@ -93,93 +93,143 @@ announce_prefix() {
}
disable_downstream ( ) {
disable_router ( ) {
local network = " $1 "
# Notify the address distribution daemon
ubus call 6distributed deliface '{"network": "' " $network " '"}'
# Disable advertisement daemon
stop_service /usr/sbin/6relayd " /var/run/ipv6-downstream - $network .pid "
stop_service /usr/sbin/6relayd " /var/run/ipv6-router - $network .pid "
}
restart_relay_add( ) {
restart_relay_slave( ) {
local __section = " $1 "
local __master = " $2 "
network_is_up " $__section " || return
local __device = ""
network_get_device __device " $__section "
local __cmaster = ""
config_get __cmaster " $__section " relay_master
[ " $__master " = = " $__cmaster " ] && {
disable_interface " $__section "
enable_interface " $__section " " $__device "
}
}
add_relay_slave( ) {
local __section = " $1 "
local __return = " $2 "
local __master = " $3 "
local __disable = " $4 "
local __mo de = " $4 "
network_is_up " $__section " || return
# Get device
local __device = ""
network_get_device __device " $__section "
# Match master network
local __cmaster = ""
config_get __cmaster " $__section " relay_master
[ " $__master " != " $__cmaster " ] && return
[ " $__master " = = " $__cmaster " ] || return
# Disable any active distribution
disable_downstream " $__section "
# Test slave mode
local __cmode = ""
config_get __cmode " $__section " mode
[ " $__cmode " = = "downstream" ] && __cmode = "router"
local __device = ""
network_get_device __device " $__section "
# Coming from stop relay, reenable distribution
[ " $__disabl e " = = "disable" ] && {
enable_downstream " $__section " " $__device "
retur n
}
# Don't start fallback interfaces if we are in forced-relay mode
[ " $__cmode " = = "relay" -o " $__mode " = = "fallback" ] || return
# Don't make non-relay or non-router interfaces slaves
[ " $__cmo de " = = "relay" -o " $__cmode " = = "router" ] || return
# Disable any active distributio n
[ " $__cmode " = = "router" ] && disable_router " $__section "
eval " $__return " '="$' " $__return " ' ' " $__device " '"'
}
stop_relay( ) {
local network = " $1 "
local pid = " /var/run/ipv6-relay- $network .pid "
local was_running = ""
local pid_fallback = " /var/run/ipv6-relay-fallback- $network .pid "
local pid_forced = " /var/run/ipv6-relay-forced- $network .pid "
local was_fallback = ""
stop_service /usr/sbin/6relayd " $pid " was_running
stop_service /usr/sbin/6relayd " $pid_fallback " was_fallback
stop_service /usr/sbin/6relayd " $pid_forced "
# Reenable normal distribution on slave interfaces
[ -n " $was_running " ] && config_foreach restart_relay_add interface dummy " $network " disable
[ -n " $was_fallback " ] && config_foreach restart_relay_slave interface " $network "
}
detect_forced_relay_mode( ) {
local __section = " $1 "
local __mode = " $2 "
local __cmode
config_get __cmode " $__section " mode
[ " $__cmode " = = "relay" ] && eval " $__mode =forced "
}
restart_relay( ) {
local network = " $1 "
local force = " $2 "
local pid = " /var/run/ipv6-relay- $network .pid "
local mode = " $2 "
local not_running = 0
[ -f " $pid " ] || not_running = 1
# Stop last active relay
stop_relay " $network "
# Don't start if not desired
[ " $force " != "1" ] && [ " $not_running " = = "1" ] && return
# Detect if we have a forced-relay
[ -z " $mode " ] && config_foreach detect_forced_relay_mode interface mode
# Kill current relay and distribution daemon
stop_relay " $network "
# Don't start without a mode
[ -z " $mode " ] && return
# Detect master device
local device = ""
network_get_device device $network
network_get_device device " $network "
# Generate command string
local cmd = " /usr/sbin/6relayd -A $device "
config_foreach restart_relay_add interface cmd " $network "
local cmd = " /usr/sbin/6relayd -A $device "
local ifaces = ""
config_foreach add_relay_slave interface ifaces " $network " " $mode "
# Start relay
start_service " $cmd " " $pid "
local pid = " /var/run/ipv6-relay- $mode - $network .pid "
[ -n " $ifaces " ] && start_service " $cmd $ifaces " " $pid "
# There are no slave interface, however indicate that we want to relay
[ -z " $ifaces " ] && touch " $pid "
}
restart_master_relay( ) {
local network = " $1 "
local mode = " $2 "
local pid_fallback = " /var/run/ipv6-relay-fallback- $network .pid "
local pid_forced = " /var/run/ipv6-relay-forced- $network .pid "
# Disable active relaying to this interface
local relay_master
config_get relay_master " $network " relay_master
[ -n " $relay_master " ] && restart_relay " $relay_master "
[ -z " $relay_master " ] && return
network_is_up " $relay_master " || return
# Detect running mode
[ -z " $mode " && -f " $pid_fallback " ] && mode = "fallback"
[ -z " $mode " && -f " $pid_forced " ] && mode = "forced"
# Restart relay if running or start requested
[ -n " $mode " ] && restart_relay " $relay_master " " $mode "
}
@ -193,13 +243,13 @@ disable_interface() {
restart_master_relay " $network "
# Disable distribution
disable_downstream " $network "
disable_router " $network "
# Disable relay
stop_relay " $network "
# Disable DHCPv6 client if enabled, state script will take care
stop_service /usr/sbin/odhcp6c " /var/run/ipv6-upstream - $network .pid "
stop_service /usr/sbin/odhcp6c " /var/run/ipv6-dhcpv6 - $network .pid "
}
@ -245,10 +295,13 @@ enable_static() {
# Announce all static prefixes
config_list_foreach " $network " static_prefix announce_prefix $network
# start relay if there are forced relay members
restart_relay " $network "
}
enable_downstream ( ) {
enable_router ( ) {
local network = " $1 "
local device = " $2 "
@ -259,7 +312,7 @@ enable_downstream() {
[ " $length " -ne "0" ] && ubus call 6distributed newiface '{"network": "' " $network " '", "iface": "' " $device " '", "length": ' " $length " '}'
# Start RD & DHCPv6 service
local pid = " /var/run/ipv6-downstream - $network .pid "
local pid = " /var/run/ipv6-router - $network .pid "
start_service " /usr/sbin/6relayd -Rserver -Dserver . $device " " $pid "
# Try relaying if necessary
@ -267,7 +320,7 @@ enable_downstream() {
}
enable_upstream ( ) {
enable_dhcpv6 ( ) {
local network = " $1 "
local device = " $2 "
@ -292,13 +345,30 @@ enable_upstream() {
}
# Start DHCPv6 client
local pid = " /var/run/ipv6-upstream - $network .pid "
local pid = " /var/run/ipv6-dhcpv6 - $network .pid "
start_service " /usr/sbin/odhcp6c -s/lib/ipv6/dhcpv6.sh $dhcp6_opts " " $pid "
# Refresh RA on all interfaces
for pid in /var/run/ipv6-downstream -*.pid; do
for pid in /var/run/ipv6-router -*.pid; do
kill -SIGUSR1 $( cat " $pid " )
done
}
enable_interface( )
{
local network = " $1 "
local device = " $2 "
local mode = ""
config_get mode " $network " mode
# Compatibility with old mode names
[ " $mode " = = "downstream" ] && mode = router
[ " $mode " = = "upstream" ] && mode = dhcpv6
# Run mode startup code
[ " $mode " = = "dhcpv6" -o " $mode " = = "static" ] && enable_static " $network " " $device "
[ " $mode " = = "dhcpv6" ] && enable_dhcpv6 " $network " " $device "
[ " $mode " = = "router" ] && enable_router " $network " " $device "
[ " $mode " = = "relay" ] && restart_master_relay " $network " forced
}
Steven Barth
12 years ago