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