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-rw-r--r--net/iproute2.sh404
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diff --git a/net/iproute2.sh b/net/iproute2.sh
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-# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
-# Released under the 2-clause BSD license.
-
-iproute2_depend()
-{
- program ip
- provide interface
- after ifconfig
-}
-
-_up()
-{
- ip link set dev "${IFACE}" up
-}
-
-_down()
-{
- ip link set dev "${IFACE}" down
-}
-
-_exists()
-{
- [ -e /sys/class/net/"$IFACE" ]
-}
-
-_ifindex()
-{
- local index=-1
- local f v
- if [ -e /sys/class/net/"${IFACE}"/ifindex ]; then
- index=$(cat /sys/class/net/"${IFACE}"/ifindex)
- else
- for f in /sys/class/net/*/ifindex ; do
- v=$(cat $f)
- [ $v -gt $index ] && index=$v
- done
- : $(( index += 1 ))
- fi
- echo "${index}"
- return 0
-}
-
-_is_wireless()
-{
- # Support new sysfs layout
- [ -d /sys/class/net/"${IFACE}"/wireless -o \
- -d /sys/class/net/"${IFACE}"/phy80211 ] && return 0
-
- [ ! -e /proc/net/wireless ] && return 1
- grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/wireless
-}
-
-_set_flag()
-{
- local flag=$1 opt="on"
- if [ "${flag#-}" != "${flag}" ]; then
- flag=${flag#-}
- opt="off"
- fi
- ip link set dev "${IFACE}" "${flag}" "${opt}"
-}
-
-_get_mac_address()
-{
- local mac=$(LC_ALL=C ip link show "${IFACE}" | sed -n \
- -e 'y/abcdef/ABCDEF/' \
- -e '/link\// s/^.*\<\(..:..:..:..:..:..\)\>.*/\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()
-{
- ip link set dev "${IFACE}" address "$1"
-}
-
-_get_inet_addresses()
-{
- LC_ALL=C ip -family inet addr show "${IFACE}" | \
- sed -n -e 's/.*inet \([^ ]*\).*/\1/p'
-}
-
-_get_inet_address()
-{
- set -- $(_get_inet_addresses)
- [ $# = "0" ] && return 1
- echo "$1"
-}
-
-_add_address()
-{
- if [ "$1" = "127.0.0.1/8" -a "${IFACE}" = "lo" ]; then
- ip addr add "$@" dev "${IFACE}" 2>/dev/null
- return 0
- fi
- local x
- local address netmask broadcast peer anycast label scope
- local valid_lft preferred_lft home nodad
- local confflaglist
- address="$1" ; shift
- while [ -n "$*" ]; do
- x=$1 ; shift
- case "$x" in
- netmask|ne*)
- netmask="/$(_netmask2cidr "$1")" ; shift ;;
- broadcast|brd|br*)
- broadcast="$1" ; shift ;;
- pointopoint|pointtopoint|peer|po*|pe*)
- peer="$1" ; shift ;;
- anycast|label|scope|valid_lft|preferred_lft|a*|l*|s*|v*|pr*)
- case $x in
- a*) x=anycast ;;
- l*) x=label ;;
- s*) x=scope ;;
- v*) x=valid_lft ;;
- pr*) x=preferred_lft ;;
- esac
- eval "$x=$1" ; shift ;;
- home|nodad|h*|no*)
- case $x in h*) x=home ;; n*) x=nodad ;; esac
- # FIXME: If we need to reorder these, this will take more code
- confflaglist="${confflaglist} $x" ; ;;
- *)
- ewarn "Unknown argument to config_$IFACE: $x"
- esac
- done
-
- # Always scope lo addresses as host unless specified otherwise
- if [ "${IFACE}" = "lo" ]; then
- [ -z "$scope" ] && scope="host"
- fi
-
- # figure out the broadcast address if it is not specified
- # This must NOT be set for IPv6 addresses
- if [ "${address#*:}" = "${address}" ]; then
- [ -z "$broadcast" ] && broadcast="+"
- elif [ -n "$broadcast" ]; then
- eerror "Broadcast keywords are not valid with IPv6 addresses"
- return 1
- fi
-
- # This must appear on a single line, continuations cannot be used
- set -- "${address}${netmask}" ${peer:+peer} ${peer} ${broadcast:+broadcast} ${broadcast} ${anycast:+anycast} ${anycast} ${label:+label} ${label} ${scope:+scope} ${scope} dev "${IFACE}" ${valid_lft:+valid_lft} $valid_lft ${preferred_lft:+preferred_lft} $preferred_lft $confflaglist
- veinfo ip addr add "$@"
- ip addr add "$@"
-}
-
-_add_route()
-{
- local family=
-
- if [ "$1" = "-A" -o "$1" = "-f" -o "$1" = "-family" ]; then
- family="-f $2"
- shift; shift
- elif [ "$1" = "-4" ]; then
- family="-f inet"
- shift
- elif [ "$1" = "-6" ]; then
- family="-f inet6"
- shift
- fi
-
- if [ $# -eq 3 ]; then
- set -- "$1" "$2" via "$3"
- elif [ "$3" = "gw" ]; then
- local one=$1 two=$2
- shift; shift; shift
- set -- "${one}" "${two}" via "$@"
- fi
-
- local cmd= have_metric=false
- while [ -n "$1" ]; do
- case "$1" in
- metric) cmd="${cmd} $1"; have_metric=true;;
- netmask) cmd="${cmd}/$(_netmask2cidr "$2")"; shift;;
- -host|-net);;
- *) cmd="${cmd} $1";;
- esac
- shift
- done
-
- # We cannot use a metric if we're using a nexthop
- if ! ${have_metric} && \
- [ -n "${metric}" -a \
- "${cmd##* nexthop }" = "$cmd" ]
- then
- cmd="${cmd} metric ${metric}"
- fi
-
- veinfo ip ${family} route append ${cmd} dev "${IFACE}"
- ip ${family} route append ${cmd} dev "${IFACE}"
- eend $?
-}
-
-_delete_addresses()
-{
- ip addr flush dev "${IFACE}" scope global 2>/dev/null
- ip addr flush dev "${IFACE}" scope site 2>/dev/null
- if [ "${IFACE}" != "lo" ]; then
- ip addr flush dev "${IFACE}" scope host 2>/dev/null
- fi
- return 0
-}
-
-_has_carrier()
-{
- LC_ALL=C ip link show dev "${IFACE}" | grep -q "LOWER_UP"
-}
-
-_tunnel()
-{
- ip tunnel "$@"
-}
-
-# This is just to trim whitespace, do not add any quoting!
-_trim() {
- echo $*
-}
-
-# This is our interface to Routing Policy Database RPDB
-# This allows for advanced routing tricks
-_ip_rule_runner() {
- local cmd rules OIFS="${IFS}" family
- if [ "$1" = "-4" -o "$1" = "-6" ]; then
- family="$1"
- shift
- else
- family="-4"
- fi
- cmd="$1"
- rules="$2"
- veindent
- local IFS="$__IFS"
- for ru in $rules ; do
- unset IFS
- ruN="$(_trim "${ru}")"
- [ -z "${ruN}" ] && continue
- vebegin "${cmd} ${ruN}"
- ip $family rule ${cmd} ${ru}
- veend $?
- local IFS="$__IFS"
- done
- IFS="${OIFS}"
- veoutdent
-}
-
-iproute2_pre_start()
-{
- local tunnel=
- eval tunnel=\$iptunnel_${IFVAR}
- if [ -n "${tunnel}" ]; then
- # Set our base metric to 1000
- metric=1000
- # Bug#347657: If the mode is 'ipip6' or 'ip6ip6', the -6 must be passed
- # to iproute2 during tunnel creation.
- local ipproto=''
- [ "${tunnel##mode ipip6}" != "${tunnel}" ] && ipproto='-6'
- [ "${tunnel##mode ip6ip6}" != "${tunnel}" ] && ipproto='-6'
-
- ebegin "Creating tunnel ${IFVAR}"
- ip ${ipproto} tunnel add ${tunnel} name "${IFACE}"
- eend $? || return 1
- _up
- fi
-
- # MTU support
- local mtu=
- eval mtu=\$mtu_${IFVAR}
- [ -n "${mtu}" ] && ip link set dev "${IFACE}" mtu "${mtu}"
-
- # TX Queue Length support
- local len=
- eval len=\$txqueuelen_${IFVAR}
- [ -n "${len}" ] && ip link set dev "${IFACE}" txqueuelen "${len}"
-
- return 0
-}
-
-_iproute2_ipv6_tentative()
-{
- # Only check tentative when we have a carrier.
- _has_carrier || return 1
- LC_ALL=C ip addr show dev "${IFACE}" | \
- grep -q "^[[:space:]]*inet6 .* tentative"
-}
-
-iproute2_post_start()
-{
- local n=5
-
- # Kernel may not have IP built in
- if [ -e /proc/net/route ]; then
- local rules="$(_get_array "rules_${IFVAR}")"
- if [ -n "${rules}" ]; then
- if ! ip -4 rule list | grep -q "^"; then
- eerror "IP Policy Routing (CONFIG_IP_MULTIPLE_TABLES) needed for ip rule"
- else
- service_set_value "ip_rule" "${rules}"
- einfo "Adding IPv4 RPDB rules"
- _ip_rule_runner -4 add "${rules}"
- fi
- fi
- ip -4 route flush table cache dev "${IFACE}"
- fi
-
- # Kernel may not have IPv6 built in
- if [ -e /proc/net/ipv6_route ]; then
- local rules="$(_get_array "rules6_${IFVAR}")"
- if [ -n "${rules}" ]; then
- if ! ip -6 rule list | grep -q "^"; then
- eerror "IPv6 Policy Routing (CONFIG_IPV6_MULTIPLE_TABLES) needed for ip rule"
- else
- service_set_value "ip6_rule" "${rules}"
- einfo "Adding IPv6 RPDB rules"
- _ip_rule_runner -6 add "${rules}"
- fi
- fi
- ip -6 route flush table cache dev "${IFACE}"
- fi
-
- if _iproute2_ipv6_tentative; then
- ebegin "Waiting for IPv6 addresses"
- while [ $n -ge 0 ]; do
- _iproute2_ipv6_tentative || break
- sleep 1
- : $(( n -= 1 ))
- done
- [ $n -ge 0 ]
- eend $?
- fi
-
- return 0
-}
-
-iproute2_post_stop()
-{
- # Kernel may not have IP built in
- if [ -e /proc/net/route ]; then
- local rules="$(service_get_value "ip_rule")"
- if [ -n "${rules}" ]; then
- einfo "Removing IPv4 RPDB rules"
- _ip_rule_runner -4 del "${rules}"
- fi
-
- # Only do something if the interface actually exist
- if _exists; then
- ip -4 route flush table cache dev "${IFACE}"
- fi
- fi
-
- # Kernel may not have IPv6 built in
- if [ -e /proc/net/ipv6_route ]; then
- local rules="$(service_get_value "ip6_rule")"
- if [ -n "${rules}" ]; then
- einfo "Removing IPv6 RPDB rules"
- _ip_rule_runner -6 del "${rules}"
- fi
-
- # Only do something if the interface actually exist
- if _exists; then
- ip -6 route flush table cache dev "${IFACE}"
- fi
- fi
-
- # Don't delete sit0 as it's a special tunnel
- if [ "${IFACE}" != "sit0" ]; then
- if [ -n "$(ip tunnel show "${IFACE}" 2>/dev/null)" ]; then
- ebegin "Destroying tunnel ${IFACE}"
- ip tunnel del "${IFACE}"
- eend $?
- fi
- fi
-}
-
-# Is the interface administratively/operationally up?
-# The 'UP' status in ifconfig/iproute2 is the administrative status
-# Operational state is available in iproute2 output as 'state UP', or the
-# operstate sysfs variable.
-# 0: up
-# 1: down
-# 2: invalid arguments
-is_admin_up()
-{
- local iface="$1"
- [ -z "$iface" ] && iface="$IFACE"
- ip link show dev $iface | \
- sed -n '1,1{ /[<,]UP[,>]/{ q 0 }}; q 1; '
-}
-
-is_oper_up()
-{
- local iface="$1"
- [ -z "$iface" ] && iface="$IFACE"
- read state </sys/class/net/"${iface}"/operstate
- [ "x$state" = "up" ]
-}