kadnode: add new package

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

net/kadnode/Config.in

@@ -0,0 +1,44 @@
+menu "Configuration"
+	depends on PACKAGE_kadnode
+
+config KADNODE_ENABLE_LPD
+	bool "Enable Local Peer Discovery"
+	depends on PACKAGE_kadnode
+	default y
+
+config KADNODE_ENABLE_CMD
+	bool "Enable Command Console"
+	depends on PACKAGE_kadnode
+	default y
+
+config KADNODE_ENABLE_DNS
+	bool "Enable the local DNS server"
+	depends on PACKAGE_kadnode
+	default y
+
+config KADNODE_ENABLE_TLS
+	bool "Enable TLS authentication support"
+	depends on PACKAGE_kadnode
+	default y
+
+config KADNODE_ENABLE_BOB
+	bool "Enable BOB authentication support"
+	depends on PACKAGE_kadnode
+	default y
+
+config KADNODE_ENABLE_UPNP
+	bool "Enable UPnP support to add port forwardings on other routers"
+	depends on PACKAGE_kadnode
+	default n
+
+config KADNODE_ENABLE_NATPMP
+	bool "Enable NAT-PMP support to add port forwardings on other routers"
+	depends on PACKAGE_kadnode
+	default n
+
+config KADNODE_ENABLE_DEBUG
+	bool "Build in debug mode"
+	depends on PACKAGE_kadnode
+	default n
+
+endmenu

net/kadnode/Makefile

@@ -0,0 +1,93 @@
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=kadnode
+PKG_VERSION:=2.0.2
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=git://github.com/mwarning/KadNode.git
+PKG_SOURCE_VERSION:=26dbc9436f8d2c68b899cd32e01bdbe1565294b2
+
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_MIRROR_HASH:=67ba2ce03c3dd74b547885891391657aa9d6fae7c14558634776e1111e7cbe57
+PKG_LICENSE:=MIT
+
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/kadnode
+	SECTION:=net
+	CATEGORY:=Network
+	TITLE:=P2P DNS Resolver
+	SUBMENU:=IP Addresses and Names
+	URL:=https://github.com/mwarning/KadNode
+	MENU:=1
+	DEPENDS:=+KADNODE_ENABLE_BOB:libmbedtls +KADNODE_ENABLE_TLS:libmbedtls +KADNODE_ENABLE_UPNP:libminiupnpc +KADNODE_ENABLE_NATPMP:libnatpmp
+	MAINTAINER:=Moritz Warning <moritzwarning@web.de>
+endef
+
+define Package/kadnode/description
+	A P2P DNS system based on the BitTorrent network. It can be used as a decentralized DynDNS service.
+endef
+
+define Package/kadnode/config
+	source "$(SOURCE)/Config.in"
+endef
+
+FEATURES = 
+
+ifeq ($(CONFIG_KADNODE_ENABLE_CMD),y)
+FEATURES += cmd
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_LPD),y)
+FEATURES += lpd
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_TLS),y)
+FEATURES += tls
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_BOB),y)
+FEATURES += bob
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_DNS),y)
+FEATURES += dns
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_UPNP),y)
+FEATURES += upnp
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_NATPMP),y)
+FEATURES += natpmp
+endif
+
+ifeq ($(CONFIG_KADNODE_ENABLE_DEBUG),y)
+FEATURES += debug
+endif
+
+MAKE_FLAGS += FEATURES="$(FEATURES)"
+
+define Package/kadnode/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/kadnode $(1)/usr/bin/
+ifeq ($(CONFIG_KADNODE_ENABLE_CMD),y)
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/kadnode-ctl $(1)/usr/bin/
+endif
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) files/kadnode.init $(1)/etc/init.d/kadnode
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) files/kadnode.config $(1)/etc/config/kadnode
+	$(INSTALL_DIR) $(1)/etc/uci-defaults
+	$(INSTALL_BIN) files/kadnode.postinst $(1)/etc/uci-defaults/99_kadnode
+endef
+
+$(eval $(call BuildPackage,kadnode))

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

net/kadnode/patches/0001-fix-type-of-returned-address-count.patch

@@ -0,0 +1,46 @@
+From a1f9e4e58dcdc7ea4e3b2bd3df110f10d23b437c Mon Sep 17 00:00:00 2001
+From: Moritz Warning <moritzwarning@web.de>
+Date: Sun, 14 Jan 2018 21:47:24 +0100
+Subject: [PATCH] fix type of returned address count
+
+---
+ src/ext-dns.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/ext-dns.c b/src/ext-dns.c
+index 3394e33..89a2311 100644
+--- a/src/ext-dns.c
++++ b/src/ext-dns.c
+@@ -470,9 +470,9 @@ static void setPointerRecord( struct ResourceRecord *rr, const char name[], cons
+ 	rr->rd_data.ptr_record.name = domain;
+ }
+ 
+-static int dns_setup_msg( struct Message *msg, IP addrs[], size_t addrs_num, const char* hostname ) {
++static int dns_setup_msg( struct Message *msg, IP addrs[], int addrs_num, const char* hostname ) {
+ 	const char *qName;
+-	size_t i, c;
++	int i, c;
+ 
+ 	// Header: leave most values intact for response
+ 	msg->qr = 1; // This is a response
+@@ -606,7 +606,7 @@ static void proxy_forward_response( uint8_t *buffer, ssize_t buflen, uint16_t id
+ static void dns_handler( int rc, int sock ) {
+ 	struct Message msg;
+ 	IP clientaddr;
+-	size_t addrs_num;
++	int addrs_num;
+ 	IP addrs[MAX_ADDR_RECORDS];
+ 	socklen_t addrlen_ret;
+ 	ssize_t buflen;
+@@ -702,7 +702,7 @@ log_info("setup response");
+ 			return;
+ 		}
+ 
+-		log_debug( "DNS: Send back %lu addresses to: %s",
++		log_debug( "DNS: Send back %d addresses to: %s",
+ 			addrs_num, str_addr( &clientaddr )
+ 		);
+ 	}
+-- 
+2.15.1
+