[package] relayd: add uci integration

[openwrt/svn-archive/archive.git] / package / relayd / files / relay.sh

diff --git a/package/relayd/files/relay.sh b/package/relayd/files/relay.sh
new file mode 100644 (file)
index 0000000..3e5e84c
--- /dev/null
+++ b/package/relayd/files/relay.sh
@@ -0,0 +1,93 @@
+# 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"
+}
+