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