |
2890 | getenv("XDG_RUNTIME_DIR"); | |
2891 | } | |
f755e3b7 LP |
2892 | |
2893 | ManagerState manager_state(Manager *m) { | |
2894 | Unit *u; | |
2895 | ||
2896 | assert(m); | |
2897 | ||
2898 | /* Did we ever finish booting? If not then we are still starting up */ | |
2899 | if (!dual_timestamp_is_set(&m->finish_timestamp)) | |
2900 | return MANAGER_STARTING; | |
2901 | ||
2902 | /* Is the special shutdown target queued? If so, we are in shutdown state */ | |
2903 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
2904 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
2905 | return MANAGER_STOPPING; | |
2906 | ||
2907 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
2908 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
2909 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2910 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2911 | return MANAGER_MAINTENANCE; | |
2912 | ||
2913 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
2914 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2915 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2916 | return MANAGER_MAINTENANCE; | |
2917 | ||
2918 | /* Are there any failed units? If so, we are in degraded mode */ | |
2919 | if (set_size(m->failed_units) > 0) | |
2920 | return MANAGER_DEGRADED; | |
2921 | ||
2922 | return MANAGER_RUNNING; | |
2923 | } | |
2924 | ||
2925 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
2926 | [MANAGER_STARTING] = "starting", | |
2927 | [MANAGER_RUNNING] = "running", | |
2928 | [MANAGER_DEGRADED] = "degraded", | |
2929 | [MANAGER_MAINTENANCE] = "maintenance", | |
2930 | [MANAGER_STOPPING] = "stopping", | |
2931 | }; | |
2932 | ||
2933 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |