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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" |
8e274523 LP |
58 | #include "cgroup.h" |
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" |
2e3d0692 | 73 | #include "efivars.h" |
8b55b8c4 | 74 | #include "env-util.h" |
60918275 | 75 | |
701cc384 LP |
76 | /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ |
77 | #define GC_QUEUE_ENTRIES_MAX 16 | |
78 | ||
79 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ | |
94b6dfa2 | 80 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 81 | |
03b717a3 MS |
82 | /* Initial delay and the interval for printing status messages about running jobs */ |
83 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
84 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
86 | ||
8c47c732 | 87 | /* Where clients shall send notification messages to */ |
29252e9e | 88 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 89 | |
c3e31c7b ZJS |
90 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
91 | ||
8c47c732 LP |
92 | static int manager_setup_notify(Manager *m) { |
93 | union { | |
94 | struct sockaddr sa; | |
95 | struct sockaddr_un un; | |
96 | } sa; | |
97 | struct epoll_event ev; | |
29252e9e | 98 | int one = 1; |
8c47c732 LP |
99 | |
100 | assert(m); | |
101 | ||
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 | ||
109 | zero(sa); | |
110 | sa.sa.sa_family = AF_UNIX; | |
111 | ||
31f92a7d | 112 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
113 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
114 | else | |
115 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
8c47c732 | 116 | |
29252e9e | 117 | sa.un.sun_path[0] = 0; |
1d6702e8 | 118 | |
29252e9e | 119 | if (bind(m->notify_watch.fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
8c47c732 LP |
120 | log_error("bind() failed: %m"); |
121 | return -errno; | |
122 | } | |
123 | ||
124 | if (setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) { | |
125 | log_error("SO_PASSCRED failed: %m"); | |
126 | return -errno; | |
127 | } | |
128 | ||
129 | zero(ev); | |
130 | ev.events = EPOLLIN; | |
131 | ev.data.ptr = &m->notify_watch; | |
132 | ||
8742514c | 133 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev) < 0) { |
28137202 | 134 | log_error("Failed to add notification socket fd to epoll: %m"); |
8c47c732 | 135 | return -errno; |
8742514c | 136 | } |
8c47c732 | 137 | |
29252e9e LP |
138 | sa.un.sun_path[0] = '@'; |
139 | m->notify_socket = strdup(sa.un.sun_path); | |
140 | if (!m->notify_socket) | |
8742514c | 141 | return log_oom(); |
8c47c732 | 142 | |
b2bb3dbe LP |
143 | log_debug("Using notification socket %s", m->notify_socket); |
144 | ||
8c47c732 LP |
145 | return 0; |
146 | } | |
147 | ||
03b717a3 MS |
148 | static int manager_jobs_in_progress_mod_timer(Manager *m) { |
149 | struct itimerspec its; | |
150 | ||
151 | zero(its); | |
152 | ||
153 | its.it_value.tv_sec = JOBS_IN_PROGRESS_WAIT_SEC; | |
154 | its.it_interval.tv_sec = JOBS_IN_PROGRESS_PERIOD_SEC; | |
155 | ||
156 | if (timerfd_settime(m->jobs_in_progress_watch.fd, 0, &its, NULL) < 0) | |
157 | return -errno; | |
158 | ||
159 | return 0; | |
160 | } | |
161 | ||
162 | static int manager_watch_jobs_in_progress(Manager *m) { | |
163 | struct epoll_event ev; | |
164 | int r; | |
165 | ||
166 | assert(m); | |
167 | ||
168 | if (m->jobs_in_progress_watch.type != WATCH_INVALID) | |
169 | return 0; | |
170 | ||
171 | m->jobs_in_progress_watch.type = WATCH_JOBS_IN_PROGRESS; | |
172 | m->jobs_in_progress_watch.fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC); | |
173 | if (m->jobs_in_progress_watch.fd < 0) { | |
174 | log_error("Failed to create timerfd: %m"); | |
175 | r = -errno; | |
176 | goto err; | |
177 | } | |
178 | ||
179 | r = manager_jobs_in_progress_mod_timer(m); | |
180 | if (r < 0) { | |
181 | log_error("Failed to set up timer for jobs progress watch: %s", strerror(-r)); | |
182 | goto err; | |
183 | } | |
184 | ||
185 | zero(ev); | |
186 | ev.events = EPOLLIN; | |
187 | ev.data.ptr = &m->jobs_in_progress_watch; | |
188 | ||
189 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->jobs_in_progress_watch.fd, &ev) < 0) { | |
190 | log_error("Failed to add jobs progress timer fd to epoll: %m"); | |
191 | r = -errno; | |
192 | goto err; | |
193 | } | |
194 | ||
195 | log_debug("Set up jobs progress timerfd."); | |
196 | ||
197 | return 0; | |
198 | ||
199 | err: | |
200 | if (m->jobs_in_progress_watch.fd >= 0) | |
201 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
202 | watch_init(&m->jobs_in_progress_watch); | |
203 | return r; | |
204 | } | |
205 | ||
206 | static void manager_unwatch_jobs_in_progress(Manager *m) { | |
207 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) | |
208 | return; | |
209 | ||
210 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->jobs_in_progress_watch.fd, NULL) >= 0); | |
211 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
212 | watch_init(&m->jobs_in_progress_watch); | |
213 | m->jobs_in_progress_iteration = 0; | |
214 | ||
215 | log_debug("Closed jobs progress timerfd."); | |
216 | } | |
217 | ||
218 | #define CYLON_BUFFER_EXTRA (2*strlen(ANSI_RED_ON) + strlen(ANSI_HIGHLIGHT_RED_ON) + 2*strlen(ANSI_HIGHLIGHT_OFF)) | |
219 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { | |
220 | char *p = buffer; | |
221 | ||
222 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
223 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
224 | ||
225 | if (pos > 1) { | |
226 | if (pos > 2) { | |
227 | memset(p, ' ', pos-2); | |
228 | p += pos-2; | |
229 | } | |
230 | memcpy(p, ANSI_RED_ON, strlen(ANSI_RED_ON)); | |
231 | p += strlen(ANSI_RED_ON); | |
232 | *p++ = '*'; | |
233 | } | |
234 | ||
235 | if (pos > 0 && pos <= width) { | |
236 | memcpy(p, ANSI_HIGHLIGHT_RED_ON, strlen(ANSI_HIGHLIGHT_RED_ON)); | |
237 | p += strlen(ANSI_HIGHLIGHT_RED_ON); | |
238 | *p++ = '*'; | |
239 | } | |
240 | ||
241 | memcpy(p, ANSI_HIGHLIGHT_OFF, strlen(ANSI_HIGHLIGHT_OFF)); | |
242 | p += strlen(ANSI_HIGHLIGHT_OFF); | |
243 | ||
244 | if (pos < width) { | |
245 | memcpy(p, ANSI_RED_ON, strlen(ANSI_RED_ON)); | |
246 | p += strlen(ANSI_RED_ON); | |
247 | *p++ = '*'; | |
248 | if (pos < width-1) { | |
249 | memset(p, ' ', width-1-pos); | |
250 | p += width-1-pos; | |
251 | } | |
252 | memcpy(p, ANSI_HIGHLIGHT_OFF, strlen(ANSI_HIGHLIGHT_OFF)); | |
253 | p += strlen(ANSI_HIGHLIGHT_OFF); | |
254 | } | |
255 | *p = 0; | |
256 | } | |
257 | ||
258 | static void manager_print_jobs_in_progress(Manager *m) { | |
259 | Iterator i; | |
260 | Job *j; | |
261 | char *job_of_n = NULL; | |
262 | unsigned counter = 0, print_nr; | |
263 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
264 | unsigned cylon_pos; | |
265 | ||
266 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
267 | ||
268 | HASHMAP_FOREACH(j, m->jobs, i) | |
269 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
270 | break; | |
271 | ||
e970a72e MS |
272 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
273 | * so the above loop must have succeeded in finding j. */ | |
274 | assert(counter == print_nr + 1); | |
5a82a91a | 275 | |
03b717a3 MS |
276 | cylon_pos = m->jobs_in_progress_iteration % 14; |
277 | if (cylon_pos >= 8) | |
278 | cylon_pos = 14 - cylon_pos; | |
279 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
280 | ||
281 | if (m->n_running_jobs > 1) | |
282 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
283 | job_of_n = NULL; | |
284 | ||
285 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
286 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
287 | free(job_of_n); | |
288 | ||
289 | m->jobs_in_progress_iteration++; | |
290 | } | |
291 | ||
8742514c LP |
292 | static int manager_setup_time_change(Manager *m) { |
293 | struct epoll_event ev; | |
294 | struct itimerspec its; | |
295 | ||
296 | assert(m); | |
297 | assert(m->time_change_watch.type == WATCH_INVALID); | |
298 | ||
299 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
300 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
301 | ||
302 | m->time_change_watch.type = WATCH_TIME_CHANGE; | |
303 | m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
304 | if (m->time_change_watch.fd < 0) { | |
305 | log_error("Failed to create timerfd: %m"); | |
306 | return -errno; | |
307 | } | |
308 | ||
309 | zero(its); | |
8a3a1704 LP |
310 | |
311 | /* We only care for the cancellation event, hence we set the | |
312 | * timeout to the latest possible value. */ | |
d6a195a3 ZJS |
313 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); |
314 | its.it_value.tv_sec = TIME_T_MAX; | |
8a3a1704 | 315 | |
8742514c LP |
316 | if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
317 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); | |
318 | close_nointr_nofail(m->time_change_watch.fd); | |
319 | watch_init(&m->time_change_watch); | |
320 | return 0; | |
321 | } | |
322 | ||
323 | zero(ev); | |
324 | ev.events = EPOLLIN; | |
325 | ev.data.ptr = &m->time_change_watch; | |
326 | ||
327 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) { | |
328 | log_error("Failed to add timer change fd to epoll: %m"); | |
329 | return -errno; | |
330 | } | |
331 | ||
332 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
80876c20 | 337 | static int enable_special_signals(Manager *m) { |
4466ee6a | 338 | int fd; |
80876c20 LP |
339 | |
340 | assert(m); | |
341 | ||
a41b539e | 342 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
343 | * this will fail with EPERM (older) or EINVAL (newer), so |
344 | * ignore that. */ | |
345 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
346 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
347 | ||
a41b539e LP |
348 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
349 | if (fd < 0) { | |
350 | /* Support systems without virtual console */ | |
351 | if (fd != -ENOENT) | |
352 | log_warning("Failed to open /dev/tty0: %m"); | |
353 | } else { | |
80876c20 LP |
354 | /* Enable that we get SIGWINCH on kbrequest */ |
355 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
356 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
357 | ||
358 | close_nointr_nofail(fd); | |
359 | } | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
ce578209 | 364 | static int manager_setup_signals(Manager *m) { |
9152c765 LP |
365 | sigset_t mask; |
366 | struct epoll_event ev; | |
57c0c30e | 367 | struct sigaction sa; |
60918275 | 368 | |
ce578209 LP |
369 | assert(m); |
370 | ||
57c0c30e LP |
371 | /* We are not interested in SIGSTOP and friends. */ |
372 | zero(sa); | |
373 | sa.sa_handler = SIG_DFL; | |
374 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
375 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
376 | ||
ce578209 | 377 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
378 | |
379 | sigset_add_many(&mask, | |
380 | SIGCHLD, /* Child died */ | |
381 | SIGTERM, /* Reexecute daemon */ | |
382 | SIGHUP, /* Reload configuration */ | |
383 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
384 | SIGUSR2, /* systemd: dump status */ | |
385 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
386 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
387 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
388 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 389 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
390 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
391 | SIGRTMIN+3, /* systemd: start halt.target */ | |
392 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
393 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
394 | SIGRTMIN+6, /* systemd: start kexec.target */ |
395 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
396 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
397 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
398 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
399 | SIGRTMIN+20, /* systemd: enable status messages */ |
400 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
401 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
402 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 403 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 404 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
405 | SIGRTMIN+27, /* systemd: set log target to console */ |
406 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
407 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 408 | -1); |
ce578209 LP |
409 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
410 | ||
ef734fd6 | 411 | m->signal_watch.type = WATCH_SIGNAL; |
8742514c LP |
412 | m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
413 | if (m->signal_watch.fd < 0) | |
ce578209 LP |
414 | return -errno; |
415 | ||
416 | zero(ev); | |
417 | ev.events = EPOLLIN; | |
418 | ev.data.ptr = &m->signal_watch; | |
419 | ||
420 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) | |
421 | return -errno; | |
422 | ||
67445f4e | 423 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 424 | return enable_special_signals(m); |
e1414003 | 425 | |
ce578209 LP |
426 | return 0; |
427 | } | |
428 | ||
71ecc858 LP |
429 | static void manager_strip_environment(Manager *m) { |
430 | assert(m); | |
431 | ||
432 | /* Remove variables from the inherited set that are part of | |
433 | * the container interface: | |
434 | * http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface */ | |
435 | strv_remove_prefix(m->environment, "container="); | |
436 | strv_remove_prefix(m->environment, "container_"); | |
437 | ||
438 | /* Remove variables from the inherited set that are part of | |
439 | * the initrd interface: | |
440 | * http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface */ | |
441 | strv_remove_prefix(m->environment, "RD_"); | |
8b55b8c4 LP |
442 | |
443 | /* Drop invalid entries */ | |
444 | strv_env_clean(m->environment); | |
71ecc858 LP |
445 | } |
446 | ||
67445f4e | 447 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 448 | Manager *m; |
8e274523 LP |
449 | int r = -ENOMEM; |
450 | ||
451 | assert(_m); | |
a5dab5ce | 452 | assert(running_as >= 0); |
67445f4e | 453 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 454 | |
915b3753 LP |
455 | m = new0(Manager, 1); |
456 | if (!m) | |
8e274523 | 457 | return -ENOMEM; |
60918275 | 458 | |
915b3753 | 459 | dual_timestamp_get(&m->userspace_timestamp); |
cae0c5e0 | 460 | dual_timestamp_from_monotonic(&m->kernel_timestamp, 0); |
b872e9a0 | 461 | #ifdef ENABLE_EFI |
2e3d0692 | 462 | efi_get_boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
b872e9a0 | 463 | #endif |
e537352b | 464 | |
a5dab5ce | 465 | m->running_as = running_as; |
cbd37330 | 466 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 467 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 468 | m->pin_cgroupfs_fd = -1; |
f2b68789 | 469 | m->idle_pipe[0] = m->idle_pipe[1] = -1; |
80876c20 | 470 | |
8742514c LP |
471 | watch_init(&m->signal_watch); |
472 | watch_init(&m->mount_watch); | |
473 | watch_init(&m->swap_watch); | |
474 | watch_init(&m->udev_watch); | |
475 | watch_init(&m->time_change_watch); | |
03b717a3 | 476 | watch_init(&m->jobs_in_progress_watch); |
8742514c LP |
477 | |
478 | m->epoll_fd = m->dev_autofs_fd = -1; | |
ea430986 | 479 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 480 | |
71ecc858 LP |
481 | m->environment = strv_copy(environ); |
482 | if (!m->environment) | |
1137a57c LP |
483 | goto fail; |
484 | ||
71ecc858 LP |
485 | manager_strip_environment(m); |
486 | ||
67445f4e | 487 | if (running_as == SYSTEMD_SYSTEM) { |
88f06645 LP |
488 | m->default_controllers = strv_new("cpu", NULL); |
489 | if (!m->default_controllers) | |
490 | goto fail; | |
491 | } | |
06d4c99a | 492 | |
87f0e418 | 493 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
494 | goto fail; |
495 | ||
496 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
497 | goto fail; | |
498 | ||
9152c765 LP |
499 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
500 | goto fail; | |
501 | ||
8e274523 LP |
502 | if (!(m->cgroup_bondings = hashmap_new(string_hash_func, string_compare_func))) |
503 | goto fail; | |
504 | ||
05e343b7 LP |
505 | if (!(m->watch_bus = hashmap_new(string_hash_func, string_compare_func))) |
506 | goto fail; | |
507 | ||
8742514c LP |
508 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
509 | if (m->epoll_fd < 0) | |
510 | goto fail; | |
511 | ||
512 | r = manager_setup_signals(m); | |
513 | if (r < 0) | |
9152c765 LP |
514 | goto fail; |
515 | ||
8742514c LP |
516 | r = manager_setup_cgroup(m); |
517 | if (r < 0) | |
8e274523 LP |
518 | goto fail; |
519 | ||
8742514c LP |
520 | r = manager_setup_notify(m); |
521 | if (r < 0) | |
9152c765 LP |
522 | goto fail; |
523 | ||
8742514c LP |
524 | r = manager_setup_time_change(m); |
525 | if (r < 0) | |
8c47c732 LP |
526 | goto fail; |
527 | ||
f278026d | 528 | /* Try to connect to the busses, if possible. */ |
8742514c LP |
529 | r = bus_init(m, running_as != SYSTEMD_SYSTEM); |
530 | if (r < 0) | |
ea430986 LP |
531 | goto fail; |
532 | ||
72bc8d00 LP |
533 | m->taint_usr = dir_is_empty("/usr") > 0; |
534 | ||
8e274523 LP |
535 | *_m = m; |
536 | return 0; | |
60918275 LP |
537 | |
538 | fail: | |
539 | manager_free(m); | |
8e274523 | 540 | return r; |
60918275 LP |
541 | } |
542 | ||
23a177ef | 543 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 544 | Unit *u; |
23a177ef LP |
545 | unsigned n = 0; |
546 | ||
547 | assert(m); | |
548 | ||
595ed347 MS |
549 | while ((u = m->cleanup_queue)) { |
550 | assert(u->in_cleanup_queue); | |
23a177ef | 551 | |
595ed347 | 552 | unit_free(u); |
23a177ef LP |
553 | n++; |
554 | } | |
555 | ||
556 | return n; | |
557 | } | |
558 | ||
eced69b3 | 559 | enum { |
35b8ca3a | 560 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
561 | GC_OFFSET_UNSURE, /* No clue */ |
562 | GC_OFFSET_GOOD, /* We still need this unit */ | |
563 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
564 | _GC_OFFSET_MAX | |
565 | }; | |
566 | ||
567 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
568 | Iterator i; |
569 | Unit *other; | |
eced69b3 | 570 | bool is_bad; |
701cc384 LP |
571 | |
572 | assert(u); | |
573 | ||
ac155bb8 MS |
574 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
575 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
576 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
577 | return; |
578 | ||
ac155bb8 | 579 | if (u->in_cleanup_queue) |
701cc384 LP |
580 | goto bad; |
581 | ||
582 | if (unit_check_gc(u)) | |
583 | goto good; | |
584 | ||
ac155bb8 | 585 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
586 | |
587 | is_bad = true; | |
588 | ||
ac155bb8 | 589 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
590 | unit_gc_sweep(other, gc_marker); |
591 | ||
ac155bb8 | 592 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 593 | goto good; |
eced69b3 | 594 | |
ac155bb8 | 595 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 596 | is_bad = false; |
701cc384 LP |
597 | } |
598 | ||
eced69b3 LP |
599 | if (is_bad) |
600 | goto bad; | |
601 | ||
602 | /* We were unable to find anything out about this entry, so | |
603 | * let's investigate it later */ | |
ac155bb8 | 604 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
605 | unit_add_to_gc_queue(u); |
606 | return; | |
607 | ||
701cc384 | 608 | bad: |
eced69b3 LP |
609 | /* We definitely know that this one is not useful anymore, so |
610 | * let's mark it for deletion */ | |
ac155bb8 | 611 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 612 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
613 | return; |
614 | ||
615 | good: | |
ac155bb8 | 616 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
617 | } |
618 | ||
619 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 620 | Unit *u; |
701cc384 | 621 | unsigned n = 0; |
eced69b3 | 622 | unsigned gc_marker; |
701cc384 LP |
623 | |
624 | assert(m); | |
625 | ||
626 | if ((m->n_in_gc_queue < GC_QUEUE_ENTRIES_MAX) && | |
627 | (m->gc_queue_timestamp <= 0 || | |
628 | (m->gc_queue_timestamp + GC_QUEUE_USEC_MAX) > now(CLOCK_MONOTONIC))) | |
629 | return 0; | |
630 | ||
631 | log_debug("Running GC..."); | |
632 | ||
eced69b3 LP |
633 | m->gc_marker += _GC_OFFSET_MAX; |
634 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 635 | m->gc_marker = 1; |
701cc384 | 636 | |
eced69b3 LP |
637 | gc_marker = m->gc_marker; |
638 | ||
595ed347 MS |
639 | while ((u = m->gc_queue)) { |
640 | assert(u->in_gc_queue); | |
701cc384 | 641 | |
595ed347 | 642 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 643 | |
595ed347 MS |
644 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
645 | u->in_gc_queue = false; | |
701cc384 LP |
646 | |
647 | n++; | |
648 | ||
595ed347 MS |
649 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
650 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 651 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
652 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
653 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
654 | } |
655 | } | |
656 | ||
657 | m->n_in_gc_queue = 0; | |
658 | m->gc_queue_timestamp = 0; | |
659 | ||
660 | return n; | |
661 | } | |
662 | ||
a16e1123 | 663 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 664 | Unit *u; |
60918275 LP |
665 | |
666 | assert(m); | |
667 | ||
87f0e418 LP |
668 | while ((u = hashmap_first(m->units))) |
669 | unit_free(u); | |
964e0949 LP |
670 | |
671 | manager_dispatch_cleanup_queue(m); | |
672 | ||
673 | assert(!m->load_queue); | |
674 | assert(!m->run_queue); | |
675 | assert(!m->dbus_unit_queue); | |
676 | assert(!m->dbus_job_queue); | |
677 | assert(!m->cleanup_queue); | |
678 | assert(!m->gc_queue); | |
679 | ||
964e0949 LP |
680 | assert(hashmap_isempty(m->jobs)); |
681 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
682 | |
683 | m->n_on_console = 0; | |
684 | m->n_running_jobs = 0; | |
a16e1123 LP |
685 | } |
686 | ||
687 | void manager_free(Manager *m) { | |
688 | UnitType c; | |
c93ff2e9 | 689 | int i; |
87f0e418 | 690 | |
a16e1123 LP |
691 | assert(m); |
692 | ||
693 | manager_clear_jobs_and_units(m); | |
23a177ef | 694 | |
7824bbeb LP |
695 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
696 | if (unit_vtable[c]->shutdown) | |
697 | unit_vtable[c]->shutdown(m); | |
698 | ||
a16e1123 LP |
699 | /* If we reexecute ourselves, we keep the root cgroup |
700 | * around */ | |
c6c18be3 | 701 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 702 | |
5a1e9937 LP |
703 | manager_undo_generators(m); |
704 | ||
5e8d1c9a | 705 | bus_done(m); |
ea430986 | 706 | |
87f0e418 | 707 | hashmap_free(m->units); |
60918275 | 708 | hashmap_free(m->jobs); |
9152c765 | 709 | hashmap_free(m->watch_pids); |
05e343b7 | 710 | hashmap_free(m->watch_bus); |
9152c765 LP |
711 | |
712 | if (m->epoll_fd >= 0) | |
a16e1123 | 713 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 714 | if (m->signal_watch.fd >= 0) |
a16e1123 | 715 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
716 | if (m->notify_watch.fd >= 0) |
717 | close_nointr_nofail(m->notify_watch.fd); | |
8742514c LP |
718 | if (m->time_change_watch.fd >= 0) |
719 | close_nointr_nofail(m->time_change_watch.fd); | |
03b717a3 MS |
720 | if (m->jobs_in_progress_watch.fd >= 0) |
721 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
60918275 | 722 | |
c952c6ec LP |
723 | free(m->notify_socket); |
724 | ||
84e3543e | 725 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 726 | strv_free(m->environment); |
036643a2 | 727 | |
06d4c99a LP |
728 | strv_free(m->default_controllers); |
729 | ||
8e274523 | 730 | hashmap_free(m->cgroup_bondings); |
c6c18be3 | 731 | set_free_free(m->unit_path_cache); |
33be102a | 732 | |
f2b68789 LP |
733 | close_pipe(m->idle_pipe); |
734 | ||
664f88a7 LP |
735 | free(m->switch_root); |
736 | free(m->switch_root_init); | |
737 | ||
c93ff2e9 FC |
738 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
739 | free(m->rlimit[i]); | |
740 | ||
60918275 LP |
741 | free(m); |
742 | } | |
743 | ||
a16e1123 LP |
744 | int manager_enumerate(Manager *m) { |
745 | int r = 0, q; | |
f50e0a01 | 746 | UnitType c; |
f50e0a01 LP |
747 | |
748 | assert(m); | |
749 | ||
a16e1123 LP |
750 | /* Let's ask every type to load all units from disk/kernel |
751 | * that it might know */ | |
f50e0a01 LP |
752 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
753 | if (unit_vtable[c]->enumerate) | |
a16e1123 LP |
754 | if ((q = unit_vtable[c]->enumerate(m)) < 0) |
755 | r = q; | |
f50e0a01 LP |
756 | |
757 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
758 | return r; |
759 | } | |
760 | ||
761 | int manager_coldplug(Manager *m) { | |
762 | int r = 0, q; | |
763 | Iterator i; | |
764 | Unit *u; | |
765 | char *k; | |
766 | ||
767 | assert(m); | |
f50e0a01 LP |
768 | |
769 | /* Then, let's set up their initial state. */ | |
770 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
771 | ||
772 | /* ignore aliases */ | |
ac155bb8 | 773 | if (u->id != k) |
f50e0a01 LP |
774 | continue; |
775 | ||
cca098b0 LP |
776 | if ((q = unit_coldplug(u)) < 0) |
777 | r = q; | |
f50e0a01 LP |
778 | } |
779 | ||
a16e1123 LP |
780 | return r; |
781 | } | |
782 | ||
fe51822e LP |
783 | static void manager_build_unit_path_cache(Manager *m) { |
784 | char **i; | |
874310b7 | 785 | DIR _cleanup_free_ *d = NULL; |
fe51822e LP |
786 | int r; |
787 | ||
788 | assert(m); | |
789 | ||
790 | set_free_free(m->unit_path_cache); | |
791 | ||
874310b7 ZJS |
792 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
793 | if (!m->unit_path_cache) { | |
fe51822e LP |
794 | log_error("Failed to allocate unit path cache."); |
795 | return; | |
796 | } | |
797 | ||
798 | /* This simply builds a list of files we know exist, so that | |
799 | * we don't always have to go to disk */ | |
800 | ||
801 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
802 | struct dirent *de; | |
803 | ||
bd0af849 ZJS |
804 | d = opendir(*i); |
805 | if (!d) { | |
874310b7 ZJS |
806 | if (errno != ENOENT) |
807 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
808 | continue; |
809 | } | |
810 | ||
811 | while ((de = readdir(d))) { | |
812 | char *p; | |
813 | ||
814 | if (ignore_file(de->d_name)) | |
815 | continue; | |
816 | ||
b7def684 | 817 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 818 | if (!p) { |
fe51822e LP |
819 | r = -ENOMEM; |
820 | goto fail; | |
821 | } | |
822 | ||
874310b7 ZJS |
823 | r = set_put(m->unit_path_cache, p); |
824 | if (r < 0) { | |
fe51822e LP |
825 | free(p); |
826 | goto fail; | |
827 | } | |
828 | } | |
829 | ||
830 | closedir(d); | |
831 | d = NULL; | |
832 | } | |
833 | ||
834 | return; | |
835 | ||
836 | fail: | |
837 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
838 | ||
839 | set_free_free(m->unit_path_cache); | |
840 | m->unit_path_cache = NULL; | |
fe51822e LP |
841 | } |
842 | ||
a16e1123 LP |
843 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
844 | int r, q; | |
845 | ||
846 | assert(m); | |
847 | ||
5a1e9937 LP |
848 | manager_run_generators(m); |
849 | ||
07719a21 LP |
850 | r = lookup_paths_init( |
851 | &m->lookup_paths, m->running_as, true, | |
852 | m->generator_unit_path, | |
853 | m->generator_unit_path_early, | |
854 | m->generator_unit_path_late); | |
855 | if (r < 0) | |
856 | return r; | |
857 | ||
fe51822e LP |
858 | manager_build_unit_path_cache(m); |
859 | ||
9f611ad8 LP |
860 | /* If we will deserialize make sure that during enumeration |
861 | * this is already known, so we increase the counter here | |
862 | * already */ | |
863 | if (serialization) | |
a7556052 | 864 | m->n_reloading ++; |
9f611ad8 | 865 | |
a16e1123 LP |
866 | /* First, enumerate what we can from all config files */ |
867 | r = manager_enumerate(m); | |
868 | ||
869 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
870 | if (serialization) { |
871 | q = manager_deserialize(m, serialization, fds); | |
872 | if (q < 0) | |
a16e1123 | 873 | r = q; |
07719a21 | 874 | } |
a16e1123 | 875 | |
01e10de3 LP |
876 | /* Any fds left? Find some unit which wants them. This is |
877 | * useful to allow container managers to pass some file | |
878 | * descriptors to us pre-initialized. This enables | |
879 | * socket-based activation of entire containers. */ | |
880 | if (fdset_size(fds) > 0) { | |
881 | q = manager_distribute_fds(m, fds); | |
882 | if (q < 0) | |
883 | r = q; | |
884 | } | |
885 | ||
a16e1123 | 886 | /* Third, fire things up! */ |
07719a21 LP |
887 | q = manager_coldplug(m); |
888 | if (q < 0) | |
a16e1123 LP |
889 | r = q; |
890 | ||
9f611ad8 | 891 | if (serialization) { |
a7556052 LP |
892 | assert(m->n_reloading > 0); |
893 | m->n_reloading --; | |
9f611ad8 LP |
894 | } |
895 | ||
a16e1123 | 896 | return r; |
f50e0a01 LP |
897 | } |
898 | ||
398ef8ba | 899 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 900 | int r; |
7527cb52 | 901 | Transaction *tr; |
e5b5ae50 LP |
902 | |
903 | assert(m); | |
904 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 905 | assert(unit); |
e5b5ae50 | 906 | assert(mode < _JOB_MODE_MAX); |
60918275 | 907 | |
398ef8ba LP |
908 | if (mode == JOB_ISOLATE && type != JOB_START) { |
909 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 910 | return -EINVAL; |
398ef8ba | 911 | } |
c497c7a9 | 912 | |
ac155bb8 | 913 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
914 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
915 | return -EPERM; | |
916 | } | |
917 | ||
66870f90 ZJS |
918 | log_debug_unit(unit->id, |
919 | "Trying to enqueue job %s/%s/%s", unit->id, | |
920 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 921 | |
e0209d83 MS |
922 | job_type_collapse(&type, unit); |
923 | ||
23ade460 | 924 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
925 | if (!tr) |
926 | return -ENOMEM; | |
11dd41ce | 927 | |
7527cb52 MS |
928 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
929 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 930 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
931 | if (r < 0) |
932 | goto tr_abort; | |
c497c7a9 | 933 | |
7527cb52 MS |
934 | if (mode == JOB_ISOLATE) { |
935 | r = transaction_add_isolate_jobs(tr, m); | |
936 | if (r < 0) | |
937 | goto tr_abort; | |
938 | } | |
939 | ||
940 | r = transaction_activate(tr, m, mode, e); | |
941 | if (r < 0) | |
942 | goto tr_abort; | |
e5b5ae50 | 943 | |
66870f90 ZJS |
944 | log_debug_unit(unit->id, |
945 | "Enqueued job %s/%s as %u", unit->id, | |
946 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 947 | |
e5b5ae50 | 948 | if (_ret) |
b94fbd30 | 949 | *_ret = tr->anchor_job; |
60918275 | 950 | |
7527cb52 | 951 | transaction_free(tr); |
e5b5ae50 | 952 | return 0; |
7527cb52 MS |
953 | |
954 | tr_abort: | |
955 | transaction_abort(tr); | |
956 | transaction_free(tr); | |
957 | return r; | |
e5b5ae50 | 958 | } |
60918275 | 959 | |
398ef8ba | 960 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
961 | Unit *unit; |
962 | int r; | |
963 | ||
964 | assert(m); | |
965 | assert(type < _JOB_TYPE_MAX); | |
966 | assert(name); | |
967 | assert(mode < _JOB_MODE_MAX); | |
968 | ||
c3090674 LP |
969 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
970 | if (r < 0) | |
28247076 LP |
971 | return r; |
972 | ||
398ef8ba | 973 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
974 | } |
975 | ||
60918275 LP |
976 | Job *manager_get_job(Manager *m, uint32_t id) { |
977 | assert(m); | |
978 | ||
979 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
980 | } | |
981 | ||
87f0e418 | 982 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
983 | assert(m); |
984 | assert(name); | |
985 | ||
87f0e418 | 986 | return hashmap_get(m->units, name); |
60918275 LP |
987 | } |
988 | ||
c1e1601e | 989 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 990 | Unit *u; |
c1e1601e | 991 | unsigned n = 0; |
60918275 LP |
992 | |
993 | assert(m); | |
994 | ||
223dabab LP |
995 | /* Make sure we are not run recursively */ |
996 | if (m->dispatching_load_queue) | |
c1e1601e | 997 | return 0; |
223dabab LP |
998 | |
999 | m->dispatching_load_queue = true; | |
1000 | ||
87f0e418 | 1001 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1002 | * tries to load its data until the queue is empty */ |
1003 | ||
595ed347 MS |
1004 | while ((u = m->load_queue)) { |
1005 | assert(u->in_load_queue); | |
034c6ed7 | 1006 | |
595ed347 | 1007 | unit_load(u); |
c1e1601e | 1008 | n++; |
60918275 LP |
1009 | } |
1010 | ||
223dabab | 1011 | m->dispatching_load_queue = false; |
c1e1601e | 1012 | return n; |
60918275 LP |
1013 | } |
1014 | ||
398ef8ba | 1015 | int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
87f0e418 | 1016 | Unit *ret; |
7d17cfbc | 1017 | UnitType t; |
60918275 LP |
1018 | int r; |
1019 | ||
1020 | assert(m); | |
9e2f7c11 | 1021 | assert(name || path); |
60918275 | 1022 | |
db06e3b6 LP |
1023 | /* This will prepare the unit for loading, but not actually |
1024 | * load anything from disk. */ | |
0301abf4 | 1025 | |
398ef8ba LP |
1026 | if (path && !is_path(path)) { |
1027 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 1028 | return -EINVAL; |
398ef8ba | 1029 | } |
9e2f7c11 LP |
1030 | |
1031 | if (!name) | |
9eb977db | 1032 | name = path_get_file_name(path); |
9e2f7c11 | 1033 | |
7d17cfbc MS |
1034 | t = unit_name_to_type(name); |
1035 | ||
5f739699 | 1036 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 1037 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 1038 | return -EINVAL; |
398ef8ba | 1039 | } |
60918275 | 1040 | |
7d17cfbc MS |
1041 | ret = manager_get_unit(m, name); |
1042 | if (ret) { | |
034c6ed7 | 1043 | *_ret = ret; |
413d6313 | 1044 | return 1; |
034c6ed7 | 1045 | } |
60918275 | 1046 | |
7d17cfbc MS |
1047 | ret = unit_new(m, unit_vtable[t]->object_size); |
1048 | if (!ret) | |
60918275 LP |
1049 | return -ENOMEM; |
1050 | ||
7d17cfbc | 1051 | if (path) { |
ac155bb8 MS |
1052 | ret->fragment_path = strdup(path); |
1053 | if (!ret->fragment_path) { | |
0301abf4 LP |
1054 | unit_free(ret); |
1055 | return -ENOMEM; | |
1056 | } | |
7d17cfbc | 1057 | } |
0301abf4 | 1058 | |
87f0e418 LP |
1059 | if ((r = unit_add_name(ret, name)) < 0) { |
1060 | unit_free(ret); | |
1ffba6fe | 1061 | return r; |
60918275 LP |
1062 | } |
1063 | ||
87f0e418 | 1064 | unit_add_to_load_queue(ret); |
c1e1601e | 1065 | unit_add_to_dbus_queue(ret); |
949061f0 | 1066 | unit_add_to_gc_queue(ret); |
c1e1601e | 1067 | |
db06e3b6 LP |
1068 | if (_ret) |
1069 | *_ret = ret; | |
1070 | ||
1071 | return 0; | |
1072 | } | |
1073 | ||
398ef8ba | 1074 | int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
db06e3b6 LP |
1075 | int r; |
1076 | ||
1077 | assert(m); | |
1078 | ||
1079 | /* This will load the service information files, but not actually | |
1080 | * start any services or anything. */ | |
1081 | ||
c3090674 LP |
1082 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1083 | if (r != 0) | |
db06e3b6 LP |
1084 | return r; |
1085 | ||
f50e0a01 | 1086 | manager_dispatch_load_queue(m); |
60918275 | 1087 | |
9e2f7c11 | 1088 | if (_ret) |
413d6313 | 1089 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1090 | |
60918275 LP |
1091 | return 0; |
1092 | } | |
a66d02c3 | 1093 | |
cea8e32e | 1094 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1095 | Iterator i; |
a66d02c3 LP |
1096 | Job *j; |
1097 | ||
1098 | assert(s); | |
1099 | assert(f); | |
1100 | ||
034c6ed7 | 1101 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1102 | job_dump(j, f, prefix); |
a66d02c3 LP |
1103 | } |
1104 | ||
87f0e418 | 1105 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1106 | Iterator i; |
87f0e418 | 1107 | Unit *u; |
11dd41ce | 1108 | const char *t; |
a66d02c3 LP |
1109 | |
1110 | assert(s); | |
1111 | assert(f); | |
1112 | ||
87f0e418 | 1113 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1114 | if (u->id == t) |
87f0e418 | 1115 | unit_dump(u, f, prefix); |
a66d02c3 | 1116 | } |
7fad411c LP |
1117 | |
1118 | void manager_clear_jobs(Manager *m) { | |
1119 | Job *j; | |
1120 | ||
1121 | assert(m); | |
1122 | ||
7fad411c | 1123 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1124 | /* No need to recurse. We're cancelling all jobs. */ |
1125 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1126 | } |
83c60c9f | 1127 | |
c1e1601e | 1128 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1129 | Job *j; |
c1e1601e | 1130 | unsigned n = 0; |
83c60c9f | 1131 | |
034c6ed7 | 1132 | if (m->dispatching_run_queue) |
c1e1601e | 1133 | return 0; |
034c6ed7 LP |
1134 | |
1135 | m->dispatching_run_queue = true; | |
9152c765 | 1136 | |
034c6ed7 | 1137 | while ((j = m->run_queue)) { |
ac1135be | 1138 | assert(j->installed); |
034c6ed7 LP |
1139 | assert(j->in_run_queue); |
1140 | ||
1141 | job_run_and_invalidate(j); | |
c1e1601e | 1142 | n++; |
9152c765 | 1143 | } |
034c6ed7 LP |
1144 | |
1145 | m->dispatching_run_queue = false; | |
03b717a3 MS |
1146 | |
1147 | if (hashmap_size(m->jobs) > 0) | |
1148 | manager_watch_jobs_in_progress(m); | |
1149 | ||
c1e1601e LP |
1150 | return n; |
1151 | } | |
1152 | ||
1153 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
1154 | Job *j; | |
595ed347 | 1155 | Unit *u; |
c1e1601e LP |
1156 | unsigned n = 0; |
1157 | ||
1158 | assert(m); | |
1159 | ||
1160 | if (m->dispatching_dbus_queue) | |
1161 | return 0; | |
1162 | ||
1163 | m->dispatching_dbus_queue = true; | |
1164 | ||
595ed347 MS |
1165 | while ((u = m->dbus_unit_queue)) { |
1166 | assert(u->in_dbus_queue); | |
c1e1601e | 1167 | |
595ed347 | 1168 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1169 | n++; |
1170 | } | |
1171 | ||
1172 | while ((j = m->dbus_job_queue)) { | |
1173 | assert(j->in_dbus_queue); | |
1174 | ||
1175 | bus_job_send_change_signal(j); | |
1176 | n++; | |
1177 | } | |
1178 | ||
1179 | m->dispatching_dbus_queue = false; | |
1180 | return n; | |
9152c765 LP |
1181 | } |
1182 | ||
8c47c732 LP |
1183 | static int manager_process_notify_fd(Manager *m) { |
1184 | ssize_t n; | |
1185 | ||
1186 | assert(m); | |
1187 | ||
1188 | for (;;) { | |
1189 | char buf[4096]; | |
1190 | struct msghdr msghdr; | |
1191 | struct iovec iovec; | |
1192 | struct ucred *ucred; | |
1193 | union { | |
1194 | struct cmsghdr cmsghdr; | |
1195 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
1196 | } control; | |
1197 | Unit *u; | |
1198 | char **tags; | |
1199 | ||
1200 | zero(iovec); | |
1201 | iovec.iov_base = buf; | |
1202 | iovec.iov_len = sizeof(buf)-1; | |
1203 | ||
1204 | zero(control); | |
1205 | zero(msghdr); | |
1206 | msghdr.msg_iov = &iovec; | |
1207 | msghdr.msg_iovlen = 1; | |
1208 | msghdr.msg_control = &control; | |
1209 | msghdr.msg_controllen = sizeof(control); | |
1210 | ||
bd0af849 ZJS |
1211 | n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT); |
1212 | if (n <= 0) { | |
8c47c732 LP |
1213 | if (n >= 0) |
1214 | return -EIO; | |
1215 | ||
f6144808 | 1216 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1217 | break; |
1218 | ||
1219 | return -errno; | |
1220 | } | |
1221 | ||
1222 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1223 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1224 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1225 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1226 | log_warning("Received notify message without credentials. Ignoring."); | |
1227 | continue; | |
1228 | } | |
1229 | ||
1230 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1231 | ||
bd0af849 ZJS |
1232 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1233 | if (!u) { | |
1234 | u = cgroup_unit_by_pid(m, ucred->pid); | |
1235 | if (!u) { | |
8c47c732 LP |
1236 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
1237 | continue; | |
1238 | } | |
bd0af849 | 1239 | } |
8c47c732 | 1240 | |
8c40acf7 LP |
1241 | assert((size_t) n < sizeof(buf)); |
1242 | buf[n] = 0; | |
bd0af849 ZJS |
1243 | tags = strv_split(buf, "\n\r"); |
1244 | if (!tags) | |
1245 | return log_oom(); | |
8c47c732 | 1246 | |
66870f90 | 1247 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1248 | |
1249 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1250 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1251 | |
1252 | strv_free(tags); | |
1253 | } | |
1254 | ||
1255 | return 0; | |
1256 | } | |
1257 | ||
034c6ed7 | 1258 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1259 | assert(m); |
1260 | ||
1261 | for (;;) { | |
1262 | siginfo_t si; | |
87f0e418 | 1263 | Unit *u; |
8c47c732 | 1264 | int r; |
9152c765 LP |
1265 | |
1266 | zero(si); | |
4112df16 LP |
1267 | |
1268 | /* First we call waitd() for a PID and do not reap the | |
1269 | * zombie. That way we can still access /proc/$PID for | |
1270 | * it while it is a zombie. */ | |
1271 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1272 | |
1273 | if (errno == ECHILD) | |
1274 | break; | |
1275 | ||
4112df16 LP |
1276 | if (errno == EINTR) |
1277 | continue; | |
1278 | ||
9152c765 | 1279 | return -errno; |
acbb0225 | 1280 | } |
9152c765 | 1281 | |
4112df16 | 1282 | if (si.si_pid <= 0) |
9152c765 LP |
1283 | break; |
1284 | ||
15d5d9d9 | 1285 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
bd0af849 | 1286 | char _cleanup_free_ *name = NULL; |
4112df16 | 1287 | |
87d2c1ff | 1288 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1289 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1290 | } |
1291 | ||
8c47c732 LP |
1292 | /* Let's flush any message the dying child might still |
1293 | * have queued for us. This ensures that the process | |
1294 | * still exists in /proc so that we can figure out | |
1295 | * which cgroup and hence unit it belongs to. */ | |
bd0af849 ZJS |
1296 | r = manager_process_notify_fd(m); |
1297 | if (r < 0) | |
8c47c732 LP |
1298 | return r; |
1299 | ||
1300 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1301 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1302 | if (!u) | |
8c47c732 LP |
1303 | u = cgroup_unit_by_pid(m, si.si_pid); |
1304 | ||
4112df16 LP |
1305 | /* And now, we actually reap the zombie. */ |
1306 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1307 | if (errno == EINTR) | |
1308 | continue; | |
1309 | ||
1310 | return -errno; | |
1311 | } | |
1312 | ||
034c6ed7 LP |
1313 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1314 | continue; | |
1315 | ||
bb00e604 LP |
1316 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1317 | (long unsigned) si.si_pid, | |
4112df16 LP |
1318 | sigchld_code_to_string(si.si_code), |
1319 | si.si_status, | |
d06dacd0 LP |
1320 | strna(si.si_code == CLD_EXITED |
1321 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1322 | : signal_to_string(si.si_status))); | |
acbb0225 | 1323 | |
8c47c732 | 1324 | if (!u) |
9152c765 LP |
1325 | continue; |
1326 | ||
66870f90 ZJS |
1327 | log_debug_unit(u->id, |
1328 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1329 | |
c6c18be3 | 1330 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1331 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1332 | } |
1333 | ||
1334 | return 0; | |
1335 | } | |
1336 | ||
7d793605 | 1337 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1338 | int r; |
398ef8ba LP |
1339 | DBusError error; |
1340 | ||
1341 | dbus_error_init(&error); | |
1342 | ||
66870f90 | 1343 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1344 | |
bd0af849 ZJS |
1345 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1346 | if (r < 0) | |
66870f90 ZJS |
1347 | log_error_unit(name, |
1348 | "Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1349 | |
398ef8ba | 1350 | dbus_error_free(&error); |
a1b256b0 LP |
1351 | |
1352 | return r; | |
28247076 LP |
1353 | } |
1354 | ||
a16e1123 | 1355 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1356 | ssize_t n; |
1357 | struct signalfd_siginfo sfsi; | |
1358 | bool sigchld = false; | |
1359 | ||
1360 | assert(m); | |
1361 | ||
1362 | for (;;) { | |
57cb4adf LP |
1363 | n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi)); |
1364 | if (n != sizeof(sfsi)) { | |
9152c765 LP |
1365 | |
1366 | if (n >= 0) | |
1367 | return -EIO; | |
1368 | ||
63090775 | 1369 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1370 | break; |
9152c765 LP |
1371 | |
1372 | return -errno; | |
1373 | } | |
1374 | ||
67370238 LP |
1375 | if (sfsi.ssi_pid > 0) { |
1376 | char *p = NULL; | |
1377 | ||
87d2c1ff | 1378 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1379 | |
67370238 | 1380 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1381 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1382 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1383 | free(p); | |
1384 | } else | |
4e240ab0 | 1385 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1386 | |
b9cd2ec1 LP |
1387 | switch (sfsi.ssi_signo) { |
1388 | ||
4112df16 | 1389 | case SIGCHLD: |
9152c765 | 1390 | sigchld = true; |
b9cd2ec1 LP |
1391 | break; |
1392 | ||
6632c602 | 1393 | case SIGTERM: |
67445f4e | 1394 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1395 | /* This is for compatibility with the |
1396 | * original sysvinit */ | |
e11dc4a2 | 1397 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1398 | break; |
1399 | } | |
84e9af1e | 1400 | |
a1b256b0 | 1401 | /* Fall through */ |
e11dc4a2 LP |
1402 | |
1403 | case SIGINT: | |
67445f4e | 1404 | if (m->running_as == SYSTEMD_SYSTEM) { |
7d793605 | 1405 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE); |
84e9af1e LP |
1406 | break; |
1407 | } | |
1408 | ||
a1b256b0 | 1409 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1410 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1411 | m->exit_code = MANAGER_EXIT; |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | break; | |
84e9af1e | 1416 | |
28247076 | 1417 | case SIGWINCH: |
67445f4e | 1418 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1419 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1420 | |
28247076 LP |
1421 | /* This is a nop on non-init */ |
1422 | break; | |
84e9af1e | 1423 | |
28247076 | 1424 | case SIGPWR: |
67445f4e | 1425 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1426 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1427 | |
28247076 | 1428 | /* This is a nop on non-init */ |
84e9af1e | 1429 | break; |
6632c602 | 1430 | |
1005d14f | 1431 | case SIGUSR1: { |
57ee42ce LP |
1432 | Unit *u; |
1433 | ||
1434 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1435 | ||
1436 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1437 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1438 | bus_init(m, true); |
57ee42ce LP |
1439 | } |
1440 | ||
1441 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1442 | log_info("Loading D-Bus service..."); | |
7d793605 | 1443 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1444 | } |
1445 | ||
1446 | break; | |
1447 | } | |
1448 | ||
2149e37c LP |
1449 | case SIGUSR2: { |
1450 | FILE *f; | |
1451 | char *dump = NULL; | |
1452 | size_t size; | |
1453 | ||
1454 | if (!(f = open_memstream(&dump, &size))) { | |
1455 | log_warning("Failed to allocate memory stream."); | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | manager_dump_units(m, f, "\t"); | |
1460 | manager_dump_jobs(m, f, "\t"); | |
1461 | ||
1462 | if (ferror(f)) { | |
1463 | fclose(f); | |
1464 | free(dump); | |
1465 | log_warning("Failed to write status stream"); | |
1466 | break; | |
1467 | } | |
1468 | ||
1469 | fclose(f); | |
1470 | log_dump(LOG_INFO, dump); | |
1471 | free(dump); | |
1472 | ||
1005d14f | 1473 | break; |
2149e37c | 1474 | } |
1005d14f | 1475 | |
a16e1123 LP |
1476 | case SIGHUP: |
1477 | m->exit_code = MANAGER_RELOAD; | |
1478 | break; | |
1479 | ||
7d793605 | 1480 | default: { |
253ee27a | 1481 | |
0003d1ab LP |
1482 | /* Starting SIGRTMIN+0 */ |
1483 | static const char * const target_table[] = { | |
7d793605 LP |
1484 | [0] = SPECIAL_DEFAULT_TARGET, |
1485 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1486 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1487 | [3] = SPECIAL_HALT_TARGET, |
1488 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1489 | [5] = SPECIAL_REBOOT_TARGET, |
1490 | [6] = SPECIAL_KEXEC_TARGET | |
1491 | }; | |
1492 | ||
1493 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1494 | static const ManagerExitCode code_table[] = { | |
1495 | [0] = MANAGER_HALT, | |
1496 | [1] = MANAGER_POWEROFF, | |
1497 | [2] = MANAGER_REBOOT, | |
1498 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1499 | }; |
1500 | ||
1501 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1502 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1503 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1504 | manager_start_target(m, target_table[idx], | |
1505 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1506 | break; |
1507 | } | |
1508 | ||
0003d1ab LP |
1509 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1510 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1511 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1512 | break; | |
1513 | } | |
1514 | ||
0658666b LP |
1515 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1516 | ||
1517 | case 20: | |
1518 | log_debug("Enabling showing of status."); | |
27d340c7 | 1519 | manager_set_show_status(m, true); |
0658666b LP |
1520 | break; |
1521 | ||
1522 | case 21: | |
1523 | log_debug("Disabling showing of status."); | |
27d340c7 | 1524 | manager_set_show_status(m, false); |
0658666b LP |
1525 | break; |
1526 | ||
253ee27a LP |
1527 | case 22: |
1528 | log_set_max_level(LOG_DEBUG); | |
1529 | log_notice("Setting log level to debug."); | |
1530 | break; | |
1531 | ||
1532 | case 23: | |
1533 | log_set_max_level(LOG_INFO); | |
1534 | log_notice("Setting log level to info."); | |
1535 | break; | |
1536 | ||
600b704e LP |
1537 | case 24: |
1538 | if (m->running_as == SYSTEMD_USER) { | |
1539 | m->exit_code = MANAGER_EXIT; | |
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | /* This is a nop on init */ | |
1544 | break; | |
1545 | ||
4cfa2c99 LP |
1546 | case 26: |
1547 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1548 | log_notice("Setting log target to journal-or-kmsg."); | |
1549 | break; | |
1550 | ||
253ee27a LP |
1551 | case 27: |
1552 | log_set_target(LOG_TARGET_CONSOLE); | |
1553 | log_notice("Setting log target to console."); | |
1554 | break; | |
1555 | ||
1556 | case 28: | |
1557 | log_set_target(LOG_TARGET_KMSG); | |
1558 | log_notice("Setting log target to kmsg."); | |
1559 | break; | |
1560 | ||
1561 | case 29: | |
1562 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1563 | log_notice("Setting log target to syslog-or-kmsg."); | |
1564 | break; | |
1565 | ||
0658666b | 1566 | default: |
4e240ab0 | 1567 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1568 | } |
b9cd2ec1 | 1569 | } |
7d793605 | 1570 | } |
9152c765 LP |
1571 | } |
1572 | ||
1573 | if (sigchld) | |
034c6ed7 LP |
1574 | return manager_dispatch_sigchld(m); |
1575 | ||
1576 | return 0; | |
1577 | } | |
1578 | ||
a16e1123 | 1579 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1580 | int r; |
acbb0225 | 1581 | Watch *w; |
034c6ed7 LP |
1582 | |
1583 | assert(m); | |
1584 | assert(ev); | |
1585 | ||
3df5bf61 | 1586 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1587 | |
40dde66f LP |
1588 | if (w->type == WATCH_INVALID) |
1589 | return 0; | |
1590 | ||
acbb0225 | 1591 | switch (w->type) { |
034c6ed7 | 1592 | |
ef734fd6 | 1593 | case WATCH_SIGNAL: |
034c6ed7 | 1594 | |
acbb0225 | 1595 | /* An incoming signal? */ |
f94ea366 | 1596 | if (ev->events != EPOLLIN) |
acbb0225 | 1597 | return -EINVAL; |
034c6ed7 | 1598 | |
a16e1123 | 1599 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1600 | return r; |
034c6ed7 | 1601 | |
acbb0225 | 1602 | break; |
034c6ed7 | 1603 | |
8c47c732 LP |
1604 | case WATCH_NOTIFY: |
1605 | ||
1606 | /* An incoming daemon notification event? */ | |
1607 | if (ev->events != EPOLLIN) | |
1608 | return -EINVAL; | |
1609 | ||
1610 | if ((r = manager_process_notify_fd(m)) < 0) | |
1611 | return r; | |
1612 | ||
1613 | break; | |
1614 | ||
acbb0225 | 1615 | case WATCH_FD: |
034c6ed7 | 1616 | |
acbb0225 | 1617 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1618 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1619 | break; |
034c6ed7 | 1620 | |
faf919f1 LP |
1621 | case WATCH_UNIT_TIMER: |
1622 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1623 | uint64_t v; |
1624 | ssize_t k; | |
034c6ed7 | 1625 | |
acbb0225 | 1626 | /* Some timer event, to be dispatched to the units */ |
68b29a9f LP |
1627 | k = read(w->fd, &v, sizeof(v)); |
1628 | if (k != sizeof(v)) { | |
034c6ed7 | 1629 | |
acbb0225 LP |
1630 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1631 | break; | |
034c6ed7 | 1632 | |
8742514c | 1633 | log_error("Failed to read timer event counter: %s", k < 0 ? strerror(-k) : "Short read"); |
acbb0225 | 1634 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1635 | } |
1636 | ||
faf919f1 LP |
1637 | if (w->type == WATCH_UNIT_TIMER) |
1638 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1639 | else | |
1640 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1641 | break; |
1642 | } | |
1643 | ||
ef734fd6 LP |
1644 | case WATCH_MOUNT: |
1645 | /* Some mount table change, intended for the mount subsystem */ | |
1646 | mount_fd_event(m, ev->events); | |
1647 | break; | |
1648 | ||
4e434314 LP |
1649 | case WATCH_SWAP: |
1650 | /* Some swap table change, intended for the swap subsystem */ | |
1651 | swap_fd_event(m, ev->events); | |
1652 | break; | |
1653 | ||
f94ea366 LP |
1654 | case WATCH_UDEV: |
1655 | /* Some notification from udev, intended for the device subsystem */ | |
1656 | device_fd_event(m, ev->events); | |
1657 | break; | |
1658 | ||
ea430986 LP |
1659 | case WATCH_DBUS_WATCH: |
1660 | bus_watch_event(m, w, ev->events); | |
1661 | break; | |
1662 | ||
1663 | case WATCH_DBUS_TIMEOUT: | |
1664 | bus_timeout_event(m, w, ev->events); | |
1665 | break; | |
1666 | ||
8742514c LP |
1667 | case WATCH_TIME_CHANGE: { |
1668 | Unit *u; | |
1669 | Iterator i; | |
1670 | ||
1671 | log_struct(LOG_INFO, | |
1672 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1673 | "MESSAGE=Time has been changed", | |
1674 | NULL); | |
1675 | ||
1676 | /* Restart the watch */ | |
1677 | close_nointr_nofail(m->time_change_watch.fd); | |
1678 | watch_init(&m->time_change_watch); | |
1679 | manager_setup_time_change(m); | |
1680 | ||
1681 | HASHMAP_FOREACH(u, m->units, i) { | |
1682 | if (UNIT_VTABLE(u)->time_change) | |
1683 | UNIT_VTABLE(u)->time_change(u); | |
1684 | } | |
1685 | ||
1686 | break; | |
1687 | } | |
1688 | ||
03b717a3 MS |
1689 | case WATCH_JOBS_IN_PROGRESS: { |
1690 | uint64_t v; | |
1691 | ||
1692 | /* not interested in the data */ | |
1693 | read(w->fd, &v, sizeof(v)); | |
1694 | ||
1695 | manager_print_jobs_in_progress(m); | |
1696 | break; | |
1697 | } | |
1698 | ||
acbb0225 | 1699 | default: |
c5fd1e57 | 1700 | log_error("event type=%i", w->type); |
acbb0225 | 1701 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1702 | } |
9152c765 LP |
1703 | |
1704 | return 0; | |
1705 | } | |
1706 | ||
1707 | int manager_loop(Manager *m) { | |
1708 | int r; | |
9152c765 | 1709 | |
fac9f8df | 1710 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1711 | |
9152c765 | 1712 | assert(m); |
a16e1123 | 1713 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1714 | |
fe51822e LP |
1715 | /* Release the path cache */ |
1716 | set_free_free(m->unit_path_cache); | |
1717 | m->unit_path_cache = NULL; | |
1718 | ||
b0c918b9 LP |
1719 | manager_check_finished(m); |
1720 | ||
a4312405 LP |
1721 | /* There might still be some zombies hanging around from |
1722 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1723 | r = manager_dispatch_sigchld(m); |
1724 | if (r < 0) | |
a4312405 LP |
1725 | return r; |
1726 | ||
a16e1123 | 1727 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1728 | struct epoll_event event; |
1729 | int n; | |
c757a65b | 1730 | int wait_msec = -1; |
9152c765 | 1731 | |
67445f4e | 1732 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1733 | watchdog_ping(); |
1734 | ||
ea430986 LP |
1735 | if (!ratelimit_test(&rl)) { |
1736 | /* Yay, something is going seriously wrong, pause a little */ | |
1737 | log_warning("Looping too fast. Throttling execution a little."); | |
1738 | sleep(1); | |
e96d6be7 | 1739 | continue; |
ea430986 LP |
1740 | } |
1741 | ||
37a8e683 | 1742 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1743 | continue; |
1744 | ||
37a8e683 | 1745 | if (manager_dispatch_run_queue(m) > 0) |
701cc384 LP |
1746 | continue; |
1747 | ||
37a8e683 | 1748 | if (bus_dispatch(m) > 0) |
c1e1601e | 1749 | continue; |
034c6ed7 | 1750 | |
37a8e683 | 1751 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e LP |
1752 | continue; |
1753 | ||
37a8e683 | 1754 | if (manager_dispatch_gc_queue(m) > 0) |
c1e1601e LP |
1755 | continue; |
1756 | ||
1757 | if (manager_dispatch_dbus_queue(m) > 0) | |
ea430986 | 1758 | continue; |
ea430986 | 1759 | |
e04aad61 LP |
1760 | if (swap_dispatch_reload(m) > 0) |
1761 | continue; | |
1762 | ||
c757a65b | 1763 | /* Sleep for half the watchdog time */ |
67445f4e | 1764 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
c757a65b LP |
1765 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); |
1766 | if (wait_msec <= 0) | |
1767 | wait_msec = 1; | |
1768 | } else | |
1769 | wait_msec = -1; | |
1770 | ||
e96d6be7 LP |
1771 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1772 | if (n < 0) { | |
9152c765 | 1773 | |
6089f4a9 | 1774 | if (errno == EINTR) |
9152c765 LP |
1775 | continue; |
1776 | ||
1777 | return -errno; | |
e96d6be7 LP |
1778 | } else if (n == 0) |
1779 | continue; | |
9152c765 | 1780 | |
957ca890 | 1781 | assert(n == 1); |
b9cd2ec1 | 1782 | |
e96d6be7 LP |
1783 | r = process_event(m, &event); |
1784 | if (r < 0) | |
957ca890 | 1785 | return r; |
a16e1123 | 1786 | } |
957ca890 | 1787 | |
a16e1123 | 1788 | return m->exit_code; |
83c60c9f | 1789 | } |
ea430986 | 1790 | |
80fbf05e | 1791 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ea430986 LP |
1792 | char *n; |
1793 | Unit *u; | |
80fbf05e | 1794 | int r; |
ea430986 LP |
1795 | |
1796 | assert(m); | |
1797 | assert(s); | |
1798 | assert(_u); | |
1799 | ||
1800 | if (!startswith(s, "/org/freedesktop/systemd1/unit/")) | |
1801 | return -EINVAL; | |
1802 | ||
80fbf05e MS |
1803 | n = bus_path_unescape(s+31); |
1804 | if (!n) | |
ea430986 LP |
1805 | return -ENOMEM; |
1806 | ||
80fbf05e | 1807 | r = manager_load_unit(m, n, NULL, e, &u); |
ea430986 LP |
1808 | free(n); |
1809 | ||
80fbf05e MS |
1810 | if (r < 0) |
1811 | return r; | |
ea430986 LP |
1812 | |
1813 | *_u = u; | |
1814 | ||
1815 | return 0; | |
1816 | } | |
86fbf370 LP |
1817 | |
1818 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1819 | Job *j; | |
1820 | unsigned id; | |
1821 | int r; | |
1822 | ||
1823 | assert(m); | |
1824 | assert(s); | |
1825 | assert(_j); | |
1826 | ||
1827 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1828 | return -EINVAL; | |
1829 | ||
8742514c LP |
1830 | r = safe_atou(s + 30, &id); |
1831 | if (r < 0) | |
86fbf370 LP |
1832 | return r; |
1833 | ||
8742514c LP |
1834 | j = manager_get_job(m, id); |
1835 | if (!j) | |
86fbf370 LP |
1836 | return -ENOENT; |
1837 | ||
1838 | *_j = j; | |
1839 | ||
1840 | return 0; | |
1841 | } | |
dfcd764e | 1842 | |
4927fcae | 1843 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1844 | |
4927fcae LP |
1845 | #ifdef HAVE_AUDIT |
1846 | char *p; | |
c1165f82 | 1847 | int audit_fd; |
e537352b | 1848 | |
c1165f82 LP |
1849 | audit_fd = get_audit_fd(); |
1850 | if (audit_fd < 0) | |
e537352b LP |
1851 | return; |
1852 | ||
bbd3a7ba LP |
1853 | /* Don't generate audit events if the service was already |
1854 | * started and we're just deserializing */ | |
a7556052 | 1855 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1856 | return; |
1857 | ||
67445f4e | 1858 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1859 | return; |
1860 | ||
ac155bb8 | 1861 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1862 | return; |
1863 | ||
bd0af849 ZJS |
1864 | p = unit_name_to_prefix_and_instance(u->id); |
1865 | if (!p) { | |
66870f90 ZJS |
1866 | log_error_unit(u->id, |
1867 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1868 | return; |
1869 | } | |
1870 | ||
c1165f82 | 1871 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1872 | if (errno == EPERM) { |
1873 | /* We aren't allowed to send audit messages? | |
44785992 | 1874 | * Then let's not retry again. */ |
c1165f82 | 1875 | close_audit_fd(); |
44785992 LP |
1876 | } else |
1877 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1878 | } |
e537352b | 1879 | |
4927fcae LP |
1880 | free(p); |
1881 | #endif | |
e537352b | 1882 | |
e537352b LP |
1883 | } |
1884 | ||
e983b760 LP |
1885 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1886 | int fd = -1; | |
1887 | union sockaddr_union sa; | |
1888 | int n = 0; | |
1889 | char *message = NULL; | |
e983b760 LP |
1890 | |
1891 | /* Don't generate plymouth events if the service was already | |
1892 | * started and we're just deserializing */ | |
a7556052 | 1893 | if (m->n_reloading > 0) |
e983b760 LP |
1894 | return; |
1895 | ||
67445f4e | 1896 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1897 | return; |
1898 | ||
ac155bb8 MS |
1899 | if (u->type != UNIT_SERVICE && |
1900 | u->type != UNIT_MOUNT && | |
1901 | u->type != UNIT_SWAP) | |
e983b760 LP |
1902 | return; |
1903 | ||
1904 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1905 | * message then wait for plymouth */ | |
1906 | if ((fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) { | |
1907 | log_error("socket() failed: %m"); | |
1908 | return; | |
1909 | } | |
1910 | ||
1911 | zero(sa); | |
1912 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1913 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1914 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1915 | |
1916 | if (errno != EPIPE && | |
1917 | errno != EAGAIN && | |
1918 | errno != ENOENT && | |
1919 | errno != ECONNREFUSED && | |
1920 | errno != ECONNRESET && | |
1921 | errno != ECONNABORTED) | |
1922 | log_error("connect() failed: %m"); | |
1923 | ||
1924 | goto finish; | |
1925 | } | |
1926 | ||
ac155bb8 | 1927 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1928 | log_oom(); |
e983b760 LP |
1929 | goto finish; |
1930 | } | |
1931 | ||
1932 | errno = 0; | |
bd40a2d8 | 1933 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1934 | |
1935 | if (errno != EPIPE && | |
1936 | errno != EAGAIN && | |
1937 | errno != ENOENT && | |
1938 | errno != ECONNREFUSED && | |
1939 | errno != ECONNRESET && | |
1940 | errno != ECONNABORTED) | |
1941 | log_error("Failed to write Plymouth message: %m"); | |
1942 | ||
1943 | goto finish; | |
1944 | } | |
1945 | ||
1946 | finish: | |
1947 | if (fd >= 0) | |
1948 | close_nointr_nofail(fd); | |
1949 | ||
1950 | free(message); | |
1951 | } | |
1952 | ||
05e343b7 LP |
1953 | void manager_dispatch_bus_name_owner_changed( |
1954 | Manager *m, | |
1955 | const char *name, | |
1956 | const char* old_owner, | |
1957 | const char *new_owner) { | |
1958 | ||
1959 | Unit *u; | |
1960 | ||
1961 | assert(m); | |
1962 | assert(name); | |
1963 | ||
1964 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1965 | return; | |
1966 | ||
1967 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1968 | } | |
1969 | ||
1970 | void manager_dispatch_bus_query_pid_done( | |
1971 | Manager *m, | |
1972 | const char *name, | |
1973 | pid_t pid) { | |
1974 | ||
1975 | Unit *u; | |
1976 | ||
1977 | assert(m); | |
1978 | assert(name); | |
1979 | assert(pid >= 1); | |
1980 | ||
1981 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1982 | return; | |
1983 | ||
1984 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
1985 | } | |
1986 | ||
d8d5ab98 | 1987 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1988 | char *path = NULL; |
a16e1123 LP |
1989 | mode_t saved_umask; |
1990 | int fd; | |
1991 | FILE *f; | |
1992 | ||
1993 | assert(_f); | |
1994 | ||
67445f4e | 1995 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1996 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1997 | else |
1998 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1999 | |
b925e726 LP |
2000 | if (!path) |
2001 | return -ENOMEM; | |
a16e1123 LP |
2002 | |
2003 | saved_umask = umask(0077); | |
2004 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
2005 | umask(saved_umask); | |
2006 | ||
2007 | if (fd < 0) { | |
2008 | free(path); | |
2009 | return -errno; | |
2010 | } | |
2011 | ||
2012 | unlink(path); | |
2013 | ||
2014 | log_debug("Serializing state to %s", path); | |
2015 | free(path); | |
2016 | ||
01e10de3 LP |
2017 | f = fdopen(fd, "w+"); |
2018 | if (!f) | |
a16e1123 LP |
2019 | return -errno; |
2020 | ||
2021 | *_f = f; | |
2022 | ||
2023 | return 0; | |
2024 | } | |
2025 | ||
6b78f9b4 | 2026 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool serialize_jobs) { |
a16e1123 LP |
2027 | Iterator i; |
2028 | Unit *u; | |
2029 | const char *t; | |
4a9fd066 | 2030 | char **e; |
a16e1123 LP |
2031 | int r; |
2032 | ||
2033 | assert(m); | |
2034 | assert(f); | |
2035 | assert(fds); | |
2036 | ||
a7556052 | 2037 | m->n_reloading ++; |
38c52d46 | 2038 | |
01d67b43 LP |
2039 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2040 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2041 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2042 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2043 | |
915b3753 LP |
2044 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
2045 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); | |
2046 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); | |
e9ddabc2 | 2047 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2048 | |
26a1efdf | 2049 | if (!in_initrd()) { |
915b3753 | 2050 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 HH |
2051 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
2052 | } | |
47a483a1 | 2053 | |
4a9fd066 OS |
2054 | STRV_FOREACH(e, m->environment) { |
2055 | _cleanup_free_ char *ce; | |
2056 | ||
2057 | ce = cescape(*e); | |
2058 | if (ce) | |
2059 | fprintf(f, "env=%s\n", *e); | |
2060 | } | |
2061 | ||
f2382a94 LP |
2062 | fputc('\n', f); |
2063 | ||
a16e1123 | 2064 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2065 | if (u->id != t) |
a16e1123 LP |
2066 | continue; |
2067 | ||
2068 | if (!unit_can_serialize(u)) | |
2069 | continue; | |
2070 | ||
2071 | /* Start marker */ | |
ac155bb8 | 2072 | fputs(u->id, f); |
a16e1123 LP |
2073 | fputc('\n', f); |
2074 | ||
6b78f9b4 | 2075 | if ((r = unit_serialize(u, f, fds, serialize_jobs)) < 0) { |
a7556052 | 2076 | m->n_reloading --; |
a16e1123 | 2077 | return r; |
38c52d46 | 2078 | } |
a16e1123 LP |
2079 | } |
2080 | ||
a7556052 LP |
2081 | assert(m->n_reloading > 0); |
2082 | m->n_reloading --; | |
38c52d46 | 2083 | |
a16e1123 LP |
2084 | if (ferror(f)) |
2085 | return -EIO; | |
2086 | ||
b23de6af LP |
2087 | r = bus_fdset_add_all(m, fds); |
2088 | if (r < 0) | |
2089 | return r; | |
2090 | ||
a16e1123 LP |
2091 | return 0; |
2092 | } | |
2093 | ||
2094 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2095 | int r = 0; | |
2096 | ||
2097 | assert(m); | |
2098 | assert(f); | |
2099 | ||
2100 | log_debug("Deserializing state..."); | |
2101 | ||
a7556052 | 2102 | m->n_reloading ++; |
82c64bf5 | 2103 | |
10f8e83c | 2104 | for (;;) { |
20c03b7b | 2105 | char line[LINE_MAX], *l; |
10f8e83c LP |
2106 | |
2107 | if (!fgets(line, sizeof(line), f)) { | |
2108 | if (feof(f)) | |
2109 | r = 0; | |
2110 | else | |
2111 | r = -errno; | |
2112 | ||
2113 | goto finish; | |
2114 | } | |
2115 | ||
2116 | char_array_0(line); | |
2117 | l = strstrip(line); | |
2118 | ||
2119 | if (l[0] == 0) | |
2120 | break; | |
2121 | ||
01d67b43 LP |
2122 | if (startswith(l, "current-job-id=")) { |
2123 | uint32_t id; | |
2124 | ||
2125 | if (safe_atou32(l+15, &id) < 0) | |
2126 | log_debug("Failed to parse current job id value %s", l+15); | |
2127 | else | |
2128 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
2129 | } else if (startswith(l, "n-installed-jobs=")) { |
2130 | uint32_t n; | |
2131 | ||
2132 | if (safe_atou32(l+17, &n) < 0) | |
2133 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2134 | else | |
2135 | m->n_installed_jobs += n; | |
2136 | } else if (startswith(l, "n-failed-jobs=")) { | |
2137 | uint32_t n; | |
2138 | ||
2139 | if (safe_atou32(l+14, &n) < 0) | |
2140 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2141 | else | |
2142 | m->n_failed_jobs += n; | |
01d67b43 LP |
2143 | } else if (startswith(l, "taint-usr=")) { |
2144 | int b; | |
2145 | ||
2146 | if ((b = parse_boolean(l+10)) < 0) | |
2147 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2148 | else | |
2149 | m->taint_usr = m->taint_usr || b; | |
915b3753 LP |
2150 | } else if (startswith(l, "firmware-timestamp=")) |
2151 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2152 | else if (startswith(l, "loader-timestamp=")) | |
2153 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2154 | else if (startswith(l, "kernel-timestamp=")) | |
2155 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2156 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2157 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2158 | else if (startswith(l, "userspace-timestamp=")) |
2159 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2160 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2161 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
4a9fd066 OS |
2162 | else if (startswith(l, "env=")) { |
2163 | _cleanup_free_ char *uce = NULL; | |
2164 | char **e; | |
2165 | ||
2166 | uce = cunescape(l+4); | |
2167 | if (!uce) { | |
2168 | r = -ENOMEM; | |
2169 | goto finish; | |
2170 | } | |
2171 | ||
2172 | e = strv_env_set(m->environment, uce); | |
2173 | if (!e) { | |
2174 | r = -ENOMEM; | |
2175 | goto finish; | |
2176 | } | |
2177 | ||
2178 | strv_free(m->environment); | |
2179 | m->environment = e; | |
2180 | } else | |
10f8e83c LP |
2181 | log_debug("Unknown serialization item '%s'", l); |
2182 | } | |
2183 | ||
a16e1123 LP |
2184 | for (;;) { |
2185 | Unit *u; | |
2186 | char name[UNIT_NAME_MAX+2]; | |
2187 | ||
2188 | /* Start marker */ | |
2189 | if (!fgets(name, sizeof(name), f)) { | |
2190 | if (feof(f)) | |
10f8e83c LP |
2191 | r = 0; |
2192 | else | |
2193 | r = -errno; | |
a16e1123 | 2194 | |
82c64bf5 | 2195 | goto finish; |
a16e1123 LP |
2196 | } |
2197 | ||
2198 | char_array_0(name); | |
2199 | ||
bd0af849 ZJS |
2200 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2201 | if (r < 0) | |
82c64bf5 | 2202 | goto finish; |
a16e1123 | 2203 | |
01e10de3 LP |
2204 | r = unit_deserialize(u, f, fds); |
2205 | if (r < 0) | |
82c64bf5 | 2206 | goto finish; |
a16e1123 LP |
2207 | } |
2208 | ||
10f8e83c | 2209 | finish: |
82c64bf5 LP |
2210 | if (ferror(f)) { |
2211 | r = -EIO; | |
2212 | goto finish; | |
2213 | } | |
a16e1123 | 2214 | |
a7556052 LP |
2215 | assert(m->n_reloading > 0); |
2216 | m->n_reloading --; | |
82c64bf5 LP |
2217 | |
2218 | return r; | |
a16e1123 LP |
2219 | } |
2220 | ||
01e10de3 LP |
2221 | int manager_distribute_fds(Manager *m, FDSet *fds) { |
2222 | Unit *u; | |
2223 | Iterator i; | |
2224 | int r; | |
2225 | ||
2226 | assert(m); | |
2227 | ||
2228 | HASHMAP_FOREACH(u, m->units, i) { | |
2229 | ||
2230 | if (fdset_size(fds) <= 0) | |
2231 | break; | |
2232 | ||
2233 | if (UNIT_VTABLE(u)->distribute_fds) { | |
2234 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
2235 | if (r < 0) | |
2236 | return r; | |
2237 | } | |
2238 | } | |
2239 | ||
2240 | return 0; | |
2241 | } | |
2242 | ||
a16e1123 LP |
2243 | int manager_reload(Manager *m) { |
2244 | int r, q; | |
2245 | FILE *f; | |
2246 | FDSet *fds; | |
2247 | ||
2248 | assert(m); | |
2249 | ||
07719a21 LP |
2250 | r = manager_open_serialization(m, &f); |
2251 | if (r < 0) | |
a16e1123 LP |
2252 | return r; |
2253 | ||
a7556052 | 2254 | m->n_reloading ++; |
38c52d46 | 2255 | |
07719a21 LP |
2256 | fds = fdset_new(); |
2257 | if (!fds) { | |
a7556052 | 2258 | m->n_reloading --; |
a16e1123 LP |
2259 | r = -ENOMEM; |
2260 | goto finish; | |
2261 | } | |
2262 | ||
6b78f9b4 | 2263 | r = manager_serialize(m, f, fds, true); |
07719a21 | 2264 | if (r < 0) { |
a7556052 | 2265 | m->n_reloading --; |
a16e1123 | 2266 | goto finish; |
38c52d46 | 2267 | } |
a16e1123 LP |
2268 | |
2269 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2270 | m->n_reloading --; |
a16e1123 LP |
2271 | r = -errno; |
2272 | goto finish; | |
2273 | } | |
2274 | ||
2275 | /* From here on there is no way back. */ | |
2276 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2277 | manager_undo_generators(m); |
84e3543e | 2278 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2279 | |
07719a21 | 2280 | /* Find new unit paths */ |
5a1e9937 LP |
2281 | manager_run_generators(m); |
2282 | ||
07719a21 LP |
2283 | q = lookup_paths_init( |
2284 | &m->lookup_paths, m->running_as, true, | |
2285 | m->generator_unit_path, | |
2286 | m->generator_unit_path_early, | |
2287 | m->generator_unit_path_late); | |
2288 | if (q < 0) | |
2289 | r = q; | |
2290 | ||
5a1e9937 LP |
2291 | manager_build_unit_path_cache(m); |
2292 | ||
a16e1123 | 2293 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2294 | q = manager_enumerate(m); |
2295 | if (q < 0) | |
a16e1123 LP |
2296 | r = q; |
2297 | ||
2298 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2299 | q = manager_deserialize(m, f, fds); |
2300 | if (q < 0) | |
a16e1123 LP |
2301 | r = q; |
2302 | ||
2303 | fclose(f); | |
2304 | f = NULL; | |
2305 | ||
2306 | /* Third, fire things up! */ | |
07719a21 LP |
2307 | q = manager_coldplug(m); |
2308 | if (q < 0) | |
a16e1123 LP |
2309 | r = q; |
2310 | ||
a7556052 LP |
2311 | assert(m->n_reloading > 0); |
2312 | m->n_reloading--; | |
9f611ad8 | 2313 | |
a16e1123 LP |
2314 | finish: |
2315 | if (f) | |
2316 | fclose(f); | |
2317 | ||
2318 | if (fds) | |
2319 | fdset_free(fds); | |
2320 | ||
2321 | return r; | |
2322 | } | |
2323 | ||
6084e22e | 2324 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2325 | Unit *u; |
2326 | ||
2327 | assert(m); | |
2328 | ||
2329 | /* Is the initial job still around? */ | |
bacbccb7 | 2330 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2331 | return true; |
2332 | ||
2333 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2334 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2335 | if (u) | |
ac155bb8 | 2336 | return !!u->job; |
9e58ff9c LP |
2337 | |
2338 | return false; | |
2339 | } | |
2340 | ||
fdf20a31 | 2341 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2342 | Unit *u; |
2343 | Iterator i; | |
2344 | ||
2345 | assert(m); | |
2346 | ||
2347 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2348 | unit_reset_failed(u); |
5632e374 LP |
2349 | } |
2350 | ||
8f6df3fa LP |
2351 | bool manager_unit_pending_inactive(Manager *m, const char *name) { |
2352 | Unit *u; | |
2353 | ||
2354 | assert(m); | |
2355 | assert(name); | |
2356 | ||
2357 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2358 | u = manager_get_unit(m, name); |
2359 | if (!u) | |
8f6df3fa LP |
2360 | return true; |
2361 | ||
18ffdfda | 2362 | return unit_pending_inactive(u); |
8f6df3fa LP |
2363 | } |
2364 | ||
b0c918b9 | 2365 | void manager_check_finished(Manager *m) { |
7ceba241 | 2366 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2367 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2368 | |
2369 | assert(m); | |
2370 | ||
03b717a3 MS |
2371 | if (hashmap_size(m->jobs) > 0) { |
2372 | manager_jobs_in_progress_mod_timer(m); | |
b0c918b9 | 2373 | return; |
03b717a3 | 2374 | } |
b0c918b9 | 2375 | |
f2b68789 LP |
2376 | /* Notify Type=idle units that we are done now */ |
2377 | close_pipe(m->idle_pipe); | |
2378 | ||
af6da548 LP |
2379 | /* Turn off confirm spawn now */ |
2380 | m->confirm_spawn = false; | |
2381 | ||
03b717a3 MS |
2382 | manager_unwatch_jobs_in_progress(m); |
2383 | ||
f2b68789 | 2384 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2385 | return; |
2386 | ||
2387 | dual_timestamp_get(&m->finish_timestamp); | |
2388 | ||
67445f4e | 2389 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2390 | |
915b3753 LP |
2391 | /* Note that m->kernel_usec.monotonic is always at 0, |
2392 | * and m->firmware_usec.monotonic and | |
2393 | * m->loader_usec.monotonic should be considered | |
2394 | * negative values. */ | |
2395 | ||
7ceba241 LP |
2396 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2397 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2398 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2399 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2400 | |
e9ddabc2 | 2401 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2402 | |
915b3753 LP |
2403 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2404 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2405 | |
81270860 LP |
2406 | if (!log_on_console()) |
2407 | log_struct(LOG_INFO, | |
1ca6783f | 2408 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2409 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2410 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2411 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2412 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2413 | format_timespan(kernel, sizeof(kernel), kernel_usec), | |
2414 | format_timespan(initrd, sizeof(initrd), initrd_usec), | |
2415 | format_timespan(userspace, sizeof(userspace), userspace_usec), | |
2416 | format_timespan(sum, sizeof(sum), total_usec), | |
2417 | NULL); | |
18fa6b27 | 2418 | } else { |
915b3753 | 2419 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2420 | initrd_usec = 0; |
2421 | ||
81270860 LP |
2422 | if (!log_on_console()) |
2423 | log_struct(LOG_INFO, | |
1ca6783f | 2424 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2425 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2426 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2427 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2428 | format_timespan(kernel, sizeof(kernel), kernel_usec), | |
2429 | format_timespan(userspace, sizeof(userspace), userspace_usec), | |
2430 | format_timespan(sum, sizeof(sum), total_usec), | |
2431 | NULL); | |
18fa6b27 LP |
2432 | } |
2433 | } else { | |
915b3753 LP |
2434 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2435 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2436 | |
81270860 LP |
2437 | if (!log_on_console()) |
2438 | log_struct(LOG_INFO, | |
1ca6783f | 2439 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2440 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2441 | "MESSAGE=Startup finished in %s.", | |
2442 | format_timespan(sum, sizeof(sum), total_usec), | |
2443 | NULL); | |
18fa6b27 | 2444 | } |
b0c918b9 | 2445 | |
915b3753 | 2446 | bus_broadcast_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2447 | |
2448 | sd_notifyf(false, | |
2449 | "READY=1\nSTATUS=Startup finished in %s.", | |
2450 | format_timespan(sum, sizeof(sum), total_usec)); | |
b0c918b9 LP |
2451 | } |
2452 | ||
07719a21 LP |
2453 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2454 | char *p; | |
2455 | int r; | |
2456 | ||
2457 | assert(m); | |
2458 | assert(generator); | |
2459 | assert(name); | |
2460 | ||
2461 | if (*generator) | |
2462 | return 0; | |
2463 | ||
67445f4e | 2464 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2465 | |
2466 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2467 | if (!p) |
2468 | return log_oom(); | |
07719a21 | 2469 | |
d2e54fae | 2470 | r = mkdir_p_label(p, 0755); |
07719a21 | 2471 | if (r < 0) { |
7ad94c71 ZJS |
2472 | log_error("Failed to create generator directory %s: %s", |
2473 | p, strerror(-r)); | |
07719a21 LP |
2474 | free(p); |
2475 | return r; | |
2476 | } | |
2477 | } else { | |
b7def684 | 2478 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2479 | if (!p) |
2480 | return log_oom(); | |
07719a21 LP |
2481 | |
2482 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2483 | log_error("Failed to create generator directory %s: %m", |
2484 | p); | |
34bf0281 | 2485 | free(p); |
07719a21 LP |
2486 | return -errno; |
2487 | } | |
2488 | } | |
2489 | ||
2490 | *generator = p; | |
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | static void trim_generator_dir(Manager *m, char **generator) { | |
2495 | assert(m); | |
2496 | assert(generator); | |
2497 | ||
2498 | if (!*generator) | |
2499 | return; | |
2500 | ||
2501 | if (rmdir(*generator) >= 0) { | |
2502 | free(*generator); | |
2503 | *generator = NULL; | |
2504 | } | |
2505 | ||
2506 | return; | |
2507 | } | |
2508 | ||
5a1e9937 LP |
2509 | void manager_run_generators(Manager *m) { |
2510 | DIR *d = NULL; | |
5a1e9937 | 2511 | const char *generator_path; |
07719a21 | 2512 | const char *argv[5]; |
07f8a4aa | 2513 | mode_t u; |
07719a21 | 2514 | int r; |
5a1e9937 LP |
2515 | |
2516 | assert(m); | |
2517 | ||
67445f4e | 2518 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2519 | d = opendir(generator_path); |
2520 | if (!d) { | |
5a1e9937 LP |
2521 | if (errno == ENOENT) |
2522 | return; | |
2523 | ||
7ad94c71 ZJS |
2524 | log_error("Failed to enumerate generator directory %s: %m", |
2525 | generator_path); | |
5a1e9937 LP |
2526 | return; |
2527 | } | |
2528 | ||
07719a21 LP |
2529 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2530 | if (r < 0) | |
2531 | goto finish; | |
f1d19aa4 | 2532 | |
07719a21 LP |
2533 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2534 | if (r < 0) | |
2535 | goto finish; | |
5a1e9937 | 2536 | |
07719a21 LP |
2537 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2538 | if (r < 0) | |
2539 | goto finish; | |
5a1e9937 | 2540 | |
83cc030f LP |
2541 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2542 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2543 | argv[2] = m->generator_unit_path_early; |
2544 | argv[3] = m->generator_unit_path_late; | |
2545 | argv[4] = NULL; | |
5a1e9937 | 2546 | |
07f8a4aa | 2547 | u = umask(0022); |
83cc030f | 2548 | execute_directory(generator_path, d, (char**) argv); |
07f8a4aa | 2549 | umask(u); |
5a1e9937 | 2550 | |
07719a21 LP |
2551 | trim_generator_dir(m, &m->generator_unit_path); |
2552 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2553 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2554 | |
2555 | finish: | |
2556 | if (d) | |
2557 | closedir(d); | |
5a1e9937 LP |
2558 | } |
2559 | ||
07719a21 | 2560 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2561 | assert(m); |
07719a21 | 2562 | assert(generator); |
5a1e9937 | 2563 | |
07719a21 | 2564 | if (!*generator) |
5a1e9937 LP |
2565 | return; |
2566 | ||
07719a21 LP |
2567 | strv_remove(m->lookup_paths.unit_path, *generator); |
2568 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2569 | |
07719a21 LP |
2570 | free(*generator); |
2571 | *generator = NULL; | |
2572 | } | |
2573 | ||
2574 | void manager_undo_generators(Manager *m) { | |
2575 | assert(m); | |
2576 | ||
2577 | remove_generator_dir(m, &m->generator_unit_path); | |
2578 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2579 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2580 | } |
2581 | ||
06d4c99a LP |
2582 | int manager_set_default_controllers(Manager *m, char **controllers) { |
2583 | char **l; | |
2584 | ||
2585 | assert(m); | |
2586 | ||
9156e799 LP |
2587 | l = strv_copy(controllers); |
2588 | if (!l) | |
06d4c99a LP |
2589 | return -ENOMEM; |
2590 | ||
2591 | strv_free(m->default_controllers); | |
2592 | m->default_controllers = l; | |
2593 | ||
b59e2465 | 2594 | cg_shorten_controllers(m->default_controllers); |
9156e799 | 2595 | |
06d4c99a LP |
2596 | return 0; |
2597 | } | |
2598 | ||
c93ff2e9 FC |
2599 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2600 | int i; | |
2601 | ||
2602 | assert(m); | |
2603 | ||
2604 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2605 | if (!default_rlimit[i]) |
2606 | continue; | |
c93ff2e9 | 2607 | |
07719a21 LP |
2608 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2609 | if (!m->rlimit[i]) | |
2610 | return -ENOMEM; | |
c93ff2e9 FC |
2611 | } |
2612 | ||
2613 | return 0; | |
2614 | } | |
2615 | ||
4cfa2c99 | 2616 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2617 | Unit *u; |
2618 | ||
2619 | assert(m); | |
2620 | ||
67445f4e | 2621 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2622 | return; |
2623 | ||
731a676c LP |
2624 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2625 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2626 | log_close_journal(); |
731a676c | 2627 | return; |
f1dd0c3f LP |
2628 | } |
2629 | ||
731a676c LP |
2630 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2631 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2632 | log_close_journal(); |
731a676c LP |
2633 | return; |
2634 | } | |
f1dd0c3f | 2635 | |
731a676c LP |
2636 | /* Hmm, OK, so the socket is fully up and the service is up |
2637 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2638 | log_open(); |
2639 | } | |
2640 | ||
27d340c7 LP |
2641 | void manager_set_show_status(Manager *m, bool b) { |
2642 | assert(m); | |
2643 | ||
67445f4e | 2644 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2645 | return; |
2646 | ||
2647 | m->show_status = b; | |
2648 | ||
2649 | if (b) | |
2650 | touch("/run/systemd/show-status"); | |
2651 | else | |
2652 | unlink("/run/systemd/show-status"); | |
2653 | } | |
2654 | ||
6084e22e | 2655 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2656 | assert(m); |
2657 | ||
67445f4e | 2658 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2659 | return false; |
2660 | ||
2661 | if (m->show_status) | |
2662 | return true; | |
2663 | ||
2664 | /* If Plymouth is running make sure we show the status, so | |
2665 | * that there's something nice to see when people press Esc */ | |
2666 | ||
2667 | return plymouth_running(); | |
2668 | } | |
68b29a9f | 2669 | |
984a2be4 | 2670 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2671 | va_list ap; |
2672 | ||
2673 | if (!manager_get_show_status(m)) | |
2674 | return; | |
2675 | ||
03b717a3 MS |
2676 | /* XXX We should totally drop the check for ephemeral here |
2677 | * and thus effectively make 'Type=idle' pointless. */ | |
2678 | if (ephemeral && m->n_on_console > 0) | |
2679 | return; | |
2680 | ||
25cee550 MS |
2681 | if (!manager_is_booting_or_shutting_down(m)) |
2682 | return; | |
2683 | ||
2684 | va_start(ap, format); | |
984a2be4 | 2685 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2686 | va_end(ap); |
2687 | } | |
2688 | ||
68b29a9f LP |
2689 | void watch_init(Watch *w) { |
2690 | assert(w); | |
2691 | ||
2692 | w->type = WATCH_INVALID; | |
2693 | w->fd = -1; | |
2694 | } |