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