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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 LP |
25 | #include <sys/epoll.h> |
26 | #include <signal.h> | |
27 | #include <sys/signalfd.h> | |
28 | #include <sys/wait.h> | |
29 | #include <unistd.h> | |
30 | #include <sys/poll.h> | |
e1414003 LP |
31 | #include <sys/reboot.h> |
32 | #include <sys/ioctl.h> | |
33 | #include <linux/kd.h> | |
80876c20 LP |
34 | #include <termios.h> |
35 | #include <fcntl.h> | |
a16e1123 LP |
36 | #include <sys/types.h> |
37 | #include <sys/stat.h> | |
fe51822e | 38 | #include <dirent.h> |
8742514c | 39 | #include <sys/timerfd.h> |
830f6caa LP |
40 | |
41 | #ifdef HAVE_AUDIT | |
4927fcae | 42 | #include <libaudit.h> |
830f6caa | 43 | #endif |
60918275 | 44 | |
877d54e9 LP |
45 | #include "systemd/sd-daemon.h" |
46 | #include "systemd/sd-id128.h" | |
47 | #include "systemd/sd-messages.h" | |
81527be1 | 48 | |
60918275 | 49 | #include "manager.h" |
75778e21 | 50 | #include "transaction.h" |
60918275 LP |
51 | #include "hashmap.h" |
52 | #include "macro.h" | |
53 | #include "strv.h" | |
16354eff | 54 | #include "log.h" |
2a987ee8 | 55 | #include "util.h" |
49e942b2 | 56 | #include "mkdir.h" |
ea430986 | 57 | #include "ratelimit.h" |
8e274523 LP |
58 | #include "cgroup.h" |
59 | #include "mount-setup.h" | |
9e2f7c11 | 60 | #include "unit-name.h" |
4139c1b2 LP |
61 | #include "dbus-unit.h" |
62 | #include "dbus-job.h" | |
1137a57c | 63 | #include "missing.h" |
84e3543e | 64 | #include "path-lookup.h" |
514f4ef5 | 65 | #include "special.h" |
398ef8ba | 66 | #include "bus-errors.h" |
d06dacd0 | 67 | #include "exit-status.h" |
5dc4c17f | 68 | #include "virt.h" |
e96d6be7 | 69 | #include "watchdog.h" |
b59e2465 | 70 | #include "cgroup-util.h" |
9eb977db | 71 | #include "path-util.h" |
c1165f82 | 72 | #include "audit-fd.h" |
4f8d551f | 73 | #include "efivars.h" |
8b55b8c4 | 74 | #include "env-util.h" |
60918275 | 75 | |
701cc384 LP |
76 | /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ |
77 | #define GC_QUEUE_ENTRIES_MAX 16 | |
78 | ||
79 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ | |
94b6dfa2 | 80 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 81 | |
03b717a3 MS |
82 | /* Initial delay and the interval for printing status messages about running jobs */ |
83 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
84 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
86 | ||
8c47c732 | 87 | /* Where clients shall send notification messages to */ |
29252e9e | 88 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 89 | |
c3e31c7b ZJS |
90 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
91 | ||
8c47c732 LP |
92 | static int manager_setup_notify(Manager *m) { |
93 | union { | |
94 | struct sockaddr sa; | |
95 | struct sockaddr_un un; | |
b92bea5d ZJS |
96 | } sa = { |
97 | .sa.sa_family = AF_UNIX, | |
98 | }; | |
99 | struct epoll_event ev = { | |
100 | .events = EPOLLIN, | |
101 | .data.ptr = &m->notify_watch, | |
102 | }; | |
e62d8c39 | 103 | int one = 1, r; |
8c47c732 | 104 | |
8c47c732 | 105 | m->notify_watch.type = WATCH_NOTIFY; |
29252e9e LP |
106 | m->notify_watch.fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
107 | if (m->notify_watch.fd < 0) { | |
8c47c732 LP |
108 | log_error("Failed to allocate notification socket: %m"); |
109 | return -errno; | |
110 | } | |
111 | ||
31f92a7d | 112 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
113 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
114 | else | |
115 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
8c47c732 | 116 | |
29252e9e | 117 | sa.un.sun_path[0] = 0; |
1d6702e8 | 118 | |
e62d8c39 ZJS |
119 | r = bind(m->notify_watch.fd, &sa.sa, |
120 | offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); | |
121 | if (r < 0) { | |
8c47c732 LP |
122 | log_error("bind() failed: %m"); |
123 | return -errno; | |
124 | } | |
125 | ||
e62d8c39 ZJS |
126 | r = setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
127 | if (r < 0) { | |
8c47c732 LP |
128 | log_error("SO_PASSCRED failed: %m"); |
129 | return -errno; | |
130 | } | |
131 | ||
e62d8c39 ZJS |
132 | r = epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev); |
133 | if (r < 0) { | |
28137202 | 134 | log_error("Failed to add notification socket fd to epoll: %m"); |
8c47c732 | 135 | return -errno; |
8742514c | 136 | } |
8c47c732 | 137 | |
29252e9e LP |
138 | sa.un.sun_path[0] = '@'; |
139 | m->notify_socket = strdup(sa.un.sun_path); | |
140 | if (!m->notify_socket) | |
8742514c | 141 | return log_oom(); |
8c47c732 | 142 | |
b2bb3dbe LP |
143 | log_debug("Using notification socket %s", m->notify_socket); |
144 | ||
8c47c732 LP |
145 | return 0; |
146 | } | |
147 | ||
03b717a3 | 148 | static int manager_jobs_in_progress_mod_timer(Manager *m) { |
b92bea5d ZJS |
149 | struct itimerspec its = { |
150 | .it_value.tv_sec = JOBS_IN_PROGRESS_WAIT_SEC, | |
151 | .it_interval.tv_sec = JOBS_IN_PROGRESS_PERIOD_SEC, | |
152 | }; | |
03b717a3 | 153 | |
5b176ee0 MS |
154 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) |
155 | return 0; | |
156 | ||
03b717a3 MS |
157 | if (timerfd_settime(m->jobs_in_progress_watch.fd, 0, &its, NULL) < 0) |
158 | return -errno; | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | static int manager_watch_jobs_in_progress(Manager *m) { | |
b92bea5d ZJS |
164 | struct epoll_event ev = { |
165 | .events = EPOLLIN, | |
166 | .data.ptr = &m->jobs_in_progress_watch, | |
167 | }; | |
03b717a3 MS |
168 | int r; |
169 | ||
03b717a3 MS |
170 | if (m->jobs_in_progress_watch.type != WATCH_INVALID) |
171 | return 0; | |
172 | ||
173 | m->jobs_in_progress_watch.type = WATCH_JOBS_IN_PROGRESS; | |
174 | m->jobs_in_progress_watch.fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC); | |
175 | if (m->jobs_in_progress_watch.fd < 0) { | |
176 | log_error("Failed to create timerfd: %m"); | |
177 | r = -errno; | |
178 | goto err; | |
179 | } | |
180 | ||
181 | r = manager_jobs_in_progress_mod_timer(m); | |
182 | if (r < 0) { | |
183 | log_error("Failed to set up timer for jobs progress watch: %s", strerror(-r)); | |
184 | goto err; | |
185 | } | |
186 | ||
03b717a3 MS |
187 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->jobs_in_progress_watch.fd, &ev) < 0) { |
188 | log_error("Failed to add jobs progress timer fd to epoll: %m"); | |
189 | r = -errno; | |
190 | goto err; | |
191 | } | |
192 | ||
193 | log_debug("Set up jobs progress timerfd."); | |
194 | ||
195 | return 0; | |
196 | ||
197 | err: | |
198 | if (m->jobs_in_progress_watch.fd >= 0) | |
199 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
200 | watch_init(&m->jobs_in_progress_watch); | |
201 | return r; | |
202 | } | |
203 | ||
204 | static void manager_unwatch_jobs_in_progress(Manager *m) { | |
205 | if (m->jobs_in_progress_watch.type != WATCH_JOBS_IN_PROGRESS) | |
206 | return; | |
207 | ||
208 | assert_se(epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->jobs_in_progress_watch.fd, NULL) >= 0); | |
209 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
210 | watch_init(&m->jobs_in_progress_watch); | |
211 | m->jobs_in_progress_iteration = 0; | |
212 | ||
213 | log_debug("Closed jobs progress timerfd."); | |
214 | } | |
215 | ||
216 | #define CYLON_BUFFER_EXTRA (2*strlen(ANSI_RED_ON) + strlen(ANSI_HIGHLIGHT_RED_ON) + 2*strlen(ANSI_HIGHLIGHT_OFF)) | |
217 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { | |
218 | char *p = buffer; | |
219 | ||
220 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
221 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
222 | ||
223 | if (pos > 1) { | |
6282c859 MS |
224 | if (pos > 2) |
225 | p = mempset(p, ' ', pos-2); | |
5052495b | 226 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
227 | *p++ = '*'; |
228 | } | |
229 | ||
230 | if (pos > 0 && pos <= width) { | |
5052495b | 231 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
232 | *p++ = '*'; |
233 | } | |
234 | ||
5052495b | 235 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
236 | |
237 | if (pos < width) { | |
5052495b | 238 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 239 | *p++ = '*'; |
6282c859 MS |
240 | if (pos < width-1) |
241 | p = mempset(p, ' ', width-1-pos); | |
5052495b | 242 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 243 | } |
03b717a3 MS |
244 | } |
245 | ||
246 | static void manager_print_jobs_in_progress(Manager *m) { | |
247 | Iterator i; | |
248 | Job *j; | |
249 | char *job_of_n = NULL; | |
250 | unsigned counter = 0, print_nr; | |
251 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
252 | unsigned cylon_pos; | |
253 | ||
254 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; | |
255 | ||
256 | HASHMAP_FOREACH(j, m->jobs, i) | |
257 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
258 | break; | |
259 | ||
e970a72e MS |
260 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
261 | * so the above loop must have succeeded in finding j. */ | |
262 | assert(counter == print_nr + 1); | |
5a82a91a | 263 | |
03b717a3 MS |
264 | cylon_pos = m->jobs_in_progress_iteration % 14; |
265 | if (cylon_pos >= 8) | |
266 | cylon_pos = 14 - cylon_pos; | |
267 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
268 | ||
269 | if (m->n_running_jobs > 1) | |
270 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
271 | job_of_n = NULL; | |
272 | ||
273 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
274 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
275 | free(job_of_n); | |
276 | ||
277 | m->jobs_in_progress_iteration++; | |
278 | } | |
279 | ||
8742514c | 280 | static int manager_setup_time_change(Manager *m) { |
b92bea5d ZJS |
281 | struct epoll_event ev = { |
282 | .events = EPOLLIN, | |
283 | .data.ptr = &m->time_change_watch, | |
284 | }; | |
285 | ||
286 | /* We only care for the cancellation event, hence we set the | |
287 | * timeout to the latest possible value. */ | |
288 | struct itimerspec its = { | |
289 | .it_value.tv_sec = TIME_T_MAX, | |
290 | }; | |
291 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c | 292 | |
8742514c LP |
293 | assert(m->time_change_watch.type == WATCH_INVALID); |
294 | ||
295 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
296 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
297 | ||
298 | m->time_change_watch.type = WATCH_TIME_CHANGE; | |
299 | m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
300 | if (m->time_change_watch.fd < 0) { | |
301 | log_error("Failed to create timerfd: %m"); | |
302 | return -errno; | |
303 | } | |
304 | ||
8742514c LP |
305 | if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
306 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); | |
307 | close_nointr_nofail(m->time_change_watch.fd); | |
308 | watch_init(&m->time_change_watch); | |
309 | return 0; | |
310 | } | |
311 | ||
8742514c LP |
312 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) { |
313 | log_error("Failed to add timer change fd to epoll: %m"); | |
314 | return -errno; | |
315 | } | |
316 | ||
317 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
80876c20 | 322 | static int enable_special_signals(Manager *m) { |
4466ee6a | 323 | int fd; |
80876c20 LP |
324 | |
325 | assert(m); | |
326 | ||
a41b539e | 327 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
328 | * this will fail with EPERM (older) or EINVAL (newer), so |
329 | * ignore that. */ | |
330 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
331 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
332 | ||
a41b539e LP |
333 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
334 | if (fd < 0) { | |
335 | /* Support systems without virtual console */ | |
336 | if (fd != -ENOENT) | |
337 | log_warning("Failed to open /dev/tty0: %m"); | |
338 | } else { | |
80876c20 LP |
339 | /* Enable that we get SIGWINCH on kbrequest */ |
340 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
341 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
342 | ||
343 | close_nointr_nofail(fd); | |
344 | } | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
ce578209 | 349 | static int manager_setup_signals(Manager *m) { |
9152c765 | 350 | sigset_t mask; |
b92bea5d ZJS |
351 | struct epoll_event ev = { |
352 | .events = EPOLLIN, | |
353 | .data.ptr = &m->signal_watch, | |
354 | }; | |
355 | struct sigaction sa = { | |
356 | .sa_handler = SIG_DFL, | |
357 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
358 | }; | |
60918275 | 359 | |
ce578209 LP |
360 | assert(m); |
361 | ||
57c0c30e | 362 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
363 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
364 | ||
ce578209 | 365 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
366 | |
367 | sigset_add_many(&mask, | |
368 | SIGCHLD, /* Child died */ | |
369 | SIGTERM, /* Reexecute daemon */ | |
370 | SIGHUP, /* Reload configuration */ | |
371 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
372 | SIGUSR2, /* systemd: dump status */ | |
373 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
374 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
375 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
376 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 377 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
378 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
379 | SIGRTMIN+3, /* systemd: start halt.target */ | |
380 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
381 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
382 | SIGRTMIN+6, /* systemd: start kexec.target */ |
383 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
384 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
385 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
386 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
387 | SIGRTMIN+20, /* systemd: enable status messages */ |
388 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
389 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
390 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 391 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 392 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
393 | SIGRTMIN+27, /* systemd: set log target to console */ |
394 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
395 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 396 | -1); |
ce578209 LP |
397 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
398 | ||
ef734fd6 | 399 | m->signal_watch.type = WATCH_SIGNAL; |
8742514c LP |
400 | m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
401 | if (m->signal_watch.fd < 0) | |
ce578209 LP |
402 | return -errno; |
403 | ||
ce578209 LP |
404 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) |
405 | return -errno; | |
406 | ||
67445f4e | 407 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 408 | return enable_special_signals(m); |
e1414003 | 409 | |
ce578209 LP |
410 | return 0; |
411 | } | |
412 | ||
71ecc858 LP |
413 | static void manager_strip_environment(Manager *m) { |
414 | assert(m); | |
415 | ||
416 | /* Remove variables from the inherited set that are part of | |
417 | * the container interface: | |
418 | * http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface */ | |
419 | strv_remove_prefix(m->environment, "container="); | |
420 | strv_remove_prefix(m->environment, "container_"); | |
421 | ||
422 | /* Remove variables from the inherited set that are part of | |
423 | * the initrd interface: | |
424 | * http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface */ | |
425 | strv_remove_prefix(m->environment, "RD_"); | |
8b55b8c4 LP |
426 | |
427 | /* Drop invalid entries */ | |
428 | strv_env_clean(m->environment); | |
71ecc858 LP |
429 | } |
430 | ||
67445f4e | 431 | int manager_new(SystemdRunningAs running_as, Manager **_m) { |
ce578209 | 432 | Manager *m; |
8e274523 LP |
433 | int r = -ENOMEM; |
434 | ||
435 | assert(_m); | |
a5dab5ce | 436 | assert(running_as >= 0); |
67445f4e | 437 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 438 | |
915b3753 LP |
439 | m = new0(Manager, 1); |
440 | if (!m) | |
8e274523 | 441 | return -ENOMEM; |
60918275 | 442 | |
4f8d551f ZC |
443 | #ifdef ENABLE_EFI |
444 | if (detect_container(NULL) <= 0) | |
445 | efi_get_boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); | |
446 | #endif | |
447 | ||
a5dab5ce | 448 | m->running_as = running_as; |
cbd37330 | 449 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 450 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 451 | m->pin_cgroupfs_fd = -1; |
f2b68789 | 452 | m->idle_pipe[0] = m->idle_pipe[1] = -1; |
80876c20 | 453 | |
8742514c LP |
454 | watch_init(&m->signal_watch); |
455 | watch_init(&m->mount_watch); | |
456 | watch_init(&m->swap_watch); | |
457 | watch_init(&m->udev_watch); | |
458 | watch_init(&m->time_change_watch); | |
03b717a3 | 459 | watch_init(&m->jobs_in_progress_watch); |
8742514c LP |
460 | |
461 | m->epoll_fd = m->dev_autofs_fd = -1; | |
ea430986 | 462 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 463 | |
71ecc858 LP |
464 | m->environment = strv_copy(environ); |
465 | if (!m->environment) | |
1137a57c LP |
466 | goto fail; |
467 | ||
71ecc858 LP |
468 | manager_strip_environment(m); |
469 | ||
67445f4e | 470 | if (running_as == SYSTEMD_SYSTEM) { |
88f06645 LP |
471 | m->default_controllers = strv_new("cpu", NULL); |
472 | if (!m->default_controllers) | |
473 | goto fail; | |
474 | } | |
06d4c99a | 475 | |
87f0e418 | 476 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
477 | goto fail; |
478 | ||
479 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
480 | goto fail; | |
481 | ||
9152c765 LP |
482 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
483 | goto fail; | |
484 | ||
8e274523 LP |
485 | if (!(m->cgroup_bondings = hashmap_new(string_hash_func, string_compare_func))) |
486 | goto fail; | |
487 | ||
05e343b7 LP |
488 | if (!(m->watch_bus = hashmap_new(string_hash_func, string_compare_func))) |
489 | goto fail; | |
490 | ||
8742514c LP |
491 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
492 | if (m->epoll_fd < 0) | |
493 | goto fail; | |
494 | ||
495 | r = manager_setup_signals(m); | |
496 | if (r < 0) | |
9152c765 LP |
497 | goto fail; |
498 | ||
8742514c LP |
499 | r = manager_setup_cgroup(m); |
500 | if (r < 0) | |
8e274523 LP |
501 | goto fail; |
502 | ||
8742514c LP |
503 | r = manager_setup_notify(m); |
504 | if (r < 0) | |
9152c765 LP |
505 | goto fail; |
506 | ||
8742514c LP |
507 | r = manager_setup_time_change(m); |
508 | if (r < 0) | |
8c47c732 LP |
509 | goto fail; |
510 | ||
f278026d | 511 | /* Try to connect to the busses, if possible. */ |
ed002560 AK |
512 | if ((running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) || |
513 | running_as == SYSTEMD_SYSTEM) { | |
514 | r = bus_init(m, running_as != SYSTEMD_SYSTEM); | |
515 | if (r < 0) | |
516 | goto fail; | |
517 | } else | |
518 | log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set..."); | |
ea430986 | 519 | |
72bc8d00 LP |
520 | m->taint_usr = dir_is_empty("/usr") > 0; |
521 | ||
8e274523 LP |
522 | *_m = m; |
523 | return 0; | |
60918275 LP |
524 | |
525 | fail: | |
526 | manager_free(m); | |
8e274523 | 527 | return r; |
60918275 LP |
528 | } |
529 | ||
23a177ef | 530 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 531 | Unit *u; |
23a177ef LP |
532 | unsigned n = 0; |
533 | ||
534 | assert(m); | |
535 | ||
595ed347 MS |
536 | while ((u = m->cleanup_queue)) { |
537 | assert(u->in_cleanup_queue); | |
23a177ef | 538 | |
595ed347 | 539 | unit_free(u); |
23a177ef LP |
540 | n++; |
541 | } | |
542 | ||
543 | return n; | |
544 | } | |
545 | ||
eced69b3 | 546 | enum { |
35b8ca3a | 547 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
548 | GC_OFFSET_UNSURE, /* No clue */ |
549 | GC_OFFSET_GOOD, /* We still need this unit */ | |
550 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
551 | _GC_OFFSET_MAX | |
552 | }; | |
553 | ||
554 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
555 | Iterator i; |
556 | Unit *other; | |
eced69b3 | 557 | bool is_bad; |
701cc384 LP |
558 | |
559 | assert(u); | |
560 | ||
ac155bb8 MS |
561 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
562 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
563 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
564 | return; |
565 | ||
ac155bb8 | 566 | if (u->in_cleanup_queue) |
701cc384 LP |
567 | goto bad; |
568 | ||
569 | if (unit_check_gc(u)) | |
570 | goto good; | |
571 | ||
ac155bb8 | 572 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
573 | |
574 | is_bad = true; | |
575 | ||
ac155bb8 | 576 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
577 | unit_gc_sweep(other, gc_marker); |
578 | ||
ac155bb8 | 579 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 580 | goto good; |
eced69b3 | 581 | |
ac155bb8 | 582 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 583 | is_bad = false; |
701cc384 LP |
584 | } |
585 | ||
eced69b3 LP |
586 | if (is_bad) |
587 | goto bad; | |
588 | ||
589 | /* We were unable to find anything out about this entry, so | |
590 | * let's investigate it later */ | |
ac155bb8 | 591 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
592 | unit_add_to_gc_queue(u); |
593 | return; | |
594 | ||
701cc384 | 595 | bad: |
eced69b3 LP |
596 | /* We definitely know that this one is not useful anymore, so |
597 | * let's mark it for deletion */ | |
ac155bb8 | 598 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 599 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
600 | return; |
601 | ||
602 | good: | |
ac155bb8 | 603 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
604 | } |
605 | ||
606 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 607 | Unit *u; |
701cc384 | 608 | unsigned n = 0; |
eced69b3 | 609 | unsigned gc_marker; |
701cc384 LP |
610 | |
611 | assert(m); | |
612 | ||
613 | if ((m->n_in_gc_queue < GC_QUEUE_ENTRIES_MAX) && | |
614 | (m->gc_queue_timestamp <= 0 || | |
615 | (m->gc_queue_timestamp + GC_QUEUE_USEC_MAX) > now(CLOCK_MONOTONIC))) | |
616 | return 0; | |
617 | ||
618 | log_debug("Running GC..."); | |
619 | ||
eced69b3 LP |
620 | m->gc_marker += _GC_OFFSET_MAX; |
621 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 622 | m->gc_marker = 1; |
701cc384 | 623 | |
eced69b3 LP |
624 | gc_marker = m->gc_marker; |
625 | ||
595ed347 MS |
626 | while ((u = m->gc_queue)) { |
627 | assert(u->in_gc_queue); | |
701cc384 | 628 | |
595ed347 | 629 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 630 | |
595ed347 MS |
631 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
632 | u->in_gc_queue = false; | |
701cc384 LP |
633 | |
634 | n++; | |
635 | ||
595ed347 MS |
636 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
637 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 638 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
639 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
640 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
641 | } |
642 | } | |
643 | ||
644 | m->n_in_gc_queue = 0; | |
645 | m->gc_queue_timestamp = 0; | |
646 | ||
647 | return n; | |
648 | } | |
649 | ||
a16e1123 | 650 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 651 | Unit *u; |
60918275 LP |
652 | |
653 | assert(m); | |
654 | ||
87f0e418 LP |
655 | while ((u = hashmap_first(m->units))) |
656 | unit_free(u); | |
964e0949 LP |
657 | |
658 | manager_dispatch_cleanup_queue(m); | |
659 | ||
660 | assert(!m->load_queue); | |
661 | assert(!m->run_queue); | |
662 | assert(!m->dbus_unit_queue); | |
663 | assert(!m->dbus_job_queue); | |
664 | assert(!m->cleanup_queue); | |
665 | assert(!m->gc_queue); | |
666 | ||
964e0949 LP |
667 | assert(hashmap_isempty(m->jobs)); |
668 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
669 | |
670 | m->n_on_console = 0; | |
671 | m->n_running_jobs = 0; | |
a16e1123 LP |
672 | } |
673 | ||
674 | void manager_free(Manager *m) { | |
675 | UnitType c; | |
c93ff2e9 | 676 | int i; |
87f0e418 | 677 | |
a16e1123 LP |
678 | assert(m); |
679 | ||
680 | manager_clear_jobs_and_units(m); | |
23a177ef | 681 | |
7824bbeb LP |
682 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
683 | if (unit_vtable[c]->shutdown) | |
684 | unit_vtable[c]->shutdown(m); | |
685 | ||
a16e1123 LP |
686 | /* If we reexecute ourselves, we keep the root cgroup |
687 | * around */ | |
c6c18be3 | 688 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 689 | |
5a1e9937 LP |
690 | manager_undo_generators(m); |
691 | ||
5e8d1c9a | 692 | bus_done(m); |
ea430986 | 693 | |
87f0e418 | 694 | hashmap_free(m->units); |
60918275 | 695 | hashmap_free(m->jobs); |
9152c765 | 696 | hashmap_free(m->watch_pids); |
05e343b7 | 697 | hashmap_free(m->watch_bus); |
9152c765 LP |
698 | |
699 | if (m->epoll_fd >= 0) | |
a16e1123 | 700 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 701 | if (m->signal_watch.fd >= 0) |
a16e1123 | 702 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
703 | if (m->notify_watch.fd >= 0) |
704 | close_nointr_nofail(m->notify_watch.fd); | |
8742514c LP |
705 | if (m->time_change_watch.fd >= 0) |
706 | close_nointr_nofail(m->time_change_watch.fd); | |
03b717a3 MS |
707 | if (m->jobs_in_progress_watch.fd >= 0) |
708 | close_nointr_nofail(m->jobs_in_progress_watch.fd); | |
60918275 | 709 | |
c952c6ec LP |
710 | free(m->notify_socket); |
711 | ||
84e3543e | 712 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 713 | strv_free(m->environment); |
036643a2 | 714 | |
06d4c99a LP |
715 | strv_free(m->default_controllers); |
716 | ||
8e274523 | 717 | hashmap_free(m->cgroup_bondings); |
c6c18be3 | 718 | set_free_free(m->unit_path_cache); |
33be102a | 719 | |
f2b68789 LP |
720 | close_pipe(m->idle_pipe); |
721 | ||
664f88a7 LP |
722 | free(m->switch_root); |
723 | free(m->switch_root_init); | |
724 | ||
c93ff2e9 FC |
725 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
726 | free(m->rlimit[i]); | |
727 | ||
60918275 LP |
728 | free(m); |
729 | } | |
730 | ||
a16e1123 LP |
731 | int manager_enumerate(Manager *m) { |
732 | int r = 0, q; | |
f50e0a01 | 733 | UnitType c; |
f50e0a01 LP |
734 | |
735 | assert(m); | |
736 | ||
a16e1123 LP |
737 | /* Let's ask every type to load all units from disk/kernel |
738 | * that it might know */ | |
f50e0a01 LP |
739 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
740 | if (unit_vtable[c]->enumerate) | |
a16e1123 LP |
741 | if ((q = unit_vtable[c]->enumerate(m)) < 0) |
742 | r = q; | |
f50e0a01 LP |
743 | |
744 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
745 | return r; |
746 | } | |
747 | ||
748 | int manager_coldplug(Manager *m) { | |
749 | int r = 0, q; | |
750 | Iterator i; | |
751 | Unit *u; | |
752 | char *k; | |
753 | ||
754 | assert(m); | |
f50e0a01 LP |
755 | |
756 | /* Then, let's set up their initial state. */ | |
757 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
758 | ||
759 | /* ignore aliases */ | |
ac155bb8 | 760 | if (u->id != k) |
f50e0a01 LP |
761 | continue; |
762 | ||
cca098b0 LP |
763 | if ((q = unit_coldplug(u)) < 0) |
764 | r = q; | |
f50e0a01 LP |
765 | } |
766 | ||
a16e1123 LP |
767 | return r; |
768 | } | |
769 | ||
fe51822e LP |
770 | static void manager_build_unit_path_cache(Manager *m) { |
771 | char **i; | |
7fd1b19b | 772 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
773 | int r; |
774 | ||
775 | assert(m); | |
776 | ||
777 | set_free_free(m->unit_path_cache); | |
778 | ||
874310b7 ZJS |
779 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
780 | if (!m->unit_path_cache) { | |
fe51822e LP |
781 | log_error("Failed to allocate unit path cache."); |
782 | return; | |
783 | } | |
784 | ||
785 | /* This simply builds a list of files we know exist, so that | |
786 | * we don't always have to go to disk */ | |
787 | ||
788 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
789 | struct dirent *de; | |
790 | ||
bd0af849 ZJS |
791 | d = opendir(*i); |
792 | if (!d) { | |
874310b7 ZJS |
793 | if (errno != ENOENT) |
794 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
795 | continue; |
796 | } | |
797 | ||
798 | while ((de = readdir(d))) { | |
799 | char *p; | |
800 | ||
801 | if (ignore_file(de->d_name)) | |
802 | continue; | |
803 | ||
b7def684 | 804 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 805 | if (!p) { |
fe51822e LP |
806 | r = -ENOMEM; |
807 | goto fail; | |
808 | } | |
809 | ||
ef42202a ZJS |
810 | r = set_consume(m->unit_path_cache, p); |
811 | if (r < 0) | |
fe51822e | 812 | goto fail; |
fe51822e LP |
813 | } |
814 | ||
815 | closedir(d); | |
816 | d = NULL; | |
817 | } | |
818 | ||
819 | return; | |
820 | ||
821 | fail: | |
822 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
823 | ||
824 | set_free_free(m->unit_path_cache); | |
825 | m->unit_path_cache = NULL; | |
fe51822e LP |
826 | } |
827 | ||
a16e1123 LP |
828 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
829 | int r, q; | |
830 | ||
831 | assert(m); | |
832 | ||
518d10e9 | 833 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 834 | manager_run_generators(m); |
518d10e9 | 835 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 836 | |
07719a21 LP |
837 | r = lookup_paths_init( |
838 | &m->lookup_paths, m->running_as, true, | |
839 | m->generator_unit_path, | |
840 | m->generator_unit_path_early, | |
841 | m->generator_unit_path_late); | |
842 | if (r < 0) | |
843 | return r; | |
844 | ||
fe51822e LP |
845 | manager_build_unit_path_cache(m); |
846 | ||
9f611ad8 LP |
847 | /* If we will deserialize make sure that during enumeration |
848 | * this is already known, so we increase the counter here | |
849 | * already */ | |
850 | if (serialization) | |
a7556052 | 851 | m->n_reloading ++; |
9f611ad8 | 852 | |
a16e1123 | 853 | /* First, enumerate what we can from all config files */ |
d9acfb71 | 854 | dual_timestamp_get(&m->unitsload_start_timestamp); |
a16e1123 | 855 | r = manager_enumerate(m); |
d9acfb71 | 856 | dual_timestamp_get(&m->unitsload_finish_timestamp); |
a16e1123 LP |
857 | |
858 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
859 | if (serialization) { |
860 | q = manager_deserialize(m, serialization, fds); | |
861 | if (q < 0) | |
a16e1123 | 862 | r = q; |
07719a21 | 863 | } |
a16e1123 | 864 | |
01e10de3 LP |
865 | /* Any fds left? Find some unit which wants them. This is |
866 | * useful to allow container managers to pass some file | |
867 | * descriptors to us pre-initialized. This enables | |
868 | * socket-based activation of entire containers. */ | |
869 | if (fdset_size(fds) > 0) { | |
870 | q = manager_distribute_fds(m, fds); | |
871 | if (q < 0) | |
872 | r = q; | |
873 | } | |
874 | ||
a16e1123 | 875 | /* Third, fire things up! */ |
07719a21 LP |
876 | q = manager_coldplug(m); |
877 | if (q < 0) | |
a16e1123 LP |
878 | r = q; |
879 | ||
9f611ad8 | 880 | if (serialization) { |
a7556052 LP |
881 | assert(m->n_reloading > 0); |
882 | m->n_reloading --; | |
9f611ad8 LP |
883 | } |
884 | ||
a16e1123 | 885 | return r; |
f50e0a01 LP |
886 | } |
887 | ||
398ef8ba | 888 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 889 | int r; |
7527cb52 | 890 | Transaction *tr; |
e5b5ae50 LP |
891 | |
892 | assert(m); | |
893 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 894 | assert(unit); |
e5b5ae50 | 895 | assert(mode < _JOB_MODE_MAX); |
60918275 | 896 | |
398ef8ba LP |
897 | if (mode == JOB_ISOLATE && type != JOB_START) { |
898 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 899 | return -EINVAL; |
398ef8ba | 900 | } |
c497c7a9 | 901 | |
ac155bb8 | 902 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
903 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
904 | return -EPERM; | |
905 | } | |
906 | ||
66870f90 ZJS |
907 | log_debug_unit(unit->id, |
908 | "Trying to enqueue job %s/%s/%s", unit->id, | |
909 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 910 | |
e0209d83 MS |
911 | job_type_collapse(&type, unit); |
912 | ||
23ade460 | 913 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
914 | if (!tr) |
915 | return -ENOMEM; | |
11dd41ce | 916 | |
7527cb52 MS |
917 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
918 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 919 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
920 | if (r < 0) |
921 | goto tr_abort; | |
c497c7a9 | 922 | |
7527cb52 MS |
923 | if (mode == JOB_ISOLATE) { |
924 | r = transaction_add_isolate_jobs(tr, m); | |
925 | if (r < 0) | |
926 | goto tr_abort; | |
927 | } | |
928 | ||
929 | r = transaction_activate(tr, m, mode, e); | |
930 | if (r < 0) | |
931 | goto tr_abort; | |
e5b5ae50 | 932 | |
66870f90 ZJS |
933 | log_debug_unit(unit->id, |
934 | "Enqueued job %s/%s as %u", unit->id, | |
935 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 936 | |
e5b5ae50 | 937 | if (_ret) |
b94fbd30 | 938 | *_ret = tr->anchor_job; |
60918275 | 939 | |
7527cb52 | 940 | transaction_free(tr); |
e5b5ae50 | 941 | return 0; |
7527cb52 MS |
942 | |
943 | tr_abort: | |
944 | transaction_abort(tr); | |
945 | transaction_free(tr); | |
946 | return r; | |
e5b5ae50 | 947 | } |
60918275 | 948 | |
398ef8ba | 949 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
950 | Unit *unit; |
951 | int r; | |
952 | ||
953 | assert(m); | |
954 | assert(type < _JOB_TYPE_MAX); | |
955 | assert(name); | |
956 | assert(mode < _JOB_MODE_MAX); | |
957 | ||
c3090674 LP |
958 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
959 | if (r < 0) | |
28247076 LP |
960 | return r; |
961 | ||
398ef8ba | 962 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
963 | } |
964 | ||
60918275 LP |
965 | Job *manager_get_job(Manager *m, uint32_t id) { |
966 | assert(m); | |
967 | ||
968 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
969 | } | |
970 | ||
87f0e418 | 971 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
972 | assert(m); |
973 | assert(name); | |
974 | ||
87f0e418 | 975 | return hashmap_get(m->units, name); |
60918275 LP |
976 | } |
977 | ||
c1e1601e | 978 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 979 | Unit *u; |
c1e1601e | 980 | unsigned n = 0; |
60918275 LP |
981 | |
982 | assert(m); | |
983 | ||
223dabab LP |
984 | /* Make sure we are not run recursively */ |
985 | if (m->dispatching_load_queue) | |
c1e1601e | 986 | return 0; |
223dabab LP |
987 | |
988 | m->dispatching_load_queue = true; | |
989 | ||
87f0e418 | 990 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
991 | * tries to load its data until the queue is empty */ |
992 | ||
595ed347 MS |
993 | while ((u = m->load_queue)) { |
994 | assert(u->in_load_queue); | |
034c6ed7 | 995 | |
595ed347 | 996 | unit_load(u); |
c1e1601e | 997 | n++; |
60918275 LP |
998 | } |
999 | ||
223dabab | 1000 | m->dispatching_load_queue = false; |
c1e1601e | 1001 | return n; |
60918275 LP |
1002 | } |
1003 | ||
398ef8ba | 1004 | int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
87f0e418 | 1005 | Unit *ret; |
7d17cfbc | 1006 | UnitType t; |
60918275 LP |
1007 | int r; |
1008 | ||
1009 | assert(m); | |
9e2f7c11 | 1010 | assert(name || path); |
60918275 | 1011 | |
db06e3b6 LP |
1012 | /* This will prepare the unit for loading, but not actually |
1013 | * load anything from disk. */ | |
0301abf4 | 1014 | |
398ef8ba LP |
1015 | if (path && !is_path(path)) { |
1016 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 1017 | return -EINVAL; |
398ef8ba | 1018 | } |
9e2f7c11 LP |
1019 | |
1020 | if (!name) | |
9eb977db | 1021 | name = path_get_file_name(path); |
9e2f7c11 | 1022 | |
7d17cfbc MS |
1023 | t = unit_name_to_type(name); |
1024 | ||
5f739699 | 1025 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 1026 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 1027 | return -EINVAL; |
398ef8ba | 1028 | } |
60918275 | 1029 | |
7d17cfbc MS |
1030 | ret = manager_get_unit(m, name); |
1031 | if (ret) { | |
034c6ed7 | 1032 | *_ret = ret; |
413d6313 | 1033 | return 1; |
034c6ed7 | 1034 | } |
60918275 | 1035 | |
7d17cfbc MS |
1036 | ret = unit_new(m, unit_vtable[t]->object_size); |
1037 | if (!ret) | |
60918275 LP |
1038 | return -ENOMEM; |
1039 | ||
7d17cfbc | 1040 | if (path) { |
ac155bb8 MS |
1041 | ret->fragment_path = strdup(path); |
1042 | if (!ret->fragment_path) { | |
0301abf4 LP |
1043 | unit_free(ret); |
1044 | return -ENOMEM; | |
1045 | } | |
7d17cfbc | 1046 | } |
0301abf4 | 1047 | |
1058cbf2 ZJS |
1048 | r = unit_add_name(ret, name); |
1049 | if (r < 0) { | |
87f0e418 | 1050 | unit_free(ret); |
1ffba6fe | 1051 | return r; |
60918275 LP |
1052 | } |
1053 | ||
87f0e418 | 1054 | unit_add_to_load_queue(ret); |
c1e1601e | 1055 | unit_add_to_dbus_queue(ret); |
949061f0 | 1056 | unit_add_to_gc_queue(ret); |
c1e1601e | 1057 | |
db06e3b6 LP |
1058 | if (_ret) |
1059 | *_ret = ret; | |
1060 | ||
1061 | return 0; | |
1062 | } | |
1063 | ||
398ef8ba | 1064 | int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
db06e3b6 LP |
1065 | int r; |
1066 | ||
1067 | assert(m); | |
1068 | ||
1069 | /* This will load the service information files, but not actually | |
1070 | * start any services or anything. */ | |
1071 | ||
c3090674 LP |
1072 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1073 | if (r != 0) | |
db06e3b6 LP |
1074 | return r; |
1075 | ||
f50e0a01 | 1076 | manager_dispatch_load_queue(m); |
60918275 | 1077 | |
9e2f7c11 | 1078 | if (_ret) |
413d6313 | 1079 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1080 | |
60918275 LP |
1081 | return 0; |
1082 | } | |
a66d02c3 | 1083 | |
cea8e32e | 1084 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1085 | Iterator i; |
a66d02c3 LP |
1086 | Job *j; |
1087 | ||
1088 | assert(s); | |
1089 | assert(f); | |
1090 | ||
034c6ed7 | 1091 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1092 | job_dump(j, f, prefix); |
a66d02c3 LP |
1093 | } |
1094 | ||
87f0e418 | 1095 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1096 | Iterator i; |
87f0e418 | 1097 | Unit *u; |
11dd41ce | 1098 | const char *t; |
a66d02c3 LP |
1099 | |
1100 | assert(s); | |
1101 | assert(f); | |
1102 | ||
87f0e418 | 1103 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1104 | if (u->id == t) |
87f0e418 | 1105 | unit_dump(u, f, prefix); |
a66d02c3 | 1106 | } |
7fad411c LP |
1107 | |
1108 | void manager_clear_jobs(Manager *m) { | |
1109 | Job *j; | |
1110 | ||
1111 | assert(m); | |
1112 | ||
7fad411c | 1113 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1114 | /* No need to recurse. We're cancelling all jobs. */ |
1115 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1116 | } |
83c60c9f | 1117 | |
c1e1601e | 1118 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1119 | Job *j; |
c1e1601e | 1120 | unsigned n = 0; |
83c60c9f | 1121 | |
034c6ed7 | 1122 | if (m->dispatching_run_queue) |
c1e1601e | 1123 | return 0; |
034c6ed7 LP |
1124 | |
1125 | m->dispatching_run_queue = true; | |
9152c765 | 1126 | |
034c6ed7 | 1127 | while ((j = m->run_queue)) { |
ac1135be | 1128 | assert(j->installed); |
034c6ed7 LP |
1129 | assert(j->in_run_queue); |
1130 | ||
1131 | job_run_and_invalidate(j); | |
c1e1601e | 1132 | n++; |
9152c765 | 1133 | } |
034c6ed7 LP |
1134 | |
1135 | m->dispatching_run_queue = false; | |
03b717a3 | 1136 | |
a0b64226 | 1137 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1138 | manager_watch_jobs_in_progress(m); |
1139 | ||
c1e1601e LP |
1140 | return n; |
1141 | } | |
1142 | ||
1143 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
1144 | Job *j; | |
595ed347 | 1145 | Unit *u; |
c1e1601e LP |
1146 | unsigned n = 0; |
1147 | ||
1148 | assert(m); | |
1149 | ||
1150 | if (m->dispatching_dbus_queue) | |
1151 | return 0; | |
1152 | ||
1153 | m->dispatching_dbus_queue = true; | |
1154 | ||
595ed347 MS |
1155 | while ((u = m->dbus_unit_queue)) { |
1156 | assert(u->in_dbus_queue); | |
c1e1601e | 1157 | |
595ed347 | 1158 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1159 | n++; |
1160 | } | |
1161 | ||
1162 | while ((j = m->dbus_job_queue)) { | |
1163 | assert(j->in_dbus_queue); | |
1164 | ||
1165 | bus_job_send_change_signal(j); | |
1166 | n++; | |
1167 | } | |
1168 | ||
1169 | m->dispatching_dbus_queue = false; | |
1170 | return n; | |
9152c765 LP |
1171 | } |
1172 | ||
8c47c732 LP |
1173 | static int manager_process_notify_fd(Manager *m) { |
1174 | ssize_t n; | |
1175 | ||
1176 | assert(m); | |
1177 | ||
1178 | for (;;) { | |
1179 | char buf[4096]; | |
b92bea5d ZJS |
1180 | struct iovec iovec = { |
1181 | .iov_base = buf, | |
1182 | .iov_len = sizeof(buf)-1, | |
1183 | }; | |
1184 | ||
8c47c732 LP |
1185 | union { |
1186 | struct cmsghdr cmsghdr; | |
1187 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1188 | } control = {}; |
1189 | ||
1190 | struct msghdr msghdr = { | |
1191 | .msg_iov = &iovec, | |
1192 | .msg_iovlen = 1, | |
1193 | .msg_control = &control, | |
1194 | .msg_controllen = sizeof(control), | |
1195 | }; | |
1196 | struct ucred *ucred; | |
8c47c732 | 1197 | Unit *u; |
7fd1b19b | 1198 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1199 | |
bd0af849 ZJS |
1200 | n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT); |
1201 | if (n <= 0) { | |
b92bea5d | 1202 | if (n == 0) |
8c47c732 LP |
1203 | return -EIO; |
1204 | ||
f6144808 | 1205 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1206 | break; |
1207 | ||
1208 | return -errno; | |
1209 | } | |
1210 | ||
1211 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1212 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1213 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1214 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1215 | log_warning("Received notify message without credentials. Ignoring."); | |
1216 | continue; | |
1217 | } | |
1218 | ||
1219 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1220 | ||
bd0af849 ZJS |
1221 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1222 | if (!u) { | |
1223 | u = cgroup_unit_by_pid(m, ucred->pid); | |
1224 | if (!u) { | |
7989e1f2 | 1225 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1226 | continue; |
1227 | } | |
bd0af849 | 1228 | } |
8c47c732 | 1229 | |
8c40acf7 LP |
1230 | assert((size_t) n < sizeof(buf)); |
1231 | buf[n] = 0; | |
bd0af849 ZJS |
1232 | tags = strv_split(buf, "\n\r"); |
1233 | if (!tags) | |
1234 | return log_oom(); | |
8c47c732 | 1235 | |
66870f90 | 1236 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1237 | |
1238 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1239 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1240 | } |
1241 | ||
1242 | return 0; | |
1243 | } | |
1244 | ||
034c6ed7 | 1245 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1246 | assert(m); |
1247 | ||
1248 | for (;;) { | |
b92bea5d | 1249 | siginfo_t si = {}; |
87f0e418 | 1250 | Unit *u; |
8c47c732 | 1251 | int r; |
9152c765 | 1252 | |
4112df16 LP |
1253 | /* First we call waitd() for a PID and do not reap the |
1254 | * zombie. That way we can still access /proc/$PID for | |
1255 | * it while it is a zombie. */ | |
1256 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1257 | |
1258 | if (errno == ECHILD) | |
1259 | break; | |
1260 | ||
4112df16 LP |
1261 | if (errno == EINTR) |
1262 | continue; | |
1263 | ||
9152c765 | 1264 | return -errno; |
acbb0225 | 1265 | } |
9152c765 | 1266 | |
4112df16 | 1267 | if (si.si_pid <= 0) |
9152c765 LP |
1268 | break; |
1269 | ||
15d5d9d9 | 1270 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1271 | _cleanup_free_ char *name = NULL; |
4112df16 | 1272 | |
87d2c1ff | 1273 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1274 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1275 | } |
1276 | ||
8c47c732 LP |
1277 | /* Let's flush any message the dying child might still |
1278 | * have queued for us. This ensures that the process | |
1279 | * still exists in /proc so that we can figure out | |
1280 | * which cgroup and hence unit it belongs to. */ | |
bd0af849 ZJS |
1281 | r = manager_process_notify_fd(m); |
1282 | if (r < 0) | |
8c47c732 LP |
1283 | return r; |
1284 | ||
1285 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1286 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1287 | if (!u) | |
8c47c732 LP |
1288 | u = cgroup_unit_by_pid(m, si.si_pid); |
1289 | ||
4112df16 LP |
1290 | /* And now, we actually reap the zombie. */ |
1291 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1292 | if (errno == EINTR) | |
1293 | continue; | |
1294 | ||
1295 | return -errno; | |
1296 | } | |
1297 | ||
034c6ed7 LP |
1298 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1299 | continue; | |
1300 | ||
bb00e604 LP |
1301 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1302 | (long unsigned) si.si_pid, | |
4112df16 LP |
1303 | sigchld_code_to_string(si.si_code), |
1304 | si.si_status, | |
d06dacd0 LP |
1305 | strna(si.si_code == CLD_EXITED |
1306 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1307 | : signal_to_string(si.si_status))); | |
acbb0225 | 1308 | |
8c47c732 | 1309 | if (!u) |
9152c765 LP |
1310 | continue; |
1311 | ||
66870f90 ZJS |
1312 | log_debug_unit(u->id, |
1313 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1314 | |
c6c18be3 | 1315 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1316 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1317 | } |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
7d793605 | 1322 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1323 | int r; |
398ef8ba LP |
1324 | DBusError error; |
1325 | ||
1326 | dbus_error_init(&error); | |
1327 | ||
66870f90 | 1328 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1329 | |
bd0af849 ZJS |
1330 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1331 | if (r < 0) | |
66870f90 ZJS |
1332 | log_error_unit(name, |
1333 | "Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1334 | |
398ef8ba | 1335 | dbus_error_free(&error); |
a1b256b0 LP |
1336 | |
1337 | return r; | |
28247076 LP |
1338 | } |
1339 | ||
a16e1123 | 1340 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1341 | ssize_t n; |
1342 | struct signalfd_siginfo sfsi; | |
1343 | bool sigchld = false; | |
1344 | ||
1345 | assert(m); | |
1346 | ||
1347 | for (;;) { | |
57cb4adf LP |
1348 | n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi)); |
1349 | if (n != sizeof(sfsi)) { | |
9152c765 LP |
1350 | |
1351 | if (n >= 0) | |
1352 | return -EIO; | |
1353 | ||
63090775 | 1354 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1355 | break; |
9152c765 LP |
1356 | |
1357 | return -errno; | |
1358 | } | |
1359 | ||
67370238 LP |
1360 | if (sfsi.ssi_pid > 0) { |
1361 | char *p = NULL; | |
1362 | ||
87d2c1ff | 1363 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1364 | |
67370238 | 1365 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1366 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1367 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1368 | free(p); | |
1369 | } else | |
4e240ab0 | 1370 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1371 | |
b9cd2ec1 LP |
1372 | switch (sfsi.ssi_signo) { |
1373 | ||
4112df16 | 1374 | case SIGCHLD: |
9152c765 | 1375 | sigchld = true; |
b9cd2ec1 LP |
1376 | break; |
1377 | ||
6632c602 | 1378 | case SIGTERM: |
67445f4e | 1379 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1380 | /* This is for compatibility with the |
1381 | * original sysvinit */ | |
e11dc4a2 | 1382 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1383 | break; |
1384 | } | |
84e9af1e | 1385 | |
a1b256b0 | 1386 | /* Fall through */ |
e11dc4a2 LP |
1387 | |
1388 | case SIGINT: | |
67445f4e | 1389 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1390 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1391 | break; |
1392 | } | |
1393 | ||
a1b256b0 | 1394 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1395 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1396 | m->exit_code = MANAGER_EXIT; |
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | break; | |
84e9af1e | 1401 | |
28247076 | 1402 | case SIGWINCH: |
67445f4e | 1403 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1404 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1405 | |
28247076 LP |
1406 | /* This is a nop on non-init */ |
1407 | break; | |
84e9af1e | 1408 | |
28247076 | 1409 | case SIGPWR: |
67445f4e | 1410 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1411 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1412 | |
28247076 | 1413 | /* This is a nop on non-init */ |
84e9af1e | 1414 | break; |
6632c602 | 1415 | |
1005d14f | 1416 | case SIGUSR1: { |
57ee42ce LP |
1417 | Unit *u; |
1418 | ||
1419 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1420 | ||
1421 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1422 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1423 | bus_init(m, true); |
57ee42ce LP |
1424 | } |
1425 | ||
1426 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1427 | log_info("Loading D-Bus service..."); | |
7d793605 | 1428 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1429 | } |
1430 | ||
1431 | break; | |
1432 | } | |
1433 | ||
2149e37c LP |
1434 | case SIGUSR2: { |
1435 | FILE *f; | |
1436 | char *dump = NULL; | |
1437 | size_t size; | |
1438 | ||
1439 | if (!(f = open_memstream(&dump, &size))) { | |
1440 | log_warning("Failed to allocate memory stream."); | |
1441 | break; | |
1442 | } | |
1443 | ||
1444 | manager_dump_units(m, f, "\t"); | |
1445 | manager_dump_jobs(m, f, "\t"); | |
1446 | ||
1447 | if (ferror(f)) { | |
1448 | fclose(f); | |
1449 | free(dump); | |
1450 | log_warning("Failed to write status stream"); | |
1451 | break; | |
1452 | } | |
1453 | ||
1454 | fclose(f); | |
1455 | log_dump(LOG_INFO, dump); | |
1456 | free(dump); | |
1457 | ||
1005d14f | 1458 | break; |
2149e37c | 1459 | } |
1005d14f | 1460 | |
a16e1123 LP |
1461 | case SIGHUP: |
1462 | m->exit_code = MANAGER_RELOAD; | |
1463 | break; | |
1464 | ||
7d793605 | 1465 | default: { |
253ee27a | 1466 | |
0003d1ab LP |
1467 | /* Starting SIGRTMIN+0 */ |
1468 | static const char * const target_table[] = { | |
7d793605 LP |
1469 | [0] = SPECIAL_DEFAULT_TARGET, |
1470 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1471 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1472 | [3] = SPECIAL_HALT_TARGET, |
1473 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1474 | [5] = SPECIAL_REBOOT_TARGET, |
1475 | [6] = SPECIAL_KEXEC_TARGET | |
1476 | }; | |
1477 | ||
1478 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1479 | static const ManagerExitCode code_table[] = { | |
1480 | [0] = MANAGER_HALT, | |
1481 | [1] = MANAGER_POWEROFF, | |
1482 | [2] = MANAGER_REBOOT, | |
1483 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1484 | }; |
1485 | ||
1486 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1487 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1488 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1489 | manager_start_target(m, target_table[idx], | |
1490 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1491 | break; |
1492 | } | |
1493 | ||
0003d1ab LP |
1494 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1495 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1496 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1497 | break; | |
1498 | } | |
1499 | ||
0658666b LP |
1500 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1501 | ||
1502 | case 20: | |
1503 | log_debug("Enabling showing of status."); | |
27d340c7 | 1504 | manager_set_show_status(m, true); |
0658666b LP |
1505 | break; |
1506 | ||
1507 | case 21: | |
1508 | log_debug("Disabling showing of status."); | |
27d340c7 | 1509 | manager_set_show_status(m, false); |
0658666b LP |
1510 | break; |
1511 | ||
253ee27a LP |
1512 | case 22: |
1513 | log_set_max_level(LOG_DEBUG); | |
1514 | log_notice("Setting log level to debug."); | |
1515 | break; | |
1516 | ||
1517 | case 23: | |
1518 | log_set_max_level(LOG_INFO); | |
1519 | log_notice("Setting log level to info."); | |
1520 | break; | |
1521 | ||
600b704e LP |
1522 | case 24: |
1523 | if (m->running_as == SYSTEMD_USER) { | |
1524 | m->exit_code = MANAGER_EXIT; | |
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | /* This is a nop on init */ | |
1529 | break; | |
1530 | ||
4cfa2c99 LP |
1531 | case 26: |
1532 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1533 | log_notice("Setting log target to journal-or-kmsg."); | |
1534 | break; | |
1535 | ||
253ee27a LP |
1536 | case 27: |
1537 | log_set_target(LOG_TARGET_CONSOLE); | |
1538 | log_notice("Setting log target to console."); | |
1539 | break; | |
1540 | ||
1541 | case 28: | |
1542 | log_set_target(LOG_TARGET_KMSG); | |
1543 | log_notice("Setting log target to kmsg."); | |
1544 | break; | |
1545 | ||
1546 | case 29: | |
1547 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1548 | log_notice("Setting log target to syslog-or-kmsg."); | |
1549 | break; | |
1550 | ||
0658666b | 1551 | default: |
4e240ab0 | 1552 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1553 | } |
b9cd2ec1 | 1554 | } |
7d793605 | 1555 | } |
9152c765 LP |
1556 | } |
1557 | ||
1558 | if (sigchld) | |
034c6ed7 LP |
1559 | return manager_dispatch_sigchld(m); |
1560 | ||
1561 | return 0; | |
1562 | } | |
1563 | ||
a16e1123 | 1564 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1565 | int r; |
acbb0225 | 1566 | Watch *w; |
034c6ed7 LP |
1567 | |
1568 | assert(m); | |
1569 | assert(ev); | |
1570 | ||
3df5bf61 | 1571 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1572 | |
40dde66f LP |
1573 | if (w->type == WATCH_INVALID) |
1574 | return 0; | |
1575 | ||
acbb0225 | 1576 | switch (w->type) { |
034c6ed7 | 1577 | |
ef734fd6 | 1578 | case WATCH_SIGNAL: |
034c6ed7 | 1579 | |
acbb0225 | 1580 | /* An incoming signal? */ |
f94ea366 | 1581 | if (ev->events != EPOLLIN) |
acbb0225 | 1582 | return -EINVAL; |
034c6ed7 | 1583 | |
a16e1123 | 1584 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1585 | return r; |
034c6ed7 | 1586 | |
acbb0225 | 1587 | break; |
034c6ed7 | 1588 | |
8c47c732 LP |
1589 | case WATCH_NOTIFY: |
1590 | ||
1591 | /* An incoming daemon notification event? */ | |
1592 | if (ev->events != EPOLLIN) | |
1593 | return -EINVAL; | |
1594 | ||
1595 | if ((r = manager_process_notify_fd(m)) < 0) | |
1596 | return r; | |
1597 | ||
1598 | break; | |
1599 | ||
acbb0225 | 1600 | case WATCH_FD: |
034c6ed7 | 1601 | |
acbb0225 | 1602 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1603 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1604 | break; |
034c6ed7 | 1605 | |
faf919f1 LP |
1606 | case WATCH_UNIT_TIMER: |
1607 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1608 | uint64_t v; |
1609 | ssize_t k; | |
034c6ed7 | 1610 | |
acbb0225 | 1611 | /* Some timer event, to be dispatched to the units */ |
68b29a9f LP |
1612 | k = read(w->fd, &v, sizeof(v)); |
1613 | if (k != sizeof(v)) { | |
034c6ed7 | 1614 | |
acbb0225 LP |
1615 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1616 | break; | |
034c6ed7 | 1617 | |
8742514c | 1618 | log_error("Failed to read timer event counter: %s", k < 0 ? strerror(-k) : "Short read"); |
acbb0225 | 1619 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1620 | } |
1621 | ||
faf919f1 LP |
1622 | if (w->type == WATCH_UNIT_TIMER) |
1623 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1624 | else | |
1625 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1626 | break; |
1627 | } | |
1628 | ||
ef734fd6 LP |
1629 | case WATCH_MOUNT: |
1630 | /* Some mount table change, intended for the mount subsystem */ | |
1631 | mount_fd_event(m, ev->events); | |
1632 | break; | |
1633 | ||
4e434314 LP |
1634 | case WATCH_SWAP: |
1635 | /* Some swap table change, intended for the swap subsystem */ | |
1636 | swap_fd_event(m, ev->events); | |
1637 | break; | |
1638 | ||
f94ea366 LP |
1639 | case WATCH_UDEV: |
1640 | /* Some notification from udev, intended for the device subsystem */ | |
1641 | device_fd_event(m, ev->events); | |
1642 | break; | |
1643 | ||
ea430986 LP |
1644 | case WATCH_DBUS_WATCH: |
1645 | bus_watch_event(m, w, ev->events); | |
1646 | break; | |
1647 | ||
1648 | case WATCH_DBUS_TIMEOUT: | |
1649 | bus_timeout_event(m, w, ev->events); | |
1650 | break; | |
1651 | ||
8742514c LP |
1652 | case WATCH_TIME_CHANGE: { |
1653 | Unit *u; | |
1654 | Iterator i; | |
1655 | ||
1656 | log_struct(LOG_INFO, | |
1657 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1658 | "MESSAGE=Time has been changed", | |
1659 | NULL); | |
1660 | ||
1661 | /* Restart the watch */ | |
f1324eaa ES |
1662 | epoll_ctl(m->epoll_fd, EPOLL_CTL_DEL, m->time_change_watch.fd, |
1663 | NULL); | |
8742514c LP |
1664 | close_nointr_nofail(m->time_change_watch.fd); |
1665 | watch_init(&m->time_change_watch); | |
1666 | manager_setup_time_change(m); | |
1667 | ||
1668 | HASHMAP_FOREACH(u, m->units, i) { | |
1669 | if (UNIT_VTABLE(u)->time_change) | |
1670 | UNIT_VTABLE(u)->time_change(u); | |
1671 | } | |
1672 | ||
1673 | break; | |
1674 | } | |
1675 | ||
03b717a3 MS |
1676 | case WATCH_JOBS_IN_PROGRESS: { |
1677 | uint64_t v; | |
1678 | ||
1679 | /* not interested in the data */ | |
1680 | read(w->fd, &v, sizeof(v)); | |
1681 | ||
1682 | manager_print_jobs_in_progress(m); | |
1683 | break; | |
1684 | } | |
1685 | ||
acbb0225 | 1686 | default: |
c5fd1e57 | 1687 | log_error("event type=%i", w->type); |
acbb0225 | 1688 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1689 | } |
9152c765 LP |
1690 | |
1691 | return 0; | |
1692 | } | |
1693 | ||
1694 | int manager_loop(Manager *m) { | |
1695 | int r; | |
9152c765 | 1696 | |
fac9f8df | 1697 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1698 | |
9152c765 | 1699 | assert(m); |
a16e1123 | 1700 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1701 | |
fe51822e LP |
1702 | /* Release the path cache */ |
1703 | set_free_free(m->unit_path_cache); | |
1704 | m->unit_path_cache = NULL; | |
1705 | ||
b0c918b9 LP |
1706 | manager_check_finished(m); |
1707 | ||
a4312405 LP |
1708 | /* There might still be some zombies hanging around from |
1709 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1710 | r = manager_dispatch_sigchld(m); |
1711 | if (r < 0) | |
a4312405 LP |
1712 | return r; |
1713 | ||
a16e1123 | 1714 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1715 | struct epoll_event event; |
1716 | int n; | |
c757a65b | 1717 | int wait_msec = -1; |
9152c765 | 1718 | |
67445f4e | 1719 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1720 | watchdog_ping(); |
1721 | ||
ea430986 LP |
1722 | if (!ratelimit_test(&rl)) { |
1723 | /* Yay, something is going seriously wrong, pause a little */ | |
1724 | log_warning("Looping too fast. Throttling execution a little."); | |
1725 | sleep(1); | |
e96d6be7 | 1726 | continue; |
ea430986 LP |
1727 | } |
1728 | ||
37a8e683 | 1729 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1730 | continue; |
1731 | ||
37a8e683 | 1732 | if (manager_dispatch_run_queue(m) > 0) |
701cc384 LP |
1733 | continue; |
1734 | ||
37a8e683 | 1735 | if (bus_dispatch(m) > 0) |
c1e1601e | 1736 | continue; |
034c6ed7 | 1737 | |
37a8e683 | 1738 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e LP |
1739 | continue; |
1740 | ||
37a8e683 | 1741 | if (manager_dispatch_gc_queue(m) > 0) |
c1e1601e LP |
1742 | continue; |
1743 | ||
1744 | if (manager_dispatch_dbus_queue(m) > 0) | |
ea430986 | 1745 | continue; |
ea430986 | 1746 | |
e04aad61 LP |
1747 | if (swap_dispatch_reload(m) > 0) |
1748 | continue; | |
1749 | ||
c757a65b | 1750 | /* Sleep for half the watchdog time */ |
67445f4e | 1751 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
c757a65b LP |
1752 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); |
1753 | if (wait_msec <= 0) | |
1754 | wait_msec = 1; | |
1755 | } else | |
1756 | wait_msec = -1; | |
1757 | ||
e96d6be7 LP |
1758 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1759 | if (n < 0) { | |
9152c765 | 1760 | |
6089f4a9 | 1761 | if (errno == EINTR) |
9152c765 LP |
1762 | continue; |
1763 | ||
1764 | return -errno; | |
e96d6be7 LP |
1765 | } else if (n == 0) |
1766 | continue; | |
9152c765 | 1767 | |
957ca890 | 1768 | assert(n == 1); |
b9cd2ec1 | 1769 | |
e96d6be7 LP |
1770 | r = process_event(m, &event); |
1771 | if (r < 0) | |
957ca890 | 1772 | return r; |
a16e1123 | 1773 | } |
957ca890 | 1774 | |
a16e1123 | 1775 | return m->exit_code; |
83c60c9f | 1776 | } |
ea430986 | 1777 | |
80fbf05e | 1778 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ea430986 LP |
1779 | char *n; |
1780 | Unit *u; | |
80fbf05e | 1781 | int r; |
ea430986 LP |
1782 | |
1783 | assert(m); | |
1784 | assert(s); | |
1785 | assert(_u); | |
1786 | ||
1787 | if (!startswith(s, "/org/freedesktop/systemd1/unit/")) | |
1788 | return -EINVAL; | |
1789 | ||
80fbf05e MS |
1790 | n = bus_path_unescape(s+31); |
1791 | if (!n) | |
ea430986 LP |
1792 | return -ENOMEM; |
1793 | ||
80fbf05e | 1794 | r = manager_load_unit(m, n, NULL, e, &u); |
ea430986 LP |
1795 | free(n); |
1796 | ||
80fbf05e MS |
1797 | if (r < 0) |
1798 | return r; | |
ea430986 LP |
1799 | |
1800 | *_u = u; | |
1801 | ||
1802 | return 0; | |
1803 | } | |
86fbf370 LP |
1804 | |
1805 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1806 | Job *j; | |
1807 | unsigned id; | |
1808 | int r; | |
1809 | ||
1810 | assert(m); | |
1811 | assert(s); | |
1812 | assert(_j); | |
1813 | ||
1814 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1815 | return -EINVAL; | |
1816 | ||
8742514c LP |
1817 | r = safe_atou(s + 30, &id); |
1818 | if (r < 0) | |
86fbf370 LP |
1819 | return r; |
1820 | ||
8742514c LP |
1821 | j = manager_get_job(m, id); |
1822 | if (!j) | |
86fbf370 LP |
1823 | return -ENOENT; |
1824 | ||
1825 | *_j = j; | |
1826 | ||
1827 | return 0; | |
1828 | } | |
dfcd764e | 1829 | |
4927fcae | 1830 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1831 | |
4927fcae LP |
1832 | #ifdef HAVE_AUDIT |
1833 | char *p; | |
c1165f82 | 1834 | int audit_fd; |
e537352b | 1835 | |
c1165f82 LP |
1836 | audit_fd = get_audit_fd(); |
1837 | if (audit_fd < 0) | |
e537352b LP |
1838 | return; |
1839 | ||
bbd3a7ba LP |
1840 | /* Don't generate audit events if the service was already |
1841 | * started and we're just deserializing */ | |
a7556052 | 1842 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1843 | return; |
1844 | ||
67445f4e | 1845 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1846 | return; |
1847 | ||
ac155bb8 | 1848 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1849 | return; |
1850 | ||
bd0af849 ZJS |
1851 | p = unit_name_to_prefix_and_instance(u->id); |
1852 | if (!p) { | |
66870f90 ZJS |
1853 | log_error_unit(u->id, |
1854 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1855 | return; |
1856 | } | |
1857 | ||
c1165f82 | 1858 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1859 | if (errno == EPERM) { |
1860 | /* We aren't allowed to send audit messages? | |
44785992 | 1861 | * Then let's not retry again. */ |
c1165f82 | 1862 | close_audit_fd(); |
44785992 LP |
1863 | } else |
1864 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1865 | } |
e537352b | 1866 | |
4927fcae LP |
1867 | free(p); |
1868 | #endif | |
e537352b | 1869 | |
e537352b LP |
1870 | } |
1871 | ||
e983b760 LP |
1872 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1873 | int fd = -1; | |
1874 | union sockaddr_union sa; | |
1875 | int n = 0; | |
1876 | char *message = NULL; | |
e983b760 LP |
1877 | |
1878 | /* Don't generate plymouth events if the service was already | |
1879 | * started and we're just deserializing */ | |
a7556052 | 1880 | if (m->n_reloading > 0) |
e983b760 LP |
1881 | return; |
1882 | ||
67445f4e | 1883 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1884 | return; |
1885 | ||
ac155bb8 MS |
1886 | if (u->type != UNIT_SERVICE && |
1887 | u->type != UNIT_MOUNT && | |
1888 | u->type != UNIT_SWAP) | |
e983b760 LP |
1889 | return; |
1890 | ||
1891 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1892 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1893 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1894 | if (fd < 0) { | |
e983b760 LP |
1895 | log_error("socket() failed: %m"); |
1896 | return; | |
1897 | } | |
1898 | ||
1899 | zero(sa); | |
1900 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1901 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1902 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1903 | |
1904 | if (errno != EPIPE && | |
1905 | errno != EAGAIN && | |
1906 | errno != ENOENT && | |
1907 | errno != ECONNREFUSED && | |
1908 | errno != ECONNRESET && | |
1909 | errno != ECONNABORTED) | |
1910 | log_error("connect() failed: %m"); | |
1911 | ||
1912 | goto finish; | |
1913 | } | |
1914 | ||
ac155bb8 | 1915 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1916 | log_oom(); |
e983b760 LP |
1917 | goto finish; |
1918 | } | |
1919 | ||
1920 | errno = 0; | |
bd40a2d8 | 1921 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1922 | |
1923 | if (errno != EPIPE && | |
1924 | errno != EAGAIN && | |
1925 | errno != ENOENT && | |
1926 | errno != ECONNREFUSED && | |
1927 | errno != ECONNRESET && | |
1928 | errno != ECONNABORTED) | |
1929 | log_error("Failed to write Plymouth message: %m"); | |
1930 | ||
1931 | goto finish; | |
1932 | } | |
1933 | ||
1934 | finish: | |
1935 | if (fd >= 0) | |
1936 | close_nointr_nofail(fd); | |
1937 | ||
1938 | free(message); | |
1939 | } | |
1940 | ||
05e343b7 LP |
1941 | void manager_dispatch_bus_name_owner_changed( |
1942 | Manager *m, | |
1943 | const char *name, | |
1944 | const char* old_owner, | |
1945 | const char *new_owner) { | |
1946 | ||
1947 | Unit *u; | |
1948 | ||
1949 | assert(m); | |
1950 | assert(name); | |
1951 | ||
1952 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1953 | return; | |
1954 | ||
1955 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1956 | } | |
1957 | ||
1958 | void manager_dispatch_bus_query_pid_done( | |
1959 | Manager *m, | |
1960 | const char *name, | |
1961 | pid_t pid) { | |
1962 | ||
1963 | Unit *u; | |
1964 | ||
1965 | assert(m); | |
1966 | assert(name); | |
1967 | assert(pid >= 1); | |
1968 | ||
1969 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1970 | return; | |
1971 | ||
1972 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
1973 | } | |
1974 | ||
d8d5ab98 | 1975 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1976 | char *path = NULL; |
a16e1123 LP |
1977 | int fd; |
1978 | FILE *f; | |
1979 | ||
1980 | assert(_f); | |
1981 | ||
67445f4e | 1982 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1983 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1984 | else |
1985 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1986 | |
b925e726 LP |
1987 | if (!path) |
1988 | return -ENOMEM; | |
a16e1123 | 1989 | |
5c0d398d LP |
1990 | RUN_WITH_UMASK(0077) { |
1991 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1992 | } | |
a16e1123 LP |
1993 | |
1994 | if (fd < 0) { | |
1995 | free(path); | |
1996 | return -errno; | |
1997 | } | |
1998 | ||
1999 | unlink(path); | |
2000 | ||
2001 | log_debug("Serializing state to %s", path); | |
2002 | free(path); | |
2003 | ||
01e10de3 LP |
2004 | f = fdopen(fd, "w+"); |
2005 | if (!f) | |
a16e1123 LP |
2006 | return -errno; |
2007 | ||
2008 | *_f = f; | |
2009 | ||
2010 | return 0; | |
2011 | } | |
2012 | ||
b3680f49 | 2013 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
2014 | Iterator i; |
2015 | Unit *u; | |
2016 | const char *t; | |
4a9fd066 | 2017 | char **e; |
a16e1123 LP |
2018 | int r; |
2019 | ||
2020 | assert(m); | |
2021 | assert(f); | |
2022 | assert(fds); | |
2023 | ||
a7556052 | 2024 | m->n_reloading ++; |
38c52d46 | 2025 | |
01d67b43 LP |
2026 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
2027 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
2028 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
2029 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 2030 | |
915b3753 LP |
2031 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
2032 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); | |
2033 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); | |
e9ddabc2 | 2034 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 2035 | |
26a1efdf | 2036 | if (!in_initrd()) { |
915b3753 | 2037 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 HH |
2038 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
2039 | } | |
47a483a1 | 2040 | |
b3680f49 HH |
2041 | if (!switching_root) { |
2042 | STRV_FOREACH(e, m->environment) { | |
2043 | _cleanup_free_ char *ce; | |
4a9fd066 | 2044 | |
b3680f49 HH |
2045 | ce = cescape(*e); |
2046 | if (ce) | |
2047 | fprintf(f, "env=%s\n", *e); | |
2048 | } | |
4a9fd066 OS |
2049 | } |
2050 | ||
f2382a94 LP |
2051 | fputc('\n', f); |
2052 | ||
a16e1123 | 2053 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2054 | if (u->id != t) |
a16e1123 LP |
2055 | continue; |
2056 | ||
2057 | if (!unit_can_serialize(u)) | |
2058 | continue; | |
2059 | ||
2060 | /* Start marker */ | |
ac155bb8 | 2061 | fputs(u->id, f); |
a16e1123 LP |
2062 | fputc('\n', f); |
2063 | ||
b3680f49 | 2064 | if ((r = unit_serialize(u, f, fds, !switching_root)) < 0) { |
a7556052 | 2065 | m->n_reloading --; |
a16e1123 | 2066 | return r; |
38c52d46 | 2067 | } |
a16e1123 LP |
2068 | } |
2069 | ||
a7556052 LP |
2070 | assert(m->n_reloading > 0); |
2071 | m->n_reloading --; | |
38c52d46 | 2072 | |
a16e1123 LP |
2073 | if (ferror(f)) |
2074 | return -EIO; | |
2075 | ||
b23de6af LP |
2076 | r = bus_fdset_add_all(m, fds); |
2077 | if (r < 0) | |
2078 | return r; | |
2079 | ||
a16e1123 LP |
2080 | return 0; |
2081 | } | |
2082 | ||
2083 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2084 | int r = 0; | |
2085 | ||
2086 | assert(m); | |
2087 | assert(f); | |
2088 | ||
2089 | log_debug("Deserializing state..."); | |
2090 | ||
a7556052 | 2091 | m->n_reloading ++; |
82c64bf5 | 2092 | |
10f8e83c | 2093 | for (;;) { |
20c03b7b | 2094 | char line[LINE_MAX], *l; |
10f8e83c LP |
2095 | |
2096 | if (!fgets(line, sizeof(line), f)) { | |
2097 | if (feof(f)) | |
2098 | r = 0; | |
2099 | else | |
2100 | r = -errno; | |
2101 | ||
2102 | goto finish; | |
2103 | } | |
2104 | ||
2105 | char_array_0(line); | |
2106 | l = strstrip(line); | |
2107 | ||
2108 | if (l[0] == 0) | |
2109 | break; | |
2110 | ||
01d67b43 LP |
2111 | if (startswith(l, "current-job-id=")) { |
2112 | uint32_t id; | |
2113 | ||
2114 | if (safe_atou32(l+15, &id) < 0) | |
2115 | log_debug("Failed to parse current job id value %s", l+15); | |
2116 | else | |
2117 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
2118 | } else if (startswith(l, "n-installed-jobs=")) { |
2119 | uint32_t n; | |
2120 | ||
2121 | if (safe_atou32(l+17, &n) < 0) | |
2122 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2123 | else | |
2124 | m->n_installed_jobs += n; | |
2125 | } else if (startswith(l, "n-failed-jobs=")) { | |
2126 | uint32_t n; | |
2127 | ||
2128 | if (safe_atou32(l+14, &n) < 0) | |
2129 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2130 | else | |
2131 | m->n_failed_jobs += n; | |
01d67b43 LP |
2132 | } else if (startswith(l, "taint-usr=")) { |
2133 | int b; | |
2134 | ||
2135 | if ((b = parse_boolean(l+10)) < 0) | |
2136 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2137 | else | |
2138 | m->taint_usr = m->taint_usr || b; | |
915b3753 LP |
2139 | } else if (startswith(l, "firmware-timestamp=")) |
2140 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2141 | else if (startswith(l, "loader-timestamp=")) | |
2142 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2143 | else if (startswith(l, "kernel-timestamp=")) | |
2144 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2145 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2146 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2147 | else if (startswith(l, "userspace-timestamp=")) |
2148 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2149 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2150 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
4a9fd066 OS |
2151 | else if (startswith(l, "env=")) { |
2152 | _cleanup_free_ char *uce = NULL; | |
2153 | char **e; | |
2154 | ||
2155 | uce = cunescape(l+4); | |
2156 | if (!uce) { | |
2157 | r = -ENOMEM; | |
2158 | goto finish; | |
2159 | } | |
2160 | ||
2161 | e = strv_env_set(m->environment, uce); | |
2162 | if (!e) { | |
2163 | r = -ENOMEM; | |
2164 | goto finish; | |
2165 | } | |
2166 | ||
2167 | strv_free(m->environment); | |
2168 | m->environment = e; | |
2169 | } else | |
10f8e83c LP |
2170 | log_debug("Unknown serialization item '%s'", l); |
2171 | } | |
2172 | ||
a16e1123 LP |
2173 | for (;;) { |
2174 | Unit *u; | |
2175 | char name[UNIT_NAME_MAX+2]; | |
2176 | ||
2177 | /* Start marker */ | |
2178 | if (!fgets(name, sizeof(name), f)) { | |
2179 | if (feof(f)) | |
10f8e83c LP |
2180 | r = 0; |
2181 | else | |
2182 | r = -errno; | |
a16e1123 | 2183 | |
82c64bf5 | 2184 | goto finish; |
a16e1123 LP |
2185 | } |
2186 | ||
2187 | char_array_0(name); | |
2188 | ||
bd0af849 ZJS |
2189 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2190 | if (r < 0) | |
82c64bf5 | 2191 | goto finish; |
a16e1123 | 2192 | |
01e10de3 LP |
2193 | r = unit_deserialize(u, f, fds); |
2194 | if (r < 0) | |
82c64bf5 | 2195 | goto finish; |
a16e1123 LP |
2196 | } |
2197 | ||
10f8e83c | 2198 | finish: |
82c64bf5 LP |
2199 | if (ferror(f)) { |
2200 | r = -EIO; | |
2201 | goto finish; | |
2202 | } | |
a16e1123 | 2203 | |
a7556052 LP |
2204 | assert(m->n_reloading > 0); |
2205 | m->n_reloading --; | |
82c64bf5 LP |
2206 | |
2207 | return r; | |
a16e1123 LP |
2208 | } |
2209 | ||
01e10de3 LP |
2210 | int manager_distribute_fds(Manager *m, FDSet *fds) { |
2211 | Unit *u; | |
2212 | Iterator i; | |
2213 | int r; | |
2214 | ||
2215 | assert(m); | |
2216 | ||
2217 | HASHMAP_FOREACH(u, m->units, i) { | |
2218 | ||
2219 | if (fdset_size(fds) <= 0) | |
2220 | break; | |
2221 | ||
2222 | if (UNIT_VTABLE(u)->distribute_fds) { | |
2223 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
2224 | if (r < 0) | |
2225 | return r; | |
2226 | } | |
2227 | } | |
2228 | ||
2229 | return 0; | |
2230 | } | |
2231 | ||
a16e1123 LP |
2232 | int manager_reload(Manager *m) { |
2233 | int r, q; | |
2234 | FILE *f; | |
2235 | FDSet *fds; | |
2236 | ||
2237 | assert(m); | |
2238 | ||
07719a21 LP |
2239 | r = manager_open_serialization(m, &f); |
2240 | if (r < 0) | |
a16e1123 LP |
2241 | return r; |
2242 | ||
a7556052 | 2243 | m->n_reloading ++; |
38c52d46 | 2244 | |
07719a21 LP |
2245 | fds = fdset_new(); |
2246 | if (!fds) { | |
a7556052 | 2247 | m->n_reloading --; |
a16e1123 LP |
2248 | r = -ENOMEM; |
2249 | goto finish; | |
2250 | } | |
2251 | ||
b3680f49 | 2252 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2253 | if (r < 0) { |
a7556052 | 2254 | m->n_reloading --; |
a16e1123 | 2255 | goto finish; |
38c52d46 | 2256 | } |
a16e1123 LP |
2257 | |
2258 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2259 | m->n_reloading --; |
a16e1123 LP |
2260 | r = -errno; |
2261 | goto finish; | |
2262 | } | |
2263 | ||
2264 | /* From here on there is no way back. */ | |
2265 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2266 | manager_undo_generators(m); |
84e3543e | 2267 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2268 | |
07719a21 | 2269 | /* Find new unit paths */ |
5a1e9937 LP |
2270 | manager_run_generators(m); |
2271 | ||
07719a21 LP |
2272 | q = lookup_paths_init( |
2273 | &m->lookup_paths, m->running_as, true, | |
2274 | m->generator_unit_path, | |
2275 | m->generator_unit_path_early, | |
2276 | m->generator_unit_path_late); | |
2277 | if (q < 0) | |
2278 | r = q; | |
2279 | ||
5a1e9937 LP |
2280 | manager_build_unit_path_cache(m); |
2281 | ||
a16e1123 | 2282 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2283 | q = manager_enumerate(m); |
2284 | if (q < 0) | |
a16e1123 LP |
2285 | r = q; |
2286 | ||
2287 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2288 | q = manager_deserialize(m, f, fds); |
2289 | if (q < 0) | |
a16e1123 LP |
2290 | r = q; |
2291 | ||
2292 | fclose(f); | |
2293 | f = NULL; | |
2294 | ||
2295 | /* Third, fire things up! */ | |
07719a21 LP |
2296 | q = manager_coldplug(m); |
2297 | if (q < 0) | |
a16e1123 LP |
2298 | r = q; |
2299 | ||
a7556052 LP |
2300 | assert(m->n_reloading > 0); |
2301 | m->n_reloading--; | |
9f611ad8 | 2302 | |
a16e1123 LP |
2303 | finish: |
2304 | if (f) | |
2305 | fclose(f); | |
2306 | ||
2307 | if (fds) | |
2308 | fdset_free(fds); | |
2309 | ||
2310 | return r; | |
2311 | } | |
2312 | ||
6084e22e | 2313 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2314 | Unit *u; |
2315 | ||
2316 | assert(m); | |
2317 | ||
2318 | /* Is the initial job still around? */ | |
bacbccb7 | 2319 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2320 | return true; |
2321 | ||
2322 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2323 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2324 | if (u) | |
ac155bb8 | 2325 | return !!u->job; |
9e58ff9c LP |
2326 | |
2327 | return false; | |
2328 | } | |
2329 | ||
c17ec25e MS |
2330 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2331 | assert(m); | |
2332 | ||
2333 | return m->n_reloading != 0; | |
2334 | } | |
2335 | ||
fdf20a31 | 2336 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2337 | Unit *u; |
2338 | Iterator i; | |
2339 | ||
2340 | assert(m); | |
2341 | ||
2342 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2343 | unit_reset_failed(u); |
5632e374 LP |
2344 | } |
2345 | ||
31afa0a4 | 2346 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2347 | Unit *u; |
2348 | ||
2349 | assert(m); | |
2350 | assert(name); | |
2351 | ||
2352 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2353 | u = manager_get_unit(m, name); |
2354 | if (!u) | |
8f6df3fa LP |
2355 | return true; |
2356 | ||
31afa0a4 | 2357 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2358 | } |
2359 | ||
b0c918b9 | 2360 | void manager_check_finished(Manager *m) { |
7ceba241 | 2361 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2362 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2363 | |
2364 | assert(m); | |
2365 | ||
a0b64226 MS |
2366 | if (m->n_running_jobs == 0) |
2367 | manager_unwatch_jobs_in_progress(m); | |
2368 | ||
5b176ee0 MS |
2369 | if (hashmap_size(m->jobs) > 0) { |
2370 | manager_jobs_in_progress_mod_timer(m); | |
b0c918b9 | 2371 | return; |
5b176ee0 | 2372 | } |
b0c918b9 | 2373 | |
f2b68789 LP |
2374 | /* Notify Type=idle units that we are done now */ |
2375 | close_pipe(m->idle_pipe); | |
2376 | ||
af6da548 LP |
2377 | /* Turn off confirm spawn now */ |
2378 | m->confirm_spawn = false; | |
2379 | ||
f2b68789 | 2380 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2381 | return; |
2382 | ||
2383 | dual_timestamp_get(&m->finish_timestamp); | |
2384 | ||
67445f4e | 2385 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2386 | |
915b3753 LP |
2387 | /* Note that m->kernel_usec.monotonic is always at 0, |
2388 | * and m->firmware_usec.monotonic and | |
2389 | * m->loader_usec.monotonic should be considered | |
2390 | * negative values. */ | |
2391 | ||
7ceba241 LP |
2392 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2393 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2394 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2395 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2396 | |
e9ddabc2 | 2397 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2398 | |
915b3753 LP |
2399 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2400 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2401 | |
81270860 LP |
2402 | if (!log_on_console()) |
2403 | log_struct(LOG_INFO, | |
1ca6783f | 2404 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2405 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2406 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2407 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2408 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2409 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2410 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2411 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2412 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2413 | NULL); |
18fa6b27 | 2414 | } else { |
915b3753 | 2415 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2416 | initrd_usec = 0; |
2417 | ||
81270860 LP |
2418 | if (!log_on_console()) |
2419 | log_struct(LOG_INFO, | |
1ca6783f | 2420 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2421 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2422 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2423 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2424 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2425 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2426 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2427 | NULL); |
18fa6b27 LP |
2428 | } |
2429 | } else { | |
915b3753 LP |
2430 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2431 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2432 | |
81270860 LP |
2433 | if (!log_on_console()) |
2434 | log_struct(LOG_INFO, | |
1ca6783f | 2435 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2436 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2437 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2438 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2439 | NULL); |
18fa6b27 | 2440 | } |
b0c918b9 | 2441 | |
915b3753 | 2442 | bus_broadcast_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2443 | |
2444 | sd_notifyf(false, | |
2445 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2446 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2447 | } |
2448 | ||
07719a21 LP |
2449 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2450 | char *p; | |
2451 | int r; | |
2452 | ||
2453 | assert(m); | |
2454 | assert(generator); | |
2455 | assert(name); | |
2456 | ||
2457 | if (*generator) | |
2458 | return 0; | |
2459 | ||
67445f4e | 2460 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2461 | |
2462 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2463 | if (!p) |
2464 | return log_oom(); | |
07719a21 | 2465 | |
d2e54fae | 2466 | r = mkdir_p_label(p, 0755); |
07719a21 | 2467 | if (r < 0) { |
7ad94c71 ZJS |
2468 | log_error("Failed to create generator directory %s: %s", |
2469 | p, strerror(-r)); | |
07719a21 LP |
2470 | free(p); |
2471 | return r; | |
2472 | } | |
2473 | } else { | |
b7def684 | 2474 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2475 | if (!p) |
2476 | return log_oom(); | |
07719a21 LP |
2477 | |
2478 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2479 | log_error("Failed to create generator directory %s: %m", |
2480 | p); | |
34bf0281 | 2481 | free(p); |
07719a21 LP |
2482 | return -errno; |
2483 | } | |
2484 | } | |
2485 | ||
2486 | *generator = p; | |
2487 | return 0; | |
2488 | } | |
2489 | ||
2490 | static void trim_generator_dir(Manager *m, char **generator) { | |
2491 | assert(m); | |
2492 | assert(generator); | |
2493 | ||
2494 | if (!*generator) | |
2495 | return; | |
2496 | ||
2497 | if (rmdir(*generator) >= 0) { | |
2498 | free(*generator); | |
2499 | *generator = NULL; | |
2500 | } | |
2501 | ||
2502 | return; | |
2503 | } | |
2504 | ||
5a1e9937 LP |
2505 | void manager_run_generators(Manager *m) { |
2506 | DIR *d = NULL; | |
5a1e9937 | 2507 | const char *generator_path; |
07719a21 | 2508 | const char *argv[5]; |
07719a21 | 2509 | int r; |
5a1e9937 LP |
2510 | |
2511 | assert(m); | |
2512 | ||
67445f4e | 2513 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2514 | d = opendir(generator_path); |
2515 | if (!d) { | |
5a1e9937 LP |
2516 | if (errno == ENOENT) |
2517 | return; | |
2518 | ||
7ad94c71 ZJS |
2519 | log_error("Failed to enumerate generator directory %s: %m", |
2520 | generator_path); | |
5a1e9937 LP |
2521 | return; |
2522 | } | |
2523 | ||
07719a21 LP |
2524 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2525 | if (r < 0) | |
2526 | goto finish; | |
f1d19aa4 | 2527 | |
07719a21 LP |
2528 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2529 | if (r < 0) | |
2530 | goto finish; | |
5a1e9937 | 2531 | |
07719a21 LP |
2532 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2533 | if (r < 0) | |
2534 | goto finish; | |
5a1e9937 | 2535 | |
83cc030f LP |
2536 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2537 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2538 | argv[2] = m->generator_unit_path_early; |
2539 | argv[3] = m->generator_unit_path_late; | |
2540 | argv[4] = NULL; | |
5a1e9937 | 2541 | |
5c0d398d LP |
2542 | RUN_WITH_UMASK(0022) { |
2543 | execute_directory(generator_path, d, (char**) argv); | |
2544 | } | |
5a1e9937 | 2545 | |
07719a21 LP |
2546 | trim_generator_dir(m, &m->generator_unit_path); |
2547 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2548 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2549 | |
2550 | finish: | |
2551 | if (d) | |
2552 | closedir(d); | |
5a1e9937 LP |
2553 | } |
2554 | ||
07719a21 | 2555 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2556 | assert(m); |
07719a21 | 2557 | assert(generator); |
5a1e9937 | 2558 | |
07719a21 | 2559 | if (!*generator) |
5a1e9937 LP |
2560 | return; |
2561 | ||
07719a21 LP |
2562 | strv_remove(m->lookup_paths.unit_path, *generator); |
2563 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2564 | |
07719a21 LP |
2565 | free(*generator); |
2566 | *generator = NULL; | |
2567 | } | |
2568 | ||
2569 | void manager_undo_generators(Manager *m) { | |
2570 | assert(m); | |
2571 | ||
2572 | remove_generator_dir(m, &m->generator_unit_path); | |
2573 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2574 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2575 | } |
2576 | ||
97d0e5f8 UTL |
2577 | int manager_set_default_environment(Manager *m, char **environment) { |
2578 | ||
2579 | char **e = NULL; | |
2580 | assert(m); | |
2581 | e = strv_env_merge(2, m->environment, environment); | |
2582 | if (!e) | |
2583 | return -ENOMEM; | |
2584 | strv_free(m->environment); | |
2585 | m->environment = e; | |
2586 | return 0; | |
2587 | } | |
2588 | ||
06d4c99a LP |
2589 | int manager_set_default_controllers(Manager *m, char **controllers) { |
2590 | char **l; | |
2591 | ||
2592 | assert(m); | |
2593 | ||
9156e799 LP |
2594 | l = strv_copy(controllers); |
2595 | if (!l) | |
06d4c99a LP |
2596 | return -ENOMEM; |
2597 | ||
2598 | strv_free(m->default_controllers); | |
2599 | m->default_controllers = l; | |
2600 | ||
b59e2465 | 2601 | cg_shorten_controllers(m->default_controllers); |
9156e799 | 2602 | |
06d4c99a LP |
2603 | return 0; |
2604 | } | |
2605 | ||
c93ff2e9 FC |
2606 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2607 | int i; | |
2608 | ||
2609 | assert(m); | |
2610 | ||
2611 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2612 | if (!default_rlimit[i]) |
2613 | continue; | |
c93ff2e9 | 2614 | |
07719a21 LP |
2615 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2616 | if (!m->rlimit[i]) | |
2617 | return -ENOMEM; | |
c93ff2e9 FC |
2618 | } |
2619 | ||
2620 | return 0; | |
2621 | } | |
2622 | ||
4cfa2c99 | 2623 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2624 | Unit *u; |
2625 | ||
2626 | assert(m); | |
2627 | ||
67445f4e | 2628 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2629 | return; |
2630 | ||
731a676c LP |
2631 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2632 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2633 | log_close_journal(); |
731a676c | 2634 | return; |
f1dd0c3f LP |
2635 | } |
2636 | ||
731a676c LP |
2637 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2638 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2639 | log_close_journal(); |
731a676c LP |
2640 | return; |
2641 | } | |
f1dd0c3f | 2642 | |
731a676c LP |
2643 | /* Hmm, OK, so the socket is fully up and the service is up |
2644 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2645 | log_open(); |
2646 | } | |
2647 | ||
27d340c7 LP |
2648 | void manager_set_show_status(Manager *m, bool b) { |
2649 | assert(m); | |
2650 | ||
67445f4e | 2651 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2652 | return; |
2653 | ||
2654 | m->show_status = b; | |
2655 | ||
2656 | if (b) | |
2657 | touch("/run/systemd/show-status"); | |
2658 | else | |
2659 | unlink("/run/systemd/show-status"); | |
2660 | } | |
2661 | ||
6084e22e | 2662 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2663 | assert(m); |
2664 | ||
67445f4e | 2665 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2666 | return false; |
2667 | ||
2668 | if (m->show_status) | |
2669 | return true; | |
2670 | ||
2671 | /* If Plymouth is running make sure we show the status, so | |
2672 | * that there's something nice to see when people press Esc */ | |
2673 | ||
2674 | return plymouth_running(); | |
2675 | } | |
68b29a9f | 2676 | |
984a2be4 | 2677 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2678 | va_list ap; |
2679 | ||
2680 | if (!manager_get_show_status(m)) | |
2681 | return; | |
2682 | ||
03b717a3 MS |
2683 | /* XXX We should totally drop the check for ephemeral here |
2684 | * and thus effectively make 'Type=idle' pointless. */ | |
2685 | if (ephemeral && m->n_on_console > 0) | |
2686 | return; | |
2687 | ||
25cee550 MS |
2688 | if (!manager_is_booting_or_shutting_down(m)) |
2689 | return; | |
2690 | ||
2691 | va_start(ap, format); | |
984a2be4 | 2692 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2693 | va_end(ap); |
2694 | } | |
2695 | ||
68b29a9f LP |
2696 | void watch_init(Watch *w) { |
2697 | assert(w); | |
2698 | ||
2699 | w->type = WATCH_INVALID; | |
2700 | w->fd = -1; | |
2701 | } |