diff options
Diffstat (limited to 'etc/network.subr')
| -rw-r--r-- | etc/network.subr | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/etc/network.subr b/etc/network.subr index d5a1703..5eccd53 100644 --- a/etc/network.subr +++ b/etc/network.subr @@ -198,6 +198,64 @@ wpaif() return 1 } +# ipv4_up if +# add IPv4 addresses to the interface $if +ipv4_up() +{ + _if=$1 + ifalias_up ${_if} + ipv4_addrs_common ${_if} alias +} + +# ipv4_down if +# remove IPv4 addresses from the interface $if +ipv4_down() +{ + _if=$1 + ifalias_down ${_if} + ipv4_addrs_common ${_if} -alias +} + +# ipv4_addrs_common if action +# Evaluate the ifconfig_if_ipv4 arguments for interface $if +# and use $action to add or remove IPv4 addresses from $if. +ipv4_addrs_common() +{ + _ret=1 + _if=$1 + _action=$2 + + # get ipv4-addresses + eval cidr_addr=\${ipv4_addrs_${_if}} + + for _cidr in ${cidr_addr}; do + _ipaddr=${_cidr%%/*} + _netmask="/"${_cidr##*/} + _range=${_ipaddr##*.} + _ipnet=${_ipaddr%.*} + _iplow=${_range%-*} + _iphigh=${_range#*-} + + # clear netmask when removing aliases + if [ "${_action}" = "-alias" ]; then + _netmask="" + fi + + _ipcount=${_iplow} + while [ "${_ipcount}" -le "${_iphigh}" ]; do + eval "ifconfig ${_if} ${_action} ${_ipnet}.${_ipcount}${_netmask}" + _ipcount=$((${_ipcount}+1)) + _ret=0 + + # only the first ipaddr in a subnet need the real netmask + if [ "${_action}" != "-alias" ]; then + _netmask="/32" + fi + done + done + return $_ret +} + # ifalias_up if # Configure aliases for network interface $if. # It returns 0 if at least one alias was configured or |
