From 3086205f0222a4c71e24a7c670c266dd61add069 Mon Sep 17 00:00:00 2001
From: "Arnaud G. GIBERT" <arnaud@rx3.net>
Date: Thu, 5 Jun 2025 11:22:52 +0200
Subject: [PATCH] - Add missing files.

---
 ReadMe.txt                    |  1 +
 usr/local/sbin/ip_host_update | 19 ++++++++
 usr/local/sbin/ns-launch      | 86 +++++++++++++++++++++++++++++++++++
 3 files changed, 106 insertions(+)
 create mode 100755 usr/local/sbin/ip_host_update
 create mode 100755 usr/local/sbin/ns-launch

diff --git a/ReadMe.txt b/ReadMe.txt
index fa612af..b0b5137 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -12,6 +12,7 @@ The following topics are tageted:
     - VPN,
     - Proxy,
     - Port forwarding,
+    - Dynamic DNS.
 
 This release support IPTables and OpenVPN.
 
diff --git a/usr/local/sbin/ip_host_update b/usr/local/sbin/ip_host_update
new file mode 100755
index 0000000..5620bb4
--- /dev/null
+++ b/usr/local/sbin/ip_host_update
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+host=$1
+zone=$2
+ip=$3
+ttl=$4
+
+
+
+date="$(date --rfc-3339 seconds)"
+
+(
+	echo "prereq yxrrset ${host}.${zone}. A"
+	echo "update delete  ${host}.${zone}. A"
+	echo "update add     ${host}.${zone}. ${ttl} A ${ip}"
+	echo "update delete  ${host}.${zone}. TXT"
+	echo "update add     ${host}.${zone}. ${ttl} TXT ${date}"
+	echo ""
+) | nsupdate
diff --git a/usr/local/sbin/ns-launch b/usr/local/sbin/ns-launch
new file mode 100755
index 0000000..3491a37
--- /dev/null
+++ b/usr/local/sbin/ns-launch
@@ -0,0 +1,86 @@
+#!/bin/bash
+
+[ -e /etc/sysconfig/rx3-net ] && . /etc/sysconfig/rx3-net 
+
+
+   id=$1
+table=$2
+shift
+shift
+  cmd="$(printf " %q" "$@")"
+
+   prefix=10.2
+
+  eth_dev="v-eth${id}"
+ peer_dev="v-peer${id}"
+peer_addr="${prefix}.${id}.1"
+ eth_addr="${prefix}.${id}.254"
+ eth_mask="255.255.255.0"
+peer_mask="${eth_mask}"
+  ns_name="darkstar${id}"
+
+export PATH=$PATH:/usr/local/sbin:/usr/local/bin
+
+
+
+# Create Net-NS
+
+ip netns del ${ns_name} 2>/dev/null
+sleep 3
+
+ip netns add ${ns_name}
+
+
+
+# Create v-eth / v-peer
+
+ip link del ${eth_dev} 2>/dev/null
+ip link add ${eth_dev} type veth peer name ${peer_dev}
+
+
+
+# Add v-peer to Net-NS
+
+ip link set ${peer_dev} netns ${ns_name}
+
+
+
+# Configure v-eth
+
+#ip link set ${eth_dev}  up
+#ip link set ${peer_dev} up
+ifconfig ${eth_dev} ${eth_addr} netmask ${eth_mask} up
+
+
+
+# Configure lo, v-peer & default route
+
+ip netns exec ${ns_name} ip link set lo up
+ip netns exec ${ns_name} ifconfig ${peer_dev} ${peer_addr} netmask ${peer_mask} up
+ip netns exec ${ns_name} route add default gw ${eth_addr} dev ${peer_dev}
+
+
+
+# Add rule to table
+
+ip rule del from ${peer_addr} 2>/dev/null
+ip rule add from ${peer_addr} table ${table}
+
+
+
+# Add new route in vpn tables
+
+route="$(ip route list table main | grep -e ${eth_dev} | grep -e ${eth_addr} | sed 's/ proto.*//')" 
+for tab in ${TABLE_LIST} 
+do
+  ip route del ${route} table ${tab} 2>/dev/null
+  ip route add ${route} table ${tab}
+done
+
+
+
+
+
+# Run the cmd
+
+ip netns exec ${ns_name} "$@"