links information according to batman protocol

packages/shared-state-bat_links_info/Makefile

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+#
+# Copyright (C) 2023 Javier Jorge <jjorge@inti.gob.ar>
+# Copyright (c) 2023  Instituto Nacional de Tecnología Industrial
+# Copyright (C) 2023  Asociación Civil Altermundi <info@altermundi.net>
+# This is free software, licensed under the GNU Affero General Public License v3.
+#
+
+include ../../libremesh.mk
+
+define Package/$(PKG_NAME)
+	SECTION:=lime
+	CATEGORY:=LibreMesh
+	TITLE:=Batman protocol links information module for shared-state
+	MAINTAINER:= Javier <jjorge@inti.gob.ar>
+	DEPENDS:=+lua +luci-lib-jsonc +ubus-lime-utils \
+		+lime-system +batctl-default shared-state   
+	PKGARCH:=all
+endef
+
+define Package/$(PKG_NAME)/description
+	Syncronize batman protocol links information beween nodes.
+endef
+
+$(eval $(call BuildPackage,$(PKG_NAME)))

packages/shared-state-bat_links_info/files/etc/shared-state/publishers/shared-state-publish_bat_links_info

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+../../../usr/bin/shared-state-publish_bat_links_info

packages/shared-state-bat_links_info/files/etc/uci-defaults/shared-state_bat_links_info_cron

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+#!/bin/sh
+unique_append()
+{
+	grep -qF "$1" "$2" || echo "$1" >> "$2"
+}
+
+unique_append \
+	'*/5 * * * * ((sleep $(($RANDOM % 120)); shared-state sync bat_links_info &> /dev/null)&)'\
+	/etc/crontabs/root

packages/shared-state-bat_links_info/files/usr/bin/shared-state-publish_bat_links_info

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+#!/usr/bin/lua
+
+--! LibreMesh
+--! Copyright (C) 2023  Javier Jorge <jjorge@inti.gob.ar>
+--! Copyright (C) 2023  Asociación Civil Altermundi <info@altermundi.net>
+--!
+--! This program is free software: you can redistribute it and/or modify
+--! it under the terms of the GNU Affero General Public License as
+--! published by the Free Software Foundation, either version 3 of the
+--! License, or (at your option) any later version.
+--!
+--! This program is distributed in the hope that it will be useful,
+--! but WITHOUT ANY WARRANTY; without even the implied warranty of
+--! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--! GNU Affero General Public License for more details.
+--!
+--! You should have received a copy of the GNU Affero General Public License
+--! along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+local JSON = require("luci.jsonc")
+local utils = require('lime.utils')
+local network = require ("lime.network")
+
+local hostname = utils.hostname()
+function get_bat_links_info()
+	local batneights_obj={}
+	local batneights = utils.unsafe_shell("batctl nj")
+	batneights = string.gsub(batneights,"neigh_address","dst_mac")
+	batneights = string.gsub(batneights,"hard_ifname","iface")
+	batneights_obj = JSON.parse(batneights)
+	for key,value in pairs (batneights_obj) do
+		macparts = network.get_mac(value.iface)
+		src_macaddr = table.concat(macparts,":")
+		value.src_mac=src_macaddr
+	end
+	return batneights_obj
+end
+
+local result = { [hostname] = get_bat_links_info() }
+io.popen("shared-state insert bat_links_info", "w"):write(JSON.stringify(result))

packages/shared-state-bat_links_info/tests/test_shared-state-bat_links_info.lua

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+local utils = require "lime.utils"
+local network = require ("lime.network")
+local iwinfo = require "iwinfo"
+
+
+
+describe('Tests bat_links_info #bat_links_info', function ()
+    stub(utils, "unsafe_shell", function (cmd)
+        return '[{"hard_ifindex":26,"hard_ifname":"wlan0-mesh_250","last_seen_msecs":1990,"neigh_address":"02:58:47:da:4e:aa"},{"hard_ifindex":26,"hard_ifname":"wlan0-mesh_250","last_seen_msecs":1690,"neigh_address":"02:58:47:46:28:95"},{"hard_ifindex":28,"hard_ifname":"wlan1-mesh_250","last_seen_msecs":1510,"neigh_address":"02:ab:46:da:4e:aa"},{"hard_ifindex":28,"hard_ifname":"wlan1-mesh_250","last_seen_msecs":970,"neigh_address":"02:ab:46:46:28:95"}]'
+    end)
+    stub(network, "get_mac", function (iface)
+        return iwinfo.mocks.wlan1_mesh_mac
+    end)
+
+    package.path = package.path .. ";packages/shared-state-bat_links_info/files/usr/bin/?;;"
+    require ("shared-state-publish_bat_links_info")
+
+    it('a simple test to get node info and assert requiered fields are present', function()
+        local links_info = {}
+        links_info = get_bat_links_info()
+        assert.are.equal(table.concat(iwinfo.mocks.wlan1_mesh_mac,":"), links_info[1].src_mac)
+        assert.are.equal('02:58:47:da:4e:aa', links_info[1].dst_mac)
+        assert.are.equal(26, links_info[1].hard_ifindex)
+        assert.are.equal(1990, links_info[1].last_seen_msecs)
+        assert.are.equal("wlan0-mesh_250", links_info[1].iface)
+    end)
+end)