306 lines
13 KiB
Go
306 lines
13 KiB
Go
// +build !windows
|
|
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/rand"
|
|
"io/ioutil"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/slackhq/nebula/cert"
|
|
"github.com/stretchr/testify/assert"
|
|
"golang.org/x/crypto/ed25519"
|
|
)
|
|
|
|
//TODO: test file permissions
|
|
|
|
func Test_signSummary(t *testing.T) {
|
|
assert.Equal(t, "sign <flags>: create and sign a certificate", signSummary())
|
|
}
|
|
|
|
func Test_signHelp(t *testing.T) {
|
|
ob := &bytes.Buffer{}
|
|
signHelp(ob)
|
|
assert.Equal(
|
|
t,
|
|
"Usage of "+os.Args[0]+" sign <flags>: create and sign a certificate\n"+
|
|
" -ca-crt string\n"+
|
|
" \tOptional: path to the signing CA cert (default \"ca.crt\")\n"+
|
|
" -ca-key string\n"+
|
|
" \tOptional: path to the signing CA key (default \"ca.key\")\n"+
|
|
" -duration duration\n"+
|
|
" \tOptional: how long the cert should be valid for. The default is 1 second before the signing cert expires. Valid time units are seconds: \"s\", minutes: \"m\", hours: \"h\"\n"+
|
|
" -groups string\n"+
|
|
" \tOptional: comma separated list of groups\n"+
|
|
" -in-pub string\n"+
|
|
" \tOptional (if out-key not set): path to read a previously generated public key\n"+
|
|
" -ip string\n"+
|
|
" \tRequired: ip and network in CIDR notation to assign the cert\n"+
|
|
" -name string\n"+
|
|
" \tRequired: name of the cert, usually a hostname\n"+
|
|
" -out-crt string\n"+
|
|
" \tOptional: path to write the certificate to\n"+
|
|
" -out-key string\n"+
|
|
" \tOptional (if in-pub not set): path to write the private key to\n"+
|
|
" -out-qr string\n"+
|
|
" \tOptional: output a qr code image (png) of the certificate\n"+
|
|
" -subnets string\n"+
|
|
" \tOptional: comma separated list of subnet this cert can serve for\n",
|
|
ob.String(),
|
|
)
|
|
}
|
|
|
|
func Test_signCert(t *testing.T) {
|
|
ob := &bytes.Buffer{}
|
|
eb := &bytes.Buffer{}
|
|
|
|
// required args
|
|
|
|
assertHelpError(t, signCert([]string{"-ca-crt", "./nope", "-ca-key", "./nope", "-ip", "1.1.1.1/24", "-out-key", "nope", "-out-crt", "nope"}, ob, eb), "-name is required")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
assertHelpError(t, signCert([]string{"-ca-crt", "./nope", "-ca-key", "./nope", "-name", "test", "-out-key", "nope", "-out-crt", "nope"}, ob, eb), "-ip is required")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// cannot set -in-pub and -out-key
|
|
assertHelpError(t, signCert([]string{"-ca-crt", "./nope", "-ca-key", "./nope", "-name", "test", "-in-pub", "nope", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope"}, ob, eb), "cannot set both -in-pub and -out-key")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// failed to read key
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args := []string{"-ca-crt", "./nope", "-ca-key", "./nope", "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while reading ca-key: open ./nope: "+NoSuchFileError)
|
|
|
|
// failed to unmarshal key
|
|
ob.Reset()
|
|
eb.Reset()
|
|
caKeyF, err := ioutil.TempFile("", "sign-cert.key")
|
|
assert.Nil(t, err)
|
|
defer os.Remove(caKeyF.Name())
|
|
|
|
args = []string{"-ca-crt", "./nope", "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while parsing ca-key: input did not contain a valid PEM encoded block")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// Write a proper ca key for later
|
|
ob.Reset()
|
|
eb.Reset()
|
|
caPub, caPriv, _ := ed25519.GenerateKey(rand.Reader)
|
|
caKeyF.Write(cert.MarshalEd25519PrivateKey(caPriv))
|
|
|
|
// failed to read cert
|
|
args = []string{"-ca-crt", "./nope", "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while reading ca-crt: open ./nope: "+NoSuchFileError)
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// failed to unmarshal cert
|
|
ob.Reset()
|
|
eb.Reset()
|
|
caCrtF, err := ioutil.TempFile("", "sign-cert.crt")
|
|
assert.Nil(t, err)
|
|
defer os.Remove(caCrtF.Name())
|
|
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while parsing ca-crt: input did not contain a valid PEM encoded block")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// write a proper ca cert for later
|
|
ca := cert.NebulaCertificate{
|
|
Details: cert.NebulaCertificateDetails{
|
|
Name: "ca",
|
|
NotBefore: time.Now(),
|
|
NotAfter: time.Now().Add(time.Minute * 200),
|
|
PublicKey: caPub,
|
|
IsCA: true,
|
|
},
|
|
}
|
|
b, _ := ca.MarshalToPEM()
|
|
caCrtF.Write(b)
|
|
|
|
// failed to read pub
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-in-pub", "./nope", "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while reading in-pub: open ./nope: "+NoSuchFileError)
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// failed to unmarshal pub
|
|
ob.Reset()
|
|
eb.Reset()
|
|
inPubF, err := ioutil.TempFile("", "in.pub")
|
|
assert.Nil(t, err)
|
|
defer os.Remove(inPubF.Name())
|
|
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-in-pub", inPubF.Name(), "-duration", "100m"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while parsing in-pub: input did not contain a valid PEM encoded block")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// write a proper pub for later
|
|
ob.Reset()
|
|
eb.Reset()
|
|
inPub, _ := x25519Keypair()
|
|
inPubF.Write(cert.MarshalX25519PublicKey(inPub))
|
|
|
|
// bad ip cidr
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "a1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m"}
|
|
assertHelpError(t, signCert(args, ob, eb), "invalid ip definition: invalid CIDR address: a1.1.1.1/24")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// bad subnet cidr
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m", "-subnets", "a"}
|
|
assertHelpError(t, signCert(args, ob, eb), "invalid subnet definition: invalid CIDR address: a")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// mismatched ca key
|
|
_, caPriv2, _ := ed25519.GenerateKey(rand.Reader)
|
|
caKeyF2, err := ioutil.TempFile("", "sign-cert-2.key")
|
|
assert.Nil(t, err)
|
|
defer os.Remove(caKeyF2.Name())
|
|
caKeyF2.Write(cert.MarshalEd25519PrivateKey(caPriv2))
|
|
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF2.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "nope", "-out-key", "nope", "-duration", "100m", "-subnets", "a"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "refusing to sign, root certificate does not match private key")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// failed key write
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "/do/not/write/pleasecrt", "-out-key", "/do/not/write/pleasekey", "-duration", "100m", "-subnets", "10.1.1.1/32"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while writing out-key: open /do/not/write/pleasekey: "+NoSuchDirError)
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// create temp key file
|
|
keyF, err := ioutil.TempFile("", "test.key")
|
|
assert.Nil(t, err)
|
|
os.Remove(keyF.Name())
|
|
|
|
// failed cert write
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", "/do/not/write/pleasecrt", "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "error while writing out-crt: open /do/not/write/pleasecrt: "+NoSuchDirError)
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
os.Remove(keyF.Name())
|
|
|
|
// create temp cert file
|
|
crtF, err := ioutil.TempFile("", "test.crt")
|
|
assert.Nil(t, err)
|
|
os.Remove(crtF.Name())
|
|
|
|
// test proper cert with removed empty groups and subnets
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.Nil(t, signCert(args, ob, eb))
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// read cert and key files
|
|
rb, _ := ioutil.ReadFile(keyF.Name())
|
|
lKey, b, err := cert.UnmarshalX25519PrivateKey(rb)
|
|
assert.Len(t, b, 0)
|
|
assert.Nil(t, err)
|
|
assert.Len(t, lKey, 32)
|
|
|
|
rb, _ = ioutil.ReadFile(crtF.Name())
|
|
lCrt, b, err := cert.UnmarshalNebulaCertificateFromPEM(rb)
|
|
assert.Len(t, b, 0)
|
|
assert.Nil(t, err)
|
|
|
|
assert.Equal(t, "test", lCrt.Details.Name)
|
|
assert.Equal(t, "1.1.1.1/24", lCrt.Details.Ips[0].String())
|
|
assert.Len(t, lCrt.Details.Ips, 1)
|
|
assert.False(t, lCrt.Details.IsCA)
|
|
assert.Equal(t, []string{"1", "2", "3", "4", "5"}, lCrt.Details.Groups)
|
|
assert.Len(t, lCrt.Details.Subnets, 3)
|
|
assert.Len(t, lCrt.Details.PublicKey, 32)
|
|
assert.Equal(t, time.Duration(time.Minute*100), lCrt.Details.NotAfter.Sub(lCrt.Details.NotBefore))
|
|
|
|
sns := []string{}
|
|
for _, sn := range lCrt.Details.Subnets {
|
|
sns = append(sns, sn.String())
|
|
}
|
|
assert.Equal(t, []string{"10.1.1.1/32", "10.2.2.2/32", "10.5.5.5/32"}, sns)
|
|
|
|
issuer, _ := ca.Sha256Sum()
|
|
assert.Equal(t, issuer, lCrt.Details.Issuer)
|
|
|
|
assert.True(t, lCrt.CheckSignature(caPub))
|
|
|
|
// test proper cert with in-pub
|
|
os.Remove(keyF.Name())
|
|
os.Remove(crtF.Name())
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-in-pub", inPubF.Name(), "-duration", "100m", "-groups", "1"}
|
|
assert.Nil(t, signCert(args, ob, eb))
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// read cert file and check pub key matches in-pub
|
|
rb, _ = ioutil.ReadFile(crtF.Name())
|
|
lCrt, b, err = cert.UnmarshalNebulaCertificateFromPEM(rb)
|
|
assert.Len(t, b, 0)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, lCrt.Details.PublicKey, inPub)
|
|
|
|
// test refuse to sign cert with duration beyond root
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "1000m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "refusing to sign, root certificate constraints violated: certificate expires after signing certificate")
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// create valid cert/key for overwrite tests
|
|
os.Remove(keyF.Name())
|
|
os.Remove(crtF.Name())
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.Nil(t, signCert(args, ob, eb))
|
|
|
|
// test that we won't overwrite existing key file
|
|
os.Remove(crtF.Name())
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "refusing to overwrite existing key: "+keyF.Name())
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
|
|
// create valid cert/key for overwrite tests
|
|
os.Remove(keyF.Name())
|
|
os.Remove(crtF.Name())
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.Nil(t, signCert(args, ob, eb))
|
|
|
|
// test that we won't overwrite existing certificate file
|
|
os.Remove(keyF.Name())
|
|
ob.Reset()
|
|
eb.Reset()
|
|
args = []string{"-ca-crt", caCrtF.Name(), "-ca-key", caKeyF.Name(), "-name", "test", "-ip", "1.1.1.1/24", "-out-crt", crtF.Name(), "-out-key", keyF.Name(), "-duration", "100m", "-subnets", "10.1.1.1/32, , 10.2.2.2/32 , , ,, 10.5.5.5/32", "-groups", "1,, 2 , ,,,3,4,5"}
|
|
assert.EqualError(t, signCert(args, ob, eb), "refusing to overwrite existing cert: "+crtF.Name())
|
|
assert.Empty(t, ob.String())
|
|
assert.Empty(t, eb.String())
|
|
}
|