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5549c6a62f
devmatch rc script would announce it was loading a module multiple times. It used kldload -n so it really wasn't loading it that many times, but the message is confusing. Use kldstat to see if we need to load the module before saying we do. This fixes the vast majority of the problems. It may be possible to race devmatch with a user invocation and devd, though quite hard. In that case we'll announce things twice, but still only load it once. No attempt is made to fix this. PR: 232782 MFC After: 2 weeks Sponsored by: Netflix
81 lines
2.6 KiB
Bash
Executable file
81 lines
2.6 KiB
Bash
Executable file
#!/bin/sh
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# Copyright (c) 2018 M. Warner Losh <imp@FreeBSD.org>
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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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# $FreeBSD$
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#
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# PROVIDE: devmatch
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# REQUIRE: kld
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# BEFORE: netif
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# KEYWORD: nojail
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. /etc/rc.subr
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name="devmatch"
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desc="Use devmatch(8) to load kernel modules"
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rcvar="${name}_enable"
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start_cmd="${name}_start"
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stop_cmd=':'
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one_nomatch="$2"
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devmatch_start()
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{
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local x m list
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if [ -n "$one_nomatch" ]; then
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list=$(devmatch -p "${one_nomatch}" | sort -u)
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else
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list=$(devmatch | sort -u)
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fi
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[ -n "$list" ] || return
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# While kldload can accept multiple modules on the line at once, we loop
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# here in case there's some weird error with one of them. We also
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# optimize against the false positives or drivers that have symbolic
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# links that confuse devmatch by running it -n. Finally, we filter out
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# all items in the devmatch_blocklist.
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#
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# We strip all the .ko suffixes off so that one may specify modules
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# with or without .ko. Prior version documented it was without, while
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# the code required it, so accept both now. devmatch produces module
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# names with .ko
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devctl freeze
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x=$(echo '#'${devmatch_blocklist:-${devmatch_blacklist}}'#' | \
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sed -e "s/ /#/g;s/\.ko#/#/g")
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for m in ${list}; do
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m="${m%.ko}"
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case "${x}" in
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*"#${m}#"*) continue ;;
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esac
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kldstat -q -n ${m} || \
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(echo "Autoloading module: ${m}"; kldload -n ${m})
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done
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devctl thaw
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}
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load_rc_config $name
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run_rc_command "$1"
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