babeld: add new package

net/babeld/Makefile

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+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2007-2021 OpenWrt.org
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=babeld
+PKG_VERSION:=1.13.1
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://www.irif.fr/~jch/software/files/
+PKG_HASH:=15f24d26da0ccfc073abcdef0309f281e4684f2aa71126f826572c4c845e8dd9
+
+PKG_MAINTAINER:=Gabriel Kerneis <gabriel@kerneis.info>, \
+	Baptiste Jonglez <openwrt-pkg@bitsofnetworks.org>, \
+	Nick Hainke <vincent@systemli.org>
+PKG_LICENSE:=MIT
+PKG_LICENSE_FILES:=LICENCE
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/babeld
+  SECTION:=net
+  CATEGORY:=Network
+  SUBMENU:=Routing and Redirection
+  TITLE:=A loop-avoiding distance-vector routing protocol
+  URL:=https://www.irif.fr/~jch/software/babel/
+  DEPENDS:=@IPV6 +libubus +libubox
+endef
+
+define Package/babeld/description
+  Babel is a loop-avoiding distance-vector routing protocol for IPv6 and IPv4
+  with fast convergence properties. It is based on the ideas in DSDV, AODV and
+  Cisco's EIGRP, but is designed to work well not only in wired networks but
+  also in wireless mesh networks, and has been extended with support for
+  overlay networks. Babel is an IETF standard protocol (RFC 8966).
+endef
+
+define Package/babeld/conffiles
+/etc/babeld.conf
+/etc/config/babeld
+endef
+
+MAKE_FLAGS+= \
+	CFLAGS="$(TARGET_CFLAGS)" \
+	LDLIBS="-lubus -lubox"
+
+define Package/babeld/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/babeld $(1)/usr/sbin/
+	$(INSTALL_DIR) $(1)/etc
+	$(INSTALL_CONF) ./files/babeld.conf $(1)/etc/
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/babeld.config $(1)/etc/config/babeld
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/babeld.init $(1)/etc/init.d/babeld
+endef
+
+$(eval $(call BuildPackage,babeld))

net/babeld/files/babeld.conf

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+# babel config file
+#
+# This config file simply documents sample entries. 
+# "redistribute" means: redistribute routes from other routing protocols
+# into babel. "local" means addresses assigned to local interfaces.
+#
+# You do not need to edit this file: you can use /etc/config/babeld
+# instead (sections "interface" and "filter").  Both files can be used
+# simultaneously (the rules of this file are executed first).
+
+# the default rules are:
+#
+## redistribute local 
+## redistribute deny
+#
+# this says, redistribute local addresses but no other routes
+
+
+# redistribute IPv4 default route into babel 
+## redistribute local ip 0.0.0.0/0 le 0 metric 128
+
+# same but for IPv6
+## redistribute local ip ::/0 le 0 metric 128
+
+
+# don't redistribute all local addresses, only selected ones
+# after the first line, the "deny" rules kicks in. After the "deny"
+# no redistribute local rules are going to match
+## redistribute local ip 192.160.4.0/24 
+## redistribute local deny
+
+
+# Babel refuses to redistribute routes with a protocol number of "boot";
+# this is standard practice, and means that you cannot easily
+# redistribute the default route installed by dhcp.  It is however
+# possible to redistribute such route by explicitly specifying "proto 3"
+# on the redistribute line.
+## redistribute ip 0.0.0.0/0 le 0 proto 3 metric 128

net/babeld/files/babeld.config

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+package babeld
+
+# Detailed documentation: https://openwrt.org/docs/guide-user/services/babeld
+
+# Babeld reads options from the following files (the last one takes precedence
+# if an option is defined in several places):
+# - the file defined by the option conf_file (default: /etc/babeld.conf),
+# - *.conf files in the directory defined by conf_dir (default: /tmp/babel.d/),
+# - this UCI configuration file.
+
+# See "man babeld" for all available options ("Global options").
+# Important: remember to use '_' instead of '-' in option names.
+config general
+	# option 'random_id' 'true'
+	# option 'debug' '1'
+	# option 'local_port' '33123'
+	# option 'log_file' '/var/log/babeld.log'
+	## Enable ipv6-subtrees by default since OpenWrt should ship with a
+	## recent enough kernel for it to work.
+	option 'ipv6_subtrees' 'true'
+	# list 'import_table' '42'
+	# list 'import_table' '100'
+	## Alternative configuration file and directory.
+	## See comment at the top of this file for more details.
+	# option 'conf_file' '/etc/babeld.conf'
+	# option 'conf_dir' '/tmp/babel.d/'
+	# option 'ubus_bindings' 'false'
+
+config interface
+	## Remove this line to enable babeld on this interface
+	option 'ignore' 'true'
+	## You can use aliases (like lan, wlan) or real names (like eth0.0).
+	## If you use an alias, it must be already defined when babeld starts.
+	## Otherwise, the name is taken literally and the interface can be
+	## brought up later (useful for tunnels for instance).
+	option 'ifname' 'wlan'
+	## You can set options, see babeld man page ("Interface configuration")
+	# option 'rxcost' '256'
+	# option 'hello_interval' '1'
+
+config interface
+	option 'ignore' 'true'
+	## Physical interface name
+	option 'ifname' 'tun-example'
+        ## Specify the type of interface: tunnels use the RTT-based metric.
+	option 'type' 'tunnel'
+	## Other options that can be overriden.
+	# option 'max_rtt_penalty' '96'
+
+# A config interface without "option ifname" will set default options
+# for all interfaces.  Interface-specific configuration always overrides
+# default configuration.
+config interface
+	# option 'enable_timestamps' 'true'
+	# option 'update_interval' '30'
+
+
+# A filter consists of a type ('in', 'out', 'redistribute' or 'install'),
+# a set of selectors ('ip', 'eq', etc.) and a set of actions to perform
+# ('allow', 'deny', 'metric xxx', 'src-prefix xxx', 'table xxx', 'pref-src xxx').
+# See babeld man page ("Filtering rules") for more details.
+
+# Below is a sample filter that redistributes the default route if its
+# protocol number is "boot", e.g. when it is installed by dhcp (see
+# /etc/iproute2/rt_protos).  This filter is disabled thanks to the 'ignore'
+# setting.
+config filter
+	option 'ignore'	'true'
+	# Type of filter
+	option 'type'	'redistribute'
+	# Selectors: ip, eq, le, ge, src_ip, src_eq, src_le, src_ge, neigh, id,
+	# proto, local, if.
+	option 'ip'	'0.0.0.0/0'
+	option 'eq'	'0'
+	option 'proto'	'3'
+	# Action, which can be any of: allow, deny, metric <NUMBER>, src-prefix <PREFIX>,
+	# table <ID>, pref-src <IP>.
+	# The action defaults to "allow" if not specified.  Here, we specify a higher
+	# redistribution metric than the default (0).
+	option 'action'	'metric 128'
+
+# Another example filter: don't redistribute local addresses in a certain IP prefix.
+# By default, babeld redistributes *all* local addresses.
+config filter
+	option 'ignore'	'true'
+	option 'type'	'redistribute'
+	# Only apply to routes/addresses within this prefix.
+	option 'ip'	'198.51.100.0/24'
+	# Notice that the 'local' selector is a boolean.
+	option 'local'	'true'
+	# Don't redistribute.
+	option 'action'	'deny'
+
+# Example install filter, to change or filter routes before they are inserted
+# into the kernel.
+config filter
+	option 'ignore'		'true'
+	option 'type'		'install'
+	# Optional: only apply to routes within 2001:db8:cafe::/48
+	option 'ip'		'2001:db8:cafe::/48'
+	# We specify the kernel routing table and the preferred source address to use for these routes.
+	# "Allow" is implicit.
+	option 'action'		'table 200  pref-src 2001:db8:ba:be1::42'