[VOL-4290] Voltha go library updates for gRPC migration
Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBCred.go b/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBCred.go
new file mode 100644
index 0000000..536fdb9
--- /dev/null
+++ b/vendor/github.com/jcmturner/gokrb5/v8/messages/KRBCred.go
@@ -0,0 +1,102 @@
+package messages
+
+import (
+ "fmt"
+ "time"
+
+ "github.com/jcmturner/gofork/encoding/asn1"
+ "github.com/jcmturner/gokrb5/v8/crypto"
+ "github.com/jcmturner/gokrb5/v8/iana/asnAppTag"
+ "github.com/jcmturner/gokrb5/v8/iana/keyusage"
+ "github.com/jcmturner/gokrb5/v8/iana/msgtype"
+ "github.com/jcmturner/gokrb5/v8/krberror"
+ "github.com/jcmturner/gokrb5/v8/types"
+)
+
+type marshalKRBCred struct {
+ PVNO int `asn1:"explicit,tag:0"`
+ MsgType int `asn1:"explicit,tag:1"`
+ Tickets asn1.RawValue `asn1:"explicit,tag:2"`
+ EncPart types.EncryptedData `asn1:"explicit,tag:3"`
+}
+
+// KRBCred implements RFC 4120 KRB_CRED: https://tools.ietf.org/html/rfc4120#section-5.8.1.
+type KRBCred struct {
+ PVNO int
+ MsgType int
+ Tickets []Ticket
+ EncPart types.EncryptedData
+ DecryptedEncPart EncKrbCredPart
+}
+
+// EncKrbCredPart is the encrypted part of KRB_CRED.
+type EncKrbCredPart struct {
+ TicketInfo []KrbCredInfo `asn1:"explicit,tag:0"`
+ Nouce int `asn1:"optional,explicit,tag:1"`
+ Timestamp time.Time `asn1:"generalized,optional,explicit,tag:2"`
+ Usec int `asn1:"optional,explicit,tag:3"`
+ SAddress types.HostAddress `asn1:"optional,explicit,tag:4"`
+ RAddress types.HostAddress `asn1:"optional,explicit,tag:5"`
+}
+
+// KrbCredInfo is the KRB_CRED_INFO part of KRB_CRED.
+type KrbCredInfo struct {
+ Key types.EncryptionKey `asn1:"explicit,tag:0"`
+ PRealm string `asn1:"generalstring,optional,explicit,tag:1"`
+ PName types.PrincipalName `asn1:"optional,explicit,tag:2"`
+ Flags asn1.BitString `asn1:"optional,explicit,tag:3"`
+ AuthTime time.Time `asn1:"generalized,optional,explicit,tag:4"`
+ StartTime time.Time `asn1:"generalized,optional,explicit,tag:5"`
+ EndTime time.Time `asn1:"generalized,optional,explicit,tag:6"`
+ RenewTill time.Time `asn1:"generalized,optional,explicit,tag:7"`
+ SRealm string `asn1:"optional,explicit,ia5,tag:8"`
+ SName types.PrincipalName `asn1:"optional,explicit,tag:9"`
+ CAddr types.HostAddresses `asn1:"optional,explicit,tag:10"`
+}
+
+// Unmarshal bytes b into the KRBCred struct.
+func (k *KRBCred) Unmarshal(b []byte) error {
+ var m marshalKRBCred
+ _, err := asn1.UnmarshalWithParams(b, &m, fmt.Sprintf("application,explicit,tag:%v", asnAppTag.KRBCred))
+ if err != nil {
+ return processUnmarshalReplyError(b, err)
+ }
+ expectedMsgType := msgtype.KRB_CRED
+ if m.MsgType != expectedMsgType {
+ return krberror.NewErrorf(krberror.KRBMsgError, "message ID does not indicate a KRB_CRED. Expected: %v; Actual: %v", expectedMsgType, m.MsgType)
+ }
+ k.PVNO = m.PVNO
+ k.MsgType = m.MsgType
+ k.EncPart = m.EncPart
+ if len(m.Tickets.Bytes) > 0 {
+ k.Tickets, err = unmarshalTicketsSequence(m.Tickets)
+ if err != nil {
+ return krberror.Errorf(err, krberror.EncodingError, "error unmarshaling tickets within KRB_CRED")
+ }
+ }
+ return nil
+}
+
+// DecryptEncPart decrypts the encrypted part of a KRB_CRED.
+func (k *KRBCred) DecryptEncPart(key types.EncryptionKey) error {
+ b, err := crypto.DecryptEncPart(k.EncPart, key, keyusage.KRB_CRED_ENCPART)
+ if err != nil {
+ return krberror.Errorf(err, krberror.DecryptingError, "error decrypting KRB_CRED EncPart")
+ }
+ var denc EncKrbCredPart
+ err = denc.Unmarshal(b)
+ if err != nil {
+ return krberror.Errorf(err, krberror.EncodingError, "error unmarshaling encrypted part of KRB_CRED")
+ }
+ k.DecryptedEncPart = denc
+ return nil
+}
+
+// Unmarshal bytes b into the encrypted part of KRB_CRED.
+func (k *EncKrbCredPart) Unmarshal(b []byte) error {
+ _, err := asn1.UnmarshalWithParams(b, k, fmt.Sprintf("application,explicit,tag:%v", asnAppTag.EncKrbCredPart))
+ if err != nil {
+ return krberror.Errorf(err, krberror.EncodingError, "error unmarshaling EncKrbCredPart")
+ }
+ return nil
+}