diff options
Diffstat (limited to 'src/java/com/android/internal/telephony/metrics/CellularSecurityTransparencyStats.java')
-rw-r--r-- | src/java/com/android/internal/telephony/metrics/CellularSecurityTransparencyStats.java | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/java/com/android/internal/telephony/metrics/CellularSecurityTransparencyStats.java b/src/java/com/android/internal/telephony/metrics/CellularSecurityTransparencyStats.java new file mode 100644 index 0000000000..f77474f5c6 --- /dev/null +++ b/src/java/com/android/internal/telephony/metrics/CellularSecurityTransparencyStats.java @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2024 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.internal.telephony.metrics; + +import android.telephony.CellularIdentifierDisclosure; + +import com.android.internal.annotations.VisibleForTesting; +import com.android.internal.telephony.TelephonyStatsLog; +import com.android.telephony.Rlog; + +/** + * Facilitates writing stats relating to cellular transparency features. Delegates the actual + * writing of stats out to {@link TelephonyStatsLog}. + */ +public class CellularSecurityTransparencyStats { + + private static final String LOG_TAG = "CellularSecurityTransparencyStats"; + private static final String LOG_DESCRIPTOR_SIM_MCC = "SIM MCC"; + private static final String LOG_DESCRIPTOR_SIM_MNC = "SIM MNC"; + private static final String LOG_DESCRIPTOR_DISCLOSURE_MCC = "disclosure MCC"; + private static final String LOG_DESCRIPTOR_DISCLOSURE_MNC = "disclosure MNC"; + private static final int DEFAULT_PLMN_PART = -1; + + /** + * Log an identifier disclosure to be written out to {@link TelephonyStatsLog} + */ + public void logIdentifierDisclosure(CellularIdentifierDisclosure disclosure, String simMcc, + String simMnc, boolean notificationsEnabled) { + + int mcc = parsePlmnPartOrDefault(simMcc, LOG_DESCRIPTOR_SIM_MCC); + int mnc = parsePlmnPartOrDefault(simMnc, LOG_DESCRIPTOR_SIM_MNC); + + int disclosureMcc = DEFAULT_PLMN_PART; + int disclosureMnc = DEFAULT_PLMN_PART; + String plmn = disclosure.getPlmn(); + if (plmn != null) { + String[] plmnParts = plmn.split("-"); + if (plmnParts.length == 2) { + disclosureMcc = parsePlmnPartOrDefault(plmnParts[0], LOG_DESCRIPTOR_DISCLOSURE_MCC); + disclosureMnc = parsePlmnPartOrDefault(plmnParts[1], LOG_DESCRIPTOR_DISCLOSURE_MNC); + } + } + + writeIdentifierDisclosure(mcc, mnc, disclosureMcc, disclosureMnc, + disclosure.getCellularIdentifier(), disclosure.getNasProtocolMessage(), + disclosure.isEmergency(), notificationsEnabled); + + } + + private int parsePlmnPartOrDefault(String input, String logDescriptor) { + try { + return Integer.parseInt(input); + } catch (NumberFormatException e) { + Rlog.d(LOG_TAG, "Failed to parse " + logDescriptor + ": " + input); + } + + return DEFAULT_PLMN_PART; + } + + /** + * Write identifier disclosure data out to {@link TelephonyStatsLog}. This method is split + * out to enable testing, since {@link TelephonyStatsLog} is a final static class. + */ + @VisibleForTesting + public void writeIdentifierDisclosure(int mcc, int mnc, int disclosureMcc, int disclosureMnc, + int identifier, int protocolMessage, boolean isEmergency, + boolean areNotificationsEnabled) { + TelephonyStatsLog.write(TelephonyStatsLog.CELLULAR_IDENTIFIER_DISCLOSED, mcc, mnc, + disclosureMcc, disclosureMnc, identifier, protocolMessage, isEmergency, + areNotificationsEnabled); + } +} |