xref: /freebsd/libexec/rc/rc.d/devmatch (revision 4e99f45480598189d49d45a825533a6c9e12f02c)
1#!/bin/sh
2
3# Copyright (c) 2018 M. Warner Losh <imp@FreeBSD.org>
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD$
27#
28# PROVIDE: devmatch
29# REQUIRE: kldxref
30# BEFORE: netif
31# KEYWORD: nojail
32
33. /etc/rc.subr
34
35name="devmatch"
36desc="Use devmatch(8) to load kernel modules"
37rcvar="${name}_enable"
38
39start_cmd="${name}_start"
40stop_cmd=':'
41one_nomatch="$2"
42
43devmatch_start()
44{
45	local x m list
46
47	if [ -n "$one_nomatch" ]; then
48		list=$(devmatch -p "${one_nomatch}" | sort -u)
49	else
50		list=$(devmatch | sort -u)
51	fi
52
53	[ -n "$list" ] || return
54
55	# While kldload can accept multiple modules
56	# on the line at once, we loop here in case
57	# there's some weird error with one of them.
58	# We also optimize against the false positives
59	# or drivers that have symbolic links that
60	# confuse devmatch by running it -n.
61	# Finally, we filter out all items in the
62	# devmactch_blacklist.
63	devctl freeze
64	x=$(echo ${devmatch_blacklist} | tr ' ' '#')
65	for m in ${list}; do
66		case "#${x}#" in
67		*"#${m}#"*) continue ;;
68		esac
69		echo "Autoloading module: ${m}"
70		kldload -n ${m}
71	done
72	devctl thaw
73}
74
75load_rc_config $name
76run_rc_command "$1"
77