blob: 98a9c5ab8bf2c62db864df06d29fb10c35868b6d [file] [log] [blame]
package mstypes
import (
"encoding/binary"
"encoding/hex"
"fmt"
)
// RPCSID implements https://msdn.microsoft.com/en-us/library/cc230364.aspx
type RPCSID struct {
Revision uint8 // An 8-bit unsigned integer that specifies the revision level of the SID. This value MUST be set to 0x01.
SubAuthorityCount uint8 // An 8-bit unsigned integer that specifies the number of elements in the SubAuthority array. The maximum number of elements allowed is 15.
IdentifierAuthority [6]byte // An RPC_SID_IDENTIFIER_AUTHORITY structure that indicates the authority under which the SID was created. It describes the entity that created the SID. The Identifier Authority value {0,0,0,0,0,5} denotes SIDs created by the NT SID authority.
SubAuthority []uint32 `ndr:"conformant"` // A variable length array of unsigned 32-bit integers that uniquely identifies a principal relative to the IdentifierAuthority. Its length is determined by SubAuthorityCount.
}
// String returns the string representation of the RPC_SID.
func (s *RPCSID) String() string {
var str string
b := append(make([]byte, 2, 2), s.IdentifierAuthority[:]...)
// For a strange reason this is read big endian: https://msdn.microsoft.com/en-us/library/dd302645.aspx
i := binary.BigEndian.Uint64(b)
if i >= 4294967296 {
str = fmt.Sprintf("S-1-0x%s", hex.EncodeToString(s.IdentifierAuthority[:]))
} else {
str = fmt.Sprintf("S-1-%d", i)
}
for _, sub := range s.SubAuthority {
str = fmt.Sprintf("%s-%d", str, sub)
}
return str
}