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#! /bin/bash -efu
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# heavily based upon find-suggests.ksyms by Andreas Gruenbacher <agruen@suse.de>.
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# with modifications by Michael Brown <Michael_E_Brown@dell.com>
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#
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# -- added module versioning info to modalias() symbols
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# -- removed code which inspects spec files.
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IFS=$'\n'
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#
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# Initially, dont generate modalias() lines for kernel package. This needs
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# additional discussion. Would like to eventually add them for
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# completeness, so that we can determine when drivers are folded into
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# mainline kernel.
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#
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is_kernel_package=""
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case "${1:-}" in
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kernel-module-*) ;; # Fedora kernel module package names start with
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# kernel-module.
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kernel*) is_kernel_package=1 ;;
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esac
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if ! [ -z "$is_kernel_package" ]; then
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cat > /dev/null
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exit 0
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fi
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# Check for presence of the commands used
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which /sbin/modinfo >/dev/null || exit 0
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which sed >/dev/null || exit 0
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which sort >/dev/null || exit 0
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print_modaliases() {
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declare class=$1 variants=$2 pos=$3
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if [ -n "$variants" ]; then
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echo "${class:0:pos}[$variants]${class:pos+1}"
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else
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[ -z "$class" ] || echo "$class"
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fi
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}
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combine_modaliases() {
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declare tag class variants="" pos="" n
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read class
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while read tag; do
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for ((n=0; n<${#class}; n++)); do
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if [ "*" != "${class:n:1}" -a \
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"${class:0:n}" = "${tag:0:n}" -a \
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"${class:n+1}" = "${tag:n+1}" ] &&
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( [ -z "$pos" ] || [ $n = $pos ] ); then
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variants="${variants:-${class:n:1}}${tag:n:1}"
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pos=$n
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break
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fi
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done
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if [ $n -eq ${#class} ]; then
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print_modaliases "$class" "$variants" "$pos"
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variants=
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pos=
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class=$tag
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fi
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done
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print_modaliases "$class" "$variants" "$pos"
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}
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for module in $(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz|\.zst)?$') "$@"; do
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# | head -n1 because some modules have *two* version tags. *cough*b44*cough*
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modver=$(/sbin/modinfo -F version "$module"| head -n1)
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modver=${modver//[^0-9a-zA-Z._]/_}
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# only add version tag if it has a version
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[ -z "$modver" ] || modver=" = $modver"
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/sbin/modinfo -F alias "$module" \
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| sed -nre "s,[^][0-9a-zA-Z._:*?/-],_,g; s,(.+),modalias(\\1)$modver,p"
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done \
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| sort -u \
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| combine_modaliases
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