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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 | ||
8c47c732 | 87 | /* Where clients shall send notification messages to */ |
29252e9e | 88 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 89 | |
c3e31c7b ZJS |
90 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
91 | ||
718db961 LP |
92 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
93 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
94 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
95 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
96 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 97 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 98 | |
03b717a3 | 99 | static int manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 ZJS |
100 | usec_t next; |
101 | ||
718db961 | 102 | assert(m); |
03b717a3 | 103 | |
718db961 | 104 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
105 | return 0; |
106 | ||
e5723c89 | 107 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
151b9b96 | 108 | return sd_event_add_monotonic(m->event, &m->jobs_in_progress_event_source, next, 0, manager_dispatch_jobs_in_progress, m); |
03b717a3 MS |
109 | } |
110 | ||
718db961 | 111 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 112 | |
03b717a3 MS |
113 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
114 | char *p = buffer; | |
115 | ||
116 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
117 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
118 | ||
119 | if (pos > 1) { | |
6282c859 MS |
120 | if (pos > 2) |
121 | p = mempset(p, ' ', pos-2); | |
5052495b | 122 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
123 | *p++ = '*'; |
124 | } | |
125 | ||
126 | if (pos > 0 && pos <= width) { | |
5052495b | 127 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
128 | *p++ = '*'; |
129 | } | |
130 | ||
5052495b | 131 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
132 | |
133 | if (pos < width) { | |
5052495b | 134 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 135 | *p++ = '*'; |
6282c859 MS |
136 | if (pos < width-1) |
137 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 138 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 139 | } |
03b717a3 MS |
140 | } |
141 | ||
cb8ccb22 | 142 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
143 | assert(m); |
144 | ||
cb8ccb22 ZJS |
145 | if (enable) { |
146 | if (m->show_status == SHOW_STATUS_AUTO) | |
147 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
148 | } else { | |
149 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
150 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
151 | } | |
152 | } | |
153 | ||
03b717a3 | 154 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 155 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
156 | Iterator i; |
157 | Job *j; | |
03b717a3 MS |
158 | unsigned counter = 0, print_nr; |
159 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
160 | unsigned cylon_pos; | |
8bb310c3 ZJS |
161 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
162 | uint64_t x; | |
03b717a3 | 163 | |
718db961 LP |
164 | assert(m); |
165 | ||
cb8ccb22 | 166 | manager_flip_auto_status(m, true); |
d450b6f2 | 167 | |
03b717a3 MS |
168 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
169 | ||
170 | HASHMAP_FOREACH(j, m->jobs, i) | |
171 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
172 | break; | |
173 | ||
e970a72e MS |
174 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
175 | * so the above loop must have succeeded in finding j. */ | |
176 | assert(counter == print_nr + 1); | |
51d122af | 177 | assert(j); |
5a82a91a | 178 | |
03b717a3 MS |
179 | cylon_pos = m->jobs_in_progress_iteration % 14; |
180 | if (cylon_pos >= 8) | |
181 | cylon_pos = 14 - cylon_pos; | |
182 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
183 | ||
8bb310c3 ZJS |
184 | m->jobs_in_progress_iteration++; |
185 | ||
03b717a3 MS |
186 | if (m->n_running_jobs > 1) |
187 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
188 | job_of_n = NULL; | |
189 | ||
8bb310c3 ZJS |
190 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
191 | if (job_get_timeout(j, &x) > 0) | |
192 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
193 | ||
6b02bce7 | 194 | manager_status_printf(m, true, cylon, |
8bb310c3 ZJS |
195 | "%sA %s job is running for %s (%s / %s)", |
196 | strempty(job_of_n), | |
197 | job_type_to_string(j->type), | |
198 | unit_description(j->unit), | |
199 | time, limit); | |
03b717a3 | 200 | |
03b717a3 MS |
201 | } |
202 | ||
31a7eb86 | 203 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
204 | int r; |
205 | ||
718db961 LP |
206 | assert(m); |
207 | ||
208 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
209 | return 0; |
210 | ||
211 | if (m->idle_pipe[2] < 0) | |
212 | return 0; | |
213 | ||
151b9b96 | 214 | 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 |
215 | if (r < 0) { |
216 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
217 | return r; | |
31a7eb86 ZJS |
218 | } |
219 | ||
31a7eb86 | 220 | return 0; |
31a7eb86 ZJS |
221 | } |
222 | ||
718db961 LP |
223 | static void manager_close_idle_pipe(Manager *m) { |
224 | assert(m); | |
31a7eb86 | 225 | |
718db961 LP |
226 | close_pipe(m->idle_pipe); |
227 | close_pipe(m->idle_pipe + 2); | |
31a7eb86 ZJS |
228 | } |
229 | ||
8742514c | 230 | static int manager_setup_time_change(Manager *m) { |
718db961 | 231 | int r; |
b92bea5d ZJS |
232 | |
233 | /* We only care for the cancellation event, hence we set the | |
234 | * timeout to the latest possible value. */ | |
235 | struct itimerspec its = { | |
236 | .it_value.tv_sec = TIME_T_MAX, | |
237 | }; | |
8742514c | 238 | |
718db961 LP |
239 | assert(m); |
240 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c LP |
241 | |
242 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
243 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
244 | ||
718db961 LP |
245 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
246 | if (m->time_change_fd < 0) { | |
8742514c LP |
247 | log_error("Failed to create timerfd: %m"); |
248 | return -errno; | |
249 | } | |
250 | ||
718db961 | 251 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 252 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
718db961 LP |
253 | close_nointr_nofail(m->time_change_fd); |
254 | m->time_change_fd = -1; | |
8742514c LP |
255 | return 0; |
256 | } | |
257 | ||
151b9b96 | 258 | 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 |
259 | if (r < 0) { |
260 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
261 | return r; | |
8742514c LP |
262 | } |
263 | ||
264 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
265 | ||
266 | return 0; | |
267 | } | |
268 | ||
80876c20 | 269 | static int enable_special_signals(Manager *m) { |
718db961 | 270 | _cleanup_close_ int fd = -1; |
80876c20 LP |
271 | |
272 | assert(m); | |
273 | ||
a41b539e | 274 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
275 | * this will fail with EPERM (older) or EINVAL (newer), so |
276 | * ignore that. */ | |
277 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
278 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
279 | ||
a41b539e LP |
280 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
281 | if (fd < 0) { | |
282 | /* Support systems without virtual console */ | |
283 | if (fd != -ENOENT) | |
284 | log_warning("Failed to open /dev/tty0: %m"); | |
285 | } else { | |
80876c20 LP |
286 | /* Enable that we get SIGWINCH on kbrequest */ |
287 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 288 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
289 | } |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
ce578209 | 294 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
295 | struct sigaction sa = { |
296 | .sa_handler = SIG_DFL, | |
297 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
298 | }; | |
718db961 LP |
299 | sigset_t mask; |
300 | int r; | |
60918275 | 301 | |
ce578209 LP |
302 | assert(m); |
303 | ||
57c0c30e | 304 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
305 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
306 | ||
ce578209 | 307 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
308 | |
309 | sigset_add_many(&mask, | |
310 | SIGCHLD, /* Child died */ | |
311 | SIGTERM, /* Reexecute daemon */ | |
312 | SIGHUP, /* Reload configuration */ | |
313 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
314 | SIGUSR2, /* systemd: dump status */ | |
315 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
316 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
317 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
318 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 319 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
320 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
321 | SIGRTMIN+3, /* systemd: start halt.target */ | |
322 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
323 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
324 | SIGRTMIN+6, /* systemd: start kexec.target */ |
325 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
326 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
327 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
328 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
329 | SIGRTMIN+20, /* systemd: enable status messages */ |
330 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
331 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
332 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 333 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 334 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
335 | SIGRTMIN+27, /* systemd: set log target to console */ |
336 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
337 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 338 | -1); |
ce578209 LP |
339 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
340 | ||
718db961 LP |
341 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
342 | if (m->signal_fd < 0) | |
ce578209 LP |
343 | return -errno; |
344 | ||
151b9b96 | 345 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
346 | if (r < 0) |
347 | return r; | |
ce578209 | 348 | |
fa28bc2d LP |
349 | /* Process signals a bit earlier than the rest of things, but |
350 | * later that notify_fd processing, so that the notify | |
351 | * processing can still figure out to which process/service a | |
352 | * message belongs, before we reap the process. */ | |
29083707 LP |
353 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
354 | if (r < 0) | |
355 | return r; | |
356 | ||
67445f4e | 357 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 358 | return enable_special_signals(m); |
e1414003 | 359 | |
ce578209 LP |
360 | return 0; |
361 | } | |
362 | ||
f069efb4 LP |
363 | static void manager_clean_environment(Manager *m) { |
364 | assert(m); | |
365 | ||
366 | /* Let's remove some environment variables that we | |
367 | * need ourselves to communicate with our clients */ | |
368 | strv_env_unset_many( | |
369 | m->environment, | |
370 | "NOTIFY_SOCKET", | |
371 | "MAINPID", | |
372 | "MANAGERPID", | |
373 | "LISTEN_PID", | |
374 | "LISTEN_FDS", | |
375 | "WATCHDOG_PID", | |
376 | "WATCHDOG_USEC", | |
377 | NULL); | |
378 | } | |
379 | ||
e21fea24 | 380 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
381 | assert(m); |
382 | ||
e21fea24 KS |
383 | if (m->running_as == SYSTEMD_SYSTEM) { |
384 | /* The system manager always starts with a clean | |
385 | * environment for its children. It does not import | |
386 | * the kernel or the parents exported variables. | |
387 | * | |
388 | * The initial passed environ is untouched to keep | |
389 | * /proc/self/environ valid; it is used for tagging | |
390 | * the init process inside containers. */ | |
43638332 ZJS |
391 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
392 | NULL); | |
e21fea24 KS |
393 | |
394 | /* Import locale variables LC_*= from configuration */ | |
395 | locale_setup(&m->environment); | |
43d03a83 | 396 | } else { |
e21fea24 KS |
397 | /* The user manager passes its own environment |
398 | * along to its children. */ | |
399 | m->environment = strv_copy(environ); | |
43d03a83 LP |
400 | } |
401 | ||
e21fea24 KS |
402 | if (!m->environment) |
403 | return -ENOMEM; | |
8b55b8c4 | 404 | |
f069efb4 | 405 | manager_clean_environment(m); |
9d5a3757 LP |
406 | strv_sort(m->environment); |
407 | ||
e21fea24 | 408 | return 0; |
71ecc858 LP |
409 | } |
410 | ||
e3dd987c | 411 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 412 | Manager *m; |
e3dd987c | 413 | int r; |
8e274523 LP |
414 | |
415 | assert(_m); | |
a5dab5ce | 416 | assert(running_as >= 0); |
67445f4e | 417 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 418 | |
915b3753 LP |
419 | m = new0(Manager, 1); |
420 | if (!m) | |
8e274523 | 421 | return -ENOMEM; |
60918275 | 422 | |
4f8d551f ZC |
423 | #ifdef ENABLE_EFI |
424 | if (detect_container(NULL) <= 0) | |
c51d84dc | 425 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
426 | #endif |
427 | ||
a5dab5ce | 428 | m->running_as = running_as; |
a16e1123 | 429 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
80876c20 | 430 | |
718db961 | 431 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 432 | |
e3dd987c | 433 | 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 | 434 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 435 | |
e21fea24 KS |
436 | r = manager_default_environment(m); |
437 | if (r < 0) | |
1137a57c LP |
438 | goto fail; |
439 | ||
718db961 LP |
440 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
441 | if (r < 0) | |
60918275 LP |
442 | goto fail; |
443 | ||
718db961 LP |
444 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
445 | if (r < 0) | |
60918275 LP |
446 | goto fail; |
447 | ||
718db961 LP |
448 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
449 | if (r < 0) | |
9152c765 LP |
450 | goto fail; |
451 | ||
718db961 LP |
452 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
453 | if (r < 0) | |
05e343b7 LP |
454 | goto fail; |
455 | ||
f755e3b7 LP |
456 | r = set_ensure_allocated(&m->failed_units, trivial_hash_func, trivial_compare_func); |
457 | if (r < 0) | |
458 | goto fail; | |
459 | ||
718db961 LP |
460 | r = sd_event_default(&m->event); |
461 | if (r < 0) | |
8742514c LP |
462 | goto fail; |
463 | ||
151b9b96 | 464 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
752b5905 LP |
465 | if (r < 0) |
466 | goto fail; | |
467 | ||
468 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
469 | if (r < 0) | |
470 | goto fail; | |
471 | ||
472 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
473 | if (r < 0) | |
474 | goto fail; | |
475 | ||
8742514c LP |
476 | r = manager_setup_signals(m); |
477 | if (r < 0) | |
9152c765 LP |
478 | goto fail; |
479 | ||
8742514c LP |
480 | r = manager_setup_cgroup(m); |
481 | if (r < 0) | |
8e274523 LP |
482 | goto fail; |
483 | ||
8742514c LP |
484 | r = manager_setup_time_change(m); |
485 | if (r < 0) | |
8c47c732 LP |
486 | goto fail; |
487 | ||
9670d583 LP |
488 | m->udev = udev_new(); |
489 | if (!m->udev) { | |
490 | r = -ENOMEM; | |
491 | goto fail; | |
492 | } | |
493 | ||
d86f9d52 LP |
494 | /* Note that we set up neither kdbus, nor the notify fd |
495 | * here. We do that after deserialization, since they might | |
496 | * have gotten serialized across the reexec. */ | |
497 | ||
72bc8d00 LP |
498 | m->taint_usr = dir_is_empty("/usr") > 0; |
499 | ||
8e274523 LP |
500 | *_m = m; |
501 | return 0; | |
60918275 LP |
502 | |
503 | fail: | |
504 | manager_free(m); | |
8e274523 | 505 | return r; |
60918275 LP |
506 | } |
507 | ||
d86f9d52 LP |
508 | static int manager_setup_notify(Manager *m) { |
509 | union { | |
510 | struct sockaddr sa; | |
511 | struct sockaddr_un un; | |
512 | } sa = { | |
513 | .sa.sa_family = AF_UNIX, | |
514 | }; | |
515 | int one = 1, r; | |
516 | ||
517 | if (m->notify_fd < 0) { | |
518 | _cleanup_close_ int fd = -1; | |
519 | ||
520 | /* First free all secondary fields */ | |
521 | free(m->notify_socket); | |
522 | m->notify_socket = NULL; | |
523 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
524 | ||
525 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
526 | if (fd < 0) { | |
527 | log_error("Failed to allocate notification socket: %m"); | |
528 | return -errno; | |
529 | } | |
530 | ||
531 | if (getpid() != 1 || detect_container(NULL) > 0) | |
9bf3b535 | 532 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%" PRIx64, random_u64()); |
d86f9d52 LP |
533 | else |
534 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
535 | sa.un.sun_path[0] = 0; | |
536 | ||
537 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
538 | if (r < 0) { | |
539 | log_error("bind() failed: %m"); | |
540 | return -errno; | |
541 | } | |
542 | ||
543 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
544 | if (r < 0) { | |
545 | log_error("SO_PASSCRED failed: %m"); | |
546 | return -errno; | |
547 | } | |
548 | ||
549 | sa.un.sun_path[0] = '@'; | |
550 | m->notify_socket = strdup(sa.un.sun_path); | |
551 | if (!m->notify_socket) | |
552 | return log_oom(); | |
553 | ||
554 | m->notify_fd = fd; | |
555 | fd = -1; | |
556 | ||
557 | log_debug("Using notification socket %s", m->notify_socket); | |
558 | } | |
559 | ||
560 | if (!m->notify_event_source) { | |
151b9b96 | 561 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
d86f9d52 LP |
562 | if (r < 0) { |
563 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
564 | return -errno; | |
565 | } | |
566 | ||
567 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
568 | * still identify to which service an exit message belongs */ | |
569 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
570 | if (r < 0) { | |
571 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
572 | return r; | |
573 | } | |
574 | } | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 580 | #ifdef ENABLE_KDBUS |
d86f9d52 | 581 | _cleanup_free_ char *p = NULL; |
5bf348d7 | 582 | #endif |
d86f9d52 | 583 | |
5bf348d7 | 584 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
585 | assert(m); |
586 | ||
d86f9d52 LP |
587 | if (m->kdbus_fd >= 0) |
588 | return 0; | |
589 | ||
f2769777 | 590 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
591 | if (m->kdbus_fd < 0) { |
592 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
593 | return m->kdbus_fd; | |
594 | } | |
595 | ||
596 | log_debug("Successfully set up kdbus on %s", p); | |
597 | ||
598 | /* Create the namespace directory here, so that the contents | |
599 | * of that directory is not visible to non-root users. This is | |
600 | * necessary to ensure that users cannot get access to busses | |
601 | * of virtualized users when no UID namespacing is used. */ | |
88c59cb3 | 602 | if (m->running_as == SYSTEMD_SYSTEM) |
486e99a3 | 603 | mkdir_p_label("/dev/kdbus/domain", 0700); |
d86f9d52 LP |
604 | #endif |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
610 | bool try_bus_connect; | |
611 | ||
612 | assert(m); | |
613 | ||
614 | try_bus_connect = | |
615 | m->kdbus_fd >= 0 || | |
616 | reexecuting || | |
617 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
618 | ||
619 | /* Try to connect to the busses, if possible. */ | |
620 | return bus_init(m, try_bus_connect); | |
621 | } | |
622 | ||
23a177ef | 623 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 624 | Unit *u; |
23a177ef LP |
625 | unsigned n = 0; |
626 | ||
627 | assert(m); | |
628 | ||
595ed347 MS |
629 | while ((u = m->cleanup_queue)) { |
630 | assert(u->in_cleanup_queue); | |
23a177ef | 631 | |
595ed347 | 632 | unit_free(u); |
23a177ef LP |
633 | n++; |
634 | } | |
635 | ||
636 | return n; | |
637 | } | |
638 | ||
eced69b3 | 639 | enum { |
35b8ca3a | 640 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
641 | GC_OFFSET_UNSURE, /* No clue */ |
642 | GC_OFFSET_GOOD, /* We still need this unit */ | |
643 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
644 | _GC_OFFSET_MAX | |
645 | }; | |
646 | ||
647 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
648 | Iterator i; |
649 | Unit *other; | |
eced69b3 | 650 | bool is_bad; |
701cc384 LP |
651 | |
652 | assert(u); | |
653 | ||
ac155bb8 MS |
654 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
655 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
656 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
657 | return; |
658 | ||
ac155bb8 | 659 | if (u->in_cleanup_queue) |
701cc384 LP |
660 | goto bad; |
661 | ||
662 | if (unit_check_gc(u)) | |
663 | goto good; | |
664 | ||
ac155bb8 | 665 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
666 | |
667 | is_bad = true; | |
668 | ||
ac155bb8 | 669 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
670 | unit_gc_sweep(other, gc_marker); |
671 | ||
ac155bb8 | 672 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 673 | goto good; |
eced69b3 | 674 | |
ac155bb8 | 675 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 676 | is_bad = false; |
701cc384 LP |
677 | } |
678 | ||
eced69b3 LP |
679 | if (is_bad) |
680 | goto bad; | |
681 | ||
682 | /* We were unable to find anything out about this entry, so | |
683 | * let's investigate it later */ | |
ac155bb8 | 684 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
685 | unit_add_to_gc_queue(u); |
686 | return; | |
687 | ||
701cc384 | 688 | bad: |
eced69b3 LP |
689 | /* We definitely know that this one is not useful anymore, so |
690 | * let's mark it for deletion */ | |
ac155bb8 | 691 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 692 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
693 | return; |
694 | ||
695 | good: | |
ac155bb8 | 696 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
697 | } |
698 | ||
699 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 700 | Unit *u; |
701cc384 | 701 | unsigned n = 0; |
eced69b3 | 702 | unsigned gc_marker; |
701cc384 LP |
703 | |
704 | assert(m); | |
705 | ||
cf1265e1 | 706 | /* log_debug("Running GC..."); */ |
701cc384 | 707 | |
eced69b3 LP |
708 | m->gc_marker += _GC_OFFSET_MAX; |
709 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 710 | m->gc_marker = 1; |
701cc384 | 711 | |
eced69b3 LP |
712 | gc_marker = m->gc_marker; |
713 | ||
595ed347 MS |
714 | while ((u = m->gc_queue)) { |
715 | assert(u->in_gc_queue); | |
701cc384 | 716 | |
595ed347 | 717 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 718 | |
71fda00f | 719 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 720 | u->in_gc_queue = false; |
701cc384 LP |
721 | |
722 | n++; | |
723 | ||
595ed347 MS |
724 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
725 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 726 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
727 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
728 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
729 | } |
730 | } | |
731 | ||
732 | m->n_in_gc_queue = 0; | |
701cc384 LP |
733 | |
734 | return n; | |
735 | } | |
736 | ||
a16e1123 | 737 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 738 | Unit *u; |
60918275 LP |
739 | |
740 | assert(m); | |
741 | ||
87f0e418 LP |
742 | while ((u = hashmap_first(m->units))) |
743 | unit_free(u); | |
964e0949 LP |
744 | |
745 | manager_dispatch_cleanup_queue(m); | |
746 | ||
747 | assert(!m->load_queue); | |
748 | assert(!m->run_queue); | |
749 | assert(!m->dbus_unit_queue); | |
750 | assert(!m->dbus_job_queue); | |
751 | assert(!m->cleanup_queue); | |
752 | assert(!m->gc_queue); | |
753 | ||
964e0949 LP |
754 | assert(hashmap_isempty(m->jobs)); |
755 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
756 | |
757 | m->n_on_console = 0; | |
758 | m->n_running_jobs = 0; | |
a16e1123 LP |
759 | } |
760 | ||
761 | void manager_free(Manager *m) { | |
762 | UnitType c; | |
c93ff2e9 | 763 | int i; |
87f0e418 | 764 | |
a16e1123 LP |
765 | assert(m); |
766 | ||
767 | manager_clear_jobs_and_units(m); | |
23a177ef | 768 | |
7824bbeb LP |
769 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
770 | if (unit_vtable[c]->shutdown) | |
771 | unit_vtable[c]->shutdown(m); | |
772 | ||
a16e1123 LP |
773 | /* If we reexecute ourselves, we keep the root cgroup |
774 | * around */ | |
c6c18be3 | 775 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 776 | |
5a1e9937 LP |
777 | manager_undo_generators(m); |
778 | ||
5e8d1c9a | 779 | bus_done(m); |
ea430986 | 780 | |
87f0e418 | 781 | hashmap_free(m->units); |
60918275 | 782 | hashmap_free(m->jobs); |
5ba6985b LP |
783 | hashmap_free(m->watch_pids1); |
784 | hashmap_free(m->watch_pids2); | |
05e343b7 | 785 | hashmap_free(m->watch_bus); |
9152c765 | 786 | |
f755e3b7 LP |
787 | set_free(m->failed_units); |
788 | ||
718db961 LP |
789 | sd_event_source_unref(m->signal_event_source); |
790 | sd_event_source_unref(m->notify_event_source); | |
791 | sd_event_source_unref(m->time_change_event_source); | |
792 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
793 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 794 | sd_event_source_unref(m->run_queue_event_source); |
718db961 LP |
795 | |
796 | if (m->signal_fd >= 0) | |
797 | close_nointr_nofail(m->signal_fd); | |
798 | if (m->notify_fd >= 0) | |
799 | close_nointr_nofail(m->notify_fd); | |
800 | if (m->time_change_fd >= 0) | |
801 | close_nointr_nofail(m->time_change_fd); | |
e3dd987c LP |
802 | if (m->kdbus_fd >= 0) |
803 | close_nointr_nofail(m->kdbus_fd); | |
718db961 LP |
804 | |
805 | manager_close_idle_pipe(m); | |
806 | ||
9670d583 | 807 | udev_unref(m->udev); |
718db961 | 808 | sd_event_unref(m->event); |
60918275 | 809 | |
c952c6ec LP |
810 | free(m->notify_socket); |
811 | ||
84e3543e | 812 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 813 | strv_free(m->environment); |
036643a2 | 814 | |
4ad49000 | 815 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 816 | set_free_free(m->unit_path_cache); |
33be102a | 817 | |
664f88a7 LP |
818 | free(m->switch_root); |
819 | free(m->switch_root_init); | |
820 | ||
517d56b1 | 821 | for (i = 0; i < _RLIMIT_MAX; i++) |
c93ff2e9 FC |
822 | free(m->rlimit[i]); |
823 | ||
a57f7e2c LP |
824 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
825 | hashmap_free(m->units_requiring_mounts_for); | |
826 | ||
60918275 LP |
827 | free(m); |
828 | } | |
829 | ||
a16e1123 LP |
830 | int manager_enumerate(Manager *m) { |
831 | int r = 0, q; | |
f50e0a01 | 832 | UnitType c; |
f50e0a01 LP |
833 | |
834 | assert(m); | |
835 | ||
a16e1123 LP |
836 | /* Let's ask every type to load all units from disk/kernel |
837 | * that it might know */ | |
f50e0a01 | 838 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
839 | if (unit_vtable[c]->enumerate) { |
840 | q = unit_vtable[c]->enumerate(m); | |
841 | if (q < 0) | |
a16e1123 | 842 | r = q; |
a57f7e2c | 843 | } |
f50e0a01 LP |
844 | |
845 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
846 | return r; |
847 | } | |
848 | ||
9588bc32 | 849 | static int manager_coldplug(Manager *m) { |
8f8f05a9 | 850 | int r = 0; |
a16e1123 LP |
851 | Iterator i; |
852 | Unit *u; | |
853 | char *k; | |
854 | ||
855 | assert(m); | |
f50e0a01 LP |
856 | |
857 | /* Then, let's set up their initial state. */ | |
858 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
8f8f05a9 | 859 | int q; |
f50e0a01 LP |
860 | |
861 | /* ignore aliases */ | |
ac155bb8 | 862 | if (u->id != k) |
f50e0a01 LP |
863 | continue; |
864 | ||
8f8f05a9 LP |
865 | q = unit_coldplug(u); |
866 | if (q < 0) | |
cca098b0 | 867 | r = q; |
f50e0a01 LP |
868 | } |
869 | ||
a16e1123 LP |
870 | return r; |
871 | } | |
872 | ||
fe51822e LP |
873 | static void manager_build_unit_path_cache(Manager *m) { |
874 | char **i; | |
7fd1b19b | 875 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
876 | int r; |
877 | ||
878 | assert(m); | |
879 | ||
880 | set_free_free(m->unit_path_cache); | |
881 | ||
874310b7 ZJS |
882 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
883 | if (!m->unit_path_cache) { | |
fe51822e LP |
884 | log_error("Failed to allocate unit path cache."); |
885 | return; | |
886 | } | |
887 | ||
888 | /* This simply builds a list of files we know exist, so that | |
889 | * we don't always have to go to disk */ | |
890 | ||
891 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
892 | struct dirent *de; | |
893 | ||
bd0af849 ZJS |
894 | d = opendir(*i); |
895 | if (!d) { | |
874310b7 ZJS |
896 | if (errno != ENOENT) |
897 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
898 | continue; |
899 | } | |
900 | ||
901 | while ((de = readdir(d))) { | |
902 | char *p; | |
903 | ||
904 | if (ignore_file(de->d_name)) | |
905 | continue; | |
906 | ||
b7def684 | 907 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 908 | if (!p) { |
fe51822e LP |
909 | r = -ENOMEM; |
910 | goto fail; | |
911 | } | |
912 | ||
ef42202a ZJS |
913 | r = set_consume(m->unit_path_cache, p); |
914 | if (r < 0) | |
fe51822e | 915 | goto fail; |
fe51822e LP |
916 | } |
917 | ||
918 | closedir(d); | |
919 | d = NULL; | |
920 | } | |
921 | ||
922 | return; | |
923 | ||
924 | fail: | |
925 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
926 | ||
927 | set_free_free(m->unit_path_cache); | |
928 | m->unit_path_cache = NULL; | |
fe51822e LP |
929 | } |
930 | ||
9588bc32 LP |
931 | |
932 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
933 | Unit *u; | |
934 | Iterator i; | |
935 | int r; | |
936 | ||
937 | assert(m); | |
938 | ||
939 | HASHMAP_FOREACH(u, m->units, i) { | |
940 | ||
941 | if (fdset_size(fds) <= 0) | |
942 | break; | |
943 | ||
944 | if (UNIT_VTABLE(u)->distribute_fds) { | |
945 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
946 | if (r < 0) | |
947 | return r; | |
948 | } | |
949 | } | |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
a16e1123 LP |
954 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
955 | int r, q; | |
956 | ||
957 | assert(m); | |
958 | ||
518d10e9 | 959 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 960 | manager_run_generators(m); |
518d10e9 | 961 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 962 | |
07719a21 LP |
963 | r = lookup_paths_init( |
964 | &m->lookup_paths, m->running_as, true, | |
965 | m->generator_unit_path, | |
966 | m->generator_unit_path_early, | |
967 | m->generator_unit_path_late); | |
968 | if (r < 0) | |
969 | return r; | |
970 | ||
fe51822e LP |
971 | manager_build_unit_path_cache(m); |
972 | ||
9f611ad8 LP |
973 | /* If we will deserialize make sure that during enumeration |
974 | * this is already known, so we increase the counter here | |
975 | * already */ | |
976 | if (serialization) | |
a7556052 | 977 | m->n_reloading ++; |
9f611ad8 | 978 | |
a16e1123 | 979 | /* First, enumerate what we can from all config files */ |
718db961 | 980 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 981 | r = manager_enumerate(m); |
718db961 | 982 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
983 | |
984 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
985 | if (serialization) { |
986 | q = manager_deserialize(m, serialization, fds); | |
987 | if (q < 0) | |
a16e1123 | 988 | r = q; |
07719a21 | 989 | } |
a16e1123 | 990 | |
01e10de3 LP |
991 | /* Any fds left? Find some unit which wants them. This is |
992 | * useful to allow container managers to pass some file | |
993 | * descriptors to us pre-initialized. This enables | |
994 | * socket-based activation of entire containers. */ | |
995 | if (fdset_size(fds) > 0) { | |
996 | q = manager_distribute_fds(m, fds); | |
997 | if (q < 0) | |
998 | r = q; | |
999 | } | |
1000 | ||
d86f9d52 LP |
1001 | /* We might have deserialized the notify fd, but if we didn't |
1002 | * then let's create the bus now */ | |
1003 | manager_setup_notify(m); | |
1004 | ||
e3dd987c LP |
1005 | /* We might have deserialized the kdbus control fd, but if we |
1006 | * didn't, then let's create the bus now. */ | |
1007 | manager_setup_kdbus(m); | |
1008 | manager_connect_bus(m, !!serialization); | |
8f8f05a9 | 1009 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); |
e3dd987c | 1010 | |
a16e1123 | 1011 | /* Third, fire things up! */ |
07719a21 LP |
1012 | q = manager_coldplug(m); |
1013 | if (q < 0) | |
a16e1123 LP |
1014 | r = q; |
1015 | ||
9f611ad8 | 1016 | if (serialization) { |
a7556052 LP |
1017 | assert(m->n_reloading > 0); |
1018 | m->n_reloading --; | |
71445ae7 LP |
1019 | |
1020 | /* Let's wait for the UnitNew/JobNew messages being | |
1021 | * sent, before we notify that the reload is | |
1022 | * finished */ | |
1023 | m->send_reloading_done = true; | |
9f611ad8 LP |
1024 | } |
1025 | ||
a16e1123 | 1026 | return r; |
f50e0a01 LP |
1027 | } |
1028 | ||
718db961 | 1029 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 1030 | int r; |
7527cb52 | 1031 | Transaction *tr; |
e5b5ae50 LP |
1032 | |
1033 | assert(m); | |
1034 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1035 | assert(unit); |
e5b5ae50 | 1036 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1037 | |
398ef8ba | 1038 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 1039 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 1040 | return -EINVAL; |
398ef8ba | 1041 | } |
c497c7a9 | 1042 | |
ac155bb8 | 1043 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 1044 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
1045 | return -EPERM; |
1046 | } | |
1047 | ||
66870f90 ZJS |
1048 | log_debug_unit(unit->id, |
1049 | "Trying to enqueue job %s/%s/%s", unit->id, | |
1050 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 1051 | |
e0209d83 MS |
1052 | job_type_collapse(&type, unit); |
1053 | ||
23ade460 | 1054 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1055 | if (!tr) |
1056 | return -ENOMEM; | |
11dd41ce | 1057 | |
7527cb52 MS |
1058 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1059 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1060 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1061 | if (r < 0) |
1062 | goto tr_abort; | |
c497c7a9 | 1063 | |
7527cb52 MS |
1064 | if (mode == JOB_ISOLATE) { |
1065 | r = transaction_add_isolate_jobs(tr, m); | |
1066 | if (r < 0) | |
1067 | goto tr_abort; | |
1068 | } | |
1069 | ||
1070 | r = transaction_activate(tr, m, mode, e); | |
1071 | if (r < 0) | |
1072 | goto tr_abort; | |
e5b5ae50 | 1073 | |
66870f90 ZJS |
1074 | log_debug_unit(unit->id, |
1075 | "Enqueued job %s/%s as %u", unit->id, | |
1076 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1077 | |
e5b5ae50 | 1078 | if (_ret) |
b94fbd30 | 1079 | *_ret = tr->anchor_job; |
60918275 | 1080 | |
7527cb52 | 1081 | transaction_free(tr); |
e5b5ae50 | 1082 | return 0; |
7527cb52 MS |
1083 | |
1084 | tr_abort: | |
1085 | transaction_abort(tr); | |
1086 | transaction_free(tr); | |
1087 | return r; | |
e5b5ae50 | 1088 | } |
60918275 | 1089 | |
718db961 | 1090 | 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 |
1091 | Unit *unit; |
1092 | int r; | |
1093 | ||
1094 | assert(m); | |
1095 | assert(type < _JOB_TYPE_MAX); | |
1096 | assert(name); | |
1097 | assert(mode < _JOB_MODE_MAX); | |
1098 | ||
c3090674 LP |
1099 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1100 | if (r < 0) | |
28247076 LP |
1101 | return r; |
1102 | ||
398ef8ba | 1103 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1104 | } |
1105 | ||
60918275 LP |
1106 | Job *manager_get_job(Manager *m, uint32_t id) { |
1107 | assert(m); | |
1108 | ||
1109 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1110 | } | |
1111 | ||
87f0e418 | 1112 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1113 | assert(m); |
1114 | assert(name); | |
1115 | ||
87f0e418 | 1116 | return hashmap_get(m->units, name); |
60918275 LP |
1117 | } |
1118 | ||
c1e1601e | 1119 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1120 | Unit *u; |
c1e1601e | 1121 | unsigned n = 0; |
60918275 LP |
1122 | |
1123 | assert(m); | |
1124 | ||
223dabab LP |
1125 | /* Make sure we are not run recursively */ |
1126 | if (m->dispatching_load_queue) | |
c1e1601e | 1127 | return 0; |
223dabab LP |
1128 | |
1129 | m->dispatching_load_queue = true; | |
1130 | ||
87f0e418 | 1131 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1132 | * tries to load its data until the queue is empty */ |
1133 | ||
595ed347 MS |
1134 | while ((u = m->load_queue)) { |
1135 | assert(u->in_load_queue); | |
034c6ed7 | 1136 | |
595ed347 | 1137 | unit_load(u); |
c1e1601e | 1138 | n++; |
60918275 LP |
1139 | } |
1140 | ||
223dabab | 1141 | m->dispatching_load_queue = false; |
c1e1601e | 1142 | return n; |
60918275 LP |
1143 | } |
1144 | ||
c2756a68 LP |
1145 | int manager_load_unit_prepare( |
1146 | Manager *m, | |
1147 | const char *name, | |
1148 | const char *path, | |
718db961 | 1149 | sd_bus_error *e, |
c2756a68 LP |
1150 | Unit **_ret) { |
1151 | ||
87f0e418 | 1152 | Unit *ret; |
7d17cfbc | 1153 | UnitType t; |
60918275 LP |
1154 | int r; |
1155 | ||
1156 | assert(m); | |
9e2f7c11 | 1157 | assert(name || path); |
60918275 | 1158 | |
db06e3b6 LP |
1159 | /* This will prepare the unit for loading, but not actually |
1160 | * load anything from disk. */ | |
0301abf4 | 1161 | |
718db961 LP |
1162 | if (path && !is_path(path)) |
1163 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1164 | |
1165 | if (!name) | |
2b6bf07d | 1166 | name = basename(path); |
9e2f7c11 | 1167 | |
7d17cfbc MS |
1168 | t = unit_name_to_type(name); |
1169 | ||
f78e6385 | 1170 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1171 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1172 | |
7d17cfbc MS |
1173 | ret = manager_get_unit(m, name); |
1174 | if (ret) { | |
034c6ed7 | 1175 | *_ret = ret; |
413d6313 | 1176 | return 1; |
034c6ed7 | 1177 | } |
60918275 | 1178 | |
7d17cfbc MS |
1179 | ret = unit_new(m, unit_vtable[t]->object_size); |
1180 | if (!ret) | |
60918275 LP |
1181 | return -ENOMEM; |
1182 | ||
7d17cfbc | 1183 | if (path) { |
ac155bb8 MS |
1184 | ret->fragment_path = strdup(path); |
1185 | if (!ret->fragment_path) { | |
0301abf4 LP |
1186 | unit_free(ret); |
1187 | return -ENOMEM; | |
1188 | } | |
7d17cfbc | 1189 | } |
0301abf4 | 1190 | |
1058cbf2 ZJS |
1191 | r = unit_add_name(ret, name); |
1192 | if (r < 0) { | |
87f0e418 | 1193 | unit_free(ret); |
1ffba6fe | 1194 | return r; |
60918275 LP |
1195 | } |
1196 | ||
87f0e418 | 1197 | unit_add_to_load_queue(ret); |
c1e1601e | 1198 | unit_add_to_dbus_queue(ret); |
949061f0 | 1199 | unit_add_to_gc_queue(ret); |
c1e1601e | 1200 | |
db06e3b6 LP |
1201 | if (_ret) |
1202 | *_ret = ret; | |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
c2756a68 LP |
1207 | int manager_load_unit( |
1208 | Manager *m, | |
1209 | const char *name, | |
1210 | const char *path, | |
718db961 | 1211 | sd_bus_error *e, |
c2756a68 LP |
1212 | Unit **_ret) { |
1213 | ||
db06e3b6 LP |
1214 | int r; |
1215 | ||
1216 | assert(m); | |
1217 | ||
1218 | /* This will load the service information files, but not actually | |
1219 | * start any services or anything. */ | |
1220 | ||
c3090674 LP |
1221 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1222 | if (r != 0) | |
db06e3b6 LP |
1223 | return r; |
1224 | ||
f50e0a01 | 1225 | manager_dispatch_load_queue(m); |
60918275 | 1226 | |
9e2f7c11 | 1227 | if (_ret) |
413d6313 | 1228 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1229 | |
60918275 LP |
1230 | return 0; |
1231 | } | |
a66d02c3 | 1232 | |
cea8e32e | 1233 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1234 | Iterator i; |
a66d02c3 LP |
1235 | Job *j; |
1236 | ||
1237 | assert(s); | |
1238 | assert(f); | |
1239 | ||
034c6ed7 | 1240 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1241 | job_dump(j, f, prefix); |
a66d02c3 LP |
1242 | } |
1243 | ||
87f0e418 | 1244 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1245 | Iterator i; |
87f0e418 | 1246 | Unit *u; |
11dd41ce | 1247 | const char *t; |
a66d02c3 LP |
1248 | |
1249 | assert(s); | |
1250 | assert(f); | |
1251 | ||
87f0e418 | 1252 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1253 | if (u->id == t) |
87f0e418 | 1254 | unit_dump(u, f, prefix); |
a66d02c3 | 1255 | } |
7fad411c LP |
1256 | |
1257 | void manager_clear_jobs(Manager *m) { | |
1258 | Job *j; | |
1259 | ||
1260 | assert(m); | |
1261 | ||
7fad411c | 1262 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1263 | /* No need to recurse. We're cancelling all jobs. */ |
1264 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1265 | } |
83c60c9f | 1266 | |
752b5905 LP |
1267 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1268 | Manager *m = userdata; | |
83c60c9f | 1269 | Job *j; |
034c6ed7 | 1270 | |
752b5905 LP |
1271 | assert(source); |
1272 | assert(m); | |
9152c765 | 1273 | |
034c6ed7 | 1274 | while ((j = m->run_queue)) { |
ac1135be | 1275 | assert(j->installed); |
034c6ed7 LP |
1276 | assert(j->in_run_queue); |
1277 | ||
1278 | job_run_and_invalidate(j); | |
9152c765 | 1279 | } |
034c6ed7 | 1280 | |
a0b64226 | 1281 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1282 | manager_watch_jobs_in_progress(m); |
1283 | ||
31a7eb86 ZJS |
1284 | if (m->n_on_console > 0) |
1285 | manager_watch_idle_pipe(m); | |
1286 | ||
752b5905 | 1287 | return 1; |
c1e1601e LP |
1288 | } |
1289 | ||
9588bc32 | 1290 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1291 | Job *j; |
595ed347 | 1292 | Unit *u; |
c1e1601e LP |
1293 | unsigned n = 0; |
1294 | ||
1295 | assert(m); | |
1296 | ||
1297 | if (m->dispatching_dbus_queue) | |
1298 | return 0; | |
1299 | ||
1300 | m->dispatching_dbus_queue = true; | |
1301 | ||
595ed347 MS |
1302 | while ((u = m->dbus_unit_queue)) { |
1303 | assert(u->in_dbus_queue); | |
c1e1601e | 1304 | |
595ed347 | 1305 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1306 | n++; |
1307 | } | |
1308 | ||
1309 | while ((j = m->dbus_job_queue)) { | |
1310 | assert(j->in_dbus_queue); | |
1311 | ||
1312 | bus_job_send_change_signal(j); | |
1313 | n++; | |
1314 | } | |
1315 | ||
1316 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1317 | |
1318 | if (m->send_reloading_done) { | |
1319 | m->send_reloading_done = false; | |
1320 | ||
718db961 | 1321 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1322 | } |
1323 | ||
718db961 LP |
1324 | if (m->queued_message) |
1325 | bus_send_queued_message(m); | |
1326 | ||
c1e1601e | 1327 | return n; |
9152c765 LP |
1328 | } |
1329 | ||
5ba6985b LP |
1330 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) { |
1331 | _cleanup_strv_free_ char **tags = NULL; | |
1332 | ||
1333 | assert(m); | |
1334 | assert(u); | |
1335 | assert(buf); | |
1336 | assert(n > 0); | |
1337 | ||
1338 | tags = strv_split(buf, "\n\r"); | |
1339 | if (!tags) { | |
1340 | log_oom(); | |
1341 | return; | |
1342 | } | |
1343 | ||
1344 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); | |
1345 | ||
1346 | if (UNIT_VTABLE(u)->notify_message) | |
1347 | UNIT_VTABLE(u)->notify_message(u, pid, tags); | |
1348 | } | |
1349 | ||
718db961 LP |
1350 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1351 | Manager *m = userdata; | |
8c47c732 LP |
1352 | ssize_t n; |
1353 | ||
1354 | assert(m); | |
718db961 LP |
1355 | assert(m->notify_fd == fd); |
1356 | ||
1357 | if (revents != EPOLLIN) { | |
1358 | log_warning("Got unexpected poll event for notify fd."); | |
1359 | return 0; | |
1360 | } | |
8c47c732 LP |
1361 | |
1362 | for (;;) { | |
1363 | char buf[4096]; | |
b92bea5d ZJS |
1364 | struct iovec iovec = { |
1365 | .iov_base = buf, | |
1366 | .iov_len = sizeof(buf)-1, | |
1367 | }; | |
5ba6985b | 1368 | bool found = false; |
b92bea5d | 1369 | |
8c47c732 LP |
1370 | union { |
1371 | struct cmsghdr cmsghdr; | |
1372 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1373 | } control = {}; |
1374 | ||
1375 | struct msghdr msghdr = { | |
1376 | .msg_iov = &iovec, | |
1377 | .msg_iovlen = 1, | |
1378 | .msg_control = &control, | |
1379 | .msg_controllen = sizeof(control), | |
1380 | }; | |
1381 | struct ucred *ucred; | |
8c47c732 | 1382 | Unit *u; |
8c47c732 | 1383 | |
718db961 | 1384 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1385 | if (n <= 0) { |
b92bea5d | 1386 | if (n == 0) |
8c47c732 LP |
1387 | return -EIO; |
1388 | ||
f6144808 | 1389 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1390 | break; |
1391 | ||
1392 | return -errno; | |
1393 | } | |
1394 | ||
1395 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1396 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1397 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1398 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1399 | log_warning("Received notify message without credentials. Ignoring."); | |
1400 | continue; | |
1401 | } | |
1402 | ||
1403 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1404 | ||
8c40acf7 LP |
1405 | assert((size_t) n < sizeof(buf)); |
1406 | buf[n] = 0; | |
8c47c732 | 1407 | |
5ba6985b LP |
1408 | u = manager_get_unit_by_pid(m, ucred->pid); |
1409 | if (u) { | |
1410 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1411 | found = true; | |
1412 | } | |
1413 | ||
1414 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); | |
1415 | if (u) { | |
1416 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1417 | found = true; | |
1418 | } | |
1419 | ||
1420 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); | |
1421 | if (u) { | |
1422 | manager_invoke_notify_message(m, u, ucred->pid, buf, n); | |
1423 | found = true; | |
1424 | } | |
8c47c732 | 1425 | |
5ba6985b LP |
1426 | if (!found) |
1427 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
8c47c732 LP |
1428 | } |
1429 | ||
1430 | return 0; | |
1431 | } | |
1432 | ||
5ba6985b LP |
1433 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1434 | assert(m); | |
1435 | assert(u); | |
1436 | assert(si); | |
1437 | ||
1438 | log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); | |
1439 | ||
1440 | unit_unwatch_pid(u, si->si_pid); | |
1441 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1442 | } | |
1443 | ||
034c6ed7 | 1444 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1445 | assert(m); |
1446 | ||
1447 | for (;;) { | |
b92bea5d | 1448 | siginfo_t si = {}; |
9152c765 | 1449 | |
4112df16 LP |
1450 | /* First we call waitd() for a PID and do not reap the |
1451 | * zombie. That way we can still access /proc/$PID for | |
1452 | * it while it is a zombie. */ | |
1453 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1454 | |
1455 | if (errno == ECHILD) | |
1456 | break; | |
1457 | ||
4112df16 LP |
1458 | if (errno == EINTR) |
1459 | continue; | |
1460 | ||
9152c765 | 1461 | return -errno; |
acbb0225 | 1462 | } |
9152c765 | 1463 | |
4112df16 | 1464 | if (si.si_pid <= 0) |
9152c765 LP |
1465 | break; |
1466 | ||
15d5d9d9 | 1467 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1468 | _cleanup_free_ char *name = NULL; |
5ba6985b | 1469 | Unit *u; |
4112df16 | 1470 | |
87d2c1ff | 1471 | get_process_comm(si.si_pid, &name); |
4112df16 | 1472 | |
5ba6985b LP |
1473 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1474 | si.si_pid, strna(name), | |
1475 | sigchld_code_to_string(si.si_code), | |
1476 | si.si_status, | |
1477 | strna(si.si_code == CLD_EXITED | |
1478 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1479 | : signal_to_string(si.si_status))); | |
1480 | ||
1481 | /* And now figure out the unit this belongs | |
1482 | * to, it might be multiple... */ | |
4ad49000 | 1483 | u = manager_get_unit_by_pid(m, si.si_pid); |
5ba6985b LP |
1484 | if (u) |
1485 | invoke_sigchld_event(m, u, &si); | |
1486 | u = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); | |
1487 | if (u) | |
1488 | invoke_sigchld_event(m, u, &si); | |
1489 | u = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); | |
1490 | if (u) | |
1491 | invoke_sigchld_event(m, u, &si); | |
1492 | } | |
8c47c732 | 1493 | |
4112df16 LP |
1494 | /* And now, we actually reap the zombie. */ |
1495 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1496 | if (errno == EINTR) | |
1497 | continue; | |
1498 | ||
1499 | return -errno; | |
1500 | } | |
9152c765 LP |
1501 | } |
1502 | ||
1503 | return 0; | |
1504 | } | |
1505 | ||
7d793605 | 1506 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1507 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1508 | int r; |
398ef8ba | 1509 | |
66870f90 | 1510 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1511 | |
bd0af849 ZJS |
1512 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1513 | if (r < 0) | |
718db961 | 1514 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1515 | |
1516 | return r; | |
28247076 LP |
1517 | } |
1518 | ||
718db961 LP |
1519 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1520 | Manager *m = userdata; | |
9152c765 LP |
1521 | ssize_t n; |
1522 | struct signalfd_siginfo sfsi; | |
1523 | bool sigchld = false; | |
1524 | ||
1525 | assert(m); | |
718db961 LP |
1526 | assert(m->signal_fd == fd); |
1527 | ||
1528 | if (revents != EPOLLIN) { | |
1529 | log_warning("Got unexpected events from signal file descriptor."); | |
1530 | return 0; | |
1531 | } | |
9152c765 LP |
1532 | |
1533 | for (;;) { | |
718db961 | 1534 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1535 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1536 | |
1537 | if (n >= 0) | |
1538 | return -EIO; | |
1539 | ||
63090775 | 1540 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1541 | break; |
9152c765 LP |
1542 | |
1543 | return -errno; | |
1544 | } | |
1545 | ||
4daf54a8 ZJS |
1546 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
1547 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1548 | ? LOG_DEBUG : LOG_INFO, | |
1549 | &sfsi); | |
1e001f52 | 1550 | |
b9cd2ec1 LP |
1551 | switch (sfsi.ssi_signo) { |
1552 | ||
4112df16 | 1553 | case SIGCHLD: |
9152c765 | 1554 | sigchld = true; |
b9cd2ec1 LP |
1555 | break; |
1556 | ||
6632c602 | 1557 | case SIGTERM: |
67445f4e | 1558 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1559 | /* This is for compatibility with the |
1560 | * original sysvinit */ | |
e11dc4a2 | 1561 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1562 | break; |
1563 | } | |
84e9af1e | 1564 | |
a1b256b0 | 1565 | /* Fall through */ |
e11dc4a2 LP |
1566 | |
1567 | case SIGINT: | |
67445f4e | 1568 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1569 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1570 | break; |
1571 | } | |
1572 | ||
a1b256b0 | 1573 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1574 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1575 | m->exit_code = MANAGER_EXIT; |
1576 | return 0; | |
1577 | } | |
1578 | ||
1579 | break; | |
84e9af1e | 1580 | |
28247076 | 1581 | case SIGWINCH: |
67445f4e | 1582 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1583 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1584 | |
28247076 LP |
1585 | /* This is a nop on non-init */ |
1586 | break; | |
84e9af1e | 1587 | |
28247076 | 1588 | case SIGPWR: |
67445f4e | 1589 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1590 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1591 | |
28247076 | 1592 | /* This is a nop on non-init */ |
84e9af1e | 1593 | break; |
6632c602 | 1594 | |
1005d14f | 1595 | case SIGUSR1: { |
57ee42ce LP |
1596 | Unit *u; |
1597 | ||
1598 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1599 | ||
1600 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1601 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1602 | bus_init(m, true); |
57ee42ce LP |
1603 | } |
1604 | ||
1605 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1606 | log_info("Loading D-Bus service..."); | |
7d793605 | 1607 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1608 | } |
1609 | ||
1610 | break; | |
1611 | } | |
1612 | ||
2149e37c | 1613 | case SIGUSR2: { |
718db961 LP |
1614 | _cleanup_free_ char *dump = NULL; |
1615 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1616 | size_t size; |
1617 | ||
718db961 LP |
1618 | f = open_memstream(&dump, &size); |
1619 | if (!f) { | |
2149e37c LP |
1620 | log_warning("Failed to allocate memory stream."); |
1621 | break; | |
1622 | } | |
1623 | ||
1624 | manager_dump_units(m, f, "\t"); | |
1625 | manager_dump_jobs(m, f, "\t"); | |
1626 | ||
1627 | if (ferror(f)) { | |
2149e37c LP |
1628 | log_warning("Failed to write status stream"); |
1629 | break; | |
1630 | } | |
1631 | ||
b2cdc666 DM |
1632 | if (fflush(f)) { |
1633 | log_warning("Failed to flush status stream"); | |
1634 | break; | |
1635 | } | |
1636 | ||
2149e37c | 1637 | log_dump(LOG_INFO, dump); |
1005d14f | 1638 | break; |
2149e37c | 1639 | } |
1005d14f | 1640 | |
a16e1123 LP |
1641 | case SIGHUP: |
1642 | m->exit_code = MANAGER_RELOAD; | |
1643 | break; | |
1644 | ||
7d793605 | 1645 | default: { |
253ee27a | 1646 | |
0003d1ab LP |
1647 | /* Starting SIGRTMIN+0 */ |
1648 | static const char * const target_table[] = { | |
7d793605 LP |
1649 | [0] = SPECIAL_DEFAULT_TARGET, |
1650 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1651 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1652 | [3] = SPECIAL_HALT_TARGET, |
1653 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1654 | [5] = SPECIAL_REBOOT_TARGET, |
1655 | [6] = SPECIAL_KEXEC_TARGET | |
1656 | }; | |
1657 | ||
1658 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1659 | static const ManagerExitCode code_table[] = { | |
1660 | [0] = MANAGER_HALT, | |
1661 | [1] = MANAGER_POWEROFF, | |
1662 | [2] = MANAGER_REBOOT, | |
1663 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1664 | }; |
1665 | ||
1666 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1667 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1668 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1669 | manager_start_target(m, target_table[idx], | |
1670 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1671 | break; |
1672 | } | |
1673 | ||
0003d1ab LP |
1674 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1675 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1676 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1677 | break; | |
1678 | } | |
1679 | ||
0658666b LP |
1680 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1681 | ||
1682 | case 20: | |
1683 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1684 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1685 | break; |
1686 | ||
1687 | case 21: | |
1688 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1689 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1690 | break; |
1691 | ||
253ee27a LP |
1692 | case 22: |
1693 | log_set_max_level(LOG_DEBUG); | |
1694 | log_notice("Setting log level to debug."); | |
1695 | break; | |
1696 | ||
1697 | case 23: | |
1698 | log_set_max_level(LOG_INFO); | |
1699 | log_notice("Setting log level to info."); | |
1700 | break; | |
1701 | ||
600b704e LP |
1702 | case 24: |
1703 | if (m->running_as == SYSTEMD_USER) { | |
1704 | m->exit_code = MANAGER_EXIT; | |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | /* This is a nop on init */ | |
1709 | break; | |
1710 | ||
4cfa2c99 LP |
1711 | case 26: |
1712 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1713 | log_notice("Setting log target to journal-or-kmsg."); | |
1714 | break; | |
1715 | ||
253ee27a LP |
1716 | case 27: |
1717 | log_set_target(LOG_TARGET_CONSOLE); | |
1718 | log_notice("Setting log target to console."); | |
1719 | break; | |
1720 | ||
1721 | case 28: | |
1722 | log_set_target(LOG_TARGET_KMSG); | |
1723 | log_notice("Setting log target to kmsg."); | |
1724 | break; | |
1725 | ||
1726 | case 29: | |
1727 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1728 | log_notice("Setting log target to syslog-or-kmsg."); | |
1729 | break; | |
1730 | ||
0658666b | 1731 | default: |
4e240ab0 | 1732 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1733 | } |
b9cd2ec1 | 1734 | } |
7d793605 | 1735 | } |
9152c765 LP |
1736 | } |
1737 | ||
1738 | if (sigchld) | |
7b77ed8c | 1739 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1740 | |
1741 | return 0; | |
1742 | } | |
1743 | ||
718db961 LP |
1744 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1745 | Manager *m = userdata; | |
1746 | Iterator i; | |
1747 | Unit *u; | |
034c6ed7 LP |
1748 | |
1749 | assert(m); | |
718db961 | 1750 | assert(m->time_change_fd == fd); |
034c6ed7 | 1751 | |
718db961 LP |
1752 | log_struct(LOG_INFO, |
1753 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1754 | "MESSAGE=Time has been changed", | |
1755 | NULL); | |
034c6ed7 | 1756 | |
718db961 LP |
1757 | /* Restart the watch */ |
1758 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1759 | |
718db961 LP |
1760 | close_nointr_nofail(m->time_change_fd); |
1761 | m->time_change_fd = -1; | |
ef734fd6 | 1762 | |
718db961 | 1763 | manager_setup_time_change(m); |
4e434314 | 1764 | |
718db961 LP |
1765 | HASHMAP_FOREACH(u, m->units, i) |
1766 | if (UNIT_VTABLE(u)->time_change) | |
1767 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1768 | |
718db961 LP |
1769 | return 0; |
1770 | } | |
ea430986 | 1771 | |
718db961 LP |
1772 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1773 | Manager *m = userdata; | |
8742514c | 1774 | |
718db961 LP |
1775 | assert(m); |
1776 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1777 | |
718db961 | 1778 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1779 | |
718db961 LP |
1780 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1781 | manager_close_idle_pipe(m); | |
03b717a3 | 1782 | |
718db961 LP |
1783 | return 0; |
1784 | } | |
31a7eb86 | 1785 | |
718db961 LP |
1786 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1787 | Manager *m = userdata; | |
fd08a840 ZJS |
1788 | int r; |
1789 | uint64_t next; | |
31a7eb86 | 1790 | |
718db961 | 1791 | assert(m); |
fd08a840 | 1792 | assert(source); |
9152c765 | 1793 | |
718db961 | 1794 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1795 | |
1796 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1797 | r = sd_event_source_set_time(source, next); | |
1798 | if (r < 0) | |
1799 | return r; | |
1800 | ||
1801 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1802 | } |
1803 | ||
1804 | int manager_loop(Manager *m) { | |
1805 | int r; | |
9152c765 | 1806 | |
fac9f8df | 1807 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1808 | |
9152c765 | 1809 | assert(m); |
f755e3b7 | 1810 | m->exit_code = MANAGER_OK; |
9152c765 | 1811 | |
fe51822e LP |
1812 | /* Release the path cache */ |
1813 | set_free_free(m->unit_path_cache); | |
1814 | m->unit_path_cache = NULL; | |
1815 | ||
b0c918b9 LP |
1816 | manager_check_finished(m); |
1817 | ||
a4312405 | 1818 | /* There might still be some zombies hanging around from |
f3669545 | 1819 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1820 | r = manager_dispatch_sigchld(m); |
1821 | if (r < 0) | |
a4312405 LP |
1822 | return r; |
1823 | ||
f755e3b7 | 1824 | while (m->exit_code == MANAGER_OK) { |
718db961 | 1825 | usec_t wait_usec; |
9152c765 | 1826 | |
67445f4e | 1827 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1828 | watchdog_ping(); |
1829 | ||
ea430986 LP |
1830 | if (!ratelimit_test(&rl)) { |
1831 | /* Yay, something is going seriously wrong, pause a little */ | |
1832 | log_warning("Looping too fast. Throttling execution a little."); | |
1833 | sleep(1); | |
e96d6be7 | 1834 | continue; |
ea430986 LP |
1835 | } |
1836 | ||
37a8e683 | 1837 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1838 | continue; |
1839 | ||
cf1265e1 | 1840 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1841 | continue; |
1842 | ||
cf1265e1 | 1843 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1844 | continue; |
034c6ed7 | 1845 | |
cf1265e1 | 1846 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1847 | continue; |
1848 | ||
c1e1601e | 1849 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1850 | continue; |
ea430986 | 1851 | |
c757a65b | 1852 | /* Sleep for half the watchdog time */ |
67445f4e | 1853 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1854 | wait_usec = m->runtime_watchdog / 2; |
1855 | if (wait_usec <= 0) | |
1856 | wait_usec = 1; | |
c757a65b | 1857 | } else |
718db961 | 1858 | wait_usec = (usec_t) -1; |
9152c765 | 1859 | |
718db961 LP |
1860 | r = sd_event_run(m->event, wait_usec); |
1861 | if (r < 0) { | |
1862 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1863 | return r; |
718db961 | 1864 | } |
a16e1123 | 1865 | } |
957ca890 | 1866 | |
a16e1123 | 1867 | return m->exit_code; |
83c60c9f | 1868 | } |
ea430986 | 1869 | |
718db961 | 1870 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1871 | _cleanup_free_ char *n = NULL; |
ea430986 | 1872 | Unit *u; |
80fbf05e | 1873 | int r; |
ea430986 LP |
1874 | |
1875 | assert(m); | |
1876 | assert(s); | |
1877 | assert(_u); | |
1878 | ||
ede3a796 LP |
1879 | r = unit_name_from_dbus_path(s, &n); |
1880 | if (r < 0) | |
1881 | return r; | |
ea430986 | 1882 | |
80fbf05e | 1883 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1884 | if (r < 0) |
1885 | return r; | |
ea430986 LP |
1886 | |
1887 | *_u = u; | |
1888 | ||
1889 | return 0; | |
1890 | } | |
86fbf370 LP |
1891 | |
1892 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1893 | const char *p; |
86fbf370 | 1894 | unsigned id; |
718db961 | 1895 | Job *j; |
86fbf370 LP |
1896 | int r; |
1897 | ||
1898 | assert(m); | |
1899 | assert(s); | |
1900 | assert(_j); | |
1901 | ||
718db961 LP |
1902 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1903 | if (!p) | |
86fbf370 LP |
1904 | return -EINVAL; |
1905 | ||
718db961 | 1906 | r = safe_atou(p, &id); |
8742514c | 1907 | if (r < 0) |
86fbf370 LP |
1908 | return r; |
1909 | ||
8742514c LP |
1910 | j = manager_get_job(m, id); |
1911 | if (!j) | |
86fbf370 LP |
1912 | return -ENOENT; |
1913 | ||
1914 | *_j = j; | |
1915 | ||
1916 | return 0; | |
1917 | } | |
dfcd764e | 1918 | |
4927fcae | 1919 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1920 | |
4927fcae | 1921 | #ifdef HAVE_AUDIT |
2ba11090 | 1922 | _cleanup_free_ char *p = NULL; |
c1165f82 | 1923 | int audit_fd; |
e537352b | 1924 | |
c1165f82 LP |
1925 | audit_fd = get_audit_fd(); |
1926 | if (audit_fd < 0) | |
e537352b LP |
1927 | return; |
1928 | ||
bbd3a7ba LP |
1929 | /* Don't generate audit events if the service was already |
1930 | * started and we're just deserializing */ | |
a7556052 | 1931 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1932 | return; |
1933 | ||
67445f4e | 1934 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1935 | return; |
1936 | ||
ac155bb8 | 1937 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1938 | return; |
1939 | ||
bd0af849 ZJS |
1940 | p = unit_name_to_prefix_and_instance(u->id); |
1941 | if (!p) { | |
66870f90 ZJS |
1942 | log_error_unit(u->id, |
1943 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1944 | return; |
1945 | } | |
1946 | ||
c1165f82 | 1947 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1948 | if (errno == EPERM) { |
1949 | /* We aren't allowed to send audit messages? | |
44785992 | 1950 | * Then let's not retry again. */ |
c1165f82 | 1951 | close_audit_fd(); |
44785992 LP |
1952 | } else |
1953 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1954 | } |
4927fcae | 1955 | #endif |
e537352b | 1956 | |
e537352b LP |
1957 | } |
1958 | ||
e983b760 | 1959 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
2ba11090 | 1960 | union sockaddr_union sa = { |
49888ca9 | 1961 | .un.sun_family = AF_UNIX, |
2ba11090 ZJS |
1962 | .un.sun_path = "\0/org/freedesktop/plymouthd", |
1963 | }; | |
1964 | ||
e983b760 | 1965 | int n = 0; |
2ba11090 ZJS |
1966 | _cleanup_free_ char *message = NULL; |
1967 | _cleanup_close_ int fd = -1; | |
e983b760 LP |
1968 | |
1969 | /* Don't generate plymouth events if the service was already | |
1970 | * started and we're just deserializing */ | |
a7556052 | 1971 | if (m->n_reloading > 0) |
e983b760 LP |
1972 | return; |
1973 | ||
67445f4e | 1974 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1975 | return; |
1976 | ||
3772995a LP |
1977 | if (detect_container(NULL) > 0) |
1978 | return; | |
1979 | ||
ac155bb8 MS |
1980 | if (u->type != UNIT_SERVICE && |
1981 | u->type != UNIT_MOUNT && | |
1982 | u->type != UNIT_SWAP) | |
e983b760 LP |
1983 | return; |
1984 | ||
1985 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1986 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1987 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1988 | if (fd < 0) { | |
e983b760 LP |
1989 | log_error("socket() failed: %m"); |
1990 | return; | |
1991 | } | |
1992 | ||
96707269 | 1993 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
e983b760 | 1994 | |
2ba11090 | 1995 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
e983b760 | 1996 | log_error("connect() failed: %m"); |
2ba11090 | 1997 | return; |
e983b760 LP |
1998 | } |
1999 | ||
ac155bb8 | 2000 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2001 | log_oom(); |
2ba11090 | 2002 | return; |
e983b760 LP |
2003 | } |
2004 | ||
2005 | errno = 0; | |
2ba11090 ZJS |
2006 | if (write(fd, message, n + 1) != n + 1) |
2007 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
e983b760 | 2008 | log_error("Failed to write Plymouth message: %m"); |
e983b760 LP |
2009 | } |
2010 | ||
05e343b7 LP |
2011 | void manager_dispatch_bus_name_owner_changed( |
2012 | Manager *m, | |
2013 | const char *name, | |
2014 | const char* old_owner, | |
2015 | const char *new_owner) { | |
2016 | ||
2017 | Unit *u; | |
2018 | ||
2019 | assert(m); | |
2020 | assert(name); | |
2021 | ||
718db961 LP |
2022 | u = hashmap_get(m->watch_bus, name); |
2023 | if (!u) | |
05e343b7 LP |
2024 | return; |
2025 | ||
2026 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2027 | } | |
2028 | ||
d8d5ab98 | 2029 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2030 | const char *path; |
df28bc08 | 2031 | int fd = -1; |
a16e1123 LP |
2032 | FILE *f; |
2033 | ||
2034 | assert(_f); | |
2035 | ||
8e33886e ZJS |
2036 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2037 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2038 | if (fd < 0) |
a16e1123 | 2039 | return -errno; |
a16e1123 | 2040 | |
a16e1123 | 2041 | log_debug("Serializing state to %s", path); |
a16e1123 | 2042 | |
01e10de3 | 2043 | f = fdopen(fd, "w+"); |
d86f9d52 LP |
2044 | if (!f) { |
2045 | close_nointr_nofail(fd); | |
a16e1123 | 2046 | return -errno; |
d86f9d52 | 2047 | } |
a16e1123 LP |
2048 | |
2049 | *_f = f; | |
2050 | ||
2051 | return 0; | |
2052 | } | |
2053 | ||
b3680f49 | 2054 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2055 | Iterator i; |
2056 | Unit *u; | |
2057 | const char *t; | |
4a9fd066 | 2058 | char **e; |
a16e1123 LP |
2059 | int r; |
2060 | ||
2061 | assert(m); | |
2062 | assert(f); | |
2063 | assert(fds); | |
2064 | ||
a7556052 | 2065 | m->n_reloading ++; |
38c52d46 | 2066 | |
01d67b43 LP |
2067 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2068 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2069 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2070 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2071 | |
915b3753 | 2072 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2073 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2074 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2075 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2076 | |
26a1efdf | 2077 | if (!in_initrd()) { |
915b3753 | 2078 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2079 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2080 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2081 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2082 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2083 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2084 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2085 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2086 | } |
47a483a1 | 2087 | |
b3680f49 HH |
2088 | if (!switching_root) { |
2089 | STRV_FOREACH(e, m->environment) { | |
2090 | _cleanup_free_ char *ce; | |
4a9fd066 | 2091 | |
b3680f49 | 2092 | ce = cescape(*e); |
e3dd987c LP |
2093 | if (!ce) |
2094 | return -ENOMEM; | |
2095 | ||
2096 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2097 | } |
4a9fd066 OS |
2098 | } |
2099 | ||
d86f9d52 LP |
2100 | if (m->notify_fd >= 0) { |
2101 | int copy; | |
2102 | ||
2103 | copy = fdset_put_dup(fds, m->notify_fd); | |
2104 | if (copy < 0) | |
2105 | return copy; | |
2106 | ||
2107 | fprintf(f, "notify-fd=%i\n", copy); | |
2108 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2109 | } | |
2110 | ||
e3dd987c LP |
2111 | if (m->kdbus_fd >= 0) { |
2112 | int copy; | |
2113 | ||
2114 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2115 | if (copy < 0) | |
2116 | return copy; | |
2117 | ||
2118 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2119 | } | |
2120 | ||
8f8f05a9 | 2121 | bus_track_serialize(m->subscribed, f); |
6fa48533 | 2122 | |
f2382a94 LP |
2123 | fputc('\n', f); |
2124 | ||
a16e1123 | 2125 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2126 | if (u->id != t) |
a16e1123 LP |
2127 | continue; |
2128 | ||
2129 | if (!unit_can_serialize(u)) | |
2130 | continue; | |
2131 | ||
2132 | /* Start marker */ | |
ac155bb8 | 2133 | fputs(u->id, f); |
a16e1123 LP |
2134 | fputc('\n', f); |
2135 | ||
6fa48533 LP |
2136 | r = unit_serialize(u, f, fds, !switching_root); |
2137 | if (r < 0) { | |
a7556052 | 2138 | m->n_reloading --; |
a16e1123 | 2139 | return r; |
38c52d46 | 2140 | } |
a16e1123 LP |
2141 | } |
2142 | ||
a7556052 LP |
2143 | assert(m->n_reloading > 0); |
2144 | m->n_reloading --; | |
38c52d46 | 2145 | |
a16e1123 LP |
2146 | if (ferror(f)) |
2147 | return -EIO; | |
2148 | ||
b23de6af LP |
2149 | r = bus_fdset_add_all(m, fds); |
2150 | if (r < 0) | |
2151 | return r; | |
2152 | ||
a16e1123 LP |
2153 | return 0; |
2154 | } | |
2155 | ||
2156 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2157 | int r = 0; | |
2158 | ||
2159 | assert(m); | |
2160 | assert(f); | |
2161 | ||
2162 | log_debug("Deserializing state..."); | |
2163 | ||
a7556052 | 2164 | m->n_reloading ++; |
82c64bf5 | 2165 | |
10f8e83c | 2166 | for (;;) { |
20c03b7b | 2167 | char line[LINE_MAX], *l; |
10f8e83c LP |
2168 | |
2169 | if (!fgets(line, sizeof(line), f)) { | |
2170 | if (feof(f)) | |
2171 | r = 0; | |
2172 | else | |
2173 | r = -errno; | |
2174 | ||
2175 | goto finish; | |
2176 | } | |
2177 | ||
2178 | char_array_0(line); | |
2179 | l = strstrip(line); | |
2180 | ||
2181 | if (l[0] == 0) | |
2182 | break; | |
2183 | ||
01d67b43 LP |
2184 | if (startswith(l, "current-job-id=")) { |
2185 | uint32_t id; | |
2186 | ||
2187 | if (safe_atou32(l+15, &id) < 0) | |
2188 | log_debug("Failed to parse current job id value %s", l+15); | |
2189 | else | |
2190 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2191 | |
33c5fae9 LP |
2192 | } else if (startswith(l, "n-installed-jobs=")) { |
2193 | uint32_t n; | |
2194 | ||
2195 | if (safe_atou32(l+17, &n) < 0) | |
2196 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2197 | else | |
2198 | m->n_installed_jobs += n; | |
718db961 | 2199 | |
33c5fae9 LP |
2200 | } else if (startswith(l, "n-failed-jobs=")) { |
2201 | uint32_t n; | |
2202 | ||
2203 | if (safe_atou32(l+14, &n) < 0) | |
2204 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2205 | else | |
2206 | m->n_failed_jobs += n; | |
718db961 | 2207 | |
01d67b43 LP |
2208 | } else if (startswith(l, "taint-usr=")) { |
2209 | int b; | |
2210 | ||
e3dd987c LP |
2211 | b = parse_boolean(l+10); |
2212 | if (b < 0) | |
01d67b43 LP |
2213 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2214 | else | |
2215 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2216 | |
915b3753 LP |
2217 | } else if (startswith(l, "firmware-timestamp=")) |
2218 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2219 | else if (startswith(l, "loader-timestamp=")) | |
2220 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2221 | else if (startswith(l, "kernel-timestamp=")) | |
2222 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2223 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2224 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2225 | else if (startswith(l, "userspace-timestamp=")) |
2226 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2227 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2228 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2229 | else if (startswith(l, "security-start-timestamp=")) |
2230 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2231 | else if (startswith(l, "security-finish-timestamp=")) | |
2232 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2233 | else if (startswith(l, "generators-start-timestamp=")) | |
2234 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2235 | else if (startswith(l, "generators-finish-timestamp=")) | |
2236 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2237 | else if (startswith(l, "units-load-start-timestamp=")) | |
2238 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2239 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2240 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2241 | else if (startswith(l, "env=")) { |
2242 | _cleanup_free_ char *uce = NULL; | |
2243 | char **e; | |
2244 | ||
2245 | uce = cunescape(l+4); | |
2246 | if (!uce) { | |
2247 | r = -ENOMEM; | |
2248 | goto finish; | |
2249 | } | |
2250 | ||
2251 | e = strv_env_set(m->environment, uce); | |
2252 | if (!e) { | |
2253 | r = -ENOMEM; | |
2254 | goto finish; | |
2255 | } | |
2256 | ||
2257 | strv_free(m->environment); | |
2258 | m->environment = e; | |
e3dd987c | 2259 | |
d86f9d52 LP |
2260 | } else if (startswith(l, "notify-fd=")) { |
2261 | int fd; | |
2262 | ||
2263 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2264 | log_debug("Failed to parse notify fd: %s", l + 10); | |
2265 | else { | |
be04cbca LP |
2266 | if (m->notify_fd >= 0) { |
2267 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
d86f9d52 | 2268 | close_nointr_nofail(m->notify_fd); |
be04cbca | 2269 | } |
d86f9d52 LP |
2270 | |
2271 | m->notify_fd = fdset_remove(fds, fd); | |
2272 | } | |
2273 | ||
2274 | } else if (startswith(l, "notify-socket=")) { | |
2275 | char *n; | |
2276 | ||
2277 | n = strdup(l+14); | |
2278 | if (!n) { | |
2279 | r = -ENOMEM; | |
2280 | goto finish; | |
2281 | } | |
2282 | ||
2283 | free(m->notify_socket); | |
2284 | m->notify_socket = n; | |
2285 | ||
e3dd987c LP |
2286 | } else if (startswith(l, "kdbus-fd=")) { |
2287 | int fd; | |
2288 | ||
8bf9fcf4 | 2289 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2290 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2291 | else { | |
2292 | if (m->kdbus_fd >= 0) | |
2293 | close_nointr_nofail(m->kdbus_fd); | |
2294 | ||
2295 | m->kdbus_fd = fdset_remove(fds, fd); | |
2296 | } | |
2297 | ||
8f8f05a9 | 2298 | } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0) |
10f8e83c LP |
2299 | log_debug("Unknown serialization item '%s'", l); |
2300 | } | |
2301 | ||
a16e1123 LP |
2302 | for (;;) { |
2303 | Unit *u; | |
2304 | char name[UNIT_NAME_MAX+2]; | |
2305 | ||
2306 | /* Start marker */ | |
2307 | if (!fgets(name, sizeof(name), f)) { | |
2308 | if (feof(f)) | |
10f8e83c LP |
2309 | r = 0; |
2310 | else | |
2311 | r = -errno; | |
a16e1123 | 2312 | |
82c64bf5 | 2313 | goto finish; |
a16e1123 LP |
2314 | } |
2315 | ||
2316 | char_array_0(name); | |
2317 | ||
bd0af849 ZJS |
2318 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2319 | if (r < 0) | |
82c64bf5 | 2320 | goto finish; |
a16e1123 | 2321 | |
01e10de3 LP |
2322 | r = unit_deserialize(u, f, fds); |
2323 | if (r < 0) | |
82c64bf5 | 2324 | goto finish; |
a16e1123 LP |
2325 | } |
2326 | ||
10f8e83c | 2327 | finish: |
145b1f79 | 2328 | if (ferror(f)) |
82c64bf5 | 2329 | r = -EIO; |
a16e1123 | 2330 | |
a7556052 LP |
2331 | assert(m->n_reloading > 0); |
2332 | m->n_reloading --; | |
82c64bf5 LP |
2333 | |
2334 | return r; | |
a16e1123 LP |
2335 | } |
2336 | ||
2337 | int manager_reload(Manager *m) { | |
2338 | int r, q; | |
51d122af ZJS |
2339 | _cleanup_fclose_ FILE *f = NULL; |
2340 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2341 | |
2342 | assert(m); | |
2343 | ||
07719a21 LP |
2344 | r = manager_open_serialization(m, &f); |
2345 | if (r < 0) | |
a16e1123 LP |
2346 | return r; |
2347 | ||
a7556052 | 2348 | m->n_reloading ++; |
718db961 | 2349 | bus_manager_send_reloading(m, true); |
38c52d46 | 2350 | |
07719a21 LP |
2351 | fds = fdset_new(); |
2352 | if (!fds) { | |
a7556052 | 2353 | m->n_reloading --; |
51d122af | 2354 | return -ENOMEM; |
a16e1123 LP |
2355 | } |
2356 | ||
b3680f49 | 2357 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2358 | if (r < 0) { |
a7556052 | 2359 | m->n_reloading --; |
51d122af | 2360 | return r; |
38c52d46 | 2361 | } |
a16e1123 LP |
2362 | |
2363 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2364 | m->n_reloading --; |
51d122af | 2365 | return -errno; |
a16e1123 LP |
2366 | } |
2367 | ||
2368 | /* From here on there is no way back. */ | |
2369 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2370 | manager_undo_generators(m); |
84e3543e | 2371 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2372 | |
07719a21 | 2373 | /* Find new unit paths */ |
5a1e9937 LP |
2374 | manager_run_generators(m); |
2375 | ||
07719a21 LP |
2376 | q = lookup_paths_init( |
2377 | &m->lookup_paths, m->running_as, true, | |
2378 | m->generator_unit_path, | |
2379 | m->generator_unit_path_early, | |
2380 | m->generator_unit_path_late); | |
2381 | if (q < 0) | |
2382 | r = q; | |
2383 | ||
5a1e9937 LP |
2384 | manager_build_unit_path_cache(m); |
2385 | ||
a16e1123 | 2386 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2387 | q = manager_enumerate(m); |
2388 | if (q < 0) | |
a16e1123 LP |
2389 | r = q; |
2390 | ||
2391 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2392 | q = manager_deserialize(m, f, fds); |
2393 | if (q < 0) | |
a16e1123 LP |
2394 | r = q; |
2395 | ||
2396 | fclose(f); | |
2397 | f = NULL; | |
2398 | ||
a2cc4a6c ZJS |
2399 | /* Re-register notify_fd as event source */ |
2400 | q = manager_setup_notify(m); | |
2401 | if (q < 0) | |
2402 | r = q; | |
2403 | ||
a16e1123 | 2404 | /* Third, fire things up! */ |
07719a21 LP |
2405 | q = manager_coldplug(m); |
2406 | if (q < 0) | |
a16e1123 LP |
2407 | r = q; |
2408 | ||
a7556052 LP |
2409 | assert(m->n_reloading > 0); |
2410 | m->n_reloading--; | |
9f611ad8 | 2411 | |
71445ae7 LP |
2412 | m->send_reloading_done = true; |
2413 | ||
a16e1123 LP |
2414 | return r; |
2415 | } | |
2416 | ||
6084e22e | 2417 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2418 | Unit *u; |
2419 | ||
2420 | assert(m); | |
2421 | ||
2422 | /* Is the initial job still around? */ | |
bacbccb7 | 2423 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2424 | return true; |
2425 | ||
2426 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2427 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2428 | if (u) | |
ac155bb8 | 2429 | return !!u->job; |
9e58ff9c LP |
2430 | |
2431 | return false; | |
2432 | } | |
2433 | ||
c17ec25e MS |
2434 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2435 | assert(m); | |
2436 | ||
2437 | return m->n_reloading != 0; | |
2438 | } | |
2439 | ||
fdf20a31 | 2440 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2441 | Unit *u; |
2442 | Iterator i; | |
2443 | ||
2444 | assert(m); | |
2445 | ||
2446 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2447 | unit_reset_failed(u); |
5632e374 LP |
2448 | } |
2449 | ||
31afa0a4 | 2450 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2451 | Unit *u; |
2452 | ||
2453 | assert(m); | |
2454 | assert(name); | |
2455 | ||
2456 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2457 | u = manager_get_unit(m, name); |
2458 | if (!u) | |
8f6df3fa LP |
2459 | return true; |
2460 | ||
31afa0a4 | 2461 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2462 | } |
2463 | ||
b0c918b9 | 2464 | void manager_check_finished(Manager *m) { |
7ceba241 | 2465 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2466 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2467 | |
2468 | assert(m); | |
2469 | ||
a0b64226 | 2470 | if (m->n_running_jobs == 0) |
718db961 | 2471 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2472 | |
828db5d8 | 2473 | if (hashmap_size(m->jobs) > 0) { |
f755e3b7 | 2474 | |
fd08a840 | 2475 | if (m->jobs_in_progress_event_source) { |
f755e3b7 LP |
2476 | sd_event_source_set_time(m->jobs_in_progress_event_source, |
2477 | now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
fd08a840 | 2478 | } |
f755e3b7 | 2479 | |
b0c918b9 | 2480 | return; |
5b176ee0 | 2481 | } |
b0c918b9 | 2482 | |
cb8ccb22 | 2483 | manager_flip_auto_status(m, false); |
d450b6f2 | 2484 | |
f2b68789 | 2485 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2486 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2487 | manager_close_idle_pipe(m); | |
f2b68789 | 2488 | |
af6da548 LP |
2489 | /* Turn off confirm spawn now */ |
2490 | m->confirm_spawn = false; | |
2491 | ||
f2b68789 | 2492 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2493 | return; |
2494 | ||
2495 | dual_timestamp_get(&m->finish_timestamp); | |
2496 | ||
67445f4e | 2497 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2498 | |
915b3753 LP |
2499 | /* Note that m->kernel_usec.monotonic is always at 0, |
2500 | * and m->firmware_usec.monotonic and | |
2501 | * m->loader_usec.monotonic should be considered | |
2502 | * negative values. */ | |
2503 | ||
7ceba241 LP |
2504 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2505 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2506 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2507 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2508 | |
e9ddabc2 | 2509 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2510 | |
915b3753 LP |
2511 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2512 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2513 | |
81270860 LP |
2514 | if (!log_on_console()) |
2515 | log_struct(LOG_INFO, | |
1ca6783f | 2516 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2517 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2518 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2519 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2520 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2fa4092c LP |
2521 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2522 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2523 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2524 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2525 | NULL); |
18fa6b27 | 2526 | } else { |
915b3753 | 2527 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2528 | initrd_usec = 0; |
2529 | ||
81270860 LP |
2530 | if (!log_on_console()) |
2531 | log_struct(LOG_INFO, | |
1ca6783f | 2532 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2533 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2534 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2535 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2fa4092c LP |
2536 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2537 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2538 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2539 | NULL); |
18fa6b27 LP |
2540 | } |
2541 | } else { | |
915b3753 LP |
2542 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2543 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2544 | |
81270860 LP |
2545 | if (!log_on_console()) |
2546 | log_struct(LOG_INFO, | |
1ca6783f | 2547 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 | 2548 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
81270860 | 2549 | "MESSAGE=Startup finished in %s.", |
2fa4092c | 2550 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2551 | NULL); |
18fa6b27 | 2552 | } |
b0c918b9 | 2553 | |
718db961 | 2554 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2555 | |
2556 | sd_notifyf(false, | |
2557 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2558 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2559 | } |
2560 | ||
07719a21 LP |
2561 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2562 | char *p; | |
2563 | int r; | |
2564 | ||
2565 | assert(m); | |
2566 | assert(generator); | |
2567 | assert(name); | |
2568 | ||
2569 | if (*generator) | |
2570 | return 0; | |
2571 | ||
67445f4e | 2572 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2573 | /* systemd --system, not running --test */ |
07719a21 LP |
2574 | |
2575 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2576 | if (!p) |
2577 | return log_oom(); | |
07719a21 | 2578 | |
fcc81ea3 KS |
2579 | r = mkdir_p_label(p, 0755); |
2580 | if (r < 0) { | |
2581 | log_error("Failed to create generator directory %s: %s", | |
2582 | p, strerror(-r)); | |
2583 | free(p); | |
2584 | return r; | |
2585 | } | |
2586 | } else if (m->running_as == SYSTEMD_USER) { | |
2587 | const char *s = NULL; | |
2588 | ||
2589 | s = getenv("XDG_RUNTIME_DIR"); | |
2590 | if (!s) | |
2591 | return -EINVAL; | |
2592 | p = strjoin(s, "/systemd/", name, NULL); | |
2593 | if (!p) | |
2594 | return log_oom(); | |
2595 | ||
d2e54fae | 2596 | r = mkdir_p_label(p, 0755); |
07719a21 | 2597 | if (r < 0) { |
7ad94c71 ZJS |
2598 | log_error("Failed to create generator directory %s: %s", |
2599 | p, strerror(-r)); | |
07719a21 LP |
2600 | free(p); |
2601 | return r; | |
2602 | } | |
2603 | } else { | |
fcc81ea3 KS |
2604 | /* systemd --system --test */ |
2605 | ||
b7def684 | 2606 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2607 | if (!p) |
2608 | return log_oom(); | |
07719a21 LP |
2609 | |
2610 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2611 | log_error("Failed to create generator directory %s: %m", |
2612 | p); | |
34bf0281 | 2613 | free(p); |
07719a21 LP |
2614 | return -errno; |
2615 | } | |
2616 | } | |
2617 | ||
2618 | *generator = p; | |
2619 | return 0; | |
2620 | } | |
2621 | ||
2622 | static void trim_generator_dir(Manager *m, char **generator) { | |
2623 | assert(m); | |
2624 | assert(generator); | |
2625 | ||
2626 | if (!*generator) | |
2627 | return; | |
2628 | ||
2629 | if (rmdir(*generator) >= 0) { | |
2630 | free(*generator); | |
2631 | *generator = NULL; | |
2632 | } | |
2633 | ||
2634 | return; | |
2635 | } | |
2636 | ||
5a1e9937 | 2637 | void manager_run_generators(Manager *m) { |
718db961 | 2638 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2639 | const char *generator_path; |
07719a21 | 2640 | const char *argv[5]; |
07719a21 | 2641 | int r; |
5a1e9937 LP |
2642 | |
2643 | assert(m); | |
2644 | ||
67445f4e | 2645 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2646 | d = opendir(generator_path); |
2647 | if (!d) { | |
5a1e9937 LP |
2648 | if (errno == ENOENT) |
2649 | return; | |
2650 | ||
7ad94c71 ZJS |
2651 | log_error("Failed to enumerate generator directory %s: %m", |
2652 | generator_path); | |
5a1e9937 LP |
2653 | return; |
2654 | } | |
2655 | ||
07719a21 LP |
2656 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2657 | if (r < 0) | |
2658 | goto finish; | |
f1d19aa4 | 2659 | |
07719a21 LP |
2660 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2661 | if (r < 0) | |
2662 | goto finish; | |
5a1e9937 | 2663 | |
07719a21 LP |
2664 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2665 | if (r < 0) | |
2666 | goto finish; | |
5a1e9937 | 2667 | |
83cc030f LP |
2668 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2669 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2670 | argv[2] = m->generator_unit_path_early; |
2671 | argv[3] = m->generator_unit_path_late; | |
2672 | argv[4] = NULL; | |
5a1e9937 | 2673 | |
718db961 | 2674 | RUN_WITH_UMASK(0022) |
aa62a893 | 2675 | execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv); |
5a1e9937 | 2676 | |
718db961 | 2677 | finish: |
07719a21 LP |
2678 | trim_generator_dir(m, &m->generator_unit_path); |
2679 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2680 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2681 | } |
2682 | ||
07719a21 | 2683 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2684 | assert(m); |
07719a21 | 2685 | assert(generator); |
5a1e9937 | 2686 | |
07719a21 | 2687 | if (!*generator) |
5a1e9937 LP |
2688 | return; |
2689 | ||
07719a21 LP |
2690 | strv_remove(m->lookup_paths.unit_path, *generator); |
2691 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2692 | |
07719a21 LP |
2693 | free(*generator); |
2694 | *generator = NULL; | |
2695 | } | |
2696 | ||
2697 | void manager_undo_generators(Manager *m) { | |
2698 | assert(m); | |
2699 | ||
2700 | remove_generator_dir(m, &m->generator_unit_path); | |
2701 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2702 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2703 | } |
2704 | ||
718db961 LP |
2705 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2706 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2707 | assert(m); |
bcd8e6d1 | 2708 | |
718db961 | 2709 | l = m->environment; |
bcd8e6d1 | 2710 | |
718db961 LP |
2711 | if (!strv_isempty(minus)) { |
2712 | a = strv_env_delete(l, 1, minus); | |
2713 | if (!a) | |
2714 | return -ENOMEM; | |
2715 | ||
2716 | l = a; | |
2717 | } | |
2718 | ||
2719 | if (!strv_isempty(plus)) { | |
2720 | b = strv_env_merge(2, l, plus); | |
2721 | if (!b) | |
2722 | return -ENOMEM; | |
bcd8e6d1 | 2723 | |
718db961 LP |
2724 | l = b; |
2725 | } | |
2726 | ||
2727 | if (m->environment != l) | |
2728 | strv_free(m->environment); | |
2729 | if (a != l) | |
2730 | strv_free(a); | |
2731 | if (b != l) | |
2732 | strv_free(b); | |
2733 | ||
f069efb4 LP |
2734 | m->environment = l; |
2735 | manager_clean_environment(m); | |
2736 | strv_sort(m->environment); | |
2737 | ||
97d0e5f8 UTL |
2738 | return 0; |
2739 | } | |
2740 | ||
c93ff2e9 FC |
2741 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2742 | int i; | |
2743 | ||
2744 | assert(m); | |
2745 | ||
517d56b1 | 2746 | for (i = 0; i < _RLIMIT_MAX; i++) { |
07719a21 LP |
2747 | if (!default_rlimit[i]) |
2748 | continue; | |
c93ff2e9 | 2749 | |
07719a21 LP |
2750 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2751 | if (!m->rlimit[i]) | |
2752 | return -ENOMEM; | |
c93ff2e9 FC |
2753 | } |
2754 | ||
2755 | return 0; | |
2756 | } | |
2757 | ||
4cfa2c99 | 2758 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2759 | Unit *u; |
2760 | ||
2761 | assert(m); | |
2762 | ||
67445f4e | 2763 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2764 | return; |
2765 | ||
731a676c LP |
2766 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2767 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2768 | log_close_journal(); |
731a676c | 2769 | return; |
f1dd0c3f LP |
2770 | } |
2771 | ||
731a676c LP |
2772 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2773 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2774 | log_close_journal(); |
731a676c LP |
2775 | return; |
2776 | } | |
f1dd0c3f | 2777 | |
731a676c LP |
2778 | /* Hmm, OK, so the socket is fully up and the service is up |
2779 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2780 | log_open(); |
2781 | } | |
2782 | ||
d450b6f2 | 2783 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2784 | assert(m); |
d450b6f2 | 2785 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2786 | |
67445f4e | 2787 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2788 | return; |
2789 | ||
d450b6f2 | 2790 | m->show_status = mode; |
27d340c7 | 2791 | |
d450b6f2 | 2792 | if (mode > 0) |
27d340c7 LP |
2793 | touch("/run/systemd/show-status"); |
2794 | else | |
2795 | unlink("/run/systemd/show-status"); | |
2796 | } | |
2797 | ||
6084e22e | 2798 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2799 | assert(m); |
2800 | ||
67445f4e | 2801 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2802 | return false; |
2803 | ||
31a7eb86 ZJS |
2804 | if (m->no_console_output) |
2805 | return false; | |
2806 | ||
d450b6f2 | 2807 | if (m->show_status > 0) |
27d340c7 LP |
2808 | return true; |
2809 | ||
2810 | /* If Plymouth is running make sure we show the status, so | |
2811 | * that there's something nice to see when people press Esc */ | |
2812 | ||
2813 | return plymouth_running(); | |
2814 | } | |
68b29a9f | 2815 | |
984a2be4 | 2816 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2817 | va_list ap; |
2818 | ||
2819 | if (!manager_get_show_status(m)) | |
2820 | return; | |
2821 | ||
03b717a3 MS |
2822 | /* XXX We should totally drop the check for ephemeral here |
2823 | * and thus effectively make 'Type=idle' pointless. */ | |
2824 | if (ephemeral && m->n_on_console > 0) | |
2825 | return; | |
2826 | ||
25cee550 MS |
2827 | if (!manager_is_booting_or_shutting_down(m)) |
2828 | return; | |
2829 | ||
2830 | va_start(ap, format); | |
984a2be4 | 2831 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2832 | va_end(ap); |
2833 | } | |
2834 | ||
a57f7e2c LP |
2835 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2836 | _cleanup_free_ char *p = NULL; | |
2837 | Unit *found; | |
2838 | ||
2839 | assert(m); | |
2840 | assert(path); | |
2841 | assert(suffix); | |
2842 | assert(_found); | |
2843 | ||
2844 | p = unit_name_from_path(path, suffix); | |
2845 | if (!p) | |
2846 | return -ENOMEM; | |
2847 | ||
2848 | found = manager_get_unit(m, p); | |
2849 | if (!found) { | |
2850 | *_found = NULL; | |
2851 | return 0; | |
2852 | } | |
2853 | ||
2854 | *_found = found; | |
2855 | return 1; | |
2856 | } | |
2857 | ||
2858 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2859 | char p[strlen(path)+1]; | |
2860 | ||
2861 | assert(m); | |
2862 | assert(path); | |
2863 | ||
2864 | strcpy(p, path); | |
2865 | path_kill_slashes(p); | |
2866 | ||
2867 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2868 | } | |
e66cf1a3 LP |
2869 | |
2870 | const char *manager_get_runtime_prefix(Manager *m) { | |
f755e3b7 | 2871 | assert(m); |
e66cf1a3 LP |
2872 | |
2873 | return m->running_as == SYSTEMD_SYSTEM ? | |
2874 | "/run" : | |
2875 | getenv("XDG_RUNTIME_DIR"); | |
2876 | } | |
f755e3b7 LP |
2877 | |
2878 | ManagerState manager_state(Manager *m) { | |
2879 | Unit *u; | |
2880 | ||
2881 | assert(m); | |
2882 | ||
2883 | /* Did we ever finish booting? If not then we are still starting up */ | |
2884 | if (!dual_timestamp_is_set(&m->finish_timestamp)) | |
2885 | return MANAGER_STARTING; | |
2886 | ||
2887 | /* Is the special shutdown target queued? If so, we are in shutdown state */ | |
2888 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
2889 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
2890 | return MANAGER_STOPPING; | |
2891 | ||
2892 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
2893 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
2894 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2895 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2896 | return MANAGER_MAINTENANCE; | |
2897 | ||
2898 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
2899 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
2900 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
2901 | return MANAGER_MAINTENANCE; | |
2902 | ||
2903 | /* Are there any failed units? If so, we are in degraded mode */ | |
2904 | if (set_size(m->failed_units) > 0) | |
2905 | return MANAGER_DEGRADED; | |
2906 | ||
2907 | return MANAGER_RUNNING; | |
2908 | } | |
2909 | ||
2910 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
2911 | [MANAGER_STARTING] = "starting", | |
2912 | [MANAGER_RUNNING] = "running", | |
2913 | [MANAGER_DEGRADED] = "degraded", | |
2914 | [MANAGER_MAINTENANCE] = "maintenance", | |
2915 | [MANAGER_STOPPING] = "stopping", | |
2916 | }; | |
2917 | ||
2918 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |