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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 | 2 | |
60918275 | 3 | #include <errno.h> |
400f1a33 LP |
4 | #include <fcntl.h> |
5 | #include <linux/kd.h> | |
9152c765 | 6 | #include <signal.h> |
400f1a33 | 7 | #include <string.h> |
e46b13c8 | 8 | #include <sys/epoll.h> |
400f1a33 | 9 | #include <sys/inotify.h> |
e1414003 | 10 | #include <sys/ioctl.h> |
400f1a33 | 11 | #include <sys/reboot.h> |
8742514c | 12 | #include <sys/timerfd.h> |
400f1a33 LP |
13 | #include <sys/wait.h> |
14 | #include <unistd.h> | |
830f6caa | 15 | |
349cc4a5 | 16 | #if HAVE_AUDIT |
4927fcae | 17 | #include <libaudit.h> |
830f6caa | 18 | #endif |
60918275 | 19 | |
718db961 | 20 | #include "sd-daemon.h" |
718db961 | 21 | #include "sd-messages.h" |
3536f49e | 22 | #include "sd-path.h" |
81527be1 | 23 | |
57b7a260 | 24 | #include "all-units.h" |
d68c645b | 25 | #include "alloc-util.h" |
400f1a33 LP |
26 | #include "audit-fd.h" |
27 | #include "boot-timestamps.h" | |
28 | #include "bus-common-errors.h" | |
29 | #include "bus-error.h" | |
30 | #include "bus-kernel.h" | |
31 | #include "bus-util.h" | |
00d9ef85 | 32 | #include "clean-ipc.h" |
af6b0ecc | 33 | #include "clock-util.h" |
400f1a33 LP |
34 | #include "dbus-job.h" |
35 | #include "dbus-manager.h" | |
36 | #include "dbus-unit.h" | |
37 | #include "dbus.h" | |
d063a527 | 38 | #include "dirent-util.h" |
400f1a33 | 39 | #include "env-util.h" |
4f5dd394 | 40 | #include "escape.h" |
89711996 | 41 | #include "exec-util.h" |
d3070fbd | 42 | #include "execute.h" |
400f1a33 | 43 | #include "exit-status.h" |
3ffd4af2 | 44 | #include "fd-util.h" |
0d39fa9c | 45 | #include "fileio.h" |
f4f15635 | 46 | #include "fs-util.h" |
60918275 | 47 | #include "hashmap.h" |
c004493c | 48 | #include "io-util.h" |
5cfa33e0 | 49 | #include "install.h" |
d3070fbd | 50 | #include "label.h" |
400f1a33 | 51 | #include "locale-setup.h" |
16354eff | 52 | #include "log.h" |
400f1a33 | 53 | #include "macro.h" |
3ffd4af2 | 54 | #include "manager.h" |
0a970718 | 55 | #include "memory-util.h" |
400f1a33 | 56 | #include "missing.h" |
49e942b2 | 57 | #include "mkdir.h" |
6bedfcbb | 58 | #include "parse-util.h" |
400f1a33 LP |
59 | #include "path-lookup.h" |
60 | #include "path-util.h" | |
e56f9ffe | 61 | #include "plymouth-util.h" |
400f1a33 | 62 | #include "process-util.h" |
ea430986 | 63 | #include "ratelimit.h" |
31ce987c | 64 | #include "rlimit-util.h" |
c6878637 | 65 | #include "rm-rf.h" |
d68c645b | 66 | #include "serialize.h" |
400f1a33 | 67 | #include "signal-util.h" |
57b7a260 | 68 | #include "socket-util.h" |
514f4ef5 | 69 | #include "special.h" |
8fcde012 | 70 | #include "stat-util.h" |
8b43440b | 71 | #include "string-table.h" |
07630cea | 72 | #include "string-util.h" |
400f1a33 | 73 | #include "strv.h" |
dd1db3c2 | 74 | #include "strxcpyx.h" |
a6ecbf83 | 75 | #include "syslog-util.h" |
400f1a33 LP |
76 | #include "terminal-util.h" |
77 | #include "time-util.h" | |
78 | #include "transaction.h" | |
affb60b1 | 79 | #include "umask-util.h" |
400f1a33 | 80 | #include "unit-name.h" |
00d9ef85 | 81 | #include "user-util.h" |
5dc4c17f | 82 | #include "virt.h" |
e96d6be7 | 83 | #include "watchdog.h" |
60918275 | 84 | |
a47806fa | 85 | #define NOTIFY_RCVBUF_SIZE (8*1024*1024) |
d8fdc620 | 86 | #define CGROUPS_AGENT_RCVBUF_SIZE (8*1024*1024) |
a47806fa | 87 | |
03b717a3 | 88 | /* Initial delay and the interval for printing status messages about running jobs */ |
fd08a840 ZJS |
89 | #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC) |
90 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) | |
03b717a3 MS |
91 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
92 | ||
5238e957 | 93 | /* If there are more than 1K bus messages queue across our API and direct buses, then let's not add more on top until |
e0a08581 LP |
94 | * the queue gets more empty. */ |
95 | #define MANAGER_BUS_BUSY_THRESHOLD 1024LU | |
96 | ||
97 | /* How many units and jobs to process of the bus queue before returning to the event loop. */ | |
98 | #define MANAGER_BUS_MESSAGE_BUDGET 100U | |
99 | ||
718db961 | 100 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
d8fdc620 | 101 | static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
718db961 LP |
102 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
103 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
104 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
00d9ef85 | 105 | static int manager_dispatch_user_lookup_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
718db961 | 106 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); |
752b5905 | 107 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
575b300b | 108 | static int manager_dispatch_sigchld(sd_event_source *source, void *userdata); |
bbf5fd8e | 109 | static int manager_dispatch_timezone_change(sd_event_source *source, const struct inotify_event *event, void *userdata); |
64691d20 | 110 | static int manager_run_environment_generators(Manager *m); |
e801700e | 111 | static int manager_run_generators(Manager *m); |
718db961 | 112 | |
2ae56591 | 113 | static void manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 | 114 | usec_t next; |
cfa9677b | 115 | int r; |
e5723c89 | 116 | |
718db961 | 117 | assert(m); |
03b717a3 | 118 | |
42bf1ae1 FB |
119 | /* We do not want to show the cylon animation if the user |
120 | * needs to confirm service executions otherwise confirmation | |
121 | * messages will be screwed by the cylon animation. */ | |
b0eb2944 | 122 | if (!manager_is_confirm_spawn_disabled(m)) |
42bf1ae1 FB |
123 | return; |
124 | ||
718db961 | 125 | if (m->jobs_in_progress_event_source) |
2ae56591 | 126 | return; |
03b717a3 | 127 | |
e5723c89 | 128 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; |
cfa9677b | 129 | r = sd_event_add_time( |
6a0f1f6d LP |
130 | m->event, |
131 | &m->jobs_in_progress_event_source, | |
132 | CLOCK_MONOTONIC, | |
133 | next, 0, | |
134 | manager_dispatch_jobs_in_progress, m); | |
cfa9677b MM |
135 | if (r < 0) |
136 | return; | |
7dfbe2e3 TG |
137 | |
138 | (void) sd_event_source_set_description(m->jobs_in_progress_event_source, "manager-jobs-in-progress"); | |
03b717a3 MS |
139 | } |
140 | ||
fbd0b64f | 141 | #define CYLON_BUFFER_EXTRA (2*STRLEN(ANSI_RED) + STRLEN(ANSI_HIGHLIGHT_RED) + 2*STRLEN(ANSI_NORMAL)) |
03b717a3 | 142 | |
03b717a3 MS |
143 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
144 | char *p = buffer; | |
145 | ||
146 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
147 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
148 | ||
149 | if (pos > 1) { | |
6282c859 MS |
150 | if (pos > 2) |
151 | p = mempset(p, ' ', pos-2); | |
64c3610b FB |
152 | if (log_get_show_color()) |
153 | p = stpcpy(p, ANSI_RED); | |
03b717a3 MS |
154 | *p++ = '*'; |
155 | } | |
156 | ||
157 | if (pos > 0 && pos <= width) { | |
64c3610b FB |
158 | if (log_get_show_color()) |
159 | p = stpcpy(p, ANSI_HIGHLIGHT_RED); | |
03b717a3 MS |
160 | *p++ = '*'; |
161 | } | |
162 | ||
64c3610b FB |
163 | if (log_get_show_color()) |
164 | p = stpcpy(p, ANSI_NORMAL); | |
03b717a3 MS |
165 | |
166 | if (pos < width) { | |
64c3610b FB |
167 | if (log_get_show_color()) |
168 | p = stpcpy(p, ANSI_RED); | |
03b717a3 | 169 | *p++ = '*'; |
6282c859 MS |
170 | if (pos < width-1) |
171 | p = mempset(p, ' ', width-1-pos); | |
64c3610b FB |
172 | if (log_get_show_color()) |
173 | strcpy(p, ANSI_NORMAL); | |
03b717a3 | 174 | } |
03b717a3 MS |
175 | } |
176 | ||
cb8ccb22 | 177 | void manager_flip_auto_status(Manager *m, bool enable) { |
f755e3b7 LP |
178 | assert(m); |
179 | ||
cb8ccb22 ZJS |
180 | if (enable) { |
181 | if (m->show_status == SHOW_STATUS_AUTO) | |
182 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY); | |
183 | } else { | |
184 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
185 | manager_set_show_status(m, SHOW_STATUS_AUTO); | |
186 | } | |
187 | } | |
188 | ||
03b717a3 | 189 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 190 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
191 | Iterator i; |
192 | Job *j; | |
03b717a3 MS |
193 | unsigned counter = 0, print_nr; |
194 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
195 | unsigned cylon_pos; | |
8bb310c3 ZJS |
196 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
197 | uint64_t x; | |
03b717a3 | 198 | |
718db961 | 199 | assert(m); |
9c3349e2 | 200 | assert(m->n_running_jobs > 0); |
718db961 | 201 | |
cb8ccb22 | 202 | manager_flip_auto_status(m, true); |
d450b6f2 | 203 | |
03b717a3 MS |
204 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
205 | ||
206 | HASHMAP_FOREACH(j, m->jobs, i) | |
207 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
208 | break; | |
209 | ||
e970a72e MS |
210 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
211 | * so the above loop must have succeeded in finding j. */ | |
212 | assert(counter == print_nr + 1); | |
51d122af | 213 | assert(j); |
5a82a91a | 214 | |
03b717a3 MS |
215 | cylon_pos = m->jobs_in_progress_iteration % 14; |
216 | if (cylon_pos >= 8) | |
217 | cylon_pos = 14 - cylon_pos; | |
218 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
219 | ||
8bb310c3 ZJS |
220 | m->jobs_in_progress_iteration++; |
221 | ||
d6483ba7 ZJS |
222 | if (m->n_running_jobs > 1) { |
223 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
224 | job_of_n = NULL; | |
225 | } | |
03b717a3 | 226 | |
8bb310c3 ZJS |
227 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
228 | if (job_get_timeout(j, &x) > 0) | |
229 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
230 | ||
127d5fd1 | 231 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon, |
8bb310c3 ZJS |
232 | "%sA %s job is running for %s (%s / %s)", |
233 | strempty(job_of_n), | |
234 | job_type_to_string(j->type), | |
2a8f53c6 | 235 | unit_status_string(j->unit), |
8bb310c3 | 236 | time, limit); |
03b717a3 MS |
237 | } |
238 | ||
e46b13c8 ZJS |
239 | static int have_ask_password(void) { |
240 | _cleanup_closedir_ DIR *dir; | |
8fb3f009 | 241 | struct dirent *de; |
e46b13c8 ZJS |
242 | |
243 | dir = opendir("/run/systemd/ask-password"); | |
244 | if (!dir) { | |
245 | if (errno == ENOENT) | |
246 | return false; | |
247 | else | |
248 | return -errno; | |
249 | } | |
250 | ||
8fb3f009 | 251 | FOREACH_DIRENT_ALL(de, dir, return -errno) { |
e46b13c8 ZJS |
252 | if (startswith(de->d_name, "ask.")) |
253 | return true; | |
254 | } | |
8fb3f009 | 255 | return false; |
e46b13c8 ZJS |
256 | } |
257 | ||
258 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
259 | int fd, uint32_t revents, void *userdata) { | |
260 | Manager *m = userdata; | |
261 | ||
262 | assert(m); | |
263 | ||
665dfe93 | 264 | (void) flush_fd(fd); |
e46b13c8 ZJS |
265 | |
266 | m->have_ask_password = have_ask_password(); | |
267 | if (m->have_ask_password < 0) | |
268 | /* Log error but continue. Negative have_ask_password | |
269 | * is treated as unknown status. */ | |
c33b3297 | 270 | log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
271 | |
272 | return 0; | |
273 | } | |
274 | ||
275 | static void manager_close_ask_password(Manager *m) { | |
276 | assert(m); | |
277 | ||
e46b13c8 | 278 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); |
90990e28 | 279 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); |
e46b13c8 ZJS |
280 | m->have_ask_password = -EINVAL; |
281 | } | |
282 | ||
283 | static int manager_check_ask_password(Manager *m) { | |
284 | int r; | |
285 | ||
286 | assert(m); | |
287 | ||
288 | if (!m->ask_password_event_source) { | |
289 | assert(m->ask_password_inotify_fd < 0); | |
290 | ||
17e4b070 | 291 | (void) mkdir_p_label("/run/systemd/ask-password", 0755); |
e46b13c8 ZJS |
292 | |
293 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
4a62c710 | 294 | if (m->ask_password_inotify_fd < 0) |
330b8fb3 | 295 | return log_error_errno(errno, "Failed to create inotify object: %m"); |
e46b13c8 ZJS |
296 | |
297 | if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) { | |
330b8fb3 | 298 | log_error_errno(errno, "Failed to watch \"/run/systemd/ask-password\": %m"); |
e46b13c8 ZJS |
299 | manager_close_ask_password(m); |
300 | return -errno; | |
301 | } | |
302 | ||
303 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
304 | m->ask_password_inotify_fd, EPOLLIN, | |
305 | manager_dispatch_ask_password_fd, m); | |
306 | if (r < 0) { | |
56f64d95 | 307 | log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
308 | manager_close_ask_password(m); |
309 | return -errno; | |
310 | } | |
311 | ||
7dfbe2e3 TG |
312 | (void) sd_event_source_set_description(m->ask_password_event_source, "manager-ask-password"); |
313 | ||
e46b13c8 ZJS |
314 | /* Queries might have been added meanwhile... */ |
315 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
316 | m->ask_password_inotify_fd, EPOLLIN, m); | |
317 | } | |
318 | ||
319 | return m->have_ask_password; | |
320 | } | |
321 | ||
31a7eb86 | 322 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
323 | int r; |
324 | ||
718db961 LP |
325 | assert(m); |
326 | ||
327 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
328 | return 0; |
329 | ||
330 | if (m->idle_pipe[2] < 0) | |
331 | return 0; | |
332 | ||
151b9b96 | 333 | r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m); |
23bbb0de MS |
334 | if (r < 0) |
335 | return log_error_errno(r, "Failed to watch idle pipe: %m"); | |
31a7eb86 | 336 | |
7dfbe2e3 TG |
337 | (void) sd_event_source_set_description(m->idle_pipe_event_source, "manager-idle-pipe"); |
338 | ||
31a7eb86 | 339 | return 0; |
31a7eb86 ZJS |
340 | } |
341 | ||
718db961 LP |
342 | static void manager_close_idle_pipe(Manager *m) { |
343 | assert(m); | |
31a7eb86 | 344 | |
cd72bd8a LP |
345 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
346 | ||
3d94f76c LP |
347 | safe_close_pair(m->idle_pipe); |
348 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
349 | } |
350 | ||
8742514c | 351 | static int manager_setup_time_change(Manager *m) { |
718db961 | 352 | int r; |
b92bea5d | 353 | |
718db961 | 354 | assert(m); |
8742514c | 355 | |
638cece4 | 356 | if (MANAGER_IS_TEST_RUN(m)) |
0d8c31ff ZJS |
357 | return 0; |
358 | ||
7feedd18 LP |
359 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); |
360 | m->time_change_fd = safe_close(m->time_change_fd); | |
361 | ||
4f811d27 | 362 | m->time_change_fd = time_change_fd(); |
4a62c710 | 363 | if (m->time_change_fd < 0) |
4f811d27 | 364 | return log_error_errno(m->time_change_fd, "Failed to create timer change timer fd: %m"); |
8742514c | 365 | |
151b9b96 | 366 | r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m); |
23bbb0de MS |
367 | if (r < 0) |
368 | return log_error_errno(r, "Failed to create time change event source: %m"); | |
8742514c | 369 | |
a5cc7e5a LP |
370 | /* Schedule this slightly earlier than the .timer event sources */ |
371 | r = sd_event_source_set_priority(m->time_change_event_source, SD_EVENT_PRIORITY_NORMAL-1); | |
372 | if (r < 0) | |
373 | return log_error_errno(r, "Failed to set priority of time change event sources: %m"); | |
374 | ||
7dfbe2e3 TG |
375 | (void) sd_event_source_set_description(m->time_change_event_source, "manager-time-change"); |
376 | ||
8742514c LP |
377 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
bbf5fd8e LP |
382 | static int manager_read_timezone_stat(Manager *m) { |
383 | struct stat st; | |
384 | bool changed; | |
385 | ||
386 | assert(m); | |
387 | ||
388 | /* Read the current stat() data of /etc/localtime so that we detect changes */ | |
389 | if (lstat("/etc/localtime", &st) < 0) { | |
390 | log_debug_errno(errno, "Failed to stat /etc/localtime, ignoring: %m"); | |
391 | changed = m->etc_localtime_accessible; | |
392 | m->etc_localtime_accessible = false; | |
393 | } else { | |
394 | usec_t k; | |
395 | ||
396 | k = timespec_load(&st.st_mtim); | |
397 | changed = !m->etc_localtime_accessible || k != m->etc_localtime_mtime; | |
398 | ||
399 | m->etc_localtime_mtime = k; | |
400 | m->etc_localtime_accessible = true; | |
401 | } | |
402 | ||
403 | return changed; | |
404 | } | |
405 | ||
406 | static int manager_setup_timezone_change(Manager *m) { | |
a5cc7e5a | 407 | _cleanup_(sd_event_source_unrefp) sd_event_source *new_event = NULL; |
bbf5fd8e LP |
408 | int r; |
409 | ||
410 | assert(m); | |
411 | ||
638cece4 | 412 | if (MANAGER_IS_TEST_RUN(m)) |
bbf5fd8e LP |
413 | return 0; |
414 | ||
415 | /* We watch /etc/localtime for three events: change of the link count (which might mean removal from /etc even | |
416 | * though another link might be kept), renames, and file close operations after writing. Note we don't bother | |
417 | * with IN_DELETE_SELF, as that would just report when the inode is removed entirely, i.e. after the link count | |
418 | * went to zero and all fds to it are closed. | |
419 | * | |
420 | * Note that we never follow symlinks here. This is a simplification, but should cover almost all cases | |
421 | * correctly. | |
422 | * | |
423 | * Note that we create the new event source first here, before releasing the old one. This should optimize | |
424 | * behaviour as this way sd-event can reuse the old watch in case the inode didn't change. */ | |
425 | ||
426 | r = sd_event_add_inotify(m->event, &new_event, "/etc/localtime", | |
427 | IN_ATTRIB|IN_MOVE_SELF|IN_CLOSE_WRITE|IN_DONT_FOLLOW, manager_dispatch_timezone_change, m); | |
0cb21d8c LP |
428 | if (r == -ENOENT) { |
429 | /* If the file doesn't exist yet, subscribe to /etc instead, and wait until it is created either by | |
430 | * O_CREATE or by rename() */ | |
431 | ||
432 | log_debug_errno(r, "/etc/localtime doesn't exist yet, watching /etc instead."); | |
bbf5fd8e LP |
433 | r = sd_event_add_inotify(m->event, &new_event, "/etc", |
434 | IN_CREATE|IN_MOVED_TO|IN_ONLYDIR, manager_dispatch_timezone_change, m); | |
0cb21d8c | 435 | } |
bbf5fd8e LP |
436 | if (r < 0) |
437 | return log_error_errno(r, "Failed to create timezone change event source: %m"); | |
438 | ||
a5cc7e5a LP |
439 | /* Schedule this slightly earlier than the .timer event sources */ |
440 | r = sd_event_source_set_priority(new_event, SD_EVENT_PRIORITY_NORMAL-1); | |
441 | if (r < 0) | |
442 | return log_error_errno(r, "Failed to set priority of timezone change event sources: %m"); | |
443 | ||
bbf5fd8e | 444 | sd_event_source_unref(m->timezone_change_event_source); |
a5cc7e5a | 445 | m->timezone_change_event_source = TAKE_PTR(new_event); |
bbf5fd8e LP |
446 | |
447 | return 0; | |
448 | } | |
449 | ||
80876c20 | 450 | static int enable_special_signals(Manager *m) { |
718db961 | 451 | _cleanup_close_ int fd = -1; |
80876c20 LP |
452 | |
453 | assert(m); | |
454 | ||
638cece4 | 455 | if (MANAGER_IS_TEST_RUN(m)) |
37453b3a EV |
456 | return 0; |
457 | ||
a41b539e | 458 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
459 | * this will fail with EPERM (older) or EINVAL (newer), so |
460 | * ignore that. */ | |
4c701096 | 461 | if (reboot(RB_DISABLE_CAD) < 0 && !IN_SET(errno, EPERM, EINVAL)) |
56f64d95 | 462 | log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m"); |
80876c20 | 463 | |
a41b539e LP |
464 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
465 | if (fd < 0) { | |
466 | /* Support systems without virtual console */ | |
467 | if (fd != -ENOENT) | |
56f64d95 | 468 | log_warning_errno(errno, "Failed to open /dev/tty0: %m"); |
a41b539e | 469 | } else { |
80876c20 LP |
470 | /* Enable that we get SIGWINCH on kbrequest */ |
471 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
56f64d95 | 472 | log_warning_errno(errno, "Failed to enable kbrequest handling: %m"); |
80876c20 LP |
473 | } |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
8750ac02 ZJS |
478 | #define RTSIG_IF_AVAILABLE(signum) (signum <= SIGRTMAX ? signum : -1) |
479 | ||
ce578209 | 480 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
481 | struct sigaction sa = { |
482 | .sa_handler = SIG_DFL, | |
483 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
484 | }; | |
718db961 LP |
485 | sigset_t mask; |
486 | int r; | |
60918275 | 487 | |
ce578209 LP |
488 | assert(m); |
489 | ||
57c0c30e LP |
490 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
491 | ||
4dffec14 LP |
492 | /* We make liberal use of realtime signals here. On |
493 | * Linux/glibc we have 30 of them (with the exception of Linux | |
494 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
495 | * (aka SIGRTMAX). */ | |
7d793605 | 496 | |
4dffec14 | 497 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
498 | sigset_add_many(&mask, |
499 | SIGCHLD, /* Child died */ | |
500 | SIGTERM, /* Reexecute daemon */ | |
501 | SIGHUP, /* Reload configuration */ | |
502 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
503 | SIGUSR2, /* systemd: dump status */ | |
504 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
505 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
506 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
4dffec14 | 507 | |
7d793605 | 508 | SIGRTMIN+0, /* systemd: start default.target */ |
0003d1ab | 509 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
510 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
511 | SIGRTMIN+3, /* systemd: start halt.target */ | |
512 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
513 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab | 514 | SIGRTMIN+6, /* systemd: start kexec.target */ |
4dffec14 LP |
515 | |
516 | /* ... space for more special targets ... */ | |
517 | ||
0003d1ab LP |
518 | SIGRTMIN+13, /* systemd: Immediate halt */ |
519 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
520 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
521 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
4dffec14 LP |
522 | |
523 | /* ... space for more immediate system state changes ... */ | |
524 | ||
0658666b LP |
525 | SIGRTMIN+20, /* systemd: enable status messages */ |
526 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
527 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
528 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 529 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4dffec14 LP |
530 | |
531 | /* .. one free signal here ... */ | |
532 | ||
8750ac02 ZJS |
533 | /* Apparently Linux on hppa had fewer RT signals until v3.18, |
534 | * SIGRTMAX was SIGRTMIN+25, and then SIGRTMIN was lowered, | |
535 | * see commit v3.17-7614-g1f25df2eff. | |
536 | * | |
537 | * We cannot unconditionally make use of those signals here, | |
538 | * so let's use a runtime check. Since these commands are | |
539 | * accessible by different means and only really a safety | |
540 | * net, the missing functionality on hppa shouldn't matter. | |
541 | */ | |
542 | ||
543 | RTSIG_IF_AVAILABLE(SIGRTMIN+26), /* systemd: set log target to journal-or-kmsg */ | |
544 | RTSIG_IF_AVAILABLE(SIGRTMIN+27), /* systemd: set log target to console */ | |
545 | RTSIG_IF_AVAILABLE(SIGRTMIN+28), /* systemd: set log target to kmsg */ | |
546 | RTSIG_IF_AVAILABLE(SIGRTMIN+29), /* systemd: set log target to syslog-or-kmsg (obsolete) */ | |
4dffec14 LP |
547 | |
548 | /* ... one free signal here SIGRTMIN+30 ... */ | |
7d793605 | 549 | -1); |
ce578209 LP |
550 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
551 | ||
718db961 LP |
552 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
553 | if (m->signal_fd < 0) | |
ce578209 LP |
554 | return -errno; |
555 | ||
151b9b96 | 556 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
557 | if (r < 0) |
558 | return r; | |
ce578209 | 559 | |
7dfbe2e3 TG |
560 | (void) sd_event_source_set_description(m->signal_event_source, "manager-signal"); |
561 | ||
d8fdc620 LP |
562 | /* Process signals a bit earlier than the rest of things, but later than notify_fd processing, so that the |
563 | * notify processing can still figure out to which process/service a message belongs, before we reap the | |
564 | * process. Also, process this before handling cgroup notifications, so that we always collect child exit | |
565 | * status information before detecting that there's no process in a cgroup. */ | |
566 | r = sd_event_source_set_priority(m->signal_event_source, SD_EVENT_PRIORITY_NORMAL-6); | |
29083707 LP |
567 | if (r < 0) |
568 | return r; | |
569 | ||
463d0d15 | 570 | if (MANAGER_IS_SYSTEM(m)) |
80876c20 | 571 | return enable_special_signals(m); |
e1414003 | 572 | |
ce578209 LP |
573 | return 0; |
574 | } | |
575 | ||
1ad6e8b3 | 576 | static char** sanitize_environment(char **l) { |
f069efb4 | 577 | |
47cf8ff2 | 578 | /* Let's remove some environment variables that we need ourselves to communicate with our clients */ |
f069efb4 | 579 | strv_env_unset_many( |
1ad6e8b3 | 580 | l, |
47cf8ff2 LP |
581 | "EXIT_CODE", |
582 | "EXIT_STATUS", | |
583 | "INVOCATION_ID", | |
584 | "JOURNAL_STREAM", | |
585 | "LISTEN_FDNAMES", | |
586 | "LISTEN_FDS", | |
587 | "LISTEN_PID", | |
f069efb4 LP |
588 | "MAINPID", |
589 | "MANAGERPID", | |
47cf8ff2 | 590 | "NOTIFY_SOCKET", |
dcf3c3c3 | 591 | "PIDFILE", |
47cf8ff2 LP |
592 | "REMOTE_ADDR", |
593 | "REMOTE_PORT", | |
594 | "SERVICE_RESULT", | |
f069efb4 LP |
595 | "WATCHDOG_PID", |
596 | "WATCHDOG_USEC", | |
597 | NULL); | |
47cf8ff2 LP |
598 | |
599 | /* Let's order the environment alphabetically, just to make it pretty */ | |
1ad6e8b3 LP |
600 | strv_sort(l); |
601 | ||
602 | return l; | |
f069efb4 LP |
603 | } |
604 | ||
79a224c4 | 605 | int manager_default_environment(Manager *m) { |
db11487d ZJS |
606 | int r; |
607 | ||
71ecc858 LP |
608 | assert(m); |
609 | ||
1ad6e8b3 LP |
610 | m->transient_environment = strv_free(m->transient_environment); |
611 | ||
463d0d15 | 612 | if (MANAGER_IS_SYSTEM(m)) { |
e21fea24 KS |
613 | /* The system manager always starts with a clean |
614 | * environment for its children. It does not import | |
71cb7d30 | 615 | * the kernel's or the parents' exported variables. |
e21fea24 | 616 | * |
71cb7d30 | 617 | * The initial passed environment is untouched to keep |
e21fea24 KS |
618 | * /proc/self/environ valid; it is used for tagging |
619 | * the init process inside containers. */ | |
1ad6e8b3 | 620 | m->transient_environment = strv_new("PATH=" DEFAULT_PATH); |
db11487d ZJS |
621 | if (!m->transient_environment) |
622 | return log_oom(); | |
e21fea24 KS |
623 | |
624 | /* Import locale variables LC_*= from configuration */ | |
1ad6e8b3 | 625 | (void) locale_setup(&m->transient_environment); |
db11487d ZJS |
626 | } else { |
627 | _cleanup_free_ char *k = NULL; | |
628 | ||
e21fea24 | 629 | /* The user manager passes its own environment |
db11487d | 630 | * along to its children, except for $PATH. */ |
1ad6e8b3 | 631 | m->transient_environment = strv_copy(environ); |
db11487d ZJS |
632 | if (!m->transient_environment) |
633 | return log_oom(); | |
634 | ||
635 | k = strdup("PATH=" DEFAULT_USER_PATH); | |
636 | if (!k) | |
637 | return log_oom(); | |
43d03a83 | 638 | |
db11487d ZJS |
639 | r = strv_env_replace(&m->transient_environment, k); |
640 | if (r < 0) | |
641 | return log_oom(); | |
642 | TAKE_PTR(k); | |
643 | } | |
8b55b8c4 | 644 | |
1ad6e8b3 | 645 | sanitize_environment(m->transient_environment); |
9d5a3757 | 646 | |
e21fea24 | 647 | return 0; |
71ecc858 LP |
648 | } |
649 | ||
3536f49e YW |
650 | static int manager_setup_prefix(Manager *m) { |
651 | struct table_entry { | |
652 | uint64_t type; | |
653 | const char *suffix; | |
654 | }; | |
655 | ||
72fd1768 | 656 | static const struct table_entry paths_system[_EXEC_DIRECTORY_TYPE_MAX] = { |
3536f49e YW |
657 | [EXEC_DIRECTORY_RUNTIME] = { SD_PATH_SYSTEM_RUNTIME, NULL }, |
658 | [EXEC_DIRECTORY_STATE] = { SD_PATH_SYSTEM_STATE_PRIVATE, NULL }, | |
659 | [EXEC_DIRECTORY_CACHE] = { SD_PATH_SYSTEM_STATE_CACHE, NULL }, | |
660 | [EXEC_DIRECTORY_LOGS] = { SD_PATH_SYSTEM_STATE_LOGS, NULL }, | |
661 | [EXEC_DIRECTORY_CONFIGURATION] = { SD_PATH_SYSTEM_CONFIGURATION, NULL }, | |
662 | }; | |
663 | ||
72fd1768 | 664 | static const struct table_entry paths_user[_EXEC_DIRECTORY_TYPE_MAX] = { |
3536f49e YW |
665 | [EXEC_DIRECTORY_RUNTIME] = { SD_PATH_USER_RUNTIME, NULL }, |
666 | [EXEC_DIRECTORY_STATE] = { SD_PATH_USER_CONFIGURATION, NULL }, | |
c6218495 LP |
667 | [EXEC_DIRECTORY_CACHE] = { SD_PATH_USER_STATE_CACHE, NULL }, |
668 | [EXEC_DIRECTORY_LOGS] = { SD_PATH_USER_CONFIGURATION, "log" }, | |
669 | [EXEC_DIRECTORY_CONFIGURATION] = { SD_PATH_USER_CONFIGURATION, NULL }, | |
3536f49e YW |
670 | }; |
671 | ||
672 | const struct table_entry *p; | |
673 | ExecDirectoryType i; | |
674 | int r; | |
675 | ||
676 | assert(m); | |
677 | ||
678 | if (MANAGER_IS_SYSTEM(m)) | |
679 | p = paths_system; | |
680 | else | |
681 | p = paths_user; | |
682 | ||
72fd1768 | 683 | for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++) { |
3536f49e YW |
684 | r = sd_path_home(p[i].type, p[i].suffix, &m->prefix[i]); |
685 | if (r < 0) | |
686 | return r; | |
687 | } | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
e8630e69 ZJS |
692 | static void manager_free_unit_name_maps(Manager *m) { |
693 | m->unit_id_map = hashmap_free(m->unit_id_map); | |
694 | m->unit_name_map = hashmap_free(m->unit_name_map); | |
695 | m->unit_path_cache = set_free_free(m->unit_path_cache); | |
91e0ee5f | 696 | m->unit_cache_mtime = 0; |
e8630e69 ZJS |
697 | } |
698 | ||
279d81dd LP |
699 | static int manager_setup_run_queue(Manager *m) { |
700 | int r; | |
701 | ||
702 | assert(m); | |
703 | assert(!m->run_queue_event_source); | |
704 | ||
705 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); | |
706 | if (r < 0) | |
707 | return r; | |
708 | ||
709 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
710 | if (r < 0) | |
711 | return r; | |
712 | ||
713 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
714 | if (r < 0) | |
715 | return r; | |
716 | ||
717 | (void) sd_event_source_set_description(m->run_queue_event_source, "manager-run-queue"); | |
718 | ||
719 | return 0; | |
720 | } | |
721 | ||
575b300b LP |
722 | static int manager_setup_sigchld_event_source(Manager *m) { |
723 | int r; | |
724 | ||
725 | assert(m); | |
726 | assert(!m->sigchld_event_source); | |
727 | ||
728 | r = sd_event_add_defer(m->event, &m->sigchld_event_source, manager_dispatch_sigchld, m); | |
729 | if (r < 0) | |
730 | return r; | |
731 | ||
732 | r = sd_event_source_set_priority(m->sigchld_event_source, SD_EVENT_PRIORITY_NORMAL-7); | |
733 | if (r < 0) | |
734 | return r; | |
735 | ||
736 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_OFF); | |
737 | if (r < 0) | |
738 | return r; | |
739 | ||
740 | (void) sd_event_source_set_description(m->sigchld_event_source, "manager-sigchld"); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
638cece4 | 745 | int manager_new(UnitFileScope scope, ManagerTestRunFlags test_run_flags, Manager **_m) { |
c70cac54 | 746 | _cleanup_(manager_freep) Manager *m = NULL; |
e3dd987c | 747 | int r; |
8e274523 LP |
748 | |
749 | assert(_m); | |
463d0d15 | 750 | assert(IN_SET(scope, UNIT_FILE_SYSTEM, UNIT_FILE_USER)); |
ce578209 | 751 | |
3ad228ce | 752 | m = new(Manager, 1); |
915b3753 | 753 | if (!m) |
8e274523 | 754 | return -ENOMEM; |
60918275 | 755 | |
3ad228ce LP |
756 | *m = (Manager) { |
757 | .unit_file_scope = scope, | |
758 | .objective = _MANAGER_OBJECTIVE_INVALID, | |
759 | ||
36cf4507 ZJS |
760 | .status_unit_format = STATUS_UNIT_FORMAT_DEFAULT, |
761 | ||
3ad228ce LP |
762 | .default_timer_accuracy_usec = USEC_PER_MINUTE, |
763 | .default_memory_accounting = MEMORY_ACCOUNTING_DEFAULT, | |
764 | .default_tasks_accounting = true, | |
765 | .default_tasks_max = UINT64_MAX, | |
766 | .default_timeout_start_usec = DEFAULT_TIMEOUT_USEC, | |
767 | .default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC, | |
768 | .default_restart_usec = DEFAULT_RESTART_USEC, | |
769 | ||
770 | .original_log_level = -1, | |
771 | .original_log_target = _LOG_TARGET_INVALID, | |
772 | ||
773 | .notify_fd = -1, | |
774 | .cgroups_agent_fd = -1, | |
775 | .signal_fd = -1, | |
776 | .time_change_fd = -1, | |
777 | .user_lookup_fds = { -1, -1 }, | |
778 | .private_listen_fd = -1, | |
779 | .dev_autofs_fd = -1, | |
780 | .cgroup_inotify_fd = -1, | |
781 | .pin_cgroupfs_fd = -1, | |
782 | .ask_password_inotify_fd = -1, | |
783 | .idle_pipe = { -1, -1, -1, -1}, | |
784 | ||
785 | /* start as id #1, so that we can leave #0 around as "null-like" value */ | |
786 | .current_job_id = 1, | |
787 | ||
788 | .have_ask_password = -EINVAL, /* we don't know */ | |
789 | .first_boot = -1, | |
790 | .test_run_flags = test_run_flags, | |
afcfaa69 LP |
791 | |
792 | .default_oom_policy = OOM_STOP, | |
3ad228ce | 793 | }; |
80876c20 | 794 | |
349cc4a5 | 795 | #if ENABLE_EFI |
463d0d15 | 796 | if (MANAGER_IS_SYSTEM(m) && detect_container() <= 0) |
9f9f0342 LP |
797 | boot_timestamps(m->timestamps + MANAGER_TIMESTAMP_USERSPACE, |
798 | m->timestamps + MANAGER_TIMESTAMP_FIRMWARE, | |
799 | m->timestamps + MANAGER_TIMESTAMP_LOADER); | |
463d0d15 LP |
800 | #endif |
801 | ||
f2341e0a | 802 | /* Prepare log fields we can use for structured logging */ |
463d0d15 LP |
803 | if (MANAGER_IS_SYSTEM(m)) { |
804 | m->unit_log_field = "UNIT="; | |
805 | m->unit_log_format_string = "UNIT=%s"; | |
4b58153d LP |
806 | |
807 | m->invocation_log_field = "INVOCATION_ID="; | |
f1c50bec | 808 | m->invocation_log_format_string = "INVOCATION_ID=%s"; |
463d0d15 LP |
809 | } else { |
810 | m->unit_log_field = "USER_UNIT="; | |
811 | m->unit_log_format_string = "USER_UNIT=%s"; | |
4b58153d LP |
812 | |
813 | m->invocation_log_field = "USER_INVOCATION_ID="; | |
f1c50bec | 814 | m->invocation_log_format_string = "USER_INVOCATION_ID=%s"; |
463d0d15 | 815 | } |
f2341e0a | 816 | |
2e5c94b9 LP |
817 | /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */ |
818 | RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7); | |
819 | ||
e21fea24 KS |
820 | r = manager_default_environment(m); |
821 | if (r < 0) | |
c70cac54 | 822 | return r; |
1137a57c | 823 | |
d5099efc | 824 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
718db961 | 825 | if (r < 0) |
c70cac54 | 826 | return r; |
60918275 | 827 | |
d5099efc | 828 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
718db961 | 829 | if (r < 0) |
c70cac54 | 830 | return r; |
60918275 | 831 | |
548f6937 | 832 | r = hashmap_ensure_allocated(&m->cgroup_unit, &path_hash_ops); |
718db961 | 833 | if (r < 0) |
c70cac54 | 834 | return r; |
9152c765 | 835 | |
d5099efc | 836 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
718db961 | 837 | if (r < 0) |
c70cac54 | 838 | return r; |
05e343b7 | 839 | |
da8e1782 MO |
840 | r = prioq_ensure_allocated(&m->run_queue, compare_job_priority); |
841 | if (r < 0) | |
842 | return r; | |
843 | ||
e8112e67 | 844 | r = manager_setup_prefix(m); |
718db961 | 845 | if (r < 0) |
c70cac54 | 846 | return r; |
8742514c | 847 | |
e8112e67 | 848 | r = sd_event_default(&m->event); |
8742514c | 849 | if (r < 0) |
c70cac54 | 850 | return r; |
9152c765 | 851 | |
e8112e67 | 852 | r = manager_setup_run_queue(m); |
a1d32bac | 853 | if (r < 0) |
c70cac54 | 854 | return r; |
8e274523 | 855 | |
e8112e67 ZJS |
856 | if (test_run_flags == MANAGER_TEST_RUN_MINIMAL) { |
857 | m->cgroup_root = strdup(""); | |
858 | if (!m->cgroup_root) | |
859 | return -ENOMEM; | |
860 | } else { | |
861 | r = manager_setup_signals(m); | |
862 | if (r < 0) | |
863 | return r; | |
8c47c732 | 864 | |
e8112e67 ZJS |
865 | r = manager_setup_cgroup(m); |
866 | if (r < 0) | |
867 | return r; | |
575b300b | 868 | |
e8112e67 ZJS |
869 | r = manager_setup_time_change(m); |
870 | if (r < 0) | |
871 | return r; | |
9670d583 | 872 | |
bbf5fd8e LP |
873 | r = manager_read_timezone_stat(m); |
874 | if (r < 0) | |
875 | return r; | |
876 | ||
ea5c5f68 | 877 | (void) manager_setup_timezone_change(m); |
bbf5fd8e | 878 | |
e8112e67 ZJS |
879 | r = manager_setup_sigchld_event_source(m); |
880 | if (r < 0) | |
881 | return r; | |
882 | } | |
e27fe688 | 883 | |
5eb397cf | 884 | if (MANAGER_IS_SYSTEM(m) && test_run_flags == 0) { |
d3070fbd LP |
885 | r = mkdir_label("/run/systemd/units", 0755); |
886 | if (r < 0 && r != -EEXIST) | |
c70cac54 | 887 | return r; |
d3070fbd LP |
888 | } |
889 | ||
e27fe688 LP |
890 | m->taint_usr = |
891 | !in_initrd() && | |
892 | dir_is_empty("/usr") > 0; | |
893 | ||
232f6754 ZJS |
894 | /* Note that we do not set up the notify fd here. We do that after deserialization, |
895 | * since they might have gotten serialized across the reexec. */ | |
3536f49e | 896 | |
1cc6c93a YW |
897 | *_m = TAKE_PTR(m); |
898 | ||
8e274523 | 899 | return 0; |
60918275 LP |
900 | } |
901 | ||
d86f9d52 | 902 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 903 | int r; |
d86f9d52 | 904 | |
638cece4 | 905 | if (MANAGER_IS_TEST_RUN(m)) |
0d8c31ff ZJS |
906 | return 0; |
907 | ||
d86f9d52 LP |
908 | if (m->notify_fd < 0) { |
909 | _cleanup_close_ int fd = -1; | |
15a3e96f | 910 | union sockaddr_union sa = {}; |
15a3e96f | 911 | int salen; |
d86f9d52 LP |
912 | |
913 | /* First free all secondary fields */ | |
a1e58e8e | 914 | m->notify_socket = mfree(m->notify_socket); |
d86f9d52 LP |
915 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
916 | ||
917 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
4a62c710 MS |
918 | if (fd < 0) |
919 | return log_error_errno(errno, "Failed to allocate notification socket: %m"); | |
d86f9d52 | 920 | |
a47806fa LP |
921 | fd_inc_rcvbuf(fd, NOTIFY_RCVBUF_SIZE); |
922 | ||
b910cc72 | 923 | m->notify_socket = path_join(m->prefix[EXEC_DIRECTORY_RUNTIME], "systemd/notify"); |
498e87d6 LP |
924 | if (!m->notify_socket) |
925 | return log_oom(); | |
926 | ||
15a3e96f LP |
927 | salen = sockaddr_un_set_path(&sa.un, m->notify_socket); |
928 | if (salen < 0) | |
929 | return log_error_errno(salen, "Notify socket '%s' not valid for AF_UNIX socket address, refusing.", m->notify_socket); | |
930 | ||
498e87d6 | 931 | (void) mkdir_parents_label(m->notify_socket, 0755); |
fbda85b0 | 932 | (void) sockaddr_un_unlink(&sa.un); |
7181dbdb | 933 | |
15a3e96f | 934 | r = bind(fd, &sa.sa, salen); |
4a62c710 | 935 | if (r < 0) |
15a3e96f | 936 | return log_error_errno(errno, "bind(%s) failed: %m", m->notify_socket); |
d86f9d52 | 937 | |
2ff48e98 | 938 | r = setsockopt_int(fd, SOL_SOCKET, SO_PASSCRED, true); |
4a62c710 | 939 | if (r < 0) |
2ff48e98 | 940 | return log_error_errno(r, "SO_PASSCRED failed: %m"); |
d86f9d52 | 941 | |
c10d6bdb | 942 | m->notify_fd = TAKE_FD(fd); |
d86f9d52 LP |
943 | |
944 | log_debug("Using notification socket %s", m->notify_socket); | |
945 | } | |
946 | ||
947 | if (!m->notify_event_source) { | |
151b9b96 | 948 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
895b3a7b MS |
949 | if (r < 0) |
950 | return log_error_errno(r, "Failed to allocate notify event source: %m"); | |
d86f9d52 | 951 | |
d8fdc620 LP |
952 | /* Process notification messages a bit earlier than SIGCHLD, so that we can still identify to which |
953 | * service an exit message belongs. */ | |
575b300b | 954 | r = sd_event_source_set_priority(m->notify_event_source, SD_EVENT_PRIORITY_NORMAL-8); |
23bbb0de MS |
955 | if (r < 0) |
956 | return log_error_errno(r, "Failed to set priority of notify event source: %m"); | |
7dfbe2e3 TG |
957 | |
958 | (void) sd_event_source_set_description(m->notify_event_source, "manager-notify"); | |
d86f9d52 LP |
959 | } |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
d8fdc620 LP |
964 | static int manager_setup_cgroups_agent(Manager *m) { |
965 | ||
966 | static const union sockaddr_union sa = { | |
967 | .un.sun_family = AF_UNIX, | |
968 | .un.sun_path = "/run/systemd/cgroups-agent", | |
969 | }; | |
970 | int r; | |
971 | ||
972 | /* This creates a listening socket we receive cgroups agent messages on. We do not use D-Bus for delivering | |
973 | * these messages from the cgroups agent binary to PID 1, as the cgroups agent binary is very short-living, and | |
974 | * each instance of it needs a new D-Bus connection. Since D-Bus connections are SOCK_STREAM/AF_UNIX, on | |
975 | * overloaded systems the backlog of the D-Bus socket becomes relevant, as not more than the configured number | |
976 | * of D-Bus connections may be queued until the kernel will start dropping further incoming connections, | |
977 | * possibly resulting in lost cgroups agent messages. To avoid this, we'll use a private SOCK_DGRAM/AF_UNIX | |
978 | * socket, where no backlog is relevant as communication may take place without an actual connect() cycle, and | |
979 | * we thus won't lose messages. | |
980 | * | |
981 | * Note that PID 1 will forward the agent message to system bus, so that the user systemd instance may listen | |
982 | * to it. The system instance hence listens on this special socket, but the user instances listen on the system | |
983 | * bus for these messages. */ | |
984 | ||
638cece4 | 985 | if (MANAGER_IS_TEST_RUN(m)) |
d8fdc620 LP |
986 | return 0; |
987 | ||
988 | if (!MANAGER_IS_SYSTEM(m)) | |
989 | return 0; | |
990 | ||
c22800e4 | 991 | r = cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER); |
b4cccbc1 LP |
992 | if (r < 0) |
993 | return log_error_errno(r, "Failed to determine whether unified cgroups hierarchy is used: %m"); | |
994 | if (r > 0) /* We don't need this anymore on the unified hierarchy */ | |
d8fdc620 LP |
995 | return 0; |
996 | ||
997 | if (m->cgroups_agent_fd < 0) { | |
998 | _cleanup_close_ int fd = -1; | |
999 | ||
1000 | /* First free all secondary fields */ | |
1001 | m->cgroups_agent_event_source = sd_event_source_unref(m->cgroups_agent_event_source); | |
1002 | ||
1003 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
1004 | if (fd < 0) | |
1005 | return log_error_errno(errno, "Failed to allocate cgroups agent socket: %m"); | |
1006 | ||
1007 | fd_inc_rcvbuf(fd, CGROUPS_AGENT_RCVBUF_SIZE); | |
1008 | ||
155b6876 | 1009 | (void) sockaddr_un_unlink(&sa.un); |
d8fdc620 LP |
1010 | |
1011 | /* Only allow root to connect to this socket */ | |
1012 | RUN_WITH_UMASK(0077) | |
fc2fffe7 | 1013 | r = bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)); |
d8fdc620 LP |
1014 | if (r < 0) |
1015 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
1016 | ||
0b7e8b32 | 1017 | m->cgroups_agent_fd = TAKE_FD(fd); |
d8fdc620 LP |
1018 | } |
1019 | ||
1020 | if (!m->cgroups_agent_event_source) { | |
1021 | r = sd_event_add_io(m->event, &m->cgroups_agent_event_source, m->cgroups_agent_fd, EPOLLIN, manager_dispatch_cgroups_agent_fd, m); | |
1022 | if (r < 0) | |
1023 | return log_error_errno(r, "Failed to allocate cgroups agent event source: %m"); | |
1024 | ||
cbe83389 LP |
1025 | /* Process cgroups notifications early. Note that when the agent notification is received |
1026 | * we'll just enqueue the unit in the cgroup empty queue, hence pick a high priority than | |
1027 | * that. Also see handling of cgroup inotify for the unified cgroup stuff. */ | |
1028 | r = sd_event_source_set_priority(m->cgroups_agent_event_source, SD_EVENT_PRIORITY_NORMAL-9); | |
d8fdc620 LP |
1029 | if (r < 0) |
1030 | return log_error_errno(r, "Failed to set priority of cgroups agent event source: %m"); | |
1031 | ||
1032 | (void) sd_event_source_set_description(m->cgroups_agent_event_source, "manager-cgroups-agent"); | |
1033 | } | |
1034 | ||
1035 | return 0; | |
1036 | } | |
1037 | ||
00d9ef85 LP |
1038 | static int manager_setup_user_lookup_fd(Manager *m) { |
1039 | int r; | |
1040 | ||
1041 | assert(m); | |
1042 | ||
1043 | /* Set up the socket pair used for passing UID/GID resolution results from forked off processes to PID | |
1044 | * 1. Background: we can't do name lookups (NSS) from PID 1, since it might involve IPC and thus activation, | |
1045 | * and we might hence deadlock on ourselves. Hence we do all user/group lookups asynchronously from the forked | |
1046 | * off processes right before executing the binaries to start. In order to be able to clean up any IPC objects | |
1047 | * created by a unit (see RemoveIPC=) we need to know in PID 1 the used UID/GID of the executed processes, | |
1048 | * hence we establish this communication channel so that forked off processes can pass their UID/GID | |
1049 | * information back to PID 1. The forked off processes send their resolved UID/GID to PID 1 in a simple | |
1050 | * datagram, along with their unit name, so that we can share one communication socket pair among all units for | |
1051 | * this purpose. | |
1052 | * | |
1053 | * You might wonder why we need a communication channel for this that is independent of the usual notification | |
1054 | * socket scheme (i.e. $NOTIFY_SOCKET). The primary difference is about trust: data sent via the $NOTIFY_SOCKET | |
1055 | * channel is only accepted if it originates from the right unit and if reception was enabled for it. The user | |
1056 | * lookup socket OTOH is only accessible by PID 1 and its children until they exec(), and always available. | |
1057 | * | |
1058 | * Note that this function is called under two circumstances: when we first initialize (in which case we | |
1059 | * allocate both the socket pair and the event source to listen on it), and when we deserialize after a reload | |
1060 | * (in which case the socket pair already exists but we still need to allocate the event source for it). */ | |
1061 | ||
1062 | if (m->user_lookup_fds[0] < 0) { | |
1063 | ||
1064 | /* Free all secondary fields */ | |
1065 | safe_close_pair(m->user_lookup_fds); | |
1066 | m->user_lookup_event_source = sd_event_source_unref(m->user_lookup_event_source); | |
1067 | ||
1068 | if (socketpair(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0, m->user_lookup_fds) < 0) | |
1069 | return log_error_errno(errno, "Failed to allocate user lookup socket: %m"); | |
1070 | ||
1071 | (void) fd_inc_rcvbuf(m->user_lookup_fds[0], NOTIFY_RCVBUF_SIZE); | |
1072 | } | |
1073 | ||
1074 | if (!m->user_lookup_event_source) { | |
1075 | r = sd_event_add_io(m->event, &m->user_lookup_event_source, m->user_lookup_fds[0], EPOLLIN, manager_dispatch_user_lookup_fd, m); | |
1076 | if (r < 0) | |
1077 | return log_error_errno(errno, "Failed to allocate user lookup event source: %m"); | |
1078 | ||
1079 | /* Process even earlier than the notify event source, so that we always know first about valid UID/GID | |
1080 | * resolutions */ | |
67ae4e8d | 1081 | r = sd_event_source_set_priority(m->user_lookup_event_source, SD_EVENT_PRIORITY_NORMAL-11); |
00d9ef85 | 1082 | if (r < 0) |
5238e957 | 1083 | return log_error_errno(errno, "Failed to set priority of user lookup event source: %m"); |
00d9ef85 LP |
1084 | |
1085 | (void) sd_event_source_set_description(m->user_lookup_event_source, "user-lookup"); | |
1086 | } | |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
23a177ef | 1091 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 1092 | Unit *u; |
23a177ef LP |
1093 | unsigned n = 0; |
1094 | ||
1095 | assert(m); | |
1096 | ||
595ed347 MS |
1097 | while ((u = m->cleanup_queue)) { |
1098 | assert(u->in_cleanup_queue); | |
23a177ef | 1099 | |
595ed347 | 1100 | unit_free(u); |
23a177ef LP |
1101 | n++; |
1102 | } | |
1103 | ||
1104 | return n; | |
1105 | } | |
1106 | ||
eced69b3 | 1107 | enum { |
35b8ca3a | 1108 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
1109 | GC_OFFSET_UNSURE, /* No clue */ |
1110 | GC_OFFSET_GOOD, /* We still need this unit */ | |
1111 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
1112 | _GC_OFFSET_MAX | |
1113 | }; | |
1114 | ||
00d9ef85 | 1115 | static void unit_gc_mark_good(Unit *u, unsigned gc_marker) { |
4892084f | 1116 | Unit *other; |
eef85c4a LP |
1117 | Iterator i; |
1118 | void *v; | |
4892084f LN |
1119 | |
1120 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; | |
1121 | ||
1122 | /* Recursively mark referenced units as GOOD as well */ | |
eef85c4a | 1123 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_REFERENCES], i) |
4892084f LN |
1124 | if (other->gc_marker == gc_marker + GC_OFFSET_UNSURE) |
1125 | unit_gc_mark_good(other, gc_marker); | |
1126 | } | |
1127 | ||
eced69b3 | 1128 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { |
701cc384 | 1129 | Unit *other; |
eced69b3 | 1130 | bool is_bad; |
eef85c4a LP |
1131 | Iterator i; |
1132 | void *v; | |
701cc384 LP |
1133 | |
1134 | assert(u); | |
1135 | ||
4c701096 YW |
1136 | if (IN_SET(u->gc_marker - gc_marker, |
1137 | GC_OFFSET_GOOD, GC_OFFSET_BAD, GC_OFFSET_UNSURE, GC_OFFSET_IN_PATH)) | |
701cc384 LP |
1138 | return; |
1139 | ||
ac155bb8 | 1140 | if (u->in_cleanup_queue) |
701cc384 LP |
1141 | goto bad; |
1142 | ||
f2f725e5 | 1143 | if (!unit_may_gc(u)) |
701cc384 LP |
1144 | goto good; |
1145 | ||
ac155bb8 | 1146 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
1147 | |
1148 | is_bad = true; | |
1149 | ||
eef85c4a | 1150 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
1151 | unit_gc_sweep(other, gc_marker); |
1152 | ||
ac155bb8 | 1153 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 1154 | goto good; |
eced69b3 | 1155 | |
ac155bb8 | 1156 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 1157 | is_bad = false; |
701cc384 LP |
1158 | } |
1159 | ||
2641f02e ZJS |
1160 | if (u->refs_by_target) { |
1161 | const UnitRef *ref; | |
1162 | ||
1163 | LIST_FOREACH(refs_by_target, ref, u->refs_by_target) { | |
1164 | unit_gc_sweep(ref->source, gc_marker); | |
1165 | ||
1166 | if (ref->source->gc_marker == gc_marker + GC_OFFSET_GOOD) | |
1167 | goto good; | |
1168 | ||
1169 | if (ref->source->gc_marker != gc_marker + GC_OFFSET_BAD) | |
1170 | is_bad = false; | |
1171 | } | |
1172 | } | |
701cc384 | 1173 | |
eced69b3 LP |
1174 | if (is_bad) |
1175 | goto bad; | |
1176 | ||
1177 | /* We were unable to find anything out about this entry, so | |
1178 | * let's investigate it later */ | |
ac155bb8 | 1179 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
1180 | unit_add_to_gc_queue(u); |
1181 | return; | |
1182 | ||
701cc384 | 1183 | bad: |
eced69b3 LP |
1184 | /* We definitely know that this one is not useful anymore, so |
1185 | * let's mark it for deletion */ | |
ac155bb8 | 1186 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 1187 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
1188 | return; |
1189 | ||
1190 | good: | |
4892084f | 1191 | unit_gc_mark_good(u, gc_marker); |
701cc384 LP |
1192 | } |
1193 | ||
c5a97ed1 LP |
1194 | static unsigned manager_dispatch_gc_unit_queue(Manager *m) { |
1195 | unsigned n = 0, gc_marker; | |
595ed347 | 1196 | Unit *u; |
701cc384 LP |
1197 | |
1198 | assert(m); | |
1199 | ||
cf1265e1 | 1200 | /* log_debug("Running GC..."); */ |
701cc384 | 1201 | |
eced69b3 LP |
1202 | m->gc_marker += _GC_OFFSET_MAX; |
1203 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 1204 | m->gc_marker = 1; |
701cc384 | 1205 | |
eced69b3 LP |
1206 | gc_marker = m->gc_marker; |
1207 | ||
c5a97ed1 | 1208 | while ((u = m->gc_unit_queue)) { |
595ed347 | 1209 | assert(u->in_gc_queue); |
701cc384 | 1210 | |
595ed347 | 1211 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 1212 | |
c5a97ed1 | 1213 | LIST_REMOVE(gc_queue, m->gc_unit_queue, u); |
595ed347 | 1214 | u->in_gc_queue = false; |
701cc384 LP |
1215 | |
1216 | n++; | |
1217 | ||
4c701096 YW |
1218 | if (IN_SET(u->gc_marker - gc_marker, |
1219 | GC_OFFSET_BAD, GC_OFFSET_UNSURE)) { | |
cc3bc3e6 | 1220 | if (u->id) |
f2341e0a | 1221 | log_unit_debug(u, "Collecting."); |
595ed347 MS |
1222 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
1223 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
1224 | } |
1225 | } | |
1226 | ||
701cc384 LP |
1227 | return n; |
1228 | } | |
1229 | ||
c5a97ed1 LP |
1230 | static unsigned manager_dispatch_gc_job_queue(Manager *m) { |
1231 | unsigned n = 0; | |
1232 | Job *j; | |
1233 | ||
1234 | assert(m); | |
1235 | ||
1236 | while ((j = m->gc_job_queue)) { | |
1237 | assert(j->in_gc_queue); | |
1238 | ||
1239 | LIST_REMOVE(gc_queue, m->gc_job_queue, j); | |
1240 | j->in_gc_queue = false; | |
1241 | ||
1242 | n++; | |
1243 | ||
2ab3050f | 1244 | if (!job_may_gc(j)) |
c5a97ed1 LP |
1245 | continue; |
1246 | ||
1247 | log_unit_debug(j->unit, "Collecting job."); | |
1248 | (void) job_finish_and_invalidate(j, JOB_COLLECTED, false, false); | |
1249 | } | |
1250 | ||
1251 | return n; | |
1252 | } | |
1253 | ||
a3c1168a LP |
1254 | static unsigned manager_dispatch_stop_when_unneeded_queue(Manager *m) { |
1255 | unsigned n = 0; | |
1256 | Unit *u; | |
1257 | int r; | |
1258 | ||
1259 | assert(m); | |
1260 | ||
1261 | while ((u = m->stop_when_unneeded_queue)) { | |
1262 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
1263 | assert(m->stop_when_unneeded_queue); | |
1264 | ||
1265 | assert(u->in_stop_when_unneeded_queue); | |
1266 | LIST_REMOVE(stop_when_unneeded_queue, m->stop_when_unneeded_queue, u); | |
1267 | u->in_stop_when_unneeded_queue = false; | |
1268 | ||
1269 | n++; | |
1270 | ||
1271 | if (!unit_is_unneeded(u)) | |
1272 | continue; | |
1273 | ||
1274 | log_unit_debug(u, "Unit is not needed anymore."); | |
1275 | ||
1276 | /* If stopping a unit fails continuously we might enter a stop loop here, hence stop acting on the | |
1277 | * service being unnecessary after a while. */ | |
1278 | ||
1279 | if (!ratelimit_below(&u->auto_stop_ratelimit)) { | |
1280 | log_unit_warning(u, "Unit not needed anymore, but not stopping since we tried this too often recently."); | |
1281 | continue; | |
1282 | } | |
1283 | ||
1284 | /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */ | |
50cbaba4 | 1285 | r = manager_add_job(u->manager, JOB_STOP, u, JOB_FAIL, NULL, &error, NULL); |
a3c1168a LP |
1286 | if (r < 0) |
1287 | log_unit_warning_errno(u, r, "Failed to enqueue stop job, ignoring: %s", bus_error_message(&error, r)); | |
1288 | } | |
1289 | ||
1290 | return n; | |
1291 | } | |
1292 | ||
a16e1123 | 1293 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 1294 | Unit *u; |
60918275 LP |
1295 | |
1296 | assert(m); | |
1297 | ||
87f0e418 LP |
1298 | while ((u = hashmap_first(m->units))) |
1299 | unit_free(u); | |
964e0949 LP |
1300 | |
1301 | manager_dispatch_cleanup_queue(m); | |
1302 | ||
1303 | assert(!m->load_queue); | |
da8e1782 | 1304 | assert(prioq_isempty(m->run_queue)); |
964e0949 LP |
1305 | assert(!m->dbus_unit_queue); |
1306 | assert(!m->dbus_job_queue); | |
1307 | assert(!m->cleanup_queue); | |
c5a97ed1 LP |
1308 | assert(!m->gc_unit_queue); |
1309 | assert(!m->gc_job_queue); | |
a3c1168a | 1310 | assert(!m->stop_when_unneeded_queue); |
964e0949 | 1311 | |
964e0949 LP |
1312 | assert(hashmap_isempty(m->jobs)); |
1313 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
1314 | |
1315 | m->n_on_console = 0; | |
1316 | m->n_running_jobs = 0; | |
1e75824c MK |
1317 | m->n_installed_jobs = 0; |
1318 | m->n_failed_jobs = 0; | |
a16e1123 LP |
1319 | } |
1320 | ||
06d8d842 | 1321 | Manager* manager_free(Manager *m) { |
35aba85a | 1322 | ExecDirectoryType dt; |
86036b26 | 1323 | UnitType c; |
87f0e418 | 1324 | |
06d8d842 ZJS |
1325 | if (!m) |
1326 | return NULL; | |
a16e1123 LP |
1327 | |
1328 | manager_clear_jobs_and_units(m); | |
23a177ef | 1329 | |
7824bbeb LP |
1330 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
1331 | if (unit_vtable[c]->shutdown) | |
1332 | unit_vtable[c]->shutdown(m); | |
1333 | ||
86036b26 LP |
1334 | /* Keep the cgroup hierarchy in place except when we know we are going down for good */ |
1335 | manager_shutdown_cgroup(m, IN_SET(m->objective, MANAGER_EXIT, MANAGER_REBOOT, MANAGER_POWEROFF, MANAGER_HALT, MANAGER_KEXEC)); | |
8e274523 | 1336 | |
07a78643 | 1337 | lookup_paths_flush_generator(&m->lookup_paths); |
5a1e9937 | 1338 | |
5e8d1c9a | 1339 | bus_done(m); |
ea430986 | 1340 | |
e8a565cb YW |
1341 | exec_runtime_vacuum(m); |
1342 | hashmap_free(m->exec_runtime_by_id); | |
1343 | ||
29206d46 LP |
1344 | dynamic_user_vacuum(m, false); |
1345 | hashmap_free(m->dynamic_users); | |
1346 | ||
87f0e418 | 1347 | hashmap_free(m->units); |
4b58153d | 1348 | hashmap_free(m->units_by_invocation_id); |
60918275 | 1349 | hashmap_free(m->jobs); |
62a76913 | 1350 | hashmap_free(m->watch_pids); |
05e343b7 | 1351 | hashmap_free(m->watch_bus); |
9152c765 | 1352 | |
da8e1782 MO |
1353 | prioq_free(m->run_queue); |
1354 | ||
95ae05c0 | 1355 | set_free(m->startup_units); |
f755e3b7 LP |
1356 | set_free(m->failed_units); |
1357 | ||
718db961 | 1358 | sd_event_source_unref(m->signal_event_source); |
575b300b | 1359 | sd_event_source_unref(m->sigchld_event_source); |
718db961 | 1360 | sd_event_source_unref(m->notify_event_source); |
d8fdc620 | 1361 | sd_event_source_unref(m->cgroups_agent_event_source); |
718db961 | 1362 | sd_event_source_unref(m->time_change_event_source); |
bbf5fd8e | 1363 | sd_event_source_unref(m->timezone_change_event_source); |
718db961 | 1364 | sd_event_source_unref(m->jobs_in_progress_event_source); |
752b5905 | 1365 | sd_event_source_unref(m->run_queue_event_source); |
00d9ef85 | 1366 | sd_event_source_unref(m->user_lookup_event_source); |
5f109056 | 1367 | sd_event_source_unref(m->sync_bus_names_event_source); |
718db961 | 1368 | |
03e334a1 LP |
1369 | safe_close(m->signal_fd); |
1370 | safe_close(m->notify_fd); | |
d8fdc620 | 1371 | safe_close(m->cgroups_agent_fd); |
03e334a1 | 1372 | safe_close(m->time_change_fd); |
00d9ef85 | 1373 | safe_close_pair(m->user_lookup_fds); |
718db961 | 1374 | |
e46b13c8 ZJS |
1375 | manager_close_ask_password(m); |
1376 | ||
718db961 LP |
1377 | manager_close_idle_pipe(m); |
1378 | ||
1379 | sd_event_unref(m->event); | |
60918275 | 1380 | |
c952c6ec LP |
1381 | free(m->notify_socket); |
1382 | ||
84e3543e | 1383 | lookup_paths_free(&m->lookup_paths); |
1ad6e8b3 LP |
1384 | strv_free(m->transient_environment); |
1385 | strv_free(m->client_environment); | |
036643a2 | 1386 | |
4ad49000 | 1387 | hashmap_free(m->cgroup_unit); |
e8630e69 | 1388 | manager_free_unit_name_maps(m); |
33be102a | 1389 | |
664f88a7 LP |
1390 | free(m->switch_root); |
1391 | free(m->switch_root_init); | |
1392 | ||
31ce987c | 1393 | rlimit_free_all(m->rlimit); |
c93ff2e9 | 1394 | |
a57f7e2c LP |
1395 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
1396 | hashmap_free(m->units_requiring_mounts_for); | |
1397 | ||
00d9ef85 LP |
1398 | hashmap_free(m->uid_refs); |
1399 | hashmap_free(m->gid_refs); | |
1400 | ||
72fd1768 | 1401 | for (dt = 0; dt < _EXEC_DIRECTORY_TYPE_MAX; dt++) |
35aba85a YW |
1402 | m->prefix[dt] = mfree(m->prefix[dt]); |
1403 | ||
6b430fdb | 1404 | return mfree(m); |
60918275 LP |
1405 | } |
1406 | ||
04eb582a LP |
1407 | static void manager_enumerate_perpetual(Manager *m) { |
1408 | UnitType c; | |
1409 | ||
1410 | assert(m); | |
1411 | ||
b1d5246d ZJS |
1412 | if (m->test_run_flags == MANAGER_TEST_RUN_MINIMAL) |
1413 | return; | |
1414 | ||
04eb582a LP |
1415 | /* Let's ask every type to load all units from disk/kernel that it might know */ |
1416 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { | |
1417 | if (!unit_type_supported(c)) { | |
1418 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); | |
1419 | continue; | |
1420 | } | |
1421 | ||
1422 | if (unit_vtable[c]->enumerate_perpetual) | |
1423 | unit_vtable[c]->enumerate_perpetual(m); | |
1424 | } | |
1425 | } | |
1426 | ||
a1113e08 | 1427 | static void manager_enumerate(Manager *m) { |
f50e0a01 | 1428 | UnitType c; |
f50e0a01 LP |
1429 | |
1430 | assert(m); | |
1431 | ||
b1d5246d ZJS |
1432 | if (m->test_run_flags == MANAGER_TEST_RUN_MINIMAL) |
1433 | return; | |
1434 | ||
04eb582a | 1435 | /* Let's ask every type to load all units from disk/kernel that it might know */ |
0faacd47 | 1436 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { |
1c2e9646 | 1437 | if (!unit_type_supported(c)) { |
03afec3c | 1438 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); |
0faacd47 | 1439 | continue; |
a57f7e2c | 1440 | } |
f50e0a01 | 1441 | |
94b01dae ZJS |
1442 | if (unit_vtable[c]->enumerate) |
1443 | unit_vtable[c]->enumerate(m); | |
0faacd47 LP |
1444 | } |
1445 | ||
f50e0a01 | 1446 | manager_dispatch_load_queue(m); |
a16e1123 LP |
1447 | } |
1448 | ||
007c6337 | 1449 | static void manager_coldplug(Manager *m) { |
a16e1123 LP |
1450 | Iterator i; |
1451 | Unit *u; | |
1452 | char *k; | |
007c6337 | 1453 | int r; |
a16e1123 LP |
1454 | |
1455 | assert(m); | |
f50e0a01 | 1456 | |
f0831ed2 LP |
1457 | log_debug("Invoking unit coldplug() handlers…"); |
1458 | ||
1459 | /* Let's place the units back into their deserialized state */ | |
f50e0a01 LP |
1460 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { |
1461 | ||
1462 | /* ignore aliases */ | |
ac155bb8 | 1463 | if (u->id != k) |
f50e0a01 LP |
1464 | continue; |
1465 | ||
007c6337 LP |
1466 | r = unit_coldplug(u); |
1467 | if (r < 0) | |
1468 | log_warning_errno(r, "We couldn't coldplug %s, proceeding anyway: %m", u->id); | |
f50e0a01 | 1469 | } |
a16e1123 LP |
1470 | } |
1471 | ||
f0831ed2 LP |
1472 | static void manager_catchup(Manager *m) { |
1473 | Iterator i; | |
1474 | Unit *u; | |
1475 | char *k; | |
1476 | ||
1477 | assert(m); | |
1478 | ||
1479 | log_debug("Invoking unit catchup() handlers…"); | |
1480 | ||
1481 | /* Let's catch up on any state changes that happened while we were reloading/reexecing */ | |
1482 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
1483 | ||
1484 | /* ignore aliases */ | |
1485 | if (u->id != k) | |
1486 | continue; | |
1487 | ||
1488 | unit_catchup(u); | |
1489 | } | |
1490 | } | |
1491 | ||
9ff1a6f1 | 1492 | static void manager_distribute_fds(Manager *m, FDSet *fds) { |
9588bc32 | 1493 | Iterator i; |
9ff1a6f1 | 1494 | Unit *u; |
9588bc32 LP |
1495 | |
1496 | assert(m); | |
1497 | ||
1498 | HASHMAP_FOREACH(u, m->units, i) { | |
1499 | ||
1500 | if (fdset_size(fds) <= 0) | |
1501 | break; | |
1502 | ||
9ff1a6f1 LP |
1503 | if (!UNIT_VTABLE(u)->distribute_fds) |
1504 | continue; | |
9588bc32 | 1505 | |
9ff1a6f1 LP |
1506 | UNIT_VTABLE(u)->distribute_fds(u, fds); |
1507 | } | |
9588bc32 LP |
1508 | } |
1509 | ||
8559b3b7 LP |
1510 | static bool manager_dbus_is_running(Manager *m, bool deserialized) { |
1511 | Unit *u; | |
1512 | ||
1513 | assert(m); | |
1514 | ||
1515 | /* This checks whether the dbus instance we are supposed to expose our APIs on is up. We check both the socket | |
1516 | * and the service unit. If the 'deserialized' parameter is true we'll check the deserialized state of the unit | |
1517 | * rather than the current one. */ | |
1518 | ||
638cece4 | 1519 | if (MANAGER_IS_TEST_RUN(m)) |
8559b3b7 LP |
1520 | return false; |
1521 | ||
8559b3b7 LP |
1522 | u = manager_get_unit(m, SPECIAL_DBUS_SOCKET); |
1523 | if (!u) | |
1524 | return false; | |
1525 | if ((deserialized ? SOCKET(u)->deserialized_state : SOCKET(u)->state) != SOCKET_RUNNING) | |
1526 | return false; | |
1527 | ||
1528 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1529 | if (!u) | |
1530 | return false; | |
1531 | if (!IN_SET((deserialized ? SERVICE(u)->deserialized_state : SERVICE(u)->state), SERVICE_RUNNING, SERVICE_RELOAD)) | |
1532 | return false; | |
1533 | ||
1534 | return true; | |
1535 | } | |
1536 | ||
9d4c195c LP |
1537 | static void manager_setup_bus(Manager *m) { |
1538 | assert(m); | |
1539 | ||
1540 | /* Let's set up our private bus connection now, unconditionally */ | |
1541 | (void) bus_init_private(m); | |
1542 | ||
1543 | /* If we are in --user mode also connect to the system bus now */ | |
1544 | if (MANAGER_IS_USER(m)) | |
1545 | (void) bus_init_system(m); | |
1546 | ||
1547 | /* Let's connect to the bus now, but only if the unit is supposed to be up */ | |
1548 | if (manager_dbus_is_running(m, MANAGER_IS_RELOADING(m))) { | |
1549 | (void) bus_init_api(m); | |
1550 | ||
1551 | if (MANAGER_IS_SYSTEM(m)) | |
1552 | (void) bus_init_system(m); | |
1553 | } | |
1554 | } | |
1555 | ||
159f1e76 LP |
1556 | static void manager_preset_all(Manager *m) { |
1557 | int r; | |
1558 | ||
1559 | assert(m); | |
1560 | ||
1561 | if (m->first_boot <= 0) | |
1562 | return; | |
1563 | ||
1564 | if (!MANAGER_IS_SYSTEM(m)) | |
1565 | return; | |
1566 | ||
638cece4 | 1567 | if (MANAGER_IS_TEST_RUN(m)) |
159f1e76 LP |
1568 | return; |
1569 | ||
1570 | /* If this is the first boot, and we are in the host system, then preset everything */ | |
1571 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, 0, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, NULL, 0); | |
1572 | if (r < 0) | |
1573 | log_full_errno(r == -EEXIST ? LOG_NOTICE : LOG_WARNING, r, | |
1574 | "Failed to populate /etc with preset unit settings, ignoring: %m"); | |
1575 | else | |
1576 | log_info("Populated /etc with preset unit settings."); | |
1577 | } | |
1578 | ||
5197be06 LP |
1579 | static void manager_vacuum(Manager *m) { |
1580 | assert(m); | |
1581 | ||
1582 | /* Release any dynamic users no longer referenced */ | |
1583 | dynamic_user_vacuum(m, true); | |
1584 | ||
1585 | /* Release any references to UIDs/GIDs no longer referenced, and destroy any IPC owned by them */ | |
1586 | manager_vacuum_uid_refs(m); | |
1587 | manager_vacuum_gid_refs(m); | |
1588 | ||
1589 | /* Release any runtimes no longer referenced */ | |
1590 | exec_runtime_vacuum(m); | |
1591 | } | |
1592 | ||
5ce5e1ad LP |
1593 | static void manager_ready(Manager *m) { |
1594 | assert(m); | |
1595 | ||
1596 | /* After having loaded everything, do the final round of catching up with what might have changed */ | |
1597 | ||
1598 | m->objective = MANAGER_OK; /* Tell everyone we are up now */ | |
1599 | ||
1600 | /* It might be safe to log to the journal now and connect to dbus */ | |
1601 | manager_recheck_journal(m); | |
1602 | manager_recheck_dbus(m); | |
1603 | ||
1604 | /* Sync current state of bus names with our set of listening units */ | |
1605 | (void) manager_enqueue_sync_bus_names(m); | |
1606 | ||
1607 | /* Let's finally catch up with any changes that took place while we were reloading/reexecing */ | |
1608 | manager_catchup(m); | |
c6e892bc YW |
1609 | |
1610 | m->honor_device_enumeration = true; | |
5ce5e1ad LP |
1611 | } |
1612 | ||
d147e2b6 ZJS |
1613 | static Manager* manager_reloading_start(Manager *m) { |
1614 | m->n_reloading++; | |
1615 | return m; | |
1616 | } | |
1617 | static void manager_reloading_stopp(Manager **m) { | |
1618 | if (*m) { | |
1619 | assert((*m)->n_reloading > 0); | |
1620 | (*m)->n_reloading--; | |
1621 | } | |
1622 | } | |
1623 | ||
a16e1123 | 1624 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
17f01ace | 1625 | int r; |
a16e1123 LP |
1626 | |
1627 | assert(m); | |
1628 | ||
a1f31f47 ZJS |
1629 | /* If we are running in test mode, we still want to run the generators, |
1630 | * but we should not touch the real generator directories. */ | |
1631 | r = lookup_paths_init(&m->lookup_paths, m->unit_file_scope, | |
638cece4 | 1632 | MANAGER_IS_TEST_RUN(m) ? LOOKUP_PATHS_TEMPORARY_GENERATED : 0, |
a1f31f47 | 1633 | NULL); |
e801700e | 1634 | if (r < 0) |
572986ca | 1635 | return log_error_errno(r, "Failed to initialize path lookup table: %m"); |
5a1e9937 | 1636 | |
d4ee7bd8 | 1637 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_GENERATORS_START)); |
eb523bfb LP |
1638 | r = manager_run_environment_generators(m); |
1639 | if (r >= 0) | |
1640 | r = manager_run_generators(m); | |
d4ee7bd8 | 1641 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_GENERATORS_FINISH)); |
07719a21 LP |
1642 | if (r < 0) |
1643 | return r; | |
1644 | ||
159f1e76 | 1645 | manager_preset_all(m); |
572986ca | 1646 | |
581fef8d | 1647 | lookup_paths_log(&m->lookup_paths); |
572986ca | 1648 | |
4df7d537 ZJS |
1649 | { |
1650 | /* This block is (optionally) done with the reloading counter bumped */ | |
1651 | _cleanup_(manager_reloading_stopp) Manager *reloading = NULL; | |
1652 | ||
1653 | /* If we will deserialize make sure that during enumeration this is already known, so we increase the | |
1654 | * counter here already */ | |
1655 | if (serialization) | |
1656 | reloading = manager_reloading_start(m); | |
1657 | ||
1658 | /* First, enumerate what we can from all config files */ | |
1659 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_UNITS_LOAD_START)); | |
1660 | manager_enumerate_perpetual(m); | |
1661 | manager_enumerate(m); | |
1662 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_UNITS_LOAD_FINISH)); | |
1663 | ||
1664 | /* Second, deserialize if there is something to deserialize */ | |
1665 | if (serialization) { | |
1666 | r = manager_deserialize(m, serialization, fds); | |
1667 | if (r < 0) | |
1668 | return log_error_errno(r, "Deserialization failed: %m"); | |
1669 | } | |
01e10de3 | 1670 | |
4df7d537 ZJS |
1671 | /* Any fds left? Find some unit which wants them. This is useful to allow container managers to pass |
1672 | * some file descriptors to us pre-initialized. This enables socket-based activation of entire | |
1673 | * containers. */ | |
1674 | manager_distribute_fds(m, fds); | |
d86f9d52 | 1675 | |
4df7d537 ZJS |
1676 | /* We might have deserialized the notify fd, but if we didn't then let's create the bus now */ |
1677 | r = manager_setup_notify(m); | |
1678 | if (r < 0) | |
1679 | /* No sense to continue without notifications, our children would fail anyway. */ | |
1680 | return r; | |
d8fdc620 | 1681 | |
4df7d537 ZJS |
1682 | r = manager_setup_cgroups_agent(m); |
1683 | if (r < 0) | |
1684 | /* Likewise, no sense to continue without empty cgroup notifications. */ | |
1685 | return r; | |
00d9ef85 | 1686 | |
4df7d537 ZJS |
1687 | r = manager_setup_user_lookup_fd(m); |
1688 | if (r < 0) | |
1689 | /* This shouldn't fail, except if things are really broken. */ | |
1690 | return r; | |
8559b3b7 | 1691 | |
4df7d537 ZJS |
1692 | /* Connect to the bus if we are good for it */ |
1693 | manager_setup_bus(m); | |
e3dd987c | 1694 | |
5238e957 | 1695 | /* Now that we are connected to all possible buses, let's deserialize who is tracking us. */ |
4df7d537 ZJS |
1696 | r = bus_track_coldplug(m, &m->subscribed, false, m->deserialized_subscribed); |
1697 | if (r < 0) | |
1698 | log_warning_errno(r, "Failed to deserialized tracked clients, ignoring: %m"); | |
1699 | m->deserialized_subscribed = strv_free(m->deserialized_subscribed); | |
a16e1123 | 1700 | |
4df7d537 ZJS |
1701 | /* Third, fire things up! */ |
1702 | manager_coldplug(m); | |
3ad2afb6 | 1703 | |
4df7d537 ZJS |
1704 | /* Clean up runtime objects */ |
1705 | manager_vacuum(m); | |
71445ae7 | 1706 | |
4df7d537 ZJS |
1707 | if (serialization) |
1708 | /* Let's wait for the UnitNew/JobNew messages being sent, before we notify that the | |
1709 | * reload is finished */ | |
1710 | m->send_reloading_done = true; | |
9f611ad8 LP |
1711 | } |
1712 | ||
5ce5e1ad | 1713 | manager_ready(m); |
f0831ed2 | 1714 | |
17f01ace | 1715 | return 0; |
f50e0a01 LP |
1716 | } |
1717 | ||
50cbaba4 LP |
1718 | int manager_add_job( |
1719 | Manager *m, | |
1720 | JobType type, | |
1721 | Unit *unit, | |
1722 | JobMode mode, | |
1723 | Set *affected_jobs, | |
1724 | sd_bus_error *error, | |
1725 | Job **ret) { | |
1726 | ||
7527cb52 | 1727 | Transaction *tr; |
50cbaba4 | 1728 | int r; |
e5b5ae50 LP |
1729 | |
1730 | assert(m); | |
1731 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1732 | assert(unit); |
e5b5ae50 | 1733 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1734 | |
7358dc02 | 1735 | if (mode == JOB_ISOLATE && type != JOB_START) |
50cbaba4 | 1736 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 1737 | |
7358dc02 | 1738 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
50cbaba4 | 1739 | return sd_bus_error_setf(error, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 | 1740 | |
f2341e0a | 1741 | log_unit_debug(unit, "Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); |
9f04bd52 | 1742 | |
c6497ccb | 1743 | type = job_type_collapse(type, unit); |
e0209d83 | 1744 | |
23ade460 | 1745 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1746 | if (!tr) |
1747 | return -ENOMEM; | |
11dd41ce | 1748 | |
4bd29fe5 | 1749 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, false, |
3742095b | 1750 | IN_SET(mode, JOB_IGNORE_DEPENDENCIES, JOB_IGNORE_REQUIREMENTS), |
50cbaba4 | 1751 | mode == JOB_IGNORE_DEPENDENCIES, error); |
7527cb52 MS |
1752 | if (r < 0) |
1753 | goto tr_abort; | |
c497c7a9 | 1754 | |
7527cb52 MS |
1755 | if (mode == JOB_ISOLATE) { |
1756 | r = transaction_add_isolate_jobs(tr, m); | |
1757 | if (r < 0) | |
1758 | goto tr_abort; | |
1759 | } | |
1760 | ||
50cbaba4 | 1761 | r = transaction_activate(tr, m, mode, affected_jobs, error); |
7527cb52 MS |
1762 | if (r < 0) |
1763 | goto tr_abort; | |
e5b5ae50 | 1764 | |
f2341e0a | 1765 | log_unit_debug(unit, |
66870f90 ZJS |
1766 | "Enqueued job %s/%s as %u", unit->id, |
1767 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1768 | |
50cbaba4 LP |
1769 | if (ret) |
1770 | *ret = tr->anchor_job; | |
60918275 | 1771 | |
7527cb52 | 1772 | transaction_free(tr); |
e5b5ae50 | 1773 | return 0; |
7527cb52 MS |
1774 | |
1775 | tr_abort: | |
1776 | transaction_abort(tr); | |
1777 | transaction_free(tr); | |
1778 | return r; | |
e5b5ae50 | 1779 | } |
60918275 | 1780 | |
50cbaba4 | 1781 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, Set *affected_jobs, sd_bus_error *e, Job **ret) { |
4440b27d | 1782 | Unit *unit = NULL; /* just to appease gcc, initialization is not really necessary */ |
28247076 LP |
1783 | int r; |
1784 | ||
1785 | assert(m); | |
1786 | assert(type < _JOB_TYPE_MAX); | |
1787 | assert(name); | |
1788 | assert(mode < _JOB_MODE_MAX); | |
1789 | ||
c3090674 LP |
1790 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1791 | if (r < 0) | |
28247076 | 1792 | return r; |
4440b27d | 1793 | assert(unit); |
28247076 | 1794 | |
50cbaba4 | 1795 | return manager_add_job(m, type, unit, mode, affected_jobs, e, ret); |
53f18416 LP |
1796 | } |
1797 | ||
50cbaba4 | 1798 | int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Set *affected_jobs, Job **ret) { |
4afd3348 | 1799 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
53f18416 LP |
1800 | int r; |
1801 | ||
1802 | assert(m); | |
1803 | assert(type < _JOB_TYPE_MAX); | |
1804 | assert(name); | |
1805 | assert(mode < _JOB_MODE_MAX); | |
1806 | ||
50cbaba4 | 1807 | r = manager_add_job_by_name(m, type, name, mode, affected_jobs, &error, ret); |
53f18416 LP |
1808 | if (r < 0) |
1809 | return log_warning_errno(r, "Failed to enqueue %s job for %s: %s", job_mode_to_string(mode), name, bus_error_message(&error, r)); | |
1810 | ||
1811 | return r; | |
28247076 LP |
1812 | } |
1813 | ||
15d167f8 JW |
1814 | int manager_propagate_reload(Manager *m, Unit *unit, JobMode mode, sd_bus_error *e) { |
1815 | int r; | |
1816 | Transaction *tr; | |
1817 | ||
1818 | assert(m); | |
1819 | assert(unit); | |
1820 | assert(mode < _JOB_MODE_MAX); | |
1821 | assert(mode != JOB_ISOLATE); /* Isolate is only valid for start */ | |
1822 | ||
1823 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); | |
1824 | if (!tr) | |
1825 | return -ENOMEM; | |
1826 | ||
1827 | /* We need an anchor job */ | |
1828 | r = transaction_add_job_and_dependencies(tr, JOB_NOP, unit, NULL, false, false, true, true, e); | |
1829 | if (r < 0) | |
1830 | goto tr_abort; | |
1831 | ||
1832 | /* Failure in adding individual dependencies is ignored, so this always succeeds. */ | |
1833 | transaction_add_propagate_reload_jobs(tr, unit, tr->anchor_job, mode == JOB_IGNORE_DEPENDENCIES, e); | |
1834 | ||
50cbaba4 | 1835 | r = transaction_activate(tr, m, mode, NULL, e); |
15d167f8 JW |
1836 | if (r < 0) |
1837 | goto tr_abort; | |
1838 | ||
1839 | transaction_free(tr); | |
1840 | return 0; | |
1841 | ||
1842 | tr_abort: | |
1843 | transaction_abort(tr); | |
1844 | transaction_free(tr); | |
1845 | return r; | |
1846 | } | |
1847 | ||
60918275 LP |
1848 | Job *manager_get_job(Manager *m, uint32_t id) { |
1849 | assert(m); | |
1850 | ||
1851 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1852 | } | |
1853 | ||
87f0e418 | 1854 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1855 | assert(m); |
1856 | assert(name); | |
1857 | ||
87f0e418 | 1858 | return hashmap_get(m->units, name); |
60918275 LP |
1859 | } |
1860 | ||
19496554 MS |
1861 | static int manager_dispatch_target_deps_queue(Manager *m) { |
1862 | Unit *u; | |
1863 | unsigned k; | |
1864 | int r = 0; | |
1865 | ||
1866 | static const UnitDependency deps[] = { | |
1867 | UNIT_REQUIRED_BY, | |
1868 | UNIT_REQUISITE_OF, | |
1869 | UNIT_WANTED_BY, | |
1870 | UNIT_BOUND_BY | |
1871 | }; | |
1872 | ||
1873 | assert(m); | |
1874 | ||
1875 | while ((u = m->target_deps_queue)) { | |
1876 | assert(u->in_target_deps_queue); | |
1877 | ||
1878 | LIST_REMOVE(target_deps_queue, u->manager->target_deps_queue, u); | |
1879 | u->in_target_deps_queue = false; | |
1880 | ||
1881 | for (k = 0; k < ELEMENTSOF(deps); k++) { | |
1882 | Unit *target; | |
1883 | Iterator i; | |
1884 | void *v; | |
1885 | ||
1886 | HASHMAP_FOREACH_KEY(v, target, u->dependencies[deps[k]], i) { | |
1887 | r = unit_add_default_target_dependency(u, target); | |
1888 | if (r < 0) | |
1889 | return r; | |
1890 | } | |
1891 | } | |
1892 | } | |
1893 | ||
1894 | return r; | |
1895 | } | |
1896 | ||
c1e1601e | 1897 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1898 | Unit *u; |
c1e1601e | 1899 | unsigned n = 0; |
60918275 LP |
1900 | |
1901 | assert(m); | |
1902 | ||
223dabab LP |
1903 | /* Make sure we are not run recursively */ |
1904 | if (m->dispatching_load_queue) | |
c1e1601e | 1905 | return 0; |
223dabab LP |
1906 | |
1907 | m->dispatching_load_queue = true; | |
1908 | ||
87f0e418 | 1909 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1910 | * tries to load its data until the queue is empty */ |
1911 | ||
595ed347 MS |
1912 | while ((u = m->load_queue)) { |
1913 | assert(u->in_load_queue); | |
034c6ed7 | 1914 | |
595ed347 | 1915 | unit_load(u); |
c1e1601e | 1916 | n++; |
60918275 LP |
1917 | } |
1918 | ||
223dabab | 1919 | m->dispatching_load_queue = false; |
19496554 MS |
1920 | |
1921 | /* Dispatch the units waiting for their target dependencies to be added now, as all targets that we know about | |
1922 | * should be loaded and have aliases resolved */ | |
1923 | (void) manager_dispatch_target_deps_queue(m); | |
1924 | ||
c1e1601e | 1925 | return n; |
60918275 LP |
1926 | } |
1927 | ||
c2756a68 LP |
1928 | int manager_load_unit_prepare( |
1929 | Manager *m, | |
1930 | const char *name, | |
1931 | const char *path, | |
718db961 | 1932 | sd_bus_error *e, |
c2756a68 LP |
1933 | Unit **_ret) { |
1934 | ||
dc409696 | 1935 | _cleanup_(unit_freep) Unit *cleanup_ret = NULL; |
87f0e418 | 1936 | Unit *ret; |
7d17cfbc | 1937 | UnitType t; |
60918275 LP |
1938 | int r; |
1939 | ||
1940 | assert(m); | |
9e2f7c11 | 1941 | assert(name || path); |
7a6a095a | 1942 | assert(_ret); |
60918275 | 1943 | |
db06e3b6 LP |
1944 | /* This will prepare the unit for loading, but not actually |
1945 | * load anything from disk. */ | |
0301abf4 | 1946 | |
718db961 LP |
1947 | if (path && !is_path(path)) |
1948 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1949 | |
1950 | if (!name) | |
2b6bf07d | 1951 | name = basename(path); |
9e2f7c11 | 1952 | |
7d17cfbc MS |
1953 | t = unit_name_to_type(name); |
1954 | ||
5d512d54 LN |
1955 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) { |
1956 | if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) | |
1957 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is missing the instance name.", name); | |
1958 | ||
718db961 | 1959 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
5d512d54 | 1960 | } |
60918275 | 1961 | |
7d17cfbc MS |
1962 | ret = manager_get_unit(m, name); |
1963 | if (ret) { | |
034c6ed7 | 1964 | *_ret = ret; |
413d6313 | 1965 | return 1; |
034c6ed7 | 1966 | } |
60918275 | 1967 | |
dc409696 | 1968 | ret = cleanup_ret = unit_new(m, unit_vtable[t]->object_size); |
7d17cfbc | 1969 | if (!ret) |
60918275 LP |
1970 | return -ENOMEM; |
1971 | ||
7d17cfbc | 1972 | if (path) { |
ac155bb8 | 1973 | ret->fragment_path = strdup(path); |
dc409696 | 1974 | if (!ret->fragment_path) |
0301abf4 | 1975 | return -ENOMEM; |
7d17cfbc | 1976 | } |
0301abf4 | 1977 | |
1058cbf2 | 1978 | r = unit_add_name(ret, name); |
dc409696 | 1979 | if (r < 0) |
1ffba6fe | 1980 | return r; |
60918275 | 1981 | |
87f0e418 | 1982 | unit_add_to_load_queue(ret); |
c1e1601e | 1983 | unit_add_to_dbus_queue(ret); |
949061f0 | 1984 | unit_add_to_gc_queue(ret); |
c1e1601e | 1985 | |
7a6a095a | 1986 | *_ret = ret; |
dc409696 | 1987 | cleanup_ret = NULL; |
db06e3b6 LP |
1988 | |
1989 | return 0; | |
1990 | } | |
1991 | ||
c2756a68 LP |
1992 | int manager_load_unit( |
1993 | Manager *m, | |
1994 | const char *name, | |
1995 | const char *path, | |
718db961 | 1996 | sd_bus_error *e, |
c2756a68 LP |
1997 | Unit **_ret) { |
1998 | ||
db06e3b6 LP |
1999 | int r; |
2000 | ||
2001 | assert(m); | |
7a6a095a | 2002 | assert(_ret); |
db06e3b6 LP |
2003 | |
2004 | /* This will load the service information files, but not actually | |
2005 | * start any services or anything. */ | |
2006 | ||
c3090674 LP |
2007 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
2008 | if (r != 0) | |
db06e3b6 LP |
2009 | return r; |
2010 | ||
f50e0a01 | 2011 | manager_dispatch_load_queue(m); |
60918275 | 2012 | |
7a6a095a | 2013 | *_ret = unit_follow_merge(*_ret); |
4109ede7 ZJS |
2014 | return 0; |
2015 | } | |
2016 | ||
2017 | int manager_load_startable_unit_or_warn( | |
2018 | Manager *m, | |
2019 | const char *name, | |
2020 | const char *path, | |
2021 | Unit **ret) { | |
2022 | ||
2023 | /* Load a unit, make sure it loaded fully and is not masked. */ | |
2024 | ||
2025 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
2026 | Unit *unit; | |
2027 | int r; | |
2028 | ||
2029 | r = manager_load_unit(m, name, path, &error, &unit); | |
2030 | if (r < 0) | |
2031 | return log_error_errno(r, "Failed to load %s %s: %s", | |
8ace1db7 | 2032 | name ? "unit" : "unit file", name ?: path, |
4109ede7 | 2033 | bus_error_message(&error, r)); |
8ace1db7 LP |
2034 | |
2035 | r = bus_unit_validate_load_state(unit, &error); | |
2036 | if (r < 0) | |
2037 | return log_error_errno(r, "%s", bus_error_message(&error, r)); | |
9e2f7c11 | 2038 | |
4109ede7 | 2039 | *ret = unit; |
60918275 LP |
2040 | return 0; |
2041 | } | |
a66d02c3 | 2042 | |
cea8e32e | 2043 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 2044 | Iterator i; |
a66d02c3 LP |
2045 | Job *j; |
2046 | ||
2047 | assert(s); | |
2048 | assert(f); | |
2049 | ||
034c6ed7 | 2050 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 2051 | job_dump(j, f, prefix); |
a66d02c3 LP |
2052 | } |
2053 | ||
87f0e418 | 2054 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 2055 | Iterator i; |
87f0e418 | 2056 | Unit *u; |
11dd41ce | 2057 | const char *t; |
a66d02c3 LP |
2058 | |
2059 | assert(s); | |
2060 | assert(f); | |
2061 | ||
87f0e418 | 2062 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 2063 | if (u->id == t) |
87f0e418 | 2064 | unit_dump(u, f, prefix); |
a66d02c3 | 2065 | } |
7fad411c | 2066 | |
ad75b9e7 LP |
2067 | void manager_dump(Manager *m, FILE *f, const char *prefix) { |
2068 | ManagerTimestamp q; | |
2069 | ||
2070 | assert(m); | |
2071 | assert(f); | |
2072 | ||
2073 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { | |
34541295 ZJS |
2074 | const dual_timestamp *t = m->timestamps + q; |
2075 | char buf[CONST_MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)]; | |
ad75b9e7 | 2076 | |
34541295 | 2077 | if (dual_timestamp_is_set(t)) |
ad75b9e7 LP |
2078 | fprintf(f, "%sTimestamp %s: %s\n", |
2079 | strempty(prefix), | |
2080 | manager_timestamp_to_string(q), | |
34541295 ZJS |
2081 | timestamp_is_set(t->realtime) ? format_timestamp(buf, sizeof buf, t->realtime) : |
2082 | format_timespan(buf, sizeof buf, t->monotonic, 1)); | |
ad75b9e7 LP |
2083 | } |
2084 | ||
2085 | manager_dump_units(m, f, prefix); | |
2086 | manager_dump_jobs(m, f, prefix); | |
2087 | } | |
2088 | ||
713f6f90 LP |
2089 | int manager_get_dump_string(Manager *m, char **ret) { |
2090 | _cleanup_free_ char *dump = NULL; | |
2091 | _cleanup_fclose_ FILE *f = NULL; | |
2092 | size_t size; | |
2093 | int r; | |
2094 | ||
2095 | assert(m); | |
2096 | assert(ret); | |
2097 | ||
2fe21124 | 2098 | f = open_memstream_unlocked(&dump, &size); |
713f6f90 LP |
2099 | if (!f) |
2100 | return -errno; | |
2101 | ||
713f6f90 LP |
2102 | manager_dump(m, f, NULL); |
2103 | ||
2104 | r = fflush_and_check(f); | |
2105 | if (r < 0) | |
2106 | return r; | |
2107 | ||
2108 | f = safe_fclose(f); | |
2109 | ||
1cc6c93a | 2110 | *ret = TAKE_PTR(dump); |
713f6f90 LP |
2111 | |
2112 | return 0; | |
2113 | } | |
2114 | ||
7fad411c LP |
2115 | void manager_clear_jobs(Manager *m) { |
2116 | Job *j; | |
2117 | ||
2118 | assert(m); | |
2119 | ||
7fad411c | 2120 | while ((j = hashmap_first(m->jobs))) |
5273510e | 2121 | /* No need to recurse. We're cancelling all jobs. */ |
833f92ad | 2122 | job_finish_and_invalidate(j, JOB_CANCELED, false, false); |
7fad411c | 2123 | } |
83c60c9f | 2124 | |
f75f613d FB |
2125 | void manager_unwatch_pid(Manager *m, pid_t pid) { |
2126 | assert(m); | |
2127 | ||
2128 | /* First let's drop the unit keyed as "pid". */ | |
2129 | (void) hashmap_remove(m->watch_pids, PID_TO_PTR(pid)); | |
2130 | ||
2131 | /* Then, let's also drop the array keyed by -pid. */ | |
2132 | free(hashmap_remove(m->watch_pids, PID_TO_PTR(-pid))); | |
2133 | } | |
2134 | ||
752b5905 LP |
2135 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
2136 | Manager *m = userdata; | |
83c60c9f | 2137 | Job *j; |
034c6ed7 | 2138 | |
752b5905 LP |
2139 | assert(source); |
2140 | assert(m); | |
9152c765 | 2141 | |
da8e1782 | 2142 | while ((j = prioq_peek(m->run_queue))) { |
ac1135be | 2143 | assert(j->installed); |
034c6ed7 LP |
2144 | assert(j->in_run_queue); |
2145 | ||
6e64994d | 2146 | (void) job_run_and_invalidate(j); |
9152c765 | 2147 | } |
034c6ed7 | 2148 | |
a0b64226 | 2149 | if (m->n_running_jobs > 0) |
03b717a3 MS |
2150 | manager_watch_jobs_in_progress(m); |
2151 | ||
31a7eb86 ZJS |
2152 | if (m->n_on_console > 0) |
2153 | manager_watch_idle_pipe(m); | |
2154 | ||
752b5905 | 2155 | return 1; |
c1e1601e LP |
2156 | } |
2157 | ||
9588bc32 | 2158 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
e0a08581 | 2159 | unsigned n = 0, budget; |
595ed347 | 2160 | Unit *u; |
e0a08581 | 2161 | Job *j; |
c1e1601e LP |
2162 | |
2163 | assert(m); | |
2164 | ||
b8d381c4 LP |
2165 | /* When we are reloading, let's not wait with generating signals, since we need to exit the manager as quickly |
2166 | * as we can. There's no point in throttling generation of signals in that case. */ | |
2167 | if (MANAGER_IS_RELOADING(m) || m->send_reloading_done || m->pending_reload_message) | |
2168 | budget = (unsigned) -1; /* infinite budget in this case */ | |
2169 | else { | |
2170 | /* Anything to do at all? */ | |
2171 | if (!m->dbus_unit_queue && !m->dbus_job_queue) | |
2172 | return 0; | |
2173 | ||
2174 | /* Do we have overly many messages queued at the moment? If so, let's not enqueue more on top, let's | |
2175 | * sit this cycle out, and process things in a later cycle when the queues got a bit emptier. */ | |
2176 | if (manager_bus_n_queued_write(m) > MANAGER_BUS_BUSY_THRESHOLD) | |
2177 | return 0; | |
2178 | ||
2179 | /* Only process a certain number of units/jobs per event loop iteration. Even if the bus queue wasn't | |
2180 | * overly full before this call we shouldn't increase it in size too wildly in one step, and we | |
2181 | * shouldn't monopolize CPU time with generating these messages. Note the difference in counting of | |
2182 | * this "budget" and the "threshold" above: the "budget" is decreased only once per generated message, | |
5238e957 BB |
2183 | * regardless how many buses/direct connections it is enqueued on, while the "threshold" is applied to |
2184 | * each queued instance of bus message, i.e. if the same message is enqueued to five buses/direct | |
b8d381c4 LP |
2185 | * connections it will be counted five times. This difference in counting ("references" |
2186 | * vs. "instances") is primarily a result of the fact that it's easier to implement it this way, | |
2187 | * however it also reflects the thinking that the "threshold" should put a limit on used queue memory, | |
2188 | * i.e. space, while the "budget" should put a limit on time. Also note that the "threshold" is | |
2189 | * currently chosen much higher than the "budget". */ | |
2190 | budget = MANAGER_BUS_MESSAGE_BUDGET; | |
2191 | } | |
e0a08581 | 2192 | |
b8d381c4 | 2193 | while (budget != 0 && (u = m->dbus_unit_queue)) { |
e0a08581 | 2194 | |
595ed347 | 2195 | assert(u->in_dbus_queue); |
c1e1601e | 2196 | |
595ed347 | 2197 | bus_unit_send_change_signal(u); |
b8d381c4 LP |
2198 | n++; |
2199 | ||
2200 | if (budget != (unsigned) -1) | |
2201 | budget--; | |
c1e1601e LP |
2202 | } |
2203 | ||
b8d381c4 | 2204 | while (budget != 0 && (j = m->dbus_job_queue)) { |
c1e1601e LP |
2205 | assert(j->in_dbus_queue); |
2206 | ||
2207 | bus_job_send_change_signal(j); | |
b8d381c4 LP |
2208 | n++; |
2209 | ||
2210 | if (budget != (unsigned) -1) | |
2211 | budget--; | |
c1e1601e LP |
2212 | } |
2213 | ||
b8d381c4 | 2214 | if (m->send_reloading_done) { |
71445ae7 | 2215 | m->send_reloading_done = false; |
718db961 | 2216 | bus_manager_send_reloading(m, false); |
b8d381c4 | 2217 | n++; |
71445ae7 LP |
2218 | } |
2219 | ||
b8d381c4 | 2220 | if (m->pending_reload_message) { |
209de525 | 2221 | bus_send_pending_reload_message(m); |
e0a08581 LP |
2222 | n++; |
2223 | } | |
718db961 | 2224 | |
c1e1601e | 2225 | return n; |
9152c765 LP |
2226 | } |
2227 | ||
d8fdc620 LP |
2228 | static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2229 | Manager *m = userdata; | |
60473f0c | 2230 | char buf[PATH_MAX]; |
d8fdc620 LP |
2231 | ssize_t n; |
2232 | ||
2233 | n = recv(fd, buf, sizeof(buf), 0); | |
2234 | if (n < 0) | |
2235 | return log_error_errno(errno, "Failed to read cgroups agent message: %m"); | |
2236 | if (n == 0) { | |
2237 | log_error("Got zero-length cgroups agent message, ignoring."); | |
2238 | return 0; | |
2239 | } | |
2240 | if ((size_t) n >= sizeof(buf)) { | |
2241 | log_error("Got overly long cgroups agent message, ignoring."); | |
2242 | return 0; | |
2243 | } | |
2244 | ||
2245 | if (memchr(buf, 0, n)) { | |
2246 | log_error("Got cgroups agent message with embedded NUL byte, ignoring."); | |
2247 | return 0; | |
2248 | } | |
2249 | buf[n] = 0; | |
2250 | ||
2251 | manager_notify_cgroup_empty(m, buf); | |
d5f15326 | 2252 | (void) bus_forward_agent_released(m, buf); |
d8fdc620 LP |
2253 | |
2254 | return 0; | |
2255 | } | |
2256 | ||
db256aab LP |
2257 | static void manager_invoke_notify_message( |
2258 | Manager *m, | |
2259 | Unit *u, | |
2260 | const struct ucred *ucred, | |
2261 | const char *buf, | |
2262 | FDSet *fds) { | |
2263 | ||
5ba6985b LP |
2264 | assert(m); |
2265 | assert(u); | |
db256aab | 2266 | assert(ucred); |
5ba6985b | 2267 | assert(buf); |
5ba6985b | 2268 | |
62a76913 | 2269 | if (u->notifygen == m->notifygen) /* Already invoked on this same unit in this same iteration? */ |
5ba6985b | 2270 | return; |
62a76913 LP |
2271 | u->notifygen = m->notifygen; |
2272 | ||
2273 | if (UNIT_VTABLE(u)->notify_message) { | |
2274 | _cleanup_strv_free_ char **tags = NULL; | |
2275 | ||
2276 | tags = strv_split(buf, NEWLINE); | |
2277 | if (!tags) { | |
2278 | log_oom(); | |
2279 | return; | |
2280 | } | |
5ba6985b | 2281 | |
db256aab | 2282 | UNIT_VTABLE(u)->notify_message(u, ucred, tags, fds); |
62a76913 LP |
2283 | |
2284 | } else if (DEBUG_LOGGING) { | |
a86b7675 ZJS |
2285 | _cleanup_free_ char *x = NULL, *y = NULL; |
2286 | ||
da5fb861 | 2287 | x = ellipsize(buf, 20, 90); |
a86b7675 | 2288 | if (x) |
da5fb861 LP |
2289 | y = cescape(x); |
2290 | ||
a86b7675 ZJS |
2291 | log_unit_debug(u, "Got notification message \"%s\", ignoring.", strnull(y)); |
2292 | } | |
5ba6985b LP |
2293 | } |
2294 | ||
718db961 | 2295 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
3d0b8a55 | 2296 | |
b215b0ed | 2297 | _cleanup_fdset_free_ FDSet *fds = NULL; |
718db961 | 2298 | Manager *m = userdata; |
b215b0ed DH |
2299 | char buf[NOTIFY_BUFFER_MAX+1]; |
2300 | struct iovec iovec = { | |
2301 | .iov_base = buf, | |
2302 | .iov_len = sizeof(buf)-1, | |
2303 | }; | |
2304 | union { | |
2305 | struct cmsghdr cmsghdr; | |
2306 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
2307 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
2308 | } control = {}; | |
2309 | struct msghdr msghdr = { | |
2310 | .msg_iov = &iovec, | |
2311 | .msg_iovlen = 1, | |
2312 | .msg_control = &control, | |
2313 | .msg_controllen = sizeof(control), | |
2314 | }; | |
2315 | ||
2316 | struct cmsghdr *cmsg; | |
2317 | struct ucred *ucred = NULL; | |
62a76913 LP |
2318 | _cleanup_free_ Unit **array_copy = NULL; |
2319 | Unit *u1, *u2, **array; | |
b215b0ed | 2320 | int r, *fd_array = NULL; |
da6053d0 | 2321 | size_t n_fds = 0; |
62a76913 | 2322 | bool found = false; |
8c47c732 LP |
2323 | ssize_t n; |
2324 | ||
2325 | assert(m); | |
718db961 LP |
2326 | assert(m->notify_fd == fd); |
2327 | ||
2328 | if (revents != EPOLLIN) { | |
2329 | log_warning("Got unexpected poll event for notify fd."); | |
2330 | return 0; | |
2331 | } | |
8c47c732 | 2332 | |
045a3d59 | 2333 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC|MSG_TRUNC); |
b215b0ed | 2334 | if (n < 0) { |
c55ae51e LP |
2335 | if (IN_SET(errno, EAGAIN, EINTR)) |
2336 | return 0; /* Spurious wakeup, try again */ | |
8c47c732 | 2337 | |
c55ae51e LP |
2338 | /* If this is any other, real error, then let's stop processing this socket. This of course means we |
2339 | * won't take notification messages anymore, but that's still better than busy looping around this: | |
2340 | * being woken up over and over again but being unable to actually read the message off the socket. */ | |
2341 | return log_error_errno(errno, "Failed to receive notification message: %m"); | |
b215b0ed | 2342 | } |
a354329f | 2343 | |
b215b0ed DH |
2344 | CMSG_FOREACH(cmsg, &msghdr) { |
2345 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { | |
a354329f | 2346 | |
b215b0ed DH |
2347 | fd_array = (int*) CMSG_DATA(cmsg); |
2348 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
a354329f | 2349 | |
b215b0ed DH |
2350 | } else if (cmsg->cmsg_level == SOL_SOCKET && |
2351 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
2352 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
a354329f | 2353 | |
b215b0ed | 2354 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
a354329f | 2355 | } |
b215b0ed | 2356 | } |
a354329f | 2357 | |
b215b0ed DH |
2358 | if (n_fds > 0) { |
2359 | assert(fd_array); | |
a354329f | 2360 | |
b215b0ed DH |
2361 | r = fdset_new_array(&fds, fd_array, n_fds); |
2362 | if (r < 0) { | |
2363 | close_many(fd_array, n_fds); | |
9987750e FB |
2364 | log_oom(); |
2365 | return 0; | |
a354329f | 2366 | } |
b215b0ed | 2367 | } |
8c47c732 | 2368 | |
15e23e8c | 2369 | if (!ucred || !pid_is_valid(ucred->pid)) { |
b215b0ed DH |
2370 | log_warning("Received notify message without valid credentials. Ignoring."); |
2371 | return 0; | |
2372 | } | |
8c47c732 | 2373 | |
045a3d59 | 2374 | if ((size_t) n >= sizeof(buf) || (msghdr.msg_flags & MSG_TRUNC)) { |
b215b0ed DH |
2375 | log_warning("Received notify message exceeded maximum size. Ignoring."); |
2376 | return 0; | |
2377 | } | |
8c47c732 | 2378 | |
875ca88d LP |
2379 | /* As extra safety check, let's make sure the string we get doesn't contain embedded NUL bytes. We permit one |
2380 | * trailing NUL byte in the message, but don't expect it. */ | |
2381 | if (n > 1 && memchr(buf, 0, n-1)) { | |
2382 | log_warning("Received notify message with embedded NUL bytes. Ignoring."); | |
2383 | return 0; | |
2384 | } | |
2385 | ||
2386 | /* Make sure it's NUL-terminated. */ | |
b215b0ed | 2387 | buf[n] = 0; |
8c47c732 | 2388 | |
62a76913 LP |
2389 | /* Increase the generation counter used for filtering out duplicate unit invocations. */ |
2390 | m->notifygen++; | |
2391 | ||
2392 | /* Notify every unit that might be interested, which might be multiple. */ | |
b215b0ed | 2393 | u1 = manager_get_unit_by_pid_cgroup(m, ucred->pid); |
62a76913 LP |
2394 | u2 = hashmap_get(m->watch_pids, PID_TO_PTR(ucred->pid)); |
2395 | array = hashmap_get(m->watch_pids, PID_TO_PTR(-ucred->pid)); | |
2396 | if (array) { | |
2397 | size_t k = 0; | |
5ba6985b | 2398 | |
62a76913 LP |
2399 | while (array[k]) |
2400 | k++; | |
5ba6985b | 2401 | |
62a76913 LP |
2402 | array_copy = newdup(Unit*, array, k+1); |
2403 | if (!array_copy) | |
2404 | log_oom(); | |
2405 | } | |
2406 | /* And now invoke the per-unit callbacks. Note that manager_invoke_notify_message() will handle duplicate units | |
2407 | * make sure we only invoke each unit's handler once. */ | |
2408 | if (u1) { | |
2409 | manager_invoke_notify_message(m, u1, ucred, buf, fds); | |
2410 | found = true; | |
2411 | } | |
2412 | if (u2) { | |
2413 | manager_invoke_notify_message(m, u2, ucred, buf, fds); | |
2414 | found = true; | |
2415 | } | |
2416 | if (array_copy) | |
2417 | for (size_t i = 0; array_copy[i]; i++) { | |
2418 | manager_invoke_notify_message(m, array_copy[i], ucred, buf, fds); | |
2419 | found = true; | |
2420 | } | |
8c47c732 | 2421 | |
62a76913 LP |
2422 | if (!found) |
2423 | log_warning("Cannot find unit for notify message of PID "PID_FMT", ignoring.", ucred->pid); | |
a354329f | 2424 | |
b215b0ed | 2425 | if (fdset_size(fds) > 0) |
5fd2c135 | 2426 | log_warning("Got extra auxiliary fds with notification message, closing them."); |
8c47c732 LP |
2427 | |
2428 | return 0; | |
2429 | } | |
2430 | ||
62a76913 LP |
2431 | static void manager_invoke_sigchld_event( |
2432 | Manager *m, | |
2433 | Unit *u, | |
2434 | const siginfo_t *si) { | |
36f20ae3 | 2435 | |
5ba6985b LP |
2436 | assert(m); |
2437 | assert(u); | |
2438 | assert(si); | |
2439 | ||
62a76913 LP |
2440 | /* Already invoked the handler of this unit in this iteration? Then don't process this again */ |
2441 | if (u->sigchldgen == m->sigchldgen) | |
2442 | return; | |
2443 | u->sigchldgen = m->sigchldgen; | |
5ba6985b | 2444 | |
62a76913 | 2445 | log_unit_debug(u, "Child "PID_FMT" belongs to %s.", si->si_pid, u->id); |
5ba6985b | 2446 | unit_unwatch_pid(u, si->si_pid); |
e57051f5 | 2447 | |
62a76913 LP |
2448 | if (UNIT_VTABLE(u)->sigchld_event) |
2449 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
5ba6985b LP |
2450 | } |
2451 | ||
575b300b LP |
2452 | static int manager_dispatch_sigchld(sd_event_source *source, void *userdata) { |
2453 | Manager *m = userdata; | |
2454 | siginfo_t si = {}; | |
2455 | int r; | |
2456 | ||
2457 | assert(source); | |
9152c765 LP |
2458 | assert(m); |
2459 | ||
0a51b45c | 2460 | /* First we call waitid() for a PID and do not reap the zombie. That way we can still access /proc/$PID for it |
575b300b | 2461 | * while it is a zombie. */ |
9152c765 | 2462 | |
575b300b | 2463 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { |
acbb0225 | 2464 | |
8afabc50 AJ |
2465 | if (errno != ECHILD) |
2466 | log_error_errno(errno, "Failed to peek for child with waitid(), ignoring: %m"); | |
acbb0225 | 2467 | |
8afabc50 | 2468 | goto turn_off; |
575b300b | 2469 | } |
4112df16 | 2470 | |
575b300b LP |
2471 | if (si.si_pid <= 0) |
2472 | goto turn_off; | |
2473 | ||
2474 | if (IN_SET(si.si_code, CLD_EXITED, CLD_KILLED, CLD_DUMPED)) { | |
62a76913 | 2475 | _cleanup_free_ Unit **array_copy = NULL; |
575b300b | 2476 | _cleanup_free_ char *name = NULL; |
62a76913 | 2477 | Unit *u1, *u2, **array; |
575b300b LP |
2478 | |
2479 | (void) get_process_comm(si.si_pid, &name); | |
2480 | ||
2481 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", | |
2482 | si.si_pid, strna(name), | |
2483 | sigchld_code_to_string(si.si_code), | |
2484 | si.si_status, | |
2485 | strna(si.si_code == CLD_EXITED | |
2486 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
2487 | : signal_to_string(si.si_status))); | |
2488 | ||
62a76913 LP |
2489 | /* Increase the generation counter used for filtering out duplicate unit invocations */ |
2490 | m->sigchldgen++; | |
2491 | ||
2492 | /* And now figure out the unit this belongs to, it might be multiple... */ | |
575b300b | 2493 | u1 = manager_get_unit_by_pid_cgroup(m, si.si_pid); |
62a76913 LP |
2494 | u2 = hashmap_get(m->watch_pids, PID_TO_PTR(si.si_pid)); |
2495 | array = hashmap_get(m->watch_pids, PID_TO_PTR(-si.si_pid)); | |
2496 | if (array) { | |
2497 | size_t n = 0; | |
2498 | ||
5238e957 | 2499 | /* Count how many entries the array has */ |
62a76913 LP |
2500 | while (array[n]) |
2501 | n++; | |
2502 | ||
2503 | /* Make a copy of the array so that we don't trip up on the array changing beneath us */ | |
2504 | array_copy = newdup(Unit*, array, n+1); | |
2505 | if (!array_copy) | |
2506 | log_oom(); | |
2507 | } | |
2508 | ||
2509 | /* Finally, execute them all. Note that u1, u2 and the array might contain duplicates, but | |
2510 | * that's fine, manager_invoke_sigchld_event() will ensure we only invoke the handlers once for | |
2511 | * each iteration. */ | |
2ba6ae6b ZJS |
2512 | if (u1) { |
2513 | /* We check for oom condition, in case we got SIGCHLD before the oom notification. | |
2514 | * We only do this for the cgroup the PID belonged to. */ | |
2515 | (void) unit_check_oom(u1); | |
2516 | ||
62a76913 | 2517 | manager_invoke_sigchld_event(m, u1, &si); |
2ba6ae6b | 2518 | } |
62a76913 LP |
2519 | if (u2) |
2520 | manager_invoke_sigchld_event(m, u2, &si); | |
2521 | if (array_copy) | |
2522 | for (size_t i = 0; array_copy[i]; i++) | |
2523 | manager_invoke_sigchld_event(m, array_copy[i], &si); | |
575b300b | 2524 | } |
9152c765 | 2525 | |
575b300b LP |
2526 | /* And now, we actually reap the zombie. */ |
2527 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
2528 | log_error_errno(errno, "Failed to dequeue child, ignoring: %m"); | |
2529 | return 0; | |
2530 | } | |
9152c765 | 2531 | |
575b300b | 2532 | return 0; |
8c47c732 | 2533 | |
575b300b LP |
2534 | turn_off: |
2535 | /* All children processed for now, turn off event source */ | |
4112df16 | 2536 | |
575b300b LP |
2537 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_OFF); |
2538 | if (r < 0) | |
2539 | return log_error_errno(r, "Failed to disable SIGCHLD event source: %m"); | |
9152c765 LP |
2540 | |
2541 | return 0; | |
2542 | } | |
2543 | ||
c75fbada | 2544 | static void manager_start_target(Manager *m, const char *name, JobMode mode) { |
4afd3348 | 2545 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 2546 | int r; |
398ef8ba | 2547 | |
f2341e0a | 2548 | log_debug("Activating special unit %s", name); |
1e001f52 | 2549 | |
50cbaba4 | 2550 | r = manager_add_job_by_name(m, JOB_START, name, mode, NULL, &error, NULL); |
bd0af849 | 2551 | if (r < 0) |
f2341e0a | 2552 | log_error("Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
28247076 LP |
2553 | } |
2554 | ||
24dd31c1 LN |
2555 | static void manager_handle_ctrl_alt_del(Manager *m) { |
2556 | /* If the user presses C-A-D more than | |
2557 | * 7 times within 2s, we reboot/shutdown immediately, | |
2558 | * unless it was disabled in system.conf */ | |
2559 | ||
7994ac1d | 2560 | if (ratelimit_below(&m->ctrl_alt_del_ratelimit) || m->cad_burst_action == EMERGENCY_ACTION_NONE) |
24dd31c1 | 2561 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
ae8c7939 | 2562 | else |
7af67e9a | 2563 | emergency_action(m, m->cad_burst_action, EMERGENCY_ACTION_WARN, NULL, -1, |
ae8c7939 | 2564 | "Ctrl-Alt-Del was pressed more than 7 times within 2s"); |
24dd31c1 LN |
2565 | } |
2566 | ||
718db961 LP |
2567 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2568 | Manager *m = userdata; | |
9152c765 LP |
2569 | ssize_t n; |
2570 | struct signalfd_siginfo sfsi; | |
dacd6cee | 2571 | int r; |
9152c765 LP |
2572 | |
2573 | assert(m); | |
718db961 LP |
2574 | assert(m->signal_fd == fd); |
2575 | ||
2576 | if (revents != EPOLLIN) { | |
2577 | log_warning("Got unexpected events from signal file descriptor."); | |
2578 | return 0; | |
2579 | } | |
9152c765 | 2580 | |
575b300b LP |
2581 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
2582 | if (n != sizeof(sfsi)) { | |
2583 | if (n >= 0) { | |
2584 | log_warning("Truncated read from signal fd (%zu bytes), ignoring!", n); | |
2585 | return 0; | |
2586 | } | |
9152c765 | 2587 | |
575b300b LP |
2588 | if (IN_SET(errno, EINTR, EAGAIN)) |
2589 | return 0; | |
9152c765 | 2590 | |
575b300b LP |
2591 | /* We return an error here, which will kill this handler, |
2592 | * to avoid a busy loop on read error. */ | |
2593 | return log_error_errno(errno, "Reading from signal fd failed: %m"); | |
2594 | } | |
9152c765 | 2595 | |
575b300b LP |
2596 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
2597 | (sfsi.ssi_signo == SIGTERM && MANAGER_IS_USER(m)) | |
2598 | ? LOG_DEBUG : LOG_INFO, | |
2599 | &sfsi); | |
1e001f52 | 2600 | |
575b300b | 2601 | switch (sfsi.ssi_signo) { |
b9cd2ec1 | 2602 | |
575b300b LP |
2603 | case SIGCHLD: |
2604 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_ON); | |
2605 | if (r < 0) | |
8afabc50 | 2606 | log_warning_errno(r, "Failed to enable SIGCHLD event source, ignoring: %m"); |
b9cd2ec1 | 2607 | |
575b300b | 2608 | break; |
84e9af1e | 2609 | |
575b300b LP |
2610 | case SIGTERM: |
2611 | if (MANAGER_IS_SYSTEM(m)) { | |
ba0c7754 | 2612 | /* This is for compatibility with the original sysvinit */ |
c52b19d6 LP |
2613 | if (verify_run_space_and_log("Refusing to reexecute") < 0) |
2614 | break; | |
2615 | ||
2616 | m->objective = MANAGER_REEXECUTE; | |
a1b256b0 | 2617 | break; |
575b300b | 2618 | } |
84e9af1e | 2619 | |
575b300b LP |
2620 | _fallthrough_; |
2621 | case SIGINT: | |
2622 | if (MANAGER_IS_SYSTEM(m)) | |
2623 | manager_handle_ctrl_alt_del(m); | |
2624 | else | |
2625 | manager_start_target(m, SPECIAL_EXIT_TARGET, | |
2626 | JOB_REPLACE_IRREVERSIBLY); | |
2627 | break; | |
84e9af1e | 2628 | |
575b300b | 2629 | case SIGWINCH: |
ba0c7754 | 2630 | /* This is a nop on non-init */ |
575b300b LP |
2631 | if (MANAGER_IS_SYSTEM(m)) |
2632 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); | |
84e9af1e | 2633 | |
575b300b | 2634 | break; |
84e9af1e | 2635 | |
575b300b | 2636 | case SIGPWR: |
ba0c7754 | 2637 | /* This is a nop on non-init */ |
575b300b LP |
2638 | if (MANAGER_IS_SYSTEM(m)) |
2639 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); | |
6632c602 | 2640 | |
575b300b | 2641 | break; |
57ee42ce | 2642 | |
8559b3b7 | 2643 | case SIGUSR1: |
8559b3b7 | 2644 | if (manager_dbus_is_running(m, false)) { |
575b300b | 2645 | log_info("Trying to reconnect to bus..."); |
575b300b | 2646 | |
8559b3b7 LP |
2647 | (void) bus_init_api(m); |
2648 | ||
2649 | if (MANAGER_IS_SYSTEM(m)) | |
2650 | (void) bus_init_system(m); | |
2651 | } else { | |
2652 | log_info("Starting D-Bus service..."); | |
575b300b LP |
2653 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
2654 | } | |
57ee42ce | 2655 | |
575b300b | 2656 | break; |
575b300b LP |
2657 | |
2658 | case SIGUSR2: { | |
2659 | _cleanup_free_ char *dump = NULL; | |
2660 | ||
2661 | r = manager_get_dump_string(m, &dump); | |
2662 | if (r < 0) { | |
2663 | log_warning_errno(errno, "Failed to acquire manager dump: %m"); | |
57ee42ce LP |
2664 | break; |
2665 | } | |
2666 | ||
575b300b LP |
2667 | log_dump(LOG_INFO, dump); |
2668 | break; | |
2669 | } | |
2149e37c | 2670 | |
575b300b | 2671 | case SIGHUP: |
c52b19d6 LP |
2672 | if (verify_run_space_and_log("Refusing to reload") < 0) |
2673 | break; | |
2674 | ||
2675 | m->objective = MANAGER_RELOAD; | |
575b300b LP |
2676 | break; |
2677 | ||
2678 | default: { | |
2679 | ||
2680 | /* Starting SIGRTMIN+0 */ | |
2681 | static const struct { | |
2682 | const char *target; | |
2683 | JobMode mode; | |
2684 | } target_table[] = { | |
2685 | [0] = { SPECIAL_DEFAULT_TARGET, JOB_ISOLATE }, | |
2686 | [1] = { SPECIAL_RESCUE_TARGET, JOB_ISOLATE }, | |
2687 | [2] = { SPECIAL_EMERGENCY_TARGET, JOB_ISOLATE }, | |
2688 | [3] = { SPECIAL_HALT_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2689 | [4] = { SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2690 | [5] = { SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2691 | [6] = { SPECIAL_KEXEC_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2692 | }; | |
2693 | ||
2694 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
af41e508 | 2695 | static const ManagerObjective objective_table[] = { |
575b300b LP |
2696 | [0] = MANAGER_HALT, |
2697 | [1] = MANAGER_POWEROFF, | |
2698 | [2] = MANAGER_REBOOT, | |
2699 | [3] = MANAGER_KEXEC, | |
2700 | }; | |
b2cdc666 | 2701 | |
575b300b LP |
2702 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && |
2703 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { | |
2704 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; | |
2705 | manager_start_target(m, target_table[idx].target, | |
2706 | target_table[idx].mode); | |
1005d14f | 2707 | break; |
2149e37c | 2708 | } |
1005d14f | 2709 | |
575b300b | 2710 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
af41e508 LP |
2711 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(objective_table)) { |
2712 | m->objective = objective_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
575b300b LP |
2713 | break; |
2714 | } | |
2715 | ||
2716 | switch (sfsi.ssi_signo - SIGRTMIN) { | |
2717 | ||
2718 | case 20: | |
2719 | manager_set_show_status(m, SHOW_STATUS_YES); | |
a16e1123 LP |
2720 | break; |
2721 | ||
575b300b LP |
2722 | case 21: |
2723 | manager_set_show_status(m, SHOW_STATUS_NO); | |
2724 | break; | |
7d793605 | 2725 | |
575b300b | 2726 | case 22: |
a6ecbf83 | 2727 | manager_override_log_level(m, LOG_DEBUG); |
575b300b LP |
2728 | break; |
2729 | ||
2730 | case 23: | |
a6ecbf83 | 2731 | manager_restore_original_log_level(m); |
575b300b | 2732 | break; |
0003d1ab | 2733 | |
575b300b LP |
2734 | case 24: |
2735 | if (MANAGER_IS_USER(m)) { | |
af41e508 | 2736 | m->objective = MANAGER_EXIT; |
575b300b | 2737 | return 0; |
0658666b | 2738 | } |
9152c765 | 2739 | |
575b300b LP |
2740 | /* This is a nop on init */ |
2741 | break; | |
2742 | ||
2743 | case 26: | |
2744 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ | |
bda7d78b | 2745 | manager_restore_original_log_target(m); |
575b300b LP |
2746 | break; |
2747 | ||
2748 | case 27: | |
bda7d78b | 2749 | manager_override_log_target(m, LOG_TARGET_CONSOLE); |
575b300b LP |
2750 | break; |
2751 | ||
2752 | case 28: | |
bda7d78b | 2753 | manager_override_log_target(m, LOG_TARGET_KMSG); |
575b300b LP |
2754 | break; |
2755 | ||
2756 | default: | |
2757 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); | |
2758 | } | |
2759 | }} | |
034c6ed7 LP |
2760 | |
2761 | return 0; | |
2762 | } | |
2763 | ||
718db961 LP |
2764 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2765 | Manager *m = userdata; | |
2766 | Iterator i; | |
2767 | Unit *u; | |
034c6ed7 LP |
2768 | |
2769 | assert(m); | |
718db961 | 2770 | assert(m->time_change_fd == fd); |
034c6ed7 | 2771 | |
a80c1575 | 2772 | log_struct(LOG_DEBUG, |
2b044526 | 2773 | "MESSAGE_ID=" SD_MESSAGE_TIME_CHANGE_STR, |
a1230ff9 | 2774 | LOG_MESSAGE("Time has been changed")); |
034c6ed7 | 2775 | |
718db961 | 2776 | /* Restart the watch */ |
7feedd18 | 2777 | (void) manager_setup_time_change(m); |
4e434314 | 2778 | |
718db961 LP |
2779 | HASHMAP_FOREACH(u, m->units, i) |
2780 | if (UNIT_VTABLE(u)->time_change) | |
2781 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 2782 | |
718db961 LP |
2783 | return 0; |
2784 | } | |
ea430986 | 2785 | |
bbf5fd8e LP |
2786 | static int manager_dispatch_timezone_change( |
2787 | sd_event_source *source, | |
2788 | const struct inotify_event *e, | |
2789 | void *userdata) { | |
2790 | ||
2791 | Manager *m = userdata; | |
2792 | int changed; | |
2793 | Iterator i; | |
2794 | Unit *u; | |
2795 | ||
2796 | assert(m); | |
2797 | ||
2798 | log_debug("inotify event for /etc/localtime"); | |
2799 | ||
2800 | changed = manager_read_timezone_stat(m); | |
f20db199 | 2801 | if (changed <= 0) |
bbf5fd8e | 2802 | return changed; |
bbf5fd8e LP |
2803 | |
2804 | /* Something changed, restart the watch, to ensure we watch the new /etc/localtime if it changed */ | |
2805 | (void) manager_setup_timezone_change(m); | |
2806 | ||
2807 | /* Read the new timezone */ | |
2808 | tzset(); | |
2809 | ||
2810 | log_debug("Timezone has been changed (now: %s).", tzname[daylight]); | |
2811 | ||
2812 | HASHMAP_FOREACH(u, m->units, i) | |
2813 | if (UNIT_VTABLE(u)->timezone_change) | |
2814 | UNIT_VTABLE(u)->timezone_change(u); | |
2815 | ||
2816 | return 0; | |
2817 | } | |
2818 | ||
718db961 LP |
2819 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2820 | Manager *m = userdata; | |
8742514c | 2821 | |
718db961 LP |
2822 | assert(m); |
2823 | assert(m->idle_pipe[2] == fd); | |
8742514c | 2824 | |
5a69973f LP |
2825 | /* There's at least one Type=idle child that just gave up on us waiting for the boot process to complete. Let's |
2826 | * now turn off any further console output if there's at least one service that needs console access, so that | |
2827 | * from now on our own output should not spill into that service's output anymore. After all, we support | |
2828 | * Type=idle only to beautify console output and it generally is set on services that want to own the console | |
2829 | * exclusively without our interference. */ | |
718db961 | 2830 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 2831 | |
5a69973f LP |
2832 | /* Acknowledge the child's request, and let all all other children know too that they shouldn't wait any longer |
2833 | * by closing the pipes towards them, which is what they are waiting for. */ | |
718db961 | 2834 | manager_close_idle_pipe(m); |
03b717a3 | 2835 | |
718db961 LP |
2836 | return 0; |
2837 | } | |
31a7eb86 | 2838 | |
718db961 LP |
2839 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
2840 | Manager *m = userdata; | |
fd08a840 ZJS |
2841 | int r; |
2842 | uint64_t next; | |
31a7eb86 | 2843 | |
718db961 | 2844 | assert(m); |
fd08a840 | 2845 | assert(source); |
9152c765 | 2846 | |
718db961 | 2847 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
2848 | |
2849 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
2850 | r = sd_event_source_set_time(source, next); | |
2851 | if (r < 0) | |
2852 | return r; | |
2853 | ||
2854 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
2855 | } |
2856 | ||
2857 | int manager_loop(Manager *m) { | |
2858 | int r; | |
9152c765 | 2859 | |
fac9f8df | 2860 | RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); |
ea430986 | 2861 | |
9152c765 | 2862 | assert(m); |
1fb70e66 | 2863 | assert(m->objective == MANAGER_OK); /* Ensure manager_startup() has been called */ |
9152c765 | 2864 | |
b0c918b9 LP |
2865 | manager_check_finished(m); |
2866 | ||
575b300b LP |
2867 | /* There might still be some zombies hanging around from before we were exec()'ed. Let's reap them. */ |
2868 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_ON); | |
e96d6be7 | 2869 | if (r < 0) |
575b300b | 2870 | return log_error_errno(r, "Failed to enable SIGCHLD event source: %m"); |
a4312405 | 2871 | |
af41e508 | 2872 | while (m->objective == MANAGER_OK) { |
718db961 | 2873 | usec_t wait_usec; |
9152c765 | 2874 | |
1f65fd49 | 2875 | if (timestamp_is_set(m->runtime_watchdog) && MANAGER_IS_SYSTEM(m)) |
e96d6be7 LP |
2876 | watchdog_ping(); |
2877 | ||
7994ac1d | 2878 | if (!ratelimit_below(&rl)) { |
ea430986 LP |
2879 | /* Yay, something is going seriously wrong, pause a little */ |
2880 | log_warning("Looping too fast. Throttling execution a little."); | |
2881 | sleep(1); | |
2882 | } | |
2883 | ||
37a8e683 | 2884 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
2885 | continue; |
2886 | ||
c5a97ed1 LP |
2887 | if (manager_dispatch_gc_job_queue(m) > 0) |
2888 | continue; | |
2889 | ||
2890 | if (manager_dispatch_gc_unit_queue(m) > 0) | |
701cc384 LP |
2891 | continue; |
2892 | ||
cf1265e1 | 2893 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 2894 | continue; |
034c6ed7 | 2895 | |
91a6073e | 2896 | if (manager_dispatch_cgroup_realize_queue(m) > 0) |
c1e1601e LP |
2897 | continue; |
2898 | ||
a3c1168a LP |
2899 | if (manager_dispatch_stop_when_unneeded_queue(m) > 0) |
2900 | continue; | |
2901 | ||
c1e1601e | 2902 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 2903 | continue; |
ea430986 | 2904 | |
c757a65b | 2905 | /* Sleep for half the watchdog time */ |
1f65fd49 | 2906 | if (timestamp_is_set(m->runtime_watchdog) && MANAGER_IS_SYSTEM(m)) { |
718db961 LP |
2907 | wait_usec = m->runtime_watchdog / 2; |
2908 | if (wait_usec <= 0) | |
2909 | wait_usec = 1; | |
c757a65b | 2910 | } else |
3a43da28 | 2911 | wait_usec = USEC_INFINITY; |
9152c765 | 2912 | |
718db961 | 2913 | r = sd_event_run(m->event, wait_usec); |
23bbb0de MS |
2914 | if (r < 0) |
2915 | return log_error_errno(r, "Failed to run event loop: %m"); | |
a16e1123 | 2916 | } |
957ca890 | 2917 | |
af41e508 | 2918 | return m->objective; |
83c60c9f | 2919 | } |
ea430986 | 2920 | |
718db961 | 2921 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 2922 | _cleanup_free_ char *n = NULL; |
4b58153d | 2923 | sd_id128_t invocation_id; |
ea430986 | 2924 | Unit *u; |
80fbf05e | 2925 | int r; |
ea430986 LP |
2926 | |
2927 | assert(m); | |
2928 | assert(s); | |
2929 | assert(_u); | |
2930 | ||
ede3a796 LP |
2931 | r = unit_name_from_dbus_path(s, &n); |
2932 | if (r < 0) | |
2933 | return r; | |
ea430986 | 2934 | |
4b58153d LP |
2935 | /* Permit addressing units by invocation ID: if the passed bus path is suffixed by a 128bit ID then we use it |
2936 | * as invocation ID. */ | |
2937 | r = sd_id128_from_string(n, &invocation_id); | |
2938 | if (r >= 0) { | |
2939 | u = hashmap_get(m->units_by_invocation_id, &invocation_id); | |
2940 | if (u) { | |
2941 | *_u = u; | |
2942 | return 0; | |
2943 | } | |
2944 | ||
930c124c ZJS |
2945 | return sd_bus_error_setf(e, BUS_ERROR_NO_UNIT_FOR_INVOCATION_ID, |
2946 | "No unit with the specified invocation ID " SD_ID128_FORMAT_STR " known.", | |
2947 | SD_ID128_FORMAT_VAL(invocation_id)); | |
4b58153d LP |
2948 | } |
2949 | ||
00c83b43 | 2950 | /* If this didn't work, we check if this is a unit name */ |
930c124c ZJS |
2951 | if (!unit_name_is_valid(n, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) { |
2952 | _cleanup_free_ char *nn = NULL; | |
2953 | ||
2954 | nn = cescape(n); | |
2955 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, | |
2956 | "Unit name %s is neither a valid invocation ID nor unit name.", strnull(nn)); | |
2957 | } | |
00c83b43 | 2958 | |
80fbf05e | 2959 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
2960 | if (r < 0) |
2961 | return r; | |
ea430986 LP |
2962 | |
2963 | *_u = u; | |
ea430986 LP |
2964 | return 0; |
2965 | } | |
86fbf370 LP |
2966 | |
2967 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 2968 | const char *p; |
86fbf370 | 2969 | unsigned id; |
718db961 | 2970 | Job *j; |
86fbf370 LP |
2971 | int r; |
2972 | ||
2973 | assert(m); | |
2974 | assert(s); | |
2975 | assert(_j); | |
2976 | ||
718db961 LP |
2977 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
2978 | if (!p) | |
86fbf370 LP |
2979 | return -EINVAL; |
2980 | ||
718db961 | 2981 | r = safe_atou(p, &id); |
8742514c | 2982 | if (r < 0) |
86fbf370 LP |
2983 | return r; |
2984 | ||
8742514c LP |
2985 | j = manager_get_job(m, id); |
2986 | if (!j) | |
86fbf370 LP |
2987 | return -ENOENT; |
2988 | ||
2989 | *_j = j; | |
2990 | ||
2991 | return 0; | |
2992 | } | |
dfcd764e | 2993 | |
4927fcae | 2994 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 2995 | |
349cc4a5 | 2996 | #if HAVE_AUDIT |
2ba11090 | 2997 | _cleanup_free_ char *p = NULL; |
0aa281df | 2998 | const char *msg; |
7410616c | 2999 | int audit_fd, r; |
e537352b | 3000 | |
463d0d15 | 3001 | if (!MANAGER_IS_SYSTEM(m)) |
a1a078ee LP |
3002 | return; |
3003 | ||
c1165f82 LP |
3004 | audit_fd = get_audit_fd(); |
3005 | if (audit_fd < 0) | |
e537352b LP |
3006 | return; |
3007 | ||
bbd3a7ba LP |
3008 | /* Don't generate audit events if the service was already |
3009 | * started and we're just deserializing */ | |
2c289ea8 | 3010 | if (MANAGER_IS_RELOADING(m)) |
bbd3a7ba LP |
3011 | return; |
3012 | ||
ac155bb8 | 3013 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
3014 | return; |
3015 | ||
7410616c LP |
3016 | r = unit_name_to_prefix_and_instance(u->id, &p); |
3017 | if (r < 0) { | |
3018 | log_error_errno(r, "Failed to extract prefix and instance of unit name: %m"); | |
e537352b LP |
3019 | return; |
3020 | } | |
3021 | ||
63c372cb | 3022 | msg = strjoina("unit=", p); |
0aa281df LP |
3023 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { |
3024 | if (errno == EPERM) | |
391ade86 | 3025 | /* We aren't allowed to send audit messages? |
44785992 | 3026 | * Then let's not retry again. */ |
c1165f82 | 3027 | close_audit_fd(); |
0aa281df | 3028 | else |
56f64d95 | 3029 | log_warning_errno(errno, "Failed to send audit message: %m"); |
391ade86 | 3030 | } |
4927fcae | 3031 | #endif |
e537352b | 3032 | |
e537352b LP |
3033 | } |
3034 | ||
e983b760 | 3035 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
fc2fffe7 | 3036 | static const union sockaddr_union sa = PLYMOUTH_SOCKET; |
2ba11090 ZJS |
3037 | _cleanup_free_ char *message = NULL; |
3038 | _cleanup_close_ int fd = -1; | |
fc2fffe7 | 3039 | int n = 0; |
e983b760 LP |
3040 | |
3041 | /* Don't generate plymouth events if the service was already | |
3042 | * started and we're just deserializing */ | |
2c289ea8 | 3043 | if (MANAGER_IS_RELOADING(m)) |
e983b760 LP |
3044 | return; |
3045 | ||
463d0d15 | 3046 | if (!MANAGER_IS_SYSTEM(m)) |
e983b760 LP |
3047 | return; |
3048 | ||
75f86906 | 3049 | if (detect_container() > 0) |
3772995a LP |
3050 | return; |
3051 | ||
ec2ce0c5 | 3052 | if (!IN_SET(u->type, UNIT_SERVICE, UNIT_MOUNT, UNIT_SWAP)) |
e983b760 LP |
3053 | return; |
3054 | ||
3055 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
3056 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
3057 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
3058 | if (fd < 0) { | |
56f64d95 | 3059 | log_error_errno(errno, "socket() failed: %m"); |
e983b760 LP |
3060 | return; |
3061 | } | |
3062 | ||
fc2fffe7 | 3063 | if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) { |
f60a028a | 3064 | if (!IN_SET(errno, EAGAIN, ENOENT) && !ERRNO_IS_DISCONNECT(errno)) |
56f64d95 | 3065 | log_error_errno(errno, "connect() failed: %m"); |
2ba11090 | 3066 | return; |
e983b760 LP |
3067 | } |
3068 | ||
ac155bb8 | 3069 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 3070 | log_oom(); |
2ba11090 | 3071 | return; |
e983b760 LP |
3072 | } |
3073 | ||
3074 | errno = 0; | |
2ba11090 | 3075 | if (write(fd, message, n + 1) != n + 1) |
f60a028a | 3076 | if (!IN_SET(errno, EAGAIN, ENOENT) && !ERRNO_IS_DISCONNECT(errno)) |
56f64d95 | 3077 | log_error_errno(errno, "Failed to write Plymouth message: %m"); |
e983b760 LP |
3078 | } |
3079 | ||
d8d5ab98 | 3080 | int manager_open_serialization(Manager *m, FILE **_f) { |
504afd7c | 3081 | int fd; |
a16e1123 LP |
3082 | FILE *f; |
3083 | ||
3084 | assert(_f); | |
3085 | ||
504afd7c ZJS |
3086 | fd = open_serialization_fd("systemd-state"); |
3087 | if (fd < 0) | |
3088 | return fd; | |
a16e1123 | 3089 | |
01e10de3 | 3090 | f = fdopen(fd, "w+"); |
d86f9d52 | 3091 | if (!f) { |
03e334a1 | 3092 | safe_close(fd); |
a16e1123 | 3093 | return -errno; |
d86f9d52 | 3094 | } |
a16e1123 LP |
3095 | |
3096 | *_f = f; | |
a16e1123 LP |
3097 | return 0; |
3098 | } | |
3099 | ||
cdd620e3 LP |
3100 | static bool manager_timestamp_shall_serialize(ManagerTimestamp t) { |
3101 | ||
3102 | if (!in_initrd()) | |
3103 | return true; | |
3104 | ||
3105 | /* The following timestamps only apply to the host system, hence only serialize them there */ | |
3106 | return !IN_SET(t, | |
3107 | MANAGER_TIMESTAMP_USERSPACE, MANAGER_TIMESTAMP_FINISH, | |
3108 | MANAGER_TIMESTAMP_SECURITY_START, MANAGER_TIMESTAMP_SECURITY_FINISH, | |
3109 | MANAGER_TIMESTAMP_GENERATORS_START, MANAGER_TIMESTAMP_GENERATORS_FINISH, | |
3110 | MANAGER_TIMESTAMP_UNITS_LOAD_START, MANAGER_TIMESTAMP_UNITS_LOAD_FINISH); | |
3111 | } | |
3112 | ||
4daf832a LP |
3113 | int manager_serialize( |
3114 | Manager *m, | |
3115 | FILE *f, | |
3116 | FDSet *fds, | |
3117 | bool switching_root) { | |
3118 | ||
9f9f0342 LP |
3119 | ManagerTimestamp q; |
3120 | const char *t; | |
a16e1123 LP |
3121 | Iterator i; |
3122 | Unit *u; | |
a16e1123 LP |
3123 | int r; |
3124 | ||
3125 | assert(m); | |
3126 | assert(f); | |
3127 | assert(fds); | |
3128 | ||
cb16b085 | 3129 | _cleanup_(manager_reloading_stopp) _unused_ Manager *reloading = manager_reloading_start(m); |
38c52d46 | 3130 | |
d68c645b LP |
3131 | (void) serialize_item_format(f, "current-job-id", "%" PRIu32, m->current_job_id); |
3132 | (void) serialize_item_format(f, "n-installed-jobs", "%u", m->n_installed_jobs); | |
3133 | (void) serialize_item_format(f, "n-failed-jobs", "%u", m->n_failed_jobs); | |
3134 | (void) serialize_bool(f, "taint-usr", m->taint_usr); | |
3135 | (void) serialize_bool(f, "ready-sent", m->ready_sent); | |
3136 | (void) serialize_bool(f, "taint-logged", m->taint_logged); | |
3137 | (void) serialize_bool(f, "service-watchdogs", m->service_watchdogs); | |
01d67b43 | 3138 | |
c6e892bc YW |
3139 | /* After switching root, udevd has not been started yet. So, enumeration results should not be emitted. */ |
3140 | (void) serialize_bool(f, "honor-device-enumeration", !switching_root); | |
3141 | ||
bee38b5c YW |
3142 | t = show_status_to_string(m->show_status); |
3143 | if (t) | |
d68c645b | 3144 | (void) serialize_item(f, "show-status", t); |
bee38b5c | 3145 | |
a6ecbf83 | 3146 | if (m->log_level_overridden) |
d68c645b | 3147 | (void) serialize_item_format(f, "log-level-override", "%i", log_get_max_level()); |
bda7d78b | 3148 | if (m->log_target_overridden) |
d68c645b | 3149 | (void) serialize_item(f, "log-target-override", log_target_to_string(log_get_target())); |
a6ecbf83 | 3150 | |
9f9f0342 | 3151 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { |
c475e57d LP |
3152 | _cleanup_free_ char *joined = NULL; |
3153 | ||
cdd620e3 | 3154 | if (!manager_timestamp_shall_serialize(q)) |
9f9f0342 | 3155 | continue; |
f38ed060 | 3156 | |
c475e57d LP |
3157 | joined = strjoin(manager_timestamp_to_string(q), "-timestamp"); |
3158 | if (!joined) | |
3159 | return log_oom(); | |
3160 | ||
d68c645b | 3161 | (void) serialize_dual_timestamp(f, joined, m->timestamps + q); |
f38ed060 | 3162 | } |
47a483a1 | 3163 | |
fe902fa4 | 3164 | if (!switching_root) |
1ad6e8b3 | 3165 | (void) serialize_strv(f, "env", m->client_environment); |
4a9fd066 | 3166 | |
d86f9d52 | 3167 | if (m->notify_fd >= 0) { |
d68c645b LP |
3168 | r = serialize_fd(f, fds, "notify-fd", m->notify_fd); |
3169 | if (r < 0) | |
3170 | return r; | |
d86f9d52 | 3171 | |
d68c645b | 3172 | (void) serialize_item(f, "notify-socket", m->notify_socket); |
d86f9d52 LP |
3173 | } |
3174 | ||
d8fdc620 | 3175 | if (m->cgroups_agent_fd >= 0) { |
d68c645b LP |
3176 | r = serialize_fd(f, fds, "cgroups-agent-fd", m->cgroups_agent_fd); |
3177 | if (r < 0) | |
3178 | return r; | |
d8fdc620 LP |
3179 | } |
3180 | ||
00d9ef85 LP |
3181 | if (m->user_lookup_fds[0] >= 0) { |
3182 | int copy0, copy1; | |
3183 | ||
3184 | copy0 = fdset_put_dup(fds, m->user_lookup_fds[0]); | |
d147e2b6 | 3185 | if (copy0 < 0) |
d68c645b | 3186 | return log_error_errno(copy0, "Failed to add user lookup fd to serialization: %m"); |
00d9ef85 LP |
3187 | |
3188 | copy1 = fdset_put_dup(fds, m->user_lookup_fds[1]); | |
d147e2b6 | 3189 | if (copy1 < 0) |
d68c645b | 3190 | return log_error_errno(copy1, "Failed to add user lookup fd to serialization: %m"); |
00d9ef85 | 3191 | |
d68c645b | 3192 | (void) serialize_item_format(f, "user-lookup", "%i %i", copy0, copy1); |
00d9ef85 LP |
3193 | } |
3194 | ||
05a98afd | 3195 | bus_track_serialize(m->subscribed, f, "subscribed"); |
6fa48533 | 3196 | |
29206d46 LP |
3197 | r = dynamic_user_serialize(m, f, fds); |
3198 | if (r < 0) | |
d147e2b6 | 3199 | return r; |
29206d46 | 3200 | |
00d9ef85 LP |
3201 | manager_serialize_uid_refs(m, f); |
3202 | manager_serialize_gid_refs(m, f); | |
3203 | ||
e8a565cb YW |
3204 | r = exec_runtime_serialize(m, f, fds); |
3205 | if (r < 0) | |
d147e2b6 | 3206 | return r; |
e8a565cb | 3207 | |
0d536673 | 3208 | (void) fputc('\n', f); |
f2382a94 | 3209 | |
a16e1123 | 3210 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 3211 | if (u->id != t) |
a16e1123 LP |
3212 | continue; |
3213 | ||
a16e1123 | 3214 | /* Start marker */ |
0d536673 LP |
3215 | fputs(u->id, f); |
3216 | fputc('\n', f); | |
a16e1123 | 3217 | |
6fa48533 | 3218 | r = unit_serialize(u, f, fds, !switching_root); |
4daf832a | 3219 | if (r < 0) |
d147e2b6 | 3220 | return r; |
a16e1123 LP |
3221 | } |
3222 | ||
01d32c00 LP |
3223 | r = fflush_and_check(f); |
3224 | if (r < 0) | |
d68c645b | 3225 | return log_error_errno(r, "Failed to flush serialization: %m"); |
a16e1123 | 3226 | |
b23de6af LP |
3227 | r = bus_fdset_add_all(m, fds); |
3228 | if (r < 0) | |
d68c645b | 3229 | return log_error_errno(r, "Failed to add bus sockets to serialization: %m"); |
4daf832a | 3230 | |
d147e2b6 | 3231 | return 0; |
a16e1123 LP |
3232 | } |
3233 | ||
651b3b6c FB |
3234 | static int manager_deserialize_one_unit(Manager *m, const char *name, FILE *f, FDSet *fds) { |
3235 | Unit *u; | |
3236 | int r; | |
3237 | ||
3238 | r = manager_load_unit(m, name, NULL, NULL, &u); | |
3239 | if (r < 0) { | |
3240 | if (r == -ENOMEM) | |
3241 | return r; | |
3242 | return log_notice_errno(r, "Failed to load unit \"%s\", skipping deserialization: %m", name); | |
3243 | } | |
3244 | ||
3245 | r = unit_deserialize(u, f, fds); | |
3246 | if (r < 0) { | |
3247 | if (r == -ENOMEM) | |
3248 | return r; | |
3249 | return log_notice_errno(r, "Failed to deserialize unit \"%s\", skipping: %m", name); | |
3250 | } | |
3251 | ||
3252 | return 0; | |
3253 | } | |
3254 | ||
3255 | static int manager_deserialize_units(Manager *m, FILE *f, FDSet *fds) { | |
651b3b6c FB |
3256 | const char *unit_name; |
3257 | int r; | |
3258 | ||
3259 | for (;;) { | |
7334ade4 | 3260 | _cleanup_free_ char *line = NULL; |
651b3b6c FB |
3261 | /* Start marker */ |
3262 | r = read_line(f, LONG_LINE_MAX, &line); | |
3263 | if (r < 0) | |
3264 | return log_error_errno(r, "Failed to read serialization line: %m"); | |
3265 | if (r == 0) | |
3266 | break; | |
3267 | ||
3268 | unit_name = strstrip(line); | |
3269 | ||
3270 | r = manager_deserialize_one_unit(m, unit_name, f, fds); | |
3271 | if (r == -ENOMEM) | |
3272 | return r; | |
3273 | if (r < 0) { | |
3274 | r = unit_deserialize_skip(f); | |
3275 | if (r < 0) | |
3276 | return r; | |
3277 | } | |
3278 | } | |
3279 | ||
3280 | return 0; | |
3281 | } | |
3282 | ||
a16e1123 LP |
3283 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { |
3284 | int r = 0; | |
3285 | ||
3286 | assert(m); | |
3287 | assert(f); | |
3288 | ||
3289 | log_debug("Deserializing state..."); | |
3290 | ||
eb10d0bf LP |
3291 | /* If we are not in reload mode yet, enter it now. Not that this is recursive, a caller might already have |
3292 | * increased it to non-zero, which is why we just increase it by one here and down again at the end of this | |
3293 | * call. */ | |
cb16b085 | 3294 | _cleanup_(manager_reloading_stopp) _unused_ Manager *reloading = manager_reloading_start(m); |
82c64bf5 | 3295 | |
10f8e83c | 3296 | for (;;) { |
8948b341 | 3297 | _cleanup_free_ char *line = NULL; |
d233c99a | 3298 | const char *val, *l; |
10f8e83c | 3299 | |
8948b341 LP |
3300 | r = read_line(f, LONG_LINE_MAX, &line); |
3301 | if (r < 0) | |
3302 | return log_error_errno(r, "Failed to read serialization line: %m"); | |
3303 | if (r == 0) | |
3304 | break; | |
10f8e83c | 3305 | |
10f8e83c | 3306 | l = strstrip(line); |
8948b341 | 3307 | if (isempty(l)) /* end marker */ |
10f8e83c LP |
3308 | break; |
3309 | ||
fb4650aa | 3310 | if ((val = startswith(l, "current-job-id="))) { |
01d67b43 LP |
3311 | uint32_t id; |
3312 | ||
fb4650aa | 3313 | if (safe_atou32(val, &id) < 0) |
b2a8a3dd | 3314 | log_notice("Failed to parse current job id value '%s', ignoring.", val); |
01d67b43 LP |
3315 | else |
3316 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 3317 | |
fb4650aa | 3318 | } else if ((val = startswith(l, "n-installed-jobs="))) { |
33c5fae9 LP |
3319 | uint32_t n; |
3320 | ||
fb4650aa | 3321 | if (safe_atou32(val, &n) < 0) |
b2a8a3dd | 3322 | log_notice("Failed to parse installed jobs counter '%s', ignoring.", val); |
33c5fae9 LP |
3323 | else |
3324 | m->n_installed_jobs += n; | |
718db961 | 3325 | |
fb4650aa | 3326 | } else if ((val = startswith(l, "n-failed-jobs="))) { |
33c5fae9 LP |
3327 | uint32_t n; |
3328 | ||
fb4650aa | 3329 | if (safe_atou32(val, &n) < 0) |
b2a8a3dd | 3330 | log_notice("Failed to parse failed jobs counter '%s', ignoring.", val); |
33c5fae9 LP |
3331 | else |
3332 | m->n_failed_jobs += n; | |
718db961 | 3333 | |
fb4650aa | 3334 | } else if ((val = startswith(l, "taint-usr="))) { |
01d67b43 LP |
3335 | int b; |
3336 | ||
fb4650aa | 3337 | b = parse_boolean(val); |
e3dd987c | 3338 | if (b < 0) |
b2a8a3dd | 3339 | log_notice("Failed to parse taint /usr flag '%s', ignoring.", val); |
01d67b43 LP |
3340 | else |
3341 | m->taint_usr = m->taint_usr || b; | |
718db961 | 3342 | |
0c2826c6 ZJS |
3343 | } else if ((val = startswith(l, "ready-sent="))) { |
3344 | int b; | |
3345 | ||
3346 | b = parse_boolean(val); | |
3347 | if (b < 0) | |
b2a8a3dd | 3348 | log_notice("Failed to parse ready-sent flag '%s', ignoring.", val); |
0c2826c6 ZJS |
3349 | else |
3350 | m->ready_sent = m->ready_sent || b; | |
3351 | ||
d8eb10d6 ZJS |
3352 | } else if ((val = startswith(l, "taint-logged="))) { |
3353 | int b; | |
3354 | ||
3355 | b = parse_boolean(val); | |
3356 | if (b < 0) | |
b2a8a3dd | 3357 | log_notice("Failed to parse taint-logged flag '%s', ignoring.", val); |
d8eb10d6 ZJS |
3358 | else |
3359 | m->taint_logged = m->taint_logged || b; | |
3360 | ||
2a12e32e JK |
3361 | } else if ((val = startswith(l, "service-watchdogs="))) { |
3362 | int b; | |
3363 | ||
3364 | b = parse_boolean(val); | |
3365 | if (b < 0) | |
b2a8a3dd | 3366 | log_notice("Failed to parse service-watchdogs flag '%s', ignoring.", val); |
2a12e32e JK |
3367 | else |
3368 | m->service_watchdogs = b; | |
3369 | ||
c6e892bc YW |
3370 | } else if ((val = startswith(l, "honor-device-enumeration="))) { |
3371 | int b; | |
3372 | ||
3373 | b = parse_boolean(val); | |
3374 | if (b < 0) | |
3375 | log_notice("Failed to parse honor-device-enumeration flag '%s', ignoring.", val); | |
3376 | else | |
3377 | m->honor_device_enumeration = b; | |
3378 | ||
bee38b5c YW |
3379 | } else if ((val = startswith(l, "show-status="))) { |
3380 | ShowStatus s; | |
3381 | ||
3382 | s = show_status_from_string(val); | |
3383 | if (s < 0) | |
b2a8a3dd | 3384 | log_notice("Failed to parse show-status flag '%s', ignoring.", val); |
bee38b5c YW |
3385 | else |
3386 | manager_set_show_status(m, s); | |
3387 | ||
a6ecbf83 FB |
3388 | } else if ((val = startswith(l, "log-level-override="))) { |
3389 | int level; | |
3390 | ||
3391 | level = log_level_from_string(val); | |
3392 | if (level < 0) | |
3393 | log_notice("Failed to parse log-level-override value '%s', ignoring.", val); | |
3394 | else | |
3395 | manager_override_log_level(m, level); | |
3396 | ||
bda7d78b FB |
3397 | } else if ((val = startswith(l, "log-target-override="))) { |
3398 | LogTarget target; | |
3399 | ||
3400 | target = log_target_from_string(val); | |
3401 | if (target < 0) | |
3402 | log_notice("Failed to parse log-target-override value '%s', ignoring.", val); | |
3403 | else | |
3404 | manager_override_log_target(m, target); | |
3405 | ||
9f9f0342 | 3406 | } else if (startswith(l, "env=")) { |
1ad6e8b3 | 3407 | r = deserialize_environment(l + 4, &m->client_environment); |
527b7a42 | 3408 | if (r < 0) |
b2a8a3dd | 3409 | log_notice_errno(r, "Failed to parse environment entry: \"%s\", ignoring: %m", l); |
e3dd987c | 3410 | |
fb4650aa | 3411 | } else if ((val = startswith(l, "notify-fd="))) { |
d86f9d52 LP |
3412 | int fd; |
3413 | ||
fb4650aa | 3414 | if (safe_atoi(val, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
b2a8a3dd | 3415 | log_notice("Failed to parse notify fd, ignoring: \"%s\"", val); |
d86f9d52 | 3416 | else { |
03e334a1 LP |
3417 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
3418 | safe_close(m->notify_fd); | |
d86f9d52 LP |
3419 | m->notify_fd = fdset_remove(fds, fd); |
3420 | } | |
3421 | ||
fb4650aa | 3422 | } else if ((val = startswith(l, "notify-socket="))) { |
05067c3c ZJS |
3423 | r = free_and_strdup(&m->notify_socket, val); |
3424 | if (r < 0) | |
3425 | return r; | |
d86f9d52 | 3426 | |
fb4650aa | 3427 | } else if ((val = startswith(l, "cgroups-agent-fd="))) { |
d8fdc620 LP |
3428 | int fd; |
3429 | ||
fb4650aa | 3430 | if (safe_atoi(val, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
b2a8a3dd | 3431 | log_notice("Failed to parse cgroups agent fd, ignoring.: %s", val); |
d8fdc620 LP |
3432 | else { |
3433 | m->cgroups_agent_event_source = sd_event_source_unref(m->cgroups_agent_event_source); | |
3434 | safe_close(m->cgroups_agent_fd); | |
3435 | m->cgroups_agent_fd = fdset_remove(fds, fd); | |
3436 | } | |
3437 | ||
fb4650aa | 3438 | } else if ((val = startswith(l, "user-lookup="))) { |
00d9ef85 LP |
3439 | int fd0, fd1; |
3440 | ||
fb4650aa | 3441 | if (sscanf(val, "%i %i", &fd0, &fd1) != 2 || fd0 < 0 || fd1 < 0 || fd0 == fd1 || !fdset_contains(fds, fd0) || !fdset_contains(fds, fd1)) |
b2a8a3dd | 3442 | log_notice("Failed to parse user lookup fd, ignoring: %s", val); |
00d9ef85 LP |
3443 | else { |
3444 | m->user_lookup_event_source = sd_event_source_unref(m->user_lookup_event_source); | |
3445 | safe_close_pair(m->user_lookup_fds); | |
3446 | m->user_lookup_fds[0] = fdset_remove(fds, fd0); | |
3447 | m->user_lookup_fds[1] = fdset_remove(fds, fd1); | |
3448 | } | |
3449 | ||
fb4650aa ZJS |
3450 | } else if ((val = startswith(l, "dynamic-user="))) |
3451 | dynamic_user_deserialize_one(m, val, fds); | |
3452 | else if ((val = startswith(l, "destroy-ipc-uid="))) | |
3453 | manager_deserialize_uid_refs_one(m, val); | |
3454 | else if ((val = startswith(l, "destroy-ipc-gid="))) | |
3455 | manager_deserialize_gid_refs_one(m, val); | |
e8a565cb YW |
3456 | else if ((val = startswith(l, "exec-runtime="))) |
3457 | exec_runtime_deserialize_one(m, val, fds); | |
fb4650aa | 3458 | else if ((val = startswith(l, "subscribed="))) { |
05a98afd | 3459 | |
05067c3c ZJS |
3460 | if (strv_extend(&m->deserialized_subscribed, val) < 0) |
3461 | return -ENOMEM; | |
18869883 | 3462 | |
9f9f0342 LP |
3463 | } else { |
3464 | ManagerTimestamp q; | |
3465 | ||
3466 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { | |
3467 | val = startswith(l, manager_timestamp_to_string(q)); | |
3468 | if (!val) | |
3469 | continue; | |
05a98afd | 3470 | |
9f9f0342 LP |
3471 | val = startswith(val, "-timestamp="); |
3472 | if (val) | |
3473 | break; | |
3474 | } | |
05a98afd | 3475 | |
9f9f0342 | 3476 | if (q < _MANAGER_TIMESTAMP_MAX) /* found it */ |
d68c645b | 3477 | (void) deserialize_dual_timestamp(val, m->timestamps + q); |
9f9f0342 | 3478 | else if (!startswith(l, "kdbus-fd=")) /* ignore kdbus */ |
b2a8a3dd | 3479 | log_notice("Unknown serialization item '%s', ignoring.", l); |
9f9f0342 | 3480 | } |
10f8e83c LP |
3481 | } |
3482 | ||
651b3b6c | 3483 | return manager_deserialize_units(m, f, fds); |
a16e1123 LP |
3484 | } |
3485 | ||
3486 | int manager_reload(Manager *m) { | |
d147e2b6 | 3487 | _cleanup_(manager_reloading_stopp) Manager *reloading = NULL; |
51d122af | 3488 | _cleanup_fdset_free_ FDSet *fds = NULL; |
6a33af40 LP |
3489 | _cleanup_fclose_ FILE *f = NULL; |
3490 | int r; | |
a16e1123 LP |
3491 | |
3492 | assert(m); | |
3493 | ||
07719a21 LP |
3494 | r = manager_open_serialization(m, &f); |
3495 | if (r < 0) | |
6a33af40 | 3496 | return log_error_errno(r, "Failed to create serialization file: %m"); |
38c52d46 | 3497 | |
07719a21 | 3498 | fds = fdset_new(); |
6a33af40 LP |
3499 | if (!fds) |
3500 | return log_oom(); | |
3501 | ||
d147e2b6 ZJS |
3502 | /* We are officially in reload mode from here on. */ |
3503 | reloading = manager_reloading_start(m); | |
a16e1123 | 3504 | |
b3680f49 | 3505 | r = manager_serialize(m, f, fds, false); |
d147e2b6 | 3506 | if (r < 0) |
d68c645b | 3507 | return r; |
a16e1123 | 3508 | |
d147e2b6 ZJS |
3509 | if (fseeko(f, 0, SEEK_SET) < 0) |
3510 | return log_error_errno(errno, "Failed to seek to beginning of serialization: %m"); | |
a16e1123 | 3511 | |
6a33af40 | 3512 | /* 💀 This is the point of no return, from here on there is no way back. 💀 */ |
d147e2b6 | 3513 | reloading = NULL; |
6a33af40 LP |
3514 | |
3515 | bus_manager_send_reloading(m, true); | |
3516 | ||
3517 | /* Start by flushing out all jobs and units, all generated units, all runtime environments, all dynamic users | |
3518 | * and everything else that is worth flushing out. We'll get it all back from the serialization — if we need | |
3519 | * it.*/ | |
3520 | ||
a16e1123 | 3521 | manager_clear_jobs_and_units(m); |
07a78643 | 3522 | lookup_paths_flush_generator(&m->lookup_paths); |
84e3543e | 3523 | lookup_paths_free(&m->lookup_paths); |
e8a565cb | 3524 | exec_runtime_vacuum(m); |
29206d46 | 3525 | dynamic_user_vacuum(m, false); |
00d9ef85 LP |
3526 | m->uid_refs = hashmap_free(m->uid_refs); |
3527 | m->gid_refs = hashmap_free(m->gid_refs); | |
2ded0c04 | 3528 | |
7c3733d5 | 3529 | r = lookup_paths_init(&m->lookup_paths, m->unit_file_scope, 0, NULL); |
6a33af40 LP |
3530 | if (r < 0) |
3531 | log_warning_errno(r, "Failed to initialize path lookup table, ignoring: %m"); | |
5a1e9937 | 3532 | |
6a33af40 LP |
3533 | (void) manager_run_environment_generators(m); |
3534 | (void) manager_run_generators(m); | |
64691d20 | 3535 | |
581fef8d | 3536 | lookup_paths_log(&m->lookup_paths); |
07719a21 | 3537 | |
91e0ee5f | 3538 | /* We flushed out generated files, for which we don't watch mtime, so we should flush the old map. */ |
e8630e69 | 3539 | manager_free_unit_name_maps(m); |
5a1e9937 | 3540 | |
6a33af40 | 3541 | /* First, enumerate what we can from kernel and suchlike */ |
3ad2afb6 | 3542 | manager_enumerate_perpetual(m); |
ba64af90 | 3543 | manager_enumerate(m); |
a16e1123 LP |
3544 | |
3545 | /* Second, deserialize our stored data */ | |
6a33af40 LP |
3546 | r = manager_deserialize(m, f, fds); |
3547 | if (r < 0) | |
3548 | log_warning_errno(r, "Deserialization failed, proceeding anyway: %m"); | |
a16e1123 | 3549 | |
6a33af40 | 3550 | /* We don't need the serialization anymore */ |
62b0cbb3 | 3551 | f = safe_fclose(f); |
a16e1123 | 3552 | |
6a33af40 LP |
3553 | /* Re-register notify_fd as event source, and set up other sockets/communication channels we might need */ |
3554 | (void) manager_setup_notify(m); | |
3555 | (void) manager_setup_cgroups_agent(m); | |
3556 | (void) manager_setup_user_lookup_fd(m); | |
00d9ef85 | 3557 | |
a16e1123 | 3558 | /* Third, fire things up! */ |
007c6337 | 3559 | manager_coldplug(m); |
a16e1123 | 3560 | |
5197be06 LP |
3561 | /* Clean up runtime objects no longer referenced */ |
3562 | manager_vacuum(m); | |
e8a565cb | 3563 | |
6a33af40 | 3564 | /* Consider the reload process complete now. */ |
31dc1ca3 LP |
3565 | assert(m->n_reloading > 0); |
3566 | m->n_reloading--; | |
3567 | ||
c6e892bc YW |
3568 | /* On manager reloading, device tag data should exists, thus, we should honor the results of device |
3569 | * enumeration. The flag should be always set correctly by the serialized data, but it may fail. So, | |
3570 | * let's always set the flag here for safety. */ | |
3571 | m->honor_device_enumeration = true; | |
3572 | ||
5ce5e1ad | 3573 | manager_ready(m); |
8936a5e3 | 3574 | |
71445ae7 | 3575 | m->send_reloading_done = true; |
6a33af40 | 3576 | return 0; |
a16e1123 LP |
3577 | } |
3578 | ||
fdf20a31 | 3579 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
3580 | Unit *u; |
3581 | Iterator i; | |
3582 | ||
3583 | assert(m); | |
3584 | ||
3585 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 3586 | unit_reset_failed(u); |
5632e374 LP |
3587 | } |
3588 | ||
31afa0a4 | 3589 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
3590 | Unit *u; |
3591 | ||
3592 | assert(m); | |
3593 | assert(name); | |
3594 | ||
3595 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
3596 | u = manager_get_unit(m, name); |
3597 | if (!u) | |
8f6df3fa LP |
3598 | return true; |
3599 | ||
31afa0a4 | 3600 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
3601 | } |
3602 | ||
d8eb10d6 ZJS |
3603 | static void log_taint_string(Manager *m) { |
3604 | _cleanup_free_ char *taint = NULL; | |
3605 | ||
3606 | assert(m); | |
3607 | ||
3608 | if (MANAGER_IS_USER(m) || m->taint_logged) | |
3609 | return; | |
3610 | ||
3611 | m->taint_logged = true; /* only check for taint once */ | |
3612 | ||
3613 | taint = manager_taint_string(m); | |
3614 | if (isempty(taint)) | |
3615 | return; | |
3616 | ||
3617 | log_struct(LOG_NOTICE, | |
3618 | LOG_MESSAGE("System is tainted: %s", taint), | |
3619 | "TAINT=%s", taint, | |
a1230ff9 | 3620 | "MESSAGE_ID=" SD_MESSAGE_TAINTED_STR); |
d8eb10d6 ZJS |
3621 | } |
3622 | ||
56dacdbc | 3623 | static void manager_notify_finished(Manager *m) { |
7ceba241 | 3624 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 3625 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 | 3626 | |
638cece4 | 3627 | if (MANAGER_IS_TEST_RUN(m)) |
b0c918b9 LP |
3628 | return; |
3629 | ||
463d0d15 | 3630 | if (MANAGER_IS_SYSTEM(m) && detect_container() <= 0) { |
dd1db3c2 | 3631 | char ts[FORMAT_TIMESPAN_MAX]; |
dc3c9f5e ZJS |
3632 | char buf[FORMAT_TIMESPAN_MAX + STRLEN(" (firmware) + ") + FORMAT_TIMESPAN_MAX + STRLEN(" (loader) + ")] |
3633 | = {}; | |
3634 | char *p = buf; | |
3635 | size_t size = sizeof buf; | |
e03ae661 | 3636 | |
9f9f0342 LP |
3637 | /* Note that MANAGER_TIMESTAMP_KERNEL's monotonic value is always at 0, and |
3638 | * MANAGER_TIMESTAMP_FIRMWARE's and MANAGER_TIMESTAMP_LOADER's monotonic value should be considered | |
915b3753 LP |
3639 | * negative values. */ |
3640 | ||
9f9f0342 LP |
3641 | firmware_usec = m->timestamps[MANAGER_TIMESTAMP_FIRMWARE].monotonic - m->timestamps[MANAGER_TIMESTAMP_LOADER].monotonic; |
3642 | loader_usec = m->timestamps[MANAGER_TIMESTAMP_LOADER].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
3643 | userspace_usec = m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic - m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic; | |
3644 | total_usec = m->timestamps[MANAGER_TIMESTAMP_FIRMWARE].monotonic + m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic; | |
18fa6b27 | 3645 | |
dd1db3c2 YW |
3646 | if (firmware_usec > 0) |
3647 | size = strpcpyf(&p, size, "%s (firmware) + ", format_timespan(ts, sizeof(ts), firmware_usec, USEC_PER_MSEC)); | |
3648 | if (loader_usec > 0) | |
3649 | size = strpcpyf(&p, size, "%s (loader) + ", format_timespan(ts, sizeof(ts), loader_usec, USEC_PER_MSEC)); | |
3650 | ||
9f9f0342 | 3651 | if (dual_timestamp_is_set(&m->timestamps[MANAGER_TIMESTAMP_INITRD])) { |
18fa6b27 | 3652 | |
9f9f0342 LP |
3653 | /* The initrd case on bare-metal*/ |
3654 | kernel_usec = m->timestamps[MANAGER_TIMESTAMP_INITRD].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
3655 | initrd_usec = m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic - m->timestamps[MANAGER_TIMESTAMP_INITRD].monotonic; | |
18fa6b27 | 3656 | |
e12919e8 | 3657 | log_struct(LOG_INFO, |
2b044526 | 3658 | "MESSAGE_ID=" SD_MESSAGE_STARTUP_FINISHED_STR, |
e12919e8 LP |
3659 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
3660 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
3661 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
dd1db3c2 YW |
3662 | LOG_MESSAGE("Startup finished in %s%s (kernel) + %s (initrd) + %s (userspace) = %s.", |
3663 | buf, | |
e2cc6eca LP |
3664 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
3665 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
3666 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
a1230ff9 | 3667 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
18fa6b27 | 3668 | } else { |
9f9f0342 LP |
3669 | /* The initrd-less case on bare-metal*/ |
3670 | ||
3671 | kernel_usec = m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
18fa6b27 LP |
3672 | initrd_usec = 0; |
3673 | ||
81270860 | 3674 | log_struct(LOG_INFO, |
2b044526 | 3675 | "MESSAGE_ID=" SD_MESSAGE_STARTUP_FINISHED_STR, |
e12919e8 | 3676 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
ccd06097 | 3677 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
dd1db3c2 YW |
3678 | LOG_MESSAGE("Startup finished in %s%s (kernel) + %s (userspace) = %s.", |
3679 | buf, | |
e2cc6eca LP |
3680 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
3681 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
a1230ff9 | 3682 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
e12919e8 LP |
3683 | } |
3684 | } else { | |
4adf314b | 3685 | /* The container and --user case */ |
e12919e8 | 3686 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
9f9f0342 | 3687 | total_usec = userspace_usec = m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic - m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic; |
e12919e8 LP |
3688 | |
3689 | log_struct(LOG_INFO, | |
2b044526 | 3690 | "MESSAGE_ID=" SD_MESSAGE_USER_STARTUP_FINISHED_STR, |
e12919e8 | 3691 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
e2cc6eca | 3692 | LOG_MESSAGE("Startup finished in %s.", |
a1230ff9 | 3693 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
18fa6b27 | 3694 | } |
b0c918b9 | 3695 | |
718db961 | 3696 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
3697 | |
3698 | sd_notifyf(false, | |
0c2826c6 ZJS |
3699 | m->ready_sent ? "STATUS=Startup finished in %s." |
3700 | : "READY=1\n" | |
3701 | "STATUS=Startup finished in %s.", | |
2fa4092c | 3702 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
0c2826c6 | 3703 | m->ready_sent = true; |
d8eb10d6 ZJS |
3704 | |
3705 | log_taint_string(m); | |
b0c918b9 LP |
3706 | } |
3707 | ||
4adf314b LP |
3708 | static void manager_send_ready(Manager *m) { |
3709 | assert(m); | |
3710 | ||
3711 | /* We send READY=1 on reaching basic.target only when running in --user mode. */ | |
3712 | if (!MANAGER_IS_USER(m) || m->ready_sent) | |
3713 | return; | |
3714 | ||
3715 | m->ready_sent = true; | |
3716 | ||
3717 | sd_notifyf(false, | |
3718 | "READY=1\n" | |
3719 | "STATUS=Reached " SPECIAL_BASIC_TARGET "."); | |
3720 | } | |
3721 | ||
3722 | static void manager_check_basic_target(Manager *m) { | |
3723 | Unit *u; | |
3724 | ||
3725 | assert(m); | |
3726 | ||
3727 | /* Small shortcut */ | |
3728 | if (m->ready_sent && m->taint_logged) | |
3729 | return; | |
3730 | ||
3731 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3732 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3733 | return; | |
3734 | ||
3735 | /* For user managers, send out READY=1 as soon as we reach basic.target */ | |
3736 | manager_send_ready(m); | |
3737 | ||
3738 | /* Log the taint string as soon as we reach basic.target */ | |
3739 | log_taint_string(m); | |
3740 | } | |
3741 | ||
56dacdbc | 3742 | void manager_check_finished(Manager *m) { |
56dacdbc ZJS |
3743 | assert(m); |
3744 | ||
2c289ea8 | 3745 | if (MANAGER_IS_RELOADING(m)) |
aad1976f LP |
3746 | return; |
3747 | ||
4259d202 LP |
3748 | /* Verify that we have entered the event loop already, and not left it again. */ |
3749 | if (!MANAGER_IS_RUNNING(m)) | |
9771b62d LP |
3750 | return; |
3751 | ||
4adf314b | 3752 | manager_check_basic_target(m); |
0c2826c6 | 3753 | |
56dacdbc | 3754 | if (hashmap_size(m->jobs) > 0) { |
56dacdbc | 3755 | if (m->jobs_in_progress_event_source) |
2ae56591 | 3756 | /* Ignore any failure, this is only for feedback */ |
e7ab4d1a | 3757 | (void) sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC); |
56dacdbc ZJS |
3758 | |
3759 | return; | |
3760 | } | |
3761 | ||
3762 | manager_flip_auto_status(m, false); | |
3763 | ||
3764 | /* Notify Type=idle units that we are done now */ | |
56dacdbc ZJS |
3765 | manager_close_idle_pipe(m); |
3766 | ||
3767 | /* Turn off confirm spawn now */ | |
7d5ceb64 | 3768 | m->confirm_spawn = NULL; |
56dacdbc ZJS |
3769 | |
3770 | /* No need to update ask password status when we're going non-interactive */ | |
3771 | manager_close_ask_password(m); | |
3772 | ||
3773 | /* This is no longer the first boot */ | |
3774 | manager_set_first_boot(m, false); | |
3775 | ||
49d5666c | 3776 | if (MANAGER_IS_FINISHED(m)) |
56dacdbc ZJS |
3777 | return; |
3778 | ||
9f9f0342 | 3779 | dual_timestamp_get(m->timestamps + MANAGER_TIMESTAMP_FINISH); |
56dacdbc ZJS |
3780 | |
3781 | manager_notify_finished(m); | |
3782 | ||
e7ab4d1a | 3783 | manager_invalidate_startup_units(m); |
56dacdbc ZJS |
3784 | } |
3785 | ||
64691d20 ZJS |
3786 | static bool generator_path_any(const char* const* paths) { |
3787 | char **path; | |
3788 | bool found = false; | |
3789 | ||
3790 | /* Optimize by skipping the whole process by not creating output directories | |
3791 | * if no generators are found. */ | |
3792 | STRV_FOREACH(path, (char**) paths) | |
3793 | if (access(*path, F_OK) == 0) | |
3794 | found = true; | |
3795 | else if (errno != ENOENT) | |
3796 | log_warning_errno(errno, "Failed to open generator directory %s: %m", *path); | |
3797 | ||
3798 | return found; | |
3799 | } | |
3800 | ||
b82f71c7 | 3801 | static const char *const system_env_generator_binary_paths[] = { |
64691d20 ZJS |
3802 | "/run/systemd/system-environment-generators", |
3803 | "/etc/systemd/system-environment-generators", | |
3804 | "/usr/local/lib/systemd/system-environment-generators", | |
3805 | SYSTEM_ENV_GENERATOR_PATH, | |
3806 | NULL | |
3807 | }; | |
3808 | ||
b82f71c7 | 3809 | static const char *const user_env_generator_binary_paths[] = { |
64691d20 ZJS |
3810 | "/run/systemd/user-environment-generators", |
3811 | "/etc/systemd/user-environment-generators", | |
3812 | "/usr/local/lib/systemd/user-environment-generators", | |
3813 | USER_ENV_GENERATOR_PATH, | |
3814 | NULL | |
3815 | }; | |
3816 | ||
3817 | static int manager_run_environment_generators(Manager *m) { | |
3818 | char **tmp = NULL; /* this is only used in the forked process, no cleanup here */ | |
b82f71c7 | 3819 | const char *const *paths; |
1ad6e8b3 LP |
3820 | void* args[] = { |
3821 | [STDOUT_GENERATE] = &tmp, | |
3822 | [STDOUT_COLLECT] = &tmp, | |
3823 | [STDOUT_CONSUME] = &m->transient_environment, | |
3824 | }; | |
e3b8d063 | 3825 | int r; |
64691d20 | 3826 | |
638cece4 | 3827 | if (MANAGER_IS_TEST_RUN(m) && !(m->test_run_flags & MANAGER_TEST_RUN_ENV_GENERATORS)) |
e0a3da1f ZJS |
3828 | return 0; |
3829 | ||
64691d20 ZJS |
3830 | paths = MANAGER_IS_SYSTEM(m) ? system_env_generator_binary_paths : user_env_generator_binary_paths; |
3831 | ||
3832 | if (!generator_path_any(paths)) | |
3833 | return 0; | |
3834 | ||
e3b8d063 | 3835 | RUN_WITH_UMASK(0022) |
4b05f0c9 MK |
3836 | r = execute_directories(paths, DEFAULT_TIMEOUT_USEC, gather_environment, |
3837 | args, NULL, m->transient_environment, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); | |
e3b8d063 | 3838 | return r; |
64691d20 ZJS |
3839 | } |
3840 | ||
e801700e | 3841 | static int manager_run_generators(Manager *m) { |
f42348ac | 3842 | _cleanup_strv_free_ char **paths = NULL; |
07719a21 | 3843 | const char *argv[5]; |
07719a21 | 3844 | int r; |
5a1e9937 LP |
3845 | |
3846 | assert(m); | |
3847 | ||
638cece4 | 3848 | if (MANAGER_IS_TEST_RUN(m) && !(m->test_run_flags & MANAGER_TEST_RUN_GENERATORS)) |
e0a3da1f ZJS |
3849 | return 0; |
3850 | ||
9183df70 | 3851 | paths = generator_binary_paths(m->unit_file_scope); |
e801700e ZJS |
3852 | if (!paths) |
3853 | return log_oom(); | |
5a1e9937 | 3854 | |
64691d20 ZJS |
3855 | if (!generator_path_any((const char* const*) paths)) |
3856 | return 0; | |
5a1e9937 | 3857 | |
cd64fd56 | 3858 | r = lookup_paths_mkdir_generator(&m->lookup_paths); |
7eb4f326 LP |
3859 | if (r < 0) { |
3860 | log_error_errno(r, "Failed to create generator directories: %m"); | |
07719a21 | 3861 | goto finish; |
7eb4f326 | 3862 | } |
5a1e9937 | 3863 | |
83cc030f | 3864 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
a3c4eb07 LP |
3865 | argv[1] = m->lookup_paths.generator; |
3866 | argv[2] = m->lookup_paths.generator_early; | |
3867 | argv[3] = m->lookup_paths.generator_late; | |
07719a21 | 3868 | argv[4] = NULL; |
5a1e9937 | 3869 | |
718db961 | 3870 | RUN_WITH_UMASK(0022) |
4b05f0c9 MK |
3871 | (void) execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, NULL, NULL, |
3872 | (char**) argv, m->transient_environment, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); | |
7eb4f326 LP |
3873 | |
3874 | r = 0; | |
5a1e9937 | 3875 | |
718db961 | 3876 | finish: |
cd64fd56 | 3877 | lookup_paths_trim_generator(&m->lookup_paths); |
e801700e | 3878 | return r; |
5a1e9937 LP |
3879 | } |
3880 | ||
1ad6e8b3 LP |
3881 | int manager_transient_environment_add(Manager *m, char **plus) { |
3882 | char **a; | |
3883 | ||
3884 | assert(m); | |
3885 | ||
3886 | if (strv_isempty(plus)) | |
3887 | return 0; | |
3888 | ||
3889 | a = strv_env_merge(2, m->transient_environment, plus); | |
3890 | if (!a) | |
2fbbbf9a | 3891 | return log_oom(); |
1ad6e8b3 LP |
3892 | |
3893 | sanitize_environment(a); | |
3894 | ||
3895 | return strv_free_and_replace(m->transient_environment, a); | |
3896 | } | |
3897 | ||
3898 | int manager_client_environment_modify( | |
3899 | Manager *m, | |
3900 | char **minus, | |
3901 | char **plus) { | |
3902 | ||
718db961 | 3903 | char **a = NULL, **b = NULL, **l; |
1ad6e8b3 | 3904 | |
97d0e5f8 | 3905 | assert(m); |
bcd8e6d1 | 3906 | |
1ad6e8b3 LP |
3907 | if (strv_isempty(minus) && strv_isempty(plus)) |
3908 | return 0; | |
3909 | ||
3910 | l = m->client_environment; | |
bcd8e6d1 | 3911 | |
718db961 LP |
3912 | if (!strv_isempty(minus)) { |
3913 | a = strv_env_delete(l, 1, minus); | |
3914 | if (!a) | |
3915 | return -ENOMEM; | |
3916 | ||
3917 | l = a; | |
3918 | } | |
3919 | ||
3920 | if (!strv_isempty(plus)) { | |
3921 | b = strv_env_merge(2, l, plus); | |
aa9f8a30 AH |
3922 | if (!b) { |
3923 | strv_free(a); | |
718db961 | 3924 | return -ENOMEM; |
aa9f8a30 | 3925 | } |
bcd8e6d1 | 3926 | |
718db961 LP |
3927 | l = b; |
3928 | } | |
3929 | ||
1ad6e8b3 LP |
3930 | if (m->client_environment != l) |
3931 | strv_free(m->client_environment); | |
3932 | ||
718db961 LP |
3933 | if (a != l) |
3934 | strv_free(a); | |
3935 | if (b != l) | |
3936 | strv_free(b); | |
3937 | ||
1ad6e8b3 LP |
3938 | m->client_environment = sanitize_environment(l); |
3939 | return 0; | |
3940 | } | |
3941 | ||
3942 | int manager_get_effective_environment(Manager *m, char ***ret) { | |
3943 | char **l; | |
3944 | ||
3945 | assert(m); | |
3946 | assert(ret); | |
3947 | ||
3948 | l = strv_env_merge(2, m->transient_environment, m->client_environment); | |
3949 | if (!l) | |
3950 | return -ENOMEM; | |
f069efb4 | 3951 | |
1ad6e8b3 | 3952 | *ret = l; |
97d0e5f8 UTL |
3953 | return 0; |
3954 | } | |
3955 | ||
c93ff2e9 FC |
3956 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
3957 | int i; | |
3958 | ||
3959 | assert(m); | |
3960 | ||
517d56b1 | 3961 | for (i = 0; i < _RLIMIT_MAX; i++) { |
d9814c76 EV |
3962 | m->rlimit[i] = mfree(m->rlimit[i]); |
3963 | ||
07719a21 LP |
3964 | if (!default_rlimit[i]) |
3965 | continue; | |
c93ff2e9 | 3966 | |
07719a21 LP |
3967 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
3968 | if (!m->rlimit[i]) | |
3ce40911 | 3969 | return log_oom(); |
c93ff2e9 FC |
3970 | } |
3971 | ||
3972 | return 0; | |
3973 | } | |
3974 | ||
8559b3b7 LP |
3975 | void manager_recheck_dbus(Manager *m) { |
3976 | assert(m); | |
3977 | ||
3978 | /* Connects to the bus if the dbus service and socket are running. If we are running in user mode this is all | |
3979 | * it does. In system mode we'll also connect to the system bus (which will most likely just reuse the | |
3980 | * connection of the API bus). That's because the system bus after all runs as service of the system instance, | |
3981 | * while in the user instance we can assume it's already there. */ | |
3982 | ||
31dc1ca3 LP |
3983 | if (MANAGER_IS_RELOADING(m)) |
3984 | return; /* don't check while we are reloading… */ | |
3985 | ||
8559b3b7 LP |
3986 | if (manager_dbus_is_running(m, false)) { |
3987 | (void) bus_init_api(m); | |
3988 | ||
3989 | if (MANAGER_IS_SYSTEM(m)) | |
3990 | (void) bus_init_system(m); | |
3991 | } else { | |
3992 | (void) bus_done_api(m); | |
3993 | ||
3994 | if (MANAGER_IS_SYSTEM(m)) | |
3995 | (void) bus_done_system(m); | |
3996 | } | |
3997 | } | |
3998 | ||
d075092f | 3999 | static bool manager_journal_is_running(Manager *m) { |
f1dd0c3f LP |
4000 | Unit *u; |
4001 | ||
4002 | assert(m); | |
4003 | ||
638cece4 | 4004 | if (MANAGER_IS_TEST_RUN(m)) |
7d814a19 LP |
4005 | return false; |
4006 | ||
d075092f | 4007 | /* If we are the user manager we can safely assume that the journal is up */ |
463d0d15 | 4008 | if (!MANAGER_IS_SYSTEM(m)) |
d075092f | 4009 | return true; |
f1dd0c3f | 4010 | |
d075092f | 4011 | /* Check that the socket is not only up, but in RUNNING state */ |
731a676c | 4012 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
d075092f LP |
4013 | if (!u) |
4014 | return false; | |
4015 | if (SOCKET(u)->state != SOCKET_RUNNING) | |
4016 | return false; | |
f1dd0c3f | 4017 | |
d075092f | 4018 | /* Similar, check if the daemon itself is fully up, too */ |
731a676c | 4019 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
d075092f LP |
4020 | if (!u) |
4021 | return false; | |
217677ab | 4022 | if (!IN_SET(SERVICE(u)->state, SERVICE_RELOAD, SERVICE_RUNNING)) |
d075092f LP |
4023 | return false; |
4024 | ||
4025 | return true; | |
4026 | } | |
4027 | ||
4028 | void manager_recheck_journal(Manager *m) { | |
4029 | ||
4030 | assert(m); | |
4031 | ||
4032 | /* Don't bother with this unless we are in the special situation of being PID 1 */ | |
4033 | if (getpid_cached() != 1) | |
731a676c | 4034 | return; |
f1dd0c3f | 4035 | |
31dc1ca3 LP |
4036 | /* Don't check this while we are reloading, things might still change */ |
4037 | if (MANAGER_IS_RELOADING(m)) | |
4038 | return; | |
4039 | ||
cedf5088 LP |
4040 | /* The journal is fully and entirely up? If so, let's permit logging to it, if that's configured. If the |
4041 | * journal is down, don't ever log to it, otherwise we might end up deadlocking ourselves as we might trigger | |
4042 | * an activation ourselves we can't fulfill. */ | |
4043 | log_set_prohibit_ipc(!manager_journal_is_running(m)); | |
cc2b9e6b | 4044 | log_open(); |
f1dd0c3f LP |
4045 | } |
4046 | ||
d450b6f2 | 4047 | void manager_set_show_status(Manager *m, ShowStatus mode) { |
27d340c7 | 4048 | assert(m); |
d450b6f2 | 4049 | assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY)); |
27d340c7 | 4050 | |
463d0d15 | 4051 | if (!MANAGER_IS_SYSTEM(m)) |
27d340c7 LP |
4052 | return; |
4053 | ||
76b6f3f6 ZJS |
4054 | if (m->show_status != mode) |
4055 | log_debug("%s showing of status.", | |
4056 | mode == SHOW_STATUS_NO ? "Disabling" : "Enabling"); | |
d450b6f2 | 4057 | m->show_status = mode; |
27d340c7 | 4058 | |
7a293242 | 4059 | if (IN_SET(mode, SHOW_STATUS_TEMPORARY, SHOW_STATUS_YES)) |
ac5b0c13 | 4060 | (void) touch("/run/systemd/show-status"); |
27d340c7 | 4061 | else |
ac5b0c13 | 4062 | (void) unlink("/run/systemd/show-status"); |
27d340c7 LP |
4063 | } |
4064 | ||
127d5fd1 | 4065 | static bool manager_get_show_status(Manager *m, StatusType type) { |
27d340c7 LP |
4066 | assert(m); |
4067 | ||
463d0d15 | 4068 | if (!MANAGER_IS_SYSTEM(m)) |
27d340c7 LP |
4069 | return false; |
4070 | ||
31a7eb86 ZJS |
4071 | if (m->no_console_output) |
4072 | return false; | |
4073 | ||
d81afec1 | 4074 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
08510627 LP |
4075 | return false; |
4076 | ||
e46b13c8 | 4077 | /* If we cannot find out the status properly, just proceed. */ |
ebc5788e | 4078 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) |
e46b13c8 ZJS |
4079 | return false; |
4080 | ||
7a293242 | 4081 | return IN_SET(m->show_status, SHOW_STATUS_TEMPORARY, SHOW_STATUS_YES); |
27d340c7 | 4082 | } |
68b29a9f | 4083 | |
7d5ceb64 FB |
4084 | const char *manager_get_confirm_spawn(Manager *m) { |
4085 | static int last_errno = 0; | |
7d5ceb64 FB |
4086 | struct stat st; |
4087 | int r; | |
4088 | ||
ea758432 LP |
4089 | assert(m); |
4090 | ||
7d5ceb64 FB |
4091 | /* Here's the deal: we want to test the validity of the console but don't want |
4092 | * PID1 to go through the whole console process which might block. But we also | |
4093 | * want to warn the user only once if something is wrong with the console so we | |
4094 | * cannot do the sanity checks after spawning our children. So here we simply do | |
4095 | * really basic tests to hopefully trap common errors. | |
4096 | * | |
4097 | * If the console suddenly disappear at the time our children will really it | |
4098 | * then they will simply fail to acquire it and a positive answer will be | |
4099 | * assumed. New children will fallback to /dev/console though. | |
4100 | * | |
4101 | * Note: TTYs are devices that can come and go any time, and frequently aren't | |
4102 | * available yet during early boot (consider a USB rs232 dongle...). If for any | |
4103 | * reason the configured console is not ready, we fallback to the default | |
4104 | * console. */ | |
4105 | ||
ea758432 LP |
4106 | if (!m->confirm_spawn || path_equal(m->confirm_spawn, "/dev/console")) |
4107 | return m->confirm_spawn; | |
7d5ceb64 | 4108 | |
ea758432 LP |
4109 | if (stat(m->confirm_spawn, &st) < 0) { |
4110 | r = -errno; | |
7d5ceb64 | 4111 | goto fail; |
ea758432 | 4112 | } |
7d5ceb64 FB |
4113 | |
4114 | if (!S_ISCHR(st.st_mode)) { | |
ea758432 | 4115 | r = -ENOTTY; |
7d5ceb64 FB |
4116 | goto fail; |
4117 | } | |
4118 | ||
4119 | last_errno = 0; | |
ea758432 LP |
4120 | return m->confirm_spawn; |
4121 | ||
7d5ceb64 | 4122 | fail: |
ea758432 LP |
4123 | if (last_errno != r) |
4124 | last_errno = log_warning_errno(r, "Failed to open %s, using default console: %m", m->confirm_spawn); | |
4125 | ||
7d5ceb64 FB |
4126 | return "/dev/console"; |
4127 | } | |
4128 | ||
e2680723 LP |
4129 | void manager_set_first_boot(Manager *m, bool b) { |
4130 | assert(m); | |
4131 | ||
463d0d15 | 4132 | if (!MANAGER_IS_SYSTEM(m)) |
e2680723 LP |
4133 | return; |
4134 | ||
ae2a2c53 LP |
4135 | if (m->first_boot != (int) b) { |
4136 | if (b) | |
4137 | (void) touch("/run/systemd/first-boot"); | |
4138 | else | |
4139 | (void) unlink("/run/systemd/first-boot"); | |
4140 | } | |
e2680723 | 4141 | |
ae2a2c53 | 4142 | m->first_boot = b; |
e2680723 LP |
4143 | } |
4144 | ||
b0eb2944 FB |
4145 | void manager_disable_confirm_spawn(void) { |
4146 | (void) touch("/run/systemd/confirm_spawn_disabled"); | |
4147 | } | |
4148 | ||
4149 | bool manager_is_confirm_spawn_disabled(Manager *m) { | |
4150 | if (!m->confirm_spawn) | |
4151 | return true; | |
4152 | ||
4153 | return access("/run/systemd/confirm_spawn_disabled", F_OK) >= 0; | |
4154 | } | |
4155 | ||
127d5fd1 | 4156 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { |
25cee550 MS |
4157 | va_list ap; |
4158 | ||
cb6531be ZJS |
4159 | /* If m is NULL, assume we're after shutdown and let the messages through. */ |
4160 | ||
4161 | if (m && !manager_get_show_status(m, type)) | |
25cee550 MS |
4162 | return; |
4163 | ||
03b717a3 MS |
4164 | /* XXX We should totally drop the check for ephemeral here |
4165 | * and thus effectively make 'Type=idle' pointless. */ | |
cb6531be | 4166 | if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0) |
03b717a3 MS |
4167 | return; |
4168 | ||
25cee550 | 4169 | va_start(ap, format); |
a885727a | 4170 | status_vprintf(status, SHOW_STATUS_ELLIPSIZE|(type == STATUS_TYPE_EPHEMERAL ? SHOW_STATUS_EPHEMERAL : 0), format, ap); |
25cee550 MS |
4171 | va_end(ap); |
4172 | } | |
4173 | ||
a57f7e2c LP |
4174 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { |
4175 | char p[strlen(path)+1]; | |
4176 | ||
4177 | assert(m); | |
4178 | assert(path); | |
4179 | ||
4180 | strcpy(p, path); | |
858d36c1 | 4181 | path_simplify(p, false); |
a57f7e2c LP |
4182 | |
4183 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
4184 | } | |
e66cf1a3 | 4185 | |
5269eb6b | 4186 | int manager_update_failed_units(Manager *m, Unit *u, bool failed) { |
03455c28 | 4187 | unsigned size; |
5269eb6b | 4188 | int r; |
03455c28 LDM |
4189 | |
4190 | assert(m); | |
4191 | assert(u->manager == m); | |
4192 | ||
4193 | size = set_size(m->failed_units); | |
4194 | ||
9fff8981 | 4195 | if (failed) { |
5269eb6b LP |
4196 | r = set_ensure_allocated(&m->failed_units, NULL); |
4197 | if (r < 0) | |
4198 | return log_oom(); | |
4199 | ||
9fff8981 | 4200 | if (set_put(m->failed_units, u) < 0) |
5269eb6b | 4201 | return log_oom(); |
9fff8981 | 4202 | } else |
5269eb6b | 4203 | (void) set_remove(m->failed_units, u); |
03455c28 LDM |
4204 | |
4205 | if (set_size(m->failed_units) != size) | |
4206 | bus_manager_send_change_signal(m); | |
5269eb6b LP |
4207 | |
4208 | return 0; | |
03455c28 LDM |
4209 | } |
4210 | ||
f755e3b7 LP |
4211 | ManagerState manager_state(Manager *m) { |
4212 | Unit *u; | |
4213 | ||
4214 | assert(m); | |
4215 | ||
4216 | /* Did we ever finish booting? If not then we are still starting up */ | |
49d5666c | 4217 | if (!MANAGER_IS_FINISHED(m)) { |
d81afec1 LP |
4218 | |
4219 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
4220 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
4221 | return MANAGER_INITIALIZING; | |
4222 | ||
f755e3b7 | 4223 | return MANAGER_STARTING; |
d81afec1 | 4224 | } |
f755e3b7 | 4225 | |
e68537f0 | 4226 | /* Is the special shutdown target active or queued? If so, we are in shutdown state */ |
f755e3b7 | 4227 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); |
706424c2 | 4228 | if (u && unit_active_or_pending(u)) |
f755e3b7 LP |
4229 | return MANAGER_STOPPING; |
4230 | ||
45a7b16b LP |
4231 | if (MANAGER_IS_SYSTEM(m)) { |
4232 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
4233 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
4234 | if (u && unit_active_or_pending(u)) | |
4235 | return MANAGER_MAINTENANCE; | |
f755e3b7 | 4236 | |
45a7b16b LP |
4237 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); |
4238 | if (u && unit_active_or_pending(u)) | |
4239 | return MANAGER_MAINTENANCE; | |
4240 | } | |
f755e3b7 LP |
4241 | |
4242 | /* Are there any failed units? If so, we are in degraded mode */ | |
4243 | if (set_size(m->failed_units) > 0) | |
4244 | return MANAGER_DEGRADED; | |
4245 | ||
4246 | return MANAGER_RUNNING; | |
4247 | } | |
4248 | ||
00d9ef85 LP |
4249 | #define DESTROY_IPC_FLAG (UINT32_C(1) << 31) |
4250 | ||
4251 | static void manager_unref_uid_internal( | |
4252 | Manager *m, | |
4253 | Hashmap **uid_refs, | |
4254 | uid_t uid, | |
4255 | bool destroy_now, | |
4256 | int (*_clean_ipc)(uid_t uid)) { | |
4257 | ||
4258 | uint32_t c, n; | |
4259 | ||
4260 | assert(m); | |
4261 | assert(uid_refs); | |
4262 | assert(uid_is_valid(uid)); | |
4263 | assert(_clean_ipc); | |
4264 | ||
4265 | /* A generic implementation, covering both manager_unref_uid() and manager_unref_gid(), under the assumption | |
4266 | * that uid_t and gid_t are actually defined the same way, with the same validity rules. | |
4267 | * | |
4268 | * We store a hashmap where the UID/GID is they key and the value is a 32bit reference counter, whose highest | |
4269 | * bit is used as flag for marking UIDs/GIDs whose IPC objects to remove when the last reference to the UID/GID | |
4270 | * is dropped. The flag is set to on, once at least one reference from a unit where RemoveIPC= is set is added | |
4271 | * on a UID/GID. It is reset when the UID's/GID's reference counter drops to 0 again. */ | |
4272 | ||
4273 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
4274 | assert_cc(UID_INVALID == (uid_t) GID_INVALID); | |
4275 | ||
4276 | if (uid == 0) /* We don't keep track of root, and will never destroy it */ | |
4277 | return; | |
4278 | ||
4279 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4280 | ||
4281 | n = c & ~DESTROY_IPC_FLAG; | |
4282 | assert(n > 0); | |
4283 | n--; | |
4284 | ||
4285 | if (destroy_now && n == 0) { | |
4286 | hashmap_remove(*uid_refs, UID_TO_PTR(uid)); | |
4287 | ||
4288 | if (c & DESTROY_IPC_FLAG) { | |
4289 | log_debug("%s " UID_FMT " is no longer referenced, cleaning up its IPC.", | |
4290 | _clean_ipc == clean_ipc_by_uid ? "UID" : "GID", | |
4291 | uid); | |
4292 | (void) _clean_ipc(uid); | |
4293 | } | |
4294 | } else { | |
4295 | c = n | (c & DESTROY_IPC_FLAG); | |
4296 | assert_se(hashmap_update(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)) >= 0); | |
4297 | } | |
4298 | } | |
4299 | ||
4300 | void manager_unref_uid(Manager *m, uid_t uid, bool destroy_now) { | |
4301 | manager_unref_uid_internal(m, &m->uid_refs, uid, destroy_now, clean_ipc_by_uid); | |
4302 | } | |
4303 | ||
4304 | void manager_unref_gid(Manager *m, gid_t gid, bool destroy_now) { | |
4305 | manager_unref_uid_internal(m, &m->gid_refs, (uid_t) gid, destroy_now, clean_ipc_by_gid); | |
4306 | } | |
4307 | ||
4308 | static int manager_ref_uid_internal( | |
4309 | Manager *m, | |
4310 | Hashmap **uid_refs, | |
4311 | uid_t uid, | |
4312 | bool clean_ipc) { | |
4313 | ||
4314 | uint32_t c, n; | |
4315 | int r; | |
4316 | ||
4317 | assert(m); | |
4318 | assert(uid_refs); | |
4319 | assert(uid_is_valid(uid)); | |
4320 | ||
4321 | /* A generic implementation, covering both manager_ref_uid() and manager_ref_gid(), under the assumption | |
4322 | * that uid_t and gid_t are actually defined the same way, with the same validity rules. */ | |
4323 | ||
4324 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
4325 | assert_cc(UID_INVALID == (uid_t) GID_INVALID); | |
4326 | ||
4327 | if (uid == 0) /* We don't keep track of root, and will never destroy it */ | |
4328 | return 0; | |
4329 | ||
4330 | r = hashmap_ensure_allocated(uid_refs, &trivial_hash_ops); | |
4331 | if (r < 0) | |
4332 | return r; | |
4333 | ||
4334 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4335 | ||
4336 | n = c & ~DESTROY_IPC_FLAG; | |
4337 | n++; | |
4338 | ||
4339 | if (n & DESTROY_IPC_FLAG) /* check for overflow */ | |
4340 | return -EOVERFLOW; | |
4341 | ||
4342 | c = n | (c & DESTROY_IPC_FLAG) | (clean_ipc ? DESTROY_IPC_FLAG : 0); | |
4343 | ||
4344 | return hashmap_replace(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)); | |
4345 | } | |
4346 | ||
4347 | int manager_ref_uid(Manager *m, uid_t uid, bool clean_ipc) { | |
4348 | return manager_ref_uid_internal(m, &m->uid_refs, uid, clean_ipc); | |
4349 | } | |
4350 | ||
4351 | int manager_ref_gid(Manager *m, gid_t gid, bool clean_ipc) { | |
4352 | return manager_ref_uid_internal(m, &m->gid_refs, (uid_t) gid, clean_ipc); | |
4353 | } | |
4354 | ||
4355 | static void manager_vacuum_uid_refs_internal( | |
4356 | Manager *m, | |
4357 | Hashmap **uid_refs, | |
4358 | int (*_clean_ipc)(uid_t uid)) { | |
4359 | ||
4360 | Iterator i; | |
4361 | void *p, *k; | |
4362 | ||
4363 | assert(m); | |
4364 | assert(uid_refs); | |
4365 | assert(_clean_ipc); | |
4366 | ||
4367 | HASHMAP_FOREACH_KEY(p, k, *uid_refs, i) { | |
4368 | uint32_t c, n; | |
4369 | uid_t uid; | |
4370 | ||
4371 | uid = PTR_TO_UID(k); | |
4372 | c = PTR_TO_UINT32(p); | |
4373 | ||
4374 | n = c & ~DESTROY_IPC_FLAG; | |
4375 | if (n > 0) | |
4376 | continue; | |
4377 | ||
4378 | if (c & DESTROY_IPC_FLAG) { | |
4379 | log_debug("Found unreferenced %s " UID_FMT " after reload/reexec. Cleaning up.", | |
4380 | _clean_ipc == clean_ipc_by_uid ? "UID" : "GID", | |
4381 | uid); | |
4382 | (void) _clean_ipc(uid); | |
4383 | } | |
4384 | ||
4385 | assert_se(hashmap_remove(*uid_refs, k) == p); | |
4386 | } | |
4387 | } | |
4388 | ||
4389 | void manager_vacuum_uid_refs(Manager *m) { | |
4390 | manager_vacuum_uid_refs_internal(m, &m->uid_refs, clean_ipc_by_uid); | |
4391 | } | |
4392 | ||
4393 | void manager_vacuum_gid_refs(Manager *m) { | |
4394 | manager_vacuum_uid_refs_internal(m, &m->gid_refs, clean_ipc_by_gid); | |
4395 | } | |
4396 | ||
4397 | static void manager_serialize_uid_refs_internal( | |
4398 | Manager *m, | |
4399 | FILE *f, | |
4400 | Hashmap **uid_refs, | |
4401 | const char *field_name) { | |
4402 | ||
4403 | Iterator i; | |
4404 | void *p, *k; | |
4405 | ||
4406 | assert(m); | |
4407 | assert(f); | |
4408 | assert(uid_refs); | |
4409 | assert(field_name); | |
4410 | ||
4411 | /* Serialize the UID reference table. Or actually, just the IPC destruction flag of it, as the actual counter | |
4412 | * of it is better rebuild after a reload/reexec. */ | |
4413 | ||
4414 | HASHMAP_FOREACH_KEY(p, k, *uid_refs, i) { | |
4415 | uint32_t c; | |
4416 | uid_t uid; | |
4417 | ||
4418 | uid = PTR_TO_UID(k); | |
4419 | c = PTR_TO_UINT32(p); | |
4420 | ||
4421 | if (!(c & DESTROY_IPC_FLAG)) | |
4422 | continue; | |
4423 | ||
d68c645b | 4424 | (void) serialize_item_format(f, field_name, UID_FMT, uid); |
00d9ef85 LP |
4425 | } |
4426 | } | |
4427 | ||
4428 | void manager_serialize_uid_refs(Manager *m, FILE *f) { | |
4429 | manager_serialize_uid_refs_internal(m, f, &m->uid_refs, "destroy-ipc-uid"); | |
4430 | } | |
4431 | ||
4432 | void manager_serialize_gid_refs(Manager *m, FILE *f) { | |
4433 | manager_serialize_uid_refs_internal(m, f, &m->gid_refs, "destroy-ipc-gid"); | |
4434 | } | |
4435 | ||
4436 | static void manager_deserialize_uid_refs_one_internal( | |
4437 | Manager *m, | |
4438 | Hashmap** uid_refs, | |
4439 | const char *value) { | |
4440 | ||
4441 | uid_t uid; | |
4442 | uint32_t c; | |
4443 | int r; | |
4444 | ||
4445 | assert(m); | |
4446 | assert(uid_refs); | |
4447 | assert(value); | |
4448 | ||
4449 | r = parse_uid(value, &uid); | |
4450 | if (r < 0 || uid == 0) { | |
4451 | log_debug("Unable to parse UID reference serialization"); | |
4452 | return; | |
4453 | } | |
4454 | ||
4455 | r = hashmap_ensure_allocated(uid_refs, &trivial_hash_ops); | |
4456 | if (r < 0) { | |
4457 | log_oom(); | |
4458 | return; | |
4459 | } | |
4460 | ||
4461 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4462 | if (c & DESTROY_IPC_FLAG) | |
4463 | return; | |
4464 | ||
4465 | c |= DESTROY_IPC_FLAG; | |
4466 | ||
4467 | r = hashmap_replace(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)); | |
4468 | if (r < 0) { | |
b39cfe21 | 4469 | log_debug_errno(r, "Failed to add UID reference entry: %m"); |
00d9ef85 LP |
4470 | return; |
4471 | } | |
4472 | } | |
4473 | ||
4474 | void manager_deserialize_uid_refs_one(Manager *m, const char *value) { | |
4475 | manager_deserialize_uid_refs_one_internal(m, &m->uid_refs, value); | |
4476 | } | |
4477 | ||
4478 | void manager_deserialize_gid_refs_one(Manager *m, const char *value) { | |
4479 | manager_deserialize_uid_refs_one_internal(m, &m->gid_refs, value); | |
4480 | } | |
4481 | ||
4482 | int manager_dispatch_user_lookup_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { | |
4483 | struct buffer { | |
4484 | uid_t uid; | |
4485 | gid_t gid; | |
4486 | char unit_name[UNIT_NAME_MAX+1]; | |
4487 | } _packed_ buffer; | |
4488 | ||
4489 | Manager *m = userdata; | |
4490 | ssize_t l; | |
4491 | size_t n; | |
4492 | Unit *u; | |
4493 | ||
4494 | assert_se(source); | |
4495 | assert_se(m); | |
4496 | ||
4497 | /* Invoked whenever a child process succeeded resolving its user/group to use and sent us the resulting UID/GID | |
4498 | * in a datagram. We parse the datagram here and pass it off to the unit, so that it can add a reference to the | |
4499 | * UID/GID so that it can destroy the UID/GID's IPC objects when the reference counter drops to 0. */ | |
4500 | ||
4501 | l = recv(fd, &buffer, sizeof(buffer), MSG_DONTWAIT); | |
4502 | if (l < 0) { | |
4c701096 | 4503 | if (IN_SET(errno, EINTR, EAGAIN)) |
00d9ef85 LP |
4504 | return 0; |
4505 | ||
4506 | return log_error_errno(errno, "Failed to read from user lookup fd: %m"); | |
4507 | } | |
4508 | ||
4509 | if ((size_t) l <= offsetof(struct buffer, unit_name)) { | |
4510 | log_warning("Received too short user lookup message, ignoring."); | |
4511 | return 0; | |
4512 | } | |
4513 | ||
4514 | if ((size_t) l > offsetof(struct buffer, unit_name) + UNIT_NAME_MAX) { | |
4515 | log_warning("Received too long user lookup message, ignoring."); | |
4516 | return 0; | |
4517 | } | |
4518 | ||
4519 | if (!uid_is_valid(buffer.uid) && !gid_is_valid(buffer.gid)) { | |
4520 | log_warning("Got user lookup message with invalid UID/GID pair, ignoring."); | |
4521 | return 0; | |
4522 | } | |
4523 | ||
4524 | n = (size_t) l - offsetof(struct buffer, unit_name); | |
4525 | if (memchr(buffer.unit_name, 0, n)) { | |
4526 | log_warning("Received lookup message with embedded NUL character, ignoring."); | |
4527 | return 0; | |
4528 | } | |
4529 | ||
4530 | buffer.unit_name[n] = 0; | |
4531 | u = manager_get_unit(m, buffer.unit_name); | |
4532 | if (!u) { | |
4533 | log_debug("Got user lookup message but unit doesn't exist, ignoring."); | |
4534 | return 0; | |
4535 | } | |
4536 | ||
4537 | log_unit_debug(u, "User lookup succeeded: uid=" UID_FMT " gid=" GID_FMT, buffer.uid, buffer.gid); | |
4538 | ||
4539 | unit_notify_user_lookup(u, buffer.uid, buffer.gid); | |
4540 | return 0; | |
4541 | } | |
4542 | ||
af6b0ecc | 4543 | char *manager_taint_string(Manager *m) { |
90d7464d | 4544 | _cleanup_free_ char *destination = NULL, *overflowuid = NULL, *overflowgid = NULL; |
af6b0ecc LP |
4545 | char *buf, *e; |
4546 | int r; | |
4547 | ||
198ce932 ZJS |
4548 | /* Returns a "taint string", e.g. "local-hwclock:var-run-bad". |
4549 | * Only things that are detected at runtime should be tagged | |
4550 | * here. For stuff that is set during compilation, emit a warning | |
4551 | * in the configuration phase. */ | |
4552 | ||
af6b0ecc LP |
4553 | assert(m); |
4554 | ||
4555 | buf = new(char, sizeof("split-usr:" | |
4556 | "cgroups-missing:" | |
4557 | "local-hwclock:" | |
4558 | "var-run-bad:" | |
90d7464d LP |
4559 | "overflowuid-not-65534:" |
4560 | "overflowgid-not-65534:")); | |
af6b0ecc LP |
4561 | if (!buf) |
4562 | return NULL; | |
4563 | ||
4564 | e = buf; | |
0fd402b0 | 4565 | buf[0] = 0; |
af6b0ecc LP |
4566 | |
4567 | if (m->taint_usr) | |
4568 | e = stpcpy(e, "split-usr:"); | |
4569 | ||
4570 | if (access("/proc/cgroups", F_OK) < 0) | |
4571 | e = stpcpy(e, "cgroups-missing:"); | |
4572 | ||
4573 | if (clock_is_localtime(NULL) > 0) | |
4574 | e = stpcpy(e, "local-hwclock:"); | |
4575 | ||
4576 | r = readlink_malloc("/var/run", &destination); | |
4577 | if (r < 0 || !PATH_IN_SET(destination, "../run", "/run")) | |
4578 | e = stpcpy(e, "var-run-bad:"); | |
4579 | ||
90d7464d LP |
4580 | r = read_one_line_file("/proc/sys/kernel/overflowuid", &overflowuid); |
4581 | if (r >= 0 && !streq(overflowuid, "65534")) | |
4582 | e = stpcpy(e, "overflowuid-not-65534:"); | |
4583 | ||
4584 | r = read_one_line_file("/proc/sys/kernel/overflowgid", &overflowgid); | |
4585 | if (r >= 0 && !streq(overflowgid, "65534")) | |
4586 | e = stpcpy(e, "overflowgid-not-65534:"); | |
4587 | ||
af6b0ecc LP |
4588 | /* remove the last ':' */ |
4589 | if (e != buf) | |
4590 | e[-1] = 0; | |
4591 | ||
4592 | return buf; | |
4593 | } | |
4594 | ||
adefcf28 LP |
4595 | void manager_ref_console(Manager *m) { |
4596 | assert(m); | |
4597 | ||
4598 | m->n_on_console++; | |
4599 | } | |
4600 | ||
4601 | void manager_unref_console(Manager *m) { | |
4602 | ||
4603 | assert(m->n_on_console > 0); | |
4604 | m->n_on_console--; | |
4605 | ||
4606 | if (m->n_on_console == 0) | |
4607 | m->no_console_output = false; /* unset no_console_output flag, since the console is definitely free now */ | |
4608 | } | |
4609 | ||
a6ecbf83 FB |
4610 | void manager_override_log_level(Manager *m, int level) { |
4611 | _cleanup_free_ char *s = NULL; | |
4612 | assert(m); | |
4613 | ||
4614 | if (!m->log_level_overridden) { | |
4615 | m->original_log_level = log_get_max_level(); | |
4616 | m->log_level_overridden = true; | |
4617 | } | |
4618 | ||
4619 | (void) log_level_to_string_alloc(level, &s); | |
4620 | log_info("Setting log level to %s.", strna(s)); | |
4621 | ||
4622 | log_set_max_level(level); | |
4623 | } | |
4624 | ||
4625 | void manager_restore_original_log_level(Manager *m) { | |
4626 | _cleanup_free_ char *s = NULL; | |
4627 | assert(m); | |
4628 | ||
4629 | if (!m->log_level_overridden) | |
4630 | return; | |
4631 | ||
4632 | (void) log_level_to_string_alloc(m->original_log_level, &s); | |
4633 | log_info("Restoring log level to original (%s).", strna(s)); | |
4634 | ||
4635 | log_set_max_level(m->original_log_level); | |
4636 | m->log_level_overridden = false; | |
4637 | } | |
4638 | ||
bda7d78b FB |
4639 | void manager_override_log_target(Manager *m, LogTarget target) { |
4640 | assert(m); | |
4641 | ||
4642 | if (!m->log_target_overridden) { | |
4643 | m->original_log_target = log_get_target(); | |
4644 | m->log_target_overridden = true; | |
4645 | } | |
4646 | ||
4647 | log_info("Setting log target to %s.", log_target_to_string(target)); | |
4648 | log_set_target(target); | |
4649 | } | |
4650 | ||
4651 | void manager_restore_original_log_target(Manager *m) { | |
4652 | assert(m); | |
4653 | ||
4654 | if (!m->log_target_overridden) | |
4655 | return; | |
4656 | ||
4657 | log_info("Restoring log target to original %s.", log_target_to_string(m->original_log_target)); | |
4658 | ||
4659 | log_set_target(m->original_log_target); | |
4660 | m->log_target_overridden = false; | |
4661 | } | |
4662 | ||
d4ee7bd8 YW |
4663 | ManagerTimestamp manager_timestamp_initrd_mangle(ManagerTimestamp s) { |
4664 | if (in_initrd() && | |
4665 | s >= MANAGER_TIMESTAMP_SECURITY_START && | |
4666 | s <= MANAGER_TIMESTAMP_UNITS_LOAD_FINISH) | |
4667 | return s - MANAGER_TIMESTAMP_SECURITY_START + MANAGER_TIMESTAMP_INITRD_SECURITY_START; | |
4668 | return s; | |
4669 | } | |
4670 | ||
f755e3b7 | 4671 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { |
d81afec1 | 4672 | [MANAGER_INITIALIZING] = "initializing", |
f755e3b7 LP |
4673 | [MANAGER_STARTING] = "starting", |
4674 | [MANAGER_RUNNING] = "running", | |
4675 | [MANAGER_DEGRADED] = "degraded", | |
4676 | [MANAGER_MAINTENANCE] = "maintenance", | |
4677 | [MANAGER_STOPPING] = "stopping", | |
4678 | }; | |
4679 | ||
4680 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); | |
9f9f0342 LP |
4681 | |
4682 | static const char *const manager_timestamp_table[_MANAGER_TIMESTAMP_MAX] = { | |
4683 | [MANAGER_TIMESTAMP_FIRMWARE] = "firmware", | |
4684 | [MANAGER_TIMESTAMP_LOADER] = "loader", | |
4685 | [MANAGER_TIMESTAMP_KERNEL] = "kernel", | |
4686 | [MANAGER_TIMESTAMP_INITRD] = "initrd", | |
4687 | [MANAGER_TIMESTAMP_USERSPACE] = "userspace", | |
4688 | [MANAGER_TIMESTAMP_FINISH] = "finish", | |
4689 | [MANAGER_TIMESTAMP_SECURITY_START] = "security-start", | |
4690 | [MANAGER_TIMESTAMP_SECURITY_FINISH] = "security-finish", | |
4691 | [MANAGER_TIMESTAMP_GENERATORS_START] = "generators-start", | |
4692 | [MANAGER_TIMESTAMP_GENERATORS_FINISH] = "generators-finish", | |
4693 | [MANAGER_TIMESTAMP_UNITS_LOAD_START] = "units-load-start", | |
4694 | [MANAGER_TIMESTAMP_UNITS_LOAD_FINISH] = "units-load-finish", | |
d4ee7bd8 YW |
4695 | [MANAGER_TIMESTAMP_INITRD_SECURITY_START] = "initrd-security-start", |
4696 | [MANAGER_TIMESTAMP_INITRD_SECURITY_FINISH] = "initrd-security-finish", | |
4697 | [MANAGER_TIMESTAMP_INITRD_GENERATORS_START] = "initrd-generators-start", | |
4698 | [MANAGER_TIMESTAMP_INITRD_GENERATORS_FINISH] = "initrd-generators-finish", | |
4699 | [MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_START] = "initrd-units-load-start", | |
4700 | [MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_FINISH] = "initrd-units-load-finish", | |
9f9f0342 LP |
4701 | }; |
4702 | ||
4703 | DEFINE_STRING_TABLE_LOOKUP(manager_timestamp, ManagerTimestamp); | |
afcfaa69 LP |
4704 | |
4705 | static const char* const oom_policy_table[_OOM_POLICY_MAX] = { | |
4706 | [OOM_CONTINUE] = "continue", | |
4707 | [OOM_STOP] = "stop", | |
4708 | [OOM_KILL] = "kill", | |
4709 | }; | |
4710 | ||
4711 | DEFINE_STRING_TABLE_LOOKUP(oom_policy, OOMPolicy); |