| package com.android.server.wifi.anqp; |
| |
| import java.net.ProtocolException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import static com.android.server.wifi.anqp.Constants.BYTE_MASK; |
| import static com.android.server.wifi.anqp.Constants.SHORT_MASK; |
| |
| /** |
| * An OSU Provider, as specified in |
| * Wi-Fi Alliance Hotspot 2.0 (Release 2) Technical Specification - Version 5.00, |
| * section 4.8.1 |
| */ |
| public class OSUProvider { |
| |
| public enum OSUMethod {OmaDm, SoapXml} |
| |
| private final List<I18Name> mNames; |
| private final String mOSUServer; |
| private final List<OSUMethod> mOSUMethods; |
| private final List<IconInfo> mIcons; |
| private final String mOsuNai; |
| private final List<I18Name> mServiceDescriptions; |
| private final int mHashCode; |
| |
| public OSUProvider(ByteBuffer payload) throws ProtocolException { |
| if (payload.remaining() < 11) { |
| throw new ProtocolException("Truncated OSU provider: " + payload.remaining()); |
| } |
| |
| int length = payload.getShort() & SHORT_MASK; |
| int namesLength = payload.getShort() & SHORT_MASK; |
| |
| ByteBuffer namesBuffer = payload.duplicate().order(ByteOrder.LITTLE_ENDIAN); |
| namesBuffer.limit(namesBuffer.position() + namesLength); |
| payload.position(payload.position() + namesLength); |
| |
| mNames = new ArrayList<>(); |
| |
| while (namesBuffer.hasRemaining()) { |
| mNames.add(new I18Name(namesBuffer)); |
| } |
| |
| mOSUServer = Constants.getPrefixedString(payload, 1, StandardCharsets.UTF_8); |
| int methodLength = payload.get() & BYTE_MASK; |
| mOSUMethods = new ArrayList<>(methodLength); |
| while (methodLength > 0) { |
| int methodID = payload.get() & BYTE_MASK; |
| mOSUMethods.add(methodID < OSUMethod.values().length ? |
| OSUMethod.values()[methodID] : |
| null); |
| methodLength--; |
| } |
| |
| int iconsLength = payload.getShort() & SHORT_MASK; |
| ByteBuffer iconsBuffer = payload.duplicate().order(ByteOrder.LITTLE_ENDIAN); |
| iconsBuffer.limit(iconsBuffer.position() + iconsLength); |
| payload.position(payload.position() + iconsLength); |
| |
| mIcons = new ArrayList<>(); |
| |
| while (iconsBuffer.hasRemaining()) { |
| mIcons.add(new IconInfo(iconsBuffer)); |
| } |
| |
| mOsuNai = Constants.getPrefixedString(payload, 1, StandardCharsets.UTF_8, true); |
| |
| int descriptionsLength = payload.getShort() & SHORT_MASK; |
| ByteBuffer descriptionsBuffer = payload.duplicate().order(ByteOrder.LITTLE_ENDIAN); |
| descriptionsBuffer.limit(descriptionsBuffer.position() + descriptionsLength); |
| payload.position(payload.position() + descriptionsLength); |
| |
| mServiceDescriptions = new ArrayList<>(); |
| |
| while (descriptionsBuffer.hasRemaining()) { |
| mServiceDescriptions.add(new I18Name(descriptionsBuffer)); |
| } |
| |
| int result = mNames.hashCode(); |
| result = 31 * result + mOSUServer.hashCode(); |
| result = 31 * result + mOSUMethods.hashCode(); |
| result = 31 * result + mIcons.hashCode(); |
| result = 31 * result + (mOsuNai != null ? mOsuNai.hashCode() : 0); |
| result = 31 * result + mServiceDescriptions.hashCode(); |
| mHashCode = result; |
| } |
| |
| public List<I18Name> getNames() { |
| return mNames; |
| } |
| |
| public String getOSUServer() { |
| return mOSUServer; |
| } |
| |
| public List<OSUMethod> getOSUMethods() { |
| return mOSUMethods; |
| } |
| |
| public List<IconInfo> getIcons() { |
| return mIcons; |
| } |
| |
| public String getOsuNai() { |
| return mOsuNai; |
| } |
| |
| public List<I18Name> getServiceDescriptions() { |
| return mServiceDescriptions; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| OSUProvider that = (OSUProvider) o; |
| |
| if (!mOSUServer.equals(that.mOSUServer)) return false; |
| if (!mNames.equals(that.mNames)) return false; |
| if (!mServiceDescriptions.equals(that.mServiceDescriptions)) return false; |
| if (!mIcons.equals(that.mIcons)) return false; |
| if (!mOSUMethods.equals(that.mOSUMethods)) return false; |
| if (mOsuNai != null ? !mOsuNai.equals(that.mOsuNai) : that.mOsuNai != null) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return mHashCode; |
| } |
| |
| @Override |
| public String toString() { |
| return "OSUProvider{" + |
| "names=" + mNames + |
| ", OSUServer='" + mOSUServer + '\'' + |
| ", OSUMethods=" + mOSUMethods + |
| ", icons=" + mIcons + |
| ", NAI='" + mOsuNai + '\'' + |
| ", serviceDescriptions=" + mServiceDescriptions + |
| '}'; |
| } |
| } |