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/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 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 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 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 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 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 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 * 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 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 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 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 896 kernel_handoff(struct ctld_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.conn_socket; 923 else 924 req.data.handoff.socket = conn->conn.conn_socket; 925 #else 926 req.data.handoff.socket = conn->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.conn_header_digest == CONN_DIGEST_CRC32C) 931 req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C; 932 if (conn->conn.conn_data_digest == CONN_DIGEST_CRC32C) 933 req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C; 934 req.data.handoff.cmdsn = conn->conn.conn_cmdsn; 935 req.data.handoff.statsn = conn->conn.conn_statsn; 936 req.data.handoff.max_recv_data_segment_length = 937 conn->conn.conn_max_recv_data_segment_length; 938 req.data.handoff.max_send_data_segment_length = 939 conn->conn.conn_max_send_data_segment_length; 940 req.data.handoff.max_burst_length = conn->conn.conn_max_burst_length; 941 req.data.handoff.first_burst_length = 942 conn->conn.conn_first_burst_length; 943 req.data.handoff.immediate_data = conn->conn.conn_immediate_data; 944 945 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 946 log_err(1, "error issuing CTL_ISCSI ioctl; " 947 "dropping connection"); 948 } 949 950 if (req.status != CTL_ISCSI_OK) { 951 log_errx(1, "error returned from CTL iSCSI handoff request: " 952 "%s; dropping connection", req.error_str); 953 } 954 } 955 956 void 957 kernel_limits(const char *offload, int s, int *max_recv_dsl, int *max_send_dsl, 958 int *max_burst_length, int *first_burst_length) 959 { 960 struct ctl_iscsi req; 961 struct ctl_iscsi_limits_params *cilp; 962 963 bzero(&req, sizeof(req)); 964 965 req.type = CTL_ISCSI_LIMITS; 966 cilp = (struct ctl_iscsi_limits_params *)&(req.data.limits); 967 if (offload != NULL) { 968 strlcpy(cilp->offload, offload, sizeof(cilp->offload)); 969 } 970 cilp->socket = s; 971 972 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 973 log_err(1, "error issuing CTL_ISCSI ioctl; " 974 "dropping connection"); 975 } 976 977 if (req.status != CTL_ISCSI_OK) { 978 log_errx(1, "error returned from CTL iSCSI limits request: " 979 "%s; dropping connection", req.error_str); 980 } 981 982 if (cilp->max_recv_data_segment_length != 0) { 983 *max_recv_dsl = cilp->max_recv_data_segment_length; 984 *max_send_dsl = cilp->max_recv_data_segment_length; 985 } 986 if (cilp->max_send_data_segment_length != 0) 987 *max_send_dsl = cilp->max_send_data_segment_length; 988 if (cilp->max_burst_length != 0) 989 *max_burst_length = cilp->max_burst_length; 990 if (cilp->first_burst_length != 0) 991 *first_burst_length = cilp->first_burst_length; 992 if (*max_burst_length < *first_burst_length) 993 *first_burst_length = *max_burst_length; 994 995 if (offload != NULL) { 996 log_debugx("Kernel limits for offload \"%s\" are " 997 "MaxRecvDataSegment=%d, max_send_dsl=%d, " 998 "MaxBurstLength=%d, FirstBurstLength=%d", 999 offload, *max_recv_dsl, *max_send_dsl, *max_burst_length, 1000 *first_burst_length); 1001 } else { 1002 log_debugx("Kernel limits are " 1003 "MaxRecvDataSegment=%d, max_send_dsl=%d, " 1004 "MaxBurstLength=%d, FirstBurstLength=%d", 1005 *max_recv_dsl, *max_send_dsl, *max_burst_length, 1006 *first_burst_length); 1007 } 1008 } 1009 1010 int 1011 kernel_port_add(struct port *port) 1012 { 1013 struct option *o; 1014 struct ctl_port_entry entry; 1015 struct ctl_req req; 1016 struct ctl_lun_map lm; 1017 struct target *targ = port->p_target; 1018 struct portal_group *pg = port->p_portal_group; 1019 char result_buf[NVLIST_BUFSIZE]; 1020 int error, i; 1021 1022 /* Create iSCSI port. */ 1023 if (port->p_portal_group || port->p_ioctl_port) { 1024 bzero(&req, sizeof(req)); 1025 req.reqtype = CTL_REQ_CREATE; 1026 1027 if (port->p_portal_group) { 1028 strlcpy(req.driver, "iscsi", sizeof(req.driver)); 1029 req.args_nvl = nvlist_create(0); 1030 nvlist_add_string(req.args_nvl, "cfiscsi_target", 1031 targ->t_name); 1032 nvlist_add_string(req.args_nvl, 1033 "ctld_portal_group_name", pg->pg_name); 1034 nvlist_add_stringf(req.args_nvl, 1035 "cfiscsi_portal_group_tag", "%u", pg->pg_tag); 1036 1037 if (targ->t_alias) { 1038 nvlist_add_string(req.args_nvl, 1039 "cfiscsi_target_alias", targ->t_alias); 1040 } 1041 1042 TAILQ_FOREACH(o, &pg->pg_options, o_next) 1043 nvlist_add_string(req.args_nvl, o->o_name, 1044 o->o_value); 1045 } 1046 1047 if (port->p_ioctl_port) { 1048 strlcpy(req.driver, "ioctl", sizeof(req.driver)); 1049 req.args_nvl = nvlist_create(0); 1050 nvlist_add_stringf(req.args_nvl, "pp", "%d", 1051 port->p_ioctl_pp); 1052 nvlist_add_stringf(req.args_nvl, "vp", "%d", 1053 port->p_ioctl_vp); 1054 } 1055 1056 req.args = nvlist_pack(req.args_nvl, &req.args_len); 1057 if (req.args == NULL) { 1058 log_warn("error packing nvlist"); 1059 return (1); 1060 } 1061 1062 req.result = result_buf; 1063 req.result_len = sizeof(result_buf); 1064 error = ioctl(ctl_fd, CTL_PORT_REQ, &req); 1065 nvlist_destroy(req.args_nvl); 1066 1067 if (error != 0) { 1068 log_warn("error issuing CTL_PORT_REQ ioctl"); 1069 return (1); 1070 } 1071 if (req.status == CTL_LUN_ERROR) { 1072 log_warnx("error returned from port creation request: %s", 1073 req.error_str); 1074 return (1); 1075 } 1076 if (req.status != CTL_LUN_OK) { 1077 log_warnx("unknown port creation request status %d", 1078 req.status); 1079 return (1); 1080 } 1081 1082 req.result_nvl = nvlist_unpack(result_buf, req.result_len, 0); 1083 if (req.result_nvl == NULL) { 1084 log_warnx("error unpacking result nvlist"); 1085 return (1); 1086 } 1087 1088 port->p_ctl_port = nvlist_get_number(req.result_nvl, "port_id"); 1089 nvlist_destroy(req.result_nvl); 1090 } else if (port->p_pport) { 1091 port->p_ctl_port = port->p_pport->pp_ctl_port; 1092 1093 if (strncmp(targ->t_name, "naa.", 4) == 0 && 1094 strlen(targ->t_name) == 20) { 1095 bzero(&entry, sizeof(entry)); 1096 entry.port_type = CTL_PORT_NONE; 1097 entry.targ_port = port->p_ctl_port; 1098 entry.flags |= CTL_PORT_WWNN_VALID; 1099 entry.wwnn = strtoull(targ->t_name + 4, NULL, 16); 1100 if (ioctl(ctl_fd, CTL_SET_PORT_WWNS, &entry) == -1) 1101 log_warn("CTL_SET_PORT_WWNS ioctl failed"); 1102 } 1103 } 1104 1105 /* Explicitly enable mapping to block any access except allowed. */ 1106 lm.port = port->p_ctl_port; 1107 lm.plun = UINT32_MAX; 1108 lm.lun = 0; 1109 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm); 1110 if (error != 0) 1111 log_warn("CTL_LUN_MAP ioctl failed"); 1112 1113 /* Map configured LUNs */ 1114 for (i = 0; i < MAX_LUNS; i++) { 1115 if (targ->t_luns[i] == NULL) 1116 continue; 1117 lm.port = port->p_ctl_port; 1118 lm.plun = i; 1119 lm.lun = targ->t_luns[i]->l_ctl_lun; 1120 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm); 1121 if (error != 0) 1122 log_warn("CTL_LUN_MAP ioctl failed"); 1123 } 1124 1125 /* Enable port */ 1126 bzero(&entry, sizeof(entry)); 1127 entry.targ_port = port->p_ctl_port; 1128 error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry); 1129 if (error != 0) { 1130 log_warn("CTL_ENABLE_PORT ioctl failed"); 1131 return (-1); 1132 } 1133 1134 return (0); 1135 } 1136 1137 int 1138 kernel_port_update(struct port *port, struct port *oport) 1139 { 1140 struct ctl_lun_map lm; 1141 struct target *targ = port->p_target; 1142 struct target *otarg = oport->p_target; 1143 int error, i; 1144 uint32_t olun; 1145 1146 /* Map configured LUNs and unmap others */ 1147 for (i = 0; i < MAX_LUNS; i++) { 1148 lm.port = port->p_ctl_port; 1149 lm.plun = i; 1150 if (targ->t_luns[i] == NULL) 1151 lm.lun = UINT32_MAX; 1152 else 1153 lm.lun = targ->t_luns[i]->l_ctl_lun; 1154 if (otarg->t_luns[i] == NULL) 1155 olun = UINT32_MAX; 1156 else 1157 olun = otarg->t_luns[i]->l_ctl_lun; 1158 if (lm.lun == olun) 1159 continue; 1160 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm); 1161 if (error != 0) 1162 log_warn("CTL_LUN_MAP ioctl failed"); 1163 } 1164 return (0); 1165 } 1166 1167 int 1168 kernel_port_remove(struct port *port) 1169 { 1170 struct ctl_port_entry entry; 1171 struct ctl_lun_map lm; 1172 struct ctl_req req; 1173 struct target *targ = port->p_target; 1174 struct portal_group *pg = port->p_portal_group; 1175 int error; 1176 1177 /* Disable port */ 1178 bzero(&entry, sizeof(entry)); 1179 entry.targ_port = port->p_ctl_port; 1180 error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry); 1181 if (error != 0) { 1182 log_warn("CTL_DISABLE_PORT ioctl failed"); 1183 return (-1); 1184 } 1185 1186 /* Remove iSCSI or ioctl port. */ 1187 if (port->p_portal_group || port->p_ioctl_port) { 1188 bzero(&req, sizeof(req)); 1189 strlcpy(req.driver, port->p_ioctl_port ? "ioctl" : "iscsi", 1190 sizeof(req.driver)); 1191 req.reqtype = CTL_REQ_REMOVE; 1192 req.args_nvl = nvlist_create(0); 1193 if (req.args_nvl == NULL) 1194 log_err(1, "nvlist_create"); 1195 1196 if (port->p_ioctl_port) 1197 nvlist_add_stringf(req.args_nvl, "port_id", "%d", 1198 port->p_ctl_port); 1199 else { 1200 nvlist_add_string(req.args_nvl, "cfiscsi_target", 1201 targ->t_name); 1202 nvlist_add_stringf(req.args_nvl, 1203 "cfiscsi_portal_group_tag", "%u", pg->pg_tag); 1204 } 1205 1206 req.args = nvlist_pack(req.args_nvl, &req.args_len); 1207 if (req.args == NULL) { 1208 log_warn("error packing nvlist"); 1209 return (1); 1210 } 1211 1212 error = ioctl(ctl_fd, CTL_PORT_REQ, &req); 1213 nvlist_destroy(req.args_nvl); 1214 1215 if (error != 0) { 1216 log_warn("error issuing CTL_PORT_REQ ioctl"); 1217 return (1); 1218 } 1219 if (req.status == CTL_LUN_ERROR) { 1220 log_warnx("error returned from port removal request: %s", 1221 req.error_str); 1222 return (1); 1223 } 1224 if (req.status != CTL_LUN_OK) { 1225 log_warnx("unknown port removal request status %d", 1226 req.status); 1227 return (1); 1228 } 1229 } else { 1230 /* Disable LUN mapping. */ 1231 lm.port = port->p_ctl_port; 1232 lm.plun = UINT32_MAX; 1233 lm.lun = UINT32_MAX; 1234 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm); 1235 if (error != 0) 1236 log_warn("CTL_LUN_MAP ioctl failed"); 1237 } 1238 return (0); 1239 } 1240 1241 #ifdef ICL_KERNEL_PROXY 1242 void 1243 kernel_listen(struct addrinfo *ai, bool iser, int portal_id) 1244 { 1245 struct ctl_iscsi req; 1246 1247 bzero(&req, sizeof(req)); 1248 1249 req.type = CTL_ISCSI_LISTEN; 1250 req.data.listen.iser = iser; 1251 req.data.listen.domain = ai->ai_family; 1252 req.data.listen.socktype = ai->ai_socktype; 1253 req.data.listen.protocol = ai->ai_protocol; 1254 req.data.listen.addr = ai->ai_addr; 1255 req.data.listen.addrlen = ai->ai_addrlen; 1256 req.data.listen.portal_id = portal_id; 1257 1258 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) 1259 log_err(1, "error issuing CTL_ISCSI ioctl"); 1260 1261 if (req.status != CTL_ISCSI_OK) { 1262 log_errx(1, "error returned from CTL iSCSI listen: %s", 1263 req.error_str); 1264 } 1265 } 1266 1267 void 1268 kernel_accept(int *connection_id, int *portal_id, 1269 struct sockaddr *client_sa, socklen_t *client_salen) 1270 { 1271 struct ctl_iscsi req; 1272 struct sockaddr_storage ss; 1273 1274 bzero(&req, sizeof(req)); 1275 1276 req.type = CTL_ISCSI_ACCEPT; 1277 req.data.accept.initiator_addr = (struct sockaddr *)&ss; 1278 1279 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) 1280 log_err(1, "error issuing CTL_ISCSI ioctl"); 1281 1282 if (req.status != CTL_ISCSI_OK) { 1283 log_errx(1, "error returned from CTL iSCSI accept: %s", 1284 req.error_str); 1285 } 1286 1287 *connection_id = req.data.accept.connection_id; 1288 *portal_id = req.data.accept.portal_id; 1289 *client_salen = req.data.accept.initiator_addrlen; 1290 memcpy(client_sa, &ss, *client_salen); 1291 } 1292 1293 void 1294 kernel_send(struct pdu *pdu) 1295 { 1296 struct ctl_iscsi req; 1297 1298 bzero(&req, sizeof(req)); 1299 1300 req.type = CTL_ISCSI_SEND; 1301 req.data.send.connection_id = pdu->pdu_connection->conn_socket; 1302 req.data.send.bhs = pdu->pdu_bhs; 1303 req.data.send.data_segment_len = pdu->pdu_data_len; 1304 req.data.send.data_segment = pdu->pdu_data; 1305 1306 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 1307 log_err(1, "error issuing CTL_ISCSI ioctl; " 1308 "dropping connection"); 1309 } 1310 1311 if (req.status != CTL_ISCSI_OK) { 1312 log_errx(1, "error returned from CTL iSCSI send: " 1313 "%s; dropping connection", req.error_str); 1314 } 1315 } 1316 1317 void 1318 kernel_receive(struct pdu *pdu) 1319 { 1320 struct connection *conn; 1321 struct ctl_iscsi req; 1322 1323 conn = pdu->pdu_connection; 1324 pdu->pdu_data = malloc(conn->conn_max_recv_data_segment_length); 1325 if (pdu->pdu_data == NULL) 1326 log_err(1, "malloc"); 1327 1328 bzero(&req, sizeof(req)); 1329 1330 req.type = CTL_ISCSI_RECEIVE; 1331 req.data.receive.connection_id = conn->conn_socket; 1332 req.data.receive.bhs = pdu->pdu_bhs; 1333 req.data.receive.data_segment_len = 1334 conn->conn_max_recv_data_segment_length; 1335 req.data.receive.data_segment = pdu->pdu_data; 1336 1337 if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 1338 log_err(1, "error issuing CTL_ISCSI ioctl; " 1339 "dropping connection"); 1340 } 1341 1342 if (req.status != CTL_ISCSI_OK) { 1343 log_errx(1, "error returned from CTL iSCSI receive: " 1344 "%s; dropping connection", req.error_str); 1345 } 1346 1347 } 1348 1349 #endif /* ICL_KERNEL_PROXY */ 1350 1351 /* 1352 * XXX: I CANT INTO LATIN 1353 */ 1354 void 1355 kernel_capsicate(void) 1356 { 1357 cap_rights_t rights; 1358 const unsigned long cmds[] = { CTL_ISCSI }; 1359 1360 cap_rights_init(&rights, CAP_IOCTL); 1361 if (caph_rights_limit(ctl_fd, &rights) < 0) 1362 log_err(1, "cap_rights_limit"); 1363 1364 if (caph_ioctls_limit(ctl_fd, cmds, nitems(cmds)) < 0) 1365 log_err(1, "cap_ioctls_limit"); 1366 1367 if (caph_enter() < 0) 1368 log_err(1, "cap_enter"); 1369 1370 if (cap_sandboxed()) 1371 log_debugx("Capsicum capability mode enabled"); 1372 else 1373 log_warnx("Capsicum capability mode not supported"); 1374 } 1375 1376