1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * iSCSI transport class definitions |
4 | * |
5 | * Copyright (C) IBM Corporation, 2004 |
6 | * Copyright (C) Mike Christie, 2004 - 2006 |
7 | * Copyright (C) Dmitry Yusupov, 2004 - 2005 |
8 | * Copyright (C) Alex Aizman, 2004 - 2005 |
9 | */ |
10 | #ifndef SCSI_TRANSPORT_ISCSI_H |
11 | #define SCSI_TRANSPORT_ISCSI_H |
12 | |
13 | #include <linux/device.h> |
14 | #include <linux/list.h> |
15 | #include <linux/mutex.h> |
16 | #include <scsi/iscsi_if.h> |
17 | |
18 | struct scsi_transport_template; |
19 | struct iscsi_transport; |
20 | struct iscsi_endpoint; |
21 | struct Scsi_Host; |
22 | struct scsi_cmnd; |
23 | struct iscsi_cls_conn; |
24 | struct iscsi_conn; |
25 | struct iscsi_task; |
26 | struct sockaddr; |
27 | struct iscsi_iface; |
28 | struct bsg_job; |
29 | struct iscsi_bus_flash_session; |
30 | struct iscsi_bus_flash_conn; |
31 | |
32 | /** |
33 | * struct iscsi_transport - iSCSI Transport template |
34 | * |
35 | * @name: transport name |
36 | * @caps: iSCSI Data-Path capabilities |
37 | * @create_session: create new iSCSI session object |
38 | * @destroy_session: destroy existing iSCSI session object |
39 | * @create_conn: create new iSCSI connection |
40 | * @bind_conn: associate this connection with existing iSCSI session |
41 | * and specified transport descriptor |
42 | * @destroy_conn: destroy inactive iSCSI connection |
43 | * @set_param: set iSCSI parameter. Return 0 on success, -ENODATA |
44 | * when param is not supported, and a -Exx value on other |
45 | * error. |
46 | * @get_param get iSCSI parameter. Must return number of bytes |
47 | * copied to buffer on success, -ENODATA when param |
48 | * is not supported, and a -Exx value on other error |
49 | * @start_conn: set connection to be operational |
50 | * @stop_conn: suspend/recover/terminate connection |
51 | * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. |
52 | * @session_recovery_timedout: notify LLD a block during recovery timed out |
53 | * @init_task: Initialize a iscsi_task and any internal structs. |
54 | * When offloading the data path, this is called from |
55 | * queuecommand with the session lock, or from the |
56 | * iscsi_conn_send_pdu context with the session lock. |
57 | * When not offloading the data path, this is called |
58 | * from the scsi work queue without the session lock. |
59 | * @xmit_task Requests LLD to transfer cmd task. Returns 0 or the |
60 | * number of bytes transferred on success, and -Exyz |
61 | * value on error. When offloading the data path, this |
62 | * is called from queuecommand with the session lock, or |
63 | * from the iscsi_conn_send_pdu context with the session |
64 | * lock. When not offloading the data path, this is called |
65 | * from the scsi work queue without the session lock. |
66 | * @cleanup_task: requests LLD to fail task. Called with session lock |
67 | * and after the connection has been suspended and |
68 | * terminated during recovery. If called |
69 | * from abort task then connection is not suspended |
70 | * or terminated but sk_callback_lock is held |
71 | * |
72 | * Template API provided by iSCSI Transport |
73 | */ |
74 | struct iscsi_transport { |
75 | struct module *owner; |
76 | char *name; |
77 | unsigned int caps; |
78 | |
79 | struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep, |
80 | uint16_t cmds_max, uint16_t qdepth, |
81 | uint32_t sn); |
82 | void (*destroy_session) (struct iscsi_cls_session *session); |
83 | struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, |
84 | uint32_t cid); |
85 | void (*unbind_conn) (struct iscsi_cls_conn *conn, bool is_active); |
86 | int (*bind_conn) (struct iscsi_cls_session *session, |
87 | struct iscsi_cls_conn *cls_conn, |
88 | uint64_t transport_eph, int is_leading); |
89 | int (*start_conn) (struct iscsi_cls_conn *conn); |
90 | void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); |
91 | void (*destroy_conn) (struct iscsi_cls_conn *conn); |
92 | int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, |
93 | char *buf, int buflen); |
94 | int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param, |
95 | char *buf); |
96 | int (*get_conn_param) (struct iscsi_cls_conn *conn, |
97 | enum iscsi_param param, char *buf); |
98 | int (*get_session_param) (struct iscsi_cls_session *session, |
99 | enum iscsi_param param, char *buf); |
100 | int (*get_host_param) (struct Scsi_Host *shost, |
101 | enum iscsi_host_param param, char *buf); |
102 | int (*set_host_param) (struct Scsi_Host *shost, |
103 | enum iscsi_host_param param, char *buf, |
104 | int buflen); |
105 | int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
106 | char *data, uint32_t data_size); |
107 | void (*get_stats) (struct iscsi_cls_conn *conn, |
108 | struct iscsi_stats *stats); |
109 | |
110 | int (*init_task) (struct iscsi_task *task); |
111 | int (*xmit_task) (struct iscsi_task *task); |
112 | void (*cleanup_task) (struct iscsi_task *task); |
113 | |
114 | int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); |
115 | int (*xmit_pdu) (struct iscsi_task *task); |
116 | int (*init_pdu) (struct iscsi_task *task, unsigned int offset, |
117 | unsigned int count); |
118 | void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, |
119 | int *index, int *age); |
120 | |
121 | void (*session_recovery_timedout) (struct iscsi_cls_session *session); |
122 | struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, |
123 | struct sockaddr *dst_addr, |
124 | int non_blocking); |
125 | int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); |
126 | void (*ep_disconnect) (struct iscsi_endpoint *ep); |
127 | int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, |
128 | uint32_t enable, struct sockaddr *dst_addr); |
129 | int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params); |
130 | int (*set_iface_param) (struct Scsi_Host *shost, void *data, |
131 | uint32_t len); |
132 | int (*get_iface_param) (struct iscsi_iface *iface, |
133 | enum iscsi_param_type param_type, |
134 | int param, char *buf); |
135 | umode_t (*attr_is_visible)(int param_type, int param); |
136 | int (*bsg_request)(struct bsg_job *job); |
137 | int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num, |
138 | uint32_t iface_type, uint32_t payload_size, |
139 | uint32_t pid, struct sockaddr *dst_addr); |
140 | int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, |
141 | uint32_t *num_entries, char *buf); |
142 | int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); |
143 | int (*set_chap) (struct Scsi_Host *shost, void *data, int len); |
144 | int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, |
145 | int param, char *buf); |
146 | int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, |
147 | struct iscsi_bus_flash_conn *fnode_conn, |
148 | void *data, int len); |
149 | int (*new_flashnode) (struct Scsi_Host *shost, const char *buf, |
150 | int len); |
151 | int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess); |
152 | int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess, |
153 | struct iscsi_bus_flash_conn *fnode_conn); |
154 | int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, |
155 | struct iscsi_bus_flash_conn *fnode_conn); |
156 | int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); |
157 | int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); |
158 | u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); |
159 | }; |
160 | |
161 | /* |
162 | * transport registration upcalls |
163 | */ |
164 | extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); |
165 | extern void iscsi_unregister_transport(struct iscsi_transport *tt); |
166 | |
167 | /* |
168 | * control plane upcalls |
169 | */ |
170 | extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, |
171 | enum iscsi_err error); |
172 | extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn, |
173 | enum iscsi_conn_state state); |
174 | extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
175 | char *data, uint32_t data_size); |
176 | |
177 | extern int iscsi_offload_mesg(struct Scsi_Host *shost, |
178 | struct iscsi_transport *transport, uint32_t type, |
179 | char *data, uint16_t data_size); |
180 | |
181 | extern void iscsi_post_host_event(uint32_t host_no, |
182 | struct iscsi_transport *transport, |
183 | enum iscsi_host_event_code code, |
184 | uint32_t data_size, |
185 | uint8_t *data); |
186 | |
187 | extern void iscsi_ping_comp_event(uint32_t host_no, |
188 | struct iscsi_transport *transport, |
189 | uint32_t status, uint32_t pid, |
190 | uint32_t data_size, uint8_t *data); |
191 | |
192 | /* iscsi class connection state */ |
193 | enum iscsi_connection_state { |
194 | ISCSI_CONN_UP = 0, |
195 | ISCSI_CONN_DOWN, |
196 | ISCSI_CONN_FAILED, |
197 | ISCSI_CONN_BOUND, |
198 | }; |
199 | |
200 | #define ISCSI_CLS_CONN_BIT_CLEANUP 1 |
201 | |
202 | struct iscsi_cls_conn { |
203 | struct list_head conn_list; /* item in connlist */ |
204 | void *dd_data; /* LLD private data */ |
205 | struct iscsi_transport *transport; |
206 | uint32_t cid; /* connection id */ |
207 | /* |
208 | * This protects the conn startup and binding/unbinding of the ep to |
209 | * the conn. Unbinding includes ep_disconnect and stop_conn. |
210 | */ |
211 | struct mutex ep_mutex; |
212 | struct iscsi_endpoint *ep; |
213 | |
214 | /* Used when accessing flags and queueing work. */ |
215 | spinlock_t lock; |
216 | unsigned long flags; |
217 | struct work_struct cleanup_work; |
218 | |
219 | struct device dev; /* sysfs transport/container device */ |
220 | enum iscsi_connection_state state; |
221 | }; |
222 | |
223 | #define iscsi_dev_to_conn(_dev) \ |
224 | container_of(_dev, struct iscsi_cls_conn, dev) |
225 | |
226 | #define transport_class_to_conn(_cdev) \ |
227 | iscsi_dev_to_conn(_cdev->parent) |
228 | |
229 | #define iscsi_conn_to_session(_conn) \ |
230 | iscsi_dev_to_session(_conn->dev.parent) |
231 | |
232 | /* iscsi class session state */ |
233 | enum { |
234 | ISCSI_SESSION_LOGGED_IN, |
235 | ISCSI_SESSION_FAILED, |
236 | ISCSI_SESSION_FREE, |
237 | }; |
238 | |
239 | enum { |
240 | ISCSI_SESSION_TARGET_UNBOUND, |
241 | ISCSI_SESSION_TARGET_ALLOCATED, |
242 | ISCSI_SESSION_TARGET_SCANNED, |
243 | ISCSI_SESSION_TARGET_UNBINDING, |
244 | ISCSI_SESSION_TARGET_MAX, |
245 | }; |
246 | |
247 | #define ISCSI_MAX_TARGET -1 |
248 | |
249 | struct iscsi_cls_session { |
250 | struct list_head sess_list; /* item in session_list */ |
251 | struct iscsi_transport *transport; |
252 | spinlock_t lock; |
253 | struct work_struct block_work; |
254 | struct work_struct unblock_work; |
255 | struct work_struct scan_work; |
256 | struct work_struct unbind_work; |
257 | struct work_struct destroy_work; |
258 | |
259 | /* recovery fields */ |
260 | int recovery_tmo; |
261 | bool recovery_tmo_sysfs_override; |
262 | struct delayed_work recovery_work; |
263 | |
264 | struct workqueue_struct *workq; |
265 | |
266 | unsigned int target_id; |
267 | bool ida_used; |
268 | |
269 | /* |
270 | * pid of userspace process that created session or -1 if |
271 | * created by the kernel. |
272 | */ |
273 | pid_t creator; |
274 | int state; |
275 | int target_state; /* session target bind state */ |
276 | int sid; /* session id */ |
277 | void *dd_data; /* LLD private data */ |
278 | struct device dev; /* sysfs transport/container device */ |
279 | }; |
280 | |
281 | #define iscsi_dev_to_session(_dev) \ |
282 | container_of(_dev, struct iscsi_cls_session, dev) |
283 | |
284 | #define transport_class_to_session(_cdev) \ |
285 | iscsi_dev_to_session(_cdev->parent) |
286 | |
287 | #define iscsi_session_to_shost(_session) \ |
288 | dev_to_shost(_session->dev.parent) |
289 | |
290 | #define starget_to_session(_stgt) \ |
291 | iscsi_dev_to_session(_stgt->dev.parent) |
292 | |
293 | struct iscsi_cls_host { |
294 | struct mutex mutex; |
295 | struct request_queue *bsg_q; |
296 | uint32_t port_speed; |
297 | uint32_t port_state; |
298 | }; |
299 | |
300 | #define iscsi_job_to_shost(_job) \ |
301 | dev_to_shost(_job->dev) |
302 | |
303 | extern void iscsi_host_for_each_session(struct Scsi_Host *shost, |
304 | void (*fn)(struct iscsi_cls_session *)); |
305 | |
306 | struct iscsi_endpoint { |
307 | void *dd_data; /* LLD private data */ |
308 | struct device dev; |
309 | int id; |
310 | struct iscsi_cls_conn *conn; |
311 | }; |
312 | |
313 | struct iscsi_iface { |
314 | struct device dev; |
315 | struct iscsi_transport *transport; |
316 | uint32_t iface_type; /* IPv4 or IPv6 */ |
317 | uint32_t iface_num; /* iface number, 0 - n */ |
318 | void *dd_data; /* LLD private data */ |
319 | }; |
320 | |
321 | #define iscsi_dev_to_iface(_dev) \ |
322 | container_of(_dev, struct iscsi_iface, dev) |
323 | |
324 | #define iscsi_iface_to_shost(_iface) \ |
325 | dev_to_shost(_iface->dev.parent) |
326 | |
327 | |
328 | struct iscsi_bus_flash_conn { |
329 | struct list_head conn_list; /* item in connlist */ |
330 | void *dd_data; /* LLD private data */ |
331 | struct iscsi_transport *transport; |
332 | struct device dev; /* sysfs transport/container device */ |
333 | /* iscsi connection parameters */ |
334 | uint32_t exp_statsn; |
335 | uint32_t statsn; |
336 | unsigned max_recv_dlength; /* initiator_max_recv_dsl*/ |
337 | unsigned max_xmit_dlength; /* target_max_recv_dsl */ |
338 | unsigned max_segment_size; |
339 | unsigned tcp_xmit_wsf; |
340 | unsigned tcp_recv_wsf; |
341 | int hdrdgst_en; |
342 | int datadgst_en; |
343 | int port; |
344 | char *ipaddress; |
345 | char *link_local_ipv6_addr; |
346 | char *redirect_ipaddr; |
347 | uint16_t keepalive_timeout; |
348 | uint16_t local_port; |
349 | uint8_t snack_req_en; |
350 | /* tcp timestamp negotiation status */ |
351 | uint8_t tcp_timestamp_stat; |
352 | uint8_t tcp_nagle_disable; |
353 | /* tcp window scale factor */ |
354 | uint8_t tcp_wsf_disable; |
355 | uint8_t tcp_timer_scale; |
356 | uint8_t tcp_timestamp_en; |
357 | uint8_t ipv4_tos; |
358 | uint8_t ipv6_traffic_class; |
359 | uint8_t ipv6_flow_label; |
360 | uint8_t fragment_disable; |
361 | /* Link local IPv6 address is assigned by firmware or driver */ |
362 | uint8_t is_fw_assigned_ipv6; |
363 | }; |
364 | |
365 | #define iscsi_dev_to_flash_conn(_dev) \ |
366 | container_of(_dev, struct iscsi_bus_flash_conn, dev) |
367 | |
368 | #define iscsi_flash_conn_to_flash_session(_conn) \ |
369 | iscsi_dev_to_flash_session(_conn->dev.parent) |
370 | |
371 | #define ISID_SIZE 6 |
372 | |
373 | struct iscsi_bus_flash_session { |
374 | struct list_head sess_list; /* item in session_list */ |
375 | struct iscsi_transport *transport; |
376 | unsigned int target_id; |
377 | int flash_state; /* persistent or non-persistent */ |
378 | void *dd_data; /* LLD private data */ |
379 | struct device dev; /* sysfs transport/container device */ |
380 | /* iscsi session parameters */ |
381 | unsigned first_burst; |
382 | unsigned max_burst; |
383 | unsigned short max_r2t; |
384 | int default_taskmgmt_timeout; |
385 | int initial_r2t_en; |
386 | int imm_data_en; |
387 | int time2wait; |
388 | int time2retain; |
389 | int pdu_inorder_en; |
390 | int dataseq_inorder_en; |
391 | int erl; |
392 | int tpgt; |
393 | char *username; |
394 | char *username_in; |
395 | char *password; |
396 | char *password_in; |
397 | char *targetname; |
398 | char *targetalias; |
399 | char *portal_type; |
400 | uint16_t tsid; |
401 | uint16_t chap_in_idx; |
402 | uint16_t chap_out_idx; |
403 | /* index of iSCSI discovery session if the entry is |
404 | * discovered by iSCSI discovery session |
405 | */ |
406 | uint16_t discovery_parent_idx; |
407 | /* indicates if discovery was done through iSNS discovery service |
408 | * or through sendTarget */ |
409 | uint16_t discovery_parent_type; |
410 | /* Firmware auto sendtarget discovery disable */ |
411 | uint8_t auto_snd_tgt_disable; |
412 | uint8_t discovery_sess; |
413 | /* indicates if this flashnode entry is enabled or disabled */ |
414 | uint8_t entry_state; |
415 | uint8_t chap_auth_en; |
416 | /* enables firmware to auto logout the discovery session on discovery |
417 | * completion |
418 | */ |
419 | uint8_t discovery_logout_en; |
420 | uint8_t bidi_chap_en; |
421 | /* makes authentication for discovery session optional */ |
422 | uint8_t discovery_auth_optional; |
423 | uint8_t isid[ISID_SIZE]; |
424 | uint8_t is_boot_target; |
425 | }; |
426 | |
427 | #define iscsi_dev_to_flash_session(_dev) \ |
428 | container_of(_dev, struct iscsi_bus_flash_session, dev) |
429 | |
430 | #define iscsi_flash_session_to_shost(_session) \ |
431 | dev_to_shost(_session->dev.parent) |
432 | |
433 | /* |
434 | * session and connection functions that can be used by HW iSCSI LLDs |
435 | */ |
436 | #define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ |
437 | dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) |
438 | |
439 | #define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ |
440 | dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) |
441 | |
442 | extern int iscsi_session_chkready(struct iscsi_cls_session *session); |
443 | extern int iscsi_is_session_online(struct iscsi_cls_session *session); |
444 | extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, |
445 | struct iscsi_transport *transport, int dd_size); |
446 | extern int iscsi_add_session(struct iscsi_cls_session *session, |
447 | unsigned int target_id); |
448 | extern int iscsi_session_event(struct iscsi_cls_session *session, |
449 | enum iscsi_uevent_e event); |
450 | extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, |
451 | struct iscsi_transport *t, |
452 | int dd_size, |
453 | unsigned int target_id); |
454 | extern void iscsi_force_destroy_session(struct iscsi_cls_session *session); |
455 | extern void iscsi_remove_session(struct iscsi_cls_session *session); |
456 | extern void iscsi_free_session(struct iscsi_cls_session *session); |
457 | extern struct iscsi_cls_conn *iscsi_alloc_conn(struct iscsi_cls_session *sess, |
458 | int dd_size, uint32_t cid); |
459 | extern int iscsi_add_conn(struct iscsi_cls_conn *conn); |
460 | extern void iscsi_remove_conn(struct iscsi_cls_conn *conn); |
461 | extern void iscsi_put_conn(struct iscsi_cls_conn *conn); |
462 | extern void iscsi_get_conn(struct iscsi_cls_conn *conn); |
463 | extern void iscsi_unblock_session(struct iscsi_cls_session *session); |
464 | extern void iscsi_block_session(struct iscsi_cls_session *session); |
465 | extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); |
466 | extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); |
467 | extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); |
468 | extern void iscsi_put_endpoint(struct iscsi_endpoint *ep); |
469 | extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); |
470 | extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, |
471 | struct iscsi_transport *t, |
472 | uint32_t iface_type, |
473 | uint32_t iface_num, int dd_size); |
474 | extern void iscsi_destroy_iface(struct iscsi_iface *iface); |
475 | extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost); |
476 | extern char *iscsi_get_port_state_name(struct Scsi_Host *shost); |
477 | extern int iscsi_is_session_dev(const struct device *dev); |
478 | |
479 | extern char *iscsi_get_discovery_parent_name(int parent_type); |
480 | extern struct device * |
481 | iscsi_find_flashnode(struct Scsi_Host *shost, void *data, |
482 | int (*fn)(struct device *dev, void *data)); |
483 | |
484 | extern struct iscsi_bus_flash_session * |
485 | iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, |
486 | struct iscsi_transport *transport, int dd_size); |
487 | |
488 | extern struct iscsi_bus_flash_conn * |
489 | iscsi_create_flashnode_conn(struct Scsi_Host *shost, |
490 | struct iscsi_bus_flash_session *fnode_sess, |
491 | struct iscsi_transport *transport, int dd_size); |
492 | |
493 | extern void |
494 | iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess); |
495 | |
496 | extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); |
497 | extern int iscsi_flashnode_bus_match(struct device *dev, |
498 | struct device_driver *drv); |
499 | extern struct device * |
500 | iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, |
501 | int (*fn)(struct device *dev, void *data)); |
502 | extern struct device * |
503 | iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); |
504 | |
505 | extern char * |
506 | iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); |
507 | extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); |
508 | #endif |
509 | |