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