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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "alloc-util.h"
#include "bus-get-properties.h"
#include "bus-log-control-api.h"
#include "bus-util.h"
#include "log.h"
#include "sd-bus.h"
#include "syslog-util.h"
int bus_property_get_log_level(
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 *t = NULL;
int r;
assert(bus);
assert(reply);
r = log_level_to_string_alloc(log_get_max_level(), &t);
if (r < 0)
return r;
return sd_bus_message_append(reply, "s", t);
}
int bus_property_set_log_level(
sd_bus *bus,
const char *path,
const char *interface,
const char *property,
sd_bus_message *value,
void *userdata,
sd_bus_error *error) {
const char *t;
int r;
assert(bus);
assert(value);
r = sd_bus_message_read(value, "s", &t);
if (r < 0)
return r;
r = log_level_from_string(t);
if (r < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid log level '%s'", t);
log_info("Setting log level to %s.", t);
log_set_max_level(r);
return 0;
}
BUS_DEFINE_PROPERTY_GET_GLOBAL(bus_property_get_log_target, "s", log_target_to_string(log_get_target()));
int bus_property_set_log_target(
sd_bus *bus,
const char *path,
const char *interface,
const char *property,
sd_bus_message *value,
void *userdata,
sd_bus_error *error) {
LogTarget target;
const char *t;
int r;
assert(bus);
assert(value);
r = sd_bus_message_read(value, "s", &t);
if (r < 0)
return r;
target = log_target_from_string(t);
if (target < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid log target '%s'", t);
log_info("Setting log target to %s.", log_target_to_string(target));
log_set_target(target);
log_open();
return 0;
}
BUS_DEFINE_PROPERTY_GET_GLOBAL(bus_property_get_syslog_identifier, "s", program_invocation_short_name);
static const sd_bus_vtable log_control_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", bus_property_get_log_level, bus_property_set_log_level, 0, 0),
SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", bus_property_get_log_target, bus_property_set_log_target, 0, 0),
SD_BUS_PROPERTY("SyslogIdentifier", "s", bus_property_get_syslog_identifier, 0, 0),
/* One of those days we might want to add a similar, second interface to cover common service
* operations such as Reload(), Reexecute(), Exit() … and maybe some properties exposing version
* number and other meta-data of the service. */
SD_BUS_VTABLE_END,
};
const BusObjectImplementation log_control_object = {
"/org/freedesktop/LogControl1",
"org.freedesktop.LogControl1",
.vtables = BUS_VTABLES(log_control_vtable),
};
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