proper support for mocking spongebob dns encoding

* Add .meship protocol support (#7)

* Add an option to disable .meship resolver

Co-authored-by: George <zhoreeq@users.noreply.github.com>

Makefile

@@ -2,13 +2,19 @@ GOARCH := $(GOARCH)
 GOOS := $(GOOS)
 FLAGS := -ldflags "-s -w"
 
-all:
+all: meshnamed whoami
+
+meshnamed:
 	GOARCH=$$GOARCH GOOS=$$GOOS go build $(FLAGS) ./cmd/meshnamed
 
+whoami:
+	GOARCH=$$GOARCH GOOS=$$GOOS go build $(FLAGS) ./cmd/whoami
+
 clean:
-	$(RM) meshnamed meshnamed.exe
+	$(RM) meshnamed meshnamed.exe whoami whoami.exe
 
 test:
 	go test pkg/meshname/*_test.go
 
-.PHONY: all clean test
+.PHONY: all meshnamed whoami clean test
+

README.md

@@ -1,5 +1,7 @@
 # meshname
 
+<img src="https://raw.githubusercontent.com/zhoreeq/meshname/master/img/logo-medium.png">
+
 A universal naming system for all IPv6-based mesh networks, including CJDNS and Yggdrasil. 
 Implements the [Meshname protocol](https://github.com/zhoreeq/meshname/blob/master/protocol.md).
 
@@ -11,85 +13,17 @@ Implements the [Meshname protocol](https://github.com/zhoreeq/meshname/blob/mast
 - Q: *Meshname domains are ugly.*
 - A: Yes, if you want decentralization, you either have ugly names or a blockchain. Meshname has ugly names, but it works at least!
 
-## How to install and use
+## How to use meshname domains?
 
-Minimum go version 1.12 is required.
+Use a full-featured DNS server with the meshname protocol support, i.e. [PopuraDNS](https://github.com/popura-network/PopuraDNS).
 
-1) Get the source code and compile
-```
-git clone https://github.com/zhoreeq/meshname.git
-cd meshname
-make
-```
-2) Generate the default config for your host
-```
-./meshnamed -genconf 200:6fc8:9220:f400:5cc2:305a:4ac6:967e -subdomain meshname | tee /tmp/meshnamed.conf
-```
-3) Run the daemon
-```
-./meshnamed -useconffile /tmp/meshnamed.conf
-```
-4) Optionally, set configuration flags
-```
-./meshnamed -listenaddr [::1]:53535 -debug -useconffile /tmp/meshnamed.conf
-```
-5) See the list of all configuration flags
-```
-./meshnamed -help
-```
-Add custom DNS records to the configuration file and restart the daemon to apply settings.
-A DNS record can be of any valid string form parsed by [miekg/dns#NewRR](https://godoc.org/github.com/miekg/dns#NewRR) function (see example configuration file below).
+For a standalone .meshname stub resolver see `USAGE.md`
 
-## systemd unit
+## Alternative implementations
 
-Look for `meshnamed.service` in the source directory for a systemd unit file.
+[Mario DNS](https://notabug.org/acetone/mario-dns) by acetone, a C++ implementation with a web interface.
 
-## Example configuration file
-
-In this example, meshnamed is configured as authoritative server for two domain zones:
-
-    {
-            "aiag7sesed2aaxgcgbnevruwpy": [
-                    "aiag7sesed2aaxgcgbnevruwpy.meshname. AAAA 200:6fc8:9220:f400:5cc2:305a:4ac6:967e",
-                    "_xmpp-client._tcp.aiag7sesed2aaxgcgbnevruwpy.meshname. SRV 5 0 5222 xmpp.aiag7sesed2aaxgcgbnevruwpy.meshname",
-                    "_xmpp-server._tcp.aiag7sesed2aaxgcgbnevruwpy.meshname. SRV 5 0 5269 xmpp.aiag7sesed2aaxgcgbnevruwpy.meshname",
-                    "xmpp.aiag7sesed2aaxgcgbnevruwpy.meshname. AAAA 300:6fc8:9220:f400::1",
-                    "forum.aiag7sesed2aaxgcgbnevruwpy.meshname. CNAME amag7sesed2aaaaaaaaaaaaaau.meshname."
-            ],
-            "amag7sesed2aaaaaaaaaaaaaau": [
-                    "amag7sesed2aaaaaaaaaaaaaau.meshname. AAAA 300:6fc8:9220:f400::5"
-            ]
-    }
-
-## Configure dnsmasq as a primary DNS resolver with "meshname." support
-
-`/etc/dnsmasq.conf`
-
-    port=53
-    domain-needed
-    bogus-priv
-    server=/meshname/::1#53535
-    server=8.8.8.8
-
-## Using meshnamed as a standalone DNS server
-
-Set the flag to listen on all interfaces and a standard DNS server port
-
-    ./meshnamed -listenaddr [::]:53 -useconffile /tmp/meshnamed.conf
-
-Run as root and allow incoming connections to port 53/UDP in firewall settings.
-
-## Custom top level domains (TLD) and subnet filtering
-
-meshnamed can be configured to resolve custom TLDs.
-To run meshnamed for TLD `.newmesh` with addresses in `fd00::/8` 
-set a flag `-networks newmesh=fd00::/8`.
-
-By default, in addition to `.meshname` it also resolves `.ygg` for IPv6 addresses in 
-`200::/7` subnet and `.cjd` for `fc00::/8`. 
-
-Requests are filtered by subnet validation. Request is ignored if a decoded 
-IPv6 address doesn't match the specified subnet for a TLD.
+[Ruby gem](https://rubygems.org/gems/meshname) by marek22k, [source](https://github.com/marek22k/meshname).
 
 ## See also
 

USAGE.md

@@ -0,0 +1,58 @@
+# How to install and use
+
+Minimum go version 1.12 is required.
+
+1) Get the source code and compile
+```
+git clone https://github.com/zhoreeq/meshname.git
+cd meshname
+make
+```
+2) Run the daemon
+```
+./meshnamed
+```
+3) Optionally, set configuration flags
+```
+./meshnamed -listenaddr [::1]:53535 -debug
+```
+4) See the list of all available flags
+```
+./meshnamed -help
+```
+
+## Get meshname subdomain from an IPv6 address
+
+```
+./meshnamed -getname 200:f8b1:f974:967f:dd32:145d:1cc0:3679
+aiaprmpzoslh7xjscrorzqbwpe
+```
+
+Use this subdomain with a .meshname TLD to configure DNS records 
+on your authoritative server, (i.e. dnsmasq, bind or PopuraDNS).
+
+## systemd unit
+
+Look for `meshnamed.service` in the source directory for a systemd unit file.
+
+## Configure dnsmasq as a primary DNS resolver with "meshname." support
+
+`/etc/dnsmasq.conf`
+
+    port=53
+    domain-needed
+    bogus-priv
+    server=/meshname/::1#53535
+    server=8.8.8.8
+
+## Custom top level domains (TLD) and subnet filtering
+
+meshnamed can be configured to resolve custom TLDs.
+To run meshnamed for TLD `.newmesh` with addresses in `fd00::/8` 
+set a flag `-networks newmesh=fd00::/8`.
+
+By default, in addition to `.meshname` it also resolves `.ygg` for IPv6 addresses in 
+`200::/7` subnet and `.cjd` for `fc00::/8`. 
+
+Requests are filtered by subnet validation. Request is ignored if a decoded 
+IPv6 address doesn't match the specified subnet for a TLD.

cmd/meshnamed/main.go

@@ -28,26 +28,22 @@ func parseNetworks(networksconf string) (map[string]*net.IPNet, error) {
 	return networks, nil
 }
 
-func loadConfig(s *meshname.MeshnameServer, confPath string) error {
-	dnsRecords, err := meshname.ParseConfigFile(confPath)
-	if err == nil {
-		s.ConfigureDNSRecords(dnsRecords)
-	}
-	return err
-}
-
 var (
-	genconf, subdomain, useconffile, listenAddr, networksconf string
-	debug, allowRemote                                        bool
+	listenAddr, networksconf string
+	meshipNetworksconf	 string
+	getName, getIP           string
+	acmePort		 string
+	debug, noMeshIP          bool
 )
 
 func init() {
-	flag.StringVar(&genconf, "genconf", "", "generate a new config for IP address")
-	flag.StringVar(&subdomain, "subdomain", "meshname.", "subdomain used to generate config")
-	flag.StringVar(&useconffile, "useconffile", "", "run daemon with a config file")
 	flag.StringVar(&listenAddr, "listenaddr", "[::1]:53535", "address to listen on")
-	flag.StringVar(&networksconf, "networks", "ygg=200::/7,cjd=fc00::/8,meshname=::/0", "TLD=subnet list separated by comma")
-	flag.BoolVar(&allowRemote, "allowremote", false, "allow remote queries from any IP address")
+	flag.StringVar(&networksconf, "networks", "ygg=200::/7,cjd=fc00::/8,meshname=::/0,popura=::/0", "TLD=subnet list separated by comma")
+	flag.StringVar(&meshipNetworksconf, "meshipnetworks", "meship=::/0", "TLD=subnet list separated by comma")
+	flag.BoolVar(&noMeshIP, "nomeship", false, "disable .meship resolver")
+	flag.StringVar(&getName, "getname", "", "convert IPv6 address to a name")
+	flag.StringVar(&getIP, "getip", "", "convert a name to IPv6 address")
+	flag.StringVar(&acmePort, "acmeport", "53536", "try alternative port for acme challenges")
 	flag.BoolVar(&debug, "debug", false, "enable debug logging")
 }
 
@@ -63,26 +59,30 @@ func main() {
 		logger.EnableLevel("debug")
 	}
 
-	if genconf != "" {
-		if conf, err := meshname.GenConf(genconf, subdomain); err == nil {
-			fmt.Println(conf)
-		} else {
-			logger.Errorln(err)
+	if getName != "" {
+		ip := net.ParseIP(getName)
+		if ip == nil {
+			logger.Fatal("Invalid IP address")
 		}
+		subDomain := meshname.DomainFromIP(&ip)
+		fmt.Println(subDomain)
+		return
+	} else if getIP != "" {
+		ip, err := meshname.IPFromDomain(&getIP)
+		if err != nil {
+			logger.Fatal(err)
+		}
+		fmt.Println(ip)
 		return
 	}
 
 	networks, err := parseNetworks(networksconf)
+	meshipNetworks, err := parseNetworks(meshipNetworksconf)
 	if err != nil {
 		logger.Fatalln(err)
 	}
 
-	s := meshname.New(logger, listenAddr, networks, allowRemote)
-	if useconffile != "" {
-		if err := loadConfig(s, useconffile); err != nil {
-			logger.Fatalln(err)
-		}
-	}
+	s := meshname.New(logger, listenAddr, networks, meshipNetworks, !noMeshIP, acmePort)
 
 	if err := s.Start(); err != nil {
 		logger.Fatal(err)
@@ -98,12 +98,6 @@ func main() {
 		select {
 		case <-c:
 			return
-		case <-r:
-			if useconffile != "" {
-				if err := loadConfig(s, useconffile); err != nil {
-					logger.Errorln(err)
-				}
-			}
 		}
 	}
 }

cmd/whoami/main.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"net/http"
+	"net"
+	"encoding/base32"
+	"strings"
+	"flag"
+	"log"
+)
+
+// define tld
+var tld = flag.String("tld", "mesh.cat", "The top level domain for our network")
+
+// domainFromIP derives a meshname subdomain for the authoritative DNS server address
+func domainFromIP(target net.IP) string {
+	host := strings.ToLower(base32.StdEncoding.EncodeToString(target)[0:26])
+	domain := host + "." + *tld
+	return domain
+}
+
+// handle HTTP requests
+func handler(w http.ResponseWriter, r *http.Request) {
+	// parse query parameters
+	params := r.URL.Query()
+	ipParam := params.Get("ip")
+	// check if the "ip" query parameter is set to "true"
+	showIP := ipParam == "true"
+	// get client's ip address
+	ip, port, err := net.SplitHostPort(r.RemoteAddr)
+	_, _ = port, err	
+	// check if we're behind a reverse proxy
+	xForwardedFor := r.Header.Get("X-Forwarded-For")
+	if xForwardedFor != "" {
+		ip = xForwardedFor
+	}
+	parsedIP := net.ParseIP(ip)
+	// return domain for IPv6 only
+	if parsedIP.To4() == nil {
+		if (showIP) {
+			w.Write([]byte(ip + "\n"))
+			log.Println(ip)
+		} else {
+			domain := domainFromIP(parsedIP)
+			w.Write([]byte(domain + "\n"))
+			log.Println(domain)
+		}
+	} else {
+		// set the response status code to 422
+		w.WriteHeader(http.StatusUnprocessableEntity)
+		w.Write([]byte("ipv4 not supported\n"))
+	}
+}
+
+func main() {
+	// define path
+	http.HandleFunc("/", handler)
+	// define ip address
+	address := flag.String("address", "[::0]", "The interface address to listen on")
+	// define port
+	port := flag.String("port", "8008", "The port to listen on")
+	// parse the command-line arguments
+	flag.Parse()
+	// construct listening address
+	listenAddr := *address + ":" + *port
+	print("Listening on address: ", listenAddr, "\n")
+	// start server
+	http.ListenAndServe(listenAddr, nil)
+}

contrib/gentoo/meshnamed-0.1.0.ebuild

@@ -0,0 +1,69 @@
+# Distributed under the terms of the GNU General Public License v2 
+
+EAPI="7"
+inherit go-module
+
+DESCRIPTION="Meshname, a universal naming system for all IPv6-based mesh networks, including CJDNS and Yggdrasil"
+HOMEPAGE="https://github.com/zhoreeq/meshname"
+
+EGO_SUM=(
+    "github.com/gologme/log v1.2.0"
+    "github.com/gologme/log v1.2.0/go.mod"
+    "github.com/miekg/dns v1.1.27"
+    "github.com/miekg/dns v1.1.27/go.mod"
+    "golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod"
+    "golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550"
+    "golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod"
+    "golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod"
+    "golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod"
+    "golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod"
+    "golang.org/x/net v0.0.0-20190923162816-aa69164e4478"
+    "golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod"
+    "golang.org/x/sync v0.0.0-20190423024810-112230192c58"
+    "golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod"
+    "golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod"
+    "golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod"
+    "golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe"
+    "golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod"
+    "golang.org/x/text v0.3.0/go.mod"
+    "golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod"
+    "golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod"
+)
+go-module_set_globals
+
+if [[ ${PV} != *9999* ]]; then
+    SRC_URI="https://github.com/zhoreeq/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+    KEYWORDS="amd64 ~amd64 x86 ~x86"
+else
+    EGIT_REPO_URI="https://github.com/zhoreeq/${PN}.git"
+    KEYWORDS="amd64 x86"
+fi
+SRC_URI+="${EGO_SUM_SRC_URI}"
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="systemd"
+
+DEPEND=">dev-lang/go-1.12"
+
+src_install() {
+    echo ""
+    exeinto /usr/bin
+    doexe meshnamed
+    dodoc README.md protocol.md
+
+    if use systemd ; then
+        systemd_newunit "${PN}d.service" ${PN}d.service
+    else
+        newinitd "${FILESDIR}/${PN}d.initd" ${PN}d
+    fi
+}
+
+pkg_postinst() {
+    elog "The meshname daemon will have to be started before use:"
+    if use systemd ; then
+        elog "  # systemctl start meshnamed"
+    else
+        elog "  # rc-service meshnamed start"
+    fi
+}

contrib/meshnamed.initd

@@ -0,0 +1,28 @@
+#!/sbin/openrc-run
+# Distributed under the terms of the GNU General Public License v2
+
+extra_started_commands="reload"
+command="/usr/bin/meshnamed"
+description="Distributed naming system for IPv6 mesh networks"
+pidfile="/run/meshnamed.pid"
+logfile="/var/run/meshnamed.log"
+start_stop_daemon_args="--user nobody --group nobody -listenaddr '[::1]:53535'"
+
+start() {
+    ebegin "Starting Distributed naming system for IPv6 mesh networks"
+    start-stop-daemon --start --exec "${command}" --pidfile "${pidfile}" --background \
+        --stdout "${logfile}" --stderr "${logfile}"
+    eend $?
+}
+
+stop() {
+    ebegin "Distributed naming system for IPv6 mesh networks"
+    start-stop-daemon --stop --exec "${command}" --pidfile "${pidfile}"
+    eend $?
+}
+
+reload() {
+    stop
+    sleep 5
+    start
+}

img/logo-maximum.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 878.03 168"><defs><style>.a{fill:#8cc63f;}.b{fill:#f2f2f2;}.c{fill:#006837;}</style></defs><title>logo-ver2</title><rect class="a" x="1" y="29" width="877.03" height="139"/><rect width="877.03" height="13"/><path d="M137.54,469.46V397.84L124.4,384.66H112.52L99.38,397.84v71.62H86.66V392.55l20.78-20.61h22l14.42,14.2,14.42-14.2h22.05l20.77,20.61v76.91H188.42V397.84l-13.14-13.18H163.41l-13.15,13.18v71.62Z" transform="translate(-65 -319)"/><path d="M277.89,469.46h-39L218.1,448.85v-56.3l20.78-20.61h39l20.77,20.56v22.26l-20.77,20.78H235.06V422.82H272.8l13.14-13.36V397.8L272.8,384.66H244l-13.15,13.18v45.72L244,457H272.8l19.5-19.71,8.91,9.11Z" transform="translate(-65 -319)"/><path d="M378,469.46H318.16V457h54.7L386,443.5V427.06H318.16V392.5l20.78-20.56h59.79v12.72H344L330.89,397.8v16.54h67.84v34.48Z" transform="translate(-65 -319)"/><path d="M415.69,469.46V326h12.72v53.78l8-7.84h39l20.78,20.61v76.91H483.53V397.84l-13.15-13.18H441.55l-13.14,13.18v71.62Z" transform="translate(-65 -319)"/><path class="b" d="M581.05,446V391.61l-13.15-10H539.07l-13.14,10V446H513.21V387.59L534,371.94h39l20.78,15.65V446Z" transform="translate(-65 -319)"/><path class="b" d="M670.51,470h-39l-20.77-20.75V426.8l20.77-20.75h42.83v12.79H636.59l-13.14,13.29v11.79l13.14,13.5h28.83L678.57,444V398l-13.15-13.26H627.69V371.94h42.82l20.78,20.72v56.62Z" transform="translate(-65 -319)"/><path class="b" d="M759.13,470V398L746,384.73H734.11L721,398v72H708.25V392.66L729,371.94h22.05l14.42,14.28,14.41-14.28H802l20.78,20.72V470H810V398l-13.14-13.25H785L771.85,398v72Z" transform="translate(-65 -319)"/><path class="b" d="M899.47,470h-39l-20.78-20.72V392.66l20.78-20.72h39l20.78,20.68V415l-20.78,20.89H856.65V423.1h37.74l13.14-13.43V398l-13.14-13.22H865.55L852.41,398v46l13.14,13.47h28.84l19.5-19.82,8.91,9.16Z" transform="translate(-65 -319)"/><path class="c" d="M513,469.15V457h1.67a2.12,2.12,0,0,1,2.39,2.17v7.95c0,1.25-1,2-2.55,2Zm1.08-.92h.43c1,0,1.47-.36,1.47-1.11v-7.95c0-.83-.45-1.25-1.31-1.25h-.59Z" transform="translate(-65 -319)"/><path class="c" d="M519.91,467.43v-8.71a2.06,2.06,0,0,1,4.06,0v8.71a2.06,2.06,0,0,1-4.06,0Zm1.08-8.71v8.71a1,1,0,0,0,1.9,0v-8.71a1,1,0,0,0-1.9,0Z" transform="translate(-65 -319)"/><path class="c" d="M526.42,467.43v-8.71a2.06,2.06,0,0,1,4.06,0v8.71a2.06,2.06,0,0,1-4.06,0Zm1.08-8.71v8.71a1,1,0,0,0,1.9,0v-8.71a1,1,0,0,0-1.9,0Z" transform="translate(-65 -319)"/><path class="c" d="M538.33,469.15h-1.08v-8l-1,3.16h-.9l-1-3.16v8h-1.08V457h1l1.53,5.09,1.53-5.09h1Z" transform="translate(-65 -319)"/><path class="c" d="M541.6,467.43V465.9h1.08v1.53a1,1,0,0,0,1.9,0v-2.17a2.56,2.56,0,0,0-1.33-2.13,3.44,3.44,0,0,1-1.65-2.82v-1.59a2.06,2.06,0,0,1,4.06,0v1.44h-1.08v-1.44a1,1,0,0,0-1.9,0v1.59a2.61,2.61,0,0,0,1.33,2.16,3.39,3.39,0,0,1,1.65,2.79v2.17a2.06,2.06,0,0,1-4.06,0Z" transform="translate(-65 -319)"/><path class="c" d="M548.93,469.15V457h1.67a2.12,2.12,0,0,1,2.39,2.17v7.95c0,1.25-1,2-2.55,2Zm1.08-.92h.43c1,0,1.47-.36,1.47-1.11v-7.95c0-.83-.45-1.25-1.31-1.25H550Z" transform="translate(-65 -319)"/><path class="c" d="M559.64,469.15l-.53-2.78h-2.43l-.55,2.78H555L557.44,457h.92l2.39,12.15Zm-2.77-3.7h2.06l-1-5.22Z" transform="translate(-65 -319)"/><path class="c" d="M566.22,457h1.1l-1.92,7.24v4.91h-1.08v-4.91L562.38,457h1.1l1.37,5.12Z" transform="translate(-65 -319)"/><path class="c" d="M575.28,469.15V457H577a2.12,2.12,0,0,1,2.39,2.17v7.95c0,1.25-1,2-2.55,2Zm1.08-.92h.43c1,0,1.47-.36,1.47-1.11v-7.95c0-.83-.45-1.25-1.31-1.25h-.59Z" transform="translate(-65 -319)"/><path class="c" d="M585.69,469.15l-2-7.55v7.55h-1.08V457h1l2,7.55V457h1.08v12.15Z" transform="translate(-65 -319)"/><path class="c" d="M589.94,467.43V465.9H591v1.53a1,1,0,0,0,1.9,0v-2.17a2.56,2.56,0,0,0-1.33-2.13,3.44,3.44,0,0,1-1.65-2.82v-1.59a2.06,2.06,0,0,1,4.06,0v1.44h-1.08v-1.44a1,1,0,0,0-1.9,0v1.59a2.61,2.61,0,0,0,1.33,2.16,3.39,3.39,0,0,1,1.65,2.79v2.17a2.06,2.06,0,0,1-4.06,0Z" transform="translate(-65 -319)"/></svg>

img/logo-medium.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 878.03 168"><defs><style>.a{fill:#8cc63f;}.b{fill:#f2f2f2;}.c{fill:#006837;}</style></defs><title>logo-ver1</title><rect class="a" x="1" y="29" width="877.03" height="139"/><rect width="877.03" height="13"/><path d="M137.54,469.46V397.84L124.4,384.66H112.52L99.38,397.84v71.62H86.66V392.55l20.78-20.61h22l14.42,14.2,14.42-14.2h22.05l20.77,20.61v76.91H188.42V397.84l-13.14-13.18H163.41l-13.15,13.18v71.62Z" transform="translate(-65 -319)"/><path d="M277.89,469.46h-39L218.1,448.85v-56.3l20.78-20.61h39l20.77,20.56v22.26l-20.77,20.78H235.06V422.82H272.8l13.14-13.36V397.8L272.8,384.66H244l-13.15,13.18v45.72L244,457H272.8l19.5-19.71,8.91,9.11Z" transform="translate(-65 -319)"/><path d="M378,469.46H318.16V457h54.7L386,443.5V427.06H318.16V392.5l20.78-20.56h59.79v12.72H344L330.89,397.8v16.54h67.84v34.48Z" transform="translate(-65 -319)"/><path d="M415.69,469.46V326h12.72v53.78l8-7.84h39l20.78,20.61v76.91H483.53V397.84l-13.15-13.18H441.55l-13.14,13.18v71.62Z" transform="translate(-65 -319)"/><path class="b" d="M581.05,446V391.61l-13.15-10H539.07l-13.14,10V446H513.21V387.59L534,371.94h39l20.78,15.65V446Z" transform="translate(-65 -319)"/><path class="b" d="M670.51,446h-39l-20.77-15.67v-17L631.5,397.7h42.83v9.66H636.59l-13.14,10v8.9l13.14,10.2h28.83l13.15-10.17V391.61l-13.15-10H627.69v-9.66h42.82l20.78,15.65v42.76Z" transform="translate(-65 -319)"/><path class="b" d="M759.13,446V391.61L746,381.6H734.11l-13.14,10V446H708.25V387.59L729,371.94h22.05l14.42,10.79,14.41-10.79H802l20.78,15.65V446H810V391.61l-13.14-10H785l-13.14,10V446Z" transform="translate(-65 -319)"/><path class="b" d="M899.47,446h-39l-20.78-15.65V387.59l20.78-15.65h39l20.78,15.62v16.9l-20.78,15.78H856.65v-9.66h37.74l13.14-10.14v-8.86l-13.14-10H865.55l-13.14,10v34.72l13.14,10.17h28.84l19.5-15,8.91,6.92Z" transform="translate(-65 -319)"/><path class="c" d="M513,469.15V457h8.41c7.39,0,12,.83,12,2.17v7.95c0,1.25-4.92,2-12.82,2Zm5.44-.92h2.15c4.92,0,7.39-.36,7.39-1.11v-7.95c0-.83-2.26-1.25-6.57-1.25h-3Z" transform="translate(-65 -319)"/><path class="c" d="M547.72,467.43v-8.71c0-.94,4.62-1.72,10.16-1.72s10.25.78,10.25,1.72v8.71c0,.94-4.61,1.72-10.25,1.72S547.72,468.37,547.72,467.43Zm5.44-8.71v8.71c0,.44,2.15.8,4.72.8s4.82-.36,4.82-.8v-8.71c0-.44-2.16-.8-4.82-.8S553.16,458.28,553.16,458.72Z" transform="translate(-65 -319)"/><path class="c" d="M580.44,467.43v-8.71c0-.94,4.62-1.72,10.15-1.72s10.26.78,10.26,1.72v8.71c0,.94-4.61,1.72-10.26,1.72S580.44,468.37,580.44,467.43Zm5.44-8.71v8.71c0,.44,2.15.8,4.71.8s4.83-.36,4.83-.8v-8.71c0-.44-2.16-.8-4.83-.8S585.88,458.28,585.88,458.72Z" transform="translate(-65 -319)"/><path class="c" d="M640.29,469.15h-5.43v-8L630,464.27h-4.51l-4.82-3.16v8h-5.44V457h4.82l7.7,5.09,7.69-5.09h4.82Z" transform="translate(-65 -319)"/><path class="c" d="M656.7,467.43V465.9h5.44v1.53c0,.44,2.15.8,4.72.8s4.82-.36,4.82-.8v-2.17c0-1.07-3.08-1.56-6.67-2.13-3.9-.63-8.31-1.34-8.31-2.81v-1.6c0-.94,4.62-1.72,10.16-1.72s10.25.78,10.25,1.72v1.44h-5.43v-1.44c0-.44-2.16-.8-4.82-.8s-4.72.36-4.72.8v1.6c0,1.07,3.08,1.57,6.66,2.15,3.9.62,8.31,1.32,8.31,2.79v2.17c0,.94-4.61,1.72-10.25,1.72S656.7,468.37,656.7,467.43Z" transform="translate(-65 -319)"/><path class="c" d="M693.52,469.15V457h8.41c7.39,0,12,.83,12,2.17v7.95c0,1.25-4.93,2-12.83,2Zm5.44-.92h2.15c4.93,0,7.39-.36,7.39-1.11v-7.95c0-.83-2.26-1.25-6.57-1.25h-3Z" transform="translate(-65 -319)"/><path class="c" d="M747.37,469.15l-2.66-2.78H732.5l-2.77,2.78h-5.54L736.29,457h4.62l12,12.15Zm-14-3.7h10.36l-5.23-5.22Z" transform="translate(-65 -319)"/><path class="c" d="M780.4,457h5.54l-9.64,7.24v4.91h-5.44v-4.91L761.12,457h5.53l6.88,5.12Z" transform="translate(-65 -319)"/><path class="c" d="M825.94,469.15V457h8.41c7.39,0,12,.83,12,2.17v7.95c0,1.25-4.92,2-12.82,2Zm5.44-.92h2.15c4.93,0,7.39-.36,7.39-1.11v-7.95c0-.83-2.26-1.25-6.57-1.25h-3Z" transform="translate(-65 -319)"/><path class="c" d="M878.25,469.15l-10-7.55v7.55h-5.44V457h4.93l10,7.55V457h5.44v12.15Z" transform="translate(-65 -319)"/><path class="c" d="M899.59,467.43V465.9H905v1.53c0,.44,2.16.8,4.72.8s4.82-.36,4.82-.8v-2.17c0-1.07-3.08-1.56-6.66-2.13-3.9-.63-8.31-1.34-8.31-2.81v-1.6c0-.94,4.61-1.72,10.15-1.72s10.26.78,10.26,1.72v1.44h-5.44v-1.44c0-.44-2.15-.8-4.82-.8s-4.72.36-4.72.8v1.6c0,1.07,3.08,1.57,6.67,2.15,3.9.62,8.31,1.32,8.31,2.79v2.17c0,.94-4.62,1.72-10.26,1.72S899.59,468.37,899.59,467.43Z" transform="translate(-65 -319)"/></svg>

img/logo-minimum.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 877.06 166"><defs><style>.a{fill:#8cc63f;}.b{fill:#f2f2f2;}</style></defs><title>logo</title><rect class="a" x="0.03" y="27" width="877.03" height="139"/><rect width="877.03" height="13"/><path d="M137.54,469.46V397.84L124.4,384.66H112.52L99.38,397.84v71.62H86.66V392.55l20.78-20.61h22l14.42,14.2,14.42-14.2h22.05l20.77,20.61v76.91H188.42V397.84l-13.14-13.18H163.41l-13.15,13.18v71.62Z" transform="translate(-65.97 -321)"/><path d="M277.89,469.46h-39L218.1,448.85v-56.3l20.78-20.61h39l20.77,20.56v22.26l-20.77,20.78H235.06V422.82H272.8l13.14-13.36V397.8L272.8,384.66H244l-13.15,13.18v45.72L244,457H272.8l19.5-19.71,8.91,9.11Z" transform="translate(-65.97 -321)"/><path d="M378,469.46H318.16V457h54.7L386,443.5V427.06H318.16V392.5l20.78-20.56h59.79v12.72H344L330.89,397.8v16.54h67.84v34.48Z" transform="translate(-65.97 -321)"/><path d="M415.69,469.46V326h12.72v53.78l8-7.84h39l20.78,20.61v76.91H483.53V397.84l-13.15-13.18H441.55l-13.14,13.18v71.62Z" transform="translate(-65.97 -321)"/><path class="b" d="M581.05,469.46V397.84L567.9,384.66H539.07l-13.14,13.18v71.62H513.21V392.55L534,371.94h39l20.78,20.61v76.91Z" transform="translate(-65.97 -321)"/><path class="b" d="M670.51,469.46h-39l-20.77-20.63V426.49l20.77-20.63h42.83v12.72H636.59L623.45,431.8v11.72L636.59,457h28.83l13.15-13.39V397.84l-13.15-13.18H627.69V371.94h42.82l20.78,20.61v56.3Z" transform="translate(-65.97 -321)"/><path class="b" d="M759.13,469.46V397.84L746,384.66H734.11L721,397.84v71.62H708.25V392.55L729,371.94h22.05l14.42,14.2,14.41-14.2H802l20.78,20.61v76.91H810V397.84l-13.14-13.18H785l-13.14,13.18v71.62Z" transform="translate(-65.97 -321)"/><path class="b" d="M899.47,469.46h-39l-20.78-20.61v-56.3l20.78-20.61h39l20.78,20.56v22.26l-20.78,20.78H856.65V422.82h37.74l13.14-13.36V397.8l-13.14-13.14H865.55l-13.14,13.18v45.72L865.55,457h28.84l19.5-19.71,8.91,9.11Z" transform="translate(-65.97 -321)"/></svg>

img/readme.md

@@ -0,0 +1 @@
+Логотип проекта, не облагаемый какими-либо лицензионными обязательствами.

meshnamed.service

@@ -9,7 +9,7 @@ Group=nogroup
 ProtectHome=true
 ProtectSystem=true
 SyslogIdentifier=meshnamed
-ExecStart=/usr/local/bin/meshnamed -listenaddr [::1]:53535 -useconffile /etc/meshnamed.conf
+ExecStart=/usr/local/bin/meshnamed -listenaddr [::1]:53535
 Restart=always
 TimeoutStopSec=5
 

pkg/meshname/config.go

@@ -1,52 +0,0 @@
-package meshname
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io/ioutil"
-	"net"
-
-	"github.com/miekg/dns"
-)
-
-func GenConf(target, zone string) (string, error) {
-	ip := net.ParseIP(target)
-	if ip == nil {
-		return "", errors.New("Invalid IP address")
-	}
-	subDomain := DomainFromIP(&ip)
-	selfRecord := fmt.Sprintf("\t\t\"%s.%s AAAA %s\"\n", subDomain, zone, target)
-	confString := fmt.Sprintf("{\n\t\"%s\":[\n%s\t]\n}", subDomain, selfRecord)
-
-	return confString, nil
-}
-
-// Load dnsRecords from a JSON file
-func ParseConfigFile(configPath string) (map[string][]dns.RR, error) {
-	conf, err := ioutil.ReadFile(configPath)
-	if err != nil {
-		return nil, err
-	}
-	var dat map[string][]string
-	if err := json.Unmarshal(conf, &dat); err == nil {
-		return ParseDNSRecordsMap(dat)
-	} else {
-		return nil, err
-	}
-}
-
-// ParseDNSRecordsMap takes a string map and returns a resource record map
-func ParseDNSRecordsMap(dnsRecordsMap map[string][]string) (map[string][]dns.RR, error) {
-	var dnsRecords = make(map[string][]dns.RR)
-	for subDomain, records := range dnsRecordsMap {
-		for _, r := range records {
-			if rr, err := dns.NewRR(r); err == nil {
-				dnsRecords[subDomain] = append(dnsRecords[subDomain], rr)
-			} else {
-				return nil, err
-			}
-		}
-	}
-	return dnsRecords, nil
-}

pkg/meshname/server.go

@@ -3,40 +3,40 @@ package meshname
 import (
 	"errors"
 	"net"
-	"strings"
 	"sync"
+	"strings"
 
 	"github.com/gologme/log"
 	"github.com/miekg/dns"
 )
 
 type MeshnameServer struct {
-	log        *log.Logger
-	listenAddr string
-	dnsClient  *dns.Client
-	dnsServer  *dns.Server
-	networks   map[string]*net.IPNet
-	allowRemote bool
+	log          	*log.Logger
+	listenAddr   	string
+	dnsClient    	*dns.Client
+	dnsServer    	*dns.Server
+	networks     	map[string]*net.IPNet
+	meshipNetworks	map[string]*net.IPNet
+	enableMeshIP 	bool
+	acmePort	string
 
-	dnsRecordsLock sync.RWMutex
-	dnsRecords     map[string][]dns.RR
-
-	startedLock sync.RWMutex
-	started     bool
+	startedLock 	sync.RWMutex
+	started     	bool
 }
 
 // New is a constructor for MeshnameServer
-func New(log *log.Logger, listenAddr string, networks map[string]*net.IPNet, allowRemote bool) *MeshnameServer {
+func New(log *log.Logger, listenAddr string, networks map[string]*net.IPNet, meshipNetworks map[string]*net.IPNet, enableMeshIP bool, acmePort string) *MeshnameServer {
 	dnsClient := new(dns.Client)
 	dnsClient.Timeout = 5000000000 // increased 5 seconds timeout
 
 	return &MeshnameServer{
-		log:        log,
-		listenAddr: listenAddr,
-		dnsRecords: make(map[string][]dns.RR),
-		networks:   networks,
-		dnsClient:  dnsClient,
-		allowRemote: allowRemote,
+		log:          	log,
+		listenAddr:   	listenAddr,
+		networks:     	networks,
+		meshipNetworks:	meshipNetworks,
+		dnsClient:    	dnsClient,
+		enableMeshIP: 	enableMeshIP,
+		acmePort: 	acmePort,
 	}
 }
 
@@ -59,15 +59,22 @@ func (s *MeshnameServer) Start() error {
 	if !s.started {
 		waitStarted := make(chan struct{})
 		s.dnsServer = &dns.Server{
-			Addr: s.listenAddr,
-			Net: "udp",
-			NotifyStartedFunc: func(){ close(waitStarted) },
+			Addr:              s.listenAddr,
+			Net:               "udp",
+			NotifyStartedFunc: func() { close(waitStarted) },
+		}
+		if s.enableMeshIP {
+			for mtld, subnet := range s.meshipNetworks {
+				dns.HandleFunc(mtld, s.handleMeshIPRequest)
+				s.log.Debugln("Handling as meship:", mtld, subnet)
+			}
 		}
 		for tld, subnet := range s.networks {
-			dns.HandleFunc(tld, s.handleRequest)
+			dns.HandleFunc(tld, s.handleMeshnameRequest)
 			s.log.Debugln("Handling:", tld, subnet)
 		}
-		go func(){
+
+		go func() {
 			if err := s.dnsServer.ListenAndServe(); err != nil {
 				s.log.Fatalln("MeshnameServer failed to start:", err)
 			}
@@ -82,63 +89,91 @@ func (s *MeshnameServer) Start() error {
 	}
 }
 
-func (s *MeshnameServer) ConfigureDNSRecords(dnsRecords map[string][]dns.RR) {
-	s.dnsRecordsLock.Lock()
-	s.dnsRecords = dnsRecords
-	s.dnsRecordsLock.Unlock()
-}
-
-func (s *MeshnameServer) handleRequest(w dns.ResponseWriter, r *dns.Msg) {
+func (s *MeshnameServer) handleMeshnameRequest(w dns.ResponseWriter, r *dns.Msg) {
 	var remoteLookups = make(map[string][]dns.Question)
 	m := new(dns.Msg)
 	m.SetReply(r)
-	s.log.Debugln(r.String())
 
-	s.dnsRecordsLock.RLock()
+	var tldList []string
+	for tld := range s.networks {
+		tldList = append(tldList, tld)
+	}
+
 	for _, q := range r.Question {
 		labels := dns.SplitDomainName(q.Name)
 		if len(labels) < 2 {
 			s.log.Debugln("Error: invalid domain requested")
 			continue
 		}
-		subDomain := labels[len(labels)-2]
 
-		if records, ok := s.dnsRecords[subDomain]; ok {
-			for _, rec := range records {
-				if h := rec.Header(); h.Name == q.Name && h.Rrtype == q.Qtype && h.Class == q.Qclass {
-					m.Answer = append(m.Answer, rec)
+		// process domain
+		input := strings.ToLower(strings.TrimSuffix(q.Name, "."))
+		subDomain := ""
+		tld := ""
+		for i := range tldList {
+			t := strings.ToLower(tldList[i])
+			if strings.HasSuffix(input, "."+t) {
+				// define tld
+				tld = t
+				domainParts := strings.SplitN(input, "."+t, 2)
+				firstPart := domainParts[0]
+				firstPartLabels := dns.SplitDomainName(firstPart)
+				// define hostname ("subDomain")
+				subDomain = firstPartLabels[len(firstPartLabels)-1]
+				if len(firstPartLabels) == 1 && q.Qtype == dns.TypeAAAA {
+					s.handleMeshIPRequest(w, r)
+					return
 				}
 			}
-		} else if s.isRemoteLookupAllowed(w.RemoteAddr()) {
-			// do remote lookups only for local clients
-			resolvedAddr, err := IPFromDomain(&subDomain)
-			if err != nil {
-				s.log.Debugln(err)
-				continue
-			}
-			// check subnet validity
-			tld := labels[len(labels)-1]
+		}
 
-			if subnet, ok := s.networks[tld]; ok && subnet.Contains(resolvedAddr) {
-				remoteLookups[resolvedAddr.String()] = append(remoteLookups[resolvedAddr.String()], q)
-			} else {
-				s.log.Debugln("Error: subnet doesn't match")
-			}
+		resolvedAddr, err := IPFromDomain(&subDomain)
+		if err != nil {
+			s.log.Debugln(err)
+			continue
+		}
+
+		// check subnet validity
+		if subnet, ok := s.networks[tld]; ok && subnet.Contains(resolvedAddr) {
+			remoteLookups[resolvedAddr.String()] = append(remoteLookups[resolvedAddr.String()], q)
+		} else {
+			s.log.Debugln("Error: subnet doesn't match")
 		}
 	}
-	s.dnsRecordsLock.RUnlock()
 
 	for remoteServer, questions := range remoteLookups {
 		rm := new(dns.Msg)
 		rm.RecursionDesired = true
 		rm.Question = questions
-		resp, _, err := s.dnsClient.Exchange(rm, "["+remoteServer+"]:53") // no retries
+		// always use lowercase internally among meshname instances
+		originalQuestionName := rm.Question[0].Name
+		// mocking spongebob dns encoding support
+		rm.Question[0].Name = strings.ToLower(originalQuestionName)
+		// add alternative port number
+		portNumbers := []string{"53"}
+		portNumbers = append([]string{s.acmePort}, portNumbers...)  // TODO: rename acmePort to alternativePort
+		// make request
+		err := error(nil)
+		for _, port := range portNumbers {
+			s.log.Debugln("trying port:"+port)
+			resp, _, err := s.dnsClient.Exchange(rm, "["+remoteServer+"]:"+port)
+			// if we had success we don't keep trying other ports
+			if err == nil {
+				if len(resp.Answer) > 0 {
+					// mocking spongebob dns encoding support
+					resp.Question[0].Name = originalQuestionName
+					resp.Answer[0].Header().Name = originalQuestionName
+				}
+				s.log.Debugln(resp.String())
+				m.Answer = append(m.Answer, resp.Answer...)
+				m.Ns = append(m.Ns, resp.Ns...)
+				m.Extra = append(m.Extra, resp.Extra...)
+				break
+			}
+		}
 		if err != nil {
 			s.log.Debugln(err)
-			continue
 		}
-		s.log.Debugln(resp.String())
-		m.Answer = append(m.Answer, resp.Answer...)
 	}
 
 	if err := w.WriteMsg(m); err != nil {
@@ -146,13 +181,27 @@ func (s *MeshnameServer) handleRequest(w dns.ResponseWriter, r *dns.Msg) {
 	}
 }
 
-func (s *MeshnameServer) isRemoteLookupAllowed(addr net.Addr) bool {
-	// TODO prefix whitelists ?
-	if s.allowRemote {
-		return true
+func (s *MeshnameServer) handleMeshIPRequest(w dns.ResponseWriter, r *dns.Msg) {
+	m := new(dns.Msg)
+	m.SetReply(r)
+	m.Authoritative = true
+
+	for _, q := range r.Question {
+		labels := dns.SplitDomainName(q.Name)
+		if resolvedAddr, err := IPFromDomain(&labels[0]); err == nil {
+			answer := new(dns.AAAA)
+			answer.Hdr = dns.RR_Header{Name: q.Name, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: 3600}
+			answer.AAAA = resolvedAddr
+			m.Answer = append(m.Answer, answer)
+			s.log.Debugln(m)
+		} else {
+			s.log.Debugln(err)
+		}
+	}
+
+	if err := w.WriteMsg(m); err != nil {
+		s.log.Debugln("Error writing response:", err)
 	}
-	ra := addr.String()
-	return strings.HasPrefix(ra, "[::1]:") || strings.HasPrefix(ra, "127.0.0.1:")
 }
 
 func (s *MeshnameServer) IsStarted() bool {

pkg/meshname/server_test.go

@@ -1,51 +0,0 @@
-package meshname
-
-import (
-	"net"
-	"os"
-	"strings"
-	"testing"
-
-	"github.com/gologme/log"
-	"github.com/miekg/dns"
-
-	"github.com/zhoreeq/meshname/pkg/meshname"
-)
-
-func TestServerLocalDomain(t *testing.T) {
-	bindAddr := "[::1]:54545"
-	log := log.New(os.Stdout, "", log.Flags())
-	yggIPNet := &net.IPNet{IP: net.ParseIP("200::"), Mask: net.CIDRMask(7, 128)}
-	networks := map[string]*net.IPNet{"meshname": yggIPNet}
-	allowRemote := false
-
-	ts := meshname.New(log, bindAddr, networks, allowRemote)
-
-	exampleConfig := make(map[string][]string)
-	exampleConfig["aiarnf2wpqjxkp6rhivuxbondy"] = append(exampleConfig["aiarnf2wpqjxkp6rhivuxbondy"],
-		"test.aiarnf2wpqjxkp6rhivuxbondy.meshname. AAAA 201:1697:567c:1375:3fd1:3a2b:4b85:cd1e")
-
-	if dnsRecords, err := meshname.ParseDNSRecordsMap(exampleConfig); err == nil {
-		ts.ConfigureDNSRecords(dnsRecords)
-	} else {
-		t.Fatalf("meshname: Failed to parse Meshname config: %s", err)
-	}
-
-	ts.Start()
-
-	tc := new(dns.Client)
-	m := new(dns.Msg)
-	m.SetQuestion("test.aiarnf2wpqjxkp6rhivuxbondy.meshname.", dns.TypeAAAA)
-	resp, _, err := tc.Exchange(m, bindAddr)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(resp.Answer) != 1 {
-		t.Fatalf("Invalid response: %s", resp.String())
-	}
-	if !strings.Contains(resp.Answer[0].String(), "201:1697:567c:1375:3fd1:3a2b:4b85:cd1e") {
-		t.Fatalf("Invalid IP in response: %s", resp.Answer[0].String())
-	}
-
-	ts.Stop()
-}