alias debug=${DEBUG:-:}
# allow env to override nvram
-nvram_get () {
- eval "echo \${$1:-\$(nvram get $1)}"
+nvram () {
+ case $1 in
+ get) eval "echo \${NVRAM_$2:-\$(command nvram get $2)}";;
+ *) command nvram $*;;
+ esac
}
. /etc/nvram.overrides
# valid interface?
-if_valid () (
- [ "${1%%[0-9]}" = "vlan" ] && {
- i=${1#vlan}
- hwname=$(nvram_get vlan${i}hwname)
- hwaddr=$(nvram_get ${hwname}macaddr)
- [ -z "$hwaddr" ] && return 1
+if_valid () {
+ ifconfig "$1" >&- 2>&- ||
+ [ "${1%%[0-9]}" = "br" ] ||
+ {
+ [ "${1%%[0-9]}" = "vlan" ] && (
+ i=${1#vlan}
+ hwname=$(nvram get vlan${i}hwname)
+ hwaddr=$(nvram get ${hwname}macaddr)
+ [ -z "$hwaddr" ] && return 1
- vif=$(ifconfig -a | awk '/^eth.*'$hwaddr'/ {print $1; exit}' IGNORECASE=1)
- debug "# vlan$i: $hwname $hwaddr => $vif"
+ vif=$(ifconfig -a | awk '/^eth.*'$hwaddr'/ {print $1; exit}' IGNORECASE=1)
+ debug "# vlan$i => $vif"
- $DEBUG ifconfig $vif up
- $DEBUG vconfig add $vif $i 2>/dev/null
- }
- ifconfig "$1" >/dev/null 2>&1 || [ "${1%%[0-9]}" = "br" ]
-)
+ $DEBUG ifconfig $vif up
+ $DEBUG vconfig add $vif $i 2>&-
+ )
+ } ||
+ { echo -e "# $1 ignored: can't find/create"; false; }
+}