1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
4 #include <linux/memfd.h>
11 #include "blockdev-util.h"
12 #include "btrfs-util.h"
13 #include "bus-common-errors.h"
14 #include "bus-locator.h"
15 #include "data-fd-util.h"
17 #include "errno-list.h"
18 #include "errno-util.h"
21 #include "filesystems.h"
23 #include "glyph-util.h"
24 #include "home-util.h"
25 #include "homed-home-bus.h"
26 #include "homed-home.h"
27 #include "memfd-util.h"
28 #include "missing_magic.h"
29 #include "missing_mman.h"
30 #include "missing_syscall.h"
32 #include "path-util.h"
33 #include "process-util.h"
34 #include "pwquality-util.h"
35 #include "quota-util.h"
36 #include "resize-fs.h"
38 #include "signal-util.h"
39 #include "stat-util.h"
40 #include "string-table.h"
42 #include "uid-alloc-range.h"
43 #include "user-record-pwquality.h"
44 #include "user-record-sign.h"
45 #include "user-record-util.h"
46 #include "user-record.h"
47 #include "user-util.h"
49 /* Retry to deactivate home directories again and again every 15s until it works */
50 #define RETRY_DEACTIVATE_USEC (15U * USEC_PER_SEC)
52 #define HOME_USERS_MAX 500
53 #define PENDING_OPERATIONS_MAX 100
55 assert_cc(HOME_UID_MIN
<= HOME_UID_MAX
);
56 assert_cc(HOME_USERS_MAX
<= (HOME_UID_MAX
- HOME_UID_MIN
+ 1));
58 static int home_start_work(Home
*h
, const char *verb
, UserRecord
*hr
, UserRecord
*secret
);
60 DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR(operation_hash_ops
, void, trivial_hash_func
, trivial_compare_func
, Operation
, operation_unref
);
62 static int suitable_home_record(UserRecord
*hr
) {
70 /* We are a bit more restrictive with what we accept as homed-managed user than what we accept in
71 * home records in general. Let's enforce the stricter rule here. */
72 if (!suitable_user_name(hr
->user_name
))
74 if (!uid_is_valid(hr
->uid
))
77 /* Insist we are outside of the dynamic and system range */
78 if (uid_is_system(hr
->uid
) || gid_is_system(user_record_gid(hr
)) ||
79 uid_is_dynamic(hr
->uid
) || gid_is_dynamic(user_record_gid(hr
)))
80 return -EADDRNOTAVAIL
;
82 /* Insist that GID and UID match */
83 if (user_record_gid(hr
) != (gid_t
) hr
->uid
)
86 /* Similar for the realm */
88 r
= suitable_realm(hr
->realm
);
98 int home_new(Manager
*m
, UserRecord
*hr
, const char *sysfs
, Home
**ret
) {
99 _cleanup_(home_freep
) Home
*home
= NULL
;
100 _cleanup_free_
char *nm
= NULL
, *ns
= NULL
;
106 r
= suitable_home_record(hr
);
110 if (hashmap_contains(m
->homes_by_name
, hr
->user_name
))
113 if (hashmap_contains(m
->homes_by_uid
, UID_TO_PTR(hr
->uid
)))
116 if (sysfs
&& hashmap_contains(m
->homes_by_sysfs
, sysfs
))
119 if (hashmap_size(m
->homes_by_name
) >= HOME_USERS_MAX
)
122 nm
= strdup(hr
->user_name
);
138 .user_name
= TAKE_PTR(nm
),
140 .state
= _HOME_STATE_INVALID
,
141 .worker_stdout_fd
= -EBADF
,
142 .sysfs
= TAKE_PTR(ns
),
143 .signed_locally
= -1,
145 .luks_lock_fd
= -EBADF
,
148 r
= hashmap_put(m
->homes_by_name
, home
->user_name
, home
);
152 r
= hashmap_put(m
->homes_by_uid
, UID_TO_PTR(home
->uid
), home
);
157 r
= hashmap_put(m
->homes_by_sysfs
, home
->sysfs
, home
);
162 r
= user_record_clone(hr
, USER_RECORD_LOAD_MASK_SECRET
|USER_RECORD_PERMISSIVE
, &home
->record
);
166 (void) bus_manager_emit_auto_login_changed(m
);
167 (void) bus_home_emit_change(home
);
168 (void) manager_schedule_rebalance(m
, /* immediately= */ false);
171 *ret
= TAKE_PTR(home
);
178 Home
*home_free(Home
*h
) {
184 (void) bus_home_emit_remove(h
);
185 (void) bus_manager_emit_auto_login_changed(h
->manager
);
188 (void) hashmap_remove_value(h
->manager
->homes_by_name
, h
->user_name
, h
);
190 if (uid_is_valid(h
->uid
))
191 (void) hashmap_remove_value(h
->manager
->homes_by_uid
, UID_TO_PTR(h
->uid
), h
);
194 (void) hashmap_remove_value(h
->manager
->homes_by_sysfs
, h
->sysfs
, h
);
196 if (h
->worker_pid
> 0)
197 (void) hashmap_remove_value(h
->manager
->homes_by_worker_pid
, PID_TO_PTR(h
->worker_pid
), h
);
199 if (h
->manager
->gc_focus
== h
)
200 h
->manager
->gc_focus
= NULL
;
202 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ false);
205 user_record_unref(h
->record
);
206 user_record_unref(h
->secret
);
208 h
->worker_event_source
= sd_event_source_disable_unref(h
->worker_event_source
);
209 safe_close(h
->worker_stdout_fd
);
213 h
->ref_event_source_please_suspend
= sd_event_source_disable_unref(h
->ref_event_source_please_suspend
);
214 h
->ref_event_source_dont_suspend
= sd_event_source_disable_unref(h
->ref_event_source_dont_suspend
);
216 h
->pending_operations
= ordered_set_free(h
->pending_operations
);
217 h
->pending_event_source
= sd_event_source_disable_unref(h
->pending_event_source
);
218 h
->deferred_change_event_source
= sd_event_source_disable_unref(h
->deferred_change_event_source
);
220 h
->current_operation
= operation_unref(h
->current_operation
);
222 safe_close(h
->pin_fd
);
223 safe_close(h
->luks_lock_fd
);
225 h
->retry_deactivate_event_source
= sd_event_source_disable_unref(h
->retry_deactivate_event_source
);
230 int home_set_record(Home
*h
, UserRecord
*hr
) {
231 _cleanup_(user_record_unrefp
) UserRecord
*new_hr
= NULL
;
236 assert(h
->user_name
);
240 if (user_record_equal(h
->record
, hr
))
243 r
= suitable_home_record(hr
);
247 if (!user_record_compatible(h
->record
, hr
))
250 if (!FLAGS_SET(hr
->mask
, USER_RECORD_REGULAR
) ||
251 FLAGS_SET(hr
->mask
, USER_RECORD_SECRET
))
254 if (FLAGS_SET(h
->record
->mask
, USER_RECORD_STATUS
)) {
255 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
257 /* Hmm, the existing record has status fields? If so, copy them over */
259 v
= json_variant_ref(hr
->json
);
260 r
= json_variant_set_field(&v
, "status", json_variant_by_key(h
->record
->json
, "status"));
264 new_hr
= user_record_new();
268 r
= user_record_load(new_hr
, v
, USER_RECORD_LOAD_REFUSE_SECRET
|USER_RECORD_PERMISSIVE
);
275 other
= hashmap_get(h
->manager
->homes_by_uid
, UID_TO_PTR(hr
->uid
));
276 if (other
&& other
!= h
)
279 if (h
->uid
!= hr
->uid
) {
280 r
= hashmap_remove_and_replace(h
->manager
->homes_by_uid
, UID_TO_PTR(h
->uid
), UID_TO_PTR(hr
->uid
), h
);
285 user_record_unref(h
->record
);
286 h
->record
= user_record_ref(hr
);
287 h
->uid
= h
->record
->uid
;
289 /* The updated record might have a different autologin setting, trigger a PropertiesChanged event for it */
290 (void) bus_manager_emit_auto_login_changed(h
->manager
);
291 (void) bus_home_emit_change(h
);
296 int home_save_record(Home
*h
) {
297 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
298 _cleanup_free_
char *text
= NULL
;
304 v
= json_variant_ref(h
->record
->json
);
305 r
= json_variant_normalize(&v
);
307 log_warning_errno(r
, "User record could not be normalized.");
309 r
= json_variant_format(v
, JSON_FORMAT_PRETTY
|JSON_FORMAT_NEWLINE
, &text
);
313 (void) mkdir("/var/lib/systemd/", 0755);
314 (void) mkdir(home_record_dir(), 0700);
316 fn
= strjoina(home_record_dir(), "/", h
->user_name
, ".identity");
318 r
= write_string_file(fn
, text
, WRITE_STRING_FILE_ATOMIC
|WRITE_STRING_FILE_CREATE
|WRITE_STRING_FILE_MODE_0600
|WRITE_STRING_FILE_SYNC
);
325 int home_unlink_record(Home
*h
) {
330 fn
= strjoina(home_record_dir(), "/", h
->user_name
, ".identity");
331 if (unlink(fn
) < 0 && errno
!= ENOENT
)
334 fn
= strjoina("/run/systemd/home/", h
->user_name
, ".ref");
335 if (unlink(fn
) < 0 && errno
!= ENOENT
)
341 static void home_unpin(Home
*h
) {
347 h
->pin_fd
= safe_close(h
->pin_fd
);
348 log_debug("Successfully closed pin fd on home for %s.", h
->user_name
);
351 static void home_pin(Home
*h
) {
356 if (h
->pin_fd
>= 0) /* Already pinned? */
359 path
= user_record_home_directory(h
->record
);
361 log_warning("No home directory path to pin for %s, ignoring.", h
->user_name
);
365 h
->pin_fd
= open(path
, O_RDONLY
|O_DIRECTORY
|O_CLOEXEC
);
367 log_warning_errno(errno
, "Couldn't open home directory '%s' for pinning, ignoring: %m", path
);
371 log_debug("Successfully pinned home directory '%s'.", path
);
374 static void home_update_pin_fd(Home
*h
, HomeState state
) {
378 state
= home_get_state(h
);
380 return HOME_STATE_SHALL_PIN(state
) ? home_pin(h
) : home_unpin(h
);
383 static void home_maybe_close_luks_lock_fd(Home
*h
, HomeState state
) {
386 if (h
->luks_lock_fd
< 0)
390 state
= home_get_state(h
);
392 /* Keep the lock as long as the home dir is active or has some operation going */
393 if (HOME_STATE_IS_EXECUTING_OPERATION(state
) || HOME_STATE_IS_ACTIVE(state
) || state
== HOME_LOCKED
)
396 h
->luks_lock_fd
= safe_close(h
->luks_lock_fd
);
397 log_debug("Successfully closed LUKS backing file lock for %s.", h
->user_name
);
400 static void home_maybe_stop_retry_deactivate(Home
*h
, HomeState state
) {
403 /* Free the deactivation retry event source if we won't need it anymore. Specifically, we'll free the
404 * event source whenever the home directory is already deactivated (and we thus where successful) or
405 * if we start executing an operation that indicates that the home directory is going to be used or
406 * operated on again. Also, if the home is referenced again stop the timer */
408 if (HOME_STATE_MAY_RETRY_DEACTIVATE(state
) &&
409 !h
->ref_event_source_dont_suspend
&&
410 !h
->ref_event_source_please_suspend
)
413 h
->retry_deactivate_event_source
= sd_event_source_disable_unref(h
->retry_deactivate_event_source
);
416 static int home_deactivate_internal(Home
*h
, bool force
, sd_bus_error
*error
);
417 static void home_start_retry_deactivate(Home
*h
);
419 static int home_on_retry_deactivate(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
420 Home
*h
= ASSERT_PTR(userdata
);
425 /* 15s after the last attempt to deactivate the home directory passed. Let's try it one more time. */
427 h
->retry_deactivate_event_source
= sd_event_source_disable_unref(h
->retry_deactivate_event_source
);
429 state
= home_get_state(h
);
430 if (!HOME_STATE_MAY_RETRY_DEACTIVATE(state
))
433 if (IN_SET(state
, HOME_ACTIVE
, HOME_LINGERING
)) {
434 log_info("Again trying to deactivate home directory.");
436 /* If we are not executing any operation, let's start deactivating now. Note that this will
437 * restart our timer again, we are gonna be called again if this doesn't work. */
438 (void) home_deactivate_internal(h
, /* force= */ false, NULL
);
440 /* if we are executing an operation (specifically, area already running a deactivation
441 * operation), then simply reque the timer, so that we retry again. */
442 home_start_retry_deactivate(h
);
447 static void home_start_retry_deactivate(Home
*h
) {
453 /* Already allocated? */
454 if (h
->retry_deactivate_event_source
)
457 /* If the home directory is being used now don't start the timer */
458 if (h
->ref_event_source_dont_suspend
|| h
->ref_event_source_please_suspend
)
461 r
= sd_event_add_time_relative(
463 &h
->retry_deactivate_event_source
,
465 RETRY_DEACTIVATE_USEC
,
467 home_on_retry_deactivate
,
470 return (void) log_warning_errno(r
, "Failed to install retry-deactivate event source, ignoring: %m");
472 (void) sd_event_source_set_description(h
->retry_deactivate_event_source
, "retry-deactivate");
475 static void home_set_state(Home
*h
, HomeState state
) {
476 HomeState old_state
, new_state
;
480 old_state
= home_get_state(h
);
482 new_state
= home_get_state(h
); /* Query the new state, since the 'state' variable might be set to -1,
483 * in which case we synthesize an high-level state on demand */
485 log_info("%s: changing state %s %s %s", h
->user_name
,
486 home_state_to_string(old_state
),
487 special_glyph(SPECIAL_GLYPH_ARROW_RIGHT
),
488 home_state_to_string(new_state
));
490 home_update_pin_fd(h
, new_state
);
491 home_maybe_close_luks_lock_fd(h
, new_state
);
492 home_maybe_stop_retry_deactivate(h
, new_state
);
494 if (HOME_STATE_IS_EXECUTING_OPERATION(old_state
) && !HOME_STATE_IS_EXECUTING_OPERATION(new_state
)) {
495 /* If we just finished executing some operation, process the queue of pending operations. And
496 * enqueue it for GC too. */
498 home_schedule_operation(h
, NULL
, NULL
);
499 manager_reschedule_rebalance(h
->manager
);
500 manager_enqueue_gc(h
->manager
, h
);
504 static int home_parse_worker_stdout(int _fd
, UserRecord
**ret
) {
505 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
506 _cleanup_close_
int fd
= _fd
; /* take possession, even on failure */
507 _cleanup_(user_record_unrefp
) UserRecord
*hr
= NULL
;
508 _cleanup_fclose_
FILE *f
= NULL
;
509 unsigned line
, column
;
513 if (fstat(fd
, &st
) < 0)
514 return log_error_errno(errno
, "Failed to stat stdout fd: %m");
516 assert(S_ISREG(st
.st_mode
));
518 if (st
.st_size
== 0) { /* empty record */
523 if (lseek(fd
, SEEK_SET
, 0) == (off_t
) -1)
524 return log_error_errno(errno
, "Failed to seek to beginning of memfd: %m");
526 f
= take_fdopen(&fd
, "r");
528 return log_error_errno(errno
, "Failed to reopen memfd: %m");
531 _cleanup_free_
char *text
= NULL
;
533 r
= read_full_stream(f
, &text
, NULL
);
535 return log_error_errno(r
, "Failed to read from client: %m");
537 log_debug("Got from worker: %s", text
);
541 r
= json_parse_file(f
, "stdout", JSON_PARSE_SENSITIVE
, &v
, &line
, &column
);
543 return log_error_errno(r
, "Failed to parse identity at %u:%u: %m", line
, column
);
545 hr
= user_record_new();
549 r
= user_record_load(hr
, v
, USER_RECORD_LOAD_REFUSE_SECRET
|USER_RECORD_PERMISSIVE
);
551 return log_error_errno(r
, "Failed to load home record identity: %m");
557 static int home_verify_user_record(Home
*h
, UserRecord
*hr
, bool *ret_signed_locally
, sd_bus_error
*ret_error
) {
562 assert(ret_signed_locally
);
564 is_signed
= manager_verify_user_record(h
->manager
, hr
);
567 case USER_RECORD_SIGNED_EXCLUSIVE
:
568 log_info("Home %s is signed exclusively by our key, accepting.", hr
->user_name
);
569 *ret_signed_locally
= true;
572 case USER_RECORD_SIGNED
:
573 log_info("Home %s is signed by our key (and others), accepting.", hr
->user_name
);
574 *ret_signed_locally
= false;
577 case USER_RECORD_FOREIGN
:
578 log_info("Home %s is signed by foreign key we like, accepting.", hr
->user_name
);
579 *ret_signed_locally
= false;
582 case USER_RECORD_UNSIGNED
:
583 sd_bus_error_setf(ret_error
, BUS_ERROR_BAD_SIGNATURE
, "User record %s is not signed at all, refusing.", hr
->user_name
);
584 return log_error_errno(SYNTHETIC_ERRNO(EPERM
), "Home %s contains user record that is not signed at all, refusing.", hr
->user_name
);
587 sd_bus_error_setf(ret_error
, BUS_ERROR_BAD_SIGNATURE
, "User record %s is not signed by any known key, refusing.", hr
->user_name
);
588 return log_error_errno(is_signed
, "Home %s contains user record that is not signed by any known key, refusing.", hr
->user_name
);
591 assert(is_signed
< 0);
592 return log_error_errno(is_signed
, "Failed to verify signature on user record for %s, refusing fixation: %m", hr
->user_name
);
596 static int convert_worker_errno(Home
*h
, int e
, sd_bus_error
*error
) {
597 /* Converts the error numbers the worker process returned into somewhat sensible dbus errors */
602 return sd_bus_error_set(error
, BUS_ERROR_BAD_HOME_SIZE
, "File systems of this type cannot be shrunk");
604 return sd_bus_error_set(error
, BUS_ERROR_BAD_HOME_SIZE
, "File systems of this type can only be shrunk offline");
606 return sd_bus_error_set(error
, BUS_ERROR_BAD_HOME_SIZE
, "File system size too small");
608 return sd_bus_error_set(error
, SD_BUS_ERROR_NOT_SUPPORTED
, "System does not support selected storage backend");
609 case -EPROTONOSUPPORT
:
610 return sd_bus_error_set(error
, SD_BUS_ERROR_NOT_SUPPORTED
, "System does not support selected file system");
612 return sd_bus_error_set(error
, SD_BUS_ERROR_NOT_SUPPORTED
, "Operation not supported on storage backend");
613 case -ESOCKTNOSUPPORT
:
614 return sd_bus_error_set(error
, SD_BUS_ERROR_NOT_SUPPORTED
, "Operation not supported on file system");
616 return sd_bus_error_setf(error
, BUS_ERROR_BAD_PASSWORD
, "Password for home %s is incorrect or not sufficient for authentication.", h
->user_name
);
618 return sd_bus_error_setf(error
, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN
, "Password for home %s is incorrect or not sufficient, and configured security token not found either.", h
->user_name
);
620 return sd_bus_error_setf(error
, BUS_ERROR_BAD_RECOVERY_KEY
, "Recovery key for home %s is incorrect or not sufficient for authentication.", h
->user_name
);
622 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_PIN_NEEDED
, "PIN for security token required.");
624 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_PROTECTED_AUTHENTICATION_PATH_NEEDED
, "Security token requires protected authentication path.");
626 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_USER_PRESENCE_NEEDED
, "Security token requires presence confirmation.");
628 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_USER_VERIFICATION_NEEDED
, "Security token requires user verification.");
630 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_ACTION_TIMEOUT
, "Token action timeout. (User was supposed to verify presence or similar, by interacting with the token, and didn't do that in time.)");
632 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_PIN_LOCKED
, "PIN of security token locked.");
634 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_BAD_PIN
, "Bad PIN of security token.");
636 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_BAD_PIN_FEW_TRIES_LEFT
, "Bad PIN of security token, and only a few tries left.");
638 return sd_bus_error_set(error
, BUS_ERROR_TOKEN_BAD_PIN_ONE_TRY_LEFT
, "Bad PIN of security token, and only one try left.");
640 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "Home %s is currently being used, or an operation on home %s is currently being executed.", h
->user_name
, h
->user_name
);
642 return sd_bus_error_setf(error
, BUS_ERROR_HOME_NOT_ACTIVE
, "Home %s is currently not active", h
->user_name
);
644 return sd_bus_error_setf(error
, BUS_ERROR_NO_DISK_SPACE
, "Not enough disk space for home %s", h
->user_name
);
646 return sd_bus_error_setf(error
, BUS_ERROR_HOME_CANT_AUTHENTICATE
, "Home %s has no password or other authentication mechanism defined.", h
->user_name
);
648 return sd_bus_error_setf(error
, BUS_ERROR_HOME_IN_USE
, "Home %s is currently being used elsewhere.", h
->user_name
);
654 static void home_count_bad_authentication(Home
*h
, bool save
) {
659 r
= user_record_bad_authentication(h
->record
);
661 log_warning_errno(r
, "Failed to increase bad authentication counter, ignoring: %m");
666 r
= home_save_record(h
);
668 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
672 static void home_fixate_finish(Home
*h
, int ret
, UserRecord
*hr
) {
673 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
674 _cleanup_(user_record_unrefp
) UserRecord
*secret
= NULL
;
679 assert(IN_SET(h
->state
, HOME_FIXATING
, HOME_FIXATING_FOR_ACTIVATION
, HOME_FIXATING_FOR_ACQUIRE
));
681 secret
= TAKE_PTR(h
->secret
); /* Take possession */
685 (void) home_count_bad_authentication(h
, false);
687 (void) convert_worker_errno(h
, ret
, &error
);
688 r
= log_error_errno(ret
, "Fixation failed: %m");
692 r
= log_error_errno(SYNTHETIC_ERRNO(EIO
), "Did not receive user record from worker process, fixation failed.");
696 r
= home_verify_user_record(h
, hr
, &signed_locally
, &error
);
700 r
= home_set_record(h
, hr
);
702 log_error_errno(r
, "Failed to update home record: %m");
706 h
->signed_locally
= signed_locally
;
708 /* When we finished fixating (and don't follow-up with activation), let's count this as good authentication */
709 if (h
->state
== HOME_FIXATING
) {
710 r
= user_record_good_authentication(h
->record
);
712 log_warning_errno(r
, "Failed to increase good authentication counter, ignoring: %m");
715 r
= home_save_record(h
);
717 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
719 if (IN_SET(h
->state
, HOME_FIXATING_FOR_ACTIVATION
, HOME_FIXATING_FOR_ACQUIRE
)) {
721 r
= home_start_work(h
, "activate", h
->record
, secret
);
723 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, NULL
);
724 home_set_state(h
, _HOME_STATE_INVALID
);
726 home_set_state(h
, h
->state
== HOME_FIXATING_FOR_ACTIVATION
? HOME_ACTIVATING
: HOME_ACTIVATING_FOR_ACQUIRE
);
731 log_debug("Fixation of %s completed.", h
->user_name
);
733 h
->current_operation
= operation_result_unref(h
->current_operation
, 0, NULL
);
735 /* Reset the state to "invalid", which makes home_get_state() test if the image exists and returns
736 * HOME_ABSENT vs. HOME_INACTIVE as necessary. */
737 home_set_state(h
, _HOME_STATE_INVALID
);
738 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ false);
742 /* If fixation fails, we stay in unfixated state! */
743 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
744 home_set_state(h
, HOME_UNFIXATED
);
747 static void home_activate_finish(Home
*h
, int ret
, UserRecord
*hr
) {
748 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
752 assert(IN_SET(h
->state
, HOME_ACTIVATING
, HOME_ACTIVATING_FOR_ACQUIRE
));
756 home_count_bad_authentication(h
, true);
758 (void) convert_worker_errno(h
, ret
, &error
);
759 r
= log_error_errno(ret
, "Activation failed: %m");
766 r
= home_verify_user_record(h
, hr
, &signed_locally
, &error
);
770 r
= home_set_record(h
, hr
);
772 log_error_errno(r
, "Failed to update home record, ignoring: %m");
776 h
->signed_locally
= signed_locally
;
778 r
= user_record_good_authentication(h
->record
);
780 log_warning_errno(r
, "Failed to increase good authentication counter, ignoring: %m");
782 r
= home_save_record(h
);
784 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
787 log_debug("Activation of %s completed.", h
->user_name
);
791 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
792 home_set_state(h
, _HOME_STATE_INVALID
);
795 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ true);
798 static void home_deactivate_finish(Home
*h
, int ret
, UserRecord
*hr
) {
799 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
803 assert(h
->state
== HOME_DEACTIVATING
);
804 assert(!hr
); /* We don't expect a record on this operation */
807 (void) convert_worker_errno(h
, ret
, &error
);
808 r
= log_error_errno(ret
, "Deactivation of %s failed: %m", h
->user_name
);
812 log_debug("Deactivation of %s completed.", h
->user_name
);
816 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
817 home_set_state(h
, _HOME_STATE_INVALID
);
820 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ true);
823 static void home_remove_finish(Home
*h
, int ret
, UserRecord
*hr
) {
824 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
829 assert(h
->state
== HOME_REMOVING
);
830 assert(!hr
); /* We don't expect a record on this operation */
834 if (ret
< 0 && ret
!= -EALREADY
) {
835 (void) convert_worker_errno(h
, ret
, &error
);
836 r
= log_error_errno(ret
, "Removing %s failed: %m", h
->user_name
);
840 /* For a couple of storage types we can't delete the actual data storage when called (such as LUKS on
841 * partitions like USB sticks, or so). Sometimes these storage locations are among those we normally
842 * automatically discover in /home or in udev. When such a home is deleted let's hence issue a rescan
843 * after completion, so that "unfixated" entries are rediscovered. */
844 if (!IN_SET(user_record_test_image_path(h
->record
), USER_TEST_UNDEFINED
, USER_TEST_ABSENT
))
845 manager_enqueue_rescan(m
);
847 /* The image is now removed from disk. Now also remove our stored record */
848 r
= home_unlink_record(h
);
850 log_error_errno(r
, "Removing record file failed: %m");
854 log_debug("Removal of %s completed.", h
->user_name
);
855 h
->current_operation
= operation_result_unref(h
->current_operation
, 0, NULL
);
857 /* Unload this record from memory too now. */
860 (void) manager_schedule_rebalance(m
, /* immediately= */ true);
864 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
865 home_set_state(h
, _HOME_STATE_INVALID
);
868 static void home_create_finish(Home
*h
, int ret
, UserRecord
*hr
) {
872 assert(h
->state
== HOME_CREATING
);
875 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
877 (void) convert_worker_errno(h
, ret
, &error
);
878 log_error_errno(ret
, "Operation on %s failed: %m", h
->user_name
);
879 h
->current_operation
= operation_result_unref(h
->current_operation
, ret
, &error
);
881 if (h
->unregister_on_failure
) {
882 (void) home_unlink_record(h
);
887 home_set_state(h
, _HOME_STATE_INVALID
);
892 r
= home_set_record(h
, hr
);
894 log_warning_errno(r
, "Failed to update home record, ignoring: %m");
897 r
= home_save_record(h
);
899 log_warning_errno(r
, "Failed to save record to disk, ignoring: %m");
901 log_debug("Creation of %s completed.", h
->user_name
);
903 h
->current_operation
= operation_result_unref(h
->current_operation
, 0, NULL
);
904 home_set_state(h
, _HOME_STATE_INVALID
);
906 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ true);
909 static void home_change_finish(Home
*h
, int ret
, UserRecord
*hr
) {
910 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
917 (void) home_count_bad_authentication(h
, true);
919 (void) convert_worker_errno(h
, ret
, &error
);
920 r
= log_error_errno(ret
, "Change operation failed: %m");
925 r
= home_set_record(h
, hr
);
927 log_warning_errno(r
, "Failed to update home record, ignoring: %m");
929 r
= user_record_good_authentication(h
->record
);
931 log_warning_errno(r
, "Failed to increase good authentication counter, ignoring: %m");
933 r
= home_save_record(h
);
935 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
939 log_debug("Change operation of %s completed.", h
->user_name
);
940 (void) manager_schedule_rebalance(h
->manager
, /* immediately= */ false);
944 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
945 home_set_state(h
, _HOME_STATE_INVALID
);
948 static void home_locking_finish(Home
*h
, int ret
, UserRecord
*hr
) {
949 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
953 assert(h
->state
== HOME_LOCKING
);
956 (void) convert_worker_errno(h
, ret
, &error
);
957 r
= log_error_errno(ret
, "Locking operation failed: %m");
961 log_debug("Locking operation of %s completed.", h
->user_name
);
962 h
->current_operation
= operation_result_unref(h
->current_operation
, 0, NULL
);
963 home_set_state(h
, HOME_LOCKED
);
967 /* If a specific home doesn't know the concept of locking, then that's totally OK, don't propagate
968 * the error if we are executing a LockAllHomes() operation. */
970 if (h
->current_operation
->type
== OPERATION_LOCK_ALL
&& r
== -ENOTTY
)
971 h
->current_operation
= operation_result_unref(h
->current_operation
, 0, NULL
);
973 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
975 home_set_state(h
, _HOME_STATE_INVALID
);
978 static void home_unlocking_finish(Home
*h
, int ret
, UserRecord
*hr
) {
979 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
983 assert(IN_SET(h
->state
, HOME_UNLOCKING
, HOME_UNLOCKING_FOR_ACQUIRE
));
987 (void) home_count_bad_authentication(h
, true);
989 (void) convert_worker_errno(h
, ret
, &error
);
990 r
= log_error_errno(ret
, "Unlocking operation failed: %m");
992 /* Revert to locked state */
993 home_set_state(h
, HOME_LOCKED
);
994 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
998 r
= user_record_good_authentication(h
->record
);
1000 log_warning_errno(r
, "Failed to increase good authentication counter, ignoring: %m");
1002 r
= home_save_record(h
);
1004 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
1007 log_debug("Unlocking operation of %s completed.", h
->user_name
);
1009 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
1010 home_set_state(h
, _HOME_STATE_INVALID
);
1014 static void home_authenticating_finish(Home
*h
, int ret
, UserRecord
*hr
) {
1015 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
1019 assert(IN_SET(h
->state
, HOME_AUTHENTICATING
, HOME_AUTHENTICATING_WHILE_ACTIVE
, HOME_AUTHENTICATING_FOR_ACQUIRE
));
1023 (void) home_count_bad_authentication(h
, true);
1025 (void) convert_worker_errno(h
, ret
, &error
);
1026 r
= log_error_errno(ret
, "Authentication failed: %m");
1031 r
= home_set_record(h
, hr
);
1033 log_warning_errno(r
, "Failed to update home record, ignoring: %m");
1035 r
= user_record_good_authentication(h
->record
);
1037 log_warning_errno(r
, "Failed to increase good authentication counter, ignoring: %m");
1039 r
= home_save_record(h
);
1041 log_warning_errno(r
, "Failed to write home record to disk, ignoring: %m");
1045 log_debug("Authentication of %s completed.", h
->user_name
);
1049 h
->current_operation
= operation_result_unref(h
->current_operation
, r
, &error
);
1050 home_set_state(h
, _HOME_STATE_INVALID
);
1053 static int home_on_worker_process(sd_event_source
*s
, const siginfo_t
*si
, void *userdata
) {
1054 _cleanup_(user_record_unrefp
) UserRecord
*hr
= NULL
;
1055 Home
*h
= ASSERT_PTR(userdata
);
1061 assert(h
->worker_pid
== si
->si_pid
);
1062 assert(h
->worker_event_source
);
1063 assert(h
->worker_stdout_fd
>= 0);
1065 (void) hashmap_remove_value(h
->manager
->homes_by_worker_pid
, PID_TO_PTR(h
->worker_pid
), h
);
1068 h
->worker_event_source
= sd_event_source_disable_unref(h
->worker_event_source
);
1070 if (si
->si_code
!= CLD_EXITED
) {
1071 assert(IN_SET(si
->si_code
, CLD_KILLED
, CLD_DUMPED
));
1072 ret
= log_debug_errno(SYNTHETIC_ERRNO(EPROTO
), "Worker process died abnormally with signal %s.", signal_to_string(si
->si_status
));
1073 } else if (si
->si_status
!= EXIT_SUCCESS
) {
1074 /* If we received an error code via sd_notify(), use it */
1075 if (h
->worker_error_code
!= 0)
1076 ret
= log_debug_errno(h
->worker_error_code
, "Worker reported error code %s.", errno_to_name(h
->worker_error_code
));
1078 ret
= log_debug_errno(SYNTHETIC_ERRNO(EPROTO
), "Worker exited with exit code %i.", si
->si_status
);
1080 ret
= home_parse_worker_stdout(TAKE_FD(h
->worker_stdout_fd
), &hr
);
1082 h
->worker_stdout_fd
= safe_close(h
->worker_stdout_fd
);
1087 case HOME_FIXATING_FOR_ACTIVATION
:
1088 case HOME_FIXATING_FOR_ACQUIRE
:
1089 home_fixate_finish(h
, ret
, hr
);
1092 case HOME_ACTIVATING
:
1093 case HOME_ACTIVATING_FOR_ACQUIRE
:
1094 home_activate_finish(h
, ret
, hr
);
1097 case HOME_DEACTIVATING
:
1098 home_deactivate_finish(h
, ret
, hr
);
1102 home_locking_finish(h
, ret
, hr
);
1105 case HOME_UNLOCKING
:
1106 case HOME_UNLOCKING_FOR_ACQUIRE
:
1107 home_unlocking_finish(h
, ret
, hr
);
1111 home_create_finish(h
, ret
, hr
);
1115 home_remove_finish(h
, ret
, hr
);
1119 case HOME_UPDATING_WHILE_ACTIVE
:
1121 case HOME_RESIZING_WHILE_ACTIVE
:
1123 case HOME_PASSWD_WHILE_ACTIVE
:
1124 home_change_finish(h
, ret
, hr
);
1127 case HOME_AUTHENTICATING
:
1128 case HOME_AUTHENTICATING_WHILE_ACTIVE
:
1129 case HOME_AUTHENTICATING_FOR_ACQUIRE
:
1130 home_authenticating_finish(h
, ret
, hr
);
1134 assert_not_reached();
1140 static int home_start_work(Home
*h
, const char *verb
, UserRecord
*hr
, UserRecord
*secret
) {
1141 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
1142 _cleanup_(erase_and_freep
) char *formatted
= NULL
;
1143 _cleanup_close_
int stdin_fd
= -EBADF
, stdout_fd
= -EBADF
;
1151 if (h
->worker_pid
!= 0)
1154 assert(h
->worker_stdout_fd
< 0);
1155 assert(!h
->worker_event_source
);
1157 v
= json_variant_ref(hr
->json
);
1160 JsonVariant
*sub
= NULL
;
1162 sub
= json_variant_by_key(secret
->json
, "secret");
1166 r
= json_variant_set_field(&v
, "secret", sub
);
1171 r
= json_variant_format(v
, 0, &formatted
);
1175 stdin_fd
= acquire_data_fd(formatted
, strlen(formatted
), 0);
1179 log_debug("Sending to worker: %s", formatted
);
1181 stdout_fd
= memfd_create_wrapper("homework-stdout", MFD_CLOEXEC
| MFD_NOEXEC_SEAL
);
1185 r
= safe_fork_full("(sd-homework)",
1186 (int[]) { stdin_fd
, stdout_fd
, STDERR_FILENO
},
1188 FORK_RESET_SIGNALS
|FORK_CLOSE_ALL_FDS
|FORK_DEATHSIG
|FORK_REARRANGE_STDIO
|FORK_LOG
|FORK_REOPEN_LOG
, &pid
);
1192 _cleanup_free_
char *joined
= NULL
;
1193 const char *homework
, *suffix
, *unix_path
;
1197 suffix
= getenv("SYSTEMD_HOME_DEBUG_SUFFIX");
1199 joined
= strjoin("/run/systemd/home/notify.", suffix
);
1204 unix_path
= "/run/systemd/home/notify";
1206 if (setenv("NOTIFY_SOCKET", unix_path
, 1) < 0) {
1207 log_error_errno(errno
, "Failed to set $NOTIFY_SOCKET: %m");
1208 _exit(EXIT_FAILURE
);
1211 /* If we haven't locked the device yet, ask for a lock to be taken and be passed back to us via sd_notify(). */
1212 if (setenv("SYSTEMD_LUKS_LOCK", one_zero(h
->luks_lock_fd
< 0), 1) < 0) {
1213 log_error_errno(errno
, "Failed to set $SYSTEMD_LUKS_LOCK: %m");
1214 _exit(EXIT_FAILURE
);
1217 if (h
->manager
->default_storage
>= 0)
1218 if (setenv("SYSTEMD_HOME_DEFAULT_STORAGE", user_storage_to_string(h
->manager
->default_storage
), 1) < 0) {
1219 log_error_errno(errno
, "Failed to set $SYSTEMD_HOME_DEFAULT_STORAGE: %m");
1220 _exit(EXIT_FAILURE
);
1223 if (h
->manager
->default_file_system_type
)
1224 if (setenv("SYSTEMD_HOME_DEFAULT_FILE_SYSTEM_TYPE", h
->manager
->default_file_system_type
, 1) < 0) {
1225 log_error_errno(errno
, "Failed to set $SYSTEMD_HOME_DEFAULT_FILE_SYSTEM_TYPE: %m");
1226 _exit(EXIT_FAILURE
);
1229 r
= setenv_systemd_exec_pid(true);
1231 log_warning_errno(r
, "Failed to update $SYSTEMD_EXEC_PID, ignoring: %m");
1233 /* Allow overriding the homework path via an environment variable, to make debugging
1235 homework
= getenv("SYSTEMD_HOMEWORK_PATH") ?: SYSTEMD_HOMEWORK_PATH
;
1237 execl(homework
, homework
, verb
, NULL
);
1238 log_error_errno(errno
, "Failed to invoke %s: %m", homework
);
1239 _exit(EXIT_FAILURE
);
1242 r
= sd_event_add_child(h
->manager
->event
, &h
->worker_event_source
, pid
, WEXITED
, home_on_worker_process
, h
);
1246 (void) sd_event_source_set_description(h
->worker_event_source
, "worker");
1248 r
= hashmap_put(h
->manager
->homes_by_worker_pid
, PID_TO_PTR(pid
), h
);
1250 h
->worker_event_source
= sd_event_source_disable_unref(h
->worker_event_source
);
1254 h
->worker_stdout_fd
= TAKE_FD(stdout_fd
);
1255 h
->worker_pid
= pid
;
1256 h
->worker_error_code
= 0;
1261 static int home_ratelimit(Home
*h
, sd_bus_error
*error
) {
1266 ret
= user_record_ratelimit(h
->record
);
1270 if (h
->state
!= HOME_UNFIXATED
) {
1271 r
= home_save_record(h
);
1273 log_warning_errno(r
, "Failed to save updated record, ignoring: %m");
1279 n
= now(CLOCK_REALTIME
);
1280 t
= user_record_ratelimit_next_try(h
->record
);
1282 if (t
!= USEC_INFINITY
&& t
> n
)
1283 return sd_bus_error_setf(error
, BUS_ERROR_AUTHENTICATION_LIMIT_HIT
,
1284 "Too many login attempts, please try again in %s!",
1285 FORMAT_TIMESPAN(t
- n
, USEC_PER_SEC
));
1287 return sd_bus_error_set(error
, BUS_ERROR_AUTHENTICATION_LIMIT_HIT
, "Too many login attempts, please try again later.");
1293 static int home_fixate_internal(
1296 HomeState for_state
,
1297 sd_bus_error
*error
) {
1302 assert(IN_SET(for_state
, HOME_FIXATING
, HOME_FIXATING_FOR_ACTIVATION
, HOME_FIXATING_FOR_ACQUIRE
));
1304 r
= home_start_work(h
, "inspect", h
->record
, secret
);
1308 if (IN_SET(for_state
, HOME_FIXATING_FOR_ACTIVATION
, HOME_FIXATING_FOR_ACQUIRE
)) {
1309 /* Remember the secret data, since we need it for the activation again, later on. */
1310 user_record_unref(h
->secret
);
1311 h
->secret
= user_record_ref(secret
);
1314 home_set_state(h
, for_state
);
1318 int home_fixate(Home
*h
, UserRecord
*secret
, sd_bus_error
*error
) {
1323 switch (home_get_state(h
)) {
1325 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1329 case HOME_LINGERING
:
1331 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ALREADY_FIXATED
, "Home %s is already fixated.", h
->user_name
);
1332 case HOME_UNFIXATED
:
1335 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1338 r
= home_ratelimit(h
, error
);
1342 return home_fixate_internal(h
, secret
, HOME_FIXATING
, error
);
1345 static int home_activate_internal(Home
*h
, UserRecord
*secret
, HomeState for_state
, sd_bus_error
*error
) {
1349 assert(IN_SET(for_state
, HOME_ACTIVATING
, HOME_ACTIVATING_FOR_ACQUIRE
));
1351 r
= home_start_work(h
, "activate", h
->record
, secret
);
1355 home_set_state(h
, for_state
);
1359 int home_activate(Home
*h
, UserRecord
*secret
, sd_bus_error
*error
) {
1364 switch (home_get_state(h
)) {
1365 case HOME_UNFIXATED
:
1366 return home_fixate_internal(h
, secret
, HOME_FIXATING_FOR_ACTIVATION
, error
);
1368 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1370 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ALREADY_ACTIVE
, "Home %s is already active.", h
->user_name
);
1371 case HOME_LINGERING
:
1372 /* If we are lingering, i.e. active but are supposed to be deactivated, then cancel this
1373 * timer if the user explicitly asks us to be active */
1374 h
->retry_deactivate_event_source
= sd_event_source_disable_unref(h
->retry_deactivate_event_source
);
1377 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1382 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1385 r
= home_ratelimit(h
, error
);
1389 return home_activate_internal(h
, secret
, HOME_ACTIVATING
, error
);
1392 static int home_authenticate_internal(Home
*h
, UserRecord
*secret
, HomeState for_state
, sd_bus_error
*error
) {
1396 assert(IN_SET(for_state
, HOME_AUTHENTICATING
, HOME_AUTHENTICATING_WHILE_ACTIVE
, HOME_AUTHENTICATING_FOR_ACQUIRE
));
1398 r
= home_start_work(h
, "inspect", h
->record
, secret
);
1402 home_set_state(h
, for_state
);
1406 int home_authenticate(Home
*h
, UserRecord
*secret
, sd_bus_error
*error
) {
1412 state
= home_get_state(h
);
1415 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1417 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1418 case HOME_UNFIXATED
:
1422 case HOME_LINGERING
:
1425 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1428 r
= home_ratelimit(h
, error
);
1432 return home_authenticate_internal(h
, secret
, HOME_STATE_IS_ACTIVE(state
) ? HOME_AUTHENTICATING_WHILE_ACTIVE
: HOME_AUTHENTICATING
, error
);
1435 static int home_deactivate_internal(Home
*h
, bool force
, sd_bus_error
*error
) {
1440 home_unpin(h
); /* unpin so that we can deactivate */
1442 r
= home_start_work(h
, force
? "deactivate-force" : "deactivate", h
->record
, NULL
);
1444 /* Operation failed before it even started, reacquire pin fd, if state still dictates so */
1445 home_update_pin_fd(h
, _HOME_STATE_INVALID
);
1447 home_set_state(h
, HOME_DEACTIVATING
);
1451 /* Let's start a timer to retry deactivation in 15. We'll stop the timer once we manage to deactivate
1452 * the home directory again, or we start any other operation. */
1453 home_start_retry_deactivate(h
);
1458 int home_deactivate(Home
*h
, bool force
, sd_bus_error
*error
) {
1461 switch (home_get_state(h
)) {
1462 case HOME_UNFIXATED
:
1466 return sd_bus_error_setf(error
, BUS_ERROR_HOME_NOT_ACTIVE
, "Home %s not active.", h
->user_name
);
1468 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1470 case HOME_LINGERING
:
1473 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1476 return home_deactivate_internal(h
, force
, error
);
1479 int home_create(Home
*h
, UserRecord
*secret
, sd_bus_error
*error
) {
1484 switch (home_get_state(h
)) {
1485 case HOME_INACTIVE
: {
1488 if (h
->record
->storage
< 0)
1489 break; /* if no storage is defined we don't know what precisely to look for, hence
1490 * HOME_INACTIVE is OK in that case too. */
1492 t
= user_record_test_image_path(h
->record
);
1493 if (IN_SET(t
, USER_TEST_MAYBE
, USER_TEST_UNDEFINED
))
1494 break; /* And if the image path test isn't conclusive, let's also go on */
1496 if (IN_SET(t
, -EBADF
, -ENOTDIR
))
1497 return sd_bus_error_setf(error
, BUS_ERROR_HOME_EXISTS
, "Selected home image of user %s already exists or has wrong inode type.", h
->user_name
);
1499 return sd_bus_error_setf(error
, BUS_ERROR_HOME_EXISTS
, "Selected home image of user %s already exists.", h
->user_name
);
1501 case HOME_UNFIXATED
:
1503 return sd_bus_error_setf(error
, BUS_ERROR_HOME_EXISTS
, "Home of user %s already exists.", h
->user_name
);
1507 case HOME_LINGERING
:
1510 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "Home %s is currently being used, or an operation on home %s is currently being executed.", h
->user_name
, h
->user_name
);
1513 if (h
->record
->enforce_password_policy
== false)
1514 log_debug("Password quality check turned off for account, skipping.");
1516 r
= user_record_quality_check_password(h
->record
, secret
, error
);
1521 r
= home_start_work(h
, "create", h
->record
, secret
);
1525 home_set_state(h
, HOME_CREATING
);
1529 int home_remove(Home
*h
, sd_bus_error
*error
) {
1535 state
= home_get_state(h
);
1537 case HOME_ABSENT
: /* If the home directory is absent, then this is just like unregistering */
1538 return home_unregister(h
, error
);
1540 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1541 case HOME_UNFIXATED
:
1546 case HOME_LINGERING
:
1548 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "Home %s is currently being used, or an operation on home %s is currently being executed.", h
->user_name
, h
->user_name
);
1551 r
= home_start_work(h
, "remove", h
->record
, NULL
);
1555 home_set_state(h
, HOME_REMOVING
);
1559 static int user_record_extend_with_binding(UserRecord
*hr
, UserRecord
*with_binding
, UserRecordLoadFlags flags
, UserRecord
**ret
) {
1560 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
1561 _cleanup_(user_record_unrefp
) UserRecord
*nr
= NULL
;
1562 JsonVariant
*binding
;
1566 assert(with_binding
);
1569 assert_se(v
= json_variant_ref(hr
->json
));
1571 binding
= json_variant_by_key(with_binding
->json
, "binding");
1573 r
= json_variant_set_field(&v
, "binding", binding
);
1578 nr
= user_record_new();
1582 r
= user_record_load(nr
, v
, flags
);
1586 *ret
= TAKE_PTR(nr
);
1590 static int home_update_internal(
1595 sd_bus_error
*error
) {
1597 _cleanup_(user_record_unrefp
) UserRecord
*new_hr
= NULL
, *saved_secret
= NULL
, *signed_hr
= NULL
;
1604 if (!user_record_compatible(hr
, h
->record
))
1605 return sd_bus_error_set(error
, BUS_ERROR_HOME_RECORD_MISMATCH
, "Updated user record is not compatible with existing one.");
1606 c
= user_record_compare_last_change(hr
, h
->record
); /* refuse downgrades */
1608 return sd_bus_error_set(error
, BUS_ERROR_HOME_RECORD_DOWNGRADE
, "Refusing to update to older home record.");
1610 if (!secret
&& FLAGS_SET(hr
->mask
, USER_RECORD_SECRET
)) {
1611 r
= user_record_clone(hr
, USER_RECORD_EXTRACT_SECRET
|USER_RECORD_PERMISSIVE
, &saved_secret
);
1615 secret
= saved_secret
;
1618 r
= manager_verify_user_record(h
->manager
, hr
);
1621 case USER_RECORD_UNSIGNED
:
1622 if (h
->signed_locally
<= 0) /* If the existing record is not owned by us, don't accept an
1623 * unsigned new record. i.e. only implicitly sign new records
1624 * that where previously signed by us too. */
1625 return sd_bus_error_setf(error
, BUS_ERROR_HOME_RECORD_SIGNED
, "Home %s is signed and cannot be modified locally.", h
->user_name
);
1627 /* The updated record is not signed, then do so now */
1628 r
= manager_sign_user_record(h
->manager
, hr
, &signed_hr
, error
);
1635 case USER_RECORD_SIGNED_EXCLUSIVE
:
1636 case USER_RECORD_SIGNED
:
1637 case USER_RECORD_FOREIGN
:
1638 /* Has already been signed. Great! */
1646 r
= user_record_extend_with_binding(hr
, h
->record
, USER_RECORD_LOAD_MASK_SECRET
|USER_RECORD_PERMISSIVE
, &new_hr
);
1651 /* different payload but same lastChangeUSec field? That's not cool! */
1653 r
= user_record_masked_equal(new_hr
, h
->record
, USER_RECORD_REGULAR
|USER_RECORD_PRIVILEGED
|USER_RECORD_PER_MACHINE
);
1657 return sd_bus_error_set(error
, BUS_ERROR_HOME_RECORD_MISMATCH
, "Home record different but timestamp remained the same, refusing.");
1660 r
= home_start_work(h
, verb
, new_hr
, secret
);
1667 int home_update(Home
*h
, UserRecord
*hr
, sd_bus_error
*error
) {
1674 state
= home_get_state(h
);
1676 case HOME_UNFIXATED
:
1677 return sd_bus_error_setf(error
, BUS_ERROR_HOME_UNFIXATED
, "Home %s has not been fixated yet.", h
->user_name
);
1679 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1681 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1685 case HOME_LINGERING
:
1688 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1691 r
= home_ratelimit(h
, error
);
1695 r
= home_update_internal(h
, "update", hr
, NULL
, error
);
1699 home_set_state(h
, HOME_STATE_IS_ACTIVE(state
) ? HOME_UPDATING_WHILE_ACTIVE
: HOME_UPDATING
);
1703 int home_resize(Home
*h
,
1707 sd_bus_error
*error
) {
1709 _cleanup_(user_record_unrefp
) UserRecord
*c
= NULL
;
1715 state
= home_get_state(h
);
1717 case HOME_UNFIXATED
:
1718 return sd_bus_error_setf(error
, BUS_ERROR_HOME_UNFIXATED
, "Home %s has not been fixated yet.", h
->user_name
);
1720 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1722 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1726 case HOME_LINGERING
:
1729 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1732 r
= home_ratelimit(h
, error
);
1736 /* If the user didn't specify any size explicitly and rebalancing is on, then the disk size is
1737 * determined by automatic rebalancing and hence not user configured but determined by us and thus
1738 * applied anyway. */
1739 if (disk_size
== UINT64_MAX
&& h
->record
->rebalance_weight
!= REBALANCE_WEIGHT_OFF
)
1740 return sd_bus_error_set(error
, SD_BUS_ERROR_INVALID_ARGS
, "Disk size is being determined by automatic disk space rebalancing.");
1742 if (disk_size
== UINT64_MAX
|| disk_size
== h
->record
->disk_size
) {
1743 if (h
->record
->disk_size
== UINT64_MAX
)
1744 return sd_bus_error_set(error
, SD_BUS_ERROR_INVALID_ARGS
, "No disk size to resize to specified.");
1746 c
= user_record_ref(h
->record
); /* Shortcut if size is unspecified or matches the record */
1748 _cleanup_(user_record_unrefp
) UserRecord
*signed_c
= NULL
;
1750 if (h
->signed_locally
<= 0) /* Don't allow changing of records not signed only by us */
1751 return sd_bus_error_setf(error
, BUS_ERROR_HOME_RECORD_SIGNED
, "Home %s is signed and cannot be modified locally.", h
->user_name
);
1753 r
= user_record_clone(h
->record
, USER_RECORD_LOAD_REFUSE_SECRET
|USER_RECORD_PERMISSIVE
, &c
);
1757 r
= user_record_set_disk_size(c
, disk_size
);
1759 return sd_bus_error_setf(error
, BUS_ERROR_BAD_HOME_SIZE
, "Requested size for home %s out of acceptable range.", h
->user_name
);
1763 /* If user picked an explicit size, then turn off rebalancing, so that we don't undo what user chose */
1764 r
= user_record_set_rebalance_weight(c
, REBALANCE_WEIGHT_OFF
);
1768 r
= user_record_update_last_changed(c
, false);
1770 return sd_bus_error_setf(error
, BUS_ERROR_HOME_RECORD_MISMATCH
, "Record last change time of %s is newer than current time, cannot update.", h
->user_name
);
1774 r
= manager_sign_user_record(h
->manager
, c
, &signed_c
, error
);
1778 user_record_unref(c
);
1779 c
= TAKE_PTR(signed_c
);
1782 r
= home_update_internal(h
, automatic
? "resize-auto" : "resize", c
, secret
, error
);
1786 home_set_state(h
, HOME_STATE_IS_ACTIVE(state
) ? HOME_RESIZING_WHILE_ACTIVE
: HOME_RESIZING
);
1790 static int home_may_change_password(
1792 sd_bus_error
*error
) {
1798 r
= user_record_test_password_change_required(h
->record
);
1799 if (IN_SET(r
, -EKEYREVOKED
, -EOWNERDEAD
, -EKEYEXPIRED
, -ESTALE
))
1800 return 0; /* expired in some form, but changing is allowed */
1801 if (IN_SET(r
, -EKEYREJECTED
, -EROFS
))
1802 return sd_bus_error_setf(error
, SD_BUS_ERROR_ACCESS_DENIED
, "Expiration settings of account %s do not allow changing of password.", h
->user_name
);
1804 return log_error_errno(r
, "Failed to test password expiry: %m");
1806 return 0; /* not expired */
1809 int home_passwd(Home
*h
,
1810 UserRecord
*new_secret
,
1811 UserRecord
*old_secret
,
1812 sd_bus_error
*error
) {
1814 _cleanup_(user_record_unrefp
) UserRecord
*c
= NULL
, *merged_secret
= NULL
, *signed_c
= NULL
;
1820 if (h
->signed_locally
<= 0) /* Don't allow changing of records not signed only by us */
1821 return sd_bus_error_setf(error
, BUS_ERROR_HOME_RECORD_SIGNED
, "Home %s is signed and cannot be modified locally.", h
->user_name
);
1823 state
= home_get_state(h
);
1825 case HOME_UNFIXATED
:
1826 return sd_bus_error_setf(error
, BUS_ERROR_HOME_UNFIXATED
, "Home %s has not been fixated yet.", h
->user_name
);
1828 return sd_bus_error_setf(error
, BUS_ERROR_HOME_ABSENT
, "Home %s is currently missing or not plugged in.", h
->user_name
);
1830 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1834 case HOME_LINGERING
:
1837 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1840 r
= home_ratelimit(h
, error
);
1844 r
= home_may_change_password(h
, error
);
1848 r
= user_record_clone(h
->record
, USER_RECORD_LOAD_REFUSE_SECRET
|USER_RECORD_PERMISSIVE
, &c
);
1852 merged_secret
= user_record_new();
1856 r
= user_record_merge_secret(merged_secret
, old_secret
);
1860 r
= user_record_merge_secret(merged_secret
, new_secret
);
1864 if (!strv_isempty(new_secret
->password
)) {
1865 /* Update the password only if one is specified, otherwise let's just reuse the old password
1866 * data. This is useful as a way to propagate updated user records into the LUKS backends
1869 r
= user_record_make_hashed_password(c
, new_secret
->password
, /* extend = */ false);
1873 r
= user_record_set_password_change_now(c
, -1 /* remove */);
1878 r
= user_record_update_last_changed(c
, true);
1880 return sd_bus_error_setf(error
, BUS_ERROR_HOME_RECORD_MISMATCH
, "Record last change time of %s is newer than current time, cannot update.", h
->user_name
);
1884 r
= manager_sign_user_record(h
->manager
, c
, &signed_c
, error
);
1888 if (c
->enforce_password_policy
== false)
1889 log_debug("Password quality check turned off for account, skipping.");
1891 r
= user_record_quality_check_password(c
, merged_secret
, error
);
1896 r
= home_update_internal(h
, "passwd", signed_c
, merged_secret
, error
);
1900 home_set_state(h
, HOME_STATE_IS_ACTIVE(state
) ? HOME_PASSWD_WHILE_ACTIVE
: HOME_PASSWD
);
1904 int home_unregister(Home
*h
, sd_bus_error
*error
) {
1909 switch (home_get_state(h
)) {
1910 case HOME_UNFIXATED
:
1911 return sd_bus_error_setf(error
, BUS_ERROR_HOME_UNFIXATED
, "Home %s is not registered.", h
->user_name
);
1913 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
1919 case HOME_LINGERING
:
1921 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "Home %s is currently being used, or an operation on home %s is currently being executed.", h
->user_name
, h
->user_name
);
1924 r
= home_unlink_record(h
);
1928 /* And destroy the whole entry. The caller needs to be prepared for that. */
1933 int home_lock(Home
*h
, sd_bus_error
*error
) {
1938 switch (home_get_state(h
)) {
1939 case HOME_UNFIXATED
:
1943 return sd_bus_error_setf(error
, BUS_ERROR_HOME_NOT_ACTIVE
, "Home %s is not active.", h
->user_name
);
1945 return sd_bus_error_setf(error
, BUS_ERROR_HOME_LOCKED
, "Home %s is already locked.", h
->user_name
);
1947 case HOME_LINGERING
:
1950 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1953 r
= home_start_work(h
, "lock", h
->record
, NULL
);
1957 home_set_state(h
, HOME_LOCKING
);
1961 static int home_unlock_internal(Home
*h
, UserRecord
*secret
, HomeState for_state
, sd_bus_error
*error
) {
1965 assert(IN_SET(for_state
, HOME_UNLOCKING
, HOME_UNLOCKING_FOR_ACQUIRE
));
1967 r
= home_start_work(h
, "unlock", h
->record
, secret
);
1971 home_set_state(h
, for_state
);
1975 int home_unlock(Home
*h
, UserRecord
*secret
, sd_bus_error
*error
) {
1979 r
= home_ratelimit(h
, error
);
1983 switch (home_get_state(h
)) {
1984 case HOME_UNFIXATED
:
1988 case HOME_LINGERING
:
1990 return sd_bus_error_setf(error
, BUS_ERROR_HOME_NOT_LOCKED
, "Home %s is not locked.", h
->user_name
);
1994 return sd_bus_error_setf(error
, BUS_ERROR_HOME_BUSY
, "An operation on home %s is currently being executed.", h
->user_name
);
1997 return home_unlock_internal(h
, secret
, HOME_UNLOCKING
, error
);
2000 HomeState
home_get_state(Home
*h
) {
2004 /* When the state field is initialized, it counts. */
2008 /* Otherwise, let's see if the home directory is mounted. If so, we assume for sure the home
2009 * directory is active */
2010 if (user_record_test_home_directory(h
->record
) == USER_TEST_MOUNTED
)
2011 return h
->retry_deactivate_event_source
? HOME_LINGERING
: HOME_ACTIVE
;
2013 /* And if we see the image being gone, we report this as absent */
2014 r
= user_record_test_image_path(h
->record
);
2015 if (r
== USER_TEST_ABSENT
)
2017 if (r
== USER_TEST_DIRTY
)
2020 /* And for all other cases we return "inactive". */
2021 return HOME_INACTIVE
;
2024 void home_process_notify(Home
*h
, char **l
, int fd
) {
2025 _cleanup_close_
int taken_fd
= TAKE_FD(fd
);
2032 e
= strv_env_get(l
, "SYSTEMD_LUKS_LOCK_FD");
2034 r
= parse_boolean(e
);
2036 return (void) log_debug_errno(r
, "Failed to parse SYSTEMD_LUKS_LOCK_FD value: %m");
2039 return (void) log_debug("Got notify message with SYSTEMD_LUKS_LOCK_FD=1 but no fd passed, ignoring: %m");
2041 close_and_replace(h
->luks_lock_fd
, taken_fd
);
2043 log_debug("Successfully acquired LUKS lock fd from worker.");
2045 /* Immediately check if we actually want to keep it */
2046 home_maybe_close_luks_lock_fd(h
, _HOME_STATE_INVALID
);
2049 return (void) log_debug("Got notify message with SYSTEMD_LUKS_LOCK_FD=0 but fd passed, ignoring: %m");
2051 h
->luks_lock_fd
= safe_close(h
->luks_lock_fd
);
2057 e
= strv_env_get(l
, "ERRNO");
2059 return (void) log_debug("Got notify message lacking both ERRNO= and SYSTEMD_LUKS_LOCK_FD= field, ignoring.");
2061 r
= safe_atoi(e
, &error
);
2063 return (void) log_debug_errno(r
, "Failed to parse received error number, ignoring: %s", e
);
2065 return (void) log_debug("Error number is out of range: %i", error
);
2067 h
->worker_error_code
= error
;
2070 int home_killall(Home
*h
) {
2071 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2072 _cleanup_free_
char *unit
= NULL
;
2077 if (!uid_is_valid(h
->uid
))
2080 assert(h
->uid
> 0); /* We never should be UID 0 */
2082 /* Let's kill everything matching the specified UID */
2083 r
= safe_fork("(sd-killer)",
2084 FORK_RESET_SIGNALS
|FORK_CLOSE_ALL_FDS
|FORK_DEATHSIG
|FORK_WAIT
|FORK_LOG
|FORK_REOPEN_LOG
,
2093 gid
= user_record_gid(h
->record
);
2094 if (setresgid(gid
, gid
, gid
) < 0) {
2095 log_error_errno(errno
, "Failed to change GID to " GID_FMT
": %m", gid
);
2096 _exit(EXIT_FAILURE
);
2099 if (setgroups(0, NULL
) < 0) {
2100 log_error_errno(errno
, "Failed to reset auxiliary groups list: %m");
2101 _exit(EXIT_FAILURE
);
2104 if (setresuid(h
->uid
, h
->uid
, h
->uid
) < 0) {
2105 log_error_errno(errno
, "Failed to change UID to " UID_FMT
": %m", h
->uid
);
2106 _exit(EXIT_FAILURE
);
2109 if (kill(-1, SIGKILL
) < 0) {
2110 log_error_errno(errno
, "Failed to kill all processes of UID " UID_FMT
": %m", h
->uid
);
2111 _exit(EXIT_FAILURE
);
2114 _exit(EXIT_SUCCESS
);
2117 /* Let's also kill everything in the user's slice */
2118 if (asprintf(&unit
, "user-" UID_FMT
".slice", h
->uid
) < 0)
2121 r
= bus_call_method(h
->manager
->bus
, bus_systemd_mgr
, "KillUnit", &error
, NULL
, "ssi", unit
, "all", SIGKILL
);
2123 log_full_errno(sd_bus_error_has_name(&error
, BUS_ERROR_NO_SUCH_UNIT
) ? LOG_DEBUG
: LOG_WARNING
,
2124 r
, "Failed to kill login processes of user, ignoring: %s", bus_error_message(&error
, r
));
2129 static int home_get_disk_status_luks(
2132 uint64_t *ret_disk_size
,
2133 uint64_t *ret_disk_usage
,
2134 uint64_t *ret_disk_free
,
2135 uint64_t *ret_disk_ceiling
,
2136 uint64_t *ret_disk_floor
,
2137 statfs_f_type_t
*ret_fstype
,
2138 mode_t
*ret_access_mode
) {
2140 uint64_t disk_size
= UINT64_MAX
, disk_usage
= UINT64_MAX
, disk_free
= UINT64_MAX
,
2141 disk_ceiling
= UINT64_MAX
, disk_floor
= UINT64_MAX
,
2142 stat_used
= UINT64_MAX
, fs_size
= UINT64_MAX
, header_size
= 0;
2143 mode_t access_mode
= MODE_INVALID
;
2144 statfs_f_type_t fstype
= 0;
2152 if (state
!= HOME_ABSENT
) {
2155 ip
= user_record_image_path(h
->record
);
2157 if (stat(ip
, &st
) < 0)
2158 log_debug_errno(errno
, "Failed to stat() %s, ignoring: %m", ip
);
2159 else if (S_ISREG(st
.st_mode
)) {
2160 _cleanup_free_
char *parent
= NULL
;
2162 disk_size
= st
.st_size
;
2163 stat_used
= st
.st_blocks
* 512;
2165 r
= path_extract_directory(ip
, &parent
);
2167 return log_error_errno(r
, "Failed to extract parent directory from image path '%s': %m", ip
);
2169 if (statfs(parent
, &sfs
) < 0)
2170 log_debug_errno(errno
, "Failed to statfs() %s, ignoring: %m", parent
);
2172 disk_ceiling
= stat_used
+ sfs
.f_bsize
* sfs
.f_bavail
;
2174 } else if (S_ISBLK(st
.st_mode
)) {
2175 _cleanup_free_
char *szbuf
= NULL
;
2176 char p
[SYS_BLOCK_PATH_MAX("/size")];
2178 /* Let's read the size off sysfs, so that we don't have to open the device */
2179 xsprintf_sys_block_path(p
, "/size", st
.st_rdev
);
2180 r
= read_one_line_file(p
, &szbuf
);
2182 log_debug_errno(r
, "Failed to read %s, ignoring: %m", p
);
2186 r
= safe_atou64(szbuf
, &sz
);
2188 log_debug_errno(r
, "Failed to parse %s, ignoring: %s", p
, szbuf
);
2190 disk_size
= sz
* 512;
2193 log_debug("Image path is not a block device or regular file, not able to acquire size.");
2197 if (!HOME_STATE_IS_ACTIVE(state
))
2200 hd
= user_record_home_directory(h
->record
);
2204 if (stat(hd
, &st
) < 0) {
2205 log_debug_errno(errno
, "Failed to stat() %s, ignoring: %m", hd
);
2209 r
= stat_verify_directory(&st
);
2211 log_debug_errno(r
, "Home directory %s is not a directory, ignoring: %m", hd
);
2215 access_mode
= st
.st_mode
& 07777;
2217 if (statfs(hd
, &sfs
) < 0) {
2218 log_debug_errno(errno
, "Failed to statfs() %s, ignoring: %m", hd
);
2222 fstype
= sfs
.f_type
;
2224 disk_free
= sfs
.f_bsize
* sfs
.f_bavail
;
2225 fs_size
= sfs
.f_bsize
* sfs
.f_blocks
;
2226 if (disk_size
!= UINT64_MAX
&& disk_size
> fs_size
)
2227 header_size
= disk_size
- fs_size
;
2229 /* We take a perspective from the user here (as opposed to from the host): the used disk space is the
2230 * difference from the limit and what's free. This makes a difference if sparse mode is not used: in
2231 * that case the image is pre-allocated and thus appears all used from the host PoV but is not used
2232 * up at all yet from the user's PoV.
2234 * That said, we use the stat() reported loopback file size as upper boundary: our footprint can
2235 * never be larger than what we take up on the lowest layers. */
2237 if (disk_size
!= UINT64_MAX
&& disk_size
> disk_free
) {
2238 disk_usage
= disk_size
- disk_free
;
2240 if (stat_used
!= UINT64_MAX
&& disk_usage
> stat_used
)
2241 disk_usage
= stat_used
;
2243 disk_usage
= stat_used
;
2245 /* If we have the magic, determine floor preferably by magic */
2246 disk_floor
= minimal_size_by_fs_magic(sfs
.f_type
) + header_size
;
2249 /* If we don't know the magic, go by file system name */
2250 if (disk_floor
== UINT64_MAX
)
2251 disk_floor
= minimal_size_by_fs_name(user_record_file_system_type(h
->record
));
2254 *ret_disk_size
= disk_size
;
2256 *ret_disk_usage
= disk_usage
;
2258 *ret_disk_free
= disk_free
;
2259 if (ret_disk_ceiling
)
2260 *ret_disk_ceiling
= disk_ceiling
;
2262 *ret_disk_floor
= disk_floor
;
2264 *ret_fstype
= fstype
;
2265 if (ret_access_mode
)
2266 *ret_access_mode
= access_mode
;
2271 static int home_get_disk_status_directory(
2274 uint64_t *ret_disk_size
,
2275 uint64_t *ret_disk_usage
,
2276 uint64_t *ret_disk_free
,
2277 uint64_t *ret_disk_ceiling
,
2278 uint64_t *ret_disk_floor
,
2279 statfs_f_type_t
*ret_fstype
,
2280 mode_t
*ret_access_mode
) {
2282 uint64_t disk_size
= UINT64_MAX
, disk_usage
= UINT64_MAX
, disk_free
= UINT64_MAX
,
2283 disk_ceiling
= UINT64_MAX
, disk_floor
= UINT64_MAX
;
2284 mode_t access_mode
= MODE_INVALID
;
2285 statfs_f_type_t fstype
= 0;
2288 const char *path
= NULL
;
2293 if (HOME_STATE_IS_ACTIVE(state
))
2294 path
= user_record_home_directory(h
->record
);
2297 if (state
== HOME_ABSENT
)
2300 path
= user_record_image_path(h
->record
);
2306 if (statfs(path
, &sfs
) < 0)
2307 log_debug_errno(errno
, "Failed to statfs() %s, ignoring: %m", path
);
2309 disk_free
= sfs
.f_bsize
* sfs
.f_bavail
;
2310 disk_size
= sfs
.f_bsize
* sfs
.f_blocks
;
2312 /* We don't initialize disk_usage from statfs() data here, since the device is likely not used
2313 * by us alone, and disk_usage should only reflect our own use. */
2315 fstype
= sfs
.f_type
;
2318 if (IN_SET(h
->record
->storage
, USER_CLASSIC
, USER_DIRECTORY
, USER_SUBVOLUME
)) {
2320 r
= btrfs_is_subvol(path
);
2322 log_debug_errno(r
, "Failed to determine whether %s is a btrfs subvolume: %m", path
);
2326 r
= btrfs_subvol_get_subtree_quota(path
, 0, &qi
);
2328 log_debug_errno(r
, "Failed to query btrfs subtree quota, ignoring: %m");
2330 disk_usage
= qi
.referenced
;
2332 if (disk_free
!= UINT64_MAX
) {
2333 disk_ceiling
= qi
.referenced
+ disk_free
;
2335 if (disk_size
!= UINT64_MAX
&& disk_ceiling
> disk_size
)
2336 disk_ceiling
= disk_size
;
2339 if (qi
.referenced_max
!= UINT64_MAX
) {
2340 if (disk_size
!= UINT64_MAX
)
2341 disk_size
= MIN(qi
.referenced_max
, disk_size
);
2343 disk_size
= qi
.referenced_max
;
2346 if (disk_size
!= UINT64_MAX
) {
2347 if (disk_size
> disk_usage
)
2348 disk_free
= disk_size
- disk_usage
;
2358 if (IN_SET(h
->record
->storage
, USER_CLASSIC
, USER_DIRECTORY
, USER_FSCRYPT
)) {
2359 r
= quotactl_path(QCMD_FIXED(Q_GETQUOTA
, USRQUOTA
), path
, h
->uid
, &req
);
2361 if (ERRNO_IS_NOT_SUPPORTED(r
)) {
2362 log_debug_errno(r
, "No UID quota support on %s.", path
);
2367 log_debug_errno(r
, "Failed to query disk quota for UID " UID_FMT
": %m", h
->uid
);
2371 disk_usage
= 0; /* No record of this user? then nothing was used */
2373 if (FLAGS_SET(req
.dqb_valid
, QIF_SPACE
) && disk_free
!= UINT64_MAX
) {
2374 disk_ceiling
= req
.dqb_curspace
+ disk_free
;
2376 if (disk_size
!= UINT64_MAX
&& disk_ceiling
> disk_size
)
2377 disk_ceiling
= disk_size
;
2380 if (FLAGS_SET(req
.dqb_valid
, QIF_BLIMITS
)) {
2383 /* Take the minimum of the quota and the available disk space here */
2384 q
= req
.dqb_bhardlimit
* QIF_DQBLKSIZE
;
2385 if (disk_size
!= UINT64_MAX
)
2386 disk_size
= MIN(disk_size
, q
);
2390 if (FLAGS_SET(req
.dqb_valid
, QIF_SPACE
)) {
2391 disk_usage
= req
.dqb_curspace
;
2393 if (disk_size
!= UINT64_MAX
) {
2394 if (disk_size
> disk_usage
)
2395 disk_free
= disk_size
- disk_usage
;
2405 *ret_disk_size
= disk_size
;
2407 *ret_disk_usage
= disk_usage
;
2409 *ret_disk_free
= disk_free
;
2410 if (ret_disk_ceiling
)
2411 *ret_disk_ceiling
= disk_ceiling
;
2413 *ret_disk_floor
= disk_floor
;
2415 *ret_fstype
= fstype
;
2416 if (ret_access_mode
)
2417 *ret_access_mode
= access_mode
;
2422 static int home_get_disk_status_internal(
2425 uint64_t *ret_disk_size
,
2426 uint64_t *ret_disk_usage
,
2427 uint64_t *ret_disk_free
,
2428 uint64_t *ret_disk_ceiling
,
2429 uint64_t *ret_disk_floor
,
2430 statfs_f_type_t
*ret_fstype
,
2431 mode_t
*ret_access_mode
) {
2436 switch (h
->record
->storage
) {
2439 return home_get_disk_status_luks(h
, state
, ret_disk_size
, ret_disk_usage
, ret_disk_free
, ret_disk_ceiling
, ret_disk_floor
, ret_fstype
, ret_access_mode
);
2442 case USER_DIRECTORY
:
2443 case USER_SUBVOLUME
:
2446 return home_get_disk_status_directory(h
, state
, ret_disk_size
, ret_disk_usage
, ret_disk_free
, ret_disk_ceiling
, ret_disk_floor
, ret_fstype
, ret_access_mode
);
2452 *ret_disk_size
= UINT64_MAX
;
2454 *ret_disk_usage
= UINT64_MAX
;
2456 *ret_disk_free
= UINT64_MAX
;
2457 if (ret_disk_ceiling
)
2458 *ret_disk_ceiling
= UINT64_MAX
;
2460 *ret_disk_floor
= UINT64_MAX
;
2463 if (ret_access_mode
)
2464 *ret_access_mode
= MODE_INVALID
;
2470 int home_get_disk_status(
2472 uint64_t *ret_disk_size
,
2473 uint64_t *ret_disk_usage
,
2474 uint64_t *ret_disk_free
,
2475 uint64_t *ret_disk_ceiling
,
2476 uint64_t *ret_disk_floor
,
2477 statfs_f_type_t
*ret_fstype
,
2478 mode_t
*ret_access_mode
) {
2482 return home_get_disk_status_internal(
2494 int home_augment_status(
2496 UserRecordLoadFlags flags
,
2499 uint64_t disk_size
= UINT64_MAX
, disk_usage
= UINT64_MAX
, disk_free
= UINT64_MAX
, disk_ceiling
= UINT64_MAX
, disk_floor
= UINT64_MAX
;
2500 _cleanup_(json_variant_unrefp
) JsonVariant
*j
= NULL
, *v
= NULL
, *m
= NULL
, *status
= NULL
;
2501 _cleanup_(user_record_unrefp
) UserRecord
*ur
= NULL
;
2502 statfs_f_type_t magic
;
2512 /* We are supposed to add this, this can't be on hence. */
2513 assert(!FLAGS_SET(flags
, USER_RECORD_STRIP_STATUS
));
2515 r
= sd_id128_get_machine(&id
);
2519 state
= home_get_state(h
);
2521 r
= home_get_disk_status_internal(
2533 fstype
= fs_type_to_string(magic
);
2535 if (disk_floor
== UINT64_MAX
|| (disk_usage
!= UINT64_MAX
&& disk_floor
< disk_usage
))
2536 disk_floor
= disk_usage
;
2537 if (disk_floor
== UINT64_MAX
|| disk_floor
< USER_DISK_SIZE_MIN
)
2538 disk_floor
= USER_DISK_SIZE_MIN
;
2539 if (disk_ceiling
== UINT64_MAX
|| disk_ceiling
> USER_DISK_SIZE_MAX
)
2540 disk_ceiling
= USER_DISK_SIZE_MAX
;
2542 r
= json_build(&status
,
2544 JSON_BUILD_PAIR("state", JSON_BUILD_STRING(home_state_to_string(state
))),
2545 JSON_BUILD_PAIR("service", JSON_BUILD_CONST_STRING("io.systemd.Home")),
2546 JSON_BUILD_PAIR_CONDITION(disk_size
!= UINT64_MAX
, "diskSize", JSON_BUILD_UNSIGNED(disk_size
)),
2547 JSON_BUILD_PAIR_CONDITION(disk_usage
!= UINT64_MAX
, "diskUsage", JSON_BUILD_UNSIGNED(disk_usage
)),
2548 JSON_BUILD_PAIR_CONDITION(disk_free
!= UINT64_MAX
, "diskFree", JSON_BUILD_UNSIGNED(disk_free
)),
2549 JSON_BUILD_PAIR_CONDITION(disk_ceiling
!= UINT64_MAX
, "diskCeiling", JSON_BUILD_UNSIGNED(disk_ceiling
)),
2550 JSON_BUILD_PAIR_CONDITION(disk_floor
!= UINT64_MAX
, "diskFloor", JSON_BUILD_UNSIGNED(disk_floor
)),
2551 JSON_BUILD_PAIR_CONDITION(h
->signed_locally
>= 0, "signedLocally", JSON_BUILD_BOOLEAN(h
->signed_locally
)),
2552 JSON_BUILD_PAIR_CONDITION(fstype
, "fileSystemType", JSON_BUILD_STRING(fstype
)),
2553 JSON_BUILD_PAIR_CONDITION(access_mode
!= MODE_INVALID
, "accessMode", JSON_BUILD_UNSIGNED(access_mode
))
2558 j
= json_variant_ref(h
->record
->json
);
2559 v
= json_variant_ref(json_variant_by_key(j
, "status"));
2560 m
= json_variant_ref(json_variant_by_key(v
, SD_ID128_TO_STRING(id
)));
2562 r
= json_variant_filter(&m
, STRV_MAKE("diskSize", "diskUsage", "diskFree", "diskCeiling", "diskFloor", "signedLocally"));
2566 r
= json_variant_merge(&m
, status
);
2570 r
= json_variant_set_field(&v
, SD_ID128_TO_STRING(id
), m
);
2574 r
= json_variant_set_field(&j
, "status", v
);
2578 ur
= user_record_new();
2582 r
= user_record_load(ur
, j
, flags
);
2587 FLAGS_SET(h
->record
->mask
, USER_RECORD_PRIVILEGED
) &&
2588 !FLAGS_SET(ur
->mask
, USER_RECORD_PRIVILEGED
);
2590 *ret
= TAKE_PTR(ur
);
2594 static int on_home_ref_eof(sd_event_source
*s
, int fd
, uint32_t revents
, void *userdata
) {
2595 _cleanup_(operation_unrefp
) Operation
*o
= NULL
;
2596 Home
*h
= ASSERT_PTR(userdata
);
2600 if (h
->ref_event_source_please_suspend
== s
)
2601 h
->ref_event_source_please_suspend
= sd_event_source_disable_unref(h
->ref_event_source_please_suspend
);
2603 if (h
->ref_event_source_dont_suspend
== s
)
2604 h
->ref_event_source_dont_suspend
= sd_event_source_disable_unref(h
->ref_event_source_dont_suspend
);
2606 if (h
->ref_event_source_dont_suspend
|| h
->ref_event_source_please_suspend
)
2609 log_info("Got notification that all sessions of user %s ended, deactivating automatically.", h
->user_name
);
2611 o
= operation_new(OPERATION_PIPE_EOF
, NULL
);
2617 home_schedule_operation(h
, o
, NULL
);
2621 int home_create_fifo(Home
*h
, bool please_suspend
) {
2622 _cleanup_close_
int ret_fd
= -EBADF
;
2623 sd_event_source
**ss
;
2624 const char *fn
, *suffix
;
2629 if (please_suspend
) {
2630 suffix
= ".please-suspend";
2631 ss
= &h
->ref_event_source_please_suspend
;
2633 suffix
= ".dont-suspend";
2634 ss
= &h
->ref_event_source_dont_suspend
;
2637 fn
= strjoina("/run/systemd/home/", h
->user_name
, suffix
);
2640 _cleanup_close_
int ref_fd
= -EBADF
;
2642 (void) mkdir("/run/systemd/home/", 0755);
2643 if (mkfifo(fn
, 0600) < 0 && errno
!= EEXIST
)
2644 return log_error_errno(errno
, "Failed to create FIFO %s: %m", fn
);
2646 ref_fd
= open(fn
, O_RDONLY
|O_CLOEXEC
|O_NONBLOCK
);
2648 return log_error_errno(errno
, "Failed to open FIFO %s for reading: %m", fn
);
2650 r
= sd_event_add_io(h
->manager
->event
, ss
, ref_fd
, 0, on_home_ref_eof
, h
);
2652 return log_error_errno(r
, "Failed to allocate reference FIFO event source: %m");
2654 (void) sd_event_source_set_description(*ss
, "acquire-ref");
2656 r
= sd_event_source_set_priority(*ss
, SD_EVENT_PRIORITY_IDLE
-1);
2660 r
= sd_event_source_set_io_fd_own(*ss
, true);
2662 return log_error_errno(r
, "Failed to pass ownership of FIFO event fd to event source: %m");
2667 ret_fd
= open(fn
, O_WRONLY
|O_CLOEXEC
|O_NONBLOCK
);
2669 return log_error_errno(errno
, "Failed to open FIFO %s for writing: %m", fn
);
2671 return TAKE_FD(ret_fd
);
2674 static int home_dispatch_acquire(Home
*h
, Operation
*o
) {
2675 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2676 int (*call
)(Home
*h
, UserRecord
*secret
, HomeState for_state
, sd_bus_error
*error
) = NULL
;
2677 HomeState for_state
;
2682 assert(o
->type
== OPERATION_ACQUIRE
);
2684 switch (home_get_state(h
)) {
2686 case HOME_UNFIXATED
:
2687 for_state
= HOME_FIXATING_FOR_ACQUIRE
;
2688 call
= home_fixate_internal
;
2692 r
= sd_bus_error_setf(&error
, BUS_ERROR_HOME_ABSENT
,
2693 "Home %s is currently missing or not plugged in.", h
->user_name
);
2698 for_state
= HOME_ACTIVATING_FOR_ACQUIRE
;
2699 call
= home_activate_internal
;
2703 case HOME_LINGERING
:
2704 for_state
= HOME_AUTHENTICATING_FOR_ACQUIRE
;
2705 call
= home_authenticate_internal
;
2709 for_state
= HOME_UNLOCKING_FOR_ACQUIRE
;
2710 call
= home_unlock_internal
;
2714 /* All other cases means we are currently executing an operation, which means the job remains
2719 assert(!h
->current_operation
);
2721 r
= home_ratelimit(h
, &error
);
2723 r
= call(h
, o
->secret
, for_state
, &error
);
2726 if (r
!= 0) /* failure or completed */
2727 operation_result(o
, r
, &error
);
2729 h
->current_operation
= operation_ref(o
);
2734 static int home_dispatch_release(Home
*h
, Operation
*o
) {
2735 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2740 assert(o
->type
== OPERATION_RELEASE
);
2742 if (h
->ref_event_source_dont_suspend
|| h
->ref_event_source_please_suspend
)
2743 /* If there's now a reference again, then let's abort the release attempt */
2744 r
= sd_bus_error_setf(&error
, BUS_ERROR_HOME_BUSY
, "Home %s is currently referenced.", h
->user_name
);
2746 switch (home_get_state(h
)) {
2748 case HOME_UNFIXATED
:
2756 r
= sd_bus_error_setf(&error
, BUS_ERROR_HOME_LOCKED
, "Home %s is currently locked.", h
->user_name
);
2760 case HOME_LINGERING
:
2761 r
= home_deactivate_internal(h
, false, &error
);
2765 /* All other cases means we are currently executing an operation, which means the job remains
2771 assert(!h
->current_operation
);
2773 if (r
!= 0) /* failure or completed */
2774 operation_result(o
, r
, &error
);
2776 h
->current_operation
= operation_ref(o
);
2781 static int home_dispatch_lock_all(Home
*h
, Operation
*o
) {
2782 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2787 assert(o
->type
== OPERATION_LOCK_ALL
);
2789 switch (home_get_state(h
)) {
2791 case HOME_UNFIXATED
:
2795 log_info("Home %s is not active, no locking necessary.", h
->user_name
);
2800 log_info("Home %s is already locked.", h
->user_name
);
2805 case HOME_LINGERING
:
2806 log_info("Locking home %s.", h
->user_name
);
2807 r
= home_lock(h
, &error
);
2811 /* All other cases means we are currently executing an operation, which means the job remains
2816 assert(!h
->current_operation
);
2818 if (r
!= 0) /* failure or completed */
2819 operation_result(o
, r
, &error
);
2821 h
->current_operation
= operation_ref(o
);
2826 static int home_dispatch_deactivate_all(Home
*h
, Operation
*o
) {
2827 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2832 assert(o
->type
== OPERATION_DEACTIVATE_ALL
);
2834 switch (home_get_state(h
)) {
2836 case HOME_UNFIXATED
:
2840 log_info("Home %s is already deactivated.", h
->user_name
);
2845 log_info("Home %s is currently locked, not deactivating.", h
->user_name
);
2850 case HOME_LINGERING
:
2851 log_info("Deactivating home %s.", h
->user_name
);
2852 r
= home_deactivate_internal(h
, false, &error
);
2856 /* All other cases means we are currently executing an operation, which means the job remains
2861 assert(!h
->current_operation
);
2863 if (r
!= 0) /* failure or completed */
2864 operation_result(o
, r
, &error
);
2866 h
->current_operation
= operation_ref(o
);
2871 static int home_dispatch_pipe_eof(Home
*h
, Operation
*o
) {
2872 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2877 assert(o
->type
== OPERATION_PIPE_EOF
);
2879 if (h
->ref_event_source_please_suspend
|| h
->ref_event_source_dont_suspend
)
2880 return 1; /* Hmm, there's a reference again, let's cancel this */
2882 switch (home_get_state(h
)) {
2884 case HOME_UNFIXATED
:
2888 log_info("Home %s already deactivated, no automatic deactivation needed.", h
->user_name
);
2891 case HOME_DEACTIVATING
:
2892 log_info("Home %s is already being deactivated, automatic deactivated unnecessary.", h
->user_name
);
2896 case HOME_LINGERING
:
2897 r
= home_deactivate_internal(h
, false, &error
);
2899 log_warning_errno(r
, "Failed to deactivate %s, ignoring: %s", h
->user_name
, bus_error_message(&error
, r
));
2904 /* If the device is locked or any operation is being executed, let's leave this pending */
2908 /* Note that we don't call operation_fail() or operation_success() here, because this kind of
2909 * operation has no message associated with it, and thus there's no need to propagate success. */
2911 assert(!o
->message
);
2915 static int home_dispatch_deactivate_force(Home
*h
, Operation
*o
) {
2916 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2921 assert(o
->type
== OPERATION_DEACTIVATE_FORCE
);
2923 switch (home_get_state(h
)) {
2925 case HOME_UNFIXATED
:
2929 log_debug("Home %s already deactivated, no forced deactivation due to unplug needed.", h
->user_name
);
2932 case HOME_DEACTIVATING
:
2933 log_debug("Home %s is already being deactivated, forced deactivation due to unplug unnecessary.", h
->user_name
);
2938 case HOME_LINGERING
:
2939 r
= home_deactivate_internal(h
, true, &error
);
2941 log_warning_errno(r
, "Failed to forcibly deactivate %s, ignoring: %s", h
->user_name
, bus_error_message(&error
, r
));
2945 /* If any operation is being executed, let's leave this pending */
2949 /* Note that we don't call operation_fail() or operation_success() here, because this kind of
2950 * operation has no message associated with it, and thus there's no need to propagate success. */
2952 assert(!o
->message
);
2956 static int on_pending(sd_event_source
*s
, void *userdata
) {
2957 Home
*h
= ASSERT_PTR(userdata
);
2963 o
= ordered_set_first(h
->pending_operations
);
2965 static int (* const operation_table
[_OPERATION_MAX
])(Home
*h
, Operation
*o
) = {
2966 [OPERATION_ACQUIRE
] = home_dispatch_acquire
,
2967 [OPERATION_RELEASE
] = home_dispatch_release
,
2968 [OPERATION_LOCK_ALL
] = home_dispatch_lock_all
,
2969 [OPERATION_DEACTIVATE_ALL
] = home_dispatch_deactivate_all
,
2970 [OPERATION_PIPE_EOF
] = home_dispatch_pipe_eof
,
2971 [OPERATION_DEACTIVATE_FORCE
] = home_dispatch_deactivate_force
,
2974 assert(operation_table
[o
->type
]);
2975 r
= operation_table
[o
->type
](h
, o
);
2977 /* The operation completed, let's remove it from the pending list, and exit while
2978 * leaving the event source enabled as it is. */
2979 assert_se(ordered_set_remove(h
->pending_operations
, o
) == o
);
2985 /* Nothing to do anymore, let's turn off this event source */
2986 r
= sd_event_source_set_enabled(s
, SD_EVENT_OFF
);
2988 return log_error_errno(r
, "Failed to disable event source: %m");
2990 /* No operations pending anymore, maybe this is a good time to trigger a rebalancing */
2991 manager_reschedule_rebalance(h
->manager
);
2995 int home_schedule_operation(Home
*h
, Operation
*o
, sd_bus_error
*error
) {
3001 if (ordered_set_size(h
->pending_operations
) >= PENDING_OPERATIONS_MAX
)
3002 return sd_bus_error_set(error
, BUS_ERROR_TOO_MANY_OPERATIONS
, "Too many client operations requested");
3004 r
= ordered_set_ensure_put(&h
->pending_operations
, &operation_hash_ops
, o
);
3011 if (!h
->pending_event_source
) {
3012 r
= sd_event_add_defer(h
->manager
->event
, &h
->pending_event_source
, on_pending
, h
);
3014 return log_error_errno(r
, "Failed to allocate pending defer event source: %m");
3016 (void) sd_event_source_set_description(h
->pending_event_source
, "pending");
3018 r
= sd_event_source_set_priority(h
->pending_event_source
, SD_EVENT_PRIORITY_IDLE
);
3023 r
= sd_event_source_set_enabled(h
->pending_event_source
, SD_EVENT_ON
);
3025 return log_error_errno(r
, "Failed to trigger pending event source: %m");
3030 static int home_get_image_path_seat(Home
*h
, char **ret
) {
3031 _cleanup_(sd_device_unrefp
) sd_device
*d
= NULL
;
3032 _cleanup_free_
char *c
= NULL
;
3033 const char *ip
, *seat
;
3039 if (user_record_storage(h
->record
) != USER_LUKS
)
3042 ip
= user_record_image_path(h
->record
);
3046 if (!path_startswith(ip
, "/dev/"))
3049 if (stat(ip
, &st
) < 0)
3052 if (!S_ISBLK(st
.st_mode
))
3055 r
= sd_device_new_from_stat_rdev(&d
, &st
);
3059 r
= sd_device_get_property_value(d
, "ID_SEAT", &seat
);
3060 if (r
== -ENOENT
) /* no property means seat0 */
3073 int home_auto_login(Home
*h
, char ***ret_seats
) {
3074 _cleanup_free_
char *seat
= NULL
, *seat2
= NULL
;
3079 (void) home_get_image_path_seat(h
, &seat
);
3081 if (h
->record
->auto_login
> 0 && !streq_ptr(seat
, "seat0")) {
3082 /* For now, when the auto-login boolean is set for a user, let's make it mean
3083 * "seat0". Eventually we can extend the concept and allow configuration of any kind of seat,
3084 * but let's keep simple initially, most likely the feature is interesting on single-user
3085 * systems anyway, only.
3087 * We filter out users marked for auto-login in we know for sure their home directory is
3090 if (user_record_test_image_path(h
->record
) != USER_TEST_ABSENT
) {
3091 seat2
= strdup("seat0");
3097 if (seat
|| seat2
) {
3098 _cleanup_strv_free_
char **list
= NULL
;
3101 list
= new(char*, 3);
3106 list
[i
++] = TAKE_PTR(seat
);
3108 list
[i
++] = TAKE_PTR(seat2
);
3111 *ret_seats
= TAKE_PTR(list
);
3119 int home_set_current_message(Home
*h
, sd_bus_message
*m
) {
3125 if (h
->current_operation
)
3128 h
->current_operation
= operation_new(OPERATION_IMMEDIATE
, m
);
3129 if (!h
->current_operation
)
3135 int home_wait_for_worker(Home
*h
) {
3140 if (h
->worker_pid
<= 0)
3143 log_info("Worker process for home %s is still running while exiting. Waiting for it to finish.", h
->user_name
);
3145 r
= wait_for_terminate_with_timeout(h
->worker_pid
, 30 * USEC_PER_SEC
);
3146 if (r
== -ETIMEDOUT
)
3147 log_warning_errno(r
, "Waiting for worker process for home %s timed out. Ignoring.", h
->user_name
);
3149 log_warning_errno(r
, "Failed to wait for worker process for home %s. Ignoring.", h
->user_name
);
3151 (void) hashmap_remove_value(h
->manager
->homes_by_worker_pid
, PID_TO_PTR(h
->worker_pid
), h
);
3156 bool home_shall_rebalance(Home
*h
) {
3161 /* Determines if the home directory is a candidate for rebalancing */
3163 if (!user_record_shall_rebalance(h
->record
))
3166 state
= home_get_state(h
);
3167 if (!HOME_STATE_SHALL_REBALANCE(state
))
3173 bool home_is_busy(Home
*h
) {
3176 if (h
->current_operation
)
3179 if (!ordered_set_isempty(h
->pending_operations
))
3182 return HOME_STATE_IS_EXECUTING_OPERATION(home_get_state(h
));
3185 static const char* const home_state_table
[_HOME_STATE_MAX
] = {
3186 [HOME_UNFIXATED
] = "unfixated",
3187 [HOME_ABSENT
] = "absent",
3188 [HOME_INACTIVE
] = "inactive",
3189 [HOME_DIRTY
] = "dirty",
3190 [HOME_FIXATING
] = "fixating",
3191 [HOME_FIXATING_FOR_ACTIVATION
] = "fixating-for-activation",
3192 [HOME_FIXATING_FOR_ACQUIRE
] = "fixating-for-acquire",
3193 [HOME_ACTIVATING
] = "activating",
3194 [HOME_ACTIVATING_FOR_ACQUIRE
] = "activating-for-acquire",
3195 [HOME_DEACTIVATING
] = "deactivating",
3196 [HOME_ACTIVE
] = "active",
3197 [HOME_LINGERING
] = "lingering",
3198 [HOME_LOCKING
] = "locking",
3199 [HOME_LOCKED
] = "locked",
3200 [HOME_UNLOCKING
] = "unlocking",
3201 [HOME_UNLOCKING_FOR_ACQUIRE
] = "unlocking-for-acquire",
3202 [HOME_CREATING
] = "creating",
3203 [HOME_REMOVING
] = "removing",
3204 [HOME_UPDATING
] = "updating",
3205 [HOME_UPDATING_WHILE_ACTIVE
] = "updating-while-active",
3206 [HOME_RESIZING
] = "resizing",
3207 [HOME_RESIZING_WHILE_ACTIVE
] = "resizing-while-active",
3208 [HOME_PASSWD
] = "passwd",
3209 [HOME_PASSWD_WHILE_ACTIVE
] = "passwd-while-active",
3210 [HOME_AUTHENTICATING
] = "authenticating",
3211 [HOME_AUTHENTICATING_WHILE_ACTIVE
] = "authenticating-while-active",
3212 [HOME_AUTHENTICATING_FOR_ACQUIRE
] = "authenticating-for-acquire",
3215 DEFINE_STRING_TABLE_LOOKUP(home_state
, HomeState
);