1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20#include <linux/configfs.h>
21#include <linux/ctype.h>
22#include <linux/export.h>
23#include <linux/inet.h>
24#include <linux/module.h>
25#include <net/ipv6.h>
26#include <target/target_core_base.h>
27#include <target/target_core_fabric.h>
28#include <target/iscsi/iscsi_transport.h>
29#include <target/iscsi/iscsi_target_core.h>
30#include "iscsi_target_parameters.h"
31#include "iscsi_target_device.h"
32#include "iscsi_target_erl0.h"
33#include "iscsi_target_nodeattrib.h"
34#include "iscsi_target_tpg.h"
35#include "iscsi_target_util.h"
36#include "iscsi_target.h"
37#include <target/iscsi/iscsi_target_stat.h>
38
39
40
41
42static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item)
43{
44 return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np);
45}
46
47static ssize_t lio_target_np_driver_show(struct config_item *item, char *page,
48 enum iscsit_transport_type type)
49{
50 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
51 struct iscsi_tpg_np *tpg_np_new;
52 ssize_t rb;
53
54 tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
55 if (tpg_np_new)
56 rb = sprintf(page, "1\n");
57 else
58 rb = sprintf(page, "0\n");
59
60 return rb;
61}
62
63static ssize_t lio_target_np_driver_store(struct config_item *item,
64 const char *page, size_t count, enum iscsit_transport_type type,
65 const char *mod_name)
66{
67 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
68 struct iscsi_np *np;
69 struct iscsi_portal_group *tpg;
70 struct iscsi_tpg_np *tpg_np_new = NULL;
71 u32 op;
72 int rc;
73
74 rc = kstrtou32(page, 0, &op);
75 if (rc)
76 return rc;
77 if ((op != 1) && (op != 0)) {
78 pr_err("Illegal value for tpg_enable: %u\n", op);
79 return -EINVAL;
80 }
81 np = tpg_np->tpg_np;
82 if (!np) {
83 pr_err("Unable to locate struct iscsi_np from"
84 " struct iscsi_tpg_np\n");
85 return -EINVAL;
86 }
87
88 tpg = tpg_np->tpg;
89 if (iscsit_get_tpg(tpg) < 0)
90 return -EINVAL;
91
92 if (op) {
93 if (strlen(mod_name)) {
94 rc = request_module(mod_name);
95 if (rc != 0) {
96 pr_warn("Unable to request_module for %s\n",
97 mod_name);
98 rc = 0;
99 }
100 }
101
102 tpg_np_new = iscsit_tpg_add_network_portal(tpg,
103 &np->np_sockaddr, tpg_np, type);
104 if (IS_ERR(tpg_np_new)) {
105 rc = PTR_ERR(tpg_np_new);
106 goto out;
107 }
108 } else {
109 tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
110 if (tpg_np_new) {
111 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_new);
112 if (rc < 0)
113 goto out;
114 }
115 }
116
117 iscsit_put_tpg(tpg);
118 return count;
119out:
120 iscsit_put_tpg(tpg);
121 return rc;
122}
123
124static ssize_t lio_target_np_iser_show(struct config_item *item, char *page)
125{
126 return lio_target_np_driver_show(item, page, ISCSI_INFINIBAND);
127}
128
129static ssize_t lio_target_np_iser_store(struct config_item *item,
130 const char *page, size_t count)
131{
132 return lio_target_np_driver_store(item, page, count,
133 ISCSI_INFINIBAND, "ib_isert");
134}
135CONFIGFS_ATTR(lio_target_np_, iser);
136
137static ssize_t lio_target_np_cxgbit_show(struct config_item *item, char *page)
138{
139 return lio_target_np_driver_show(item, page, ISCSI_CXGBIT);
140}
141
142static ssize_t lio_target_np_cxgbit_store(struct config_item *item,
143 const char *page, size_t count)
144{
145 return lio_target_np_driver_store(item, page, count,
146 ISCSI_CXGBIT, "cxgbit");
147}
148CONFIGFS_ATTR(lio_target_np_, cxgbit);
149
150static struct configfs_attribute *lio_target_portal_attrs[] = {
151 &lio_target_np_attr_iser,
152 &lio_target_np_attr_cxgbit,
153 NULL,
154};
155
156
157
158
159
160#define MAX_PORTAL_LEN 256
161
162static struct se_tpg_np *lio_target_call_addnptotpg(
163 struct se_portal_group *se_tpg,
164 struct config_group *group,
165 const char *name)
166{
167 struct iscsi_portal_group *tpg;
168 struct iscsi_tpg_np *tpg_np;
169 char *str, *str2, *ip_str, *port_str;
170 struct sockaddr_storage sockaddr = { };
171 int ret;
172 char buf[MAX_PORTAL_LEN + 1];
173
174 if (strlen(name) > MAX_PORTAL_LEN) {
175 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
176 (int)strlen(name), MAX_PORTAL_LEN);
177 return ERR_PTR(-EOVERFLOW);
178 }
179 memset(buf, 0, MAX_PORTAL_LEN + 1);
180 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
181
182 str = strstr(buf, "[");
183 if (str) {
184 str2 = strstr(str, "]");
185 if (!str2) {
186 pr_err("Unable to locate trailing \"]\""
187 " in IPv6 iSCSI network portal address\n");
188 return ERR_PTR(-EINVAL);
189 }
190
191 ip_str = str + 1;
192 *str2 = '\0';
193 str2++;
194
195 port_str = strstr(str2, ":");
196 if (!port_str) {
197 pr_err("Unable to locate \":port\""
198 " in IPv6 iSCSI network portal address\n");
199 return ERR_PTR(-EINVAL);
200 }
201 *port_str = '\0';
202 port_str++;
203 } else {
204 ip_str = &buf[0];
205 port_str = strstr(ip_str, ":");
206 if (!port_str) {
207 pr_err("Unable to locate \":port\""
208 " in IPv4 iSCSI network portal address\n");
209 return ERR_PTR(-EINVAL);
210 }
211 *port_str = '\0';
212 port_str++;
213 }
214
215 ret = inet_pton_with_scope(&init_net, AF_UNSPEC, ip_str,
216 port_str, &sockaddr);
217 if (ret) {
218 pr_err("malformed ip/port passed: %s\n", name);
219 return ERR_PTR(ret);
220 }
221
222 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
223 ret = iscsit_get_tpg(tpg);
224 if (ret < 0)
225 return ERR_PTR(-EINVAL);
226
227 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
228 " PORTAL: %s\n",
229 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
230 tpg->tpgt, name);
231
232
233
234
235
236
237
238
239
240
241
242
243
244 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL,
245 ISCSI_TCP);
246 if (IS_ERR(tpg_np)) {
247 iscsit_put_tpg(tpg);
248 return ERR_CAST(tpg_np);
249 }
250 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
251
252 iscsit_put_tpg(tpg);
253 return &tpg_np->se_tpg_np;
254}
255
256static void lio_target_call_delnpfromtpg(
257 struct se_tpg_np *se_tpg_np)
258{
259 struct iscsi_portal_group *tpg;
260 struct iscsi_tpg_np *tpg_np;
261 struct se_portal_group *se_tpg;
262 int ret;
263
264 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
265 tpg = tpg_np->tpg;
266 ret = iscsit_get_tpg(tpg);
267 if (ret < 0)
268 return;
269
270 se_tpg = &tpg->tpg_se_tpg;
271 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
272 " PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
273 tpg->tpgt, &tpg_np->tpg_np->np_sockaddr);
274
275 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
276 if (ret < 0)
277 goto out;
278
279 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
280out:
281 iscsit_put_tpg(tpg);
282}
283
284
285
286
287
288#define ISCSI_NACL_ATTR(name) \
289static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\
290 char *page) \
291{ \
292 struct se_node_acl *se_nacl = attrib_to_nacl(item); \
293 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
294 se_node_acl); \
295 \
296 return sprintf(page, "%u\n", nacl->node_attrib.name); \
297} \
298 \
299static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\
300 const char *page, size_t count) \
301{ \
302 struct se_node_acl *se_nacl = attrib_to_nacl(item); \
303 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
304 se_node_acl); \
305 u32 val; \
306 int ret; \
307 \
308 ret = kstrtou32(page, 0, &val); \
309 if (ret) \
310 return ret; \
311 ret = iscsit_na_##name(nacl, val); \
312 if (ret < 0) \
313 return ret; \
314 \
315 return count; \
316} \
317 \
318CONFIGFS_ATTR(iscsi_nacl_attrib_, name)
319
320ISCSI_NACL_ATTR(dataout_timeout);
321ISCSI_NACL_ATTR(dataout_timeout_retries);
322ISCSI_NACL_ATTR(default_erl);
323ISCSI_NACL_ATTR(nopin_timeout);
324ISCSI_NACL_ATTR(nopin_response_timeout);
325ISCSI_NACL_ATTR(random_datain_pdu_offsets);
326ISCSI_NACL_ATTR(random_datain_seq_offsets);
327ISCSI_NACL_ATTR(random_r2t_offsets);
328
329static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
330 &iscsi_nacl_attrib_attr_dataout_timeout,
331 &iscsi_nacl_attrib_attr_dataout_timeout_retries,
332 &iscsi_nacl_attrib_attr_default_erl,
333 &iscsi_nacl_attrib_attr_nopin_timeout,
334 &iscsi_nacl_attrib_attr_nopin_response_timeout,
335 &iscsi_nacl_attrib_attr_random_datain_pdu_offsets,
336 &iscsi_nacl_attrib_attr_random_datain_seq_offsets,
337 &iscsi_nacl_attrib_attr_random_r2t_offsets,
338 NULL,
339};
340
341
342
343
344
345#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
346static ssize_t __iscsi_##prefix##_##name##_show( \
347 struct iscsi_node_acl *nacl, \
348 char *page) \
349{ \
350 struct iscsi_node_auth *auth = &nacl->node_auth; \
351 \
352 if (!capable(CAP_SYS_ADMIN)) \
353 return -EPERM; \
354 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
355} \
356 \
357static ssize_t __iscsi_##prefix##_##name##_store( \
358 struct iscsi_node_acl *nacl, \
359 const char *page, \
360 size_t count) \
361{ \
362 struct iscsi_node_auth *auth = &nacl->node_auth; \
363 \
364 if (!capable(CAP_SYS_ADMIN)) \
365 return -EPERM; \
366 if (count >= sizeof(auth->name)) \
367 return -EINVAL; \
368 snprintf(auth->name, sizeof(auth->name), "%s", page); \
369 if (!strncmp("NULL", auth->name, 4)) \
370 auth->naf_flags &= ~flags; \
371 else \
372 auth->naf_flags |= flags; \
373 \
374 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
375 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
376 auth->authenticate_target = 1; \
377 else \
378 auth->authenticate_target = 0; \
379 \
380 return count; \
381}
382
383#define DEF_NACL_AUTH_STR(name, flags) \
384 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
385static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
386 char *page) \
387{ \
388 struct se_node_acl *nacl = auth_to_nacl(item); \
389 return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
390 struct iscsi_node_acl, se_node_acl), page); \
391} \
392static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \
393 const char *page, size_t count) \
394{ \
395 struct se_node_acl *nacl = auth_to_nacl(item); \
396 return __iscsi_nacl_auth_##name##_store(container_of(nacl, \
397 struct iscsi_node_acl, se_node_acl), page, count); \
398} \
399 \
400CONFIGFS_ATTR(iscsi_nacl_auth_, name)
401
402
403
404
405DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
406DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
407DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
408DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
409
410#define __DEF_NACL_AUTH_INT(prefix, name) \
411static ssize_t __iscsi_##prefix##_##name##_show( \
412 struct iscsi_node_acl *nacl, \
413 char *page) \
414{ \
415 struct iscsi_node_auth *auth = &nacl->node_auth; \
416 \
417 if (!capable(CAP_SYS_ADMIN)) \
418 return -EPERM; \
419 \
420 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
421}
422
423#define DEF_NACL_AUTH_INT(name) \
424 __DEF_NACL_AUTH_INT(nacl_auth, name) \
425static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
426 char *page) \
427{ \
428 struct se_node_acl *nacl = auth_to_nacl(item); \
429 return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
430 struct iscsi_node_acl, se_node_acl), page); \
431} \
432 \
433CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name)
434
435DEF_NACL_AUTH_INT(authenticate_target);
436
437static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
438 &iscsi_nacl_auth_attr_userid,
439 &iscsi_nacl_auth_attr_password,
440 &iscsi_nacl_auth_attr_authenticate_target,
441 &iscsi_nacl_auth_attr_userid_mutual,
442 &iscsi_nacl_auth_attr_password_mutual,
443 NULL,
444};
445
446
447
448
449
450#define ISCSI_NACL_PARAM(name) \
451static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \
452 char *page) \
453{ \
454 struct se_node_acl *se_nacl = param_to_nacl(item); \
455 struct iscsi_session *sess; \
456 struct se_session *se_sess; \
457 ssize_t rb; \
458 \
459 spin_lock_bh(&se_nacl->nacl_sess_lock); \
460 se_sess = se_nacl->nacl_sess; \
461 if (!se_sess) { \
462 rb = snprintf(page, PAGE_SIZE, \
463 "No Active iSCSI Session\n"); \
464 } else { \
465 sess = se_sess->fabric_sess_ptr; \
466 rb = snprintf(page, PAGE_SIZE, "%u\n", \
467 (u32)sess->sess_ops->name); \
468 } \
469 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
470 \
471 return rb; \
472} \
473 \
474CONFIGFS_ATTR_RO(iscsi_nacl_param_, name)
475
476ISCSI_NACL_PARAM(MaxConnections);
477ISCSI_NACL_PARAM(InitialR2T);
478ISCSI_NACL_PARAM(ImmediateData);
479ISCSI_NACL_PARAM(MaxBurstLength);
480ISCSI_NACL_PARAM(FirstBurstLength);
481ISCSI_NACL_PARAM(DefaultTime2Wait);
482ISCSI_NACL_PARAM(DefaultTime2Retain);
483ISCSI_NACL_PARAM(MaxOutstandingR2T);
484ISCSI_NACL_PARAM(DataPDUInOrder);
485ISCSI_NACL_PARAM(DataSequenceInOrder);
486ISCSI_NACL_PARAM(ErrorRecoveryLevel);
487
488static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
489 &iscsi_nacl_param_attr_MaxConnections,
490 &iscsi_nacl_param_attr_InitialR2T,
491 &iscsi_nacl_param_attr_ImmediateData,
492 &iscsi_nacl_param_attr_MaxBurstLength,
493 &iscsi_nacl_param_attr_FirstBurstLength,
494 &iscsi_nacl_param_attr_DefaultTime2Wait,
495 &iscsi_nacl_param_attr_DefaultTime2Retain,
496 &iscsi_nacl_param_attr_MaxOutstandingR2T,
497 &iscsi_nacl_param_attr_DataPDUInOrder,
498 &iscsi_nacl_param_attr_DataSequenceInOrder,
499 &iscsi_nacl_param_attr_ErrorRecoveryLevel,
500 NULL,
501};
502
503
504
505
506
507static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page)
508{
509 struct se_node_acl *se_nacl = acl_to_nacl(item);
510 struct iscsi_session *sess;
511 struct iscsi_conn *conn;
512 struct se_session *se_sess;
513 ssize_t rb = 0;
514 u32 max_cmd_sn;
515
516 spin_lock_bh(&se_nacl->nacl_sess_lock);
517 se_sess = se_nacl->nacl_sess;
518 if (!se_sess) {
519 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
520 " Endpoint: %s\n", se_nacl->initiatorname);
521 } else {
522 sess = se_sess->fabric_sess_ptr;
523
524 rb += sprintf(page+rb, "InitiatorName: %s\n",
525 sess->sess_ops->InitiatorName);
526 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
527 sess->sess_ops->InitiatorAlias);
528
529 rb += sprintf(page+rb,
530 "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ",
531 sess->sid, sess->isid, sess->tsih);
532 rb += sprintf(page+rb, "SessionType: %s\n",
533 (sess->sess_ops->SessionType) ?
534 "Discovery" : "Normal");
535 rb += sprintf(page+rb, "Session State: ");
536 switch (sess->session_state) {
537 case TARG_SESS_STATE_FREE:
538 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
539 break;
540 case TARG_SESS_STATE_ACTIVE:
541 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
542 break;
543 case TARG_SESS_STATE_LOGGED_IN:
544 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
545 break;
546 case TARG_SESS_STATE_FAILED:
547 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
548 break;
549 case TARG_SESS_STATE_IN_CONTINUE:
550 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
551 break;
552 default:
553 rb += sprintf(page+rb, "ERROR: Unknown Session"
554 " State!\n");
555 break;
556 }
557
558 rb += sprintf(page+rb, "---------------------[iSCSI Session"
559 " Values]-----------------------\n");
560 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
561 " : MaxCmdSN : ITT : TTT\n");
562 max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn);
563 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
564 " 0x%08x 0x%08x\n",
565 sess->cmdsn_window,
566 (max_cmd_sn - sess->exp_cmd_sn) + 1,
567 sess->exp_cmd_sn, max_cmd_sn,
568 sess->init_task_tag, sess->targ_xfer_tag);
569 rb += sprintf(page+rb, "----------------------[iSCSI"
570 " Connections]-------------------------\n");
571
572 spin_lock(&sess->conn_lock);
573 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
574 rb += sprintf(page+rb, "CID: %hu Connection"
575 " State: ", conn->cid);
576 switch (conn->conn_state) {
577 case TARG_CONN_STATE_FREE:
578 rb += sprintf(page+rb,
579 "TARG_CONN_STATE_FREE\n");
580 break;
581 case TARG_CONN_STATE_XPT_UP:
582 rb += sprintf(page+rb,
583 "TARG_CONN_STATE_XPT_UP\n");
584 break;
585 case TARG_CONN_STATE_IN_LOGIN:
586 rb += sprintf(page+rb,
587 "TARG_CONN_STATE_IN_LOGIN\n");
588 break;
589 case TARG_CONN_STATE_LOGGED_IN:
590 rb += sprintf(page+rb,
591 "TARG_CONN_STATE_LOGGED_IN\n");
592 break;
593 case TARG_CONN_STATE_IN_LOGOUT:
594 rb += sprintf(page+rb,
595 "TARG_CONN_STATE_IN_LOGOUT\n");
596 break;
597 case TARG_CONN_STATE_LOGOUT_REQUESTED:
598 rb += sprintf(page+rb,
599 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
600 break;
601 case TARG_CONN_STATE_CLEANUP_WAIT:
602 rb += sprintf(page+rb,
603 "TARG_CONN_STATE_CLEANUP_WAIT\n");
604 break;
605 default:
606 rb += sprintf(page+rb,
607 "ERROR: Unknown Connection State!\n");
608 break;
609 }
610
611 rb += sprintf(page+rb, " Address %pISc %s", &conn->login_sockaddr,
612 (conn->network_transport == ISCSI_TCP) ?
613 "TCP" : "SCTP");
614 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
615 conn->stat_sn);
616 }
617 spin_unlock(&sess->conn_lock);
618 }
619 spin_unlock_bh(&se_nacl->nacl_sess_lock);
620
621 return rb;
622}
623
624static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item,
625 char *page)
626{
627 return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth);
628}
629
630static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item,
631 const char *page, size_t count)
632{
633 struct se_node_acl *se_nacl = acl_to_nacl(item);
634 struct se_portal_group *se_tpg = se_nacl->se_tpg;
635 struct iscsi_portal_group *tpg = container_of(se_tpg,
636 struct iscsi_portal_group, tpg_se_tpg);
637 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
638 u32 cmdsn_depth = 0;
639 int ret;
640
641 ret = kstrtou32(page, 0, &cmdsn_depth);
642 if (ret)
643 return ret;
644 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
645 pr_err("Passed cmdsn_depth: %u exceeds"
646 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
647 TA_DEFAULT_CMDSN_DEPTH_MAX);
648 return -EINVAL;
649 }
650 acl_ci = &se_nacl->acl_group.cg_item;
651 if (!acl_ci) {
652 pr_err("Unable to locatel acl_ci\n");
653 return -EINVAL;
654 }
655 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
656 if (!tpg_ci) {
657 pr_err("Unable to locate tpg_ci\n");
658 return -EINVAL;
659 }
660 wwn_ci = &tpg_ci->ci_group->cg_item;
661 if (!wwn_ci) {
662 pr_err("Unable to locate config_item wwn_ci\n");
663 return -EINVAL;
664 }
665
666 if (iscsit_get_tpg(tpg) < 0)
667 return -EINVAL;
668
669 ret = core_tpg_set_initiator_node_queue_depth(se_nacl, cmdsn_depth);
670
671 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
672 "InitiatorName: %s\n", config_item_name(wwn_ci),
673 config_item_name(tpg_ci), cmdsn_depth,
674 config_item_name(acl_ci));
675
676 iscsit_put_tpg(tpg);
677 return (!ret) ? count : (ssize_t)ret;
678}
679
680static ssize_t lio_target_nacl_tag_show(struct config_item *item, char *page)
681{
682 return snprintf(page, PAGE_SIZE, "%s", acl_to_nacl(item)->acl_tag);
683}
684
685static ssize_t lio_target_nacl_tag_store(struct config_item *item,
686 const char *page, size_t count)
687{
688 struct se_node_acl *se_nacl = acl_to_nacl(item);
689 int ret;
690
691 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
692
693 if (ret < 0)
694 return ret;
695 return count;
696}
697
698CONFIGFS_ATTR_RO(lio_target_nacl_, info);
699CONFIGFS_ATTR(lio_target_nacl_, cmdsn_depth);
700CONFIGFS_ATTR(lio_target_nacl_, tag);
701
702static struct configfs_attribute *lio_target_initiator_attrs[] = {
703 &lio_target_nacl_attr_info,
704 &lio_target_nacl_attr_cmdsn_depth,
705 &lio_target_nacl_attr_tag,
706 NULL,
707};
708
709static int lio_target_init_nodeacl(struct se_node_acl *se_nacl,
710 const char *name)
711{
712 struct iscsi_node_acl *acl =
713 container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
714
715 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
716 "iscsi_sess_stats", &iscsi_stat_sess_cit);
717 configfs_add_default_group(&acl->node_stat_grps.iscsi_sess_stats_group,
718 &se_nacl->acl_fabric_stat_group);
719 return 0;
720}
721
722
723
724
725
726#define DEF_TPG_ATTRIB(name) \
727 \
728static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \
729 char *page) \
730{ \
731 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
732 struct iscsi_portal_group *tpg = container_of(se_tpg, \
733 struct iscsi_portal_group, tpg_se_tpg); \
734 ssize_t rb; \
735 \
736 if (iscsit_get_tpg(tpg) < 0) \
737 return -EINVAL; \
738 \
739 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
740 iscsit_put_tpg(tpg); \
741 return rb; \
742} \
743 \
744static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\
745 const char *page, size_t count) \
746{ \
747 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
748 struct iscsi_portal_group *tpg = container_of(se_tpg, \
749 struct iscsi_portal_group, tpg_se_tpg); \
750 u32 val; \
751 int ret; \
752 \
753 if (iscsit_get_tpg(tpg) < 0) \
754 return -EINVAL; \
755 \
756 ret = kstrtou32(page, 0, &val); \
757 if (ret) \
758 goto out; \
759 ret = iscsit_ta_##name(tpg, val); \
760 if (ret < 0) \
761 goto out; \
762 \
763 iscsit_put_tpg(tpg); \
764 return count; \
765out: \
766 iscsit_put_tpg(tpg); \
767 return ret; \
768} \
769CONFIGFS_ATTR(iscsi_tpg_attrib_, name)
770
771DEF_TPG_ATTRIB(authentication);
772DEF_TPG_ATTRIB(login_timeout);
773DEF_TPG_ATTRIB(netif_timeout);
774DEF_TPG_ATTRIB(generate_node_acls);
775DEF_TPG_ATTRIB(default_cmdsn_depth);
776DEF_TPG_ATTRIB(cache_dynamic_acls);
777DEF_TPG_ATTRIB(demo_mode_write_protect);
778DEF_TPG_ATTRIB(prod_mode_write_protect);
779DEF_TPG_ATTRIB(demo_mode_discovery);
780DEF_TPG_ATTRIB(default_erl);
781DEF_TPG_ATTRIB(t10_pi);
782DEF_TPG_ATTRIB(fabric_prot_type);
783DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
784DEF_TPG_ATTRIB(login_keys_workaround);
785
786static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
787 &iscsi_tpg_attrib_attr_authentication,
788 &iscsi_tpg_attrib_attr_login_timeout,
789 &iscsi_tpg_attrib_attr_netif_timeout,
790 &iscsi_tpg_attrib_attr_generate_node_acls,
791 &iscsi_tpg_attrib_attr_default_cmdsn_depth,
792 &iscsi_tpg_attrib_attr_cache_dynamic_acls,
793 &iscsi_tpg_attrib_attr_demo_mode_write_protect,
794 &iscsi_tpg_attrib_attr_prod_mode_write_protect,
795 &iscsi_tpg_attrib_attr_demo_mode_discovery,
796 &iscsi_tpg_attrib_attr_default_erl,
797 &iscsi_tpg_attrib_attr_t10_pi,
798 &iscsi_tpg_attrib_attr_fabric_prot_type,
799 &iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
800 &iscsi_tpg_attrib_attr_login_keys_workaround,
801 NULL,
802};
803
804
805
806
807
808#define __DEF_TPG_AUTH_STR(prefix, name, flags) \
809static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
810 char *page) \
811{ \
812 struct iscsi_portal_group *tpg = container_of(se_tpg, \
813 struct iscsi_portal_group, tpg_se_tpg); \
814 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
815 \
816 if (!capable(CAP_SYS_ADMIN)) \
817 return -EPERM; \
818 \
819 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
820} \
821 \
822static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\
823 const char *page, size_t count) \
824{ \
825 struct iscsi_portal_group *tpg = container_of(se_tpg, \
826 struct iscsi_portal_group, tpg_se_tpg); \
827 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
828 \
829 if (!capable(CAP_SYS_ADMIN)) \
830 return -EPERM; \
831 \
832 snprintf(auth->name, sizeof(auth->name), "%s", page); \
833 if (!(strncmp("NULL", auth->name, 4))) \
834 auth->naf_flags &= ~flags; \
835 else \
836 auth->naf_flags |= flags; \
837 \
838 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
839 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
840 auth->authenticate_target = 1; \
841 else \
842 auth->authenticate_target = 0; \
843 \
844 return count; \
845}
846
847#define DEF_TPG_AUTH_STR(name, flags) \
848 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
849static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
850 char *page) \
851{ \
852 return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
853} \
854 \
855static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \
856 const char *page, size_t count) \
857{ \
858 return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \
859} \
860 \
861CONFIGFS_ATTR(iscsi_tpg_auth_, name);
862
863
864DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
865DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
866DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
867DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
868
869#define __DEF_TPG_AUTH_INT(prefix, name) \
870static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
871 char *page) \
872{ \
873 struct iscsi_portal_group *tpg = container_of(se_tpg, \
874 struct iscsi_portal_group, tpg_se_tpg); \
875 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
876 \
877 if (!capable(CAP_SYS_ADMIN)) \
878 return -EPERM; \
879 \
880 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
881}
882
883#define DEF_TPG_AUTH_INT(name) \
884 __DEF_TPG_AUTH_INT(tpg_auth, name) \
885static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
886 char *page) \
887{ \
888 return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
889} \
890CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name);
891
892DEF_TPG_AUTH_INT(authenticate_target);
893
894static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
895 &iscsi_tpg_auth_attr_userid,
896 &iscsi_tpg_auth_attr_password,
897 &iscsi_tpg_auth_attr_authenticate_target,
898 &iscsi_tpg_auth_attr_userid_mutual,
899 &iscsi_tpg_auth_attr_password_mutual,
900 NULL,
901};
902
903
904
905
906
907#define DEF_TPG_PARAM(name) \
908static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \
909 char *page) \
910{ \
911 struct se_portal_group *se_tpg = param_to_tpg(item); \
912 struct iscsi_portal_group *tpg = container_of(se_tpg, \
913 struct iscsi_portal_group, tpg_se_tpg); \
914 struct iscsi_param *param; \
915 ssize_t rb; \
916 \
917 if (iscsit_get_tpg(tpg) < 0) \
918 return -EINVAL; \
919 \
920 param = iscsi_find_param_from_key(__stringify(name), \
921 tpg->param_list); \
922 if (!param) { \
923 iscsit_put_tpg(tpg); \
924 return -EINVAL; \
925 } \
926 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
927 \
928 iscsit_put_tpg(tpg); \
929 return rb; \
930} \
931static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \
932 const char *page, size_t count) \
933{ \
934 struct se_portal_group *se_tpg = param_to_tpg(item); \
935 struct iscsi_portal_group *tpg = container_of(se_tpg, \
936 struct iscsi_portal_group, tpg_se_tpg); \
937 char *buf; \
938 int ret, len; \
939 \
940 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
941 if (!buf) \
942 return -ENOMEM; \
943 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
944 if (isspace(buf[len-1])) \
945 buf[len-1] = '\0'; \
946 \
947 if (iscsit_get_tpg(tpg) < 0) { \
948 kfree(buf); \
949 return -EINVAL; \
950 } \
951 \
952 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
953 if (ret < 0) \
954 goto out; \
955 \
956 kfree(buf); \
957 iscsit_put_tpg(tpg); \
958 return count; \
959out: \
960 kfree(buf); \
961 iscsit_put_tpg(tpg); \
962 return -EINVAL; \
963} \
964CONFIGFS_ATTR(iscsi_tpg_param_, name)
965
966DEF_TPG_PARAM(AuthMethod);
967DEF_TPG_PARAM(HeaderDigest);
968DEF_TPG_PARAM(DataDigest);
969DEF_TPG_PARAM(MaxConnections);
970DEF_TPG_PARAM(TargetAlias);
971DEF_TPG_PARAM(InitialR2T);
972DEF_TPG_PARAM(ImmediateData);
973DEF_TPG_PARAM(MaxRecvDataSegmentLength);
974DEF_TPG_PARAM(MaxXmitDataSegmentLength);
975DEF_TPG_PARAM(MaxBurstLength);
976DEF_TPG_PARAM(FirstBurstLength);
977DEF_TPG_PARAM(DefaultTime2Wait);
978DEF_TPG_PARAM(DefaultTime2Retain);
979DEF_TPG_PARAM(MaxOutstandingR2T);
980DEF_TPG_PARAM(DataPDUInOrder);
981DEF_TPG_PARAM(DataSequenceInOrder);
982DEF_TPG_PARAM(ErrorRecoveryLevel);
983DEF_TPG_PARAM(IFMarker);
984DEF_TPG_PARAM(OFMarker);
985DEF_TPG_PARAM(IFMarkInt);
986DEF_TPG_PARAM(OFMarkInt);
987
988static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
989 &iscsi_tpg_param_attr_AuthMethod,
990 &iscsi_tpg_param_attr_HeaderDigest,
991 &iscsi_tpg_param_attr_DataDigest,
992 &iscsi_tpg_param_attr_MaxConnections,
993 &iscsi_tpg_param_attr_TargetAlias,
994 &iscsi_tpg_param_attr_InitialR2T,
995 &iscsi_tpg_param_attr_ImmediateData,
996 &iscsi_tpg_param_attr_MaxRecvDataSegmentLength,
997 &iscsi_tpg_param_attr_MaxXmitDataSegmentLength,
998 &iscsi_tpg_param_attr_MaxBurstLength,
999 &iscsi_tpg_param_attr_FirstBurstLength,
1000 &iscsi_tpg_param_attr_DefaultTime2Wait,
1001 &iscsi_tpg_param_attr_DefaultTime2Retain,
1002 &iscsi_tpg_param_attr_MaxOutstandingR2T,
1003 &iscsi_tpg_param_attr_DataPDUInOrder,
1004 &iscsi_tpg_param_attr_DataSequenceInOrder,
1005 &iscsi_tpg_param_attr_ErrorRecoveryLevel,
1006 &iscsi_tpg_param_attr_IFMarker,
1007 &iscsi_tpg_param_attr_OFMarker,
1008 &iscsi_tpg_param_attr_IFMarkInt,
1009 &iscsi_tpg_param_attr_OFMarkInt,
1010 NULL,
1011};
1012
1013
1014
1015
1016
1017static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page)
1018{
1019 struct se_portal_group *se_tpg = to_tpg(item);
1020 struct iscsi_portal_group *tpg = container_of(se_tpg,
1021 struct iscsi_portal_group, tpg_se_tpg);
1022 ssize_t len;
1023
1024 spin_lock(&tpg->tpg_state_lock);
1025 len = sprintf(page, "%d\n",
1026 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1027 spin_unlock(&tpg->tpg_state_lock);
1028
1029 return len;
1030}
1031
1032static ssize_t lio_target_tpg_enable_store(struct config_item *item,
1033 const char *page, size_t count)
1034{
1035 struct se_portal_group *se_tpg = to_tpg(item);
1036 struct iscsi_portal_group *tpg = container_of(se_tpg,
1037 struct iscsi_portal_group, tpg_se_tpg);
1038 u32 op;
1039 int ret;
1040
1041 ret = kstrtou32(page, 0, &op);
1042 if (ret)
1043 return ret;
1044 if ((op != 1) && (op != 0)) {
1045 pr_err("Illegal value for tpg_enable: %u\n", op);
1046 return -EINVAL;
1047 }
1048
1049 ret = iscsit_get_tpg(tpg);
1050 if (ret < 0)
1051 return -EINVAL;
1052
1053 if (op) {
1054 ret = iscsit_tpg_enable_portal_group(tpg);
1055 if (ret < 0)
1056 goto out;
1057 } else {
1058
1059
1060
1061 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1062 if (ret < 0)
1063 goto out;
1064 }
1065
1066 iscsit_put_tpg(tpg);
1067 return count;
1068out:
1069 iscsit_put_tpg(tpg);
1070 return -EINVAL;
1071}
1072
1073
1074static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item,
1075 char *page)
1076{
1077 return target_show_dynamic_sessions(to_tpg(item), page);
1078}
1079
1080CONFIGFS_ATTR(lio_target_tpg_, enable);
1081CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions);
1082
1083static struct configfs_attribute *lio_target_tpg_attrs[] = {
1084 &lio_target_tpg_attr_enable,
1085 &lio_target_tpg_attr_dynamic_sessions,
1086 NULL,
1087};
1088
1089
1090
1091
1092
1093static struct se_portal_group *lio_target_tiqn_addtpg(
1094 struct se_wwn *wwn,
1095 struct config_group *group,
1096 const char *name)
1097{
1098 struct iscsi_portal_group *tpg;
1099 struct iscsi_tiqn *tiqn;
1100 char *tpgt_str;
1101 int ret;
1102 u16 tpgt;
1103
1104 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1105
1106
1107
1108
1109 tpgt_str = strstr(name, "tpgt_");
1110 if (!tpgt_str) {
1111 pr_err("Unable to locate \"tpgt_#\" directory"
1112 " group\n");
1113 return NULL;
1114 }
1115 tpgt_str += 5;
1116 ret = kstrtou16(tpgt_str, 0, &tpgt);
1117 if (ret)
1118 return NULL;
1119
1120 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1121 if (!tpg)
1122 return NULL;
1123
1124 ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
1125 if (ret < 0)
1126 return NULL;
1127
1128 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1129 if (ret != 0)
1130 goto out;
1131
1132 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1133 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1134 name);
1135 return &tpg->tpg_se_tpg;
1136out:
1137 core_tpg_deregister(&tpg->tpg_se_tpg);
1138 kfree(tpg);
1139 return NULL;
1140}
1141
1142static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1143{
1144 struct iscsi_portal_group *tpg;
1145 struct iscsi_tiqn *tiqn;
1146
1147 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1148 tiqn = tpg->tpg_tiqn;
1149
1150
1151
1152 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1153 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1154}
1155
1156
1157
1158
1159
1160static ssize_t lio_target_wwn_lio_version_show(struct config_item *item,
1161 char *page)
1162{
1163 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
1164}
1165
1166CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version);
1167
1168static struct configfs_attribute *lio_target_wwn_attrs[] = {
1169 &lio_target_wwn_attr_lio_version,
1170 NULL,
1171};
1172
1173static struct se_wwn *lio_target_call_coreaddtiqn(
1174 struct target_fabric_configfs *tf,
1175 struct config_group *group,
1176 const char *name)
1177{
1178 struct iscsi_tiqn *tiqn;
1179
1180 tiqn = iscsit_add_tiqn((unsigned char *)name);
1181 if (IS_ERR(tiqn))
1182 return ERR_CAST(tiqn);
1183
1184 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1185 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1186 " %s\n", name);
1187 return &tiqn->tiqn_wwn;
1188}
1189
1190static void lio_target_add_wwn_groups(struct se_wwn *wwn)
1191{
1192 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1193
1194 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
1195 "iscsi_instance", &iscsi_stat_instance_cit);
1196 configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_instance_group,
1197 &tiqn->tiqn_wwn.fabric_stat_group);
1198
1199 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
1200 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1201 configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
1202 &tiqn->tiqn_wwn.fabric_stat_group);
1203
1204 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
1205 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1206 configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
1207 &tiqn->tiqn_wwn.fabric_stat_group);
1208
1209 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
1210 "iscsi_login_stats", &iscsi_stat_login_cit);
1211 configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
1212 &tiqn->tiqn_wwn.fabric_stat_group);
1213
1214 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
1215 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1216 configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
1217 &tiqn->tiqn_wwn.fabric_stat_group);
1218}
1219
1220static void lio_target_call_coredeltiqn(
1221 struct se_wwn *wwn)
1222{
1223 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1224
1225 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1226 tiqn->tiqn);
1227 iscsit_del_tiqn(tiqn);
1228}
1229
1230
1231
1232
1233
1234#define DEF_DISC_AUTH_STR(name, flags) \
1235 __DEF_NACL_AUTH_STR(disc, name, flags) \
1236static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
1237{ \
1238 return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\
1239 page); \
1240} \
1241static ssize_t iscsi_disc_##name##_store(struct config_item *item, \
1242 const char *page, size_t count) \
1243{ \
1244 return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \
1245 page, count); \
1246 \
1247} \
1248CONFIGFS_ATTR(iscsi_disc_, name)
1249
1250DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1251DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1252DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1253DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1254
1255#define DEF_DISC_AUTH_INT(name) \
1256 __DEF_NACL_AUTH_INT(disc, name) \
1257static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
1258{ \
1259 return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \
1260 page); \
1261} \
1262CONFIGFS_ATTR_RO(iscsi_disc_, name)
1263
1264DEF_DISC_AUTH_INT(authenticate_target);
1265
1266
1267static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item,
1268 char *page)
1269{
1270 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1271
1272 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1273}
1274
1275static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item,
1276 const char *page, size_t count)
1277{
1278 struct iscsi_param *param;
1279 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1280 u32 op;
1281 int err;
1282
1283 err = kstrtou32(page, 0, &op);
1284 if (err)
1285 return -EINVAL;
1286 if ((op != 1) && (op != 0)) {
1287 pr_err("Illegal value for enforce_discovery_auth:"
1288 " %u\n", op);
1289 return -EINVAL;
1290 }
1291
1292 if (!discovery_tpg) {
1293 pr_err("iscsit_global->discovery_tpg is NULL\n");
1294 return -EINVAL;
1295 }
1296
1297 param = iscsi_find_param_from_key(AUTHMETHOD,
1298 discovery_tpg->param_list);
1299 if (!param)
1300 return -EINVAL;
1301
1302 if (op) {
1303
1304
1305
1306 if (iscsi_update_param_value(param, CHAP) < 0)
1307 return -EINVAL;
1308
1309 discovery_tpg->tpg_attrib.authentication = 1;
1310 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1311 pr_debug("LIO-CORE[0] Successfully enabled"
1312 " authentication enforcement for iSCSI"
1313 " Discovery TPG\n");
1314 } else {
1315
1316
1317
1318 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1319 return -EINVAL;
1320
1321 discovery_tpg->tpg_attrib.authentication = 0;
1322 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1323 pr_debug("LIO-CORE[0] Successfully disabled"
1324 " authentication enforcement for iSCSI"
1325 " Discovery TPG\n");
1326 }
1327
1328 return count;
1329}
1330
1331CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth);
1332
1333static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1334 &iscsi_disc_attr_userid,
1335 &iscsi_disc_attr_password,
1336 &iscsi_disc_attr_authenticate_target,
1337 &iscsi_disc_attr_userid_mutual,
1338 &iscsi_disc_attr_password_mutual,
1339 &iscsi_disc_attr_enforce_discovery_auth,
1340 NULL,
1341};
1342
1343
1344
1345
1346
1347static char *iscsi_get_fabric_name(void)
1348{
1349 return "iSCSI";
1350}
1351
1352static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1353{
1354 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1355
1356 return cmd->i_state;
1357}
1358
1359static u32 lio_sess_get_index(struct se_session *se_sess)
1360{
1361 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1362
1363 return sess->session_index;
1364}
1365
1366static u32 lio_sess_get_initiator_sid(
1367 struct se_session *se_sess,
1368 unsigned char *buf,
1369 u32 size)
1370{
1371 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1372
1373
1374
1375 return snprintf(buf, size, "%6phN", sess->isid);
1376}
1377
1378static int lio_queue_data_in(struct se_cmd *se_cmd)
1379{
1380 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1381 struct iscsi_conn *conn = cmd->conn;
1382
1383 cmd->i_state = ISTATE_SEND_DATAIN;
1384 return conn->conn_transport->iscsit_queue_data_in(conn, cmd);
1385}
1386
1387static int lio_write_pending(struct se_cmd *se_cmd)
1388{
1389 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1390 struct iscsi_conn *conn = cmd->conn;
1391
1392 if (!cmd->immediate_data && !cmd->unsolicited_data)
1393 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
1394
1395 return 0;
1396}
1397
1398static int lio_write_pending_status(struct se_cmd *se_cmd)
1399{
1400 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1401 int ret;
1402
1403 spin_lock_bh(&cmd->istate_lock);
1404 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1405 spin_unlock_bh(&cmd->istate_lock);
1406
1407 return ret;
1408}
1409
1410static int lio_queue_status(struct se_cmd *se_cmd)
1411{
1412 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1413 struct iscsi_conn *conn = cmd->conn;
1414
1415 cmd->i_state = ISTATE_SEND_STATUS;
1416
1417 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1418 return iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
1419 }
1420 return conn->conn_transport->iscsit_queue_status(conn, cmd);
1421}
1422
1423static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
1424{
1425 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1426
1427 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1428 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1429}
1430
1431static void lio_aborted_task(struct se_cmd *se_cmd)
1432{
1433 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1434
1435 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
1436}
1437
1438static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
1439{
1440 return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1441}
1442
1443static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1444{
1445 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
1446}
1447
1448static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1449{
1450 return iscsi_tpg(se_tpg)->tpgt;
1451}
1452
1453static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1454{
1455 return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
1456}
1457
1458static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1459{
1460 return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
1461}
1462
1463static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1464{
1465 return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
1466}
1467
1468static int lio_tpg_check_demo_mode_write_protect(
1469 struct se_portal_group *se_tpg)
1470{
1471 return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
1472}
1473
1474static int lio_tpg_check_prod_mode_write_protect(
1475 struct se_portal_group *se_tpg)
1476{
1477 return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
1478}
1479
1480static int lio_tpg_check_prot_fabric_only(
1481 struct se_portal_group *se_tpg)
1482{
1483
1484
1485
1486
1487 if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
1488 return 0;
1489 return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
1490}
1491
1492
1493
1494
1495
1496static void lio_tpg_close_session(struct se_session *se_sess)
1497{
1498 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1499 struct se_portal_group *se_tpg = &sess->tpg->tpg_se_tpg;
1500
1501 spin_lock_bh(&se_tpg->session_lock);
1502 spin_lock(&sess->conn_lock);
1503 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1504 atomic_read(&sess->session_logout) ||
1505 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1506 spin_unlock(&sess->conn_lock);
1507 spin_unlock_bh(&se_tpg->session_lock);
1508 return;
1509 }
1510 atomic_set(&sess->session_reinstatement, 1);
1511 atomic_set(&sess->session_fall_back_to_erl0, 1);
1512 spin_unlock(&sess->conn_lock);
1513
1514 iscsit_stop_time2retain_timer(sess);
1515 spin_unlock_bh(&se_tpg->session_lock);
1516
1517 iscsit_stop_session(sess, 1, 1);
1518 iscsit_close_session(sess);
1519}
1520
1521static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1522{
1523 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index;
1524}
1525
1526static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1527{
1528 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1529 se_node_acl);
1530 struct se_portal_group *se_tpg = se_acl->se_tpg;
1531 struct iscsi_portal_group *tpg = container_of(se_tpg,
1532 struct iscsi_portal_group, tpg_se_tpg);
1533
1534 acl->node_attrib.nacl = acl;
1535 iscsit_set_default_node_attribues(acl, tpg);
1536}
1537
1538static int lio_check_stop_free(struct se_cmd *se_cmd)
1539{
1540 return target_put_sess_cmd(se_cmd);
1541}
1542
1543static void lio_release_cmd(struct se_cmd *se_cmd)
1544{
1545 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1546
1547 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1548 iscsit_release_cmd(cmd);
1549}
1550
1551const struct target_core_fabric_ops iscsi_ops = {
1552 .module = THIS_MODULE,
1553 .name = "iscsi",
1554 .node_acl_size = sizeof(struct iscsi_node_acl),
1555 .get_fabric_name = iscsi_get_fabric_name,
1556 .tpg_get_wwn = lio_tpg_get_endpoint_wwn,
1557 .tpg_get_tag = lio_tpg_get_tag,
1558 .tpg_get_default_depth = lio_tpg_get_default_depth,
1559 .tpg_check_demo_mode = lio_tpg_check_demo_mode,
1560 .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
1561 .tpg_check_demo_mode_write_protect =
1562 lio_tpg_check_demo_mode_write_protect,
1563 .tpg_check_prod_mode_write_protect =
1564 lio_tpg_check_prod_mode_write_protect,
1565 .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only,
1566 .tpg_get_inst_index = lio_tpg_get_inst_index,
1567 .check_stop_free = lio_check_stop_free,
1568 .release_cmd = lio_release_cmd,
1569 .close_session = lio_tpg_close_session,
1570 .sess_get_index = lio_sess_get_index,
1571 .sess_get_initiator_sid = lio_sess_get_initiator_sid,
1572 .write_pending = lio_write_pending,
1573 .write_pending_status = lio_write_pending_status,
1574 .set_default_node_attributes = lio_set_default_node_attributes,
1575 .get_cmd_state = iscsi_get_cmd_state,
1576 .queue_data_in = lio_queue_data_in,
1577 .queue_status = lio_queue_status,
1578 .queue_tm_rsp = lio_queue_tm_rsp,
1579 .aborted_task = lio_aborted_task,
1580 .fabric_make_wwn = lio_target_call_coreaddtiqn,
1581 .fabric_drop_wwn = lio_target_call_coredeltiqn,
1582 .add_wwn_groups = lio_target_add_wwn_groups,
1583 .fabric_make_tpg = lio_target_tiqn_addtpg,
1584 .fabric_drop_tpg = lio_target_tiqn_deltpg,
1585 .fabric_make_np = lio_target_call_addnptotpg,
1586 .fabric_drop_np = lio_target_call_delnpfromtpg,
1587 .fabric_init_nodeacl = lio_target_init_nodeacl,
1588
1589 .tfc_discovery_attrs = lio_target_discovery_auth_attrs,
1590 .tfc_wwn_attrs = lio_target_wwn_attrs,
1591 .tfc_tpg_base_attrs = lio_target_tpg_attrs,
1592 .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs,
1593 .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs,
1594 .tfc_tpg_param_attrs = lio_target_tpg_param_attrs,
1595 .tfc_tpg_np_base_attrs = lio_target_portal_attrs,
1596 .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs,
1597 .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs,
1598 .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs,
1599 .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs,
1600};
1601
