mirror of https://github.com/hak5/openwrt.git
94 lines
2.1 KiB
Bash
94 lines
2.1 KiB
Bash
|
# relay.sh - Abstract relayd protocol backend
|
||
|
|
# Copyright (c) 2011 OpenWrt.org
|
||
|
|
|
||
|
|
# Hook into scan_interfaces() to synthesize a .device option
|
||
|
|
# This is needed for /sbin/ifup to properly dispatch control
|
||
|
|
# to setup_interface_relay() even if no .ifname is set in
|
||
|
|
# the configuration.
|
||
|
|
scan_relay() {
|
||
|
|
config_set "$1" device "relay-$1"
|
||
|
|
}
|
||
|
|
|
||
|
|
# No coldplugging needed, relayd will be restarted if one of
|
||
|
|
# the member interfaces goes up or down
|
||
|
|
#coldplug_interface_relay() {
|
||
|
|
# setup_interface_relay "relay-$1" "$1"
|
||
|
|
#}
|
||
|
|
|
||
|
|
setup_interface_relay() {
|
||
|
|
local iface="$1"
|
||
|
|
local cfg="$2"
|
||
|
|
local link="relay-$cfg"
|
||
|
|
|
||
|
|
local args=""
|
||
|
|
local ifaces=""
|
||
|
|
|
||
|
|
resolve_ifname() {
|
||
|
|
grep -qs "^ *$1:" /proc/net/dev && {
|
||
|
|
append args "-I $1"
|
||
|
|
append ifaces "$1"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
resolve_network() {
|
||
|
|
local ifn
|
||
|
|
config_get ifn "$1" ifname
|
||
|
|
resolve_ifname "$ifn"
|
||
|
|
}
|
||
|
|
|
||
|
|
local net networks
|
||
|
|
config_get networks "$cfg" network
|
||
|
|
for net in $networks; do
|
||
|
|
resolve_network "$net"
|
||
|
|
done
|
||
|
|
|
||
|
|
local ifn ifnames
|
||
|
|
config_get ifnames "$cfg" ifname
|
||
|
|
for ifn in $ifnames; do
|
||
|
|
resolve_ifname "$ifn"
|
||
|
|
done
|
||
|
|
|
||
|
|
local gateway
|
||
|
|
config_get gateway "$cfg" gateway
|
||
|
|
[ -n "$gateway" ] && append args "-G $gateway"
|
||
|
|
|
||
|
|
local expiry # = 30
|
||
|
|
config_get expiry "$cfg" expiry
|
||
|
|
[ -n "$expiry" ] && append args "-t $expiry"
|
||
|
|
|
||
|
|
local retry # = 5
|
||
|
|
config_get retry "$cfg" retry
|
||
|
|
[ -n "$retry" ] && append args "-p $retry"
|
||
|
|
|
||
|
|
local table # = 16800
|
||
|
|
config_get table "$cfg" table
|
||
|
|
[ -n "$table" ] && append args "-T $table"
|
||
|
|
|
||
|
|
local fwd_bcast # = 1
|
||
|
|
config_get_bool fwd_bcast "$cfg" forward_bcast 1
|
||
|
|
[ $fwd_bcast -eq 1 ] && append args "-B"
|
||
|
|
|
||
|
|
local fwd_dhcp # = 1
|
||
|
|
config_get_bool fwd_dhcp "$cfg" forward_dhcp 1
|
||
|
|
[ $fwd_dhcp -eq 1 ] && append args "-D"
|
||
|
|
|
||
|
|
start-stop-daemon -b -S -m -p /var/run/$link.pid \
|
||
|
|
-x /usr/sbin/relayd -- $args
|
||
|
|
|
||
|
|
uci_set_state network "$cfg" device "$ifaces"
|
||
|
|
|
||
|
|
env -i ACTION="ifup" DEVICE="$link" INTERFACE="$cfg" PROTO="relay" \
|
||
|
|
/sbin/hotplug-call iface
|
||
|
|
}
|
||
|
|
|
||
|
|
stop_interface_relay() {
|
||
|
|
local cfg="$1"
|
||
|
|
local link="relay-$cfg"
|
||
|
|
|
||
|
|
env -i ACTION="ifdown" DEVICE="$link" INTERFACE="$cfg" PROTO="relay" \
|
||
|
|
/sbin/hotplug-call iface
|
||
|
|
|
||
|
|
service_kill relayd "/var/run/$link.pid"
|
||
|
|
}
|
||
|
|
|