1 package com.android.anqp.eap; 2 3 import java.net.ProtocolException; 4 import java.nio.ByteBuffer; 5 import java.nio.ByteOrder; 6 7 import static com.android.anqp.Constants.BYTE_MASK; 8 import static com.android.anqp.Constants.INT_MASK; 9 import static com.android.anqp.Constants.SHORT_MASK; 10 11 /** 12 * An EAP authentication parameter, IEEE802.11-2012, table 8-188 13 */ 14 public class ExpandedEAPMethod implements AuthParam { 15 16 private final EAP.AuthInfoID mAuthInfoID; 17 private final int mVendorID; 18 private final long mVendorType; 19 ExpandedEAPMethod(EAP.AuthInfoID authInfoID, int length, ByteBuffer payload)20 public ExpandedEAPMethod(EAP.AuthInfoID authInfoID, int length, ByteBuffer payload) 21 throws ProtocolException { 22 if (length != 7) { 23 throw new ProtocolException("Bad length: " + payload.remaining()); 24 } 25 26 mAuthInfoID = authInfoID; 27 28 ByteBuffer vndBuffer = payload.duplicate().order(ByteOrder.BIG_ENDIAN); 29 30 int id = vndBuffer.getShort() & SHORT_MASK; 31 id = (id << Byte.SIZE) | (vndBuffer.get() & BYTE_MASK); 32 mVendorID = id; 33 mVendorType = vndBuffer.getInt() & INT_MASK; 34 35 payload.position(payload.position()+7); 36 } 37 ExpandedEAPMethod(EAP.AuthInfoID authInfoID, int vendorID, long vendorType)38 public ExpandedEAPMethod(EAP.AuthInfoID authInfoID, int vendorID, long vendorType) { 39 mAuthInfoID = authInfoID; 40 mVendorID = vendorID; 41 mVendorType = vendorType; 42 } 43 44 @Override getAuthInfoID()45 public EAP.AuthInfoID getAuthInfoID() { 46 return mAuthInfoID; 47 } 48 49 @Override hashCode()50 public int hashCode() { 51 return (mAuthInfoID.hashCode() * 31 + mVendorID) * 31 + (int) mVendorType; 52 } 53 54 @Override equals(Object thatObject)55 public boolean equals(Object thatObject) { 56 if (thatObject == this) { 57 return true; 58 } else if (thatObject == null || thatObject.getClass() != ExpandedEAPMethod.class) { 59 return false; 60 } else { 61 ExpandedEAPMethod that = (ExpandedEAPMethod) thatObject; 62 return that.getVendorID() == getVendorID() && that.getVendorType() == getVendorType(); 63 } 64 } 65 getVendorID()66 public int getVendorID() { 67 return mVendorID; 68 } 69 getVendorType()70 public long getVendorType() { 71 return mVendorType; 72 } 73 74 @Override toString()75 public String toString() { 76 return "Auth method " + mAuthInfoID + ", id " + mVendorID + ", type " + mVendorType + "\n"; 77 } 78 } 79