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21928b97b0
A bridge device with only one underlying ethernet device is almost useless, for sure we want to support a bridge with multiple underlying devices. This patch adds the support by extending <ethname> in the original bridge= cmdline to a comma-separated list of ethernet interfaces. Cc: Harald Hoyer <harald@redhat.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
62 lines
1.5 KiB
Bash
Executable File
62 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# ex: ts=8 sw=4 sts=4 et filetype=sh
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#
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# Format:
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# bridge=<bridgename>:<ethnames>
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#
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# <ethnames> is a comma-separated list of physical (ethernet) interfaces
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# bridge without parameters assumes bridge=br0:eth0
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#
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# return if bridge already parsed
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[ -n "$bridgename" ] && return
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# Check if bridge parameter is valid
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if getarg bridge= >/dev/null ; then
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command -v brctl >/dev/null 2>&1 || die "No 'brctl' installed"
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fi
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parsebridge() {
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local v=${1}:
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set --
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while [ -n "$v" ]; do
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set -- "$@" "${v%%:*}"
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v=${v#*:}
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done
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unset bridgename ethnames
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case $# in
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0) bridgename=br0; ethnames=$iface ;;
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1) die "bridge= requires two parameters" ;;
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2) bridgename=$1; ethnames=$(echo $2|tr "," " ") ;;
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*) die "bridge= requires two parameters" ;;
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esac
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}
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unset bridgename ethnames
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iface=eth0
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if [ -e /tmp/bond.info ]; then
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. /tmp/bond.info
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if [ -n "$bondname" ] ; then
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iface=$bondname
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fi
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fi
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# Parse bridge for bridgename and ethnames
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if bridge="$(getarg bridge)"; then
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# Read bridge= parameters if they exist
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if [ -n "$bridge" ]; then
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parsebridge $bridge
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fi
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# Simple default bridge
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if [ -z "$bridgename" ]; then
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bridgename=br0
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ethnames=$iface
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fi
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echo "bridgename=$bridgename" > /tmp/bridge.info
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echo "ethnames=\"$ethnames\"" >> /tmp/bridge.info
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return
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fi
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