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| /* SPDX-License-Identifier: LGPL-2.1+ */ | |
| /*** | |
| This file is part of systemd. | |
| Copyright 2011 Lennart Poettering | |
| systemd is free software; you can redistribute it and/or modify it | |
| under the terms of the GNU Lesser General Public License as published by | |
| the Free Software Foundation; either version 2.1 of the License, or | |
| (at your option) any later version. | |
| systemd is distributed in the hope that it will be useful, but | |
| WITHOUT ANY WARRANTY; without even the implied warranty of | |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| Lesser General Public License for more details. | |
| You should have received a copy of the GNU Lesser General Public License | |
| along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| ***/ | |
| #include <errno.h> | |
| #include <string.h> | |
| #include <sys/utsname.h> | |
| #include <unistd.h> | |
| #include "alloc-util.h" | |
| #include "bus-util.h" | |
| #include "def.h" | |
| #include "env-util.h" | |
| #include "fileio-label.h" | |
| #include "hostname-util.h" | |
| #include "parse-util.h" | |
| #include "path-util.h" | |
| #include "selinux-util.h" | |
| #include "strv.h" | |
| #include "user-util.h" | |
| #include "util.h" | |
| #include "virt.h" | |
| #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") | |
| enum { | |
| PROP_HOSTNAME, | |
| PROP_STATIC_HOSTNAME, | |
| PROP_PRETTY_HOSTNAME, | |
| PROP_ICON_NAME, | |
| PROP_CHASSIS, | |
| PROP_DEPLOYMENT, | |
| PROP_LOCATION, | |
| PROP_KERNEL_NAME, | |
| PROP_KERNEL_RELEASE, | |
| PROP_KERNEL_VERSION, | |
| PROP_OS_PRETTY_NAME, | |
| PROP_OS_CPE_NAME, | |
| _PROP_MAX | |
| }; | |
| typedef struct Context { | |
| char *data[_PROP_MAX]; | |
| Hashmap *polkit_registry; | |
| } Context; | |
| static void context_reset(Context *c) { | |
| int p; | |
| assert(c); | |
| for (p = 0; p < _PROP_MAX; p++) | |
| c->data[p] = mfree(c->data[p]); | |
| } | |
| static void context_free(Context *c) { | |
| assert(c); | |
| context_reset(c); | |
| bus_verify_polkit_async_registry_free(c->polkit_registry); | |
| } | |
| static int context_read_data(Context *c) { | |
| int r; | |
| struct utsname u; | |
| assert(c); | |
| context_reset(c); | |
| assert_se(uname(&u) >= 0); | |
| c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
| c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
| c->data[PROP_KERNEL_VERSION] = strdup(u.version); | |
| if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
| !c->data[PROP_KERNEL_VERSION]) | |
| return -ENOMEM; | |
| c->data[PROP_HOSTNAME] = gethostname_malloc(); | |
| if (!c->data[PROP_HOSTNAME]) | |
| return -ENOMEM; | |
| r = read_etc_hostname(NULL, &c->data[PROP_STATIC_HOSTNAME]); | |
| if (r < 0 && r != -ENOENT) | |
| return r; | |
| r = parse_env_file("/etc/machine-info", NEWLINE, | |
| "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], | |
| NULL); | |
| if (r < 0 && r != -ENOENT) | |
| return r; | |
| r = parse_env_file("/etc/os-release", NEWLINE, | |
| "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
| "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
| NULL); | |
| if (r == -ENOENT) | |
| r = parse_env_file("/usr/lib/os-release", NEWLINE, | |
| "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
| "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
| NULL); | |
| if (r < 0 && r != -ENOENT) | |
| return r; | |
| return 0; | |
| } | |
| static bool valid_chassis(const char *chassis) { | |
| assert(chassis); | |
| return nulstr_contains( | |
| "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) { | |
| char *type; | |
| unsigned t; | |
| int v, r; | |
| v = detect_virtualization(); | |
| if (VIRTUALIZATION_IS_VM(v)) | |
| return "vm"; | |
| if (VIRTUALIZATION_IS_CONTAINER(v)) | |
| return "container"; | |
| r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); | |
| if (r < 0) | |
| goto try_acpi; | |
| r = safe_atou(type, &t); | |
| free(type); | |
| if (r < 0) | |
| 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 3.0 section 7.4.1 for details about the values listed here: | |
| https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf | |
| */ | |
| switch (t) { | |
| case 0x3: /* Desktop */ | |
| case 0x4: /* Low Profile Desktop */ | |
| case 0x6: /* Mini Tower */ | |
| case 0x7: /* Tower */ | |
| 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"; | |
| } | |
| try_acpi: | |
| r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
| if (r < 0) | |
| return NULL; | |
| r = safe_atou(type, &t); | |
| free(type); | |
| if (r < 0) | |
| return NULL; | |
| /* 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"; | |
| } | |
| return NULL; | |
| } | |
| static char* context_fallback_icon_name(Context *c) { | |
| const char *chassis; | |
| assert(c); | |
| if (!isempty(c->data[PROP_CHASSIS])) | |
| return strappend("computer-", c->data[PROP_CHASSIS]); | |
| chassis = fallback_chassis(); | |
| if (chassis) | |
| return strappend("computer-", chassis); | |
| return strdup("computer"); | |
| } | |
| static bool hostname_is_useful(const char *hn) { | |
| return !isempty(hn) && !is_localhost(hn); | |
| } | |
| static int context_update_kernel_hostname(Context *c) { | |
| const char *static_hn; | |
| const char *hn; | |
| assert(c); | |
| static_hn = c->data[PROP_STATIC_HOSTNAME]; | |
| /* /etc/hostname with something other than "localhost" | |
| * has the highest preference ... */ | |
| if (hostname_is_useful(static_hn)) | |
| hn = static_hn; | |
| /* ... the transient host name, (ie: DHCP) comes next ... */ | |
| else if (!isempty(c->data[PROP_HOSTNAME])) | |
| hn = c->data[PROP_HOSTNAME]; | |
| /* ... fallback to static "localhost.*" ignored above ... */ | |
| else if (!isempty(static_hn)) | |
| hn = static_hn; | |
| /* ... and the ultimate fallback */ | |
| else | |
| hn = FALLBACK_HOSTNAME; | |
| if (sethostname_idempotent(hn) < 0) | |
| return -errno; | |
| return 0; | |
| } | |
| static int context_write_data_static_hostname(Context *c) { | |
| assert(c); | |
| if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
| if (unlink("/etc/hostname") < 0) | |
| return errno == ENOENT ? 0 : -errno; | |
| return 0; | |
| } | |
| return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); | |
| } | |
| static int context_write_data_machine_info(Context *c) { | |
| 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, p; | |
| assert(c); | |
| r = load_env_file(NULL, "/etc/machine-info", NULL, &l); | |
| if (r < 0 && r != -ENOENT) | |
| return r; | |
| for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { | |
| _cleanup_free_ char *t = NULL; | |
| char **u; | |
| assert(name[p]); | |
| if (isempty(c->data[p])) { | |
| strv_env_unset(l, name[p]); | |
| continue; | |
| } | |
| t = strjoin(name[p], "=", c->data[p]); | |
| if (!t) | |
| return -ENOMEM; | |
| u = strv_env_set(l, t); | |
| if (!u) | |
| return -ENOMEM; | |
| strv_free(l); | |
| l = u; | |
| } | |
| if (strv_isempty(l)) { | |
| if (unlink("/etc/machine-info") < 0) | |
| return errno == ENOENT ? 0 : -errno; | |
| return 0; | |
| } | |
| return write_env_file_label("/etc/machine-info", l); | |
| } | |
| 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; | |
| 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) { | |
| Context *c = userdata; | |
| const char *name; | |
| if (isempty(c->data[PROP_CHASSIS])) | |
| name = fallback_chassis(); | |
| else | |
| name = c->data[PROP_CHASSIS]; | |
| return sd_bus_message_append(reply, "s", name); | |
| } | |
| static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
| Context *c = userdata; | |
| const char *name; | |
| int interactive; | |
| char *h; | |
| int r; | |
| assert(m); | |
| assert(c); | |
| r = sd_bus_message_read(m, "sb", &name, &interactive); | |
| if (r < 0) | |
| return r; | |
| if (isempty(name)) | |
| name = c->data[PROP_STATIC_HOSTNAME]; | |
| if (isempty(name)) | |
| name = FALLBACK_HOSTNAME; | |
| if (!hostname_is_valid(name, false)) | |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); | |
| if (streq_ptr(name, c->data[PROP_HOSTNAME])) | |
| return sd_bus_reply_method_return(m, NULL); | |
| 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 */ | |
| h = strdup(name); | |
| if (!h) | |
| return -ENOMEM; | |
| free(c->data[PROP_HOSTNAME]); | |
| c->data[PROP_HOSTNAME] = h; | |
| r = context_update_kernel_hostname(c); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to set host name: %m"); | |
| return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); | |
| } | |
| log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); | |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", 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 = userdata; | |
| const char *name; | |
| int interactive; | |
| int r; | |
| assert(m); | |
| assert(c); | |
| r = sd_bus_message_read(m, "sb", &name, &interactive); | |
| if (r < 0) | |
| return r; | |
| name = empty_to_null(name); | |
| if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) | |
| return sd_bus_reply_method_return(m, NULL); | |
| 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 */ | |
| if (isempty(name)) | |
| c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]); | |
| else { | |
| char *h; | |
| if (!hostname_is_valid(name, false)) | |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); | |
| h = strdup(name); | |
| if (!h) | |
| return -ENOMEM; | |
| free(c->data[PROP_STATIC_HOSTNAME]); | |
| c->data[PROP_STATIC_HOSTNAME] = h; | |
| } | |
| r = context_update_kernel_hostname(c); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to set host name: %m"); | |
| return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); | |
| } | |
| r = context_write_data_static_hostname(c); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to write static host name: %m"); | |
| return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %m"); | |
| } | |
| log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); | |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", 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); | |
| if (streq_ptr(name, c->data[prop])) | |
| return sd_bus_reply_method_return(m, NULL); | |
| /* 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 */ | |
| if (isempty(name)) | |
| c->data[prop] = mfree(c->data[prop]); | |
| else { | |
| char *h; | |
| /* 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 host name '%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); | |
| h = strdup(name); | |
| if (!h) | |
| return -ENOMEM; | |
| free(c->data[prop]); | |
| c->data[prop] = h; | |
| } | |
| r = context_write_data_machine_info(c); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to write machine info: %m"); | |
| 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 host name" : | |
| 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 const sd_bus_vtable hostname_vtable[] = { | |
| SD_BUS_VTABLE_START(0), | |
| SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
| SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
| SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, 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", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
| SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
| SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
| SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
| SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), | |
| SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
| SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
| SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), | |
| SD_BUS_VTABLE_END, | |
| }; | |
| static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
| int r; | |
| assert(c); | |
| assert(event); | |
| assert(_bus); | |
| r = sd_bus_default_system(&bus); | |
| if (r < 0) | |
| return log_error_errno(r, "Failed to get system bus connection: %m"); | |
| r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); | |
| if (r < 0) | |
| return log_error_errno(r, "Failed to register object: %m"); | |
| r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); | |
| if (r < 0) | |
| return log_error_errno(r, "Failed to register 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"); | |
| *_bus = bus; | |
| bus = NULL; | |
| return 0; | |
| } | |
| int main(int argc, char *argv[]) { | |
| Context context = {}; | |
| _cleanup_(sd_event_unrefp) sd_event *event = NULL; | |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
| int r; | |
| log_set_target(LOG_TARGET_AUTO); | |
| log_parse_environment(); | |
| log_open(); | |
| umask(0022); | |
| mac_selinux_init(); | |
| if (argc != 1) { | |
| log_error("This program takes no arguments."); | |
| r = -EINVAL; | |
| goto finish; | |
| } | |
| r = sd_event_default(&event); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to allocate event loop: %m"); | |
| goto finish; | |
| } | |
| sd_event_set_watchdog(event, true); | |
| r = connect_bus(&context, event, &bus); | |
| if (r < 0) | |
| goto finish; | |
| r = context_read_data(&context); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to read hostname and machine information: %m"); | |
| goto finish; | |
| } | |
| r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); | |
| if (r < 0) { | |
| log_error_errno(r, "Failed to run event loop: %m"); | |
| goto finish; | |
| } | |
| finish: | |
| context_free(&context); | |
| return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
| } |