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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 | 58 | #include "mount-setup.h" |
9e2f7c11 | 59 | #include "unit-name.h" |
4139c1b2 LP |
60 | #include "dbus-unit.h" |
61 | #include "dbus-job.h" | |
1137a57c | 62 | #include "missing.h" |
84e3543e | 63 | #include "path-lookup.h" |
514f4ef5 | 64 | #include "special.h" |
398ef8ba | 65 | #include "bus-errors.h" |
d06dacd0 | 66 | #include "exit-status.h" |
5dc4c17f | 67 | #include "virt.h" |
e96d6be7 | 68 | #include "watchdog.h" |
b59e2465 | 69 | #include "cgroup-util.h" |
9eb977db | 70 | #include "path-util.h" |
c1165f82 | 71 | #include "audit-fd.h" |
4f8d551f | 72 | #include "efivars.h" |
8b55b8c4 | 73 | #include "env-util.h" |
60918275 | 74 | |
701cc384 LP |
75 | /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ |
76 | #define GC_QUEUE_ENTRIES_MAX 16 | |
77 | ||
78 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ | |
94b6dfa2 | 79 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 80 | |
03b717a3 MS |
81 | /* Initial delay and the interval for printing status messages about running jobs */ |
82 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
83 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
84 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
85 | ||
8c47c732 | 86 | /* Where clients shall send notification messages to */ |
29252e9e | 87 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 88 | |
c3e31c7b ZJS |
89 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
90 | ||
8c47c732 LP |
91 | static int manager_setup_notify(Manager *m) { |
92 | union { | |
93 | struct sockaddr sa; | |
94 | struct sockaddr_un un; | |
b92bea5d ZJS |
95 | } sa = { |
96 | .sa.sa_family = AF_UNIX, | |
97 | }; | |
98 | struct epoll_event ev = { | |
99 | .events = EPOLLIN, | |
100 | .data.ptr = &m->notify_watch, | |
101 | }; | |
e62d8c39 | 102 | int one = 1, r; |
8c47c732 | 103 | |
8c47c732 | 104 | m->notify_watch.type = WATCH_NOTIFY; |
29252e9e LP |
105 | m->notify_watch.fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
106 | if (m->notify_watch.fd < 0) { | |
8c47c732 LP |
107 | log_error("Failed to allocate notification socket: %m"); |
108 | return -errno; | |
109 | } | |
110 | ||
31f92a7d | 111 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
112 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
113 | else | |
114 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
8c47c732 | 115 | |
29252e9e | 116 | sa.un.sun_path[0] = 0; |
1d6702e8 | 117 | |
e62d8c39 ZJS |
118 | r = bind(m->notify_watch.fd, &sa.sa, |
119 | offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
120 | if (r < 0) { | |
8c47c732 LP |
121 | log_error("bind() failed: %m"); |
122 | return -errno; | |
123 | } | |
124 | ||
e62d8c39 ZJS |
125 | r = setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
126 | if (r < 0) { | |
8c47c732 LP |
127 | log_error("SO_PASSCRED failed: %m"); |
128 | return -errno; | |
129 | } | |
130 | ||
e62d8c39 ZJS |
131 | r = epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev); |
132 | if (r < 0) { | |
28137202 | 133 | log_error("Failed to add notification socket fd to epoll: %m"); |
8c47c732 | 134 | return -errno; |
8742514c | 135 | } |
8c47c732 | 136 | |
29252e9e LP |
137 | sa.un.sun_path[0] = '@'; |
138 | m->notify_socket = strdup(sa.un.sun_path); | |
139 | if (!m->notify_socket) | |
8742514c | 140 | return log_oom(); |
8c47c732 | 141 | |
b2bb3dbe LP |
142 | log_debug("Using notification socket %s", m->notify_socket); |
143 | ||
8c47c732 LP |
144 | return 0; |
145 | } | |
146 | ||
03b717a3 | 147 | static int manager_jobs_in_progress_mod_timer(Manager *m) { |
b92bea5d ZJS |
148 | struct itimerspec its = { |
149 | .it_value.tv_sec = JOBS_IN_PROGRESS_WAIT_SEC, | |
150 | .it_interval.tv_sec = JOBS_IN_PROGRESS_PERIOD_SEC, | |
151 | }; | |
03b717a3 | 152 | |
5b176ee0 MS |
153 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) |
154 | return 0; | |
155 | ||
03b717a3 MS |
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) { | |
b92bea5d ZJS |
163 | struct epoll_event ev = { |
164 | .events = EPOLLIN, | |
165 | .data.ptr = &m->jobs_in_progress_watch, | |
166 | }; | |
03b717a3 MS |
167 | int r; |
168 | ||
03b717a3 MS |
169 | if (m->jobs_in_progress_watch.type != WATCH_INVALID) |
170 | return 0; | |
171 | ||
172 | m->jobs_in_progress_watch.type = WATCH_JOBS_IN_PROGRESS; | |
173 | m->jobs_in_progress_watch.fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC); | |
174 | if (m->jobs_in_progress_watch.fd < 0) { | |
175 | log_error("Failed to create timerfd: %m"); | |
176 | r = -errno; | |
177 | goto err; | |
178 | } | |
179 | ||
180 | r = manager_jobs_in_progress_mod_timer(m); | |
181 | if (r < 0) { | |
182 | log_error("Failed to set up timer for jobs progress watch: %s", strerror(-r)); | |
183 | goto err; | |
184 | } | |
185 | ||
03b717a3 MS |
186 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->jobs_in_progress_watch.fd, &ev) < 0) { |
187 | log_error("Failed to add jobs progress timer fd to epoll: %m"); | |
188 | r = -errno; | |
189 | goto err; | |
190 | } | |
191 | ||
192 | log_debug("Set up jobs progress timerfd."); | |
193 | ||
194 | return 0; | |
195 | ||
196 | err: | |
197 | if (m->jobs_in_progress_watch.fd >= 0) | |
198 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
199 | watch_init(&m->jobs_in_progress_watch); | |
200 | return r; | |
201 | } | |
202 | ||
203 | static void manager_unwatch_jobs_in_progress(Manager *m) { | |
204 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) | |
205 | return; | |
206 | ||
207 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->jobs_in_progress_watch.fd, NULL) >= 0); | |
208 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
209 | watch_init(&m->jobs_in_progress_watch); | |
210 | m->jobs_in_progress_iteration = 0; | |
211 | ||
212 | log_debug("Closed jobs progress timerfd."); | |
213 | } | |
214 | ||
215 | #define CYLON_BUFFER_EXTRA (2*strlen(ANSI_RED_ON) + strlen(ANSI_HIGHLIGHT_RED_ON) + 2*strlen(ANSI_HIGHLIGHT_OFF)) | |
216 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { | |
217 | char *p = buffer; | |
218 | ||
219 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
220 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
221 | ||
222 | if (pos > 1) { | |
6282c859 MS |
223 | if (pos > 2) |
224 | p = mempset(p, ' ', pos-2); | |
5052495b | 225 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
226 | *p++ = '*'; |
227 | } | |
228 | ||
229 | if (pos > 0 && pos <= width) { | |
5052495b | 230 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
231 | *p++ = '*'; |
232 | } | |
233 | ||
5052495b | 234 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
235 | |
236 | if (pos < width) { | |
5052495b | 237 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 238 | *p++ = '*'; |
6282c859 MS |
239 | if (pos < width-1) |
240 | p = mempset(p, ' ', width-1-pos); | |
5052495b | 241 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 242 | } |
03b717a3 MS |
243 | } |
244 | ||
245 | static void manager_print_jobs_in_progress(Manager *m) { | |
246 | Iterator i; | |
247 | Job *j; | |
248 | char *job_of_n = NULL; | |
249 | unsigned counter = 0, print_nr; | |
250 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
251 | unsigned cylon_pos; | |
252 | ||
253 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
254 | ||
255 | HASHMAP_FOREACH(j, m->jobs, i) | |
256 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
257 | break; | |
258 | ||
e970a72e MS |
259 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
260 | * so the above loop must have succeeded in finding j. */ | |
261 | assert(counter == print_nr + 1); | |
5a82a91a | 262 | |
03b717a3 MS |
263 | cylon_pos = m->jobs_in_progress_iteration % 14; |
264 | if (cylon_pos >= 8) | |
265 | cylon_pos = 14 - cylon_pos; | |
266 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
267 | ||
268 | if (m->n_running_jobs > 1) | |
269 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
270 | job_of_n = NULL; | |
271 | ||
272 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
273 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
274 | free(job_of_n); | |
275 | ||
276 | m->jobs_in_progress_iteration++; | |
277 | } | |
278 | ||
8742514c | 279 | static int manager_setup_time_change(Manager *m) { |
b92bea5d ZJS |
280 | struct epoll_event ev = { |
281 | .events = EPOLLIN, | |
282 | .data.ptr = &m->time_change_watch, | |
283 | }; | |
284 | ||
285 | /* We only care for the cancellation event, hence we set the | |
286 | * timeout to the latest possible value. */ | |
287 | struct itimerspec its = { | |
288 | .it_value.tv_sec = TIME_T_MAX, | |
289 | }; | |
290 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 291 | |
8742514c LP |
292 | assert(m->time_change_watch.type == WATCH_INVALID); |
293 | ||
294 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
295 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
296 | ||
297 | m->time_change_watch.type = WATCH_TIME_CHANGE; | |
298 | m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
299 | if (m->time_change_watch.fd < 0) { | |
300 | log_error("Failed to create timerfd: %m"); | |
301 | return -errno; | |
302 | } | |
303 | ||
8742514c LP |
304 | if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
305 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); | |
306 | close_nointr_nofail(m->time_change_watch.fd); | |
307 | watch_init(&m->time_change_watch); | |
308 | return 0; | |
309 | } | |
310 | ||
8742514c LP |
311 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) { |
312 | log_error("Failed to add timer change fd to epoll: %m"); | |
313 | return -errno; | |
314 | } | |
315 | ||
316 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
80876c20 | 321 | static int enable_special_signals(Manager *m) { |
4466ee6a | 322 | int fd; |
80876c20 LP |
323 | |
324 | assert(m); | |
325 | ||
a41b539e | 326 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
327 | * this will fail with EPERM (older) or EINVAL (newer), so |
328 | * ignore that. */ | |
329 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
330 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
331 | ||
a41b539e LP |
332 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
333 | if (fd < 0) { | |
334 | /* Support systems without virtual console */ | |
335 | if (fd != -ENOENT) | |
336 | log_warning("Failed to open /dev/tty0: %m"); | |
337 | } else { | |
80876c20 LP |
338 | /* Enable that we get SIGWINCH on kbrequest */ |
339 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
340 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
341 | ||
342 | close_nointr_nofail(fd); | |
343 | } | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
ce578209 | 348 | static int manager_setup_signals(Manager *m) { |
9152c765 | 349 | sigset_t mask; |
b92bea5d ZJS |
350 | struct epoll_event ev = { |
351 | .events = EPOLLIN, | |
352 | .data.ptr = &m->signal_watch, | |
353 | }; | |
354 | struct sigaction sa = { | |
355 | .sa_handler = SIG_DFL, | |
356 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
357 | }; | |
60918275 | 358 | |
ce578209 LP |
359 | assert(m); |
360 | ||
57c0c30e | 361 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
362 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
363 | ||
ce578209 | 364 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
365 | |
366 | sigset_add_many(&mask, | |
367 | SIGCHLD, /* Child died */ | |
368 | SIGTERM, /* Reexecute daemon */ | |
369 | SIGHUP, /* Reload configuration */ | |
370 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
371 | SIGUSR2, /* systemd: dump status */ | |
372 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
373 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
374 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
375 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 376 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
377 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
378 | SIGRTMIN+3, /* systemd: start halt.target */ | |
379 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
380 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
381 | SIGRTMIN+6, /* systemd: start kexec.target */ |
382 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
383 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
384 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
385 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
386 | SIGRTMIN+20, /* systemd: enable status messages */ |
387 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
388 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
389 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 390 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 391 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
392 | SIGRTMIN+27, /* systemd: set log target to console */ |
393 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
394 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 395 | -1); |
ce578209 LP |
396 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
397 | ||
ef734fd6 | 398 | m->signal_watch.type = WATCH_SIGNAL; |
8742514c LP |
399 | m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
400 | if (m->signal_watch.fd < 0) | |
ce578209 LP |
401 | return -errno; |
402 | ||
ce578209 LP |
403 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) |
404 | return -errno; | |
405 | ||
67445f4e | 406 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 407 | return enable_special_signals(m); |
e1414003 | 408 | |
ce578209 LP |
409 | return 0; |
410 | } | |
411 | ||
71ecc858 LP |
412 | static void manager_strip_environment(Manager *m) { |
413 | assert(m); | |
414 | ||
415 | /* Remove variables from the inherited set that are part of | |
416 | * the container interface: | |
417 | * http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface */ | |
418 | strv_remove_prefix(m->environment, "container="); | |
419 | strv_remove_prefix(m->environment, "container_"); | |
420 | ||
421 | /* Remove variables from the inherited set that are part of | |
422 | * the initrd interface: | |
423 | * http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface */ | |
424 | strv_remove_prefix(m->environment, "RD_"); | |
8b55b8c4 LP |
425 | |
426 | /* Drop invalid entries */ | |
427 | strv_env_clean(m->environment); | |
71ecc858 LP |
428 | } |
429 | ||
67445f4e | 430 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 431 | Manager *m; |
8e274523 LP |
432 | int r = -ENOMEM; |
433 | ||
434 | assert(_m); | |
a5dab5ce | 435 | assert(running_as >= 0); |
67445f4e | 436 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 437 | |
915b3753 LP |
438 | m = new0(Manager, 1); |
439 | if (!m) | |
8e274523 | 440 | return -ENOMEM; |
60918275 | 441 | |
4f8d551f ZC |
442 | #ifdef ENABLE_EFI |
443 | if (detect_container(NULL) <= 0) | |
444 | efi_get_boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); | |
445 | #endif | |
446 | ||
a5dab5ce | 447 | m->running_as = running_as; |
cbd37330 | 448 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 449 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 450 | m->pin_cgroupfs_fd = -1; |
f2b68789 | 451 | m->idle_pipe[0] = m->idle_pipe[1] = -1; |
80876c20 | 452 | |
8742514c LP |
453 | watch_init(&m->signal_watch); |
454 | watch_init(&m->mount_watch); | |
455 | watch_init(&m->swap_watch); | |
456 | watch_init(&m->udev_watch); | |
457 | watch_init(&m->time_change_watch); | |
03b717a3 | 458 | watch_init(&m->jobs_in_progress_watch); |
8742514c LP |
459 | |
460 | m->epoll_fd = m->dev_autofs_fd = -1; | |
ea430986 | 461 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 462 | |
71ecc858 LP |
463 | m->environment = strv_copy(environ); |
464 | if (!m->environment) | |
1137a57c LP |
465 | goto fail; |
466 | ||
71ecc858 LP |
467 | manager_strip_environment(m); |
468 | ||
87f0e418 | 469 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
470 | goto fail; |
471 | ||
472 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
473 | goto fail; | |
474 | ||
9152c765 LP |
475 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
476 | goto fail; | |
477 | ||
4ad49000 LP |
478 | m->cgroup_unit = hashmap_new(string_hash_func, string_compare_func); |
479 | if (!m->cgroup_unit) | |
8e274523 LP |
480 | goto fail; |
481 | ||
05e343b7 LP |
482 | if (!(m->watch_bus = hashmap_new(string_hash_func, string_compare_func))) |
483 | goto fail; | |
484 | ||
8742514c LP |
485 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
486 | if (m->epoll_fd < 0) | |
487 | goto fail; | |
488 | ||
489 | r = manager_setup_signals(m); | |
490 | if (r < 0) | |
9152c765 LP |
491 | goto fail; |
492 | ||
8742514c LP |
493 | r = manager_setup_cgroup(m); |
494 | if (r < 0) | |
8e274523 LP |
495 | goto fail; |
496 | ||
8742514c LP |
497 | r = manager_setup_notify(m); |
498 | if (r < 0) | |
9152c765 LP |
499 | goto fail; |
500 | ||
8742514c LP |
501 | r = manager_setup_time_change(m); |
502 | if (r < 0) | |
8c47c732 LP |
503 | goto fail; |
504 | ||
f278026d | 505 | /* Try to connect to the busses, if possible. */ |
ed002560 AK |
506 | if ((running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) || |
507 | running_as == SYSTEMD_SYSTEM) { | |
508 | r = bus_init(m, running_as != SYSTEMD_SYSTEM); | |
509 | if (r < 0) | |
510 | goto fail; | |
511 | } else | |
512 | log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set..."); | |
ea430986 | 513 | |
72bc8d00 LP |
514 | m->taint_usr = dir_is_empty("/usr") > 0; |
515 | ||
8e274523 LP |
516 | *_m = m; |
517 | return 0; | |
60918275 LP |
518 | |
519 | fail: | |
520 | manager_free(m); | |
8e274523 | 521 | return r; |
60918275 LP |
522 | } |
523 | ||
23a177ef | 524 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 525 | Unit *u; |
23a177ef LP |
526 | unsigned n = 0; |
527 | ||
528 | assert(m); | |
529 | ||
595ed347 MS |
530 | while ((u = m->cleanup_queue)) { |
531 | assert(u->in_cleanup_queue); | |
23a177ef | 532 | |
595ed347 | 533 | unit_free(u); |
23a177ef LP |
534 | n++; |
535 | } | |
536 | ||
537 | return n; | |
538 | } | |
539 | ||
eced69b3 | 540 | enum { |
35b8ca3a | 541 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
542 | GC_OFFSET_UNSURE, /* No clue */ |
543 | GC_OFFSET_GOOD, /* We still need this unit */ | |
544 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
545 | _GC_OFFSET_MAX | |
546 | }; | |
547 | ||
548 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
549 | Iterator i; |
550 | Unit *other; | |
eced69b3 | 551 | bool is_bad; |
701cc384 LP |
552 | |
553 | assert(u); | |
554 | ||
ac155bb8 MS |
555 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
556 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
557 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
558 | return; |
559 | ||
ac155bb8 | 560 | if (u->in_cleanup_queue) |
701cc384 LP |
561 | goto bad; |
562 | ||
563 | if (unit_check_gc(u)) | |
564 | goto good; | |
565 | ||
ac155bb8 | 566 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
567 | |
568 | is_bad = true; | |
569 | ||
ac155bb8 | 570 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
571 | unit_gc_sweep(other, gc_marker); |
572 | ||
ac155bb8 | 573 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 574 | goto good; |
eced69b3 | 575 | |
ac155bb8 | 576 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 577 | is_bad = false; |
701cc384 LP |
578 | } |
579 | ||
eced69b3 LP |
580 | if (is_bad) |
581 | goto bad; | |
582 | ||
583 | /* We were unable to find anything out about this entry, so | |
584 | * let's investigate it later */ | |
ac155bb8 | 585 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
586 | unit_add_to_gc_queue(u); |
587 | return; | |
588 | ||
701cc384 | 589 | bad: |
eced69b3 LP |
590 | /* We definitely know that this one is not useful anymore, so |
591 | * let's mark it for deletion */ | |
ac155bb8 | 592 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 593 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
594 | return; |
595 | ||
596 | good: | |
ac155bb8 | 597 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
598 | } |
599 | ||
600 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 601 | Unit *u; |
701cc384 | 602 | unsigned n = 0; |
eced69b3 | 603 | unsigned gc_marker; |
701cc384 LP |
604 | |
605 | assert(m); | |
606 | ||
607 | if ((m->n_in_gc_queue < GC_QUEUE_ENTRIES_MAX) && | |
608 | (m->gc_queue_timestamp <= 0 || | |
609 | (m->gc_queue_timestamp + GC_QUEUE_USEC_MAX) > now(CLOCK_MONOTONIC))) | |
610 | return 0; | |
611 | ||
612 | log_debug("Running GC..."); | |
613 | ||
eced69b3 LP |
614 | m->gc_marker += _GC_OFFSET_MAX; |
615 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 616 | m->gc_marker = 1; |
701cc384 | 617 | |
eced69b3 LP |
618 | gc_marker = m->gc_marker; |
619 | ||
595ed347 MS |
620 | while ((u = m->gc_queue)) { |
621 | assert(u->in_gc_queue); | |
701cc384 | 622 | |
595ed347 | 623 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 624 | |
595ed347 MS |
625 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
626 | u->in_gc_queue = false; | |
701cc384 LP |
627 | |
628 | n++; | |
629 | ||
595ed347 MS |
630 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
631 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 632 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
633 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
634 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
635 | } |
636 | } | |
637 | ||
638 | m->n_in_gc_queue = 0; | |
639 | m->gc_queue_timestamp = 0; | |
640 | ||
641 | return n; | |
642 | } | |
643 | ||
a16e1123 | 644 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 645 | Unit *u; |
60918275 LP |
646 | |
647 | assert(m); | |
648 | ||
87f0e418 LP |
649 | while ((u = hashmap_first(m->units))) |
650 | unit_free(u); | |
964e0949 LP |
651 | |
652 | manager_dispatch_cleanup_queue(m); | |
653 | ||
654 | assert(!m->load_queue); | |
655 | assert(!m->run_queue); | |
656 | assert(!m->dbus_unit_queue); | |
657 | assert(!m->dbus_job_queue); | |
658 | assert(!m->cleanup_queue); | |
659 | assert(!m->gc_queue); | |
660 | ||
964e0949 LP |
661 | assert(hashmap_isempty(m->jobs)); |
662 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
663 | |
664 | m->n_on_console = 0; | |
665 | m->n_running_jobs = 0; | |
a16e1123 LP |
666 | } |
667 | ||
668 | void manager_free(Manager *m) { | |
669 | UnitType c; | |
c93ff2e9 | 670 | int i; |
87f0e418 | 671 | |
a16e1123 LP |
672 | assert(m); |
673 | ||
674 | manager_clear_jobs_and_units(m); | |
23a177ef | 675 | |
7824bbeb LP |
676 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
677 | if (unit_vtable[c]->shutdown) | |
678 | unit_vtable[c]->shutdown(m); | |
679 | ||
a16e1123 LP |
680 | /* If we reexecute ourselves, we keep the root cgroup |
681 | * around */ | |
c6c18be3 | 682 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 683 | |
5a1e9937 LP |
684 | manager_undo_generators(m); |
685 | ||
5e8d1c9a | 686 | bus_done(m); |
ea430986 | 687 | |
87f0e418 | 688 | hashmap_free(m->units); |
60918275 | 689 | hashmap_free(m->jobs); |
9152c765 | 690 | hashmap_free(m->watch_pids); |
05e343b7 | 691 | hashmap_free(m->watch_bus); |
9152c765 LP |
692 | |
693 | if (m->epoll_fd >= 0) | |
a16e1123 | 694 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 695 | if (m->signal_watch.fd >= 0) |
a16e1123 | 696 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
697 | if (m->notify_watch.fd >= 0) |
698 | close_nointr_nofail(m->notify_watch.fd); | |
8742514c LP |
699 | if (m->time_change_watch.fd >= 0) |
700 | close_nointr_nofail(m->time_change_watch.fd); | |
03b717a3 MS |
701 | if (m->jobs_in_progress_watch.fd >= 0) |
702 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
60918275 | 703 | |
c952c6ec LP |
704 | free(m->notify_socket); |
705 | ||
84e3543e | 706 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 707 | strv_free(m->environment); |
036643a2 | 708 | |
4ad49000 | 709 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 710 | set_free_free(m->unit_path_cache); |
33be102a | 711 | |
f2b68789 LP |
712 | close_pipe(m->idle_pipe); |
713 | ||
664f88a7 LP |
714 | free(m->switch_root); |
715 | free(m->switch_root_init); | |
716 | ||
c93ff2e9 FC |
717 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
718 | free(m->rlimit[i]); | |
719 | ||
60918275 LP |
720 | free(m); |
721 | } | |
722 | ||
a16e1123 LP |
723 | int manager_enumerate(Manager *m) { |
724 | int r = 0, q; | |
f50e0a01 | 725 | UnitType c; |
f50e0a01 LP |
726 | |
727 | assert(m); | |
728 | ||
a16e1123 LP |
729 | /* Let's ask every type to load all units from disk/kernel |
730 | * that it might know */ | |
f50e0a01 LP |
731 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
732 | if (unit_vtable[c]->enumerate) | |
a16e1123 LP |
733 | if ((q = unit_vtable[c]->enumerate(m)) < 0) |
734 | r = q; | |
f50e0a01 LP |
735 | |
736 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
737 | return r; |
738 | } | |
739 | ||
740 | int manager_coldplug(Manager *m) { | |
741 | int r = 0, q; | |
742 | Iterator i; | |
743 | Unit *u; | |
744 | char *k; | |
745 | ||
746 | assert(m); | |
f50e0a01 LP |
747 | |
748 | /* Then, let's set up their initial state. */ | |
749 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
750 | ||
751 | /* ignore aliases */ | |
ac155bb8 | 752 | if (u->id != k) |
f50e0a01 LP |
753 | continue; |
754 | ||
cca098b0 LP |
755 | if ((q = unit_coldplug(u)) < 0) |
756 | r = q; | |
f50e0a01 LP |
757 | } |
758 | ||
a16e1123 LP |
759 | return r; |
760 | } | |
761 | ||
fe51822e LP |
762 | static void manager_build_unit_path_cache(Manager *m) { |
763 | char **i; | |
7fd1b19b | 764 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
765 | int r; |
766 | ||
767 | assert(m); | |
768 | ||
769 | set_free_free(m->unit_path_cache); | |
770 | ||
874310b7 ZJS |
771 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
772 | if (!m->unit_path_cache) { | |
fe51822e LP |
773 | log_error("Failed to allocate unit path cache."); |
774 | return; | |
775 | } | |
776 | ||
777 | /* This simply builds a list of files we know exist, so that | |
778 | * we don't always have to go to disk */ | |
779 | ||
780 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
781 | struct dirent *de; | |
782 | ||
bd0af849 ZJS |
783 | d = opendir(*i); |
784 | if (!d) { | |
874310b7 ZJS |
785 | if (errno != ENOENT) |
786 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
787 | continue; |
788 | } | |
789 | ||
790 | while ((de = readdir(d))) { | |
791 | char *p; | |
792 | ||
793 | if (ignore_file(de->d_name)) | |
794 | continue; | |
795 | ||
b7def684 | 796 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 797 | if (!p) { |
fe51822e LP |
798 | r = -ENOMEM; |
799 | goto fail; | |
800 | } | |
801 | ||
ef42202a ZJS |
802 | r = set_consume(m->unit_path_cache, p); |
803 | if (r < 0) | |
fe51822e | 804 | goto fail; |
fe51822e LP |
805 | } |
806 | ||
807 | closedir(d); | |
808 | d = NULL; | |
809 | } | |
810 | ||
811 | return; | |
812 | ||
813 | fail: | |
814 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
815 | ||
816 | set_free_free(m->unit_path_cache); | |
817 | m->unit_path_cache = NULL; | |
fe51822e LP |
818 | } |
819 | ||
a16e1123 LP |
820 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
821 | int r, q; | |
822 | ||
823 | assert(m); | |
824 | ||
518d10e9 | 825 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 826 | manager_run_generators(m); |
518d10e9 | 827 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 828 | |
07719a21 LP |
829 | r = lookup_paths_init( |
830 | &m->lookup_paths, m->running_as, true, | |
831 | m->generator_unit_path, | |
832 | m->generator_unit_path_early, | |
833 | m->generator_unit_path_late); | |
834 | if (r < 0) | |
835 | return r; | |
836 | ||
fe51822e LP |
837 | manager_build_unit_path_cache(m); |
838 | ||
9f611ad8 LP |
839 | /* If we will deserialize make sure that during enumeration |
840 | * this is already known, so we increase the counter here | |
841 | * already */ | |
842 | if (serialization) | |
a7556052 | 843 | m->n_reloading ++; |
9f611ad8 | 844 | |
a16e1123 | 845 | /* First, enumerate what we can from all config files */ |
d9acfb71 | 846 | dual_timestamp_get(&m->unitsload_start_timestamp); |
a16e1123 | 847 | r = manager_enumerate(m); |
d9acfb71 | 848 | dual_timestamp_get(&m->unitsload_finish_timestamp); |
a16e1123 LP |
849 | |
850 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
851 | if (serialization) { |
852 | q = manager_deserialize(m, serialization, fds); | |
853 | if (q < 0) | |
a16e1123 | 854 | r = q; |
07719a21 | 855 | } |
a16e1123 | 856 | |
01e10de3 LP |
857 | /* Any fds left? Find some unit which wants them. This is |
858 | * useful to allow container managers to pass some file | |
859 | * descriptors to us pre-initialized. This enables | |
860 | * socket-based activation of entire containers. */ | |
861 | if (fdset_size(fds) > 0) { | |
862 | q = manager_distribute_fds(m, fds); | |
863 | if (q < 0) | |
864 | r = q; | |
865 | } | |
866 | ||
a16e1123 | 867 | /* Third, fire things up! */ |
07719a21 LP |
868 | q = manager_coldplug(m); |
869 | if (q < 0) | |
a16e1123 LP |
870 | r = q; |
871 | ||
9f611ad8 | 872 | if (serialization) { |
a7556052 LP |
873 | assert(m->n_reloading > 0); |
874 | m->n_reloading --; | |
9f611ad8 LP |
875 | } |
876 | ||
a16e1123 | 877 | return r; |
f50e0a01 LP |
878 | } |
879 | ||
398ef8ba | 880 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 881 | int r; |
7527cb52 | 882 | Transaction *tr; |
e5b5ae50 LP |
883 | |
884 | assert(m); | |
885 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 886 | assert(unit); |
e5b5ae50 | 887 | assert(mode < _JOB_MODE_MAX); |
60918275 | 888 | |
398ef8ba LP |
889 | if (mode == JOB_ISOLATE && type != JOB_START) { |
890 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 891 | return -EINVAL; |
398ef8ba | 892 | } |
c497c7a9 | 893 | |
ac155bb8 | 894 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
895 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
896 | return -EPERM; | |
897 | } | |
898 | ||
66870f90 ZJS |
899 | log_debug_unit(unit->id, |
900 | "Trying to enqueue job %s/%s/%s", unit->id, | |
901 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 902 | |
e0209d83 MS |
903 | job_type_collapse(&type, unit); |
904 | ||
23ade460 | 905 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
906 | if (!tr) |
907 | return -ENOMEM; | |
11dd41ce | 908 | |
7527cb52 MS |
909 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
910 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 911 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
912 | if (r < 0) |
913 | goto tr_abort; | |
c497c7a9 | 914 | |
7527cb52 MS |
915 | if (mode == JOB_ISOLATE) { |
916 | r = transaction_add_isolate_jobs(tr, m); | |
917 | if (r < 0) | |
918 | goto tr_abort; | |
919 | } | |
920 | ||
921 | r = transaction_activate(tr, m, mode, e); | |
922 | if (r < 0) | |
923 | goto tr_abort; | |
e5b5ae50 | 924 | |
66870f90 ZJS |
925 | log_debug_unit(unit->id, |
926 | "Enqueued job %s/%s as %u", unit->id, | |
927 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 928 | |
e5b5ae50 | 929 | if (_ret) |
b94fbd30 | 930 | *_ret = tr->anchor_job; |
60918275 | 931 | |
7527cb52 | 932 | transaction_free(tr); |
e5b5ae50 | 933 | return 0; |
7527cb52 MS |
934 | |
935 | tr_abort: | |
936 | transaction_abort(tr); | |
937 | transaction_free(tr); | |
938 | return r; | |
e5b5ae50 | 939 | } |
60918275 | 940 | |
398ef8ba | 941 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
942 | Unit *unit; |
943 | int r; | |
944 | ||
945 | assert(m); | |
946 | assert(type < _JOB_TYPE_MAX); | |
947 | assert(name); | |
948 | assert(mode < _JOB_MODE_MAX); | |
949 | ||
c3090674 LP |
950 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
951 | if (r < 0) | |
28247076 LP |
952 | return r; |
953 | ||
398ef8ba | 954 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
955 | } |
956 | ||
60918275 LP |
957 | Job *manager_get_job(Manager *m, uint32_t id) { |
958 | assert(m); | |
959 | ||
960 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
961 | } | |
962 | ||
87f0e418 | 963 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
964 | assert(m); |
965 | assert(name); | |
966 | ||
87f0e418 | 967 | return hashmap_get(m->units, name); |
60918275 LP |
968 | } |
969 | ||
c1e1601e | 970 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 971 | Unit *u; |
c1e1601e | 972 | unsigned n = 0; |
60918275 LP |
973 | |
974 | assert(m); | |
975 | ||
223dabab LP |
976 | /* Make sure we are not run recursively */ |
977 | if (m->dispatching_load_queue) | |
c1e1601e | 978 | return 0; |
223dabab LP |
979 | |
980 | m->dispatching_load_queue = true; | |
981 | ||
87f0e418 | 982 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
983 | * tries to load its data until the queue is empty */ |
984 | ||
595ed347 MS |
985 | while ((u = m->load_queue)) { |
986 | assert(u->in_load_queue); | |
034c6ed7 | 987 | |
595ed347 | 988 | unit_load(u); |
c1e1601e | 989 | n++; |
60918275 LP |
990 | } |
991 | ||
223dabab | 992 | m->dispatching_load_queue = false; |
c1e1601e | 993 | return n; |
60918275 LP |
994 | } |
995 | ||
c2756a68 LP |
996 | int manager_load_unit_prepare( |
997 | Manager *m, | |
998 | const char *name, | |
999 | const char *path, | |
1000 | DBusError *e, | |
1001 | Unit **_ret) { | |
1002 | ||
87f0e418 | 1003 | Unit *ret; |
7d17cfbc | 1004 | UnitType t; |
60918275 LP |
1005 | int r; |
1006 | ||
1007 | assert(m); | |
9e2f7c11 | 1008 | assert(name || path); |
60918275 | 1009 | |
db06e3b6 LP |
1010 | /* This will prepare the unit for loading, but not actually |
1011 | * load anything from disk. */ | |
0301abf4 | 1012 | |
398ef8ba LP |
1013 | if (path && !is_path(path)) { |
1014 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 1015 | return -EINVAL; |
398ef8ba | 1016 | } |
9e2f7c11 LP |
1017 | |
1018 | if (!name) | |
9eb977db | 1019 | name = path_get_file_name(path); |
9e2f7c11 | 1020 | |
7d17cfbc MS |
1021 | t = unit_name_to_type(name); |
1022 | ||
5f739699 | 1023 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 1024 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 1025 | return -EINVAL; |
398ef8ba | 1026 | } |
60918275 | 1027 | |
7d17cfbc MS |
1028 | ret = manager_get_unit(m, name); |
1029 | if (ret) { | |
034c6ed7 | 1030 | *_ret = ret; |
413d6313 | 1031 | return 1; |
034c6ed7 | 1032 | } |
60918275 | 1033 | |
7d17cfbc MS |
1034 | ret = unit_new(m, unit_vtable[t]->object_size); |
1035 | if (!ret) | |
60918275 LP |
1036 | return -ENOMEM; |
1037 | ||
7d17cfbc | 1038 | if (path) { |
ac155bb8 MS |
1039 | ret->fragment_path = strdup(path); |
1040 | if (!ret->fragment_path) { | |
0301abf4 LP |
1041 | unit_free(ret); |
1042 | return -ENOMEM; | |
1043 | } | |
7d17cfbc | 1044 | } |
0301abf4 | 1045 | |
1058cbf2 ZJS |
1046 | r = unit_add_name(ret, name); |
1047 | if (r < 0) { | |
87f0e418 | 1048 | unit_free(ret); |
1ffba6fe | 1049 | return r; |
60918275 LP |
1050 | } |
1051 | ||
87f0e418 | 1052 | unit_add_to_load_queue(ret); |
c1e1601e | 1053 | unit_add_to_dbus_queue(ret); |
949061f0 | 1054 | unit_add_to_gc_queue(ret); |
c1e1601e | 1055 | |
db06e3b6 LP |
1056 | if (_ret) |
1057 | *_ret = ret; | |
1058 | ||
1059 | return 0; | |
1060 | } | |
1061 | ||
c2756a68 LP |
1062 | int manager_load_unit( |
1063 | Manager *m, | |
1064 | const char *name, | |
1065 | const char *path, | |
1066 | DBusError *e, | |
1067 | Unit **_ret) { | |
1068 | ||
db06e3b6 LP |
1069 | int r; |
1070 | ||
1071 | assert(m); | |
1072 | ||
1073 | /* This will load the service information files, but not actually | |
1074 | * start any services or anything. */ | |
1075 | ||
c3090674 LP |
1076 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1077 | if (r != 0) | |
db06e3b6 LP |
1078 | return r; |
1079 | ||
f50e0a01 | 1080 | manager_dispatch_load_queue(m); |
60918275 | 1081 | |
9e2f7c11 | 1082 | if (_ret) |
413d6313 | 1083 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1084 | |
60918275 LP |
1085 | return 0; |
1086 | } | |
a66d02c3 | 1087 | |
cea8e32e | 1088 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1089 | Iterator i; |
a66d02c3 LP |
1090 | Job *j; |
1091 | ||
1092 | assert(s); | |
1093 | assert(f); | |
1094 | ||
034c6ed7 | 1095 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1096 | job_dump(j, f, prefix); |
a66d02c3 LP |
1097 | } |
1098 | ||
87f0e418 | 1099 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1100 | Iterator i; |
87f0e418 | 1101 | Unit *u; |
11dd41ce | 1102 | const char *t; |
a66d02c3 LP |
1103 | |
1104 | assert(s); | |
1105 | assert(f); | |
1106 | ||
87f0e418 | 1107 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1108 | if (u->id == t) |
87f0e418 | 1109 | unit_dump(u, f, prefix); |
a66d02c3 | 1110 | } |
7fad411c LP |
1111 | |
1112 | void manager_clear_jobs(Manager *m) { | |
1113 | Job *j; | |
1114 | ||
1115 | assert(m); | |
1116 | ||
7fad411c | 1117 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1118 | /* No need to recurse. We're cancelling all jobs. */ |
1119 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1120 | } |
83c60c9f | 1121 | |
c1e1601e | 1122 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1123 | Job *j; |
c1e1601e | 1124 | unsigned n = 0; |
83c60c9f | 1125 | |
034c6ed7 | 1126 | if (m->dispatching_run_queue) |
c1e1601e | 1127 | return 0; |
034c6ed7 LP |
1128 | |
1129 | m->dispatching_run_queue = true; | |
9152c765 | 1130 | |
034c6ed7 | 1131 | while ((j = m->run_queue)) { |
ac1135be | 1132 | assert(j->installed); |
034c6ed7 LP |
1133 | assert(j->in_run_queue); |
1134 | ||
1135 | job_run_and_invalidate(j); | |
c1e1601e | 1136 | n++; |
9152c765 | 1137 | } |
034c6ed7 LP |
1138 | |
1139 | m->dispatching_run_queue = false; | |
03b717a3 | 1140 | |
a0b64226 | 1141 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1142 | manager_watch_jobs_in_progress(m); |
1143 | ||
c1e1601e LP |
1144 | return n; |
1145 | } | |
1146 | ||
1147 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
1148 | Job *j; | |
595ed347 | 1149 | Unit *u; |
c1e1601e LP |
1150 | unsigned n = 0; |
1151 | ||
1152 | assert(m); | |
1153 | ||
1154 | if (m->dispatching_dbus_queue) | |
1155 | return 0; | |
1156 | ||
1157 | m->dispatching_dbus_queue = true; | |
1158 | ||
595ed347 MS |
1159 | while ((u = m->dbus_unit_queue)) { |
1160 | assert(u->in_dbus_queue); | |
c1e1601e | 1161 | |
595ed347 | 1162 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1163 | n++; |
1164 | } | |
1165 | ||
1166 | while ((j = m->dbus_job_queue)) { | |
1167 | assert(j->in_dbus_queue); | |
1168 | ||
1169 | bus_job_send_change_signal(j); | |
1170 | n++; | |
1171 | } | |
1172 | ||
1173 | m->dispatching_dbus_queue = false; | |
1174 | return n; | |
9152c765 LP |
1175 | } |
1176 | ||
8c47c732 LP |
1177 | static int manager_process_notify_fd(Manager *m) { |
1178 | ssize_t n; | |
1179 | ||
1180 | assert(m); | |
1181 | ||
1182 | for (;;) { | |
1183 | char buf[4096]; | |
b92bea5d ZJS |
1184 | struct iovec iovec = { |
1185 | .iov_base = buf, | |
1186 | .iov_len = sizeof(buf)-1, | |
1187 | }; | |
1188 | ||
8c47c732 LP |
1189 | union { |
1190 | struct cmsghdr cmsghdr; | |
1191 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1192 | } control = {}; |
1193 | ||
1194 | struct msghdr msghdr = { | |
1195 | .msg_iov = &iovec, | |
1196 | .msg_iovlen = 1, | |
1197 | .msg_control = &control, | |
1198 | .msg_controllen = sizeof(control), | |
1199 | }; | |
1200 | struct ucred *ucred; | |
8c47c732 | 1201 | Unit *u; |
7fd1b19b | 1202 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1203 | |
bd0af849 ZJS |
1204 | n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT); |
1205 | if (n <= 0) { | |
b92bea5d | 1206 | if (n == 0) |
8c47c732 LP |
1207 | return -EIO; |
1208 | ||
f6144808 | 1209 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1210 | break; |
1211 | ||
1212 | return -errno; | |
1213 | } | |
1214 | ||
1215 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1216 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1217 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1218 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1219 | log_warning("Received notify message without credentials. Ignoring."); | |
1220 | continue; | |
1221 | } | |
1222 | ||
1223 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1224 | ||
bd0af849 ZJS |
1225 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1226 | if (!u) { | |
4ad49000 | 1227 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1228 | if (!u) { |
7989e1f2 | 1229 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1230 | continue; |
1231 | } | |
bd0af849 | 1232 | } |
8c47c732 | 1233 | |
8c40acf7 LP |
1234 | assert((size_t) n < sizeof(buf)); |
1235 | buf[n] = 0; | |
bd0af849 ZJS |
1236 | tags = strv_split(buf, "\n\r"); |
1237 | if (!tags) | |
1238 | return log_oom(); | |
8c47c732 | 1239 | |
66870f90 | 1240 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1241 | |
1242 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1243 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1244 | } |
1245 | ||
1246 | return 0; | |
1247 | } | |
1248 | ||
034c6ed7 | 1249 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1250 | assert(m); |
1251 | ||
1252 | for (;;) { | |
b92bea5d | 1253 | siginfo_t si = {}; |
87f0e418 | 1254 | Unit *u; |
8c47c732 | 1255 | int r; |
9152c765 | 1256 | |
4112df16 LP |
1257 | /* First we call waitd() for a PID and do not reap the |
1258 | * zombie. That way we can still access /proc/$PID for | |
1259 | * it while it is a zombie. */ | |
1260 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1261 | |
1262 | if (errno == ECHILD) | |
1263 | break; | |
1264 | ||
4112df16 LP |
1265 | if (errno == EINTR) |
1266 | continue; | |
1267 | ||
9152c765 | 1268 | return -errno; |
acbb0225 | 1269 | } |
9152c765 | 1270 | |
4112df16 | 1271 | if (si.si_pid <= 0) |
9152c765 LP |
1272 | break; |
1273 | ||
15d5d9d9 | 1274 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1275 | _cleanup_free_ char *name = NULL; |
4112df16 | 1276 | |
87d2c1ff | 1277 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1278 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1279 | } |
1280 | ||
8c47c732 LP |
1281 | /* Let's flush any message the dying child might still |
1282 | * have queued for us. This ensures that the process | |
1283 | * still exists in /proc so that we can figure out | |
1284 | * which cgroup and hence unit it belongs to. */ | |
bd0af849 ZJS |
1285 | r = manager_process_notify_fd(m); |
1286 | if (r < 0) | |
8c47c732 LP |
1287 | return r; |
1288 | ||
1289 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1290 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1291 | if (!u) | |
4ad49000 | 1292 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1293 | |
4112df16 LP |
1294 | /* And now, we actually reap the zombie. */ |
1295 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1296 | if (errno == EINTR) | |
1297 | continue; | |
1298 | ||
1299 | return -errno; | |
1300 | } | |
1301 | ||
034c6ed7 LP |
1302 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1303 | continue; | |
1304 | ||
bb00e604 LP |
1305 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1306 | (long unsigned) si.si_pid, | |
4112df16 LP |
1307 | sigchld_code_to_string(si.si_code), |
1308 | si.si_status, | |
d06dacd0 LP |
1309 | strna(si.si_code == CLD_EXITED |
1310 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1311 | : signal_to_string(si.si_status))); | |
acbb0225 | 1312 | |
8c47c732 | 1313 | if (!u) |
9152c765 LP |
1314 | continue; |
1315 | ||
66870f90 ZJS |
1316 | log_debug_unit(u->id, |
1317 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1318 | |
c6c18be3 | 1319 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1320 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1321 | } |
1322 | ||
1323 | return 0; | |
1324 | } | |
1325 | ||
7d793605 | 1326 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1327 | int r; |
398ef8ba LP |
1328 | DBusError error; |
1329 | ||
1330 | dbus_error_init(&error); | |
1331 | ||
66870f90 | 1332 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1333 | |
bd0af849 ZJS |
1334 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1335 | if (r < 0) | |
66870f90 ZJS |
1336 | log_error_unit(name, |
1337 | "Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1338 | |
398ef8ba | 1339 | dbus_error_free(&error); |
a1b256b0 LP |
1340 | |
1341 | return r; | |
28247076 LP |
1342 | } |
1343 | ||
a16e1123 | 1344 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1345 | ssize_t n; |
1346 | struct signalfd_siginfo sfsi; | |
1347 | bool sigchld = false; | |
1348 | ||
1349 | assert(m); | |
1350 | ||
1351 | for (;;) { | |
57cb4adf LP |
1352 | n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi)); |
1353 | if (n != sizeof(sfsi)) { | |
9152c765 LP |
1354 | |
1355 | if (n >= 0) | |
1356 | return -EIO; | |
1357 | ||
63090775 | 1358 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1359 | break; |
9152c765 LP |
1360 | |
1361 | return -errno; | |
1362 | } | |
1363 | ||
67370238 LP |
1364 | if (sfsi.ssi_pid > 0) { |
1365 | char *p = NULL; | |
1366 | ||
87d2c1ff | 1367 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1368 | |
67370238 | 1369 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1370 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1371 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1372 | free(p); | |
1373 | } else | |
4e240ab0 | 1374 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1375 | |
b9cd2ec1 LP |
1376 | switch (sfsi.ssi_signo) { |
1377 | ||
4112df16 | 1378 | case SIGCHLD: |
9152c765 | 1379 | sigchld = true; |
b9cd2ec1 LP |
1380 | break; |
1381 | ||
6632c602 | 1382 | case SIGTERM: |
67445f4e | 1383 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1384 | /* This is for compatibility with the |
1385 | * original sysvinit */ | |
e11dc4a2 | 1386 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1387 | break; |
1388 | } | |
84e9af1e | 1389 | |
a1b256b0 | 1390 | /* Fall through */ |
e11dc4a2 LP |
1391 | |
1392 | case SIGINT: | |
67445f4e | 1393 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1394 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1395 | break; |
1396 | } | |
1397 | ||
a1b256b0 | 1398 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1399 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1400 | m->exit_code = MANAGER_EXIT; |
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | break; | |
84e9af1e | 1405 | |
28247076 | 1406 | case SIGWINCH: |
67445f4e | 1407 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1408 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1409 | |
28247076 LP |
1410 | /* This is a nop on non-init */ |
1411 | break; | |
84e9af1e | 1412 | |
28247076 | 1413 | case SIGPWR: |
67445f4e | 1414 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1415 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1416 | |
28247076 | 1417 | /* This is a nop on non-init */ |
84e9af1e | 1418 | break; |
6632c602 | 1419 | |
1005d14f | 1420 | case SIGUSR1: { |
57ee42ce LP |
1421 | Unit *u; |
1422 | ||
1423 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1424 | ||
1425 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1426 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1427 | bus_init(m, true); |
57ee42ce LP |
1428 | } |
1429 | ||
1430 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1431 | log_info("Loading D-Bus service..."); | |
7d793605 | 1432 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1433 | } |
1434 | ||
1435 | break; | |
1436 | } | |
1437 | ||
2149e37c LP |
1438 | case SIGUSR2: { |
1439 | FILE *f; | |
1440 | char *dump = NULL; | |
1441 | size_t size; | |
1442 | ||
1443 | if (!(f = open_memstream(&dump, &size))) { | |
1444 | log_warning("Failed to allocate memory stream."); | |
1445 | break; | |
1446 | } | |
1447 | ||
1448 | manager_dump_units(m, f, "\t"); | |
1449 | manager_dump_jobs(m, f, "\t"); | |
1450 | ||
1451 | if (ferror(f)) { | |
1452 | fclose(f); | |
1453 | free(dump); | |
1454 | log_warning("Failed to write status stream"); | |
1455 | break; | |
1456 | } | |
1457 | ||
1458 | fclose(f); | |
1459 | log_dump(LOG_INFO, dump); | |
1460 | free(dump); | |
1461 | ||
1005d14f | 1462 | break; |
2149e37c | 1463 | } |
1005d14f | 1464 | |
a16e1123 LP |
1465 | case SIGHUP: |
1466 | m->exit_code = MANAGER_RELOAD; | |
1467 | break; | |
1468 | ||
7d793605 | 1469 | default: { |
253ee27a | 1470 | |
0003d1ab LP |
1471 | /* Starting SIGRTMIN+0 */ |
1472 | static const char * const target_table[] = { | |
7d793605 LP |
1473 | [0] = SPECIAL_DEFAULT_TARGET, |
1474 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1475 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1476 | [3] = SPECIAL_HALT_TARGET, |
1477 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1478 | [5] = SPECIAL_REBOOT_TARGET, |
1479 | [6] = SPECIAL_KEXEC_TARGET | |
1480 | }; | |
1481 | ||
1482 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1483 | static const ManagerExitCode code_table[] = { | |
1484 | [0] = MANAGER_HALT, | |
1485 | [1] = MANAGER_POWEROFF, | |
1486 | [2] = MANAGER_REBOOT, | |
1487 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1488 | }; |
1489 | ||
1490 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1491 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1492 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1493 | manager_start_target(m, target_table[idx], | |
1494 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1495 | break; |
1496 | } | |
1497 | ||
0003d1ab LP |
1498 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1499 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1500 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1501 | break; | |
1502 | } | |
1503 | ||
0658666b LP |
1504 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1505 | ||
1506 | case 20: | |
1507 | log_debug("Enabling showing of status."); | |
27d340c7 | 1508 | manager_set_show_status(m, true); |
0658666b LP |
1509 | break; |
1510 | ||
1511 | case 21: | |
1512 | log_debug("Disabling showing of status."); | |
27d340c7 | 1513 | manager_set_show_status(m, false); |
0658666b LP |
1514 | break; |
1515 | ||
253ee27a LP |
1516 | case 22: |
1517 | log_set_max_level(LOG_DEBUG); | |
1518 | log_notice("Setting log level to debug."); | |
1519 | break; | |
1520 | ||
1521 | case 23: | |
1522 | log_set_max_level(LOG_INFO); | |
1523 | log_notice("Setting log level to info."); | |
1524 | break; | |
1525 | ||
600b704e LP |
1526 | case 24: |
1527 | if (m->running_as == SYSTEMD_USER) { | |
1528 | m->exit_code = MANAGER_EXIT; | |
1529 | return 0; | |
1530 | } | |
1531 | ||
1532 | /* This is a nop on init */ | |
1533 | break; | |
1534 | ||
4cfa2c99 LP |
1535 | case 26: |
1536 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1537 | log_notice("Setting log target to journal-or-kmsg."); | |
1538 | break; | |
1539 | ||
253ee27a LP |
1540 | case 27: |
1541 | log_set_target(LOG_TARGET_CONSOLE); | |
1542 | log_notice("Setting log target to console."); | |
1543 | break; | |
1544 | ||
1545 | case 28: | |
1546 | log_set_target(LOG_TARGET_KMSG); | |
1547 | log_notice("Setting log target to kmsg."); | |
1548 | break; | |
1549 | ||
1550 | case 29: | |
1551 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1552 | log_notice("Setting log target to syslog-or-kmsg."); | |
1553 | break; | |
1554 | ||
0658666b | 1555 | default: |
4e240ab0 | 1556 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1557 | } |
b9cd2ec1 | 1558 | } |
7d793605 | 1559 | } |
9152c765 LP |
1560 | } |
1561 | ||
1562 | if (sigchld) | |
034c6ed7 LP |
1563 | return manager_dispatch_sigchld(m); |
1564 | ||
1565 | return 0; | |
1566 | } | |
1567 | ||
a16e1123 | 1568 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1569 | int r; |
acbb0225 | 1570 | Watch *w; |
034c6ed7 LP |
1571 | |
1572 | assert(m); | |
1573 | assert(ev); | |
1574 | ||
3df5bf61 | 1575 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1576 | |
40dde66f LP |
1577 | if (w->type == WATCH_INVALID) |
1578 | return 0; | |
1579 | ||
acbb0225 | 1580 | switch (w->type) { |
034c6ed7 | 1581 | |
ef734fd6 | 1582 | case WATCH_SIGNAL: |
034c6ed7 | 1583 | |
acbb0225 | 1584 | /* An incoming signal? */ |
f94ea366 | 1585 | if (ev->events != EPOLLIN) |
acbb0225 | 1586 | return -EINVAL; |
034c6ed7 | 1587 | |
a16e1123 | 1588 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1589 | return r; |
034c6ed7 | 1590 | |
acbb0225 | 1591 | break; |
034c6ed7 | 1592 | |
8c47c732 LP |
1593 | case WATCH_NOTIFY: |
1594 | ||
1595 | /* An incoming daemon notification event? */ | |
1596 | if (ev->events != EPOLLIN) | |
1597 | return -EINVAL; | |
1598 | ||
1599 | if ((r = manager_process_notify_fd(m)) < 0) | |
1600 | return r; | |
1601 | ||
1602 | break; | |
1603 | ||
acbb0225 | 1604 | case WATCH_FD: |
034c6ed7 | 1605 | |
acbb0225 | 1606 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1607 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1608 | break; |
034c6ed7 | 1609 | |
faf919f1 LP |
1610 | case WATCH_UNIT_TIMER: |
1611 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1612 | uint64_t v; |
1613 | ssize_t k; | |
034c6ed7 | 1614 | |
acbb0225 | 1615 | /* Some timer event, to be dispatched to the units */ |
68b29a9f LP |
1616 | k = read(w->fd, &v, sizeof(v)); |
1617 | if (k != sizeof(v)) { | |
034c6ed7 | 1618 | |
acbb0225 LP |
1619 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1620 | break; | |
034c6ed7 | 1621 | |
8742514c | 1622 | log_error("Failed to read timer event counter: %s", k < 0 ? strerror(-k) : "Short read"); |
acbb0225 | 1623 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1624 | } |
1625 | ||
faf919f1 LP |
1626 | if (w->type == WATCH_UNIT_TIMER) |
1627 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1628 | else | |
1629 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1630 | break; |
1631 | } | |
1632 | ||
ef734fd6 LP |
1633 | case WATCH_MOUNT: |
1634 | /* Some mount table change, intended for the mount subsystem */ | |
1635 | mount_fd_event(m, ev->events); | |
1636 | break; | |
1637 | ||
4e434314 LP |
1638 | case WATCH_SWAP: |
1639 | /* Some swap table change, intended for the swap subsystem */ | |
1640 | swap_fd_event(m, ev->events); | |
1641 | break; | |
1642 | ||
f94ea366 LP |
1643 | case WATCH_UDEV: |
1644 | /* Some notification from udev, intended for the device subsystem */ | |
1645 | device_fd_event(m, ev->events); | |
1646 | break; | |
1647 | ||
ea430986 LP |
1648 | case WATCH_DBUS_WATCH: |
1649 | bus_watch_event(m, w, ev->events); | |
1650 | break; | |
1651 | ||
1652 | case WATCH_DBUS_TIMEOUT: | |
1653 | bus_timeout_event(m, w, ev->events); | |
1654 | break; | |
1655 | ||
8742514c LP |
1656 | case WATCH_TIME_CHANGE: { |
1657 | Unit *u; | |
1658 | Iterator i; | |
1659 | ||
1660 | log_struct(LOG_INFO, | |
1661 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1662 | "MESSAGE=Time has been changed", | |
1663 | NULL); | |
1664 | ||
1665 | /* Restart the watch */ | |
f1324eaa ES |
1666 | epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->time_change_watch.fd, |
1667 | NULL); | |
8742514c LP |
1668 | close_nointr_nofail(m->time_change_watch.fd); |
1669 | watch_init(&m->time_change_watch); | |
1670 | manager_setup_time_change(m); | |
1671 | ||
1672 | HASHMAP_FOREACH(u, m->units, i) { | |
1673 | if (UNIT_VTABLE(u)->time_change) | |
1674 | UNIT_VTABLE(u)->time_change(u); | |
1675 | } | |
1676 | ||
1677 | break; | |
1678 | } | |
1679 | ||
03b717a3 MS |
1680 | case WATCH_JOBS_IN_PROGRESS: { |
1681 | uint64_t v; | |
1682 | ||
1683 | /* not interested in the data */ | |
1684 | read(w->fd, &v, sizeof(v)); | |
1685 | ||
1686 | manager_print_jobs_in_progress(m); | |
1687 | break; | |
1688 | } | |
1689 | ||
acbb0225 | 1690 | default: |
c5fd1e57 | 1691 | log_error("event type=%i", w->type); |
acbb0225 | 1692 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1693 | } |
9152c765 LP |
1694 | |
1695 | return 0; | |
1696 | } | |
1697 | ||
1698 | int manager_loop(Manager *m) { | |
1699 | int r; | |
9152c765 | 1700 | |
fac9f8df | 1701 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1702 | |
9152c765 | 1703 | assert(m); |
a16e1123 | 1704 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1705 | |
fe51822e LP |
1706 | /* Release the path cache */ |
1707 | set_free_free(m->unit_path_cache); | |
1708 | m->unit_path_cache = NULL; | |
1709 | ||
b0c918b9 LP |
1710 | manager_check_finished(m); |
1711 | ||
a4312405 LP |
1712 | /* There might still be some zombies hanging around from |
1713 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1714 | r = manager_dispatch_sigchld(m); |
1715 | if (r < 0) | |
a4312405 LP |
1716 | return r; |
1717 | ||
a16e1123 | 1718 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1719 | struct epoll_event event; |
1720 | int n; | |
c757a65b | 1721 | int wait_msec = -1; |
9152c765 | 1722 | |
67445f4e | 1723 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1724 | watchdog_ping(); |
1725 | ||
ea430986 LP |
1726 | if (!ratelimit_test(&rl)) { |
1727 | /* Yay, something is going seriously wrong, pause a little */ | |
1728 | log_warning("Looping too fast. Throttling execution a little."); | |
1729 | sleep(1); | |
e96d6be7 | 1730 | continue; |
ea430986 LP |
1731 | } |
1732 | ||
37a8e683 | 1733 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1734 | continue; |
1735 | ||
37a8e683 | 1736 | if (manager_dispatch_run_queue(m) > 0) |
701cc384 LP |
1737 | continue; |
1738 | ||
37a8e683 | 1739 | if (bus_dispatch(m) > 0) |
c1e1601e | 1740 | continue; |
034c6ed7 | 1741 | |
37a8e683 | 1742 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e LP |
1743 | continue; |
1744 | ||
37a8e683 | 1745 | if (manager_dispatch_gc_queue(m) > 0) |
c1e1601e LP |
1746 | continue; |
1747 | ||
4ad49000 LP |
1748 | if (manager_dispatch_cgroup_queue(m) > 0) |
1749 | continue; | |
1750 | ||
c1e1601e | 1751 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1752 | continue; |
ea430986 | 1753 | |
e04aad61 LP |
1754 | if (swap_dispatch_reload(m) > 0) |
1755 | continue; | |
1756 | ||
c757a65b | 1757 | /* Sleep for half the watchdog time */ |
67445f4e | 1758 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
c757a65b LP |
1759 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); |
1760 | if (wait_msec <= 0) | |
1761 | wait_msec = 1; | |
1762 | } else | |
1763 | wait_msec = -1; | |
1764 | ||
e96d6be7 LP |
1765 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1766 | if (n < 0) { | |
9152c765 | 1767 | |
6089f4a9 | 1768 | if (errno == EINTR) |
9152c765 LP |
1769 | continue; |
1770 | ||
1771 | return -errno; | |
e96d6be7 LP |
1772 | } else if (n == 0) |
1773 | continue; | |
9152c765 | 1774 | |
957ca890 | 1775 | assert(n == 1); |
b9cd2ec1 | 1776 | |
e96d6be7 LP |
1777 | r = process_event(m, &event); |
1778 | if (r < 0) | |
957ca890 | 1779 | return r; |
a16e1123 | 1780 | } |
957ca890 | 1781 | |
a16e1123 | 1782 | return m->exit_code; |
83c60c9f | 1783 | } |
ea430986 | 1784 | |
80fbf05e | 1785 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ede3a796 | 1786 | _cleanup_free_ char *n = NULL; |
ea430986 | 1787 | Unit *u; |
80fbf05e | 1788 | int r; |
ea430986 LP |
1789 | |
1790 | assert(m); | |
1791 | assert(s); | |
1792 | assert(_u); | |
1793 | ||
ede3a796 LP |
1794 | r = unit_name_from_dbus_path(s, &n); |
1795 | if (r < 0) | |
1796 | return r; | |
ea430986 | 1797 | |
80fbf05e | 1798 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1799 | if (r < 0) |
1800 | return r; | |
ea430986 LP |
1801 | |
1802 | *_u = u; | |
1803 | ||
1804 | return 0; | |
1805 | } | |
86fbf370 LP |
1806 | |
1807 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1808 | Job *j; | |
1809 | unsigned id; | |
1810 | int r; | |
1811 | ||
1812 | assert(m); | |
1813 | assert(s); | |
1814 | assert(_j); | |
1815 | ||
1816 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1817 | return -EINVAL; | |
1818 | ||
8742514c LP |
1819 | r = safe_atou(s + 30, &id); |
1820 | if (r < 0) | |
86fbf370 LP |
1821 | return r; |
1822 | ||
8742514c LP |
1823 | j = manager_get_job(m, id); |
1824 | if (!j) | |
86fbf370 LP |
1825 | return -ENOENT; |
1826 | ||
1827 | *_j = j; | |
1828 | ||
1829 | return 0; | |
1830 | } | |
dfcd764e | 1831 | |
4927fcae | 1832 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1833 | |
4927fcae LP |
1834 | #ifdef HAVE_AUDIT |
1835 | char *p; | |
c1165f82 | 1836 | int audit_fd; |
e537352b | 1837 | |
c1165f82 LP |
1838 | audit_fd = get_audit_fd(); |
1839 | if (audit_fd < 0) | |
e537352b LP |
1840 | return; |
1841 | ||
bbd3a7ba LP |
1842 | /* Don't generate audit events if the service was already |
1843 | * started and we're just deserializing */ | |
a7556052 | 1844 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1845 | return; |
1846 | ||
67445f4e | 1847 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1848 | return; |
1849 | ||
ac155bb8 | 1850 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1851 | return; |
1852 | ||
bd0af849 ZJS |
1853 | p = unit_name_to_prefix_and_instance(u->id); |
1854 | if (!p) { | |
66870f90 ZJS |
1855 | log_error_unit(u->id, |
1856 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1857 | return; |
1858 | } | |
1859 | ||
c1165f82 | 1860 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1861 | if (errno == EPERM) { |
1862 | /* We aren't allowed to send audit messages? | |
44785992 | 1863 | * Then let's not retry again. */ |
c1165f82 | 1864 | close_audit_fd(); |
44785992 LP |
1865 | } else |
1866 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1867 | } |
e537352b | 1868 | |
4927fcae LP |
1869 | free(p); |
1870 | #endif | |
e537352b | 1871 | |
e537352b LP |
1872 | } |
1873 | ||
e983b760 LP |
1874 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1875 | int fd = -1; | |
1876 | union sockaddr_union sa; | |
1877 | int n = 0; | |
1878 | char *message = NULL; | |
e983b760 LP |
1879 | |
1880 | /* Don't generate plymouth events if the service was already | |
1881 | * started and we're just deserializing */ | |
a7556052 | 1882 | if (m->n_reloading > 0) |
e983b760 LP |
1883 | return; |
1884 | ||
67445f4e | 1885 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1886 | return; |
1887 | ||
ac155bb8 MS |
1888 | if (u->type != UNIT_SERVICE && |
1889 | u->type != UNIT_MOUNT && | |
1890 | u->type != UNIT_SWAP) | |
e983b760 LP |
1891 | return; |
1892 | ||
1893 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1894 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1895 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1896 | if (fd < 0) { | |
e983b760 LP |
1897 | log_error("socket() failed: %m"); |
1898 | return; | |
1899 | } | |
1900 | ||
1901 | zero(sa); | |
1902 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1903 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1904 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1905 | |
1906 | if (errno != EPIPE && | |
1907 | errno != EAGAIN && | |
1908 | errno != ENOENT && | |
1909 | errno != ECONNREFUSED && | |
1910 | errno != ECONNRESET && | |
1911 | errno != ECONNABORTED) | |
1912 | log_error("connect() failed: %m"); | |
1913 | ||
1914 | goto finish; | |
1915 | } | |
1916 | ||
ac155bb8 | 1917 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1918 | log_oom(); |
e983b760 LP |
1919 | goto finish; |
1920 | } | |
1921 | ||
1922 | errno = 0; | |
bd40a2d8 | 1923 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1924 | |
1925 | if (errno != EPIPE && | |
1926 | errno != EAGAIN && | |
1927 | errno != ENOENT && | |
1928 | errno != ECONNREFUSED && | |
1929 | errno != ECONNRESET && | |
1930 | errno != ECONNABORTED) | |
1931 | log_error("Failed to write Plymouth message: %m"); | |
1932 | ||
1933 | goto finish; | |
1934 | } | |
1935 | ||
1936 | finish: | |
1937 | if (fd >= 0) | |
1938 | close_nointr_nofail(fd); | |
1939 | ||
1940 | free(message); | |
1941 | } | |
1942 | ||
05e343b7 LP |
1943 | void manager_dispatch_bus_name_owner_changed( |
1944 | Manager *m, | |
1945 | const char *name, | |
1946 | const char* old_owner, | |
1947 | const char *new_owner) { | |
1948 | ||
1949 | Unit *u; | |
1950 | ||
1951 | assert(m); | |
1952 | assert(name); | |
1953 | ||
1954 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1955 | return; | |
1956 | ||
1957 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1958 | } | |
1959 | ||
1960 | void manager_dispatch_bus_query_pid_done( | |
1961 | Manager *m, | |
1962 | const char *name, | |
1963 | pid_t pid) { | |
1964 | ||
1965 | Unit *u; | |
1966 | ||
1967 | assert(m); | |
1968 | assert(name); | |
1969 | assert(pid >= 1); | |
1970 | ||
1971 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1972 | return; | |
1973 | ||
1974 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
1975 | } | |
1976 | ||
d8d5ab98 | 1977 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1978 | char *path = NULL; |
a16e1123 LP |
1979 | int fd; |
1980 | FILE *f; | |
1981 | ||
1982 | assert(_f); | |
1983 | ||
67445f4e | 1984 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1985 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1986 | else |
1987 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1988 | |
b925e726 LP |
1989 | if (!path) |
1990 | return -ENOMEM; | |
a16e1123 | 1991 | |
5c0d398d LP |
1992 | RUN_WITH_UMASK(0077) { |
1993 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1994 | } | |
a16e1123 LP |
1995 | |
1996 | if (fd < 0) { | |
1997 | free(path); | |
1998 | return -errno; | |
1999 | } | |
2000 | ||
2001 | unlink(path); | |
2002 | ||
2003 | log_debug("Serializing state to %s", path); | |
2004 | free(path); | |
2005 | ||
01e10de3 LP |
2006 | f = fdopen(fd, "w+"); |
2007 | if (!f) | |
a16e1123 LP |
2008 | return -errno; |
2009 | ||
2010 | *_f = f; | |
2011 | ||
2012 | return 0; | |
2013 | } | |
2014 | ||
b3680f49 | 2015 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2016 | Iterator i; |
2017 | Unit *u; | |
2018 | const char *t; | |
4a9fd066 | 2019 | char **e; |
a16e1123 LP |
2020 | int r; |
2021 | ||
2022 | assert(m); | |
2023 | assert(f); | |
2024 | assert(fds); | |
2025 | ||
a7556052 | 2026 | m->n_reloading ++; |
38c52d46 | 2027 | |
01d67b43 LP |
2028 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2029 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2030 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2031 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2032 | |
915b3753 LP |
2033 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
2034 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); | |
2035 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); | |
e9ddabc2 | 2036 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2037 | |
26a1efdf | 2038 | if (!in_initrd()) { |
915b3753 | 2039 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 HH |
2040 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
2041 | } | |
47a483a1 | 2042 | |
b3680f49 HH |
2043 | if (!switching_root) { |
2044 | STRV_FOREACH(e, m->environment) { | |
2045 | _cleanup_free_ char *ce; | |
4a9fd066 | 2046 | |
b3680f49 HH |
2047 | ce = cescape(*e); |
2048 | if (ce) | |
2049 | fprintf(f, "env=%s\n", *e); | |
2050 | } | |
4a9fd066 OS |
2051 | } |
2052 | ||
f2382a94 LP |
2053 | fputc('\n', f); |
2054 | ||
a16e1123 | 2055 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2056 | if (u->id != t) |
a16e1123 LP |
2057 | continue; |
2058 | ||
2059 | if (!unit_can_serialize(u)) | |
2060 | continue; | |
2061 | ||
2062 | /* Start marker */ | |
ac155bb8 | 2063 | fputs(u->id, f); |
a16e1123 LP |
2064 | fputc('\n', f); |
2065 | ||
b3680f49 | 2066 | if ((r = unit_serialize(u, f, fds, !switching_root)) < 0) { |
a7556052 | 2067 | m->n_reloading --; |
a16e1123 | 2068 | return r; |
38c52d46 | 2069 | } |
a16e1123 LP |
2070 | } |
2071 | ||
a7556052 LP |
2072 | assert(m->n_reloading > 0); |
2073 | m->n_reloading --; | |
38c52d46 | 2074 | |
a16e1123 LP |
2075 | if (ferror(f)) |
2076 | return -EIO; | |
2077 | ||
b23de6af LP |
2078 | r = bus_fdset_add_all(m, fds); |
2079 | if (r < 0) | |
2080 | return r; | |
2081 | ||
a16e1123 LP |
2082 | return 0; |
2083 | } | |
2084 | ||
2085 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2086 | int r = 0; | |
2087 | ||
2088 | assert(m); | |
2089 | assert(f); | |
2090 | ||
2091 | log_debug("Deserializing state..."); | |
2092 | ||
a7556052 | 2093 | m->n_reloading ++; |
82c64bf5 | 2094 | |
10f8e83c | 2095 | for (;;) { |
20c03b7b | 2096 | char line[LINE_MAX], *l; |
10f8e83c LP |
2097 | |
2098 | if (!fgets(line, sizeof(line), f)) { | |
2099 | if (feof(f)) | |
2100 | r = 0; | |
2101 | else | |
2102 | r = -errno; | |
2103 | ||
2104 | goto finish; | |
2105 | } | |
2106 | ||
2107 | char_array_0(line); | |
2108 | l = strstrip(line); | |
2109 | ||
2110 | if (l[0] == 0) | |
2111 | break; | |
2112 | ||
01d67b43 LP |
2113 | if (startswith(l, "current-job-id=")) { |
2114 | uint32_t id; | |
2115 | ||
2116 | if (safe_atou32(l+15, &id) < 0) | |
2117 | log_debug("Failed to parse current job id value %s", l+15); | |
2118 | else | |
2119 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
2120 | } else if (startswith(l, "n-installed-jobs=")) { |
2121 | uint32_t n; | |
2122 | ||
2123 | if (safe_atou32(l+17, &n) < 0) | |
2124 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2125 | else | |
2126 | m->n_installed_jobs += n; | |
2127 | } else if (startswith(l, "n-failed-jobs=")) { | |
2128 | uint32_t n; | |
2129 | ||
2130 | if (safe_atou32(l+14, &n) < 0) | |
2131 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2132 | else | |
2133 | m->n_failed_jobs += n; | |
01d67b43 LP |
2134 | } else if (startswith(l, "taint-usr=")) { |
2135 | int b; | |
2136 | ||
2137 | if ((b = parse_boolean(l+10)) < 0) | |
2138 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2139 | else | |
2140 | m->taint_usr = m->taint_usr || b; | |
915b3753 LP |
2141 | } else if (startswith(l, "firmware-timestamp=")) |
2142 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2143 | else if (startswith(l, "loader-timestamp=")) | |
2144 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2145 | else if (startswith(l, "kernel-timestamp=")) | |
2146 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2147 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2148 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2149 | else if (startswith(l, "userspace-timestamp=")) |
2150 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2151 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2152 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
4a9fd066 OS |
2153 | else if (startswith(l, "env=")) { |
2154 | _cleanup_free_ char *uce = NULL; | |
2155 | char **e; | |
2156 | ||
2157 | uce = cunescape(l+4); | |
2158 | if (!uce) { | |
2159 | r = -ENOMEM; | |
2160 | goto finish; | |
2161 | } | |
2162 | ||
2163 | e = strv_env_set(m->environment, uce); | |
2164 | if (!e) { | |
2165 | r = -ENOMEM; | |
2166 | goto finish; | |
2167 | } | |
2168 | ||
2169 | strv_free(m->environment); | |
2170 | m->environment = e; | |
2171 | } else | |
10f8e83c LP |
2172 | log_debug("Unknown serialization item '%s'", l); |
2173 | } | |
2174 | ||
a16e1123 LP |
2175 | for (;;) { |
2176 | Unit *u; | |
2177 | char name[UNIT_NAME_MAX+2]; | |
2178 | ||
2179 | /* Start marker */ | |
2180 | if (!fgets(name, sizeof(name), f)) { | |
2181 | if (feof(f)) | |
10f8e83c LP |
2182 | r = 0; |
2183 | else | |
2184 | r = -errno; | |
a16e1123 | 2185 | |
82c64bf5 | 2186 | goto finish; |
a16e1123 LP |
2187 | } |
2188 | ||
2189 | char_array_0(name); | |
2190 | ||
bd0af849 ZJS |
2191 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2192 | if (r < 0) | |
82c64bf5 | 2193 | goto finish; |
a16e1123 | 2194 | |
01e10de3 LP |
2195 | r = unit_deserialize(u, f, fds); |
2196 | if (r < 0) | |
82c64bf5 | 2197 | goto finish; |
a16e1123 LP |
2198 | } |
2199 | ||
10f8e83c | 2200 | finish: |
82c64bf5 LP |
2201 | if (ferror(f)) { |
2202 | r = -EIO; | |
2203 | goto finish; | |
2204 | } | |
a16e1123 | 2205 | |
a7556052 LP |
2206 | assert(m->n_reloading > 0); |
2207 | m->n_reloading --; | |
82c64bf5 LP |
2208 | |
2209 | return r; | |
a16e1123 LP |
2210 | } |
2211 | ||
01e10de3 LP |
2212 | int manager_distribute_fds(Manager *m, FDSet *fds) { |
2213 | Unit *u; | |
2214 | Iterator i; | |
2215 | int r; | |
2216 | ||
2217 | assert(m); | |
2218 | ||
2219 | HASHMAP_FOREACH(u, m->units, i) { | |
2220 | ||
2221 | if (fdset_size(fds) <= 0) | |
2222 | break; | |
2223 | ||
2224 | if (UNIT_VTABLE(u)->distribute_fds) { | |
2225 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
2226 | if (r < 0) | |
2227 | return r; | |
2228 | } | |
2229 | } | |
2230 | ||
2231 | return 0; | |
2232 | } | |
2233 | ||
a16e1123 LP |
2234 | int manager_reload(Manager *m) { |
2235 | int r, q; | |
2236 | FILE *f; | |
2237 | FDSet *fds; | |
2238 | ||
2239 | assert(m); | |
2240 | ||
07719a21 LP |
2241 | r = manager_open_serialization(m, &f); |
2242 | if (r < 0) | |
a16e1123 LP |
2243 | return r; |
2244 | ||
a7556052 | 2245 | m->n_reloading ++; |
38c52d46 | 2246 | |
07719a21 LP |
2247 | fds = fdset_new(); |
2248 | if (!fds) { | |
a7556052 | 2249 | m->n_reloading --; |
a16e1123 LP |
2250 | r = -ENOMEM; |
2251 | goto finish; | |
2252 | } | |
2253 | ||
b3680f49 | 2254 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2255 | if (r < 0) { |
a7556052 | 2256 | m->n_reloading --; |
a16e1123 | 2257 | goto finish; |
38c52d46 | 2258 | } |
a16e1123 LP |
2259 | |
2260 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2261 | m->n_reloading --; |
a16e1123 LP |
2262 | r = -errno; |
2263 | goto finish; | |
2264 | } | |
2265 | ||
2266 | /* From here on there is no way back. */ | |
2267 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2268 | manager_undo_generators(m); |
84e3543e | 2269 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2270 | |
07719a21 | 2271 | /* Find new unit paths */ |
5a1e9937 LP |
2272 | manager_run_generators(m); |
2273 | ||
07719a21 LP |
2274 | q = lookup_paths_init( |
2275 | &m->lookup_paths, m->running_as, true, | |
2276 | m->generator_unit_path, | |
2277 | m->generator_unit_path_early, | |
2278 | m->generator_unit_path_late); | |
2279 | if (q < 0) | |
2280 | r = q; | |
2281 | ||
5a1e9937 LP |
2282 | manager_build_unit_path_cache(m); |
2283 | ||
a16e1123 | 2284 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2285 | q = manager_enumerate(m); |
2286 | if (q < 0) | |
a16e1123 LP |
2287 | r = q; |
2288 | ||
2289 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2290 | q = manager_deserialize(m, f, fds); |
2291 | if (q < 0) | |
a16e1123 LP |
2292 | r = q; |
2293 | ||
2294 | fclose(f); | |
2295 | f = NULL; | |
2296 | ||
2297 | /* Third, fire things up! */ | |
07719a21 LP |
2298 | q = manager_coldplug(m); |
2299 | if (q < 0) | |
a16e1123 LP |
2300 | r = q; |
2301 | ||
a7556052 LP |
2302 | assert(m->n_reloading > 0); |
2303 | m->n_reloading--; | |
9f611ad8 | 2304 | |
a16e1123 LP |
2305 | finish: |
2306 | if (f) | |
2307 | fclose(f); | |
2308 | ||
2309 | if (fds) | |
2310 | fdset_free(fds); | |
2311 | ||
2312 | return r; | |
2313 | } | |
2314 | ||
6084e22e | 2315 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2316 | Unit *u; |
2317 | ||
2318 | assert(m); | |
2319 | ||
2320 | /* Is the initial job still around? */ | |
bacbccb7 | 2321 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2322 | return true; |
2323 | ||
2324 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2325 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2326 | if (u) | |
ac155bb8 | 2327 | return !!u->job; |
9e58ff9c LP |
2328 | |
2329 | return false; | |
2330 | } | |
2331 | ||
c17ec25e MS |
2332 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2333 | assert(m); | |
2334 | ||
2335 | return m->n_reloading != 0; | |
2336 | } | |
2337 | ||
fdf20a31 | 2338 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2339 | Unit *u; |
2340 | Iterator i; | |
2341 | ||
2342 | assert(m); | |
2343 | ||
2344 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2345 | unit_reset_failed(u); |
5632e374 LP |
2346 | } |
2347 | ||
31afa0a4 | 2348 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2349 | Unit *u; |
2350 | ||
2351 | assert(m); | |
2352 | assert(name); | |
2353 | ||
2354 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2355 | u = manager_get_unit(m, name); |
2356 | if (!u) | |
8f6df3fa LP |
2357 | return true; |
2358 | ||
31afa0a4 | 2359 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2360 | } |
2361 | ||
b0c918b9 | 2362 | void manager_check_finished(Manager *m) { |
7ceba241 | 2363 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2364 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2365 | |
2366 | assert(m); | |
2367 | ||
a0b64226 MS |
2368 | if (m->n_running_jobs == 0) |
2369 | manager_unwatch_jobs_in_progress(m); | |
2370 | ||
5b176ee0 MS |
2371 | if (hashmap_size(m->jobs) > 0) { |
2372 | manager_jobs_in_progress_mod_timer(m); | |
b0c918b9 | 2373 | return; |
5b176ee0 | 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 | ||
f2b68789 | 2382 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2383 | return; |
2384 | ||
2385 | dual_timestamp_get(&m->finish_timestamp); | |
2386 | ||
67445f4e | 2387 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2388 | |
915b3753 LP |
2389 | /* Note that m->kernel_usec.monotonic is always at 0, |
2390 | * and m->firmware_usec.monotonic and | |
2391 | * m->loader_usec.monotonic should be considered | |
2392 | * negative values. */ | |
2393 | ||
7ceba241 LP |
2394 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2395 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2396 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2397 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2398 | |
e9ddabc2 | 2399 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2400 | |
915b3753 LP |
2401 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2402 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2403 | |
81270860 LP |
2404 | if (!log_on_console()) |
2405 | log_struct(LOG_INFO, | |
1ca6783f | 2406 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2407 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2408 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2409 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2410 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2411 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2412 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2413 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2414 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2415 | NULL); |
18fa6b27 | 2416 | } else { |
915b3753 | 2417 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2418 | initrd_usec = 0; |
2419 | ||
81270860 LP |
2420 | if (!log_on_console()) |
2421 | log_struct(LOG_INFO, | |
1ca6783f | 2422 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2423 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2424 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2425 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2426 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2427 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2428 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2429 | NULL); |
18fa6b27 LP |
2430 | } |
2431 | } else { | |
915b3753 LP |
2432 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2433 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2434 | |
81270860 LP |
2435 | if (!log_on_console()) |
2436 | log_struct(LOG_INFO, | |
1ca6783f | 2437 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2438 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2439 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2440 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2441 | NULL); |
18fa6b27 | 2442 | } |
b0c918b9 | 2443 | |
915b3753 | 2444 | bus_broadcast_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2445 | |
2446 | sd_notifyf(false, | |
2447 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2448 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2449 | } |
2450 | ||
07719a21 LP |
2451 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2452 | char *p; | |
2453 | int r; | |
2454 | ||
2455 | assert(m); | |
2456 | assert(generator); | |
2457 | assert(name); | |
2458 | ||
2459 | if (*generator) | |
2460 | return 0; | |
2461 | ||
67445f4e | 2462 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2463 | |
2464 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2465 | if (!p) |
2466 | return log_oom(); | |
07719a21 | 2467 | |
d2e54fae | 2468 | r = mkdir_p_label(p, 0755); |
07719a21 | 2469 | if (r < 0) { |
7ad94c71 ZJS |
2470 | log_error("Failed to create generator directory %s: %s", |
2471 | p, strerror(-r)); | |
07719a21 LP |
2472 | free(p); |
2473 | return r; | |
2474 | } | |
2475 | } else { | |
b7def684 | 2476 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2477 | if (!p) |
2478 | return log_oom(); | |
07719a21 LP |
2479 | |
2480 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2481 | log_error("Failed to create generator directory %s: %m", |
2482 | p); | |
34bf0281 | 2483 | free(p); |
07719a21 LP |
2484 | return -errno; |
2485 | } | |
2486 | } | |
2487 | ||
2488 | *generator = p; | |
2489 | return 0; | |
2490 | } | |
2491 | ||
2492 | static void trim_generator_dir(Manager *m, char **generator) { | |
2493 | assert(m); | |
2494 | assert(generator); | |
2495 | ||
2496 | if (!*generator) | |
2497 | return; | |
2498 | ||
2499 | if (rmdir(*generator) >= 0) { | |
2500 | free(*generator); | |
2501 | *generator = NULL; | |
2502 | } | |
2503 | ||
2504 | return; | |
2505 | } | |
2506 | ||
5a1e9937 LP |
2507 | void manager_run_generators(Manager *m) { |
2508 | DIR *d = NULL; | |
5a1e9937 | 2509 | const char *generator_path; |
07719a21 | 2510 | const char *argv[5]; |
07719a21 | 2511 | int r; |
5a1e9937 LP |
2512 | |
2513 | assert(m); | |
2514 | ||
67445f4e | 2515 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2516 | d = opendir(generator_path); |
2517 | if (!d) { | |
5a1e9937 LP |
2518 | if (errno == ENOENT) |
2519 | return; | |
2520 | ||
7ad94c71 ZJS |
2521 | log_error("Failed to enumerate generator directory %s: %m", |
2522 | generator_path); | |
5a1e9937 LP |
2523 | return; |
2524 | } | |
2525 | ||
07719a21 LP |
2526 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2527 | if (r < 0) | |
2528 | goto finish; | |
f1d19aa4 | 2529 | |
07719a21 LP |
2530 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2531 | if (r < 0) | |
2532 | goto finish; | |
5a1e9937 | 2533 | |
07719a21 LP |
2534 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2535 | if (r < 0) | |
2536 | goto finish; | |
5a1e9937 | 2537 | |
83cc030f LP |
2538 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2539 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2540 | argv[2] = m->generator_unit_path_early; |
2541 | argv[3] = m->generator_unit_path_late; | |
2542 | argv[4] = NULL; | |
5a1e9937 | 2543 | |
5c0d398d LP |
2544 | RUN_WITH_UMASK(0022) { |
2545 | execute_directory(generator_path, d, (char**) argv); | |
2546 | } | |
5a1e9937 | 2547 | |
07719a21 LP |
2548 | trim_generator_dir(m, &m->generator_unit_path); |
2549 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2550 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2551 | |
2552 | finish: | |
2553 | if (d) | |
2554 | closedir(d); | |
5a1e9937 LP |
2555 | } |
2556 | ||
07719a21 | 2557 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2558 | assert(m); |
07719a21 | 2559 | assert(generator); |
5a1e9937 | 2560 | |
07719a21 | 2561 | if (!*generator) |
5a1e9937 LP |
2562 | return; |
2563 | ||
07719a21 LP |
2564 | strv_remove(m->lookup_paths.unit_path, *generator); |
2565 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2566 | |
07719a21 LP |
2567 | free(*generator); |
2568 | *generator = NULL; | |
2569 | } | |
2570 | ||
2571 | void manager_undo_generators(Manager *m) { | |
2572 | assert(m); | |
2573 | ||
2574 | remove_generator_dir(m, &m->generator_unit_path); | |
2575 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2576 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2577 | } |
2578 | ||
97d0e5f8 UTL |
2579 | int manager_set_default_environment(Manager *m, char **environment) { |
2580 | ||
2581 | char **e = NULL; | |
2582 | assert(m); | |
2583 | e = strv_env_merge(2, m->environment, environment); | |
2584 | if (!e) | |
2585 | return -ENOMEM; | |
2586 | strv_free(m->environment); | |
2587 | m->environment = e; | |
2588 | return 0; | |
2589 | } | |
2590 | ||
c93ff2e9 FC |
2591 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2592 | int i; | |
2593 | ||
2594 | assert(m); | |
2595 | ||
2596 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2597 | if (!default_rlimit[i]) |
2598 | continue; | |
c93ff2e9 | 2599 | |
07719a21 LP |
2600 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2601 | if (!m->rlimit[i]) | |
2602 | return -ENOMEM; | |
c93ff2e9 FC |
2603 | } |
2604 | ||
2605 | return 0; | |
2606 | } | |
2607 | ||
4cfa2c99 | 2608 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2609 | Unit *u; |
2610 | ||
2611 | assert(m); | |
2612 | ||
67445f4e | 2613 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2614 | return; |
2615 | ||
731a676c LP |
2616 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2617 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2618 | log_close_journal(); |
731a676c | 2619 | return; |
f1dd0c3f LP |
2620 | } |
2621 | ||
731a676c LP |
2622 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2623 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2624 | log_close_journal(); |
731a676c LP |
2625 | return; |
2626 | } | |
f1dd0c3f | 2627 | |
731a676c LP |
2628 | /* Hmm, OK, so the socket is fully up and the service is up |
2629 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2630 | log_open(); |
2631 | } | |
2632 | ||
27d340c7 LP |
2633 | void manager_set_show_status(Manager *m, bool b) { |
2634 | assert(m); | |
2635 | ||
67445f4e | 2636 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2637 | return; |
2638 | ||
2639 | m->show_status = b; | |
2640 | ||
2641 | if (b) | |
2642 | touch("/run/systemd/show-status"); | |
2643 | else | |
2644 | unlink("/run/systemd/show-status"); | |
2645 | } | |
2646 | ||
6084e22e | 2647 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2648 | assert(m); |
2649 | ||
67445f4e | 2650 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2651 | return false; |
2652 | ||
2653 | if (m->show_status) | |
2654 | return true; | |
2655 | ||
2656 | /* If Plymouth is running make sure we show the status, so | |
2657 | * that there's something nice to see when people press Esc */ | |
2658 | ||
2659 | return plymouth_running(); | |
2660 | } | |
68b29a9f | 2661 | |
984a2be4 | 2662 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2663 | va_list ap; |
2664 | ||
2665 | if (!manager_get_show_status(m)) | |
2666 | return; | |
2667 | ||
03b717a3 MS |
2668 | /* XXX We should totally drop the check for ephemeral here |
2669 | * and thus effectively make 'Type=idle' pointless. */ | |
2670 | if (ephemeral && m->n_on_console > 0) | |
2671 | return; | |
2672 | ||
25cee550 MS |
2673 | if (!manager_is_booting_or_shutting_down(m)) |
2674 | return; | |
2675 | ||
2676 | va_start(ap, format); | |
984a2be4 | 2677 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2678 | va_end(ap); |
2679 | } | |
2680 | ||
68b29a9f LP |
2681 | void watch_init(Watch *w) { |
2682 | assert(w); | |
2683 | ||
2684 | w->type = WATCH_INVALID; | |
2685 | w->fd = -1; | |
2686 | } |