tuto3: update checks

This is to avoid Ansible complaining about Resource busy files

Makefile

@@ -54,6 +54,22 @@ pkg/debian-tuto2: pkg/debian-tuto2/sshd_config pkg/debian-tuto2/gai.conf pkg/deb
 	linuxkit pkg build -org nemunaire pkg/debian-tuto2/
 	touch pkg/debian-tuto2
 
+pkg/debian-tuto3: pkg/debian-tuto3/sshd_config pkg/debian-tuto3/build.yml pkg/debian-tuto3/issue pkg/debian-tuto3/Dockerfile
+	linuxkit pkg build -org nemunaire pkg/debian-tuto3/
+	touch pkg/debian-tuto3
+
+pkg/router-tuto3: pkg/router-tuto3/build.yml pkg/router-tuto3/Dockerfile
+	linuxkit pkg build -org nemunaire pkg/router-tuto3/
+	touch pkg/router-tuto3
+
+pkg/tinydeb: pkg/tinydeb/sshd_config pkg/tinydeb/gai.conf pkg/tinydeb/build.yml pkg/tinydeb/Dockerfile
+	linuxkit pkg build -org nemunaire pkg/tinydeb/
+	touch pkg/tinydeb
+
+pkg/nsd: pkg/nsd/sshd_config pkg/nsd/build.yml pkg/nsd/init pkg/nsd/Dockerfile
+	linuxkit pkg build -org nemunaire pkg/tinydeb/
+	touch pkg/nsd
+
 tuto2-kernel: tuto2.yml
 	linuxkit build -docker $<
 tuto2-initrd.img: tuto2.yml
@@ -75,8 +91,6 @@ tuto2-srs.iso: tuto2.iso pkg/debian-tuto2/isolinux.cfg
 	sudo rm -rf $(TDIR)
 	isohybrid $@
 
-tuto2-srs.iso.gz: tuto2-srs.iso
-	gzip -9 < $< > $@
 
 tuto3-kernel: tuto3.yml
 	linuxkit build -docker $<
@@ -85,8 +99,12 @@ tuto3-initrd.img: tuto3.yml
 tuto3-cmdline: tuto3.yml
 	linuxkit build -docker $<
 
-tuto3.iso: tuto3.yml
+tuto3.iso: tuto3.yml pkg/debian-tuto3 pkg/router-tuto3 pkg/tinydeb pkg/unbound pkg/nsd
 	linuxkit build -docker -format iso-bios $<
 
-tuto3.iso.gz: tuto3.iso
+
+%.gz: %
 	gzip -9 < $< > $@
+
+%.torrent: %
+	mktorrent -o $@ -a http://ankh.serekh.nemunai.re:6969/announce -p -v $<

checker/checker.go

@@ -22,7 +22,10 @@ const (
 	year68           = 1 << 31 // For RFC1982 (Serial Arithmetic) calculations in 32 bits. Taken from miekg/dns
 )
 
-var verbose = false
+var (
+	verbose           = false
+	domainsHostingMap = map[string]string{}
+)
 
 // ICMP
 
@@ -48,13 +51,82 @@ func check_ping(ip string, cb func(pkt *ping.Packet)) (err error) {
 func get_GLUE(domain string) (aaaa net.IP, err error) {
 	client := dns.Client{Net: "tcp", Timeout: time.Second * 5}
 
+	dnssrv := "[2a01:e0a:2b:2250::b]:53"
+	if strings.HasSuffix(domain, adlin.DelegatedDomainSuffix) {
+		dnssrv = "[2a01:e0a:2b:2250::b]:53"
+	} else if v, ok := domainsHostingMap[domain]; ok {
+		dnssrv = v
+	} else {
+		// Looking for root NS
+		m := new(dns.Msg)
+		m.SetQuestion(".", dns.TypeNS)
+		m.RecursionDesired = false
+		m.SetEdns0(4096, true)
+
+		var r *dns.Msg
+		r, _, err = client.Exchange(m, dnssrv)
+		if err != nil {
+			return
+		}
+
+		if r == nil {
+			return nil, errors.New("response is nil during initial recursion")
+		}
+		if r.Rcode != dns.RcodeSuccess {
+			return nil, errors.New("failed to get a valid answer during initial recursion")
+		}
+
+		for _, answer := range r.Answer {
+			if t, ok := answer.(*dns.NS); ok {
+				dnssrv = t.Ns + ":53"
+			}
+		}
+		// Do casual recursion
+		i := 0
+	recursion:
+		for i = 0; i < 10; i++ {
+			m := new(dns.Msg)
+			m.SetQuestion(domain, dns.TypeNS)
+			m.RecursionDesired = false
+			m.SetEdns0(4096, true)
+
+			var r *dns.Msg
+			r, _, err = client.Exchange(m, dnssrv)
+			if err != nil {
+				return
+			}
+
+			if r == nil {
+				return nil, errors.New("response is nil during recursion")
+			}
+			if r.Rcode != dns.RcodeSuccess {
+				return nil, errors.New("failed to get a valid answer during recursion")
+			}
+
+			for _, answer := range r.Ns {
+				if t, ok := answer.(*dns.NS); ok {
+					dnssrv = t.Ns + ":53"
+					if t.Header().Name == domain {
+						break recursion
+					}
+				}
+			}
+		}
+
+		if i >= 10 {
+			return nil, fmt.Errorf("too much name recursions")
+		} else {
+			domainsHostingMap[domain] = dnssrv
+		}
+	}
+
 	m := new(dns.Msg)
 	m.SetQuestion(domain, dns.TypeNS)
 	m.RecursionDesired = false
 	m.SetEdns0(4096, true)
 
 	var r *dns.Msg
-	r, _, err = client.Exchange(m, "[2a01:e0a:2b:2250::b]:53")
+	r, _, err = client.Exchange(m, dnssrv)
 	if err != nil {
 		return
 	}
@@ -450,6 +522,21 @@ func studentsChecker() {
 					return
 				}
 
+				// PingResolver
+				if tunnel_version == 3 {
+					tmp := strings.Split(stdIP, ":")
+					tmp[len(tmp)-1] = "2"
+					stdResolverIP := strings.Join(tmp, ":")
+					go check_ping(stdResolverIP, func(_ *ping.Packet) {
+						if verbose {
+							log.Printf("%s resolver PONG", std.Login)
+						}
+						if _, err := std.UnlockChallenge(CheckMap[tunnel_version][PingResolver], ""); err != nil {
+							log.Printf("Unable to register challenge for %s: %s\n", std.Login, err.Error())
+						}
+					})
+				}
+
 				dnsIP := stdIP
 				var glueErr error
 				// Is GLUE defined?
@@ -484,7 +571,7 @@ func studentsChecker() {
 
 						// Check HTTP with DNS
 						if glueErr != nil {
-							std.RegisterChallengeError(100*(tunnel_version-1)+4, fmt.Errorf("Unable to perform the test due to GLUE problem: %w", err))
+							std.RegisterChallengeError(100*(tunnel_version-1)+4, fmt.Errorf("Unable to perform the test due to GLUE problem: %w", glueErr))
 						} else if err := check_http(addr.String(), std.MyDelegatedDomain()); err == nil {
 							if verbose {
 								log.Printf("%s just unlocked HTTP challenge\n", std.Login)
@@ -501,7 +588,7 @@ func studentsChecker() {
 
 						// Check HTTPs with DNS
 						if glueErr != nil {
-							std.RegisterChallengeError(100*(tunnel_version-1)+5, fmt.Errorf("Unable to perform the test due to GLUE problem: %w", err))
+							std.RegisterChallengeError(100*(tunnel_version-1)+5, fmt.Errorf("Unable to perform the test due to GLUE problem: %w", glueErr))
 						} else if err := check_https(std.MyDelegatedDomain(), addr.String()); err == nil {
 							if verbose {
 								log.Printf("%s just unlocked HTTPS challenge\n", std.Login)
@@ -564,11 +651,11 @@ func studentsChecker() {
 					if verbose {
 						log.Printf("%s just unlocked HTTP IP (without DNS) challenge\n", std.Login)
 					}
-					if _, err := std.UnlockChallenge(100*(tunnel_version-1)+0, ""); err != nil {
+					if _, err := std.UnlockChallenge(CheckMap[tunnel_version][HTTPonIP], ""); err != nil {
 						log.Printf("Unable to register challenge for %s: %s\n", std.Login, err.Error())
 					}
 				} else {
-					std.RegisterChallengeError(100*(tunnel_version-1)+0, err)
+					std.RegisterChallengeError(CheckMap[tunnel_version][HTTPonIP], err)
 					if verbose {
 						log.Printf("%s and HTTP IP (without DNS): %s\n", std.Login, err)
 					}

checker/checks.go

@@ -0,0 +1,47 @@
+package main
+
+type AdlinTest int
+
+const (
+	HTTPonIP AdlinTest = iota
+	HTTPonAssociatedDomain
+	HTTPSonAssociatedDomain
+	DNSDelegation
+	HTTPonDelegatedDomain
+	HTTPSonDelegatedDomain
+	Matrix
+	SNI
+	DNSSEC
+	PingResolver
+	DHCPonRH
+	DHCPonGuests
+	RHaccessNews
+	RHaccessNet
+	GuestNet
+)
+
+var CheckMap = map[int]map[AdlinTest]int{
+	2: map[AdlinTest]int{
+		HTTPonIP:                100,
+		HTTPonAssociatedDomain:  101,
+		HTTPSonAssociatedDomain: 102,
+		DNSDelegation:           103,
+		HTTPonDelegatedDomain:   104,
+		HTTPSonDelegatedDomain:  105,
+		Matrix:                  106,
+		DNSSEC:                  107,
+	},
+	3: map[AdlinTest]int{
+		PingResolver:           200,
+		HTTPonIP:               201,
+		DNSDelegation:          203,
+		HTTPonDelegatedDomain:  204,
+		HTTPSonDelegatedDomain: 205,
+		Matrix:                 206,
+		DHCPonRH:               208,
+		DHCPonGuests:           211,
+		RHaccessNews:           209,
+		RHaccessNet:            210,
+		GuestNet:               212,
+	},
+}

go.mod

@@ -0,0 +1,19 @@
+module git.nemunai.re/lectures/adlin
+
+go 1.16
+
+require (
+	github.com/coreos/go-oidc v2.2.1+incompatible
+	github.com/gdamore/tcell v1.4.0
+	github.com/go-sql-driver/mysql v1.5.0
+	github.com/jcmturner/gokrb5/v8 v8.4.2
+	github.com/julienschmidt/httprouter v1.3.0
+	github.com/mdlayher/arp v0.0.0-20191213142603-f72070a231fc
+	github.com/miekg/dns v1.1.41
+	github.com/pquerna/cachecontrol v0.0.0-20201205024021-ac21108117ac // indirect
+	github.com/rivo/tview v0.0.0-20210312174852-ae9464cc3598
+	golang.org/x/oauth2 v0.0.0-20210313182246-cd4f82c27b84
+	gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d // indirect
+	gopkg.in/ldap.v2 v2.5.1
+	gopkg.in/square/go-jose.v2 v2.5.1 // indirect
+)

go.sum

@@ -0,0 +1,440 @@
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+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=
+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=

libadlin/db.go

@@ -114,8 +114,10 @@ CREATE TABLE IF NOT EXISTS student_challenge_errors(
 	if _, err := db.Exec(`
 CREATE TABLE IF NOT EXISTS student_pong(
   id_student INTEGER NOT NULL,
-  time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  last TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  count INTEGER UNSIGNED DEFAULT 1,
   state BOOLEAN NOT NULL DEFAULT 0,
+  CONSTRAINT one_pong UNIQUE (id_student,state),
   FOREIGN KEY(id_student) REFERENCES students(id_student)
 ) DEFAULT CHARACTER SET = utf8 COLLATE = utf8_bin;
 `); err != nil {

libadlin/ping.go

@@ -6,18 +6,19 @@ import (
 
 type Pong struct {
 	Date  time.Time
+	Count uint
 	State bool
 }
 
 func (s *Student) LastPongs() (pongs []*Pong, err error) {
-	if rows, errr := DBQuery("SELECT time, state FROM student_pong WHERE id_student = ? ORDER BY time DESC", s.Id); errr != nil {
+	if rows, errr := DBQuery("SELECT last, count, state FROM student_pong WHERE id_student = ? ORDER BY last DESC", s.Id); errr != nil {
 		return nil, errr
 	} else {
 		defer rows.Close()
 
 		for rows.Next() {
 			p := &Pong{}
-			if err = rows.Scan(&p.Date, &p.State); err != nil {
+			if err = rows.Scan(&p.Date, &p.Count, &p.State); err != nil {
 				return
 			}
 			pongs = append(pongs, p)
@@ -31,6 +32,9 @@ func (s *Student) LastPongs() (pongs []*Pong, err error) {
 }
 
 func (s *Student) OnPong(state bool) (err error) {
-	_, err = DBExec("INSERT INTO student_pong (id_student, time, state) VALUES (?, ?, ?)", s.Id, time.Now(), state)
+	_, err = DBExec("INSERT INTO student_pong (id_student, last, state) VALUES (?, ?, ?)", s.Id, time.Now(), state)
+	if err != nil {
+		_, err = DBExec("UPDATE student_pong SET last = CURRENT_TIMESTAMP, count = count + 1 WHERE id_student = ? AND state = ?", s.Id, state)
+	}
 	return
 }

libadlin/tunnel.go

@@ -1,6 +1,7 @@
 package adlin
 
 import (
+	"crypto/ed25519"
 	"crypto/rand"
 	"crypto/sha512"
 	"encoding/base64"
@@ -14,6 +15,18 @@ import (
 
 const StdNetmask = 80
 
+var (
+	collector_secret ed25519.PrivateKey
+)
+
+func SetCollectorSecret(b []byte) {
+	collector_secret = ed25519.NewKeyFromSeed(b)
+}
+
+func GetCollectorPublic() ed25519.PublicKey {
+	return collector_secret.Public().(ed25519.PublicKey)
+}
+
 func StudentIP(idstd int64) net.IP {
 	return net.ParseIP(fmt.Sprintf("2a01:e0a:2b:2252:%x::", idstd))
 }
@@ -36,6 +49,10 @@ type WGDump struct {
 	KeepAlive  string
 }
 
+func (d *WGDump) GetPubKey() ([]byte, error) {
+	return base64.StdEncoding.DecodeString(d.PubKey)
+}
+
 var (
 	wgDumpCache_data  map[string]*WGDump = nil
 	wgDumpCache_time  time.Time
@@ -111,6 +128,14 @@ func (tt *TunnelToken) GetStudentIP() string {
 	}
 }
 
+func (tt *TunnelToken) GenKeySign() []byte {
+	stdprivkey := ed25519.NewKeyFromSeed(tt.token[:ed25519.SeedSize])
+
+	stdpublic := []byte(stdprivkey.Public().(ed25519.PublicKey))
+
+	return ed25519.Sign(collector_secret, stdpublic)
+}
+
 func TokenFromText(token string) []byte {
 	sha := sha512.Sum512([]byte(token))
 	return sha[:]
@@ -200,6 +225,23 @@ func (student *Student) GetActivesTunnels() (ts []*TunnelToken, err error) {
 	}
 }
 
+func (student *Student) GetActivesTunnelsPubKey() (ts []ed25519.PublicKey, err error) {
+	var activeTuns []*TunnelToken
+	activeTuns, err = student.GetActivesTunnels()
+	if err != nil {
+		return
+	}
+
+	for _, tun := range activeTuns {
+		if tun.Dump != nil {
+			pk := ed25519.NewKeyFromSeed(tun.token[:ed25519.SeedSize])
+			ts = append(ts, pk.Public().(ed25519.PublicKey))
+		}
+	}
+
+	return
+}
+
 func (student *Student) GetTunnelToken(token []byte) (t *TunnelToken, err error) {
 	t = new(TunnelToken)
 	err = DBQueryRow("SELECT token, token_text, id_student, pubkey, time, suffixip, version FROM student_tunnel_tokens WHERE token = ? AND id_student = ? ORDER BY time DESC", token, student.Id).Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.Version)

pkg/minichecker/Dockerfile

@@ -0,0 +1,23 @@
+FROM golang:alpine as gobuild
+
+ENV GOOS linux
+ENV GOARCH amd64
+
+RUN apk add --no-cache git gcc
+
+WORKDIR /go/src/minichecker
+
+ADD cmd ./
+
+RUN GO111MODULE=off go get -d -v
+RUN GO111MODULE=off go build -v -tags netgo
+
+
+FROM alpine
+MAINTAINER Pierre-Olivier Mercier <nemunaire@nemunai.re>
+
+COPY --from=gobuild /go/src/minichecker/minichecker /bin/minichecker
+
+RUN mkdir /etc/wireguard && touch /etc/wireguard/.wireguard
+
+ENTRYPOINT ["/bin/minichecker"]

pkg/minichecker/build.yml

@@ -0,0 +1,2 @@
+image: minichecker
+network: true

pkg/minichecker/cmd/adlin.conf

@@ -0,0 +1,12 @@
+[Interface]
+PrivateKey = AKZx4pYq2Do2j/OOFFJ6eA/O7DiAkr6aINJRHdMnkVU=
+[Peer]
+PublicKey = uSpqyYovvP4OG6wDxZ0Qkq45MfyK58PMUuPaLesY8FI=
+Endpoint = 82.64.31.248:42912
+AllowedIPs = ::/0
+PersistentKeepalive = 5
+# MyIPv6=2a01:e0a:2b:2252:1::2a/64
+# MyNetwork=2a01:e0a:2b:2252:1::/80
+# GWIPv6=2a01:e0a:2b:2252::1
+# MyLogin=nemunaire
+# KeySign=lcUxw+Gw+m9q21yvAL5BJJ9xpACTefeyR6qBsBFPyO9lqtrq/qqWAvf/gITtXdNmRne4FU72pw9pzL2J8SVeAw==

pkg/minichecker/cmd/adlin.token

@@ -0,0 +1 @@
+QMzkCN3PPg

pkg/minichecker/cmd/checker.go

@@ -0,0 +1,169 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/miekg/dns"
+	"github.com/sparrc/go-ping"
+)
+
+const (
+	DEFAULT_RESOLVER = "2a01:e0a:2b:2250::1"
+)
+
+var (
+	verbose   = false
+	test_name = ""
+)
+
+// ICMP
+
+func check_ping(ip string, cb func(pkt *ping.Packet)) (err error) {
+	var pinger *ping.Pinger
+	pinger, err = ping.NewPinger(ip)
+	if err != nil {
+		return
+	}
+	defer pinger.Stop()
+
+	pinger.Timeout = time.Second * 5
+	pinger.Count = 1
+	pinger.OnRecv = cb
+	pinger.SetPrivileged(true)
+	pinger.Run()
+
+	return
+}
+
+func check_dns(domain, ip string) (aaaa net.IP, err error) {
+	client := dns.Client{Timeout: time.Second * 5}
+
+	m := new(dns.Msg)
+	m.SetQuestion(domain, dns.TypeAAAA)
+
+	var r *dns.Msg
+	r, _, err = client.Exchange(m, fmt.Sprintf("[%s]:53", ip))
+	if err != nil {
+		return
+	}
+
+	if r == nil {
+		err = errors.New("response is nil")
+		return
+	}
+	if r.Rcode != dns.RcodeSuccess {
+		err = errors.New("failed to get a valid answer")
+		return
+	}
+
+	for _, answer := range r.Answer {
+		if t, ok := answer.(*dns.AAAA); ok {
+			aaaa = t.AAAA
+		}
+	}
+
+	return
+}
+
+// PORT 80
+
+func check_http(ip, dn string) (err error) {
+	client := &http.Client{
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+	}
+
+	req, errr := http.NewRequest("GET", fmt.Sprintf("http://[%s]/", ip), nil)
+	if errr != nil {
+		return errr
+	}
+
+	if dn != "" {
+		req.Header.Add("Host", strings.TrimSuffix(dn, "."))
+	}
+
+	var resp *http.Response
+	resp, err = client.Do(req)
+	if err != nil {
+		return
+	}
+	defer resp.Body.Close()
+
+	if dn != "" && resp.StatusCode >= 400 {
+		return fmt.Errorf("Bad status, got: %d (%s)", resp.StatusCode, resp.Status)
+	}
+
+	_, err = ioutil.ReadAll(resp.Body)
+	return
+}
+
+// PORT 443
+
+func check_https(domain, ip string) (err error) {
+	var resp *http.Response
+	resp, err = http.Get(fmt.Sprintf("https://%s/", strings.TrimSuffix(domain, ".")))
+	if err != nil {
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 300 && resp.StatusCode < 400 {
+		loc := resp.Header.Get("Location")
+		if loc != "" && strings.HasSuffix(dns.Fqdn(loc), domain) {
+			if dns.Fqdn(loc) == domain {
+				return fmt.Errorf("Redirection loop %s redirect to %s", domain, loc)
+			} else if err = check_https(dns.Fqdn(loc), ip); err != nil {
+				return fmt.Errorf("Error after following redirection to %s: %w", loc, err)
+			} else {
+				return
+			}
+		}
+	}
+
+	if resp.StatusCode >= 300 {
+		return fmt.Errorf("Bad status, got: %d (%s)", resp.StatusCode, resp.Status)
+	}
+
+	_, err = ioutil.ReadAll(resp.Body)
+	return
+}
+
+func wksChecker() {
+	if collectorpubkey == nil {
+		var err error
+		if collectorpubkey, err = getCollectorPublicKey(); err != nil {
+			log.Println("Contact collector:", err)
+			return
+		}
+	}
+
+	data, err := encodeData(SendMeta{Login: Login}, map[string]*string{
+		test_name: nil,
+	})
+	if err != nil {
+		log.Println("Unable to encode message:", err)
+		return
+	}
+
+	err = sendData(data)
+	if err != nil {
+		log.Println("Unable to send message:", err)
+		return
+	}
+
+	v, _ := json.Marshal(data)
+	if verbose {
+		log.Printf("sent %s", v)
+	}
+
+	return
+}

pkg/minichecker/cmd/encode.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"encoding/base64"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+var (
+	Login   string
+	KeySign string
+	target  string
+)
+
+func getCollectorPublicKey() (key []byte, err error) {
+	var resp *http.Response
+	resp, err = http.Get(target + "/api/collector_info")
+	if err != nil {
+		return
+	}
+
+	defer resp.Body.Close()
+
+	rd := base64.NewDecoder(base64.StdEncoding, json.NewDecoder(resp.Body).Buffered())
+	return ioutil.ReadAll(rd)
+}
+
+type SendMeta struct {
+	Time  time.Time `json:"time"`
+	Login string    `json:"login"`
+	Test  string    `json:"test,omitempty"`
+}
+
+type SendContent struct {
+	Meta    []byte `json:"meta"`
+	Data    []byte `json:"data"`
+	Sign    []byte `json:"sign"`
+	Key     []byte `json:"key"`
+	KeySign string `json:"keysign"`
+}
+
+func encodeData(meta SendMeta, v interface{}) (data SendContent, err error) {
+	if meta.Time.IsZero() {
+		meta.Time = time.Now()
+	}
+	var b []byte
+	b, err = json.Marshal(meta)
+	if err != nil {
+		return
+	}
+	data.Meta = []byte(base64.StdEncoding.EncodeToString(b))
+
+	b, err = json.Marshal(v)
+	if err != nil {
+		return
+	}
+	data.Data = []byte(base64.StdEncoding.EncodeToString(b))
+
+	data.Sign = ed25519.Sign(myprivkey, append(data.Meta, data.Data...))
+	data.Key = myprivkey.Public().(ed25519.PublicKey)
+	data.KeySign = KeySign
+
+	return
+}
+
+func sendData(data SendContent) (err error) {
+	b := new(bytes.Buffer)
+	json.NewEncoder(b).Encode(data)
+
+	var resp *http.Response
+	resp, err = http.Post(target+"/remote", "application/json", b)
+	if err != nil {
+		return
+	}
+
+	resp.Body.Close()
+
+	return
+}

pkg/minichecker/cmd/go.mod

@@ -0,0 +1 @@
+module example.com/mod

pkg/minichecker/cmd/main.go

@@ -0,0 +1,152 @@
+package main
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"crypto/sha512"
+	"flag"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"os"
+	"os/signal"
+	"path"
+	"syscall"
+	"time"
+
+	"gopkg.in/fsnotify.v1"
+)
+
+var (
+	myprivkey       ed25519.PrivateKey
+	collectorpubkey ed25519.PublicKey
+)
+
+func main() {
+	var tokenfile = flag.String("token-file", "/etc/wireguard/adlin.token", "Path to your token file")
+	var wgfile = flag.String("wg-file", "/etc/wireguard/adlin.conf", "Path to your wireguard configuration file")
+	var interval = flag.Duration("check-interval", 30*time.Second, "Interval between two checks")
+	flag.StringVar(&test_name, "test-name", "", "Name of the test to report")
+	flag.StringVar(&target, "target", "https://adlin.nemunai.re", "HTTP server to contact")
+	flag.BoolVar(&verbose, "verbose", verbose, "Enable verbose mode")
+	flag.Parse()
+
+	if test_name == "" {
+		test_name, _ = os.Hostname()
+	}
+
+	// First load token if it exists
+	if _, err := os.Stat(*tokenfile); !os.IsNotExist(err) {
+		if err := loadToken(*tokenfile); err != nil {
+			log.Fatal("ERROR: Unable to read token file:", err)
+		}
+	} else {
+		log.Fatal("Unable to find token file:", err)
+	}
+
+	// Load of configuration if it exists
+	if _, err := os.Stat(*wgfile); !os.IsNotExist(err) {
+		if err := loadSettings(*wgfile); err != nil {
+			log.Println("ERROR: Unable to read wg settings:", err)
+		}
+	}
+
+	// Register SIGHUP
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, syscall.SIGHUP)
+	go func() {
+		for range c {
+			log.Println("SIGHUP received, reloading settings...")
+			if err := loadSettings(*wgfile); err != nil {
+				log.Println("ERROR: Unable to read wg settings:", err)
+			}
+		}
+	}()
+
+	// Watch the configuration file
+	if watcher, err := fsnotify.NewWatcher(); err != nil {
+		log.Fatal(err)
+	} else {
+		if err := watcher.Add(path.Dir(*wgfile)); err != nil {
+			log.Fatal("Unable to watch: ", path.Dir(*wgfile), ": ", err)
+		}
+
+		go func() {
+			defer watcher.Close()
+			for {
+				select {
+				case ev := <-watcher.Events:
+					if path.Base(ev.Name) == *wgfile && ev.Op&(fsnotify.Write|fsnotify.Create) != 0 {
+						log.Println("Settings file changes, reloading it!")
+						if err := loadSettings(*wgfile); err != nil {
+							log.Println("ERROR: Unable to read wg settings:", err)
+						}
+					}
+				case err := <-watcher.Errors:
+					log.Println("watcher error:", err)
+				}
+			}
+		}()
+	}
+
+	// Prepare graceful shutdown
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
+
+	// Delay first check randomly
+	rand.Seed(time.Now().UnixNano())
+	n := rand.Intn(10)
+	time.Sleep(time.Duration(n) * time.Second)
+
+	ticker := time.NewTicker(*interval)
+	defer ticker.Stop()
+
+	// Launch checker
+	//wksChecker()
+loop:
+	for {
+		select {
+		case <-interrupt:
+			break loop
+		case <-ticker.C:
+			wksChecker()
+		}
+	}
+
+}
+
+func loadToken(filename string) error {
+	if fd, err := os.Open(filename); err != nil {
+		return err
+	} else {
+		defer fd.Close()
+
+		if b, err := ioutil.ReadAll(fd); err != nil {
+			return err
+		} else {
+			seed := sha512.Sum512(bytes.TrimSpace(b))
+			myprivkey = ed25519.NewKeyFromSeed(seed[:ed25519.SeedSize])
+		}
+
+		return nil
+	}
+}
+
+func loadSettings(filename string) error {
+	if fd, err := os.Open(filename); err != nil {
+		return err
+	} else {
+		defer fd.Close()
+
+		if b, err := ioutil.ReadAll(fd); err != nil {
+			return err
+		} else if wgConf, err := FromWgQuick(string(b), "wg0"); err != nil {
+			return err
+		} else {
+			Login = wgConf.Interface.MyLogin
+			KeySign = wgConf.Interface.KeySign
+		}
+
+		return nil
+	}
+}

pkg/minichecker/cmd/wg.go

@@ -0,0 +1,409 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2019-2021 WireGuard LLC. All Rights Reserved.
+ *
+ * From https://git.zx2c4.com/wireguard-windows/conf/
+ */
+package main
+
+import (
+	"crypto/subtle"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"net"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const KeyLength = 32
+
+type IPCidr struct {
+	IP   net.IP
+	Cidr uint8
+}
+
+type Endpoint struct {
+	Host string
+	Port uint16
+}
+
+type Key [KeyLength]byte
+type HandshakeTime time.Duration
+type Bytes uint64
+
+type Config struct {
+	Name      string
+	Interface Interface
+	Peers     []Peer
+}
+
+type Interface struct {
+	PrivateKey Key
+	MyLogin    string
+	KeySign    string
+	Addresses  []IPCidr
+	ListenPort uint16
+	MTU        uint16
+	DNS        []net.IP
+	DNSSearch  []string
+	PreUp      string
+	PostUp     string
+	PreDown    string
+	PostDown   string
+}
+
+type Peer struct {
+	PublicKey           Key
+	PresharedKey        Key
+	AllowedIPs          []IPCidr
+	Endpoint            Endpoint
+	PersistentKeepalive uint16
+
+	RxBytes           Bytes
+	TxBytes           Bytes
+	LastHandshakeTime HandshakeTime
+}
+
+func (k *Key) IsZero() bool {
+	var zeros Key
+	return subtle.ConstantTimeCompare(zeros[:], k[:]) == 1
+}
+
+type ParseError struct {
+	why      string
+	offender string
+}
+
+func (e *ParseError) Error() string {
+	return fmt.Sprintf("%s: %q", e.why, e.offender)
+}
+
+func parseIPCidr(s string) (ipcidr *IPCidr, err error) {
+	var addrStr, cidrStr string
+	var cidr int
+
+	i := strings.IndexByte(s, '/')
+	if i < 0 {
+		addrStr = s
+	} else {
+		addrStr, cidrStr = s[:i], s[i+1:]
+	}
+
+	err = &ParseError{fmt.Sprintf("Invalid IP address"), s}
+	addr := net.ParseIP(addrStr)
+	if addr == nil {
+		return
+	}
+	maybeV4 := addr.To4()
+	if maybeV4 != nil {
+		addr = maybeV4
+	}
+	if len(cidrStr) > 0 {
+		err = &ParseError{fmt.Sprintf("Invalid network prefix length"), s}
+		cidr, err = strconv.Atoi(cidrStr)
+		if err != nil || cidr < 0 || cidr > 128 {
+			return
+		}
+		if cidr > 32 && maybeV4 != nil {
+			return
+		}
+	} else {
+		if maybeV4 != nil {
+			cidr = 32
+		} else {
+			cidr = 128
+		}
+	}
+	return &IPCidr{addr, uint8(cidr)}, nil
+}
+
+func parseEndpoint(s string) (*Endpoint, error) {
+	i := strings.LastIndexByte(s, ':')
+	if i < 0 {
+		return nil, &ParseError{fmt.Sprintf("Missing port from endpoint"), s}
+	}
+	host, portStr := s[:i], s[i+1:]
+	if len(host) < 1 {
+		return nil, &ParseError{fmt.Sprintf("Invalid endpoint host"), host}
+	}
+	port, err := parsePort(portStr)
+	if err != nil {
+		return nil, err
+	}
+	hostColon := strings.IndexByte(host, ':')
+	if host[0] == '[' || host[len(host)-1] == ']' || hostColon > 0 {
+		err := &ParseError{fmt.Sprintf("Brackets must contain an IPv6 address"), host}
+		if len(host) > 3 && host[0] == '[' && host[len(host)-1] == ']' && hostColon > 0 {
+			end := len(host) - 1
+			if i := strings.LastIndexByte(host, '%'); i > 1 {
+				end = i
+			}
+			maybeV6 := net.ParseIP(host[1:end])
+			if maybeV6 == nil || len(maybeV6) != net.IPv6len {
+				return nil, err
+			}
+		} else {
+			return nil, err
+		}
+		host = host[1 : len(host)-1]
+	}
+	return &Endpoint{host, uint16(port)}, nil
+}
+
+func parseMTU(s string) (uint16, error) {
+	m, err := strconv.Atoi(s)
+	if err != nil {
+		return 0, err
+	}
+	if m < 576 || m > 65535 {
+		return 0, &ParseError{fmt.Sprintf("Invalid MTU"), s}
+	}
+	return uint16(m), nil
+}
+
+func parsePort(s string) (uint16, error) {
+	m, err := strconv.Atoi(s)
+	if err != nil {
+		return 0, err
+	}
+	if m < 0 || m > 65535 {
+		return 0, &ParseError{fmt.Sprintf("Invalid port"), s}
+	}
+	return uint16(m), nil
+}
+
+func parsePersistentKeepalive(s string) (uint16, error) {
+	if s == "off" {
+		return 0, nil
+	}
+	m, err := strconv.Atoi(s)
+	if err != nil {
+		return 0, err
+	}
+	if m < 0 || m > 65535 {
+		return 0, &ParseError{fmt.Sprintf("Invalid persistent keepalive"), s}
+	}
+	return uint16(m), nil
+}
+
+func parseKeyBase64(s string) (*Key, error) {
+	k, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return nil, &ParseError{fmt.Sprintf("Invalid key: %v", err), s}
+	}
+	if len(k) != KeyLength {
+		return nil, &ParseError{fmt.Sprintf("Keys must decode to exactly 32 bytes"), s}
+	}
+	var key Key
+	copy(key[:], k)
+	return &key, nil
+}
+
+func parseKeyHex(s string) (*Key, error) {
+	k, err := hex.DecodeString(s)
+	if err != nil {
+		return nil, &ParseError{fmt.Sprintf("Invalid key: %v", err), s}
+	}
+	if len(k) != KeyLength {
+		return nil, &ParseError{fmt.Sprintf("Keys must decode to exactly 32 bytes"), s}
+	}
+	var key Key
+	copy(key[:], k)
+	return &key, nil
+}
+
+func parseBytesOrStamp(s string) (uint64, error) {
+	b, err := strconv.ParseUint(s, 10, 64)
+	if err != nil {
+		return 0, &ParseError{fmt.Sprintf("Number must be a number between 0 and 2^64-1: %v", err), s}
+	}
+	return b, nil
+}
+
+func splitList(s string) ([]string, error) {
+	var out []string
+	for _, split := range strings.Split(s, ",") {
+		trim := strings.TrimSpace(split)
+		if len(trim) == 0 {
+			return nil, &ParseError{fmt.Sprintf("Two commas in a row"), s}
+		}
+		out = append(out, trim)
+	}
+	return out, nil
+}
+
+type parserState int
+
+const (
+	inInterfaceSection parserState = iota
+	inPeerSection
+	notInASection
+)
+
+func (c *Config) maybeAddPeer(p *Peer) {
+	if p != nil {
+		c.Peers = append(c.Peers, *p)
+	}
+}
+
+func FromWgQuick(s string, name string) (*Config, error) {
+	lines := strings.Split(s, "\n")
+	parserState := notInASection
+	conf := Config{Name: name}
+	sawPrivateKey := false
+	var peer *Peer
+	for _, line := range lines {
+		pound := strings.IndexByte(line, '#')
+		if pound >= 0 {
+			if !strings.Contains(line, "MyLogin") && !strings.Contains(line, "KeySign") {
+				line = line[:pound]
+			} else {
+				line = line[pound+1:]
+			}
+		}
+		line = strings.TrimSpace(line)
+		lineLower := strings.ToLower(line)
+		if len(line) == 0 {
+			continue
+		}
+		if lineLower == "[interface]" {
+			conf.maybeAddPeer(peer)
+			parserState = inInterfaceSection
+			continue
+		}
+		if lineLower == "[peer]" {
+			conf.maybeAddPeer(peer)
+			peer = &Peer{}
+			parserState = inPeerSection
+			continue
+		}
+		if parserState == notInASection {
+			return nil, &ParseError{fmt.Sprintf("Line must occur in a section"), line}
+		}
+		equals := strings.IndexByte(line, '=')
+		if equals < 0 {
+			return nil, &ParseError{fmt.Sprintf("Config key is missing an equals separator"), line}
+		}
+		key, val := strings.TrimSpace(lineLower[:equals]), strings.TrimSpace(line[equals+1:])
+		if len(val) == 0 {
+			return nil, &ParseError{fmt.Sprintf("Key must have a value"), line}
+		}
+		if parserState == inInterfaceSection {
+			switch key {
+			case "privatekey":
+				k, err := parseKeyBase64(val)
+				if err != nil {
+					return nil, err
+				}
+				conf.Interface.PrivateKey = *k
+				sawPrivateKey = true
+			case "listenport":
+				p, err := parsePort(val)
+				if err != nil {
+					return nil, err
+				}
+				conf.Interface.ListenPort = p
+			case "mtu":
+				m, err := parseMTU(val)
+				if err != nil {
+					return nil, err
+				}
+				conf.Interface.MTU = m
+			case "address":
+				addresses, err := splitList(val)
+				if err != nil {
+					return nil, err
+				}
+				for _, address := range addresses {
+					a, err := parseIPCidr(address)
+					if err != nil {
+						return nil, err
+					}
+					conf.Interface.Addresses = append(conf.Interface.Addresses, *a)
+				}
+			case "dns":
+				addresses, err := splitList(val)
+				if err != nil {
+					return nil, err
+				}
+				for _, address := range addresses {
+					a := net.ParseIP(address)
+					if a == nil {
+						conf.Interface.DNSSearch = append(conf.Interface.DNSSearch, address)
+					} else {
+						conf.Interface.DNS = append(conf.Interface.DNS, a)
+					}
+				}
+			case "preup":
+				conf.Interface.PreUp = val
+			case "postup":
+				conf.Interface.PostUp = val
+			case "predown":
+				conf.Interface.PreDown = val
+			case "postdown":
+				conf.Interface.PostDown = val
+			default:
+				return nil, &ParseError{fmt.Sprintf("Invalid key for [Interface] section"), key}
+			}
+		} else if parserState == inPeerSection {
+			switch key {
+			case "publickey":
+				k, err := parseKeyBase64(val)
+				if err != nil {
+					return nil, err
+				}
+				peer.PublicKey = *k
+			case "presharedkey":
+				k, err := parseKeyBase64(val)
+				if err != nil {
+					return nil, err
+				}
+				peer.PresharedKey = *k
+			case "allowedips":
+				addresses, err := splitList(val)
+				if err != nil {
+					return nil, err
+				}
+				for _, address := range addresses {
+					a, err := parseIPCidr(address)
+					if err != nil {
+						return nil, err
+					}
+					peer.AllowedIPs = append(peer.AllowedIPs, *a)
+				}
+			case "persistentkeepalive":
+				p, err := parsePersistentKeepalive(val)
+				if err != nil {
+					return nil, err
+				}
+				peer.PersistentKeepalive = p
+			case "endpoint":
+				e, err := parseEndpoint(val)
+				if err != nil {
+					return nil, err
+				}
+				peer.Endpoint = *e
+			case "mylogin":
+				conf.Interface.MyLogin = val
+			case "keysign":
+				conf.Interface.KeySign = val
+			default:
+				return nil, &ParseError{fmt.Sprintf("Invalid key for [Peer] section"), key}
+			}
+		}
+	}
+	conf.maybeAddPeer(peer)
+
+	if !sawPrivateKey {
+		return nil, &ParseError{fmt.Sprintf("An interface must have a private key"), fmt.Sprintf("[none specified]")}
+	}
+	for _, p := range conf.Peers {
+		if p.PublicKey.IsZero() {
+			return nil, &ParseError{fmt.Sprintf("All peers must have public keys"), fmt.Sprintf("[none specified]")}
+		}
+	}
+
+	return &conf, nil
+}

pkg/router-tuto3/Dockerfile

@@ -0,0 +1,14 @@
+FROM openwrtorg/rootfs:x86-64-19.07.7
+
+RUN mkdir -p /var/lock/ && opkg update && opkg install \
+    bind-dig \
+    curl \
+    ethtool \
+    luci-proto-wireguard \
+    nano \
+    ssmtp \
+    python \
+    tcpdump \
+  && rm -rf /var/lock \
+  && rm -rf /etc/ssh/ssh_host_*_key* \
+  && echo "alias ip='ip -c'" >> /etc/profile

pkg/router-tuto3/build.yml

@@ -0,0 +1,2 @@
+image: router-tuto3
+network: true

pkg/unbound/Dockerfile

@@ -1,15 +1,17 @@
 FROM alpine
 MAINTAINER Pierre-Olivier Mercier <nemunaire@nemunai.re>
 
-RUN apk add --no-cache unbound dnssec-root
+RUN apk add --no-cache alpine-baselayout bash busybox unbound unbound-openrc dnssec-root openssh openrc
-COPY docker-entrypoint.sh /
 
 VOLUME /etc/unbound
 
 EXPOSE 53
 EXPOSE 53/udp
 
-ENTRYPOINT ["/docker-entrypoint.sh"]
+RUN unbound-anchor && mkdir -p /var/log && touch /var/log/unbound.log && chown unbound:unbound /var/log/unbound.log
-CMD ["/usr/sbin/unbound", "-d"]
+RUN rc-update add unbound default && rc-update add sshd default && rc-update add networking default
+COPY sshd_config /etc/ssh/sshd_config
+
+CMD ["/sbin/openrc-init"]
 
 LABEL org.mobyproject.config='{"binds": ["/etc/resolv.conf:/etc/resolv.conf"], "capabilities": ["CAP_NET_BIND_SERVICE"]}'

pkg/unbound/sshd_config

@@ -0,0 +1,104 @@
+#	$OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $
+
+# This is the sshd server system-wide configuration file.  See
+# sshd_config(5) for more information.
+
+# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+# The strategy used for options in the default sshd_config shipped with
+# OpenSSH is to specify options with their default value where
+# possible, but leave them commented.  Uncommented options override the
+# default value.
+
+#Port 22
+#AddressFamily any
+#ListenAddress 0.0.0.0
+#ListenAddress ::
+
+#HostKey /etc/ssh/ssh_host_rsa_key
+#HostKey /etc/ssh/ssh_host_ecdsa_key
+#HostKey /etc/ssh/ssh_host_ed25519_key
+
+# Ciphers and keying
+#RekeyLimit default none
+
+# Logging
+#SyslogFacility AUTH
+#LogLevel INFO
+
+# Authentication:
+
+#LoginGraceTime 2m
+PermitRootLogin yes
+#StrictModes yes
+#MaxAuthTries 6
+#MaxSessions 10
+
+#PubkeyAuthentication yes
+
+# Expect .ssh/authorized_keys2 to be disregarded by default in future.
+#AuthorizedKeysFile	       .ssh/authorized_keys .ssh/authorized_keys2
+
+#AuthorizedPrincipalsFile none
+
+#AuthorizedKeysCommand none
+#AuthorizedKeysCommandUser nobody
+
+# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
+#HostbasedAuthentication no
+# Change to yes if you don't trust ~/.ssh/known_hosts for
+# HostbasedAuthentication
+#IgnoreUserKnownHosts no
+# Don't read the user's ~/.rhosts and ~/.shosts files
+#IgnoreRhosts yes
+
+# To disable tunneled clear text passwords, change to no here!
+#PasswordAuthentication yes
+#PermitEmptyPasswords no
+
+# Change to yes to enable challenge-response passwords (beware issues with
+# some PAM modules and threads)
+ChallengeResponseAuthentication no
+
+# Kerberos options
+#KerberosAuthentication no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+#KerberosGetAFSToken no
+
+# GSSAPI options
+#GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+#GSSAPIStrictAcceptorCheck yes
+#GSSAPIKeyExchange no
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication.  Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
+UsePAM yes
+
+#AllowAgentForwarding yes
+#AllowTcpForwarding yes
+#GatewayPorts no
+X11Forwarding yes
+#X11DisplayOffset 10
+#X11UseLocalhost yes
+#PermitTTY yes
+PrintMotd no
+#PrintLastLog yes
+#TCPKeepAlive yes
+#UseLogin no
+#UsePrivilegeSeparation sandbox
+#PermitUserEnvironment no
+#Compression delayed
+#ClientAliveInterval 0
+#ClientAliveCountMax 3
+#UseDNS no
+#PidFile /var/run/sshd.pid
+#MaxStartups 10:30:100

pkg/wg/ask.sh

@@ -12,7 +12,7 @@ cmdline() {
 [ -f "/var/lib/adlin/wireguard/adlin.token" ] && WGTOKEN=$(cat /var/lib/adlin/wireguard/adlin.token)
 [ -z "${WGTOKEN}" ] && WGTOKEN=$(cmdline adlin.token)
 [ -z "${WGTOKEN}" ] && {
-    echo "You didn't define your token to connect the network. Please run here `join-p0m` and then reboot."
+    echo "You didn't define your token to connect the network. Please run here \`join-maatma\` and then reboot."
     exit 1
 }
 [ -f "/var/lib/adlin/wireguard/adlin.conf" ] && WGPRVKEY=$(sed 's/^.*PrivateKey *= *//p;d' /var/lib/adlin/wireguard/adlin.conf)
@@ -23,9 +23,9 @@ do
     exit 1
 done
 echo -n "${WGTOKEN}" > /var/lib/adlin/wireguard/adlin.token
-/sbin/ip link add dev wg0 type wireguard
+#/sbin/ip link add dev wg0 type wireguard
-/usr/bin/wg setconf wg0 /var/lib/adlin/wireguard/adlin.conf
+#/usr/bin/wg setconf wg0 /var/lib/adlin/wireguard/adlin.conf
-/sbin/ip address add dev wg0 $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf)
+#/sbin/ip address add dev wg0 $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf)
-/sbin/ip link set up dev wg0
+#/sbin/ip link set up dev wg0
-/sbin/ip -6 route del default
+#/sbin/ip -6 route del default
-/sbin/ip -6 route add default via $(sed 's/^.*GWIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf) pref high
+#/sbin/ip -6 route add default via $(sed 's/^.*GWIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf) pref high

token-validator/htdocs/js/adlin-common.js

@@ -23,6 +23,14 @@ var tuto_progress = [
         107: { title: "DNSSEC (bonus)", icon: "7", label: "DNSSEC"},
     },
     {
-	200: { title: "HTTP", label: "HTTP"},
+        200: { title: "PONG resolver", icon: "0", label: "PONG srv"},
+        201: { title: "HTTP on IP (bonus)", icon: "1", label: "HTTP IP"},
+        203: { title: "DNS Delegation", icon: "2", label: "DNS"},
+        204: { title: "HTTP on delegated domain", icon: "3", label: "HTTP on NS"},
+        205: { title: "HTTPS on delegated domain", icon: "4", label: "HTTPS on NS"},
+        206: { title: "Matrix", icon: "5", label: "Matrix"},
+        208: { title: "RH access net", icon: "6", label: "RH net"},
+        209: { title: "DG access net", icon: "7", label: "DG net"},
+        210: { title: "CM access net", icon: "8", label: "CM net"},
     },
 ];

token-validator/htdocs/js/adlin-dashboard.js

@@ -109,22 +109,26 @@ angular.module("AdLinApp")
     .controller("StudentProgressionController", function($scope, $interval, $http, Student, StudentProgression) {
       $scope.tuto_progress = tuto_progress;
       var refreshStd = function() {
-        $scope.student = Student.get({studentId: $scope.onestudent})
+        var student = Student.get({studentId: $scope.onestudent})
-        $scope.img = $scope.onestudent == "nemunaire" ? "mercie_d" : $scope.onestudent
+        student.$promise.then(function(stdnt) {
-        $scope.mychallenges = StudentProgression.get({studentId: $scope.onestudent})
+          $scope.student = stdnt
-        $scope.mychallenges.$promise.then(function(mychallenges) {
-          angular.forEach(mychallenges, function(ch, chid) {
-	    if (ch.time) {
-	      mychallenges[chid].time = new Date(ch.time);
-	      mychallenges[chid].recent = (Date.now() - mychallenges[chid].time)/1000;
-	    }
-	  });
-        })
-        $scope.student.$promise.then(function(student) {
 	  $http.get("/api/students/" + $scope.student.id + "/ips").then(function(response) {
 	    $scope.ips = response.data;
 	  });
         })
+
+        var mychallenges = StudentProgression.get({studentId: $scope.onestudent})
+        mychallenges.$promise.then(function(mychals) {
+          angular.forEach(mychals, function(ch, chid) {
+	    if (ch.time) {
+	      mychals[chid].time = new Date(ch.time);
+	      mychals[chid].recent = (Date.now() - mychals[chid].time)/1000;
+	    }
+	  });
+          $scope.mychallenges = mychals
+        })
+
+        $scope.img = $scope.onestudent == "nemunaire" ? "mercie_d" : $scope.onestudent
       }
       $scope.$watch("onestudent", function(onestudent) {
 	refreshStd();

token-validator/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"encoding/base64"
 	"flag"
 	"fmt"
 	"log"
@@ -16,7 +17,9 @@ import (
 	"git.nemunai.re/lectures/adlin/libadlin"
 )
 
-var baseURL string = "/"
+var (
+	baseURL string = "/"
+)
 
 type ResponseWriterPrefix struct {
 	real   http.ResponseWriter
@@ -59,6 +62,8 @@ func StripPrefix(prefix string, h http.Handler) http.Handler {
 }
 
 func main() {
+	var err error
+
 	if v, exists := os.LookupEnv("ADLIN_NS_HOST"); exists {
 		ControlSocket = v
 	}
@@ -68,6 +73,13 @@ func main() {
 	if v, exists := os.LookupEnv("ADLIN_TSIG_SECRET"); exists {
 		tsigSecret = v
 	}
+	if v, exists := os.LookupEnv("ADLIN_COLLECTOR_SECRET"); !exists {
+		log.Fatal("Please define ADLIN_COLLECTOR_SECRET environment variable")
+	} else if t, err := base64.StdEncoding.DecodeString(v); err != nil {
+		log.Fatal("Error reading ADLIN_COLLECTOR_SECRET variable:", err)
+	} else {
+		adlin.SetCollectorSecret(t)
+	}
 
 	var bind = flag.String("bind", ":8081", "Bind port/socket")
 	var dsn = flag.String("dsn", adlin.DSNGenerator(), "DSN to connect to the MySQL server")
@@ -82,7 +94,6 @@ func main() {
 	flag.Parse()
 
 	// Sanitize options
-	var err error
 	log.Println("Checking paths...")
 	if err = sanitizeStaticOptions(); err != nil {
 		log.Fatal(err)

token-validator/wg.go

@@ -17,6 +17,9 @@ import (
 )
 
 func init() {
+	router.GET("/api/collector_info", apiHandler(func(ps httprouter.Params, body []byte) (interface{}, error) {
+		return "\"" + base64.StdEncoding.EncodeToString(adlin.GetCollectorPublic()) + "\"", nil
+	}))
 	router.GET("/api/wg.conf", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
 		w.Header().Set("Content-Type", "text/plain")
 
@@ -149,7 +152,8 @@ PersistentKeepalive = 5
 # MyNetwork=%s/%d
 # GWIPv6=%s
 # MyLogin=%s
-`, base64.StdEncoding.EncodeToString(tinfo.SrvPubKey), "82.64.31.248", tinfo.SrvPort, tinfo.CltIPv6, token.SuffixIP, 64, tinfo.CltIPv6, tinfo.CltRange, tinfo.SrvGW6, student.Login)))
+# KeySign=%s
+`, base64.StdEncoding.EncodeToString(tinfo.SrvPubKey), "82.64.31.248", tinfo.SrvPort, tinfo.CltIPv6, token.SuffixIP, 64, tinfo.CltIPv6, tinfo.CltRange, tinfo.SrvGW6, student.Login, base64.StdEncoding.EncodeToString(token.GenKeySign()))))
 }
 
 func updateWgTunnel(student *adlin.Student, ps httprouter.Params, body []byte) (interface{}, error) {

tuto3.yml

@@ -1,5 +1,5 @@
 kernel:
-  image: linuxkit/kernel:4.19.113
+  image: linuxkit/kernel:4.19.121
 #  cmdline: "console=ttyS0 root=/dev/sda1 root=/dev/sr0 adlin.token=LqCdJDfniA"
   cmdline: "console=tty0"
 
@@ -40,9 +40,25 @@ onboot:
         net: /run/netns/router
 
 services:
-  - name: dhcpcd-wks1
+  - name: dhcpcd-wks-dg1
     image: linuxkit/dhcpcd:v0.8
-    hostname: wks1
+    hostname: wks-dg1
+    net: new
+    pid: new
+    ipc: new
+    uts: new
+    runtime:
+      interfaces:
+        - name: ethwks-dg1
+      bindNS:
+        net: /run/netns/wks-dg1
+        uts: /run/utsns/wks-dg1
+    binds:
+      - /var/lib/adlin/wks-dg1resolv.conf:/etc/resolv.conf
+
+  - name: dhcpcd-wks-rh1
+    image: linuxkit/dhcpcd:v0.8
+    hostname: wks-rh1
     net: new
     pid: new
     ipc: new
@@ -50,55 +66,72 @@ services:
     runtime:
       interfaces:
         - name: eth1
-        - name: ethwks1
+        - name: ethwks-rh1
       bindNS:
-        net: /run/netns/wks1
+        net: /run/netns/wks-rh1
-        uts: /run/utsns/wks1
+        uts: /run/utsns/wks-rh1
     binds:
-      - /var/lib/adlin/wks1resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wks-rh1resolv.conf:/etc/resolv.conf
 
-  - name: dhcpcd-wks2
+  - name: dhcpcd-wks-rh2
     image: linuxkit/dhcpcd:v0.8
-    hostname: wks2
+    hostname: wks-rh2
     net: new
     pid: new
     ipc: new
     uts: new
     runtime:
       interfaces:
-        - name: ethwks2
+        - name: ethwks-rh2
       bindNS:
-        net: /run/netns/wks2
+        net: /run/netns/wks-rh2
-        uts: /run/utsns/wks2
+        uts: /run/utsns/wks-rh2
     binds:
-      - /var/lib/adlin/wks2resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wks-rh2resolv.conf:/etc/resolv.conf
 
-  - name: sshd-wks1
+  - name: dhcpcd-wks-cm1
+    image: linuxkit/dhcpcd:v0.8
+    hostname: wks-cm1
+    net: new
+    pid: new
+    ipc: new
+    uts: new
+    runtime:
+      interfaces:
+        - name: ethwks-cm1
+      bindNS:
+        net: /run/netns/wks-cm1
+        uts: /run/utsns/wks-cm1
+    binds:
+      - /var/lib/adlin/wks-cm1resolv.conf:/etc/resolv.conf
+
+  - name: sshd-wks-dg1
     image: linuxkit/sshd:v0.8
-    net: /run/netns/wks1
+    net: /run/netns/wks-dg1
-    uts: /run/utsns/wks1
+    uts: /run/utsns/wks-dg1
     pid: new
     ipc: new
     binds:
       - /etc/ssh/sshd_config:/etc/ssh/sshd_config
       - /etc/wpasswd:/etc/passwd
       - /etc/wshadow:/etc/shadow
-      - /var/lib/adlin/wks1resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wks-dg1resolv.conf:/etc/resolv.conf
 
-  - name: sshd-wks2
+  - name: sshd-wks-rh1
     image: linuxkit/sshd:v0.8
-    net: /run/netns/wks2
+    net: /run/netns/wks-rh1
-    uts: /run/utsns/wks2
+    uts: /run/utsns/wks-rh1
     pid: new
     ipc: new
     binds:
       - /etc/ssh/sshd_config:/etc/ssh/sshd_config
       - /etc/wpasswd:/etc/passwd
       - /etc/wshadow:/etc/shadow
-      - /var/lib/adlin/wks2resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wks-rh1resolv.conf:/etc/resolv.conf
 
   - name: mainrouter
-    image: nemunaire/adlin-tuto3:a8593e91cb830dede2ad25a205ef47141a5a3c22
+    #image: nemunaire/adlin-tuto3:485bb9556ca3bc33e7fee16edd93c05f35eb1455
+    image: nemunaire/router-tuto3:c07718ca23c03ff5033c4042f0cbeca6c26d4e6f
     net: /run/netns/router
     pid: new
     ipc: new
@@ -111,10 +144,16 @@ services:
       - type: cgroup
         options: ["rw","nosuid","noexec","nodev","relatime"]
     binds:
+      - /var/lib/adlin/wrt-etc:/etc
+      - /etc/rinittab:/etc/inittab
       - /etc/hosts:/etc/hosts:ro
       - /etc/dresolv.conf:/etc/resolv.conf
+      - /etc/rsysctl.conf:/etc/sysctl.d/10-default.conf:ro
+      - /lib/preinit/20_check_iso:/lib/preinit/20_check_iso
+      - /lib/preinit/30_failsafe_wait:/lib/preinit/30_failsafe_wait
+      - /lib/preinit/99_10_failsafe_login:/lib/preinit/99_10_failsafe_login
   - name: matrix
-    image: nemunaire/tinydeb:eaa617bf726fb4cadfa22b3947709579e6001212
+    image: nemunaire/tinydeb:2ec3c0260da7242df267799dfe08fe2eb0d014b1
     net: /run/netns/chat
     pid: new
     ipc: new
@@ -130,7 +169,7 @@ services:
       - /etc/hosts:/etc/hosts:ro
       - /etc/dresolv.conf:/etc/resolv.conf
   - name: ns-resolv
-    image: nemunaire/unbound:ed3ccbb5340aefd48c53a97743fdc6edc7011103
+    image: nemunaire/unbound:4988e30d81f3b1782e7bc520d2d24123930d72a6
     net: /run/netns/ns
     pid: new
     ipc: new
@@ -138,7 +177,11 @@ services:
     hostname: resolvsrv
     capabilities:
       - all
+    mounts:
+      - type: cgroup
+        options: ["rw","nosuid","noexec","nodev","relatime"]
     binds:
+      - /etc/network:/etc/network:ro
       - /etc/unbound:/etc/unbound:ro
       - /etc/services:/etc/services:ro
   - name: ns-auth
@@ -177,7 +220,7 @@ services:
       - LANG=en_US.utf8
       - PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/"
       - PGDATA=/var/lib/postgresql/data
-      - POSTGRES_PASSWORD=adlin2021
+      - POSTGRES_PASSWORD=adlin2022
     binds:
       - /etc/services:/etc/services:ro
       - /initdb/:/docker-entrypoint-initdb.d/:ro
@@ -194,7 +237,7 @@ services:
 #    env:
 #      - MM_USERNAME=mattermost
 #      - MM_DBNAME=mattermost
-#      - MM_PASSWORD=adlin2021
+#      - MM_PASSWORD=adlin2022
 #    binds:
 #      - /etc/services:/etc/services:ro
 #      - /etc/hosts:/etc/hosts:ro
@@ -209,18 +252,18 @@ services:
       - all
     command: ["/bin/sh", "-c", "sleep 10; /usr/bin/miniflux"]
     env:
-      - DATABASE_URL=postgres://miniflux:adlin2021@db/miniflux?sslmode=disable
+      - DATABASE_URL=postgres://miniflux:adlin2022@db/miniflux?sslmode=disable
       - RUN_MIGRATIONS=1
       - CREATE_ADMIN=1
       - ADMIN_USERNAME=adeline
-      - ADMIN_PASSWORD=adlin2021
+      - ADMIN_PASSWORD=adlin2022
       - LISTEN_ADDR=0.0.0.0:8080
     binds:
       - /etc/hosts:/etc/hosts:ro
       - /etc/dresolv.conf:/etc/resolv.conf
       - /etc/services:/etc/services:ro
   - name: web
-    image: nemunaire/tinydeb:eaa617bf726fb4cadfa22b3947709579e6001212
+    image: nemunaire/tinydeb:2ec3c0260da7242df267799dfe08fe2eb0d014b1
     net: /run/netns/web
     pid: new
     ipc: new
@@ -235,17 +278,64 @@ services:
     binds:
       - /etc/dresolv.conf:/etc/resolv.conf
 
+  # Workstation testers
+  - name: minichecker-wks-rh2
+    image: nemunaire/minichecker:a5d37bb2ebed6df0e586184582763eb0cf727b51
+    net: /run/netns/wks-rh2
+    pid: new
+    ipc: new
+    uts: /run/utsns/wks-rh2
+    command: ["/bin/minichecker", "-check-interval", "50s", "-target", "https://adlin.nemunai.re"]
+    binds:
+      - /var/lib/adlin/wks-rh2resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wireguard/:/etc/wireguard/:ro
+  - name: minichecker-wks-dg1
+    image: nemunaire/minichecker:a5d37bb2ebed6df0e586184582763eb0cf727b51
+    net: /run/netns/wks-dg1
+    pid: new
+    ipc: new
+    uts: /run/utsns/wks-dg1
+    command: ["/bin/minichecker", "-check-interval", "50s", "-target", "https://adlin.nemunai.re"]
+    binds:
+      - /etc/hosts-minichecker:/etc/hosts:ro
+      - /var/lib/adlin/wks-dg1resolv.conf:/etc/resolv.conf
+      - /var/lib/adlin/wireguard/:/etc/wireguard/:ro
+  - name: minichecker-wks-cm1
+    image: nemunaire/minichecker:a5d37bb2ebed6df0e586184582763eb0cf727b51
+    net: /run/netns/wks-cm1
+    pid: new
+    ipc: new
+    uts: /run/utsns/wks-cm1
+    command: ["/bin/minichecker", "-check-interval", "50s", "-target", "https://adlin.nemunai.re"]
+    binds:
+      - /etc/hosts-minichecker:/etc/hosts:ro
+      - /var/lib/adlin/wireguard/:/etc/wireguard/:ro
+
 files:
   - path: etc/hosts
     contents: |
-      127.0.0.1   localhost
+      127.0.0.1    localhost
-      ::1         localhost
+      ::1          localhost
-      172.23.42.2 ns
+      172.23.42.2  ns
-      172.23.42.3 ns-auth
+      172.23.42.3  ns-auth
-      172.23.42.4 db
+      172.23.42.4  db
-      172.23.42.5 matrix
+      172.23.42.5  matrix
-      172.23.42.6 news
+      172.23.42.6  news
-      172.23.42.7 web
+      172.23.42.7  web
+      82.64.31.248 adlin.nemunai.re
+    mode: "0444"
+
+  - path: etc/hosts-minichecker
+    contents: |
+      127.0.0.1    localhost
+      ::1          localhost
+      172.23.42.2  ns
+      172.23.42.3  ns-auth
+      172.23.42.4  db
+      172.23.42.5  matrix
+      172.23.42.6  news
+      172.23.42.7  web
+      82.64.31.248 adlin.nemunai.re
     mode: "0444"
 
   - path: etc/sysctl.d/adlin.conf
@@ -268,17 +358,17 @@ files:
   - path: /usr/bin/reset-router-firewall
     contents: |
       #!/bin/sh
-      PS=$(pgrep systemd | head -1)
+      PS=$(pgrep procd | head -1)
-      nsenter -t "${PS}" -a iptables -F
+      nsenter -t "${PS}" -a -- iptables -F
-      nsenter -t "${PS}" -a iptables -P INPUT ACCEPT
+      nsenter -t "${PS}" -a -- iptables -P INPUT ACCEPT
-      nsenter -t "${PS}" -a iptables -P FORWARD ACCEPT
+      nsenter -t "${PS}" -a -- iptables -P FORWARD ACCEPT
-      nsenter -t "${PS}" -a iptables -P OUTPUT ACCEPT
+      nsenter -t "${PS}" -a -- iptables -P OUTPUT ACCEPT
-      nsenter -t "${PS}" -a iptables -t nat -F
+      nsenter -t "${PS}" -a -- iptables -t nat -F
     mode: "0755"
 
   - path: /usr/sbin/wg
     contents: |
-      nsenter -n/run/netns/router /usr/bin/wg $@
+      nsenter -n/run/netns/router -- /usr/bin/wg $@
     mode: "0755"
 
   - path: /initdb/init-miniflux.sh
@@ -286,7 +376,7 @@ files:
       #!/bin/sh
       set -e
       psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
-          CREATE USER miniflux WITH PASSWORD 'adlin2021';
+          CREATE USER miniflux WITH PASSWORD 'adlin2022';
           CREATE DATABASE miniflux;
           GRANT ALL PRIVILEGES ON DATABASE miniflux TO miniflux;
       EOSQL
@@ -297,14 +387,14 @@ files:
 
   - path: /initdb/init-matrix.sql
     contents: |
-      CREATE USER matrix WITH PASSWORD 'adlin2021';
+      CREATE USER matrix WITH PASSWORD 'adlin2022';
       CREATE DATABASE matrix ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' TEMPLATE template0 OWNER matrix;
       GRANT ALL PRIVILEGES ON DATABASE matrix TO matrix;
     mode: "0444"
 
   - path: /initdb/init-website.sql
     contents: |
-      CREATE USER website WITH PASSWORD 'adlin2021';
+      CREATE USER website WITH PASSWORD 'adlin2022';
       CREATE DATABASE website ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' TEMPLATE template0 OWNER website;
       GRANT ALL PRIVILEGES ON DATABASE website TO website;
     mode: "0444"
@@ -313,31 +403,31 @@ files:
     contents: |
       #!/bin/sh
       mkdir -p /var/lib/adlin/
-      rm -rf /var/lib/adlin/wks1resolv.conf /var/lib/adlin/wks2resolv.conf
+      rm -rf /var/lib/adlin/wks-dg1resolv.conf /var/lib/adlin/wks-rh1resolv.conf /var/lib/adlin/wks-rh2resolv.conf /var/lib/adlin/wks-cm1resolv.conf
-      touch /var/lib/adlin/wks1resolv.conf /var/lib/adlin/wks2resolv.conf
+      touch /var/lib/adlin/wks-dg1resolv.conf /var/lib/adlin/wks-rh1resolv.conf /var/lib/adlin/wks-rh2resolv.conf /var/lib/adlin/wks-cm1resolv.conf
     mode: "0755"
 
   - path: etc/init.d/011-tuto-net
     contents: |
       #!/bin/sh
       mkdir -p /var/lib/adlin/wireguard/
-      nsenter -n/run/netns/router /usr/bin/ask.sh
+      nsenter -n/run/netns/router -- /usr/bin/ask.sh
 
       # Network: workstations
       ip link add ethwks type veth peer name veth-wks
-      ip link set ethwks up
       ip link set ethwks netns router
-      ip netns exec router ip a add 192.168.6.254/24 dev ethwks
+      #ip link set ethwks up
-      grep MyIPv6= /var/lib/adlin/wireguard/adlin.conf > /dev/null &&
+      #ip netns exec router ip a add 192.168.6.254/24 dev ethwks
-        ip netns exec router ip a add $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf | sed "s#:[^:/]*/.*\$#1::1/96#") dev ethwks
+      #grep MyIPv6= /var/lib/adlin/wireguard/adlin.conf > /dev/null &&
+      #  ip netns exec router ip a add $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf | sed "s#:[^:/]*/.*\$#1::1/96#") dev ethwks
 
       # Network: servers
       ip link add ethsrv type veth peer name veth-srv
       ip link set ethsrv netns router
-      ip netns exec router ip link set ethsrv up
+      #ip netns exec router ip link set ethsrv up
-      ip netns exec router ip a add 172.23.42.1/24 dev ethsrv
+      #ip netns exec router ip a add 172.23.42.1/24 dev ethsrv
-      grep MyIPv6= /var/lib/adlin/wireguard/adlin.conf > /dev/null &&
+      #grep MyIPv6= /var/lib/adlin/wireguard/adlin.conf > /dev/null &&
-        ip netns exec router ip a add $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf | sed "s#:[^:/]*/.*\$#:1/96#") dev ethsrv
+      #  ip netns exec router ip a add $(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf | sed "s#:[^:/]*/.*\$#:1/96#") dev ethsrv
 
       ip netns add ns
       ip link add vethin-ns type veth peer name veth-ns
@@ -426,13 +516,27 @@ files:
 
       ip l add brwks type bridge
       ip link add veth-wks1 type veth peer name ethwks1
+      ip link add link ethwks1 name ethwks-dg1 type vlan id 10
       ip link add veth-wks2 type veth peer name ethwks2
+      ip link add link ethwks2 name ethwks-rh1 type vlan id 11
+      ip link add veth-wks3 type veth peer name ethwks3
+      ip link add link ethwks3 name ethwks-rh2 type vlan id 11
+      ip link add veth-wks4 type veth peer name ethwks4
+      ip link add link ethwks4 name ethwks-cm1 type vlan id 12
       ip link set veth-wks master brwks
       ip link set veth-wks1 master brwks
       ip link set veth-wks2 master brwks
+      ip link set veth-wks3 master brwks
+      ip link set veth-wks4 master brwks
       ip link set veth-wks up
       ip link set veth-wks1 up
       ip link set veth-wks2 up
+      ip link set veth-wks3 up
+      ip link set veth-wks4 up
+      ip link set ethwks1 up
+      ip link set ethwks2 up
+      ip link set ethwks3 up
+      ip link set ethwks4 up
       ip link set brwks up
       ip l | grep eth2 > /dev/null && {
         ip link set eth2 up
@@ -443,24 +547,119 @@ files:
   - path: etc/init.d/012-dl-fixes
     contents: |
       #!/bin/sh
-      ip netns exec router wget -O - --header "X-ADLIN-time: $(stat -c %Y /boot)" https://adlin.nemunai.re/fix-vm | sh
+      ip netns exec router wget -q -O - --header "X-ADLIN-time: $(stat -c %Y /boot)" https://adlin.nemunai.re/fix-vm | sh
+    mode: "0755"
+
+  - path: etc/init.d/014-default-router-config
+    contents: |
+      #!/bin/sh
+      [ -d /var/lib/adlin/wrt-etc ] || {
+          mkdir -p /var/lib/adlin/wrt-etc
+          cp -r /containers/services/mainrouter/lower/etc/* /var/lib/adlin/wrt-etc/
+
+          # Configured by students
+          rm -f /var/lib/adlin/wrt-etc/config/firewall
+          touch /var/lib/adlin/wrt-etc/config/firewall
+
+          # Avoid listening on IPv6
+          sed -r -i '/list\s+listen_http\s+\[::\]:80/d;/list\s+listen_https\s+\[::\]:443/d' /var/lib/adlin/wrt-etc/config/uhttpd
+
+          # Configure networking
+          cat > /var/lib/adlin/wrt-etc/config/network <<EOF
+
+      config interface 'loopback'
+          option ifname 'lo'
+          option proto 'static'
+          option ipaddr '127.0.0.1'
+          option netmask '255.0.0.0'
+
+      config interface 'wan'
+          option ifname 'eth0'
+          option proto 'dhcp'
+
+      EOF
+      }
+
+      [ -e /var/lib/adlin/wrt-config ] && {
+        mv /var/lib/adlin/wrt-config/* /var/lib/adlin/wrt-etc/config/
+        rmdir /var/lib/adlin/wrt-config
+      }
+      [ -f /var/lib/adlin/wrt-firewall.user ] && mv /var/lib/adlin/wrt-firewall.user /var/lib/adlin/wrt-etc/firewall.user
+      [ -f /var/lib/adlin/wrt-sysctl.conf ] && mv /var/lib/adlin/wrt-sysctl.conf /var/lib/adlin/wrt-etc/sysctl.conf
+
+      # Ensure custom rules are applied
+      grep -q /etc/firewall.user /var/lib/adlin/wrt-etc/config/firewall || cat >> /var/lib/adlin/wrt-etc/config/firewall <<EOF
+      config include
+              option path /etc/firewall.user
+      EOF
+
+      [ -f /var/lib/adlin/wireguard/adlin.conf ] && /usr/bin/update-wg-conf
+    mode: "0755"
+
+  - path: usr/bin/update-wg-conf
+    contents: |
+      #!/bin/sh
+      TUNPVKEY=$(sed 's/^.*PrivateKey = //p;d' /var/lib/adlin/wireguard/adlin.conf)
+      TUNIP=$(sed 's/^.*MyIPv6=//p;d' /var/lib/adlin/wireguard/adlin.conf)
+      SRVIP=$(echo "${TUNIP}" | sed "s#:[^:/]*/.*\$#:1/96#")
+      WKSIP=$(echo "${TUNIP}" | sed "s#:[^:/]*/.*\$#1::1/96#")
+
+      grep -q wireguard /var/lib/adlin/wrt-etc/config/network && {
+          sed -i -r "s#list addresses '[^']+'#list addresses '${TUNIP}'#;s#option private_key '[^']+'#option private_key '${TUNPVKEY}'#;" /var/lib/adlin/wrt-etc/config/network
+      }
+
+      grep -q wireguard /var/lib/adlin/wrt-etc/config/network || cat >> /var/lib/adlin/wrt-etc/config/network <<EOF
+      config interface 'wg0'
+          option proto 'wireguard'
+          option force_link '1'
+          list addresses '${TUNIP}'
+          option private_key '${TUNPVKEY}'
+
+      config wireguard_wg0
+          option public_key 'uSpqyYovvP4OG6wDxZ0Qkq45MfyK58PMUuPaLesY8FI='
+          option description 'maatma'
+          option persistent_keepalive '5'
+          list allowed_ips '::/0'
+          option endpoint_host '82.64.31.248'
+          option endpoint_port '42912'
+
+      config interface 'srv'
+          option ifname 'ethsrv'
+          option proto 'static'
+          option netmask '255.255.255.0'
+          option ipaddr '172.23.42.1'
+          list ip6addr '${SRVIP}'
+
+      config route6
+          option target '::/0'
+          option gateway '2a01:e0a:2b:2252::1'
+          option interface 'wg0'
+
+      EOF
+    mode: "0755"
+
+  - path: etc/init.d/014-get-ssh-keys
+    contents: |
+      #!/bin/sh
+      # Retrieve ssh keys
+      [ -f /var/lib/adlin/authorized_keys ] || nsenter -n/run/netns/router -- /usr/bin/wget -O /var/lib/adlin/authorized_keys https://cri.epita.fr/$(sed 's/^.*MyLogin=//p;d' /var/lib/adlin/wireguard/adlin.conf).keys
     mode: "0755"
 
 #  - path: etc/init.d/021-correction
 #    contents: |
 #      #!/bin/sh
-#      PS=$(pgrep systemd | head -1)
+#      PS=$(pgrep procd | head -1)
-#      nsenter -t "${PS}" -a sysctl -w net.ipv4.ip_forward=1
+#      nsenter -t "${PS}" -a -- sysctl -w net.ipv4.ip_forward=1
-#      nsenter -t "${PS}" -a sysctl -w net.ipv6.conf.all.forwarding=1
+#      nsenter -t "${PS}" -a -- sysctl -w net.ipv6.conf.all.forwarding=1
-#      nsenter -t "${PS}" -a sysctl -w net.ipv4.conf.ethsrv.route_localnet=1
+#      nsenter -t "${PS}" -a -- sysctl -w net.ipv4.conf.ethsrv.route_localnet=1
-#      nsenter -t "${PS}" -a iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+#      nsenter -t "${PS}" -a -- iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
-#      nsenter -t "${PS}" -a iptables -t nat -A POSTROUTING -o ethsrv -m addrtype --src-type LOCAL -j MASQUERADE
+#      nsenter -t "${PS}" -a -- iptables -t nat -A POSTROUTING -o ethsrv -m addrtype --src-type LOCAL -j MASQUERADE
-#      nsenter -t "${PS}" -a iptables -t nat -A PREROUTING -p tcp --dport 8052 -j DNAT --to 172.23.42.9
+#      nsenter -t "${PS}" -a -- iptables -t nat -A PREROUTING -p tcp --dport 8052 -j DNAT --to 172.23.42.9
-#      nsenter -t "${PS}" -a iptables -t nat -A OUTPUT -o lo -p tcp -m tcp --dport 8052 -j DNAT --to-destination 172.23.42.9
+#      nsenter -t "${PS}" -a -- iptables -t nat -A OUTPUT -o lo -p tcp -m tcp --dport 8052 -j DNAT --to-destination 172.23.42.9
-#      nsenter -t "${PS}" -a iptables -t nat -A PREROUTING -p tcp --dport 8080 -j DNAT --to 172.23.42.6
+#      nsenter -t "${PS}" -a -- iptables -t nat -A PREROUTING -p tcp --dport 8080 -j DNAT --to 172.23.42.6
-#      nsenter -t "${PS}" -a iptables -t nat -A OUTPUT -o lo -p tcp -m tcp --dport 8080 -j DNAT --to-destination 172.23.42.6
+#      nsenter -t "${PS}" -a -- iptables -t nat -A OUTPUT -o lo -p tcp -m tcp --dport 8080 -j DNAT --to-destination 172.23.42.6
-#      nsenter -t "${PS}" -a ip link set ethwks up
+#      nsenter -t "${PS}" -a -- ip link set ethwks up
-#      cat <<EOF | nsenter -t "${PS}" -a tee /etc/udhcpd.conf
+#      cat <<EOF | nsenter -t "${PS}" -a -- tee /etc/udhcpd.conf
 #      start  192.168.6.50
 #      end    192.168.6.200
 #      interface	ethwks
@@ -471,24 +670,43 @@ files:
 #      EOF
 #    mode: "0755"
 
-  - path: /etc/init.d/999-rw-passwd.sh
+  - path: /etc/init.d/800-rw-passwd.sh
     contents: |
       #!/bin/sh
-      sed -ri '/^root/s@^.*$@root:$6$QNuPvO59Xk4UO3le$3P0V2ef6dHlKgO1FHsKcPPgOvL.YeCOPFqfIVTtpYn5eEn3xkgGYeM1RMCQ9l/eTc6rRc.l.WeRe1iJVznVGj/:17968:0:99999:7:::@' /containers/services/mainrouter/rootfs/etc/shadow
+      sed -ri '/^root/s@^root:x:.*$@root:$1$ChIJgCib$1IYTTG.wKCXqbo1RMEQCc0:18706:0:99999:7:::@' /var/lib/adlin/wrt-etc/shadow
-      cp /etc/services /containers/services/mainrouter/rootfs/etc/services
+      mkdir -p /var/lib/adlin/wrt-etc/dropbear/
-      sed -ri '/^root/s@^.*$@root:$6$QNuPvO59Xk4UO3le$3P0V2ef6dHlKgO1FHsKcPPgOvL.YeCOPFqfIVTtpYn5eEn3xkgGYeM1RMCQ9l/eTc6rRc.l.WeRe1iJVznVGj/:17968:0:99999:7:::@' /containers/services/matrix/rootfs/etc/shadow
+      [ -f /var/lib/adlin/authorized_keys ] && ! [ -f /var/lib/adlin/wrt-etc/dropbear/authorized_keys ] && cp /var/lib/adlin/authorized_keys /var/lib/adlin/wrt-etc/dropbear/authorized_keys
-      cp /etc/services /containers/services/matrix/rootfs/etc/services
+
-      sed -ri '/^root/s@^.*$@root:$6$QNuPvO59Xk4UO3le$3P0V2ef6dHlKgO1FHsKcPPgOvL.YeCOPFqfIVTtpYn5eEn3xkgGYeM1RMCQ9l/eTc6rRc.l.WeRe1iJVznVGj/:17968:0:99999:7:::@' /containers/services/ns-auth/rootfs/etc/shadow
+      for svc in sshd-wks-rh1 sshd-wks-dg1
-      cp /etc/services /containers/services/web/rootfs/etc/services
+      do
-      sed -ri '/^root/s@^.*$@root:$6$QNuPvO59Xk4UO3le$3P0V2ef6dHlKgO1FHsKcPPgOvL.YeCOPFqfIVTtpYn5eEn3xkgGYeM1RMCQ9l/eTc6rRc.l.WeRe1iJVznVGj/:17968:0:99999:7:::@' /containers/services/web/rootfs/etc/shadow
+          mkdir -p /containers/services/${svc}/rootfs/root/.ssh
+          [ -f /var/lib/adlin/authorized_keys ] && cp /var/lib/adlin/authorized_keys /containers/services/${svc}/rootfs/root/.ssh/authorized_keys
+      done
+
+      for svc in matrix ns-auth ns-resolv web
+      do
+          sed -ri '/^root/s@^.*$@root:$6$4/xWhDY0JERkg6eg$ZKglx2TQT2ITM525di2aOhda9r9L.kUjYArPTF5pVTzi3/SRe.My4Z5Cg9vabK0ax2kZ.lLPFHA8v7jw.0N/8.:18707:0:99999:7:::@' /containers/services/${svc}/rootfs/etc/shadow
+          cp /etc/services /containers/services/${svc}/rootfs/etc/services
+          mkdir -p /containers/services/${svc}/rootfs/root/.ssh
+          [ -f /var/lib/adlin/authorized_keys ] && cp /var/lib/adlin/authorized_keys /containers/services/${svc}/rootfs/root/.ssh/authorized_keys
+          nsenter -t $(ctr -n services.linuxkit t ls | grep ${svc} | awk '{ print $2 }') -a ssh-keygen -A
+      done
+
       exit 0
     mode: "0555"
 
+  - path: /etc/init.d/850-later-use.sh
+    contents: |
+      #!/bin/sh
+
+      # This file is currently not used and is reserved for future use.
+    mode: "0755"
+
   - path: /etc/init.d/999-import-feeds.sh
     contents: |
       #!/bin/sh
       sleep 20
-      nsenter -t $(pgrep systemd | head -1) -a curl -s -u adeline:adlin2021 -d @- http://172.23.42.6:8080/v1/import < /root/feeds.opml 2> /dev/null > /dev/null
+      nsenter -t $(pgrep procd | head -1) -a -- curl -s -u adeline:adlin2022 -d @- http://172.23.42.6:8080/v1/import < /root/feeds.opml 2> /dev/null > /dev/null
       exit 0
     mode: "0555"
 
@@ -496,15 +714,18 @@ files:
     source: pkg/debian-tuto3/issue
     mode: "0444"
 
-  - path: /etc/init.d/500-showip.sh
+  - path: /etc/init.d/900-showip.sh
     contents: |
       #!/bin/sh
-      echo
+
-      cat /etc/issue.adlin
+      # Wait wg0
-      echo
+      nsenter -n/run/netns/router -- ip a show dev wg0 2> /dev/null > /dev/null || sleep 1
-      nsenter -n/run/netns/router ip -c a show dev wg0 2> /dev/null || nsenter -n/run/netns/router /usr/bin/ask.sh
+      nsenter -n/run/netns/router -- ip a show dev wg0 2> /dev/null > /dev/null || sleep 1
-      nsenter -n/run/netns/router ip -c a show dev eth0
+      nsenter -n/run/netns/router -- ip a show dev wg0 2> /dev/null > /dev/null || sleep 1
-      nsenter -n/run/netns/wks1 ip -c a show dev eth1 2> /dev/null || echo "Attachez une seconde carte ethernet à la VM pour pouvoir vous connecter à un poste de travail."
+      nsenter -n/run/netns/router -- ip a show dev wg0 2> /dev/null > /dev/null || sleep 1
+      nsenter -n/run/netns/router -- ip a show dev wg0 2> /dev/null > /dev/null || sleep 1
+
+      /usr/bin/welcome
       exit 0
     mode: "0555"
 
@@ -521,13 +742,18 @@ files:
   - path: /usr/bin/welcome
     contents: |
       #!/bin/sh
-      /etc/init.d/500-showip.sh
+      echo
+      cat /etc/issue.adlin
+      echo
+      nsenter -n/run/netns/router -- ip -c a show dev wg0 2> /dev/null || nsenter -n/run/netns/router /usr/bin/ask.sh
+      nsenter -n/run/netns/router -- ip -c a show dev eth0
+      nsenter -n/run/netns/wks-rh1 -- ip -c a show dev eth1 2> /dev/null || echo "Attachez une seconde carte ethernet à la VM pour pouvoir vous connecter à un poste de travail."
     mode: "0755"
 
   - path: /usr/sbin/sos-dhcp
     contents: |
       #!/bin/sh
-      nsenter -t $(pgrep dhcpcd) -a dhcpcd
+      nsenter -t $(pgrep procd) -a -- udhcpc -i eth0
     mode: "0755"
 
   - path: /usr/sbin/raz-my-dd
@@ -535,12 +761,12 @@ files:
       #!/bin/sh
       echo -n "Are you sure? Press Enter to continue... "
       read -s
-      dd if=/dev/zero of=/dev/sda size=10 bs=4096
+      dd if=/dev/zero of=/dev/sda count=10 bs=4096
       sync
       reboot -f
     mode: "0755"
 
-  - path: /usr/sbin/join-p0m
+  - path: /usr/sbin/join-maatma
     contents: |
       #!/bin/sh
       [ -s "/var/lib/adlin/wireguard/adlin.token" ] && echo "A token is already defined. You'll erase it it you continue."
@@ -548,7 +774,8 @@ files:
       read WGTOKEN
       mkdir -p /var/lib/adlin/wireguard/
       echo $WGTOKEN > /var/lib/adlin/wireguard/adlin.token
-      echo "Token saved. You need to reboot now."
+      nsenter -n/run/netns/router /usr/bin/ask.sh && /usr/bin/update-wg-conf && nsenter -t $(pgrep procd) -a -- /etc/init.d/network restart
+      echo "Token saved. You should reboot now."
     mode: "0755"
 
   - path: /usr/sbin/diagnostic
@@ -562,10 +789,10 @@ files:
       echo -n "Disque dur monté : "; df /var/lib/adlin/ | grep ^/dev/sd > /dev/null && ok || ko
       echo
       echo -n "Token Maatma renseigné : "; [ -s "/var/lib/adlin/wireguard/adlin.token" ] && ok -n || ko -n
-      echo -n " - Tunnel monté : "; nsenter -n/run/netns/router /usr/bin/wg show wg0 > /dev/null 2> /dev/null && ok -n || ko -n
+      echo -n " - Tunnel monté : "; nsenter -n/run/netns/router -- /usr/bin/wg show wg0 > /dev/null 2> /dev/null && ok -n || ko -n
-      echo -n " - Tunnel établit : "; [ "$(nsenter -n/run/netns/router /usr/bin/wg show wg0 dump | tail -1 | cut -f 6 2> /dev/null)" != "0" ] && ok || ko
+      nsenter -n/run/netns/router -- /usr/bin/wg show wg0 > /dev/null 2> /dev/null && echo -n " - Tunnel établi : "; [ "$(nsenter -n/run/netns/router -- /usr/bin/wg show wg0 dump | tail -1 | cut -f 6 2> /dev/null)" != "0" ] && ok || ko
-      echo -n "Ping Gateway Maatma : "; nsenter -n/run/netns/router ping -w 2 -c 1 2a01:e0a:2b:2252::1 > /dev/null 2> /dev/null && ok -n || ko -n
+      echo -n "Ping Gateway Maatma : "; nsenter -n/run/netns/router -- ping -w 2 -c 1 2a01:e0a:2b:2252::1 > /dev/null 2> /dev/null && ok -n || ko -n
-      echo -n " - Ping Internet IPv4 : "; nsenter -n/run/netns/router ping -w 2 -c 1 1.1.1.1 > /dev/null 2> /dev/null && ok || ko
+      echo -n " - Ping Internet IPv4 : "; nsenter -n/run/netns/router -- ping -w 2 -c 1 1.1.1.1 > /dev/null 2> /dev/null && ok || ko
       echo
       echo -n "États serveurs : ";
       ctr -n services.linuxkit t ls | grep mainrouter | grep RUNNING > /dev/null && ok -n "Routeur" || ko -n "Routeur"
@@ -584,13 +811,23 @@ files:
       echo
       echo
       echo -n "États Workstations : "
-      ctr -n services.linuxkit t ls | grep dhcpcd-wks1 | grep RUNNING > /dev/null && ok -n "WKS-1" || ko -n "WKS-1"
+      ctr -n services.linuxkit t ls | grep dhcpcd-wks-dg1 | grep RUNNING > /dev/null && ok -n "WKS-DG1" || ko -n "WKS-DG1"
       echo -n "("
-      ctr -n services.linuxkit t ls | grep sshd-wks1 | grep RUNNING > /dev/null && ok -n "SSH" || ko -n "SSH"
+      ctr -n services.linuxkit t ls | grep sshd-wks-dg1 | grep RUNNING > /dev/null && ok -n "SSH" || ko -n "SSH"
+      echo -n " "
+      ctr -n services.linuxkit t ls | grep minichecker-wks-dg1 | grep RUNNING > /dev/null && ok -n "CK" || ko -n "CK"
       echo -n ") "
-      ctr -n services.linuxkit t ls | grep dhcpcd-wks2 | grep RUNNING > /dev/null && ok -n "WKS-2" || ko -n "WKS-2"
+      ctr -n services.linuxkit t ls | grep dhcpcd-wks-rh1 | grep RUNNING > /dev/null && ok -n "WKS-RH1" || ko -n "WKS-RH1"
       echo -n "("
-      ctr -n services.linuxkit t ls | grep sshd-wks2 | grep RUNNING > /dev/null && ok -n "SSH" || ko -n "SSH"
+      ctr -n services.linuxkit t ls | grep sshd-wks-rh1 | grep RUNNING > /dev/null && ok -n "SSH" || ko -n "SSH"
+      echo -n ") "
+      ctr -n services.linuxkit t ls | grep dhcpcd-wks-rh2 | grep RUNNING > /dev/null && ok -n "WKS-RH2" || ko -n "WKS-RH2"
+      echo -n "("
+      ctr -n services.linuxkit t ls | grep minichecker-wks-rh2 | grep RUNNING > /dev/null && ok -n "CK" || ko -n "CK"
+      echo -n ") "
+      ctr -n services.linuxkit t ls | grep dhcpcd-wks-cm1 | grep RUNNING > /dev/null && ok -n "WKS-CM1" || ko -n "WKS-CM1"
+      echo -n "("
+      ctr -n services.linuxkit t ls | grep minichecker-wks-cm1 | grep RUNNING > /dev/null && ok -n "CK" || ko -n "CK"
       echo -n ") "
       echo
       echo
@@ -630,6 +867,7 @@ files:
               log-queries: yes
               log-replies: yes
               use-syslog: no
+              logfile: "/var/log/unbound.log"
               hide-identity: yes
               hide-version: yes
               qname-minimisation: yes
@@ -648,6 +886,23 @@ files:
              forward-addr: 2606:4700:4700::1111
     mode: "0440"
 
+  - path: etc/rinittab
+    contents: |
+      ::sysinit:/etc/init.d/rcS S boot
+      ::shutdown:/etc/init.d/rcS K shutdown
+
+    mode: "0644"
+
+  - path: etc/rshadow
+    contents: |
+      root:$1$ChIJgCib$1IYTTG.wKCXqbo1RMEQCc0:18706:0:99999:7:::
+      daemon:*:0:0:99999:7:::
+      ftp:*:0:0:99999:7:::
+      network:*:0:0:99999:7:::
+      nobody:*:0:0:99999:7:::
+      dnsmasq:x:0:0:99999:7:::
+    mode: "0640"
+
   - path: etc/wpasswd
     contents: |
       root:x:0:0:root:/root:/bin/bash
@@ -676,10 +931,9 @@ files:
       systemd-bus-proxy:x:106:108:systemd Bus Proxy,,,:/run/systemd:/bin/false
     mode: "0644"
 
-
   - path: etc/wshadow
     contents: |
-      root:$6$QNuPvO59Xk4UO3le$3P0V2ef6dHlKgO1FHsKcPPgOvL.YeCOPFqfIVTtpYn5eEn3xkgGYeM1RMCQ9l/eTc6rRc.l.WeRe1iJVznVGj/:17968:0:99999:7:::
+      root:$6$4/xWhDY0JERkg6eg$ZKglx2TQT2ITM525di2aOhda9r9L.kUjYArPTF5pVTzi3/SRe.My4Z5Cg9vabK0ax2kZ.lLPFHA8v7jw.0N/8.:18707:0:99999:7:::
       daemon:*:17575:0:99999:7:::
       bin:*:17575:0:99999:7:::
       sys:*:17575:0:99999:7:::
@@ -722,6 +976,85 @@ files:
       nameserver 2620:fe::fe
     mode: "0644"
 
+  - path: etc/rsysctl.conf
+    contents: |
+      # Do not edit, changes to this file will be lost on upgrades
+      # /etc/sysctl.conf can be used to customize sysctl settings
+
+      kernel.panic=3
+      kernel.core_pattern=/tmp/%e.%t.%p.%s.core
+      fs.suid_dumpable=2
+
+      fs.protected_hardlinks=1
+      fs.protected_symlinks=1
+
+      net.core.bpf_jit_enable=1
+
+      net.ipv4.conf.default.arp_ignore=1
+      net.ipv4.conf.all.arp_ignore=1
+      net.ipv4.icmp_echo_ignore_broadcasts=1
+      net.ipv4.icmp_ignore_bogus_error_responses=1
+      net.ipv4.igmp_max_memberships=100
+      net.ipv4.tcp_fin_timeout=30
+      net.ipv4.tcp_keepalive_time=120
+      net.ipv4.tcp_syncookies=1
+      net.ipv4.tcp_timestamps=1
+      net.ipv4.tcp_sack=1
+      net.ipv4.tcp_dsack=1
+    mode: "0644"
+
+  - path: etc/rpreinit
+    contents: |
+      #!/bin/sh
+      # Copyright (C) 2006-2015 OpenWrt.org
+      # Copyright (C) 2010 Vertical Communications
+
+      mkdir -p /var/lock
+      mount -t tmpfs none /var/lock
+
+      unset PREINIT
+      exec /sbin/procd
+    mode: "0755"
+
+  - path: lib/preinit/20_check_iso
+    contents: |
+      #!/bin/sh
+      # Copyright (C) 2006-2015 OpenWrt.org
+      # Copyright (C) 2010 Vertical Communications
+
+      check_for_iso() {
+          echo > /dev/null || ramoverlay
+      }
+
+      boot_hook_add preinit_mount_root check_for_iso
+    mode: "0644"
+
+  - path: lib/preinit/30_failsafe_wait
+    contents: |
+      #!/bin/sh
+      # Copyright (C) 2006-2015 OpenWrt.org
+      # Copyright (C) 2010 Vertical Communications
+    mode: "0644"
+
+  - path: lib/preinit/99_10_failsafe_login
+    contents: |
+      #!/bin/sh
+      # Copyright (C) 2006-2015 OpenWrt.org
+      # Copyright (C) 2010 Vertical Communications
+
+      failsafe_netlogin () {
+          dropbearkey -t rsa -s 1024 -f /tmp/dropbear_failsafe_host_key
+          dropbear -r /tmp/dropbear_failsafe_host_key <> /dev/null 2>&1
+      }
+
+      failsafe_shell() {
+          echo > /dev/null || ramoverlay
+      }
+
+      boot_hook_add failsafe failsafe_netlogin
+      boot_hook_add failsafe failsafe_shell
+    mode: "0644"
+
 trust:
   org:
     - linuxkit

tutorial/nat/netfilter.md

@@ -1,23 +1,30 @@
 \newpage
 
-Netfilter
+Routage
-=========
+=======
 
-Le projet `netfilter`[^netfilter] est l'implémentation de pare-feu au sein du
+Votre entreprise dispose d'un modeste routeur utilisant
-noyau Linux. Il s'agit d'un mécanisme de filtrage des paquets réseau basés sur
+[OpenWrt](https://openwrt.org/). Il s'agit d'une petite distribution Linux
-des règles, chargées par l'espace utilisateur dans le noyau. On utilise pour
+mettant à disposition une interface web pour configurer son routeur
-cela les programmes `nft` (du projet `nftables`), ou de manière historique
+facilement[^facilement].
-`iptables`.
 
-[^netfilter]: <https://netfilter.org/>
+[^facilement]: Si vous préférez, ce TP existe aussi en utilisant une simple
+    distribution Debian comme routeur. C'est tout aussi efficace et les mêmes
+    technologies sont en jeu. Demandez à votre professeur l'ISO si vous êtes
+    intéressés !
+
+Au sein du noyau Linux, le [projet `netfilter`](https://netfilter.org/) est
+l'implémentation de pare-feu standard. Il s'agit d'un mécanisme de filtrage des
+paquets réseau basés sur des règles, chargées par l'espace utilisateur dans le
+noyau. On utilise pour cela les programmes `nft` (du projet `nftables`), ou de
+manière historique `iptables`.
 
 Les deux projets ont une manière de fonctionner très similaire, mais il est
 important de ne pas les utiliser en même temps, sous peine de voir apparaître
 des problèmes incompréhensible à déboguer, plus ou moins aléatoirement.
 
 
-Réseau fonctionnel ?
+## Réseau fonctionnel ?
---------------------
 
 Première étape : avez-vous vérifié l'état du réseau sur le routeur ?
 
@@ -35,8 +42,7 @@ que vous devriez obtenir sont :
   contacter.
 
 
-Donner accès à Internet
+## Donner accès à Internet
------------------------
 
 Votre administrateur système vous assure que le serveur de noms est bien lancé
 et configuré comme demandé.
@@ -59,9 +65,53 @@ Test à passer :
 ```
 </div>
 
+Vous pouvez utiliser, par exemple `tcpdump`, pour comprendre ce qu'il se passe
+sur votre routeur :
 
-Exposer un service web sur Internet
+<div lang="en-US">
------------------------------------
+```
+    router# tcpdump -i ethsrv
+    router# tcpdump -i eth0 udp and port 53
+```
+</div>
+
+#### Attention : {-}
+
+Le serveur DNS résolveur met en cache les problèmes qu'il rencontre. Il vous
+faudra sans doute patienter une bonne minute, une fois que vous aurez la bonne
+configuration, afin qu'il tente à nouveau de contacter un serveur de noms pour
+faire une résolution. C'est un comportement normal.
+
+Depuis l'ISO en version 3.1, vous pouvez vous connecter sur la machine
+hébergeant le résolveur afin de le redémarrer manuellement.
+
+
+## Accéder aux autres serveurs du parc
+
+Depuis le routeur, vous pouvez vous SSH en utilisant le nom d'hôte attribué aux
+machines :
+
+<div lang="en-US">
+  - `ssh root@news`
+  - `ssh root@matrix`
+  - `ssh root@web`
+</div>
+
+
+Depuis l'extérieur, vous devez utiliser le routeur comme *bastion*. Avec SSH,
+utilisez l'option `-J` pour désigner une machine intermédiaire qui servira à
+accéder à la machine cible :
+
+<div lang="en-US">
+```
+    42sh$ ssh -J root@$EXT_ROUTER root@172.23.42.3
+```
+</div>
+
+
+## Exposer les services
+
+### Localement
 
 Vous avez compris comment vos machines peuvent accéder à Internet sans avoir
 pour autant d'IP routable sur Internet. Cependant, si cela répond parfaitement
@@ -73,13 +123,16 @@ depuis l'interface externe du routeur. Après configuration, depuis un
 navigateur sur votre poste, vous devriez pouvoir accéder à :
 
 <div lang="en-US">
-* `http://$EXT_ROUTER_IP:80/` : Vitrine
+* `http://$EXT_ROUTER_IP:8000/` : Vitrine
 * `http://$EXT_ROUTER_IP:8080/` : Miniflux
-* `http://$EXT_ROUTER_IP:8448/` : Matrix
+* `http://$EXT_ROUTER_IP:8008/` : Matrix
 </div>
 
+Notez bien qu'il s'agit là seulement d'un test avec l'IPv4 de votre routeur. Il
+n'est pas encore demandé de faire cela sur l'IPv6 routable sur Internet.
 
-### Miniflux
+
+### Utiliser Miniflux
 
 Utilisez le nom d'utilisateur `adeline` pour vous connecter à
 miniflux. N'oubliez pas de changer le mot de passe avant que quelqu'un
@@ -88,3 +141,11 @@ d'autre s'en charge à votre place !
 Si vos serveurs ont bien accès à Internet, vous pourrez mettre à jour
 la liste des flux pré-enregistrés dans miniflux, afin de faire un peu
 de veille !
+
+
+### On passe sur Internet ? (bonus)
+
+Si jusque là, tout se passe à merveille pour vous (c'est ce que je vous
+souhaite !), vous pouvez maintenant rediriger le port 80 et 443 arrivant sur
+l'IPv6 de votre routeur, vers ceux du serveur web. Sur lequel nous allons
+installer un reverse-proxy...

tutorial/nat/tutorial.md

@@ -3,14 +3,14 @@ title: Administration Linux avancée -- TP n^o^ 3
 subtitle:
 author: Pierre-Olivier *nemunaire* [Mercier]{.smallcaps}
 institute: EPITA
-date: Lundi 30 mars 2020
+date: Lundi 22 mars 2021
 abstract: |
   Durant ce troisième TP, nous allons faire un peu plus de réseau !
 
   \vspace{1em}
 
   Tous les éléments de ce TP (exercices et projet) sont à rendre à
-  <adlin@nemunai.re> au plus tard le dimanche 12 avril 2019 à 23
+  <adlin@nemunai.re> au plus tard le dimanche 11 avril 2021 à 23
   h 42. Consultez la dernière section de chaque partie pour plus d'information
   sur les éléments à rendre.
 

tutorial/nat/what.md

@@ -7,24 +7,32 @@ Présentation du système d'information
 -------------------------------------
 
 Le système d'information que vous allez avoir à gérer aujourd'hui est de taille
-moyenne : vous aurez en votre possession un serveur DNS résolveur, un serveur
+moyenne. Vous aurez en votre possession :
-DNS autoritaire, un serveur de base de données ainsi que plusieurs serveurs web
+
-(servant respectivement votre vitrine, [Miniflux](https://miniflux.app/), ainsi
+  - un serveur DNS résolveur,
-que [Matrix](https://matrix.org/)).
+  - un serveur DNS faisant autorité,
+  - un serveur de base de données,
+  - plusieurs serveurs web (servant respectivement votre vitrine,
+[Miniflux](https://miniflux.app/), ainsi que [Matrix](https://matrix.org/)),
+  - de nombreux postes de travail.
 
 Vous êtes l'administrateur réseau de l'entreprise et l'on vous demande de
 connecter tous ces services **correctement**.
 
+Voici un schéma de l'infrastructure complète dont vous allez disposer en
+démarrant l'ISO.
+
+![Architecture réseau à produire](topologie.png "Topologie")
+
 L'image ISO que vous avez récupérée met à votre disposition tout ce système
 d'information, déjà en partie configuré pour sa partie logicielle, il ne reste
 plus qu'à éditer la configuration du routeur.
 
-![Architecture réseau à produire](topologie.png "Topologie")
+Attention, contrairement au précédent TP, la majorité des modifications que
-
+vous allez effectuer ne seront pas persistantes d'un reboot à l'autre. À chaque
-Attention, contrairement au précédent TP, tout se fait en direct, il n'y a
+redémarrage de la machine virtuelle, vous retomberez dans un état initial.
-aucune sauvegarde effectuée : à chaque redémarrage de la machine virtuelle,
+Seuls quelques éléments comme le token de votre tunnel, la configuration du
-vous retomberez dans l'état initial : seuls quelques éléments comme le token de
+routeur et le contenu de la base de données persistent.
-votre tunnel et le contenu de la base de données.
 
 Accéder à la machine virtuelle
 ------------------------------
@@ -33,7 +41,7 @@ Une fois la machine virtuelle démarrée, vous devriez voir apparaître l'IP qu'
 obtenue la machine sur votre réseau :
 
 ```
-    You didn't define your token to connect the network. Please run here `join-p0m` and then reboot.
+    You didn't define your token to connect the network. Please run here `join-maatma` and then reboot.
     4: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
         link/ether 42:2c:63:f1:5a:49 brd ff:ff:ff:ff:ff:ff
 	    inet 10.42.23.211/24 brd 10.42.23.255 scope global eth0
@@ -50,15 +58,11 @@ Une ligne de commande est disponible au sein de la machine virtuelle à des fins
 de débogage, si nécessaire. Vous ne devriez normalement pas avoir à interagir
 avec celle-ci.
 
-Si vous assignez deux cartes réseau à la machine virtuelle, vous devriez voir
-apparaître l'IP de la carte `eth1` en dessous. Il s'agit d'une interface de
-station de travail.
-
 
 ### Tunnel Maatma
 
 Pour retrouver votre tunnel sur Internet, vous devez, dans la console de la
-machine virtuelle, utiliser la commande `join-p0m`.
+machine virtuelle, utiliser la commande `join-maatma`.
 
 Vous pouvez aussi écrire directement dans le fichier persistant :
 
@@ -68,13 +72,21 @@ Vous pouvez aussi écrire directement dans le fichier persistant :
 ```
 </div>
 
+Une fois le token renseigné, vous devez redémarrer la machine afin qu'il soit
+pris en compte.
+
+
 ### Connexions SSH
 
 Vous pouvez vous connecter en utilisant le compte `root` et le mot de passe
-`adlin2021`.
+`adlin2022`. Comme au précédent TP, si vous disposez d'une ou plusieurs [clefs
+SSH enregistrées au CRI](https://cri.epita.fr/users/nemunaire/ssh-keys/),
+celles-ci sont automatiquement ajoutées aux différents serveurs. Cependant,
+seuls les clefs RSA et DSA sont utilisables pour se connecter sur le routeur,
+le serveur SSH ne gère pas les courbes éliptiques.
 
-Notez que vous n'avez pas accès à la machine hébergeant la base de données, ni
+Notez que vous n'avez pas accès à la machine hébergeant la base de données, le
-à celle du résolveur DNS.
+lecteur de flux RSS, ni à celle du résolveur DNS.
 
 
 Objectif du TP
@@ -89,3 +101,53 @@ s'assurer que ce soit également le cas des stations de travail).
 
 Étant donné le caractère éphémère de vos actions, la réalisation d'un
 *Playbook* Ansible semble plutôt adaptée !
+
+
+Au secours ça ne marche pas !
+-----------------------------
+
+Pas de panique !
+
+Quelques commandes sont à votre disposition dans le shell de la machine
+virtuelle afin de vérifier que tout fonctionne correctement.
+
+
+### Monitoring
+
+Utilisez la commande `diagnostic` afin d'avoir une vue d'ensemble des éventuel
+problèmes.
+
+Tout est vert ? Toutes les machines sont opérationnelles !
+
+Une ou plusieurs machines sont rouges ? il y a effectivement un problème avec
+les machines concernées. Tentez de redémarrer une fois.
+
+Si le problème persiste, vous pouvez formater votre disque en utilisant la
+commande `raz-my-dd`. Ce qui vous permettra de retrouver la configuration
+d'origine.
+
+Pour les plus téméraires, les journaux des machines sont regroupés dans
+`/var/log` accessible uniquement dans la console de la machine virtuelle.
+
+
+### Retrouver mes IP
+
+Vous ne pouvez pas simplement taper `ip a` dans le terminal de votre machine
+virtuelle. Utilisez plutôt la commande `welcome` qui affichera à nouveau le
+message d'accueil avec les différentes IP associées à vos machines.
+
+
+### Rejoindre Maatma
+
+Utilisez la commande `join-maatma` dans la console de la machine virtuelle,
+puis redémarrez la machine.
+
+Vous pouvez aussi passer par l'interface de votre routeur pour ajouter une
+interface 'Wireguard VPN'. Utilisez les informations contenues sur la page
+[Tunnels de Maatma](https://adlin.nemunai.re/maatma/tunnels) pour remplir les
+différents champs.
+
+
+### `join-maatma` retourne une erreur 400
+
+Vérifiez votre token, il n'est pas valide.

tutorial/nat/wks.md

@@ -24,13 +24,8 @@ N'ayant pas, pour le moment, d'IPv6 sur votre réseau ; vous devez mettre en
 place un serveur DHCP sur votre réseau afin que vos collaborateurs puissent
 utiliser facilement le réseau.
 
-Configurez un serveur DHCP, tel quel `isc-dhcp-server` ou `udhcpd` afin de
-distribuer des IP correspondant au plan d'adressage. N'oubliez pas de définir
-le chemin permettant de sortir sur Internet ainsi que d'utiliser le résolveur
-de noms de domaine local.
-
 Une fois configuré, vous pouvez tenter de vous connecter aux services web (vous
-devriez avoir `wget` sur la station de travail accessible).
+devriez avoir `wget` sur les stations de travail accessibles).
 
 
 Zone démilitarisée et filtrage