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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 LP |
25 | #include <sys/epoll.h> |
26 | #include <signal.h> | |
27 | #include <sys/signalfd.h> | |
28 | #include <sys/wait.h> | |
29 | #include <unistd.h> | |
30 | #include <sys/poll.h> | |
e1414003 LP |
31 | #include <sys/reboot.h> |
32 | #include <sys/ioctl.h> | |
33 | #include <linux/kd.h> | |
80876c20 LP |
34 | #include <termios.h> |
35 | #include <fcntl.h> | |
a16e1123 LP |
36 | #include <sys/types.h> |
37 | #include <sys/stat.h> | |
fe51822e | 38 | #include <dirent.h> |
8742514c | 39 | #include <sys/timerfd.h> |
830f6caa LP |
40 | |
41 | #ifdef HAVE_AUDIT | |
4927fcae | 42 | #include <libaudit.h> |
830f6caa | 43 | #endif |
60918275 | 44 | |
877d54e9 LP |
45 | #include "systemd/sd-daemon.h" |
46 | #include "systemd/sd-id128.h" | |
47 | #include "systemd/sd-messages.h" | |
81527be1 | 48 | |
60918275 | 49 | #include "manager.h" |
75778e21 | 50 | #include "transaction.h" |
60918275 LP |
51 | #include "hashmap.h" |
52 | #include "macro.h" | |
53 | #include "strv.h" | |
16354eff | 54 | #include "log.h" |
2a987ee8 | 55 | #include "util.h" |
49e942b2 | 56 | #include "mkdir.h" |
ea430986 | 57 | #include "ratelimit.h" |
e21fea24 | 58 | #include "locale-setup.h" |
8e274523 | 59 | #include "mount-setup.h" |
9e2f7c11 | 60 | #include "unit-name.h" |
4139c1b2 LP |
61 | #include "dbus-unit.h" |
62 | #include "dbus-job.h" | |
1137a57c | 63 | #include "missing.h" |
84e3543e | 64 | #include "path-lookup.h" |
514f4ef5 | 65 | #include "special.h" |
398ef8ba | 66 | #include "bus-errors.h" |
d06dacd0 | 67 | #include "exit-status.h" |
5dc4c17f | 68 | #include "virt.h" |
e96d6be7 | 69 | #include "watchdog.h" |
b59e2465 | 70 | #include "cgroup-util.h" |
9eb977db | 71 | #include "path-util.h" |
c1165f82 | 72 | #include "audit-fd.h" |
c51d84dc | 73 | #include "boot-timestamps.h" |
8b55b8c4 | 74 | #include "env-util.h" |
60918275 | 75 | |
701cc384 | 76 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 77 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 78 | |
03b717a3 MS |
79 | /* Initial delay and the interval for printing status messages about running jobs */ |
80 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
81 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
82 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
83 | ||
8c47c732 | 84 | /* Where clients shall send notification messages to */ |
29252e9e | 85 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 86 | |
c3e31c7b ZJS |
87 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
88 | ||
8c47c732 LP |
89 | static int manager_setup_notify(Manager *m) { |
90 | union { | |
91 | struct sockaddr sa; | |
92 | struct sockaddr_un un; | |
b92bea5d ZJS |
93 | } sa = { |
94 | .sa.sa_family = AF_UNIX, | |
95 | }; | |
96 | struct epoll_event ev = { | |
97 | .events = EPOLLIN, | |
98 | .data.ptr = &m->notify_watch, | |
99 | }; | |
e62d8c39 | 100 | int one = 1, r; |
8c47c732 | 101 | |
8c47c732 | 102 | m->notify_watch.type = WATCH_NOTIFY; |
29252e9e LP |
103 | m->notify_watch.fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
104 | if (m->notify_watch.fd < 0) { | |
8c47c732 LP |
105 | log_error("Failed to allocate notification socket: %m"); |
106 | return -errno; | |
107 | } | |
108 | ||
31f92a7d | 109 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
110 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
111 | else | |
112 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
8c47c732 | 113 | |
29252e9e | 114 | sa.un.sun_path[0] = 0; |
1d6702e8 | 115 | |
e62d8c39 ZJS |
116 | r = bind(m->notify_watch.fd, &sa.sa, |
117 | offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
118 | if (r < 0) { | |
8c47c732 LP |
119 | log_error("bind() failed: %m"); |
120 | return -errno; | |
121 | } | |
122 | ||
e62d8c39 ZJS |
123 | r = setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
124 | if (r < 0) { | |
8c47c732 LP |
125 | log_error("SO_PASSCRED failed: %m"); |
126 | return -errno; | |
127 | } | |
128 | ||
e62d8c39 ZJS |
129 | r = epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev); |
130 | if (r < 0) { | |
28137202 | 131 | log_error("Failed to add notification socket fd to epoll: %m"); |
8c47c732 | 132 | return -errno; |
8742514c | 133 | } |
8c47c732 | 134 | |
29252e9e LP |
135 | sa.un.sun_path[0] = '@'; |
136 | m->notify_socket = strdup(sa.un.sun_path); | |
137 | if (!m->notify_socket) | |
8742514c | 138 | return log_oom(); |
8c47c732 | 139 | |
b2bb3dbe LP |
140 | log_debug("Using notification socket %s", m->notify_socket); |
141 | ||
8c47c732 LP |
142 | return 0; |
143 | } | |
144 | ||
03b717a3 | 145 | static int manager_jobs_in_progress_mod_timer(Manager *m) { |
b92bea5d ZJS |
146 | struct itimerspec its = { |
147 | .it_value.tv_sec = JOBS_IN_PROGRESS_WAIT_SEC, | |
148 | .it_interval.tv_sec = JOBS_IN_PROGRESS_PERIOD_SEC, | |
149 | }; | |
03b717a3 | 150 | |
5b176ee0 MS |
151 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) |
152 | return 0; | |
153 | ||
03b717a3 MS |
154 | if (timerfd_settime(m->jobs_in_progress_watch.fd, 0, &its, NULL) < 0) |
155 | return -errno; | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
160 | static int manager_watch_jobs_in_progress(Manager *m) { | |
b92bea5d ZJS |
161 | struct epoll_event ev = { |
162 | .events = EPOLLIN, | |
163 | .data.ptr = &m->jobs_in_progress_watch, | |
164 | }; | |
03b717a3 MS |
165 | int r; |
166 | ||
03b717a3 MS |
167 | if (m->jobs_in_progress_watch.type != WATCH_INVALID) |
168 | return 0; | |
169 | ||
170 | m->jobs_in_progress_watch.type = WATCH_JOBS_IN_PROGRESS; | |
171 | m->jobs_in_progress_watch.fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC); | |
172 | if (m->jobs_in_progress_watch.fd < 0) { | |
173 | log_error("Failed to create timerfd: %m"); | |
174 | r = -errno; | |
175 | goto err; | |
176 | } | |
177 | ||
178 | r = manager_jobs_in_progress_mod_timer(m); | |
179 | if (r < 0) { | |
180 | log_error("Failed to set up timer for jobs progress watch: %s", strerror(-r)); | |
181 | goto err; | |
182 | } | |
183 | ||
03b717a3 MS |
184 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->jobs_in_progress_watch.fd, &ev) < 0) { |
185 | log_error("Failed to add jobs progress timer fd to epoll: %m"); | |
186 | r = -errno; | |
187 | goto err; | |
188 | } | |
189 | ||
190 | log_debug("Set up jobs progress timerfd."); | |
191 | ||
192 | return 0; | |
193 | ||
194 | err: | |
195 | if (m->jobs_in_progress_watch.fd >= 0) | |
196 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
197 | watch_init(&m->jobs_in_progress_watch); | |
198 | return r; | |
199 | } | |
200 | ||
201 | static void manager_unwatch_jobs_in_progress(Manager *m) { | |
202 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) | |
203 | return; | |
204 | ||
205 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->jobs_in_progress_watch.fd, NULL) >= 0); | |
206 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
207 | watch_init(&m->jobs_in_progress_watch); | |
208 | m->jobs_in_progress_iteration = 0; | |
209 | ||
210 | log_debug("Closed jobs progress timerfd."); | |
211 | } | |
212 | ||
213 | #define CYLON_BUFFER_EXTRA (2*strlen(ANSI_RED_ON) + strlen(ANSI_HIGHLIGHT_RED_ON) + 2*strlen(ANSI_HIGHLIGHT_OFF)) | |
214 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { | |
215 | char *p = buffer; | |
216 | ||
217 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
218 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
219 | ||
220 | if (pos > 1) { | |
6282c859 MS |
221 | if (pos > 2) |
222 | p = mempset(p, ' ', pos-2); | |
5052495b | 223 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
224 | *p++ = '*'; |
225 | } | |
226 | ||
227 | if (pos > 0 && pos <= width) { | |
5052495b | 228 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
229 | *p++ = '*'; |
230 | } | |
231 | ||
5052495b | 232 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
233 | |
234 | if (pos < width) { | |
5052495b | 235 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 236 | *p++ = '*'; |
6282c859 MS |
237 | if (pos < width-1) |
238 | p = mempset(p, ' ', width-1-pos); | |
5052495b | 239 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 240 | } |
03b717a3 MS |
241 | } |
242 | ||
243 | static void manager_print_jobs_in_progress(Manager *m) { | |
244 | Iterator i; | |
245 | Job *j; | |
246 | char *job_of_n = NULL; | |
247 | unsigned counter = 0, print_nr; | |
248 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
249 | unsigned cylon_pos; | |
250 | ||
251 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
252 | ||
253 | HASHMAP_FOREACH(j, m->jobs, i) | |
254 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
255 | break; | |
256 | ||
e970a72e MS |
257 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
258 | * so the above loop must have succeeded in finding j. */ | |
259 | assert(counter == print_nr + 1); | |
5a82a91a | 260 | |
03b717a3 MS |
261 | cylon_pos = m->jobs_in_progress_iteration % 14; |
262 | if (cylon_pos >= 8) | |
263 | cylon_pos = 14 - cylon_pos; | |
264 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
265 | ||
266 | if (m->n_running_jobs > 1) | |
267 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
268 | job_of_n = NULL; | |
269 | ||
270 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
271 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
272 | free(job_of_n); | |
273 | ||
274 | m->jobs_in_progress_iteration++; | |
275 | } | |
276 | ||
31a7eb86 ZJS |
277 | static int manager_watch_idle_pipe(Manager *m) { |
278 | struct epoll_event ev = { | |
279 | .events = EPOLLIN, | |
280 | .data.ptr = &m->idle_pipe_watch, | |
281 | }; | |
282 | int r; | |
283 | ||
284 | if (m->idle_pipe_watch.type != WATCH_INVALID) | |
285 | return 0; | |
286 | ||
287 | if (m->idle_pipe[2] < 0) | |
288 | return 0; | |
289 | ||
290 | m->idle_pipe_watch.type = WATCH_IDLE_PIPE; | |
291 | m->idle_pipe_watch.fd = m->idle_pipe[2]; | |
292 | if (m->idle_pipe_watch.fd < 0) { | |
293 | log_error("Failed to create timerfd: %m"); | |
294 | r = -errno; | |
295 | goto err; | |
296 | } | |
297 | ||
298 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->idle_pipe_watch.fd, &ev) < 0) { | |
299 | log_error("Failed to add idle_pipe fd to epoll: %m"); | |
300 | r = -errno; | |
301 | goto err; | |
302 | } | |
303 | ||
304 | log_debug("Set up idle_pipe watch."); | |
31a7eb86 ZJS |
305 | |
306 | return 0; | |
307 | ||
308 | err: | |
309 | if (m->idle_pipe_watch.fd >= 0) | |
310 | close_nointr_nofail(m->idle_pipe_watch.fd); | |
311 | watch_init(&m->idle_pipe_watch); | |
312 | return r; | |
313 | } | |
314 | ||
315 | static void manager_unwatch_idle_pipe(Manager *m) { | |
316 | if (m->idle_pipe_watch.type != WATCH_IDLE_PIPE) | |
317 | return; | |
318 | ||
31a7eb86 ZJS |
319 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->idle_pipe_watch.fd, NULL) >= 0); |
320 | watch_init(&m->idle_pipe_watch); | |
321 | ||
322 | log_debug("Closed idle_pipe watch."); | |
323 | } | |
324 | ||
8742514c | 325 | static int manager_setup_time_change(Manager *m) { |
b92bea5d ZJS |
326 | struct epoll_event ev = { |
327 | .events = EPOLLIN, | |
328 | .data.ptr = &m->time_change_watch, | |
329 | }; | |
330 | ||
331 | /* We only care for the cancellation event, hence we set the | |
332 | * timeout to the latest possible value. */ | |
333 | struct itimerspec its = { | |
334 | .it_value.tv_sec = TIME_T_MAX, | |
335 | }; | |
336 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 337 | |
8742514c LP |
338 | assert(m->time_change_watch.type == WATCH_INVALID); |
339 | ||
340 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
341 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
342 | ||
343 | m->time_change_watch.type = WATCH_TIME_CHANGE; | |
344 | m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
345 | if (m->time_change_watch.fd < 0) { | |
346 | log_error("Failed to create timerfd: %m"); | |
347 | return -errno; | |
348 | } | |
349 | ||
8742514c LP |
350 | if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
351 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); | |
352 | close_nointr_nofail(m->time_change_watch.fd); | |
353 | watch_init(&m->time_change_watch); | |
354 | return 0; | |
355 | } | |
356 | ||
8742514c LP |
357 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) { |
358 | log_error("Failed to add timer change fd to epoll: %m"); | |
359 | return -errno; | |
360 | } | |
361 | ||
362 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
363 | ||
364 | return 0; | |
365 | } | |
366 | ||
80876c20 | 367 | static int enable_special_signals(Manager *m) { |
4466ee6a | 368 | int fd; |
80876c20 LP |
369 | |
370 | assert(m); | |
371 | ||
a41b539e | 372 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
373 | * this will fail with EPERM (older) or EINVAL (newer), so |
374 | * ignore that. */ | |
375 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
376 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
377 | ||
a41b539e LP |
378 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
379 | if (fd < 0) { | |
380 | /* Support systems without virtual console */ | |
381 | if (fd != -ENOENT) | |
382 | log_warning("Failed to open /dev/tty0: %m"); | |
383 | } else { | |
80876c20 LP |
384 | /* Enable that we get SIGWINCH on kbrequest */ |
385 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
386 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
387 | ||
388 | close_nointr_nofail(fd); | |
389 | } | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
ce578209 | 394 | static int manager_setup_signals(Manager *m) { |
9152c765 | 395 | sigset_t mask; |
b92bea5d ZJS |
396 | struct epoll_event ev = { |
397 | .events = EPOLLIN, | |
398 | .data.ptr = &m->signal_watch, | |
399 | }; | |
400 | struct sigaction sa = { | |
401 | .sa_handler = SIG_DFL, | |
402 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
403 | }; | |
60918275 | 404 | |
ce578209 LP |
405 | assert(m); |
406 | ||
57c0c30e | 407 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
408 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
409 | ||
ce578209 | 410 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
411 | |
412 | sigset_add_many(&mask, | |
413 | SIGCHLD, /* Child died */ | |
414 | SIGTERM, /* Reexecute daemon */ | |
415 | SIGHUP, /* Reload configuration */ | |
416 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
417 | SIGUSR2, /* systemd: dump status */ | |
418 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
419 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
420 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
421 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 422 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
423 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
424 | SIGRTMIN+3, /* systemd: start halt.target */ | |
425 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
426 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
427 | SIGRTMIN+6, /* systemd: start kexec.target */ |
428 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
429 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
430 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
431 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
432 | SIGRTMIN+20, /* systemd: enable status messages */ |
433 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
434 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
435 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 436 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
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 */ | |
440 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 441 | -1); |
ce578209 LP |
442 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
443 | ||
ef734fd6 | 444 | m->signal_watch.type = WATCH_SIGNAL; |
8742514c LP |
445 | m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
446 | if (m->signal_watch.fd < 0) | |
ce578209 LP |
447 | return -errno; |
448 | ||
ce578209 LP |
449 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) |
450 | return -errno; | |
451 | ||
67445f4e | 452 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 453 | return enable_special_signals(m); |
e1414003 | 454 | |
ce578209 LP |
455 | return 0; |
456 | } | |
457 | ||
e21fea24 | 458 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
459 | assert(m); |
460 | ||
e21fea24 KS |
461 | if (m->running_as == SYSTEMD_SYSTEM) { |
462 | /* The system manager always starts with a clean | |
463 | * environment for its children. It does not import | |
464 | * the kernel or the parents exported variables. | |
465 | * | |
466 | * The initial passed environ is untouched to keep | |
467 | * /proc/self/environ valid; it is used for tagging | |
468 | * the init process inside containers. */ | |
43638332 ZJS |
469 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
470 | NULL); | |
e21fea24 KS |
471 | |
472 | /* Import locale variables LC_*= from configuration */ | |
473 | locale_setup(&m->environment); | |
474 | } else | |
475 | /* The user manager passes its own environment | |
476 | * along to its children. */ | |
477 | m->environment = strv_copy(environ); | |
71ecc858 | 478 | |
e21fea24 KS |
479 | if (!m->environment) |
480 | return -ENOMEM; | |
8b55b8c4 | 481 | |
e21fea24 | 482 | return 0; |
71ecc858 LP |
483 | } |
484 | ||
6fa48533 | 485 | int manager_new(SystemdRunningAs running_as, bool reexecuting, Manager **_m) { |
ce578209 | 486 | Manager *m; |
8e274523 LP |
487 | int r = -ENOMEM; |
488 | ||
489 | assert(_m); | |
a5dab5ce | 490 | assert(running_as >= 0); |
67445f4e | 491 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 492 | |
915b3753 LP |
493 | m = new0(Manager, 1); |
494 | if (!m) | |
8e274523 | 495 | return -ENOMEM; |
60918275 | 496 | |
4f8d551f ZC |
497 | #ifdef ENABLE_EFI |
498 | if (detect_container(NULL) <= 0) | |
c51d84dc | 499 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
500 | #endif |
501 | ||
a5dab5ce | 502 | m->running_as = running_as; |
cbd37330 | 503 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 504 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 505 | m->pin_cgroupfs_fd = -1; |
31a7eb86 | 506 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
80876c20 | 507 | |
8742514c LP |
508 | watch_init(&m->signal_watch); |
509 | watch_init(&m->mount_watch); | |
510 | watch_init(&m->swap_watch); | |
511 | watch_init(&m->udev_watch); | |
512 | watch_init(&m->time_change_watch); | |
03b717a3 | 513 | watch_init(&m->jobs_in_progress_watch); |
8742514c LP |
514 | |
515 | m->epoll_fd = m->dev_autofs_fd = -1; | |
ea430986 | 516 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 517 | |
e21fea24 KS |
518 | r = manager_default_environment(m); |
519 | if (r < 0) | |
1137a57c LP |
520 | goto fail; |
521 | ||
87f0e418 | 522 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
523 | goto fail; |
524 | ||
525 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
526 | goto fail; | |
527 | ||
9152c765 LP |
528 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
529 | goto fail; | |
530 | ||
4ad49000 LP |
531 | m->cgroup_unit = hashmap_new(string_hash_func, string_compare_func); |
532 | if (!m->cgroup_unit) | |
8e274523 LP |
533 | goto fail; |
534 | ||
6fa48533 LP |
535 | m->watch_bus = hashmap_new(string_hash_func, string_compare_func); |
536 | if (!m->watch_bus) | |
05e343b7 LP |
537 | goto fail; |
538 | ||
8742514c LP |
539 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
540 | if (m->epoll_fd < 0) | |
541 | goto fail; | |
542 | ||
543 | r = manager_setup_signals(m); | |
544 | if (r < 0) | |
9152c765 LP |
545 | goto fail; |
546 | ||
8742514c LP |
547 | r = manager_setup_cgroup(m); |
548 | if (r < 0) | |
8e274523 LP |
549 | goto fail; |
550 | ||
8742514c LP |
551 | r = manager_setup_notify(m); |
552 | if (r < 0) | |
9152c765 LP |
553 | goto fail; |
554 | ||
8742514c LP |
555 | r = manager_setup_time_change(m); |
556 | if (r < 0) | |
8c47c732 LP |
557 | goto fail; |
558 | ||
f278026d | 559 | /* Try to connect to the busses, if possible. */ |
ed002560 AK |
560 | if ((running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) || |
561 | running_as == SYSTEMD_SYSTEM) { | |
6fa48533 | 562 | r = bus_init(m, reexecuting || running_as != SYSTEMD_SYSTEM); |
ed002560 AK |
563 | if (r < 0) |
564 | goto fail; | |
565 | } else | |
566 | log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set..."); | |
ea430986 | 567 | |
72bc8d00 LP |
568 | m->taint_usr = dir_is_empty("/usr") > 0; |
569 | ||
8e274523 LP |
570 | *_m = m; |
571 | return 0; | |
60918275 LP |
572 | |
573 | fail: | |
574 | manager_free(m); | |
8e274523 | 575 | return r; |
60918275 LP |
576 | } |
577 | ||
23a177ef | 578 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 579 | Unit *u; |
23a177ef LP |
580 | unsigned n = 0; |
581 | ||
582 | assert(m); | |
583 | ||
595ed347 MS |
584 | while ((u = m->cleanup_queue)) { |
585 | assert(u->in_cleanup_queue); | |
23a177ef | 586 | |
595ed347 | 587 | unit_free(u); |
23a177ef LP |
588 | n++; |
589 | } | |
590 | ||
591 | return n; | |
592 | } | |
593 | ||
eced69b3 | 594 | enum { |
35b8ca3a | 595 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
596 | GC_OFFSET_UNSURE, /* No clue */ |
597 | GC_OFFSET_GOOD, /* We still need this unit */ | |
598 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
599 | _GC_OFFSET_MAX | |
600 | }; | |
601 | ||
602 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
603 | Iterator i; |
604 | Unit *other; | |
eced69b3 | 605 | bool is_bad; |
701cc384 LP |
606 | |
607 | assert(u); | |
608 | ||
ac155bb8 MS |
609 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
610 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
611 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
612 | return; |
613 | ||
ac155bb8 | 614 | if (u->in_cleanup_queue) |
701cc384 LP |
615 | goto bad; |
616 | ||
617 | if (unit_check_gc(u)) | |
618 | goto good; | |
619 | ||
ac155bb8 | 620 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
621 | |
622 | is_bad = true; | |
623 | ||
ac155bb8 | 624 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
625 | unit_gc_sweep(other, gc_marker); |
626 | ||
ac155bb8 | 627 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 628 | goto good; |
eced69b3 | 629 | |
ac155bb8 | 630 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 631 | is_bad = false; |
701cc384 LP |
632 | } |
633 | ||
eced69b3 LP |
634 | if (is_bad) |
635 | goto bad; | |
636 | ||
637 | /* We were unable to find anything out about this entry, so | |
638 | * let's investigate it later */ | |
ac155bb8 | 639 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
640 | unit_add_to_gc_queue(u); |
641 | return; | |
642 | ||
701cc384 | 643 | bad: |
eced69b3 LP |
644 | /* We definitely know that this one is not useful anymore, so |
645 | * let's mark it for deletion */ | |
ac155bb8 | 646 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 647 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
648 | return; |
649 | ||
650 | good: | |
ac155bb8 | 651 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
652 | } |
653 | ||
654 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 655 | Unit *u; |
701cc384 | 656 | unsigned n = 0; |
eced69b3 | 657 | unsigned gc_marker; |
701cc384 LP |
658 | |
659 | assert(m); | |
660 | ||
cf1265e1 | 661 | /* log_debug("Running GC..."); */ |
701cc384 | 662 | |
eced69b3 LP |
663 | m->gc_marker += _GC_OFFSET_MAX; |
664 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 665 | m->gc_marker = 1; |
701cc384 | 666 | |
eced69b3 LP |
667 | gc_marker = m->gc_marker; |
668 | ||
595ed347 MS |
669 | while ((u = m->gc_queue)) { |
670 | assert(u->in_gc_queue); | |
701cc384 | 671 | |
595ed347 | 672 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 673 | |
595ed347 MS |
674 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
675 | u->in_gc_queue = false; | |
701cc384 LP |
676 | |
677 | n++; | |
678 | ||
595ed347 MS |
679 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
680 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 681 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
682 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
683 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
684 | } |
685 | } | |
686 | ||
687 | m->n_in_gc_queue = 0; | |
701cc384 LP |
688 | |
689 | return n; | |
690 | } | |
691 | ||
a16e1123 | 692 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 693 | Unit *u; |
60918275 LP |
694 | |
695 | assert(m); | |
696 | ||
87f0e418 LP |
697 | while ((u = hashmap_first(m->units))) |
698 | unit_free(u); | |
964e0949 LP |
699 | |
700 | manager_dispatch_cleanup_queue(m); | |
701 | ||
702 | assert(!m->load_queue); | |
703 | assert(!m->run_queue); | |
704 | assert(!m->dbus_unit_queue); | |
705 | assert(!m->dbus_job_queue); | |
706 | assert(!m->cleanup_queue); | |
707 | assert(!m->gc_queue); | |
708 | ||
964e0949 LP |
709 | assert(hashmap_isempty(m->jobs)); |
710 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
711 | |
712 | m->n_on_console = 0; | |
713 | m->n_running_jobs = 0; | |
a16e1123 LP |
714 | } |
715 | ||
31a7eb86 ZJS |
716 | static void close_idle_pipe(Manager *m) { |
717 | close_pipe(m->idle_pipe); | |
718 | close_pipe(m->idle_pipe + 2); | |
719 | } | |
720 | ||
a16e1123 LP |
721 | void manager_free(Manager *m) { |
722 | UnitType c; | |
c93ff2e9 | 723 | int i; |
87f0e418 | 724 | |
a16e1123 LP |
725 | assert(m); |
726 | ||
727 | manager_clear_jobs_and_units(m); | |
23a177ef | 728 | |
7824bbeb LP |
729 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
730 | if (unit_vtable[c]->shutdown) | |
731 | unit_vtable[c]->shutdown(m); | |
732 | ||
a16e1123 LP |
733 | /* If we reexecute ourselves, we keep the root cgroup |
734 | * around */ | |
c6c18be3 | 735 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 736 | |
5a1e9937 LP |
737 | manager_undo_generators(m); |
738 | ||
5e8d1c9a | 739 | bus_done(m); |
ea430986 | 740 | |
87f0e418 | 741 | hashmap_free(m->units); |
60918275 | 742 | hashmap_free(m->jobs); |
9152c765 | 743 | hashmap_free(m->watch_pids); |
05e343b7 | 744 | hashmap_free(m->watch_bus); |
9152c765 LP |
745 | |
746 | if (m->epoll_fd >= 0) | |
a16e1123 | 747 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 748 | if (m->signal_watch.fd >= 0) |
a16e1123 | 749 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
750 | if (m->notify_watch.fd >= 0) |
751 | close_nointr_nofail(m->notify_watch.fd); | |
8742514c LP |
752 | if (m->time_change_watch.fd >= 0) |
753 | close_nointr_nofail(m->time_change_watch.fd); | |
03b717a3 MS |
754 | if (m->jobs_in_progress_watch.fd >= 0) |
755 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
60918275 | 756 | |
c952c6ec LP |
757 | free(m->notify_socket); |
758 | ||
84e3543e | 759 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 760 | strv_free(m->environment); |
036643a2 | 761 | |
4ad49000 | 762 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 763 | set_free_free(m->unit_path_cache); |
33be102a | 764 | |
31a7eb86 | 765 | close_idle_pipe(m); |
f2b68789 | 766 | |
664f88a7 LP |
767 | free(m->switch_root); |
768 | free(m->switch_root_init); | |
769 | ||
c93ff2e9 FC |
770 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
771 | free(m->rlimit[i]); | |
772 | ||
a57f7e2c LP |
773 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
774 | hashmap_free(m->units_requiring_mounts_for); | |
775 | ||
60918275 LP |
776 | free(m); |
777 | } | |
778 | ||
a16e1123 LP |
779 | int manager_enumerate(Manager *m) { |
780 | int r = 0, q; | |
f50e0a01 | 781 | UnitType c; |
f50e0a01 LP |
782 | |
783 | assert(m); | |
784 | ||
a16e1123 LP |
785 | /* Let's ask every type to load all units from disk/kernel |
786 | * that it might know */ | |
f50e0a01 | 787 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
788 | if (unit_vtable[c]->enumerate) { |
789 | q = unit_vtable[c]->enumerate(m); | |
790 | if (q < 0) | |
a16e1123 | 791 | r = q; |
a57f7e2c | 792 | } |
f50e0a01 LP |
793 | |
794 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
795 | return r; |
796 | } | |
797 | ||
798 | int manager_coldplug(Manager *m) { | |
799 | int r = 0, q; | |
800 | Iterator i; | |
801 | Unit *u; | |
802 | char *k; | |
803 | ||
804 | assert(m); | |
f50e0a01 LP |
805 | |
806 | /* Then, let's set up their initial state. */ | |
807 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
808 | ||
809 | /* ignore aliases */ | |
ac155bb8 | 810 | if (u->id != k) |
f50e0a01 LP |
811 | continue; |
812 | ||
cca098b0 LP |
813 | if ((q = unit_coldplug(u)) < 0) |
814 | r = q; | |
f50e0a01 LP |
815 | } |
816 | ||
a16e1123 LP |
817 | return r; |
818 | } | |
819 | ||
fe51822e LP |
820 | static void manager_build_unit_path_cache(Manager *m) { |
821 | char **i; | |
7fd1b19b | 822 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
823 | int r; |
824 | ||
825 | assert(m); | |
826 | ||
827 | set_free_free(m->unit_path_cache); | |
828 | ||
874310b7 ZJS |
829 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
830 | if (!m->unit_path_cache) { | |
fe51822e LP |
831 | log_error("Failed to allocate unit path cache."); |
832 | return; | |
833 | } | |
834 | ||
835 | /* This simply builds a list of files we know exist, so that | |
836 | * we don't always have to go to disk */ | |
837 | ||
838 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
839 | struct dirent *de; | |
840 | ||
bd0af849 ZJS |
841 | d = opendir(*i); |
842 | if (!d) { | |
874310b7 ZJS |
843 | if (errno != ENOENT) |
844 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
845 | continue; |
846 | } | |
847 | ||
848 | while ((de = readdir(d))) { | |
849 | char *p; | |
850 | ||
851 | if (ignore_file(de->d_name)) | |
852 | continue; | |
853 | ||
b7def684 | 854 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 855 | if (!p) { |
fe51822e LP |
856 | r = -ENOMEM; |
857 | goto fail; | |
858 | } | |
859 | ||
ef42202a ZJS |
860 | r = set_consume(m->unit_path_cache, p); |
861 | if (r < 0) | |
fe51822e | 862 | goto fail; |
fe51822e LP |
863 | } |
864 | ||
865 | closedir(d); | |
866 | d = NULL; | |
867 | } | |
868 | ||
869 | return; | |
870 | ||
871 | fail: | |
872 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
873 | ||
874 | set_free_free(m->unit_path_cache); | |
875 | m->unit_path_cache = NULL; | |
fe51822e LP |
876 | } |
877 | ||
a16e1123 LP |
878 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
879 | int r, q; | |
880 | ||
881 | assert(m); | |
882 | ||
518d10e9 | 883 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 884 | manager_run_generators(m); |
518d10e9 | 885 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 886 | |
07719a21 LP |
887 | r = lookup_paths_init( |
888 | &m->lookup_paths, m->running_as, true, | |
889 | m->generator_unit_path, | |
890 | m->generator_unit_path_early, | |
891 | m->generator_unit_path_late); | |
892 | if (r < 0) | |
893 | return r; | |
894 | ||
fe51822e LP |
895 | manager_build_unit_path_cache(m); |
896 | ||
9f611ad8 LP |
897 | /* If we will deserialize make sure that during enumeration |
898 | * this is already known, so we increase the counter here | |
899 | * already */ | |
900 | if (serialization) | |
a7556052 | 901 | m->n_reloading ++; |
9f611ad8 | 902 | |
a16e1123 | 903 | /* First, enumerate what we can from all config files */ |
d9acfb71 | 904 | dual_timestamp_get(&m->unitsload_start_timestamp); |
a16e1123 | 905 | r = manager_enumerate(m); |
d9acfb71 | 906 | dual_timestamp_get(&m->unitsload_finish_timestamp); |
a16e1123 LP |
907 | |
908 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
909 | if (serialization) { |
910 | q = manager_deserialize(m, serialization, fds); | |
911 | if (q < 0) | |
a16e1123 | 912 | r = q; |
07719a21 | 913 | } |
a16e1123 | 914 | |
01e10de3 LP |
915 | /* Any fds left? Find some unit which wants them. This is |
916 | * useful to allow container managers to pass some file | |
917 | * descriptors to us pre-initialized. This enables | |
918 | * socket-based activation of entire containers. */ | |
919 | if (fdset_size(fds) > 0) { | |
920 | q = manager_distribute_fds(m, fds); | |
921 | if (q < 0) | |
922 | r = q; | |
923 | } | |
924 | ||
a16e1123 | 925 | /* Third, fire things up! */ |
07719a21 LP |
926 | q = manager_coldplug(m); |
927 | if (q < 0) | |
a16e1123 LP |
928 | r = q; |
929 | ||
9f611ad8 | 930 | if (serialization) { |
a7556052 LP |
931 | assert(m->n_reloading > 0); |
932 | m->n_reloading --; | |
71445ae7 LP |
933 | |
934 | /* Let's wait for the UnitNew/JobNew messages being | |
935 | * sent, before we notify that the reload is | |
936 | * finished */ | |
937 | m->send_reloading_done = true; | |
9f611ad8 LP |
938 | } |
939 | ||
a16e1123 | 940 | return r; |
f50e0a01 LP |
941 | } |
942 | ||
398ef8ba | 943 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 944 | int r; |
7527cb52 | 945 | Transaction *tr; |
e5b5ae50 LP |
946 | |
947 | assert(m); | |
948 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 949 | assert(unit); |
e5b5ae50 | 950 | assert(mode < _JOB_MODE_MAX); |
60918275 | 951 | |
398ef8ba LP |
952 | if (mode == JOB_ISOLATE && type != JOB_START) { |
953 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 954 | return -EINVAL; |
398ef8ba | 955 | } |
c497c7a9 | 956 | |
ac155bb8 | 957 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
958 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
959 | return -EPERM; | |
960 | } | |
961 | ||
66870f90 ZJS |
962 | log_debug_unit(unit->id, |
963 | "Trying to enqueue job %s/%s/%s", unit->id, | |
964 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 965 | |
e0209d83 MS |
966 | job_type_collapse(&type, unit); |
967 | ||
23ade460 | 968 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
969 | if (!tr) |
970 | return -ENOMEM; | |
11dd41ce | 971 | |
7527cb52 MS |
972 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
973 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 974 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
975 | if (r < 0) |
976 | goto tr_abort; | |
c497c7a9 | 977 | |
7527cb52 MS |
978 | if (mode == JOB_ISOLATE) { |
979 | r = transaction_add_isolate_jobs(tr, m); | |
980 | if (r < 0) | |
981 | goto tr_abort; | |
982 | } | |
983 | ||
984 | r = transaction_activate(tr, m, mode, e); | |
985 | if (r < 0) | |
986 | goto tr_abort; | |
e5b5ae50 | 987 | |
66870f90 ZJS |
988 | log_debug_unit(unit->id, |
989 | "Enqueued job %s/%s as %u", unit->id, | |
990 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 991 | |
e5b5ae50 | 992 | if (_ret) |
b94fbd30 | 993 | *_ret = tr->anchor_job; |
60918275 | 994 | |
7527cb52 | 995 | transaction_free(tr); |
e5b5ae50 | 996 | return 0; |
7527cb52 MS |
997 | |
998 | tr_abort: | |
999 | transaction_abort(tr); | |
1000 | transaction_free(tr); | |
1001 | return r; | |
e5b5ae50 | 1002 | } |
60918275 | 1003 | |
398ef8ba | 1004 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
1005 | Unit *unit; |
1006 | int r; | |
1007 | ||
1008 | assert(m); | |
1009 | assert(type < _JOB_TYPE_MAX); | |
1010 | assert(name); | |
1011 | assert(mode < _JOB_MODE_MAX); | |
1012 | ||
c3090674 LP |
1013 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1014 | if (r < 0) | |
28247076 LP |
1015 | return r; |
1016 | ||
398ef8ba | 1017 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1018 | } |
1019 | ||
60918275 LP |
1020 | Job *manager_get_job(Manager *m, uint32_t id) { |
1021 | assert(m); | |
1022 | ||
1023 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1024 | } | |
1025 | ||
87f0e418 | 1026 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1027 | assert(m); |
1028 | assert(name); | |
1029 | ||
87f0e418 | 1030 | return hashmap_get(m->units, name); |
60918275 LP |
1031 | } |
1032 | ||
c1e1601e | 1033 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1034 | Unit *u; |
c1e1601e | 1035 | unsigned n = 0; |
60918275 LP |
1036 | |
1037 | assert(m); | |
1038 | ||
223dabab LP |
1039 | /* Make sure we are not run recursively */ |
1040 | if (m->dispatching_load_queue) | |
c1e1601e | 1041 | return 0; |
223dabab LP |
1042 | |
1043 | m->dispatching_load_queue = true; | |
1044 | ||
87f0e418 | 1045 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1046 | * tries to load its data until the queue is empty */ |
1047 | ||
595ed347 MS |
1048 | while ((u = m->load_queue)) { |
1049 | assert(u->in_load_queue); | |
034c6ed7 | 1050 | |
595ed347 | 1051 | unit_load(u); |
c1e1601e | 1052 | n++; |
60918275 LP |
1053 | } |
1054 | ||
223dabab | 1055 | m->dispatching_load_queue = false; |
c1e1601e | 1056 | return n; |
60918275 LP |
1057 | } |
1058 | ||
c2756a68 LP |
1059 | int manager_load_unit_prepare( |
1060 | Manager *m, | |
1061 | const char *name, | |
1062 | const char *path, | |
1063 | DBusError *e, | |
1064 | Unit **_ret) { | |
1065 | ||
87f0e418 | 1066 | Unit *ret; |
7d17cfbc | 1067 | UnitType t; |
60918275 LP |
1068 | int r; |
1069 | ||
1070 | assert(m); | |
9e2f7c11 | 1071 | assert(name || path); |
60918275 | 1072 | |
db06e3b6 LP |
1073 | /* This will prepare the unit for loading, but not actually |
1074 | * load anything from disk. */ | |
0301abf4 | 1075 | |
398ef8ba LP |
1076 | if (path && !is_path(path)) { |
1077 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 1078 | return -EINVAL; |
398ef8ba | 1079 | } |
9e2f7c11 LP |
1080 | |
1081 | if (!name) | |
9eb977db | 1082 | name = path_get_file_name(path); |
9e2f7c11 | 1083 | |
7d17cfbc MS |
1084 | t = unit_name_to_type(name); |
1085 | ||
5f739699 | 1086 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 1087 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 1088 | return -EINVAL; |
398ef8ba | 1089 | } |
60918275 | 1090 | |
7d17cfbc MS |
1091 | ret = manager_get_unit(m, name); |
1092 | if (ret) { | |
034c6ed7 | 1093 | *_ret = ret; |
413d6313 | 1094 | return 1; |
034c6ed7 | 1095 | } |
60918275 | 1096 | |
7d17cfbc MS |
1097 | ret = unit_new(m, unit_vtable[t]->object_size); |
1098 | if (!ret) | |
60918275 LP |
1099 | return -ENOMEM; |
1100 | ||
7d17cfbc | 1101 | if (path) { |
ac155bb8 MS |
1102 | ret->fragment_path = strdup(path); |
1103 | if (!ret->fragment_path) { | |
0301abf4 LP |
1104 | unit_free(ret); |
1105 | return -ENOMEM; | |
1106 | } | |
7d17cfbc | 1107 | } |
0301abf4 | 1108 | |
1058cbf2 ZJS |
1109 | r = unit_add_name(ret, name); |
1110 | if (r < 0) { | |
87f0e418 | 1111 | unit_free(ret); |
1ffba6fe | 1112 | return r; |
60918275 LP |
1113 | } |
1114 | ||
87f0e418 | 1115 | unit_add_to_load_queue(ret); |
c1e1601e | 1116 | unit_add_to_dbus_queue(ret); |
949061f0 | 1117 | unit_add_to_gc_queue(ret); |
c1e1601e | 1118 | |
db06e3b6 LP |
1119 | if (_ret) |
1120 | *_ret = ret; | |
1121 | ||
1122 | return 0; | |
1123 | } | |
1124 | ||
c2756a68 LP |
1125 | int manager_load_unit( |
1126 | Manager *m, | |
1127 | const char *name, | |
1128 | const char *path, | |
1129 | DBusError *e, | |
1130 | Unit **_ret) { | |
1131 | ||
db06e3b6 LP |
1132 | int r; |
1133 | ||
1134 | assert(m); | |
1135 | ||
1136 | /* This will load the service information files, but not actually | |
1137 | * start any services or anything. */ | |
1138 | ||
c3090674 LP |
1139 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1140 | if (r != 0) | |
db06e3b6 LP |
1141 | return r; |
1142 | ||
f50e0a01 | 1143 | manager_dispatch_load_queue(m); |
60918275 | 1144 | |
9e2f7c11 | 1145 | if (_ret) |
413d6313 | 1146 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1147 | |
60918275 LP |
1148 | return 0; |
1149 | } | |
a66d02c3 | 1150 | |
cea8e32e | 1151 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1152 | Iterator i; |
a66d02c3 LP |
1153 | Job *j; |
1154 | ||
1155 | assert(s); | |
1156 | assert(f); | |
1157 | ||
034c6ed7 | 1158 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1159 | job_dump(j, f, prefix); |
a66d02c3 LP |
1160 | } |
1161 | ||
87f0e418 | 1162 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1163 | Iterator i; |
87f0e418 | 1164 | Unit *u; |
11dd41ce | 1165 | const char *t; |
a66d02c3 LP |
1166 | |
1167 | assert(s); | |
1168 | assert(f); | |
1169 | ||
87f0e418 | 1170 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1171 | if (u->id == t) |
87f0e418 | 1172 | unit_dump(u, f, prefix); |
a66d02c3 | 1173 | } |
7fad411c LP |
1174 | |
1175 | void manager_clear_jobs(Manager *m) { | |
1176 | Job *j; | |
1177 | ||
1178 | assert(m); | |
1179 | ||
7fad411c | 1180 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1181 | /* No need to recurse. We're cancelling all jobs. */ |
1182 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1183 | } |
83c60c9f | 1184 | |
c1e1601e | 1185 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1186 | Job *j; |
c1e1601e | 1187 | unsigned n = 0; |
83c60c9f | 1188 | |
034c6ed7 | 1189 | if (m->dispatching_run_queue) |
c1e1601e | 1190 | return 0; |
034c6ed7 LP |
1191 | |
1192 | m->dispatching_run_queue = true; | |
9152c765 | 1193 | |
034c6ed7 | 1194 | while ((j = m->run_queue)) { |
ac1135be | 1195 | assert(j->installed); |
034c6ed7 LP |
1196 | assert(j->in_run_queue); |
1197 | ||
1198 | job_run_and_invalidate(j); | |
c1e1601e | 1199 | n++; |
9152c765 | 1200 | } |
034c6ed7 LP |
1201 | |
1202 | m->dispatching_run_queue = false; | |
03b717a3 | 1203 | |
a0b64226 | 1204 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1205 | manager_watch_jobs_in_progress(m); |
1206 | ||
31a7eb86 ZJS |
1207 | if (m->n_on_console > 0) |
1208 | manager_watch_idle_pipe(m); | |
1209 | ||
c1e1601e LP |
1210 | return n; |
1211 | } | |
1212 | ||
1213 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
1214 | Job *j; | |
595ed347 | 1215 | Unit *u; |
c1e1601e LP |
1216 | unsigned n = 0; |
1217 | ||
1218 | assert(m); | |
1219 | ||
1220 | if (m->dispatching_dbus_queue) | |
1221 | return 0; | |
1222 | ||
1223 | m->dispatching_dbus_queue = true; | |
1224 | ||
595ed347 MS |
1225 | while ((u = m->dbus_unit_queue)) { |
1226 | assert(u->in_dbus_queue); | |
c1e1601e | 1227 | |
595ed347 | 1228 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1229 | n++; |
1230 | } | |
1231 | ||
1232 | while ((j = m->dbus_job_queue)) { | |
1233 | assert(j->in_dbus_queue); | |
1234 | ||
1235 | bus_job_send_change_signal(j); | |
1236 | n++; | |
1237 | } | |
1238 | ||
1239 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1240 | |
1241 | if (m->send_reloading_done) { | |
1242 | m->send_reloading_done = false; | |
1243 | ||
1244 | bus_broadcast_reloading(m, false); | |
1245 | } | |
1246 | ||
c1e1601e | 1247 | return n; |
9152c765 LP |
1248 | } |
1249 | ||
8c47c732 LP |
1250 | static int manager_process_notify_fd(Manager *m) { |
1251 | ssize_t n; | |
1252 | ||
1253 | assert(m); | |
1254 | ||
1255 | for (;;) { | |
1256 | char buf[4096]; | |
b92bea5d ZJS |
1257 | struct iovec iovec = { |
1258 | .iov_base = buf, | |
1259 | .iov_len = sizeof(buf)-1, | |
1260 | }; | |
1261 | ||
8c47c732 LP |
1262 | union { |
1263 | struct cmsghdr cmsghdr; | |
1264 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1265 | } control = {}; |
1266 | ||
1267 | struct msghdr msghdr = { | |
1268 | .msg_iov = &iovec, | |
1269 | .msg_iovlen = 1, | |
1270 | .msg_control = &control, | |
1271 | .msg_controllen = sizeof(control), | |
1272 | }; | |
1273 | struct ucred *ucred; | |
8c47c732 | 1274 | Unit *u; |
7fd1b19b | 1275 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1276 | |
bd0af849 ZJS |
1277 | n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT); |
1278 | if (n <= 0) { | |
b92bea5d | 1279 | if (n == 0) |
8c47c732 LP |
1280 | return -EIO; |
1281 | ||
f6144808 | 1282 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1283 | break; |
1284 | ||
1285 | return -errno; | |
1286 | } | |
1287 | ||
1288 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1289 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1290 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1291 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1292 | log_warning("Received notify message without credentials. Ignoring."); | |
1293 | continue; | |
1294 | } | |
1295 | ||
1296 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1297 | ||
bd0af849 ZJS |
1298 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1299 | if (!u) { | |
4ad49000 | 1300 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1301 | if (!u) { |
7989e1f2 | 1302 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1303 | continue; |
1304 | } | |
bd0af849 | 1305 | } |
8c47c732 | 1306 | |
8c40acf7 LP |
1307 | assert((size_t) n < sizeof(buf)); |
1308 | buf[n] = 0; | |
bd0af849 ZJS |
1309 | tags = strv_split(buf, "\n\r"); |
1310 | if (!tags) | |
1311 | return log_oom(); | |
8c47c732 | 1312 | |
66870f90 | 1313 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1314 | |
1315 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1316 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1317 | } |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
034c6ed7 | 1322 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1323 | assert(m); |
1324 | ||
1325 | for (;;) { | |
b92bea5d | 1326 | siginfo_t si = {}; |
87f0e418 | 1327 | Unit *u; |
8c47c732 | 1328 | int r; |
9152c765 | 1329 | |
4112df16 LP |
1330 | /* First we call waitd() for a PID and do not reap the |
1331 | * zombie. That way we can still access /proc/$PID for | |
1332 | * it while it is a zombie. */ | |
1333 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1334 | |
1335 | if (errno == ECHILD) | |
1336 | break; | |
1337 | ||
4112df16 LP |
1338 | if (errno == EINTR) |
1339 | continue; | |
1340 | ||
9152c765 | 1341 | return -errno; |
acbb0225 | 1342 | } |
9152c765 | 1343 | |
4112df16 | 1344 | if (si.si_pid <= 0) |
9152c765 LP |
1345 | break; |
1346 | ||
15d5d9d9 | 1347 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1348 | _cleanup_free_ char *name = NULL; |
4112df16 | 1349 | |
87d2c1ff | 1350 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1351 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1352 | } |
1353 | ||
8c47c732 LP |
1354 | /* Let's flush any message the dying child might still |
1355 | * have queued for us. This ensures that the process | |
1356 | * still exists in /proc so that we can figure out | |
1357 | * which cgroup and hence unit it belongs to. */ | |
bd0af849 ZJS |
1358 | r = manager_process_notify_fd(m); |
1359 | if (r < 0) | |
8c47c732 LP |
1360 | return r; |
1361 | ||
1362 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1363 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1364 | if (!u) | |
4ad49000 | 1365 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1366 | |
4112df16 LP |
1367 | /* And now, we actually reap the zombie. */ |
1368 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1369 | if (errno == EINTR) | |
1370 | continue; | |
1371 | ||
1372 | return -errno; | |
1373 | } | |
1374 | ||
034c6ed7 LP |
1375 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1376 | continue; | |
1377 | ||
bb00e604 LP |
1378 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1379 | (long unsigned) si.si_pid, | |
4112df16 LP |
1380 | sigchld_code_to_string(si.si_code), |
1381 | si.si_status, | |
d06dacd0 LP |
1382 | strna(si.si_code == CLD_EXITED |
1383 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1384 | : signal_to_string(si.si_status))); | |
acbb0225 | 1385 | |
8c47c732 | 1386 | if (!u) |
9152c765 LP |
1387 | continue; |
1388 | ||
66870f90 ZJS |
1389 | log_debug_unit(u->id, |
1390 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1391 | |
c6c18be3 | 1392 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1393 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1394 | } |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
7d793605 | 1399 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1400 | int r; |
398ef8ba LP |
1401 | DBusError error; |
1402 | ||
1403 | dbus_error_init(&error); | |
1404 | ||
66870f90 | 1405 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1406 | |
bd0af849 ZJS |
1407 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1408 | if (r < 0) | |
66870f90 ZJS |
1409 | log_error_unit(name, |
1410 | "Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1411 | |
398ef8ba | 1412 | dbus_error_free(&error); |
a1b256b0 LP |
1413 | |
1414 | return r; | |
28247076 LP |
1415 | } |
1416 | ||
a16e1123 | 1417 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1418 | ssize_t n; |
1419 | struct signalfd_siginfo sfsi; | |
1420 | bool sigchld = false; | |
1421 | ||
1422 | assert(m); | |
1423 | ||
1424 | for (;;) { | |
57cb4adf LP |
1425 | n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi)); |
1426 | if (n != sizeof(sfsi)) { | |
9152c765 LP |
1427 | |
1428 | if (n >= 0) | |
1429 | return -EIO; | |
1430 | ||
63090775 | 1431 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1432 | break; |
9152c765 LP |
1433 | |
1434 | return -errno; | |
1435 | } | |
1436 | ||
67370238 LP |
1437 | if (sfsi.ssi_pid > 0) { |
1438 | char *p = NULL; | |
1439 | ||
87d2c1ff | 1440 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1441 | |
67370238 | 1442 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1443 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1444 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1445 | free(p); | |
1446 | } else | |
4e240ab0 | 1447 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1448 | |
b9cd2ec1 LP |
1449 | switch (sfsi.ssi_signo) { |
1450 | ||
4112df16 | 1451 | case SIGCHLD: |
9152c765 | 1452 | sigchld = true; |
b9cd2ec1 LP |
1453 | break; |
1454 | ||
6632c602 | 1455 | case SIGTERM: |
67445f4e | 1456 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1457 | /* This is for compatibility with the |
1458 | * original sysvinit */ | |
e11dc4a2 | 1459 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1460 | break; |
1461 | } | |
84e9af1e | 1462 | |
a1b256b0 | 1463 | /* Fall through */ |
e11dc4a2 LP |
1464 | |
1465 | case SIGINT: | |
67445f4e | 1466 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1467 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1468 | break; |
1469 | } | |
1470 | ||
a1b256b0 | 1471 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1472 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1473 | m->exit_code = MANAGER_EXIT; |
1474 | return 0; | |
1475 | } | |
1476 | ||
1477 | break; | |
84e9af1e | 1478 | |
28247076 | 1479 | case SIGWINCH: |
67445f4e | 1480 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1481 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1482 | |
28247076 LP |
1483 | /* This is a nop on non-init */ |
1484 | break; | |
84e9af1e | 1485 | |
28247076 | 1486 | case SIGPWR: |
67445f4e | 1487 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1488 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1489 | |
28247076 | 1490 | /* This is a nop on non-init */ |
84e9af1e | 1491 | break; |
6632c602 | 1492 | |
1005d14f | 1493 | case SIGUSR1: { |
57ee42ce LP |
1494 | Unit *u; |
1495 | ||
1496 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1497 | ||
1498 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1499 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1500 | bus_init(m, true); |
57ee42ce LP |
1501 | } |
1502 | ||
1503 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1504 | log_info("Loading D-Bus service..."); | |
7d793605 | 1505 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1506 | } |
1507 | ||
1508 | break; | |
1509 | } | |
1510 | ||
2149e37c LP |
1511 | case SIGUSR2: { |
1512 | FILE *f; | |
1513 | char *dump = NULL; | |
1514 | size_t size; | |
1515 | ||
1516 | if (!(f = open_memstream(&dump, &size))) { | |
1517 | log_warning("Failed to allocate memory stream."); | |
1518 | break; | |
1519 | } | |
1520 | ||
1521 | manager_dump_units(m, f, "\t"); | |
1522 | manager_dump_jobs(m, f, "\t"); | |
1523 | ||
1524 | if (ferror(f)) { | |
1525 | fclose(f); | |
1526 | free(dump); | |
1527 | log_warning("Failed to write status stream"); | |
1528 | break; | |
1529 | } | |
1530 | ||
1531 | fclose(f); | |
1532 | log_dump(LOG_INFO, dump); | |
1533 | free(dump); | |
1534 | ||
1005d14f | 1535 | break; |
2149e37c | 1536 | } |
1005d14f | 1537 | |
a16e1123 LP |
1538 | case SIGHUP: |
1539 | m->exit_code = MANAGER_RELOAD; | |
1540 | break; | |
1541 | ||
7d793605 | 1542 | default: { |
253ee27a | 1543 | |
0003d1ab LP |
1544 | /* Starting SIGRTMIN+0 */ |
1545 | static const char * const target_table[] = { | |
7d793605 LP |
1546 | [0] = SPECIAL_DEFAULT_TARGET, |
1547 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1548 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1549 | [3] = SPECIAL_HALT_TARGET, |
1550 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1551 | [5] = SPECIAL_REBOOT_TARGET, |
1552 | [6] = SPECIAL_KEXEC_TARGET | |
1553 | }; | |
1554 | ||
1555 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1556 | static const ManagerExitCode code_table[] = { | |
1557 | [0] = MANAGER_HALT, | |
1558 | [1] = MANAGER_POWEROFF, | |
1559 | [2] = MANAGER_REBOOT, | |
1560 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1561 | }; |
1562 | ||
1563 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1564 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1565 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1566 | manager_start_target(m, target_table[idx], | |
1567 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1568 | break; |
1569 | } | |
1570 | ||
0003d1ab LP |
1571 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1572 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1573 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1574 | break; | |
1575 | } | |
1576 | ||
0658666b LP |
1577 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1578 | ||
1579 | case 20: | |
1580 | log_debug("Enabling showing of status."); | |
27d340c7 | 1581 | manager_set_show_status(m, true); |
0658666b LP |
1582 | break; |
1583 | ||
1584 | case 21: | |
1585 | log_debug("Disabling showing of status."); | |
27d340c7 | 1586 | manager_set_show_status(m, false); |
0658666b LP |
1587 | break; |
1588 | ||
253ee27a LP |
1589 | case 22: |
1590 | log_set_max_level(LOG_DEBUG); | |
1591 | log_notice("Setting log level to debug."); | |
1592 | break; | |
1593 | ||
1594 | case 23: | |
1595 | log_set_max_level(LOG_INFO); | |
1596 | log_notice("Setting log level to info."); | |
1597 | break; | |
1598 | ||
600b704e LP |
1599 | case 24: |
1600 | if (m->running_as == SYSTEMD_USER) { | |
1601 | m->exit_code = MANAGER_EXIT; | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | /* This is a nop on init */ | |
1606 | break; | |
1607 | ||
4cfa2c99 LP |
1608 | case 26: |
1609 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1610 | log_notice("Setting log target to journal-or-kmsg."); | |
1611 | break; | |
1612 | ||
253ee27a LP |
1613 | case 27: |
1614 | log_set_target(LOG_TARGET_CONSOLE); | |
1615 | log_notice("Setting log target to console."); | |
1616 | break; | |
1617 | ||
1618 | case 28: | |
1619 | log_set_target(LOG_TARGET_KMSG); | |
1620 | log_notice("Setting log target to kmsg."); | |
1621 | break; | |
1622 | ||
1623 | case 29: | |
1624 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1625 | log_notice("Setting log target to syslog-or-kmsg."); | |
1626 | break; | |
1627 | ||
0658666b | 1628 | default: |
4e240ab0 | 1629 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1630 | } |
b9cd2ec1 | 1631 | } |
7d793605 | 1632 | } |
9152c765 LP |
1633 | } |
1634 | ||
1635 | if (sigchld) | |
034c6ed7 LP |
1636 | return manager_dispatch_sigchld(m); |
1637 | ||
1638 | return 0; | |
1639 | } | |
1640 | ||
a16e1123 | 1641 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1642 | int r; |
acbb0225 | 1643 | Watch *w; |
034c6ed7 LP |
1644 | |
1645 | assert(m); | |
1646 | assert(ev); | |
1647 | ||
3df5bf61 | 1648 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1649 | |
40dde66f LP |
1650 | if (w->type == WATCH_INVALID) |
1651 | return 0; | |
1652 | ||
acbb0225 | 1653 | switch (w->type) { |
034c6ed7 | 1654 | |
ef734fd6 | 1655 | case WATCH_SIGNAL: |
034c6ed7 | 1656 | |
acbb0225 | 1657 | /* An incoming signal? */ |
f94ea366 | 1658 | if (ev->events != EPOLLIN) |
acbb0225 | 1659 | return -EINVAL; |
034c6ed7 | 1660 | |
a16e1123 | 1661 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1662 | return r; |
034c6ed7 | 1663 | |
acbb0225 | 1664 | break; |
034c6ed7 | 1665 | |
8c47c732 LP |
1666 | case WATCH_NOTIFY: |
1667 | ||
1668 | /* An incoming daemon notification event? */ | |
1669 | if (ev->events != EPOLLIN) | |
1670 | return -EINVAL; | |
1671 | ||
1672 | if ((r = manager_process_notify_fd(m)) < 0) | |
1673 | return r; | |
1674 | ||
1675 | break; | |
1676 | ||
acbb0225 | 1677 | case WATCH_FD: |
034c6ed7 | 1678 | |
acbb0225 | 1679 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1680 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1681 | break; |
034c6ed7 | 1682 | |
faf919f1 LP |
1683 | case WATCH_UNIT_TIMER: |
1684 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1685 | uint64_t v; |
1686 | ssize_t k; | |
034c6ed7 | 1687 | |
acbb0225 | 1688 | /* Some timer event, to be dispatched to the units */ |
68b29a9f LP |
1689 | k = read(w->fd, &v, sizeof(v)); |
1690 | if (k != sizeof(v)) { | |
034c6ed7 | 1691 | |
acbb0225 LP |
1692 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1693 | break; | |
034c6ed7 | 1694 | |
8742514c | 1695 | log_error("Failed to read timer event counter: %s", k < 0 ? strerror(-k) : "Short read"); |
acbb0225 | 1696 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1697 | } |
1698 | ||
faf919f1 LP |
1699 | if (w->type == WATCH_UNIT_TIMER) |
1700 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1701 | else | |
1702 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1703 | break; |
1704 | } | |
1705 | ||
ef734fd6 LP |
1706 | case WATCH_MOUNT: |
1707 | /* Some mount table change, intended for the mount subsystem */ | |
1708 | mount_fd_event(m, ev->events); | |
1709 | break; | |
1710 | ||
4e434314 LP |
1711 | case WATCH_SWAP: |
1712 | /* Some swap table change, intended for the swap subsystem */ | |
1713 | swap_fd_event(m, ev->events); | |
1714 | break; | |
1715 | ||
f94ea366 LP |
1716 | case WATCH_UDEV: |
1717 | /* Some notification from udev, intended for the device subsystem */ | |
1718 | device_fd_event(m, ev->events); | |
1719 | break; | |
1720 | ||
ea430986 LP |
1721 | case WATCH_DBUS_WATCH: |
1722 | bus_watch_event(m, w, ev->events); | |
1723 | break; | |
1724 | ||
1725 | case WATCH_DBUS_TIMEOUT: | |
1726 | bus_timeout_event(m, w, ev->events); | |
1727 | break; | |
1728 | ||
8742514c LP |
1729 | case WATCH_TIME_CHANGE: { |
1730 | Unit *u; | |
1731 | Iterator i; | |
1732 | ||
1733 | log_struct(LOG_INFO, | |
1734 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1735 | "MESSAGE=Time has been changed", | |
1736 | NULL); | |
1737 | ||
1738 | /* Restart the watch */ | |
f1324eaa ES |
1739 | epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->time_change_watch.fd, |
1740 | NULL); | |
8742514c LP |
1741 | close_nointr_nofail(m->time_change_watch.fd); |
1742 | watch_init(&m->time_change_watch); | |
1743 | manager_setup_time_change(m); | |
1744 | ||
1745 | HASHMAP_FOREACH(u, m->units, i) { | |
1746 | if (UNIT_VTABLE(u)->time_change) | |
1747 | UNIT_VTABLE(u)->time_change(u); | |
1748 | } | |
1749 | ||
1750 | break; | |
1751 | } | |
1752 | ||
03b717a3 MS |
1753 | case WATCH_JOBS_IN_PROGRESS: { |
1754 | uint64_t v; | |
1755 | ||
1756 | /* not interested in the data */ | |
1757 | read(w->fd, &v, sizeof(v)); | |
1758 | ||
1759 | manager_print_jobs_in_progress(m); | |
1760 | break; | |
1761 | } | |
1762 | ||
31a7eb86 ZJS |
1763 | case WATCH_IDLE_PIPE: { |
1764 | m->no_console_output = true; | |
1765 | ||
1766 | manager_unwatch_idle_pipe(m); | |
1767 | close_idle_pipe(m); | |
1768 | break; | |
1769 | } | |
1770 | ||
acbb0225 | 1771 | default: |
c5fd1e57 | 1772 | log_error("event type=%i", w->type); |
acbb0225 | 1773 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1774 | } |
9152c765 LP |
1775 | |
1776 | return 0; | |
1777 | } | |
1778 | ||
1779 | int manager_loop(Manager *m) { | |
1780 | int r; | |
9152c765 | 1781 | |
fac9f8df | 1782 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1783 | |
9152c765 | 1784 | assert(m); |
a16e1123 | 1785 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1786 | |
fe51822e LP |
1787 | /* Release the path cache */ |
1788 | set_free_free(m->unit_path_cache); | |
1789 | m->unit_path_cache = NULL; | |
1790 | ||
b0c918b9 LP |
1791 | manager_check_finished(m); |
1792 | ||
a4312405 LP |
1793 | /* There might still be some zombies hanging around from |
1794 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1795 | r = manager_dispatch_sigchld(m); |
1796 | if (r < 0) | |
a4312405 LP |
1797 | return r; |
1798 | ||
a16e1123 | 1799 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1800 | struct epoll_event event; |
1801 | int n; | |
c757a65b | 1802 | int wait_msec = -1; |
9152c765 | 1803 | |
67445f4e | 1804 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1805 | watchdog_ping(); |
1806 | ||
ea430986 LP |
1807 | if (!ratelimit_test(&rl)) { |
1808 | /* Yay, something is going seriously wrong, pause a little */ | |
1809 | log_warning("Looping too fast. Throttling execution a little."); | |
1810 | sleep(1); | |
e96d6be7 | 1811 | continue; |
ea430986 LP |
1812 | } |
1813 | ||
37a8e683 | 1814 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1815 | continue; |
1816 | ||
cf1265e1 | 1817 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1818 | continue; |
1819 | ||
cf1265e1 | 1820 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1821 | continue; |
034c6ed7 | 1822 | |
cf1265e1 | 1823 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1824 | continue; |
1825 | ||
cf1265e1 | 1826 | if (manager_dispatch_run_queue(m) > 0) |
c1e1601e LP |
1827 | continue; |
1828 | ||
cf1265e1 | 1829 | if (bus_dispatch(m) > 0) |
4ad49000 LP |
1830 | continue; |
1831 | ||
c1e1601e | 1832 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1833 | continue; |
ea430986 | 1834 | |
e04aad61 LP |
1835 | if (swap_dispatch_reload(m) > 0) |
1836 | continue; | |
1837 | ||
c757a65b | 1838 | /* Sleep for half the watchdog time */ |
67445f4e | 1839 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
c757a65b LP |
1840 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); |
1841 | if (wait_msec <= 0) | |
1842 | wait_msec = 1; | |
1843 | } else | |
1844 | wait_msec = -1; | |
1845 | ||
e96d6be7 LP |
1846 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1847 | if (n < 0) { | |
9152c765 | 1848 | |
6089f4a9 | 1849 | if (errno == EINTR) |
9152c765 LP |
1850 | continue; |
1851 | ||
1852 | return -errno; | |
e96d6be7 LP |
1853 | } else if (n == 0) |
1854 | continue; | |
9152c765 | 1855 | |
957ca890 | 1856 | assert(n == 1); |
b9cd2ec1 | 1857 | |
e96d6be7 LP |
1858 | r = process_event(m, &event); |
1859 | if (r < 0) | |
957ca890 | 1860 | return r; |
a16e1123 | 1861 | } |
957ca890 | 1862 | |
a16e1123 | 1863 | return m->exit_code; |
83c60c9f | 1864 | } |
ea430986 | 1865 | |
80fbf05e | 1866 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ede3a796 | 1867 | _cleanup_free_ char *n = NULL; |
ea430986 | 1868 | Unit *u; |
80fbf05e | 1869 | int r; |
ea430986 LP |
1870 | |
1871 | assert(m); | |
1872 | assert(s); | |
1873 | assert(_u); | |
1874 | ||
ede3a796 LP |
1875 | r = unit_name_from_dbus_path(s, &n); |
1876 | if (r < 0) | |
1877 | return r; | |
ea430986 | 1878 | |
80fbf05e | 1879 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1880 | if (r < 0) |
1881 | return r; | |
ea430986 LP |
1882 | |
1883 | *_u = u; | |
1884 | ||
1885 | return 0; | |
1886 | } | |
86fbf370 LP |
1887 | |
1888 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1889 | Job *j; | |
1890 | unsigned id; | |
1891 | int r; | |
1892 | ||
1893 | assert(m); | |
1894 | assert(s); | |
1895 | assert(_j); | |
1896 | ||
1897 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1898 | return -EINVAL; | |
1899 | ||
8742514c LP |
1900 | r = safe_atou(s + 30, &id); |
1901 | if (r < 0) | |
86fbf370 LP |
1902 | return r; |
1903 | ||
8742514c LP |
1904 | j = manager_get_job(m, id); |
1905 | if (!j) | |
86fbf370 LP |
1906 | return -ENOENT; |
1907 | ||
1908 | *_j = j; | |
1909 | ||
1910 | return 0; | |
1911 | } | |
dfcd764e | 1912 | |
4927fcae | 1913 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1914 | |
4927fcae LP |
1915 | #ifdef HAVE_AUDIT |
1916 | char *p; | |
c1165f82 | 1917 | int audit_fd; |
e537352b | 1918 | |
c1165f82 LP |
1919 | audit_fd = get_audit_fd(); |
1920 | if (audit_fd < 0) | |
e537352b LP |
1921 | return; |
1922 | ||
bbd3a7ba LP |
1923 | /* Don't generate audit events if the service was already |
1924 | * started and we're just deserializing */ | |
a7556052 | 1925 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1926 | return; |
1927 | ||
67445f4e | 1928 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1929 | return; |
1930 | ||
ac155bb8 | 1931 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1932 | return; |
1933 | ||
bd0af849 ZJS |
1934 | p = unit_name_to_prefix_and_instance(u->id); |
1935 | if (!p) { | |
66870f90 ZJS |
1936 | log_error_unit(u->id, |
1937 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1938 | return; |
1939 | } | |
1940 | ||
c1165f82 | 1941 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1942 | if (errno == EPERM) { |
1943 | /* We aren't allowed to send audit messages? | |
44785992 | 1944 | * Then let's not retry again. */ |
c1165f82 | 1945 | close_audit_fd(); |
44785992 LP |
1946 | } else |
1947 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1948 | } |
e537352b | 1949 | |
4927fcae LP |
1950 | free(p); |
1951 | #endif | |
e537352b | 1952 | |
e537352b LP |
1953 | } |
1954 | ||
e983b760 LP |
1955 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1956 | int fd = -1; | |
1957 | union sockaddr_union sa; | |
1958 | int n = 0; | |
1959 | char *message = NULL; | |
e983b760 LP |
1960 | |
1961 | /* Don't generate plymouth events if the service was already | |
1962 | * started and we're just deserializing */ | |
a7556052 | 1963 | if (m->n_reloading > 0) |
e983b760 LP |
1964 | return; |
1965 | ||
67445f4e | 1966 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1967 | return; |
1968 | ||
ac155bb8 MS |
1969 | if (u->type != UNIT_SERVICE && |
1970 | u->type != UNIT_MOUNT && | |
1971 | u->type != UNIT_SWAP) | |
e983b760 LP |
1972 | return; |
1973 | ||
1974 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1975 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1976 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1977 | if (fd < 0) { | |
e983b760 LP |
1978 | log_error("socket() failed: %m"); |
1979 | return; | |
1980 | } | |
1981 | ||
1982 | zero(sa); | |
1983 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1984 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1985 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1986 | |
1987 | if (errno != EPIPE && | |
1988 | errno != EAGAIN && | |
1989 | errno != ENOENT && | |
1990 | errno != ECONNREFUSED && | |
1991 | errno != ECONNRESET && | |
1992 | errno != ECONNABORTED) | |
1993 | log_error("connect() failed: %m"); | |
1994 | ||
1995 | goto finish; | |
1996 | } | |
1997 | ||
ac155bb8 | 1998 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1999 | log_oom(); |
e983b760 LP |
2000 | goto finish; |
2001 | } | |
2002 | ||
2003 | errno = 0; | |
bd40a2d8 | 2004 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
2005 | |
2006 | if (errno != EPIPE && | |
2007 | errno != EAGAIN && | |
2008 | errno != ENOENT && | |
2009 | errno != ECONNREFUSED && | |
2010 | errno != ECONNRESET && | |
2011 | errno != ECONNABORTED) | |
2012 | log_error("Failed to write Plymouth message: %m"); | |
2013 | ||
2014 | goto finish; | |
2015 | } | |
2016 | ||
2017 | finish: | |
2018 | if (fd >= 0) | |
2019 | close_nointr_nofail(fd); | |
2020 | ||
2021 | free(message); | |
2022 | } | |
2023 | ||
05e343b7 LP |
2024 | void manager_dispatch_bus_name_owner_changed( |
2025 | Manager *m, | |
2026 | const char *name, | |
2027 | const char* old_owner, | |
2028 | const char *new_owner) { | |
2029 | ||
2030 | Unit *u; | |
2031 | ||
2032 | assert(m); | |
2033 | assert(name); | |
2034 | ||
2035 | if (!(u = hashmap_get(m->watch_bus, name))) | |
2036 | return; | |
2037 | ||
2038 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2039 | } | |
2040 | ||
2041 | void manager_dispatch_bus_query_pid_done( | |
2042 | Manager *m, | |
2043 | const char *name, | |
2044 | pid_t pid) { | |
2045 | ||
2046 | Unit *u; | |
2047 | ||
2048 | assert(m); | |
2049 | assert(name); | |
2050 | assert(pid >= 1); | |
2051 | ||
2052 | if (!(u = hashmap_get(m->watch_bus, name))) | |
2053 | return; | |
2054 | ||
2055 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
2056 | } | |
2057 | ||
d8d5ab98 | 2058 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 2059 | char *path = NULL; |
a16e1123 LP |
2060 | int fd; |
2061 | FILE *f; | |
2062 | ||
2063 | assert(_f); | |
2064 | ||
67445f4e | 2065 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 2066 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
2067 | else |
2068 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 2069 | |
b925e726 LP |
2070 | if (!path) |
2071 | return -ENOMEM; | |
a16e1123 | 2072 | |
5c0d398d LP |
2073 | RUN_WITH_UMASK(0077) { |
2074 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
2075 | } | |
a16e1123 LP |
2076 | |
2077 | if (fd < 0) { | |
2078 | free(path); | |
2079 | return -errno; | |
2080 | } | |
2081 | ||
2082 | unlink(path); | |
2083 | ||
2084 | log_debug("Serializing state to %s", path); | |
2085 | free(path); | |
2086 | ||
01e10de3 LP |
2087 | f = fdopen(fd, "w+"); |
2088 | if (!f) | |
a16e1123 LP |
2089 | return -errno; |
2090 | ||
2091 | *_f = f; | |
2092 | ||
2093 | return 0; | |
2094 | } | |
2095 | ||
b3680f49 | 2096 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2097 | Iterator i; |
2098 | Unit *u; | |
2099 | const char *t; | |
4a9fd066 | 2100 | char **e; |
a16e1123 LP |
2101 | int r; |
2102 | ||
2103 | assert(m); | |
2104 | assert(f); | |
2105 | assert(fds); | |
2106 | ||
a7556052 | 2107 | m->n_reloading ++; |
38c52d46 | 2108 | |
01d67b43 LP |
2109 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2110 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2111 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2112 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2113 | |
915b3753 LP |
2114 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
2115 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); | |
2116 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); | |
e9ddabc2 | 2117 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2118 | |
26a1efdf | 2119 | if (!in_initrd()) { |
915b3753 | 2120 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 HH |
2121 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
2122 | } | |
47a483a1 | 2123 | |
b3680f49 HH |
2124 | if (!switching_root) { |
2125 | STRV_FOREACH(e, m->environment) { | |
2126 | _cleanup_free_ char *ce; | |
4a9fd066 | 2127 | |
b3680f49 HH |
2128 | ce = cescape(*e); |
2129 | if (ce) | |
2130 | fprintf(f, "env=%s\n", *e); | |
2131 | } | |
4a9fd066 OS |
2132 | } |
2133 | ||
6fa48533 LP |
2134 | bus_serialize(m, f); |
2135 | ||
f2382a94 LP |
2136 | fputc('\n', f); |
2137 | ||
a16e1123 | 2138 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2139 | if (u->id != t) |
a16e1123 LP |
2140 | continue; |
2141 | ||
2142 | if (!unit_can_serialize(u)) | |
2143 | continue; | |
2144 | ||
2145 | /* Start marker */ | |
ac155bb8 | 2146 | fputs(u->id, f); |
a16e1123 LP |
2147 | fputc('\n', f); |
2148 | ||
6fa48533 LP |
2149 | r = unit_serialize(u, f, fds, !switching_root); |
2150 | if (r < 0) { | |
a7556052 | 2151 | m->n_reloading --; |
a16e1123 | 2152 | return r; |
38c52d46 | 2153 | } |
a16e1123 LP |
2154 | } |
2155 | ||
a7556052 LP |
2156 | assert(m->n_reloading > 0); |
2157 | m->n_reloading --; | |
38c52d46 | 2158 | |
a16e1123 LP |
2159 | if (ferror(f)) |
2160 | return -EIO; | |
2161 | ||
b23de6af LP |
2162 | r = bus_fdset_add_all(m, fds); |
2163 | if (r < 0) | |
2164 | return r; | |
2165 | ||
a16e1123 LP |
2166 | return 0; |
2167 | } | |
2168 | ||
2169 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2170 | int r = 0; | |
2171 | ||
2172 | assert(m); | |
2173 | assert(f); | |
2174 | ||
2175 | log_debug("Deserializing state..."); | |
2176 | ||
a7556052 | 2177 | m->n_reloading ++; |
82c64bf5 | 2178 | |
10f8e83c | 2179 | for (;;) { |
20c03b7b | 2180 | char line[LINE_MAX], *l; |
10f8e83c LP |
2181 | |
2182 | if (!fgets(line, sizeof(line), f)) { | |
2183 | if (feof(f)) | |
2184 | r = 0; | |
2185 | else | |
2186 | r = -errno; | |
2187 | ||
2188 | goto finish; | |
2189 | } | |
2190 | ||
2191 | char_array_0(line); | |
2192 | l = strstrip(line); | |
2193 | ||
2194 | if (l[0] == 0) | |
2195 | break; | |
2196 | ||
01d67b43 LP |
2197 | if (startswith(l, "current-job-id=")) { |
2198 | uint32_t id; | |
2199 | ||
2200 | if (safe_atou32(l+15, &id) < 0) | |
2201 | log_debug("Failed to parse current job id value %s", l+15); | |
2202 | else | |
2203 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
2204 | } else if (startswith(l, "n-installed-jobs=")) { |
2205 | uint32_t n; | |
2206 | ||
2207 | if (safe_atou32(l+17, &n) < 0) | |
2208 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2209 | else | |
2210 | m->n_installed_jobs += n; | |
2211 | } else if (startswith(l, "n-failed-jobs=")) { | |
2212 | uint32_t n; | |
2213 | ||
2214 | if (safe_atou32(l+14, &n) < 0) | |
2215 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2216 | else | |
2217 | m->n_failed_jobs += n; | |
01d67b43 LP |
2218 | } else if (startswith(l, "taint-usr=")) { |
2219 | int b; | |
2220 | ||
2221 | if ((b = parse_boolean(l+10)) < 0) | |
2222 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2223 | else | |
2224 | m->taint_usr = m->taint_usr || b; | |
915b3753 LP |
2225 | } else if (startswith(l, "firmware-timestamp=")) |
2226 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2227 | else if (startswith(l, "loader-timestamp=")) | |
2228 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2229 | else if (startswith(l, "kernel-timestamp=")) | |
2230 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2231 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2232 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2233 | else if (startswith(l, "userspace-timestamp=")) |
2234 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2235 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2236 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
4a9fd066 OS |
2237 | else if (startswith(l, "env=")) { |
2238 | _cleanup_free_ char *uce = NULL; | |
2239 | char **e; | |
2240 | ||
2241 | uce = cunescape(l+4); | |
2242 | if (!uce) { | |
2243 | r = -ENOMEM; | |
2244 | goto finish; | |
2245 | } | |
2246 | ||
2247 | e = strv_env_set(m->environment, uce); | |
2248 | if (!e) { | |
2249 | r = -ENOMEM; | |
2250 | goto finish; | |
2251 | } | |
2252 | ||
2253 | strv_free(m->environment); | |
2254 | m->environment = e; | |
6fa48533 | 2255 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2256 | log_debug("Unknown serialization item '%s'", l); |
2257 | } | |
2258 | ||
a16e1123 LP |
2259 | for (;;) { |
2260 | Unit *u; | |
2261 | char name[UNIT_NAME_MAX+2]; | |
2262 | ||
2263 | /* Start marker */ | |
2264 | if (!fgets(name, sizeof(name), f)) { | |
2265 | if (feof(f)) | |
10f8e83c LP |
2266 | r = 0; |
2267 | else | |
2268 | r = -errno; | |
a16e1123 | 2269 | |
82c64bf5 | 2270 | goto finish; |
a16e1123 LP |
2271 | } |
2272 | ||
2273 | char_array_0(name); | |
2274 | ||
bd0af849 ZJS |
2275 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2276 | if (r < 0) | |
82c64bf5 | 2277 | goto finish; |
a16e1123 | 2278 | |
01e10de3 LP |
2279 | r = unit_deserialize(u, f, fds); |
2280 | if (r < 0) | |
82c64bf5 | 2281 | goto finish; |
a16e1123 LP |
2282 | } |
2283 | ||
10f8e83c | 2284 | finish: |
82c64bf5 LP |
2285 | if (ferror(f)) { |
2286 | r = -EIO; | |
2287 | goto finish; | |
2288 | } | |
a16e1123 | 2289 | |
a7556052 LP |
2290 | assert(m->n_reloading > 0); |
2291 | m->n_reloading --; | |
82c64bf5 LP |
2292 | |
2293 | return r; | |
a16e1123 LP |
2294 | } |
2295 | ||
01e10de3 LP |
2296 | int manager_distribute_fds(Manager *m, FDSet *fds) { |
2297 | Unit *u; | |
2298 | Iterator i; | |
2299 | int r; | |
2300 | ||
2301 | assert(m); | |
2302 | ||
2303 | HASHMAP_FOREACH(u, m->units, i) { | |
2304 | ||
2305 | if (fdset_size(fds) <= 0) | |
2306 | break; | |
2307 | ||
2308 | if (UNIT_VTABLE(u)->distribute_fds) { | |
2309 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
2310 | if (r < 0) | |
2311 | return r; | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | return 0; | |
2316 | } | |
2317 | ||
a16e1123 LP |
2318 | int manager_reload(Manager *m) { |
2319 | int r, q; | |
2320 | FILE *f; | |
2321 | FDSet *fds; | |
2322 | ||
2323 | assert(m); | |
2324 | ||
07719a21 LP |
2325 | r = manager_open_serialization(m, &f); |
2326 | if (r < 0) | |
a16e1123 LP |
2327 | return r; |
2328 | ||
a7556052 | 2329 | m->n_reloading ++; |
71445ae7 | 2330 | bus_broadcast_reloading(m, true); |
38c52d46 | 2331 | |
07719a21 LP |
2332 | fds = fdset_new(); |
2333 | if (!fds) { | |
a7556052 | 2334 | m->n_reloading --; |
a16e1123 LP |
2335 | r = -ENOMEM; |
2336 | goto finish; | |
2337 | } | |
2338 | ||
b3680f49 | 2339 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2340 | if (r < 0) { |
a7556052 | 2341 | m->n_reloading --; |
a16e1123 | 2342 | goto finish; |
38c52d46 | 2343 | } |
a16e1123 LP |
2344 | |
2345 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2346 | m->n_reloading --; |
a16e1123 LP |
2347 | r = -errno; |
2348 | goto finish; | |
2349 | } | |
2350 | ||
2351 | /* From here on there is no way back. */ | |
2352 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2353 | manager_undo_generators(m); |
84e3543e | 2354 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2355 | |
07719a21 | 2356 | /* Find new unit paths */ |
5a1e9937 LP |
2357 | manager_run_generators(m); |
2358 | ||
07719a21 LP |
2359 | q = lookup_paths_init( |
2360 | &m->lookup_paths, m->running_as, true, | |
2361 | m->generator_unit_path, | |
2362 | m->generator_unit_path_early, | |
2363 | m->generator_unit_path_late); | |
2364 | if (q < 0) | |
2365 | r = q; | |
2366 | ||
5a1e9937 LP |
2367 | manager_build_unit_path_cache(m); |
2368 | ||
a16e1123 | 2369 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2370 | q = manager_enumerate(m); |
2371 | if (q < 0) | |
a16e1123 LP |
2372 | r = q; |
2373 | ||
2374 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2375 | q = manager_deserialize(m, f, fds); |
2376 | if (q < 0) | |
a16e1123 LP |
2377 | r = q; |
2378 | ||
2379 | fclose(f); | |
2380 | f = NULL; | |
2381 | ||
2382 | /* Third, fire things up! */ | |
07719a21 LP |
2383 | q = manager_coldplug(m); |
2384 | if (q < 0) | |
a16e1123 LP |
2385 | r = q; |
2386 | ||
a7556052 LP |
2387 | assert(m->n_reloading > 0); |
2388 | m->n_reloading--; | |
9f611ad8 | 2389 | |
71445ae7 LP |
2390 | m->send_reloading_done = true; |
2391 | ||
a16e1123 LP |
2392 | finish: |
2393 | if (f) | |
2394 | fclose(f); | |
2395 | ||
2396 | if (fds) | |
2397 | fdset_free(fds); | |
2398 | ||
2399 | return r; | |
2400 | } | |
2401 | ||
6084e22e | 2402 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2403 | Unit *u; |
2404 | ||
2405 | assert(m); | |
2406 | ||
2407 | /* Is the initial job still around? */ | |
bacbccb7 | 2408 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2409 | return true; |
2410 | ||
2411 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2412 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2413 | if (u) | |
ac155bb8 | 2414 | return !!u->job; |
9e58ff9c LP |
2415 | |
2416 | return false; | |
2417 | } | |
2418 | ||
c17ec25e MS |
2419 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2420 | assert(m); | |
2421 | ||
2422 | return m->n_reloading != 0; | |
2423 | } | |
2424 | ||
fdf20a31 | 2425 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2426 | Unit *u; |
2427 | Iterator i; | |
2428 | ||
2429 | assert(m); | |
2430 | ||
2431 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2432 | unit_reset_failed(u); |
5632e374 LP |
2433 | } |
2434 | ||
31afa0a4 | 2435 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2436 | Unit *u; |
2437 | ||
2438 | assert(m); | |
2439 | assert(name); | |
2440 | ||
2441 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2442 | u = manager_get_unit(m, name); |
2443 | if (!u) | |
8f6df3fa LP |
2444 | return true; |
2445 | ||
31afa0a4 | 2446 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2447 | } |
2448 | ||
b0c918b9 | 2449 | void manager_check_finished(Manager *m) { |
7ceba241 | 2450 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2451 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2452 | |
2453 | assert(m); | |
2454 | ||
a0b64226 MS |
2455 | if (m->n_running_jobs == 0) |
2456 | manager_unwatch_jobs_in_progress(m); | |
2457 | ||
5b176ee0 MS |
2458 | if (hashmap_size(m->jobs) > 0) { |
2459 | manager_jobs_in_progress_mod_timer(m); | |
b0c918b9 | 2460 | return; |
5b176ee0 | 2461 | } |
b0c918b9 | 2462 | |
f2b68789 | 2463 | /* Notify Type=idle units that we are done now */ |
31a7eb86 ZJS |
2464 | manager_unwatch_idle_pipe(m); |
2465 | close_idle_pipe(m); | |
f2b68789 | 2466 | |
af6da548 LP |
2467 | /* Turn off confirm spawn now */ |
2468 | m->confirm_spawn = false; | |
2469 | ||
f2b68789 | 2470 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2471 | return; |
2472 | ||
2473 | dual_timestamp_get(&m->finish_timestamp); | |
2474 | ||
67445f4e | 2475 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2476 | |
915b3753 LP |
2477 | /* Note that m->kernel_usec.monotonic is always at 0, |
2478 | * and m->firmware_usec.monotonic and | |
2479 | * m->loader_usec.monotonic should be considered | |
2480 | * negative values. */ | |
2481 | ||
7ceba241 LP |
2482 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2483 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2484 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2485 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2486 | |
e9ddabc2 | 2487 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2488 | |
915b3753 LP |
2489 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2490 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2491 | |
81270860 LP |
2492 | if (!log_on_console()) |
2493 | log_struct(LOG_INFO, | |
1ca6783f | 2494 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2495 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2496 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2497 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2498 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2499 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2500 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2501 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2502 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2503 | NULL); |
18fa6b27 | 2504 | } else { |
915b3753 | 2505 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2506 | initrd_usec = 0; |
2507 | ||
81270860 LP |
2508 | if (!log_on_console()) |
2509 | log_struct(LOG_INFO, | |
1ca6783f | 2510 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2511 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2512 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2513 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2514 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2515 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2516 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2517 | NULL); |
18fa6b27 LP |
2518 | } |
2519 | } else { | |
915b3753 LP |
2520 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2521 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2522 | |
81270860 LP |
2523 | if (!log_on_console()) |
2524 | log_struct(LOG_INFO, | |
1ca6783f | 2525 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2526 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2527 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2528 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2529 | NULL); |
18fa6b27 | 2530 | } |
b0c918b9 | 2531 | |
915b3753 | 2532 | bus_broadcast_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2533 | |
2534 | sd_notifyf(false, | |
2535 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2536 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2537 | } |
2538 | ||
07719a21 LP |
2539 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2540 | char *p; | |
2541 | int r; | |
2542 | ||
2543 | assert(m); | |
2544 | assert(generator); | |
2545 | assert(name); | |
2546 | ||
2547 | if (*generator) | |
2548 | return 0; | |
2549 | ||
67445f4e | 2550 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2551 | |
2552 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2553 | if (!p) |
2554 | return log_oom(); | |
07719a21 | 2555 | |
d2e54fae | 2556 | r = mkdir_p_label(p, 0755); |
07719a21 | 2557 | if (r < 0) { |
7ad94c71 ZJS |
2558 | log_error("Failed to create generator directory %s: %s", |
2559 | p, strerror(-r)); | |
07719a21 LP |
2560 | free(p); |
2561 | return r; | |
2562 | } | |
2563 | } else { | |
b7def684 | 2564 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2565 | if (!p) |
2566 | return log_oom(); | |
07719a21 LP |
2567 | |
2568 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2569 | log_error("Failed to create generator directory %s: %m", |
2570 | p); | |
34bf0281 | 2571 | free(p); |
07719a21 LP |
2572 | return -errno; |
2573 | } | |
2574 | } | |
2575 | ||
2576 | *generator = p; | |
2577 | return 0; | |
2578 | } | |
2579 | ||
2580 | static void trim_generator_dir(Manager *m, char **generator) { | |
2581 | assert(m); | |
2582 | assert(generator); | |
2583 | ||
2584 | if (!*generator) | |
2585 | return; | |
2586 | ||
2587 | if (rmdir(*generator) >= 0) { | |
2588 | free(*generator); | |
2589 | *generator = NULL; | |
2590 | } | |
2591 | ||
2592 | return; | |
2593 | } | |
2594 | ||
5a1e9937 LP |
2595 | void manager_run_generators(Manager *m) { |
2596 | DIR *d = NULL; | |
5a1e9937 | 2597 | const char *generator_path; |
07719a21 | 2598 | const char *argv[5]; |
07719a21 | 2599 | int r; |
5a1e9937 LP |
2600 | |
2601 | assert(m); | |
2602 | ||
67445f4e | 2603 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2604 | d = opendir(generator_path); |
2605 | if (!d) { | |
5a1e9937 LP |
2606 | if (errno == ENOENT) |
2607 | return; | |
2608 | ||
7ad94c71 ZJS |
2609 | log_error("Failed to enumerate generator directory %s: %m", |
2610 | generator_path); | |
5a1e9937 LP |
2611 | return; |
2612 | } | |
2613 | ||
07719a21 LP |
2614 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2615 | if (r < 0) | |
2616 | goto finish; | |
f1d19aa4 | 2617 | |
07719a21 LP |
2618 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2619 | if (r < 0) | |
2620 | goto finish; | |
5a1e9937 | 2621 | |
07719a21 LP |
2622 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2623 | if (r < 0) | |
2624 | goto finish; | |
5a1e9937 | 2625 | |
83cc030f LP |
2626 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2627 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2628 | argv[2] = m->generator_unit_path_early; |
2629 | argv[3] = m->generator_unit_path_late; | |
2630 | argv[4] = NULL; | |
5a1e9937 | 2631 | |
5c0d398d LP |
2632 | RUN_WITH_UMASK(0022) { |
2633 | execute_directory(generator_path, d, (char**) argv); | |
2634 | } | |
5a1e9937 | 2635 | |
07719a21 LP |
2636 | trim_generator_dir(m, &m->generator_unit_path); |
2637 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2638 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2639 | |
2640 | finish: | |
2641 | if (d) | |
2642 | closedir(d); | |
5a1e9937 LP |
2643 | } |
2644 | ||
07719a21 | 2645 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2646 | assert(m); |
07719a21 | 2647 | assert(generator); |
5a1e9937 | 2648 | |
07719a21 | 2649 | if (!*generator) |
5a1e9937 LP |
2650 | return; |
2651 | ||
07719a21 LP |
2652 | strv_remove(m->lookup_paths.unit_path, *generator); |
2653 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2654 | |
07719a21 LP |
2655 | free(*generator); |
2656 | *generator = NULL; | |
2657 | } | |
2658 | ||
2659 | void manager_undo_generators(Manager *m) { | |
2660 | assert(m); | |
2661 | ||
2662 | remove_generator_dir(m, &m->generator_unit_path); | |
2663 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2664 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2665 | } |
2666 | ||
e21fea24 | 2667 | int manager_environment_add(Manager *m, char **environment) { |
97d0e5f8 UTL |
2668 | char **e = NULL; |
2669 | assert(m); | |
bcd8e6d1 | 2670 | |
97d0e5f8 UTL |
2671 | e = strv_env_merge(2, m->environment, environment); |
2672 | if (!e) | |
2673 | return -ENOMEM; | |
bcd8e6d1 | 2674 | |
97d0e5f8 UTL |
2675 | strv_free(m->environment); |
2676 | m->environment = e; | |
bcd8e6d1 | 2677 | |
97d0e5f8 UTL |
2678 | return 0; |
2679 | } | |
2680 | ||
c93ff2e9 FC |
2681 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2682 | int i; | |
2683 | ||
2684 | assert(m); | |
2685 | ||
2686 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2687 | if (!default_rlimit[i]) |
2688 | continue; | |
c93ff2e9 | 2689 | |
07719a21 LP |
2690 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2691 | if (!m->rlimit[i]) | |
2692 | return -ENOMEM; | |
c93ff2e9 FC |
2693 | } |
2694 | ||
2695 | return 0; | |
2696 | } | |
2697 | ||
4cfa2c99 | 2698 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2699 | Unit *u; |
2700 | ||
2701 | assert(m); | |
2702 | ||
67445f4e | 2703 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2704 | return; |
2705 | ||
731a676c LP |
2706 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2707 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2708 | log_close_journal(); |
731a676c | 2709 | return; |
f1dd0c3f LP |
2710 | } |
2711 | ||
731a676c LP |
2712 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2713 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2714 | log_close_journal(); |
731a676c LP |
2715 | return; |
2716 | } | |
f1dd0c3f | 2717 | |
731a676c LP |
2718 | /* Hmm, OK, so the socket is fully up and the service is up |
2719 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2720 | log_open(); |
2721 | } | |
2722 | ||
27d340c7 LP |
2723 | void manager_set_show_status(Manager *m, bool b) { |
2724 | assert(m); | |
2725 | ||
67445f4e | 2726 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2727 | return; |
2728 | ||
2729 | m->show_status = b; | |
2730 | ||
2731 | if (b) | |
2732 | touch("/run/systemd/show-status"); | |
2733 | else | |
2734 | unlink("/run/systemd/show-status"); | |
2735 | } | |
2736 | ||
6084e22e | 2737 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2738 | assert(m); |
2739 | ||
67445f4e | 2740 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2741 | return false; |
2742 | ||
31a7eb86 ZJS |
2743 | if (m->no_console_output) |
2744 | return false; | |
2745 | ||
27d340c7 LP |
2746 | if (m->show_status) |
2747 | return true; | |
2748 | ||
2749 | /* If Plymouth is running make sure we show the status, so | |
2750 | * that there's something nice to see when people press Esc */ | |
2751 | ||
2752 | return plymouth_running(); | |
2753 | } | |
68b29a9f | 2754 | |
984a2be4 | 2755 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2756 | va_list ap; |
2757 | ||
2758 | if (!manager_get_show_status(m)) | |
2759 | return; | |
2760 | ||
03b717a3 MS |
2761 | /* XXX We should totally drop the check for ephemeral here |
2762 | * and thus effectively make 'Type=idle' pointless. */ | |
2763 | if (ephemeral && m->n_on_console > 0) | |
2764 | return; | |
2765 | ||
25cee550 MS |
2766 | if (!manager_is_booting_or_shutting_down(m)) |
2767 | return; | |
2768 | ||
2769 | va_start(ap, format); | |
984a2be4 | 2770 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2771 | va_end(ap); |
2772 | } | |
2773 | ||
a57f7e2c LP |
2774 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2775 | _cleanup_free_ char *p = NULL; | |
2776 | Unit *found; | |
2777 | ||
2778 | assert(m); | |
2779 | assert(path); | |
2780 | assert(suffix); | |
2781 | assert(_found); | |
2782 | ||
2783 | p = unit_name_from_path(path, suffix); | |
2784 | if (!p) | |
2785 | return -ENOMEM; | |
2786 | ||
2787 | found = manager_get_unit(m, p); | |
2788 | if (!found) { | |
2789 | *_found = NULL; | |
2790 | return 0; | |
2791 | } | |
2792 | ||
2793 | *_found = found; | |
2794 | return 1; | |
2795 | } | |
2796 | ||
2797 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2798 | char p[strlen(path)+1]; | |
2799 | ||
2800 | assert(m); | |
2801 | assert(path); | |
2802 | ||
2803 | strcpy(p, path); | |
2804 | path_kill_slashes(p); | |
2805 | ||
2806 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2807 | } | |
2808 | ||
68b29a9f LP |
2809 | void watch_init(Watch *w) { |
2810 | assert(w); | |
2811 | ||
2812 | w->type = WATCH_INVALID; | |
2813 | w->fd = -1; | |
2814 | } |