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e48354ce NB |
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> | |
c53181af | 23 | #include <linux/export.h> |
e48354ce NB |
24 | #include <target/target_core_base.h> |
25 | #include <target/target_core_transport.h> | |
26 | #include <target/target_core_fabric_ops.h> | |
27 | #include <target/target_core_fabric_configfs.h> | |
28 | #include <target/target_core_fabric_lib.h> | |
29 | #include <target/target_core_device.h> | |
30 | #include <target/target_core_tpg.h> | |
31 | #include <target/target_core_configfs.h> | |
32 | #include <target/configfs_macros.h> | |
33 | ||
34 | #include "iscsi_target_core.h" | |
35 | #include "iscsi_target_parameters.h" | |
36 | #include "iscsi_target_device.h" | |
37 | #include "iscsi_target_erl0.h" | |
38 | #include "iscsi_target_nodeattrib.h" | |
39 | #include "iscsi_target_tpg.h" | |
40 | #include "iscsi_target_util.h" | |
41 | #include "iscsi_target.h" | |
42 | #include "iscsi_target_stat.h" | |
43 | #include "iscsi_target_configfs.h" | |
44 | ||
45 | struct target_fabric_configfs *lio_target_fabric_configfs; | |
46 | ||
47 | struct lio_target_configfs_attribute { | |
48 | struct configfs_attribute attr; | |
49 | ssize_t (*show)(void *, char *); | |
50 | ssize_t (*store)(void *, const char *, size_t); | |
51 | }; | |
52 | ||
53 | struct iscsi_portal_group *lio_get_tpg_from_tpg_item( | |
54 | struct config_item *item, | |
55 | struct iscsi_tiqn **tiqn_out) | |
56 | { | |
57 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
58 | struct se_portal_group, tpg_group); | |
59 | struct iscsi_portal_group *tpg = | |
60 | (struct iscsi_portal_group *)se_tpg->se_tpg_fabric_ptr; | |
61 | int ret; | |
62 | ||
63 | if (!tpg) { | |
64 | pr_err("Unable to locate struct iscsi_portal_group " | |
65 | "pointer\n"); | |
66 | return NULL; | |
67 | } | |
68 | ret = iscsit_get_tpg(tpg); | |
69 | if (ret < 0) | |
70 | return NULL; | |
71 | ||
72 | *tiqn_out = tpg->tpg_tiqn; | |
73 | return tpg; | |
74 | } | |
75 | ||
76 | /* Start items for lio_target_portal_cit */ | |
77 | ||
78 | static ssize_t lio_target_np_show_sctp( | |
79 | struct se_tpg_np *se_tpg_np, | |
80 | char *page) | |
81 | { | |
82 | struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, | |
83 | struct iscsi_tpg_np, se_tpg_np); | |
84 | struct iscsi_tpg_np *tpg_np_sctp; | |
85 | ssize_t rb; | |
86 | ||
87 | tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); | |
88 | if (tpg_np_sctp) | |
89 | rb = sprintf(page, "1\n"); | |
90 | else | |
91 | rb = sprintf(page, "0\n"); | |
92 | ||
93 | return rb; | |
94 | } | |
95 | ||
96 | static ssize_t lio_target_np_store_sctp( | |
97 | struct se_tpg_np *se_tpg_np, | |
98 | const char *page, | |
99 | size_t count) | |
100 | { | |
101 | struct iscsi_np *np; | |
102 | struct iscsi_portal_group *tpg; | |
103 | struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, | |
104 | struct iscsi_tpg_np, se_tpg_np); | |
105 | struct iscsi_tpg_np *tpg_np_sctp = NULL; | |
106 | char *endptr; | |
107 | u32 op; | |
108 | int ret; | |
109 | ||
110 | op = simple_strtoul(page, &endptr, 0); | |
111 | if ((op != 1) && (op != 0)) { | |
112 | pr_err("Illegal value for tpg_enable: %u\n", op); | |
113 | return -EINVAL; | |
114 | } | |
115 | np = tpg_np->tpg_np; | |
116 | if (!np) { | |
117 | pr_err("Unable to locate struct iscsi_np from" | |
118 | " struct iscsi_tpg_np\n"); | |
119 | return -EINVAL; | |
120 | } | |
121 | ||
122 | tpg = tpg_np->tpg; | |
123 | if (iscsit_get_tpg(tpg) < 0) | |
124 | return -EINVAL; | |
125 | ||
126 | if (op) { | |
127 | /* | |
128 | * Use existing np->np_sockaddr for SCTP network portal reference | |
129 | */ | |
130 | tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, | |
131 | np->np_ip, tpg_np, ISCSI_SCTP_TCP); | |
132 | if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) | |
133 | goto out; | |
134 | } else { | |
135 | tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); | |
136 | if (!tpg_np_sctp) | |
137 | goto out; | |
138 | ||
139 | ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); | |
140 | if (ret < 0) | |
141 | goto out; | |
142 | } | |
143 | ||
144 | iscsit_put_tpg(tpg); | |
145 | return count; | |
146 | out: | |
147 | iscsit_put_tpg(tpg); | |
148 | return -EINVAL; | |
149 | } | |
150 | ||
151 | TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); | |
152 | ||
153 | static struct configfs_attribute *lio_target_portal_attrs[] = { | |
154 | &lio_target_np_sctp.attr, | |
155 | NULL, | |
156 | }; | |
157 | ||
158 | /* Stop items for lio_target_portal_cit */ | |
159 | ||
160 | /* Start items for lio_target_np_cit */ | |
161 | ||
162 | #define MAX_PORTAL_LEN 256 | |
163 | ||
164 | struct se_tpg_np *lio_target_call_addnptotpg( | |
165 | struct se_portal_group *se_tpg, | |
166 | struct config_group *group, | |
167 | const char *name) | |
168 | { | |
169 | struct iscsi_portal_group *tpg; | |
170 | struct iscsi_tpg_np *tpg_np; | |
171 | char *str, *str2, *ip_str, *port_str; | |
172 | struct __kernel_sockaddr_storage sockaddr; | |
173 | struct sockaddr_in *sock_in; | |
174 | struct sockaddr_in6 *sock_in6; | |
175 | unsigned long port; | |
176 | int ret; | |
177 | char buf[MAX_PORTAL_LEN + 1]; | |
178 | ||
179 | if (strlen(name) > MAX_PORTAL_LEN) { | |
180 | pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", | |
181 | (int)strlen(name), MAX_PORTAL_LEN); | |
182 | return ERR_PTR(-EOVERFLOW); | |
183 | } | |
184 | memset(buf, 0, MAX_PORTAL_LEN + 1); | |
7bbb654e | 185 | snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); |
e48354ce NB |
186 | |
187 | memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); | |
188 | ||
189 | str = strstr(buf, "["); | |
190 | if (str) { | |
191 | const char *end; | |
192 | ||
193 | str2 = strstr(str, "]"); | |
194 | if (!str2) { | |
195 | pr_err("Unable to locate trailing \"]\"" | |
196 | " in IPv6 iSCSI network portal address\n"); | |
197 | return ERR_PTR(-EINVAL); | |
198 | } | |
199 | str++; /* Skip over leading "[" */ | |
200 | *str2 = '\0'; /* Terminate the IPv6 address */ | |
201 | str2++; /* Skip over the "]" */ | |
202 | port_str = strstr(str2, ":"); | |
203 | if (!port_str) { | |
204 | pr_err("Unable to locate \":port\"" | |
205 | " in IPv6 iSCSI network portal address\n"); | |
206 | return ERR_PTR(-EINVAL); | |
207 | } | |
208 | *port_str = '\0'; /* Terminate string for IP */ | |
209 | port_str++; /* Skip over ":" */ | |
210 | ||
211 | ret = strict_strtoul(port_str, 0, &port); | |
212 | if (ret < 0) { | |
213 | pr_err("strict_strtoul() failed for port_str: %d\n", ret); | |
214 | return ERR_PTR(ret); | |
215 | } | |
216 | sock_in6 = (struct sockaddr_in6 *)&sockaddr; | |
217 | sock_in6->sin6_family = AF_INET6; | |
218 | sock_in6->sin6_port = htons((unsigned short)port); | |
219 | ret = in6_pton(str, IPV6_ADDRESS_SPACE, | |
220 | (void *)&sock_in6->sin6_addr.in6_u, -1, &end); | |
221 | if (ret <= 0) { | |
222 | pr_err("in6_pton returned: %d\n", ret); | |
223 | return ERR_PTR(-EINVAL); | |
224 | } | |
225 | } else { | |
226 | str = ip_str = &buf[0]; | |
227 | port_str = strstr(ip_str, ":"); | |
228 | if (!port_str) { | |
229 | pr_err("Unable to locate \":port\"" | |
230 | " in IPv4 iSCSI network portal address\n"); | |
231 | return ERR_PTR(-EINVAL); | |
232 | } | |
233 | *port_str = '\0'; /* Terminate string for IP */ | |
234 | port_str++; /* Skip over ":" */ | |
235 | ||
236 | ret = strict_strtoul(port_str, 0, &port); | |
237 | if (ret < 0) { | |
238 | pr_err("strict_strtoul() failed for port_str: %d\n", ret); | |
239 | return ERR_PTR(ret); | |
240 | } | |
241 | sock_in = (struct sockaddr_in *)&sockaddr; | |
242 | sock_in->sin_family = AF_INET; | |
243 | sock_in->sin_port = htons((unsigned short)port); | |
244 | sock_in->sin_addr.s_addr = in_aton(ip_str); | |
245 | } | |
246 | tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); | |
247 | ret = iscsit_get_tpg(tpg); | |
248 | if (ret < 0) | |
249 | return ERR_PTR(-EINVAL); | |
250 | ||
251 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" | |
252 | " PORTAL: %s\n", | |
253 | config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), | |
254 | tpg->tpgt, name); | |
255 | /* | |
256 | * Assume ISCSI_TCP by default. Other network portals for other | |
257 | * iSCSI fabrics: | |
258 | * | |
259 | * Traditional iSCSI over SCTP (initial support) | |
260 | * iSER/TCP (TODO, hardware available) | |
261 | * iSER/SCTP (TODO, software emulation with osc-iwarp) | |
262 | * iSER/IB (TODO, hardware available) | |
263 | * | |
264 | * can be enabled with atributes under | |
265 | * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ | |
266 | * | |
267 | */ | |
268 | tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, | |
269 | ISCSI_TCP); | |
270 | if (IS_ERR(tpg_np)) { | |
271 | iscsit_put_tpg(tpg); | |
e1750ba2 | 272 | return ERR_CAST(tpg_np); |
e48354ce NB |
273 | } |
274 | pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); | |
275 | ||
276 | iscsit_put_tpg(tpg); | |
277 | return &tpg_np->se_tpg_np; | |
278 | } | |
279 | ||
280 | static void lio_target_call_delnpfromtpg( | |
281 | struct se_tpg_np *se_tpg_np) | |
282 | { | |
283 | struct iscsi_portal_group *tpg; | |
284 | struct iscsi_tpg_np *tpg_np; | |
285 | struct se_portal_group *se_tpg; | |
286 | int ret; | |
287 | ||
288 | tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); | |
289 | tpg = tpg_np->tpg; | |
290 | ret = iscsit_get_tpg(tpg); | |
291 | if (ret < 0) | |
292 | return; | |
293 | ||
294 | se_tpg = &tpg->tpg_se_tpg; | |
295 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" | |
296 | " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), | |
297 | tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); | |
298 | ||
299 | ret = iscsit_tpg_del_network_portal(tpg, tpg_np); | |
300 | if (ret < 0) | |
301 | goto out; | |
302 | ||
303 | pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); | |
304 | out: | |
305 | iscsit_put_tpg(tpg); | |
306 | } | |
307 | ||
308 | /* End items for lio_target_np_cit */ | |
309 | ||
310 | /* Start items for lio_target_nacl_attrib_cit */ | |
311 | ||
312 | #define DEF_NACL_ATTRIB(name) \ | |
313 | static ssize_t iscsi_nacl_attrib_show_##name( \ | |
314 | struct se_node_acl *se_nacl, \ | |
315 | char *page) \ | |
316 | { \ | |
317 | struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ | |
318 | se_node_acl); \ | |
319 | \ | |
320 | return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ | |
321 | } \ | |
322 | \ | |
323 | static ssize_t iscsi_nacl_attrib_store_##name( \ | |
324 | struct se_node_acl *se_nacl, \ | |
325 | const char *page, \ | |
326 | size_t count) \ | |
327 | { \ | |
328 | struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ | |
329 | se_node_acl); \ | |
330 | char *endptr; \ | |
331 | u32 val; \ | |
332 | int ret; \ | |
333 | \ | |
334 | val = simple_strtoul(page, &endptr, 0); \ | |
335 | ret = iscsit_na_##name(nacl, val); \ | |
336 | if (ret < 0) \ | |
337 | return ret; \ | |
338 | \ | |
339 | return count; \ | |
340 | } | |
341 | ||
342 | #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); | |
343 | /* | |
344 | * Define iscsi_node_attrib_s_dataout_timeout | |
345 | */ | |
346 | DEF_NACL_ATTRIB(dataout_timeout); | |
347 | NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); | |
348 | /* | |
349 | * Define iscsi_node_attrib_s_dataout_timeout_retries | |
350 | */ | |
351 | DEF_NACL_ATTRIB(dataout_timeout_retries); | |
352 | NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); | |
353 | /* | |
354 | * Define iscsi_node_attrib_s_default_erl | |
355 | */ | |
356 | DEF_NACL_ATTRIB(default_erl); | |
357 | NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); | |
358 | /* | |
359 | * Define iscsi_node_attrib_s_nopin_timeout | |
360 | */ | |
361 | DEF_NACL_ATTRIB(nopin_timeout); | |
362 | NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); | |
363 | /* | |
364 | * Define iscsi_node_attrib_s_nopin_response_timeout | |
365 | */ | |
366 | DEF_NACL_ATTRIB(nopin_response_timeout); | |
367 | NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); | |
368 | /* | |
369 | * Define iscsi_node_attrib_s_random_datain_pdu_offsets | |
370 | */ | |
371 | DEF_NACL_ATTRIB(random_datain_pdu_offsets); | |
372 | NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); | |
373 | /* | |
374 | * Define iscsi_node_attrib_s_random_datain_seq_offsets | |
375 | */ | |
376 | DEF_NACL_ATTRIB(random_datain_seq_offsets); | |
377 | NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); | |
378 | /* | |
379 | * Define iscsi_node_attrib_s_random_r2t_offsets | |
380 | */ | |
381 | DEF_NACL_ATTRIB(random_r2t_offsets); | |
382 | NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); | |
383 | ||
384 | static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { | |
385 | &iscsi_nacl_attrib_dataout_timeout.attr, | |
386 | &iscsi_nacl_attrib_dataout_timeout_retries.attr, | |
387 | &iscsi_nacl_attrib_default_erl.attr, | |
388 | &iscsi_nacl_attrib_nopin_timeout.attr, | |
389 | &iscsi_nacl_attrib_nopin_response_timeout.attr, | |
390 | &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, | |
391 | &iscsi_nacl_attrib_random_datain_seq_offsets.attr, | |
392 | &iscsi_nacl_attrib_random_r2t_offsets.attr, | |
393 | NULL, | |
394 | }; | |
395 | ||
396 | /* End items for lio_target_nacl_attrib_cit */ | |
397 | ||
398 | /* Start items for lio_target_nacl_auth_cit */ | |
399 | ||
400 | #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ | |
401 | static ssize_t __iscsi_##prefix##_show_##name( \ | |
402 | struct iscsi_node_acl *nacl, \ | |
403 | char *page) \ | |
404 | { \ | |
405 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
406 | \ | |
407 | if (!capable(CAP_SYS_ADMIN)) \ | |
408 | return -EPERM; \ | |
409 | return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ | |
410 | } \ | |
411 | \ | |
412 | static ssize_t __iscsi_##prefix##_store_##name( \ | |
413 | struct iscsi_node_acl *nacl, \ | |
414 | const char *page, \ | |
415 | size_t count) \ | |
416 | { \ | |
417 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
418 | \ | |
419 | if (!capable(CAP_SYS_ADMIN)) \ | |
420 | return -EPERM; \ | |
421 | \ | |
422 | snprintf(auth->name, PAGE_SIZE, "%s", page); \ | |
423 | if (!strncmp("NULL", auth->name, 4)) \ | |
424 | auth->naf_flags &= ~flags; \ | |
425 | else \ | |
426 | auth->naf_flags |= flags; \ | |
427 | \ | |
428 | if ((auth->naf_flags & NAF_USERID_IN_SET) && \ | |
429 | (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ | |
430 | auth->authenticate_target = 1; \ | |
431 | else \ | |
432 | auth->authenticate_target = 0; \ | |
433 | \ | |
434 | return count; \ | |
435 | } | |
436 | ||
437 | #define __DEF_NACL_AUTH_INT(prefix, name) \ | |
438 | static ssize_t __iscsi_##prefix##_show_##name( \ | |
439 | struct iscsi_node_acl *nacl, \ | |
440 | char *page) \ | |
441 | { \ | |
442 | struct iscsi_node_auth *auth = &nacl->node_auth; \ | |
443 | \ | |
444 | if (!capable(CAP_SYS_ADMIN)) \ | |
445 | return -EPERM; \ | |
446 | \ | |
447 | return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ | |
448 | } | |
449 | ||
450 | #define DEF_NACL_AUTH_STR(name, flags) \ | |
451 | __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ | |
452 | static ssize_t iscsi_nacl_auth_show_##name( \ | |
453 | struct se_node_acl *nacl, \ | |
454 | char *page) \ | |
455 | { \ | |
456 | return __iscsi_nacl_auth_show_##name(container_of(nacl, \ | |
457 | struct iscsi_node_acl, se_node_acl), page); \ | |
458 | } \ | |
459 | static ssize_t iscsi_nacl_auth_store_##name( \ | |
460 | struct se_node_acl *nacl, \ | |
461 | const char *page, \ | |
462 | size_t count) \ | |
463 | { \ | |
464 | return __iscsi_nacl_auth_store_##name(container_of(nacl, \ | |
465 | struct iscsi_node_acl, se_node_acl), page, count); \ | |
466 | } | |
467 | ||
468 | #define DEF_NACL_AUTH_INT(name) \ | |
469 | __DEF_NACL_AUTH_INT(nacl_auth, name) \ | |
470 | static ssize_t iscsi_nacl_auth_show_##name( \ | |
471 | struct se_node_acl *nacl, \ | |
472 | char *page) \ | |
473 | { \ | |
474 | return __iscsi_nacl_auth_show_##name(container_of(nacl, \ | |
475 | struct iscsi_node_acl, se_node_acl), page); \ | |
476 | } | |
477 | ||
478 | #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); | |
479 | #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); | |
480 | ||
481 | /* | |
482 | * One-way authentication userid | |
483 | */ | |
484 | DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); | |
485 | AUTH_ATTR(userid, S_IRUGO | S_IWUSR); | |
486 | /* | |
487 | * One-way authentication password | |
488 | */ | |
489 | DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); | |
490 | AUTH_ATTR(password, S_IRUGO | S_IWUSR); | |
491 | /* | |
492 | * Enforce mutual authentication | |
493 | */ | |
494 | DEF_NACL_AUTH_INT(authenticate_target); | |
495 | AUTH_ATTR_RO(authenticate_target); | |
496 | /* | |
497 | * Mutual authentication userid | |
498 | */ | |
499 | DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); | |
500 | AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); | |
501 | /* | |
502 | * Mutual authentication password | |
503 | */ | |
504 | DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); | |
505 | AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); | |
506 | ||
507 | static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { | |
508 | &iscsi_nacl_auth_userid.attr, | |
509 | &iscsi_nacl_auth_password.attr, | |
510 | &iscsi_nacl_auth_authenticate_target.attr, | |
511 | &iscsi_nacl_auth_userid_mutual.attr, | |
512 | &iscsi_nacl_auth_password_mutual.attr, | |
513 | NULL, | |
514 | }; | |
515 | ||
516 | /* End items for lio_target_nacl_auth_cit */ | |
517 | ||
518 | /* Start items for lio_target_nacl_param_cit */ | |
519 | ||
520 | #define DEF_NACL_PARAM(name) \ | |
521 | static ssize_t iscsi_nacl_param_show_##name( \ | |
522 | struct se_node_acl *se_nacl, \ | |
523 | char *page) \ | |
524 | { \ | |
525 | struct iscsi_session *sess; \ | |
526 | struct se_session *se_sess; \ | |
527 | ssize_t rb; \ | |
528 | \ | |
529 | spin_lock_bh(&se_nacl->nacl_sess_lock); \ | |
530 | se_sess = se_nacl->nacl_sess; \ | |
531 | if (!se_sess) { \ | |
532 | rb = snprintf(page, PAGE_SIZE, \ | |
533 | "No Active iSCSI Session\n"); \ | |
534 | } else { \ | |
535 | sess = se_sess->fabric_sess_ptr; \ | |
536 | rb = snprintf(page, PAGE_SIZE, "%u\n", \ | |
537 | (u32)sess->sess_ops->name); \ | |
538 | } \ | |
539 | spin_unlock_bh(&se_nacl->nacl_sess_lock); \ | |
540 | \ | |
541 | return rb; \ | |
542 | } | |
543 | ||
544 | #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); | |
545 | ||
546 | DEF_NACL_PARAM(MaxConnections); | |
547 | NACL_PARAM_ATTR(MaxConnections); | |
548 | ||
549 | DEF_NACL_PARAM(InitialR2T); | |
550 | NACL_PARAM_ATTR(InitialR2T); | |
551 | ||
552 | DEF_NACL_PARAM(ImmediateData); | |
553 | NACL_PARAM_ATTR(ImmediateData); | |
554 | ||
555 | DEF_NACL_PARAM(MaxBurstLength); | |
556 | NACL_PARAM_ATTR(MaxBurstLength); | |
557 | ||
558 | DEF_NACL_PARAM(FirstBurstLength); | |
559 | NACL_PARAM_ATTR(FirstBurstLength); | |
560 | ||
561 | DEF_NACL_PARAM(DefaultTime2Wait); | |
562 | NACL_PARAM_ATTR(DefaultTime2Wait); | |
563 | ||
564 | DEF_NACL_PARAM(DefaultTime2Retain); | |
565 | NACL_PARAM_ATTR(DefaultTime2Retain); | |
566 | ||
567 | DEF_NACL_PARAM(MaxOutstandingR2T); | |
568 | NACL_PARAM_ATTR(MaxOutstandingR2T); | |
569 | ||
570 | DEF_NACL_PARAM(DataPDUInOrder); | |
571 | NACL_PARAM_ATTR(DataPDUInOrder); | |
572 | ||
573 | DEF_NACL_PARAM(DataSequenceInOrder); | |
574 | NACL_PARAM_ATTR(DataSequenceInOrder); | |
575 | ||
576 | DEF_NACL_PARAM(ErrorRecoveryLevel); | |
577 | NACL_PARAM_ATTR(ErrorRecoveryLevel); | |
578 | ||
579 | static struct configfs_attribute *lio_target_nacl_param_attrs[] = { | |
580 | &iscsi_nacl_param_MaxConnections.attr, | |
581 | &iscsi_nacl_param_InitialR2T.attr, | |
582 | &iscsi_nacl_param_ImmediateData.attr, | |
583 | &iscsi_nacl_param_MaxBurstLength.attr, | |
584 | &iscsi_nacl_param_FirstBurstLength.attr, | |
585 | &iscsi_nacl_param_DefaultTime2Wait.attr, | |
586 | &iscsi_nacl_param_DefaultTime2Retain.attr, | |
587 | &iscsi_nacl_param_MaxOutstandingR2T.attr, | |
588 | &iscsi_nacl_param_DataPDUInOrder.attr, | |
589 | &iscsi_nacl_param_DataSequenceInOrder.attr, | |
590 | &iscsi_nacl_param_ErrorRecoveryLevel.attr, | |
591 | NULL, | |
592 | }; | |
593 | ||
594 | /* End items for lio_target_nacl_param_cit */ | |
595 | ||
596 | /* Start items for lio_target_acl_cit */ | |
597 | ||
598 | static ssize_t lio_target_nacl_show_info( | |
599 | struct se_node_acl *se_nacl, | |
600 | char *page) | |
601 | { | |
602 | struct iscsi_session *sess; | |
603 | struct iscsi_conn *conn; | |
604 | struct se_session *se_sess; | |
605 | ssize_t rb = 0; | |
606 | ||
607 | spin_lock_bh(&se_nacl->nacl_sess_lock); | |
608 | se_sess = se_nacl->nacl_sess; | |
609 | if (!se_sess) { | |
610 | rb += sprintf(page+rb, "No active iSCSI Session for Initiator" | |
611 | " Endpoint: %s\n", se_nacl->initiatorname); | |
612 | } else { | |
613 | sess = se_sess->fabric_sess_ptr; | |
614 | ||
615 | if (sess->sess_ops->InitiatorName) | |
616 | rb += sprintf(page+rb, "InitiatorName: %s\n", | |
617 | sess->sess_ops->InitiatorName); | |
618 | if (sess->sess_ops->InitiatorAlias) | |
619 | rb += sprintf(page+rb, "InitiatorAlias: %s\n", | |
620 | sess->sess_ops->InitiatorAlias); | |
621 | ||
622 | rb += sprintf(page+rb, "LIO Session ID: %u " | |
623 | "ISID: 0x%02x %02x %02x %02x %02x %02x " | |
624 | "TSIH: %hu ", sess->sid, | |
625 | sess->isid[0], sess->isid[1], sess->isid[2], | |
626 | sess->isid[3], sess->isid[4], sess->isid[5], | |
627 | sess->tsih); | |
628 | rb += sprintf(page+rb, "SessionType: %s\n", | |
629 | (sess->sess_ops->SessionType) ? | |
630 | "Discovery" : "Normal"); | |
631 | rb += sprintf(page+rb, "Session State: "); | |
632 | switch (sess->session_state) { | |
633 | case TARG_SESS_STATE_FREE: | |
634 | rb += sprintf(page+rb, "TARG_SESS_FREE\n"); | |
635 | break; | |
636 | case TARG_SESS_STATE_ACTIVE: | |
637 | rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); | |
638 | break; | |
639 | case TARG_SESS_STATE_LOGGED_IN: | |
640 | rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); | |
641 | break; | |
642 | case TARG_SESS_STATE_FAILED: | |
643 | rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); | |
644 | break; | |
645 | case TARG_SESS_STATE_IN_CONTINUE: | |
646 | rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); | |
647 | break; | |
648 | default: | |
649 | rb += sprintf(page+rb, "ERROR: Unknown Session" | |
650 | " State!\n"); | |
651 | break; | |
652 | } | |
653 | ||
654 | rb += sprintf(page+rb, "---------------------[iSCSI Session" | |
655 | " Values]-----------------------\n"); | |
656 | rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" | |
657 | " : MaxCmdSN : ITT : TTT\n"); | |
658 | rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" | |
659 | " 0x%08x 0x%08x\n", | |
660 | sess->cmdsn_window, | |
661 | (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, | |
662 | sess->exp_cmd_sn, sess->max_cmd_sn, | |
663 | sess->init_task_tag, sess->targ_xfer_tag); | |
664 | rb += sprintf(page+rb, "----------------------[iSCSI" | |
665 | " Connections]-------------------------\n"); | |
666 | ||
667 | spin_lock(&sess->conn_lock); | |
668 | list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { | |
669 | rb += sprintf(page+rb, "CID: %hu Connection" | |
670 | " State: ", conn->cid); | |
671 | switch (conn->conn_state) { | |
672 | case TARG_CONN_STATE_FREE: | |
673 | rb += sprintf(page+rb, | |
674 | "TARG_CONN_STATE_FREE\n"); | |
675 | break; | |
676 | case TARG_CONN_STATE_XPT_UP: | |
677 | rb += sprintf(page+rb, | |
678 | "TARG_CONN_STATE_XPT_UP\n"); | |
679 | break; | |
680 | case TARG_CONN_STATE_IN_LOGIN: | |
681 | rb += sprintf(page+rb, | |
682 | "TARG_CONN_STATE_IN_LOGIN\n"); | |
683 | break; | |
684 | case TARG_CONN_STATE_LOGGED_IN: | |
685 | rb += sprintf(page+rb, | |
686 | "TARG_CONN_STATE_LOGGED_IN\n"); | |
687 | break; | |
688 | case TARG_CONN_STATE_IN_LOGOUT: | |
689 | rb += sprintf(page+rb, | |
690 | "TARG_CONN_STATE_IN_LOGOUT\n"); | |
691 | break; | |
692 | case TARG_CONN_STATE_LOGOUT_REQUESTED: | |
693 | rb += sprintf(page+rb, | |
694 | "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); | |
695 | break; | |
696 | case TARG_CONN_STATE_CLEANUP_WAIT: | |
697 | rb += sprintf(page+rb, | |
698 | "TARG_CONN_STATE_CLEANUP_WAIT\n"); | |
699 | break; | |
700 | default: | |
701 | rb += sprintf(page+rb, | |
702 | "ERROR: Unknown Connection State!\n"); | |
703 | break; | |
704 | } | |
705 | ||
706 | rb += sprintf(page+rb, " Address %s %s", conn->login_ip, | |
707 | (conn->network_transport == ISCSI_TCP) ? | |
708 | "TCP" : "SCTP"); | |
709 | rb += sprintf(page+rb, " StatSN: 0x%08x\n", | |
710 | conn->stat_sn); | |
711 | } | |
712 | spin_unlock(&sess->conn_lock); | |
713 | } | |
714 | spin_unlock_bh(&se_nacl->nacl_sess_lock); | |
715 | ||
716 | return rb; | |
717 | } | |
718 | ||
719 | TF_NACL_BASE_ATTR_RO(lio_target, info); | |
720 | ||
721 | static ssize_t lio_target_nacl_show_cmdsn_depth( | |
722 | struct se_node_acl *se_nacl, | |
723 | char *page) | |
724 | { | |
725 | return sprintf(page, "%u\n", se_nacl->queue_depth); | |
726 | } | |
727 | ||
728 | static ssize_t lio_target_nacl_store_cmdsn_depth( | |
729 | struct se_node_acl *se_nacl, | |
730 | const char *page, | |
731 | size_t count) | |
732 | { | |
733 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
734 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
735 | struct iscsi_portal_group, tpg_se_tpg); | |
736 | struct config_item *acl_ci, *tpg_ci, *wwn_ci; | |
737 | char *endptr; | |
738 | u32 cmdsn_depth = 0; | |
739 | int ret; | |
740 | ||
741 | cmdsn_depth = simple_strtoul(page, &endptr, 0); | |
742 | if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { | |
743 | pr_err("Passed cmdsn_depth: %u exceeds" | |
744 | " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, | |
745 | TA_DEFAULT_CMDSN_DEPTH_MAX); | |
746 | return -EINVAL; | |
747 | } | |
748 | acl_ci = &se_nacl->acl_group.cg_item; | |
749 | if (!acl_ci) { | |
750 | pr_err("Unable to locatel acl_ci\n"); | |
751 | return -EINVAL; | |
752 | } | |
753 | tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; | |
754 | if (!tpg_ci) { | |
755 | pr_err("Unable to locate tpg_ci\n"); | |
756 | return -EINVAL; | |
757 | } | |
758 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
759 | if (!wwn_ci) { | |
760 | pr_err("Unable to locate config_item wwn_ci\n"); | |
761 | return -EINVAL; | |
762 | } | |
763 | ||
764 | if (iscsit_get_tpg(tpg) < 0) | |
765 | return -EINVAL; | |
766 | /* | |
767 | * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 | |
768 | */ | |
769 | ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, | |
770 | config_item_name(acl_ci), cmdsn_depth, 1); | |
771 | ||
772 | pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" | |
773 | "InitiatorName: %s\n", config_item_name(wwn_ci), | |
774 | config_item_name(tpg_ci), cmdsn_depth, | |
775 | config_item_name(acl_ci)); | |
776 | ||
777 | iscsit_put_tpg(tpg); | |
778 | return (!ret) ? count : (ssize_t)ret; | |
779 | } | |
780 | ||
781 | TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); | |
782 | ||
783 | static struct configfs_attribute *lio_target_initiator_attrs[] = { | |
784 | &lio_target_nacl_info.attr, | |
785 | &lio_target_nacl_cmdsn_depth.attr, | |
786 | NULL, | |
787 | }; | |
788 | ||
789 | static struct se_node_acl *lio_tpg_alloc_fabric_acl( | |
790 | struct se_portal_group *se_tpg) | |
791 | { | |
792 | struct iscsi_node_acl *acl; | |
793 | ||
794 | acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); | |
795 | if (!acl) { | |
796 | pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); | |
797 | return NULL; | |
798 | } | |
799 | ||
800 | return &acl->se_node_acl; | |
801 | } | |
802 | ||
803 | static struct se_node_acl *lio_target_make_nodeacl( | |
804 | struct se_portal_group *se_tpg, | |
805 | struct config_group *group, | |
806 | const char *name) | |
807 | { | |
808 | struct config_group *stats_cg; | |
809 | struct iscsi_node_acl *acl; | |
810 | struct se_node_acl *se_nacl_new, *se_nacl; | |
811 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
812 | struct iscsi_portal_group, tpg_se_tpg); | |
813 | u32 cmdsn_depth; | |
814 | ||
815 | se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); | |
816 | if (!se_nacl_new) | |
817 | return ERR_PTR(-ENOMEM); | |
818 | ||
819 | acl = container_of(se_nacl_new, struct iscsi_node_acl, | |
820 | se_node_acl); | |
821 | ||
822 | cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; | |
823 | /* | |
824 | * se_nacl_new may be released by core_tpg_add_initiator_node_acl() | |
825 | * when converting a NdoeACL from demo mode -> explict | |
826 | */ | |
827 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, | |
828 | name, cmdsn_depth); | |
829 | if (IS_ERR(se_nacl)) | |
830 | return se_nacl; | |
831 | ||
832 | stats_cg = &acl->se_node_acl.acl_fabric_stat_group; | |
833 | ||
834 | stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
835 | GFP_KERNEL); | |
836 | if (!stats_cg->default_groups) { | |
837 | pr_err("Unable to allocate memory for" | |
838 | " stats_cg->default_groups\n"); | |
839 | core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); | |
840 | kfree(acl); | |
841 | return ERR_PTR(-ENOMEM); | |
842 | } | |
843 | ||
844 | stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; | |
845 | stats_cg->default_groups[1] = NULL; | |
846 | config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, | |
847 | "iscsi_sess_stats", &iscsi_stat_sess_cit); | |
848 | ||
849 | return se_nacl; | |
850 | } | |
851 | ||
852 | static void lio_target_drop_nodeacl( | |
853 | struct se_node_acl *se_nacl) | |
854 | { | |
855 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
856 | struct iscsi_node_acl *acl = container_of(se_nacl, | |
857 | struct iscsi_node_acl, se_node_acl); | |
858 | struct config_item *df_item; | |
859 | struct config_group *stats_cg; | |
860 | int i; | |
861 | ||
862 | stats_cg = &acl->se_node_acl.acl_fabric_stat_group; | |
863 | for (i = 0; stats_cg->default_groups[i]; i++) { | |
864 | df_item = &stats_cg->default_groups[i]->cg_item; | |
865 | stats_cg->default_groups[i] = NULL; | |
866 | config_item_put(df_item); | |
867 | } | |
868 | kfree(stats_cg->default_groups); | |
869 | ||
870 | core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); | |
871 | kfree(acl); | |
872 | } | |
873 | ||
874 | /* End items for lio_target_acl_cit */ | |
875 | ||
876 | /* Start items for lio_target_tpg_attrib_cit */ | |
877 | ||
878 | #define DEF_TPG_ATTRIB(name) \ | |
879 | \ | |
880 | static ssize_t iscsi_tpg_attrib_show_##name( \ | |
881 | struct se_portal_group *se_tpg, \ | |
882 | char *page) \ | |
883 | { \ | |
884 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
885 | struct iscsi_portal_group, tpg_se_tpg); \ | |
886 | ssize_t rb; \ | |
887 | \ | |
888 | if (iscsit_get_tpg(tpg) < 0) \ | |
889 | return -EINVAL; \ | |
890 | \ | |
891 | rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ | |
892 | iscsit_put_tpg(tpg); \ | |
893 | return rb; \ | |
894 | } \ | |
895 | \ | |
896 | static ssize_t iscsi_tpg_attrib_store_##name( \ | |
897 | struct se_portal_group *se_tpg, \ | |
898 | const char *page, \ | |
899 | size_t count) \ | |
900 | { \ | |
901 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
902 | struct iscsi_portal_group, tpg_se_tpg); \ | |
903 | char *endptr; \ | |
904 | u32 val; \ | |
905 | int ret; \ | |
906 | \ | |
907 | if (iscsit_get_tpg(tpg) < 0) \ | |
908 | return -EINVAL; \ | |
909 | \ | |
910 | val = simple_strtoul(page, &endptr, 0); \ | |
911 | ret = iscsit_ta_##name(tpg, val); \ | |
912 | if (ret < 0) \ | |
913 | goto out; \ | |
914 | \ | |
915 | iscsit_put_tpg(tpg); \ | |
916 | return count; \ | |
917 | out: \ | |
918 | iscsit_put_tpg(tpg); \ | |
919 | return ret; \ | |
920 | } | |
921 | ||
922 | #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); | |
923 | ||
924 | /* | |
925 | * Define iscsi_tpg_attrib_s_authentication | |
926 | */ | |
927 | DEF_TPG_ATTRIB(authentication); | |
928 | TPG_ATTR(authentication, S_IRUGO | S_IWUSR); | |
929 | /* | |
930 | * Define iscsi_tpg_attrib_s_login_timeout | |
931 | */ | |
932 | DEF_TPG_ATTRIB(login_timeout); | |
933 | TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); | |
934 | /* | |
935 | * Define iscsi_tpg_attrib_s_netif_timeout | |
936 | */ | |
937 | DEF_TPG_ATTRIB(netif_timeout); | |
938 | TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); | |
939 | /* | |
940 | * Define iscsi_tpg_attrib_s_generate_node_acls | |
941 | */ | |
942 | DEF_TPG_ATTRIB(generate_node_acls); | |
943 | TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
944 | /* | |
945 | * Define iscsi_tpg_attrib_s_default_cmdsn_depth | |
946 | */ | |
947 | DEF_TPG_ATTRIB(default_cmdsn_depth); | |
948 | TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); | |
949 | /* | |
950 | Define iscsi_tpg_attrib_s_cache_dynamic_acls | |
951 | */ | |
952 | DEF_TPG_ATTRIB(cache_dynamic_acls); | |
953 | TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
954 | /* | |
955 | * Define iscsi_tpg_attrib_s_demo_mode_write_protect | |
956 | */ | |
957 | DEF_TPG_ATTRIB(demo_mode_write_protect); | |
958 | TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
959 | /* | |
960 | * Define iscsi_tpg_attrib_s_prod_mode_write_protect | |
961 | */ | |
962 | DEF_TPG_ATTRIB(prod_mode_write_protect); | |
963 | TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
964 | ||
965 | static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { | |
966 | &iscsi_tpg_attrib_authentication.attr, | |
967 | &iscsi_tpg_attrib_login_timeout.attr, | |
968 | &iscsi_tpg_attrib_netif_timeout.attr, | |
969 | &iscsi_tpg_attrib_generate_node_acls.attr, | |
970 | &iscsi_tpg_attrib_default_cmdsn_depth.attr, | |
971 | &iscsi_tpg_attrib_cache_dynamic_acls.attr, | |
972 | &iscsi_tpg_attrib_demo_mode_write_protect.attr, | |
973 | &iscsi_tpg_attrib_prod_mode_write_protect.attr, | |
974 | NULL, | |
975 | }; | |
976 | ||
977 | /* End items for lio_target_tpg_attrib_cit */ | |
978 | ||
979 | /* Start items for lio_target_tpg_param_cit */ | |
980 | ||
981 | #define DEF_TPG_PARAM(name) \ | |
982 | static ssize_t iscsi_tpg_param_show_##name( \ | |
983 | struct se_portal_group *se_tpg, \ | |
984 | char *page) \ | |
985 | { \ | |
986 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
987 | struct iscsi_portal_group, tpg_se_tpg); \ | |
988 | struct iscsi_param *param; \ | |
989 | ssize_t rb; \ | |
990 | \ | |
991 | if (iscsit_get_tpg(tpg) < 0) \ | |
992 | return -EINVAL; \ | |
993 | \ | |
994 | param = iscsi_find_param_from_key(__stringify(name), \ | |
995 | tpg->param_list); \ | |
996 | if (!param) { \ | |
997 | iscsit_put_tpg(tpg); \ | |
998 | return -EINVAL; \ | |
999 | } \ | |
1000 | rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ | |
1001 | \ | |
1002 | iscsit_put_tpg(tpg); \ | |
1003 | return rb; \ | |
1004 | } \ | |
1005 | static ssize_t iscsi_tpg_param_store_##name( \ | |
1006 | struct se_portal_group *se_tpg, \ | |
1007 | const char *page, \ | |
1008 | size_t count) \ | |
1009 | { \ | |
1010 | struct iscsi_portal_group *tpg = container_of(se_tpg, \ | |
1011 | struct iscsi_portal_group, tpg_se_tpg); \ | |
1012 | char *buf; \ | |
1013 | int ret; \ | |
1014 | \ | |
1015 | buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ | |
1016 | if (!buf) \ | |
1017 | return -ENOMEM; \ | |
1018 | snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ | |
1019 | buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ | |
1020 | \ | |
1021 | if (iscsit_get_tpg(tpg) < 0) { \ | |
1022 | kfree(buf); \ | |
1023 | return -EINVAL; \ | |
1024 | } \ | |
1025 | \ | |
1026 | ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ | |
1027 | if (ret < 0) \ | |
1028 | goto out; \ | |
1029 | \ | |
1030 | kfree(buf); \ | |
1031 | iscsit_put_tpg(tpg); \ | |
1032 | return count; \ | |
1033 | out: \ | |
1034 | kfree(buf); \ | |
1035 | iscsit_put_tpg(tpg); \ | |
1036 | return -EINVAL; \ | |
1037 | } | |
1038 | ||
1039 | #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); | |
1040 | ||
1041 | DEF_TPG_PARAM(AuthMethod); | |
1042 | TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); | |
1043 | ||
1044 | DEF_TPG_PARAM(HeaderDigest); | |
1045 | TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); | |
1046 | ||
1047 | DEF_TPG_PARAM(DataDigest); | |
1048 | TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); | |
1049 | ||
1050 | DEF_TPG_PARAM(MaxConnections); | |
1051 | TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); | |
1052 | ||
1053 | DEF_TPG_PARAM(TargetAlias); | |
1054 | TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); | |
1055 | ||
1056 | DEF_TPG_PARAM(InitialR2T); | |
1057 | TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); | |
1058 | ||
1059 | DEF_TPG_PARAM(ImmediateData); | |
1060 | TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); | |
1061 | ||
1062 | DEF_TPG_PARAM(MaxRecvDataSegmentLength); | |
1063 | TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); | |
1064 | ||
1065 | DEF_TPG_PARAM(MaxBurstLength); | |
1066 | TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); | |
1067 | ||
1068 | DEF_TPG_PARAM(FirstBurstLength); | |
1069 | TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); | |
1070 | ||
1071 | DEF_TPG_PARAM(DefaultTime2Wait); | |
1072 | TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); | |
1073 | ||
1074 | DEF_TPG_PARAM(DefaultTime2Retain); | |
1075 | TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); | |
1076 | ||
1077 | DEF_TPG_PARAM(MaxOutstandingR2T); | |
1078 | TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); | |
1079 | ||
1080 | DEF_TPG_PARAM(DataPDUInOrder); | |
1081 | TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); | |
1082 | ||
1083 | DEF_TPG_PARAM(DataSequenceInOrder); | |
1084 | TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); | |
1085 | ||
1086 | DEF_TPG_PARAM(ErrorRecoveryLevel); | |
1087 | TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); | |
1088 | ||
1089 | DEF_TPG_PARAM(IFMarker); | |
1090 | TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); | |
1091 | ||
1092 | DEF_TPG_PARAM(OFMarker); | |
1093 | TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); | |
1094 | ||
1095 | DEF_TPG_PARAM(IFMarkInt); | |
1096 | TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); | |
1097 | ||
1098 | DEF_TPG_PARAM(OFMarkInt); | |
1099 | TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); | |
1100 | ||
1101 | static struct configfs_attribute *lio_target_tpg_param_attrs[] = { | |
1102 | &iscsi_tpg_param_AuthMethod.attr, | |
1103 | &iscsi_tpg_param_HeaderDigest.attr, | |
1104 | &iscsi_tpg_param_DataDigest.attr, | |
1105 | &iscsi_tpg_param_MaxConnections.attr, | |
1106 | &iscsi_tpg_param_TargetAlias.attr, | |
1107 | &iscsi_tpg_param_InitialR2T.attr, | |
1108 | &iscsi_tpg_param_ImmediateData.attr, | |
1109 | &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, | |
1110 | &iscsi_tpg_param_MaxBurstLength.attr, | |
1111 | &iscsi_tpg_param_FirstBurstLength.attr, | |
1112 | &iscsi_tpg_param_DefaultTime2Wait.attr, | |
1113 | &iscsi_tpg_param_DefaultTime2Retain.attr, | |
1114 | &iscsi_tpg_param_MaxOutstandingR2T.attr, | |
1115 | &iscsi_tpg_param_DataPDUInOrder.attr, | |
1116 | &iscsi_tpg_param_DataSequenceInOrder.attr, | |
1117 | &iscsi_tpg_param_ErrorRecoveryLevel.attr, | |
1118 | &iscsi_tpg_param_IFMarker.attr, | |
1119 | &iscsi_tpg_param_OFMarker.attr, | |
1120 | &iscsi_tpg_param_IFMarkInt.attr, | |
1121 | &iscsi_tpg_param_OFMarkInt.attr, | |
1122 | NULL, | |
1123 | }; | |
1124 | ||
1125 | /* End items for lio_target_tpg_param_cit */ | |
1126 | ||
1127 | /* Start items for lio_target_tpg_cit */ | |
1128 | ||
1129 | static ssize_t lio_target_tpg_show_enable( | |
1130 | struct se_portal_group *se_tpg, | |
1131 | char *page) | |
1132 | { | |
1133 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
1134 | struct iscsi_portal_group, tpg_se_tpg); | |
1135 | ssize_t len; | |
1136 | ||
1137 | spin_lock(&tpg->tpg_state_lock); | |
1138 | len = sprintf(page, "%d\n", | |
1139 | (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); | |
1140 | spin_unlock(&tpg->tpg_state_lock); | |
1141 | ||
1142 | return len; | |
1143 | } | |
1144 | ||
1145 | static ssize_t lio_target_tpg_store_enable( | |
1146 | struct se_portal_group *se_tpg, | |
1147 | const char *page, | |
1148 | size_t count) | |
1149 | { | |
1150 | struct iscsi_portal_group *tpg = container_of(se_tpg, | |
1151 | struct iscsi_portal_group, tpg_se_tpg); | |
1152 | char *endptr; | |
1153 | u32 op; | |
1154 | int ret = 0; | |
1155 | ||
1156 | op = simple_strtoul(page, &endptr, 0); | |
1157 | if ((op != 1) && (op != 0)) { | |
1158 | pr_err("Illegal value for tpg_enable: %u\n", op); | |
1159 | return -EINVAL; | |
1160 | } | |
1161 | ||
1162 | ret = iscsit_get_tpg(tpg); | |
1163 | if (ret < 0) | |
1164 | return -EINVAL; | |
1165 | ||
1166 | if (op) { | |
1167 | ret = iscsit_tpg_enable_portal_group(tpg); | |
1168 | if (ret < 0) | |
1169 | goto out; | |
1170 | } else { | |
1171 | /* | |
1172 | * iscsit_tpg_disable_portal_group() assumes force=1 | |
1173 | */ | |
1174 | ret = iscsit_tpg_disable_portal_group(tpg, 1); | |
1175 | if (ret < 0) | |
1176 | goto out; | |
1177 | } | |
1178 | ||
1179 | iscsit_put_tpg(tpg); | |
1180 | return count; | |
1181 | out: | |
1182 | iscsit_put_tpg(tpg); | |
1183 | return -EINVAL; | |
1184 | } | |
1185 | ||
1186 | TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); | |
1187 | ||
1188 | static struct configfs_attribute *lio_target_tpg_attrs[] = { | |
1189 | &lio_target_tpg_enable.attr, | |
1190 | NULL, | |
1191 | }; | |
1192 | ||
1193 | /* End items for lio_target_tpg_cit */ | |
1194 | ||
1195 | /* Start items for lio_target_tiqn_cit */ | |
1196 | ||
1197 | struct se_portal_group *lio_target_tiqn_addtpg( | |
1198 | struct se_wwn *wwn, | |
1199 | struct config_group *group, | |
1200 | const char *name) | |
1201 | { | |
1202 | struct iscsi_portal_group *tpg; | |
1203 | struct iscsi_tiqn *tiqn; | |
1204 | char *tpgt_str, *end_ptr; | |
1205 | int ret = 0; | |
1206 | unsigned short int tpgt; | |
1207 | ||
1208 | tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); | |
1209 | /* | |
1210 | * Only tpgt_# directory groups can be created below | |
1211 | * target/iscsi/iqn.superturodiskarry/ | |
1212 | */ | |
1213 | tpgt_str = strstr(name, "tpgt_"); | |
1214 | if (!tpgt_str) { | |
1215 | pr_err("Unable to locate \"tpgt_#\" directory" | |
1216 | " group\n"); | |
1217 | return NULL; | |
1218 | } | |
1219 | tpgt_str += 5; /* Skip ahead of "tpgt_" */ | |
1220 | tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); | |
1221 | ||
1222 | tpg = iscsit_alloc_portal_group(tiqn, tpgt); | |
1223 | if (!tpg) | |
1224 | return NULL; | |
1225 | ||
1226 | ret = core_tpg_register( | |
1227 | &lio_target_fabric_configfs->tf_ops, | |
1228 | wwn, &tpg->tpg_se_tpg, (void *)tpg, | |
1229 | TRANSPORT_TPG_TYPE_NORMAL); | |
1230 | if (ret < 0) | |
1231 | return NULL; | |
1232 | ||
1233 | ret = iscsit_tpg_add_portal_group(tiqn, tpg); | |
1234 | if (ret != 0) | |
1235 | goto out; | |
1236 | ||
1237 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); | |
1238 | pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", | |
1239 | name); | |
1240 | return &tpg->tpg_se_tpg; | |
1241 | out: | |
1242 | core_tpg_deregister(&tpg->tpg_se_tpg); | |
1243 | kfree(tpg); | |
1244 | return NULL; | |
1245 | } | |
1246 | ||
1247 | void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) | |
1248 | { | |
1249 | struct iscsi_portal_group *tpg; | |
1250 | struct iscsi_tiqn *tiqn; | |
1251 | ||
1252 | tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); | |
1253 | tiqn = tpg->tpg_tiqn; | |
1254 | /* | |
1255 | * iscsit_tpg_del_portal_group() assumes force=1 | |
1256 | */ | |
1257 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); | |
1258 | iscsit_tpg_del_portal_group(tiqn, tpg, 1); | |
1259 | } | |
1260 | ||
1261 | /* End items for lio_target_tiqn_cit */ | |
1262 | ||
1263 | /* Start LIO-Target TIQN struct contig_item lio_target_cit */ | |
1264 | ||
1265 | static ssize_t lio_target_wwn_show_attr_lio_version( | |
1266 | struct target_fabric_configfs *tf, | |
1267 | char *page) | |
1268 | { | |
1269 | return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); | |
1270 | } | |
1271 | ||
1272 | TF_WWN_ATTR_RO(lio_target, lio_version); | |
1273 | ||
1274 | static struct configfs_attribute *lio_target_wwn_attrs[] = { | |
1275 | &lio_target_wwn_lio_version.attr, | |
1276 | NULL, | |
1277 | }; | |
1278 | ||
1279 | struct se_wwn *lio_target_call_coreaddtiqn( | |
1280 | struct target_fabric_configfs *tf, | |
1281 | struct config_group *group, | |
1282 | const char *name) | |
1283 | { | |
1284 | struct config_group *stats_cg; | |
1285 | struct iscsi_tiqn *tiqn; | |
1286 | ||
1287 | tiqn = iscsit_add_tiqn((unsigned char *)name); | |
1288 | if (IS_ERR(tiqn)) | |
e1750ba2 | 1289 | return ERR_CAST(tiqn); |
e48354ce NB |
1290 | /* |
1291 | * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. | |
1292 | */ | |
1293 | stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; | |
1294 | ||
1295 | stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, | |
1296 | GFP_KERNEL); | |
1297 | if (!stats_cg->default_groups) { | |
1298 | pr_err("Unable to allocate memory for" | |
1299 | " stats_cg->default_groups\n"); | |
1300 | iscsit_del_tiqn(tiqn); | |
1301 | return ERR_PTR(-ENOMEM); | |
1302 | } | |
1303 | ||
1304 | stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; | |
1305 | stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; | |
1306 | stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; | |
1307 | stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; | |
1308 | stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; | |
1309 | stats_cg->default_groups[5] = NULL; | |
1310 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, | |
1311 | "iscsi_instance", &iscsi_stat_instance_cit); | |
1312 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, | |
1313 | "iscsi_sess_err", &iscsi_stat_sess_err_cit); | |
1314 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, | |
1315 | "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); | |
1316 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, | |
1317 | "iscsi_login_stats", &iscsi_stat_login_cit); | |
1318 | config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, | |
1319 | "iscsi_logout_stats", &iscsi_stat_logout_cit); | |
1320 | ||
1321 | pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); | |
1322 | pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" | |
1323 | " %s\n", name); | |
1324 | return &tiqn->tiqn_wwn; | |
1325 | } | |
1326 | ||
1327 | void lio_target_call_coredeltiqn( | |
1328 | struct se_wwn *wwn) | |
1329 | { | |
1330 | struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); | |
1331 | struct config_item *df_item; | |
1332 | struct config_group *stats_cg; | |
1333 | int i; | |
1334 | ||
1335 | stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; | |
1336 | for (i = 0; stats_cg->default_groups[i]; i++) { | |
1337 | df_item = &stats_cg->default_groups[i]->cg_item; | |
1338 | stats_cg->default_groups[i] = NULL; | |
1339 | config_item_put(df_item); | |
1340 | } | |
1341 | kfree(stats_cg->default_groups); | |
1342 | ||
1343 | pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", | |
1344 | tiqn->tiqn); | |
1345 | iscsit_del_tiqn(tiqn); | |
1346 | } | |
1347 | ||
1348 | /* End LIO-Target TIQN struct contig_lio_target_cit */ | |
1349 | ||
1350 | /* Start lio_target_discovery_auth_cit */ | |
1351 | ||
1352 | #define DEF_DISC_AUTH_STR(name, flags) \ | |
1353 | __DEF_NACL_AUTH_STR(disc, name, flags) \ | |
1354 | static ssize_t iscsi_disc_show_##name( \ | |
1355 | struct target_fabric_configfs *tf, \ | |
1356 | char *page) \ | |
1357 | { \ | |
1358 | return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ | |
1359 | page); \ | |
1360 | } \ | |
1361 | static ssize_t iscsi_disc_store_##name( \ | |
1362 | struct target_fabric_configfs *tf, \ | |
1363 | const char *page, \ | |
1364 | size_t count) \ | |
1365 | { \ | |
1366 | return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ | |
1367 | page, count); \ | |
1368 | } | |
1369 | ||
1370 | #define DEF_DISC_AUTH_INT(name) \ | |
1371 | __DEF_NACL_AUTH_INT(disc, name) \ | |
1372 | static ssize_t iscsi_disc_show_##name( \ | |
1373 | struct target_fabric_configfs *tf, \ | |
1374 | char *page) \ | |
1375 | { \ | |
1376 | return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ | |
1377 | page); \ | |
1378 | } | |
1379 | ||
1380 | #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) | |
1381 | #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) | |
1382 | ||
1383 | /* | |
1384 | * One-way authentication userid | |
1385 | */ | |
1386 | DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); | |
1387 | DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); | |
1388 | /* | |
1389 | * One-way authentication password | |
1390 | */ | |
1391 | DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); | |
1392 | DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); | |
1393 | /* | |
1394 | * Enforce mutual authentication | |
1395 | */ | |
1396 | DEF_DISC_AUTH_INT(authenticate_target); | |
1397 | DISC_AUTH_ATTR_RO(authenticate_target); | |
1398 | /* | |
1399 | * Mutual authentication userid | |
1400 | */ | |
1401 | DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); | |
1402 | DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); | |
1403 | /* | |
1404 | * Mutual authentication password | |
1405 | */ | |
1406 | DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); | |
1407 | DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); | |
1408 | ||
1409 | /* | |
1410 | * enforce_discovery_auth | |
1411 | */ | |
1412 | static ssize_t iscsi_disc_show_enforce_discovery_auth( | |
1413 | struct target_fabric_configfs *tf, | |
1414 | char *page) | |
1415 | { | |
1416 | struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; | |
1417 | ||
1418 | return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); | |
1419 | } | |
1420 | ||
1421 | static ssize_t iscsi_disc_store_enforce_discovery_auth( | |
1422 | struct target_fabric_configfs *tf, | |
1423 | const char *page, | |
1424 | size_t count) | |
1425 | { | |
1426 | struct iscsi_param *param; | |
1427 | struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; | |
1428 | char *endptr; | |
1429 | u32 op; | |
1430 | ||
1431 | op = simple_strtoul(page, &endptr, 0); | |
1432 | if ((op != 1) && (op != 0)) { | |
1433 | pr_err("Illegal value for enforce_discovery_auth:" | |
1434 | " %u\n", op); | |
1435 | return -EINVAL; | |
1436 | } | |
1437 | ||
1438 | if (!discovery_tpg) { | |
1439 | pr_err("iscsit_global->discovery_tpg is NULL\n"); | |
1440 | return -EINVAL; | |
1441 | } | |
1442 | ||
1443 | param = iscsi_find_param_from_key(AUTHMETHOD, | |
1444 | discovery_tpg->param_list); | |
1445 | if (!param) | |
1446 | return -EINVAL; | |
1447 | ||
1448 | if (op) { | |
1449 | /* | |
1450 | * Reset the AuthMethod key to CHAP. | |
1451 | */ | |
1452 | if (iscsi_update_param_value(param, CHAP) < 0) | |
1453 | return -EINVAL; | |
1454 | ||
1455 | discovery_tpg->tpg_attrib.authentication = 1; | |
1456 | iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; | |
1457 | pr_debug("LIO-CORE[0] Successfully enabled" | |
1458 | " authentication enforcement for iSCSI" | |
1459 | " Discovery TPG\n"); | |
1460 | } else { | |
1461 | /* | |
1462 | * Reset the AuthMethod key to CHAP,None | |
1463 | */ | |
1464 | if (iscsi_update_param_value(param, "CHAP,None") < 0) | |
1465 | return -EINVAL; | |
1466 | ||
1467 | discovery_tpg->tpg_attrib.authentication = 0; | |
1468 | iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; | |
1469 | pr_debug("LIO-CORE[0] Successfully disabled" | |
1470 | " authentication enforcement for iSCSI" | |
1471 | " Discovery TPG\n"); | |
1472 | } | |
1473 | ||
1474 | return count; | |
1475 | } | |
1476 | ||
1477 | DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); | |
1478 | ||
1479 | static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { | |
1480 | &iscsi_disc_userid.attr, | |
1481 | &iscsi_disc_password.attr, | |
1482 | &iscsi_disc_authenticate_target.attr, | |
1483 | &iscsi_disc_userid_mutual.attr, | |
1484 | &iscsi_disc_password_mutual.attr, | |
1485 | &iscsi_disc_enforce_discovery_auth.attr, | |
1486 | NULL, | |
1487 | }; | |
1488 | ||
1489 | /* End lio_target_discovery_auth_cit */ | |
1490 | ||
1491 | /* Start functions for target_core_fabric_ops */ | |
1492 | ||
1493 | static char *iscsi_get_fabric_name(void) | |
1494 | { | |
1495 | return "iSCSI"; | |
1496 | } | |
1497 | ||
1498 | static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) | |
1499 | { | |
1500 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1501 | ||
1502 | return cmd->init_task_tag; | |
1503 | } | |
1504 | ||
1505 | static int iscsi_get_cmd_state(struct se_cmd *se_cmd) | |
1506 | { | |
1507 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1508 | ||
1509 | return cmd->i_state; | |
1510 | } | |
1511 | ||
1512 | static int iscsi_is_state_remove(struct se_cmd *se_cmd) | |
1513 | { | |
1514 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1515 | ||
1516 | return (cmd->i_state == ISTATE_REMOVE); | |
1517 | } | |
1518 | ||
1519 | static int lio_sess_logged_in(struct se_session *se_sess) | |
1520 | { | |
1521 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1522 | int ret; | |
1523 | /* | |
1524 | * Called with spin_lock_bh(&tpg_lock); and | |
1525 | * spin_lock(&se_tpg->session_lock); held. | |
1526 | */ | |
1527 | spin_lock(&sess->conn_lock); | |
1528 | ret = (sess->session_state != TARG_SESS_STATE_LOGGED_IN); | |
1529 | spin_unlock(&sess->conn_lock); | |
1530 | ||
1531 | return ret; | |
1532 | } | |
1533 | ||
1534 | static u32 lio_sess_get_index(struct se_session *se_sess) | |
1535 | { | |
1536 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1537 | ||
1538 | return sess->session_index; | |
1539 | } | |
1540 | ||
1541 | static u32 lio_sess_get_initiator_sid( | |
1542 | struct se_session *se_sess, | |
1543 | unsigned char *buf, | |
1544 | u32 size) | |
1545 | { | |
1546 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1547 | /* | |
1548 | * iSCSI Initiator Session Identifier from RFC-3720. | |
1549 | */ | |
1550 | return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", | |
1551 | sess->isid[0], sess->isid[1], sess->isid[2], | |
1552 | sess->isid[3], sess->isid[4], sess->isid[5]); | |
1553 | } | |
1554 | ||
1555 | static int lio_queue_data_in(struct se_cmd *se_cmd) | |
1556 | { | |
1557 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1558 | ||
1559 | cmd->i_state = ISTATE_SEND_DATAIN; | |
1560 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | static int lio_write_pending(struct se_cmd *se_cmd) | |
1565 | { | |
1566 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1567 | ||
1568 | if (!cmd->immediate_data && !cmd->unsolicited_data) | |
1569 | return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); | |
1570 | ||
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | static int lio_write_pending_status(struct se_cmd *se_cmd) | |
1575 | { | |
1576 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1577 | int ret; | |
1578 | ||
1579 | spin_lock_bh(&cmd->istate_lock); | |
1580 | ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); | |
1581 | spin_unlock_bh(&cmd->istate_lock); | |
1582 | ||
1583 | return ret; | |
1584 | } | |
1585 | ||
1586 | static int lio_queue_status(struct se_cmd *se_cmd) | |
1587 | { | |
1588 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1589 | ||
1590 | cmd->i_state = ISTATE_SEND_STATUS; | |
1591 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) | |
1596 | { | |
1597 | unsigned char *buffer = se_cmd->sense_buffer; | |
1598 | /* | |
1599 | * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment | |
1600 | * 16-bit SenseLength. | |
1601 | */ | |
1602 | buffer[0] = ((sense_length >> 8) & 0xff); | |
1603 | buffer[1] = (sense_length & 0xff); | |
1604 | /* | |
1605 | * Return two byte offset into allocated sense_buffer. | |
1606 | */ | |
1607 | return 2; | |
1608 | } | |
1609 | ||
1610 | static u16 lio_get_fabric_sense_len(void) | |
1611 | { | |
1612 | /* | |
1613 | * Return two byte offset into allocated sense_buffer. | |
1614 | */ | |
1615 | return 2; | |
1616 | } | |
1617 | ||
1618 | static int lio_queue_tm_rsp(struct se_cmd *se_cmd) | |
1619 | { | |
1620 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1621 | ||
1622 | cmd->i_state = ISTATE_SEND_TASKMGTRSP; | |
1623 | iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); | |
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) | |
1628 | { | |
1629 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1630 | ||
1631 | return &tpg->tpg_tiqn->tiqn[0]; | |
1632 | } | |
1633 | ||
1634 | static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) | |
1635 | { | |
1636 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1637 | ||
1638 | return tpg->tpgt; | |
1639 | } | |
1640 | ||
1641 | static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) | |
1642 | { | |
1643 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1644 | ||
1645 | return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; | |
1646 | } | |
1647 | ||
1648 | static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) | |
1649 | { | |
1650 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1651 | ||
1652 | return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; | |
1653 | } | |
1654 | ||
1655 | static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
1656 | { | |
1657 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1658 | ||
1659 | return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; | |
1660 | } | |
1661 | ||
1662 | static int lio_tpg_check_demo_mode_write_protect( | |
1663 | struct se_portal_group *se_tpg) | |
1664 | { | |
1665 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1666 | ||
1667 | return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; | |
1668 | } | |
1669 | ||
1670 | static int lio_tpg_check_prod_mode_write_protect( | |
1671 | struct se_portal_group *se_tpg) | |
1672 | { | |
1673 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1674 | ||
1675 | return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; | |
1676 | } | |
1677 | ||
1678 | static void lio_tpg_release_fabric_acl( | |
1679 | struct se_portal_group *se_tpg, | |
1680 | struct se_node_acl *se_acl) | |
1681 | { | |
1682 | struct iscsi_node_acl *acl = container_of(se_acl, | |
1683 | struct iscsi_node_acl, se_node_acl); | |
1684 | kfree(acl); | |
1685 | } | |
1686 | ||
1687 | /* | |
1688 | * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. | |
1689 | * | |
1690 | * Also, this function calls iscsit_inc_session_usage_count() on the | |
1691 | * struct iscsi_session in question. | |
1692 | */ | |
1693 | static int lio_tpg_shutdown_session(struct se_session *se_sess) | |
1694 | { | |
1695 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1696 | ||
1697 | spin_lock(&sess->conn_lock); | |
1698 | if (atomic_read(&sess->session_fall_back_to_erl0) || | |
1699 | atomic_read(&sess->session_logout) || | |
1700 | (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { | |
1701 | spin_unlock(&sess->conn_lock); | |
1702 | return 0; | |
1703 | } | |
1704 | atomic_set(&sess->session_reinstatement, 1); | |
1705 | spin_unlock(&sess->conn_lock); | |
1706 | ||
1707 | iscsit_inc_session_usage_count(sess); | |
1708 | iscsit_stop_time2retain_timer(sess); | |
1709 | ||
1710 | return 1; | |
1711 | } | |
1712 | ||
1713 | /* | |
1714 | * Calls iscsit_dec_session_usage_count() as inverse of | |
1715 | * lio_tpg_shutdown_session() | |
1716 | */ | |
1717 | static void lio_tpg_close_session(struct se_session *se_sess) | |
1718 | { | |
1719 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1720 | /* | |
1721 | * If the iSCSI Session for the iSCSI Initiator Node exists, | |
1722 | * forcefully shutdown the iSCSI NEXUS. | |
1723 | */ | |
1724 | iscsit_stop_session(sess, 1, 1); | |
1725 | iscsit_dec_session_usage_count(sess); | |
1726 | iscsit_close_session(sess); | |
1727 | } | |
1728 | ||
1729 | static void lio_tpg_stop_session( | |
1730 | struct se_session *se_sess, | |
1731 | int sess_sleep, | |
1732 | int conn_sleep) | |
1733 | { | |
1734 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1735 | ||
1736 | iscsit_stop_session(sess, sess_sleep, conn_sleep); | |
1737 | } | |
1738 | ||
1739 | static void lio_tpg_fall_back_to_erl0(struct se_session *se_sess) | |
1740 | { | |
1741 | struct iscsi_session *sess = se_sess->fabric_sess_ptr; | |
1742 | ||
1743 | iscsit_fall_back_to_erl0(sess); | |
1744 | } | |
1745 | ||
1746 | static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) | |
1747 | { | |
1748 | struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; | |
1749 | ||
1750 | return tpg->tpg_tiqn->tiqn_index; | |
1751 | } | |
1752 | ||
1753 | static void lio_set_default_node_attributes(struct se_node_acl *se_acl) | |
1754 | { | |
1755 | struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, | |
1756 | se_node_acl); | |
1757 | ||
1758 | ISCSI_NODE_ATTRIB(acl)->nacl = acl; | |
1759 | iscsit_set_default_node_attribues(acl); | |
1760 | } | |
1761 | ||
1762 | static void lio_release_cmd(struct se_cmd *se_cmd) | |
1763 | { | |
1764 | struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); | |
1765 | ||
1766 | iscsit_release_cmd(cmd); | |
1767 | } | |
1768 | ||
1769 | /* End functions for target_core_fabric_ops */ | |
1770 | ||
1771 | int iscsi_target_register_configfs(void) | |
1772 | { | |
1773 | struct target_fabric_configfs *fabric; | |
1774 | int ret; | |
1775 | ||
1776 | lio_target_fabric_configfs = NULL; | |
1777 | fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); | |
1778 | if (IS_ERR(fabric)) { | |
1779 | pr_err("target_fabric_configfs_init() for" | |
1780 | " LIO-Target failed!\n"); | |
1781 | return PTR_ERR(fabric); | |
1782 | } | |
1783 | /* | |
1784 | * Setup the fabric API of function pointers used by target_core_mod.. | |
1785 | */ | |
1786 | fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; | |
1787 | fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; | |
1788 | fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; | |
1789 | fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; | |
1790 | fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; | |
1791 | fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; | |
1792 | fabric->tf_ops.tpg_get_pr_transport_id_len = | |
1793 | &iscsi_get_pr_transport_id_len; | |
1794 | fabric->tf_ops.tpg_parse_pr_out_transport_id = | |
1795 | &iscsi_parse_pr_out_transport_id; | |
1796 | fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; | |
1797 | fabric->tf_ops.tpg_check_demo_mode_cache = | |
1798 | &lio_tpg_check_demo_mode_cache; | |
1799 | fabric->tf_ops.tpg_check_demo_mode_write_protect = | |
1800 | &lio_tpg_check_demo_mode_write_protect; | |
1801 | fabric->tf_ops.tpg_check_prod_mode_write_protect = | |
1802 | &lio_tpg_check_prod_mode_write_protect; | |
1803 | fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; | |
1804 | fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; | |
1805 | fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; | |
1806 | fabric->tf_ops.release_cmd = &lio_release_cmd; | |
1807 | fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; | |
1808 | fabric->tf_ops.close_session = &lio_tpg_close_session; | |
1809 | fabric->tf_ops.stop_session = &lio_tpg_stop_session; | |
1810 | fabric->tf_ops.fall_back_to_erl0 = &lio_tpg_fall_back_to_erl0; | |
1811 | fabric->tf_ops.sess_logged_in = &lio_sess_logged_in; | |
1812 | fabric->tf_ops.sess_get_index = &lio_sess_get_index; | |
1813 | fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; | |
1814 | fabric->tf_ops.write_pending = &lio_write_pending; | |
1815 | fabric->tf_ops.write_pending_status = &lio_write_pending_status; | |
1816 | fabric->tf_ops.set_default_node_attributes = | |
1817 | &lio_set_default_node_attributes; | |
1818 | fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; | |
1819 | fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; | |
1820 | fabric->tf_ops.queue_data_in = &lio_queue_data_in; | |
1821 | fabric->tf_ops.queue_status = &lio_queue_status; | |
1822 | fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; | |
1823 | fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; | |
1824 | fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; | |
1825 | fabric->tf_ops.is_state_remove = &iscsi_is_state_remove; | |
1826 | /* | |
1827 | * Setup function pointers for generic logic in target_core_fabric_configfs.c | |
1828 | */ | |
1829 | fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; | |
1830 | fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; | |
1831 | fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; | |
1832 | fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; | |
1833 | fabric->tf_ops.fabric_post_link = NULL; | |
1834 | fabric->tf_ops.fabric_pre_unlink = NULL; | |
1835 | fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; | |
1836 | fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; | |
1837 | fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; | |
1838 | fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; | |
1839 | /* | |
1840 | * Setup default attribute lists for various fabric->tf_cit_tmpl | |
1841 | * sturct config_item_type's | |
1842 | */ | |
1843 | TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; | |
1844 | TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; | |
1845 | TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; | |
1846 | TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; | |
1847 | TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; | |
1848 | TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; | |
1849 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; | |
1850 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; | |
1851 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; | |
1852 | TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; | |
1853 | ||
1854 | ret = target_fabric_configfs_register(fabric); | |
1855 | if (ret < 0) { | |
1856 | pr_err("target_fabric_configfs_register() for" | |
1857 | " LIO-Target failed!\n"); | |
1858 | target_fabric_configfs_free(fabric); | |
1859 | return ret; | |
1860 | } | |
1861 | ||
1862 | lio_target_fabric_configfs = fabric; | |
1863 | pr_debug("LIO_TARGET[0] - Set fabric ->" | |
1864 | " lio_target_fabric_configfs\n"); | |
1865 | return 0; | |
1866 | } | |
1867 | ||
1868 | ||
1869 | void iscsi_target_deregister_configfs(void) | |
1870 | { | |
1871 | if (!lio_target_fabric_configfs) | |
1872 | return; | |
1873 | /* | |
1874 | * Shutdown discovery sessions and disable discovery TPG | |
1875 | */ | |
1876 | if (iscsit_global->discovery_tpg) | |
1877 | iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); | |
1878 | ||
1879 | target_fabric_configfs_deregister(lio_target_fabric_configfs); | |
1880 | lio_target_fabric_configfs = NULL; | |
1881 | pr_debug("LIO_TARGET[0] - Cleared" | |
1882 | " lio_target_fabric_configfs\n"); | |
1883 | } |