[deliverable/linux.git] / include / linux / drbd_genl.h

/*
 * General overview:
 * full generic netlink message:
 * |nlmsghdr|genlmsghdr|<payload>
 *
 * payload:
 * |optional fixed size family header|<sequence of netlink attributes>
 *
 * sequence of netlink attributes:
 * I chose to have all "top level" attributes NLA_NESTED,
 * corresponding to some real struct.
 * So we have a sequence of |tla, len|<nested nla sequence>
 *
 * nested nla sequence:
 * may be empty, or contain a sequence of netlink attributes
 * representing the struct fields.
 *
 * The tag number of any field (regardless of containing struct)
 * will be available as T_ ## field_name,
 * so you cannot have the same field name in two differnt structs.
 *
 * The tag numbers themselves are per struct, though,
 * so should always begin at 1 (not 0, that is the special "NLA_UNSPEC" type,
 * which we won't use here).
 * The tag numbers are used as index in the respective nla_policy array.
 *
 * GENL_struct(tag_name, tag_number, struct name, struct fields) - struct and policy
 *	genl_magic_struct.h
 *		generates the struct declaration,
 *		generates an entry in the tla enum,
 *	genl_magic_func.h
 *		generates an entry in the static tla policy
 *		with .type = NLA_NESTED
 *		generates the static <struct_name>_nl_policy definition,
 *		and static conversion functions
 *
 *	genl_magic_func.h
 *
 * GENL_mc_group(group)
 *	genl_magic_struct.h
 *		does nothing
 *	genl_magic_func.h
 *		defines and registers the mcast group,
 *		and provides a send helper
 *
 * GENL_notification(op_name, op_num, mcast_group, tla list)
 *	These are notifications to userspace.
 *
 *	genl_magic_struct.h
 *		generates an entry in the genl_ops enum,
 *	genl_magic_func.h
 *		does nothing
 *
 *	mcast group: the name of the mcast group this notification should be
 *	expected on
 *	tla list: the list of expected top level attributes,
 *	for documentation and sanity checking.
 *
 * GENL_op(op_name, op_num, flags and handler, tla list) - "genl operations"
 *	These are requests from userspace.
 *
 *	_op and _notification share the same "number space",
 *	op_nr will be assigned to "genlmsghdr->cmd"
 *
 *	genl_magic_struct.h
 *		generates an entry in the genl_ops enum,
 *	genl_magic_func.h
 *		generates an entry in the static genl_ops array,
 *		and static register/unregister functions to
 *		genl_register_family_with_ops().
 *
 *	flags and handler:
 *		GENL_op_init( .doit = x, .dumpit = y, .flags = something)
 *		GENL_doit(x) => .dumpit = NULL, .flags = GENL_ADMIN_PERM
 *	tla list: the list of expected top level attributes,
 *	for documentation and sanity checking.
 */

/*
 * STRUCTS
 */

/* this is sent kernel -> userland on various error conditions, and contains
 * informational textual info, which is supposedly human readable.
 * The computer relevant return code is in the drbd_genlmsghdr.
 */
GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
		/* "arbitrary" size strings, nla_policy.len = 0 */
	__str_field(1, GENLA_F_MANDATORY,	info_text, 0)
)

/* Configuration requests typically need a context to operate on.
 * Possible keys are device minor (fits in the drbd_genlmsghdr),
 * the replication link (aka connection) name,
 * and/or the replication group (aka resource) name,
 * and the volume id within the resource. */
GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context,
		/* currently only 256 volumes per group,
		 * but maybe we still change that */
	__u32_field(1, GENLA_F_MANDATORY,	ctx_volume)
	__str_field(2, GENLA_F_MANDATORY,	ctx_conn_name, 128)
)

GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
	__u64_field(1, GENLA_F_MANDATORY,	disk_size)
	__str_field(2, GENLA_F_REQUIRED,	backing_dev,	128)
	__str_field(3, GENLA_F_REQUIRED,	meta_dev,	128)
	__u32_field(4, GENLA_F_REQUIRED,	meta_dev_idx)
	__u32_field(5, GENLA_F_MANDATORY,	max_bio_bvecs)
	__u32_field(6, GENLA_F_MANDATORY,	on_io_error)
	__u32_field(7, GENLA_F_MANDATORY,	fencing)
	__flg_field(8, GENLA_F_MANDATORY,	no_disk_barrier)
	__flg_field(9, GENLA_F_MANDATORY,	no_disk_flush)
	__flg_field(10, GENLA_F_MANDATORY,	no_disk_drain)
	__flg_field(11, GENLA_F_MANDATORY,	no_md_flush)
	__flg_field(12, GENLA_F_MANDATORY,	use_bmbv)
)

GENL_struct(DRBD_NLA_SYNCER_CONF, 4, syncer_conf,
	__u32_field(1,	GENLA_F_MANDATORY,	rate)
	__u32_field(2,	GENLA_F_MANDATORY,	after)
	__u32_field(3,	GENLA_F_MANDATORY,	al_extents)
	__str_field(4,	GENLA_F_MANDATORY,	cpu_mask,       32)
	__str_field(5,	GENLA_F_MANDATORY,	verify_alg,     SHARED_SECRET_MAX)
	__str_field(6,	GENLA_F_MANDATORY,	csums_alg,	SHARED_SECRET_MAX)
	__flg_field(7,	GENLA_F_MANDATORY,	use_rle)
	__u32_field(8,	GENLA_F_MANDATORY,	on_no_data)
	__u32_field(9,	GENLA_F_MANDATORY,	c_plan_ahead)
	__u32_field(10,	GENLA_F_MANDATORY,	c_delay_target)
	__u32_field(11,	GENLA_F_MANDATORY,	c_fill_target)
	__u32_field(12,	GENLA_F_MANDATORY,	c_max_rate)
	__u32_field(13,	GENLA_F_MANDATORY,	c_min_rate)
)

GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
	__str_field(1,	GENLA_F_MANDATORY | GENLA_F_SENSITIVE,
						shared_secret,	SHARED_SECRET_MAX)
	__str_field(2,	GENLA_F_MANDATORY,	cram_hmac_alg,	SHARED_SECRET_MAX)
	__str_field(3,	GENLA_F_MANDATORY,	integrity_alg,	SHARED_SECRET_MAX)
	__str_field(4,	GENLA_F_REQUIRED,	my_addr,	128)
	__str_field(5,	GENLA_F_REQUIRED,	peer_addr,	128)
	__u32_field(6,	GENLA_F_REQUIRED,	wire_protocol)
	__u32_field(7,	GENLA_F_MANDATORY,	try_connect_int)
	__u32_field(8,	GENLA_F_MANDATORY,	timeout)
	__u32_field(9,	GENLA_F_MANDATORY,	ping_int)
	__u32_field(10,	GENLA_F_MANDATORY,	ping_timeo)
	__u32_field(11,	GENLA_F_MANDATORY,	sndbuf_size)
	__u32_field(12,	GENLA_F_MANDATORY,	rcvbuf_size)
	__u32_field(13,	GENLA_F_MANDATORY,	ko_count)
	__u32_field(14,	GENLA_F_MANDATORY,	max_buffers)
	__u32_field(15,	GENLA_F_MANDATORY,	max_epoch_size)
	__u32_field(16,	GENLA_F_MANDATORY,	unplug_watermark)
	__u32_field(17,	GENLA_F_MANDATORY,	after_sb_0p)
	__u32_field(18,	GENLA_F_MANDATORY,	after_sb_1p)
	__u32_field(19,	GENLA_F_MANDATORY,	after_sb_2p)
	__u32_field(20,	GENLA_F_MANDATORY,	rr_conflict)
	__u32_field(21,	GENLA_F_MANDATORY,	on_congestion)
	__u32_field(22,	GENLA_F_MANDATORY,	cong_fill)
	__u32_field(23,	GENLA_F_MANDATORY,	cong_extents)
	__flg_field(24, GENLA_F_MANDATORY,	two_primaries)
	__flg_field(25, GENLA_F_MANDATORY,	want_lose)
	__flg_field(26, GENLA_F_MANDATORY,	no_cork)
	__flg_field(27, GENLA_F_MANDATORY,	always_asbp)
	__flg_field(28, GENLA_F_MANDATORY,	dry_run)
)

GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
	__flg_field(1, GENLA_F_MANDATORY,	assume_uptodate)
)

GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
	__u64_field(1, GENLA_F_MANDATORY,	resize_size)
	__flg_field(2, GENLA_F_MANDATORY,	resize_force)
	__flg_field(3, GENLA_F_MANDATORY,	no_resync)
)

GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
	/* the reason of the broadcast,
	 * if this is an event triggered broadcast. */
	__u32_field(1, GENLA_F_MANDATORY,	sib_reason)
	__u32_field(2, GENLA_F_REQUIRED,	current_state)
	__u64_field(3, GENLA_F_MANDATORY,	capacity)
	__u64_field(4, GENLA_F_MANDATORY,	ed_uuid)

	/* These are for broadcast from after state change work.
	 * prev_state and new_state are from the moment the state change took
	 * place, new_state is not neccessarily the same as current_state,
	 * there may have been more state changes since.  Which will be
	 * broadcasted soon, in their respective after state change work.  */
	__u32_field(5, GENLA_F_MANDATORY,	prev_state)
	__u32_field(6, GENLA_F_MANDATORY,	new_state)

	/* if we have a local disk: */
	__bin_field(7, GENLA_F_MANDATORY,	uuids, (UI_SIZE*sizeof(__u64)))
	__u32_field(8, GENLA_F_MANDATORY,	disk_flags)
	__u64_field(9, GENLA_F_MANDATORY,	bits_total)
	__u64_field(10, GENLA_F_MANDATORY,	bits_oos)
	/* and in case resync or online verify is active */
	__u64_field(11, GENLA_F_MANDATORY,	bits_rs_total)
	__u64_field(12, GENLA_F_MANDATORY,	bits_rs_failed)

	/* for pre and post notifications of helper execution */
	__str_field(13, GENLA_F_MANDATORY,	helper, 32)
	__u32_field(14, GENLA_F_MANDATORY,	helper_exit_code)
)

GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
	__u64_field(1, GENLA_F_MANDATORY,	ov_start_sector)
)

GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
	__flg_field(1, GENLA_F_MANDATORY, clear_bm)
)

GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
	__u32_field(1,	GENLA_F_REQUIRED,	timeout_type)
)

GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
	__flg_field(1, GENLA_F_MANDATORY,	force_disconnect)
)

/*
 * Notifications and commands (genlmsghdr->cmd)
 */
GENL_mc_group(events)

	/* kernel -> userspace announcement of changes */
GENL_notification(
	DRBD_EVENT, 1, events,
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_STATE_INFO, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_MANDATORY)
	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_MANDATORY)
	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
)

	/* query kernel for specific or all info */
GENL_op(
	DRBD_ADM_GET_STATUS, 2,
	GENL_op_init(
		.doit = drbd_adm_get_status,
		.dumpit = drbd_adm_get_status_all,
		/* anyone may ask for the status,
		 * it is broadcasted anyways */
	),
	/* To select the object .doit.
	 * Or a subset of objects in .dumpit. */
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_MANDATORY)
)

#if 0
	/* TO BE DONE */
	/* create or destroy resources, aka replication groups */
GENL_op(DRBD_ADM_CREATE_RESOURCE, 3, GENL_doit(drbd_adm_create_resource),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DELETE_RESOURCE, 4, GENL_doit(drbd_adm_delete_resource),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
#endif

	/* add DRBD minor devices as volumes to resources */
GENL_op(DRBD_ADM_ADD_MINOR, 5, GENL_doit(drbd_adm_add_minor),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_delete_minor),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

	/* add or delete replication links to resources */
GENL_op(DRBD_ADM_ADD_LINK, 7, GENL_doit(drbd_adm_create_connection),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

	/* operates on replication links */
GENL_op(DRBD_ADM_SYNCER, 9,
	GENL_doit(drbd_adm_syncer),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
)

GENL_op(
	DRBD_ADM_CONNECT, 10,
	GENL_doit(drbd_adm_connect),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
)

GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

	/* operates on minors */
GENL_op(DRBD_ADM_ATTACH, 12,
	GENL_doit(drbd_adm_attach),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_RESIZE, 13,
	GENL_doit(drbd_adm_resize),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
)

	/* operates on all volumes within a resource */
GENL_op(
	DRBD_ADM_PRIMARY, 14,
	GENL_doit(drbd_adm_set_role),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_SECONDARY, 15,
	GENL_doit(drbd_adm_set_role),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_NEW_C_UUID, 16,
	GENL_doit(drbd_adm_new_c_uuid),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, GENLA_F_MANDATORY)
)

GENL_op(
	DRBD_ADM_START_OV, 17,
	GENL_doit(drbd_adm_start_ov),
	GENL_tla_expected(DRBD_NLA_START_OV_PARMS, GENLA_F_MANDATORY)
)

GENL_op(DRBD_ADM_DETACH,	18, GENL_doit(drbd_adm_detach),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_INVALIDATE,	19, GENL_doit(drbd_adm_invalidate),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_INVAL_PEER,	20, GENL_doit(drbd_adm_invalidate_peer),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_PAUSE_SYNC,	21, GENL_doit(drbd_adm_pause_sync),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_SYNC,	22, GENL_doit(drbd_adm_resume_sync),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_SUSPEND_IO,	23, GENL_doit(drbd_adm_suspend_io),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_IO,	24, GENL_doit(drbd_adm_resume_io),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_OUTDATE,	25, GENL_doit(drbd_adm_outdate),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
Commit	Line	Data
ec2c35ac LE	1	/*
	2	* General overview:
	3	* full generic netlink message:
	4	* \|nlmsghdr\|genlmsghdr\|<payload>
	5	*
	6	* payload:
	7	* \|optional fixed size family header\|<sequence of netlink attributes>
	8	*
	9	* sequence of netlink attributes:
	10	* I chose to have all "top level" attributes NLA_NESTED,
	11	* corresponding to some real struct.
	12	* So we have a sequence of \|tla, len\|<nested nla sequence>
	13	*
	14	* nested nla sequence:
	15	* may be empty, or contain a sequence of netlink attributes
	16	* representing the struct fields.
	17	*
	18	* The tag number of any field (regardless of containing struct)
	19	* will be available as T_ ## field_name,
	20	* so you cannot have the same field name in two differnt structs.
	21	*
	22	* The tag numbers themselves are per struct, though,
	23	* so should always begin at 1 (not 0, that is the special "NLA_UNSPEC" type,
	24	* which we won't use here).
	25	* The tag numbers are used as index in the respective nla_policy array.
	26	*
	27	* GENL_struct(tag_name, tag_number, struct name, struct fields) - struct and policy
	28	* genl_magic_struct.h
	29	* generates the struct declaration,
	30	* generates an entry in the tla enum,
	31	* genl_magic_func.h
	32	* generates an entry in the static tla policy
	33	* with .type = NLA_NESTED
	34	* generates the static <struct_name>_nl_policy definition,
	35	* and static conversion functions
	36	*
	37	* genl_magic_func.h
	38	*
	39	* GENL_mc_group(group)
	40	* genl_magic_struct.h
	41	* does nothing
	42	* genl_magic_func.h
	43	* defines and registers the mcast group,
	44	* and provides a send helper
	45	*
	46	* GENL_notification(op_name, op_num, mcast_group, tla list)
	47	* These are notifications to userspace.
	48	*
	49	* genl_magic_struct.h
	50	* generates an entry in the genl_ops enum,
	51	* genl_magic_func.h
	52	* does nothing
	53	*
	54	* mcast group: the name of the mcast group this notification should be
	55	* expected on
	56	* tla list: the list of expected top level attributes,
	57	* for documentation and sanity checking.
	58	*
	59	* GENL_op(op_name, op_num, flags and handler, tla list) - "genl operations"
	60	* These are requests from userspace.
	61	*
	62	* _op and _notification share the same "number space",
	63	* op_nr will be assigned to "genlmsghdr->cmd"
	64	*
65	* genl_magic_struct.h
66	* generates an entry in the genl_ops enum,
67	* genl_magic_func.h
68	* generates an entry in the static genl_ops array,
69	* and static register/unregister functions to
70	* genl_register_family_with_ops().
71	*
72	* flags and handler:
73	* GENL_op_init( .doit = x, .dumpit = y, .flags = something)
74	* GENL_doit(x) => .dumpit = NULL, .flags = GENL_ADMIN_PERM
75	* tla list: the list of expected top level attributes,
76	* for documentation and sanity checking.
77	*/
78
79	/*
80	* STRUCTS
81	*/
82
83	/* this is sent kernel -> userland on various error conditions, and contains
84	* informational textual info, which is supposedly human readable.
85	* The computer relevant return code is in the drbd_genlmsghdr.
86	*/
87	GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
88	/* "arbitrary" size strings, nla_policy.len = 0 */
89	__str_field(1, GENLA_F_MANDATORY, info_text, 0)
90	)
91
92	/* Configuration requests typically need a context to operate on.
93	* Possible keys are device minor (fits in the drbd_genlmsghdr),
94	* the replication link (aka connection) name,
95	* and/or the replication group (aka resource) name,
96	* and the volume id within the resource. */
97	GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context,
98	/* currently only 256 volumes per group,
99	* but maybe we still change that */
100	__u32_field(1, GENLA_F_MANDATORY, ctx_volume)
101	__str_field(2, GENLA_F_MANDATORY, ctx_conn_name, 128)
102	)
103
104	GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
105	__u64_field(1, GENLA_F_MANDATORY, disk_size)
106	__str_field(2, GENLA_F_REQUIRED, backing_dev, 128)
107	__str_field(3, GENLA_F_REQUIRED, meta_dev, 128)
108	__u32_field(4, GENLA_F_REQUIRED, meta_dev_idx)
109	__u32_field(5, GENLA_F_MANDATORY, max_bio_bvecs)
110	__u32_field(6, GENLA_F_MANDATORY, on_io_error)
111	__u32_field(7, GENLA_F_MANDATORY, fencing)
112	__flg_field(8, GENLA_F_MANDATORY, no_disk_barrier)
113	__flg_field(9, GENLA_F_MANDATORY, no_disk_flush)
114	__flg_field(10, GENLA_F_MANDATORY, no_disk_drain)
115	__flg_field(11, GENLA_F_MANDATORY, no_md_flush)
116	__flg_field(12, GENLA_F_MANDATORY, use_bmbv)
117	)
118
119	GENL_struct(DRBD_NLA_SYNCER_CONF, 4, syncer_conf,
120	__u32_field(1, GENLA_F_MANDATORY, rate)
121	__u32_field(2, GENLA_F_MANDATORY, after)
122	__u32_field(3, GENLA_F_MANDATORY, al_extents)
123	__str_field(4, GENLA_F_MANDATORY, cpu_mask, 32)
124	__str_field(5, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
125	__str_field(6, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
126	__flg_field(7, GENLA_F_MANDATORY, use_rle)
127	__u32_field(8, GENLA_F_MANDATORY, on_no_data)
128	__u32_field(9, GENLA_F_MANDATORY, c_plan_ahead)
129	__u32_field(10, GENLA_F_MANDATORY, c_delay_target)
130	__u32_field(11, GENLA_F_MANDATORY, c_fill_target)
131	__u32_field(12, GENLA_F_MANDATORY, c_max_rate)
132	__u32_field(13, GENLA_F_MANDATORY, c_min_rate)
133	)
134
135	GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
136	__str_field(1, GENLA_F_MANDATORY \| GENLA_F_SENSITIVE,
137	shared_secret, SHARED_SECRET_MAX)
138	__str_field(2, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
139	__str_field(3, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
140	__str_field(4, GENLA_F_REQUIRED, my_addr, 128)
141	__str_field(5, GENLA_F_REQUIRED, peer_addr, 128)
142	__u32_field(6, GENLA_F_REQUIRED, wire_protocol)
143	__u32_field(7, GENLA_F_MANDATORY, try_connect_int)
144	__u32_field(8, GENLA_F_MANDATORY, timeout)
145	__u32_field(9, GENLA_F_MANDATORY, ping_int)
146	__u32_field(10, GENLA_F_MANDATORY, ping_timeo)
147	__u32_field(11, GENLA_F_MANDATORY, sndbuf_size)
148	__u32_field(12, GENLA_F_MANDATORY, rcvbuf_size)
149	__u32_field(13, GENLA_F_MANDATORY, ko_count)
150	__u32_field(14, GENLA_F_MANDATORY, max_buffers)
151	__u32_field(15, GENLA_F_MANDATORY, max_epoch_size)
152	__u32_field(16, GENLA_F_MANDATORY, unplug_watermark)
153	__u32_field(17, GENLA_F_MANDATORY, after_sb_0p)
154	__u32_field(18, GENLA_F_MANDATORY, after_sb_1p)
155	__u32_field(19, GENLA_F_MANDATORY, after_sb_2p)
156	__u32_field(20, GENLA_F_MANDATORY, rr_conflict)
157	__u32_field(21, GENLA_F_MANDATORY, on_congestion)
158	__u32_field(22, GENLA_F_MANDATORY, cong_fill)
159	__u32_field(23, GENLA_F_MANDATORY, cong_extents)
160	__flg_field(24, GENLA_F_MANDATORY, two_primaries)
161	__flg_field(25, GENLA_F_MANDATORY, want_lose)
162	__flg_field(26, GENLA_F_MANDATORY, no_cork)
163	__flg_field(27, GENLA_F_MANDATORY, always_asbp)
164	__flg_field(28, GENLA_F_MANDATORY, dry_run)
165	)
166
167	GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
168	__flg_field(1, GENLA_F_MANDATORY, assume_uptodate)
169	)
170
171	GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
172	__u64_field(1, GENLA_F_MANDATORY, resize_size)
173	__flg_field(2, GENLA_F_MANDATORY, resize_force)
174	__flg_field(3, GENLA_F_MANDATORY, no_resync)
175	)
176
177	GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
178	/* the reason of the broadcast,
179	* if this is an event triggered broadcast. */
180	__u32_field(1, GENLA_F_MANDATORY, sib_reason)
181	__u32_field(2, GENLA_F_REQUIRED, current_state)
182	__u64_field(3, GENLA_F_MANDATORY, capacity)
183	__u64_field(4, GENLA_F_MANDATORY, ed_uuid)
184
185	/* These are for broadcast from after state change work.
186	* prev_state and new_state are from the moment the state change took
187	* place, new_state is not neccessarily the same as current_state,
188	* there may have been more state changes since. Which will be
189	* broadcasted soon, in their respective after state change work. */
190	__u32_field(5, GENLA_F_MANDATORY, prev_state)
191	__u32_field(6, GENLA_F_MANDATORY, new_state)
192
193	/* if we have a local disk: */
194	__bin_field(7, GENLA_F_MANDATORY, uuids, (UI_SIZE*sizeof(__u64)))
195	__u32_field(8, GENLA_F_MANDATORY, disk_flags)
196	__u64_field(9, GENLA_F_MANDATORY, bits_total)
197	__u64_field(10, GENLA_F_MANDATORY, bits_oos)
198	/* and in case resync or online verify is active */
199	__u64_field(11, GENLA_F_MANDATORY, bits_rs_total)
200	__u64_field(12, GENLA_F_MANDATORY, bits_rs_failed)
201
202	/* for pre and post notifications of helper execution */
203	__str_field(13, GENLA_F_MANDATORY, helper, 32)
204	__u32_field(14, GENLA_F_MANDATORY, helper_exit_code)
205	)
206
207	GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
208	__u64_field(1, GENLA_F_MANDATORY, ov_start_sector)
209	)
210
211	GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
212	__flg_field(1, GENLA_F_MANDATORY, clear_bm)
213	)
214
215	GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
216	__u32_field(1, GENLA_F_REQUIRED, timeout_type)
217	)
218
219	GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
220	__flg_field(1, GENLA_F_MANDATORY, force_disconnect)
221	)
222
223	/*
224	* Notifications and commands (genlmsghdr->cmd)
225	*/
226	GENL_mc_group(events)
227
228	/* kernel -> userspace announcement of changes */
229	GENL_notification(
230	DRBD_EVENT, 1, events,
231	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
232	GENL_tla_expected(DRBD_NLA_STATE_INFO, GENLA_F_REQUIRED)
233	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_MANDATORY)
234	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_MANDATORY)
235	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
236	)
237
238	/* query kernel for specific or all info */
239	GENL_op(
240	DRBD_ADM_GET_STATUS, 2,
241	GENL_op_init(
242	.doit = drbd_adm_get_status,
243	.dumpit = drbd_adm_get_status_all,
244	/* anyone may ask for the status,
245	* it is broadcasted anyways */
246	),
247	/* To select the object .doit.
248	* Or a subset of objects in .dumpit. */
249	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_MANDATORY)
250	)
251
252	#if 0
253	/* TO BE DONE */
254	/* create or destroy resources, aka replication groups */
255	GENL_op(DRBD_ADM_CREATE_RESOURCE, 3, GENL_doit(drbd_adm_create_resource),
256	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
257	GENL_op(DRBD_ADM_DELETE_RESOURCE, 4, GENL_doit(drbd_adm_delete_resource),
258	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
259	#endif
260
261	/* add DRBD minor devices as volumes to resources */
262	GENL_op(DRBD_ADM_ADD_MINOR, 5, GENL_doit(drbd_adm_add_minor),
263	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
264	GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_delete_minor),
265	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
266
267	/* add or delete replication links to resources */
268	GENL_op(DRBD_ADM_ADD_LINK, 7, GENL_doit(drbd_adm_create_connection),
269	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
270	GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
271	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
272
273	/* operates on replication links */
274	GENL_op(DRBD_ADM_SYNCER, 9,
275	GENL_doit(drbd_adm_syncer),
276	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
277	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
278	)
279
280	GENL_op(
281	DRBD_ADM_CONNECT, 10,
282	GENL_doit(drbd_adm_connect),
283	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
284	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
285	)
286
287	GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
288	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
289
290	/* operates on minors */
291	GENL_op(DRBD_ADM_ATTACH, 12,
292	GENL_doit(drbd_adm_attach),
293	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
294	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
295	)
296
297	GENL_op(
298	DRBD_ADM_RESIZE, 13,
299	GENL_doit(drbd_adm_resize),
300	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
301	GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
302	)
303
304	/* operates on all volumes within a resource */
305	GENL_op(
306	DRBD_ADM_PRIMARY, 14,
307	GENL_doit(drbd_adm_set_role),
308	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
309	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
310	)
311
312	GENL_op(
313	DRBD_ADM_SECONDARY, 15,
314	GENL_doit(drbd_adm_set_role),
315	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
316	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
317	)
318
319	GENL_op(
320	DRBD_ADM_NEW_C_UUID, 16,
321	GENL_doit(drbd_adm_new_c_uuid),
322	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
323	GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, GENLA_F_MANDATORY)
324	)
325
326	GENL_op(
327	DRBD_ADM_START_OV, 17,
328	GENL_doit(drbd_adm_start_ov),
329	GENL_tla_expected(DRBD_NLA_START_OV_PARMS, GENLA_F_MANDATORY)
330	)
331
332	GENL_op(DRBD_ADM_DETACH, 18, GENL_doit(drbd_adm_detach),
333	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
334	GENL_op(DRBD_ADM_INVALIDATE, 19, GENL_doit(drbd_adm_invalidate),
335	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
336	GENL_op(DRBD_ADM_INVAL_PEER, 20, GENL_doit(drbd_adm_invalidate_peer),
337	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
338	GENL_op(DRBD_ADM_PAUSE_SYNC, 21, GENL_doit(drbd_adm_pause_sync),
339	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
340	GENL_op(DRBD_ADM_RESUME_SYNC, 22, GENL_doit(drbd_adm_resume_sync),
341	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
342	GENL_op(DRBD_ADM_SUSPEND_IO, 23, GENL_doit(drbd_adm_suspend_io),
343	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
344	GENL_op(DRBD_ADM_RESUME_IO, 24, GENL_doit(drbd_adm_resume_io),
345	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
346	GENL_op(DRBD_ADM_OUTDATE, 25, GENL_doit(drbd_adm_outdate),
347	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
348	GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
349	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))