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165 lines
4.2 KiB
165 lines
4.2 KiB
#! /bin/bash
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# shellcheck disable=SC2164
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RpmDir=$1
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ModDir=$2
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Dir="$1/$2"
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# Note the list filename must have the format mod-[PACKAGE].list, for example,
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# mod-internal.list or mod-extra.list. The PACKAGE is used to create a
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# override directory for the modules.
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List=$3
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Dest="$4"
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blacklist()
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{
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cat > "$RpmDir/etc/modprobe.d/$1-blacklist.conf" <<-__EOF__
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# This kernel module can be automatically loaded by non-root users. To
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# enhance system security, the module is blacklisted by default to ensure
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# system administrators make the module available for use as needed.
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# See https://access.redhat.com/articles/3760101 for more details.
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#
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# Remove the blacklist by adding a comment # at the start of the line.
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blacklist $1
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__EOF__
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}
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check_blacklist()
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{
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mod=$(find "$RpmDir/$ModDir" -name "$1")
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[ ! "$mod" ] && return 0
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if modinfo "$mod" | grep -q '^alias:\s\+net-'; then
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mod="${1##*/}"
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mod="${mod%.ko*}"
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echo "$mod has an alias that allows auto-loading. Blacklisting."
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blacklist "$mod"
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fi
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}
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find_depends()
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{
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dep=$1
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depends=$(modinfo "$dep" | sed -n -e "/^depends/ s/^depends:[ \t]*//p")
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[ -z "$depends" ] && exit
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for mod in ${depends//,/ }
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do
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match=$(grep "^$mod.ko" "$ListName")
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[ -z "$match" ] && continue
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# check if the module we are looking at is in mod-* too.
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# if so we do not need to mark the dep as required.
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mod2=${dep##*/} # same as $(basename $dep), but faster
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match2=$(grep "^$mod2" "$ListName")
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if [ -n "$match2" ]
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then
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#echo $mod2 >> notreq.list
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continue
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fi
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echo "$mod".ko >> req.list
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done
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}
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foreachp()
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{
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P=$(nproc)
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bgcount=0
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while read -r mod; do
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$1 "$mod" &
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bgcount=$((bgcount + 1))
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if [ $bgcount -eq "$P" ]; then
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wait -n
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bgcount=$((bgcount - 1))
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fi
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done
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wait
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}
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# Destination was specified on the command line
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test -n "$4" && echo "$0: Override Destination $Dest has been specified."
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pushd "$Dir"
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OverrideDir=$(basename "$List")
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OverrideDir=${OverrideDir%.*}
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OverrideDir=${OverrideDir#*-}
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mkdir -p "$OverrideDir"
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rm -rf modnames
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find . -name "*.ko" -type f > modnames
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# Look through all of the modules, and throw any that have a dependency in
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# our list into the list as well.
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rm -rf dep.list dep2.list
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rm -rf req.list req2.list
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touch dep.list req.list
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cp "$List" .
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# This variable needs to be exported because it is used in sub-script
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# executed by xargs
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ListName=$(basename "$List")
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export ListName
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foreachp find_depends < modnames
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sort -u req.list > req2.list
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sort -u "$ListName" > modules2.list
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join -v 1 modules2.list req2.list > modules3.list
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while IFS= read -r mod
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do
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# get the path for the module
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modpath=$(grep /"$mod" modnames)
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[ -z "$modpath" ] && continue
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echo "$modpath" >> dep.list
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done < modules3.list
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sort -u dep.list > dep2.list
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if [ -n "$Dest" ]; then
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# now move the modules into the $Dest directory
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while IFS= read -r mod
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do
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newpath=$(dirname "$mod" | sed -e "s/kernel\\//$Dest\//")
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mkdir -p "$newpath"
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mv "$mod" "$newpath"
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echo "$mod" | sed -e "s/kernel\\//$Dest\//" | sed -e "s|^.|${ModDir}|g" >> "$RpmDir"/"$ListName"
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done < dep2.list
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fi
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popd
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# If we're signing modules, we can't leave the .mod files for the .ko files
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# we've moved in .tmp_versions/. Remove them so the Kbuild 'modules_sign'
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# target doesn't try to sign a non-existent file. This is kinda ugly, but
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# so are the modules-* packages.
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while IFS= read -r mod
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do
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modfile=$(basename "$mod" | sed -e 's/.ko/.mod/')
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rm .tmp_versions/"$modfile"
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done < "$Dir"/dep2.list
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if [ -z "$Dest" ]; then
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sed -e "s|^.|${ModDir}|g" "$Dir"/dep2.list > "$RpmDir/$ListName"
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echo "./$RpmDir/$ListName created."
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[ -d "$RpmDir/etc/modprobe.d/" ] || mkdir -p "$RpmDir/etc/modprobe.d/"
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foreachp check_blacklist < "$List"
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fi
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# Many BIOS-es export a PNP-id which causes the floppy driver to autoload
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# even though most modern systems don't have a 3.5" floppy driver anymore
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# this replaces the old die_floppy_die.patch which removed the PNP-id from
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# the module
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floppylist=("$RpmDir"/"$ModDir"/kernel/drivers/block/floppy.ko*)
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if [[ -n ${floppylist[0]} && -f ${floppylist[0]} ]]; then
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blacklist "floppy"
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fi
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# avoid an empty kernel-extra package
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echo "$ModDir/$OverrideDir" >> "$RpmDir/$ListName"
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pushd "$Dir"
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rm modnames dep.list dep2.list req.list req2.list
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rm "$ListName" modules2.list modules3.list
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popd
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