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 __FBSDID("$FreeBSD$"); 37 38 #include <sys/ioctl.h> 39 #include <sys/stdint.h> 40 #include <sys/types.h> 41 #include <sys/endian.h> 42 #include <sys/sbuf.h> 43 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 #include <inttypes.h> 49 #include <limits.h> 50 #include <fcntl.h> 51 52 #include <cam/cam.h> 53 #include <cam/cam_debug.h> 54 #include <cam/cam_ccb.h> 55 #include <cam/scsi/scsi_all.h> 56 #include <cam/scsi/scsi_da.h> 57 #include <cam/scsi/scsi_pass.h> 58 #include <cam/scsi/scsi_message.h> 59 #include <cam/scsi/smp_all.h> 60 #include <cam/ata/ata_all.h> 61 #include <camlib.h> 62 #include <libxo/xo.h> 63 64 #include "iscsictl.h" 65 66 void 67 print_periphs(int session_id) 68 { 69 union ccb ccb; 70 int bufsize, fd; 71 unsigned int i; 72 int have_path_id, skip_bus, skip_device; 73 path_id_t path_id; 74 75 if ((fd = open(XPT_DEVICE, O_RDWR)) == -1) { 76 xo_warn("couldn't open %s", XPT_DEVICE); 77 return; 78 } 79 80 /* 81 * First, iterate over the whole list to find the bus. 82 */ 83 84 bzero(&ccb, sizeof(union ccb)); 85 86 ccb.ccb_h.path_id = CAM_XPT_PATH_ID; 87 ccb.ccb_h.target_id = CAM_TARGET_WILDCARD; 88 ccb.ccb_h.target_lun = CAM_LUN_WILDCARD; 89 90 ccb.ccb_h.func_code = XPT_DEV_MATCH; 91 bufsize = sizeof(struct dev_match_result) * 100; 92 ccb.cdm.match_buf_len = bufsize; 93 ccb.cdm.matches = (struct dev_match_result *)malloc(bufsize); 94 if (ccb.cdm.matches == NULL) { 95 xo_warnx("can't malloc memory for matches"); 96 close(fd); 97 return; 98 } 99 ccb.cdm.num_matches = 0; 100 101 /* 102 * We fetch all nodes, since we display most of them in the default 103 * case, and all in the verbose case. 104 */ 105 ccb.cdm.num_patterns = 0; 106 ccb.cdm.pattern_buf_len = 0; 107 108 path_id = -1; /* Make GCC happy. */ 109 have_path_id = 0; 110 skip_bus = 1; 111 skip_device = 1; 112 113 xo_open_container("devices"); 114 xo_open_list("lun"); 115 /* 116 * We do the ioctl multiple times if necessary, in case there are 117 * more than 100 nodes in the EDT. 118 */ 119 do { 120 if (ioctl(fd, CAMIOCOMMAND, &ccb) == -1) { 121 xo_warn("error sending CAMIOCOMMAND ioctl"); 122 break; 123 } 124 125 if ((ccb.ccb_h.status != CAM_REQ_CMP) 126 || ((ccb.cdm.status != CAM_DEV_MATCH_LAST) 127 && (ccb.cdm.status != CAM_DEV_MATCH_MORE))) { 128 xo_warnx("got CAM error %#x, CDM error %d\n", 129 ccb.ccb_h.status, ccb.cdm.status); 130 break; 131 } 132 133 for (i = 0; i < ccb.cdm.num_matches; i++) { 134 switch (ccb.cdm.matches[i].type) { 135 case DEV_MATCH_BUS: { 136 struct bus_match_result *bus_result; 137 138 bus_result = &ccb.cdm.matches[i].result.bus_result; 139 140 skip_bus = 1; 141 142 if (strcmp(bus_result->dev_name, "iscsi") != 0) { 143 //printf("not iscsi\n"); 144 continue; 145 } 146 147 if ((int)bus_result->unit_number != session_id) { 148 //printf("wrong unit, %d != %d\n", bus_result->unit_number, session_id); 149 continue; 150 } 151 skip_bus = 0; 152 } 153 case DEV_MATCH_DEVICE: { 154 skip_device = 1; 155 156 if (skip_bus != 0) 157 continue; 158 159 skip_device = 0; 160 break; 161 } 162 case DEV_MATCH_PERIPH: { 163 struct periph_match_result *periph_result; 164 165 periph_result = 166 &ccb.cdm.matches[i].result.periph_result; 167 168 if (skip_device != 0) 169 continue; 170 171 if (strcmp(periph_result->periph_name, "pass") == 0) 172 continue; 173 174 xo_open_instance("lun"); 175 xo_emit("{e:lun/%d}", periph_result->target_lun); 176 xo_emit("{Vq:device/%s%d} ", 177 periph_result->periph_name, 178 periph_result->unit_number); 179 xo_close_instance("lun"); 180 181 if (have_path_id == 0) { 182 path_id = periph_result->path_id; 183 have_path_id = 1; 184 } 185 186 break; 187 } 188 default: 189 fprintf(stdout, "unknown match type\n"); 190 break; 191 } 192 } 193 194 } while ((ccb.ccb_h.status == CAM_REQ_CMP) 195 && (ccb.cdm.status == CAM_DEV_MATCH_MORE)); 196 xo_close_list("lun"); 197 198 xo_emit("{e:scbus/%d}{e:bus/%d}{e:target/%d}", 199 have_path_id ? (int)path_id : -1, 0, have_path_id ? 0 : -1); 200 xo_close_container("devices"); 201 202 close(fd); 203 } 204 205