b68de8941f
when listing the whole tree. The list, however, is from the requested device to the root (so it backwards from the normal tree). Sponsored by: Netflix
291 lines
6.7 KiB
C
291 lines
6.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2000, 2001 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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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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*
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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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/*
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* Print information about system device configuration.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <err.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 "devinfo.h"
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static int rflag;
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static int vflag;
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static void print_resource(struct devinfo_res *);
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static int print_device_matching_resource(struct devinfo_res *, void *);
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static int print_device_rman_resources(struct devinfo_rman *, void *);
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static int print_device(struct devinfo_dev *, void *);
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static int print_rman_resource(struct devinfo_res *, void *);
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static int print_rman(struct devinfo_rman *, void *);
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struct indent_arg
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{
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int indent;
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void *arg;
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};
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/*
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* Print a resource.
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*/
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void
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print_resource(struct devinfo_res *res)
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{
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struct devinfo_rman *rman;
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int hexmode;
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rman = devinfo_handle_to_rman(res->dr_rman);
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hexmode = (rman->dm_size > 1000) || (rman->dm_size == 0);
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printf(hexmode ? "0x%jx" : "%ju", res->dr_start);
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if (res->dr_size > 1)
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printf(hexmode ? "-0x%jx" : "-%ju",
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res->dr_start + res->dr_size - 1);
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}
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/*
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* Print resource information if this resource matches the
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* given device.
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*
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* If the given indent is 0, return an indicator that a matching
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* resource exists.
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*/
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int
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print_device_matching_resource(struct devinfo_res *res, void *arg)
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{
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struct indent_arg *ia = (struct indent_arg *)arg;
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struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg;
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int i;
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if (devinfo_handle_to_device(res->dr_device) == dev) {
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/* in 'detect' mode, found a match */
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if (ia->indent == 0)
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return(1);
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for (i = 0; i < ia->indent; i++)
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printf(" ");
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print_resource(res);
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printf("\n");
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}
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return(0);
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}
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/*
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* Print resource information for this device and resource manager.
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*/
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int
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print_device_rman_resources(struct devinfo_rman *rman, void *arg)
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{
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struct indent_arg *ia = (struct indent_arg *)arg;
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int indent, i;
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indent = ia->indent;
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/* check whether there are any resources matching this device */
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ia->indent = 0;
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if (devinfo_foreach_rman_resource(rman,
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print_device_matching_resource, ia) != 0) {
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/* there are, print header */
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for (i = 0; i < indent; i++)
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printf(" ");
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printf("%s:\n", rman->dm_desc);
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/* print resources */
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ia->indent = indent + 4;
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devinfo_foreach_rman_resource(rman,
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print_device_matching_resource, ia);
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}
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ia->indent = indent;
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return(0);
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}
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static void
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print_dev(struct devinfo_dev *dev)
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{
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printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
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if (vflag && *dev->dd_pnpinfo)
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printf(" pnpinfo %s", dev->dd_pnpinfo);
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if (vflag && *dev->dd_location)
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printf(" at %s", dev->dd_location);
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if (!(dev->dd_flags & DF_ENABLED))
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printf(" (disabled)");
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else if (dev->dd_flags & DF_SUSPENDED)
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printf(" (suspended)");
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}
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/*
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* Print information about a device.
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*/
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int
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print_device(struct devinfo_dev *dev, void *arg)
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{
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struct indent_arg ia;
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int i, indent;
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if (vflag || (dev->dd_name[0] != 0 && dev->dd_state >= DS_ATTACHED)) {
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indent = (int)(intptr_t)arg;
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for (i = 0; i < indent; i++)
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printf(" ");
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print_dev(dev);
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printf("\n");
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if (rflag) {
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ia.indent = indent + 4;
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ia.arg = dev;
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devinfo_foreach_rman(print_device_rman_resources,
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(void *)&ia);
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}
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}
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return(devinfo_foreach_device_child(dev, print_device,
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(void *)((char *)arg + 2)));
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}
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/*
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* Print information about a resource under a resource manager.
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*/
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int
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print_rman_resource(struct devinfo_res *res, void *arg __unused)
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{
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struct devinfo_dev *dev;
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printf(" ");
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print_resource(res);
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dev = devinfo_handle_to_device(res->dr_device);
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if ((dev != NULL) && (dev->dd_name[0] != 0)) {
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printf(" (%s)", dev->dd_name);
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} else {
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printf(" ----");
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}
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printf("\n");
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return(0);
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}
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/*
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* Print information about a resource manager.
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*/
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int
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print_rman(struct devinfo_rman *rman, void *arg __unused)
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{
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printf("%s:\n", rman->dm_desc);
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devinfo_foreach_rman_resource(rman, print_rman_resource, 0);
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return(0);
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}
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static int
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print_path(struct devinfo_dev *dev, void *xname)
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{
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const char *name = xname;
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int rv;
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if (strcmp(dev->dd_name, name) == 0) {
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print_dev(dev);
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if (vflag)
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printf("\n");
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return (1);
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}
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rv = devinfo_foreach_device_child(dev, print_path, xname);
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if (rv == 1) {
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printf(" ");
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print_dev(dev);
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if (vflag)
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printf("\n");
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}
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return (rv);
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}
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static void __dead2
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n%s\n",
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"usage: devinfo [-rv]",
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" devinfo -u",
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" devifno -p dev [-v]");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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struct devinfo_dev *root;
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int c, uflag;
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char *path = NULL;
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uflag = 0;
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while ((c = getopt(argc, argv, "p:ruv")) != -1) {
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switch(c) {
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case 'p':
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path = optarg;
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break;
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case 'r':
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rflag++;
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break;
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case 'u':
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uflag++;
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break;
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case 'v':
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vflag++;
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break;
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default:
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usage();
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}
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}
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if (path && (rflag || uflag))
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usage();
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if (devinfo_init())
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err(1, "devinfo_init");
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if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL)
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errx(1, "can't find root device");
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if (path) {
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if (devinfo_foreach_device_child(root, print_path, (void *)path) == 0)
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errx(1, "%s: Not found", path);
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if (!vflag)
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printf("\n");
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} else if (uflag) {
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/* print resource usage? */
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devinfo_foreach_rman(print_rman, NULL);
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} else {
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/* print device hierarchy */
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devinfo_foreach_device_child(root, print_device, (void *)0);
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}
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return(0);
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}
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