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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
6edd7d0a | 2 | /*** |
96b2fb93 LP |
3 | Copyright © 2010-2017 Canonical |
4 | Copyright © 2018 Dell Inc. | |
6edd7d0a LP |
5 | ***/ |
6 | ||
6edd7d0a | 7 | #include <errno.h> |
ca78ad1d | 8 | #include <fcntl.h> |
19adb8a3 | 9 | #include <getopt.h> |
17c40b3a | 10 | #include <linux/fiemap.h> |
1bbbefe7 | 11 | #include <poll.h> |
ca78ad1d ZJS |
12 | #include <sys/stat.h> |
13 | #include <sys/types.h> | |
1bbbefe7 | 14 | #include <sys/timerfd.h> |
ca78ad1d | 15 | #include <unistd.h> |
6edd7d0a | 16 | |
f13f91f0 | 17 | #include "sd-bus.h" |
aa62a893 | 18 | #include "sd-messages.h" |
3f6fd1ba | 19 | |
64602c84 | 20 | #include "btrfs-util.h" |
d6b4d1c7 | 21 | #include "build.h" |
ba0fb5ac | 22 | #include "bus-error.h" |
f13f91f0 SS |
23 | #include "bus-locator.h" |
24 | #include "bus-util.h" | |
28db6fbf | 25 | #include "constants.h" |
89711996 | 26 | #include "exec-util.h" |
3ffd4af2 | 27 | #include "fd-util.h" |
a5c32cff | 28 | #include "fileio.h" |
ba0fb5ac | 29 | #include "format-util.h" |
0f2d351f | 30 | #include "io-util.h" |
3f6fd1ba | 31 | #include "log.h" |
5e332028 | 32 | #include "main-func.h" |
ed698d30 | 33 | #include "parse-util.h" |
294bf0c3 | 34 | #include "pretty-print.h" |
19adb8a3 | 35 | #include "sleep-config.h" |
f13f91f0 | 36 | #include "special.h" |
c58493c0 | 37 | #include "stdio-util.h" |
07630cea | 38 | #include "string-util.h" |
3f6fd1ba | 39 | #include "strv.h" |
1bbbefe7 | 40 | #include "time-util.h" |
19adb8a3 | 41 | |
c8cd8ca3 | 42 | static SleepOperation arg_operation = _SLEEP_OPERATION_INVALID; |
98dc9d1f | 43 | |
7bdf56a2 | 44 | static int write_hibernate_location_info(const HibernateLocation *hibernate_location) { |
17c40b3a | 45 | char offset_str[DECIMAL_STR_MAX(uint64_t)]; |
52133271 | 46 | char resume_str[DECIMAL_STR_MAX(unsigned) * 2 + STRLEN(":")]; |
17c40b3a ML |
47 | int r; |
48 | ||
7bdf56a2 ZS |
49 | assert(hibernate_location); |
50 | assert(hibernate_location->swap); | |
7bdf56a2 | 51 | |
52133271 ZS |
52 | xsprintf(resume_str, "%u:%u", major(hibernate_location->devno), minor(hibernate_location->devno)); |
53 | r = write_string_file("/sys/power/resume", resume_str, WRITE_STRING_FILE_DISABLE_BUFFER); | |
17c40b3a | 54 | if (r < 0) |
7bdf56a2 | 55 | return log_debug_errno(r, "Failed to write partition device to /sys/power/resume for '%s': '%s': %m", |
52133271 | 56 | hibernate_location->swap->device, resume_str); |
17c40b3a | 57 | |
52133271 | 58 | log_debug("Wrote resume= value for %s to /sys/power/resume: %s", hibernate_location->swap->device, resume_str); |
ed698d30 | 59 | |
7bdf56a2 ZS |
60 | /* if it's a swap partition, we're done */ |
61 | if (streq(hibernate_location->swap->type, "partition")) | |
ed698d30 | 62 | return r; |
7bdf56a2 ZS |
63 | |
64 | if (!streq(hibernate_location->swap->type, "file")) | |
baaa35ad | 65 | return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), |
7bdf56a2 | 66 | "Invalid hibernate type: %s", hibernate_location->swap->type); |
17c40b3a ML |
67 | |
68 | /* Only available in 4.17+ */ | |
52133271 | 69 | if (hibernate_location->offset > 0 && access("/sys/power/resume_offset", W_OK) < 0) { |
c695101f | 70 | if (errno == ENOENT) { |
7bdf56a2 | 71 | log_debug("Kernel too old, can't configure resume_offset for %s, ignoring: %" PRIu64, |
52133271 | 72 | hibernate_location->swap->device, hibernate_location->offset); |
17c40b3a | 73 | return 0; |
c695101f | 74 | } |
ed698d30 | 75 | |
3f2e15ab | 76 | return log_debug_errno(errno, "/sys/power/resume_offset not writable: %m"); |
c695101f | 77 | } |
17c40b3a | 78 | |
52133271 | 79 | xsprintf(offset_str, "%" PRIu64, hibernate_location->offset); |
57512c89 | 80 | r = write_string_file("/sys/power/resume_offset", offset_str, WRITE_STRING_FILE_DISABLE_BUFFER); |
17c40b3a | 81 | if (r < 0) |
7bdf56a2 ZS |
82 | return log_debug_errno(r, "Failed to write swap file offset to /sys/power/resume_offset for '%s': '%s': %m", |
83 | hibernate_location->swap->device, offset_str); | |
17c40b3a | 84 | |
7bdf56a2 | 85 | log_debug("Wrote resume_offset= value for %s to /sys/power/resume_offset: %s", hibernate_location->swap->device, offset_str); |
2002d8cd | 86 | |
17c40b3a ML |
87 | return 0; |
88 | } | |
89 | ||
19adb8a3 ZJS |
90 | static int write_mode(char **modes) { |
91 | int r = 0; | |
19adb8a3 ZJS |
92 | |
93 | STRV_FOREACH(mode, modes) { | |
aa62a893 LP |
94 | int k; |
95 | ||
57512c89 | 96 | k = write_string_file("/sys/power/disk", *mode, WRITE_STRING_FILE_DISABLE_BUFFER); |
ed698d30 | 97 | if (k >= 0) |
19adb8a3 | 98 | return 0; |
aa62a893 | 99 | |
ed698d30 LP |
100 | log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m", *mode); |
101 | if (r >= 0) | |
19adb8a3 ZJS |
102 | r = k; |
103 | } | |
6edd7d0a | 104 | |
19adb8a3 ZJS |
105 | return r; |
106 | } | |
6edd7d0a | 107 | |
2fd069b1 | 108 | static int write_state(FILE **f, char **states) { |
19adb8a3 ZJS |
109 | int r = 0; |
110 | ||
2c470205 LP |
111 | assert(f); |
112 | assert(*f); | |
113 | ||
19adb8a3 ZJS |
114 | STRV_FOREACH(state, states) { |
115 | int k; | |
116 | ||
57512c89 | 117 | k = write_string_stream(*f, *state, WRITE_STRING_FILE_DISABLE_BUFFER); |
ed698d30 | 118 | if (k >= 0) |
19adb8a3 | 119 | return 0; |
ed698d30 LP |
120 | log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m", *state); |
121 | if (r >= 0) | |
19adb8a3 ZJS |
122 | r = k; |
123 | ||
2fd069b1 ZJS |
124 | fclose(*f); |
125 | *f = fopen("/sys/power/state", "we"); | |
4a62c710 | 126 | if (!*f) |
0ca906ac | 127 | return -errno; |
6edd7d0a LP |
128 | } |
129 | ||
19adb8a3 ZJS |
130 | return r; |
131 | } | |
6edd7d0a | 132 | |
ba0fb5ac LP |
133 | static int lock_all_homes(void) { |
134 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
135 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; | |
136 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
137 | int r; | |
138 | ||
139 | /* Let's synchronously lock all home directories managed by homed that have been marked for it. This | |
140 | * way the key material required to access these volumes is hopefully removed from memory. */ | |
141 | ||
142 | r = sd_bus_open_system(&bus); | |
143 | if (r < 0) | |
144 | return log_warning_errno(r, "Failed to connect to system bus, ignoring: %m"); | |
145 | ||
146 | r = sd_bus_message_new_method_call( | |
147 | bus, | |
148 | &m, | |
149 | "org.freedesktop.home1", | |
150 | "/org/freedesktop/home1", | |
151 | "org.freedesktop.home1.Manager", | |
152 | "LockAllHomes"); | |
153 | if (r < 0) | |
154 | return bus_log_create_error(r); | |
155 | ||
156 | /* If homed is not running it can't have any home directories active either. */ | |
157 | r = sd_bus_message_set_auto_start(m, false); | |
158 | if (r < 0) | |
159 | return log_error_errno(r, "Failed to disable auto-start of LockAllHomes() message: %m"); | |
160 | ||
161 | r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC, &error, NULL); | |
162 | if (r < 0) { | |
1c5950bd ZJS |
163 | if (!bus_error_is_unknown_service(&error)) |
164 | return log_error_errno(r, "Failed to lock home directories: %s", bus_error_message(&error, r)); | |
ba0fb5ac | 165 | |
75029e15 ZJS |
166 | log_debug("systemd-homed is not running, locking of home directories skipped."); |
167 | } else | |
168 | log_debug("Successfully requested locking of all home directories."); | |
169 | return 0; | |
ba0fb5ac LP |
170 | } |
171 | ||
c8cd8ca3 LP |
172 | static int execute( |
173 | const SleepConfig *sleep_config, | |
174 | SleepOperation operation, | |
175 | const char *action) { | |
176 | ||
e2cc6eca LP |
177 | char *arguments[] = { |
178 | NULL, | |
179 | (char*) "pre", | |
c8cd8ca3 LP |
180 | /* NB: we use 'arg_operation' instead of 'operation' here, as we want to communicate the overall |
181 | * operation here, not the specific one, in case of s2h. */ | |
182 | (char*) sleep_operation_to_string(arg_operation), | |
e2cc6eca LP |
183 | NULL |
184 | }; | |
b5084605 LP |
185 | static const char* const dirs[] = { |
186 | SYSTEM_SLEEP_PATH, | |
187 | NULL | |
188 | }; | |
e2cc6eca | 189 | |
7bdf56a2 | 190 | _cleanup_(hibernate_location_freep) HibernateLocation *hibernate_location = NULL; |
c8cd8ca3 LP |
191 | _cleanup_fclose_ FILE *f = NULL; |
192 | char **modes, **states; | |
7bdf56a2 | 193 | int r; |
6524990f | 194 | |
c8cd8ca3 LP |
195 | assert(sleep_config); |
196 | assert(operation >= 0); | |
197 | assert(operation < _SLEEP_OPERATION_MAX); | |
198 | assert(operation != SLEEP_SUSPEND_THEN_HIBERNATE); /* Handled by execute_s2h() instead */ | |
199 | ||
200 | states = sleep_config->states[operation]; | |
201 | modes = sleep_config->modes[operation]; | |
202 | ||
203 | if (strv_isempty(states)) | |
204 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
205 | "No sleep states configured for sleep operation %s, can't sleep.", | |
206 | sleep_operation_to_string(operation)); | |
207 | ||
19adb8a3 | 208 | /* This file is opened first, so that if we hit an error, |
09692409 | 209 | * we can abort before modifying any state. */ |
6edd7d0a | 210 | f = fopen("/sys/power/state", "we"); |
4a62c710 MS |
211 | if (!f) |
212 | return log_error_errno(errno, "Failed to open /sys/power/state: %m"); | |
6edd7d0a | 213 | |
57512c89 YW |
214 | setvbuf(f, NULL, _IONBF, 0); |
215 | ||
c02540dc | 216 | /* Configure hibernation settings if we are supposed to hibernate */ |
17c40b3a | 217 | if (!strv_isempty(modes)) { |
7bdf56a2 | 218 | r = find_hibernate_location(&hibernate_location); |
17c40b3a | 219 | if (r < 0) |
c02540dc LP |
220 | return log_error_errno(r, "Failed to find location to hibernate to: %m"); |
221 | if (r == 0) { /* 0 means: no hibernation location was configured in the kernel so far, let's | |
222 | * do it ourselves then. > 0 means: kernel already had a configured hibernation | |
223 | * location which we shouldn't touch. */ | |
7bdf56a2 ZS |
224 | r = write_hibernate_location_info(hibernate_location); |
225 | if (r < 0) | |
226 | return log_error_errno(r, "Failed to prepare for hibernation: %m"); | |
227 | } | |
2002d8cd | 228 | |
17c40b3a ML |
229 | r = write_mode(modes); |
230 | if (r < 0) | |
aea29a30 | 231 | return log_error_errno(r, "Failed to write mode to /sys/power/disk: %m"); |
17c40b3a | 232 | } |
19adb8a3 | 233 | |
c8cd8ca3 LP |
234 | /* Pass an action string to the call-outs. This is mostly our operation string, except if the |
235 | * hibernate step of s-t-h fails, in which case we communicate that with a separate action. */ | |
236 | if (!action) | |
237 | action = sleep_operation_to_string(operation); | |
238 | ||
ae463e4e ZS |
239 | r = setenv("SYSTEMD_SLEEP_ACTION", action, 1); |
240 | if (r != 0) | |
c3565fe8 | 241 | log_warning_errno(errno, "Error setting SYSTEMD_SLEEP_ACTION=%s, ignoring: %m", action); |
ae463e4e | 242 | |
aed98342 | 243 | (void) execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL, NULL, arguments, NULL, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); |
ba0fb5ac | 244 | (void) lock_all_homes(); |
6edd7d0a | 245 | |
19adb8a3 | 246 | log_struct(LOG_INFO, |
2b044526 | 247 | "MESSAGE_ID=" SD_MESSAGE_SLEEP_START_STR, |
c8cd8ca3 LP |
248 | LOG_MESSAGE("Entering sleep state '%s'...", sleep_operation_to_string(operation)), |
249 | "SLEEP=%s", sleep_operation_to_string(arg_operation)); | |
19adb8a3 | 250 | |
2fd069b1 | 251 | r = write_state(&f, states); |
19adb8a3 | 252 | if (r < 0) |
14250f09 LP |
253 | log_struct_errno(LOG_ERR, r, |
254 | "MESSAGE_ID=" SD_MESSAGE_SLEEP_STOP_STR, | |
c8cd8ca3 LP |
255 | LOG_MESSAGE("Failed to put system to sleep. System resumed again: %m"), |
256 | "SLEEP=%s", sleep_operation_to_string(arg_operation)); | |
14250f09 LP |
257 | else |
258 | log_struct(LOG_INFO, | |
259 | "MESSAGE_ID=" SD_MESSAGE_SLEEP_STOP_STR, | |
c8cd8ca3 LP |
260 | LOG_MESSAGE("System returned from sleep state."), |
261 | "SLEEP=%s", sleep_operation_to_string(arg_operation)); | |
eb267289 | 262 | |
6edd7d0a | 263 | arguments[1] = (char*) "post"; |
aed98342 | 264 | (void) execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL, NULL, arguments, NULL, EXEC_DIR_PARALLEL | EXEC_DIR_IGNORE_ERRORS); |
6edd7d0a | 265 | |
19adb8a3 ZJS |
266 | return r; |
267 | } | |
6edd7d0a | 268 | |
1afe3d71 | 269 | static int custom_timer_suspend(const SleepConfig *sleep_config) { |
c58493c0 ML |
270 | int r; |
271 | ||
28ca9c24 | 272 | assert(sleep_config); |
c58493c0 | 273 | |
96d662fa | 274 | while (battery_is_low() == 0) { |
de5d8b40 | 275 | _cleanup_hashmap_free_ Hashmap *last_capacity = NULL, *current_capacity = NULL; |
254d1313 | 276 | _cleanup_close_ int tfd = -EBADF; |
96d662fa | 277 | struct itimerspec ts = {}; |
d812e104 | 278 | usec_t suspend_interval = sleep_config->hibernate_delay_usec, total_suspend_interval; |
96d662fa | 279 | bool woken_by_timer; |
96d662fa SS |
280 | |
281 | tfd = timerfd_create(CLOCK_BOOTTIME_ALARM, TFD_NONBLOCK|TFD_CLOEXEC); | |
282 | if (tfd < 0) | |
283 | return log_error_errno(errno, "Error creating timerfd: %m"); | |
284 | ||
d812e104 | 285 | /* Store current battery capacity before suspension */ |
746cf898 | 286 | r = fetch_batteries_capacity_by_name(&last_capacity); |
d812e104 | 287 | if (r < 0) |
96d662fa SS |
288 | return log_error_errno(r, "Error fetching battery capacity percentage: %m"); |
289 | ||
746cf898 | 290 | r = get_total_suspend_interval(last_capacity, &total_suspend_interval); |
91ea7ebc | 291 | if (r < 0) |
746cf898 SS |
292 | log_debug_errno(r, "Failed to estimate suspend interval using previous discharge rate, ignoring: %m"); |
293 | else | |
294 | suspend_interval = total_suspend_interval; | |
295 | ||
d812e104 YW |
296 | usec_t before_timestamp = now(CLOCK_BOOTTIME); |
297 | ||
96d662fa SS |
298 | log_debug("Set timerfd wake alarm for %s", FORMAT_TIMESPAN(suspend_interval, USEC_PER_SEC)); |
299 | /* Wake alarm for system with or without battery to hibernate or estimate discharge rate whichever is applicable */ | |
300 | timespec_store(&ts.it_value, suspend_interval); | |
301 | ||
302 | if (timerfd_settime(tfd, 0, &ts, NULL) < 0) | |
303 | return log_error_errno(errno, "Error setting battery estimate timer: %m"); | |
304 | ||
305 | r = execute(sleep_config, SLEEP_SUSPEND, NULL); | |
306 | if (r < 0) | |
307 | return r; | |
c58493c0 | 308 | |
96d662fa SS |
309 | r = fd_wait_for_event(tfd, POLLIN, 0); |
310 | if (r < 0) | |
311 | return log_error_errno(r, "Error polling timerfd: %m"); | |
312 | /* Store fd_wait status */ | |
313 | woken_by_timer = FLAGS_SET(r, POLLIN); | |
314 | ||
746cf898 | 315 | r = fetch_batteries_capacity_by_name(¤t_capacity); |
d812e104 | 316 | if (r < 0 || hashmap_isempty(current_capacity)) { |
746cf898 | 317 | /* In case of no battery or error while getting charge level, no need to measure |
d812e104 YW |
318 | * discharge rate. Instead the system should wake up if it is manual wakeup or |
319 | * hibernate if this is a timer wakeup. */ | |
320 | if (r < 0) | |
321 | log_debug_errno(r, "Battery capacity percentage unavailable, cannot estimate discharge rate: %m"); | |
322 | else | |
323 | log_debug("No battery found."); | |
746cf898 SS |
324 | if (!woken_by_timer) |
325 | return 0; | |
96d662fa | 326 | break; |
746cf898 | 327 | } |
96d662fa | 328 | |
d812e104 | 329 | usec_t after_timestamp = now(CLOCK_BOOTTIME); |
099810a6 ZJS |
330 | log_debug("Attempting to estimate battery discharge rate after wakeup from %s sleep", |
331 | FORMAT_TIMESPAN(after_timestamp - before_timestamp, USEC_PER_HOUR)); | |
96d662fa | 332 | |
746cf898 SS |
333 | if (after_timestamp != before_timestamp) { |
334 | r = estimate_battery_discharge_rate_per_hour(last_capacity, current_capacity, before_timestamp, after_timestamp); | |
91ea7ebc | 335 | if (r < 0) |
746cf898 SS |
336 | log_warning_errno(r, "Failed to estimate and update battery discharge rate, ignoring: %m"); |
337 | } else | |
338 | log_debug("System woke up too early to estimate discharge rate"); | |
c58493c0 | 339 | |
96d662fa SS |
340 | if (!woken_by_timer) |
341 | /* Return as manual wakeup done. This also will return in case battery was charged during suspension */ | |
342 | return 0; | |
1afe3d71 SS |
343 | |
344 | r = check_wakeup_type(); | |
345 | if (r < 0) | |
346 | log_debug_errno(r, "Failed to check hardware wakeup type, ignoring: %m"); | |
347 | if (r > 0) { | |
348 | log_debug("wakeup type is APM timer"); | |
349 | /* system should hibernate */ | |
350 | break; | |
351 | } | |
352 | } | |
353 | ||
354 | return 1; | |
355 | } | |
356 | ||
f13f91f0 SS |
357 | /* Freeze when invoked and thaw on cleanup */ |
358 | static int freeze_thaw_user_slice(const char **method) { | |
359 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
360 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
361 | int r; | |
362 | ||
363 | if (!method || !*method) | |
364 | return 0; | |
365 | ||
366 | r = bus_connect_system_systemd(&bus); | |
367 | if (r < 0) | |
368 | return log_debug_errno(r, "Failed to open connection to systemd: %m"); | |
369 | ||
432a3211 | 370 | /* Wait for 1.5 seconds at maximum for freeze operation */ |
371 | (void) sd_bus_set_method_call_timeout(bus, 1500 * USEC_PER_MSEC); | |
372 | ||
f13f91f0 SS |
373 | r = bus_call_method(bus, bus_systemd_mgr, *method, &error, NULL, "s", SPECIAL_USER_SLICE); |
374 | if (r < 0) | |
375 | return log_debug_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r)); | |
376 | ||
377 | return 1; | |
378 | } | |
379 | ||
1afe3d71 | 380 | static int execute_s2h(const SleepConfig *sleep_config) { |
efa736d3 | 381 | _unused_ _cleanup_(freeze_thaw_user_slice) const char *auto_method_thaw = "ThawUnit"; |
1afe3d71 SS |
382 | int r, k; |
383 | ||
384 | assert(sleep_config); | |
385 | ||
f13f91f0 SS |
386 | r = freeze_thaw_user_slice(&(const char*) { "FreezeUnit" }); |
387 | if (r < 0) | |
388 | log_debug_errno(r, "Failed to freeze unit user.slice, ignoring: %m"); | |
f13f91f0 | 389 | |
1afe3d71 SS |
390 | r = check_wakeup_type(); |
391 | if (r < 0) | |
392 | log_debug_errno(r, "Failed to check hardware wakeup type, ignoring: %m"); | |
393 | ||
394 | k = battery_trip_point_alarm_exists(); | |
395 | if (k < 0) | |
396 | log_debug_errno(k, "Failed to check whether acpi_btp support is enabled or not, ignoring: %m"); | |
397 | ||
398 | if (r >= 0 && k > 0) { | |
399 | log_debug("Attempting to suspend..."); | |
400 | r = execute(sleep_config, SLEEP_SUSPEND, NULL); | |
401 | if (r < 0) | |
402 | return r; | |
403 | ||
404 | r = check_wakeup_type(); | |
405 | if (r < 0) | |
406 | return log_debug_errno(r, "Failed to check hardware wakeup type: %m"); | |
407 | ||
408 | if (r == 0) | |
409 | /* For APM Timer wakeup, system should hibernate else wakeup */ | |
410 | return 0; | |
411 | } else { | |
412 | r = custom_timer_suspend(sleep_config); | |
413 | if(r < 0) | |
414 | return log_debug_errno(r, "Suspend cycle with manual battery discharge rate estimation failed: %m"); | |
415 | if(r == 0) | |
416 | /* manual wakeup */ | |
417 | return 0; | |
96d662fa | 418 | } |
1afe3d71 | 419 | /* For above custom timer, if 1 is returned, system will directly hibernate */ |
28ca9c24 | 420 | |
96d662fa | 421 | log_debug("Attempting to hibernate"); |
c8cd8ca3 | 422 | r = execute(sleep_config, SLEEP_HIBERNATE, NULL); |
f05e1ae6 | 423 | if (r < 0) { |
b0c035e3 | 424 | log_notice("Couldn't hibernate, will try to suspend again."); |
0f2d351f | 425 | |
c8cd8ca3 | 426 | r = execute(sleep_config, SLEEP_SUSPEND, "suspend-after-failed-hibernate"); |
0f2d351f | 427 | if (r < 0) |
b0c035e3 | 428 | return r; |
f05e1ae6 LP |
429 | } |
430 | ||
431 | return 0; | |
c58493c0 ML |
432 | } |
433 | ||
37ec0fdd LP |
434 | static int help(void) { |
435 | _cleanup_free_ char *link = NULL; | |
436 | int r; | |
437 | ||
438 | r = terminal_urlify_man("systemd-suspend.service", "8", &link); | |
439 | if (r < 0) | |
440 | return log_oom(); | |
441 | ||
19adb8a3 ZJS |
442 | printf("%s COMMAND\n\n" |
443 | "Suspend the system, hibernate the system, or both.\n\n" | |
37ec0fdd LP |
444 | " -h --help Show this help and exit\n" |
445 | " --version Print version string and exit\n" | |
446 | "\nCommands:\n" | |
447 | " suspend Suspend the system\n" | |
448 | " hibernate Hibernate the system\n" | |
449 | " hybrid-sleep Both hibernate and suspend the system\n" | |
e68c79db | 450 | " suspend-then-hibernate Initially suspend and then hibernate\n" |
37ec0fdd | 451 | " the system after a fixed period of time\n" |
bc556335 DDM |
452 | "\nSee the %s for details.\n", |
453 | program_invocation_short_name, | |
454 | link); | |
37ec0fdd LP |
455 | |
456 | return 0; | |
19adb8a3 | 457 | } |
6edd7d0a | 458 | |
19adb8a3 ZJS |
459 | static int parse_argv(int argc, char *argv[]) { |
460 | enum { | |
461 | ARG_VERSION = 0x100, | |
462 | }; | |
463 | ||
464 | static const struct option options[] = { | |
465 | { "help", no_argument, NULL, 'h' }, | |
466 | { "version", no_argument, NULL, ARG_VERSION }, | |
eb9da376 | 467 | {} |
19adb8a3 ZJS |
468 | }; |
469 | ||
470 | int c; | |
471 | ||
472 | assert(argc >= 0); | |
473 | assert(argv); | |
474 | ||
601185b4 | 475 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
79893116 | 476 | switch (c) { |
19adb8a3 | 477 | case 'h': |
37ec0fdd | 478 | return help(); |
19adb8a3 ZJS |
479 | |
480 | case ARG_VERSION: | |
3f6fd1ba | 481 | return version(); |
19adb8a3 ZJS |
482 | |
483 | case '?': | |
484 | return -EINVAL; | |
485 | ||
486 | default: | |
04499a70 | 487 | assert_not_reached(); |
19adb8a3 ZJS |
488 | } |
489 | ||
baaa35ad ZJS |
490 | if (argc - optind != 1) |
491 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
492 | "Usage: %s COMMAND", | |
493 | program_invocation_short_name); | |
19adb8a3 | 494 | |
c8cd8ca3 LP |
495 | arg_operation = sleep_operation_from_string(argv[optind]); |
496 | if (arg_operation < 0) | |
497 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown command '%s'.", argv[optind]); | |
19adb8a3 ZJS |
498 | |
499 | return 1 /* work to do */; | |
500 | } | |
501 | ||
7caefb81 | 502 | static int run(int argc, char *argv[]) { |
28ca9c24 | 503 | _cleanup_(free_sleep_configp) SleepConfig *sleep_config = NULL; |
19adb8a3 ZJS |
504 | int r; |
505 | ||
d2acb93d | 506 | log_setup(); |
19adb8a3 ZJS |
507 | |
508 | r = parse_argv(argc, argv); | |
509 | if (r <= 0) | |
7caefb81 | 510 | return r; |
19adb8a3 | 511 | |
28ca9c24 ZS |
512 | r = parse_sleep_config(&sleep_config); |
513 | if (r < 0) | |
514 | return r; | |
515 | ||
c8cd8ca3 | 516 | if (!sleep_config->allow[arg_operation]) |
baaa35ad | 517 | return log_error_errno(SYNTHETIC_ERRNO(EACCES), |
c8cd8ca3 LP |
518 | "Sleep operation \"%s\" is disabled by configuration, refusing.", |
519 | sleep_operation_to_string(arg_operation)); | |
e8f1d00d | 520 | |
3d132111 LP |
521 | switch (arg_operation) { |
522 | ||
523 | case SLEEP_SUSPEND_THEN_HIBERNATE: | |
524 | r = execute_s2h(sleep_config); | |
525 | break; | |
526 | ||
527 | case SLEEP_HYBRID_SLEEP: | |
528 | r = execute(sleep_config, SLEEP_HYBRID_SLEEP, NULL); | |
529 | if (r < 0) { | |
530 | /* If we can't hybrid sleep, then let's try to suspend at least. After all, the user | |
531 | * asked us to do both: suspend + hibernate, and it's almost certainly the | |
532 | * hibernation that failed, hence still do the other thing, the suspend. */ | |
533 | ||
534 | log_notice("Couldn't hybrid sleep, will try to suspend instead."); | |
535 | ||
536 | r = execute(sleep_config, SLEEP_SUSPEND, "suspend-after-failed-hybrid-sleep"); | |
537 | } | |
538 | ||
539 | break; | |
540 | ||
541 | default: | |
542 | r = execute(sleep_config, arg_operation, NULL); | |
543 | break; | |
544 | } | |
545 | ||
546 | return r; | |
6edd7d0a | 547 | } |
7caefb81 ZJS |
548 | |
549 | DEFINE_MAIN_FUNCTION(run); |