1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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/cdefs.h>
41 __FBSDID("$FreeBSD: stable/12/usr.sbin/ctld/kernel.c 363822 2020-08-04 02:31:52Z mav $");
42
43 #include <sys/param.h>
44 #include <sys/capsicum.h>
45 #include <sys/callout.h>
46 #include <sys/ioctl.h>
47 #include <sys/linker.h>
48 #include <sys/module.h>
49 #include <sys/queue.h>
50 #include <sys/sbuf.h>
51 #include <sys/nv.h>
52 #include <sys/stat.h>
53 #include <assert.h>
54 #include <bsdxml.h>
55 #include <ctype.h>
56 #include <errno.h>
57 #include <fcntl.h>
58 #include <stdint.h>
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 #include <strings.h>
63 #include <cam/scsi/scsi_all.h>
64 #include <cam/scsi/scsi_message.h>
65 #include <cam/ctl/ctl.h>
66 #include <cam/ctl/ctl_io.h>
67 #include <cam/ctl/ctl_backend.h>
68 #include <cam/ctl/ctl_ioctl.h>
69 #include <cam/ctl/ctl_util.h>
70 #include <cam/ctl/ctl_scsi_all.h>
71
72 #include "ctld.h"
73
74 #ifdef ICL_KERNEL_PROXY
75 #include <netdb.h>
76 #endif
77
78 #define NVLIST_BUFSIZE 1024
79
80 extern bool proxy_mode;
81
82 static int ctl_fd = 0;
83
84 void
kernel_init(void)85 kernel_init(void)
86 {
87 int retval, saved_errno;
88
89 ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
90 if (ctl_fd < 0 && errno == ENOENT) {
91 saved_errno = errno;
92 retval = kldload("ctl");
93 if (retval != -1)
94 ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
95 else
96 errno = saved_errno;
97 }
98 if (ctl_fd < 0)
99 log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
100 #ifdef WANT_ISCSI
101 else {
102 saved_errno = errno;
103 if (modfind("cfiscsi") == -1 && kldload("cfiscsi") == -1)
104 log_warn("couldn't load cfiscsi");
105 errno = saved_errno;
106 }
107 #endif
108 }
109
110 /*
111 * Name/value pair used for per-LUN attributes.
112 */
113 struct cctl_lun_nv {
114 char *name;
115 char *value;
116 STAILQ_ENTRY(cctl_lun_nv) links;
117 };
118
119 /*
120 * Backend LUN information.
121 */
122 struct cctl_lun {
123 uint64_t lun_id;
124 char *backend_type;
125 uint8_t device_type;
126 uint64_t size_blocks;
127 uint32_t blocksize;
128 char *serial_number;
129 char *device_id;
130 char *ctld_name;
131 STAILQ_HEAD(,cctl_lun_nv) attr_list;
132 STAILQ_ENTRY(cctl_lun) links;
133 };
134
135 struct cctl_port {
136 uint32_t port_id;
137 char *port_frontend;
138 char *port_name;
139 int pp;
140 int vp;
141 int cfiscsi_state;
142 char *cfiscsi_target;
143 uint16_t cfiscsi_portal_group_tag;
144 char *ctld_portal_group_name;
145 STAILQ_HEAD(,cctl_lun_nv) attr_list;
146 STAILQ_ENTRY(cctl_port) links;
147 };
148
149 struct cctl_devlist_data {
150 int num_luns;
151 STAILQ_HEAD(,cctl_lun) lun_list;
152 struct cctl_lun *cur_lun;
153 int num_ports;
154 STAILQ_HEAD(,cctl_port) port_list;
155 struct cctl_port *cur_port;
156 int level;
157 struct sbuf *cur_sb[32];
158 };
159
160 static void
cctl_start_element(void * user_data,const char * name,const char ** attr)161 cctl_start_element(void *user_data, const char *name, const char **attr)
162 {
163 int i;
164 struct cctl_devlist_data *devlist;
165 struct cctl_lun *cur_lun;
166
167 devlist = (struct cctl_devlist_data *)user_data;
168 cur_lun = devlist->cur_lun;
169 devlist->level++;
170 if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
171 sizeof(devlist->cur_sb[0])))
172 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
173 sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
174
175 devlist->cur_sb[devlist->level] = sbuf_new_auto();
176 if (devlist->cur_sb[devlist->level] == NULL)
177 log_err(1, "%s: unable to allocate sbuf", __func__);
178
179 if (strcmp(name, "lun") == 0) {
180 if (cur_lun != NULL)
181 log_errx(1, "%s: improper lun element nesting",
182 __func__);
183
184 cur_lun = calloc(1, sizeof(*cur_lun));
185 if (cur_lun == NULL)
186 log_err(1, "%s: cannot allocate %zd bytes", __func__,
187 sizeof(*cur_lun));
188
189 devlist->num_luns++;
190 devlist->cur_lun = cur_lun;
191
192 STAILQ_INIT(&cur_lun->attr_list);
193 STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links);
194
195 for (i = 0; attr[i] != NULL; i += 2) {
196 if (strcmp(attr[i], "id") == 0) {
197 cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
198 } else {
199 log_errx(1, "%s: invalid LUN attribute %s = %s",
200 __func__, attr[i], attr[i+1]);
201 }
202 }
203 }
204 }
205
206 static void
cctl_end_element(void * user_data,const char * name)207 cctl_end_element(void *user_data, const char *name)
208 {
209 struct cctl_devlist_data *devlist;
210 struct cctl_lun *cur_lun;
211 char *str;
212
213 devlist = (struct cctl_devlist_data *)user_data;
214 cur_lun = devlist->cur_lun;
215
216 if ((cur_lun == NULL)
217 && (strcmp(name, "ctllunlist") != 0))
218 log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
219
220 if (devlist->cur_sb[devlist->level] == NULL)
221 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
222 devlist->level, name);
223
224 sbuf_finish(devlist->cur_sb[devlist->level]);
225 str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
226
227 if (strlen(str) == 0) {
228 free(str);
229 str = NULL;
230 }
231
232 sbuf_delete(devlist->cur_sb[devlist->level]);
233 devlist->cur_sb[devlist->level] = NULL;
234 devlist->level--;
235
236 if (strcmp(name, "backend_type") == 0) {
237 cur_lun->backend_type = str;
238 str = NULL;
239 } else if (strcmp(name, "lun_type") == 0) {
240 cur_lun->device_type = strtoull(str, NULL, 0);
241 } else if (strcmp(name, "size") == 0) {
242 cur_lun->size_blocks = strtoull(str, NULL, 0);
243 } else if (strcmp(name, "blocksize") == 0) {
244 cur_lun->blocksize = strtoul(str, NULL, 0);
245 } else if (strcmp(name, "serial_number") == 0) {
246 cur_lun->serial_number = str;
247 str = NULL;
248 } else if (strcmp(name, "device_id") == 0) {
249 cur_lun->device_id = str;
250 str = NULL;
251 } else if (strcmp(name, "ctld_name") == 0) {
252 cur_lun->ctld_name = str;
253 str = NULL;
254 } else if (strcmp(name, "lun") == 0) {
255 devlist->cur_lun = NULL;
256 } else if (strcmp(name, "ctllunlist") == 0) {
257 /* Nothing. */
258 } else {
259 struct cctl_lun_nv *nv;
260
261 nv = calloc(1, sizeof(*nv));
262 if (nv == NULL)
263 log_err(1, "%s: can't allocate %zd bytes for nv pair",
264 __func__, sizeof(*nv));
265
266 nv->name = checked_strdup(name);
267
268 nv->value = str;
269 str = NULL;
270 STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links);
271 }
272
273 free(str);
274 }
275
276 static void
cctl_start_pelement(void * user_data,const char * name,const char ** attr)277 cctl_start_pelement(void *user_data, const char *name, const char **attr)
278 {
279 int i;
280 struct cctl_devlist_data *devlist;
281 struct cctl_port *cur_port;
282
283 devlist = (struct cctl_devlist_data *)user_data;
284 cur_port = devlist->cur_port;
285 devlist->level++;
286 if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
287 sizeof(devlist->cur_sb[0])))
288 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
289 sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
290
291 devlist->cur_sb[devlist->level] = sbuf_new_auto();
292 if (devlist->cur_sb[devlist->level] == NULL)
293 log_err(1, "%s: unable to allocate sbuf", __func__);
294
295 if (strcmp(name, "targ_port") == 0) {
296 if (cur_port != NULL)
297 log_errx(1, "%s: improper port element nesting (%s)",
298 __func__, name);
299
300 cur_port = calloc(1, sizeof(*cur_port));
301 if (cur_port == NULL)
302 log_err(1, "%s: cannot allocate %zd bytes", __func__,
303 sizeof(*cur_port));
304
305 devlist->num_ports++;
306 devlist->cur_port = cur_port;
307
308 STAILQ_INIT(&cur_port->attr_list);
309 STAILQ_INSERT_TAIL(&devlist->port_list, cur_port, links);
310
311 for (i = 0; attr[i] != NULL; i += 2) {
312 if (strcmp(attr[i], "id") == 0) {
313 cur_port->port_id = strtoul(attr[i+1], NULL, 0);
314 } else {
315 log_errx(1, "%s: invalid LUN attribute %s = %s",
316 __func__, attr[i], attr[i+1]);
317 }
318 }
319 }
320 }
321
322 static void
cctl_end_pelement(void * user_data,const char * name)323 cctl_end_pelement(void *user_data, const char *name)
324 {
325 struct cctl_devlist_data *devlist;
326 struct cctl_port *cur_port;
327 char *str;
328
329 devlist = (struct cctl_devlist_data *)user_data;
330 cur_port = devlist->cur_port;
331
332 if ((cur_port == NULL)
333 && (strcmp(name, "ctlportlist") != 0))
334 log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
335
336 if (devlist->cur_sb[devlist->level] == NULL)
337 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
338 devlist->level, name);
339
340 sbuf_finish(devlist->cur_sb[devlist->level]);
341 str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
342
343 if (strlen(str) == 0) {
344 free(str);
345 str = NULL;
346 }
347
348 sbuf_delete(devlist->cur_sb[devlist->level]);
349 devlist->cur_sb[devlist->level] = NULL;
350 devlist->level--;
351
352 if (strcmp(name, "frontend_type") == 0) {
353 cur_port->port_frontend = str;
354 str = NULL;
355 } else if (strcmp(name, "port_name") == 0) {
356 cur_port->port_name = str;
357 str = NULL;
358 } else if (strcmp(name, "physical_port") == 0) {
359 cur_port->pp = strtoul(str, NULL, 0);
360 } else if (strcmp(name, "virtual_port") == 0) {
361 cur_port->vp = strtoul(str, NULL, 0);
362 } else if (strcmp(name, "cfiscsi_target") == 0) {
363 cur_port->cfiscsi_target = str;
364 str = NULL;
365 } else if (strcmp(name, "cfiscsi_state") == 0) {
366 cur_port->cfiscsi_state = strtoul(str, NULL, 0);
367 } else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
368 cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
369 } else if (strcmp(name, "ctld_portal_group_name") == 0) {
370 cur_port->ctld_portal_group_name = str;
371 str = NULL;
372 } else if (strcmp(name, "targ_port") == 0) {
373 devlist->cur_port = NULL;
374 } else if (strcmp(name, "ctlportlist") == 0) {
375 /* Nothing. */
376 } else {
377 struct cctl_lun_nv *nv;
378
379 nv = calloc(1, sizeof(*nv));
380 if (nv == NULL)
381 log_err(1, "%s: can't allocate %zd bytes for nv pair",
382 __func__, sizeof(*nv));
383
384 nv->name = checked_strdup(name);
385
386 nv->value = str;
387 str = NULL;
388 STAILQ_INSERT_TAIL(&cur_port->attr_list, nv, links);
389 }
390
391 free(str);
392 }
393
394 static void
cctl_char_handler(void * user_data,const XML_Char * str,int len)395 cctl_char_handler(void *user_data, const XML_Char *str, int len)
396 {
397 struct cctl_devlist_data *devlist;
398
399 devlist = (struct cctl_devlist_data *)user_data;
400
401 sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
402 }
403
404 struct conf *
conf_new_from_kernel(void)405 conf_new_from_kernel(void)
406 {
407 struct conf *conf = NULL;
408 struct target *targ;
409 struct portal_group *pg;
410 struct pport *pp;
411 struct port *cp;
412 struct lun *cl;
413 struct option *o;
414 struct ctl_lun_list list;
415 struct cctl_devlist_data devlist;
416 struct cctl_lun *lun;
417 struct cctl_port *port;
418 XML_Parser parser;
419 char *str, *name;
420 int len, retval;
421
422 bzero(&devlist, sizeof(devlist));
423 STAILQ_INIT(&devlist.lun_list);
424 STAILQ_INIT(&devlist.port_list);
425
426 log_debugx("obtaining previously configured CTL luns from the kernel");
427
428 str = NULL;
429 len = 4096;
430 retry:
431 str = realloc(str, len);
432 if (str == NULL)
433 log_err(1, "realloc");
434
435 bzero(&list, sizeof(list));
436 list.alloc_len = len;
437 list.status = CTL_LUN_LIST_NONE;
438 list.lun_xml = str;
439
440 if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
441 log_warn("error issuing CTL_LUN_LIST ioctl");
442 free(str);
443 return (NULL);
444 }
445
446 if (list.status == CTL_LUN_LIST_ERROR) {
447 log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
448 list.error_str);
449 free(str);
450 return (NULL);
451 }
452
453 if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
454 len = len << 1;
455 goto retry;
456 }
457
458 parser = XML_ParserCreate(NULL);
459 if (parser == NULL) {
460 log_warnx("unable to create XML parser");
461 free(str);
462 return (NULL);
463 }
464
465 XML_SetUserData(parser, &devlist);
466 XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
467 XML_SetCharacterDataHandler(parser, cctl_char_handler);
468
469 retval = XML_Parse(parser, str, strlen(str), 1);
470 XML_ParserFree(parser);
471 free(str);
472 if (retval != 1) {
473 log_warnx("XML_Parse failed");
474 return (NULL);
475 }
476
477 str = NULL;
478 len = 4096;
479 retry_port:
480 str = realloc(str, len);
481 if (str == NULL)
482 log_err(1, "realloc");
483
484 bzero(&list, sizeof(list));
485 list.alloc_len = len;
486 list.status = CTL_LUN_LIST_NONE;
487 list.lun_xml = str;
488
489 if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
490 log_warn("error issuing CTL_PORT_LIST ioctl");
491 free(str);
492 return (NULL);
493 }
494
495 if (list.status == CTL_LUN_LIST_ERROR) {
496 log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
497 list.error_str);
498 free(str);
499 return (NULL);
500 }
501
502 if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
503 len = len << 1;
504 goto retry_port;
505 }
506
507 parser = XML_ParserCreate(NULL);
508 if (parser == NULL) {
509 log_warnx("unable to create XML parser");
510 free(str);
511 return (NULL);
512 }
513
514 XML_SetUserData(parser, &devlist);
515 XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
516 XML_SetCharacterDataHandler(parser, cctl_char_handler);
517
518 retval = XML_Parse(parser, str, strlen(str), 1);
519 XML_ParserFree(parser);
520 free(str);
521 if (retval != 1) {
522 log_warnx("XML_Parse failed");
523 return (NULL);
524 }
525
526 conf = conf_new();
527
528 name = NULL;
529 STAILQ_FOREACH(port, &devlist.port_list, links) {
530 if (strcmp(port->port_frontend, "ha") == 0)
531 continue;
532 free(name);
533 if (port->pp == 0 && port->vp == 0) {
534 name = checked_strdup(port->port_name);
535 } else if (port->vp == 0) {
536 retval = asprintf(&name, "%s/%d",
537 port->port_name, port->pp);
538 if (retval <= 0)
539 log_err(1, "asprintf");
540 } else {
541 retval = asprintf(&name, "%s/%d/%d",
542 port->port_name, port->pp, port->vp);
543 if (retval <= 0)
544 log_err(1, "asprintf");
545 }
546
547 if (port->cfiscsi_target == NULL) {
548 log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
549 port->port_id, name);
550 pp = pport_find(conf, name);
551 if (pp == NULL) {
552 #if 0
553 log_debugx("found new kernel port %u \"%s\"",
554 port->port_id, name);
555 #endif
556 pp = pport_new(conf, name, port->port_id);
557 if (pp == NULL) {
558 log_warnx("pport_new failed");
559 continue;
560 }
561 }
562 continue;
563 }
564 if (port->cfiscsi_state != 1) {
565 log_debugx("CTL port %ju is not active (%d); ignoring",
566 (uintmax_t)port->port_id, port->cfiscsi_state);
567 continue;
568 }
569
570 targ = target_find(conf, port->cfiscsi_target);
571 if (targ == NULL) {
572 #if 0
573 log_debugx("found new kernel target %s for CTL port %ld",
574 port->cfiscsi_target, port->port_id);
575 #endif
576 targ = target_new(conf, port->cfiscsi_target);
577 if (targ == NULL) {
578 log_warnx("target_new failed");
579 continue;
580 }
581 }
582
583 if (port->ctld_portal_group_name == NULL)
584 continue;
585 pg = portal_group_find(conf, port->ctld_portal_group_name);
586 if (pg == NULL) {
587 #if 0
588 log_debugx("found new kernel portal group %s for CTL port %ld",
589 port->ctld_portal_group_name, port->port_id);
590 #endif
591 pg = portal_group_new(conf, port->ctld_portal_group_name);
592 if (pg == NULL) {
593 log_warnx("portal_group_new failed");
594 continue;
595 }
596 }
597 pg->pg_tag = port->cfiscsi_portal_group_tag;
598 cp = port_new(conf, targ, pg);
599 if (cp == NULL) {
600 log_warnx("port_new failed");
601 continue;
602 }
603 cp->p_ctl_port = port->port_id;
604 }
605 free(name);
606
607 STAILQ_FOREACH(lun, &devlist.lun_list, links) {
608 struct cctl_lun_nv *nv;
609
610 if (lun->ctld_name == NULL) {
611 log_debugx("CTL lun %ju wasn't managed by ctld; "
612 "ignoring", (uintmax_t)lun->lun_id);
613 continue;
614 }
615
616 cl = lun_find(conf, lun->ctld_name);
617 if (cl != NULL) {
618 log_warnx("found CTL lun %ju \"%s\", "
619 "also backed by CTL lun %d; ignoring",
620 (uintmax_t)lun->lun_id, lun->ctld_name,
621 cl->l_ctl_lun);
622 continue;
623 }
624
625 log_debugx("found CTL lun %ju \"%s\"",
626 (uintmax_t)lun->lun_id, lun->ctld_name);
627
628 cl = lun_new(conf, lun->ctld_name);
629 if (cl == NULL) {
630 log_warnx("lun_new failed");
631 continue;
632 }
633 lun_set_backend(cl, lun->backend_type);
634 lun_set_device_type(cl, lun->device_type);
635 lun_set_blocksize(cl, lun->blocksize);
636 lun_set_device_id(cl, lun->device_id);
637 lun_set_serial(cl, lun->serial_number);
638 lun_set_size(cl, lun->size_blocks * cl->l_blocksize);
639 lun_set_ctl_lun(cl, lun->lun_id);
640
641 STAILQ_FOREACH(nv, &lun->attr_list, links) {
642 if (strcmp(nv->name, "file") == 0 ||
643 strcmp(nv->name, "dev") == 0) {
644 lun_set_path(cl, nv->value);
645 continue;
646 }
647 o = option_new(&cl->l_options, nv->name, nv->value);
648 if (o == NULL)
649 log_warnx("unable to add CTL lun option %s "
650 "for CTL lun %ju \"%s\"",
651 nv->name, (uintmax_t) lun->lun_id,
652 cl->l_name);
653 }
654 }
655
656 return (conf);
657 }
658
659 int
kernel_lun_add(struct lun * lun)660 kernel_lun_add(struct lun *lun)
661 {
662 struct option *o;
663 struct ctl_lun_req req;
664 int error;
665
666 bzero(&req, sizeof(req));
667
668 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
669 req.reqtype = CTL_LUNREQ_CREATE;
670
671 req.reqdata.create.blocksize_bytes = lun->l_blocksize;
672
673 if (lun->l_size != 0)
674 req.reqdata.create.lun_size_bytes = lun->l_size;
675
676 if (lun->l_ctl_lun >= 0) {
677 req.reqdata.create.req_lun_id = lun->l_ctl_lun;
678 req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
679 }
680
681 req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
682 req.reqdata.create.device_type = lun->l_device_type;
683
684 if (lun->l_serial != NULL) {
685 strncpy(req.reqdata.create.serial_num, lun->l_serial,
686 sizeof(req.reqdata.create.serial_num));
687 req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
688 }
689
690 if (lun->l_device_id != NULL) {
691 strncpy(req.reqdata.create.device_id, lun->l_device_id,
692 sizeof(req.reqdata.create.device_id));
693 req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
694 }
695
696 if (lun->l_path != NULL) {
697 o = option_find(&lun->l_options, "file");
698 if (o != NULL) {
699 option_set(o, lun->l_path);
700 } else {
701 o = option_new(&lun->l_options, "file", lun->l_path);
702 assert(o != NULL);
703 }
704 }
705
706 o = option_find(&lun->l_options, "ctld_name");
707 if (o != NULL) {
708 option_set(o, lun->l_name);
709 } else {
710 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
711 assert(o != NULL);
712 }
713
714 o = option_find(&lun->l_options, "scsiname");
715 if (o == NULL && lun->l_scsiname != NULL) {
716 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
717 assert(o != NULL);
718 }
719
720 if (!TAILQ_EMPTY(&lun->l_options)) {
721 req.args_nvl = nvlist_create(0);
722 if (req.args_nvl == NULL) {
723 log_warn("error allocating nvlist");
724 return (1);
725 }
726
727 TAILQ_FOREACH(o, &lun->l_options, o_next)
728 nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
729
730 req.args = nvlist_pack(req.args_nvl, &req.args_len);
731 if (req.args == NULL) {
732 log_warn("error packing nvlist");
733 return (1);
734 }
735 }
736
737 error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
738 nvlist_destroy(req.args_nvl);
739
740 if (error != 0) {
741 log_warn("error issuing CTL_LUN_REQ ioctl");
742 return (1);
743 }
744
745 switch (req.status) {
746 case CTL_LUN_ERROR:
747 log_warnx("LUN creation error: %s", req.error_str);
748 return (1);
749 case CTL_LUN_WARNING:
750 log_warnx("LUN creation warning: %s", req.error_str);
751 break;
752 case CTL_LUN_OK:
753 break;
754 default:
755 log_warnx("unknown LUN creation status: %d",
756 req.status);
757 return (1);
758 }
759
760 lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id);
761 return (0);
762 }
763
764 int
kernel_lun_modify(struct lun * lun)765 kernel_lun_modify(struct lun *lun)
766 {
767 struct option *o;
768 struct ctl_lun_req req;
769 int error;
770
771 bzero(&req, sizeof(req));
772
773 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
774 req.reqtype = CTL_LUNREQ_MODIFY;
775
776 req.reqdata.modify.lun_id = lun->l_ctl_lun;
777 req.reqdata.modify.lun_size_bytes = lun->l_size;
778
779 if (lun->l_path != NULL) {
780 o = option_find(&lun->l_options, "file");
781 if (o != NULL) {
782 option_set(o, lun->l_path);
783 } else {
784 o = option_new(&lun->l_options, "file", lun->l_path);
785 assert(o != NULL);
786 }
787 }
788
789 o = option_find(&lun->l_options, "ctld_name");
790 if (o != NULL) {
791 option_set(o, lun->l_name);
792 } else {
793 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
794 assert(o != NULL);
795 }
796
797 o = option_find(&lun->l_options, "scsiname");
798 if (o == NULL && lun->l_scsiname != NULL) {
799 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
800 assert(o != NULL);
801 }
802
803 if (!TAILQ_EMPTY(&lun->l_options)) {
804 req.args_nvl = nvlist_create(0);
805 if (req.args_nvl == NULL) {
806 log_warn("error allocating nvlist");
807 return (1);
808 }
809
810 TAILQ_FOREACH(o, &lun->l_options, o_next)
811 nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
812
813 req.args = nvlist_pack(req.args_nvl, &req.args_len);
814 if (req.args == NULL) {
815 log_warn("error packing nvlist");
816 return (1);
817 }
818 }
819
820 error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
821 nvlist_destroy(req.args_nvl);
822
823 if (error != 0) {
824 log_warn("error issuing CTL_LUN_REQ ioctl");
825 return (1);
826 }
827
828 switch (req.status) {
829 case CTL_LUN_ERROR:
830 log_warnx("LUN modification error: %s", req.error_str);
831 return (1);
832 case CTL_LUN_WARNING:
833 log_warnx("LUN modification warning: %s", req.error_str);
834 break;
835 case CTL_LUN_OK:
836 break;
837 default:
838 log_warnx("unknown LUN modification status: %d",
839 req.status);
840 return (1);
841 }
842
843 return (0);
844 }
845
846 int
kernel_lun_remove(struct lun * lun)847 kernel_lun_remove(struct lun *lun)
848 {
849 struct ctl_lun_req req;
850
851 bzero(&req, sizeof(req));
852
853 strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
854 req.reqtype = CTL_LUNREQ_RM;
855
856 req.reqdata.rm.lun_id = lun->l_ctl_lun;
857
858 if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
859 log_warn("error issuing CTL_LUN_REQ ioctl");
860 return (1);
861 }
862
863 switch (req.status) {
864 case CTL_LUN_ERROR:
865 log_warnx("LUN removal error: %s", req.error_str);
866 return (1);
867 case CTL_LUN_WARNING:
868 log_warnx("LUN removal warning: %s", req.error_str);
869 break;
870 case CTL_LUN_OK:
871 break;
872 default:
873 log_warnx("unknown LUN removal status: %d", req.status);
874 return (1);
875 }
876
877 return (0);
878 }
879
880 void
kernel_handoff(struct connection * conn)881 kernel_handoff(struct connection *conn)
882 {
883 struct ctl_iscsi req;
884
885 bzero(&req, sizeof(req));
886
887 req.type = CTL_ISCSI_HANDOFF;
888 strlcpy(req.data.handoff.initiator_name,
889 conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name));
890 strlcpy(req.data.handoff.initiator_addr,
891 conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr));
892 if (conn->conn_initiator_alias != NULL) {
893 strlcpy(req.data.handoff.initiator_alias,
894 conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias));
895 }
896 memcpy(req.data.handoff.initiator_isid, conn->conn_initiator_isid,
897 sizeof(req.data.handoff.initiator_isid));
898 strlcpy(req.data.handoff.target_name,
899 conn->conn_target->t_name, sizeof(req.data.handoff.target_name));
900 if (conn->conn_portal->p_portal_group->pg_offload != NULL) {
901 strlcpy(req.data.handoff.offload,
902 conn->conn_portal->p_portal_group->pg_offload,
903 sizeof(req.data.handoff.offload));
904 }
905 #ifdef ICL_KERNEL_PROXY
906 if (proxy_mode)
907 req.data.handoff.connection_id = conn->conn_socket;
908 else
909 req.data.handoff.socket = conn->conn_socket;
910 #else
911 req.data.handoff.socket = conn->conn_socket;
912 #endif
913 req.data.handoff.portal_group_tag =
914 conn->conn_portal->p_portal_group->pg_tag;
915 if (conn->conn_header_digest == CONN_DIGEST_CRC32C)
916 req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C;
917 if (conn->conn_data_digest == CONN_DIGEST_CRC32C)
918 req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C;
919 req.data.handoff.cmdsn = conn->conn_cmdsn;
920 req.data.handoff.statsn = conn->conn_statsn;
921 req.data.handoff.max_recv_data_segment_length =
922 conn->conn_max_recv_data_segment_length;
923 req.data.handoff.max_send_data_segment_length =
924 conn->conn_max_send_data_segment_length;
925 req.data.handoff.max_burst_length = conn->conn_max_burst_length;
926 req.data.handoff.first_burst_length = conn->conn_first_burst_length;
927 req.data.handoff.immediate_data = conn->conn_immediate_data;
928
929 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
930 log_err(1, "error issuing CTL_ISCSI ioctl; "
931 "dropping connection");
932 }
933
934 if (req.status != CTL_ISCSI_OK) {
935 log_errx(1, "error returned from CTL iSCSI handoff request: "
936 "%s; dropping connection", req.error_str);
937 }
938 }
939
940 void
kernel_limits(const char * offload,int * max_recv_dsl,int * max_send_dsl,int * max_burst_length,int * first_burst_length)941 kernel_limits(const char *offload, int *max_recv_dsl, int *max_send_dsl,
942 int *max_burst_length, int *first_burst_length)
943 {
944 struct ctl_iscsi req;
945 struct ctl_iscsi_limits_params *cilp;
946
947 bzero(&req, sizeof(req));
948
949 req.type = CTL_ISCSI_LIMITS;
950 cilp = (struct ctl_iscsi_limits_params *)&(req.data.limits);
951 if (offload != NULL) {
952 strlcpy(cilp->offload, offload, sizeof(cilp->offload));
953 }
954
955 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
956 log_err(1, "error issuing CTL_ISCSI ioctl; "
957 "dropping connection");
958 }
959
960 if (req.status != CTL_ISCSI_OK) {
961 log_errx(1, "error returned from CTL iSCSI limits request: "
962 "%s; dropping connection", req.error_str);
963 }
964
965 if (cilp->max_recv_data_segment_length != 0) {
966 *max_recv_dsl = cilp->max_recv_data_segment_length;
967 *max_send_dsl = cilp->max_recv_data_segment_length;
968 }
969 if (cilp->max_send_data_segment_length != 0)
970 *max_send_dsl = cilp->max_send_data_segment_length;
971 if (cilp->max_burst_length != 0)
972 *max_burst_length = cilp->max_burst_length;
973 if (cilp->first_burst_length != 0)
974 *first_burst_length = cilp->first_burst_length;
975 if (*max_burst_length < *first_burst_length)
976 *first_burst_length = *max_burst_length;
977
978 if (offload != NULL) {
979 log_debugx("Kernel limits for offload \"%s\" are "
980 "MaxRecvDataSegment=%d, max_send_dsl=%d, "
981 "MaxBurstLength=%d, FirstBurstLength=%d",
982 offload, *max_recv_dsl, *max_send_dsl, *max_burst_length,
983 *first_burst_length);
984 } else {
985 log_debugx("Kernel limits are "
986 "MaxRecvDataSegment=%d, max_send_dsl=%d, "
987 "MaxBurstLength=%d, FirstBurstLength=%d",
988 *max_recv_dsl, *max_send_dsl, *max_burst_length,
989 *first_burst_length);
990 }
991 }
992
993 int
kernel_port_add(struct port * port)994 kernel_port_add(struct port *port)
995 {
996 struct option *o;
997 struct ctl_port_entry entry;
998 struct ctl_req req;
999 struct ctl_lun_map lm;
1000 struct target *targ = port->p_target;
1001 struct portal_group *pg = port->p_portal_group;
1002 char result_buf[NVLIST_BUFSIZE];
1003 int error, i;
1004
1005 /* Create iSCSI port. */
1006 if (port->p_portal_group || port->p_ioctl_port) {
1007 bzero(&req, sizeof(req));
1008 req.reqtype = CTL_REQ_CREATE;
1009
1010 if (port->p_portal_group) {
1011 strlcpy(req.driver, "iscsi", sizeof(req.driver));
1012 req.args_nvl = nvlist_create(0);
1013 nvlist_add_string(req.args_nvl, "cfiscsi_target",
1014 targ->t_name);
1015 nvlist_add_string(req.args_nvl,
1016 "ctld_portal_group_name", pg->pg_name);
1017 nvlist_add_stringf(req.args_nvl,
1018 "cfiscsi_portal_group_tag", "%u", pg->pg_tag);
1019
1020 if (targ->t_alias) {
1021 nvlist_add_string(req.args_nvl,
1022 "cfiscsi_target_alias", targ->t_alias);
1023 }
1024
1025 TAILQ_FOREACH(o, &pg->pg_options, o_next)
1026 nvlist_add_string(req.args_nvl, o->o_name,
1027 o->o_value);
1028 }
1029
1030 if (port->p_ioctl_port) {
1031 strlcpy(req.driver, "ioctl", sizeof(req.driver));
1032 req.args_nvl = nvlist_create(0);
1033 nvlist_add_stringf(req.args_nvl, "pp", "%d",
1034 port->p_ioctl_pp);
1035 nvlist_add_stringf(req.args_nvl, "vp", "%d",
1036 port->p_ioctl_vp);
1037 }
1038
1039 req.args = nvlist_pack(req.args_nvl, &req.args_len);
1040 if (req.args == NULL) {
1041 log_warn("error packing nvlist");
1042 return (1);
1043 }
1044
1045 req.result = result_buf;
1046 req.result_len = sizeof(result_buf);
1047 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
1048 nvlist_destroy(req.args_nvl);
1049
1050 if (error != 0) {
1051 log_warn("error issuing CTL_PORT_REQ ioctl");
1052 return (1);
1053 }
1054 if (req.status == CTL_LUN_ERROR) {
1055 log_warnx("error returned from port creation request: %s",
1056 req.error_str);
1057 return (1);
1058 }
1059 if (req.status != CTL_LUN_OK) {
1060 log_warnx("unknown port creation request status %d",
1061 req.status);
1062 return (1);
1063 }
1064
1065 req.result_nvl = nvlist_unpack(result_buf, req.result_len, 0);
1066 if (req.result_nvl == NULL) {
1067 log_warnx("error unpacking result nvlist");
1068 return (1);
1069 }
1070
1071 port->p_ctl_port = nvlist_get_number(req.result_nvl, "port_id");
1072 nvlist_destroy(req.result_nvl);
1073 } else if (port->p_pport) {
1074 port->p_ctl_port = port->p_pport->pp_ctl_port;
1075
1076 if (strncmp(targ->t_name, "naa.", 4) == 0 &&
1077 strlen(targ->t_name) == 20) {
1078 bzero(&entry, sizeof(entry));
1079 entry.port_type = CTL_PORT_NONE;
1080 entry.targ_port = port->p_ctl_port;
1081 entry.flags |= CTL_PORT_WWNN_VALID;
1082 entry.wwnn = strtoull(targ->t_name + 4, NULL, 16);
1083 if (ioctl(ctl_fd, CTL_SET_PORT_WWNS, &entry) == -1)
1084 log_warn("CTL_SET_PORT_WWNS ioctl failed");
1085 }
1086 }
1087
1088 /* Explicitly enable mapping to block any access except allowed. */
1089 lm.port = port->p_ctl_port;
1090 lm.plun = UINT32_MAX;
1091 lm.lun = 0;
1092 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1093 if (error != 0)
1094 log_warn("CTL_LUN_MAP ioctl failed");
1095
1096 /* Map configured LUNs */
1097 for (i = 0; i < MAX_LUNS; i++) {
1098 if (targ->t_luns[i] == NULL)
1099 continue;
1100 lm.port = port->p_ctl_port;
1101 lm.plun = i;
1102 lm.lun = targ->t_luns[i]->l_ctl_lun;
1103 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1104 if (error != 0)
1105 log_warn("CTL_LUN_MAP ioctl failed");
1106 }
1107
1108 /* Enable port */
1109 bzero(&entry, sizeof(entry));
1110 entry.targ_port = port->p_ctl_port;
1111 error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry);
1112 if (error != 0) {
1113 log_warn("CTL_ENABLE_PORT ioctl failed");
1114 return (-1);
1115 }
1116
1117 return (0);
1118 }
1119
1120 int
kernel_port_update(struct port * port,struct port * oport)1121 kernel_port_update(struct port *port, struct port *oport)
1122 {
1123 struct ctl_lun_map lm;
1124 struct target *targ = port->p_target;
1125 struct target *otarg = oport->p_target;
1126 int error, i;
1127 uint32_t olun;
1128
1129 /* Map configured LUNs and unmap others */
1130 for (i = 0; i < MAX_LUNS; i++) {
1131 lm.port = port->p_ctl_port;
1132 lm.plun = i;
1133 if (targ->t_luns[i] == NULL)
1134 lm.lun = UINT32_MAX;
1135 else
1136 lm.lun = targ->t_luns[i]->l_ctl_lun;
1137 if (otarg->t_luns[i] == NULL)
1138 olun = UINT32_MAX;
1139 else
1140 olun = otarg->t_luns[i]->l_ctl_lun;
1141 if (lm.lun == olun)
1142 continue;
1143 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1144 if (error != 0)
1145 log_warn("CTL_LUN_MAP ioctl failed");
1146 }
1147 return (0);
1148 }
1149
1150 int
kernel_port_remove(struct port * port)1151 kernel_port_remove(struct port *port)
1152 {
1153 struct ctl_port_entry entry;
1154 struct ctl_lun_map lm;
1155 struct ctl_req req;
1156 struct target *targ = port->p_target;
1157 struct portal_group *pg = port->p_portal_group;
1158 int error;
1159
1160 /* Disable port */
1161 bzero(&entry, sizeof(entry));
1162 entry.targ_port = port->p_ctl_port;
1163 error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry);
1164 if (error != 0) {
1165 log_warn("CTL_DISABLE_PORT ioctl failed");
1166 return (-1);
1167 }
1168
1169 /* Remove iSCSI or ioctl port. */
1170 if (port->p_portal_group || port->p_ioctl_port) {
1171 bzero(&req, sizeof(req));
1172 strlcpy(req.driver, port->p_ioctl_port ? "ioctl" : "iscsi",
1173 sizeof(req.driver));
1174 req.reqtype = CTL_REQ_REMOVE;
1175 req.args_nvl = nvlist_create(0);
1176 if (req.args_nvl == NULL)
1177 log_err(1, "nvlist_create");
1178
1179 if (port->p_ioctl_port)
1180 nvlist_add_stringf(req.args_nvl, "port_id", "%d",
1181 port->p_ctl_port);
1182 else {
1183 nvlist_add_string(req.args_nvl, "cfiscsi_target",
1184 targ->t_name);
1185 nvlist_add_stringf(req.args_nvl,
1186 "cfiscsi_portal_group_tag", "%u", pg->pg_tag);
1187 }
1188
1189 req.args = nvlist_pack(req.args_nvl, &req.args_len);
1190 if (req.args == NULL) {
1191 log_warn("error packing nvlist");
1192 return (1);
1193 }
1194
1195 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
1196 nvlist_destroy(req.args_nvl);
1197
1198 if (error != 0) {
1199 log_warn("error issuing CTL_PORT_REQ ioctl");
1200 return (1);
1201 }
1202 if (req.status == CTL_LUN_ERROR) {
1203 log_warnx("error returned from port removal request: %s",
1204 req.error_str);
1205 return (1);
1206 }
1207 if (req.status != CTL_LUN_OK) {
1208 log_warnx("unknown port removal request status %d",
1209 req.status);
1210 return (1);
1211 }
1212 } else {
1213 /* Disable LUN mapping. */
1214 lm.port = port->p_ctl_port;
1215 lm.plun = UINT32_MAX;
1216 lm.lun = UINT32_MAX;
1217 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
1218 if (error != 0)
1219 log_warn("CTL_LUN_MAP ioctl failed");
1220 }
1221 return (0);
1222 }
1223
1224 #ifdef ICL_KERNEL_PROXY
1225 void
kernel_listen(struct addrinfo * ai,bool iser,int portal_id)1226 kernel_listen(struct addrinfo *ai, bool iser, int portal_id)
1227 {
1228 struct ctl_iscsi req;
1229
1230 bzero(&req, sizeof(req));
1231
1232 req.type = CTL_ISCSI_LISTEN;
1233 req.data.listen.iser = iser;
1234 req.data.listen.domain = ai->ai_family;
1235 req.data.listen.socktype = ai->ai_socktype;
1236 req.data.listen.protocol = ai->ai_protocol;
1237 req.data.listen.addr = ai->ai_addr;
1238 req.data.listen.addrlen = ai->ai_addrlen;
1239 req.data.listen.portal_id = portal_id;
1240
1241 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
1242 log_err(1, "error issuing CTL_ISCSI ioctl");
1243
1244 if (req.status != CTL_ISCSI_OK) {
1245 log_errx(1, "error returned from CTL iSCSI listen: %s",
1246 req.error_str);
1247 }
1248 }
1249
1250 void
kernel_accept(int * connection_id,int * portal_id,struct sockaddr * client_sa,socklen_t * client_salen)1251 kernel_accept(int *connection_id, int *portal_id,
1252 struct sockaddr *client_sa, socklen_t *client_salen)
1253 {
1254 struct ctl_iscsi req;
1255 struct sockaddr_storage ss;
1256
1257 bzero(&req, sizeof(req));
1258
1259 req.type = CTL_ISCSI_ACCEPT;
1260 req.data.accept.initiator_addr = (struct sockaddr *)&ss;
1261
1262 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
1263 log_err(1, "error issuing CTL_ISCSI ioctl");
1264
1265 if (req.status != CTL_ISCSI_OK) {
1266 log_errx(1, "error returned from CTL iSCSI accept: %s",
1267 req.error_str);
1268 }
1269
1270 *connection_id = req.data.accept.connection_id;
1271 *portal_id = req.data.accept.portal_id;
1272 *client_salen = req.data.accept.initiator_addrlen;
1273 memcpy(client_sa, &ss, *client_salen);
1274 }
1275
1276 void
kernel_send(struct pdu * pdu)1277 kernel_send(struct pdu *pdu)
1278 {
1279 struct ctl_iscsi req;
1280
1281 bzero(&req, sizeof(req));
1282
1283 req.type = CTL_ISCSI_SEND;
1284 req.data.send.connection_id = pdu->pdu_connection->conn_socket;
1285 req.data.send.bhs = pdu->pdu_bhs;
1286 req.data.send.data_segment_len = pdu->pdu_data_len;
1287 req.data.send.data_segment = pdu->pdu_data;
1288
1289 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
1290 log_err(1, "error issuing CTL_ISCSI ioctl; "
1291 "dropping connection");
1292 }
1293
1294 if (req.status != CTL_ISCSI_OK) {
1295 log_errx(1, "error returned from CTL iSCSI send: "
1296 "%s; dropping connection", req.error_str);
1297 }
1298 }
1299
1300 void
kernel_receive(struct pdu * pdu)1301 kernel_receive(struct pdu *pdu)
1302 {
1303 struct connection *conn;
1304 struct ctl_iscsi req;
1305
1306 conn = pdu->pdu_connection;
1307 pdu->pdu_data = malloc(conn->conn_max_recv_data_segment_length);
1308 if (pdu->pdu_data == NULL)
1309 log_err(1, "malloc");
1310
1311 bzero(&req, sizeof(req));
1312
1313 req.type = CTL_ISCSI_RECEIVE;
1314 req.data.receive.connection_id = conn->conn_socket;
1315 req.data.receive.bhs = pdu->pdu_bhs;
1316 req.data.receive.data_segment_len =
1317 conn->conn_max_recv_data_segment_length;
1318 req.data.receive.data_segment = pdu->pdu_data;
1319
1320 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
1321 log_err(1, "error issuing CTL_ISCSI ioctl; "
1322 "dropping connection");
1323 }
1324
1325 if (req.status != CTL_ISCSI_OK) {
1326 log_errx(1, "error returned from CTL iSCSI receive: "
1327 "%s; dropping connection", req.error_str);
1328 }
1329
1330 }
1331
1332 #endif /* ICL_KERNEL_PROXY */
1333
1334 /*
1335 * XXX: I CANT INTO LATIN
1336 */
1337 void
kernel_capsicate(void)1338 kernel_capsicate(void)
1339 {
1340 int error;
1341 cap_rights_t rights;
1342 const unsigned long cmds[] = { CTL_ISCSI };
1343
1344 cap_rights_init(&rights, CAP_IOCTL);
1345 error = cap_rights_limit(ctl_fd, &rights);
1346 if (error != 0 && errno != ENOSYS)
1347 log_err(1, "cap_rights_limit");
1348
1349 error = cap_ioctls_limit(ctl_fd, cmds, nitems(cmds));
1350
1351 if (error != 0 && errno != ENOSYS)
1352 log_err(1, "cap_ioctls_limit");
1353
1354 error = cap_enter();
1355 if (error != 0 && errno != ENOSYS)
1356 log_err(1, "cap_enter");
1357
1358 if (cap_sandboxed())
1359 log_debugx("Capsicum capability mode enabled");
1360 else
1361 log_warnx("Capsicum capability mode not supported");
1362 }
1363
1364