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