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Introduce overrideID option to allow multiple tunnels in parellel

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This commit is contained in:
nemunaire 2022-04-30 02:41:12 +02:00
parent 9043bafe3d
commit 7187a7d187
6 changed files with 32 additions and 30 deletions
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1
libadlin/db.go
View File

@ -141,6 +141,7 @@ CREATE TABLE IF NOT EXISTS student_tunnel_tokens(
time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
pubkey BLOB(50) DEFAULT NULL,
suffixip INTEGER NOT NULL,
idoverride INTEGER NOT NULL DEFAULT 0,
version INTEGER NOT NULL,
FOREIGN KEY(id_student) REFERENCES students(id_student)
) DEFAULT CHARACTER SET = utf8 COLLATE = utf8_bin;

43
libadlin/tunnel.go
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@ -28,13 +28,13 @@ 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))
func StudentIP(idstd int64, overrideid int) net.IP {
return net.ParseIP(fmt.Sprintf("2a01:e0a:2b:2252:%x%x::", overrideid, idstd))
}
func StudentNet(idstd int64) *net.IPNet {
func StudentNet(idstd int64, overrideid int) *net.IPNet {
return &net.IPNet{
IP: StudentIP(idstd),
IP: StudentIP(idstd, overrideid),
Mask: net.CIDRMask(StdNetmask, 128),
}
}
@ -113,12 +113,13 @@ func readWgDump() (wgd map[string]*WGDump, err error) {
}
type TunnelToken struct {
token []byte
TokenText string
IdStudent int64
PubKey []byte
Time time.Time
SuffixIP int
token []byte
TokenText string
IdStudent int64
PubKey []byte
Time time.Time
SuffixIP int
OverrideID int
// Version stores the TP number where the token is used
Version int
Dump *WGDump
@ -126,14 +127,14 @@ type TunnelToken struct {
func (tt *TunnelToken) GetStudentIP() string {
if tt.SuffixIP == 0 {
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent).String(), 1)
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent, tt.OverrideID).String(), 1)
} else {
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent).String(), tt.SuffixIP)
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent, tt.OverrideID).String(), tt.SuffixIP)
}
}
func (tt *TunnelToken) GetServerIP(suffix int) string {
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent).String(), suffix)
return fmt.Sprintf("%s%x", StudentIP(tt.IdStudent, tt.OverrideID).String(), suffix)
}
func (tt *TunnelToken) GenKeySign() []byte {
@ -151,7 +152,7 @@ func TokenFromText(token string) []byte {
func 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=? ORDER BY time DESC", token).Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.Version)
err = DBQueryRow("SELECT token, token_text, id_student, pubkey, time, suffixip, idoverride, version FROM student_tunnel_tokens WHERE token=? ORDER BY time DESC", token).Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.OverrideID, &t.Version)
if err == nil && t.PubKey != nil {
if wgd, errr := readWgDump(); errr == nil {
if v, ok := wgd[base64.StdEncoding.EncodeToString(t.PubKey)]; ok {
@ -178,7 +179,7 @@ func (student *Student) NewTunnelToken(suffixip int) (t *TunnelToken, err error)
}
func (student *Student) GetTunnelTokens() (ts []*TunnelToken, err error) {
if rows, errr := DBQuery("SELECT token, token_text, id_student, pubkey, time, suffixip, version FROM student_tunnel_tokens WHERE id_student = ? ORDER BY time DESC", student.Id); errr != nil {
if rows, errr := DBQuery("SELECT token, token_text, id_student, pubkey, time, suffixip, idoverride, version FROM student_tunnel_tokens WHERE id_student = ? ORDER BY time DESC", student.Id); errr != nil {
return nil, errr
} else if wgd, errr := readWgDump(); errr != nil {
return nil, errr
@ -187,7 +188,7 @@ func (student *Student) GetTunnelTokens() (ts []*TunnelToken, err error) {
for rows.Next() {
t := &TunnelToken{}
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.Version); err != nil {
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.OverrideID, &t.Version); err != nil {
return
}
if t.PubKey != nil {
@ -206,7 +207,7 @@ func (student *Student) GetTunnelTokens() (ts []*TunnelToken, err error) {
}
func (student *Student) GetActivesTunnels() (ts []*TunnelToken, err error) {
if rows, errr := DBQuery("SELECT token, token_text, id_student, pubkey, time, suffixip, version FROM student_tunnel_tokens WHERE id_student = ? ORDER BY time DESC", student.Id); errr != nil {
if rows, errr := DBQuery("SELECT token, token_text, id_student, pubkey, time, suffixip, idoverride, version FROM student_tunnel_tokens WHERE id_student = ? ORDER BY time DESC", student.Id); errr != nil {
return nil, errr
} else if wgd, errr := readWgDump(); errr != nil {
return nil, errr
@ -215,7 +216,7 @@ func (student *Student) GetActivesTunnels() (ts []*TunnelToken, err error) {
for rows.Next() {
t := &TunnelToken{}
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.Version); err != nil {
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.OverrideID, &t.Version); err != nil {
return
}
if t.PubKey != nil {
@ -259,7 +260,7 @@ func (student *Student) GetActivesTunnelsPubKey() (ts []ed25519.PublicKey, err e
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)
err = DBQueryRow("SELECT token, token_text, id_student, pubkey, time, suffixip, idoverride, 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.OverrideID, &t.Version)
if err == nil && t.PubKey != nil {
if wgd, errr := readWgDump(); errr == nil {
if v, ok := wgd[base64.StdEncoding.EncodeToString(t.PubKey)]; ok {
@ -296,14 +297,14 @@ func (t *TunnelToken) Delete() (int64, error) {
}
func GetStudentsTunnels() (ts []*TunnelToken, err error) {
if rows, errr := DBQuery("SELECT T.token, T.token_text, T.id_student, T.pubkey, T.time, T.suffixip, T.version FROM student_tunnel_tokens T INNER JOIN (SELECT B.id_student, MAX(B.time) AS time FROM student_tunnel_tokens B WHERE B.pubkey IS NOT NULL GROUP BY id_student) L ON T.id_student = L.id_student AND T.time = L.time"); errr != nil {
if rows, errr := DBQuery("SELECT T.token, T.token_text, T.id_student, T.pubkey, T.time, T.suffixip, T.idoverride, T.version FROM student_tunnel_tokens T INNER JOIN (SELECT B.id_student, MAX(B.time) AS time, B.idoverride FROM student_tunnel_tokens B WHERE B.pubkey IS NOT NULL GROUP BY id_student, idoverride) L ON T.id_student = L.id_student AND T.time = L.time"); errr != nil {
return nil, errr
} else {
defer rows.Close()
for rows.Next() {
t := &TunnelToken{}
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.Version); err != nil {
if err = rows.Scan(&t.token, &t.TokenText, &t.IdStudent, &t.PubKey, &t.Time, &t.SuffixIP, &t.OverrideID, &t.Version); err != nil {
return
}
ts = append(ts, t)

2
token-validator/check.go
View File

@ -28,7 +28,7 @@ func init() {
}))
}
func check_GLUE_respond(student *adlin.Student, domain string, ip string) (err error) {
if !strings.HasPrefix(ip, adlin.StudentIP(student.Id).String()) {
if !strings.HasPrefix(ip, adlin.StudentIP(student.Id, 0).String()) {
return fmt.Errorf("%q is not your IP range", ip)
}

4
token-validator/domain.go
View File

@ -312,8 +312,8 @@ func AddAssociatedDomains(student *adlin.Student, aaaa net.IP) (err error) {
}
if aaaa == nil {
aaaa = net.ParseIP(adlin.StudentIP(student.Id).String() + "1")
} else if !adlin.StudentNet(student.Id).Contains(aaaa) {
aaaa = net.ParseIP(adlin.StudentIP(student.Id, 0).String() + "1")
} else if !adlin.StudentNet(student.Id, 0).Contains(aaaa) {
return errors.New("The associated IP has to be in your IP range.")
}

2
token-validator/ip.go
View File

@ -57,7 +57,7 @@ func showIPs(_ httprouter.Params, body []byte) (interface{}, error) {
func GetStudentTunnelIPs(student *adlin.Student) (ips []string) {
if ts, err := student.GetActivesTunnels(); err != nil || len(ts) == 0 || ts[0].SuffixIP == 0 {
ips = append(ips, adlin.StudentIP(student.Id).String()+"1")
ips = append(ips, adlin.StudentIP(student.Id, 0).String()+"1")
} else {
for _, t := range ts {
ips = append(ips, t.GetStudentIP())

10
token-validator/wg.go
View File

@ -31,7 +31,7 @@ func init() {
})
router.GET("/api/wg/", apiAuthHandler(showWgTunnel))
router.GET("/api/wginfo", apiAuthHandler(func(student *adlin.Student, ps httprouter.Params, body []byte) (interface{}, error) {
return getTunnelInfo(student.Id), nil
return getTunnelInfo(student.Id, 0), nil
}))
router.POST("/api/wg/", apiAuthHandler(genWgToken))
router.GET("/api/wg/:token", getWgTunnelInfo)
@ -59,13 +59,13 @@ type TunnelInfo struct {
SrvGW6 string `json:"srv_gw6"`
}
func getTunnelInfo(student int64) TunnelInfo {
func getTunnelInfo(student int64, idoverride int) TunnelInfo {
srv_pubkey, _ := base64.StdEncoding.DecodeString("uSpqyYovvP4OG6wDxZ0Qkq45MfyK58PMUuPaLesY8FI=")
return TunnelInfo{
Status: "OK",
SrvPubKey: srv_pubkey,
SrvPort: 42912,
CltIPv6: adlin.StudentIP(student),
CltIPv6: adlin.StudentIP(student, idoverride),
CltRange: adlin.StdNetmask,
SrvGW6: "2a01:e0a:2b:2252::1",
}
@ -133,7 +133,7 @@ func getWgTunnelInfo(w http.ResponseWriter, r *http.Request, ps httprouter.Param
syncWgConf()
tinfo := getTunnelInfo(token.IdStudent)
tinfo := getTunnelInfo(token.IdStudent, token.OverrideID)
var student *adlin.Student
student, err = adlin.GetStudent(int(token.IdStudent))
@ -218,7 +218,7 @@ func GenWGConfig(w io.Writer) error {
#IdStudent = %d
PublicKey = %s
AllowedIPs = %s/%d
`, t.IdStudent, base64.StdEncoding.EncodeToString(t.PubKey), adlin.StudentIP(t.IdStudent), 80)))
`, t.IdStudent, base64.StdEncoding.EncodeToString(t.PubKey), adlin.StudentIP(t.IdStudent, t.OverrideID), 80)))
}
return nil