diff options
Diffstat (limited to 'src/grp-system/libcore/src/dbus-mount.c')
| -rw-r--r-- | src/grp-system/libcore/src/dbus-mount.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/grp-system/libcore/src/dbus-mount.c b/src/grp-system/libcore/src/dbus-mount.c new file mode 100644 index 0000000000..f9f396ec70 --- /dev/null +++ b/src/grp-system/libcore/src/dbus-mount.c @@ -0,0 +1,219 @@ +/*** + 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 "core/mount.h" +#include "core/unit.h" +#include "sd-bus/bus-util.h" +#include "systemd-basic/string-util.h" + +#include "dbus-cgroup.h" +#include "dbus-execute.h" +#include "dbus-kill.h" +#include "dbus-mount.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("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("Result", "s", property_get_result, offsetof(Mount, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), + SD_BUS_PROPERTY("UID", "u", NULL, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), + SD_BUS_PROPERTY("GID", "u", NULL, 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, + 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; + + unit_write_drop_in_format(UNIT(m), mode, name, "[Mount]\n%s=%s\n", + name, new_property); + + 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; +} |