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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
87d1515d | 24 | #include <string.h> |
9152c765 LP |
25 | #include <sys/epoll.h> |
26 | #include <signal.h> | |
27 | #include <sys/signalfd.h> | |
28 | #include <sys/wait.h> | |
29 | #include <unistd.h> | |
30 | #include <sys/poll.h> | |
e1414003 LP |
31 | #include <sys/reboot.h> |
32 | #include <sys/ioctl.h> | |
33 | #include <linux/kd.h> | |
80876c20 LP |
34 | #include <termios.h> |
35 | #include <fcntl.h> | |
a16e1123 LP |
36 | #include <sys/types.h> |
37 | #include <sys/stat.h> | |
fe51822e | 38 | #include <dirent.h> |
8742514c | 39 | #include <sys/timerfd.h> |
830f6caa LP |
40 | |
41 | #ifdef HAVE_AUDIT | |
4927fcae | 42 | #include <libaudit.h> |
830f6caa | 43 | #endif |
60918275 | 44 | |
718db961 LP |
45 | #include "sd-daemon.h" |
46 | #include "sd-id128.h" | |
47 | #include "sd-messages.h" | |
81527be1 | 48 | |
60918275 | 49 | #include "manager.h" |
75778e21 | 50 | #include "transaction.h" |
60918275 LP |
51 | #include "hashmap.h" |
52 | #include "macro.h" | |
53 | #include "strv.h" | |
16354eff | 54 | #include "log.h" |
2a987ee8 | 55 | #include "util.h" |
49e942b2 | 56 | #include "mkdir.h" |
ea430986 | 57 | #include "ratelimit.h" |
e21fea24 | 58 | #include "locale-setup.h" |
8e274523 | 59 | #include "mount-setup.h" |
9e2f7c11 | 60 | #include "unit-name.h" |
1137a57c | 61 | #include "missing.h" |
84e3543e | 62 | #include "path-lookup.h" |
514f4ef5 | 63 | #include "special.h" |
d06dacd0 | 64 | #include "exit-status.h" |
5dc4c17f | 65 | #include "virt.h" |
e96d6be7 | 66 | #include "watchdog.h" |
b59e2465 | 67 | #include "cgroup-util.h" |
9eb977db | 68 | #include "path-util.h" |
c1165f82 | 69 | #include "audit-fd.h" |
c51d84dc | 70 | #include "boot-timestamps.h" |
8b55b8c4 | 71 | #include "env-util.h" |
718db961 LP |
72 | #include "bus-errors.h" |
73 | #include "bus-error.h" | |
74 | #include "bus-util.h" | |
75 | #include "dbus.h" | |
76 | #include "dbus-unit.h" | |
77 | #include "dbus-job.h" | |
78 | #include "dbus-manager.h" | |
60918275 | 79 | |
701cc384 | 80 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ |
94b6dfa2 | 81 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 82 | |
03b717a3 MS |
83 | /* Initial delay and the interval for printing status messages about running jobs */ |
84 | #define JOBS_IN_PROGRESS_WAIT_SEC 5 | |
85 | #define JOBS_IN_PROGRESS_PERIOD_SEC 1 | |
86 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 | |
87 | ||
8c47c732 | 88 | /* Where clients shall send notification messages to */ |
29252e9e | 89 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 | 90 | |
c3e31c7b ZJS |
91 | #define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) |
92 | ||
718db961 LP |
93 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
94 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
95 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
96 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
97 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); | |
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) | |
309 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
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 | |
67445f4e | 370 | if (m->running_as == SYSTEMD_SYSTEM) |
80876c20 | 371 | return enable_special_signals(m); |
e1414003 | 372 | |
ce578209 LP |
373 | return 0; |
374 | } | |
375 | ||
e21fea24 | 376 | static int manager_default_environment(Manager *m) { |
71ecc858 LP |
377 | assert(m); |
378 | ||
e21fea24 KS |
379 | if (m->running_as == SYSTEMD_SYSTEM) { |
380 | /* The system manager always starts with a clean | |
381 | * environment for its children. It does not import | |
382 | * the kernel or the parents exported variables. | |
383 | * | |
384 | * The initial passed environ is untouched to keep | |
385 | * /proc/self/environ valid; it is used for tagging | |
386 | * the init process inside containers. */ | |
43638332 ZJS |
387 | m->environment = strv_new("PATH=" DEFAULT_PATH, |
388 | NULL); | |
e21fea24 KS |
389 | |
390 | /* Import locale variables LC_*= from configuration */ | |
391 | locale_setup(&m->environment); | |
392 | } else | |
393 | /* The user manager passes its own environment | |
394 | * along to its children. */ | |
395 | m->environment = strv_copy(environ); | |
71ecc858 | 396 | |
e21fea24 KS |
397 | if (!m->environment) |
398 | return -ENOMEM; | |
8b55b8c4 | 399 | |
9d5a3757 LP |
400 | strv_sort(m->environment); |
401 | ||
e21fea24 | 402 | return 0; |
71ecc858 LP |
403 | } |
404 | ||
6fa48533 | 405 | int manager_new(SystemdRunningAs running_as, bool reexecuting, Manager **_m) { |
ce578209 | 406 | Manager *m; |
8e274523 | 407 | int r = -ENOMEM; |
a0a6408e | 408 | bool try_bus_connect = false; |
8e274523 LP |
409 | |
410 | assert(_m); | |
a5dab5ce | 411 | assert(running_as >= 0); |
67445f4e | 412 | assert(running_as < _SYSTEMD_RUNNING_AS_MAX); |
ce578209 | 413 | |
915b3753 LP |
414 | m = new0(Manager, 1); |
415 | if (!m) | |
8e274523 | 416 | return -ENOMEM; |
60918275 | 417 | |
4f8d551f ZC |
418 | #ifdef ENABLE_EFI |
419 | if (detect_container(NULL) <= 0) | |
c51d84dc | 420 | boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); |
4f8d551f ZC |
421 | #endif |
422 | ||
a5dab5ce | 423 | m->running_as = running_as; |
a16e1123 | 424 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
80876c20 | 425 | |
718db961 | 426 | m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1; |
8742514c | 427 | |
718db961 | 428 | m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = -1; |
ea430986 | 429 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 430 | |
e21fea24 KS |
431 | r = manager_default_environment(m); |
432 | if (r < 0) | |
1137a57c LP |
433 | goto fail; |
434 | ||
718db961 LP |
435 | r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func); |
436 | if (r < 0) | |
60918275 LP |
437 | goto fail; |
438 | ||
718db961 LP |
439 | r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func); |
440 | if (r < 0) | |
60918275 LP |
441 | goto fail; |
442 | ||
718db961 LP |
443 | r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); |
444 | if (r < 0) | |
9152c765 LP |
445 | goto fail; |
446 | ||
718db961 LP |
447 | r = hashmap_ensure_allocated(&m->watch_pids, trivial_hash_func, trivial_compare_func); |
448 | if (r < 0) | |
8e274523 LP |
449 | goto fail; |
450 | ||
718db961 LP |
451 | r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); |
452 | if (r < 0) | |
05e343b7 LP |
453 | goto fail; |
454 | ||
718db961 LP |
455 | r = sd_event_default(&m->event); |
456 | if (r < 0) | |
8742514c LP |
457 | goto fail; |
458 | ||
459 | r = manager_setup_signals(m); | |
460 | if (r < 0) | |
9152c765 LP |
461 | goto fail; |
462 | ||
8742514c LP |
463 | r = manager_setup_cgroup(m); |
464 | if (r < 0) | |
8e274523 LP |
465 | goto fail; |
466 | ||
8742514c LP |
467 | r = manager_setup_notify(m); |
468 | if (r < 0) | |
9152c765 LP |
469 | goto fail; |
470 | ||
8742514c LP |
471 | r = manager_setup_time_change(m); |
472 | if (r < 0) | |
8c47c732 LP |
473 | goto fail; |
474 | ||
a0a6408e MM |
475 | if (running_as == SYSTEMD_SYSTEM) |
476 | try_bus_connect = reexecuting; | |
477 | else if (getenv("DBUS_SESSION_BUS_ADDRESS")) | |
478 | try_bus_connect = true; | |
479 | else | |
ed002560 | 480 | log_debug("Skipping DBus session bus connection attempt - no DBUS_SESSION_BUS_ADDRESS set..."); |
ea430986 | 481 | |
a0a6408e MM |
482 | /* Try to connect to the busses, if possible. */ |
483 | r = bus_init(m, try_bus_connect); | |
484 | if (r < 0) | |
485 | goto fail; | |
486 | ||
72bc8d00 LP |
487 | m->taint_usr = dir_is_empty("/usr") > 0; |
488 | ||
8e274523 LP |
489 | *_m = m; |
490 | return 0; | |
60918275 LP |
491 | |
492 | fail: | |
493 | manager_free(m); | |
8e274523 | 494 | return r; |
60918275 LP |
495 | } |
496 | ||
23a177ef | 497 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 498 | Unit *u; |
23a177ef LP |
499 | unsigned n = 0; |
500 | ||
501 | assert(m); | |
502 | ||
595ed347 MS |
503 | while ((u = m->cleanup_queue)) { |
504 | assert(u->in_cleanup_queue); | |
23a177ef | 505 | |
595ed347 | 506 | unit_free(u); |
23a177ef LP |
507 | n++; |
508 | } | |
509 | ||
510 | return n; | |
511 | } | |
512 | ||
eced69b3 | 513 | enum { |
35b8ca3a | 514 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
515 | GC_OFFSET_UNSURE, /* No clue */ |
516 | GC_OFFSET_GOOD, /* We still need this unit */ | |
517 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
518 | _GC_OFFSET_MAX | |
519 | }; | |
520 | ||
521 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
522 | Iterator i; |
523 | Unit *other; | |
eced69b3 | 524 | bool is_bad; |
701cc384 LP |
525 | |
526 | assert(u); | |
527 | ||
ac155bb8 MS |
528 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
529 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
530 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
531 | return; |
532 | ||
ac155bb8 | 533 | if (u->in_cleanup_queue) |
701cc384 LP |
534 | goto bad; |
535 | ||
536 | if (unit_check_gc(u)) | |
537 | goto good; | |
538 | ||
ac155bb8 | 539 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
540 | |
541 | is_bad = true; | |
542 | ||
ac155bb8 | 543 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
544 | unit_gc_sweep(other, gc_marker); |
545 | ||
ac155bb8 | 546 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 547 | goto good; |
eced69b3 | 548 | |
ac155bb8 | 549 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 550 | is_bad = false; |
701cc384 LP |
551 | } |
552 | ||
eced69b3 LP |
553 | if (is_bad) |
554 | goto bad; | |
555 | ||
556 | /* We were unable to find anything out about this entry, so | |
557 | * let's investigate it later */ | |
ac155bb8 | 558 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
559 | unit_add_to_gc_queue(u); |
560 | return; | |
561 | ||
701cc384 | 562 | bad: |
eced69b3 LP |
563 | /* We definitely know that this one is not useful anymore, so |
564 | * let's mark it for deletion */ | |
ac155bb8 | 565 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 566 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
567 | return; |
568 | ||
569 | good: | |
ac155bb8 | 570 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
571 | } |
572 | ||
573 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 574 | Unit *u; |
701cc384 | 575 | unsigned n = 0; |
eced69b3 | 576 | unsigned gc_marker; |
701cc384 LP |
577 | |
578 | assert(m); | |
579 | ||
cf1265e1 | 580 | /* log_debug("Running GC..."); */ |
701cc384 | 581 | |
eced69b3 LP |
582 | m->gc_marker += _GC_OFFSET_MAX; |
583 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 584 | m->gc_marker = 1; |
701cc384 | 585 | |
eced69b3 LP |
586 | gc_marker = m->gc_marker; |
587 | ||
595ed347 MS |
588 | while ((u = m->gc_queue)) { |
589 | assert(u->in_gc_queue); | |
701cc384 | 590 | |
595ed347 | 591 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 592 | |
71fda00f | 593 | LIST_REMOVE(gc_queue, m->gc_queue, u); |
595ed347 | 594 | u->in_gc_queue = false; |
701cc384 LP |
595 | |
596 | n++; | |
597 | ||
595ed347 MS |
598 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
599 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
66870f90 | 600 | log_debug_unit(u->id, "Collecting %s", u->id); |
595ed347 MS |
601 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
602 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
603 | } |
604 | } | |
605 | ||
606 | m->n_in_gc_queue = 0; | |
701cc384 LP |
607 | |
608 | return n; | |
609 | } | |
610 | ||
a16e1123 | 611 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 612 | Unit *u; |
60918275 LP |
613 | |
614 | assert(m); | |
615 | ||
87f0e418 LP |
616 | while ((u = hashmap_first(m->units))) |
617 | unit_free(u); | |
964e0949 LP |
618 | |
619 | manager_dispatch_cleanup_queue(m); | |
620 | ||
621 | assert(!m->load_queue); | |
622 | assert(!m->run_queue); | |
623 | assert(!m->dbus_unit_queue); | |
624 | assert(!m->dbus_job_queue); | |
625 | assert(!m->cleanup_queue); | |
626 | assert(!m->gc_queue); | |
627 | ||
964e0949 LP |
628 | assert(hashmap_isempty(m->jobs)); |
629 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
630 | |
631 | m->n_on_console = 0; | |
632 | m->n_running_jobs = 0; | |
a16e1123 LP |
633 | } |
634 | ||
635 | void manager_free(Manager *m) { | |
636 | UnitType c; | |
c93ff2e9 | 637 | int i; |
87f0e418 | 638 | |
a16e1123 LP |
639 | assert(m); |
640 | ||
641 | manager_clear_jobs_and_units(m); | |
23a177ef | 642 | |
7824bbeb LP |
643 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
644 | if (unit_vtable[c]->shutdown) | |
645 | unit_vtable[c]->shutdown(m); | |
646 | ||
a16e1123 LP |
647 | /* If we reexecute ourselves, we keep the root cgroup |
648 | * around */ | |
c6c18be3 | 649 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 650 | |
5a1e9937 LP |
651 | manager_undo_generators(m); |
652 | ||
5e8d1c9a | 653 | bus_done(m); |
ea430986 | 654 | |
87f0e418 | 655 | hashmap_free(m->units); |
60918275 | 656 | hashmap_free(m->jobs); |
9152c765 | 657 | hashmap_free(m->watch_pids); |
05e343b7 | 658 | hashmap_free(m->watch_bus); |
9152c765 | 659 | |
718db961 LP |
660 | sd_event_source_unref(m->signal_event_source); |
661 | sd_event_source_unref(m->notify_event_source); | |
662 | sd_event_source_unref(m->time_change_event_source); | |
663 | sd_event_source_unref(m->jobs_in_progress_event_source); | |
664 | sd_event_source_unref(m->idle_pipe_event_source); | |
665 | ||
666 | if (m->signal_fd >= 0) | |
667 | close_nointr_nofail(m->signal_fd); | |
668 | if (m->notify_fd >= 0) | |
669 | close_nointr_nofail(m->notify_fd); | |
670 | if (m->time_change_fd >= 0) | |
671 | close_nointr_nofail(m->time_change_fd); | |
672 | ||
673 | manager_close_idle_pipe(m); | |
674 | ||
675 | sd_event_unref(m->event); | |
60918275 | 676 | |
c952c6ec LP |
677 | free(m->notify_socket); |
678 | ||
84e3543e | 679 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 680 | strv_free(m->environment); |
036643a2 | 681 | |
4ad49000 | 682 | hashmap_free(m->cgroup_unit); |
c6c18be3 | 683 | set_free_free(m->unit_path_cache); |
33be102a | 684 | |
664f88a7 LP |
685 | free(m->switch_root); |
686 | free(m->switch_root_init); | |
687 | ||
c93ff2e9 FC |
688 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
689 | free(m->rlimit[i]); | |
690 | ||
a57f7e2c LP |
691 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
692 | hashmap_free(m->units_requiring_mounts_for); | |
693 | ||
60918275 LP |
694 | free(m); |
695 | } | |
696 | ||
a16e1123 LP |
697 | int manager_enumerate(Manager *m) { |
698 | int r = 0, q; | |
f50e0a01 | 699 | UnitType c; |
f50e0a01 LP |
700 | |
701 | assert(m); | |
702 | ||
a16e1123 LP |
703 | /* Let's ask every type to load all units from disk/kernel |
704 | * that it might know */ | |
f50e0a01 | 705 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
a57f7e2c LP |
706 | if (unit_vtable[c]->enumerate) { |
707 | q = unit_vtable[c]->enumerate(m); | |
708 | if (q < 0) | |
a16e1123 | 709 | r = q; |
a57f7e2c | 710 | } |
f50e0a01 LP |
711 | |
712 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
713 | return r; |
714 | } | |
715 | ||
9588bc32 | 716 | static int manager_coldplug(Manager *m) { |
a16e1123 LP |
717 | int r = 0, q; |
718 | Iterator i; | |
719 | Unit *u; | |
720 | char *k; | |
721 | ||
722 | assert(m); | |
f50e0a01 LP |
723 | |
724 | /* Then, let's set up their initial state. */ | |
725 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
726 | ||
727 | /* ignore aliases */ | |
ac155bb8 | 728 | if (u->id != k) |
f50e0a01 LP |
729 | continue; |
730 | ||
cca098b0 LP |
731 | if ((q = unit_coldplug(u)) < 0) |
732 | r = q; | |
f50e0a01 LP |
733 | } |
734 | ||
a16e1123 LP |
735 | return r; |
736 | } | |
737 | ||
fe51822e LP |
738 | static void manager_build_unit_path_cache(Manager *m) { |
739 | char **i; | |
7fd1b19b | 740 | _cleanup_free_ DIR *d = NULL; |
fe51822e LP |
741 | int r; |
742 | ||
743 | assert(m); | |
744 | ||
745 | set_free_free(m->unit_path_cache); | |
746 | ||
874310b7 ZJS |
747 | m->unit_path_cache = set_new(string_hash_func, string_compare_func); |
748 | if (!m->unit_path_cache) { | |
fe51822e LP |
749 | log_error("Failed to allocate unit path cache."); |
750 | return; | |
751 | } | |
752 | ||
753 | /* This simply builds a list of files we know exist, so that | |
754 | * we don't always have to go to disk */ | |
755 | ||
756 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
757 | struct dirent *de; | |
758 | ||
bd0af849 ZJS |
759 | d = opendir(*i); |
760 | if (!d) { | |
874310b7 ZJS |
761 | if (errno != ENOENT) |
762 | log_error("Failed to open directory %s: %m", *i); | |
fe51822e LP |
763 | continue; |
764 | } | |
765 | ||
766 | while ((de = readdir(d))) { | |
767 | char *p; | |
768 | ||
769 | if (ignore_file(de->d_name)) | |
770 | continue; | |
771 | ||
b7def684 | 772 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 773 | if (!p) { |
fe51822e LP |
774 | r = -ENOMEM; |
775 | goto fail; | |
776 | } | |
777 | ||
ef42202a ZJS |
778 | r = set_consume(m->unit_path_cache, p); |
779 | if (r < 0) | |
fe51822e | 780 | goto fail; |
fe51822e LP |
781 | } |
782 | ||
783 | closedir(d); | |
784 | d = NULL; | |
785 | } | |
786 | ||
787 | return; | |
788 | ||
789 | fail: | |
790 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
791 | ||
792 | set_free_free(m->unit_path_cache); | |
793 | m->unit_path_cache = NULL; | |
fe51822e LP |
794 | } |
795 | ||
9588bc32 LP |
796 | |
797 | static int manager_distribute_fds(Manager *m, FDSet *fds) { | |
798 | Unit *u; | |
799 | Iterator i; | |
800 | int r; | |
801 | ||
802 | assert(m); | |
803 | ||
804 | HASHMAP_FOREACH(u, m->units, i) { | |
805 | ||
806 | if (fdset_size(fds) <= 0) | |
807 | break; | |
808 | ||
809 | if (UNIT_VTABLE(u)->distribute_fds) { | |
810 | r = UNIT_VTABLE(u)->distribute_fds(u, fds); | |
811 | if (r < 0) | |
812 | return r; | |
813 | } | |
814 | } | |
815 | ||
816 | return 0; | |
817 | } | |
818 | ||
a16e1123 LP |
819 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
820 | int r, q; | |
821 | ||
822 | assert(m); | |
823 | ||
518d10e9 | 824 | dual_timestamp_get(&m->generators_start_timestamp); |
5a1e9937 | 825 | manager_run_generators(m); |
518d10e9 | 826 | dual_timestamp_get(&m->generators_finish_timestamp); |
5a1e9937 | 827 | |
07719a21 LP |
828 | r = lookup_paths_init( |
829 | &m->lookup_paths, m->running_as, true, | |
830 | m->generator_unit_path, | |
831 | m->generator_unit_path_early, | |
832 | m->generator_unit_path_late); | |
833 | if (r < 0) | |
834 | return r; | |
835 | ||
fe51822e LP |
836 | manager_build_unit_path_cache(m); |
837 | ||
9f611ad8 LP |
838 | /* If we will deserialize make sure that during enumeration |
839 | * this is already known, so we increase the counter here | |
840 | * already */ | |
841 | if (serialization) | |
a7556052 | 842 | m->n_reloading ++; |
9f611ad8 | 843 | |
a16e1123 | 844 | /* First, enumerate what we can from all config files */ |
718db961 | 845 | dual_timestamp_get(&m->units_load_start_timestamp); |
a16e1123 | 846 | r = manager_enumerate(m); |
718db961 | 847 | dual_timestamp_get(&m->units_load_finish_timestamp); |
a16e1123 LP |
848 | |
849 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
850 | if (serialization) { |
851 | q = manager_deserialize(m, serialization, fds); | |
852 | if (q < 0) | |
a16e1123 | 853 | r = q; |
07719a21 | 854 | } |
a16e1123 | 855 | |
01e10de3 LP |
856 | /* Any fds left? Find some unit which wants them. This is |
857 | * useful to allow container managers to pass some file | |
858 | * descriptors to us pre-initialized. This enables | |
859 | * socket-based activation of entire containers. */ | |
860 | if (fdset_size(fds) > 0) { | |
861 | q = manager_distribute_fds(m, fds); | |
862 | if (q < 0) | |
863 | r = q; | |
864 | } | |
865 | ||
a16e1123 | 866 | /* Third, fire things up! */ |
07719a21 LP |
867 | q = manager_coldplug(m); |
868 | if (q < 0) | |
a16e1123 LP |
869 | r = q; |
870 | ||
9f611ad8 | 871 | if (serialization) { |
a7556052 LP |
872 | assert(m->n_reloading > 0); |
873 | m->n_reloading --; | |
71445ae7 LP |
874 | |
875 | /* Let's wait for the UnitNew/JobNew messages being | |
876 | * sent, before we notify that the reload is | |
877 | * finished */ | |
878 | m->send_reloading_done = true; | |
9f611ad8 LP |
879 | } |
880 | ||
a16e1123 | 881 | return r; |
f50e0a01 LP |
882 | } |
883 | ||
718db961 | 884 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) { |
e5b5ae50 | 885 | int r; |
7527cb52 | 886 | Transaction *tr; |
e5b5ae50 LP |
887 | |
888 | assert(m); | |
889 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 890 | assert(unit); |
e5b5ae50 | 891 | assert(mode < _JOB_MODE_MAX); |
60918275 | 892 | |
398ef8ba | 893 | if (mode == JOB_ISOLATE && type != JOB_START) { |
718db961 | 894 | sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 895 | return -EINVAL; |
398ef8ba | 896 | } |
c497c7a9 | 897 | |
ac155bb8 | 898 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
718db961 | 899 | sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 LP |
900 | return -EPERM; |
901 | } | |
902 | ||
66870f90 ZJS |
903 | log_debug_unit(unit->id, |
904 | "Trying to enqueue job %s/%s/%s", unit->id, | |
905 | job_type_to_string(type), job_mode_to_string(mode)); | |
9f04bd52 | 906 | |
e0209d83 MS |
907 | job_type_collapse(&type, unit); |
908 | ||
23ade460 | 909 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
910 | if (!tr) |
911 | return -ENOMEM; | |
11dd41ce | 912 | |
7527cb52 MS |
913 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
914 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 915 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
916 | if (r < 0) |
917 | goto tr_abort; | |
c497c7a9 | 918 | |
7527cb52 MS |
919 | if (mode == JOB_ISOLATE) { |
920 | r = transaction_add_isolate_jobs(tr, m); | |
921 | if (r < 0) | |
922 | goto tr_abort; | |
923 | } | |
924 | ||
925 | r = transaction_activate(tr, m, mode, e); | |
926 | if (r < 0) | |
927 | goto tr_abort; | |
e5b5ae50 | 928 | |
66870f90 ZJS |
929 | log_debug_unit(unit->id, |
930 | "Enqueued job %s/%s as %u", unit->id, | |
931 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 932 | |
e5b5ae50 | 933 | if (_ret) |
b94fbd30 | 934 | *_ret = tr->anchor_job; |
60918275 | 935 | |
7527cb52 | 936 | transaction_free(tr); |
e5b5ae50 | 937 | return 0; |
7527cb52 MS |
938 | |
939 | tr_abort: | |
940 | transaction_abort(tr); | |
941 | transaction_free(tr); | |
942 | return r; | |
e5b5ae50 | 943 | } |
60918275 | 944 | |
718db961 | 945 | 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 |
946 | Unit *unit; |
947 | int r; | |
948 | ||
949 | assert(m); | |
950 | assert(type < _JOB_TYPE_MAX); | |
951 | assert(name); | |
952 | assert(mode < _JOB_MODE_MAX); | |
953 | ||
c3090674 LP |
954 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
955 | if (r < 0) | |
28247076 LP |
956 | return r; |
957 | ||
398ef8ba | 958 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
959 | } |
960 | ||
60918275 LP |
961 | Job *manager_get_job(Manager *m, uint32_t id) { |
962 | assert(m); | |
963 | ||
964 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
965 | } | |
966 | ||
87f0e418 | 967 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
968 | assert(m); |
969 | assert(name); | |
970 | ||
87f0e418 | 971 | return hashmap_get(m->units, name); |
60918275 LP |
972 | } |
973 | ||
c1e1601e | 974 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 975 | Unit *u; |
c1e1601e | 976 | unsigned n = 0; |
60918275 LP |
977 | |
978 | assert(m); | |
979 | ||
223dabab LP |
980 | /* Make sure we are not run recursively */ |
981 | if (m->dispatching_load_queue) | |
c1e1601e | 982 | return 0; |
223dabab LP |
983 | |
984 | m->dispatching_load_queue = true; | |
985 | ||
87f0e418 | 986 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
987 | * tries to load its data until the queue is empty */ |
988 | ||
595ed347 MS |
989 | while ((u = m->load_queue)) { |
990 | assert(u->in_load_queue); | |
034c6ed7 | 991 | |
595ed347 | 992 | unit_load(u); |
c1e1601e | 993 | n++; |
60918275 LP |
994 | } |
995 | ||
223dabab | 996 | m->dispatching_load_queue = false; |
c1e1601e | 997 | return n; |
60918275 LP |
998 | } |
999 | ||
c2756a68 LP |
1000 | int manager_load_unit_prepare( |
1001 | Manager *m, | |
1002 | const char *name, | |
1003 | const char *path, | |
718db961 | 1004 | sd_bus_error *e, |
c2756a68 LP |
1005 | Unit **_ret) { |
1006 | ||
87f0e418 | 1007 | Unit *ret; |
7d17cfbc | 1008 | UnitType t; |
60918275 LP |
1009 | int r; |
1010 | ||
1011 | assert(m); | |
9e2f7c11 | 1012 | assert(name || path); |
60918275 | 1013 | |
db06e3b6 LP |
1014 | /* This will prepare the unit for loading, but not actually |
1015 | * load anything from disk. */ | |
0301abf4 | 1016 | |
718db961 LP |
1017 | if (path && !is_path(path)) |
1018 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1019 | |
1020 | if (!name) | |
9eb977db | 1021 | name = path_get_file_name(path); |
9e2f7c11 | 1022 | |
7d17cfbc MS |
1023 | t = unit_name_to_type(name); |
1024 | ||
718db961 LP |
1025 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) |
1026 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); | |
60918275 | 1027 | |
7d17cfbc MS |
1028 | ret = manager_get_unit(m, name); |
1029 | if (ret) { | |
034c6ed7 | 1030 | *_ret = ret; |
413d6313 | 1031 | return 1; |
034c6ed7 | 1032 | } |
60918275 | 1033 | |
7d17cfbc MS |
1034 | ret = unit_new(m, unit_vtable[t]->object_size); |
1035 | if (!ret) | |
60918275 LP |
1036 | return -ENOMEM; |
1037 | ||
7d17cfbc | 1038 | if (path) { |
ac155bb8 MS |
1039 | ret->fragment_path = strdup(path); |
1040 | if (!ret->fragment_path) { | |
0301abf4 LP |
1041 | unit_free(ret); |
1042 | return -ENOMEM; | |
1043 | } | |
7d17cfbc | 1044 | } |
0301abf4 | 1045 | |
1058cbf2 ZJS |
1046 | r = unit_add_name(ret, name); |
1047 | if (r < 0) { | |
87f0e418 | 1048 | unit_free(ret); |
1ffba6fe | 1049 | return r; |
60918275 LP |
1050 | } |
1051 | ||
87f0e418 | 1052 | unit_add_to_load_queue(ret); |
c1e1601e | 1053 | unit_add_to_dbus_queue(ret); |
949061f0 | 1054 | unit_add_to_gc_queue(ret); |
c1e1601e | 1055 | |
db06e3b6 LP |
1056 | if (_ret) |
1057 | *_ret = ret; | |
1058 | ||
1059 | return 0; | |
1060 | } | |
1061 | ||
c2756a68 LP |
1062 | int manager_load_unit( |
1063 | Manager *m, | |
1064 | const char *name, | |
1065 | const char *path, | |
718db961 | 1066 | sd_bus_error *e, |
c2756a68 LP |
1067 | Unit **_ret) { |
1068 | ||
db06e3b6 LP |
1069 | int r; |
1070 | ||
1071 | assert(m); | |
1072 | ||
1073 | /* This will load the service information files, but not actually | |
1074 | * start any services or anything. */ | |
1075 | ||
c3090674 LP |
1076 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
1077 | if (r != 0) | |
db06e3b6 LP |
1078 | return r; |
1079 | ||
f50e0a01 | 1080 | manager_dispatch_load_queue(m); |
60918275 | 1081 | |
9e2f7c11 | 1082 | if (_ret) |
413d6313 | 1083 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 1084 | |
60918275 LP |
1085 | return 0; |
1086 | } | |
a66d02c3 | 1087 | |
cea8e32e | 1088 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1089 | Iterator i; |
a66d02c3 LP |
1090 | Job *j; |
1091 | ||
1092 | assert(s); | |
1093 | assert(f); | |
1094 | ||
034c6ed7 | 1095 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 1096 | job_dump(j, f, prefix); |
a66d02c3 LP |
1097 | } |
1098 | ||
87f0e418 | 1099 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 1100 | Iterator i; |
87f0e418 | 1101 | Unit *u; |
11dd41ce | 1102 | const char *t; |
a66d02c3 LP |
1103 | |
1104 | assert(s); | |
1105 | assert(f); | |
1106 | ||
87f0e418 | 1107 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 1108 | if (u->id == t) |
87f0e418 | 1109 | unit_dump(u, f, prefix); |
a66d02c3 | 1110 | } |
7fad411c LP |
1111 | |
1112 | void manager_clear_jobs(Manager *m) { | |
1113 | Job *j; | |
1114 | ||
1115 | assert(m); | |
1116 | ||
7fad411c | 1117 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
1118 | /* No need to recurse. We're cancelling all jobs. */ |
1119 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 1120 | } |
83c60c9f | 1121 | |
9588bc32 | 1122 | static unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 1123 | Job *j; |
c1e1601e | 1124 | unsigned n = 0; |
83c60c9f | 1125 | |
034c6ed7 | 1126 | if (m->dispatching_run_queue) |
c1e1601e | 1127 | return 0; |
034c6ed7 LP |
1128 | |
1129 | m->dispatching_run_queue = true; | |
9152c765 | 1130 | |
034c6ed7 | 1131 | while ((j = m->run_queue)) { |
ac1135be | 1132 | assert(j->installed); |
034c6ed7 LP |
1133 | assert(j->in_run_queue); |
1134 | ||
1135 | job_run_and_invalidate(j); | |
c1e1601e | 1136 | n++; |
9152c765 | 1137 | } |
034c6ed7 LP |
1138 | |
1139 | m->dispatching_run_queue = false; | |
03b717a3 | 1140 | |
a0b64226 | 1141 | if (m->n_running_jobs > 0) |
03b717a3 MS |
1142 | manager_watch_jobs_in_progress(m); |
1143 | ||
31a7eb86 ZJS |
1144 | if (m->n_on_console > 0) |
1145 | manager_watch_idle_pipe(m); | |
1146 | ||
c1e1601e LP |
1147 | return n; |
1148 | } | |
1149 | ||
9588bc32 | 1150 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
c1e1601e | 1151 | Job *j; |
595ed347 | 1152 | Unit *u; |
c1e1601e LP |
1153 | unsigned n = 0; |
1154 | ||
1155 | assert(m); | |
1156 | ||
1157 | if (m->dispatching_dbus_queue) | |
1158 | return 0; | |
1159 | ||
1160 | m->dispatching_dbus_queue = true; | |
1161 | ||
595ed347 MS |
1162 | while ((u = m->dbus_unit_queue)) { |
1163 | assert(u->in_dbus_queue); | |
c1e1601e | 1164 | |
595ed347 | 1165 | bus_unit_send_change_signal(u); |
c1e1601e LP |
1166 | n++; |
1167 | } | |
1168 | ||
1169 | while ((j = m->dbus_job_queue)) { | |
1170 | assert(j->in_dbus_queue); | |
1171 | ||
1172 | bus_job_send_change_signal(j); | |
1173 | n++; | |
1174 | } | |
1175 | ||
1176 | m->dispatching_dbus_queue = false; | |
71445ae7 LP |
1177 | |
1178 | if (m->send_reloading_done) { | |
1179 | m->send_reloading_done = false; | |
1180 | ||
718db961 | 1181 | bus_manager_send_reloading(m, false); |
71445ae7 LP |
1182 | } |
1183 | ||
718db961 LP |
1184 | if (m->queued_message) |
1185 | bus_send_queued_message(m); | |
1186 | ||
c1e1601e | 1187 | return n; |
9152c765 LP |
1188 | } |
1189 | ||
718db961 LP |
1190 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1191 | Manager *m = userdata; | |
8c47c732 LP |
1192 | ssize_t n; |
1193 | ||
1194 | assert(m); | |
718db961 LP |
1195 | assert(m->notify_fd == fd); |
1196 | ||
1197 | if (revents != EPOLLIN) { | |
1198 | log_warning("Got unexpected poll event for notify fd."); | |
1199 | return 0; | |
1200 | } | |
8c47c732 LP |
1201 | |
1202 | for (;;) { | |
1203 | char buf[4096]; | |
b92bea5d ZJS |
1204 | struct iovec iovec = { |
1205 | .iov_base = buf, | |
1206 | .iov_len = sizeof(buf)-1, | |
1207 | }; | |
1208 | ||
8c47c732 LP |
1209 | union { |
1210 | struct cmsghdr cmsghdr; | |
1211 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
b92bea5d ZJS |
1212 | } control = {}; |
1213 | ||
1214 | struct msghdr msghdr = { | |
1215 | .msg_iov = &iovec, | |
1216 | .msg_iovlen = 1, | |
1217 | .msg_control = &control, | |
1218 | .msg_controllen = sizeof(control), | |
1219 | }; | |
1220 | struct ucred *ucred; | |
8c47c732 | 1221 | Unit *u; |
7fd1b19b | 1222 | _cleanup_strv_free_ char **tags = NULL; |
8c47c732 | 1223 | |
718db961 | 1224 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); |
bd0af849 | 1225 | if (n <= 0) { |
b92bea5d | 1226 | if (n == 0) |
8c47c732 LP |
1227 | return -EIO; |
1228 | ||
f6144808 | 1229 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
1230 | break; |
1231 | ||
1232 | return -errno; | |
1233 | } | |
1234 | ||
1235 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
1236 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
1237 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
1238 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
1239 | log_warning("Received notify message without credentials. Ignoring."); | |
1240 | continue; | |
1241 | } | |
1242 | ||
1243 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
1244 | ||
bd0af849 ZJS |
1245 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)); |
1246 | if (!u) { | |
4ad49000 | 1247 | u = manager_get_unit_by_pid(m, ucred->pid); |
bd0af849 | 1248 | if (!u) { |
7989e1f2 | 1249 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); |
8c47c732 LP |
1250 | continue; |
1251 | } | |
bd0af849 | 1252 | } |
8c47c732 | 1253 | |
8c40acf7 LP |
1254 | assert((size_t) n < sizeof(buf)); |
1255 | buf[n] = 0; | |
bd0af849 ZJS |
1256 | tags = strv_split(buf, "\n\r"); |
1257 | if (!tags) | |
1258 | return log_oom(); | |
8c47c732 | 1259 | |
66870f90 | 1260 | log_debug_unit(u->id, "Got notification message for unit %s", u->id); |
8c47c732 LP |
1261 | |
1262 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1263 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1264 | } |
1265 | ||
1266 | return 0; | |
1267 | } | |
1268 | ||
034c6ed7 | 1269 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1270 | assert(m); |
1271 | ||
1272 | for (;;) { | |
b92bea5d | 1273 | siginfo_t si = {}; |
87f0e418 | 1274 | Unit *u; |
8c47c732 | 1275 | int r; |
9152c765 | 1276 | |
4112df16 LP |
1277 | /* First we call waitd() for a PID and do not reap the |
1278 | * zombie. That way we can still access /proc/$PID for | |
1279 | * it while it is a zombie. */ | |
1280 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1281 | |
1282 | if (errno == ECHILD) | |
1283 | break; | |
1284 | ||
4112df16 LP |
1285 | if (errno == EINTR) |
1286 | continue; | |
1287 | ||
9152c765 | 1288 | return -errno; |
acbb0225 | 1289 | } |
9152c765 | 1290 | |
4112df16 | 1291 | if (si.si_pid <= 0) |
9152c765 LP |
1292 | break; |
1293 | ||
15d5d9d9 | 1294 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
7fd1b19b | 1295 | _cleanup_free_ char *name = NULL; |
4112df16 | 1296 | |
87d2c1ff | 1297 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1298 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1299 | } |
1300 | ||
8c47c732 LP |
1301 | /* Let's flush any message the dying child might still |
1302 | * have queued for us. This ensures that the process | |
1303 | * still exists in /proc so that we can figure out | |
1304 | * which cgroup and hence unit it belongs to. */ | |
718db961 | 1305 | r = manager_dispatch_notify_fd(m->notify_event_source, m->notify_fd, EPOLLIN, m); |
bd0af849 | 1306 | if (r < 0) |
8c47c732 LP |
1307 | return r; |
1308 | ||
1309 | /* And now figure out the unit this belongs to */ | |
bd0af849 ZJS |
1310 | u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
1311 | if (!u) | |
4ad49000 | 1312 | u = manager_get_unit_by_pid(m, si.si_pid); |
8c47c732 | 1313 | |
4112df16 LP |
1314 | /* And now, we actually reap the zombie. */ |
1315 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1316 | if (errno == EINTR) | |
1317 | continue; | |
1318 | ||
1319 | return -errno; | |
1320 | } | |
1321 | ||
034c6ed7 LP |
1322 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1323 | continue; | |
1324 | ||
bb00e604 LP |
1325 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1326 | (long unsigned) si.si_pid, | |
4112df16 LP |
1327 | sigchld_code_to_string(si.si_code), |
1328 | si.si_status, | |
d06dacd0 LP |
1329 | strna(si.si_code == CLD_EXITED |
1330 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1331 | : signal_to_string(si.si_status))); | |
acbb0225 | 1332 | |
8c47c732 | 1333 | if (!u) |
9152c765 LP |
1334 | continue; |
1335 | ||
66870f90 ZJS |
1336 | log_debug_unit(u->id, |
1337 | "Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); | |
6c1a0478 | 1338 | |
c6c18be3 | 1339 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1340 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1341 | } |
1342 | ||
1343 | return 0; | |
1344 | } | |
1345 | ||
7d793605 | 1346 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
718db961 | 1347 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 1348 | int r; |
398ef8ba | 1349 | |
66870f90 | 1350 | log_debug_unit(name, "Activating special unit %s", name); |
1e001f52 | 1351 | |
bd0af849 ZJS |
1352 | r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL); |
1353 | if (r < 0) | |
718db961 | 1354 | log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
a1b256b0 LP |
1355 | |
1356 | return r; | |
28247076 LP |
1357 | } |
1358 | ||
718db961 LP |
1359 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1360 | Manager *m = userdata; | |
9152c765 LP |
1361 | ssize_t n; |
1362 | struct signalfd_siginfo sfsi; | |
1363 | bool sigchld = false; | |
1364 | ||
1365 | assert(m); | |
718db961 LP |
1366 | assert(m->signal_fd == fd); |
1367 | ||
1368 | if (revents != EPOLLIN) { | |
1369 | log_warning("Got unexpected events from signal file descriptor."); | |
1370 | return 0; | |
1371 | } | |
9152c765 LP |
1372 | |
1373 | for (;;) { | |
718db961 | 1374 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
57cb4adf | 1375 | if (n != sizeof(sfsi)) { |
9152c765 LP |
1376 | |
1377 | if (n >= 0) | |
1378 | return -EIO; | |
1379 | ||
63090775 | 1380 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1381 | break; |
9152c765 LP |
1382 | |
1383 | return -errno; | |
1384 | } | |
1385 | ||
67370238 LP |
1386 | if (sfsi.ssi_pid > 0) { |
1387 | char *p = NULL; | |
1388 | ||
87d2c1ff | 1389 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1390 | |
67370238 | 1391 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1392 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1393 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1394 | free(p); | |
1395 | } else | |
4e240ab0 | 1396 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1397 | |
b9cd2ec1 LP |
1398 | switch (sfsi.ssi_signo) { |
1399 | ||
4112df16 | 1400 | case SIGCHLD: |
9152c765 | 1401 | sigchld = true; |
b9cd2ec1 LP |
1402 | break; |
1403 | ||
6632c602 | 1404 | case SIGTERM: |
67445f4e | 1405 | if (m->running_as == SYSTEMD_SYSTEM) { |
db06e3b6 LP |
1406 | /* This is for compatibility with the |
1407 | * original sysvinit */ | |
e11dc4a2 | 1408 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1409 | break; |
1410 | } | |
84e9af1e | 1411 | |
a1b256b0 | 1412 | /* Fall through */ |
e11dc4a2 LP |
1413 | |
1414 | case SIGINT: | |
67445f4e | 1415 | if (m->running_as == SYSTEMD_SYSTEM) { |
f49fd1d5 | 1416 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
84e9af1e LP |
1417 | break; |
1418 | } | |
1419 | ||
a1b256b0 | 1420 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1421 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1422 | m->exit_code = MANAGER_EXIT; |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | break; | |
84e9af1e | 1427 | |
28247076 | 1428 | case SIGWINCH: |
67445f4e | 1429 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1430 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1431 | |
28247076 LP |
1432 | /* This is a nop on non-init */ |
1433 | break; | |
84e9af1e | 1434 | |
28247076 | 1435 | case SIGPWR: |
67445f4e | 1436 | if (m->running_as == SYSTEMD_SYSTEM) |
7d793605 | 1437 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1438 | |
28247076 | 1439 | /* This is a nop on non-init */ |
84e9af1e | 1440 | break; |
6632c602 | 1441 | |
1005d14f | 1442 | case SIGUSR1: { |
57ee42ce LP |
1443 | Unit *u; |
1444 | ||
1445 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1446 | ||
1447 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1448 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1449 | bus_init(m, true); |
57ee42ce LP |
1450 | } |
1451 | ||
1452 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1453 | log_info("Loading D-Bus service..."); | |
7d793605 | 1454 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1455 | } |
1456 | ||
1457 | break; | |
1458 | } | |
1459 | ||
2149e37c | 1460 | case SIGUSR2: { |
718db961 LP |
1461 | _cleanup_free_ char *dump = NULL; |
1462 | _cleanup_fclose_ FILE *f = NULL; | |
2149e37c LP |
1463 | size_t size; |
1464 | ||
718db961 LP |
1465 | f = open_memstream(&dump, &size); |
1466 | if (!f) { | |
2149e37c LP |
1467 | log_warning("Failed to allocate memory stream."); |
1468 | break; | |
1469 | } | |
1470 | ||
1471 | manager_dump_units(m, f, "\t"); | |
1472 | manager_dump_jobs(m, f, "\t"); | |
1473 | ||
1474 | if (ferror(f)) { | |
2149e37c LP |
1475 | log_warning("Failed to write status stream"); |
1476 | break; | |
1477 | } | |
1478 | ||
2149e37c | 1479 | log_dump(LOG_INFO, dump); |
1005d14f | 1480 | break; |
2149e37c | 1481 | } |
1005d14f | 1482 | |
a16e1123 LP |
1483 | case SIGHUP: |
1484 | m->exit_code = MANAGER_RELOAD; | |
1485 | break; | |
1486 | ||
7d793605 | 1487 | default: { |
253ee27a | 1488 | |
0003d1ab LP |
1489 | /* Starting SIGRTMIN+0 */ |
1490 | static const char * const target_table[] = { | |
7d793605 LP |
1491 | [0] = SPECIAL_DEFAULT_TARGET, |
1492 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1493 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1494 | [3] = SPECIAL_HALT_TARGET, |
1495 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1496 | [5] = SPECIAL_REBOOT_TARGET, |
1497 | [6] = SPECIAL_KEXEC_TARGET | |
1498 | }; | |
1499 | ||
1500 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1501 | static const ManagerExitCode code_table[] = { | |
1502 | [0] = MANAGER_HALT, | |
1503 | [1] = MANAGER_POWEROFF, | |
1504 | [2] = MANAGER_REBOOT, | |
1505 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1506 | }; |
1507 | ||
1508 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1509 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1510 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1511 | manager_start_target(m, target_table[idx], | |
1512 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1513 | break; |
1514 | } | |
1515 | ||
0003d1ab LP |
1516 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1517 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1518 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1519 | break; | |
1520 | } | |
1521 | ||
0658666b LP |
1522 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1523 | ||
1524 | case 20: | |
1525 | log_debug("Enabling showing of status."); | |
27d340c7 | 1526 | manager_set_show_status(m, true); |
0658666b LP |
1527 | break; |
1528 | ||
1529 | case 21: | |
1530 | log_debug("Disabling showing of status."); | |
27d340c7 | 1531 | manager_set_show_status(m, false); |
0658666b LP |
1532 | break; |
1533 | ||
253ee27a LP |
1534 | case 22: |
1535 | log_set_max_level(LOG_DEBUG); | |
1536 | log_notice("Setting log level to debug."); | |
1537 | break; | |
1538 | ||
1539 | case 23: | |
1540 | log_set_max_level(LOG_INFO); | |
1541 | log_notice("Setting log level to info."); | |
1542 | break; | |
1543 | ||
600b704e LP |
1544 | case 24: |
1545 | if (m->running_as == SYSTEMD_USER) { | |
1546 | m->exit_code = MANAGER_EXIT; | |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | /* This is a nop on init */ | |
1551 | break; | |
1552 | ||
4cfa2c99 LP |
1553 | case 26: |
1554 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1555 | log_notice("Setting log target to journal-or-kmsg."); | |
1556 | break; | |
1557 | ||
253ee27a LP |
1558 | case 27: |
1559 | log_set_target(LOG_TARGET_CONSOLE); | |
1560 | log_notice("Setting log target to console."); | |
1561 | break; | |
1562 | ||
1563 | case 28: | |
1564 | log_set_target(LOG_TARGET_KMSG); | |
1565 | log_notice("Setting log target to kmsg."); | |
1566 | break; | |
1567 | ||
1568 | case 29: | |
1569 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1570 | log_notice("Setting log target to syslog-or-kmsg."); | |
1571 | break; | |
1572 | ||
0658666b | 1573 | default: |
4e240ab0 | 1574 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1575 | } |
b9cd2ec1 | 1576 | } |
7d793605 | 1577 | } |
9152c765 LP |
1578 | } |
1579 | ||
1580 | if (sigchld) | |
034c6ed7 LP |
1581 | return manager_dispatch_sigchld(m); |
1582 | ||
1583 | return 0; | |
1584 | } | |
1585 | ||
718db961 LP |
1586 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1587 | Manager *m = userdata; | |
1588 | Iterator i; | |
1589 | Unit *u; | |
034c6ed7 LP |
1590 | |
1591 | assert(m); | |
718db961 | 1592 | assert(m->time_change_fd == fd); |
034c6ed7 | 1593 | |
718db961 LP |
1594 | log_struct(LOG_INFO, |
1595 | MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), | |
1596 | "MESSAGE=Time has been changed", | |
1597 | NULL); | |
034c6ed7 | 1598 | |
718db961 LP |
1599 | /* Restart the watch */ |
1600 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); | |
acbb0225 | 1601 | |
718db961 LP |
1602 | close_nointr_nofail(m->time_change_fd); |
1603 | m->time_change_fd = -1; | |
ef734fd6 | 1604 | |
718db961 | 1605 | manager_setup_time_change(m); |
4e434314 | 1606 | |
718db961 LP |
1607 | HASHMAP_FOREACH(u, m->units, i) |
1608 | if (UNIT_VTABLE(u)->time_change) | |
1609 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 1610 | |
718db961 LP |
1611 | return 0; |
1612 | } | |
ea430986 | 1613 | |
718db961 LP |
1614 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1615 | Manager *m = userdata; | |
8742514c | 1616 | |
718db961 LP |
1617 | assert(m); |
1618 | assert(m->idle_pipe[2] == fd); | |
8742514c | 1619 | |
718db961 | 1620 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 1621 | |
718db961 LP |
1622 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
1623 | manager_close_idle_pipe(m); | |
03b717a3 | 1624 | |
718db961 LP |
1625 | return 0; |
1626 | } | |
31a7eb86 | 1627 | |
718db961 LP |
1628 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
1629 | Manager *m = userdata; | |
31a7eb86 | 1630 | |
718db961 | 1631 | assert(m); |
9152c765 | 1632 | |
718db961 | 1633 | manager_print_jobs_in_progress(m); |
9152c765 LP |
1634 | return 0; |
1635 | } | |
1636 | ||
1637 | int manager_loop(Manager *m) { | |
1638 | int r; | |
9152c765 | 1639 | |
fac9f8df | 1640 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1641 | |
9152c765 | 1642 | assert(m); |
a16e1123 | 1643 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1644 | |
fe51822e LP |
1645 | /* Release the path cache */ |
1646 | set_free_free(m->unit_path_cache); | |
1647 | m->unit_path_cache = NULL; | |
1648 | ||
b0c918b9 LP |
1649 | manager_check_finished(m); |
1650 | ||
a4312405 | 1651 | /* There might still be some zombies hanging around from |
f3669545 | 1652 | * before we were exec()'ed. Let's reap them. */ |
e96d6be7 LP |
1653 | r = manager_dispatch_sigchld(m); |
1654 | if (r < 0) | |
a4312405 LP |
1655 | return r; |
1656 | ||
a16e1123 | 1657 | while (m->exit_code == MANAGER_RUNNING) { |
718db961 | 1658 | usec_t wait_usec; |
9152c765 | 1659 | |
67445f4e | 1660 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) |
e96d6be7 LP |
1661 | watchdog_ping(); |
1662 | ||
ea430986 LP |
1663 | if (!ratelimit_test(&rl)) { |
1664 | /* Yay, something is going seriously wrong, pause a little */ | |
1665 | log_warning("Looping too fast. Throttling execution a little."); | |
1666 | sleep(1); | |
e96d6be7 | 1667 | continue; |
ea430986 LP |
1668 | } |
1669 | ||
37a8e683 | 1670 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1671 | continue; |
1672 | ||
cf1265e1 | 1673 | if (manager_dispatch_gc_queue(m) > 0) |
701cc384 LP |
1674 | continue; |
1675 | ||
cf1265e1 | 1676 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 1677 | continue; |
034c6ed7 | 1678 | |
cf1265e1 | 1679 | if (manager_dispatch_cgroup_queue(m) > 0) |
c1e1601e LP |
1680 | continue; |
1681 | ||
cf1265e1 | 1682 | if (manager_dispatch_run_queue(m) > 0) |
c1e1601e LP |
1683 | continue; |
1684 | ||
1685 | if (manager_dispatch_dbus_queue(m) > 0) | |
ea430986 | 1686 | continue; |
ea430986 | 1687 | |
c757a65b | 1688 | /* Sleep for half the watchdog time */ |
67445f4e | 1689 | if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) { |
718db961 LP |
1690 | wait_usec = m->runtime_watchdog / 2; |
1691 | if (wait_usec <= 0) | |
1692 | wait_usec = 1; | |
c757a65b | 1693 | } else |
718db961 | 1694 | wait_usec = (usec_t) -1; |
9152c765 | 1695 | |
718db961 LP |
1696 | r = sd_event_run(m->event, wait_usec); |
1697 | if (r < 0) { | |
1698 | log_error("Failed to run event loop: %s", strerror(-r)); | |
957ca890 | 1699 | return r; |
718db961 | 1700 | } |
a16e1123 | 1701 | } |
957ca890 | 1702 | |
a16e1123 | 1703 | return m->exit_code; |
83c60c9f | 1704 | } |
ea430986 | 1705 | |
718db961 | 1706 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 1707 | _cleanup_free_ char *n = NULL; |
ea430986 | 1708 | Unit *u; |
80fbf05e | 1709 | int r; |
ea430986 LP |
1710 | |
1711 | assert(m); | |
1712 | assert(s); | |
1713 | assert(_u); | |
1714 | ||
ede3a796 LP |
1715 | r = unit_name_from_dbus_path(s, &n); |
1716 | if (r < 0) | |
1717 | return r; | |
ea430986 | 1718 | |
80fbf05e | 1719 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
1720 | if (r < 0) |
1721 | return r; | |
ea430986 LP |
1722 | |
1723 | *_u = u; | |
1724 | ||
1725 | return 0; | |
1726 | } | |
86fbf370 LP |
1727 | |
1728 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 1729 | const char *p; |
86fbf370 | 1730 | unsigned id; |
718db961 | 1731 | Job *j; |
86fbf370 LP |
1732 | int r; |
1733 | ||
1734 | assert(m); | |
1735 | assert(s); | |
1736 | assert(_j); | |
1737 | ||
718db961 LP |
1738 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
1739 | if (!p) | |
86fbf370 LP |
1740 | return -EINVAL; |
1741 | ||
718db961 | 1742 | r = safe_atou(p, &id); |
8742514c | 1743 | if (r < 0) |
86fbf370 LP |
1744 | return r; |
1745 | ||
8742514c LP |
1746 | j = manager_get_job(m, id); |
1747 | if (!j) | |
86fbf370 LP |
1748 | return -ENOENT; |
1749 | ||
1750 | *_j = j; | |
1751 | ||
1752 | return 0; | |
1753 | } | |
dfcd764e | 1754 | |
4927fcae | 1755 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1756 | |
4927fcae LP |
1757 | #ifdef HAVE_AUDIT |
1758 | char *p; | |
c1165f82 | 1759 | int audit_fd; |
e537352b | 1760 | |
c1165f82 LP |
1761 | audit_fd = get_audit_fd(); |
1762 | if (audit_fd < 0) | |
e537352b LP |
1763 | return; |
1764 | ||
bbd3a7ba LP |
1765 | /* Don't generate audit events if the service was already |
1766 | * started and we're just deserializing */ | |
a7556052 | 1767 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1768 | return; |
1769 | ||
67445f4e | 1770 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
1771 | return; |
1772 | ||
ac155bb8 | 1773 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1774 | return; |
1775 | ||
bd0af849 ZJS |
1776 | p = unit_name_to_prefix_and_instance(u->id); |
1777 | if (!p) { | |
66870f90 ZJS |
1778 | log_error_unit(u->id, |
1779 | "Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); | |
e537352b LP |
1780 | return; |
1781 | } | |
1782 | ||
c1165f82 | 1783 | if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1784 | if (errno == EPERM) { |
1785 | /* We aren't allowed to send audit messages? | |
44785992 | 1786 | * Then let's not retry again. */ |
c1165f82 | 1787 | close_audit_fd(); |
44785992 LP |
1788 | } else |
1789 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1790 | } |
e537352b | 1791 | |
4927fcae LP |
1792 | free(p); |
1793 | #endif | |
e537352b | 1794 | |
e537352b LP |
1795 | } |
1796 | ||
e983b760 LP |
1797 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1798 | int fd = -1; | |
1799 | union sockaddr_union sa; | |
1800 | int n = 0; | |
1801 | char *message = NULL; | |
e983b760 LP |
1802 | |
1803 | /* Don't generate plymouth events if the service was already | |
1804 | * started and we're just deserializing */ | |
a7556052 | 1805 | if (m->n_reloading > 0) |
e983b760 LP |
1806 | return; |
1807 | ||
67445f4e | 1808 | if (m->running_as != SYSTEMD_SYSTEM) |
e983b760 LP |
1809 | return; |
1810 | ||
3772995a LP |
1811 | if (detect_container(NULL) > 0) |
1812 | return; | |
1813 | ||
ac155bb8 MS |
1814 | if (u->type != UNIT_SERVICE && |
1815 | u->type != UNIT_MOUNT && | |
1816 | u->type != UNIT_SWAP) | |
e983b760 LP |
1817 | return; |
1818 | ||
1819 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1820 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
1821 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
1822 | if (fd < 0) { | |
e983b760 LP |
1823 | log_error("socket() failed: %m"); |
1824 | return; | |
1825 | } | |
1826 | ||
1827 | zero(sa); | |
1828 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1829 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1830 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1831 | |
1832 | if (errno != EPIPE && | |
1833 | errno != EAGAIN && | |
1834 | errno != ENOENT && | |
1835 | errno != ECONNREFUSED && | |
1836 | errno != ECONNRESET && | |
1837 | errno != ECONNABORTED) | |
1838 | log_error("connect() failed: %m"); | |
1839 | ||
1840 | goto finish; | |
1841 | } | |
1842 | ||
ac155bb8 | 1843 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1844 | log_oom(); |
e983b760 LP |
1845 | goto finish; |
1846 | } | |
1847 | ||
1848 | errno = 0; | |
bd40a2d8 | 1849 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1850 | |
1851 | if (errno != EPIPE && | |
1852 | errno != EAGAIN && | |
1853 | errno != ENOENT && | |
1854 | errno != ECONNREFUSED && | |
1855 | errno != ECONNRESET && | |
1856 | errno != ECONNABORTED) | |
1857 | log_error("Failed to write Plymouth message: %m"); | |
1858 | ||
1859 | goto finish; | |
1860 | } | |
1861 | ||
1862 | finish: | |
1863 | if (fd >= 0) | |
1864 | close_nointr_nofail(fd); | |
1865 | ||
1866 | free(message); | |
1867 | } | |
1868 | ||
05e343b7 LP |
1869 | void manager_dispatch_bus_name_owner_changed( |
1870 | Manager *m, | |
1871 | const char *name, | |
1872 | const char* old_owner, | |
1873 | const char *new_owner) { | |
1874 | ||
1875 | Unit *u; | |
1876 | ||
1877 | assert(m); | |
1878 | assert(name); | |
1879 | ||
718db961 LP |
1880 | u = hashmap_get(m->watch_bus, name); |
1881 | if (!u) | |
05e343b7 LP |
1882 | return; |
1883 | ||
1884 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1885 | } | |
1886 | ||
d8d5ab98 | 1887 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1888 | char *path = NULL; |
df28bc08 | 1889 | int fd = -1; |
a16e1123 LP |
1890 | FILE *f; |
1891 | ||
1892 | assert(_f); | |
1893 | ||
67445f4e | 1894 | if (m->running_as == SYSTEMD_SYSTEM) |
2b583ce6 | 1895 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1896 | else |
1897 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1898 | |
b925e726 LP |
1899 | if (!path) |
1900 | return -ENOMEM; | |
a16e1123 | 1901 | |
5c0d398d LP |
1902 | RUN_WITH_UMASK(0077) { |
1903 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1904 | } | |
a16e1123 LP |
1905 | |
1906 | if (fd < 0) { | |
1907 | free(path); | |
1908 | return -errno; | |
1909 | } | |
1910 | ||
1911 | unlink(path); | |
1912 | ||
1913 | log_debug("Serializing state to %s", path); | |
1914 | free(path); | |
1915 | ||
01e10de3 LP |
1916 | f = fdopen(fd, "w+"); |
1917 | if (!f) | |
a16e1123 LP |
1918 | return -errno; |
1919 | ||
1920 | *_f = f; | |
1921 | ||
1922 | return 0; | |
1923 | } | |
1924 | ||
b3680f49 | 1925 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { |
a16e1123 LP |
1926 | Iterator i; |
1927 | Unit *u; | |
1928 | const char *t; | |
4a9fd066 | 1929 | char **e; |
a16e1123 LP |
1930 | int r; |
1931 | ||
1932 | assert(m); | |
1933 | assert(f); | |
1934 | assert(fds); | |
1935 | ||
a7556052 | 1936 | m->n_reloading ++; |
38c52d46 | 1937 | |
01d67b43 LP |
1938 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
1939 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
1940 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
1941 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 1942 | |
915b3753 | 1943 | dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp); |
915b3753 | 1944 | dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp); |
718db961 | 1945 | dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp); |
e9ddabc2 | 1946 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 1947 | |
26a1efdf | 1948 | if (!in_initrd()) { |
915b3753 | 1949 | dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp); |
f38ed060 | 1950 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); |
718db961 LP |
1951 | dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp); |
1952 | dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp); | |
1953 | dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp); | |
1954 | dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp); | |
1955 | dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp); | |
1956 | dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp); | |
f38ed060 | 1957 | } |
47a483a1 | 1958 | |
b3680f49 HH |
1959 | if (!switching_root) { |
1960 | STRV_FOREACH(e, m->environment) { | |
1961 | _cleanup_free_ char *ce; | |
4a9fd066 | 1962 | |
b3680f49 HH |
1963 | ce = cescape(*e); |
1964 | if (ce) | |
1965 | fprintf(f, "env=%s\n", *e); | |
1966 | } | |
4a9fd066 OS |
1967 | } |
1968 | ||
6fa48533 LP |
1969 | bus_serialize(m, f); |
1970 | ||
f2382a94 LP |
1971 | fputc('\n', f); |
1972 | ||
a16e1123 | 1973 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 1974 | if (u->id != t) |
a16e1123 LP |
1975 | continue; |
1976 | ||
1977 | if (!unit_can_serialize(u)) | |
1978 | continue; | |
1979 | ||
1980 | /* Start marker */ | |
ac155bb8 | 1981 | fputs(u->id, f); |
a16e1123 LP |
1982 | fputc('\n', f); |
1983 | ||
6fa48533 LP |
1984 | r = unit_serialize(u, f, fds, !switching_root); |
1985 | if (r < 0) { | |
a7556052 | 1986 | m->n_reloading --; |
a16e1123 | 1987 | return r; |
38c52d46 | 1988 | } |
a16e1123 LP |
1989 | } |
1990 | ||
a7556052 LP |
1991 | assert(m->n_reloading > 0); |
1992 | m->n_reloading --; | |
38c52d46 | 1993 | |
a16e1123 LP |
1994 | if (ferror(f)) |
1995 | return -EIO; | |
1996 | ||
b23de6af LP |
1997 | r = bus_fdset_add_all(m, fds); |
1998 | if (r < 0) | |
1999 | return r; | |
2000 | ||
a16e1123 LP |
2001 | return 0; |
2002 | } | |
2003 | ||
2004 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
2005 | int r = 0; | |
2006 | ||
2007 | assert(m); | |
2008 | assert(f); | |
2009 | ||
2010 | log_debug("Deserializing state..."); | |
2011 | ||
a7556052 | 2012 | m->n_reloading ++; |
82c64bf5 | 2013 | |
10f8e83c | 2014 | for (;;) { |
20c03b7b | 2015 | char line[LINE_MAX], *l; |
10f8e83c LP |
2016 | |
2017 | if (!fgets(line, sizeof(line), f)) { | |
2018 | if (feof(f)) | |
2019 | r = 0; | |
2020 | else | |
2021 | r = -errno; | |
2022 | ||
2023 | goto finish; | |
2024 | } | |
2025 | ||
2026 | char_array_0(line); | |
2027 | l = strstrip(line); | |
2028 | ||
2029 | if (l[0] == 0) | |
2030 | break; | |
2031 | ||
01d67b43 LP |
2032 | if (startswith(l, "current-job-id=")) { |
2033 | uint32_t id; | |
2034 | ||
2035 | if (safe_atou32(l+15, &id) < 0) | |
2036 | log_debug("Failed to parse current job id value %s", l+15); | |
2037 | else | |
2038 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 2039 | |
33c5fae9 LP |
2040 | } else if (startswith(l, "n-installed-jobs=")) { |
2041 | uint32_t n; | |
2042 | ||
2043 | if (safe_atou32(l+17, &n) < 0) | |
2044 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
2045 | else | |
2046 | m->n_installed_jobs += n; | |
718db961 | 2047 | |
33c5fae9 LP |
2048 | } else if (startswith(l, "n-failed-jobs=")) { |
2049 | uint32_t n; | |
2050 | ||
2051 | if (safe_atou32(l+14, &n) < 0) | |
2052 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
2053 | else | |
2054 | m->n_failed_jobs += n; | |
718db961 | 2055 | |
01d67b43 LP |
2056 | } else if (startswith(l, "taint-usr=")) { |
2057 | int b; | |
2058 | ||
2059 | if ((b = parse_boolean(l+10)) < 0) | |
2060 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
2061 | else | |
2062 | m->taint_usr = m->taint_usr || b; | |
718db961 | 2063 | |
915b3753 LP |
2064 | } else if (startswith(l, "firmware-timestamp=")) |
2065 | dual_timestamp_deserialize(l+19, &m->firmware_timestamp); | |
2066 | else if (startswith(l, "loader-timestamp=")) | |
2067 | dual_timestamp_deserialize(l+17, &m->loader_timestamp); | |
2068 | else if (startswith(l, "kernel-timestamp=")) | |
2069 | dual_timestamp_deserialize(l+17, &m->kernel_timestamp); | |
2070 | else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 | 2071 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
915b3753 LP |
2072 | else if (startswith(l, "userspace-timestamp=")) |
2073 | dual_timestamp_deserialize(l+20, &m->userspace_timestamp); | |
10717a1a | 2074 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 2075 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
718db961 LP |
2076 | else if (startswith(l, "security-start-timestamp=")) |
2077 | dual_timestamp_deserialize(l+25, &m->security_start_timestamp); | |
2078 | else if (startswith(l, "security-finish-timestamp=")) | |
2079 | dual_timestamp_deserialize(l+26, &m->security_finish_timestamp); | |
2080 | else if (startswith(l, "generators-start-timestamp=")) | |
2081 | dual_timestamp_deserialize(l+27, &m->generators_start_timestamp); | |
2082 | else if (startswith(l, "generators-finish-timestamp=")) | |
2083 | dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp); | |
2084 | else if (startswith(l, "units-load-start-timestamp=")) | |
2085 | dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp); | |
2086 | else if (startswith(l, "units-load-finish-timestamp=")) | |
2087 | dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp); | |
4a9fd066 OS |
2088 | else if (startswith(l, "env=")) { |
2089 | _cleanup_free_ char *uce = NULL; | |
2090 | char **e; | |
2091 | ||
2092 | uce = cunescape(l+4); | |
2093 | if (!uce) { | |
2094 | r = -ENOMEM; | |
2095 | goto finish; | |
2096 | } | |
2097 | ||
2098 | e = strv_env_set(m->environment, uce); | |
2099 | if (!e) { | |
2100 | r = -ENOMEM; | |
2101 | goto finish; | |
2102 | } | |
2103 | ||
2104 | strv_free(m->environment); | |
2105 | m->environment = e; | |
6fa48533 | 2106 | } else if (bus_deserialize_item(m, l) == 0) |
10f8e83c LP |
2107 | log_debug("Unknown serialization item '%s'", l); |
2108 | } | |
2109 | ||
a16e1123 LP |
2110 | for (;;) { |
2111 | Unit *u; | |
2112 | char name[UNIT_NAME_MAX+2]; | |
2113 | ||
2114 | /* Start marker */ | |
2115 | if (!fgets(name, sizeof(name), f)) { | |
2116 | if (feof(f)) | |
10f8e83c LP |
2117 | r = 0; |
2118 | else | |
2119 | r = -errno; | |
a16e1123 | 2120 | |
82c64bf5 | 2121 | goto finish; |
a16e1123 LP |
2122 | } |
2123 | ||
2124 | char_array_0(name); | |
2125 | ||
bd0af849 ZJS |
2126 | r = manager_load_unit(m, strstrip(name), NULL, NULL, &u); |
2127 | if (r < 0) | |
82c64bf5 | 2128 | goto finish; |
a16e1123 | 2129 | |
01e10de3 LP |
2130 | r = unit_deserialize(u, f, fds); |
2131 | if (r < 0) | |
82c64bf5 | 2132 | goto finish; |
a16e1123 LP |
2133 | } |
2134 | ||
10f8e83c | 2135 | finish: |
82c64bf5 LP |
2136 | if (ferror(f)) { |
2137 | r = -EIO; | |
2138 | goto finish; | |
2139 | } | |
a16e1123 | 2140 | |
a7556052 LP |
2141 | assert(m->n_reloading > 0); |
2142 | m->n_reloading --; | |
82c64bf5 LP |
2143 | |
2144 | return r; | |
a16e1123 LP |
2145 | } |
2146 | ||
2147 | int manager_reload(Manager *m) { | |
2148 | int r, q; | |
51d122af ZJS |
2149 | _cleanup_fclose_ FILE *f = NULL; |
2150 | _cleanup_fdset_free_ FDSet *fds = NULL; | |
a16e1123 LP |
2151 | |
2152 | assert(m); | |
2153 | ||
07719a21 LP |
2154 | r = manager_open_serialization(m, &f); |
2155 | if (r < 0) | |
a16e1123 LP |
2156 | return r; |
2157 | ||
a7556052 | 2158 | m->n_reloading ++; |
718db961 | 2159 | bus_manager_send_reloading(m, true); |
38c52d46 | 2160 | |
07719a21 LP |
2161 | fds = fdset_new(); |
2162 | if (!fds) { | |
a7556052 | 2163 | m->n_reloading --; |
51d122af | 2164 | return -ENOMEM; |
a16e1123 LP |
2165 | } |
2166 | ||
b3680f49 | 2167 | r = manager_serialize(m, f, fds, false); |
07719a21 | 2168 | if (r < 0) { |
a7556052 | 2169 | m->n_reloading --; |
51d122af | 2170 | return r; |
38c52d46 | 2171 | } |
a16e1123 LP |
2172 | |
2173 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 2174 | m->n_reloading --; |
51d122af | 2175 | return -errno; |
a16e1123 LP |
2176 | } |
2177 | ||
2178 | /* From here on there is no way back. */ | |
2179 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 2180 | manager_undo_generators(m); |
84e3543e | 2181 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 2182 | |
07719a21 | 2183 | /* Find new unit paths */ |
5a1e9937 LP |
2184 | manager_run_generators(m); |
2185 | ||
07719a21 LP |
2186 | q = lookup_paths_init( |
2187 | &m->lookup_paths, m->running_as, true, | |
2188 | m->generator_unit_path, | |
2189 | m->generator_unit_path_early, | |
2190 | m->generator_unit_path_late); | |
2191 | if (q < 0) | |
2192 | r = q; | |
2193 | ||
5a1e9937 LP |
2194 | manager_build_unit_path_cache(m); |
2195 | ||
a16e1123 | 2196 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
2197 | q = manager_enumerate(m); |
2198 | if (q < 0) | |
a16e1123 LP |
2199 | r = q; |
2200 | ||
2201 | /* Second, deserialize our stored data */ | |
07719a21 LP |
2202 | q = manager_deserialize(m, f, fds); |
2203 | if (q < 0) | |
a16e1123 LP |
2204 | r = q; |
2205 | ||
2206 | fclose(f); | |
2207 | f = NULL; | |
2208 | ||
2209 | /* Third, fire things up! */ | |
07719a21 LP |
2210 | q = manager_coldplug(m); |
2211 | if (q < 0) | |
a16e1123 LP |
2212 | r = q; |
2213 | ||
a7556052 LP |
2214 | assert(m->n_reloading > 0); |
2215 | m->n_reloading--; | |
9f611ad8 | 2216 | |
71445ae7 LP |
2217 | m->send_reloading_done = true; |
2218 | ||
a16e1123 LP |
2219 | return r; |
2220 | } | |
2221 | ||
6084e22e | 2222 | static bool manager_is_booting_or_shutting_down(Manager *m) { |
9e58ff9c LP |
2223 | Unit *u; |
2224 | ||
2225 | assert(m); | |
2226 | ||
2227 | /* Is the initial job still around? */ | |
bacbccb7 | 2228 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
2229 | return true; |
2230 | ||
2231 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
2232 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
2233 | if (u) | |
ac155bb8 | 2234 | return !!u->job; |
9e58ff9c LP |
2235 | |
2236 | return false; | |
2237 | } | |
2238 | ||
c17ec25e MS |
2239 | bool manager_is_reloading_or_reexecuting(Manager *m) { |
2240 | assert(m); | |
2241 | ||
2242 | return m->n_reloading != 0; | |
2243 | } | |
2244 | ||
fdf20a31 | 2245 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
2246 | Unit *u; |
2247 | Iterator i; | |
2248 | ||
2249 | assert(m); | |
2250 | ||
2251 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 2252 | unit_reset_failed(u); |
5632e374 LP |
2253 | } |
2254 | ||
31afa0a4 | 2255 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
2256 | Unit *u; |
2257 | ||
2258 | assert(m); | |
2259 | assert(name); | |
2260 | ||
2261 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
2262 | u = manager_get_unit(m, name); |
2263 | if (!u) | |
8f6df3fa LP |
2264 | return true; |
2265 | ||
31afa0a4 | 2266 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
2267 | } |
2268 | ||
b0c918b9 | 2269 | void manager_check_finished(Manager *m) { |
7ceba241 | 2270 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 2271 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2272 | |
2273 | assert(m); | |
2274 | ||
a0b64226 | 2275 | if (m->n_running_jobs == 0) |
718db961 | 2276 | m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source); |
a0b64226 | 2277 | |
828db5d8 KS |
2278 | if (hashmap_size(m->jobs) > 0) { |
2279 | if (m->jobs_in_progress_event_source) | |
2280 | sd_event_source_set_time(m->jobs_in_progress_event_source, JOBS_IN_PROGRESS_PERIOD_SEC); | |
b0c918b9 | 2281 | return; |
5b176ee0 | 2282 | } |
b0c918b9 | 2283 | |
f2b68789 | 2284 | /* Notify Type=idle units that we are done now */ |
718db961 LP |
2285 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
2286 | manager_close_idle_pipe(m); | |
f2b68789 | 2287 | |
af6da548 LP |
2288 | /* Turn off confirm spawn now */ |
2289 | m->confirm_spawn = false; | |
2290 | ||
f2b68789 | 2291 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2292 | return; |
2293 | ||
2294 | dual_timestamp_get(&m->finish_timestamp); | |
2295 | ||
67445f4e | 2296 | if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { |
e03ae661 | 2297 | |
915b3753 LP |
2298 | /* Note that m->kernel_usec.monotonic is always at 0, |
2299 | * and m->firmware_usec.monotonic and | |
2300 | * m->loader_usec.monotonic should be considered | |
2301 | * negative values. */ | |
2302 | ||
7ceba241 LP |
2303 | firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic; |
2304 | loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic; | |
915b3753 | 2305 | userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; |
7ceba241 | 2306 | total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic; |
18fa6b27 | 2307 | |
e9ddabc2 | 2308 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 | 2309 | |
915b3753 LP |
2310 | kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; |
2311 | initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
18fa6b27 | 2312 | |
81270860 LP |
2313 | if (!log_on_console()) |
2314 | log_struct(LOG_INFO, | |
1ca6783f | 2315 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2316 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2317 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2318 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2319 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2fa4092c LP |
2320 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2321 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
2322 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2323 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2324 | NULL); |
18fa6b27 | 2325 | } else { |
915b3753 | 2326 | kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; |
18fa6b27 LP |
2327 | initrd_usec = 0; |
2328 | ||
81270860 LP |
2329 | if (!log_on_console()) |
2330 | log_struct(LOG_INFO, | |
1ca6783f | 2331 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2332 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, |
2333 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2334 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2fa4092c LP |
2335 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
2336 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
2337 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), | |
81270860 | 2338 | NULL); |
18fa6b27 LP |
2339 | } |
2340 | } else { | |
915b3753 LP |
2341 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
2342 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; | |
877d54e9 | 2343 | |
81270860 LP |
2344 | if (!log_on_console()) |
2345 | log_struct(LOG_INFO, | |
1ca6783f | 2346 | MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), |
81270860 LP |
2347 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, |
2348 | "MESSAGE=Startup finished in %s.", | |
2fa4092c | 2349 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC), |
81270860 | 2350 | NULL); |
18fa6b27 | 2351 | } |
b0c918b9 | 2352 | |
718db961 | 2353 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2354 | |
2355 | sd_notifyf(false, | |
2356 | "READY=1\nSTATUS=Startup finished in %s.", | |
2fa4092c | 2357 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
b0c918b9 LP |
2358 | } |
2359 | ||
07719a21 LP |
2360 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2361 | char *p; | |
2362 | int r; | |
2363 | ||
2364 | assert(m); | |
2365 | assert(generator); | |
2366 | assert(name); | |
2367 | ||
2368 | if (*generator) | |
2369 | return 0; | |
2370 | ||
67445f4e | 2371 | if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) { |
07719a21 LP |
2372 | |
2373 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2374 | if (!p) |
2375 | return log_oom(); | |
07719a21 | 2376 | |
d2e54fae | 2377 | r = mkdir_p_label(p, 0755); |
07719a21 | 2378 | if (r < 0) { |
7ad94c71 ZJS |
2379 | log_error("Failed to create generator directory %s: %s", |
2380 | p, strerror(-r)); | |
07719a21 LP |
2381 | free(p); |
2382 | return r; | |
2383 | } | |
2384 | } else { | |
b7def684 | 2385 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2386 | if (!p) |
2387 | return log_oom(); | |
07719a21 LP |
2388 | |
2389 | if (!mkdtemp(p)) { | |
7ad94c71 ZJS |
2390 | log_error("Failed to create generator directory %s: %m", |
2391 | p); | |
34bf0281 | 2392 | free(p); |
07719a21 LP |
2393 | return -errno; |
2394 | } | |
2395 | } | |
2396 | ||
2397 | *generator = p; | |
2398 | return 0; | |
2399 | } | |
2400 | ||
2401 | static void trim_generator_dir(Manager *m, char **generator) { | |
2402 | assert(m); | |
2403 | assert(generator); | |
2404 | ||
2405 | if (!*generator) | |
2406 | return; | |
2407 | ||
2408 | if (rmdir(*generator) >= 0) { | |
2409 | free(*generator); | |
2410 | *generator = NULL; | |
2411 | } | |
2412 | ||
2413 | return; | |
2414 | } | |
2415 | ||
5a1e9937 | 2416 | void manager_run_generators(Manager *m) { |
718db961 | 2417 | _cleanup_closedir_ DIR *d = NULL; |
5a1e9937 | 2418 | const char *generator_path; |
07719a21 | 2419 | const char *argv[5]; |
07719a21 | 2420 | int r; |
5a1e9937 LP |
2421 | |
2422 | assert(m); | |
2423 | ||
67445f4e | 2424 | generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2425 | d = opendir(generator_path); |
2426 | if (!d) { | |
5a1e9937 LP |
2427 | if (errno == ENOENT) |
2428 | return; | |
2429 | ||
7ad94c71 ZJS |
2430 | log_error("Failed to enumerate generator directory %s: %m", |
2431 | generator_path); | |
5a1e9937 LP |
2432 | return; |
2433 | } | |
2434 | ||
07719a21 LP |
2435 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2436 | if (r < 0) | |
2437 | goto finish; | |
f1d19aa4 | 2438 | |
07719a21 LP |
2439 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2440 | if (r < 0) | |
2441 | goto finish; | |
5a1e9937 | 2442 | |
07719a21 LP |
2443 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2444 | if (r < 0) | |
2445 | goto finish; | |
5a1e9937 | 2446 | |
83cc030f LP |
2447 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2448 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2449 | argv[2] = m->generator_unit_path_early; |
2450 | argv[3] = m->generator_unit_path_late; | |
2451 | argv[4] = NULL; | |
5a1e9937 | 2452 | |
718db961 | 2453 | RUN_WITH_UMASK(0022) |
5c0d398d | 2454 | execute_directory(generator_path, d, (char**) argv); |
5a1e9937 | 2455 | |
718db961 | 2456 | finish: |
07719a21 LP |
2457 | trim_generator_dir(m, &m->generator_unit_path); |
2458 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2459 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2460 | } |
2461 | ||
07719a21 | 2462 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2463 | assert(m); |
07719a21 | 2464 | assert(generator); |
5a1e9937 | 2465 | |
07719a21 | 2466 | if (!*generator) |
5a1e9937 LP |
2467 | return; |
2468 | ||
07719a21 LP |
2469 | strv_remove(m->lookup_paths.unit_path, *generator); |
2470 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2471 | |
07719a21 LP |
2472 | free(*generator); |
2473 | *generator = NULL; | |
2474 | } | |
2475 | ||
2476 | void manager_undo_generators(Manager *m) { | |
2477 | assert(m); | |
2478 | ||
2479 | remove_generator_dir(m, &m->generator_unit_path); | |
2480 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2481 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2482 | } |
2483 | ||
718db961 LP |
2484 | int manager_environment_add(Manager *m, char **minus, char **plus) { |
2485 | char **a = NULL, **b = NULL, **l; | |
97d0e5f8 | 2486 | assert(m); |
bcd8e6d1 | 2487 | |
718db961 | 2488 | l = m->environment; |
bcd8e6d1 | 2489 | |
718db961 LP |
2490 | if (!strv_isempty(minus)) { |
2491 | a = strv_env_delete(l, 1, minus); | |
2492 | if (!a) | |
2493 | return -ENOMEM; | |
2494 | ||
2495 | l = a; | |
2496 | } | |
2497 | ||
2498 | if (!strv_isempty(plus)) { | |
2499 | b = strv_env_merge(2, l, plus); | |
2500 | if (!b) | |
2501 | return -ENOMEM; | |
bcd8e6d1 | 2502 | |
718db961 LP |
2503 | l = b; |
2504 | } | |
2505 | ||
2506 | if (m->environment != l) | |
2507 | strv_free(m->environment); | |
2508 | if (a != l) | |
2509 | strv_free(a); | |
2510 | if (b != l) | |
2511 | strv_free(b); | |
2512 | ||
9d5a3757 | 2513 | m->environment = strv_sort(l); |
97d0e5f8 UTL |
2514 | return 0; |
2515 | } | |
2516 | ||
c93ff2e9 FC |
2517 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2518 | int i; | |
2519 | ||
2520 | assert(m); | |
2521 | ||
2522 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2523 | if (!default_rlimit[i]) |
2524 | continue; | |
c93ff2e9 | 2525 | |
07719a21 LP |
2526 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2527 | if (!m->rlimit[i]) | |
2528 | return -ENOMEM; | |
c93ff2e9 FC |
2529 | } |
2530 | ||
2531 | return 0; | |
2532 | } | |
2533 | ||
4cfa2c99 | 2534 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2535 | Unit *u; |
2536 | ||
2537 | assert(m); | |
2538 | ||
67445f4e | 2539 | if (m->running_as != SYSTEMD_SYSTEM) |
f1dd0c3f LP |
2540 | return; |
2541 | ||
731a676c LP |
2542 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2543 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2544 | log_close_journal(); |
731a676c | 2545 | return; |
f1dd0c3f LP |
2546 | } |
2547 | ||
731a676c LP |
2548 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2549 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2550 | log_close_journal(); |
731a676c LP |
2551 | return; |
2552 | } | |
f1dd0c3f | 2553 | |
731a676c LP |
2554 | /* Hmm, OK, so the socket is fully up and the service is up |
2555 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2556 | log_open(); |
2557 | } | |
2558 | ||
27d340c7 LP |
2559 | void manager_set_show_status(Manager *m, bool b) { |
2560 | assert(m); | |
2561 | ||
67445f4e | 2562 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2563 | return; |
2564 | ||
2565 | m->show_status = b; | |
2566 | ||
2567 | if (b) | |
2568 | touch("/run/systemd/show-status"); | |
2569 | else | |
2570 | unlink("/run/systemd/show-status"); | |
2571 | } | |
2572 | ||
6084e22e | 2573 | static bool manager_get_show_status(Manager *m) { |
27d340c7 LP |
2574 | assert(m); |
2575 | ||
67445f4e | 2576 | if (m->running_as != SYSTEMD_SYSTEM) |
27d340c7 LP |
2577 | return false; |
2578 | ||
31a7eb86 ZJS |
2579 | if (m->no_console_output) |
2580 | return false; | |
2581 | ||
27d340c7 LP |
2582 | if (m->show_status) |
2583 | return true; | |
2584 | ||
2585 | /* If Plymouth is running make sure we show the status, so | |
2586 | * that there's something nice to see when people press Esc */ | |
2587 | ||
2588 | return plymouth_running(); | |
2589 | } | |
68b29a9f | 2590 | |
984a2be4 | 2591 | void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { |
25cee550 MS |
2592 | va_list ap; |
2593 | ||
2594 | if (!manager_get_show_status(m)) | |
2595 | return; | |
2596 | ||
03b717a3 MS |
2597 | /* XXX We should totally drop the check for ephemeral here |
2598 | * and thus effectively make 'Type=idle' pointless. */ | |
2599 | if (ephemeral && m->n_on_console > 0) | |
2600 | return; | |
2601 | ||
25cee550 MS |
2602 | if (!manager_is_booting_or_shutting_down(m)) |
2603 | return; | |
2604 | ||
2605 | va_start(ap, format); | |
984a2be4 | 2606 | status_vprintf(status, true, ephemeral, format, ap); |
25cee550 MS |
2607 | va_end(ap); |
2608 | } | |
2609 | ||
a57f7e2c LP |
2610 | int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) { |
2611 | _cleanup_free_ char *p = NULL; | |
2612 | Unit *found; | |
2613 | ||
2614 | assert(m); | |
2615 | assert(path); | |
2616 | assert(suffix); | |
2617 | assert(_found); | |
2618 | ||
2619 | p = unit_name_from_path(path, suffix); | |
2620 | if (!p) | |
2621 | return -ENOMEM; | |
2622 | ||
2623 | found = manager_get_unit(m, p); | |
2624 | if (!found) { | |
2625 | *_found = NULL; | |
2626 | return 0; | |
2627 | } | |
2628 | ||
2629 | *_found = found; | |
2630 | return 1; | |
2631 | } | |
2632 | ||
2633 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { | |
2634 | char p[strlen(path)+1]; | |
2635 | ||
2636 | assert(m); | |
2637 | assert(path); | |
2638 | ||
2639 | strcpy(p, path); | |
2640 | path_kill_slashes(p); | |
2641 | ||
2642 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
2643 | } |