blob: ee0e6bfd45781986ca3e21bbb0eaacc577973f46 [file] [log] [blame]
package pac
import (
"bytes"
"gopkg.in/jcmturner/rpc.v1/mstypes"
)
// UPNDNSInfo implements https://msdn.microsoft.com/en-us/library/dd240468.aspx
type UPNDNSInfo struct {
UPNLength uint16 // An unsigned 16-bit integer in little-endian format that specifies the length, in bytes, of the UPN field.
UPNOffset uint16 // An unsigned 16-bit integer in little-endian format that contains the offset to the beginning of the buffer, in bytes, from the beginning of the UPN_DNS_INFO structure.
DNSDomainNameLength uint16
DNSDomainNameOffset uint16
Flags uint32
UPN string
DNSDomain string
}
const (
upnNoUPNAttr = 31 // The user account object does not have the userPrincipalName attribute ([MS-ADA3] section 2.349) set. A UPN constructed by concatenating the user name with the DNS domain name of the account domain is provided.
)
// Unmarshal bytes into the UPN_DNSInfo struct
func (k *UPNDNSInfo) Unmarshal(b []byte) (err error) {
//The UPN_DNS_INFO structure is a simple structure that is not NDR-encoded.
r := mstypes.NewReader(bytes.NewReader(b))
k.UPNLength, err = r.Uint16()
if err != nil {
return
}
k.UPNOffset, err = r.Uint16()
if err != nil {
return
}
k.DNSDomainNameLength, err = r.Uint16()
if err != nil {
return
}
k.DNSDomainNameOffset, err = r.Uint16()
if err != nil {
return
}
k.Flags, err = r.Uint32()
if err != nil {
return
}
ub := mstypes.NewReader(bytes.NewReader(b[k.UPNOffset : k.UPNOffset+k.UPNLength]))
db := mstypes.NewReader(bytes.NewReader(b[k.DNSDomainNameOffset : k.DNSDomainNameOffset+k.DNSDomainNameLength]))
u := make([]rune, k.UPNLength/2, k.UPNLength/2)
for i := 0; i < len(u); i++ {
var r uint16
r, err = ub.Uint16()
if err != nil {
return
}
u[i] = rune(r)
}
k.UPN = string(u)
d := make([]rune, k.DNSDomainNameLength/2, k.DNSDomainNameLength/2)
for i := 0; i < len(d); i++ {
var r uint16
r, err = db.Uint16()
if err != nil {
return
}
d[i] = rune(r)
}
k.DNSDomain = string(d)
return
}