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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> | |
e46b13c8 | 6 | #include <sys/epoll.h> |
400f1a33 | 7 | #include <sys/inotify.h> |
e1414003 | 8 | #include <sys/ioctl.h> |
400f1a33 | 9 | #include <sys/reboot.h> |
8742514c | 10 | #include <sys/timerfd.h> |
400f1a33 LP |
11 | #include <sys/wait.h> |
12 | #include <unistd.h> | |
830f6caa | 13 | |
349cc4a5 | 14 | #if HAVE_AUDIT |
4927fcae | 15 | #include <libaudit.h> |
830f6caa | 16 | #endif |
60918275 | 17 | |
718db961 | 18 | #include "sd-daemon.h" |
718db961 | 19 | #include "sd-messages.h" |
3536f49e | 20 | #include "sd-path.h" |
81527be1 | 21 | |
57b7a260 | 22 | #include "all-units.h" |
d68c645b | 23 | #include "alloc-util.h" |
400f1a33 LP |
24 | #include "audit-fd.h" |
25 | #include "boot-timestamps.h" | |
26 | #include "bus-common-errors.h" | |
27 | #include "bus-error.h" | |
28 | #include "bus-kernel.h" | |
29 | #include "bus-util.h" | |
00d9ef85 | 30 | #include "clean-ipc.h" |
af6b0ecc | 31 | #include "clock-util.h" |
19d22d43 | 32 | #include "core-varlink.h" |
400f1a33 LP |
33 | #include "dbus-job.h" |
34 | #include "dbus-manager.h" | |
35 | #include "dbus-unit.h" | |
36 | #include "dbus.h" | |
0e7f5ad9 | 37 | #include "def.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" |
385093b7 | 47 | #include "generator-setup.h" |
60918275 | 48 | #include "hashmap.h" |
5cfa33e0 | 49 | #include "install.h" |
19d22d43 | 50 | #include "io-util.h" |
d3070fbd | 51 | #include "label.h" |
400f1a33 | 52 | #include "locale-setup.h" |
16354eff | 53 | #include "log.h" |
400f1a33 | 54 | #include "macro.h" |
3ffd4af2 | 55 | #include "manager.h" |
0a970718 | 56 | #include "memory-util.h" |
49e942b2 | 57 | #include "mkdir.h" |
6bedfcbb | 58 | #include "parse-util.h" |
400f1a33 LP |
59 | #include "path-lookup.h" |
60 | #include "path-util.h" | |
61 | #include "process-util.h" | |
ea430986 | 62 | #include "ratelimit.h" |
31ce987c | 63 | #include "rlimit-util.h" |
c6878637 | 64 | #include "rm-rf.h" |
d68c645b | 65 | #include "serialize.h" |
400f1a33 | 66 | #include "signal-util.h" |
57b7a260 | 67 | #include "socket-util.h" |
514f4ef5 | 68 | #include "special.h" |
8fcde012 | 69 | #include "stat-util.h" |
8b43440b | 70 | #include "string-table.h" |
07630cea | 71 | #include "string-util.h" |
400f1a33 | 72 | #include "strv.h" |
dd1db3c2 | 73 | #include "strxcpyx.h" |
6123dfaa | 74 | #include "sysctl-util.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 */ |
1b4154a8 ZJS |
89 | #define JOBS_IN_PROGRESS_WAIT_USEC (2*USEC_PER_SEC) |
90 | #define JOBS_IN_PROGRESS_QUIET_WAIT_USEC (25*USEC_PER_SEC) | |
fd08a840 | 91 | #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) |
03b717a3 MS |
92 | #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 |
93 | ||
5238e957 | 94 | /* 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 |
95 | * the queue gets more empty. */ |
96 | #define MANAGER_BUS_BUSY_THRESHOLD 1024LU | |
97 | ||
98 | /* How many units and jobs to process of the bus queue before returning to the event loop. */ | |
99 | #define MANAGER_BUS_MESSAGE_BUDGET 100U | |
100 | ||
718db961 | 101 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
d8fdc620 | 102 | static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
718db961 LP |
103 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
104 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
105 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
00d9ef85 | 106 | static int manager_dispatch_user_lookup_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
718db961 | 107 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata); |
752b5905 | 108 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata); |
575b300b | 109 | static int manager_dispatch_sigchld(sd_event_source *source, void *userdata); |
bbf5fd8e | 110 | static int manager_dispatch_timezone_change(sd_event_source *source, const struct inotify_event *event, void *userdata); |
64691d20 | 111 | static int manager_run_environment_generators(Manager *m); |
e801700e | 112 | static int manager_run_generators(Manager *m); |
718db961 | 113 | |
1b4154a8 ZJS |
114 | static usec_t manager_watch_jobs_next_time(Manager *m) { |
115 | return usec_add(now(CLOCK_MONOTONIC), | |
116 | show_status_on(m->show_status) ? JOBS_IN_PROGRESS_WAIT_USEC : | |
117 | JOBS_IN_PROGRESS_QUIET_WAIT_USEC); | |
118 | } | |
119 | ||
2ae56591 | 120 | static void manager_watch_jobs_in_progress(Manager *m) { |
e5723c89 | 121 | usec_t next; |
cfa9677b | 122 | int r; |
e5723c89 | 123 | |
718db961 | 124 | assert(m); |
03b717a3 | 125 | |
42bf1ae1 FB |
126 | /* We do not want to show the cylon animation if the user |
127 | * needs to confirm service executions otherwise confirmation | |
128 | * messages will be screwed by the cylon animation. */ | |
b0eb2944 | 129 | if (!manager_is_confirm_spawn_disabled(m)) |
42bf1ae1 FB |
130 | return; |
131 | ||
718db961 | 132 | if (m->jobs_in_progress_event_source) |
2ae56591 | 133 | return; |
03b717a3 | 134 | |
1b4154a8 | 135 | next = manager_watch_jobs_next_time(m); |
cfa9677b | 136 | r = sd_event_add_time( |
6a0f1f6d LP |
137 | m->event, |
138 | &m->jobs_in_progress_event_source, | |
139 | CLOCK_MONOTONIC, | |
140 | next, 0, | |
141 | manager_dispatch_jobs_in_progress, m); | |
cfa9677b MM |
142 | if (r < 0) |
143 | return; | |
7dfbe2e3 TG |
144 | |
145 | (void) sd_event_source_set_description(m->jobs_in_progress_event_source, "manager-jobs-in-progress"); | |
03b717a3 MS |
146 | } |
147 | ||
fbd0b64f | 148 | #define CYLON_BUFFER_EXTRA (2*STRLEN(ANSI_RED) + STRLEN(ANSI_HIGHLIGHT_RED) + 2*STRLEN(ANSI_NORMAL)) |
03b717a3 | 149 | |
03b717a3 MS |
150 | static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) { |
151 | char *p = buffer; | |
152 | ||
153 | assert(buflen >= CYLON_BUFFER_EXTRA + width + 1); | |
154 | assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */ | |
155 | ||
156 | if (pos > 1) { | |
6282c859 MS |
157 | if (pos > 2) |
158 | p = mempset(p, ' ', pos-2); | |
64c3610b FB |
159 | if (log_get_show_color()) |
160 | p = stpcpy(p, ANSI_RED); | |
03b717a3 MS |
161 | *p++ = '*'; |
162 | } | |
163 | ||
164 | if (pos > 0 && pos <= width) { | |
64c3610b FB |
165 | if (log_get_show_color()) |
166 | p = stpcpy(p, ANSI_HIGHLIGHT_RED); | |
03b717a3 MS |
167 | *p++ = '*'; |
168 | } | |
169 | ||
64c3610b FB |
170 | if (log_get_show_color()) |
171 | p = stpcpy(p, ANSI_NORMAL); | |
03b717a3 MS |
172 | |
173 | if (pos < width) { | |
64c3610b FB |
174 | if (log_get_show_color()) |
175 | p = stpcpy(p, ANSI_RED); | |
03b717a3 | 176 | *p++ = '*'; |
6282c859 MS |
177 | if (pos < width-1) |
178 | p = mempset(p, ' ', width-1-pos); | |
64c3610b FB |
179 | if (log_get_show_color()) |
180 | strcpy(p, ANSI_NORMAL); | |
03b717a3 | 181 | } |
03b717a3 MS |
182 | } |
183 | ||
7365a296 | 184 | void manager_flip_auto_status(Manager *m, bool enable, const char *reason) { |
f755e3b7 LP |
185 | assert(m); |
186 | ||
cb8ccb22 ZJS |
187 | if (enable) { |
188 | if (m->show_status == SHOW_STATUS_AUTO) | |
7365a296 | 189 | manager_set_show_status(m, SHOW_STATUS_TEMPORARY, reason); |
cb8ccb22 ZJS |
190 | } else { |
191 | if (m->show_status == SHOW_STATUS_TEMPORARY) | |
7365a296 | 192 | manager_set_show_status(m, SHOW_STATUS_AUTO, reason); |
cb8ccb22 ZJS |
193 | } |
194 | } | |
195 | ||
03b717a3 | 196 | static void manager_print_jobs_in_progress(Manager *m) { |
718db961 | 197 | _cleanup_free_ char *job_of_n = NULL; |
03b717a3 MS |
198 | Iterator i; |
199 | Job *j; | |
03b717a3 MS |
200 | unsigned counter = 0, print_nr; |
201 | char cylon[6 + CYLON_BUFFER_EXTRA + 1]; | |
202 | unsigned cylon_pos; | |
8bb310c3 ZJS |
203 | char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit"; |
204 | uint64_t x; | |
03b717a3 | 205 | |
718db961 | 206 | assert(m); |
9c3349e2 | 207 | assert(m->n_running_jobs > 0); |
718db961 | 208 | |
7365a296 | 209 | manager_flip_auto_status(m, true, "delay"); |
d450b6f2 | 210 | |
03b717a3 MS |
211 | print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs; |
212 | ||
213 | HASHMAP_FOREACH(j, m->jobs, i) | |
214 | if (j->state == JOB_RUNNING && counter++ == print_nr) | |
215 | break; | |
216 | ||
e970a72e MS |
217 | /* m->n_running_jobs must be consistent with the contents of m->jobs, |
218 | * so the above loop must have succeeded in finding j. */ | |
219 | assert(counter == print_nr + 1); | |
51d122af | 220 | assert(j); |
5a82a91a | 221 | |
03b717a3 MS |
222 | cylon_pos = m->jobs_in_progress_iteration % 14; |
223 | if (cylon_pos >= 8) | |
224 | cylon_pos = 14 - cylon_pos; | |
225 | draw_cylon(cylon, sizeof(cylon), 6, cylon_pos); | |
226 | ||
8bb310c3 ZJS |
227 | m->jobs_in_progress_iteration++; |
228 | ||
d6483ba7 ZJS |
229 | if (m->n_running_jobs > 1) { |
230 | if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0) | |
231 | job_of_n = NULL; | |
232 | } | |
03b717a3 | 233 | |
8bb310c3 ZJS |
234 | format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC); |
235 | if (job_get_timeout(j, &x) > 0) | |
236 | format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC); | |
237 | ||
127d5fd1 | 238 | manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon, |
8bb310c3 ZJS |
239 | "%sA %s job is running for %s (%s / %s)", |
240 | strempty(job_of_n), | |
241 | job_type_to_string(j->type), | |
2a8f53c6 | 242 | unit_status_string(j->unit), |
8bb310c3 | 243 | time, limit); |
03b717a3 MS |
244 | } |
245 | ||
e46b13c8 ZJS |
246 | static int have_ask_password(void) { |
247 | _cleanup_closedir_ DIR *dir; | |
8fb3f009 | 248 | struct dirent *de; |
e46b13c8 ZJS |
249 | |
250 | dir = opendir("/run/systemd/ask-password"); | |
251 | if (!dir) { | |
252 | if (errno == ENOENT) | |
253 | return false; | |
254 | else | |
255 | return -errno; | |
256 | } | |
257 | ||
8fb3f009 | 258 | FOREACH_DIRENT_ALL(de, dir, return -errno) { |
e46b13c8 ZJS |
259 | if (startswith(de->d_name, "ask.")) |
260 | return true; | |
261 | } | |
8fb3f009 | 262 | return false; |
e46b13c8 ZJS |
263 | } |
264 | ||
265 | static int manager_dispatch_ask_password_fd(sd_event_source *source, | |
266 | int fd, uint32_t revents, void *userdata) { | |
267 | Manager *m = userdata; | |
268 | ||
269 | assert(m); | |
270 | ||
665dfe93 | 271 | (void) flush_fd(fd); |
e46b13c8 ZJS |
272 | |
273 | m->have_ask_password = have_ask_password(); | |
274 | if (m->have_ask_password < 0) | |
275 | /* Log error but continue. Negative have_ask_password | |
276 | * is treated as unknown status. */ | |
c33b3297 | 277 | log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m"); |
e46b13c8 ZJS |
278 | |
279 | return 0; | |
280 | } | |
281 | ||
282 | static void manager_close_ask_password(Manager *m) { | |
283 | assert(m); | |
284 | ||
e46b13c8 | 285 | m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source); |
90990e28 | 286 | m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd); |
e46b13c8 ZJS |
287 | m->have_ask_password = -EINVAL; |
288 | } | |
289 | ||
290 | static int manager_check_ask_password(Manager *m) { | |
291 | int r; | |
292 | ||
293 | assert(m); | |
294 | ||
295 | if (!m->ask_password_event_source) { | |
296 | assert(m->ask_password_inotify_fd < 0); | |
297 | ||
17e4b070 | 298 | (void) mkdir_p_label("/run/systemd/ask-password", 0755); |
e46b13c8 ZJS |
299 | |
300 | m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
4a62c710 | 301 | if (m->ask_password_inotify_fd < 0) |
330b8fb3 | 302 | return log_error_errno(errno, "Failed to create inotify object: %m"); |
e46b13c8 | 303 | |
27c3112d FB |
304 | r = inotify_add_watch_and_warn(m->ask_password_inotify_fd, |
305 | "/run/systemd/ask-password", | |
306 | IN_CREATE|IN_DELETE|IN_MOVE); | |
307 | if (r < 0) { | |
e46b13c8 | 308 | manager_close_ask_password(m); |
27c3112d | 309 | return r; |
e46b13c8 ZJS |
310 | } |
311 | ||
312 | r = sd_event_add_io(m->event, &m->ask_password_event_source, | |
313 | m->ask_password_inotify_fd, EPOLLIN, | |
314 | manager_dispatch_ask_password_fd, m); | |
315 | if (r < 0) { | |
df3d3bdf | 316 | log_error_errno(r, "Failed to add event source for /run/systemd/ask-password: %m"); |
e46b13c8 | 317 | manager_close_ask_password(m); |
df3d3bdf | 318 | return r; |
e46b13c8 ZJS |
319 | } |
320 | ||
7dfbe2e3 TG |
321 | (void) sd_event_source_set_description(m->ask_password_event_source, "manager-ask-password"); |
322 | ||
e46b13c8 ZJS |
323 | /* Queries might have been added meanwhile... */ |
324 | manager_dispatch_ask_password_fd(m->ask_password_event_source, | |
325 | m->ask_password_inotify_fd, EPOLLIN, m); | |
326 | } | |
327 | ||
328 | return m->have_ask_password; | |
329 | } | |
330 | ||
31a7eb86 | 331 | static int manager_watch_idle_pipe(Manager *m) { |
31a7eb86 ZJS |
332 | int r; |
333 | ||
718db961 LP |
334 | assert(m); |
335 | ||
336 | if (m->idle_pipe_event_source) | |
31a7eb86 ZJS |
337 | return 0; |
338 | ||
339 | if (m->idle_pipe[2] < 0) | |
340 | return 0; | |
341 | ||
151b9b96 | 342 | 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 |
343 | if (r < 0) |
344 | return log_error_errno(r, "Failed to watch idle pipe: %m"); | |
31a7eb86 | 345 | |
7dfbe2e3 TG |
346 | (void) sd_event_source_set_description(m->idle_pipe_event_source, "manager-idle-pipe"); |
347 | ||
31a7eb86 | 348 | return 0; |
31a7eb86 ZJS |
349 | } |
350 | ||
718db961 LP |
351 | static void manager_close_idle_pipe(Manager *m) { |
352 | assert(m); | |
31a7eb86 | 353 | |
cd72bd8a LP |
354 | m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source); |
355 | ||
3d94f76c LP |
356 | safe_close_pair(m->idle_pipe); |
357 | safe_close_pair(m->idle_pipe + 2); | |
31a7eb86 ZJS |
358 | } |
359 | ||
8742514c | 360 | static int manager_setup_time_change(Manager *m) { |
718db961 | 361 | int r; |
b92bea5d | 362 | |
718db961 | 363 | assert(m); |
8742514c | 364 | |
638cece4 | 365 | if (MANAGER_IS_TEST_RUN(m)) |
0d8c31ff ZJS |
366 | return 0; |
367 | ||
7feedd18 LP |
368 | m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); |
369 | m->time_change_fd = safe_close(m->time_change_fd); | |
370 | ||
4f811d27 | 371 | m->time_change_fd = time_change_fd(); |
4a62c710 | 372 | if (m->time_change_fd < 0) |
4f811d27 | 373 | return log_error_errno(m->time_change_fd, "Failed to create timer change timer fd: %m"); |
8742514c | 374 | |
151b9b96 | 375 | 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 |
376 | if (r < 0) |
377 | return log_error_errno(r, "Failed to create time change event source: %m"); | |
8742514c | 378 | |
a5cc7e5a LP |
379 | /* Schedule this slightly earlier than the .timer event sources */ |
380 | r = sd_event_source_set_priority(m->time_change_event_source, SD_EVENT_PRIORITY_NORMAL-1); | |
381 | if (r < 0) | |
382 | return log_error_errno(r, "Failed to set priority of time change event sources: %m"); | |
383 | ||
7dfbe2e3 TG |
384 | (void) sd_event_source_set_description(m->time_change_event_source, "manager-time-change"); |
385 | ||
8742514c LP |
386 | log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd."); |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
bbf5fd8e LP |
391 | static int manager_read_timezone_stat(Manager *m) { |
392 | struct stat st; | |
393 | bool changed; | |
394 | ||
395 | assert(m); | |
396 | ||
397 | /* Read the current stat() data of /etc/localtime so that we detect changes */ | |
398 | if (lstat("/etc/localtime", &st) < 0) { | |
399 | log_debug_errno(errno, "Failed to stat /etc/localtime, ignoring: %m"); | |
400 | changed = m->etc_localtime_accessible; | |
401 | m->etc_localtime_accessible = false; | |
402 | } else { | |
403 | usec_t k; | |
404 | ||
405 | k = timespec_load(&st.st_mtim); | |
406 | changed = !m->etc_localtime_accessible || k != m->etc_localtime_mtime; | |
407 | ||
408 | m->etc_localtime_mtime = k; | |
409 | m->etc_localtime_accessible = true; | |
410 | } | |
411 | ||
412 | return changed; | |
413 | } | |
414 | ||
415 | static int manager_setup_timezone_change(Manager *m) { | |
a5cc7e5a | 416 | _cleanup_(sd_event_source_unrefp) sd_event_source *new_event = NULL; |
bbf5fd8e LP |
417 | int r; |
418 | ||
419 | assert(m); | |
420 | ||
638cece4 | 421 | if (MANAGER_IS_TEST_RUN(m)) |
bbf5fd8e LP |
422 | return 0; |
423 | ||
424 | /* We watch /etc/localtime for three events: change of the link count (which might mean removal from /etc even | |
425 | * though another link might be kept), renames, and file close operations after writing. Note we don't bother | |
426 | * with IN_DELETE_SELF, as that would just report when the inode is removed entirely, i.e. after the link count | |
427 | * went to zero and all fds to it are closed. | |
428 | * | |
429 | * Note that we never follow symlinks here. This is a simplification, but should cover almost all cases | |
430 | * correctly. | |
431 | * | |
432 | * Note that we create the new event source first here, before releasing the old one. This should optimize | |
433 | * behaviour as this way sd-event can reuse the old watch in case the inode didn't change. */ | |
434 | ||
435 | r = sd_event_add_inotify(m->event, &new_event, "/etc/localtime", | |
436 | IN_ATTRIB|IN_MOVE_SELF|IN_CLOSE_WRITE|IN_DONT_FOLLOW, manager_dispatch_timezone_change, m); | |
0cb21d8c LP |
437 | if (r == -ENOENT) { |
438 | /* If the file doesn't exist yet, subscribe to /etc instead, and wait until it is created either by | |
439 | * O_CREATE or by rename() */ | |
440 | ||
441 | log_debug_errno(r, "/etc/localtime doesn't exist yet, watching /etc instead."); | |
bbf5fd8e LP |
442 | r = sd_event_add_inotify(m->event, &new_event, "/etc", |
443 | IN_CREATE|IN_MOVED_TO|IN_ONLYDIR, manager_dispatch_timezone_change, m); | |
0cb21d8c | 444 | } |
bbf5fd8e LP |
445 | if (r < 0) |
446 | return log_error_errno(r, "Failed to create timezone change event source: %m"); | |
447 | ||
a5cc7e5a LP |
448 | /* Schedule this slightly earlier than the .timer event sources */ |
449 | r = sd_event_source_set_priority(new_event, SD_EVENT_PRIORITY_NORMAL-1); | |
450 | if (r < 0) | |
451 | return log_error_errno(r, "Failed to set priority of timezone change event sources: %m"); | |
452 | ||
bbf5fd8e | 453 | sd_event_source_unref(m->timezone_change_event_source); |
a5cc7e5a | 454 | m->timezone_change_event_source = TAKE_PTR(new_event); |
bbf5fd8e LP |
455 | |
456 | return 0; | |
457 | } | |
458 | ||
80876c20 | 459 | static int enable_special_signals(Manager *m) { |
718db961 | 460 | _cleanup_close_ int fd = -1; |
80876c20 LP |
461 | |
462 | assert(m); | |
463 | ||
638cece4 | 464 | if (MANAGER_IS_TEST_RUN(m)) |
37453b3a EV |
465 | return 0; |
466 | ||
a41b539e | 467 | /* Enable that we get SIGINT on control-alt-del. In containers |
c9999773 LP |
468 | * this will fail with EPERM (older) or EINVAL (newer), so |
469 | * ignore that. */ | |
4c701096 | 470 | if (reboot(RB_DISABLE_CAD) < 0 && !IN_SET(errno, EPERM, EINVAL)) |
56f64d95 | 471 | log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m"); |
80876c20 | 472 | |
a41b539e LP |
473 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC); |
474 | if (fd < 0) { | |
475 | /* Support systems without virtual console */ | |
476 | if (fd != -ENOENT) | |
56f64d95 | 477 | log_warning_errno(errno, "Failed to open /dev/tty0: %m"); |
a41b539e | 478 | } else { |
80876c20 LP |
479 | /* Enable that we get SIGWINCH on kbrequest */ |
480 | if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0) | |
56f64d95 | 481 | log_warning_errno(errno, "Failed to enable kbrequest handling: %m"); |
80876c20 LP |
482 | } |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
8750ac02 ZJS |
487 | #define RTSIG_IF_AVAILABLE(signum) (signum <= SIGRTMAX ? signum : -1) |
488 | ||
ce578209 | 489 | static int manager_setup_signals(Manager *m) { |
b92bea5d ZJS |
490 | struct sigaction sa = { |
491 | .sa_handler = SIG_DFL, | |
492 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
493 | }; | |
718db961 LP |
494 | sigset_t mask; |
495 | int r; | |
60918275 | 496 | |
ce578209 LP |
497 | assert(m); |
498 | ||
57c0c30e LP |
499 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
500 | ||
4dffec14 LP |
501 | /* We make liberal use of realtime signals here. On |
502 | * Linux/glibc we have 30 of them (with the exception of Linux | |
503 | * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30 | |
504 | * (aka SIGRTMAX). */ | |
7d793605 | 505 | |
4dffec14 | 506 | assert_se(sigemptyset(&mask) == 0); |
7d793605 LP |
507 | sigset_add_many(&mask, |
508 | SIGCHLD, /* Child died */ | |
509 | SIGTERM, /* Reexecute daemon */ | |
510 | SIGHUP, /* Reload configuration */ | |
511 | SIGUSR1, /* systemd/upstart: reconnect to D-Bus */ | |
512 | SIGUSR2, /* systemd: dump status */ | |
513 | SIGINT, /* Kernel sends us this on control-alt-del */ | |
514 | SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */ | |
515 | SIGPWR, /* Some kernel drivers and upsd send us this on power failure */ | |
4dffec14 | 516 | |
7d793605 | 517 | SIGRTMIN+0, /* systemd: start default.target */ |
0003d1ab | 518 | SIGRTMIN+1, /* systemd: isolate rescue.target */ |
7d793605 LP |
519 | SIGRTMIN+2, /* systemd: isolate emergency.target */ |
520 | SIGRTMIN+3, /* systemd: start halt.target */ | |
521 | SIGRTMIN+4, /* systemd: start poweroff.target */ | |
522 | SIGRTMIN+5, /* systemd: start reboot.target */ | |
0003d1ab | 523 | SIGRTMIN+6, /* systemd: start kexec.target */ |
4dffec14 LP |
524 | |
525 | /* ... space for more special targets ... */ | |
526 | ||
0003d1ab LP |
527 | SIGRTMIN+13, /* systemd: Immediate halt */ |
528 | SIGRTMIN+14, /* systemd: Immediate poweroff */ | |
529 | SIGRTMIN+15, /* systemd: Immediate reboot */ | |
530 | SIGRTMIN+16, /* systemd: Immediate kexec */ | |
4dffec14 LP |
531 | |
532 | /* ... space for more immediate system state changes ... */ | |
533 | ||
0658666b LP |
534 | SIGRTMIN+20, /* systemd: enable status messages */ |
535 | SIGRTMIN+21, /* systemd: disable status messages */ | |
253ee27a LP |
536 | SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ |
537 | SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ | |
600b704e | 538 | SIGRTMIN+24, /* systemd: Immediate exit (--user only) */ |
4dffec14 LP |
539 | |
540 | /* .. one free signal here ... */ | |
541 | ||
8750ac02 ZJS |
542 | /* Apparently Linux on hppa had fewer RT signals until v3.18, |
543 | * SIGRTMAX was SIGRTMIN+25, and then SIGRTMIN was lowered, | |
544 | * see commit v3.17-7614-g1f25df2eff. | |
545 | * | |
546 | * We cannot unconditionally make use of those signals here, | |
547 | * so let's use a runtime check. Since these commands are | |
548 | * accessible by different means and only really a safety | |
549 | * net, the missing functionality on hppa shouldn't matter. | |
550 | */ | |
551 | ||
552 | RTSIG_IF_AVAILABLE(SIGRTMIN+26), /* systemd: set log target to journal-or-kmsg */ | |
553 | RTSIG_IF_AVAILABLE(SIGRTMIN+27), /* systemd: set log target to console */ | |
554 | RTSIG_IF_AVAILABLE(SIGRTMIN+28), /* systemd: set log target to kmsg */ | |
555 | RTSIG_IF_AVAILABLE(SIGRTMIN+29), /* systemd: set log target to syslog-or-kmsg (obsolete) */ | |
4dffec14 LP |
556 | |
557 | /* ... one free signal here SIGRTMIN+30 ... */ | |
7d793605 | 558 | -1); |
ce578209 LP |
559 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); |
560 | ||
718db961 LP |
561 | m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); |
562 | if (m->signal_fd < 0) | |
ce578209 LP |
563 | return -errno; |
564 | ||
151b9b96 | 565 | r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m); |
718db961 LP |
566 | if (r < 0) |
567 | return r; | |
ce578209 | 568 | |
7dfbe2e3 TG |
569 | (void) sd_event_source_set_description(m->signal_event_source, "manager-signal"); |
570 | ||
d8fdc620 LP |
571 | /* Process signals a bit earlier than the rest of things, but later than notify_fd processing, so that the |
572 | * notify processing can still figure out to which process/service a message belongs, before we reap the | |
573 | * process. Also, process this before handling cgroup notifications, so that we always collect child exit | |
574 | * status information before detecting that there's no process in a cgroup. */ | |
575 | r = sd_event_source_set_priority(m->signal_event_source, SD_EVENT_PRIORITY_NORMAL-6); | |
29083707 LP |
576 | if (r < 0) |
577 | return r; | |
578 | ||
463d0d15 | 579 | if (MANAGER_IS_SYSTEM(m)) |
80876c20 | 580 | return enable_special_signals(m); |
e1414003 | 581 | |
ce578209 LP |
582 | return 0; |
583 | } | |
584 | ||
1ad6e8b3 | 585 | static char** sanitize_environment(char **l) { |
f069efb4 | 586 | |
47cf8ff2 | 587 | /* Let's remove some environment variables that we need ourselves to communicate with our clients */ |
f069efb4 | 588 | strv_env_unset_many( |
1ad6e8b3 | 589 | l, |
47cf8ff2 LP |
590 | "EXIT_CODE", |
591 | "EXIT_STATUS", | |
592 | "INVOCATION_ID", | |
593 | "JOURNAL_STREAM", | |
594 | "LISTEN_FDNAMES", | |
595 | "LISTEN_FDS", | |
596 | "LISTEN_PID", | |
f069efb4 LP |
597 | "MAINPID", |
598 | "MANAGERPID", | |
47cf8ff2 | 599 | "NOTIFY_SOCKET", |
dcf3c3c3 | 600 | "PIDFILE", |
47cf8ff2 LP |
601 | "REMOTE_ADDR", |
602 | "REMOTE_PORT", | |
603 | "SERVICE_RESULT", | |
f069efb4 LP |
604 | "WATCHDOG_PID", |
605 | "WATCHDOG_USEC", | |
606 | NULL); | |
47cf8ff2 LP |
607 | |
608 | /* Let's order the environment alphabetically, just to make it pretty */ | |
1ad6e8b3 LP |
609 | strv_sort(l); |
610 | ||
611 | return l; | |
f069efb4 LP |
612 | } |
613 | ||
79a224c4 | 614 | int manager_default_environment(Manager *m) { |
db11487d ZJS |
615 | int r; |
616 | ||
71ecc858 LP |
617 | assert(m); |
618 | ||
1ad6e8b3 LP |
619 | m->transient_environment = strv_free(m->transient_environment); |
620 | ||
463d0d15 | 621 | if (MANAGER_IS_SYSTEM(m)) { |
e21fea24 KS |
622 | /* The system manager always starts with a clean |
623 | * environment for its children. It does not import | |
71cb7d30 | 624 | * the kernel's or the parents' exported variables. |
e21fea24 | 625 | * |
71cb7d30 | 626 | * The initial passed environment is untouched to keep |
e21fea24 KS |
627 | * /proc/self/environ valid; it is used for tagging |
628 | * the init process inside containers. */ | |
1ad6e8b3 | 629 | m->transient_environment = strv_new("PATH=" DEFAULT_PATH); |
db11487d ZJS |
630 | if (!m->transient_environment) |
631 | return log_oom(); | |
e21fea24 KS |
632 | |
633 | /* Import locale variables LC_*= from configuration */ | |
1ad6e8b3 | 634 | (void) locale_setup(&m->transient_environment); |
db11487d ZJS |
635 | } else { |
636 | _cleanup_free_ char *k = NULL; | |
637 | ||
e21fea24 | 638 | /* The user manager passes its own environment |
db11487d | 639 | * along to its children, except for $PATH. */ |
1ad6e8b3 | 640 | m->transient_environment = strv_copy(environ); |
db11487d ZJS |
641 | if (!m->transient_environment) |
642 | return log_oom(); | |
643 | ||
644 | k = strdup("PATH=" DEFAULT_USER_PATH); | |
645 | if (!k) | |
646 | return log_oom(); | |
43d03a83 | 647 | |
db11487d ZJS |
648 | r = strv_env_replace(&m->transient_environment, k); |
649 | if (r < 0) | |
650 | return log_oom(); | |
651 | TAKE_PTR(k); | |
652 | } | |
8b55b8c4 | 653 | |
1ad6e8b3 | 654 | sanitize_environment(m->transient_environment); |
9d5a3757 | 655 | |
e21fea24 | 656 | return 0; |
71ecc858 LP |
657 | } |
658 | ||
3536f49e YW |
659 | static int manager_setup_prefix(Manager *m) { |
660 | struct table_entry { | |
661 | uint64_t type; | |
662 | const char *suffix; | |
663 | }; | |
664 | ||
72fd1768 | 665 | static const struct table_entry paths_system[_EXEC_DIRECTORY_TYPE_MAX] = { |
3536f49e YW |
666 | [EXEC_DIRECTORY_RUNTIME] = { SD_PATH_SYSTEM_RUNTIME, NULL }, |
667 | [EXEC_DIRECTORY_STATE] = { SD_PATH_SYSTEM_STATE_PRIVATE, NULL }, | |
668 | [EXEC_DIRECTORY_CACHE] = { SD_PATH_SYSTEM_STATE_CACHE, NULL }, | |
669 | [EXEC_DIRECTORY_LOGS] = { SD_PATH_SYSTEM_STATE_LOGS, NULL }, | |
670 | [EXEC_DIRECTORY_CONFIGURATION] = { SD_PATH_SYSTEM_CONFIGURATION, NULL }, | |
671 | }; | |
672 | ||
72fd1768 | 673 | static const struct table_entry paths_user[_EXEC_DIRECTORY_TYPE_MAX] = { |
3536f49e YW |
674 | [EXEC_DIRECTORY_RUNTIME] = { SD_PATH_USER_RUNTIME, NULL }, |
675 | [EXEC_DIRECTORY_STATE] = { SD_PATH_USER_CONFIGURATION, NULL }, | |
c6218495 LP |
676 | [EXEC_DIRECTORY_CACHE] = { SD_PATH_USER_STATE_CACHE, NULL }, |
677 | [EXEC_DIRECTORY_LOGS] = { SD_PATH_USER_CONFIGURATION, "log" }, | |
678 | [EXEC_DIRECTORY_CONFIGURATION] = { SD_PATH_USER_CONFIGURATION, NULL }, | |
3536f49e YW |
679 | }; |
680 | ||
681 | const struct table_entry *p; | |
682 | ExecDirectoryType i; | |
683 | int r; | |
684 | ||
685 | assert(m); | |
686 | ||
687 | if (MANAGER_IS_SYSTEM(m)) | |
688 | p = paths_system; | |
689 | else | |
690 | p = paths_user; | |
691 | ||
72fd1768 | 692 | for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++) { |
51327bcc | 693 | r = sd_path_lookup(p[i].type, p[i].suffix, &m->prefix[i]); |
3536f49e YW |
694 | if (r < 0) |
695 | return r; | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
e8630e69 ZJS |
701 | static void manager_free_unit_name_maps(Manager *m) { |
702 | m->unit_id_map = hashmap_free(m->unit_id_map); | |
703 | m->unit_name_map = hashmap_free(m->unit_name_map); | |
704 | m->unit_path_cache = set_free_free(m->unit_path_cache); | |
91e0ee5f | 705 | m->unit_cache_mtime = 0; |
e8630e69 ZJS |
706 | } |
707 | ||
279d81dd LP |
708 | static int manager_setup_run_queue(Manager *m) { |
709 | int r; | |
710 | ||
711 | assert(m); | |
712 | assert(!m->run_queue_event_source); | |
713 | ||
714 | r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m); | |
715 | if (r < 0) | |
716 | return r; | |
717 | ||
718 | r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE); | |
719 | if (r < 0) | |
720 | return r; | |
721 | ||
722 | r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF); | |
723 | if (r < 0) | |
724 | return r; | |
725 | ||
726 | (void) sd_event_source_set_description(m->run_queue_event_source, "manager-run-queue"); | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
575b300b LP |
731 | static int manager_setup_sigchld_event_source(Manager *m) { |
732 | int r; | |
733 | ||
734 | assert(m); | |
735 | assert(!m->sigchld_event_source); | |
736 | ||
737 | r = sd_event_add_defer(m->event, &m->sigchld_event_source, manager_dispatch_sigchld, m); | |
738 | if (r < 0) | |
739 | return r; | |
740 | ||
741 | r = sd_event_source_set_priority(m->sigchld_event_source, SD_EVENT_PRIORITY_NORMAL-7); | |
742 | if (r < 0) | |
743 | return r; | |
744 | ||
745 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_OFF); | |
746 | if (r < 0) | |
747 | return r; | |
748 | ||
749 | (void) sd_event_source_set_description(m->sigchld_event_source, "manager-sigchld"); | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
638cece4 | 754 | int manager_new(UnitFileScope scope, ManagerTestRunFlags test_run_flags, Manager **_m) { |
c70cac54 | 755 | _cleanup_(manager_freep) Manager *m = NULL; |
e3dd987c | 756 | int r; |
8e274523 LP |
757 | |
758 | assert(_m); | |
463d0d15 | 759 | assert(IN_SET(scope, UNIT_FILE_SYSTEM, UNIT_FILE_USER)); |
ce578209 | 760 | |
3ad228ce | 761 | m = new(Manager, 1); |
915b3753 | 762 | if (!m) |
8e274523 | 763 | return -ENOMEM; |
60918275 | 764 | |
3ad228ce LP |
765 | *m = (Manager) { |
766 | .unit_file_scope = scope, | |
767 | .objective = _MANAGER_OBJECTIVE_INVALID, | |
768 | ||
36cf4507 ZJS |
769 | .status_unit_format = STATUS_UNIT_FORMAT_DEFAULT, |
770 | ||
3ad228ce LP |
771 | .default_timer_accuracy_usec = USEC_PER_MINUTE, |
772 | .default_memory_accounting = MEMORY_ACCOUNTING_DEFAULT, | |
773 | .default_tasks_accounting = true, | |
3a0f06c4 | 774 | .default_tasks_max = TASKS_MAX_UNSET, |
3ad228ce LP |
775 | .default_timeout_start_usec = DEFAULT_TIMEOUT_USEC, |
776 | .default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC, | |
777 | .default_restart_usec = DEFAULT_RESTART_USEC, | |
778 | ||
779 | .original_log_level = -1, | |
780 | .original_log_target = _LOG_TARGET_INVALID, | |
781 | ||
782 | .notify_fd = -1, | |
783 | .cgroups_agent_fd = -1, | |
784 | .signal_fd = -1, | |
785 | .time_change_fd = -1, | |
786 | .user_lookup_fds = { -1, -1 }, | |
787 | .private_listen_fd = -1, | |
788 | .dev_autofs_fd = -1, | |
789 | .cgroup_inotify_fd = -1, | |
790 | .pin_cgroupfs_fd = -1, | |
791 | .ask_password_inotify_fd = -1, | |
792 | .idle_pipe = { -1, -1, -1, -1}, | |
793 | ||
794 | /* start as id #1, so that we can leave #0 around as "null-like" value */ | |
795 | .current_job_id = 1, | |
796 | ||
797 | .have_ask_password = -EINVAL, /* we don't know */ | |
798 | .first_boot = -1, | |
799 | .test_run_flags = test_run_flags, | |
afcfaa69 LP |
800 | |
801 | .default_oom_policy = OOM_STOP, | |
3ad228ce | 802 | }; |
80876c20 | 803 | |
349cc4a5 | 804 | #if ENABLE_EFI |
463d0d15 | 805 | if (MANAGER_IS_SYSTEM(m) && detect_container() <= 0) |
9f9f0342 LP |
806 | boot_timestamps(m->timestamps + MANAGER_TIMESTAMP_USERSPACE, |
807 | m->timestamps + MANAGER_TIMESTAMP_FIRMWARE, | |
808 | m->timestamps + MANAGER_TIMESTAMP_LOADER); | |
463d0d15 LP |
809 | #endif |
810 | ||
f2341e0a | 811 | /* Prepare log fields we can use for structured logging */ |
463d0d15 LP |
812 | if (MANAGER_IS_SYSTEM(m)) { |
813 | m->unit_log_field = "UNIT="; | |
814 | m->unit_log_format_string = "UNIT=%s"; | |
4b58153d LP |
815 | |
816 | m->invocation_log_field = "INVOCATION_ID="; | |
f1c50bec | 817 | m->invocation_log_format_string = "INVOCATION_ID=%s"; |
463d0d15 LP |
818 | } else { |
819 | m->unit_log_field = "USER_UNIT="; | |
820 | m->unit_log_format_string = "USER_UNIT=%s"; | |
4b58153d LP |
821 | |
822 | m->invocation_log_field = "USER_INVOCATION_ID="; | |
f1c50bec | 823 | m->invocation_log_format_string = "USER_INVOCATION_ID=%s"; |
463d0d15 | 824 | } |
f2341e0a | 825 | |
2e5c94b9 | 826 | /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */ |
8c227e7f | 827 | m->ctrl_alt_del_ratelimit = (RateLimit) { .interval = 2 * USEC_PER_SEC, .burst = 7 }; |
2e5c94b9 | 828 | |
e21fea24 KS |
829 | r = manager_default_environment(m); |
830 | if (r < 0) | |
c70cac54 | 831 | return r; |
1137a57c | 832 | |
d5099efc | 833 | r = hashmap_ensure_allocated(&m->units, &string_hash_ops); |
718db961 | 834 | if (r < 0) |
c70cac54 | 835 | return r; |
60918275 | 836 | |
d5099efc | 837 | r = hashmap_ensure_allocated(&m->jobs, NULL); |
718db961 | 838 | if (r < 0) |
c70cac54 | 839 | return r; |
60918275 | 840 | |
548f6937 | 841 | r = hashmap_ensure_allocated(&m->cgroup_unit, &path_hash_ops); |
718db961 | 842 | if (r < 0) |
c70cac54 | 843 | return r; |
9152c765 | 844 | |
d5099efc | 845 | r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops); |
718db961 | 846 | if (r < 0) |
c70cac54 | 847 | return r; |
05e343b7 | 848 | |
da8e1782 MO |
849 | r = prioq_ensure_allocated(&m->run_queue, compare_job_priority); |
850 | if (r < 0) | |
851 | return r; | |
852 | ||
e8112e67 | 853 | r = manager_setup_prefix(m); |
718db961 | 854 | if (r < 0) |
c70cac54 | 855 | return r; |
8742514c | 856 | |
e8112e67 | 857 | r = sd_event_default(&m->event); |
8742514c | 858 | if (r < 0) |
c70cac54 | 859 | return r; |
9152c765 | 860 | |
e8112e67 | 861 | r = manager_setup_run_queue(m); |
a1d32bac | 862 | if (r < 0) |
c70cac54 | 863 | return r; |
8e274523 | 864 | |
e8112e67 ZJS |
865 | if (test_run_flags == MANAGER_TEST_RUN_MINIMAL) { |
866 | m->cgroup_root = strdup(""); | |
867 | if (!m->cgroup_root) | |
868 | return -ENOMEM; | |
869 | } else { | |
870 | r = manager_setup_signals(m); | |
871 | if (r < 0) | |
872 | return r; | |
8c47c732 | 873 | |
e8112e67 ZJS |
874 | r = manager_setup_cgroup(m); |
875 | if (r < 0) | |
876 | return r; | |
575b300b | 877 | |
e8112e67 ZJS |
878 | r = manager_setup_time_change(m); |
879 | if (r < 0) | |
880 | return r; | |
9670d583 | 881 | |
bbf5fd8e LP |
882 | r = manager_read_timezone_stat(m); |
883 | if (r < 0) | |
884 | return r; | |
885 | ||
ea5c5f68 | 886 | (void) manager_setup_timezone_change(m); |
bbf5fd8e | 887 | |
e8112e67 ZJS |
888 | r = manager_setup_sigchld_event_source(m); |
889 | if (r < 0) | |
890 | return r; | |
891 | } | |
e27fe688 | 892 | |
2f8c48b6 AZ |
893 | if (test_run_flags == 0) { |
894 | if (MANAGER_IS_SYSTEM(m)) | |
895 | r = mkdir_label("/run/systemd/units", 0755); | |
896 | else { | |
897 | _cleanup_free_ char *units_path = NULL; | |
898 | r = xdg_user_runtime_dir(&units_path, "/systemd/units"); | |
899 | if (r < 0) | |
900 | return r; | |
901 | r = mkdir_p_label(units_path, 0755); | |
902 | } | |
903 | ||
d3070fbd | 904 | if (r < 0 && r != -EEXIST) |
c70cac54 | 905 | return r; |
d3070fbd LP |
906 | } |
907 | ||
e27fe688 LP |
908 | m->taint_usr = |
909 | !in_initrd() && | |
910 | dir_is_empty("/usr") > 0; | |
911 | ||
232f6754 ZJS |
912 | /* Note that we do not set up the notify fd here. We do that after deserialization, |
913 | * since they might have gotten serialized across the reexec. */ | |
3536f49e | 914 | |
1cc6c93a YW |
915 | *_m = TAKE_PTR(m); |
916 | ||
8e274523 | 917 | return 0; |
60918275 LP |
918 | } |
919 | ||
d86f9d52 | 920 | static int manager_setup_notify(Manager *m) { |
7181dbdb | 921 | int r; |
d86f9d52 | 922 | |
638cece4 | 923 | if (MANAGER_IS_TEST_RUN(m)) |
0d8c31ff ZJS |
924 | return 0; |
925 | ||
d86f9d52 LP |
926 | if (m->notify_fd < 0) { |
927 | _cleanup_close_ int fd = -1; | |
f36a9d59 ZJS |
928 | union sockaddr_union sa; |
929 | socklen_t sa_len; | |
d86f9d52 LP |
930 | |
931 | /* First free all secondary fields */ | |
a1e58e8e | 932 | m->notify_socket = mfree(m->notify_socket); |
d86f9d52 LP |
933 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
934 | ||
935 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
4a62c710 MS |
936 | if (fd < 0) |
937 | return log_error_errno(errno, "Failed to allocate notification socket: %m"); | |
d86f9d52 | 938 | |
a47806fa LP |
939 | fd_inc_rcvbuf(fd, NOTIFY_RCVBUF_SIZE); |
940 | ||
b910cc72 | 941 | m->notify_socket = path_join(m->prefix[EXEC_DIRECTORY_RUNTIME], "systemd/notify"); |
498e87d6 LP |
942 | if (!m->notify_socket) |
943 | return log_oom(); | |
944 | ||
f36a9d59 ZJS |
945 | r = sockaddr_un_set_path(&sa.un, m->notify_socket); |
946 | if (r < 0) | |
947 | return log_error_errno(r, "Notify socket '%s' not valid for AF_UNIX socket address, refusing.", | |
948 | m->notify_socket); | |
949 | sa_len = r; | |
15a3e96f | 950 | |
498e87d6 | 951 | (void) mkdir_parents_label(m->notify_socket, 0755); |
fbda85b0 | 952 | (void) sockaddr_un_unlink(&sa.un); |
7181dbdb | 953 | |
f36a9d59 | 954 | r = bind(fd, &sa.sa, sa_len); |
4a62c710 | 955 | if (r < 0) |
15a3e96f | 956 | return log_error_errno(errno, "bind(%s) failed: %m", m->notify_socket); |
d86f9d52 | 957 | |
2ff48e98 | 958 | r = setsockopt_int(fd, SOL_SOCKET, SO_PASSCRED, true); |
4a62c710 | 959 | if (r < 0) |
2ff48e98 | 960 | return log_error_errno(r, "SO_PASSCRED failed: %m"); |
d86f9d52 | 961 | |
c10d6bdb | 962 | m->notify_fd = TAKE_FD(fd); |
d86f9d52 LP |
963 | |
964 | log_debug("Using notification socket %s", m->notify_socket); | |
965 | } | |
966 | ||
967 | if (!m->notify_event_source) { | |
151b9b96 | 968 | r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m); |
895b3a7b MS |
969 | if (r < 0) |
970 | return log_error_errno(r, "Failed to allocate notify event source: %m"); | |
d86f9d52 | 971 | |
d8fdc620 LP |
972 | /* Process notification messages a bit earlier than SIGCHLD, so that we can still identify to which |
973 | * service an exit message belongs. */ | |
575b300b | 974 | r = sd_event_source_set_priority(m->notify_event_source, SD_EVENT_PRIORITY_NORMAL-8); |
23bbb0de MS |
975 | if (r < 0) |
976 | return log_error_errno(r, "Failed to set priority of notify event source: %m"); | |
7dfbe2e3 TG |
977 | |
978 | (void) sd_event_source_set_description(m->notify_event_source, "manager-notify"); | |
d86f9d52 LP |
979 | } |
980 | ||
981 | return 0; | |
982 | } | |
983 | ||
d8fdc620 LP |
984 | static int manager_setup_cgroups_agent(Manager *m) { |
985 | ||
986 | static const union sockaddr_union sa = { | |
987 | .un.sun_family = AF_UNIX, | |
988 | .un.sun_path = "/run/systemd/cgroups-agent", | |
989 | }; | |
990 | int r; | |
991 | ||
992 | /* This creates a listening socket we receive cgroups agent messages on. We do not use D-Bus for delivering | |
993 | * these messages from the cgroups agent binary to PID 1, as the cgroups agent binary is very short-living, and | |
994 | * each instance of it needs a new D-Bus connection. Since D-Bus connections are SOCK_STREAM/AF_UNIX, on | |
995 | * overloaded systems the backlog of the D-Bus socket becomes relevant, as not more than the configured number | |
996 | * of D-Bus connections may be queued until the kernel will start dropping further incoming connections, | |
997 | * possibly resulting in lost cgroups agent messages. To avoid this, we'll use a private SOCK_DGRAM/AF_UNIX | |
998 | * socket, where no backlog is relevant as communication may take place without an actual connect() cycle, and | |
999 | * we thus won't lose messages. | |
1000 | * | |
1001 | * Note that PID 1 will forward the agent message to system bus, so that the user systemd instance may listen | |
1002 | * to it. The system instance hence listens on this special socket, but the user instances listen on the system | |
1003 | * bus for these messages. */ | |
1004 | ||
638cece4 | 1005 | if (MANAGER_IS_TEST_RUN(m)) |
d8fdc620 LP |
1006 | return 0; |
1007 | ||
1008 | if (!MANAGER_IS_SYSTEM(m)) | |
1009 | return 0; | |
1010 | ||
c22800e4 | 1011 | r = cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER); |
b4cccbc1 LP |
1012 | if (r < 0) |
1013 | return log_error_errno(r, "Failed to determine whether unified cgroups hierarchy is used: %m"); | |
1014 | if (r > 0) /* We don't need this anymore on the unified hierarchy */ | |
d8fdc620 LP |
1015 | return 0; |
1016 | ||
1017 | if (m->cgroups_agent_fd < 0) { | |
1018 | _cleanup_close_ int fd = -1; | |
1019 | ||
1020 | /* First free all secondary fields */ | |
1021 | m->cgroups_agent_event_source = sd_event_source_unref(m->cgroups_agent_event_source); | |
1022 | ||
1023 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
1024 | if (fd < 0) | |
1025 | return log_error_errno(errno, "Failed to allocate cgroups agent socket: %m"); | |
1026 | ||
1027 | fd_inc_rcvbuf(fd, CGROUPS_AGENT_RCVBUF_SIZE); | |
1028 | ||
155b6876 | 1029 | (void) sockaddr_un_unlink(&sa.un); |
d8fdc620 LP |
1030 | |
1031 | /* Only allow root to connect to this socket */ | |
1032 | RUN_WITH_UMASK(0077) | |
fc2fffe7 | 1033 | r = bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)); |
d8fdc620 LP |
1034 | if (r < 0) |
1035 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
1036 | ||
0b7e8b32 | 1037 | m->cgroups_agent_fd = TAKE_FD(fd); |
d8fdc620 LP |
1038 | } |
1039 | ||
1040 | if (!m->cgroups_agent_event_source) { | |
1041 | r = sd_event_add_io(m->event, &m->cgroups_agent_event_source, m->cgroups_agent_fd, EPOLLIN, manager_dispatch_cgroups_agent_fd, m); | |
1042 | if (r < 0) | |
1043 | return log_error_errno(r, "Failed to allocate cgroups agent event source: %m"); | |
1044 | ||
cbe83389 LP |
1045 | /* Process cgroups notifications early. Note that when the agent notification is received |
1046 | * we'll just enqueue the unit in the cgroup empty queue, hence pick a high priority than | |
1047 | * that. Also see handling of cgroup inotify for the unified cgroup stuff. */ | |
1048 | r = sd_event_source_set_priority(m->cgroups_agent_event_source, SD_EVENT_PRIORITY_NORMAL-9); | |
d8fdc620 LP |
1049 | if (r < 0) |
1050 | return log_error_errno(r, "Failed to set priority of cgroups agent event source: %m"); | |
1051 | ||
1052 | (void) sd_event_source_set_description(m->cgroups_agent_event_source, "manager-cgroups-agent"); | |
1053 | } | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
00d9ef85 LP |
1058 | static int manager_setup_user_lookup_fd(Manager *m) { |
1059 | int r; | |
1060 | ||
1061 | assert(m); | |
1062 | ||
1063 | /* Set up the socket pair used for passing UID/GID resolution results from forked off processes to PID | |
1064 | * 1. Background: we can't do name lookups (NSS) from PID 1, since it might involve IPC and thus activation, | |
1065 | * and we might hence deadlock on ourselves. Hence we do all user/group lookups asynchronously from the forked | |
1066 | * off processes right before executing the binaries to start. In order to be able to clean up any IPC objects | |
1067 | * created by a unit (see RemoveIPC=) we need to know in PID 1 the used UID/GID of the executed processes, | |
1068 | * hence we establish this communication channel so that forked off processes can pass their UID/GID | |
1069 | * information back to PID 1. The forked off processes send their resolved UID/GID to PID 1 in a simple | |
1070 | * datagram, along with their unit name, so that we can share one communication socket pair among all units for | |
1071 | * this purpose. | |
1072 | * | |
1073 | * You might wonder why we need a communication channel for this that is independent of the usual notification | |
1074 | * socket scheme (i.e. $NOTIFY_SOCKET). The primary difference is about trust: data sent via the $NOTIFY_SOCKET | |
1075 | * channel is only accepted if it originates from the right unit and if reception was enabled for it. The user | |
1076 | * lookup socket OTOH is only accessible by PID 1 and its children until they exec(), and always available. | |
1077 | * | |
1078 | * Note that this function is called under two circumstances: when we first initialize (in which case we | |
1079 | * allocate both the socket pair and the event source to listen on it), and when we deserialize after a reload | |
1080 | * (in which case the socket pair already exists but we still need to allocate the event source for it). */ | |
1081 | ||
1082 | if (m->user_lookup_fds[0] < 0) { | |
1083 | ||
1084 | /* Free all secondary fields */ | |
1085 | safe_close_pair(m->user_lookup_fds); | |
1086 | m->user_lookup_event_source = sd_event_source_unref(m->user_lookup_event_source); | |
1087 | ||
1088 | if (socketpair(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0, m->user_lookup_fds) < 0) | |
1089 | return log_error_errno(errno, "Failed to allocate user lookup socket: %m"); | |
1090 | ||
1091 | (void) fd_inc_rcvbuf(m->user_lookup_fds[0], NOTIFY_RCVBUF_SIZE); | |
1092 | } | |
1093 | ||
1094 | if (!m->user_lookup_event_source) { | |
1095 | r = sd_event_add_io(m->event, &m->user_lookup_event_source, m->user_lookup_fds[0], EPOLLIN, manager_dispatch_user_lookup_fd, m); | |
1096 | if (r < 0) | |
1097 | return log_error_errno(errno, "Failed to allocate user lookup event source: %m"); | |
1098 | ||
1099 | /* Process even earlier than the notify event source, so that we always know first about valid UID/GID | |
1100 | * resolutions */ | |
67ae4e8d | 1101 | r = sd_event_source_set_priority(m->user_lookup_event_source, SD_EVENT_PRIORITY_NORMAL-11); |
00d9ef85 | 1102 | if (r < 0) |
5238e957 | 1103 | return log_error_errno(errno, "Failed to set priority of user lookup event source: %m"); |
00d9ef85 LP |
1104 | |
1105 | (void) sd_event_source_set_description(m->user_lookup_event_source, "user-lookup"); | |
1106 | } | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
23a177ef | 1111 | static unsigned manager_dispatch_cleanup_queue(Manager *m) { |
595ed347 | 1112 | Unit *u; |
23a177ef LP |
1113 | unsigned n = 0; |
1114 | ||
1115 | assert(m); | |
1116 | ||
595ed347 MS |
1117 | while ((u = m->cleanup_queue)) { |
1118 | assert(u->in_cleanup_queue); | |
23a177ef | 1119 | |
595ed347 | 1120 | unit_free(u); |
23a177ef LP |
1121 | n++; |
1122 | } | |
1123 | ||
1124 | return n; | |
1125 | } | |
1126 | ||
eced69b3 | 1127 | enum { |
35b8ca3a | 1128 | GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */ |
eced69b3 LP |
1129 | GC_OFFSET_UNSURE, /* No clue */ |
1130 | GC_OFFSET_GOOD, /* We still need this unit */ | |
1131 | GC_OFFSET_BAD, /* We don't need this unit anymore */ | |
1132 | _GC_OFFSET_MAX | |
1133 | }; | |
1134 | ||
00d9ef85 | 1135 | static void unit_gc_mark_good(Unit *u, unsigned gc_marker) { |
4892084f | 1136 | Unit *other; |
eef85c4a LP |
1137 | Iterator i; |
1138 | void *v; | |
4892084f LN |
1139 | |
1140 | u->gc_marker = gc_marker + GC_OFFSET_GOOD; | |
1141 | ||
1142 | /* Recursively mark referenced units as GOOD as well */ | |
eef85c4a | 1143 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_REFERENCES], i) |
4892084f LN |
1144 | if (other->gc_marker == gc_marker + GC_OFFSET_UNSURE) |
1145 | unit_gc_mark_good(other, gc_marker); | |
1146 | } | |
1147 | ||
eced69b3 | 1148 | static void unit_gc_sweep(Unit *u, unsigned gc_marker) { |
701cc384 | 1149 | Unit *other; |
eced69b3 | 1150 | bool is_bad; |
eef85c4a LP |
1151 | Iterator i; |
1152 | void *v; | |
701cc384 LP |
1153 | |
1154 | assert(u); | |
1155 | ||
4c701096 YW |
1156 | if (IN_SET(u->gc_marker - gc_marker, |
1157 | GC_OFFSET_GOOD, GC_OFFSET_BAD, GC_OFFSET_UNSURE, GC_OFFSET_IN_PATH)) | |
701cc384 LP |
1158 | return; |
1159 | ||
ac155bb8 | 1160 | if (u->in_cleanup_queue) |
701cc384 LP |
1161 | goto bad; |
1162 | ||
f2f725e5 | 1163 | if (!unit_may_gc(u)) |
701cc384 LP |
1164 | goto good; |
1165 | ||
ac155bb8 | 1166 | u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; |
eced69b3 LP |
1167 | |
1168 | is_bad = true; | |
1169 | ||
eef85c4a | 1170 | HASHMAP_FOREACH_KEY(v, other, u->dependencies[UNIT_REFERENCED_BY], i) { |
701cc384 LP |
1171 | unit_gc_sweep(other, gc_marker); |
1172 | ||
ac155bb8 | 1173 | if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) |
701cc384 | 1174 | goto good; |
eced69b3 | 1175 | |
ac155bb8 | 1176 | if (other->gc_marker != gc_marker + GC_OFFSET_BAD) |
eced69b3 | 1177 | is_bad = false; |
701cc384 LP |
1178 | } |
1179 | ||
2641f02e ZJS |
1180 | if (u->refs_by_target) { |
1181 | const UnitRef *ref; | |
1182 | ||
1183 | LIST_FOREACH(refs_by_target, ref, u->refs_by_target) { | |
1184 | unit_gc_sweep(ref->source, gc_marker); | |
1185 | ||
1186 | if (ref->source->gc_marker == gc_marker + GC_OFFSET_GOOD) | |
1187 | goto good; | |
1188 | ||
1189 | if (ref->source->gc_marker != gc_marker + GC_OFFSET_BAD) | |
1190 | is_bad = false; | |
1191 | } | |
1192 | } | |
701cc384 | 1193 | |
eced69b3 LP |
1194 | if (is_bad) |
1195 | goto bad; | |
1196 | ||
1197 | /* We were unable to find anything out about this entry, so | |
1198 | * let's investigate it later */ | |
ac155bb8 | 1199 | u->gc_marker = gc_marker + GC_OFFSET_UNSURE; |
eced69b3 LP |
1200 | unit_add_to_gc_queue(u); |
1201 | return; | |
1202 | ||
701cc384 | 1203 | bad: |
eced69b3 LP |
1204 | /* We definitely know that this one is not useful anymore, so |
1205 | * let's mark it for deletion */ | |
ac155bb8 | 1206 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
eced69b3 | 1207 | unit_add_to_cleanup_queue(u); |
701cc384 LP |
1208 | return; |
1209 | ||
1210 | good: | |
4892084f | 1211 | unit_gc_mark_good(u, gc_marker); |
701cc384 LP |
1212 | } |
1213 | ||
c5a97ed1 LP |
1214 | static unsigned manager_dispatch_gc_unit_queue(Manager *m) { |
1215 | unsigned n = 0, gc_marker; | |
595ed347 | 1216 | Unit *u; |
701cc384 LP |
1217 | |
1218 | assert(m); | |
1219 | ||
cf1265e1 | 1220 | /* log_debug("Running GC..."); */ |
701cc384 | 1221 | |
eced69b3 LP |
1222 | m->gc_marker += _GC_OFFSET_MAX; |
1223 | if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX) | |
c9c0cadb | 1224 | m->gc_marker = 1; |
701cc384 | 1225 | |
eced69b3 LP |
1226 | gc_marker = m->gc_marker; |
1227 | ||
c5a97ed1 | 1228 | while ((u = m->gc_unit_queue)) { |
595ed347 | 1229 | assert(u->in_gc_queue); |
701cc384 | 1230 | |
595ed347 | 1231 | unit_gc_sweep(u, gc_marker); |
eced69b3 | 1232 | |
c5a97ed1 | 1233 | LIST_REMOVE(gc_queue, m->gc_unit_queue, u); |
595ed347 | 1234 | u->in_gc_queue = false; |
701cc384 LP |
1235 | |
1236 | n++; | |
1237 | ||
4c701096 YW |
1238 | if (IN_SET(u->gc_marker - gc_marker, |
1239 | GC_OFFSET_BAD, GC_OFFSET_UNSURE)) { | |
cc3bc3e6 | 1240 | if (u->id) |
f2341e0a | 1241 | log_unit_debug(u, "Collecting."); |
595ed347 MS |
1242 | u->gc_marker = gc_marker + GC_OFFSET_BAD; |
1243 | unit_add_to_cleanup_queue(u); | |
701cc384 LP |
1244 | } |
1245 | } | |
1246 | ||
701cc384 LP |
1247 | return n; |
1248 | } | |
1249 | ||
c5a97ed1 LP |
1250 | static unsigned manager_dispatch_gc_job_queue(Manager *m) { |
1251 | unsigned n = 0; | |
1252 | Job *j; | |
1253 | ||
1254 | assert(m); | |
1255 | ||
1256 | while ((j = m->gc_job_queue)) { | |
1257 | assert(j->in_gc_queue); | |
1258 | ||
1259 | LIST_REMOVE(gc_queue, m->gc_job_queue, j); | |
1260 | j->in_gc_queue = false; | |
1261 | ||
1262 | n++; | |
1263 | ||
2ab3050f | 1264 | if (!job_may_gc(j)) |
c5a97ed1 LP |
1265 | continue; |
1266 | ||
1267 | log_unit_debug(j->unit, "Collecting job."); | |
1268 | (void) job_finish_and_invalidate(j, JOB_COLLECTED, false, false); | |
1269 | } | |
1270 | ||
1271 | return n; | |
1272 | } | |
1273 | ||
a3c1168a LP |
1274 | static unsigned manager_dispatch_stop_when_unneeded_queue(Manager *m) { |
1275 | unsigned n = 0; | |
1276 | Unit *u; | |
1277 | int r; | |
1278 | ||
1279 | assert(m); | |
1280 | ||
1281 | while ((u = m->stop_when_unneeded_queue)) { | |
1282 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
1283 | assert(m->stop_when_unneeded_queue); | |
1284 | ||
1285 | assert(u->in_stop_when_unneeded_queue); | |
1286 | LIST_REMOVE(stop_when_unneeded_queue, m->stop_when_unneeded_queue, u); | |
1287 | u->in_stop_when_unneeded_queue = false; | |
1288 | ||
1289 | n++; | |
1290 | ||
1291 | if (!unit_is_unneeded(u)) | |
1292 | continue; | |
1293 | ||
1294 | log_unit_debug(u, "Unit is not needed anymore."); | |
1295 | ||
1296 | /* If stopping a unit fails continuously we might enter a stop loop here, hence stop acting on the | |
1297 | * service being unnecessary after a while. */ | |
1298 | ||
1299 | if (!ratelimit_below(&u->auto_stop_ratelimit)) { | |
1300 | log_unit_warning(u, "Unit not needed anymore, but not stopping since we tried this too often recently."); | |
1301 | continue; | |
1302 | } | |
1303 | ||
1304 | /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */ | |
50cbaba4 | 1305 | r = manager_add_job(u->manager, JOB_STOP, u, JOB_FAIL, NULL, &error, NULL); |
a3c1168a LP |
1306 | if (r < 0) |
1307 | log_unit_warning_errno(u, r, "Failed to enqueue stop job, ignoring: %s", bus_error_message(&error, r)); | |
1308 | } | |
1309 | ||
1310 | return n; | |
1311 | } | |
1312 | ||
a16e1123 | 1313 | static void manager_clear_jobs_and_units(Manager *m) { |
a16e1123 | 1314 | Unit *u; |
60918275 LP |
1315 | |
1316 | assert(m); | |
1317 | ||
87f0e418 LP |
1318 | while ((u = hashmap_first(m->units))) |
1319 | unit_free(u); | |
964e0949 LP |
1320 | |
1321 | manager_dispatch_cleanup_queue(m); | |
1322 | ||
1323 | assert(!m->load_queue); | |
da8e1782 | 1324 | assert(prioq_isempty(m->run_queue)); |
964e0949 LP |
1325 | assert(!m->dbus_unit_queue); |
1326 | assert(!m->dbus_job_queue); | |
1327 | assert(!m->cleanup_queue); | |
c5a97ed1 LP |
1328 | assert(!m->gc_unit_queue); |
1329 | assert(!m->gc_job_queue); | |
a3c1168a | 1330 | assert(!m->stop_when_unneeded_queue); |
964e0949 | 1331 | |
964e0949 LP |
1332 | assert(hashmap_isempty(m->jobs)); |
1333 | assert(hashmap_isempty(m->units)); | |
9e9e2b72 MS |
1334 | |
1335 | m->n_on_console = 0; | |
1336 | m->n_running_jobs = 0; | |
1e75824c MK |
1337 | m->n_installed_jobs = 0; |
1338 | m->n_failed_jobs = 0; | |
a16e1123 LP |
1339 | } |
1340 | ||
06d8d842 | 1341 | Manager* manager_free(Manager *m) { |
35aba85a | 1342 | ExecDirectoryType dt; |
86036b26 | 1343 | UnitType c; |
87f0e418 | 1344 | |
06d8d842 ZJS |
1345 | if (!m) |
1346 | return NULL; | |
a16e1123 LP |
1347 | |
1348 | manager_clear_jobs_and_units(m); | |
23a177ef | 1349 | |
7824bbeb LP |
1350 | for (c = 0; c < _UNIT_TYPE_MAX; c++) |
1351 | if (unit_vtable[c]->shutdown) | |
1352 | unit_vtable[c]->shutdown(m); | |
1353 | ||
86036b26 LP |
1354 | /* Keep the cgroup hierarchy in place except when we know we are going down for good */ |
1355 | manager_shutdown_cgroup(m, IN_SET(m->objective, MANAGER_EXIT, MANAGER_REBOOT, MANAGER_POWEROFF, MANAGER_HALT, MANAGER_KEXEC)); | |
8e274523 | 1356 | |
07a78643 | 1357 | lookup_paths_flush_generator(&m->lookup_paths); |
5a1e9937 | 1358 | |
5e8d1c9a | 1359 | bus_done(m); |
19d22d43 | 1360 | manager_varlink_done(m); |
ea430986 | 1361 | |
e8a565cb YW |
1362 | exec_runtime_vacuum(m); |
1363 | hashmap_free(m->exec_runtime_by_id); | |
1364 | ||
29206d46 LP |
1365 | dynamic_user_vacuum(m, false); |
1366 | hashmap_free(m->dynamic_users); | |
1367 | ||
87f0e418 | 1368 | hashmap_free(m->units); |
4b58153d | 1369 | hashmap_free(m->units_by_invocation_id); |
60918275 | 1370 | hashmap_free(m->jobs); |
62a76913 | 1371 | hashmap_free(m->watch_pids); |
05e343b7 | 1372 | hashmap_free(m->watch_bus); |
9152c765 | 1373 | |
da8e1782 MO |
1374 | prioq_free(m->run_queue); |
1375 | ||
95ae05c0 | 1376 | set_free(m->startup_units); |
f755e3b7 LP |
1377 | set_free(m->failed_units); |
1378 | ||
718db961 | 1379 | sd_event_source_unref(m->signal_event_source); |
575b300b | 1380 | sd_event_source_unref(m->sigchld_event_source); |
718db961 | 1381 | sd_event_source_unref(m->notify_event_source); |
d8fdc620 | 1382 | sd_event_source_unref(m->cgroups_agent_event_source); |
718db961 | 1383 | sd_event_source_unref(m->time_change_event_source); |
bbf5fd8e | 1384 | sd_event_source_unref(m->timezone_change_event_source); |
718db961 | 1385 | sd_event_source_unref(m->jobs_in_progress_event_source); |
752b5905 | 1386 | sd_event_source_unref(m->run_queue_event_source); |
00d9ef85 | 1387 | sd_event_source_unref(m->user_lookup_event_source); |
718db961 | 1388 | |
03e334a1 LP |
1389 | safe_close(m->signal_fd); |
1390 | safe_close(m->notify_fd); | |
d8fdc620 | 1391 | safe_close(m->cgroups_agent_fd); |
03e334a1 | 1392 | safe_close(m->time_change_fd); |
00d9ef85 | 1393 | safe_close_pair(m->user_lookup_fds); |
718db961 | 1394 | |
e46b13c8 ZJS |
1395 | manager_close_ask_password(m); |
1396 | ||
718db961 LP |
1397 | manager_close_idle_pipe(m); |
1398 | ||
1399 | sd_event_unref(m->event); | |
60918275 | 1400 | |
c952c6ec LP |
1401 | free(m->notify_socket); |
1402 | ||
84e3543e | 1403 | lookup_paths_free(&m->lookup_paths); |
1ad6e8b3 LP |
1404 | strv_free(m->transient_environment); |
1405 | strv_free(m->client_environment); | |
036643a2 | 1406 | |
4ad49000 | 1407 | hashmap_free(m->cgroup_unit); |
e8630e69 | 1408 | manager_free_unit_name_maps(m); |
33be102a | 1409 | |
664f88a7 LP |
1410 | free(m->switch_root); |
1411 | free(m->switch_root_init); | |
1412 | ||
31ce987c | 1413 | rlimit_free_all(m->rlimit); |
c93ff2e9 | 1414 | |
a57f7e2c LP |
1415 | assert(hashmap_isempty(m->units_requiring_mounts_for)); |
1416 | hashmap_free(m->units_requiring_mounts_for); | |
1417 | ||
00d9ef85 LP |
1418 | hashmap_free(m->uid_refs); |
1419 | hashmap_free(m->gid_refs); | |
1420 | ||
72fd1768 | 1421 | for (dt = 0; dt < _EXEC_DIRECTORY_TYPE_MAX; dt++) |
35aba85a YW |
1422 | m->prefix[dt] = mfree(m->prefix[dt]); |
1423 | ||
6b430fdb | 1424 | return mfree(m); |
60918275 LP |
1425 | } |
1426 | ||
04eb582a LP |
1427 | static void manager_enumerate_perpetual(Manager *m) { |
1428 | UnitType c; | |
1429 | ||
1430 | assert(m); | |
1431 | ||
b1d5246d ZJS |
1432 | if (m->test_run_flags == MANAGER_TEST_RUN_MINIMAL) |
1433 | return; | |
1434 | ||
04eb582a LP |
1435 | /* Let's ask every type to load all units from disk/kernel that it might know */ |
1436 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { | |
1437 | if (!unit_type_supported(c)) { | |
1438 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); | |
1439 | continue; | |
1440 | } | |
1441 | ||
1442 | if (unit_vtable[c]->enumerate_perpetual) | |
1443 | unit_vtable[c]->enumerate_perpetual(m); | |
1444 | } | |
1445 | } | |
1446 | ||
a1113e08 | 1447 | static void manager_enumerate(Manager *m) { |
f50e0a01 | 1448 | UnitType c; |
f50e0a01 LP |
1449 | |
1450 | assert(m); | |
1451 | ||
b1d5246d ZJS |
1452 | if (m->test_run_flags == MANAGER_TEST_RUN_MINIMAL) |
1453 | return; | |
1454 | ||
04eb582a | 1455 | /* Let's ask every type to load all units from disk/kernel that it might know */ |
0faacd47 | 1456 | for (c = 0; c < _UNIT_TYPE_MAX; c++) { |
1c2e9646 | 1457 | if (!unit_type_supported(c)) { |
03afec3c | 1458 | log_debug("Unit type .%s is not supported on this system.", unit_type_to_string(c)); |
0faacd47 | 1459 | continue; |
a57f7e2c | 1460 | } |
f50e0a01 | 1461 | |
94b01dae ZJS |
1462 | if (unit_vtable[c]->enumerate) |
1463 | unit_vtable[c]->enumerate(m); | |
0faacd47 LP |
1464 | } |
1465 | ||
f50e0a01 | 1466 | manager_dispatch_load_queue(m); |
a16e1123 LP |
1467 | } |
1468 | ||
007c6337 | 1469 | static void manager_coldplug(Manager *m) { |
a16e1123 LP |
1470 | Iterator i; |
1471 | Unit *u; | |
1472 | char *k; | |
007c6337 | 1473 | int r; |
a16e1123 LP |
1474 | |
1475 | assert(m); | |
f50e0a01 | 1476 | |
f0831ed2 LP |
1477 | log_debug("Invoking unit coldplug() handlers…"); |
1478 | ||
1479 | /* Let's place the units back into their deserialized state */ | |
f50e0a01 LP |
1480 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { |
1481 | ||
1482 | /* ignore aliases */ | |
ac155bb8 | 1483 | if (u->id != k) |
f50e0a01 LP |
1484 | continue; |
1485 | ||
007c6337 LP |
1486 | r = unit_coldplug(u); |
1487 | if (r < 0) | |
1488 | log_warning_errno(r, "We couldn't coldplug %s, proceeding anyway: %m", u->id); | |
f50e0a01 | 1489 | } |
a16e1123 LP |
1490 | } |
1491 | ||
f0831ed2 LP |
1492 | static void manager_catchup(Manager *m) { |
1493 | Iterator i; | |
1494 | Unit *u; | |
1495 | char *k; | |
1496 | ||
1497 | assert(m); | |
1498 | ||
1499 | log_debug("Invoking unit catchup() handlers…"); | |
1500 | ||
1501 | /* Let's catch up on any state changes that happened while we were reloading/reexecing */ | |
1502 | HASHMAP_FOREACH_KEY(u, k, m->units, i) { | |
1503 | ||
1504 | /* ignore aliases */ | |
1505 | if (u->id != k) | |
1506 | continue; | |
1507 | ||
1508 | unit_catchup(u); | |
1509 | } | |
1510 | } | |
1511 | ||
9ff1a6f1 | 1512 | static void manager_distribute_fds(Manager *m, FDSet *fds) { |
9588bc32 | 1513 | Iterator i; |
9ff1a6f1 | 1514 | Unit *u; |
9588bc32 LP |
1515 | |
1516 | assert(m); | |
1517 | ||
1518 | HASHMAP_FOREACH(u, m->units, i) { | |
1519 | ||
1520 | if (fdset_size(fds) <= 0) | |
1521 | break; | |
1522 | ||
9ff1a6f1 LP |
1523 | if (!UNIT_VTABLE(u)->distribute_fds) |
1524 | continue; | |
9588bc32 | 1525 | |
9ff1a6f1 LP |
1526 | UNIT_VTABLE(u)->distribute_fds(u, fds); |
1527 | } | |
9588bc32 LP |
1528 | } |
1529 | ||
8559b3b7 LP |
1530 | static bool manager_dbus_is_running(Manager *m, bool deserialized) { |
1531 | Unit *u; | |
1532 | ||
1533 | assert(m); | |
1534 | ||
1535 | /* This checks whether the dbus instance we are supposed to expose our APIs on is up. We check both the socket | |
1536 | * and the service unit. If the 'deserialized' parameter is true we'll check the deserialized state of the unit | |
1537 | * rather than the current one. */ | |
1538 | ||
638cece4 | 1539 | if (MANAGER_IS_TEST_RUN(m)) |
8559b3b7 LP |
1540 | return false; |
1541 | ||
8559b3b7 LP |
1542 | u = manager_get_unit(m, SPECIAL_DBUS_SOCKET); |
1543 | if (!u) | |
1544 | return false; | |
1545 | if ((deserialized ? SOCKET(u)->deserialized_state : SOCKET(u)->state) != SOCKET_RUNNING) | |
1546 | return false; | |
1547 | ||
1548 | u = manager_get_unit(m, SPECIAL_DBUS_SERVICE); | |
1549 | if (!u) | |
1550 | return false; | |
1551 | if (!IN_SET((deserialized ? SERVICE(u)->deserialized_state : SERVICE(u)->state), SERVICE_RUNNING, SERVICE_RELOAD)) | |
1552 | return false; | |
1553 | ||
1554 | return true; | |
1555 | } | |
1556 | ||
9d4c195c LP |
1557 | static void manager_setup_bus(Manager *m) { |
1558 | assert(m); | |
1559 | ||
1560 | /* Let's set up our private bus connection now, unconditionally */ | |
1561 | (void) bus_init_private(m); | |
1562 | ||
1563 | /* If we are in --user mode also connect to the system bus now */ | |
1564 | if (MANAGER_IS_USER(m)) | |
1565 | (void) bus_init_system(m); | |
1566 | ||
1567 | /* Let's connect to the bus now, but only if the unit is supposed to be up */ | |
1568 | if (manager_dbus_is_running(m, MANAGER_IS_RELOADING(m))) { | |
1569 | (void) bus_init_api(m); | |
1570 | ||
1571 | if (MANAGER_IS_SYSTEM(m)) | |
1572 | (void) bus_init_system(m); | |
1573 | } | |
1574 | } | |
1575 | ||
159f1e76 LP |
1576 | static void manager_preset_all(Manager *m) { |
1577 | int r; | |
1578 | ||
1579 | assert(m); | |
1580 | ||
1581 | if (m->first_boot <= 0) | |
1582 | return; | |
1583 | ||
1584 | if (!MANAGER_IS_SYSTEM(m)) | |
1585 | return; | |
1586 | ||
638cece4 | 1587 | if (MANAGER_IS_TEST_RUN(m)) |
159f1e76 LP |
1588 | return; |
1589 | ||
1590 | /* If this is the first boot, and we are in the host system, then preset everything */ | |
1591 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, 0, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, NULL, 0); | |
1592 | if (r < 0) | |
1593 | log_full_errno(r == -EEXIST ? LOG_NOTICE : LOG_WARNING, r, | |
1594 | "Failed to populate /etc with preset unit settings, ignoring: %m"); | |
1595 | else | |
1596 | log_info("Populated /etc with preset unit settings."); | |
1597 | } | |
1598 | ||
5197be06 LP |
1599 | static void manager_vacuum(Manager *m) { |
1600 | assert(m); | |
1601 | ||
1602 | /* Release any dynamic users no longer referenced */ | |
1603 | dynamic_user_vacuum(m, true); | |
1604 | ||
1605 | /* Release any references to UIDs/GIDs no longer referenced, and destroy any IPC owned by them */ | |
1606 | manager_vacuum_uid_refs(m); | |
1607 | manager_vacuum_gid_refs(m); | |
1608 | ||
1609 | /* Release any runtimes no longer referenced */ | |
1610 | exec_runtime_vacuum(m); | |
1611 | } | |
1612 | ||
5ce5e1ad LP |
1613 | static void manager_ready(Manager *m) { |
1614 | assert(m); | |
1615 | ||
1616 | /* After having loaded everything, do the final round of catching up with what might have changed */ | |
1617 | ||
1618 | m->objective = MANAGER_OK; /* Tell everyone we are up now */ | |
1619 | ||
1620 | /* It might be safe to log to the journal now and connect to dbus */ | |
1621 | manager_recheck_journal(m); | |
1622 | manager_recheck_dbus(m); | |
1623 | ||
5ce5e1ad LP |
1624 | /* Let's finally catch up with any changes that took place while we were reloading/reexecing */ |
1625 | manager_catchup(m); | |
c6e892bc YW |
1626 | |
1627 | m->honor_device_enumeration = true; | |
5ce5e1ad LP |
1628 | } |
1629 | ||
d147e2b6 ZJS |
1630 | static Manager* manager_reloading_start(Manager *m) { |
1631 | m->n_reloading++; | |
1632 | return m; | |
1633 | } | |
1634 | static void manager_reloading_stopp(Manager **m) { | |
1635 | if (*m) { | |
1636 | assert((*m)->n_reloading > 0); | |
1637 | (*m)->n_reloading--; | |
1638 | } | |
1639 | } | |
1640 | ||
a16e1123 | 1641 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { |
17f01ace | 1642 | int r; |
a16e1123 LP |
1643 | |
1644 | assert(m); | |
1645 | ||
a1f31f47 ZJS |
1646 | /* If we are running in test mode, we still want to run the generators, |
1647 | * but we should not touch the real generator directories. */ | |
1648 | r = lookup_paths_init(&m->lookup_paths, m->unit_file_scope, | |
638cece4 | 1649 | MANAGER_IS_TEST_RUN(m) ? LOOKUP_PATHS_TEMPORARY_GENERATED : 0, |
a1f31f47 | 1650 | NULL); |
e801700e | 1651 | if (r < 0) |
572986ca | 1652 | return log_error_errno(r, "Failed to initialize path lookup table: %m"); |
5a1e9937 | 1653 | |
d4ee7bd8 | 1654 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_GENERATORS_START)); |
eb523bfb LP |
1655 | r = manager_run_environment_generators(m); |
1656 | if (r >= 0) | |
1657 | r = manager_run_generators(m); | |
d4ee7bd8 | 1658 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_GENERATORS_FINISH)); |
07719a21 LP |
1659 | if (r < 0) |
1660 | return r; | |
1661 | ||
159f1e76 | 1662 | manager_preset_all(m); |
572986ca | 1663 | |
581fef8d | 1664 | lookup_paths_log(&m->lookup_paths); |
572986ca | 1665 | |
4df7d537 ZJS |
1666 | { |
1667 | /* This block is (optionally) done with the reloading counter bumped */ | |
1668 | _cleanup_(manager_reloading_stopp) Manager *reloading = NULL; | |
1669 | ||
1670 | /* If we will deserialize make sure that during enumeration this is already known, so we increase the | |
1671 | * counter here already */ | |
1672 | if (serialization) | |
1673 | reloading = manager_reloading_start(m); | |
1674 | ||
1675 | /* First, enumerate what we can from all config files */ | |
1676 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_UNITS_LOAD_START)); | |
1677 | manager_enumerate_perpetual(m); | |
1678 | manager_enumerate(m); | |
1679 | dual_timestamp_get(m->timestamps + manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_UNITS_LOAD_FINISH)); | |
1680 | ||
1681 | /* Second, deserialize if there is something to deserialize */ | |
1682 | if (serialization) { | |
1683 | r = manager_deserialize(m, serialization, fds); | |
1684 | if (r < 0) | |
1685 | return log_error_errno(r, "Deserialization failed: %m"); | |
1686 | } | |
01e10de3 | 1687 | |
4df7d537 ZJS |
1688 | /* Any fds left? Find some unit which wants them. This is useful to allow container managers to pass |
1689 | * some file descriptors to us pre-initialized. This enables socket-based activation of entire | |
1690 | * containers. */ | |
1691 | manager_distribute_fds(m, fds); | |
d86f9d52 | 1692 | |
4df7d537 ZJS |
1693 | /* We might have deserialized the notify fd, but if we didn't then let's create the bus now */ |
1694 | r = manager_setup_notify(m); | |
1695 | if (r < 0) | |
1696 | /* No sense to continue without notifications, our children would fail anyway. */ | |
1697 | return r; | |
d8fdc620 | 1698 | |
4df7d537 ZJS |
1699 | r = manager_setup_cgroups_agent(m); |
1700 | if (r < 0) | |
1701 | /* Likewise, no sense to continue without empty cgroup notifications. */ | |
1702 | return r; | |
00d9ef85 | 1703 | |
4df7d537 ZJS |
1704 | r = manager_setup_user_lookup_fd(m); |
1705 | if (r < 0) | |
1706 | /* This shouldn't fail, except if things are really broken. */ | |
1707 | return r; | |
8559b3b7 | 1708 | |
4df7d537 ZJS |
1709 | /* Connect to the bus if we are good for it */ |
1710 | manager_setup_bus(m); | |
e3dd987c | 1711 | |
5238e957 | 1712 | /* Now that we are connected to all possible buses, let's deserialize who is tracking us. */ |
4df7d537 ZJS |
1713 | r = bus_track_coldplug(m, &m->subscribed, false, m->deserialized_subscribed); |
1714 | if (r < 0) | |
1715 | log_warning_errno(r, "Failed to deserialized tracked clients, ignoring: %m"); | |
1716 | m->deserialized_subscribed = strv_free(m->deserialized_subscribed); | |
a16e1123 | 1717 | |
19d22d43 LP |
1718 | r = manager_varlink_init(m); |
1719 | if (r < 0) | |
1720 | log_warning_errno(r, "Failed to set up Varlink server, ignoring: %m"); | |
1721 | ||
4df7d537 ZJS |
1722 | /* Third, fire things up! */ |
1723 | manager_coldplug(m); | |
3ad2afb6 | 1724 | |
4df7d537 ZJS |
1725 | /* Clean up runtime objects */ |
1726 | manager_vacuum(m); | |
71445ae7 | 1727 | |
4df7d537 ZJS |
1728 | if (serialization) |
1729 | /* Let's wait for the UnitNew/JobNew messages being sent, before we notify that the | |
1730 | * reload is finished */ | |
1731 | m->send_reloading_done = true; | |
9f611ad8 LP |
1732 | } |
1733 | ||
5ce5e1ad | 1734 | manager_ready(m); |
f0831ed2 | 1735 | |
17f01ace | 1736 | return 0; |
f50e0a01 LP |
1737 | } |
1738 | ||
50cbaba4 LP |
1739 | int manager_add_job( |
1740 | Manager *m, | |
1741 | JobType type, | |
1742 | Unit *unit, | |
1743 | JobMode mode, | |
1744 | Set *affected_jobs, | |
1745 | sd_bus_error *error, | |
1746 | Job **ret) { | |
1747 | ||
7527cb52 | 1748 | Transaction *tr; |
50cbaba4 | 1749 | int r; |
e5b5ae50 LP |
1750 | |
1751 | assert(m); | |
1752 | assert(type < _JOB_TYPE_MAX); | |
87f0e418 | 1753 | assert(unit); |
e5b5ae50 | 1754 | assert(mode < _JOB_MODE_MAX); |
60918275 | 1755 | |
7358dc02 | 1756 | if (mode == JOB_ISOLATE && type != JOB_START) |
50cbaba4 | 1757 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start."); |
c497c7a9 | 1758 | |
7358dc02 | 1759 | if (mode == JOB_ISOLATE && !unit->allow_isolate) |
50cbaba4 | 1760 | return sd_bus_error_setf(error, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); |
2528a7a6 | 1761 | |
1f0f9f21 KK |
1762 | if (mode == JOB_TRIGGERING && type != JOB_STOP) |
1763 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "--job-mode=triggering is only valid for stop."); | |
1764 | ||
f2341e0a | 1765 | log_unit_debug(unit, "Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); |
9f04bd52 | 1766 | |
c6497ccb | 1767 | type = job_type_collapse(type, unit); |
e0209d83 | 1768 | |
23ade460 | 1769 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); |
7527cb52 MS |
1770 | if (!tr) |
1771 | return -ENOMEM; | |
11dd41ce | 1772 | |
4bd29fe5 | 1773 | r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, false, |
3742095b | 1774 | IN_SET(mode, JOB_IGNORE_DEPENDENCIES, JOB_IGNORE_REQUIREMENTS), |
50cbaba4 | 1775 | mode == JOB_IGNORE_DEPENDENCIES, error); |
7527cb52 MS |
1776 | if (r < 0) |
1777 | goto tr_abort; | |
c497c7a9 | 1778 | |
7527cb52 MS |
1779 | if (mode == JOB_ISOLATE) { |
1780 | r = transaction_add_isolate_jobs(tr, m); | |
1781 | if (r < 0) | |
1782 | goto tr_abort; | |
1783 | } | |
1784 | ||
1f0f9f21 KK |
1785 | if (mode == JOB_TRIGGERING) { |
1786 | r = transaction_add_triggering_jobs(tr, unit); | |
1787 | if (r < 0) | |
1788 | goto tr_abort; | |
1789 | } | |
1790 | ||
50cbaba4 | 1791 | r = transaction_activate(tr, m, mode, affected_jobs, error); |
7527cb52 MS |
1792 | if (r < 0) |
1793 | goto tr_abort; | |
e5b5ae50 | 1794 | |
f2341e0a | 1795 | log_unit_debug(unit, |
66870f90 ZJS |
1796 | "Enqueued job %s/%s as %u", unit->id, |
1797 | job_type_to_string(type), (unsigned) tr->anchor_job->id); | |
f50e0a01 | 1798 | |
50cbaba4 LP |
1799 | if (ret) |
1800 | *ret = tr->anchor_job; | |
60918275 | 1801 | |
7527cb52 | 1802 | transaction_free(tr); |
e5b5ae50 | 1803 | return 0; |
7527cb52 MS |
1804 | |
1805 | tr_abort: | |
1806 | transaction_abort(tr); | |
1807 | transaction_free(tr); | |
1808 | return r; | |
e5b5ae50 | 1809 | } |
60918275 | 1810 | |
50cbaba4 | 1811 | 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 | 1812 | Unit *unit = NULL; /* just to appease gcc, initialization is not really necessary */ |
28247076 LP |
1813 | int r; |
1814 | ||
1815 | assert(m); | |
1816 | assert(type < _JOB_TYPE_MAX); | |
1817 | assert(name); | |
1818 | assert(mode < _JOB_MODE_MAX); | |
1819 | ||
c3090674 LP |
1820 | r = manager_load_unit(m, name, NULL, NULL, &unit); |
1821 | if (r < 0) | |
28247076 | 1822 | return r; |
4440b27d | 1823 | assert(unit); |
28247076 | 1824 | |
50cbaba4 | 1825 | return manager_add_job(m, type, unit, mode, affected_jobs, e, ret); |
53f18416 LP |
1826 | } |
1827 | ||
50cbaba4 | 1828 | int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Set *affected_jobs, Job **ret) { |
4afd3348 | 1829 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
53f18416 LP |
1830 | int r; |
1831 | ||
1832 | assert(m); | |
1833 | assert(type < _JOB_TYPE_MAX); | |
1834 | assert(name); | |
1835 | assert(mode < _JOB_MODE_MAX); | |
1836 | ||
50cbaba4 | 1837 | r = manager_add_job_by_name(m, type, name, mode, affected_jobs, &error, ret); |
53f18416 LP |
1838 | if (r < 0) |
1839 | return log_warning_errno(r, "Failed to enqueue %s job for %s: %s", job_mode_to_string(mode), name, bus_error_message(&error, r)); | |
1840 | ||
1841 | return r; | |
28247076 LP |
1842 | } |
1843 | ||
15d167f8 JW |
1844 | int manager_propagate_reload(Manager *m, Unit *unit, JobMode mode, sd_bus_error *e) { |
1845 | int r; | |
1846 | Transaction *tr; | |
1847 | ||
1848 | assert(m); | |
1849 | assert(unit); | |
1850 | assert(mode < _JOB_MODE_MAX); | |
1851 | assert(mode != JOB_ISOLATE); /* Isolate is only valid for start */ | |
1852 | ||
1853 | tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY); | |
1854 | if (!tr) | |
1855 | return -ENOMEM; | |
1856 | ||
1857 | /* We need an anchor job */ | |
1858 | r = transaction_add_job_and_dependencies(tr, JOB_NOP, unit, NULL, false, false, true, true, e); | |
1859 | if (r < 0) | |
1860 | goto tr_abort; | |
1861 | ||
1862 | /* Failure in adding individual dependencies is ignored, so this always succeeds. */ | |
1863 | transaction_add_propagate_reload_jobs(tr, unit, tr->anchor_job, mode == JOB_IGNORE_DEPENDENCIES, e); | |
1864 | ||
50cbaba4 | 1865 | r = transaction_activate(tr, m, mode, NULL, e); |
15d167f8 JW |
1866 | if (r < 0) |
1867 | goto tr_abort; | |
1868 | ||
1869 | transaction_free(tr); | |
1870 | return 0; | |
1871 | ||
1872 | tr_abort: | |
1873 | transaction_abort(tr); | |
1874 | transaction_free(tr); | |
1875 | return r; | |
1876 | } | |
1877 | ||
60918275 LP |
1878 | Job *manager_get_job(Manager *m, uint32_t id) { |
1879 | assert(m); | |
1880 | ||
1881 | return hashmap_get(m->jobs, UINT32_TO_PTR(id)); | |
1882 | } | |
1883 | ||
87f0e418 | 1884 | Unit *manager_get_unit(Manager *m, const char *name) { |
60918275 LP |
1885 | assert(m); |
1886 | assert(name); | |
1887 | ||
87f0e418 | 1888 | return hashmap_get(m->units, name); |
60918275 LP |
1889 | } |
1890 | ||
19496554 MS |
1891 | static int manager_dispatch_target_deps_queue(Manager *m) { |
1892 | Unit *u; | |
1893 | unsigned k; | |
1894 | int r = 0; | |
1895 | ||
1896 | static const UnitDependency deps[] = { | |
1897 | UNIT_REQUIRED_BY, | |
1898 | UNIT_REQUISITE_OF, | |
1899 | UNIT_WANTED_BY, | |
1900 | UNIT_BOUND_BY | |
1901 | }; | |
1902 | ||
1903 | assert(m); | |
1904 | ||
1905 | while ((u = m->target_deps_queue)) { | |
1906 | assert(u->in_target_deps_queue); | |
1907 | ||
1908 | LIST_REMOVE(target_deps_queue, u->manager->target_deps_queue, u); | |
1909 | u->in_target_deps_queue = false; | |
1910 | ||
1911 | for (k = 0; k < ELEMENTSOF(deps); k++) { | |
1912 | Unit *target; | |
1913 | Iterator i; | |
1914 | void *v; | |
1915 | ||
1916 | HASHMAP_FOREACH_KEY(v, target, u->dependencies[deps[k]], i) { | |
1917 | r = unit_add_default_target_dependency(u, target); | |
1918 | if (r < 0) | |
1919 | return r; | |
1920 | } | |
1921 | } | |
1922 | } | |
1923 | ||
1924 | return r; | |
1925 | } | |
1926 | ||
c1e1601e | 1927 | unsigned manager_dispatch_load_queue(Manager *m) { |
595ed347 | 1928 | Unit *u; |
c1e1601e | 1929 | unsigned n = 0; |
60918275 LP |
1930 | |
1931 | assert(m); | |
1932 | ||
223dabab LP |
1933 | /* Make sure we are not run recursively */ |
1934 | if (m->dispatching_load_queue) | |
c1e1601e | 1935 | return 0; |
223dabab LP |
1936 | |
1937 | m->dispatching_load_queue = true; | |
1938 | ||
87f0e418 | 1939 | /* Dispatches the load queue. Takes a unit from the queue and |
60918275 LP |
1940 | * tries to load its data until the queue is empty */ |
1941 | ||
595ed347 MS |
1942 | while ((u = m->load_queue)) { |
1943 | assert(u->in_load_queue); | |
034c6ed7 | 1944 | |
595ed347 | 1945 | unit_load(u); |
c1e1601e | 1946 | n++; |
60918275 LP |
1947 | } |
1948 | ||
223dabab | 1949 | m->dispatching_load_queue = false; |
19496554 MS |
1950 | |
1951 | /* Dispatch the units waiting for their target dependencies to be added now, as all targets that we know about | |
1952 | * should be loaded and have aliases resolved */ | |
1953 | (void) manager_dispatch_target_deps_queue(m); | |
1954 | ||
c1e1601e | 1955 | return n; |
60918275 LP |
1956 | } |
1957 | ||
c2756a68 LP |
1958 | int manager_load_unit_prepare( |
1959 | Manager *m, | |
1960 | const char *name, | |
1961 | const char *path, | |
718db961 | 1962 | sd_bus_error *e, |
c2756a68 LP |
1963 | Unit **_ret) { |
1964 | ||
dc409696 | 1965 | _cleanup_(unit_freep) Unit *cleanup_ret = NULL; |
87f0e418 | 1966 | Unit *ret; |
7d17cfbc | 1967 | UnitType t; |
60918275 LP |
1968 | int r; |
1969 | ||
1970 | assert(m); | |
9e2f7c11 | 1971 | assert(name || path); |
7a6a095a | 1972 | assert(_ret); |
60918275 | 1973 | |
db06e3b6 LP |
1974 | /* This will prepare the unit for loading, but not actually |
1975 | * load anything from disk. */ | |
0301abf4 | 1976 | |
718db961 LP |
1977 | if (path && !is_path(path)) |
1978 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); | |
9e2f7c11 LP |
1979 | |
1980 | if (!name) | |
2b6bf07d | 1981 | name = basename(path); |
9e2f7c11 | 1982 | |
7d17cfbc MS |
1983 | t = unit_name_to_type(name); |
1984 | ||
5d512d54 LN |
1985 | if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) { |
1986 | if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) | |
1987 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is missing the instance name.", name); | |
1988 | ||
718db961 | 1989 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name); |
5d512d54 | 1990 | } |
60918275 | 1991 | |
7d17cfbc MS |
1992 | ret = manager_get_unit(m, name); |
1993 | if (ret) { | |
034c6ed7 | 1994 | *_ret = ret; |
413d6313 | 1995 | return 1; |
034c6ed7 | 1996 | } |
60918275 | 1997 | |
dc409696 | 1998 | ret = cleanup_ret = unit_new(m, unit_vtable[t]->object_size); |
7d17cfbc | 1999 | if (!ret) |
60918275 LP |
2000 | return -ENOMEM; |
2001 | ||
7d17cfbc | 2002 | if (path) { |
ac155bb8 | 2003 | ret->fragment_path = strdup(path); |
dc409696 | 2004 | if (!ret->fragment_path) |
0301abf4 | 2005 | return -ENOMEM; |
7d17cfbc | 2006 | } |
0301abf4 | 2007 | |
1058cbf2 | 2008 | r = unit_add_name(ret, name); |
dc409696 | 2009 | if (r < 0) |
1ffba6fe | 2010 | return r; |
60918275 | 2011 | |
87f0e418 | 2012 | unit_add_to_load_queue(ret); |
c1e1601e | 2013 | unit_add_to_dbus_queue(ret); |
949061f0 | 2014 | unit_add_to_gc_queue(ret); |
c1e1601e | 2015 | |
7a6a095a | 2016 | *_ret = ret; |
dc409696 | 2017 | cleanup_ret = NULL; |
db06e3b6 LP |
2018 | |
2019 | return 0; | |
2020 | } | |
2021 | ||
c2756a68 LP |
2022 | int manager_load_unit( |
2023 | Manager *m, | |
2024 | const char *name, | |
2025 | const char *path, | |
718db961 | 2026 | sd_bus_error *e, |
c2756a68 LP |
2027 | Unit **_ret) { |
2028 | ||
db06e3b6 LP |
2029 | int r; |
2030 | ||
2031 | assert(m); | |
7a6a095a | 2032 | assert(_ret); |
db06e3b6 LP |
2033 | |
2034 | /* This will load the service information files, but not actually | |
2035 | * start any services or anything. */ | |
2036 | ||
c3090674 LP |
2037 | r = manager_load_unit_prepare(m, name, path, e, _ret); |
2038 | if (r != 0) | |
db06e3b6 LP |
2039 | return r; |
2040 | ||
f50e0a01 | 2041 | manager_dispatch_load_queue(m); |
60918275 | 2042 | |
7a6a095a | 2043 | *_ret = unit_follow_merge(*_ret); |
4109ede7 ZJS |
2044 | return 0; |
2045 | } | |
2046 | ||
2047 | int manager_load_startable_unit_or_warn( | |
2048 | Manager *m, | |
2049 | const char *name, | |
2050 | const char *path, | |
2051 | Unit **ret) { | |
2052 | ||
2053 | /* Load a unit, make sure it loaded fully and is not masked. */ | |
2054 | ||
2055 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
2056 | Unit *unit; | |
2057 | int r; | |
2058 | ||
2059 | r = manager_load_unit(m, name, path, &error, &unit); | |
2060 | if (r < 0) | |
2061 | return log_error_errno(r, "Failed to load %s %s: %s", | |
8ace1db7 | 2062 | name ? "unit" : "unit file", name ?: path, |
4109ede7 | 2063 | bus_error_message(&error, r)); |
8ace1db7 LP |
2064 | |
2065 | r = bus_unit_validate_load_state(unit, &error); | |
2066 | if (r < 0) | |
2067 | return log_error_errno(r, "%s", bus_error_message(&error, r)); | |
9e2f7c11 | 2068 | |
4109ede7 | 2069 | *ret = unit; |
60918275 LP |
2070 | return 0; |
2071 | } | |
a66d02c3 | 2072 | |
cea8e32e | 2073 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 2074 | Iterator i; |
a66d02c3 LP |
2075 | Job *j; |
2076 | ||
2077 | assert(s); | |
2078 | assert(f); | |
2079 | ||
034c6ed7 | 2080 | HASHMAP_FOREACH(j, s->jobs, i) |
cea8e32e | 2081 | job_dump(j, f, prefix); |
a66d02c3 LP |
2082 | } |
2083 | ||
87f0e418 | 2084 | void manager_dump_units(Manager *s, FILE *f, const char *prefix) { |
034c6ed7 | 2085 | Iterator i; |
87f0e418 | 2086 | Unit *u; |
11dd41ce | 2087 | const char *t; |
a66d02c3 LP |
2088 | |
2089 | assert(s); | |
2090 | assert(f); | |
2091 | ||
87f0e418 | 2092 | HASHMAP_FOREACH_KEY(u, t, s->units, i) |
ac155bb8 | 2093 | if (u->id == t) |
87f0e418 | 2094 | unit_dump(u, f, prefix); |
a66d02c3 | 2095 | } |
7fad411c | 2096 | |
ad75b9e7 LP |
2097 | void manager_dump(Manager *m, FILE *f, const char *prefix) { |
2098 | ManagerTimestamp q; | |
2099 | ||
2100 | assert(m); | |
2101 | assert(f); | |
2102 | ||
2103 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { | |
34541295 ZJS |
2104 | const dual_timestamp *t = m->timestamps + q; |
2105 | char buf[CONST_MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)]; | |
ad75b9e7 | 2106 | |
34541295 | 2107 | if (dual_timestamp_is_set(t)) |
ad75b9e7 LP |
2108 | fprintf(f, "%sTimestamp %s: %s\n", |
2109 | strempty(prefix), | |
2110 | manager_timestamp_to_string(q), | |
34541295 ZJS |
2111 | timestamp_is_set(t->realtime) ? format_timestamp(buf, sizeof buf, t->realtime) : |
2112 | format_timespan(buf, sizeof buf, t->monotonic, 1)); | |
ad75b9e7 LP |
2113 | } |
2114 | ||
2115 | manager_dump_units(m, f, prefix); | |
2116 | manager_dump_jobs(m, f, prefix); | |
2117 | } | |
2118 | ||
713f6f90 LP |
2119 | int manager_get_dump_string(Manager *m, char **ret) { |
2120 | _cleanup_free_ char *dump = NULL; | |
2121 | _cleanup_fclose_ FILE *f = NULL; | |
2122 | size_t size; | |
2123 | int r; | |
2124 | ||
2125 | assert(m); | |
2126 | assert(ret); | |
2127 | ||
2fe21124 | 2128 | f = open_memstream_unlocked(&dump, &size); |
713f6f90 LP |
2129 | if (!f) |
2130 | return -errno; | |
2131 | ||
713f6f90 LP |
2132 | manager_dump(m, f, NULL); |
2133 | ||
2134 | r = fflush_and_check(f); | |
2135 | if (r < 0) | |
2136 | return r; | |
2137 | ||
2138 | f = safe_fclose(f); | |
2139 | ||
1cc6c93a | 2140 | *ret = TAKE_PTR(dump); |
713f6f90 LP |
2141 | |
2142 | return 0; | |
2143 | } | |
2144 | ||
7fad411c LP |
2145 | void manager_clear_jobs(Manager *m) { |
2146 | Job *j; | |
2147 | ||
2148 | assert(m); | |
2149 | ||
7fad411c | 2150 | while ((j = hashmap_first(m->jobs))) |
5273510e | 2151 | /* No need to recurse. We're cancelling all jobs. */ |
833f92ad | 2152 | job_finish_and_invalidate(j, JOB_CANCELED, false, false); |
7fad411c | 2153 | } |
83c60c9f | 2154 | |
f75f613d FB |
2155 | void manager_unwatch_pid(Manager *m, pid_t pid) { |
2156 | assert(m); | |
2157 | ||
2158 | /* First let's drop the unit keyed as "pid". */ | |
2159 | (void) hashmap_remove(m->watch_pids, PID_TO_PTR(pid)); | |
2160 | ||
2161 | /* Then, let's also drop the array keyed by -pid. */ | |
2162 | free(hashmap_remove(m->watch_pids, PID_TO_PTR(-pid))); | |
2163 | } | |
2164 | ||
752b5905 LP |
2165 | static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) { |
2166 | Manager *m = userdata; | |
83c60c9f | 2167 | Job *j; |
034c6ed7 | 2168 | |
752b5905 LP |
2169 | assert(source); |
2170 | assert(m); | |
9152c765 | 2171 | |
da8e1782 | 2172 | while ((j = prioq_peek(m->run_queue))) { |
ac1135be | 2173 | assert(j->installed); |
034c6ed7 LP |
2174 | assert(j->in_run_queue); |
2175 | ||
6e64994d | 2176 | (void) job_run_and_invalidate(j); |
9152c765 | 2177 | } |
034c6ed7 | 2178 | |
a0b64226 | 2179 | if (m->n_running_jobs > 0) |
03b717a3 MS |
2180 | manager_watch_jobs_in_progress(m); |
2181 | ||
31a7eb86 ZJS |
2182 | if (m->n_on_console > 0) |
2183 | manager_watch_idle_pipe(m); | |
2184 | ||
752b5905 | 2185 | return 1; |
c1e1601e LP |
2186 | } |
2187 | ||
9588bc32 | 2188 | static unsigned manager_dispatch_dbus_queue(Manager *m) { |
e0a08581 | 2189 | unsigned n = 0, budget; |
595ed347 | 2190 | Unit *u; |
e0a08581 | 2191 | Job *j; |
c1e1601e LP |
2192 | |
2193 | assert(m); | |
2194 | ||
b8d381c4 LP |
2195 | /* When we are reloading, let's not wait with generating signals, since we need to exit the manager as quickly |
2196 | * as we can. There's no point in throttling generation of signals in that case. */ | |
2197 | if (MANAGER_IS_RELOADING(m) || m->send_reloading_done || m->pending_reload_message) | |
2198 | budget = (unsigned) -1; /* infinite budget in this case */ | |
2199 | else { | |
2200 | /* Anything to do at all? */ | |
2201 | if (!m->dbus_unit_queue && !m->dbus_job_queue) | |
2202 | return 0; | |
2203 | ||
2204 | /* Do we have overly many messages queued at the moment? If so, let's not enqueue more on top, let's | |
2205 | * sit this cycle out, and process things in a later cycle when the queues got a bit emptier. */ | |
2206 | if (manager_bus_n_queued_write(m) > MANAGER_BUS_BUSY_THRESHOLD) | |
2207 | return 0; | |
2208 | ||
2209 | /* Only process a certain number of units/jobs per event loop iteration. Even if the bus queue wasn't | |
2210 | * overly full before this call we shouldn't increase it in size too wildly in one step, and we | |
2211 | * shouldn't monopolize CPU time with generating these messages. Note the difference in counting of | |
2212 | * this "budget" and the "threshold" above: the "budget" is decreased only once per generated message, | |
5238e957 BB |
2213 | * regardless how many buses/direct connections it is enqueued on, while the "threshold" is applied to |
2214 | * each queued instance of bus message, i.e. if the same message is enqueued to five buses/direct | |
b8d381c4 LP |
2215 | * connections it will be counted five times. This difference in counting ("references" |
2216 | * vs. "instances") is primarily a result of the fact that it's easier to implement it this way, | |
2217 | * however it also reflects the thinking that the "threshold" should put a limit on used queue memory, | |
2218 | * i.e. space, while the "budget" should put a limit on time. Also note that the "threshold" is | |
2219 | * currently chosen much higher than the "budget". */ | |
2220 | budget = MANAGER_BUS_MESSAGE_BUDGET; | |
2221 | } | |
e0a08581 | 2222 | |
b8d381c4 | 2223 | while (budget != 0 && (u = m->dbus_unit_queue)) { |
e0a08581 | 2224 | |
595ed347 | 2225 | assert(u->in_dbus_queue); |
c1e1601e | 2226 | |
595ed347 | 2227 | bus_unit_send_change_signal(u); |
b8d381c4 LP |
2228 | n++; |
2229 | ||
2230 | if (budget != (unsigned) -1) | |
2231 | budget--; | |
c1e1601e LP |
2232 | } |
2233 | ||
b8d381c4 | 2234 | while (budget != 0 && (j = m->dbus_job_queue)) { |
c1e1601e LP |
2235 | assert(j->in_dbus_queue); |
2236 | ||
2237 | bus_job_send_change_signal(j); | |
b8d381c4 LP |
2238 | n++; |
2239 | ||
2240 | if (budget != (unsigned) -1) | |
2241 | budget--; | |
c1e1601e LP |
2242 | } |
2243 | ||
b8d381c4 | 2244 | if (m->send_reloading_done) { |
71445ae7 | 2245 | m->send_reloading_done = false; |
718db961 | 2246 | bus_manager_send_reloading(m, false); |
b8d381c4 | 2247 | n++; |
71445ae7 LP |
2248 | } |
2249 | ||
b8d381c4 | 2250 | if (m->pending_reload_message) { |
209de525 | 2251 | bus_send_pending_reload_message(m); |
e0a08581 LP |
2252 | n++; |
2253 | } | |
718db961 | 2254 | |
c1e1601e | 2255 | return n; |
9152c765 LP |
2256 | } |
2257 | ||
d8fdc620 LP |
2258 | static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2259 | Manager *m = userdata; | |
60473f0c | 2260 | char buf[PATH_MAX]; |
d8fdc620 LP |
2261 | ssize_t n; |
2262 | ||
2263 | n = recv(fd, buf, sizeof(buf), 0); | |
2264 | if (n < 0) | |
2265 | return log_error_errno(errno, "Failed to read cgroups agent message: %m"); | |
2266 | if (n == 0) { | |
2267 | log_error("Got zero-length cgroups agent message, ignoring."); | |
2268 | return 0; | |
2269 | } | |
2270 | if ((size_t) n >= sizeof(buf)) { | |
2271 | log_error("Got overly long cgroups agent message, ignoring."); | |
2272 | return 0; | |
2273 | } | |
2274 | ||
2275 | if (memchr(buf, 0, n)) { | |
2276 | log_error("Got cgroups agent message with embedded NUL byte, ignoring."); | |
2277 | return 0; | |
2278 | } | |
2279 | buf[n] = 0; | |
2280 | ||
2281 | manager_notify_cgroup_empty(m, buf); | |
d5f15326 | 2282 | (void) bus_forward_agent_released(m, buf); |
d8fdc620 LP |
2283 | |
2284 | return 0; | |
2285 | } | |
2286 | ||
db256aab LP |
2287 | static void manager_invoke_notify_message( |
2288 | Manager *m, | |
2289 | Unit *u, | |
2290 | const struct ucred *ucred, | |
2291 | const char *buf, | |
2292 | FDSet *fds) { | |
2293 | ||
5ba6985b LP |
2294 | assert(m); |
2295 | assert(u); | |
db256aab | 2296 | assert(ucred); |
5ba6985b | 2297 | assert(buf); |
5ba6985b | 2298 | |
62a76913 | 2299 | if (u->notifygen == m->notifygen) /* Already invoked on this same unit in this same iteration? */ |
5ba6985b | 2300 | return; |
62a76913 LP |
2301 | u->notifygen = m->notifygen; |
2302 | ||
2303 | if (UNIT_VTABLE(u)->notify_message) { | |
2304 | _cleanup_strv_free_ char **tags = NULL; | |
2305 | ||
2306 | tags = strv_split(buf, NEWLINE); | |
2307 | if (!tags) { | |
2308 | log_oom(); | |
2309 | return; | |
2310 | } | |
5ba6985b | 2311 | |
db256aab | 2312 | UNIT_VTABLE(u)->notify_message(u, ucred, tags, fds); |
62a76913 LP |
2313 | |
2314 | } else if (DEBUG_LOGGING) { | |
a86b7675 ZJS |
2315 | _cleanup_free_ char *x = NULL, *y = NULL; |
2316 | ||
da5fb861 | 2317 | x = ellipsize(buf, 20, 90); |
a86b7675 | 2318 | if (x) |
da5fb861 LP |
2319 | y = cescape(x); |
2320 | ||
a86b7675 ZJS |
2321 | log_unit_debug(u, "Got notification message \"%s\", ignoring.", strnull(y)); |
2322 | } | |
5ba6985b LP |
2323 | } |
2324 | ||
718db961 | 2325 | static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
3d0b8a55 | 2326 | |
b215b0ed | 2327 | _cleanup_fdset_free_ FDSet *fds = NULL; |
718db961 | 2328 | Manager *m = userdata; |
b215b0ed DH |
2329 | char buf[NOTIFY_BUFFER_MAX+1]; |
2330 | struct iovec iovec = { | |
2331 | .iov_base = buf, | |
2332 | .iov_len = sizeof(buf)-1, | |
2333 | }; | |
2334 | union { | |
2335 | struct cmsghdr cmsghdr; | |
2336 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
2337 | CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)]; | |
2338 | } control = {}; | |
2339 | struct msghdr msghdr = { | |
2340 | .msg_iov = &iovec, | |
2341 | .msg_iovlen = 1, | |
2342 | .msg_control = &control, | |
2343 | .msg_controllen = sizeof(control), | |
2344 | }; | |
2345 | ||
2346 | struct cmsghdr *cmsg; | |
2347 | struct ucred *ucred = NULL; | |
62a76913 LP |
2348 | _cleanup_free_ Unit **array_copy = NULL; |
2349 | Unit *u1, *u2, **array; | |
b215b0ed | 2350 | int r, *fd_array = NULL; |
da6053d0 | 2351 | size_t n_fds = 0; |
62a76913 | 2352 | bool found = false; |
8c47c732 LP |
2353 | ssize_t n; |
2354 | ||
2355 | assert(m); | |
718db961 LP |
2356 | assert(m->notify_fd == fd); |
2357 | ||
2358 | if (revents != EPOLLIN) { | |
2359 | log_warning("Got unexpected poll event for notify fd."); | |
2360 | return 0; | |
2361 | } | |
8c47c732 | 2362 | |
045a3d59 | 2363 | n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC|MSG_TRUNC); |
b215b0ed | 2364 | if (n < 0) { |
c55ae51e LP |
2365 | if (IN_SET(errno, EAGAIN, EINTR)) |
2366 | return 0; /* Spurious wakeup, try again */ | |
8c47c732 | 2367 | |
c55ae51e LP |
2368 | /* If this is any other, real error, then let's stop processing this socket. This of course means we |
2369 | * won't take notification messages anymore, but that's still better than busy looping around this: | |
2370 | * being woken up over and over again but being unable to actually read the message off the socket. */ | |
2371 | return log_error_errno(errno, "Failed to receive notification message: %m"); | |
b215b0ed | 2372 | } |
a354329f | 2373 | |
b215b0ed DH |
2374 | CMSG_FOREACH(cmsg, &msghdr) { |
2375 | if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { | |
a354329f | 2376 | |
b215b0ed DH |
2377 | fd_array = (int*) CMSG_DATA(cmsg); |
2378 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
a354329f | 2379 | |
b215b0ed DH |
2380 | } else if (cmsg->cmsg_level == SOL_SOCKET && |
2381 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
2382 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) { | |
a354329f | 2383 | |
b215b0ed | 2384 | ucred = (struct ucred*) CMSG_DATA(cmsg); |
a354329f | 2385 | } |
b215b0ed | 2386 | } |
a354329f | 2387 | |
b215b0ed DH |
2388 | if (n_fds > 0) { |
2389 | assert(fd_array); | |
a354329f | 2390 | |
b215b0ed DH |
2391 | r = fdset_new_array(&fds, fd_array, n_fds); |
2392 | if (r < 0) { | |
2393 | close_many(fd_array, n_fds); | |
9987750e FB |
2394 | log_oom(); |
2395 | return 0; | |
a354329f | 2396 | } |
b215b0ed | 2397 | } |
8c47c732 | 2398 | |
15e23e8c | 2399 | if (!ucred || !pid_is_valid(ucred->pid)) { |
b215b0ed DH |
2400 | log_warning("Received notify message without valid credentials. Ignoring."); |
2401 | return 0; | |
2402 | } | |
8c47c732 | 2403 | |
045a3d59 | 2404 | if ((size_t) n >= sizeof(buf) || (msghdr.msg_flags & MSG_TRUNC)) { |
b215b0ed DH |
2405 | log_warning("Received notify message exceeded maximum size. Ignoring."); |
2406 | return 0; | |
2407 | } | |
8c47c732 | 2408 | |
875ca88d LP |
2409 | /* As extra safety check, let's make sure the string we get doesn't contain embedded NUL bytes. We permit one |
2410 | * trailing NUL byte in the message, but don't expect it. */ | |
2411 | if (n > 1 && memchr(buf, 0, n-1)) { | |
2412 | log_warning("Received notify message with embedded NUL bytes. Ignoring."); | |
2413 | return 0; | |
2414 | } | |
2415 | ||
2416 | /* Make sure it's NUL-terminated. */ | |
b215b0ed | 2417 | buf[n] = 0; |
8c47c732 | 2418 | |
62a76913 LP |
2419 | /* Increase the generation counter used for filtering out duplicate unit invocations. */ |
2420 | m->notifygen++; | |
2421 | ||
2422 | /* Notify every unit that might be interested, which might be multiple. */ | |
b215b0ed | 2423 | u1 = manager_get_unit_by_pid_cgroup(m, ucred->pid); |
62a76913 LP |
2424 | u2 = hashmap_get(m->watch_pids, PID_TO_PTR(ucred->pid)); |
2425 | array = hashmap_get(m->watch_pids, PID_TO_PTR(-ucred->pid)); | |
2426 | if (array) { | |
2427 | size_t k = 0; | |
5ba6985b | 2428 | |
62a76913 LP |
2429 | while (array[k]) |
2430 | k++; | |
5ba6985b | 2431 | |
62a76913 LP |
2432 | array_copy = newdup(Unit*, array, k+1); |
2433 | if (!array_copy) | |
2434 | log_oom(); | |
2435 | } | |
2436 | /* And now invoke the per-unit callbacks. Note that manager_invoke_notify_message() will handle duplicate units | |
2437 | * make sure we only invoke each unit's handler once. */ | |
2438 | if (u1) { | |
2439 | manager_invoke_notify_message(m, u1, ucred, buf, fds); | |
2440 | found = true; | |
2441 | } | |
2442 | if (u2) { | |
2443 | manager_invoke_notify_message(m, u2, ucred, buf, fds); | |
2444 | found = true; | |
2445 | } | |
2446 | if (array_copy) | |
2447 | for (size_t i = 0; array_copy[i]; i++) { | |
2448 | manager_invoke_notify_message(m, array_copy[i], ucred, buf, fds); | |
2449 | found = true; | |
2450 | } | |
8c47c732 | 2451 | |
62a76913 LP |
2452 | if (!found) |
2453 | log_warning("Cannot find unit for notify message of PID "PID_FMT", ignoring.", ucred->pid); | |
a354329f | 2454 | |
b215b0ed | 2455 | if (fdset_size(fds) > 0) |
5fd2c135 | 2456 | log_warning("Got extra auxiliary fds with notification message, closing them."); |
8c47c732 LP |
2457 | |
2458 | return 0; | |
2459 | } | |
2460 | ||
62a76913 LP |
2461 | static void manager_invoke_sigchld_event( |
2462 | Manager *m, | |
2463 | Unit *u, | |
2464 | const siginfo_t *si) { | |
36f20ae3 | 2465 | |
5ba6985b LP |
2466 | assert(m); |
2467 | assert(u); | |
2468 | assert(si); | |
2469 | ||
62a76913 LP |
2470 | /* Already invoked the handler of this unit in this iteration? Then don't process this again */ |
2471 | if (u->sigchldgen == m->sigchldgen) | |
2472 | return; | |
2473 | u->sigchldgen = m->sigchldgen; | |
5ba6985b | 2474 | |
62a76913 | 2475 | log_unit_debug(u, "Child "PID_FMT" belongs to %s.", si->si_pid, u->id); |
5ba6985b | 2476 | unit_unwatch_pid(u, si->si_pid); |
e57051f5 | 2477 | |
62a76913 LP |
2478 | if (UNIT_VTABLE(u)->sigchld_event) |
2479 | UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status); | |
5ba6985b LP |
2480 | } |
2481 | ||
575b300b LP |
2482 | static int manager_dispatch_sigchld(sd_event_source *source, void *userdata) { |
2483 | Manager *m = userdata; | |
2484 | siginfo_t si = {}; | |
2485 | int r; | |
2486 | ||
2487 | assert(source); | |
9152c765 LP |
2488 | assert(m); |
2489 | ||
0a51b45c | 2490 | /* First we call waitid() for a PID and do not reap the zombie. That way we can still access /proc/$PID for it |
575b300b | 2491 | * while it is a zombie. */ |
9152c765 | 2492 | |
575b300b | 2493 | if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) { |
acbb0225 | 2494 | |
8afabc50 AJ |
2495 | if (errno != ECHILD) |
2496 | log_error_errno(errno, "Failed to peek for child with waitid(), ignoring: %m"); | |
acbb0225 | 2497 | |
8afabc50 | 2498 | goto turn_off; |
575b300b | 2499 | } |
4112df16 | 2500 | |
575b300b LP |
2501 | if (si.si_pid <= 0) |
2502 | goto turn_off; | |
2503 | ||
2504 | if (IN_SET(si.si_code, CLD_EXITED, CLD_KILLED, CLD_DUMPED)) { | |
62a76913 | 2505 | _cleanup_free_ Unit **array_copy = NULL; |
575b300b | 2506 | _cleanup_free_ char *name = NULL; |
62a76913 | 2507 | Unit *u1, *u2, **array; |
575b300b LP |
2508 | |
2509 | (void) get_process_comm(si.si_pid, &name); | |
2510 | ||
2511 | log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)", | |
2512 | si.si_pid, strna(name), | |
2513 | sigchld_code_to_string(si.si_code), | |
2514 | si.si_status, | |
2515 | strna(si.si_code == CLD_EXITED | |
2516 | ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL) | |
2517 | : signal_to_string(si.si_status))); | |
2518 | ||
62a76913 LP |
2519 | /* Increase the generation counter used for filtering out duplicate unit invocations */ |
2520 | m->sigchldgen++; | |
2521 | ||
2522 | /* And now figure out the unit this belongs to, it might be multiple... */ | |
575b300b | 2523 | u1 = manager_get_unit_by_pid_cgroup(m, si.si_pid); |
62a76913 LP |
2524 | u2 = hashmap_get(m->watch_pids, PID_TO_PTR(si.si_pid)); |
2525 | array = hashmap_get(m->watch_pids, PID_TO_PTR(-si.si_pid)); | |
2526 | if (array) { | |
2527 | size_t n = 0; | |
2528 | ||
5238e957 | 2529 | /* Count how many entries the array has */ |
62a76913 LP |
2530 | while (array[n]) |
2531 | n++; | |
2532 | ||
2533 | /* Make a copy of the array so that we don't trip up on the array changing beneath us */ | |
2534 | array_copy = newdup(Unit*, array, n+1); | |
2535 | if (!array_copy) | |
2536 | log_oom(); | |
2537 | } | |
2538 | ||
2539 | /* Finally, execute them all. Note that u1, u2 and the array might contain duplicates, but | |
2540 | * that's fine, manager_invoke_sigchld_event() will ensure we only invoke the handlers once for | |
2541 | * each iteration. */ | |
2ba6ae6b ZJS |
2542 | if (u1) { |
2543 | /* We check for oom condition, in case we got SIGCHLD before the oom notification. | |
2544 | * We only do this for the cgroup the PID belonged to. */ | |
2545 | (void) unit_check_oom(u1); | |
2546 | ||
62a76913 | 2547 | manager_invoke_sigchld_event(m, u1, &si); |
2ba6ae6b | 2548 | } |
62a76913 LP |
2549 | if (u2) |
2550 | manager_invoke_sigchld_event(m, u2, &si); | |
2551 | if (array_copy) | |
2552 | for (size_t i = 0; array_copy[i]; i++) | |
2553 | manager_invoke_sigchld_event(m, array_copy[i], &si); | |
575b300b | 2554 | } |
9152c765 | 2555 | |
575b300b LP |
2556 | /* And now, we actually reap the zombie. */ |
2557 | if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) { | |
2558 | log_error_errno(errno, "Failed to dequeue child, ignoring: %m"); | |
2559 | return 0; | |
2560 | } | |
9152c765 | 2561 | |
575b300b | 2562 | return 0; |
8c47c732 | 2563 | |
575b300b LP |
2564 | turn_off: |
2565 | /* All children processed for now, turn off event source */ | |
4112df16 | 2566 | |
575b300b LP |
2567 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_OFF); |
2568 | if (r < 0) | |
2569 | return log_error_errno(r, "Failed to disable SIGCHLD event source: %m"); | |
9152c765 LP |
2570 | |
2571 | return 0; | |
2572 | } | |
2573 | ||
c75fbada | 2574 | static void manager_start_target(Manager *m, const char *name, JobMode mode) { |
4afd3348 | 2575 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
28247076 | 2576 | int r; |
398ef8ba | 2577 | |
f2341e0a | 2578 | log_debug("Activating special unit %s", name); |
1e001f52 | 2579 | |
50cbaba4 | 2580 | r = manager_add_job_by_name(m, JOB_START, name, mode, NULL, &error, NULL); |
bd0af849 | 2581 | if (r < 0) |
f2341e0a | 2582 | log_error("Failed to enqueue %s job: %s", name, bus_error_message(&error, r)); |
28247076 LP |
2583 | } |
2584 | ||
24dd31c1 LN |
2585 | static void manager_handle_ctrl_alt_del(Manager *m) { |
2586 | /* If the user presses C-A-D more than | |
2587 | * 7 times within 2s, we reboot/shutdown immediately, | |
2588 | * unless it was disabled in system.conf */ | |
2589 | ||
7994ac1d | 2590 | if (ratelimit_below(&m->ctrl_alt_del_ratelimit) || m->cad_burst_action == EMERGENCY_ACTION_NONE) |
24dd31c1 | 2591 | manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY); |
ae8c7939 | 2592 | else |
7af67e9a | 2593 | emergency_action(m, m->cad_burst_action, EMERGENCY_ACTION_WARN, NULL, -1, |
ae8c7939 | 2594 | "Ctrl-Alt-Del was pressed more than 7 times within 2s"); |
24dd31c1 LN |
2595 | } |
2596 | ||
718db961 LP |
2597 | static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2598 | Manager *m = userdata; | |
9152c765 LP |
2599 | ssize_t n; |
2600 | struct signalfd_siginfo sfsi; | |
dacd6cee | 2601 | int r; |
9152c765 LP |
2602 | |
2603 | assert(m); | |
718db961 LP |
2604 | assert(m->signal_fd == fd); |
2605 | ||
2606 | if (revents != EPOLLIN) { | |
2607 | log_warning("Got unexpected events from signal file descriptor."); | |
2608 | return 0; | |
2609 | } | |
9152c765 | 2610 | |
575b300b LP |
2611 | n = read(m->signal_fd, &sfsi, sizeof(sfsi)); |
2612 | if (n != sizeof(sfsi)) { | |
2613 | if (n >= 0) { | |
2614 | log_warning("Truncated read from signal fd (%zu bytes), ignoring!", n); | |
2615 | return 0; | |
2616 | } | |
9152c765 | 2617 | |
575b300b LP |
2618 | if (IN_SET(errno, EINTR, EAGAIN)) |
2619 | return 0; | |
9152c765 | 2620 | |
575b300b LP |
2621 | /* We return an error here, which will kill this handler, |
2622 | * to avoid a busy loop on read error. */ | |
2623 | return log_error_errno(errno, "Reading from signal fd failed: %m"); | |
2624 | } | |
9152c765 | 2625 | |
575b300b LP |
2626 | log_received_signal(sfsi.ssi_signo == SIGCHLD || |
2627 | (sfsi.ssi_signo == SIGTERM && MANAGER_IS_USER(m)) | |
2628 | ? LOG_DEBUG : LOG_INFO, | |
2629 | &sfsi); | |
1e001f52 | 2630 | |
575b300b | 2631 | switch (sfsi.ssi_signo) { |
b9cd2ec1 | 2632 | |
575b300b LP |
2633 | case SIGCHLD: |
2634 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_ON); | |
2635 | if (r < 0) | |
8afabc50 | 2636 | log_warning_errno(r, "Failed to enable SIGCHLD event source, ignoring: %m"); |
b9cd2ec1 | 2637 | |
575b300b | 2638 | break; |
84e9af1e | 2639 | |
575b300b LP |
2640 | case SIGTERM: |
2641 | if (MANAGER_IS_SYSTEM(m)) { | |
ba0c7754 | 2642 | /* This is for compatibility with the original sysvinit */ |
c52b19d6 LP |
2643 | if (verify_run_space_and_log("Refusing to reexecute") < 0) |
2644 | break; | |
2645 | ||
2646 | m->objective = MANAGER_REEXECUTE; | |
a1b256b0 | 2647 | break; |
575b300b | 2648 | } |
84e9af1e | 2649 | |
575b300b LP |
2650 | _fallthrough_; |
2651 | case SIGINT: | |
2652 | if (MANAGER_IS_SYSTEM(m)) | |
2653 | manager_handle_ctrl_alt_del(m); | |
2654 | else | |
2655 | manager_start_target(m, SPECIAL_EXIT_TARGET, | |
2656 | JOB_REPLACE_IRREVERSIBLY); | |
2657 | break; | |
84e9af1e | 2658 | |
575b300b | 2659 | case SIGWINCH: |
ba0c7754 | 2660 | /* This is a nop on non-init */ |
575b300b LP |
2661 | if (MANAGER_IS_SYSTEM(m)) |
2662 | manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE); | |
84e9af1e | 2663 | |
575b300b | 2664 | break; |
84e9af1e | 2665 | |
575b300b | 2666 | case SIGPWR: |
ba0c7754 | 2667 | /* This is a nop on non-init */ |
575b300b LP |
2668 | if (MANAGER_IS_SYSTEM(m)) |
2669 | manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE); | |
6632c602 | 2670 | |
575b300b | 2671 | break; |
57ee42ce | 2672 | |
8559b3b7 | 2673 | case SIGUSR1: |
8559b3b7 | 2674 | if (manager_dbus_is_running(m, false)) { |
575b300b | 2675 | log_info("Trying to reconnect to bus..."); |
575b300b | 2676 | |
8559b3b7 LP |
2677 | (void) bus_init_api(m); |
2678 | ||
2679 | if (MANAGER_IS_SYSTEM(m)) | |
2680 | (void) bus_init_system(m); | |
2681 | } else { | |
2682 | log_info("Starting D-Bus service..."); | |
575b300b LP |
2683 | manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE); |
2684 | } | |
57ee42ce | 2685 | |
575b300b | 2686 | break; |
575b300b LP |
2687 | |
2688 | case SIGUSR2: { | |
2689 | _cleanup_free_ char *dump = NULL; | |
2690 | ||
2691 | r = manager_get_dump_string(m, &dump); | |
2692 | if (r < 0) { | |
2693 | log_warning_errno(errno, "Failed to acquire manager dump: %m"); | |
57ee42ce LP |
2694 | break; |
2695 | } | |
2696 | ||
575b300b LP |
2697 | log_dump(LOG_INFO, dump); |
2698 | break; | |
2699 | } | |
2149e37c | 2700 | |
575b300b | 2701 | case SIGHUP: |
c52b19d6 LP |
2702 | if (verify_run_space_and_log("Refusing to reload") < 0) |
2703 | break; | |
2704 | ||
2705 | m->objective = MANAGER_RELOAD; | |
575b300b LP |
2706 | break; |
2707 | ||
2708 | default: { | |
2709 | ||
2710 | /* Starting SIGRTMIN+0 */ | |
2711 | static const struct { | |
2712 | const char *target; | |
2713 | JobMode mode; | |
2714 | } target_table[] = { | |
2715 | [0] = { SPECIAL_DEFAULT_TARGET, JOB_ISOLATE }, | |
2716 | [1] = { SPECIAL_RESCUE_TARGET, JOB_ISOLATE }, | |
2717 | [2] = { SPECIAL_EMERGENCY_TARGET, JOB_ISOLATE }, | |
2718 | [3] = { SPECIAL_HALT_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2719 | [4] = { SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2720 | [5] = { SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2721 | [6] = { SPECIAL_KEXEC_TARGET, JOB_REPLACE_IRREVERSIBLY }, | |
2722 | }; | |
2723 | ||
2724 | /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */ | |
af41e508 | 2725 | static const ManagerObjective objective_table[] = { |
575b300b LP |
2726 | [0] = MANAGER_HALT, |
2727 | [1] = MANAGER_POWEROFF, | |
2728 | [2] = MANAGER_REBOOT, | |
2729 | [3] = MANAGER_KEXEC, | |
2730 | }; | |
b2cdc666 | 2731 | |
575b300b LP |
2732 | if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && |
2733 | (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { | |
2734 | int idx = (int) sfsi.ssi_signo - SIGRTMIN; | |
2735 | manager_start_target(m, target_table[idx].target, | |
2736 | target_table[idx].mode); | |
1005d14f | 2737 | break; |
2149e37c | 2738 | } |
1005d14f | 2739 | |
575b300b | 2740 | if ((int) sfsi.ssi_signo >= SIGRTMIN+13 && |
af41e508 LP |
2741 | (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(objective_table)) { |
2742 | m->objective = objective_table[sfsi.ssi_signo - SIGRTMIN - 13]; | |
575b300b LP |
2743 | break; |
2744 | } | |
2745 | ||
2746 | switch (sfsi.ssi_signo - SIGRTMIN) { | |
2747 | ||
2748 | case 20: | |
7365a296 | 2749 | manager_set_show_status(m, SHOW_STATUS_YES, "signal"); |
a16e1123 LP |
2750 | break; |
2751 | ||
575b300b | 2752 | case 21: |
7365a296 | 2753 | manager_set_show_status(m, SHOW_STATUS_NO, "signal"); |
575b300b | 2754 | break; |
7d793605 | 2755 | |
575b300b | 2756 | case 22: |
a6ecbf83 | 2757 | manager_override_log_level(m, LOG_DEBUG); |
575b300b LP |
2758 | break; |
2759 | ||
2760 | case 23: | |
a6ecbf83 | 2761 | manager_restore_original_log_level(m); |
575b300b | 2762 | break; |
0003d1ab | 2763 | |
575b300b LP |
2764 | case 24: |
2765 | if (MANAGER_IS_USER(m)) { | |
af41e508 | 2766 | m->objective = MANAGER_EXIT; |
575b300b | 2767 | return 0; |
0658666b | 2768 | } |
9152c765 | 2769 | |
575b300b LP |
2770 | /* This is a nop on init */ |
2771 | break; | |
2772 | ||
2773 | case 26: | |
2774 | case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ | |
bda7d78b | 2775 | manager_restore_original_log_target(m); |
575b300b LP |
2776 | break; |
2777 | ||
2778 | case 27: | |
bda7d78b | 2779 | manager_override_log_target(m, LOG_TARGET_CONSOLE); |
575b300b LP |
2780 | break; |
2781 | ||
2782 | case 28: | |
bda7d78b | 2783 | manager_override_log_target(m, LOG_TARGET_KMSG); |
575b300b LP |
2784 | break; |
2785 | ||
2786 | default: | |
2787 | log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); | |
2788 | } | |
2789 | }} | |
034c6ed7 LP |
2790 | |
2791 | return 0; | |
2792 | } | |
2793 | ||
718db961 LP |
2794 | static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2795 | Manager *m = userdata; | |
2796 | Iterator i; | |
2797 | Unit *u; | |
034c6ed7 LP |
2798 | |
2799 | assert(m); | |
718db961 | 2800 | assert(m->time_change_fd == fd); |
034c6ed7 | 2801 | |
a80c1575 | 2802 | log_struct(LOG_DEBUG, |
2b044526 | 2803 | "MESSAGE_ID=" SD_MESSAGE_TIME_CHANGE_STR, |
a1230ff9 | 2804 | LOG_MESSAGE("Time has been changed")); |
034c6ed7 | 2805 | |
718db961 | 2806 | /* Restart the watch */ |
7feedd18 | 2807 | (void) manager_setup_time_change(m); |
4e434314 | 2808 | |
718db961 LP |
2809 | HASHMAP_FOREACH(u, m->units, i) |
2810 | if (UNIT_VTABLE(u)->time_change) | |
2811 | UNIT_VTABLE(u)->time_change(u); | |
ea430986 | 2812 | |
718db961 LP |
2813 | return 0; |
2814 | } | |
ea430986 | 2815 | |
bbf5fd8e LP |
2816 | static int manager_dispatch_timezone_change( |
2817 | sd_event_source *source, | |
2818 | const struct inotify_event *e, | |
2819 | void *userdata) { | |
2820 | ||
2821 | Manager *m = userdata; | |
2822 | int changed; | |
2823 | Iterator i; | |
2824 | Unit *u; | |
2825 | ||
2826 | assert(m); | |
2827 | ||
2828 | log_debug("inotify event for /etc/localtime"); | |
2829 | ||
2830 | changed = manager_read_timezone_stat(m); | |
f20db199 | 2831 | if (changed <= 0) |
bbf5fd8e | 2832 | return changed; |
bbf5fd8e LP |
2833 | |
2834 | /* Something changed, restart the watch, to ensure we watch the new /etc/localtime if it changed */ | |
2835 | (void) manager_setup_timezone_change(m); | |
2836 | ||
2837 | /* Read the new timezone */ | |
2838 | tzset(); | |
2839 | ||
2840 | log_debug("Timezone has been changed (now: %s).", tzname[daylight]); | |
2841 | ||
2842 | HASHMAP_FOREACH(u, m->units, i) | |
2843 | if (UNIT_VTABLE(u)->timezone_change) | |
2844 | UNIT_VTABLE(u)->timezone_change(u); | |
2845 | ||
2846 | return 0; | |
2847 | } | |
2848 | ||
718db961 LP |
2849 | static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2850 | Manager *m = userdata; | |
8742514c | 2851 | |
718db961 LP |
2852 | assert(m); |
2853 | assert(m->idle_pipe[2] == fd); | |
8742514c | 2854 | |
5a69973f LP |
2855 | /* There's at least one Type=idle child that just gave up on us waiting for the boot process to complete. Let's |
2856 | * now turn off any further console output if there's at least one service that needs console access, so that | |
2857 | * from now on our own output should not spill into that service's output anymore. After all, we support | |
2858 | * Type=idle only to beautify console output and it generally is set on services that want to own the console | |
2859 | * exclusively without our interference. */ | |
718db961 | 2860 | m->no_console_output = m->n_on_console > 0; |
03b717a3 | 2861 | |
5a69973f LP |
2862 | /* Acknowledge the child's request, and let all all other children know too that they shouldn't wait any longer |
2863 | * by closing the pipes towards them, which is what they are waiting for. */ | |
718db961 | 2864 | manager_close_idle_pipe(m); |
03b717a3 | 2865 | |
718db961 LP |
2866 | return 0; |
2867 | } | |
31a7eb86 | 2868 | |
718db961 LP |
2869 | static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) { |
2870 | Manager *m = userdata; | |
fd08a840 ZJS |
2871 | int r; |
2872 | uint64_t next; | |
31a7eb86 | 2873 | |
718db961 | 2874 | assert(m); |
fd08a840 | 2875 | assert(source); |
9152c765 | 2876 | |
718db961 | 2877 | manager_print_jobs_in_progress(m); |
fd08a840 ZJS |
2878 | |
2879 | next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC; | |
2880 | r = sd_event_source_set_time(source, next); | |
2881 | if (r < 0) | |
2882 | return r; | |
2883 | ||
2884 | return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT); | |
9152c765 LP |
2885 | } |
2886 | ||
2887 | int manager_loop(Manager *m) { | |
8c227e7f | 2888 | RateLimit rl = { .interval = 1*USEC_PER_SEC, .burst = 50000 }; |
9152c765 | 2889 | int r; |
9152c765 LP |
2890 | |
2891 | assert(m); | |
1fb70e66 | 2892 | assert(m->objective == MANAGER_OK); /* Ensure manager_startup() has been called */ |
9152c765 | 2893 | |
b0c918b9 LP |
2894 | manager_check_finished(m); |
2895 | ||
575b300b LP |
2896 | /* There might still be some zombies hanging around from before we were exec()'ed. Let's reap them. */ |
2897 | r = sd_event_source_set_enabled(m->sigchld_event_source, SD_EVENT_ON); | |
e96d6be7 | 2898 | if (r < 0) |
575b300b | 2899 | return log_error_errno(r, "Failed to enable SIGCHLD event source: %m"); |
a4312405 | 2900 | |
af41e508 | 2901 | while (m->objective == MANAGER_OK) { |
718db961 | 2902 | usec_t wait_usec; |
9152c765 | 2903 | |
1f65fd49 | 2904 | if (timestamp_is_set(m->runtime_watchdog) && MANAGER_IS_SYSTEM(m)) |
e96d6be7 LP |
2905 | watchdog_ping(); |
2906 | ||
7994ac1d | 2907 | if (!ratelimit_below(&rl)) { |
ea430986 LP |
2908 | /* Yay, something is going seriously wrong, pause a little */ |
2909 | log_warning("Looping too fast. Throttling execution a little."); | |
2910 | sleep(1); | |
2911 | } | |
2912 | ||
37a8e683 | 2913 | if (manager_dispatch_load_queue(m) > 0) |
23a177ef LP |
2914 | continue; |
2915 | ||
c5a97ed1 LP |
2916 | if (manager_dispatch_gc_job_queue(m) > 0) |
2917 | continue; | |
2918 | ||
2919 | if (manager_dispatch_gc_unit_queue(m) > 0) | |
701cc384 LP |
2920 | continue; |
2921 | ||
cf1265e1 | 2922 | if (manager_dispatch_cleanup_queue(m) > 0) |
c1e1601e | 2923 | continue; |
034c6ed7 | 2924 | |
91a6073e | 2925 | if (manager_dispatch_cgroup_realize_queue(m) > 0) |
c1e1601e LP |
2926 | continue; |
2927 | ||
a3c1168a LP |
2928 | if (manager_dispatch_stop_when_unneeded_queue(m) > 0) |
2929 | continue; | |
2930 | ||
c1e1601e | 2931 | if (manager_dispatch_dbus_queue(m) > 0) |
ea430986 | 2932 | continue; |
ea430986 | 2933 | |
c5f8a179 AP |
2934 | /* Sleep for watchdog runtime wait time */ |
2935 | if (MANAGER_IS_SYSTEM(m)) | |
2936 | wait_usec = watchdog_runtime_wait(); | |
2937 | else | |
3a43da28 | 2938 | wait_usec = USEC_INFINITY; |
9152c765 | 2939 | |
718db961 | 2940 | r = sd_event_run(m->event, wait_usec); |
23bbb0de MS |
2941 | if (r < 0) |
2942 | return log_error_errno(r, "Failed to run event loop: %m"); | |
a16e1123 | 2943 | } |
957ca890 | 2944 | |
af41e508 | 2945 | return m->objective; |
83c60c9f | 2946 | } |
ea430986 | 2947 | |
718db961 | 2948 | int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) { |
ede3a796 | 2949 | _cleanup_free_ char *n = NULL; |
4b58153d | 2950 | sd_id128_t invocation_id; |
ea430986 | 2951 | Unit *u; |
80fbf05e | 2952 | int r; |
ea430986 LP |
2953 | |
2954 | assert(m); | |
2955 | assert(s); | |
2956 | assert(_u); | |
2957 | ||
ede3a796 LP |
2958 | r = unit_name_from_dbus_path(s, &n); |
2959 | if (r < 0) | |
2960 | return r; | |
ea430986 | 2961 | |
4b58153d LP |
2962 | /* Permit addressing units by invocation ID: if the passed bus path is suffixed by a 128bit ID then we use it |
2963 | * as invocation ID. */ | |
2964 | r = sd_id128_from_string(n, &invocation_id); | |
2965 | if (r >= 0) { | |
2966 | u = hashmap_get(m->units_by_invocation_id, &invocation_id); | |
2967 | if (u) { | |
2968 | *_u = u; | |
2969 | return 0; | |
2970 | } | |
2971 | ||
930c124c ZJS |
2972 | return sd_bus_error_setf(e, BUS_ERROR_NO_UNIT_FOR_INVOCATION_ID, |
2973 | "No unit with the specified invocation ID " SD_ID128_FORMAT_STR " known.", | |
2974 | SD_ID128_FORMAT_VAL(invocation_id)); | |
4b58153d LP |
2975 | } |
2976 | ||
00c83b43 | 2977 | /* If this didn't work, we check if this is a unit name */ |
930c124c ZJS |
2978 | if (!unit_name_is_valid(n, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) { |
2979 | _cleanup_free_ char *nn = NULL; | |
2980 | ||
2981 | nn = cescape(n); | |
2982 | return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, | |
2983 | "Unit name %s is neither a valid invocation ID nor unit name.", strnull(nn)); | |
2984 | } | |
00c83b43 | 2985 | |
80fbf05e | 2986 | r = manager_load_unit(m, n, NULL, e, &u); |
80fbf05e MS |
2987 | if (r < 0) |
2988 | return r; | |
ea430986 LP |
2989 | |
2990 | *_u = u; | |
ea430986 LP |
2991 | return 0; |
2992 | } | |
86fbf370 LP |
2993 | |
2994 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) { | |
718db961 | 2995 | const char *p; |
86fbf370 | 2996 | unsigned id; |
718db961 | 2997 | Job *j; |
86fbf370 LP |
2998 | int r; |
2999 | ||
3000 | assert(m); | |
3001 | assert(s); | |
3002 | assert(_j); | |
3003 | ||
718db961 LP |
3004 | p = startswith(s, "/org/freedesktop/systemd1/job/"); |
3005 | if (!p) | |
86fbf370 LP |
3006 | return -EINVAL; |
3007 | ||
718db961 | 3008 | r = safe_atou(p, &id); |
8742514c | 3009 | if (r < 0) |
86fbf370 LP |
3010 | return r; |
3011 | ||
8742514c LP |
3012 | j = manager_get_job(m, id); |
3013 | if (!j) | |
86fbf370 LP |
3014 | return -ENOENT; |
3015 | ||
3016 | *_j = j; | |
3017 | ||
3018 | return 0; | |
3019 | } | |
dfcd764e | 3020 | |
4927fcae | 3021 | void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { |
e537352b | 3022 | |
349cc4a5 | 3023 | #if HAVE_AUDIT |
2ba11090 | 3024 | _cleanup_free_ char *p = NULL; |
0aa281df | 3025 | const char *msg; |
7410616c | 3026 | int audit_fd, r; |
e537352b | 3027 | |
463d0d15 | 3028 | if (!MANAGER_IS_SYSTEM(m)) |
a1a078ee LP |
3029 | return; |
3030 | ||
c1165f82 LP |
3031 | audit_fd = get_audit_fd(); |
3032 | if (audit_fd < 0) | |
e537352b LP |
3033 | return; |
3034 | ||
bbd3a7ba LP |
3035 | /* Don't generate audit events if the service was already |
3036 | * started and we're just deserializing */ | |
2c289ea8 | 3037 | if (MANAGER_IS_RELOADING(m)) |
bbd3a7ba LP |
3038 | return; |
3039 | ||
ac155bb8 | 3040 | if (u->type != UNIT_SERVICE) |
f1dd0c3f LP |
3041 | return; |
3042 | ||
7410616c LP |
3043 | r = unit_name_to_prefix_and_instance(u->id, &p); |
3044 | if (r < 0) { | |
3045 | log_error_errno(r, "Failed to extract prefix and instance of unit name: %m"); | |
e537352b LP |
3046 | return; |
3047 | } | |
3048 | ||
63c372cb | 3049 | msg = strjoina("unit=", p); |
0aa281df LP |
3050 | if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) { |
3051 | if (errno == EPERM) | |
391ade86 | 3052 | /* We aren't allowed to send audit messages? |
44785992 | 3053 | * Then let's not retry again. */ |
c1165f82 | 3054 | close_audit_fd(); |
0aa281df | 3055 | else |
56f64d95 | 3056 | log_warning_errno(errno, "Failed to send audit message: %m"); |
391ade86 | 3057 | } |
4927fcae | 3058 | #endif |
e537352b | 3059 | |
e537352b LP |
3060 | } |
3061 | ||
e983b760 | 3062 | void manager_send_unit_plymouth(Manager *m, Unit *u) { |
fc2fffe7 | 3063 | static const union sockaddr_union sa = PLYMOUTH_SOCKET; |
2ba11090 ZJS |
3064 | _cleanup_free_ char *message = NULL; |
3065 | _cleanup_close_ int fd = -1; | |
fc2fffe7 | 3066 | int n = 0; |
e983b760 LP |
3067 | |
3068 | /* Don't generate plymouth events if the service was already | |
3069 | * started and we're just deserializing */ | |
2c289ea8 | 3070 | if (MANAGER_IS_RELOADING(m)) |
e983b760 LP |
3071 | return; |
3072 | ||
463d0d15 | 3073 | if (!MANAGER_IS_SYSTEM(m)) |
e983b760 LP |
3074 | return; |
3075 | ||
75f86906 | 3076 | if (detect_container() > 0) |
3772995a LP |
3077 | return; |
3078 | ||
ec2ce0c5 | 3079 | if (!IN_SET(u->type, UNIT_SERVICE, UNIT_MOUNT, UNIT_SWAP)) |
e983b760 LP |
3080 | return; |
3081 | ||
3082 | /* We set SOCK_NONBLOCK here so that we rather drop the | |
3083 | * message then wait for plymouth */ | |
e62d8c39 ZJS |
3084 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
3085 | if (fd < 0) { | |
56f64d95 | 3086 | log_error_errno(errno, "socket() failed: %m"); |
e983b760 LP |
3087 | return; |
3088 | } | |
3089 | ||
fc2fffe7 | 3090 | if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) { |
f60a028a | 3091 | if (!IN_SET(errno, EAGAIN, ENOENT) && !ERRNO_IS_DISCONNECT(errno)) |
56f64d95 | 3092 | log_error_errno(errno, "connect() failed: %m"); |
2ba11090 | 3093 | return; |
e983b760 LP |
3094 | } |
3095 | ||
ac155bb8 | 3096 | if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { |
0d0f0c50 | 3097 | log_oom(); |
2ba11090 | 3098 | return; |
e983b760 LP |
3099 | } |
3100 | ||
3101 | errno = 0; | |
2ba11090 | 3102 | if (write(fd, message, n + 1) != n + 1) |
f60a028a | 3103 | if (!IN_SET(errno, EAGAIN, ENOENT) && !ERRNO_IS_DISCONNECT(errno)) |
56f64d95 | 3104 | log_error_errno(errno, "Failed to write Plymouth message: %m"); |
e983b760 LP |
3105 | } |
3106 | ||
d8d5ab98 | 3107 | int manager_open_serialization(Manager *m, FILE **_f) { |
b46c3e49 | 3108 | _cleanup_close_ int fd = -1; |
a16e1123 LP |
3109 | FILE *f; |
3110 | ||
3111 | assert(_f); | |
3112 | ||
504afd7c ZJS |
3113 | fd = open_serialization_fd("systemd-state"); |
3114 | if (fd < 0) | |
3115 | return fd; | |
a16e1123 | 3116 | |
b46c3e49 VC |
3117 | f = take_fdopen(&fd, "w+"); |
3118 | if (!f) | |
a16e1123 LP |
3119 | return -errno; |
3120 | ||
3121 | *_f = f; | |
a16e1123 LP |
3122 | return 0; |
3123 | } | |
3124 | ||
cdd620e3 LP |
3125 | static bool manager_timestamp_shall_serialize(ManagerTimestamp t) { |
3126 | ||
3127 | if (!in_initrd()) | |
3128 | return true; | |
3129 | ||
3130 | /* The following timestamps only apply to the host system, hence only serialize them there */ | |
3131 | return !IN_SET(t, | |
3132 | MANAGER_TIMESTAMP_USERSPACE, MANAGER_TIMESTAMP_FINISH, | |
3133 | MANAGER_TIMESTAMP_SECURITY_START, MANAGER_TIMESTAMP_SECURITY_FINISH, | |
3134 | MANAGER_TIMESTAMP_GENERATORS_START, MANAGER_TIMESTAMP_GENERATORS_FINISH, | |
3135 | MANAGER_TIMESTAMP_UNITS_LOAD_START, MANAGER_TIMESTAMP_UNITS_LOAD_FINISH); | |
3136 | } | |
3137 | ||
4daf832a LP |
3138 | int manager_serialize( |
3139 | Manager *m, | |
3140 | FILE *f, | |
3141 | FDSet *fds, | |
3142 | bool switching_root) { | |
3143 | ||
9f9f0342 LP |
3144 | ManagerTimestamp q; |
3145 | const char *t; | |
a16e1123 LP |
3146 | Iterator i; |
3147 | Unit *u; | |
a16e1123 LP |
3148 | int r; |
3149 | ||
3150 | assert(m); | |
3151 | assert(f); | |
3152 | assert(fds); | |
3153 | ||
cb16b085 | 3154 | _cleanup_(manager_reloading_stopp) _unused_ Manager *reloading = manager_reloading_start(m); |
38c52d46 | 3155 | |
d68c645b LP |
3156 | (void) serialize_item_format(f, "current-job-id", "%" PRIu32, m->current_job_id); |
3157 | (void) serialize_item_format(f, "n-installed-jobs", "%u", m->n_installed_jobs); | |
3158 | (void) serialize_item_format(f, "n-failed-jobs", "%u", m->n_failed_jobs); | |
3159 | (void) serialize_bool(f, "taint-usr", m->taint_usr); | |
3160 | (void) serialize_bool(f, "ready-sent", m->ready_sent); | |
3161 | (void) serialize_bool(f, "taint-logged", m->taint_logged); | |
3162 | (void) serialize_bool(f, "service-watchdogs", m->service_watchdogs); | |
01d67b43 | 3163 | |
c6e892bc YW |
3164 | /* After switching root, udevd has not been started yet. So, enumeration results should not be emitted. */ |
3165 | (void) serialize_bool(f, "honor-device-enumeration", !switching_root); | |
3166 | ||
bee38b5c YW |
3167 | t = show_status_to_string(m->show_status); |
3168 | if (t) | |
d68c645b | 3169 | (void) serialize_item(f, "show-status", t); |
bee38b5c | 3170 | |
a6ecbf83 | 3171 | if (m->log_level_overridden) |
d68c645b | 3172 | (void) serialize_item_format(f, "log-level-override", "%i", log_get_max_level()); |
bda7d78b | 3173 | if (m->log_target_overridden) |
d68c645b | 3174 | (void) serialize_item(f, "log-target-override", log_target_to_string(log_get_target())); |
a6ecbf83 | 3175 | |
9f9f0342 | 3176 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { |
c475e57d LP |
3177 | _cleanup_free_ char *joined = NULL; |
3178 | ||
cdd620e3 | 3179 | if (!manager_timestamp_shall_serialize(q)) |
9f9f0342 | 3180 | continue; |
f38ed060 | 3181 | |
c475e57d LP |
3182 | joined = strjoin(manager_timestamp_to_string(q), "-timestamp"); |
3183 | if (!joined) | |
3184 | return log_oom(); | |
3185 | ||
d68c645b | 3186 | (void) serialize_dual_timestamp(f, joined, m->timestamps + q); |
f38ed060 | 3187 | } |
47a483a1 | 3188 | |
fe902fa4 | 3189 | if (!switching_root) |
1ad6e8b3 | 3190 | (void) serialize_strv(f, "env", m->client_environment); |
4a9fd066 | 3191 | |
d86f9d52 | 3192 | if (m->notify_fd >= 0) { |
d68c645b LP |
3193 | r = serialize_fd(f, fds, "notify-fd", m->notify_fd); |
3194 | if (r < 0) | |
3195 | return r; | |
d86f9d52 | 3196 | |
d68c645b | 3197 | (void) serialize_item(f, "notify-socket", m->notify_socket); |
d86f9d52 LP |
3198 | } |
3199 | ||
d8fdc620 | 3200 | if (m->cgroups_agent_fd >= 0) { |
d68c645b LP |
3201 | r = serialize_fd(f, fds, "cgroups-agent-fd", m->cgroups_agent_fd); |
3202 | if (r < 0) | |
3203 | return r; | |
d8fdc620 LP |
3204 | } |
3205 | ||
00d9ef85 LP |
3206 | if (m->user_lookup_fds[0] >= 0) { |
3207 | int copy0, copy1; | |
3208 | ||
3209 | copy0 = fdset_put_dup(fds, m->user_lookup_fds[0]); | |
d147e2b6 | 3210 | if (copy0 < 0) |
d68c645b | 3211 | return log_error_errno(copy0, "Failed to add user lookup fd to serialization: %m"); |
00d9ef85 LP |
3212 | |
3213 | copy1 = fdset_put_dup(fds, m->user_lookup_fds[1]); | |
d147e2b6 | 3214 | if (copy1 < 0) |
d68c645b | 3215 | return log_error_errno(copy1, "Failed to add user lookup fd to serialization: %m"); |
00d9ef85 | 3216 | |
d68c645b | 3217 | (void) serialize_item_format(f, "user-lookup", "%i %i", copy0, copy1); |
00d9ef85 LP |
3218 | } |
3219 | ||
05a98afd | 3220 | bus_track_serialize(m->subscribed, f, "subscribed"); |
6fa48533 | 3221 | |
29206d46 LP |
3222 | r = dynamic_user_serialize(m, f, fds); |
3223 | if (r < 0) | |
d147e2b6 | 3224 | return r; |
29206d46 | 3225 | |
00d9ef85 LP |
3226 | manager_serialize_uid_refs(m, f); |
3227 | manager_serialize_gid_refs(m, f); | |
3228 | ||
e8a565cb YW |
3229 | r = exec_runtime_serialize(m, f, fds); |
3230 | if (r < 0) | |
d147e2b6 | 3231 | return r; |
e8a565cb | 3232 | |
0d536673 | 3233 | (void) fputc('\n', f); |
f2382a94 | 3234 | |
a16e1123 | 3235 | HASHMAP_FOREACH_KEY(u, t, m->units, i) { |
ac155bb8 | 3236 | if (u->id != t) |
a16e1123 LP |
3237 | continue; |
3238 | ||
a16e1123 | 3239 | /* Start marker */ |
0d536673 LP |
3240 | fputs(u->id, f); |
3241 | fputc('\n', f); | |
a16e1123 | 3242 | |
6fa48533 | 3243 | r = unit_serialize(u, f, fds, !switching_root); |
4daf832a | 3244 | if (r < 0) |
d147e2b6 | 3245 | return r; |
a16e1123 LP |
3246 | } |
3247 | ||
01d32c00 LP |
3248 | r = fflush_and_check(f); |
3249 | if (r < 0) | |
d68c645b | 3250 | return log_error_errno(r, "Failed to flush serialization: %m"); |
a16e1123 | 3251 | |
b23de6af LP |
3252 | r = bus_fdset_add_all(m, fds); |
3253 | if (r < 0) | |
d68c645b | 3254 | return log_error_errno(r, "Failed to add bus sockets to serialization: %m"); |
4daf832a | 3255 | |
d147e2b6 | 3256 | return 0; |
a16e1123 LP |
3257 | } |
3258 | ||
651b3b6c FB |
3259 | static int manager_deserialize_one_unit(Manager *m, const char *name, FILE *f, FDSet *fds) { |
3260 | Unit *u; | |
3261 | int r; | |
3262 | ||
3263 | r = manager_load_unit(m, name, NULL, NULL, &u); | |
3264 | if (r < 0) { | |
3265 | if (r == -ENOMEM) | |
3266 | return r; | |
3267 | return log_notice_errno(r, "Failed to load unit \"%s\", skipping deserialization: %m", name); | |
3268 | } | |
3269 | ||
3270 | r = unit_deserialize(u, f, fds); | |
3271 | if (r < 0) { | |
3272 | if (r == -ENOMEM) | |
3273 | return r; | |
3274 | return log_notice_errno(r, "Failed to deserialize unit \"%s\", skipping: %m", name); | |
3275 | } | |
3276 | ||
3277 | return 0; | |
3278 | } | |
3279 | ||
3280 | static int manager_deserialize_units(Manager *m, FILE *f, FDSet *fds) { | |
651b3b6c FB |
3281 | const char *unit_name; |
3282 | int r; | |
3283 | ||
3284 | for (;;) { | |
7334ade4 | 3285 | _cleanup_free_ char *line = NULL; |
651b3b6c FB |
3286 | /* Start marker */ |
3287 | r = read_line(f, LONG_LINE_MAX, &line); | |
3288 | if (r < 0) | |
3289 | return log_error_errno(r, "Failed to read serialization line: %m"); | |
3290 | if (r == 0) | |
3291 | break; | |
3292 | ||
3293 | unit_name = strstrip(line); | |
3294 | ||
3295 | r = manager_deserialize_one_unit(m, unit_name, f, fds); | |
3296 | if (r == -ENOMEM) | |
3297 | return r; | |
3298 | if (r < 0) { | |
3299 | r = unit_deserialize_skip(f); | |
3300 | if (r < 0) | |
3301 | return r; | |
3302 | } | |
3303 | } | |
3304 | ||
3305 | return 0; | |
3306 | } | |
3307 | ||
a16e1123 LP |
3308 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { |
3309 | int r = 0; | |
3310 | ||
3311 | assert(m); | |
3312 | assert(f); | |
3313 | ||
3314 | log_debug("Deserializing state..."); | |
3315 | ||
eb10d0bf LP |
3316 | /* If we are not in reload mode yet, enter it now. Not that this is recursive, a caller might already have |
3317 | * increased it to non-zero, which is why we just increase it by one here and down again at the end of this | |
3318 | * call. */ | |
cb16b085 | 3319 | _cleanup_(manager_reloading_stopp) _unused_ Manager *reloading = manager_reloading_start(m); |
82c64bf5 | 3320 | |
10f8e83c | 3321 | for (;;) { |
8948b341 | 3322 | _cleanup_free_ char *line = NULL; |
d233c99a | 3323 | const char *val, *l; |
10f8e83c | 3324 | |
8948b341 LP |
3325 | r = read_line(f, LONG_LINE_MAX, &line); |
3326 | if (r < 0) | |
3327 | return log_error_errno(r, "Failed to read serialization line: %m"); | |
3328 | if (r == 0) | |
3329 | break; | |
10f8e83c | 3330 | |
10f8e83c | 3331 | l = strstrip(line); |
8948b341 | 3332 | if (isempty(l)) /* end marker */ |
10f8e83c LP |
3333 | break; |
3334 | ||
fb4650aa | 3335 | if ((val = startswith(l, "current-job-id="))) { |
01d67b43 LP |
3336 | uint32_t id; |
3337 | ||
fb4650aa | 3338 | if (safe_atou32(val, &id) < 0) |
b2a8a3dd | 3339 | log_notice("Failed to parse current job id value '%s', ignoring.", val); |
01d67b43 LP |
3340 | else |
3341 | m->current_job_id = MAX(m->current_job_id, id); | |
718db961 | 3342 | |
fb4650aa | 3343 | } else if ((val = startswith(l, "n-installed-jobs="))) { |
33c5fae9 LP |
3344 | uint32_t n; |
3345 | ||
fb4650aa | 3346 | if (safe_atou32(val, &n) < 0) |
b2a8a3dd | 3347 | log_notice("Failed to parse installed jobs counter '%s', ignoring.", val); |
33c5fae9 LP |
3348 | else |
3349 | m->n_installed_jobs += n; | |
718db961 | 3350 | |
fb4650aa | 3351 | } else if ((val = startswith(l, "n-failed-jobs="))) { |
33c5fae9 LP |
3352 | uint32_t n; |
3353 | ||
fb4650aa | 3354 | if (safe_atou32(val, &n) < 0) |
b2a8a3dd | 3355 | log_notice("Failed to parse failed jobs counter '%s', ignoring.", val); |
33c5fae9 LP |
3356 | else |
3357 | m->n_failed_jobs += n; | |
718db961 | 3358 | |
fb4650aa | 3359 | } else if ((val = startswith(l, "taint-usr="))) { |
01d67b43 LP |
3360 | int b; |
3361 | ||
fb4650aa | 3362 | b = parse_boolean(val); |
e3dd987c | 3363 | if (b < 0) |
b2a8a3dd | 3364 | log_notice("Failed to parse taint /usr flag '%s', ignoring.", val); |
01d67b43 LP |
3365 | else |
3366 | m->taint_usr = m->taint_usr || b; | |
718db961 | 3367 | |
0c2826c6 ZJS |
3368 | } else if ((val = startswith(l, "ready-sent="))) { |
3369 | int b; | |
3370 | ||
3371 | b = parse_boolean(val); | |
3372 | if (b < 0) | |
b2a8a3dd | 3373 | log_notice("Failed to parse ready-sent flag '%s', ignoring.", val); |
0c2826c6 ZJS |
3374 | else |
3375 | m->ready_sent = m->ready_sent || b; | |
3376 | ||
d8eb10d6 ZJS |
3377 | } else if ((val = startswith(l, "taint-logged="))) { |
3378 | int b; | |
3379 | ||
3380 | b = parse_boolean(val); | |
3381 | if (b < 0) | |
b2a8a3dd | 3382 | log_notice("Failed to parse taint-logged flag '%s', ignoring.", val); |
d8eb10d6 ZJS |
3383 | else |
3384 | m->taint_logged = m->taint_logged || b; | |
3385 | ||
2a12e32e JK |
3386 | } else if ((val = startswith(l, "service-watchdogs="))) { |
3387 | int b; | |
3388 | ||
3389 | b = parse_boolean(val); | |
3390 | if (b < 0) | |
b2a8a3dd | 3391 | log_notice("Failed to parse service-watchdogs flag '%s', ignoring.", val); |
2a12e32e JK |
3392 | else |
3393 | m->service_watchdogs = b; | |
3394 | ||
c6e892bc YW |
3395 | } else if ((val = startswith(l, "honor-device-enumeration="))) { |
3396 | int b; | |
3397 | ||
3398 | b = parse_boolean(val); | |
3399 | if (b < 0) | |
3400 | log_notice("Failed to parse honor-device-enumeration flag '%s', ignoring.", val); | |
3401 | else | |
3402 | m->honor_device_enumeration = b; | |
3403 | ||
bee38b5c YW |
3404 | } else if ((val = startswith(l, "show-status="))) { |
3405 | ShowStatus s; | |
3406 | ||
3407 | s = show_status_from_string(val); | |
3408 | if (s < 0) | |
b2a8a3dd | 3409 | log_notice("Failed to parse show-status flag '%s', ignoring.", val); |
bee38b5c | 3410 | else |
7365a296 | 3411 | manager_set_show_status(m, s, "deserialization"); |
bee38b5c | 3412 | |
a6ecbf83 FB |
3413 | } else if ((val = startswith(l, "log-level-override="))) { |
3414 | int level; | |
3415 | ||
3416 | level = log_level_from_string(val); | |
3417 | if (level < 0) | |
3418 | log_notice("Failed to parse log-level-override value '%s', ignoring.", val); | |
3419 | else | |
3420 | manager_override_log_level(m, level); | |
3421 | ||
bda7d78b FB |
3422 | } else if ((val = startswith(l, "log-target-override="))) { |
3423 | LogTarget target; | |
3424 | ||
3425 | target = log_target_from_string(val); | |
3426 | if (target < 0) | |
3427 | log_notice("Failed to parse log-target-override value '%s', ignoring.", val); | |
3428 | else | |
3429 | manager_override_log_target(m, target); | |
3430 | ||
9f9f0342 | 3431 | } else if (startswith(l, "env=")) { |
1ad6e8b3 | 3432 | r = deserialize_environment(l + 4, &m->client_environment); |
527b7a42 | 3433 | if (r < 0) |
b2a8a3dd | 3434 | log_notice_errno(r, "Failed to parse environment entry: \"%s\", ignoring: %m", l); |
e3dd987c | 3435 | |
fb4650aa | 3436 | } else if ((val = startswith(l, "notify-fd="))) { |
d86f9d52 LP |
3437 | int fd; |
3438 | ||
fb4650aa | 3439 | if (safe_atoi(val, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
b2a8a3dd | 3440 | log_notice("Failed to parse notify fd, ignoring: \"%s\"", val); |
d86f9d52 | 3441 | else { |
03e334a1 LP |
3442 | m->notify_event_source = sd_event_source_unref(m->notify_event_source); |
3443 | safe_close(m->notify_fd); | |
d86f9d52 LP |
3444 | m->notify_fd = fdset_remove(fds, fd); |
3445 | } | |
3446 | ||
fb4650aa | 3447 | } else if ((val = startswith(l, "notify-socket="))) { |
05067c3c ZJS |
3448 | r = free_and_strdup(&m->notify_socket, val); |
3449 | if (r < 0) | |
3450 | return r; | |
d86f9d52 | 3451 | |
fb4650aa | 3452 | } else if ((val = startswith(l, "cgroups-agent-fd="))) { |
d8fdc620 LP |
3453 | int fd; |
3454 | ||
fb4650aa | 3455 | if (safe_atoi(val, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) |
b2a8a3dd | 3456 | log_notice("Failed to parse cgroups agent fd, ignoring.: %s", val); |
d8fdc620 LP |
3457 | else { |
3458 | m->cgroups_agent_event_source = sd_event_source_unref(m->cgroups_agent_event_source); | |
3459 | safe_close(m->cgroups_agent_fd); | |
3460 | m->cgroups_agent_fd = fdset_remove(fds, fd); | |
3461 | } | |
3462 | ||
fb4650aa | 3463 | } else if ((val = startswith(l, "user-lookup="))) { |
00d9ef85 LP |
3464 | int fd0, fd1; |
3465 | ||
fb4650aa | 3466 | if (sscanf(val, "%i %i", &fd0, &fd1) != 2 || fd0 < 0 || fd1 < 0 || fd0 == fd1 || !fdset_contains(fds, fd0) || !fdset_contains(fds, fd1)) |
b2a8a3dd | 3467 | log_notice("Failed to parse user lookup fd, ignoring: %s", val); |
00d9ef85 LP |
3468 | else { |
3469 | m->user_lookup_event_source = sd_event_source_unref(m->user_lookup_event_source); | |
3470 | safe_close_pair(m->user_lookup_fds); | |
3471 | m->user_lookup_fds[0] = fdset_remove(fds, fd0); | |
3472 | m->user_lookup_fds[1] = fdset_remove(fds, fd1); | |
3473 | } | |
3474 | ||
fb4650aa ZJS |
3475 | } else if ((val = startswith(l, "dynamic-user="))) |
3476 | dynamic_user_deserialize_one(m, val, fds); | |
3477 | else if ((val = startswith(l, "destroy-ipc-uid="))) | |
3478 | manager_deserialize_uid_refs_one(m, val); | |
3479 | else if ((val = startswith(l, "destroy-ipc-gid="))) | |
3480 | manager_deserialize_gid_refs_one(m, val); | |
e8a565cb YW |
3481 | else if ((val = startswith(l, "exec-runtime="))) |
3482 | exec_runtime_deserialize_one(m, val, fds); | |
fb4650aa | 3483 | else if ((val = startswith(l, "subscribed="))) { |
05a98afd | 3484 | |
05067c3c ZJS |
3485 | if (strv_extend(&m->deserialized_subscribed, val) < 0) |
3486 | return -ENOMEM; | |
18869883 | 3487 | |
9f9f0342 LP |
3488 | } else { |
3489 | ManagerTimestamp q; | |
3490 | ||
3491 | for (q = 0; q < _MANAGER_TIMESTAMP_MAX; q++) { | |
3492 | val = startswith(l, manager_timestamp_to_string(q)); | |
3493 | if (!val) | |
3494 | continue; | |
05a98afd | 3495 | |
9f9f0342 LP |
3496 | val = startswith(val, "-timestamp="); |
3497 | if (val) | |
3498 | break; | |
3499 | } | |
05a98afd | 3500 | |
9f9f0342 | 3501 | if (q < _MANAGER_TIMESTAMP_MAX) /* found it */ |
d68c645b | 3502 | (void) deserialize_dual_timestamp(val, m->timestamps + q); |
9f9f0342 | 3503 | else if (!startswith(l, "kdbus-fd=")) /* ignore kdbus */ |
b2a8a3dd | 3504 | log_notice("Unknown serialization item '%s', ignoring.", l); |
9f9f0342 | 3505 | } |
10f8e83c LP |
3506 | } |
3507 | ||
651b3b6c | 3508 | return manager_deserialize_units(m, f, fds); |
a16e1123 LP |
3509 | } |
3510 | ||
3511 | int manager_reload(Manager *m) { | |
d147e2b6 | 3512 | _cleanup_(manager_reloading_stopp) Manager *reloading = NULL; |
51d122af | 3513 | _cleanup_fdset_free_ FDSet *fds = NULL; |
6a33af40 LP |
3514 | _cleanup_fclose_ FILE *f = NULL; |
3515 | int r; | |
a16e1123 LP |
3516 | |
3517 | assert(m); | |
3518 | ||
07719a21 LP |
3519 | r = manager_open_serialization(m, &f); |
3520 | if (r < 0) | |
6a33af40 | 3521 | return log_error_errno(r, "Failed to create serialization file: %m"); |
38c52d46 | 3522 | |
07719a21 | 3523 | fds = fdset_new(); |
6a33af40 LP |
3524 | if (!fds) |
3525 | return log_oom(); | |
3526 | ||
d147e2b6 ZJS |
3527 | /* We are officially in reload mode from here on. */ |
3528 | reloading = manager_reloading_start(m); | |
a16e1123 | 3529 | |
b3680f49 | 3530 | r = manager_serialize(m, f, fds, false); |
d147e2b6 | 3531 | if (r < 0) |
d68c645b | 3532 | return r; |
a16e1123 | 3533 | |
d147e2b6 ZJS |
3534 | if (fseeko(f, 0, SEEK_SET) < 0) |
3535 | return log_error_errno(errno, "Failed to seek to beginning of serialization: %m"); | |
a16e1123 | 3536 | |
6a33af40 | 3537 | /* 💀 This is the point of no return, from here on there is no way back. 💀 */ |
d147e2b6 | 3538 | reloading = NULL; |
6a33af40 LP |
3539 | |
3540 | bus_manager_send_reloading(m, true); | |
3541 | ||
3542 | /* Start by flushing out all jobs and units, all generated units, all runtime environments, all dynamic users | |
3543 | * and everything else that is worth flushing out. We'll get it all back from the serialization — if we need | |
3544 | * it.*/ | |
3545 | ||
a16e1123 | 3546 | manager_clear_jobs_and_units(m); |
07a78643 | 3547 | lookup_paths_flush_generator(&m->lookup_paths); |
84e3543e | 3548 | lookup_paths_free(&m->lookup_paths); |
e8a565cb | 3549 | exec_runtime_vacuum(m); |
29206d46 | 3550 | dynamic_user_vacuum(m, false); |
00d9ef85 LP |
3551 | m->uid_refs = hashmap_free(m->uid_refs); |
3552 | m->gid_refs = hashmap_free(m->gid_refs); | |
2ded0c04 | 3553 | |
7c3733d5 | 3554 | r = lookup_paths_init(&m->lookup_paths, m->unit_file_scope, 0, NULL); |
6a33af40 LP |
3555 | if (r < 0) |
3556 | log_warning_errno(r, "Failed to initialize path lookup table, ignoring: %m"); | |
5a1e9937 | 3557 | |
6a33af40 LP |
3558 | (void) manager_run_environment_generators(m); |
3559 | (void) manager_run_generators(m); | |
64691d20 | 3560 | |
581fef8d | 3561 | lookup_paths_log(&m->lookup_paths); |
07719a21 | 3562 | |
91e0ee5f | 3563 | /* We flushed out generated files, for which we don't watch mtime, so we should flush the old map. */ |
e8630e69 | 3564 | manager_free_unit_name_maps(m); |
5a1e9937 | 3565 | |
6a33af40 | 3566 | /* First, enumerate what we can from kernel and suchlike */ |
3ad2afb6 | 3567 | manager_enumerate_perpetual(m); |
ba64af90 | 3568 | manager_enumerate(m); |
a16e1123 LP |
3569 | |
3570 | /* Second, deserialize our stored data */ | |
6a33af40 LP |
3571 | r = manager_deserialize(m, f, fds); |
3572 | if (r < 0) | |
3573 | log_warning_errno(r, "Deserialization failed, proceeding anyway: %m"); | |
a16e1123 | 3574 | |
6a33af40 | 3575 | /* We don't need the serialization anymore */ |
62b0cbb3 | 3576 | f = safe_fclose(f); |
a16e1123 | 3577 | |
6a33af40 LP |
3578 | /* Re-register notify_fd as event source, and set up other sockets/communication channels we might need */ |
3579 | (void) manager_setup_notify(m); | |
3580 | (void) manager_setup_cgroups_agent(m); | |
3581 | (void) manager_setup_user_lookup_fd(m); | |
00d9ef85 | 3582 | |
a16e1123 | 3583 | /* Third, fire things up! */ |
007c6337 | 3584 | manager_coldplug(m); |
a16e1123 | 3585 | |
5197be06 LP |
3586 | /* Clean up runtime objects no longer referenced */ |
3587 | manager_vacuum(m); | |
e8a565cb | 3588 | |
6a33af40 | 3589 | /* Consider the reload process complete now. */ |
31dc1ca3 LP |
3590 | assert(m->n_reloading > 0); |
3591 | m->n_reloading--; | |
3592 | ||
c6e892bc YW |
3593 | /* On manager reloading, device tag data should exists, thus, we should honor the results of device |
3594 | * enumeration. The flag should be always set correctly by the serialized data, but it may fail. So, | |
3595 | * let's always set the flag here for safety. */ | |
3596 | m->honor_device_enumeration = true; | |
3597 | ||
5ce5e1ad | 3598 | manager_ready(m); |
8936a5e3 | 3599 | |
71445ae7 | 3600 | m->send_reloading_done = true; |
6a33af40 | 3601 | return 0; |
a16e1123 LP |
3602 | } |
3603 | ||
fdf20a31 | 3604 | void manager_reset_failed(Manager *m) { |
5632e374 LP |
3605 | Unit *u; |
3606 | Iterator i; | |
3607 | ||
3608 | assert(m); | |
3609 | ||
3610 | HASHMAP_FOREACH(u, m->units, i) | |
fdf20a31 | 3611 | unit_reset_failed(u); |
5632e374 LP |
3612 | } |
3613 | ||
31afa0a4 | 3614 | bool manager_unit_inactive_or_pending(Manager *m, const char *name) { |
8f6df3fa LP |
3615 | Unit *u; |
3616 | ||
3617 | assert(m); | |
3618 | assert(name); | |
3619 | ||
3620 | /* Returns true if the unit is inactive or going down */ | |
bd0af849 ZJS |
3621 | u = manager_get_unit(m, name); |
3622 | if (!u) | |
8f6df3fa LP |
3623 | return true; |
3624 | ||
31afa0a4 | 3625 | return unit_inactive_or_pending(u); |
8f6df3fa LP |
3626 | } |
3627 | ||
d8eb10d6 ZJS |
3628 | static void log_taint_string(Manager *m) { |
3629 | _cleanup_free_ char *taint = NULL; | |
3630 | ||
3631 | assert(m); | |
3632 | ||
3633 | if (MANAGER_IS_USER(m) || m->taint_logged) | |
3634 | return; | |
3635 | ||
3636 | m->taint_logged = true; /* only check for taint once */ | |
3637 | ||
3638 | taint = manager_taint_string(m); | |
3639 | if (isempty(taint)) | |
3640 | return; | |
3641 | ||
3642 | log_struct(LOG_NOTICE, | |
3643 | LOG_MESSAGE("System is tainted: %s", taint), | |
3644 | "TAINT=%s", taint, | |
a1230ff9 | 3645 | "MESSAGE_ID=" SD_MESSAGE_TAINTED_STR); |
d8eb10d6 ZJS |
3646 | } |
3647 | ||
56dacdbc | 3648 | static void manager_notify_finished(Manager *m) { |
7ceba241 | 3649 | char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; |
915b3753 | 3650 | usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec; |
b0c918b9 | 3651 | |
638cece4 | 3652 | if (MANAGER_IS_TEST_RUN(m)) |
b0c918b9 LP |
3653 | return; |
3654 | ||
463d0d15 | 3655 | if (MANAGER_IS_SYSTEM(m) && detect_container() <= 0) { |
dd1db3c2 | 3656 | char ts[FORMAT_TIMESPAN_MAX]; |
dc3c9f5e ZJS |
3657 | char buf[FORMAT_TIMESPAN_MAX + STRLEN(" (firmware) + ") + FORMAT_TIMESPAN_MAX + STRLEN(" (loader) + ")] |
3658 | = {}; | |
3659 | char *p = buf; | |
3660 | size_t size = sizeof buf; | |
e03ae661 | 3661 | |
9f9f0342 LP |
3662 | /* Note that MANAGER_TIMESTAMP_KERNEL's monotonic value is always at 0, and |
3663 | * MANAGER_TIMESTAMP_FIRMWARE's and MANAGER_TIMESTAMP_LOADER's monotonic value should be considered | |
915b3753 LP |
3664 | * negative values. */ |
3665 | ||
9f9f0342 LP |
3666 | firmware_usec = m->timestamps[MANAGER_TIMESTAMP_FIRMWARE].monotonic - m->timestamps[MANAGER_TIMESTAMP_LOADER].monotonic; |
3667 | loader_usec = m->timestamps[MANAGER_TIMESTAMP_LOADER].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
3668 | userspace_usec = m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic - m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic; | |
3669 | total_usec = m->timestamps[MANAGER_TIMESTAMP_FIRMWARE].monotonic + m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic; | |
18fa6b27 | 3670 | |
dd1db3c2 YW |
3671 | if (firmware_usec > 0) |
3672 | size = strpcpyf(&p, size, "%s (firmware) + ", format_timespan(ts, sizeof(ts), firmware_usec, USEC_PER_MSEC)); | |
3673 | if (loader_usec > 0) | |
3674 | size = strpcpyf(&p, size, "%s (loader) + ", format_timespan(ts, sizeof(ts), loader_usec, USEC_PER_MSEC)); | |
3675 | ||
9f9f0342 | 3676 | if (dual_timestamp_is_set(&m->timestamps[MANAGER_TIMESTAMP_INITRD])) { |
18fa6b27 | 3677 | |
9f9f0342 LP |
3678 | /* The initrd case on bare-metal*/ |
3679 | kernel_usec = m->timestamps[MANAGER_TIMESTAMP_INITRD].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
3680 | initrd_usec = m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic - m->timestamps[MANAGER_TIMESTAMP_INITRD].monotonic; | |
18fa6b27 | 3681 | |
e12919e8 | 3682 | log_struct(LOG_INFO, |
2b044526 | 3683 | "MESSAGE_ID=" SD_MESSAGE_STARTUP_FINISHED_STR, |
e12919e8 LP |
3684 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
3685 | "INITRD_USEC="USEC_FMT, initrd_usec, | |
3686 | "USERSPACE_USEC="USEC_FMT, userspace_usec, | |
dd1db3c2 YW |
3687 | LOG_MESSAGE("Startup finished in %s%s (kernel) + %s (initrd) + %s (userspace) = %s.", |
3688 | buf, | |
e2cc6eca LP |
3689 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
3690 | format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC), | |
3691 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
a1230ff9 | 3692 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
18fa6b27 | 3693 | } else { |
9f9f0342 LP |
3694 | /* The initrd-less case on bare-metal*/ |
3695 | ||
3696 | kernel_usec = m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic - m->timestamps[MANAGER_TIMESTAMP_KERNEL].monotonic; | |
18fa6b27 LP |
3697 | initrd_usec = 0; |
3698 | ||
81270860 | 3699 | log_struct(LOG_INFO, |
2b044526 | 3700 | "MESSAGE_ID=" SD_MESSAGE_STARTUP_FINISHED_STR, |
e12919e8 | 3701 | "KERNEL_USEC="USEC_FMT, kernel_usec, |
ccd06097 | 3702 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
dd1db3c2 YW |
3703 | LOG_MESSAGE("Startup finished in %s%s (kernel) + %s (userspace) = %s.", |
3704 | buf, | |
e2cc6eca LP |
3705 | format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC), |
3706 | format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC), | |
a1230ff9 | 3707 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
e12919e8 LP |
3708 | } |
3709 | } else { | |
4adf314b | 3710 | /* The container and --user case */ |
e12919e8 | 3711 | firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; |
9f9f0342 | 3712 | total_usec = userspace_usec = m->timestamps[MANAGER_TIMESTAMP_FINISH].monotonic - m->timestamps[MANAGER_TIMESTAMP_USERSPACE].monotonic; |
e12919e8 LP |
3713 | |
3714 | log_struct(LOG_INFO, | |
2b044526 | 3715 | "MESSAGE_ID=" SD_MESSAGE_USER_STARTUP_FINISHED_STR, |
e12919e8 | 3716 | "USERSPACE_USEC="USEC_FMT, userspace_usec, |
e2cc6eca | 3717 | LOG_MESSAGE("Startup finished in %s.", |
a1230ff9 | 3718 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC))); |
18fa6b27 | 3719 | } |
b0c918b9 | 3720 | |
718db961 | 3721 | bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); |
530345e7 LP |
3722 | |
3723 | sd_notifyf(false, | |
0c2826c6 ZJS |
3724 | m->ready_sent ? "STATUS=Startup finished in %s." |
3725 | : "READY=1\n" | |
3726 | "STATUS=Startup finished in %s.", | |
2fa4092c | 3727 | format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); |
0c2826c6 | 3728 | m->ready_sent = true; |
d8eb10d6 ZJS |
3729 | |
3730 | log_taint_string(m); | |
b0c918b9 LP |
3731 | } |
3732 | ||
4adf314b LP |
3733 | static void manager_send_ready(Manager *m) { |
3734 | assert(m); | |
3735 | ||
3736 | /* We send READY=1 on reaching basic.target only when running in --user mode. */ | |
3737 | if (!MANAGER_IS_USER(m) || m->ready_sent) | |
3738 | return; | |
3739 | ||
3740 | m->ready_sent = true; | |
3741 | ||
3742 | sd_notifyf(false, | |
3743 | "READY=1\n" | |
3744 | "STATUS=Reached " SPECIAL_BASIC_TARGET "."); | |
3745 | } | |
3746 | ||
3747 | static void manager_check_basic_target(Manager *m) { | |
3748 | Unit *u; | |
3749 | ||
3750 | assert(m); | |
3751 | ||
3752 | /* Small shortcut */ | |
3753 | if (m->ready_sent && m->taint_logged) | |
3754 | return; | |
3755 | ||
3756 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
3757 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
3758 | return; | |
3759 | ||
3760 | /* For user managers, send out READY=1 as soon as we reach basic.target */ | |
3761 | manager_send_ready(m); | |
3762 | ||
3763 | /* Log the taint string as soon as we reach basic.target */ | |
3764 | log_taint_string(m); | |
3765 | } | |
3766 | ||
56dacdbc | 3767 | void manager_check_finished(Manager *m) { |
56dacdbc ZJS |
3768 | assert(m); |
3769 | ||
2c289ea8 | 3770 | if (MANAGER_IS_RELOADING(m)) |
aad1976f LP |
3771 | return; |
3772 | ||
4259d202 LP |
3773 | /* Verify that we have entered the event loop already, and not left it again. */ |
3774 | if (!MANAGER_IS_RUNNING(m)) | |
9771b62d LP |
3775 | return; |
3776 | ||
4adf314b | 3777 | manager_check_basic_target(m); |
0c2826c6 | 3778 | |
56dacdbc | 3779 | if (hashmap_size(m->jobs) > 0) { |
56dacdbc | 3780 | if (m->jobs_in_progress_event_source) |
2ae56591 | 3781 | /* Ignore any failure, this is only for feedback */ |
1b4154a8 ZJS |
3782 | (void) sd_event_source_set_time(m->jobs_in_progress_event_source, |
3783 | manager_watch_jobs_next_time(m)); | |
56dacdbc ZJS |
3784 | return; |
3785 | } | |
3786 | ||
7365a296 | 3787 | manager_flip_auto_status(m, false, "boot finished"); |
56dacdbc ZJS |
3788 | |
3789 | /* Notify Type=idle units that we are done now */ | |
56dacdbc ZJS |
3790 | manager_close_idle_pipe(m); |
3791 | ||
3792 | /* Turn off confirm spawn now */ | |
7d5ceb64 | 3793 | m->confirm_spawn = NULL; |
56dacdbc ZJS |
3794 | |
3795 | /* No need to update ask password status when we're going non-interactive */ | |
3796 | manager_close_ask_password(m); | |
3797 | ||
3798 | /* This is no longer the first boot */ | |
3799 | manager_set_first_boot(m, false); | |
3800 | ||
49d5666c | 3801 | if (MANAGER_IS_FINISHED(m)) |
56dacdbc ZJS |
3802 | return; |
3803 | ||
9f9f0342 | 3804 | dual_timestamp_get(m->timestamps + MANAGER_TIMESTAMP_FINISH); |
56dacdbc ZJS |
3805 | |
3806 | manager_notify_finished(m); | |
3807 | ||
e7ab4d1a | 3808 | manager_invalidate_startup_units(m); |
56dacdbc ZJS |
3809 | } |
3810 | ||
64691d20 ZJS |
3811 | static bool generator_path_any(const char* const* paths) { |
3812 | char **path; | |
3813 | bool found = false; | |
3814 | ||
3815 | /* Optimize by skipping the whole process by not creating output directories | |
3816 | * if no generators are found. */ | |
3817 | STRV_FOREACH(path, (char**) paths) | |
3818 | if (access(*path, F_OK) == 0) | |
3819 | found = true; | |
3820 | else if (errno != ENOENT) | |
3821 | log_warning_errno(errno, "Failed to open generator directory %s: %m", *path); | |
3822 | ||
3823 | return found; | |
3824 | } | |
3825 | ||
64691d20 ZJS |
3826 | static int manager_run_environment_generators(Manager *m) { |
3827 | char **tmp = NULL; /* this is only used in the forked process, no cleanup here */ | |
cccf5703 | 3828 | _cleanup_strv_free_ char **paths = NULL; |
1ad6e8b3 LP |
3829 | void* args[] = { |
3830 | [STDOUT_GENERATE] = &tmp, | |
3831 | [STDOUT_COLLECT] = &tmp, | |
3832 | [STDOUT_CONSUME] = &m->transient_environment, | |
3833 | }; | |
e3b8d063 | 3834 | int r; |
64691d20 | 3835 | |
638cece4 | 3836 | if (MANAGER_IS_TEST_RUN(m) && !(m->test_run_flags & MANAGER_TEST_RUN_ENV_GENERATORS)) |
e0a3da1f ZJS |
3837 | return 0; |
3838 | ||
cccf5703 BB |
3839 | paths = env_generator_binary_paths(MANAGER_IS_SYSTEM(m)); |
3840 | if (!paths) | |
3841 | return log_oom(); | |
64691d20 | 3842 | |
cccf5703 | 3843 | if (!generator_path_any((const char* const*) paths)) |
64691d20 ZJS |
3844 | return 0; |
3845 | ||
e3b8d063 | 3846 | RUN_WITH_UMASK(0022) |
cccf5703 | 3847 | r = execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, gather_environment, |
4b05f0c9 | 3848 | args, NULL, m->transient_environment, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); |
e3b8d063 | 3849 | return r; |
64691d20 ZJS |
3850 | } |
3851 | ||
e801700e | 3852 | static int manager_run_generators(Manager *m) { |
f42348ac | 3853 | _cleanup_strv_free_ char **paths = NULL; |
07719a21 | 3854 | const char *argv[5]; |
07719a21 | 3855 | int r; |
5a1e9937 LP |
3856 | |
3857 | assert(m); | |
3858 | ||
638cece4 | 3859 | if (MANAGER_IS_TEST_RUN(m) && !(m->test_run_flags & MANAGER_TEST_RUN_GENERATORS)) |
e0a3da1f ZJS |
3860 | return 0; |
3861 | ||
9183df70 | 3862 | paths = generator_binary_paths(m->unit_file_scope); |
e801700e ZJS |
3863 | if (!paths) |
3864 | return log_oom(); | |
5a1e9937 | 3865 | |
64691d20 ZJS |
3866 | if (!generator_path_any((const char* const*) paths)) |
3867 | return 0; | |
5a1e9937 | 3868 | |
cd64fd56 | 3869 | r = lookup_paths_mkdir_generator(&m->lookup_paths); |
7eb4f326 LP |
3870 | if (r < 0) { |
3871 | log_error_errno(r, "Failed to create generator directories: %m"); | |
07719a21 | 3872 | goto finish; |
7eb4f326 | 3873 | } |
5a1e9937 | 3874 | |
83cc030f | 3875 | argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */ |
a3c4eb07 LP |
3876 | argv[1] = m->lookup_paths.generator; |
3877 | argv[2] = m->lookup_paths.generator_early; | |
3878 | argv[3] = m->lookup_paths.generator_late; | |
07719a21 | 3879 | argv[4] = NULL; |
5a1e9937 | 3880 | |
718db961 | 3881 | RUN_WITH_UMASK(0022) |
4b05f0c9 MK |
3882 | (void) execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, NULL, NULL, |
3883 | (char**) argv, m->transient_environment, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); | |
7eb4f326 LP |
3884 | |
3885 | r = 0; | |
5a1e9937 | 3886 | |
718db961 | 3887 | finish: |
cd64fd56 | 3888 | lookup_paths_trim_generator(&m->lookup_paths); |
e801700e | 3889 | return r; |
5a1e9937 LP |
3890 | } |
3891 | ||
1ad6e8b3 LP |
3892 | int manager_transient_environment_add(Manager *m, char **plus) { |
3893 | char **a; | |
3894 | ||
3895 | assert(m); | |
3896 | ||
3897 | if (strv_isempty(plus)) | |
3898 | return 0; | |
3899 | ||
3900 | a = strv_env_merge(2, m->transient_environment, plus); | |
3901 | if (!a) | |
2fbbbf9a | 3902 | return log_oom(); |
1ad6e8b3 LP |
3903 | |
3904 | sanitize_environment(a); | |
3905 | ||
3906 | return strv_free_and_replace(m->transient_environment, a); | |
3907 | } | |
3908 | ||
3909 | int manager_client_environment_modify( | |
3910 | Manager *m, | |
3911 | char **minus, | |
3912 | char **plus) { | |
3913 | ||
718db961 | 3914 | char **a = NULL, **b = NULL, **l; |
1ad6e8b3 | 3915 | |
97d0e5f8 | 3916 | assert(m); |
bcd8e6d1 | 3917 | |
1ad6e8b3 LP |
3918 | if (strv_isempty(minus) && strv_isempty(plus)) |
3919 | return 0; | |
3920 | ||
3921 | l = m->client_environment; | |
bcd8e6d1 | 3922 | |
718db961 LP |
3923 | if (!strv_isempty(minus)) { |
3924 | a = strv_env_delete(l, 1, minus); | |
3925 | if (!a) | |
3926 | return -ENOMEM; | |
3927 | ||
3928 | l = a; | |
3929 | } | |
3930 | ||
3931 | if (!strv_isempty(plus)) { | |
3932 | b = strv_env_merge(2, l, plus); | |
aa9f8a30 AH |
3933 | if (!b) { |
3934 | strv_free(a); | |
718db961 | 3935 | return -ENOMEM; |
aa9f8a30 | 3936 | } |
bcd8e6d1 | 3937 | |
718db961 LP |
3938 | l = b; |
3939 | } | |
3940 | ||
1ad6e8b3 LP |
3941 | if (m->client_environment != l) |
3942 | strv_free(m->client_environment); | |
3943 | ||
718db961 LP |
3944 | if (a != l) |
3945 | strv_free(a); | |
3946 | if (b != l) | |
3947 | strv_free(b); | |
3948 | ||
1ad6e8b3 LP |
3949 | m->client_environment = sanitize_environment(l); |
3950 | return 0; | |
3951 | } | |
3952 | ||
3953 | int manager_get_effective_environment(Manager *m, char ***ret) { | |
3954 | char **l; | |
3955 | ||
3956 | assert(m); | |
3957 | assert(ret); | |
3958 | ||
3959 | l = strv_env_merge(2, m->transient_environment, m->client_environment); | |
3960 | if (!l) | |
3961 | return -ENOMEM; | |
f069efb4 | 3962 | |
1ad6e8b3 | 3963 | *ret = l; |
97d0e5f8 UTL |
3964 | return 0; |
3965 | } | |
3966 | ||
c93ff2e9 FC |
3967 | int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { |
3968 | int i; | |
3969 | ||
3970 | assert(m); | |
3971 | ||
517d56b1 | 3972 | for (i = 0; i < _RLIMIT_MAX; i++) { |
d9814c76 EV |
3973 | m->rlimit[i] = mfree(m->rlimit[i]); |
3974 | ||
07719a21 LP |
3975 | if (!default_rlimit[i]) |
3976 | continue; | |
c93ff2e9 | 3977 | |
07719a21 LP |
3978 | m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1); |
3979 | if (!m->rlimit[i]) | |
3ce40911 | 3980 | return log_oom(); |
c93ff2e9 FC |
3981 | } |
3982 | ||
3983 | return 0; | |
3984 | } | |
3985 | ||
8559b3b7 LP |
3986 | void manager_recheck_dbus(Manager *m) { |
3987 | assert(m); | |
3988 | ||
3989 | /* Connects to the bus if the dbus service and socket are running. If we are running in user mode this is all | |
3990 | * it does. In system mode we'll also connect to the system bus (which will most likely just reuse the | |
3991 | * connection of the API bus). That's because the system bus after all runs as service of the system instance, | |
3992 | * while in the user instance we can assume it's already there. */ | |
3993 | ||
31dc1ca3 LP |
3994 | if (MANAGER_IS_RELOADING(m)) |
3995 | return; /* don't check while we are reloading… */ | |
3996 | ||
8559b3b7 LP |
3997 | if (manager_dbus_is_running(m, false)) { |
3998 | (void) bus_init_api(m); | |
3999 | ||
4000 | if (MANAGER_IS_SYSTEM(m)) | |
4001 | (void) bus_init_system(m); | |
4002 | } else { | |
4003 | (void) bus_done_api(m); | |
4004 | ||
4005 | if (MANAGER_IS_SYSTEM(m)) | |
4006 | (void) bus_done_system(m); | |
4007 | } | |
4008 | } | |
4009 | ||
d075092f | 4010 | static bool manager_journal_is_running(Manager *m) { |
f1dd0c3f LP |
4011 | Unit *u; |
4012 | ||
4013 | assert(m); | |
4014 | ||
638cece4 | 4015 | if (MANAGER_IS_TEST_RUN(m)) |
7d814a19 LP |
4016 | return false; |
4017 | ||
d075092f | 4018 | /* If we are the user manager we can safely assume that the journal is up */ |
463d0d15 | 4019 | if (!MANAGER_IS_SYSTEM(m)) |
d075092f | 4020 | return true; |
f1dd0c3f | 4021 | |
d075092f | 4022 | /* Check that the socket is not only up, but in RUNNING state */ |
731a676c | 4023 | u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); |
d075092f LP |
4024 | if (!u) |
4025 | return false; | |
4026 | if (SOCKET(u)->state != SOCKET_RUNNING) | |
4027 | return false; | |
f1dd0c3f | 4028 | |
d075092f | 4029 | /* Similar, check if the daemon itself is fully up, too */ |
731a676c | 4030 | u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); |
d075092f LP |
4031 | if (!u) |
4032 | return false; | |
217677ab | 4033 | if (!IN_SET(SERVICE(u)->state, SERVICE_RELOAD, SERVICE_RUNNING)) |
d075092f LP |
4034 | return false; |
4035 | ||
4036 | return true; | |
4037 | } | |
4038 | ||
6123dfaa ZJS |
4039 | void disable_printk_ratelimit(void) { |
4040 | /* Disable kernel's printk ratelimit. | |
4041 | * | |
4042 | * Logging to /dev/kmsg is most useful during early boot and shutdown, where normal logging | |
4043 | * mechanisms are not available. The semantics of this sysctl are such that any kernel command-line | |
4044 | * setting takes precedence. */ | |
4045 | int r; | |
4046 | ||
4047 | r = sysctl_write("kernel/printk_devkmsg", "on"); | |
4048 | if (r < 0) | |
4049 | log_debug_errno(r, "Failed to set sysctl kernel.printk_devkmsg=on: %m"); | |
4050 | } | |
4051 | ||
d075092f LP |
4052 | void manager_recheck_journal(Manager *m) { |
4053 | ||
4054 | assert(m); | |
4055 | ||
4056 | /* Don't bother with this unless we are in the special situation of being PID 1 */ | |
4057 | if (getpid_cached() != 1) | |
731a676c | 4058 | return; |
f1dd0c3f | 4059 | |
31dc1ca3 LP |
4060 | /* Don't check this while we are reloading, things might still change */ |
4061 | if (MANAGER_IS_RELOADING(m)) | |
4062 | return; | |
4063 | ||
cedf5088 LP |
4064 | /* The journal is fully and entirely up? If so, let's permit logging to it, if that's configured. If the |
4065 | * journal is down, don't ever log to it, otherwise we might end up deadlocking ourselves as we might trigger | |
4066 | * an activation ourselves we can't fulfill. */ | |
4067 | log_set_prohibit_ipc(!manager_journal_is_running(m)); | |
cc2b9e6b | 4068 | log_open(); |
f1dd0c3f LP |
4069 | } |
4070 | ||
7365a296 | 4071 | void manager_set_show_status(Manager *m, ShowStatus mode, const char *reason) { |
27d340c7 | 4072 | assert(m); |
0d066dd1 | 4073 | assert(mode >= 0 && mode < _SHOW_STATUS_MAX); |
27d340c7 | 4074 | |
463d0d15 | 4075 | if (!MANAGER_IS_SYSTEM(m)) |
27d340c7 LP |
4076 | return; |
4077 | ||
ef15d3e1 ZJS |
4078 | if (mode == m->show_status) |
4079 | return; | |
4080 | ||
4081 | bool enabled = IN_SET(mode, SHOW_STATUS_TEMPORARY, SHOW_STATUS_YES); | |
4082 | log_debug("%s (%s) showing of status (%s).", | |
4083 | enabled ? "Enabling" : "Disabling", | |
4084 | strna(show_status_to_string(mode)), | |
4085 | reason); | |
d450b6f2 | 4086 | m->show_status = mode; |
27d340c7 | 4087 | |
5ca02bfc | 4088 | if (enabled) |
ac5b0c13 | 4089 | (void) touch("/run/systemd/show-status"); |
27d340c7 | 4090 | else |
ac5b0c13 | 4091 | (void) unlink("/run/systemd/show-status"); |
27d340c7 LP |
4092 | } |
4093 | ||
127d5fd1 | 4094 | static bool manager_get_show_status(Manager *m, StatusType type) { |
27d340c7 LP |
4095 | assert(m); |
4096 | ||
463d0d15 | 4097 | if (!MANAGER_IS_SYSTEM(m)) |
27d340c7 LP |
4098 | return false; |
4099 | ||
31a7eb86 ZJS |
4100 | if (m->no_console_output) |
4101 | return false; | |
4102 | ||
d81afec1 | 4103 | if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING)) |
08510627 LP |
4104 | return false; |
4105 | ||
e46b13c8 | 4106 | /* If we cannot find out the status properly, just proceed. */ |
ebc5788e | 4107 | if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0) |
e46b13c8 ZJS |
4108 | return false; |
4109 | ||
5bcf34eb ZJS |
4110 | if (type == STATUS_TYPE_NOTICE && m->show_status != SHOW_STATUS_NO) |
4111 | return true; | |
4112 | ||
5ca02bfc | 4113 | return show_status_on(m->show_status); |
27d340c7 | 4114 | } |
68b29a9f | 4115 | |
7d5ceb64 FB |
4116 | const char *manager_get_confirm_spawn(Manager *m) { |
4117 | static int last_errno = 0; | |
7d5ceb64 FB |
4118 | struct stat st; |
4119 | int r; | |
4120 | ||
ea758432 LP |
4121 | assert(m); |
4122 | ||
7d5ceb64 FB |
4123 | /* Here's the deal: we want to test the validity of the console but don't want |
4124 | * PID1 to go through the whole console process which might block. But we also | |
4125 | * want to warn the user only once if something is wrong with the console so we | |
4126 | * cannot do the sanity checks after spawning our children. So here we simply do | |
4127 | * really basic tests to hopefully trap common errors. | |
4128 | * | |
4129 | * If the console suddenly disappear at the time our children will really it | |
4130 | * then they will simply fail to acquire it and a positive answer will be | |
4131 | * assumed. New children will fallback to /dev/console though. | |
4132 | * | |
4133 | * Note: TTYs are devices that can come and go any time, and frequently aren't | |
4134 | * available yet during early boot (consider a USB rs232 dongle...). If for any | |
4135 | * reason the configured console is not ready, we fallback to the default | |
4136 | * console. */ | |
4137 | ||
ea758432 LP |
4138 | if (!m->confirm_spawn || path_equal(m->confirm_spawn, "/dev/console")) |
4139 | return m->confirm_spawn; | |
7d5ceb64 | 4140 | |
ea758432 LP |
4141 | if (stat(m->confirm_spawn, &st) < 0) { |
4142 | r = -errno; | |
7d5ceb64 | 4143 | goto fail; |
ea758432 | 4144 | } |
7d5ceb64 FB |
4145 | |
4146 | if (!S_ISCHR(st.st_mode)) { | |
ea758432 | 4147 | r = -ENOTTY; |
7d5ceb64 FB |
4148 | goto fail; |
4149 | } | |
4150 | ||
4151 | last_errno = 0; | |
ea758432 LP |
4152 | return m->confirm_spawn; |
4153 | ||
7d5ceb64 | 4154 | fail: |
ea758432 LP |
4155 | if (last_errno != r) |
4156 | last_errno = log_warning_errno(r, "Failed to open %s, using default console: %m", m->confirm_spawn); | |
4157 | ||
7d5ceb64 FB |
4158 | return "/dev/console"; |
4159 | } | |
4160 | ||
e2680723 LP |
4161 | void manager_set_first_boot(Manager *m, bool b) { |
4162 | assert(m); | |
4163 | ||
463d0d15 | 4164 | if (!MANAGER_IS_SYSTEM(m)) |
e2680723 LP |
4165 | return; |
4166 | ||
ae2a2c53 LP |
4167 | if (m->first_boot != (int) b) { |
4168 | if (b) | |
4169 | (void) touch("/run/systemd/first-boot"); | |
4170 | else | |
4171 | (void) unlink("/run/systemd/first-boot"); | |
4172 | } | |
e2680723 | 4173 | |
ae2a2c53 | 4174 | m->first_boot = b; |
e2680723 LP |
4175 | } |
4176 | ||
b0eb2944 FB |
4177 | void manager_disable_confirm_spawn(void) { |
4178 | (void) touch("/run/systemd/confirm_spawn_disabled"); | |
4179 | } | |
4180 | ||
4181 | bool manager_is_confirm_spawn_disabled(Manager *m) { | |
4182 | if (!m->confirm_spawn) | |
4183 | return true; | |
4184 | ||
4185 | return access("/run/systemd/confirm_spawn_disabled", F_OK) >= 0; | |
4186 | } | |
4187 | ||
127d5fd1 | 4188 | void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { |
25cee550 MS |
4189 | va_list ap; |
4190 | ||
cb6531be ZJS |
4191 | /* If m is NULL, assume we're after shutdown and let the messages through. */ |
4192 | ||
4193 | if (m && !manager_get_show_status(m, type)) | |
25cee550 MS |
4194 | return; |
4195 | ||
03b717a3 MS |
4196 | /* XXX We should totally drop the check for ephemeral here |
4197 | * and thus effectively make 'Type=idle' pointless. */ | |
cb6531be | 4198 | if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0) |
03b717a3 MS |
4199 | return; |
4200 | ||
25cee550 | 4201 | va_start(ap, format); |
a885727a | 4202 | status_vprintf(status, SHOW_STATUS_ELLIPSIZE|(type == STATUS_TYPE_EPHEMERAL ? SHOW_STATUS_EPHEMERAL : 0), format, ap); |
25cee550 MS |
4203 | va_end(ap); |
4204 | } | |
4205 | ||
a57f7e2c LP |
4206 | Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { |
4207 | char p[strlen(path)+1]; | |
4208 | ||
4209 | assert(m); | |
4210 | assert(path); | |
4211 | ||
4212 | strcpy(p, path); | |
858d36c1 | 4213 | path_simplify(p, false); |
a57f7e2c LP |
4214 | |
4215 | return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); | |
4216 | } | |
e66cf1a3 | 4217 | |
5269eb6b | 4218 | int manager_update_failed_units(Manager *m, Unit *u, bool failed) { |
03455c28 | 4219 | unsigned size; |
5269eb6b | 4220 | int r; |
03455c28 LDM |
4221 | |
4222 | assert(m); | |
4223 | assert(u->manager == m); | |
4224 | ||
4225 | size = set_size(m->failed_units); | |
4226 | ||
9fff8981 | 4227 | if (failed) { |
5269eb6b LP |
4228 | r = set_ensure_allocated(&m->failed_units, NULL); |
4229 | if (r < 0) | |
4230 | return log_oom(); | |
4231 | ||
9fff8981 | 4232 | if (set_put(m->failed_units, u) < 0) |
5269eb6b | 4233 | return log_oom(); |
9fff8981 | 4234 | } else |
5269eb6b | 4235 | (void) set_remove(m->failed_units, u); |
03455c28 LDM |
4236 | |
4237 | if (set_size(m->failed_units) != size) | |
4238 | bus_manager_send_change_signal(m); | |
5269eb6b LP |
4239 | |
4240 | return 0; | |
03455c28 LDM |
4241 | } |
4242 | ||
f755e3b7 LP |
4243 | ManagerState manager_state(Manager *m) { |
4244 | Unit *u; | |
4245 | ||
4246 | assert(m); | |
4247 | ||
f9d29f6d JB |
4248 | /* Is the special shutdown target active or queued? If so, we are in shutdown state */ |
4249 | u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); | |
4250 | if (u && unit_active_or_pending(u)) | |
4251 | return MANAGER_STOPPING; | |
4252 | ||
f755e3b7 | 4253 | /* Did we ever finish booting? If not then we are still starting up */ |
49d5666c | 4254 | if (!MANAGER_IS_FINISHED(m)) { |
d81afec1 LP |
4255 | |
4256 | u = manager_get_unit(m, SPECIAL_BASIC_TARGET); | |
4257 | if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) | |
4258 | return MANAGER_INITIALIZING; | |
4259 | ||
f755e3b7 | 4260 | return MANAGER_STARTING; |
d81afec1 | 4261 | } |
f755e3b7 | 4262 | |
45a7b16b LP |
4263 | if (MANAGER_IS_SYSTEM(m)) { |
4264 | /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ | |
4265 | u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); | |
4266 | if (u && unit_active_or_pending(u)) | |
4267 | return MANAGER_MAINTENANCE; | |
f755e3b7 | 4268 | |
45a7b16b LP |
4269 | u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); |
4270 | if (u && unit_active_or_pending(u)) | |
4271 | return MANAGER_MAINTENANCE; | |
4272 | } | |
f755e3b7 LP |
4273 | |
4274 | /* Are there any failed units? If so, we are in degraded mode */ | |
4275 | if (set_size(m->failed_units) > 0) | |
4276 | return MANAGER_DEGRADED; | |
4277 | ||
4278 | return MANAGER_RUNNING; | |
4279 | } | |
4280 | ||
00d9ef85 LP |
4281 | #define DESTROY_IPC_FLAG (UINT32_C(1) << 31) |
4282 | ||
4283 | static void manager_unref_uid_internal( | |
4284 | Manager *m, | |
4285 | Hashmap **uid_refs, | |
4286 | uid_t uid, | |
4287 | bool destroy_now, | |
4288 | int (*_clean_ipc)(uid_t uid)) { | |
4289 | ||
4290 | uint32_t c, n; | |
4291 | ||
4292 | assert(m); | |
4293 | assert(uid_refs); | |
4294 | assert(uid_is_valid(uid)); | |
4295 | assert(_clean_ipc); | |
4296 | ||
4297 | /* A generic implementation, covering both manager_unref_uid() and manager_unref_gid(), under the assumption | |
4298 | * that uid_t and gid_t are actually defined the same way, with the same validity rules. | |
4299 | * | |
4300 | * We store a hashmap where the UID/GID is they key and the value is a 32bit reference counter, whose highest | |
4301 | * bit is used as flag for marking UIDs/GIDs whose IPC objects to remove when the last reference to the UID/GID | |
4302 | * is dropped. The flag is set to on, once at least one reference from a unit where RemoveIPC= is set is added | |
4303 | * on a UID/GID. It is reset when the UID's/GID's reference counter drops to 0 again. */ | |
4304 | ||
4305 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
4306 | assert_cc(UID_INVALID == (uid_t) GID_INVALID); | |
4307 | ||
4308 | if (uid == 0) /* We don't keep track of root, and will never destroy it */ | |
4309 | return; | |
4310 | ||
4311 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4312 | ||
4313 | n = c & ~DESTROY_IPC_FLAG; | |
4314 | assert(n > 0); | |
4315 | n--; | |
4316 | ||
4317 | if (destroy_now && n == 0) { | |
4318 | hashmap_remove(*uid_refs, UID_TO_PTR(uid)); | |
4319 | ||
4320 | if (c & DESTROY_IPC_FLAG) { | |
4321 | log_debug("%s " UID_FMT " is no longer referenced, cleaning up its IPC.", | |
4322 | _clean_ipc == clean_ipc_by_uid ? "UID" : "GID", | |
4323 | uid); | |
4324 | (void) _clean_ipc(uid); | |
4325 | } | |
4326 | } else { | |
4327 | c = n | (c & DESTROY_IPC_FLAG); | |
4328 | assert_se(hashmap_update(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)) >= 0); | |
4329 | } | |
4330 | } | |
4331 | ||
4332 | void manager_unref_uid(Manager *m, uid_t uid, bool destroy_now) { | |
4333 | manager_unref_uid_internal(m, &m->uid_refs, uid, destroy_now, clean_ipc_by_uid); | |
4334 | } | |
4335 | ||
4336 | void manager_unref_gid(Manager *m, gid_t gid, bool destroy_now) { | |
4337 | manager_unref_uid_internal(m, &m->gid_refs, (uid_t) gid, destroy_now, clean_ipc_by_gid); | |
4338 | } | |
4339 | ||
4340 | static int manager_ref_uid_internal( | |
4341 | Manager *m, | |
4342 | Hashmap **uid_refs, | |
4343 | uid_t uid, | |
4344 | bool clean_ipc) { | |
4345 | ||
4346 | uint32_t c, n; | |
4347 | int r; | |
4348 | ||
4349 | assert(m); | |
4350 | assert(uid_refs); | |
4351 | assert(uid_is_valid(uid)); | |
4352 | ||
4353 | /* A generic implementation, covering both manager_ref_uid() and manager_ref_gid(), under the assumption | |
4354 | * that uid_t and gid_t are actually defined the same way, with the same validity rules. */ | |
4355 | ||
4356 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
4357 | assert_cc(UID_INVALID == (uid_t) GID_INVALID); | |
4358 | ||
4359 | if (uid == 0) /* We don't keep track of root, and will never destroy it */ | |
4360 | return 0; | |
4361 | ||
4362 | r = hashmap_ensure_allocated(uid_refs, &trivial_hash_ops); | |
4363 | if (r < 0) | |
4364 | return r; | |
4365 | ||
4366 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4367 | ||
4368 | n = c & ~DESTROY_IPC_FLAG; | |
4369 | n++; | |
4370 | ||
4371 | if (n & DESTROY_IPC_FLAG) /* check for overflow */ | |
4372 | return -EOVERFLOW; | |
4373 | ||
4374 | c = n | (c & DESTROY_IPC_FLAG) | (clean_ipc ? DESTROY_IPC_FLAG : 0); | |
4375 | ||
4376 | return hashmap_replace(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)); | |
4377 | } | |
4378 | ||
4379 | int manager_ref_uid(Manager *m, uid_t uid, bool clean_ipc) { | |
4380 | return manager_ref_uid_internal(m, &m->uid_refs, uid, clean_ipc); | |
4381 | } | |
4382 | ||
4383 | int manager_ref_gid(Manager *m, gid_t gid, bool clean_ipc) { | |
4384 | return manager_ref_uid_internal(m, &m->gid_refs, (uid_t) gid, clean_ipc); | |
4385 | } | |
4386 | ||
4387 | static void manager_vacuum_uid_refs_internal( | |
4388 | Manager *m, | |
4389 | Hashmap **uid_refs, | |
4390 | int (*_clean_ipc)(uid_t uid)) { | |
4391 | ||
4392 | Iterator i; | |
4393 | void *p, *k; | |
4394 | ||
4395 | assert(m); | |
4396 | assert(uid_refs); | |
4397 | assert(_clean_ipc); | |
4398 | ||
4399 | HASHMAP_FOREACH_KEY(p, k, *uid_refs, i) { | |
4400 | uint32_t c, n; | |
4401 | uid_t uid; | |
4402 | ||
4403 | uid = PTR_TO_UID(k); | |
4404 | c = PTR_TO_UINT32(p); | |
4405 | ||
4406 | n = c & ~DESTROY_IPC_FLAG; | |
4407 | if (n > 0) | |
4408 | continue; | |
4409 | ||
4410 | if (c & DESTROY_IPC_FLAG) { | |
4411 | log_debug("Found unreferenced %s " UID_FMT " after reload/reexec. Cleaning up.", | |
4412 | _clean_ipc == clean_ipc_by_uid ? "UID" : "GID", | |
4413 | uid); | |
4414 | (void) _clean_ipc(uid); | |
4415 | } | |
4416 | ||
4417 | assert_se(hashmap_remove(*uid_refs, k) == p); | |
4418 | } | |
4419 | } | |
4420 | ||
4421 | void manager_vacuum_uid_refs(Manager *m) { | |
4422 | manager_vacuum_uid_refs_internal(m, &m->uid_refs, clean_ipc_by_uid); | |
4423 | } | |
4424 | ||
4425 | void manager_vacuum_gid_refs(Manager *m) { | |
4426 | manager_vacuum_uid_refs_internal(m, &m->gid_refs, clean_ipc_by_gid); | |
4427 | } | |
4428 | ||
4429 | static void manager_serialize_uid_refs_internal( | |
4430 | Manager *m, | |
4431 | FILE *f, | |
4432 | Hashmap **uid_refs, | |
4433 | const char *field_name) { | |
4434 | ||
4435 | Iterator i; | |
4436 | void *p, *k; | |
4437 | ||
4438 | assert(m); | |
4439 | assert(f); | |
4440 | assert(uid_refs); | |
4441 | assert(field_name); | |
4442 | ||
4443 | /* Serialize the UID reference table. Or actually, just the IPC destruction flag of it, as the actual counter | |
4444 | * of it is better rebuild after a reload/reexec. */ | |
4445 | ||
4446 | HASHMAP_FOREACH_KEY(p, k, *uid_refs, i) { | |
4447 | uint32_t c; | |
4448 | uid_t uid; | |
4449 | ||
4450 | uid = PTR_TO_UID(k); | |
4451 | c = PTR_TO_UINT32(p); | |
4452 | ||
4453 | if (!(c & DESTROY_IPC_FLAG)) | |
4454 | continue; | |
4455 | ||
d68c645b | 4456 | (void) serialize_item_format(f, field_name, UID_FMT, uid); |
00d9ef85 LP |
4457 | } |
4458 | } | |
4459 | ||
4460 | void manager_serialize_uid_refs(Manager *m, FILE *f) { | |
4461 | manager_serialize_uid_refs_internal(m, f, &m->uid_refs, "destroy-ipc-uid"); | |
4462 | } | |
4463 | ||
4464 | void manager_serialize_gid_refs(Manager *m, FILE *f) { | |
4465 | manager_serialize_uid_refs_internal(m, f, &m->gid_refs, "destroy-ipc-gid"); | |
4466 | } | |
4467 | ||
4468 | static void manager_deserialize_uid_refs_one_internal( | |
4469 | Manager *m, | |
4470 | Hashmap** uid_refs, | |
4471 | const char *value) { | |
4472 | ||
4473 | uid_t uid; | |
4474 | uint32_t c; | |
4475 | int r; | |
4476 | ||
4477 | assert(m); | |
4478 | assert(uid_refs); | |
4479 | assert(value); | |
4480 | ||
4481 | r = parse_uid(value, &uid); | |
4482 | if (r < 0 || uid == 0) { | |
96462ae9 | 4483 | log_debug("Unable to parse UID reference serialization: " UID_FMT, uid); |
00d9ef85 LP |
4484 | return; |
4485 | } | |
4486 | ||
4487 | r = hashmap_ensure_allocated(uid_refs, &trivial_hash_ops); | |
4488 | if (r < 0) { | |
4489 | log_oom(); | |
4490 | return; | |
4491 | } | |
4492 | ||
4493 | c = PTR_TO_UINT32(hashmap_get(*uid_refs, UID_TO_PTR(uid))); | |
4494 | if (c & DESTROY_IPC_FLAG) | |
4495 | return; | |
4496 | ||
4497 | c |= DESTROY_IPC_FLAG; | |
4498 | ||
4499 | r = hashmap_replace(*uid_refs, UID_TO_PTR(uid), UINT32_TO_PTR(c)); | |
4500 | if (r < 0) { | |
b39cfe21 | 4501 | log_debug_errno(r, "Failed to add UID reference entry: %m"); |
00d9ef85 LP |
4502 | return; |
4503 | } | |
4504 | } | |
4505 | ||
4506 | void manager_deserialize_uid_refs_one(Manager *m, const char *value) { | |
4507 | manager_deserialize_uid_refs_one_internal(m, &m->uid_refs, value); | |
4508 | } | |
4509 | ||
4510 | void manager_deserialize_gid_refs_one(Manager *m, const char *value) { | |
4511 | manager_deserialize_uid_refs_one_internal(m, &m->gid_refs, value); | |
4512 | } | |
4513 | ||
4514 | int manager_dispatch_user_lookup_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) { | |
4515 | struct buffer { | |
4516 | uid_t uid; | |
4517 | gid_t gid; | |
4518 | char unit_name[UNIT_NAME_MAX+1]; | |
4519 | } _packed_ buffer; | |
4520 | ||
4521 | Manager *m = userdata; | |
4522 | ssize_t l; | |
4523 | size_t n; | |
4524 | Unit *u; | |
4525 | ||
4526 | assert_se(source); | |
4527 | assert_se(m); | |
4528 | ||
4529 | /* Invoked whenever a child process succeeded resolving its user/group to use and sent us the resulting UID/GID | |
4530 | * in a datagram. We parse the datagram here and pass it off to the unit, so that it can add a reference to the | |
4531 | * UID/GID so that it can destroy the UID/GID's IPC objects when the reference counter drops to 0. */ | |
4532 | ||
4533 | l = recv(fd, &buffer, sizeof(buffer), MSG_DONTWAIT); | |
4534 | if (l < 0) { | |
4c701096 | 4535 | if (IN_SET(errno, EINTR, EAGAIN)) |
00d9ef85 LP |
4536 | return 0; |
4537 | ||
4538 | return log_error_errno(errno, "Failed to read from user lookup fd: %m"); | |
4539 | } | |
4540 | ||
4541 | if ((size_t) l <= offsetof(struct buffer, unit_name)) { | |
4542 | log_warning("Received too short user lookup message, ignoring."); | |
4543 | return 0; | |
4544 | } | |
4545 | ||
4546 | if ((size_t) l > offsetof(struct buffer, unit_name) + UNIT_NAME_MAX) { | |
4547 | log_warning("Received too long user lookup message, ignoring."); | |
4548 | return 0; | |
4549 | } | |
4550 | ||
4551 | if (!uid_is_valid(buffer.uid) && !gid_is_valid(buffer.gid)) { | |
4552 | log_warning("Got user lookup message with invalid UID/GID pair, ignoring."); | |
4553 | return 0; | |
4554 | } | |
4555 | ||
4556 | n = (size_t) l - offsetof(struct buffer, unit_name); | |
4557 | if (memchr(buffer.unit_name, 0, n)) { | |
4558 | log_warning("Received lookup message with embedded NUL character, ignoring."); | |
4559 | return 0; | |
4560 | } | |
4561 | ||
4562 | buffer.unit_name[n] = 0; | |
4563 | u = manager_get_unit(m, buffer.unit_name); | |
4564 | if (!u) { | |
4565 | log_debug("Got user lookup message but unit doesn't exist, ignoring."); | |
4566 | return 0; | |
4567 | } | |
4568 | ||
4569 | log_unit_debug(u, "User lookup succeeded: uid=" UID_FMT " gid=" GID_FMT, buffer.uid, buffer.gid); | |
4570 | ||
4571 | unit_notify_user_lookup(u, buffer.uid, buffer.gid); | |
4572 | return 0; | |
4573 | } | |
4574 | ||
af6b0ecc | 4575 | char *manager_taint_string(Manager *m) { |
90d7464d | 4576 | _cleanup_free_ char *destination = NULL, *overflowuid = NULL, *overflowgid = NULL; |
af6b0ecc LP |
4577 | char *buf, *e; |
4578 | int r; | |
4579 | ||
198ce932 ZJS |
4580 | /* Returns a "taint string", e.g. "local-hwclock:var-run-bad". |
4581 | * Only things that are detected at runtime should be tagged | |
4582 | * here. For stuff that is set during compilation, emit a warning | |
4583 | * in the configuration phase. */ | |
4584 | ||
af6b0ecc LP |
4585 | assert(m); |
4586 | ||
4587 | buf = new(char, sizeof("split-usr:" | |
4588 | "cgroups-missing:" | |
4589 | "local-hwclock:" | |
4590 | "var-run-bad:" | |
90d7464d LP |
4591 | "overflowuid-not-65534:" |
4592 | "overflowgid-not-65534:")); | |
af6b0ecc LP |
4593 | if (!buf) |
4594 | return NULL; | |
4595 | ||
4596 | e = buf; | |
0fd402b0 | 4597 | buf[0] = 0; |
af6b0ecc LP |
4598 | |
4599 | if (m->taint_usr) | |
4600 | e = stpcpy(e, "split-usr:"); | |
4601 | ||
4602 | if (access("/proc/cgroups", F_OK) < 0) | |
4603 | e = stpcpy(e, "cgroups-missing:"); | |
4604 | ||
4605 | if (clock_is_localtime(NULL) > 0) | |
4606 | e = stpcpy(e, "local-hwclock:"); | |
4607 | ||
4608 | r = readlink_malloc("/var/run", &destination); | |
4609 | if (r < 0 || !PATH_IN_SET(destination, "../run", "/run")) | |
4610 | e = stpcpy(e, "var-run-bad:"); | |
4611 | ||
90d7464d LP |
4612 | r = read_one_line_file("/proc/sys/kernel/overflowuid", &overflowuid); |
4613 | if (r >= 0 && !streq(overflowuid, "65534")) | |
4614 | e = stpcpy(e, "overflowuid-not-65534:"); | |
4615 | ||
4616 | r = read_one_line_file("/proc/sys/kernel/overflowgid", &overflowgid); | |
4617 | if (r >= 0 && !streq(overflowgid, "65534")) | |
4618 | e = stpcpy(e, "overflowgid-not-65534:"); | |
4619 | ||
af6b0ecc LP |
4620 | /* remove the last ':' */ |
4621 | if (e != buf) | |
4622 | e[-1] = 0; | |
4623 | ||
4624 | return buf; | |
4625 | } | |
4626 | ||
adefcf28 LP |
4627 | void manager_ref_console(Manager *m) { |
4628 | assert(m); | |
4629 | ||
4630 | m->n_on_console++; | |
4631 | } | |
4632 | ||
4633 | void manager_unref_console(Manager *m) { | |
4634 | ||
4635 | assert(m->n_on_console > 0); | |
4636 | m->n_on_console--; | |
4637 | ||
4638 | if (m->n_on_console == 0) | |
4639 | m->no_console_output = false; /* unset no_console_output flag, since the console is definitely free now */ | |
4640 | } | |
4641 | ||
a6ecbf83 FB |
4642 | void manager_override_log_level(Manager *m, int level) { |
4643 | _cleanup_free_ char *s = NULL; | |
4644 | assert(m); | |
4645 | ||
4646 | if (!m->log_level_overridden) { | |
4647 | m->original_log_level = log_get_max_level(); | |
4648 | m->log_level_overridden = true; | |
4649 | } | |
4650 | ||
4651 | (void) log_level_to_string_alloc(level, &s); | |
4652 | log_info("Setting log level to %s.", strna(s)); | |
4653 | ||
4654 | log_set_max_level(level); | |
4655 | } | |
4656 | ||
4657 | void manager_restore_original_log_level(Manager *m) { | |
4658 | _cleanup_free_ char *s = NULL; | |
4659 | assert(m); | |
4660 | ||
4661 | if (!m->log_level_overridden) | |
4662 | return; | |
4663 | ||
4664 | (void) log_level_to_string_alloc(m->original_log_level, &s); | |
4665 | log_info("Restoring log level to original (%s).", strna(s)); | |
4666 | ||
4667 | log_set_max_level(m->original_log_level); | |
4668 | m->log_level_overridden = false; | |
4669 | } | |
4670 | ||
bda7d78b FB |
4671 | void manager_override_log_target(Manager *m, LogTarget target) { |
4672 | assert(m); | |
4673 | ||
4674 | if (!m->log_target_overridden) { | |
4675 | m->original_log_target = log_get_target(); | |
4676 | m->log_target_overridden = true; | |
4677 | } | |
4678 | ||
4679 | log_info("Setting log target to %s.", log_target_to_string(target)); | |
4680 | log_set_target(target); | |
4681 | } | |
4682 | ||
4683 | void manager_restore_original_log_target(Manager *m) { | |
4684 | assert(m); | |
4685 | ||
4686 | if (!m->log_target_overridden) | |
4687 | return; | |
4688 | ||
4689 | log_info("Restoring log target to original %s.", log_target_to_string(m->original_log_target)); | |
4690 | ||
4691 | log_set_target(m->original_log_target); | |
4692 | m->log_target_overridden = false; | |
4693 | } | |
4694 | ||
d4ee7bd8 YW |
4695 | ManagerTimestamp manager_timestamp_initrd_mangle(ManagerTimestamp s) { |
4696 | if (in_initrd() && | |
4697 | s >= MANAGER_TIMESTAMP_SECURITY_START && | |
4698 | s <= MANAGER_TIMESTAMP_UNITS_LOAD_FINISH) | |
4699 | return s - MANAGER_TIMESTAMP_SECURITY_START + MANAGER_TIMESTAMP_INITRD_SECURITY_START; | |
4700 | return s; | |
4701 | } | |
4702 | ||
f755e3b7 | 4703 | static const char *const manager_state_table[_MANAGER_STATE_MAX] = { |
d81afec1 | 4704 | [MANAGER_INITIALIZING] = "initializing", |
f755e3b7 LP |
4705 | [MANAGER_STARTING] = "starting", |
4706 | [MANAGER_RUNNING] = "running", | |
4707 | [MANAGER_DEGRADED] = "degraded", | |
4708 | [MANAGER_MAINTENANCE] = "maintenance", | |
4709 | [MANAGER_STOPPING] = "stopping", | |
4710 | }; | |
4711 | ||
4712 | DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState); | |
9f9f0342 LP |
4713 | |
4714 | static const char *const manager_timestamp_table[_MANAGER_TIMESTAMP_MAX] = { | |
4715 | [MANAGER_TIMESTAMP_FIRMWARE] = "firmware", | |
4716 | [MANAGER_TIMESTAMP_LOADER] = "loader", | |
4717 | [MANAGER_TIMESTAMP_KERNEL] = "kernel", | |
4718 | [MANAGER_TIMESTAMP_INITRD] = "initrd", | |
4719 | [MANAGER_TIMESTAMP_USERSPACE] = "userspace", | |
4720 | [MANAGER_TIMESTAMP_FINISH] = "finish", | |
4721 | [MANAGER_TIMESTAMP_SECURITY_START] = "security-start", | |
4722 | [MANAGER_TIMESTAMP_SECURITY_FINISH] = "security-finish", | |
4723 | [MANAGER_TIMESTAMP_GENERATORS_START] = "generators-start", | |
4724 | [MANAGER_TIMESTAMP_GENERATORS_FINISH] = "generators-finish", | |
4725 | [MANAGER_TIMESTAMP_UNITS_LOAD_START] = "units-load-start", | |
4726 | [MANAGER_TIMESTAMP_UNITS_LOAD_FINISH] = "units-load-finish", | |
d4ee7bd8 YW |
4727 | [MANAGER_TIMESTAMP_INITRD_SECURITY_START] = "initrd-security-start", |
4728 | [MANAGER_TIMESTAMP_INITRD_SECURITY_FINISH] = "initrd-security-finish", | |
4729 | [MANAGER_TIMESTAMP_INITRD_GENERATORS_START] = "initrd-generators-start", | |
4730 | [MANAGER_TIMESTAMP_INITRD_GENERATORS_FINISH] = "initrd-generators-finish", | |
4731 | [MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_START] = "initrd-units-load-start", | |
4732 | [MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_FINISH] = "initrd-units-load-finish", | |
9f9f0342 LP |
4733 | }; |
4734 | ||
4735 | DEFINE_STRING_TABLE_LOOKUP(manager_timestamp, ManagerTimestamp); | |
afcfaa69 LP |
4736 | |
4737 | static const char* const oom_policy_table[_OOM_POLICY_MAX] = { | |
4738 | [OOM_CONTINUE] = "continue", | |
4739 | [OOM_STOP] = "stop", | |
4740 | [OOM_KILL] = "kill", | |
4741 | }; | |
4742 | ||
4743 | DEFINE_STRING_TABLE_LOOKUP(oom_policy, OOMPolicy); |