]>
Commit | Line | Data |
---|---|---|
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 MS |
82 | /* Initial delay and the interval for printing status messages about running jobs */ |
83 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
84 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
86 | ||
8c47c732 | 87 | /* Where clients shall send notification messages to */ |
29252e9e | 88 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 89 | |
c3e31c7b ZJS |
90 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
91 | ||
718db961 LP |
92 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
93 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
94 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
95 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
96 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 97 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 98 | |
03b717a3 | 99 | static int manager_watch_jobs_in_progress(Manager *m) { |
718db961 | 100 | assert(m); |
03b717a3 | 101 | |
718db961 | 102 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
103 | return 0; |
104 | ||
718db961 | 105 | return sd_event_add_monotonic(m->event, JOBS_IN_PROGRESS_WAIT_SEC, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source); |
03b717a3 MS |
106 | } |
107 | ||
718db961 | 108 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 109 | |
03b717a3 MS |
110 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
111 | char *p = buffer; | |
112 | ||
113 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
114 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
115 | ||
116 | if (pos > 1) { | |
6282c859 MS |
117 | if (pos > 2) |
118 | p = mempset(p, ' ', pos-2); | |
5052495b | 119 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
120 | *p++ = '*'; |
121 | } | |
122 | ||
123 | if (pos > 0 && pos <= width) { | |
5052495b | 124 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
125 | *p++ = '*'; |
126 | } | |
127 | ||
5052495b | 128 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
129 | |
130 | if (pos < width) { | |
5052495b | 131 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 132 | *p++ = '*'; |
6282c859 MS |
133 | if (pos < width-1) |
134 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 135 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 136 | } |
03b717a3 MS |
137 | } |
138 | ||
139 | static void manager_print_jobs_in_progress(Manager *m) { | |
718db961 | 140 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
141 | Iterator i; |
142 | Job *j; | |
03b717a3 MS |
143 | unsigned counter = 0, print_nr; |
144 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
145 | unsigned cylon_pos; | |
146 | ||
718db961 LP |
147 | assert(m); |
148 | ||
03b717a3 MS |
149 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
150 | ||
151 | HASHMAP_FOREACH(j, m->jobs, i) | |
152 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
153 | break; | |
154 | ||
e970a72e MS |
155 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
156 | * so the above loop must have succeeded in finding j. */ | |
157 | assert(counter == print_nr + 1); | |
51d122af | 158 | assert(j); |
5a82a91a | 159 | |
03b717a3 MS |
160 | cylon_pos = m->jobs_in_progress_iteration % 14; |
161 | if (cylon_pos >= 8) | |
162 | cylon_pos = 14 - cylon_pos; | |
163 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
164 | ||
165 | if (m->n_running_jobs > 1) | |
166 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
167 | job_of_n = NULL; | |
168 | ||
169 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
170 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
03b717a3 MS |
171 | |
172 | m->jobs_in_progress_iteration++; | |
173 | } | |
174 | ||
31a7eb86 | 175 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
176 | int r; |
177 | ||
718db961 LP |
178 | assert(m); |
179 | ||
180 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
181 | return 0; |
182 | ||
183 | if (m->idle_pipe[2] < 0) | |
184 | return 0; | |
185 | ||
718db961 LP |
186 | r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source); |
187 | if (r < 0) { | |
188 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
189 | return r; | |
31a7eb86 ZJS |
190 | } |
191 | ||
31a7eb86 | 192 | return 0; |
31a7eb86 ZJS |
193 | } |
194 | ||
718db961 LP |
195 | static void manager_close_idle_pipe(Manager *m) { |
196 | assert(m); | |
31a7eb86 | 197 | |
718db961 LP |
198 | close_pipe(m->idle_pipe); |
199 | close_pipe(m->idle_pipe + 2); | |
31a7eb86 ZJS |
200 | } |
201 | ||
8742514c | 202 | static int manager_setup_time_change(Manager *m) { |
718db961 | 203 | int r; |
b92bea5d ZJS |
204 | |
205 | /* We only care for the cancellation event, hence we set the | |
206 | * timeout to the latest possible value. */ | |
207 | struct itimerspec its = { | |
208 | .it_value.tv_sec = TIME_T_MAX, | |
209 | }; | |
8742514c | 210 | |
718db961 LP |
211 | assert(m); |
212 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c LP |
213 | |
214 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
215 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
216 | ||
718db961 LP |
217 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
218 | if (m->time_change_fd < 0) { | |
8742514c LP |
219 | log_error("Failed to create timerfd: %m"); |
220 | return -errno; | |
221 | } | |
222 | ||
718db961 | 223 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 224 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
718db961 LP |
225 | close_nointr_nofail(m->time_change_fd); |
226 | m->time_change_fd = -1; | |
8742514c LP |
227 | return 0; |
228 | } | |
229 | ||
718db961 LP |
230 | r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source); |
231 | if (r < 0) { | |
232 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
233 | return r; | |
8742514c LP |
234 | } |
235 | ||
236 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
80876c20 | 241 | static int enable_special_signals(Manager *m) { |
718db961 | 242 | _cleanup_close_ int fd = -1; |
80876c20 LP |
243 | |
244 | assert(m); | |
245 | ||
a41b539e | 246 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
247 | * this will fail with EPERM (older) or EINVAL (newer), so |
248 | * ignore that. */ | |
249 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
250 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
251 | ||
a41b539e LP |
252 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
253 | if (fd < 0) { | |
254 | /* Support systems without virtual console */ | |
255 | if (fd != -ENOENT) | |
256 | log_warning("Failed to open /dev/tty0: %m"); | |
257 | } else { | |
80876c20 LP |
258 | /* Enable that we get SIGWINCH on kbrequest */ |
259 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 260 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
261 | } |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
ce578209 | 266 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
267 | struct sigaction sa = { |
268 | .sa_handler = SIG_DFL, | |
269 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
270 | }; | |
718db961 LP |
271 | sigset_t mask; |
272 | int r; | |
60918275 | 273 | |
ce578209 LP |
274 | assert(m); |
275 | ||
57c0c30e | 276 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
277 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
278 | ||
ce578209 | 279 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
280 | |
281 | sigset_add_many(&mask, | |
282 | SIGCHLD, /* Child died */ | |
283 | SIGTERM, /* Reexecute daemon */ | |
284 | SIGHUP, /* Reload configuration */ | |
285 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
286 | SIGUSR2, /* systemd: dump status */ | |
287 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
288 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
289 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
290 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 291 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
292 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
293 | SIGRTMIN+3, /* systemd: start halt.target */ | |
294 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
295 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
296 | SIGRTMIN+6, /* systemd: start kexec.target */ |
297 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
298 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
299 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
300 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
301 | SIGRTMIN+20, /* systemd: enable status messages */ |
302 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
303 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
304 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 305 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 306 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
307 | SIGRTMIN+27, /* systemd: set log target to console */ |
308 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
309 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 310 | -1); |
ce578209 LP |
311 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
312 | ||
718db961 LP |
313 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
314 | if (m->signal_fd < 0) | |
ce578209 LP |
315 | return -errno; |
316 | ||
718db961 LP |
317 | r = sd_event_add_io(m->event, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m, &m->signal_event_source); |
318 | if (r < 0) | |
319 | return r; | |
ce578209 | 320 | |
fa28bc2d LP |
321 | /* Process signals a bit earlier than the rest of things, but |
322 | * later that notify_fd processing, so that the notify | |
323 | * processing can still figure out to which process/service a | |
324 | * message belongs, before we reap the process. */ | |
29083707 LP |
325 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
326 | if (r < 0) | |
327 | return r; | |
328 | ||
67445f4e | 329 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 330 | return enable_special_signals(m); |
e1414003 | 331 | |
ce578209 LP |
332 | return 0; |
333 | } | |
334 | ||
e21fea24 | 335 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
336 | assert(m); |
337 | ||
e21fea24 KS |
338 | if (m->running_as == SYSTEMD_SYSTEM) { |
339 | /* The system manager always starts with a clean | |
340 | * environment for its children. It does not import | |
341 | * the kernel or the parents exported variables. | |
342 | * | |
343 | * The initial passed environ is untouched to keep | |
344 | * /proc/self/environ valid; it is used for tagging | |
345 | * the init process inside containers. */ | |
43638332 ZJS |
346 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
347 | NULL); | |
e21fea24 KS |
348 | |
349 | /* Import locale variables LC_*= from configuration */ | |
350 | locale_setup(&m->environment); | |
351 | } else | |
352 | /* The user manager passes its own environment | |
353 | * along to its children. */ | |
354 | m->environment = strv_copy(environ); | |
71ecc858 | 355 | |
e21fea24 KS |
356 | if (!m->environment) |
357 | return -ENOMEM; | |
8b55b8c4 | 358 | |
9d5a3757 LP |
359 | strv_sort(m->environment); |
360 | ||
e21fea24 | 361 | return 0; |
71ecc858 LP |
362 | } |
363 | ||
e3dd987c | 364 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 365 | Manager *m; |
e3dd987c | 366 | int r; |
8e274523 LP |
367 | |
368 | assert(_m); | |
a5dab5ce | 369 | assert(running_as >= 0); |
67445f4e | 370 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 371 | |
915b3753 LP |
372 | m = new0(Manager, 1); |
373 | if (!m) | |
8e274523 | 374 | return -ENOMEM; |
60918275 | 375 | |
4f8d551f ZC |
376 | #ifdef ENABLE_EFI |
377 | if (detect_container(NULL) <= 0) | |
c51d84dc | 378 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
379 | #endif |
380 | ||
a5dab5ce | 381 | m->running_as = running_as; |
a16e1123 | 382 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
80876c20 | 383 | |
718db961 | 384 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 385 | |
e3dd987c | 386 | 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 | 387 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 388 | |
e21fea24 KS |
389 | r = manager_default_environment(m); |
390 | if (r < 0) | |
1137a57c LP |
391 | goto fail; |
392 | ||
718db961 LP |
393 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
394 | if (r < 0) | |
60918275 LP |
395 | goto fail; |
396 | ||
718db961 LP |
397 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
398 | if (r < 0) | |
60918275 LP |
399 | goto fail; |
400 | ||
718db961 LP |
401 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
402 | if (r < 0) | |
9152c765 LP |
403 | goto fail; |
404 | ||
718db961 LP |
405 | r = hashmap_ensure_allocated(&m->watch_pids, trivial_hash_func, trivial_compare_func); |
406 | if (r < 0) | |
8e274523 LP |
407 | goto fail; |
408 | ||
718db961 LP |
409 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
410 | if (r < 0) | |
05e343b7 LP |
411 | goto fail; |
412 | ||
718db961 LP |
413 | r = sd_event_default(&m->event); |
414 | if (r < 0) | |
8742514c LP |
415 | goto fail; |
416 | ||
752b5905 LP |
417 | r = sd_event_add_defer(m->event, manager_dispatch_run_queue, m, &m->run_queue_event_source); |
418 | if (r < 0) | |
419 | goto fail; | |
420 | ||
421 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
422 | if (r < 0) | |
423 | goto fail; | |
424 | ||
425 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
426 | if (r < 0) | |
427 | goto fail; | |
428 | ||
8742514c LP |
429 | r = manager_setup_signals(m); |
430 | if (r < 0) | |
9152c765 LP |
431 | goto fail; |
432 | ||
8742514c LP |
433 | r = manager_setup_cgroup(m); |
434 | if (r < 0) | |
8e274523 LP |
435 | goto fail; |
436 | ||
8742514c LP |
437 | r = manager_setup_time_change(m); |
438 | if (r < 0) | |
8c47c732 LP |
439 | goto fail; |
440 | ||
9670d583 LP |
441 | m->udev = udev_new(); |
442 | if (!m->udev) { | |
443 | r = -ENOMEM; | |
444 | goto fail; | |
445 | } | |
446 | ||
d86f9d52 LP |
447 | /* Note that we set up neither kdbus, nor the notify fd |
448 | * here. We do that after deserialization, since they might | |
449 | * have gotten serialized across the reexec. */ | |
450 | ||
72bc8d00 LP |
451 | m->taint_usr = dir_is_empty("/usr") > 0; |
452 | ||
8e274523 LP |
453 | *_m = m; |
454 | return 0; | |
60918275 LP |
455 | |
456 | fail: | |
457 | manager_free(m); | |
8e274523 | 458 | return r; |
60918275 LP |
459 | } |
460 | ||
d86f9d52 LP |
461 | static int manager_setup_notify(Manager *m) { |
462 | union { | |
463 | struct sockaddr sa; | |
464 | struct sockaddr_un un; | |
465 | } sa = { | |
466 | .sa.sa_family = AF_UNIX, | |
467 | }; | |
468 | int one = 1, r; | |
469 | ||
470 | if (m->notify_fd < 0) { | |
471 | _cleanup_close_ int fd = -1; | |
472 | ||
473 | /* First free all secondary fields */ | |
474 | free(m->notify_socket); | |
475 | m->notify_socket = NULL; | |
476 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
477 | ||
478 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
479 | if (fd < 0) { | |
480 | log_error("Failed to allocate notification socket: %m"); | |
481 | return -errno; | |
482 | } | |
483 | ||
484 | if (getpid() != 1 || detect_container(NULL) > 0) | |
9bf3b535 | 485 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%" PRIx64, random_u64()); |
d86f9d52 LP |
486 | else |
487 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
488 | sa.un.sun_path[0] = 0; | |
489 | ||
490 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
491 | if (r < 0) { | |
492 | log_error("bind() failed: %m"); | |
493 | return -errno; | |
494 | } | |
495 | ||
496 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
497 | if (r < 0) { | |
498 | log_error("SO_PASSCRED failed: %m"); | |
499 | return -errno; | |
500 | } | |
501 | ||
502 | sa.un.sun_path[0] = '@'; | |
503 | m->notify_socket = strdup(sa.un.sun_path); | |
504 | if (!m->notify_socket) | |
505 | return log_oom(); | |
506 | ||
507 | m->notify_fd = fd; | |
508 | fd = -1; | |
509 | ||
510 | log_debug("Using notification socket %s", m->notify_socket); | |
511 | } | |
512 | ||
513 | if (!m->notify_event_source) { | |
514 | r = sd_event_add_io(m->event, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m, &m->notify_event_source); | |
515 | if (r < 0) { | |
516 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
517 | return -errno; | |
518 | } | |
519 | ||
520 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
521 | * still identify to which service an exit message belongs */ | |
522 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
523 | if (r < 0) { | |
524 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
525 | return r; | |
526 | } | |
527 | } | |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static int manager_setup_kdbus(Manager *m) { | |
533 | _cleanup_free_ char *p = NULL; | |
534 | ||
535 | assert(m); | |
536 | ||
537 | #ifdef ENABLE_KDBUS | |
538 | if (m->kdbus_fd >= 0) | |
539 | return 0; | |
540 | ||
541 | /* If there's already a bus address set, don't set up kdbus */ | |
542 | if (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) | |
543 | return 0; | |
544 | ||
f2769777 | 545 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
546 | if (m->kdbus_fd < 0) { |
547 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
548 | return m->kdbus_fd; | |
549 | } | |
550 | ||
551 | log_debug("Successfully set up kdbus on %s", p); | |
552 | ||
553 | /* Create the namespace directory here, so that the contents | |
554 | * of that directory is not visible to non-root users. This is | |
555 | * necessary to ensure that users cannot get access to busses | |
556 | * of virtualized users when no UID namespacing is used. */ | |
557 | mkdir_p_label("/dev/kdbus/ns", 0700); | |
558 | #endif | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
563 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
564 | bool try_bus_connect; | |
565 | ||
566 | assert(m); | |
567 | ||
568 | try_bus_connect = | |
569 | m->kdbus_fd >= 0 || | |
570 | reexecuting || | |
571 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
572 | ||
573 | /* Try to connect to the busses, if possible. */ | |
574 | return bus_init(m, try_bus_connect); | |
575 | } | |
576 | ||
23a177ef | 577 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 578 | Unit *u; |
23a177ef LP |
579 | unsigned n = 0; |
580 | ||
581 | assert(m); | |
582 | ||
595ed347 MS |
583 | while ((u = m->cleanup_queue)) { |
584 | assert(u->in_cleanup_queue); | |
23a177ef | 585 | |
595ed347 | 586 | unit_free(u); |
23a177ef LP |
587 | n++; |
588 | } | |
589 | ||
590 | return n; | |
591 | } | |
592 | ||
eced69b3 | 593 | enum { |
35b8ca3a | 594 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
595 | GC_OFFSET_UNSURE, /* No clue */ |
596 | GC_OFFSET_GOOD, /* We still need this unit */ | |
597 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
598 | _GC_OFFSET_MAX | |
599 | }; | |
600 | ||
601 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
602 | Iterator i; |
603 | Unit *other; | |
eced69b3 | 604 | bool is_bad; |
701cc384 LP |
605 | |
606 | assert(u); | |
607 | ||
ac155bb8 MS |
608 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
609 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
610 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
611 | return; |
612 | ||
ac155bb8 | 613 | if (u->in_cleanup_queue) |
701cc384 LP |
614 | goto bad; |
615 | ||
616 | if (unit_check_gc(u)) | |
617 | goto good; | |
618 | ||
ac155bb8 | 619 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
620 | |
621 | is_bad = true; | |
622 | ||
ac155bb8 | 623 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
624 | unit_gc_sweep(other, gc_marker); |
625 | ||
ac155bb8 | 626 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 627 | goto good; |
eced69b3 | 628 | |
ac155bb8 | 629 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 630 | is_bad = false; |
701cc384 LP |
631 | } |
632 | ||
eced69b3 LP |
633 | if (is_bad) |
634 | goto bad; | |
635 | ||
636 | /* We were unable to find anything out about this entry, so | |
637 | * let's investigate it later */ | |
ac155bb8 | 638 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
639 | unit_add_to_gc_queue(u); |
640 | return; | |
641 | ||
701cc384 | 642 | bad: |
eced69b3 LP |
643 | /* We definitely know that this one is not useful anymore, so |
644 | * let's mark it for deletion */ | |
ac155bb8 | 645 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 646 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
647 | return; |
648 | ||
649 | good: | |
ac155bb8 | 650 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
651 | } |
652 | ||
653 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 654 | Unit *u; |
701cc384 | 655 | unsigned n = 0; |
eced69b3 | 656 | unsigned gc_marker; |
701cc384 LP |
657 | |
658 | assert(m); | |
659 | ||
cf1265e1 | 660 | /* log_debug("Running GC..."); */ |
701cc384 | 661 | |
eced69b3 LP |
662 | m->gc_marker += _GC_OFFSET_MAX; |
663 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 664 | m->gc_marker = 1; |
701cc384 | 665 | |
eced69b3 LP |
666 | gc_marker = m->gc_marker; |
667 | ||
595ed347 MS |
668 | while ((u = m->gc_queue)) { |
669 | assert(u->in_gc_queue); | |
701cc384 | 670 | |
595ed347 | 671 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 672 | |
71fda00f | 673 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 674 | u->in_gc_queue = false; |
701cc384 LP |
675 | |
676 | n++; | |
677 | ||
595ed347 MS |
678 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
679 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 680 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
681 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
682 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
683 | } |
684 | } | |
685 | ||
686 | m->n_in_gc_queue = 0; | |
701cc384 LP |
687 | |
688 | return n; | |
689 | } | |
690 | ||
a16e1123 | 691 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 692 | Unit *u; |
60918275 LP |
693 | |
694 | assert(m); | |
695 | ||
87f0e418 LP |
696 | while ((u = hashmap_first(m->units))) |
697 | unit_free(u); | |
964e0949 LP |
698 | |
699 | manager_dispatch_cleanup_queue(m); | |
700 | ||
701 | assert(!m->load_queue); | |
702 | assert(!m->run_queue); | |
703 | assert(!m->dbus_unit_queue); | |
704 | assert(!m->dbus_job_queue); | |
705 | assert(!m->cleanup_queue); | |
706 | assert(!m->gc_queue); | |
707 | ||
964e0949 LP |
708 | assert(hashmap_isempty(m->jobs)); |
709 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
710 | |
711 | m->n_on_console = 0; | |
712 | m->n_running_jobs = 0; | |
a16e1123 LP |
713 | } |
714 | ||
715 | void manager_free(Manager *m) { | |
716 | UnitType c; | |
c93ff2e9 | 717 | int i; |
87f0e418 | 718 | |
a16e1123 LP |
719 | assert(m); |
720 | ||
721 | manager_clear_jobs_and_units(m); | |
23a177ef | 722 | |
7824bbeb LP |
723 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
724 | if (unit_vtable[c]->shutdown) | |
725 | unit_vtable[c]->shutdown(m); | |
726 | ||
a16e1123 LP |
727 | /* If we reexecute ourselves, we keep the root cgroup |
728 | * around */ | |
c6c18be3 | 729 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 730 | |
5a1e9937 LP |
731 | manager_undo_generators(m); |
732 | ||
5e8d1c9a | 733 | bus_done(m); |
ea430986 | 734 | |
87f0e418 | 735 | hashmap_free(m->units); |
60918275 | 736 | hashmap_free(m->jobs); |
9152c765 | 737 | hashmap_free(m->watch_pids); |
05e343b7 | 738 | hashmap_free(m->watch_bus); |
9152c765 | 739 | |
718db961 LP |
740 | sd_event_source_unref(m->signal_event_source); |
741 | sd_event_source_unref(m->notify_event_source); | |
742 | sd_event_source_unref(m->time_change_event_source); | |
743 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
744 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 745 | sd_event_source_unref(m->run_queue_event_source); |
718db961 LP |
746 | |
747 | if (m->signal_fd >= 0) | |
748 | close_nointr_nofail(m->signal_fd); | |
749 | if (m->notify_fd >= 0) | |
750 | close_nointr_nofail(m->notify_fd); | |
751 | if (m->time_change_fd >= 0) | |
752 | close_nointr_nofail(m->time_change_fd); | |
e3dd987c LP |
753 | if (m->kdbus_fd >= 0) |
754 | close_nointr_nofail(m->kdbus_fd); | |
718db961 LP |
755 | |
756 | manager_close_idle_pipe(m); | |
757 | ||
9670d583 | 758 | udev_unref(m->udev); |
718db961 | 759 | sd_event_unref(m->event); |
60918275 | 760 | |
c952c6ec LP |
761 | free(m->notify_socket); |
762 | ||
84e3543e | 763 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 764 | strv_free(m->environment); |
036643a2 | 765 | |
4ad49000 | 766 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 767 | set_free_free(m->unit_path_cache); |
33be102a | 768 | |
664f88a7 LP |
769 | free(m->switch_root); |
770 | free(m->switch_root_init); | |
771 | ||
c93ff2e9 FC |
772 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
773 | free(m->rlimit[i]); | |
774 | ||
a57f7e2c LP |
775 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
776 | hashmap_free(m->units_requiring_mounts_for); | |
777 | ||
60918275 LP |
778 | free(m); |
779 | } | |
780 | ||
a16e1123 LP |
781 | int manager_enumerate(Manager *m) { |
782 | int r = 0, q; | |
f50e0a01 | 783 | UnitType c; |
f50e0a01 LP |
784 | |
785 | assert(m); | |
786 | ||
a16e1123 LP |
787 | /* Let's ask every type to load all units from disk/kernel |
788 | * that it might know */ | |
f50e0a01 | 789 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
790 | if (unit_vtable[c]->enumerate) { |
791 | q = unit_vtable[c]->enumerate(m); | |
792 | if (q < 0) | |
a16e1123 | 793 | r = q; |
a57f7e2c | 794 | } |
f50e0a01 LP |
795 | |
796 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
797 | return r; |
798 | } | |
799 | ||
9588bc32 | 800 | static int manager_coldplug(Manager *m) { |
a16e1123 LP |
801 | int r = 0, q; |
802 | Iterator i; | |
803 | Unit *u; | |
804 | char *k; | |
805 | ||
806 | assert(m); | |
f50e0a01 LP |
807 | |
808 | /* Then, let's set up their initial state. */ | |
809 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
810 | ||
811 | /* ignore aliases */ | |
ac155bb8 | 812 | if (u->id != k) |
f50e0a01 LP |
813 | continue; |
814 | ||
cca098b0 LP |
815 | if ((q = unit_coldplug(u)) < 0) |
816 | r = q; | |
f50e0a01 LP |
817 | } |
818 | ||
a16e1123 LP |
819 | return r; |
820 | } | |
821 | ||
fe51822e LP |
822 | static void manager_build_unit_path_cache(Manager *m) { |
823 | char **i; | |
7fd1b19b | 824 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
825 | int r; |
826 | ||
827 | assert(m); | |
828 | ||
829 | set_free_free(m->unit_path_cache); | |
830 | ||
874310b7 ZJS |
831 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
832 | if (!m->unit_path_cache) { | |
fe51822e LP |
833 | log_error("Failed to allocate unit path cache."); |
834 | return; | |
835 | } | |
836 | ||
837 | /* This simply builds a list of files we know exist, so that | |
838 | * we don't always have to go to disk */ | |
839 | ||
840 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
841 | struct dirent *de; | |
842 | ||
bd0af849 ZJS |
843 | d = opendir(*i); |
844 | if (!d) { | |
874310b7 ZJS |
845 | if (errno != ENOENT) |
846 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
847 | continue; |
848 | } | |
849 | ||
850 | while ((de = readdir(d))) { | |
851 | char *p; | |
852 | ||
853 | if (ignore_file(de->d_name)) | |
854 | continue; | |
855 | ||
b7def684 | 856 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 857 | if (!p) { |
fe51822e LP |
858 | r = -ENOMEM; |
859 | goto fail; | |
860 | } | |
861 | ||
ef42202a ZJS |
862 | r = set_consume(m->unit_path_cache, p); |
863 | if (r < 0) | |
fe51822e | 864 | goto fail; |
fe51822e LP |
865 | } |
866 | ||
867 | closedir(d); | |
868 | d = NULL; | |
869 | } | |
870 | ||
871 | return; | |
872 | ||
873 | fail: | |
874 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
875 | ||
876 | set_free_free(m->unit_path_cache); | |
877 | m->unit_path_cache = NULL; | |
fe51822e LP |
878 | } |
879 | ||
9588bc32 LP |
880 | |
881 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
882 | Unit *u; | |
883 | Iterator i; | |
884 | int r; | |
885 | ||
886 | assert(m); | |
887 | ||
888 | HASHMAP_FOREACH(u, m->units, i) { | |
889 | ||
890 | if (fdset_size(fds) <= 0) | |
891 | break; | |
892 | ||
893 | if (UNIT_VTABLE(u)->distribute_fds) { | |
894 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
895 | if (r < 0) | |
896 | return r; | |
897 | } | |
898 | } | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
a16e1123 LP |
903 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
904 | int r, q; | |
905 | ||
906 | assert(m); | |
907 | ||
518d10e9 | 908 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 909 | manager_run_generators(m); |
518d10e9 | 910 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 911 | |
07719a21 LP |
912 | r = lookup_paths_init( |
913 | &m->lookup_paths, m->running_as, true, | |
914 | m->generator_unit_path, | |
915 | m->generator_unit_path_early, | |
916 | m->generator_unit_path_late); | |
917 | if (r < 0) | |
918 | return r; | |
919 | ||
fe51822e LP |
920 | manager_build_unit_path_cache(m); |
921 | ||
9f611ad8 LP |
922 | /* If we will deserialize make sure that during enumeration |
923 | * this is already known, so we increase the counter here | |
924 | * already */ | |
925 | if (serialization) | |
a7556052 | 926 | m->n_reloading ++; |
9f611ad8 | 927 | |
a16e1123 | 928 | /* First, enumerate what we can from all config files */ |
718db961 | 929 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 930 | r = manager_enumerate(m); |
718db961 | 931 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
932 | |
933 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
934 | if (serialization) { |
935 | q = manager_deserialize(m, serialization, fds); | |
936 | if (q < 0) | |
a16e1123 | 937 | r = q; |
07719a21 | 938 | } |
a16e1123 | 939 | |
01e10de3 LP |
940 | /* Any fds left? Find some unit which wants them. This is |
941 | * useful to allow container managers to pass some file | |
942 | * descriptors to us pre-initialized. This enables | |
943 | * socket-based activation of entire containers. */ | |
944 | if (fdset_size(fds) > 0) { | |
945 | q = manager_distribute_fds(m, fds); | |
946 | if (q < 0) | |
947 | r = q; | |
948 | } | |
949 | ||
d86f9d52 LP |
950 | /* We might have deserialized the notify fd, but if we didn't |
951 | * then let's create the bus now */ | |
952 | manager_setup_notify(m); | |
953 | ||
e3dd987c LP |
954 | /* We might have deserialized the kdbus control fd, but if we |
955 | * didn't, then let's create the bus now. */ | |
956 | manager_setup_kdbus(m); | |
957 | manager_connect_bus(m, !!serialization); | |
958 | ||
a16e1123 | 959 | /* Third, fire things up! */ |
07719a21 LP |
960 | q = manager_coldplug(m); |
961 | if (q < 0) | |
a16e1123 LP |
962 | r = q; |
963 | ||
9f611ad8 | 964 | if (serialization) { |
a7556052 LP |
965 | assert(m->n_reloading > 0); |
966 | m->n_reloading --; | |
71445ae7 LP |
967 | |
968 | /* Let's wait for the UnitNew/JobNew messages being | |
969 | * sent, before we notify that the reload is | |
970 | * finished */ | |
971 | m->send_reloading_done = true; | |
9f611ad8 LP |
972 | } |
973 | ||
a16e1123 | 974 | return r; |
f50e0a01 LP |
975 | } |
976 | ||
718db961 | 977 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 978 | int r; |
7527cb52 | 979 | Transaction *tr; |
e5b5ae50 LP |
980 | |
981 | assert(m); | |
982 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 983 | assert(unit); |
e5b5ae50 | 984 | assert(mode < _JOB_MODE_MAX); |
60918275 | 985 | |
398ef8ba | 986 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 987 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 988 | return -EINVAL; |
398ef8ba | 989 | } |
c497c7a9 | 990 | |
ac155bb8 | 991 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 992 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
993 | return -EPERM; |
994 | } | |
995 | ||
66870f90 ZJS |
996 | log_debug_unit(unit->id, |
997 | "Trying to enqueue job %s/%s/%s", unit->id, | |
998 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 999 | |
e0209d83 MS |
1000 | job_type_collapse(&type, unit); |
1001 | ||
23ade460 | 1002 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1003 | if (!tr) |
1004 | return -ENOMEM; | |
11dd41ce | 1005 | |
7527cb52 MS |
1006 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1007 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1008 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1009 | if (r < 0) |
1010 | goto tr_abort; | |
c497c7a9 | 1011 | |
7527cb52 MS |
1012 | if (mode == JOB_ISOLATE) { |
1013 | r = transaction_add_isolate_jobs(tr, m); | |
1014 | if (r < 0) | |
1015 | goto tr_abort; | |
1016 | } | |
1017 | ||
1018 | r = transaction_activate(tr, m, mode, e); | |
1019 | if (r < 0) | |
1020 | goto tr_abort; | |
e5b5ae50 | 1021 | |
66870f90 ZJS |
1022 | log_debug_unit(unit->id, |
1023 | "Enqueued job %s/%s as %u", unit->id, | |
1024 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1025 | |
e5b5ae50 | 1026 | if (_ret) |
b94fbd30 | 1027 | *_ret = tr->anchor_job; |
60918275 | 1028 | |
7527cb52 | 1029 | transaction_free(tr); |
e5b5ae50 | 1030 | return 0; |
7527cb52 MS |
1031 | |
1032 | tr_abort: | |
1033 | transaction_abort(tr); | |
1034 | transaction_free(tr); | |
1035 | return r; | |
e5b5ae50 | 1036 | } |
60918275 | 1037 | |
718db961 | 1038 | 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 |
1039 | Unit *unit; |
1040 | int r; | |
1041 | ||
1042 | assert(m); | |
1043 | assert(type < _JOB_TYPE_MAX); | |
1044 | assert(name); | |
1045 | assert(mode < _JOB_MODE_MAX); | |
1046 | ||
c3090674 LP |
1047 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1048 | if (r < 0) | |
28247076 LP |
1049 | return r; |
1050 | ||
398ef8ba | 1051 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1052 | } |
1053 | ||
60918275 LP |
1054 | Job *manager_get_job(Manager *m, uint32_t id) { |
1055 | assert(m); | |
1056 | ||
1057 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1058 | } | |
1059 | ||
87f0e418 | 1060 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1061 | assert(m); |
1062 | assert(name); | |
1063 | ||
87f0e418 | 1064 | return hashmap_get(m->units, name); |
60918275 LP |
1065 | } |
1066 | ||
c1e1601e | 1067 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1068 | Unit *u; |
c1e1601e | 1069 | unsigned n = 0; |
60918275 LP |
1070 | |
1071 | assert(m); | |
1072 | ||
223dabab LP |
1073 | /* Make sure we are not run recursively */ |
1074 | if (m->dispatching_load_queue) | |
c1e1601e | 1075 | return 0; |
223dabab LP |
1076 | |
1077 | m->dispatching_load_queue = true; | |
1078 | ||
87f0e418 | 1079 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1080 | * tries to load its data until the queue is empty */ |
1081 | ||
595ed347 MS |
1082 | while ((u = m->load_queue)) { |
1083 | assert(u->in_load_queue); | |
034c6ed7 | 1084 | |
595ed347 | 1085 | unit_load(u); |
c1e1601e | 1086 | n++; |
60918275 LP |
1087 | } |
1088 | ||
223dabab | 1089 | m->dispatching_load_queue = false; |
c1e1601e | 1090 | return n; |
60918275 LP |
1091 | } |
1092 | ||
c2756a68 LP |
1093 | int manager_load_unit_prepare( |
1094 | Manager *m, | |
1095 | const char *name, | |
1096 | const char *path, | |
718db961 | 1097 | sd_bus_error *e, |
c2756a68 LP |
1098 | Unit **_ret) { |
1099 | ||
87f0e418 | 1100 | Unit *ret; |
7d17cfbc | 1101 | UnitType t; |
60918275 LP |
1102 | int r; |
1103 | ||
1104 | assert(m); | |
9e2f7c11 | 1105 | assert(name || path); |
60918275 | 1106 | |
db06e3b6 LP |
1107 | /* This will prepare the unit for loading, but not actually |
1108 | * load anything from disk. */ | |
0301abf4 | 1109 | |
718db961 LP |
1110 | if (path && !is_path(path)) |
1111 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1112 | |
1113 | if (!name) | |
2b6bf07d | 1114 | name = basename(path); |
9e2f7c11 | 1115 | |
7d17cfbc MS |
1116 | t = unit_name_to_type(name); |
1117 | ||
f78e6385 | 1118 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1119 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1120 | |
7d17cfbc MS |
1121 | ret = manager_get_unit(m, name); |
1122 | if (ret) { | |
034c6ed7 | 1123 | *_ret = ret; |
413d6313 | 1124 | return 1; |
034c6ed7 | 1125 | } |
60918275 | 1126 | |
7d17cfbc MS |
1127 | ret = unit_new(m, unit_vtable[t]->object_size); |
1128 | if (!ret) | |
60918275 LP |
1129 | return -ENOMEM; |
1130 | ||
7d17cfbc | 1131 | if (path) { |
ac155bb8 MS |
1132 | ret->fragment_path = strdup(path); |
1133 | if (!ret->fragment_path) { | |
0301abf4 LP |
1134 | unit_free(ret); |
1135 | return -ENOMEM; | |
1136 | } | |
7d17cfbc | 1137 | } |
0301abf4 | 1138 | |
1058cbf2 ZJS |
1139 | r = unit_add_name(ret, name); |
1140 | if (r < 0) { | |
87f0e418 | 1141 | unit_free(ret); |
1ffba6fe | 1142 | return r; |
60918275 LP |
1143 | } |
1144 | ||
87f0e418 | 1145 | unit_add_to_load_queue(ret); |
c1e1601e | 1146 | unit_add_to_dbus_queue(ret); |
949061f0 | 1147 | unit_add_to_gc_queue(ret); |
c1e1601e | 1148 | |
db06e3b6 LP |
1149 | if (_ret) |
1150 | *_ret = ret; | |
1151 | ||
1152 | return 0; | |
1153 | } | |
1154 | ||
c2756a68 LP |
1155 | int manager_load_unit( |
1156 | Manager *m, | |
1157 | const char *name, | |
1158 | const char *path, | |
718db961 | 1159 | sd_bus_error *e, |
c2756a68 LP |
1160 | Unit **_ret) { |
1161 | ||
db06e3b6 LP |
1162 | int r; |
1163 | ||
1164 | assert(m); | |
1165 | ||
1166 | /* This will load the service information files, but not actually | |
1167 | * start any services or anything. */ | |
1168 | ||
c3090674 LP |
1169 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1170 | if (r != 0) | |
db06e3b6 LP |
1171 | return r; |
1172 | ||
f50e0a01 | 1173 | manager_dispatch_load_queue(m); |
60918275 | 1174 | |
9e2f7c11 | 1175 | if (_ret) |
413d6313 | 1176 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1177 | |
60918275 LP |
1178 | return 0; |
1179 | } | |
a66d02c3 | 1180 | |
cea8e32e | 1181 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1182 | Iterator i; |
a66d02c3 LP |
1183 | Job *j; |
1184 | ||
1185 | assert(s); | |
1186 | assert(f); | |
1187 | ||
034c6ed7 | 1188 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1189 | job_dump(j, f, prefix); |
a66d02c3 LP |
1190 | } |
1191 | ||
87f0e418 | 1192 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1193 | Iterator i; |
87f0e418 | 1194 | Unit *u; |
11dd41ce | 1195 | const char *t; |
a66d02c3 LP |
1196 | |
1197 | assert(s); | |
1198 | assert(f); | |
1199 | ||
87f0e418 | 1200 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1201 | if (u->id == t) |
87f0e418 | 1202 | unit_dump(u, f, prefix); |
a66d02c3 | 1203 | } |
7fad411c LP |
1204 | |
1205 | void manager_clear_jobs(Manager *m) { | |
1206 | Job *j; | |
1207 | ||
1208 | assert(m); | |
1209 | ||
7fad411c | 1210 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1211 | /* No need to recurse. We're cancelling all jobs. */ |
1212 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1213 | } |
83c60c9f | 1214 | |
752b5905 LP |
1215 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1216 | Manager *m = userdata; | |
83c60c9f | 1217 | Job *j; |
034c6ed7 | 1218 | |
752b5905 LP |
1219 | assert(source); |
1220 | assert(m); | |
9152c765 | 1221 | |
034c6ed7 | 1222 | while ((j = m->run_queue)) { |
ac1135be | 1223 | assert(j->installed); |
034c6ed7 LP |
1224 | assert(j->in_run_queue); |
1225 | ||
1226 | job_run_and_invalidate(j); | |
9152c765 | 1227 | } |
034c6ed7 | 1228 | |
a0b64226 | 1229 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1230 | manager_watch_jobs_in_progress(m); |
1231 | ||
31a7eb86 ZJS |
1232 | if (m->n_on_console > 0) |
1233 | manager_watch_idle_pipe(m); | |
1234 | ||
752b5905 | 1235 | return 1; |
c1e1601e LP |
1236 | } |
1237 | ||
9588bc32 | 1238 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1239 | Job *j; |
595ed347 | 1240 | Unit *u; |
c1e1601e LP |
1241 | unsigned n = 0; |
1242 | ||
1243 | assert(m); | |
1244 | ||
1245 | if (m->dispatching_dbus_queue) | |
1246 | return 0; | |
1247 | ||
1248 | m->dispatching_dbus_queue = true; | |
1249 | ||
595ed347 MS |
1250 | while ((u = m->dbus_unit_queue)) { |
1251 | assert(u->in_dbus_queue); | |
c1e1601e | 1252 | |
595ed347 | 1253 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1254 | n++; |
1255 | } | |
1256 | ||
1257 | while ((j = m->dbus_job_queue)) { | |
1258 | assert(j->in_dbus_queue); | |
1259 | ||
1260 | bus_job_send_change_signal(j); | |
1261 | n++; | |
1262 | } | |
1263 | ||
1264 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1265 | |
1266 | if (m->send_reloading_done) { | |
1267 | m->send_reloading_done = false; | |
1268 | ||
718db961 | 1269 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1270 | } |
1271 | ||
718db961 LP |
1272 | if (m->queued_message) |
1273 | bus_send_queued_message(m); | |
1274 | ||
c1e1601e | 1275 | return n; |
9152c765 LP |
1276 | } |
1277 | ||
718db961 LP |
1278 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1279 | Manager *m = userdata; | |
8c47c732 LP |
1280 | ssize_t n; |
1281 | ||
1282 | assert(m); | |
718db961 LP |
1283 | assert(m->notify_fd == fd); |
1284 | ||
1285 | if (revents != EPOLLIN) { | |
1286 | log_warning("Got unexpected poll event for notify fd."); | |
1287 | return 0; | |
1288 | } | |
8c47c732 LP |
1289 | |
1290 | for (;;) { | |
1291 | char buf[4096]; | |
b92bea5d ZJS |
1292 | struct iovec iovec = { |
1293 | .iov_base = buf, | |
1294 | .iov_len = sizeof(buf)-1, | |
1295 | }; | |
1296 | ||
8c47c732 LP |
1297 | union { |
1298 | struct cmsghdr cmsghdr; | |
1299 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1300 | } control = {}; |
1301 | ||
1302 | struct msghdr msghdr = { | |
1303 | .msg_iov = &iovec, | |
1304 | .msg_iovlen = 1, | |
1305 | .msg_control = &control, | |
1306 | .msg_controllen = sizeof(control), | |
1307 | }; | |
1308 | struct ucred *ucred; | |
8c47c732 | 1309 | Unit *u; |
7fd1b19b | 1310 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1311 | |
718db961 | 1312 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1313 | if (n <= 0) { |
b92bea5d | 1314 | if (n == 0) |
8c47c732 LP |
1315 | return -EIO; |
1316 | ||
f6144808 | 1317 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1318 | break; |
1319 | ||
1320 | return -errno; | |
1321 | } | |
1322 | ||
1323 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1324 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1325 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1326 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1327 | log_warning("Received notify message without credentials. Ignoring."); | |
1328 | continue; | |
1329 | } | |
1330 | ||
1331 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1332 | ||
bd0af849 ZJS |
1333 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1334 | if (!u) { | |
4ad49000 | 1335 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1336 | if (!u) { |
ccd06097 | 1337 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); |
8c47c732 LP |
1338 | continue; |
1339 | } | |
bd0af849 | 1340 | } |
8c47c732 | 1341 | |
8c40acf7 LP |
1342 | assert((size_t) n < sizeof(buf)); |
1343 | buf[n] = 0; | |
bd0af849 ZJS |
1344 | tags = strv_split(buf, "\n\r"); |
1345 | if (!tags) | |
1346 | return log_oom(); | |
8c47c732 | 1347 | |
66870f90 | 1348 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1349 | |
1350 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1351 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1352 | } |
1353 | ||
1354 | return 0; | |
1355 | } | |
1356 | ||
034c6ed7 | 1357 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1358 | assert(m); |
1359 | ||
1360 | for (;;) { | |
b92bea5d | 1361 | siginfo_t si = {}; |
87f0e418 | 1362 | Unit *u; |
9152c765 | 1363 | |
4112df16 LP |
1364 | /* First we call waitd() for a PID and do not reap the |
1365 | * zombie. That way we can still access /proc/$PID for | |
1366 | * it while it is a zombie. */ | |
1367 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1368 | |
1369 | if (errno == ECHILD) | |
1370 | break; | |
1371 | ||
4112df16 LP |
1372 | if (errno == EINTR) |
1373 | continue; | |
1374 | ||
9152c765 | 1375 | return -errno; |
acbb0225 | 1376 | } |
9152c765 | 1377 | |
4112df16 | 1378 | if (si.si_pid <= 0) |
9152c765 LP |
1379 | break; |
1380 | ||
15d5d9d9 | 1381 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1382 | _cleanup_free_ char *name = NULL; |
4112df16 | 1383 | |
87d2c1ff | 1384 | get_process_comm(si.si_pid, &name); |
ccd06097 | 1385 | log_debug("Got SIGCHLD for process "PID_FMT" (%s)", si.si_pid, strna(name)); |
4112df16 LP |
1386 | } |
1387 | ||
8c47c732 | 1388 | /* And now figure out the unit this belongs to */ |
bd0af849 ZJS |
1389 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1390 | if (!u) | |
4ad49000 | 1391 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1392 | |
4112df16 LP |
1393 | /* And now, we actually reap the zombie. */ |
1394 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1395 | if (errno == EINTR) | |
1396 | continue; | |
1397 | ||
1398 | return -errno; | |
1399 | } | |
1400 | ||
034c6ed7 LP |
1401 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1402 | continue; | |
1403 | ||
bb00e604 LP |
1404 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1405 | (long unsigned) si.si_pid, | |
4112df16 LP |
1406 | sigchld_code_to_string(si.si_code), |
1407 | si.si_status, | |
d06dacd0 LP |
1408 | strna(si.si_code == CLD_EXITED |
1409 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1410 | : signal_to_string(si.si_status))); | |
acbb0225 | 1411 | |
8c47c732 | 1412 | if (!u) |
9152c765 LP |
1413 | continue; |
1414 | ||
66870f90 ZJS |
1415 | log_debug_unit(u->id, |
1416 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1417 | |
c6c18be3 | 1418 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1419 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1420 | } |
1421 | ||
1422 | return 0; | |
1423 | } | |
1424 | ||
7d793605 | 1425 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1426 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1427 | int r; |
398ef8ba | 1428 | |
66870f90 | 1429 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1430 | |
bd0af849 ZJS |
1431 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1432 | if (r < 0) | |
718db961 | 1433 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1434 | |
1435 | return r; | |
28247076 LP |
1436 | } |
1437 | ||
718db961 LP |
1438 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1439 | Manager *m = userdata; | |
9152c765 LP |
1440 | ssize_t n; |
1441 | struct signalfd_siginfo sfsi; | |
1442 | bool sigchld = false; | |
1443 | ||
1444 | assert(m); | |
718db961 LP |
1445 | assert(m->signal_fd == fd); |
1446 | ||
1447 | if (revents != EPOLLIN) { | |
1448 | log_warning("Got unexpected events from signal file descriptor."); | |
1449 | return 0; | |
1450 | } | |
9152c765 LP |
1451 | |
1452 | for (;;) { | |
718db961 | 1453 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1454 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1455 | |
1456 | if (n >= 0) | |
1457 | return -EIO; | |
1458 | ||
63090775 | 1459 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1460 | break; |
9152c765 LP |
1461 | |
1462 | return -errno; | |
1463 | } | |
1464 | ||
67370238 | 1465 | if (sfsi.ssi_pid > 0) { |
a9244623 | 1466 | _cleanup_free_ char *p = NULL; |
67370238 | 1467 | |
87d2c1ff | 1468 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1469 | |
a9244623 ZJS |
1470 | log_full(sfsi.ssi_signo == SIGCHLD || |
1471 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1472 | ? LOG_DEBUG : LOG_INFO, | |
ccd06097 | 1473 | "Received SIG%s from PID "PID_FMT" (%s).", |
a9244623 | 1474 | signal_to_string(sfsi.ssi_signo), |
ccd06097 | 1475 | sfsi.ssi_pid, strna(p)); |
67370238 | 1476 | } else |
a9244623 ZJS |
1477 | log_full(sfsi.ssi_signo == SIGCHLD || |
1478 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1479 | ? LOG_DEBUG : LOG_INFO, | |
1480 | "Received SIG%s.", | |
1481 | signal_to_string(sfsi.ssi_signo)); | |
1e001f52 | 1482 | |
b9cd2ec1 LP |
1483 | switch (sfsi.ssi_signo) { |
1484 | ||
4112df16 | 1485 | case SIGCHLD: |
9152c765 | 1486 | sigchld = true; |
b9cd2ec1 LP |
1487 | break; |
1488 | ||
6632c602 | 1489 | case SIGTERM: |
67445f4e | 1490 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1491 | /* This is for compatibility with the |
1492 | * original sysvinit */ | |
e11dc4a2 | 1493 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1494 | break; |
1495 | } | |
84e9af1e | 1496 | |
a1b256b0 | 1497 | /* Fall through */ |
e11dc4a2 LP |
1498 | |
1499 | case SIGINT: | |
67445f4e | 1500 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1501 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1502 | break; |
1503 | } | |
1504 | ||
a1b256b0 | 1505 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1506 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1507 | m->exit_code = MANAGER_EXIT; |
1508 | return 0; | |
1509 | } | |
1510 | ||
1511 | break; | |
84e9af1e | 1512 | |
28247076 | 1513 | case SIGWINCH: |
67445f4e | 1514 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1515 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1516 | |
28247076 LP |
1517 | /* This is a nop on non-init */ |
1518 | break; | |
84e9af1e | 1519 | |
28247076 | 1520 | case SIGPWR: |
67445f4e | 1521 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1522 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1523 | |
28247076 | 1524 | /* This is a nop on non-init */ |
84e9af1e | 1525 | break; |
6632c602 | 1526 | |
1005d14f | 1527 | case SIGUSR1: { |
57ee42ce LP |
1528 | Unit *u; |
1529 | ||
1530 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1531 | ||
1532 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1533 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1534 | bus_init(m, true); |
57ee42ce LP |
1535 | } |
1536 | ||
1537 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1538 | log_info("Loading D-Bus service..."); | |
7d793605 | 1539 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1540 | } |
1541 | ||
1542 | break; | |
1543 | } | |
1544 | ||
2149e37c | 1545 | case SIGUSR2: { |
718db961 LP |
1546 | _cleanup_free_ char *dump = NULL; |
1547 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1548 | size_t size; |
1549 | ||
718db961 LP |
1550 | f = open_memstream(&dump, &size); |
1551 | if (!f) { | |
2149e37c LP |
1552 | log_warning("Failed to allocate memory stream."); |
1553 | break; | |
1554 | } | |
1555 | ||
1556 | manager_dump_units(m, f, "\t"); | |
1557 | manager_dump_jobs(m, f, "\t"); | |
1558 | ||
1559 | if (ferror(f)) { | |
2149e37c LP |
1560 | log_warning("Failed to write status stream"); |
1561 | break; | |
1562 | } | |
1563 | ||
2149e37c | 1564 | log_dump(LOG_INFO, dump); |
1005d14f | 1565 | break; |
2149e37c | 1566 | } |
1005d14f | 1567 | |
a16e1123 LP |
1568 | case SIGHUP: |
1569 | m->exit_code = MANAGER_RELOAD; | |
1570 | break; | |
1571 | ||
7d793605 | 1572 | default: { |
253ee27a | 1573 | |
0003d1ab LP |
1574 | /* Starting SIGRTMIN+0 */ |
1575 | static const char * const target_table[] = { | |
7d793605 LP |
1576 | [0] = SPECIAL_DEFAULT_TARGET, |
1577 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1578 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1579 | [3] = SPECIAL_HALT_TARGET, |
1580 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1581 | [5] = SPECIAL_REBOOT_TARGET, |
1582 | [6] = SPECIAL_KEXEC_TARGET | |
1583 | }; | |
1584 | ||
1585 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1586 | static const ManagerExitCode code_table[] = { | |
1587 | [0] = MANAGER_HALT, | |
1588 | [1] = MANAGER_POWEROFF, | |
1589 | [2] = MANAGER_REBOOT, | |
1590 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1591 | }; |
1592 | ||
1593 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1594 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1595 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1596 | manager_start_target(m, target_table[idx], | |
1597 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1598 | break; |
1599 | } | |
1600 | ||
0003d1ab LP |
1601 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1602 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1603 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1604 | break; | |
1605 | } | |
1606 | ||
0658666b LP |
1607 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1608 | ||
1609 | case 20: | |
1610 | log_debug("Enabling showing of status."); | |
27d340c7 | 1611 | manager_set_show_status(m, true); |
0658666b LP |
1612 | break; |
1613 | ||
1614 | case 21: | |
1615 | log_debug("Disabling showing of status."); | |
27d340c7 | 1616 | manager_set_show_status(m, false); |
0658666b LP |
1617 | break; |
1618 | ||
253ee27a LP |
1619 | case 22: |
1620 | log_set_max_level(LOG_DEBUG); | |
1621 | log_notice("Setting log level to debug."); | |
1622 | break; | |
1623 | ||
1624 | case 23: | |
1625 | log_set_max_level(LOG_INFO); | |
1626 | log_notice("Setting log level to info."); | |
1627 | break; | |
1628 | ||
600b704e LP |
1629 | case 24: |
1630 | if (m->running_as == SYSTEMD_USER) { | |
1631 | m->exit_code = MANAGER_EXIT; | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1635 | /* This is a nop on init */ | |
1636 | break; | |
1637 | ||
4cfa2c99 LP |
1638 | case 26: |
1639 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1640 | log_notice("Setting log target to journal-or-kmsg."); | |
1641 | break; | |
1642 | ||
253ee27a LP |
1643 | case 27: |
1644 | log_set_target(LOG_TARGET_CONSOLE); | |
1645 | log_notice("Setting log target to console."); | |
1646 | break; | |
1647 | ||
1648 | case 28: | |
1649 | log_set_target(LOG_TARGET_KMSG); | |
1650 | log_notice("Setting log target to kmsg."); | |
1651 | break; | |
1652 | ||
1653 | case 29: | |
1654 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1655 | log_notice("Setting log target to syslog-or-kmsg."); | |
1656 | break; | |
1657 | ||
0658666b | 1658 | default: |
4e240ab0 | 1659 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1660 | } |
b9cd2ec1 | 1661 | } |
7d793605 | 1662 | } |
9152c765 LP |
1663 | } |
1664 | ||
1665 | if (sigchld) | |
7b77ed8c | 1666 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1667 | |
1668 | return 0; | |
1669 | } | |
1670 | ||
718db961 LP |
1671 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1672 | Manager *m = userdata; | |
1673 | Iterator i; | |
1674 | Unit *u; | |
034c6ed7 LP |
1675 | |
1676 | assert(m); | |
718db961 | 1677 | assert(m->time_change_fd == fd); |
034c6ed7 | 1678 | |
718db961 LP |
1679 | log_struct(LOG_INFO, |
1680 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1681 | "MESSAGE=Time has been changed", | |
1682 | NULL); | |
034c6ed7 | 1683 | |
718db961 LP |
1684 | /* Restart the watch */ |
1685 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1686 | |
718db961 LP |
1687 | close_nointr_nofail(m->time_change_fd); |
1688 | m->time_change_fd = -1; | |
ef734fd6 | 1689 | |
718db961 | 1690 | manager_setup_time_change(m); |
4e434314 | 1691 | |
718db961 LP |
1692 | HASHMAP_FOREACH(u, m->units, i) |
1693 | if (UNIT_VTABLE(u)->time_change) | |
1694 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1695 | |
718db961 LP |
1696 | return 0; |
1697 | } | |
ea430986 | 1698 | |
718db961 LP |
1699 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1700 | Manager *m = userdata; | |
8742514c | 1701 | |
718db961 LP |
1702 | assert(m); |
1703 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1704 | |
718db961 | 1705 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1706 | |
718db961 LP |
1707 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1708 | manager_close_idle_pipe(m); | |
03b717a3 | 1709 | |
718db961 LP |
1710 | return 0; |
1711 | } | |
31a7eb86 | 1712 | |
718db961 LP |
1713 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1714 | Manager *m = userdata; | |
31a7eb86 | 1715 | |
718db961 | 1716 | assert(m); |
9152c765 | 1717 | |
718db961 | 1718 | manager_print_jobs_in_progress(m); |
9152c765 LP |
1719 | return 0; |
1720 | } | |
1721 | ||
1722 | int manager_loop(Manager *m) { | |
1723 | int r; | |
9152c765 | 1724 | |
fac9f8df | 1725 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1726 | |
9152c765 | 1727 | assert(m); |
a16e1123 | 1728 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1729 | |
fe51822e LP |
1730 | /* Release the path cache */ |
1731 | set_free_free(m->unit_path_cache); | |
1732 | m->unit_path_cache = NULL; | |
1733 | ||
b0c918b9 LP |
1734 | manager_check_finished(m); |
1735 | ||
a4312405 | 1736 | /* There might still be some zombies hanging around from |
f3669545 | 1737 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1738 | r = manager_dispatch_sigchld(m); |
1739 | if (r < 0) | |
a4312405 LP |
1740 | return r; |
1741 | ||
a16e1123 | 1742 | while (m->exit_code == MANAGER_RUNNING) { |
718db961 | 1743 | usec_t wait_usec; |
9152c765 | 1744 | |
67445f4e | 1745 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1746 | watchdog_ping(); |
1747 | ||
ea430986 LP |
1748 | if (!ratelimit_test(&rl)) { |
1749 | /* Yay, something is going seriously wrong, pause a little */ | |
1750 | log_warning("Looping too fast. Throttling execution a little."); | |
1751 | sleep(1); | |
e96d6be7 | 1752 | continue; |
ea430986 LP |
1753 | } |
1754 | ||
37a8e683 | 1755 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1756 | continue; |
1757 | ||
cf1265e1 | 1758 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1759 | continue; |
1760 | ||
cf1265e1 | 1761 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1762 | continue; |
034c6ed7 | 1763 | |
cf1265e1 | 1764 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1765 | continue; |
1766 | ||
c1e1601e | 1767 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1768 | continue; |
ea430986 | 1769 | |
c757a65b | 1770 | /* Sleep for half the watchdog time */ |
67445f4e | 1771 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1772 | wait_usec = m->runtime_watchdog / 2; |
1773 | if (wait_usec <= 0) | |
1774 | wait_usec = 1; | |
c757a65b | 1775 | } else |
718db961 | 1776 | wait_usec = (usec_t) -1; |
9152c765 | 1777 | |
718db961 LP |
1778 | r = sd_event_run(m->event, wait_usec); |
1779 | if (r < 0) { | |
1780 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1781 | return r; |
718db961 | 1782 | } |
a16e1123 | 1783 | } |
957ca890 | 1784 | |
a16e1123 | 1785 | return m->exit_code; |
83c60c9f | 1786 | } |
ea430986 | 1787 | |
718db961 | 1788 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1789 | _cleanup_free_ char *n = NULL; |
ea430986 | 1790 | Unit *u; |
80fbf05e | 1791 | int r; |
ea430986 LP |
1792 | |
1793 | assert(m); | |
1794 | assert(s); | |
1795 | assert(_u); | |
1796 | ||
ede3a796 LP |
1797 | r = unit_name_from_dbus_path(s, &n); |
1798 | if (r < 0) | |
1799 | return r; | |
ea430986 | 1800 | |
80fbf05e | 1801 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1802 | if (r < 0) |
1803 | return r; | |
ea430986 LP |
1804 | |
1805 | *_u = u; | |
1806 | ||
1807 | return 0; | |
1808 | } | |
86fbf370 LP |
1809 | |
1810 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1811 | const char *p; |
86fbf370 | 1812 | unsigned id; |
718db961 | 1813 | Job *j; |
86fbf370 LP |
1814 | int r; |
1815 | ||
1816 | assert(m); | |
1817 | assert(s); | |
1818 | assert(_j); | |
1819 | ||
718db961 LP |
1820 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1821 | if (!p) | |
86fbf370 LP |
1822 | return -EINVAL; |
1823 | ||
718db961 | 1824 | r = safe_atou(p, &id); |
8742514c | 1825 | if (r < 0) |
86fbf370 LP |
1826 | return r; |
1827 | ||
8742514c LP |
1828 | j = manager_get_job(m, id); |
1829 | if (!j) | |
86fbf370 LP |
1830 | return -ENOENT; |
1831 | ||
1832 | *_j = j; | |
1833 | ||
1834 | return 0; | |
1835 | } | |
dfcd764e | 1836 | |
4927fcae | 1837 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1838 | |
4927fcae LP |
1839 | #ifdef HAVE_AUDIT |
1840 | char *p; | |
c1165f82 | 1841 | int audit_fd; |
e537352b | 1842 | |
c1165f82 LP |
1843 | audit_fd = get_audit_fd(); |
1844 | if (audit_fd < 0) | |
e537352b LP |
1845 | return; |
1846 | ||
bbd3a7ba LP |
1847 | /* Don't generate audit events if the service was already |
1848 | * started and we're just deserializing */ | |
a7556052 | 1849 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1850 | return; |
1851 | ||
67445f4e | 1852 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1853 | return; |
1854 | ||
ac155bb8 | 1855 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1856 | return; |
1857 | ||
bd0af849 ZJS |
1858 | p = unit_name_to_prefix_and_instance(u->id); |
1859 | if (!p) { | |
66870f90 ZJS |
1860 | log_error_unit(u->id, |
1861 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1862 | return; |
1863 | } | |
1864 | ||
c1165f82 | 1865 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1866 | if (errno == EPERM) { |
1867 | /* We aren't allowed to send audit messages? | |
44785992 | 1868 | * Then let's not retry again. */ |
c1165f82 | 1869 | close_audit_fd(); |
44785992 LP |
1870 | } else |
1871 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1872 | } |
e537352b | 1873 | |
4927fcae LP |
1874 | free(p); |
1875 | #endif | |
e537352b | 1876 | |
e537352b LP |
1877 | } |
1878 | ||
e983b760 LP |
1879 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1880 | int fd = -1; | |
1881 | union sockaddr_union sa; | |
1882 | int n = 0; | |
1883 | char *message = NULL; | |
e983b760 LP |
1884 | |
1885 | /* Don't generate plymouth events if the service was already | |
1886 | * started and we're just deserializing */ | |
a7556052 | 1887 | if (m->n_reloading > 0) |
e983b760 LP |
1888 | return; |
1889 | ||
67445f4e | 1890 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1891 | return; |
1892 | ||
3772995a LP |
1893 | if (detect_container(NULL) > 0) |
1894 | return; | |
1895 | ||
ac155bb8 MS |
1896 | if (u->type != UNIT_SERVICE && |
1897 | u->type != UNIT_MOUNT && | |
1898 | u->type != UNIT_SWAP) | |
e983b760 LP |
1899 | return; |
1900 | ||
1901 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1902 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1903 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1904 | if (fd < 0) { | |
e983b760 LP |
1905 | log_error("socket() failed: %m"); |
1906 | return; | |
1907 | } | |
1908 | ||
1909 | zero(sa); | |
1910 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1911 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1912 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1913 | |
1914 | if (errno != EPIPE && | |
1915 | errno != EAGAIN && | |
1916 | errno != ENOENT && | |
1917 | errno != ECONNREFUSED && | |
1918 | errno != ECONNRESET && | |
1919 | errno != ECONNABORTED) | |
1920 | log_error("connect() failed: %m"); | |
1921 | ||
1922 | goto finish; | |
1923 | } | |
1924 | ||
ac155bb8 | 1925 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1926 | log_oom(); |
e983b760 LP |
1927 | goto finish; |
1928 | } | |
1929 | ||
1930 | errno = 0; | |
bd40a2d8 | 1931 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1932 | |
1933 | if (errno != EPIPE && | |
1934 | errno != EAGAIN && | |
1935 | errno != ENOENT && | |
1936 | errno != ECONNREFUSED && | |
1937 | errno != ECONNRESET && | |
1938 | errno != ECONNABORTED) | |
1939 | log_error("Failed to write Plymouth message: %m"); | |
1940 | ||
1941 | goto finish; | |
1942 | } | |
1943 | ||
1944 | finish: | |
1945 | if (fd >= 0) | |
1946 | close_nointr_nofail(fd); | |
1947 | ||
1948 | free(message); | |
1949 | } | |
1950 | ||
05e343b7 LP |
1951 | void manager_dispatch_bus_name_owner_changed( |
1952 | Manager *m, | |
1953 | const char *name, | |
1954 | const char* old_owner, | |
1955 | const char *new_owner) { | |
1956 | ||
1957 | Unit *u; | |
1958 | ||
1959 | assert(m); | |
1960 | assert(name); | |
1961 | ||
718db961 LP |
1962 | u = hashmap_get(m->watch_bus, name); |
1963 | if (!u) | |
05e343b7 LP |
1964 | return; |
1965 | ||
1966 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1967 | } | |
1968 | ||
d8d5ab98 | 1969 | int manager_open_serialization(Manager *m, FILE **_f) { |
d86f9d52 | 1970 | _cleanup_free_ char *path = NULL; |
df28bc08 | 1971 | int fd = -1; |
a16e1123 LP |
1972 | FILE *f; |
1973 | ||
1974 | assert(_f); | |
1975 | ||
67445f4e | 1976 | if (m->running_as == SYSTEMD_SYSTEM) |
ccd06097 | 1977 | asprintf(&path, "/run/systemd/dump-"PID_FMT"-XXXXXX", getpid()); |
b925e726 | 1978 | else |
ccd06097 | 1979 | asprintf(&path, "/tmp/systemd-dump-"PID_FMT"-XXXXXX", getpid()); |
d8d5ab98 | 1980 | |
b925e726 LP |
1981 | if (!path) |
1982 | return -ENOMEM; | |
a16e1123 | 1983 | |
5c0d398d LP |
1984 | RUN_WITH_UMASK(0077) { |
1985 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1986 | } | |
a16e1123 | 1987 | |
d86f9d52 | 1988 | if (fd < 0) |
a16e1123 | 1989 | return -errno; |
a16e1123 LP |
1990 | |
1991 | unlink(path); | |
a16e1123 | 1992 | log_debug("Serializing state to %s", path); |
a16e1123 | 1993 | |
01e10de3 | 1994 | f = fdopen(fd, "w+"); |
d86f9d52 LP |
1995 | if (!f) { |
1996 | close_nointr_nofail(fd); | |
a16e1123 | 1997 | return -errno; |
d86f9d52 | 1998 | } |
a16e1123 LP |
1999 | |
2000 | *_f = f; | |
2001 | ||
2002 | return 0; | |
2003 | } | |
2004 | ||
b3680f49 | 2005 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2006 | Iterator i; |
2007 | Unit *u; | |
2008 | const char *t; | |
4a9fd066 | 2009 | char **e; |
a16e1123 LP |
2010 | int r; |
2011 | ||
2012 | assert(m); | |
2013 | assert(f); | |
2014 | assert(fds); | |
2015 | ||
a7556052 | 2016 | m->n_reloading ++; |
38c52d46 | 2017 | |
01d67b43 LP |
2018 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2019 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2020 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2021 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2022 | |
915b3753 | 2023 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2024 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2025 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2026 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2027 | |
26a1efdf | 2028 | if (!in_initrd()) { |
915b3753 | 2029 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2030 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2031 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2032 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2033 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2034 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2035 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2036 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2037 | } |
47a483a1 | 2038 | |
b3680f49 HH |
2039 | if (!switching_root) { |
2040 | STRV_FOREACH(e, m->environment) { | |
2041 | _cleanup_free_ char *ce; | |
4a9fd066 | 2042 | |
b3680f49 | 2043 | ce = cescape(*e); |
e3dd987c LP |
2044 | if (!ce) |
2045 | return -ENOMEM; | |
2046 | ||
2047 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2048 | } |
4a9fd066 OS |
2049 | } |
2050 | ||
d86f9d52 LP |
2051 | if (m->notify_fd >= 0) { |
2052 | int copy; | |
2053 | ||
2054 | copy = fdset_put_dup(fds, m->notify_fd); | |
2055 | if (copy < 0) | |
2056 | return copy; | |
2057 | ||
2058 | fprintf(f, "notify-fd=%i\n", copy); | |
2059 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2060 | } | |
2061 | ||
e3dd987c LP |
2062 | if (m->kdbus_fd >= 0) { |
2063 | int copy; | |
2064 | ||
2065 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2066 | if (copy < 0) | |
2067 | return copy; | |
2068 | ||
2069 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2070 | } | |
2071 | ||
6fa48533 LP |
2072 | bus_serialize(m, f); |
2073 | ||
f2382a94 LP |
2074 | fputc('\n', f); |
2075 | ||
a16e1123 | 2076 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2077 | if (u->id != t) |
a16e1123 LP |
2078 | continue; |
2079 | ||
2080 | if (!unit_can_serialize(u)) | |
2081 | continue; | |
2082 | ||
2083 | /* Start marker */ | |
ac155bb8 | 2084 | fputs(u->id, f); |
a16e1123 LP |
2085 | fputc('\n', f); |
2086 | ||
6fa48533 LP |
2087 | r = unit_serialize(u, f, fds, !switching_root); |
2088 | if (r < 0) { | |
a7556052 | 2089 | m->n_reloading --; |
a16e1123 | 2090 | return r; |
38c52d46 | 2091 | } |
a16e1123 LP |
2092 | } |
2093 | ||
a7556052 LP |
2094 | assert(m->n_reloading > 0); |
2095 | m->n_reloading --; | |
38c52d46 | 2096 | |
a16e1123 LP |
2097 | if (ferror(f)) |
2098 | return -EIO; | |
2099 | ||
b23de6af LP |
2100 | r = bus_fdset_add_all(m, fds); |
2101 | if (r < 0) | |
2102 | return r; | |
2103 | ||
a16e1123 LP |
2104 | return 0; |
2105 | } | |
2106 | ||
2107 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2108 | int r = 0; | |
2109 | ||
2110 | assert(m); | |
2111 | assert(f); | |
2112 | ||
2113 | log_debug("Deserializing state..."); | |
2114 | ||
a7556052 | 2115 | m->n_reloading ++; |
82c64bf5 | 2116 | |
10f8e83c | 2117 | for (;;) { |
20c03b7b | 2118 | char line[LINE_MAX], *l; |
10f8e83c LP |
2119 | |
2120 | if (!fgets(line, sizeof(line), f)) { | |
2121 | if (feof(f)) | |
2122 | r = 0; | |
2123 | else | |
2124 | r = -errno; | |
2125 | ||
2126 | goto finish; | |
2127 | } | |
2128 | ||
2129 | char_array_0(line); | |
2130 | l = strstrip(line); | |
2131 | ||
2132 | if (l[0] == 0) | |
2133 | break; | |
2134 | ||
01d67b43 LP |
2135 | if (startswith(l, "current-job-id=")) { |
2136 | uint32_t id; | |
2137 | ||
2138 | if (safe_atou32(l+15, &id) < 0) | |
2139 | log_debug("Failed to parse current job id value %s", l+15); | |
2140 | else | |
2141 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2142 | |
33c5fae9 LP |
2143 | } else if (startswith(l, "n-installed-jobs=")) { |
2144 | uint32_t n; | |
2145 | ||
2146 | if (safe_atou32(l+17, &n) < 0) | |
2147 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2148 | else | |
2149 | m->n_installed_jobs += n; | |
718db961 | 2150 | |
33c5fae9 LP |
2151 | } else if (startswith(l, "n-failed-jobs=")) { |
2152 | uint32_t n; | |
2153 | ||
2154 | if (safe_atou32(l+14, &n) < 0) | |
2155 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2156 | else | |
2157 | m->n_failed_jobs += n; | |
718db961 | 2158 | |
01d67b43 LP |
2159 | } else if (startswith(l, "taint-usr=")) { |
2160 | int b; | |
2161 | ||
e3dd987c LP |
2162 | b = parse_boolean(l+10); |
2163 | if (b < 0) | |
01d67b43 LP |
2164 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2165 | else | |
2166 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2167 | |
915b3753 LP |
2168 | } else if (startswith(l, "firmware-timestamp=")) |
2169 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2170 | else if (startswith(l, "loader-timestamp=")) | |
2171 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2172 | else if (startswith(l, "kernel-timestamp=")) | |
2173 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2174 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2175 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2176 | else if (startswith(l, "userspace-timestamp=")) |
2177 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2178 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2179 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2180 | else if (startswith(l, "security-start-timestamp=")) |
2181 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2182 | else if (startswith(l, "security-finish-timestamp=")) | |
2183 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2184 | else if (startswith(l, "generators-start-timestamp=")) | |
2185 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2186 | else if (startswith(l, "generators-finish-timestamp=")) | |
2187 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2188 | else if (startswith(l, "units-load-start-timestamp=")) | |
2189 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2190 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2191 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2192 | else if (startswith(l, "env=")) { |
2193 | _cleanup_free_ char *uce = NULL; | |
2194 | char **e; | |
2195 | ||
2196 | uce = cunescape(l+4); | |
2197 | if (!uce) { | |
2198 | r = -ENOMEM; | |
2199 | goto finish; | |
2200 | } | |
2201 | ||
2202 | e = strv_env_set(m->environment, uce); | |
2203 | if (!e) { | |
2204 | r = -ENOMEM; | |
2205 | goto finish; | |
2206 | } | |
2207 | ||
2208 | strv_free(m->environment); | |
2209 | m->environment = e; | |
e3dd987c | 2210 | |
d86f9d52 LP |
2211 | } else if (startswith(l, "notify-fd=")) { |
2212 | int fd; | |
2213 | ||
2214 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2215 | log_debug("Failed to parse notify fd: %s", l + 10); | |
2216 | else { | |
be04cbca LP |
2217 | if (m->notify_fd >= 0) { |
2218 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
d86f9d52 | 2219 | close_nointr_nofail(m->notify_fd); |
be04cbca | 2220 | } |
d86f9d52 LP |
2221 | |
2222 | m->notify_fd = fdset_remove(fds, fd); | |
2223 | } | |
2224 | ||
2225 | } else if (startswith(l, "notify-socket=")) { | |
2226 | char *n; | |
2227 | ||
2228 | n = strdup(l+14); | |
2229 | if (!n) { | |
2230 | r = -ENOMEM; | |
2231 | goto finish; | |
2232 | } | |
2233 | ||
2234 | free(m->notify_socket); | |
2235 | m->notify_socket = n; | |
2236 | ||
e3dd987c LP |
2237 | } else if (startswith(l, "kdbus-fd=")) { |
2238 | int fd; | |
2239 | ||
8bf9fcf4 | 2240 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2241 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2242 | else { | |
2243 | if (m->kdbus_fd >= 0) | |
2244 | close_nointr_nofail(m->kdbus_fd); | |
2245 | ||
2246 | m->kdbus_fd = fdset_remove(fds, fd); | |
2247 | } | |
2248 | ||
6fa48533 | 2249 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2250 | log_debug("Unknown serialization item '%s'", l); |
2251 | } | |
2252 | ||
a16e1123 LP |
2253 | for (;;) { |
2254 | Unit *u; | |
2255 | char name[UNIT_NAME_MAX+2]; | |
2256 | ||
2257 | /* Start marker */ | |
2258 | if (!fgets(name, sizeof(name), f)) { | |
2259 | if (feof(f)) | |
10f8e83c LP |
2260 | r = 0; |
2261 | else | |
2262 | r = -errno; | |
a16e1123 | 2263 | |
82c64bf5 | 2264 | goto finish; |
a16e1123 LP |
2265 | } |
2266 | ||
2267 | char_array_0(name); | |
2268 | ||
bd0af849 ZJS |
2269 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2270 | if (r < 0) | |
82c64bf5 | 2271 | goto finish; |
a16e1123 | 2272 | |
01e10de3 LP |
2273 | r = unit_deserialize(u, f, fds); |
2274 | if (r < 0) | |
82c64bf5 | 2275 | goto finish; |
a16e1123 LP |
2276 | } |
2277 | ||
10f8e83c | 2278 | finish: |
145b1f79 | 2279 | if (ferror(f)) |
82c64bf5 | 2280 | r = -EIO; |
a16e1123 | 2281 | |
a7556052 LP |
2282 | assert(m->n_reloading > 0); |
2283 | m->n_reloading --; | |
82c64bf5 LP |
2284 | |
2285 | return r; | |
a16e1123 LP |
2286 | } |
2287 | ||
2288 | int manager_reload(Manager *m) { | |
2289 | int r, q; | |
51d122af ZJS |
2290 | _cleanup_fclose_ FILE *f = NULL; |
2291 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2292 | |
2293 | assert(m); | |
2294 | ||
07719a21 LP |
2295 | r = manager_open_serialization(m, &f); |
2296 | if (r < 0) | |
a16e1123 LP |
2297 | return r; |
2298 | ||
a7556052 | 2299 | m->n_reloading ++; |
718db961 | 2300 | bus_manager_send_reloading(m, true); |
38c52d46 | 2301 | |
07719a21 LP |
2302 | fds = fdset_new(); |
2303 | if (!fds) { | |
a7556052 | 2304 | m->n_reloading --; |
51d122af | 2305 | return -ENOMEM; |
a16e1123 LP |
2306 | } |
2307 | ||
b3680f49 | 2308 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2309 | if (r < 0) { |
a7556052 | 2310 | m->n_reloading --; |
51d122af | 2311 | return r; |
38c52d46 | 2312 | } |
a16e1123 LP |
2313 | |
2314 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2315 | m->n_reloading --; |
51d122af | 2316 | return -errno; |
a16e1123 LP |
2317 | } |
2318 | ||
2319 | /* From here on there is no way back. */ | |
2320 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2321 | manager_undo_generators(m); |
84e3543e | 2322 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2323 | |
07719a21 | 2324 | /* Find new unit paths */ |
5a1e9937 LP |
2325 | manager_run_generators(m); |
2326 | ||
07719a21 LP |
2327 | q = lookup_paths_init( |
2328 | &m->lookup_paths, m->running_as, true, | |
2329 | m->generator_unit_path, | |
2330 | m->generator_unit_path_early, | |
2331 | m->generator_unit_path_late); | |
2332 | if (q < 0) | |
2333 | r = q; | |
2334 | ||
5a1e9937 LP |
2335 | manager_build_unit_path_cache(m); |
2336 | ||
a16e1123 | 2337 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2338 | q = manager_enumerate(m); |
2339 | if (q < 0) | |
a16e1123 LP |
2340 | r = q; |
2341 | ||
2342 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2343 | q = manager_deserialize(m, f, fds); |
2344 | if (q < 0) | |
a16e1123 LP |
2345 | r = q; |
2346 | ||
2347 | fclose(f); | |
2348 | f = NULL; | |
2349 | ||
2350 | /* Third, fire things up! */ | |
07719a21 LP |
2351 | q = manager_coldplug(m); |
2352 | if (q < 0) | |
a16e1123 LP |
2353 | r = q; |
2354 | ||
a7556052 LP |
2355 | assert(m->n_reloading > 0); |
2356 | m->n_reloading--; | |
9f611ad8 | 2357 | |
71445ae7 LP |
2358 | m->send_reloading_done = true; |
2359 | ||
a16e1123 LP |
2360 | return r; |
2361 | } | |
2362 | ||
6084e22e | 2363 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2364 | Unit *u; |
2365 | ||
2366 | assert(m); | |
2367 | ||
2368 | /* Is the initial job still around? */ | |
bacbccb7 | 2369 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2370 | return true; |
2371 | ||
2372 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2373 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2374 | if (u) | |
ac155bb8 | 2375 | return !!u->job; |
9e58ff9c LP |
2376 | |
2377 | return false; | |
2378 | } | |
2379 | ||
c17ec25e MS |
2380 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2381 | assert(m); | |
2382 | ||
2383 | return m->n_reloading != 0; | |
2384 | } | |
2385 | ||
fdf20a31 | 2386 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2387 | Unit *u; |
2388 | Iterator i; | |
2389 | ||
2390 | assert(m); | |
2391 | ||
2392 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2393 | unit_reset_failed(u); |
5632e374 LP |
2394 | } |
2395 | ||
31afa0a4 | 2396 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2397 | Unit *u; |
2398 | ||
2399 | assert(m); | |
2400 | assert(name); | |
2401 | ||
2402 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2403 | u = manager_get_unit(m, name); |
2404 | if (!u) | |
8f6df3fa LP |
2405 | return true; |
2406 | ||
31afa0a4 | 2407 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2408 | } |
2409 | ||
b0c918b9 | 2410 | void manager_check_finished(Manager *m) { |
7ceba241 | 2411 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2412 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2413 | |
2414 | assert(m); | |
2415 | ||
a0b64226 | 2416 | if (m->n_running_jobs == 0) |
718db961 | 2417 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2418 | |
828db5d8 KS |
2419 | if (hashmap_size(m->jobs) > 0) { |
2420 | if (m->jobs_in_progress_event_source) | |
2421 | sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC); | |
b0c918b9 | 2422 | return; |
5b176ee0 | 2423 | } |
b0c918b9 | 2424 | |
f2b68789 | 2425 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2426 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2427 | manager_close_idle_pipe(m); | |
f2b68789 | 2428 | |
af6da548 LP |
2429 | /* Turn off confirm spawn now */ |
2430 | m->confirm_spawn = false; | |
2431 | ||
f2b68789 | 2432 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2433 | return; |
2434 | ||
2435 | dual_timestamp_get(&m->finish_timestamp); | |
2436 | ||
67445f4e | 2437 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2438 | |
915b3753 LP |
2439 | /* Note that m->kernel_usec.monotonic is always at 0, |
2440 | * and m->firmware_usec.monotonic and | |
2441 | * m->loader_usec.monotonic should be considered | |
2442 | * negative values. */ | |
2443 | ||
7ceba241 LP |
2444 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2445 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2446 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2447 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2448 | |
e9ddabc2 | 2449 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2450 | |
915b3753 LP |
2451 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2452 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2453 | |
81270860 LP |
2454 | if (!log_on_console()) |
2455 | log_struct(LOG_INFO, | |
1ca6783f | 2456 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2457 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2458 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2459 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2460 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2fa4092c LP |
2461 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2462 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2463 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2464 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2465 | NULL); |
18fa6b27 | 2466 | } else { |
915b3753 | 2467 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2468 | initrd_usec = 0; |
2469 | ||
81270860 LP |
2470 | if (!log_on_console()) |
2471 | log_struct(LOG_INFO, | |
1ca6783f | 2472 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2473 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2474 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2475 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2fa4092c LP |
2476 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2477 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2478 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2479 | NULL); |
18fa6b27 LP |
2480 | } |
2481 | } else { | |
915b3753 LP |
2482 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2483 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2484 | |
81270860 LP |
2485 | if (!log_on_console()) |
2486 | log_struct(LOG_INFO, | |
1ca6783f | 2487 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 | 2488 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
81270860 | 2489 | "MESSAGE=Startup finished in %s.", |
2fa4092c | 2490 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2491 | NULL); |
18fa6b27 | 2492 | } |
b0c918b9 | 2493 | |
718db961 | 2494 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2495 | |
2496 | sd_notifyf(false, | |
2497 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2498 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2499 | } |
2500 | ||
07719a21 LP |
2501 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2502 | char *p; | |
2503 | int r; | |
2504 | ||
2505 | assert(m); | |
2506 | assert(generator); | |
2507 | assert(name); | |
2508 | ||
2509 | if (*generator) | |
2510 | return 0; | |
2511 | ||
67445f4e | 2512 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2513 | |
2514 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2515 | if (!p) |
2516 | return log_oom(); | |
07719a21 | 2517 | |
d2e54fae | 2518 | r = mkdir_p_label(p, 0755); |
07719a21 | 2519 | if (r < 0) { |
7ad94c71 ZJS |
2520 | log_error("Failed to create generator directory %s: %s", |
2521 | p, strerror(-r)); | |
07719a21 LP |
2522 | free(p); |
2523 | return r; | |
2524 | } | |
2525 | } else { | |
b7def684 | 2526 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2527 | if (!p) |
2528 | return log_oom(); | |
07719a21 LP |
2529 | |
2530 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2531 | log_error("Failed to create generator directory %s: %m", |
2532 | p); | |
34bf0281 | 2533 | free(p); |
07719a21 LP |
2534 | return -errno; |
2535 | } | |
2536 | } | |
2537 | ||
2538 | *generator = p; | |
2539 | return 0; | |
2540 | } | |
2541 | ||
2542 | static void trim_generator_dir(Manager *m, char **generator) { | |
2543 | assert(m); | |
2544 | assert(generator); | |
2545 | ||
2546 | if (!*generator) | |
2547 | return; | |
2548 | ||
2549 | if (rmdir(*generator) >= 0) { | |
2550 | free(*generator); | |
2551 | *generator = NULL; | |
2552 | } | |
2553 | ||
2554 | return; | |
2555 | } | |
2556 | ||
5a1e9937 | 2557 | void manager_run_generators(Manager *m) { |
718db961 | 2558 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2559 | const char *generator_path; |
07719a21 | 2560 | const char *argv[5]; |
07719a21 | 2561 | int r; |
5a1e9937 LP |
2562 | |
2563 | assert(m); | |
2564 | ||
67445f4e | 2565 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2566 | d = opendir(generator_path); |
2567 | if (!d) { | |
5a1e9937 LP |
2568 | if (errno == ENOENT) |
2569 | return; | |
2570 | ||
7ad94c71 ZJS |
2571 | log_error("Failed to enumerate generator directory %s: %m", |
2572 | generator_path); | |
5a1e9937 LP |
2573 | return; |
2574 | } | |
2575 | ||
07719a21 LP |
2576 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2577 | if (r < 0) | |
2578 | goto finish; | |
f1d19aa4 | 2579 | |
07719a21 LP |
2580 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2581 | if (r < 0) | |
2582 | goto finish; | |
5a1e9937 | 2583 | |
07719a21 LP |
2584 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2585 | if (r < 0) | |
2586 | goto finish; | |
5a1e9937 | 2587 | |
83cc030f LP |
2588 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2589 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2590 | argv[2] = m->generator_unit_path_early; |
2591 | argv[3] = m->generator_unit_path_late; | |
2592 | argv[4] = NULL; | |
5a1e9937 | 2593 | |
718db961 | 2594 | RUN_WITH_UMASK(0022) |
5c0d398d | 2595 | execute_directory(generator_path, d, (char**) argv); |
5a1e9937 | 2596 | |
718db961 | 2597 | finish: |
07719a21 LP |
2598 | trim_generator_dir(m, &m->generator_unit_path); |
2599 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2600 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2601 | } |
2602 | ||
07719a21 | 2603 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2604 | assert(m); |
07719a21 | 2605 | assert(generator); |
5a1e9937 | 2606 | |
07719a21 | 2607 | if (!*generator) |
5a1e9937 LP |
2608 | return; |
2609 | ||
07719a21 LP |
2610 | strv_remove(m->lookup_paths.unit_path, *generator); |
2611 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2612 | |
07719a21 LP |
2613 | free(*generator); |
2614 | *generator = NULL; | |
2615 | } | |
2616 | ||
2617 | void manager_undo_generators(Manager *m) { | |
2618 | assert(m); | |
2619 | ||
2620 | remove_generator_dir(m, &m->generator_unit_path); | |
2621 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2622 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2623 | } |
2624 | ||
718db961 LP |
2625 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2626 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2627 | assert(m); |
bcd8e6d1 | 2628 | |
718db961 | 2629 | l = m->environment; |
bcd8e6d1 | 2630 | |
718db961 LP |
2631 | if (!strv_isempty(minus)) { |
2632 | a = strv_env_delete(l, 1, minus); | |
2633 | if (!a) | |
2634 | return -ENOMEM; | |
2635 | ||
2636 | l = a; | |
2637 | } | |
2638 | ||
2639 | if (!strv_isempty(plus)) { | |
2640 | b = strv_env_merge(2, l, plus); | |
2641 | if (!b) | |
2642 | return -ENOMEM; | |
bcd8e6d1 | 2643 | |
718db961 LP |
2644 | l = b; |
2645 | } | |
2646 | ||
2647 | if (m->environment != l) | |
2648 | strv_free(m->environment); | |
2649 | if (a != l) | |
2650 | strv_free(a); | |
2651 | if (b != l) | |
2652 | strv_free(b); | |
2653 | ||
9d5a3757 | 2654 | m->environment = strv_sort(l); |
97d0e5f8 UTL |
2655 | return 0; |
2656 | } | |
2657 | ||
c93ff2e9 FC |
2658 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2659 | int i; | |
2660 | ||
2661 | assert(m); | |
2662 | ||
2663 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2664 | if (!default_rlimit[i]) |
2665 | continue; | |
c93ff2e9 | 2666 | |
07719a21 LP |
2667 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2668 | if (!m->rlimit[i]) | |
2669 | return -ENOMEM; | |
c93ff2e9 FC |
2670 | } |
2671 | ||
2672 | return 0; | |
2673 | } | |
2674 | ||
4cfa2c99 | 2675 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2676 | Unit *u; |
2677 | ||
2678 | assert(m); | |
2679 | ||
67445f4e | 2680 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2681 | return; |
2682 | ||
731a676c LP |
2683 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2684 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2685 | log_close_journal(); |
731a676c | 2686 | return; |
f1dd0c3f LP |
2687 | } |
2688 | ||
731a676c LP |
2689 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2690 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2691 | log_close_journal(); |
731a676c LP |
2692 | return; |
2693 | } | |
f1dd0c3f | 2694 | |
731a676c LP |
2695 | /* Hmm, OK, so the socket is fully up and the service is up |
2696 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2697 | log_open(); |
2698 | } | |
2699 | ||
27d340c7 LP |
2700 | void manager_set_show_status(Manager *m, bool b) { |
2701 | assert(m); | |
2702 | ||
67445f4e | 2703 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2704 | return; |
2705 | ||
2706 | m->show_status = b; | |
2707 | ||
2708 | if (b) | |
2709 | touch("/run/systemd/show-status"); | |
2710 | else | |
2711 | unlink("/run/systemd/show-status"); | |
2712 | } | |
2713 | ||
6084e22e | 2714 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2715 | assert(m); |
2716 | ||
67445f4e | 2717 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2718 | return false; |
2719 | ||
31a7eb86 ZJS |
2720 | if (m->no_console_output) |
2721 | return false; | |
2722 | ||
27d340c7 LP |
2723 | if (m->show_status) |
2724 | return true; | |
2725 | ||
2726 | /* If Plymouth is running make sure we show the status, so | |
2727 | * that there's something nice to see when people press Esc */ | |
2728 | ||
2729 | return plymouth_running(); | |
2730 | } | |
68b29a9f | 2731 | |
984a2be4 | 2732 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2733 | va_list ap; |
2734 | ||
2735 | if (!manager_get_show_status(m)) | |
2736 | return; | |
2737 | ||
03b717a3 MS |
2738 | /* XXX We should totally drop the check for ephemeral here |
2739 | * and thus effectively make 'Type=idle' pointless. */ | |
2740 | if (ephemeral && m->n_on_console > 0) | |
2741 | return; | |
2742 | ||
25cee550 MS |
2743 | if (!manager_is_booting_or_shutting_down(m)) |
2744 | return; | |
2745 | ||
2746 | va_start(ap, format); | |
984a2be4 | 2747 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2748 | va_end(ap); |
2749 | } | |
2750 | ||
a57f7e2c LP |
2751 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2752 | _cleanup_free_ char *p = NULL; | |
2753 | Unit *found; | |
2754 | ||
2755 | assert(m); | |
2756 | assert(path); | |
2757 | assert(suffix); | |
2758 | assert(_found); | |
2759 | ||
2760 | p = unit_name_from_path(path, suffix); | |
2761 | if (!p) | |
2762 | return -ENOMEM; | |
2763 | ||
2764 | found = manager_get_unit(m, p); | |
2765 | if (!found) { | |
2766 | *_found = NULL; | |
2767 | return 0; | |
2768 | } | |
2769 | ||
2770 | *_found = found; | |
2771 | return 1; | |
2772 | } | |
2773 | ||
2774 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2775 | char p[strlen(path)+1]; | |
2776 | ||
2777 | assert(m); | |
2778 | assert(path); | |
2779 | ||
2780 | strcpy(p, path); | |
2781 | path_kill_slashes(p); | |
2782 | ||
2783 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2784 | } |