mirror of
https://git.mirrors.martin98.com/https://github.com/ceph/ceph-csi.git
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bec6090996
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
88 lines
2.5 KiB
Go
88 lines
2.5 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"crypto"
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cryptorand "crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"fmt"
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"math"
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"math/big"
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"time"
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certutil "k8s.io/client-go/util/cert"
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)
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const (
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certificateBlockType = "CERTIFICATE"
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rsaKeySize = 2048
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duration365d = time.Hour * 24 * 365
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)
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// NewPrivateKey creates an RSA private key
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func NewPrivateKey() (*rsa.PrivateKey, error) {
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return rsa.GenerateKey(cryptorand.Reader, rsaKeySize)
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}
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// EncodeCertPEM returns PEM-endcoded certificate data
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func EncodeCertPEM(cert *x509.Certificate) []byte {
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block := pem.Block{
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Type: certificateBlockType,
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Bytes: cert.Raw,
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}
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return pem.EncodeToMemory(&block)
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}
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// NewSignedCert creates a signed certificate using the given CA certificate and key
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func NewSignedCert(cfg *certutil.Config, key crypto.Signer, caCert *x509.Certificate, caKey crypto.Signer) (*x509.Certificate, error) {
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// returns a uniform random value in [0, max-1), then add 1 to serial to make it a uniform random value in [1, max).
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serial, err := cryptorand.Int(cryptorand.Reader, new(big.Int).SetInt64(math.MaxInt64-1))
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if err != nil {
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return nil, err
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}
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serial = new(big.Int).Add(serial, big.NewInt(1))
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if len(cfg.CommonName) == 0 {
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return nil, fmt.Errorf("must specify a CommonName")
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}
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if len(cfg.Usages) == 0 {
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return nil, fmt.Errorf("must specify at least one ExtKeyUsage")
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}
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certTmpl := x509.Certificate{
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Subject: pkix.Name{
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CommonName: cfg.CommonName,
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Organization: cfg.Organization,
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},
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DNSNames: cfg.AltNames.DNSNames,
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IPAddresses: cfg.AltNames.IPs,
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SerialNumber: serial,
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NotBefore: caCert.NotBefore,
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NotAfter: time.Now().Add(duration365d).UTC(),
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KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
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ExtKeyUsage: cfg.Usages,
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}
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certDERBytes, err := x509.CreateCertificate(cryptorand.Reader, &certTmpl, caCert, key.Public(), caKey)
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if err != nil {
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return nil, err
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}
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return x509.ParseCertificate(certDERBytes)
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}
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