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# Copyright 2004-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
ifconfig_depend() {
program /sbin/ifconfig
provide interface
}
_up() {
ifconfig "${IFACE}" up
}
_down() {
ifconfig "${IFACE}" down
}
_exists() {
grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/dev
}
_ifindex() {
local line= i=-2
while read line ; do
i=$((${i} + 1))
[ ${i} -lt 1 ] && continue
case "${line}" in
"${IFACE}:"*) echo "${i}"; return 0;;
esac
done < /proc/net/dev
return 1
}
_is_wireless() {
# Support new sysfs layout
[ -d /sys/class/net/"${IFACE}"/wireless ] && return 0
[ ! -e /proc/net/wireless ] && return 1
grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/wireless
}
_get_mac_address() {
local mac=$(LC_ALL=C ifconfig "${IFACE}" | \
sed -n -e 's/.* HWaddr \(..:..:..:..:..:..\).*/\1/p')
case "${mac}" in
00:00:00:00:00:00) ;;
44:44:44:44:44:44) ;;
FF:FF:FF:FF:FF:FF) ;;
"") ;;
*) echo "${mac}"; return 0 ;;
esac
return 1
}
_set_mac_address() {
ifconfig "${IFACE}" hw ether "$1"
}
_get_inet_address() {
set -- $(LC_ALL=C ifconfig "${IFACE}" |
sed -n -e 's/.*inet addr:\([^ ]*\).*Mask:\([^ ]*\).*/\1 \2/p')
[ -z "$1" ] && return 1
echo -n "$1"
shift
echo "/$(_netmask2cidr "$1")"
}
_get_inet_addresses() {
local iface=${IFACE} i=0
local addrs="$(_get_inet_address)"
while true ; do
local IFACE="${iface}:${i}"
_exists || break
local addr="$(_get_inet_address)"
[ -n "${addr}" ] && addrs="${addrs}${addrs:+ }${addr}"
i=$((${i} + 1))
done
echo "${addrs}"
}
_cidr2netmask() {
local cidr="$1" netmask="" done=0 i=0 sum=0 cur=128
local octets= frac=
local octets=$((${cidr} / 8))
local frac=$((${cidr} % 8))
while [ ${octets} -gt 0 ] ; do
netmask="${netmask}.255"
octets=$((${octets} - 1))
done=$((${done} + 1))
done
if [ ${done} -lt 4 ] ; then
while [ ${i} -lt ${frac} ] ; do
sum=$((${sum} + ${cur}))
cur=$((${cur} / 2))
i=$((i + 1))
done
netmask="${netmask}.${sum}"
done=$((${done} + 1))
while [ ${done} -lt 4 ] ; do
netmask="${netmask}.0"
done=$((${done} + 1))
done
fi
echo "${netmask#.*}"
}
_add_address() {
if [ "$1" = "127.0.0.1/8" -a "${IFACE}" = "lo" ] ; then
ifconfig "${IFACE}" "$@" 2>/dev/null
return 0
fi
case "$1" in
*:*) ifconfig "${IFACE}" inet6 add "$@"; return $?;;
esac
# IPv4 is tricky - ifconfig requires an aliased device
# for multiple addresses
local iface="${IFACE}"
if LC_ALL=C ifconfig "${iface}" | grep -Eq "\<inet addr:.*" ; then
# Get the last alias made for the interface and add 1 to it
i=$(ifconfig | sed '1!G;h;$!d' | grep -m 1 -o "^${iface}:[0-9]*" \
| sed -n -e 's/'"${iface}"'://p')
i=$((${i:-0} + 1))
iface="${iface}:${i}"
fi
# ifconfig doesn't like CIDR addresses
local ip="${1%%/*}" cidr="${1##*/}" netmask=
if [ -n "${cidr}" -a "${cidr}" != "${ip}" ]; then
netmask="$(_cidr2netmask "${cidr}")"
shift
set -- "${ip}" netmask "${netmask}" "$@"
fi
# # Support iproute2 style config where possible
# r="${config[@]}"
# config=( ${r//brd +/} )
# config=( "${config[@]//brd/broadcast}" )
# config=( "${config[@]//peer/pointopoint}" )
# fi
ifconfig "${iface}" "$@"
}
_add_route() {
if [ $# -eq 3 ] ; then
set -- "$1" "$2" gw "$3"
elif [ "$3" = "via" ] ; then
local one=$1 two=$2
shift ; shift; shift
set -- "${one}" "${two}" gw "$@"
fi
if [ -n "${metric}" ] ; then
set -- "$@" metric ${metric}
fi
route add "$@"
}
_delete_addresses() {
# We don't remove addresses from aliases
case "${IFACE}" in
*:*) return 0 ;;
esac
einfo "Removing addresses"
eindent
# iproute2 can add many addresses to an iface unlike ifconfig ...
# iproute2 added addresses cause problems for ifconfig
# as we delete an address, a new one appears, so we have to
# keep polling
while true ; do
local addr=$(LC_ALL=C ifconfig "${IFACE}" |
sed -n -e 's/.*inet addr:\([^ ]*\).*/\1/p')
[ -z "${addr}" ] && break
if [ "${addr}" = "127.0.0.1/8" ] ; then
# Don't delete the loopback address
[ "${IFACE}" = "lo" -o "${IFACE}" = "lo0" ] && break
fi
ifconfig "${IFACE}" 0.0.0.0 || break
done
# Remove IPv6 addresses
local addr=
for addr in $(LC_ALL=C ifconfig "${IFACE}" | \
sed -n -e 's/^.*inet6 addr: \([^ ]*\) Scope:[^L].*/\1/p') ; do
[ "${addr}" = "::1/128" -a "${IFACE}" = "lo" ] && continue
einfo "${addr}"
ifconfig "${IFACE}" inet6 del "${addr}"
done
return 0
}
_has_carrier() {
return 0
}
_tunnel() {
iptunnel "$@"
}
ifconfig_pre_start() {
# MTU support
local mtu=
eval mtu=\$mtu_${IFVAR}
[ -n "${mtu}" ] && ifconfig "${IFACE}" mtu "${mtu}"
local tunnel=
eval tunnel=\$iptunnel_${IFVAR}
[ -z "${tunnel}" ] && return 0
# Set our base metric to 1000
metric=1000
ebegin "Creating tunnel ${IFVAR}"
iptunnel add "${tunnel}"
eend $?
}
ifconfig_post_stop() {
# Don't delete sit0 as it's a special tunnel
[ "${IFACE}" = "sit0" ] && return 0
[ -z "$(iptunnel show "${IFACE}" 2>/dev/null)" ] && return 0
ebegin "Destroying tunnel ${IFACE}"
iptunnel del "${IFACE}"
eend $?
}
# vim: set ts=4 :
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