ucentral: development update

* add support for xBPF driven data planes

Signed-off-by: John Crispin <john@phrozen.org>

feeds/ucentral/ucentral-dataplane/Makefile

@@ -0,0 +1,34 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ucentral-dataplane
+PKG_RELEASE:=1
+
+PKG_MAINTAINER:=John Crispin <john@phrozen.org>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/ucentral-dataplane
+  SECTION:=ucentral
+  CATEGORY:=uCentral
+  TITLE:=uCentral xBPF loader
+  DEPENDS:=+tc-full +kmod-ifb @!TARGET_ipq807x
+endef
+
+define Package/ucentral-dataplane/description
+	Allow loading cBPF and eBPF programs
+endef
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+endef
+
+define Build/Compile/Default
+
+endef
+Build/Compile = $(Build/Compile/Default)
+
+define Package/ucentral-dataplane/install
+	$(CP) ./files/* $(1)
+endef
+
+$(eval $(call BuildPackage,ucentral-dataplane))

feeds/ucentral/ucentral-dataplane/files/etc/config/dataplane

@@ -0,0 +1,6 @@
+#config program 'example'
+#	option type 'ingress'
+#	option program '/tmp/ucentral/~1services~1data_plane/ingress_0'
+
+#config interface 'up0v0'
+#	list program 'example'

feeds/ucentral/ucentral-dataplane/files/etc/hotplug.d/iface/80-dataplane

@@ -0,0 +1,10 @@
+[ "$ACTION" == 'ifup' ] || exit 0
+dev=$(ubus call network.interface.$INTERFACE status | jsonfilter -e '@.l3_device')
+program=$(uci get dataplane.$INTERFACE.program)
+tc qdisc del dev $dev handle ffff: ingress
+tc qdisc add dev $dev handle ffff: ingress
+for p in $program; do                     
+        path=$(uci get dataplane.$p.program)
+        [ -f "$path" ] || continue          
+        tc filter add dev $dev parent ffff: bpf obj $path verbose direct-action
+done 

feeds/ucentral/ucentral-dataplane/files/etc/init.d/dataplane

@@ -0,0 +1,19 @@
+#!/bin/sh /etc/rc.common
+
+START=19
+USE_PROCD=1
+PROG=/usr/libexec/dataplane.sh
+
+reload_service() {
+	restart
+}
+
+service_triggers() {
+	procd_add_reload_trigger dataplane
+}
+
+start_service() {
+	procd_open_instance
+	procd_set_param command "$PROG"
+	procd_close_instance
+}

feeds/ucentral/ucentral-dataplane/files/usr/libexec/dataplane.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+. /lib/functions.sh
+
+load() {
+	INTERFACE=$1 ACTION=ifup . /etc/hotplug.d/iface/80-dataplane
+}
+
+config_load dataplane
+config_foreach load interface
+

feeds/ucentral/ucentral-schema/Makefile

@@ -6,7 +6,7 @@ PKG_RELEASE:=1
 PKG_SOURCE_URL=https://github.com/blogic/ucentral-schema.git
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_DATE:=2021-02-15
-PKG_SOURCE_VERSION:=1022c4a364298bfadfc0a1bfaeaa16b3a4792efb
+PKG_SOURCE_VERSION:=15ffad87068ce3ef304d6b4cb2f9d6acf5775139
 
 PKG_MAINTAINER:=John Crispin <john@phrozen.org>
 PKG_LICENSE:=BSD-3-Clause

profiles/ucentral-ap.yml

@@ -30,11 +30,11 @@ packages:
   - ratelimit
   - rtty-openssl
   - sqm-scripts
-  - tc-full
   - tcpdump
   - tip-defaults
   - tmate
   - ucentral-client
+  - ucentral-dataplane
   - ucentral-event
   - ucentral-schema
   - ucentral-wifi