usr.sbin/ctld/kernel.c

   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 #include <sys/param.h>
  42 #include <sys/capsicum.h>
  43 #include <sys/callout.h>
  44 #include <sys/ioctl.h>
  45 #include <sys/linker.h>
  46 #include <sys/module.h>
  47 #include <sys/queue.h>
  48 #include <sys/sbuf.h>
  49 #include <sys/nv.h>
  50 #include <sys/stat.h>
  51 #include <assert.h>
  52 #include <bsdxml.h>
  53 #include <capsicum_helpers.h>
  54 #include <ctype.h>
  55 #include <errno.h>
  56 #include <fcntl.h>
  57 #include <stdint.h>
  58 #include <stdio.h>
  59 #include <stdlib.h>
  60 #include <string.h>
  61 #include <strings.h>
  62 #include <cam/scsi/scsi_all.h>
  63 #include <cam/scsi/scsi_message.h>
  64 #include <cam/ctl/ctl.h>
  65 #include <cam/ctl/ctl_io.h>
  66 #include <cam/ctl/ctl_backend.h>
  67 #include <cam/ctl/ctl_ioctl.h>
  68 #include <cam/ctl/ctl_util.h>
  69 #include <cam/ctl/ctl_scsi_all.h>
  70
  71 #include "ctld.h"
  72
  73 #ifdef ICL_KERNEL_PROXY
  74 #include <netdb.h>
  75 #endif
  76
  77 #define NVLIST_BUFSIZE  1024
  78
  79 extern bool proxy_mode;
  80
  81 static int      ctl_fd = 0;
  82
  83 void
  84 kernel_init(void)
  85 {
  86         int retval, saved_errno;
  87
  88         ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
  89         if (ctl_fd < 0 && errno == ENOENT) {
  90                 saved_errno = errno;
  91                 retval = kldload("ctl");
  92                 if (retval != -1)
  93                         ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
  94                 else
  95                         errno = saved_errno;
  96         }
  97         if (ctl_fd < 0)
  98                 log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
  99 #ifdef  WANT_ISCSI
 100         else {
 101                 saved_errno = errno;
 102                 if (modfind("cfiscsi") == -1 && kldload("cfiscsi") == -1)
 103                         log_warn("couldn't load cfiscsi");
 104                 errno = saved_errno;
 105         }
 106 #endif
 107 }
 108
 109 /*
 110  * Name/value pair used for per-LUN attributes.
 111  */
 112 struct cctl_lun_nv {
 113         char *name;
 114         char *value;
 115         STAILQ_ENTRY(cctl_lun_nv) links;
 116 };
 117
 118 /*
 119  * Backend LUN information.
 120  */
 121 struct cctl_lun {
 122         uint64_t lun_id;
 123         char *backend_type;
 124         uint8_t device_type;
 125         uint64_t size_blocks;
 126         uint32_t blocksize;
 127         char *serial_number;
 128         char *device_id;
 129         char *ctld_name;
 130         STAILQ_HEAD(,cctl_lun_nv) attr_list;
 131         STAILQ_ENTRY(cctl_lun) links;
 132 };
 133
 134 struct cctl_port {
 135         uint32_t port_id;
 136         char *port_frontend;
 137         char *port_name;
 138         int pp;
 139         int vp;
 140         int cfiscsi_state;
 141         char *cfiscsi_target;
 142         uint16_t cfiscsi_portal_group_tag;
 143         char *ctld_portal_group_name;
 144         STAILQ_HEAD(,cctl_lun_nv) attr_list;
 145         STAILQ_ENTRY(cctl_port) links;
 146 };
 147
 148 struct cctl_devlist_data {
 149         int num_luns;
 150         STAILQ_HEAD(,cctl_lun) lun_list;
 151         struct cctl_lun *cur_lun;
 152         int num_ports;
 153         STAILQ_HEAD(,cctl_port) port_list;
 154         struct cctl_port *cur_port;
 155         int level;
 156         struct sbuf *cur_sb[32];
 157 };
 158
 159 static void
 160 cctl_start_element(void *user_data, const char *name, const char **attr)
 161 {
 162         int i;
 163         struct cctl_devlist_data *devlist;
 164         struct cctl_lun *cur_lun;
 165
 166         devlist = (struct cctl_devlist_data *)user_data;
 167         cur_lun = devlist->cur_lun;
 168         devlist->level++;
 169         if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
 170             sizeof(devlist->cur_sb[0])))
 171                 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
 172                      sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
 173
 174         devlist->cur_sb[devlist->level] = sbuf_new_auto();
 175         if (devlist->cur_sb[devlist->level] == NULL)
 176                 log_err(1, "%s: unable to allocate sbuf", __func__);
 177
 178         if (strcmp(name, "lun") == 0) {
 179                 if (cur_lun != NULL)
 180                         log_errx(1, "%s: improper lun element nesting",
 181                             __func__);
 182
 183                 cur_lun = calloc(1, sizeof(*cur_lun));
 184                 if (cur_lun == NULL)
 185                         log_err(1, "%s: cannot allocate %zd bytes", __func__,
 186                             sizeof(*cur_lun));
 187
 188                 devlist->num_luns++;
 189                 devlist->cur_lun = cur_lun;
 190
 191                 STAILQ_INIT(&cur_lun->attr_list);
 192                 STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links);
 193
 194                 for (i = 0; attr[i] != NULL; i += 2) {
 195                         if (strcmp(attr[i], "id") == 0) {
 196                                 cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
 197                         } else {
 198                                 log_errx(1, "%s: invalid LUN attribute %s = %s",
 199                                      __func__, attr[i], attr[i+1]);
 200                         }
 201                 }
 202         }
 203 }
 204
 205 static void
 206 cctl_end_element(void *user_data, const char *name)
 207 {
 208         struct cctl_devlist_data *devlist;
 209         struct cctl_lun *cur_lun;
 210         char *str;
 211
 212         devlist = (struct cctl_devlist_data *)user_data;
 213         cur_lun = devlist->cur_lun;
 214
 215         if ((cur_lun == NULL)
 216          && (strcmp(name, "ctllunlist") != 0))
 217                 log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
 218
 219         if (devlist->cur_sb[devlist->level] == NULL)
 220                 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
 221                      devlist->level, name);
 222
 223         sbuf_finish(devlist->cur_sb[devlist->level]);
 224         str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
 225
 226         if (strlen(str) == 0) {
 227                 free(str);
 228                 str = NULL;
 229         }
 230
 231         sbuf_delete(devlist->cur_sb[devlist->level]);
 232         devlist->cur_sb[devlist->level] = NULL;
 233         devlist->level--;
 234
 235         if (strcmp(name, "backend_type") == 0) {
 236                 cur_lun->backend_type = str;
 237                 str = NULL;
 238         } else if (strcmp(name, "lun_type") == 0) {
 239                 if (str == NULL)
 240                         log_errx(1, "%s: %s missing its argument", __func__, name);
 241                 cur_lun->device_type = strtoull(str, NULL, 0);
 242         } else if (strcmp(name, "size") == 0) {
 243                 if (str == NULL)
 244                         log_errx(1, "%s: %s missing its argument", __func__, name);
 245                 cur_lun->size_blocks = strtoull(str, NULL, 0);
 246         } else if (strcmp(name, "blocksize") == 0) {
 247                 if (str == NULL)
 248                         log_errx(1, "%s: %s missing its argument", __func__, name);
 249                 cur_lun->blocksize = strtoul(str, NULL, 0);
 250         } else if (strcmp(name, "serial_number") == 0) {
 251                 cur_lun->serial_number = str;
 252                 str = NULL;
 253         } else if (strcmp(name, "device_id") == 0) {
 254                 cur_lun->device_id = str;
 255                 str = NULL;
 256         } else if (strcmp(name, "ctld_name") == 0) {
 257                 cur_lun->ctld_name = str;
 258                 str = NULL;
 259         } else if (strcmp(name, "lun") == 0) {
 260                 devlist->cur_lun = NULL;
 261         } else if (strcmp(name, "ctllunlist") == 0) {
 262                 /* Nothing. */
 263         } else {
 264                 struct cctl_lun_nv *nv;
 265
 266                 nv = calloc(1, sizeof(*nv));
 267                 if (nv == NULL)
 268                         log_err(1, "%s: can't allocate %zd bytes for nv pair",
 269                             __func__, sizeof(*nv));
 270
 271                 nv->name = checked_strdup(name);
 272
 273                 nv->value = str;
 274                 str = NULL;
 275                 STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links);
 276         }
 277
 278         free(str);
 279 }
 280
 281 static void
 282 cctl_start_pelement(void *user_data, const char *name, const char **attr)
 283 {
 284         int i;
 285         struct cctl_devlist_data *devlist;
 286         struct cctl_port *cur_port;
 287
 288         devlist = (struct cctl_devlist_data *)user_data;
 289         cur_port = devlist->cur_port;
 290         devlist->level++;
 291         if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
 292             sizeof(devlist->cur_sb[0])))
 293                 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
 294                      sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
 295
 296         devlist->cur_sb[devlist->level] = sbuf_new_auto();
 297         if (devlist->cur_sb[devlist->level] == NULL)
 298                 log_err(1, "%s: unable to allocate sbuf", __func__);
 299
 300         if (strcmp(name, "targ_port") == 0) {
 301                 if (cur_port != NULL)
 302                         log_errx(1, "%s: improper port element nesting (%s)",
 303                             __func__, name);
 304
 305                 cur_port = calloc(1, sizeof(*cur_port));
 306                 if (cur_port == NULL)
 307                         log_err(1, "%s: cannot allocate %zd bytes", __func__,
 308                             sizeof(*cur_port));
 309
 310                 devlist->num_ports++;
 311                 devlist->cur_port = cur_port;
 312
 313                 STAILQ_INIT(&cur_port->attr_list);
 314                 STAILQ_INSERT_TAIL(&devlist->port_list, cur_port, links);
 315
 316                 for (i = 0; attr[i] != NULL; i += 2) {
 317                         if (strcmp(attr[i], "id") == 0) {
 318                                 cur_port->port_id = strtoul(attr[i+1], NULL, 0);
 319                         } else {
 320                                 log_errx(1, "%s: invalid LUN attribute %s = %s",
 321                                      __func__, attr[i], attr[i+1]);
 322                         }
 323                 }
 324         }
 325 }
 326
 327 static void
 328 cctl_end_pelement(void *user_data, const char *name)
 329 {
 330         struct cctl_devlist_data *devlist;
 331         struct cctl_port *cur_port;
 332         char *str;
 333
 334         devlist = (struct cctl_devlist_data *)user_data;
 335         cur_port = devlist->cur_port;
 336
 337         if ((cur_port == NULL)
 338          && (strcmp(name, "ctlportlist") != 0))
 339                 log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
 340
 341         if (devlist->cur_sb[devlist->level] == NULL)
 342                 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
 343                      devlist->level, name);
 344
 345         sbuf_finish(devlist->cur_sb[devlist->level]);
 346         str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
 347
 348         if (strlen(str) == 0) {
 349                 free(str);
 350                 str = NULL;
 351         }
 352
 353         sbuf_delete(devlist->cur_sb[devlist->level]);
 354         devlist->cur_sb[devlist->level] = NULL;
 355         devlist->level--;
 356
 357         if (strcmp(name, "frontend_type") == 0) {
 358                 cur_port->port_frontend = str;
 359                 str = NULL;
 360         } else if (strcmp(name, "port_name") == 0) {
 361                 cur_port->port_name = str;
 362                 str = NULL;
 363         } else if (strcmp(name, "physical_port") == 0) {
 364                 if (str == NULL)
 365                         log_errx(1, "%s: %s missing its argument", __func__, name);
 366                 cur_port->pp = strtoul(str, NULL, 0);
 367         } else if (strcmp(name, "virtual_port") == 0) {
 368                 if (str == NULL)
 369                         log_errx(1, "%s: %s missing its argument", __func__, name);
 370                 cur_port->vp = strtoul(str, NULL, 0);
 371         } else if (strcmp(name, "cfiscsi_target") == 0) {
 372                 cur_port->cfiscsi_target = str;
 373                 str = NULL;
 374         } else if (strcmp(name, "cfiscsi_state") == 0) {
 375                 if (str == NULL)
 376                         log_errx(1, "%s: %s missing its argument", __func__, name);
 377                 cur_port->cfiscsi_state = strtoul(str, NULL, 0);
 378         } else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
 379                 if (str == NULL)
 380                         log_errx(1, "%s: %s missing its argument", __func__, name);
 381                 cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
 382         } else if (strcmp(name, "ctld_portal_group_name") == 0) {
 383                 cur_port->ctld_portal_group_name = str;
 384                 str = NULL;
 385         } else if (strcmp(name, "targ_port") == 0) {
 386                 devlist->cur_port = NULL;
 387         } else if (strcmp(name, "ctlportlist") == 0) {
 388                 /* Nothing. */
 389         } else {
 390                 struct cctl_lun_nv *nv;
 391
 392                 nv = calloc(1, sizeof(*nv));
 393                 if (nv == NULL)
 394                         log_err(1, "%s: can't allocate %zd bytes for nv pair",
 395                             __func__, sizeof(*nv));
 396
 397                 nv->name = checked_strdup(name);
 398
 399                 nv->value = str;
 400                 str = NULL;
 401                 STAILQ_INSERT_TAIL(&cur_port->attr_list, nv, links);
 402         }
 403
 404         free(str);
 405 }
 406
 407 static void
 408 cctl_char_handler(void *user_data, const XML_Char *str, int len)
 409 {
 410         struct cctl_devlist_data *devlist;
 411
 412         devlist = (struct cctl_devlist_data *)user_data;
 413
 414         sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
 415 }
 416
 417 struct conf *
 418 conf_new_from_kernel(void)
 419 {
 420         struct conf *conf = NULL;
 421         struct target *targ;
 422         struct portal_group *pg;
 423         struct pport *pp;
 424         struct port *cp;
 425         struct lun *cl;
 426         struct option *o;
 427         struct ctl_lun_list list;
 428         struct cctl_devlist_data devlist;
 429         struct cctl_lun *lun;
 430         struct cctl_port *port;
 431         XML_Parser parser;
 432         char *str, *name;
 433         int len, retval;
 434
 435         bzero(&devlist, sizeof(devlist));
 436         STAILQ_INIT(&devlist.lun_list);
 437         STAILQ_INIT(&devlist.port_list);
 438
 439         log_debugx("obtaining previously configured CTL luns from the kernel");
 440
 441         str = NULL;
 442         len = 4096;
 443 retry:
 444         str = realloc(str, len);
 445         if (str == NULL)
 446                 log_err(1, "realloc");
 447
 448         bzero(&list, sizeof(list));
 449         list.alloc_len = len;
 450         list.status = CTL_LUN_LIST_NONE;
 451         list.lun_xml = str;
 452
 453         if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
 454                 log_warn("error issuing CTL_LUN_LIST ioctl");
 455                 free(str);
 456                 return (NULL);
 457         }
 458
 459         if (list.status == CTL_LUN_LIST_ERROR) {
 460                 log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
 461                     list.error_str);
 462                 free(str);
 463                 return (NULL);
 464         }
 465
 466         if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
 467                 len = len << 1;
 468                 goto retry;
 469         }
 470
 471         parser = XML_ParserCreate(NULL);
 472         if (parser == NULL) {
 473                 log_warnx("unable to create XML parser");
 474                 free(str);
 475                 return (NULL);
 476         }
 477
 478         XML_SetUserData(parser, &devlist);
 479         XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
 480         XML_SetCharacterDataHandler(parser, cctl_char_handler);
 481
 482         retval = XML_Parse(parser, str, strlen(str), 1);
 483         XML_ParserFree(parser);
 484         free(str);
 485         if (retval != 1) {
 486                 log_warnx("XML_Parse failed");
 487                 return (NULL);
 488         }
 489
 490         str = NULL;
 491         len = 4096;
 492 retry_port:
 493         str = realloc(str, len);
 494         if (str == NULL)
 495                 log_err(1, "realloc");
 496
 497         bzero(&list, sizeof(list));
 498         list.alloc_len = len;
 499         list.status = CTL_LUN_LIST_NONE;
 500         list.lun_xml = str;
 501
 502         if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
 503                 log_warn("error issuing CTL_PORT_LIST ioctl");
 504                 free(str);
 505                 return (NULL);
 506         }
 507
 508         if (list.status == CTL_LUN_LIST_ERROR) {
 509                 log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
 510                     list.error_str);
 511                 free(str);
 512                 return (NULL);
 513         }
 514
 515         if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
 516                 len = len << 1;
 517                 goto retry_port;
 518         }
 519
 520         parser = XML_ParserCreate(NULL);
 521         if (parser == NULL) {
 522                 log_warnx("unable to create XML parser");
 523                 free(str);
 524                 return (NULL);
 525         }
 526
 527         XML_SetUserData(parser, &devlist);
 528         XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
 529         XML_SetCharacterDataHandler(parser, cctl_char_handler);
 530
 531         retval = XML_Parse(parser, str, strlen(str), 1);
 532         XML_ParserFree(parser);
 533         free(str);
 534         if (retval != 1) {
 535                 log_warnx("XML_Parse failed");
 536                 return (NULL);
 537         }
 538
 539         conf = conf_new();
 540
 541         name = NULL;
 542         STAILQ_FOREACH(port, &devlist.port_list, links) {
 543                 if (strcmp(port->port_frontend, "ha") == 0)
 544                         continue;
 545                 free(name);
 546                 if (port->pp == 0 && port->vp == 0) {
 547                         name = checked_strdup(port->port_name);
 548                 } else if (port->vp == 0) {
 549                         retval = asprintf(&name, "%s/%d",
 550                             port->port_name, port->pp);
 551                         if (retval <= 0)
 552                                 log_err(1, "asprintf");
 553                 } else {
 554                         retval = asprintf(&name, "%s/%d/%d",
 555                             port->port_name, port->pp, port->vp);
 556                         if (retval <= 0)
 557                                 log_err(1, "asprintf");
 558                 }
 559
 560                 if (port->cfiscsi_target == NULL) {
 561                         log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
 562                             port->port_id, name);
 563                         pp = pport_find(conf, name);
 564                         if (pp == NULL) {
 565 #if 0
 566                                 log_debugx("found new kernel port %u \"%s\"",
 567                                     port->port_id, name);
 568 #endif
 569                                 pp = pport_new(conf, name, port->port_id);
 570                                 if (pp == NULL) {
 571                                         log_warnx("pport_new failed");
 572                                         continue;
 573                                 }
 574                         }
 575                         continue;
 576                 }
 577                 if (port->cfiscsi_state != 1) {
 578                         log_debugx("CTL port %ju is not active (%d); ignoring",
 579                             (uintmax_t)port->port_id, port->cfiscsi_state);
 580                         continue;
 581                 }
 582
 583                 targ = target_find(conf, port->cfiscsi_target);
 584                 if (targ == NULL) {
 585 #if 0
 586                         log_debugx("found new kernel target %s for CTL port %ld",
 587                             port->cfiscsi_target, port->port_id);
 588 #endif
 589                         targ = target_new(conf, port->cfiscsi_target);
 590                         if (targ == NULL) {
 591                                 log_warnx("target_new failed");
 592                                 continue;
 593                         }
 594                 }
 595
 596                 if (port->ctld_portal_group_name == NULL)
 597                         continue;
 598                 pg = portal_group_find(conf, port->ctld_portal_group_name);
 599                 if (pg == NULL) {
 600 #if 0
 601                         log_debugx("found new kernel portal group %s for CTL port %ld",
 602                             port->ctld_portal_group_name, port->port_id);
 603 #endif
 604                         pg = portal_group_new(conf, port->ctld_portal_group_name);
 605                         if (pg == NULL) {
 606                                 log_warnx("portal_group_new failed");
 607                                 continue;
 608                         }
 609                 }
 610                 pg->pg_tag = port->cfiscsi_portal_group_tag;
 611                 cp = port_new(conf, targ, pg);
 612                 if (cp == NULL) {
 613                         log_warnx("port_new failed");
 614                         continue;
 615                 }
 616                 cp->p_ctl_port = port->port_id;
 617         }
 618         free(name);
 619
 620         STAILQ_FOREACH(lun, &devlist.lun_list, links) {
 621                 struct cctl_lun_nv *nv;
 622
 623                 if (lun->ctld_name == NULL) {
 624                         log_debugx("CTL lun %ju wasn't managed by ctld; "
 625                             "ignoring", (uintmax_t)lun->lun_id);
 626                         continue;
 627                 }
 628
 629                 cl = lun_find(conf, lun->ctld_name);
 630                 if (cl != NULL) {
 631                         log_warnx("found CTL lun %ju \"%s\", "
 632                             "also backed by CTL lun %d; ignoring",
 633                             (uintmax_t)lun->lun_id, lun->ctld_name,
 634                             cl->l_ctl_lun);
 635                         continue;
 636                 }
 637
 638                 log_debugx("found CTL lun %ju \"%s\"",
 639                     (uintmax_t)lun->lun_id, lun->ctld_name);
 640
 641                 cl = lun_new(conf, lun->ctld_name);
 642                 if (cl == NULL) {
 643                         log_warnx("lun_new failed");
 644                         continue;
 645                 }
 646                 lun_set_backend(cl, lun->backend_type);
 647                 lun_set_device_type(cl, lun->device_type);
 648                 lun_set_blocksize(cl, lun->blocksize);
 649                 lun_set_device_id(cl, lun->device_id);
 650                 lun_set_serial(cl, lun->serial_number);
 651                 lun_set_size(cl, lun->size_blocks * cl->l_blocksize);
 652                 lun_set_ctl_lun(cl, lun->lun_id);
 653
 654                 STAILQ_FOREACH(nv, &lun->attr_list, links) {
 655                         if (strcmp(nv->name, "file") == 0 ||
 656                             strcmp(nv->name, "dev") == 0) {
 657                                 lun_set_path(cl, nv->value);
 658                                 continue;
 659                         }
 660                         o = option_new(&cl->l_options, nv->name, nv->value);
 661                         if (o == NULL)
 662                                 log_warnx("unable to add CTL lun option %s "
 663                                     "for CTL lun %ju \"%s\"",
 664                                     nv->name, (uintmax_t) lun->lun_id,
 665                                     cl->l_name);
 666                 }
 667         }
 668
 669         return (conf);
 670 }
 671
 672 int
 673 kernel_lun_add(struct lun *lun)
 674 {
 675         struct option *o;
 676         struct ctl_lun_req req;
 677         int error;
 678
 679         bzero(&req, sizeof(req));
 680
 681         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 682         req.reqtype = CTL_LUNREQ_CREATE;
 683
 684         req.reqdata.create.blocksize_bytes = lun->l_blocksize;
 685
 686         if (lun->l_size != 0)
 687                 req.reqdata.create.lun_size_bytes = lun->l_size;
 688
 689         if (lun->l_ctl_lun >= 0) {
 690                 req.reqdata.create.req_lun_id = lun->l_ctl_lun;
 691                 req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
 692         }
 693
 694         req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
 695         req.reqdata.create.device_type = lun->l_device_type;
 696
 697         if (lun->l_serial != NULL) {
 698                 strncpy(req.reqdata.create.serial_num, lun->l_serial,
 699                         sizeof(req.reqdata.create.serial_num));
 700                 req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
 701         }
 702
 703         if (lun->l_device_id != NULL) {
 704                 strncpy(req.reqdata.create.device_id, lun->l_device_id,
 705                         sizeof(req.reqdata.create.device_id));
 706                 req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
 707         }
 708
 709         if (lun->l_path != NULL) {
 710                 o = option_find(&lun->l_options, "file");
 711                 if (o != NULL) {
 712                         option_set(o, lun->l_path);
 713                 } else {
 714                         o = option_new(&lun->l_options, "file", lun->l_path);
 715                         assert(o != NULL);
 716                 }
 717         }
 718
 719         o = option_find(&lun->l_options, "ctld_name");
 720         if (o != NULL) {
 721                 option_set(o, lun->l_name);
 722         } else {
 723                 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
 724                 assert(o != NULL);
 725         }
 726
 727         o = option_find(&lun->l_options, "scsiname");
 728         if (o == NULL && lun->l_scsiname != NULL) {
 729                 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
 730                 assert(o != NULL);
 731         }
 732
 733         if (!TAILQ_EMPTY(&lun->l_options)) {
 734                 req.args_nvl = nvlist_create(0);
 735                 if (req.args_nvl == NULL) {
 736                         log_warn("error allocating nvlist");
 737                         return (1);
 738                 }
 739
 740                 TAILQ_FOREACH(o, &lun->l_options, o_next)
 741                         nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
 742
 743                 req.args = nvlist_pack(req.args_nvl, &req.args_len);
 744                 if (req.args == NULL) {
 745                         log_warn("error packing nvlist");
 746                         return (1);
 747                 }
 748         }
 749
 750         error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
 751         nvlist_destroy(req.args_nvl);
 752
 753         if (error != 0) {
 754                 log_warn("error issuing CTL_LUN_REQ ioctl");
 755                 return (1);
 756         }
 757
 758         switch (req.status) {
 759         case CTL_LUN_ERROR:
 760                 log_warnx("LUN creation error: %s", req.error_str);
 761                 return (1);
 762         case CTL_LUN_WARNING:
 763                 log_warnx("LUN creation warning: %s", req.error_str);
 764                 break;
 765         case CTL_LUN_OK:
 766                 break;
 767         default:
 768                 log_warnx("unknown LUN creation status: %d",
 769                     req.status);
 770                 return (1);
 771         }
 772
 773         lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id);
 774         return (0);
 775 }
 776
 777 int
 778 kernel_lun_modify(struct lun *lun)
 779 {
 780         struct option *o;
 781         struct ctl_lun_req req;
 782         int error;
 783
 784         bzero(&req, sizeof(req));
 785
 786         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 787         req.reqtype = CTL_LUNREQ_MODIFY;
 788
 789         req.reqdata.modify.lun_id = lun->l_ctl_lun;
 790         req.reqdata.modify.lun_size_bytes = lun->l_size;
 791
 792         if (lun->l_path != NULL) {
 793                 o = option_find(&lun->l_options, "file");
 794                 if (o != NULL) {
 795                         option_set(o, lun->l_path);
 796                 } else {
 797                         o = option_new(&lun->l_options, "file", lun->l_path);
 798                         assert(o != NULL);
 799                 }
 800         }
 801
 802         o = option_find(&lun->l_options, "ctld_name");
 803         if (o != NULL) {
 804                 option_set(o, lun->l_name);
 805         } else {
 806                 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
 807                 assert(o != NULL);
 808         }
 809
 810         o = option_find(&lun->l_options, "scsiname");
 811         if (o == NULL && lun->l_scsiname != NULL) {
 812                 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
 813                 assert(o != NULL);
 814         }
 815
 816         if (!TAILQ_EMPTY(&lun->l_options)) {
 817                 req.args_nvl = nvlist_create(0);
 818                 if (req.args_nvl == NULL) {
 819                         log_warn("error allocating nvlist");
 820                         return (1);
 821                 }
 822
 823                 TAILQ_FOREACH(o, &lun->l_options, o_next)
 824                         nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
 825
 826                 req.args = nvlist_pack(req.args_nvl, &req.args_len);
 827                 if (req.args == NULL) {
 828                         log_warn("error packing nvlist");
 829                         return (1);
 830                 }
 831         }
 832
 833         error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
 834         nvlist_destroy(req.args_nvl);
 835
 836         if (error != 0) {
 837                 log_warn("error issuing CTL_LUN_REQ ioctl");
 838                 return (1);
 839         }
 840
 841         switch (req.status) {
 842         case CTL_LUN_ERROR:
 843                 log_warnx("LUN modification error: %s", req.error_str);
 844                 return (1);
 845         case CTL_LUN_WARNING:
 846                 log_warnx("LUN modification warning: %s", req.error_str);
 847                 break;
 848         case CTL_LUN_OK:
 849                 break;
 850         default:
 851                 log_warnx("unknown LUN modification status: %d",
 852                     req.status);
 853                 return (1);
 854         }
 855
 856         return (0);
 857 }
 858
 859 int
 860 kernel_lun_remove(struct lun *lun)
 861 {
 862         struct ctl_lun_req req;
 863
 864         bzero(&req, sizeof(req));
 865
 866         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 867         req.reqtype = CTL_LUNREQ_RM;
 868
 869         req.reqdata.rm.lun_id = lun->l_ctl_lun;
 870
 871         if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
 872                 log_warn("error issuing CTL_LUN_REQ ioctl");
 873                 return (1);
 874         }
 875
 876         switch (req.status) {
 877         case CTL_LUN_ERROR:
 878                 log_warnx("LUN removal error: %s", req.error_str);
 879                 return (1);
 880         case CTL_LUN_WARNING:
 881                 log_warnx("LUN removal warning: %s", req.error_str);
 882                 break;
 883         case CTL_LUN_OK:
 884                 break;
 885         default:
 886                 log_warnx("unknown LUN removal status: %d", req.status);
 887                 return (1);
 888         }
 889
 890         return (0);
 891 }
 892
 893 void
 894 kernel_handoff(struct ctld_connection *conn)
 895 {
 896         struct ctl_iscsi req;
 897
 898         bzero(&req, sizeof(req));
 899
 900         req.type = CTL_ISCSI_HANDOFF;
 901         strlcpy(req.data.handoff.initiator_name,
 902             conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name));
 903         strlcpy(req.data.handoff.initiator_addr,
 904             conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr));
 905         if (conn->conn_initiator_alias != NULL) {
 906                 strlcpy(req.data.handoff.initiator_alias,
 907                     conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias));
 908         }
 909         memcpy(req.data.handoff.initiator_isid, conn->conn_initiator_isid,
 910             sizeof(req.data.handoff.initiator_isid));
 911         strlcpy(req.data.handoff.target_name,
 912             conn->conn_target->t_name, sizeof(req.data.handoff.target_name));
 913         if (conn->conn_portal->p_portal_group->pg_offload != NULL) {
 914                 strlcpy(req.data.handoff.offload,
 915                     conn->conn_portal->p_portal_group->pg_offload,
 916                     sizeof(req.data.handoff.offload));
 917         }
 918 #ifdef ICL_KERNEL_PROXY
 919         if (proxy_mode)
 920                 req.data.handoff.connection_id = conn->conn.conn_socket;
 921         else
 922                 req.data.handoff.socket = conn->conn.conn_socket;
 923 #else
 924         req.data.handoff.socket = conn->conn.conn_socket;
 925 #endif
 926         req.data.handoff.portal_group_tag =
 927             conn->conn_portal->p_portal_group->pg_tag;
 928         if (conn->conn.conn_header_digest == CONN_DIGEST_CRC32C)
 929                 req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C;
 930         if (conn->conn.conn_data_digest == CONN_DIGEST_CRC32C)
 931                 req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C;
 932         req.data.handoff.cmdsn = conn->conn.conn_cmdsn;
 933         req.data.handoff.statsn = conn->conn.conn_statsn;
 934         req.data.handoff.max_recv_data_segment_length =
 935             conn->conn.conn_max_recv_data_segment_length;
 936         req.data.handoff.max_send_data_segment_length =
 937             conn->conn.conn_max_send_data_segment_length;
 938         req.data.handoff.max_burst_length = conn->conn.conn_max_burst_length;
 939         req.data.handoff.first_burst_length =
 940             conn->conn.conn_first_burst_length;
 941         req.data.handoff.immediate_data = conn->conn.conn_immediate_data;
 942
 943         if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
 944                 log_err(1, "error issuing CTL_ISCSI ioctl; "
 945                     "dropping connection");
 946         }
 947
 948         if (req.status != CTL_ISCSI_OK) {
 949                 log_errx(1, "error returned from CTL iSCSI handoff request: "
 950                     "%s; dropping connection", req.error_str);
 951         }
 952 }
 953
 954 void
 955 kernel_limits(const char *offload, int s, int *max_recv_dsl, int *max_send_dsl,
 956     int *max_burst_length, int *first_burst_length)
 957 {
 958         struct ctl_iscsi req;
 959         struct ctl_iscsi_limits_params *cilp;
 960
 961         bzero(&req, sizeof(req));
 962
 963         req.type = CTL_ISCSI_LIMITS;
 964         cilp = (struct ctl_iscsi_limits_params *)&(req.data.limits);
 965         if (offload != NULL) {
 966                 strlcpy(cilp->offload, offload, sizeof(cilp->offload));
 967         }
 968         cilp->socket = s;
 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
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
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
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
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
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
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
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
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