[thirdparty/systemd.git] / src / core / dbus-mount.c

/* 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 "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);
        const char *s = NULL;

        assert(bus);
        assert(reply);

        if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
                s = m->parameters_proc_self_mountinfo.what;
        else if (m->from_fragment && m->parameters_fragment.what)
                s = m->parameters_fragment.what;

        if (s) {
                escaped = utf8_escape_invalid(s);
                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);
        const char *s = NULL;

        assert(bus);
        assert(reply);

        if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.options)
                s = m->parameters_proc_self_mountinfo.options;
        else if (m->from_fragment && m->parameters_fragment.options)
                s = m->parameters_fragment.options;

        if (s) {
                escaped = utf8_escape_invalid(s);
                if (!escaped)
                        return -ENOMEM;
        }

        return sd_bus_message_append_basic(reply, 's', escaped);
}

static const char *mount_get_fstype(const Mount *m) {
        if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.fstype)
                return m->parameters_proc_self_mountinfo.fstype;
        else if (m->from_fragment && m->parameters_fragment.fstype)
                return m->parameters_fragment.fstype;
        return NULL;
}

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), 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);

        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"))
                return bus_set_transient_string(u, name, &m->parameters_fragment.what, message, flags, error);

        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;
}
Commit	Line	Data
db9ecf05	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
4139c1b2	2
40af3d02	3	#include "bus-get-properties.h"
07630cea	4	#include "dbus-cgroup.h"
4139c1b2	5	#include "dbus-execute.h"
4ad49000	6	#include "dbus-kill.h"
cf0fbc49	7	#include "dbus-mount.h"
b3f1d540	8	#include "dbus-util.h"
07630cea LP	9	#include "mount.h"
	10	#include "string-util.h"
	11	#include "unit.h"
4804da58 YW	12	#include "utf8.h"
	13
	14	static int property_get_what(
	15	sd_bus *bus,
	16	const char *path,
	17	const char *interface,
	18	const char *property,
	19	sd_bus_message *reply,
	20	void *userdata,
	21	sd_bus_error *error) {
	22
	23	_cleanup_free_ char *escaped = NULL;
	24	Mount *m = ASSERT_PTR(userdata);
	25	const char *s = NULL;
	26
	27	assert(bus);
	28	assert(reply);
718db961	29
4e85aff4	30	if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
4804da58 YW	31	s = m->parameters_proc_self_mountinfo.what;
	32	else if (m->from_fragment && m->parameters_fragment.what)
	33	s = m->parameters_fragment.what;
	34
	35	if (s) {
	36	escaped = utf8_escape_invalid(s);
	37	if (!escaped)
	38	return -ENOMEM;
	39	}
	40
	41	return sd_bus_message_append_basic(reply, 's', escaped);
4e85aff4 LP	42	}
4e85aff4 LP	43
4804da58 YW	44	static int property_get_options(
	45	sd_bus *bus,
	46	const char *path,
	47	const char *interface,
	48	const char *property,
	49	sd_bus_message *reply,
	50	void *userdata,
	51	sd_bus_error *error) {
	52
	53	_cleanup_free_ char *escaped = NULL;
	54	Mount *m = ASSERT_PTR(userdata);
	55	const char *s = NULL;
	56
	57	assert(bus);
	58	assert(reply);
	59
4e85aff4	60	if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.options)
4804da58 YW	61	s = m->parameters_proc_self_mountinfo.options;
	62	else if (m->from_fragment && m->parameters_fragment.options)
	63	s = m->parameters_fragment.options;
	64
	65	if (s) {
	66	escaped = utf8_escape_invalid(s);
	67	if (!escaped)
	68	return -ENOMEM;
	69	}
	70
	71	return sd_bus_message_append_basic(reply, 's', escaped);
4e85aff4 LP	72	}
4e85aff4 LP	73
f724fd4c	74	static const char mount_get_fstype(const Mount m) {
3e3852b3	75	if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.fstype)
f724fd4c	76	return m->parameters_proc_self_mountinfo.fstype;
3e3852b3	77	else if (m->from_fragment && m->parameters_fragment.fstype)
f724fd4c YW	78	return m->parameters_fragment.fstype;
f724fd4c YW	79	return NULL;
4e85aff4 LP	80	}
4e85aff4 LP	81
f724fd4c	82	static BUS_DEFINE_PROPERTY_GET(property_get_type, "s", Mount, mount_get_fstype);
718db961 LP	83	static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, mount_result, MountResult);
	84
	85	const sd_bus_vtable bus_mount_vtable[] = {
	86	SD_BUS_VTABLE_START(0),
556089dc	87	SD_BUS_PROPERTY("Where", "s", NULL, offsetof(Mount, where), SD_BUS_VTABLE_PROPERTY_CONST),
718db961 LP	88	SD_BUS_PROPERTY("What", "s", property_get_what, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
	89	SD_BUS_PROPERTY("Options","s", property_get_options, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
	90	SD_BUS_PROPERTY("Type", "s", property_get_type, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
556089dc	91	SD_BUS_PROPERTY("TimeoutUSec", "t", bus_property_get_usec, offsetof(Mount, timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
718db961	92	SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Mount, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
556089dc	93	SD_BUS_PROPERTY("DirectoryMode", "u", bus_property_get_mode, offsetof(Mount, directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
2dbd4a94	94	SD_BUS_PROPERTY("SloppyOptions", "b", bus_property_get_bool, offsetof(Mount, sloppy_options), SD_BUS_VTABLE_PROPERTY_CONST),
e520950a	95	SD_BUS_PROPERTY("LazyUnmount", "b", bus_property_get_bool, offsetof(Mount, lazy_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
4f8d40a9	96	SD_BUS_PROPERTY("ForceUnmount", "b", bus_property_get_bool, offsetof(Mount, force_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
c600357b	97	SD_BUS_PROPERTY("ReadWriteOnly", "b", bus_property_get_bool, offsetof(Mount, read_write_only), SD_BUS_VTABLE_PROPERTY_CONST),
718db961	98	SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Mount, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
05156503 YW	99	SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
05156503 YW	100	SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
556089dc LP	101	BUS_EXEC_COMMAND_VTABLE("ExecMount", offsetof(Mount, exec_command[MOUNT_EXEC_MOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
	102	BUS_EXEC_COMMAND_VTABLE("ExecUnmount", offsetof(Mount, exec_command[MOUNT_EXEC_UNMOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
	103	BUS_EXEC_COMMAND_VTABLE("ExecRemount", offsetof(Mount, exec_command[MOUNT_EXEC_REMOUNT]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
718db961	104	SD_BUS_VTABLE_END
d200735e MS	105	};
d200735e MS	106
0e252f6b TG	107	static int bus_mount_set_transient_property(
	108	Mount *m,
	109	const char *name,
	110	sd_bus_message *message,
2e59b241	111	UnitWriteFlags flags,
0e252f6b TG	112	sd_bus_error *error) {
0e252f6b TG	113
b3f1d540	114	Unit *u = UNIT(m);
0e252f6b TG	115
	116	assert(m);
	117	assert(name);
	118	assert(message);
	119
2e59b241 LP	120	flags \|= UNIT_PRIVATE;
2e59b241 LP	121
b3f1d540 YW	122	if (streq(name, "Where"))
	123	return bus_set_transient_path(u, name, &m->where, message, flags, error);
	124
0e252f6b	125	if (streq(name, "What"))
b3f1d540 YW	126	return bus_set_transient_string(u, name, &m->parameters_fragment.what, message, flags, error);
	127
	128	if (streq(name, "Options"))
	129	return bus_set_transient_string(u, name, &m->parameters_fragment.options, message, flags, error);
	130
	131	if (streq(name, "Type"))
	132	return bus_set_transient_string(u, name, &m->parameters_fragment.fstype, message, flags, error);
	133
	134	if (streq(name, "TimeoutUSec"))
	135	return bus_set_transient_usec_fix_0(u, name, &m->timeout_usec, message, flags, error);
0e252f6b	136
b3f1d540 YW	137	if (streq(name, "DirectoryMode"))
b3f1d540 YW	138	return bus_set_transient_mode_t(u, name, &m->directory_mode, message, flags, error);
0e252f6b	139
b3f1d540 YW	140	if (streq(name, "SloppyOptions"))
b3f1d540 YW	141	return bus_set_transient_bool(u, name, &m->sloppy_options, message, flags, error);
0e252f6b	142
b3f1d540 YW	143	if (streq(name, "LazyUnmount"))
b3f1d540 YW	144	return bus_set_transient_bool(u, name, &m->lazy_unmount, message, flags, error);
96f5957f	145
b3f1d540 YW	146	if (streq(name, "ForceUnmount"))
b3f1d540 YW	147	return bus_set_transient_bool(u, name, &m->force_unmount, message, flags, error);
0e252f6b	148
c600357b MH	149	if (streq(name, "ReadWriteOnly"))
	150	return bus_set_transient_bool(u, name, &m->read_write_only, message, flags, error);
	151
b3f1d540	152	return 0;
0e252f6b TG	153	}
0e252f6b TG	154
74c964d3 LP	155	int bus_mount_set_property(
	156	Unit *u,
	157	const char *name,
718db961	158	sd_bus_message *message,
2e59b241	159	UnitWriteFlags flags,
718db961	160	sd_bus_error *error) {
74c964d3 LP	161
74c964d3 LP	162	Mount *m = MOUNT(u);
0e252f6b	163	int r;
74c964d3	164
718db961	165	assert(m);
74c964d3	166	assert(name);
718db961	167	assert(message);
74c964d3	168
2e59b241	169	r = bus_cgroup_set_property(u, &m->cgroup_context, name, message, flags, error);
0e252f6b TG	170	if (r != 0)
	171	return r;
	172
	173	if (u->transient && u->load_state == UNIT_STUB) {
	174	/* This is a transient unit, let's load a little more */
	175
2e59b241	176	r = bus_mount_set_transient_property(m, name, message, flags, error);
0e252f6b TG	177	if (r != 0)
	178	return r;
	179
2e59b241	180	r = bus_exec_context_set_transient_property(u, &m->exec_context, name, message, flags, error);
0e252f6b TG	181	if (r != 0)
	182	return r;
	183
2e59b241	184	r = bus_kill_context_set_transient_property(u, &m->kill_context, name, message, flags, error);
0e252f6b TG	185	if (r != 0)
	186	return r;
	187	}
	188
	189	return 0;
74c964d3 LP	190	}
	191
	192	int bus_mount_commit_properties(Unit *u) {
	193	assert(u);
	194
	195	unit_realize_cgroup(u);
bc432dc7	196
74c964d3 LP	197	return 0;
74c964d3 LP	198	}