1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "alloc-util.h"
9 #include "btrfs-util.h"
10 #include "bus-common-errors.h"
12 #include "cgroup-util.h"
13 #include "errno-util.h"
16 #include "format-util.h"
17 #include "hostname-util.h"
18 #include "image-dbus.h"
20 #include "machine-dbus.h"
21 #include "machine-image.h"
22 #include "machine-pool.h"
24 #include "missing_capability.h"
25 #include "path-util.h"
26 #include "process-util.h"
27 #include "stdio-util.h"
29 #include "tmpfile-util.h"
30 #include "unit-name.h"
31 #include "user-util.h"
33 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_pool_path
, "s", "/var/lib/machines");
35 static int property_get_pool_usage(
38 const char *interface
,
40 sd_bus_message
*reply
,
42 sd_bus_error
*error
) {
44 _cleanup_close_
int fd
= -1;
45 uint64_t usage
= (uint64_t) -1;
50 fd
= open("/var/lib/machines", O_RDONLY
|O_CLOEXEC
|O_DIRECTORY
);
54 if (btrfs_subvol_get_subtree_quota_fd(fd
, 0, &q
) >= 0)
58 return sd_bus_message_append(reply
, "t", usage
);
61 static int property_get_pool_limit(
64 const char *interface
,
66 sd_bus_message
*reply
,
68 sd_bus_error
*error
) {
70 _cleanup_close_
int fd
= -1;
71 uint64_t size
= (uint64_t) -1;
76 fd
= open("/var/lib/machines", O_RDONLY
|O_CLOEXEC
|O_DIRECTORY
);
80 if (btrfs_subvol_get_subtree_quota_fd(fd
, 0, &q
) >= 0)
81 size
= q
.referenced_max
;
84 return sd_bus_message_append(reply
, "t", size
);
87 static int method_get_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
88 _cleanup_free_
char *p
= NULL
;
89 Manager
*m
= userdata
;
97 r
= sd_bus_message_read(message
, "s", &name
);
101 machine
= hashmap_get(m
->machines
, name
);
103 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_MACHINE
, "No machine '%s' known", name
);
105 p
= machine_bus_path(machine
);
109 return sd_bus_reply_method_return(message
, "o", p
);
112 static int method_get_image(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
113 _cleanup_free_
char *p
= NULL
;
114 Manager
*m
= userdata
;
121 r
= sd_bus_message_read(message
, "s", &name
);
125 r
= image_find(IMAGE_MACHINE
, name
, NULL
);
127 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_IMAGE
, "No image '%s' known", name
);
131 p
= image_bus_path(name
);
135 return sd_bus_reply_method_return(message
, "o", p
);
138 static int method_get_machine_by_pid(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
139 _cleanup_free_
char *p
= NULL
;
140 Manager
*m
= userdata
;
141 Machine
*machine
= NULL
;
148 assert_cc(sizeof(pid_t
) == sizeof(uint32_t));
150 r
= sd_bus_message_read(message
, "u", &pid
);
158 _cleanup_(sd_bus_creds_unrefp
) sd_bus_creds
*creds
= NULL
;
160 r
= sd_bus_query_sender_creds(message
, SD_BUS_CREDS_PID
, &creds
);
164 r
= sd_bus_creds_get_pid(creds
, &pid
);
169 r
= manager_get_machine_by_pid(m
, pid
, &machine
);
173 return sd_bus_error_setf(error
, BUS_ERROR_NO_MACHINE_FOR_PID
, "PID "PID_FMT
" does not belong to any known machine", pid
);
175 p
= machine_bus_path(machine
);
179 return sd_bus_reply_method_return(message
, "o", p
);
182 static int method_list_machines(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
183 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
184 Manager
*m
= userdata
;
192 r
= sd_bus_message_new_method_return(message
, &reply
);
194 return sd_bus_error_set_errno(error
, r
);
196 r
= sd_bus_message_open_container(reply
, 'a', "(ssso)");
198 return sd_bus_error_set_errno(error
, r
);
200 HASHMAP_FOREACH(machine
, m
->machines
, i
) {
201 _cleanup_free_
char *p
= NULL
;
203 p
= machine_bus_path(machine
);
207 r
= sd_bus_message_append(reply
, "(ssso)",
209 strempty(machine_class_to_string(machine
->class)),
213 return sd_bus_error_set_errno(error
, r
);
216 r
= sd_bus_message_close_container(reply
);
218 return sd_bus_error_set_errno(error
, r
);
220 return sd_bus_send(NULL
, reply
, NULL
);
223 static int method_create_or_register_machine(Manager
*manager
, sd_bus_message
*message
, bool read_network
, Machine
**_m
, sd_bus_error
*error
) {
224 const char *name
, *service
, *class, *root_directory
;
225 const int32_t *netif
= NULL
;
231 size_t n
, n_netif
= 0;
238 r
= sd_bus_message_read(message
, "s", &name
);
241 if (!machine_name_is_valid(name
))
242 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid machine name");
244 r
= sd_bus_message_read_array(message
, 'y', &v
, &n
);
252 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid machine ID parameter");
254 r
= sd_bus_message_read(message
, "ssus", &service
, &class, &leader
, &root_directory
);
261 r
= sd_bus_message_read_array(message
, 'i', (const void**) &netif
, &n_netif
);
265 n_netif
/= sizeof(int32_t);
267 for (i
= 0; i
< n_netif
; i
++) {
269 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid network interface index %i", netif
[i
]);
274 c
= _MACHINE_CLASS_INVALID
;
276 c
= machine_class_from_string(class);
278 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid machine class parameter");
282 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid leader PID");
284 if (!isempty(root_directory
) && !path_is_absolute(root_directory
))
285 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Root directory must be empty or an absolute path");
288 _cleanup_(sd_bus_creds_unrefp
) sd_bus_creds
*creds
= NULL
;
290 r
= sd_bus_query_sender_creds(message
, SD_BUS_CREDS_PID
, &creds
);
294 assert_cc(sizeof(uint32_t) == sizeof(pid_t
));
296 r
= sd_bus_creds_get_pid(creds
, (pid_t
*) &leader
);
301 if (hashmap_get(manager
->machines
, name
))
302 return sd_bus_error_setf(error
, BUS_ERROR_MACHINE_EXISTS
, "Machine '%s' already exists", name
);
304 r
= manager_add_machine(manager
, name
, &m
);
312 if (!isempty(service
)) {
313 m
->service
= strdup(service
);
320 if (!isempty(root_directory
)) {
321 m
->root_directory
= strdup(root_directory
);
322 if (!m
->root_directory
) {
329 assert_cc(sizeof(int32_t) == sizeof(int));
330 m
->netif
= memdup(netif
, sizeof(int32_t) * n_netif
);
336 m
->n_netif
= n_netif
;
344 machine_add_to_gc_queue(m
);
348 static int method_create_machine_internal(sd_bus_message
*message
, bool read_network
, void *userdata
, sd_bus_error
*error
) {
349 Manager
*manager
= userdata
;
356 r
= method_create_or_register_machine(manager
, message
, read_network
, &m
, error
);
360 r
= sd_bus_message_enter_container(message
, 'a', "(sv)");
364 r
= machine_start(m
, message
, error
);
368 m
->create_message
= sd_bus_message_ref(message
);
372 machine_add_to_gc_queue(m
);
376 static int method_create_machine_with_network(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
377 return method_create_machine_internal(message
, true, userdata
, error
);
380 static int method_create_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
381 return method_create_machine_internal(message
, false, userdata
, error
);
384 static int method_register_machine_internal(sd_bus_message
*message
, bool read_network
, void *userdata
, sd_bus_error
*error
) {
385 Manager
*manager
= userdata
;
386 _cleanup_free_
char *p
= NULL
;
393 r
= method_create_or_register_machine(manager
, message
, read_network
, &m
, error
);
397 r
= cg_pid_get_unit(m
->leader
, &m
->unit
);
399 r
= sd_bus_error_set_errnof(error
, r
,
400 "Failed to determine unit of process "PID_FMT
" : %m",
405 r
= machine_start(m
, NULL
, error
);
409 p
= machine_bus_path(m
);
415 return sd_bus_reply_method_return(message
, "o", p
);
418 machine_add_to_gc_queue(m
);
422 static int method_register_machine_with_network(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
423 return method_register_machine_internal(message
, true, userdata
, error
);
426 static int method_register_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
427 return method_register_machine_internal(message
, false, userdata
, error
);
430 static int redirect_method_to_machine(sd_bus_message
*message
, Manager
*m
, sd_bus_error
*error
, sd_bus_message_handler_t method
) {
439 r
= sd_bus_message_read(message
, "s", &name
);
441 return sd_bus_error_set_errno(error
, r
);
443 machine
= hashmap_get(m
->machines
, name
);
445 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_MACHINE
, "No machine '%s' known", name
);
447 return method(message
, machine
, error
);
450 static int method_unregister_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
451 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_unregister
);
454 static int method_terminate_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
455 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_terminate
);
458 static int method_kill_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
459 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_kill
);
462 static int method_get_machine_addresses(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
463 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_get_addresses
);
466 static int method_get_machine_os_release(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
467 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_get_os_release
);
470 static int method_list_images(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
471 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
472 _cleanup_hashmap_free_ Hashmap
*images
= NULL
;
473 Manager
*m
= userdata
;
481 images
= hashmap_new(&image_hash_ops
);
485 r
= image_discover(IMAGE_MACHINE
, images
);
489 r
= sd_bus_message_new_method_return(message
, &reply
);
493 r
= sd_bus_message_open_container(reply
, 'a', "(ssbttto)");
497 HASHMAP_FOREACH(image
, images
, i
) {
498 _cleanup_free_
char *p
= NULL
;
500 p
= image_bus_path(image
->name
);
504 r
= sd_bus_message_append(reply
, "(ssbttto)",
506 image_type_to_string(image
->type
),
516 r
= sd_bus_message_close_container(reply
);
520 return sd_bus_send(NULL
, reply
, NULL
);
523 static int method_open_machine_pty(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
524 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_open_pty
);
527 static int method_open_machine_login(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
528 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_open_login
);
531 static int method_open_machine_shell(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
532 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_open_shell
);
535 static int method_bind_mount_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
536 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_bind_mount
);
539 static int method_copy_machine(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
540 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_copy
);
543 static int method_open_machine_root_directory(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
544 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_open_root_directory
);
547 static int method_get_machine_uid_shift(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
548 return redirect_method_to_machine(message
, userdata
, error
, bus_machine_method_get_uid_shift
);
551 static int redirect_method_to_image(sd_bus_message
*message
, Manager
*m
, sd_bus_error
*error
, sd_bus_message_handler_t method
) {
552 _cleanup_(image_unrefp
) Image
* i
= NULL
;
560 r
= sd_bus_message_read(message
, "s", &name
);
564 if (!image_name_is_valid(name
))
565 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Image name '%s' is invalid.", name
);
567 r
= image_find(IMAGE_MACHINE
, name
, &i
);
569 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_IMAGE
, "No image '%s' known", name
);
574 return method(message
, i
, error
);
577 static int method_remove_image(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
578 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_remove
);
581 static int method_rename_image(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
582 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_rename
);
585 static int method_clone_image(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
586 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_clone
);
589 static int method_mark_image_read_only(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
590 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_mark_read_only
);
593 static int method_get_image_hostname(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
594 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_get_hostname
);
597 static int method_get_image_machine_id(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
598 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_get_machine_id
);
601 static int method_get_image_machine_info(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
602 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_get_machine_info
);
605 static int method_get_image_os_release(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
606 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_get_os_release
);
609 static int clean_pool_done(Operation
*operation
, int ret
, sd_bus_error
*error
) {
610 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
611 _cleanup_fclose_
FILE *f
= NULL
;
617 assert(operation
->extra_fd
>= 0);
619 if (lseek(operation
->extra_fd
, 0, SEEK_SET
) == (off_t
) -1)
622 f
= fdopen(operation
->extra_fd
, "r");
626 operation
->extra_fd
= -1;
628 /* The resulting temporary file starts with a boolean value that indicates success or not. */
630 n
= fread(&success
, 1, sizeof(success
), f
);
631 if (n
!= sizeof(success
))
632 return ret
< 0 ? ret
: errno_or_else(EIO
);
635 _cleanup_free_
char *name
= NULL
;
637 /* The clean-up operation failed. In this case the resulting temporary file should contain a boolean
638 * set to false followed by the name of the failed image. Let's try to read this and use it for the
639 * error message. If we can't read it, don't mind, and return the naked error. */
641 if (success
) /* The resulting temporary file could not be updated, ignore it. */
644 r
= read_nul_string(f
, LONG_LINE_MAX
, &name
);
645 if (r
<= 0) /* Same here... */
648 return sd_bus_error_set_errnof(error
, ret
, "Failed to remove image %s: %m", name
);
653 r
= sd_bus_message_new_method_return(operation
->message
, &reply
);
657 r
= sd_bus_message_open_container(reply
, 'a', "(st)");
661 /* On success the resulting temporary file will contain a list of image names that were removed followed by
662 * their size on disk. Let's read that and turn it into a bus message. */
664 _cleanup_free_
char *name
= NULL
;
667 r
= read_nul_string(f
, LONG_LINE_MAX
, &name
);
670 if (r
== 0) /* reached the end */
674 n
= fread(&size
, 1, sizeof(size
), f
);
675 if (n
!= sizeof(size
))
676 return errno_or_else(EIO
);
678 r
= sd_bus_message_append(reply
, "(st)", name
, size
);
683 r
= sd_bus_message_close_container(reply
);
687 return sd_bus_send(NULL
, reply
, NULL
);
690 static int method_clean_pool(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
696 _cleanup_close_pair_
int errno_pipe_fd
[2] = { -1, -1 };
697 _cleanup_close_
int result_fd
= -1;
698 Manager
*m
= userdata
;
699 Operation
*operation
;
706 if (m
->n_operations
>= OPERATIONS_MAX
)
707 return sd_bus_error_setf(error
, SD_BUS_ERROR_LIMITS_EXCEEDED
, "Too many ongoing operations.");
709 r
= sd_bus_message_read(message
, "s", &mm
);
713 if (streq(mm
, "all"))
715 else if (streq(mm
, "hidden"))
716 mode
= REMOVE_HIDDEN
;
718 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Unknown mode '%s'.", mm
);
720 r
= bus_verify_polkit_async(
723 "org.freedesktop.machine1.manage-machines",
732 return 1; /* Will call us back */
734 if (pipe2(errno_pipe_fd
, O_CLOEXEC
|O_NONBLOCK
) < 0)
735 return sd_bus_error_set_errnof(error
, errno
, "Failed to create pipe: %m");
737 /* Create a temporary file we can dump information about deleted images into. We use a temporary file for this
738 * instead of a pipe or so, since this might grow quit large in theory and we don't want to process this
740 result_fd
= open_tmpfile_unlinkable(NULL
, O_RDWR
|O_CLOEXEC
);
744 /* This might be a slow operation, run it asynchronously in a background process */
745 r
= safe_fork("(sd-clean)", FORK_RESET_SIGNALS
, &child
);
747 return sd_bus_error_set_errnof(error
, r
, "Failed to fork(): %m");
749 _cleanup_hashmap_free_ Hashmap
*images
= NULL
;
755 errno_pipe_fd
[0] = safe_close(errno_pipe_fd
[0]);
757 images
= hashmap_new(&image_hash_ops
);
763 r
= image_discover(IMAGE_MACHINE
, images
);
767 l
= write(result_fd
, &success
, sizeof(success
));
773 HASHMAP_FOREACH(image
, images
, i
) {
775 /* We can't remove vendor images (i.e. those in /usr) */
776 if (IMAGE_IS_VENDOR(image
))
779 if (IMAGE_IS_HOST(image
))
782 if (mode
== REMOVE_HIDDEN
&& !IMAGE_IS_HIDDEN(image
))
785 r
= image_remove(image
);
786 if (r
== -EBUSY
) /* keep images that are currently being used. */
789 /* If the operation failed, let's override everything we wrote, and instead write there at which image we failed. */
791 (void) ftruncate(result_fd
, 0);
792 (void) lseek(result_fd
, 0, SEEK_SET
);
793 (void) write(result_fd
, &success
, sizeof(success
));
794 (void) write(result_fd
, image
->name
, strlen(image
->name
)+1);
798 l
= write(result_fd
, image
->name
, strlen(image
->name
)+1);
804 l
= write(result_fd
, &image
->usage_exclusive
, sizeof(image
->usage_exclusive
));
811 result_fd
= safe_close(result_fd
);
815 (void) write(errno_pipe_fd
[1], &r
, sizeof(r
));
819 errno_pipe_fd
[1] = safe_close(errno_pipe_fd
[1]);
821 /* The clean-up might take a while, hence install a watch on the child and return */
823 r
= operation_new(m
, NULL
, child
, message
, errno_pipe_fd
[0], &operation
);
825 (void) sigkill_wait(child
);
829 operation
->extra_fd
= result_fd
;
830 operation
->done
= clean_pool_done
;
833 errno_pipe_fd
[0] = -1;
838 static int method_set_pool_limit(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
839 Manager
*m
= userdata
;
845 r
= sd_bus_message_read(message
, "t", &limit
);
848 if (!FILE_SIZE_VALID_OR_INFINITY(limit
))
849 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "New limit out of range");
851 r
= bus_verify_polkit_async(
854 "org.freedesktop.machine1.manage-machines",
863 return 1; /* Will call us back */
865 /* Set up the machine directory if necessary */
866 r
= setup_machine_directory(error
);
870 (void) btrfs_qgroup_set_limit("/var/lib/machines", 0, limit
);
872 r
= btrfs_subvol_set_subtree_quota_limit("/var/lib/machines", 0, limit
);
874 return sd_bus_error_setf(error
, SD_BUS_ERROR_NOT_SUPPORTED
, "Quota is only supported on btrfs.");
876 return sd_bus_error_set_errnof(error
, r
, "Failed to adjust quota limit: %m");
878 return sd_bus_reply_method_return(message
, NULL
);
881 static int method_set_image_limit(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
882 return redirect_method_to_image(message
, userdata
, error
, bus_image_method_set_limit
);
885 static int method_map_from_machine_user(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
886 _cleanup_fclose_
FILE *f
= NULL
;
887 Manager
*m
= userdata
;
888 const char *name
, *p
;
893 r
= sd_bus_message_read(message
, "su", &name
, &uid
);
897 if (!uid_is_valid(uid
))
898 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid user ID " UID_FMT
, uid
);
900 machine
= hashmap_get(m
->machines
, name
);
902 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_MACHINE
, "No machine '%s' known", name
);
904 if (machine
->class != MACHINE_CONTAINER
)
905 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Not supported for non-container machines.");
907 p
= procfs_file_alloca(machine
->leader
, "uid_map");
913 uid_t uid_base
, uid_shift
, uid_range
, converted
;
917 k
= fscanf(f
, UID_FMT
" " UID_FMT
" " UID_FMT
, &uid_base
, &uid_shift
, &uid_range
);
918 if (k
< 0 && feof(f
))
922 return errno_or_else(EIO
);
927 if (uid
< uid_base
|| uid
>= uid_base
+ uid_range
)
930 converted
= uid
- uid_base
+ uid_shift
;
931 if (!uid_is_valid(converted
))
932 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid user ID " UID_FMT
, uid
);
934 return sd_bus_reply_method_return(message
, "u", (uint32_t) converted
);
937 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_USER_MAPPING
, "Machine '%s' has no matching user mappings.", name
);
940 static int method_map_to_machine_user(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
941 Manager
*m
= userdata
;
947 r
= sd_bus_message_read(message
, "u", &uid
);
950 if (!uid_is_valid(uid
))
951 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid user ID " UID_FMT
, uid
);
953 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_USER_MAPPING
, "User " UID_FMT
" belongs to host UID range", uid
);
955 HASHMAP_FOREACH(machine
, m
->machines
, i
) {
956 _cleanup_fclose_
FILE *f
= NULL
;
957 char p
[STRLEN("/proc//uid_map") + DECIMAL_STR_MAX(pid_t
) + 1];
959 if (machine
->class != MACHINE_CONTAINER
)
962 xsprintf(p
, "/proc/" UID_FMT
"/uid_map", machine
->leader
);
965 log_warning_errno(errno
, "Failed to open %s, ignoring,", p
);
970 _cleanup_free_
char *o
= NULL
;
971 uid_t uid_base
, uid_shift
, uid_range
, converted
;
975 k
= fscanf(f
, UID_FMT
" " UID_FMT
" " UID_FMT
, &uid_base
, &uid_shift
, &uid_range
);
976 if (k
< 0 && feof(f
))
980 return errno_or_else(EIO
);
985 /* The private user namespace is disabled, ignoring. */
989 if (uid
< uid_shift
|| uid
>= uid_shift
+ uid_range
)
992 converted
= (uid
- uid_shift
+ uid_base
);
993 if (!uid_is_valid(converted
))
994 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid user ID " UID_FMT
, uid
);
996 o
= machine_bus_path(machine
);
1000 return sd_bus_reply_method_return(message
, "sou", machine
->name
, o
, (uint32_t) converted
);
1004 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_USER_MAPPING
, "No matching user mapping for " UID_FMT
".", uid
);
1007 static int method_map_from_machine_group(sd_bus_message
*message
, void *groupdata
, sd_bus_error
*error
) {
1008 _cleanup_fclose_
FILE *f
= NULL
;
1009 Manager
*m
= groupdata
;
1010 const char *name
, *p
;
1015 r
= sd_bus_message_read(message
, "su", &name
, &gid
);
1019 if (!gid_is_valid(gid
))
1020 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid group ID " GID_FMT
, gid
);
1022 machine
= hashmap_get(m
->machines
, name
);
1024 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_MACHINE
, "No machine '%s' known", name
);
1026 if (machine
->class != MACHINE_CONTAINER
)
1027 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Not supported for non-container machines.");
1029 p
= procfs_file_alloca(machine
->leader
, "gid_map");
1035 gid_t gid_base
, gid_shift
, gid_range
, converted
;
1039 k
= fscanf(f
, GID_FMT
" " GID_FMT
" " GID_FMT
, &gid_base
, &gid_shift
, &gid_range
);
1040 if (k
< 0 && feof(f
))
1044 return errno_or_else(EIO
);
1049 if (gid
< gid_base
|| gid
>= gid_base
+ gid_range
)
1052 converted
= gid
- gid_base
+ gid_shift
;
1053 if (!gid_is_valid(converted
))
1054 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid group ID " GID_FMT
, gid
);
1056 return sd_bus_reply_method_return(message
, "u", (uint32_t) converted
);
1059 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_GROUP_MAPPING
, "Machine '%s' has no matching group mappings.", name
);
1062 static int method_map_to_machine_group(sd_bus_message
*message
, void *groupdata
, sd_bus_error
*error
) {
1063 Manager
*m
= groupdata
;
1069 r
= sd_bus_message_read(message
, "u", &gid
);
1072 if (!gid_is_valid(gid
))
1073 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid group ID " GID_FMT
, gid
);
1075 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_GROUP_MAPPING
, "Group " GID_FMT
" belongs to host GID range", gid
);
1077 HASHMAP_FOREACH(machine
, m
->machines
, i
) {
1078 _cleanup_fclose_
FILE *f
= NULL
;
1079 char p
[STRLEN("/proc//gid_map") + DECIMAL_STR_MAX(pid_t
) + 1];
1081 if (machine
->class != MACHINE_CONTAINER
)
1084 xsprintf(p
, "/proc/" GID_FMT
"/gid_map", machine
->leader
);
1087 log_warning_errno(errno
, "Failed to open %s, ignoring,", p
);
1092 _cleanup_free_
char *o
= NULL
;
1093 gid_t gid_base
, gid_shift
, gid_range
, converted
;
1097 k
= fscanf(f
, GID_FMT
" " GID_FMT
" " GID_FMT
, &gid_base
, &gid_shift
, &gid_range
);
1098 if (k
< 0 && feof(f
))
1102 return errno_or_else(EIO
);
1107 /* The private user namespace is disabled, ignoring. */
1111 if (gid
< gid_shift
|| gid
>= gid_shift
+ gid_range
)
1114 converted
= (gid
- gid_shift
+ gid_base
);
1115 if (!gid_is_valid(converted
))
1116 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid group ID " GID_FMT
, gid
);
1118 o
= machine_bus_path(machine
);
1122 return sd_bus_reply_method_return(message
, "sou", machine
->name
, o
, (uint32_t) converted
);
1126 return sd_bus_error_setf(error
, BUS_ERROR_NO_SUCH_GROUP_MAPPING
, "No matching group mapping for " GID_FMT
".", gid
);
1129 const sd_bus_vtable manager_vtable
[] = {
1130 SD_BUS_VTABLE_START(0),
1131 SD_BUS_PROPERTY("PoolPath", "s", property_get_pool_path
, 0, 0),
1132 SD_BUS_PROPERTY("PoolUsage", "t", property_get_pool_usage
, 0, 0),
1133 SD_BUS_PROPERTY("PoolLimit", "t", property_get_pool_limit
, 0, 0),
1134 SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1135 SD_BUS_METHOD("GetImage", "s", "o", method_get_image
, SD_BUS_VTABLE_UNPRIVILEGED
),
1136 SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid
, SD_BUS_VTABLE_UNPRIVILEGED
),
1137 SD_BUS_METHOD("ListMachines", NULL
, "a(ssso)", method_list_machines
, SD_BUS_VTABLE_UNPRIVILEGED
),
1138 SD_BUS_METHOD("ListImages", NULL
, "a(ssbttto)", method_list_images
, SD_BUS_VTABLE_UNPRIVILEGED
),
1139 SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine
, 0),
1140 SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network
, 0),
1141 SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine
, 0),
1142 SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network
, 0),
1143 SD_BUS_METHOD("UnregisterMachine", "s", NULL
, method_unregister_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1144 SD_BUS_METHOD("TerminateMachine", "s", NULL
, method_terminate_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1145 SD_BUS_METHOD("KillMachine", "ssi", NULL
, method_kill_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1146 SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses
, SD_BUS_VTABLE_UNPRIVILEGED
),
1147 SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release
, SD_BUS_VTABLE_UNPRIVILEGED
),
1148 SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty
, 0),
1149 SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login
, SD_BUS_VTABLE_UNPRIVILEGED
),
1150 SD_BUS_METHOD("OpenMachineShell", "sssasas", "hs", method_open_machine_shell
, SD_BUS_VTABLE_UNPRIVILEGED
),
1151 SD_BUS_METHOD("BindMountMachine", "sssbb", NULL
, method_bind_mount_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1152 SD_BUS_METHOD("CopyFromMachine", "sss", NULL
, method_copy_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1153 SD_BUS_METHOD("CopyToMachine", "sss", NULL
, method_copy_machine
, SD_BUS_VTABLE_UNPRIVILEGED
),
1154 SD_BUS_METHOD("OpenMachineRootDirectory", "s", "h", method_open_machine_root_directory
, SD_BUS_VTABLE_UNPRIVILEGED
),
1155 SD_BUS_METHOD("GetMachineUIDShift", "s", "u", method_get_machine_uid_shift
, SD_BUS_VTABLE_UNPRIVILEGED
),
1156 SD_BUS_METHOD("RemoveImage", "s", NULL
, method_remove_image
, SD_BUS_VTABLE_UNPRIVILEGED
),
1157 SD_BUS_METHOD("RenameImage", "ss", NULL
, method_rename_image
, SD_BUS_VTABLE_UNPRIVILEGED
),
1158 SD_BUS_METHOD("CloneImage", "ssb", NULL
, method_clone_image
, SD_BUS_VTABLE_UNPRIVILEGED
),
1159 SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL
, method_mark_image_read_only
, SD_BUS_VTABLE_UNPRIVILEGED
),
1160 SD_BUS_METHOD("GetImageHostname", "s", "s", method_get_image_hostname
, SD_BUS_VTABLE_UNPRIVILEGED
),
1161 SD_BUS_METHOD("GetImageMachineID", "s", "ay", method_get_image_machine_id
, SD_BUS_VTABLE_UNPRIVILEGED
),
1162 SD_BUS_METHOD("GetImageMachineInfo", "s", "a{ss}", method_get_image_machine_info
, SD_BUS_VTABLE_UNPRIVILEGED
),
1163 SD_BUS_METHOD("GetImageOSRelease", "s", "a{ss}", method_get_image_os_release
, SD_BUS_VTABLE_UNPRIVILEGED
),
1164 SD_BUS_METHOD("SetPoolLimit", "t", NULL
, method_set_pool_limit
, SD_BUS_VTABLE_UNPRIVILEGED
),
1165 SD_BUS_METHOD("SetImageLimit", "st", NULL
, method_set_image_limit
, SD_BUS_VTABLE_UNPRIVILEGED
),
1166 SD_BUS_METHOD("CleanPool", "s", "a(st)", method_clean_pool
, SD_BUS_VTABLE_UNPRIVILEGED
),
1167 SD_BUS_METHOD("MapFromMachineUser", "su", "u", method_map_from_machine_user
, SD_BUS_VTABLE_UNPRIVILEGED
),
1168 SD_BUS_METHOD("MapToMachineUser", "u", "sou", method_map_to_machine_user
, SD_BUS_VTABLE_UNPRIVILEGED
),
1169 SD_BUS_METHOD("MapFromMachineGroup", "su", "u", method_map_from_machine_group
, SD_BUS_VTABLE_UNPRIVILEGED
),
1170 SD_BUS_METHOD("MapToMachineGroup", "u", "sou", method_map_to_machine_group
, SD_BUS_VTABLE_UNPRIVILEGED
),
1171 SD_BUS_SIGNAL("MachineNew", "so", 0),
1172 SD_BUS_SIGNAL("MachineRemoved", "so", 0),
1176 int match_job_removed(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
1177 const char *path
, *result
, *unit
;
1178 Manager
*m
= userdata
;
1186 r
= sd_bus_message_read(message
, "uoss", &id
, &path
, &unit
, &result
);
1188 bus_log_parse_error(r
);
1192 machine
= hashmap_get(m
->machine_units
, unit
);
1196 if (streq_ptr(path
, machine
->scope_job
)) {
1197 machine
->scope_job
= mfree(machine
->scope_job
);
1199 if (machine
->started
) {
1200 if (streq(result
, "done"))
1201 machine_send_create_reply(machine
, NULL
);
1203 _cleanup_(sd_bus_error_free
) sd_bus_error e
= SD_BUS_ERROR_NULL
;
1205 sd_bus_error_setf(&e
, BUS_ERROR_JOB_FAILED
, "Start job for unit %s failed with '%s'", unit
, result
);
1207 machine_send_create_reply(machine
, &e
);
1211 machine_save(machine
);
1214 machine_add_to_gc_queue(machine
);
1218 int match_properties_changed(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
1219 _cleanup_free_
char *unit
= NULL
;
1221 Manager
*m
= userdata
;
1228 path
= sd_bus_message_get_path(message
);
1232 r
= unit_name_from_dbus_path(path
, &unit
);
1233 if (r
== -EINVAL
) /* not for a unit */
1240 machine
= hashmap_get(m
->machine_units
, unit
);
1244 machine_add_to_gc_queue(machine
);
1248 int match_unit_removed(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
1249 const char *path
, *unit
;
1250 Manager
*m
= userdata
;
1257 r
= sd_bus_message_read(message
, "so", &unit
, &path
);
1259 bus_log_parse_error(r
);
1263 machine
= hashmap_get(m
->machine_units
, unit
);
1267 machine_add_to_gc_queue(machine
);
1271 int match_reloading(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
1272 Manager
*m
= userdata
;
1280 r
= sd_bus_message_read(message
, "b", &b
);
1282 bus_log_parse_error(r
);
1288 /* systemd finished reloading, let's recheck all our machines */
1289 log_debug("System manager has been reloaded, rechecking machines...");
1291 HASHMAP_FOREACH(machine
, m
->machines
, i
)
1292 machine_add_to_gc_queue(machine
);
1297 int manager_unref_unit(
1300 sd_bus_error
*error
) {
1305 return sd_bus_call_method(
1307 "org.freedesktop.systemd1",
1308 "/org/freedesktop/systemd1",
1309 "org.freedesktop.systemd1.Manager",
1317 int manager_stop_unit(Manager
*manager
, const char *unit
, sd_bus_error
*error
, char **job
) {
1318 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1324 r
= sd_bus_call_method(
1326 "org.freedesktop.systemd1",
1327 "/org/freedesktop/systemd1",
1328 "org.freedesktop.systemd1.Manager",
1332 "ss", unit
, "fail");
1334 if (sd_bus_error_has_name(error
, BUS_ERROR_NO_SUCH_UNIT
) ||
1335 sd_bus_error_has_name(error
, BUS_ERROR_LOAD_FAILED
)) {
1340 sd_bus_error_free(error
);
1351 r
= sd_bus_message_read(reply
, "o", &j
);
1365 int manager_kill_unit(Manager
*manager
, const char *unit
, int signo
, sd_bus_error
*error
) {
1369 return sd_bus_call_method(
1371 "org.freedesktop.systemd1",
1372 "/org/freedesktop/systemd1",
1373 "org.freedesktop.systemd1.Manager",
1377 "ssi", unit
, "all", signo
);
1380 int manager_unit_is_active(Manager
*manager
, const char *unit
) {
1381 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
1382 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1383 _cleanup_free_
char *path
= NULL
;
1390 path
= unit_dbus_path_from_name(unit
);
1394 r
= sd_bus_get_property(
1396 "org.freedesktop.systemd1",
1398 "org.freedesktop.systemd1.Unit",
1404 if (sd_bus_error_has_name(&error
, SD_BUS_ERROR_NO_REPLY
) ||
1405 sd_bus_error_has_name(&error
, SD_BUS_ERROR_DISCONNECTED
))
1408 if (sd_bus_error_has_name(&error
, BUS_ERROR_NO_SUCH_UNIT
) ||
1409 sd_bus_error_has_name(&error
, BUS_ERROR_LOAD_FAILED
))
1415 r
= sd_bus_message_read(reply
, "s", &state
);
1419 return !STR_IN_SET(state
, "inactive", "failed");
1422 int manager_job_is_active(Manager
*manager
, const char *path
) {
1423 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
1424 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1430 r
= sd_bus_get_property(
1432 "org.freedesktop.systemd1",
1434 "org.freedesktop.systemd1.Job",
1440 if (sd_bus_error_has_name(&error
, SD_BUS_ERROR_NO_REPLY
) ||
1441 sd_bus_error_has_name(&error
, SD_BUS_ERROR_DISCONNECTED
))
1444 if (sd_bus_error_has_name(&error
, SD_BUS_ERROR_UNKNOWN_OBJECT
))
1450 /* We don't actually care about the state really. The fact
1451 * that we could read the job state is enough for us */
1456 int manager_get_machine_by_pid(Manager
*m
, pid_t pid
, Machine
**machine
) {
1464 mm
= hashmap_get(m
->machine_leaders
, PID_TO_PTR(pid
));
1466 _cleanup_free_
char *unit
= NULL
;
1468 r
= cg_pid_get_unit(pid
, &unit
);
1470 mm
= hashmap_get(m
->machine_units
, unit
);
1479 int manager_add_machine(Manager
*m
, const char *name
, Machine
**_machine
) {
1485 machine
= hashmap_get(m
->machines
, name
);
1487 machine
= machine_new(m
, _MACHINE_CLASS_INVALID
, name
);
1493 *_machine
= machine
;