various patches to add support for ppp over evdo or character devices

SVN-Revision: 7076

package/base-files/files/lib/network/config.sh

@@ -76,6 +76,8 @@ prepare_interface() {
 	# the bridge interface wouldn't exist.
 	[ "$iface" = "br-$config" ] && return 0;
 
+	[ -f "$iface" ] && return 0;
+	
 	ifconfig "$iface" 2>/dev/null >/dev/null && {
 		# make sure the interface is removed from any existing bridge and brought down
 		ifconfig "$iface" down

package/kernel/modules/usb.mk

@@ -170,6 +170,16 @@ define KernelPackage/usb-serial
 endef
 $(eval $(call KernelPackage,usb-serial))
 
+define KernelPackage/usb-serial-airprime
+  TITLE:=Support for Airprime (EVDO) 
+  DESCRIPTION:=Kernel support for Airprime (EVDO) 
+  DEPENDS:=kmod-usb-serial
+  SUBMENU:=$(USBMENU)
+  KCONFIG:=$(CONFIG_USB_SERIAL_AIRPRIME)
+  FILES:=$(LINUX_DIR)/drivers/usb/serial/airprime.$(LINUX_KMOD_SUFFIX)
+  AUTOLOAD:=$(call AutoLoad,65,airprime)
+endef
+$(eval $(call KernelPackage,usb-serial-airprime))
 
 define KernelPackage/usb-serial-belkin
   TITLE:=Support for Belkin devices

package/ppp/files/ppp.sh

@@ -21,6 +21,10 @@ start_pppd() {
 	config_get username "$cfg" username
 	config_get password "$cfg" password
 	config_get keepalive "$cfg" keepalive
+
+	config_get connect "$cfg" connect
+	config_get disconnect "$cfg" disconnect
+
 	interval="${keepalive##*[, ]}"
 	[ "$interval" != "$keepalive" ] || interval=5
 	
@@ -34,7 +38,23 @@ start_pppd() {
 		replacedefaultroute \
 		${username:+user "$username" password "$password"} \
 		linkname "$cfg" \
-		ipparam "$cfg"
+		ipparam "$cfg" \
+		${connect:+connect "$connect"} \
+		${disconnect:+disconnect "$disconnect"}
 
 	lock -u "/var/lock/ppp-${cfg}"
 }
+
+setup_interface_ppp() {
+	local iface="$1"
+	local config="$2"
+
+	config_get device "$config" device
+
+	config_get mtu "$cfg" mtu
+	mtu=${mtu:-1492}
+	start_pppd "$config" \
+		mtu $mtu mru $mtu \
+		"$device"
+}
+