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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; |
e5723c89 | 108 | return sd_event_add_monotonic(m->event, next, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source); |
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 | ||
718db961 LP |
212 | r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source); |
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 | ||
718db961 LP |
256 | r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source); |
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 | ||
718db961 LP |
343 | r = sd_event_add_io(m->event, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m, &m->signal_event_source); |
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_pids, trivial_hash_func, trivial_compare_func); |
451 | if (r < 0) | |
8e274523 LP |
452 | goto fail; |
453 | ||
718db961 LP |
454 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
455 | if (r < 0) | |
05e343b7 LP |
456 | goto fail; |
457 | ||
718db961 LP |
458 | r = sd_event_default(&m->event); |
459 | if (r < 0) | |
8742514c LP |
460 | goto fail; |
461 | ||
752b5905 LP |
462 | r = sd_event_add_defer(m->event, manager_dispatch_run_queue, m, &m->run_queue_event_source); |
463 | if (r < 0) | |
464 | goto fail; | |
465 | ||
466 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
467 | if (r < 0) | |
468 | goto fail; | |
469 | ||
470 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
471 | if (r < 0) | |
472 | goto fail; | |
473 | ||
8742514c LP |
474 | r = manager_setup_signals(m); |
475 | if (r < 0) | |
9152c765 LP |
476 | goto fail; |
477 | ||
8742514c LP |
478 | r = manager_setup_cgroup(m); |
479 | if (r < 0) | |
8e274523 LP |
480 | goto fail; |
481 | ||
8742514c LP |
482 | r = manager_setup_time_change(m); |
483 | if (r < 0) | |
8c47c732 LP |
484 | goto fail; |
485 | ||
9670d583 LP |
486 | m->udev = udev_new(); |
487 | if (!m->udev) { | |
488 | r = -ENOMEM; | |
489 | goto fail; | |
490 | } | |
491 | ||
d86f9d52 LP |
492 | /* Note that we set up neither kdbus, nor the notify fd |
493 | * here. We do that after deserialization, since they might | |
494 | * have gotten serialized across the reexec. */ | |
495 | ||
72bc8d00 LP |
496 | m->taint_usr = dir_is_empty("/usr") > 0; |
497 | ||
8e274523 LP |
498 | *_m = m; |
499 | return 0; | |
60918275 LP |
500 | |
501 | fail: | |
502 | manager_free(m); | |
8e274523 | 503 | return r; |
60918275 LP |
504 | } |
505 | ||
d86f9d52 LP |
506 | static int manager_setup_notify(Manager *m) { |
507 | union { | |
508 | struct sockaddr sa; | |
509 | struct sockaddr_un un; | |
510 | } sa = { | |
511 | .sa.sa_family = AF_UNIX, | |
512 | }; | |
513 | int one = 1, r; | |
514 | ||
515 | if (m->notify_fd < 0) { | |
516 | _cleanup_close_ int fd = -1; | |
517 | ||
518 | /* First free all secondary fields */ | |
519 | free(m->notify_socket); | |
520 | m->notify_socket = NULL; | |
521 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
522 | ||
523 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
524 | if (fd < 0) { | |
525 | log_error("Failed to allocate notification socket: %m"); | |
526 | return -errno; | |
527 | } | |
528 | ||
529 | if (getpid() != 1 || detect_container(NULL) > 0) | |
9bf3b535 | 530 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%" PRIx64, random_u64()); |
d86f9d52 LP |
531 | else |
532 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
533 | sa.un.sun_path[0] = 0; | |
534 | ||
535 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
536 | if (r < 0) { | |
537 | log_error("bind() failed: %m"); | |
538 | return -errno; | |
539 | } | |
540 | ||
541 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
542 | if (r < 0) { | |
543 | log_error("SO_PASSCRED failed: %m"); | |
544 | return -errno; | |
545 | } | |
546 | ||
547 | sa.un.sun_path[0] = '@'; | |
548 | m->notify_socket = strdup(sa.un.sun_path); | |
549 | if (!m->notify_socket) | |
550 | return log_oom(); | |
551 | ||
552 | m->notify_fd = fd; | |
553 | fd = -1; | |
554 | ||
555 | log_debug("Using notification socket %s", m->notify_socket); | |
556 | } | |
557 | ||
558 | if (!m->notify_event_source) { | |
559 | r = sd_event_add_io(m->event, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m, &m->notify_event_source); | |
560 | if (r < 0) { | |
561 | log_error("Failed to allocate notify event source: %s", strerror(-r)); | |
562 | return -errno; | |
563 | } | |
564 | ||
565 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
566 | * still identify to which service an exit message belongs */ | |
567 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
568 | if (r < 0) { | |
569 | log_error("Failed to set priority of notify event source: %s", strerror(-r)); | |
570 | return r; | |
571 | } | |
572 | } | |
573 | ||
574 | return 0; | |
575 | } | |
576 | ||
577 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 578 | #ifdef ENABLE_KDBUS |
d86f9d52 | 579 | _cleanup_free_ char *p = NULL; |
5bf348d7 | 580 | #endif |
d86f9d52 | 581 | |
5bf348d7 | 582 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
583 | assert(m); |
584 | ||
d86f9d52 LP |
585 | if (m->kdbus_fd >= 0) |
586 | return 0; | |
587 | ||
f2769777 | 588 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p); |
d86f9d52 LP |
589 | if (m->kdbus_fd < 0) { |
590 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
591 | return m->kdbus_fd; | |
592 | } | |
593 | ||
594 | log_debug("Successfully set up kdbus on %s", p); | |
595 | ||
596 | /* Create the namespace directory here, so that the contents | |
597 | * of that directory is not visible to non-root users. This is | |
598 | * necessary to ensure that users cannot get access to busses | |
599 | * of virtualized users when no UID namespacing is used. */ | |
88c59cb3 | 600 | if (m->running_as == SYSTEMD_SYSTEM) |
486e99a3 | 601 | mkdir_p_label("/dev/kdbus/domain", 0700); |
d86f9d52 LP |
602 | #endif |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
608 | bool try_bus_connect; | |
609 | ||
610 | assert(m); | |
611 | ||
612 | try_bus_connect = | |
613 | m->kdbus_fd >= 0 || | |
614 | reexecuting || | |
615 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
616 | ||
617 | /* Try to connect to the busses, if possible. */ | |
618 | return bus_init(m, try_bus_connect); | |
619 | } | |
620 | ||
23a177ef | 621 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 622 | Unit *u; |
23a177ef LP |
623 | unsigned n = 0; |
624 | ||
625 | assert(m); | |
626 | ||
595ed347 MS |
627 | while ((u = m->cleanup_queue)) { |
628 | assert(u->in_cleanup_queue); | |
23a177ef | 629 | |
595ed347 | 630 | unit_free(u); |
23a177ef LP |
631 | n++; |
632 | } | |
633 | ||
634 | return n; | |
635 | } | |
636 | ||
eced69b3 | 637 | enum { |
35b8ca3a | 638 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
639 | GC_OFFSET_UNSURE, /* No clue */ |
640 | GC_OFFSET_GOOD, /* We still need this unit */ | |
641 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
642 | _GC_OFFSET_MAX | |
643 | }; | |
644 | ||
645 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
646 | Iterator i; |
647 | Unit *other; | |
eced69b3 | 648 | bool is_bad; |
701cc384 LP |
649 | |
650 | assert(u); | |
651 | ||
ac155bb8 MS |
652 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
653 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
654 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
655 | return; |
656 | ||
ac155bb8 | 657 | if (u->in_cleanup_queue) |
701cc384 LP |
658 | goto bad; |
659 | ||
660 | if (unit_check_gc(u)) | |
661 | goto good; | |
662 | ||
ac155bb8 | 663 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
664 | |
665 | is_bad = true; | |
666 | ||
ac155bb8 | 667 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
668 | unit_gc_sweep(other, gc_marker); |
669 | ||
ac155bb8 | 670 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 671 | goto good; |
eced69b3 | 672 | |
ac155bb8 | 673 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 674 | is_bad = false; |
701cc384 LP |
675 | } |
676 | ||
eced69b3 LP |
677 | if (is_bad) |
678 | goto bad; | |
679 | ||
680 | /* We were unable to find anything out about this entry, so | |
681 | * let's investigate it later */ | |
ac155bb8 | 682 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
683 | unit_add_to_gc_queue(u); |
684 | return; | |
685 | ||
701cc384 | 686 | bad: |
eced69b3 LP |
687 | /* We definitely know that this one is not useful anymore, so |
688 | * let's mark it for deletion */ | |
ac155bb8 | 689 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 690 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
691 | return; |
692 | ||
693 | good: | |
ac155bb8 | 694 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
695 | } |
696 | ||
697 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 698 | Unit *u; |
701cc384 | 699 | unsigned n = 0; |
eced69b3 | 700 | unsigned gc_marker; |
701cc384 LP |
701 | |
702 | assert(m); | |
703 | ||
cf1265e1 | 704 | /* log_debug("Running GC..."); */ |
701cc384 | 705 | |
eced69b3 LP |
706 | m->gc_marker += _GC_OFFSET_MAX; |
707 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 708 | m->gc_marker = 1; |
701cc384 | 709 | |
eced69b3 LP |
710 | gc_marker = m->gc_marker; |
711 | ||
595ed347 MS |
712 | while ((u = m->gc_queue)) { |
713 | assert(u->in_gc_queue); | |
701cc384 | 714 | |
595ed347 | 715 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 716 | |
71fda00f | 717 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 718 | u->in_gc_queue = false; |
701cc384 LP |
719 | |
720 | n++; | |
721 | ||
595ed347 MS |
722 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
723 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 724 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
725 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
726 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
727 | } |
728 | } | |
729 | ||
730 | m->n_in_gc_queue = 0; | |
701cc384 LP |
731 | |
732 | return n; | |
733 | } | |
734 | ||
a16e1123 | 735 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 736 | Unit *u; |
60918275 LP |
737 | |
738 | assert(m); | |
739 | ||
87f0e418 LP |
740 | while ((u = hashmap_first(m->units))) |
741 | unit_free(u); | |
964e0949 LP |
742 | |
743 | manager_dispatch_cleanup_queue(m); | |
744 | ||
745 | assert(!m->load_queue); | |
746 | assert(!m->run_queue); | |
747 | assert(!m->dbus_unit_queue); | |
748 | assert(!m->dbus_job_queue); | |
749 | assert(!m->cleanup_queue); | |
750 | assert(!m->gc_queue); | |
751 | ||
964e0949 LP |
752 | assert(hashmap_isempty(m->jobs)); |
753 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
754 | |
755 | m->n_on_console = 0; | |
756 | m->n_running_jobs = 0; | |
a16e1123 LP |
757 | } |
758 | ||
759 | void manager_free(Manager *m) { | |
760 | UnitType c; | |
c93ff2e9 | 761 | int i; |
87f0e418 | 762 | |
a16e1123 LP |
763 | assert(m); |
764 | ||
765 | manager_clear_jobs_and_units(m); | |
23a177ef | 766 | |
7824bbeb LP |
767 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
768 | if (unit_vtable[c]->shutdown) | |
769 | unit_vtable[c]->shutdown(m); | |
770 | ||
a16e1123 LP |
771 | /* If we reexecute ourselves, we keep the root cgroup |
772 | * around */ | |
c6c18be3 | 773 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 774 | |
5a1e9937 LP |
775 | manager_undo_generators(m); |
776 | ||
5e8d1c9a | 777 | bus_done(m); |
ea430986 | 778 | |
87f0e418 | 779 | hashmap_free(m->units); |
60918275 | 780 | hashmap_free(m->jobs); |
9152c765 | 781 | hashmap_free(m->watch_pids); |
05e343b7 | 782 | hashmap_free(m->watch_bus); |
9152c765 | 783 | |
718db961 LP |
784 | sd_event_source_unref(m->signal_event_source); |
785 | sd_event_source_unref(m->notify_event_source); | |
786 | sd_event_source_unref(m->time_change_event_source); | |
787 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
788 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 789 | sd_event_source_unref(m->run_queue_event_source); |
718db961 LP |
790 | |
791 | if (m->signal_fd >= 0) | |
792 | close_nointr_nofail(m->signal_fd); | |
793 | if (m->notify_fd >= 0) | |
794 | close_nointr_nofail(m->notify_fd); | |
795 | if (m->time_change_fd >= 0) | |
796 | close_nointr_nofail(m->time_change_fd); | |
e3dd987c LP |
797 | if (m->kdbus_fd >= 0) |
798 | close_nointr_nofail(m->kdbus_fd); | |
718db961 LP |
799 | |
800 | manager_close_idle_pipe(m); | |
801 | ||
9670d583 | 802 | udev_unref(m->udev); |
718db961 | 803 | sd_event_unref(m->event); |
60918275 | 804 | |
c952c6ec LP |
805 | free(m->notify_socket); |
806 | ||
84e3543e | 807 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 808 | strv_free(m->environment); |
036643a2 | 809 | |
4ad49000 | 810 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 811 | set_free_free(m->unit_path_cache); |
33be102a | 812 | |
664f88a7 LP |
813 | free(m->switch_root); |
814 | free(m->switch_root_init); | |
815 | ||
c93ff2e9 FC |
816 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
817 | free(m->rlimit[i]); | |
818 | ||
a57f7e2c LP |
819 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
820 | hashmap_free(m->units_requiring_mounts_for); | |
821 | ||
60918275 LP |
822 | free(m); |
823 | } | |
824 | ||
a16e1123 LP |
825 | int manager_enumerate(Manager *m) { |
826 | int r = 0, q; | |
f50e0a01 | 827 | UnitType c; |
f50e0a01 LP |
828 | |
829 | assert(m); | |
830 | ||
a16e1123 LP |
831 | /* Let's ask every type to load all units from disk/kernel |
832 | * that it might know */ | |
f50e0a01 | 833 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
834 | if (unit_vtable[c]->enumerate) { |
835 | q = unit_vtable[c]->enumerate(m); | |
836 | if (q < 0) | |
a16e1123 | 837 | r = q; |
a57f7e2c | 838 | } |
f50e0a01 LP |
839 | |
840 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
841 | return r; |
842 | } | |
843 | ||
9588bc32 | 844 | static int manager_coldplug(Manager *m) { |
a16e1123 LP |
845 | int r = 0, q; |
846 | Iterator i; | |
847 | Unit *u; | |
848 | char *k; | |
849 | ||
850 | assert(m); | |
f50e0a01 LP |
851 | |
852 | /* Then, let's set up their initial state. */ | |
853 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
854 | ||
855 | /* ignore aliases */ | |
ac155bb8 | 856 | if (u->id != k) |
f50e0a01 LP |
857 | continue; |
858 | ||
cca098b0 LP |
859 | if ((q = unit_coldplug(u)) < 0) |
860 | r = q; | |
f50e0a01 LP |
861 | } |
862 | ||
a16e1123 LP |
863 | return r; |
864 | } | |
865 | ||
fe51822e LP |
866 | static void manager_build_unit_path_cache(Manager *m) { |
867 | char **i; | |
7fd1b19b | 868 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
869 | int r; |
870 | ||
871 | assert(m); | |
872 | ||
873 | set_free_free(m->unit_path_cache); | |
874 | ||
874310b7 ZJS |
875 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
876 | if (!m->unit_path_cache) { | |
fe51822e LP |
877 | log_error("Failed to allocate unit path cache."); |
878 | return; | |
879 | } | |
880 | ||
881 | /* This simply builds a list of files we know exist, so that | |
882 | * we don't always have to go to disk */ | |
883 | ||
884 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
885 | struct dirent *de; | |
886 | ||
bd0af849 ZJS |
887 | d = opendir(*i); |
888 | if (!d) { | |
874310b7 ZJS |
889 | if (errno != ENOENT) |
890 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
891 | continue; |
892 | } | |
893 | ||
894 | while ((de = readdir(d))) { | |
895 | char *p; | |
896 | ||
897 | if (ignore_file(de->d_name)) | |
898 | continue; | |
899 | ||
b7def684 | 900 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 901 | if (!p) { |
fe51822e LP |
902 | r = -ENOMEM; |
903 | goto fail; | |
904 | } | |
905 | ||
ef42202a ZJS |
906 | r = set_consume(m->unit_path_cache, p); |
907 | if (r < 0) | |
fe51822e | 908 | goto fail; |
fe51822e LP |
909 | } |
910 | ||
911 | closedir(d); | |
912 | d = NULL; | |
913 | } | |
914 | ||
915 | return; | |
916 | ||
917 | fail: | |
918 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
919 | ||
920 | set_free_free(m->unit_path_cache); | |
921 | m->unit_path_cache = NULL; | |
fe51822e LP |
922 | } |
923 | ||
9588bc32 LP |
924 | |
925 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
926 | Unit *u; | |
927 | Iterator i; | |
928 | int r; | |
929 | ||
930 | assert(m); | |
931 | ||
932 | HASHMAP_FOREACH(u, m->units, i) { | |
933 | ||
934 | if (fdset_size(fds) <= 0) | |
935 | break; | |
936 | ||
937 | if (UNIT_VTABLE(u)->distribute_fds) { | |
938 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
939 | if (r < 0) | |
940 | return r; | |
941 | } | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
a16e1123 LP |
947 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
948 | int r, q; | |
949 | ||
950 | assert(m); | |
951 | ||
518d10e9 | 952 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 953 | manager_run_generators(m); |
518d10e9 | 954 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 955 | |
07719a21 LP |
956 | r = lookup_paths_init( |
957 | &m->lookup_paths, m->running_as, true, | |
958 | m->generator_unit_path, | |
959 | m->generator_unit_path_early, | |
960 | m->generator_unit_path_late); | |
961 | if (r < 0) | |
962 | return r; | |
963 | ||
fe51822e LP |
964 | manager_build_unit_path_cache(m); |
965 | ||
9f611ad8 LP |
966 | /* If we will deserialize make sure that during enumeration |
967 | * this is already known, so we increase the counter here | |
968 | * already */ | |
969 | if (serialization) | |
a7556052 | 970 | m->n_reloading ++; |
9f611ad8 | 971 | |
a16e1123 | 972 | /* First, enumerate what we can from all config files */ |
718db961 | 973 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 974 | r = manager_enumerate(m); |
718db961 | 975 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
976 | |
977 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
978 | if (serialization) { |
979 | q = manager_deserialize(m, serialization, fds); | |
980 | if (q < 0) | |
a16e1123 | 981 | r = q; |
07719a21 | 982 | } |
a16e1123 | 983 | |
01e10de3 LP |
984 | /* Any fds left? Find some unit which wants them. This is |
985 | * useful to allow container managers to pass some file | |
986 | * descriptors to us pre-initialized. This enables | |
987 | * socket-based activation of entire containers. */ | |
988 | if (fdset_size(fds) > 0) { | |
989 | q = manager_distribute_fds(m, fds); | |
990 | if (q < 0) | |
991 | r = q; | |
992 | } | |
993 | ||
d86f9d52 LP |
994 | /* We might have deserialized the notify fd, but if we didn't |
995 | * then let's create the bus now */ | |
996 | manager_setup_notify(m); | |
997 | ||
e3dd987c LP |
998 | /* We might have deserialized the kdbus control fd, but if we |
999 | * didn't, then let's create the bus now. */ | |
1000 | manager_setup_kdbus(m); | |
1001 | manager_connect_bus(m, !!serialization); | |
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 | ||
718db961 LP |
1322 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1323 | Manager *m = userdata; | |
8c47c732 LP |
1324 | ssize_t n; |
1325 | ||
1326 | assert(m); | |
718db961 LP |
1327 | assert(m->notify_fd == fd); |
1328 | ||
1329 | if (revents != EPOLLIN) { | |
1330 | log_warning("Got unexpected poll event for notify fd."); | |
1331 | return 0; | |
1332 | } | |
8c47c732 LP |
1333 | |
1334 | for (;;) { | |
1335 | char buf[4096]; | |
b92bea5d ZJS |
1336 | struct iovec iovec = { |
1337 | .iov_base = buf, | |
1338 | .iov_len = sizeof(buf)-1, | |
1339 | }; | |
1340 | ||
8c47c732 LP |
1341 | union { |
1342 | struct cmsghdr cmsghdr; | |
1343 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1344 | } control = {}; |
1345 | ||
1346 | struct msghdr msghdr = { | |
1347 | .msg_iov = &iovec, | |
1348 | .msg_iovlen = 1, | |
1349 | .msg_control = &control, | |
1350 | .msg_controllen = sizeof(control), | |
1351 | }; | |
1352 | struct ucred *ucred; | |
8c47c732 | 1353 | Unit *u; |
7fd1b19b | 1354 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1355 | |
718db961 | 1356 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1357 | if (n <= 0) { |
b92bea5d | 1358 | if (n == 0) |
8c47c732 LP |
1359 | return -EIO; |
1360 | ||
f6144808 | 1361 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1362 | break; |
1363 | ||
1364 | return -errno; | |
1365 | } | |
1366 | ||
1367 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1368 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1369 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1370 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1371 | log_warning("Received notify message without credentials. Ignoring."); | |
1372 | continue; | |
1373 | } | |
1374 | ||
1375 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1376 | ||
bd0af849 ZJS |
1377 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1378 | if (!u) { | |
4ad49000 | 1379 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1380 | if (!u) { |
ccd06097 | 1381 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); |
8c47c732 LP |
1382 | continue; |
1383 | } | |
bd0af849 | 1384 | } |
8c47c732 | 1385 | |
8c40acf7 LP |
1386 | assert((size_t) n < sizeof(buf)); |
1387 | buf[n] = 0; | |
bd0af849 ZJS |
1388 | tags = strv_split(buf, "\n\r"); |
1389 | if (!tags) | |
1390 | return log_oom(); | |
8c47c732 | 1391 | |
66870f90 | 1392 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1393 | |
1394 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1395 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1396 | } |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
034c6ed7 | 1401 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1402 | assert(m); |
1403 | ||
1404 | for (;;) { | |
b92bea5d | 1405 | siginfo_t si = {}; |
87f0e418 | 1406 | Unit *u; |
9152c765 | 1407 | |
4112df16 LP |
1408 | /* First we call waitd() for a PID and do not reap the |
1409 | * zombie. That way we can still access /proc/$PID for | |
1410 | * it while it is a zombie. */ | |
1411 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1412 | |
1413 | if (errno == ECHILD) | |
1414 | break; | |
1415 | ||
4112df16 LP |
1416 | if (errno == EINTR) |
1417 | continue; | |
1418 | ||
9152c765 | 1419 | return -errno; |
acbb0225 | 1420 | } |
9152c765 | 1421 | |
4112df16 | 1422 | if (si.si_pid <= 0) |
9152c765 LP |
1423 | break; |
1424 | ||
15d5d9d9 | 1425 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1426 | _cleanup_free_ char *name = NULL; |
4112df16 | 1427 | |
87d2c1ff | 1428 | get_process_comm(si.si_pid, &name); |
ccd06097 | 1429 | log_debug("Got SIGCHLD for process "PID_FMT" (%s)", si.si_pid, strna(name)); |
4112df16 LP |
1430 | } |
1431 | ||
8c47c732 | 1432 | /* And now figure out the unit this belongs to */ |
bd0af849 ZJS |
1433 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1434 | if (!u) | |
4ad49000 | 1435 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1436 | |
4112df16 LP |
1437 | /* And now, we actually reap the zombie. */ |
1438 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1439 | if (errno == EINTR) | |
1440 | continue; | |
1441 | ||
1442 | return -errno; | |
1443 | } | |
1444 | ||
034c6ed7 LP |
1445 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1446 | continue; | |
1447 | ||
bb00e604 LP |
1448 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1449 | (long unsigned) si.si_pid, | |
4112df16 LP |
1450 | sigchld_code_to_string(si.si_code), |
1451 | si.si_status, | |
d06dacd0 LP |
1452 | strna(si.si_code == CLD_EXITED |
1453 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1454 | : signal_to_string(si.si_status))); | |
acbb0225 | 1455 | |
8c47c732 | 1456 | if (!u) |
9152c765 LP |
1457 | continue; |
1458 | ||
66870f90 ZJS |
1459 | log_debug_unit(u->id, |
1460 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1461 | |
a911bb9a | 1462 | unit_unwatch_pid(u, si.si_pid); |
87f0e418 | 1463 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1464 | } |
1465 | ||
1466 | return 0; | |
1467 | } | |
1468 | ||
7d793605 | 1469 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1470 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1471 | int r; |
398ef8ba | 1472 | |
66870f90 | 1473 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1474 | |
bd0af849 ZJS |
1475 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1476 | if (r < 0) | |
718db961 | 1477 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1478 | |
1479 | return r; | |
28247076 LP |
1480 | } |
1481 | ||
718db961 LP |
1482 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1483 | Manager *m = userdata; | |
9152c765 LP |
1484 | ssize_t n; |
1485 | struct signalfd_siginfo sfsi; | |
1486 | bool sigchld = false; | |
1487 | ||
1488 | assert(m); | |
718db961 LP |
1489 | assert(m->signal_fd == fd); |
1490 | ||
1491 | if (revents != EPOLLIN) { | |
1492 | log_warning("Got unexpected events from signal file descriptor."); | |
1493 | return 0; | |
1494 | } | |
9152c765 LP |
1495 | |
1496 | for (;;) { | |
718db961 | 1497 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1498 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1499 | |
1500 | if (n >= 0) | |
1501 | return -EIO; | |
1502 | ||
63090775 | 1503 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1504 | break; |
9152c765 LP |
1505 | |
1506 | return -errno; | |
1507 | } | |
1508 | ||
67370238 | 1509 | if (sfsi.ssi_pid > 0) { |
a9244623 | 1510 | _cleanup_free_ char *p = NULL; |
67370238 | 1511 | |
87d2c1ff | 1512 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1513 | |
a9244623 ZJS |
1514 | log_full(sfsi.ssi_signo == SIGCHLD || |
1515 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1516 | ? LOG_DEBUG : LOG_INFO, | |
ccd06097 | 1517 | "Received SIG%s from PID "PID_FMT" (%s).", |
a9244623 | 1518 | signal_to_string(sfsi.ssi_signo), |
ccd06097 | 1519 | sfsi.ssi_pid, strna(p)); |
67370238 | 1520 | } else |
a9244623 ZJS |
1521 | log_full(sfsi.ssi_signo == SIGCHLD || |
1522 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1523 | ? LOG_DEBUG : LOG_INFO, | |
1524 | "Received SIG%s.", | |
1525 | signal_to_string(sfsi.ssi_signo)); | |
1e001f52 | 1526 | |
b9cd2ec1 LP |
1527 | switch (sfsi.ssi_signo) { |
1528 | ||
4112df16 | 1529 | case SIGCHLD: |
9152c765 | 1530 | sigchld = true; |
b9cd2ec1 LP |
1531 | break; |
1532 | ||
6632c602 | 1533 | case SIGTERM: |
67445f4e | 1534 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1535 | /* This is for compatibility with the |
1536 | * original sysvinit */ | |
e11dc4a2 | 1537 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1538 | break; |
1539 | } | |
84e9af1e | 1540 | |
a1b256b0 | 1541 | /* Fall through */ |
e11dc4a2 LP |
1542 | |
1543 | case SIGINT: | |
67445f4e | 1544 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1545 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1546 | break; |
1547 | } | |
1548 | ||
a1b256b0 | 1549 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1550 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1551 | m->exit_code = MANAGER_EXIT; |
1552 | return 0; | |
1553 | } | |
1554 | ||
1555 | break; | |
84e9af1e | 1556 | |
28247076 | 1557 | case SIGWINCH: |
67445f4e | 1558 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1559 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1560 | |
28247076 LP |
1561 | /* This is a nop on non-init */ |
1562 | break; | |
84e9af1e | 1563 | |
28247076 | 1564 | case SIGPWR: |
67445f4e | 1565 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1566 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1567 | |
28247076 | 1568 | /* This is a nop on non-init */ |
84e9af1e | 1569 | break; |
6632c602 | 1570 | |
1005d14f | 1571 | case SIGUSR1: { |
57ee42ce LP |
1572 | Unit *u; |
1573 | ||
1574 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1575 | ||
1576 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1577 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1578 | bus_init(m, true); |
57ee42ce LP |
1579 | } |
1580 | ||
1581 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1582 | log_info("Loading D-Bus service..."); | |
7d793605 | 1583 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1584 | } |
1585 | ||
1586 | break; | |
1587 | } | |
1588 | ||
2149e37c | 1589 | case SIGUSR2: { |
718db961 LP |
1590 | _cleanup_free_ char *dump = NULL; |
1591 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1592 | size_t size; |
1593 | ||
718db961 LP |
1594 | f = open_memstream(&dump, &size); |
1595 | if (!f) { | |
2149e37c LP |
1596 | log_warning("Failed to allocate memory stream."); |
1597 | break; | |
1598 | } | |
1599 | ||
1600 | manager_dump_units(m, f, "\t"); | |
1601 | manager_dump_jobs(m, f, "\t"); | |
1602 | ||
1603 | if (ferror(f)) { | |
2149e37c LP |
1604 | log_warning("Failed to write status stream"); |
1605 | break; | |
1606 | } | |
1607 | ||
2149e37c | 1608 | log_dump(LOG_INFO, dump); |
1005d14f | 1609 | break; |
2149e37c | 1610 | } |
1005d14f | 1611 | |
a16e1123 LP |
1612 | case SIGHUP: |
1613 | m->exit_code = MANAGER_RELOAD; | |
1614 | break; | |
1615 | ||
7d793605 | 1616 | default: { |
253ee27a | 1617 | |
0003d1ab LP |
1618 | /* Starting SIGRTMIN+0 */ |
1619 | static const char * const target_table[] = { | |
7d793605 LP |
1620 | [0] = SPECIAL_DEFAULT_TARGET, |
1621 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1622 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1623 | [3] = SPECIAL_HALT_TARGET, |
1624 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1625 | [5] = SPECIAL_REBOOT_TARGET, |
1626 | [6] = SPECIAL_KEXEC_TARGET | |
1627 | }; | |
1628 | ||
1629 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1630 | static const ManagerExitCode code_table[] = { | |
1631 | [0] = MANAGER_HALT, | |
1632 | [1] = MANAGER_POWEROFF, | |
1633 | [2] = MANAGER_REBOOT, | |
1634 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1635 | }; |
1636 | ||
1637 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1638 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1639 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1640 | manager_start_target(m, target_table[idx], | |
1641 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1642 | break; |
1643 | } | |
1644 | ||
0003d1ab LP |
1645 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1646 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1647 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1648 | break; | |
1649 | } | |
1650 | ||
0658666b LP |
1651 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1652 | ||
1653 | case 20: | |
1654 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1655 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1656 | break; |
1657 | ||
1658 | case 21: | |
1659 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1660 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1661 | break; |
1662 | ||
253ee27a LP |
1663 | case 22: |
1664 | log_set_max_level(LOG_DEBUG); | |
1665 | log_notice("Setting log level to debug."); | |
1666 | break; | |
1667 | ||
1668 | case 23: | |
1669 | log_set_max_level(LOG_INFO); | |
1670 | log_notice("Setting log level to info."); | |
1671 | break; | |
1672 | ||
600b704e LP |
1673 | case 24: |
1674 | if (m->running_as == SYSTEMD_USER) { | |
1675 | m->exit_code = MANAGER_EXIT; | |
1676 | return 0; | |
1677 | } | |
1678 | ||
1679 | /* This is a nop on init */ | |
1680 | break; | |
1681 | ||
4cfa2c99 LP |
1682 | case 26: |
1683 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1684 | log_notice("Setting log target to journal-or-kmsg."); | |
1685 | break; | |
1686 | ||
253ee27a LP |
1687 | case 27: |
1688 | log_set_target(LOG_TARGET_CONSOLE); | |
1689 | log_notice("Setting log target to console."); | |
1690 | break; | |
1691 | ||
1692 | case 28: | |
1693 | log_set_target(LOG_TARGET_KMSG); | |
1694 | log_notice("Setting log target to kmsg."); | |
1695 | break; | |
1696 | ||
1697 | case 29: | |
1698 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1699 | log_notice("Setting log target to syslog-or-kmsg."); | |
1700 | break; | |
1701 | ||
0658666b | 1702 | default: |
4e240ab0 | 1703 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1704 | } |
b9cd2ec1 | 1705 | } |
7d793605 | 1706 | } |
9152c765 LP |
1707 | } |
1708 | ||
1709 | if (sigchld) | |
7b77ed8c | 1710 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1711 | |
1712 | return 0; | |
1713 | } | |
1714 | ||
718db961 LP |
1715 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1716 | Manager *m = userdata; | |
1717 | Iterator i; | |
1718 | Unit *u; | |
034c6ed7 LP |
1719 | |
1720 | assert(m); | |
718db961 | 1721 | assert(m->time_change_fd == fd); |
034c6ed7 | 1722 | |
718db961 LP |
1723 | log_struct(LOG_INFO, |
1724 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1725 | "MESSAGE=Time has been changed", | |
1726 | NULL); | |
034c6ed7 | 1727 | |
718db961 LP |
1728 | /* Restart the watch */ |
1729 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1730 | |
718db961 LP |
1731 | close_nointr_nofail(m->time_change_fd); |
1732 | m->time_change_fd = -1; | |
ef734fd6 | 1733 | |
718db961 | 1734 | manager_setup_time_change(m); |
4e434314 | 1735 | |
718db961 LP |
1736 | HASHMAP_FOREACH(u, m->units, i) |
1737 | if (UNIT_VTABLE(u)->time_change) | |
1738 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1739 | |
718db961 LP |
1740 | return 0; |
1741 | } | |
ea430986 | 1742 | |
718db961 LP |
1743 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1744 | Manager *m = userdata; | |
8742514c | 1745 | |
718db961 LP |
1746 | assert(m); |
1747 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1748 | |
718db961 | 1749 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1750 | |
718db961 LP |
1751 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1752 | manager_close_idle_pipe(m); | |
03b717a3 | 1753 | |
718db961 LP |
1754 | return 0; |
1755 | } | |
31a7eb86 | 1756 | |
718db961 LP |
1757 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1758 | Manager *m = userdata; | |
fd08a840 ZJS |
1759 | int r; |
1760 | uint64_t next; | |
31a7eb86 | 1761 | |
718db961 | 1762 | assert(m); |
fd08a840 | 1763 | assert(source); |
9152c765 | 1764 | |
718db961 | 1765 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1766 | |
1767 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1768 | r = sd_event_source_set_time(source, next); | |
1769 | if (r < 0) | |
1770 | return r; | |
1771 | ||
1772 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1773 | } |
1774 | ||
1775 | int manager_loop(Manager *m) { | |
1776 | int r; | |
9152c765 | 1777 | |
fac9f8df | 1778 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1779 | |
9152c765 | 1780 | assert(m); |
a16e1123 | 1781 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1782 | |
fe51822e LP |
1783 | /* Release the path cache */ |
1784 | set_free_free(m->unit_path_cache); | |
1785 | m->unit_path_cache = NULL; | |
1786 | ||
b0c918b9 LP |
1787 | manager_check_finished(m); |
1788 | ||
a4312405 | 1789 | /* There might still be some zombies hanging around from |
f3669545 | 1790 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1791 | r = manager_dispatch_sigchld(m); |
1792 | if (r < 0) | |
a4312405 LP |
1793 | return r; |
1794 | ||
a16e1123 | 1795 | while (m->exit_code == MANAGER_RUNNING) { |
718db961 | 1796 | usec_t wait_usec; |
9152c765 | 1797 | |
67445f4e | 1798 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1799 | watchdog_ping(); |
1800 | ||
ea430986 LP |
1801 | if (!ratelimit_test(&rl)) { |
1802 | /* Yay, something is going seriously wrong, pause a little */ | |
1803 | log_warning("Looping too fast. Throttling execution a little."); | |
1804 | sleep(1); | |
e96d6be7 | 1805 | continue; |
ea430986 LP |
1806 | } |
1807 | ||
37a8e683 | 1808 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1809 | continue; |
1810 | ||
cf1265e1 | 1811 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1812 | continue; |
1813 | ||
cf1265e1 | 1814 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1815 | continue; |
034c6ed7 | 1816 | |
cf1265e1 | 1817 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1818 | continue; |
1819 | ||
c1e1601e | 1820 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1821 | continue; |
ea430986 | 1822 | |
c757a65b | 1823 | /* Sleep for half the watchdog time */ |
67445f4e | 1824 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1825 | wait_usec = m->runtime_watchdog / 2; |
1826 | if (wait_usec <= 0) | |
1827 | wait_usec = 1; | |
c757a65b | 1828 | } else |
718db961 | 1829 | wait_usec = (usec_t) -1; |
9152c765 | 1830 | |
718db961 LP |
1831 | r = sd_event_run(m->event, wait_usec); |
1832 | if (r < 0) { | |
1833 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1834 | return r; |
718db961 | 1835 | } |
a16e1123 | 1836 | } |
957ca890 | 1837 | |
a16e1123 | 1838 | return m->exit_code; |
83c60c9f | 1839 | } |
ea430986 | 1840 | |
718db961 | 1841 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1842 | _cleanup_free_ char *n = NULL; |
ea430986 | 1843 | Unit *u; |
80fbf05e | 1844 | int r; |
ea430986 LP |
1845 | |
1846 | assert(m); | |
1847 | assert(s); | |
1848 | assert(_u); | |
1849 | ||
ede3a796 LP |
1850 | r = unit_name_from_dbus_path(s, &n); |
1851 | if (r < 0) | |
1852 | return r; | |
ea430986 | 1853 | |
80fbf05e | 1854 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1855 | if (r < 0) |
1856 | return r; | |
ea430986 LP |
1857 | |
1858 | *_u = u; | |
1859 | ||
1860 | return 0; | |
1861 | } | |
86fbf370 LP |
1862 | |
1863 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1864 | const char *p; |
86fbf370 | 1865 | unsigned id; |
718db961 | 1866 | Job *j; |
86fbf370 LP |
1867 | int r; |
1868 | ||
1869 | assert(m); | |
1870 | assert(s); | |
1871 | assert(_j); | |
1872 | ||
718db961 LP |
1873 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1874 | if (!p) | |
86fbf370 LP |
1875 | return -EINVAL; |
1876 | ||
718db961 | 1877 | r = safe_atou(p, &id); |
8742514c | 1878 | if (r < 0) |
86fbf370 LP |
1879 | return r; |
1880 | ||
8742514c LP |
1881 | j = manager_get_job(m, id); |
1882 | if (!j) | |
86fbf370 LP |
1883 | return -ENOENT; |
1884 | ||
1885 | *_j = j; | |
1886 | ||
1887 | return 0; | |
1888 | } | |
dfcd764e | 1889 | |
4927fcae | 1890 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1891 | |
4927fcae LP |
1892 | #ifdef HAVE_AUDIT |
1893 | char *p; | |
c1165f82 | 1894 | int audit_fd; |
e537352b | 1895 | |
c1165f82 LP |
1896 | audit_fd = get_audit_fd(); |
1897 | if (audit_fd < 0) | |
e537352b LP |
1898 | return; |
1899 | ||
bbd3a7ba LP |
1900 | /* Don't generate audit events if the service was already |
1901 | * started and we're just deserializing */ | |
a7556052 | 1902 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1903 | return; |
1904 | ||
67445f4e | 1905 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1906 | return; |
1907 | ||
ac155bb8 | 1908 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1909 | return; |
1910 | ||
bd0af849 ZJS |
1911 | p = unit_name_to_prefix_and_instance(u->id); |
1912 | if (!p) { | |
66870f90 ZJS |
1913 | log_error_unit(u->id, |
1914 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1915 | return; |
1916 | } | |
1917 | ||
c1165f82 | 1918 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1919 | if (errno == EPERM) { |
1920 | /* We aren't allowed to send audit messages? | |
44785992 | 1921 | * Then let's not retry again. */ |
c1165f82 | 1922 | close_audit_fd(); |
44785992 LP |
1923 | } else |
1924 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1925 | } |
e537352b | 1926 | |
4927fcae LP |
1927 | free(p); |
1928 | #endif | |
e537352b | 1929 | |
e537352b LP |
1930 | } |
1931 | ||
e983b760 LP |
1932 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1933 | int fd = -1; | |
1934 | union sockaddr_union sa; | |
1935 | int n = 0; | |
1936 | char *message = NULL; | |
e983b760 LP |
1937 | |
1938 | /* Don't generate plymouth events if the service was already | |
1939 | * started and we're just deserializing */ | |
a7556052 | 1940 | if (m->n_reloading > 0) |
e983b760 LP |
1941 | return; |
1942 | ||
67445f4e | 1943 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1944 | return; |
1945 | ||
3772995a LP |
1946 | if (detect_container(NULL) > 0) |
1947 | return; | |
1948 | ||
ac155bb8 MS |
1949 | if (u->type != UNIT_SERVICE && |
1950 | u->type != UNIT_MOUNT && | |
1951 | u->type != UNIT_SWAP) | |
e983b760 LP |
1952 | return; |
1953 | ||
1954 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1955 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1956 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1957 | if (fd < 0) { | |
e983b760 LP |
1958 | log_error("socket() failed: %m"); |
1959 | return; | |
1960 | } | |
1961 | ||
1962 | zero(sa); | |
1963 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1964 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1965 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1966 | |
1967 | if (errno != EPIPE && | |
1968 | errno != EAGAIN && | |
1969 | errno != ENOENT && | |
1970 | errno != ECONNREFUSED && | |
1971 | errno != ECONNRESET && | |
1972 | errno != ECONNABORTED) | |
1973 | log_error("connect() failed: %m"); | |
1974 | ||
1975 | goto finish; | |
1976 | } | |
1977 | ||
ac155bb8 | 1978 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1979 | log_oom(); |
e983b760 LP |
1980 | goto finish; |
1981 | } | |
1982 | ||
1983 | errno = 0; | |
bd40a2d8 | 1984 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1985 | |
1986 | if (errno != EPIPE && | |
1987 | errno != EAGAIN && | |
1988 | errno != ENOENT && | |
1989 | errno != ECONNREFUSED && | |
1990 | errno != ECONNRESET && | |
1991 | errno != ECONNABORTED) | |
1992 | log_error("Failed to write Plymouth message: %m"); | |
1993 | ||
1994 | goto finish; | |
1995 | } | |
1996 | ||
1997 | finish: | |
1998 | if (fd >= 0) | |
1999 | close_nointr_nofail(fd); | |
2000 | ||
2001 | free(message); | |
2002 | } | |
2003 | ||
05e343b7 LP |
2004 | void manager_dispatch_bus_name_owner_changed( |
2005 | Manager *m, | |
2006 | const char *name, | |
2007 | const char* old_owner, | |
2008 | const char *new_owner) { | |
2009 | ||
2010 | Unit *u; | |
2011 | ||
2012 | assert(m); | |
2013 | assert(name); | |
2014 | ||
718db961 LP |
2015 | u = hashmap_get(m->watch_bus, name); |
2016 | if (!u) | |
05e343b7 LP |
2017 | return; |
2018 | ||
2019 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2020 | } | |
2021 | ||
d8d5ab98 | 2022 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2023 | const char *path; |
df28bc08 | 2024 | int fd = -1; |
a16e1123 LP |
2025 | FILE *f; |
2026 | ||
2027 | assert(_f); | |
2028 | ||
8e33886e ZJS |
2029 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2030 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2031 | if (fd < 0) |
a16e1123 | 2032 | return -errno; |
a16e1123 | 2033 | |
a16e1123 | 2034 | log_debug("Serializing state to %s", path); |
a16e1123 | 2035 | |
01e10de3 | 2036 | f = fdopen(fd, "w+"); |
d86f9d52 LP |
2037 | if (!f) { |
2038 | close_nointr_nofail(fd); | |
a16e1123 | 2039 | return -errno; |
d86f9d52 | 2040 | } |
a16e1123 LP |
2041 | |
2042 | *_f = f; | |
2043 | ||
2044 | return 0; | |
2045 | } | |
2046 | ||
b3680f49 | 2047 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2048 | Iterator i; |
2049 | Unit *u; | |
2050 | const char *t; | |
4a9fd066 | 2051 | char **e; |
a16e1123 LP |
2052 | int r; |
2053 | ||
2054 | assert(m); | |
2055 | assert(f); | |
2056 | assert(fds); | |
2057 | ||
a7556052 | 2058 | m->n_reloading ++; |
38c52d46 | 2059 | |
01d67b43 LP |
2060 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2061 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2062 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2063 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2064 | |
915b3753 | 2065 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2066 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2067 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2068 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2069 | |
26a1efdf | 2070 | if (!in_initrd()) { |
915b3753 | 2071 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2072 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2073 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2074 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2075 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2076 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2077 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2078 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2079 | } |
47a483a1 | 2080 | |
b3680f49 HH |
2081 | if (!switching_root) { |
2082 | STRV_FOREACH(e, m->environment) { | |
2083 | _cleanup_free_ char *ce; | |
4a9fd066 | 2084 | |
b3680f49 | 2085 | ce = cescape(*e); |
e3dd987c LP |
2086 | if (!ce) |
2087 | return -ENOMEM; | |
2088 | ||
2089 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2090 | } |
4a9fd066 OS |
2091 | } |
2092 | ||
d86f9d52 LP |
2093 | if (m->notify_fd >= 0) { |
2094 | int copy; | |
2095 | ||
2096 | copy = fdset_put_dup(fds, m->notify_fd); | |
2097 | if (copy < 0) | |
2098 | return copy; | |
2099 | ||
2100 | fprintf(f, "notify-fd=%i\n", copy); | |
2101 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2102 | } | |
2103 | ||
e3dd987c LP |
2104 | if (m->kdbus_fd >= 0) { |
2105 | int copy; | |
2106 | ||
2107 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2108 | if (copy < 0) | |
2109 | return copy; | |
2110 | ||
2111 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2112 | } | |
2113 | ||
6fa48533 LP |
2114 | bus_serialize(m, f); |
2115 | ||
f2382a94 LP |
2116 | fputc('\n', f); |
2117 | ||
a16e1123 | 2118 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2119 | if (u->id != t) |
a16e1123 LP |
2120 | continue; |
2121 | ||
2122 | if (!unit_can_serialize(u)) | |
2123 | continue; | |
2124 | ||
2125 | /* Start marker */ | |
ac155bb8 | 2126 | fputs(u->id, f); |
a16e1123 LP |
2127 | fputc('\n', f); |
2128 | ||
6fa48533 LP |
2129 | r = unit_serialize(u, f, fds, !switching_root); |
2130 | if (r < 0) { | |
a7556052 | 2131 | m->n_reloading --; |
a16e1123 | 2132 | return r; |
38c52d46 | 2133 | } |
a16e1123 LP |
2134 | } |
2135 | ||
a7556052 LP |
2136 | assert(m->n_reloading > 0); |
2137 | m->n_reloading --; | |
38c52d46 | 2138 | |
a16e1123 LP |
2139 | if (ferror(f)) |
2140 | return -EIO; | |
2141 | ||
b23de6af LP |
2142 | r = bus_fdset_add_all(m, fds); |
2143 | if (r < 0) | |
2144 | return r; | |
2145 | ||
a16e1123 LP |
2146 | return 0; |
2147 | } | |
2148 | ||
2149 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2150 | int r = 0; | |
2151 | ||
2152 | assert(m); | |
2153 | assert(f); | |
2154 | ||
2155 | log_debug("Deserializing state..."); | |
2156 | ||
a7556052 | 2157 | m->n_reloading ++; |
82c64bf5 | 2158 | |
10f8e83c | 2159 | for (;;) { |
20c03b7b | 2160 | char line[LINE_MAX], *l; |
10f8e83c LP |
2161 | |
2162 | if (!fgets(line, sizeof(line), f)) { | |
2163 | if (feof(f)) | |
2164 | r = 0; | |
2165 | else | |
2166 | r = -errno; | |
2167 | ||
2168 | goto finish; | |
2169 | } | |
2170 | ||
2171 | char_array_0(line); | |
2172 | l = strstrip(line); | |
2173 | ||
2174 | if (l[0] == 0) | |
2175 | break; | |
2176 | ||
01d67b43 LP |
2177 | if (startswith(l, "current-job-id=")) { |
2178 | uint32_t id; | |
2179 | ||
2180 | if (safe_atou32(l+15, &id) < 0) | |
2181 | log_debug("Failed to parse current job id value %s", l+15); | |
2182 | else | |
2183 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2184 | |
33c5fae9 LP |
2185 | } else if (startswith(l, "n-installed-jobs=")) { |
2186 | uint32_t n; | |
2187 | ||
2188 | if (safe_atou32(l+17, &n) < 0) | |
2189 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2190 | else | |
2191 | m->n_installed_jobs += n; | |
718db961 | 2192 | |
33c5fae9 LP |
2193 | } else if (startswith(l, "n-failed-jobs=")) { |
2194 | uint32_t n; | |
2195 | ||
2196 | if (safe_atou32(l+14, &n) < 0) | |
2197 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2198 | else | |
2199 | m->n_failed_jobs += n; | |
718db961 | 2200 | |
01d67b43 LP |
2201 | } else if (startswith(l, "taint-usr=")) { |
2202 | int b; | |
2203 | ||
e3dd987c LP |
2204 | b = parse_boolean(l+10); |
2205 | if (b < 0) | |
01d67b43 LP |
2206 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2207 | else | |
2208 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2209 | |
915b3753 LP |
2210 | } else if (startswith(l, "firmware-timestamp=")) |
2211 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2212 | else if (startswith(l, "loader-timestamp=")) | |
2213 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2214 | else if (startswith(l, "kernel-timestamp=")) | |
2215 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2216 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2217 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2218 | else if (startswith(l, "userspace-timestamp=")) |
2219 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2220 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2221 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2222 | else if (startswith(l, "security-start-timestamp=")) |
2223 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2224 | else if (startswith(l, "security-finish-timestamp=")) | |
2225 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2226 | else if (startswith(l, "generators-start-timestamp=")) | |
2227 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2228 | else if (startswith(l, "generators-finish-timestamp=")) | |
2229 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2230 | else if (startswith(l, "units-load-start-timestamp=")) | |
2231 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2232 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2233 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2234 | else if (startswith(l, "env=")) { |
2235 | _cleanup_free_ char *uce = NULL; | |
2236 | char **e; | |
2237 | ||
2238 | uce = cunescape(l+4); | |
2239 | if (!uce) { | |
2240 | r = -ENOMEM; | |
2241 | goto finish; | |
2242 | } | |
2243 | ||
2244 | e = strv_env_set(m->environment, uce); | |
2245 | if (!e) { | |
2246 | r = -ENOMEM; | |
2247 | goto finish; | |
2248 | } | |
2249 | ||
2250 | strv_free(m->environment); | |
2251 | m->environment = e; | |
e3dd987c | 2252 | |
d86f9d52 LP |
2253 | } else if (startswith(l, "notify-fd=")) { |
2254 | int fd; | |
2255 | ||
2256 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2257 | log_debug("Failed to parse notify fd: %s", l + 10); | |
2258 | else { | |
be04cbca LP |
2259 | if (m->notify_fd >= 0) { |
2260 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
d86f9d52 | 2261 | close_nointr_nofail(m->notify_fd); |
be04cbca | 2262 | } |
d86f9d52 LP |
2263 | |
2264 | m->notify_fd = fdset_remove(fds, fd); | |
2265 | } | |
2266 | ||
2267 | } else if (startswith(l, "notify-socket=")) { | |
2268 | char *n; | |
2269 | ||
2270 | n = strdup(l+14); | |
2271 | if (!n) { | |
2272 | r = -ENOMEM; | |
2273 | goto finish; | |
2274 | } | |
2275 | ||
2276 | free(m->notify_socket); | |
2277 | m->notify_socket = n; | |
2278 | ||
e3dd987c LP |
2279 | } else if (startswith(l, "kdbus-fd=")) { |
2280 | int fd; | |
2281 | ||
8bf9fcf4 | 2282 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2283 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2284 | else { | |
2285 | if (m->kdbus_fd >= 0) | |
2286 | close_nointr_nofail(m->kdbus_fd); | |
2287 | ||
2288 | m->kdbus_fd = fdset_remove(fds, fd); | |
2289 | } | |
2290 | ||
6fa48533 | 2291 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2292 | log_debug("Unknown serialization item '%s'", l); |
2293 | } | |
2294 | ||
a16e1123 LP |
2295 | for (;;) { |
2296 | Unit *u; | |
2297 | char name[UNIT_NAME_MAX+2]; | |
2298 | ||
2299 | /* Start marker */ | |
2300 | if (!fgets(name, sizeof(name), f)) { | |
2301 | if (feof(f)) | |
10f8e83c LP |
2302 | r = 0; |
2303 | else | |
2304 | r = -errno; | |
a16e1123 | 2305 | |
82c64bf5 | 2306 | goto finish; |
a16e1123 LP |
2307 | } |
2308 | ||
2309 | char_array_0(name); | |
2310 | ||
bd0af849 ZJS |
2311 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2312 | if (r < 0) | |
82c64bf5 | 2313 | goto finish; |
a16e1123 | 2314 | |
01e10de3 LP |
2315 | r = unit_deserialize(u, f, fds); |
2316 | if (r < 0) | |
82c64bf5 | 2317 | goto finish; |
a16e1123 LP |
2318 | } |
2319 | ||
10f8e83c | 2320 | finish: |
145b1f79 | 2321 | if (ferror(f)) |
82c64bf5 | 2322 | r = -EIO; |
a16e1123 | 2323 | |
a7556052 LP |
2324 | assert(m->n_reloading > 0); |
2325 | m->n_reloading --; | |
82c64bf5 LP |
2326 | |
2327 | return r; | |
a16e1123 LP |
2328 | } |
2329 | ||
2330 | int manager_reload(Manager *m) { | |
2331 | int r, q; | |
51d122af ZJS |
2332 | _cleanup_fclose_ FILE *f = NULL; |
2333 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2334 | |
2335 | assert(m); | |
2336 | ||
07719a21 LP |
2337 | r = manager_open_serialization(m, &f); |
2338 | if (r < 0) | |
a16e1123 LP |
2339 | return r; |
2340 | ||
a7556052 | 2341 | m->n_reloading ++; |
718db961 | 2342 | bus_manager_send_reloading(m, true); |
38c52d46 | 2343 | |
07719a21 LP |
2344 | fds = fdset_new(); |
2345 | if (!fds) { | |
a7556052 | 2346 | m->n_reloading --; |
51d122af | 2347 | return -ENOMEM; |
a16e1123 LP |
2348 | } |
2349 | ||
b3680f49 | 2350 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2351 | if (r < 0) { |
a7556052 | 2352 | m->n_reloading --; |
51d122af | 2353 | return r; |
38c52d46 | 2354 | } |
a16e1123 LP |
2355 | |
2356 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2357 | m->n_reloading --; |
51d122af | 2358 | return -errno; |
a16e1123 LP |
2359 | } |
2360 | ||
2361 | /* From here on there is no way back. */ | |
2362 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2363 | manager_undo_generators(m); |
84e3543e | 2364 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2365 | |
07719a21 | 2366 | /* Find new unit paths */ |
5a1e9937 LP |
2367 | manager_run_generators(m); |
2368 | ||
07719a21 LP |
2369 | q = lookup_paths_init( |
2370 | &m->lookup_paths, m->running_as, true, | |
2371 | m->generator_unit_path, | |
2372 | m->generator_unit_path_early, | |
2373 | m->generator_unit_path_late); | |
2374 | if (q < 0) | |
2375 | r = q; | |
2376 | ||
5a1e9937 LP |
2377 | manager_build_unit_path_cache(m); |
2378 | ||
a16e1123 | 2379 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2380 | q = manager_enumerate(m); |
2381 | if (q < 0) | |
a16e1123 LP |
2382 | r = q; |
2383 | ||
2384 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2385 | q = manager_deserialize(m, f, fds); |
2386 | if (q < 0) | |
a16e1123 LP |
2387 | r = q; |
2388 | ||
2389 | fclose(f); | |
2390 | f = NULL; | |
2391 | ||
a2cc4a6c ZJS |
2392 | /* Re-register notify_fd as event source */ |
2393 | q = manager_setup_notify(m); | |
2394 | if (q < 0) | |
2395 | r = q; | |
2396 | ||
a16e1123 | 2397 | /* Third, fire things up! */ |
07719a21 LP |
2398 | q = manager_coldplug(m); |
2399 | if (q < 0) | |
a16e1123 LP |
2400 | r = q; |
2401 | ||
a7556052 LP |
2402 | assert(m->n_reloading > 0); |
2403 | m->n_reloading--; | |
9f611ad8 | 2404 | |
71445ae7 LP |
2405 | m->send_reloading_done = true; |
2406 | ||
a16e1123 LP |
2407 | return r; |
2408 | } | |
2409 | ||
6084e22e | 2410 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2411 | Unit *u; |
2412 | ||
2413 | assert(m); | |
2414 | ||
2415 | /* Is the initial job still around? */ | |
bacbccb7 | 2416 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2417 | return true; |
2418 | ||
2419 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2420 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2421 | if (u) | |
ac155bb8 | 2422 | return !!u->job; |
9e58ff9c LP |
2423 | |
2424 | return false; | |
2425 | } | |
2426 | ||
c17ec25e MS |
2427 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2428 | assert(m); | |
2429 | ||
2430 | return m->n_reloading != 0; | |
2431 | } | |
2432 | ||
fdf20a31 | 2433 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2434 | Unit *u; |
2435 | Iterator i; | |
2436 | ||
2437 | assert(m); | |
2438 | ||
2439 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2440 | unit_reset_failed(u); |
5632e374 LP |
2441 | } |
2442 | ||
31afa0a4 | 2443 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2444 | Unit *u; |
2445 | ||
2446 | assert(m); | |
2447 | assert(name); | |
2448 | ||
2449 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2450 | u = manager_get_unit(m, name); |
2451 | if (!u) | |
8f6df3fa LP |
2452 | return true; |
2453 | ||
31afa0a4 | 2454 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2455 | } |
2456 | ||
b0c918b9 | 2457 | void manager_check_finished(Manager *m) { |
7ceba241 | 2458 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2459 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2460 | |
2461 | assert(m); | |
2462 | ||
a0b64226 | 2463 | if (m->n_running_jobs == 0) |
718db961 | 2464 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2465 | |
828db5d8 | 2466 | if (hashmap_size(m->jobs) > 0) { |
fd08a840 | 2467 | if (m->jobs_in_progress_event_source) { |
e5723c89 | 2468 | uint64_t next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
fd08a840 ZJS |
2469 | sd_event_source_set_time(m->jobs_in_progress_event_source, next); |
2470 | } | |
b0c918b9 | 2471 | return; |
5b176ee0 | 2472 | } |
b0c918b9 | 2473 | |
cb8ccb22 | 2474 | manager_flip_auto_status(m, false); |
d450b6f2 | 2475 | |
f2b68789 | 2476 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2477 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2478 | manager_close_idle_pipe(m); | |
f2b68789 | 2479 | |
af6da548 LP |
2480 | /* Turn off confirm spawn now */ |
2481 | m->confirm_spawn = false; | |
2482 | ||
f2b68789 | 2483 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2484 | return; |
2485 | ||
2486 | dual_timestamp_get(&m->finish_timestamp); | |
2487 | ||
67445f4e | 2488 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2489 | |
915b3753 LP |
2490 | /* Note that m->kernel_usec.monotonic is always at 0, |
2491 | * and m->firmware_usec.monotonic and | |
2492 | * m->loader_usec.monotonic should be considered | |
2493 | * negative values. */ | |
2494 | ||
7ceba241 LP |
2495 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2496 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2497 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2498 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2499 | |
e9ddabc2 | 2500 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2501 | |
915b3753 LP |
2502 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2503 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2504 | |
81270860 LP |
2505 | if (!log_on_console()) |
2506 | log_struct(LOG_INFO, | |
1ca6783f | 2507 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2508 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2509 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2510 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2511 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2fa4092c LP |
2512 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2513 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2514 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2515 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2516 | NULL); |
18fa6b27 | 2517 | } else { |
915b3753 | 2518 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2519 | initrd_usec = 0; |
2520 | ||
81270860 LP |
2521 | if (!log_on_console()) |
2522 | log_struct(LOG_INFO, | |
1ca6783f | 2523 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 ZJS |
2524 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2525 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
81270860 | 2526 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", |
2fa4092c LP |
2527 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2528 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2529 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2530 | NULL); |
18fa6b27 LP |
2531 | } |
2532 | } else { | |
915b3753 LP |
2533 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2534 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2535 | |
81270860 LP |
2536 | if (!log_on_console()) |
2537 | log_struct(LOG_INFO, | |
1ca6783f | 2538 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
ccd06097 | 2539 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
81270860 | 2540 | "MESSAGE=Startup finished in %s.", |
2fa4092c | 2541 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2542 | NULL); |
18fa6b27 | 2543 | } |
b0c918b9 | 2544 | |
718db961 | 2545 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2546 | |
2547 | sd_notifyf(false, | |
2548 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2549 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2550 | } |
2551 | ||
07719a21 LP |
2552 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2553 | char *p; | |
2554 | int r; | |
2555 | ||
2556 | assert(m); | |
2557 | assert(generator); | |
2558 | assert(name); | |
2559 | ||
2560 | if (*generator) | |
2561 | return 0; | |
2562 | ||
67445f4e | 2563 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2564 | /* systemd --system, not running --test */ |
07719a21 LP |
2565 | |
2566 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2567 | if (!p) |
2568 | return log_oom(); | |
07719a21 | 2569 | |
fcc81ea3 KS |
2570 | r = mkdir_p_label(p, 0755); |
2571 | if (r < 0) { | |
2572 | log_error("Failed to create generator directory %s: %s", | |
2573 | p, strerror(-r)); | |
2574 | free(p); | |
2575 | return r; | |
2576 | } | |
2577 | } else if (m->running_as == SYSTEMD_USER) { | |
2578 | const char *s = NULL; | |
2579 | ||
2580 | s = getenv("XDG_RUNTIME_DIR"); | |
2581 | if (!s) | |
2582 | return -EINVAL; | |
2583 | p = strjoin(s, "/systemd/", name, NULL); | |
2584 | if (!p) | |
2585 | return log_oom(); | |
2586 | ||
d2e54fae | 2587 | r = mkdir_p_label(p, 0755); |
07719a21 | 2588 | if (r < 0) { |
7ad94c71 ZJS |
2589 | log_error("Failed to create generator directory %s: %s", |
2590 | p, strerror(-r)); | |
07719a21 LP |
2591 | free(p); |
2592 | return r; | |
2593 | } | |
2594 | } else { | |
fcc81ea3 KS |
2595 | /* systemd --system --test */ |
2596 | ||
b7def684 | 2597 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2598 | if (!p) |
2599 | return log_oom(); | |
07719a21 LP |
2600 | |
2601 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2602 | log_error("Failed to create generator directory %s: %m", |
2603 | p); | |
34bf0281 | 2604 | free(p); |
07719a21 LP |
2605 | return -errno; |
2606 | } | |
2607 | } | |
2608 | ||
2609 | *generator = p; | |
2610 | return 0; | |
2611 | } | |
2612 | ||
2613 | static void trim_generator_dir(Manager *m, char **generator) { | |
2614 | assert(m); | |
2615 | assert(generator); | |
2616 | ||
2617 | if (!*generator) | |
2618 | return; | |
2619 | ||
2620 | if (rmdir(*generator) >= 0) { | |
2621 | free(*generator); | |
2622 | *generator = NULL; | |
2623 | } | |
2624 | ||
2625 | return; | |
2626 | } | |
2627 | ||
5a1e9937 | 2628 | void manager_run_generators(Manager *m) { |
718db961 | 2629 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2630 | const char *generator_path; |
07719a21 | 2631 | const char *argv[5]; |
07719a21 | 2632 | int r; |
5a1e9937 LP |
2633 | |
2634 | assert(m); | |
2635 | ||
67445f4e | 2636 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2637 | d = opendir(generator_path); |
2638 | if (!d) { | |
5a1e9937 LP |
2639 | if (errno == ENOENT) |
2640 | return; | |
2641 | ||
7ad94c71 ZJS |
2642 | log_error("Failed to enumerate generator directory %s: %m", |
2643 | generator_path); | |
5a1e9937 LP |
2644 | return; |
2645 | } | |
2646 | ||
07719a21 LP |
2647 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2648 | if (r < 0) | |
2649 | goto finish; | |
f1d19aa4 | 2650 | |
07719a21 LP |
2651 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2652 | if (r < 0) | |
2653 | goto finish; | |
5a1e9937 | 2654 | |
07719a21 LP |
2655 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2656 | if (r < 0) | |
2657 | goto finish; | |
5a1e9937 | 2658 | |
83cc030f LP |
2659 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2660 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2661 | argv[2] = m->generator_unit_path_early; |
2662 | argv[3] = m->generator_unit_path_late; | |
2663 | argv[4] = NULL; | |
5a1e9937 | 2664 | |
718db961 | 2665 | RUN_WITH_UMASK(0022) |
5c0d398d | 2666 | execute_directory(generator_path, d, (char**) argv); |
5a1e9937 | 2667 | |
718db961 | 2668 | finish: |
07719a21 LP |
2669 | trim_generator_dir(m, &m->generator_unit_path); |
2670 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2671 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2672 | } |
2673 | ||
07719a21 | 2674 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2675 | assert(m); |
07719a21 | 2676 | assert(generator); |
5a1e9937 | 2677 | |
07719a21 | 2678 | if (!*generator) |
5a1e9937 LP |
2679 | return; |
2680 | ||
07719a21 LP |
2681 | strv_remove(m->lookup_paths.unit_path, *generator); |
2682 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2683 | |
07719a21 LP |
2684 | free(*generator); |
2685 | *generator = NULL; | |
2686 | } | |
2687 | ||
2688 | void manager_undo_generators(Manager *m) { | |
2689 | assert(m); | |
2690 | ||
2691 | remove_generator_dir(m, &m->generator_unit_path); | |
2692 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2693 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2694 | } |
2695 | ||
718db961 LP |
2696 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2697 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2698 | assert(m); |
bcd8e6d1 | 2699 | |
718db961 | 2700 | l = m->environment; |
bcd8e6d1 | 2701 | |
718db961 LP |
2702 | if (!strv_isempty(minus)) { |
2703 | a = strv_env_delete(l, 1, minus); | |
2704 | if (!a) | |
2705 | return -ENOMEM; | |
2706 | ||
2707 | l = a; | |
2708 | } | |
2709 | ||
2710 | if (!strv_isempty(plus)) { | |
2711 | b = strv_env_merge(2, l, plus); | |
2712 | if (!b) | |
2713 | return -ENOMEM; | |
bcd8e6d1 | 2714 | |
718db961 LP |
2715 | l = b; |
2716 | } | |
2717 | ||
2718 | if (m->environment != l) | |
2719 | strv_free(m->environment); | |
2720 | if (a != l) | |
2721 | strv_free(a); | |
2722 | if (b != l) | |
2723 | strv_free(b); | |
2724 | ||
f069efb4 LP |
2725 | m->environment = l; |
2726 | manager_clean_environment(m); | |
2727 | strv_sort(m->environment); | |
2728 | ||
97d0e5f8 UTL |
2729 | return 0; |
2730 | } | |
2731 | ||
c93ff2e9 FC |
2732 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2733 | int i; | |
2734 | ||
2735 | assert(m); | |
2736 | ||
2737 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2738 | if (!default_rlimit[i]) |
2739 | continue; | |
c93ff2e9 | 2740 | |
07719a21 LP |
2741 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2742 | if (!m->rlimit[i]) | |
2743 | return -ENOMEM; | |
c93ff2e9 FC |
2744 | } |
2745 | ||
2746 | return 0; | |
2747 | } | |
2748 | ||
4cfa2c99 | 2749 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2750 | Unit *u; |
2751 | ||
2752 | assert(m); | |
2753 | ||
67445f4e | 2754 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2755 | return; |
2756 | ||
731a676c LP |
2757 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2758 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2759 | log_close_journal(); |
731a676c | 2760 | return; |
f1dd0c3f LP |
2761 | } |
2762 | ||
731a676c LP |
2763 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2764 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2765 | log_close_journal(); |
731a676c LP |
2766 | return; |
2767 | } | |
f1dd0c3f | 2768 | |
731a676c LP |
2769 | /* Hmm, OK, so the socket is fully up and the service is up |
2770 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2771 | log_open(); |
2772 | } | |
2773 | ||
d450b6f2 | 2774 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2775 | assert(m); |
d450b6f2 | 2776 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2777 | |
67445f4e | 2778 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2779 | return; |
2780 | ||
d450b6f2 | 2781 | m->show_status = mode; |
27d340c7 | 2782 | |
d450b6f2 | 2783 | if (mode > 0) |
27d340c7 LP |
2784 | touch("/run/systemd/show-status"); |
2785 | else | |
2786 | unlink("/run/systemd/show-status"); | |
2787 | } | |
2788 | ||
6084e22e | 2789 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2790 | assert(m); |
2791 | ||
67445f4e | 2792 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2793 | return false; |
2794 | ||
31a7eb86 ZJS |
2795 | if (m->no_console_output) |
2796 | return false; | |
2797 | ||
d450b6f2 | 2798 | if (m->show_status > 0) |
27d340c7 LP |
2799 | return true; |
2800 | ||
2801 | /* If Plymouth is running make sure we show the status, so | |
2802 | * that there's something nice to see when people press Esc */ | |
2803 | ||
2804 | return plymouth_running(); | |
2805 | } | |
68b29a9f | 2806 | |
984a2be4 | 2807 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2808 | va_list ap; |
2809 | ||
2810 | if (!manager_get_show_status(m)) | |
2811 | return; | |
2812 | ||
03b717a3 MS |
2813 | /* XXX We should totally drop the check for ephemeral here |
2814 | * and thus effectively make 'Type=idle' pointless. */ | |
2815 | if (ephemeral && m->n_on_console > 0) | |
2816 | return; | |
2817 | ||
25cee550 MS |
2818 | if (!manager_is_booting_or_shutting_down(m)) |
2819 | return; | |
2820 | ||
2821 | va_start(ap, format); | |
984a2be4 | 2822 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2823 | va_end(ap); |
2824 | } | |
2825 | ||
a57f7e2c LP |
2826 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2827 | _cleanup_free_ char *p = NULL; | |
2828 | Unit *found; | |
2829 | ||
2830 | assert(m); | |
2831 | assert(path); | |
2832 | assert(suffix); | |
2833 | assert(_found); | |
2834 | ||
2835 | p = unit_name_from_path(path, suffix); | |
2836 | if (!p) | |
2837 | return -ENOMEM; | |
2838 | ||
2839 | found = manager_get_unit(m, p); | |
2840 | if (!found) { | |
2841 | *_found = NULL; | |
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | *_found = found; | |
2846 | return 1; | |
2847 | } | |
2848 | ||
2849 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2850 | char p[strlen(path)+1]; | |
2851 | ||
2852 | assert(m); | |
2853 | assert(path); | |
2854 | ||
2855 | strcpy(p, path); | |
2856 | path_kill_slashes(p); | |
2857 | ||
2858 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2859 | } |