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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> |
830f6caa LP |
39 | |
40 | #ifdef HAVE_AUDIT | |
4927fcae | 41 | #include <libaudit.h> |
830f6caa | 42 | #endif |
60918275 | 43 | |
877d54e9 LP |
44 | #include "systemd/sd-daemon.h" |
45 | #include "systemd/sd-id128.h" | |
46 | #include "systemd/sd-messages.h" | |
81527be1 | 47 | |
60918275 | 48 | #include "manager.h" |
75778e21 | 49 | #include "transaction.h" |
60918275 LP |
50 | #include "hashmap.h" |
51 | #include "macro.h" | |
52 | #include "strv.h" | |
16354eff | 53 | #include "log.h" |
2a987ee8 | 54 | #include "util.h" |
49e942b2 | 55 | #include "mkdir.h" |
ea430986 | 56 | #include "ratelimit.h" |
8e274523 LP |
57 | #include "cgroup.h" |
58 | #include "mount-setup.h" | |
9e2f7c11 | 59 | #include "unit-name.h" |
4139c1b2 LP |
60 | #include "dbus-unit.h" |
61 | #include "dbus-job.h" | |
1137a57c | 62 | #include "missing.h" |
84e3543e | 63 | #include "path-lookup.h" |
514f4ef5 | 64 | #include "special.h" |
398ef8ba | 65 | #include "bus-errors.h" |
d06dacd0 | 66 | #include "exit-status.h" |
5dc4c17f | 67 | #include "virt.h" |
e96d6be7 | 68 | #include "watchdog.h" |
b59e2465 | 69 | #include "cgroup-util.h" |
9eb977db | 70 | #include "path-util.h" |
60918275 | 71 | |
701cc384 LP |
72 | /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ |
73 | #define GC_QUEUE_ENTRIES_MAX 16 | |
74 | ||
75 | /* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */ | |
94b6dfa2 | 76 | #define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC) |
701cc384 | 77 | |
8c47c732 | 78 | /* Where clients shall send notification messages to */ |
29252e9e | 79 | #define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" |
8c47c732 LP |
80 | |
81 | static int manager_setup_notify(Manager *m) { | |
82 | union { | |
83 | struct sockaddr sa; | |
84 | struct sockaddr_un un; | |
85 | } sa; | |
86 | struct epoll_event ev; | |
29252e9e | 87 | int one = 1; |
8c47c732 LP |
88 | |
89 | assert(m); | |
90 | ||
91 | m->notify_watch.type = WATCH_NOTIFY; | |
29252e9e LP |
92 | m->notify_watch.fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
93 | if (m->notify_watch.fd < 0) { | |
8c47c732 LP |
94 | log_error("Failed to allocate notification socket: %m"); |
95 | return -errno; | |
96 | } | |
97 | ||
98 | zero(sa); | |
99 | sa.sa.sa_family = AF_UNIX; | |
100 | ||
31f92a7d | 101 | if (getpid() != 1 || detect_container(NULL) > 0) |
29252e9e LP |
102 | snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull()); |
103 | else | |
104 | strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); | |
8c47c732 | 105 | |
29252e9e | 106 | sa.un.sun_path[0] = 0; |
1d6702e8 | 107 | |
29252e9e | 108 | if (bind(m->notify_watch.fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { |
8c47c732 LP |
109 | log_error("bind() failed: %m"); |
110 | return -errno; | |
111 | } | |
112 | ||
113 | if (setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) { | |
114 | log_error("SO_PASSCRED failed: %m"); | |
115 | return -errno; | |
116 | } | |
117 | ||
118 | zero(ev); | |
119 | ev.events = EPOLLIN; | |
120 | ev.data.ptr = &m->notify_watch; | |
121 | ||
122 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev) < 0) | |
123 | return -errno; | |
124 | ||
29252e9e LP |
125 | sa.un.sun_path[0] = '@'; |
126 | m->notify_socket = strdup(sa.un.sun_path); | |
127 | if (!m->notify_socket) | |
8c47c732 LP |
128 | return -ENOMEM; |
129 | ||
b2bb3dbe LP |
130 | log_debug("Using notification socket %s", m->notify_socket); |
131 | ||
8c47c732 LP |
132 | return 0; |
133 | } | |
134 | ||
80876c20 | 135 | static int enable_special_signals(Manager *m) { |
4466ee6a | 136 | int fd; |
80876c20 LP |
137 | |
138 | assert(m); | |
139 | ||
a41b539e LP |
140 | /* Enable that we get SIGINT on control-alt-del. In containers |
141 | * this will fail with EPERM, so ignore that. */ | |
142 | if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM) | |
80876c20 LP |
143 | log_warning("Failed to enable ctrl-alt-del handling: %m"); |
144 | ||
a41b539e LP |
145 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
146 | if (fd < 0) { | |
147 | /* Support systems without virtual console */ | |
148 | if (fd != -ENOENT) | |
149 | log_warning("Failed to open /dev/tty0: %m"); | |
150 | } else { | |
80876c20 LP |
151 | /* Enable that we get SIGWINCH on kbrequest */ |
152 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
153 | log_warning("Failed to enable kbrequest handling: %s", strerror(errno)); | |
154 | ||
155 | close_nointr_nofail(fd); | |
156 | } | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
ce578209 | 161 | static int manager_setup_signals(Manager *m) { |
9152c765 LP |
162 | sigset_t mask; |
163 | struct epoll_event ev; | |
57c0c30e | 164 | struct sigaction sa; |
60918275 | 165 | |
ce578209 LP |
166 | assert(m); |
167 | ||
57c0c30e LP |
168 | /* We are not interested in SIGSTOP and friends. */ |
169 | zero(sa); | |
170 | sa.sa_handler = SIG_DFL; | |
171 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
172 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
173 | ||
ce578209 | 174 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
175 | |
176 | sigset_add_many(&mask, | |
177 | SIGCHLD, /* Child died */ | |
178 | SIGTERM, /* Reexecute daemon */ | |
179 | SIGHUP, /* Reload configuration */ | |
180 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
181 | SIGUSR2, /* systemd: dump status */ | |
182 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
183 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
184 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
185 | SIGRTMIN+0, /* systemd: start default.target */ | |
0003d1ab | 186 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
187 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
188 | SIGRTMIN+3, /* systemd: start halt.target */ | |
189 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
190 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab LP |
191 | SIGRTMIN+6, /* systemd: start kexec.target */ |
192 | SIGRTMIN+13, /* systemd: Immediate halt */ | |
193 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
194 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
195 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
0658666b LP |
196 | SIGRTMIN+20, /* systemd: enable status messages */ |
197 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
198 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
199 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
4cfa2c99 | 200 | SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ |
253ee27a LP |
201 | SIGRTMIN+27, /* systemd: set log target to console */ |
202 | SIGRTMIN+28, /* systemd: set log target to kmsg */ | |
203 | SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ | |
7d793605 | 204 | -1); |
ce578209 LP |
205 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
206 | ||
ef734fd6 | 207 | m->signal_watch.type = WATCH_SIGNAL; |
ce578209 LP |
208 | if ((m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC)) < 0) |
209 | return -errno; | |
210 | ||
211 | zero(ev); | |
212 | ev.events = EPOLLIN; | |
213 | ev.data.ptr = &m->signal_watch; | |
214 | ||
215 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0) | |
216 | return -errno; | |
217 | ||
a3d4e06d | 218 | if (m->running_as == MANAGER_SYSTEM) |
80876c20 | 219 | return enable_special_signals(m); |
e1414003 | 220 | |
ce578209 LP |
221 | return 0; |
222 | } | |
223 | ||
71ecc858 LP |
224 | static void manager_strip_environment(Manager *m) { |
225 | assert(m); | |
226 | ||
227 | /* Remove variables from the inherited set that are part of | |
228 | * the container interface: | |
229 | * http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface */ | |
230 | strv_remove_prefix(m->environment, "container="); | |
231 | strv_remove_prefix(m->environment, "container_"); | |
232 | ||
233 | /* Remove variables from the inherited set that are part of | |
234 | * the initrd interface: | |
235 | * http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface */ | |
236 | strv_remove_prefix(m->environment, "RD_"); | |
237 | } | |
238 | ||
9e58ff9c | 239 | int manager_new(ManagerRunningAs running_as, Manager **_m) { |
ce578209 | 240 | Manager *m; |
8e274523 LP |
241 | int r = -ENOMEM; |
242 | ||
243 | assert(_m); | |
a5dab5ce LP |
244 | assert(running_as >= 0); |
245 | assert(running_as < _MANAGER_RUNNING_AS_MAX); | |
ce578209 | 246 | |
60918275 | 247 | if (!(m = new0(Manager, 1))) |
8e274523 | 248 | return -ENOMEM; |
60918275 | 249 | |
63983207 | 250 | dual_timestamp_get(&m->startup_timestamp); |
e537352b | 251 | |
a5dab5ce | 252 | m->running_as = running_as; |
cbd37330 | 253 | m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; |
a16e1123 | 254 | m->exit_code = _MANAGER_EXIT_CODE_INVALID; |
33be102a | 255 | m->pin_cgroupfs_fd = -1; |
f2b68789 | 256 | m->idle_pipe[0] = m->idle_pipe[1] = -1; |
80876c20 | 257 | |
4927fcae LP |
258 | #ifdef HAVE_AUDIT |
259 | m->audit_fd = -1; | |
260 | #endif | |
261 | ||
4e434314 | 262 | m->signal_watch.fd = m->mount_watch.fd = m->udev_watch.fd = m->epoll_fd = m->dev_autofs_fd = m->swap_watch.fd = -1; |
ea430986 | 263 | m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */ |
9152c765 | 264 | |
71ecc858 LP |
265 | m->environment = strv_copy(environ); |
266 | if (!m->environment) | |
1137a57c LP |
267 | goto fail; |
268 | ||
71ecc858 LP |
269 | manager_strip_environment(m); |
270 | ||
88f06645 LP |
271 | if (running_as == MANAGER_SYSTEM) { |
272 | m->default_controllers = strv_new("cpu", NULL); | |
273 | if (!m->default_controllers) | |
274 | goto fail; | |
275 | } | |
06d4c99a | 276 | |
87f0e418 | 277 | if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) |
60918275 LP |
278 | goto fail; |
279 | ||
280 | if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func))) | |
281 | goto fail; | |
282 | ||
9152c765 LP |
283 | if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func))) |
284 | goto fail; | |
285 | ||
8e274523 LP |
286 | if (!(m->cgroup_bondings = hashmap_new(string_hash_func, string_compare_func))) |
287 | goto fail; | |
288 | ||
05e343b7 LP |
289 | if (!(m->watch_bus = hashmap_new(string_hash_func, string_compare_func))) |
290 | goto fail; | |
291 | ||
9152c765 LP |
292 | if ((m->epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0) |
293 | goto fail; | |
294 | ||
8e274523 LP |
295 | if ((r = manager_setup_signals(m)) < 0) |
296 | goto fail; | |
297 | ||
8e274523 | 298 | if ((r = manager_setup_cgroup(m)) < 0) |
9152c765 LP |
299 | goto fail; |
300 | ||
8c47c732 LP |
301 | if ((r = manager_setup_notify(m)) < 0) |
302 | goto fail; | |
303 | ||
f278026d | 304 | /* Try to connect to the busses, if possible. */ |
3996fbe2 | 305 | if ((r = bus_init(m, running_as != MANAGER_SYSTEM)) < 0) |
ea430986 LP |
306 | goto fail; |
307 | ||
e543deae | 308 | #ifdef HAVE_AUDIT |
5a8d081c JN |
309 | if ((m->audit_fd = audit_open()) < 0 && |
310 | /* If the kernel lacks netlink or audit support, | |
311 | * don't worry about it. */ | |
312 | errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT) | |
4927fcae | 313 | log_error("Failed to connect to audit log: %m"); |
e543deae | 314 | #endif |
4927fcae | 315 | |
72bc8d00 LP |
316 | m->taint_usr = dir_is_empty("/usr") > 0; |
317 | ||
8e274523 LP |
318 | *_m = m; |
319 | return 0; | |
60918275 LP |
320 | |
321 | fail: | |
322 | manager_free(m); | |
8e274523 | 323 | return r; |
60918275 LP |
324 | } |
325 | ||
23a177ef | 326 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 327 | Unit *u; |
23a177ef LP |
328 | unsigned n = 0; |
329 | ||
330 | assert(m); | |
331 | ||
595ed347 MS |
332 | while ((u = m->cleanup_queue)) { |
333 | assert(u->in_cleanup_queue); | |
23a177ef | 334 | |
595ed347 | 335 | unit_free(u); |
23a177ef LP |
336 | n++; |
337 | } | |
338 | ||
339 | return n; | |
340 | } | |
341 | ||
eced69b3 | 342 | enum { |
35b8ca3a | 343 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
344 | GC_OFFSET_UNSURE, /* No clue */ |
345 | GC_OFFSET_GOOD, /* We still need this unit */ | |
346 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
347 | _GC_OFFSET_MAX | |
348 | }; | |
349 | ||
350 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { | |
701cc384 LP |
351 | Iterator i; |
352 | Unit *other; | |
eced69b3 | 353 | bool is_bad; |
701cc384 LP |
354 | |
355 | assert(u); | |
356 | ||
ac155bb8 MS |
357 | if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || |
358 | u->gc_marker == gc_marker + GC_OFFSET_BAD || | |
359 | u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) | |
701cc384 LP |
360 | return; |
361 | ||
ac155bb8 | 362 | if (u->in_cleanup_queue) |
701cc384 LP |
363 | goto bad; |
364 | ||
365 | if (unit_check_gc(u)) | |
366 | goto good; | |
367 | ||
ac155bb8 | 368 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
369 | |
370 | is_bad = true; | |
371 | ||
ac155bb8 | 372 | SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
373 | unit_gc_sweep(other, gc_marker); |
374 | ||
ac155bb8 | 375 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 376 | goto good; |
eced69b3 | 377 | |
ac155bb8 | 378 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 379 | is_bad = false; |
701cc384 LP |
380 | } |
381 | ||
eced69b3 LP |
382 | if (is_bad) |
383 | goto bad; | |
384 | ||
385 | /* We were unable to find anything out about this entry, so | |
386 | * let's investigate it later */ | |
ac155bb8 | 387 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
388 | unit_add_to_gc_queue(u); |
389 | return; | |
390 | ||
701cc384 | 391 | bad: |
eced69b3 LP |
392 | /* We definitely know that this one is not useful anymore, so |
393 | * let's mark it for deletion */ | |
ac155bb8 | 394 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 395 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
396 | return; |
397 | ||
398 | good: | |
ac155bb8 | 399 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; |
701cc384 LP |
400 | } |
401 | ||
402 | static unsigned manager_dispatch_gc_queue(Manager *m) { | |
595ed347 | 403 | Unit *u; |
701cc384 | 404 | unsigned n = 0; |
eced69b3 | 405 | unsigned gc_marker; |
701cc384 LP |
406 | |
407 | assert(m); | |
408 | ||
409 | if ((m->n_in_gc_queue < GC_QUEUE_ENTRIES_MAX) && | |
410 | (m->gc_queue_timestamp <= 0 || | |
411 | (m->gc_queue_timestamp + GC_QUEUE_USEC_MAX) > now(CLOCK_MONOTONIC))) | |
412 | return 0; | |
413 | ||
414 | log_debug("Running GC..."); | |
415 | ||
eced69b3 LP |
416 | m->gc_marker += _GC_OFFSET_MAX; |
417 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 418 | m->gc_marker = 1; |
701cc384 | 419 | |
eced69b3 LP |
420 | gc_marker = m->gc_marker; |
421 | ||
595ed347 MS |
422 | while ((u = m->gc_queue)) { |
423 | assert(u->in_gc_queue); | |
701cc384 | 424 | |
595ed347 | 425 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 426 | |
595ed347 MS |
427 | LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); |
428 | u->in_gc_queue = false; | |
701cc384 LP |
429 | |
430 | n++; | |
431 | ||
595ed347 MS |
432 | if (u->gc_marker == gc_marker + GC_OFFSET_BAD || |
433 | u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { | |
434 | log_debug("Collecting %s", u->id); | |
435 | u->gc_marker = gc_marker + GC_OFFSET_BAD; | |
436 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
437 | } |
438 | } | |
439 | ||
440 | m->n_in_gc_queue = 0; | |
441 | m->gc_queue_timestamp = 0; | |
442 | ||
443 | return n; | |
444 | } | |
445 | ||
a16e1123 | 446 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 447 | Unit *u; |
60918275 LP |
448 | |
449 | assert(m); | |
450 | ||
87f0e418 LP |
451 | while ((u = hashmap_first(m->units))) |
452 | unit_free(u); | |
964e0949 LP |
453 | |
454 | manager_dispatch_cleanup_queue(m); | |
455 | ||
456 | assert(!m->load_queue); | |
457 | assert(!m->run_queue); | |
458 | assert(!m->dbus_unit_queue); | |
459 | assert(!m->dbus_job_queue); | |
460 | assert(!m->cleanup_queue); | |
461 | assert(!m->gc_queue); | |
462 | ||
964e0949 LP |
463 | assert(hashmap_isempty(m->jobs)); |
464 | assert(hashmap_isempty(m->units)); | |
a16e1123 LP |
465 | } |
466 | ||
467 | void manager_free(Manager *m) { | |
468 | UnitType c; | |
c93ff2e9 | 469 | int i; |
87f0e418 | 470 | |
a16e1123 LP |
471 | assert(m); |
472 | ||
473 | manager_clear_jobs_and_units(m); | |
23a177ef | 474 | |
7824bbeb LP |
475 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
476 | if (unit_vtable[c]->shutdown) | |
477 | unit_vtable[c]->shutdown(m); | |
478 | ||
a16e1123 LP |
479 | /* If we reexecute ourselves, we keep the root cgroup |
480 | * around */ | |
c6c18be3 | 481 | manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE); |
8e274523 | 482 | |
5a1e9937 LP |
483 | manager_undo_generators(m); |
484 | ||
5e8d1c9a | 485 | bus_done(m); |
ea430986 | 486 | |
87f0e418 | 487 | hashmap_free(m->units); |
60918275 | 488 | hashmap_free(m->jobs); |
9152c765 | 489 | hashmap_free(m->watch_pids); |
05e343b7 | 490 | hashmap_free(m->watch_bus); |
9152c765 LP |
491 | |
492 | if (m->epoll_fd >= 0) | |
a16e1123 | 493 | close_nointr_nofail(m->epoll_fd); |
acbb0225 | 494 | if (m->signal_watch.fd >= 0) |
a16e1123 | 495 | close_nointr_nofail(m->signal_watch.fd); |
8c47c732 LP |
496 | if (m->notify_watch.fd >= 0) |
497 | close_nointr_nofail(m->notify_watch.fd); | |
60918275 | 498 | |
4927fcae LP |
499 | #ifdef HAVE_AUDIT |
500 | if (m->audit_fd >= 0) | |
501 | audit_close(m->audit_fd); | |
502 | #endif | |
503 | ||
c952c6ec LP |
504 | free(m->notify_socket); |
505 | ||
84e3543e | 506 | lookup_paths_free(&m->lookup_paths); |
1137a57c | 507 | strv_free(m->environment); |
036643a2 | 508 | |
06d4c99a LP |
509 | strv_free(m->default_controllers); |
510 | ||
8e274523 | 511 | hashmap_free(m->cgroup_bondings); |
c6c18be3 | 512 | set_free_free(m->unit_path_cache); |
33be102a | 513 | |
f2b68789 LP |
514 | close_pipe(m->idle_pipe); |
515 | ||
664f88a7 LP |
516 | free(m->switch_root); |
517 | free(m->switch_root_init); | |
518 | ||
c93ff2e9 FC |
519 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
520 | free(m->rlimit[i]); | |
521 | ||
60918275 LP |
522 | free(m); |
523 | } | |
524 | ||
a16e1123 LP |
525 | int manager_enumerate(Manager *m) { |
526 | int r = 0, q; | |
f50e0a01 | 527 | UnitType c; |
f50e0a01 LP |
528 | |
529 | assert(m); | |
530 | ||
a16e1123 LP |
531 | /* Let's ask every type to load all units from disk/kernel |
532 | * that it might know */ | |
f50e0a01 LP |
533 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
534 | if (unit_vtable[c]->enumerate) | |
a16e1123 LP |
535 | if ((q = unit_vtable[c]->enumerate(m)) < 0) |
536 | r = q; | |
f50e0a01 LP |
537 | |
538 | manager_dispatch_load_queue(m); | |
a16e1123 LP |
539 | return r; |
540 | } | |
541 | ||
542 | int manager_coldplug(Manager *m) { | |
543 | int r = 0, q; | |
544 | Iterator i; | |
545 | Unit *u; | |
546 | char *k; | |
547 | ||
548 | assert(m); | |
f50e0a01 LP |
549 | |
550 | /* Then, let's set up their initial state. */ | |
551 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
552 | ||
553 | /* ignore aliases */ | |
ac155bb8 | 554 | if (u->id != k) |
f50e0a01 LP |
555 | continue; |
556 | ||
cca098b0 LP |
557 | if ((q = unit_coldplug(u)) < 0) |
558 | r = q; | |
f50e0a01 LP |
559 | } |
560 | ||
a16e1123 LP |
561 | return r; |
562 | } | |
563 | ||
fe51822e LP |
564 | static void manager_build_unit_path_cache(Manager *m) { |
565 | char **i; | |
566 | DIR *d = NULL; | |
567 | int r; | |
568 | ||
569 | assert(m); | |
570 | ||
571 | set_free_free(m->unit_path_cache); | |
572 | ||
573 | if (!(m->unit_path_cache = set_new(string_hash_func, string_compare_func))) { | |
574 | log_error("Failed to allocate unit path cache."); | |
575 | return; | |
576 | } | |
577 | ||
578 | /* This simply builds a list of files we know exist, so that | |
579 | * we don't always have to go to disk */ | |
580 | ||
581 | STRV_FOREACH(i, m->lookup_paths.unit_path) { | |
582 | struct dirent *de; | |
583 | ||
584 | if (!(d = opendir(*i))) { | |
585 | log_error("Failed to open directory: %m"); | |
586 | continue; | |
587 | } | |
588 | ||
589 | while ((de = readdir(d))) { | |
590 | char *p; | |
591 | ||
592 | if (ignore_file(de->d_name)) | |
593 | continue; | |
594 | ||
b7def684 | 595 | p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL); |
44d91056 | 596 | if (!p) { |
fe51822e LP |
597 | r = -ENOMEM; |
598 | goto fail; | |
599 | } | |
600 | ||
601 | if ((r = set_put(m->unit_path_cache, p)) < 0) { | |
602 | free(p); | |
603 | goto fail; | |
604 | } | |
605 | } | |
606 | ||
607 | closedir(d); | |
608 | d = NULL; | |
609 | } | |
610 | ||
611 | return; | |
612 | ||
613 | fail: | |
614 | log_error("Failed to build unit path cache: %s", strerror(-r)); | |
615 | ||
616 | set_free_free(m->unit_path_cache); | |
617 | m->unit_path_cache = NULL; | |
618 | ||
619 | if (d) | |
620 | closedir(d); | |
621 | } | |
622 | ||
a16e1123 LP |
623 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
624 | int r, q; | |
625 | ||
626 | assert(m); | |
627 | ||
5a1e9937 LP |
628 | manager_run_generators(m); |
629 | ||
07719a21 LP |
630 | r = lookup_paths_init( |
631 | &m->lookup_paths, m->running_as, true, | |
632 | m->generator_unit_path, | |
633 | m->generator_unit_path_early, | |
634 | m->generator_unit_path_late); | |
635 | if (r < 0) | |
636 | return r; | |
637 | ||
fe51822e LP |
638 | manager_build_unit_path_cache(m); |
639 | ||
9f611ad8 LP |
640 | /* If we will deserialize make sure that during enumeration |
641 | * this is already known, so we increase the counter here | |
642 | * already */ | |
643 | if (serialization) | |
a7556052 | 644 | m->n_reloading ++; |
9f611ad8 | 645 | |
a16e1123 LP |
646 | /* First, enumerate what we can from all config files */ |
647 | r = manager_enumerate(m); | |
648 | ||
649 | /* Second, deserialize if there is something to deserialize */ | |
07719a21 LP |
650 | if (serialization) { |
651 | q = manager_deserialize(m, serialization, fds); | |
652 | if (q < 0) | |
a16e1123 | 653 | r = q; |
07719a21 | 654 | } |
a16e1123 LP |
655 | |
656 | /* Third, fire things up! */ | |
07719a21 LP |
657 | q = manager_coldplug(m); |
658 | if (q < 0) | |
a16e1123 LP |
659 | r = q; |
660 | ||
9f611ad8 | 661 | if (serialization) { |
a7556052 LP |
662 | assert(m->n_reloading > 0); |
663 | m->n_reloading --; | |
9f611ad8 LP |
664 | } |
665 | ||
a16e1123 | 666 | return r; |
f50e0a01 LP |
667 | } |
668 | ||
398ef8ba | 669 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) { |
e5b5ae50 | 670 | int r; |
7527cb52 | 671 | Transaction *tr; |
e5b5ae50 LP |
672 | |
673 | assert(m); | |
674 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 675 | assert(unit); |
e5b5ae50 | 676 | assert(mode < _JOB_MODE_MAX); |
60918275 | 677 | |
398ef8ba LP |
678 | if (mode == JOB_ISOLATE && type != JOB_START) { |
679 | dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start."); | |
c497c7a9 | 680 | return -EINVAL; |
398ef8ba | 681 | } |
c497c7a9 | 682 | |
ac155bb8 | 683 | if (mode == JOB_ISOLATE && !unit->allow_isolate) { |
2528a7a6 LP |
684 | dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
685 | return -EPERM; | |
686 | } | |
687 | ||
ac155bb8 | 688 | log_debug("Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); |
9f04bd52 | 689 | |
e0209d83 MS |
690 | job_type_collapse(&type, unit); |
691 | ||
7527cb52 MS |
692 | tr = transaction_new(); |
693 | if (!tr) | |
694 | return -ENOMEM; | |
11dd41ce | 695 | |
7527cb52 MS |
696 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false, |
697 | mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, | |
b94fbd30 | 698 | mode == JOB_IGNORE_DEPENDENCIES, e); |
7527cb52 MS |
699 | if (r < 0) |
700 | goto tr_abort; | |
c497c7a9 | 701 | |
7527cb52 MS |
702 | if (mode == JOB_ISOLATE) { |
703 | r = transaction_add_isolate_jobs(tr, m); | |
704 | if (r < 0) | |
705 | goto tr_abort; | |
706 | } | |
707 | ||
708 | r = transaction_activate(tr, m, mode, e); | |
709 | if (r < 0) | |
710 | goto tr_abort; | |
e5b5ae50 | 711 | |
b94fbd30 | 712 | log_debug("Enqueued job %s/%s as %u", unit->id, job_type_to_string(type), (unsigned) tr->anchor_job->id); |
f50e0a01 | 713 | |
e5b5ae50 | 714 | if (_ret) |
b94fbd30 | 715 | *_ret = tr->anchor_job; |
60918275 | 716 | |
7527cb52 | 717 | transaction_free(tr); |
e5b5ae50 | 718 | return 0; |
7527cb52 MS |
719 | |
720 | tr_abort: | |
721 | transaction_abort(tr); | |
722 | transaction_free(tr); | |
723 | return r; | |
e5b5ae50 | 724 | } |
60918275 | 725 | |
398ef8ba | 726 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) { |
28247076 LP |
727 | Unit *unit; |
728 | int r; | |
729 | ||
730 | assert(m); | |
731 | assert(type < _JOB_TYPE_MAX); | |
732 | assert(name); | |
733 | assert(mode < _JOB_MODE_MAX); | |
734 | ||
398ef8ba | 735 | if ((r = manager_load_unit(m, name, NULL, NULL, &unit)) < 0) |
28247076 LP |
736 | return r; |
737 | ||
398ef8ba | 738 | return manager_add_job(m, type, unit, mode, override, e, _ret); |
28247076 LP |
739 | } |
740 | ||
60918275 LP |
741 | Job *manager_get_job(Manager *m, uint32_t id) { |
742 | assert(m); | |
743 | ||
744 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
745 | } | |
746 | ||
87f0e418 | 747 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
748 | assert(m); |
749 | assert(name); | |
750 | ||
87f0e418 | 751 | return hashmap_get(m->units, name); |
60918275 LP |
752 | } |
753 | ||
c1e1601e | 754 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 755 | Unit *u; |
c1e1601e | 756 | unsigned n = 0; |
60918275 LP |
757 | |
758 | assert(m); | |
759 | ||
223dabab LP |
760 | /* Make sure we are not run recursively */ |
761 | if (m->dispatching_load_queue) | |
c1e1601e | 762 | return 0; |
223dabab LP |
763 | |
764 | m->dispatching_load_queue = true; | |
765 | ||
87f0e418 | 766 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
767 | * tries to load its data until the queue is empty */ |
768 | ||
595ed347 MS |
769 | while ((u = m->load_queue)) { |
770 | assert(u->in_load_queue); | |
034c6ed7 | 771 | |
595ed347 | 772 | unit_load(u); |
c1e1601e | 773 | n++; |
60918275 LP |
774 | } |
775 | ||
223dabab | 776 | m->dispatching_load_queue = false; |
c1e1601e | 777 | return n; |
60918275 LP |
778 | } |
779 | ||
398ef8ba | 780 | int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
87f0e418 | 781 | Unit *ret; |
7d17cfbc | 782 | UnitType t; |
60918275 LP |
783 | int r; |
784 | ||
785 | assert(m); | |
9e2f7c11 | 786 | assert(name || path); |
60918275 | 787 | |
db06e3b6 LP |
788 | /* This will prepare the unit for loading, but not actually |
789 | * load anything from disk. */ | |
0301abf4 | 790 | |
398ef8ba LP |
791 | if (path && !is_path(path)) { |
792 | dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path); | |
9e2f7c11 | 793 | return -EINVAL; |
398ef8ba | 794 | } |
9e2f7c11 LP |
795 | |
796 | if (!name) | |
9eb977db | 797 | name = path_get_file_name(path); |
9e2f7c11 | 798 | |
7d17cfbc MS |
799 | t = unit_name_to_type(name); |
800 | ||
5f739699 | 801 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) { |
398ef8ba | 802 | dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); |
9e2f7c11 | 803 | return -EINVAL; |
398ef8ba | 804 | } |
60918275 | 805 | |
7d17cfbc MS |
806 | ret = manager_get_unit(m, name); |
807 | if (ret) { | |
034c6ed7 | 808 | *_ret = ret; |
413d6313 | 809 | return 1; |
034c6ed7 | 810 | } |
60918275 | 811 | |
7d17cfbc MS |
812 | ret = unit_new(m, unit_vtable[t]->object_size); |
813 | if (!ret) | |
60918275 LP |
814 | return -ENOMEM; |
815 | ||
7d17cfbc | 816 | if (path) { |
ac155bb8 MS |
817 | ret->fragment_path = strdup(path); |
818 | if (!ret->fragment_path) { | |
0301abf4 LP |
819 | unit_free(ret); |
820 | return -ENOMEM; | |
821 | } | |
7d17cfbc | 822 | } |
0301abf4 | 823 | |
87f0e418 LP |
824 | if ((r = unit_add_name(ret, name)) < 0) { |
825 | unit_free(ret); | |
1ffba6fe | 826 | return r; |
60918275 LP |
827 | } |
828 | ||
87f0e418 | 829 | unit_add_to_load_queue(ret); |
c1e1601e | 830 | unit_add_to_dbus_queue(ret); |
949061f0 | 831 | unit_add_to_gc_queue(ret); |
c1e1601e | 832 | |
db06e3b6 LP |
833 | if (_ret) |
834 | *_ret = ret; | |
835 | ||
836 | return 0; | |
837 | } | |
838 | ||
398ef8ba | 839 | int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { |
db06e3b6 LP |
840 | int r; |
841 | ||
842 | assert(m); | |
843 | ||
844 | /* This will load the service information files, but not actually | |
845 | * start any services or anything. */ | |
846 | ||
398ef8ba | 847 | if ((r = manager_load_unit_prepare(m, name, path, e, _ret)) != 0) |
db06e3b6 LP |
848 | return r; |
849 | ||
f50e0a01 | 850 | manager_dispatch_load_queue(m); |
60918275 | 851 | |
9e2f7c11 | 852 | if (_ret) |
413d6313 | 853 | *_ret = unit_follow_merge(*_ret); |
9e2f7c11 | 854 | |
60918275 LP |
855 | return 0; |
856 | } | |
a66d02c3 | 857 | |
cea8e32e | 858 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 859 | Iterator i; |
a66d02c3 LP |
860 | Job *j; |
861 | ||
862 | assert(s); | |
863 | assert(f); | |
864 | ||
034c6ed7 | 865 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 866 | job_dump(j, f, prefix); |
a66d02c3 LP |
867 | } |
868 | ||
87f0e418 | 869 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 870 | Iterator i; |
87f0e418 | 871 | Unit *u; |
11dd41ce | 872 | const char *t; |
a66d02c3 LP |
873 | |
874 | assert(s); | |
875 | assert(f); | |
876 | ||
87f0e418 | 877 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 878 | if (u->id == t) |
87f0e418 | 879 | unit_dump(u, f, prefix); |
a66d02c3 | 880 | } |
7fad411c LP |
881 | |
882 | void manager_clear_jobs(Manager *m) { | |
883 | Job *j; | |
884 | ||
885 | assert(m); | |
886 | ||
7fad411c | 887 | while ((j = hashmap_first(m->jobs))) |
5273510e MS |
888 | /* No need to recurse. We're cancelling all jobs. */ |
889 | job_finish_and_invalidate(j, JOB_CANCELED, false); | |
7fad411c | 890 | } |
83c60c9f | 891 | |
c1e1601e | 892 | unsigned manager_dispatch_run_queue(Manager *m) { |
83c60c9f | 893 | Job *j; |
c1e1601e | 894 | unsigned n = 0; |
83c60c9f | 895 | |
034c6ed7 | 896 | if (m->dispatching_run_queue) |
c1e1601e | 897 | return 0; |
034c6ed7 LP |
898 | |
899 | m->dispatching_run_queue = true; | |
9152c765 | 900 | |
034c6ed7 | 901 | while ((j = m->run_queue)) { |
ac1135be | 902 | assert(j->installed); |
034c6ed7 LP |
903 | assert(j->in_run_queue); |
904 | ||
905 | job_run_and_invalidate(j); | |
c1e1601e | 906 | n++; |
9152c765 | 907 | } |
034c6ed7 LP |
908 | |
909 | m->dispatching_run_queue = false; | |
c1e1601e LP |
910 | return n; |
911 | } | |
912 | ||
913 | unsigned manager_dispatch_dbus_queue(Manager *m) { | |
914 | Job *j; | |
595ed347 | 915 | Unit *u; |
c1e1601e LP |
916 | unsigned n = 0; |
917 | ||
918 | assert(m); | |
919 | ||
920 | if (m->dispatching_dbus_queue) | |
921 | return 0; | |
922 | ||
923 | m->dispatching_dbus_queue = true; | |
924 | ||
595ed347 MS |
925 | while ((u = m->dbus_unit_queue)) { |
926 | assert(u->in_dbus_queue); | |
c1e1601e | 927 | |
595ed347 | 928 | bus_unit_send_change_signal(u); |
c1e1601e LP |
929 | n++; |
930 | } | |
931 | ||
932 | while ((j = m->dbus_job_queue)) { | |
933 | assert(j->in_dbus_queue); | |
934 | ||
935 | bus_job_send_change_signal(j); | |
936 | n++; | |
937 | } | |
938 | ||
939 | m->dispatching_dbus_queue = false; | |
940 | return n; | |
9152c765 LP |
941 | } |
942 | ||
8c47c732 LP |
943 | static int manager_process_notify_fd(Manager *m) { |
944 | ssize_t n; | |
945 | ||
946 | assert(m); | |
947 | ||
948 | for (;;) { | |
949 | char buf[4096]; | |
950 | struct msghdr msghdr; | |
951 | struct iovec iovec; | |
952 | struct ucred *ucred; | |
953 | union { | |
954 | struct cmsghdr cmsghdr; | |
955 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred))]; | |
956 | } control; | |
957 | Unit *u; | |
958 | char **tags; | |
959 | ||
960 | zero(iovec); | |
961 | iovec.iov_base = buf; | |
962 | iovec.iov_len = sizeof(buf)-1; | |
963 | ||
964 | zero(control); | |
965 | zero(msghdr); | |
966 | msghdr.msg_iov = &iovec; | |
967 | msghdr.msg_iovlen = 1; | |
968 | msghdr.msg_control = &control; | |
969 | msghdr.msg_controllen = sizeof(control); | |
970 | ||
971 | if ((n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT)) <= 0) { | |
972 | if (n >= 0) | |
973 | return -EIO; | |
974 | ||
f6144808 | 975 | if (errno == EAGAIN || errno == EINTR) |
8c47c732 LP |
976 | break; |
977 | ||
978 | return -errno; | |
979 | } | |
980 | ||
981 | if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) || | |
982 | control.cmsghdr.cmsg_level != SOL_SOCKET || | |
983 | control.cmsghdr.cmsg_type != SCM_CREDENTIALS || | |
984 | control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) { | |
985 | log_warning("Received notify message without credentials. Ignoring."); | |
986 | continue; | |
987 | } | |
988 | ||
989 | ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr); | |
990 | ||
c6c18be3 | 991 | if (!(u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid)))) |
8c47c732 LP |
992 | if (!(u = cgroup_unit_by_pid(m, ucred->pid))) { |
993 | log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid); | |
994 | continue; | |
995 | } | |
996 | ||
8c40acf7 LP |
997 | assert((size_t) n < sizeof(buf)); |
998 | buf[n] = 0; | |
8c47c732 LP |
999 | if (!(tags = strv_split(buf, "\n\r"))) |
1000 | return -ENOMEM; | |
1001 | ||
ac155bb8 | 1002 | log_debug("Got notification message for unit %s", u->id); |
8c47c732 LP |
1003 | |
1004 | if (UNIT_VTABLE(u)->notify_message) | |
c952c6ec | 1005 | UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); |
8c47c732 LP |
1006 | |
1007 | strv_free(tags); | |
1008 | } | |
1009 | ||
1010 | return 0; | |
1011 | } | |
1012 | ||
034c6ed7 | 1013 | static int manager_dispatch_sigchld(Manager *m) { |
9152c765 LP |
1014 | assert(m); |
1015 | ||
1016 | for (;;) { | |
1017 | siginfo_t si; | |
87f0e418 | 1018 | Unit *u; |
8c47c732 | 1019 | int r; |
9152c765 LP |
1020 | |
1021 | zero(si); | |
4112df16 LP |
1022 | |
1023 | /* First we call waitd() for a PID and do not reap the | |
1024 | * zombie. That way we can still access /proc/$PID for | |
1025 | * it while it is a zombie. */ | |
1026 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { | |
acbb0225 LP |
1027 | |
1028 | if (errno == ECHILD) | |
1029 | break; | |
1030 | ||
4112df16 LP |
1031 | if (errno == EINTR) |
1032 | continue; | |
1033 | ||
9152c765 | 1034 | return -errno; |
acbb0225 | 1035 | } |
9152c765 | 1036 | |
4112df16 | 1037 | if (si.si_pid <= 0) |
9152c765 LP |
1038 | break; |
1039 | ||
15d5d9d9 | 1040 | if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { |
4112df16 LP |
1041 | char *name = NULL; |
1042 | ||
87d2c1ff | 1043 | get_process_comm(si.si_pid, &name); |
bb00e604 | 1044 | log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); |
4112df16 LP |
1045 | free(name); |
1046 | } | |
1047 | ||
8c47c732 LP |
1048 | /* Let's flush any message the dying child might still |
1049 | * have queued for us. This ensures that the process | |
1050 | * still exists in /proc so that we can figure out | |
1051 | * which cgroup and hence unit it belongs to. */ | |
1052 | if ((r = manager_process_notify_fd(m)) < 0) | |
1053 | return r; | |
1054 | ||
1055 | /* And now figure out the unit this belongs to */ | |
c6c18be3 | 1056 | if (!(u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid)))) |
8c47c732 LP |
1057 | u = cgroup_unit_by_pid(m, si.si_pid); |
1058 | ||
4112df16 LP |
1059 | /* And now, we actually reap the zombie. */ |
1060 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
1061 | if (errno == EINTR) | |
1062 | continue; | |
1063 | ||
1064 | return -errno; | |
1065 | } | |
1066 | ||
034c6ed7 LP |
1067 | if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED) |
1068 | continue; | |
1069 | ||
bb00e604 LP |
1070 | log_debug("Child %lu died (code=%s, status=%i/%s)", |
1071 | (long unsigned) si.si_pid, | |
4112df16 LP |
1072 | sigchld_code_to_string(si.si_code), |
1073 | si.si_status, | |
d06dacd0 LP |
1074 | strna(si.si_code == CLD_EXITED |
1075 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
1076 | : signal_to_string(si.si_status))); | |
acbb0225 | 1077 | |
8c47c732 | 1078 | if (!u) |
9152c765 LP |
1079 | continue; |
1080 | ||
ac155bb8 | 1081 | log_debug("Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); |
6c1a0478 | 1082 | |
c6c18be3 | 1083 | hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); |
87f0e418 | 1084 | UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); |
9152c765 LP |
1085 | } |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
7d793605 | 1090 | static int manager_start_target(Manager *m, const char *name, JobMode mode) { |
28247076 | 1091 | int r; |
398ef8ba LP |
1092 | DBusError error; |
1093 | ||
1094 | dbus_error_init(&error); | |
1095 | ||
af2d49f7 | 1096 | log_debug("Activating special unit %s", name); |
1e001f52 | 1097 | |
398ef8ba LP |
1098 | if ((r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL)) < 0) |
1099 | log_error("Failed to enqueue %s job: %s", name, bus_error(&error, r)); | |
28247076 | 1100 | |
398ef8ba | 1101 | dbus_error_free(&error); |
a1b256b0 LP |
1102 | |
1103 | return r; | |
28247076 LP |
1104 | } |
1105 | ||
a16e1123 | 1106 | static int manager_process_signal_fd(Manager *m) { |
9152c765 LP |
1107 | ssize_t n; |
1108 | struct signalfd_siginfo sfsi; | |
1109 | bool sigchld = false; | |
1110 | ||
1111 | assert(m); | |
1112 | ||
1113 | for (;;) { | |
acbb0225 | 1114 | if ((n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi))) != sizeof(sfsi)) { |
9152c765 LP |
1115 | |
1116 | if (n >= 0) | |
1117 | return -EIO; | |
1118 | ||
63090775 | 1119 | if (errno == EINTR || errno == EAGAIN) |
acbb0225 | 1120 | break; |
9152c765 LP |
1121 | |
1122 | return -errno; | |
1123 | } | |
1124 | ||
67370238 LP |
1125 | if (sfsi.ssi_pid > 0) { |
1126 | char *p = NULL; | |
1127 | ||
87d2c1ff | 1128 | get_process_comm(sfsi.ssi_pid, &p); |
dfa7f7e1 | 1129 | |
67370238 | 1130 | log_debug("Received SIG%s from PID %lu (%s).", |
4e240ab0 | 1131 | signal_to_string(sfsi.ssi_signo), |
67370238 LP |
1132 | (unsigned long) sfsi.ssi_pid, strna(p)); |
1133 | free(p); | |
1134 | } else | |
4e240ab0 | 1135 | log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); |
1e001f52 | 1136 | |
b9cd2ec1 LP |
1137 | switch (sfsi.ssi_signo) { |
1138 | ||
4112df16 | 1139 | case SIGCHLD: |
9152c765 | 1140 | sigchld = true; |
b9cd2ec1 LP |
1141 | break; |
1142 | ||
6632c602 | 1143 | case SIGTERM: |
a3d4e06d | 1144 | if (m->running_as == MANAGER_SYSTEM) { |
db06e3b6 LP |
1145 | /* This is for compatibility with the |
1146 | * original sysvinit */ | |
e11dc4a2 | 1147 | m->exit_code = MANAGER_REEXECUTE; |
a1b256b0 LP |
1148 | break; |
1149 | } | |
84e9af1e | 1150 | |
a1b256b0 | 1151 | /* Fall through */ |
e11dc4a2 LP |
1152 | |
1153 | case SIGINT: | |
a3d4e06d | 1154 | if (m->running_as == MANAGER_SYSTEM) { |
7d793605 | 1155 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE); |
84e9af1e LP |
1156 | break; |
1157 | } | |
1158 | ||
a1b256b0 | 1159 | /* Run the exit target if there is one, if not, just exit. */ |
0003d1ab | 1160 | if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) { |
a1b256b0 LP |
1161 | m->exit_code = MANAGER_EXIT; |
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | break; | |
84e9af1e | 1166 | |
28247076 | 1167 | case SIGWINCH: |
a3d4e06d | 1168 | if (m->running_as == MANAGER_SYSTEM) |
7d793605 | 1169 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); |
84e9af1e | 1170 | |
28247076 LP |
1171 | /* This is a nop on non-init */ |
1172 | break; | |
84e9af1e | 1173 | |
28247076 | 1174 | case SIGPWR: |
a3d4e06d | 1175 | if (m->running_as == MANAGER_SYSTEM) |
7d793605 | 1176 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); |
84e9af1e | 1177 | |
28247076 | 1178 | /* This is a nop on non-init */ |
84e9af1e | 1179 | break; |
6632c602 | 1180 | |
1005d14f | 1181 | case SIGUSR1: { |
57ee42ce LP |
1182 | Unit *u; |
1183 | ||
1184 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1185 | ||
1186 | if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) { | |
1187 | log_info("Trying to reconnect to bus..."); | |
3996fbe2 | 1188 | bus_init(m, true); |
57ee42ce LP |
1189 | } |
1190 | ||
1191 | if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) { | |
1192 | log_info("Loading D-Bus service..."); | |
7d793605 | 1193 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
57ee42ce LP |
1194 | } |
1195 | ||
1196 | break; | |
1197 | } | |
1198 | ||
2149e37c LP |
1199 | case SIGUSR2: { |
1200 | FILE *f; | |
1201 | char *dump = NULL; | |
1202 | size_t size; | |
1203 | ||
1204 | if (!(f = open_memstream(&dump, &size))) { | |
1205 | log_warning("Failed to allocate memory stream."); | |
1206 | break; | |
1207 | } | |
1208 | ||
1209 | manager_dump_units(m, f, "\t"); | |
1210 | manager_dump_jobs(m, f, "\t"); | |
1211 | ||
1212 | if (ferror(f)) { | |
1213 | fclose(f); | |
1214 | free(dump); | |
1215 | log_warning("Failed to write status stream"); | |
1216 | break; | |
1217 | } | |
1218 | ||
1219 | fclose(f); | |
1220 | log_dump(LOG_INFO, dump); | |
1221 | free(dump); | |
1222 | ||
1005d14f | 1223 | break; |
2149e37c | 1224 | } |
1005d14f | 1225 | |
a16e1123 LP |
1226 | case SIGHUP: |
1227 | m->exit_code = MANAGER_RELOAD; | |
1228 | break; | |
1229 | ||
7d793605 | 1230 | default: { |
253ee27a | 1231 | |
0003d1ab LP |
1232 | /* Starting SIGRTMIN+0 */ |
1233 | static const char * const target_table[] = { | |
7d793605 LP |
1234 | [0] = SPECIAL_DEFAULT_TARGET, |
1235 | [1] = SPECIAL_RESCUE_TARGET, | |
f057408c | 1236 | [2] = SPECIAL_EMERGENCY_TARGET, |
7d793605 LP |
1237 | [3] = SPECIAL_HALT_TARGET, |
1238 | [4] = SPECIAL_POWEROFF_TARGET, | |
0003d1ab LP |
1239 | [5] = SPECIAL_REBOOT_TARGET, |
1240 | [6] = SPECIAL_KEXEC_TARGET | |
1241 | }; | |
1242 | ||
1243 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
1244 | static const ManagerExitCode code_table[] = { | |
1245 | [0] = MANAGER_HALT, | |
1246 | [1] = MANAGER_POWEROFF, | |
1247 | [2] = MANAGER_REBOOT, | |
1248 | [3] = MANAGER_KEXEC | |
7d793605 LP |
1249 | }; |
1250 | ||
1251 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && | |
0003d1ab | 1252 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { |
764e9b5f MS |
1253 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; |
1254 | manager_start_target(m, target_table[idx], | |
1255 | (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); | |
7d793605 LP |
1256 | break; |
1257 | } | |
1258 | ||
0003d1ab LP |
1259 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
1260 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) { | |
1261 | m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
1262 | break; | |
1263 | } | |
1264 | ||
0658666b LP |
1265 | switch (sfsi.ssi_signo - SIGRTMIN) { |
1266 | ||
1267 | case 20: | |
1268 | log_debug("Enabling showing of status."); | |
27d340c7 | 1269 | manager_set_show_status(m, true); |
0658666b LP |
1270 | break; |
1271 | ||
1272 | case 21: | |
1273 | log_debug("Disabling showing of status."); | |
27d340c7 | 1274 | manager_set_show_status(m, false); |
0658666b LP |
1275 | break; |
1276 | ||
253ee27a LP |
1277 | case 22: |
1278 | log_set_max_level(LOG_DEBUG); | |
1279 | log_notice("Setting log level to debug."); | |
1280 | break; | |
1281 | ||
1282 | case 23: | |
1283 | log_set_max_level(LOG_INFO); | |
1284 | log_notice("Setting log level to info."); | |
1285 | break; | |
1286 | ||
4cfa2c99 LP |
1287 | case 26: |
1288 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1289 | log_notice("Setting log target to journal-or-kmsg."); | |
1290 | break; | |
1291 | ||
253ee27a LP |
1292 | case 27: |
1293 | log_set_target(LOG_TARGET_CONSOLE); | |
1294 | log_notice("Setting log target to console."); | |
1295 | break; | |
1296 | ||
1297 | case 28: | |
1298 | log_set_target(LOG_TARGET_KMSG); | |
1299 | log_notice("Setting log target to kmsg."); | |
1300 | break; | |
1301 | ||
1302 | case 29: | |
1303 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); | |
1304 | log_notice("Setting log target to syslog-or-kmsg."); | |
1305 | break; | |
1306 | ||
0658666b | 1307 | default: |
4e240ab0 | 1308 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); |
0658666b | 1309 | } |
b9cd2ec1 | 1310 | } |
7d793605 | 1311 | } |
9152c765 LP |
1312 | } |
1313 | ||
1314 | if (sigchld) | |
034c6ed7 LP |
1315 | return manager_dispatch_sigchld(m); |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
a16e1123 | 1320 | static int process_event(Manager *m, struct epoll_event *ev) { |
034c6ed7 | 1321 | int r; |
acbb0225 | 1322 | Watch *w; |
034c6ed7 LP |
1323 | |
1324 | assert(m); | |
1325 | assert(ev); | |
1326 | ||
3df5bf61 | 1327 | assert_se(w = ev->data.ptr); |
034c6ed7 | 1328 | |
40dde66f LP |
1329 | if (w->type == WATCH_INVALID) |
1330 | return 0; | |
1331 | ||
acbb0225 | 1332 | switch (w->type) { |
034c6ed7 | 1333 | |
ef734fd6 | 1334 | case WATCH_SIGNAL: |
034c6ed7 | 1335 | |
acbb0225 | 1336 | /* An incoming signal? */ |
f94ea366 | 1337 | if (ev->events != EPOLLIN) |
acbb0225 | 1338 | return -EINVAL; |
034c6ed7 | 1339 | |
a16e1123 | 1340 | if ((r = manager_process_signal_fd(m)) < 0) |
acbb0225 | 1341 | return r; |
034c6ed7 | 1342 | |
acbb0225 | 1343 | break; |
034c6ed7 | 1344 | |
8c47c732 LP |
1345 | case WATCH_NOTIFY: |
1346 | ||
1347 | /* An incoming daemon notification event? */ | |
1348 | if (ev->events != EPOLLIN) | |
1349 | return -EINVAL; | |
1350 | ||
1351 | if ((r = manager_process_notify_fd(m)) < 0) | |
1352 | return r; | |
1353 | ||
1354 | break; | |
1355 | ||
acbb0225 | 1356 | case WATCH_FD: |
034c6ed7 | 1357 | |
acbb0225 | 1358 | /* Some fd event, to be dispatched to the units */ |
ea430986 | 1359 | UNIT_VTABLE(w->data.unit)->fd_event(w->data.unit, w->fd, ev->events, w); |
acbb0225 | 1360 | break; |
034c6ed7 | 1361 | |
faf919f1 LP |
1362 | case WATCH_UNIT_TIMER: |
1363 | case WATCH_JOB_TIMER: { | |
acbb0225 LP |
1364 | uint64_t v; |
1365 | ssize_t k; | |
034c6ed7 | 1366 | |
acbb0225 | 1367 | /* Some timer event, to be dispatched to the units */ |
be888ebb | 1368 | if ((k = read(w->fd, &v, sizeof(v))) != sizeof(v)) { |
034c6ed7 | 1369 | |
acbb0225 LP |
1370 | if (k < 0 && (errno == EINTR || errno == EAGAIN)) |
1371 | break; | |
034c6ed7 | 1372 | |
acbb0225 | 1373 | return k < 0 ? -errno : -EIO; |
034c6ed7 LP |
1374 | } |
1375 | ||
faf919f1 LP |
1376 | if (w->type == WATCH_UNIT_TIMER) |
1377 | UNIT_VTABLE(w->data.unit)->timer_event(w->data.unit, v, w); | |
1378 | else | |
1379 | job_timer_event(w->data.job, v, w); | |
acbb0225 LP |
1380 | break; |
1381 | } | |
1382 | ||
ef734fd6 LP |
1383 | case WATCH_MOUNT: |
1384 | /* Some mount table change, intended for the mount subsystem */ | |
1385 | mount_fd_event(m, ev->events); | |
1386 | break; | |
1387 | ||
4e434314 LP |
1388 | case WATCH_SWAP: |
1389 | /* Some swap table change, intended for the swap subsystem */ | |
1390 | swap_fd_event(m, ev->events); | |
1391 | break; | |
1392 | ||
f94ea366 LP |
1393 | case WATCH_UDEV: |
1394 | /* Some notification from udev, intended for the device subsystem */ | |
1395 | device_fd_event(m, ev->events); | |
1396 | break; | |
1397 | ||
ea430986 LP |
1398 | case WATCH_DBUS_WATCH: |
1399 | bus_watch_event(m, w, ev->events); | |
1400 | break; | |
1401 | ||
1402 | case WATCH_DBUS_TIMEOUT: | |
1403 | bus_timeout_event(m, w, ev->events); | |
1404 | break; | |
1405 | ||
acbb0225 | 1406 | default: |
c5fd1e57 | 1407 | log_error("event type=%i", w->type); |
acbb0225 | 1408 | assert_not_reached("Unknown epoll event type."); |
034c6ed7 | 1409 | } |
9152c765 LP |
1410 | |
1411 | return 0; | |
1412 | } | |
1413 | ||
1414 | int manager_loop(Manager *m) { | |
1415 | int r; | |
9152c765 | 1416 | |
fac9f8df | 1417 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 1418 | |
9152c765 | 1419 | assert(m); |
a16e1123 | 1420 | m->exit_code = MANAGER_RUNNING; |
9152c765 | 1421 | |
fe51822e LP |
1422 | /* Release the path cache */ |
1423 | set_free_free(m->unit_path_cache); | |
1424 | m->unit_path_cache = NULL; | |
1425 | ||
b0c918b9 LP |
1426 | manager_check_finished(m); |
1427 | ||
a4312405 LP |
1428 | /* There might still be some zombies hanging around from |
1429 | * before we were exec()'ed. Leat's reap them */ | |
e96d6be7 LP |
1430 | r = manager_dispatch_sigchld(m); |
1431 | if (r < 0) | |
a4312405 LP |
1432 | return r; |
1433 | ||
a16e1123 | 1434 | while (m->exit_code == MANAGER_RUNNING) { |
957ca890 LP |
1435 | struct epoll_event event; |
1436 | int n; | |
c757a65b | 1437 | int wait_msec = -1; |
9152c765 | 1438 | |
c757a65b | 1439 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) |
e96d6be7 LP |
1440 | watchdog_ping(); |
1441 | ||
ea430986 LP |
1442 | if (!ratelimit_test(&rl)) { |
1443 | /* Yay, something is going seriously wrong, pause a little */ | |
1444 | log_warning("Looping too fast. Throttling execution a little."); | |
1445 | sleep(1); | |
e96d6be7 | 1446 | continue; |
ea430986 LP |
1447 | } |
1448 | ||
37a8e683 | 1449 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
1450 | continue; |
1451 | ||
37a8e683 | 1452 | if (manager_dispatch_run_queue(m) > 0) |
701cc384 LP |
1453 | continue; |
1454 | ||
37a8e683 | 1455 | if (bus_dispatch(m) > 0) |
c1e1601e | 1456 | continue; |
034c6ed7 | 1457 | |
37a8e683 | 1458 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e LP |
1459 | continue; |
1460 | ||
37a8e683 | 1461 | if (manager_dispatch_gc_queue(m) > 0) |
c1e1601e LP |
1462 | continue; |
1463 | ||
1464 | if (manager_dispatch_dbus_queue(m) > 0) | |
ea430986 | 1465 | continue; |
ea430986 | 1466 | |
e04aad61 LP |
1467 | if (swap_dispatch_reload(m) > 0) |
1468 | continue; | |
1469 | ||
c757a65b LP |
1470 | /* Sleep for half the watchdog time */ |
1471 | if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) { | |
1472 | wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); | |
1473 | if (wait_msec <= 0) | |
1474 | wait_msec = 1; | |
1475 | } else | |
1476 | wait_msec = -1; | |
1477 | ||
e96d6be7 LP |
1478 | n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); |
1479 | if (n < 0) { | |
9152c765 | 1480 | |
6089f4a9 | 1481 | if (errno == EINTR) |
9152c765 LP |
1482 | continue; |
1483 | ||
1484 | return -errno; | |
e96d6be7 LP |
1485 | } else if (n == 0) |
1486 | continue; | |
9152c765 | 1487 | |
957ca890 | 1488 | assert(n == 1); |
b9cd2ec1 | 1489 | |
e96d6be7 LP |
1490 | r = process_event(m, &event); |
1491 | if (r < 0) | |
957ca890 | 1492 | return r; |
a16e1123 | 1493 | } |
957ca890 | 1494 | |
a16e1123 | 1495 | return m->exit_code; |
83c60c9f | 1496 | } |
ea430986 | 1497 | |
80fbf05e | 1498 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, DBusError *e, Unit **_u) { |
ea430986 LP |
1499 | char *n; |
1500 | Unit *u; | |
80fbf05e | 1501 | int r; |
ea430986 LP |
1502 | |
1503 | assert(m); | |
1504 | assert(s); | |
1505 | assert(_u); | |
1506 | ||
1507 | if (!startswith(s, "/org/freedesktop/systemd1/unit/")) | |
1508 | return -EINVAL; | |
1509 | ||
80fbf05e MS |
1510 | n = bus_path_unescape(s+31); |
1511 | if (!n) | |
ea430986 LP |
1512 | return -ENOMEM; |
1513 | ||
80fbf05e | 1514 | r = manager_load_unit(m, n, NULL, e, &u); |
ea430986 LP |
1515 | free(n); |
1516 | ||
80fbf05e MS |
1517 | if (r < 0) |
1518 | return r; | |
ea430986 LP |
1519 | |
1520 | *_u = u; | |
1521 | ||
1522 | return 0; | |
1523 | } | |
86fbf370 LP |
1524 | |
1525 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
1526 | Job *j; | |
1527 | unsigned id; | |
1528 | int r; | |
1529 | ||
1530 | assert(m); | |
1531 | assert(s); | |
1532 | assert(_j); | |
1533 | ||
1534 | if (!startswith(s, "/org/freedesktop/systemd1/job/")) | |
1535 | return -EINVAL; | |
1536 | ||
1537 | if ((r = safe_atou(s + 30, &id)) < 0) | |
1538 | return r; | |
1539 | ||
1540 | if (!(j = manager_get_job(m, id))) | |
1541 | return -ENOENT; | |
1542 | ||
1543 | *_j = j; | |
1544 | ||
1545 | return 0; | |
1546 | } | |
dfcd764e | 1547 | |
4927fcae | 1548 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 1549 | |
4927fcae LP |
1550 | #ifdef HAVE_AUDIT |
1551 | char *p; | |
e537352b | 1552 | |
4927fcae | 1553 | if (m->audit_fd < 0) |
e537352b LP |
1554 | return; |
1555 | ||
bbd3a7ba LP |
1556 | /* Don't generate audit events if the service was already |
1557 | * started and we're just deserializing */ | |
a7556052 | 1558 | if (m->n_reloading > 0) |
bbd3a7ba LP |
1559 | return; |
1560 | ||
f1dd0c3f LP |
1561 | if (m->running_as != MANAGER_SYSTEM) |
1562 | return; | |
1563 | ||
ac155bb8 | 1564 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
1565 | return; |
1566 | ||
ac155bb8 | 1567 | if (!(p = unit_name_to_prefix_and_instance(u->id))) { |
4927fcae | 1568 | log_error("Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); |
e537352b LP |
1569 | return; |
1570 | } | |
1571 | ||
391ade86 | 1572 | if (audit_log_user_comm_message(m->audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) { |
391ade86 LP |
1573 | if (errno == EPERM) { |
1574 | /* We aren't allowed to send audit messages? | |
44785992 | 1575 | * Then let's not retry again. */ |
391ade86 LP |
1576 | audit_close(m->audit_fd); |
1577 | m->audit_fd = -1; | |
44785992 LP |
1578 | } else |
1579 | log_warning("Failed to send audit message: %m"); | |
391ade86 | 1580 | } |
e537352b | 1581 | |
4927fcae LP |
1582 | free(p); |
1583 | #endif | |
e537352b | 1584 | |
e537352b LP |
1585 | } |
1586 | ||
e983b760 LP |
1587 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
1588 | int fd = -1; | |
1589 | union sockaddr_union sa; | |
1590 | int n = 0; | |
1591 | char *message = NULL; | |
e983b760 LP |
1592 | |
1593 | /* Don't generate plymouth events if the service was already | |
1594 | * started and we're just deserializing */ | |
a7556052 | 1595 | if (m->n_reloading > 0) |
e983b760 LP |
1596 | return; |
1597 | ||
1598 | if (m->running_as != MANAGER_SYSTEM) | |
1599 | return; | |
1600 | ||
ac155bb8 MS |
1601 | if (u->type != UNIT_SERVICE && |
1602 | u->type != UNIT_MOUNT && | |
1603 | u->type != UNIT_SWAP) | |
e983b760 LP |
1604 | return; |
1605 | ||
1606 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
1607 | * message then wait for plymouth */ | |
1608 | if ((fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) { | |
1609 | log_error("socket() failed: %m"); | |
1610 | return; | |
1611 | } | |
1612 | ||
1613 | zero(sa); | |
1614 | sa.sa.sa_family = AF_UNIX; | |
96707269 LP |
1615 | strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1); |
1616 | if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { | |
e983b760 LP |
1617 | |
1618 | if (errno != EPIPE && | |
1619 | errno != EAGAIN && | |
1620 | errno != ENOENT && | |
1621 | errno != ECONNREFUSED && | |
1622 | errno != ECONNRESET && | |
1623 | errno != ECONNABORTED) | |
1624 | log_error("connect() failed: %m"); | |
1625 | ||
1626 | goto finish; | |
1627 | } | |
1628 | ||
ac155bb8 | 1629 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 1630 | log_oom(); |
e983b760 LP |
1631 | goto finish; |
1632 | } | |
1633 | ||
1634 | errno = 0; | |
bd40a2d8 | 1635 | if (write(fd, message, n + 1) != n + 1) { |
e983b760 LP |
1636 | |
1637 | if (errno != EPIPE && | |
1638 | errno != EAGAIN && | |
1639 | errno != ENOENT && | |
1640 | errno != ECONNREFUSED && | |
1641 | errno != ECONNRESET && | |
1642 | errno != ECONNABORTED) | |
1643 | log_error("Failed to write Plymouth message: %m"); | |
1644 | ||
1645 | goto finish; | |
1646 | } | |
1647 | ||
1648 | finish: | |
1649 | if (fd >= 0) | |
1650 | close_nointr_nofail(fd); | |
1651 | ||
1652 | free(message); | |
1653 | } | |
1654 | ||
05e343b7 LP |
1655 | void manager_dispatch_bus_name_owner_changed( |
1656 | Manager *m, | |
1657 | const char *name, | |
1658 | const char* old_owner, | |
1659 | const char *new_owner) { | |
1660 | ||
1661 | Unit *u; | |
1662 | ||
1663 | assert(m); | |
1664 | assert(name); | |
1665 | ||
1666 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1667 | return; | |
1668 | ||
1669 | UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner); | |
1670 | } | |
1671 | ||
1672 | void manager_dispatch_bus_query_pid_done( | |
1673 | Manager *m, | |
1674 | const char *name, | |
1675 | pid_t pid) { | |
1676 | ||
1677 | Unit *u; | |
1678 | ||
1679 | assert(m); | |
1680 | assert(name); | |
1681 | assert(pid >= 1); | |
1682 | ||
1683 | if (!(u = hashmap_get(m->watch_bus, name))) | |
1684 | return; | |
1685 | ||
1686 | UNIT_VTABLE(u)->bus_query_pid_done(u, name, pid); | |
1687 | } | |
1688 | ||
d8d5ab98 | 1689 | int manager_open_serialization(Manager *m, FILE **_f) { |
b925e726 | 1690 | char *path = NULL; |
a16e1123 LP |
1691 | mode_t saved_umask; |
1692 | int fd; | |
1693 | FILE *f; | |
1694 | ||
1695 | assert(_f); | |
1696 | ||
b925e726 | 1697 | if (m->running_as == MANAGER_SYSTEM) |
2b583ce6 | 1698 | asprintf(&path, "/run/systemd/dump-%lu-XXXXXX", (unsigned long) getpid()); |
b925e726 LP |
1699 | else |
1700 | asprintf(&path, "/tmp/systemd-dump-%lu-XXXXXX", (unsigned long) getpid()); | |
d8d5ab98 | 1701 | |
b925e726 LP |
1702 | if (!path) |
1703 | return -ENOMEM; | |
a16e1123 LP |
1704 | |
1705 | saved_umask = umask(0077); | |
1706 | fd = mkostemp(path, O_RDWR|O_CLOEXEC); | |
1707 | umask(saved_umask); | |
1708 | ||
1709 | if (fd < 0) { | |
1710 | free(path); | |
1711 | return -errno; | |
1712 | } | |
1713 | ||
1714 | unlink(path); | |
1715 | ||
1716 | log_debug("Serializing state to %s", path); | |
1717 | free(path); | |
1718 | ||
da19d5c1 | 1719 | if (!(f = fdopen(fd, "w+"))) |
a16e1123 LP |
1720 | return -errno; |
1721 | ||
1722 | *_f = f; | |
1723 | ||
1724 | return 0; | |
1725 | } | |
1726 | ||
6b78f9b4 | 1727 | int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool serialize_jobs) { |
a16e1123 LP |
1728 | Iterator i; |
1729 | Unit *u; | |
1730 | const char *t; | |
1731 | int r; | |
1732 | ||
1733 | assert(m); | |
1734 | assert(f); | |
1735 | assert(fds); | |
1736 | ||
a7556052 | 1737 | m->n_reloading ++; |
38c52d46 | 1738 | |
01d67b43 LP |
1739 | fprintf(f, "current-job-id=%i\n", m->current_job_id); |
1740 | fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); | |
33c5fae9 LP |
1741 | fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs); |
1742 | fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs); | |
01d67b43 | 1743 | |
e9ddabc2 | 1744 | dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); |
f38ed060 | 1745 | |
26a1efdf | 1746 | if (!in_initrd()) { |
f38ed060 HH |
1747 | dual_timestamp_serialize(f, "startup-timestamp", &m->startup_timestamp); |
1748 | dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); | |
1749 | } | |
47a483a1 | 1750 | |
f2382a94 LP |
1751 | fputc('\n', f); |
1752 | ||
a16e1123 | 1753 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 1754 | if (u->id != t) |
a16e1123 LP |
1755 | continue; |
1756 | ||
1757 | if (!unit_can_serialize(u)) | |
1758 | continue; | |
1759 | ||
1760 | /* Start marker */ | |
ac155bb8 | 1761 | fputs(u->id, f); |
a16e1123 LP |
1762 | fputc('\n', f); |
1763 | ||
6b78f9b4 | 1764 | if ((r = unit_serialize(u, f, fds, serialize_jobs)) < 0) { |
a7556052 | 1765 | m->n_reloading --; |
a16e1123 | 1766 | return r; |
38c52d46 | 1767 | } |
a16e1123 LP |
1768 | } |
1769 | ||
a7556052 LP |
1770 | assert(m->n_reloading > 0); |
1771 | m->n_reloading --; | |
38c52d46 | 1772 | |
a16e1123 LP |
1773 | if (ferror(f)) |
1774 | return -EIO; | |
1775 | ||
b23de6af LP |
1776 | r = bus_fdset_add_all(m, fds); |
1777 | if (r < 0) | |
1778 | return r; | |
1779 | ||
a16e1123 LP |
1780 | return 0; |
1781 | } | |
1782 | ||
1783 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { | |
1784 | int r = 0; | |
1785 | ||
1786 | assert(m); | |
1787 | assert(f); | |
1788 | ||
1789 | log_debug("Deserializing state..."); | |
1790 | ||
a7556052 | 1791 | m->n_reloading ++; |
82c64bf5 | 1792 | |
10f8e83c | 1793 | for (;;) { |
20c03b7b | 1794 | char line[LINE_MAX], *l; |
10f8e83c LP |
1795 | |
1796 | if (!fgets(line, sizeof(line), f)) { | |
1797 | if (feof(f)) | |
1798 | r = 0; | |
1799 | else | |
1800 | r = -errno; | |
1801 | ||
1802 | goto finish; | |
1803 | } | |
1804 | ||
1805 | char_array_0(line); | |
1806 | l = strstrip(line); | |
1807 | ||
1808 | if (l[0] == 0) | |
1809 | break; | |
1810 | ||
01d67b43 LP |
1811 | if (startswith(l, "current-job-id=")) { |
1812 | uint32_t id; | |
1813 | ||
1814 | if (safe_atou32(l+15, &id) < 0) | |
1815 | log_debug("Failed to parse current job id value %s", l+15); | |
1816 | else | |
1817 | m->current_job_id = MAX(m->current_job_id, id); | |
33c5fae9 LP |
1818 | } else if (startswith(l, "n-installed-jobs=")) { |
1819 | uint32_t n; | |
1820 | ||
1821 | if (safe_atou32(l+17, &n) < 0) | |
1822 | log_debug("Failed to parse installed jobs counter %s", l+17); | |
1823 | else | |
1824 | m->n_installed_jobs += n; | |
1825 | } else if (startswith(l, "n-failed-jobs=")) { | |
1826 | uint32_t n; | |
1827 | ||
1828 | if (safe_atou32(l+14, &n) < 0) | |
1829 | log_debug("Failed to parse failed jobs counter %s", l+14); | |
1830 | else | |
1831 | m->n_failed_jobs += n; | |
01d67b43 LP |
1832 | } else if (startswith(l, "taint-usr=")) { |
1833 | int b; | |
1834 | ||
1835 | if ((b = parse_boolean(l+10)) < 0) | |
1836 | log_debug("Failed to parse taint /usr flag %s", l+10); | |
1837 | else | |
1838 | m->taint_usr = m->taint_usr || b; | |
1839 | } else if (startswith(l, "initrd-timestamp=")) | |
e9ddabc2 LP |
1840 | dual_timestamp_deserialize(l+17, &m->initrd_timestamp); |
1841 | else if (startswith(l, "startup-timestamp=")) | |
799fd0fd | 1842 | dual_timestamp_deserialize(l+18, &m->startup_timestamp); |
10717a1a | 1843 | else if (startswith(l, "finish-timestamp=")) |
799fd0fd | 1844 | dual_timestamp_deserialize(l+17, &m->finish_timestamp); |
10717a1a | 1845 | else |
10f8e83c LP |
1846 | log_debug("Unknown serialization item '%s'", l); |
1847 | } | |
1848 | ||
a16e1123 LP |
1849 | for (;;) { |
1850 | Unit *u; | |
1851 | char name[UNIT_NAME_MAX+2]; | |
1852 | ||
1853 | /* Start marker */ | |
1854 | if (!fgets(name, sizeof(name), f)) { | |
1855 | if (feof(f)) | |
10f8e83c LP |
1856 | r = 0; |
1857 | else | |
1858 | r = -errno; | |
a16e1123 | 1859 | |
82c64bf5 | 1860 | goto finish; |
a16e1123 LP |
1861 | } |
1862 | ||
1863 | char_array_0(name); | |
1864 | ||
398ef8ba | 1865 | if ((r = manager_load_unit(m, strstrip(name), NULL, NULL, &u)) < 0) |
82c64bf5 | 1866 | goto finish; |
a16e1123 LP |
1867 | |
1868 | if ((r = unit_deserialize(u, f, fds)) < 0) | |
82c64bf5 | 1869 | goto finish; |
a16e1123 LP |
1870 | } |
1871 | ||
10f8e83c | 1872 | finish: |
82c64bf5 LP |
1873 | if (ferror(f)) { |
1874 | r = -EIO; | |
1875 | goto finish; | |
1876 | } | |
a16e1123 | 1877 | |
a7556052 LP |
1878 | assert(m->n_reloading > 0); |
1879 | m->n_reloading --; | |
82c64bf5 LP |
1880 | |
1881 | return r; | |
a16e1123 LP |
1882 | } |
1883 | ||
1884 | int manager_reload(Manager *m) { | |
1885 | int r, q; | |
1886 | FILE *f; | |
1887 | FDSet *fds; | |
1888 | ||
1889 | assert(m); | |
1890 | ||
07719a21 LP |
1891 | r = manager_open_serialization(m, &f); |
1892 | if (r < 0) | |
a16e1123 LP |
1893 | return r; |
1894 | ||
a7556052 | 1895 | m->n_reloading ++; |
38c52d46 | 1896 | |
07719a21 LP |
1897 | fds = fdset_new(); |
1898 | if (!fds) { | |
a7556052 | 1899 | m->n_reloading --; |
a16e1123 LP |
1900 | r = -ENOMEM; |
1901 | goto finish; | |
1902 | } | |
1903 | ||
6b78f9b4 | 1904 | r = manager_serialize(m, f, fds, true); |
07719a21 | 1905 | if (r < 0) { |
a7556052 | 1906 | m->n_reloading --; |
a16e1123 | 1907 | goto finish; |
38c52d46 | 1908 | } |
a16e1123 LP |
1909 | |
1910 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
a7556052 | 1911 | m->n_reloading --; |
a16e1123 LP |
1912 | r = -errno; |
1913 | goto finish; | |
1914 | } | |
1915 | ||
1916 | /* From here on there is no way back. */ | |
1917 | manager_clear_jobs_and_units(m); | |
5a1e9937 | 1918 | manager_undo_generators(m); |
84e3543e | 1919 | lookup_paths_free(&m->lookup_paths); |
2ded0c04 | 1920 | |
07719a21 | 1921 | /* Find new unit paths */ |
5a1e9937 LP |
1922 | manager_run_generators(m); |
1923 | ||
07719a21 LP |
1924 | q = lookup_paths_init( |
1925 | &m->lookup_paths, m->running_as, true, | |
1926 | m->generator_unit_path, | |
1927 | m->generator_unit_path_early, | |
1928 | m->generator_unit_path_late); | |
1929 | if (q < 0) | |
1930 | r = q; | |
1931 | ||
5a1e9937 LP |
1932 | manager_build_unit_path_cache(m); |
1933 | ||
a16e1123 | 1934 | /* First, enumerate what we can from all config files */ |
07719a21 LP |
1935 | q = manager_enumerate(m); |
1936 | if (q < 0) | |
a16e1123 LP |
1937 | r = q; |
1938 | ||
1939 | /* Second, deserialize our stored data */ | |
07719a21 LP |
1940 | q = manager_deserialize(m, f, fds); |
1941 | if (q < 0) | |
a16e1123 LP |
1942 | r = q; |
1943 | ||
1944 | fclose(f); | |
1945 | f = NULL; | |
1946 | ||
1947 | /* Third, fire things up! */ | |
07719a21 LP |
1948 | q = manager_coldplug(m); |
1949 | if (q < 0) | |
a16e1123 LP |
1950 | r = q; |
1951 | ||
a7556052 LP |
1952 | assert(m->n_reloading > 0); |
1953 | m->n_reloading--; | |
9f611ad8 | 1954 | |
a16e1123 LP |
1955 | finish: |
1956 | if (f) | |
1957 | fclose(f); | |
1958 | ||
1959 | if (fds) | |
1960 | fdset_free(fds); | |
1961 | ||
1962 | return r; | |
1963 | } | |
1964 | ||
9e58ff9c LP |
1965 | bool manager_is_booting_or_shutting_down(Manager *m) { |
1966 | Unit *u; | |
1967 | ||
1968 | assert(m); | |
1969 | ||
1970 | /* Is the initial job still around? */ | |
bacbccb7 | 1971 | if (manager_get_job(m, m->default_unit_job_id)) |
9e58ff9c LP |
1972 | return true; |
1973 | ||
1974 | /* Is there a job for the shutdown target? */ | |
27d340c7 LP |
1975 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
1976 | if (u) | |
ac155bb8 | 1977 | return !!u->job; |
9e58ff9c LP |
1978 | |
1979 | return false; | |
1980 | } | |
1981 | ||
fdf20a31 | 1982 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
1983 | Unit *u; |
1984 | Iterator i; | |
1985 | ||
1986 | assert(m); | |
1987 | ||
1988 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 1989 | unit_reset_failed(u); |
5632e374 LP |
1990 | } |
1991 | ||
8f6df3fa LP |
1992 | bool manager_unit_pending_inactive(Manager *m, const char *name) { |
1993 | Unit *u; | |
1994 | ||
1995 | assert(m); | |
1996 | assert(name); | |
1997 | ||
1998 | /* Returns true if the unit is inactive or going down */ | |
8f6df3fa LP |
1999 | if (!(u = manager_get_unit(m, name))) |
2000 | return true; | |
2001 | ||
18ffdfda | 2002 | return unit_pending_inactive(u); |
8f6df3fa LP |
2003 | } |
2004 | ||
b0c918b9 | 2005 | void manager_check_finished(Manager *m) { |
e9ddabc2 | 2006 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
7ea07dcd | 2007 | usec_t kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 LP |
2008 | |
2009 | assert(m); | |
2010 | ||
f2b68789 | 2011 | if (hashmap_size(m->jobs) > 0) |
b0c918b9 LP |
2012 | return; |
2013 | ||
f2b68789 LP |
2014 | /* Notify Type=idle units that we are done now */ |
2015 | close_pipe(m->idle_pipe); | |
2016 | ||
af6da548 LP |
2017 | /* Turn off confirm spawn now */ |
2018 | m->confirm_spawn = false; | |
2019 | ||
f2b68789 | 2020 | if (dual_timestamp_is_set(&m->finish_timestamp)) |
b0c918b9 LP |
2021 | return; |
2022 | ||
2023 | dual_timestamp_get(&m->finish_timestamp); | |
2024 | ||
e03ae661 LP |
2025 | if (m->running_as == MANAGER_SYSTEM && detect_container(NULL) <= 0) { |
2026 | ||
18fa6b27 LP |
2027 | userspace_usec = m->finish_timestamp.monotonic - m->startup_timestamp.monotonic; |
2028 | total_usec = m->finish_timestamp.monotonic; | |
2029 | ||
e9ddabc2 | 2030 | if (dual_timestamp_is_set(&m->initrd_timestamp)) { |
18fa6b27 LP |
2031 | |
2032 | kernel_usec = m->initrd_timestamp.monotonic; | |
2033 | initrd_usec = m->startup_timestamp.monotonic - m->initrd_timestamp.monotonic; | |
2034 | ||
877d54e9 LP |
2035 | log_struct(LOG_INFO, |
2036 | "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_STARTUP_FINISHED), | |
2037 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, | |
2038 | "INITRD_USEC=%llu", (unsigned long long) initrd_usec, | |
2039 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2040 | "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", | |
2041 | format_timespan(kernel, sizeof(kernel), kernel_usec), | |
2042 | format_timespan(initrd, sizeof(initrd), initrd_usec), | |
2043 | format_timespan(userspace, sizeof(userspace), userspace_usec), | |
2044 | format_timespan(sum, sizeof(sum), total_usec), | |
2045 | NULL); | |
18fa6b27 LP |
2046 | } else { |
2047 | kernel_usec = m->startup_timestamp.monotonic; | |
2048 | initrd_usec = 0; | |
2049 | ||
877d54e9 LP |
2050 | log_struct(LOG_INFO, |
2051 | "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_STARTUP_FINISHED), | |
2052 | "KERNEL_USEC=%llu", (unsigned long long) kernel_usec, | |
2053 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2054 | "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.", | |
2055 | format_timespan(kernel, sizeof(kernel), kernel_usec), | |
2056 | format_timespan(userspace, sizeof(userspace), userspace_usec), | |
2057 | format_timespan(sum, sizeof(sum), total_usec), | |
2058 | NULL); | |
18fa6b27 LP |
2059 | } |
2060 | } else { | |
877d54e9 LP |
2061 | initrd_usec = kernel_usec = 0; |
2062 | total_usec = userspace_usec = m->finish_timestamp.monotonic - m->startup_timestamp.monotonic; | |
2063 | ||
2064 | log_struct(LOG_INFO, | |
2065 | "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(SD_MESSAGE_STARTUP_FINISHED), | |
2066 | "USERSPACE_USEC=%llu", (unsigned long long) userspace_usec, | |
2067 | "MESSAGE=Startup finished in %s.", | |
2068 | format_timespan(sum, sizeof(sum), total_usec), | |
2069 | NULL); | |
18fa6b27 | 2070 | } |
b0c918b9 | 2071 | |
18fa6b27 | 2072 | bus_broadcast_finished(m, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
2073 | |
2074 | sd_notifyf(false, | |
2075 | "READY=1\nSTATUS=Startup finished in %s.", | |
2076 | format_timespan(sum, sizeof(sum), total_usec)); | |
b0c918b9 LP |
2077 | } |
2078 | ||
07719a21 LP |
2079 | static int create_generator_dir(Manager *m, char **generator, const char *name) { |
2080 | char *p; | |
2081 | int r; | |
2082 | ||
2083 | assert(m); | |
2084 | assert(generator); | |
2085 | assert(name); | |
2086 | ||
2087 | if (*generator) | |
2088 | return 0; | |
2089 | ||
2090 | if (m->running_as == MANAGER_SYSTEM && getpid() == 1) { | |
2091 | ||
2092 | p = strappend("/run/systemd/", name); | |
0d0f0c50 SL |
2093 | if (!p) |
2094 | return log_oom(); | |
07719a21 | 2095 | |
d2e54fae | 2096 | r = mkdir_p_label(p, 0755); |
07719a21 LP |
2097 | if (r < 0) { |
2098 | log_error("Failed to create generator directory: %s", strerror(-r)); | |
2099 | free(p); | |
2100 | return r; | |
2101 | } | |
2102 | } else { | |
b7def684 | 2103 | p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL); |
0d0f0c50 SL |
2104 | if (!p) |
2105 | return log_oom(); | |
07719a21 LP |
2106 | |
2107 | if (!mkdtemp(p)) { | |
2108 | free(p); | |
2109 | log_error("Failed to create generator directory: %m"); | |
2110 | return -errno; | |
2111 | } | |
2112 | } | |
2113 | ||
2114 | *generator = p; | |
2115 | return 0; | |
2116 | } | |
2117 | ||
2118 | static void trim_generator_dir(Manager *m, char **generator) { | |
2119 | assert(m); | |
2120 | assert(generator); | |
2121 | ||
2122 | if (!*generator) | |
2123 | return; | |
2124 | ||
2125 | if (rmdir(*generator) >= 0) { | |
2126 | free(*generator); | |
2127 | *generator = NULL; | |
2128 | } | |
2129 | ||
2130 | return; | |
2131 | } | |
2132 | ||
5a1e9937 LP |
2133 | void manager_run_generators(Manager *m) { |
2134 | DIR *d = NULL; | |
5a1e9937 | 2135 | const char *generator_path; |
07719a21 | 2136 | const char *argv[5]; |
07f8a4aa | 2137 | mode_t u; |
07719a21 | 2138 | int r; |
5a1e9937 LP |
2139 | |
2140 | assert(m); | |
2141 | ||
af2d49f7 | 2142 | generator_path = m->running_as == MANAGER_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; |
07719a21 LP |
2143 | d = opendir(generator_path); |
2144 | if (!d) { | |
5a1e9937 LP |
2145 | if (errno == ENOENT) |
2146 | return; | |
2147 | ||
2148 | log_error("Failed to enumerate generator directory: %m"); | |
2149 | return; | |
2150 | } | |
2151 | ||
07719a21 LP |
2152 | r = create_generator_dir(m, &m->generator_unit_path, "generator"); |
2153 | if (r < 0) | |
2154 | goto finish; | |
f1d19aa4 | 2155 | |
07719a21 LP |
2156 | r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early"); |
2157 | if (r < 0) | |
2158 | goto finish; | |
5a1e9937 | 2159 | |
07719a21 LP |
2160 | r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late"); |
2161 | if (r < 0) | |
2162 | goto finish; | |
5a1e9937 | 2163 | |
83cc030f LP |
2164 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
2165 | argv[1] = m->generator_unit_path; | |
07719a21 LP |
2166 | argv[2] = m->generator_unit_path_early; |
2167 | argv[3] = m->generator_unit_path_late; | |
2168 | argv[4] = NULL; | |
5a1e9937 | 2169 | |
07f8a4aa | 2170 | u = umask(0022); |
83cc030f | 2171 | execute_directory(generator_path, d, (char**) argv); |
07f8a4aa | 2172 | umask(u); |
5a1e9937 | 2173 | |
07719a21 LP |
2174 | trim_generator_dir(m, &m->generator_unit_path); |
2175 | trim_generator_dir(m, &m->generator_unit_path_early); | |
2176 | trim_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2177 | |
2178 | finish: | |
2179 | if (d) | |
2180 | closedir(d); | |
5a1e9937 LP |
2181 | } |
2182 | ||
07719a21 | 2183 | static void remove_generator_dir(Manager *m, char **generator) { |
5a1e9937 | 2184 | assert(m); |
07719a21 | 2185 | assert(generator); |
5a1e9937 | 2186 | |
07719a21 | 2187 | if (!*generator) |
5a1e9937 LP |
2188 | return; |
2189 | ||
07719a21 LP |
2190 | strv_remove(m->lookup_paths.unit_path, *generator); |
2191 | rm_rf(*generator, false, true, false); | |
5a1e9937 | 2192 | |
07719a21 LP |
2193 | free(*generator); |
2194 | *generator = NULL; | |
2195 | } | |
2196 | ||
2197 | void manager_undo_generators(Manager *m) { | |
2198 | assert(m); | |
2199 | ||
2200 | remove_generator_dir(m, &m->generator_unit_path); | |
2201 | remove_generator_dir(m, &m->generator_unit_path_early); | |
2202 | remove_generator_dir(m, &m->generator_unit_path_late); | |
5a1e9937 LP |
2203 | } |
2204 | ||
06d4c99a LP |
2205 | int manager_set_default_controllers(Manager *m, char **controllers) { |
2206 | char **l; | |
2207 | ||
2208 | assert(m); | |
2209 | ||
9156e799 LP |
2210 | l = strv_copy(controllers); |
2211 | if (!l) | |
06d4c99a LP |
2212 | return -ENOMEM; |
2213 | ||
2214 | strv_free(m->default_controllers); | |
2215 | m->default_controllers = l; | |
2216 | ||
b59e2465 | 2217 | cg_shorten_controllers(m->default_controllers); |
9156e799 | 2218 | |
06d4c99a LP |
2219 | return 0; |
2220 | } | |
2221 | ||
c93ff2e9 FC |
2222 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
2223 | int i; | |
2224 | ||
2225 | assert(m); | |
2226 | ||
2227 | for (i = 0; i < RLIMIT_NLIMITS; i++) { | |
07719a21 LP |
2228 | if (!default_rlimit[i]) |
2229 | continue; | |
c93ff2e9 | 2230 | |
07719a21 LP |
2231 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
2232 | if (!m->rlimit[i]) | |
2233 | return -ENOMEM; | |
c93ff2e9 FC |
2234 | } |
2235 | ||
2236 | return 0; | |
2237 | } | |
2238 | ||
4cfa2c99 | 2239 | void manager_recheck_journal(Manager *m) { |
f1dd0c3f LP |
2240 | Unit *u; |
2241 | ||
2242 | assert(m); | |
2243 | ||
2244 | if (m->running_as != MANAGER_SYSTEM) | |
2245 | return; | |
2246 | ||
731a676c LP |
2247 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
2248 | if (u && SOCKET(u)->state != SOCKET_RUNNING) { | |
4cfa2c99 | 2249 | log_close_journal(); |
731a676c | 2250 | return; |
f1dd0c3f LP |
2251 | } |
2252 | ||
731a676c LP |
2253 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
2254 | if (u && SERVICE(u)->state != SERVICE_RUNNING) { | |
4cfa2c99 | 2255 | log_close_journal(); |
731a676c LP |
2256 | return; |
2257 | } | |
f1dd0c3f | 2258 | |
731a676c LP |
2259 | /* Hmm, OK, so the socket is fully up and the service is up |
2260 | * too, then let's make use of the thing. */ | |
f1dd0c3f LP |
2261 | log_open(); |
2262 | } | |
2263 | ||
27d340c7 LP |
2264 | void manager_set_show_status(Manager *m, bool b) { |
2265 | assert(m); | |
2266 | ||
2267 | if (m->running_as != MANAGER_SYSTEM) | |
2268 | return; | |
2269 | ||
2270 | m->show_status = b; | |
2271 | ||
2272 | if (b) | |
2273 | touch("/run/systemd/show-status"); | |
2274 | else | |
2275 | unlink("/run/systemd/show-status"); | |
2276 | } | |
2277 | ||
2278 | bool manager_get_show_status(Manager *m) { | |
2279 | assert(m); | |
2280 | ||
2281 | if (m->running_as != MANAGER_SYSTEM) | |
2282 | return false; | |
2283 | ||
2284 | if (m->show_status) | |
2285 | return true; | |
2286 | ||
2287 | /* If Plymouth is running make sure we show the status, so | |
2288 | * that there's something nice to see when people press Esc */ | |
2289 | ||
2290 | return plymouth_running(); | |
2291 | } | |
2292 | ||
dfcd764e | 2293 | static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = { |
dfcd764e | 2294 | [MANAGER_SYSTEM] = "system", |
af2d49f7 | 2295 | [MANAGER_USER] = "user" |
dfcd764e LP |
2296 | }; |
2297 | ||
2298 | DEFINE_STRING_TABLE_LOOKUP(manager_running_as, ManagerRunningAs); |