1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
4 #include <sys/utsname.h>
9 #include "alloc-util.h"
10 #include "bus-common-errors.h"
11 #include "bus-get-properties.h"
12 #include "bus-log-control-api.h"
13 #include "bus-polkit.h"
14 #include "constants.h"
15 #include "env-file-label.h"
18 #include "fileio-label.h"
20 #include "hostname-setup.h"
21 #include "hostname-util.h"
22 #include "id128-util.h"
24 #include "main-func.h"
25 #include "missing_capability.h"
26 #include "nscd-flush.h"
27 #include "nulstr-util.h"
29 #include "parse-util.h"
30 #include "path-util.h"
31 #include "sd-device.h"
32 #include "selinux-util.h"
33 #include "service-util.h"
34 #include "signal-util.h"
35 #include "stat-util.h"
36 #include "string-table.h"
38 #include "user-util.h"
41 #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:")
43 /* Properties we cache are indexed by an enum, to make invalidation easy and systematic (as we can iterate
44 * through them all, and they are uniformly strings). */
46 /* Read from /etc/hostname */
49 /* Read from /etc/machine-info */
58 /* Read from /etc/os-release (or /usr/lib/os-release) */
64 _PROP_INVALID
= -EINVAL
,
67 typedef struct Context
{
68 char *data
[_PROP_MAX
];
70 HostnameSource hostname_source
;
72 struct stat etc_hostname_stat
;
73 struct stat etc_os_release_stat
;
74 struct stat etc_machine_info_stat
;
76 Hashmap
*polkit_registry
;
79 static void context_reset(Context
*c
, uint64_t mask
) {
82 for (int p
= 0; p
< _PROP_MAX
; p
++) {
83 if (!FLAGS_SET(mask
, UINT64_C(1) << p
))
86 c
->data
[p
] = mfree(c
->data
[p
]);
90 static void context_destroy(Context
*c
) {
93 context_reset(c
, UINT64_MAX
);
94 bus_verify_polkit_async_registry_free(c
->polkit_registry
);
97 static void context_read_etc_hostname(Context
*c
) {
98 struct stat current_stat
= {};
103 if (stat("/etc/hostname", ¤t_stat
) >= 0 &&
104 stat_inode_unmodified(&c
->etc_hostname_stat
, ¤t_stat
))
107 context_reset(c
, UINT64_C(1) << PROP_STATIC_HOSTNAME
);
109 r
= read_etc_hostname(NULL
, &c
->data
[PROP_STATIC_HOSTNAME
]);
110 if (r
< 0 && r
!= -ENOENT
)
111 log_warning_errno(r
, "Failed to read /etc/hostname, ignoring: %m");
113 c
->etc_hostname_stat
= current_stat
;
116 static void context_read_machine_info(Context
*c
) {
117 struct stat current_stat
= {};
122 if (stat("/etc/machine-info", ¤t_stat
) >= 0 &&
123 stat_inode_unmodified(&c
->etc_machine_info_stat
, ¤t_stat
))
127 (UINT64_C(1) << PROP_PRETTY_HOSTNAME
) |
128 (UINT64_C(1) << PROP_ICON_NAME
) |
129 (UINT64_C(1) << PROP_CHASSIS
) |
130 (UINT64_C(1) << PROP_DEPLOYMENT
) |
131 (UINT64_C(1) << PROP_LOCATION
) |
132 (UINT64_C(1) << PROP_HARDWARE_VENDOR
) |
133 (UINT64_C(1) << PROP_HARDWARE_MODEL
));
135 r
= parse_env_file(NULL
, "/etc/machine-info",
136 "PRETTY_HOSTNAME", &c
->data
[PROP_PRETTY_HOSTNAME
],
137 "ICON_NAME", &c
->data
[PROP_ICON_NAME
],
138 "CHASSIS", &c
->data
[PROP_CHASSIS
],
139 "DEPLOYMENT", &c
->data
[PROP_DEPLOYMENT
],
140 "LOCATION", &c
->data
[PROP_LOCATION
],
141 "HARDWARE_VENDOR", &c
->data
[PROP_HARDWARE_VENDOR
],
142 "HARDWARE_MODEL", &c
->data
[PROP_HARDWARE_MODEL
]);
143 if (r
< 0 && r
!= -ENOENT
)
144 log_warning_errno(r
, "Failed to read /etc/machine-info, ignoring: %m");
146 c
->etc_machine_info_stat
= current_stat
;
149 static void context_read_os_release(Context
*c
) {
150 _cleanup_free_
char *os_name
= NULL
, *os_pretty_name
= NULL
;
151 struct stat current_stat
= {};
156 if ((stat("/etc/os-release", ¤t_stat
) >= 0 ||
157 stat("/usr/lib/os-release", ¤t_stat
) >= 0) &&
158 stat_inode_unmodified(&c
->etc_os_release_stat
, ¤t_stat
))
162 (UINT64_C(1) << PROP_OS_PRETTY_NAME
) |
163 (UINT64_C(1) << PROP_OS_CPE_NAME
) |
164 (UINT64_C(1) << PROP_OS_HOME_URL
) |
165 (UINT64_C(1) << PROP_OS_SUPPORT_END
));
167 r
= parse_os_release(NULL
,
168 "PRETTY_NAME", &os_pretty_name
,
170 "CPE_NAME", &c
->data
[PROP_OS_CPE_NAME
],
171 "HOME_URL", &c
->data
[PROP_OS_HOME_URL
],
172 "SUPPORT_END", &c
->data
[PROP_OS_SUPPORT_END
]);
173 if (r
< 0 && r
!= -ENOENT
)
174 log_warning_errno(r
, "Failed to read os-release file, ignoring: %m");
176 if (free_and_strdup(&c
->data
[PROP_OS_PRETTY_NAME
], os_release_pretty_name(os_pretty_name
, os_name
)) < 0)
179 c
->etc_os_release_stat
= current_stat
;
182 static int get_dmi_data(const char *database_key
, const char *regular_key
, char **ret
) {
183 _cleanup_(sd_device_unrefp
) sd_device
*device
= NULL
;
184 _cleanup_free_
char *b
= NULL
;
185 const char *s
= NULL
;
188 r
= sd_device_new_from_syspath(&device
, "/sys/class/dmi/id");
190 return log_debug_errno(r
, "Failed to open /sys/class/dmi/id device, ignoring: %m");
193 (void) sd_device_get_property_value(device
, database_key
, &s
);
194 if (!s
&& regular_key
)
195 (void) sd_device_get_property_value(device
, regular_key
, &s
);
210 static int get_hardware_vendor(char **ret
) {
211 return get_dmi_data("ID_VENDOR_FROM_DATABASE", "ID_VENDOR", ret
);
214 static int get_hardware_model(char **ret
) {
215 return get_dmi_data("ID_MODEL_FROM_DATABASE", "ID_MODEL", ret
);
218 static int get_hardware_firmware_data(const char *sysattr
, char **ret
) {
219 _cleanup_(sd_device_unrefp
) sd_device
*device
= NULL
;
220 _cleanup_free_
char *b
= NULL
;
221 const char *s
= NULL
;
226 r
= sd_device_new_from_syspath(&device
, "/sys/class/dmi/id");
228 return log_debug_errno(r
, "Failed to open /sys/class/dmi/id device, ignoring: %m");
230 (void) sd_device_get_sysattr_value(device
, sysattr
, &s
);
243 static int get_hardware_serial(char **ret
) {
246 r
= get_hardware_firmware_data("product_serial", ret
);
248 return get_hardware_firmware_data("board_serial", ret
);
253 static int get_firmware_version(char **ret
) {
254 return get_hardware_firmware_data("bios_version", ret
);
257 static int get_firmware_vendor(char **ret
) {
258 return get_hardware_firmware_data("bios_vendor", ret
);
261 static int get_firmware_date(usec_t
*ret
) {
262 _cleanup_free_
char *bios_date
= NULL
, *month
= NULL
, *day
= NULL
, *year
= NULL
;
267 r
= get_hardware_firmware_data("bios_date", &bios_date
);
271 *ret
= USEC_INFINITY
;
275 const char *p
= bios_date
;
276 r
= extract_many_words(&p
, "/", EXTRACT_DONT_COALESCE_SEPARATORS
, &month
, &day
, &year
, NULL
);
279 if (r
!= 3) /* less than three args read? */
281 if (!isempty(p
)) /* more left in the string? */
285 r
= safe_atou(month
, &m
);
292 r
= safe_atou(day
, &d
);
298 r
= safe_atou(year
, &y
);
301 if (y
< 1970 || y
> (unsigned) INT_MAX
)
310 time_t v
= timegm(&tm
);
311 if (v
== (time_t) -1)
313 if (tm
.tm_mday
!= (int) d
|| tm
.tm_mon
!= (int) m
|| tm
.tm_year
!= (int) y
)
314 return -EINVAL
; /* date was not normalized? (e.g. "30th of feb") */
316 *ret
= (usec_t
) v
* USEC_PER_SEC
;
321 static const char* valid_chassis(const char *chassis
) {
338 static bool valid_deployment(const char *deployment
) {
341 return in_charset(deployment
, VALID_DEPLOYMENT_CHARS
);
344 static const char* fallback_chassis(void) {
346 _cleanup_free_
char *type
= NULL
;
351 v
= detect_virtualization();
353 log_debug_errno(v
, "Failed to detect virtualization, ignoring: %m");
354 else if (VIRTUALIZATION_IS_VM(v
))
356 else if (VIRTUALIZATION_IS_CONTAINER(v
))
359 r
= read_one_line_file("/sys/class/dmi/id/chassis_type", &type
);
361 log_debug_errno(r
, "Failed to read DMI chassis type, ignoring: %m");
365 r
= safe_atou(type
, &t
);
367 log_debug_errno(r
, "Failed to parse DMI chassis type \"%s\", ignoring: %m", type
);
371 /* We only list the really obvious cases here. The DMI data is unreliable enough, so let's not do any
372 * additional guesswork on top of that.
374 * See the SMBIOS Specification 3.5.0 section 7.4.1 for details about the values listed here:
376 * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.5.0.pdf
381 case 0x03: /* Desktop */
382 case 0x04: /* Low Profile Desktop */
383 case 0x06: /* Mini Tower */
384 case 0x07: /* Tower */
385 case 0x0D: /* All in one (i.e. PC built into monitor) */
386 case 0x23: /* Mini PC */
387 case 0x24: /* Stick PC */
390 case 0x8: /* Portable */
391 case 0x9: /* Laptop */
392 case 0xA: /* Notebook */
393 case 0xE: /* Sub Notebook */
396 case 0xB: /* Hand Held */
399 case 0x11: /* Main Server Chassis */
400 case 0x1C: /* Blade */
401 case 0x1D: /* Blade Enclosure */
404 case 0x1E: /* Tablet */
407 case 0x1F: /* Convertible */
408 case 0x20: /* Detachable */
409 return "convertible";
411 case 0x21: /* IoT Gateway */
412 case 0x22: /* Embedded PC */
416 log_debug("Unhandled DMI chassis type 0x%02x, ignoring.", t
);
421 r
= read_one_line_file("/sys/firmware/acpi/pm_profile", &type
);
423 log_debug_errno(r
, "Failed read ACPI PM profile, ignoring: %m");
427 r
= safe_atou(type
, &t
);
429 log_debug_errno(r
, "Failed parse ACPI PM profile \"%s\", ignoring: %m", type
);
433 /* We only list the really obvious cases here as the ACPI data is not really super reliable.
435 * See the ACPI 5.0 Spec Section 5.2.9.1 for details:
437 * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf
442 case 1: /* Desktop */
443 case 3: /* Workstation */
444 case 6: /* Appliance PC */
450 case 4: /* Enterprise Server */
451 case 5: /* SOHO Server */
452 case 7: /* Performance Server */
459 log_debug("Unhandled ACPI PM profile 0x%02x, ignoring.", t
);
464 r
= read_one_line_file("/proc/device-tree/chassis-type", &type
);
466 log_debug_errno(r
, "Failed to read device-tree chassis type, ignoring: %m");
470 /* Note that the Devicetree specification uses the very same vocabulary
471 * of chassis types as we do, hence we do not need to translate these types:
473 * https://github.com/devicetree-org/devicetree-specification/blob/master/source/chapter3-devicenodes.rst */
474 chassis
= valid_chassis(type
);
476 log_debug("Invalid device-tree chassis type \"%s\", ignoring.", type
);
480 static char* context_get_chassis(Context
*c
) {
481 const char *fallback
;
486 if (!isempty(c
->data
[PROP_CHASSIS
]))
487 return strdup(c
->data
[PROP_CHASSIS
]);
489 if (get_dmi_data("ID_CHASSIS", NULL
, &dmi
) > 0)
492 fallback
= fallback_chassis();
494 return strdup(fallback
);
499 static char* context_fallback_icon_name(Context
*c
) {
500 _cleanup_free_
char *chassis
= NULL
;
504 chassis
= context_get_chassis(c
);
506 return strjoin("computer-", chassis
);
508 return strdup("computer");
511 static int context_update_kernel_hostname(
513 const char *transient_hn
) {
515 _cleanup_free_
char *_hn_free
= NULL
;
522 /* /etc/hostname has the highest preference ... */
523 if (c
->data
[PROP_STATIC_HOSTNAME
]) {
524 hn
= c
->data
[PROP_STATIC_HOSTNAME
];
525 hns
= HOSTNAME_STATIC
;
527 /* ... the transient hostname, (ie: DHCP) comes next ... */
528 } else if (transient_hn
) {
530 hns
= HOSTNAME_TRANSIENT
;
532 /* ... and the ultimate fallback */
534 hn
= _hn_free
= get_default_hostname();
538 hns
= HOSTNAME_DEFAULT
;
541 r
= sethostname_idempotent(hn
);
543 return log_error_errno(r
, "Failed to set hostname: %m");
545 if (c
->hostname_source
!= hns
) {
546 c
->hostname_source
= hns
;
550 (void) nscd_flush_cache(STRV_MAKE("hosts"));
553 log_debug("Hostname was already set to <%s>.", hn
);
555 log_info("Hostname set to <%s> (%s)", hn
, hostname_source_to_string(hns
));
557 hostname_update_source_hint(hn
, hns
);
560 return r
; /* 0 if no change, 1 if something was done */
563 static void unset_statp(struct stat
**p
) {
567 **p
= (struct stat
) {};
570 static int context_write_data_static_hostname(Context
*c
) {
571 _cleanup_(unset_statp
) struct stat
*s
= NULL
;
576 /* Make sure that if we fail here, we invalidate the cached information, since it was updated
577 * already, even if we can't make it hit the disk. */
578 s
= &c
->etc_hostname_stat
;
580 if (isempty(c
->data
[PROP_STATIC_HOSTNAME
])) {
581 if (unlink("/etc/hostname") < 0 && errno
!= ENOENT
)
588 r
= write_string_file_atomic_label("/etc/hostname", c
->data
[PROP_STATIC_HOSTNAME
]);
596 static int context_write_data_machine_info(Context
*c
) {
597 _cleanup_(unset_statp
) struct stat
*s
= NULL
;
598 static const char * const name
[_PROP_MAX
] = {
599 [PROP_PRETTY_HOSTNAME
] = "PRETTY_HOSTNAME",
600 [PROP_ICON_NAME
] = "ICON_NAME",
601 [PROP_CHASSIS
] = "CHASSIS",
602 [PROP_DEPLOYMENT
] = "DEPLOYMENT",
603 [PROP_LOCATION
] = "LOCATION",
605 _cleanup_strv_free_
char **l
= NULL
;
610 /* Make sure that if we fail here, we invalidate the cached information, since it was updated
611 * already, even if we can't make it hit the disk. */
612 s
= &c
->etc_machine_info_stat
;
614 r
= load_env_file(NULL
, "/etc/machine-info", &l
);
615 if (r
< 0 && r
!= -ENOENT
)
618 for (int p
= PROP_PRETTY_HOSTNAME
; p
<= PROP_LOCATION
; p
++) {
621 r
= strv_env_assign(&l
, name
[p
], empty_to_null(c
->data
[p
]));
626 if (strv_isempty(l
)) {
627 if (unlink("/etc/machine-info") < 0 && errno
!= ENOENT
)
634 r
= write_env_file_label("/etc/machine-info", l
);
642 static int property_get_hardware_property(
643 sd_bus_message
*reply
,
646 int (*getter
)(char **)) {
648 _cleanup_free_
char *from_dmi
= NULL
;
652 assert(IN_SET(prop
, PROP_HARDWARE_VENDOR
, PROP_HARDWARE_MODEL
));
655 context_read_machine_info(c
);
657 if (isempty(c
->data
[prop
]))
658 (void) getter(&from_dmi
);
660 return sd_bus_message_append(reply
, "s", from_dmi
?: c
->data
[prop
]);
663 static int property_get_hardware_vendor(
666 const char *interface
,
667 const char *property
,
668 sd_bus_message
*reply
,
670 sd_bus_error
*error
) {
672 return property_get_hardware_property(reply
, userdata
, PROP_HARDWARE_VENDOR
, get_hardware_vendor
);
675 static int property_get_hardware_model(
678 const char *interface
,
679 const char *property
,
680 sd_bus_message
*reply
,
682 sd_bus_error
*error
) {
684 return property_get_hardware_property(reply
, userdata
, PROP_HARDWARE_MODEL
, get_hardware_model
);
687 static int property_get_firmware_version(
690 const char *interface
,
691 const char *property
,
692 sd_bus_message
*reply
,
694 sd_bus_error
*error
) {
696 _cleanup_free_
char *firmware_version
= NULL
;
698 (void) get_firmware_version(&firmware_version
);
700 return sd_bus_message_append(reply
, "s", firmware_version
);
703 static int property_get_firmware_vendor(
706 const char *interface
,
707 const char *property
,
708 sd_bus_message
*reply
,
710 sd_bus_error
*error
) {
712 _cleanup_free_
char *firmware_vendor
= NULL
;
714 (void) get_firmware_vendor(&firmware_vendor
);
716 return sd_bus_message_append(reply
, "s", firmware_vendor
);
719 static int property_get_firmware_date(
722 const char *interface
,
723 const char *property
,
724 sd_bus_message
*reply
,
726 sd_bus_error
*error
) {
728 usec_t firmware_date
= USEC_INFINITY
;
730 (void) get_firmware_date(&firmware_date
);
732 return sd_bus_message_append(reply
, "t", firmware_date
);
734 static int property_get_hostname(
737 const char *interface
,
738 const char *property
,
739 sd_bus_message
*reply
,
741 sd_bus_error
*error
) {
743 _cleanup_free_
char *hn
= NULL
;
746 r
= gethostname_strict(&hn
);
751 hn
= get_default_hostname();
756 return sd_bus_message_append(reply
, "s", hn
);
759 static int property_get_static_hostname(
762 const char *interface
,
763 const char *property
,
764 sd_bus_message
*reply
,
766 sd_bus_error
*error
) {
768 Context
*c
= ASSERT_PTR(userdata
);
770 context_read_etc_hostname(c
);
772 return sd_bus_message_append(reply
, "s", c
->data
[PROP_STATIC_HOSTNAME
]);
775 static int property_get_default_hostname(
778 const char *interface
,
779 const char *property
,
780 sd_bus_message
*reply
,
782 sd_bus_error
*error
) {
784 _cleanup_free_
char *hn
= NULL
;
786 hn
= get_default_hostname();
790 return sd_bus_message_append(reply
, "s", hn
);
793 static void context_determine_hostname_source(Context
*c
) {
794 _cleanup_free_
char *hostname
= NULL
;
799 if (c
->hostname_source
>= 0)
802 (void) gethostname_full(GET_HOSTNAME_ALLOW_LOCALHOST
, &hostname
);
804 if (streq_ptr(hostname
, c
->data
[PROP_STATIC_HOSTNAME
]))
805 c
->hostname_source
= HOSTNAME_STATIC
;
807 _cleanup_free_
char *fallback
= NULL
;
809 /* If the hostname was not set by us, try to figure out where it came from. If we set it to
810 * the default hostname, the file will tell us. We compare the string because it is possible
811 * that the hostname was set by an older version that had a different fallback, in the initrd
812 * or before we reexecuted. */
814 r
= read_one_line_file("/run/systemd/default-hostname", &fallback
);
815 if (r
< 0 && r
!= -ENOENT
)
816 log_warning_errno(r
, "Failed to read /run/systemd/default-hostname, ignoring: %m");
818 if (streq_ptr(fallback
, hostname
))
819 c
->hostname_source
= HOSTNAME_DEFAULT
;
821 c
->hostname_source
= HOSTNAME_TRANSIENT
;
825 static int property_get_hostname_source(
828 const char *interface
,
829 const char *property
,
830 sd_bus_message
*reply
,
832 sd_bus_error
*error
) {
834 Context
*c
= ASSERT_PTR(userdata
);
836 context_read_etc_hostname(c
);
837 context_determine_hostname_source(c
);
839 return sd_bus_message_append(reply
, "s", hostname_source_to_string(c
->hostname_source
));
842 static int property_get_machine_info_field(
845 const char *interface
,
846 const char *property
,
847 sd_bus_message
*reply
,
849 sd_bus_error
*error
) {
854 /* Acquire the context object without this property's userdata offset added. Explanation: we want
855 * access to two pointers here: a) the main context object we cache all properties in, and b) the
856 * pointer to the property field inside the context object that we are supposed to update and
857 * use. The latter (b) we get in the 'userdata' function parameter, and sd-bus calculates that for us
858 * from the 'userdata' pointer we supplied when the vtable was registered, with the offset we
859 * specified in the vtable added on top. To get the former (a) we need the 'userdata' pointer from
860 * the vtable registration directly, without the offset added. Hence we ask sd-bus what the slot
861 * object is (which encapsulates the vtable registration), and then query the 'userdata' field
862 * directly off it. */
863 assert_se(slot
= sd_bus_get_current_slot(bus
));
864 assert_se(c
= sd_bus_slot_get_userdata(slot
));
866 context_read_machine_info(c
);
868 return sd_bus_message_append(reply
, "s", *(char**) userdata
);
871 static int property_get_os_release_field(
874 const char *interface
,
875 const char *property
,
876 sd_bus_message
*reply
,
878 sd_bus_error
*error
) {
883 /* As above, acquire the current context without this property's userdata offset added. */
884 assert_se(slot
= sd_bus_get_current_slot(bus
));
885 assert_se(c
= sd_bus_slot_get_userdata(slot
));
887 context_read_os_release(c
);
889 return sd_bus_message_append(reply
, "s", *(char**) userdata
);
892 static int property_get_os_support_end(
895 const char *interface
,
896 const char *property
,
897 sd_bus_message
*reply
,
899 sd_bus_error
*error
) {
901 Context
*c
= userdata
;
902 usec_t eol
= USEC_INFINITY
;
904 context_read_os_release(c
);
906 if (c
->data
[PROP_OS_SUPPORT_END
])
907 (void) os_release_support_ended(c
->data
[PROP_OS_SUPPORT_END
], /* quiet= */ false, &eol
);
909 return sd_bus_message_append(reply
, "t", eol
);
912 static int property_get_icon_name(
915 const char *interface
,
916 const char *property
,
917 sd_bus_message
*reply
,
919 sd_bus_error
*error
) {
921 _cleanup_free_
char *n
= NULL
;
922 Context
*c
= userdata
;
925 context_read_machine_info(c
);
927 if (isempty(c
->data
[PROP_ICON_NAME
]))
928 name
= n
= context_fallback_icon_name(c
);
930 name
= c
->data
[PROP_ICON_NAME
];
935 return sd_bus_message_append(reply
, "s", name
);
938 static int property_get_chassis(
941 const char *interface
,
942 const char *property
,
943 sd_bus_message
*reply
,
945 sd_bus_error
*error
) {
947 _cleanup_free_
char *chassis
= NULL
;
948 Context
*c
= userdata
;
950 context_read_machine_info(c
);
952 chassis
= context_get_chassis(c
);
954 return sd_bus_message_append(reply
, "s", chassis
);
957 static int property_get_uname_field(
960 const char *interface
,
961 const char *property
,
962 sd_bus_message
*reply
,
964 sd_bus_error
*error
) {
968 assert_se(uname(&u
) >= 0);
970 return sd_bus_message_append(reply
, "s", (char*) &u
+ PTR_TO_SIZE(userdata
));
973 static int method_set_hostname(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
974 Context
*c
= ASSERT_PTR(userdata
);
980 r
= sd_bus_message_read(m
, "sb", &name
, &interactive
);
984 name
= empty_to_null(name
);
986 /* We always go through with the procedure below without comparing to the current hostname, because
987 * we might want to adjust hostname source information even if the actual hostname is unchanged. */
989 if (name
&& !hostname_is_valid(name
, 0))
990 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid hostname '%s'", name
);
992 context_read_etc_hostname(c
);
994 r
= bus_verify_polkit_async(
997 "org.freedesktop.hostname1.set-hostname",
1001 &c
->polkit_registry
,
1006 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1008 r
= context_update_kernel_hostname(c
, name
);
1010 return sd_bus_error_set_errnof(error
, r
, "Failed to set hostname: %m");
1012 (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m
),
1013 "/org/freedesktop/hostname1", "org.freedesktop.hostname1",
1014 "Hostname", "HostnameSource", NULL
);
1016 return sd_bus_reply_method_return(m
, NULL
);
1019 static int method_set_static_hostname(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1020 Context
*c
= ASSERT_PTR(userdata
);
1027 r
= sd_bus_message_read(m
, "sb", &name
, &interactive
);
1031 name
= empty_to_null(name
);
1033 context_read_etc_hostname(c
);
1035 if (streq_ptr(name
, c
->data
[PROP_STATIC_HOSTNAME
]))
1036 return sd_bus_reply_method_return(m
, NULL
);
1038 if (name
&& !hostname_is_valid(name
, 0))
1039 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid static hostname '%s'", name
);
1041 r
= bus_verify_polkit_async(
1044 "org.freedesktop.hostname1.set-static-hostname",
1048 &c
->polkit_registry
,
1053 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1055 r
= free_and_strdup_warn(&c
->data
[PROP_STATIC_HOSTNAME
], name
);
1059 r
= context_write_data_static_hostname(c
);
1061 log_error_errno(r
, "Failed to write static hostname: %m");
1062 if (ERRNO_IS_PRIVILEGE(r
))
1063 return sd_bus_error_set(error
, BUS_ERROR_FILE_IS_PROTECTED
, "Not allowed to update /etc/hostname.");
1065 return sd_bus_error_set(error
, BUS_ERROR_READ_ONLY_FILESYSTEM
, "/etc/hostname is in a read-only filesystem.");
1066 return sd_bus_error_set_errnof(error
, r
, "Failed to set static hostname: %m");
1069 r
= context_update_kernel_hostname(c
, NULL
);
1071 log_error_errno(r
, "Failed to set hostname: %m");
1072 return sd_bus_error_set_errnof(error
, r
, "Failed to set hostname: %m");
1075 (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m
),
1076 "/org/freedesktop/hostname1", "org.freedesktop.hostname1",
1077 "StaticHostname", "Hostname", "HostnameSource", NULL
);
1079 return sd_bus_reply_method_return(m
, NULL
);
1082 static int set_machine_info(Context
*c
, sd_bus_message
*m
, int prop
, sd_bus_message_handler_t cb
, sd_bus_error
*error
) {
1090 r
= sd_bus_message_read(m
, "sb", &name
, &interactive
);
1094 name
= empty_to_null(name
);
1096 context_read_machine_info(c
);
1098 if (streq_ptr(name
, c
->data
[prop
]))
1099 return sd_bus_reply_method_return(m
, NULL
);
1101 if (!isempty(name
)) {
1102 /* The icon name might ultimately be used as file
1103 * name, so better be safe than sorry */
1105 if (prop
== PROP_ICON_NAME
&& !filename_is_valid(name
))
1106 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid icon name '%s'", name
);
1107 if (prop
== PROP_PRETTY_HOSTNAME
&& string_has_cc(name
, NULL
))
1108 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid pretty hostname '%s'", name
);
1109 if (prop
== PROP_CHASSIS
&& !valid_chassis(name
))
1110 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid chassis '%s'", name
);
1111 if (prop
== PROP_DEPLOYMENT
&& !valid_deployment(name
))
1112 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid deployment '%s'", name
);
1113 if (prop
== PROP_LOCATION
&& string_has_cc(name
, NULL
))
1114 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid location '%s'", name
);
1117 /* Since the pretty hostname should always be changed at the
1118 * same time as the static one, use the same policy action for
1121 r
= bus_verify_polkit_async(
1124 prop
== PROP_PRETTY_HOSTNAME
? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info",
1128 &c
->polkit_registry
,
1133 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1135 r
= free_and_strdup_warn(&c
->data
[prop
], name
);
1139 r
= context_write_data_machine_info(c
);
1141 log_error_errno(r
, "Failed to write machine info: %m");
1142 if (ERRNO_IS_PRIVILEGE(r
))
1143 return sd_bus_error_set(error
, BUS_ERROR_FILE_IS_PROTECTED
, "Not allowed to update /etc/machine-info.");
1145 return sd_bus_error_set(error
, BUS_ERROR_READ_ONLY_FILESYSTEM
, "/etc/machine-info is in a read-only filesystem.");
1146 return sd_bus_error_set_errnof(error
, r
, "Failed to write machine info: %m");
1149 log_info("Changed %s to '%s'",
1150 prop
== PROP_PRETTY_HOSTNAME
? "pretty hostname" :
1151 prop
== PROP_DEPLOYMENT
? "deployment" :
1152 prop
== PROP_LOCATION
? "location" :
1153 prop
== PROP_CHASSIS
? "chassis" : "icon name", strna(c
->data
[prop
]));
1155 (void) sd_bus_emit_properties_changed(
1156 sd_bus_message_get_bus(m
),
1157 "/org/freedesktop/hostname1",
1158 "org.freedesktop.hostname1",
1159 prop
== PROP_PRETTY_HOSTNAME
? "PrettyHostname" :
1160 prop
== PROP_DEPLOYMENT
? "Deployment" :
1161 prop
== PROP_LOCATION
? "Location" :
1162 prop
== PROP_CHASSIS
? "Chassis" : "IconName" , NULL
);
1164 return sd_bus_reply_method_return(m
, NULL
);
1167 static int method_set_pretty_hostname(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1168 return set_machine_info(userdata
, m
, PROP_PRETTY_HOSTNAME
, method_set_pretty_hostname
, error
);
1171 static int method_set_icon_name(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1172 return set_machine_info(userdata
, m
, PROP_ICON_NAME
, method_set_icon_name
, error
);
1175 static int method_set_chassis(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1176 return set_machine_info(userdata
, m
, PROP_CHASSIS
, method_set_chassis
, error
);
1179 static int method_set_deployment(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1180 return set_machine_info(userdata
, m
, PROP_DEPLOYMENT
, method_set_deployment
, error
);
1183 static int method_set_location(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1184 return set_machine_info(userdata
, m
, PROP_LOCATION
, method_set_location
, error
);
1187 static int method_get_product_uuid(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1188 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1189 Context
*c
= ASSERT_PTR(userdata
);
1195 r
= sd_bus_message_read(m
, "b", &interactive
);
1199 r
= bus_verify_polkit_async(
1202 "org.freedesktop.hostname1.get-product-uuid",
1206 &c
->polkit_registry
,
1211 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1213 r
= id128_get_product(&uuid
);
1215 if (r
== -EADDRNOTAVAIL
)
1216 log_debug_errno(r
, "DMI product UUID is all 0x00 or all 0xFF, ignoring.");
1218 log_full_errno(r
== -ENOENT
? LOG_DEBUG
: LOG_WARNING
, r
,
1219 "Failed to read product UUID, ignoring: %m");
1221 return sd_bus_error_set(error
, BUS_ERROR_NO_PRODUCT_UUID
,
1222 "Failed to read product UUID from firmware.");
1225 r
= sd_bus_message_new_method_return(m
, &reply
);
1229 r
= sd_bus_message_append_array(reply
, 'y', uuid
.bytes
, sizeof(uuid
.bytes
));
1233 return sd_bus_send(NULL
, reply
, NULL
);
1236 static int method_get_hardware_serial(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1237 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1238 _cleanup_free_
char *serial
= NULL
;
1239 Context
*c
= ASSERT_PTR(userdata
);
1244 r
= bus_verify_polkit_async(
1247 "org.freedesktop.hostname1.get-hardware-serial",
1251 &c
->polkit_registry
,
1256 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1258 r
= get_hardware_serial(&serial
);
1262 r
= sd_bus_message_new_method_return(m
, &reply
);
1266 r
= sd_bus_message_append(reply
, "s", serial
);
1270 return sd_bus_send(NULL
, reply
, NULL
);
1273 static int method_describe(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
1274 _cleanup_free_
char *hn
= NULL
, *dhn
= NULL
, *in
= NULL
, *text
= NULL
,
1275 *chassis
= NULL
, *vendor
= NULL
, *model
= NULL
, *serial
= NULL
, *firmware_version
= NULL
,
1276 *firmware_vendor
= NULL
;
1277 usec_t firmware_date
= USEC_INFINITY
, eol
= USEC_INFINITY
;
1278 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
1279 _cleanup_(json_variant_unrefp
) JsonVariant
*v
= NULL
;
1280 sd_id128_t product_uuid
= SD_ID128_NULL
;
1281 Context
*c
= ASSERT_PTR(userdata
);
1288 r
= bus_verify_polkit_async(
1291 "org.freedesktop.hostname1.get-description",
1295 &c
->polkit_registry
,
1298 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1300 /* We ignore all authentication errors here, since most data is unprivileged, the one exception being
1301 * the product ID which we'll check explicitly. */
1304 context_read_etc_hostname(c
);
1305 context_read_machine_info(c
);
1306 context_read_os_release(c
);
1307 context_determine_hostname_source(c
);
1309 r
= gethostname_strict(&hn
);
1312 return log_error_errno(r
, "Failed to read local host name: %m");
1314 hn
= get_default_hostname();
1319 dhn
= get_default_hostname();
1323 if (isempty(c
->data
[PROP_ICON_NAME
]))
1324 in
= context_fallback_icon_name(c
);
1326 chassis
= context_get_chassis(c
);
1328 assert_se(uname(&u
) >= 0);
1330 if (isempty(c
->data
[PROP_HARDWARE_VENDOR
]))
1331 (void) get_hardware_vendor(&vendor
);
1332 if (isempty(c
->data
[PROP_HARDWARE_MODEL
]))
1333 (void) get_hardware_model(&model
);
1336 /* The product UUID and hardware serial is only available to privileged clients */
1337 (void) id128_get_product(&product_uuid
);
1338 (void) get_hardware_serial(&serial
);
1340 (void) get_firmware_version(&firmware_version
);
1341 (void) get_firmware_vendor(&firmware_vendor
);
1342 (void) get_firmware_date(&firmware_date
);
1344 if (c
->data
[PROP_OS_SUPPORT_END
])
1345 (void) os_release_support_ended(c
->data
[PROP_OS_SUPPORT_END
], /* quiet= */ false, &eol
);
1347 r
= json_build(&v
, JSON_BUILD_OBJECT(
1348 JSON_BUILD_PAIR("Hostname", JSON_BUILD_STRING(hn
)),
1349 JSON_BUILD_PAIR("StaticHostname", JSON_BUILD_STRING(c
->data
[PROP_STATIC_HOSTNAME
])),
1350 JSON_BUILD_PAIR("PrettyHostname", JSON_BUILD_STRING(c
->data
[PROP_PRETTY_HOSTNAME
])),
1351 JSON_BUILD_PAIR("DefaultHostname", JSON_BUILD_STRING(dhn
)),
1352 JSON_BUILD_PAIR("HostnameSource", JSON_BUILD_STRING(hostname_source_to_string(c
->hostname_source
))),
1353 JSON_BUILD_PAIR("IconName", JSON_BUILD_STRING(in
?: c
->data
[PROP_ICON_NAME
])),
1354 JSON_BUILD_PAIR("Chassis", JSON_BUILD_STRING(chassis
)),
1355 JSON_BUILD_PAIR("Deployment", JSON_BUILD_STRING(c
->data
[PROP_DEPLOYMENT
])),
1356 JSON_BUILD_PAIR("Location", JSON_BUILD_STRING(c
->data
[PROP_LOCATION
])),
1357 JSON_BUILD_PAIR("KernelName", JSON_BUILD_STRING(u
.sysname
)),
1358 JSON_BUILD_PAIR("KernelRelease", JSON_BUILD_STRING(u
.release
)),
1359 JSON_BUILD_PAIR("KernelVersion", JSON_BUILD_STRING(u
.version
)),
1360 JSON_BUILD_PAIR("OperatingSystemPrettyName", JSON_BUILD_STRING(c
->data
[PROP_OS_PRETTY_NAME
])),
1361 JSON_BUILD_PAIR("OperatingSystemCPEName", JSON_BUILD_STRING(c
->data
[PROP_OS_CPE_NAME
])),
1362 JSON_BUILD_PAIR("OperatingSystemHomeURL", JSON_BUILD_STRING(c
->data
[PROP_OS_HOME_URL
])),
1363 JSON_BUILD_PAIR_FINITE_USEC("OperatingSystemSupportEnd", eol
),
1364 JSON_BUILD_PAIR("HardwareVendor", JSON_BUILD_STRING(vendor
?: c
->data
[PROP_HARDWARE_VENDOR
])),
1365 JSON_BUILD_PAIR("HardwareModel", JSON_BUILD_STRING(model
?: c
->data
[PROP_HARDWARE_MODEL
])),
1366 JSON_BUILD_PAIR("HardwareSerial", JSON_BUILD_STRING(serial
)),
1367 JSON_BUILD_PAIR("FirmwareVersion", JSON_BUILD_STRING(firmware_version
)),
1368 JSON_BUILD_PAIR("FirmwareVendor", JSON_BUILD_STRING(firmware_vendor
)),
1369 JSON_BUILD_PAIR_FINITE_USEC("FirmwareDate", firmware_date
),
1370 JSON_BUILD_PAIR_CONDITION(!sd_id128_is_null(product_uuid
), "ProductUUID", JSON_BUILD_ID128(product_uuid
)),
1371 JSON_BUILD_PAIR_CONDITION(sd_id128_is_null(product_uuid
), "ProductUUID", JSON_BUILD_NULL
)));
1374 return log_error_errno(r
, "Failed to build JSON data: %m");
1376 r
= json_variant_format(v
, 0, &text
);
1378 return log_error_errno(r
, "Failed to format JSON data: %m");
1380 r
= sd_bus_message_new_method_return(m
, &reply
);
1384 r
= sd_bus_message_append(reply
, "s", text
);
1388 return sd_bus_send(NULL
, reply
, NULL
);
1391 static const sd_bus_vtable hostname_vtable
[] = {
1392 SD_BUS_VTABLE_START(0),
1393 SD_BUS_PROPERTY("Hostname", "s", property_get_hostname
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1394 SD_BUS_PROPERTY("StaticHostname", "s", property_get_static_hostname
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1395 SD_BUS_PROPERTY("PrettyHostname", "s", property_get_machine_info_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_PRETTY_HOSTNAME
, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1396 SD_BUS_PROPERTY("DefaultHostname", "s", property_get_default_hostname
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1397 SD_BUS_PROPERTY("HostnameSource", "s", property_get_hostname_source
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1398 SD_BUS_PROPERTY("IconName", "s", property_get_icon_name
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1399 SD_BUS_PROPERTY("Chassis", "s", property_get_chassis
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1400 SD_BUS_PROPERTY("Deployment", "s", property_get_machine_info_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_DEPLOYMENT
, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1401 SD_BUS_PROPERTY("Location", "s", property_get_machine_info_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_LOCATION
, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1402 SD_BUS_PROPERTY("KernelName", "s", property_get_uname_field
, offsetof(struct utsname
, sysname
), SD_BUS_VTABLE_ABSOLUTE_OFFSET
|SD_BUS_VTABLE_PROPERTY_CONST
),
1403 SD_BUS_PROPERTY("KernelRelease", "s", property_get_uname_field
, offsetof(struct utsname
, release
), SD_BUS_VTABLE_ABSOLUTE_OFFSET
|SD_BUS_VTABLE_PROPERTY_CONST
),
1404 SD_BUS_PROPERTY("KernelVersion", "s", property_get_uname_field
, offsetof(struct utsname
, version
), SD_BUS_VTABLE_ABSOLUTE_OFFSET
|SD_BUS_VTABLE_PROPERTY_CONST
),
1405 SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", property_get_os_release_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_OS_PRETTY_NAME
, SD_BUS_VTABLE_PROPERTY_CONST
),
1406 SD_BUS_PROPERTY("OperatingSystemCPEName", "s", property_get_os_release_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_OS_CPE_NAME
, SD_BUS_VTABLE_PROPERTY_CONST
),
1407 SD_BUS_PROPERTY("OperatingSystemSupportEnd", "t", property_get_os_support_end
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1408 SD_BUS_PROPERTY("HomeURL", "s", property_get_os_release_field
, offsetof(Context
, data
) + sizeof(char*) * PROP_OS_HOME_URL
, SD_BUS_VTABLE_PROPERTY_CONST
),
1409 SD_BUS_PROPERTY("HardwareVendor", "s", property_get_hardware_vendor
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1410 SD_BUS_PROPERTY("HardwareModel", "s", property_get_hardware_model
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1411 SD_BUS_PROPERTY("FirmwareVersion", "s", property_get_firmware_version
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1412 SD_BUS_PROPERTY("FirmwareVendor", "s", property_get_firmware_vendor
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1413 SD_BUS_PROPERTY("FirmwareDate", "t", property_get_firmware_date
, 0, SD_BUS_VTABLE_PROPERTY_CONST
),
1415 SD_BUS_METHOD_WITH_ARGS("SetHostname",
1416 SD_BUS_ARGS("s", hostname
, "b", interactive
),
1418 method_set_hostname
,
1419 SD_BUS_VTABLE_UNPRIVILEGED
),
1420 SD_BUS_METHOD_WITH_ARGS("SetStaticHostname",
1421 SD_BUS_ARGS("s", hostname
, "b", interactive
),
1423 method_set_static_hostname
,
1424 SD_BUS_VTABLE_UNPRIVILEGED
),
1425 SD_BUS_METHOD_WITH_ARGS("SetPrettyHostname",
1426 SD_BUS_ARGS("s", hostname
, "b", interactive
),
1428 method_set_pretty_hostname
,
1429 SD_BUS_VTABLE_UNPRIVILEGED
),
1430 SD_BUS_METHOD_WITH_ARGS("SetIconName",
1431 SD_BUS_ARGS("s", icon
, "b", interactive
),
1433 method_set_icon_name
,
1434 SD_BUS_VTABLE_UNPRIVILEGED
),
1435 SD_BUS_METHOD_WITH_ARGS("SetChassis",
1436 SD_BUS_ARGS("s", chassis
, "b", interactive
),
1439 SD_BUS_VTABLE_UNPRIVILEGED
),
1440 SD_BUS_METHOD_WITH_ARGS("SetDeployment",
1441 SD_BUS_ARGS("s", deployment
, "b", interactive
),
1443 method_set_deployment
,
1444 SD_BUS_VTABLE_UNPRIVILEGED
),
1445 SD_BUS_METHOD_WITH_ARGS("SetLocation",
1446 SD_BUS_ARGS("s", location
, "b", interactive
),
1448 method_set_location
,
1449 SD_BUS_VTABLE_UNPRIVILEGED
),
1450 SD_BUS_METHOD_WITH_ARGS("GetProductUUID",
1451 SD_BUS_ARGS("b", interactive
),
1452 SD_BUS_RESULT("ay", uuid
),
1453 method_get_product_uuid
,
1454 SD_BUS_VTABLE_UNPRIVILEGED
),
1455 SD_BUS_METHOD_WITH_ARGS("GetHardwareSerial",
1457 SD_BUS_RESULT("s", serial
),
1458 method_get_hardware_serial
,
1459 SD_BUS_VTABLE_UNPRIVILEGED
),
1460 SD_BUS_METHOD_WITH_ARGS("Describe",
1462 SD_BUS_RESULT("s", json
),
1464 SD_BUS_VTABLE_UNPRIVILEGED
),
1469 static const BusObjectImplementation manager_object
= {
1470 "/org/freedesktop/hostname1",
1471 "org.freedesktop.hostname1",
1472 .vtables
= BUS_VTABLES(hostname_vtable
),
1475 static int connect_bus(Context
*c
, sd_event
*event
, sd_bus
**ret
) {
1476 _cleanup_(sd_bus_flush_close_unrefp
) sd_bus
*bus
= NULL
;
1483 r
= sd_bus_default_system(&bus
);
1485 return log_error_errno(r
, "Failed to get system bus connection: %m");
1487 r
= bus_add_implementation(bus
, &manager_object
, c
);
1491 r
= bus_log_control_api_register(bus
);
1495 r
= sd_bus_request_name_async(bus
, NULL
, "org.freedesktop.hostname1", 0, NULL
, NULL
);
1497 return log_error_errno(r
, "Failed to request name: %m");
1499 r
= sd_bus_attach_event(bus
, event
, 0);
1501 return log_error_errno(r
, "Failed to attach bus to event loop: %m");
1503 *ret
= TAKE_PTR(bus
);
1507 static int run(int argc
, char *argv
[]) {
1508 _cleanup_(context_destroy
) Context context
= {
1509 .hostname_source
= _HOSTNAME_INVALID
, /* appropriate value will be set later */
1511 _cleanup_(sd_event_unrefp
) sd_event
*event
= NULL
;
1512 _cleanup_(sd_bus_flush_close_unrefp
) sd_bus
*bus
= NULL
;
1517 r
= service_parse_argv("systemd-hostnamed.service",
1518 "Manage the system hostname and related metadata.",
1519 BUS_IMPLEMENTATIONS(&manager_object
,
1520 &log_control_object
),
1527 r
= mac_selinux_init();
1531 assert_se(sigprocmask_many(SIG_BLOCK
, NULL
, SIGTERM
, SIGINT
, -1) >= 0);
1533 r
= sd_event_default(&event
);
1535 return log_error_errno(r
, "Failed to allocate event loop: %m");
1537 (void) sd_event_set_watchdog(event
, true);
1539 r
= sd_event_add_signal(event
, NULL
, SIGINT
, NULL
, NULL
);
1541 return log_error_errno(r
, "Failed to install SIGINT handler: %m");
1543 r
= sd_event_add_signal(event
, NULL
, SIGTERM
, NULL
, NULL
);
1545 return log_error_errno(r
, "Failed to install SIGTERM handler: %m");
1547 r
= connect_bus(&context
, event
, &bus
);
1551 r
= bus_event_loop_with_idle(event
, bus
, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC
, NULL
, NULL
);
1553 return log_error_errno(r
, "Failed to run event loop: %m");
1558 DEFINE_MAIN_FUNCTION(run
);