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path: root/net-scripts/net.modules.d/iproute2
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Diffstat (limited to 'net-scripts/net.modules.d/iproute2')
-rw-r--r--net-scripts/net.modules.d/iproute2156
1 files changed, 98 insertions, 58 deletions
diff --git a/net-scripts/net.modules.d/iproute2 b/net-scripts/net.modules.d/iproute2
index 09fcfa5..2052998 100644
--- a/net-scripts/net.modules.d/iproute2
+++ b/net-scripts/net.modules.d/iproute2
@@ -28,11 +28,11 @@ iproute2_depend() {
# Returns 1 if iproute2 is installed, otherwise 0
iproute2_check_installed() {
local report="${1:-false}" installed="0"
- if [[ ! -x /sbin/ip ]]; then
+ if [[ ! -x /sbin/ip ]] ; then
installed="1"
${report} && eerror "For iproute2 support, emerge sys-apps/iproute2"
fi
- if [[ ! -e /proc/net/netlink ]]; then
+ if [[ ! -e /proc/net/netlink ]] ; then
installed="1"
${report} && eerror "iproute2 requires NetLink enabled in the kernel"
fi
@@ -43,7 +43,7 @@ iproute2_check_installed() {
#
# Returns 1 if the interface exists, otherwise 0
iproute2_exists() {
- local e=$( ip addr show label "$1" ) report="${2:-false}"
+ local e="$( ip addr show label "$1" )" report="${2:-false}"
[[ -n ${e} ]] && return 0
if ${report} ; then
@@ -93,8 +93,7 @@ iproute2_set_flag() {
# Fetch the address retrieved by DHCP. If successful, echoes the
# address on stdout, otherwise echoes nothing.
iproute2_get_address() {
- ip -family inet addr show "$1" \
- | sed -n -e 's/.*inet \([^ ]*\).*/\1/p'
+ ip -family inet addr show "$1" | sed -n -e 's/.*inet \([^ ]*\).*/\1/p'
}
# bool iproute2_is_ethernet(char *interface)
@@ -108,8 +107,8 @@ iproute2_is_ethernet() {
#
# Fetch the mac address assingned to the network card
iproute2_get_mac_address() {
- local mac=$( ip link show "$1" | sed -n -e \
- '/link\// s/^.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )
+ local mac="$( ip link show "$1" | sed -n -e \
+ '/link\// s/^.*\<\(..:..:..:..:..:..\)\>.*/\U\1/p' )"
[[ ${mac} != '00:00:00:00:00:00' \
&& ${mac} != '44:44:44:44:44:44' \
&& ${mac} != 'FF:FF:FF:FF:FF:FF' ]] \
@@ -137,7 +136,7 @@ iproute2_set_name() {
# Outputs a space-separated list on stdout, in reverse order, for
# example "eth0:2 eth0:1"
iproute2_get_aliases_rev() {
- local iface=$( interface_device "$1" )
+ local iface="$( interface_device "$1" )"
ip addr show dev "${iface}" | grep -o "${iface}:[0-9].*" | tac
}
@@ -158,7 +157,7 @@ iproute2_del_addresses() {
#
# Returns config and config_fallback for the given interface
iproute2_get_old_config() {
- local ifvar=$( bash_variable "$1" ) inet6 t
+ local ifvar="$( bash_variable "$1" )" inet6="" t=""
# iproute2-style config vars
t="ipaddr_${ifvar}[@]"
@@ -190,10 +189,10 @@ iproute2_get_old_config() {
#
# Returns 0 (true) when successful, non-zero (false) on failure
iproute2_iface_stop() {
- local label="$1" iface=$( interface_device "$1" )
+ local label="$1" iface="$( interface_device "$1" )"
# Shut down the link if this isn't an alias or vlan
- if [[ ${label} == "${iface}" ]]; then
+ if [[ ${label} == "${iface}" ]] ; then
iproute2_down "${iface}"
return $?
fi
@@ -205,7 +204,7 @@ iproute2_iface_stop() {
# Adds an the specified address to the interface
# returns 0 on success and non-zero on failure
iproute2_add_address() {
- local iface="$1" x
+ local iface="$1" x=""
iproute2_exists "${iface}" true || return 1
@@ -218,7 +217,7 @@ iproute2_add_address() {
for (( x=0; x<n; x++ )); do
case "${config[x]}" in
netmask)
- config[0]="${config[0]}/$( netmask2cidr ${config[x+1]} )"
+ config[0]="${config[0]}/$( netmask2cidr "${config[x+1]}" )"
unset config[x] config[x+1]
;;
mtu)
@@ -231,10 +230,10 @@ iproute2_add_address() {
# Always scope lo addresses as host unless specified otherwise
[[ ${iface} == "lo" && " ${config[@]} " != *" scope "* ]] \
- && config=( "${config[@]}" "scope host" )
+ && config=( "${config[@]}" "scope host" )
# IPv4 specifics
- if [[ ${config[@]} == *.*.*.* ]]; then
+ if [[ ${config[@]} == *.*.*.* ]] ; then
# Work out a broadcast if none supplied
[[ ${config[@]} != *" brd "* && ${config[@]} != *" broadcast "* ]] \
&& config=( "${config[@]}" "brd +" )
@@ -245,7 +244,7 @@ iproute2_add_address() {
# Some kernels like to apply lo with an address when they are brought up
if [[ ${iface} == "lo" \
- && ${config[@]} == "127.0.0.1/8 brd 127.255.255.255 scope host" ]]; then
+ && ${config[@]} == "127.0.0.1/8 brd 127.255.255.255 scope host" ]] ; then
ip addr del dev "${iface}" 127.0.0.1/8 2>/dev/null
fi
@@ -253,18 +252,18 @@ iproute2_add_address() {
local r="$?"
[[ ${r} != "0" ]] && return "${r}"
- local metric ifvar=$( bash_variable "${iface}" )
+ local ifvar="$( bash_variable "${iface}" )"
# Remove the newly added route and replace with our metric
- metric="metric_${ifvar}"
- [[ ${!metric} == "0" || ${RC_AUTO_INTERFACE} != "yes" ]] && return "${r}"
+ local metric="metric_${ifvar}"
+ [[ ${!metric:-0} == "0" ]] && return "${r}"
- local network=$( ip_network "${config[0]}" )
+ local network="$( ip_network "${config[0]}" )"
[[ -z ${network} ]] && return "${r}"
local cidr="${config[0]##*/}"
if ip route del "${network}/${cidr}" metric 0 dev "${iface}" \
2>/dev/null ; then
- ip route add "${network}/${cidr}" metric "${!metric}" dev "${iface}"
+ ip route add "${network}/${cidr}" metric "${!metric:-0}" dev "${iface}"
fi
return "${r}"
@@ -280,10 +279,10 @@ iproute2_pre_start() {
interface_exists "${iface}" || return 0
- local ifvar=$( bash_variable "$1" ) mtu
+ local ifvar="$( bash_variable "$1" )"
# MTU support
- mtu="mtu_${ifvar}"
+ local mtu="mtu_${ifvar}"
[[ -n ${!mtu} ]] && ip link set mtu "${!mtu}" dev "${iface}"
return 0
@@ -294,7 +293,7 @@ iproute2_pre_start() {
# Runs any post_start stuff on our interface and adds routes
# Always returns 0
iproute2_post_start() {
- local iface="$1" ifvar=$( bash_variable "$1" ) routes metric mtu x netmask
+ local iface="$1" ifvar="$( bash_variable "$1" )" x=""
iproute2_exists "${iface}" || return 0
@@ -302,50 +301,73 @@ iproute2_post_start() {
iproute2_up "${iface}"
# MTU support
- mtu="mtu_${ifvar}"
+ local mtu="mtu_${ifvar}"
[[ -n ${!mtu} ]] && ip link set mtu "${!mtu}" dev "${iface}"
- x="routes_${ifvar}[@]"
- routes=( "${!x}" )
- metric="metric_${ifvar}"
+ local x="routes_${ifvar}[@]"
+ local -a routes=( "${!x}" )
+ local metric="metric_${ifvar}"
# Test for old style ipaddr variable
- if [[ -z ${routes} ]]; then
+ if [[ -z ${routes} ]] ; then
t="iproute_${ifvar}[@]"
routes=( "${!t}" )
fi
- [[ -z ${routes} ]] && return 0
-
# Set routes with ip route -- this might also include default route
- einfo "Adding routes"
- eindent
- for x in "${routes[@]}"; do
- ebegin "${x}"
-
- # Support net-tools routing too
- x="${x//gw/via}"
- x="${x//-A inet6/}"
- x="${x//-net/}"
- [[ " ${x} " == *" -host "* ]] && x="${x//-host/} scope host"
-
- # Attempt to support net-tools route netmask option
- netmask="${x##* netmask }"
- if [[ -n ${netmask} && ${x} != "${netmask}" ]]; then
- netmask="${netmask%% *}"
- x="${x// netmask ${netmask} / }"
- local -a a=( ${x} )
- a[0]="${a[0]}/$( netmask2cidr ${netmask} )"
- x="${a[@]}"
- fi
+ if [[ -n ${routes} ]] ; then
+ einfo "Adding routes"
+ eindent
+ for x in "${routes[@]}"; do
+ ebegin "${x}"
+
+ # Support net-tools routing too
+ x="${x//gw/via}"
+ x="${x//-A inet6/}"
+ x="${x//-net/}"
+ [[ " ${x} " == *" -host "* ]] && x="${x//-host/} scope host"
+
+ # Attempt to support net-tools route netmask option
+ netmask="${x##* netmask }"
+ if [[ -n ${netmask} && ${x} != "${netmask}" ]] ; then
+ netmask="${netmask%% *}"
+ x="${x// netmask ${netmask} / }"
+ local -a a=( ${x} )
+ a[0]="${a[0]}/$( netmask2cidr "${netmask}")"
+ x="${a[@]}"
+ fi
+
+ # Add a metric if we don't have one
+ [[ " ${x} " != *" metric "* ]] && x="${x} metric ${!metric}"
+
+ ip route append ${x} dev "${iface}"
+ eend $?
+ done
+ eoutdent
+ fi
- # Add a metric if we don't have one
- [[ " ${x} " != *" metric "* ]] && x="${x} metric ${!metric}"
+ # Now apply any rules we may want
+ x="rules_${ifvar}[@]"
+ local -a rules=( "${!x}" )
+ if [[ -n ${rules} ]] ; then
+ einfo "Adding IP policy routing rules"
+ eindent
+ # Ensure that the kernel supports policy routing
+ if ! ip rule list | grep -q "^" ; then
+ eerror "You need to enable IP Policy Routing (CONFIG_IP_MULTIPLE_TABLES)"
+ eerror "in your kernel to use ip rules"
+ else
+ for x in "${rules[@]}" ; do
+ ebegin "${x}"
+ ip rule add ${x} dev "${iface}"
+ eend $?
+ done
+ fi
+ eoutdent
+ fi
- ip route append ${x} dev "${iface}"
- eend $?
- done
- eoutdent
+ # Flush the route cache
+ ip route flush cache dev "${iface}"
return 0
}
@@ -354,7 +376,7 @@ iproute2_post_start() {
#
# Change all routes for an interface to a given metric
iproute2_route_metric() {
- local route
+ local route=""
ip route | grep " dev $1" | {
while read route ; do
ip route del ${route}
@@ -374,4 +396,22 @@ iproute2_default_route() {
|| ip route append default via "$2" metric "${metric}" dev "$1" 2>/dev/null
}
+# void iproute2_post_stop(char* interface)
+iproute2_post_stop() {
+ local iface="$1" rule=""
+
+ iproute2_exists "${iface}" || return
+
+ # Remove any rules for this interface
+ ip rule list | grep " iif ${iface}[ ]*" | {
+ while read rule ; do
+ rule="${rule#*:}"
+ ip rule del ${rule}
+ done
+ }
+
+ # Flush the route cache
+ ip route flush cache dev "${iface}"
+}
+
# vim:ts=4