| 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; |
| |
| 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<I18Name>(); |
| |
| 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<OSUMethod>(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<IconInfo>(); |
| |
| 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<I18Name>(); |
| |
| while (descriptionsBuffer.hasRemaining()) { |
| mServiceDescriptions.add(new I18Name(descriptionsBuffer)); |
| } |
| } |
| |
| 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 String toString() { |
| return "OSUProvider{" + |
| "mNames=" + mNames + |
| ", mOSUServer='" + mOSUServer + '\'' + |
| ", mOSUMethods=" + mOSUMethods + |
| ", mIcons=" + mIcons + |
| ", mOsuNai='" + mOsuNai + '\'' + |
| ", mServiceDescriptions=" + mServiceDescriptions + |
| '}'; |
| } |
| } |