/***
This file is part of systemd.
Copyright 2010 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 "bus-util.h"
#include "dbus-cgroup.h"
#include "dbus-execute.h"
#include "dbus-kill.h"
#include "dbus-mount.h"
#include "mount.h"
#include "string-util.h"
#include "unit.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) {
Mount *m = userdata;
const char *d;
assert(bus);
assert(reply);
assert(m);
if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
d = m->parameters_proc_self_mountinfo.what;
else if (m->from_fragment && m->parameters_fragment.what)
d = m->parameters_fragment.what;
else
d = "";
return sd_bus_message_append(reply, "s", d);
}
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) {
Mount *m = userdata;
const char *d;
assert(bus);
assert(reply);
assert(m);
if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.options)
d = m->parameters_proc_self_mountinfo.options;
else if (m->from_fragment && m->parameters_fragment.options)
d = m->parameters_fragment.options;
else
d = "";
return sd_bus_message_append(reply, "s", d);
}
static int property_get_type(
sd_bus *bus,
const char *path,
const char *interface,
const char *property,
sd_bus_message *reply,
void *userdata,
sd_bus_error *error) {
Mount *m = userdata;
const char *d;
assert(bus);
assert(reply);
assert(m);
if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.fstype)
d = m->parameters_proc_self_mountinfo.fstype;
else if (m->from_fragment && m->parameters_fragment.fstype)
d = m->parameters_fragment.fstype;
else
d = "";
return sd_bus_message_append(reply, "s", d);
}
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), 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("Result", "s", property_get_result, offsetof(Mount, result), 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,
UnitSetPropertiesMode mode,
sd_bus_error *error) {
const char *new_property;
char **property;
char *p;
int r;
assert(m);
assert(name);
assert(message);
if (streq(name, "What"))
property = &m->parameters_fragment.what;
else if (streq(name, "Options"))
property = &m->parameters_fragment.options;
else if (streq(name, "Type"))
property = &m->parameters_fragment.fstype;
else
return 0;
r = sd_bus_message_read(message, "s", &new_property);
if (r < 0)
return r;
if (mode != UNIT_CHECK) {
p = strdup(new_property);
if (!p)
return -ENOMEM;
free(*property);
*property = p;
}
return 1;
}
int bus_mount_set_property(
Unit *u,
const char *name,
sd_bus_message *message,
UnitSetPropertiesMode mode,
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, mode, 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, mode, error);
if (r != 0)
return r;
r = bus_exec_context_set_transient_property(u, &m->exec_context, name, message, mode, error);
if (r != 0)
return r;
r = bus_kill_context_set_transient_property(u, &m->kill_context, name, message, mode, error);
if (r != 0)
return r;
}
return 0;
}
int bus_mount_commit_properties(Unit *u) {
assert(u);
unit_update_cgroup_members_masks(u);
unit_realize_cgroup(u);
return 0;
}