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