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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
a7334b09 | 2 | |
60918275 | 3 | #include <errno.h> |
3dfc9763 | 4 | #include <fcntl.h> |
f170852a | 5 | #include <getopt.h> |
d4a402e4 | 6 | #include <linux/oom.h> |
664f88a7 | 7 | #include <sys/mount.h> |
3dfc9763 | 8 | #include <sys/prctl.h> |
40efaaed | 9 | #include <sys/utsname.h> |
3dfc9763 | 10 | #include <unistd.h> |
349cc4a5 | 11 | #if HAVE_VALGRIND_VALGRIND_H |
50b35193 | 12 | # include <valgrind/valgrind.h> |
3dfc9763 | 13 | #endif |
54b434b1 | 14 | |
718db961 | 15 | #include "sd-bus.h" |
cf0fbc49 | 16 | #include "sd-daemon.h" |
b2e7486c | 17 | #include "sd-messages.h" |
3dfc9763 | 18 | |
b5efdb8a | 19 | #include "alloc-util.h" |
2ffadd3c | 20 | #include "apparmor-setup.h" |
d9d93745 | 21 | #include "architecture.h" |
ee617a4e | 22 | #include "argv-util.h" |
b1994387 ILG |
23 | #if HAVE_LIBBPF |
24 | #include "bpf-lsm.h" | |
25 | #endif | |
3dfc9763 LP |
26 | #include "build.h" |
27 | #include "bus-error.h" | |
28 | #include "bus-util.h" | |
430f0182 | 29 | #include "capability-util.h" |
a88c5b8a | 30 | #include "cgroup-util.h" |
aaa27e2e | 31 | #include "chase.h" |
24efb112 | 32 | #include "clock-util.h" |
3dfc9763 | 33 | #include "conf-parser.h" |
024469dd | 34 | #include "confidential-virt.h" |
3f37a825 | 35 | #include "copy.h" |
618234a5 | 36 | #include "cpu-set-util.h" |
898c9a6f | 37 | #include "crash-handler.h" |
3dfc9763 | 38 | #include "dbus-manager.h" |
c18ecf03 | 39 | #include "dbus.h" |
28db6fbf | 40 | #include "constants.h" |
32429805 | 41 | #include "dev-setup.h" |
c18ecf03 | 42 | #include "efi-random.h" |
209b2592 | 43 | #include "efivars.h" |
eee8b7ab | 44 | #include "emergency-action.h" |
3dfc9763 | 45 | #include "env-util.h" |
57b7a260 | 46 | #include "exit-status.h" |
3ffd4af2 | 47 | #include "fd-util.h" |
3dfc9763 | 48 | #include "fdset.h" |
718db961 | 49 | #include "fileio.h" |
f97b34a6 | 50 | #include "format-util.h" |
f4f15635 | 51 | #include "fs-util.h" |
6339d3e6 | 52 | #include "getopt-defs.h" |
d247f232 | 53 | #include "hexdecoct.h" |
3dfc9763 LP |
54 | #include "hostname-setup.h" |
55 | #include "ima-setup.h" | |
4b9a4b01 | 56 | #include "import-creds.h" |
baa6a42d | 57 | #include "initrd-util.h" |
3dfc9763 LP |
58 | #include "killall.h" |
59 | #include "kmod-setup.h" | |
eefc66aa | 60 | #include "limits-util.h" |
d7b8eec7 | 61 | #include "load-fragment.h" |
3dfc9763 | 62 | #include "log.h" |
b6e66135 | 63 | #include "loopback-setup.h" |
b6e66135 | 64 | #include "machine-id-setup.h" |
898c9a6f | 65 | #include "main.h" |
3dfc9763 | 66 | #include "manager.h" |
2a341bb9 | 67 | #include "manager-dump.h" |
a01ba4b2 | 68 | #include "manager-serialize.h" |
35cd0ba5 | 69 | #include "mkdir-label.h" |
3dfc9763 | 70 | #include "mount-setup.h" |
d58ad743 | 71 | #include "os-util.h" |
3dfc9763 | 72 | #include "pager.h" |
614b022c | 73 | #include "parse-argument.h" |
6bedfcbb | 74 | #include "parse-util.h" |
7d5ceb64 | 75 | #include "path-util.h" |
294bf0c3 | 76 | #include "pretty-print.h" |
4e731273 | 77 | #include "proc-cmdline.h" |
3dfc9763 | 78 | #include "process-util.h" |
6bb00842 | 79 | #include "psi-util.h" |
d247f232 | 80 | #include "random-util.h" |
78f22b97 | 81 | #include "rlimit-util.h" |
83f12b27 | 82 | #include "seccomp-util.h" |
b6e66135 | 83 | #include "selinux-setup.h" |
3dfc9763 LP |
84 | #include "selinux-util.h" |
85 | #include "signal-util.h" | |
ffbd2c4d | 86 | #include "smack-setup.h" |
3dfc9763 | 87 | #include "special.h" |
8fcde012 | 88 | #include "stat-util.h" |
15a5e950 | 89 | #include "stdio-util.h" |
3dfc9763 LP |
90 | #include "strv.h" |
91 | #include "switch-root.h" | |
a8b627aa | 92 | #include "sysctl-util.h" |
3dfc9763 | 93 | #include "terminal-util.h" |
b10abe4b | 94 | #include "time-util.h" |
8612da97 | 95 | #include "umask-util.h" |
b1d4f8e1 | 96 | #include "user-util.h" |
bdb577f5 | 97 | #include "version.h" |
3dfc9763 LP |
98 | #include "virt.h" |
99 | #include "watchdog.h" | |
b6e66135 | 100 | |
7e11a95e EV |
101 | #if HAS_FEATURE_ADDRESS_SANITIZER |
102 | #include <sanitizer/lsan_interface.h> | |
103 | #endif | |
104 | ||
f170852a LP |
105 | static enum { |
106 | ACTION_RUN, | |
e965d56d | 107 | ACTION_HELP, |
9ba0bc4e | 108 | ACTION_VERSION, |
e537352b | 109 | ACTION_TEST, |
bbc1acab YW |
110 | ACTION_DUMP_CONFIGURATION_ITEMS, |
111 | ACTION_DUMP_BUS_PROPERTIES, | |
5c08257b | 112 | ACTION_BUS_INTROSPECT, |
fa0f4d8a | 113 | } arg_action = ACTION_RUN; |
fb39af4c | 114 | |
5c08257b ZJS |
115 | static const char *arg_bus_introspect = NULL; |
116 | ||
45250e66 LP |
117 | /* Those variables are initialized to 0 automatically, so we avoid uninitialized memory access. Real |
118 | * defaults are assigned in reset_arguments() below. */ | |
fb39af4c | 119 | static char *arg_default_unit; |
4870133b | 120 | static RuntimeScope arg_runtime_scope; |
898c9a6f LP |
121 | bool arg_dump_core; |
122 | int arg_crash_chvt; | |
123 | bool arg_crash_shell; | |
124 | bool arg_crash_reboot; | |
fb39af4c ZJS |
125 | static char *arg_confirm_spawn; |
126 | static ShowStatus arg_show_status; | |
36cf4507 | 127 | static StatusUnitFormat arg_status_unit_format; |
fb39af4c ZJS |
128 | static bool arg_switched_root; |
129 | static PagerFlags arg_pager_flags; | |
130 | static bool arg_service_watchdogs; | |
c9e120e0 | 131 | static UnitDefaults arg_defaults; |
fb39af4c | 132 | static usec_t arg_runtime_watchdog; |
65224c1d | 133 | static usec_t arg_reboot_watchdog; |
acafd7d8 | 134 | static usec_t arg_kexec_watchdog; |
5717062e | 135 | static usec_t arg_pretimeout_watchdog; |
fb39af4c | 136 | static char *arg_early_core_pattern; |
aff3a9e1 | 137 | static char *arg_watchdog_pretimeout_governor; |
fb39af4c ZJS |
138 | static char *arg_watchdog_device; |
139 | static char **arg_default_environment; | |
d55ed7de | 140 | static char **arg_manager_environment; |
fb39af4c ZJS |
141 | static uint64_t arg_capability_bounding_set; |
142 | static bool arg_no_new_privs; | |
143 | static nsec_t arg_timer_slack_nsec; | |
fb39af4c ZJS |
144 | static Set* arg_syscall_archs; |
145 | static FILE* arg_serialization; | |
fb39af4c ZJS |
146 | static sd_id128_t arg_machine_id; |
147 | static EmergencyAction arg_cad_burst_action; | |
fb39af4c | 148 | static CPUSet arg_cpu_affinity; |
b070c7c0 | 149 | static NUMAPolicy arg_numa_policy; |
3753325b | 150 | static usec_t arg_clock_usec; |
d247f232 LP |
151 | static void *arg_random_seed; |
152 | static size_t arg_random_seed_size; | |
856bfaeb LB |
153 | static usec_t arg_reload_limit_interval_sec; |
154 | static unsigned arg_reload_limit_burst; | |
61fbbac1 | 155 | |
0e06a031 LP |
156 | /* A copy of the original environment block */ |
157 | static char **saved_env = NULL; | |
158 | ||
a9fd4cd1 FB |
159 | static int parse_configuration(const struct rlimit *saved_rlimit_nofile, |
160 | const struct rlimit *saved_rlimit_memlock); | |
4fc935ca | 161 | |
f70e6fb4 ZJS |
162 | static int manager_find_user_config_paths(char ***ret_files, char ***ret_dirs) { |
163 | _cleanup_free_ char *base = NULL; | |
164 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; | |
165 | int r; | |
166 | ||
167 | r = xdg_user_config_dir(&base, "/systemd"); | |
168 | if (r < 0) | |
169 | return r; | |
170 | ||
171 | r = strv_extendf(&files, "%s/user.conf", base); | |
172 | if (r < 0) | |
173 | return r; | |
174 | ||
175 | r = strv_extend(&files, PKGSYSCONFDIR "/user.conf"); | |
176 | if (r < 0) | |
177 | return r; | |
178 | ||
179 | r = strv_consume(&dirs, TAKE_PTR(base)); | |
180 | if (r < 0) | |
181 | return r; | |
182 | ||
183 | r = strv_extend_strv(&dirs, CONF_PATHS_STRV("systemd"), false); | |
184 | if (r < 0) | |
185 | return r; | |
186 | ||
187 | *ret_files = TAKE_PTR(files); | |
188 | *ret_dirs = TAKE_PTR(dirs); | |
189 | return 0; | |
190 | } | |
191 | ||
56d96fc0 | 192 | static int console_setup(void) { |
254d1313 | 193 | _cleanup_close_ int tty_fd = -EBADF; |
29f5a5ae | 194 | unsigned rows, cols; |
56d96fc0 | 195 | int r; |
80876c20 | 196 | |
512947d4 | 197 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
23bbb0de MS |
198 | if (tty_fd < 0) |
199 | return log_error_errno(tty_fd, "Failed to open /dev/console: %m"); | |
80876c20 | 200 | |
56d96fc0 LP |
201 | /* We don't want to force text mode. plymouth may be showing |
202 | * pictures already from initrd. */ | |
512947d4 | 203 | r = reset_terminal_fd(tty_fd, false); |
23bbb0de MS |
204 | if (r < 0) |
205 | return log_error_errno(r, "Failed to reset /dev/console: %m"); | |
843d2643 | 206 | |
29f5a5ae DDM |
207 | r = proc_cmdline_tty_size("/dev/console", &rows, &cols); |
208 | if (r < 0) | |
209 | log_warning_errno(r, "Failed to get terminal size, ignoring: %m"); | |
210 | else { | |
211 | r = terminal_set_size_fd(tty_fd, NULL, rows, cols); | |
212 | if (r < 0) | |
213 | log_warning_errno(r, "Failed to set terminal size, ignoring: %m"); | |
214 | } | |
215 | ||
56d96fc0 | 216 | return 0; |
80876c20 LP |
217 | } |
218 | ||
96287a49 | 219 | static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { |
059cb385 | 220 | int r; |
f170852a | 221 | |
059cb385 | 222 | assert(key); |
5192bd19 | 223 | |
1d84ad94 | 224 | if (STR_IN_SET(key, "systemd.unit", "rd.systemd.unit")) { |
bf4df7c3 | 225 | |
1d84ad94 LP |
226 | if (proc_cmdline_value_missing(key, value)) |
227 | return 0; | |
bf4df7c3 | 228 | |
1d84ad94 LP |
229 | if (!unit_name_is_valid(value, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
230 | log_warning("Unit name specified on %s= is not valid, ignoring: %s", key, value); | |
cd57038a ZJS |
231 | else if (in_initrd() == !!startswith(key, "rd.")) |
232 | return free_and_strdup_warn(&arg_default_unit, value); | |
f170852a | 233 | |
1d84ad94 | 234 | } else if (proc_cmdline_key_streq(key, "systemd.dump_core")) { |
4fc935ca | 235 | |
1d84ad94 | 236 | r = value ? parse_boolean(value) : true; |
fb472900 | 237 | if (r < 0) |
5e1ee764 | 238 | log_warning_errno(r, "Failed to parse dump core switch %s, ignoring: %m", value); |
4fc935ca | 239 | else |
fa0f4d8a | 240 | arg_dump_core = r; |
4fc935ca | 241 | |
c6885f5f FB |
242 | } else if (proc_cmdline_key_streq(key, "systemd.early_core_pattern")) { |
243 | ||
244 | if (proc_cmdline_value_missing(key, value)) | |
245 | return 0; | |
246 | ||
247 | if (path_is_absolute(value)) | |
614b022c | 248 | (void) parse_path_argument(value, false, &arg_early_core_pattern); |
c6885f5f FB |
249 | else |
250 | log_warning("Specified core pattern '%s' is not an absolute path, ignoring.", value); | |
251 | ||
1d84ad94 | 252 | } else if (proc_cmdline_key_streq(key, "systemd.crash_chvt")) { |
b9e74c39 | 253 | |
1d84ad94 LP |
254 | if (!value) |
255 | arg_crash_chvt = 0; /* turn on */ | |
5e1ee764 | 256 | else { |
a07a7324 | 257 | r = parse_crash_chvt(value, &arg_crash_chvt); |
5e1ee764 YW |
258 | if (r < 0) |
259 | log_warning_errno(r, "Failed to parse crash chvt switch %s, ignoring: %m", value); | |
260 | } | |
b9e74c39 | 261 | |
1d84ad94 | 262 | } else if (proc_cmdline_key_streq(key, "systemd.crash_shell")) { |
4fc935ca | 263 | |
1d84ad94 | 264 | r = value ? parse_boolean(value) : true; |
fb472900 | 265 | if (r < 0) |
5e1ee764 | 266 | log_warning_errno(r, "Failed to parse crash shell switch %s, ignoring: %m", value); |
4fc935ca | 267 | else |
fa0f4d8a | 268 | arg_crash_shell = r; |
5e7ee61c | 269 | |
1d84ad94 | 270 | } else if (proc_cmdline_key_streq(key, "systemd.crash_reboot")) { |
5e7ee61c | 271 | |
1d84ad94 | 272 | r = value ? parse_boolean(value) : true; |
b9e74c39 | 273 | if (r < 0) |
5e1ee764 | 274 | log_warning_errno(r, "Failed to parse crash reboot switch %s, ignoring: %m", value); |
5e7ee61c | 275 | else |
b9e74c39 | 276 | arg_crash_reboot = r; |
5e7ee61c | 277 | |
1d84ad94 LP |
278 | } else if (proc_cmdline_key_streq(key, "systemd.confirm_spawn")) { |
279 | char *s; | |
7d5ceb64 | 280 | |
1d84ad94 | 281 | r = parse_confirm_spawn(value, &s); |
059cb385 | 282 | if (r < 0) |
5e1ee764 YW |
283 | log_warning_errno(r, "Failed to parse confirm_spawn switch %s, ignoring: %m", value); |
284 | else | |
285 | free_and_replace(arg_confirm_spawn, s); | |
601f6a1e | 286 | |
2a12e32e JK |
287 | } else if (proc_cmdline_key_streq(key, "systemd.service_watchdogs")) { |
288 | ||
289 | r = value ? parse_boolean(value) : true; | |
290 | if (r < 0) | |
5e1ee764 | 291 | log_warning_errno(r, "Failed to parse service watchdog switch %s, ignoring: %m", value); |
2a12e32e JK |
292 | else |
293 | arg_service_watchdogs = r; | |
294 | ||
1d84ad94 | 295 | } else if (proc_cmdline_key_streq(key, "systemd.show_status")) { |
9e58ff9c | 296 | |
1d84ad94 LP |
297 | if (value) { |
298 | r = parse_show_status(value, &arg_show_status); | |
299 | if (r < 0) | |
5e1ee764 | 300 | log_warning_errno(r, "Failed to parse show status switch %s, ignoring: %m", value); |
1d84ad94 LP |
301 | } else |
302 | arg_show_status = SHOW_STATUS_YES; | |
059cb385 | 303 | |
36cf4507 ZJS |
304 | } else if (proc_cmdline_key_streq(key, "systemd.status_unit_format")) { |
305 | ||
306 | if (proc_cmdline_value_missing(key, value)) | |
307 | return 0; | |
308 | ||
309 | r = status_unit_format_from_string(value); | |
310 | if (r < 0) | |
311 | log_warning_errno(r, "Failed to parse %s=%s, ignoring: %m", key, value); | |
312 | else | |
313 | arg_status_unit_format = r; | |
314 | ||
1d84ad94 LP |
315 | } else if (proc_cmdline_key_streq(key, "systemd.default_standard_output")) { |
316 | ||
317 | if (proc_cmdline_value_missing(key, value)) | |
318 | return 0; | |
0a494f1f | 319 | |
059cb385 | 320 | r = exec_output_from_string(value); |
fb472900 | 321 | if (r < 0) |
5e1ee764 | 322 | log_warning_errno(r, "Failed to parse default standard output switch %s, ignoring: %m", value); |
0a494f1f | 323 | else |
c9e120e0 | 324 | arg_defaults.std_output = r; |
0a494f1f | 325 | |
1d84ad94 LP |
326 | } else if (proc_cmdline_key_streq(key, "systemd.default_standard_error")) { |
327 | ||
328 | if (proc_cmdline_value_missing(key, value)) | |
329 | return 0; | |
059cb385 LP |
330 | |
331 | r = exec_output_from_string(value); | |
fb472900 | 332 | if (r < 0) |
5e1ee764 | 333 | log_warning_errno(r, "Failed to parse default standard error switch %s, ignoring: %m", value); |
0a494f1f | 334 | else |
c9e120e0 | 335 | arg_defaults.std_error = r; |
9e7c5357 | 336 | |
1d84ad94 LP |
337 | } else if (streq(key, "systemd.setenv")) { |
338 | ||
339 | if (proc_cmdline_value_missing(key, value)) | |
340 | return 0; | |
059cb385 | 341 | |
b70935ac ZJS |
342 | if (!env_assignment_is_valid(value)) |
343 | log_warning("Environment variable assignment '%s' is not valid. Ignoring.", value); | |
344 | else { | |
345 | r = strv_env_replace_strdup(&arg_default_environment, value); | |
346 | if (r < 0) | |
1d84ad94 | 347 | return log_oom(); |
b70935ac | 348 | } |
9e58ff9c | 349 | |
1d84ad94 LP |
350 | } else if (proc_cmdline_key_streq(key, "systemd.machine_id")) { |
351 | ||
352 | if (proc_cmdline_value_missing(key, value)) | |
353 | return 0; | |
354 | ||
aea3f594 | 355 | r = id128_from_string_nonzero(value, &arg_machine_id); |
1d84ad94 | 356 | if (r < 0) |
5e1ee764 | 357 | log_warning_errno(r, "MachineID '%s' is not valid, ignoring: %m", value); |
ee48dbd5 | 358 | |
1d84ad94 LP |
359 | } else if (proc_cmdline_key_streq(key, "systemd.default_timeout_start_sec")) { |
360 | ||
361 | if (proc_cmdline_value_missing(key, value)) | |
362 | return 0; | |
363 | ||
c9e120e0 | 364 | r = parse_sec(value, &arg_defaults.timeout_start_usec); |
1d84ad94 | 365 | if (r < 0) |
5e1ee764 | 366 | log_warning_errno(r, "Failed to parse default start timeout '%s', ignoring: %m", value); |
1d84ad94 | 367 | |
c9e120e0 LP |
368 | if (arg_defaults.timeout_start_usec <= 0) |
369 | arg_defaults.timeout_start_usec = USEC_INFINITY; | |
ee48dbd5 | 370 | |
6b818cd7 DDM |
371 | } else if (proc_cmdline_key_streq(key, "systemd.default_device_timeout_sec")) { |
372 | ||
373 | if (proc_cmdline_value_missing(key, value)) | |
374 | return 0; | |
375 | ||
c9e120e0 | 376 | r = parse_sec(value, &arg_defaults.device_timeout_usec); |
6b818cd7 DDM |
377 | if (r < 0) |
378 | log_warning_errno(r, "Failed to parse default device timeout '%s', ignoring: %m", value); | |
379 | ||
c9e120e0 LP |
380 | if (arg_defaults.device_timeout_usec <= 0) |
381 | arg_defaults.device_timeout_usec = USEC_INFINITY; | |
6b818cd7 | 382 | |
68d58f38 LP |
383 | } else if (proc_cmdline_key_streq(key, "systemd.cpu_affinity")) { |
384 | ||
385 | if (proc_cmdline_value_missing(key, value)) | |
386 | return 0; | |
387 | ||
388 | r = parse_cpu_set(value, &arg_cpu_affinity); | |
389 | if (r < 0) | |
162392b7 | 390 | log_warning_errno(r, "Failed to parse CPU affinity mask '%s', ignoring: %m", value); |
68d58f38 | 391 | |
8a2c1fbf EJ |
392 | } else if (proc_cmdline_key_streq(key, "systemd.watchdog_device")) { |
393 | ||
394 | if (proc_cmdline_value_missing(key, value)) | |
395 | return 0; | |
396 | ||
614b022c | 397 | (void) parse_path_argument(value, false, &arg_watchdog_device); |
8a2c1fbf | 398 | |
b3aa73e4 FB |
399 | } else if (proc_cmdline_key_streq(key, "systemd.watchdog_sec")) { |
400 | ||
401 | if (proc_cmdline_value_missing(key, value)) | |
402 | return 0; | |
403 | ||
8a85c5b6 FB |
404 | if (streq(value, "default")) |
405 | arg_runtime_watchdog = USEC_INFINITY; | |
c91c95e6 LP |
406 | else if (streq(value, "off")) |
407 | arg_runtime_watchdog = 0; | |
8a85c5b6 FB |
408 | else { |
409 | r = parse_sec(value, &arg_runtime_watchdog); | |
410 | if (r < 0) { | |
411 | log_warning_errno(r, "Failed to parse systemd.watchdog_sec= argument '%s', ignoring: %m", value); | |
412 | return 0; | |
413 | } | |
414 | } | |
415 | ||
416 | arg_kexec_watchdog = arg_reboot_watchdog = arg_runtime_watchdog; | |
b3aa73e4 | 417 | |
5717062e CK |
418 | } else if (proc_cmdline_key_streq(key, "systemd.watchdog_pre_sec")) { |
419 | ||
420 | if (proc_cmdline_value_missing(key, value)) | |
421 | return 0; | |
422 | ||
423 | if (streq(value, "default")) | |
424 | arg_pretimeout_watchdog = USEC_INFINITY; | |
425 | else if (streq(value, "off")) | |
426 | arg_pretimeout_watchdog = 0; | |
427 | else { | |
428 | r = parse_sec(value, &arg_pretimeout_watchdog); | |
429 | if (r < 0) { | |
430 | log_warning_errno(r, "Failed to parse systemd.watchdog_pre_sec= argument '%s', ignoring: %m", value); | |
431 | return 0; | |
432 | } | |
433 | } | |
434 | ||
aff3a9e1 LB |
435 | } else if (proc_cmdline_key_streq(key, "systemd.watchdog_pretimeout_governor")) { |
436 | ||
437 | if (proc_cmdline_value_missing(key, value) || isempty(value)) { | |
438 | arg_watchdog_pretimeout_governor = mfree(arg_watchdog_pretimeout_governor); | |
439 | return 0; | |
440 | } | |
441 | ||
442 | if (!string_is_safe(value)) { | |
443 | log_warning("Watchdog pretimeout governor '%s' is not valid, ignoring.", value); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | return free_and_strdup_warn(&arg_watchdog_pretimeout_governor, value); | |
448 | ||
3753325b LP |
449 | } else if (proc_cmdline_key_streq(key, "systemd.clock_usec")) { |
450 | ||
451 | if (proc_cmdline_value_missing(key, value)) | |
452 | return 0; | |
453 | ||
454 | r = safe_atou64(value, &arg_clock_usec); | |
455 | if (r < 0) | |
456 | log_warning_errno(r, "Failed to parse systemd.clock_usec= argument, ignoring: %s", value); | |
457 | ||
d247f232 LP |
458 | } else if (proc_cmdline_key_streq(key, "systemd.random_seed")) { |
459 | void *p; | |
460 | size_t sz; | |
461 | ||
462 | if (proc_cmdline_value_missing(key, value)) | |
463 | return 0; | |
464 | ||
f5fbe71d | 465 | r = unbase64mem(value, SIZE_MAX, &p, &sz); |
d247f232 LP |
466 | if (r < 0) |
467 | log_warning_errno(r, "Failed to parse systemd.random_seed= argument, ignoring: %s", value); | |
468 | ||
469 | free(arg_random_seed); | |
470 | arg_random_seed = sz > 0 ? p : mfree(p); | |
471 | arg_random_seed_size = sz; | |
472 | ||
856bfaeb LB |
473 | } else if (proc_cmdline_key_streq(key, "systemd.reload_limit_interval_sec")) { |
474 | ||
475 | if (proc_cmdline_value_missing(key, value)) | |
476 | return 0; | |
477 | ||
478 | r = parse_sec(value, &arg_reload_limit_interval_sec); | |
479 | if (r < 0) { | |
480 | log_warning_errno(r, "Failed to parse systemd.reload_limit_interval_sec= argument '%s', ignoring: %m", value); | |
481 | return 0; | |
482 | } | |
483 | ||
484 | } else if (proc_cmdline_key_streq(key, "systemd.reload_limit_burst")) { | |
485 | ||
486 | if (proc_cmdline_value_missing(key, value)) | |
487 | return 0; | |
488 | ||
489 | r = safe_atou(value, &arg_reload_limit_burst); | |
490 | if (r < 0) { | |
491 | log_warning_errno(r, "Failed to parse systemd.reload_limit_burst= argument '%s', ignoring: %m", value); | |
492 | return 0; | |
493 | } | |
494 | ||
059cb385 | 495 | } else if (streq(key, "quiet") && !value) { |
d7b15e0a | 496 | |
7a293242 | 497 | if (arg_show_status == _SHOW_STATUS_INVALID) |
0d066dd1 | 498 | arg_show_status = SHOW_STATUS_ERROR; |
059cb385 LP |
499 | |
500 | } else if (streq(key, "debug") && !value) { | |
d7b15e0a | 501 | |
1de1c9c3 LP |
502 | /* Note that log_parse_environment() handles 'debug' |
503 | * too, and sets the log level to LOG_DEBUG. */ | |
d7b15e0a | 504 | |
75f86906 | 505 | if (detect_container() > 0) |
b2103dcc | 506 | log_set_target(LOG_TARGET_CONSOLE); |
059cb385 | 507 | |
dcd61450 | 508 | } else if (!value) { |
e2c9a131 | 509 | const char *target; |
f170852a | 510 | |
ceae6295 | 511 | /* Compatible with SysV, but supported independently even if SysV compatibility is disabled. */ |
e2c9a131 EV |
512 | target = runlevel_to_target(key); |
513 | if (target) | |
cd57038a | 514 | return free_and_strdup_warn(&arg_default_unit, target); |
f170852a LP |
515 | } |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
e8e581bf ZJS |
520 | #define DEFINE_SETTER(name, func, descr) \ |
521 | static int name(const char *unit, \ | |
522 | const char *filename, \ | |
523 | unsigned line, \ | |
524 | const char *section, \ | |
71a61510 | 525 | unsigned section_line, \ |
e8e581bf ZJS |
526 | const char *lvalue, \ |
527 | int ltype, \ | |
528 | const char *rvalue, \ | |
529 | void *data, \ | |
530 | void *userdata) { \ | |
531 | \ | |
532 | int r; \ | |
533 | \ | |
534 | assert(filename); \ | |
535 | assert(lvalue); \ | |
536 | assert(rvalue); \ | |
537 | \ | |
538 | r = func(rvalue); \ | |
539 | if (r < 0) \ | |
d1cefe0a LP |
540 | log_syntax(unit, LOG_ERR, filename, line, r, \ |
541 | "Invalid " descr "'%s': %m", \ | |
542 | rvalue); \ | |
e8e581bf ZJS |
543 | \ |
544 | return 0; \ | |
545 | } | |
487393e9 | 546 | |
a6ecbf83 FB |
547 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level"); |
548 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target"); | |
c5673ed0 | 549 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color"); |
a6ecbf83 | 550 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location"); |
c5673ed0 | 551 | DEFINE_SETTER(config_parse_time, log_show_time_from_string, "time"); |
487393e9 | 552 | |
a61d6874 ZJS |
553 | static int config_parse_default_timeout_abort( |
554 | const char *unit, | |
555 | const char *filename, | |
556 | unsigned line, | |
557 | const char *section, | |
558 | unsigned section_line, | |
559 | const char *lvalue, | |
560 | int ltype, | |
561 | const char *rvalue, | |
562 | void *data, | |
563 | void *userdata) { | |
564 | int r; | |
565 | ||
c9e120e0 LP |
566 | r = config_parse_timeout_abort( |
567 | unit, | |
568 | filename, | |
569 | line, | |
570 | section, | |
571 | section_line, | |
572 | lvalue, | |
573 | ltype, | |
574 | rvalue, | |
575 | &arg_defaults.timeout_abort_usec, | |
576 | userdata); | |
a61d6874 | 577 | if (r >= 0) |
c9e120e0 | 578 | arg_defaults.timeout_abort_set = r; |
a61d6874 ZJS |
579 | return 0; |
580 | } | |
487393e9 | 581 | |
d4a402e4 LP |
582 | static int config_parse_oom_score_adjust( |
583 | const char *unit, | |
584 | const char *filename, | |
585 | unsigned line, | |
586 | const char *section, | |
587 | unsigned section_line, | |
588 | const char *lvalue, | |
589 | int ltype, | |
590 | const char *rvalue, | |
591 | void *data, | |
592 | void *userdata) { | |
593 | ||
594 | int oa, r; | |
595 | ||
596 | if (isempty(rvalue)) { | |
c9e120e0 | 597 | arg_defaults.oom_score_adjust_set = false; |
d4a402e4 LP |
598 | return 0; |
599 | } | |
600 | ||
601 | r = parse_oom_score_adjust(rvalue, &oa); | |
602 | if (r < 0) { | |
603 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue); | |
604 | return 0; | |
605 | } | |
606 | ||
c9e120e0 LP |
607 | arg_defaults.oom_score_adjust = oa; |
608 | arg_defaults.oom_score_adjust_set = true; | |
d4a402e4 LP |
609 | |
610 | return 0; | |
611 | } | |
612 | ||
a61d6874 | 613 | static int parse_config_file(void) { |
f975e971 | 614 | const ConfigTableItem items[] = { |
3f87eaa5 YW |
615 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
616 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
617 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
618 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
619 | { "Manager", "LogTime", config_parse_time, 0, NULL }, | |
620 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
621 | { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, &arg_crash_chvt }, | |
622 | { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, &arg_crash_chvt }, | |
623 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
624 | { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot }, | |
625 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, | |
626 | { "Manager", "StatusUnitFormat", config_parse_status_unit_format, 0, &arg_status_unit_format }, | |
627 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, &arg_cpu_affinity }, | |
628 | { "Manager", "NUMAPolicy", config_parse_numa_policy, 0, &arg_numa_policy.type }, | |
629 | { "Manager", "NUMAMask", config_parse_numa_mask, 0, &arg_numa_policy }, | |
630 | { "Manager", "JoinControllers", config_parse_warn_compat, DISABLED_CONFIGURATION, NULL }, | |
631 | { "Manager", "RuntimeWatchdogSec", config_parse_watchdog_sec, 0, &arg_runtime_watchdog }, | |
632 | { "Manager", "RuntimeWatchdogPreSec", config_parse_watchdog_sec, 0, &arg_pretimeout_watchdog }, | |
633 | { "Manager", "RebootWatchdogSec", config_parse_watchdog_sec, 0, &arg_reboot_watchdog }, | |
634 | { "Manager", "ShutdownWatchdogSec", config_parse_watchdog_sec, 0, &arg_reboot_watchdog }, /* obsolete alias */ | |
635 | { "Manager", "KExecWatchdogSec", config_parse_watchdog_sec, 0, &arg_kexec_watchdog }, | |
636 | { "Manager", "WatchdogDevice", config_parse_path, 0, &arg_watchdog_device }, | |
637 | { "Manager", "RuntimeWatchdogPreGovernor", config_parse_string, CONFIG_PARSE_STRING_SAFE, &arg_watchdog_pretimeout_governor }, | |
638 | { "Manager", "CapabilityBoundingSet", config_parse_capability_set, 0, &arg_capability_bounding_set }, | |
639 | { "Manager", "NoNewPrivileges", config_parse_bool, 0, &arg_no_new_privs }, | |
349cc4a5 | 640 | #if HAVE_SECCOMP |
3f87eaa5 | 641 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
6aa2c555 LP |
642 | #else |
643 | { "Manager", "SystemCallArchitectures", config_parse_warn_compat, DISABLED_CONFIGURATION, NULL }, | |
644 | ||
89fffa27 | 645 | #endif |
3f87eaa5 | 646 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
c9e120e0 LP |
647 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_defaults.timer_accuracy_usec }, |
648 | { "Manager", "DefaultStandardOutput", config_parse_output_restricted, 0, &arg_defaults.std_output }, | |
649 | { "Manager", "DefaultStandardError", config_parse_output_restricted, 0, &arg_defaults.std_error }, | |
650 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_defaults.timeout_start_usec }, | |
651 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_defaults.timeout_stop_usec }, | |
3f87eaa5 | 652 | { "Manager", "DefaultTimeoutAbortSec", config_parse_default_timeout_abort, 0, NULL }, |
c9e120e0 LP |
653 | { "Manager", "DefaultDeviceTimeoutSec", config_parse_sec, 0, &arg_defaults.device_timeout_usec }, |
654 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_defaults.restart_usec }, | |
655 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_defaults.start_limit_interval}, /* obsolete alias */ | |
656 | { "Manager", "DefaultStartLimitIntervalSec", config_parse_sec, 0, &arg_defaults.start_limit_interval}, | |
657 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_defaults.start_limit_burst }, | |
4870133b LP |
658 | { "Manager", "DefaultEnvironment", config_parse_environ, arg_runtime_scope, &arg_default_environment }, |
659 | { "Manager", "ManagerEnvironment", config_parse_environ, arg_runtime_scope, &arg_manager_environment }, | |
c9e120e0 LP |
660 | { "Manager", "DefaultLimitCPU", config_parse_rlimit, RLIMIT_CPU, arg_defaults.rlimit }, |
661 | { "Manager", "DefaultLimitFSIZE", config_parse_rlimit, RLIMIT_FSIZE, arg_defaults.rlimit }, | |
662 | { "Manager", "DefaultLimitDATA", config_parse_rlimit, RLIMIT_DATA, arg_defaults.rlimit }, | |
663 | { "Manager", "DefaultLimitSTACK", config_parse_rlimit, RLIMIT_STACK, arg_defaults.rlimit }, | |
664 | { "Manager", "DefaultLimitCORE", config_parse_rlimit, RLIMIT_CORE, arg_defaults.rlimit }, | |
665 | { "Manager", "DefaultLimitRSS", config_parse_rlimit, RLIMIT_RSS, arg_defaults.rlimit }, | |
666 | { "Manager", "DefaultLimitNOFILE", config_parse_rlimit, RLIMIT_NOFILE, arg_defaults.rlimit }, | |
667 | { "Manager", "DefaultLimitAS", config_parse_rlimit, RLIMIT_AS, arg_defaults.rlimit }, | |
668 | { "Manager", "DefaultLimitNPROC", config_parse_rlimit, RLIMIT_NPROC, arg_defaults.rlimit }, | |
669 | { "Manager", "DefaultLimitMEMLOCK", config_parse_rlimit, RLIMIT_MEMLOCK, arg_defaults.rlimit }, | |
670 | { "Manager", "DefaultLimitLOCKS", config_parse_rlimit, RLIMIT_LOCKS, arg_defaults.rlimit }, | |
671 | { "Manager", "DefaultLimitSIGPENDING", config_parse_rlimit, RLIMIT_SIGPENDING, arg_defaults.rlimit }, | |
672 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_rlimit, RLIMIT_MSGQUEUE, arg_defaults.rlimit }, | |
673 | { "Manager", "DefaultLimitNICE", config_parse_rlimit, RLIMIT_NICE, arg_defaults.rlimit }, | |
674 | { "Manager", "DefaultLimitRTPRIO", config_parse_rlimit, RLIMIT_RTPRIO, arg_defaults.rlimit }, | |
675 | { "Manager", "DefaultLimitRTTIME", config_parse_rlimit, RLIMIT_RTTIME, arg_defaults.rlimit }, | |
676 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_defaults.cpu_accounting }, | |
677 | { "Manager", "DefaultIOAccounting", config_parse_bool, 0, &arg_defaults.io_accounting }, | |
678 | { "Manager", "DefaultIPAccounting", config_parse_bool, 0, &arg_defaults.ip_accounting }, | |
679 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_defaults.blockio_accounting }, | |
680 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_defaults.memory_accounting }, | |
681 | { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_defaults.tasks_accounting }, | |
682 | { "Manager", "DefaultTasksMax", config_parse_tasks_max, 0, &arg_defaults.tasks_max }, | |
683 | { "Manager", "DefaultMemoryPressureThresholdSec", config_parse_sec, 0, &arg_defaults.memory_pressure_threshold_usec }, | |
684 | { "Manager", "DefaultMemoryPressureWatch", config_parse_memory_pressure_watch, 0, &arg_defaults.memory_pressure_watch }, | |
4870133b | 685 | { "Manager", "CtrlAltDelBurstAction", config_parse_emergency_action, arg_runtime_scope, &arg_cad_burst_action }, |
c9e120e0 | 686 | { "Manager", "DefaultOOMPolicy", config_parse_oom_policy, 0, &arg_defaults.oom_policy }, |
3f87eaa5 | 687 | { "Manager", "DefaultOOMScoreAdjust", config_parse_oom_score_adjust, 0, NULL }, |
856bfaeb LB |
688 | { "Manager", "ReloadLimitIntervalSec", config_parse_sec, 0, &arg_reload_limit_interval_sec }, |
689 | { "Manager", "ReloadLimitBurst", config_parse_unsigned, 0, &arg_reload_limit_burst }, | |
aa5ae971 | 690 | #if ENABLE_SMACK |
c9e120e0 | 691 | { "Manager", "DefaultSmackProcessLabel", config_parse_string, 0, &arg_defaults.smack_process_label }, |
aa5ae971 ŁS |
692 | #else |
693 | { "Manager", "DefaultSmackProcessLabel", config_parse_warn_compat, DISABLED_CONFIGURATION, NULL }, | |
694 | #endif | |
d3b1c508 | 695 | {} |
487393e9 LP |
696 | }; |
697 | ||
4870133b | 698 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM) |
07e0ffc8 FB |
699 | (void) config_parse_config_file("system.conf", |
700 | "Manager\0", | |
701 | config_item_table_lookup, items, | |
702 | CONFIG_PARSE_WARN, | |
703 | NULL); | |
e94a009c | 704 | else { |
07e0ffc8 FB |
705 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; |
706 | int r; | |
707 | ||
4870133b LP |
708 | assert(arg_runtime_scope == RUNTIME_SCOPE_USER); |
709 | ||
e94a009c | 710 | r = manager_find_user_config_paths(&files, &dirs); |
f70e6fb4 ZJS |
711 | if (r < 0) |
712 | return log_error_errno(r, "Failed to determine config file paths: %m"); | |
e94a009c | 713 | |
07e0ffc8 FB |
714 | (void) config_parse_many( |
715 | (const char* const*) files, | |
716 | (const char* const*) dirs, | |
717 | "user.conf.d", | |
947f59ba | 718 | /* root = */ NULL, |
07e0ffc8 FB |
719 | "Manager\0", |
720 | config_item_table_lookup, items, | |
721 | CONFIG_PARSE_WARN, | |
722 | NULL, NULL, NULL); | |
f70e6fb4 | 723 | } |
75eb6154 | 724 | |
f70e6fb4 ZJS |
725 | /* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we use |
726 | * USEC_INFINITY like everywhere else. */ | |
c9e120e0 LP |
727 | if (arg_defaults.timeout_start_usec <= 0) |
728 | arg_defaults.timeout_start_usec = USEC_INFINITY; | |
729 | if (arg_defaults.timeout_stop_usec <= 0) | |
730 | arg_defaults.timeout_stop_usec = USEC_INFINITY; | |
487393e9 | 731 | |
487393e9 LP |
732 | return 0; |
733 | } | |
734 | ||
85cb4151 | 735 | static void set_manager_defaults(Manager *m) { |
bfb27b06 | 736 | int r; |
06af2a04 TB |
737 | |
738 | assert(m); | |
739 | ||
bfb27b06 LP |
740 | /* Propagates the various default unit property settings into the manager object, i.e. properties |
741 | * that do not affect the manager itself, but are just what newly allocated units will have set if | |
742 | * they haven't set anything else. (Also see set_manager_settings() for the settings that affect the | |
743 | * manager's own behaviour) */ | |
744 | ||
745 | r = manager_set_unit_defaults(m, &arg_defaults); | |
746 | if (r < 0) | |
747 | log_warning_errno(r, "Failed to set manager defaults, ignoring: %m"); | |
748 | ||
749 | r = manager_default_environment(m); | |
750 | if (r < 0) | |
751 | log_warning_errno(r, "Failed to set manager default environment, ignoring: %m"); | |
752 | ||
753 | r = manager_transient_environment_add(m, arg_default_environment); | |
754 | if (r < 0) | |
755 | log_warning_errno(r, "Failed to add to transient environment, ignoring: %m"); | |
06af2a04 TB |
756 | } |
757 | ||
7b46fc6a | 758 | static void set_manager_settings(Manager *m) { |
aff3a9e1 | 759 | int r; |
7b46fc6a LP |
760 | |
761 | assert(m); | |
762 | ||
986935cf FB |
763 | /* Propagates the various manager settings into the manager object, i.e. properties that |
764 | * effect the manager itself (as opposed to just being inherited into newly allocated | |
765 | * units, see set_manager_defaults() above). */ | |
5b65ae15 | 766 | |
7b46fc6a | 767 | m->confirm_spawn = arg_confirm_spawn; |
2a12e32e | 768 | m->service_watchdogs = arg_service_watchdogs; |
7b46fc6a | 769 | m->cad_burst_action = arg_cad_burst_action; |
856bfaeb LB |
770 | /* Note that we don't do structured initialization here, otherwise it will reset the rate limit |
771 | * counter on every daemon-reload. */ | |
772 | m->reload_ratelimit.interval = arg_reload_limit_interval_sec; | |
773 | m->reload_ratelimit.burst = arg_reload_limit_burst; | |
7b46fc6a | 774 | |
986935cf FB |
775 | manager_set_watchdog(m, WATCHDOG_RUNTIME, arg_runtime_watchdog); |
776 | manager_set_watchdog(m, WATCHDOG_REBOOT, arg_reboot_watchdog); | |
777 | manager_set_watchdog(m, WATCHDOG_KEXEC, arg_kexec_watchdog); | |
5717062e | 778 | manager_set_watchdog(m, WATCHDOG_PRETIMEOUT, arg_pretimeout_watchdog); |
aff3a9e1 LB |
779 | r = manager_set_watchdog_pretimeout_governor(m, arg_watchdog_pretimeout_governor); |
780 | if (r < 0) | |
781 | log_warning_errno(r, "Failed to set watchdog pretimeout governor to '%s', ignoring: %m", arg_watchdog_pretimeout_governor); | |
986935cf | 782 | |
7c52d523 | 783 | manager_set_show_status(m, arg_show_status, "command line"); |
36cf4507 | 784 | m->status_unit_format = arg_status_unit_format; |
7b46fc6a LP |
785 | } |
786 | ||
f170852a | 787 | static int parse_argv(int argc, char *argv[]) { |
f170852a | 788 | enum { |
6339d3e6 YW |
789 | COMMON_GETOPT_ARGS, |
790 | SYSTEMD_GETOPT_ARGS, | |
f170852a LP |
791 | }; |
792 | ||
793 | static const struct option options[] = { | |
6339d3e6 YW |
794 | COMMON_GETOPT_OPTIONS, |
795 | SYSTEMD_GETOPT_OPTIONS, | |
fb472900 | 796 | {} |
f170852a LP |
797 | }; |
798 | ||
799 | int c, r; | |
9a9ca408 | 800 | bool user_arg_seen = false; |
f170852a LP |
801 | |
802 | assert(argc >= 1); | |
803 | assert(argv); | |
804 | ||
df0ff127 | 805 | if (getpid_cached() == 1) |
b770165a LP |
806 | opterr = 0; |
807 | ||
6339d3e6 | 808 | while ((c = getopt_long(argc, argv, SYSTEMD_GETOPT_SHORT_OPTIONS, options, NULL)) >= 0) |
f170852a LP |
809 | |
810 | switch (c) { | |
811 | ||
812 | case ARG_LOG_LEVEL: | |
fb472900 | 813 | r = log_set_max_level_from_string(optarg); |
2b5107e1 ZJS |
814 | if (r < 0) |
815 | return log_error_errno(r, "Failed to parse log level \"%s\": %m", optarg); | |
f170852a LP |
816 | |
817 | break; | |
818 | ||
819 | case ARG_LOG_TARGET: | |
fb472900 | 820 | r = log_set_target_from_string(optarg); |
2b5107e1 ZJS |
821 | if (r < 0) |
822 | return log_error_errno(r, "Failed to parse log target \"%s\": %m", optarg); | |
f170852a LP |
823 | |
824 | break; | |
825 | ||
bbe63281 LP |
826 | case ARG_LOG_COLOR: |
827 | ||
d0b170c8 | 828 | if (optarg) { |
fb472900 | 829 | r = log_show_color_from_string(optarg); |
2b5107e1 ZJS |
830 | if (r < 0) |
831 | return log_error_errno(r, "Failed to parse log color setting \"%s\": %m", | |
832 | optarg); | |
d0b170c8 LP |
833 | } else |
834 | log_show_color(true); | |
bbe63281 LP |
835 | |
836 | break; | |
837 | ||
838 | case ARG_LOG_LOCATION: | |
d0b170c8 | 839 | if (optarg) { |
fb472900 | 840 | r = log_show_location_from_string(optarg); |
2b5107e1 ZJS |
841 | if (r < 0) |
842 | return log_error_errno(r, "Failed to parse log location setting \"%s\": %m", | |
843 | optarg); | |
d0b170c8 LP |
844 | } else |
845 | log_show_location(true); | |
bbe63281 LP |
846 | |
847 | break; | |
848 | ||
c5673ed0 DS |
849 | case ARG_LOG_TIME: |
850 | ||
851 | if (optarg) { | |
852 | r = log_show_time_from_string(optarg); | |
853 | if (r < 0) | |
854 | return log_error_errno(r, "Failed to parse log time setting \"%s\": %m", | |
855 | optarg); | |
856 | } else | |
857 | log_show_time(true); | |
858 | ||
859 | break; | |
860 | ||
0a494f1f | 861 | case ARG_DEFAULT_STD_OUTPUT: |
fb472900 | 862 | r = exec_output_from_string(optarg); |
2b5107e1 ZJS |
863 | if (r < 0) |
864 | return log_error_errno(r, "Failed to parse default standard output setting \"%s\": %m", | |
865 | optarg); | |
c9e120e0 | 866 | arg_defaults.std_output = r; |
0a494f1f LP |
867 | break; |
868 | ||
869 | case ARG_DEFAULT_STD_ERROR: | |
fb472900 | 870 | r = exec_output_from_string(optarg); |
2b5107e1 ZJS |
871 | if (r < 0) |
872 | return log_error_errno(r, "Failed to parse default standard error output setting \"%s\": %m", | |
873 | optarg); | |
c9e120e0 | 874 | arg_defaults.std_error = r; |
0a494f1f LP |
875 | break; |
876 | ||
2f198e2f | 877 | case ARG_UNIT: |
e6e242ad | 878 | r = free_and_strdup(&arg_default_unit, optarg); |
23bbb0de | 879 | if (r < 0) |
2b5107e1 | 880 | return log_error_errno(r, "Failed to set default unit \"%s\": %m", optarg); |
f170852a LP |
881 | |
882 | break; | |
883 | ||
edb9aaa8 | 884 | case ARG_SYSTEM: |
4870133b | 885 | arg_runtime_scope = RUNTIME_SCOPE_SYSTEM; |
edb9aaa8 | 886 | break; |
a5dab5ce | 887 | |
af2d49f7 | 888 | case ARG_USER: |
4870133b | 889 | arg_runtime_scope = RUNTIME_SCOPE_USER; |
9a9ca408 | 890 | user_arg_seen = true; |
a5dab5ce | 891 | break; |
a5dab5ce | 892 | |
e965d56d | 893 | case ARG_TEST: |
fa0f4d8a | 894 | arg_action = ACTION_TEST; |
b87c2aa6 ZJS |
895 | break; |
896 | ||
897 | case ARG_NO_PAGER: | |
0221d68a | 898 | arg_pager_flags |= PAGER_DISABLE; |
e965d56d LP |
899 | break; |
900 | ||
9ba0bc4e ZJS |
901 | case ARG_VERSION: |
902 | arg_action = ACTION_VERSION; | |
903 | break; | |
904 | ||
e537352b | 905 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 906 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
907 | break; |
908 | ||
bbc1acab YW |
909 | case ARG_DUMP_BUS_PROPERTIES: |
910 | arg_action = ACTION_DUMP_BUS_PROPERTIES; | |
911 | break; | |
912 | ||
5c08257b ZJS |
913 | case ARG_BUS_INTROSPECT: |
914 | arg_bus_introspect = optarg; | |
915 | arg_action = ACTION_BUS_INTROSPECT; | |
916 | break; | |
917 | ||
9e58ff9c | 918 | case ARG_DUMP_CORE: |
599c7c54 ZJS |
919 | r = parse_boolean_argument("--dump-core", optarg, &arg_dump_core); |
920 | if (r < 0) | |
921 | return r; | |
b9e74c39 LP |
922 | break; |
923 | ||
924 | case ARG_CRASH_CHVT: | |
a07a7324 | 925 | r = parse_crash_chvt(optarg, &arg_crash_chvt); |
b9e74c39 | 926 | if (r < 0) |
2b5107e1 ZJS |
927 | return log_error_errno(r, "Failed to parse crash virtual terminal index: \"%s\": %m", |
928 | optarg); | |
9e58ff9c LP |
929 | break; |
930 | ||
931 | case ARG_CRASH_SHELL: | |
599c7c54 ZJS |
932 | r = parse_boolean_argument("--crash-shell", optarg, &arg_crash_shell); |
933 | if (r < 0) | |
934 | return r; | |
b9e74c39 LP |
935 | break; |
936 | ||
937 | case ARG_CRASH_REBOOT: | |
599c7c54 ZJS |
938 | r = parse_boolean_argument("--crash-reboot", optarg, &arg_crash_reboot); |
939 | if (r < 0) | |
940 | return r; | |
9e58ff9c LP |
941 | break; |
942 | ||
80876c20 | 943 | case ARG_CONFIRM_SPAWN: |
7d5ceb64 FB |
944 | arg_confirm_spawn = mfree(arg_confirm_spawn); |
945 | ||
946 | r = parse_confirm_spawn(optarg, &arg_confirm_spawn); | |
947 | if (r < 0) | |
2b5107e1 ZJS |
948 | return log_error_errno(r, "Failed to parse confirm spawn option: \"%s\": %m", |
949 | optarg); | |
80876c20 LP |
950 | break; |
951 | ||
2a12e32e | 952 | case ARG_SERVICE_WATCHDOGS: |
599c7c54 | 953 | r = parse_boolean_argument("--service-watchdogs=", optarg, &arg_service_watchdogs); |
2a12e32e | 954 | if (r < 0) |
599c7c54 | 955 | return r; |
2a12e32e JK |
956 | break; |
957 | ||
9e58ff9c | 958 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
959 | if (optarg) { |
960 | r = parse_show_status(optarg, &arg_show_status); | |
ac7ec288 | 961 | if (r < 0) |
2b5107e1 ZJS |
962 | return log_error_errno(r, "Failed to parse show status boolean: \"%s\": %m", |
963 | optarg); | |
d450b6f2 ZJS |
964 | } else |
965 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 966 | break; |
a5d87bf0 | 967 | |
a16e1123 LP |
968 | case ARG_DESERIALIZE: { |
969 | int fd; | |
970 | FILE *f; | |
971 | ||
e652663a | 972 | fd = parse_fd(optarg); |
baaa35ad | 973 | if (fd < 0) |
d2132d3d | 974 | return log_error_errno(fd, "Failed to parse serialization fd \"%s\": %m", optarg); |
a16e1123 | 975 | |
b9e74c39 | 976 | (void) fd_cloexec(fd, true); |
01e10de3 LP |
977 | |
978 | f = fdopen(fd, "r"); | |
4a62c710 | 979 | if (!f) |
2b5107e1 | 980 | return log_error_errno(errno, "Failed to open serialization fd %d: %m", fd); |
a16e1123 | 981 | |
74ca738f | 982 | safe_fclose(arg_serialization); |
d3b1c508 | 983 | arg_serialization = f; |
a16e1123 LP |
984 | |
985 | break; | |
986 | } | |
987 | ||
2660882b | 988 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 989 | arg_switched_root = true; |
d03bc1b8 HH |
990 | break; |
991 | ||
ee48dbd5 | 992 | case ARG_MACHINE_ID: |
aea3f594 | 993 | r = id128_from_string_nonzero(optarg, &arg_machine_id); |
54500613 | 994 | if (r < 0) |
2b5107e1 | 995 | return log_error_errno(r, "MachineID '%s' is not valid: %m", optarg); |
ee48dbd5 NC |
996 | break; |
997 | ||
f170852a | 998 | case 'h': |
fa0f4d8a | 999 | arg_action = ACTION_HELP; |
f170852a LP |
1000 | break; |
1001 | ||
1d2e23ab LP |
1002 | case 'D': |
1003 | log_set_max_level(LOG_DEBUG); | |
1004 | break; | |
1005 | ||
099663ff LP |
1006 | case 'b': |
1007 | case 's': | |
1008 | case 'z': | |
cd57038a ZJS |
1009 | /* Just to eat away the sysvinit kernel cmdline args that we'll parse in |
1010 | * parse_proc_cmdline_item() or ignore, without any getopt() error messages. | |
1011 | */ | |
099663ff | 1012 | case '?': |
df0ff127 | 1013 | if (getpid_cached() != 1) |
099663ff | 1014 | return -EINVAL; |
601185b4 ZJS |
1015 | else |
1016 | return 0; | |
099663ff | 1017 | |
601185b4 | 1018 | default: |
04499a70 | 1019 | assert_not_reached(); |
f170852a LP |
1020 | } |
1021 | ||
d7a0f1f4 | 1022 | if (optind < argc && getpid_cached() != 1) |
9a9ca408 ZJS |
1023 | /* Hmm, when we aren't run as init system let's complain about excess arguments */ |
1024 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Excess arguments."); | |
1025 | ||
4870133b | 1026 | if (arg_action == ACTION_RUN && arg_runtime_scope == RUNTIME_SCOPE_USER && !user_arg_seen) |
baaa35ad | 1027 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
9a9ca408 | 1028 | "Explicit --user argument required to run as user manager."); |
d821e6d6 | 1029 | |
f170852a LP |
1030 | return 0; |
1031 | } | |
1032 | ||
1033 | static int help(void) { | |
37ec0fdd LP |
1034 | _cleanup_free_ char *link = NULL; |
1035 | int r; | |
1036 | ||
1037 | r = terminal_urlify_man("systemd", "1", &link); | |
1038 | if (r < 0) | |
1039 | return log_oom(); | |
f170852a | 1040 | |
2e33c433 | 1041 | printf("%s [OPTIONS...]\n\n" |
7ae47326 ZJS |
1042 | "%sStarts and monitors system and user services.%s\n\n" |
1043 | "This program takes no positional arguments.\n\n" | |
1044 | "%sOptions%s:\n" | |
e537352b | 1045 | " -h --help Show this help\n" |
cb4069d9 | 1046 | " --version Show version\n" |
cd69e88b | 1047 | " --test Determine initial transaction, dump it and exit\n" |
03b3b55e ZJS |
1048 | " --system Combined with --test: operate in system mode\n" |
1049 | " --user Combined with --test: operate in user mode\n" | |
80876c20 | 1050 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbc1acab | 1051 | " --dump-bus-properties Dump exposed bus properties\n" |
5c08257b | 1052 | " --bus-introspect=PATH Write XML introspection data\n" |
9e58ff9c | 1053 | " --unit=UNIT Set default unit\n" |
b9e74c39 LP |
1054 | " --dump-core[=BOOL] Dump core on crash\n" |
1055 | " --crash-vt=NR Change to specified VT on crash\n" | |
1056 | " --crash-reboot[=BOOL] Reboot on crash\n" | |
1057 | " --crash-shell[=BOOL] Run shell on crash\n" | |
1058 | " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n" | |
03b3b55e ZJS |
1059 | " --show-status[=BOOL] Show status updates on the console during boot\n" |
1060 | " --log-target=TARGET Set log target (console, journal, kmsg,\n" | |
1061 | " journal-or-kmsg, null)\n" | |
1062 | " --log-level=LEVEL Set log level (debug, info, notice, warning,\n" | |
1063 | " err, crit, alert, emerg)\n" | |
b9e74c39 LP |
1064 | " --log-color[=BOOL] Highlight important log messages\n" |
1065 | " --log-location[=BOOL] Include code location in log messages\n" | |
c5673ed0 | 1066 | " --log-time[=BOOL] Prefix log messages with current time\n" |
0a494f1f | 1067 | " --default-standard-output= Set default standard output for services\n" |
37ec0fdd | 1068 | " --default-standard-error= Set default standard error output for services\n" |
03b3b55e | 1069 | " --no-pager Do not pipe output into a pager\n" |
bc556335 DDM |
1070 | "\nSee the %s for details.\n", |
1071 | program_invocation_short_name, | |
1072 | ansi_highlight(), | |
1073 | ansi_normal(), | |
1074 | ansi_underline(), | |
1075 | ansi_normal(), | |
1076 | link); | |
f170852a LP |
1077 | |
1078 | return 0; | |
1079 | } | |
1080 | ||
2cc856ac LP |
1081 | static int prepare_reexecute( |
1082 | Manager *m, | |
1083 | FILE **ret_f, | |
1084 | FDSet **ret_fds, | |
1085 | bool switching_root) { | |
1086 | ||
48b90859 LP |
1087 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1088 | _cleanup_fclose_ FILE *f = NULL; | |
a16e1123 LP |
1089 | int r; |
1090 | ||
1091 | assert(m); | |
2cc856ac LP |
1092 | assert(ret_f); |
1093 | assert(ret_fds); | |
a16e1123 | 1094 | |
6b78f9b4 | 1095 | r = manager_open_serialization(m, &f); |
48b90859 LP |
1096 | if (r < 0) |
1097 | return log_error_errno(r, "Failed to create serialization file: %m"); | |
a16e1123 | 1098 | |
71445ae7 | 1099 | /* Make sure nothing is really destructed when we shut down */ |
313cefa1 | 1100 | m->n_reloading++; |
718db961 | 1101 | bus_manager_send_reloading(m, true); |
71445ae7 | 1102 | |
6b78f9b4 | 1103 | fds = fdset_new(); |
48b90859 LP |
1104 | if (!fds) |
1105 | return log_oom(); | |
a16e1123 | 1106 | |
b3680f49 | 1107 | r = manager_serialize(m, f, fds, switching_root); |
48b90859 | 1108 | if (r < 0) |
d68c645b | 1109 | return r; |
a16e1123 | 1110 | |
48b90859 LP |
1111 | if (fseeko(f, 0, SEEK_SET) == (off_t) -1) |
1112 | return log_error_errno(errno, "Failed to rewind serialization fd: %m"); | |
a16e1123 | 1113 | |
6b78f9b4 | 1114 | r = fd_cloexec(fileno(f), false); |
48b90859 LP |
1115 | if (r < 0) |
1116 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m"); | |
a16e1123 | 1117 | |
6b78f9b4 | 1118 | r = fdset_cloexec(fds, false); |
48b90859 LP |
1119 | if (r < 0) |
1120 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m"); | |
a16e1123 | 1121 | |
2cc856ac LP |
1122 | *ret_f = TAKE_PTR(f); |
1123 | *ret_fds = TAKE_PTR(fds); | |
a16e1123 | 1124 | |
48b90859 | 1125 | return 0; |
a16e1123 LP |
1126 | } |
1127 | ||
a8b627aa LP |
1128 | static void bump_file_max_and_nr_open(void) { |
1129 | ||
ff3a7019 ZJS |
1130 | /* Let's bump fs.file-max and fs.nr_open to their respective maximums. On current kernels large |
1131 | * numbers of file descriptors are no longer a performance problem and their memory is properly | |
1132 | * tracked by memcg, thus counting them and limiting them in another two layers of limits is | |
1133 | * unnecessary and just complicates things. This function hence turns off 2 of the 4 levels of limits | |
1134 | * on file descriptors, and makes RLIMIT_NOLIMIT (soft + hard) the only ones that really matter. */ | |
a8b627aa LP |
1135 | |
1136 | #if BUMP_PROC_SYS_FS_FILE_MAX || BUMP_PROC_SYS_FS_NR_OPEN | |
a8b627aa LP |
1137 | int r; |
1138 | #endif | |
1139 | ||
1140 | #if BUMP_PROC_SYS_FS_FILE_MAX | |
409607c1 ZJS |
1141 | /* The maximum the kernel allows for this since 5.2 is LONG_MAX, use that. (Previously things were |
1142 | * different, but the operation would fail silently.) */ | |
a5fac1df | 1143 | r = sysctl_write("fs/file-max", LONG_MAX_STR); |
a8b627aa | 1144 | if (r < 0) |
b47e0fac ZJS |
1145 | log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, |
1146 | r, "Failed to bump fs.file-max, ignoring: %m"); | |
a8b627aa LP |
1147 | #endif |
1148 | ||
a8b627aa LP |
1149 | #if BUMP_PROC_SYS_FS_NR_OPEN |
1150 | int v = INT_MAX; | |
1151 | ||
ff3a7019 ZJS |
1152 | /* Argh! The kernel enforces maximum and minimum values on the fs.nr_open, but we don't really know |
1153 | * what they are. The expression by which the maximum is determined is dependent on the architecture, | |
1154 | * and is something we don't really want to copy to userspace, as it is dependent on implementation | |
1155 | * details of the kernel. Since the kernel doesn't expose the maximum value to us, we can only try | |
1156 | * and hope. Hence, let's start with INT_MAX, and then keep halving the value until we find one that | |
1157 | * works. Ugly? Yes, absolutely, but kernel APIs are kernel APIs, so what do can we do... 🤯 */ | |
a8b627aa LP |
1158 | |
1159 | for (;;) { | |
1160 | int k; | |
1161 | ||
1162 | v &= ~(__SIZEOF_POINTER__ - 1); /* Round down to next multiple of the pointer size */ | |
1163 | if (v < 1024) { | |
1164 | log_warning("Can't bump fs.nr_open, value too small."); | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | k = read_nr_open(); | |
1169 | if (k < 0) { | |
1170 | log_error_errno(k, "Failed to read fs.nr_open: %m"); | |
1171 | break; | |
1172 | } | |
1173 | if (k >= v) { /* Already larger */ | |
1174 | log_debug("Skipping bump, value is already larger."); | |
1175 | break; | |
1176 | } | |
1177 | ||
b47e0fac | 1178 | r = sysctl_writef("fs/nr_open", "%i", v); |
a8b627aa LP |
1179 | if (r == -EINVAL) { |
1180 | log_debug("Couldn't write fs.nr_open as %i, halving it.", v); | |
1181 | v /= 2; | |
1182 | continue; | |
1183 | } | |
1184 | if (r < 0) { | |
1185 | log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r, "Failed to bump fs.nr_open, ignoring: %m"); | |
1186 | break; | |
1187 | } | |
1188 | ||
1189 | log_debug("Successfully bumped fs.nr_open to %i", v); | |
1190 | break; | |
1191 | } | |
1192 | #endif | |
1193 | } | |
1194 | ||
eadb4f19 | 1195 | static int bump_rlimit_nofile(const struct rlimit *saved_rlimit) { |
cda7faa9 | 1196 | struct rlimit new_rlimit; |
9264cc39 | 1197 | int r, nr; |
4096d6f5 | 1198 | |
52d62075 LP |
1199 | /* Get the underlying absolute limit the kernel enforces */ |
1200 | nr = read_nr_open(); | |
1201 | ||
cda7faa9 LP |
1202 | /* Calculate the new limits to use for us. Never lower from what we inherited. */ |
1203 | new_rlimit = (struct rlimit) { | |
1204 | .rlim_cur = MAX((rlim_t) nr, saved_rlimit->rlim_cur), | |
1205 | .rlim_max = MAX((rlim_t) nr, saved_rlimit->rlim_max), | |
1206 | }; | |
1207 | ||
1208 | /* Shortcut if nothing changes. */ | |
1209 | if (saved_rlimit->rlim_max >= new_rlimit.rlim_max && | |
1210 | saved_rlimit->rlim_cur >= new_rlimit.rlim_cur) { | |
1211 | log_debug("RLIMIT_NOFILE is already as high or higher than we need it, not bumping."); | |
1212 | return 0; | |
1213 | } | |
1214 | ||
52d62075 LP |
1215 | /* Bump up the resource limit for ourselves substantially, all the way to the maximum the kernel allows, for |
1216 | * both hard and soft. */ | |
cda7faa9 | 1217 | r = setrlimit_closest(RLIMIT_NOFILE, &new_rlimit); |
23bbb0de | 1218 | if (r < 0) |
3ce40911 | 1219 | return log_warning_errno(r, "Setting RLIMIT_NOFILE failed, ignoring: %m"); |
4096d6f5 LP |
1220 | |
1221 | return 0; | |
1222 | } | |
1223 | ||
eadb4f19 | 1224 | static int bump_rlimit_memlock(const struct rlimit *saved_rlimit) { |
cda7faa9 | 1225 | struct rlimit new_rlimit; |
04d1ee0f | 1226 | uint64_t mm; |
fb3ae275 LP |
1227 | int r; |
1228 | ||
ff3a7019 ZJS |
1229 | /* BPF_MAP_TYPE_LPM_TRIE bpf maps are charged against RLIMIT_MEMLOCK, even if we have CAP_IPC_LOCK |
1230 | * which should normally disable such checks. We need them to implement IPAddressAllow= and | |
1231 | * IPAddressDeny=, hence let's bump the value high enough for our user. */ | |
fb3ae275 | 1232 | |
cda7faa9 LP |
1233 | /* Using MAX() on resource limits only is safe if RLIM_INFINITY is > 0. POSIX declares that rlim_t |
1234 | * must be unsigned, hence this is a given, but let's make this clear here. */ | |
1235 | assert_cc(RLIM_INFINITY > 0); | |
1236 | ||
ff3a7019 ZJS |
1237 | mm = physical_memory_scale(1, 8); /* Let's scale how much we allow to be locked by the amount of |
1238 | * physical RAM. We allow an eighth to be locked by us, just to | |
1239 | * pick a value. */ | |
04d1ee0f | 1240 | |
cda7faa9 | 1241 | new_rlimit = (struct rlimit) { |
04d1ee0f LP |
1242 | .rlim_cur = MAX3(HIGH_RLIMIT_MEMLOCK, saved_rlimit->rlim_cur, mm), |
1243 | .rlim_max = MAX3(HIGH_RLIMIT_MEMLOCK, saved_rlimit->rlim_max, mm), | |
cda7faa9 LP |
1244 | }; |
1245 | ||
1246 | if (saved_rlimit->rlim_max >= new_rlimit.rlim_cur && | |
1247 | saved_rlimit->rlim_cur >= new_rlimit.rlim_max) { | |
1248 | log_debug("RLIMIT_MEMLOCK is already as high or higher than we need it, not bumping."); | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | r = setrlimit_closest(RLIMIT_MEMLOCK, &new_rlimit); | |
fb3ae275 LP |
1253 | if (r < 0) |
1254 | return log_warning_errno(r, "Setting RLIMIT_MEMLOCK failed, ignoring: %m"); | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
80758717 | 1259 | static void test_usr(void) { |
80758717 | 1260 | |
796ac4c1 | 1261 | /* Check that /usr is either on the same file system as / or mounted already. */ |
80758717 | 1262 | |
db55bbf2 | 1263 | if (dir_is_empty("/usr", /* ignore_hidden_or_backup= */ false) <= 0) |
871c44a7 LP |
1264 | return; |
1265 | ||
8b173b5e | 1266 | log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. " |
871c44a7 | 1267 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
a25d9395 | 1268 | "Consult https://www.freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); |
871c44a7 LP |
1269 | } |
1270 | ||
d3b1c508 | 1271 | static int enforce_syscall_archs(Set *archs) { |
349cc4a5 | 1272 | #if HAVE_SECCOMP |
d3b1c508 LP |
1273 | int r; |
1274 | ||
83f12b27 FS |
1275 | if (!is_seccomp_available()) |
1276 | return 0; | |
1277 | ||
469830d1 | 1278 | r = seccomp_restrict_archs(arg_syscall_archs); |
d3b1c508 | 1279 | if (r < 0) |
469830d1 | 1280 | return log_error_errno(r, "Failed to enforce system call architecture restrication: %m"); |
d3b1c508 | 1281 | #endif |
469830d1 | 1282 | return 0; |
d3b1c508 LP |
1283 | } |
1284 | ||
4bd03515 ZJS |
1285 | static int os_release_status(void) { |
1286 | _cleanup_free_ char *pretty_name = NULL, *name = NULL, *version = NULL, | |
1287 | *ansi_color = NULL, *support_end = NULL; | |
b6e2f329 LP |
1288 | int r; |
1289 | ||
d58ad743 LP |
1290 | r = parse_os_release(NULL, |
1291 | "PRETTY_NAME", &pretty_name, | |
4bd03515 ZJS |
1292 | "NAME", &name, |
1293 | "VERSION", &version, | |
1294 | "ANSI_COLOR", &ansi_color, | |
1295 | "SUPPORT_END", &support_end); | |
d58ad743 | 1296 | if (r < 0) |
4bd03515 ZJS |
1297 | return log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, |
1298 | "Failed to read os-release file, ignoring: %m"); | |
b6e2f329 | 1299 | |
02b7005e | 1300 | const char *label = os_release_pretty_name(pretty_name, name); |
4bd03515 ZJS |
1301 | |
1302 | if (show_status_on(arg_show_status)) { | |
1303 | if (log_get_show_color()) | |
1304 | status_printf(NULL, 0, | |
1305 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1306 | empty_to_null(ansi_color) ?: "1", | |
1307 | label); | |
1308 | else | |
1309 | status_printf(NULL, 0, | |
1310 | "\nWelcome to %s!\n", | |
1311 | label); | |
1312 | } | |
1313 | ||
6bfe9b3b | 1314 | if (support_end && os_release_support_ended(support_end, /* quiet */ false, NULL) > 0) |
4bd03515 ZJS |
1315 | /* pretty_name may include the version already, so we'll print the version only if we |
1316 | * have it and we're not using pretty_name. */ | |
1317 | status_printf(ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL, 0, | |
1318 | "This OS version (%s%s%s) is past its end-of-support date (%s)", | |
1319 | label, | |
1320 | (pretty_name || !version) ? "" : " version ", | |
1321 | (pretty_name || !version) ? "" : version, | |
1322 | support_end); | |
1323 | ||
1324 | return 0; | |
b6e2f329 LP |
1325 | } |
1326 | ||
3f37a825 LB |
1327 | static int setup_os_release(RuntimeScope scope) { |
1328 | _cleanup_free_ char *os_release_dst = NULL; | |
1329 | const char *os_release_src = "/etc/os-release"; | |
1330 | int r; | |
1331 | ||
1332 | if (access("/etc/os-release", F_OK) < 0) { | |
1333 | if (errno != ENOENT) | |
1334 | log_debug_errno(errno, "Failed to check if /etc/os-release exists, ignoring: %m"); | |
1335 | ||
1336 | os_release_src = "/usr/lib/os-release"; | |
1337 | } | |
1338 | ||
1339 | if (scope == RUNTIME_SCOPE_SYSTEM) { | |
663e2756 | 1340 | os_release_dst = strdup("/run/systemd/propagate/.os-release-stage/os-release"); |
3f37a825 LB |
1341 | if (!os_release_dst) |
1342 | return log_oom_debug(); | |
1343 | } else { | |
663e2756 | 1344 | if (asprintf(&os_release_dst, "/run/user/" UID_FMT "/systemd/propagate/.os-release-stage/os-release", geteuid()) < 0) |
3f37a825 LB |
1345 | return log_oom_debug(); |
1346 | } | |
1347 | ||
1348 | r = mkdir_parents_label(os_release_dst, 0755); | |
bf85c239 | 1349 | if (r < 0) |
3f37a825 LB |
1350 | return log_debug_errno(r, "Failed to create parent directory of %s, ignoring: %m", os_release_dst); |
1351 | ||
663e2756 | 1352 | r = copy_file_atomic(os_release_src, os_release_dst, 0644, COPY_MAC_CREATE|COPY_REPLACE); |
3f37a825 LB |
1353 | if (r < 0) |
1354 | return log_debug_errno(r, "Failed to create %s, ignoring: %m", os_release_dst); | |
1355 | ||
1356 | return 0; | |
1357 | } | |
1358 | ||
fdd25311 LP |
1359 | static int write_container_id(void) { |
1360 | const char *c; | |
7756528e | 1361 | int r = 0; /* avoid false maybe-uninitialized warning */ |
fdd25311 LP |
1362 | |
1363 | c = getenv("container"); | |
1364 | if (isempty(c)) | |
1365 | return 0; | |
1366 | ||
2053593f | 1367 | WITH_UMASK(0022) |
8612da97 | 1368 | r = write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE); |
19854865 | 1369 | if (r < 0) |
f1f849b0 | 1370 | return log_warning_errno(r, "Failed to write /run/systemd/container, ignoring: %m"); |
19854865 LP |
1371 | |
1372 | return 1; | |
1373 | } | |
1374 | ||
1375 | static int bump_unix_max_dgram_qlen(void) { | |
1376 | _cleanup_free_ char *qlen = NULL; | |
1377 | unsigned long v; | |
1378 | int r; | |
1379 | ||
ff3a7019 ZJS |
1380 | /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel default of 16 is simply too low. We set |
1381 | * the value really really early during boot, so that it is actually applied to all our sockets, | |
1382 | * including the $NOTIFY_SOCKET one. */ | |
19854865 LP |
1383 | |
1384 | r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen); | |
1385 | if (r < 0) | |
ff3a7019 ZJS |
1386 | return log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, |
1387 | "Failed to read AF_UNIX datagram queue length, ignoring: %m"); | |
19854865 LP |
1388 | |
1389 | r = safe_atolu(qlen, &v); | |
1390 | if (r < 0) | |
3130fca5 | 1391 | return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length '%s', ignoring: %m", qlen); |
19854865 LP |
1392 | |
1393 | if (v >= DEFAULT_UNIX_MAX_DGRAM_QLEN) | |
1394 | return 0; | |
1395 | ||
27c8ca43 | 1396 | r = sysctl_write("net/unix/max_dgram_qlen", STRINGIFY(DEFAULT_UNIX_MAX_DGRAM_QLEN)); |
19854865 LP |
1397 | if (r < 0) |
1398 | return log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r, | |
1399 | "Failed to bump AF_UNIX datagram queue length, ignoring: %m"); | |
1400 | ||
1401 | return 1; | |
fdd25311 LP |
1402 | } |
1403 | ||
32391275 FB |
1404 | static int fixup_environment(void) { |
1405 | _cleanup_free_ char *term = NULL; | |
4dc63c4b | 1406 | const char *t; |
32391275 FB |
1407 | int r; |
1408 | ||
43db615b LP |
1409 | /* Only fix up the environment when we are started as PID 1 */ |
1410 | if (getpid_cached() != 1) | |
1411 | return 0; | |
1412 | ||
1413 | /* We expect the environment to be set correctly if run inside a container. */ | |
84af7821 LP |
1414 | if (detect_container() > 0) |
1415 | return 0; | |
1416 | ||
ff3a7019 ZJS |
1417 | /* When started as PID1, the kernel uses /dev/console for our stdios and uses TERM=linux whatever the |
1418 | * backend device used by the console. We try to make a better guess here since some consoles might | |
1419 | * not have support for color mode for example. | |
32391275 | 1420 | * |
43db615b | 1421 | * However if TERM was configured through the kernel command line then leave it alone. */ |
1d84ad94 | 1422 | r = proc_cmdline_get_key("TERM", 0, &term); |
32391275 FB |
1423 | if (r < 0) |
1424 | return r; | |
32391275 | 1425 | |
153d5dfd DDM |
1426 | if (r == 0) { |
1427 | r = proc_cmdline_get_key("systemd.tty.term.console", 0, &term); | |
1428 | if (r < 0) | |
1429 | return r; | |
1430 | } | |
1431 | ||
4dc63c4b LP |
1432 | t = term ?: default_term_for_tty("/dev/console"); |
1433 | ||
1434 | if (setenv("TERM", t, 1) < 0) | |
32391275 FB |
1435 | return -errno; |
1436 | ||
9d48671c | 1437 | /* The kernels sets HOME=/ for init. Let's undo this. */ |
44ee03d1 ZJS |
1438 | if (path_equal_ptr(getenv("HOME"), "/")) |
1439 | assert_se(unsetenv("HOME") == 0); | |
9d48671c | 1440 | |
32391275 FB |
1441 | return 0; |
1442 | } | |
1443 | ||
6808a0bc LP |
1444 | static void redirect_telinit(int argc, char *argv[]) { |
1445 | ||
1446 | /* This is compatibility support for SysV, where calling init as a user is identical to telinit. */ | |
1447 | ||
1448 | #if HAVE_SYSV_COMPAT | |
1449 | if (getpid_cached() == 1) | |
1450 | return; | |
1451 | ||
2306d177 | 1452 | if (!invoked_as(argv, "init")) |
6808a0bc LP |
1453 | return; |
1454 | ||
1455 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1456 | log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
a45d7127 | 1457 | exit(EXIT_FAILURE); |
6808a0bc LP |
1458 | #endif |
1459 | } | |
1460 | ||
b22d392d | 1461 | static int become_shutdown(int objective, int retval) { |
b22d392d VC |
1462 | static const char* const table[_MANAGER_OBJECTIVE_MAX] = { |
1463 | [MANAGER_EXIT] = "exit", | |
1464 | [MANAGER_REBOOT] = "reboot", | |
1465 | [MANAGER_POWEROFF] = "poweroff", | |
1466 | [MANAGER_HALT] = "halt", | |
1467 | [MANAGER_KEXEC] = "kexec", | |
1468 | }; | |
4a36297c | 1469 | |
d2ebd50d | 1470 | char log_level[STRLEN("--log-level=") + DECIMAL_STR_MAX(int)], |
4688b089 ZJS |
1471 | timeout[STRLEN("--timeout=") + DECIMAL_STR_MAX(usec_t) + STRLEN("us")], |
1472 | exit_code[STRLEN("--exit-code=") + DECIMAL_STR_MAX(uint8_t)]; | |
4a36297c LP |
1473 | |
1474 | _cleanup_strv_free_ char **env_block = NULL; | |
f16890f8 | 1475 | usec_t watchdog_timer = 0; |
4a36297c LP |
1476 | int r; |
1477 | ||
b22d392d VC |
1478 | assert(objective >= 0 && objective < _MANAGER_OBJECTIVE_MAX); |
1479 | assert(table[objective]); | |
4a36297c | 1480 | |
d2ebd50d | 1481 | xsprintf(log_level, "--log-level=%d", log_get_max_level()); |
c9e120e0 | 1482 | xsprintf(timeout, "--timeout=%" PRI_USEC "us", arg_defaults.timeout_stop_usec); |
4a36297c | 1483 | |
4688b089 ZJS |
1484 | const char* command_line[10] = { |
1485 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1486 | table[objective], | |
1487 | log_level, | |
1488 | timeout, | |
1489 | /* Note that the last position is a terminator and must contain NULL. */ | |
1490 | }; | |
1491 | size_t pos = 4; | |
1492 | ||
1493 | assert(command_line[pos-1]); | |
1494 | assert(!command_line[pos]); | |
1495 | ||
4a36297c LP |
1496 | switch (log_get_target()) { |
1497 | ||
1498 | case LOG_TARGET_KMSG: | |
1499 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
1500 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
d2ebd50d | 1501 | command_line[pos++] = "--log-target=kmsg"; |
4a36297c LP |
1502 | break; |
1503 | ||
1504 | case LOG_TARGET_NULL: | |
6b7f150b | 1505 | command_line[pos++] = "--log-target=null"; |
4a36297c LP |
1506 | break; |
1507 | ||
1508 | case LOG_TARGET_CONSOLE: | |
1509 | default: | |
d2ebd50d | 1510 | command_line[pos++] = "--log-target=console"; |
4a36297c LP |
1511 | break; |
1512 | }; | |
1513 | ||
1514 | if (log_get_show_color()) | |
1515 | command_line[pos++] = "--log-color"; | |
1516 | ||
1517 | if (log_get_show_location()) | |
1518 | command_line[pos++] = "--log-location"; | |
1519 | ||
c5673ed0 DS |
1520 | if (log_get_show_time()) |
1521 | command_line[pos++] = "--log-time"; | |
1522 | ||
3f92250f DDM |
1523 | xsprintf(exit_code, "--exit-code=%d", retval); |
1524 | command_line[pos++] = exit_code; | |
4a36297c | 1525 | |
14ecfc1c | 1526 | assert(pos < ELEMENTSOF(command_line)); |
4688b089 ZJS |
1527 | |
1528 | /* The watchdog: */ | |
4a36297c | 1529 | |
b22d392d | 1530 | if (objective == MANAGER_REBOOT) |
65224c1d | 1531 | watchdog_timer = arg_reboot_watchdog; |
b22d392d | 1532 | else if (objective == MANAGER_KEXEC) |
acafd7d8 LB |
1533 | watchdog_timer = arg_kexec_watchdog; |
1534 | ||
f16890f8 | 1535 | /* If we reboot or kexec let's set the shutdown watchdog and tell the |
5717062e CK |
1536 | * shutdown binary to repeatedly ping it. |
1537 | * Disable the pretimeout watchdog, as we do not support it from the shutdown binary. */ | |
1538 | (void) watchdog_setup_pretimeout(0); | |
aff3a9e1 | 1539 | (void) watchdog_setup_pretimeout_governor(NULL); |
f16890f8 FB |
1540 | r = watchdog_setup(watchdog_timer); |
1541 | watchdog_close(r < 0); | |
4a36297c | 1542 | |
4688b089 ZJS |
1543 | /* The environment block: */ |
1544 | ||
1545 | env_block = strv_copy(environ); | |
1546 | ||
f16890f8 FB |
1547 | /* Tell the binary how often to ping, ignore failure */ |
1548 | (void) strv_extendf(&env_block, "WATCHDOG_USEC="USEC_FMT, watchdog_timer); | |
8a2c1fbf | 1549 | |
f16890f8 FB |
1550 | if (arg_watchdog_device) |
1551 | (void) strv_extendf(&env_block, "WATCHDOG_DEVICE=%s", arg_watchdog_device); | |
4a36297c | 1552 | |
3178d23d FB |
1553 | /* Avoid the creation of new processes forked by the kernel; at this |
1554 | * point, we will not listen to the signals anyway */ | |
4a36297c LP |
1555 | if (detect_container() <= 0) |
1556 | (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); | |
1557 | ||
1558 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); | |
1559 | return -errno; | |
1560 | } | |
1561 | ||
e839bafd LP |
1562 | static void initialize_clock(void) { |
1563 | int r; | |
1564 | ||
3753325b LP |
1565 | /* This is called very early on, before we parse the kernel command line or otherwise figure out why |
1566 | * we are running, but only once. */ | |
1567 | ||
e839bafd LP |
1568 | if (clock_is_localtime(NULL) > 0) { |
1569 | int min; | |
1570 | ||
ff3a7019 | 1571 | /* The very first call of settimeofday() also does a time warp in the kernel. |
e839bafd | 1572 | * |
ff3a7019 ZJS |
1573 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on external tools to |
1574 | * take care of maintaining the RTC and do all adjustments. This matches the behavior of | |
1575 | * Windows, which leaves the RTC alone if the registry tells that the RTC runs in UTC. | |
e839bafd LP |
1576 | */ |
1577 | r = clock_set_timezone(&min); | |
1578 | if (r < 0) | |
1579 | log_error_errno(r, "Failed to apply local time delta, ignoring: %m"); | |
1580 | else | |
1581 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
1582 | ||
d46b79bb | 1583 | } else if (!in_initrd()) |
e839bafd LP |
1584 | /* |
1585 | * Do a dummy very first call to seal the kernel's time warp magic. | |
1586 | * | |
ff3a7019 ZJS |
1587 | * Do not call this from inside the initrd. The initrd might not carry /etc/adjtime with |
1588 | * LOCAL, but the real system could be set up that way. In such case, we need to delay the | |
1589 | * time-warp or the sealing until we reach the real system. | |
e839bafd | 1590 | * |
ff3a7019 ZJS |
1591 | * Do no set the kernel's timezone. The concept of local time cannot be supported reliably, |
1592 | * the time will jump or be incorrect at every daylight saving time change. All kernel local | |
1593 | * time concepts will be treated as UTC that way. | |
e839bafd LP |
1594 | */ |
1595 | (void) clock_reset_timewarp(); | |
e839bafd | 1596 | |
b10abe4b EI |
1597 | ClockChangeDirection change_dir; |
1598 | r = clock_apply_epoch(&change_dir); | |
1599 | if (r > 0 && change_dir == CLOCK_CHANGE_FORWARD) | |
e839bafd | 1600 | log_info("System time before build time, advancing clock."); |
b10abe4b EI |
1601 | else if (r > 0 && change_dir == CLOCK_CHANGE_BACKWARD) |
1602 | log_info("System time is further ahead than %s after build time, resetting clock to build time.", | |
1603 | FORMAT_TIMESPAN(CLOCK_VALID_RANGE_USEC_MAX, USEC_PER_DAY)); | |
1604 | else if (r < 0 && change_dir == CLOCK_CHANGE_FORWARD) | |
1605 | log_error_errno(r, "Current system time is before build time, but cannot correct: %m"); | |
1606 | else if (r < 0 && change_dir == CLOCK_CHANGE_BACKWARD) | |
1607 | log_error_errno(r, "Current system time is further ahead %s after build time, but cannot correct: %m", | |
1608 | FORMAT_TIMESPAN(CLOCK_VALID_RANGE_USEC_MAX, USEC_PER_DAY)); | |
e839bafd LP |
1609 | } |
1610 | ||
3753325b | 1611 | static void apply_clock_update(void) { |
3753325b LP |
1612 | /* This is called later than initialize_clock(), i.e. after we parsed configuration files/kernel |
1613 | * command line and such. */ | |
1614 | ||
1615 | if (arg_clock_usec == 0) | |
1616 | return; | |
1617 | ||
45250e66 LP |
1618 | if (getpid_cached() != 1) |
1619 | return; | |
1620 | ||
52bb308c | 1621 | if (clock_settime(CLOCK_REALTIME, TIMESPEC_STORE(arg_clock_usec)) < 0) |
3753325b | 1622 | log_error_errno(errno, "Failed to set system clock to time specified on kernel command line: %m"); |
04f5c018 | 1623 | else |
3753325b | 1624 | log_info("Set system clock to %s, as specified on the kernel command line.", |
04f5c018 | 1625 | FORMAT_TIMESTAMP(arg_clock_usec)); |
3753325b LP |
1626 | } |
1627 | ||
d247f232 | 1628 | static void cmdline_take_random_seed(void) { |
d247f232 LP |
1629 | size_t suggested; |
1630 | int r; | |
1631 | ||
1632 | if (arg_random_seed_size == 0) | |
1633 | return; | |
1634 | ||
1635 | if (getpid_cached() != 1) | |
1636 | return; | |
1637 | ||
1638 | assert(arg_random_seed); | |
1639 | suggested = random_pool_size(); | |
1640 | ||
1641 | if (arg_random_seed_size < suggested) | |
1642 | log_warning("Random seed specified on kernel command line has size %zu, but %zu bytes required to fill entropy pool.", | |
1643 | arg_random_seed_size, suggested); | |
1644 | ||
61bd7d1e | 1645 | r = random_write_entropy(-1, arg_random_seed, arg_random_seed_size, true); |
d247f232 LP |
1646 | if (r < 0) { |
1647 | log_warning_errno(r, "Failed to credit entropy specified on kernel command line, ignoring: %m"); | |
1648 | return; | |
1649 | } | |
1650 | ||
1651 | log_notice("Successfully credited entropy passed on kernel command line.\n" | |
ff3a7019 ZJS |
1652 | "Note that the seed provided this way is accessible to unprivileged programs. " |
1653 | "This functionality should not be used outside of testing environments."); | |
d247f232 LP |
1654 | } |
1655 | ||
1e41242e | 1656 | static void initialize_coredump(bool skip_setup) { |
1e41242e LP |
1657 | if (getpid_cached() != 1) |
1658 | return; | |
1659 | ||
ff3a7019 ZJS |
1660 | /* Don't limit the core dump size, so that coredump handlers such as systemd-coredump (which honour |
1661 | * the limit) will process core dumps for system services by default. */ | |
1e41242e LP |
1662 | if (setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)) < 0) |
1663 | log_warning_errno(errno, "Failed to set RLIMIT_CORE: %m"); | |
1664 | ||
ff3a7019 ZJS |
1665 | /* But at the same time, turn off the core_pattern logic by default, so that no coredumps are stored |
1666 | * until the systemd-coredump tool is enabled via sysctl. However it can be changed via the kernel | |
32e27670 | 1667 | * command line later so core dumps can still be generated during early startup and in initrd. */ |
1e41242e | 1668 | if (!skip_setup) |
e557b1a6 | 1669 | disable_coredumps(); |
1e41242e LP |
1670 | } |
1671 | ||
c6885f5f FB |
1672 | static void initialize_core_pattern(bool skip_setup) { |
1673 | int r; | |
1674 | ||
1675 | if (skip_setup || !arg_early_core_pattern) | |
1676 | return; | |
1677 | ||
1678 | if (getpid_cached() != 1) | |
1679 | return; | |
1680 | ||
57512c89 | 1681 | r = write_string_file("/proc/sys/kernel/core_pattern", arg_early_core_pattern, WRITE_STRING_FILE_DISABLE_BUFFER); |
c6885f5f | 1682 | if (r < 0) |
ff3a7019 ZJS |
1683 | log_warning_errno(r, "Failed to write '%s' to /proc/sys/kernel/core_pattern, ignoring: %m", |
1684 | arg_early_core_pattern); | |
c6885f5f FB |
1685 | } |
1686 | ||
61fbbac1 ZJS |
1687 | static void update_cpu_affinity(bool skip_setup) { |
1688 | _cleanup_free_ char *mask = NULL; | |
1689 | ||
1690 | if (skip_setup || !arg_cpu_affinity.set) | |
1691 | return; | |
1692 | ||
1693 | assert(arg_cpu_affinity.allocated > 0); | |
1694 | ||
667030bf ZJS |
1695 | mask = cpu_set_to_range_string(&arg_cpu_affinity); |
1696 | log_debug("Setting CPU affinity to {%s}.", strnull(mask)); | |
61fbbac1 ZJS |
1697 | |
1698 | if (sched_setaffinity(0, arg_cpu_affinity.allocated, arg_cpu_affinity.set) < 0) | |
6b1fa539 | 1699 | log_warning_errno(errno, "Failed to set CPU affinity, ignoring: %m"); |
61fbbac1 ZJS |
1700 | } |
1701 | ||
b070c7c0 MS |
1702 | static void update_numa_policy(bool skip_setup) { |
1703 | int r; | |
1704 | _cleanup_free_ char *nodes = NULL; | |
1705 | const char * policy = NULL; | |
1706 | ||
1707 | if (skip_setup || !mpol_is_valid(numa_policy_get_type(&arg_numa_policy))) | |
1708 | return; | |
1709 | ||
1710 | if (DEBUG_LOGGING) { | |
1711 | policy = mpol_to_string(numa_policy_get_type(&arg_numa_policy)); | |
1712 | nodes = cpu_set_to_range_string(&arg_numa_policy.nodes); | |
667030bf | 1713 | log_debug("Setting NUMA policy to %s, with nodes {%s}.", strnull(policy), strnull(nodes)); |
b070c7c0 MS |
1714 | } |
1715 | ||
1716 | r = apply_numa_policy(&arg_numa_policy); | |
1717 | if (r == -EOPNOTSUPP) | |
1718 | log_debug_errno(r, "NUMA support not available, ignoring."); | |
1719 | else if (r < 0) | |
6b1fa539 | 1720 | log_warning_errno(r, "Failed to set NUMA memory policy, ignoring: %m"); |
b070c7c0 MS |
1721 | } |
1722 | ||
19fd72df LP |
1723 | static void filter_args( |
1724 | const char* dst[], | |
1725 | size_t *dst_index, | |
1726 | char **src, | |
1727 | int argc) { | |
1728 | ||
846f1da4 | 1729 | assert(dst); |
19fd72df | 1730 | assert(dst_index); |
846f1da4 ZJS |
1731 | |
1732 | /* Copy some filtered arguments into the dst array from src. */ | |
1733 | for (int i = 1; i < argc; i++) { | |
1734 | if (STR_IN_SET(src[i], | |
1735 | "--switched-root", | |
1736 | "--system", | |
1737 | "--user")) | |
1738 | continue; | |
1739 | ||
1740 | if (startswith(src[i], "--deserialize=")) | |
1741 | continue; | |
1742 | if (streq(src[i], "--deserialize")) { | |
1743 | i++; /* Skip the argument too */ | |
1744 | continue; | |
1745 | } | |
1746 | ||
1747 | /* Skip target unit designators. We already acted upon this information and have queued | |
1748 | * appropriate jobs. We don't want to redo all this after reexecution. */ | |
1749 | if (startswith(src[i], "--unit=")) | |
1750 | continue; | |
1751 | if (streq(src[i], "--unit")) { | |
1752 | i++; /* Skip the argument too */ | |
1753 | continue; | |
1754 | } | |
1755 | ||
846f1da4 | 1756 | /* Seems we have a good old option. Let's pass it over to the new instance. */ |
19fd72df | 1757 | dst[(*dst_index)++] = src[i]; |
846f1da4 ZJS |
1758 | } |
1759 | } | |
1760 | ||
05be3e8b LB |
1761 | static void finish_remaining_processes(ManagerObjective objective) { |
1762 | assert(objective >= 0 && objective < _MANAGER_OBJECTIVE_MAX); | |
1763 | ||
1764 | /* Kill all remaining processes from the initrd, but don't wait for them, so that we can handle the | |
1765 | * SIGCHLD for them after deserializing. */ | |
1766 | if (IN_SET(objective, MANAGER_SWITCH_ROOT, MANAGER_SOFT_REBOOT)) | |
c9e120e0 | 1767 | broadcast_signal(SIGTERM, /* wait_for_exit= */ false, /* send_sighup= */ true, arg_defaults.timeout_stop_usec); |
05be3e8b | 1768 | |
559214cb LB |
1769 | /* On soft reboot really make sure nothing is left. Note that this will skip cgroups |
1770 | * of units that were configured with SurviveFinalKillSignal=yes. */ | |
05be3e8b | 1771 | if (objective == MANAGER_SOFT_REBOOT) |
c9e120e0 | 1772 | broadcast_signal(SIGKILL, /* wait_for_exit= */ false, /* send_sighup= */ false, arg_defaults.timeout_stop_usec); |
05be3e8b LB |
1773 | } |
1774 | ||
1e3eee8c ZJS |
1775 | static int do_reexecute( |
1776 | ManagerObjective objective, | |
3c7878f9 | 1777 | int argc, |
846f1da4 | 1778 | char* argv[], |
3c7878f9 LP |
1779 | const struct rlimit *saved_rlimit_nofile, |
1780 | const struct rlimit *saved_rlimit_memlock, | |
1781 | FDSet *fds, | |
1782 | const char *switch_root_dir, | |
1783 | const char *switch_root_init, | |
1784 | const char **ret_error_message) { | |
1785 | ||
19fd72df | 1786 | size_t i, args_size; |
3c7878f9 LP |
1787 | const char **args; |
1788 | int r; | |
1789 | ||
13ffc607 | 1790 | assert(IN_SET(objective, MANAGER_REEXECUTE, MANAGER_SWITCH_ROOT, MANAGER_SOFT_REBOOT)); |
19fd72df | 1791 | assert(argc >= 0); |
3c7878f9 LP |
1792 | assert(saved_rlimit_nofile); |
1793 | assert(saved_rlimit_memlock); | |
1794 | assert(ret_error_message); | |
1795 | ||
aaa27e2e DDM |
1796 | if (switch_root_init) { |
1797 | r = chase(switch_root_init, switch_root_dir, CHASE_PREFIX_ROOT, NULL, NULL); | |
1798 | if (r < 0) | |
1799 | log_warning_errno(r, "Failed to chase configured init %s/%s: %m", | |
1800 | strempty(switch_root_dir), switch_root_init); | |
1801 | } else { | |
1802 | r = chase(SYSTEMD_BINARY_PATH, switch_root_dir, CHASE_PREFIX_ROOT, NULL, NULL); | |
1803 | if (r < 0) | |
1804 | log_debug_errno(r, "Failed to chase our own binary %s/%s: %m", | |
1805 | strempty(switch_root_dir), SYSTEMD_BINARY_PATH); | |
1806 | } | |
1807 | ||
1808 | if (r < 0) { | |
1809 | r = chase("/sbin/init", switch_root_dir, CHASE_PREFIX_ROOT, NULL, NULL); | |
1810 | if (r < 0) | |
1811 | return log_error_errno(r, "Failed to chase %s/sbin/init", strempty(switch_root_dir)); | |
1812 | } | |
1813 | ||
ff3a7019 ZJS |
1814 | /* Close and disarm the watchdog, so that the new instance can reinitialize it, but doesn't get |
1815 | * rebooted while we do that */ | |
3c7878f9 LP |
1816 | watchdog_close(true); |
1817 | ||
ddfa8b0b LP |
1818 | /* Reset RLIMIT_NOFILE + RLIMIT_MEMLOCK back to the kernel defaults, so that the new systemd can pass |
1819 | * the kernel default to its child processes */ | |
1820 | if (saved_rlimit_nofile->rlim_cur != 0) | |
3c7878f9 | 1821 | (void) setrlimit(RLIMIT_NOFILE, saved_rlimit_nofile); |
ddfa8b0b | 1822 | if (saved_rlimit_memlock->rlim_cur != RLIM_INFINITY) |
3c7878f9 LP |
1823 | (void) setrlimit(RLIMIT_MEMLOCK, saved_rlimit_memlock); |
1824 | ||
05be3e8b | 1825 | finish_remaining_processes(objective); |
13ffc607 LP |
1826 | |
1827 | if (!switch_root_dir && objective == MANAGER_SOFT_REBOOT) { | |
1828 | /* If no switch root dir is specified, then check if /run/nextroot/ qualifies and use that */ | |
1829 | r = path_is_os_tree("/run/nextroot"); | |
1830 | if (r < 0 && r != -ENOENT) | |
1831 | log_debug_errno(r, "Failed to determine if /run/nextroot/ is a valid OS tree, ignoring: %m"); | |
1832 | else if (r > 0) | |
1833 | switch_root_dir = "/run/nextroot"; | |
1834 | } | |
3c7878f9 | 1835 | |
13ffc607 | 1836 | if (switch_root_dir) { |
13ffc607 LP |
1837 | r = switch_root(/* new_root= */ switch_root_dir, |
1838 | /* old_root_after= */ NULL, | |
b12d41a8 | 1839 | /* flags= */ (objective == MANAGER_SWITCH_ROOT ? SWITCH_ROOT_DESTROY_OLD_ROOT : 0) | |
c2d62118 | 1840 | (objective == MANAGER_SOFT_REBOOT ? 0 : SWITCH_ROOT_RECURSIVE_RUN)); |
3c7878f9 LP |
1841 | if (r < 0) |
1842 | log_error_errno(r, "Failed to switch root, trying to continue: %m"); | |
1843 | } | |
1844 | ||
d2ebd50d | 1845 | args_size = argc + 5; |
3c7878f9 LP |
1846 | args = newa(const char*, args_size); |
1847 | ||
1848 | if (!switch_root_init) { | |
d2ebd50d | 1849 | char sfd[STRLEN("--deserialize=") + DECIMAL_STR_MAX(int)]; |
3c7878f9 | 1850 | |
ff3a7019 ZJS |
1851 | /* First try to spawn ourselves with the right path, and with full serialization. We do this |
1852 | * only if the user didn't specify an explicit init to spawn. */ | |
3c7878f9 LP |
1853 | |
1854 | assert(arg_serialization); | |
1855 | assert(fds); | |
1856 | ||
d2ebd50d | 1857 | xsprintf(sfd, "--deserialize=%i", fileno(arg_serialization)); |
3c7878f9 | 1858 | |
846f1da4 | 1859 | i = 1; /* Leave args[0] empty for now. */ |
846f1da4 | 1860 | |
06afda6b FS |
1861 | /* Put our stuff first to make sure it always gets parsed in case |
1862 | * we get weird stuff from the kernel cmdline (like --) */ | |
13ffc607 | 1863 | if (IN_SET(objective, MANAGER_SWITCH_ROOT, MANAGER_SOFT_REBOOT)) |
3c7878f9 | 1864 | args[i++] = "--switched-root"; |
40d73340 | 1865 | args[i++] = runtime_scope_cmdline_option_to_string(arg_runtime_scope); |
3c7878f9 | 1866 | args[i++] = sfd; |
06afda6b FS |
1867 | |
1868 | filter_args(args, &i, argv, argc); | |
1869 | ||
3c7878f9 LP |
1870 | args[i++] = NULL; |
1871 | ||
1872 | assert(i <= args_size); | |
1873 | ||
1874 | /* | |
50b35193 ZJS |
1875 | * We want valgrind to print its memory usage summary before reexecution. Valgrind won't do |
1876 | * this is on its own on exec(), but it will do it on exit(). Hence, to ensure we get a | |
ff3a7019 ZJS |
1877 | * summary here, fork() off a child, let it exit() cleanly, so that it prints the summary, |
1878 | * and wait() for it in the parent, before proceeding into the exec(). | |
3c7878f9 LP |
1879 | */ |
1880 | valgrind_summary_hack(); | |
1881 | ||
846f1da4 | 1882 | args[0] = SYSTEMD_BINARY_PATH; |
3c7878f9 | 1883 | (void) execv(args[0], (char* const*) args); |
1e3eee8c ZJS |
1884 | |
1885 | if (objective == MANAGER_REEXECUTE) { | |
1886 | *ret_error_message = "Failed to execute our own binary"; | |
1887 | return log_error_errno(errno, "Failed to execute our own binary %s: %m", args[0]); | |
1888 | } | |
1889 | ||
846f1da4 | 1890 | log_debug_errno(errno, "Failed to execute our own binary %s, trying fallback: %m", args[0]); |
3c7878f9 LP |
1891 | } |
1892 | ||
ff3a7019 ZJS |
1893 | /* Try the fallback, if there is any, without any serialization. We pass the original argv[] and |
1894 | * envp[]. (Well, modulo the ordering changes due to getopt() in argv[], and some cleanups in envp[], | |
1895 | * but let's hope that doesn't matter.) */ | |
3c7878f9 LP |
1896 | |
1897 | arg_serialization = safe_fclose(arg_serialization); | |
1898 | fds = fdset_free(fds); | |
1899 | ||
1900 | /* Reopen the console */ | |
1901 | (void) make_console_stdio(); | |
1902 | ||
846f1da4 ZJS |
1903 | i = 1; /* Leave args[0] empty for now. */ |
1904 | for (int j = 1; j <= argc; j++) | |
3c7878f9 | 1905 | args[i++] = argv[j]; |
3c7878f9 LP |
1906 | assert(i <= args_size); |
1907 | ||
55c041b4 | 1908 | /* Re-enable any blocked signals, especially important if we switch from initrd to init=... */ |
3c7878f9 LP |
1909 | (void) reset_all_signal_handlers(); |
1910 | (void) reset_signal_mask(); | |
595225af | 1911 | (void) rlimit_nofile_safe(); |
3c7878f9 LP |
1912 | |
1913 | if (switch_root_init) { | |
1914 | args[0] = switch_root_init; | |
a5cede8c | 1915 | (void) execve(args[0], (char* const*) args, saved_env); |
846f1da4 | 1916 | log_warning_errno(errno, "Failed to execute configured init %s, trying fallback: %m", args[0]); |
3c7878f9 LP |
1917 | } |
1918 | ||
1919 | args[0] = "/sbin/init"; | |
1920 | (void) execv(args[0], (char* const*) args); | |
1921 | r = -errno; | |
1922 | ||
1923 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
1924 | ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL, | |
1925 | "Failed to execute /sbin/init"); | |
1926 | ||
1e3eee8c | 1927 | *ret_error_message = "Failed to execute fallback shell"; |
3c7878f9 LP |
1928 | if (r == -ENOENT) { |
1929 | log_warning("No /sbin/init, trying fallback"); | |
1930 | ||
1931 | args[0] = "/bin/sh"; | |
1932 | args[1] = NULL; | |
a5cede8c | 1933 | (void) execve(args[0], (char* const*) args, saved_env); |
1e3eee8c | 1934 | return log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m"); |
3c7878f9 | 1935 | } else |
6b1fa539 | 1936 | return log_error_errno(r, "Failed to execute /sbin/init, giving up: %m"); |
3c7878f9 LP |
1937 | } |
1938 | ||
7eb35049 LP |
1939 | static int invoke_main_loop( |
1940 | Manager *m, | |
a9fd4cd1 FB |
1941 | const struct rlimit *saved_rlimit_nofile, |
1942 | const struct rlimit *saved_rlimit_memlock, | |
7eb35049 | 1943 | int *ret_retval, /* Return parameters relevant for shutting down */ |
7eb35049 LP |
1944 | FDSet **ret_fds, /* Return parameters for reexecuting */ |
1945 | char **ret_switch_root_dir, /* … */ | |
1946 | char **ret_switch_root_init, /* … */ | |
1947 | const char **ret_error_message) { | |
1948 | ||
1949 | int r; | |
1950 | ||
1951 | assert(m); | |
a9fd4cd1 FB |
1952 | assert(saved_rlimit_nofile); |
1953 | assert(saved_rlimit_memlock); | |
7eb35049 | 1954 | assert(ret_retval); |
7eb35049 LP |
1955 | assert(ret_fds); |
1956 | assert(ret_switch_root_dir); | |
1957 | assert(ret_switch_root_init); | |
1958 | assert(ret_error_message); | |
1959 | ||
1960 | for (;;) { | |
5409c6fc ZJS |
1961 | int objective = manager_loop(m); |
1962 | if (objective < 0) { | |
7eb35049 | 1963 | *ret_error_message = "Failed to run main loop"; |
ad5db940 OJ |
1964 | return log_struct_errno(LOG_EMERG, objective, |
1965 | LOG_MESSAGE("Failed to run main loop: %m"), | |
1966 | "MESSAGE_ID=" SD_MESSAGE_CORE_MAINLOOP_FAILED_STR); | |
7eb35049 LP |
1967 | } |
1968 | ||
5409c6fc | 1969 | switch (objective) { |
7eb35049 | 1970 | |
a6ecbf83 | 1971 | case MANAGER_RELOAD: { |
bda7d78b | 1972 | LogTarget saved_log_target; |
a6ecbf83 FB |
1973 | int saved_log_level; |
1974 | ||
dd0ab174 LP |
1975 | manager_send_reloading(m); |
1976 | ||
af2fb2f2 | 1977 | log_info("Reloading..."); |
7eb35049 | 1978 | |
ff3a7019 ZJS |
1979 | /* First, save any overridden log level/target, then parse the configuration file, |
1980 | * which might change the log level to new settings. */ | |
bda7d78b | 1981 | |
a6ecbf83 | 1982 | saved_log_level = m->log_level_overridden ? log_get_max_level() : -1; |
bda7d78b | 1983 | saved_log_target = m->log_target_overridden ? log_get_target() : _LOG_TARGET_INVALID; |
a6ecbf83 | 1984 | |
a9fd4cd1 | 1985 | (void) parse_configuration(saved_rlimit_nofile, saved_rlimit_memlock); |
7eb35049 LP |
1986 | |
1987 | set_manager_defaults(m); | |
986935cf | 1988 | set_manager_settings(m); |
7eb35049 | 1989 | |
61fbbac1 | 1990 | update_cpu_affinity(false); |
b070c7c0 | 1991 | update_numa_policy(false); |
61fbbac1 | 1992 | |
a6ecbf83 FB |
1993 | if (saved_log_level >= 0) |
1994 | manager_override_log_level(m, saved_log_level); | |
bda7d78b FB |
1995 | if (saved_log_target >= 0) |
1996 | manager_override_log_target(m, saved_log_target); | |
a6ecbf83 | 1997 | |
5409c6fc | 1998 | if (manager_reload(m) < 0) |
ff3a7019 ZJS |
1999 | /* Reloading failed before the point of no return. |
2000 | * Let's continue running as if nothing happened. */ | |
7a35fa24 | 2001 | m->objective = MANAGER_OK; |
af2fb2f2 LB |
2002 | else |
2003 | log_info("Reloading finished in " USEC_FMT " ms.", | |
2004 | usec_sub_unsigned(now(CLOCK_MONOTONIC), m->timestamps[MANAGER_TIMESTAMP_UNITS_LOAD].monotonic) / USEC_PER_MSEC); | |
7eb35049 | 2005 | |
5409c6fc | 2006 | continue; |
a6ecbf83 | 2007 | } |
7eb35049 LP |
2008 | |
2009 | case MANAGER_REEXECUTE: | |
dd0ab174 LP |
2010 | |
2011 | manager_send_reloading(m); /* From the perspective of the manager calling us this is | |
2012 | * pretty much the same as a reload */ | |
2013 | ||
7eb35049 LP |
2014 | r = prepare_reexecute(m, &arg_serialization, ret_fds, false); |
2015 | if (r < 0) { | |
2016 | *ret_error_message = "Failed to prepare for reexecution"; | |
2017 | return r; | |
2018 | } | |
2019 | ||
2020 | log_notice("Reexecuting."); | |
2021 | ||
7eb35049 | 2022 | *ret_retval = EXIT_SUCCESS; |
7eb35049 LP |
2023 | *ret_switch_root_dir = *ret_switch_root_init = NULL; |
2024 | ||
5409c6fc | 2025 | return objective; |
7eb35049 LP |
2026 | |
2027 | case MANAGER_SWITCH_ROOT: | |
dd0ab174 LP |
2028 | |
2029 | manager_send_reloading(m); /* From the perspective of the manager calling us this is | |
2030 | * pretty much the same as a reload */ | |
2031 | ||
d35fe8c0 FB |
2032 | manager_set_switching_root(m, true); |
2033 | ||
7eb35049 LP |
2034 | if (!m->switch_root_init) { |
2035 | r = prepare_reexecute(m, &arg_serialization, ret_fds, true); | |
2036 | if (r < 0) { | |
2037 | *ret_error_message = "Failed to prepare for reexecution"; | |
2038 | return r; | |
2039 | } | |
2040 | } else | |
2041 | *ret_fds = NULL; | |
2042 | ||
2043 | log_notice("Switching root."); | |
2044 | ||
7eb35049 | 2045 | *ret_retval = EXIT_SUCCESS; |
7eb35049 LP |
2046 | |
2047 | /* Steal the switch root parameters */ | |
49052946 YW |
2048 | *ret_switch_root_dir = TAKE_PTR(m->switch_root); |
2049 | *ret_switch_root_init = TAKE_PTR(m->switch_root_init); | |
7eb35049 | 2050 | |
5409c6fc | 2051 | return objective; |
7eb35049 | 2052 | |
13ffc607 LP |
2053 | case MANAGER_SOFT_REBOOT: |
2054 | manager_send_reloading(m); | |
2055 | manager_set_switching_root(m, true); | |
2056 | ||
2057 | r = prepare_reexecute(m, &arg_serialization, ret_fds, /* switching_root= */ true); | |
2058 | if (r < 0) { | |
2059 | *ret_error_message = "Failed to prepare for reexecution"; | |
2060 | return r; | |
2061 | } | |
2062 | ||
2063 | log_notice("Soft-rebooting."); | |
2064 | ||
2065 | *ret_retval = EXIT_SUCCESS; | |
2066 | *ret_switch_root_dir = TAKE_PTR(m->switch_root); | |
2067 | *ret_switch_root_init = NULL; | |
2068 | ||
2069 | return objective; | |
2070 | ||
7eb35049 | 2071 | case MANAGER_EXIT: |
7eb35049 LP |
2072 | if (MANAGER_IS_USER(m)) { |
2073 | log_debug("Exit."); | |
2074 | ||
7eb35049 | 2075 | *ret_retval = m->return_value; |
7eb35049 LP |
2076 | *ret_fds = NULL; |
2077 | *ret_switch_root_dir = *ret_switch_root_init = NULL; | |
2078 | ||
5409c6fc | 2079 | return objective; |
7eb35049 LP |
2080 | } |
2081 | ||
2082 | _fallthrough_; | |
2083 | case MANAGER_REBOOT: | |
2084 | case MANAGER_POWEROFF: | |
2085 | case MANAGER_HALT: | |
2086 | case MANAGER_KEXEC: { | |
7eb35049 LP |
2087 | log_notice("Shutting down."); |
2088 | ||
7eb35049 | 2089 | *ret_retval = m->return_value; |
7eb35049 LP |
2090 | *ret_fds = NULL; |
2091 | *ret_switch_root_dir = *ret_switch_root_init = NULL; | |
2092 | ||
5409c6fc | 2093 | return objective; |
7eb35049 LP |
2094 | } |
2095 | ||
2096 | default: | |
04499a70 | 2097 | assert_not_reached(); |
7eb35049 LP |
2098 | } |
2099 | } | |
2100 | } | |
2101 | ||
31aef7ff | 2102 | static void log_execution_mode(bool *ret_first_boot) { |
7cd43e34 | 2103 | bool first_boot = false; |
4870133b | 2104 | int r; |
7cd43e34 | 2105 | |
31aef7ff LP |
2106 | assert(ret_first_boot); |
2107 | ||
4870133b LP |
2108 | switch (arg_runtime_scope) { |
2109 | ||
2110 | case RUNTIME_SCOPE_SYSTEM: { | |
40efaaed | 2111 | struct utsname uts; |
31aef7ff LP |
2112 | int v; |
2113 | ||
e7b18106 | 2114 | log_info("systemd " GIT_VERSION " running in %ssystem mode (%s)", |
91b79ba8 ZJS |
2115 | arg_action == ACTION_TEST ? "test " : "", |
2116 | systemd_features); | |
31aef7ff LP |
2117 | |
2118 | v = detect_virtualization(); | |
2119 | if (v > 0) | |
2120 | log_info("Detected virtualization %s.", virtualization_to_string(v)); | |
2121 | ||
024469dd DB |
2122 | v = detect_confidential_virtualization(); |
2123 | if (v > 0) | |
2124 | log_info("Detected confidential virtualization %s.", confidential_virtualization_to_string(v)); | |
2125 | ||
31aef7ff LP |
2126 | log_info("Detected architecture %s.", architecture_to_string(uname_architecture())); |
2127 | ||
7cd43e34 | 2128 | if (in_initrd()) |
55c041b4 | 2129 | log_info("Running in initrd."); |
7cd43e34 | 2130 | else { |
583cef3b HS |
2131 | _cleanup_free_ char *id_text = NULL; |
2132 | ||
7cd43e34 | 2133 | /* Let's check whether we are in first boot. First, check if an override was |
7c52d523 | 2134 | * specified on the kernel command line. If yes, we honour that. */ |
7cd43e34 | 2135 | |
3787934b | 2136 | r = proc_cmdline_get_bool("systemd.condition-first-boot", /* flags = */ 0, &first_boot); |
7cd43e34 | 2137 | if (r < 0) |
7c52d523 | 2138 | log_debug_errno(r, "Failed to parse systemd.condition-first-boot= kernel command line argument, ignoring: %m"); |
7cd43e34 ZJS |
2139 | |
2140 | if (r > 0) | |
2141 | log_full(first_boot ? LOG_INFO : LOG_DEBUG, | |
7c52d523 | 2142 | "Kernel command line argument says we are %s first boot.", |
7cd43e34 ZJS |
2143 | first_boot ? "in" : "not in"); |
2144 | else { | |
2145 | /* Second, perform autodetection. We use /etc/machine-id as flag file for | |
2146 | * this: If it is missing or contains the value "uninitialized", this is the | |
2147 | * first boot. In other cases, it is not. This allows container managers and | |
2148 | * installers to provision a couple of files in /etc but still permit the | |
2149 | * first-boot initialization to occur. If the container manager wants to | |
2150 | * provision the machine ID it should pass $container_uuid to PID 1. */ | |
2151 | ||
2152 | r = read_one_line_file("/etc/machine-id", &id_text); | |
2153 | if (r < 0 || streq(id_text, "uninitialized")) { | |
2154 | if (r < 0 && r != -ENOENT) | |
60e4b429 | 2155 | log_warning_errno(r, "Unexpected error while reading /etc/machine-id, assuming first boot: %m"); |
7cd43e34 ZJS |
2156 | |
2157 | first_boot = true; | |
2158 | log_info("Detected first boot."); | |
2159 | } else | |
2160 | log_debug("Detected initialized system, this is not the first boot."); | |
583cef3b | 2161 | } |
31aef7ff | 2162 | } |
40efaaed | 2163 | |
5180394b | 2164 | assert_se(uname(&uts) >= 0); |
40efaaed LP |
2165 | |
2166 | if (strverscmp_improved(uts.release, KERNEL_BASELINE_VERSION) < 0) | |
2167 | log_warning("Warning! Reported kernel version %s is older than systemd's required baseline kernel version %s. " | |
2168 | "Your mileage may vary.", uts.release, KERNEL_BASELINE_VERSION); | |
2169 | else | |
2170 | log_debug("Kernel version %s, our baseline is %s", uts.release, KERNEL_BASELINE_VERSION); | |
4870133b LP |
2171 | |
2172 | break; | |
2173 | } | |
2174 | ||
2175 | case RUNTIME_SCOPE_USER: | |
b9e90f3a | 2176 | if (DEBUG_LOGGING) { |
c2b2df60 | 2177 | _cleanup_free_ char *t = NULL; |
31aef7ff | 2178 | |
b9e90f3a | 2179 | t = uid_to_name(getuid()); |
91b79ba8 ZJS |
2180 | log_debug("systemd " GIT_VERSION " running in %suser mode for user " UID_FMT "/%s. (%s)", |
2181 | arg_action == ACTION_TEST ? " test" : "", | |
2182 | getuid(), strna(t), systemd_features); | |
b9e90f3a | 2183 | } |
4870133b LP |
2184 | |
2185 | break; | |
2186 | ||
2187 | default: | |
2188 | assert_not_reached(); | |
31aef7ff | 2189 | } |
7cd43e34 ZJS |
2190 | |
2191 | *ret_first_boot = first_boot; | |
31aef7ff LP |
2192 | } |
2193 | ||
5afbaa36 LP |
2194 | static int initialize_runtime( |
2195 | bool skip_setup, | |
3023f2fe | 2196 | bool first_boot, |
5afbaa36 LP |
2197 | struct rlimit *saved_rlimit_nofile, |
2198 | struct rlimit *saved_rlimit_memlock, | |
2199 | const char **ret_error_message) { | |
5afbaa36 LP |
2200 | int r; |
2201 | ||
2202 | assert(ret_error_message); | |
2203 | ||
2204 | /* Sets up various runtime parameters. Many of these initializations are conditionalized: | |
2205 | * | |
2206 | * - Some only apply to --system instances | |
2207 | * - Some only apply to --user instances | |
2208 | * - Some only apply when we first start up, but not when we reexecute | |
2209 | */ | |
2210 | ||
2d776038 LP |
2211 | if (arg_action != ACTION_RUN) |
2212 | return 0; | |
2213 | ||
61fbbac1 | 2214 | update_cpu_affinity(skip_setup); |
b070c7c0 | 2215 | update_numa_policy(skip_setup); |
61fbbac1 | 2216 | |
4870133b LP |
2217 | switch (arg_runtime_scope) { |
2218 | ||
2219 | case RUNTIME_SCOPE_SYSTEM: | |
5238e957 | 2220 | /* Make sure we leave a core dump without panicking the kernel. */ |
3c3c6cb9 | 2221 | install_crash_handler(); |
5afbaa36 | 2222 | |
3c3c6cb9 | 2223 | if (!skip_setup) { |
143fadf3 | 2224 | r = mount_cgroup_controllers(); |
3c3c6cb9 LP |
2225 | if (r < 0) { |
2226 | *ret_error_message = "Failed to mount cgroup hierarchies"; | |
2227 | return r; | |
2228 | } | |
2229 | ||
deb0d489 LP |
2230 | /* Pull credentials from various sources into a common credential directory (we do |
2231 | * this here, before setting up the machine ID, so that we can use credential info | |
2232 | * for setting up the machine ID) */ | |
2233 | (void) import_credentials(); | |
2234 | ||
4bd03515 | 2235 | (void) os_release_status(); |
b6fad306 | 2236 | (void) hostname_setup(true); |
3023f2fe | 2237 | /* Force transient machine-id on first boot. */ |
deb0d489 | 2238 | machine_id_setup(/* root= */ NULL, /* force_transient= */ first_boot, arg_machine_id, /* ret_machine_id */ NULL); |
df883de9 | 2239 | (void) loopback_setup(); |
3c3c6cb9 | 2240 | bump_unix_max_dgram_qlen(); |
a8b627aa | 2241 | bump_file_max_and_nr_open(); |
3c3c6cb9 LP |
2242 | test_usr(); |
2243 | write_container_id(); | |
3f37a825 LB |
2244 | |
2245 | /* Copy os-release to the propagate directory, so that we update it for services running | |
2246 | * under RootDirectory=/RootImage= when we do a soft reboot. */ | |
2247 | r = setup_os_release(RUNTIME_SCOPE_SYSTEM); | |
2248 | if (r < 0) | |
2249 | log_warning_errno(r, "Failed to copy os-release for propagation, ignoring: %m"); | |
3c3c6cb9 | 2250 | } |
8a2c1fbf | 2251 | |
82d7a151 YW |
2252 | r = watchdog_set_device(arg_watchdog_device); |
2253 | if (r < 0) | |
2254 | log_warning_errno(r, "Failed to set watchdog device to %s, ignoring: %m", arg_watchdog_device); | |
4870133b LP |
2255 | |
2256 | break; | |
2257 | ||
2258 | case RUNTIME_SCOPE_USER: { | |
32429805 LP |
2259 | _cleanup_free_ char *p = NULL; |
2260 | ||
2261 | /* Create the runtime directory and place the inaccessible device nodes there, if we run in | |
2262 | * user mode. In system mode mount_setup() already did that. */ | |
2263 | ||
2264 | r = xdg_user_runtime_dir(&p, "/systemd"); | |
2265 | if (r < 0) { | |
2266 | *ret_error_message = "$XDG_RUNTIME_DIR is not set"; | |
ad5db940 OJ |
2267 | return log_struct_errno(LOG_EMERG, r, |
2268 | LOG_MESSAGE("Failed to determine $XDG_RUNTIME_DIR path: %m"), | |
2269 | "MESSAGE_ID=" SD_MESSAGE_CORE_NO_XDGDIR_PATH_STR); | |
32429805 LP |
2270 | } |
2271 | ||
e813a74a | 2272 | (void) mkdir_p_label(p, 0755); |
32429805 | 2273 | (void) make_inaccessible_nodes(p, UID_INVALID, GID_INVALID); |
3f37a825 LB |
2274 | r = setup_os_release(RUNTIME_SCOPE_USER); |
2275 | if (r < 0) | |
2276 | log_warning_errno(r, "Failed to copy os-release for propagation, ignoring: %m"); | |
4870133b LP |
2277 | break; |
2278 | } | |
2279 | ||
2280 | default: | |
2281 | assert_not_reached(); | |
3c3c6cb9 | 2282 | } |
5afbaa36 LP |
2283 | |
2284 | if (arg_timer_slack_nsec != NSEC_INFINITY) | |
2285 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) | |
3a671cd1 | 2286 | log_warning_errno(errno, "Failed to adjust timer slack, ignoring: %m"); |
5afbaa36 | 2287 | |
4870133b | 2288 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM) { |
5afbaa36 | 2289 | |
4870133b LP |
2290 | if (!cap_test_all(arg_capability_bounding_set)) { |
2291 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set); | |
2292 | if (r < 0) { | |
2293 | *ret_error_message = "Failed to drop capability bounding set of usermode helpers"; | |
ad5db940 OJ |
2294 | return log_struct_errno(LOG_EMERG, r, |
2295 | LOG_MESSAGE("Failed to drop capability bounding set of usermode helpers: %m"), | |
2296 | "MESSAGE_ID=" SD_MESSAGE_CORE_CAPABILITY_BOUNDING_USER_STR); | |
4870133b LP |
2297 | } |
2298 | ||
2299 | r = capability_bounding_set_drop(arg_capability_bounding_set, true); | |
2300 | if (r < 0) { | |
2301 | *ret_error_message = "Failed to drop capability bounding set"; | |
ad5db940 OJ |
2302 | return log_struct_errno(LOG_EMERG, r, |
2303 | LOG_MESSAGE("Failed to drop capability bounding set: %m"), | |
2304 | "MESSAGE_ID=" SD_MESSAGE_CORE_CAPABILITY_BOUNDING_STR); | |
4870133b | 2305 | } |
5afbaa36 | 2306 | } |
5afbaa36 | 2307 | |
4870133b LP |
2308 | if (arg_no_new_privs) { |
2309 | if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) < 0) { | |
2310 | *ret_error_message = "Failed to disable new privileges"; | |
ad5db940 OJ |
2311 | return log_struct_errno(LOG_EMERG, errno, |
2312 | LOG_MESSAGE("Failed to disable new privileges: %m"), | |
2313 | "MESSAGE_ID=" SD_MESSAGE_CORE_DISABLE_PRIVILEGES_STR); | |
4870133b | 2314 | } |
39362f6f JB |
2315 | } |
2316 | } | |
2317 | ||
5afbaa36 LP |
2318 | if (arg_syscall_archs) { |
2319 | r = enforce_syscall_archs(arg_syscall_archs); | |
2320 | if (r < 0) { | |
2321 | *ret_error_message = "Failed to set syscall architectures"; | |
2322 | return r; | |
2323 | } | |
2324 | } | |
2325 | ||
8c3fe1b5 LP |
2326 | r = make_reaper_process(true); |
2327 | if (r < 0) | |
2328 | log_warning_errno(r, "Failed to make us a subreaper, ignoring: %m"); | |
5afbaa36 | 2329 | |
a17c1712 LP |
2330 | /* Bump up RLIMIT_NOFILE for systemd itself */ |
2331 | (void) bump_rlimit_nofile(saved_rlimit_nofile); | |
2332 | (void) bump_rlimit_memlock(saved_rlimit_memlock); | |
5afbaa36 LP |
2333 | |
2334 | return 0; | |
2335 | } | |
2336 | ||
6acca5fc LP |
2337 | static int do_queue_default_job( |
2338 | Manager *m, | |
2339 | const char **ret_error_message) { | |
2340 | ||
2341 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
f1d075dc ZJS |
2342 | const char *unit; |
2343 | Job *job; | |
2344 | Unit *target; | |
6acca5fc LP |
2345 | int r; |
2346 | ||
8755dbad | 2347 | if (arg_default_unit) |
f1d075dc | 2348 | unit = arg_default_unit; |
8755dbad | 2349 | else if (in_initrd()) |
f1d075dc | 2350 | unit = SPECIAL_INITRD_TARGET; |
8755dbad | 2351 | else |
f1d075dc | 2352 | unit = SPECIAL_DEFAULT_TARGET; |
8755dbad | 2353 | |
f1d075dc | 2354 | log_debug("Activating default unit: %s", unit); |
8755dbad | 2355 | |
f1d075dc | 2356 | r = manager_load_startable_unit_or_warn(m, unit, NULL, &target); |
8755dbad ZJS |
2357 | if (r < 0 && in_initrd() && !arg_default_unit) { |
2358 | /* Fall back to default.target, which we used to always use by default. Only do this if no | |
2359 | * explicit configuration was given. */ | |
2360 | ||
2361 | log_info("Falling back to " SPECIAL_DEFAULT_TARGET "."); | |
6acca5fc | 2362 | |
8755dbad ZJS |
2363 | r = manager_load_startable_unit_or_warn(m, SPECIAL_DEFAULT_TARGET, NULL, &target); |
2364 | } | |
4109ede7 | 2365 | if (r < 0) { |
8755dbad | 2366 | log_info("Falling back to " SPECIAL_RESCUE_TARGET "."); |
6acca5fc | 2367 | |
4109ede7 | 2368 | r = manager_load_startable_unit_or_warn(m, SPECIAL_RESCUE_TARGET, NULL, &target); |
6acca5fc | 2369 | if (r < 0) { |
8755dbad ZJS |
2370 | *ret_error_message = r == -ERFKILL ? SPECIAL_RESCUE_TARGET " masked" |
2371 | : "Failed to load " SPECIAL_RESCUE_TARGET; | |
4109ede7 | 2372 | return r; |
6acca5fc LP |
2373 | } |
2374 | } | |
2375 | ||
2376 | assert(target->load_state == UNIT_LOADED); | |
2377 | ||
f1d075dc | 2378 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, NULL, &error, &job); |
6acca5fc LP |
2379 | if (r == -EPERM) { |
2380 | log_debug_errno(r, "Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); | |
2381 | ||
2382 | sd_bus_error_free(&error); | |
2383 | ||
f1d075dc | 2384 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, NULL, &error, &job); |
6acca5fc LP |
2385 | if (r < 0) { |
2386 | *ret_error_message = "Failed to start default target"; | |
ad5db940 OJ |
2387 | return log_struct_errno(LOG_EMERG, r, |
2388 | LOG_MESSAGE("Failed to start default target: %s", bus_error_message(&error, r)), | |
2389 | "MESSAGE_ID=" SD_MESSAGE_CORE_START_TARGET_FAILED_STR); | |
6acca5fc LP |
2390 | } |
2391 | ||
2392 | } else if (r < 0) { | |
2393 | *ret_error_message = "Failed to isolate default target"; | |
ad5db940 OJ |
2394 | return log_struct_errno(LOG_EMERG, r, |
2395 | LOG_MESSAGE("Failed to isolate default target: %s", bus_error_message(&error, r)), | |
2396 | "MESSAGE_ID=" SD_MESSAGE_CORE_ISOLATE_TARGET_FAILED_STR); | |
c86c31d9 ZJS |
2397 | } else |
2398 | log_info("Queued %s job for default target %s.", | |
2399 | job_type_to_string(job->type), | |
04d232d8 | 2400 | unit_status_string(job->unit, NULL)); |
6acca5fc | 2401 | |
f1d075dc | 2402 | m->default_unit_job_id = job->id; |
6acca5fc LP |
2403 | |
2404 | return 0; | |
2405 | } | |
2406 | ||
a9fd4cd1 FB |
2407 | static void save_rlimits(struct rlimit *saved_rlimit_nofile, |
2408 | struct rlimit *saved_rlimit_memlock) { | |
2409 | ||
2410 | assert(saved_rlimit_nofile); | |
2411 | assert(saved_rlimit_memlock); | |
2412 | ||
2413 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit_nofile) < 0) | |
2414 | log_warning_errno(errno, "Reading RLIMIT_NOFILE failed, ignoring: %m"); | |
2415 | ||
2416 | if (getrlimit(RLIMIT_MEMLOCK, saved_rlimit_memlock) < 0) | |
2417 | log_warning_errno(errno, "Reading RLIMIT_MEMLOCK failed, ignoring: %m"); | |
2418 | } | |
2419 | ||
2420 | static void fallback_rlimit_nofile(const struct rlimit *saved_rlimit_nofile) { | |
2421 | struct rlimit *rl; | |
2422 | ||
c9e120e0 | 2423 | if (arg_defaults.rlimit[RLIMIT_NOFILE]) |
a9fd4cd1 FB |
2424 | return; |
2425 | ||
2426 | /* Make sure forked processes get limits based on the original kernel setting */ | |
2427 | ||
2428 | rl = newdup(struct rlimit, saved_rlimit_nofile, 1); | |
2429 | if (!rl) { | |
2430 | log_oom(); | |
2431 | return; | |
2432 | } | |
2433 | ||
2434 | /* Bump the hard limit for system services to a substantially higher value. The default | |
2435 | * hard limit current kernels set is pretty low (4K), mostly for historical | |
2436 | * reasons. According to kernel developers, the fd handling in recent kernels has been | |
2437 | * optimized substantially enough, so that we can bump the limit now, without paying too | |
2438 | * high a price in memory or performance. Note however that we only bump the hard limit, | |
2439 | * not the soft limit. That's because select() works the way it works, and chokes on fds | |
2440 | * >= 1024. If we'd bump the soft limit globally, it might accidentally happen to | |
2441 | * unexpecting programs that they get fds higher than what they can process using | |
2442 | * select(). By only bumping the hard limit but leaving the low limit as it is we avoid | |
2443 | * this pitfall: programs that are written by folks aware of the select() problem in mind | |
2444 | * (and thus use poll()/epoll instead of select(), the way everybody should) can | |
2445 | * explicitly opt into high fds by bumping their soft limit beyond 1024, to the hard limit | |
2446 | * we pass. */ | |
4870133b | 2447 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM) { |
a9fd4cd1 FB |
2448 | int nr; |
2449 | ||
2450 | /* Get the underlying absolute limit the kernel enforces */ | |
2451 | nr = read_nr_open(); | |
2452 | ||
2453 | rl->rlim_max = MIN((rlim_t) nr, MAX(rl->rlim_max, (rlim_t) HIGH_RLIMIT_NOFILE)); | |
2454 | } | |
2455 | ||
2456 | /* If for some reason we were invoked with a soft limit above 1024 (which should never | |
2457 | * happen!, but who knows what we get passed in from pam_limit when invoked as --user | |
2458 | * instance), then lower what we pass on to not confuse our children */ | |
2459 | rl->rlim_cur = MIN(rl->rlim_cur, (rlim_t) FD_SETSIZE); | |
2460 | ||
c9e120e0 | 2461 | arg_defaults.rlimit[RLIMIT_NOFILE] = rl; |
a9fd4cd1 FB |
2462 | } |
2463 | ||
2464 | static void fallback_rlimit_memlock(const struct rlimit *saved_rlimit_memlock) { | |
2465 | struct rlimit *rl; | |
2466 | ||
2467 | /* Pass the original value down to invoked processes */ | |
2468 | ||
c9e120e0 | 2469 | if (arg_defaults.rlimit[RLIMIT_MEMLOCK]) |
a9fd4cd1 FB |
2470 | return; |
2471 | ||
2472 | rl = newdup(struct rlimit, saved_rlimit_memlock, 1); | |
2473 | if (!rl) { | |
2474 | log_oom(); | |
2475 | return; | |
2476 | } | |
2477 | ||
4870133b | 2478 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM) { |
852b6250 LP |
2479 | /* Raise the default limit to 8M also on old kernels and in containers (8M is the kernel |
2480 | * default for this since kernel 5.16) */ | |
2481 | rl->rlim_max = MAX(rl->rlim_max, (rlim_t) DEFAULT_RLIMIT_MEMLOCK); | |
2482 | rl->rlim_cur = MAX(rl->rlim_cur, (rlim_t) DEFAULT_RLIMIT_MEMLOCK); | |
2483 | } | |
2484 | ||
c9e120e0 | 2485 | arg_defaults.rlimit[RLIMIT_MEMLOCK] = rl; |
a9fd4cd1 FB |
2486 | } |
2487 | ||
d55ed7de | 2488 | static void setenv_manager_environment(void) { |
d55ed7de ZJS |
2489 | int r; |
2490 | ||
2491 | STRV_FOREACH(p, arg_manager_environment) { | |
2492 | log_debug("Setting '%s' in our own environment.", *p); | |
2493 | ||
2494 | r = putenv_dup(*p, true); | |
2495 | if (r < 0) | |
2496 | log_warning_errno(errno, "Failed to setenv \"%s\", ignoring: %m", *p); | |
2497 | } | |
2498 | } | |
2499 | ||
fb39af4c ZJS |
2500 | static void reset_arguments(void) { |
2501 | /* Frees/resets arg_* variables, with a few exceptions commented below. */ | |
970777b5 LP |
2502 | |
2503 | arg_default_unit = mfree(arg_default_unit); | |
fb39af4c | 2504 | |
4870133b | 2505 | /* arg_runtime_scope — ignore */ |
fb39af4c ZJS |
2506 | |
2507 | arg_dump_core = true; | |
2508 | arg_crash_chvt = -1; | |
2509 | arg_crash_shell = false; | |
2510 | arg_crash_reboot = false; | |
970777b5 | 2511 | arg_confirm_spawn = mfree(arg_confirm_spawn); |
fb39af4c | 2512 | arg_show_status = _SHOW_STATUS_INVALID; |
36cf4507 | 2513 | arg_status_unit_format = STATUS_UNIT_FORMAT_DEFAULT; |
fb39af4c ZJS |
2514 | arg_switched_root = false; |
2515 | arg_pager_flags = 0; | |
2516 | arg_service_watchdogs = true; | |
c9e120e0 LP |
2517 | |
2518 | unit_defaults_done(&arg_defaults); | |
ea09a416 | 2519 | unit_defaults_init(&arg_defaults, arg_runtime_scope); |
c9e120e0 | 2520 | |
fb39af4c | 2521 | arg_runtime_watchdog = 0; |
65224c1d | 2522 | arg_reboot_watchdog = 10 * USEC_PER_MINUTE; |
acafd7d8 | 2523 | arg_kexec_watchdog = 0; |
5717062e | 2524 | arg_pretimeout_watchdog = 0; |
919ea64f ŁS |
2525 | arg_early_core_pattern = mfree(arg_early_core_pattern); |
2526 | arg_watchdog_device = mfree(arg_watchdog_device); | |
aff3a9e1 | 2527 | arg_watchdog_pretimeout_governor = mfree(arg_watchdog_pretimeout_governor); |
fb39af4c | 2528 | |
970777b5 | 2529 | arg_default_environment = strv_free(arg_default_environment); |
d55ed7de | 2530 | arg_manager_environment = strv_free(arg_manager_environment); |
fb39af4c | 2531 | |
3fd5190b | 2532 | arg_capability_bounding_set = CAP_MASK_UNSET; |
fb39af4c ZJS |
2533 | arg_no_new_privs = false; |
2534 | arg_timer_slack_nsec = NSEC_INFINITY; | |
fb39af4c | 2535 | |
970777b5 | 2536 | arg_syscall_archs = set_free(arg_syscall_archs); |
61fbbac1 | 2537 | |
fb39af4c ZJS |
2538 | /* arg_serialization — ignore */ |
2539 | ||
fb39af4c ZJS |
2540 | arg_machine_id = (sd_id128_t) {}; |
2541 | arg_cad_burst_action = EMERGENCY_ACTION_REBOOT_FORCE; | |
fb39af4c | 2542 | |
61fbbac1 | 2543 | cpu_set_reset(&arg_cpu_affinity); |
b070c7c0 | 2544 | numa_policy_reset(&arg_numa_policy); |
d247f232 LP |
2545 | |
2546 | arg_random_seed = mfree(arg_random_seed); | |
2547 | arg_random_seed_size = 0; | |
33d943d1 | 2548 | arg_clock_usec = 0; |
d4a402e4 | 2549 | |
856bfaeb LB |
2550 | arg_reload_limit_interval_sec = 0; |
2551 | arg_reload_limit_burst = 0; | |
d4a402e4 LP |
2552 | } |
2553 | ||
2554 | static void determine_default_oom_score_adjust(void) { | |
2555 | int r, a, b; | |
2556 | ||
2557 | /* Run our services at slightly higher OOM score than ourselves. But let's be conservative here, and | |
2558 | * do this only if we don't run as root (i.e. only if we are run in user mode, for an unprivileged | |
2559 | * user). */ | |
2560 | ||
c9e120e0 | 2561 | if (arg_defaults.oom_score_adjust_set) |
d4a402e4 LP |
2562 | return; |
2563 | ||
2564 | if (getuid() == 0) | |
2565 | return; | |
2566 | ||
2567 | r = get_oom_score_adjust(&a); | |
2568 | if (r < 0) | |
2569 | return (void) log_warning_errno(r, "Failed to determine current OOM score adjustment value, ignoring: %m"); | |
2570 | ||
2571 | assert_cc(100 <= OOM_SCORE_ADJ_MAX); | |
2572 | b = a >= OOM_SCORE_ADJ_MAX - 100 ? OOM_SCORE_ADJ_MAX : a + 100; | |
2573 | ||
2574 | if (a == b) | |
2575 | return; | |
2576 | ||
c9e120e0 LP |
2577 | arg_defaults.oom_score_adjust = b; |
2578 | arg_defaults.oom_score_adjust_set = true; | |
970777b5 LP |
2579 | } |
2580 | ||
a9fd4cd1 FB |
2581 | static int parse_configuration(const struct rlimit *saved_rlimit_nofile, |
2582 | const struct rlimit *saved_rlimit_memlock) { | |
97d1fb94 LP |
2583 | int r; |
2584 | ||
a9fd4cd1 FB |
2585 | assert(saved_rlimit_nofile); |
2586 | assert(saved_rlimit_memlock); | |
2587 | ||
fb39af4c ZJS |
2588 | /* Assign configuration defaults */ |
2589 | reset_arguments(); | |
2590 | ||
97d1fb94 | 2591 | r = parse_config_file(); |
470a5e6d ZJS |
2592 | if (r < 0) |
2593 | log_warning_errno(r, "Failed to parse config file, ignoring: %m"); | |
97d1fb94 | 2594 | |
4870133b | 2595 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM) { |
97d1fb94 LP |
2596 | r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, 0); |
2597 | if (r < 0) | |
2598 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); | |
2599 | } | |
2600 | ||
a9fd4cd1 FB |
2601 | /* Initialize some default rlimits for services if they haven't been configured */ |
2602 | fallback_rlimit_nofile(saved_rlimit_nofile); | |
2603 | fallback_rlimit_memlock(saved_rlimit_memlock); | |
2604 | ||
97d1fb94 LP |
2605 | /* Note that this also parses bits from the kernel command line, including "debug". */ |
2606 | log_parse_environment(); | |
2607 | ||
db33214b | 2608 | /* Initialize the show status setting if it hasn't been set explicitly yet */ |
7a293242 | 2609 | if (arg_show_status == _SHOW_STATUS_INVALID) |
db33214b LP |
2610 | arg_show_status = SHOW_STATUS_YES; |
2611 | ||
d4a402e4 LP |
2612 | /* Slightly raise the OOM score for our services if we are running for unprivileged users. */ |
2613 | determine_default_oom_score_adjust(); | |
2614 | ||
d55ed7de ZJS |
2615 | /* Push variables into the manager environment block */ |
2616 | setenv_manager_environment(); | |
2617 | ||
a4303b40 DDM |
2618 | /* Parse log environment variables again to take into account any new environment variables. */ |
2619 | log_parse_environment(); | |
2620 | ||
97d1fb94 LP |
2621 | return 0; |
2622 | } | |
2623 | ||
b0d7c989 LP |
2624 | static int safety_checks(void) { |
2625 | ||
febf46a4 | 2626 | if (getpid_cached() == 1 && |
baaa35ad ZJS |
2627 | arg_action != ACTION_RUN) |
2628 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), | |
2629 | "Unsupported execution mode while PID 1."); | |
febf46a4 LP |
2630 | |
2631 | if (getpid_cached() == 1 && | |
4870133b | 2632 | arg_runtime_scope == RUNTIME_SCOPE_USER) |
baaa35ad ZJS |
2633 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), |
2634 | "Can't run --user mode as PID 1."); | |
febf46a4 LP |
2635 | |
2636 | if (arg_action == ACTION_RUN && | |
4870133b | 2637 | arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && |
baaa35ad ZJS |
2638 | getpid_cached() != 1) |
2639 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), | |
2640 | "Can't run system mode unless PID 1."); | |
febf46a4 | 2641 | |
b0d7c989 | 2642 | if (arg_action == ACTION_TEST && |
baaa35ad ZJS |
2643 | geteuid() == 0) |
2644 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), | |
2645 | "Don't run test mode as root."); | |
b0d7c989 | 2646 | |
4870133b LP |
2647 | switch (arg_runtime_scope) { |
2648 | ||
2649 | case RUNTIME_SCOPE_USER: | |
2650 | ||
2651 | if (arg_action == ACTION_RUN && | |
2652 | sd_booted() <= 0) | |
2653 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
2654 | "Trying to run as user instance, but the system has not been booted with systemd."); | |
2655 | ||
2656 | if (arg_action == ACTION_RUN && | |
2657 | !getenv("XDG_RUNTIME_DIR")) | |
2658 | return log_error_errno(SYNTHETIC_ERRNO(EUNATCH), | |
2659 | "Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
2660 | ||
2661 | break; | |
b0d7c989 | 2662 | |
4870133b LP |
2663 | case RUNTIME_SCOPE_SYSTEM: |
2664 | if (arg_action == ACTION_RUN && | |
2665 | running_in_chroot() > 0) | |
2666 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
2667 | "Cannot be run in a chroot() environment."); | |
2668 | break; | |
b0d7c989 | 2669 | |
4870133b LP |
2670 | default: |
2671 | assert_not_reached(); | |
2672 | } | |
b0d7c989 LP |
2673 | |
2674 | return 0; | |
2675 | } | |
2676 | ||
74da609f LP |
2677 | static int initialize_security( |
2678 | bool *loaded_policy, | |
2679 | dual_timestamp *security_start_timestamp, | |
2680 | dual_timestamp *security_finish_timestamp, | |
2681 | const char **ret_error_message) { | |
2682 | ||
2683 | int r; | |
2684 | ||
2685 | assert(loaded_policy); | |
2686 | assert(security_start_timestamp); | |
2687 | assert(security_finish_timestamp); | |
2688 | assert(ret_error_message); | |
2689 | ||
2690 | dual_timestamp_get(security_start_timestamp); | |
2691 | ||
97149f40 | 2692 | r = mac_selinux_setup(loaded_policy); |
74da609f LP |
2693 | if (r < 0) { |
2694 | *ret_error_message = "Failed to load SELinux policy"; | |
2695 | return r; | |
2696 | } | |
2697 | ||
2698 | r = mac_smack_setup(loaded_policy); | |
2699 | if (r < 0) { | |
2700 | *ret_error_message = "Failed to load SMACK policy"; | |
2701 | return r; | |
2702 | } | |
2703 | ||
2ffadd3c Y |
2704 | r = mac_apparmor_setup(); |
2705 | if (r < 0) { | |
2706 | *ret_error_message = "Failed to load AppArmor policy"; | |
2707 | return r; | |
2708 | } | |
2709 | ||
74da609f LP |
2710 | r = ima_setup(); |
2711 | if (r < 0) { | |
2712 | *ret_error_message = "Failed to load IMA policy"; | |
2713 | return r; | |
2714 | } | |
2715 | ||
2716 | dual_timestamp_get(security_finish_timestamp); | |
2717 | return 0; | |
2718 | } | |
2719 | ||
efeb853f LP |
2720 | static int collect_fds(FDSet **ret_fds, const char **ret_error_message) { |
2721 | int r; | |
2722 | ||
2723 | assert(ret_fds); | |
2724 | assert(ret_error_message); | |
2725 | ||
a3dff21a LP |
2726 | /* Pick up all fds passed to us. We apply a filter here: we only take the fds that have O_CLOEXEC |
2727 | * off. All fds passed via execve() to us must have O_CLOEXEC off, and our own code and dependencies | |
2728 | * should be clean enough to set O_CLOEXEC universally. Thus checking the bit should be a safe | |
2729 | * mechanism to distinguish passed in fds from our own. | |
2730 | * | |
2731 | * Why bother? Some subsystems we initialize early, specifically selinux might keep fds open in our | |
2732 | * process behind our back. We should not take possession of that (and then accidentally close | |
2733 | * it). SELinux thankfully sets O_CLOEXEC on its fds, so this test should work. */ | |
2734 | r = fdset_new_fill(/* filter_cloexec= */ 0, ret_fds); | |
efeb853f LP |
2735 | if (r < 0) { |
2736 | *ret_error_message = "Failed to allocate fd set"; | |
ad5db940 OJ |
2737 | return log_struct_errno(LOG_EMERG, r, |
2738 | LOG_MESSAGE("Failed to allocate fd set: %m"), | |
2739 | "MESSAGE_ID=" SD_MESSAGE_CORE_FD_SET_FAILED_STR); | |
efeb853f LP |
2740 | } |
2741 | ||
a3dff21a | 2742 | (void) fdset_cloexec(*ret_fds, true); |
efeb853f | 2743 | |
a3dff21a LP |
2744 | /* The serialization fd should have O_CLOEXEC turned on already, let's verify that we didn't pick it up here */ |
2745 | assert_se(!arg_serialization || !fdset_contains(*ret_fds, fileno(arg_serialization))); | |
efeb853f LP |
2746 | |
2747 | return 0; | |
2748 | } | |
2749 | ||
2e51b31c LP |
2750 | static void setup_console_terminal(bool skip_setup) { |
2751 | ||
4870133b | 2752 | if (arg_runtime_scope != RUNTIME_SCOPE_SYSTEM) |
2e51b31c LP |
2753 | return; |
2754 | ||
2755 | /* Become a session leader if we aren't one yet. */ | |
2756 | (void) setsid(); | |
2757 | ||
ff3a7019 ZJS |
2758 | /* If we are init, we connect stdin/stdout/stderr to /dev/null and make sure we don't have a |
2759 | * controlling tty. */ | |
2e51b31c LP |
2760 | (void) release_terminal(); |
2761 | ||
2762 | /* Reset the console, but only if this is really init and we are freshly booted */ | |
2763 | if (getpid_cached() == 1 && !skip_setup) | |
2764 | (void) console_setup(); | |
2765 | } | |
2766 | ||
aa40ff07 LP |
2767 | static bool early_skip_setup_check(int argc, char *argv[]) { |
2768 | bool found_deserialize = false; | |
aa40ff07 | 2769 | |
ff3a7019 ZJS |
2770 | /* Determine if this is a reexecution or normal bootup. We do the full command line parsing much |
2771 | * later, so let's just have a quick peek here. Note that if we have switched root, do all the | |
2772 | * special setup things anyway, even if in that case we also do deserialization. */ | |
aa40ff07 | 2773 | |
431733b8 | 2774 | for (int i = 1; i < argc; i++) |
aa40ff07 LP |
2775 | if (streq(argv[i], "--switched-root")) |
2776 | return false; /* If we switched root, don't skip the setup. */ | |
09567df7 | 2777 | else if (startswith(argv[i], "--deserialize=") || streq(argv[i], "--deserialize")) |
aa40ff07 | 2778 | found_deserialize = true; |
aa40ff07 LP |
2779 | |
2780 | return found_deserialize; /* When we are deserializing, then we are reexecuting, hence avoid the extensive setup */ | |
2781 | } | |
2782 | ||
0e06a031 LP |
2783 | static int save_env(void) { |
2784 | char **l; | |
2785 | ||
2786 | l = strv_copy(environ); | |
2787 | if (!l) | |
2788 | return -ENOMEM; | |
2789 | ||
2790 | strv_free_and_replace(saved_env, l); | |
2791 | return 0; | |
2792 | } | |
2793 | ||
60918275 | 2794 | int main(int argc, char *argv[]) { |
5409c6fc ZJS |
2795 | dual_timestamp |
2796 | initrd_timestamp = DUAL_TIMESTAMP_NULL, | |
2797 | userspace_timestamp = DUAL_TIMESTAMP_NULL, | |
2798 | kernel_timestamp = DUAL_TIMESTAMP_NULL, | |
2799 | security_start_timestamp = DUAL_TIMESTAMP_NULL, | |
2800 | security_finish_timestamp = DUAL_TIMESTAMP_NULL; | |
ddfa8b0b LP |
2801 | struct rlimit saved_rlimit_nofile = RLIMIT_MAKE_CONST(0), |
2802 | saved_rlimit_memlock = RLIMIT_MAKE_CONST(RLIM_INFINITY); /* The original rlimits we passed | |
2803 | * in. Note we use different values | |
2804 | * for the two that indicate whether | |
2805 | * these fields are initialized! */ | |
5409c6fc | 2806 | bool skip_setup, loaded_policy = false, queue_default_job = false, first_boot = false; |
625e8690 | 2807 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
9d76d730 | 2808 | usec_t before_startup, after_startup; |
625e8690 | 2809 | static char systemd[] = "systemd"; |
b22d392d | 2810 | const char *error_message = NULL; |
625e8690 LP |
2811 | int r, retval = EXIT_FAILURE; |
2812 | Manager *m = NULL; | |
a16e1123 | 2813 | FDSet *fds = NULL; |
27b14a22 | 2814 | |
61b9769b | 2815 | assert_se(argc > 0 && !isempty(argv[0])); |
cf3095ac | 2816 | |
d72a8f10 | 2817 | /* SysV compatibility: redirect init → telinit */ |
6808a0bc | 2818 | redirect_telinit(argc, argv); |
2cb1a60d | 2819 | |
d72a8f10 | 2820 | /* Take timestamps early on */ |
c3a170f3 HH |
2821 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
2822 | dual_timestamp_get(&userspace_timestamp); | |
2823 | ||
d72a8f10 | 2824 | /* Figure out whether we need to do initialize the system, or if we already did that because we are |
ff3a7019 | 2825 | * reexecuting. */ |
aa40ff07 | 2826 | skip_setup = early_skip_setup_check(argc, argv); |
d03bc1b8 | 2827 | |
ff3a7019 ZJS |
2828 | /* If we get started via the /sbin/init symlink then we are called 'init'. After a subsequent |
2829 | * reexecution we are then called 'systemd'. That is confusing, hence let's call us systemd | |
2830 | * right-away. */ | |
f3b6a3ed | 2831 | program_invocation_short_name = systemd; |
eee8b7ab | 2832 | (void) prctl(PR_SET_NAME, systemd); |
5d6b1584 | 2833 | |
d72a8f10 | 2834 | /* Save the original command line */ |
36fea155 | 2835 | save_argc_argv(argc, argv); |
f3b6a3ed | 2836 | |
0e06a031 LP |
2837 | /* Save the original environment as we might need to restore it if we're requested to execute another |
2838 | * system manager later. */ | |
2839 | r = save_env(); | |
2840 | if (r < 0) { | |
2841 | error_message = "Failed to copy environment block"; | |
2842 | goto finish; | |
2843 | } | |
a5cede8c | 2844 | |
6fdb8de4 | 2845 | /* Make sure that if the user says "syslog" we actually log to the journal. */ |
c1dc6153 | 2846 | log_set_upgrade_syslog_to_journal(true); |
bbe63281 | 2847 | |
df0ff127 | 2848 | if (getpid_cached() == 1) { |
b5752d23 | 2849 | /* When we run as PID 1 force system mode */ |
4870133b | 2850 | arg_runtime_scope = RUNTIME_SCOPE_SYSTEM; |
b5752d23 | 2851 | |
48a601fe | 2852 | /* Disable the umask logic */ |
90dc8c2e MG |
2853 | umask(0); |
2854 | ||
ff3a7019 ZJS |
2855 | /* Make sure that at least initially we do not ever log to journald/syslogd, because it might |
2856 | * not be activated yet (even though the log socket for it exists). */ | |
d075092f LP |
2857 | log_set_prohibit_ipc(true); |
2858 | ||
ff3a7019 ZJS |
2859 | /* Always reopen /dev/console when running as PID 1 or one of its pre-execve() children. This |
2860 | * is important so that we never end up logging to any foreign stderr, for example if we have | |
2861 | * to log in a child process right before execve()'ing the actual binary, at a point in time | |
2862 | * where socket activation stderr/stdout area already set up. */ | |
48a601fe | 2863 | log_set_always_reopen_console(true); |
48a601fe | 2864 | |
92890452 | 2865 | if (detect_container() <= 0) { |
4f8d551f | 2866 | |
92890452 | 2867 | /* Running outside of a container as PID 1 */ |
1e344c1d | 2868 | log_set_target_and_open(LOG_TARGET_KMSG); |
a866073d | 2869 | |
92890452 LP |
2870 | if (in_initrd()) |
2871 | initrd_timestamp = userspace_timestamp; | |
c3ba6250 | 2872 | |
92890452 LP |
2873 | if (!skip_setup) { |
2874 | r = mount_setup_early(); | |
2875 | if (r < 0) { | |
2876 | error_message = "Failed to mount early API filesystems"; | |
2877 | goto finish; | |
2878 | } | |
d2f57745 DDM |
2879 | } |
2880 | ||
2881 | /* We might have just mounted /proc, so let's try to parse the kernel | |
2882 | * command line log arguments immediately. */ | |
2883 | log_parse_environment(); | |
92890452 | 2884 | |
d2f57745 DDM |
2885 | /* Let's open the log backend a second time, in case the first time didn't |
2886 | * work. Quite possibly we have mounted /dev just now, so /dev/kmsg became | |
2887 | * available, and it previously wasn't. */ | |
2888 | log_open(); | |
0a2eef1e | 2889 | |
d2f57745 | 2890 | if (!skip_setup) { |
6123dfaa ZJS |
2891 | disable_printk_ratelimit(); |
2892 | ||
92890452 LP |
2893 | r = initialize_security( |
2894 | &loaded_policy, | |
2895 | &security_start_timestamp, | |
2896 | &security_finish_timestamp, | |
2897 | &error_message); | |
2898 | if (r < 0) | |
2899 | goto finish; | |
d723cd65 | 2900 | } |
eee8b7ab | 2901 | |
a452c807 DDM |
2902 | if (mac_init() < 0) { |
2903 | error_message = "Failed to initialize MAC support"; | |
96694e99 | 2904 | goto finish; |
92890452 | 2905 | } |
0b3325e7 | 2906 | |
92890452 LP |
2907 | if (!skip_setup) |
2908 | initialize_clock(); | |
2909 | ||
ff3a7019 ZJS |
2910 | /* Set the default for later on, but don't actually open the logs like this for |
2911 | * now. Note that if we are transitioning from the initrd there might still be | |
2912 | * journal fd open, and we shouldn't attempt opening that before we parsed | |
2913 | * /proc/cmdline which might redirect output elsewhere. */ | |
92890452 LP |
2914 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); |
2915 | ||
2916 | } else { | |
2917 | /* Running inside a container, as PID 1 */ | |
1e344c1d | 2918 | log_set_target_and_open(LOG_TARGET_CONSOLE); |
92890452 LP |
2919 | |
2920 | /* For later on, see above... */ | |
2921 | log_set_target(LOG_TARGET_JOURNAL); | |
2922 | ||
45250e66 | 2923 | /* clear the kernel timestamp, because we are in a container */ |
92890452 | 2924 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
cb6531be | 2925 | } |
7948c4df | 2926 | |
92890452 | 2927 | initialize_coredump(skip_setup); |
a866073d | 2928 | |
92890452 LP |
2929 | r = fixup_environment(); |
2930 | if (r < 0) { | |
ad5db940 OJ |
2931 | log_struct_errno(LOG_EMERG, r, |
2932 | LOG_MESSAGE("Failed to fix up PID 1 environment: %m"), | |
2933 | "MESSAGE_ID=" SD_MESSAGE_CORE_PID1_ENVIRONMENT_STR); | |
92890452 LP |
2934 | error_message = "Failed to fix up PID1 environment"; |
2935 | goto finish; | |
2936 | } | |
a866073d | 2937 | |
ff3a7019 ZJS |
2938 | /* Try to figure out if we can use colors with the console. No need to do that for user |
2939 | * instances since they never log into the console. */ | |
3a18b604 | 2940 | log_show_color(colors_enabled()); |
92890452 | 2941 | |
c76cf844 AK |
2942 | r = make_null_stdio(); |
2943 | if (r < 0) | |
92890452 | 2944 | log_warning_errno(r, "Failed to redirect standard streams to /dev/null, ignoring: %m"); |
f84f9974 | 2945 | |
a132bef0 | 2946 | /* Load the kernel modules early. */ |
2e75e2a8 | 2947 | if (!skip_setup) |
e921a00d | 2948 | (void) kmod_setup(); |
2e75e2a8 | 2949 | |
3196e423 | 2950 | /* Mount /proc, /sys and friends, so that /proc/cmdline and /proc/$PID/fd is available. */ |
f74349d8 | 2951 | r = mount_setup(loaded_policy, skip_setup); |
cb6531be ZJS |
2952 | if (r < 0) { |
2953 | error_message = "Failed to mount API filesystems"; | |
8efe3c01 | 2954 | goto finish; |
cb6531be | 2955 | } |
c18ecf03 | 2956 | |
0be72218 JD |
2957 | /* The efivarfs is now mounted, let's lock down the system token. */ |
2958 | lock_down_efi_variables(); | |
209b2592 FB |
2959 | |
2960 | /* Cache command-line options passed from EFI variables */ | |
2961 | if (!skip_setup) | |
2962 | (void) cache_efi_options_variable(); | |
3196e423 LP |
2963 | } else { |
2964 | /* Running as user instance */ | |
4870133b | 2965 | arg_runtime_scope = RUNTIME_SCOPE_USER; |
2a646b1d | 2966 | log_set_always_reopen_console(true); |
1e344c1d | 2967 | log_set_target_and_open(LOG_TARGET_AUTO); |
3196e423 LP |
2968 | |
2969 | /* clear the kernel timestamp, because we are not PID 1 */ | |
2970 | kernel_timestamp = DUAL_TIMESTAMP_NULL; | |
2971 | ||
963b6b90 ŁS |
2972 | /* Clear ambient capabilities, so services do not inherit them implicitly. Dropping them does |
2973 | * not affect the permitted and effective sets which are important for the manager itself to | |
2974 | * operate. */ | |
2975 | capability_ambient_set_apply(0, /* also_inherit= */ false); | |
2976 | ||
a452c807 DDM |
2977 | if (mac_init() < 0) { |
2978 | error_message = "Failed to initialize MAC support"; | |
3196e423 LP |
2979 | goto finish; |
2980 | } | |
0c85a4f3 | 2981 | } |
4ade7963 | 2982 | |
a9fd4cd1 FB |
2983 | /* Save the original RLIMIT_NOFILE/RLIMIT_MEMLOCK so that we can reset it later when |
2984 | * transitioning from the initrd to the main systemd or suchlike. */ | |
2985 | save_rlimits(&saved_rlimit_nofile, &saved_rlimit_memlock); | |
2986 | ||
4ade7963 | 2987 | /* Reset all signal handlers. */ |
ce30c8dc | 2988 | (void) reset_all_signal_handlers(); |
9c274488 | 2989 | (void) ignore_signals(SIGNALS_IGNORE); |
078e4539 | 2990 | |
ffe5c01e FB |
2991 | (void) parse_configuration(&saved_rlimit_nofile, &saved_rlimit_memlock); |
2992 | ||
2993 | r = parse_argv(argc, argv); | |
2994 | if (r < 0) { | |
7c52d523 | 2995 | error_message = "Failed to parse command line arguments"; |
f170852a | 2996 | goto finish; |
ffe5c01e | 2997 | } |
10c961b9 | 2998 | |
b0d7c989 LP |
2999 | r = safety_checks(); |
3000 | if (r < 0) | |
fe783b03 | 3001 | goto finish; |
fe783b03 | 3002 | |
5c08257b | 3003 | if (IN_SET(arg_action, ACTION_TEST, ACTION_HELP, ACTION_DUMP_CONFIGURATION_ITEMS, ACTION_DUMP_BUS_PROPERTIES, ACTION_BUS_INTROSPECT)) |
384c2c32 | 3004 | pager_open(arg_pager_flags); |
b0d7c989 LP |
3005 | |
3006 | if (arg_action != ACTION_RUN) | |
74e7579c | 3007 | skip_setup = true; |
b87c2aa6 | 3008 | |
fa0f4d8a | 3009 | if (arg_action == ACTION_HELP) { |
37ec0fdd | 3010 | retval = help() < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
f170852a | 3011 | goto finish; |
9ba0bc4e ZJS |
3012 | } else if (arg_action == ACTION_VERSION) { |
3013 | retval = version(); | |
3014 | goto finish; | |
fa0f4d8a | 3015 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 3016 | unit_dump_config_items(stdout); |
22f4096c | 3017 | retval = EXIT_SUCCESS; |
e537352b | 3018 | goto finish; |
bbc1acab YW |
3019 | } else if (arg_action == ACTION_DUMP_BUS_PROPERTIES) { |
3020 | dump_bus_properties(stdout); | |
3021 | retval = EXIT_SUCCESS; | |
3022 | goto finish; | |
5c08257b ZJS |
3023 | } else if (arg_action == ACTION_BUS_INTROSPECT) { |
3024 | r = bus_manager_introspect_implementations(stdout, arg_bus_introspect); | |
3025 | retval = r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE; | |
3026 | goto finish; | |
f170852a LP |
3027 | } |
3028 | ||
4c701096 | 3029 | assert_se(IN_SET(arg_action, ACTION_RUN, ACTION_TEST)); |
f170852a | 3030 | |
5a2e0c62 LP |
3031 | /* Move out of the way, so that we won't block unmounts */ |
3032 | assert_se(chdir("/") == 0); | |
3033 | ||
dea374e8 | 3034 | if (arg_action == ACTION_RUN) { |
d247f232 LP |
3035 | if (!skip_setup) { |
3036 | /* Apply the systemd.clock_usec= kernel command line switch */ | |
45250e66 | 3037 | apply_clock_update(); |
a70c72a0 | 3038 | |
d247f232 LP |
3039 | /* Apply random seed from kernel command line */ |
3040 | cmdline_take_random_seed(); | |
3041 | } | |
3042 | ||
c6885f5f FB |
3043 | /* A core pattern might have been specified via the cmdline. */ |
3044 | initialize_core_pattern(skip_setup); | |
3045 | ||
efeb853f | 3046 | /* Close logging fds, in order not to confuse collecting passed fds and terminal logic below */ |
a70c72a0 LP |
3047 | log_close(); |
3048 | ||
3049 | /* Remember open file descriptors for later deserialization */ | |
efeb853f LP |
3050 | r = collect_fds(&fds, &error_message); |
3051 | if (r < 0) | |
dea374e8 | 3052 | goto finish; |
a16e1123 | 3053 | |
2e51b31c LP |
3054 | /* Give up any control of the console, but make sure its initialized. */ |
3055 | setup_console_terminal(skip_setup); | |
56d96fc0 | 3056 | |
a70c72a0 LP |
3057 | /* Open the logging devices, if possible and necessary */ |
3058 | log_open(); | |
56d96fc0 | 3059 | } |
4ade7963 | 3060 | |
31aef7ff | 3061 | log_execution_mode(&first_boot); |
a5dab5ce | 3062 | |
2d776038 | 3063 | r = initialize_runtime(skip_setup, |
3023f2fe | 3064 | first_boot, |
2d776038 LP |
3065 | &saved_rlimit_nofile, |
3066 | &saved_rlimit_memlock, | |
3067 | &error_message); | |
3068 | if (r < 0) | |
3069 | goto finish; | |
4096d6f5 | 3070 | |
4870133b | 3071 | r = manager_new(arg_runtime_scope, |
e0a3da1f ZJS |
3072 | arg_action == ACTION_TEST ? MANAGER_TEST_FULL : 0, |
3073 | &m); | |
e96d6be7 | 3074 | if (r < 0) { |
ad5db940 OJ |
3075 | log_struct_errno(LOG_EMERG, r, |
3076 | LOG_MESSAGE("Failed to allocate manager object: %m"), | |
3077 | "MESSAGE_ID=" SD_MESSAGE_CORE_MANAGER_ALLOCATE_STR); | |
cb6531be | 3078 | error_message = "Failed to allocate manager object"; |
60918275 LP |
3079 | goto finish; |
3080 | } | |
3081 | ||
9f9f0342 LP |
3082 | m->timestamps[MANAGER_TIMESTAMP_KERNEL] = kernel_timestamp; |
3083 | m->timestamps[MANAGER_TIMESTAMP_INITRD] = initrd_timestamp; | |
3084 | m->timestamps[MANAGER_TIMESTAMP_USERSPACE] = userspace_timestamp; | |
d4ee7bd8 YW |
3085 | m->timestamps[manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_SECURITY_START)] = security_start_timestamp; |
3086 | m->timestamps[manager_timestamp_initrd_mangle(MANAGER_TIMESTAMP_SECURITY_FINISH)] = security_finish_timestamp; | |
9e58ff9c | 3087 | |
85cb4151 | 3088 | set_manager_defaults(m); |
7b46fc6a | 3089 | set_manager_settings(m); |
fd130612 | 3090 | manager_set_first_boot(m, first_boot); |
d35fe8c0 | 3091 | manager_set_switching_root(m, arg_switched_root); |
27d340c7 | 3092 | |
bf4df7c3 | 3093 | /* Remember whether we should queue the default job */ |
d3b1c508 | 3094 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 3095 | |
9d76d730 LP |
3096 | before_startup = now(CLOCK_MONOTONIC); |
3097 | ||
2a7cf953 | 3098 | r = manager_startup(m, arg_serialization, fds, /* root= */ NULL); |
58f88d92 | 3099 | if (r < 0) { |
cefb3eda | 3100 | error_message = "Failed to start up manager"; |
58f88d92 ZJS |
3101 | goto finish; |
3102 | } | |
a16e1123 | 3103 | |
6acca5fc | 3104 | /* This will close all file descriptors that were opened, but not claimed by any unit. */ |
2feceb5e | 3105 | fds = fdset_free(fds); |
74ca738f | 3106 | arg_serialization = safe_fclose(arg_serialization); |
bf4df7c3 LP |
3107 | |
3108 | if (queue_default_job) { | |
6acca5fc | 3109 | r = do_queue_default_job(m, &error_message); |
718db961 | 3110 | if (r < 0) |
37d88da7 | 3111 | goto finish; |
6acca5fc | 3112 | } |
ab17a050 | 3113 | |
6acca5fc | 3114 | after_startup = now(CLOCK_MONOTONIC); |
60918275 | 3115 | |
6acca5fc LP |
3116 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, |
3117 | "Loaded units and determined initial transaction in %s.", | |
5291f26d | 3118 | FORMAT_TIMESPAN(after_startup - before_startup, 100 * USEC_PER_MSEC)); |
07672f49 | 3119 | |
6acca5fc | 3120 | if (arg_action == ACTION_TEST) { |
2a341bb9 | 3121 | manager_test_summary(m); |
6acca5fc LP |
3122 | retval = EXIT_SUCCESS; |
3123 | goto finish; | |
e965d56d | 3124 | } |
d46de8a1 | 3125 | |
5409c6fc ZJS |
3126 | r = invoke_main_loop(m, |
3127 | &saved_rlimit_nofile, | |
3128 | &saved_rlimit_memlock, | |
3129 | &retval, | |
5409c6fc ZJS |
3130 | &fds, |
3131 | &switch_root_dir, | |
3132 | &switch_root_init, | |
3133 | &error_message); | |
3134 | assert(r < 0 || IN_SET(r, MANAGER_EXIT, /* MANAGER_OK is not expected here. */ | |
3135 | MANAGER_RELOAD, | |
3136 | MANAGER_REEXECUTE, | |
3137 | MANAGER_REBOOT, | |
13ffc607 | 3138 | MANAGER_SOFT_REBOOT, |
5409c6fc ZJS |
3139 | MANAGER_POWEROFF, |
3140 | MANAGER_HALT, | |
3141 | MANAGER_KEXEC, | |
3142 | MANAGER_SWITCH_ROOT)); | |
f170852a | 3143 | |
60918275 | 3144 | finish: |
b87c2aa6 ZJS |
3145 | pager_close(); |
3146 | ||
92890452 | 3147 | if (m) { |
986935cf FB |
3148 | arg_reboot_watchdog = manager_get_watchdog(m, WATCHDOG_REBOOT); |
3149 | arg_kexec_watchdog = manager_get_watchdog(m, WATCHDOG_KEXEC); | |
92890452 LP |
3150 | m = manager_free(m); |
3151 | } | |
60918275 | 3152 | |
cc56fafe | 3153 | mac_selinux_finish(); |
b2bb3dbe | 3154 | |
13ffc607 | 3155 | if (IN_SET(r, MANAGER_REEXECUTE, MANAGER_SWITCH_ROOT, MANAGER_SOFT_REBOOT)) |
1e3eee8c ZJS |
3156 | r = do_reexecute(r, |
3157 | argc, argv, | |
3158 | &saved_rlimit_nofile, | |
3159 | &saved_rlimit_memlock, | |
3160 | fds, | |
3161 | switch_root_dir, | |
3162 | switch_root_init, | |
3163 | &error_message); /* This only returns if reexecution failed */ | |
a16e1123 | 3164 | |
74ca738f | 3165 | arg_serialization = safe_fclose(arg_serialization); |
2feceb5e | 3166 | fds = fdset_free(fds); |
a16e1123 | 3167 | |
0e06a031 LP |
3168 | saved_env = strv_free(saved_env); |
3169 | ||
349cc4a5 | 3170 | #if HAVE_VALGRIND_VALGRIND_H |
54b434b1 LP |
3171 | /* If we are PID 1 and running under valgrind, then let's exit |
3172 | * here explicitly. valgrind will only generate nice output on | |
3173 | * exit(), not on exec(), hence let's do the former not the | |
3174 | * latter here. */ | |
8a2c1fbf EJ |
3175 | if (getpid_cached() == 1 && RUNNING_ON_VALGRIND) { |
3176 | /* Cleanup watchdog_device strings for valgrind. We need them | |
3177 | * in become_shutdown() so normally we cannot free them yet. */ | |
3178 | watchdog_free_device(); | |
7d9eea2b | 3179 | reset_arguments(); |
27fe58b7 | 3180 | return retval; |
8a2c1fbf | 3181 | } |
54b434b1 LP |
3182 | #endif |
3183 | ||
7e11a95e | 3184 | #if HAS_FEATURE_ADDRESS_SANITIZER |
ae5ce7e3 FS |
3185 | /* At this stage we most likely don't have stdio/stderr open, so the following |
3186 | * LSan check would not print any actionable information and would just crash | |
3187 | * PID 1. To make this a bit more helpful, let's try to open /dev/console, | |
3188 | * and if we succeed redirect LSan's report there. */ | |
7b19bd60 FS |
3189 | if (getpid_cached() == 1) { |
3190 | _cleanup_close_ int tty_fd = -EBADF; | |
ae5ce7e3 | 3191 | |
7b19bd60 FS |
3192 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
3193 | if (tty_fd >= 0) | |
3194 | __sanitizer_set_report_fd((void*) (intptr_t) tty_fd); | |
ae5ce7e3 | 3195 | |
7b19bd60 FS |
3196 | __lsan_do_leak_check(); |
3197 | } | |
7e11a95e EV |
3198 | #endif |
3199 | ||
88eec29d DDM |
3200 | if (r < 0) |
3201 | (void) sd_notifyf(0, "ERRNO=%i", -r); | |
3202 | ||
5409c6fc ZJS |
3203 | /* Try to invoke the shutdown binary unless we already failed. |
3204 | * If we failed above, we want to freeze after finishing cleanup. */ | |
4870133b LP |
3205 | if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && |
3206 | IN_SET(r, MANAGER_EXIT, MANAGER_REBOOT, MANAGER_POWEROFF, MANAGER_HALT, MANAGER_KEXEC)) { | |
b22d392d | 3207 | r = become_shutdown(r, retval); |
4a36297c | 3208 | log_error_errno(r, "Failed to execute shutdown binary, %s: %m", getpid_cached() == 1 ? "freezing" : "quitting"); |
9b9881d7 | 3209 | error_message = "Failed to execute shutdown binary"; |
b9080b03 FF |
3210 | } |
3211 | ||
3a89cb84 DDM |
3212 | /* This is primarily useful when running systemd in a VM, as it provides the user running the VM with |
3213 | * a mechanism to pick up systemd's exit status in the VM. */ | |
3214 | (void) sd_notifyf(0, "EXIT_STATUS=%i", retval); | |
3215 | ||
8a2c1fbf EJ |
3216 | watchdog_free_device(); |
3217 | arg_watchdog_device = mfree(arg_watchdog_device); | |
3218 | ||
df0ff127 | 3219 | if (getpid_cached() == 1) { |
cb6531be ZJS |
3220 | if (error_message) |
3221 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
1fc464f6 | 3222 | ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL, |
bb259772 LP |
3223 | "%s.", error_message); |
3224 | freeze_or_exit_or_reboot(); | |
cb6531be | 3225 | } |
c3b3c274 | 3226 | |
7d9eea2b | 3227 | reset_arguments(); |
60918275 LP |
3228 | return retval; |
3229 | } |