AID suffix registration. (e910e8bf) · Commits · e / os / android_frameworks_base

core/java/android/nfc/cardemulation/ApduServiceInfo.java

+25 −0

Original line number	Diff line number	Diff line
		@@ -253,6 +253,20 @@ public final class ApduServiceInfo implements Parcelable {
		Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
		}
		a.recycle();
		} else if (eventType == XmlPullParser.START_TAG &&
		tagName.equals("aid-suffix-filter") && currentGroup != null) {
		final TypedArray a = res.obtainAttributes(attrs,
		com.android.internal.R.styleable.AidFilter);
		String aid = a.getString(com.android.internal.R.styleable.AidFilter_name).
		toUpperCase();
		// Add wildcard char to indicate suffix
		aid = aid.concat("#");
		if (CardEmulation.isValidAid(aid) && !currentGroup.aids.contains(aid)) {
		currentGroup.aids.add(aid);
		} else {
		Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
		}
		a.recycle();
		}
		}
		} catch (NameNotFoundException e) {
		@@ -297,6 +311,17 @@ public final class ApduServiceInfo implements Parcelable {
		return prefixAids;
		}

		public List<String> getSubsetAids() {
		final ArrayList<String> subsetAids = new ArrayList<String>();
		for (AidGroup group : getAidGroups()) {
		for (String aid : group.aids) {
		if (aid.endsWith("#")) {
		subsetAids.add(aid);
		}
		}
		}
		return subsetAids;
		}
		/**
		* Returns the registered AID group for this category.
		*/

+7 −5

Original line number	Diff line number	Diff line
		@@ -606,6 +606,8 @@ public final class CardEmulation {
		* <li>Consist of only hex characters
		* <li>Additionally, we allow an asterisk at the end, to indicate
		* a prefix
		* <li>Additinally we allow an (#) at symbol at the end, to indicate
		* a subset
		* </ul>
		*
		* @hide
		@@ -614,20 +616,20 @@ public final class CardEmulation {
		if (aid == null)
		return false;

		// If a prefix AID, the total length must be odd (even # of AID chars + '*')
		if (aid.endsWith("*") && ((aid.length() % 2) == 0)) {
		// If a prefix/subset AID, the total length must be odd (even # of AID chars + '*')
		if ((aid.endsWith("*") \|\| aid.endsWith("#")) && ((aid.length() % 2) == 0)) {
		Log.e(TAG, "AID " + aid + " is not a valid AID.");
		return false;
		}

		// If not a prefix AID, the total length must be even (even # of AID chars)
		if (!aid.endsWith("*") && ((aid.length() % 2) != 0)) {
		// If not a prefix/subset AID, the total length must be even (even # of AID chars)
		if ((!(aid.endsWith("*") \|\| aid.endsWith("#"))) && ((aid.length() % 2) != 0)) {
		Log.e(TAG, "AID " + aid + " is not a valid AID.");
		return false;
		}

		// Verify hex characters
		if (!aid.matches("[0-9A-Fa-f]{10,32}\\*?")) {
		if (!aid.matches("[0-9A-Fa-f]{10,32}\\*?\\#?")) {
		Log.e(TAG, "AID " + aid + " is not a valid AID.");
		return false;
		}