usr.sbin/ctld/kernel.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2003, 2004 Silicon Graphics International Corp.
   5  * Copyright (c) 1997-2007 Kenneth D. Merry
   6  * Copyright (c) 2012 The FreeBSD Foundation
   7  * Copyright (c) 2017 Jakub Wojciech Klama <jceel@FreeBSD.org>
   8  * All rights reserved.
   9  *
  10  * Portions of this software were developed by Edward Tomasz Napierala
  11  * under sponsorship from the FreeBSD Foundation.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions, and the following disclaimer,
  18  *    without modification.
  19  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  20  *    substantially similar to the "NO WARRANTY" disclaimer below
  21  *    ("Disclaimer") and any redistribution must be conditioned upon
  22  *    including a substantially similar Disclaimer requirement for further
  23  *    binary redistribution.
  24  *
  25  * NO WARRANTY
  26  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  28  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  29  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  34  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  35  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36  * POSSIBILITY OF SUCH DAMAGES.
  37  *
  38  */
  39
  40 #include <sys/cdefs.h>
  41 __FBSDID("$FreeBSD$");
  42
  43 #include <sys/param.h>
  44 #include <sys/capsicum.h>
  45 #include <sys/callout.h>
  46 #include <sys/ioctl.h>
  47 #include <sys/linker.h>
  48 #include <sys/module.h>
  49 #include <sys/queue.h>
  50 #include <sys/sbuf.h>
  51 #include <sys/nv.h>
  52 #include <sys/stat.h>
  53 #include <assert.h>
  54 #include <bsdxml.h>
  55 #include <capsicum_helpers.h>
  56 #include <ctype.h>
  57 #include <errno.h>
  58 #include <fcntl.h>
  59 #include <stdint.h>
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <strings.h>
  64 #include <cam/scsi/scsi_all.h>
  65 #include <cam/scsi/scsi_message.h>
  66 #include <cam/ctl/ctl.h>
  67 #include <cam/ctl/ctl_io.h>
  68 #include <cam/ctl/ctl_backend.h>
  69 #include <cam/ctl/ctl_ioctl.h>
  70 #include <cam/ctl/ctl_util.h>
  71 #include <cam/ctl/ctl_scsi_all.h>
  72
  73 #include "ctld.h"
  74
  75 #ifdef ICL_KERNEL_PROXY
  76 #include <netdb.h>
  77 #endif
  78
  79 #define NVLIST_BUFSIZE  1024
  80
  81 extern bool proxy_mode;
  82
  83 static int      ctl_fd = 0;
  84
  85 void
  86 kernel_init(void)
  87 {
  88         int retval, saved_errno;
  89
  90         ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
  91         if (ctl_fd < 0 && errno == ENOENT) {
  92                 saved_errno = errno;
  93                 retval = kldload("ctl");
  94                 if (retval != -1)
  95                         ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
  96                 else
  97                         errno = saved_errno;
  98         }
  99         if (ctl_fd < 0)
 100                 log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
 101 #ifdef  WANT_ISCSI
 102         else {
 103                 saved_errno = errno;
 104                 if (modfind("cfiscsi") == -1 && kldload("cfiscsi") == -1)
 105                         log_warn("couldn't load cfiscsi");
 106                 errno = saved_errno;
 107         }
 108 #endif
 109 }
 110
 111 /*
 112  * Name/value pair used for per-LUN attributes.
 113  */
 114 struct cctl_lun_nv {
 115         char *name;
 116         char *value;
 117         STAILQ_ENTRY(cctl_lun_nv) links;
 118 };
 119
 120 /*
 121  * Backend LUN information.
 122  */
 123 struct cctl_lun {
 124         uint64_t lun_id;
 125         char *backend_type;
 126         uint8_t device_type;
 127         uint64_t size_blocks;
 128         uint32_t blocksize;
 129         char *serial_number;
 130         char *device_id;
 131         char *ctld_name;
 132         STAILQ_HEAD(,cctl_lun_nv) attr_list;
 133         STAILQ_ENTRY(cctl_lun) links;
 134 };
 135
 136 struct cctl_port {
 137         uint32_t port_id;
 138         char *port_frontend;
 139         char *port_name;
 140         int pp;
 141         int vp;
 142         int cfiscsi_state;
 143         char *cfiscsi_target;
 144         uint16_t cfiscsi_portal_group_tag;
 145         char *ctld_portal_group_name;
 146         STAILQ_HEAD(,cctl_lun_nv) attr_list;
 147         STAILQ_ENTRY(cctl_port) links;
 148 };
 149
 150 struct cctl_devlist_data {
 151         int num_luns;
 152         STAILQ_HEAD(,cctl_lun) lun_list;
 153         struct cctl_lun *cur_lun;
 154         int num_ports;
 155         STAILQ_HEAD(,cctl_port) port_list;
 156         struct cctl_port *cur_port;
 157         int level;
 158         struct sbuf *cur_sb[32];
 159 };
 160
 161 static void
 162 cctl_start_element(void *user_data, const char *name, const char **attr)
 163 {
 164         int i;
 165         struct cctl_devlist_data *devlist;
 166         struct cctl_lun *cur_lun;
 167
 168         devlist = (struct cctl_devlist_data *)user_data;
 169         cur_lun = devlist->cur_lun;
 170         devlist->level++;
 171         if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
 172             sizeof(devlist->cur_sb[0])))
 173                 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
 174                      sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
 175
 176         devlist->cur_sb[devlist->level] = sbuf_new_auto();
 177         if (devlist->cur_sb[devlist->level] == NULL)
 178                 log_err(1, "%s: unable to allocate sbuf", __func__);
 179
 180         if (strcmp(name, "lun") == 0) {
 181                 if (cur_lun != NULL)
 182                         log_errx(1, "%s: improper lun element nesting",
 183                             __func__);
 184
 185                 cur_lun = calloc(1, sizeof(*cur_lun));
 186                 if (cur_lun == NULL)
 187                         log_err(1, "%s: cannot allocate %zd bytes", __func__,
 188                             sizeof(*cur_lun));
 189
 190                 devlist->num_luns++;
 191                 devlist->cur_lun = cur_lun;
 192
 193                 STAILQ_INIT(&cur_lun->attr_list);
 194                 STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links);
 195
 196                 for (i = 0; attr[i] != NULL; i += 2) {
 197                         if (strcmp(attr[i], "id") == 0) {
 198                                 cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
 199                         } else {
 200                                 log_errx(1, "%s: invalid LUN attribute %s = %s",
 201                                      __func__, attr[i], attr[i+1]);
 202                         }
 203                 }
 204         }
 205 }
 206
 207 static void
 208 cctl_end_element(void *user_data, const char *name)
 209 {
 210         struct cctl_devlist_data *devlist;
 211         struct cctl_lun *cur_lun;
 212         char *str;
 213
 214         devlist = (struct cctl_devlist_data *)user_data;
 215         cur_lun = devlist->cur_lun;
 216
 217         if ((cur_lun == NULL)
 218          && (strcmp(name, "ctllunlist") != 0))
 219                 log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
 220
 221         if (devlist->cur_sb[devlist->level] == NULL)
 222                 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
 223                      devlist->level, name);
 224
 225         sbuf_finish(devlist->cur_sb[devlist->level]);
 226         str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
 227
 228         if (strlen(str) == 0) {
 229                 free(str);
 230                 str = NULL;
 231         }
 232
 233         sbuf_delete(devlist->cur_sb[devlist->level]);
 234         devlist->cur_sb[devlist->level] = NULL;
 235         devlist->level--;
 236
 237         if (strcmp(name, "backend_type") == 0) {
 238                 cur_lun->backend_type = str;
 239                 str = NULL;
 240         } else if (strcmp(name, "lun_type") == 0) {
 241                 if (str == NULL)
 242                         log_errx(1, "%s: %s missing its argument", __func__, name);
 243                 cur_lun->device_type = strtoull(str, NULL, 0);
 244         } else if (strcmp(name, "size") == 0) {
 245                 if (str == NULL)
 246                         log_errx(1, "%s: %s missing its argument", __func__, name);
 247                 cur_lun->size_blocks = strtoull(str, NULL, 0);
 248         } else if (strcmp(name, "blocksize") == 0) {
 249                 if (str == NULL)
 250                         log_errx(1, "%s: %s missing its argument", __func__, name);
 251                 cur_lun->blocksize = strtoul(str, NULL, 0);
 252         } else if (strcmp(name, "serial_number") == 0) {
 253                 cur_lun->serial_number = str;
 254                 str = NULL;
 255         } else if (strcmp(name, "device_id") == 0) {
 256                 cur_lun->device_id = str;
 257                 str = NULL;
 258         } else if (strcmp(name, "ctld_name") == 0) {
 259                 cur_lun->ctld_name = str;
 260                 str = NULL;
 261         } else if (strcmp(name, "lun") == 0) {
 262                 devlist->cur_lun = NULL;
 263         } else if (strcmp(name, "ctllunlist") == 0) {
 264                 /* Nothing. */
 265         } else {
 266                 struct cctl_lun_nv *nv;
 267
 268                 nv = calloc(1, sizeof(*nv));
 269                 if (nv == NULL)
 270                         log_err(1, "%s: can't allocate %zd bytes for nv pair",
 271                             __func__, sizeof(*nv));
 272
 273                 nv->name = checked_strdup(name);
 274
 275                 nv->value = str;
 276                 str = NULL;
 277                 STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links);
 278         }
 279
 280         free(str);
 281 }
 282
 283 static void
 284 cctl_start_pelement(void *user_data, const char *name, const char **attr)
 285 {
 286         int i;
 287         struct cctl_devlist_data *devlist;
 288         struct cctl_port *cur_port;
 289
 290         devlist = (struct cctl_devlist_data *)user_data;
 291         cur_port = devlist->cur_port;
 292         devlist->level++;
 293         if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
 294             sizeof(devlist->cur_sb[0])))
 295                 log_errx(1, "%s: too many nesting levels, %zd max", __func__,
 296                      sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
 297
 298         devlist->cur_sb[devlist->level] = sbuf_new_auto();
 299         if (devlist->cur_sb[devlist->level] == NULL)
 300                 log_err(1, "%s: unable to allocate sbuf", __func__);
 301
 302         if (strcmp(name, "targ_port") == 0) {
 303                 if (cur_port != NULL)
 304                         log_errx(1, "%s: improper port element nesting (%s)",
 305                             __func__, name);
 306
 307                 cur_port = calloc(1, sizeof(*cur_port));
 308                 if (cur_port == NULL)
 309                         log_err(1, "%s: cannot allocate %zd bytes", __func__,
 310                             sizeof(*cur_port));
 311
 312                 devlist->num_ports++;
 313                 devlist->cur_port = cur_port;
 314
 315                 STAILQ_INIT(&cur_port->attr_list);
 316                 STAILQ_INSERT_TAIL(&devlist->port_list, cur_port, links);
 317
 318                 for (i = 0; attr[i] != NULL; i += 2) {
 319                         if (strcmp(attr[i], "id") == 0) {
 320                                 cur_port->port_id = strtoul(attr[i+1], NULL, 0);
 321                         } else {
 322                                 log_errx(1, "%s: invalid LUN attribute %s = %s",
 323                                      __func__, attr[i], attr[i+1]);
 324                         }
 325                 }
 326         }
 327 }
 328
 329 static void
 330 cctl_end_pelement(void *user_data, const char *name)
 331 {
 332         struct cctl_devlist_data *devlist;
 333         struct cctl_port *cur_port;
 334         char *str;
 335
 336         devlist = (struct cctl_devlist_data *)user_data;
 337         cur_port = devlist->cur_port;
 338
 339         if ((cur_port == NULL)
 340          && (strcmp(name, "ctlportlist") != 0))
 341                 log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
 342
 343         if (devlist->cur_sb[devlist->level] == NULL)
 344                 log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
 345                      devlist->level, name);
 346
 347         sbuf_finish(devlist->cur_sb[devlist->level]);
 348         str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
 349
 350         if (strlen(str) == 0) {
 351                 free(str);
 352                 str = NULL;
 353         }
 354
 355         sbuf_delete(devlist->cur_sb[devlist->level]);
 356         devlist->cur_sb[devlist->level] = NULL;
 357         devlist->level--;
 358
 359         if (strcmp(name, "frontend_type") == 0) {
 360                 cur_port->port_frontend = str;
 361                 str = NULL;
 362         } else if (strcmp(name, "port_name") == 0) {
 363                 cur_port->port_name = str;
 364                 str = NULL;
 365         } else if (strcmp(name, "physical_port") == 0) {
 366                 if (str == NULL)
 367                         log_errx(1, "%s: %s missing its argument", __func__, name);
 368                 cur_port->pp = strtoul(str, NULL, 0);
 369         } else if (strcmp(name, "virtual_port") == 0) {
 370                 if (str == NULL)
 371                         log_errx(1, "%s: %s missing its argument", __func__, name);
 372                 cur_port->vp = strtoul(str, NULL, 0);
 373         } else if (strcmp(name, "cfiscsi_target") == 0) {
 374                 cur_port->cfiscsi_target = str;
 375                 str = NULL;
 376         } else if (strcmp(name, "cfiscsi_state") == 0) {
 377                 if (str == NULL)
 378                         log_errx(1, "%s: %s missing its argument", __func__, name);
 379                 cur_port->cfiscsi_state = strtoul(str, NULL, 0);
 380         } else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
 381                 if (str == NULL)
 382                         log_errx(1, "%s: %s missing its argument", __func__, name);
 383                 cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
 384         } else if (strcmp(name, "ctld_portal_group_name") == 0) {
 385                 cur_port->ctld_portal_group_name = str;
 386                 str = NULL;
 387         } else if (strcmp(name, "targ_port") == 0) {
 388                 devlist->cur_port = NULL;
 389         } else if (strcmp(name, "ctlportlist") == 0) {
 390                 /* Nothing. */
 391         } else {
 392                 struct cctl_lun_nv *nv;
 393
 394                 nv = calloc(1, sizeof(*nv));
 395                 if (nv == NULL)
 396                         log_err(1, "%s: can't allocate %zd bytes for nv pair",
 397                             __func__, sizeof(*nv));
 398
 399                 nv->name = checked_strdup(name);
 400
 401                 nv->value = str;
 402                 str = NULL;
 403                 STAILQ_INSERT_TAIL(&cur_port->attr_list, nv, links);
 404         }
 405
 406         free(str);
 407 }
 408
 409 static void
 410 cctl_char_handler(void *user_data, const XML_Char *str, int len)
 411 {
 412         struct cctl_devlist_data *devlist;
 413
 414         devlist = (struct cctl_devlist_data *)user_data;
 415
 416         sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
 417 }
 418
 419 struct conf *
 420 conf_new_from_kernel(void)
 421 {
 422         struct conf *conf = NULL;
 423         struct target *targ;
 424         struct portal_group *pg;
 425         struct pport *pp;
 426         struct port *cp;
 427         struct lun *cl;
 428         struct option *o;
 429         struct ctl_lun_list list;
 430         struct cctl_devlist_data devlist;
 431         struct cctl_lun *lun;
 432         struct cctl_port *port;
 433         XML_Parser parser;
 434         char *str, *name;
 435         int len, retval;
 436
 437         bzero(&devlist, sizeof(devlist));
 438         STAILQ_INIT(&devlist.lun_list);
 439         STAILQ_INIT(&devlist.port_list);
 440
 441         log_debugx("obtaining previously configured CTL luns from the kernel");
 442
 443         str = NULL;
 444         len = 4096;
 445 retry:
 446         str = realloc(str, len);
 447         if (str == NULL)
 448                 log_err(1, "realloc");
 449
 450         bzero(&list, sizeof(list));
 451         list.alloc_len = len;
 452         list.status = CTL_LUN_LIST_NONE;
 453         list.lun_xml = str;
 454
 455         if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
 456                 log_warn("error issuing CTL_LUN_LIST ioctl");
 457                 free(str);
 458                 return (NULL);
 459         }
 460
 461         if (list.status == CTL_LUN_LIST_ERROR) {
 462                 log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
 463                     list.error_str);
 464                 free(str);
 465                 return (NULL);
 466         }
 467
 468         if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
 469                 len = len << 1;
 470                 goto retry;
 471         }
 472
 473         parser = XML_ParserCreate(NULL);
 474         if (parser == NULL) {
 475                 log_warnx("unable to create XML parser");
 476                 free(str);
 477                 return (NULL);
 478         }
 479
 480         XML_SetUserData(parser, &devlist);
 481         XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
 482         XML_SetCharacterDataHandler(parser, cctl_char_handler);
 483
 484         retval = XML_Parse(parser, str, strlen(str), 1);
 485         XML_ParserFree(parser);
 486         free(str);
 487         if (retval != 1) {
 488                 log_warnx("XML_Parse failed");
 489                 return (NULL);
 490         }
 491
 492         str = NULL;
 493         len = 4096;
 494 retry_port:
 495         str = realloc(str, len);
 496         if (str == NULL)
 497                 log_err(1, "realloc");
 498
 499         bzero(&list, sizeof(list));
 500         list.alloc_len = len;
 501         list.status = CTL_LUN_LIST_NONE;
 502         list.lun_xml = str;
 503
 504         if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
 505                 log_warn("error issuing CTL_PORT_LIST ioctl");
 506                 free(str);
 507                 return (NULL);
 508         }
 509
 510         if (list.status == CTL_LUN_LIST_ERROR) {
 511                 log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
 512                     list.error_str);
 513                 free(str);
 514                 return (NULL);
 515         }
 516
 517         if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
 518                 len = len << 1;
 519                 goto retry_port;
 520         }
 521
 522         parser = XML_ParserCreate(NULL);
 523         if (parser == NULL) {
 524                 log_warnx("unable to create XML parser");
 525                 free(str);
 526                 return (NULL);
 527         }
 528
 529         XML_SetUserData(parser, &devlist);
 530         XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
 531         XML_SetCharacterDataHandler(parser, cctl_char_handler);
 532
 533         retval = XML_Parse(parser, str, strlen(str), 1);
 534         XML_ParserFree(parser);
 535         free(str);
 536         if (retval != 1) {
 537                 log_warnx("XML_Parse failed");
 538                 return (NULL);
 539         }
 540
 541         conf = conf_new();
 542
 543         name = NULL;
 544         STAILQ_FOREACH(port, &devlist.port_list, links) {
 545                 if (strcmp(port->port_frontend, "ha") == 0)
 546                         continue;
 547                 free(name);
 548                 if (port->pp == 0 && port->vp == 0) {
 549                         name = checked_strdup(port->port_name);
 550                 } else if (port->vp == 0) {
 551                         retval = asprintf(&name, "%s/%d",
 552                             port->port_name, port->pp);
 553                         if (retval <= 0)
 554                                 log_err(1, "asprintf");
 555                 } else {
 556                         retval = asprintf(&name, "%s/%d/%d",
 557                             port->port_name, port->pp, port->vp);
 558                         if (retval <= 0)
 559                                 log_err(1, "asprintf");
 560                 }
 561
 562                 if (port->cfiscsi_target == NULL) {
 563                         log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
 564                             port->port_id, name);
 565                         pp = pport_find(conf, name);
 566                         if (pp == NULL) {
 567 #if 0
 568                                 log_debugx("found new kernel port %u \"%s\"",
 569                                     port->port_id, name);
 570 #endif
 571                                 pp = pport_new(conf, name, port->port_id);
 572                                 if (pp == NULL) {
 573                                         log_warnx("pport_new failed");
 574                                         continue;
 575                                 }
 576                         }
 577                         continue;
 578                 }
 579                 if (port->cfiscsi_state != 1) {
 580                         log_debugx("CTL port %ju is not active (%d); ignoring",
 581                             (uintmax_t)port->port_id, port->cfiscsi_state);
 582                         continue;
 583                 }
 584
 585                 targ = target_find(conf, port->cfiscsi_target);
 586                 if (targ == NULL) {
 587 #if 0
 588                         log_debugx("found new kernel target %s for CTL port %ld",
 589                             port->cfiscsi_target, port->port_id);
 590 #endif
 591                         targ = target_new(conf, port->cfiscsi_target);
 592                         if (targ == NULL) {
 593                                 log_warnx("target_new failed");
 594                                 continue;
 595                         }
 596                 }
 597
 598                 if (port->ctld_portal_group_name == NULL)
 599                         continue;
 600                 pg = portal_group_find(conf, port->ctld_portal_group_name);
 601                 if (pg == NULL) {
 602 #if 0
 603                         log_debugx("found new kernel portal group %s for CTL port %ld",
 604                             port->ctld_portal_group_name, port->port_id);
 605 #endif
 606                         pg = portal_group_new(conf, port->ctld_portal_group_name);
 607                         if (pg == NULL) {
 608                                 log_warnx("portal_group_new failed");
 609                                 continue;
 610                         }
 611                 }
 612                 pg->pg_tag = port->cfiscsi_portal_group_tag;
 613                 cp = port_new(conf, targ, pg);
 614                 if (cp == NULL) {
 615                         log_warnx("port_new failed");
 616                         continue;
 617                 }
 618                 cp->p_ctl_port = port->port_id;
 619         }
 620         free(name);
 621
 622         STAILQ_FOREACH(lun, &devlist.lun_list, links) {
 623                 struct cctl_lun_nv *nv;
 624
 625                 if (lun->ctld_name == NULL) {
 626                         log_debugx("CTL lun %ju wasn't managed by ctld; "
 627                             "ignoring", (uintmax_t)lun->lun_id);
 628                         continue;
 629                 }
 630
 631                 cl = lun_find(conf, lun->ctld_name);
 632                 if (cl != NULL) {
 633                         log_warnx("found CTL lun %ju \"%s\", "
 634                             "also backed by CTL lun %d; ignoring",
 635                             (uintmax_t)lun->lun_id, lun->ctld_name,
 636                             cl->l_ctl_lun);
 637                         continue;
 638                 }
 639
 640                 log_debugx("found CTL lun %ju \"%s\"",
 641                     (uintmax_t)lun->lun_id, lun->ctld_name);
 642
 643                 cl = lun_new(conf, lun->ctld_name);
 644                 if (cl == NULL) {
 645                         log_warnx("lun_new failed");
 646                         continue;
 647                 }
 648                 lun_set_backend(cl, lun->backend_type);
 649                 lun_set_device_type(cl, lun->device_type);
 650                 lun_set_blocksize(cl, lun->blocksize);
 651                 lun_set_device_id(cl, lun->device_id);
 652                 lun_set_serial(cl, lun->serial_number);
 653                 lun_set_size(cl, lun->size_blocks * cl->l_blocksize);
 654                 lun_set_ctl_lun(cl, lun->lun_id);
 655
 656                 STAILQ_FOREACH(nv, &lun->attr_list, links) {
 657                         if (strcmp(nv->name, "file") == 0 ||
 658                             strcmp(nv->name, "dev") == 0) {
 659                                 lun_set_path(cl, nv->value);
 660                                 continue;
 661                         }
 662                         o = option_new(&cl->l_options, nv->name, nv->value);
 663                         if (o == NULL)
 664                                 log_warnx("unable to add CTL lun option %s "
 665                                     "for CTL lun %ju \"%s\"",
 666                                     nv->name, (uintmax_t) lun->lun_id,
 667                                     cl->l_name);
 668                 }
 669         }
 670
 671         return (conf);
 672 }
 673
 674 int
 675 kernel_lun_add(struct lun *lun)
 676 {
 677         struct option *o;
 678         struct ctl_lun_req req;
 679         int error;
 680
 681         bzero(&req, sizeof(req));
 682
 683         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 684         req.reqtype = CTL_LUNREQ_CREATE;
 685
 686         req.reqdata.create.blocksize_bytes = lun->l_blocksize;
 687
 688         if (lun->l_size != 0)
 689                 req.reqdata.create.lun_size_bytes = lun->l_size;
 690
 691         if (lun->l_ctl_lun >= 0) {
 692                 req.reqdata.create.req_lun_id = lun->l_ctl_lun;
 693                 req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
 694         }
 695
 696         req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
 697         req.reqdata.create.device_type = lun->l_device_type;
 698
 699         if (lun->l_serial != NULL) {
 700                 strncpy(req.reqdata.create.serial_num, lun->l_serial,
 701                         sizeof(req.reqdata.create.serial_num));
 702                 req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
 703         }
 704
 705         if (lun->l_device_id != NULL) {
 706                 strncpy(req.reqdata.create.device_id, lun->l_device_id,
 707                         sizeof(req.reqdata.create.device_id));
 708                 req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
 709         }
 710
 711         if (lun->l_path != NULL) {
 712                 o = option_find(&lun->l_options, "file");
 713                 if (o != NULL) {
 714                         option_set(o, lun->l_path);
 715                 } else {
 716                         o = option_new(&lun->l_options, "file", lun->l_path);
 717                         assert(o != NULL);
 718                 }
 719         }
 720
 721         o = option_find(&lun->l_options, "ctld_name");
 722         if (o != NULL) {
 723                 option_set(o, lun->l_name);
 724         } else {
 725                 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
 726                 assert(o != NULL);
 727         }
 728
 729         o = option_find(&lun->l_options, "scsiname");
 730         if (o == NULL && lun->l_scsiname != NULL) {
 731                 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
 732                 assert(o != NULL);
 733         }
 734
 735         if (!TAILQ_EMPTY(&lun->l_options)) {
 736                 req.args_nvl = nvlist_create(0);
 737                 if (req.args_nvl == NULL) {
 738                         log_warn("error allocating nvlist");
 739                         return (1);
 740                 }
 741
 742                 TAILQ_FOREACH(o, &lun->l_options, o_next)
 743                         nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
 744
 745                 req.args = nvlist_pack(req.args_nvl, &req.args_len);
 746                 if (req.args == NULL) {
 747                         log_warn("error packing nvlist");
 748                         return (1);
 749                 }
 750         }
 751
 752         error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
 753         nvlist_destroy(req.args_nvl);
 754
 755         if (error != 0) {
 756                 log_warn("error issuing CTL_LUN_REQ ioctl");
 757                 return (1);
 758         }
 759
 760         switch (req.status) {
 761         case CTL_LUN_ERROR:
 762                 log_warnx("LUN creation error: %s", req.error_str);
 763                 return (1);
 764         case CTL_LUN_WARNING:
 765                 log_warnx("LUN creation warning: %s", req.error_str);
 766                 break;
 767         case CTL_LUN_OK:
 768                 break;
 769         default:
 770                 log_warnx("unknown LUN creation status: %d",
 771                     req.status);
 772                 return (1);
 773         }
 774
 775         lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id);
 776         return (0);
 777 }
 778
 779 int
 780 kernel_lun_modify(struct lun *lun)
 781 {
 782         struct option *o;
 783         struct ctl_lun_req req;
 784         int error;
 785
 786         bzero(&req, sizeof(req));
 787
 788         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 789         req.reqtype = CTL_LUNREQ_MODIFY;
 790
 791         req.reqdata.modify.lun_id = lun->l_ctl_lun;
 792         req.reqdata.modify.lun_size_bytes = lun->l_size;
 793
 794         if (lun->l_path != NULL) {
 795                 o = option_find(&lun->l_options, "file");
 796                 if (o != NULL) {
 797                         option_set(o, lun->l_path);
 798                 } else {
 799                         o = option_new(&lun->l_options, "file", lun->l_path);
 800                         assert(o != NULL);
 801                 }
 802         }
 803
 804         o = option_find(&lun->l_options, "ctld_name");
 805         if (o != NULL) {
 806                 option_set(o, lun->l_name);
 807         } else {
 808                 o = option_new(&lun->l_options, "ctld_name", lun->l_name);
 809                 assert(o != NULL);
 810         }
 811
 812         o = option_find(&lun->l_options, "scsiname");
 813         if (o == NULL && lun->l_scsiname != NULL) {
 814                 o = option_new(&lun->l_options, "scsiname", lun->l_scsiname);
 815                 assert(o != NULL);
 816         }
 817
 818         if (!TAILQ_EMPTY(&lun->l_options)) {
 819                 req.args_nvl = nvlist_create(0);
 820                 if (req.args_nvl == NULL) {
 821                         log_warn("error allocating nvlist");
 822                         return (1);
 823                 }
 824
 825                 TAILQ_FOREACH(o, &lun->l_options, o_next)
 826                         nvlist_add_string(req.args_nvl, o->o_name, o->o_value);
 827
 828                 req.args = nvlist_pack(req.args_nvl, &req.args_len);
 829                 if (req.args == NULL) {
 830                         log_warn("error packing nvlist");
 831                         return (1);
 832                 }
 833         }
 834
 835         error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
 836         nvlist_destroy(req.args_nvl);
 837
 838         if (error != 0) {
 839                 log_warn("error issuing CTL_LUN_REQ ioctl");
 840                 return (1);
 841         }
 842
 843         switch (req.status) {
 844         case CTL_LUN_ERROR:
 845                 log_warnx("LUN modification error: %s", req.error_str);
 846                 return (1);
 847         case CTL_LUN_WARNING:
 848                 log_warnx("LUN modification warning: %s", req.error_str);
 849                 break;
 850         case CTL_LUN_OK:
 851                 break;
 852         default:
 853                 log_warnx("unknown LUN modification status: %d",
 854                     req.status);
 855                 return (1);
 856         }
 857
 858         return (0);
 859 }
 860
 861 int
 862 kernel_lun_remove(struct lun *lun)
 863 {
 864         struct ctl_lun_req req;
 865
 866         bzero(&req, sizeof(req));
 867
 868         strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
 869         req.reqtype = CTL_LUNREQ_RM;
 870
 871         req.reqdata.rm.lun_id = lun->l_ctl_lun;
 872
 873         if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
 874                 log_warn("error issuing CTL_LUN_REQ ioctl");
 875                 return (1);
 876         }
 877
 878         switch (req.status) {
 879         case CTL_LUN_ERROR:
 880                 log_warnx("LUN removal error: %s", req.error_str);
 881                 return (1);
 882         case CTL_LUN_WARNING:
 883                 log_warnx("LUN removal warning: %s", req.error_str);
 884                 break;
 885         case CTL_LUN_OK:
 886                 break;
 887         default:
 888                 log_warnx("unknown LUN removal status: %d", req.status);
 889                 return (1);
 890         }
 891
 892         return (0);
 893 }
 894
 895 void
 896 kernel_handoff(struct connection *conn)
 897 {
 898         struct ctl_iscsi req;
 899
 900         bzero(&req, sizeof(req));
 901
 902         req.type = CTL_ISCSI_HANDOFF;
 903         strlcpy(req.data.handoff.initiator_name,
 904             conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name));
 905         strlcpy(req.data.handoff.initiator_addr,
 906             conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr));
 907         if (conn->conn_initiator_alias != NULL) {
 908                 strlcpy(req.data.handoff.initiator_alias,
 909                     conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias));
 910         }
 911         memcpy(req.data.handoff.initiator_isid, conn->conn_initiator_isid,
 912             sizeof(req.data.handoff.initiator_isid));
 913         strlcpy(req.data.handoff.target_name,
 914             conn->conn_target->t_name, sizeof(req.data.handoff.target_name));
 915         if (conn->conn_portal->p_portal_group->pg_offload != NULL) {
 916                 strlcpy(req.data.handoff.offload,
 917                     conn->conn_portal->p_portal_group->pg_offload,
 918                     sizeof(req.data.handoff.offload));
 919         }
 920 #ifdef ICL_KERNEL_PROXY
 921         if (proxy_mode)
 922                 req.data.handoff.connection_id = conn->conn_socket;
 923         else
 924                 req.data.handoff.socket = conn->conn_socket;
 925 #else
 926         req.data.handoff.socket = conn->conn_socket;
 927 #endif
 928         req.data.handoff.portal_group_tag =
 929             conn->conn_portal->p_portal_group->pg_tag;
 930         if (conn->conn_header_digest == CONN_DIGEST_CRC32C)
 931                 req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C;
 932         if (conn->conn_data_digest == CONN_DIGEST_CRC32C)
 933                 req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C;
 934         req.data.handoff.cmdsn = conn->conn_cmdsn;
 935         req.data.handoff.statsn = conn->conn_statsn;
 936         req.data.handoff.max_recv_data_segment_length =
 937             conn->conn_max_recv_data_segment_length;
 938         req.data.handoff.max_send_data_segment_length =
 939             conn->conn_max_send_data_segment_length;
 940         req.data.handoff.max_burst_length = conn->conn_max_burst_length;
 941         req.data.handoff.first_burst_length = conn->conn_first_burst_length;
 942         req.data.handoff.immediate_data = conn->conn_immediate_data;
 943
 944         if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
 945                 log_err(1, "error issuing CTL_ISCSI ioctl; "
 946                     "dropping connection");
 947         }
 948
 949         if (req.status != CTL_ISCSI_OK) {
 950                 log_errx(1, "error returned from CTL iSCSI handoff request: "
 951                     "%s; dropping connection", req.error_str);
 952         }
 953 }
 954
 955 void
 956 kernel_limits(const char *offload, int *max_recv_dsl, int *max_send_dsl,
 957     int *max_burst_length, int *first_burst_length)
 958 {
 959         struct ctl_iscsi req;
 960         struct ctl_iscsi_limits_params *cilp;
 961
 962         bzero(&req, sizeof(req));
 963
 964         req.type = CTL_ISCSI_LIMITS;
 965         cilp = (struct ctl_iscsi_limits_params *)&(req.data.limits);
 966         if (offload != NULL) {
 967                 strlcpy(cilp->offload, offload, sizeof(cilp->offload));
 968         }
 969
 970         if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
 971                 log_err(1, "error issuing CTL_ISCSI ioctl; "
 972                     "dropping connection");
 973         }
 974
 975         if (req.status != CTL_ISCSI_OK) {
 976                 log_errx(1, "error returned from CTL iSCSI limits request: "
 977                     "%s; dropping connection", req.error_str);
 978         }
 979
 980         if (cilp->max_recv_data_segment_length != 0) {
 981                 *max_recv_dsl = cilp->max_recv_data_segment_length;
 982                 *max_send_dsl = cilp->max_recv_data_segment_length;
 983         }
 984         if (cilp->max_send_data_segment_length != 0)
 985                 *max_send_dsl = cilp->max_send_data_segment_length;
 986         if (cilp->max_burst_length != 0)
 987                 *max_burst_length = cilp->max_burst_length;
 988         if (cilp->first_burst_length != 0)
 989                 *first_burst_length = cilp->first_burst_length;
 990         if (*max_burst_length < *first_burst_length)
 991                 *first_burst_length = *max_burst_length;
 992
 993         if (offload != NULL) {
 994                 log_debugx("Kernel limits for offload \"%s\" are "
 995                     "MaxRecvDataSegment=%d, max_send_dsl=%d, "
 996                     "MaxBurstLength=%d, FirstBurstLength=%d",
 997                     offload, *max_recv_dsl, *max_send_dsl, *max_burst_length,
 998                     *first_burst_length);
 999         } else {
1000                 log_debugx("Kernel limits are "
1001                     "MaxRecvDataSegment=%d, max_send_dsl=%d, "
1002                     "MaxBurstLength=%d, FirstBurstLength=%d",
1003                     *max_recv_dsl, *max_send_dsl, *max_burst_length,
1004                     *first_burst_length);
1005         }
1006 }
1007
1008 int
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