/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1997-2007 Kenneth D. Merry
* Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
* Portions of this software were developed by Edward Tomasz Napierala
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/ioctl.h>
#include <sys/stdint.h>
#include <sys/types.h>
#include <sys/endian.h>
#include <sys/sbuf.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <inttypes.h>
#include <limits.h>
#include <fcntl.h>
#include <cam/cam.h>
#include <cam/cam_debug.h>
#include <cam/cam_ccb.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_da.h>
#include <cam/scsi/scsi_pass.h>
#include <cam/scsi/scsi_message.h>
#include <cam/scsi/smp_all.h>
#include <cam/ata/ata_all.h>
#include <camlib.h>
#include <libxo/xo.h>
#include "iscsictl.h"
void
print_periphs(int session_id)
{
union ccb ccb;
int bufsize, fd;
unsigned int i;
int have_path_id, skip_bus, skip_device;
path_id_t path_id;
if ((fd = open(XPT_DEVICE, O_RDWR)) == -1) {
xo_warn("couldn't open %s", XPT_DEVICE);
return;
}
/*
* First, iterate over the whole list to find the bus.
*/
bzero(&ccb, sizeof(union ccb));
ccb.ccb_h.path_id = CAM_XPT_PATH_ID;
ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
ccb.ccb_h.func_code = XPT_DEV_MATCH;
bufsize = sizeof(struct dev_match_result) * 100;
ccb.cdm.match_buf_len = bufsize;
ccb.cdm.matches = (struct dev_match_result *)malloc(bufsize);
if (ccb.cdm.matches == NULL) {
xo_warnx("can't malloc memory for matches");
close(fd);
return;
}
ccb.cdm.num_matches = 0;
/*
* We fetch all nodes, since we display most of them in the default
* case, and all in the verbose case.
*/
ccb.cdm.num_patterns = 0;
ccb.cdm.pattern_buf_len = 0;
path_id = -1; /* Make GCC happy. */
have_path_id = 0;
skip_bus = 1;
skip_device = 1;
xo_open_container("devices");
xo_open_list("lun");
/*
* We do the ioctl multiple times if necessary, in case there are
* more than 100 nodes in the EDT.
*/
do {
if (ioctl(fd, CAMIOCOMMAND, &ccb) == -1) {
xo_warn("error sending CAMIOCOMMAND ioctl");
break;
}
if ((ccb.ccb_h.status != CAM_REQ_CMP)
|| ((ccb.cdm.status != CAM_DEV_MATCH_LAST)
&& (ccb.cdm.status != CAM_DEV_MATCH_MORE))) {
xo_warnx("got CAM error %#x, CDM error %d\n",
ccb.ccb_h.status, ccb.cdm.status);
break;
}
for (i = 0; i < ccb.cdm.num_matches; i++) {
switch (ccb.cdm.matches[i].type) {
case DEV_MATCH_BUS: {
struct bus_match_result *bus_result;
bus_result = &ccb.cdm.matches[i].result.bus_result;
skip_bus = 1;
if (strcmp(bus_result->dev_name, "iscsi") != 0) {
//printf("not iscsi\n");
continue;
}
if ((int)bus_result->unit_number != session_id) {
//printf("wrong unit, %d != %d\n", bus_result->unit_number, session_id);
continue;
}
skip_bus = 0;
}
case DEV_MATCH_DEVICE: {
skip_device = 1;
if (skip_bus != 0)
continue;
skip_device = 0;
break;
}
case DEV_MATCH_PERIPH: {
struct periph_match_result *periph_result;
periph_result =
&ccb.cdm.matches[i].result.periph_result;
if (skip_device != 0)
continue;
if (strcmp(periph_result->periph_name, "pass") == 0)
continue;
xo_open_instance("lun");
xo_emit("{e:lun/%d}", periph_result->target_lun);
xo_emit("{Vq:device/%s%d} ",
periph_result->periph_name,
periph_result->unit_number);
xo_close_instance("lun");
if (have_path_id == 0) {
path_id = periph_result->path_id;
have_path_id = 1;
}
break;
}
default:
fprintf(stdout, "unknown match type\n");
break;
}
}
} while ((ccb.ccb_h.status == CAM_REQ_CMP)
&& (ccb.cdm.status == CAM_DEV_MATCH_MORE));
xo_close_list("lun");
xo_emit("{e:scbus/%d}{e:bus/%d}{e:target/%d}",
have_path_id ? (int)path_id : -1, 0, have_path_id ? 0 : -1);
xo_close_container("devices");
close(fd);
}
