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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "bus-get-properties.h"
#include "dbus-cgroup.h"
#include "dbus-execute.h"
#include "dbus-kill.h"
#include "dbus-mount.h"
#include "dbus-util.h"
#include "fstab-util.h"
#include "mount.h"
#include "string-util.h"
#include "unit.h"
#include "utf8.h"
static int property_get_what(
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 *escaped = NULL;
Mount *m = ASSERT_PTR(userdata);
assert(bus);
assert(reply);
escaped = mount_get_what_escaped(m);
if (!escaped)
return -ENOMEM;
return sd_bus_message_append_basic(reply, 's', escaped);
}
static int property_get_options(
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 *escaped = NULL;
Mount *m = ASSERT_PTR(userdata);
assert(bus);
assert(reply);
escaped = mount_get_options_escaped(m);
if (!escaped)
return -ENOMEM;
return sd_bus_message_append_basic(reply, 's', escaped);
}
static BUS_DEFINE_PROPERTY_GET(property_get_type, "s", Mount, mount_get_fstype);
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, mount_result, MountResult);
const sd_bus_vtable bus_mount_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Where", "s", NULL, offsetof(Mount, where), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("What", "s", property_get_what, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("Options", "s", property_get_options, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("Type", "s", property_get_type, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("TimeoutUSec", "t", bus_property_get_usec, offsetof(Mount, timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Mount, control_pid.pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("DirectoryMode", "u", bus_property_get_mode, offsetof(Mount, directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SloppyOptions", "b", bus_property_get_bool, offsetof(Mount, sloppy_options), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("LazyUnmount", "b", bus_property_get_bool, offsetof(Mount, lazy_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ForceUnmount", "b", bus_property_get_bool, offsetof(Mount, force_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ReadWriteOnly", "b", bus_property_get_bool, offsetof(Mount, read_write_only), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Mount, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
BUS_EXEC_COMMAND_VTABLE("ExecMount", offsetof(Mount, exec_command[MOUNT_EXEC_MOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_VTABLE("ExecUnmount", offsetof(Mount, exec_command[MOUNT_EXEC_UNMOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_VTABLE("ExecRemount", offsetof(Mount, exec_command[MOUNT_EXEC_REMOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
SD_BUS_VTABLE_END
};
static int bus_mount_set_transient_property(
Mount *m,
const char *name,
sd_bus_message *message,
UnitWriteFlags flags,
sd_bus_error *error) {
Unit *u = UNIT(m);
int r;
assert(m);
assert(name);
assert(message);
flags |= UNIT_PRIVATE;
if (streq(name, "Where"))
return bus_set_transient_path(u, name, &m->where, message, flags, error);
if (streq(name, "What")) {
_cleanup_free_ char *path = NULL;
const char *v;
r = sd_bus_message_read(message, "s", &v);
if (r < 0)
return r;
if (!isempty(v)) {
path = fstab_node_to_udev_node(v);
if (!path)
return -ENOMEM;
/* path_is_valid is not used - see the comment for config_parse_mount_node */
if (strlen(path) >= PATH_MAX)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Resolved What=%s too long", path);
}
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
free_and_replace(m->parameters_fragment.what, path);
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "What=%s", strempty(m->parameters_fragment.what));
}
return 1;
}
if (streq(name, "Options"))
return bus_set_transient_string(u, name, &m->parameters_fragment.options, message, flags, error);
if (streq(name, "Type"))
return bus_set_transient_string(u, name, &m->parameters_fragment.fstype, message, flags, error);
if (streq(name, "TimeoutUSec"))
return bus_set_transient_usec_fix_0(u, name, &m->timeout_usec, message, flags, error);
if (streq(name, "DirectoryMode"))
return bus_set_transient_mode_t(u, name, &m->directory_mode, message, flags, error);
if (streq(name, "SloppyOptions"))
return bus_set_transient_bool(u, name, &m->sloppy_options, message, flags, error);
if (streq(name, "LazyUnmount"))
return bus_set_transient_bool(u, name, &m->lazy_unmount, message, flags, error);
if (streq(name, "ForceUnmount"))
return bus_set_transient_bool(u, name, &m->force_unmount, message, flags, error);
if (streq(name, "ReadWriteOnly"))
return bus_set_transient_bool(u, name, &m->read_write_only, message, flags, error);
return 0;
}
int bus_mount_set_property(
Unit *u,
const char *name,
sd_bus_message *message,
UnitWriteFlags flags,
sd_bus_error *error) {
Mount *m = MOUNT(u);
int r;
assert(m);
assert(name);
assert(message);
r = bus_cgroup_set_property(u, &m->cgroup_context, name, message, flags, error);
if (r != 0)
return r;
if (u->transient && u->load_state == UNIT_STUB) {
/* This is a transient unit, let's load a little more */
r = bus_mount_set_transient_property(m, name, message, flags, error);
if (r != 0)
return r;
r = bus_exec_context_set_transient_property(u, &m->exec_context, name, message, flags, error);
if (r != 0)
return r;
r = bus_kill_context_set_transient_property(u, &m->kill_context, name, message, flags, error);
if (r != 0)
return r;
}
return 0;
}
int bus_mount_commit_properties(Unit *u) {
assert(u);
unit_realize_cgroup(u);
return 0;
}
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