VOL-1967 move api-server to separate repository
Change-Id: I21b85be74205805be15f8a85e53a903d16785671
diff --git a/vendor/gopkg.in/jcmturner/gokrb5.v7/types/HostAddress.go b/vendor/gopkg.in/jcmturner/gokrb5.v7/types/HostAddress.go
new file mode 100644
index 0000000..2f6a5a7
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/gokrb5.v7/types/HostAddress.go
@@ -0,0 +1,204 @@
+package types
+
+// Reference: https://www.ietf.org/rfc/rfc4120.txt
+// Section: 5.2.5
+
+import (
+ "bytes"
+ "fmt"
+ "net"
+
+ "github.com/jcmturner/gofork/encoding/asn1"
+ "gopkg.in/jcmturner/gokrb5.v7/iana/addrtype"
+)
+
+/*
+HostAddress and HostAddresses
+
+HostAddress ::= SEQUENCE {
+ addr-type [0] Int32,
+ address [1] OCTET STRING
+}
+
+-- NOTE: HostAddresses is always used as an OPTIONAL field and
+-- should not be empty.
+HostAddresses -- NOTE: subtly different from rfc1510,
+ -- but has a value mapping and encodes the same
+ ::= SEQUENCE OF HostAddress
+
+The host address encodings consist of two fields:
+
+addr-type
+ This field specifies the type of address that follows. Pre-
+ defined values for this field are specified in Section 7.5.3.
+
+address
+ This field encodes a single address of type addr-type.
+*/
+
+// HostAddresses implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.2.5
+type HostAddresses []HostAddress
+
+// HostAddress implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.2.5
+type HostAddress struct {
+ AddrType int32 `asn1:"explicit,tag:0"`
+ Address []byte `asn1:"explicit,tag:1"`
+}
+
+// GetHostAddress returns a HostAddress struct from a string in the format <hostname>:<port>
+func GetHostAddress(s string) (HostAddress, error) {
+ var h HostAddress
+ cAddr, _, err := net.SplitHostPort(s)
+ if err != nil {
+ return h, fmt.Errorf("invalid format of client address: %v", err)
+ }
+ ip := net.ParseIP(cAddr)
+ var ht int32
+ if ip.To4() != nil {
+ ht = addrtype.IPv4
+ ip = ip.To4()
+ } else if ip.To16() != nil {
+ ht = addrtype.IPv6
+ ip = ip.To16()
+ } else {
+ return h, fmt.Errorf("could not determine client's address types: %v", err)
+ }
+ h = HostAddress{
+ AddrType: ht,
+ Address: ip,
+ }
+ return h, nil
+}
+
+// GetAddress returns a string representation of the HostAddress.
+func (h *HostAddress) GetAddress() (string, error) {
+ var b []byte
+ _, err := asn1.Unmarshal(h.Address, &b)
+ return string(b), err
+}
+
+// LocalHostAddresses returns a HostAddresses struct for the local machines interface IP addresses.
+func LocalHostAddresses() (ha HostAddresses, err error) {
+ ifs, err := net.Interfaces()
+ if err != nil {
+ return
+ }
+ for _, iface := range ifs {
+ if iface.Flags&net.FlagLoopback != 0 || iface.Flags&net.FlagUp == 0 {
+ // Interface is either loopback of not up
+ continue
+ }
+ addrs, err := iface.Addrs()
+ if err != nil {
+ continue
+ }
+ for _, addr := range addrs {
+ var ip net.IP
+ switch v := addr.(type) {
+ case *net.IPNet:
+ ip = v.IP
+ case *net.IPAddr:
+ ip = v.IP
+ }
+ var a HostAddress
+ if ip.To16() == nil {
+ //neither IPv4 or IPv6
+ continue
+ }
+ if ip.To4() != nil {
+ //Is IPv4
+ a.AddrType = addrtype.IPv4
+ a.Address = ip.To4()
+ } else {
+ a.AddrType = addrtype.IPv6
+ a.Address = ip.To16()
+ }
+ ha = append(ha, a)
+ }
+ }
+ return ha, nil
+}
+
+// HostAddressesFromNetIPs returns a HostAddresses type from a slice of net.IP
+func HostAddressesFromNetIPs(ips []net.IP) (ha HostAddresses) {
+ for _, ip := range ips {
+ ha = append(ha, HostAddressFromNetIP(ip))
+ }
+ return ha
+}
+
+// HostAddressFromNetIP returns a HostAddress type from a net.IP
+func HostAddressFromNetIP(ip net.IP) HostAddress {
+ if ip.To4() != nil {
+ //Is IPv4
+ return HostAddress{
+ AddrType: addrtype.IPv4,
+ Address: ip.To4(),
+ }
+ }
+ return HostAddress{
+ AddrType: addrtype.IPv6,
+ Address: ip.To16(),
+ }
+}
+
+// HostAddressesEqual tests if two HostAddress slices are equal.
+func HostAddressesEqual(h, a []HostAddress) bool {
+ if len(h) != len(a) {
+ return false
+ }
+ for _, e := range a {
+ var found bool
+ for _, i := range h {
+ if e.Equal(i) {
+ found = true
+ break
+ }
+ }
+ if !found {
+ return false
+ }
+ }
+ return true
+}
+
+// HostAddressesContains tests if a HostAddress is contained in a HostAddress slice.
+func HostAddressesContains(h []HostAddress, a HostAddress) bool {
+ for _, e := range h {
+ if e.Equal(a) {
+ return true
+ }
+ }
+ return false
+}
+
+// Equal tests if the HostAddress is equal to another HostAddress provided.
+func (h *HostAddress) Equal(a HostAddress) bool {
+ if h.AddrType != a.AddrType {
+ return false
+ }
+ return bytes.Equal(h.Address, a.Address)
+}
+
+// Contains tests if a HostAddress is contained within the HostAddresses struct.
+func (h *HostAddresses) Contains(a HostAddress) bool {
+ for _, e := range *h {
+ if e.Equal(a) {
+ return true
+ }
+ }
+ return false
+}
+
+// Equal tests if a HostAddress slice is equal to the HostAddresses struct.
+func (h *HostAddresses) Equal(a []HostAddress) bool {
+ if len(*h) != len(a) {
+ return false
+ }
+ for _, e := range a {
+ if !h.Contains(e) {
+ return false
+ }
+ }
+ return true
+}