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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); | |
51d122af | 239 | strcpy(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); | |
51d122af | 260 | assert(j); |
5a82a91a | 261 | |
03b717a3 MS |
262 | cylon_pos = m->jobs_in_progress_iteration % 14; |
263 | if (cylon_pos >= 8) | |
264 | cylon_pos = 14 - cylon_pos; | |
265 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
266 | ||
267 | if (m->n_running_jobs > 1) | |
268 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
269 | job_of_n = NULL; | |
270 | ||
271 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
272 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
273 | free(job_of_n); | |
274 | ||
275 | m->jobs_in_progress_iteration++; | |
276 | } | |
277 | ||
31a7eb86 ZJS |
278 | static int manager_watch_idle_pipe(Manager *m) { |
279 | struct epoll_event ev = { | |
280 | .events = EPOLLIN, | |
281 | .data.ptr = &m->idle_pipe_watch, | |
282 | }; | |
283 | int r; | |
284 | ||
285 | if (m->idle_pipe_watch.type != WATCH_INVALID) | |
286 | return 0; | |
287 | ||
288 | if (m->idle_pipe[2] < 0) | |
289 | return 0; | |
290 | ||
291 | m->idle_pipe_watch.type = WATCH_IDLE_PIPE; | |
292 | m->idle_pipe_watch.fd = m->idle_pipe[2]; | |
293 | if (m->idle_pipe_watch.fd < 0) { | |
294 | log_error("Failed to create timerfd: %m"); | |
295 | r = -errno; | |
296 | goto err; | |
297 | } | |
298 | ||
299 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->idle_pipe_watch.fd, &ev) < 0) { | |
300 | log_error("Failed to add idle_pipe fd to epoll: %m"); | |
301 | r = -errno; | |
302 | goto err; | |
303 | } | |
304 | ||
305 | log_debug("Set up idle_pipe watch."); | |
31a7eb86 ZJS |
306 | |
307 | return 0; | |
308 | ||
309 | err: | |
310 | if (m->idle_pipe_watch.fd >= 0) | |
311 | close_nointr_nofail(m->idle_pipe_watch.fd); | |
312 | watch_init(&m->idle_pipe_watch); | |
313 | return r; | |
314 | } | |
315 | ||
316 | static void manager_unwatch_idle_pipe(Manager *m) { | |
317 | if (m->idle_pipe_watch.type != WATCH_IDLE_PIPE) | |
318 | return; | |
319 | ||
31a7eb86 ZJS |
320 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->idle_pipe_watch.fd, NULL) >= 0); |
321 | watch_init(&m->idle_pipe_watch); | |
322 | ||
323 | log_debug("Closed idle_pipe watch."); | |
324 | } | |
325 | ||
8742514c | 326 | static int manager_setup_time_change(Manager *m) { |
b92bea5d ZJS |
327 | struct epoll_event ev = { |
328 | .events = EPOLLIN, | |
329 | .data.ptr = &m->time_change_watch, | |
330 | }; | |
331 | ||
332 | /* We only care for the cancellation event, hence we set the | |
333 | * timeout to the latest possible value. */ | |
334 | struct itimerspec its = { | |
335 | .it_value.tv_sec = TIME_T_MAX, | |
336 | }; | |
337 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 338 | |
8742514c LP |
339 | assert(m->time_change_watch.type == WATCH_INVALID); |
340 | ||
341 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
342 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
343 | ||
344 | m->time_change_watch.type = WATCH_TIME_CHANGE; | |
345 | m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
346 | if (m->time_change_watch.fd < 0) { | |
347 | log_error("Failed to create timerfd: %m"); | |
348 | return -errno; | |
349 | } | |
350 | ||
8742514c LP |
351 | if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
352 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); | |
353 | close_nointr_nofail(m->time_change_watch.fd); | |
354 | watch_init(&m->time_change_watch); | |
355 | return 0; | |
356 | } | |
357 | ||
8742514c LP |
358 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) { |
359 | log_error("Failed to add timer change fd to epoll: %m"); | |
360 | return -errno; | |
361 | } | |
362 | ||
363 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
80876c20 | 368 | static int enable_special_signals(Manager *m) { |
4466ee6a | 369 | int fd; |
80876c20 LP |
370 | |
371 | assert(m); | |
372 | ||
a41b539e | 373 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
374 | * this will fail with EPERM (older) or EINVAL (newer), so |
375 | * ignore that. */ | |
376 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
377 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
378 | ||
a41b539e LP |
379 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
380 | if (fd < 0) { | |
381 | /* Support systems without virtual console */ | |
382 | if (fd != -ENOENT) | |
383 | log_warning("Failed to open /dev/tty0: %m"); | |
384 | } else { | |
80876c20 LP |
385 | /* Enable that we get SIGWINCH on kbrequest */ |
386 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
387 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
388 | ||
389 | close_nointr_nofail(fd); | |
390 | } | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
ce578209 | 395 | static int manager_setup_signals(Manager *m) { |
9152c765 | 396 | sigset_t mask; |
b92bea5d ZJS |
397 | struct epoll_event ev = { |
398 | .events = EPOLLIN, | |
399 | .data.ptr = &m->signal_watch, | |
400 | }; | |
401 | struct sigaction sa = { | |
402 | .sa_handler = SIG_DFL, | |
403 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
404 | }; | |
60918275 | 405 | |
ce578209 LP |
406 | assert(m); |
407 | ||
57c0c30e | 408 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
409 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
410 | ||
ce578209 | 411 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
412 | |
413 | sigset_add_many(&mask, | |
414 | SIGCHLD, /* Child died */ | |
415 | SIGTERM, /* Reexecute daemon */ | |
416 | SIGHUP, /* Reload configuration */ | |
417 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
418 | SIGUSR2, /* systemd: dump status */ | |
419 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
420 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
421 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
422 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 423 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
424 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
425 | SIGRTMIN+3, /* systemd: start halt.target */ | |
426 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
427 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
428 | SIGRTMIN+6, /* systemd: start kexec.target */ |
429 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
430 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
431 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
432 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
433 | SIGRTMIN+20, /* systemd: enable status messages */ |
434 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
435 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
436 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 437 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 438 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
439 | SIGRTMIN+27, /* systemd: set log target to console */ |
440 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
441 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 442 | -1); |
ce578209 LP |
443 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
444 | ||
ef734fd6 | 445 | m->signal_watch.type = WATCH_SIGNAL; |
8742514c LP |
446 | m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
447 | if (m->signal_watch.fd < 0) | |
ce578209 LP |
448 | return -errno; |
449 | ||
ce578209 LP |
450 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) |
451 | return -errno; | |
452 | ||
67445f4e | 453 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 454 | return enable_special_signals(m); |
e1414003 | 455 | |
ce578209 LP |
456 | return 0; |
457 | } | |
458 | ||
e21fea24 | 459 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
460 | assert(m); |
461 | ||
e21fea24 KS |
462 | if (m->running_as == SYSTEMD_SYSTEM) { |
463 | /* The system manager always starts with a clean | |
464 | * environment for its children. It does not import | |
465 | * the kernel or the parents exported variables. | |
466 | * | |
467 | * The initial passed environ is untouched to keep | |
468 | * /proc/self/environ valid; it is used for tagging | |
469 | * the init process inside containers. */ | |
43638332 ZJS |
470 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
471 | NULL); | |
e21fea24 KS |
472 | |
473 | /* Import locale variables LC_*= from configuration */ | |
474 | locale_setup(&m->environment); | |
475 | } else | |
476 | /* The user manager passes its own environment | |
477 | * along to its children. */ | |
478 | m->environment = strv_copy(environ); | |
71ecc858 | 479 | |
e21fea24 KS |
480 | if (!m->environment) |
481 | return -ENOMEM; | |
8b55b8c4 | 482 | |
e21fea24 | 483 | return 0; |
71ecc858 LP |
484 | } |
485 | ||
6fa48533 | 486 | int manager_new(SystemdRunningAs running_as, bool reexecuting, Manager **_m) { |
ce578209 | 487 | Manager *m; |
8e274523 | 488 | int r = -ENOMEM; |
a0a6408e | 489 | bool try_bus_connect = false; |
8e274523 LP |
490 | |
491 | assert(_m); | |
a5dab5ce | 492 | assert(running_as >= 0); |
67445f4e | 493 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 494 | |
915b3753 LP |
495 | m = new0(Manager, 1); |
496 | if (!m) | |
8e274523 | 497 | return -ENOMEM; |
60918275 | 498 | |
4f8d551f ZC |
499 | #ifdef ENABLE_EFI |
500 | if (detect_container(NULL) <= 0) | |
c51d84dc | 501 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
502 | #endif |
503 | ||
a5dab5ce | 504 | m->running_as = running_as; |
cbd37330 | 505 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 506 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 507 | m->pin_cgroupfs_fd = -1; |
31a7eb86 | 508 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
80876c20 | 509 | |
8742514c LP |
510 | watch_init(&m->signal_watch); |
511 | watch_init(&m->mount_watch); | |
512 | watch_init(&m->swap_watch); | |
513 | watch_init(&m->udev_watch); | |
514 | watch_init(&m->time_change_watch); | |
03b717a3 | 515 | watch_init(&m->jobs_in_progress_watch); |
8742514c LP |
516 | |
517 | m->epoll_fd = m->dev_autofs_fd = -1; | |
ea430986 | 518 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 519 | |
e21fea24 KS |
520 | r = manager_default_environment(m); |
521 | if (r < 0) | |
1137a57c LP |
522 | goto fail; |
523 | ||
87f0e418 | 524 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
525 | goto fail; |
526 | ||
527 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
528 | goto fail; | |
529 | ||
9152c765 LP |
530 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
531 | goto fail; | |
532 | ||
4ad49000 LP |
533 | m->cgroup_unit = hashmap_new(string_hash_func, string_compare_func); |
534 | if (!m->cgroup_unit) | |
8e274523 LP |
535 | goto fail; |
536 | ||
6fa48533 LP |
537 | m->watch_bus = hashmap_new(string_hash_func, string_compare_func); |
538 | if (!m->watch_bus) | |
05e343b7 LP |
539 | goto fail; |
540 | ||
8742514c LP |
541 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
542 | if (m->epoll_fd < 0) | |
543 | goto fail; | |
544 | ||
545 | r = manager_setup_signals(m); | |
546 | if (r < 0) | |
9152c765 LP |
547 | goto fail; |
548 | ||
8742514c LP |
549 | r = manager_setup_cgroup(m); |
550 | if (r < 0) | |
8e274523 LP |
551 | goto fail; |
552 | ||
8742514c LP |
553 | r = manager_setup_notify(m); |
554 | if (r < 0) | |
9152c765 LP |
555 | goto fail; |
556 | ||
8742514c LP |
557 | r = manager_setup_time_change(m); |
558 | if (r < 0) | |
8c47c732 LP |
559 | goto fail; |
560 | ||
a0a6408e MM |
561 | if (running_as == SYSTEMD_SYSTEM) |
562 | try_bus_connect = reexecuting; | |
563 | else if (getenv("DBUS_SESSION_BUS_ADDRESS")) | |
564 | try_bus_connect = true; | |
565 | else | |
ed002560 | 566 | log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set..."); |
ea430986 | 567 | |
a0a6408e MM |
568 | /* Try to connect to the busses, if possible. */ |
569 | r = bus_init(m, try_bus_connect); | |
570 | if (r < 0) | |
571 | goto fail; | |
572 | ||
72bc8d00 LP |
573 | m->taint_usr = dir_is_empty("/usr") > 0; |
574 | ||
8e274523 LP |
575 | *_m = m; |
576 | return 0; | |
60918275 LP |
577 | |
578 | fail: | |
579 | manager_free(m); | |
8e274523 | 580 | return r; |
60918275 LP |
581 | } |
582 | ||
23a177ef | 583 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 584 | Unit *u; |
23a177ef LP |
585 | unsigned n = 0; |
586 | ||
587 | assert(m); | |
588 | ||
595ed347 MS |
589 | while ((u = m->cleanup_queue)) { |
590 | assert(u->in_cleanup_queue); | |
23a177ef | 591 | |
595ed347 | 592 | unit_free(u); |
23a177ef LP |
593 | n++; |
594 | } | |
595 | ||
596 | return n; | |
597 | } | |
598 | ||
eced69b3 | 599 | enum { |
35b8ca3a | 600 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
601 | GC_OFFSET_UNSURE, /* No clue */ |
602 | GC_OFFSET_GOOD, /* We still need this unit */ | |
603 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
604 | _GC_OFFSET_MAX | |
605 | }; | |
606 | ||
607 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
608 | Iterator i; |
609 | Unit *other; | |
eced69b3 | 610 | bool is_bad; |
701cc384 LP |
611 | |
612 | assert(u); | |
613 | ||
ac155bb8 MS |
614 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
615 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
616 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
617 | return; |
618 | ||
ac155bb8 | 619 | if (u->in_cleanup_queue) |
701cc384 LP |
620 | goto bad; |
621 | ||
622 | if (unit_check_gc(u)) | |
623 | goto good; | |
624 | ||
ac155bb8 | 625 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
626 | |
627 | is_bad = true; | |
628 | ||
ac155bb8 | 629 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
630 | unit_gc_sweep(other, gc_marker); |
631 | ||
ac155bb8 | 632 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 633 | goto good; |
eced69b3 | 634 | |
ac155bb8 | 635 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 636 | is_bad = false; |
701cc384 LP |
637 | } |
638 | ||
eced69b3 LP |
639 | if (is_bad) |
640 | goto bad; | |
641 | ||
642 | /* We were unable to find anything out about this entry, so | |
643 | * let's investigate it later */ | |
ac155bb8 | 644 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
645 | unit_add_to_gc_queue(u); |
646 | return; | |
647 | ||
701cc384 | 648 | bad: |
eced69b3 LP |
649 | /* We definitely know that this one is not useful anymore, so |
650 | * let's mark it for deletion */ | |
ac155bb8 | 651 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 652 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
653 | return; |
654 | ||
655 | good: | |
ac155bb8 | 656 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
657 | } |
658 | ||
659 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 660 | Unit *u; |
701cc384 | 661 | unsigned n = 0; |
eced69b3 | 662 | unsigned gc_marker; |
701cc384 LP |
663 | |
664 | assert(m); | |
665 | ||
cf1265e1 | 666 | /* log_debug("Running GC..."); */ |
701cc384 | 667 | |
eced69b3 LP |
668 | m->gc_marker += _GC_OFFSET_MAX; |
669 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 670 | m->gc_marker = 1; |
701cc384 | 671 | |
eced69b3 LP |
672 | gc_marker = m->gc_marker; |
673 | ||
595ed347 MS |
674 | while ((u = m->gc_queue)) { |
675 | assert(u->in_gc_queue); | |
701cc384 | 676 | |
595ed347 | 677 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 678 | |
595ed347 MS |
679 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
680 | u->in_gc_queue = false; | |
701cc384 LP |
681 | |
682 | n++; | |
683 | ||
595ed347 MS |
684 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
685 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 686 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
687 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
688 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
689 | } |
690 | } | |
691 | ||
692 | m->n_in_gc_queue = 0; | |
701cc384 LP |
693 | |
694 | return n; | |
695 | } | |
696 | ||
a16e1123 | 697 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 698 | Unit *u; |
60918275 LP |
699 | |
700 | assert(m); | |
701 | ||
87f0e418 LP |
702 | while ((u = hashmap_first(m->units))) |
703 | unit_free(u); | |
964e0949 LP |
704 | |
705 | manager_dispatch_cleanup_queue(m); | |
706 | ||
707 | assert(!m->load_queue); | |
708 | assert(!m->run_queue); | |
709 | assert(!m->dbus_unit_queue); | |
710 | assert(!m->dbus_job_queue); | |
711 | assert(!m->cleanup_queue); | |
712 | assert(!m->gc_queue); | |
713 | ||
964e0949 LP |
714 | assert(hashmap_isempty(m->jobs)); |
715 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
716 | |
717 | m->n_on_console = 0; | |
718 | m->n_running_jobs = 0; | |
a16e1123 LP |
719 | } |
720 | ||
31a7eb86 ZJS |
721 | static void close_idle_pipe(Manager *m) { |
722 | close_pipe(m->idle_pipe); | |
723 | close_pipe(m->idle_pipe + 2); | |
724 | } | |
725 | ||
a16e1123 LP |
726 | void manager_free(Manager *m) { |
727 | UnitType c; | |
c93ff2e9 | 728 | int i; |
87f0e418 | 729 | |
a16e1123 LP |
730 | assert(m); |
731 | ||
732 | manager_clear_jobs_and_units(m); | |
23a177ef | 733 | |
7824bbeb LP |
734 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
735 | if (unit_vtable[c]->shutdown) | |
736 | unit_vtable[c]->shutdown(m); | |
737 | ||
a16e1123 LP |
738 | /* If we reexecute ourselves, we keep the root cgroup |
739 | * around */ | |
c6c18be3 | 740 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 741 | |
5a1e9937 LP |
742 | manager_undo_generators(m); |
743 | ||
5e8d1c9a | 744 | bus_done(m); |
ea430986 | 745 | |
87f0e418 | 746 | hashmap_free(m->units); |
60918275 | 747 | hashmap_free(m->jobs); |
9152c765 | 748 | hashmap_free(m->watch_pids); |
05e343b7 | 749 | hashmap_free(m->watch_bus); |
9152c765 LP |
750 | |
751 | if (m->epoll_fd >= 0) | |
a16e1123 | 752 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 753 | if (m->signal_watch.fd >= 0) |
a16e1123 | 754 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
755 | if (m->notify_watch.fd >= 0) |
756 | close_nointr_nofail(m->notify_watch.fd); | |
8742514c LP |
757 | if (m->time_change_watch.fd >= 0) |
758 | close_nointr_nofail(m->time_change_watch.fd); | |
03b717a3 MS |
759 | if (m->jobs_in_progress_watch.fd >= 0) |
760 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
60918275 | 761 | |
c952c6ec LP |
762 | free(m->notify_socket); |
763 | ||
84e3543e | 764 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 765 | strv_free(m->environment); |
036643a2 | 766 | |
4ad49000 | 767 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 768 | set_free_free(m->unit_path_cache); |
33be102a | 769 | |
31a7eb86 | 770 | close_idle_pipe(m); |
f2b68789 | 771 | |
664f88a7 LP |
772 | free(m->switch_root); |
773 | free(m->switch_root_init); | |
774 | ||
c93ff2e9 FC |
775 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
776 | free(m->rlimit[i]); | |
777 | ||
a57f7e2c LP |
778 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
779 | hashmap_free(m->units_requiring_mounts_for); | |
780 | ||
60918275 LP |
781 | free(m); |
782 | } | |
783 | ||
a16e1123 LP |
784 | int manager_enumerate(Manager *m) { |
785 | int r = 0, q; | |
f50e0a01 | 786 | UnitType c; |
f50e0a01 LP |
787 | |
788 | assert(m); | |
789 | ||
a16e1123 LP |
790 | /* Let's ask every type to load all units from disk/kernel |
791 | * that it might know */ | |
f50e0a01 | 792 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
793 | if (unit_vtable[c]->enumerate) { |
794 | q = unit_vtable[c]->enumerate(m); | |
795 | if (q < 0) | |
a16e1123 | 796 | r = q; |
a57f7e2c | 797 | } |
f50e0a01 LP |
798 | |
799 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
800 | return r; |
801 | } | |
802 | ||
803 | int manager_coldplug(Manager *m) { | |
804 | int r = 0, q; | |
805 | Iterator i; | |
806 | Unit *u; | |
807 | char *k; | |
808 | ||
809 | assert(m); | |
f50e0a01 LP |
810 | |
811 | /* Then, let's set up their initial state. */ | |
812 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
813 | ||
814 | /* ignore aliases */ | |
ac155bb8 | 815 | if (u->id != k) |
f50e0a01 LP |
816 | continue; |
817 | ||
cca098b0 LP |
818 | if ((q = unit_coldplug(u)) < 0) |
819 | r = q; | |
f50e0a01 LP |
820 | } |
821 | ||
a16e1123 LP |
822 | return r; |
823 | } | |
824 | ||
fe51822e LP |
825 | static void manager_build_unit_path_cache(Manager *m) { |
826 | char **i; | |
7fd1b19b | 827 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
828 | int r; |
829 | ||
830 | assert(m); | |
831 | ||
832 | set_free_free(m->unit_path_cache); | |
833 | ||
874310b7 ZJS |
834 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
835 | if (!m->unit_path_cache) { | |
fe51822e LP |
836 | log_error("Failed to allocate unit path cache."); |
837 | return; | |
838 | } | |
839 | ||
840 | /* This simply builds a list of files we know exist, so that | |
841 | * we don't always have to go to disk */ | |
842 | ||
843 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
844 | struct dirent *de; | |
845 | ||
bd0af849 ZJS |
846 | d = opendir(*i); |
847 | if (!d) { | |
874310b7 ZJS |
848 | if (errno != ENOENT) |
849 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
850 | continue; |
851 | } | |
852 | ||
853 | while ((de = readdir(d))) { | |
854 | char *p; | |
855 | ||
856 | if (ignore_file(de->d_name)) | |
857 | continue; | |
858 | ||
b7def684 | 859 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 860 | if (!p) { |
fe51822e LP |
861 | r = -ENOMEM; |
862 | goto fail; | |
863 | } | |
864 | ||
ef42202a ZJS |
865 | r = set_consume(m->unit_path_cache, p); |
866 | if (r < 0) | |
fe51822e | 867 | goto fail; |
fe51822e LP |
868 | } |
869 | ||
870 | closedir(d); | |
871 | d = NULL; | |
872 | } | |
873 | ||
874 | return; | |
875 | ||
876 | fail: | |
877 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
878 | ||
879 | set_free_free(m->unit_path_cache); | |
880 | m->unit_path_cache = NULL; | |
fe51822e LP |
881 | } |
882 | ||
a16e1123 LP |
883 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
884 | int r, q; | |
885 | ||
886 | assert(m); | |
887 | ||
518d10e9 | 888 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 889 | manager_run_generators(m); |
518d10e9 | 890 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 891 | |
07719a21 LP |
892 | r = lookup_paths_init( |
893 | &m->lookup_paths, m->running_as, true, | |
894 | m->generator_unit_path, | |
895 | m->generator_unit_path_early, | |
896 | m->generator_unit_path_late); | |
897 | if (r < 0) | |
898 | return r; | |
899 | ||
fe51822e LP |
900 | manager_build_unit_path_cache(m); |
901 | ||
9f611ad8 LP |
902 | /* If we will deserialize make sure that during enumeration |
903 | * this is already known, so we increase the counter here | |
904 | * already */ | |
905 | if (serialization) | |
a7556052 | 906 | m->n_reloading ++; |
9f611ad8 | 907 | |
a16e1123 | 908 | /* First, enumerate what we can from all config files */ |
d9acfb71 | 909 | dual_timestamp_get(&m->unitsload_start_timestamp); |
a16e1123 | 910 | r = manager_enumerate(m); |
d9acfb71 | 911 | dual_timestamp_get(&m->unitsload_finish_timestamp); |
a16e1123 LP |
912 | |
913 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
914 | if (serialization) { |
915 | q = manager_deserialize(m, serialization, fds); | |
916 | if (q < 0) | |
a16e1123 | 917 | r = q; |
07719a21 | 918 | } |
a16e1123 | 919 | |
01e10de3 LP |
920 | /* Any fds left? Find some unit which wants them. This is |
921 | * useful to allow container managers to pass some file | |
922 | * descriptors to us pre-initialized. This enables | |
923 | * socket-based activation of entire containers. */ | |
924 | if (fdset_size(fds) > 0) { | |
925 | q = manager_distribute_fds(m, fds); | |
926 | if (q < 0) | |
927 | r = q; | |
928 | } | |
929 | ||
a16e1123 | 930 | /* Third, fire things up! */ |
07719a21 LP |
931 | q = manager_coldplug(m); |
932 | if (q < 0) | |
a16e1123 LP |
933 | r = q; |
934 | ||
9f611ad8 | 935 | if (serialization) { |
a7556052 LP |
936 | assert(m->n_reloading > 0); |
937 | m->n_reloading --; | |
71445ae7 LP |
938 | |
939 | /* Let's wait for the UnitNew/JobNew messages being | |
940 | * sent, before we notify that the reload is | |
941 | * finished */ | |
942 | m->send_reloading_done = true; | |
9f611ad8 LP |
943 | } |
944 | ||
a16e1123 | 945 | return r; |
f50e0a01 LP |
946 | } |
947 | ||
398ef8ba | 948 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 949 | int r; |
7527cb52 | 950 | Transaction *tr; |
e5b5ae50 LP |
951 | |
952 | assert(m); | |
953 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 954 | assert(unit); |
e5b5ae50 | 955 | assert(mode < _JOB_MODE_MAX); |
60918275 | 956 | |
398ef8ba LP |
957 | if (mode == JOB_ISOLATE && type != JOB_START) { |
958 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 959 | return -EINVAL; |
398ef8ba | 960 | } |
c497c7a9 | 961 | |
ac155bb8 | 962 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
963 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
964 | return -EPERM; | |
965 | } | |
966 | ||
66870f90 ZJS |
967 | log_debug_unit(unit->id, |
968 | "Trying to enqueue job %s/%s/%s", unit->id, | |
969 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 970 | |
e0209d83 MS |
971 | job_type_collapse(&type, unit); |
972 | ||
23ade460 | 973 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
974 | if (!tr) |
975 | return -ENOMEM; | |
11dd41ce | 976 | |
7527cb52 MS |
977 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
978 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 979 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
980 | if (r < 0) |
981 | goto tr_abort; | |
c497c7a9 | 982 | |
7527cb52 MS |
983 | if (mode == JOB_ISOLATE) { |
984 | r = transaction_add_isolate_jobs(tr, m); | |
985 | if (r < 0) | |
986 | goto tr_abort; | |
987 | } | |
988 | ||
989 | r = transaction_activate(tr, m, mode, e); | |
990 | if (r < 0) | |
991 | goto tr_abort; | |
e5b5ae50 | 992 | |
66870f90 ZJS |
993 | log_debug_unit(unit->id, |
994 | "Enqueued job %s/%s as %u", unit->id, | |
995 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 996 | |
e5b5ae50 | 997 | if (_ret) |
b94fbd30 | 998 | *_ret = tr->anchor_job; |
60918275 | 999 | |
7527cb52 | 1000 | transaction_free(tr); |
e5b5ae50 | 1001 | return 0; |
7527cb52 MS |
1002 | |
1003 | tr_abort: | |
1004 | transaction_abort(tr); | |
1005 | transaction_free(tr); | |
1006 | return r; | |
e5b5ae50 | 1007 | } |
60918275 | 1008 | |
398ef8ba | 1009 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
1010 | Unit *unit; |
1011 | int r; | |
1012 | ||
1013 | assert(m); | |
1014 | assert(type < _JOB_TYPE_MAX); | |
1015 | assert(name); | |
1016 | assert(mode < _JOB_MODE_MAX); | |
1017 | ||
c3090674 LP |
1018 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1019 | if (r < 0) | |
28247076 LP |
1020 | return r; |
1021 | ||
398ef8ba | 1022 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1023 | } |
1024 | ||
60918275 LP |
1025 | Job *manager_get_job(Manager *m, uint32_t id) { |
1026 | assert(m); | |
1027 | ||
1028 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1029 | } | |
1030 | ||
87f0e418 | 1031 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1032 | assert(m); |
1033 | assert(name); | |
1034 | ||
87f0e418 | 1035 | return hashmap_get(m->units, name); |
60918275 LP |
1036 | } |
1037 | ||
c1e1601e | 1038 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1039 | Unit *u; |
c1e1601e | 1040 | unsigned n = 0; |
60918275 LP |
1041 | |
1042 | assert(m); | |
1043 | ||
223dabab LP |
1044 | /* Make sure we are not run recursively */ |
1045 | if (m->dispatching_load_queue) | |
c1e1601e | 1046 | return 0; |
223dabab LP |
1047 | |
1048 | m->dispatching_load_queue = true; | |
1049 | ||
87f0e418 | 1050 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1051 | * tries to load its data until the queue is empty */ |
1052 | ||
595ed347 MS |
1053 | while ((u = m->load_queue)) { |
1054 | assert(u->in_load_queue); | |
034c6ed7 | 1055 | |
595ed347 | 1056 | unit_load(u); |
c1e1601e | 1057 | n++; |
60918275 LP |
1058 | } |
1059 | ||
223dabab | 1060 | m->dispatching_load_queue = false; |
c1e1601e | 1061 | return n; |
60918275 LP |
1062 | } |
1063 | ||
c2756a68 LP |
1064 | int manager_load_unit_prepare( |
1065 | Manager *m, | |
1066 | const char *name, | |
1067 | const char *path, | |
1068 | DBusError *e, | |
1069 | Unit **_ret) { | |
1070 | ||
87f0e418 | 1071 | Unit *ret; |
7d17cfbc | 1072 | UnitType t; |
60918275 LP |
1073 | int r; |
1074 | ||
1075 | assert(m); | |
9e2f7c11 | 1076 | assert(name || path); |
60918275 | 1077 | |
db06e3b6 LP |
1078 | /* This will prepare the unit for loading, but not actually |
1079 | * load anything from disk. */ | |
0301abf4 | 1080 | |
398ef8ba LP |
1081 | if (path && !is_path(path)) { |
1082 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 1083 | return -EINVAL; |
398ef8ba | 1084 | } |
9e2f7c11 LP |
1085 | |
1086 | if (!name) | |
9eb977db | 1087 | name = path_get_file_name(path); |
9e2f7c11 | 1088 | |
7d17cfbc MS |
1089 | t = unit_name_to_type(name); |
1090 | ||
5f739699 | 1091 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 1092 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 1093 | return -EINVAL; |
398ef8ba | 1094 | } |
60918275 | 1095 | |
7d17cfbc MS |
1096 | ret = manager_get_unit(m, name); |
1097 | if (ret) { | |
034c6ed7 | 1098 | *_ret = ret; |
413d6313 | 1099 | return 1; |
034c6ed7 | 1100 | } |
60918275 | 1101 | |
7d17cfbc MS |
1102 | ret = unit_new(m, unit_vtable[t]->object_size); |
1103 | if (!ret) | |
60918275 LP |
1104 | return -ENOMEM; |
1105 | ||
7d17cfbc | 1106 | if (path) { |
ac155bb8 MS |
1107 | ret->fragment_path = strdup(path); |
1108 | if (!ret->fragment_path) { | |
0301abf4 LP |
1109 | unit_free(ret); |
1110 | return -ENOMEM; | |
1111 | } | |
7d17cfbc | 1112 | } |
0301abf4 | 1113 | |
1058cbf2 ZJS |
1114 | r = unit_add_name(ret, name); |
1115 | if (r < 0) { | |
87f0e418 | 1116 | unit_free(ret); |
1ffba6fe | 1117 | return r; |
60918275 LP |
1118 | } |
1119 | ||
87f0e418 | 1120 | unit_add_to_load_queue(ret); |
c1e1601e | 1121 | unit_add_to_dbus_queue(ret); |
949061f0 | 1122 | unit_add_to_gc_queue(ret); |
c1e1601e | 1123 | |
db06e3b6 LP |
1124 | if (_ret) |
1125 | *_ret = ret; | |
1126 | ||
1127 | return 0; | |
1128 | } | |
1129 | ||
c2756a68 LP |
1130 | int manager_load_unit( |
1131 | Manager *m, | |
1132 | const char *name, | |
1133 | const char *path, | |
1134 | DBusError *e, | |
1135 | Unit **_ret) { | |
1136 | ||
db06e3b6 LP |
1137 | int r; |
1138 | ||
1139 | assert(m); | |
1140 | ||
1141 | /* This will load the service information files, but not actually | |
1142 | * start any services or anything. */ | |
1143 | ||
c3090674 LP |
1144 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1145 | if (r != 0) | |
db06e3b6 LP |
1146 | return r; |
1147 | ||
f50e0a01 | 1148 | manager_dispatch_load_queue(m); |
60918275 | 1149 | |
9e2f7c11 | 1150 | if (_ret) |
413d6313 | 1151 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1152 | |
60918275 LP |
1153 | return 0; |
1154 | } | |
a66d02c3 | 1155 | |
cea8e32e | 1156 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1157 | Iterator i; |
a66d02c3 LP |
1158 | Job *j; |
1159 | ||
1160 | assert(s); | |
1161 | assert(f); | |
1162 | ||
034c6ed7 | 1163 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1164 | job_dump(j, f, prefix); |
a66d02c3 LP |
1165 | } |
1166 | ||
87f0e418 | 1167 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1168 | Iterator i; |
87f0e418 | 1169 | Unit *u; |
11dd41ce | 1170 | const char *t; |
a66d02c3 LP |
1171 | |
1172 | assert(s); | |
1173 | assert(f); | |
1174 | ||
87f0e418 | 1175 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1176 | if (u->id == t) |
87f0e418 | 1177 | unit_dump(u, f, prefix); |
a66d02c3 | 1178 | } |
7fad411c LP |
1179 | |
1180 | void manager_clear_jobs(Manager *m) { | |
1181 | Job *j; | |
1182 | ||
1183 | assert(m); | |
1184 | ||
7fad411c | 1185 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1186 | /* No need to recurse. We're cancelling all jobs. */ |
1187 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1188 | } |
83c60c9f | 1189 | |
c1e1601e | 1190 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1191 | Job *j; |
c1e1601e | 1192 | unsigned n = 0; |
83c60c9f | 1193 | |
034c6ed7 | 1194 | if (m->dispatching_run_queue) |
c1e1601e | 1195 | return 0; |
034c6ed7 LP |
1196 | |
1197 | m->dispatching_run_queue = true; | |
9152c765 | 1198 | |
034c6ed7 | 1199 | while ((j = m->run_queue)) { |
ac1135be | 1200 | assert(j->installed); |
034c6ed7 LP |
1201 | assert(j->in_run_queue); |
1202 | ||
1203 | job_run_and_invalidate(j); | |
c1e1601e | 1204 | n++; |
9152c765 | 1205 | } |
034c6ed7 LP |
1206 | |
1207 | m->dispatching_run_queue = false; | |
03b717a3 | 1208 | |
a0b64226 | 1209 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1210 | manager_watch_jobs_in_progress(m); |
1211 | ||
31a7eb86 ZJS |
1212 | if (m->n_on_console > 0) |
1213 | manager_watch_idle_pipe(m); | |
1214 | ||
c1e1601e LP |
1215 | return n; |
1216 | } | |
1217 | ||
1218 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
1219 | Job *j; | |
595ed347 | 1220 | Unit *u; |
c1e1601e LP |
1221 | unsigned n = 0; |
1222 | ||
1223 | assert(m); | |
1224 | ||
1225 | if (m->dispatching_dbus_queue) | |
1226 | return 0; | |
1227 | ||
1228 | m->dispatching_dbus_queue = true; | |
1229 | ||
595ed347 MS |
1230 | while ((u = m->dbus_unit_queue)) { |
1231 | assert(u->in_dbus_queue); | |
c1e1601e | 1232 | |
595ed347 | 1233 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1234 | n++; |
1235 | } | |
1236 | ||
1237 | while ((j = m->dbus_job_queue)) { | |
1238 | assert(j->in_dbus_queue); | |
1239 | ||
1240 | bus_job_send_change_signal(j); | |
1241 | n++; | |
1242 | } | |
1243 | ||
1244 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1245 | |
1246 | if (m->send_reloading_done) { | |
1247 | m->send_reloading_done = false; | |
1248 | ||
1249 | bus_broadcast_reloading(m, false); | |
1250 | } | |
1251 | ||
c1e1601e | 1252 | return n; |
9152c765 LP |
1253 | } |
1254 | ||
8c47c732 LP |
1255 | static int manager_process_notify_fd(Manager *m) { |
1256 | ssize_t n; | |
1257 | ||
1258 | assert(m); | |
1259 | ||
1260 | for (;;) { | |
1261 | char buf[4096]; | |
b92bea5d ZJS |
1262 | struct iovec iovec = { |
1263 | .iov_base = buf, | |
1264 | .iov_len = sizeof(buf)-1, | |
1265 | }; | |
1266 | ||
8c47c732 LP |
1267 | union { |
1268 | struct cmsghdr cmsghdr; | |
1269 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1270 | } control = {}; |
1271 | ||
1272 | struct msghdr msghdr = { | |
1273 | .msg_iov = &iovec, | |
1274 | .msg_iovlen = 1, | |
1275 | .msg_control = &control, | |
1276 | .msg_controllen = sizeof(control), | |
1277 | }; | |
1278 | struct ucred *ucred; | |
8c47c732 | 1279 | Unit *u; |
7fd1b19b | 1280 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1281 | |
bd0af849 ZJS |
1282 | n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT); |
1283 | if (n <= 0) { | |
b92bea5d | 1284 | if (n == 0) |
8c47c732 LP |
1285 | return -EIO; |
1286 | ||
f6144808 | 1287 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1288 | break; |
1289 | ||
1290 | return -errno; | |
1291 | } | |
1292 | ||
1293 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1294 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1295 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1296 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1297 | log_warning("Received notify message without credentials. Ignoring."); | |
1298 | continue; | |
1299 | } | |
1300 | ||
1301 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1302 | ||
bd0af849 ZJS |
1303 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1304 | if (!u) { | |
4ad49000 | 1305 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1306 | if (!u) { |
7989e1f2 | 1307 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1308 | continue; |
1309 | } | |
bd0af849 | 1310 | } |
8c47c732 | 1311 | |
8c40acf7 LP |
1312 | assert((size_t) n < sizeof(buf)); |
1313 | buf[n] = 0; | |
bd0af849 ZJS |
1314 | tags = strv_split(buf, "\n\r"); |
1315 | if (!tags) | |
1316 | return log_oom(); | |
8c47c732 | 1317 | |
66870f90 | 1318 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1319 | |
1320 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1321 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1322 | } |
1323 | ||
1324 | return 0; | |
1325 | } | |
1326 | ||
034c6ed7 | 1327 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1328 | assert(m); |
1329 | ||
1330 | for (;;) { | |
b92bea5d | 1331 | siginfo_t si = {}; |
87f0e418 | 1332 | Unit *u; |
8c47c732 | 1333 | int r; |
9152c765 | 1334 | |
4112df16 LP |
1335 | /* First we call waitd() for a PID and do not reap the |
1336 | * zombie. That way we can still access /proc/$PID for | |
1337 | * it while it is a zombie. */ | |
1338 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1339 | |
1340 | if (errno == ECHILD) | |
1341 | break; | |
1342 | ||
4112df16 LP |
1343 | if (errno == EINTR) |
1344 | continue; | |
1345 | ||
9152c765 | 1346 | return -errno; |
acbb0225 | 1347 | } |
9152c765 | 1348 | |
4112df16 | 1349 | if (si.si_pid <= 0) |
9152c765 LP |
1350 | break; |
1351 | ||
15d5d9d9 | 1352 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1353 | _cleanup_free_ char *name = NULL; |
4112df16 | 1354 | |
87d2c1ff | 1355 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1356 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1357 | } |
1358 | ||
8c47c732 LP |
1359 | /* Let's flush any message the dying child might still |
1360 | * have queued for us. This ensures that the process | |
1361 | * still exists in /proc so that we can figure out | |
1362 | * which cgroup and hence unit it belongs to. */ | |
bd0af849 ZJS |
1363 | r = manager_process_notify_fd(m); |
1364 | if (r < 0) | |
8c47c732 LP |
1365 | return r; |
1366 | ||
1367 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1368 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1369 | if (!u) | |
4ad49000 | 1370 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1371 | |
4112df16 LP |
1372 | /* And now, we actually reap the zombie. */ |
1373 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1374 | if (errno == EINTR) | |
1375 | continue; | |
1376 | ||
1377 | return -errno; | |
1378 | } | |
1379 | ||
034c6ed7 LP |
1380 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1381 | continue; | |
1382 | ||
bb00e604 LP |
1383 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1384 | (long unsigned) si.si_pid, | |
4112df16 LP |
1385 | sigchld_code_to_string(si.si_code), |
1386 | si.si_status, | |
d06dacd0 LP |
1387 | strna(si.si_code == CLD_EXITED |
1388 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1389 | : signal_to_string(si.si_status))); | |
acbb0225 | 1390 | |
8c47c732 | 1391 | if (!u) |
9152c765 LP |
1392 | continue; |
1393 | ||
66870f90 ZJS |
1394 | log_debug_unit(u->id, |
1395 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1396 | |
c6c18be3 | 1397 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1398 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1399 | } |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | ||
7d793605 | 1404 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1405 | int r; |
398ef8ba LP |
1406 | DBusError error; |
1407 | ||
1408 | dbus_error_init(&error); | |
1409 | ||
66870f90 | 1410 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1411 | |
bd0af849 ZJS |
1412 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1413 | if (r < 0) | |
66870f90 ZJS |
1414 | log_error_unit(name, |
1415 | "Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1416 | |
398ef8ba | 1417 | dbus_error_free(&error); |
a1b256b0 LP |
1418 | |
1419 | return r; | |
28247076 LP |
1420 | } |
1421 | ||
a16e1123 | 1422 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1423 | ssize_t n; |
1424 | struct signalfd_siginfo sfsi; | |
1425 | bool sigchld = false; | |
1426 | ||
1427 | assert(m); | |
1428 | ||
1429 | for (;;) { | |
57cb4adf LP |
1430 | n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi)); |
1431 | if (n != sizeof(sfsi)) { | |
9152c765 LP |
1432 | |
1433 | if (n >= 0) | |
1434 | return -EIO; | |
1435 | ||
63090775 | 1436 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1437 | break; |
9152c765 LP |
1438 | |
1439 | return -errno; | |
1440 | } | |
1441 | ||
67370238 LP |
1442 | if (sfsi.ssi_pid > 0) { |
1443 | char *p = NULL; | |
1444 | ||
87d2c1ff | 1445 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1446 | |
67370238 | 1447 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1448 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1449 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1450 | free(p); | |
1451 | } else | |
4e240ab0 | 1452 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1453 | |
b9cd2ec1 LP |
1454 | switch (sfsi.ssi_signo) { |
1455 | ||
4112df16 | 1456 | case SIGCHLD: |
9152c765 | 1457 | sigchld = true; |
b9cd2ec1 LP |
1458 | break; |
1459 | ||
6632c602 | 1460 | case SIGTERM: |
67445f4e | 1461 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1462 | /* This is for compatibility with the |
1463 | * original sysvinit */ | |
e11dc4a2 | 1464 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1465 | break; |
1466 | } | |
84e9af1e | 1467 | |
a1b256b0 | 1468 | /* Fall through */ |
e11dc4a2 LP |
1469 | |
1470 | case SIGINT: | |
67445f4e | 1471 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1472 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1473 | break; |
1474 | } | |
1475 | ||
a1b256b0 | 1476 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1477 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1478 | m->exit_code = MANAGER_EXIT; |
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | break; | |
84e9af1e | 1483 | |
28247076 | 1484 | case SIGWINCH: |
67445f4e | 1485 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1486 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1487 | |
28247076 LP |
1488 | /* This is a nop on non-init */ |
1489 | break; | |
84e9af1e | 1490 | |
28247076 | 1491 | case SIGPWR: |
67445f4e | 1492 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1493 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1494 | |
28247076 | 1495 | /* This is a nop on non-init */ |
84e9af1e | 1496 | break; |
6632c602 | 1497 | |
1005d14f | 1498 | case SIGUSR1: { |
57ee42ce LP |
1499 | Unit *u; |
1500 | ||
1501 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1502 | ||
1503 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1504 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1505 | bus_init(m, true); |
57ee42ce LP |
1506 | } |
1507 | ||
1508 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1509 | log_info("Loading D-Bus service..."); | |
7d793605 | 1510 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1511 | } |
1512 | ||
1513 | break; | |
1514 | } | |
1515 | ||
2149e37c LP |
1516 | case SIGUSR2: { |
1517 | FILE *f; | |
1518 | char *dump = NULL; | |
1519 | size_t size; | |
1520 | ||
1521 | if (!(f = open_memstream(&dump, &size))) { | |
1522 | log_warning("Failed to allocate memory stream."); | |
1523 | break; | |
1524 | } | |
1525 | ||
1526 | manager_dump_units(m, f, "\t"); | |
1527 | manager_dump_jobs(m, f, "\t"); | |
1528 | ||
1529 | if (ferror(f)) { | |
1530 | fclose(f); | |
1531 | free(dump); | |
1532 | log_warning("Failed to write status stream"); | |
1533 | break; | |
1534 | } | |
1535 | ||
1536 | fclose(f); | |
1537 | log_dump(LOG_INFO, dump); | |
1538 | free(dump); | |
1539 | ||
1005d14f | 1540 | break; |
2149e37c | 1541 | } |
1005d14f | 1542 | |
a16e1123 LP |
1543 | case SIGHUP: |
1544 | m->exit_code = MANAGER_RELOAD; | |
1545 | break; | |
1546 | ||
7d793605 | 1547 | default: { |
253ee27a | 1548 | |
0003d1ab LP |
1549 | /* Starting SIGRTMIN+0 */ |
1550 | static const char * const target_table[] = { | |
7d793605 LP |
1551 | [0] = SPECIAL_DEFAULT_TARGET, |
1552 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1553 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1554 | [3] = SPECIAL_HALT_TARGET, |
1555 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1556 | [5] = SPECIAL_REBOOT_TARGET, |
1557 | [6] = SPECIAL_KEXEC_TARGET | |
1558 | }; | |
1559 | ||
1560 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1561 | static const ManagerExitCode code_table[] = { | |
1562 | [0] = MANAGER_HALT, | |
1563 | [1] = MANAGER_POWEROFF, | |
1564 | [2] = MANAGER_REBOOT, | |
1565 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1566 | }; |
1567 | ||
1568 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1569 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1570 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1571 | manager_start_target(m, target_table[idx], | |
1572 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1573 | break; |
1574 | } | |
1575 | ||
0003d1ab LP |
1576 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1577 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1578 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1579 | break; | |
1580 | } | |
1581 | ||
0658666b LP |
1582 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1583 | ||
1584 | case 20: | |
1585 | log_debug("Enabling showing of status."); | |
27d340c7 | 1586 | manager_set_show_status(m, true); |
0658666b LP |
1587 | break; |
1588 | ||
1589 | case 21: | |
1590 | log_debug("Disabling showing of status."); | |
27d340c7 | 1591 | manager_set_show_status(m, false); |
0658666b LP |
1592 | break; |
1593 | ||
253ee27a LP |
1594 | case 22: |
1595 | log_set_max_level(LOG_DEBUG); | |
1596 | log_notice("Setting log level to debug."); | |
1597 | break; | |
1598 | ||
1599 | case 23: | |
1600 | log_set_max_level(LOG_INFO); | |
1601 | log_notice("Setting log level to info."); | |
1602 | break; | |
1603 | ||
600b704e LP |
1604 | case 24: |
1605 | if (m->running_as == SYSTEMD_USER) { | |
1606 | m->exit_code = MANAGER_EXIT; | |
1607 | return 0; | |
1608 | } | |
1609 | ||
1610 | /* This is a nop on init */ | |
1611 | break; | |
1612 | ||
4cfa2c99 LP |
1613 | case 26: |
1614 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1615 | log_notice("Setting log target to journal-or-kmsg."); | |
1616 | break; | |
1617 | ||
253ee27a LP |
1618 | case 27: |
1619 | log_set_target(LOG_TARGET_CONSOLE); | |
1620 | log_notice("Setting log target to console."); | |
1621 | break; | |
1622 | ||
1623 | case 28: | |
1624 | log_set_target(LOG_TARGET_KMSG); | |
1625 | log_notice("Setting log target to kmsg."); | |
1626 | break; | |
1627 | ||
1628 | case 29: | |
1629 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1630 | log_notice("Setting log target to syslog-or-kmsg."); | |
1631 | break; | |
1632 | ||
0658666b | 1633 | default: |
4e240ab0 | 1634 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1635 | } |
b9cd2ec1 | 1636 | } |
7d793605 | 1637 | } |
9152c765 LP |
1638 | } |
1639 | ||
1640 | if (sigchld) | |
034c6ed7 LP |
1641 | return manager_dispatch_sigchld(m); |
1642 | ||
1643 | return 0; | |
1644 | } | |
1645 | ||
a16e1123 | 1646 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1647 | int r; |
acbb0225 | 1648 | Watch *w; |
034c6ed7 LP |
1649 | |
1650 | assert(m); | |
1651 | assert(ev); | |
1652 | ||
3df5bf61 | 1653 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1654 | |
40dde66f LP |
1655 | if (w->type == WATCH_INVALID) |
1656 | return 0; | |
1657 | ||
acbb0225 | 1658 | switch (w->type) { |
034c6ed7 | 1659 | |
ef734fd6 | 1660 | case WATCH_SIGNAL: |
034c6ed7 | 1661 | |
acbb0225 | 1662 | /* An incoming signal? */ |
f94ea366 | 1663 | if (ev->events != EPOLLIN) |
acbb0225 | 1664 | return -EINVAL; |
034c6ed7 | 1665 | |
a16e1123 | 1666 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1667 | return r; |
034c6ed7 | 1668 | |
acbb0225 | 1669 | break; |
034c6ed7 | 1670 | |
8c47c732 LP |
1671 | case WATCH_NOTIFY: |
1672 | ||
1673 | /* An incoming daemon notification event? */ | |
1674 | if (ev->events != EPOLLIN) | |
1675 | return -EINVAL; | |
1676 | ||
1677 | if ((r = manager_process_notify_fd(m)) < 0) | |
1678 | return r; | |
1679 | ||
1680 | break; | |
1681 | ||
acbb0225 | 1682 | case WATCH_FD: |
034c6ed7 | 1683 | |
acbb0225 | 1684 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1685 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1686 | break; |
034c6ed7 | 1687 | |
faf919f1 LP |
1688 | case WATCH_UNIT_TIMER: |
1689 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1690 | uint64_t v; |
1691 | ssize_t k; | |
034c6ed7 | 1692 | |
acbb0225 | 1693 | /* Some timer event, to be dispatched to the units */ |
68b29a9f LP |
1694 | k = read(w->fd, &v, sizeof(v)); |
1695 | if (k != sizeof(v)) { | |
034c6ed7 | 1696 | |
acbb0225 LP |
1697 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1698 | break; | |
034c6ed7 | 1699 | |
8742514c | 1700 | log_error("Failed to read timer event counter: %s", k < 0 ? strerror(-k) : "Short read"); |
acbb0225 | 1701 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1702 | } |
1703 | ||
faf919f1 LP |
1704 | if (w->type == WATCH_UNIT_TIMER) |
1705 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1706 | else | |
1707 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1708 | break; |
1709 | } | |
1710 | ||
ef734fd6 LP |
1711 | case WATCH_MOUNT: |
1712 | /* Some mount table change, intended for the mount subsystem */ | |
1713 | mount_fd_event(m, ev->events); | |
1714 | break; | |
1715 | ||
4e434314 LP |
1716 | case WATCH_SWAP: |
1717 | /* Some swap table change, intended for the swap subsystem */ | |
1718 | swap_fd_event(m, ev->events); | |
1719 | break; | |
1720 | ||
f94ea366 LP |
1721 | case WATCH_UDEV: |
1722 | /* Some notification from udev, intended for the device subsystem */ | |
1723 | device_fd_event(m, ev->events); | |
1724 | break; | |
1725 | ||
ea430986 LP |
1726 | case WATCH_DBUS_WATCH: |
1727 | bus_watch_event(m, w, ev->events); | |
1728 | break; | |
1729 | ||
1730 | case WATCH_DBUS_TIMEOUT: | |
1731 | bus_timeout_event(m, w, ev->events); | |
1732 | break; | |
1733 | ||
8742514c LP |
1734 | case WATCH_TIME_CHANGE: { |
1735 | Unit *u; | |
1736 | Iterator i; | |
1737 | ||
1738 | log_struct(LOG_INFO, | |
1739 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1740 | "MESSAGE=Time has been changed", | |
1741 | NULL); | |
1742 | ||
1743 | /* Restart the watch */ | |
f1324eaa ES |
1744 | epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->time_change_watch.fd, |
1745 | NULL); | |
8742514c LP |
1746 | close_nointr_nofail(m->time_change_watch.fd); |
1747 | watch_init(&m->time_change_watch); | |
1748 | manager_setup_time_change(m); | |
1749 | ||
1750 | HASHMAP_FOREACH(u, m->units, i) { | |
1751 | if (UNIT_VTABLE(u)->time_change) | |
1752 | UNIT_VTABLE(u)->time_change(u); | |
1753 | } | |
1754 | ||
1755 | break; | |
1756 | } | |
1757 | ||
03b717a3 MS |
1758 | case WATCH_JOBS_IN_PROGRESS: { |
1759 | uint64_t v; | |
1760 | ||
1761 | /* not interested in the data */ | |
1762 | read(w->fd, &v, sizeof(v)); | |
1763 | ||
1764 | manager_print_jobs_in_progress(m); | |
1765 | break; | |
1766 | } | |
1767 | ||
31a7eb86 ZJS |
1768 | case WATCH_IDLE_PIPE: { |
1769 | m->no_console_output = true; | |
1770 | ||
1771 | manager_unwatch_idle_pipe(m); | |
1772 | close_idle_pipe(m); | |
1773 | break; | |
1774 | } | |
1775 | ||
acbb0225 | 1776 | default: |
c5fd1e57 | 1777 | log_error("event type=%i", w->type); |
acbb0225 | 1778 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1779 | } |
9152c765 LP |
1780 | |
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | int manager_loop(Manager *m) { | |
1785 | int r; | |
9152c765 | 1786 | |
fac9f8df | 1787 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1788 | |
9152c765 | 1789 | assert(m); |
a16e1123 | 1790 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1791 | |
fe51822e LP |
1792 | /* Release the path cache */ |
1793 | set_free_free(m->unit_path_cache); | |
1794 | m->unit_path_cache = NULL; | |
1795 | ||
b0c918b9 LP |
1796 | manager_check_finished(m); |
1797 | ||
a4312405 LP |
1798 | /* There might still be some zombies hanging around from |
1799 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1800 | r = manager_dispatch_sigchld(m); |
1801 | if (r < 0) | |
a4312405 LP |
1802 | return r; |
1803 | ||
a16e1123 | 1804 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1805 | struct epoll_event event; |
1806 | int n; | |
c757a65b | 1807 | int wait_msec = -1; |
9152c765 | 1808 | |
67445f4e | 1809 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1810 | watchdog_ping(); |
1811 | ||
ea430986 LP |
1812 | if (!ratelimit_test(&rl)) { |
1813 | /* Yay, something is going seriously wrong, pause a little */ | |
1814 | log_warning("Looping too fast. Throttling execution a little."); | |
1815 | sleep(1); | |
e96d6be7 | 1816 | continue; |
ea430986 LP |
1817 | } |
1818 | ||
37a8e683 | 1819 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1820 | continue; |
1821 | ||
cf1265e1 | 1822 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1823 | continue; |
1824 | ||
cf1265e1 | 1825 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1826 | continue; |
034c6ed7 | 1827 | |
cf1265e1 | 1828 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1829 | continue; |
1830 | ||
cf1265e1 | 1831 | if (manager_dispatch_run_queue(m) > 0) |
c1e1601e LP |
1832 | continue; |
1833 | ||
cf1265e1 | 1834 | if (bus_dispatch(m) > 0) |
4ad49000 LP |
1835 | continue; |
1836 | ||
c1e1601e | 1837 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1838 | continue; |
ea430986 | 1839 | |
e04aad61 LP |
1840 | if (swap_dispatch_reload(m) > 0) |
1841 | continue; | |
1842 | ||
c757a65b | 1843 | /* Sleep for half the watchdog time */ |
67445f4e | 1844 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
c757a65b LP |
1845 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); |
1846 | if (wait_msec <= 0) | |
1847 | wait_msec = 1; | |
1848 | } else | |
1849 | wait_msec = -1; | |
1850 | ||
e96d6be7 LP |
1851 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1852 | if (n < 0) { | |
9152c765 | 1853 | |
6089f4a9 | 1854 | if (errno == EINTR) |
9152c765 LP |
1855 | continue; |
1856 | ||
1857 | return -errno; | |
e96d6be7 LP |
1858 | } else if (n == 0) |
1859 | continue; | |
9152c765 | 1860 | |
957ca890 | 1861 | assert(n == 1); |
b9cd2ec1 | 1862 | |
e96d6be7 LP |
1863 | r = process_event(m, &event); |
1864 | if (r < 0) | |
957ca890 | 1865 | return r; |
a16e1123 | 1866 | } |
957ca890 | 1867 | |
a16e1123 | 1868 | return m->exit_code; |
83c60c9f | 1869 | } |
ea430986 | 1870 | |
80fbf05e | 1871 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ede3a796 | 1872 | _cleanup_free_ char *n = NULL; |
ea430986 | 1873 | Unit *u; |
80fbf05e | 1874 | int r; |
ea430986 LP |
1875 | |
1876 | assert(m); | |
1877 | assert(s); | |
1878 | assert(_u); | |
1879 | ||
ede3a796 LP |
1880 | r = unit_name_from_dbus_path(s, &n); |
1881 | if (r < 0) | |
1882 | return r; | |
ea430986 | 1883 | |
80fbf05e | 1884 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1885 | if (r < 0) |
1886 | return r; | |
ea430986 LP |
1887 | |
1888 | *_u = u; | |
1889 | ||
1890 | return 0; | |
1891 | } | |
86fbf370 LP |
1892 | |
1893 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1894 | Job *j; | |
1895 | unsigned id; | |
1896 | int r; | |
1897 | ||
1898 | assert(m); | |
1899 | assert(s); | |
1900 | assert(_j); | |
1901 | ||
1902 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1903 | return -EINVAL; | |
1904 | ||
8742514c LP |
1905 | r = safe_atou(s + 30, &id); |
1906 | if (r < 0) | |
86fbf370 LP |
1907 | return r; |
1908 | ||
8742514c LP |
1909 | j = manager_get_job(m, id); |
1910 | if (!j) | |
86fbf370 LP |
1911 | return -ENOENT; |
1912 | ||
1913 | *_j = j; | |
1914 | ||
1915 | return 0; | |
1916 | } | |
dfcd764e | 1917 | |
4927fcae | 1918 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1919 | |
4927fcae LP |
1920 | #ifdef HAVE_AUDIT |
1921 | char *p; | |
c1165f82 | 1922 | int audit_fd; |
e537352b | 1923 | |
c1165f82 LP |
1924 | audit_fd = get_audit_fd(); |
1925 | if (audit_fd < 0) | |
e537352b LP |
1926 | return; |
1927 | ||
bbd3a7ba LP |
1928 | /* Don't generate audit events if the service was already |
1929 | * started and we're just deserializing */ | |
a7556052 | 1930 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1931 | return; |
1932 | ||
67445f4e | 1933 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1934 | return; |
1935 | ||
ac155bb8 | 1936 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1937 | return; |
1938 | ||
bd0af849 ZJS |
1939 | p = unit_name_to_prefix_and_instance(u->id); |
1940 | if (!p) { | |
66870f90 ZJS |
1941 | log_error_unit(u->id, |
1942 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1943 | return; |
1944 | } | |
1945 | ||
c1165f82 | 1946 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1947 | if (errno == EPERM) { |
1948 | /* We aren't allowed to send audit messages? | |
44785992 | 1949 | * Then let's not retry again. */ |
c1165f82 | 1950 | close_audit_fd(); |
44785992 LP |
1951 | } else |
1952 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1953 | } |
e537352b | 1954 | |
4927fcae LP |
1955 | free(p); |
1956 | #endif | |
e537352b | 1957 | |
e537352b LP |
1958 | } |
1959 | ||
e983b760 LP |
1960 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1961 | int fd = -1; | |
1962 | union sockaddr_union sa; | |
1963 | int n = 0; | |
1964 | char *message = NULL; | |
e983b760 LP |
1965 | |
1966 | /* Don't generate plymouth events if the service was already | |
1967 | * started and we're just deserializing */ | |
a7556052 | 1968 | if (m->n_reloading > 0) |
e983b760 LP |
1969 | return; |
1970 | ||
67445f4e | 1971 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1972 | return; |
1973 | ||
ac155bb8 MS |
1974 | if (u->type != UNIT_SERVICE && |
1975 | u->type != UNIT_MOUNT && | |
1976 | u->type != UNIT_SWAP) | |
e983b760 LP |
1977 | return; |
1978 | ||
1979 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1980 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1981 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1982 | if (fd < 0) { | |
e983b760 LP |
1983 | log_error("socket() failed: %m"); |
1984 | return; | |
1985 | } | |
1986 | ||
1987 | zero(sa); | |
1988 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1989 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1990 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1991 | |
1992 | if (errno != EPIPE && | |
1993 | errno != EAGAIN && | |
1994 | errno != ENOENT && | |
1995 | errno != ECONNREFUSED && | |
1996 | errno != ECONNRESET && | |
1997 | errno != ECONNABORTED) | |
1998 | log_error("connect() failed: %m"); | |
1999 | ||
2000 | goto finish; | |
2001 | } | |
2002 | ||
ac155bb8 | 2003 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 2004 | log_oom(); |
e983b760 LP |
2005 | goto finish; |
2006 | } | |
2007 | ||
2008 | errno = 0; | |
bd40a2d8 | 2009 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
2010 | |
2011 | if (errno != EPIPE && | |
2012 | errno != EAGAIN && | |
2013 | errno != ENOENT && | |
2014 | errno != ECONNREFUSED && | |
2015 | errno != ECONNRESET && | |
2016 | errno != ECONNABORTED) | |
2017 | log_error("Failed to write Plymouth message: %m"); | |
2018 | ||
2019 | goto finish; | |
2020 | } | |
2021 | ||
2022 | finish: | |
2023 | if (fd >= 0) | |
2024 | close_nointr_nofail(fd); | |
2025 | ||
2026 | free(message); | |
2027 | } | |
2028 | ||
05e343b7 LP |
2029 | void manager_dispatch_bus_name_owner_changed( |
2030 | Manager *m, | |
2031 | const char *name, | |
2032 | const char* old_owner, | |
2033 | const char *new_owner) { | |
2034 | ||
2035 | Unit *u; | |
2036 | ||
2037 | assert(m); | |
2038 | assert(name); | |
2039 | ||
2040 | if (!(u = hashmap_get(m->watch_bus, name))) | |
2041 | return; | |
2042 | ||
2043 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
2044 | } | |
2045 | ||
2046 | void manager_dispatch_bus_query_pid_done( | |
2047 | Manager *m, | |
2048 | const char *name, | |
2049 | pid_t pid) { | |
2050 | ||
2051 | Unit *u; | |
2052 | ||
2053 | assert(m); | |
2054 | assert(name); | |
2055 | assert(pid >= 1); | |
2056 | ||
2057 | if (!(u = hashmap_get(m->watch_bus, name))) | |
2058 | return; | |
2059 | ||
2060 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
2061 | } | |
2062 | ||
d8d5ab98 | 2063 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 2064 | char *path = NULL; |
a16e1123 LP |
2065 | int fd; |
2066 | FILE *f; | |
2067 | ||
2068 | assert(_f); | |
2069 | ||
67445f4e | 2070 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 2071 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
2072 | else |
2073 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 2074 | |
b925e726 LP |
2075 | if (!path) |
2076 | return -ENOMEM; | |
a16e1123 | 2077 | |
5c0d398d LP |
2078 | RUN_WITH_UMASK(0077) { |
2079 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
2080 | } | |
a16e1123 LP |
2081 | |
2082 | if (fd < 0) { | |
2083 | free(path); | |
2084 | return -errno; | |
2085 | } | |
2086 | ||
2087 | unlink(path); | |
2088 | ||
2089 | log_debug("Serializing state to %s", path); | |
2090 | free(path); | |
2091 | ||
01e10de3 LP |
2092 | f = fdopen(fd, "w+"); |
2093 | if (!f) | |
a16e1123 LP |
2094 | return -errno; |
2095 | ||
2096 | *_f = f; | |
2097 | ||
2098 | return 0; | |
2099 | } | |
2100 | ||
b3680f49 | 2101 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2102 | Iterator i; |
2103 | Unit *u; | |
2104 | const char *t; | |
4a9fd066 | 2105 | char **e; |
a16e1123 LP |
2106 | int r; |
2107 | ||
2108 | assert(m); | |
2109 | assert(f); | |
2110 | assert(fds); | |
2111 | ||
a7556052 | 2112 | m->n_reloading ++; |
38c52d46 | 2113 | |
01d67b43 LP |
2114 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2115 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2116 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2117 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2118 | |
915b3753 LP |
2119 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
2120 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); | |
2121 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); | |
e9ddabc2 | 2122 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2123 | |
26a1efdf | 2124 | if (!in_initrd()) { |
915b3753 | 2125 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 HH |
2126 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
2127 | } | |
47a483a1 | 2128 | |
b3680f49 HH |
2129 | if (!switching_root) { |
2130 | STRV_FOREACH(e, m->environment) { | |
2131 | _cleanup_free_ char *ce; | |
4a9fd066 | 2132 | |
b3680f49 HH |
2133 | ce = cescape(*e); |
2134 | if (ce) | |
2135 | fprintf(f, "env=%s\n", *e); | |
2136 | } | |
4a9fd066 OS |
2137 | } |
2138 | ||
6fa48533 LP |
2139 | bus_serialize(m, f); |
2140 | ||
f2382a94 LP |
2141 | fputc('\n', f); |
2142 | ||
a16e1123 | 2143 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2144 | if (u->id != t) |
a16e1123 LP |
2145 | continue; |
2146 | ||
2147 | if (!unit_can_serialize(u)) | |
2148 | continue; | |
2149 | ||
2150 | /* Start marker */ | |
ac155bb8 | 2151 | fputs(u->id, f); |
a16e1123 LP |
2152 | fputc('\n', f); |
2153 | ||
6fa48533 LP |
2154 | r = unit_serialize(u, f, fds, !switching_root); |
2155 | if (r < 0) { | |
a7556052 | 2156 | m->n_reloading --; |
a16e1123 | 2157 | return r; |
38c52d46 | 2158 | } |
a16e1123 LP |
2159 | } |
2160 | ||
a7556052 LP |
2161 | assert(m->n_reloading > 0); |
2162 | m->n_reloading --; | |
38c52d46 | 2163 | |
a16e1123 LP |
2164 | if (ferror(f)) |
2165 | return -EIO; | |
2166 | ||
b23de6af LP |
2167 | r = bus_fdset_add_all(m, fds); |
2168 | if (r < 0) | |
2169 | return r; | |
2170 | ||
a16e1123 LP |
2171 | return 0; |
2172 | } | |
2173 | ||
2174 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2175 | int r = 0; | |
2176 | ||
2177 | assert(m); | |
2178 | assert(f); | |
2179 | ||
2180 | log_debug("Deserializing state..."); | |
2181 | ||
a7556052 | 2182 | m->n_reloading ++; |
82c64bf5 | 2183 | |
10f8e83c | 2184 | for (;;) { |
20c03b7b | 2185 | char line[LINE_MAX], *l; |
10f8e83c LP |
2186 | |
2187 | if (!fgets(line, sizeof(line), f)) { | |
2188 | if (feof(f)) | |
2189 | r = 0; | |
2190 | else | |
2191 | r = -errno; | |
2192 | ||
2193 | goto finish; | |
2194 | } | |
2195 | ||
2196 | char_array_0(line); | |
2197 | l = strstrip(line); | |
2198 | ||
2199 | if (l[0] == 0) | |
2200 | break; | |
2201 | ||
01d67b43 LP |
2202 | if (startswith(l, "current-job-id=")) { |
2203 | uint32_t id; | |
2204 | ||
2205 | if (safe_atou32(l+15, &id) < 0) | |
2206 | log_debug("Failed to parse current job id value %s", l+15); | |
2207 | else | |
2208 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
2209 | } else if (startswith(l, "n-installed-jobs=")) { |
2210 | uint32_t n; | |
2211 | ||
2212 | if (safe_atou32(l+17, &n) < 0) | |
2213 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2214 | else | |
2215 | m->n_installed_jobs += n; | |
2216 | } else if (startswith(l, "n-failed-jobs=")) { | |
2217 | uint32_t n; | |
2218 | ||
2219 | if (safe_atou32(l+14, &n) < 0) | |
2220 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2221 | else | |
2222 | m->n_failed_jobs += n; | |
01d67b43 LP |
2223 | } else if (startswith(l, "taint-usr=")) { |
2224 | int b; | |
2225 | ||
2226 | if ((b = parse_boolean(l+10)) < 0) | |
2227 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2228 | else | |
2229 | m->taint_usr = m->taint_usr || b; | |
915b3753 LP |
2230 | } else if (startswith(l, "firmware-timestamp=")) |
2231 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2232 | else if (startswith(l, "loader-timestamp=")) | |
2233 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2234 | else if (startswith(l, "kernel-timestamp=")) | |
2235 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2236 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2237 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2238 | else if (startswith(l, "userspace-timestamp=")) |
2239 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2240 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2241 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
4a9fd066 OS |
2242 | else if (startswith(l, "env=")) { |
2243 | _cleanup_free_ char *uce = NULL; | |
2244 | char **e; | |
2245 | ||
2246 | uce = cunescape(l+4); | |
2247 | if (!uce) { | |
2248 | r = -ENOMEM; | |
2249 | goto finish; | |
2250 | } | |
2251 | ||
2252 | e = strv_env_set(m->environment, uce); | |
2253 | if (!e) { | |
2254 | r = -ENOMEM; | |
2255 | goto finish; | |
2256 | } | |
2257 | ||
2258 | strv_free(m->environment); | |
2259 | m->environment = e; | |
6fa48533 | 2260 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2261 | log_debug("Unknown serialization item '%s'", l); |
2262 | } | |
2263 | ||
a16e1123 LP |
2264 | for (;;) { |
2265 | Unit *u; | |
2266 | char name[UNIT_NAME_MAX+2]; | |
2267 | ||
2268 | /* Start marker */ | |
2269 | if (!fgets(name, sizeof(name), f)) { | |
2270 | if (feof(f)) | |
10f8e83c LP |
2271 | r = 0; |
2272 | else | |
2273 | r = -errno; | |
a16e1123 | 2274 | |
82c64bf5 | 2275 | goto finish; |
a16e1123 LP |
2276 | } |
2277 | ||
2278 | char_array_0(name); | |
2279 | ||
bd0af849 ZJS |
2280 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2281 | if (r < 0) | |
82c64bf5 | 2282 | goto finish; |
a16e1123 | 2283 | |
01e10de3 LP |
2284 | r = unit_deserialize(u, f, fds); |
2285 | if (r < 0) | |
82c64bf5 | 2286 | goto finish; |
a16e1123 LP |
2287 | } |
2288 | ||
10f8e83c | 2289 | finish: |
82c64bf5 LP |
2290 | if (ferror(f)) { |
2291 | r = -EIO; | |
2292 | goto finish; | |
2293 | } | |
a16e1123 | 2294 | |
a7556052 LP |
2295 | assert(m->n_reloading > 0); |
2296 | m->n_reloading --; | |
82c64bf5 LP |
2297 | |
2298 | return r; | |
a16e1123 LP |
2299 | } |
2300 | ||
01e10de3 LP |
2301 | int manager_distribute_fds(Manager *m, FDSet *fds) { |
2302 | Unit *u; | |
2303 | Iterator i; | |
2304 | int r; | |
2305 | ||
2306 | assert(m); | |
2307 | ||
2308 | HASHMAP_FOREACH(u, m->units, i) { | |
2309 | ||
2310 | if (fdset_size(fds) <= 0) | |
2311 | break; | |
2312 | ||
2313 | if (UNIT_VTABLE(u)->distribute_fds) { | |
2314 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
2315 | if (r < 0) | |
2316 | return r; | |
2317 | } | |
2318 | } | |
2319 | ||
2320 | return 0; | |
2321 | } | |
2322 | ||
a16e1123 LP |
2323 | int manager_reload(Manager *m) { |
2324 | int r, q; | |
51d122af ZJS |
2325 | _cleanup_fclose_ FILE *f = NULL; |
2326 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2327 | |
2328 | assert(m); | |
2329 | ||
07719a21 LP |
2330 | r = manager_open_serialization(m, &f); |
2331 | if (r < 0) | |
a16e1123 LP |
2332 | return r; |
2333 | ||
a7556052 | 2334 | m->n_reloading ++; |
71445ae7 | 2335 | bus_broadcast_reloading(m, true); |
38c52d46 | 2336 | |
07719a21 LP |
2337 | fds = fdset_new(); |
2338 | if (!fds) { | |
a7556052 | 2339 | m->n_reloading --; |
51d122af | 2340 | return -ENOMEM; |
a16e1123 LP |
2341 | } |
2342 | ||
b3680f49 | 2343 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2344 | if (r < 0) { |
a7556052 | 2345 | m->n_reloading --; |
51d122af | 2346 | return r; |
38c52d46 | 2347 | } |
a16e1123 LP |
2348 | |
2349 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2350 | m->n_reloading --; |
51d122af | 2351 | return -errno; |
a16e1123 LP |
2352 | } |
2353 | ||
2354 | /* From here on there is no way back. */ | |
2355 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2356 | manager_undo_generators(m); |
84e3543e | 2357 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2358 | |
07719a21 | 2359 | /* Find new unit paths */ |
5a1e9937 LP |
2360 | manager_run_generators(m); |
2361 | ||
07719a21 LP |
2362 | q = lookup_paths_init( |
2363 | &m->lookup_paths, m->running_as, true, | |
2364 | m->generator_unit_path, | |
2365 | m->generator_unit_path_early, | |
2366 | m->generator_unit_path_late); | |
2367 | if (q < 0) | |
2368 | r = q; | |
2369 | ||
5a1e9937 LP |
2370 | manager_build_unit_path_cache(m); |
2371 | ||
a16e1123 | 2372 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2373 | q = manager_enumerate(m); |
2374 | if (q < 0) | |
a16e1123 LP |
2375 | r = q; |
2376 | ||
2377 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2378 | q = manager_deserialize(m, f, fds); |
2379 | if (q < 0) | |
a16e1123 LP |
2380 | r = q; |
2381 | ||
2382 | fclose(f); | |
2383 | f = NULL; | |
2384 | ||
2385 | /* Third, fire things up! */ | |
07719a21 LP |
2386 | q = manager_coldplug(m); |
2387 | if (q < 0) | |
a16e1123 LP |
2388 | r = q; |
2389 | ||
a7556052 LP |
2390 | assert(m->n_reloading > 0); |
2391 | m->n_reloading--; | |
9f611ad8 | 2392 | |
71445ae7 LP |
2393 | m->send_reloading_done = true; |
2394 | ||
a16e1123 LP |
2395 | return r; |
2396 | } | |
2397 | ||
6084e22e | 2398 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2399 | Unit *u; |
2400 | ||
2401 | assert(m); | |
2402 | ||
2403 | /* Is the initial job still around? */ | |
bacbccb7 | 2404 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2405 | return true; |
2406 | ||
2407 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2408 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2409 | if (u) | |
ac155bb8 | 2410 | return !!u->job; |
9e58ff9c LP |
2411 | |
2412 | return false; | |
2413 | } | |
2414 | ||
c17ec25e MS |
2415 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2416 | assert(m); | |
2417 | ||
2418 | return m->n_reloading != 0; | |
2419 | } | |
2420 | ||
fdf20a31 | 2421 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2422 | Unit *u; |
2423 | Iterator i; | |
2424 | ||
2425 | assert(m); | |
2426 | ||
2427 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2428 | unit_reset_failed(u); |
5632e374 LP |
2429 | } |
2430 | ||
31afa0a4 | 2431 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2432 | Unit *u; |
2433 | ||
2434 | assert(m); | |
2435 | assert(name); | |
2436 | ||
2437 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2438 | u = manager_get_unit(m, name); |
2439 | if (!u) | |
8f6df3fa LP |
2440 | return true; |
2441 | ||
31afa0a4 | 2442 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2443 | } |
2444 | ||
b0c918b9 | 2445 | void manager_check_finished(Manager *m) { |
7ceba241 | 2446 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2447 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2448 | |
2449 | assert(m); | |
2450 | ||
a0b64226 MS |
2451 | if (m->n_running_jobs == 0) |
2452 | manager_unwatch_jobs_in_progress(m); | |
2453 | ||
5b176ee0 MS |
2454 | if (hashmap_size(m->jobs) > 0) { |
2455 | manager_jobs_in_progress_mod_timer(m); | |
b0c918b9 | 2456 | return; |
5b176ee0 | 2457 | } |
b0c918b9 | 2458 | |
f2b68789 | 2459 | /* Notify Type=idle units that we are done now */ |
31a7eb86 ZJS |
2460 | manager_unwatch_idle_pipe(m); |
2461 | close_idle_pipe(m); | |
f2b68789 | 2462 | |
af6da548 LP |
2463 | /* Turn off confirm spawn now */ |
2464 | m->confirm_spawn = false; | |
2465 | ||
f2b68789 | 2466 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2467 | return; |
2468 | ||
2469 | dual_timestamp_get(&m->finish_timestamp); | |
2470 | ||
67445f4e | 2471 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2472 | |
915b3753 LP |
2473 | /* Note that m->kernel_usec.monotonic is always at 0, |
2474 | * and m->firmware_usec.monotonic and | |
2475 | * m->loader_usec.monotonic should be considered | |
2476 | * negative values. */ | |
2477 | ||
7ceba241 LP |
2478 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2479 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2480 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2481 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2482 | |
e9ddabc2 | 2483 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2484 | |
915b3753 LP |
2485 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2486 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2487 | |
81270860 LP |
2488 | if (!log_on_console()) |
2489 | log_struct(LOG_INFO, | |
1ca6783f | 2490 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2491 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2492 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2493 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2494 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2495 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2496 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2497 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2498 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2499 | NULL); |
18fa6b27 | 2500 | } else { |
915b3753 | 2501 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2502 | initrd_usec = 0; |
2503 | ||
81270860 LP |
2504 | if (!log_on_console()) |
2505 | log_struct(LOG_INFO, | |
1ca6783f | 2506 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2507 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2508 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2509 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2510 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2511 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2512 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2513 | NULL); |
18fa6b27 LP |
2514 | } |
2515 | } else { | |
915b3753 LP |
2516 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2517 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2518 | |
81270860 LP |
2519 | if (!log_on_console()) |
2520 | log_struct(LOG_INFO, | |
1ca6783f | 2521 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2522 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2523 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2524 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2525 | NULL); |
18fa6b27 | 2526 | } |
b0c918b9 | 2527 | |
915b3753 | 2528 | bus_broadcast_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2529 | |
2530 | sd_notifyf(false, | |
2531 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2532 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2533 | } |
2534 | ||
07719a21 LP |
2535 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2536 | char *p; | |
2537 | int r; | |
2538 | ||
2539 | assert(m); | |
2540 | assert(generator); | |
2541 | assert(name); | |
2542 | ||
2543 | if (*generator) | |
2544 | return 0; | |
2545 | ||
67445f4e | 2546 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2547 | |
2548 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2549 | if (!p) |
2550 | return log_oom(); | |
07719a21 | 2551 | |
d2e54fae | 2552 | r = mkdir_p_label(p, 0755); |
07719a21 | 2553 | if (r < 0) { |
7ad94c71 ZJS |
2554 | log_error("Failed to create generator directory %s: %s", |
2555 | p, strerror(-r)); | |
07719a21 LP |
2556 | free(p); |
2557 | return r; | |
2558 | } | |
2559 | } else { | |
b7def684 | 2560 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2561 | if (!p) |
2562 | return log_oom(); | |
07719a21 LP |
2563 | |
2564 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2565 | log_error("Failed to create generator directory %s: %m", |
2566 | p); | |
34bf0281 | 2567 | free(p); |
07719a21 LP |
2568 | return -errno; |
2569 | } | |
2570 | } | |
2571 | ||
2572 | *generator = p; | |
2573 | return 0; | |
2574 | } | |
2575 | ||
2576 | static void trim_generator_dir(Manager *m, char **generator) { | |
2577 | assert(m); | |
2578 | assert(generator); | |
2579 | ||
2580 | if (!*generator) | |
2581 | return; | |
2582 | ||
2583 | if (rmdir(*generator) >= 0) { | |
2584 | free(*generator); | |
2585 | *generator = NULL; | |
2586 | } | |
2587 | ||
2588 | return; | |
2589 | } | |
2590 | ||
5a1e9937 LP |
2591 | void manager_run_generators(Manager *m) { |
2592 | DIR *d = NULL; | |
5a1e9937 | 2593 | const char *generator_path; |
07719a21 | 2594 | const char *argv[5]; |
07719a21 | 2595 | int r; |
5a1e9937 LP |
2596 | |
2597 | assert(m); | |
2598 | ||
67445f4e | 2599 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2600 | d = opendir(generator_path); |
2601 | if (!d) { | |
5a1e9937 LP |
2602 | if (errno == ENOENT) |
2603 | return; | |
2604 | ||
7ad94c71 ZJS |
2605 | log_error("Failed to enumerate generator directory %s: %m", |
2606 | generator_path); | |
5a1e9937 LP |
2607 | return; |
2608 | } | |
2609 | ||
07719a21 LP |
2610 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2611 | if (r < 0) | |
2612 | goto finish; | |
f1d19aa4 | 2613 | |
07719a21 LP |
2614 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2615 | if (r < 0) | |
2616 | goto finish; | |
5a1e9937 | 2617 | |
07719a21 LP |
2618 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2619 | if (r < 0) | |
2620 | goto finish; | |
5a1e9937 | 2621 | |
83cc030f LP |
2622 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2623 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2624 | argv[2] = m->generator_unit_path_early; |
2625 | argv[3] = m->generator_unit_path_late; | |
2626 | argv[4] = NULL; | |
5a1e9937 | 2627 | |
5c0d398d LP |
2628 | RUN_WITH_UMASK(0022) { |
2629 | execute_directory(generator_path, d, (char**) argv); | |
2630 | } | |
5a1e9937 | 2631 | |
07719a21 LP |
2632 | trim_generator_dir(m, &m->generator_unit_path); |
2633 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2634 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2635 | |
2636 | finish: | |
2637 | if (d) | |
2638 | closedir(d); | |
5a1e9937 LP |
2639 | } |
2640 | ||
07719a21 | 2641 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2642 | assert(m); |
07719a21 | 2643 | assert(generator); |
5a1e9937 | 2644 | |
07719a21 | 2645 | if (!*generator) |
5a1e9937 LP |
2646 | return; |
2647 | ||
07719a21 LP |
2648 | strv_remove(m->lookup_paths.unit_path, *generator); |
2649 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2650 | |
07719a21 LP |
2651 | free(*generator); |
2652 | *generator = NULL; | |
2653 | } | |
2654 | ||
2655 | void manager_undo_generators(Manager *m) { | |
2656 | assert(m); | |
2657 | ||
2658 | remove_generator_dir(m, &m->generator_unit_path); | |
2659 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2660 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2661 | } |
2662 | ||
e21fea24 | 2663 | int manager_environment_add(Manager *m, char **environment) { |
97d0e5f8 UTL |
2664 | char **e = NULL; |
2665 | assert(m); | |
bcd8e6d1 | 2666 | |
97d0e5f8 UTL |
2667 | e = strv_env_merge(2, m->environment, environment); |
2668 | if (!e) | |
2669 | return -ENOMEM; | |
bcd8e6d1 | 2670 | |
97d0e5f8 UTL |
2671 | strv_free(m->environment); |
2672 | m->environment = e; | |
bcd8e6d1 | 2673 | |
97d0e5f8 UTL |
2674 | return 0; |
2675 | } | |
2676 | ||
c93ff2e9 FC |
2677 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2678 | int i; | |
2679 | ||
2680 | assert(m); | |
2681 | ||
2682 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2683 | if (!default_rlimit[i]) |
2684 | continue; | |
c93ff2e9 | 2685 | |
07719a21 LP |
2686 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2687 | if (!m->rlimit[i]) | |
2688 | return -ENOMEM; | |
c93ff2e9 FC |
2689 | } |
2690 | ||
2691 | return 0; | |
2692 | } | |
2693 | ||
4cfa2c99 | 2694 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2695 | Unit *u; |
2696 | ||
2697 | assert(m); | |
2698 | ||
67445f4e | 2699 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2700 | return; |
2701 | ||
731a676c LP |
2702 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2703 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2704 | log_close_journal(); |
731a676c | 2705 | return; |
f1dd0c3f LP |
2706 | } |
2707 | ||
731a676c LP |
2708 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2709 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2710 | log_close_journal(); |
731a676c LP |
2711 | return; |
2712 | } | |
f1dd0c3f | 2713 | |
731a676c LP |
2714 | /* Hmm, OK, so the socket is fully up and the service is up |
2715 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2716 | log_open(); |
2717 | } | |
2718 | ||
27d340c7 LP |
2719 | void manager_set_show_status(Manager *m, bool b) { |
2720 | assert(m); | |
2721 | ||
67445f4e | 2722 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2723 | return; |
2724 | ||
2725 | m->show_status = b; | |
2726 | ||
2727 | if (b) | |
2728 | touch("/run/systemd/show-status"); | |
2729 | else | |
2730 | unlink("/run/systemd/show-status"); | |
2731 | } | |
2732 | ||
6084e22e | 2733 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2734 | assert(m); |
2735 | ||
67445f4e | 2736 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2737 | return false; |
2738 | ||
31a7eb86 ZJS |
2739 | if (m->no_console_output) |
2740 | return false; | |
2741 | ||
27d340c7 LP |
2742 | if (m->show_status) |
2743 | return true; | |
2744 | ||
2745 | /* If Plymouth is running make sure we show the status, so | |
2746 | * that there's something nice to see when people press Esc */ | |
2747 | ||
2748 | return plymouth_running(); | |
2749 | } | |
68b29a9f | 2750 | |
984a2be4 | 2751 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2752 | va_list ap; |
2753 | ||
2754 | if (!manager_get_show_status(m)) | |
2755 | return; | |
2756 | ||
03b717a3 MS |
2757 | /* XXX We should totally drop the check for ephemeral here |
2758 | * and thus effectively make 'Type=idle' pointless. */ | |
2759 | if (ephemeral && m->n_on_console > 0) | |
2760 | return; | |
2761 | ||
25cee550 MS |
2762 | if (!manager_is_booting_or_shutting_down(m)) |
2763 | return; | |
2764 | ||
2765 | va_start(ap, format); | |
984a2be4 | 2766 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2767 | va_end(ap); |
2768 | } | |
2769 | ||
a57f7e2c LP |
2770 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2771 | _cleanup_free_ char *p = NULL; | |
2772 | Unit *found; | |
2773 | ||
2774 | assert(m); | |
2775 | assert(path); | |
2776 | assert(suffix); | |
2777 | assert(_found); | |
2778 | ||
2779 | p = unit_name_from_path(path, suffix); | |
2780 | if (!p) | |
2781 | return -ENOMEM; | |
2782 | ||
2783 | found = manager_get_unit(m, p); | |
2784 | if (!found) { | |
2785 | *_found = NULL; | |
2786 | return 0; | |
2787 | } | |
2788 | ||
2789 | *_found = found; | |
2790 | return 1; | |
2791 | } | |
2792 | ||
2793 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2794 | char p[strlen(path)+1]; | |
2795 | ||
2796 | assert(m); | |
2797 | assert(path); | |
2798 | ||
2799 | strcpy(p, path); | |
2800 | path_kill_slashes(p); | |
2801 | ||
2802 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2803 | } | |
2804 | ||
68b29a9f LP |
2805 | void watch_init(Watch *w) { |
2806 | assert(w); | |
2807 | ||
2808 | w->type = WATCH_INVALID; | |
2809 | w->fd = -1; | |
2810 | } |