kadnode: add new package

Signed-off-by: Moritz Warning <moritzwarning@web.de>

net/kadnode/files/kadnode.config

@@ -0,0 +1,58 @@
+##
+## KadNode is a P2P DNS resolver to resolve domains using the BitTorrent network.
+##
+
+config kadnode
+	option enabled 1
+
+
+## ECC Key usage:
+## 1. Create public/secret key pair with `kadnode --bob-create-key /etc/kadnode_secret.pem`
+## 2. Put the secret key file on the router that you want to resolve to and use it for option bob_load_key.
+## 3. Use the public key hex output with .p2p attached on other devices to resovle to the router IP address via kadnode.
+
+## Secret key for public key links
+#	list bob_load_key '/etc/kadnode_secret.pem'
+
+
+## TLS usage:
+## For resolving domains, put credentials on the router and use option tls_client_cert.
+## For announcing domains, put the certificates and secret key on router and use option tls_server_cert.
+
+## Folder of CA certificates
+## Install package 'ca-certificates' for the official CA set.
+#	list tls_client_cert '/etc/ssl/certs'
+
+## Server credentials
+#	list tls_server_cert '/ect/mynode.crt,/etc/mynode.key'
+
+
+## Add domains to be announced.
+## Note: Only needed in special situations since tls_server_cert and bob_load_key announce automatically its associated domains.
+#	list announce 'web.myname.p2p'
+
+## Load and store good nodes every 24h and on start/shutdown.
+#	option peerfile '/etc/kadnode/peers.txt'
+
+## Add static peers addresses.
+	list peer 'bttracker.debian.org:6881'
+	list peer 'router.bittorrent.com:6881'
+
+## Bind the DHT to this port.
+#	option port '6881'
+
+## Limit DHT communication to this interface.
+#	option ifname 'eth0'
+
+## Verbosity: quiet, verbose or debug
+#	option verbosity 'quiet'
+
+## Local port to accept forwarded requests.
+#	option dns_port '3535'
+
+## Disable multicast peer discovery on the LAN.
+#	option lpd_disable '1'
+
+## Disable port forwarding when this router is behind another
+## router in a private network that supports UPnP/NAT-PMP.
+#	option fwd_disable '1'

net/kadnode/files/kadnode.init

@@ -0,0 +1,89 @@
+#!/bin/sh /etc/rc.common
+
+START=95
+USE_PROCD=1
+KADNODE_BIN=/usr/bin/kadnode
+OPTS=""
+
+
+xappend() {
+	local name="$2" value="$1"
+	OPTS="$OPTS--${name//_/-} ${value//'/\\'}
+"
+}
+
+append_opts_list() {
+	local name cfg="$1"; shift
+	for name in $*; do
+		config_list_foreach "$cfg" "$name" xappend "$name"
+	done
+}
+
+append_opts() {
+	local name value cfg="$1"; shift
+	for name in $*; do
+		config_get value "$cfg" "$name"
+		[ -n "$value" ] && xappend "$value" "$name"
+	done
+}
+
+append_opts_boolean() {
+	local name value cfg="$1"; shift
+	for name in $*; do
+		config_get_bool value "$cfg" "$name" 0
+		[ $value -gt 0 ] && xappend '' $name
+	done
+}
+
+section_enabled() {
+	config_get_bool enabled "$1" 'enabled' 0
+	[ $enabled -gt 0 ]
+}
+
+start_instance() {
+	local cfg="$1"
+	local CONFIG_FILE=/tmp/kadnode.${cfg}.conf
+
+	section_enabled "$cfg" || return
+
+	OPTS=""
+
+	append_opts "$cfg" lpd_addr dns_server dns_port verbosity peerfile config \
+		query_tld user port ifname cmd_port
+
+	append_opts_list "$cfg" announce peer tls_client_cert tls_server_cert bob_load_key
+
+	append_opts_boolean "$cfg" dns_proxy_enable lpd_disable fwd_disable ipv4 ipv6
+
+	# Close stdin when cmd feature is present
+	if [ $($KADNODE_BIN --version | grep -c cmd) -eq 1 ]; then
+		xappend "" "cmd_disable_stdin"
+	fi
+
+	echo "$OPTS" > $CONFIG_FILE
+
+	procd_open_instance
+	procd_set_param command $KADNODE_BIN
+	procd_set_param file $CONFIG_FILE
+	procd_set_param stderr 1
+	procd_set_param stdout 1
+	procd_append_param command --config $CONFIG_FILE
+	procd_close_instance
+}
+
+stop_instance() {
+	local cfg="$1"
+	local CONFIG_FILE=/tmp/kadnode.${cfg}.conf
+
+	rm -f $CONFIG_FILE
+}
+
+start_service() {
+	config_load 'kadnode'
+	config_foreach start_instance 'kadnode'
+}
+
+stop_service() {
+	config_load 'kadnode'
+	config_foreach stop_instance 'kadnode'
+}

net/kadnode/files/kadnode.postinst

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+uci add_list dhcp.@dnsmasq[0].server='/p2p/::1#3535'
+uci commit dhcp
+
+exit 0