Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/client-go/util/cert/pem.go b/vendor/k8s.io/client-go/util/cert/pem.go
new file mode 100644
index 0000000..b99e366
--- /dev/null
+++ b/vendor/k8s.io/client-go/util/cert/pem.go
@@ -0,0 +1,269 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cert
+
+import (
+ "crypto/ecdsa"
+ "crypto/rsa"
+ "crypto/x509"
+ "encoding/pem"
+ "errors"
+ "fmt"
+)
+
+const (
+ // ECPrivateKeyBlockType is a possible value for pem.Block.Type.
+ ECPrivateKeyBlockType = "EC PRIVATE KEY"
+ // RSAPrivateKeyBlockType is a possible value for pem.Block.Type.
+ RSAPrivateKeyBlockType = "RSA PRIVATE KEY"
+ // PrivateKeyBlockType is a possible value for pem.Block.Type.
+ PrivateKeyBlockType = "PRIVATE KEY"
+ // PublicKeyBlockType is a possible value for pem.Block.Type.
+ PublicKeyBlockType = "PUBLIC KEY"
+ // CertificateBlockType is a possible value for pem.Block.Type.
+ CertificateBlockType = "CERTIFICATE"
+ // CertificateRequestBlockType is a possible value for pem.Block.Type.
+ CertificateRequestBlockType = "CERTIFICATE REQUEST"
+)
+
+// EncodePublicKeyPEM returns PEM-encoded public data
+func EncodePublicKeyPEM(key *rsa.PublicKey) ([]byte, error) {
+ der, err := x509.MarshalPKIXPublicKey(key)
+ if err != nil {
+ return []byte{}, err
+ }
+ block := pem.Block{
+ Type: PublicKeyBlockType,
+ Bytes: der,
+ }
+ return pem.EncodeToMemory(&block), nil
+}
+
+// EncodePrivateKeyPEM returns PEM-encoded private key data
+func EncodePrivateKeyPEM(key *rsa.PrivateKey) []byte {
+ block := pem.Block{
+ Type: RSAPrivateKeyBlockType,
+ Bytes: x509.MarshalPKCS1PrivateKey(key),
+ }
+ return pem.EncodeToMemory(&block)
+}
+
+// EncodeCertPEM returns PEM-endcoded certificate data
+func EncodeCertPEM(cert *x509.Certificate) []byte {
+ block := pem.Block{
+ Type: CertificateBlockType,
+ Bytes: cert.Raw,
+ }
+ return pem.EncodeToMemory(&block)
+}
+
+// ParsePrivateKeyPEM returns a private key parsed from a PEM block in the supplied data.
+// Recognizes PEM blocks for "EC PRIVATE KEY", "RSA PRIVATE KEY", or "PRIVATE KEY"
+func ParsePrivateKeyPEM(keyData []byte) (interface{}, error) {
+ var privateKeyPemBlock *pem.Block
+ for {
+ privateKeyPemBlock, keyData = pem.Decode(keyData)
+ if privateKeyPemBlock == nil {
+ break
+ }
+
+ switch privateKeyPemBlock.Type {
+ case ECPrivateKeyBlockType:
+ // ECDSA Private Key in ASN.1 format
+ if key, err := x509.ParseECPrivateKey(privateKeyPemBlock.Bytes); err == nil {
+ return key, nil
+ }
+ case RSAPrivateKeyBlockType:
+ // RSA Private Key in PKCS#1 format
+ if key, err := x509.ParsePKCS1PrivateKey(privateKeyPemBlock.Bytes); err == nil {
+ return key, nil
+ }
+ case PrivateKeyBlockType:
+ // RSA or ECDSA Private Key in unencrypted PKCS#8 format
+ if key, err := x509.ParsePKCS8PrivateKey(privateKeyPemBlock.Bytes); err == nil {
+ return key, nil
+ }
+ }
+
+ // tolerate non-key PEM blocks for compatibility with things like "EC PARAMETERS" blocks
+ // originally, only the first PEM block was parsed and expected to be a key block
+ }
+
+ // we read all the PEM blocks and didn't recognize one
+ return nil, fmt.Errorf("data does not contain a valid RSA or ECDSA private key")
+}
+
+// ParsePublicKeysPEM is a helper function for reading an array of rsa.PublicKey or ecdsa.PublicKey from a PEM-encoded byte array.
+// Reads public keys from both public and private key files.
+func ParsePublicKeysPEM(keyData []byte) ([]interface{}, error) {
+ var block *pem.Block
+ keys := []interface{}{}
+ for {
+ // read the next block
+ block, keyData = pem.Decode(keyData)
+ if block == nil {
+ break
+ }
+
+ // test block against parsing functions
+ if privateKey, err := parseRSAPrivateKey(block.Bytes); err == nil {
+ keys = append(keys, &privateKey.PublicKey)
+ continue
+ }
+ if publicKey, err := parseRSAPublicKey(block.Bytes); err == nil {
+ keys = append(keys, publicKey)
+ continue
+ }
+ if privateKey, err := parseECPrivateKey(block.Bytes); err == nil {
+ keys = append(keys, &privateKey.PublicKey)
+ continue
+ }
+ if publicKey, err := parseECPublicKey(block.Bytes); err == nil {
+ keys = append(keys, publicKey)
+ continue
+ }
+
+ // tolerate non-key PEM blocks for backwards compatibility
+ // originally, only the first PEM block was parsed and expected to be a key block
+ }
+
+ if len(keys) == 0 {
+ return nil, fmt.Errorf("data does not contain any valid RSA or ECDSA public keys")
+ }
+ return keys, nil
+}
+
+// ParseCertsPEM returns the x509.Certificates contained in the given PEM-encoded byte array
+// Returns an error if a certificate could not be parsed, or if the data does not contain any certificates
+func ParseCertsPEM(pemCerts []byte) ([]*x509.Certificate, error) {
+ ok := false
+ certs := []*x509.Certificate{}
+ for len(pemCerts) > 0 {
+ var block *pem.Block
+ block, pemCerts = pem.Decode(pemCerts)
+ if block == nil {
+ break
+ }
+ // Only use PEM "CERTIFICATE" blocks without extra headers
+ if block.Type != CertificateBlockType || len(block.Headers) != 0 {
+ continue
+ }
+
+ cert, err := x509.ParseCertificate(block.Bytes)
+ if err != nil {
+ return certs, err
+ }
+
+ certs = append(certs, cert)
+ ok = true
+ }
+
+ if !ok {
+ return certs, errors.New("data does not contain any valid RSA or ECDSA certificates")
+ }
+ return certs, nil
+}
+
+// parseRSAPublicKey parses a single RSA public key from the provided data
+func parseRSAPublicKey(data []byte) (*rsa.PublicKey, error) {
+ var err error
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil {
+ if cert, err := x509.ParseCertificate(data); err == nil {
+ parsedKey = cert.PublicKey
+ } else {
+ return nil, err
+ }
+ }
+
+ // Test if parsed key is an RSA Public Key
+ var pubKey *rsa.PublicKey
+ var ok bool
+ if pubKey, ok = parsedKey.(*rsa.PublicKey); !ok {
+ return nil, fmt.Errorf("data doesn't contain valid RSA Public Key")
+ }
+
+ return pubKey, nil
+}
+
+// parseRSAPrivateKey parses a single RSA private key from the provided data
+func parseRSAPrivateKey(data []byte) (*rsa.PrivateKey, error) {
+ var err error
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParsePKCS1PrivateKey(data); err != nil {
+ if parsedKey, err = x509.ParsePKCS8PrivateKey(data); err != nil {
+ return nil, err
+ }
+ }
+
+ // Test if parsed key is an RSA Private Key
+ var privKey *rsa.PrivateKey
+ var ok bool
+ if privKey, ok = parsedKey.(*rsa.PrivateKey); !ok {
+ return nil, fmt.Errorf("data doesn't contain valid RSA Private Key")
+ }
+
+ return privKey, nil
+}
+
+// parseECPublicKey parses a single ECDSA public key from the provided data
+func parseECPublicKey(data []byte) (*ecdsa.PublicKey, error) {
+ var err error
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil {
+ if cert, err := x509.ParseCertificate(data); err == nil {
+ parsedKey = cert.PublicKey
+ } else {
+ return nil, err
+ }
+ }
+
+ // Test if parsed key is an ECDSA Public Key
+ var pubKey *ecdsa.PublicKey
+ var ok bool
+ if pubKey, ok = parsedKey.(*ecdsa.PublicKey); !ok {
+ return nil, fmt.Errorf("data doesn't contain valid ECDSA Public Key")
+ }
+
+ return pubKey, nil
+}
+
+// parseECPrivateKey parses a single ECDSA private key from the provided data
+func parseECPrivateKey(data []byte) (*ecdsa.PrivateKey, error) {
+ var err error
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParseECPrivateKey(data); err != nil {
+ return nil, err
+ }
+
+ // Test if parsed key is an ECDSA Private Key
+ var privKey *ecdsa.PrivateKey
+ var ok bool
+ if privKey, ok = parsedKey.(*ecdsa.PrivateKey); !ok {
+ return nil, fmt.Errorf("data doesn't contain valid ECDSA Private Key")
+ }
+
+ return privKey, nil
+}