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