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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 | 22 | #include <errno.h> |
87d1515d | 23 | #include <string.h> |
9152c765 | 24 | #include <signal.h> |
9152c765 LP |
25 | #include <sys/wait.h> |
26 | #include <unistd.h> | |
e46b13c8 ZJS |
27 | #include <sys/inotify.h> |
28 | #include <sys/epoll.h> | |
e1414003 LP |
29 | #include <sys/reboot.h> |
30 | #include <sys/ioctl.h> | |
31 | #include <linux/kd.h> | |
80876c20 | 32 | #include <fcntl.h> |
fe51822e | 33 | #include <dirent.h> |
8742514c | 34 | #include <sys/timerfd.h> |
830f6caa LP |
35 | |
36 | #ifdef HAVE_AUDIT | |
4927fcae | 37 | #include <libaudit.h> |
830f6caa | 38 | #endif |
60918275 | 39 | |
718db961 | 40 | #include "sd-daemon.h" |
718db961 | 41 | #include "sd-messages.h" |
81527be1 | 42 | |
60918275 | 43 | #include "manager.h" |
75778e21 | 44 | #include "transaction.h" |
60918275 LP |
45 | #include "hashmap.h" |
46 | #include "macro.h" | |
47 | #include "strv.h" | |
16354eff | 48 | #include "log.h" |
2a987ee8 | 49 | #include "util.h" |
49e942b2 | 50 | #include "mkdir.h" |
ea430986 | 51 | #include "ratelimit.h" |
e21fea24 | 52 | #include "locale-setup.h" |
9e2f7c11 | 53 | #include "unit-name.h" |
1137a57c | 54 | #include "missing.h" |
c6878637 | 55 | #include "rm-rf.h" |
84e3543e | 56 | #include "path-lookup.h" |
514f4ef5 | 57 | #include "special.h" |
d06dacd0 | 58 | #include "exit-status.h" |
5dc4c17f | 59 | #include "virt.h" |
e96d6be7 | 60 | #include "watchdog.h" |
9eb977db | 61 | #include "path-util.h" |
c1165f82 | 62 | #include "audit-fd.h" |
c51d84dc | 63 | #include "boot-timestamps.h" |
8b55b8c4 | 64 | #include "env-util.h" |
96aad8d1 | 65 | #include "bus-common-errors.h" |
718db961 LP |
66 | #include "bus-error.h" |
67 | #include "bus-util.h" | |
68 | #include "dbus.h" | |
69 | #include "dbus-unit.h" | |
70 | #include "dbus-job.h" | |
71 | #include "dbus-manager.h" | |
e3dd987c | 72 | #include "bus-kernel.h" |
e4746b57 | 73 | #include "time-util.h" |
0b452006 | 74 | #include "process-util.h" |
60918275 | 75 | |
03b717a3 | 76 | /* Initial delay and the interval for printing status messages about running jobs */ |
fd08a840 ZJS |
77 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
78 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
03b717a3 MS |
79 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
80 | ||
718db961 LP |
81 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
82 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
83 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
84 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
85 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 86 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
e801700e ZJS |
87 | static int manager_run_generators(Manager *m); |
88 | static void manager_undo_generators(Manager *m); | |
718db961 | 89 | |
2ae56591 | 90 | static void manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 ZJS |
91 | usec_t next; |
92 | ||
718db961 | 93 | assert(m); |
03b717a3 | 94 | |
718db961 | 95 | if (m->jobs_in_progress_event_source) |
2ae56591 | 96 | return; |
03b717a3 | 97 | |
e5723c89 | 98 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
2ae56591 | 99 | (void) sd_event_add_time( |
6a0f1f6d LP |
100 | m->event, |
101 | &m->jobs_in_progress_event_source, | |
102 | CLOCK_MONOTONIC, | |
103 | next, 0, | |
104 | manager_dispatch_jobs_in_progress, m); | |
03b717a3 MS |
105 | } |
106 | ||
718db961 | 107 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 108 | |
03b717a3 MS |
109 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
110 | char *p = buffer; | |
111 | ||
112 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
113 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
114 | ||
115 | if (pos > 1) { | |
6282c859 MS |
116 | if (pos > 2) |
117 | p = mempset(p, ' ', pos-2); | |
5052495b | 118 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
119 | *p++ = '*'; |
120 | } | |
121 | ||
122 | if (pos > 0 && pos <= width) { | |
5052495b | 123 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
124 | *p++ = '*'; |
125 | } | |
126 | ||
5052495b | 127 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
128 | |
129 | if (pos < width) { | |
5052495b | 130 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 131 | *p++ = '*'; |
6282c859 MS |
132 | if (pos < width-1) |
133 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 134 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 135 | } |
03b717a3 MS |
136 | } |
137 | ||
cb8ccb22 | 138 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
139 | assert(m); |
140 | ||
cb8ccb22 ZJS |
141 | if (enable) { |
142 | if (m->show_status == SHOW_STATUS_AUTO) | |
143 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
144 | } else { | |
145 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
146 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
147 | } | |
148 | } | |
149 | ||
03b717a3 | 150 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 151 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
152 | Iterator i; |
153 | Job *j; | |
03b717a3 MS |
154 | unsigned counter = 0, print_nr; |
155 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
156 | unsigned cylon_pos; | |
8bb310c3 ZJS |
157 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
158 | uint64_t x; | |
03b717a3 | 159 | |
718db961 | 160 | assert(m); |
9c3349e2 | 161 | assert(m->n_running_jobs > 0); |
718db961 | 162 | |
cb8ccb22 | 163 | manager_flip_auto_status(m, true); |
d450b6f2 | 164 | |
03b717a3 MS |
165 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
166 | ||
167 | HASHMAP_FOREACH(j, m->jobs, i) | |
168 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
169 | break; | |
170 | ||
e970a72e MS |
171 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
172 | * so the above loop must have succeeded in finding j. */ | |
173 | assert(counter == print_nr + 1); | |
51d122af | 174 | assert(j); |
5a82a91a | 175 | |
03b717a3 MS |
176 | cylon_pos = m->jobs_in_progress_iteration % 14; |
177 | if (cylon_pos >= 8) | |
178 | cylon_pos = 14 - cylon_pos; | |
179 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
180 | ||
8bb310c3 ZJS |
181 | m->jobs_in_progress_iteration++; |
182 | ||
d6483ba7 ZJS |
183 | if (m->n_running_jobs > 1) { |
184 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
185 | job_of_n = NULL; | |
186 | } | |
03b717a3 | 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 | ||
127d5fd1 | 192 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, 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 MS |
198 | } |
199 | ||
e46b13c8 ZJS |
200 | static int have_ask_password(void) { |
201 | _cleanup_closedir_ DIR *dir; | |
202 | ||
203 | dir = opendir("/run/systemd/ask-password"); | |
204 | if (!dir) { | |
205 | if (errno == ENOENT) | |
206 | return false; | |
207 | else | |
208 | return -errno; | |
209 | } | |
210 | ||
211 | for (;;) { | |
212 | struct dirent *de; | |
213 | ||
214 | errno = 0; | |
215 | de = readdir(dir); | |
216 | if (!de && errno != 0) | |
217 | return -errno; | |
218 | if (!de) | |
219 | return false; | |
220 | ||
221 | if (startswith(de->d_name, "ask.")) | |
222 | return true; | |
223 | } | |
224 | } | |
225 | ||
226 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
227 | int fd, uint32_t revents, void *userdata) { | |
228 | Manager *m = userdata; | |
229 | ||
230 | assert(m); | |
231 | ||
232 | flush_fd(fd); | |
233 | ||
234 | m->have_ask_password = have_ask_password(); | |
235 | if (m->have_ask_password < 0) | |
236 | /* Log error but continue. Negative have_ask_password | |
237 | * is treated as unknown status. */ | |
c33b3297 | 238 | log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
239 | |
240 | return 0; | |
241 | } | |
242 | ||
243 | static void manager_close_ask_password(Manager *m) { | |
244 | assert(m); | |
245 | ||
246 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); | |
247 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); | |
248 | m->have_ask_password = -EINVAL; | |
249 | } | |
250 | ||
251 | static int manager_check_ask_password(Manager *m) { | |
252 | int r; | |
253 | ||
254 | assert(m); | |
255 | ||
256 | if (!m->ask_password_event_source) { | |
257 | assert(m->ask_password_inotify_fd < 0); | |
258 | ||
259 | mkdir_p_label("/run/systemd/ask-password", 0755); | |
260 | ||
261 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
4a62c710 MS |
262 | if (m->ask_password_inotify_fd < 0) |
263 | return log_error_errno(errno, "inotify_init1() failed: %m"); | |
e46b13c8 ZJS |
264 | |
265 | if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) { | |
56f64d95 | 266 | log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
267 | manager_close_ask_password(m); |
268 | return -errno; | |
269 | } | |
270 | ||
271 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
272 | m->ask_password_inotify_fd, EPOLLIN, | |
273 | manager_dispatch_ask_password_fd, m); | |
274 | if (r < 0) { | |
56f64d95 | 275 | log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
276 | manager_close_ask_password(m); |
277 | return -errno; | |
278 | } | |
279 | ||
280 | /* Queries might have been added meanwhile... */ | |
281 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
282 | m->ask_password_inotify_fd, EPOLLIN, m); | |
283 | } | |
284 | ||
285 | return m->have_ask_password; | |
286 | } | |
287 | ||
31a7eb86 | 288 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
289 | int r; |
290 | ||
718db961 LP |
291 | assert(m); |
292 | ||
293 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
294 | return 0; |
295 | ||
296 | if (m->idle_pipe[2] < 0) | |
297 | return 0; | |
298 | ||
151b9b96 | 299 | r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m); |
23bbb0de MS |
300 | if (r < 0) |
301 | return log_error_errno(r, "Failed to watch idle pipe: %m"); | |
31a7eb86 | 302 | |
31a7eb86 | 303 | return 0; |
31a7eb86 ZJS |
304 | } |
305 | ||
718db961 LP |
306 | static void manager_close_idle_pipe(Manager *m) { |
307 | assert(m); | |
31a7eb86 | 308 | |
3d94f76c LP |
309 | safe_close_pair(m->idle_pipe); |
310 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
311 | } |
312 | ||
8742514c | 313 | static int manager_setup_time_change(Manager *m) { |
718db961 | 314 | int r; |
b92bea5d ZJS |
315 | |
316 | /* We only care for the cancellation event, hence we set the | |
317 | * timeout to the latest possible value. */ | |
318 | struct itimerspec its = { | |
319 | .it_value.tv_sec = TIME_T_MAX, | |
320 | }; | |
8742514c | 321 | |
718db961 LP |
322 | assert(m); |
323 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 324 | |
0d8c31ff ZJS |
325 | if (m->test_run) |
326 | return 0; | |
327 | ||
8742514c LP |
328 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever |
329 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
330 | ||
718db961 | 331 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
4a62c710 MS |
332 | if (m->time_change_fd < 0) |
333 | return log_error_errno(errno, "Failed to create timerfd: %m"); | |
8742514c | 334 | |
718db961 | 335 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
56f64d95 | 336 | log_debug_errno(errno, "Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
03e334a1 | 337 | m->time_change_fd = safe_close(m->time_change_fd); |
8742514c LP |
338 | return 0; |
339 | } | |
340 | ||
151b9b96 | 341 | r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m); |
23bbb0de MS |
342 | if (r < 0) |
343 | return log_error_errno(r, "Failed to create time change event source: %m"); | |
8742514c LP |
344 | |
345 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
80876c20 | 350 | static int enable_special_signals(Manager *m) { |
718db961 | 351 | _cleanup_close_ int fd = -1; |
80876c20 LP |
352 | |
353 | assert(m); | |
354 | ||
a41b539e | 355 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
356 | * this will fail with EPERM (older) or EINVAL (newer), so |
357 | * ignore that. */ | |
358 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
56f64d95 | 359 | log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m"); |
80876c20 | 360 | |
a41b539e LP |
361 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
362 | if (fd < 0) { | |
363 | /* Support systems without virtual console */ | |
364 | if (fd != -ENOENT) | |
56f64d95 | 365 | log_warning_errno(errno, "Failed to open /dev/tty0: %m"); |
a41b539e | 366 | } else { |
80876c20 LP |
367 | /* Enable that we get SIGWINCH on kbrequest */ |
368 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
56f64d95 | 369 | log_warning_errno(errno, "Failed to enable kbrequest handling: %m"); |
80876c20 LP |
370 | } |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
ce578209 | 375 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
376 | struct sigaction sa = { |
377 | .sa_handler = SIG_DFL, | |
378 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
379 | }; | |
718db961 LP |
380 | sigset_t mask; |
381 | int r; | |
60918275 | 382 | |
ce578209 LP |
383 | assert(m); |
384 | ||
57c0c30e LP |
385 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
386 | ||
4dffec14 LP |
387 | /* We make liberal use of realtime signals here. On |
388 | * Linux/glibc we have 30 of them (with the exception of Linux | |
389 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
390 | * (aka SIGRTMAX). */ | |
7d793605 | 391 | |
4dffec14 | 392 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
393 | sigset_add_many(&mask, |
394 | SIGCHLD, /* Child died */ | |
395 | SIGTERM, /* Reexecute daemon */ | |
396 | SIGHUP, /* Reload configuration */ | |
397 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
398 | SIGUSR2, /* systemd: dump status */ | |
399 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
400 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
401 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
4dffec14 | 402 | |
7d793605 | 403 | SIGRTMIN+0, /* systemd: start default.target */ |
0003d1ab | 404 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
405 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
406 | SIGRTMIN+3, /* systemd: start halt.target */ | |
407 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
408 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab | 409 | SIGRTMIN+6, /* systemd: start kexec.target */ |
4dffec14 LP |
410 | |
411 | /* ... space for more special targets ... */ | |
412 | ||
0003d1ab LP |
413 | SIGRTMIN+13, /* systemd: Immediate halt */ |
414 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
415 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
416 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
4dffec14 LP |
417 | |
418 | /* ... space for more immediate system state changes ... */ | |
419 | ||
0658666b LP |
420 | SIGRTMIN+20, /* systemd: enable status messages */ |
421 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
422 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
423 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 424 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4dffec14 LP |
425 | |
426 | /* .. one free signal here ... */ | |
427 | ||
428 | #if !defined(__hppa64__) && !defined(__hppa__) | |
429 | /* Apparently Linux on hppa has fewer RT | |
430 | * signals (SIGRTMAX is SIGRTMIN+25 there), | |
431 | * hence let's not try to make use of them | |
432 | * here. Since these commands are accessible | |
433 | * by different means and only really a safety | |
434 | * net, the missing functionality on hppa | |
435 | * shouldn't matter. */ | |
436 | ||
4cfa2c99 | 437 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
438 | SIGRTMIN+27, /* systemd: set log target to console */ |
439 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
ee33e53a | 440 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete) */ |
4dffec14 LP |
441 | |
442 | /* ... one free signal here SIGRTMIN+30 ... */ | |
443 | #endif | |
7d793605 | 444 | -1); |
ce578209 LP |
445 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
446 | ||
718db961 LP |
447 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
448 | if (m->signal_fd < 0) | |
ce578209 LP |
449 | return -errno; |
450 | ||
151b9b96 | 451 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
452 | if (r < 0) |
453 | return r; | |
ce578209 | 454 | |
fa28bc2d | 455 | /* Process signals a bit earlier than the rest of things, but |
46849c3f | 456 | * later than notify_fd processing, so that the notify |
fa28bc2d LP |
457 | * processing can still figure out to which process/service a |
458 | * message belongs, before we reap the process. */ | |
29083707 LP |
459 | r = sd_event_source_set_priority(m->signal_event_source, -5); |
460 | if (r < 0) | |
461 | return r; | |
462 | ||
67445f4e | 463 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 464 | return enable_special_signals(m); |
e1414003 | 465 | |
ce578209 LP |
466 | return 0; |
467 | } | |
468 | ||
f069efb4 LP |
469 | static void manager_clean_environment(Manager *m) { |
470 | assert(m); | |
471 | ||
472 | /* Let's remove some environment variables that we | |
473 | * need ourselves to communicate with our clients */ | |
474 | strv_env_unset_many( | |
475 | m->environment, | |
476 | "NOTIFY_SOCKET", | |
477 | "MAINPID", | |
478 | "MANAGERPID", | |
479 | "LISTEN_PID", | |
480 | "LISTEN_FDS", | |
481 | "WATCHDOG_PID", | |
482 | "WATCHDOG_USEC", | |
483 | NULL); | |
484 | } | |
485 | ||
e21fea24 | 486 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
487 | assert(m); |
488 | ||
e21fea24 KS |
489 | if (m->running_as == SYSTEMD_SYSTEM) { |
490 | /* The system manager always starts with a clean | |
491 | * environment for its children. It does not import | |
492 | * the kernel or the parents exported variables. | |
493 | * | |
494 | * The initial passed environ is untouched to keep | |
495 | * /proc/self/environ valid; it is used for tagging | |
496 | * the init process inside containers. */ | |
43638332 ZJS |
497 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
498 | NULL); | |
e21fea24 KS |
499 | |
500 | /* Import locale variables LC_*= from configuration */ | |
501 | locale_setup(&m->environment); | |
43d03a83 | 502 | } else { |
e21fea24 KS |
503 | /* The user manager passes its own environment |
504 | * along to its children. */ | |
505 | m->environment = strv_copy(environ); | |
43d03a83 LP |
506 | } |
507 | ||
e21fea24 KS |
508 | if (!m->environment) |
509 | return -ENOMEM; | |
8b55b8c4 | 510 | |
f069efb4 | 511 | manager_clean_environment(m); |
9d5a3757 LP |
512 | strv_sort(m->environment); |
513 | ||
e21fea24 | 514 | return 0; |
71ecc858 LP |
515 | } |
516 | ||
0d8c31ff | 517 | int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { |
ce578209 | 518 | Manager *m; |
e3dd987c | 519 | int r; |
8e274523 LP |
520 | |
521 | assert(_m); | |
a5dab5ce | 522 | assert(running_as >= 0); |
67445f4e | 523 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 524 | |
915b3753 LP |
525 | m = new0(Manager, 1); |
526 | if (!m) | |
8e274523 | 527 | return -ENOMEM; |
60918275 | 528 | |
4f8d551f | 529 | #ifdef ENABLE_EFI |
530a9662 | 530 | if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) |
c51d84dc | 531 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
532 | #endif |
533 | ||
a5dab5ce | 534 | m->running_as = running_as; |
a16e1123 | 535 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
bd8f585b | 536 | m->default_timer_accuracy_usec = USEC_PER_MINUTE; |
80876c20 | 537 | |
718db961 | 538 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 539 | |
befb6d54 | 540 | 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 = m->utab_inotify_fd = -1; |
ea430986 | 541 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 542 | |
e46b13c8 ZJS |
543 | m->ask_password_inotify_fd = -1; |
544 | m->have_ask_password = -EINVAL; /* we don't know */ | |
545 | ||
0d8c31ff ZJS |
546 | m->test_run = test_run; |
547 | ||
2e5c94b9 LP |
548 | /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */ |
549 | RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7); | |
550 | ||
e21fea24 KS |
551 | r = manager_default_environment(m); |
552 | if (r < 0) | |
1137a57c LP |
553 | goto fail; |
554 | ||
d5099efc | 555 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
718db961 | 556 | if (r < 0) |
60918275 LP |
557 | goto fail; |
558 | ||
d5099efc | 559 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
718db961 | 560 | if (r < 0) |
60918275 LP |
561 | goto fail; |
562 | ||
d5099efc | 563 | r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops); |
718db961 | 564 | if (r < 0) |
9152c765 LP |
565 | goto fail; |
566 | ||
d5099efc | 567 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
718db961 | 568 | if (r < 0) |
05e343b7 LP |
569 | goto fail; |
570 | ||
d5099efc | 571 | r = set_ensure_allocated(&m->startup_units, NULL); |
95ae05c0 WC |
572 | if (r < 0) |
573 | goto fail; | |
574 | ||
d5099efc | 575 | r = set_ensure_allocated(&m->failed_units, NULL); |
f755e3b7 LP |
576 | if (r < 0) |
577 | goto fail; | |
578 | ||
718db961 LP |
579 | r = sd_event_default(&m->event); |
580 | if (r < 0) | |
8742514c LP |
581 | goto fail; |
582 | ||
151b9b96 | 583 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); |
752b5905 LP |
584 | if (r < 0) |
585 | goto fail; | |
586 | ||
587 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
588 | if (r < 0) | |
589 | goto fail; | |
590 | ||
591 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
592 | if (r < 0) | |
593 | goto fail; | |
594 | ||
8742514c LP |
595 | r = manager_setup_signals(m); |
596 | if (r < 0) | |
9152c765 LP |
597 | goto fail; |
598 | ||
8742514c LP |
599 | r = manager_setup_cgroup(m); |
600 | if (r < 0) | |
8e274523 LP |
601 | goto fail; |
602 | ||
8742514c LP |
603 | r = manager_setup_time_change(m); |
604 | if (r < 0) | |
8c47c732 LP |
605 | goto fail; |
606 | ||
9670d583 LP |
607 | m->udev = udev_new(); |
608 | if (!m->udev) { | |
609 | r = -ENOMEM; | |
610 | goto fail; | |
611 | } | |
612 | ||
d86f9d52 LP |
613 | /* Note that we set up neither kdbus, nor the notify fd |
614 | * here. We do that after deserialization, since they might | |
615 | * have gotten serialized across the reexec. */ | |
616 | ||
72bc8d00 LP |
617 | m->taint_usr = dir_is_empty("/usr") > 0; |
618 | ||
8e274523 LP |
619 | *_m = m; |
620 | return 0; | |
60918275 LP |
621 | |
622 | fail: | |
623 | manager_free(m); | |
8e274523 | 624 | return r; |
60918275 LP |
625 | } |
626 | ||
d86f9d52 | 627 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 628 | int r; |
d86f9d52 | 629 | |
0d8c31ff ZJS |
630 | if (m->test_run) |
631 | return 0; | |
632 | ||
d86f9d52 LP |
633 | if (m->notify_fd < 0) { |
634 | _cleanup_close_ int fd = -1; | |
55836941 | 635 | union sockaddr_union sa = { |
7181dbdb LP |
636 | .sa.sa_family = AF_UNIX, |
637 | }; | |
55836941 | 638 | static const int one = 1; |
d86f9d52 LP |
639 | |
640 | /* First free all secondary fields */ | |
641 | free(m->notify_socket); | |
642 | m->notify_socket = NULL; | |
643 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); | |
644 | ||
645 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
4a62c710 MS |
646 | if (fd < 0) |
647 | return log_error_errno(errno, "Failed to allocate notification socket: %m"); | |
d86f9d52 | 648 | |
498e87d6 | 649 | if (m->running_as == SYSTEMD_SYSTEM) |
7181dbdb | 650 | m->notify_socket = strdup("/run/systemd/notify"); |
498e87d6 | 651 | else { |
7181dbdb | 652 | const char *e; |
d86f9d52 | 653 | |
7181dbdb LP |
654 | e = getenv("XDG_RUNTIME_DIR"); |
655 | if (!e) { | |
56f64d95 | 656 | log_error_errno(errno, "XDG_RUNTIME_DIR is not set: %m"); |
7181dbdb LP |
657 | return -EINVAL; |
658 | } | |
659 | ||
660 | m->notify_socket = strappend(e, "/systemd/notify"); | |
661 | } | |
498e87d6 LP |
662 | if (!m->notify_socket) |
663 | return log_oom(); | |
664 | ||
665 | (void) mkdir_parents_label(m->notify_socket, 0755); | |
f0e62e89 | 666 | (void) unlink(m->notify_socket); |
7181dbdb LP |
667 | |
668 | strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1); | |
669 | r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)); | |
4a62c710 MS |
670 | if (r < 0) |
671 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
d86f9d52 LP |
672 | |
673 | r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); | |
4a62c710 MS |
674 | if (r < 0) |
675 | return log_error_errno(errno, "SO_PASSCRED failed: %m"); | |
d86f9d52 | 676 | |
d86f9d52 LP |
677 | m->notify_fd = fd; |
678 | fd = -1; | |
679 | ||
680 | log_debug("Using notification socket %s", m->notify_socket); | |
681 | } | |
682 | ||
683 | if (!m->notify_event_source) { | |
151b9b96 | 684 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
895b3a7b MS |
685 | if (r < 0) |
686 | return log_error_errno(r, "Failed to allocate notify event source: %m"); | |
d86f9d52 LP |
687 | |
688 | /* Process signals a bit earlier than SIGCHLD, so that we can | |
689 | * still identify to which service an exit message belongs */ | |
690 | r = sd_event_source_set_priority(m->notify_event_source, -7); | |
23bbb0de MS |
691 | if (r < 0) |
692 | return log_error_errno(r, "Failed to set priority of notify event source: %m"); | |
d86f9d52 LP |
693 | } |
694 | ||
695 | return 0; | |
696 | } | |
697 | ||
698 | static int manager_setup_kdbus(Manager *m) { | |
5bf348d7 | 699 | #ifdef ENABLE_KDBUS |
d86f9d52 LP |
700 | _cleanup_free_ char *p = NULL; |
701 | ||
702 | assert(m); | |
703 | ||
0d8c31ff | 704 | if (m->test_run || m->kdbus_fd >= 0) |
d86f9d52 LP |
705 | return 0; |
706 | ||
90b99192 | 707 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) |
387eba00 | 708 | bus_kernel_fix_attach_mask(); |
1a299299 LP |
709 | |
710 | m->kdbus_fd = bus_kernel_create_bus( | |
711 | m->running_as == SYSTEMD_SYSTEM ? "system" : "user", | |
712 | m->running_as == SYSTEMD_SYSTEM, &p); | |
713 | ||
eb56eb9b MS |
714 | if (m->kdbus_fd < 0) |
715 | return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m"); | |
d86f9d52 LP |
716 | |
717 | log_debug("Successfully set up kdbus on %s", p); | |
d86f9d52 LP |
718 | #endif |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
723 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
724 | bool try_bus_connect; | |
725 | ||
726 | assert(m); | |
727 | ||
0d8c31ff ZJS |
728 | if (m->test_run) |
729 | return 0; | |
730 | ||
d86f9d52 LP |
731 | try_bus_connect = |
732 | m->kdbus_fd >= 0 || | |
733 | reexecuting || | |
734 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
735 | ||
736 | /* Try to connect to the busses, if possible. */ | |
737 | return bus_init(m, try_bus_connect); | |
738 | } | |
739 | ||
23a177ef | 740 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 741 | Unit *u; |
23a177ef LP |
742 | unsigned n = 0; |
743 | ||
744 | assert(m); | |
745 | ||
595ed347 MS |
746 | while ((u = m->cleanup_queue)) { |
747 | assert(u->in_cleanup_queue); | |
23a177ef | 748 | |
595ed347 | 749 | unit_free(u); |
23a177ef LP |
750 | n++; |
751 | } | |
752 | ||
753 | return n; | |
754 | } | |
755 | ||
eced69b3 | 756 | enum { |
35b8ca3a | 757 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
758 | GC_OFFSET_UNSURE, /* No clue */ |
759 | GC_OFFSET_GOOD, /* We still need this unit */ | |
760 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
761 | _GC_OFFSET_MAX | |
762 | }; | |
763 | ||
764 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
765 | Iterator i; |
766 | Unit *other; | |
eced69b3 | 767 | bool is_bad; |
701cc384 LP |
768 | |
769 | assert(u); | |
770 | ||
ac155bb8 MS |
771 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
772 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
773 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
774 | return; |
775 | ||
ac155bb8 | 776 | if (u->in_cleanup_queue) |
701cc384 LP |
777 | goto bad; |
778 | ||
779 | if (unit_check_gc(u)) | |
780 | goto good; | |
781 | ||
ac155bb8 | 782 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
783 | |
784 | is_bad = true; | |
785 | ||
ac155bb8 | 786 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
787 | unit_gc_sweep(other, gc_marker); |
788 | ||
ac155bb8 | 789 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 790 | goto good; |
eced69b3 | 791 | |
ac155bb8 | 792 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 793 | is_bad = false; |
701cc384 LP |
794 | } |
795 | ||
eced69b3 LP |
796 | if (is_bad) |
797 | goto bad; | |
798 | ||
799 | /* We were unable to find anything out about this entry, so | |
800 | * let's investigate it later */ | |
ac155bb8 | 801 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
802 | unit_add_to_gc_queue(u); |
803 | return; | |
804 | ||
701cc384 | 805 | bad: |
eced69b3 LP |
806 | /* We definitely know that this one is not useful anymore, so |
807 | * let's mark it for deletion */ | |
ac155bb8 | 808 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 809 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
810 | return; |
811 | ||
812 | good: | |
ac155bb8 | 813 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
814 | } |
815 | ||
816 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 817 | Unit *u; |
701cc384 | 818 | unsigned n = 0; |
eced69b3 | 819 | unsigned gc_marker; |
701cc384 LP |
820 | |
821 | assert(m); | |
822 | ||
cf1265e1 | 823 | /* log_debug("Running GC..."); */ |
701cc384 | 824 | |
eced69b3 LP |
825 | m->gc_marker += _GC_OFFSET_MAX; |
826 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 827 | m->gc_marker = 1; |
701cc384 | 828 | |
eced69b3 LP |
829 | gc_marker = m->gc_marker; |
830 | ||
595ed347 MS |
831 | while ((u = m->gc_queue)) { |
832 | assert(u->in_gc_queue); | |
701cc384 | 833 | |
595ed347 | 834 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 835 | |
71fda00f | 836 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 837 | u->in_gc_queue = false; |
701cc384 LP |
838 | |
839 | n++; | |
840 | ||
595ed347 MS |
841 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
842 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
cc3bc3e6 ZJS |
843 | if (u->id) |
844 | log_unit_debug(u->id, "Collecting %s", u->id); | |
595ed347 MS |
845 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
846 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
847 | } |
848 | } | |
849 | ||
850 | m->n_in_gc_queue = 0; | |
701cc384 LP |
851 | |
852 | return n; | |
853 | } | |
854 | ||
a16e1123 | 855 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 856 | Unit *u; |
60918275 LP |
857 | |
858 | assert(m); | |
859 | ||
87f0e418 LP |
860 | while ((u = hashmap_first(m->units))) |
861 | unit_free(u); | |
964e0949 LP |
862 | |
863 | manager_dispatch_cleanup_queue(m); | |
864 | ||
865 | assert(!m->load_queue); | |
866 | assert(!m->run_queue); | |
867 | assert(!m->dbus_unit_queue); | |
868 | assert(!m->dbus_job_queue); | |
869 | assert(!m->cleanup_queue); | |
870 | assert(!m->gc_queue); | |
871 | ||
964e0949 LP |
872 | assert(hashmap_isempty(m->jobs)); |
873 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
874 | |
875 | m->n_on_console = 0; | |
876 | m->n_running_jobs = 0; | |
a16e1123 LP |
877 | } |
878 | ||
06d8d842 | 879 | Manager* manager_free(Manager *m) { |
a16e1123 | 880 | UnitType c; |
c93ff2e9 | 881 | int i; |
87f0e418 | 882 | |
06d8d842 ZJS |
883 | if (!m) |
884 | return NULL; | |
a16e1123 LP |
885 | |
886 | manager_clear_jobs_and_units(m); | |
23a177ef | 887 | |
7824bbeb LP |
888 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
889 | if (unit_vtable[c]->shutdown) | |
890 | unit_vtable[c]->shutdown(m); | |
891 | ||
a16e1123 LP |
892 | /* If we reexecute ourselves, we keep the root cgroup |
893 | * around */ | |
c6c18be3 | 894 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 895 | |
5a1e9937 LP |
896 | manager_undo_generators(m); |
897 | ||
5e8d1c9a | 898 | bus_done(m); |
ea430986 | 899 | |
87f0e418 | 900 | hashmap_free(m->units); |
60918275 | 901 | hashmap_free(m->jobs); |
5ba6985b LP |
902 | hashmap_free(m->watch_pids1); |
903 | hashmap_free(m->watch_pids2); | |
05e343b7 | 904 | hashmap_free(m->watch_bus); |
9152c765 | 905 | |
95ae05c0 | 906 | set_free(m->startup_units); |
f755e3b7 LP |
907 | set_free(m->failed_units); |
908 | ||
718db961 LP |
909 | sd_event_source_unref(m->signal_event_source); |
910 | sd_event_source_unref(m->notify_event_source); | |
911 | sd_event_source_unref(m->time_change_event_source); | |
912 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
913 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 914 | sd_event_source_unref(m->run_queue_event_source); |
718db961 | 915 | |
03e334a1 LP |
916 | safe_close(m->signal_fd); |
917 | safe_close(m->notify_fd); | |
918 | safe_close(m->time_change_fd); | |
919 | safe_close(m->kdbus_fd); | |
718db961 | 920 | |
e46b13c8 ZJS |
921 | manager_close_ask_password(m); |
922 | ||
718db961 LP |
923 | manager_close_idle_pipe(m); |
924 | ||
9670d583 | 925 | udev_unref(m->udev); |
718db961 | 926 | sd_event_unref(m->event); |
60918275 | 927 | |
c952c6ec LP |
928 | free(m->notify_socket); |
929 | ||
84e3543e | 930 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 931 | strv_free(m->environment); |
036643a2 | 932 | |
4ad49000 | 933 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 934 | set_free_free(m->unit_path_cache); |
33be102a | 935 | |
664f88a7 LP |
936 | free(m->switch_root); |
937 | free(m->switch_root_init); | |
938 | ||
517d56b1 | 939 | for (i = 0; i < _RLIMIT_MAX; i++) |
c93ff2e9 FC |
940 | free(m->rlimit[i]); |
941 | ||
a57f7e2c LP |
942 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
943 | hashmap_free(m->units_requiring_mounts_for); | |
944 | ||
60918275 | 945 | free(m); |
06d8d842 | 946 | return NULL; |
60918275 LP |
947 | } |
948 | ||
a16e1123 | 949 | int manager_enumerate(Manager *m) { |
0faacd47 | 950 | int r = 0; |
f50e0a01 | 951 | UnitType c; |
f50e0a01 LP |
952 | |
953 | assert(m); | |
954 | ||
a16e1123 LP |
955 | /* Let's ask every type to load all units from disk/kernel |
956 | * that it might know */ | |
0faacd47 LP |
957 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { |
958 | int q; | |
959 | ||
960 | if (unit_vtable[c]->supported && !unit_vtable[c]->supported(m)) { | |
03afec3c | 961 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); |
0faacd47 | 962 | continue; |
a57f7e2c | 963 | } |
f50e0a01 | 964 | |
0faacd47 LP |
965 | if (!unit_vtable[c]->enumerate) |
966 | continue; | |
967 | ||
968 | q = unit_vtable[c]->enumerate(m); | |
969 | if (q < 0) | |
970 | r = q; | |
971 | } | |
972 | ||
f50e0a01 | 973 | manager_dispatch_load_queue(m); |
a16e1123 LP |
974 | return r; |
975 | } | |
976 | ||
9588bc32 | 977 | static int manager_coldplug(Manager *m) { |
8f8f05a9 | 978 | int r = 0; |
a16e1123 LP |
979 | Iterator i; |
980 | Unit *u; | |
981 | char *k; | |
982 | ||
6e392c9c IS |
983 | /* |
984 | * Some unit types tend to spawn jobs or check other units' state | |
985 | * during coldplug. This is wrong because it is undefined whether the | |
986 | * units in question have been already coldplugged (i. e. their state | |
987 | * restored). This way, we can easily re-start an already started unit | |
988 | * or otherwise make a wrong decision based on the unit's state. | |
989 | * | |
990 | * Solve this by providing a way for coldplug functions to defer | |
991 | * such actions until after all units have been coldplugged. | |
992 | * | |
993 | * We store Unit* -> int(*)(Unit*). | |
994 | * | |
995 | * https://bugs.freedesktop.org/show_bug.cgi?id=88401 | |
996 | */ | |
997 | _cleanup_hashmap_free_ Hashmap *deferred_work = NULL; | |
998 | int(*proc)(Unit*); | |
999 | ||
a16e1123 | 1000 | assert(m); |
f50e0a01 | 1001 | |
6e392c9c IS |
1002 | deferred_work = hashmap_new(&trivial_hash_ops); |
1003 | if (!deferred_work) | |
1004 | return -ENOMEM; | |
1005 | ||
f50e0a01 LP |
1006 | /* Then, let's set up their initial state. */ |
1007 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
8f8f05a9 | 1008 | int q; |
f50e0a01 LP |
1009 | |
1010 | /* ignore aliases */ | |
ac155bb8 | 1011 | if (u->id != k) |
f50e0a01 LP |
1012 | continue; |
1013 | ||
6e392c9c IS |
1014 | q = unit_coldplug(u, deferred_work); |
1015 | if (q < 0) | |
1016 | r = q; | |
1017 | } | |
1018 | ||
1019 | /* After coldplugging and setting up initial state of the units, | |
1020 | * let's perform operations which spawn jobs or query units' state. */ | |
1021 | HASHMAP_FOREACH_KEY(proc, u, deferred_work, i) { | |
1022 | int q; | |
1023 | ||
1024 | q = proc(u); | |
8f8f05a9 | 1025 | if (q < 0) |
cca098b0 | 1026 | r = q; |
f50e0a01 LP |
1027 | } |
1028 | ||
a16e1123 LP |
1029 | return r; |
1030 | } | |
1031 | ||
fe51822e LP |
1032 | static void manager_build_unit_path_cache(Manager *m) { |
1033 | char **i; | |
807d0cca | 1034 | _cleanup_closedir_ DIR *d = NULL; |
fe51822e LP |
1035 | int r; |
1036 | ||
1037 | assert(m); | |
1038 | ||
1039 | set_free_free(m->unit_path_cache); | |
1040 | ||
d5099efc | 1041 | m->unit_path_cache = set_new(&string_hash_ops); |
874310b7 | 1042 | if (!m->unit_path_cache) { |
fe51822e LP |
1043 | log_error("Failed to allocate unit path cache."); |
1044 | return; | |
1045 | } | |
1046 | ||
1047 | /* This simply builds a list of files we know exist, so that | |
1048 | * we don't always have to go to disk */ | |
1049 | ||
1050 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
1051 | struct dirent *de; | |
1052 | ||
bd0af849 ZJS |
1053 | d = opendir(*i); |
1054 | if (!d) { | |
874310b7 | 1055 | if (errno != ENOENT) |
56f64d95 | 1056 | log_error_errno(errno, "Failed to open directory %s: %m", *i); |
fe51822e LP |
1057 | continue; |
1058 | } | |
1059 | ||
1060 | while ((de = readdir(d))) { | |
1061 | char *p; | |
1062 | ||
a34bf9db | 1063 | if (hidden_file(de->d_name)) |
fe51822e LP |
1064 | continue; |
1065 | ||
b7def684 | 1066 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 1067 | if (!p) { |
fe51822e LP |
1068 | r = -ENOMEM; |
1069 | goto fail; | |
1070 | } | |
1071 | ||
ef42202a ZJS |
1072 | r = set_consume(m->unit_path_cache, p); |
1073 | if (r < 0) | |
fe51822e | 1074 | goto fail; |
fe51822e LP |
1075 | } |
1076 | ||
1077 | closedir(d); | |
1078 | d = NULL; | |
1079 | } | |
1080 | ||
1081 | return; | |
1082 | ||
1083 | fail: | |
da927ba9 | 1084 | log_error_errno(r, "Failed to build unit path cache: %m"); |
fe51822e LP |
1085 | |
1086 | set_free_free(m->unit_path_cache); | |
1087 | m->unit_path_cache = NULL; | |
fe51822e LP |
1088 | } |
1089 | ||
9588bc32 LP |
1090 | |
1091 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
1092 | Unit *u; | |
1093 | Iterator i; | |
1094 | int r; | |
1095 | ||
1096 | assert(m); | |
1097 | ||
1098 | HASHMAP_FOREACH(u, m->units, i) { | |
1099 | ||
1100 | if (fdset_size(fds) <= 0) | |
1101 | break; | |
1102 | ||
1103 | if (UNIT_VTABLE(u)->distribute_fds) { | |
1104 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
1105 | if (r < 0) | |
1106 | return r; | |
1107 | } | |
1108 | } | |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
a16e1123 LP |
1113 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
1114 | int r, q; | |
1115 | ||
1116 | assert(m); | |
1117 | ||
518d10e9 | 1118 | dual_timestamp_get(&m->generators_start_timestamp); |
e801700e | 1119 | r = manager_run_generators(m); |
518d10e9 | 1120 | dual_timestamp_get(&m->generators_finish_timestamp); |
e801700e ZJS |
1121 | if (r < 0) |
1122 | return r; | |
5a1e9937 | 1123 | |
07719a21 LP |
1124 | r = lookup_paths_init( |
1125 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 1126 | NULL, |
07719a21 LP |
1127 | m->generator_unit_path, |
1128 | m->generator_unit_path_early, | |
1129 | m->generator_unit_path_late); | |
1130 | if (r < 0) | |
1131 | return r; | |
1132 | ||
fe51822e LP |
1133 | manager_build_unit_path_cache(m); |
1134 | ||
9f611ad8 LP |
1135 | /* If we will deserialize make sure that during enumeration |
1136 | * this is already known, so we increase the counter here | |
1137 | * already */ | |
1138 | if (serialization) | |
a7556052 | 1139 | m->n_reloading ++; |
9f611ad8 | 1140 | |
a16e1123 | 1141 | /* First, enumerate what we can from all config files */ |
718db961 | 1142 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 1143 | r = manager_enumerate(m); |
718db961 | 1144 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
1145 | |
1146 | /* Second, deserialize if there is something to deserialize */ | |
1cd974ed ZJS |
1147 | if (serialization) |
1148 | r = manager_deserialize(m, serialization, fds); | |
a16e1123 | 1149 | |
01e10de3 LP |
1150 | /* Any fds left? Find some unit which wants them. This is |
1151 | * useful to allow container managers to pass some file | |
1152 | * descriptors to us pre-initialized. This enables | |
1153 | * socket-based activation of entire containers. */ | |
1154 | if (fdset_size(fds) > 0) { | |
1155 | q = manager_distribute_fds(m, fds); | |
1cd974ed | 1156 | if (q < 0 && r == 0) |
01e10de3 LP |
1157 | r = q; |
1158 | } | |
1159 | ||
d86f9d52 LP |
1160 | /* We might have deserialized the notify fd, but if we didn't |
1161 | * then let's create the bus now */ | |
1cd974ed ZJS |
1162 | q = manager_setup_notify(m); |
1163 | if (q < 0 && r == 0) | |
1164 | r = q; | |
d86f9d52 | 1165 | |
e3dd987c LP |
1166 | /* We might have deserialized the kdbus control fd, but if we |
1167 | * didn't, then let's create the bus now. */ | |
1168 | manager_setup_kdbus(m); | |
1169 | manager_connect_bus(m, !!serialization); | |
8f8f05a9 | 1170 | bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed); |
e3dd987c | 1171 | |
a16e1123 | 1172 | /* Third, fire things up! */ |
07719a21 | 1173 | q = manager_coldplug(m); |
1cd974ed | 1174 | if (q < 0 && r == 0) |
a16e1123 LP |
1175 | r = q; |
1176 | ||
9f611ad8 | 1177 | if (serialization) { |
a7556052 LP |
1178 | assert(m->n_reloading > 0); |
1179 | m->n_reloading --; | |
71445ae7 LP |
1180 | |
1181 | /* Let's wait for the UnitNew/JobNew messages being | |
1182 | * sent, before we notify that the reload is | |
1183 | * finished */ | |
1184 | m->send_reloading_done = true; | |
9f611ad8 LP |
1185 | } |
1186 | ||
a16e1123 | 1187 | return r; |
f50e0a01 LP |
1188 | } |
1189 | ||
718db961 | 1190 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 1191 | int r; |
7527cb52 | 1192 | Transaction *tr; |
e5b5ae50 LP |
1193 | |
1194 | assert(m); | |
1195 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1196 | assert(unit); |
e5b5ae50 | 1197 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1198 | |
7358dc02 ZJS |
1199 | if (mode == JOB_ISOLATE && type != JOB_START) |
1200 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); | |
c497c7a9 | 1201 | |
7358dc02 ZJS |
1202 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
1203 | return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); | |
2528a7a6 | 1204 | |
79008bdd | 1205 | log_unit_debug(unit->id, |
66870f90 ZJS |
1206 | "Trying to enqueue job %s/%s/%s", unit->id, |
1207 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 1208 | |
e0209d83 MS |
1209 | job_type_collapse(&type, unit); |
1210 | ||
23ade460 | 1211 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1212 | if (!tr) |
1213 | return -ENOMEM; | |
11dd41ce | 1214 | |
7527cb52 MS |
1215 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
1216 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 1217 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
1218 | if (r < 0) |
1219 | goto tr_abort; | |
c497c7a9 | 1220 | |
7527cb52 MS |
1221 | if (mode == JOB_ISOLATE) { |
1222 | r = transaction_add_isolate_jobs(tr, m); | |
1223 | if (r < 0) | |
1224 | goto tr_abort; | |
1225 | } | |
1226 | ||
1227 | r = transaction_activate(tr, m, mode, e); | |
1228 | if (r < 0) | |
1229 | goto tr_abort; | |
e5b5ae50 | 1230 | |
79008bdd | 1231 | log_unit_debug(unit->id, |
66870f90 ZJS |
1232 | "Enqueued job %s/%s as %u", unit->id, |
1233 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1234 | |
e5b5ae50 | 1235 | if (_ret) |
b94fbd30 | 1236 | *_ret = tr->anchor_job; |
60918275 | 1237 | |
7527cb52 | 1238 | transaction_free(tr); |
e5b5ae50 | 1239 | return 0; |
7527cb52 MS |
1240 | |
1241 | tr_abort: | |
1242 | transaction_abort(tr); | |
1243 | transaction_free(tr); | |
1244 | return r; | |
e5b5ae50 | 1245 | } |
60918275 | 1246 | |
718db961 | 1247 | 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 |
1248 | Unit *unit; |
1249 | int r; | |
1250 | ||
1251 | assert(m); | |
1252 | assert(type < _JOB_TYPE_MAX); | |
1253 | assert(name); | |
1254 | assert(mode < _JOB_MODE_MAX); | |
1255 | ||
c3090674 LP |
1256 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1257 | if (r < 0) | |
28247076 LP |
1258 | return r; |
1259 | ||
398ef8ba | 1260 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1261 | } |
1262 | ||
60918275 LP |
1263 | Job *manager_get_job(Manager *m, uint32_t id) { |
1264 | assert(m); | |
1265 | ||
1266 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1267 | } | |
1268 | ||
87f0e418 | 1269 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1270 | assert(m); |
1271 | assert(name); | |
1272 | ||
87f0e418 | 1273 | return hashmap_get(m->units, name); |
60918275 LP |
1274 | } |
1275 | ||
c1e1601e | 1276 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1277 | Unit *u; |
c1e1601e | 1278 | unsigned n = 0; |
60918275 LP |
1279 | |
1280 | assert(m); | |
1281 | ||
223dabab LP |
1282 | /* Make sure we are not run recursively */ |
1283 | if (m->dispatching_load_queue) | |
c1e1601e | 1284 | return 0; |
223dabab LP |
1285 | |
1286 | m->dispatching_load_queue = true; | |
1287 | ||
87f0e418 | 1288 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1289 | * tries to load its data until the queue is empty */ |
1290 | ||
595ed347 MS |
1291 | while ((u = m->load_queue)) { |
1292 | assert(u->in_load_queue); | |
034c6ed7 | 1293 | |
595ed347 | 1294 | unit_load(u); |
c1e1601e | 1295 | n++; |
60918275 LP |
1296 | } |
1297 | ||
223dabab | 1298 | m->dispatching_load_queue = false; |
c1e1601e | 1299 | return n; |
60918275 LP |
1300 | } |
1301 | ||
c2756a68 LP |
1302 | int manager_load_unit_prepare( |
1303 | Manager *m, | |
1304 | const char *name, | |
1305 | const char *path, | |
718db961 | 1306 | sd_bus_error *e, |
c2756a68 LP |
1307 | Unit **_ret) { |
1308 | ||
87f0e418 | 1309 | Unit *ret; |
7d17cfbc | 1310 | UnitType t; |
60918275 LP |
1311 | int r; |
1312 | ||
1313 | assert(m); | |
9e2f7c11 | 1314 | assert(name || path); |
60918275 | 1315 | |
db06e3b6 LP |
1316 | /* This will prepare the unit for loading, but not actually |
1317 | * load anything from disk. */ | |
0301abf4 | 1318 | |
718db961 LP |
1319 | if (path && !is_path(path)) |
1320 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1321 | |
1322 | if (!name) | |
2b6bf07d | 1323 | name = basename(path); |
9e2f7c11 | 1324 | |
7d17cfbc MS |
1325 | t = unit_name_to_type(name); |
1326 | ||
f78e6385 | 1327 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID)) |
718db961 | 1328 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
60918275 | 1329 | |
7d17cfbc MS |
1330 | ret = manager_get_unit(m, name); |
1331 | if (ret) { | |
034c6ed7 | 1332 | *_ret = ret; |
413d6313 | 1333 | return 1; |
034c6ed7 | 1334 | } |
60918275 | 1335 | |
7d17cfbc MS |
1336 | ret = unit_new(m, unit_vtable[t]->object_size); |
1337 | if (!ret) | |
60918275 LP |
1338 | return -ENOMEM; |
1339 | ||
7d17cfbc | 1340 | if (path) { |
ac155bb8 MS |
1341 | ret->fragment_path = strdup(path); |
1342 | if (!ret->fragment_path) { | |
0301abf4 LP |
1343 | unit_free(ret); |
1344 | return -ENOMEM; | |
1345 | } | |
7d17cfbc | 1346 | } |
0301abf4 | 1347 | |
1058cbf2 ZJS |
1348 | r = unit_add_name(ret, name); |
1349 | if (r < 0) { | |
87f0e418 | 1350 | unit_free(ret); |
1ffba6fe | 1351 | return r; |
60918275 LP |
1352 | } |
1353 | ||
87f0e418 | 1354 | unit_add_to_load_queue(ret); |
c1e1601e | 1355 | unit_add_to_dbus_queue(ret); |
949061f0 | 1356 | unit_add_to_gc_queue(ret); |
c1e1601e | 1357 | |
db06e3b6 LP |
1358 | if (_ret) |
1359 | *_ret = ret; | |
1360 | ||
1361 | return 0; | |
1362 | } | |
1363 | ||
c2756a68 LP |
1364 | int manager_load_unit( |
1365 | Manager *m, | |
1366 | const char *name, | |
1367 | const char *path, | |
718db961 | 1368 | sd_bus_error *e, |
c2756a68 LP |
1369 | Unit **_ret) { |
1370 | ||
db06e3b6 LP |
1371 | int r; |
1372 | ||
1373 | assert(m); | |
1374 | ||
1375 | /* This will load the service information files, but not actually | |
1376 | * start any services or anything. */ | |
1377 | ||
c3090674 LP |
1378 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1379 | if (r != 0) | |
db06e3b6 LP |
1380 | return r; |
1381 | ||
f50e0a01 | 1382 | manager_dispatch_load_queue(m); |
60918275 | 1383 | |
9e2f7c11 | 1384 | if (_ret) |
413d6313 | 1385 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1386 | |
60918275 LP |
1387 | return 0; |
1388 | } | |
a66d02c3 | 1389 | |
cea8e32e | 1390 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1391 | Iterator i; |
a66d02c3 LP |
1392 | Job *j; |
1393 | ||
1394 | assert(s); | |
1395 | assert(f); | |
1396 | ||
034c6ed7 | 1397 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1398 | job_dump(j, f, prefix); |
a66d02c3 LP |
1399 | } |
1400 | ||
87f0e418 | 1401 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1402 | Iterator i; |
87f0e418 | 1403 | Unit *u; |
11dd41ce | 1404 | const char *t; |
a66d02c3 LP |
1405 | |
1406 | assert(s); | |
1407 | assert(f); | |
1408 | ||
87f0e418 | 1409 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1410 | if (u->id == t) |
87f0e418 | 1411 | unit_dump(u, f, prefix); |
a66d02c3 | 1412 | } |
7fad411c LP |
1413 | |
1414 | void manager_clear_jobs(Manager *m) { | |
1415 | Job *j; | |
1416 | ||
1417 | assert(m); | |
1418 | ||
7fad411c | 1419 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1420 | /* No need to recurse. We're cancelling all jobs. */ |
1421 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1422 | } |
83c60c9f | 1423 | |
752b5905 LP |
1424 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1425 | Manager *m = userdata; | |
83c60c9f | 1426 | Job *j; |
034c6ed7 | 1427 | |
752b5905 LP |
1428 | assert(source); |
1429 | assert(m); | |
9152c765 | 1430 | |
034c6ed7 | 1431 | while ((j = m->run_queue)) { |
ac1135be | 1432 | assert(j->installed); |
034c6ed7 LP |
1433 | assert(j->in_run_queue); |
1434 | ||
1435 | job_run_and_invalidate(j); | |
9152c765 | 1436 | } |
034c6ed7 | 1437 | |
a0b64226 | 1438 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1439 | manager_watch_jobs_in_progress(m); |
1440 | ||
31a7eb86 ZJS |
1441 | if (m->n_on_console > 0) |
1442 | manager_watch_idle_pipe(m); | |
1443 | ||
752b5905 | 1444 | return 1; |
c1e1601e LP |
1445 | } |
1446 | ||
9588bc32 | 1447 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1448 | Job *j; |
595ed347 | 1449 | Unit *u; |
c1e1601e LP |
1450 | unsigned n = 0; |
1451 | ||
1452 | assert(m); | |
1453 | ||
1454 | if (m->dispatching_dbus_queue) | |
1455 | return 0; | |
1456 | ||
1457 | m->dispatching_dbus_queue = true; | |
1458 | ||
595ed347 MS |
1459 | while ((u = m->dbus_unit_queue)) { |
1460 | assert(u->in_dbus_queue); | |
c1e1601e | 1461 | |
595ed347 | 1462 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1463 | n++; |
1464 | } | |
1465 | ||
1466 | while ((j = m->dbus_job_queue)) { | |
1467 | assert(j->in_dbus_queue); | |
1468 | ||
1469 | bus_job_send_change_signal(j); | |
1470 | n++; | |
1471 | } | |
1472 | ||
1473 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1474 | |
1475 | if (m->send_reloading_done) { | |
1476 | m->send_reloading_done = false; | |
1477 | ||
718db961 | 1478 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1479 | } |
1480 | ||
718db961 LP |
1481 | if (m->queued_message) |
1482 | bus_send_queued_message(m); | |
1483 | ||
c1e1601e | 1484 | return n; |
9152c765 LP |
1485 | } |
1486 | ||
a354329f | 1487 | static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n, FDSet *fds) { |
5ba6985b LP |
1488 | _cleanup_strv_free_ char **tags = NULL; |
1489 | ||
1490 | assert(m); | |
1491 | assert(u); | |
1492 | assert(buf); | |
1493 | assert(n > 0); | |
1494 | ||
1495 | tags = strv_split(buf, "\n\r"); | |
1496 | if (!tags) { | |
1497 | log_oom(); | |
1498 | return; | |
1499 | } | |
1500 | ||
79008bdd | 1501 | log_unit_debug(u->id, "Got notification message for unit %s", u->id); |
5ba6985b LP |
1502 | |
1503 | if (UNIT_VTABLE(u)->notify_message) | |
a354329f | 1504 | UNIT_VTABLE(u)->notify_message(u, pid, tags, fds); |
5ba6985b LP |
1505 | } |
1506 | ||
718db961 LP |
1507 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1508 | Manager *m = userdata; | |
8c47c732 | 1509 | ssize_t n; |
a354329f | 1510 | int r; |
8c47c732 LP |
1511 | |
1512 | assert(m); | |
718db961 LP |
1513 | assert(m->notify_fd == fd); |
1514 | ||
1515 | if (revents != EPOLLIN) { | |
1516 | log_warning("Got unexpected poll event for notify fd."); | |
1517 | return 0; | |
1518 | } | |
8c47c732 LP |
1519 | |
1520 | for (;;) { | |
a354329f LP |
1521 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1522 | char buf[NOTIFY_BUFFER_MAX+1]; | |
b92bea5d ZJS |
1523 | struct iovec iovec = { |
1524 | .iov_base = buf, | |
1525 | .iov_len = sizeof(buf)-1, | |
1526 | }; | |
8c47c732 LP |
1527 | union { |
1528 | struct cmsghdr cmsghdr; | |
a354329f LP |
1529 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + |
1530 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
b92bea5d | 1531 | } control = {}; |
b92bea5d ZJS |
1532 | struct msghdr msghdr = { |
1533 | .msg_iov = &iovec, | |
1534 | .msg_iovlen = 1, | |
1535 | .msg_control = &control, | |
1536 | .msg_controllen = sizeof(control), | |
1537 | }; | |
a354329f LP |
1538 | struct cmsghdr *cmsg; |
1539 | struct ucred *ucred = NULL; | |
1540 | bool found = false; | |
70af4d17 | 1541 | Unit *u1, *u2, *u3; |
a354329f LP |
1542 | int *fd_array = NULL; |
1543 | unsigned n_fds = 0; | |
8c47c732 | 1544 | |
a354329f LP |
1545 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1546 | if (n < 0) { | |
f6144808 | 1547 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1548 | break; |
1549 | ||
1550 | return -errno; | |
1551 | } | |
a354329f LP |
1552 | |
1553 | for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) { | |
1554 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { | |
1555 | ||
1556 | fd_array = (int*) CMSG_DATA(cmsg); | |
1557 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
1558 | ||
1559 | } else if (cmsg->cmsg_level == SOL_SOCKET && | |
1560 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1561 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
1562 | ||
1563 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | if (n_fds > 0) { | |
1568 | assert(fd_array); | |
1569 | ||
1570 | r = fdset_new_array(&fds, fd_array, n_fds); | |
1571 | if (r < 0) { | |
1572 | close_many(fd_array, n_fds); | |
1573 | return log_oom(); | |
1574 | } | |
1575 | } | |
8c47c732 | 1576 | |
a354329f LP |
1577 | if (!ucred || ucred->pid <= 0) { |
1578 | log_warning("Received notify message without valid credentials. Ignoring."); | |
8c47c732 LP |
1579 | continue; |
1580 | } | |
1581 | ||
a354329f LP |
1582 | if ((size_t) n >= sizeof(buf)) { |
1583 | log_warning("Received notify message exceeded maximum size. Ignoring."); | |
1584 | continue; | |
1585 | } | |
8c47c732 | 1586 | |
8c40acf7 | 1587 | buf[n] = 0; |
8c47c732 | 1588 | |
70af4d17 LP |
1589 | /* Notify every unit that might be interested, but try |
1590 | * to avoid notifying the same one multiple times. */ | |
1591 | u1 = manager_get_unit_by_pid(m, ucred->pid); | |
1592 | if (u1) { | |
a354329f | 1593 | manager_invoke_notify_message(m, u1, ucred->pid, buf, n, fds); |
5ba6985b LP |
1594 | found = true; |
1595 | } | |
1596 | ||
70af4d17 LP |
1597 | u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); |
1598 | if (u2 && u2 != u1) { | |
a354329f | 1599 | manager_invoke_notify_message(m, u2, ucred->pid, buf, n, fds); |
5ba6985b LP |
1600 | found = true; |
1601 | } | |
1602 | ||
70af4d17 LP |
1603 | u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); |
1604 | if (u3 && u3 != u2 && u3 != u1) { | |
a354329f | 1605 | manager_invoke_notify_message(m, u3, ucred->pid, buf, n, fds); |
5ba6985b LP |
1606 | found = true; |
1607 | } | |
8c47c732 | 1608 | |
5ba6985b LP |
1609 | if (!found) |
1610 | log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid); | |
a354329f LP |
1611 | |
1612 | if (fdset_size(fds) > 0) | |
1613 | log_warning("Got auxiliary fds with notification message, closing all."); | |
8c47c732 LP |
1614 | } |
1615 | ||
1616 | return 0; | |
1617 | } | |
1618 | ||
5ba6985b LP |
1619 | static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) { |
1620 | assert(m); | |
1621 | assert(u); | |
1622 | assert(si); | |
1623 | ||
79008bdd | 1624 | log_unit_debug(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id); |
5ba6985b LP |
1625 | |
1626 | unit_unwatch_pid(u, si->si_pid); | |
1627 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
1628 | } | |
1629 | ||
034c6ed7 | 1630 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1631 | assert(m); |
1632 | ||
1633 | for (;;) { | |
b92bea5d | 1634 | siginfo_t si = {}; |
9152c765 | 1635 | |
4112df16 LP |
1636 | /* First we call waitd() for a PID and do not reap the |
1637 | * zombie. That way we can still access /proc/$PID for | |
1638 | * it while it is a zombie. */ | |
1639 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1640 | |
1641 | if (errno == ECHILD) | |
1642 | break; | |
1643 | ||
4112df16 LP |
1644 | if (errno == EINTR) |
1645 | continue; | |
1646 | ||
9152c765 | 1647 | return -errno; |
acbb0225 | 1648 | } |
9152c765 | 1649 | |
4112df16 | 1650 | if (si.si_pid <= 0) |
9152c765 LP |
1651 | break; |
1652 | ||
15d5d9d9 | 1653 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1654 | _cleanup_free_ char *name = NULL; |
70af4d17 | 1655 | Unit *u1, *u2, *u3; |
4112df16 | 1656 | |
87d2c1ff | 1657 | get_process_comm(si.si_pid, &name); |
4112df16 | 1658 | |
5ba6985b LP |
1659 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", |
1660 | si.si_pid, strna(name), | |
1661 | sigchld_code_to_string(si.si_code), | |
1662 | si.si_status, | |
1663 | strna(si.si_code == CLD_EXITED | |
1664 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1665 | : signal_to_string(si.si_status))); | |
1666 | ||
1667 | /* And now figure out the unit this belongs | |
1668 | * to, it might be multiple... */ | |
70af4d17 LP |
1669 | u1 = manager_get_unit_by_pid(m, si.si_pid); |
1670 | if (u1) | |
1671 | invoke_sigchld_event(m, u1, &si); | |
1672 | u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); | |
1673 | if (u2 && u2 != u1) | |
1674 | invoke_sigchld_event(m, u2, &si); | |
1675 | u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); | |
1676 | if (u3 && u3 != u2 && u3 != u1) | |
1677 | invoke_sigchld_event(m, u3, &si); | |
5ba6985b | 1678 | } |
8c47c732 | 1679 | |
4112df16 LP |
1680 | /* And now, we actually reap the zombie. */ |
1681 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1682 | if (errno == EINTR) | |
1683 | continue; | |
1684 | ||
1685 | return -errno; | |
1686 | } | |
9152c765 LP |
1687 | } |
1688 | ||
1689 | return 0; | |
1690 | } | |
1691 | ||
7d793605 | 1692 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1693 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1694 | int r; |
398ef8ba | 1695 | |
79008bdd | 1696 | log_unit_debug(name, "Activating special unit %s", name); |
1e001f52 | 1697 | |
bd0af849 ZJS |
1698 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1699 | if (r < 0) | |
79008bdd | 1700 | log_unit_error(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1701 | |
1702 | return r; | |
28247076 LP |
1703 | } |
1704 | ||
718db961 LP |
1705 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1706 | Manager *m = userdata; | |
9152c765 LP |
1707 | ssize_t n; |
1708 | struct signalfd_siginfo sfsi; | |
1709 | bool sigchld = false; | |
1710 | ||
1711 | assert(m); | |
718db961 LP |
1712 | assert(m->signal_fd == fd); |
1713 | ||
1714 | if (revents != EPOLLIN) { | |
1715 | log_warning("Got unexpected events from signal file descriptor."); | |
1716 | return 0; | |
1717 | } | |
9152c765 LP |
1718 | |
1719 | for (;;) { | |
718db961 | 1720 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1721 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1722 | |
1723 | if (n >= 0) | |
1724 | return -EIO; | |
1725 | ||
63090775 | 1726 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1727 | break; |
9152c765 LP |
1728 | |
1729 | return -errno; | |
1730 | } | |
1731 | ||
4daf54a8 ZJS |
1732 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
1733 | (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER) | |
1734 | ? LOG_DEBUG : LOG_INFO, | |
1735 | &sfsi); | |
1e001f52 | 1736 | |
b9cd2ec1 LP |
1737 | switch (sfsi.ssi_signo) { |
1738 | ||
4112df16 | 1739 | case SIGCHLD: |
9152c765 | 1740 | sigchld = true; |
b9cd2ec1 LP |
1741 | break; |
1742 | ||
6632c602 | 1743 | case SIGTERM: |
67445f4e | 1744 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1745 | /* This is for compatibility with the |
1746 | * original sysvinit */ | |
e11dc4a2 | 1747 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1748 | break; |
1749 | } | |
84e9af1e | 1750 | |
a1b256b0 | 1751 | /* Fall through */ |
e11dc4a2 LP |
1752 | |
1753 | case SIGINT: | |
67445f4e | 1754 | if (m->running_as == SYSTEMD_SYSTEM) { |
2e5c94b9 | 1755 | |
d1f6b1b4 LP |
1756 | /* If the user presses C-A-D more than |
1757 | * 7 times within 2s, we reboot | |
2e5c94b9 LP |
1758 | * immediately. */ |
1759 | ||
1760 | if (ratelimit_test(&m->ctrl_alt_del_ratelimit)) | |
1761 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); | |
1762 | else { | |
1763 | log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); | |
a626df3e | 1764 | status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately."); |
2e5c94b9 LP |
1765 | m->exit_code = MANAGER_REBOOT; |
1766 | } | |
1767 | ||
84e9af1e LP |
1768 | break; |
1769 | } | |
1770 | ||
a1b256b0 | 1771 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1772 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1773 | m->exit_code = MANAGER_EXIT; |
1774 | return 0; | |
1775 | } | |
1776 | ||
1777 | break; | |
84e9af1e | 1778 | |
28247076 | 1779 | case SIGWINCH: |
67445f4e | 1780 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1781 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1782 | |
28247076 LP |
1783 | /* This is a nop on non-init */ |
1784 | break; | |
84e9af1e | 1785 | |
28247076 | 1786 | case SIGPWR: |
67445f4e | 1787 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1788 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1789 | |
28247076 | 1790 | /* This is a nop on non-init */ |
84e9af1e | 1791 | break; |
6632c602 | 1792 | |
1005d14f | 1793 | case SIGUSR1: { |
57ee42ce LP |
1794 | Unit *u; |
1795 | ||
1796 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1797 | ||
1798 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1799 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1800 | bus_init(m, true); |
57ee42ce LP |
1801 | } |
1802 | ||
1803 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1804 | log_info("Loading D-Bus service..."); | |
7d793605 | 1805 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1806 | } |
1807 | ||
1808 | break; | |
1809 | } | |
1810 | ||
2149e37c | 1811 | case SIGUSR2: { |
718db961 LP |
1812 | _cleanup_free_ char *dump = NULL; |
1813 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1814 | size_t size; |
1815 | ||
718db961 LP |
1816 | f = open_memstream(&dump, &size); |
1817 | if (!f) { | |
2149e37c LP |
1818 | log_warning("Failed to allocate memory stream."); |
1819 | break; | |
1820 | } | |
1821 | ||
1822 | manager_dump_units(m, f, "\t"); | |
1823 | manager_dump_jobs(m, f, "\t"); | |
1824 | ||
1825 | if (ferror(f)) { | |
2149e37c LP |
1826 | log_warning("Failed to write status stream"); |
1827 | break; | |
1828 | } | |
1829 | ||
b2cdc666 DM |
1830 | if (fflush(f)) { |
1831 | log_warning("Failed to flush status stream"); | |
1832 | break; | |
1833 | } | |
1834 | ||
2149e37c | 1835 | log_dump(LOG_INFO, dump); |
1005d14f | 1836 | break; |
2149e37c | 1837 | } |
1005d14f | 1838 | |
a16e1123 LP |
1839 | case SIGHUP: |
1840 | m->exit_code = MANAGER_RELOAD; | |
1841 | break; | |
1842 | ||
7d793605 | 1843 | default: { |
253ee27a | 1844 | |
0003d1ab LP |
1845 | /* Starting SIGRTMIN+0 */ |
1846 | static const char * const target_table[] = { | |
7d793605 LP |
1847 | [0] = SPECIAL_DEFAULT_TARGET, |
1848 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1849 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1850 | [3] = SPECIAL_HALT_TARGET, |
1851 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1852 | [5] = SPECIAL_REBOOT_TARGET, |
1853 | [6] = SPECIAL_KEXEC_TARGET | |
1854 | }; | |
1855 | ||
1856 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1857 | static const ManagerExitCode code_table[] = { | |
1858 | [0] = MANAGER_HALT, | |
1859 | [1] = MANAGER_POWEROFF, | |
1860 | [2] = MANAGER_REBOOT, | |
1861 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1862 | }; |
1863 | ||
1864 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1865 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1866 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1867 | manager_start_target(m, target_table[idx], | |
1868 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1869 | break; |
1870 | } | |
1871 | ||
0003d1ab LP |
1872 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1873 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1874 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1875 | break; | |
1876 | } | |
1877 | ||
0658666b LP |
1878 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1879 | ||
1880 | case 20: | |
1881 | log_debug("Enabling showing of status."); | |
d450b6f2 | 1882 | manager_set_show_status(m, SHOW_STATUS_YES); |
0658666b LP |
1883 | break; |
1884 | ||
1885 | case 21: | |
1886 | log_debug("Disabling showing of status."); | |
d450b6f2 | 1887 | manager_set_show_status(m, SHOW_STATUS_NO); |
0658666b LP |
1888 | break; |
1889 | ||
253ee27a LP |
1890 | case 22: |
1891 | log_set_max_level(LOG_DEBUG); | |
1892 | log_notice("Setting log level to debug."); | |
1893 | break; | |
1894 | ||
1895 | case 23: | |
1896 | log_set_max_level(LOG_INFO); | |
1897 | log_notice("Setting log level to info."); | |
1898 | break; | |
1899 | ||
600b704e LP |
1900 | case 24: |
1901 | if (m->running_as == SYSTEMD_USER) { | |
1902 | m->exit_code = MANAGER_EXIT; | |
1903 | return 0; | |
1904 | } | |
1905 | ||
1906 | /* This is a nop on init */ | |
1907 | break; | |
1908 | ||
4cfa2c99 | 1909 | case 26: |
c1dc6153 | 1910 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ |
4cfa2c99 LP |
1911 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
1912 | log_notice("Setting log target to journal-or-kmsg."); | |
1913 | break; | |
1914 | ||
253ee27a LP |
1915 | case 27: |
1916 | log_set_target(LOG_TARGET_CONSOLE); | |
1917 | log_notice("Setting log target to console."); | |
1918 | break; | |
1919 | ||
1920 | case 28: | |
1921 | log_set_target(LOG_TARGET_KMSG); | |
1922 | log_notice("Setting log target to kmsg."); | |
1923 | break; | |
1924 | ||
0658666b | 1925 | default: |
4e240ab0 | 1926 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1927 | } |
b9cd2ec1 | 1928 | } |
7d793605 | 1929 | } |
9152c765 LP |
1930 | } |
1931 | ||
1932 | if (sigchld) | |
7b77ed8c | 1933 | manager_dispatch_sigchld(m); |
034c6ed7 LP |
1934 | |
1935 | return 0; | |
1936 | } | |
1937 | ||
718db961 LP |
1938 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1939 | Manager *m = userdata; | |
1940 | Iterator i; | |
1941 | Unit *u; | |
034c6ed7 LP |
1942 | |
1943 | assert(m); | |
718db961 | 1944 | assert(m->time_change_fd == fd); |
034c6ed7 | 1945 | |
718db961 | 1946 | log_struct(LOG_INFO, |
e2cc6eca LP |
1947 | LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), |
1948 | LOG_MESSAGE("Time has been changed"), | |
718db961 | 1949 | NULL); |
034c6ed7 | 1950 | |
718db961 LP |
1951 | /* Restart the watch */ |
1952 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
03e334a1 | 1953 | m->time_change_fd = safe_close(m->time_change_fd); |
ef734fd6 | 1954 | |
718db961 | 1955 | manager_setup_time_change(m); |
4e434314 | 1956 | |
718db961 LP |
1957 | HASHMAP_FOREACH(u, m->units, i) |
1958 | if (UNIT_VTABLE(u)->time_change) | |
1959 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1960 | |
718db961 LP |
1961 | return 0; |
1962 | } | |
ea430986 | 1963 | |
718db961 LP |
1964 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1965 | Manager *m = userdata; | |
8742514c | 1966 | |
718db961 LP |
1967 | assert(m); |
1968 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1969 | |
718db961 | 1970 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1971 | |
718db961 LP |
1972 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1973 | manager_close_idle_pipe(m); | |
03b717a3 | 1974 | |
718db961 LP |
1975 | return 0; |
1976 | } | |
31a7eb86 | 1977 | |
718db961 LP |
1978 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1979 | Manager *m = userdata; | |
fd08a840 ZJS |
1980 | int r; |
1981 | uint64_t next; | |
31a7eb86 | 1982 | |
718db961 | 1983 | assert(m); |
fd08a840 | 1984 | assert(source); |
9152c765 | 1985 | |
718db961 | 1986 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
1987 | |
1988 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
1989 | r = sd_event_source_set_time(source, next); | |
1990 | if (r < 0) | |
1991 | return r; | |
1992 | ||
1993 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
1994 | } |
1995 | ||
1996 | int manager_loop(Manager *m) { | |
1997 | int r; | |
9152c765 | 1998 | |
fac9f8df | 1999 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 2000 | |
9152c765 | 2001 | assert(m); |
f755e3b7 | 2002 | m->exit_code = MANAGER_OK; |
9152c765 | 2003 | |
fe51822e LP |
2004 | /* Release the path cache */ |
2005 | set_free_free(m->unit_path_cache); | |
2006 | m->unit_path_cache = NULL; | |
2007 | ||
b0c918b9 LP |
2008 | manager_check_finished(m); |
2009 | ||
a4312405 | 2010 | /* There might still be some zombies hanging around from |
f3669545 | 2011 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
2012 | r = manager_dispatch_sigchld(m); |
2013 | if (r < 0) | |
a4312405 LP |
2014 | return r; |
2015 | ||
f755e3b7 | 2016 | while (m->exit_code == MANAGER_OK) { |
718db961 | 2017 | usec_t wait_usec; |
9152c765 | 2018 | |
67445f4e | 2019 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
2020 | watchdog_ping(); |
2021 | ||
ea430986 LP |
2022 | if (!ratelimit_test(&rl)) { |
2023 | /* Yay, something is going seriously wrong, pause a little */ | |
2024 | log_warning("Looping too fast. Throttling execution a little."); | |
2025 | sleep(1); | |
e96d6be7 | 2026 | continue; |
ea430986 LP |
2027 | } |
2028 | ||
37a8e683 | 2029 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
2030 | continue; |
2031 | ||
cf1265e1 | 2032 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
2033 | continue; |
2034 | ||
cf1265e1 | 2035 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 2036 | continue; |
034c6ed7 | 2037 | |
cf1265e1 | 2038 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
2039 | continue; |
2040 | ||
c1e1601e | 2041 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 2042 | continue; |
ea430986 | 2043 | |
c757a65b | 2044 | /* Sleep for half the watchdog time */ |
67445f4e | 2045 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
2046 | wait_usec = m->runtime_watchdog / 2; |
2047 | if (wait_usec <= 0) | |
2048 | wait_usec = 1; | |
c757a65b | 2049 | } else |
3a43da28 | 2050 | wait_usec = USEC_INFINITY; |
9152c765 | 2051 | |
718db961 | 2052 | r = sd_event_run(m->event, wait_usec); |
23bbb0de MS |
2053 | if (r < 0) |
2054 | return log_error_errno(r, "Failed to run event loop: %m"); | |
a16e1123 | 2055 | } |
957ca890 | 2056 | |
a16e1123 | 2057 | return m->exit_code; |
83c60c9f | 2058 | } |
ea430986 | 2059 | |
718db961 | 2060 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 2061 | _cleanup_free_ char *n = NULL; |
ea430986 | 2062 | Unit *u; |
80fbf05e | 2063 | int r; |
ea430986 LP |
2064 | |
2065 | assert(m); | |
2066 | assert(s); | |
2067 | assert(_u); | |
2068 | ||
ede3a796 LP |
2069 | r = unit_name_from_dbus_path(s, &n); |
2070 | if (r < 0) | |
2071 | return r; | |
ea430986 | 2072 | |
80fbf05e | 2073 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
2074 | if (r < 0) |
2075 | return r; | |
ea430986 LP |
2076 | |
2077 | *_u = u; | |
2078 | ||
2079 | return 0; | |
2080 | } | |
86fbf370 LP |
2081 | |
2082 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 2083 | const char *p; |
86fbf370 | 2084 | unsigned id; |
718db961 | 2085 | Job *j; |
86fbf370 LP |
2086 | int r; |
2087 | ||
2088 | assert(m); | |
2089 | assert(s); | |
2090 | assert(_j); | |
2091 | ||
718db961 LP |
2092 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
2093 | if (!p) | |
86fbf370 LP |
2094 | return -EINVAL; |
2095 | ||
718db961 | 2096 | r = safe_atou(p, &id); |
8742514c | 2097 | if (r < 0) |
86fbf370 LP |
2098 | return r; |
2099 | ||
8742514c LP |
2100 | j = manager_get_job(m, id); |
2101 | if (!j) | |
86fbf370 LP |
2102 | return -ENOENT; |
2103 | ||
2104 | *_j = j; | |
2105 | ||
2106 | return 0; | |
2107 | } | |
dfcd764e | 2108 | |
4927fcae | 2109 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 2110 | |
4927fcae | 2111 | #ifdef HAVE_AUDIT |
2ba11090 | 2112 | _cleanup_free_ char *p = NULL; |
0aa281df | 2113 | const char *msg; |
c1165f82 | 2114 | int audit_fd; |
e537352b | 2115 | |
c1165f82 LP |
2116 | audit_fd = get_audit_fd(); |
2117 | if (audit_fd < 0) | |
e537352b LP |
2118 | return; |
2119 | ||
bbd3a7ba LP |
2120 | /* Don't generate audit events if the service was already |
2121 | * started and we're just deserializing */ | |
a7556052 | 2122 | if (m->n_reloading > 0) |
bbd3a7ba LP |
2123 | return; |
2124 | ||
67445f4e | 2125 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2126 | return; |
2127 | ||
ac155bb8 | 2128 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
2129 | return; |
2130 | ||
bd0af849 ZJS |
2131 | p = unit_name_to_prefix_and_instance(u->id); |
2132 | if (!p) { | |
0aa281df | 2133 | log_oom(); |
e537352b LP |
2134 | return; |
2135 | } | |
2136 | ||
63c372cb | 2137 | msg = strjoina("unit=", p); |
0aa281df LP |
2138 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { |
2139 | if (errno == EPERM) | |
391ade86 | 2140 | /* We aren't allowed to send audit messages? |
44785992 | 2141 | * Then let's not retry again. */ |
c1165f82 | 2142 | close_audit_fd(); |
0aa281df | 2143 | else |
56f64d95 | 2144 | log_warning_errno(errno, "Failed to send audit message: %m"); |
391ade86 | 2145 | } |
4927fcae | 2146 | #endif |
e537352b | 2147 | |
e537352b LP |
2148 | } |
2149 | ||
e983b760 | 2150 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1d749d04 | 2151 | union sockaddr_union sa = PLYMOUTH_SOCKET; |
2ba11090 | 2152 | |
e983b760 | 2153 | int n = 0; |
2ba11090 ZJS |
2154 | _cleanup_free_ char *message = NULL; |
2155 | _cleanup_close_ int fd = -1; | |
e983b760 LP |
2156 | |
2157 | /* Don't generate plymouth events if the service was already | |
2158 | * started and we're just deserializing */ | |
a7556052 | 2159 | if (m->n_reloading > 0) |
e983b760 LP |
2160 | return; |
2161 | ||
67445f4e | 2162 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
2163 | return; |
2164 | ||
3772995a LP |
2165 | if (detect_container(NULL) > 0) |
2166 | return; | |
2167 | ||
ac155bb8 MS |
2168 | if (u->type != UNIT_SERVICE && |
2169 | u->type != UNIT_MOUNT && | |
2170 | u->type != UNIT_SWAP) | |
e983b760 LP |
2171 | return; |
2172 | ||
2173 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
2174 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
2175 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
2176 | if (fd < 0) { | |
56f64d95 | 2177 | log_error_errno(errno, "socket() failed: %m"); |
e983b760 LP |
2178 | return; |
2179 | } | |
2180 | ||
96707269 | 2181 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
e983b760 | 2182 | |
2ba11090 | 2183 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) |
56f64d95 | 2184 | log_error_errno(errno, "connect() failed: %m"); |
2ba11090 | 2185 | return; |
e983b760 LP |
2186 | } |
2187 | ||
ac155bb8 | 2188 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2189 | log_oom(); |
2ba11090 | 2190 | return; |
e983b760 LP |
2191 | } |
2192 | ||
2193 | errno = 0; | |
2ba11090 ZJS |
2194 | if (write(fd, message, n + 1) != n + 1) |
2195 | if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED)) | |
56f64d95 | 2196 | log_error_errno(errno, "Failed to write Plymouth message: %m"); |
e983b760 LP |
2197 | } |
2198 | ||
05e343b7 LP |
2199 | void manager_dispatch_bus_name_owner_changed( |
2200 | Manager *m, | |
2201 | const char *name, | |
2202 | const char* old_owner, | |
2203 | const char *new_owner) { | |
2204 | ||
2205 | Unit *u; | |
2206 | ||
2207 | assert(m); | |
2208 | assert(name); | |
2209 | ||
718db961 LP |
2210 | u = hashmap_get(m->watch_bus, name); |
2211 | if (!u) | |
05e343b7 LP |
2212 | return; |
2213 | ||
2214 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2215 | } | |
2216 | ||
d8d5ab98 | 2217 | int manager_open_serialization(Manager *m, FILE **_f) { |
8e33886e | 2218 | const char *path; |
df28bc08 | 2219 | int fd = -1; |
a16e1123 LP |
2220 | FILE *f; |
2221 | ||
2222 | assert(_f); | |
2223 | ||
8e33886e ZJS |
2224 | path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp"; |
2225 | fd = open_tmpfile(path, O_RDWR|O_CLOEXEC); | |
d86f9d52 | 2226 | if (fd < 0) |
a16e1123 | 2227 | return -errno; |
a16e1123 | 2228 | |
a16e1123 | 2229 | log_debug("Serializing state to %s", path); |
a16e1123 | 2230 | |
01e10de3 | 2231 | f = fdopen(fd, "w+"); |
d86f9d52 | 2232 | if (!f) { |
03e334a1 | 2233 | safe_close(fd); |
a16e1123 | 2234 | return -errno; |
d86f9d52 | 2235 | } |
a16e1123 LP |
2236 | |
2237 | *_f = f; | |
2238 | ||
2239 | return 0; | |
2240 | } | |
2241 | ||
b3680f49 | 2242 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2243 | Iterator i; |
2244 | Unit *u; | |
2245 | const char *t; | |
4a9fd066 | 2246 | char **e; |
a16e1123 LP |
2247 | int r; |
2248 | ||
2249 | assert(m); | |
2250 | assert(f); | |
2251 | assert(fds); | |
2252 | ||
a7556052 | 2253 | m->n_reloading ++; |
38c52d46 | 2254 | |
1fa2f38f | 2255 | fprintf(f, "current-job-id=%"PRIu32"\n", m->current_job_id); |
01d67b43 | 2256 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); |
33c5fae9 LP |
2257 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2258 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2259 | |
915b3753 | 2260 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 2261 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 2262 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 2263 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2264 | |
26a1efdf | 2265 | if (!in_initrd()) { |
915b3753 | 2266 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2267 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2268 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2269 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2270 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2271 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2272 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2273 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2274 | } |
47a483a1 | 2275 | |
b3680f49 HH |
2276 | if (!switching_root) { |
2277 | STRV_FOREACH(e, m->environment) { | |
2278 | _cleanup_free_ char *ce; | |
4a9fd066 | 2279 | |
b3680f49 | 2280 | ce = cescape(*e); |
e3dd987c LP |
2281 | if (!ce) |
2282 | return -ENOMEM; | |
2283 | ||
2284 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2285 | } |
4a9fd066 OS |
2286 | } |
2287 | ||
d86f9d52 LP |
2288 | if (m->notify_fd >= 0) { |
2289 | int copy; | |
2290 | ||
2291 | copy = fdset_put_dup(fds, m->notify_fd); | |
2292 | if (copy < 0) | |
2293 | return copy; | |
2294 | ||
2295 | fprintf(f, "notify-fd=%i\n", copy); | |
2296 | fprintf(f, "notify-socket=%s\n", m->notify_socket); | |
2297 | } | |
2298 | ||
e3dd987c LP |
2299 | if (m->kdbus_fd >= 0) { |
2300 | int copy; | |
2301 | ||
2302 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2303 | if (copy < 0) | |
2304 | return copy; | |
2305 | ||
2306 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2307 | } | |
2308 | ||
8f8f05a9 | 2309 | bus_track_serialize(m->subscribed, f); |
6fa48533 | 2310 | |
f2382a94 LP |
2311 | fputc('\n', f); |
2312 | ||
a16e1123 | 2313 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2314 | if (u->id != t) |
a16e1123 LP |
2315 | continue; |
2316 | ||
a16e1123 | 2317 | /* Start marker */ |
ac155bb8 | 2318 | fputs(u->id, f); |
a16e1123 LP |
2319 | fputc('\n', f); |
2320 | ||
6fa48533 LP |
2321 | r = unit_serialize(u, f, fds, !switching_root); |
2322 | if (r < 0) { | |
a7556052 | 2323 | m->n_reloading --; |
a16e1123 | 2324 | return r; |
38c52d46 | 2325 | } |
a16e1123 LP |
2326 | } |
2327 | ||
a7556052 LP |
2328 | assert(m->n_reloading > 0); |
2329 | m->n_reloading --; | |
38c52d46 | 2330 | |
a16e1123 LP |
2331 | if (ferror(f)) |
2332 | return -EIO; | |
2333 | ||
b23de6af LP |
2334 | r = bus_fdset_add_all(m, fds); |
2335 | if (r < 0) | |
2336 | return r; | |
2337 | ||
a16e1123 LP |
2338 | return 0; |
2339 | } | |
2340 | ||
2341 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2342 | int r = 0; | |
2343 | ||
2344 | assert(m); | |
2345 | assert(f); | |
2346 | ||
2347 | log_debug("Deserializing state..."); | |
2348 | ||
a7556052 | 2349 | m->n_reloading ++; |
82c64bf5 | 2350 | |
10f8e83c | 2351 | for (;;) { |
20c03b7b | 2352 | char line[LINE_MAX], *l; |
10f8e83c LP |
2353 | |
2354 | if (!fgets(line, sizeof(line), f)) { | |
2355 | if (feof(f)) | |
2356 | r = 0; | |
2357 | else | |
2358 | r = -errno; | |
2359 | ||
2360 | goto finish; | |
2361 | } | |
2362 | ||
2363 | char_array_0(line); | |
2364 | l = strstrip(line); | |
2365 | ||
2366 | if (l[0] == 0) | |
2367 | break; | |
2368 | ||
01d67b43 LP |
2369 | if (startswith(l, "current-job-id=")) { |
2370 | uint32_t id; | |
2371 | ||
2372 | if (safe_atou32(l+15, &id) < 0) | |
e5035a27 | 2373 | log_debug("Failed to parse current job id value %s", l+15); |
01d67b43 LP |
2374 | else |
2375 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2376 | |
33c5fae9 LP |
2377 | } else if (startswith(l, "n-installed-jobs=")) { |
2378 | uint32_t n; | |
2379 | ||
2380 | if (safe_atou32(l+17, &n) < 0) | |
e5035a27 | 2381 | log_debug("Failed to parse installed jobs counter %s", l+17); |
33c5fae9 LP |
2382 | else |
2383 | m->n_installed_jobs += n; | |
718db961 | 2384 | |
33c5fae9 LP |
2385 | } else if (startswith(l, "n-failed-jobs=")) { |
2386 | uint32_t n; | |
2387 | ||
2388 | if (safe_atou32(l+14, &n) < 0) | |
e5035a27 | 2389 | log_debug("Failed to parse failed jobs counter %s", l+14); |
33c5fae9 LP |
2390 | else |
2391 | m->n_failed_jobs += n; | |
718db961 | 2392 | |
01d67b43 LP |
2393 | } else if (startswith(l, "taint-usr=")) { |
2394 | int b; | |
2395 | ||
e3dd987c LP |
2396 | b = parse_boolean(l+10); |
2397 | if (b < 0) | |
e5035a27 | 2398 | log_debug("Failed to parse taint /usr flag %s", l+10); |
01d67b43 LP |
2399 | else |
2400 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2401 | |
915b3753 LP |
2402 | } else if (startswith(l, "firmware-timestamp=")) |
2403 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2404 | else if (startswith(l, "loader-timestamp=")) | |
2405 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2406 | else if (startswith(l, "kernel-timestamp=")) | |
2407 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2408 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2409 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2410 | else if (startswith(l, "userspace-timestamp=")) |
2411 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2412 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2413 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2414 | else if (startswith(l, "security-start-timestamp=")) |
2415 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2416 | else if (startswith(l, "security-finish-timestamp=")) | |
2417 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2418 | else if (startswith(l, "generators-start-timestamp=")) | |
2419 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2420 | else if (startswith(l, "generators-finish-timestamp=")) | |
2421 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2422 | else if (startswith(l, "units-load-start-timestamp=")) | |
2423 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2424 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2425 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2426 | else if (startswith(l, "env=")) { |
2427 | _cleanup_free_ char *uce = NULL; | |
2428 | char **e; | |
2429 | ||
527b7a42 LP |
2430 | r = cunescape(l + 4, UNESCAPE_RELAX, &uce); |
2431 | if (r < 0) | |
4a9fd066 | 2432 | goto finish; |
4a9fd066 OS |
2433 | |
2434 | e = strv_env_set(m->environment, uce); | |
2435 | if (!e) { | |
2436 | r = -ENOMEM; | |
2437 | goto finish; | |
2438 | } | |
2439 | ||
2440 | strv_free(m->environment); | |
2441 | m->environment = e; | |
e3dd987c | 2442 | |
d86f9d52 LP |
2443 | } else if (startswith(l, "notify-fd=")) { |
2444 | int fd; | |
2445 | ||
2446 | if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
e5035a27 | 2447 | log_debug("Failed to parse notify fd: %s", l + 10); |
d86f9d52 | 2448 | else { |
03e334a1 LP |
2449 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
2450 | safe_close(m->notify_fd); | |
d86f9d52 LP |
2451 | m->notify_fd = fdset_remove(fds, fd); |
2452 | } | |
2453 | ||
2454 | } else if (startswith(l, "notify-socket=")) { | |
2455 | char *n; | |
2456 | ||
2457 | n = strdup(l+14); | |
2458 | if (!n) { | |
2459 | r = -ENOMEM; | |
2460 | goto finish; | |
2461 | } | |
2462 | ||
2463 | free(m->notify_socket); | |
2464 | m->notify_socket = n; | |
2465 | ||
e3dd987c LP |
2466 | } else if (startswith(l, "kdbus-fd=")) { |
2467 | int fd; | |
2468 | ||
8bf9fcf4 | 2469 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e5035a27 | 2470 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
e3dd987c | 2471 | else { |
03e334a1 | 2472 | safe_close(m->kdbus_fd); |
e3dd987c LP |
2473 | m->kdbus_fd = fdset_remove(fds, fd); |
2474 | } | |
2475 | ||
230314d7 LP |
2476 | } else { |
2477 | int k; | |
2478 | ||
2479 | k = bus_track_deserialize_item(&m->deserialized_subscribed, l); | |
2480 | if (k < 0) | |
2481 | log_debug_errno(k, "Failed to deserialize bus tracker object: %m"); | |
2482 | else if (k == 0) | |
2483 | log_debug("Unknown serialization item '%s'", l); | |
2484 | } | |
10f8e83c LP |
2485 | } |
2486 | ||
a16e1123 LP |
2487 | for (;;) { |
2488 | Unit *u; | |
2489 | char name[UNIT_NAME_MAX+2]; | |
2490 | ||
2491 | /* Start marker */ | |
2492 | if (!fgets(name, sizeof(name), f)) { | |
2493 | if (feof(f)) | |
10f8e83c LP |
2494 | r = 0; |
2495 | else | |
2496 | r = -errno; | |
a16e1123 | 2497 | |
82c64bf5 | 2498 | goto finish; |
a16e1123 LP |
2499 | } |
2500 | ||
2501 | char_array_0(name); | |
2502 | ||
bd0af849 ZJS |
2503 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2504 | if (r < 0) | |
82c64bf5 | 2505 | goto finish; |
a16e1123 | 2506 | |
01e10de3 LP |
2507 | r = unit_deserialize(u, f, fds); |
2508 | if (r < 0) | |
82c64bf5 | 2509 | goto finish; |
a16e1123 LP |
2510 | } |
2511 | ||
10f8e83c | 2512 | finish: |
145b1f79 | 2513 | if (ferror(f)) |
82c64bf5 | 2514 | r = -EIO; |
a16e1123 | 2515 | |
a7556052 LP |
2516 | assert(m->n_reloading > 0); |
2517 | m->n_reloading --; | |
82c64bf5 LP |
2518 | |
2519 | return r; | |
a16e1123 LP |
2520 | } |
2521 | ||
2522 | int manager_reload(Manager *m) { | |
2523 | int r, q; | |
51d122af ZJS |
2524 | _cleanup_fclose_ FILE *f = NULL; |
2525 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2526 | |
2527 | assert(m); | |
2528 | ||
07719a21 LP |
2529 | r = manager_open_serialization(m, &f); |
2530 | if (r < 0) | |
a16e1123 LP |
2531 | return r; |
2532 | ||
a7556052 | 2533 | m->n_reloading ++; |
718db961 | 2534 | bus_manager_send_reloading(m, true); |
38c52d46 | 2535 | |
07719a21 LP |
2536 | fds = fdset_new(); |
2537 | if (!fds) { | |
a7556052 | 2538 | m->n_reloading --; |
51d122af | 2539 | return -ENOMEM; |
a16e1123 LP |
2540 | } |
2541 | ||
b3680f49 | 2542 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2543 | if (r < 0) { |
a7556052 | 2544 | m->n_reloading --; |
51d122af | 2545 | return r; |
38c52d46 | 2546 | } |
a16e1123 LP |
2547 | |
2548 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2549 | m->n_reloading --; |
51d122af | 2550 | return -errno; |
a16e1123 LP |
2551 | } |
2552 | ||
2553 | /* From here on there is no way back. */ | |
2554 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2555 | manager_undo_generators(m); |
84e3543e | 2556 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2557 | |
07719a21 | 2558 | /* Find new unit paths */ |
e801700e ZJS |
2559 | q = manager_run_generators(m); |
2560 | if (q < 0 && r >= 0) | |
2561 | r = q; | |
5a1e9937 | 2562 | |
07719a21 LP |
2563 | q = lookup_paths_init( |
2564 | &m->lookup_paths, m->running_as, true, | |
12ed81d9 | 2565 | NULL, |
07719a21 LP |
2566 | m->generator_unit_path, |
2567 | m->generator_unit_path_early, | |
2568 | m->generator_unit_path_late); | |
e801700e | 2569 | if (q < 0 && r >= 0) |
07719a21 LP |
2570 | r = q; |
2571 | ||
5a1e9937 LP |
2572 | manager_build_unit_path_cache(m); |
2573 | ||
a16e1123 | 2574 | /* First, enumerate what we can from all config files */ |
07719a21 | 2575 | q = manager_enumerate(m); |
e801700e | 2576 | if (q < 0 && r >= 0) |
a16e1123 LP |
2577 | r = q; |
2578 | ||
2579 | /* Second, deserialize our stored data */ | |
07719a21 | 2580 | q = manager_deserialize(m, f, fds); |
e801700e | 2581 | if (q < 0 && r >= 0) |
a16e1123 LP |
2582 | r = q; |
2583 | ||
2584 | fclose(f); | |
2585 | f = NULL; | |
2586 | ||
a2cc4a6c ZJS |
2587 | /* Re-register notify_fd as event source */ |
2588 | q = manager_setup_notify(m); | |
e801700e | 2589 | if (q < 0 && r >= 0) |
a2cc4a6c ZJS |
2590 | r = q; |
2591 | ||
a16e1123 | 2592 | /* Third, fire things up! */ |
07719a21 | 2593 | q = manager_coldplug(m); |
e801700e | 2594 | if (q < 0 && r >= 0) |
a16e1123 LP |
2595 | r = q; |
2596 | ||
a7556052 LP |
2597 | assert(m->n_reloading > 0); |
2598 | m->n_reloading--; | |
9f611ad8 | 2599 | |
71445ae7 LP |
2600 | m->send_reloading_done = true; |
2601 | ||
a16e1123 LP |
2602 | return r; |
2603 | } | |
2604 | ||
c17ec25e MS |
2605 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2606 | assert(m); | |
2607 | ||
2608 | return m->n_reloading != 0; | |
2609 | } | |
2610 | ||
fdf20a31 | 2611 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2612 | Unit *u; |
2613 | Iterator i; | |
2614 | ||
2615 | assert(m); | |
2616 | ||
2617 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2618 | unit_reset_failed(u); |
5632e374 LP |
2619 | } |
2620 | ||
31afa0a4 | 2621 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2622 | Unit *u; |
2623 | ||
2624 | assert(m); | |
2625 | assert(name); | |
2626 | ||
2627 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2628 | u = manager_get_unit(m, name); |
2629 | if (!u) | |
8f6df3fa LP |
2630 | return true; |
2631 | ||
31afa0a4 | 2632 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2633 | } |
2634 | ||
56dacdbc | 2635 | static void manager_notify_finished(Manager *m) { |
7ceba241 | 2636 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2637 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 | 2638 | |
56dacdbc | 2639 | if (m->test_run) |
b0c918b9 LP |
2640 | return; |
2641 | ||
67445f4e | 2642 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2643 | |
915b3753 LP |
2644 | /* Note that m->kernel_usec.monotonic is always at 0, |
2645 | * and m->firmware_usec.monotonic and | |
2646 | * m->loader_usec.monotonic should be considered | |
2647 | * negative values. */ | |
2648 | ||
7ceba241 LP |
2649 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2650 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2651 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2652 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2653 | |
e9ddabc2 | 2654 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2655 | |
915b3753 LP |
2656 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2657 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2658 | |
e12919e8 | 2659 | log_struct(LOG_INFO, |
e2cc6eca | 2660 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
e12919e8 LP |
2661 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
2662 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
2663 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
e2cc6eca LP |
2664 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", |
2665 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2666 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2667 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2668 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
e12919e8 | 2669 | NULL); |
18fa6b27 | 2670 | } else { |
915b3753 | 2671 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2672 | initrd_usec = 0; |
2673 | ||
81270860 | 2674 | log_struct(LOG_INFO, |
e2cc6eca | 2675 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
e12919e8 | 2676 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
ccd06097 | 2677 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
e2cc6eca LP |
2678 | LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.", |
2679 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), | |
2680 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2681 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
81270860 | 2682 | NULL); |
e12919e8 LP |
2683 | } |
2684 | } else { | |
2685 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; | |
2686 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
2687 | ||
2688 | log_struct(LOG_INFO, | |
e2cc6eca | 2689 | LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
e12919e8 | 2690 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
e2cc6eca LP |
2691 | LOG_MESSAGE("Startup finished in %s.", |
2692 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)), | |
e12919e8 | 2693 | NULL); |
18fa6b27 | 2694 | } |
b0c918b9 | 2695 | |
718db961 | 2696 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2697 | |
2698 | sd_notifyf(false, | |
af4ec430 LP |
2699 | "READY=1\n" |
2700 | "STATUS=Startup finished in %s.", | |
2fa4092c | 2701 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2702 | } |
2703 | ||
56dacdbc ZJS |
2704 | void manager_check_finished(Manager *m) { |
2705 | Unit *u = NULL; | |
2706 | Iterator i; | |
2707 | ||
2708 | assert(m); | |
2709 | ||
56dacdbc ZJS |
2710 | if (hashmap_size(m->jobs) > 0) { |
2711 | ||
2712 | if (m->jobs_in_progress_event_source) | |
2ae56591 ZJS |
2713 | /* Ignore any failure, this is only for feedback */ |
2714 | (void) sd_event_source_set_time(m->jobs_in_progress_event_source, | |
2715 | now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); | |
56dacdbc ZJS |
2716 | |
2717 | return; | |
2718 | } | |
2719 | ||
2720 | manager_flip_auto_status(m, false); | |
2721 | ||
2722 | /* Notify Type=idle units that we are done now */ | |
2723 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); | |
2724 | manager_close_idle_pipe(m); | |
2725 | ||
2726 | /* Turn off confirm spawn now */ | |
2727 | m->confirm_spawn = false; | |
2728 | ||
2729 | /* No need to update ask password status when we're going non-interactive */ | |
2730 | manager_close_ask_password(m); | |
2731 | ||
2732 | /* This is no longer the first boot */ | |
2733 | manager_set_first_boot(m, false); | |
2734 | ||
2735 | if (dual_timestamp_is_set(&m->finish_timestamp)) | |
2736 | return; | |
2737 | ||
2738 | dual_timestamp_get(&m->finish_timestamp); | |
2739 | ||
2740 | manager_notify_finished(m); | |
2741 | ||
2742 | SET_FOREACH(u, m->startup_units, i) | |
2743 | if (u->cgroup_path) | |
2744 | cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m)); | |
2745 | } | |
2746 | ||
07719a21 LP |
2747 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2748 | char *p; | |
2749 | int r; | |
2750 | ||
2751 | assert(m); | |
2752 | assert(generator); | |
2753 | assert(name); | |
2754 | ||
2755 | if (*generator) | |
2756 | return 0; | |
2757 | ||
67445f4e | 2758 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
fcc81ea3 | 2759 | /* systemd --system, not running --test */ |
07719a21 LP |
2760 | |
2761 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2762 | if (!p) |
2763 | return log_oom(); | |
07719a21 | 2764 | |
fcc81ea3 KS |
2765 | r = mkdir_p_label(p, 0755); |
2766 | if (r < 0) { | |
c33b3297 | 2767 | log_error_errno(r, "Failed to create generator directory %s: %m", p); |
fcc81ea3 KS |
2768 | free(p); |
2769 | return r; | |
2770 | } | |
2771 | } else if (m->running_as == SYSTEMD_USER) { | |
2772 | const char *s = NULL; | |
2773 | ||
2774 | s = getenv("XDG_RUNTIME_DIR"); | |
2775 | if (!s) | |
2776 | return -EINVAL; | |
2777 | p = strjoin(s, "/systemd/", name, NULL); | |
2778 | if (!p) | |
2779 | return log_oom(); | |
2780 | ||
d2e54fae | 2781 | r = mkdir_p_label(p, 0755); |
07719a21 | 2782 | if (r < 0) { |
c33b3297 | 2783 | log_error_errno(r, "Failed to create generator directory %s: %m", p); |
07719a21 LP |
2784 | free(p); |
2785 | return r; | |
2786 | } | |
2787 | } else { | |
fcc81ea3 KS |
2788 | /* systemd --system --test */ |
2789 | ||
b7def684 | 2790 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2791 | if (!p) |
2792 | return log_oom(); | |
07719a21 LP |
2793 | |
2794 | if (!mkdtemp(p)) { | |
56f64d95 | 2795 | log_error_errno(errno, "Failed to create generator directory %s: %m", |
7ad94c71 | 2796 | p); |
34bf0281 | 2797 | free(p); |
07719a21 LP |
2798 | return -errno; |
2799 | } | |
2800 | } | |
2801 | ||
2802 | *generator = p; | |
2803 | return 0; | |
2804 | } | |
2805 | ||
2806 | static void trim_generator_dir(Manager *m, char **generator) { | |
2807 | assert(m); | |
2808 | assert(generator); | |
2809 | ||
2810 | if (!*generator) | |
2811 | return; | |
2812 | ||
2813 | if (rmdir(*generator) >= 0) { | |
2814 | free(*generator); | |
2815 | *generator = NULL; | |
2816 | } | |
2817 | ||
2818 | return; | |
2819 | } | |
2820 | ||
e801700e ZJS |
2821 | static int manager_run_generators(Manager *m) { |
2822 | _cleanup_free_ char **paths = NULL; | |
07719a21 | 2823 | const char *argv[5]; |
e801700e | 2824 | char **path; |
07719a21 | 2825 | int r; |
5a1e9937 LP |
2826 | |
2827 | assert(m); | |
2828 | ||
0d8c31ff | 2829 | if (m->test_run) |
e801700e | 2830 | return 0; |
0d8c31ff | 2831 | |
e801700e ZJS |
2832 | paths = generator_paths(m->running_as); |
2833 | if (!paths) | |
2834 | return log_oom(); | |
5a1e9937 | 2835 | |
49681057 ZJS |
2836 | /* Optimize by skipping the whole process by not creating output directories |
2837 | * if no generators are found. */ | |
e801700e ZJS |
2838 | STRV_FOREACH(path, paths) { |
2839 | r = access(*path, F_OK); | |
2840 | if (r == 0) | |
2841 | goto found; | |
49681057 | 2842 | if (errno != ENOENT) |
e801700e | 2843 | log_warning_errno(errno, "Failed to open generator directory %s: %m", *path); |
5a1e9937 | 2844 | } |
e801700e | 2845 | return 0; |
5a1e9937 | 2846 | |
e801700e | 2847 | found: |
07719a21 LP |
2848 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2849 | if (r < 0) | |
2850 | goto finish; | |
f1d19aa4 | 2851 | |
07719a21 LP |
2852 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2853 | if (r < 0) | |
2854 | goto finish; | |
5a1e9937 | 2855 | |
07719a21 LP |
2856 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2857 | if (r < 0) | |
2858 | goto finish; | |
5a1e9937 | 2859 | |
83cc030f LP |
2860 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2861 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2862 | argv[2] = m->generator_unit_path_early; |
2863 | argv[3] = m->generator_unit_path_late; | |
2864 | argv[4] = NULL; | |
5a1e9937 | 2865 | |
718db961 | 2866 | RUN_WITH_UMASK(0022) |
e801700e | 2867 | execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, (char**) argv); |
5a1e9937 | 2868 | |
718db961 | 2869 | finish: |
07719a21 LP |
2870 | trim_generator_dir(m, &m->generator_unit_path); |
2871 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2872 | trim_generator_dir(m, &m->generator_unit_path_late); | |
e801700e | 2873 | return r; |
5a1e9937 LP |
2874 | } |
2875 | ||
07719a21 | 2876 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2877 | assert(m); |
07719a21 | 2878 | assert(generator); |
5a1e9937 | 2879 | |
07719a21 | 2880 | if (!*generator) |
5a1e9937 LP |
2881 | return; |
2882 | ||
07719a21 | 2883 | strv_remove(m->lookup_paths.unit_path, *generator); |
c6878637 | 2884 | (void) rm_rf(*generator, REMOVE_ROOT); |
5a1e9937 | 2885 | |
07719a21 LP |
2886 | free(*generator); |
2887 | *generator = NULL; | |
2888 | } | |
2889 | ||
e801700e | 2890 | static void manager_undo_generators(Manager *m) { |
07719a21 LP |
2891 | assert(m); |
2892 | ||
2893 | remove_generator_dir(m, &m->generator_unit_path); | |
2894 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2895 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2896 | } |
2897 | ||
718db961 LP |
2898 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2899 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2900 | assert(m); |
bcd8e6d1 | 2901 | |
718db961 | 2902 | l = m->environment; |
bcd8e6d1 | 2903 | |
718db961 LP |
2904 | if (!strv_isempty(minus)) { |
2905 | a = strv_env_delete(l, 1, minus); | |
2906 | if (!a) | |
2907 | return -ENOMEM; | |
2908 | ||
2909 | l = a; | |
2910 | } | |
2911 | ||
2912 | if (!strv_isempty(plus)) { | |
2913 | b = strv_env_merge(2, l, plus); | |
aa9f8a30 AH |
2914 | if (!b) { |
2915 | strv_free(a); | |
718db961 | 2916 | return -ENOMEM; |
aa9f8a30 | 2917 | } |
bcd8e6d1 | 2918 | |
718db961 LP |
2919 | l = b; |
2920 | } | |
2921 | ||
2922 | if (m->environment != l) | |
2923 | strv_free(m->environment); | |
2924 | if (a != l) | |
2925 | strv_free(a); | |
2926 | if (b != l) | |
2927 | strv_free(b); | |
2928 | ||
f069efb4 LP |
2929 | m->environment = l; |
2930 | manager_clean_environment(m); | |
2931 | strv_sort(m->environment); | |
2932 | ||
97d0e5f8 UTL |
2933 | return 0; |
2934 | } | |
2935 | ||
c93ff2e9 FC |
2936 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2937 | int i; | |
2938 | ||
2939 | assert(m); | |
2940 | ||
517d56b1 | 2941 | for (i = 0; i < _RLIMIT_MAX; i++) { |
07719a21 LP |
2942 | if (!default_rlimit[i]) |
2943 | continue; | |
c93ff2e9 | 2944 | |
07719a21 LP |
2945 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2946 | if (!m->rlimit[i]) | |
2947 | return -ENOMEM; | |
c93ff2e9 FC |
2948 | } |
2949 | ||
2950 | return 0; | |
2951 | } | |
2952 | ||
4cfa2c99 | 2953 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2954 | Unit *u; |
2955 | ||
2956 | assert(m); | |
2957 | ||
67445f4e | 2958 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2959 | return; |
2960 | ||
731a676c LP |
2961 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2962 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2963 | log_close_journal(); |
731a676c | 2964 | return; |
f1dd0c3f LP |
2965 | } |
2966 | ||
731a676c LP |
2967 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2968 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2969 | log_close_journal(); |
731a676c LP |
2970 | return; |
2971 | } | |
f1dd0c3f | 2972 | |
731a676c LP |
2973 | /* Hmm, OK, so the socket is fully up and the service is up |
2974 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2975 | log_open(); |
2976 | } | |
2977 | ||
d450b6f2 | 2978 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 2979 | assert(m); |
d450b6f2 | 2980 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 2981 | |
67445f4e | 2982 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2983 | return; |
2984 | ||
d450b6f2 | 2985 | m->show_status = mode; |
27d340c7 | 2986 | |
d450b6f2 | 2987 | if (mode > 0) |
27d340c7 LP |
2988 | touch("/run/systemd/show-status"); |
2989 | else | |
2990 | unlink("/run/systemd/show-status"); | |
2991 | } | |
2992 | ||
127d5fd1 | 2993 | static bool manager_get_show_status(Manager *m, StatusType type) { |
27d340c7 LP |
2994 | assert(m); |
2995 | ||
67445f4e | 2996 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2997 | return false; |
2998 | ||
31a7eb86 ZJS |
2999 | if (m->no_console_output) |
3000 | return false; | |
3001 | ||
d81afec1 | 3002 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
08510627 LP |
3003 | return false; |
3004 | ||
e46b13c8 | 3005 | /* If we cannot find out the status properly, just proceed. */ |
ebc5788e | 3006 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) |
e46b13c8 ZJS |
3007 | return false; |
3008 | ||
d450b6f2 | 3009 | if (m->show_status > 0) |
27d340c7 LP |
3010 | return true; |
3011 | ||
031886ed | 3012 | return false; |
27d340c7 | 3013 | } |
68b29a9f | 3014 | |
e2680723 LP |
3015 | void manager_set_first_boot(Manager *m, bool b) { |
3016 | assert(m); | |
3017 | ||
3018 | if (m->running_as != SYSTEMD_SYSTEM) | |
3019 | return; | |
3020 | ||
3021 | m->first_boot = b; | |
3022 | ||
3023 | if (m->first_boot) | |
3024 | touch("/run/systemd/first-boot"); | |
3025 | else | |
3026 | unlink("/run/systemd/first-boot"); | |
3027 | } | |
3028 | ||
127d5fd1 | 3029 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { |
25cee550 MS |
3030 | va_list ap; |
3031 | ||
cb6531be ZJS |
3032 | /* If m is NULL, assume we're after shutdown and let the messages through. */ |
3033 | ||
3034 | if (m && !manager_get_show_status(m, type)) | |
25cee550 MS |
3035 | return; |
3036 | ||
03b717a3 MS |
3037 | /* XXX We should totally drop the check for ephemeral here |
3038 | * and thus effectively make 'Type=idle' pointless. */ | |
cb6531be | 3039 | if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0) |
03b717a3 MS |
3040 | return; |
3041 | ||
25cee550 | 3042 | va_start(ap, format); |
127d5fd1 | 3043 | status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap); |
25cee550 MS |
3044 | va_end(ap); |
3045 | } | |
3046 | ||
a57f7e2c LP |
3047 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
3048 | _cleanup_free_ char *p = NULL; | |
3049 | Unit *found; | |
3050 | ||
3051 | assert(m); | |
3052 | assert(path); | |
3053 | assert(suffix); | |
3054 | assert(_found); | |
3055 | ||
3056 | p = unit_name_from_path(path, suffix); | |
3057 | if (!p) | |
3058 | return -ENOMEM; | |
3059 | ||
3060 | found = manager_get_unit(m, p); | |
3061 | if (!found) { | |
3062 | *_found = NULL; | |
3063 | return 0; | |
3064 | } | |
3065 | ||
3066 | *_found = found; | |
3067 | return 1; | |
3068 | } | |
3069 | ||
3070 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
3071 | char p[strlen(path)+1]; | |
3072 | ||
3073 | assert(m); | |
3074 | assert(path); | |
3075 | ||
3076 | strcpy(p, path); | |
3077 | path_kill_slashes(p); | |
3078 | ||
3079 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
3080 | } | |
e66cf1a3 LP |
3081 | |
3082 | const char *manager_get_runtime_prefix(Manager *m) { | |
f755e3b7 | 3083 | assert(m); |
e66cf1a3 LP |
3084 | |
3085 | return m->running_as == SYSTEMD_SYSTEM ? | |
3086 | "/run" : | |
3087 | getenv("XDG_RUNTIME_DIR"); | |
3088 | } | |
f755e3b7 | 3089 | |
03455c28 LDM |
3090 | void manager_update_failed_units(Manager *m, Unit *u, bool failed) { |
3091 | unsigned size; | |
3092 | ||
3093 | assert(m); | |
3094 | assert(u->manager == m); | |
3095 | ||
3096 | size = set_size(m->failed_units); | |
3097 | ||
9fff8981 ZJS |
3098 | if (failed) { |
3099 | if (set_put(m->failed_units, u) < 0) | |
3100 | log_oom(); | |
3101 | } else | |
03455c28 LDM |
3102 | set_remove(m->failed_units, u); |
3103 | ||
3104 | if (set_size(m->failed_units) != size) | |
3105 | bus_manager_send_change_signal(m); | |
3106 | } | |
3107 | ||
f755e3b7 LP |
3108 | ManagerState manager_state(Manager *m) { |
3109 | Unit *u; | |
3110 | ||
3111 | assert(m); | |
3112 | ||
3113 | /* Did we ever finish booting? If not then we are still starting up */ | |
d81afec1 LP |
3114 | if (!dual_timestamp_is_set(&m->finish_timestamp)) { |
3115 | ||
3116 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3117 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3118 | return MANAGER_INITIALIZING; | |
3119 | ||
f755e3b7 | 3120 | return MANAGER_STARTING; |
d81afec1 | 3121 | } |
f755e3b7 LP |
3122 | |
3123 | /* Is the special shutdown target queued? If so, we are in shutdown state */ | |
3124 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
3125 | if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) | |
3126 | return MANAGER_STOPPING; | |
3127 | ||
3128 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
3129 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
3130 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3131 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3132 | return MANAGER_MAINTENANCE; | |
3133 | ||
3134 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); | |
3135 | if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || | |
3136 | (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) | |
3137 | return MANAGER_MAINTENANCE; | |
3138 | ||
3139 | /* Are there any failed units? If so, we are in degraded mode */ | |
3140 | if (set_size(m->failed_units) > 0) | |
3141 | return MANAGER_DEGRADED; | |
3142 | ||
3143 | return MANAGER_RUNNING; | |
3144 | } | |
3145 | ||
3146 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { | |
d81afec1 | 3147 | [MANAGER_INITIALIZING] = "initializing", |
f755e3b7 LP |
3148 | [MANAGER_STARTING] = "starting", |
3149 | [MANAGER_RUNNING] = "running", | |
3150 | [MANAGER_DEGRADED] = "degraded", | |
3151 | [MANAGER_MAINTENANCE] = "maintenance", | |
3152 | [MANAGER_STOPPING] = "stopping", | |
3153 | }; | |
3154 | ||
3155 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); |