Merge remote-tracking branch 'github/master'

Makefile

@@ -1,10 +1,19 @@
-SUDO=GOPATH=$(shell go env GOPATH) sudo --preserve-env=GOPATH
+SUDO=GOPATH=$(shell go env GOPATH) sudo --preserve-env=GOPATH --preserve-env=PATH --preserve-env=HOME
 
-PKGS := github.com/rtr7/router7/cmd/... \
-	github.com/gokrazy/breakglass \
+PKGS := github.com/gokrazy/breakglass \
 	github.com/gokrazy/timestamps \
-	github.com/stapelberg/zkj-nas-tools/wolgw \
-	github.com/gokrazy/gdns
+	github.com/gokrazy/gdns \
+	github.com/gokrazy/serial-busybox \
+	github.com/prometheus/node_exporter \
+	github.com/gokrazy/fbstatus \
+	github.com/gokrazy/iptables \
+	github.com/gokrazy/nsenter \
+	github.com/gokrazy/podman \
+	github.com/greenpau/cni-plugins/cmd/cni-nftables-portmap \
+	github.com/greenpau/cni-plugins/cmd/cni-nftables-firewall \
+	github.com/gokrazy/syslogd/cmd/gokr-syslogd \
+	github.com/gokrazy/stat/cmd/... \
+	github.com/rtr7/router7/cmd/...
 
 build:
 	mkdir -p result
@@ -29,14 +38,13 @@ endif
 		-overwrite_boot=${DIR}/boot.img \
 		-overwrite_root=${DIR}/root.img \
 		-overwrite_mbr=${DIR}/mbr.img \
-		-serial_console=ttyS0,115200n8 \
+		-serial_console=ttyS0,115200 \
 		-hostname=router7 \
 		${PKGS}
 
 recover: #test
-	go install \
-		github.com/gokrazy/tools/cmd/gokr-packer@lastet \
-		github.com/rtr7/tools/cmd/rtr7-recover@latest
+	go install github.com/gokrazy/tools/cmd/gokr-packer@latest
+	go install github.com/rtr7/tools/cmd/rtr7-recover@latest
 	GOARCH=amd64 gokr-packer \
 		-gokrazy_pkgs=github.com/gokrazy/gokrazy/cmd/ntp,github.com/gokrazy/gokrazy/cmd/randomd \
 		-kernel_package=github.com/rtr7/kernel \
@@ -47,16 +55,19 @@ recover: #test
 		-serial_console=ttyS0,115200n8 \
 		-hostname=router7 \
 		${PKGS}
-	${SUDO} /home/michael/go/bin/rtr7-recover \
-		-boot=/tmp/recovery/boot.img \
-		-root=/tmp/recovery/root.img
+	${SUDO} $(which rtr7-recover) \
+		--boot /tmp/recovery/boot.img \
+		--root /tmp/recovery/root.img \
+		--mbr /tmp/recovery/mbr.img \
+		--hostname router7 \
+		--interface enp0s31f6
 
 test:
 	# simulate recover (quick, for early for feedback)
-	go build ${PKGS} github.com/rtr7/tools/cmd/...
-	go test -count=1 -v -race github.com/rtr7/router7/internal/...
+	go build -mod=mod ${PKGS} github.com/rtr7/tools/cmd/...
+	go test -mod=mod -count=1 -v -race github.com/rtr7/router7/internal/...
 	# integration tests
-	${SUDO} $(shell go env GOROOT)/bin/go test -count=1 -v -race github.com/rtr7/router7/...
+	${SUDO} $(shell go env GOROOT)/bin/go test -buildvcs=false -count=1 -v -race github.com/rtr7/router7/...
 
 testdhcp:
 	go test -v -coverprofile=/tmp/cov github.com/rtr7/router7/internal/dhcp4d
@@ -70,15 +81,17 @@ strace:
 	(cd /tmp && go test -c router7) && ${SUDO} strace -f -o /tmp/st -s 2048 /tmp/router7.test -test.v #-test.race
 
 update:
-	rtr7-safe-update -build_command='make -C ~/go/src/github.com/rtr7/router7 image DIR=$$GOKR_DIR'
+	rtr7-safe-update -build_command='make image DIR=$$GOKR_DIR'
 
-# sudo ip link add link enp0s31f6 name macvtap0 type macvtap
+# sudo ip link add link enp3s0 name macvtap0 type macvtap
 # sudo ip link set macvtap0 address 52:55:00:d1:55:03 up
+# sudo chown $USER /dev/tap*
 #
 # TODO: use veth pairs for router7’s lan0?
 # e.g. get a network namespace to talk through router7
 # ip link add dev veth1 type veth peer name veth2
 qemu:
+	mkdir -p /tmp/router7-qemu
 	GOARCH=amd64 gokr-packer \
 		-gokrazy_pkgs=github.com/gokrazy/gokrazy/cmd/ntp,github.com/gokrazy/gokrazy/cmd/randomd \
 		-hostname=qemu-router7 \
@@ -98,6 +111,7 @@ qemu:
 		-device virtio-net-pci,netdev=uplink,mac=52:55:00:d1:55:03 \
 		-device virtio-net-pci,id=lan,mac=52:55:00:d1:55:04 \
 		-device i6300esb,id=watchdog0 -watchdog-action reset \
+		-bios /usr/share/edk2-ovmf/x64/OVMF_CODE.fd \
 		-smp 8 \
 		-machine accel=kvm \
 		-m 4096 \

cmd/diagd/diagd.go

@@ -80,44 +80,53 @@ func firstError(re *diag.EvalResult) string {
 	return ""
 }
 
+func graph(uplink string, ipv6 bool) *diag.Monitor {
+	const ip6allrouters = "ff02::2" // no /etc/hosts on gokrazy
+	graph := diag.Link(uplink).
+		Then(diag.DHCPv4().
+			Then(diag.Ping4Gateway().
+				Then(diag.TCP4("www.google.com:80"))))
+
+	if ipv6 {
+		graph = graph.
+			Then(diag.DHCPv6().
+				Then(diag.TCP6("lan0", "www.google.com:80"))).
+			Then(diag.RouterAdvertisments(uplink).
+				Then(diag.Ping6Gateway().
+					Then(diag.TCP6(uplink, "www.google.com:80")))).
+			Then(diag.Ping6("", ip6allrouters+"%"+uplink))
+	}
+	return diag.NewMonitor(graph)
+}
+
 func logic() error {
 	var (
 		ifname = flag.String("interface",
 			"uplink0",
 			"interface name to query")
+		ipv6 = flag.Bool("ipv6",
+			true,
+			"whether to expect IPv6 connectivity in health.json")
 		perm = flag.String("perm",
 			"/perm",
 			"path to replace /perm")
 	)
-	const (
-		ip6allrouters = "ff02::2" // no /etc/hosts on gokrazy
-	)
 	flag.Parse()
 	uplink := *ifname
 	diag.Perm = *perm
-	m := diag.NewMonitor(diag.Link(uplink).
-		Then(diag.DHCPv4().
-			Then(diag.Ping4Gateway().
-				Then(diag.Ping4("google.com").
-					Then(diag.TCP4("www.google.com:80"))))).
-		Then(diag.DHCPv6().
-			Then(diag.Ping6("lan0", "google.com"))).
-		Then(diag.RouterAdvertisments(uplink).
-			Then(diag.Ping6Gateway().
-				Then(diag.Ping6(uplink, "google.com").
-					Then(diag.TCP6("www.google.com:80"))))).
-		Then(diag.Ping6("", ip6allrouters+"%"+uplink)))
+	mHumanReadable := graph(uplink, true) // for display only
+	mJSON := graph(uplink, *ipv6)         // for updates
 	var mu sync.Mutex
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		mu.Lock()
-		re := m.Evaluate()
+		re := mHumanReadable.Evaluate()
 		mu.Unlock()
 		fmt.Fprintf(w, `<!DOCTYPE html><style type="text/css">ul { list-style-type: none; }</style><ul>`)
 		dump(0, w, re)
 	})
 	http.HandleFunc("/health.json", func(w http.ResponseWriter, r *http.Request) {
 		mu.Lock()
-		re := m.Evaluate()
+		re := mJSON.Evaluate()
 		mu.Unlock()
 		reply := struct {
 			FirstError string `json:"first_error"`

docs/index.html

@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html>  <head>
-	<meta name="generator" content="Hugo 0.71.0-DEV" />
+	<meta name="generator" content="Hugo 0.106.0-DEV">
     
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
@@ -44,7 +44,7 @@
 </nav>
 <h1 id="router7">router7</h1>
 <p>router7 is a pure-Go implementation of a small home internet router. It comes with all the services required to make a <a href="https://www.init7.net/en/internet/fiber7/">fiber7 internet connection</a> work (DHCPv4, DHCPv6, DNS, etc.).</p>
-<p>Note that this project should be considered a (working!) tech demo. Feature requests will likely not be implemented, and see <a href="CONTRIBUTING.md">CONTRIBUTING.md</a> for details about which contributions are welcome.</p>
+<p>Note that this project should be considered a (working!) tech demo. Feature requests will likely not be implemented, and see <a href="https://github.com/rtr7/router7/blob/master/CONTRIBUTING.md">CONTRIBUTING.md</a> for details about which contributions are welcome.</p>
 <h2 id="motivation">Motivation</h2>
 <p>Before starting router7, I was using the <a href="https://omnia.turris.cz/en/">Turris Omnia</a> router running OpenWrt. That worked fine up until May 2018, when an automated update pulled in a new version of <a href="https://git.openwrt.org/?p=project/odhcp6c.git;a=shortlog">odhcp6c</a>, OpenWrt’s DHCPv6 client. That version is incompatible with fiber7’s DHCP server setup (I think there are shortcomings on both sides).</p>
 <p>It was not only quicker to develop my own router than to wait for either side to resolve the issue, but it was also a lot of fun and allowed me to really tailor my router to my needs, experimenting with a bunch of interesting ideas I had.</p>

docs/installation/index.html

@@ -52,24 +52,45 @@
 <li>Press <code>s</code> to save configuration and exit</li>
 </ul>
 <p>Connect a network cable on <code>net0</code>, the port closest to the serial console port:</p>
-<p><img src="https://github.com/rtr7/router7/raw/master/devsetup.jpg"
+<p><img src="https://raw.githubusercontent.com/rtr7/router7/master/devsetup.jpg"
 width="800" alt="router7 development setup"></p>
-<p>Next, build a router7 image:</p>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-shell" data-lang="shell">go get -u github.com/gokrazy/tools/cmd/gokr-packer github.com/rtr7/tools/cmd/...
-go get -u -d github.com/rtr7/router7
-mkdir /tmp/recovery
-GOARCH<span style="color:#f92672">=</span>amd64 gokr-packer <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-hostname<span style="color:#f92672">=</span>router7 <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-overwrite_boot<span style="color:#f92672">=</span>/tmp/recovery/boot.img <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-overwrite_mbr<span style="color:#f92672">=</span>/tmp/recovery/mbr.img <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-overwrite_root<span style="color:#f92672">=</span>/tmp/recovery/root.img <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-eeprom_package<span style="color:#f92672">=</span> <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-kernel_package<span style="color:#f92672">=</span>github.com/rtr7/kernel <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-firmware_package<span style="color:#f92672">=</span>github.com/rtr7/kernel <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-gokrazy_pkgs<span style="color:#f92672">=</span>github.com/gokrazy/gokrazy/cmd/ntp <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	-serial_console<span style="color:#f92672">=</span>ttyS0,115200n8 <span style="color:#ae81ff">\
-</span><span style="color:#ae81ff"></span>	github.com/rtr7/router7/cmd/...
-</code></pre></div><p>Run <code>rtr7-recover -boot=/tmp/recovery/boot.img -mbr=/tmp/recovery/mbr.img -root=/tmp/recovery/root.img</code> to:</p>
+<p>Next, create a router7 gokrazy instance (see <a href="https://gokrazy.org/quickstart/">gokrazy
+quickstart</a> if you’re unfamiliar with gokrazy):</p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>go install github.com/gokrazy/tools/cmd/gok@main
+</span></span><span style="display:flex;"><span>go install github.com/rtr7/tools/cmd/...@latest
+</span></span><span style="display:flex;"><span>mkdir /tmp/recovery
+</span></span><span style="display:flex;"><span>gok -i router7 new
+</span></span><span style="display:flex;"><span>gok -i router7 edit
+</span></span></code></pre></div><p>Change the config until you have the following fields set:</p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-json" data-lang="json"><span style="display:flex;"><span>{
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;Hostname&#34;</span>: <span style="color:#e6db74">&#34;router7&#34;</span>,
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;Packages&#34;</span>: [
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/fbstatus&#34;</span>,
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/hello&#34;</span>,
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/serial-busybox&#34;</span>,
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/breakglass&#34;</span>
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/rtr7/router7/cmd/...&#34;</span>
+</span></span><span style="display:flex;"><span>    ],
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;SerialConsole&#34;</span>: <span style="color:#e6db74">&#34;ttyS0,115200&#34;</span>,
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;GokrazyPackages&#34;</span>: [
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/gokrazy/cmd/ntp&#34;</span>,
+</span></span><span style="display:flex;"><span>        <span style="color:#e6db74">&#34;github.com/gokrazy/gokrazy/cmd/randomd&#34;</span>
+</span></span><span style="display:flex;"><span>    ],
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;KernelPackage&#34;</span>: <span style="color:#e6db74">&#34;github.com/rtr7/kernel&#34;</span>,
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;FirmwarePackage&#34;</span>: <span style="color:#e6db74">&#34;github.com/rtr7/kernel&#34;</span>,
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;EEPROMPackage&#34;</span>: <span style="color:#e6db74">&#34;&#34;</span>
+</span></span><span style="display:flex;"><span>}
+</span></span></code></pre></div><p>Then, build an image:</p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>GOARCH<span style="color:#f92672">=</span>amd64 gok -i router7 overwrite <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>    --boot /tmp/recovery/boot.img <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>	--mbr /tmp/recovery/mbr.img <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>	--root /tmp/recovery/root.img
+</span></span></code></pre></div><p>And serve the image for netboot installation:</p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>rtr7-recover <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>    --boot /tmp/recovery/boot.img <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>    --mbr /tmp/recovery/mbr.img <span style="color:#ae81ff">\
+</span></span></span><span style="display:flex;"><span><span style="color:#ae81ff"></span>    --root /tmp/recovery/root.img
+</span></span></code></pre></div><p>Specifically, <code>rtr7-recover</code>:</p>
 <ul>
 <li>trigger a reset <a href="#rebootor">if a Teensy with the rebootor firmware is attached</a></li>
 <li>serve a DHCP lease to all clients which request PXE boot (i.e., your apu2c4)</li>
@@ -88,41 +109,40 @@ GOARCH<span style="color:#f92672">=</span>amd64 gokr-packer <span style="color:#
 <h3 id="interfaces">Interfaces</h3>
 <p>The <code>/perm/interfaces.json</code> configuration file will be <a href="https://github.com/rtr7/tools/blob/57c2cdc3b629d2fbd13564ae37f6282f6ee8427f/cmd/rtr7-recovery-init/recoveryinit.go#L320">automatically created</a> if it is not present when you run the first recovery.</p>
 <p>Example:</p>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-json" data-lang="json">{
-    <span style="color:#f92672">&#34;interfaces&#34;</span>: [
-        {
-            <span style="color:#f92672">&#34;hardware_addr&#34;</span>: <span style="color:#e6db74">&#34;12:34:56:78:9a:b0&#34;</span>,
-            <span style="color:#f92672">&#34;name&#34;</span>: <span style="color:#e6db74">&#34;lan0&#34;</span>,
-            <span style="color:#f92672">&#34;addr&#34;</span>: <span style="color:#e6db74">&#34;192.168.0.1/24&#34;</span>
-        },
-        {
-            <span style="color:#f92672">&#34;hardware_addr&#34;</span>: <span style="color:#e6db74">&#34;12:34:56:78:9a:b2&#34;</span>,
-            <span style="color:#f92672">&#34;name&#34;</span>: <span style="color:#e6db74">&#34;uplink0&#34;</span>
-        }
-    ]
-}
-</code></pre></div><p>Schema: see <a href="https://github.com/rtr7/router7/blob/f86e20be5305fc0e7e77421e0f2abde98a84f2a7/internal/netconfig/netconfig.go#L183"><code>InterfaceConfig</code></a></p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-json" data-lang="json"><span style="display:flex;"><span>{
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;interfaces&#34;</span>: [
+</span></span><span style="display:flex;"><span>        {
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;hardware_addr&#34;</span>: <span style="color:#e6db74">&#34;12:34:56:78:9a:b0&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;name&#34;</span>: <span style="color:#e6db74">&#34;lan0&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;addr&#34;</span>: <span style="color:#e6db74">&#34;192.168.0.1/24&#34;</span>
+</span></span><span style="display:flex;"><span>        },
+</span></span><span style="display:flex;"><span>        {
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;hardware_addr&#34;</span>: <span style="color:#e6db74">&#34;12:34:56:78:9a:b2&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;name&#34;</span>: <span style="color:#e6db74">&#34;uplink0&#34;</span>
+</span></span><span style="display:flex;"><span>        }
+</span></span><span style="display:flex;"><span>    ]
+</span></span><span style="display:flex;"><span>}
+</span></span></code></pre></div><p>Schema: see <a href="https://github.com/rtr7/router7/blob/f86e20be5305fc0e7e77421e0f2abde98a84f2a7/internal/netconfig/netconfig.go#L183"><code>InterfaceConfig</code></a></p>
 <h3 id="port-forwarding">Port Forwarding</h3>
 <p>The <code>/perm/portforwardings.json</code> configuration file can be created to define port forwarding rules.</p>
 <p>Example:</p>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-json" data-lang="json">{
-    <span style="color:#f92672">&#34;forwardings&#34;</span>: [
-        {
-            <span style="color:#f92672">&#34;proto&#34;</span>: <span style="color:#e6db74">&#34;tcp&#34;</span>,
-            <span style="color:#f92672">&#34;port&#34;</span>: <span style="color:#e6db74">&#34;22&#34;</span>,
-            <span style="color:#f92672">&#34;dest_addr&#34;</span>: <span style="color:#e6db74">&#34;10.0.0.10&#34;</span>,
-            <span style="color:#f92672">&#34;dest_port&#34;</span>: <span style="color:#e6db74">&#34;22&#34;</span>
-        },
-        {
-            <span style="color:#f92672">&#34;proto&#34;</span>: <span style="color:#e6db74">&#34;tcp&#34;</span>,
-            <span style="color:#f92672">&#34;port&#34;</span>: <span style="color:#e6db74">&#34;80&#34;</span>,
-            <span style="color:#f92672">&#34;dest_addr&#34;</span>: <span style="color:#e6db74">&#34;10.0.0.10&#34;</span>,
-            <span style="color:#f92672">&#34;dest_port&#34;</span>: <span style="color:#e6db74">&#34;80&#34;</span>
-        }
-    ]
-}
-</code></pre></div><p>Schema: see <a href="https://github.com/rtr7/router7/blob/f86e20be5305fc0e7e77421e0f2abde98a84f2a7/internal/netconfig/netconfig.go#L431"><code>portForwardings</code></a></p>
-<p>Please be aware that Hairpinning is currently not supported (see issue <a href="https://github.com/rtr7/router7/issues/53%5D">#53 Support for Hairpinning</a>)</p>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-json" data-lang="json"><span style="display:flex;"><span>{
+</span></span><span style="display:flex;"><span>    <span style="color:#f92672">&#34;forwardings&#34;</span>: [
+</span></span><span style="display:flex;"><span>        {
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;proto&#34;</span>: <span style="color:#e6db74">&#34;tcp&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;port&#34;</span>: <span style="color:#e6db74">&#34;22&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;dest_addr&#34;</span>: <span style="color:#e6db74">&#34;10.0.0.10&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;dest_port&#34;</span>: <span style="color:#e6db74">&#34;22&#34;</span>
+</span></span><span style="display:flex;"><span>        },
+</span></span><span style="display:flex;"><span>        {
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;proto&#34;</span>: <span style="color:#e6db74">&#34;tcp&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;port&#34;</span>: <span style="color:#e6db74">&#34;80&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;dest_addr&#34;</span>: <span style="color:#e6db74">&#34;10.0.0.10&#34;</span>,
+</span></span><span style="display:flex;"><span>            <span style="color:#f92672">&#34;dest_port&#34;</span>: <span style="color:#e6db74">&#34;80&#34;</span>
+</span></span><span style="display:flex;"><span>        }
+</span></span><span style="display:flex;"><span>    ]
+</span></span><span style="display:flex;"><span>}
+</span></span></code></pre></div><p>Schema: see <a href="https://github.com/rtr7/router7/blob/f86e20be5305fc0e7e77421e0f2abde98a84f2a7/internal/netconfig/netconfig.go#L431"><code>portForwardings</code></a></p>
 <h2 id="updates">Updates</h2>
 <p>Run e.g. <code>rtr7-safe-update -updates_dir=$HOME/router7/updates</code> to:</p>
 <ul>
@@ -137,9 +157,9 @@ GOARCH<span style="color:#f92672">=</span>amd64 gokr-packer <span style="color:#
 <p>Given <code>rtr7-safe-update</code>’s safeguards, manual recovery should rarely be required.</p>
 <p>To manually roll back to an older image, invoke <code>rtr7-safe-update</code> via the
 <code>recover.bash</code> script in the image directory underneath <code>-updates_dir</code>, e.g.:</p>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-shell" data-lang="shell">% cd ~/router7/updates/2018-07-03T17:33:52+02:00
-% ./recover.bash
-</code></pre></div><h2 id="rebootor">Teensy rebootor</h2>
+<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>% cd ~/router7/updates/2018-07-03T17:33:52+02:00
+</span></span><span style="display:flex;"><span>% ./recover.bash
+</span></span></code></pre></div><h2 id="rebootor">Teensy rebootor</h2>
 <p>The cheap and widely-available <a href="https://www.pjrc.com/store/teensypp.html">Teensy++ USB development board</a> comes with a firmware called rebootor, which is used by the <a href="https://www.pjrc.com/teensy/loader_cli.html"><code>teensy_loader_cli</code></a> program to perform hard resets.</p>
 <p>This setup can be used to programmatically reset the apu2c4 (from <code>rtr7-recover</code>) by connecting the Teensy++ to the <a href="http://pcengines.ch/pdf/apu2.pdf">apu2c4’s reset pins</a>:</p>
 <ul>

docs/sitemap.xml

@@ -1,17 +1,11 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
   xmlns:xhtml="http://www.w3.org/1999/xhtml">
-  
   <url>
     <loc>https://router7.org/</loc>
-  </url>
-  
-  <url>
+  </url><url>
     <loc>https://router7.org/architecture/</loc>
-  </url>
-  
-  <url>
+  </url><url>
     <loc>https://router7.org/installation/</loc>
   </url>
-  
 </urlset>

go.mod

@@ -1,39 +1,62 @@
 module github.com/rtr7/router7
 
-go 1.18
+go 1.20
 
 require (
 	github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883
 	github.com/digineo/go-ping v1.0.1
-	github.com/eclipse/paho.mqtt.golang v1.3.4
-	github.com/gokrazy/gokrazy v0.0.0-20220221222403-63413ccafb12
-	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/google/go-cmp v0.5.7
+	github.com/eclipse/paho.mqtt.golang v1.4.1
+	github.com/gokrazy/gokrazy v0.0.0-20230219142620-73892ad2388a
+	github.com/google/go-cmp v0.5.9
 	github.com/google/gopacket v1.1.19
-	github.com/google/nftables v0.0.0-20210514154851-a285acebcad3
+	github.com/google/nftables v0.0.0-20220830201608-64ce05980f1e
 	github.com/google/renameio v1.0.1
-	github.com/insomniacslk/dhcp v0.0.0-20210528123148-fb4eaaa00ad2
+	github.com/insomniacslk/dhcp v0.0.0-20220822114210-de18a9d48e84
 	github.com/jpillora/backoff v1.0.0
-	github.com/kr/pretty v0.2.1 // indirect
 	github.com/krolaw/dhcp4 v0.0.0-20190909130307-a50d88189771
 	github.com/libdns/cloudflare v0.1.0
-	github.com/libdns/libdns v0.2.0
+	github.com/libdns/libdns v0.2.1
+	github.com/mdlayher/ethtool v0.0.0-20220830195143-0e16326d06d1
 	github.com/mdlayher/ndp v0.10.0
-	github.com/mdlayher/netlink v1.6.0 // indirect
-	github.com/mdlayher/packet v1.0.0
-	github.com/miekg/dns v1.1.42
-	github.com/prometheus/client_golang v1.10.0
-	github.com/prometheus/common v0.25.0 // indirect
-	github.com/rtr7/dhcp4 v0.0.0-20220221221838-73f36ca31019
-	github.com/sergi/go-diff v1.1.0 // indirect
-	github.com/u-root/uio v0.0.0-20210528151154-e40b768296a7 // indirect
-	github.com/vishvananda/netlink v1.1.1-0.20200221165523-c79a4b7b4066
-	github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect
-	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
-	golang.org/x/net v0.0.0-20220225172249-27dd8689420f
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/sys v0.0.0-20220317061510-51cd9980dadf
-	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
-	golang.zx2c4.com/wireguard v0.0.20201118 // indirect
-	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210506160403-92e472f520a5
+	github.com/mdlayher/packet v1.1.1
+	github.com/miekg/dns v1.1.50
+	github.com/prometheus/client_golang v1.14.0
+	github.com/rtr7/dhcp4 v0.0.0-20220302171438-18c84d089b46
+	github.com/vishvananda/netlink v1.2.1-beta.2
+	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74
+	golang.org/x/crypto v0.17.0
+	golang.org/x/net v0.17.0
+	golang.org/x/sync v0.1.0
+	golang.org/x/sys v0.15.0
+	golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9
+	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20220504211119-3d4a969bb56b
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/digineo/go-logwrap v0.0.0-20181106161722-a178c58ea3f0 // indirect
+	github.com/gokrazy/internal v0.0.0-20230211171410-9608422911d0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/renameio/v2 v2.0.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/josharian/native v1.0.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/mdlayher/genetlink v1.2.0 // indirect
+	github.com/mdlayher/netlink v1.7.0 // indirect
+	github.com/mdlayher/socket v0.4.0 // indirect
+	github.com/mdlayher/watchdog v0.0.0-20221003142519-49be0df7b3b5 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/u-root/uio v0.0.0-20210528114334-82958018845c // indirect
+	gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f // indirect
+	golang.org/x/mod v0.5.1 // indirect
+	golang.org/x/tools v0.1.8 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.zx2c4.com/wireguard v0.0.0-20220407013110-ef5c587f782d // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,172 +1,166 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
+cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
+cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
+cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
+cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
+cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
+cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
+cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
+cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
+cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
+cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
-github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
-github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
-github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/anatol/vmtest v0.0.0-20210623221036-69fc760fbd4b/go.mod h1:l08qtd2JHjoYWIROnbKoKCUqIbe54ndrXwDdyiDfq30=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883 h1:bvNMNQO63//z+xNgfBlViaCIJKLlCJ6/fmUseuG0wVQ=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
-github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
-github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
-github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
-github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
-github.com/beevik/ntp v0.2.0/go.mod h1:hIHWr+l3+/clUnF44zdK+CWW7fO8dR5cIylAQ76NRpg=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
-github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
-github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
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-gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
-gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-rsc.io/goversion v1.2.0 h1:SPn+NLTiAG7w30IRK/DKp1BjvpWabYgxlLp/+kx5J8w=
-rsc.io/goversion v1.2.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
-sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

integration/netconfig/netconfig_test.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/rtr7/router7/internal/netconfig"
 	"github.com/vishvananda/netlink"
+	"github.com/vishvananda/netns"
 
 	"github.com/andreyvit/diff"
 	"github.com/google/go-cmp/cmp"
@@ -45,11 +46,21 @@ const goldenInterfaces = `
       "hardware_addr": "02:73:53:00:b0:0c",
       "spoof_hardware_addr": "02:73:53:00:b0:aa",
       "name": "lan0",
-      "addr": "192.168.42.1/24"
+      "addr": "192.168.42.1/24",
+      "mtu": 1492
     },
     {
       "name": "wg0",
-      "addr": "fe80::1/64"
+      "addr": "fe80::1/64",
+      "extra_addrs": [
+        "10.22.100.1/24"
+      ],
+      "extra_routes": [
+        {
+          "destination": "2a02:168:4a00:22::/64",
+          "gateway": "fe80::2"
+        }
+      ]
     }
   ]
 }
@@ -239,19 +250,24 @@ const goldenDhcp6 = `
 }
 `
 
-type wgLink struct{}
+type wgLink struct {
+	ns int
+}
 
 func (w *wgLink) Type() string { return "wireguard" }
 
 func (w *wgLink) Attrs() *netlink.LinkAttrs {
 	attrs := netlink.NewLinkAttrs()
 	attrs.Name = "wg5"
+	if w.ns > 0 {
+		attrs.Namespace = netlink.NsFd(w.ns)
+	}
 	return &attrs
 }
 
 var wireGuardAvailable = func() bool {
 	// The wg tool must also be available for our test to succeed:
-	if _, err := exec.LookPath("wg"); err == nil {
+	if _, err := exec.LookPath("wg"); err != nil {
 		return false
 	}
 
@@ -265,7 +281,18 @@ var wireGuardAvailable = func() bool {
 	}
 	defer exec.Command("ip", "netns", "delete", ns).Run()
 
-	return netlink.LinkAdd(&wgLink{}) == nil
+	nsHandle, err := netns.GetFromName(ns)
+	if err != nil {
+		log.Printf("GetFromName: %v", err)
+		return false
+	}
+
+	if err := netlink.LinkAdd(&wgLink{ns: int(nsHandle)}); err != nil {
+		log.Printf("netlink.LinkAdd: %v", err)
+		return false
+	}
+
+	return true
 }()
 
 func TestNetconfig(t *testing.T) {
@@ -367,6 +394,9 @@ func TestNetconfig(t *testing.T) {
 		if !strings.Contains(string(link), "link/ether 02:73:53:00:b0:aa") {
 			t.Errorf("lan0 MAC address is not 02:73:53:00:b0:aa")
 		}
+		if !strings.Contains(string(link), " mtu 1492 ") {
+			t.Errorf("lan0 MTU is not 1492 (link: %q)", string(link))
+		}
 
 		addrs, err := exec.Command("ip", "-netns", ns, "address", "show", "dev", "uplink0").Output()
 		if err != nil {
@@ -444,11 +474,27 @@ peer: AVU3LodtnFaFnJmMyNNW7cUk4462lqnVULTFkjWYvRo=
 		if !upRe.MatchString(string(out)) {
 			t.Errorf("regexp %s does not match %s", upRe, string(out))
 		}
+
+		addr4Re := regexp.MustCompile(`(?m)^\s*inet 10.22.100.1/24 brd 10.22.100.255 scope global wg0\s*$`)
+		if !addr4Re.MatchString(string(out)) {
+			t.Errorf("regexp %s does not match %s", addr4Re, string(out))
+		}
+
 		addr6Re := regexp.MustCompile(`(?m)^\s*inet6 fe80::1/64 scope link\s*$`)
 		if !addr6Re.MatchString(string(out)) {
 			t.Errorf("regexp %s does not match %s", addr6Re, string(out))
 		}
 
+		out, err = exec.Command("ip", "-netns", ns, "-6", "route", "show", "dev", "wg0").Output()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		extraRouteRe := regexp.MustCompile(`(?m)^\s*2a02:168:4a00:22::/64 via fe80::2 metric 1024 pref medium\s*$`)
+		if !extraRouteRe.MatchString(string(out)) {
+			t.Errorf("regexp %s does not match %s", extraRouteRe, string(out))
+		}
+
 	})
 
 	opts := []cmp.Option{

internal/dhcp4d/dhcp4d.go

@@ -196,7 +196,7 @@ func (h *Handler) canLease(reqIP net.IP, hwaddr string) int {
 	}
 
 	leaseNum := dhcp4.IPRange(h.start, reqIP) - 1
-	if leaseNum < 0 || leaseNum >= h.leaseRange {
+	if leaseNum < 0 {
 		return -1
 	}
 
@@ -204,6 +204,10 @@ func (h *Handler) canLease(reqIP net.IP, hwaddr string) int {
 	defer h.leasesMu.Unlock()
 	l, ok := h.leasesIP[leaseNum]
 	if !ok {
+		if leaseNum >= h.leaseRange {
+			return -1
+		}
+
 		return leaseNum // lease available
 	}
 
@@ -211,6 +215,10 @@ func (h *Handler) canLease(reqIP net.IP, hwaddr string) int {
 		return leaseNum // lease already owned by requestor
 	}
 
+	if leaseNum >= h.leaseRange {
+		return -1
+	}
+
 	if l.Expired(h.timeNow()) {
 		return leaseNum // lease expired
 	}

internal/diag/tcp.go

@@ -53,6 +53,7 @@ func TCP4(addr string) Node {
 
 type tcp6 struct {
 	children []Node
+	ifname   string
 	addr     string
 }
 
@@ -70,7 +71,39 @@ func (d *tcp6) Children() []Node {
 }
 
 func (d *tcp6) Evaluate() (string, error) {
-	conn, err := net.Dial("tcp6", d.addr)
+	var dialer net.Dialer
+
+	if d.ifname != "" {
+		iface, err := net.InterfaceByName(d.ifname)
+		if err != nil {
+			return "", err
+		}
+		addrs, err := iface.Addrs()
+		if err != nil {
+			return "", err
+		}
+		for _, addr := range addrs {
+			ipnet, ok := addr.(*net.IPNet)
+			if !ok {
+				continue
+			}
+
+			if ipnet.IP.To4() != nil {
+				continue // skip IPv4 addresses
+			}
+
+			if !global.Contains(ipnet.IP) {
+				continue // skip local IPv6 addresses
+			}
+
+			dialer.LocalAddr = &net.TCPAddr{
+				IP: ipnet.IP,
+			}
+			break
+		}
+	}
+
+	conn, err := dialer.Dial("tcp6", d.addr)
 	if err != nil {
 		return "", err
 	}
@@ -80,6 +113,9 @@ func (d *tcp6) Evaluate() (string, error) {
 
 // TCP6 returns a Node which succeeds when the specified address accepts a TCPv6
 // connection.
-func TCP6(addr string) Node {
-	return &tcp6{addr: addr}
+func TCP6(ifname, addr string) Node {
+	return &tcp6{
+		ifname: ifname,
+		addr:   addr,
+	}
 }

internal/netconfig/netconfig.go

@@ -33,6 +33,7 @@ import (
 	"github.com/google/nftables/binaryutil"
 	"github.com/google/nftables/expr"
 	"github.com/google/renameio"
+	"github.com/mdlayher/ethtool"
 	"github.com/vishvananda/netlink"
 	"golang.org/x/sys/unix"
 
@@ -63,7 +64,7 @@ func subnetMaskSize(mask string) (int, error) {
 	return ones, nil
 }
 
-func applyDhcp4(dir string) error {
+func applyDhcp4(dir string, cfg InterfaceConfig) error {
 	b, err := ioutil.ReadFile(filepath.Join(dir, "dhcp4/wire/lease.json"))
 	if err != nil {
 		if os.IsNotExist(err) {
@@ -141,6 +142,51 @@ func applyDhcp4(dir string) error {
 		return fmt.Errorf("RouteReplace(router): %v", err)
 	}
 
+	if defaultViaWireguard(cfg) {
+		// The default route is on a WireGuard interface, so do not install the
+		// default route from the DHCP reply. Instead, set up a host route for
+		// the WireGuard endpoint(s).
+
+		log.Printf("IPv4 traffic is routed via WireGuard, setting host route instead of default route")
+
+		b, err := ioutil.ReadFile(filepath.Join(dir, "wireguard.json"))
+		if err != nil {
+			return err
+		}
+		var wgcfg wireguardInterfaces
+		if err := json.Unmarshal(b, &wgcfg); err != nil {
+			return err
+		}
+
+		for _, iface := range wgcfg.Interfaces {
+			for _, p := range iface.Peers {
+				addr, err := net.ResolveUDPAddr("udp", p.Endpoint)
+				if err != nil {
+					return err
+				}
+
+				log.Printf("  WireGuard endpoint %s", addr.IP)
+
+				router := net.ParseIP(got.Router)
+				if addr.IP.Equal(router) {
+					continue // endpoint == router, no route required
+				}
+
+				if err := h.RouteReplace(&netlink.Route{
+					LinkIndex: link.Attrs().Index,
+					Dst: &net.IPNet{
+						IP:   addr.IP,
+						Mask: net.CIDRMask(32, 32),
+					},
+					Gw:       net.ParseIP(got.Router),
+					Src:      net.ParseIP(got.ClientIP),
+					Protocol: RTPROT_DHCP,
+				}); err != nil {
+					return fmt.Errorf("RouteReplace(default): %v", err)
+				}
+			}
+		}
+	} else {
 		if err := h.RouteReplace(&netlink.Route{
 			LinkIndex: link.Attrs().Index,
 			Dst: &net.IPNet{
@@ -153,10 +199,30 @@ func applyDhcp4(dir string) error {
 		}); err != nil {
 			return fmt.Errorf("RouteReplace(default): %v", err)
 		}
+	}
 
 	return nil
 }
 
+func defaultViaWireguard(cfg InterfaceConfig) bool {
+	for _, iface := range cfg.Interfaces {
+		if !strings.HasPrefix(iface.Name, "wg") {
+			continue
+		}
+		for _, route := range iface.ExtraRoutes {
+			_, n, err := net.ParseCIDR(route.Destination)
+			if err != nil {
+				continue
+			}
+			ones, bits := n.Mask.Size()
+			if n.IP.Equal(net.IPv4zero) && ones == 0 && bits == 32 {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 func applyDhcp6(dir string) error {
 	b, err := ioutil.ReadFile(filepath.Join(dir, "dhcp6/wire/lease.json"))
 	if err != nil {
@@ -195,11 +261,26 @@ func applyDhcp6(dir string) error {
 	return nil
 }
 
+type Route struct {
+	Destination string `json:"destination"` // e.g. 2a02:168:4a00:22::/64
+	Gateway     string `json:"gateway"`     // e.g. fe80::1
+}
+
 type InterfaceDetails struct {
 	HardwareAddr      string   `json:"hardware_addr"`       // e.g. dc:9b:9c:ee:72:fd
 	SpoofHardwareAddr string   `json:"spoof_hardware_addr"` // e.g. dc:9b:9c:ee:72:fd
 	Name              string   `json:"name"`                // e.g. uplink0, or lan0
 	Addr              string   `json:"addr"`                // e.g. 192.168.42.1/24
+	ExtraAddrs        []string `json:"extra_addrs"`         // e.g. ["192.168.23.1/24"]
+	ExtraRoutes       []Route  `json:"extra_routes"`
+	MTU               int      `json:"mtu"` // e.g. 1492 for PPPoE connections
+	// FEC optionally allows configuring forward error correction, e.g. RS for
+	// reed-solomon forward error correction, or Off to disable.
+	//
+	// Some network card and SFP module combinations (e.g. Mellanox ConnectX-4
+	// with a Flexoptix P.B1625G.10.AD) need to explicitly be configured to use
+	// RS forward error correction, otherwise they won’t link.
+	FEC string `json:"fec"`
 }
 
 type BridgeDetails struct {
@@ -302,18 +383,64 @@ func applyBridges(cfg *InterfaceConfig) error {
 	return nil
 }
 
-func applyInterfaces(dir, root string) error {
-	b, err := ioutil.ReadFile(filepath.Join(dir, "interfaces.json"))
+func applyInterfaceFEC(details InterfaceDetails) error {
+	if details.FEC == "" {
+		return nil // nothing to do
+	}
+
+	desired := ethtool.FECModes(unix.ETHTOOL_FEC_RS)
+	switch strings.ToLower(details.FEC) {
+	case "rs":
+		desired = unix.ETHTOOL_FEC_RS
+	case "baser":
+		desired = unix.ETHTOOL_FEC_BASER
+	case "off":
+		desired = unix.ETHTOOL_FEC_OFF
+	case "none":
+		desired = unix.ETHTOOL_FEC_NONE
+	case "llrs":
+		desired = unix.ETHTOOL_FEC_LLRS
+	case "auto":
+		desired = 0
+	default:
+		return fmt.Errorf("unknown FEC value %q, expected one of RS, BaseR, LLRS, Auto, None, Off", details.FEC)
+	}
+
+	cl, err := ethtool.New()
 	if err != nil {
-		if os.IsNotExist(err) {
+		return err
+	}
+	defer cl.Close()
+
+	li, err := cl.LinkInfo(ethtool.Interface{Name: details.Name})
+	if err != nil {
+		return fmt.Errorf("LinkInfo(%s): %v", details.Name, err)
+	}
+
+	fec, err := cl.FEC(li.Interface)
+	if err != nil {
+		return fmt.Errorf("FEC(%s): %v", li.Interface.Name, err)
+	}
+	log.Printf("FEC supported/configured: [%v], active: %v", fec.Supported(), fec.Active)
+	// fec.Active is not set when there is no link, so we compare
+	// supported/configured instead.
+	if fec.Supported() == desired {
+		return nil // already matching the desired configuration
+	}
+
+	log.Printf("setting FEC to %v", desired)
+	if err := cl.SetFEC(ethtool.FEC{
+		Interface: li.Interface,
+		Modes:     desired,
+		Auto:      strings.ToLower(details.FEC) == "auto",
+	}); err != nil {
+		return err
+	}
+
 	return nil
 }
-		return err
-	}
-	var cfg InterfaceConfig
-	if err := json.Unmarshal(b, &cfg); err != nil {
-		return err
-	}
+
+func applyInterfaces(dir, root string, cfg InterfaceConfig) error {
 	byName := make(map[string]InterfaceDetails)
 	byHardwareAddr := make(map[string]InterfaceDetails)
 	for _, details := range cfg.Interfaces {
@@ -365,6 +492,12 @@ func applyInterfaces(dir, root string) error {
 			attr.Name = details.Name
 		}
 
+		if details.MTU != 0 {
+			if err := netlink.LinkSetMTU(l, details.MTU); err != nil {
+				return fmt.Errorf("LinkSetMTU(%d): %v", details.MTU, err)
+			}
+		}
+
 		if spoof := details.SpoofHardwareAddr; spoof != "" {
 			hwaddr, err := net.ParseMAC(spoof)
 			if err != nil {
@@ -375,6 +508,11 @@ func applyInterfaces(dir, root string) error {
 			}
 		}
 
+		if err := applyInterfaceFEC(details); err != nil {
+			// TODO: turn this into returning an error once proven stable
+			log.Printf("applyInterfaceFEC: %v", err)
+		}
+
 		if attr.OperState != netlink.OperUp {
 			// Set the interface to up, which is required by all other configuration.
 			if err := netlink.LinkSetUp(l); err != nil {
@@ -403,6 +541,36 @@ func applyInterfaces(dir, root string) error {
 				}
 			}
 		}
+
+		for _, addr := range details.ExtraAddrs {
+			log.Printf("replacing extra address %v on %v", addr, attr.Name)
+			addr, err := netlink.ParseAddr(addr)
+			if err != nil {
+				return fmt.Errorf("ParseAddr(%q): %v", addr, err)
+			}
+
+			if err := netlink.AddrReplace(l, addr); err != nil {
+				return fmt.Errorf("AddrReplace(%s, %v): %v", attr.Name, addr, err)
+			}
+		}
+
+		for _, route := range details.ExtraRoutes {
+			_, dst, err := net.ParseCIDR(route.Destination)
+			if err != nil {
+				return fmt.Errorf("ParseCIDR(%q): %v", route.Destination, err)
+			}
+			r := &netlink.Route{Dst: dst}
+			if route.Gateway != "" {
+				r.Gw = net.ParseIP(route.Gateway)
+			}
+			r.LinkIndex = attr.Index
+
+			log.Printf("replacing extra route %v on %v", r, attr.Name)
+
+			if err := netlink.RouteReplace(r); err != nil {
+				return fmt.Errorf("RouteReplace(%v): %v", r, err)
+			}
+		}
 	}
 	return nil
 }
@@ -944,6 +1112,8 @@ func applySysctl(ifname string) error {
 	sysctls := []string{
 		"net.ipv4.ip_forward=1",
 		"net.ipv6.conf.all.forwarding=1",
+		"net.ipv4.icmp_ratelimit=0",
+		"net.ipv6.icmp.ratelimit=0",
 	}
 	if ifname != "" {
 		sysctls = append(sysctls, "net.ipv6.conf."+ifname+".accept_ra=2")
@@ -961,11 +1131,21 @@ func applySysctl(ifname string) error {
 }
 
 func Apply(dir, root string, firewall bool) error {
+	var cfg InterfaceConfig
+	b, err := ioutil.ReadFile(filepath.Join(dir, "interfaces.json"))
+	if err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	if err == nil || os.IsNotExist(err) {
+		if err := json.Unmarshal(b, &cfg); err != nil {
+			return err
+		}
 
-	// TODO: split into two parts: delay the up until later
-	if err := applyInterfaces(dir, root); err != nil {
+		// TODO: split apply into two parts: delay the up until later
+		if err := applyInterfaces(dir, root, cfg); err != nil {
 			return fmt.Errorf("interfaces: %v", err)
 		}
+	}
 
 	var errors []error
 	appendError := func(err error) {
@@ -973,7 +1153,7 @@ func Apply(dir, root string, firewall bool) error {
 		log.Println(err)
 	}
 
-	if err := applyDhcp4(dir); err != nil {
+	if err := applyDhcp4(dir, cfg); err != nil {
 		appendError(fmt.Errorf("dhcp4: %v", err))
 	}
 

internal/radvd/radvd.go

@@ -19,6 +19,7 @@ import (
 	"log"
 	"net"
 	"net/netip"
+	"strings"
 	"sync"
 	"time"
 
@@ -93,6 +94,10 @@ func (s *Server) Serve(ifname string, conn net.PacketConn) error {
 		if err != nil {
 			return err
 		}
+		if !strings.HasSuffix(addr.String(), "%"+ifname) {
+			log.Printf("ignoring off-interface request from %v", addr)
+			continue
+		}
 		// TODO: isn’t this guaranteed by the filter above?
 		if n == 0 ||
 			ipv6.ICMPType(buf[0]) != ipv6.ICMPTypeRouterSolicitation {

website/content/installation.md

@@ -19,29 +19,62 @@ Connect your serial adapter ([usbcom1a](https://pcengines.ch/usbcom1a.htm) works
 
 Connect a network cable on `net0`, the port closest to the serial console port:
 
-<img src="https://github.com/rtr7/router7/raw/master/devsetup.jpg"
+<img src="https://raw.githubusercontent.com/rtr7/router7/master/devsetup.jpg"
 width="800" alt="router7 development setup">
 
-Next, build a router7 image:
+Next, create a router7 gokrazy instance (see [gokrazy
+quickstart](https://gokrazy.org/quickstart/) if you’re unfamiliar with gokrazy):
 
-```shell
-go get -u github.com/gokrazy/tools/cmd/gokr-packer github.com/rtr7/tools/cmd/...
-go get -u -d github.com/rtr7/router7
+```bash
+go install github.com/gokrazy/tools/cmd/gok@main
+go install github.com/rtr7/tools/cmd/...@latest
 mkdir /tmp/recovery
-GOARCH=amd64 gokr-packer \
-	-hostname=router7 \
-	-overwrite_boot=/tmp/recovery/boot.img \
-	-overwrite_mbr=/tmp/recovery/mbr.img \
-	-overwrite_root=/tmp/recovery/root.img \
-	-eeprom_package= \
-	-kernel_package=github.com/rtr7/kernel \
-	-firmware_package=github.com/rtr7/kernel \
-	-gokrazy_pkgs=github.com/gokrazy/gokrazy/cmd/ntp \
-	-serial_console=ttyS0,115200n8 \
-	github.com/rtr7/router7/cmd/...
+gok -i router7 new
+gok -i router7 edit
 ```
 
-Run `rtr7-recover -boot=/tmp/recovery/boot.img -mbr=/tmp/recovery/mbr.img -root=/tmp/recovery/root.img` to:
+Change the config until you have the following fields set:
+
+```json
+{
+    "Hostname": "router7",
+    "Packages": [
+        "github.com/gokrazy/fbstatus",
+        "github.com/gokrazy/hello",
+        "github.com/gokrazy/serial-busybox",
+        "github.com/gokrazy/breakglass"
+        "github.com/rtr7/router7/cmd/..."
+    ],
+    "SerialConsole": "ttyS0,115200",
+    "GokrazyPackages": [
+        "github.com/gokrazy/gokrazy/cmd/ntp",
+        "github.com/gokrazy/gokrazy/cmd/randomd"
+    ],
+    "KernelPackage": "github.com/rtr7/kernel",
+    "FirmwarePackage": "github.com/rtr7/kernel",
+    "EEPROMPackage": ""
+}
+```
+
+Then, build an image:
+
+```bash
+GOARCH=amd64 gok -i router7 overwrite \
+    --boot /tmp/recovery/boot.img \
+	--mbr /tmp/recovery/mbr.img \
+	--root /tmp/recovery/root.img
+```
+
+And serve the image for netboot installation:
+
+```bash
+rtr7-recover \
+    --boot /tmp/recovery/boot.img \
+    --mbr /tmp/recovery/mbr.img \
+    --root /tmp/recovery/root.img
+```
+
+Specifically, `rtr7-recover`:
 
 * trigger a reset [if a Teensy with the rebootor firmware is attached](#rebootor)
 * serve a DHCP lease to all clients which request PXE boot (i.e., your apu2c4)