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network/ifname-genrules.sh: check for multiple ifname= lines

master
Harald Hoyer 2012-07-06 12:57:17 +02:00
parent 528864e460
commit f1e7add2bf
1 changed files with 18 additions and 2 deletions
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20
modules.d/40network/ifname-genrules.sh
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@ -12,7 +12,23 @@ command -v parse_ifname_opts >/dev/null || . /lib/net-lib.sh
{
for p in $(getargs ifname=); do
parse_ifname_opts $p
printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="%s", ATTR{type}=="1", NAME="%s"\n' "$ifname_mac" "$ifname_if"
done

if [ -f /tmp/ifname-$ifname_mac ]; then
read oldif < /tmp/ifname-$ifname_mac
fi
if [ -f /tmp/ifname-$ifname_if ]; then
read oldmac < /tmp/ifname-$ifname_if
fi
if [ -n "$oldif" -a -n "$oldmac" -a "$oldif" = "$ifname_if" -a "$oldmac" = "$ifname_mac" ]; then
# skip same ifname= declaration
continue
fi

[ -n "$oldif" ] && warn "Multiple interface names specified for MAC $ifname_mac: $oldif"
[ -n "$oldmac" ] && warn "Multiple MAC specified for $ifname_if: $oldmac"

printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="%s", ATTR{type}=="1", NAME="%s"\n' "$ifname_mac" "$ifname_if"
echo $ifname_if > /tmp/ifname-$ifname_mac
echo $ifname_mac > /tmp/ifname-$ifname_if
done
} >> /etc/udev/rules.d/80-ifname.rules