[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go b/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go
new file mode 100644
index 0000000..d48d2c1
--- /dev/null
+++ b/vendor/github.com/jcmturner/gokrb5/v8/types/PrincipalName.go
@@ -0,0 +1,67 @@
+package types
+
+import (
+ "strings"
+
+ "github.com/jcmturner/gokrb5/v8/iana/nametype"
+)
+
+// Reference: https://www.ietf.org/rfc/rfc4120.txt
+// Section: 5.2.2
+
+// PrincipalName implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.2.2
+type PrincipalName struct {
+ NameType int32 `asn1:"explicit,tag:0"`
+ NameString []string `asn1:"generalstring,explicit,tag:1"`
+}
+
+// NewPrincipalName creates a new PrincipalName from the name type int32 and name string provided.
+func NewPrincipalName(ntype int32, spn string) PrincipalName {
+ return PrincipalName{
+ NameType: ntype,
+ NameString: strings.Split(spn, "/"),
+ }
+}
+
+// GetSalt returns a salt derived from the PrincipalName.
+func (pn PrincipalName) GetSalt(realm string) string {
+ var sb []byte
+ sb = append(sb, realm...)
+ for _, n := range pn.NameString {
+ sb = append(sb, n...)
+ }
+ return string(sb)
+}
+
+// Equal tests if the PrincipalName is equal to the one provided.
+func (pn PrincipalName) Equal(n PrincipalName) bool {
+ if len(pn.NameString) != len(n.NameString) {
+ return false
+ }
+ //https://tools.ietf.org/html/rfc4120#section-6.2 - the name type is not significant when checking for equivalence
+ for i, s := range pn.NameString {
+ if n.NameString[i] != s {
+ return false
+ }
+ }
+ return true
+}
+
+// PrincipalNameString returns the PrincipalName in string form.
+func (pn PrincipalName) PrincipalNameString() string {
+ return strings.Join(pn.NameString, "/")
+}
+
+// ParseSPNString will parse a string in the format <service>/<name>@<realm>
+// a PrincipalName type will be returned with the name type set to KRB_NT_PRINCIPAL(1)
+// and the realm will be returned as a string. If the "@<realm>" suffix
+// is not included in the SPN then the value of realm string returned will be ""
+func ParseSPNString(spn string) (pn PrincipalName, realm string) {
+ if strings.Contains(spn, "@") {
+ s := strings.Split(spn, "@")
+ realm = s[len(s)-1]
+ spn = strings.TrimSuffix(spn, "@"+realm)
+ }
+ pn = NewPrincipalName(nametype.KRB_NT_PRINCIPAL, spn)
+ return
+}