1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1997-2007 Kenneth D. Merry 5 * Copyright (c) 2012 The FreeBSD Foundation 6 * All rights reserved. 7 * 8 * Portions of this software were developed by Edward Tomasz Napierala 9 * under sponsorship from the FreeBSD Foundation. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 36#include <sys/ioctl.h> 37#include <sys/stdint.h> 38#include <sys/types.h> 39#include <sys/endian.h> 40#include <sys/sbuf.h> 41 42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45#include <unistd.h> 46#include <inttypes.h> 47#include <limits.h> 48#include <fcntl.h> 49 50#include <cam/cam.h> 51#include <cam/cam_debug.h> 52#include <cam/cam_ccb.h> 53#include <cam/scsi/scsi_all.h> 54#include <cam/scsi/scsi_da.h> 55#include <cam/scsi/scsi_pass.h> 56#include <cam/scsi/scsi_message.h> 57#include <cam/scsi/smp_all.h> 58#include <cam/ata/ata_all.h> 59#include <camlib.h> 60#include <libxo/xo.h> 61 62#include "iscsictl.h" 63 64void 65print_periphs(int session_id) 66{ 67 union ccb ccb; 68 int bufsize, fd; 69 unsigned int i; 70 int have_path_id, skip_bus, skip_device; 71 path_id_t path_id; 72 73 if ((fd = open(XPT_DEVICE, O_RDWR)) == -1) { 74 xo_warn("couldn't open %s", XPT_DEVICE); 75 return; 76 } 77 78 /* 79 * First, iterate over the whole list to find the bus. 80 */ 81 82 bzero(&ccb, sizeof(union ccb)); 83 84 ccb.ccb_h.path_id = CAM_XPT_PATH_ID; 85 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD; 86 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD; 87 88 ccb.ccb_h.func_code = XPT_DEV_MATCH; 89 bufsize = sizeof(struct dev_match_result) * 100; 90 ccb.cdm.match_buf_len = bufsize; 91 ccb.cdm.matches = (struct dev_match_result *)malloc(bufsize); 92 if (ccb.cdm.matches == NULL) { 93 xo_warnx("can't malloc memory for matches"); 94 close(fd); 95 return; 96 } 97 ccb.cdm.num_matches = 0; 98 99 /* 100 * We fetch all nodes, since we display most of them in the default 101 * case, and all in the verbose case. 102 */ 103 ccb.cdm.num_patterns = 0; 104 ccb.cdm.pattern_buf_len = 0; 105 106 path_id = -1; /* Make GCC happy. */ 107 have_path_id = 0; 108 skip_bus = 1; 109 skip_device = 1; 110 111 xo_open_container("devices"); 112 xo_open_list("lun"); 113 /* 114 * We do the ioctl multiple times if necessary, in case there are 115 * more than 100 nodes in the EDT. 116 */ 117 do { 118 if (ioctl(fd, CAMIOCOMMAND, &ccb) == -1) { 119 xo_warn("error sending CAMIOCOMMAND ioctl"); 120 break; 121 } 122 123 if ((ccb.ccb_h.status != CAM_REQ_CMP) 124 || ((ccb.cdm.status != CAM_DEV_MATCH_LAST) 125 && (ccb.cdm.status != CAM_DEV_MATCH_MORE))) { 126 xo_warnx("got CAM error %#x, CDM error %d\n", 127 ccb.ccb_h.status, ccb.cdm.status); 128 break; 129 } 130 131 for (i = 0; i < ccb.cdm.num_matches; i++) { 132 switch (ccb.cdm.matches[i].type) { 133 case DEV_MATCH_BUS: { 134 struct bus_match_result *bus_result; 135 136 bus_result = &ccb.cdm.matches[i].result.bus_result; 137 138 skip_bus = 1; 139 140 if (strcmp(bus_result->dev_name, "iscsi") != 0) { 141 //printf("not iscsi\n"); 142 continue; 143 } 144 145 if ((int)bus_result->unit_number != session_id) { 146 //printf("wrong unit, %d != %d\n", bus_result->unit_number, session_id); 147 continue; 148 } 149 skip_bus = 0; 150 } 151 case DEV_MATCH_DEVICE: { 152 skip_device = 1; 153 154 if (skip_bus != 0) 155 continue; 156 157 skip_device = 0; 158 break; 159 } 160 case DEV_MATCH_PERIPH: { 161 struct periph_match_result *periph_result; 162 163 periph_result = 164 &ccb.cdm.matches[i].result.periph_result; 165 166 if (skip_device != 0) 167 continue; 168 169 if (strcmp(periph_result->periph_name, "pass") == 0) 170 continue; 171 172 xo_open_instance("lun"); 173 xo_emit("{e:lun/%d}", periph_result->target_lun); 174 xo_emit("{Vq:device/%s%d} ", 175 periph_result->periph_name, 176 periph_result->unit_number); 177 xo_close_instance("lun"); 178 179 if (have_path_id == 0) { 180 path_id = periph_result->path_id; 181 have_path_id = 1; 182 } 183 184 break; 185 } 186 default: 187 fprintf(stdout, "unknown match type\n"); 188 break; 189 } 190 } 191 192 } while ((ccb.ccb_h.status == CAM_REQ_CMP) 193 && (ccb.cdm.status == CAM_DEV_MATCH_MORE)); 194 xo_close_list("lun"); 195 196 xo_emit("{e:scbus/%d}{e:bus/%d}{e:target/%d}", 197 have_path_id ? (int)path_id : -1, 0, have_path_id ? 0 : -1); 198 xo_close_container("devices"); 199 200 close(fd); 201} 202 203