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1 | /******************************************************************************* |
2 | * This file contains the configfs implementation for iSCSI Target mode | |
3 | * from the LIO-Target Project. | |
4 | * | |
5 | * \u00a9 Copyright 2007-2011 RisingTide Systems LLC. | |
6 | * | |
7 | * Licensed to the Linux Foundation under the General Public License (GPL) version 2. | |
8 | * | |
9 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | ****************************************************************************/ | |
21 | ||
22 | #include <linux/configfs.h> | |
23 | #include <target/target_core_base.h> | |
24 | #include <target/target_core_transport.h> | |
25 | #include <target/target_core_fabric_ops.h> | |
26 | #include <target/target_core_fabric_configfs.h> | |
27 | #include <target/target_core_fabric_lib.h> | |
28 | #include <target/target_core_device.h> | |
29 | #include <target/target_core_tpg.h> | |
30 | #include <target/target_core_configfs.h> | |
31 | #include <target/configfs_macros.h> | |
32 | ||
33 | #include "iscsi_target_core.h" | |
34 | #include "iscsi_target_parameters.h" | |
35 | #include "iscsi_target_device.h" | |
36 | #include "iscsi_target_erl0.h" | |
37 | #include "iscsi_target_nodeattrib.h" | |
38 | #include "iscsi_target_tpg.h" | |
39 | #include "iscsi_target_util.h" | |
40 | #include "iscsi_target.h" | |
41 | #include "iscsi_target_stat.h" | |
42 | #include "iscsi_target_configfs.h" | |
43 | ||
44 | struct target_fabric_configfs *lio_target_fabric_configfs; | |
45 | ||
46 | struct lio_target_configfs_attribute { | |
47 | struct configfs_attribute attr; | |
48 | ssize_t (*show)(void *, char *); | |
49 | ssize_t (*store)(void *, const char *, size_t); | |
50 | }; | |
51 | ||
52 | struct iscsi_portal_group *lio_get_tpg_from_tpg_item( | |
53 | struct config_item *item, | |
54 | struct iscsi_tiqn **tiqn_out) | |
55 | { | |
56 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
57 | struct se_portal_group, tpg_group); | |
58 | struct iscsi_portal_group *tpg = | |
59 | (struct iscsi_portal_group *)se_tpg->se_tpg_fabric_ptr; | |
60 | int ret; | |
61 | ||
62 | if (!tpg) { | |
63 | pr_err("Unable to locate struct iscsi_portal_group " | |
64 | "pointer\n"); | |
65 | return NULL; | |
66 | } | |
67 | ret = iscsit_get_tpg(tpg); | |
68 | if (ret < 0) | |
69 | return NULL; | |
70 | ||
71 | *tiqn_out = tpg->tpg_tiqn; | |
72 | return tpg; | |
73 | } | |
74 | ||
75 | /* Start items for lio_target_portal_cit */ | |
76 | ||
77 | static ssize_t lio_target_np_show_sctp( | |
78 | struct se_tpg_np *se_tpg_np, | |
79 | char *page) | |
80 | { | |
81 | struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, | |
82 | struct iscsi_tpg_np, se_tpg_np); | |
83 | struct iscsi_tpg_np *tpg_np_sctp; | |
84 | ssize_t rb; | |
85 | ||
86 | tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); | |
87 | if (tpg_np_sctp) | |
88 | rb = sprintf(page, "1\n"); | |
89 | else | |
90 | rb = sprintf(page, "0\n"); | |
91 | ||
92 | return rb; | |
93 | } | |
94 | ||
95 | static ssize_t lio_target_np_store_sctp( | |
96 | struct se_tpg_np *se_tpg_np, | |
97 | const char *page, | |
98 | size_t count) | |
99 | { | |
100 | struct iscsi_np *np; | |
101 | struct iscsi_portal_group *tpg; | |
102 | struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, | |
103 | struct iscsi_tpg_np, se_tpg_np); | |
104 | struct iscsi_tpg_np *tpg_np_sctp = NULL; | |
105 | char *endptr; | |
106 | u32 op; | |
107 | int ret; | |
108 | ||
109 | op = simple_strtoul(page, &endptr, 0); | |
110 | if ((op != 1) && (op != 0)) { | |
111 | pr_err("Illegal value for tpg_enable: %u\n", op); | |
112 | return -EINVAL; | |
113 | } | |
114 | np = tpg_np->tpg_np; | |
115 | if (!np) { | |
116 | pr_err("Unable to locate struct iscsi_np from" | |
117 | " struct iscsi_tpg_np\n"); | |
118 | return -EINVAL; | |
119 | } | |
120 | ||
121 | tpg = tpg_np->tpg; | |
122 | if (iscsit_get_tpg(tpg) < 0) | |
123 | return -EINVAL; | |
124 | ||
125 | if (op) { | |
126 | /* | |
127 | * Use existing np->np_sockaddr for SCTP network portal reference | |
128 | */ | |
129 | tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, | |
130 | np->np_ip, tpg_np, ISCSI_SCTP_TCP); | |
131 | if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) | |
132 | goto out; | |
133 | } else { | |
134 | tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); | |
135 | if (!tpg_np_sctp) | |
136 | goto out; | |
137 | ||
138 | ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); | |
139 | if (ret < 0) | |
140 | goto out; | |
141 | } | |
142 | ||
143 | iscsit_put_tpg(tpg); | |
144 | return count; | |
145 | out: | |
146 | iscsit_put_tpg(tpg); | |
147 | return -EINVAL; | |
148 | } | |
149 | ||
150 | TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); | |
151 | ||
152 | static struct configfs_attribute *lio_target_portal_attrs[] = { | |
153 | &lio_target_np_sctp.attr, | |
154 | NULL, | |
155 | }; | |
156 | ||
157 | /* Stop items for lio_target_portal_cit */ | |
158 | ||
159 | /* Start items for lio_target_np_cit */ | |
160 | ||
161 | #define MAX_PORTAL_LEN 256 | |
162 | ||
163 | struct se_tpg_np *lio_target_call_addnptotpg( | |
164 | struct se_portal_group *se_tpg, | |
165 | struct config_group *group, | |
166 | const char *name) | |
167 | { | |
168 | struct iscsi_portal_group *tpg; | |
169 | struct iscsi_tpg_np *tpg_np; | |
170 | char *str, *str2, *ip_str, *port_str; | |
171 | struct __kernel_sockaddr_storage sockaddr; | |
172 | struct sockaddr_in *sock_in; | |
173 | struct sockaddr_in6 *sock_in6; | |
174 | unsigned long port; | |
175 | int ret; | |
176 | char buf[MAX_PORTAL_LEN + 1]; | |
177 | ||
178 | if (strlen(name) > MAX_PORTAL_LEN) { | |
179 | pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", | |
180 | (int)strlen(name), MAX_PORTAL_LEN); | |
181 | return ERR_PTR(-EOVERFLOW); | |
182 | } | |
183 | memset(buf, 0, MAX_PORTAL_LEN + 1); | |
7bbb654e | 184 | snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); |
e48354ce NB |
185 | |
186 | memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); | |
187 | ||
188 | str = strstr(buf, "["); | |
189 | if (str) { | |
190 | const char *end; | |
191 | ||
192 | str2 = strstr(str, "]"); | |
193 | if (!str2) { | |
194 | pr_err("Unable to locate trailing \"]\"" | |
195 | " in IPv6 iSCSI network portal address\n"); | |
196 | return ERR_PTR(-EINVAL); | |
197 | } | |
198 | str++; /* Skip over leading "[" */ | |
199 | *str2 = '\0'; /* Terminate the IPv6 address */ | |
200 | str2++; /* Skip over the "]" */ | |
201 | port_str = strstr(str2, ":"); | |
202 | if (!port_str) { | |
203 | pr_err("Unable to locate \":port\"" | |
204 | " in IPv6 iSCSI network portal address\n"); | |
205 | return ERR_PTR(-EINVAL); | |
206 | } | |
207 | *port_str = '\0'; /* Terminate string for IP */ | |
208 | port_str++; /* Skip over ":" */ | |
209 | ||
210 | ret = strict_strtoul(port_str, 0, &port); | |
211 | if (ret < 0) { | |
212 | pr_err("strict_strtoul() failed for port_str: %d\n", ret); | |
213 | return ERR_PTR(ret); | |
214 | } | |
215 | sock_in6 = (struct sockaddr_in6 *)&sockaddr; | |
216 | sock_in6->sin6_family = AF_INET6; | |
217 | sock_in6->sin6_port = htons((unsigned short)port); | |
218 | ret = in6_pton(str, IPV6_ADDRESS_SPACE, | |
219 | (void *)&sock_in6->sin6_addr.in6_u, -1, &end); | |
220 | if (ret <= 0) { | |
221 | pr_err("in6_pton returned: %d\n", ret); | |
222 | return ERR_PTR(-EINVAL); | |
223 | } | |
224 | } else { | |
225 | str = ip_str = &buf[0]; | |
226 | port_str = strstr(ip_str, ":"); | |
227 | if (!port_str) { | |
228 | pr_err("Unable to locate \":port\"" | |
229 | " in IPv4 iSCSI network portal address\n"); | |
230 | return ERR_PTR(-EINVAL); | |
231 | } | |
232 | *port_str = '\0'; /* Terminate string for IP */ | |
233 | port_str++; /* Skip over ":" */ | |
234 | ||
235 | ret = strict_strtoul(port_str, 0, &port); | |
236 | if (ret < 0) { | |
237 | pr_err("strict_strtoul() failed for port_str: %d\n", ret); | |
238 | return ERR_PTR(ret); | |
239 | } | |
240 | sock_in = (struct sockaddr_in *)&sockaddr; | |
241 | sock_in->sin_family = AF_INET; | |
242 | sock_in->sin_port = htons((unsigned short)port); | |
243 | sock_in->sin_addr.s_addr = in_aton(ip_str); | |
244 | } | |
245 | tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); | |
246 | ret = iscsit_get_tpg(tpg); | |
247 | if (ret < 0) | |
248 | return ERR_PTR(-EINVAL); | |
249 | ||
250 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" | |
251 | " PORTAL: %s\n", | |
252 | config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), | |
253 | tpg->tpgt, name); | |
254 | /* | |
255 | * Assume ISCSI_TCP by default. Other network portals for other | |
256 | * iSCSI fabrics: | |
257 | * | |
258 | * Traditional iSCSI over SCTP (initial support) | |
259 | * iSER/TCP (TODO, hardware available) | |
260 | * iSER/SCTP (TODO, software emulation with osc-iwarp) | |
261 | * iSER/IB (TODO, hardware available) | |
262 | * | |
263 | * can be enabled with atributes under | |
264 | * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ | |
265 | * | |
266 | */ | |
267 | tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, | |
268 | ISCSI_TCP); | |
269 | if (IS_ERR(tpg_np)) { | |
270 | iscsit_put_tpg(tpg); | |
271 | return ERR_PTR(PTR_ERR(tpg_np)); | |
272 | } | |
273 | pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); | |
274 | ||
275 | iscsit_put_tpg(tpg); | |
276 | return &tpg_np->se_tpg_np; | |
277 | } | |
278 | ||
279 | static void lio_target_call_delnpfromtpg( | |
280 | struct se_tpg_np *se_tpg_np) | |
281 | { | |
282 | struct iscsi_portal_group *tpg; | |
283 | struct iscsi_tpg_np *tpg_np; | |
284 | struct se_portal_group *se_tpg; | |
285 | int ret; | |
286 | ||
287 | tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); | |
288 | tpg = tpg_np->tpg; | |
289 | ret = iscsit_get_tpg(tpg); | |
290 | if (ret < 0) | |
291 | return; | |
292 | ||
293 | se_tpg = &tpg->tpg_se_tpg; | |
294 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" | |
295 | " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), | |
296 | tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); | |
297 | ||
298 | ret = iscsit_tpg_del_network_portal(tpg, tpg_np); | |
299 | if (ret < 0) | |
300 | goto out; | |
301 | ||
302 | pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); | |
303 | out: | |
304 | iscsit_put_tpg(tpg); | |
305 | } | |
306 | ||
307 | /* End items for lio_target_np_cit */ | |
308 | ||
309 | /* Start items for lio_target_nacl_attrib_cit */ | |
310 | ||
311 | #define DEF_NACL_ATTRIB(name) \ | |
312 | static ssize_t iscsi_nacl_attrib_show_##name( \ | |
313 | struct se_node_acl *se_nacl, \ | |
314 | char *page) \ | |
315 | { \ | |
316 | struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ | |
317 | se_node_acl); \ | |
318 | \ | |
319 | return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ | |
320 | } \ | |
321 | \ | |
322 | static ssize_t iscsi_nacl_attrib_store_##name( \ | |
323 | struct se_node_acl *se_nacl, \ | |
324 | const char *page, \ | |
325 | size_t count) \ | |
326 | { \ | |
327 | struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ | |
328 | se_node_acl); \ | |
329 | char *endptr; \ | |
330 | u32 val; \ | |
331 | int ret; \ | |
332 | \ | |
333 | val = simple_strtoul(page, &endptr, 0); \ | |
334 | ret = iscsit_na_##name(nacl, val); \ | |
335 | if (ret < 0) \ | |
336 | return ret; \ | |
337 | \ | |
338 | return count; \ | |
339 | } | |
340 | ||
341 | #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); | |
342 | /* | |
343 | * Define iscsi_node_attrib_s_dataout_timeout | |
344 | */ | |
345 | DEF_NACL_ATTRIB(dataout_timeout); | |
346 | NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); | |
347 | /* | |
348 | * Define iscsi_node_attrib_s_dataout_timeout_retries | |
349 | */ | |
350 | DEF_NACL_ATTRIB(dataout_timeout_retries); | |
351 | NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); | |
352 | /* | |
353 | * Define iscsi_node_attrib_s_default_erl | |
354 | */ | |
355 | DEF_NACL_ATTRIB(default_erl); | |
356 | NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); | |
357 | /* | |
358 | * Define iscsi_node_attrib_s_nopin_timeout | |
359 | */ | |
360 | DEF_NACL_ATTRIB(nopin_timeout); | |
361 | NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); | |
362 | /* | |
363 | * Define iscsi_node_attrib_s_nopin_response_timeout | |
364 | */ | |
365 | DEF_NACL_ATTRIB(nopin_response_timeout); | |
366 | NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); | |
367 | /* | |
368 | * Define iscsi_node_attrib_s_random_datain_pdu_offsets | |
369 | */ | |
370 | DEF_NACL_ATTRIB(random_datain_pdu_offsets); | |
371 | NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); | |
372 | /* | |
373 | * Define iscsi_node_attrib_s_random_datain_seq_offsets | |
374 | */ | |
375 | DEF_NACL_ATTRIB(random_datain_seq_offsets); | |
376 | NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); | |
377 | /* | |
378 | * Define iscsi_node_attrib_s_random_r2t_offsets | |
379 | */ | |
380 | DEF_NACL_ATTRIB(random_r2t_offsets); | |
381 | NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); | |
382 | ||
383 | static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { | |
384 | &iscsi_nacl_attrib_dataout_timeout.attr, | |
385 | &iscsi_nacl_attrib_dataout_timeout_retries.attr, | |
386 | &iscsi_nacl_attrib_default_erl.attr, | |
387 | &iscsi_nacl_attrib_nopin_timeout.attr, | |
388 | &iscsi_nacl_attrib_nopin_response_timeout.attr, | |
389 | &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, | |
390 | &iscsi_nacl_attrib_random_datain_seq_offsets.attr, | |
391 | &iscsi_nacl_attrib_random_r2t_offsets.attr, | |
392 | NULL, | |
393 | }; | |
394 | ||
395 | /* End items for lio_target_nacl_attrib_cit */ | |
396 | ||
397 | /* Start items for lio_target_nacl_auth_cit */ | |
398 | ||
399 | #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ | |
400 | static ssize_t __iscsi_##prefix##_show_##name( \ | |
401 | struct iscsi_node_acl *nacl, \ | |
402 | char *page) \ | |
403 | { \ | |
404 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
405 | \ | |
406 | if (!capable(CAP_SYS_ADMIN)) \ | |
407 | return -EPERM; \ | |
408 | return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ | |
409 | } \ | |
410 | \ | |
411 | static ssize_t __iscsi_##prefix##_store_##name( \ | |
412 | struct iscsi_node_acl *nacl, \ | |
413 | const char *page, \ | |
414 | size_t count) \ | |
415 | { \ | |
416 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
417 | \ | |
418 | if (!capable(CAP_SYS_ADMIN)) \ | |
419 | return -EPERM; \ | |
420 | \ | |
421 | snprintf(auth->name, PAGE_SIZE, "%s", page); \ | |
422 | if (!strncmp("NULL", auth->name, 4)) \ | |
423 | auth->naf_flags &= ~flags; \ | |
424 | else \ | |
425 | auth->naf_flags |= flags; \ | |
426 | \ | |
427 | if ((auth->naf_flags & NAF_USERID_IN_SET) && \ | |
428 | (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ | |
429 | auth->authenticate_target = 1; \ | |
430 | else \ | |
431 | auth->authenticate_target = 0; \ | |
432 | \ | |
433 | return count; \ | |
434 | } | |
435 | ||
436 | #define __DEF_NACL_AUTH_INT(prefix, name) \ | |
437 | static ssize_t __iscsi_##prefix##_show_##name( \ | |
438 | struct iscsi_node_acl *nacl, \ | |
439 | char *page) \ | |
440 | { \ | |
441 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
442 | \ | |
443 | if (!capable(CAP_SYS_ADMIN)) \ | |
444 | return -EPERM; \ | |
445 | \ | |
446 | return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ | |
447 | } | |
448 | ||
449 | #define DEF_NACL_AUTH_STR(name, flags) \ | |
450 | __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ | |
451 | static ssize_t iscsi_nacl_auth_show_##name( \ | |
452 | struct se_node_acl *nacl, \ | |
453 | char *page) \ | |
454 | { \ | |
455 | return __iscsi_nacl_auth_show_##name(container_of(nacl, \ | |
456 | struct iscsi_node_acl, se_node_acl), page); \ | |
457 | } \ | |
458 | static ssize_t iscsi_nacl_auth_store_##name( \ | |
459 | struct se_node_acl *nacl, \ | |
460 | const char *page, \ | |
461 | size_t count) \ | |
462 | { \ | |
463 | return __iscsi_nacl_auth_store_##name(container_of(nacl, \ | |
464 | struct iscsi_node_acl, se_node_acl), page, count); \ | |
465 | } | |
466 | ||
467 | #define DEF_NACL_AUTH_INT(name) \ | |
468 | __DEF_NACL_AUTH_INT(nacl_auth, name) \ | |
469 | static ssize_t iscsi_nacl_auth_show_##name( \ | |
470 | struct se_node_acl *nacl, \ | |
471 | char *page) \ | |
472 | { \ | |
473 | return __iscsi_nacl_auth_show_##name(container_of(nacl, \ | |
474 | struct iscsi_node_acl, se_node_acl), page); \ | |
475 | } | |
476 | ||
477 | #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); | |
478 | #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); | |
479 | ||
480 | /* | |
481 | * One-way authentication userid | |
482 | */ | |
483 | DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); | |
484 | AUTH_ATTR(userid, S_IRUGO | S_IWUSR); | |
485 | /* | |
486 | * One-way authentication password | |
487 | */ | |
488 | DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); | |
489 | AUTH_ATTR(password, S_IRUGO | S_IWUSR); | |
490 | /* | |
491 | * Enforce mutual authentication | |
492 | */ | |
493 | DEF_NACL_AUTH_INT(authenticate_target); | |
494 | AUTH_ATTR_RO(authenticate_target); | |
495 | /* | |
496 | * Mutual authentication userid | |
497 | */ | |
498 | DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); | |
499 | AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); | |
500 | /* | |
501 | * Mutual authentication password | |
502 | */ | |
503 | DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); | |
504 | AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); | |
505 | ||
506 | static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { | |
507 | &iscsi_nacl_auth_userid.attr, | |
508 | &iscsi_nacl_auth_password.attr, | |
509 | &iscsi_nacl_auth_authenticate_target.attr, | |
510 | &iscsi_nacl_auth_userid_mutual.attr, | |
511 | &iscsi_nacl_auth_password_mutual.attr, | |
512 | NULL, | |
513 | }; | |
514 | ||
515 | /* End items for lio_target_nacl_auth_cit */ | |
516 | ||
517 | /* Start items for lio_target_nacl_param_cit */ | |
518 | ||
519 | #define DEF_NACL_PARAM(name) \ | |
520 | static ssize_t iscsi_nacl_param_show_##name( \ | |
521 | struct se_node_acl *se_nacl, \ | |
522 | char *page) \ | |
523 | { \ | |
524 | struct iscsi_session *sess; \ | |
525 | struct se_session *se_sess; \ | |
526 | ssize_t rb; \ | |
527 | \ | |
528 | spin_lock_bh(&se_nacl->nacl_sess_lock); \ | |
529 | se_sess = se_nacl->nacl_sess; \ | |
530 | if (!se_sess) { \ | |
531 | rb = snprintf(page, PAGE_SIZE, \ | |
532 | "No Active iSCSI Session\n"); \ | |
533 | } else { \ | |
534 | sess = se_sess->fabric_sess_ptr; \ | |
535 | rb = snprintf(page, PAGE_SIZE, "%u\n", \ | |
536 | (u32)sess->sess_ops->name); \ | |
537 | } \ | |
538 | spin_unlock_bh(&se_nacl->nacl_sess_lock); \ | |
539 | \ | |
540 | return rb; \ | |
541 | } | |
542 | ||
543 | #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); | |
544 | ||
545 | DEF_NACL_PARAM(MaxConnections); | |
546 | NACL_PARAM_ATTR(MaxConnections); | |
547 | ||
548 | DEF_NACL_PARAM(InitialR2T); | |
549 | NACL_PARAM_ATTR(InitialR2T); | |
550 | ||
551 | DEF_NACL_PARAM(ImmediateData); | |
552 | NACL_PARAM_ATTR(ImmediateData); | |
553 | ||
554 | DEF_NACL_PARAM(MaxBurstLength); | |
555 | NACL_PARAM_ATTR(MaxBurstLength); | |
556 | ||
557 | DEF_NACL_PARAM(FirstBurstLength); | |
558 | NACL_PARAM_ATTR(FirstBurstLength); | |
559 | ||
560 | DEF_NACL_PARAM(DefaultTime2Wait); | |
561 | NACL_PARAM_ATTR(DefaultTime2Wait); | |
562 | ||
563 | DEF_NACL_PARAM(DefaultTime2Retain); | |
564 | NACL_PARAM_ATTR(DefaultTime2Retain); | |
565 | ||
566 | DEF_NACL_PARAM(MaxOutstandingR2T); | |
567 | NACL_PARAM_ATTR(MaxOutstandingR2T); | |
568 | ||
569 | DEF_NACL_PARAM(DataPDUInOrder); | |
570 | NACL_PARAM_ATTR(DataPDUInOrder); | |
571 | ||
572 | DEF_NACL_PARAM(DataSequenceInOrder); | |
573 | NACL_PARAM_ATTR(DataSequenceInOrder); | |
574 | ||
575 | DEF_NACL_PARAM(ErrorRecoveryLevel); | |
576 | NACL_PARAM_ATTR(ErrorRecoveryLevel); | |
577 | ||
578 | static struct configfs_attribute *lio_target_nacl_param_attrs[] = { | |
579 | &iscsi_nacl_param_MaxConnections.attr, | |
580 | &iscsi_nacl_param_InitialR2T.attr, | |
581 | &iscsi_nacl_param_ImmediateData.attr, | |
582 | &iscsi_nacl_param_MaxBurstLength.attr, | |
583 | &iscsi_nacl_param_FirstBurstLength.attr, | |
584 | &iscsi_nacl_param_DefaultTime2Wait.attr, | |
585 | &iscsi_nacl_param_DefaultTime2Retain.attr, | |
586 | &iscsi_nacl_param_MaxOutstandingR2T.attr, | |
587 | &iscsi_nacl_param_DataPDUInOrder.attr, | |
588 | &iscsi_nacl_param_DataSequenceInOrder.attr, | |
589 | &iscsi_nacl_param_ErrorRecoveryLevel.attr, | |
590 | NULL, | |
591 | }; | |
592 | ||
593 | /* End items for lio_target_nacl_param_cit */ | |
594 | ||
595 | /* Start items for lio_target_acl_cit */ | |
596 | ||
597 | static ssize_t lio_target_nacl_show_info( | |
598 | struct se_node_acl *se_nacl, | |
599 | char *page) | |
600 | { | |
601 | struct iscsi_session *sess; | |
602 | struct iscsi_conn *conn; | |
603 | struct se_session *se_sess; | |
604 | ssize_t rb = 0; | |
605 | ||
606 | spin_lock_bh(&se_nacl->nacl_sess_lock); | |
607 | se_sess = se_nacl->nacl_sess; | |
608 | if (!se_sess) { | |
609 | rb += sprintf(page+rb, "No active iSCSI Session for Initiator" | |
610 | " Endpoint: %s\n", se_nacl->initiatorname); | |
611 | } else { | |
612 | sess = se_sess->fabric_sess_ptr; | |
613 | ||
614 | if (sess->sess_ops->InitiatorName) | |
615 | rb += sprintf(page+rb, "InitiatorName: %s\n", | |
616 | sess->sess_ops->InitiatorName); | |
617 | if (sess->sess_ops->InitiatorAlias) | |
618 | rb += sprintf(page+rb, "InitiatorAlias: %s\n", | |
619 | sess->sess_ops->InitiatorAlias); | |
620 | ||
621 | rb += sprintf(page+rb, "LIO Session ID: %u " | |
622 | "ISID: 0x%02x %02x %02x %02x %02x %02x " | |
623 | "TSIH: %hu ", sess->sid, | |
624 | sess->isid[0], sess->isid[1], sess->isid[2], | |
625 | sess->isid[3], sess->isid[4], sess->isid[5], | |
626 | sess->tsih); | |
627 | rb += sprintf(page+rb, "SessionType: %s\n", | |
628 | (sess->sess_ops->SessionType) ? | |
629 | "Discovery" : "Normal"); | |
630 | rb += sprintf(page+rb, "Session State: "); | |
631 | switch (sess->session_state) { | |
632 | case TARG_SESS_STATE_FREE: | |
633 | rb += sprintf(page+rb, "TARG_SESS_FREE\n"); | |
634 | break; | |
635 | case TARG_SESS_STATE_ACTIVE: | |
636 | rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); | |
637 | break; | |
638 | case TARG_SESS_STATE_LOGGED_IN: | |
639 | rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); | |
640 | break; | |
641 | case TARG_SESS_STATE_FAILED: | |
642 | rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); | |
643 | break; | |
644 | case TARG_SESS_STATE_IN_CONTINUE: | |
645 | rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); | |
646 | break; | |
647 | default: | |
648 | rb += sprintf(page+rb, "ERROR: Unknown Session" | |
649 | " State!\n"); | |
650 | break; | |
651 | } | |
652 | ||
653 | rb += sprintf(page+rb, "---------------------[iSCSI Session" | |
654 | " Values]-----------------------\n"); | |
655 | rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" | |
656 | " : MaxCmdSN : ITT : TTT\n"); | |
657 | rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" | |
658 | " 0x%08x 0x%08x\n", | |
659 | sess->cmdsn_window, | |
660 | (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, | |
661 | sess->exp_cmd_sn, sess->max_cmd_sn, | |
662 | sess->init_task_tag, sess->targ_xfer_tag); | |
663 | rb += sprintf(page+rb, "----------------------[iSCSI" | |
664 | " Connections]-------------------------\n"); | |
665 | ||
666 | spin_lock(&sess->conn_lock); | |
667 | list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { | |
668 | rb += sprintf(page+rb, "CID: %hu Connection" | |
669 | " State: ", conn->cid); | |
670 | switch (conn->conn_state) { | |
671 | case TARG_CONN_STATE_FREE: | |
672 | rb += sprintf(page+rb, | |
673 | "TARG_CONN_STATE_FREE\n"); | |
674 | break; | |
675 | case TARG_CONN_STATE_XPT_UP: | |
676 | rb += sprintf(page+rb, | |
677 | "TARG_CONN_STATE_XPT_UP\n"); | |
678 | break; | |
679 | case TARG_CONN_STATE_IN_LOGIN: | |
680 | rb += sprintf(page+rb, | |
681 | "TARG_CONN_STATE_IN_LOGIN\n"); | |
682 | break; | |
683 | case TARG_CONN_STATE_LOGGED_IN: | |
684 | rb += sprintf(page+rb, | |
685 | "TARG_CONN_STATE_LOGGED_IN\n"); | |
686 | break; | |
687 | case TARG_CONN_STATE_IN_LOGOUT: | |
688 | rb += sprintf(page+rb, | |
689 | "TARG_CONN_STATE_IN_LOGOUT\n"); | |
690 | break; | |
691 | case TARG_CONN_STATE_LOGOUT_REQUESTED: | |
692 | rb += sprintf(page+rb, | |
693 | "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); | |
694 | break; | |
695 | case TARG_CONN_STATE_CLEANUP_WAIT: | |
696 | rb += sprintf(page+rb, | |
697 | "TARG_CONN_STATE_CLEANUP_WAIT\n"); | |
698 | break; | |
699 | default: | |
700 | rb += sprintf(page+rb, | |
701 | "ERROR: Unknown Connection State!\n"); | |
702 | break; | |
703 | } | |
704 | ||
705 | rb += sprintf(page+rb, " Address %s %s", conn->login_ip, | |
706 | (conn->network_transport == ISCSI_TCP) ? | |
707 | "TCP" : "SCTP"); | |
708 | rb += sprintf(page+rb, " StatSN: 0x%08x\n", | |
709 | conn->stat_sn); | |
710 | } | |
711 | spin_unlock(&sess->conn_lock); | |
712 | } | |
713 | spin_unlock_bh(&se_nacl->nacl_sess_lock); | |
714 | ||
715 | return rb; | |
716 | } | |
717 | ||
718 | TF_NACL_BASE_ATTR_RO(lio_target, info); | |
719 | ||
720 | static ssize_t lio_target_nacl_show_cmdsn_depth( | |
721 | struct se_node_acl *se_nacl, | |
722 | char *page) | |
723 | { | |
724 | return sprintf(page, "%u\n", se_nacl->queue_depth); | |
725 | } | |
726 | ||
727 | static ssize_t lio_target_nacl_store_cmdsn_depth( | |
728 | struct se_node_acl *se_nacl, | |
729 | const char *page, | |
730 | size_t count) | |
731 | { | |
732 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
733 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
734 | struct iscsi_portal_group, tpg_se_tpg); | |
735 | struct config_item *acl_ci, *tpg_ci, *wwn_ci; | |
736 | char *endptr; | |
737 | u32 cmdsn_depth = 0; | |
738 | int ret; | |
739 | ||
740 | cmdsn_depth = simple_strtoul(page, &endptr, 0); | |
741 | if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { | |
742 | pr_err("Passed cmdsn_depth: %u exceeds" | |
743 | " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, | |
744 | TA_DEFAULT_CMDSN_DEPTH_MAX); | |
745 | return -EINVAL; | |
746 | } | |
747 | acl_ci = &se_nacl->acl_group.cg_item; | |
748 | if (!acl_ci) { | |
749 | pr_err("Unable to locatel acl_ci\n"); | |
750 | return -EINVAL; | |
751 | } | |
752 | tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; | |
753 | if (!tpg_ci) { | |
754 | pr_err("Unable to locate tpg_ci\n"); | |
755 | return -EINVAL; | |
756 | } | |
757 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
758 | if (!wwn_ci) { | |
759 | pr_err("Unable to locate config_item wwn_ci\n"); | |
760 | return -EINVAL; | |
761 | } | |
762 | ||
763 | if (iscsit_get_tpg(tpg) < 0) | |
764 | return -EINVAL; | |
765 | /* | |
766 | * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 | |
767 | */ | |
768 | ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, | |
769 | config_item_name(acl_ci), cmdsn_depth, 1); | |
770 | ||
771 | pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" | |
772 | "InitiatorName: %s\n", config_item_name(wwn_ci), | |
773 | config_item_name(tpg_ci), cmdsn_depth, | |
774 | config_item_name(acl_ci)); | |
775 | ||
776 | iscsit_put_tpg(tpg); | |
777 | return (!ret) ? count : (ssize_t)ret; | |
778 | } | |
779 | ||
780 | TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); | |
781 | ||
782 | static struct configfs_attribute *lio_target_initiator_attrs[] = { | |
783 | &lio_target_nacl_info.attr, | |
784 | &lio_target_nacl_cmdsn_depth.attr, | |
785 | NULL, | |
786 | }; | |
787 | ||
788 | static struct se_node_acl *lio_tpg_alloc_fabric_acl( | |
789 | struct se_portal_group *se_tpg) | |
790 | { | |
791 | struct iscsi_node_acl *acl; | |
792 | ||
793 | acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); | |
794 | if (!acl) { | |
795 | pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); | |
796 | return NULL; | |
797 | } | |
798 | ||
799 | return &acl->se_node_acl; | |
800 | } | |
801 | ||
802 | static struct se_node_acl *lio_target_make_nodeacl( | |
803 | struct se_portal_group *se_tpg, | |
804 | struct config_group *group, | |
805 | const char *name) | |
806 | { | |
807 | struct config_group *stats_cg; | |
808 | struct iscsi_node_acl *acl; | |
809 | struct se_node_acl *se_nacl_new, *se_nacl; | |
810 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
811 | struct iscsi_portal_group, tpg_se_tpg); | |
812 | u32 cmdsn_depth; | |
813 | ||
814 | se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); | |
815 | if (!se_nacl_new) | |
816 | return ERR_PTR(-ENOMEM); | |
817 | ||
818 | acl = container_of(se_nacl_new, struct iscsi_node_acl, | |
819 | se_node_acl); | |
820 | ||
821 | cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; | |
822 | /* | |
823 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() | |
824 | * when converting a NdoeACL from demo mode -> explict | |
825 | */ | |
826 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, | |
827 | name, cmdsn_depth); | |
828 | if (IS_ERR(se_nacl)) | |
829 | return se_nacl; | |
830 | ||
831 | stats_cg = &acl->se_node_acl.acl_fabric_stat_group; | |
832 | ||
833 | stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
834 | GFP_KERNEL); | |
835 | if (!stats_cg->default_groups) { | |
836 | pr_err("Unable to allocate memory for" | |
837 | " stats_cg->default_groups\n"); | |
838 | core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); | |
839 | kfree(acl); | |
840 | return ERR_PTR(-ENOMEM); | |
841 | } | |
842 | ||
843 | stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; | |
844 | stats_cg->default_groups[1] = NULL; | |
845 | config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, | |
846 | "iscsi_sess_stats", &iscsi_stat_sess_cit); | |
847 | ||
848 | return se_nacl; | |
849 | } | |
850 | ||
851 | static void lio_target_drop_nodeacl( | |
852 | struct se_node_acl *se_nacl) | |
853 | { | |
854 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
855 | struct iscsi_node_acl *acl = container_of(se_nacl, | |
856 | struct iscsi_node_acl, se_node_acl); | |
857 | struct config_item *df_item; | |
858 | struct config_group *stats_cg; | |
859 | int i; | |
860 | ||
861 | stats_cg = &acl->se_node_acl.acl_fabric_stat_group; | |
862 | for (i = 0; stats_cg->default_groups[i]; i++) { | |
863 | df_item = &stats_cg->default_groups[i]->cg_item; | |
864 | stats_cg->default_groups[i] = NULL; | |
865 | config_item_put(df_item); | |
866 | } | |
867 | kfree(stats_cg->default_groups); | |
868 | ||
869 | core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); | |
870 | kfree(acl); | |
871 | } | |
872 | ||
873 | /* End items for lio_target_acl_cit */ | |
874 | ||
875 | /* Start items for lio_target_tpg_attrib_cit */ | |
876 | ||
877 | #define DEF_TPG_ATTRIB(name) \ | |
878 | \ | |
879 | static ssize_t iscsi_tpg_attrib_show_##name( \ | |
880 | struct se_portal_group *se_tpg, \ | |
881 | char *page) \ | |
882 | { \ | |
883 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
884 | struct iscsi_portal_group, tpg_se_tpg); \ | |
885 | ssize_t rb; \ | |
886 | \ | |
887 | if (iscsit_get_tpg(tpg) < 0) \ | |
888 | return -EINVAL; \ | |
889 | \ | |
890 | rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ | |
891 | iscsit_put_tpg(tpg); \ | |
892 | return rb; \ | |
893 | } \ | |
894 | \ | |
895 | static ssize_t iscsi_tpg_attrib_store_##name( \ | |
896 | struct se_portal_group *se_tpg, \ | |
897 | const char *page, \ | |
898 | size_t count) \ | |
899 | { \ | |
900 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
901 | struct iscsi_portal_group, tpg_se_tpg); \ | |
902 | char *endptr; \ | |
903 | u32 val; \ | |
904 | int ret; \ | |
905 | \ | |
906 | if (iscsit_get_tpg(tpg) < 0) \ | |
907 | return -EINVAL; \ | |
908 | \ | |
909 | val = simple_strtoul(page, &endptr, 0); \ | |
910 | ret = iscsit_ta_##name(tpg, val); \ | |
911 | if (ret < 0) \ | |
912 | goto out; \ | |
913 | \ | |
914 | iscsit_put_tpg(tpg); \ | |
915 | return count; \ | |
916 | out: \ | |
917 | iscsit_put_tpg(tpg); \ | |
918 | return ret; \ | |
919 | } | |
920 | ||
921 | #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); | |
922 | ||
923 | /* | |
924 | * Define iscsi_tpg_attrib_s_authentication | |
925 | */ | |
926 | DEF_TPG_ATTRIB(authentication); | |
927 | TPG_ATTR(authentication, S_IRUGO | S_IWUSR); | |
928 | /* | |
929 | * Define iscsi_tpg_attrib_s_login_timeout | |
930 | */ | |
931 | DEF_TPG_ATTRIB(login_timeout); | |
932 | TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); | |
933 | /* | |
934 | * Define iscsi_tpg_attrib_s_netif_timeout | |
935 | */ | |
936 | DEF_TPG_ATTRIB(netif_timeout); | |
937 | TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); | |
938 | /* | |
939 | * Define iscsi_tpg_attrib_s_generate_node_acls | |
940 | */ | |
941 | DEF_TPG_ATTRIB(generate_node_acls); | |
942 | TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
943 | /* | |
944 | * Define iscsi_tpg_attrib_s_default_cmdsn_depth | |
945 | */ | |
946 | DEF_TPG_ATTRIB(default_cmdsn_depth); | |
947 | TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); | |
948 | /* | |
949 | Define iscsi_tpg_attrib_s_cache_dynamic_acls | |
950 | */ | |
951 | DEF_TPG_ATTRIB(cache_dynamic_acls); | |
952 | TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
953 | /* | |
954 | * Define iscsi_tpg_attrib_s_demo_mode_write_protect | |
955 | */ | |
956 | DEF_TPG_ATTRIB(demo_mode_write_protect); | |
957 | TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
958 | /* | |
959 | * Define iscsi_tpg_attrib_s_prod_mode_write_protect | |
960 | */ | |
961 | DEF_TPG_ATTRIB(prod_mode_write_protect); | |
962 | TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
963 | ||
964 | static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { | |
965 | &iscsi_tpg_attrib_authentication.attr, | |
966 | &iscsi_tpg_attrib_login_timeout.attr, | |
967 | &iscsi_tpg_attrib_netif_timeout.attr, | |
968 | &iscsi_tpg_attrib_generate_node_acls.attr, | |
969 | &iscsi_tpg_attrib_default_cmdsn_depth.attr, | |
970 | &iscsi_tpg_attrib_cache_dynamic_acls.attr, | |
971 | &iscsi_tpg_attrib_demo_mode_write_protect.attr, | |
972 | &iscsi_tpg_attrib_prod_mode_write_protect.attr, | |
973 | NULL, | |
974 | }; | |
975 | ||
976 | /* End items for lio_target_tpg_attrib_cit */ | |
977 | ||
978 | /* Start items for lio_target_tpg_param_cit */ | |
979 | ||
980 | #define DEF_TPG_PARAM(name) \ | |
981 | static ssize_t iscsi_tpg_param_show_##name( \ | |
982 | struct se_portal_group *se_tpg, \ | |
983 | char *page) \ | |
984 | { \ | |
985 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
986 | struct iscsi_portal_group, tpg_se_tpg); \ | |
987 | struct iscsi_param *param; \ | |
988 | ssize_t rb; \ | |
989 | \ | |
990 | if (iscsit_get_tpg(tpg) < 0) \ | |
991 | return -EINVAL; \ | |
992 | \ | |
993 | param = iscsi_find_param_from_key(__stringify(name), \ | |
994 | tpg->param_list); \ | |
995 | if (!param) { \ | |
996 | iscsit_put_tpg(tpg); \ | |
997 | return -EINVAL; \ | |
998 | } \ | |
999 | rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ | |
1000 | \ | |
1001 | iscsit_put_tpg(tpg); \ | |
1002 | return rb; \ | |
1003 | } \ | |
1004 | static ssize_t iscsi_tpg_param_store_##name( \ | |
1005 | struct se_portal_group *se_tpg, \ | |
1006 | const char *page, \ | |
1007 | size_t count) \ | |
1008 | { \ | |
1009 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
1010 | struct iscsi_portal_group, tpg_se_tpg); \ | |
1011 | char *buf; \ | |
1012 | int ret; \ | |
1013 | \ | |
1014 | buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ | |
1015 | if (!buf) \ | |
1016 | return -ENOMEM; \ | |
1017 | snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ | |
1018 | buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ | |
1019 | \ | |
1020 | if (iscsit_get_tpg(tpg) < 0) { \ | |
1021 | kfree(buf); \ | |
1022 | return -EINVAL; \ | |
1023 | } \ | |
1024 | \ | |
1025 | ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ | |
1026 | if (ret < 0) \ | |
1027 | goto out; \ | |
1028 | \ | |
1029 | kfree(buf); \ | |
1030 | iscsit_put_tpg(tpg); \ | |
1031 | return count; \ | |
1032 | out: \ | |
1033 | kfree(buf); \ | |
1034 | iscsit_put_tpg(tpg); \ | |
1035 | return -EINVAL; \ | |
1036 | } | |
1037 | ||
1038 | #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); | |
1039 | ||
1040 | DEF_TPG_PARAM(AuthMethod); | |
1041 | TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); | |
1042 | ||
1043 | DEF_TPG_PARAM(HeaderDigest); | |
1044 | TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); | |
1045 | ||
1046 | DEF_TPG_PARAM(DataDigest); | |
1047 | TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); | |
1048 | ||
1049 | DEF_TPG_PARAM(MaxConnections); | |
1050 | TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); | |
1051 | ||
1052 | DEF_TPG_PARAM(TargetAlias); | |
1053 | TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); | |
1054 | ||
1055 | DEF_TPG_PARAM(InitialR2T); | |
1056 | TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); | |
1057 | ||
1058 | DEF_TPG_PARAM(ImmediateData); | |
1059 | TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); | |
1060 | ||
1061 | DEF_TPG_PARAM(MaxRecvDataSegmentLength); | |
1062 | TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); | |
1063 | ||
1064 | DEF_TPG_PARAM(MaxBurstLength); | |
1065 | TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); | |
1066 | ||
1067 | DEF_TPG_PARAM(FirstBurstLength); | |
1068 | TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); | |
1069 | ||
1070 | DEF_TPG_PARAM(DefaultTime2Wait); | |
1071 | TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); | |
1072 | ||
1073 | DEF_TPG_PARAM(DefaultTime2Retain); | |
1074 | TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); | |
1075 | ||
1076 | DEF_TPG_PARAM(MaxOutstandingR2T); | |
1077 | TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); | |
1078 | ||
1079 | DEF_TPG_PARAM(DataPDUInOrder); | |
1080 | TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); | |
1081 | ||
1082 | DEF_TPG_PARAM(DataSequenceInOrder); | |
1083 | TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); | |
1084 | ||
1085 | DEF_TPG_PARAM(ErrorRecoveryLevel); | |
1086 | TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); | |
1087 | ||
1088 | DEF_TPG_PARAM(IFMarker); | |
1089 | TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); | |
1090 | ||
1091 | DEF_TPG_PARAM(OFMarker); | |
1092 | TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); | |
1093 | ||
1094 | DEF_TPG_PARAM(IFMarkInt); | |
1095 | TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); | |
1096 | ||
1097 | DEF_TPG_PARAM(OFMarkInt); | |
1098 | TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); | |
1099 | ||
1100 | static struct configfs_attribute *lio_target_tpg_param_attrs[] = { | |
1101 | &iscsi_tpg_param_AuthMethod.attr, | |
1102 | &iscsi_tpg_param_HeaderDigest.attr, | |
1103 | &iscsi_tpg_param_DataDigest.attr, | |
1104 | &iscsi_tpg_param_MaxConnections.attr, | |
1105 | &iscsi_tpg_param_TargetAlias.attr, | |
1106 | &iscsi_tpg_param_InitialR2T.attr, | |
1107 | &iscsi_tpg_param_ImmediateData.attr, | |
1108 | &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, | |
1109 | &iscsi_tpg_param_MaxBurstLength.attr, | |
1110 | &iscsi_tpg_param_FirstBurstLength.attr, | |
1111 | &iscsi_tpg_param_DefaultTime2Wait.attr, | |
1112 | &iscsi_tpg_param_DefaultTime2Retain.attr, | |
1113 | &iscsi_tpg_param_MaxOutstandingR2T.attr, | |
1114 | &iscsi_tpg_param_DataPDUInOrder.attr, | |
1115 | &iscsi_tpg_param_DataSequenceInOrder.attr, | |
1116 | &iscsi_tpg_param_ErrorRecoveryLevel.attr, | |
1117 | &iscsi_tpg_param_IFMarker.attr, | |
1118 | &iscsi_tpg_param_OFMarker.attr, | |
1119 | &iscsi_tpg_param_IFMarkInt.attr, | |
1120 | &iscsi_tpg_param_OFMarkInt.attr, | |
1121 | NULL, | |
1122 | }; | |
1123 | ||
1124 | /* End items for lio_target_tpg_param_cit */ | |
1125 | ||
1126 | /* Start items for lio_target_tpg_cit */ | |
1127 | ||
1128 | static ssize_t lio_target_tpg_show_enable( | |
1129 | struct se_portal_group *se_tpg, | |
1130 | char *page) | |
1131 | { | |
1132 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
1133 | struct iscsi_portal_group, tpg_se_tpg); | |
1134 | ssize_t len; | |
1135 | ||
1136 | spin_lock(&tpg->tpg_state_lock); | |
1137 | len = sprintf(page, "%d\n", | |
1138 | (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); | |
1139 | spin_unlock(&tpg->tpg_state_lock); | |
1140 | ||
1141 | return len; | |
1142 | } | |
1143 | ||
1144 | static ssize_t lio_target_tpg_store_enable( | |
1145 | struct se_portal_group *se_tpg, | |
1146 | const char *page, | |
1147 | size_t count) | |
1148 | { | |
1149 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
1150 | struct iscsi_portal_group, tpg_se_tpg); | |
1151 | char *endptr; | |
1152 | u32 op; | |
1153 | int ret = 0; | |
1154 | ||
1155 | op = simple_strtoul(page, &endptr, 0); | |
1156 | if ((op != 1) && (op != 0)) { | |
1157 | pr_err("Illegal value for tpg_enable: %u\n", op); | |
1158 | return -EINVAL; | |
1159 | } | |
1160 | ||
1161 | ret = iscsit_get_tpg(tpg); | |
1162 | if (ret < 0) | |
1163 | return -EINVAL; | |
1164 | ||
1165 | if (op) { | |
1166 | ret = iscsit_tpg_enable_portal_group(tpg); | |
1167 | if (ret < 0) | |
1168 | goto out; | |
1169 | } else { | |
1170 | /* | |
1171 | * iscsit_tpg_disable_portal_group() assumes force=1 | |
1172 | */ | |
1173 | ret = iscsit_tpg_disable_portal_group(tpg, 1); | |
1174 | if (ret < 0) | |
1175 | goto out; | |
1176 | } | |
1177 | ||
1178 | iscsit_put_tpg(tpg); | |
1179 | return count; | |
1180 | out: | |
1181 | iscsit_put_tpg(tpg); | |
1182 | return -EINVAL; | |
1183 | } | |
1184 | ||
1185 | TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); | |
1186 | ||
1187 | static struct configfs_attribute *lio_target_tpg_attrs[] = { | |
1188 | &lio_target_tpg_enable.attr, | |
1189 | NULL, | |
1190 | }; | |
1191 | ||
1192 | /* End items for lio_target_tpg_cit */ | |
1193 | ||
1194 | /* Start items for lio_target_tiqn_cit */ | |
1195 | ||
1196 | struct se_portal_group *lio_target_tiqn_addtpg( | |
1197 | struct se_wwn *wwn, | |
1198 | struct config_group *group, | |
1199 | const char *name) | |
1200 | { | |
1201 | struct iscsi_portal_group *tpg; | |
1202 | struct iscsi_tiqn *tiqn; | |
1203 | char *tpgt_str, *end_ptr; | |
1204 | int ret = 0; | |
1205 | unsigned short int tpgt; | |
1206 | ||
1207 | tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); | |
1208 | /* | |
1209 | * Only tpgt_# directory groups can be created below | |
1210 | * target/iscsi/iqn.superturodiskarry/ | |
1211 | */ | |
1212 | tpgt_str = strstr(name, "tpgt_"); | |
1213 | if (!tpgt_str) { | |
1214 | pr_err("Unable to locate \"tpgt_#\" directory" | |
1215 | " group\n"); | |
1216 | return NULL; | |
1217 | } | |
1218 | tpgt_str += 5; /* Skip ahead of "tpgt_" */ | |
1219 | tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); | |
1220 | ||
1221 | tpg = iscsit_alloc_portal_group(tiqn, tpgt); | |
1222 | if (!tpg) | |
1223 | return NULL; | |
1224 | ||
1225 | ret = core_tpg_register( | |
1226 | &lio_target_fabric_configfs->tf_ops, | |
1227 | wwn, &tpg->tpg_se_tpg, (void *)tpg, | |
1228 | TRANSPORT_TPG_TYPE_NORMAL); | |
1229 | if (ret < 0) | |
1230 | return NULL; | |
1231 | ||
1232 | ret = iscsit_tpg_add_portal_group(tiqn, tpg); | |
1233 | if (ret != 0) | |
1234 | goto out; | |
1235 | ||
1236 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); | |
1237 | pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", | |
1238 | name); | |
1239 | return &tpg->tpg_se_tpg; | |
1240 | out: | |
1241 | core_tpg_deregister(&tpg->tpg_se_tpg); | |
1242 | kfree(tpg); | |
1243 | return NULL; | |
1244 | } | |
1245 | ||
1246 | void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) | |
1247 | { | |
1248 | struct iscsi_portal_group *tpg; | |
1249 | struct iscsi_tiqn *tiqn; | |
1250 | ||
1251 | tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); | |
1252 | tiqn = tpg->tpg_tiqn; | |
1253 | /* | |
1254 | * iscsit_tpg_del_portal_group() assumes force=1 | |
1255 | */ | |
1256 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); | |
1257 | iscsit_tpg_del_portal_group(tiqn, tpg, 1); | |
1258 | } | |
1259 | ||
1260 | /* End items for lio_target_tiqn_cit */ | |
1261 | ||
1262 | /* Start LIO-Target TIQN struct contig_item lio_target_cit */ | |
1263 | ||
1264 | static ssize_t lio_target_wwn_show_attr_lio_version( | |
1265 | struct target_fabric_configfs *tf, | |
1266 | char *page) | |
1267 | { | |
1268 | return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); | |
1269 | } | |
1270 | ||
1271 | TF_WWN_ATTR_RO(lio_target, lio_version); | |
1272 | ||
1273 | static struct configfs_attribute *lio_target_wwn_attrs[] = { | |
1274 | &lio_target_wwn_lio_version.attr, | |
1275 | NULL, | |
1276 | }; | |
1277 | ||
1278 | struct se_wwn *lio_target_call_coreaddtiqn( | |
1279 | struct target_fabric_configfs *tf, | |
1280 | struct config_group *group, | |
1281 | const char *name) | |
1282 | { | |
1283 | struct config_group *stats_cg; | |
1284 | struct iscsi_tiqn *tiqn; | |
1285 | ||
1286 | tiqn = iscsit_add_tiqn((unsigned char *)name); | |
1287 | if (IS_ERR(tiqn)) | |
1288 | return ERR_PTR(PTR_ERR(tiqn)); | |
1289 | /* | |
1290 | * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. | |
1291 | */ | |
1292 | stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; | |
1293 | ||
1294 | stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, | |
1295 | GFP_KERNEL); | |
1296 | if (!stats_cg->default_groups) { | |
1297 | pr_err("Unable to allocate memory for" | |
1298 | " stats_cg->default_groups\n"); | |
1299 | iscsit_del_tiqn(tiqn); | |
1300 | return ERR_PTR(-ENOMEM); | |
1301 | } | |
1302 | ||
1303 | stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; | |
1304 | stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; | |
1305 | stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; | |
1306 | stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; | |
1307 | stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; | |
1308 | stats_cg->default_groups[5] = NULL; | |
1309 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, | |
1310 | "iscsi_instance", &iscsi_stat_instance_cit); | |
1311 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, | |
1312 | "iscsi_sess_err", &iscsi_stat_sess_err_cit); | |
1313 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, | |
1314 | "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); | |
1315 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, | |
1316 | "iscsi_login_stats", &iscsi_stat_login_cit); | |
1317 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, | |
1318 | "iscsi_logout_stats", &iscsi_stat_logout_cit); | |
1319 | ||
1320 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); | |
1321 | pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" | |
1322 | " %s\n", name); | |
1323 | return &tiqn->tiqn_wwn; | |
1324 | } | |
1325 | ||
1326 | void lio_target_call_coredeltiqn( | |
1327 | struct se_wwn *wwn) | |
1328 | { | |
1329 | struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); | |
1330 | struct config_item *df_item; | |
1331 | struct config_group *stats_cg; | |
1332 | int i; | |
1333 | ||
1334 | stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; | |
1335 | for (i = 0; stats_cg->default_groups[i]; i++) { | |
1336 | df_item = &stats_cg->default_groups[i]->cg_item; | |
1337 | stats_cg->default_groups[i] = NULL; | |
1338 | config_item_put(df_item); | |
1339 | } | |
1340 | kfree(stats_cg->default_groups); | |
1341 | ||
1342 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", | |
1343 | tiqn->tiqn); | |
1344 | iscsit_del_tiqn(tiqn); | |
1345 | } | |
1346 | ||
1347 | /* End LIO-Target TIQN struct contig_lio_target_cit */ | |
1348 | ||
1349 | /* Start lio_target_discovery_auth_cit */ | |
1350 | ||
1351 | #define DEF_DISC_AUTH_STR(name, flags) \ | |
1352 | __DEF_NACL_AUTH_STR(disc, name, flags) \ | |
1353 | static ssize_t iscsi_disc_show_##name( \ | |
1354 | struct target_fabric_configfs *tf, \ | |
1355 | char *page) \ | |
1356 | { \ | |
1357 | return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ | |
1358 | page); \ | |
1359 | } \ | |
1360 | static ssize_t iscsi_disc_store_##name( \ | |
1361 | struct target_fabric_configfs *tf, \ | |
1362 | const char *page, \ | |
1363 | size_t count) \ | |
1364 | { \ | |
1365 | return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ | |
1366 | page, count); \ | |
1367 | } | |
1368 | ||
1369 | #define DEF_DISC_AUTH_INT(name) \ | |
1370 | __DEF_NACL_AUTH_INT(disc, name) \ | |
1371 | static ssize_t iscsi_disc_show_##name( \ | |
1372 | struct target_fabric_configfs *tf, \ | |
1373 | char *page) \ | |
1374 | { \ | |
1375 | return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ | |
1376 | page); \ | |
1377 | } | |
1378 | ||
1379 | #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) | |
1380 | #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) | |
1381 | ||
1382 | /* | |
1383 | * One-way authentication userid | |
1384 | */ | |
1385 | DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); | |
1386 | DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); | |
1387 | /* | |
1388 | * One-way authentication password | |
1389 | */ | |
1390 | DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); | |
1391 | DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); | |
1392 | /* | |
1393 | * Enforce mutual authentication | |
1394 | */ | |
1395 | DEF_DISC_AUTH_INT(authenticate_target); | |
1396 | DISC_AUTH_ATTR_RO(authenticate_target); | |
1397 | /* | |
1398 | * Mutual authentication userid | |
1399 | */ | |
1400 | DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); | |
1401 | DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); | |
1402 | /* | |
1403 | * Mutual authentication password | |
1404 | */ | |
1405 | DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); | |
1406 | DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); | |
1407 | ||
1408 | /* | |
1409 | * enforce_discovery_auth | |
1410 | */ | |
1411 | static ssize_t iscsi_disc_show_enforce_discovery_auth( | |
1412 | struct target_fabric_configfs *tf, | |
1413 | char *page) | |
1414 | { | |
1415 | struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; | |
1416 | ||
1417 | return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); | |
1418 | } | |
1419 | ||
1420 | static ssize_t iscsi_disc_store_enforce_discovery_auth( | |
1421 | struct target_fabric_configfs *tf, | |
1422 | const char *page, | |
1423 | size_t count) | |
1424 | { | |
1425 | struct iscsi_param *param; | |
1426 | struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; | |
1427 | char *endptr; | |
1428 | u32 op; | |
1429 | ||
1430 | op = simple_strtoul(page, &endptr, 0); | |
1431 | if ((op != 1) && (op != 0)) { | |
1432 | pr_err("Illegal value for enforce_discovery_auth:" | |
1433 | " %u\n", op); | |
1434 | return -EINVAL; | |
1435 | } | |
1436 | ||
1437 | if (!discovery_tpg) { | |
1438 | pr_err("iscsit_global->discovery_tpg is NULL\n"); | |
1439 | return -EINVAL; | |
1440 | } | |
1441 | ||
1442 | param = iscsi_find_param_from_key(AUTHMETHOD, | |
1443 | discovery_tpg->param_list); | |
1444 | if (!param) | |
1445 | return -EINVAL; | |
1446 | ||
1447 | if (op) { | |
1448 | /* | |
1449 | * Reset the AuthMethod key to CHAP. | |
1450 | */ | |
1451 | if (iscsi_update_param_value(param, CHAP) < 0) | |
1452 | return -EINVAL; | |
1453 | ||
1454 | discovery_tpg->tpg_attrib.authentication = 1; | |
1455 | iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; | |
1456 | pr_debug("LIO-CORE[0] Successfully enabled" | |
1457 | " authentication enforcement for iSCSI" | |
1458 | " Discovery TPG\n"); | |
1459 | } else { | |
1460 | /* | |
1461 | * Reset the AuthMethod key to CHAP,None | |
1462 | */ | |
1463 | if (iscsi_update_param_value(param, "CHAP,None") < 0) | |
1464 | return -EINVAL; | |
1465 | ||
1466 | discovery_tpg->tpg_attrib.authentication = 0; | |
1467 | iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; | |
1468 | pr_debug("LIO-CORE[0] Successfully disabled" | |
1469 | " authentication enforcement for iSCSI" | |
1470 | " Discovery TPG\n"); | |
1471 | } | |
1472 | ||
1473 | return count; | |
1474 | } | |
1475 | ||
1476 | DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); | |
1477 | ||
1478 | static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { | |
1479 | &iscsi_disc_userid.attr, | |
1480 | &iscsi_disc_password.attr, | |
1481 | &iscsi_disc_authenticate_target.attr, | |
1482 | &iscsi_disc_userid_mutual.attr, | |
1483 | &iscsi_disc_password_mutual.attr, | |
1484 | &iscsi_disc_enforce_discovery_auth.attr, | |
1485 | NULL, | |
1486 | }; | |
1487 | ||
1488 | /* End lio_target_discovery_auth_cit */ | |
1489 | ||
1490 | /* Start functions for target_core_fabric_ops */ | |
1491 | ||
1492 | static char *iscsi_get_fabric_name(void) | |
1493 | { | |
1494 | return "iSCSI"; | |
1495 | } | |
1496 | ||
1497 | static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) | |
1498 | { | |
1499 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1500 | ||
1501 | return cmd->init_task_tag; | |
1502 | } | |
1503 | ||
1504 | static int iscsi_get_cmd_state(struct se_cmd *se_cmd) | |
1505 | { | |
1506 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1507 | ||
1508 | return cmd->i_state; | |
1509 | } | |
1510 | ||
1511 | static int iscsi_is_state_remove(struct se_cmd *se_cmd) | |
1512 | { | |
1513 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1514 | ||
1515 | return (cmd->i_state == ISTATE_REMOVE); | |
1516 | } | |
1517 | ||
1518 | static int lio_sess_logged_in(struct se_session *se_sess) | |
1519 | { | |
1520 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1521 | int ret; | |
1522 | /* | |
1523 | * Called with spin_lock_bh(&tpg_lock); and | |
1524 | * spin_lock(&se_tpg->session_lock); held. | |
1525 | */ | |
1526 | spin_lock(&sess->conn_lock); | |
1527 | ret = (sess->session_state != TARG_SESS_STATE_LOGGED_IN); | |
1528 | spin_unlock(&sess->conn_lock); | |
1529 | ||
1530 | return ret; | |
1531 | } | |
1532 | ||
1533 | static u32 lio_sess_get_index(struct se_session *se_sess) | |
1534 | { | |
1535 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1536 | ||
1537 | return sess->session_index; | |
1538 | } | |
1539 | ||
1540 | static u32 lio_sess_get_initiator_sid( | |
1541 | struct se_session *se_sess, | |
1542 | unsigned char *buf, | |
1543 | u32 size) | |
1544 | { | |
1545 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1546 | /* | |
1547 | * iSCSI Initiator Session Identifier from RFC-3720. | |
1548 | */ | |
1549 | return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", | |
1550 | sess->isid[0], sess->isid[1], sess->isid[2], | |
1551 | sess->isid[3], sess->isid[4], sess->isid[5]); | |
1552 | } | |
1553 | ||
1554 | static int lio_queue_data_in(struct se_cmd *se_cmd) | |
1555 | { | |
1556 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1557 | ||
1558 | cmd->i_state = ISTATE_SEND_DATAIN; | |
1559 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1560 | return 0; | |
1561 | } | |
1562 | ||
1563 | static int lio_write_pending(struct se_cmd *se_cmd) | |
1564 | { | |
1565 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1566 | ||
1567 | if (!cmd->immediate_data && !cmd->unsolicited_data) | |
1568 | return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); | |
1569 | ||
1570 | return 0; | |
1571 | } | |
1572 | ||
1573 | static int lio_write_pending_status(struct se_cmd *se_cmd) | |
1574 | { | |
1575 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1576 | int ret; | |
1577 | ||
1578 | spin_lock_bh(&cmd->istate_lock); | |
1579 | ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); | |
1580 | spin_unlock_bh(&cmd->istate_lock); | |
1581 | ||
1582 | return ret; | |
1583 | } | |
1584 | ||
1585 | static int lio_queue_status(struct se_cmd *se_cmd) | |
1586 | { | |
1587 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1588 | ||
1589 | cmd->i_state = ISTATE_SEND_STATUS; | |
1590 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) | |
1595 | { | |
1596 | unsigned char *buffer = se_cmd->sense_buffer; | |
1597 | /* | |
1598 | * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment | |
1599 | * 16-bit SenseLength. | |
1600 | */ | |
1601 | buffer[0] = ((sense_length >> 8) & 0xff); | |
1602 | buffer[1] = (sense_length & 0xff); | |
1603 | /* | |
1604 | * Return two byte offset into allocated sense_buffer. | |
1605 | */ | |
1606 | return 2; | |
1607 | } | |
1608 | ||
1609 | static u16 lio_get_fabric_sense_len(void) | |
1610 | { | |
1611 | /* | |
1612 | * Return two byte offset into allocated sense_buffer. | |
1613 | */ | |
1614 | return 2; | |
1615 | } | |
1616 | ||
1617 | static int lio_queue_tm_rsp(struct se_cmd *se_cmd) | |
1618 | { | |
1619 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1620 | ||
1621 | cmd->i_state = ISTATE_SEND_TASKMGTRSP; | |
1622 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) | |
1627 | { | |
1628 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1629 | ||
1630 | return &tpg->tpg_tiqn->tiqn[0]; | |
1631 | } | |
1632 | ||
1633 | static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) | |
1634 | { | |
1635 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1636 | ||
1637 | return tpg->tpgt; | |
1638 | } | |
1639 | ||
1640 | static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) | |
1641 | { | |
1642 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1643 | ||
1644 | return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; | |
1645 | } | |
1646 | ||
1647 | static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) | |
1648 | { | |
1649 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1650 | ||
1651 | return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; | |
1652 | } | |
1653 | ||
1654 | static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
1655 | { | |
1656 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1657 | ||
1658 | return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; | |
1659 | } | |
1660 | ||
1661 | static int lio_tpg_check_demo_mode_write_protect( | |
1662 | struct se_portal_group *se_tpg) | |
1663 | { | |
1664 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1665 | ||
1666 | return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; | |
1667 | } | |
1668 | ||
1669 | static int lio_tpg_check_prod_mode_write_protect( | |
1670 | struct se_portal_group *se_tpg) | |
1671 | { | |
1672 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1673 | ||
1674 | return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; | |
1675 | } | |
1676 | ||
1677 | static void lio_tpg_release_fabric_acl( | |
1678 | struct se_portal_group *se_tpg, | |
1679 | struct se_node_acl *se_acl) | |
1680 | { | |
1681 | struct iscsi_node_acl *acl = container_of(se_acl, | |
1682 | struct iscsi_node_acl, se_node_acl); | |
1683 | kfree(acl); | |
1684 | } | |
1685 | ||
1686 | /* | |
1687 | * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. | |
1688 | * | |
1689 | * Also, this function calls iscsit_inc_session_usage_count() on the | |
1690 | * struct iscsi_session in question. | |
1691 | */ | |
1692 | static int lio_tpg_shutdown_session(struct se_session *se_sess) | |
1693 | { | |
1694 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1695 | ||
1696 | spin_lock(&sess->conn_lock); | |
1697 | if (atomic_read(&sess->session_fall_back_to_erl0) || | |
1698 | atomic_read(&sess->session_logout) || | |
1699 | (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { | |
1700 | spin_unlock(&sess->conn_lock); | |
1701 | return 0; | |
1702 | } | |
1703 | atomic_set(&sess->session_reinstatement, 1); | |
1704 | spin_unlock(&sess->conn_lock); | |
1705 | ||
1706 | iscsit_inc_session_usage_count(sess); | |
1707 | iscsit_stop_time2retain_timer(sess); | |
1708 | ||
1709 | return 1; | |
1710 | } | |
1711 | ||
1712 | /* | |
1713 | * Calls iscsit_dec_session_usage_count() as inverse of | |
1714 | * lio_tpg_shutdown_session() | |
1715 | */ | |
1716 | static void lio_tpg_close_session(struct se_session *se_sess) | |
1717 | { | |
1718 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1719 | /* | |
1720 | * If the iSCSI Session for the iSCSI Initiator Node exists, | |
1721 | * forcefully shutdown the iSCSI NEXUS. | |
1722 | */ | |
1723 | iscsit_stop_session(sess, 1, 1); | |
1724 | iscsit_dec_session_usage_count(sess); | |
1725 | iscsit_close_session(sess); | |
1726 | } | |
1727 | ||
1728 | static void lio_tpg_stop_session( | |
1729 | struct se_session *se_sess, | |
1730 | int sess_sleep, | |
1731 | int conn_sleep) | |
1732 | { | |
1733 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1734 | ||
1735 | iscsit_stop_session(sess, sess_sleep, conn_sleep); | |
1736 | } | |
1737 | ||
1738 | static void lio_tpg_fall_back_to_erl0(struct se_session *se_sess) | |
1739 | { | |
1740 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1741 | ||
1742 | iscsit_fall_back_to_erl0(sess); | |
1743 | } | |
1744 | ||
1745 | static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) | |
1746 | { | |
1747 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1748 | ||
1749 | return tpg->tpg_tiqn->tiqn_index; | |
1750 | } | |
1751 | ||
1752 | static void lio_set_default_node_attributes(struct se_node_acl *se_acl) | |
1753 | { | |
1754 | struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, | |
1755 | se_node_acl); | |
1756 | ||
1757 | ISCSI_NODE_ATTRIB(acl)->nacl = acl; | |
1758 | iscsit_set_default_node_attribues(acl); | |
1759 | } | |
1760 | ||
1761 | static void lio_release_cmd(struct se_cmd *se_cmd) | |
1762 | { | |
1763 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1764 | ||
1765 | iscsit_release_cmd(cmd); | |
1766 | } | |
1767 | ||
1768 | /* End functions for target_core_fabric_ops */ | |
1769 | ||
1770 | int iscsi_target_register_configfs(void) | |
1771 | { | |
1772 | struct target_fabric_configfs *fabric; | |
1773 | int ret; | |
1774 | ||
1775 | lio_target_fabric_configfs = NULL; | |
1776 | fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); | |
1777 | if (IS_ERR(fabric)) { | |
1778 | pr_err("target_fabric_configfs_init() for" | |
1779 | " LIO-Target failed!\n"); | |
1780 | return PTR_ERR(fabric); | |
1781 | } | |
1782 | /* | |
1783 | * Setup the fabric API of function pointers used by target_core_mod.. | |
1784 | */ | |
1785 | fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; | |
1786 | fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; | |
1787 | fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; | |
1788 | fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; | |
1789 | fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; | |
1790 | fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; | |
1791 | fabric->tf_ops.tpg_get_pr_transport_id_len = | |
1792 | &iscsi_get_pr_transport_id_len; | |
1793 | fabric->tf_ops.tpg_parse_pr_out_transport_id = | |
1794 | &iscsi_parse_pr_out_transport_id; | |
1795 | fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; | |
1796 | fabric->tf_ops.tpg_check_demo_mode_cache = | |
1797 | &lio_tpg_check_demo_mode_cache; | |
1798 | fabric->tf_ops.tpg_check_demo_mode_write_protect = | |
1799 | &lio_tpg_check_demo_mode_write_protect; | |
1800 | fabric->tf_ops.tpg_check_prod_mode_write_protect = | |
1801 | &lio_tpg_check_prod_mode_write_protect; | |
1802 | fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; | |
1803 | fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; | |
1804 | fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; | |
1805 | fabric->tf_ops.release_cmd = &lio_release_cmd; | |
1806 | fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; | |
1807 | fabric->tf_ops.close_session = &lio_tpg_close_session; | |
1808 | fabric->tf_ops.stop_session = &lio_tpg_stop_session; | |
1809 | fabric->tf_ops.fall_back_to_erl0 = &lio_tpg_fall_back_to_erl0; | |
1810 | fabric->tf_ops.sess_logged_in = &lio_sess_logged_in; | |
1811 | fabric->tf_ops.sess_get_index = &lio_sess_get_index; | |
1812 | fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; | |
1813 | fabric->tf_ops.write_pending = &lio_write_pending; | |
1814 | fabric->tf_ops.write_pending_status = &lio_write_pending_status; | |
1815 | fabric->tf_ops.set_default_node_attributes = | |
1816 | &lio_set_default_node_attributes; | |
1817 | fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; | |
1818 | fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; | |
1819 | fabric->tf_ops.queue_data_in = &lio_queue_data_in; | |
1820 | fabric->tf_ops.queue_status = &lio_queue_status; | |
1821 | fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; | |
1822 | fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; | |
1823 | fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; | |
1824 | fabric->tf_ops.is_state_remove = &iscsi_is_state_remove; | |
1825 | /* | |
1826 | * Setup function pointers for generic logic in target_core_fabric_configfs.c | |
1827 | */ | |
1828 | fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; | |
1829 | fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; | |
1830 | fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; | |
1831 | fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; | |
1832 | fabric->tf_ops.fabric_post_link = NULL; | |
1833 | fabric->tf_ops.fabric_pre_unlink = NULL; | |
1834 | fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; | |
1835 | fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; | |
1836 | fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; | |
1837 | fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; | |
1838 | /* | |
1839 | * Setup default attribute lists for various fabric->tf_cit_tmpl | |
1840 | * sturct config_item_type's | |
1841 | */ | |
1842 | TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; | |
1843 | TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; | |
1844 | TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; | |
1845 | TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; | |
1846 | TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; | |
1847 | TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; | |
1848 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; | |
1849 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; | |
1850 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; | |
1851 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; | |
1852 | ||
1853 | ret = target_fabric_configfs_register(fabric); | |
1854 | if (ret < 0) { | |
1855 | pr_err("target_fabric_configfs_register() for" | |
1856 | " LIO-Target failed!\n"); | |
1857 | target_fabric_configfs_free(fabric); | |
1858 | return ret; | |
1859 | } | |
1860 | ||
1861 | lio_target_fabric_configfs = fabric; | |
1862 | pr_debug("LIO_TARGET[0] - Set fabric ->" | |
1863 | " lio_target_fabric_configfs\n"); | |
1864 | return 0; | |
1865 | } | |
1866 | ||
1867 | ||
1868 | void iscsi_target_deregister_configfs(void) | |
1869 | { | |
1870 | if (!lio_target_fabric_configfs) | |
1871 | return; | |
1872 | /* | |
1873 | * Shutdown discovery sessions and disable discovery TPG | |
1874 | */ | |
1875 | if (iscsit_global->discovery_tpg) | |
1876 | iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); | |
1877 | ||
1878 | target_fabric_configfs_deregister(lio_target_fabric_configfs); | |
1879 | lio_target_fabric_configfs = NULL; | |
1880 | pr_debug("LIO_TARGET[0] - Cleared" | |
1881 | " lio_target_fabric_configfs\n"); | |
1882 | } |