add support for static routes - based on the patch from #1365

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6457 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/docs/network.tex b/docs/network.tex
index 41febef..7d811ba 100644 (file)
--- a/docs/network.tex
+++ b/docs/network.tex
@@ -54,6 +54,24 @@ PPP based protocols (\texttt{pppoe}, \texttt{pptp}, ...) accept these options:
 
 For all protocol types, you can also specify the MTU by using the \texttt{mtu} option.
 
+\subsubsection{Setting up static routes}
+
+You can set up static routes for a specific interface that will be brought up 
+after the interface is configured.
+
+Simply add a config section like this:
+
+\begin{Verbatim}
+config route foo
+       option interface lan
+       option target 1.1.1.0
+       option netmask 255.255.255.0
+       option gateway 192.168.1.1
+\end{Verbatim}
+
+The name for the route section is optional, the \texttt{interface}, \texttt{target} and 
+\texttt{gateway} options are mandatory.
+Leaving out the \texttt{netmask} option will turn the route into a host route.
 
 \subsubsection{Setting up the switch (currently broadcom only)}
 

diff --git a/package/base-files/files/etc/functions.sh b/package/base-files/files/etc/functions.sh
index 931f4be..1cb365d 100755 (executable)
--- a/package/base-files/files/etc/functions.sh
+++ b/package/base-files/files/etc/functions.sh
@@ -125,10 +125,13 @@ config_set() {
 
 config_foreach() {
        local function="$1"
-       local section
+       local type="$2"
+       local section cfgtype
        
        [ -z "$CONFIG_SECTIONS" ] && return 0
        for section in ${CONFIG_SECTIONS}; do
+               config_get cfgtype "$section" TYPE
+               [ -n "$type" -a "$cfgtype" != "$type" ] && continue
                eval "$function \"\$section\""
        done
 }

diff --git a/package/base-files/files/etc/hotplug.d/iface/10-routes b/package/base-files/files/etc/hotplug.d/iface/10-routes
new file mode 100644 (file)
index 0000000..4b55f8b
--- /dev/null
+++ b/package/base-files/files/etc/hotplug.d/iface/10-routes
@@ -0,0 +1,40 @@
+add_route() {
+       local config="$1"
+
+       # is this route intended for the
+       # $INTERFACE of this hotplug event
+       config_get interface "$config" interface
+       [ "$interface" != "$INTERFACE" ] && return 0
+       
+       # get the real interface name from network config
+       config_get dev "$interface" ifname
+
+       config_get target "$config" target
+       config_get netmask "$config" netmask
+       config_get gateway "$config" gateway
+       config_get metric "$config" metric
+
+       # make sure there is a gateway and a target
+       [ -n "$target" ] || {
+               echo "Missing target in route section $config"
+               return 1
+       }
+       [ -n "$gateway" ] || {
+               echo "Missing gateway in route section $config"
+               return 1
+       }
+
+       netmask="${netmask:-255.255.255.255}"
+       dest="${netmask:+-net "$target" netmask "$netmask"}"
+       dest="${dest:--host "$target"}"
+       
+       /sbin/route add $dest gw "$gateway" ${dev:+dev "$dev"} ${metric:+ metric "$metric"}
+}
+
+case "$ACTION" in
+       ifup)
+               include /lib/network
+               scan_interfaces
+               config_foreach "add_route" route
+       ;;
+esac