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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 | 25 | #include <signal.h> |
9152c765 LP |
26 | #include <sys/wait.h> |
27 | #include <unistd.h> | |
28 | #include <sys/poll.h> | |
e1414003 LP |
29 | #include <sys/reboot.h> |
30 | #include <sys/ioctl.h> | |
31 | #include <linux/kd.h> | |
80876c20 LP |
32 | #include <termios.h> |
33 | #include <fcntl.h> | |
a16e1123 LP |
34 | #include <sys/types.h> |
35 | #include <sys/stat.h> | |
fe51822e | 36 | #include <dirent.h> |
8742514c | 37 | #include <sys/timerfd.h> |
830f6caa LP |
38 | |
39 | #ifdef HAVE_AUDIT | |
4927fcae | 40 | #include <libaudit.h> |
830f6caa | 41 | #endif |
60918275 | 42 | |
718db961 LP |
43 | #include "sd-daemon.h" |
44 | #include "sd-id128.h" | |
45 | #include "sd-messages.h" | |
81527be1 | 46 | |
60918275 | 47 | #include "manager.h" |
75778e21 | 48 | #include "transaction.h" |
60918275 LP |
49 | #include "hashmap.h" |
50 | #include "macro.h" | |
51 | #include "strv.h" | |
16354eff | 52 | #include "log.h" |
2a987ee8 | 53 | #include "util.h" |
49e942b2 | 54 | #include "mkdir.h" |
ea430986 | 55 | #include "ratelimit.h" |
e21fea24 | 56 | #include "locale-setup.h" |
8e274523 | 57 | #include "mount-setup.h" |
9e2f7c11 | 58 | #include "unit-name.h" |
1137a57c | 59 | #include "missing.h" |
84e3543e | 60 | #include "path-lookup.h" |
514f4ef5 | 61 | #include "special.h" |
d06dacd0 | 62 | #include "exit-status.h" |
5dc4c17f | 63 | #include "virt.h" |
e96d6be7 | 64 | #include "watchdog.h" |
b59e2465 | 65 | #include "cgroup-util.h" |
9eb977db | 66 | #include "path-util.h" |
c1165f82 | 67 | #include "audit-fd.h" |
c51d84dc | 68 | #include "boot-timestamps.h" |
8b55b8c4 | 69 | #include "env-util.h" |
718db961 LP |
70 | #include "bus-errors.h" |
71 | #include "bus-error.h" | |
72 | #include "bus-util.h" | |
73 | #include "dbus.h" | |
74 | #include "dbus-unit.h" | |
75 | #include "dbus-job.h" | |
76 | #include "dbus-manager.h" | |
e3dd987c | 77 | #include "bus-kernel.h" |
60918275 | 78 | |
701cc384 | 79 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 80 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 81 | |
03b717a3 MS |
82 | /* Initial delay and the interval for printing status messages about running jobs */ |
83 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
84 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
85 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
86 | ||
8c47c732 | 87 | /* Where clients shall send notification messages to */ |
29252e9e | 88 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 89 | |
c3e31c7b ZJS |
90 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
91 | ||
718db961 LP |
92 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
93 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
94 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
95 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
96 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
752b5905 | 97 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
718db961 | 98 | |
8c47c732 LP |
99 | static int manager_setup_notify(Manager *m) { |
100 | union { | |
101 | struct sockaddr sa; | |
102 | struct sockaddr_un un; | |
b92bea5d ZJS |
103 | } sa = { |
104 | .sa.sa_family = AF_UNIX, | |
105 | }; | |
e62d8c39 | 106 | int one = 1, r; |
8c47c732 | 107 | |
718db961 LP |
108 | m->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
109 | if (m->notify_fd < 0) { | |
8c47c732 LP |
110 | log_error("Failed to allocate notification socket: %m"); |
111 | return -errno; | |
112 | } | |
113 | ||
31f92a7d | 114 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
115 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
116 | else | |
117 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
29252e9e | 118 | sa.un.sun_path[0] = 0; |
1d6702e8 | 119 | |
718db961 | 120 | r = bind(m->notify_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); |
e62d8c39 | 121 | if (r < 0) { |
8c47c732 LP |
122 | log_error("bind() failed: %m"); |
123 | return -errno; | |
124 | } | |
125 | ||
718db961 | 126 | r = setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
e62d8c39 | 127 | if (r < 0) { |
8c47c732 LP |
128 | log_error("SO_PASSCRED failed: %m"); |
129 | return -errno; | |
130 | } | |
131 | ||
718db961 | 132 | r = sd_event_add_io(m->event, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m, &m->notify_event_source); |
e62d8c39 | 133 | if (r < 0) { |
718db961 | 134 | log_error("Failed to allocate notify event source: %s", strerror(-r)); |
8c47c732 | 135 | return -errno; |
8742514c | 136 | } |
8c47c732 | 137 | |
29252e9e LP |
138 | sa.un.sun_path[0] = '@'; |
139 | m->notify_socket = strdup(sa.un.sun_path); | |
140 | if (!m->notify_socket) | |
8742514c | 141 | return log_oom(); |
8c47c732 | 142 | |
b2bb3dbe LP |
143 | log_debug("Using notification socket %s", m->notify_socket); |
144 | ||
8c47c732 LP |
145 | return 0; |
146 | } | |
147 | ||
03b717a3 | 148 | static int manager_watch_jobs_in_progress(Manager *m) { |
718db961 | 149 | assert(m); |
03b717a3 | 150 | |
718db961 | 151 | if (m->jobs_in_progress_event_source) |
03b717a3 MS |
152 | return 0; |
153 | ||
718db961 | 154 | 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 |
155 | } |
156 | ||
718db961 | 157 | #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) |
03b717a3 | 158 | |
03b717a3 MS |
159 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
160 | char *p = buffer; | |
161 | ||
162 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
163 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
164 | ||
165 | if (pos > 1) { | |
6282c859 MS |
166 | if (pos > 2) |
167 | p = mempset(p, ' ', pos-2); | |
5052495b | 168 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 MS |
169 | *p++ = '*'; |
170 | } | |
171 | ||
172 | if (pos > 0 && pos <= width) { | |
5052495b | 173 | p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON); |
03b717a3 MS |
174 | *p++ = '*'; |
175 | } | |
176 | ||
5052495b | 177 | p = stpcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 MS |
178 | |
179 | if (pos < width) { | |
5052495b | 180 | p = stpcpy(p, ANSI_RED_ON); |
03b717a3 | 181 | *p++ = '*'; |
6282c859 MS |
182 | if (pos < width-1) |
183 | p = mempset(p, ' ', width-1-pos); | |
51d122af | 184 | strcpy(p, ANSI_HIGHLIGHT_OFF); |
03b717a3 | 185 | } |
03b717a3 MS |
186 | } |
187 | ||
188 | static void manager_print_jobs_in_progress(Manager *m) { | |
718db961 | 189 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
190 | Iterator i; |
191 | Job *j; | |
03b717a3 MS |
192 | unsigned counter = 0, print_nr; |
193 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
194 | unsigned cylon_pos; | |
195 | ||
718db961 LP |
196 | assert(m); |
197 | ||
03b717a3 MS |
198 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
199 | ||
200 | HASHMAP_FOREACH(j, m->jobs, i) | |
201 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
202 | break; | |
203 | ||
e970a72e MS |
204 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
205 | * so the above loop must have succeeded in finding j. */ | |
206 | assert(counter == print_nr + 1); | |
51d122af | 207 | assert(j); |
5a82a91a | 208 | |
03b717a3 MS |
209 | cylon_pos = m->jobs_in_progress_iteration % 14; |
210 | if (cylon_pos >= 8) | |
211 | cylon_pos = 14 - cylon_pos; | |
212 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
213 | ||
214 | if (m->n_running_jobs > 1) | |
215 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
216 | job_of_n = NULL; | |
217 | ||
218 | manager_status_printf(m, true, cylon, "%sA %s job is running for %s", | |
219 | strempty(job_of_n), job_type_to_string(j->type), unit_description(j->unit)); | |
03b717a3 MS |
220 | |
221 | m->jobs_in_progress_iteration++; | |
222 | } | |
223 | ||
31a7eb86 | 224 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
225 | int r; |
226 | ||
718db961 LP |
227 | assert(m); |
228 | ||
229 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
230 | return 0; |
231 | ||
232 | if (m->idle_pipe[2] < 0) | |
233 | return 0; | |
234 | ||
718db961 LP |
235 | r = sd_event_add_io(m->event, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m, &m->idle_pipe_event_source); |
236 | if (r < 0) { | |
237 | log_error("Failed to watch idle pipe: %s", strerror(-r)); | |
238 | return r; | |
31a7eb86 ZJS |
239 | } |
240 | ||
31a7eb86 | 241 | return 0; |
31a7eb86 ZJS |
242 | } |
243 | ||
718db961 LP |
244 | static void manager_close_idle_pipe(Manager *m) { |
245 | assert(m); | |
31a7eb86 | 246 | |
718db961 LP |
247 | close_pipe(m->idle_pipe); |
248 | close_pipe(m->idle_pipe + 2); | |
31a7eb86 ZJS |
249 | } |
250 | ||
8742514c | 251 | static int manager_setup_time_change(Manager *m) { |
718db961 | 252 | int r; |
b92bea5d ZJS |
253 | |
254 | /* We only care for the cancellation event, hence we set the | |
255 | * timeout to the latest possible value. */ | |
256 | struct itimerspec its = { | |
257 | .it_value.tv_sec = TIME_T_MAX, | |
258 | }; | |
8742514c | 259 | |
718db961 LP |
260 | assert(m); |
261 | assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); | |
8742514c LP |
262 | |
263 | /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever | |
264 | * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ | |
265 | ||
718db961 LP |
266 | m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC); |
267 | if (m->time_change_fd < 0) { | |
8742514c LP |
268 | log_error("Failed to create timerfd: %m"); |
269 | return -errno; | |
270 | } | |
271 | ||
718db961 | 272 | if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) { |
8742514c | 273 | log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m"); |
718db961 LP |
274 | close_nointr_nofail(m->time_change_fd); |
275 | m->time_change_fd = -1; | |
8742514c LP |
276 | return 0; |
277 | } | |
278 | ||
718db961 LP |
279 | r = sd_event_add_io(m->event, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m, &m->time_change_event_source); |
280 | if (r < 0) { | |
281 | log_error("Failed to create time change event source: %s", strerror(-r)); | |
282 | return r; | |
8742514c LP |
283 | } |
284 | ||
285 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
80876c20 | 290 | static int enable_special_signals(Manager *m) { |
718db961 | 291 | _cleanup_close_ int fd = -1; |
80876c20 LP |
292 | |
293 | assert(m); | |
294 | ||
a41b539e | 295 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
296 | * this will fail with EPERM (older) or EINVAL (newer), so |
297 | * ignore that. */ | |
298 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL) | |
80876c20 LP |
299 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
300 | ||
a41b539e LP |
301 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
302 | if (fd < 0) { | |
303 | /* Support systems without virtual console */ | |
304 | if (fd != -ENOENT) | |
305 | log_warning("Failed to open /dev/tty0: %m"); | |
306 | } else { | |
80876c20 LP |
307 | /* Enable that we get SIGWINCH on kbrequest */ |
308 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
f5f6d0e2 | 309 | log_warning("Failed to enable kbrequest handling: %m"); |
80876c20 LP |
310 | } |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
ce578209 | 315 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
316 | struct sigaction sa = { |
317 | .sa_handler = SIG_DFL, | |
318 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
319 | }; | |
718db961 LP |
320 | sigset_t mask; |
321 | int r; | |
60918275 | 322 | |
ce578209 LP |
323 | assert(m); |
324 | ||
57c0c30e | 325 | /* We are not interested in SIGSTOP and friends. */ |
57c0c30e LP |
326 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
327 | ||
ce578209 | 328 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
329 | |
330 | sigset_add_many(&mask, | |
331 | SIGCHLD, /* Child died */ | |
332 | SIGTERM, /* Reexecute daemon */ | |
333 | SIGHUP, /* Reload configuration */ | |
334 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
335 | SIGUSR2, /* systemd: dump status */ | |
336 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
337 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
338 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
339 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 340 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
341 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
342 | SIGRTMIN+3, /* systemd: start halt.target */ | |
343 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
344 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
345 | SIGRTMIN+6, /* systemd: start kexec.target */ |
346 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
347 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
348 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
349 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
350 | SIGRTMIN+20, /* systemd: enable status messages */ |
351 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
352 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
353 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 354 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4cfa2c99 | 355 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
356 | SIGRTMIN+27, /* systemd: set log target to console */ |
357 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
358 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 359 | -1); |
ce578209 LP |
360 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
361 | ||
718db961 LP |
362 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
363 | if (m->signal_fd < 0) | |
ce578209 LP |
364 | return -errno; |
365 | ||
718db961 LP |
366 | r = sd_event_add_io(m->event, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m, &m->signal_event_source); |
367 | if (r < 0) | |
368 | return r; | |
ce578209 | 369 | |
29083707 LP |
370 | /* Process signals a bit earlier than the rest of things */ |
371 | r = sd_event_source_set_priority(m->signal_event_source, -5); | |
372 | if (r < 0) | |
373 | return r; | |
374 | ||
67445f4e | 375 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 376 | return enable_special_signals(m); |
e1414003 | 377 | |
ce578209 LP |
378 | return 0; |
379 | } | |
380 | ||
e21fea24 | 381 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
382 | assert(m); |
383 | ||
e21fea24 KS |
384 | if (m->running_as == SYSTEMD_SYSTEM) { |
385 | /* The system manager always starts with a clean | |
386 | * environment for its children. It does not import | |
387 | * the kernel or the parents exported variables. | |
388 | * | |
389 | * The initial passed environ is untouched to keep | |
390 | * /proc/self/environ valid; it is used for tagging | |
391 | * the init process inside containers. */ | |
43638332 ZJS |
392 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
393 | NULL); | |
e21fea24 KS |
394 | |
395 | /* Import locale variables LC_*= from configuration */ | |
396 | locale_setup(&m->environment); | |
397 | } else | |
398 | /* The user manager passes its own environment | |
399 | * along to its children. */ | |
400 | m->environment = strv_copy(environ); | |
71ecc858 | 401 | |
e21fea24 KS |
402 | if (!m->environment) |
403 | return -ENOMEM; | |
8b55b8c4 | 404 | |
9d5a3757 LP |
405 | strv_sort(m->environment); |
406 | ||
e21fea24 | 407 | return 0; |
71ecc858 LP |
408 | } |
409 | ||
e3dd987c LP |
410 | static int manager_setup_kdbus(Manager *m) { |
411 | _cleanup_free_ char *p = NULL; | |
412 | ||
413 | assert(m); | |
414 | ||
626851be | 415 | #ifdef ENABLE_KDBUS |
e3dd987c LP |
416 | if (m->kdbus_fd >= 0) |
417 | return 0; | |
418 | ||
419 | /* If there's already a bus address set, don't set up kdbus */ | |
420 | if (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")) | |
421 | return 0; | |
422 | ||
9bd37b40 | 423 | m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", &p); |
e3dd987c LP |
424 | if (m->kdbus_fd < 0) { |
425 | log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd)); | |
426 | return m->kdbus_fd; | |
427 | } | |
428 | ||
a6aa8912 | 429 | log_debug("Successfully set up kdbus on %s", p); |
626851be LP |
430 | #endif |
431 | ||
e3dd987c LP |
432 | return 0; |
433 | } | |
434 | ||
435 | static int manager_connect_bus(Manager *m, bool reexecuting) { | |
436 | bool try_bus_connect; | |
437 | ||
438 | assert(m); | |
439 | ||
440 | try_bus_connect = | |
441 | m->kdbus_fd >= 0 || | |
442 | reexecuting || | |
443 | (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS")); | |
444 | ||
445 | /* Try to connect to the busses, if possible. */ | |
446 | return bus_init(m, try_bus_connect); | |
447 | } | |
448 | ||
449 | int manager_new(SystemdRunningAs running_as, Manager **_m) { | |
ce578209 | 450 | Manager *m; |
e3dd987c | 451 | int r; |
8e274523 LP |
452 | |
453 | assert(_m); | |
a5dab5ce | 454 | assert(running_as >= 0); |
67445f4e | 455 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 456 | |
915b3753 LP |
457 | m = new0(Manager, 1); |
458 | if (!m) | |
8e274523 | 459 | return -ENOMEM; |
60918275 | 460 | |
4f8d551f ZC |
461 | #ifdef ENABLE_EFI |
462 | if (detect_container(NULL) <= 0) | |
c51d84dc | 463 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
464 | #endif |
465 | ||
a5dab5ce | 466 | m->running_as = running_as; |
a16e1123 | 467 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
80876c20 | 468 | |
718db961 | 469 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 470 | |
e3dd987c | 471 | 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 | 472 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 473 | |
e21fea24 KS |
474 | r = manager_default_environment(m); |
475 | if (r < 0) | |
1137a57c LP |
476 | goto fail; |
477 | ||
718db961 LP |
478 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
479 | if (r < 0) | |
60918275 LP |
480 | goto fail; |
481 | ||
718db961 LP |
482 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
483 | if (r < 0) | |
60918275 LP |
484 | goto fail; |
485 | ||
718db961 LP |
486 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
487 | if (r < 0) | |
9152c765 LP |
488 | goto fail; |
489 | ||
718db961 LP |
490 | r = hashmap_ensure_allocated(&m->watch_pids, trivial_hash_func, trivial_compare_func); |
491 | if (r < 0) | |
8e274523 LP |
492 | goto fail; |
493 | ||
718db961 LP |
494 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
495 | if (r < 0) | |
05e343b7 LP |
496 | goto fail; |
497 | ||
718db961 LP |
498 | r = sd_event_default(&m->event); |
499 | if (r < 0) | |
8742514c LP |
500 | goto fail; |
501 | ||
752b5905 LP |
502 | r = sd_event_add_defer(m->event, manager_dispatch_run_queue, m, &m->run_queue_event_source); |
503 | if (r < 0) | |
504 | goto fail; | |
505 | ||
506 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
507 | if (r < 0) | |
508 | goto fail; | |
509 | ||
510 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
511 | if (r < 0) | |
512 | goto fail; | |
513 | ||
8742514c LP |
514 | r = manager_setup_signals(m); |
515 | if (r < 0) | |
9152c765 LP |
516 | goto fail; |
517 | ||
8742514c LP |
518 | r = manager_setup_cgroup(m); |
519 | if (r < 0) | |
8e274523 LP |
520 | goto fail; |
521 | ||
8742514c LP |
522 | r = manager_setup_notify(m); |
523 | if (r < 0) | |
9152c765 LP |
524 | goto fail; |
525 | ||
8742514c LP |
526 | r = manager_setup_time_change(m); |
527 | if (r < 0) | |
8c47c732 LP |
528 | goto fail; |
529 | ||
9670d583 LP |
530 | m->udev = udev_new(); |
531 | if (!m->udev) { | |
532 | r = -ENOMEM; | |
533 | goto fail; | |
534 | } | |
535 | ||
72bc8d00 LP |
536 | m->taint_usr = dir_is_empty("/usr") > 0; |
537 | ||
8e274523 LP |
538 | *_m = m; |
539 | return 0; | |
60918275 LP |
540 | |
541 | fail: | |
542 | manager_free(m); | |
8e274523 | 543 | return r; |
60918275 LP |
544 | } |
545 | ||
23a177ef | 546 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 547 | Unit *u; |
23a177ef LP |
548 | unsigned n = 0; |
549 | ||
550 | assert(m); | |
551 | ||
595ed347 MS |
552 | while ((u = m->cleanup_queue)) { |
553 | assert(u->in_cleanup_queue); | |
23a177ef | 554 | |
595ed347 | 555 | unit_free(u); |
23a177ef LP |
556 | n++; |
557 | } | |
558 | ||
559 | return n; | |
560 | } | |
561 | ||
eced69b3 | 562 | enum { |
35b8ca3a | 563 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
564 | GC_OFFSET_UNSURE, /* No clue */ |
565 | GC_OFFSET_GOOD, /* We still need this unit */ | |
566 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
567 | _GC_OFFSET_MAX | |
568 | }; | |
569 | ||
570 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
571 | Iterator i; |
572 | Unit *other; | |
eced69b3 | 573 | bool is_bad; |
701cc384 LP |
574 | |
575 | assert(u); | |
576 | ||
ac155bb8 MS |
577 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
578 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
579 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
580 | return; |
581 | ||
ac155bb8 | 582 | if (u->in_cleanup_queue) |
701cc384 LP |
583 | goto bad; |
584 | ||
585 | if (unit_check_gc(u)) | |
586 | goto good; | |
587 | ||
ac155bb8 | 588 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
589 | |
590 | is_bad = true; | |
591 | ||
ac155bb8 | 592 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
593 | unit_gc_sweep(other, gc_marker); |
594 | ||
ac155bb8 | 595 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 596 | goto good; |
eced69b3 | 597 | |
ac155bb8 | 598 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 599 | is_bad = false; |
701cc384 LP |
600 | } |
601 | ||
eced69b3 LP |
602 | if (is_bad) |
603 | goto bad; | |
604 | ||
605 | /* We were unable to find anything out about this entry, so | |
606 | * let's investigate it later */ | |
ac155bb8 | 607 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
608 | unit_add_to_gc_queue(u); |
609 | return; | |
610 | ||
701cc384 | 611 | bad: |
eced69b3 LP |
612 | /* We definitely know that this one is not useful anymore, so |
613 | * let's mark it for deletion */ | |
ac155bb8 | 614 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 615 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
616 | return; |
617 | ||
618 | good: | |
ac155bb8 | 619 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
620 | } |
621 | ||
622 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 623 | Unit *u; |
701cc384 | 624 | unsigned n = 0; |
eced69b3 | 625 | unsigned gc_marker; |
701cc384 LP |
626 | |
627 | assert(m); | |
628 | ||
cf1265e1 | 629 | /* log_debug("Running GC..."); */ |
701cc384 | 630 | |
eced69b3 LP |
631 | m->gc_marker += _GC_OFFSET_MAX; |
632 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 633 | m->gc_marker = 1; |
701cc384 | 634 | |
eced69b3 LP |
635 | gc_marker = m->gc_marker; |
636 | ||
595ed347 MS |
637 | while ((u = m->gc_queue)) { |
638 | assert(u->in_gc_queue); | |
701cc384 | 639 | |
595ed347 | 640 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 641 | |
71fda00f | 642 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 643 | u->in_gc_queue = false; |
701cc384 LP |
644 | |
645 | n++; | |
646 | ||
595ed347 MS |
647 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
648 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 649 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
650 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
651 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
652 | } |
653 | } | |
654 | ||
655 | m->n_in_gc_queue = 0; | |
701cc384 LP |
656 | |
657 | return n; | |
658 | } | |
659 | ||
a16e1123 | 660 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 661 | Unit *u; |
60918275 LP |
662 | |
663 | assert(m); | |
664 | ||
87f0e418 LP |
665 | while ((u = hashmap_first(m->units))) |
666 | unit_free(u); | |
964e0949 LP |
667 | |
668 | manager_dispatch_cleanup_queue(m); | |
669 | ||
670 | assert(!m->load_queue); | |
671 | assert(!m->run_queue); | |
672 | assert(!m->dbus_unit_queue); | |
673 | assert(!m->dbus_job_queue); | |
674 | assert(!m->cleanup_queue); | |
675 | assert(!m->gc_queue); | |
676 | ||
964e0949 LP |
677 | assert(hashmap_isempty(m->jobs)); |
678 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
679 | |
680 | m->n_on_console = 0; | |
681 | m->n_running_jobs = 0; | |
a16e1123 LP |
682 | } |
683 | ||
684 | void manager_free(Manager *m) { | |
685 | UnitType c; | |
c93ff2e9 | 686 | int i; |
87f0e418 | 687 | |
a16e1123 LP |
688 | assert(m); |
689 | ||
690 | manager_clear_jobs_and_units(m); | |
23a177ef | 691 | |
7824bbeb LP |
692 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
693 | if (unit_vtable[c]->shutdown) | |
694 | unit_vtable[c]->shutdown(m); | |
695 | ||
a16e1123 LP |
696 | /* If we reexecute ourselves, we keep the root cgroup |
697 | * around */ | |
c6c18be3 | 698 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 699 | |
5a1e9937 LP |
700 | manager_undo_generators(m); |
701 | ||
5e8d1c9a | 702 | bus_done(m); |
ea430986 | 703 | |
87f0e418 | 704 | hashmap_free(m->units); |
60918275 | 705 | hashmap_free(m->jobs); |
9152c765 | 706 | hashmap_free(m->watch_pids); |
05e343b7 | 707 | hashmap_free(m->watch_bus); |
9152c765 | 708 | |
718db961 LP |
709 | sd_event_source_unref(m->signal_event_source); |
710 | sd_event_source_unref(m->notify_event_source); | |
711 | sd_event_source_unref(m->time_change_event_source); | |
712 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
713 | sd_event_source_unref(m->idle_pipe_event_source); | |
752b5905 | 714 | sd_event_source_unref(m->run_queue_event_source); |
718db961 LP |
715 | |
716 | if (m->signal_fd >= 0) | |
717 | close_nointr_nofail(m->signal_fd); | |
718 | if (m->notify_fd >= 0) | |
719 | close_nointr_nofail(m->notify_fd); | |
720 | if (m->time_change_fd >= 0) | |
721 | close_nointr_nofail(m->time_change_fd); | |
e3dd987c LP |
722 | if (m->kdbus_fd >= 0) |
723 | close_nointr_nofail(m->kdbus_fd); | |
718db961 LP |
724 | |
725 | manager_close_idle_pipe(m); | |
726 | ||
9670d583 | 727 | udev_unref(m->udev); |
718db961 | 728 | sd_event_unref(m->event); |
60918275 | 729 | |
c952c6ec LP |
730 | free(m->notify_socket); |
731 | ||
84e3543e | 732 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 733 | strv_free(m->environment); |
036643a2 | 734 | |
4ad49000 | 735 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 736 | set_free_free(m->unit_path_cache); |
33be102a | 737 | |
664f88a7 LP |
738 | free(m->switch_root); |
739 | free(m->switch_root_init); | |
740 | ||
c93ff2e9 FC |
741 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
742 | free(m->rlimit[i]); | |
743 | ||
a57f7e2c LP |
744 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
745 | hashmap_free(m->units_requiring_mounts_for); | |
746 | ||
60918275 LP |
747 | free(m); |
748 | } | |
749 | ||
a16e1123 LP |
750 | int manager_enumerate(Manager *m) { |
751 | int r = 0, q; | |
f50e0a01 | 752 | UnitType c; |
f50e0a01 LP |
753 | |
754 | assert(m); | |
755 | ||
a16e1123 LP |
756 | /* Let's ask every type to load all units from disk/kernel |
757 | * that it might know */ | |
f50e0a01 | 758 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
759 | if (unit_vtable[c]->enumerate) { |
760 | q = unit_vtable[c]->enumerate(m); | |
761 | if (q < 0) | |
a16e1123 | 762 | r = q; |
a57f7e2c | 763 | } |
f50e0a01 LP |
764 | |
765 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
766 | return r; |
767 | } | |
768 | ||
9588bc32 | 769 | static int manager_coldplug(Manager *m) { |
a16e1123 LP |
770 | int r = 0, q; |
771 | Iterator i; | |
772 | Unit *u; | |
773 | char *k; | |
774 | ||
775 | assert(m); | |
f50e0a01 LP |
776 | |
777 | /* Then, let's set up their initial state. */ | |
778 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
779 | ||
780 | /* ignore aliases */ | |
ac155bb8 | 781 | if (u->id != k) |
f50e0a01 LP |
782 | continue; |
783 | ||
cca098b0 LP |
784 | if ((q = unit_coldplug(u)) < 0) |
785 | r = q; | |
f50e0a01 LP |
786 | } |
787 | ||
a16e1123 LP |
788 | return r; |
789 | } | |
790 | ||
fe51822e LP |
791 | static void manager_build_unit_path_cache(Manager *m) { |
792 | char **i; | |
7fd1b19b | 793 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
794 | int r; |
795 | ||
796 | assert(m); | |
797 | ||
798 | set_free_free(m->unit_path_cache); | |
799 | ||
874310b7 ZJS |
800 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
801 | if (!m->unit_path_cache) { | |
fe51822e LP |
802 | log_error("Failed to allocate unit path cache."); |
803 | return; | |
804 | } | |
805 | ||
806 | /* This simply builds a list of files we know exist, so that | |
807 | * we don't always have to go to disk */ | |
808 | ||
809 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
810 | struct dirent *de; | |
811 | ||
bd0af849 ZJS |
812 | d = opendir(*i); |
813 | if (!d) { | |
874310b7 ZJS |
814 | if (errno != ENOENT) |
815 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
816 | continue; |
817 | } | |
818 | ||
819 | while ((de = readdir(d))) { | |
820 | char *p; | |
821 | ||
822 | if (ignore_file(de->d_name)) | |
823 | continue; | |
824 | ||
b7def684 | 825 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 826 | if (!p) { |
fe51822e LP |
827 | r = -ENOMEM; |
828 | goto fail; | |
829 | } | |
830 | ||
ef42202a ZJS |
831 | r = set_consume(m->unit_path_cache, p); |
832 | if (r < 0) | |
fe51822e | 833 | goto fail; |
fe51822e LP |
834 | } |
835 | ||
836 | closedir(d); | |
837 | d = NULL; | |
838 | } | |
839 | ||
840 | return; | |
841 | ||
842 | fail: | |
843 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
844 | ||
845 | set_free_free(m->unit_path_cache); | |
846 | m->unit_path_cache = NULL; | |
fe51822e LP |
847 | } |
848 | ||
9588bc32 LP |
849 | |
850 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
851 | Unit *u; | |
852 | Iterator i; | |
853 | int r; | |
854 | ||
855 | assert(m); | |
856 | ||
857 | HASHMAP_FOREACH(u, m->units, i) { | |
858 | ||
859 | if (fdset_size(fds) <= 0) | |
860 | break; | |
861 | ||
862 | if (UNIT_VTABLE(u)->distribute_fds) { | |
863 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
864 | if (r < 0) | |
865 | return r; | |
866 | } | |
867 | } | |
868 | ||
869 | return 0; | |
870 | } | |
871 | ||
a16e1123 LP |
872 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
873 | int r, q; | |
874 | ||
875 | assert(m); | |
876 | ||
518d10e9 | 877 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 878 | manager_run_generators(m); |
518d10e9 | 879 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 880 | |
07719a21 LP |
881 | r = lookup_paths_init( |
882 | &m->lookup_paths, m->running_as, true, | |
883 | m->generator_unit_path, | |
884 | m->generator_unit_path_early, | |
885 | m->generator_unit_path_late); | |
886 | if (r < 0) | |
887 | return r; | |
888 | ||
fe51822e LP |
889 | manager_build_unit_path_cache(m); |
890 | ||
9f611ad8 LP |
891 | /* If we will deserialize make sure that during enumeration |
892 | * this is already known, so we increase the counter here | |
893 | * already */ | |
894 | if (serialization) | |
a7556052 | 895 | m->n_reloading ++; |
9f611ad8 | 896 | |
a16e1123 | 897 | /* First, enumerate what we can from all config files */ |
718db961 | 898 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 899 | r = manager_enumerate(m); |
718db961 | 900 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
901 | |
902 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
903 | if (serialization) { |
904 | q = manager_deserialize(m, serialization, fds); | |
905 | if (q < 0) | |
a16e1123 | 906 | r = q; |
07719a21 | 907 | } |
a16e1123 | 908 | |
01e10de3 LP |
909 | /* Any fds left? Find some unit which wants them. This is |
910 | * useful to allow container managers to pass some file | |
911 | * descriptors to us pre-initialized. This enables | |
912 | * socket-based activation of entire containers. */ | |
913 | if (fdset_size(fds) > 0) { | |
914 | q = manager_distribute_fds(m, fds); | |
915 | if (q < 0) | |
916 | r = q; | |
917 | } | |
918 | ||
e3dd987c LP |
919 | /* We might have deserialized the kdbus control fd, but if we |
920 | * didn't, then let's create the bus now. */ | |
921 | manager_setup_kdbus(m); | |
922 | manager_connect_bus(m, !!serialization); | |
923 | ||
a16e1123 | 924 | /* Third, fire things up! */ |
07719a21 LP |
925 | q = manager_coldplug(m); |
926 | if (q < 0) | |
a16e1123 LP |
927 | r = q; |
928 | ||
9f611ad8 | 929 | if (serialization) { |
a7556052 LP |
930 | assert(m->n_reloading > 0); |
931 | m->n_reloading --; | |
71445ae7 LP |
932 | |
933 | /* Let's wait for the UnitNew/JobNew messages being | |
934 | * sent, before we notify that the reload is | |
935 | * finished */ | |
936 | m->send_reloading_done = true; | |
9f611ad8 LP |
937 | } |
938 | ||
a16e1123 | 939 | return r; |
f50e0a01 LP |
940 | } |
941 | ||
718db961 | 942 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 943 | int r; |
7527cb52 | 944 | Transaction *tr; |
e5b5ae50 LP |
945 | |
946 | assert(m); | |
947 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 948 | assert(unit); |
e5b5ae50 | 949 | assert(mode < _JOB_MODE_MAX); |
60918275 | 950 | |
398ef8ba | 951 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 952 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 953 | return -EINVAL; |
398ef8ba | 954 | } |
c497c7a9 | 955 | |
ac155bb8 | 956 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 957 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
958 | return -EPERM; |
959 | } | |
960 | ||
66870f90 ZJS |
961 | log_debug_unit(unit->id, |
962 | "Trying to enqueue job %s/%s/%s", unit->id, | |
963 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 964 | |
e0209d83 MS |
965 | job_type_collapse(&type, unit); |
966 | ||
23ade460 | 967 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
968 | if (!tr) |
969 | return -ENOMEM; | |
11dd41ce | 970 | |
7527cb52 MS |
971 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
972 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 973 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
974 | if (r < 0) |
975 | goto tr_abort; | |
c497c7a9 | 976 | |
7527cb52 MS |
977 | if (mode == JOB_ISOLATE) { |
978 | r = transaction_add_isolate_jobs(tr, m); | |
979 | if (r < 0) | |
980 | goto tr_abort; | |
981 | } | |
982 | ||
983 | r = transaction_activate(tr, m, mode, e); | |
984 | if (r < 0) | |
985 | goto tr_abort; | |
e5b5ae50 | 986 | |
66870f90 ZJS |
987 | log_debug_unit(unit->id, |
988 | "Enqueued job %s/%s as %u", unit->id, | |
989 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 990 | |
e5b5ae50 | 991 | if (_ret) |
b94fbd30 | 992 | *_ret = tr->anchor_job; |
60918275 | 993 | |
7527cb52 | 994 | transaction_free(tr); |
e5b5ae50 | 995 | return 0; |
7527cb52 MS |
996 | |
997 | tr_abort: | |
998 | transaction_abort(tr); | |
999 | transaction_free(tr); | |
1000 | return r; | |
e5b5ae50 | 1001 | } |
60918275 | 1002 | |
718db961 | 1003 | 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 |
1004 | Unit *unit; |
1005 | int r; | |
1006 | ||
1007 | assert(m); | |
1008 | assert(type < _JOB_TYPE_MAX); | |
1009 | assert(name); | |
1010 | assert(mode < _JOB_MODE_MAX); | |
1011 | ||
c3090674 LP |
1012 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1013 | if (r < 0) | |
28247076 LP |
1014 | return r; |
1015 | ||
398ef8ba | 1016 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
1017 | } |
1018 | ||
60918275 LP |
1019 | Job *manager_get_job(Manager *m, uint32_t id) { |
1020 | assert(m); | |
1021 | ||
1022 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1023 | } | |
1024 | ||
87f0e418 | 1025 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1026 | assert(m); |
1027 | assert(name); | |
1028 | ||
87f0e418 | 1029 | return hashmap_get(m->units, name); |
60918275 LP |
1030 | } |
1031 | ||
c1e1601e | 1032 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1033 | Unit *u; |
c1e1601e | 1034 | unsigned n = 0; |
60918275 LP |
1035 | |
1036 | assert(m); | |
1037 | ||
223dabab LP |
1038 | /* Make sure we are not run recursively */ |
1039 | if (m->dispatching_load_queue) | |
c1e1601e | 1040 | return 0; |
223dabab LP |
1041 | |
1042 | m->dispatching_load_queue = true; | |
1043 | ||
87f0e418 | 1044 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1045 | * tries to load its data until the queue is empty */ |
1046 | ||
595ed347 MS |
1047 | while ((u = m->load_queue)) { |
1048 | assert(u->in_load_queue); | |
034c6ed7 | 1049 | |
595ed347 | 1050 | unit_load(u); |
c1e1601e | 1051 | n++; |
60918275 LP |
1052 | } |
1053 | ||
223dabab | 1054 | m->dispatching_load_queue = false; |
c1e1601e | 1055 | return n; |
60918275 LP |
1056 | } |
1057 | ||
c2756a68 LP |
1058 | int manager_load_unit_prepare( |
1059 | Manager *m, | |
1060 | const char *name, | |
1061 | const char *path, | |
718db961 | 1062 | sd_bus_error *e, |
c2756a68 LP |
1063 | Unit **_ret) { |
1064 | ||
87f0e418 | 1065 | Unit *ret; |
7d17cfbc | 1066 | UnitType t; |
60918275 LP |
1067 | int r; |
1068 | ||
1069 | assert(m); | |
9e2f7c11 | 1070 | assert(name || path); |
60918275 | 1071 | |
db06e3b6 LP |
1072 | /* This will prepare the unit for loading, but not actually |
1073 | * load anything from disk. */ | |
0301abf4 | 1074 | |
718db961 LP |
1075 | if (path && !is_path(path)) |
1076 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1077 | |
1078 | if (!name) | |
2b6bf07d | 1079 | name = basename(path); |
9e2f7c11 | 1080 | |
7d17cfbc MS |
1081 | t = unit_name_to_type(name); |
1082 | ||
718db961 LP |
1083 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) |
1084 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); | |
60918275 | 1085 | |
7d17cfbc MS |
1086 | ret = manager_get_unit(m, name); |
1087 | if (ret) { | |
034c6ed7 | 1088 | *_ret = ret; |
413d6313 | 1089 | return 1; |
034c6ed7 | 1090 | } |
60918275 | 1091 | |
7d17cfbc MS |
1092 | ret = unit_new(m, unit_vtable[t]->object_size); |
1093 | if (!ret) | |
60918275 LP |
1094 | return -ENOMEM; |
1095 | ||
7d17cfbc | 1096 | if (path) { |
ac155bb8 MS |
1097 | ret->fragment_path = strdup(path); |
1098 | if (!ret->fragment_path) { | |
0301abf4 LP |
1099 | unit_free(ret); |
1100 | return -ENOMEM; | |
1101 | } | |
7d17cfbc | 1102 | } |
0301abf4 | 1103 | |
1058cbf2 ZJS |
1104 | r = unit_add_name(ret, name); |
1105 | if (r < 0) { | |
87f0e418 | 1106 | unit_free(ret); |
1ffba6fe | 1107 | return r; |
60918275 LP |
1108 | } |
1109 | ||
87f0e418 | 1110 | unit_add_to_load_queue(ret); |
c1e1601e | 1111 | unit_add_to_dbus_queue(ret); |
949061f0 | 1112 | unit_add_to_gc_queue(ret); |
c1e1601e | 1113 | |
db06e3b6 LP |
1114 | if (_ret) |
1115 | *_ret = ret; | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
c2756a68 LP |
1120 | int manager_load_unit( |
1121 | Manager *m, | |
1122 | const char *name, | |
1123 | const char *path, | |
718db961 | 1124 | sd_bus_error *e, |
c2756a68 LP |
1125 | Unit **_ret) { |
1126 | ||
db06e3b6 LP |
1127 | int r; |
1128 | ||
1129 | assert(m); | |
1130 | ||
1131 | /* This will load the service information files, but not actually | |
1132 | * start any services or anything. */ | |
1133 | ||
c3090674 LP |
1134 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1135 | if (r != 0) | |
db06e3b6 LP |
1136 | return r; |
1137 | ||
f50e0a01 | 1138 | manager_dispatch_load_queue(m); |
60918275 | 1139 | |
9e2f7c11 | 1140 | if (_ret) |
413d6313 | 1141 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1142 | |
60918275 LP |
1143 | return 0; |
1144 | } | |
a66d02c3 | 1145 | |
cea8e32e | 1146 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1147 | Iterator i; |
a66d02c3 LP |
1148 | Job *j; |
1149 | ||
1150 | assert(s); | |
1151 | assert(f); | |
1152 | ||
034c6ed7 | 1153 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1154 | job_dump(j, f, prefix); |
a66d02c3 LP |
1155 | } |
1156 | ||
87f0e418 | 1157 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1158 | Iterator i; |
87f0e418 | 1159 | Unit *u; |
11dd41ce | 1160 | const char *t; |
a66d02c3 LP |
1161 | |
1162 | assert(s); | |
1163 | assert(f); | |
1164 | ||
87f0e418 | 1165 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1166 | if (u->id == t) |
87f0e418 | 1167 | unit_dump(u, f, prefix); |
a66d02c3 | 1168 | } |
7fad411c LP |
1169 | |
1170 | void manager_clear_jobs(Manager *m) { | |
1171 | Job *j; | |
1172 | ||
1173 | assert(m); | |
1174 | ||
7fad411c | 1175 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1176 | /* No need to recurse. We're cancelling all jobs. */ |
1177 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1178 | } |
83c60c9f | 1179 | |
752b5905 LP |
1180 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
1181 | Manager *m = userdata; | |
83c60c9f | 1182 | Job *j; |
034c6ed7 | 1183 | |
752b5905 LP |
1184 | assert(source); |
1185 | assert(m); | |
9152c765 | 1186 | |
034c6ed7 | 1187 | while ((j = m->run_queue)) { |
ac1135be | 1188 | assert(j->installed); |
034c6ed7 LP |
1189 | assert(j->in_run_queue); |
1190 | ||
1191 | job_run_and_invalidate(j); | |
9152c765 | 1192 | } |
034c6ed7 | 1193 | |
a0b64226 | 1194 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1195 | manager_watch_jobs_in_progress(m); |
1196 | ||
31a7eb86 ZJS |
1197 | if (m->n_on_console > 0) |
1198 | manager_watch_idle_pipe(m); | |
1199 | ||
752b5905 | 1200 | return 1; |
c1e1601e LP |
1201 | } |
1202 | ||
9588bc32 | 1203 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1204 | Job *j; |
595ed347 | 1205 | Unit *u; |
c1e1601e LP |
1206 | unsigned n = 0; |
1207 | ||
1208 | assert(m); | |
1209 | ||
1210 | if (m->dispatching_dbus_queue) | |
1211 | return 0; | |
1212 | ||
1213 | m->dispatching_dbus_queue = true; | |
1214 | ||
595ed347 MS |
1215 | while ((u = m->dbus_unit_queue)) { |
1216 | assert(u->in_dbus_queue); | |
c1e1601e | 1217 | |
595ed347 | 1218 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1219 | n++; |
1220 | } | |
1221 | ||
1222 | while ((j = m->dbus_job_queue)) { | |
1223 | assert(j->in_dbus_queue); | |
1224 | ||
1225 | bus_job_send_change_signal(j); | |
1226 | n++; | |
1227 | } | |
1228 | ||
1229 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1230 | |
1231 | if (m->send_reloading_done) { | |
1232 | m->send_reloading_done = false; | |
1233 | ||
718db961 | 1234 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1235 | } |
1236 | ||
718db961 LP |
1237 | if (m->queued_message) |
1238 | bus_send_queued_message(m); | |
1239 | ||
c1e1601e | 1240 | return n; |
9152c765 LP |
1241 | } |
1242 | ||
718db961 LP |
1243 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1244 | Manager *m = userdata; | |
8c47c732 LP |
1245 | ssize_t n; |
1246 | ||
1247 | assert(m); | |
718db961 LP |
1248 | assert(m->notify_fd == fd); |
1249 | ||
1250 | if (revents != EPOLLIN) { | |
1251 | log_warning("Got unexpected poll event for notify fd."); | |
1252 | return 0; | |
1253 | } | |
8c47c732 LP |
1254 | |
1255 | for (;;) { | |
1256 | char buf[4096]; | |
b92bea5d ZJS |
1257 | struct iovec iovec = { |
1258 | .iov_base = buf, | |
1259 | .iov_len = sizeof(buf)-1, | |
1260 | }; | |
1261 | ||
8c47c732 LP |
1262 | union { |
1263 | struct cmsghdr cmsghdr; | |
1264 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1265 | } control = {}; |
1266 | ||
1267 | struct msghdr msghdr = { | |
1268 | .msg_iov = &iovec, | |
1269 | .msg_iovlen = 1, | |
1270 | .msg_control = &control, | |
1271 | .msg_controllen = sizeof(control), | |
1272 | }; | |
1273 | struct ucred *ucred; | |
8c47c732 | 1274 | Unit *u; |
7fd1b19b | 1275 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1276 | |
718db961 | 1277 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1278 | if (n <= 0) { |
b92bea5d | 1279 | if (n == 0) |
8c47c732 LP |
1280 | return -EIO; |
1281 | ||
f6144808 | 1282 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1283 | break; |
1284 | ||
1285 | return -errno; | |
1286 | } | |
1287 | ||
1288 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1289 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1290 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1291 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1292 | log_warning("Received notify message without credentials. Ignoring."); | |
1293 | continue; | |
1294 | } | |
1295 | ||
1296 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1297 | ||
bd0af849 ZJS |
1298 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1299 | if (!u) { | |
4ad49000 | 1300 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1301 | if (!u) { |
7989e1f2 | 1302 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1303 | continue; |
1304 | } | |
bd0af849 | 1305 | } |
8c47c732 | 1306 | |
8c40acf7 LP |
1307 | assert((size_t) n < sizeof(buf)); |
1308 | buf[n] = 0; | |
bd0af849 ZJS |
1309 | tags = strv_split(buf, "\n\r"); |
1310 | if (!tags) | |
1311 | return log_oom(); | |
8c47c732 | 1312 | |
66870f90 | 1313 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1314 | |
1315 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1316 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1317 | } |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
034c6ed7 | 1322 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1323 | assert(m); |
1324 | ||
1325 | for (;;) { | |
b92bea5d | 1326 | siginfo_t si = {}; |
87f0e418 | 1327 | Unit *u; |
8c47c732 | 1328 | int r; |
9152c765 | 1329 | |
4112df16 LP |
1330 | /* First we call waitd() for a PID and do not reap the |
1331 | * zombie. That way we can still access /proc/$PID for | |
1332 | * it while it is a zombie. */ | |
1333 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1334 | |
1335 | if (errno == ECHILD) | |
1336 | break; | |
1337 | ||
4112df16 LP |
1338 | if (errno == EINTR) |
1339 | continue; | |
1340 | ||
9152c765 | 1341 | return -errno; |
acbb0225 | 1342 | } |
9152c765 | 1343 | |
4112df16 | 1344 | if (si.si_pid <= 0) |
9152c765 LP |
1345 | break; |
1346 | ||
15d5d9d9 | 1347 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1348 | _cleanup_free_ char *name = NULL; |
4112df16 | 1349 | |
87d2c1ff | 1350 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1351 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1352 | } |
1353 | ||
8c47c732 LP |
1354 | /* Let's flush any message the dying child might still |
1355 | * have queued for us. This ensures that the process | |
1356 | * still exists in /proc so that we can figure out | |
1357 | * which cgroup and hence unit it belongs to. */ | |
718db961 | 1358 | r = manager_dispatch_notify_fd(m->notify_event_source, m->notify_fd, EPOLLIN, m); |
bd0af849 | 1359 | if (r < 0) |
8c47c732 LP |
1360 | return r; |
1361 | ||
1362 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1363 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1364 | if (!u) | |
4ad49000 | 1365 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1366 | |
4112df16 LP |
1367 | /* And now, we actually reap the zombie. */ |
1368 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1369 | if (errno == EINTR) | |
1370 | continue; | |
1371 | ||
1372 | return -errno; | |
1373 | } | |
1374 | ||
034c6ed7 LP |
1375 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1376 | continue; | |
1377 | ||
bb00e604 LP |
1378 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1379 | (long unsigned) si.si_pid, | |
4112df16 LP |
1380 | sigchld_code_to_string(si.si_code), |
1381 | si.si_status, | |
d06dacd0 LP |
1382 | strna(si.si_code == CLD_EXITED |
1383 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1384 | : signal_to_string(si.si_status))); | |
acbb0225 | 1385 | |
8c47c732 | 1386 | if (!u) |
9152c765 LP |
1387 | continue; |
1388 | ||
66870f90 ZJS |
1389 | log_debug_unit(u->id, |
1390 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1391 | |
c6c18be3 | 1392 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1393 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1394 | } |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
7d793605 | 1399 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1400 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1401 | int r; |
398ef8ba | 1402 | |
66870f90 | 1403 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1404 | |
bd0af849 ZJS |
1405 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1406 | if (r < 0) | |
718db961 | 1407 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1408 | |
1409 | return r; | |
28247076 LP |
1410 | } |
1411 | ||
718db961 LP |
1412 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1413 | Manager *m = userdata; | |
9152c765 LP |
1414 | ssize_t n; |
1415 | struct signalfd_siginfo sfsi; | |
1416 | bool sigchld = false; | |
1417 | ||
1418 | assert(m); | |
718db961 LP |
1419 | assert(m->signal_fd == fd); |
1420 | ||
1421 | if (revents != EPOLLIN) { | |
1422 | log_warning("Got unexpected events from signal file descriptor."); | |
1423 | return 0; | |
1424 | } | |
9152c765 LP |
1425 | |
1426 | for (;;) { | |
718db961 | 1427 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1428 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1429 | |
1430 | if (n >= 0) | |
1431 | return -EIO; | |
1432 | ||
63090775 | 1433 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1434 | break; |
9152c765 LP |
1435 | |
1436 | return -errno; | |
1437 | } | |
1438 | ||
67370238 LP |
1439 | if (sfsi.ssi_pid > 0) { |
1440 | char *p = NULL; | |
1441 | ||
87d2c1ff | 1442 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1443 | |
67370238 | 1444 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1445 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1446 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1447 | free(p); | |
1448 | } else | |
4e240ab0 | 1449 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1450 | |
b9cd2ec1 LP |
1451 | switch (sfsi.ssi_signo) { |
1452 | ||
4112df16 | 1453 | case SIGCHLD: |
9152c765 | 1454 | sigchld = true; |
b9cd2ec1 LP |
1455 | break; |
1456 | ||
6632c602 | 1457 | case SIGTERM: |
67445f4e | 1458 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1459 | /* This is for compatibility with the |
1460 | * original sysvinit */ | |
e11dc4a2 | 1461 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1462 | break; |
1463 | } | |
84e9af1e | 1464 | |
a1b256b0 | 1465 | /* Fall through */ |
e11dc4a2 LP |
1466 | |
1467 | case SIGINT: | |
67445f4e | 1468 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1469 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1470 | break; |
1471 | } | |
1472 | ||
a1b256b0 | 1473 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1474 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1475 | m->exit_code = MANAGER_EXIT; |
1476 | return 0; | |
1477 | } | |
1478 | ||
1479 | break; | |
84e9af1e | 1480 | |
28247076 | 1481 | case SIGWINCH: |
67445f4e | 1482 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1483 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1484 | |
28247076 LP |
1485 | /* This is a nop on non-init */ |
1486 | break; | |
84e9af1e | 1487 | |
28247076 | 1488 | case SIGPWR: |
67445f4e | 1489 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1490 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1491 | |
28247076 | 1492 | /* This is a nop on non-init */ |
84e9af1e | 1493 | break; |
6632c602 | 1494 | |
1005d14f | 1495 | case SIGUSR1: { |
57ee42ce LP |
1496 | Unit *u; |
1497 | ||
1498 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1499 | ||
1500 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1501 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1502 | bus_init(m, true); |
57ee42ce LP |
1503 | } |
1504 | ||
1505 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1506 | log_info("Loading D-Bus service..."); | |
7d793605 | 1507 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1508 | } |
1509 | ||
1510 | break; | |
1511 | } | |
1512 | ||
2149e37c | 1513 | case SIGUSR2: { |
718db961 LP |
1514 | _cleanup_free_ char *dump = NULL; |
1515 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1516 | size_t size; |
1517 | ||
718db961 LP |
1518 | f = open_memstream(&dump, &size); |
1519 | if (!f) { | |
2149e37c LP |
1520 | log_warning("Failed to allocate memory stream."); |
1521 | break; | |
1522 | } | |
1523 | ||
1524 | manager_dump_units(m, f, "\t"); | |
1525 | manager_dump_jobs(m, f, "\t"); | |
1526 | ||
1527 | if (ferror(f)) { | |
2149e37c LP |
1528 | log_warning("Failed to write status stream"); |
1529 | break; | |
1530 | } | |
1531 | ||
2149e37c | 1532 | log_dump(LOG_INFO, dump); |
1005d14f | 1533 | break; |
2149e37c | 1534 | } |
1005d14f | 1535 | |
a16e1123 LP |
1536 | case SIGHUP: |
1537 | m->exit_code = MANAGER_RELOAD; | |
1538 | break; | |
1539 | ||
7d793605 | 1540 | default: { |
253ee27a | 1541 | |
0003d1ab LP |
1542 | /* Starting SIGRTMIN+0 */ |
1543 | static const char * const target_table[] = { | |
7d793605 LP |
1544 | [0] = SPECIAL_DEFAULT_TARGET, |
1545 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1546 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1547 | [3] = SPECIAL_HALT_TARGET, |
1548 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1549 | [5] = SPECIAL_REBOOT_TARGET, |
1550 | [6] = SPECIAL_KEXEC_TARGET | |
1551 | }; | |
1552 | ||
1553 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1554 | static const ManagerExitCode code_table[] = { | |
1555 | [0] = MANAGER_HALT, | |
1556 | [1] = MANAGER_POWEROFF, | |
1557 | [2] = MANAGER_REBOOT, | |
1558 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1559 | }; |
1560 | ||
1561 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1562 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1563 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1564 | manager_start_target(m, target_table[idx], | |
1565 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1566 | break; |
1567 | } | |
1568 | ||
0003d1ab LP |
1569 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1570 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1571 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1572 | break; | |
1573 | } | |
1574 | ||
0658666b LP |
1575 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1576 | ||
1577 | case 20: | |
1578 | log_debug("Enabling showing of status."); | |
27d340c7 | 1579 | manager_set_show_status(m, true); |
0658666b LP |
1580 | break; |
1581 | ||
1582 | case 21: | |
1583 | log_debug("Disabling showing of status."); | |
27d340c7 | 1584 | manager_set_show_status(m, false); |
0658666b LP |
1585 | break; |
1586 | ||
253ee27a LP |
1587 | case 22: |
1588 | log_set_max_level(LOG_DEBUG); | |
1589 | log_notice("Setting log level to debug."); | |
1590 | break; | |
1591 | ||
1592 | case 23: | |
1593 | log_set_max_level(LOG_INFO); | |
1594 | log_notice("Setting log level to info."); | |
1595 | break; | |
1596 | ||
600b704e LP |
1597 | case 24: |
1598 | if (m->running_as == SYSTEMD_USER) { | |
1599 | m->exit_code = MANAGER_EXIT; | |
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | /* This is a nop on init */ | |
1604 | break; | |
1605 | ||
4cfa2c99 LP |
1606 | case 26: |
1607 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1608 | log_notice("Setting log target to journal-or-kmsg."); | |
1609 | break; | |
1610 | ||
253ee27a LP |
1611 | case 27: |
1612 | log_set_target(LOG_TARGET_CONSOLE); | |
1613 | log_notice("Setting log target to console."); | |
1614 | break; | |
1615 | ||
1616 | case 28: | |
1617 | log_set_target(LOG_TARGET_KMSG); | |
1618 | log_notice("Setting log target to kmsg."); | |
1619 | break; | |
1620 | ||
1621 | case 29: | |
1622 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1623 | log_notice("Setting log target to syslog-or-kmsg."); | |
1624 | break; | |
1625 | ||
0658666b | 1626 | default: |
4e240ab0 | 1627 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1628 | } |
b9cd2ec1 | 1629 | } |
7d793605 | 1630 | } |
9152c765 LP |
1631 | } |
1632 | ||
1633 | if (sigchld) | |
034c6ed7 LP |
1634 | return manager_dispatch_sigchld(m); |
1635 | ||
1636 | return 0; | |
1637 | } | |
1638 | ||
718db961 LP |
1639 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1640 | Manager *m = userdata; | |
1641 | Iterator i; | |
1642 | Unit *u; | |
034c6ed7 LP |
1643 | |
1644 | assert(m); | |
718db961 | 1645 | assert(m->time_change_fd == fd); |
034c6ed7 | 1646 | |
718db961 LP |
1647 | log_struct(LOG_INFO, |
1648 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1649 | "MESSAGE=Time has been changed", | |
1650 | NULL); | |
034c6ed7 | 1651 | |
718db961 LP |
1652 | /* Restart the watch */ |
1653 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1654 | |
718db961 LP |
1655 | close_nointr_nofail(m->time_change_fd); |
1656 | m->time_change_fd = -1; | |
ef734fd6 | 1657 | |
718db961 | 1658 | manager_setup_time_change(m); |
4e434314 | 1659 | |
718db961 LP |
1660 | HASHMAP_FOREACH(u, m->units, i) |
1661 | if (UNIT_VTABLE(u)->time_change) | |
1662 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1663 | |
718db961 LP |
1664 | return 0; |
1665 | } | |
ea430986 | 1666 | |
718db961 LP |
1667 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1668 | Manager *m = userdata; | |
8742514c | 1669 | |
718db961 LP |
1670 | assert(m); |
1671 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1672 | |
718db961 | 1673 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1674 | |
718db961 LP |
1675 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1676 | manager_close_idle_pipe(m); | |
03b717a3 | 1677 | |
718db961 LP |
1678 | return 0; |
1679 | } | |
31a7eb86 | 1680 | |
718db961 LP |
1681 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1682 | Manager *m = userdata; | |
31a7eb86 | 1683 | |
718db961 | 1684 | assert(m); |
9152c765 | 1685 | |
718db961 | 1686 | manager_print_jobs_in_progress(m); |
9152c765 LP |
1687 | return 0; |
1688 | } | |
1689 | ||
1690 | int manager_loop(Manager *m) { | |
1691 | int r; | |
9152c765 | 1692 | |
fac9f8df | 1693 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1694 | |
9152c765 | 1695 | assert(m); |
a16e1123 | 1696 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1697 | |
fe51822e LP |
1698 | /* Release the path cache */ |
1699 | set_free_free(m->unit_path_cache); | |
1700 | m->unit_path_cache = NULL; | |
1701 | ||
b0c918b9 LP |
1702 | manager_check_finished(m); |
1703 | ||
a4312405 | 1704 | /* There might still be some zombies hanging around from |
f3669545 | 1705 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1706 | r = manager_dispatch_sigchld(m); |
1707 | if (r < 0) | |
a4312405 LP |
1708 | return r; |
1709 | ||
a16e1123 | 1710 | while (m->exit_code == MANAGER_RUNNING) { |
718db961 | 1711 | usec_t wait_usec; |
9152c765 | 1712 | |
67445f4e | 1713 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1714 | watchdog_ping(); |
1715 | ||
ea430986 LP |
1716 | if (!ratelimit_test(&rl)) { |
1717 | /* Yay, something is going seriously wrong, pause a little */ | |
1718 | log_warning("Looping too fast. Throttling execution a little."); | |
1719 | sleep(1); | |
e96d6be7 | 1720 | continue; |
ea430986 LP |
1721 | } |
1722 | ||
37a8e683 | 1723 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1724 | continue; |
1725 | ||
cf1265e1 | 1726 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1727 | continue; |
1728 | ||
cf1265e1 | 1729 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1730 | continue; |
034c6ed7 | 1731 | |
cf1265e1 | 1732 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1733 | continue; |
1734 | ||
c1e1601e | 1735 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 1736 | continue; |
ea430986 | 1737 | |
c757a65b | 1738 | /* Sleep for half the watchdog time */ |
67445f4e | 1739 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1740 | wait_usec = m->runtime_watchdog / 2; |
1741 | if (wait_usec <= 0) | |
1742 | wait_usec = 1; | |
c757a65b | 1743 | } else |
718db961 | 1744 | wait_usec = (usec_t) -1; |
9152c765 | 1745 | |
718db961 LP |
1746 | r = sd_event_run(m->event, wait_usec); |
1747 | if (r < 0) { | |
1748 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1749 | return r; |
718db961 | 1750 | } |
a16e1123 | 1751 | } |
957ca890 | 1752 | |
a16e1123 | 1753 | return m->exit_code; |
83c60c9f | 1754 | } |
ea430986 | 1755 | |
718db961 | 1756 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1757 | _cleanup_free_ char *n = NULL; |
ea430986 | 1758 | Unit *u; |
80fbf05e | 1759 | int r; |
ea430986 LP |
1760 | |
1761 | assert(m); | |
1762 | assert(s); | |
1763 | assert(_u); | |
1764 | ||
ede3a796 LP |
1765 | r = unit_name_from_dbus_path(s, &n); |
1766 | if (r < 0) | |
1767 | return r; | |
ea430986 | 1768 | |
80fbf05e | 1769 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1770 | if (r < 0) |
1771 | return r; | |
ea430986 LP |
1772 | |
1773 | *_u = u; | |
1774 | ||
1775 | return 0; | |
1776 | } | |
86fbf370 LP |
1777 | |
1778 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1779 | const char *p; |
86fbf370 | 1780 | unsigned id; |
718db961 | 1781 | Job *j; |
86fbf370 LP |
1782 | int r; |
1783 | ||
1784 | assert(m); | |
1785 | assert(s); | |
1786 | assert(_j); | |
1787 | ||
718db961 LP |
1788 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1789 | if (!p) | |
86fbf370 LP |
1790 | return -EINVAL; |
1791 | ||
718db961 | 1792 | r = safe_atou(p, &id); |
8742514c | 1793 | if (r < 0) |
86fbf370 LP |
1794 | return r; |
1795 | ||
8742514c LP |
1796 | j = manager_get_job(m, id); |
1797 | if (!j) | |
86fbf370 LP |
1798 | return -ENOENT; |
1799 | ||
1800 | *_j = j; | |
1801 | ||
1802 | return 0; | |
1803 | } | |
dfcd764e | 1804 | |
4927fcae | 1805 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1806 | |
4927fcae LP |
1807 | #ifdef HAVE_AUDIT |
1808 | char *p; | |
c1165f82 | 1809 | int audit_fd; |
e537352b | 1810 | |
c1165f82 LP |
1811 | audit_fd = get_audit_fd(); |
1812 | if (audit_fd < 0) | |
e537352b LP |
1813 | return; |
1814 | ||
bbd3a7ba LP |
1815 | /* Don't generate audit events if the service was already |
1816 | * started and we're just deserializing */ | |
a7556052 | 1817 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1818 | return; |
1819 | ||
67445f4e | 1820 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1821 | return; |
1822 | ||
ac155bb8 | 1823 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1824 | return; |
1825 | ||
bd0af849 ZJS |
1826 | p = unit_name_to_prefix_and_instance(u->id); |
1827 | if (!p) { | |
66870f90 ZJS |
1828 | log_error_unit(u->id, |
1829 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1830 | return; |
1831 | } | |
1832 | ||
c1165f82 | 1833 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1834 | if (errno == EPERM) { |
1835 | /* We aren't allowed to send audit messages? | |
44785992 | 1836 | * Then let's not retry again. */ |
c1165f82 | 1837 | close_audit_fd(); |
44785992 LP |
1838 | } else |
1839 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1840 | } |
e537352b | 1841 | |
4927fcae LP |
1842 | free(p); |
1843 | #endif | |
e537352b | 1844 | |
e537352b LP |
1845 | } |
1846 | ||
e983b760 LP |
1847 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1848 | int fd = -1; | |
1849 | union sockaddr_union sa; | |
1850 | int n = 0; | |
1851 | char *message = NULL; | |
e983b760 LP |
1852 | |
1853 | /* Don't generate plymouth events if the service was already | |
1854 | * started and we're just deserializing */ | |
a7556052 | 1855 | if (m->n_reloading > 0) |
e983b760 LP |
1856 | return; |
1857 | ||
67445f4e | 1858 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1859 | return; |
1860 | ||
3772995a LP |
1861 | if (detect_container(NULL) > 0) |
1862 | return; | |
1863 | ||
ac155bb8 MS |
1864 | if (u->type != UNIT_SERVICE && |
1865 | u->type != UNIT_MOUNT && | |
1866 | u->type != UNIT_SWAP) | |
e983b760 LP |
1867 | return; |
1868 | ||
1869 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1870 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1871 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1872 | if (fd < 0) { | |
e983b760 LP |
1873 | log_error("socket() failed: %m"); |
1874 | return; | |
1875 | } | |
1876 | ||
1877 | zero(sa); | |
1878 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1879 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1880 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1881 | |
1882 | if (errno != EPIPE && | |
1883 | errno != EAGAIN && | |
1884 | errno != ENOENT && | |
1885 | errno != ECONNREFUSED && | |
1886 | errno != ECONNRESET && | |
1887 | errno != ECONNABORTED) | |
1888 | log_error("connect() failed: %m"); | |
1889 | ||
1890 | goto finish; | |
1891 | } | |
1892 | ||
ac155bb8 | 1893 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1894 | log_oom(); |
e983b760 LP |
1895 | goto finish; |
1896 | } | |
1897 | ||
1898 | errno = 0; | |
bd40a2d8 | 1899 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1900 | |
1901 | if (errno != EPIPE && | |
1902 | errno != EAGAIN && | |
1903 | errno != ENOENT && | |
1904 | errno != ECONNREFUSED && | |
1905 | errno != ECONNRESET && | |
1906 | errno != ECONNABORTED) | |
1907 | log_error("Failed to write Plymouth message: %m"); | |
1908 | ||
1909 | goto finish; | |
1910 | } | |
1911 | ||
1912 | finish: | |
1913 | if (fd >= 0) | |
1914 | close_nointr_nofail(fd); | |
1915 | ||
1916 | free(message); | |
1917 | } | |
1918 | ||
05e343b7 LP |
1919 | void manager_dispatch_bus_name_owner_changed( |
1920 | Manager *m, | |
1921 | const char *name, | |
1922 | const char* old_owner, | |
1923 | const char *new_owner) { | |
1924 | ||
1925 | Unit *u; | |
1926 | ||
1927 | assert(m); | |
1928 | assert(name); | |
1929 | ||
718db961 LP |
1930 | u = hashmap_get(m->watch_bus, name); |
1931 | if (!u) | |
05e343b7 LP |
1932 | return; |
1933 | ||
1934 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1935 | } | |
1936 | ||
d8d5ab98 | 1937 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1938 | char *path = NULL; |
df28bc08 | 1939 | int fd = -1; |
a16e1123 LP |
1940 | FILE *f; |
1941 | ||
1942 | assert(_f); | |
1943 | ||
67445f4e | 1944 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1945 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1946 | else |
1947 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1948 | |
b925e726 LP |
1949 | if (!path) |
1950 | return -ENOMEM; | |
a16e1123 | 1951 | |
5c0d398d LP |
1952 | RUN_WITH_UMASK(0077) { |
1953 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1954 | } | |
a16e1123 LP |
1955 | |
1956 | if (fd < 0) { | |
1957 | free(path); | |
1958 | return -errno; | |
1959 | } | |
1960 | ||
1961 | unlink(path); | |
1962 | ||
1963 | log_debug("Serializing state to %s", path); | |
1964 | free(path); | |
1965 | ||
01e10de3 LP |
1966 | f = fdopen(fd, "w+"); |
1967 | if (!f) | |
a16e1123 LP |
1968 | return -errno; |
1969 | ||
1970 | *_f = f; | |
1971 | ||
1972 | return 0; | |
1973 | } | |
1974 | ||
b3680f49 | 1975 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
1976 | Iterator i; |
1977 | Unit *u; | |
1978 | const char *t; | |
4a9fd066 | 1979 | char **e; |
a16e1123 LP |
1980 | int r; |
1981 | ||
1982 | assert(m); | |
1983 | assert(f); | |
1984 | assert(fds); | |
1985 | ||
a7556052 | 1986 | m->n_reloading ++; |
38c52d46 | 1987 | |
01d67b43 LP |
1988 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
1989 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
1990 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
1991 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 1992 | |
915b3753 | 1993 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 1994 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 1995 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 1996 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 1997 | |
26a1efdf | 1998 | if (!in_initrd()) { |
915b3753 | 1999 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 2000 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
2001 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
2002 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
2003 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
2004 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
2005 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
2006 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 2007 | } |
47a483a1 | 2008 | |
b3680f49 HH |
2009 | if (!switching_root) { |
2010 | STRV_FOREACH(e, m->environment) { | |
2011 | _cleanup_free_ char *ce; | |
4a9fd066 | 2012 | |
b3680f49 | 2013 | ce = cescape(*e); |
e3dd987c LP |
2014 | if (!ce) |
2015 | return -ENOMEM; | |
2016 | ||
2017 | fprintf(f, "env=%s\n", *e); | |
b3680f49 | 2018 | } |
4a9fd066 OS |
2019 | } |
2020 | ||
e3dd987c LP |
2021 | if (m->kdbus_fd >= 0) { |
2022 | int copy; | |
2023 | ||
2024 | copy = fdset_put_dup(fds, m->kdbus_fd); | |
2025 | if (copy < 0) | |
2026 | return copy; | |
2027 | ||
2028 | fprintf(f, "kdbus-fd=%i\n", copy); | |
2029 | } | |
2030 | ||
6fa48533 LP |
2031 | bus_serialize(m, f); |
2032 | ||
f2382a94 LP |
2033 | fputc('\n', f); |
2034 | ||
a16e1123 | 2035 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 2036 | if (u->id != t) |
a16e1123 LP |
2037 | continue; |
2038 | ||
2039 | if (!unit_can_serialize(u)) | |
2040 | continue; | |
2041 | ||
2042 | /* Start marker */ | |
ac155bb8 | 2043 | fputs(u->id, f); |
a16e1123 LP |
2044 | fputc('\n', f); |
2045 | ||
6fa48533 LP |
2046 | r = unit_serialize(u, f, fds, !switching_root); |
2047 | if (r < 0) { | |
a7556052 | 2048 | m->n_reloading --; |
a16e1123 | 2049 | return r; |
38c52d46 | 2050 | } |
a16e1123 LP |
2051 | } |
2052 | ||
a7556052 LP |
2053 | assert(m->n_reloading > 0); |
2054 | m->n_reloading --; | |
38c52d46 | 2055 | |
a16e1123 LP |
2056 | if (ferror(f)) |
2057 | return -EIO; | |
2058 | ||
b23de6af LP |
2059 | r = bus_fdset_add_all(m, fds); |
2060 | if (r < 0) | |
2061 | return r; | |
2062 | ||
a16e1123 LP |
2063 | return 0; |
2064 | } | |
2065 | ||
2066 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2067 | int r = 0; | |
2068 | ||
2069 | assert(m); | |
2070 | assert(f); | |
2071 | ||
2072 | log_debug("Deserializing state..."); | |
2073 | ||
a7556052 | 2074 | m->n_reloading ++; |
82c64bf5 | 2075 | |
10f8e83c | 2076 | for (;;) { |
20c03b7b | 2077 | char line[LINE_MAX], *l; |
10f8e83c LP |
2078 | |
2079 | if (!fgets(line, sizeof(line), f)) { | |
2080 | if (feof(f)) | |
2081 | r = 0; | |
2082 | else | |
2083 | r = -errno; | |
2084 | ||
2085 | goto finish; | |
2086 | } | |
2087 | ||
2088 | char_array_0(line); | |
2089 | l = strstrip(line); | |
2090 | ||
2091 | if (l[0] == 0) | |
2092 | break; | |
2093 | ||
01d67b43 LP |
2094 | if (startswith(l, "current-job-id=")) { |
2095 | uint32_t id; | |
2096 | ||
2097 | if (safe_atou32(l+15, &id) < 0) | |
2098 | log_debug("Failed to parse current job id value %s", l+15); | |
2099 | else | |
2100 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2101 | |
33c5fae9 LP |
2102 | } else if (startswith(l, "n-installed-jobs=")) { |
2103 | uint32_t n; | |
2104 | ||
2105 | if (safe_atou32(l+17, &n) < 0) | |
2106 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2107 | else | |
2108 | m->n_installed_jobs += n; | |
718db961 | 2109 | |
33c5fae9 LP |
2110 | } else if (startswith(l, "n-failed-jobs=")) { |
2111 | uint32_t n; | |
2112 | ||
2113 | if (safe_atou32(l+14, &n) < 0) | |
2114 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2115 | else | |
2116 | m->n_failed_jobs += n; | |
718db961 | 2117 | |
01d67b43 LP |
2118 | } else if (startswith(l, "taint-usr=")) { |
2119 | int b; | |
2120 | ||
e3dd987c LP |
2121 | b = parse_boolean(l+10); |
2122 | if (b < 0) | |
01d67b43 LP |
2123 | log_debug("Failed to parse taint /usr flag %s", l+10); |
2124 | else | |
2125 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2126 | |
915b3753 LP |
2127 | } else if (startswith(l, "firmware-timestamp=")) |
2128 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2129 | else if (startswith(l, "loader-timestamp=")) | |
2130 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2131 | else if (startswith(l, "kernel-timestamp=")) | |
2132 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2133 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2134 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2135 | else if (startswith(l, "userspace-timestamp=")) |
2136 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2137 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2138 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2139 | else if (startswith(l, "security-start-timestamp=")) |
2140 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2141 | else if (startswith(l, "security-finish-timestamp=")) | |
2142 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2143 | else if (startswith(l, "generators-start-timestamp=")) | |
2144 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2145 | else if (startswith(l, "generators-finish-timestamp=")) | |
2146 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2147 | else if (startswith(l, "units-load-start-timestamp=")) | |
2148 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2149 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2150 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2151 | else if (startswith(l, "env=")) { |
2152 | _cleanup_free_ char *uce = NULL; | |
2153 | char **e; | |
2154 | ||
2155 | uce = cunescape(l+4); | |
2156 | if (!uce) { | |
2157 | r = -ENOMEM; | |
2158 | goto finish; | |
2159 | } | |
2160 | ||
2161 | e = strv_env_set(m->environment, uce); | |
2162 | if (!e) { | |
2163 | r = -ENOMEM; | |
2164 | goto finish; | |
2165 | } | |
2166 | ||
2167 | strv_free(m->environment); | |
2168 | m->environment = e; | |
e3dd987c LP |
2169 | |
2170 | } else if (startswith(l, "kdbus-fd=")) { | |
2171 | int fd; | |
2172 | ||
8bf9fcf4 | 2173 | if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
e3dd987c LP |
2174 | log_debug("Failed to parse kdbus fd: %s", l + 9); |
2175 | else { | |
2176 | if (m->kdbus_fd >= 0) | |
2177 | close_nointr_nofail(m->kdbus_fd); | |
2178 | ||
2179 | m->kdbus_fd = fdset_remove(fds, fd); | |
2180 | } | |
2181 | ||
6fa48533 | 2182 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2183 | log_debug("Unknown serialization item '%s'", l); |
2184 | } | |
2185 | ||
a16e1123 LP |
2186 | for (;;) { |
2187 | Unit *u; | |
2188 | char name[UNIT_NAME_MAX+2]; | |
2189 | ||
2190 | /* Start marker */ | |
2191 | if (!fgets(name, sizeof(name), f)) { | |
2192 | if (feof(f)) | |
10f8e83c LP |
2193 | r = 0; |
2194 | else | |
2195 | r = -errno; | |
a16e1123 | 2196 | |
82c64bf5 | 2197 | goto finish; |
a16e1123 LP |
2198 | } |
2199 | ||
2200 | char_array_0(name); | |
2201 | ||
bd0af849 ZJS |
2202 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2203 | if (r < 0) | |
82c64bf5 | 2204 | goto finish; |
a16e1123 | 2205 | |
01e10de3 LP |
2206 | r = unit_deserialize(u, f, fds); |
2207 | if (r < 0) | |
82c64bf5 | 2208 | goto finish; |
a16e1123 LP |
2209 | } |
2210 | ||
10f8e83c | 2211 | finish: |
145b1f79 | 2212 | if (ferror(f)) |
82c64bf5 | 2213 | r = -EIO; |
a16e1123 | 2214 | |
a7556052 LP |
2215 | assert(m->n_reloading > 0); |
2216 | m->n_reloading --; | |
82c64bf5 LP |
2217 | |
2218 | return r; | |
a16e1123 LP |
2219 | } |
2220 | ||
2221 | int manager_reload(Manager *m) { | |
2222 | int r, q; | |
51d122af ZJS |
2223 | _cleanup_fclose_ FILE *f = NULL; |
2224 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2225 | |
2226 | assert(m); | |
2227 | ||
07719a21 LP |
2228 | r = manager_open_serialization(m, &f); |
2229 | if (r < 0) | |
a16e1123 LP |
2230 | return r; |
2231 | ||
a7556052 | 2232 | m->n_reloading ++; |
718db961 | 2233 | bus_manager_send_reloading(m, true); |
38c52d46 | 2234 | |
07719a21 LP |
2235 | fds = fdset_new(); |
2236 | if (!fds) { | |
a7556052 | 2237 | m->n_reloading --; |
51d122af | 2238 | return -ENOMEM; |
a16e1123 LP |
2239 | } |
2240 | ||
b3680f49 | 2241 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2242 | if (r < 0) { |
a7556052 | 2243 | m->n_reloading --; |
51d122af | 2244 | return r; |
38c52d46 | 2245 | } |
a16e1123 LP |
2246 | |
2247 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2248 | m->n_reloading --; |
51d122af | 2249 | return -errno; |
a16e1123 LP |
2250 | } |
2251 | ||
2252 | /* From here on there is no way back. */ | |
2253 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2254 | manager_undo_generators(m); |
84e3543e | 2255 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2256 | |
07719a21 | 2257 | /* Find new unit paths */ |
5a1e9937 LP |
2258 | manager_run_generators(m); |
2259 | ||
07719a21 LP |
2260 | q = lookup_paths_init( |
2261 | &m->lookup_paths, m->running_as, true, | |
2262 | m->generator_unit_path, | |
2263 | m->generator_unit_path_early, | |
2264 | m->generator_unit_path_late); | |
2265 | if (q < 0) | |
2266 | r = q; | |
2267 | ||
5a1e9937 LP |
2268 | manager_build_unit_path_cache(m); |
2269 | ||
a16e1123 | 2270 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2271 | q = manager_enumerate(m); |
2272 | if (q < 0) | |
a16e1123 LP |
2273 | r = q; |
2274 | ||
2275 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2276 | q = manager_deserialize(m, f, fds); |
2277 | if (q < 0) | |
a16e1123 LP |
2278 | r = q; |
2279 | ||
2280 | fclose(f); | |
2281 | f = NULL; | |
2282 | ||
2283 | /* Third, fire things up! */ | |
07719a21 LP |
2284 | q = manager_coldplug(m); |
2285 | if (q < 0) | |
a16e1123 LP |
2286 | r = q; |
2287 | ||
a7556052 LP |
2288 | assert(m->n_reloading > 0); |
2289 | m->n_reloading--; | |
9f611ad8 | 2290 | |
71445ae7 LP |
2291 | m->send_reloading_done = true; |
2292 | ||
a16e1123 LP |
2293 | return r; |
2294 | } | |
2295 | ||
6084e22e | 2296 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2297 | Unit *u; |
2298 | ||
2299 | assert(m); | |
2300 | ||
2301 | /* Is the initial job still around? */ | |
bacbccb7 | 2302 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2303 | return true; |
2304 | ||
2305 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2306 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2307 | if (u) | |
ac155bb8 | 2308 | return !!u->job; |
9e58ff9c LP |
2309 | |
2310 | return false; | |
2311 | } | |
2312 | ||
c17ec25e MS |
2313 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2314 | assert(m); | |
2315 | ||
2316 | return m->n_reloading != 0; | |
2317 | } | |
2318 | ||
fdf20a31 | 2319 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2320 | Unit *u; |
2321 | Iterator i; | |
2322 | ||
2323 | assert(m); | |
2324 | ||
2325 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2326 | unit_reset_failed(u); |
5632e374 LP |
2327 | } |
2328 | ||
31afa0a4 | 2329 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2330 | Unit *u; |
2331 | ||
2332 | assert(m); | |
2333 | assert(name); | |
2334 | ||
2335 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2336 | u = manager_get_unit(m, name); |
2337 | if (!u) | |
8f6df3fa LP |
2338 | return true; |
2339 | ||
31afa0a4 | 2340 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2341 | } |
2342 | ||
b0c918b9 | 2343 | void manager_check_finished(Manager *m) { |
7ceba241 | 2344 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2345 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2346 | |
2347 | assert(m); | |
2348 | ||
a0b64226 | 2349 | if (m->n_running_jobs == 0) |
718db961 | 2350 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2351 | |
828db5d8 KS |
2352 | if (hashmap_size(m->jobs) > 0) { |
2353 | if (m->jobs_in_progress_event_source) | |
2354 | sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC); | |
b0c918b9 | 2355 | return; |
5b176ee0 | 2356 | } |
b0c918b9 | 2357 | |
f2b68789 | 2358 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2359 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2360 | manager_close_idle_pipe(m); | |
f2b68789 | 2361 | |
af6da548 LP |
2362 | /* Turn off confirm spawn now */ |
2363 | m->confirm_spawn = false; | |
2364 | ||
f2b68789 | 2365 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2366 | return; |
2367 | ||
2368 | dual_timestamp_get(&m->finish_timestamp); | |
2369 | ||
67445f4e | 2370 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2371 | |
915b3753 LP |
2372 | /* Note that m->kernel_usec.monotonic is always at 0, |
2373 | * and m->firmware_usec.monotonic and | |
2374 | * m->loader_usec.monotonic should be considered | |
2375 | * negative values. */ | |
2376 | ||
7ceba241 LP |
2377 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2378 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2379 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2380 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2381 | |
e9ddabc2 | 2382 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2383 | |
915b3753 LP |
2384 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2385 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2386 | |
81270860 LP |
2387 | if (!log_on_console()) |
2388 | log_struct(LOG_INFO, | |
1ca6783f | 2389 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2390 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2391 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2392 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2393 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2394 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2395 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2396 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2397 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2398 | NULL); |
18fa6b27 | 2399 | } else { |
915b3753 | 2400 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2401 | initrd_usec = 0; |
2402 | ||
81270860 LP |
2403 | if (!log_on_console()) |
2404 | log_struct(LOG_INFO, | |
1ca6783f | 2405 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2406 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2407 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2408 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2409 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2410 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2411 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2412 | NULL); |
18fa6b27 LP |
2413 | } |
2414 | } else { | |
915b3753 LP |
2415 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2416 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2417 | |
81270860 LP |
2418 | if (!log_on_console()) |
2419 | log_struct(LOG_INFO, | |
1ca6783f | 2420 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2421 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2422 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2423 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2424 | NULL); |
18fa6b27 | 2425 | } |
b0c918b9 | 2426 | |
718db961 | 2427 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2428 | |
2429 | sd_notifyf(false, | |
2430 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2431 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2432 | } |
2433 | ||
07719a21 LP |
2434 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2435 | char *p; | |
2436 | int r; | |
2437 | ||
2438 | assert(m); | |
2439 | assert(generator); | |
2440 | assert(name); | |
2441 | ||
2442 | if (*generator) | |
2443 | return 0; | |
2444 | ||
67445f4e | 2445 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2446 | |
2447 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2448 | if (!p) |
2449 | return log_oom(); | |
07719a21 | 2450 | |
d2e54fae | 2451 | r = mkdir_p_label(p, 0755); |
07719a21 | 2452 | if (r < 0) { |
7ad94c71 ZJS |
2453 | log_error("Failed to create generator directory %s: %s", |
2454 | p, strerror(-r)); | |
07719a21 LP |
2455 | free(p); |
2456 | return r; | |
2457 | } | |
2458 | } else { | |
b7def684 | 2459 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2460 | if (!p) |
2461 | return log_oom(); | |
07719a21 LP |
2462 | |
2463 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2464 | log_error("Failed to create generator directory %s: %m", |
2465 | p); | |
34bf0281 | 2466 | free(p); |
07719a21 LP |
2467 | return -errno; |
2468 | } | |
2469 | } | |
2470 | ||
2471 | *generator = p; | |
2472 | return 0; | |
2473 | } | |
2474 | ||
2475 | static void trim_generator_dir(Manager *m, char **generator) { | |
2476 | assert(m); | |
2477 | assert(generator); | |
2478 | ||
2479 | if (!*generator) | |
2480 | return; | |
2481 | ||
2482 | if (rmdir(*generator) >= 0) { | |
2483 | free(*generator); | |
2484 | *generator = NULL; | |
2485 | } | |
2486 | ||
2487 | return; | |
2488 | } | |
2489 | ||
5a1e9937 | 2490 | void manager_run_generators(Manager *m) { |
718db961 | 2491 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2492 | const char *generator_path; |
07719a21 | 2493 | const char *argv[5]; |
07719a21 | 2494 | int r; |
5a1e9937 LP |
2495 | |
2496 | assert(m); | |
2497 | ||
67445f4e | 2498 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2499 | d = opendir(generator_path); |
2500 | if (!d) { | |
5a1e9937 LP |
2501 | if (errno == ENOENT) |
2502 | return; | |
2503 | ||
7ad94c71 ZJS |
2504 | log_error("Failed to enumerate generator directory %s: %m", |
2505 | generator_path); | |
5a1e9937 LP |
2506 | return; |
2507 | } | |
2508 | ||
07719a21 LP |
2509 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2510 | if (r < 0) | |
2511 | goto finish; | |
f1d19aa4 | 2512 | |
07719a21 LP |
2513 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2514 | if (r < 0) | |
2515 | goto finish; | |
5a1e9937 | 2516 | |
07719a21 LP |
2517 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2518 | if (r < 0) | |
2519 | goto finish; | |
5a1e9937 | 2520 | |
83cc030f LP |
2521 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2522 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2523 | argv[2] = m->generator_unit_path_early; |
2524 | argv[3] = m->generator_unit_path_late; | |
2525 | argv[4] = NULL; | |
5a1e9937 | 2526 | |
718db961 | 2527 | RUN_WITH_UMASK(0022) |
5c0d398d | 2528 | execute_directory(generator_path, d, (char**) argv); |
5a1e9937 | 2529 | |
718db961 | 2530 | finish: |
07719a21 LP |
2531 | trim_generator_dir(m, &m->generator_unit_path); |
2532 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2533 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2534 | } |
2535 | ||
07719a21 | 2536 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2537 | assert(m); |
07719a21 | 2538 | assert(generator); |
5a1e9937 | 2539 | |
07719a21 | 2540 | if (!*generator) |
5a1e9937 LP |
2541 | return; |
2542 | ||
07719a21 LP |
2543 | strv_remove(m->lookup_paths.unit_path, *generator); |
2544 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2545 | |
07719a21 LP |
2546 | free(*generator); |
2547 | *generator = NULL; | |
2548 | } | |
2549 | ||
2550 | void manager_undo_generators(Manager *m) { | |
2551 | assert(m); | |
2552 | ||
2553 | remove_generator_dir(m, &m->generator_unit_path); | |
2554 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2555 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2556 | } |
2557 | ||
718db961 LP |
2558 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2559 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2560 | assert(m); |
bcd8e6d1 | 2561 | |
718db961 | 2562 | l = m->environment; |
bcd8e6d1 | 2563 | |
718db961 LP |
2564 | if (!strv_isempty(minus)) { |
2565 | a = strv_env_delete(l, 1, minus); | |
2566 | if (!a) | |
2567 | return -ENOMEM; | |
2568 | ||
2569 | l = a; | |
2570 | } | |
2571 | ||
2572 | if (!strv_isempty(plus)) { | |
2573 | b = strv_env_merge(2, l, plus); | |
2574 | if (!b) | |
2575 | return -ENOMEM; | |
bcd8e6d1 | 2576 | |
718db961 LP |
2577 | l = b; |
2578 | } | |
2579 | ||
2580 | if (m->environment != l) | |
2581 | strv_free(m->environment); | |
2582 | if (a != l) | |
2583 | strv_free(a); | |
2584 | if (b != l) | |
2585 | strv_free(b); | |
2586 | ||
9d5a3757 | 2587 | m->environment = strv_sort(l); |
97d0e5f8 UTL |
2588 | return 0; |
2589 | } | |
2590 | ||
c93ff2e9 FC |
2591 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2592 | int i; | |
2593 | ||
2594 | assert(m); | |
2595 | ||
2596 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2597 | if (!default_rlimit[i]) |
2598 | continue; | |
c93ff2e9 | 2599 | |
07719a21 LP |
2600 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2601 | if (!m->rlimit[i]) | |
2602 | return -ENOMEM; | |
c93ff2e9 FC |
2603 | } |
2604 | ||
2605 | return 0; | |
2606 | } | |
2607 | ||
4cfa2c99 | 2608 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2609 | Unit *u; |
2610 | ||
2611 | assert(m); | |
2612 | ||
67445f4e | 2613 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2614 | return; |
2615 | ||
731a676c LP |
2616 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2617 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2618 | log_close_journal(); |
731a676c | 2619 | return; |
f1dd0c3f LP |
2620 | } |
2621 | ||
731a676c LP |
2622 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2623 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2624 | log_close_journal(); |
731a676c LP |
2625 | return; |
2626 | } | |
f1dd0c3f | 2627 | |
731a676c LP |
2628 | /* Hmm, OK, so the socket is fully up and the service is up |
2629 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2630 | log_open(); |
2631 | } | |
2632 | ||
27d340c7 LP |
2633 | void manager_set_show_status(Manager *m, bool b) { |
2634 | assert(m); | |
2635 | ||
67445f4e | 2636 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2637 | return; |
2638 | ||
2639 | m->show_status = b; | |
2640 | ||
2641 | if (b) | |
2642 | touch("/run/systemd/show-status"); | |
2643 | else | |
2644 | unlink("/run/systemd/show-status"); | |
2645 | } | |
2646 | ||
6084e22e | 2647 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2648 | assert(m); |
2649 | ||
67445f4e | 2650 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2651 | return false; |
2652 | ||
31a7eb86 ZJS |
2653 | if (m->no_console_output) |
2654 | return false; | |
2655 | ||
27d340c7 LP |
2656 | if (m->show_status) |
2657 | return true; | |
2658 | ||
2659 | /* If Plymouth is running make sure we show the status, so | |
2660 | * that there's something nice to see when people press Esc */ | |
2661 | ||
2662 | return plymouth_running(); | |
2663 | } | |
68b29a9f | 2664 | |
984a2be4 | 2665 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2666 | va_list ap; |
2667 | ||
2668 | if (!manager_get_show_status(m)) | |
2669 | return; | |
2670 | ||
03b717a3 MS |
2671 | /* XXX We should totally drop the check for ephemeral here |
2672 | * and thus effectively make 'Type=idle' pointless. */ | |
2673 | if (ephemeral && m->n_on_console > 0) | |
2674 | return; | |
2675 | ||
25cee550 MS |
2676 | if (!manager_is_booting_or_shutting_down(m)) |
2677 | return; | |
2678 | ||
2679 | va_start(ap, format); | |
984a2be4 | 2680 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2681 | va_end(ap); |
2682 | } | |
2683 | ||
a57f7e2c LP |
2684 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2685 | _cleanup_free_ char *p = NULL; | |
2686 | Unit *found; | |
2687 | ||
2688 | assert(m); | |
2689 | assert(path); | |
2690 | assert(suffix); | |
2691 | assert(_found); | |
2692 | ||
2693 | p = unit_name_from_path(path, suffix); | |
2694 | if (!p) | |
2695 | return -ENOMEM; | |
2696 | ||
2697 | found = manager_get_unit(m, p); | |
2698 | if (!found) { | |
2699 | *_found = NULL; | |
2700 | return 0; | |
2701 | } | |
2702 | ||
2703 | *_found = found; | |
2704 | return 1; | |
2705 | } | |
2706 | ||
2707 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2708 | char p[strlen(path)+1]; | |
2709 | ||
2710 | assert(m); | |
2711 | assert(path); | |
2712 | ||
2713 | strcpy(p, path); | |
2714 | path_kill_slashes(p); | |
2715 | ||
2716 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2717 | } |