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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 | 25 | #include <signal.h> |
9152c765 LP |
26 | #include <sys/wait.h> |
27 | #include <unistd.h> | |
28 | #include <sys/poll.h> | |
e1414003 LP |
29 | #include <sys/reboot.h> |
30 | #include <sys/ioctl.h> | |
31 | #include <linux/kd.h> | |
80876c20 LP |
32 | #include <termios.h> |
33 | #include <fcntl.h> | |
a16e1123 LP |
34 | #include <sys/types.h> |
35 | #include <sys/stat.h> | |
fe51822e | 36 | #include <dirent.h> |
8742514c | 37 | #include <sys/timerfd.h> |
830f6caa LP |
38 | |
39 | #ifdef HAVE_AUDIT | |
4927fcae | 40 | #include <libaudit.h> |
830f6caa | 41 | #endif |
60918275 | 42 | |
718db961 LP |
43 | #include "sd-daemon.h" |
44 | #include "sd-id128.h" | |
45 | #include "sd-messages.h" | |
81527be1 | 46 | |
60918275 | 47 | #include "manager.h" |
75778e21 | 48 | #include "transaction.h" |
60918275 LP |
49 | #include "hashmap.h" |
50 | #include "macro.h" | |
51 | #include "strv.h" | |
16354eff | 52 | #include "log.h" |
2a987ee8 | 53 | #include "util.h" |
49e942b2 | 54 | #include "mkdir.h" |
ea430986 | 55 | #include "ratelimit.h" |
e21fea24 | 56 | #include "locale-setup.h" |
8e274523 | 57 | #include "mount-setup.h" |
9e2f7c11 | 58 | #include "unit-name.h" |
1137a57c | 59 | #include "missing.h" |
84e3543e | 60 | #include "path-lookup.h" |
514f4ef5 | 61 | #include "special.h" |
d06dacd0 | 62 | #include "exit-status.h" |
5dc4c17f | 63 | #include "virt.h" |
e96d6be7 | 64 | #include "watchdog.h" |
b59e2465 | 65 | #include "cgroup-util.h" |
9eb977db | 66 | #include "path-util.h" |
c1165f82 | 67 | #include "audit-fd.h" |
c51d84dc | 68 | #include "boot-timestamps.h" |
8b55b8c4 | 69 | #include "env-util.h" |
718db961 LP |
70 | #include "bus-errors.h" |
71 | #include "bus-error.h" | |
72 | #include "bus-util.h" | |
73 | #include "dbus.h" | |
74 | #include "dbus-unit.h" | |
75 | #include "dbus-job.h" | |
76 | #include "dbus-manager.h" | |
e3dd987c | 77 | #include "bus-kernel.h" |
60918275 | 78 | |
701cc384 | 79 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 80 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 81 | |
03b717a3 | 82 | /* Initial delay and the interval for printing status messages about running jobs */ |
fd08a840 ZJS |
83 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
84 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
03b717a3 MS |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
86 | ||
c3e31c7b ZJS |
87 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
88 | ||
718db961 LP |
89 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
90 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
91 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
92 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
93 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 94 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 95 | |
03b717a3 | 96 | static int manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 ZJS |
97 | usec_t next; |
98 | ||
718db961 | 99 | assert(m); |
03b717a3 | 100 | |
718db961 | 101 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
102 | return 0; |
103 | ||
e5723c89 | 104 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
6a0f1f6d LP |
105 | return sd_event_add_time( |
106 | m->event, | |
107 | &m->jobs_in_progress_event_source, | |
108 | CLOCK_MONOTONIC, | |
109 | next, 0, | |
110 | manager_dispatch_jobs_in_progress, m); | |
03b717a3 MS |
111 | } |
112 | ||
718db961 | 113 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 114 | |
03b717a3 MS |
115 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
116 | char *p = buffer; | |
117 | ||
118 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
119 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
120 | ||
121 | if (pos > 1) { | |
6282c859 MS |
122 | if (pos > 2) |
123 | p = mempset(p, ' ', pos-2); | |
5052495b | 124 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
125 | *p++ = '*'; |
126 | } | |
127 | ||
128 | if (pos > 0 && pos <= width) { | |
5052495b | 129 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
130 | *p++ = '*'; |
131 | } | |
132 | ||
5052495b | 133 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
134 | |
135 | if (pos < width) { | |
5052495b | 136 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 137 | *p++ = '*'; |
6282c859 MS |
138 | if (pos < width-1) |
139 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 140 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 141 | } |
03b717a3 MS |
142 | } |
143 | ||
cb8ccb22 | 144 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
145 | assert(m); |
146 | ||
cb8ccb22 ZJS |
147 | if (enable) { |
148 | if (m->show_status == SHOW_STATUS_AUTO) | |
149 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
150 | } else { | |
151 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
152 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
153 | } | |
154 | } | |
155 | ||
03b717a3 | 156 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 157 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
158 | Iterator i; |
159 | Job *j; | |
03b717a3 MS |
160 | unsigned counter = 0, print_nr; |
161 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
162 | unsigned cylon_pos; | |
8bb310c3 ZJS |
163 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
164 | uint64_t x; | |
03b717a3 | 165 | |
718db961 LP |
166 | assert(m); |
167 | ||
cb8ccb22 | 168 | manager_flip_auto_status(m, true); |
d450b6f2 | 169 | |
03b717a3 MS |
170 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
171 | ||
172 | HASHMAP_FOREACH(j, m->jobs, i) | |
173 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
174 | break; | |
175 | ||
e970a72e MS |
176 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
177 | * so the above loop must have succeeded in finding j. */ | |
178 | assert(counter == print_nr + 1); | |
51d122af | 179 | assert(j); |
5a82a91a | 180 | |
03b717a3 MS |
181 | cylon_pos = m->jobs_in_progress_iteration % 14; |
182 | if (cylon_pos >= 8) | |
183 | cylon_pos = 14 - cylon_pos; | |
184 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
185 | ||
8bb310c3 ZJS |
186 | m->jobs_in_progress_iteration++; |
187 | ||
03b717a3 MS |
188 | if (m->n_running_jobs > 1) |
189 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
190 | job_of_n = NULL; | |
191 | ||
8bb310c3 ZJS |
192 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
193 | if (job_get_timeout(j, &x) > 0) | |
194 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
195 | ||
6b02bce7 | 196 | manager_status_printf(m, true, cylon, |
8bb310c3 ZJS |
197 | "%sA %s job is running for %s (%s / %s)", |
198 | strempty(job_of_n), | |
199 | job_type_to_string(j->type), | |
200 | unit_description(j->unit), | |
201 | time, limit); | |
03b717a3 | 202 | |
03b717a3 MS |
203 | } |
204 | ||
31a7eb86 | 205 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
206 | int r; |
207 | ||
718db961 LP |
208 | assert(m); |
209 | ||
210 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
211 | return 0; |
212 | ||
213 | if (m->idle_pipe[2] < 0) | |
214 | return 0; | |
215 | ||
151b9b96 | 216 | r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m); |
718db961 LP |
217 | if (r < 0) { |
218 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
219 | return r; | |
31a7eb86 ZJS |
220 | } |
221 | ||
31a7eb86 | 222 | return 0; |
31a7eb86 ZJS |
223 | } |
224 | ||
718db961 LP |
225 | static void manager_close_idle_pipe(Manager *m) { |
226 | assert(m); | |
31a7eb86 | 227 | |
3d94f76c LP |
228 | safe_close_pair(m->idle_pipe); |
229 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
230 | } |
231 | ||
8742514c | 232 | static int manager_setup_time_change(Manager *m) { |
718db961 | 233 | int r; |
b92bea5d ZJS |
234 | |
235 | /* We only care for the cancellation event, hence we set the | |
236 | * timeout to the latest possible value. */ | |
237 | struct itimerspec its = { | |
238 | .it_value.tv_sec = TIME_T_MAX, | |
239 | }; | |
8742514c | 240 | |
718db961 LP |
241 | assert(m); |
242 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c LP |
243 | |
244 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
245 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
246 | ||
718db961 LP |
247 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
248 | if (m->time_change_fd < 0) { | |
8742514c LP |
249 | log_error("Failed to create timerfd: %m"); |
250 | return -errno; | |
251 | } | |
252 | ||
718db961 | 253 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 254 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
03e334a1 | 255 | m->time_change_fd = safe_close(m->time_change_fd); |
8742514c LP |
256 | return 0; |
257 | } | |
258 | ||
151b9b96 | 259 | r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m); |
718db961 LP |
260 | if (r < 0) { |
261 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
262 | return r; | |
8742514c LP |
263 | } |
264 | ||
265 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
80876c20 | 270 | static int enable_special_signals(Manager *m) { |
718db961 | 271 | _cleanup_close_ int fd = -1; |
80876c20 LP |
272 | |
273 | assert(m); | |
274 | ||
a41b539e | 275 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
276 | * this will fail with EPERM (older) or EINVAL (newer), so |
277 | * ignore that. */ | |
278 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
279 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
280 | ||
a41b539e LP |
281 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
282 | if (fd < 0) { | |
283 | /* Support systems without virtual console */ | |
284 | if (fd != -ENOENT) | |
285 | log_warning("Failed to open /dev/tty0: %m"); | |
286 | } else { | |
80876c20 LP |
287 | /* Enable that we get SIGWINCH on kbrequest */ |
288 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 289 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
290 | } |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
ce578209 | 295 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
296 | struct sigaction sa = { |
297 | .sa_handler = SIG_DFL, | |
298 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
299 | }; | |
718db961 LP |
300 | sigset_t mask; |
301 | int r; | |
60918275 | 302 | |
ce578209 LP |
303 | assert(m); |
304 | ||
57c0c30e | 305 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
306 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
307 | ||
ce578209 | 308 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
309 | |
310 | sigset_add_many(&mask, | |
311 | SIGCHLD, /* Child died */ | |
312 | SIGTERM, /* Reexecute daemon */ | |
313 | SIGHUP, /* Reload configuration */ | |
314 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
315 | SIGUSR2, /* systemd: dump status */ | |
316 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
317 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
318 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
319 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 320 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
321 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
322 | SIGRTMIN+3, /* systemd: start halt.target */ | |
323 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
324 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
325 | SIGRTMIN+6, /* systemd: start kexec.target */ |
326 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
327 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
328 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
329 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
330 | SIGRTMIN+20, /* systemd: enable status messages */ |
331 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
332 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
333 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 334 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 335 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
336 | SIGRTMIN+27, /* systemd: set log target to console */ |
337 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
338 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 339 | -1); |
ce578209 LP |
340 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
341 | ||
718db961 LP |
342 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
343 | if (m->signal_fd < 0) | |
ce578209 LP |
344 | return -errno; |
345 | ||
151b9b96 | 346 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
347 | if (r < 0) |
348 | return r; | |
ce578209 | 349 | |
fa28bc2d LP |
350 | /* Process signals a bit earlier than the rest of things, but |
351 | * later that notify_fd processing, so that the notify | |
352 | * processing can still figure out to which process/service a | |
353 | * message belongs, before we reap the process. */ | |
29083707 LP |
354 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
355 | if (r < 0) | |
356 | return r; | |
357 | ||
67445f4e | 358 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 359 | return enable_special_signals(m); |
e1414003 | 360 | |
ce578209 LP |
361 | return 0; |
362 | } | |
363 | ||
f069efb4 LP |
364 | static void manager_clean_environment(Manager *m) { |
365 | assert(m); | |
366 | ||
367 | /* Let's remove some environment variables that we | |
368 | * need ourselves to communicate with our clients */ | |
369 | strv_env_unset_many( | |
370 | m->environment, | |
371 | "NOTIFY_SOCKET", | |
372 | "MAINPID", | |
373 | "MANAGERPID", | |
374 | "LISTEN_PID", | |
375 | "LISTEN_FDS", | |
376 | "WATCHDOG_PID", | |
377 | "WATCHDOG_USEC", | |
378 | NULL); | |
379 | } | |
380 | ||
e21fea24 | 381 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
382 | assert(m); |
383 | ||
e21fea24 KS |
384 | if (m->running_as == SYSTEMD_SYSTEM) { |
385 | /* The system manager always starts with a clean | |
386 | * environment for its children. It does not import | |
387 | * the kernel or the parents exported variables. | |
388 | * | |
389 | * The initial passed environ is untouched to keep | |
390 | * /proc/self/environ valid; it is used for tagging | |
391 | * the init process inside containers. */ | |
43638332 ZJS |
392 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
393 | NULL); | |
e21fea24 KS |
394 | |
395 | /* Import locale variables LC_*= from configuration */ | |
396 | locale_setup(&m->environment); | |
43d03a83 | 397 | } else { |
e21fea24 KS |
398 | /* The user manager passes its own environment |
399 | * along to its children. */ | |
400 | m->environment = strv_copy(environ); | |
43d03a83 LP |
401 | } |
402 | ||
e21fea24 KS |
403 | if (!m->environment) |
404 | return -ENOMEM; | |
8b55b8c4 | 405 | |
f069efb4 | 406 | manager_clean_environment(m); |
9d5a3757 LP |
407 | strv_sort(m->environment); |
408 | ||
e21fea24 | 409 | return 0; |
71ecc858 LP |
410 | } |
411 | ||
e3dd987c | 412 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 413 | Manager *m; |
e3dd987c | 414 | int r; |
8e274523 LP |
415 | |
416 | assert(_m); | |
a5dab5ce | 417 | assert(running_as >= 0); |
67445f4e | 418 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 419 | |
915b3753 LP |
420 | m = new0(Manager, 1); |
421 | if (!m) | |
8e274523 | 422 | return -ENOMEM; |
60918275 | 423 | |
4f8d551f | 424 | #ifdef ENABLE_EFI |
530a9662 | 425 | if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) |
c51d84dc | 426 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
427 | #endif |
428 | ||
a5dab5ce | 429 | m->running_as = running_as; |
a16e1123 | 430 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
bd8f585b | 431 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
80876c20 | 432 | |
718db961 | 433 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 434 | |
e3dd987c | 435 | 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 | 436 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 437 | |
e21fea24 KS |
438 | r = manager_default_environment(m); |
439 | if (r < 0) | |
1137a57c LP |
440 | goto fail; |
441 | ||
718db961 LP |
442 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
443 | if (r < 0) | |
60918275 LP |
444 | goto fail; |
445 | ||
718db961 LP |
446 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
447 | if (r < 0) | |
60918275 LP |
448 | goto fail; |
449 | ||
718db961 LP |
450 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
451 | if (r < 0) | |
9152c765 LP |
452 | goto fail; |
453 | ||
718db961 LP |
454 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
455 | if (r < 0) | |
05e343b7 LP |
456 | goto fail; |
457 | ||
95ae05c0 WC |
458 | r = set_ensure_allocated(&m->startup_units, trivial_hash_func, trivial_compare_func); |
459 | if (r < 0) | |
460 | goto fail; | |
461 | ||
f755e3b7 LP |
462 | r = set_ensure_allocated(&m->failed_units, trivial_hash_func, trivial_compare_func); |
463 | if (r < 0) | |
464 | goto fail; | |
465 | ||
718db961 LP |
466 | r = sd_event_default(&m->event); |
467 | if (r < 0) | |
8742514c LP |
468 | goto fail; |
469 | ||
151b9b96 | 470 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
752b5905 LP |
471 | if (r < 0) |
472 | goto fail; | |
473 | ||
474 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
475 | if (r < 0) | |
476 | goto fail; | |
477 | ||
478 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
479 | if (r < 0) | |
480 | goto fail; | |
481 | ||
8742514c LP |
482 | r = manager_setup_signals(m); |
483 | if (r < 0) | |
9152c765 LP |
484 | goto fail; |
485 | ||
8742514c LP |
486 | r = manager_setup_cgroup(m); |
487 | if (r < 0) | |
8e274523 LP |
488 | goto fail; |
489 | ||
8742514c LP |
490 | r = manager_setup_time_change(m); |
491 | if (r < 0) | |
8c47c732 LP |
492 | goto fail; |
493 | ||
9670d583 LP |
494 | m->udev = udev_new(); |
495 | if (!m->udev) { | |
496 | r = -ENOMEM; | |
497 | goto fail; | |
498 | } | |
499 | ||
d86f9d52 LP |
500 | /* Note that we set up neither kdbus, nor the notify fd |
501 | * here. We do that after deserialization, since they might | |
502 | * have gotten serialized across the reexec. */ | |
503 | ||
72bc8d00 LP |
504 | m->taint_usr = dir_is_empty("/usr") > 0; |
505 | ||
8e274523 LP |
506 | *_m = m; |
507 | return 0; | |
60918275 LP |
508 | |
509 | fail: | |
510 | manager_free(m); | |
8e274523 | 511 | return r; |
60918275 LP |
512 | } |
513 | ||
d86f9d52 | 514 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 515 | int r; |
d86f9d52 LP |
516 | |
517 | if (m->notify_fd < 0) { | |
518 | _cleanup_close_ int fd = -1; | |
7181dbdb LP |
519 | union { |
520 | struct sockaddr sa; | |
521 | struct sockaddr_un un; | |
522 | } sa = { | |
523 | .sa.sa_family = AF_UNIX, | |
524 | }; | |
525 | int one = 1; | |
d86f9d52 LP |
526 | |
527 | /* First free all secondary fields */ | |
528 | free(m->notify_socket); | |
529 | m->notify_socket = NULL; | |
530 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
531 | ||
532 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
533 | if (fd < 0) { | |
534 | log_error("Failed to allocate notification socket: %m"); | |
535 | return -errno; | |
536 | } | |
537 | ||
7181dbdb LP |
538 | if (m->running_as == SYSTEMD_SYSTEM) |
539 | m->notify_socket = strdup("/run/systemd/notify"); | |
540 | else { | |
541 | const char *e; | |
d86f9d52 | 542 | |
7181dbdb LP |
543 | e = getenv("XDG_RUNTIME_DIR"); |
544 | if (!e) { | |
545 | log_error("XDG_RUNTIME_DIR is not set: %m"); | |
546 | return -EINVAL; | |
547 | } | |
548 | ||
549 | m->notify_socket = strappend(e, "/systemd/notify"); | |
550 | } | |
551 | if (!m->notify_socket) | |
552 | return log_oom(); | |
553 | ||
554 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); | |
555 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
d86f9d52 | 556 | if (r < 0) { |
6b9732b2 | 557 | log_error("bind(@%s) failed: %m", sa.un.sun_path+1); |
d86f9d52 LP |
558 | return -errno; |
559 | } | |
560 | ||
561 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
562 | if (r < 0) { | |
563 | log_error("SO_PASSCRED failed: %m"); | |
564 | return -errno; | |
565 | } | |
566 | ||
d86f9d52 LP |
567 | m->notify_fd = fd; |
568 | fd = -1; | |
569 | ||
570 | log_debug("Using notification socket %s", m->notify_socket); | |
571 | } | |
572 | ||
573 | if (!m->notify_event_source) { | |
151b9b96 | 574 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
d86f9d52 LP |
575 | if (r < 0) { |
576 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
577 | return -errno; | |
578 | } | |
579 | ||
580 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
581 | * still identify to which service an exit message belongs */ | |
582 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
583 | if (r < 0) { | |
584 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
585 | return r; | |
586 | } | |
587 | } | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 593 | #ifdef ENABLE_KDBUS |
d86f9d52 | 594 | _cleanup_free_ char *p = NULL; |
5bf348d7 | 595 | #endif |
d86f9d52 | 596 | |
5bf348d7 | 597 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
598 | assert(m); |
599 | ||
d86f9d52 LP |
600 | if (m->kdbus_fd >= 0) |
601 | return 0; | |
602 | ||
f2769777 | 603 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
604 | if (m->kdbus_fd < 0) { |
605 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
606 | return m->kdbus_fd; | |
607 | } | |
608 | ||
609 | log_debug("Successfully set up kdbus on %s", p); | |
610 | ||
611 | /* Create the namespace directory here, so that the contents | |
612 | * of that directory is not visible to non-root users. This is | |
613 | * necessary to ensure that users cannot get access to busses | |
614 | * of virtualized users when no UID namespacing is used. */ | |
88c59cb3 | 615 | if (m->running_as == SYSTEMD_SYSTEM) |
486e99a3 | 616 | mkdir_p_label("/dev/kdbus/domain", 0700); |
d86f9d52 LP |
617 | #endif |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
623 | bool try_bus_connect; | |
624 | ||
625 | assert(m); | |
626 | ||
627 | try_bus_connect = | |
628 | m->kdbus_fd >= 0 || | |
629 | reexecuting || | |
630 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
631 | ||
632 | /* Try to connect to the busses, if possible. */ | |
633 | return bus_init(m, try_bus_connect); | |
634 | } | |
635 | ||
23a177ef | 636 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 637 | Unit *u; |
23a177ef LP |
638 | unsigned n = 0; |
639 | ||
640 | assert(m); | |
641 | ||
595ed347 MS |
642 | while ((u = m->cleanup_queue)) { |
643 | assert(u->in_cleanup_queue); | |
23a177ef | 644 | |
595ed347 | 645 | unit_free(u); |
23a177ef LP |
646 | n++; |
647 | } | |
648 | ||
649 | return n; | |
650 | } | |
651 | ||
eced69b3 | 652 | enum { |
35b8ca3a | 653 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
654 | GC_OFFSET_UNSURE, /* No clue */ |
655 | GC_OFFSET_GOOD, /* We still need this unit */ | |
656 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
657 | _GC_OFFSET_MAX | |
658 | }; | |
659 | ||
660 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
661 | Iterator i; |
662 | Unit *other; | |
eced69b3 | 663 | bool is_bad; |
701cc384 LP |
664 | |
665 | assert(u); | |
666 | ||
ac155bb8 MS |
667 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
668 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
669 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
670 | return; |
671 | ||
ac155bb8 | 672 | if (u->in_cleanup_queue) |
701cc384 LP |
673 | goto bad; |
674 | ||
675 | if (unit_check_gc(u)) | |
676 | goto good; | |
677 | ||
ac155bb8 | 678 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
679 | |
680 | is_bad = true; | |
681 | ||
ac155bb8 | 682 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
683 | unit_gc_sweep(other, gc_marker); |
684 | ||
ac155bb8 | 685 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 686 | goto good; |
eced69b3 | 687 | |
ac155bb8 | 688 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 689 | is_bad = false; |
701cc384 LP |
690 | } |
691 | ||
eced69b3 LP |
692 | if (is_bad) |
693 | goto bad; | |
694 | ||
695 | /* We were unable to find anything out about this entry, so | |
696 | * let's investigate it later */ | |
ac155bb8 | 697 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
698 | unit_add_to_gc_queue(u); |
699 | return; | |
700 | ||
701cc384 | 701 | bad: |
eced69b3 LP |
702 | /* We definitely know that this one is not useful anymore, so |
703 | * let's mark it for deletion */ | |
ac155bb8 | 704 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 705 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
706 | return; |
707 | ||
708 | good: | |
ac155bb8 | 709 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
710 | } |
711 | ||
712 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 713 | Unit *u; |
701cc384 | 714 | unsigned n = 0; |
eced69b3 | 715 | unsigned gc_marker; |
701cc384 LP |
716 | |
717 | assert(m); | |
718 | ||
cf1265e1 | 719 | /* log_debug("Running GC..."); */ |
701cc384 | 720 | |
eced69b3 LP |
721 | m->gc_marker += _GC_OFFSET_MAX; |
722 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 723 | m->gc_marker = 1; |
701cc384 | 724 | |
eced69b3 LP |
725 | gc_marker = m->gc_marker; |
726 | ||
595ed347 MS |
727 | while ((u = m->gc_queue)) { |
728 | assert(u->in_gc_queue); | |
701cc384 | 729 | |
595ed347 | 730 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 731 | |
71fda00f | 732 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 733 | u->in_gc_queue = false; |
701cc384 LP |
734 | |
735 | n++; | |
736 | ||
595ed347 MS |
737 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
738 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 739 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
740 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
741 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
742 | } |
743 | } | |
744 | ||
745 | m->n_in_gc_queue = 0; | |
701cc384 LP |
746 | |
747 | return n; | |
748 | } | |
749 | ||
a16e1123 | 750 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 751 | Unit *u; |
60918275 LP |
752 | |
753 | assert(m); | |
754 | ||
87f0e418 LP |
755 | while ((u = hashmap_first(m->units))) |
756 | unit_free(u); | |
964e0949 LP |
757 | |
758 | manager_dispatch_cleanup_queue(m); | |
759 | ||
760 | assert(!m->load_queue); | |
761 | assert(!m->run_queue); | |
762 | assert(!m->dbus_unit_queue); | |
763 | assert(!m->dbus_job_queue); | |
764 | assert(!m->cleanup_queue); | |
765 | assert(!m->gc_queue); | |
766 | ||
964e0949 LP |
767 | assert(hashmap_isempty(m->jobs)); |
768 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
769 | |
770 | m->n_on_console = 0; | |
771 | m->n_running_jobs = 0; | |
a16e1123 LP |
772 | } |
773 | ||
774 | void manager_free(Manager *m) { | |
775 | UnitType c; | |
c93ff2e9 | 776 | int i; |
87f0e418 | 777 | |
a16e1123 LP |
778 | assert(m); |
779 | ||
780 | manager_clear_jobs_and_units(m); | |
23a177ef | 781 | |
7824bbeb LP |
782 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
783 | if (unit_vtable[c]->shutdown) | |
784 | unit_vtable[c]->shutdown(m); | |
785 | ||
a16e1123 LP |
786 | /* If we reexecute ourselves, we keep the root cgroup |
787 | * around */ | |
c6c18be3 | 788 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 789 | |
5a1e9937 LP |
790 | manager_undo_generators(m); |
791 | ||
5e8d1c9a | 792 | bus_done(m); |
ea430986 | 793 | |
87f0e418 | 794 | hashmap_free(m->units); |
60918275 | 795 | hashmap_free(m->jobs); |
5ba6985b LP |
796 | hashmap_free(m->watch_pids1); |
797 | hashmap_free(m->watch_pids2); | |
05e343b7 | 798 | hashmap_free(m->watch_bus); |
9152c765 | 799 | |
95ae05c0 | 800 | set_free(m->startup_units); |
f755e3b7 LP |
801 | set_free(m->failed_units); |
802 | ||
718db961 LP |
803 | sd_event_source_unref(m->signal_event_source); |
804 | sd_event_source_unref(m->notify_event_source); | |
805 | sd_event_source_unref(m->time_change_event_source); | |
806 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
807 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 808 | sd_event_source_unref(m->run_queue_event_source); |
718db961 | 809 | |
03e334a1 LP |
810 | safe_close(m->signal_fd); |
811 | safe_close(m->notify_fd); | |
812 | safe_close(m->time_change_fd); | |
813 | safe_close(m->kdbus_fd); | |
718db961 LP |
814 | |
815 | manager_close_idle_pipe(m); | |
816 | ||
9670d583 | 817 | udev_unref(m->udev); |
718db961 | 818 | sd_event_unref(m->event); |
60918275 | 819 | |
c952c6ec LP |
820 | free(m->notify_socket); |
821 | ||
84e3543e | 822 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 823 | strv_free(m->environment); |
036643a2 | 824 | |
4ad49000 | 825 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 826 | set_free_free(m->unit_path_cache); |
33be102a | 827 | |
664f88a7 LP |
828 | free(m->switch_root); |
829 | free(m->switch_root_init); | |
830 | ||
517d56b1 | 831 | for (i = 0; i < _RLIMIT_MAX; i++) |
c93ff2e9 FC |
832 | free(m->rlimit[i]); |
833 | ||
a57f7e2c LP |
834 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
835 | hashmap_free(m->units_requiring_mounts_for); | |
836 | ||
60918275 LP |
837 | free(m); |
838 | } | |
839 | ||
a16e1123 LP |
840 | int manager_enumerate(Manager *m) { |
841 | int r = 0, q; | |
f50e0a01 | 842 | UnitType c; |
f50e0a01 LP |
843 | |
844 | assert(m); | |
845 | ||
a16e1123 LP |
846 | /* Let's ask every type to load all units from disk/kernel |
847 | * that it might know */ | |
f50e0a01 | 848 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
849 | if (unit_vtable[c]->enumerate) { |
850 | q = unit_vtable[c]->enumerate(m); | |
851 | if (q < 0) | |
a16e1123 | 852 | r = q; |
a57f7e2c | 853 | } |
f50e0a01 LP |
854 | |
855 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
856 | return r; |
857 | } | |
858 | ||
9588bc32 | 859 | static int manager_coldplug(Manager *m) { |
8f8f05a9 | 860 | int r = 0; |
a16e1123 LP |
861 | Iterator i; |
862 | Unit *u; | |
863 | char *k; | |
864 | ||
865 | assert(m); | |
f50e0a01 LP |
866 | |
867 | /* Then, let's set up their initial state. */ | |
868 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
8f8f05a9 | 869 | int q; |
f50e0a01 LP |
870 | |
871 | /* ignore aliases */ | |
ac155bb8 | 872 | if (u->id != k) |
f50e0a01 LP |
873 | continue; |
874 | ||
8f8f05a9 LP |
875 | q = unit_coldplug(u); |
876 | if (q < 0) | |
cca098b0 | 877 | r = q; |
f50e0a01 LP |
878 | } |
879 | ||
a16e1123 LP |
880 | return r; |
881 | } | |
882 | ||
fe51822e LP |
883 | static void manager_build_unit_path_cache(Manager *m) { |
884 | char **i; | |
7fd1b19b | 885 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
886 | int r; |
887 | ||
888 | assert(m); | |
889 | ||
890 | set_free_free(m->unit_path_cache); | |
891 | ||
874310b7 ZJS |
892 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
893 | if (!m->unit_path_cache) { | |
fe51822e LP |
894 | log_error("Failed to allocate unit path cache."); |
895 | return; | |
896 | } | |
897 | ||
898 | /* This simply builds a list of files we know exist, so that | |
899 | * we don't always have to go to disk */ | |
900 | ||
901 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
902 | struct dirent *de; | |
903 | ||
bd0af849 ZJS |
904 | d = opendir(*i); |
905 | if (!d) { | |
874310b7 ZJS |
906 | if (errno != ENOENT) |
907 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
908 | continue; |
909 | } | |
910 | ||
911 | while ((de = readdir(d))) { | |
912 | char *p; | |
913 | ||
914 | if (ignore_file(de->d_name)) | |
915 | continue; | |
916 | ||
b7def684 | 917 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 918 | if (!p) { |
fe51822e LP |
919 | r = -ENOMEM; |
920 | goto fail; | |
921 | } | |
922 | ||
ef42202a ZJS |
923 | r = set_consume(m->unit_path_cache, p); |
924 | if (r < 0) | |
fe51822e | 925 | goto fail; |
fe51822e LP |
926 | } |
927 | ||
928 | closedir(d); | |
929 | d = NULL; | |
930 | } | |
931 | ||
932 | return; | |
933 | ||
934 | fail: | |
935 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
936 | ||
937 | set_free_free(m->unit_path_cache); | |
938 | m->unit_path_cache = NULL; | |
fe51822e LP |
939 | } |
940 | ||
9588bc32 LP |
941 | |
942 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
943 | Unit *u; | |
944 | Iterator i; | |
945 | int r; | |
946 | ||
947 | assert(m); | |
948 | ||
949 | HASHMAP_FOREACH(u, m->units, i) { | |
950 | ||
951 | if (fdset_size(fds) <= 0) | |
952 | break; | |
953 | ||
954 | if (UNIT_VTABLE(u)->distribute_fds) { | |
955 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
956 | if (r < 0) | |
957 | return r; | |
958 | } | |
959 | } | |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
a16e1123 LP |
964 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
965 | int r, q; | |
966 | ||
967 | assert(m); | |
968 | ||
518d10e9 | 969 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 970 | manager_run_generators(m); |
518d10e9 | 971 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 972 | |
07719a21 LP |
973 | r = lookup_paths_init( |
974 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 975 | NULL, |
07719a21 LP |
976 | m->generator_unit_path, |
977 | m->generator_unit_path_early, | |
978 | m->generator_unit_path_late); | |
979 | if (r < 0) | |
980 | return r; | |
981 | ||
fe51822e LP |
982 | manager_build_unit_path_cache(m); |
983 | ||
9f611ad8 LP |
984 | /* If we will deserialize make sure that during enumeration |
985 | * this is already known, so we increase the counter here | |
986 | * already */ | |
987 | if (serialization) | |
a7556052 | 988 | m->n_reloading ++; |
9f611ad8 | 989 | |
a16e1123 | 990 | /* First, enumerate what we can from all config files */ |
718db961 | 991 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 992 | r = manager_enumerate(m); |
718db961 | 993 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
994 | |
995 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
996 | if (serialization) { |
997 | q = manager_deserialize(m, serialization, fds); | |
998 | if (q < 0) | |
a16e1123 | 999 | r = q; |
07719a21 | 1000 | } |
a16e1123 | 1001 | |
01e10de3 LP |
1002 | /* Any fds left? Find some unit which wants them. This is |
1003 | * useful to allow container managers to pass some file | |
1004 | * descriptors to us pre-initialized. This enables | |
1005 | * socket-based activation of entire containers. */ | |
1006 | if (fdset_size(fds) > 0) { | |
1007 | q = manager_distribute_fds(m, fds); | |
1008 | if (q < 0) | |
1009 | r = q; | |
1010 | } | |
1011 | ||
d86f9d52 LP |
1012 | /* We might have deserialized the notify fd, but if we didn't |
1013 | * then let's create the bus now */ | |
1014 | manager_setup_notify(m); | |
1015 | ||
e3dd987c LP |
1016 | /* We might have deserialized the kdbus control fd, but if we |
1017 | * didn't, then let's create the bus now. */ | |
1018 | manager_setup_kdbus(m); | |
1019 | manager_connect_bus(m, !!serialization); | |
8f8f05a9 | 1020 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); |
e3dd987c | 1021 | |
a16e1123 | 1022 | /* Third, fire things up! */ |
07719a21 LP |
1023 | q = manager_coldplug(m); |
1024 | if (q < 0) | |
a16e1123 LP |
1025 | r = q; |
1026 | ||
9f611ad8 | 1027 | if (serialization) { |
a7556052 LP |
1028 | assert(m->n_reloading > 0); |
1029 | m->n_reloading --; | |
71445ae7 LP |
1030 | |
1031 | /* Let's wait for the UnitNew/JobNew messages being | |
1032 | * sent, before we notify that the reload is | |
1033 | * finished */ | |
1034 | m->send_reloading_done = true; | |
9f611ad8 LP |
1035 | } |
1036 | ||
a16e1123 | 1037 | return r; |
f50e0a01 LP |
1038 | } |
1039 | ||
718db961 | 1040 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 1041 | int r; |
7527cb52 | 1042 | Transaction *tr; |
e5b5ae50 LP |
1043 | |
1044 | assert(m); | |
1045 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1046 | assert(unit); |
e5b5ae50 | 1047 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1048 | |
398ef8ba | 1049 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 1050 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 1051 | return -EINVAL; |
398ef8ba | 1052 | } |
c497c7a9 | 1053 | |
ac155bb8 | 1054 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 1055 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
1056 | return -EPERM; |
1057 | } | |
1058 | ||
66870f90 ZJS |
1059 | log_debug_unit(unit->id, |
1060 | "Trying to enqueue job %s/%s/%s", unit->id, | |
1061 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 1062 | |
e0209d83 MS |
1063 | job_type_collapse(&type, unit); |
1064 | ||
23ade460 | 1065 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1066 | if (!tr) |
1067 | return -ENOMEM; | |
11dd41ce | 1068 | |
7527cb52 MS |
1069 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1070 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1071 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1072 | if (r < 0) |
1073 | goto tr_abort; | |
c497c7a9 | 1074 | |
7527cb52 MS |
1075 | if (mode == JOB_ISOLATE) { |
1076 | r = transaction_add_isolate_jobs(tr, m); | |
1077 | if (r < 0) | |
1078 | goto tr_abort; | |
1079 | } | |
1080 | ||
1081 | r = transaction_activate(tr, m, mode, e); | |
1082 | if (r < 0) | |
1083 | goto tr_abort; | |
e5b5ae50 | 1084 | |
66870f90 ZJS |
1085 | log_debug_unit(unit->id, |
1086 | "Enqueued job %s/%s as %u", unit->id, | |
1087 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1088 | |
e5b5ae50 | 1089 | if (_ret) |
b94fbd30 | 1090 | *_ret = tr->anchor_job; |
60918275 | 1091 | |
7527cb52 | 1092 | transaction_free(tr); |
e5b5ae50 | 1093 | return 0; |
7527cb52 MS |
1094 | |
1095 | tr_abort: | |
1096 | transaction_abort(tr); | |
1097 | transaction_free(tr); | |
1098 | return r; | |
e5b5ae50 | 1099 | } |
60918275 | 1100 | |
718db961 | 1101 | 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 |
1102 | Unit *unit; |
1103 | int r; | |
1104 | ||
1105 | assert(m); | |
1106 | assert(type < _JOB_TYPE_MAX); | |
1107 | assert(name); | |
1108 | assert(mode < _JOB_MODE_MAX); | |
1109 | ||
c3090674 LP |
1110 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1111 | if (r < 0) | |
28247076 LP |
1112 | return r; |
1113 | ||
398ef8ba | 1114 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1115 | } |
1116 | ||
60918275 LP |
1117 | Job *manager_get_job(Manager *m, uint32_t id) { |
1118 | assert(m); | |
1119 | ||
1120 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1121 | } | |
1122 | ||
87f0e418 | 1123 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1124 | assert(m); |
1125 | assert(name); | |
1126 | ||
87f0e418 | 1127 | return hashmap_get(m->units, name); |
60918275 LP |
1128 | } |
1129 | ||
c1e1601e | 1130 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1131 | Unit *u; |
c1e1601e | 1132 | unsigned n = 0; |
60918275 LP |
1133 | |
1134 | assert(m); | |
1135 | ||
223dabab LP |
1136 | /* Make sure we are not run recursively */ |
1137 | if (m->dispatching_load_queue) | |
c1e1601e | 1138 | return 0; |
223dabab LP |
1139 | |
1140 | m->dispatching_load_queue = true; | |
1141 | ||
87f0e418 | 1142 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1143 | * tries to load its data until the queue is empty */ |
1144 | ||
595ed347 MS |
1145 | while ((u = m->load_queue)) { |
1146 | assert(u->in_load_queue); | |
034c6ed7 | 1147 | |
595ed347 | 1148 | unit_load(u); |
c1e1601e | 1149 | n++; |
60918275 LP |
1150 | } |
1151 | ||
223dabab | 1152 | m->dispatching_load_queue = false; |
c1e1601e | 1153 | return n; |
60918275 LP |
1154 | } |
1155 | ||
c2756a68 LP |
1156 | int manager_load_unit_prepare( |
1157 | Manager *m, | |
1158 | const char *name, | |
1159 | const char *path, | |
718db961 | 1160 | sd_bus_error *e, |
c2756a68 LP |
1161 | Unit **_ret) { |
1162 | ||
87f0e418 | 1163 | Unit *ret; |
7d17cfbc | 1164 | UnitType t; |
60918275 LP |
1165 | int r; |
1166 | ||
1167 | assert(m); | |
9e2f7c11 | 1168 | assert(name || path); |
60918275 | 1169 | |
db06e3b6 LP |
1170 | /* This will prepare the unit for loading, but not actually |
1171 | * load anything from disk. */ | |
0301abf4 | 1172 | |
718db961 LP |
1173 | if (path && !is_path(path)) |
1174 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1175 | |
1176 | if (!name) | |
2b6bf07d | 1177 | name = basename(path); |
9e2f7c11 | 1178 | |
7d17cfbc MS |
1179 | t = unit_name_to_type(name); |
1180 | ||
f78e6385 | 1181 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1182 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1183 | |
7d17cfbc MS |
1184 | ret = manager_get_unit(m, name); |
1185 | if (ret) { | |
034c6ed7 | 1186 | *_ret = ret; |
413d6313 | 1187 | return 1; |
034c6ed7 | 1188 | } |
60918275 | 1189 | |
7d17cfbc MS |
1190 | ret = unit_new(m, unit_vtable[t]->object_size); |
1191 | if (!ret) | |
60918275 LP |
1192 | return -ENOMEM; |
1193 | ||
7d17cfbc | 1194 | if (path) { |
ac155bb8 MS |
1195 | ret->fragment_path = strdup(path); |
1196 | if (!ret->fragment_path) { | |
0301abf4 LP |
1197 | unit_free(ret); |
1198 | return -ENOMEM; | |
1199 | } | |
7d17cfbc | 1200 | } |
0301abf4 | 1201 | |
1058cbf2 ZJS |
1202 | r = unit_add_name(ret, name); |
1203 | if (r < 0) { | |
87f0e418 | 1204 | unit_free(ret); |
1ffba6fe | 1205 | return r; |
60918275 LP |
1206 | } |
1207 | ||
87f0e418 | 1208 | unit_add_to_load_queue(ret); |
c1e1601e | 1209 | unit_add_to_dbus_queue(ret); |
949061f0 | 1210 | unit_add_to_gc_queue(ret); |
c1e1601e | 1211 | |
db06e3b6 LP |
1212 | if (_ret) |
1213 | *_ret = ret; | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
c2756a68 LP |
1218 | int manager_load_unit( |
1219 | Manager *m, | |
1220 | const char *name, | |
1221 | const char *path, | |
718db961 | 1222 | sd_bus_error *e, |
c2756a68 LP |
1223 | Unit **_ret) { |
1224 | ||
db06e3b6 LP |
1225 | int r; |
1226 | ||
1227 | assert(m); | |
1228 | ||
1229 | /* This will load the service information files, but not actually | |
1230 | * start any services or anything. */ | |
1231 | ||
c3090674 LP |
1232 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1233 | if (r != 0) | |
db06e3b6 LP |
1234 | return r; |
1235 | ||
f50e0a01 | 1236 | manager_dispatch_load_queue(m); |
60918275 | 1237 | |
9e2f7c11 | 1238 | if (_ret) |
413d6313 | 1239 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1240 | |
60918275 LP |
1241 | return 0; |
1242 | } | |
a66d02c3 | 1243 | |
cea8e32e | 1244 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1245 | Iterator i; |
a66d02c3 LP |
1246 | Job *j; |
1247 | ||
1248 | assert(s); | |
1249 | assert(f); | |
1250 | ||
034c6ed7 | 1251 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1252 | job_dump(j, f, prefix); |
a66d02c3 LP |
1253 | } |
1254 | ||
87f0e418 | 1255 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1256 | Iterator i; |
87f0e418 | 1257 | Unit *u; |
11dd41ce | 1258 | const char *t; |
a66d02c3 LP |
1259 | |
1260 | assert(s); | |
1261 | assert(f); | |
1262 | ||
87f0e418 | 1263 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1264 | if (u->id == t) |
87f0e418 | 1265 | unit_dump(u, f, prefix); |
a66d02c3 | 1266 | } |
7fad411c LP |
1267 | |
1268 | void manager_clear_jobs(Manager *m) { | |
1269 | Job *j; | |
1270 | ||
1271 | assert(m); | |
1272 | ||
7fad411c | 1273 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1274 | /* No need to recurse. We're cancelling all jobs. */ |
1275 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1276 | } |
83c60c9f | 1277 | |
752b5905 LP |
1278 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1279 | Manager *m = userdata; | |
83c60c9f | 1280 | Job *j; |
034c6ed7 | 1281 | |
752b5905 LP |
1282 | assert(source); |
1283 | assert(m); | |
9152c765 | 1284 | |
034c6ed7 | 1285 | while ((j = m->run_queue)) { |
ac1135be | 1286 | assert(j->installed); |
034c6ed7 LP |
1287 | assert(j->in_run_queue); |
1288 | ||
1289 | job_run_and_invalidate(j); | |
9152c765 | 1290 | } |
034c6ed7 | 1291 | |
a0b64226 | 1292 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1293 | manager_watch_jobs_in_progress(m); |
1294 | ||
31a7eb86 ZJS |
1295 | if (m->n_on_console > 0) |
1296 | manager_watch_idle_pipe(m); | |
1297 | ||
752b5905 | 1298 | return 1; |
c1e1601e LP |
1299 | } |
1300 | ||
9588bc32 | 1301 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1302 | Job *j; |
595ed347 | 1303 | Unit *u; |
c1e1601e LP |
1304 | unsigned n = 0; |
1305 | ||
1306 | assert(m); | |
1307 | ||
1308 | if (m->dispatching_dbus_queue) | |
1309 | return 0; | |
1310 | ||
1311 | m->dispatching_dbus_queue = true; | |
1312 | ||
595ed347 MS |
1313 | while ((u = m->dbus_unit_queue)) { |
1314 | assert(u->in_dbus_queue); | |
c1e1601e | 1315 | |
595ed347 | 1316 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1317 | n++; |
1318 | } | |
1319 | ||
1320 | while ((j = m->dbus_job_queue)) { | |
1321 | assert(j->in_dbus_queue); | |
1322 | ||
1323 | bus_job_send_change_signal(j); | |
1324 | n++; | |
1325 | } | |
1326 | ||
1327 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1328 | |
1329 | if (m->send_reloading_done) { | |
1330 | m->send_reloading_done = false; | |
1331 | ||
718db961 | 1332 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1333 | } |
1334 | ||
718db961 LP |
1335 | if (m->queued_message) |
1336 | bus_send_queued_message(m); | |
1337 | ||
c1e1601e | 1338 | return n; |
9152c765 LP |
1339 | } |
1340 | ||
5ba6985b LP |
1341 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) { |
1342 | _cleanup_strv_free_ char **tags = NULL; | |
1343 | ||
1344 | assert(m); | |
1345 | assert(u); | |
1346 | assert(buf); | |
1347 | assert(n > 0); | |
1348 | ||
1349 | tags = strv_split(buf, "\n\r"); | |
1350 | if (!tags) { | |
1351 | log_oom(); | |
1352 | return; | |
1353 | } | |
1354 | ||
1355 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); | |
1356 | ||
1357 | if (UNIT_VTABLE(u)->notify_message) | |
1358 | UNIT_VTABLE(u)->notify_message(u, pid, tags); | |
1359 | } | |
1360 | ||
718db961 LP |
1361 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1362 | Manager *m = userdata; | |
8c47c732 LP |
1363 | ssize_t n; |
1364 | ||
1365 | assert(m); | |
718db961 LP |
1366 | assert(m->notify_fd == fd); |
1367 | ||
1368 | if (revents != EPOLLIN) { | |
1369 | log_warning("Got unexpected poll event for notify fd."); | |
1370 | return 0; | |
1371 | } | |
8c47c732 LP |
1372 | |
1373 | for (;;) { | |
1374 | char buf[4096]; | |
b92bea5d ZJS |
1375 | struct iovec iovec = { |
1376 | .iov_base = buf, | |
1377 | .iov_len = sizeof(buf)-1, | |
1378 | }; | |
5ba6985b | 1379 | bool found = false; |
b92bea5d | 1380 | |
8c47c732 LP |
1381 | union { |
1382 | struct cmsghdr cmsghdr; | |
1383 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1384 | } control = {}; |
1385 | ||
1386 | struct msghdr msghdr = { | |
1387 | .msg_iov = &iovec, | |
1388 | .msg_iovlen = 1, | |
1389 | .msg_control = &control, | |
1390 | .msg_controllen = sizeof(control), | |
1391 | }; | |
1392 | struct ucred *ucred; | |
8c47c732 | 1393 | Unit *u; |
8c47c732 | 1394 | |
718db961 | 1395 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1396 | if (n <= 0) { |
b92bea5d | 1397 | if (n == 0) |
8c47c732 LP |
1398 | return -EIO; |
1399 | ||
f6144808 | 1400 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1401 | break; |
1402 | ||
1403 | return -errno; | |
1404 | } | |
1405 | ||
1406 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1407 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1408 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1409 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1410 | log_warning("Received notify message without credentials. Ignoring."); | |
1411 | continue; | |
1412 | } | |
1413 | ||
1414 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1415 | ||
8c40acf7 LP |
1416 | assert((size_t) n < sizeof(buf)); |
1417 | buf[n] = 0; | |
8c47c732 | 1418 | |
5ba6985b LP |
1419 | u = manager_get_unit_by_pid(m, ucred->pid); |
1420 | if (u) { | |
1421 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1422 | found = true; | |
1423 | } | |
1424 | ||
1425 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); | |
1426 | if (u) { | |
1427 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1428 | found = true; | |
1429 | } | |
1430 | ||
1431 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); | |
1432 | if (u) { | |
1433 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1434 | found = true; | |
1435 | } | |
8c47c732 | 1436 | |
5ba6985b LP |
1437 | if (!found) |
1438 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
8c47c732 LP |
1439 | } |
1440 | ||
1441 | return 0; | |
1442 | } | |
1443 | ||
5ba6985b LP |
1444 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1445 | assert(m); | |
1446 | assert(u); | |
1447 | assert(si); | |
1448 | ||
1449 | log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); | |
1450 | ||
1451 | unit_unwatch_pid(u, si->si_pid); | |
1452 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1453 | } | |
1454 | ||
034c6ed7 | 1455 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1456 | assert(m); |
1457 | ||
1458 | for (;;) { | |
b92bea5d | 1459 | siginfo_t si = {}; |
9152c765 | 1460 | |
4112df16 LP |
1461 | /* First we call waitd() for a PID and do not reap the |
1462 | * zombie. That way we can still access /proc/$PID for | |
1463 | * it while it is a zombie. */ | |
1464 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1465 | |
1466 | if (errno == ECHILD) | |
1467 | break; | |
1468 | ||
4112df16 LP |
1469 | if (errno == EINTR) |
1470 | continue; | |
1471 | ||
9152c765 | 1472 | return -errno; |
acbb0225 | 1473 | } |
9152c765 | 1474 | |
4112df16 | 1475 | if (si.si_pid <= 0) |
9152c765 LP |
1476 | break; |
1477 | ||
15d5d9d9 | 1478 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1479 | _cleanup_free_ char *name = NULL; |
5ba6985b | 1480 | Unit *u; |
4112df16 | 1481 | |
87d2c1ff | 1482 | get_process_comm(si.si_pid, &name); |
4112df16 | 1483 | |
5ba6985b LP |
1484 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1485 | si.si_pid, strna(name), | |
1486 | sigchld_code_to_string(si.si_code), | |
1487 | si.si_status, | |
1488 | strna(si.si_code == CLD_EXITED | |
1489 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1490 | : signal_to_string(si.si_status))); | |
1491 | ||
1492 | /* And now figure out the unit this belongs | |
1493 | * to, it might be multiple... */ | |
4ad49000 | 1494 | u = manager_get_unit_by_pid(m, si.si_pid); |
5ba6985b LP |
1495 | if (u) |
1496 | invoke_sigchld_event(m, u, &si); | |
1497 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); | |
1498 | if (u) | |
1499 | invoke_sigchld_event(m, u, &si); | |
1500 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); | |
1501 | if (u) | |
1502 | invoke_sigchld_event(m, u, &si); | |
1503 | } | |
8c47c732 | 1504 | |
4112df16 LP |
1505 | /* And now, we actually reap the zombie. */ |
1506 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1507 | if (errno == EINTR) | |
1508 | continue; | |
1509 | ||
1510 | return -errno; | |
1511 | } | |
9152c765 LP |
1512 | } |
1513 | ||
1514 | return 0; | |
1515 | } | |
1516 | ||
7d793605 | 1517 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1518 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1519 | int r; |
398ef8ba | 1520 | |
66870f90 | 1521 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1522 | |
bd0af849 ZJS |
1523 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1524 | if (r < 0) | |
718db961 | 1525 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1526 | |
1527 | return r; | |
28247076 LP |
1528 | } |
1529 | ||
718db961 LP |
1530 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1531 | Manager *m = userdata; | |
9152c765 LP |
1532 | ssize_t n; |
1533 | struct signalfd_siginfo sfsi; | |
1534 | bool sigchld = false; | |
1535 | ||
1536 | assert(m); | |
718db961 LP |
1537 | assert(m->signal_fd == fd); |
1538 | ||
1539 | if (revents != EPOLLIN) { | |
1540 | log_warning("Got unexpected events from signal file descriptor."); | |
1541 | return 0; | |
1542 | } | |
9152c765 LP |
1543 | |
1544 | for (;;) { | |
718db961 | 1545 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1546 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1547 | |
1548 | if (n >= 0) | |
1549 | return -EIO; | |
1550 | ||
63090775 | 1551 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1552 | break; |
9152c765 LP |
1553 | |
1554 | return -errno; | |
1555 | } | |
1556 | ||
4daf54a8 ZJS |
1557 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
1558 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1559 | ? LOG_DEBUG : LOG_INFO, | |
1560 | &sfsi); | |
1e001f52 | 1561 | |
b9cd2ec1 LP |
1562 | switch (sfsi.ssi_signo) { |
1563 | ||
4112df16 | 1564 | case SIGCHLD: |
9152c765 | 1565 | sigchld = true; |
b9cd2ec1 LP |
1566 | break; |
1567 | ||
6632c602 | 1568 | case SIGTERM: |
67445f4e | 1569 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1570 | /* This is for compatibility with the |
1571 | * original sysvinit */ | |
e11dc4a2 | 1572 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1573 | break; |
1574 | } | |
84e9af1e | 1575 | |
a1b256b0 | 1576 | /* Fall through */ |
e11dc4a2 LP |
1577 | |
1578 | case SIGINT: | |
67445f4e | 1579 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1580 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1581 | break; |
1582 | } | |
1583 | ||
a1b256b0 | 1584 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1585 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1586 | m->exit_code = MANAGER_EXIT; |
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | break; | |
84e9af1e | 1591 | |
28247076 | 1592 | case SIGWINCH: |
67445f4e | 1593 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1594 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1595 | |
28247076 LP |
1596 | /* This is a nop on non-init */ |
1597 | break; | |
84e9af1e | 1598 | |
28247076 | 1599 | case SIGPWR: |
67445f4e | 1600 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1601 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1602 | |
28247076 | 1603 | /* This is a nop on non-init */ |
84e9af1e | 1604 | break; |
6632c602 | 1605 | |
1005d14f | 1606 | case SIGUSR1: { |
57ee42ce LP |
1607 | Unit *u; |
1608 | ||
1609 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1610 | ||
1611 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1612 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1613 | bus_init(m, true); |
57ee42ce LP |
1614 | } |
1615 | ||
1616 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1617 | log_info("Loading D-Bus service..."); | |
7d793605 | 1618 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1619 | } |
1620 | ||
1621 | break; | |
1622 | } | |
1623 | ||
2149e37c | 1624 | case SIGUSR2: { |
718db961 LP |
1625 | _cleanup_free_ char *dump = NULL; |
1626 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1627 | size_t size; |
1628 | ||
718db961 LP |
1629 | f = open_memstream(&dump, &size); |
1630 | if (!f) { | |
2149e37c LP |
1631 | log_warning("Failed to allocate memory stream."); |
1632 | break; | |
1633 | } | |
1634 | ||
1635 | manager_dump_units(m, f, "\t"); | |
1636 | manager_dump_jobs(m, f, "\t"); | |
1637 | ||
1638 | if (ferror(f)) { | |
2149e37c LP |
1639 | log_warning("Failed to write status stream"); |
1640 | break; | |
1641 | } | |
1642 | ||
b2cdc666 DM |
1643 | if (fflush(f)) { |
1644 | log_warning("Failed to flush status stream"); | |
1645 | break; | |
1646 | } | |
1647 | ||
2149e37c | 1648 | log_dump(LOG_INFO, dump); |
1005d14f | 1649 | break; |
2149e37c | 1650 | } |
1005d14f | 1651 | |
a16e1123 LP |
1652 | case SIGHUP: |
1653 | m->exit_code = MANAGER_RELOAD; | |
1654 | break; | |
1655 | ||
7d793605 | 1656 | default: { |
253ee27a | 1657 | |
0003d1ab LP |
1658 | /* Starting SIGRTMIN+0 */ |
1659 | static const char * const target_table[] = { | |
7d793605 LP |
1660 | [0] = SPECIAL_DEFAULT_TARGET, |
1661 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1662 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1663 | [3] = SPECIAL_HALT_TARGET, |
1664 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1665 | [5] = SPECIAL_REBOOT_TARGET, |
1666 | [6] = SPECIAL_KEXEC_TARGET | |
1667 | }; | |
1668 | ||
1669 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1670 | static const ManagerExitCode code_table[] = { | |
1671 | [0] = MANAGER_HALT, | |
1672 | [1] = MANAGER_POWEROFF, | |
1673 | [2] = MANAGER_REBOOT, | |
1674 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1675 | }; |
1676 | ||
1677 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1678 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1679 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1680 | manager_start_target(m, target_table[idx], | |
1681 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1682 | break; |
1683 | } | |
1684 | ||
0003d1ab LP |
1685 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1686 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1687 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1688 | break; | |
1689 | } | |
1690 | ||
0658666b LP |
1691 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1692 | ||
1693 | case 20: | |
1694 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1695 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1696 | break; |
1697 | ||
1698 | case 21: | |
1699 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1700 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1701 | break; |
1702 | ||
253ee27a LP |
1703 | case 22: |
1704 | log_set_max_level(LOG_DEBUG); | |
1705 | log_notice("Setting log level to debug."); | |
1706 | break; | |
1707 | ||
1708 | case 23: | |
1709 | log_set_max_level(LOG_INFO); | |
1710 | log_notice("Setting log level to info."); | |
1711 | break; | |
1712 | ||
600b704e LP |
1713 | case 24: |
1714 | if (m->running_as == SYSTEMD_USER) { | |
1715 | m->exit_code = MANAGER_EXIT; | |
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | /* This is a nop on init */ | |
1720 | break; | |
1721 | ||
4cfa2c99 LP |
1722 | case 26: |
1723 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1724 | log_notice("Setting log target to journal-or-kmsg."); | |
1725 | break; | |
1726 | ||
253ee27a LP |
1727 | case 27: |
1728 | log_set_target(LOG_TARGET_CONSOLE); | |
1729 | log_notice("Setting log target to console."); | |
1730 | break; | |
1731 | ||
1732 | case 28: | |
1733 | log_set_target(LOG_TARGET_KMSG); | |
1734 | log_notice("Setting log target to kmsg."); | |
1735 | break; | |
1736 | ||
1737 | case 29: | |
1738 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1739 | log_notice("Setting log target to syslog-or-kmsg."); | |
1740 | break; | |
1741 | ||
0658666b | 1742 | default: |
4e240ab0 | 1743 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1744 | } |
b9cd2ec1 | 1745 | } |
7d793605 | 1746 | } |
9152c765 LP |
1747 | } |
1748 | ||
1749 | if (sigchld) | |
7b77ed8c | 1750 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1751 | |
1752 | return 0; | |
1753 | } | |
1754 | ||
718db961 LP |
1755 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1756 | Manager *m = userdata; | |
1757 | Iterator i; | |
1758 | Unit *u; | |
034c6ed7 LP |
1759 | |
1760 | assert(m); | |
718db961 | 1761 | assert(m->time_change_fd == fd); |
034c6ed7 | 1762 | |
718db961 LP |
1763 | log_struct(LOG_INFO, |
1764 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1765 | "MESSAGE=Time has been changed", | |
1766 | NULL); | |
034c6ed7 | 1767 | |
718db961 LP |
1768 | /* Restart the watch */ |
1769 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
03e334a1 | 1770 | m->time_change_fd = safe_close(m->time_change_fd); |
ef734fd6 | 1771 | |
718db961 | 1772 | manager_setup_time_change(m); |
4e434314 | 1773 | |
718db961 LP |
1774 | HASHMAP_FOREACH(u, m->units, i) |
1775 | if (UNIT_VTABLE(u)->time_change) | |
1776 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1777 | |
718db961 LP |
1778 | return 0; |
1779 | } | |
ea430986 | 1780 | |
718db961 LP |
1781 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1782 | Manager *m = userdata; | |
8742514c | 1783 | |
718db961 LP |
1784 | assert(m); |
1785 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1786 | |
718db961 | 1787 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1788 | |
718db961 LP |
1789 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1790 | manager_close_idle_pipe(m); | |
03b717a3 | 1791 | |
718db961 LP |
1792 | return 0; |
1793 | } | |
31a7eb86 | 1794 | |
718db961 LP |
1795 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1796 | Manager *m = userdata; | |
fd08a840 ZJS |
1797 | int r; |
1798 | uint64_t next; | |
31a7eb86 | 1799 | |
718db961 | 1800 | assert(m); |
fd08a840 | 1801 | assert(source); |
9152c765 | 1802 | |
718db961 | 1803 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1804 | |
1805 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1806 | r = sd_event_source_set_time(source, next); | |
1807 | if (r < 0) | |
1808 | return r; | |
1809 | ||
1810 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1811 | } |
1812 | ||
1813 | int manager_loop(Manager *m) { | |
1814 | int r; | |
9152c765 | 1815 | |
fac9f8df | 1816 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1817 | |
9152c765 | 1818 | assert(m); |
f755e3b7 | 1819 | m->exit_code = MANAGER_OK; |
9152c765 | 1820 | |
fe51822e LP |
1821 | /* Release the path cache */ |
1822 | set_free_free(m->unit_path_cache); | |
1823 | m->unit_path_cache = NULL; | |
1824 | ||
b0c918b9 LP |
1825 | manager_check_finished(m); |
1826 | ||
a4312405 | 1827 | /* There might still be some zombies hanging around from |
f3669545 | 1828 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1829 | r = manager_dispatch_sigchld(m); |
1830 | if (r < 0) | |
a4312405 LP |
1831 | return r; |
1832 | ||
f755e3b7 | 1833 | while (m->exit_code == MANAGER_OK) { |
718db961 | 1834 | usec_t wait_usec; |
9152c765 | 1835 | |
67445f4e | 1836 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1837 | watchdog_ping(); |
1838 | ||
ea430986 LP |
1839 | if (!ratelimit_test(&rl)) { |
1840 | /* Yay, something is going seriously wrong, pause a little */ | |
1841 | log_warning("Looping too fast. Throttling execution a little."); | |
1842 | sleep(1); | |
e96d6be7 | 1843 | continue; |
ea430986 LP |
1844 | } |
1845 | ||
37a8e683 | 1846 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1847 | continue; |
1848 | ||
cf1265e1 | 1849 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1850 | continue; |
1851 | ||
cf1265e1 | 1852 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1853 | continue; |
034c6ed7 | 1854 | |
cf1265e1 | 1855 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1856 | continue; |
1857 | ||
c1e1601e | 1858 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1859 | continue; |
ea430986 | 1860 | |
c757a65b | 1861 | /* Sleep for half the watchdog time */ |
67445f4e | 1862 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1863 | wait_usec = m->runtime_watchdog / 2; |
1864 | if (wait_usec <= 0) | |
1865 | wait_usec = 1; | |
c757a65b | 1866 | } else |
718db961 | 1867 | wait_usec = (usec_t) -1; |
9152c765 | 1868 | |
718db961 LP |
1869 | r = sd_event_run(m->event, wait_usec); |
1870 | if (r < 0) { | |
1871 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1872 | return r; |
718db961 | 1873 | } |
a16e1123 | 1874 | } |
957ca890 | 1875 | |
a16e1123 | 1876 | return m->exit_code; |
83c60c9f | 1877 | } |
ea430986 | 1878 | |
718db961 | 1879 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1880 | _cleanup_free_ char *n = NULL; |
ea430986 | 1881 | Unit *u; |
80fbf05e | 1882 | int r; |
ea430986 LP |
1883 | |
1884 | assert(m); | |
1885 | assert(s); | |
1886 | assert(_u); | |
1887 | ||
ede3a796 LP |
1888 | r = unit_name_from_dbus_path(s, &n); |
1889 | if (r < 0) | |
1890 | return r; | |
ea430986 | 1891 | |
80fbf05e | 1892 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1893 | if (r < 0) |
1894 | return r; | |
ea430986 LP |
1895 | |
1896 | *_u = u; | |
1897 | ||
1898 | return 0; | |
1899 | } | |
86fbf370 LP |
1900 | |
1901 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1902 | const char *p; |
86fbf370 | 1903 | unsigned id; |
718db961 | 1904 | Job *j; |
86fbf370 LP |
1905 | int r; |
1906 | ||
1907 | assert(m); | |
1908 | assert(s); | |
1909 | assert(_j); | |
1910 | ||
718db961 LP |
1911 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1912 | if (!p) | |
86fbf370 LP |
1913 | return -EINVAL; |
1914 | ||
718db961 | 1915 | r = safe_atou(p, &id); |
8742514c | 1916 | if (r < 0) |
86fbf370 LP |
1917 | return r; |
1918 | ||
8742514c LP |
1919 | j = manager_get_job(m, id); |
1920 | if (!j) | |
86fbf370 LP |
1921 | return -ENOENT; |
1922 | ||
1923 | *_j = j; | |
1924 | ||
1925 | return 0; | |
1926 | } | |
dfcd764e | 1927 | |
4927fcae | 1928 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1929 | |
4927fcae | 1930 | #ifdef HAVE_AUDIT |
2ba11090 | 1931 | _cleanup_free_ char *p = NULL; |
c1165f82 | 1932 | int audit_fd; |
e537352b | 1933 | |
c1165f82 LP |
1934 | audit_fd = get_audit_fd(); |
1935 | if (audit_fd < 0) | |
e537352b LP |
1936 | return; |
1937 | ||
bbd3a7ba LP |
1938 | /* Don't generate audit events if the service was already |
1939 | * started and we're just deserializing */ | |
a7556052 | 1940 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1941 | return; |
1942 | ||
67445f4e | 1943 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1944 | return; |
1945 | ||
ac155bb8 | 1946 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1947 | return; |
1948 | ||
bd0af849 ZJS |
1949 | p = unit_name_to_prefix_and_instance(u->id); |
1950 | if (!p) { | |
66870f90 ZJS |
1951 | log_error_unit(u->id, |
1952 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1953 | return; |
1954 | } | |
1955 | ||
c1165f82 | 1956 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1957 | if (errno == EPERM) { |
1958 | /* We aren't allowed to send audit messages? | |
44785992 | 1959 | * Then let's not retry again. */ |
c1165f82 | 1960 | close_audit_fd(); |
44785992 LP |
1961 | } else |
1962 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1963 | } |
4927fcae | 1964 | #endif |
e537352b | 1965 | |
e537352b LP |
1966 | } |
1967 | ||
e983b760 | 1968 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
2ba11090 | 1969 | union sockaddr_union sa = { |
49888ca9 | 1970 | .un.sun_family = AF_UNIX, |
2ba11090 ZJS |
1971 | .un.sun_path = "\0/org/freedesktop/plymouthd", |
1972 | }; | |
1973 | ||
e983b760 | 1974 | int n = 0; |
2ba11090 ZJS |
1975 | _cleanup_free_ char *message = NULL; |
1976 | _cleanup_close_ int fd = -1; | |
e983b760 LP |
1977 | |
1978 | /* Don't generate plymouth events if the service was already | |
1979 | * started and we're just deserializing */ | |
a7556052 | 1980 | if (m->n_reloading > 0) |
e983b760 LP |
1981 | return; |
1982 | ||
67445f4e | 1983 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1984 | return; |
1985 | ||
3772995a LP |
1986 | if (detect_container(NULL) > 0) |
1987 | return; | |
1988 | ||
ac155bb8 MS |
1989 | if (u->type != UNIT_SERVICE && |
1990 | u->type != UNIT_MOUNT && | |
1991 | u->type != UNIT_SWAP) | |
e983b760 LP |
1992 | return; |
1993 | ||
1994 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1995 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1996 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1997 | if (fd < 0) { | |
e983b760 LP |
1998 | log_error("socket() failed: %m"); |
1999 | return; | |
2000 | } | |
2001 | ||
96707269 | 2002 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
e983b760 | 2003 | |
2ba11090 | 2004 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
e983b760 | 2005 | log_error("connect() failed: %m"); |
2ba11090 | 2006 | return; |
e983b760 LP |
2007 | } |
2008 | ||
ac155bb8 | 2009 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2010 | log_oom(); |
2ba11090 | 2011 | return; |
e983b760 LP |
2012 | } |
2013 | ||
2014 | errno = 0; | |
2ba11090 ZJS |
2015 | if (write(fd, message, n + 1) != n + 1) |
2016 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
e983b760 | 2017 | log_error("Failed to write Plymouth message: %m"); |
e983b760 LP |
2018 | } |
2019 | ||
05e343b7 LP |
2020 | void manager_dispatch_bus_name_owner_changed( |
2021 | Manager *m, | |
2022 | const char *name, | |
2023 | const char* old_owner, | |
2024 | const char *new_owner) { | |
2025 | ||
2026 | Unit *u; | |
2027 | ||
2028 | assert(m); | |
2029 | assert(name); | |
2030 | ||
718db961 LP |
2031 | u = hashmap_get(m->watch_bus, name); |
2032 | if (!u) | |
05e343b7 LP |
2033 | return; |
2034 | ||
2035 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2036 | } | |
2037 | ||
d8d5ab98 | 2038 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2039 | const char *path; |
df28bc08 | 2040 | int fd = -1; |
a16e1123 LP |
2041 | FILE *f; |
2042 | ||
2043 | assert(_f); | |
2044 | ||
8e33886e ZJS |
2045 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2046 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2047 | if (fd < 0) |
a16e1123 | 2048 | return -errno; |
a16e1123 | 2049 | |
a16e1123 | 2050 | log_debug("Serializing state to %s", path); |
a16e1123 | 2051 | |
01e10de3 | 2052 | f = fdopen(fd, "w+"); |
d86f9d52 | 2053 | if (!f) { |
03e334a1 | 2054 | safe_close(fd); |
a16e1123 | 2055 | return -errno; |
d86f9d52 | 2056 | } |
a16e1123 LP |
2057 | |
2058 | *_f = f; | |
2059 | ||
2060 | return 0; | |
2061 | } | |
2062 | ||
b3680f49 | 2063 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2064 | Iterator i; |
2065 | Unit *u; | |
2066 | const char *t; | |
4a9fd066 | 2067 | char **e; |
a16e1123 LP |
2068 | int r; |
2069 | ||
2070 | assert(m); | |
2071 | assert(f); | |
2072 | assert(fds); | |
2073 | ||
a7556052 | 2074 | m->n_reloading ++; |
38c52d46 | 2075 | |
01d67b43 LP |
2076 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2077 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2078 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2079 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2080 | |
915b3753 | 2081 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2082 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2083 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2084 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2085 | |
26a1efdf | 2086 | if (!in_initrd()) { |
915b3753 | 2087 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2088 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2089 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2090 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2091 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2092 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2093 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2094 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2095 | } |
47a483a1 | 2096 | |
b3680f49 HH |
2097 | if (!switching_root) { |
2098 | STRV_FOREACH(e, m->environment) { | |
2099 | _cleanup_free_ char *ce; | |
4a9fd066 | 2100 | |
b3680f49 | 2101 | ce = cescape(*e); |
e3dd987c LP |
2102 | if (!ce) |
2103 | return -ENOMEM; | |
2104 | ||
2105 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2106 | } |
4a9fd066 OS |
2107 | } |
2108 | ||
d86f9d52 LP |
2109 | if (m->notify_fd >= 0) { |
2110 | int copy; | |
2111 | ||
2112 | copy = fdset_put_dup(fds, m->notify_fd); | |
2113 | if (copy < 0) | |
2114 | return copy; | |
2115 | ||
2116 | fprintf(f, "notify-fd=%i\n", copy); | |
2117 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2118 | } | |
2119 | ||
e3dd987c LP |
2120 | if (m->kdbus_fd >= 0) { |
2121 | int copy; | |
2122 | ||
2123 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2124 | if (copy < 0) | |
2125 | return copy; | |
2126 | ||
2127 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2128 | } | |
2129 | ||
8f8f05a9 | 2130 | bus_track_serialize(m->subscribed, f); |
6fa48533 | 2131 | |
f2382a94 LP |
2132 | fputc('\n', f); |
2133 | ||
a16e1123 | 2134 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2135 | if (u->id != t) |
a16e1123 LP |
2136 | continue; |
2137 | ||
a16e1123 | 2138 | /* Start marker */ |
ac155bb8 | 2139 | fputs(u->id, f); |
a16e1123 LP |
2140 | fputc('\n', f); |
2141 | ||
6fa48533 LP |
2142 | r = unit_serialize(u, f, fds, !switching_root); |
2143 | if (r < 0) { | |
a7556052 | 2144 | m->n_reloading --; |
a16e1123 | 2145 | return r; |
38c52d46 | 2146 | } |
a16e1123 LP |
2147 | } |
2148 | ||
a7556052 LP |
2149 | assert(m->n_reloading > 0); |
2150 | m->n_reloading --; | |
38c52d46 | 2151 | |
a16e1123 LP |
2152 | if (ferror(f)) |
2153 | return -EIO; | |
2154 | ||
b23de6af LP |
2155 | r = bus_fdset_add_all(m, fds); |
2156 | if (r < 0) | |
2157 | return r; | |
2158 | ||
a16e1123 LP |
2159 | return 0; |
2160 | } | |
2161 | ||
2162 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2163 | int r = 0; | |
2164 | ||
2165 | assert(m); | |
2166 | assert(f); | |
2167 | ||
2168 | log_debug("Deserializing state..."); | |
2169 | ||
a7556052 | 2170 | m->n_reloading ++; |
82c64bf5 | 2171 | |
10f8e83c | 2172 | for (;;) { |
20c03b7b | 2173 | char line[LINE_MAX], *l; |
10f8e83c LP |
2174 | |
2175 | if (!fgets(line, sizeof(line), f)) { | |
2176 | if (feof(f)) | |
2177 | r = 0; | |
2178 | else | |
2179 | r = -errno; | |
2180 | ||
2181 | goto finish; | |
2182 | } | |
2183 | ||
2184 | char_array_0(line); | |
2185 | l = strstrip(line); | |
2186 | ||
2187 | if (l[0] == 0) | |
2188 | break; | |
2189 | ||
01d67b43 LP |
2190 | if (startswith(l, "current-job-id=")) { |
2191 | uint32_t id; | |
2192 | ||
2193 | if (safe_atou32(l+15, &id) < 0) | |
2194 | log_debug("Failed to parse current job id value %s", l+15); | |
2195 | else | |
2196 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2197 | |
33c5fae9 LP |
2198 | } else if (startswith(l, "n-installed-jobs=")) { |
2199 | uint32_t n; | |
2200 | ||
2201 | if (safe_atou32(l+17, &n) < 0) | |
2202 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2203 | else | |
2204 | m->n_installed_jobs += n; | |
718db961 | 2205 | |
33c5fae9 LP |
2206 | } else if (startswith(l, "n-failed-jobs=")) { |
2207 | uint32_t n; | |
2208 | ||
2209 | if (safe_atou32(l+14, &n) < 0) | |
2210 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2211 | else | |
2212 | m->n_failed_jobs += n; | |
718db961 | 2213 | |
01d67b43 LP |
2214 | } else if (startswith(l, "taint-usr=")) { |
2215 | int b; | |
2216 | ||
e3dd987c LP |
2217 | b = parse_boolean(l+10); |
2218 | if (b < 0) | |
01d67b43 LP |
2219 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2220 | else | |
2221 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2222 | |
915b3753 LP |
2223 | } else if (startswith(l, "firmware-timestamp=")) |
2224 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2225 | else if (startswith(l, "loader-timestamp=")) | |
2226 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2227 | else if (startswith(l, "kernel-timestamp=")) | |
2228 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2229 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2230 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2231 | else if (startswith(l, "userspace-timestamp=")) |
2232 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2233 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2234 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2235 | else if (startswith(l, "security-start-timestamp=")) |
2236 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2237 | else if (startswith(l, "security-finish-timestamp=")) | |
2238 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2239 | else if (startswith(l, "generators-start-timestamp=")) | |
2240 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2241 | else if (startswith(l, "generators-finish-timestamp=")) | |
2242 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2243 | else if (startswith(l, "units-load-start-timestamp=")) | |
2244 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2245 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2246 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2247 | else if (startswith(l, "env=")) { |
2248 | _cleanup_free_ char *uce = NULL; | |
2249 | char **e; | |
2250 | ||
2251 | uce = cunescape(l+4); | |
2252 | if (!uce) { | |
2253 | r = -ENOMEM; | |
2254 | goto finish; | |
2255 | } | |
2256 | ||
2257 | e = strv_env_set(m->environment, uce); | |
2258 | if (!e) { | |
2259 | r = -ENOMEM; | |
2260 | goto finish; | |
2261 | } | |
2262 | ||
2263 | strv_free(m->environment); | |
2264 | m->environment = e; | |
e3dd987c | 2265 | |
d86f9d52 LP |
2266 | } else if (startswith(l, "notify-fd=")) { |
2267 | int fd; | |
2268 | ||
2269 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2270 | log_debug("Failed to parse notify fd: %s", l + 10); | |
2271 | else { | |
03e334a1 LP |
2272 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
2273 | safe_close(m->notify_fd); | |
d86f9d52 LP |
2274 | m->notify_fd = fdset_remove(fds, fd); |
2275 | } | |
2276 | ||
2277 | } else if (startswith(l, "notify-socket=")) { | |
2278 | char *n; | |
2279 | ||
2280 | n = strdup(l+14); | |
2281 | if (!n) { | |
2282 | r = -ENOMEM; | |
2283 | goto finish; | |
2284 | } | |
2285 | ||
2286 | free(m->notify_socket); | |
2287 | m->notify_socket = n; | |
2288 | ||
e3dd987c LP |
2289 | } else if (startswith(l, "kdbus-fd=")) { |
2290 | int fd; | |
2291 | ||
8bf9fcf4 | 2292 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2293 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2294 | else { | |
03e334a1 | 2295 | safe_close(m->kdbus_fd); |
e3dd987c LP |
2296 | m->kdbus_fd = fdset_remove(fds, fd); |
2297 | } | |
2298 | ||
8f8f05a9 | 2299 | } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0) |
10f8e83c LP |
2300 | log_debug("Unknown serialization item '%s'", l); |
2301 | } | |
2302 | ||
a16e1123 LP |
2303 | for (;;) { |
2304 | Unit *u; | |
2305 | char name[UNIT_NAME_MAX+2]; | |
2306 | ||
2307 | /* Start marker */ | |
2308 | if (!fgets(name, sizeof(name), f)) { | |
2309 | if (feof(f)) | |
10f8e83c LP |
2310 | r = 0; |
2311 | else | |
2312 | r = -errno; | |
a16e1123 | 2313 | |
82c64bf5 | 2314 | goto finish; |
a16e1123 LP |
2315 | } |
2316 | ||
2317 | char_array_0(name); | |
2318 | ||
bd0af849 ZJS |
2319 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2320 | if (r < 0) | |
82c64bf5 | 2321 | goto finish; |
a16e1123 | 2322 | |
01e10de3 LP |
2323 | r = unit_deserialize(u, f, fds); |
2324 | if (r < 0) | |
82c64bf5 | 2325 | goto finish; |
a16e1123 LP |
2326 | } |
2327 | ||
10f8e83c | 2328 | finish: |
145b1f79 | 2329 | if (ferror(f)) |
82c64bf5 | 2330 | r = -EIO; |
a16e1123 | 2331 | |
a7556052 LP |
2332 | assert(m->n_reloading > 0); |
2333 | m->n_reloading --; | |
82c64bf5 LP |
2334 | |
2335 | return r; | |
a16e1123 LP |
2336 | } |
2337 | ||
2338 | int manager_reload(Manager *m) { | |
2339 | int r, q; | |
51d122af ZJS |
2340 | _cleanup_fclose_ FILE *f = NULL; |
2341 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2342 | |
2343 | assert(m); | |
2344 | ||
07719a21 LP |
2345 | r = manager_open_serialization(m, &f); |
2346 | if (r < 0) | |
a16e1123 LP |
2347 | return r; |
2348 | ||
a7556052 | 2349 | m->n_reloading ++; |
718db961 | 2350 | bus_manager_send_reloading(m, true); |
38c52d46 | 2351 | |
07719a21 LP |
2352 | fds = fdset_new(); |
2353 | if (!fds) { | |
a7556052 | 2354 | m->n_reloading --; |
51d122af | 2355 | return -ENOMEM; |
a16e1123 LP |
2356 | } |
2357 | ||
b3680f49 | 2358 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2359 | if (r < 0) { |
a7556052 | 2360 | m->n_reloading --; |
51d122af | 2361 | return r; |
38c52d46 | 2362 | } |
a16e1123 LP |
2363 | |
2364 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2365 | m->n_reloading --; |
51d122af | 2366 | return -errno; |
a16e1123 LP |
2367 | } |
2368 | ||
2369 | /* From here on there is no way back. */ | |
2370 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2371 | manager_undo_generators(m); |
84e3543e | 2372 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2373 | |
07719a21 | 2374 | /* Find new unit paths */ |
5a1e9937 LP |
2375 | manager_run_generators(m); |
2376 | ||
07719a21 LP |
2377 | q = lookup_paths_init( |
2378 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 2379 | NULL, |
07719a21 LP |
2380 | m->generator_unit_path, |
2381 | m->generator_unit_path_early, | |
2382 | m->generator_unit_path_late); | |
2383 | if (q < 0) | |
2384 | r = q; | |
2385 | ||
5a1e9937 LP |
2386 | manager_build_unit_path_cache(m); |
2387 | ||
a16e1123 | 2388 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2389 | q = manager_enumerate(m); |
2390 | if (q < 0) | |
a16e1123 LP |
2391 | r = q; |
2392 | ||
2393 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2394 | q = manager_deserialize(m, f, fds); |
2395 | if (q < 0) | |
a16e1123 LP |
2396 | r = q; |
2397 | ||
2398 | fclose(f); | |
2399 | f = NULL; | |
2400 | ||
a2cc4a6c ZJS |
2401 | /* Re-register notify_fd as event source */ |
2402 | q = manager_setup_notify(m); | |
2403 | if (q < 0) | |
2404 | r = q; | |
2405 | ||
a16e1123 | 2406 | /* Third, fire things up! */ |
07719a21 LP |
2407 | q = manager_coldplug(m); |
2408 | if (q < 0) | |
a16e1123 LP |
2409 | r = q; |
2410 | ||
a7556052 LP |
2411 | assert(m->n_reloading > 0); |
2412 | m->n_reloading--; | |
9f611ad8 | 2413 | |
71445ae7 LP |
2414 | m->send_reloading_done = true; |
2415 | ||
a16e1123 LP |
2416 | return r; |
2417 | } | |
2418 | ||
c17ec25e MS |
2419 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2420 | assert(m); | |
2421 | ||
2422 | return m->n_reloading != 0; | |
2423 | } | |
2424 | ||
fdf20a31 | 2425 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2426 | Unit *u; |
2427 | Iterator i; | |
2428 | ||
2429 | assert(m); | |
2430 | ||
2431 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2432 | unit_reset_failed(u); |
5632e374 LP |
2433 | } |
2434 | ||
31afa0a4 | 2435 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2436 | Unit *u; |
2437 | ||
2438 | assert(m); | |
2439 | assert(name); | |
2440 | ||
2441 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2442 | u = manager_get_unit(m, name); |
2443 | if (!u) | |
8f6df3fa LP |
2444 | return true; |
2445 | ||
31afa0a4 | 2446 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2447 | } |
2448 | ||
b0c918b9 | 2449 | void manager_check_finished(Manager *m) { |
7ceba241 | 2450 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2451 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
95ae05c0 WC |
2452 | Unit *u = NULL; |
2453 | Iterator i; | |
b0c918b9 LP |
2454 | |
2455 | assert(m); | |
2456 | ||
a0b64226 | 2457 | if (m->n_running_jobs == 0) |
718db961 | 2458 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2459 | |
828db5d8 | 2460 | if (hashmap_size(m->jobs) > 0) { |
f755e3b7 | 2461 | |
fd08a840 | 2462 | if (m->jobs_in_progress_event_source) { |
f755e3b7 LP |
2463 | sd_event_source_set_time(m->jobs_in_progress_event_source, |
2464 | now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
fd08a840 | 2465 | } |
f755e3b7 | 2466 | |
b0c918b9 | 2467 | return; |
5b176ee0 | 2468 | } |
b0c918b9 | 2469 | |
cb8ccb22 | 2470 | manager_flip_auto_status(m, false); |
d450b6f2 | 2471 | |
f2b68789 | 2472 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2473 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2474 | manager_close_idle_pipe(m); | |
f2b68789 | 2475 | |
af6da548 LP |
2476 | /* Turn off confirm spawn now */ |
2477 | m->confirm_spawn = false; | |
2478 | ||
418b9be5 | 2479 | /* This is no longer the first boot */ |
e2680723 | 2480 | manager_set_first_boot(m, false); |
418b9be5 | 2481 | |
f2b68789 | 2482 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2483 | return; |
2484 | ||
2485 | dual_timestamp_get(&m->finish_timestamp); | |
2486 | ||
67445f4e | 2487 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2488 | |
915b3753 LP |
2489 | /* Note that m->kernel_usec.monotonic is always at 0, |
2490 | * and m->firmware_usec.monotonic and | |
2491 | * m->loader_usec.monotonic should be considered | |
2492 | * negative values. */ | |
2493 | ||
7ceba241 LP |
2494 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2495 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2496 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2497 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2498 | |
e9ddabc2 | 2499 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2500 | |
915b3753 LP |
2501 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2502 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2503 | |
81270860 LP |
2504 | if (!log_on_console()) |
2505 | log_struct(LOG_INFO, | |
1ca6783f | 2506 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2507 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2508 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2509 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2510 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2fa4092c LP |
2511 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2512 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2513 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2514 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2515 | NULL); |
18fa6b27 | 2516 | } else { |
915b3753 | 2517 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2518 | initrd_usec = 0; |
2519 | ||
81270860 LP |
2520 | if (!log_on_console()) |
2521 | log_struct(LOG_INFO, | |
1ca6783f | 2522 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2523 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2524 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2525 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2fa4092c LP |
2526 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2527 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2528 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2529 | NULL); |
18fa6b27 LP |
2530 | } |
2531 | } else { | |
915b3753 LP |
2532 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2533 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2534 | |
81270860 LP |
2535 | if (!log_on_console()) |
2536 | log_struct(LOG_INFO, | |
1ca6783f | 2537 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 | 2538 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
81270860 | 2539 | "MESSAGE=Startup finished in %s.", |
2fa4092c | 2540 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2541 | NULL); |
18fa6b27 | 2542 | } |
b0c918b9 | 2543 | |
db785129 | 2544 | SET_FOREACH(u, m->startup_units, i) |
285cd771 UTL |
2545 | if (u->cgroup_path) |
2546 | cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m)); | |
95ae05c0 | 2547 | |
718db961 | 2548 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2549 | |
2550 | sd_notifyf(false, | |
2551 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2552 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2553 | } |
2554 | ||
07719a21 LP |
2555 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2556 | char *p; | |
2557 | int r; | |
2558 | ||
2559 | assert(m); | |
2560 | assert(generator); | |
2561 | assert(name); | |
2562 | ||
2563 | if (*generator) | |
2564 | return 0; | |
2565 | ||
67445f4e | 2566 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2567 | /* systemd --system, not running --test */ |
07719a21 LP |
2568 | |
2569 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2570 | if (!p) |
2571 | return log_oom(); | |
07719a21 | 2572 | |
fcc81ea3 KS |
2573 | r = mkdir_p_label(p, 0755); |
2574 | if (r < 0) { | |
2575 | log_error("Failed to create generator directory %s: %s", | |
2576 | p, strerror(-r)); | |
2577 | free(p); | |
2578 | return r; | |
2579 | } | |
2580 | } else if (m->running_as == SYSTEMD_USER) { | |
2581 | const char *s = NULL; | |
2582 | ||
2583 | s = getenv("XDG_RUNTIME_DIR"); | |
2584 | if (!s) | |
2585 | return -EINVAL; | |
2586 | p = strjoin(s, "/systemd/", name, NULL); | |
2587 | if (!p) | |
2588 | return log_oom(); | |
2589 | ||
d2e54fae | 2590 | r = mkdir_p_label(p, 0755); |
07719a21 | 2591 | if (r < 0) { |
7ad94c71 ZJS |
2592 | log_error("Failed to create generator directory %s: %s", |
2593 | p, strerror(-r)); | |
07719a21 LP |
2594 | free(p); |
2595 | return r; | |
2596 | } | |
2597 | } else { | |
fcc81ea3 KS |
2598 | /* systemd --system --test */ |
2599 | ||
b7def684 | 2600 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2601 | if (!p) |
2602 | return log_oom(); | |
07719a21 LP |
2603 | |
2604 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2605 | log_error("Failed to create generator directory %s: %m", |
2606 | p); | |
34bf0281 | 2607 | free(p); |
07719a21 LP |
2608 | return -errno; |
2609 | } | |
2610 | } | |
2611 | ||
2612 | *generator = p; | |
2613 | return 0; | |
2614 | } | |
2615 | ||
2616 | static void trim_generator_dir(Manager *m, char **generator) { | |
2617 | assert(m); | |
2618 | assert(generator); | |
2619 | ||
2620 | if (!*generator) | |
2621 | return; | |
2622 | ||
2623 | if (rmdir(*generator) >= 0) { | |
2624 | free(*generator); | |
2625 | *generator = NULL; | |
2626 | } | |
2627 | ||
2628 | return; | |
2629 | } | |
2630 | ||
5a1e9937 | 2631 | void manager_run_generators(Manager *m) { |
718db961 | 2632 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2633 | const char *generator_path; |
07719a21 | 2634 | const char *argv[5]; |
07719a21 | 2635 | int r; |
5a1e9937 LP |
2636 | |
2637 | assert(m); | |
2638 | ||
67445f4e | 2639 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2640 | d = opendir(generator_path); |
2641 | if (!d) { | |
5a1e9937 LP |
2642 | if (errno == ENOENT) |
2643 | return; | |
2644 | ||
7ad94c71 ZJS |
2645 | log_error("Failed to enumerate generator directory %s: %m", |
2646 | generator_path); | |
5a1e9937 LP |
2647 | return; |
2648 | } | |
2649 | ||
07719a21 LP |
2650 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2651 | if (r < 0) | |
2652 | goto finish; | |
f1d19aa4 | 2653 | |
07719a21 LP |
2654 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2655 | if (r < 0) | |
2656 | goto finish; | |
5a1e9937 | 2657 | |
07719a21 LP |
2658 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2659 | if (r < 0) | |
2660 | goto finish; | |
5a1e9937 | 2661 | |
83cc030f LP |
2662 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2663 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2664 | argv[2] = m->generator_unit_path_early; |
2665 | argv[3] = m->generator_unit_path_late; | |
2666 | argv[4] = NULL; | |
5a1e9937 | 2667 | |
718db961 | 2668 | RUN_WITH_UMASK(0022) |
e2680723 | 2669 | execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv); |
5a1e9937 | 2670 | |
718db961 | 2671 | finish: |
07719a21 LP |
2672 | trim_generator_dir(m, &m->generator_unit_path); |
2673 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2674 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2675 | } |
2676 | ||
07719a21 | 2677 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2678 | assert(m); |
07719a21 | 2679 | assert(generator); |
5a1e9937 | 2680 | |
07719a21 | 2681 | if (!*generator) |
5a1e9937 LP |
2682 | return; |
2683 | ||
07719a21 LP |
2684 | strv_remove(m->lookup_paths.unit_path, *generator); |
2685 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2686 | |
07719a21 LP |
2687 | free(*generator); |
2688 | *generator = NULL; | |
2689 | } | |
2690 | ||
2691 | void manager_undo_generators(Manager *m) { | |
2692 | assert(m); | |
2693 | ||
2694 | remove_generator_dir(m, &m->generator_unit_path); | |
2695 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2696 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2697 | } |
2698 | ||
718db961 LP |
2699 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2700 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2701 | assert(m); |
bcd8e6d1 | 2702 | |
718db961 | 2703 | l = m->environment; |
bcd8e6d1 | 2704 | |
718db961 LP |
2705 | if (!strv_isempty(minus)) { |
2706 | a = strv_env_delete(l, 1, minus); | |
2707 | if (!a) | |
2708 | return -ENOMEM; | |
2709 | ||
2710 | l = a; | |
2711 | } | |
2712 | ||
2713 | if (!strv_isempty(plus)) { | |
2714 | b = strv_env_merge(2, l, plus); | |
2715 | if (!b) | |
2716 | return -ENOMEM; | |
bcd8e6d1 | 2717 | |
718db961 LP |
2718 | l = b; |
2719 | } | |
2720 | ||
2721 | if (m->environment != l) | |
2722 | strv_free(m->environment); | |
2723 | if (a != l) | |
2724 | strv_free(a); | |
2725 | if (b != l) | |
2726 | strv_free(b); | |
2727 | ||
f069efb4 LP |
2728 | m->environment = l; |
2729 | manager_clean_environment(m); | |
2730 | strv_sort(m->environment); | |
2731 | ||
97d0e5f8 UTL |
2732 | return 0; |
2733 | } | |
2734 | ||
c93ff2e9 FC |
2735 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2736 | int i; | |
2737 | ||
2738 | assert(m); | |
2739 | ||
517d56b1 | 2740 | for (i = 0; i < _RLIMIT_MAX; i++) { |
07719a21 LP |
2741 | if (!default_rlimit[i]) |
2742 | continue; | |
c93ff2e9 | 2743 | |
07719a21 LP |
2744 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2745 | if (!m->rlimit[i]) | |
2746 | return -ENOMEM; | |
c93ff2e9 FC |
2747 | } |
2748 | ||
2749 | return 0; | |
2750 | } | |
2751 | ||
4cfa2c99 | 2752 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2753 | Unit *u; |
2754 | ||
2755 | assert(m); | |
2756 | ||
67445f4e | 2757 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2758 | return; |
2759 | ||
731a676c LP |
2760 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2761 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2762 | log_close_journal(); |
731a676c | 2763 | return; |
f1dd0c3f LP |
2764 | } |
2765 | ||
731a676c LP |
2766 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2767 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2768 | log_close_journal(); |
731a676c LP |
2769 | return; |
2770 | } | |
f1dd0c3f | 2771 | |
731a676c LP |
2772 | /* Hmm, OK, so the socket is fully up and the service is up |
2773 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2774 | log_open(); |
2775 | } | |
2776 | ||
d450b6f2 | 2777 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2778 | assert(m); |
d450b6f2 | 2779 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2780 | |
67445f4e | 2781 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2782 | return; |
2783 | ||
d450b6f2 | 2784 | m->show_status = mode; |
27d340c7 | 2785 | |
d450b6f2 | 2786 | if (mode > 0) |
27d340c7 LP |
2787 | touch("/run/systemd/show-status"); |
2788 | else | |
2789 | unlink("/run/systemd/show-status"); | |
2790 | } | |
2791 | ||
6084e22e | 2792 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2793 | assert(m); |
2794 | ||
67445f4e | 2795 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2796 | return false; |
2797 | ||
31a7eb86 ZJS |
2798 | if (m->no_console_output) |
2799 | return false; | |
2800 | ||
08510627 LP |
2801 | if (!IN_SET(manager_state(m), MANAGER_STARTING, MANAGER_STOPPING)) |
2802 | return false; | |
2803 | ||
d450b6f2 | 2804 | if (m->show_status > 0) |
27d340c7 LP |
2805 | return true; |
2806 | ||
2807 | /* If Plymouth is running make sure we show the status, so | |
2808 | * that there's something nice to see when people press Esc */ | |
2809 | ||
2810 | return plymouth_running(); | |
2811 | } | |
68b29a9f | 2812 | |
e2680723 LP |
2813 | void manager_set_first_boot(Manager *m, bool b) { |
2814 | assert(m); | |
2815 | ||
2816 | if (m->running_as != SYSTEMD_SYSTEM) | |
2817 | return; | |
2818 | ||
2819 | m->first_boot = b; | |
2820 | ||
2821 | if (m->first_boot) | |
2822 | touch("/run/systemd/first-boot"); | |
2823 | else | |
2824 | unlink("/run/systemd/first-boot"); | |
2825 | } | |
2826 | ||
984a2be4 | 2827 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2828 | va_list ap; |
2829 | ||
2830 | if (!manager_get_show_status(m)) | |
2831 | return; | |
2832 | ||
03b717a3 MS |
2833 | /* XXX We should totally drop the check for ephemeral here |
2834 | * and thus effectively make 'Type=idle' pointless. */ | |
2835 | if (ephemeral && m->n_on_console > 0) | |
2836 | return; | |
2837 | ||
25cee550 | 2838 | va_start(ap, format); |
984a2be4 | 2839 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2840 | va_end(ap); |
2841 | } | |
2842 | ||
a57f7e2c LP |
2843 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2844 | _cleanup_free_ char *p = NULL; | |
2845 | Unit *found; | |
2846 | ||
2847 | assert(m); | |
2848 | assert(path); | |
2849 | assert(suffix); | |
2850 | assert(_found); | |
2851 | ||
2852 | p = unit_name_from_path(path, suffix); | |
2853 | if (!p) | |
2854 | return -ENOMEM; | |
2855 | ||
2856 | found = manager_get_unit(m, p); | |
2857 | if (!found) { | |
2858 | *_found = NULL; | |
2859 | return 0; | |
2860 | } | |
2861 | ||
2862 | *_found = found; | |
2863 | return 1; | |
2864 | } | |
2865 | ||
2866 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2867 | char p[strlen(path)+1]; | |
2868 | ||
2869 | assert(m); | |
2870 | assert(path); | |
2871 | ||
2872 | strcpy(p, path); | |
2873 | path_kill_slashes(p); | |
2874 | ||
2875 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2876 | } | |
e66cf1a3 LP |
2877 | |
2878 | const char *manager_get_runtime_prefix(Manager *m) { | |
f755e3b7 | 2879 | assert(m); |
e66cf1a3 LP |
2880 | |
2881 | return m->running_as == SYSTEMD_SYSTEM ? | |
2882 | "/run" : | |
2883 | getenv("XDG_RUNTIME_DIR"); | |
2884 | } | |
f755e3b7 LP |
2885 | |
2886 | ManagerState manager_state(Manager *m) { | |
2887 | Unit *u; | |
2888 | ||
2889 | assert(m); | |
2890 | ||
2891 | /* Did we ever finish booting? If not then we are still starting up */ | |
2892 | if (!dual_timestamp_is_set(&m->finish_timestamp)) | |
2893 | return MANAGER_STARTING; | |
2894 | ||
2895 | /* Is the special shutdown target queued? If so, we are in shutdown state */ | |
2896 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
2897 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
2898 | return MANAGER_STOPPING; | |
2899 | ||
2900 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
2901 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
2902 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2903 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2904 | return MANAGER_MAINTENANCE; | |
2905 | ||
2906 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
2907 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2908 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2909 | return MANAGER_MAINTENANCE; | |
2910 | ||
2911 | /* Are there any failed units? If so, we are in degraded mode */ | |
2912 | if (set_size(m->failed_units) > 0) | |
2913 | return MANAGER_DEGRADED; | |
2914 | ||
2915 | return MANAGER_RUNNING; | |
2916 | } | |
2917 | ||
2918 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
2919 | [MANAGER_STARTING] = "starting", | |
2920 | [MANAGER_RUNNING] = "running", | |
2921 | [MANAGER_DEGRADED] = "degraded", | |
2922 | [MANAGER_MAINTENANCE] = "maintenance", | |
2923 | [MANAGER_STOPPING] = "stopping", | |
2924 | }; | |
2925 | ||
2926 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |