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-rw-r--r--src/hostname/hostnamed.c682
1 files changed, 308 insertions, 374 deletions
diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c
index 6a43aeb840..a8f0574ec7 100644
--- a/src/hostname/hostnamed.c
+++ b/src/hostname/hostnamed.c
@@ -19,8 +19,6 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <dbus/dbus.h>
-
#include <errno.h>
#include <string.h>
#include <unistd.h>
@@ -28,57 +26,13 @@
#include "util.h"
#include "strv.h"
-#include "dbus-common.h"
-#include "polkit.h"
#include "def.h"
#include "virt.h"
#include "env-util.h"
#include "fileio-label.h"
#include "label.h"
-
-#define INTERFACE \
- " <interface name=\"org.freedesktop.hostname1\">\n" \
- " <property name=\"Hostname\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"StaticHostname\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"PrettyHostname\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"IconName\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Chassis\" type=\"s\" access=\"read\"/>\n" \
- " <method name=\"SetHostname\">\n" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetStaticHostname\">\n" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetPrettyHostname\">\n" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetIconName\">\n" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " <method name=\"SetChassis\">\n" \
- " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
- " <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
- " </method>\n" \
- " </interface>\n"
-
-#define INTROSPECTION \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>\n" \
- INTERFACE \
- BUS_PROPERTIES_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE \
- BUS_PEER_INTERFACE \
- "</node>\n"
-
-#define INTERFACES_LIST \
- BUS_GENERIC_INTERFACES_LIST \
- "org.freedesktop.hostname1\0"
-
-const char hostname_interface[] _introspect_("hostname1") = INTERFACE;
+#include "bus-util.h"
+#include "event-util.h"
enum {
PROP_HOSTNAME,
@@ -89,42 +43,48 @@ enum {
_PROP_MAX
};
-static char *data[_PROP_MAX] = {
- NULL,
- NULL,
- NULL,
- NULL,
- NULL
-};
-
-static usec_t remain_until = 0;
+typedef struct Context {
+ char *data[_PROP_MAX];
+ Hashmap *polkit_registry;
+} Context;
-static void free_data(void) {
+static void context_reset(Context *c) {
int p;
+ assert(c);
+
for (p = 0; p < _PROP_MAX; p++) {
- free(data[p]);
- data[p] = NULL;
+ free(c->data[p]);
+ c->data[p] = NULL;
}
}
-static int read_data(void) {
+static void context_free(Context *c, sd_bus *bus) {
+ assert(c);
+
+ context_reset(c);
+ bus_verify_polkit_async_registry_free(bus, c->polkit_registry);
+}
+
+static int context_read_data(Context *c) {
int r;
- free_data();
+ assert(c);
+
+ context_reset(c);
- data[PROP_HOSTNAME] = gethostname_malloc();
- if (!data[PROP_HOSTNAME])
+ c->data[PROP_HOSTNAME] = gethostname_malloc();
+ if (!c->data[PROP_HOSTNAME])
return -ENOMEM;
- r = read_one_line_file("/etc/hostname", &data[PROP_STATIC_HOSTNAME]);
+ r = read_one_line_file("/etc/hostname", &c->data[PROP_STATIC_HOSTNAME]);
if (r < 0 && r != -ENOENT)
return r;
r = parse_env_file("/etc/machine-info", NEWLINE,
- "PRETTY_HOSTNAME", &data[PROP_PRETTY_HOSTNAME],
- "ICON_NAME", &data[PROP_ICON_NAME],
- "CHASSIS", &data[PROP_CHASSIS],
+ "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME],
+ "ICON_NAME", &c->data[PROP_ICON_NAME],
+ "CHASSIS", &c->data[PROP_CHASSIS],
NULL);
if (r < 0 && r != -ENOENT)
return r;
@@ -253,11 +213,13 @@ try_dmi:
return NULL;
}
-static char* fallback_icon_name(void) {
+static char* context_fallback_icon_name(Context *c) {
const char *chassis;
- if (!isempty(data[PROP_CHASSIS]))
- return strappend("computer-", data[PROP_CHASSIS]);
+ assert(c);
+
+ if (!isempty(c->data[PROP_CHASSIS]))
+ return strappend("computer-", c->data[PROP_CHASSIS]);
chassis = fallback_chassis();
if (chassis)
@@ -266,13 +228,15 @@ static char* fallback_icon_name(void) {
return strdup("computer");
}
-static int write_data_hostname(void) {
+static int context_write_data_hostname(Context *c) {
const char *hn;
- if (isempty(data[PROP_HOSTNAME]))
+ assert(c);
+
+ if (isempty(c->data[PROP_HOSTNAME]))
hn = "localhost";
else
- hn = data[PROP_HOSTNAME];
+ hn = c->data[PROP_HOSTNAME];
if (sethostname(hn, strlen(hn)) < 0)
return -errno;
@@ -280,19 +244,21 @@ static int write_data_hostname(void) {
return 0;
}
-static int write_data_static_hostname(void) {
+static int context_write_data_static_hostname(Context *c) {
- if (isempty(data[PROP_STATIC_HOSTNAME])) {
+ 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", data[PROP_STATIC_HOSTNAME]);
+ return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]);
}
-static int write_data_other(void) {
+static int context_write_data_other(Context *c) {
static const char * const name[_PROP_MAX] = {
[PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME",
@@ -303,6 +269,8 @@ static int write_data_other(void) {
char **l = NULL;
int r, p;
+ assert(c);
+
r = load_env_file("/etc/machine-info", NULL, &l);
if (r < 0 && r != -ENOENT)
return r;
@@ -312,12 +280,12 @@ static int write_data_other(void) {
assert(name[p]);
- if (isempty(data[p])) {
+ if (isempty(c->data[p])) {
strv_env_unset(l, name[p]);
continue;
}
- if (asprintf(&t, "%s=%s", name[p], strempty(data[p])) < 0) {
+ if (asprintf(&t, "%s=%s", name[p], strempty(c->data[p])) < 0) {
strv_free(l);
return -ENOMEM;
}
@@ -345,340 +313,313 @@ static int write_data_other(void) {
return r;
}
-static int bus_hostname_append_icon_name(DBusMessageIter *i, const char *property, void *userdata) {
- const char *name;
- _cleanup_free_ char *n = NULL;
+static int property_get_icon_name(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ sd_bus_error *error,
+ void *userdata) {
- assert(i);
- assert(property);
+ _cleanup_free_ char *n = NULL;
+ Context *c = userdata;
+ const char *name;
+ int r;
- if (isempty(data[PROP_ICON_NAME]))
- name = n = fallback_icon_name();
+ if (isempty(c->data[PROP_ICON_NAME]))
+ name = n = context_fallback_icon_name(c);
else
- name = data[PROP_ICON_NAME];
+ name = c->data[PROP_ICON_NAME];
+
+ if (!name)
+ return -ENOMEM;
- return bus_property_append_string(i, property, (void*) name);
+ r = sd_bus_message_append(reply, "s", name);
+ if (r < 0)
+ return r;
+
+ return 1;
}
-static int bus_hostname_append_chassis(DBusMessageIter *i, const char *property, void *userdata) {
- const char *name;
+static int property_get_chassis(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ sd_bus_error *error,
+ void *userdata) {
- assert(i);
- assert(property);
+ Context *c = userdata;
+ const char *name;
+ int r;
- if (isempty(data[PROP_CHASSIS]))
+ if (isempty(c->data[PROP_CHASSIS]))
name = fallback_chassis();
else
- name = data[PROP_CHASSIS];
+ name = c->data[PROP_CHASSIS];
- return bus_property_append_string(i, property, (void*) name);
+ r = sd_bus_message_append(reply, "s", name);
+ if (r < 0)
+ return r;
+
+ return 1;
}
-static const BusProperty bus_hostname_properties[] = {
- { "Hostname", bus_property_append_string, "s", sizeof(data[0])*PROP_HOSTNAME, true },
- { "StaticHostname", bus_property_append_string, "s", sizeof(data[0])*PROP_STATIC_HOSTNAME, true },
- { "PrettyHostname", bus_property_append_string, "s", sizeof(data[0])*PROP_PRETTY_HOSTNAME, true },
- { "IconName", bus_hostname_append_icon_name, "s", sizeof(data[0])*PROP_ICON_NAME, true },
- { "Chassis", bus_hostname_append_chassis, "s", sizeof(data[0])*PROP_CHASSIS, true },
- { NULL, }
-};
+static int method_set_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ Context *c = userdata;
+ const char *name;
+ bool interactive;
+ char *h;
+ int r;
-static const BusBoundProperties bps[] = {
- { "org.freedesktop.hostname1", bus_hostname_properties, data },
- { NULL, }
-};
+ r = sd_bus_message_read(m, "sb", &name, &interactive);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, NULL);
-static DBusHandlerResult hostname_message_handler(
- DBusConnection *connection,
- DBusMessage *message,
- void *userdata) {
+ if (isempty(name))
+ name = c->data[PROP_STATIC_HOSTNAME];
+ if (isempty(name))
+ name = "localhost";
- DBusMessage *reply = NULL, *changed = NULL;
- DBusError error;
- int r;
+ if (!hostname_is_valid(name))
+ return sd_bus_reply_method_errorf(bus, m, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name);
- assert(connection);
- assert(message);
+ if (streq_ptr(name, c->data[PROP_HOSTNAME]))
+ return sd_bus_reply_method_return(bus, m, NULL);
- dbus_error_init(&error);
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-hostname", interactive, &error, method_set_hostname, c);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, &error);
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
- if (dbus_message_is_method_call(message, "org.freedesktop.hostname1", "SetHostname")) {
- const char *name;
- dbus_bool_t interactive;
+ h = strdup(name);
+ if (!h)
+ return log_oom();
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
+ free(c->data[PROP_HOSTNAME]);
+ c->data[PROP_HOSTNAME] = h;
- if (isempty(name))
- name = data[PROP_STATIC_HOSTNAME];
+ r = context_write_data_hostname(c);
+ if (r < 0) {
+ log_error("Failed to set host name: %s", strerror(-r));
+ return sd_bus_reply_method_errnof(bus, m, r, "Failed to set hostname: %s", strerror(-r));
+ }
- if (isempty(name))
- name = "localhost";
+ log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME]));
- if (!hostname_is_valid(name))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL);
- if (!streq_ptr(name, data[PROP_HOSTNAME])) {
- char *h;
+ return sd_bus_reply_method_return(bus, m, NULL);
+}
- r = verify_polkit(connection, message, "org.freedesktop.hostname1.set-hostname", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
+static int method_set_static_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ Context *c = userdata;
+ const char *name;
+ bool interactive;
+ int r;
- h = strdup(name);
- if (!h)
- goto oom;
+ r = sd_bus_message_read(m, "sb", &name, &interactive);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, NULL);
- free(data[PROP_HOSTNAME]);
- data[PROP_HOSTNAME] = h;
+ if (isempty(name))
+ name = NULL;
- r = write_data_hostname();
- if (r < 0) {
- log_error("Failed to set host name: %s", strerror(-r));
- return bus_send_error_reply(connection, message, NULL, r);
- }
+ if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME]))
+ return sd_bus_reply_method_return(bus, m, NULL);
- log_info("Changed host name to '%s'", strna(data[PROP_HOSTNAME]));
+ r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-static-hostname", interactive, &error, method_set_static_hostname, c);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, &error);
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
- changed = bus_properties_changed_new(
- "/org/freedesktop/hostname1",
- "org.freedesktop.hostname1",
- "Hostname\0");
- if (!changed)
- goto oom;
- }
+ if (isempty(name)) {
+ free(c->data[PROP_STATIC_HOSTNAME]);
+ c->data[PROP_STATIC_HOSTNAME] = NULL;
+ } else {
+ char *h;
- } else if (dbus_message_is_method_call(message, "org.freedesktop.hostname1", "SetStaticHostname")) {
- const char *name;
- dbus_bool_t interactive;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (isempty(name))
- name = NULL;
-
- if (!streq_ptr(name, data[PROP_STATIC_HOSTNAME])) {
-
- r = verify_polkit(connection, message, "org.freedesktop.hostname1.set-static-hostname", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- if (isempty(name)) {
- free(data[PROP_STATIC_HOSTNAME]);
- data[PROP_STATIC_HOSTNAME] = NULL;
- } else {
- char *h;
-
- if (!hostname_is_valid(name))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
-
- h = strdup(name);
- if (!h)
- goto oom;
-
- free(data[PROP_STATIC_HOSTNAME]);
- data[PROP_STATIC_HOSTNAME] = h;
- }
-
- r = write_data_static_hostname();
- if (r < 0) {
- log_error("Failed to write static host name: %s", strerror(-r));
- return bus_send_error_reply(connection, message, NULL, r);
- }
-
- log_info("Changed static host name to '%s'", strna(data[PROP_STATIC_HOSTNAME]));
-
- changed = bus_properties_changed_new(
- "/org/freedesktop/hostname1",
- "org.freedesktop.hostname1",
- "StaticHostname\0");
- if (!changed)
- goto oom;
- }
+ if (!hostname_is_valid(name))
+ return sd_bus_reply_method_errorf(bus, m, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name);
- } else if (dbus_message_is_method_call(message, "org.freedesktop.hostname1", "SetPrettyHostname") ||
- dbus_message_is_method_call(message, "org.freedesktop.hostname1", "SetIconName") ||
- dbus_message_is_method_call(message, "org.freedesktop.hostname1", "SetChassis")) {
-
- const char *name;
- dbus_bool_t interactive;
- int k;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (isempty(name))
- name = NULL;
-
- k = streq(dbus_message_get_member(message), "SetPrettyHostname") ? PROP_PRETTY_HOSTNAME :
- streq(dbus_message_get_member(message), "SetChassis") ? PROP_CHASSIS : PROP_ICON_NAME;
-
- if (!streq_ptr(name, data[k])) {
-
- /* Since the pretty hostname should always be
- * changed at the same time as the static one,
- * use the same policy action for both... */
-
- r = verify_polkit(connection, message, k == PROP_PRETTY_HOSTNAME ?
- "org.freedesktop.hostname1.set-static-hostname" :
- "org.freedesktop.hostname1.set-machine-info", interactive, NULL, &error);
- if (r < 0)
- return bus_send_error_reply(connection, message, &error, r);
-
- if (isempty(name)) {
- free(data[k]);
- data[k] = NULL;
- } else {
- char *h;
-
- /* The icon name might ultimately be
- * used as file name, so better be
- * safe than sorry */
- if (k == PROP_ICON_NAME && !filename_is_safe(name))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
- if (k == PROP_PRETTY_HOSTNAME &&
- (string_has_cc(name) || chars_intersect(name, "\t")))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
- if (k == PROP_CHASSIS && !valid_chassis(name))
- return bus_send_error_reply(connection, message, NULL, -EINVAL);
-
- h = strdup(name);
- if (!h)
- goto oom;
-
- free(data[k]);
- data[k] = h;
- }
-
- r = write_data_other();
- if (r < 0) {
- log_error("Failed to write machine info: %s", strerror(-r));
- return bus_send_error_reply(connection, message, NULL, r);
- }
-
- log_info("Changed %s to '%s'",
- k == PROP_PRETTY_HOSTNAME ? "pretty host name" :
- k == PROP_CHASSIS ? "chassis" : "icon name", strna(data[k]));
-
- changed = bus_properties_changed_new(
- "/org/freedesktop/hostname1",
- "org.freedesktop.hostname1",
- k == PROP_PRETTY_HOSTNAME ? "PrettyHostname\0" :
- k == PROP_CHASSIS ? "Chassis\0" : "IconName\0");
- if (!changed)
- goto oom;
- }
+ h = strdup(name);
+ if (!h)
+ return log_oom();
- } else
- return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
+ free(c->data[PROP_STATIC_HOSTNAME]);
+ c->data[PROP_STATIC_HOSTNAME] = h;
+ }
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
+ r = context_write_data_static_hostname(c);
+ if (r < 0) {
+ log_error("Failed to write static host name: %s", strerror(-r));
+ return sd_bus_reply_method_errnof(bus, m, r, "Failed to set static hostname: %s", strerror(-r));
+ }
- if (!bus_maybe_send_reply(connection, message, reply))
- goto oom;
+ log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME]));
- dbus_message_unref(reply);
- reply = NULL;
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL);
- if (changed) {
+ return sd_bus_reply_method_return(bus, m, NULL);
+}
- if (!dbus_connection_send(connection, changed, NULL))
- goto oom;
+static int set_machine_info(Context *c, sd_bus *bus, sd_bus_message *m, int prop, sd_bus_message_handler_t cb) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ bool interactive;
+ const char *name;
+ int r;
+
+ assert(c);
+ assert(bus);
+ assert(m);
+
+ r = sd_bus_message_read(m, "sb", &name, &interactive);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, NULL);
+
+ if (isempty(name))
+ name = NULL;
+
+ if (streq_ptr(name, c->data[prop]))
+ return sd_bus_reply_method_return(bus, m, NULL);
- dbus_message_unref(changed);
+ /* 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(bus, &c->polkit_registry, m, prop == PROP_PRETTY_HOSTNAME ?
+ "org.freedesktop.hostname1.set-static-hostname" :
+ "org.freedesktop.hostname1.set-machine-info", interactive, &error, cb, c);
+ if (r < 0)
+ return sd_bus_reply_method_errno(bus, m, r, &error);
+ 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)) {
+ free(c->data[prop]);
+ c->data[prop] = NULL;
+ } 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_safe(name))
+ return sd_bus_reply_method_errorf(bus, m, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name);
+ if (prop == PROP_PRETTY_HOSTNAME &&
+ (string_has_cc(name) || chars_intersect(name, "\t")))
+ return sd_bus_reply_method_errorf(bus, m, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name);
+ if (prop == PROP_CHASSIS && !valid_chassis(name))
+ return sd_bus_reply_method_errorf(bus, m, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name);
+
+ h = strdup(name);
+ if (!h)
+ return log_oom();
+
+ free(c->data[prop]);
+ c->data[prop] = h;
}
- return DBUS_HANDLER_RESULT_HANDLED;
+ r = context_write_data_other(c);
+ if (r < 0) {
+ log_error("Failed to write machine info: %s", strerror(-r));
+ return sd_bus_reply_method_errnof(bus, m, r, "Failed to write machine info: %s", strerror(-r));
+ }
-oom:
- if (reply)
- dbus_message_unref(reply);
+ log_info("Changed %s to '%s'",
+ prop == PROP_PRETTY_HOSTNAME ? "pretty host name" :
+ prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop]));
- if (changed)
- dbus_message_unref(changed);
+ sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1",
+ prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" :
+ prop == PROP_CHASSIS ? "Chassis" : "IconName", NULL);
- dbus_error_free(&error);
+ return sd_bus_reply_method_return(bus, m, NULL);
+}
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+static int method_set_pretty_hostname(sd_bus *bus, sd_bus_message *m, void *userdata) {
+ return set_machine_info(userdata, bus, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname);
}
-static int connect_bus(DBusConnection **_bus) {
- static const DBusObjectPathVTable hostname_vtable = {
- .message_function = hostname_message_handler
- };
- DBusError error;
- DBusConnection *bus = NULL;
+static int method_set_icon_name(sd_bus *bus, sd_bus_message *m, void *userdata) {
+ return set_machine_info(userdata, bus, m, PROP_ICON_NAME, method_set_icon_name);
+}
+
+static int method_set_chassis(sd_bus *bus, sd_bus_message *m, void *userdata) {
+ return set_machine_info(userdata, bus, m, PROP_CHASSIS, method_set_chassis);
+}
+
+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, 0),
+ 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_METHOD("SetHostname", "sb", NULL, method_set_hostname, 0),
+ SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, 0),
+ SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, 0),
+ SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, 0),
+ SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, 0),
+ SD_BUS_VTABLE_END,
+};
+
+static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
int r;
+ assert(c);
+ assert(event);
assert(_bus);
- dbus_error_init(&error);
-
- bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
- if (!bus) {
- log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
- r = -ECONNREFUSED;
- goto fail;
+ r = sd_bus_open_system(&bus);
+ if (r < 0) {
+ log_error("Failed to get system bus connection: %s", strerror(-r));
+ return r;
}
- dbus_connection_set_exit_on_disconnect(bus, FALSE);
-
- if (!dbus_connection_register_object_path(bus, "/org/freedesktop/hostname1", &hostname_vtable, NULL) ||
- !dbus_connection_add_filter(bus, bus_exit_idle_filter, &remain_until, NULL)) {
- r = log_oom();
- goto fail;
+ r = sd_bus_add_object_vtable(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c);
+ if (r < 0) {
+ log_error("Failed to register object: %s", strerror(-r));
+ return r;
}
- r = dbus_bus_request_name(bus, "org.freedesktop.hostname1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
- if (dbus_error_is_set(&error)) {
- log_error("Failed to register name on bus: %s", bus_error_message(&error));
- r = -EEXIST;
- goto fail;
+ r = sd_bus_request_name(bus, "org.freedesktop.hostname1", SD_BUS_NAME_DO_NOT_QUEUE);
+ if (r < 0) {
+ log_error("Failed to register name: %s", strerror(-r));
+ return r;
}
- if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+ if (r != SD_BUS_NAME_PRIMARY_OWNER) {
log_error("Failed to acquire name.");
- r = -EEXIST;
- goto fail;
+ return -EEXIST;
}
- if (_bus)
- *_bus = bus;
-
- return 0;
-
-fail:
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
+ r = sd_bus_attach_event(bus, event, 0);
+ if (r < 0) {
+ log_error("Failed to attach bus to event loop: %s", strerror(-r));
+ return r;
+ }
- dbus_error_free(&error);
+ *_bus = bus;
+ bus = NULL;
- return r;
+ return 0;
}
int main(int argc, char *argv[]) {
+ Context context = {};
+
+ _cleanup_event_unref_ sd_event *event = NULL;
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
int r;
- DBusConnection *bus = NULL;
- bool exiting = false;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
@@ -687,14 +628,6 @@ int main(int argc, char *argv[]) {
umask(0022);
label_init("/etc");
- if (argc == 2 && streq(argv[1], "--introspect")) {
- fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
- "<node>\n", stdout);
- fputs(hostname_interface, stdout);
- fputs("</node>\n", stdout);
- return 0;
- }
-
if (argc != 1) {
log_error("This program takes no arguments.");
r = -EINVAL;
@@ -704,38 +637,39 @@ int main(int argc, char *argv[]) {
if (!check_nss())
log_warning("Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!");
- r = read_data();
+ if (argc != 1) {
+ log_error("This program takes no arguments.");
+ r = -EINVAL;
+ goto finish;
+ }
+
+ r = sd_event_new(&event);
if (r < 0) {
- log_error("Failed to read hostname data: %s", strerror(-r));
+ log_error("Failed to allocate event loop: %s", strerror(-r));
goto finish;
}
- r = connect_bus(&bus);
+ r = connect_bus(&context, event, &bus);
if (r < 0)
goto finish;
- remain_until = now(CLOCK_MONOTONIC) + DEFAULT_EXIT_USEC;
- for (;;) {
-
- if (!dbus_connection_read_write_dispatch(bus, exiting ? -1 : (int) (DEFAULT_EXIT_USEC/USEC_PER_MSEC)))
- break;
+ r = context_read_data(&context);
+ if (r < 0) {
+ log_error("Failed to read timezone data: %s", strerror(-r));
+ goto finish;
+ }
- if (!exiting && remain_until < now(CLOCK_MONOTONIC)) {
- exiting = true;
- bus_async_unregister_and_exit(bus, "org.freedesktop.hostname1");
- }
+ r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC);
+ if (r < 0) {
+ log_error("Failed to run event loop: %s", strerror(-r));
+ goto finish;
}
+ sd_bus_flush(bus);
r = 0;
finish:
- free_data();
-
- if (bus) {
- dbus_connection_flush(bus);
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
+ context_free(&context, bus);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-24 05:09:23 +0000