]>
Commit | Line | Data |
---|---|---|
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 | |
718db961 LP |
45 | #include "sd-daemon.h" |
46 | #include "sd-id128.h" | |
47 | #include "sd-messages.h" | |
81527be1 | 48 | |
60918275 | 49 | #include "manager.h" |
75778e21 | 50 | #include "transaction.h" |
60918275 LP |
51 | #include "hashmap.h" |
52 | #include "macro.h" | |
53 | #include "strv.h" | |
16354eff | 54 | #include "log.h" |
2a987ee8 | 55 | #include "util.h" |
49e942b2 | 56 | #include "mkdir.h" |
ea430986 | 57 | #include "ratelimit.h" |
e21fea24 | 58 | #include "locale-setup.h" |
8e274523 | 59 | #include "mount-setup.h" |
9e2f7c11 | 60 | #include "unit-name.h" |
1137a57c | 61 | #include "missing.h" |
84e3543e | 62 | #include "path-lookup.h" |
514f4ef5 | 63 | #include "special.h" |
d06dacd0 | 64 | #include "exit-status.h" |
5dc4c17f | 65 | #include "virt.h" |
e96d6be7 | 66 | #include "watchdog.h" |
b59e2465 | 67 | #include "cgroup-util.h" |
9eb977db | 68 | #include "path-util.h" |
c1165f82 | 69 | #include "audit-fd.h" |
c51d84dc | 70 | #include "boot-timestamps.h" |
8b55b8c4 | 71 | #include "env-util.h" |
718db961 LP |
72 | #include "bus-errors.h" |
73 | #include "bus-error.h" | |
74 | #include "bus-util.h" | |
75 | #include "dbus.h" | |
76 | #include "dbus-unit.h" | |
77 | #include "dbus-job.h" | |
78 | #include "dbus-manager.h" | |
e3dd987c | 79 | #include "bus-kernel.h" |
60918275 | 80 | |
701cc384 | 81 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 82 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 83 | |
03b717a3 MS |
84 | /* Initial delay and the interval for printing status messages about running jobs */ |
85 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
86 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
87 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
88 | ||
8c47c732 | 89 | /* Where clients shall send notification messages to */ |
29252e9e | 90 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 91 | |
c3e31c7b ZJS |
92 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
93 | ||
718db961 LP |
94 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
95 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
96 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
97 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
98 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 99 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 100 | |
8c47c732 LP |
101 | static int manager_setup_notify(Manager *m) { |
102 | union { | |
103 | struct sockaddr sa; | |
104 | struct sockaddr_un un; | |
b92bea5d ZJS |
105 | } sa = { |
106 | .sa.sa_family = AF_UNIX, | |
107 | }; | |
e62d8c39 | 108 | int one = 1, r; |
8c47c732 | 109 | |
718db961 LP |
110 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
111 | if (m->notify_fd < 0) { | |
8c47c732 LP |
112 | log_error("Failed to allocate notification socket: %m"); |
113 | return -errno; | |
114 | } | |
115 | ||
31f92a7d | 116 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
117 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
118 | else | |
119 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
29252e9e | 120 | sa.un.sun_path[0] = 0; |
1d6702e8 | 121 | |
718db961 | 122 | r = bind(m->notify_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); |
e62d8c39 | 123 | if (r < 0) { |
8c47c732 LP |
124 | log_error("bind() failed: %m"); |
125 | return -errno; | |
126 | } | |
127 | ||
718db961 | 128 | r = setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
e62d8c39 | 129 | if (r < 0) { |
8c47c732 LP |
130 | log_error("SO_PASSCRED failed: %m"); |
131 | return -errno; | |
132 | } | |
133 | ||
718db961 | 134 | r = sd_event_add_io(m->event, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m, &m->notify_event_source); |
e62d8c39 | 135 | if (r < 0) { |
718db961 | 136 | log_error("Failed to allocate notify event source: %s", strerror(-r)); |
8c47c732 | 137 | return -errno; |
8742514c | 138 | } |
8c47c732 | 139 | |
29252e9e LP |
140 | sa.un.sun_path[0] = '@'; |
141 | m->notify_socket = strdup(sa.un.sun_path); | |
142 | if (!m->notify_socket) | |
8742514c | 143 | return log_oom(); |
8c47c732 | 144 | |
b2bb3dbe LP |
145 | log_debug("Using notification socket %s", m->notify_socket); |
146 | ||
8c47c732 LP |
147 | return 0; |
148 | } | |
149 | ||
03b717a3 | 150 | static int manager_watch_jobs_in_progress(Manager *m) { |
718db961 | 151 | assert(m); |
03b717a3 | 152 | |
718db961 | 153 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
154 | return 0; |
155 | ||
718db961 | 156 | return sd_event_add_monotonic(m->event, JOBS_IN_PROGRESS_WAIT_SEC, 0, manager_dispatch_jobs_in_progress, m, &m->jobs_in_progress_event_source); |
03b717a3 MS |
157 | } |
158 | ||
718db961 | 159 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 160 | |
03b717a3 MS |
161 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
162 | char *p = buffer; | |
163 | ||
164 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
165 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
166 | ||
167 | if (pos > 1) { | |
6282c859 MS |
168 | if (pos > 2) |
169 | p = mempset(p, ' ', pos-2); | |
5052495b | 170 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
171 | *p++ = '*'; |
172 | } | |
173 | ||
174 | if (pos > 0 && pos <= width) { | |
5052495b | 175 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
176 | *p++ = '*'; |
177 | } | |
178 | ||
5052495b | 179 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
180 | |
181 | if (pos < width) { | |
5052495b | 182 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 183 | *p++ = '*'; |
6282c859 MS |
184 | if (pos < width-1) |
185 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 186 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 187 | } |
03b717a3 MS |
188 | } |
189 | ||
190 | static void manager_print_jobs_in_progress(Manager *m) { | |
718db961 | 191 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
192 | Iterator i; |
193 | Job *j; | |
03b717a3 MS |
194 | unsigned counter = 0, print_nr; |
195 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
196 | unsigned cylon_pos; | |
197 | ||
718db961 LP |
198 | assert(m); |
199 | ||
03b717a3 MS |
200 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
201 | ||
202 | HASHMAP_FOREACH(j, m->jobs, i) | |
203 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
204 | break; | |
205 | ||
e970a72e MS |
206 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
207 | * so the above loop must have succeeded in finding j. */ | |
208 | assert(counter == print_nr + 1); | |
51d122af | 209 | assert(j); |
5a82a91a | 210 | |
03b717a3 MS |
211 | cylon_pos = m->jobs_in_progress_iteration % 14; |
212 | if (cylon_pos >= 8) | |
213 | cylon_pos = 14 - cylon_pos; | |
214 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
215 | ||
216 | if (m->n_running_jobs > 1) | |
217 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
218 | job_of_n = NULL; | |
219 | ||
220 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
221 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
03b717a3 MS |
222 | |
223 | m->jobs_in_progress_iteration++; | |
224 | } | |
225 | ||
31a7eb86 | 226 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
227 | int r; |
228 | ||
718db961 LP |
229 | assert(m); |
230 | ||
231 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
232 | return 0; |
233 | ||
234 | if (m->idle_pipe[2] < 0) | |
235 | return 0; | |
236 | ||
718db961 LP |
237 | r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source); |
238 | if (r < 0) { | |
239 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
240 | return r; | |
31a7eb86 ZJS |
241 | } |
242 | ||
31a7eb86 | 243 | return 0; |
31a7eb86 ZJS |
244 | } |
245 | ||
718db961 LP |
246 | static void manager_close_idle_pipe(Manager *m) { |
247 | assert(m); | |
31a7eb86 | 248 | |
718db961 LP |
249 | close_pipe(m->idle_pipe); |
250 | close_pipe(m->idle_pipe + 2); | |
31a7eb86 ZJS |
251 | } |
252 | ||
8742514c | 253 | static int manager_setup_time_change(Manager *m) { |
718db961 | 254 | int r; |
b92bea5d ZJS |
255 | |
256 | /* We only care for the cancellation event, hence we set the | |
257 | * timeout to the latest possible value. */ | |
258 | struct itimerspec its = { | |
259 | .it_value.tv_sec = TIME_T_MAX, | |
260 | }; | |
8742514c | 261 | |
718db961 LP |
262 | assert(m); |
263 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c LP |
264 | |
265 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
266 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
267 | ||
718db961 LP |
268 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
269 | if (m->time_change_fd < 0) { | |
8742514c LP |
270 | log_error("Failed to create timerfd: %m"); |
271 | return -errno; | |
272 | } | |
273 | ||
718db961 | 274 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 275 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
718db961 LP |
276 | close_nointr_nofail(m->time_change_fd); |
277 | m->time_change_fd = -1; | |
8742514c LP |
278 | return 0; |
279 | } | |
280 | ||
718db961 LP |
281 | r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source); |
282 | if (r < 0) { | |
283 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
284 | return r; | |
8742514c LP |
285 | } |
286 | ||
287 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
80876c20 | 292 | static int enable_special_signals(Manager *m) { |
718db961 | 293 | _cleanup_close_ int fd = -1; |
80876c20 LP |
294 | |
295 | assert(m); | |
296 | ||
a41b539e | 297 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
298 | * this will fail with EPERM (older) or EINVAL (newer), so |
299 | * ignore that. */ | |
300 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
301 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
302 | ||
a41b539e LP |
303 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
304 | if (fd < 0) { | |
305 | /* Support systems without virtual console */ | |
306 | if (fd != -ENOENT) | |
307 | log_warning("Failed to open /dev/tty0: %m"); | |
308 | } else { | |
80876c20 LP |
309 | /* Enable that we get SIGWINCH on kbrequest */ |
310 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 311 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
312 | } |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
ce578209 | 317 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
318 | struct sigaction sa = { |
319 | .sa_handler = SIG_DFL, | |
320 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
321 | }; | |
718db961 LP |
322 | sigset_t mask; |
323 | int r; | |
60918275 | 324 | |
ce578209 LP |
325 | assert(m); |
326 | ||
57c0c30e | 327 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
328 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
329 | ||
ce578209 | 330 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
331 | |
332 | sigset_add_many(&mask, | |
333 | SIGCHLD, /* Child died */ | |
334 | SIGTERM, /* Reexecute daemon */ | |
335 | SIGHUP, /* Reload configuration */ | |
336 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
337 | SIGUSR2, /* systemd: dump status */ | |
338 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
339 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
340 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
341 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 342 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
343 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
344 | SIGRTMIN+3, /* systemd: start halt.target */ | |
345 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
346 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
347 | SIGRTMIN+6, /* systemd: start kexec.target */ |
348 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
349 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
350 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
351 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
352 | SIGRTMIN+20, /* systemd: enable status messages */ |
353 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
354 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
355 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 356 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 357 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
358 | SIGRTMIN+27, /* systemd: set log target to console */ |
359 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
360 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 361 | -1); |
ce578209 LP |
362 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
363 | ||
718db961 LP |
364 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
365 | if (m->signal_fd < 0) | |
ce578209 LP |
366 | return -errno; |
367 | ||
718db961 LP |
368 | r = sd_event_add_io(m->event, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m, &m->signal_event_source); |
369 | if (r < 0) | |
370 | return r; | |
ce578209 | 371 | |
29083707 LP |
372 | /* Process signals a bit earlier than the rest of things */ |
373 | r = sd_event_source_set_priority(m->signal_event_source, -5); | |
374 | if (r < 0) | |
375 | return r; | |
376 | ||
67445f4e | 377 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 378 | return enable_special_signals(m); |
e1414003 | 379 | |
ce578209 LP |
380 | return 0; |
381 | } | |
382 | ||
e21fea24 | 383 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
384 | assert(m); |
385 | ||
e21fea24 KS |
386 | if (m->running_as == SYSTEMD_SYSTEM) { |
387 | /* The system manager always starts with a clean | |
388 | * environment for its children. It does not import | |
389 | * the kernel or the parents exported variables. | |
390 | * | |
391 | * The initial passed environ is untouched to keep | |
392 | * /proc/self/environ valid; it is used for tagging | |
393 | * the init process inside containers. */ | |
43638332 ZJS |
394 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
395 | NULL); | |
e21fea24 KS |
396 | |
397 | /* Import locale variables LC_*= from configuration */ | |
398 | locale_setup(&m->environment); | |
399 | } else | |
400 | /* The user manager passes its own environment | |
401 | * along to its children. */ | |
402 | m->environment = strv_copy(environ); | |
71ecc858 | 403 | |
e21fea24 KS |
404 | if (!m->environment) |
405 | return -ENOMEM; | |
8b55b8c4 | 406 | |
9d5a3757 LP |
407 | strv_sort(m->environment); |
408 | ||
e21fea24 | 409 | return 0; |
71ecc858 LP |
410 | } |
411 | ||
e3dd987c LP |
412 | static int manager_setup_kdbus(Manager *m) { |
413 | _cleanup_free_ char *p = NULL; | |
414 | ||
415 | assert(m); | |
416 | ||
626851be | 417 | #ifdef ENABLE_KDBUS |
e3dd987c LP |
418 | if (m->kdbus_fd >= 0) |
419 | return 0; | |
420 | ||
421 | /* If there's already a bus address set, don't set up kdbus */ | |
422 | if (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) | |
423 | return 0; | |
424 | ||
9bd37b40 | 425 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", &p); |
e3dd987c LP |
426 | if (m->kdbus_fd < 0) { |
427 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
428 | return m->kdbus_fd; | |
429 | } | |
430 | ||
a6aa8912 | 431 | log_debug("Successfully set up kdbus on %s", p); |
626851be LP |
432 | #endif |
433 | ||
e3dd987c LP |
434 | return 0; |
435 | } | |
436 | ||
437 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
438 | bool try_bus_connect; | |
439 | ||
440 | assert(m); | |
441 | ||
442 | try_bus_connect = | |
443 | m->kdbus_fd >= 0 || | |
444 | reexecuting || | |
445 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
446 | ||
447 | /* Try to connect to the busses, if possible. */ | |
448 | return bus_init(m, try_bus_connect); | |
449 | } | |
450 | ||
451 | int manager_new(SystemdRunningAs running_as, Manager **_m) { | |
ce578209 | 452 | Manager *m; |
e3dd987c | 453 | int r; |
8e274523 LP |
454 | |
455 | assert(_m); | |
a5dab5ce | 456 | assert(running_as >= 0); |
67445f4e | 457 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 458 | |
915b3753 LP |
459 | m = new0(Manager, 1); |
460 | if (!m) | |
8e274523 | 461 | return -ENOMEM; |
60918275 | 462 | |
4f8d551f ZC |
463 | #ifdef ENABLE_EFI |
464 | if (detect_container(NULL) <= 0) | |
c51d84dc | 465 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
466 | #endif |
467 | ||
a5dab5ce | 468 | m->running_as = running_as; |
a16e1123 | 469 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
80876c20 | 470 | |
718db961 | 471 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 472 | |
e3dd987c | 473 | m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1; |
ea430986 | 474 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 475 | |
e21fea24 KS |
476 | r = manager_default_environment(m); |
477 | if (r < 0) | |
1137a57c LP |
478 | goto fail; |
479 | ||
718db961 LP |
480 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
481 | if (r < 0) | |
60918275 LP |
482 | goto fail; |
483 | ||
718db961 LP |
484 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
485 | if (r < 0) | |
60918275 LP |
486 | goto fail; |
487 | ||
718db961 LP |
488 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
489 | if (r < 0) | |
9152c765 LP |
490 | goto fail; |
491 | ||
718db961 LP |
492 | r = hashmap_ensure_allocated(&m->watch_pids, trivial_hash_func, trivial_compare_func); |
493 | if (r < 0) | |
8e274523 LP |
494 | goto fail; |
495 | ||
718db961 LP |
496 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
497 | if (r < 0) | |
05e343b7 LP |
498 | goto fail; |
499 | ||
718db961 LP |
500 | r = sd_event_default(&m->event); |
501 | if (r < 0) | |
8742514c LP |
502 | goto fail; |
503 | ||
752b5905 LP |
504 | r = sd_event_add_defer(m->event, manager_dispatch_run_queue, m, &m->run_queue_event_source); |
505 | if (r < 0) | |
506 | goto fail; | |
507 | ||
508 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
509 | if (r < 0) | |
510 | goto fail; | |
511 | ||
512 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
513 | if (r < 0) | |
514 | goto fail; | |
515 | ||
8742514c LP |
516 | r = manager_setup_signals(m); |
517 | if (r < 0) | |
9152c765 LP |
518 | goto fail; |
519 | ||
8742514c LP |
520 | r = manager_setup_cgroup(m); |
521 | if (r < 0) | |
8e274523 LP |
522 | goto fail; |
523 | ||
8742514c LP |
524 | r = manager_setup_notify(m); |
525 | if (r < 0) | |
9152c765 LP |
526 | goto fail; |
527 | ||
8742514c LP |
528 | r = manager_setup_time_change(m); |
529 | if (r < 0) | |
8c47c732 LP |
530 | goto fail; |
531 | ||
9670d583 LP |
532 | m->udev = udev_new(); |
533 | if (!m->udev) { | |
534 | r = -ENOMEM; | |
535 | goto fail; | |
536 | } | |
537 | ||
72bc8d00 LP |
538 | m->taint_usr = dir_is_empty("/usr") > 0; |
539 | ||
8e274523 LP |
540 | *_m = m; |
541 | return 0; | |
60918275 LP |
542 | |
543 | fail: | |
544 | manager_free(m); | |
8e274523 | 545 | return r; |
60918275 LP |
546 | } |
547 | ||
23a177ef | 548 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 549 | Unit *u; |
23a177ef LP |
550 | unsigned n = 0; |
551 | ||
552 | assert(m); | |
553 | ||
595ed347 MS |
554 | while ((u = m->cleanup_queue)) { |
555 | assert(u->in_cleanup_queue); | |
23a177ef | 556 | |
595ed347 | 557 | unit_free(u); |
23a177ef LP |
558 | n++; |
559 | } | |
560 | ||
561 | return n; | |
562 | } | |
563 | ||
eced69b3 | 564 | enum { |
35b8ca3a | 565 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
566 | GC_OFFSET_UNSURE, /* No clue */ |
567 | GC_OFFSET_GOOD, /* We still need this unit */ | |
568 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
569 | _GC_OFFSET_MAX | |
570 | }; | |
571 | ||
572 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
573 | Iterator i; |
574 | Unit *other; | |
eced69b3 | 575 | bool is_bad; |
701cc384 LP |
576 | |
577 | assert(u); | |
578 | ||
ac155bb8 MS |
579 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
580 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
581 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
582 | return; |
583 | ||
ac155bb8 | 584 | if (u->in_cleanup_queue) |
701cc384 LP |
585 | goto bad; |
586 | ||
587 | if (unit_check_gc(u)) | |
588 | goto good; | |
589 | ||
ac155bb8 | 590 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
591 | |
592 | is_bad = true; | |
593 | ||
ac155bb8 | 594 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
595 | unit_gc_sweep(other, gc_marker); |
596 | ||
ac155bb8 | 597 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 598 | goto good; |
eced69b3 | 599 | |
ac155bb8 | 600 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 601 | is_bad = false; |
701cc384 LP |
602 | } |
603 | ||
eced69b3 LP |
604 | if (is_bad) |
605 | goto bad; | |
606 | ||
607 | /* We were unable to find anything out about this entry, so | |
608 | * let's investigate it later */ | |
ac155bb8 | 609 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
610 | unit_add_to_gc_queue(u); |
611 | return; | |
612 | ||
701cc384 | 613 | bad: |
eced69b3 LP |
614 | /* We definitely know that this one is not useful anymore, so |
615 | * let's mark it for deletion */ | |
ac155bb8 | 616 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 617 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
618 | return; |
619 | ||
620 | good: | |
ac155bb8 | 621 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
622 | } |
623 | ||
624 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 625 | Unit *u; |
701cc384 | 626 | unsigned n = 0; |
eced69b3 | 627 | unsigned gc_marker; |
701cc384 LP |
628 | |
629 | assert(m); | |
630 | ||
cf1265e1 | 631 | /* log_debug("Running GC..."); */ |
701cc384 | 632 | |
eced69b3 LP |
633 | m->gc_marker += _GC_OFFSET_MAX; |
634 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 635 | m->gc_marker = 1; |
701cc384 | 636 | |
eced69b3 LP |
637 | gc_marker = m->gc_marker; |
638 | ||
595ed347 MS |
639 | while ((u = m->gc_queue)) { |
640 | assert(u->in_gc_queue); | |
701cc384 | 641 | |
595ed347 | 642 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 643 | |
71fda00f | 644 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 645 | u->in_gc_queue = false; |
701cc384 LP |
646 | |
647 | n++; | |
648 | ||
595ed347 MS |
649 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
650 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 651 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
652 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
653 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
654 | } |
655 | } | |
656 | ||
657 | m->n_in_gc_queue = 0; | |
701cc384 LP |
658 | |
659 | return n; | |
660 | } | |
661 | ||
a16e1123 | 662 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 663 | Unit *u; |
60918275 LP |
664 | |
665 | assert(m); | |
666 | ||
87f0e418 LP |
667 | while ((u = hashmap_first(m->units))) |
668 | unit_free(u); | |
964e0949 LP |
669 | |
670 | manager_dispatch_cleanup_queue(m); | |
671 | ||
672 | assert(!m->load_queue); | |
673 | assert(!m->run_queue); | |
674 | assert(!m->dbus_unit_queue); | |
675 | assert(!m->dbus_job_queue); | |
676 | assert(!m->cleanup_queue); | |
677 | assert(!m->gc_queue); | |
678 | ||
964e0949 LP |
679 | assert(hashmap_isempty(m->jobs)); |
680 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
681 | |
682 | m->n_on_console = 0; | |
683 | m->n_running_jobs = 0; | |
a16e1123 LP |
684 | } |
685 | ||
686 | void manager_free(Manager *m) { | |
687 | UnitType c; | |
c93ff2e9 | 688 | int i; |
87f0e418 | 689 | |
a16e1123 LP |
690 | assert(m); |
691 | ||
692 | manager_clear_jobs_and_units(m); | |
23a177ef | 693 | |
7824bbeb LP |
694 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
695 | if (unit_vtable[c]->shutdown) | |
696 | unit_vtable[c]->shutdown(m); | |
697 | ||
a16e1123 LP |
698 | /* If we reexecute ourselves, we keep the root cgroup |
699 | * around */ | |
c6c18be3 | 700 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 701 | |
5a1e9937 LP |
702 | manager_undo_generators(m); |
703 | ||
5e8d1c9a | 704 | bus_done(m); |
ea430986 | 705 | |
87f0e418 | 706 | hashmap_free(m->units); |
60918275 | 707 | hashmap_free(m->jobs); |
9152c765 | 708 | hashmap_free(m->watch_pids); |
05e343b7 | 709 | hashmap_free(m->watch_bus); |
9152c765 | 710 | |
718db961 LP |
711 | sd_event_source_unref(m->signal_event_source); |
712 | sd_event_source_unref(m->notify_event_source); | |
713 | sd_event_source_unref(m->time_change_event_source); | |
714 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
715 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 716 | sd_event_source_unref(m->run_queue_event_source); |
718db961 LP |
717 | |
718 | if (m->signal_fd >= 0) | |
719 | close_nointr_nofail(m->signal_fd); | |
720 | if (m->notify_fd >= 0) | |
721 | close_nointr_nofail(m->notify_fd); | |
722 | if (m->time_change_fd >= 0) | |
723 | close_nointr_nofail(m->time_change_fd); | |
e3dd987c LP |
724 | if (m->kdbus_fd >= 0) |
725 | close_nointr_nofail(m->kdbus_fd); | |
718db961 LP |
726 | |
727 | manager_close_idle_pipe(m); | |
728 | ||
9670d583 | 729 | udev_unref(m->udev); |
718db961 | 730 | sd_event_unref(m->event); |
60918275 | 731 | |
c952c6ec LP |
732 | free(m->notify_socket); |
733 | ||
84e3543e | 734 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 735 | strv_free(m->environment); |
036643a2 | 736 | |
4ad49000 | 737 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 738 | set_free_free(m->unit_path_cache); |
33be102a | 739 | |
664f88a7 LP |
740 | free(m->switch_root); |
741 | free(m->switch_root_init); | |
742 | ||
c93ff2e9 FC |
743 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
744 | free(m->rlimit[i]); | |
745 | ||
a57f7e2c LP |
746 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
747 | hashmap_free(m->units_requiring_mounts_for); | |
748 | ||
60918275 LP |
749 | free(m); |
750 | } | |
751 | ||
a16e1123 LP |
752 | int manager_enumerate(Manager *m) { |
753 | int r = 0, q; | |
f50e0a01 | 754 | UnitType c; |
f50e0a01 LP |
755 | |
756 | assert(m); | |
757 | ||
a16e1123 LP |
758 | /* Let's ask every type to load all units from disk/kernel |
759 | * that it might know */ | |
f50e0a01 | 760 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
761 | if (unit_vtable[c]->enumerate) { |
762 | q = unit_vtable[c]->enumerate(m); | |
763 | if (q < 0) | |
a16e1123 | 764 | r = q; |
a57f7e2c | 765 | } |
f50e0a01 LP |
766 | |
767 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
768 | return r; |
769 | } | |
770 | ||
9588bc32 | 771 | static int manager_coldplug(Manager *m) { |
a16e1123 LP |
772 | int r = 0, q; |
773 | Iterator i; | |
774 | Unit *u; | |
775 | char *k; | |
776 | ||
777 | assert(m); | |
f50e0a01 LP |
778 | |
779 | /* Then, let's set up their initial state. */ | |
780 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
781 | ||
782 | /* ignore aliases */ | |
ac155bb8 | 783 | if (u->id != k) |
f50e0a01 LP |
784 | continue; |
785 | ||
cca098b0 LP |
786 | if ((q = unit_coldplug(u)) < 0) |
787 | r = q; | |
f50e0a01 LP |
788 | } |
789 | ||
a16e1123 LP |
790 | return r; |
791 | } | |
792 | ||
fe51822e LP |
793 | static void manager_build_unit_path_cache(Manager *m) { |
794 | char **i; | |
7fd1b19b | 795 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
796 | int r; |
797 | ||
798 | assert(m); | |
799 | ||
800 | set_free_free(m->unit_path_cache); | |
801 | ||
874310b7 ZJS |
802 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
803 | if (!m->unit_path_cache) { | |
fe51822e LP |
804 | log_error("Failed to allocate unit path cache."); |
805 | return; | |
806 | } | |
807 | ||
808 | /* This simply builds a list of files we know exist, so that | |
809 | * we don't always have to go to disk */ | |
810 | ||
811 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
812 | struct dirent *de; | |
813 | ||
bd0af849 ZJS |
814 | d = opendir(*i); |
815 | if (!d) { | |
874310b7 ZJS |
816 | if (errno != ENOENT) |
817 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
818 | continue; |
819 | } | |
820 | ||
821 | while ((de = readdir(d))) { | |
822 | char *p; | |
823 | ||
824 | if (ignore_file(de->d_name)) | |
825 | continue; | |
826 | ||
b7def684 | 827 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 828 | if (!p) { |
fe51822e LP |
829 | r = -ENOMEM; |
830 | goto fail; | |
831 | } | |
832 | ||
ef42202a ZJS |
833 | r = set_consume(m->unit_path_cache, p); |
834 | if (r < 0) | |
fe51822e | 835 | goto fail; |
fe51822e LP |
836 | } |
837 | ||
838 | closedir(d); | |
839 | d = NULL; | |
840 | } | |
841 | ||
842 | return; | |
843 | ||
844 | fail: | |
845 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
846 | ||
847 | set_free_free(m->unit_path_cache); | |
848 | m->unit_path_cache = NULL; | |
fe51822e LP |
849 | } |
850 | ||
9588bc32 LP |
851 | |
852 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
853 | Unit *u; | |
854 | Iterator i; | |
855 | int r; | |
856 | ||
857 | assert(m); | |
858 | ||
859 | HASHMAP_FOREACH(u, m->units, i) { | |
860 | ||
861 | if (fdset_size(fds) <= 0) | |
862 | break; | |
863 | ||
864 | if (UNIT_VTABLE(u)->distribute_fds) { | |
865 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
866 | if (r < 0) | |
867 | return r; | |
868 | } | |
869 | } | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
a16e1123 LP |
874 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
875 | int r, q; | |
876 | ||
877 | assert(m); | |
878 | ||
518d10e9 | 879 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 880 | manager_run_generators(m); |
518d10e9 | 881 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 882 | |
07719a21 LP |
883 | r = lookup_paths_init( |
884 | &m->lookup_paths, m->running_as, true, | |
885 | m->generator_unit_path, | |
886 | m->generator_unit_path_early, | |
887 | m->generator_unit_path_late); | |
888 | if (r < 0) | |
889 | return r; | |
890 | ||
fe51822e LP |
891 | manager_build_unit_path_cache(m); |
892 | ||
9f611ad8 LP |
893 | /* If we will deserialize make sure that during enumeration |
894 | * this is already known, so we increase the counter here | |
895 | * already */ | |
896 | if (serialization) | |
a7556052 | 897 | m->n_reloading ++; |
9f611ad8 | 898 | |
a16e1123 | 899 | /* First, enumerate what we can from all config files */ |
718db961 | 900 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 901 | r = manager_enumerate(m); |
718db961 | 902 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
903 | |
904 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
905 | if (serialization) { |
906 | q = manager_deserialize(m, serialization, fds); | |
907 | if (q < 0) | |
a16e1123 | 908 | r = q; |
07719a21 | 909 | } |
a16e1123 | 910 | |
01e10de3 LP |
911 | /* Any fds left? Find some unit which wants them. This is |
912 | * useful to allow container managers to pass some file | |
913 | * descriptors to us pre-initialized. This enables | |
914 | * socket-based activation of entire containers. */ | |
915 | if (fdset_size(fds) > 0) { | |
916 | q = manager_distribute_fds(m, fds); | |
917 | if (q < 0) | |
918 | r = q; | |
919 | } | |
920 | ||
e3dd987c LP |
921 | /* We might have deserialized the kdbus control fd, but if we |
922 | * didn't, then let's create the bus now. */ | |
923 | manager_setup_kdbus(m); | |
924 | manager_connect_bus(m, !!serialization); | |
925 | ||
a16e1123 | 926 | /* Third, fire things up! */ |
07719a21 LP |
927 | q = manager_coldplug(m); |
928 | if (q < 0) | |
a16e1123 LP |
929 | r = q; |
930 | ||
9f611ad8 | 931 | if (serialization) { |
a7556052 LP |
932 | assert(m->n_reloading > 0); |
933 | m->n_reloading --; | |
71445ae7 LP |
934 | |
935 | /* Let's wait for the UnitNew/JobNew messages being | |
936 | * sent, before we notify that the reload is | |
937 | * finished */ | |
938 | m->send_reloading_done = true; | |
9f611ad8 LP |
939 | } |
940 | ||
a16e1123 | 941 | return r; |
f50e0a01 LP |
942 | } |
943 | ||
718db961 | 944 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 945 | int r; |
7527cb52 | 946 | Transaction *tr; |
e5b5ae50 LP |
947 | |
948 | assert(m); | |
949 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 950 | assert(unit); |
e5b5ae50 | 951 | assert(mode < _JOB_MODE_MAX); |
60918275 | 952 | |
398ef8ba | 953 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 954 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 955 | return -EINVAL; |
398ef8ba | 956 | } |
c497c7a9 | 957 | |
ac155bb8 | 958 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 959 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
960 | return -EPERM; |
961 | } | |
962 | ||
66870f90 ZJS |
963 | log_debug_unit(unit->id, |
964 | "Trying to enqueue job %s/%s/%s", unit->id, | |
965 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 966 | |
e0209d83 MS |
967 | job_type_collapse(&type, unit); |
968 | ||
23ade460 | 969 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
970 | if (!tr) |
971 | return -ENOMEM; | |
11dd41ce | 972 | |
7527cb52 MS |
973 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
974 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 975 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
976 | if (r < 0) |
977 | goto tr_abort; | |
c497c7a9 | 978 | |
7527cb52 MS |
979 | if (mode == JOB_ISOLATE) { |
980 | r = transaction_add_isolate_jobs(tr, m); | |
981 | if (r < 0) | |
982 | goto tr_abort; | |
983 | } | |
984 | ||
985 | r = transaction_activate(tr, m, mode, e); | |
986 | if (r < 0) | |
987 | goto tr_abort; | |
e5b5ae50 | 988 | |
66870f90 ZJS |
989 | log_debug_unit(unit->id, |
990 | "Enqueued job %s/%s as %u", unit->id, | |
991 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 992 | |
e5b5ae50 | 993 | if (_ret) |
b94fbd30 | 994 | *_ret = tr->anchor_job; |
60918275 | 995 | |
7527cb52 | 996 | transaction_free(tr); |
e5b5ae50 | 997 | return 0; |
7527cb52 MS |
998 | |
999 | tr_abort: | |
1000 | transaction_abort(tr); | |
1001 | transaction_free(tr); | |
1002 | return r; | |
e5b5ae50 | 1003 | } |
60918275 | 1004 | |
718db961 | 1005 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
28247076 LP |
1006 | Unit *unit; |
1007 | int r; | |
1008 | ||
1009 | assert(m); | |
1010 | assert(type < _JOB_TYPE_MAX); | |
1011 | assert(name); | |
1012 | assert(mode < _JOB_MODE_MAX); | |
1013 | ||
c3090674 LP |
1014 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1015 | if (r < 0) | |
28247076 LP |
1016 | return r; |
1017 | ||
398ef8ba | 1018 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1019 | } |
1020 | ||
60918275 LP |
1021 | Job *manager_get_job(Manager *m, uint32_t id) { |
1022 | assert(m); | |
1023 | ||
1024 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1025 | } | |
1026 | ||
87f0e418 | 1027 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1028 | assert(m); |
1029 | assert(name); | |
1030 | ||
87f0e418 | 1031 | return hashmap_get(m->units, name); |
60918275 LP |
1032 | } |
1033 | ||
c1e1601e | 1034 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1035 | Unit *u; |
c1e1601e | 1036 | unsigned n = 0; |
60918275 LP |
1037 | |
1038 | assert(m); | |
1039 | ||
223dabab LP |
1040 | /* Make sure we are not run recursively */ |
1041 | if (m->dispatching_load_queue) | |
c1e1601e | 1042 | return 0; |
223dabab LP |
1043 | |
1044 | m->dispatching_load_queue = true; | |
1045 | ||
87f0e418 | 1046 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1047 | * tries to load its data until the queue is empty */ |
1048 | ||
595ed347 MS |
1049 | while ((u = m->load_queue)) { |
1050 | assert(u->in_load_queue); | |
034c6ed7 | 1051 | |
595ed347 | 1052 | unit_load(u); |
c1e1601e | 1053 | n++; |
60918275 LP |
1054 | } |
1055 | ||
223dabab | 1056 | m->dispatching_load_queue = false; |
c1e1601e | 1057 | return n; |
60918275 LP |
1058 | } |
1059 | ||
c2756a68 LP |
1060 | int manager_load_unit_prepare( |
1061 | Manager *m, | |
1062 | const char *name, | |
1063 | const char *path, | |
718db961 | 1064 | sd_bus_error *e, |
c2756a68 LP |
1065 | Unit **_ret) { |
1066 | ||
87f0e418 | 1067 | Unit *ret; |
7d17cfbc | 1068 | UnitType t; |
60918275 LP |
1069 | int r; |
1070 | ||
1071 | assert(m); | |
9e2f7c11 | 1072 | assert(name || path); |
60918275 | 1073 | |
db06e3b6 LP |
1074 | /* This will prepare the unit for loading, but not actually |
1075 | * load anything from disk. */ | |
0301abf4 | 1076 | |
718db961 LP |
1077 | if (path && !is_path(path)) |
1078 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1079 | |
1080 | if (!name) | |
9eb977db | 1081 | name = path_get_file_name(path); |
9e2f7c11 | 1082 | |
7d17cfbc MS |
1083 | t = unit_name_to_type(name); |
1084 | ||
718db961 LP |
1085 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) |
1086 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); | |
60918275 | 1087 | |
7d17cfbc MS |
1088 | ret = manager_get_unit(m, name); |
1089 | if (ret) { | |
034c6ed7 | 1090 | *_ret = ret; |
413d6313 | 1091 | return 1; |
034c6ed7 | 1092 | } |
60918275 | 1093 | |
7d17cfbc MS |
1094 | ret = unit_new(m, unit_vtable[t]->object_size); |
1095 | if (!ret) | |
60918275 LP |
1096 | return -ENOMEM; |
1097 | ||
7d17cfbc | 1098 | if (path) { |
ac155bb8 MS |
1099 | ret->fragment_path = strdup(path); |
1100 | if (!ret->fragment_path) { | |
0301abf4 LP |
1101 | unit_free(ret); |
1102 | return -ENOMEM; | |
1103 | } | |
7d17cfbc | 1104 | } |
0301abf4 | 1105 | |
1058cbf2 ZJS |
1106 | r = unit_add_name(ret, name); |
1107 | if (r < 0) { | |
87f0e418 | 1108 | unit_free(ret); |
1ffba6fe | 1109 | return r; |
60918275 LP |
1110 | } |
1111 | ||
87f0e418 | 1112 | unit_add_to_load_queue(ret); |
c1e1601e | 1113 | unit_add_to_dbus_queue(ret); |
949061f0 | 1114 | unit_add_to_gc_queue(ret); |
c1e1601e | 1115 | |
db06e3b6 LP |
1116 | if (_ret) |
1117 | *_ret = ret; | |
1118 | ||
1119 | return 0; | |
1120 | } | |
1121 | ||
c2756a68 LP |
1122 | int manager_load_unit( |
1123 | Manager *m, | |
1124 | const char *name, | |
1125 | const char *path, | |
718db961 | 1126 | sd_bus_error *e, |
c2756a68 LP |
1127 | Unit **_ret) { |
1128 | ||
db06e3b6 LP |
1129 | int r; |
1130 | ||
1131 | assert(m); | |
1132 | ||
1133 | /* This will load the service information files, but not actually | |
1134 | * start any services or anything. */ | |
1135 | ||
c3090674 LP |
1136 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1137 | if (r != 0) | |
db06e3b6 LP |
1138 | return r; |
1139 | ||
f50e0a01 | 1140 | manager_dispatch_load_queue(m); |
60918275 | 1141 | |
9e2f7c11 | 1142 | if (_ret) |
413d6313 | 1143 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1144 | |
60918275 LP |
1145 | return 0; |
1146 | } | |
a66d02c3 | 1147 | |
cea8e32e | 1148 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1149 | Iterator i; |
a66d02c3 LP |
1150 | Job *j; |
1151 | ||
1152 | assert(s); | |
1153 | assert(f); | |
1154 | ||
034c6ed7 | 1155 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1156 | job_dump(j, f, prefix); |
a66d02c3 LP |
1157 | } |
1158 | ||
87f0e418 | 1159 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1160 | Iterator i; |
87f0e418 | 1161 | Unit *u; |
11dd41ce | 1162 | const char *t; |
a66d02c3 LP |
1163 | |
1164 | assert(s); | |
1165 | assert(f); | |
1166 | ||
87f0e418 | 1167 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1168 | if (u->id == t) |
87f0e418 | 1169 | unit_dump(u, f, prefix); |
a66d02c3 | 1170 | } |
7fad411c LP |
1171 | |
1172 | void manager_clear_jobs(Manager *m) { | |
1173 | Job *j; | |
1174 | ||
1175 | assert(m); | |
1176 | ||
7fad411c | 1177 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1178 | /* No need to recurse. We're cancelling all jobs. */ |
1179 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1180 | } |
83c60c9f | 1181 | |
752b5905 LP |
1182 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1183 | Manager *m = userdata; | |
83c60c9f | 1184 | Job *j; |
034c6ed7 | 1185 | |
752b5905 LP |
1186 | assert(source); |
1187 | assert(m); | |
9152c765 | 1188 | |
034c6ed7 | 1189 | while ((j = m->run_queue)) { |
ac1135be | 1190 | assert(j->installed); |
034c6ed7 LP |
1191 | assert(j->in_run_queue); |
1192 | ||
1193 | job_run_and_invalidate(j); | |
9152c765 | 1194 | } |
034c6ed7 | 1195 | |
a0b64226 | 1196 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1197 | manager_watch_jobs_in_progress(m); |
1198 | ||
31a7eb86 ZJS |
1199 | if (m->n_on_console > 0) |
1200 | manager_watch_idle_pipe(m); | |
1201 | ||
752b5905 | 1202 | return 1; |
c1e1601e LP |
1203 | } |
1204 | ||
9588bc32 | 1205 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1206 | Job *j; |
595ed347 | 1207 | Unit *u; |
c1e1601e LP |
1208 | unsigned n = 0; |
1209 | ||
1210 | assert(m); | |
1211 | ||
1212 | if (m->dispatching_dbus_queue) | |
1213 | return 0; | |
1214 | ||
1215 | m->dispatching_dbus_queue = true; | |
1216 | ||
595ed347 MS |
1217 | while ((u = m->dbus_unit_queue)) { |
1218 | assert(u->in_dbus_queue); | |
c1e1601e | 1219 | |
595ed347 | 1220 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1221 | n++; |
1222 | } | |
1223 | ||
1224 | while ((j = m->dbus_job_queue)) { | |
1225 | assert(j->in_dbus_queue); | |
1226 | ||
1227 | bus_job_send_change_signal(j); | |
1228 | n++; | |
1229 | } | |
1230 | ||
1231 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1232 | |
1233 | if (m->send_reloading_done) { | |
1234 | m->send_reloading_done = false; | |
1235 | ||
718db961 | 1236 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1237 | } |
1238 | ||
718db961 LP |
1239 | if (m->queued_message) |
1240 | bus_send_queued_message(m); | |
1241 | ||
c1e1601e | 1242 | return n; |
9152c765 LP |
1243 | } |
1244 | ||
718db961 LP |
1245 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1246 | Manager *m = userdata; | |
8c47c732 LP |
1247 | ssize_t n; |
1248 | ||
1249 | assert(m); | |
718db961 LP |
1250 | assert(m->notify_fd == fd); |
1251 | ||
1252 | if (revents != EPOLLIN) { | |
1253 | log_warning("Got unexpected poll event for notify fd."); | |
1254 | return 0; | |
1255 | } | |
8c47c732 LP |
1256 | |
1257 | for (;;) { | |
1258 | char buf[4096]; | |
b92bea5d ZJS |
1259 | struct iovec iovec = { |
1260 | .iov_base = buf, | |
1261 | .iov_len = sizeof(buf)-1, | |
1262 | }; | |
1263 | ||
8c47c732 LP |
1264 | union { |
1265 | struct cmsghdr cmsghdr; | |
1266 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1267 | } control = {}; |
1268 | ||
1269 | struct msghdr msghdr = { | |
1270 | .msg_iov = &iovec, | |
1271 | .msg_iovlen = 1, | |
1272 | .msg_control = &control, | |
1273 | .msg_controllen = sizeof(control), | |
1274 | }; | |
1275 | struct ucred *ucred; | |
8c47c732 | 1276 | Unit *u; |
7fd1b19b | 1277 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1278 | |
718db961 | 1279 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1280 | if (n <= 0) { |
b92bea5d | 1281 | if (n == 0) |
8c47c732 LP |
1282 | return -EIO; |
1283 | ||
f6144808 | 1284 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1285 | break; |
1286 | ||
1287 | return -errno; | |
1288 | } | |
1289 | ||
1290 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1291 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1292 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1293 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1294 | log_warning("Received notify message without credentials. Ignoring."); | |
1295 | continue; | |
1296 | } | |
1297 | ||
1298 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1299 | ||
bd0af849 ZJS |
1300 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1301 | if (!u) { | |
4ad49000 | 1302 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1303 | if (!u) { |
7989e1f2 | 1304 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1305 | continue; |
1306 | } | |
bd0af849 | 1307 | } |
8c47c732 | 1308 | |
8c40acf7 LP |
1309 | assert((size_t) n < sizeof(buf)); |
1310 | buf[n] = 0; | |
bd0af849 ZJS |
1311 | tags = strv_split(buf, "\n\r"); |
1312 | if (!tags) | |
1313 | return log_oom(); | |
8c47c732 | 1314 | |
66870f90 | 1315 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1316 | |
1317 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1318 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1319 | } |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
034c6ed7 | 1324 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1325 | assert(m); |
1326 | ||
1327 | for (;;) { | |
b92bea5d | 1328 | siginfo_t si = {}; |
87f0e418 | 1329 | Unit *u; |
8c47c732 | 1330 | int r; |
9152c765 | 1331 | |
4112df16 LP |
1332 | /* First we call waitd() for a PID and do not reap the |
1333 | * zombie. That way we can still access /proc/$PID for | |
1334 | * it while it is a zombie. */ | |
1335 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1336 | |
1337 | if (errno == ECHILD) | |
1338 | break; | |
1339 | ||
4112df16 LP |
1340 | if (errno == EINTR) |
1341 | continue; | |
1342 | ||
9152c765 | 1343 | return -errno; |
acbb0225 | 1344 | } |
9152c765 | 1345 | |
4112df16 | 1346 | if (si.si_pid <= 0) |
9152c765 LP |
1347 | break; |
1348 | ||
15d5d9d9 | 1349 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1350 | _cleanup_free_ char *name = NULL; |
4112df16 | 1351 | |
87d2c1ff | 1352 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1353 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1354 | } |
1355 | ||
8c47c732 LP |
1356 | /* Let's flush any message the dying child might still |
1357 | * have queued for us. This ensures that the process | |
1358 | * still exists in /proc so that we can figure out | |
1359 | * which cgroup and hence unit it belongs to. */ | |
718db961 | 1360 | r = manager_dispatch_notify_fd(m->notify_event_source, m->notify_fd, EPOLLIN, m); |
bd0af849 | 1361 | if (r < 0) |
8c47c732 LP |
1362 | return r; |
1363 | ||
1364 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1365 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1366 | if (!u) | |
4ad49000 | 1367 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1368 | |
4112df16 LP |
1369 | /* And now, we actually reap the zombie. */ |
1370 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1371 | if (errno == EINTR) | |
1372 | continue; | |
1373 | ||
1374 | return -errno; | |
1375 | } | |
1376 | ||
034c6ed7 LP |
1377 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1378 | continue; | |
1379 | ||
bb00e604 LP |
1380 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1381 | (long unsigned) si.si_pid, | |
4112df16 LP |
1382 | sigchld_code_to_string(si.si_code), |
1383 | si.si_status, | |
d06dacd0 LP |
1384 | strna(si.si_code == CLD_EXITED |
1385 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1386 | : signal_to_string(si.si_status))); | |
acbb0225 | 1387 | |
8c47c732 | 1388 | if (!u) |
9152c765 LP |
1389 | continue; |
1390 | ||
66870f90 ZJS |
1391 | log_debug_unit(u->id, |
1392 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1393 | |
c6c18be3 | 1394 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1395 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1396 | } |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
7d793605 | 1401 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1402 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1403 | int r; |
398ef8ba | 1404 | |
66870f90 | 1405 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1406 | |
bd0af849 ZJS |
1407 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1408 | if (r < 0) | |
718db961 | 1409 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1410 | |
1411 | return r; | |
28247076 LP |
1412 | } |
1413 | ||
718db961 LP |
1414 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1415 | Manager *m = userdata; | |
9152c765 LP |
1416 | ssize_t n; |
1417 | struct signalfd_siginfo sfsi; | |
1418 | bool sigchld = false; | |
1419 | ||
1420 | assert(m); | |
718db961 LP |
1421 | assert(m->signal_fd == fd); |
1422 | ||
1423 | if (revents != EPOLLIN) { | |
1424 | log_warning("Got unexpected events from signal file descriptor."); | |
1425 | return 0; | |
1426 | } | |
9152c765 LP |
1427 | |
1428 | for (;;) { | |
718db961 | 1429 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1430 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1431 | |
1432 | if (n >= 0) | |
1433 | return -EIO; | |
1434 | ||
63090775 | 1435 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1436 | break; |
9152c765 LP |
1437 | |
1438 | return -errno; | |
1439 | } | |
1440 | ||
67370238 LP |
1441 | if (sfsi.ssi_pid > 0) { |
1442 | char *p = NULL; | |
1443 | ||
87d2c1ff | 1444 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1445 | |
67370238 | 1446 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1447 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1448 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1449 | free(p); | |
1450 | } else | |
4e240ab0 | 1451 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1452 | |
b9cd2ec1 LP |
1453 | switch (sfsi.ssi_signo) { |
1454 | ||
4112df16 | 1455 | case SIGCHLD: |
9152c765 | 1456 | sigchld = true; |
b9cd2ec1 LP |
1457 | break; |
1458 | ||
6632c602 | 1459 | case SIGTERM: |
67445f4e | 1460 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1461 | /* This is for compatibility with the |
1462 | * original sysvinit */ | |
e11dc4a2 | 1463 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1464 | break; |
1465 | } | |
84e9af1e | 1466 | |
a1b256b0 | 1467 | /* Fall through */ |
e11dc4a2 LP |
1468 | |
1469 | case SIGINT: | |
67445f4e | 1470 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1471 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1472 | break; |
1473 | } | |
1474 | ||
a1b256b0 | 1475 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1476 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1477 | m->exit_code = MANAGER_EXIT; |
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | break; | |
84e9af1e | 1482 | |
28247076 | 1483 | case SIGWINCH: |
67445f4e | 1484 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1485 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1486 | |
28247076 LP |
1487 | /* This is a nop on non-init */ |
1488 | break; | |
84e9af1e | 1489 | |
28247076 | 1490 | case SIGPWR: |
67445f4e | 1491 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1492 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1493 | |
28247076 | 1494 | /* This is a nop on non-init */ |
84e9af1e | 1495 | break; |
6632c602 | 1496 | |
1005d14f | 1497 | case SIGUSR1: { |
57ee42ce LP |
1498 | Unit *u; |
1499 | ||
1500 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1501 | ||
1502 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1503 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1504 | bus_init(m, true); |
57ee42ce LP |
1505 | } |
1506 | ||
1507 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1508 | log_info("Loading D-Bus service..."); | |
7d793605 | 1509 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1510 | } |
1511 | ||
1512 | break; | |
1513 | } | |
1514 | ||
2149e37c | 1515 | case SIGUSR2: { |
718db961 LP |
1516 | _cleanup_free_ char *dump = NULL; |
1517 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1518 | size_t size; |
1519 | ||
718db961 LP |
1520 | f = open_memstream(&dump, &size); |
1521 | if (!f) { | |
2149e37c LP |
1522 | log_warning("Failed to allocate memory stream."); |
1523 | break; | |
1524 | } | |
1525 | ||
1526 | manager_dump_units(m, f, "\t"); | |
1527 | manager_dump_jobs(m, f, "\t"); | |
1528 | ||
1529 | if (ferror(f)) { | |
2149e37c LP |
1530 | log_warning("Failed to write status stream"); |
1531 | break; | |
1532 | } | |
1533 | ||
2149e37c | 1534 | log_dump(LOG_INFO, dump); |
1005d14f | 1535 | break; |
2149e37c | 1536 | } |
1005d14f | 1537 | |
a16e1123 LP |
1538 | case SIGHUP: |
1539 | m->exit_code = MANAGER_RELOAD; | |
1540 | break; | |
1541 | ||
7d793605 | 1542 | default: { |
253ee27a | 1543 | |
0003d1ab LP |
1544 | /* Starting SIGRTMIN+0 */ |
1545 | static const char * const target_table[] = { | |
7d793605 LP |
1546 | [0] = SPECIAL_DEFAULT_TARGET, |
1547 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1548 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1549 | [3] = SPECIAL_HALT_TARGET, |
1550 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1551 | [5] = SPECIAL_REBOOT_TARGET, |
1552 | [6] = SPECIAL_KEXEC_TARGET | |
1553 | }; | |
1554 | ||
1555 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1556 | static const ManagerExitCode code_table[] = { | |
1557 | [0] = MANAGER_HALT, | |
1558 | [1] = MANAGER_POWEROFF, | |
1559 | [2] = MANAGER_REBOOT, | |
1560 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1561 | }; |
1562 | ||
1563 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1564 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1565 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1566 | manager_start_target(m, target_table[idx], | |
1567 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1568 | break; |
1569 | } | |
1570 | ||
0003d1ab LP |
1571 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1572 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1573 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1574 | break; | |
1575 | } | |
1576 | ||
0658666b LP |
1577 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1578 | ||
1579 | case 20: | |
1580 | log_debug("Enabling showing of status."); | |
27d340c7 | 1581 | manager_set_show_status(m, true); |
0658666b LP |
1582 | break; |
1583 | ||
1584 | case 21: | |
1585 | log_debug("Disabling showing of status."); | |
27d340c7 | 1586 | manager_set_show_status(m, false); |
0658666b LP |
1587 | break; |
1588 | ||
253ee27a LP |
1589 | case 22: |
1590 | log_set_max_level(LOG_DEBUG); | |
1591 | log_notice("Setting log level to debug."); | |
1592 | break; | |
1593 | ||
1594 | case 23: | |
1595 | log_set_max_level(LOG_INFO); | |
1596 | log_notice("Setting log level to info."); | |
1597 | break; | |
1598 | ||
600b704e LP |
1599 | case 24: |
1600 | if (m->running_as == SYSTEMD_USER) { | |
1601 | m->exit_code = MANAGER_EXIT; | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | /* This is a nop on init */ | |
1606 | break; | |
1607 | ||
4cfa2c99 LP |
1608 | case 26: |
1609 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1610 | log_notice("Setting log target to journal-or-kmsg."); | |
1611 | break; | |
1612 | ||
253ee27a LP |
1613 | case 27: |
1614 | log_set_target(LOG_TARGET_CONSOLE); | |
1615 | log_notice("Setting log target to console."); | |
1616 | break; | |
1617 | ||
1618 | case 28: | |
1619 | log_set_target(LOG_TARGET_KMSG); | |
1620 | log_notice("Setting log target to kmsg."); | |
1621 | break; | |
1622 | ||
1623 | case 29: | |
1624 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1625 | log_notice("Setting log target to syslog-or-kmsg."); | |
1626 | break; | |
1627 | ||
0658666b | 1628 | default: |
4e240ab0 | 1629 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1630 | } |
b9cd2ec1 | 1631 | } |
7d793605 | 1632 | } |
9152c765 LP |
1633 | } |
1634 | ||
1635 | if (sigchld) | |
034c6ed7 LP |
1636 | return manager_dispatch_sigchld(m); |
1637 | ||
1638 | return 0; | |
1639 | } | |
1640 | ||
718db961 LP |
1641 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1642 | Manager *m = userdata; | |
1643 | Iterator i; | |
1644 | Unit *u; | |
034c6ed7 LP |
1645 | |
1646 | assert(m); | |
718db961 | 1647 | assert(m->time_change_fd == fd); |
034c6ed7 | 1648 | |
718db961 LP |
1649 | log_struct(LOG_INFO, |
1650 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1651 | "MESSAGE=Time has been changed", | |
1652 | NULL); | |
034c6ed7 | 1653 | |
718db961 LP |
1654 | /* Restart the watch */ |
1655 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1656 | |
718db961 LP |
1657 | close_nointr_nofail(m->time_change_fd); |
1658 | m->time_change_fd = -1; | |
ef734fd6 | 1659 | |
718db961 | 1660 | manager_setup_time_change(m); |
4e434314 | 1661 | |
718db961 LP |
1662 | HASHMAP_FOREACH(u, m->units, i) |
1663 | if (UNIT_VTABLE(u)->time_change) | |
1664 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1665 | |
718db961 LP |
1666 | return 0; |
1667 | } | |
ea430986 | 1668 | |
718db961 LP |
1669 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1670 | Manager *m = userdata; | |
8742514c | 1671 | |
718db961 LP |
1672 | assert(m); |
1673 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1674 | |
718db961 | 1675 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1676 | |
718db961 LP |
1677 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1678 | manager_close_idle_pipe(m); | |
03b717a3 | 1679 | |
718db961 LP |
1680 | return 0; |
1681 | } | |
31a7eb86 | 1682 | |
718db961 LP |
1683 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1684 | Manager *m = userdata; | |
31a7eb86 | 1685 | |
718db961 | 1686 | assert(m); |
9152c765 | 1687 | |
718db961 | 1688 | manager_print_jobs_in_progress(m); |
9152c765 LP |
1689 | return 0; |
1690 | } | |
1691 | ||
1692 | int manager_loop(Manager *m) { | |
1693 | int r; | |
9152c765 | 1694 | |
fac9f8df | 1695 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1696 | |
9152c765 | 1697 | assert(m); |
a16e1123 | 1698 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1699 | |
fe51822e LP |
1700 | /* Release the path cache */ |
1701 | set_free_free(m->unit_path_cache); | |
1702 | m->unit_path_cache = NULL; | |
1703 | ||
b0c918b9 LP |
1704 | manager_check_finished(m); |
1705 | ||
a4312405 | 1706 | /* There might still be some zombies hanging around from |
f3669545 | 1707 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1708 | r = manager_dispatch_sigchld(m); |
1709 | if (r < 0) | |
a4312405 LP |
1710 | return r; |
1711 | ||
a16e1123 | 1712 | while (m->exit_code == MANAGER_RUNNING) { |
718db961 | 1713 | usec_t wait_usec; |
9152c765 | 1714 | |
67445f4e | 1715 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1716 | watchdog_ping(); |
1717 | ||
ea430986 LP |
1718 | if (!ratelimit_test(&rl)) { |
1719 | /* Yay, something is going seriously wrong, pause a little */ | |
1720 | log_warning("Looping too fast. Throttling execution a little."); | |
1721 | sleep(1); | |
e96d6be7 | 1722 | continue; |
ea430986 LP |
1723 | } |
1724 | ||
37a8e683 | 1725 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1726 | continue; |
1727 | ||
cf1265e1 | 1728 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1729 | continue; |
1730 | ||
cf1265e1 | 1731 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1732 | continue; |
034c6ed7 | 1733 | |
cf1265e1 | 1734 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1735 | continue; |
1736 | ||
c1e1601e | 1737 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1738 | continue; |
ea430986 | 1739 | |
c757a65b | 1740 | /* Sleep for half the watchdog time */ |
67445f4e | 1741 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1742 | wait_usec = m->runtime_watchdog / 2; |
1743 | if (wait_usec <= 0) | |
1744 | wait_usec = 1; | |
c757a65b | 1745 | } else |
718db961 | 1746 | wait_usec = (usec_t) -1; |
9152c765 | 1747 | |
718db961 LP |
1748 | r = sd_event_run(m->event, wait_usec); |
1749 | if (r < 0) { | |
1750 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1751 | return r; |
718db961 | 1752 | } |
a16e1123 | 1753 | } |
957ca890 | 1754 | |
a16e1123 | 1755 | return m->exit_code; |
83c60c9f | 1756 | } |
ea430986 | 1757 | |
718db961 | 1758 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1759 | _cleanup_free_ char *n = NULL; |
ea430986 | 1760 | Unit *u; |
80fbf05e | 1761 | int r; |
ea430986 LP |
1762 | |
1763 | assert(m); | |
1764 | assert(s); | |
1765 | assert(_u); | |
1766 | ||
ede3a796 LP |
1767 | r = unit_name_from_dbus_path(s, &n); |
1768 | if (r < 0) | |
1769 | return r; | |
ea430986 | 1770 | |
80fbf05e | 1771 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1772 | if (r < 0) |
1773 | return r; | |
ea430986 LP |
1774 | |
1775 | *_u = u; | |
1776 | ||
1777 | return 0; | |
1778 | } | |
86fbf370 LP |
1779 | |
1780 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1781 | const char *p; |
86fbf370 | 1782 | unsigned id; |
718db961 | 1783 | Job *j; |
86fbf370 LP |
1784 | int r; |
1785 | ||
1786 | assert(m); | |
1787 | assert(s); | |
1788 | assert(_j); | |
1789 | ||
718db961 LP |
1790 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1791 | if (!p) | |
86fbf370 LP |
1792 | return -EINVAL; |
1793 | ||
718db961 | 1794 | r = safe_atou(p, &id); |
8742514c | 1795 | if (r < 0) |
86fbf370 LP |
1796 | return r; |
1797 | ||
8742514c LP |
1798 | j = manager_get_job(m, id); |
1799 | if (!j) | |
86fbf370 LP |
1800 | return -ENOENT; |
1801 | ||
1802 | *_j = j; | |
1803 | ||
1804 | return 0; | |
1805 | } | |
dfcd764e | 1806 | |
4927fcae | 1807 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1808 | |
4927fcae LP |
1809 | #ifdef HAVE_AUDIT |
1810 | char *p; | |
c1165f82 | 1811 | int audit_fd; |
e537352b | 1812 | |
c1165f82 LP |
1813 | audit_fd = get_audit_fd(); |
1814 | if (audit_fd < 0) | |
e537352b LP |
1815 | return; |
1816 | ||
bbd3a7ba LP |
1817 | /* Don't generate audit events if the service was already |
1818 | * started and we're just deserializing */ | |
a7556052 | 1819 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1820 | return; |
1821 | ||
67445f4e | 1822 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1823 | return; |
1824 | ||
ac155bb8 | 1825 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1826 | return; |
1827 | ||
bd0af849 ZJS |
1828 | p = unit_name_to_prefix_and_instance(u->id); |
1829 | if (!p) { | |
66870f90 ZJS |
1830 | log_error_unit(u->id, |
1831 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1832 | return; |
1833 | } | |
1834 | ||
c1165f82 | 1835 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1836 | if (errno == EPERM) { |
1837 | /* We aren't allowed to send audit messages? | |
44785992 | 1838 | * Then let's not retry again. */ |
c1165f82 | 1839 | close_audit_fd(); |
44785992 LP |
1840 | } else |
1841 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1842 | } |
e537352b | 1843 | |
4927fcae LP |
1844 | free(p); |
1845 | #endif | |
e537352b | 1846 | |
e537352b LP |
1847 | } |
1848 | ||
e983b760 LP |
1849 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1850 | int fd = -1; | |
1851 | union sockaddr_union sa; | |
1852 | int n = 0; | |
1853 | char *message = NULL; | |
e983b760 LP |
1854 | |
1855 | /* Don't generate plymouth events if the service was already | |
1856 | * started and we're just deserializing */ | |
a7556052 | 1857 | if (m->n_reloading > 0) |
e983b760 LP |
1858 | return; |
1859 | ||
67445f4e | 1860 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1861 | return; |
1862 | ||
3772995a LP |
1863 | if (detect_container(NULL) > 0) |
1864 | return; | |
1865 | ||
ac155bb8 MS |
1866 | if (u->type != UNIT_SERVICE && |
1867 | u->type != UNIT_MOUNT && | |
1868 | u->type != UNIT_SWAP) | |
e983b760 LP |
1869 | return; |
1870 | ||
1871 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1872 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1873 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1874 | if (fd < 0) { | |
e983b760 LP |
1875 | log_error("socket() failed: %m"); |
1876 | return; | |
1877 | } | |
1878 | ||
1879 | zero(sa); | |
1880 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1881 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1882 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1883 | |
1884 | if (errno != EPIPE && | |
1885 | errno != EAGAIN && | |
1886 | errno != ENOENT && | |
1887 | errno != ECONNREFUSED && | |
1888 | errno != ECONNRESET && | |
1889 | errno != ECONNABORTED) | |
1890 | log_error("connect() failed: %m"); | |
1891 | ||
1892 | goto finish; | |
1893 | } | |
1894 | ||
ac155bb8 | 1895 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1896 | log_oom(); |
e983b760 LP |
1897 | goto finish; |
1898 | } | |
1899 | ||
1900 | errno = 0; | |
bd40a2d8 | 1901 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1902 | |
1903 | if (errno != EPIPE && | |
1904 | errno != EAGAIN && | |
1905 | errno != ENOENT && | |
1906 | errno != ECONNREFUSED && | |
1907 | errno != ECONNRESET && | |
1908 | errno != ECONNABORTED) | |
1909 | log_error("Failed to write Plymouth message: %m"); | |
1910 | ||
1911 | goto finish; | |
1912 | } | |
1913 | ||
1914 | finish: | |
1915 | if (fd >= 0) | |
1916 | close_nointr_nofail(fd); | |
1917 | ||
1918 | free(message); | |
1919 | } | |
1920 | ||
05e343b7 LP |
1921 | void manager_dispatch_bus_name_owner_changed( |
1922 | Manager *m, | |
1923 | const char *name, | |
1924 | const char* old_owner, | |
1925 | const char *new_owner) { | |
1926 | ||
1927 | Unit *u; | |
1928 | ||
1929 | assert(m); | |
1930 | assert(name); | |
1931 | ||
718db961 LP |
1932 | u = hashmap_get(m->watch_bus, name); |
1933 | if (!u) | |
05e343b7 LP |
1934 | return; |
1935 | ||
1936 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1937 | } | |
1938 | ||
d8d5ab98 | 1939 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1940 | char *path = NULL; |
df28bc08 | 1941 | int fd = -1; |
a16e1123 LP |
1942 | FILE *f; |
1943 | ||
1944 | assert(_f); | |
1945 | ||
67445f4e | 1946 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1947 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1948 | else |
1949 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1950 | |
b925e726 LP |
1951 | if (!path) |
1952 | return -ENOMEM; | |
a16e1123 | 1953 | |
5c0d398d LP |
1954 | RUN_WITH_UMASK(0077) { |
1955 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1956 | } | |
a16e1123 LP |
1957 | |
1958 | if (fd < 0) { | |
1959 | free(path); | |
1960 | return -errno; | |
1961 | } | |
1962 | ||
1963 | unlink(path); | |
1964 | ||
1965 | log_debug("Serializing state to %s", path); | |
1966 | free(path); | |
1967 | ||
01e10de3 LP |
1968 | f = fdopen(fd, "w+"); |
1969 | if (!f) | |
a16e1123 LP |
1970 | return -errno; |
1971 | ||
1972 | *_f = f; | |
1973 | ||
1974 | return 0; | |
1975 | } | |
1976 | ||
b3680f49 | 1977 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
1978 | Iterator i; |
1979 | Unit *u; | |
1980 | const char *t; | |
4a9fd066 | 1981 | char **e; |
a16e1123 LP |
1982 | int r; |
1983 | ||
1984 | assert(m); | |
1985 | assert(f); | |
1986 | assert(fds); | |
1987 | ||
a7556052 | 1988 | m->n_reloading ++; |
38c52d46 | 1989 | |
01d67b43 LP |
1990 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
1991 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
1992 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
1993 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 1994 | |
915b3753 | 1995 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 1996 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 1997 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 1998 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 1999 | |
26a1efdf | 2000 | if (!in_initrd()) { |
915b3753 | 2001 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2002 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2003 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2004 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2005 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2006 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2007 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2008 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2009 | } |
47a483a1 | 2010 | |
b3680f49 HH |
2011 | if (!switching_root) { |
2012 | STRV_FOREACH(e, m->environment) { | |
2013 | _cleanup_free_ char *ce; | |
4a9fd066 | 2014 | |
b3680f49 | 2015 | ce = cescape(*e); |
e3dd987c LP |
2016 | if (!ce) |
2017 | return -ENOMEM; | |
2018 | ||
2019 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2020 | } |
4a9fd066 OS |
2021 | } |
2022 | ||
e3dd987c LP |
2023 | if (m->kdbus_fd >= 0) { |
2024 | int copy; | |
2025 | ||
2026 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2027 | if (copy < 0) | |
2028 | return copy; | |
2029 | ||
2030 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2031 | } | |
2032 | ||
6fa48533 LP |
2033 | bus_serialize(m, f); |
2034 | ||
f2382a94 LP |
2035 | fputc('\n', f); |
2036 | ||
a16e1123 | 2037 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2038 | if (u->id != t) |
a16e1123 LP |
2039 | continue; |
2040 | ||
2041 | if (!unit_can_serialize(u)) | |
2042 | continue; | |
2043 | ||
2044 | /* Start marker */ | |
ac155bb8 | 2045 | fputs(u->id, f); |
a16e1123 LP |
2046 | fputc('\n', f); |
2047 | ||
6fa48533 LP |
2048 | r = unit_serialize(u, f, fds, !switching_root); |
2049 | if (r < 0) { | |
a7556052 | 2050 | m->n_reloading --; |
a16e1123 | 2051 | return r; |
38c52d46 | 2052 | } |
a16e1123 LP |
2053 | } |
2054 | ||
a7556052 LP |
2055 | assert(m->n_reloading > 0); |
2056 | m->n_reloading --; | |
38c52d46 | 2057 | |
a16e1123 LP |
2058 | if (ferror(f)) |
2059 | return -EIO; | |
2060 | ||
b23de6af LP |
2061 | r = bus_fdset_add_all(m, fds); |
2062 | if (r < 0) | |
2063 | return r; | |
2064 | ||
a16e1123 LP |
2065 | return 0; |
2066 | } | |
2067 | ||
2068 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2069 | int r = 0; | |
2070 | ||
2071 | assert(m); | |
2072 | assert(f); | |
2073 | ||
2074 | log_debug("Deserializing state..."); | |
2075 | ||
a7556052 | 2076 | m->n_reloading ++; |
82c64bf5 | 2077 | |
10f8e83c | 2078 | for (;;) { |
20c03b7b | 2079 | char line[LINE_MAX], *l; |
10f8e83c LP |
2080 | |
2081 | if (!fgets(line, sizeof(line), f)) { | |
2082 | if (feof(f)) | |
2083 | r = 0; | |
2084 | else | |
2085 | r = -errno; | |
2086 | ||
2087 | goto finish; | |
2088 | } | |
2089 | ||
2090 | char_array_0(line); | |
2091 | l = strstrip(line); | |
2092 | ||
2093 | if (l[0] == 0) | |
2094 | break; | |
2095 | ||
01d67b43 LP |
2096 | if (startswith(l, "current-job-id=")) { |
2097 | uint32_t id; | |
2098 | ||
2099 | if (safe_atou32(l+15, &id) < 0) | |
2100 | log_debug("Failed to parse current job id value %s", l+15); | |
2101 | else | |
2102 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2103 | |
33c5fae9 LP |
2104 | } else if (startswith(l, "n-installed-jobs=")) { |
2105 | uint32_t n; | |
2106 | ||
2107 | if (safe_atou32(l+17, &n) < 0) | |
2108 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2109 | else | |
2110 | m->n_installed_jobs += n; | |
718db961 | 2111 | |
33c5fae9 LP |
2112 | } else if (startswith(l, "n-failed-jobs=")) { |
2113 | uint32_t n; | |
2114 | ||
2115 | if (safe_atou32(l+14, &n) < 0) | |
2116 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2117 | else | |
2118 | m->n_failed_jobs += n; | |
718db961 | 2119 | |
01d67b43 LP |
2120 | } else if (startswith(l, "taint-usr=")) { |
2121 | int b; | |
2122 | ||
e3dd987c LP |
2123 | b = parse_boolean(l+10); |
2124 | if (b < 0) | |
01d67b43 LP |
2125 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2126 | else | |
2127 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2128 | |
915b3753 LP |
2129 | } else if (startswith(l, "firmware-timestamp=")) |
2130 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2131 | else if (startswith(l, "loader-timestamp=")) | |
2132 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2133 | else if (startswith(l, "kernel-timestamp=")) | |
2134 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2135 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2136 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2137 | else if (startswith(l, "userspace-timestamp=")) |
2138 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2139 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2140 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2141 | else if (startswith(l, "security-start-timestamp=")) |
2142 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2143 | else if (startswith(l, "security-finish-timestamp=")) | |
2144 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2145 | else if (startswith(l, "generators-start-timestamp=")) | |
2146 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2147 | else if (startswith(l, "generators-finish-timestamp=")) | |
2148 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2149 | else if (startswith(l, "units-load-start-timestamp=")) | |
2150 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2151 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2152 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2153 | else if (startswith(l, "env=")) { |
2154 | _cleanup_free_ char *uce = NULL; | |
2155 | char **e; | |
2156 | ||
2157 | uce = cunescape(l+4); | |
2158 | if (!uce) { | |
2159 | r = -ENOMEM; | |
2160 | goto finish; | |
2161 | } | |
2162 | ||
2163 | e = strv_env_set(m->environment, uce); | |
2164 | if (!e) { | |
2165 | r = -ENOMEM; | |
2166 | goto finish; | |
2167 | } | |
2168 | ||
2169 | strv_free(m->environment); | |
2170 | m->environment = e; | |
e3dd987c LP |
2171 | |
2172 | } else if (startswith(l, "kdbus-fd=")) { | |
2173 | int fd; | |
2174 | ||
8bf9fcf4 | 2175 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2176 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2177 | else { | |
2178 | if (m->kdbus_fd >= 0) | |
2179 | close_nointr_nofail(m->kdbus_fd); | |
2180 | ||
2181 | m->kdbus_fd = fdset_remove(fds, fd); | |
2182 | } | |
2183 | ||
6fa48533 | 2184 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2185 | log_debug("Unknown serialization item '%s'", l); |
2186 | } | |
2187 | ||
a16e1123 LP |
2188 | for (;;) { |
2189 | Unit *u; | |
2190 | char name[UNIT_NAME_MAX+2]; | |
2191 | ||
2192 | /* Start marker */ | |
2193 | if (!fgets(name, sizeof(name), f)) { | |
2194 | if (feof(f)) | |
10f8e83c LP |
2195 | r = 0; |
2196 | else | |
2197 | r = -errno; | |
a16e1123 | 2198 | |
82c64bf5 | 2199 | goto finish; |
a16e1123 LP |
2200 | } |
2201 | ||
2202 | char_array_0(name); | |
2203 | ||
bd0af849 ZJS |
2204 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2205 | if (r < 0) | |
82c64bf5 | 2206 | goto finish; |
a16e1123 | 2207 | |
01e10de3 LP |
2208 | r = unit_deserialize(u, f, fds); |
2209 | if (r < 0) | |
82c64bf5 | 2210 | goto finish; |
a16e1123 LP |
2211 | } |
2212 | ||
10f8e83c | 2213 | finish: |
82c64bf5 LP |
2214 | if (ferror(f)) { |
2215 | r = -EIO; | |
2216 | goto finish; | |
2217 | } | |
a16e1123 | 2218 | |
a7556052 LP |
2219 | assert(m->n_reloading > 0); |
2220 | m->n_reloading --; | |
82c64bf5 LP |
2221 | |
2222 | return r; | |
a16e1123 LP |
2223 | } |
2224 | ||
2225 | int manager_reload(Manager *m) { | |
2226 | int r, q; | |
51d122af ZJS |
2227 | _cleanup_fclose_ FILE *f = NULL; |
2228 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2229 | |
2230 | assert(m); | |
2231 | ||
07719a21 LP |
2232 | r = manager_open_serialization(m, &f); |
2233 | if (r < 0) | |
a16e1123 LP |
2234 | return r; |
2235 | ||
a7556052 | 2236 | m->n_reloading ++; |
718db961 | 2237 | bus_manager_send_reloading(m, true); |
38c52d46 | 2238 | |
07719a21 LP |
2239 | fds = fdset_new(); |
2240 | if (!fds) { | |
a7556052 | 2241 | m->n_reloading --; |
51d122af | 2242 | return -ENOMEM; |
a16e1123 LP |
2243 | } |
2244 | ||
b3680f49 | 2245 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2246 | if (r < 0) { |
a7556052 | 2247 | m->n_reloading --; |
51d122af | 2248 | return r; |
38c52d46 | 2249 | } |
a16e1123 LP |
2250 | |
2251 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2252 | m->n_reloading --; |
51d122af | 2253 | return -errno; |
a16e1123 LP |
2254 | } |
2255 | ||
2256 | /* From here on there is no way back. */ | |
2257 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2258 | manager_undo_generators(m); |
84e3543e | 2259 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2260 | |
07719a21 | 2261 | /* Find new unit paths */ |
5a1e9937 LP |
2262 | manager_run_generators(m); |
2263 | ||
07719a21 LP |
2264 | q = lookup_paths_init( |
2265 | &m->lookup_paths, m->running_as, true, | |
2266 | m->generator_unit_path, | |
2267 | m->generator_unit_path_early, | |
2268 | m->generator_unit_path_late); | |
2269 | if (q < 0) | |
2270 | r = q; | |
2271 | ||
5a1e9937 LP |
2272 | manager_build_unit_path_cache(m); |
2273 | ||
a16e1123 | 2274 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2275 | q = manager_enumerate(m); |
2276 | if (q < 0) | |
a16e1123 LP |
2277 | r = q; |
2278 | ||
2279 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2280 | q = manager_deserialize(m, f, fds); |
2281 | if (q < 0) | |
a16e1123 LP |
2282 | r = q; |
2283 | ||
2284 | fclose(f); | |
2285 | f = NULL; | |
2286 | ||
2287 | /* Third, fire things up! */ | |
07719a21 LP |
2288 | q = manager_coldplug(m); |
2289 | if (q < 0) | |
a16e1123 LP |
2290 | r = q; |
2291 | ||
a7556052 LP |
2292 | assert(m->n_reloading > 0); |
2293 | m->n_reloading--; | |
9f611ad8 | 2294 | |
71445ae7 LP |
2295 | m->send_reloading_done = true; |
2296 | ||
a16e1123 LP |
2297 | return r; |
2298 | } | |
2299 | ||
6084e22e | 2300 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2301 | Unit *u; |
2302 | ||
2303 | assert(m); | |
2304 | ||
2305 | /* Is the initial job still around? */ | |
bacbccb7 | 2306 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2307 | return true; |
2308 | ||
2309 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2310 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2311 | if (u) | |
ac155bb8 | 2312 | return !!u->job; |
9e58ff9c LP |
2313 | |
2314 | return false; | |
2315 | } | |
2316 | ||
c17ec25e MS |
2317 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2318 | assert(m); | |
2319 | ||
2320 | return m->n_reloading != 0; | |
2321 | } | |
2322 | ||
fdf20a31 | 2323 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2324 | Unit *u; |
2325 | Iterator i; | |
2326 | ||
2327 | assert(m); | |
2328 | ||
2329 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2330 | unit_reset_failed(u); |
5632e374 LP |
2331 | } |
2332 | ||
31afa0a4 | 2333 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2334 | Unit *u; |
2335 | ||
2336 | assert(m); | |
2337 | assert(name); | |
2338 | ||
2339 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2340 | u = manager_get_unit(m, name); |
2341 | if (!u) | |
8f6df3fa LP |
2342 | return true; |
2343 | ||
31afa0a4 | 2344 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2345 | } |
2346 | ||
b0c918b9 | 2347 | void manager_check_finished(Manager *m) { |
7ceba241 | 2348 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2349 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2350 | |
2351 | assert(m); | |
2352 | ||
a0b64226 | 2353 | if (m->n_running_jobs == 0) |
718db961 | 2354 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2355 | |
828db5d8 KS |
2356 | if (hashmap_size(m->jobs) > 0) { |
2357 | if (m->jobs_in_progress_event_source) | |
2358 | sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC); | |
b0c918b9 | 2359 | return; |
5b176ee0 | 2360 | } |
b0c918b9 | 2361 | |
f2b68789 | 2362 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2363 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2364 | manager_close_idle_pipe(m); | |
f2b68789 | 2365 | |
af6da548 LP |
2366 | /* Turn off confirm spawn now */ |
2367 | m->confirm_spawn = false; | |
2368 | ||
f2b68789 | 2369 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2370 | return; |
2371 | ||
2372 | dual_timestamp_get(&m->finish_timestamp); | |
2373 | ||
67445f4e | 2374 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2375 | |
915b3753 LP |
2376 | /* Note that m->kernel_usec.monotonic is always at 0, |
2377 | * and m->firmware_usec.monotonic and | |
2378 | * m->loader_usec.monotonic should be considered | |
2379 | * negative values. */ | |
2380 | ||
7ceba241 LP |
2381 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2382 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2383 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2384 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2385 | |
e9ddabc2 | 2386 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2387 | |
915b3753 LP |
2388 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2389 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2390 | |
81270860 LP |
2391 | if (!log_on_console()) |
2392 | log_struct(LOG_INFO, | |
1ca6783f | 2393 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2394 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2395 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2396 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2397 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2398 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2399 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2400 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2401 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2402 | NULL); |
18fa6b27 | 2403 | } else { |
915b3753 | 2404 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2405 | initrd_usec = 0; |
2406 | ||
81270860 LP |
2407 | if (!log_on_console()) |
2408 | log_struct(LOG_INFO, | |
1ca6783f | 2409 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2410 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2411 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2412 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2413 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2414 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2415 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2416 | NULL); |
18fa6b27 LP |
2417 | } |
2418 | } else { | |
915b3753 LP |
2419 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2420 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2421 | |
81270860 LP |
2422 | if (!log_on_console()) |
2423 | log_struct(LOG_INFO, | |
1ca6783f | 2424 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2425 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2426 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2427 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2428 | NULL); |
18fa6b27 | 2429 | } |
b0c918b9 | 2430 | |
718db961 | 2431 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2432 | |
2433 | sd_notifyf(false, | |
2434 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2435 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2436 | } |
2437 | ||
07719a21 LP |
2438 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2439 | char *p; | |
2440 | int r; | |
2441 | ||
2442 | assert(m); | |
2443 | assert(generator); | |
2444 | assert(name); | |
2445 | ||
2446 | if (*generator) | |
2447 | return 0; | |
2448 | ||
67445f4e | 2449 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2450 | |
2451 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2452 | if (!p) |
2453 | return log_oom(); | |
07719a21 | 2454 | |
d2e54fae | 2455 | r = mkdir_p_label(p, 0755); |
07719a21 | 2456 | if (r < 0) { |
7ad94c71 ZJS |
2457 | log_error("Failed to create generator directory %s: %s", |
2458 | p, strerror(-r)); | |
07719a21 LP |
2459 | free(p); |
2460 | return r; | |
2461 | } | |
2462 | } else { | |
b7def684 | 2463 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2464 | if (!p) |
2465 | return log_oom(); | |
07719a21 LP |
2466 | |
2467 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2468 | log_error("Failed to create generator directory %s: %m", |
2469 | p); | |
34bf0281 | 2470 | free(p); |
07719a21 LP |
2471 | return -errno; |
2472 | } | |
2473 | } | |
2474 | ||
2475 | *generator = p; | |
2476 | return 0; | |
2477 | } | |
2478 | ||
2479 | static void trim_generator_dir(Manager *m, char **generator) { | |
2480 | assert(m); | |
2481 | assert(generator); | |
2482 | ||
2483 | if (!*generator) | |
2484 | return; | |
2485 | ||
2486 | if (rmdir(*generator) >= 0) { | |
2487 | free(*generator); | |
2488 | *generator = NULL; | |
2489 | } | |
2490 | ||
2491 | return; | |
2492 | } | |
2493 | ||
5a1e9937 | 2494 | void manager_run_generators(Manager *m) { |
718db961 | 2495 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2496 | const char *generator_path; |
07719a21 | 2497 | const char *argv[5]; |
07719a21 | 2498 | int r; |
5a1e9937 LP |
2499 | |
2500 | assert(m); | |
2501 | ||
67445f4e | 2502 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2503 | d = opendir(generator_path); |
2504 | if (!d) { | |
5a1e9937 LP |
2505 | if (errno == ENOENT) |
2506 | return; | |
2507 | ||
7ad94c71 ZJS |
2508 | log_error("Failed to enumerate generator directory %s: %m", |
2509 | generator_path); | |
5a1e9937 LP |
2510 | return; |
2511 | } | |
2512 | ||
07719a21 LP |
2513 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2514 | if (r < 0) | |
2515 | goto finish; | |
f1d19aa4 | 2516 | |
07719a21 LP |
2517 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2518 | if (r < 0) | |
2519 | goto finish; | |
5a1e9937 | 2520 | |
07719a21 LP |
2521 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2522 | if (r < 0) | |
2523 | goto finish; | |
5a1e9937 | 2524 | |
83cc030f LP |
2525 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2526 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2527 | argv[2] = m->generator_unit_path_early; |
2528 | argv[3] = m->generator_unit_path_late; | |
2529 | argv[4] = NULL; | |
5a1e9937 | 2530 | |
718db961 | 2531 | RUN_WITH_UMASK(0022) |
5c0d398d | 2532 | execute_directory(generator_path, d, (char**) argv); |
5a1e9937 | 2533 | |
718db961 | 2534 | finish: |
07719a21 LP |
2535 | trim_generator_dir(m, &m->generator_unit_path); |
2536 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2537 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2538 | } |
2539 | ||
07719a21 | 2540 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2541 | assert(m); |
07719a21 | 2542 | assert(generator); |
5a1e9937 | 2543 | |
07719a21 | 2544 | if (!*generator) |
5a1e9937 LP |
2545 | return; |
2546 | ||
07719a21 LP |
2547 | strv_remove(m->lookup_paths.unit_path, *generator); |
2548 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2549 | |
07719a21 LP |
2550 | free(*generator); |
2551 | *generator = NULL; | |
2552 | } | |
2553 | ||
2554 | void manager_undo_generators(Manager *m) { | |
2555 | assert(m); | |
2556 | ||
2557 | remove_generator_dir(m, &m->generator_unit_path); | |
2558 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2559 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2560 | } |
2561 | ||
718db961 LP |
2562 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2563 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2564 | assert(m); |
bcd8e6d1 | 2565 | |
718db961 | 2566 | l = m->environment; |
bcd8e6d1 | 2567 | |
718db961 LP |
2568 | if (!strv_isempty(minus)) { |
2569 | a = strv_env_delete(l, 1, minus); | |
2570 | if (!a) | |
2571 | return -ENOMEM; | |
2572 | ||
2573 | l = a; | |
2574 | } | |
2575 | ||
2576 | if (!strv_isempty(plus)) { | |
2577 | b = strv_env_merge(2, l, plus); | |
2578 | if (!b) | |
2579 | return -ENOMEM; | |
bcd8e6d1 | 2580 | |
718db961 LP |
2581 | l = b; |
2582 | } | |
2583 | ||
2584 | if (m->environment != l) | |
2585 | strv_free(m->environment); | |
2586 | if (a != l) | |
2587 | strv_free(a); | |
2588 | if (b != l) | |
2589 | strv_free(b); | |
2590 | ||
9d5a3757 | 2591 | m->environment = strv_sort(l); |
97d0e5f8 UTL |
2592 | return 0; |
2593 | } | |
2594 | ||
c93ff2e9 FC |
2595 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2596 | int i; | |
2597 | ||
2598 | assert(m); | |
2599 | ||
2600 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2601 | if (!default_rlimit[i]) |
2602 | continue; | |
c93ff2e9 | 2603 | |
07719a21 LP |
2604 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2605 | if (!m->rlimit[i]) | |
2606 | return -ENOMEM; | |
c93ff2e9 FC |
2607 | } |
2608 | ||
2609 | return 0; | |
2610 | } | |
2611 | ||
4cfa2c99 | 2612 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2613 | Unit *u; |
2614 | ||
2615 | assert(m); | |
2616 | ||
67445f4e | 2617 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2618 | return; |
2619 | ||
731a676c LP |
2620 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2621 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2622 | log_close_journal(); |
731a676c | 2623 | return; |
f1dd0c3f LP |
2624 | } |
2625 | ||
731a676c LP |
2626 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2627 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2628 | log_close_journal(); |
731a676c LP |
2629 | return; |
2630 | } | |
f1dd0c3f | 2631 | |
731a676c LP |
2632 | /* Hmm, OK, so the socket is fully up and the service is up |
2633 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2634 | log_open(); |
2635 | } | |
2636 | ||
27d340c7 LP |
2637 | void manager_set_show_status(Manager *m, bool b) { |
2638 | assert(m); | |
2639 | ||
67445f4e | 2640 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2641 | return; |
2642 | ||
2643 | m->show_status = b; | |
2644 | ||
2645 | if (b) | |
2646 | touch("/run/systemd/show-status"); | |
2647 | else | |
2648 | unlink("/run/systemd/show-status"); | |
2649 | } | |
2650 | ||
6084e22e | 2651 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2652 | assert(m); |
2653 | ||
67445f4e | 2654 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2655 | return false; |
2656 | ||
31a7eb86 ZJS |
2657 | if (m->no_console_output) |
2658 | return false; | |
2659 | ||
27d340c7 LP |
2660 | if (m->show_status) |
2661 | return true; | |
2662 | ||
2663 | /* If Plymouth is running make sure we show the status, so | |
2664 | * that there's something nice to see when people press Esc */ | |
2665 | ||
2666 | return plymouth_running(); | |
2667 | } | |
68b29a9f | 2668 | |
984a2be4 | 2669 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2670 | va_list ap; |
2671 | ||
2672 | if (!manager_get_show_status(m)) | |
2673 | return; | |
2674 | ||
03b717a3 MS |
2675 | /* XXX We should totally drop the check for ephemeral here |
2676 | * and thus effectively make 'Type=idle' pointless. */ | |
2677 | if (ephemeral && m->n_on_console > 0) | |
2678 | return; | |
2679 | ||
25cee550 MS |
2680 | if (!manager_is_booting_or_shutting_down(m)) |
2681 | return; | |
2682 | ||
2683 | va_start(ap, format); | |
984a2be4 | 2684 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2685 | va_end(ap); |
2686 | } | |
2687 | ||
a57f7e2c LP |
2688 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2689 | _cleanup_free_ char *p = NULL; | |
2690 | Unit *found; | |
2691 | ||
2692 | assert(m); | |
2693 | assert(path); | |
2694 | assert(suffix); | |
2695 | assert(_found); | |
2696 | ||
2697 | p = unit_name_from_path(path, suffix); | |
2698 | if (!p) | |
2699 | return -ENOMEM; | |
2700 | ||
2701 | found = manager_get_unit(m, p); | |
2702 | if (!found) { | |
2703 | *_found = NULL; | |
2704 | return 0; | |
2705 | } | |
2706 | ||
2707 | *_found = found; | |
2708 | return 1; | |
2709 | } | |
2710 | ||
2711 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2712 | char p[strlen(path)+1]; | |
2713 | ||
2714 | assert(m); | |
2715 | assert(path); | |
2716 | ||
2717 | strcpy(p, path); | |
2718 | path_kill_slashes(p); | |
2719 | ||
2720 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2721 | } |