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68 lines
1.7 KiB
68 lines
1.7 KiB
2 months ago
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#! /bin/bash
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# shellcheck disable=SC2164
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rpm_buildroot="$1"
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module_dir="$2"
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module_list="$3"
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blacklist_conf_files="$(mktemp)"
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blacklist()
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{
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mkdir -p "$rpm_buildroot/etc/modprobe.d/"
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cat > "$rpm_buildroot/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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echo "%config(noreplace) /etc/modprobe.d/$1-blacklist.conf" >> "$blacklist_conf_files"
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}
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check_blacklist()
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{
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mod="$rpm_buildroot/$1"
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[ ! "$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 "$mod"
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fi
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}
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foreachp()
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{
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P=$(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=$((bgcount - 1))
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fi
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done
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wait
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}
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# Many BIOS-es export a PNP-id which causes the floppy driver to autoload
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# even though most modern systems don't have a 3.5" floppy driver anymore
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# this replaces the old die_floppy_die.patch which removed the PNP-id from
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# the module
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floppylist=("$rpm_buildroot"/"$module_dir"/kernel/drivers/block/floppy.ko*)
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if [[ -n ${floppylist[0]} && -f ${floppylist[0]} ]]; then
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blacklist "floppy"
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fi
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foreachp check_blacklist < "$module_list"
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cat "$blacklist_conf_files" >> "$module_list"
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rm -f "$blacklist_conf_files"
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