1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2003, 2004 Silicon Graphics International Corp.
5 * Copyright (c) 1997-2007 Kenneth D. Merry
6 * Copyright (c) 2012 The FreeBSD Foundation
7 * Copyright (c) 2017 Jakub Wojciech Klama <[email protected]>
8 * All rights reserved.
9 *
10 * Portions of this software were developed by Edward Tomasz Napierala
11 * under sponsorship from the FreeBSD Foundation.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions, and the following disclaimer,
18 * without modification.
19 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
20 * substantially similar to the "NO WARRANTY" disclaimer below
21 * ("Disclaimer") and any redistribution must be conditioned upon
22 * including a substantially similar Disclaimer requirement for further
23 * binary redistribution.
24 *
25 * NO WARRANTY
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
29 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
34 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
35 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGES.
37 *
38 */
39
40 #include <sys/cdefs.h>
41 #include <sys/param.h>
42 #include <sys/capsicum.h>
43 #include <sys/callout.h>
44 #include <sys/ioctl.h>
45 #include <sys/linker.h>
46 #include <sys/module.h>
47 #include <sys/queue.h>
48 #include <sys/sbuf.h>
49 #include <sys/nv.h>
50 #include <sys/stat.h>
51 #include <assert.h>
52 #include <bsdxml.h>
53 #include <capsicum_helpers.h>
54 #include <ctype.h>
55 #include <errno.h>
56 #include <fcntl.h>
57 #include <stdint.h>
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <strings.h>
62 #include <cam/scsi/scsi_all.h>
63 #include <cam/scsi/scsi_message.h>
64 #include <cam/ctl/ctl.h>
65 #include <cam/ctl/ctl_io.h>
66 #include <cam/ctl/ctl_backend.h>
67 #include <cam/ctl/ctl_ioctl.h>
68 #include <cam/ctl/ctl_util.h>
69 #include <cam/ctl/ctl_scsi_all.h>
70
71 #include "ctld.h"
72
73 #ifdef ICL_KERNEL_PROXY
74 #include <netdb.h>
75 #endif
76
77 #define NVLIST_BUFSIZE 1024
78
79 extern bool proxy_mode;
80
81 static int ctl_fd = 0;
82
83 void
kernel_init(void)84 kernel_init(void)
85 {
86 int retval, saved_errno;
87
88 ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
89 if (ctl_fd < 0 && errno == ENOENT) {
90 saved_errno = errno;
91 retval = kldload("ctl");
92 if (retval != -1)
93 ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
94 else
95 errno = saved_errno;
96 }
97 if (ctl_fd < 0)
98 log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
99 #ifdef WANT_ISCSI
100 else {
101 saved_errno = errno;
102 if (modfind("cfiscsi") == -1 && kldload("cfiscsi") == -1)
103 log_warn("couldn't load cfiscsi");
104 errno = saved_errno;
105 }
106 #endif
107 }
108
109 /*
110 * Name/value pair used for per-LUN attributes.
111 */
112 struct cctl_lun_nv {
113 char *name;
114 char *value;
115 STAILQ_ENTRY(cctl_lun_nv) links;
116 };
117
118 /*
119 * Backend LUN information.
120 */
121 struct cctl_lun {
122 uint64_t lun_id;
123 char *backend_type;
124 uint8_t device_type;
125 uint64_t size_blocks;
126 uint32_t blocksize;
127 char *serial_number;
128 char *device_id;
129 char *ctld_name;
130 STAILQ_HEAD(,cctl_lun_nv) attr_list;
131 STAILQ_ENTRY(cctl_lun) links;
132 };
133
134 struct cctl_port {
135 uint32_t port_id;
136 char *port_frontend;
137 char *port_name;
138 int pp;
139 int vp;
140 int cfiscsi_state;
141 char *cfiscsi_target;
142 uint16_t cfiscsi_portal_group_tag;
143 char *ctld_portal_group_name;
144 STAILQ_HEAD(,cctl_lun_nv) attr_list;
145 STAILQ_ENTRY(cctl_port) links;
146 };
147
148 struct cctl_devlist_data {
149 int num_luns;
150 STAILQ_HEAD(,cctl_lun) lun_list;
151 struct cctl_lun *cur_lun;
152 int num_ports;
153 STAILQ_HEAD(,cctl_port) port_list;
154 struct cctl_port *cur_port;
155 int level;
156 struct sbuf *cur_sb[32];
157 };
158
159 static void
cctl_start_element(void * user_data,const char * name,const char ** attr)160 cctl_start_element(void *user_data, const char *name, const char **attr)
161 {
162 int i;
163 struct cctl_devlist_data *devlist;
164 struct cctl_lun *cur_lun;
165
166 devlist = (struct cctl_devlist_data *)user_data;
167 cur_lun = devlist->cur_lun;
168 devlist->level++;
169 if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
170 sizeof(devlist->cur_sb[0])))
171 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
172 nitems(devlist->cur_sb));
173
174 devlist->cur_sb[devlist->level] = sbuf_new_auto();
175 if (devlist->cur_sb[devlist->level] == NULL)
176 log_err(1, "%s: unable to allocate sbuf", __func__);
177
178 if (strcmp(name, "lun") == 0) {
179 if (cur_lun != NULL)
180 log_errx(1, "%s: improper lun element nesting",
181 __func__);
182
183 cur_lun = calloc(1, sizeof(*cur_lun));
184 if (cur_lun == NULL)
185 log_err(1, "%s: cannot allocate %zd bytes", __func__,
186 sizeof(*cur_lun));
187
188 devlist->num_luns++;
189 devlist->cur_lun = cur_lun;
190
191 STAILQ_INIT(&cur_lun->attr_list);
192 STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links);
193
194 for (i = 0; attr[i] != NULL; i += 2) {
195 if (strcmp(attr[i], "id") == 0) {
196 cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
197 } else {
198 log_errx(1, "%s: invalid LUN attribute %s = %s",
199 __func__, attr[i], attr[i+1]);
200 }
201 }
202 }
203 }
204
205 static void
cctl_end_element(void * user_data,const char * name)206 cctl_end_element(void *user_data, const char *name)
207 {
208 struct cctl_devlist_data *devlist;
209 struct cctl_lun *cur_lun;
210 char *str;
211
212 devlist = (struct cctl_devlist_data *)user_data;
213 cur_lun = devlist->cur_lun;
214
215 if ((cur_lun == NULL)
216 && (strcmp(name, "ctllunlist") != 0))
217 log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
218
219 if (devlist->cur_sb[devlist->level] == NULL)
220 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
221 devlist->level, name);
222
223 sbuf_finish(devlist->cur_sb[devlist->level]);
224 str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
225
226 if (strlen(str) == 0) {
227 free(str);
228 str = NULL;
229 }
230
231 sbuf_delete(devlist->cur_sb[devlist->level]);
232 devlist->cur_sb[devlist->level] = NULL;
233 devlist->level--;
234
235 if (strcmp(name, "backend_type") == 0) {
236 cur_lun->backend_type = str;
237 str = NULL;
238 } else if (strcmp(name, "lun_type") == 0) {
239 if (str == NULL)
240 log_errx(1, "%s: %s missing its argument", __func__, name);
241 cur_lun->device_type = strtoull(str, NULL, 0);
242 } else if (strcmp(name, "size") == 0) {
243 if (str == NULL)
244 log_errx(1, "%s: %s missing its argument", __func__, name);
245 cur_lun->size_blocks = strtoull(str, NULL, 0);
246 } else if (strcmp(name, "blocksize") == 0) {
247 if (str == NULL)
248 log_errx(1, "%s: %s missing its argument", __func__, name);
249 cur_lun->blocksize = strtoul(str, NULL, 0);
250 } else if (strcmp(name, "serial_number") == 0) {
251 cur_lun->serial_number = str;
252 str = NULL;
253 } else if (strcmp(name, "device_id") == 0) {
254 cur_lun->device_id = str;
255 str = NULL;
256 } else if (strcmp(name, "ctld_name") == 0) {
257 cur_lun->ctld_name = str;
258 str = NULL;
259 } else if (strcmp(name, "lun") == 0) {
260 devlist->cur_lun = NULL;
261 } else if (strcmp(name, "ctllunlist") == 0) {
262 /* Nothing. */
263 } else {
264 struct cctl_lun_nv *nv;
265
266 nv = calloc(1, sizeof(*nv));
267 if (nv == NULL)
268 log_err(1, "%s: can't allocate %zd bytes for nv pair",
269 __func__, sizeof(*nv));
270
271 nv->name = checked_strdup(name);
272
273 nv->value = str;
274 str = NULL;
275 STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links);
276 }
277
278 free(str);
279 }
280
281 static void
cctl_start_pelement(void * user_data,const char * name,const char ** attr)282 cctl_start_pelement(void *user_data, const char *name, const char **attr)
283 {
284 int i;
285 struct cctl_devlist_data *devlist;
286 struct cctl_port *cur_port;
287
288 devlist = (struct cctl_devlist_data *)user_data;
289 cur_port = devlist->cur_port;
290 devlist->level++;
291 if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
292 sizeof(devlist->cur_sb[0])))
293 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
294 nitems(devlist->cur_sb));
295
296 devlist->cur_sb[devlist->level] = sbuf_new_auto();
297 if (devlist->cur_sb[devlist->level] == NULL)
298 log_err(1, "%s: unable to allocate sbuf", __func__);
299
300 if (strcmp(name, "targ_port") == 0) {
301 if (cur_port != NULL)
302 log_errx(1, "%s: improper port element nesting (%s)",
303 __func__, name);
304
305 cur_port = calloc(1, sizeof(*cur_port));
306 if (cur_port == NULL)
307 log_err(1, "%s: cannot allocate %zd bytes", __func__,
308 sizeof(*cur_port));
309
310 devlist->num_ports++;
311 devlist->cur_port = cur_port;
312
313 STAILQ_INIT(&cur_port->attr_list);
314 STAILQ_INSERT_TAIL(&devlist->port_list, cur_port, links);
315
316 for (i = 0; attr[i] != NULL; i += 2) {
317 if (strcmp(attr[i], "id") == 0) {
318 cur_port->port_id = strtoul(attr[i+1], NULL, 0);
319 } else {
320 log_errx(1, "%s: invalid LUN attribute %s = %s",
321 __func__, attr[i], attr[i+1]);
322 }
323 }
324 }
325 }
326
327 static void
cctl_end_pelement(void * user_data,const char * name)328 cctl_end_pelement(void *user_data, const char *name)
329 {
330 struct cctl_devlist_data *devlist;
331 struct cctl_port *cur_port;
332 char *str;
333
334 devlist = (struct cctl_devlist_data *)user_data;
335 cur_port = devlist->cur_port;
336
337 if ((cur_port == NULL)
338 && (strcmp(name, "ctlportlist") != 0))
339 log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
340
341 if (devlist->cur_sb[devlist->level] == NULL)
342 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
343 devlist->level, name);
344
345 sbuf_finish(devlist->cur_sb[devlist->level]);
346 str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
347
348 if (strlen(str) == 0) {
349 free(str);
350 str = NULL;
351 }
352
353 sbuf_delete(devlist->cur_sb[devlist->level]);
354 devlist->cur_sb[devlist->level] = NULL;
355 devlist->level--;
356
357 if (strcmp(name, "frontend_type") == 0) {
358 cur_port->port_frontend = str;
359 str = NULL;
360 } else if (strcmp(name, "port_name") == 0) {
361 cur_port->port_name = str;
362 str = NULL;
363 } else if (strcmp(name, "physical_port") == 0) {
364 if (str == NULL)
365 log_errx(1, "%s: %s missing its argument", __func__, name);
366 cur_port->pp = strtoul(str, NULL, 0);
367 } else if (strcmp(name, "virtual_port") == 0) {
368 if (str == NULL)
369 log_errx(1, "%s: %s missing its argument", __func__, name);
370 cur_port->vp = strtoul(str, NULL, 0);
371 } else if (strcmp(name, "cfiscsi_target") == 0) {
372 cur_port->cfiscsi_target = str;
373 str = NULL;
374 } else if (strcmp(name, "cfiscsi_state") == 0) {
375 if (str == NULL)
376 log_errx(1, "%s: %s missing its argument", __func__, name);
377 cur_port->cfiscsi_state = strtoul(str, NULL, 0);
378 } else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
379 if (str == NULL)
380 log_errx(1, "%s: %s missing its argument", __func__, name);
381 cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
382 } else if (strcmp(name, "ctld_portal_group_name") == 0) {
383 cur_port->ctld_portal_group_name = str;
384 str = NULL;
385 } else if (strcmp(name, "targ_port") == 0) {
386 devlist->cur_port = NULL;
387 } else if (strcmp(name, "ctlportlist") == 0) {
388 /* Nothing. */
389 } else {
390 struct cctl_lun_nv *nv;
391
392 nv = calloc(1, sizeof(*nv));
393 if (nv == NULL)
394 log_err(1, "%s: can't allocate %zd bytes for nv pair",
395 __func__, sizeof(*nv));
396
397 nv->name = checked_strdup(name);
398
399 nv->value = str;
400 str = NULL;
401 STAILQ_INSERT_TAIL(&cur_port->attr_list, nv, links);
402 }
403
404 free(str);
405 }
406
407 static void
cctl_char_handler(void * user_data,const XML_Char * str,int len)408 cctl_char_handler(void *user_data, const XML_Char *str, int len)
409 {
410 struct cctl_devlist_data *devlist;
411
412 devlist = (struct cctl_devlist_data *)user_data;
413
414 sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
415 }
416
417 struct conf *
conf_new_from_kernel(struct kports * kports)418 conf_new_from_kernel(struct kports *kports)
419 {
420 struct conf *conf = NULL;
421 struct target *targ;
422 struct portal_group *pg;
423 struct pport *pp;
424 struct port *cp;
425 struct lun *cl;
426 struct option *o;
427 struct ctl_lun_list list;
428 struct cctl_devlist_data devlist;
429 struct cctl_lun *lun;
430 struct cctl_port *port;
431 XML_Parser parser;
432 char *str, *name;
433 int len, retval;
434
435 bzero(&devlist, sizeof(devlist));
436 STAILQ_INIT(&devlist.lun_list);
437 STAILQ_INIT(&devlist.port_list);
438
439 log_debugx("obtaining previously configured CTL luns from the kernel");
440
441 str = NULL;
442 len = 4096;
443 retry:
444 str = realloc(str, len);
445 if (str == NULL)
446 log_err(1, "realloc");
447
448 bzero(&list, sizeof(list));
449 list.alloc_len = len;
450 list.status = CTL_LUN_LIST_NONE;
451 list.lun_xml = str;
452
453 if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
454 log_warn("error issuing CTL_LUN_LIST ioctl");
455 free(str);
456 return (NULL);
457 }
458
459 if (list.status == CTL_LUN_LIST_ERROR) {
460 log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
461 list.error_str);
462 free(str);
463 return (NULL);
464 }
465
466 if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
467 len = len << 1;
468 goto retry;
469 }
470
471 parser = XML_ParserCreate(NULL);
472 if (parser == NULL) {
473 log_warnx("unable to create XML parser");
474 free(str);
475 return (NULL);
476 }
477
478 XML_SetUserData(parser, &devlist);
479 XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
480 XML_SetCharacterDataHandler(parser, cctl_char_handler);
481
482 retval = XML_Parse(parser, str, strlen(str), 1);
483 XML_ParserFree(parser);
484 free(str);
485 if (retval != 1) {
486 log_warnx("XML_Parse failed");
487 return (NULL);
488 }
489
490 str = NULL;
491 len = 4096;
492 retry_port:
493 str = realloc(str, len);
494 if (str == NULL)
495 log_err(1, "realloc");
496
497 bzero(&list, sizeof(list));
498 list.alloc_len = len;
499 list.status = CTL_LUN_LIST_NONE;
500 list.lun_xml = str;
501
502 if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
503 log_warn("error issuing CTL_PORT_LIST ioctl");
504 free(str);
505 return (NULL);
506 }
507
508 if (list.status == CTL_LUN_LIST_ERROR) {
509 log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
510 list.error_str);
511 free(str);
512 return (NULL);
513 }
514
515 if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
516 len = len << 1;
517 goto retry_port;
518 }
519
520 parser = XML_ParserCreate(NULL);
521 if (parser == NULL) {
522 log_warnx("unable to create XML parser");
523 free(str);
524 return (NULL);
525 }
526
527 XML_SetUserData(parser, &devlist);
528 XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
529 XML_SetCharacterDataHandler(parser, cctl_char_handler);
530
531 retval = XML_Parse(parser, str, strlen(str), 1);
532 XML_ParserFree(parser);
533 free(str);
534 if (retval != 1) {
535 log_warnx("XML_Parse failed");
536 return (NULL);
537 }
538
539 conf = conf_new();
540
541 name = NULL;
542 STAILQ_FOREACH(port, &devlist.port_list, links) {
543 if (strcmp(port->port_frontend, "ha") == 0)
544 continue;
545 free(name);
546 if (port->pp == 0 && port->vp == 0) {
547 name = checked_strdup(port->port_name);
548 } else if (port->vp == 0) {
549 retval = asprintf(&name, "%s/%d",
550 port->port_name, port->pp);
551 if (retval <= 0)
552 log_err(1, "asprintf");
553 } else {
554 retval = asprintf(&name, "%s/%d/%d",
555 port->port_name, port->pp, port->vp);
556 if (retval <= 0)
557 log_err(1, "asprintf");
558 }
559
560 if (port->cfiscsi_target == NULL) {
561 log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
562 port->port_id, name);
563 pp = pport_find(kports, name);
564 if (pp == NULL) {
565 #if 0
566 log_debugx("found new kernel port %u \"%s\"",
567 port->port_id, name);
568 #endif
569 pp = pport_new(kports, name, port->port_id);
570 if (pp == NULL) {
571 log_warnx("pport_new failed");
572 continue;
573 }
574 }
575 continue;
576 }
577 if (port->cfiscsi_state != 1) {
578 log_debugx("CTL port %ju is not active (%d); ignoring",
579 (uintmax_t)port->port_id, port->cfiscsi_state);
580 continue;
581 }
582
583 targ = target_find(conf, port->cfiscsi_target);
584 if (targ == NULL) {
585 #if 0
586 log_debugx("found new kernel target %s for CTL port %ld",
587 port->cfiscsi_target, port->port_id);
588 #endif
589 targ = target_new(conf, port->cfiscsi_target);
590 if (targ == NULL) {
591 log_warnx("target_new failed");
592 continue;
593 }
594 }
595
596 if (port->ctld_portal_group_name == NULL)
597 continue;
598 pg = portal_group_find(conf, port->ctld_portal_group_name);
599 if (pg == NULL) {
600 #if 0
601 log_debugx("found new kernel portal group %s for CTL port %ld",
602 port->ctld_portal_group_name, port->port_id);
603 #endif
604 pg = portal_group_new(conf, port->ctld_portal_group_name);
605 if (pg == NULL) {
606 log_warnx("portal_group_new failed");
607 continue;
608 }
609 }
610 pg->pg_tag = port->cfiscsi_portal_group_tag;
611 cp = port_new(conf, targ, pg);
612 if (cp == NULL) {
613 log_warnx("port_new failed");
614 continue;
615 }
616 cp->p_ctl_port = port->port_id;
617 }
618 while ((port = STAILQ_FIRST(&devlist.port_list))) {
619 struct cctl_lun_nv *nv;
620
621 STAILQ_REMOVE_HEAD(&devlist.port_list, links);
622 free(port->port_frontend);
623 free(port->port_name);
624 free(port->cfiscsi_target);
625 free(port->ctld_portal_group_name);
626 while ((nv = STAILQ_FIRST(&port->attr_list))) {
627 STAILQ_REMOVE_HEAD(&port->attr_list, links);
628 free(nv->value);
629 free(nv->name);
630 free(nv);
631 }
632 free(port);
633 }
634 free(name);
635
636 STAILQ_FOREACH(lun, &devlist.lun_list, links) {
637 struct cctl_lun_nv *nv;
638
639 if (lun->ctld_name == NULL) {
640 log_debugx("CTL lun %ju wasn't managed by ctld; "
641 "ignoring", (uintmax_t)lun->lun_id);
642 continue;
643 }
644
645 cl = lun_find(conf, lun->ctld_name);
646 if (cl != NULL) {
647 log_warnx("found CTL lun %ju \"%s\", "
648 "also backed by CTL lun %d; ignoring",
649 (uintmax_t)lun->lun_id, lun->ctld_name,
650 cl->l_ctl_lun);
651 continue;
652 }
653
654 log_debugx("found CTL lun %ju \"%s\"",
655 (uintmax_t)lun->lun_id, lun->ctld_name);
656
657 cl = lun_new(conf, lun->ctld_name);
658 if (cl == NULL) {
659 log_warnx("lun_new failed");
660 continue;
661 }
662 lun_set_backend(cl, lun->backend_type);
663 lun_set_device_type(cl, lun->device_type);
664 lun_set_blocksize(cl, lun->blocksize);
665 lun_set_device_id(cl, lun->device_id);
666 lun_set_serial(cl, lun->serial_number);
667 lun_set_size(cl, lun->size_blocks * cl->l_blocksize);
668 lun_set_ctl_lun(cl, lun->lun_id);
669
670 STAILQ_FOREACH(nv, &lun->attr_list, links) {
671 if (strcmp(nv->name, "file") == 0 ||
672 strcmp(nv->name, "dev") == 0) {
673 lun_set_path(cl, nv->value);
674 continue;
675 }
676 o = option_new(&cl->l_options, nv->name, nv->value);
677 if (o == NULL)
678 log_warnx("unable to add CTL lun option %s "
679 "for CTL lun %ju \"%s\"",
680 nv->name, (uintmax_t) lun->lun_id,
681 cl->l_name);
682 }
683 }
684 while ((lun = STAILQ_FIRST(&devlist.lun_list))) {
685 struct cctl_lun_nv *nv;
686
687 STAILQ_REMOVE_HEAD(&devlist.lun_list, links);
688 while ((nv = STAILQ_FIRST(&lun->attr_list))) {
689 STAILQ_REMOVE_HEAD(&lun->attr_list, links);
690 free(nv->value);
691 free(nv->name);
692 free(nv);
693 }
694 free(lun);
695 }
696
697 return (conf);
698 }
699
700 int
kernel_lun_add(struct lun * lun)701 kernel_lun_add(struct lun *lun)
702 {
703 struct option *o;
704 struct ctl_lun_req req;
705 int error;
706
707 bzero(&req, sizeof(req));
708
709 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
710 req.reqtype = CTL_LUNREQ_CREATE;
711
712 req.reqdata.create.blocksize_bytes = lun->l_blocksize;
713
714 if (lun->l_size != 0)
715 req.reqdata.create.lun_size_bytes = lun->l_size;
716
717 if (lun->l_ctl_lun >= 0) {
718 req.reqdata.create.req_lun_id = lun->l_ctl_lun;
719 req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
720 }
721
722 req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
723 req.reqdata.create.device_type = lun->l_device_type;
724
725 if (lun->l_serial != NULL) {
726 strncpy(req.reqdata.create.serial_num, lun->l_serial,
727 sizeof(req.reqdata.create.serial_num));
728 req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
729 }
730
731 if (lun->l_device_id != NULL) {
732 strncpy(req.reqdata.create.device_id, lun->l_device_id,
733 sizeof(req.reqdata.create.device_id));
734 req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
735 }
736
737 if (lun->l_path != NULL) {
738 o = option_find(&lun->l_options, "file");
739 if (o != NULL) {
740 option_set(o, lun->l_path);
741 } else {
742 o = option_new(&lun->l_options, "file", lun->l_path);
743 assert(o != NULL);
744 }
745 }
746
747 o = option_find(&lun->l_options, "ctld_name");
748 if (o != NULL) {
749 option_set(o, lun->l_name);
750 } else {
751 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
752 assert(o != NULL);
753 }
754
755 o = option_find(&lun->l_options, "scsiname");
756 if (o == NULL && lun->l_scsiname != NULL) {
757 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
758 assert(o != NULL);
759 }
760
761 if (!TAILQ_EMPTY(&lun->l_options)) {
762 req.args_nvl = nvlist_create(0);
763 if (req.args_nvl == NULL) {
764 log_warn("error allocating nvlist");
765 return (1);
766 }
767
768 TAILQ_FOREACH(o, &lun->l_options, o_next)
769 nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
770
771 req.args = nvlist_pack(req.args_nvl, &req.args_len);
772 if (req.args == NULL) {
773 nvlist_destroy(req.args_nvl);
774 log_warn("error packing nvlist");
775 return (1);
776 }
777 }
778
779 error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
780 free(req.args);
781 nvlist_destroy(req.args_nvl);
782
783 if (error != 0) {
784 log_warn("error issuing CTL_LUN_REQ ioctl");
785 return (1);
786 }
787
788 switch (req.status) {
789 case CTL_LUN_ERROR:
790 log_warnx("LUN creation error: %s", req.error_str);
791 return (1);
792 case CTL_LUN_WARNING:
793 log_warnx("LUN creation warning: %s", req.error_str);
794 break;
795 case CTL_LUN_OK:
796 break;
797 default:
798 log_warnx("unknown LUN creation status: %d",
799 req.status);
800 return (1);
801 }
802
803 lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id);
804 return (0);
805 }
806
807 int
kernel_lun_modify(struct lun * lun)808 kernel_lun_modify(struct lun *lun)
809 {
810 struct option *o;
811 struct ctl_lun_req req;
812 int error;
813
814 bzero(&req, sizeof(req));
815
816 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
817 req.reqtype = CTL_LUNREQ_MODIFY;
818
819 req.reqdata.modify.lun_id = lun->l_ctl_lun;
820 req.reqdata.modify.lun_size_bytes = lun->l_size;
821
822 if (lun->l_path != NULL) {
823 o = option_find(&lun->l_options, "file");
824 if (o != NULL) {
825 option_set(o, lun->l_path);
826 } else {
827 o = option_new(&lun->l_options, "file", lun->l_path);
828 assert(o != NULL);
829 }
830 }
831
832 o = option_find(&lun->l_options, "ctld_name");
833 if (o != NULL) {
834 option_set(o, lun->l_name);
835 } else {
836 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
837 assert(o != NULL);
838 }
839
840 o = option_find(&lun->l_options, "scsiname");
841 if (o == NULL && lun->l_scsiname != NULL) {
842 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
843 assert(o != NULL);
844 }
845
846 if (!TAILQ_EMPTY(&lun->l_options)) {
847 req.args_nvl = nvlist_create(0);
848 if (req.args_nvl == NULL) {
849 log_warn("error allocating nvlist");
850 return (1);
851 }
852
853 TAILQ_FOREACH(o, &lun->l_options, o_next)
854 nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
855
856 req.args = nvlist_pack(req.args_nvl, &req.args_len);
857 if (req.args == NULL) {
858 nvlist_destroy(req.args_nvl);
859 log_warn("error packing nvlist");
860 return (1);
861 }
862 }
863
864 error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
865 free(req.args);
866 nvlist_destroy(req.args_nvl);
867
868 if (error != 0) {
869 log_warn("error issuing CTL_LUN_REQ ioctl");
870 return (1);
871 }
872
873 switch (req.status) {
874 case CTL_LUN_ERROR:
875 log_warnx("LUN modification error: %s", req.error_str);
876 return (1);
877 case CTL_LUN_WARNING:
878 log_warnx("LUN modification warning: %s", req.error_str);
879 break;
880 case CTL_LUN_OK:
881 break;
882 default:
883 log_warnx("unknown LUN modification status: %d",
884 req.status);
885 return (1);
886 }
887
888 return (0);
889 }
890
891 int
kernel_lun_remove(struct lun * lun)892 kernel_lun_remove(struct lun *lun)
893 {
894 struct ctl_lun_req req;
895
896 bzero(&req, sizeof(req));
897
898 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
899 req.reqtype = CTL_LUNREQ_RM;
900
901 req.reqdata.rm.lun_id = lun->l_ctl_lun;
902
903 if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
904 log_warn("error issuing CTL_LUN_REQ ioctl");
905 return (1);
906 }
907
908 switch (req.status) {
909 case CTL_LUN_ERROR:
910 log_warnx("LUN removal error: %s", req.error_str);
911 return (1);
912 case CTL_LUN_WARNING:
913 log_warnx("LUN removal warning: %s", req.error_str);
914 break;
915 case CTL_LUN_OK:
916 break;
917 default:
918 log_warnx("unknown LUN removal status: %d", req.status);
919 return (1);
920 }
921
922 return (0);
923 }
924
925 void
kernel_handoff(struct ctld_connection * conn)926 kernel_handoff(struct ctld_connection *conn)
927 {
928 struct ctl_iscsi req;
929
930 bzero(&req, sizeof(req));
931
932 req.type = CTL_ISCSI_HANDOFF;
933 strlcpy(req.data.handoff.initiator_name,
934 conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name));
935 strlcpy(req.data.handoff.initiator_addr,
936 conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr));
937 if (conn->conn_initiator_alias != NULL) {
938 strlcpy(req.data.handoff.initiator_alias,
939 conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias));
940 }
941 memcpy(req.data.handoff.initiator_isid, conn->conn_initiator_isid,
942 sizeof(req.data.handoff.initiator_isid));
943 strlcpy(req.data.handoff.target_name,
944 conn->conn_target->t_name, sizeof(req.data.handoff.target_name));
945 if (conn->conn_portal->p_portal_group->pg_offload != NULL) {
946 strlcpy(req.data.handoff.offload,
947 conn->conn_portal->p_portal_group->pg_offload,
948 sizeof(req.data.handoff.offload));
949 }
950 #ifdef ICL_KERNEL_PROXY
951 if (proxy_mode)
952 req.data.handoff.connection_id = conn->conn.conn_socket;
953 else
954 req.data.handoff.socket = conn->conn.conn_socket;
955 #else
956 req.data.handoff.socket = conn->conn.conn_socket;
957 #endif
958 req.data.handoff.portal_group_tag =
959 conn->conn_portal->p_portal_group->pg_tag;
960 if (conn->conn.conn_header_digest == CONN_DIGEST_CRC32C)
961 req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C;
962 if (conn->conn.conn_data_digest == CONN_DIGEST_CRC32C)
963 req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C;
964 req.data.handoff.cmdsn = conn->conn.conn_cmdsn;
965 req.data.handoff.statsn = conn->conn.conn_statsn;
966 req.data.handoff.max_recv_data_segment_length =
967 conn->conn.conn_max_recv_data_segment_length;
968 req.data.handoff.max_send_data_segment_length =
969 conn->conn.conn_max_send_data_segment_length;
970 req.data.handoff.max_burst_length = conn->conn.conn_max_burst_length;
971 req.data.handoff.first_burst_length =
972 conn->conn.conn_first_burst_length;
973 req.data.handoff.immediate_data = conn->conn.conn_immediate_data;
974
975 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
976 log_err(1, "error issuing CTL_ISCSI ioctl; "
977 "dropping connection");
978 }
979
980 if (req.status != CTL_ISCSI_OK) {
981 log_errx(1, "error returned from CTL iSCSI handoff request: "
982 "%s; dropping connection", req.error_str);
983 }
984 }
985
986 void
kernel_limits(const char * offload,int s,int * max_recv_dsl,int * max_send_dsl,int * max_burst_length,int * first_burst_length)987 kernel_limits(const char *offload, int s, int *max_recv_dsl, int *max_send_dsl,
988 int *max_burst_length, int *first_burst_length)
989 {
990 struct ctl_iscsi req;
991 struct ctl_iscsi_limits_params *cilp;
992
993 bzero(&req, sizeof(req));
994
995 req.type = CTL_ISCSI_LIMITS;
996 cilp = (struct ctl_iscsi_limits_params *)&(req.data.limits);
997 if (offload != NULL) {
998 strlcpy(cilp->offload, offload, sizeof(cilp->offload));
999 }
1000 cilp->socket = s;
1001
1002 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
1003 log_err(1, "error issuing CTL_ISCSI ioctl; "
1004 "dropping connection");
1005 }
1006
1007 if (req.status != CTL_ISCSI_OK) {
1008 log_errx(1, "error returned from CTL iSCSI limits request: "
1009 "%s; dropping connection", req.error_str);
1010 }
1011
1012 if (cilp->max_recv_data_segment_length != 0) {
1013 *max_recv_dsl = cilp->max_recv_data_segment_length;
1014 *max_send_dsl = cilp->max_recv_data_segment_length;
1015 }
1016 if (cilp->max_send_data_segment_length != 0)
1017 *max_send_dsl = cilp->max_send_data_segment_length;
1018 if (cilp->max_burst_length != 0)
1019 *max_burst_length = cilp->max_burst_length;
1020 if (cilp->first_burst_length != 0)
1021 *first_burst_length = cilp->first_burst_length;
1022 if (*max_burst_length < *first_burst_length)
1023 *first_burst_length = *max_burst_length;
1024
1025 if (offload != NULL) {
1026 log_debugx("Kernel limits for offload \"%s\" are "
1027 "MaxRecvDataSegment=%d, max_send_dsl=%d, "
1028 "MaxBurstLength=%d, FirstBurstLength=%d",
1029 offload, *max_recv_dsl, *max_send_dsl, *max_burst_length,
1030 *first_burst_length);
1031 } else {
1032 log_debugx("Kernel limits are "
1033 "MaxRecvDataSegment=%d, max_send_dsl=%d, "
1034 "MaxBurstLength=%d, FirstBurstLength=%d",
1035 *max_recv_dsl, *max_send_dsl, *max_burst_length,
1036 *first_burst_length);
1037 }
1038 }
1039
1040 int
kernel_port_add(struct port * port)1041 kernel_port_add(struct port *port)
1042 {
1043 struct option *o;
1044 struct ctl_port_entry entry;
1045 struct ctl_req req;
1046 struct ctl_lun_map lm;
1047 struct target *targ = port->p_target;
1048 struct portal_group *pg = port->p_portal_group;
1049 char result_buf[NVLIST_BUFSIZE];
1050 int error, i;
1051
1052 /* Create iSCSI port. */
1053 if (port->p_portal_group || port->p_ioctl_port) {
1054 bzero(&req, sizeof(req));
1055 req.reqtype = CTL_REQ_CREATE;
1056
1057 if (port->p_portal_group) {
1058 strlcpy(req.driver, "iscsi", sizeof(req.driver));
1059 req.args_nvl = nvlist_create(0);
1060 nvlist_add_string(req.args_nvl, "cfiscsi_target",
1061 targ->t_name);
1062 nvlist_add_string(req.args_nvl,
1063 "ctld_portal_group_name", pg->pg_name);
1064 nvlist_add_stringf(req.args_nvl,
1065 "cfiscsi_portal_group_tag", "%u", pg->pg_tag);
1066
1067 if (targ->t_alias) {
1068 nvlist_add_string(req.args_nvl,
1069 "cfiscsi_target_alias", targ->t_alias);
1070 }
1071
1072 TAILQ_FOREACH(o, &pg->pg_options, o_next)
1073 nvlist_add_string(req.args_nvl, o->o_name,
1074 o->o_value);
1075 }
1076
1077 if (port->p_ioctl_port) {
1078 strlcpy(req.driver, "ioctl", sizeof(req.driver));
1079 req.args_nvl = nvlist_create(0);
1080 nvlist_add_stringf(req.args_nvl, "pp", "%d",
1081 port->p_ioctl_pp);
1082 nvlist_add_stringf(req.args_nvl, "vp", "%d",
1083 port->p_ioctl_vp);
1084 }
1085
1086 req.args = nvlist_pack(req.args_nvl, &req.args_len);
1087 if (req.args == NULL) {
1088 nvlist_destroy(req.args_nvl);
1089 log_warn("error packing nvlist");
1090 return (1);
1091 }
1092
1093 req.result = result_buf;
1094 req.result_len = sizeof(result_buf);
1095 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
1096 free(req.args);
1097 nvlist_destroy(req.args_nvl);
1098
1099 if (error != 0) {
1100 log_warn("error issuing CTL_PORT_REQ ioctl");
1101 return (1);
1102 }
1103 if (req.status == CTL_LUN_ERROR) {
1104 log_warnx("error returned from port creation request: %s",
1105 req.error_str);
1106 return (1);
1107 }
1108 if (req.status != CTL_LUN_OK) {
1109 log_warnx("unknown port creation request status %d",
1110 req.status);
1111 return (1);
1112 }
1113
1114 req.result_nvl = nvlist_unpack(result_buf, req.result_len, 0);
1115 if (req.result_nvl == NULL) {
1116 log_warnx("error unpacking result nvlist");
1117 return (1);
1118 }
1119
1120 port->p_ctl_port = nvlist_get_number(req.result_nvl, "port_id");
1121 nvlist_destroy(req.result_nvl);
1122 } else if (port->p_pport) {
1123 port->p_ctl_port = port->p_pport->pp_ctl_port;
1124
1125 if (strncmp(targ->t_name, "naa.", 4) == 0 &&
1126 strlen(targ->t_name) == 20) {
1127 bzero(&entry, sizeof(entry));
1128 entry.port_type = CTL_PORT_NONE;
1129 entry.targ_port = port->p_ctl_port;
1130 entry.flags |= CTL_PORT_WWNN_VALID;
1131 entry.wwnn = strtoull(targ->t_name + 4, NULL, 16);
1132 if (ioctl(ctl_fd, CTL_SET_PORT_WWNS, &entry) == -1)
1133 log_warn("CTL_SET_PORT_WWNS ioctl failed");
1134 }
1135 }
1136
1137 /* Explicitly enable mapping to block any access except allowed. */
1138 lm.port = port->p_ctl_port;
1139 lm.plun = UINT32_MAX;
1140 lm.lun = 0;
1141 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1142 if (error != 0)
1143 log_warn("CTL_LUN_MAP ioctl failed");
1144
1145 /* Map configured LUNs */
1146 for (i = 0; i < MAX_LUNS; i++) {
1147 if (targ->t_luns[i] == NULL)
1148 continue;
1149 lm.port = port->p_ctl_port;
1150 lm.plun = i;
1151 lm.lun = targ->t_luns[i]->l_ctl_lun;
1152 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1153 if (error != 0)
1154 log_warn("CTL_LUN_MAP ioctl failed");
1155 }
1156
1157 /* Enable port */
1158 bzero(&entry, sizeof(entry));
1159 entry.targ_port = port->p_ctl_port;
1160 error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry);
1161 if (error != 0) {
1162 log_warn("CTL_ENABLE_PORT ioctl failed");
1163 return (-1);
1164 }
1165
1166 return (0);
1167 }
1168
1169 int
kernel_port_update(struct port * port,struct port * oport)1170 kernel_port_update(struct port *port, struct port *oport)
1171 {
1172 struct ctl_lun_map lm;
1173 struct target *targ = port->p_target;
1174 struct target *otarg = oport->p_target;
1175 int error, i;
1176 uint32_t olun;
1177
1178 /* Map configured LUNs and unmap others */
1179 for (i = 0; i < MAX_LUNS; i++) {
1180 lm.port = port->p_ctl_port;
1181 lm.plun = i;
1182 if (targ->t_luns[i] == NULL)
1183 lm.lun = UINT32_MAX;
1184 else
1185 lm.lun = targ->t_luns[i]->l_ctl_lun;
1186 if (otarg->t_luns[i] == NULL)
1187 olun = UINT32_MAX;
1188 else
1189 olun = otarg->t_luns[i]->l_ctl_lun;
1190 if (lm.lun == olun)
1191 continue;
1192 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1193 if (error != 0)
1194 log_warn("CTL_LUN_MAP ioctl failed");
1195 }
1196 return (0);
1197 }
1198
1199 int
kernel_port_remove(struct port * port)1200 kernel_port_remove(struct port *port)
1201 {
1202 struct ctl_port_entry entry;
1203 struct ctl_lun_map lm;
1204 struct ctl_req req;
1205 struct target *targ = port->p_target;
1206 struct portal_group *pg = port->p_portal_group;
1207 int error;
1208
1209 /* Disable port */
1210 bzero(&entry, sizeof(entry));
1211 entry.targ_port = port->p_ctl_port;
1212 error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry);
1213 if (error != 0) {
1214 log_warn("CTL_DISABLE_PORT ioctl failed");
1215 return (-1);
1216 }
1217
1218 /* Remove iSCSI or ioctl port. */
1219 if (port->p_portal_group || port->p_ioctl_port) {
1220 bzero(&req, sizeof(req));
1221 strlcpy(req.driver, port->p_ioctl_port ? "ioctl" : "iscsi",
1222 sizeof(req.driver));
1223 req.reqtype = CTL_REQ_REMOVE;
1224 req.args_nvl = nvlist_create(0);
1225 if (req.args_nvl == NULL)
1226 log_err(1, "nvlist_create");
1227
1228 if (port->p_ioctl_port)
1229 nvlist_add_stringf(req.args_nvl, "port_id", "%d",
1230 port->p_ctl_port);
1231 else {
1232 nvlist_add_string(req.args_nvl, "cfiscsi_target",
1233 targ->t_name);
1234 nvlist_add_stringf(req.args_nvl,
1235 "cfiscsi_portal_group_tag", "%u", pg->pg_tag);
1236 }
1237
1238 req.args = nvlist_pack(req.args_nvl, &req.args_len);
1239 if (req.args == NULL) {
1240 nvlist_destroy(req.args_nvl);
1241 log_warn("error packing nvlist");
1242 return (1);
1243 }
1244
1245 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
1246 free(req.args);
1247 nvlist_destroy(req.args_nvl);
1248
1249 if (error != 0) {
1250 log_warn("error issuing CTL_PORT_REQ ioctl");
1251 return (1);
1252 }
1253 if (req.status == CTL_LUN_ERROR) {
1254 log_warnx("error returned from port removal request: %s",
1255 req.error_str);
1256 return (1);
1257 }
1258 if (req.status != CTL_LUN_OK) {
1259 log_warnx("unknown port removal request status %d",
1260 req.status);
1261 return (1);
1262 }
1263 } else {
1264 /* Disable LUN mapping. */
1265 lm.port = port->p_ctl_port;
1266 lm.plun = UINT32_MAX;
1267 lm.lun = UINT32_MAX;
1268 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1269 if (error != 0)
1270 log_warn("CTL_LUN_MAP ioctl failed");
1271 }
1272 return (0);
1273 }
1274
1275 #ifdef ICL_KERNEL_PROXY
1276 void
kernel_listen(struct addrinfo * ai,bool iser,int portal_id)1277 kernel_listen(struct addrinfo *ai, bool iser, int portal_id)
1278 {
1279 struct ctl_iscsi req;
1280
1281 bzero(&req, sizeof(req));
1282
1283 req.type = CTL_ISCSI_LISTEN;
1284 req.data.listen.iser = iser;
1285 req.data.listen.domain = ai->ai_family;
1286 req.data.listen.socktype = ai->ai_socktype;
1287 req.data.listen.protocol = ai->ai_protocol;
1288 req.data.listen.addr = ai->ai_addr;
1289 req.data.listen.addrlen = ai->ai_addrlen;
1290 req.data.listen.portal_id = portal_id;
1291
1292 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
1293 log_err(1, "error issuing CTL_ISCSI ioctl");
1294
1295 if (req.status != CTL_ISCSI_OK) {
1296 log_errx(1, "error returned from CTL iSCSI listen: %s",
1297 req.error_str);
1298 }
1299 }
1300
1301 void
kernel_accept(int * connection_id,int * portal_id,struct sockaddr * client_sa,socklen_t * client_salen)1302 kernel_accept(int *connection_id, int *portal_id,
1303 struct sockaddr *client_sa, socklen_t *client_salen)
1304 {
1305 struct ctl_iscsi req;
1306 struct sockaddr_storage ss;
1307
1308 bzero(&req, sizeof(req));
1309
1310 req.type = CTL_ISCSI_ACCEPT;
1311 req.data.accept.initiator_addr = (struct sockaddr *)&ss;
1312
1313 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
1314 log_err(1, "error issuing CTL_ISCSI ioctl");
1315
1316 if (req.status != CTL_ISCSI_OK) {
1317 log_errx(1, "error returned from CTL iSCSI accept: %s",
1318 req.error_str);
1319 }
1320
1321 *connection_id = req.data.accept.connection_id;
1322 *portal_id = req.data.accept.portal_id;
1323 *client_salen = req.data.accept.initiator_addrlen;
1324 memcpy(client_sa, &ss, *client_salen);
1325 }
1326
1327 void
kernel_send(struct pdu * pdu)1328 kernel_send(struct pdu *pdu)
1329 {
1330 struct ctl_iscsi req;
1331
1332 bzero(&req, sizeof(req));
1333
1334 req.type = CTL_ISCSI_SEND;
1335 req.data.send.connection_id = pdu->pdu_connection->conn_socket;
1336 req.data.send.bhs = pdu->pdu_bhs;
1337 req.data.send.data_segment_len = pdu->pdu_data_len;
1338 req.data.send.data_segment = pdu->pdu_data;
1339
1340 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
1341 log_err(1, "error issuing CTL_ISCSI ioctl; "
1342 "dropping connection");
1343 }
1344
1345 if (req.status != CTL_ISCSI_OK) {
1346 log_errx(1, "error returned from CTL iSCSI send: "
1347 "%s; dropping connection", req.error_str);
1348 }
1349 }
1350
1351 void
kernel_receive(struct pdu * pdu)1352 kernel_receive(struct pdu *pdu)
1353 {
1354 struct connection *conn;
1355 struct ctl_iscsi req;
1356
1357 conn = pdu->pdu_connection;
1358 pdu->pdu_data = malloc(conn->conn_max_recv_data_segment_length);
1359 if (pdu->pdu_data == NULL)
1360 log_err(1, "malloc");
1361
1362 bzero(&req, sizeof(req));
1363
1364 req.type = CTL_ISCSI_RECEIVE;
1365 req.data.receive.connection_id = conn->conn_socket;
1366 req.data.receive.bhs = pdu->pdu_bhs;
1367 req.data.receive.data_segment_len =
1368 conn->conn_max_recv_data_segment_length;
1369 req.data.receive.data_segment = pdu->pdu_data;
1370
1371 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
1372 log_err(1, "error issuing CTL_ISCSI ioctl; "
1373 "dropping connection");
1374 }
1375
1376 if (req.status != CTL_ISCSI_OK) {
1377 log_errx(1, "error returned from CTL iSCSI receive: "
1378 "%s; dropping connection", req.error_str);
1379 }
1380
1381 }
1382
1383 #endif /* ICL_KERNEL_PROXY */
1384
1385 /*
1386 * XXX: I CANT INTO LATIN
1387 */
1388 void
kernel_capsicate(void)1389 kernel_capsicate(void)
1390 {
1391 cap_rights_t rights;
1392 const unsigned long cmds[] = { CTL_ISCSI };
1393
1394 cap_rights_init(&rights, CAP_IOCTL);
1395 if (caph_rights_limit(ctl_fd, &rights) < 0)
1396 log_err(1, "cap_rights_limit");
1397
1398 if (caph_ioctls_limit(ctl_fd, cmds, nitems(cmds)) < 0)
1399 log_err(1, "cap_ioctls_limit");
1400
1401 if (caph_enter() < 0)
1402 log_err(1, "cap_enter");
1403
1404 if (cap_sandboxed())
1405 log_debugx("Capsicum capability mode enabled");
1406 else
1407 log_warnx("Capsicum capability mode not supported");
1408 }
1409
1410