xref: /freebsd/libexec/rc/rc.d/devmatch (revision f68801df100565820b35631a8709229141537baa)
1#!/bin/sh
2
3# Copyright (c) 2018 M. Warner Losh
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# KEYWORD: nojail
31
32. /etc/rc.subr
33
34name="devmatch"
35desc="Use devmatch(8) to load kernel modules"
36rcvar="${name}_enable"
37
38start_cmd="${name}_start"
39stop_cmd=':'
40one_nomatch="$2"
41
42devmatch_start()
43{
44	local x m list
45
46	if [ -n "$one_nomatch" ]; then
47		list=$(devmatch -p "${one_nomatch}" | sort -u)
48	else
49		list=$(devmatch | sort -u)
50	fi
51
52	[ -n "$list" ] || return
53
54	# While kldload can accept multiple modules
55	# on the line at once, we loop here in case
56	# there's some weird error with one of them.
57	# We also optimize against the false positives
58	# or drivers that have symbolic links that
59	# confuse devmatch by running it -n.
60	# Finally, we filter out all items in the
61	# devmactch_blacklist.
62	devctl freeze
63	x=$(echo ${devmatch_blacklist} | tr ' ' '#')
64	for m in ${list}; do
65		case "#${x}#" in
66		*"#${m}#"*) continue ;;
67		esac
68		echo "Autoloading module: ${m}"
69		kldload -n ${m}
70	done
71	devctl thaw
72}
73
74load_rc_config $name
75run_rc_command "$1"
76