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- From 73536d15c80be96049289d96fc32122467c56b1d Mon Sep 17 00:00:00 2001
- From: Matt Weber <matthew.weber@rockwellcollins.com>
- Date: Mon, 16 Dec 2019 13:27:30 -0600
- Subject: [PATCH] ebtables: replace ebtables-save perl script with bash rewrite
- Fedora provides a bash replacement for the default ebtables-save perl
- script. Using it allows the ebtables run-time dependency on perl to
- be replaced with a runtime dependency on bash - which is lower
- overhead and more likely to be present on typical embedded systems
- already.
- https://bugzilla.redhat.com/show_bug.cgi?id=746040
- http://pkgs.fedoraproject.org/cgit/rpms/ebtables.git/tree/ebtables-save
- Upstream:
- https://github.com/openembedded/meta-openembedded/commit/7f723007364ba79de05447671e83d4eefb3097dc
- Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
- ---
- ebtables-save.sh | 43 +++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 43 insertions(+)
- create mode 100644 ebtables-save.sh
- diff --git a/ebtables-save.sh b/ebtables-save.sh
- new file mode 100644
- index 0000000..2d7fc4e
- --- /dev/null
- +++ b/ebtables-save.sh
- @@ -0,0 +1,43 @@
- +#!/bin/bash
- +
- +EBTABLES="/sbin/ebtables"
- +
- +[ -x "$EBTABLES" ] || exit 1
- +
- +echo "# Generated by ebtables-save v1.0 on $(date)"
- +
- +cnt=""
- +[ "x$EBTABLES_SAVE_COUNTER" = "xyes" ] && cnt="--Lc"
- +
- +for table_name in $(grep -E '^ebtable_' /proc/modules | cut -f1 -d' ' | sed s/ebtable_//); do
- + table=$($EBTABLES -t $table_name -L $cnt)
- + [ $? -eq 0 ] || { echo "$table"; exit -1; }
- +
- + chain=""
- + rules=""
- + while read line; do
- + [ -z "$line" ] && continue
- +
- + case "$line" in
- + Bridge\ table:\ *)
- + echo "*${line:14}"
- + ;;
- + Bridge\ chain:\ *)
- + chain="${line:14}"
- + chain="${chain%%,*}"
- + policy="${line##*policy: }"
- + echo ":$chain $policy"
- + ;;
- + *)
- + if [ "$cnt" = "--Lc" ]; then
- + line=${line/, pcnt \=/ -c}
- + line=${line/-- bcnt \=/}
- + fi
- + rules="$rules-A $chain $line\n"
- + ;;
- + esac
- + done <<EOF
- +$table
- +EOF
- + echo -e $rules
- +done
- --
- 2.17.1
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