initial Eltex-mes IPv6 address discovery (#13594)

* initial Eltex-mes IPv6 address discovery

* styleci

* add Eltex-mes devices in group: radlan

* merge two OIDs

* styleci

* ipv6 normalize

includes/definitions/eltex-mes21xx.yaml

@@ -14,6 +14,7 @@ discovery:
             - .1.3.6.1.4.1.35265.1.43
 
 mib_dir: eltexmes21xx
+group: radlan
 
 bad_iftype:
     - tunnel

includes/definitions/eltex-mes23xx.yaml

@@ -15,6 +15,7 @@ discovery:
             - .1.3.6.1.4.1.35265.1.83
 
 mib_dir: eltexmes23xx
+group: radlan
 
 bad_iftype:
     - tunnel

includes/discovery/ipv6-addresses/eltex-mes21xx.inc.php

@@ -0,0 +1,46 @@
+<?php
+/**
+ * mes21xx.inc.php
+ *
+ * IPv6 address discovery file for eltex-mes21xx OS
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @link       https://www.librenms.org
+ *
+ * @copyright  2021 Peca Nesovanovic
+ * @author     Peca Nesovanovic <peca.nesovanovic@sattrakt.com>
+ */
+
+//IP-MIB
+$oids = SnmpQuery::walk('IP-MIB::ipAddressIfIndex.ipv6')->table(2);
+//merge Radlan-IPv6 with IP-MIB
+$oidm = SnmpQuery::walk('RADLAN-IPv6::rlIpAddressTable')->table(2, $oids);
+
+if ($oidm) {
+    d_echo('Eltex IPv6: discovering ...');
+
+    foreach ($oidm['ipv6'] as $ip => $iparray) {
+        d_echo('Eltex IPv6: processing ' . $ip);
+
+        $index = $iparray['IP-MIB::ipAddressIfIndex'];
+        $prefixlen = $iparray['RADLAN-IPv6::rlIpAddressPrefixLength'];
+        $type = $iparray['RADLAN-IPv6::rlIpAddressType'];
+        $v6addr = normalize_snmp_ip_address($ip); //convert from xx:xx:xx:xx to xxxx:xxxx
+
+        if ($type == 1 && $index && $prefixlen) {
+            discover_process_ipv6($valid, $index, $v6addr, $prefixlen, 'manual', $device['context_name']);
+        }
+    }
+}

includes/discovery/ipv6-addresses/eltex-mes23xx.inc.php

@@ -0,0 +1,46 @@
+<?php
+/**
+ * mes23xx.inc.php
+ *
+ * IPv6 address discovery file for eltex-mes23xx OS
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @link       https://www.librenms.org
+ *
+ * @copyright  2021 Peca Nesovanovic
+ * @author     Peca Nesovanovic <peca.nesovanovic@sattrakt.com>
+ */
+
+//IP-MIB
+$oids = SnmpQuery::walk('IP-MIB::ipAddressIfIndex.ipv6')->table(2);
+//merge Radlan-IPv6 with IP-MIB
+$oidm = SnmpQuery::walk('RADLAN-IPv6::rlIpAddressTable')->table(2, $oids);
+
+if ($oidm) {
+    d_echo('Eltex IPv6: discovering ...');
+
+    foreach ($oidm['ipv6'] as $ip => $iparray) {
+        d_echo('Eltex IPv6: processing ' . $ip);
+
+        $index = $iparray['IP-MIB::ipAddressIfIndex'];
+        $prefixlen = $iparray['RADLAN-IPv6::rlIpAddressPrefixLength'];
+        $type = $iparray['RADLAN-IPv6::rlIpAddressType'];
+        $v6addr = normalize_snmp_ip_address($ip); //convert from xx:xx:xx:xx to xxxx:xxxx
+
+        if ($type == 1 && $index && $prefixlen) {
+            discover_process_ipv6($valid, $index, $v6addr, $prefixlen, 'manual', $device['context_name']);
+        }
+    }
+}