kernel.c revision 264526
1255570Strasz/*- 2255570Strasz * Copyright (c) 2003, 2004 Silicon Graphics International Corp. 3255570Strasz * Copyright (c) 1997-2007 Kenneth D. Merry 4255570Strasz * Copyright (c) 2012 The FreeBSD Foundation 5255570Strasz * All rights reserved. 6255570Strasz * 7255570Strasz * Portions of this software were developed by Edward Tomasz Napierala 8255570Strasz * under sponsorship from the FreeBSD Foundation. 9255570Strasz * 10255570Strasz * Redistribution and use in source and binary forms, with or without 11255570Strasz * modification, are permitted provided that the following conditions 12255570Strasz * are met: 13255570Strasz * 1. Redistributions of source code must retain the above copyright 14255570Strasz * notice, this list of conditions, and the following disclaimer, 15255570Strasz * without modification. 16255570Strasz * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17255570Strasz * substantially similar to the "NO WARRANTY" disclaimer below 18255570Strasz * ("Disclaimer") and any redistribution must be conditioned upon 19255570Strasz * including a substantially similar Disclaimer requirement for further 20255570Strasz * binary redistribution. 21255570Strasz * 22255570Strasz * NO WARRANTY 23255570Strasz * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24255570Strasz * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25255570Strasz * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26255570Strasz * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27255570Strasz * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28255570Strasz * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29255570Strasz * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30255570Strasz * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31255570Strasz * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32255570Strasz * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33255570Strasz * POSSIBILITY OF SUCH DAMAGES. 34255570Strasz * 35255570Strasz * $FreeBSD: head/usr.sbin/ctld/kernel.c 264526 2014-04-16 10:29:34Z trasz $ 36255570Strasz */ 37255570Strasz 38255570Strasz#include <sys/ioctl.h> 39255570Strasz#include <sys/types.h> 40255570Strasz#include <sys/stat.h> 41255570Strasz#include <sys/param.h> 42255570Strasz#include <sys/linker.h> 43255570Strasz#include <sys/queue.h> 44255570Strasz#include <sys/callout.h> 45255570Strasz#include <sys/sbuf.h> 46263234Srwatson#include <sys/capsicum.h> 47255570Strasz#include <assert.h> 48255570Strasz#include <bsdxml.h> 49255570Strasz#include <ctype.h> 50255570Strasz#include <errno.h> 51255570Strasz#include <fcntl.h> 52255570Strasz#include <stdint.h> 53255570Strasz#include <stdio.h> 54255570Strasz#include <stdlib.h> 55255570Strasz#include <string.h> 56255570Strasz#include <strings.h> 57255570Strasz#include <cam/scsi/scsi_all.h> 58255570Strasz#include <cam/scsi/scsi_message.h> 59255570Strasz#include <cam/ctl/ctl.h> 60255570Strasz#include <cam/ctl/ctl_io.h> 61255570Strasz#include <cam/ctl/ctl_frontend_internal.h> 62255570Strasz#include <cam/ctl/ctl_backend.h> 63255570Strasz#include <cam/ctl/ctl_ioctl.h> 64255570Strasz#include <cam/ctl/ctl_backend_block.h> 65255570Strasz#include <cam/ctl/ctl_util.h> 66255570Strasz#include <cam/ctl/ctl_scsi_all.h> 67255570Strasz 68264524Strasz#include "ctld.h" 69264524Strasz 70255570Strasz#ifdef ICL_KERNEL_PROXY 71255570Strasz#include <netdb.h> 72255570Strasz#endif 73255570Strasz 74264524Straszextern bool proxy_mode; 75255570Strasz 76255570Straszstatic int ctl_fd = 0; 77255570Strasz 78255570Straszvoid 79255570Straszkernel_init(void) 80255570Strasz{ 81255570Strasz int retval, saved_errno; 82255570Strasz 83255570Strasz ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR); 84255665Strasz if (ctl_fd < 0 && errno == ENOENT) { 85255570Strasz saved_errno = errno; 86255570Strasz retval = kldload("ctl"); 87255570Strasz if (retval != -1) 88255570Strasz ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR); 89255570Strasz else 90255570Strasz errno = saved_errno; 91255570Strasz } 92255570Strasz if (ctl_fd < 0) 93255570Strasz log_err(1, "failed to open %s", CTL_DEFAULT_DEV); 94255570Strasz} 95255570Strasz 96255570Strasz/* 97255570Strasz * Name/value pair used for per-LUN attributes. 98255570Strasz */ 99255570Straszstruct cctl_lun_nv { 100255570Strasz char *name; 101255570Strasz char *value; 102255570Strasz STAILQ_ENTRY(cctl_lun_nv) links; 103255570Strasz}; 104255570Strasz 105255570Strasz/* 106255570Strasz * Backend LUN information. 107255570Strasz */ 108255570Straszstruct cctl_lun { 109255570Strasz uint64_t lun_id; 110255570Strasz char *backend_type; 111255570Strasz uint64_t size_blocks; 112255570Strasz uint32_t blocksize; 113255570Strasz char *serial_number; 114255570Strasz char *device_id; 115255570Strasz char *cfiscsi_target; 116255570Strasz char *cfiscsi_target_alias; 117255570Strasz int cfiscsi_lun; 118255570Strasz STAILQ_HEAD(,cctl_lun_nv) attr_list; 119255570Strasz STAILQ_ENTRY(cctl_lun) links; 120255570Strasz}; 121255570Strasz 122255570Straszstruct cctl_devlist_data { 123255570Strasz int num_luns; 124255570Strasz STAILQ_HEAD(,cctl_lun) lun_list; 125255570Strasz struct cctl_lun *cur_lun; 126255570Strasz int level; 127255570Strasz struct sbuf *cur_sb[32]; 128255570Strasz}; 129255570Strasz 130255570Straszstatic void 131255570Straszcctl_start_element(void *user_data, const char *name, const char **attr) 132255570Strasz{ 133255570Strasz int i; 134255570Strasz struct cctl_devlist_data *devlist; 135255570Strasz struct cctl_lun *cur_lun; 136255570Strasz 137255570Strasz devlist = (struct cctl_devlist_data *)user_data; 138255570Strasz cur_lun = devlist->cur_lun; 139255570Strasz devlist->level++; 140256189Strasz if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) / 141255570Strasz sizeof(devlist->cur_sb[0]))) 142255570Strasz log_errx(1, "%s: too many nesting levels, %zd max", __func__, 143255570Strasz sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0])); 144255570Strasz 145255570Strasz devlist->cur_sb[devlist->level] = sbuf_new_auto(); 146255570Strasz if (devlist->cur_sb[devlist->level] == NULL) 147255570Strasz log_err(1, "%s: unable to allocate sbuf", __func__); 148255570Strasz 149255570Strasz if (strcmp(name, "lun") == 0) { 150255570Strasz if (cur_lun != NULL) 151255570Strasz log_errx(1, "%s: improper lun element nesting", 152255570Strasz __func__); 153255570Strasz 154255570Strasz cur_lun = calloc(1, sizeof(*cur_lun)); 155255570Strasz if (cur_lun == NULL) 156255570Strasz log_err(1, "%s: cannot allocate %zd bytes", __func__, 157255570Strasz sizeof(*cur_lun)); 158255570Strasz 159255570Strasz devlist->num_luns++; 160255570Strasz devlist->cur_lun = cur_lun; 161255570Strasz 162255570Strasz STAILQ_INIT(&cur_lun->attr_list); 163255570Strasz STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links); 164255570Strasz 165255570Strasz for (i = 0; attr[i] != NULL; i += 2) { 166255570Strasz if (strcmp(attr[i], "id") == 0) { 167255570Strasz cur_lun->lun_id = strtoull(attr[i+1], NULL, 0); 168255570Strasz } else { 169255570Strasz log_errx(1, "%s: invalid LUN attribute %s = %s", 170255570Strasz __func__, attr[i], attr[i+1]); 171255570Strasz } 172255570Strasz } 173255570Strasz } 174255570Strasz} 175255570Strasz 176255570Straszstatic void 177255570Straszcctl_end_element(void *user_data, const char *name) 178255570Strasz{ 179255570Strasz struct cctl_devlist_data *devlist; 180255570Strasz struct cctl_lun *cur_lun; 181255570Strasz char *str; 182255570Strasz 183255570Strasz devlist = (struct cctl_devlist_data *)user_data; 184255570Strasz cur_lun = devlist->cur_lun; 185255570Strasz 186255570Strasz if ((cur_lun == NULL) 187255570Strasz && (strcmp(name, "ctllunlist") != 0)) 188255570Strasz log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name); 189255570Strasz 190255570Strasz if (devlist->cur_sb[devlist->level] == NULL) 191255570Strasz log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__, 192255570Strasz devlist->level, name); 193255570Strasz 194255570Strasz sbuf_finish(devlist->cur_sb[devlist->level]); 195255570Strasz str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level])); 196255570Strasz 197255570Strasz if (strlen(str) == 0) { 198255570Strasz free(str); 199255570Strasz str = NULL; 200255570Strasz } 201255570Strasz 202255570Strasz sbuf_delete(devlist->cur_sb[devlist->level]); 203255570Strasz devlist->cur_sb[devlist->level] = NULL; 204255570Strasz devlist->level--; 205255570Strasz 206255570Strasz if (strcmp(name, "backend_type") == 0) { 207255570Strasz cur_lun->backend_type = str; 208255570Strasz str = NULL; 209255570Strasz } else if (strcmp(name, "size") == 0) { 210255570Strasz cur_lun->size_blocks = strtoull(str, NULL, 0); 211255570Strasz } else if (strcmp(name, "blocksize") == 0) { 212255570Strasz cur_lun->blocksize = strtoul(str, NULL, 0); 213255570Strasz } else if (strcmp(name, "serial_number") == 0) { 214255570Strasz cur_lun->serial_number = str; 215255570Strasz str = NULL; 216255570Strasz } else if (strcmp(name, "device_id") == 0) { 217255570Strasz cur_lun->device_id = str; 218255570Strasz str = NULL; 219255570Strasz } else if (strcmp(name, "cfiscsi_target") == 0) { 220255570Strasz cur_lun->cfiscsi_target = str; 221255570Strasz str = NULL; 222255570Strasz } else if (strcmp(name, "cfiscsi_target_alias") == 0) { 223255570Strasz cur_lun->cfiscsi_target_alias = str; 224255570Strasz str = NULL; 225255570Strasz } else if (strcmp(name, "cfiscsi_lun") == 0) { 226255570Strasz cur_lun->cfiscsi_lun = strtoul(str, NULL, 0); 227255570Strasz } else if (strcmp(name, "lun") == 0) { 228255570Strasz devlist->cur_lun = NULL; 229255570Strasz } else if (strcmp(name, "ctllunlist") == 0) { 230255570Strasz 231255570Strasz } else { 232255570Strasz struct cctl_lun_nv *nv; 233255570Strasz 234255570Strasz nv = calloc(1, sizeof(*nv)); 235255570Strasz if (nv == NULL) 236255570Strasz log_err(1, "%s: can't allocate %zd bytes for nv pair", 237255570Strasz __func__, sizeof(*nv)); 238255570Strasz 239255570Strasz nv->name = checked_strdup(name); 240255570Strasz 241255570Strasz nv->value = str; 242255570Strasz str = NULL; 243255570Strasz STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links); 244255570Strasz } 245255570Strasz 246255570Strasz free(str); 247255570Strasz} 248255570Strasz 249255570Straszstatic void 250255570Straszcctl_char_handler(void *user_data, const XML_Char *str, int len) 251255570Strasz{ 252255570Strasz struct cctl_devlist_data *devlist; 253255570Strasz 254255570Strasz devlist = (struct cctl_devlist_data *)user_data; 255255570Strasz 256255570Strasz sbuf_bcat(devlist->cur_sb[devlist->level], str, len); 257255570Strasz} 258255570Strasz 259255570Straszstruct conf * 260255570Straszconf_new_from_kernel(void) 261255570Strasz{ 262255570Strasz struct conf *conf = NULL; 263255570Strasz struct target *targ; 264255570Strasz struct lun *cl; 265255570Strasz struct lun_option *lo; 266255570Strasz struct ctl_lun_list list; 267255570Strasz struct cctl_devlist_data devlist; 268255570Strasz struct cctl_lun *lun; 269255570Strasz XML_Parser parser; 270255570Strasz char *lun_str = NULL; 271255570Strasz int lun_len; 272255570Strasz int retval; 273255570Strasz 274255570Strasz lun_len = 4096; 275255570Strasz 276255570Strasz bzero(&devlist, sizeof(devlist)); 277255570Strasz STAILQ_INIT(&devlist.lun_list); 278255570Strasz 279255570Strasz log_debugx("obtaining previously configured CTL luns from the kernel"); 280255570Strasz 281255570Straszretry: 282255570Strasz lun_str = realloc(lun_str, lun_len); 283255570Strasz if (lun_str == NULL) 284255570Strasz log_err(1, "realloc"); 285255570Strasz 286255570Strasz bzero(&list, sizeof(list)); 287255570Strasz list.alloc_len = lun_len; 288255570Strasz list.status = CTL_LUN_LIST_NONE; 289255570Strasz list.lun_xml = lun_str; 290255570Strasz 291255570Strasz if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) { 292255570Strasz log_warn("error issuing CTL_LUN_LIST ioctl"); 293255570Strasz free(lun_str); 294255570Strasz return (NULL); 295255570Strasz } 296255570Strasz 297255570Strasz if (list.status == CTL_LUN_LIST_ERROR) { 298255570Strasz log_warnx("error returned from CTL_LUN_LIST ioctl: %s", 299255570Strasz list.error_str); 300255570Strasz free(lun_str); 301255570Strasz return (NULL); 302255570Strasz } 303255570Strasz 304255570Strasz if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) { 305255570Strasz lun_len = lun_len << 1; 306255570Strasz goto retry; 307255570Strasz } 308255570Strasz 309255570Strasz parser = XML_ParserCreate(NULL); 310255570Strasz if (parser == NULL) { 311255570Strasz log_warnx("unable to create XML parser"); 312255570Strasz free(lun_str); 313255570Strasz return (NULL); 314255570Strasz } 315255570Strasz 316255570Strasz XML_SetUserData(parser, &devlist); 317255570Strasz XML_SetElementHandler(parser, cctl_start_element, cctl_end_element); 318255570Strasz XML_SetCharacterDataHandler(parser, cctl_char_handler); 319255570Strasz 320255570Strasz retval = XML_Parse(parser, lun_str, strlen(lun_str), 1); 321255570Strasz XML_ParserFree(parser); 322255570Strasz free(lun_str); 323255570Strasz if (retval != 1) { 324255570Strasz log_warnx("XML_Parse failed"); 325255570Strasz return (NULL); 326255570Strasz } 327255570Strasz 328255570Strasz conf = conf_new(); 329255570Strasz 330255570Strasz STAILQ_FOREACH(lun, &devlist.lun_list, links) { 331255570Strasz struct cctl_lun_nv *nv; 332255570Strasz 333255570Strasz if (lun->cfiscsi_target == NULL) { 334255570Strasz log_debugx("CTL lun %ju wasn't managed by ctld; " 335255570Strasz "ignoring", (uintmax_t)lun->lun_id); 336255570Strasz continue; 337255570Strasz } 338255570Strasz 339255570Strasz targ = target_find(conf, lun->cfiscsi_target); 340255570Strasz if (targ == NULL) { 341255570Strasz#if 0 342255570Strasz log_debugx("found new kernel target %s for CTL lun %ld", 343255570Strasz lun->cfiscsi_target, lun->lun_id); 344255570Strasz#endif 345255570Strasz targ = target_new(conf, lun->cfiscsi_target); 346255570Strasz if (targ == NULL) { 347255570Strasz log_warnx("target_new failed"); 348255570Strasz continue; 349255570Strasz } 350255570Strasz } 351255570Strasz 352255570Strasz cl = lun_find(targ, lun->cfiscsi_lun); 353255570Strasz if (cl != NULL) { 354255570Strasz log_warnx("found CTL lun %ju, backing lun %d, target " 355255570Strasz "%s, also backed by CTL lun %d; ignoring", 356255570Strasz (uintmax_t) lun->lun_id, cl->l_lun, 357261757Strasz cl->l_target->t_name, cl->l_ctl_lun); 358255570Strasz continue; 359255570Strasz } 360255570Strasz 361255570Strasz log_debugx("found CTL lun %ju, backing lun %d, target %s", 362255570Strasz (uintmax_t)lun->lun_id, lun->cfiscsi_lun, lun->cfiscsi_target); 363255570Strasz 364255570Strasz cl = lun_new(targ, lun->cfiscsi_lun); 365255570Strasz if (cl == NULL) { 366255570Strasz log_warnx("lun_new failed"); 367255570Strasz continue; 368255570Strasz } 369255570Strasz lun_set_backend(cl, lun->backend_type); 370255570Strasz lun_set_blocksize(cl, lun->blocksize); 371255570Strasz lun_set_device_id(cl, lun->device_id); 372255570Strasz lun_set_serial(cl, lun->serial_number); 373255570Strasz lun_set_size(cl, lun->size_blocks * cl->l_blocksize); 374255570Strasz lun_set_ctl_lun(cl, lun->lun_id); 375255570Strasz 376255570Strasz STAILQ_FOREACH(nv, &lun->attr_list, links) { 377255570Strasz if (strcmp(nv->name, "file") == 0 || 378255570Strasz strcmp(nv->name, "dev") == 0) { 379255570Strasz lun_set_path(cl, nv->value); 380255570Strasz continue; 381255570Strasz } 382255570Strasz lo = lun_option_new(cl, nv->name, nv->value); 383255570Strasz if (lo == NULL) 384255570Strasz log_warnx("unable to add CTL lun option %s " 385255570Strasz "for CTL lun %ju for lun %d, target %s", 386255570Strasz nv->name, (uintmax_t) lun->lun_id, 387261757Strasz cl->l_lun, cl->l_target->t_name); 388255570Strasz } 389255570Strasz } 390255570Strasz 391255570Strasz return (conf); 392255570Strasz} 393255570Strasz 394255570Straszint 395255570Straszkernel_lun_add(struct lun *lun) 396255570Strasz{ 397255570Strasz struct lun_option *lo; 398255570Strasz struct ctl_lun_req req; 399255570Strasz char *tmp; 400255570Strasz int error, i, num_options; 401255570Strasz 402255570Strasz bzero(&req, sizeof(req)); 403255570Strasz 404255570Strasz strlcpy(req.backend, lun->l_backend, sizeof(req.backend)); 405255570Strasz req.reqtype = CTL_LUNREQ_CREATE; 406255570Strasz 407255570Strasz req.reqdata.create.blocksize_bytes = lun->l_blocksize; 408255570Strasz 409255570Strasz if (lun->l_size != 0) 410255570Strasz req.reqdata.create.lun_size_bytes = lun->l_size; 411255570Strasz 412255570Strasz req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE; 413255570Strasz req.reqdata.create.device_type = T_DIRECT; 414255570Strasz 415255570Strasz if (lun->l_serial != NULL) { 416255570Strasz strlcpy(req.reqdata.create.serial_num, lun->l_serial, 417255570Strasz sizeof(req.reqdata.create.serial_num)); 418255570Strasz req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM; 419255570Strasz } 420255570Strasz 421255570Strasz if (lun->l_device_id != NULL) { 422255570Strasz strlcpy(req.reqdata.create.device_id, lun->l_device_id, 423255570Strasz sizeof(req.reqdata.create.device_id)); 424255570Strasz req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID; 425255570Strasz } 426255570Strasz 427255570Strasz if (lun->l_path != NULL) { 428255570Strasz lo = lun_option_find(lun, "file"); 429255570Strasz if (lo != NULL) { 430255570Strasz lun_option_set(lo, lun->l_path); 431255570Strasz } else { 432255570Strasz lo = lun_option_new(lun, "file", lun->l_path); 433255570Strasz assert(lo != NULL); 434255570Strasz } 435255570Strasz } 436255570Strasz 437255570Strasz lo = lun_option_find(lun, "cfiscsi_target"); 438255570Strasz if (lo != NULL) { 439261757Strasz lun_option_set(lo, lun->l_target->t_name); 440255570Strasz } else { 441255570Strasz lo = lun_option_new(lun, "cfiscsi_target", 442261757Strasz lun->l_target->t_name); 443255570Strasz assert(lo != NULL); 444255570Strasz } 445255570Strasz 446255570Strasz if (lun->l_target->t_alias != NULL) { 447255570Strasz lo = lun_option_find(lun, "cfiscsi_target_alias"); 448255570Strasz if (lo != NULL) { 449255570Strasz lun_option_set(lo, lun->l_target->t_alias); 450255570Strasz } else { 451255570Strasz lo = lun_option_new(lun, "cfiscsi_target_alias", 452255570Strasz lun->l_target->t_alias); 453255570Strasz assert(lo != NULL); 454255570Strasz } 455255570Strasz } 456255570Strasz 457255570Strasz asprintf(&tmp, "%d", lun->l_lun); 458255570Strasz if (tmp == NULL) 459255570Strasz log_errx(1, "asprintf"); 460255570Strasz lo = lun_option_find(lun, "cfiscsi_lun"); 461255570Strasz if (lo != NULL) { 462255570Strasz lun_option_set(lo, tmp); 463255570Strasz free(tmp); 464255570Strasz } else { 465255570Strasz lo = lun_option_new(lun, "cfiscsi_lun", tmp); 466255570Strasz free(tmp); 467255570Strasz assert(lo != NULL); 468255570Strasz } 469255570Strasz 470255570Strasz num_options = 0; 471255570Strasz TAILQ_FOREACH(lo, &lun->l_options, lo_next) 472255570Strasz num_options++; 473255570Strasz 474255570Strasz req.num_be_args = num_options; 475255570Strasz if (num_options > 0) { 476255570Strasz req.be_args = malloc(num_options * sizeof(*req.be_args)); 477255570Strasz if (req.be_args == NULL) { 478255570Strasz log_warn("error allocating %zd bytes", 479255570Strasz num_options * sizeof(*req.be_args)); 480255570Strasz return (1); 481255570Strasz } 482255570Strasz 483255570Strasz i = 0; 484255570Strasz TAILQ_FOREACH(lo, &lun->l_options, lo_next) { 485255570Strasz /* 486255570Strasz * +1 for the terminating '\0' 487255570Strasz */ 488255570Strasz req.be_args[i].namelen = strlen(lo->lo_name) + 1; 489255570Strasz req.be_args[i].name = lo->lo_name; 490255570Strasz req.be_args[i].vallen = strlen(lo->lo_value) + 1; 491255570Strasz req.be_args[i].value = lo->lo_value; 492255570Strasz req.be_args[i].flags = CTL_BEARG_ASCII | CTL_BEARG_RD; 493255570Strasz i++; 494255570Strasz } 495255570Strasz assert(i == num_options); 496255570Strasz } 497255570Strasz 498255570Strasz error = ioctl(ctl_fd, CTL_LUN_REQ, &req); 499255570Strasz free(req.be_args); 500255570Strasz if (error != 0) { 501255570Strasz log_warn("error issuing CTL_LUN_REQ ioctl"); 502255570Strasz return (1); 503255570Strasz } 504255570Strasz 505255570Strasz if (req.status == CTL_LUN_ERROR) { 506255570Strasz log_warnx("error returned from LUN creation request: %s", 507255570Strasz req.error_str); 508255570Strasz return (1); 509255570Strasz } 510255570Strasz 511255570Strasz if (req.status != CTL_LUN_OK) { 512255570Strasz log_warnx("unknown LUN creation request status %d", 513255570Strasz req.status); 514255570Strasz return (1); 515255570Strasz } 516255570Strasz 517255570Strasz lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id); 518255570Strasz 519255570Strasz return (0); 520255570Strasz} 521255570Strasz 522255570Straszint 523255570Straszkernel_lun_resize(struct lun *lun) 524255570Strasz{ 525255570Strasz struct ctl_lun_req req; 526255570Strasz 527255570Strasz bzero(&req, sizeof(req)); 528255570Strasz 529255570Strasz strlcpy(req.backend, lun->l_backend, sizeof(req.backend)); 530255570Strasz req.reqtype = CTL_LUNREQ_MODIFY; 531255570Strasz 532255570Strasz req.reqdata.modify.lun_id = lun->l_ctl_lun; 533255570Strasz req.reqdata.modify.lun_size_bytes = lun->l_size; 534255570Strasz 535255570Strasz if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) { 536255570Strasz log_warn("error issuing CTL_LUN_REQ ioctl"); 537255570Strasz return (1); 538255570Strasz } 539255570Strasz 540255570Strasz if (req.status == CTL_LUN_ERROR) { 541255570Strasz log_warnx("error returned from LUN modification request: %s", 542255570Strasz req.error_str); 543255570Strasz return (1); 544255570Strasz } 545255570Strasz 546255570Strasz if (req.status != CTL_LUN_OK) { 547255570Strasz log_warnx("unknown LUN modification request status %d", 548255570Strasz req.status); 549255570Strasz return (1); 550255570Strasz } 551255570Strasz 552255570Strasz return (0); 553255570Strasz} 554255570Strasz 555255570Straszint 556255570Straszkernel_lun_remove(struct lun *lun) 557255570Strasz{ 558255570Strasz struct ctl_lun_req req; 559255570Strasz 560255570Strasz bzero(&req, sizeof(req)); 561255570Strasz 562255570Strasz strlcpy(req.backend, lun->l_backend, sizeof(req.backend)); 563255570Strasz req.reqtype = CTL_LUNREQ_RM; 564255570Strasz 565255570Strasz req.reqdata.rm.lun_id = lun->l_ctl_lun; 566255570Strasz 567255570Strasz if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) { 568255570Strasz log_warn("error issuing CTL_LUN_REQ ioctl"); 569255570Strasz return (1); 570255570Strasz } 571255570Strasz 572255570Strasz if (req.status == CTL_LUN_ERROR) { 573255570Strasz log_warnx("error returned from LUN removal request: %s", 574255570Strasz req.error_str); 575255570Strasz return (1); 576255570Strasz } 577255570Strasz 578255570Strasz if (req.status != CTL_LUN_OK) { 579255570Strasz log_warnx("unknown LUN removal request status %d", req.status); 580255570Strasz return (1); 581255570Strasz } 582255570Strasz 583255570Strasz return (0); 584255570Strasz} 585255570Strasz 586255570Straszvoid 587255570Straszkernel_handoff(struct connection *conn) 588255570Strasz{ 589255570Strasz struct ctl_iscsi req; 590255570Strasz 591255570Strasz bzero(&req, sizeof(req)); 592255570Strasz 593255570Strasz req.type = CTL_ISCSI_HANDOFF; 594255570Strasz strlcpy(req.data.handoff.initiator_name, 595255570Strasz conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name)); 596255570Strasz strlcpy(req.data.handoff.initiator_addr, 597255570Strasz conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr)); 598255570Strasz if (conn->conn_initiator_alias != NULL) { 599255570Strasz strlcpy(req.data.handoff.initiator_alias, 600255570Strasz conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias)); 601255570Strasz } 602255570Strasz strlcpy(req.data.handoff.target_name, 603261757Strasz conn->conn_target->t_name, sizeof(req.data.handoff.target_name)); 604264524Strasz#ifdef ICL_KERNEL_PROXY 605264524Strasz if (proxy_mode) 606264524Strasz req.data.handoff.connection_id = conn->conn_socket; 607264524Strasz else 608264524Strasz req.data.handoff.socket = conn->conn_socket; 609264524Strasz#else 610255570Strasz req.data.handoff.socket = conn->conn_socket; 611264524Strasz#endif 612255570Strasz req.data.handoff.portal_group_tag = 613255570Strasz conn->conn_portal->p_portal_group->pg_tag; 614255570Strasz if (conn->conn_header_digest == CONN_DIGEST_CRC32C) 615255570Strasz req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C; 616255570Strasz if (conn->conn_data_digest == CONN_DIGEST_CRC32C) 617255570Strasz req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C; 618255570Strasz req.data.handoff.cmdsn = conn->conn_cmdsn; 619255570Strasz req.data.handoff.statsn = conn->conn_statsn; 620255570Strasz req.data.handoff.max_recv_data_segment_length = 621255570Strasz conn->conn_max_data_segment_length; 622255570Strasz req.data.handoff.max_burst_length = conn->conn_max_burst_length; 623255570Strasz req.data.handoff.immediate_data = conn->conn_immediate_data; 624255570Strasz 625264526Strasz if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 626255570Strasz log_err(1, "error issuing CTL_ISCSI ioctl; " 627255570Strasz "dropping connection"); 628264526Strasz } 629255570Strasz 630264526Strasz if (req.status != CTL_ISCSI_OK) { 631255570Strasz log_errx(1, "error returned from CTL iSCSI handoff request: " 632255570Strasz "%s; dropping connection", req.error_str); 633264526Strasz } 634255570Strasz} 635255570Strasz 636255570Straszint 637255570Straszkernel_port_on(void) 638255570Strasz{ 639255570Strasz struct ctl_port_entry entry; 640255570Strasz int error; 641255570Strasz 642255678Strasz bzero(&entry, sizeof(entry)); 643255570Strasz 644255570Strasz entry.port_type = CTL_PORT_ISCSI; 645255570Strasz entry.targ_port = -1; 646255570Strasz 647255570Strasz error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry); 648255570Strasz if (error != 0) { 649255570Strasz log_warn("CTL_ENABLE_PORT ioctl failed"); 650255570Strasz return (-1); 651255570Strasz } 652255570Strasz 653255570Strasz return (0); 654255570Strasz} 655255570Strasz 656255570Straszint 657255570Straszkernel_port_off(void) 658255570Strasz{ 659255570Strasz struct ctl_port_entry entry; 660255570Strasz int error; 661255570Strasz 662255678Strasz bzero(&entry, sizeof(entry)); 663255570Strasz 664255570Strasz entry.port_type = CTL_PORT_ISCSI; 665255570Strasz entry.targ_port = -1; 666255570Strasz 667255570Strasz error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry); 668255570Strasz if (error != 0) { 669255570Strasz log_warn("CTL_DISABLE_PORT ioctl failed"); 670255570Strasz return (-1); 671255570Strasz } 672255570Strasz 673255570Strasz return (0); 674255570Strasz} 675255570Strasz 676255570Strasz#ifdef ICL_KERNEL_PROXY 677255570Straszvoid 678264526Straszkernel_listen(struct addrinfo *ai, bool iser, int portal_id) 679255570Strasz{ 680255570Strasz struct ctl_iscsi req; 681255570Strasz 682255570Strasz bzero(&req, sizeof(req)); 683255570Strasz 684255570Strasz req.type = CTL_ISCSI_LISTEN; 685255570Strasz req.data.listen.iser = iser; 686255570Strasz req.data.listen.domain = ai->ai_family; 687255570Strasz req.data.listen.socktype = ai->ai_socktype; 688255570Strasz req.data.listen.protocol = ai->ai_protocol; 689255570Strasz req.data.listen.addr = ai->ai_addr; 690255570Strasz req.data.listen.addrlen = ai->ai_addrlen; 691264526Strasz req.data.listen.portal_id = portal_id; 692255570Strasz 693264526Strasz if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) 694261765Strasz log_err(1, "error issuing CTL_ISCSI ioctl"); 695261765Strasz 696261765Strasz if (req.status != CTL_ISCSI_OK) { 697261765Strasz log_errx(1, "error returned from CTL iSCSI listen: %s", 698261765Strasz req.error_str); 699261765Strasz } 700255570Strasz} 701255570Strasz 702264526Straszvoid 703264526Straszkernel_accept(int *connection_id, int *portal_id) 704255570Strasz{ 705255570Strasz struct ctl_iscsi req; 706255570Strasz 707255570Strasz bzero(&req, sizeof(req)); 708255570Strasz 709255570Strasz req.type = CTL_ISCSI_ACCEPT; 710255570Strasz 711264526Strasz if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) 712264526Strasz log_err(1, "error issuing CTL_ISCSI ioctl"); 713255570Strasz 714261765Strasz if (req.status != CTL_ISCSI_OK) { 715264526Strasz log_errx(1, "error returned from CTL iSCSI accept: %s", 716261765Strasz req.error_str); 717261765Strasz } 718261765Strasz 719264526Strasz *connection_id = req.data.accept.connection_id; 720264526Strasz *portal_id = req.data.accept.portal_id; 721255570Strasz} 722255570Strasz 723255570Straszvoid 724255570Straszkernel_send(struct pdu *pdu) 725255570Strasz{ 726255570Strasz struct ctl_iscsi req; 727255570Strasz 728255570Strasz bzero(&req, sizeof(req)); 729255570Strasz 730255570Strasz req.type = CTL_ISCSI_SEND; 731255570Strasz req.data.send.connection_id = pdu->pdu_connection->conn_socket; 732255570Strasz req.data.send.bhs = pdu->pdu_bhs; 733255570Strasz req.data.send.data_segment_len = pdu->pdu_data_len; 734255570Strasz req.data.send.data_segment = pdu->pdu_data; 735255570Strasz 736261765Strasz if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 737255570Strasz log_err(1, "error issuing CTL_ISCSI ioctl; " 738255570Strasz "dropping connection"); 739261765Strasz } 740255570Strasz 741261765Strasz if (req.status != CTL_ISCSI_OK) { 742255570Strasz log_errx(1, "error returned from CTL iSCSI send: " 743255570Strasz "%s; dropping connection", req.error_str); 744261765Strasz } 745255570Strasz} 746255570Strasz 747255570Straszvoid 748255570Straszkernel_receive(struct pdu *pdu) 749255570Strasz{ 750255570Strasz struct ctl_iscsi req; 751255570Strasz 752255570Strasz pdu->pdu_data = malloc(MAX_DATA_SEGMENT_LENGTH); 753255570Strasz if (pdu->pdu_data == NULL) 754255570Strasz log_err(1, "malloc"); 755255570Strasz 756255570Strasz bzero(&req, sizeof(req)); 757255570Strasz 758255570Strasz req.type = CTL_ISCSI_RECEIVE; 759255570Strasz req.data.receive.connection_id = pdu->pdu_connection->conn_socket; 760255570Strasz req.data.receive.bhs = pdu->pdu_bhs; 761255570Strasz req.data.receive.data_segment_len = MAX_DATA_SEGMENT_LENGTH; 762255570Strasz req.data.receive.data_segment = pdu->pdu_data; 763255570Strasz 764261765Strasz if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) { 765255570Strasz log_err(1, "error issuing CTL_ISCSI ioctl; " 766255570Strasz "dropping connection"); 767261765Strasz } 768255570Strasz 769261765Strasz if (req.status != CTL_ISCSI_OK) { 770255570Strasz log_errx(1, "error returned from CTL iSCSI receive: " 771255570Strasz "%s; dropping connection", req.error_str); 772261765Strasz } 773255570Strasz 774255570Strasz} 775255570Strasz 776255570Strasz#endif /* ICL_KERNEL_PROXY */ 777255570Strasz 778255570Strasz/* 779255570Strasz * XXX: I CANT INTO LATIN 780255570Strasz */ 781255570Straszvoid 782255570Straszkernel_capsicate(void) 783255570Strasz{ 784255570Strasz int error; 785255570Strasz cap_rights_t rights; 786255570Strasz const unsigned long cmds[] = { CTL_ISCSI }; 787255570Strasz 788255570Strasz cap_rights_init(&rights, CAP_IOCTL); 789255570Strasz error = cap_rights_limit(ctl_fd, &rights); 790255570Strasz if (error != 0 && errno != ENOSYS) 791255570Strasz log_err(1, "cap_rights_limit"); 792255570Strasz 793255570Strasz error = cap_ioctls_limit(ctl_fd, cmds, 794255570Strasz sizeof(cmds) / sizeof(cmds[0])); 795255570Strasz if (error != 0 && errno != ENOSYS) 796255570Strasz log_err(1, "cap_ioctls_limit"); 797255570Strasz 798255570Strasz error = cap_enter(); 799255570Strasz if (error != 0 && errno != ENOSYS) 800255570Strasz log_err(1, "cap_enter"); 801255570Strasz 802255570Strasz if (cap_sandboxed()) 803255570Strasz log_debugx("Capsicum capability mode enabled"); 804255570Strasz else 805255570Strasz log_warnx("Capsicum capability mode not supported"); 806255570Strasz} 807255570Strasz 808