| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <errno.h> |
| #include <sys/utsname.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include "alloc-util.h" |
| #include "bus-common-errors.h" |
| #include "bus-get-properties.h" |
| #include "bus-log-control-api.h" |
| #include "bus-polkit.h" |
| #include "constants.h" |
| #include "env-file-label.h" |
| #include "env-file.h" |
| #include "env-util.h" |
| #include "fileio-label.h" |
| #include "fileio.h" |
| #include "hostname-setup.h" |
| #include "hostname-util.h" |
| #include "id128-util.h" |
| #include "json.h" |
| #include "main-func.h" |
| #include "missing_capability.h" |
| #include "nscd-flush.h" |
| #include "nulstr-util.h" |
| #include "os-util.h" |
| #include "parse-util.h" |
| #include "path-util.h" |
| #include "sd-device.h" |
| #include "selinux-util.h" |
| #include "service-util.h" |
| #include "signal-util.h" |
| #include "stat-util.h" |
| #include "string-table.h" |
| #include "strv.h" |
| #include "user-util.h" |
| #include "virt.h" |
| |
| #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
| |
| /* Properties we cache are indexed by an enum, to make invalidation easy and systematic (as we can iterate |
| * through them all, and they are uniformly strings). */ |
| typedef enum { |
| /* Read from /etc/hostname */ |
| PROP_STATIC_HOSTNAME, |
| |
| /* Read from /etc/machine-info */ |
| PROP_PRETTY_HOSTNAME, |
| PROP_ICON_NAME, |
| PROP_CHASSIS, |
| PROP_DEPLOYMENT, |
| PROP_LOCATION, |
| PROP_HARDWARE_VENDOR, |
| PROP_HARDWARE_MODEL, |
| |
| /* Read from /etc/os-release (or /usr/lib/os-release) */ |
| PROP_OS_PRETTY_NAME, |
| PROP_OS_CPE_NAME, |
| PROP_OS_HOME_URL, |
| PROP_OS_SUPPORT_END, |
| _PROP_MAX, |
| _PROP_INVALID = -EINVAL, |
| } HostProperty; |
| |
| typedef struct Context { |
| char *data[_PROP_MAX]; |
| |
| HostnameSource hostname_source; |
| |
| struct stat etc_hostname_stat; |
| struct stat etc_os_release_stat; |
| struct stat etc_machine_info_stat; |
| |
| Hashmap *polkit_registry; |
| } Context; |
| |
| static void context_reset(Context *c, uint64_t mask) { |
| assert(c); |
| |
| for (int p = 0; p < _PROP_MAX; p++) { |
| if (!FLAGS_SET(mask, UINT64_C(1) << p)) |
| continue; |
| |
| c->data[p] = mfree(c->data[p]); |
| } |
| } |
| |
| static void context_destroy(Context *c) { |
| assert(c); |
| |
| context_reset(c, UINT64_MAX); |
| bus_verify_polkit_async_registry_free(c->polkit_registry); |
| } |
| |
| static void context_read_etc_hostname(Context *c) { |
| struct stat current_stat = {}; |
| int r; |
| |
| assert(c); |
| |
| if (stat("/etc/hostname", ¤t_stat) >= 0 && |
| stat_inode_unmodified(&c->etc_hostname_stat, ¤t_stat)) |
| return; |
| |
| context_reset(c, UINT64_C(1) << PROP_STATIC_HOSTNAME); |
| |
| r = read_etc_hostname(NULL, &c->data[PROP_STATIC_HOSTNAME]); |
| if (r < 0 && r != -ENOENT) |
| log_warning_errno(r, "Failed to read /etc/hostname, ignoring: %m"); |
| |
| c->etc_hostname_stat = current_stat; |
| } |
| |
| static void context_read_machine_info(Context *c) { |
| struct stat current_stat = {}; |
| int r; |
| |
| assert(c); |
| |
| if (stat("/etc/machine-info", ¤t_stat) >= 0 && |
| stat_inode_unmodified(&c->etc_machine_info_stat, ¤t_stat)) |
| return; |
| |
| context_reset(c, |
| (UINT64_C(1) << PROP_PRETTY_HOSTNAME) | |
| (UINT64_C(1) << PROP_ICON_NAME) | |
| (UINT64_C(1) << PROP_CHASSIS) | |
| (UINT64_C(1) << PROP_DEPLOYMENT) | |
| (UINT64_C(1) << PROP_LOCATION) | |
| (UINT64_C(1) << PROP_HARDWARE_VENDOR) | |
| (UINT64_C(1) << PROP_HARDWARE_MODEL)); |
| |
| r = parse_env_file(NULL, "/etc/machine-info", |
| "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
| "ICON_NAME", &c->data[PROP_ICON_NAME], |
| "CHASSIS", &c->data[PROP_CHASSIS], |
| "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
| "LOCATION", &c->data[PROP_LOCATION], |
| "HARDWARE_VENDOR", &c->data[PROP_HARDWARE_VENDOR], |
| "HARDWARE_MODEL", &c->data[PROP_HARDWARE_MODEL]); |
| if (r < 0 && r != -ENOENT) |
| log_warning_errno(r, "Failed to read /etc/machine-info, ignoring: %m"); |
| |
| c->etc_machine_info_stat = current_stat; |
| } |
| |
| static void context_read_os_release(Context *c) { |
| _cleanup_free_ char *os_name = NULL, *os_pretty_name = NULL; |
| struct stat current_stat = {}; |
| int r; |
| |
| assert(c); |
| |
| if ((stat("/etc/os-release", ¤t_stat) >= 0 || |
| stat("/usr/lib/os-release", ¤t_stat) >= 0) && |
| stat_inode_unmodified(&c->etc_os_release_stat, ¤t_stat)) |
| return; |
| |
| context_reset(c, |
| (UINT64_C(1) << PROP_OS_PRETTY_NAME) | |
| (UINT64_C(1) << PROP_OS_CPE_NAME) | |
| (UINT64_C(1) << PROP_OS_HOME_URL) | |
| (UINT64_C(1) << PROP_OS_SUPPORT_END)); |
| |
| r = parse_os_release(NULL, |
| "PRETTY_NAME", &os_pretty_name, |
| "NAME", &os_name, |
| "CPE_NAME", &c->data[PROP_OS_CPE_NAME], |
| "HOME_URL", &c->data[PROP_OS_HOME_URL], |
| "SUPPORT_END", &c->data[PROP_OS_SUPPORT_END]); |
| if (r < 0 && r != -ENOENT) |
| log_warning_errno(r, "Failed to read os-release file, ignoring: %m"); |
| |
| if (free_and_strdup(&c->data[PROP_OS_PRETTY_NAME], os_release_pretty_name(os_pretty_name, os_name)) < 0) |
| log_oom(); |
| |
| c->etc_os_release_stat = current_stat; |
| } |
| |
| static int get_dmi_data(const char *database_key, const char *regular_key, char **ret) { |
| _cleanup_(sd_device_unrefp) sd_device *device = NULL; |
| _cleanup_free_ char *b = NULL; |
| const char *s = NULL; |
| int r; |
| |
| r = sd_device_new_from_syspath(&device, "/sys/class/dmi/id"); |
| if (r < 0) |
| return log_debug_errno(r, "Failed to open /sys/class/dmi/id device, ignoring: %m"); |
| |
| if (database_key) |
| (void) sd_device_get_property_value(device, database_key, &s); |
| if (!s && regular_key) |
| (void) sd_device_get_property_value(device, regular_key, &s); |
| |
| if (!ret) |
| return !!s; |
| |
| if (s) { |
| b = strdup(s); |
| if (!b) |
| return -ENOMEM; |
| } |
| |
| *ret = TAKE_PTR(b); |
| return !!s; |
| } |
| |
| static int get_hardware_vendor(char **ret) { |
| return get_dmi_data("ID_VENDOR_FROM_DATABASE", "ID_VENDOR", ret); |
| } |
| |
| static int get_hardware_model(char **ret) { |
| return get_dmi_data("ID_MODEL_FROM_DATABASE", "ID_MODEL", ret); |
| } |
| |
| static int get_hardware_firmware_data(const char *sysattr, char **ret) { |
| _cleanup_(sd_device_unrefp) sd_device *device = NULL; |
| _cleanup_free_ char *b = NULL; |
| const char *s = NULL; |
| int r; |
| |
| assert(sysattr); |
| |
| r = sd_device_new_from_syspath(&device, "/sys/class/dmi/id"); |
| if (r < 0) |
| return log_debug_errno(r, "Failed to open /sys/class/dmi/id device, ignoring: %m"); |
| |
| (void) sd_device_get_sysattr_value(device, sysattr, &s); |
| if (!isempty(s)) { |
| b = strdup(s); |
| if (!b) |
| return -ENOMEM; |
| } |
| |
| if (ret) |
| *ret = TAKE_PTR(b); |
| |
| return !isempty(s); |
| } |
| |
| static int get_hardware_serial(char **ret) { |
| int r; |
| |
| r = get_hardware_firmware_data("product_serial", ret); |
| if (r <= 0) |
| return get_hardware_firmware_data("board_serial", ret); |
| |
| return r; |
| } |
| |
| static int get_firmware_version(char **ret) { |
| return get_hardware_firmware_data("bios_version", ret); |
| } |
| |
| static int get_firmware_vendor(char **ret) { |
| return get_hardware_firmware_data("bios_vendor", ret); |
| } |
| |
| static int get_firmware_date(usec_t *ret) { |
| _cleanup_free_ char *bios_date = NULL, *month = NULL, *day = NULL, *year = NULL; |
| int r; |
| |
| assert(ret); |
| |
| r = get_hardware_firmware_data("bios_date", &bios_date); |
| if (r < 0) |
| return r; |
| if (r == 0) { |
| *ret = USEC_INFINITY; |
| return 0; |
| } |
| |
| const char *p = bios_date; |
| r = extract_many_words(&p, "/", EXTRACT_DONT_COALESCE_SEPARATORS, &month, &day, &year, NULL); |
| if (r < 0) |
| return r; |
| if (r != 3) /* less than three args read? */ |
| return -EINVAL; |
| if (!isempty(p)) /* more left in the string? */ |
| return -EINVAL; |
| |
| unsigned m, d, y; |
| r = safe_atou(month, &m); |
| if (r < 0) |
| return r; |
| if (m < 1 || m > 12) |
| return -EINVAL; |
| m -= 1; |
| |
| r = safe_atou(day, &d); |
| if (r < 0) |
| return r; |
| if (d < 1 || d > 31) |
| return -EINVAL; |
| |
| r = safe_atou(year, &y); |
| if (r < 0) |
| return r; |
| if (y < 1970 || y > (unsigned) INT_MAX) |
| return -EINVAL; |
| y -= 1900; |
| |
| struct tm tm = { |
| .tm_mday = d, |
| .tm_mon = m, |
| .tm_year = y, |
| }; |
| time_t v = timegm(&tm); |
| if (v == (time_t) -1) |
| return -errno; |
| if (tm.tm_mday != (int) d || tm.tm_mon != (int) m || tm.tm_year != (int) y) |
| return -EINVAL; /* date was not normalized? (e.g. "30th of feb") */ |
| |
| *ret = (usec_t) v * USEC_PER_SEC; |
| |
| return 0; |
| } |
| |
| static const char* valid_chassis(const char *chassis) { |
| assert(chassis); |
| |
| return nulstr_get( |
| "vm\0" |
| "container\0" |
| "desktop\0" |
| "laptop\0" |
| "convertible\0" |
| "server\0" |
| "tablet\0" |
| "handset\0" |
| "watch\0" |
| "embedded\0", |
| chassis); |
| } |
| |
| static bool valid_deployment(const char *deployment) { |
| assert(deployment); |
| |
| return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
| } |
| |
| static const char* fallback_chassis(void) { |
| const char *chassis; |
| _cleanup_free_ char *type = NULL; |
| Virtualization v; |
| unsigned t; |
| int r; |
| |
| v = detect_virtualization(); |
| if (v < 0) |
| log_debug_errno(v, "Failed to detect virtualization, ignoring: %m"); |
| else if (VIRTUALIZATION_IS_VM(v)) |
| return "vm"; |
| else if (VIRTUALIZATION_IS_CONTAINER(v)) |
| return "container"; |
| |
| r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
| if (r < 0) { |
| log_debug_errno(r, "Failed to read DMI chassis type, ignoring: %m"); |
| goto try_acpi; |
| } |
| |
| r = safe_atou(type, &t); |
| if (r < 0) { |
| log_debug_errno(r, "Failed to parse DMI chassis type \"%s\", ignoring: %m", type); |
| goto try_acpi; |
| } |
| |
| /* We only list the really obvious cases here. The DMI data is unreliable enough, so let's not do any |
| * additional guesswork on top of that. |
| * |
| * See the SMBIOS Specification 3.5.0 section 7.4.1 for details about the values listed here: |
| * |
| * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.5.0.pdf |
| */ |
| |
| switch (t) { |
| |
| case 0x03: /* Desktop */ |
| case 0x04: /* Low Profile Desktop */ |
| case 0x06: /* Mini Tower */ |
| case 0x07: /* Tower */ |
| case 0x0D: /* All in one (i.e. PC built into monitor) */ |
| case 0x23: /* Mini PC */ |
| case 0x24: /* Stick PC */ |
| return "desktop"; |
| |
| case 0x8: /* Portable */ |
| case 0x9: /* Laptop */ |
| case 0xA: /* Notebook */ |
| case 0xE: /* Sub Notebook */ |
| return "laptop"; |
| |
| case 0xB: /* Hand Held */ |
| return "handset"; |
| |
| case 0x11: /* Main Server Chassis */ |
| case 0x1C: /* Blade */ |
| case 0x1D: /* Blade Enclosure */ |
| return "server"; |
| |
| case 0x1E: /* Tablet */ |
| return "tablet"; |
| |
| case 0x1F: /* Convertible */ |
| case 0x20: /* Detachable */ |
| return "convertible"; |
| |
| case 0x21: /* IoT Gateway */ |
| case 0x22: /* Embedded PC */ |
| return "embedded"; |
| |
| default: |
| log_debug("Unhandled DMI chassis type 0x%02x, ignoring.", t); |
| } |
| |
| try_acpi: |
| type = mfree(type); |
| r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); |
| if (r < 0) { |
| log_debug_errno(r, "Failed read ACPI PM profile, ignoring: %m"); |
| goto try_devicetree; |
| } |
| |
| r = safe_atou(type, &t); |
| if (r < 0) { |
| log_debug_errno(r, "Failed parse ACPI PM profile \"%s\", ignoring: %m", type); |
| goto try_devicetree; |
| } |
| |
| /* We only list the really obvious cases here as the ACPI data is not really super reliable. |
| * |
| * See the ACPI 5.0 Spec Section 5.2.9.1 for details: |
| * |
| * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf |
| */ |
| |
| switch (t) { |
| |
| case 1: /* Desktop */ |
| case 3: /* Workstation */ |
| case 6: /* Appliance PC */ |
| return "desktop"; |
| |
| case 2: /* Mobile */ |
| return "laptop"; |
| |
| case 4: /* Enterprise Server */ |
| case 5: /* SOHO Server */ |
| case 7: /* Performance Server */ |
| return "server"; |
| |
| case 8: /* Tablet */ |
| return "tablet"; |
| |
| default: |
| log_debug("Unhandled ACPI PM profile 0x%02x, ignoring.", t); |
| } |
| |
| try_devicetree: |
| type = mfree(type); |
| r = read_one_line_file("/proc/device-tree/chassis-type", &type); |
| if (r < 0) { |
| log_debug_errno(r, "Failed to read device-tree chassis type, ignoring: %m"); |
| return NULL; |
| } |
| |
| /* Note that the Devicetree specification uses the very same vocabulary |
| * of chassis types as we do, hence we do not need to translate these types: |
| * |
| * https://github.com/devicetree-org/devicetree-specification/blob/master/source/chapter3-devicenodes.rst */ |
| chassis = valid_chassis(type); |
| if (!chassis) |
| log_debug("Invalid device-tree chassis type \"%s\", ignoring.", type); |
| return chassis; |
| } |
| |
| static char* context_get_chassis(Context *c) { |
| const char *fallback; |
| char *dmi; |
| |
| assert(c); |
| |
| if (!isempty(c->data[PROP_CHASSIS])) |
| return strdup(c->data[PROP_CHASSIS]); |
| |
| if (get_dmi_data("ID_CHASSIS", NULL, &dmi) > 0) |
| return dmi; |
| |
| fallback = fallback_chassis(); |
| if (fallback) |
| return strdup(fallback); |
| |
| return NULL; |
| } |
| |
| static char* context_fallback_icon_name(Context *c) { |
| _cleanup_free_ char *chassis = NULL; |
| |
| assert(c); |
| |
| chassis = context_get_chassis(c); |
| if (chassis) |
| return strjoin("computer-", chassis); |
| |
| return strdup("computer"); |
| } |
| |
| static int context_update_kernel_hostname( |
| Context *c, |
| const char *transient_hn) { |
| |
| _cleanup_free_ char *_hn_free = NULL; |
| const char *hn; |
| HostnameSource hns; |
| int r; |
| |
| assert(c); |
| |
| /* /etc/hostname has the highest preference ... */ |
| if (c->data[PROP_STATIC_HOSTNAME]) { |
| hn = c->data[PROP_STATIC_HOSTNAME]; |
| hns = HOSTNAME_STATIC; |
| |
| /* ... the transient hostname, (ie: DHCP) comes next ... */ |
| } else if (transient_hn) { |
| hn = transient_hn; |
| hns = HOSTNAME_TRANSIENT; |
| |
| /* ... and the ultimate fallback */ |
| } else { |
| hn = _hn_free = get_default_hostname(); |
| if (!hn) |
| return log_oom(); |
| |
| hns = HOSTNAME_DEFAULT; |
| } |
| |
| r = sethostname_idempotent(hn); |
| if (r < 0) |
| return log_error_errno(r, "Failed to set hostname: %m"); |
| |
| if (c->hostname_source != hns) { |
| c->hostname_source = hns; |
| r = 1; |
| } |
| |
| (void) nscd_flush_cache(STRV_MAKE("hosts")); |
| |
| if (r == 0) |
| log_debug("Hostname was already set to <%s>.", hn); |
| else { |
| log_info("Hostname set to <%s> (%s)", hn, hostname_source_to_string(hns)); |
| |
| hostname_update_source_hint(hn, hns); |
| } |
| |
| return r; /* 0 if no change, 1 if something was done */ |
| } |
| |
| static void unset_statp(struct stat **p) { |
| if (!*p) |
| return; |
| |
| **p = (struct stat) {}; |
| } |
| |
| static int context_write_data_static_hostname(Context *c) { |
| _cleanup_(unset_statp) struct stat *s = NULL; |
| int r; |
| |
| assert(c); |
| |
| /* Make sure that if we fail here, we invalidate the cached information, since it was updated |
| * already, even if we can't make it hit the disk. */ |
| s = &c->etc_hostname_stat; |
| |
| if (isempty(c->data[PROP_STATIC_HOSTNAME])) { |
| if (unlink("/etc/hostname") < 0 && errno != ENOENT) |
| return -errno; |
| |
| TAKE_PTR(s); |
| return 0; |
| } |
| |
| r = write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
| if (r < 0) |
| return r; |
| |
| TAKE_PTR(s); |
| return 0; |
| } |
| |
| static int context_write_data_machine_info(Context *c) { |
| _cleanup_(unset_statp) struct stat *s = NULL; |
| static const char * const name[_PROP_MAX] = { |
| [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", |
| [PROP_ICON_NAME] = "ICON_NAME", |
| [PROP_CHASSIS] = "CHASSIS", |
| [PROP_DEPLOYMENT] = "DEPLOYMENT", |
| [PROP_LOCATION] = "LOCATION", |
| }; |
| _cleanup_strv_free_ char **l = NULL; |
| int r; |
| |
| assert(c); |
| |
| /* Make sure that if we fail here, we invalidate the cached information, since it was updated |
| * already, even if we can't make it hit the disk. */ |
| s = &c->etc_machine_info_stat; |
| |
| r = load_env_file(NULL, "/etc/machine-info", &l); |
| if (r < 0 && r != -ENOENT) |
| return r; |
| |
| for (int p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
| assert(name[p]); |
| |
| r = strv_env_assign(&l, name[p], empty_to_null(c->data[p])); |
| if (r < 0) |
| return r; |
| } |
| |
| if (strv_isempty(l)) { |
| if (unlink("/etc/machine-info") < 0 && errno != ENOENT) |
| return -errno; |
| |
| TAKE_PTR(s); |
| return 0; |
| } |
| |
| r = write_env_file_label("/etc/machine-info", l); |
| if (r < 0) |
| return r; |
| |
| TAKE_PTR(s); |
| return 0; |
| } |
| |
| static int property_get_hardware_property( |
| sd_bus_message *reply, |
| Context *c, |
| HostProperty prop, |
| int (*getter)(char **)) { |
| |
| _cleanup_free_ char *from_dmi = NULL; |
| |
| assert(reply); |
| assert(c); |
| assert(IN_SET(prop, PROP_HARDWARE_VENDOR, PROP_HARDWARE_MODEL)); |
| assert(getter); |
| |
| context_read_machine_info(c); |
| |
| if (isempty(c->data[prop])) |
| (void) getter(&from_dmi); |
| |
| return sd_bus_message_append(reply, "s", from_dmi ?: c->data[prop]); |
| } |
| |
| static int property_get_hardware_vendor( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| return property_get_hardware_property(reply, userdata, PROP_HARDWARE_VENDOR, get_hardware_vendor); |
| } |
| |
| static int property_get_hardware_model( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| return property_get_hardware_property(reply, userdata, PROP_HARDWARE_MODEL, get_hardware_model); |
| } |
| |
| static int property_get_firmware_version( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *firmware_version = NULL; |
| |
| (void) get_firmware_version(&firmware_version); |
| |
| return sd_bus_message_append(reply, "s", firmware_version); |
| } |
| |
| static int property_get_firmware_vendor( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *firmware_vendor = NULL; |
| |
| (void) get_firmware_vendor(&firmware_vendor); |
| |
| return sd_bus_message_append(reply, "s", firmware_vendor); |
| } |
| |
| static int property_get_firmware_date( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| usec_t firmware_date = USEC_INFINITY; |
| |
| (void) get_firmware_date(&firmware_date); |
| |
| return sd_bus_message_append(reply, "t", firmware_date); |
| } |
| static int property_get_hostname( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *hn = NULL; |
| int r; |
| |
| r = gethostname_strict(&hn); |
| if (r < 0) { |
| if (r != -ENXIO) |
| return r; |
| |
| hn = get_default_hostname(); |
| if (!hn) |
| return -ENOMEM; |
| } |
| |
| return sd_bus_message_append(reply, "s", hn); |
| } |
| |
| static int property_get_static_hostname( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Context *c = ASSERT_PTR(userdata); |
| |
| context_read_etc_hostname(c); |
| |
| return sd_bus_message_append(reply, "s", c->data[PROP_STATIC_HOSTNAME]); |
| } |
| |
| static int property_get_default_hostname( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *hn = NULL; |
| |
| hn = get_default_hostname(); |
| if (!hn) |
| return log_oom(); |
| |
| return sd_bus_message_append(reply, "s", hn); |
| } |
| |
| static void context_determine_hostname_source(Context *c) { |
| _cleanup_free_ char *hostname = NULL; |
| int r; |
| |
| assert(c); |
| |
| if (c->hostname_source >= 0) |
| return; |
| |
| (void) gethostname_full(GET_HOSTNAME_ALLOW_LOCALHOST, &hostname); |
| |
| if (streq_ptr(hostname, c->data[PROP_STATIC_HOSTNAME])) |
| c->hostname_source = HOSTNAME_STATIC; |
| else { |
| _cleanup_free_ char *fallback = NULL; |
| |
| /* If the hostname was not set by us, try to figure out where it came from. If we set it to |
| * the default hostname, the file will tell us. We compare the string because it is possible |
| * that the hostname was set by an older version that had a different fallback, in the initrd |
| * or before we reexecuted. */ |
| |
| r = read_one_line_file("/run/systemd/default-hostname", &fallback); |
| if (r < 0 && r != -ENOENT) |
| log_warning_errno(r, "Failed to read /run/systemd/default-hostname, ignoring: %m"); |
| |
| if (streq_ptr(fallback, hostname)) |
| c->hostname_source = HOSTNAME_DEFAULT; |
| else |
| c->hostname_source = HOSTNAME_TRANSIENT; |
| } |
| } |
| |
| static int property_get_hostname_source( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Context *c = ASSERT_PTR(userdata); |
| |
| context_read_etc_hostname(c); |
| context_determine_hostname_source(c); |
| |
| return sd_bus_message_append(reply, "s", hostname_source_to_string(c->hostname_source)); |
| } |
| |
| static int property_get_machine_info_field( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| sd_bus_slot *slot; |
| Context *c; |
| |
| /* Acquire the context object without this property's userdata offset added. Explanation: we want |
| * access to two pointers here: a) the main context object we cache all properties in, and b) the |
| * pointer to the property field inside the context object that we are supposed to update and |
| * use. The latter (b) we get in the 'userdata' function parameter, and sd-bus calculates that for us |
| * from the 'userdata' pointer we supplied when the vtable was registered, with the offset we |
| * specified in the vtable added on top. To get the former (a) we need the 'userdata' pointer from |
| * the vtable registration directly, without the offset added. Hence we ask sd-bus what the slot |
| * object is (which encapsulates the vtable registration), and then query the 'userdata' field |
| * directly off it. */ |
| assert_se(slot = sd_bus_get_current_slot(bus)); |
| assert_se(c = sd_bus_slot_get_userdata(slot)); |
| |
| context_read_machine_info(c); |
| |
| return sd_bus_message_append(reply, "s", *(char**) userdata); |
| } |
| |
| static int property_get_os_release_field( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| sd_bus_slot *slot; |
| Context *c; |
| |
| /* As above, acquire the current context without this property's userdata offset added. */ |
| assert_se(slot = sd_bus_get_current_slot(bus)); |
| assert_se(c = sd_bus_slot_get_userdata(slot)); |
| |
| context_read_os_release(c); |
| |
| return sd_bus_message_append(reply, "s", *(char**) userdata); |
| } |
| |
| static int property_get_os_support_end( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Context *c = userdata; |
| usec_t eol = USEC_INFINITY; |
| |
| context_read_os_release(c); |
| |
| if (c->data[PROP_OS_SUPPORT_END]) |
| (void) os_release_support_ended(c->data[PROP_OS_SUPPORT_END], /* quiet= */ false, &eol); |
| |
| return sd_bus_message_append(reply, "t", eol); |
| } |
| |
| static int property_get_icon_name( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *n = NULL; |
| Context *c = userdata; |
| const char *name; |
| |
| context_read_machine_info(c); |
| |
| if (isempty(c->data[PROP_ICON_NAME])) |
| name = n = context_fallback_icon_name(c); |
| else |
| name = c->data[PROP_ICON_NAME]; |
| |
| if (!name) |
| return -ENOMEM; |
| |
| return sd_bus_message_append(reply, "s", name); |
| } |
| |
| static int property_get_chassis( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *chassis = NULL; |
| Context *c = userdata; |
| |
| context_read_machine_info(c); |
| |
| chassis = context_get_chassis(c); |
| |
| return sd_bus_message_append(reply, "s", chassis); |
| } |
| |
| static int property_get_uname_field( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| struct utsname u; |
| |
| assert_se(uname(&u) >= 0); |
| |
| return sd_bus_message_append(reply, "s", (char*) &u + PTR_TO_SIZE(userdata)); |
| } |
| |
| static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| Context *c = ASSERT_PTR(userdata); |
| const char *name; |
| int interactive, r; |
| |
| assert(m); |
| |
| r = sd_bus_message_read(m, "sb", &name, &interactive); |
| if (r < 0) |
| return r; |
| |
| name = empty_to_null(name); |
| |
| /* We always go through with the procedure below without comparing to the current hostname, because |
| * we might want to adjust hostname source information even if the actual hostname is unchanged. */ |
| |
| if (name && !hostname_is_valid(name, 0)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
| |
| context_read_etc_hostname(c); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.hostname1.set-hostname", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = context_update_kernel_hostname(c, name); |
| if (r < 0) |
| return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
| else if (r > 0) |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), |
| "/org/freedesktop/hostname1", "org.freedesktop.hostname1", |
| "Hostname", "HostnameSource", NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| Context *c = ASSERT_PTR(userdata); |
| const char *name; |
| int interactive; |
| int r; |
| |
| assert(m); |
| |
| r = sd_bus_message_read(m, "sb", &name, &interactive); |
| if (r < 0) |
| return r; |
| |
| name = empty_to_null(name); |
| |
| context_read_etc_hostname(c); |
| |
| if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| if (name && !hostname_is_valid(name, 0)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.hostname1.set-static-hostname", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = free_and_strdup_warn(&c->data[PROP_STATIC_HOSTNAME], name); |
| if (r < 0) |
| return r; |
| |
| r = context_write_data_static_hostname(c); |
| if (r < 0) { |
| log_error_errno(r, "Failed to write static hostname: %m"); |
| if (ERRNO_IS_PRIVILEGE(r)) |
| return sd_bus_error_set(error, BUS_ERROR_FILE_IS_PROTECTED, "Not allowed to update /etc/hostname."); |
| if (r == -EROFS) |
| return sd_bus_error_set(error, BUS_ERROR_READ_ONLY_FILESYSTEM, "/etc/hostname is in a read-only filesystem."); |
| return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %m"); |
| } |
| |
| r = context_update_kernel_hostname(c, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to set hostname: %m"); |
| return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
| } |
| |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), |
| "/org/freedesktop/hostname1", "org.freedesktop.hostname1", |
| "StaticHostname", "Hostname", "HostnameSource", NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
| int interactive; |
| const char *name; |
| int r; |
| |
| assert(c); |
| assert(m); |
| |
| r = sd_bus_message_read(m, "sb", &name, &interactive); |
| if (r < 0) |
| return r; |
| |
| name = empty_to_null(name); |
| |
| context_read_machine_info(c); |
| |
| if (streq_ptr(name, c->data[prop])) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| if (!isempty(name)) { |
| /* The icon name might ultimately be used as file |
| * name, so better be safe than sorry */ |
| |
| if (prop == PROP_ICON_NAME && !filename_is_valid(name)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
| if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty hostname '%s'", name); |
| if (prop == PROP_CHASSIS && !valid_chassis(name)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
| if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); |
| if (prop == PROP_LOCATION && string_has_cc(name, NULL)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); |
| } |
| |
| /* Since the pretty hostname should always be changed at the |
| * same time as the static one, use the same policy action for |
| * both... */ |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = free_and_strdup_warn(&c->data[prop], name); |
| if (r < 0) |
| return r; |
| |
| r = context_write_data_machine_info(c); |
| if (r < 0) { |
| log_error_errno(r, "Failed to write machine info: %m"); |
| if (ERRNO_IS_PRIVILEGE(r)) |
| return sd_bus_error_set(error, BUS_ERROR_FILE_IS_PROTECTED, "Not allowed to update /etc/machine-info."); |
| if (r == -EROFS) |
| return sd_bus_error_set(error, BUS_ERROR_READ_ONLY_FILESYSTEM, "/etc/machine-info is in a read-only filesystem."); |
| return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %m"); |
| } |
| |
| log_info("Changed %s to '%s'", |
| prop == PROP_PRETTY_HOSTNAME ? "pretty hostname" : |
| prop == PROP_DEPLOYMENT ? "deployment" : |
| prop == PROP_LOCATION ? "location" : |
| prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
| |
| (void) sd_bus_emit_properties_changed( |
| sd_bus_message_get_bus(m), |
| "/org/freedesktop/hostname1", |
| "org.freedesktop.hostname1", |
| prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : |
| prop == PROP_DEPLOYMENT ? "Deployment" : |
| prop == PROP_LOCATION ? "Location" : |
| prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); |
| } |
| |
| static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); |
| } |
| |
| static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); |
| } |
| |
| static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); |
| } |
| |
| static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); |
| } |
| |
| static int method_get_product_uuid(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| Context *c = ASSERT_PTR(userdata); |
| int interactive, r; |
| sd_id128_t uuid; |
| |
| assert(m); |
| |
| r = sd_bus_message_read(m, "b", &interactive); |
| if (r < 0) |
| return r; |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.hostname1.get-product-uuid", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = id128_get_product(&uuid); |
| if (r < 0) { |
| if (r == -EADDRNOTAVAIL) |
| log_debug_errno(r, "DMI product UUID is all 0x00 or all 0xFF, ignoring."); |
| else |
| log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, |
| "Failed to read product UUID, ignoring: %m"); |
| |
| return sd_bus_error_set(error, BUS_ERROR_NO_PRODUCT_UUID, |
| "Failed to read product UUID from firmware."); |
| } |
| |
| r = sd_bus_message_new_method_return(m, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append_array(reply, 'y', uuid.bytes, sizeof(uuid.bytes)); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_get_hardware_serial(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| _cleanup_free_ char *serial = NULL; |
| Context *c = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(m); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.hostname1.get-hardware-serial", |
| NULL, |
| false, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = get_hardware_serial(&serial); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_new_method_return(m, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(reply, "s", serial); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_describe(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *hn = NULL, *dhn = NULL, *in = NULL, *text = NULL, |
| *chassis = NULL, *vendor = NULL, *model = NULL, *serial = NULL, *firmware_version = NULL, |
| *firmware_vendor = NULL; |
| usec_t firmware_date = USEC_INFINITY, eol = USEC_INFINITY; |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; |
| sd_id128_t product_uuid = SD_ID128_NULL; |
| Context *c = ASSERT_PTR(userdata); |
| bool privileged; |
| struct utsname u; |
| int r; |
| |
| assert(m); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.hostname1.get-description", |
| NULL, |
| false, |
| UID_INVALID, |
| &c->polkit_registry, |
| NULL); |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| /* We ignore all authentication errors here, since most data is unprivileged, the one exception being |
| * the product ID which we'll check explicitly. */ |
| privileged = r > 0; |
| |
| context_read_etc_hostname(c); |
| context_read_machine_info(c); |
| context_read_os_release(c); |
| context_determine_hostname_source(c); |
| |
| r = gethostname_strict(&hn); |
| if (r < 0) { |
| if (r != -ENXIO) |
| return log_error_errno(r, "Failed to read local host name: %m"); |
| |
| hn = get_default_hostname(); |
| if (!hn) |
| return log_oom(); |
| } |
| |
| dhn = get_default_hostname(); |
| if (!dhn) |
| return log_oom(); |
| |
| if (isempty(c->data[PROP_ICON_NAME])) |
| in = context_fallback_icon_name(c); |
| |
| chassis = context_get_chassis(c); |
| |
| assert_se(uname(&u) >= 0); |
| |
| if (isempty(c->data[PROP_HARDWARE_VENDOR])) |
| (void) get_hardware_vendor(&vendor); |
| if (isempty(c->data[PROP_HARDWARE_MODEL])) |
| (void) get_hardware_model(&model); |
| |
| if (privileged) { |
| /* The product UUID and hardware serial is only available to privileged clients */ |
| (void) id128_get_product(&product_uuid); |
| (void) get_hardware_serial(&serial); |
| } |
| (void) get_firmware_version(&firmware_version); |
| (void) get_firmware_vendor(&firmware_vendor); |
| (void) get_firmware_date(&firmware_date); |
| |
| if (c->data[PROP_OS_SUPPORT_END]) |
| (void) os_release_support_ended(c->data[PROP_OS_SUPPORT_END], /* quiet= */ false, &eol); |
| |
| r = json_build(&v, JSON_BUILD_OBJECT( |
| JSON_BUILD_PAIR("Hostname", JSON_BUILD_STRING(hn)), |
| JSON_BUILD_PAIR("StaticHostname", JSON_BUILD_STRING(c->data[PROP_STATIC_HOSTNAME])), |
| JSON_BUILD_PAIR("PrettyHostname", JSON_BUILD_STRING(c->data[PROP_PRETTY_HOSTNAME])), |
| JSON_BUILD_PAIR("DefaultHostname", JSON_BUILD_STRING(dhn)), |
| JSON_BUILD_PAIR("HostnameSource", JSON_BUILD_STRING(hostname_source_to_string(c->hostname_source))), |
| JSON_BUILD_PAIR("IconName", JSON_BUILD_STRING(in ?: c->data[PROP_ICON_NAME])), |
| JSON_BUILD_PAIR("Chassis", JSON_BUILD_STRING(chassis)), |
| JSON_BUILD_PAIR("Deployment", JSON_BUILD_STRING(c->data[PROP_DEPLOYMENT])), |
| JSON_BUILD_PAIR("Location", JSON_BUILD_STRING(c->data[PROP_LOCATION])), |
| JSON_BUILD_PAIR("KernelName", JSON_BUILD_STRING(u.sysname)), |
| JSON_BUILD_PAIR("KernelRelease", JSON_BUILD_STRING(u.release)), |
| JSON_BUILD_PAIR("KernelVersion", JSON_BUILD_STRING(u.version)), |
| JSON_BUILD_PAIR("OperatingSystemPrettyName", JSON_BUILD_STRING(c->data[PROP_OS_PRETTY_NAME])), |
| JSON_BUILD_PAIR("OperatingSystemCPEName", JSON_BUILD_STRING(c->data[PROP_OS_CPE_NAME])), |
| JSON_BUILD_PAIR("OperatingSystemHomeURL", JSON_BUILD_STRING(c->data[PROP_OS_HOME_URL])), |
| JSON_BUILD_PAIR_FINITE_USEC("OperatingSystemSupportEnd", eol), |
| JSON_BUILD_PAIR("HardwareVendor", JSON_BUILD_STRING(vendor ?: c->data[PROP_HARDWARE_VENDOR])), |
| JSON_BUILD_PAIR("HardwareModel", JSON_BUILD_STRING(model ?: c->data[PROP_HARDWARE_MODEL])), |
| JSON_BUILD_PAIR("HardwareSerial", JSON_BUILD_STRING(serial)), |
| JSON_BUILD_PAIR("FirmwareVersion", JSON_BUILD_STRING(firmware_version)), |
| JSON_BUILD_PAIR("FirmwareVendor", JSON_BUILD_STRING(firmware_vendor)), |
| JSON_BUILD_PAIR_FINITE_USEC("FirmwareDate", firmware_date), |
| JSON_BUILD_PAIR_CONDITION(!sd_id128_is_null(product_uuid), "ProductUUID", JSON_BUILD_ID128(product_uuid)), |
| JSON_BUILD_PAIR_CONDITION(sd_id128_is_null(product_uuid), "ProductUUID", JSON_BUILD_NULL))); |
| |
| if (r < 0) |
| return log_error_errno(r, "Failed to build JSON data: %m"); |
| |
| r = json_variant_format(v, 0, &text); |
| if (r < 0) |
| return log_error_errno(r, "Failed to format JSON data: %m"); |
| |
| r = sd_bus_message_new_method_return(m, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(reply, "s", text); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static const sd_bus_vtable hostname_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| SD_BUS_PROPERTY("Hostname", "s", property_get_hostname, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("StaticHostname", "s", property_get_static_hostname, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("PrettyHostname", "s", property_get_machine_info_field, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("DefaultHostname", "s", property_get_default_hostname, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HostnameSource", "s", property_get_hostname_source, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("Deployment", "s", property_get_machine_info_field, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("Location", "s", property_get_machine_info_field, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("KernelName", "s", property_get_uname_field, offsetof(struct utsname, sysname), SD_BUS_VTABLE_ABSOLUTE_OFFSET|SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("KernelRelease", "s", property_get_uname_field, offsetof(struct utsname, release), SD_BUS_VTABLE_ABSOLUTE_OFFSET|SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("KernelVersion", "s", property_get_uname_field, offsetof(struct utsname, version), SD_BUS_VTABLE_ABSOLUTE_OFFSET|SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", property_get_os_release_field, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("OperatingSystemCPEName", "s", property_get_os_release_field, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("OperatingSystemSupportEnd", "t", property_get_os_support_end, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HomeURL", "s", property_get_os_release_field, offsetof(Context, data) + sizeof(char*) * PROP_OS_HOME_URL, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HardwareVendor", "s", property_get_hardware_vendor, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HardwareModel", "s", property_get_hardware_model, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("FirmwareVersion", "s", property_get_firmware_version, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("FirmwareVendor", "s", property_get_firmware_vendor, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("FirmwareDate", "t", property_get_firmware_date, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| |
| SD_BUS_METHOD_WITH_ARGS("SetHostname", |
| SD_BUS_ARGS("s", hostname, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_hostname, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetStaticHostname", |
| SD_BUS_ARGS("s", hostname, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_static_hostname, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetPrettyHostname", |
| SD_BUS_ARGS("s", hostname, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_pretty_hostname, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetIconName", |
| SD_BUS_ARGS("s", icon, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_icon_name, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetChassis", |
| SD_BUS_ARGS("s", chassis, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_chassis, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetDeployment", |
| SD_BUS_ARGS("s", deployment, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_deployment, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLocation", |
| SD_BUS_ARGS("s", location, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_location, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetProductUUID", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_RESULT("ay", uuid), |
| method_get_product_uuid, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetHardwareSerial", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", serial), |
| method_get_hardware_serial, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Describe", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", json), |
| method_describe, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_VTABLE_END, |
| }; |
| |
| static const BusObjectImplementation manager_object = { |
| "/org/freedesktop/hostname1", |
| "org.freedesktop.hostname1", |
| .vtables = BUS_VTABLES(hostname_vtable), |
| }; |
| |
| static int connect_bus(Context *c, sd_event *event, sd_bus **ret) { |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
| int r; |
| |
| assert(c); |
| assert(event); |
| assert(ret); |
| |
| r = sd_bus_default_system(&bus); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get system bus connection: %m"); |
| |
| r = bus_add_implementation(bus, &manager_object, c); |
| if (r < 0) |
| return r; |
| |
| r = bus_log_control_api_register(bus); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.hostname1", 0, NULL, NULL); |
| if (r < 0) |
| return log_error_errno(r, "Failed to request name: %m"); |
| |
| r = sd_bus_attach_event(bus, event, 0); |
| if (r < 0) |
| return log_error_errno(r, "Failed to attach bus to event loop: %m"); |
| |
| *ret = TAKE_PTR(bus); |
| return 0; |
| } |
| |
| static int run(int argc, char *argv[]) { |
| _cleanup_(context_destroy) Context context = { |
| .hostname_source = _HOSTNAME_INVALID, /* appropriate value will be set later */ |
| }; |
| _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
| int r; |
| |
| log_setup(); |
| |
| r = service_parse_argv("systemd-hostnamed.service", |
| "Manage the system hostname and related metadata.", |
| BUS_IMPLEMENTATIONS(&manager_object, |
| &log_control_object), |
| argc, argv); |
| if (r <= 0) |
| return r; |
| |
| umask(0022); |
| |
| r = mac_selinux_init(); |
| if (r < 0) |
| return r; |
| |
| assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); |
| |
| r = sd_event_default(&event); |
| if (r < 0) |
| return log_error_errno(r, "Failed to allocate event loop: %m"); |
| |
| (void) sd_event_set_watchdog(event, true); |
| |
| r = sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); |
| if (r < 0) |
| return log_error_errno(r, "Failed to install SIGINT handler: %m"); |
| |
| r = sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); |
| if (r < 0) |
| return log_error_errno(r, "Failed to install SIGTERM handler: %m"); |
| |
| r = connect_bus(&context, event, &bus); |
| if (r < 0) |
| return r; |
| |
| r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
| if (r < 0) |
| return log_error_errno(r, "Failed to run event loop: %m"); |
| |
| return 0; |
| } |
| |
| DEFINE_MAIN_FUNCTION(run); |
