Merge "Carrier ID table rollout" am: 377714970b am: 7b27727e54
am: ca4236228a

Change-Id: I6e17866150918cc4231d8507c7791873cf188e99
diff --git a/Android.bp b/Android.bp
index eabd567..0524eaf 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,9 +1,15 @@
+filegroup {
+    name: "jarjar-rules",
+    srcs: ["jarjar-rules.txt"],
+}
+
 android_app {
     name: "TelephonyProvider",
     privileged: true,
-    srcs: ["src/**/*.java"],
+    srcs: ["src/**/*.java", "proto/**/*.proto"],
+    jarjar_rules: ":jarjar-rules",
     platform_apis: true,
     certificate: "platform",
     libs: ["telephony-common"],
-    static_libs: ["android-common"],
-}
+    static_libs: ["android-common", "telephonyprovider-protos"],
+}
\ No newline at end of file
diff --git a/jarjar-rules.txt b/jarjar-rules.txt
new file mode 100644
index 0000000..b0d73d3
--- /dev/null
+++ b/jarjar-rules.txt
@@ -0,0 +1 @@
+rule com.android.internal.util.XmlUtils* com.android.internal.telephony.XmlUtils@1
diff --git a/proto/Android.bp b/proto/Android.bp
new file mode 100644
index 0000000..4420263
--- /dev/null
+++ b/proto/Android.bp
@@ -0,0 +1,29 @@
+// Copyright (C) 2019 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.
+
+java_library_static {
+    name: "telephonyprovider-protos",
+    proto: {
+        type: "nano",
+        output_params: [
+            "store_unknown_fields=true",
+            "enum_style=java",
+        ],
+    },
+    srcs: ["src/**/*.proto"],
+    sdk_version: "core_platform",
+    jarjar_rules: "jarjar-rules.txt",
+    // Pin java_version until jarjar is certified to support later versions. http://b/72703434
+    java_version: "1.8",
+}
diff --git a/proto/jarjar-rules.txt b/proto/jarjar-rules.txt
new file mode 100644
index 0000000..4cad1ee
--- /dev/null
+++ b/proto/jarjar-rules.txt
@@ -0,0 +1 @@
+rule com.google.protobuf.nano.** com.android.providers.telephony.protobuf.nano.@1
\ No newline at end of file
diff --git a/proto/src/carrierId.proto b/proto/src/carrierId.proto
new file mode 100644
index 0000000..9d2f29e
--- /dev/null
+++ b/proto/src/carrierId.proto
@@ -0,0 +1,92 @@
+//
+// Copyright (C) 2019 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.
+//
+
+syntax = "proto2";
+
+package carrierIdentification;
+
+option java_package = "com.android.providers.telephony";
+option java_outer_classname = "CarrierIdProto";
+
+// A complete list of carriers
+message CarrierList {
+  // A collection of carriers. one entry for one carrier.
+  repeated CarrierId carrier_id = 1;
+  // Version number of current carrier list
+  optional int32 version = 2;
+};
+
+// CarrierId is the unique representation of a carrier in CID table.
+message CarrierId {
+  // [Optional] A unique canonical number designated to a carrier.
+  optional int32 canonical_id = 1;
+
+  // [Optional] A user-friendly carrier name (not localized).
+  optional string carrier_name = 2;
+
+  // [Optional] Carrier attributes to match a carrier. At least one value is required.
+  repeated CarrierAttribute carrier_attribute = 3;
+
+  // [Optional] A unique canonical number to represent its parent carrier. The parent-child
+  // relationship can be used to differentiate a single carrier by different networks,
+  // by prepaid v.s. postpaid  or even by 4G v.s. 3G plan.
+  optional int32 parent_canonical_id = 4;
+};
+
+// Attributes used to match a carrier.
+// For each field within this message:
+//   - if not set, the attribute is ignored;
+//   - if set, the device must have one of the specified values to match.
+// Match is based on AND between any field that is set and OR for values within a repeated field.
+message CarrierAttribute {
+  // [Optional] The MCC and MNC that map to this carrier. At least one value is required.
+  repeated string mccmnc_tuple = 1;
+
+  // [Optional] Prefix of IMSI (International Mobile Subscriber Identity) in
+  // decimal format. Some digits can be replaced with "x" symbols matching any digit.
+  // Sample values: 20404794, 21670xx2xxx.
+  repeated string imsi_prefix_xpattern = 2;
+
+  // [Optional] The Service Provider Name. Read from subscription EF_SPN.
+  // Sample values: C Spire, LeclercMobile
+  repeated string spn = 3;
+
+  // [Optional] PLMN network name. Read from subscription EF_PNN.
+  // Sample values:
+  repeated string plmn = 4;
+
+  // [Optional] Group Identifier Level1 for a GSM phone. Read from subscription EF_GID1.
+  // Sample values: 6D, BAE0000000000000
+  repeated string gid1 = 5;
+
+  // [Optional] Group Identifier Level2 for a GSM phone. Read from subscription EF_GID2.
+  // Sample values: 6D, BAE0000000000000
+  repeated string gid2 = 6;
+
+  // [Optional] The Access Point Name, corresponding to "apn" field returned by
+  // "content://telephony/carriers/preferapn" on device.
+  // Sample values: fast.t-mobile.com, internet
+  repeated string preferred_apn = 7;
+
+  // [Optional] Prefix of Integrated Circuit Card Identifier. Read from subscription EF_ICCID.
+  // Sample values: 894430, 894410
+  repeated string iccid_prefix = 8;
+
+  // [Optional] Carrier Privilege Access Rule in hex string.
+  // Sample values: 61ed377e85d386a8dfee6b864bd85b0bfaa5af88
+  repeated string privilege_access_rule = 9;
+};
+
diff --git a/res/values-fr/strings.xml b/res/values-fr/strings.xml
index 6cfcdfb..f3baf24 100644
--- a/res/values-fr/strings.xml
+++ b/res/values-fr/strings.xml
@@ -17,5 +17,5 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_label" product="tablet" msgid="9194799012395299737">"Configuration du réseau mobile"</string>
-    <string name="app_label" product="default" msgid="8338087656149558019">"Stockage tél. et SMS/MMS"</string>
+    <string name="app_label" product="default" msgid="8338087656149558019">"Téléphone et stockage des messages"</string>
 </resources>
diff --git a/src/com/android/providers/telephony/CarrierIdProvider.java b/src/com/android/providers/telephony/CarrierIdProvider.java
index 44f053d..dadacc5 100644
--- a/src/com/android/providers/telephony/CarrierIdProvider.java
+++ b/src/com/android/providers/telephony/CarrierIdProvider.java
@@ -25,23 +25,23 @@
 import android.content.pm.PackageManager;
 import android.database.Cursor;
 import android.database.MatrixCursor;
-import android.database.SQLException;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.database.sqlite.SQLiteQueryBuilder;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Environment;
+import android.os.FileUtils;
 import android.os.SystemProperties;
 import android.provider.Telephony.CarrierId;
 import android.telephony.SubscriptionManager;
 import android.text.TextUtils;
 import android.util.Log;
-import android.util.Pair;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telephony.SubscriptionController;
-import com.android.internal.telephony.nano.CarrierIdProto;
+import com.android.internal.telephony.util.TelephonyUtils;
+import com.android.providers.telephony.nano.CarrierIdProto;
 
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -54,8 +54,6 @@
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import libcore.io.IoUtils;
-
 /**
  * This class provides the ability to query the Carrier Identification databases
  * (A.K.A. cid) which is stored in a SQLite database.
@@ -536,7 +534,7 @@
         } catch (IOException ex) {
             Log.e(TAG, "read carrier list from assets pb failure: " + ex);
         } finally {
-            IoUtils.closeQuietly(is);
+            FileUtils.closeQuietly(is);
         }
         try {
             is = new FileInputStream(new File(Environment.getDataDirectory(), OTA_UPDATED_PB_PATH));
@@ -544,7 +542,7 @@
         } catch (IOException ex) {
             Log.e(TAG, "read carrier list from ota pb failure: " + ex);
         } finally {
-            IoUtils.closeQuietly(is);
+            FileUtils.closeQuietly(is);
         }
 
         // compare version
@@ -553,7 +551,7 @@
             version = assets.version;
         }
         // bypass version check for ota carrier id test
-        if (ota != null && ((Build.IS_DEBUGGABLE && SystemProperties.getBoolean(
+        if (ota != null && ((TelephonyUtils.IS_DEBUGGABLE && SystemProperties.getBoolean(
                 "persist.telephony.test.carrierid.ota", false))
                 || (ota.version > version))) {
             carrierList = ota;
diff --git a/src/com/android/providers/telephony/MmsProvider.java b/src/com/android/providers/telephony/MmsProvider.java
index 30158c3..96059d7 100644
--- a/src/com/android/providers/telephony/MmsProvider.java
+++ b/src/com/android/providers/telephony/MmsProvider.java
@@ -31,7 +31,6 @@
 import android.database.sqlite.SQLiteQueryBuilder;
 import android.net.Uri;
 import android.os.Binder;
-import android.os.FileUtils;
 import android.os.ParcelFileDescriptor;
 import android.os.UserHandle;
 import android.provider.BaseColumns;
@@ -44,6 +43,8 @@
 import android.provider.Telephony.Mms.Rate;
 import android.provider.Telephony.MmsSms;
 import android.provider.Telephony.Threads;
+import android.system.ErrnoException;
+import android.system.Os;
 import android.text.TextUtils;
 import android.util.Log;
 
@@ -518,9 +519,13 @@
                         // Give everyone rw permission until we encrypt the file
                         // (in PduPersister.persistData). Once the file is encrypted, the
                         // permissions will be set to 0644.
-                        int result = FileUtils.setPermissions(path, 0666, -1, -1);
-                        if (LOCAL_LOGV) {
-                            Log.d(TAG, "MmsProvider.insert setPermissions result: " + result);
+                        try {
+                            Os.chmod(path, 0666);
+                            if (LOCAL_LOGV) {
+                                Log.d(TAG, "MmsProvider.insert chmod is successful");
+                            }
+                        } catch (ErrnoException e) {
+                            Log.e(TAG, "Exception in chmod: " + e);
                         }
                     } catch (IOException e) {
                         Log.e(TAG, "createNewFile", e);
@@ -816,10 +821,13 @@
                 String path = getContext().getDir(PARTS_DIR_NAME, 0).getPath() + '/' +
                         uri.getPathSegments().get(1);
                 // Reset the file permission back to read for everyone but me.
-                int result = FileUtils.setPermissions(path, 0644, -1, -1);
-                if (LOCAL_LOGV) {
-                    Log.d(TAG, "MmsProvider.update setPermissions result: " + result +
-                            " for path: " + path);
+                try {
+                    Os.chmod(path, 0644);
+                    if (LOCAL_LOGV) {
+                        Log.d(TAG, "MmsProvider.update chmod is successful for path: " + path);
+                    }
+                } catch (ErrnoException e) {
+                    Log.e(TAG, "Exception in chmod: " + e);
                 }
                 return 0;
 
diff --git a/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java b/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
index 4add85d..034efaa 100644
--- a/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
+++ b/src/com/android/providers/telephony/MmsSmsDatabaseHelper.java
@@ -47,7 +47,6 @@
 import android.provider.Telephony.Threads;
 import android.telephony.SubscriptionManager;
 import android.util.Log;
-import android.util.Slog;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telephony.PhoneFactory;
@@ -267,7 +266,7 @@
 
     /**
      * The primary purpose of this DatabaseErrorHandler is to broadcast an intent on corruption and
-     * print a Slog.wtf so database corruption can be caught earlier.
+     * print a Log.wtf so database corruption can be caught earlier.
      */
     private static class MmsSmsDatabaseErrorHandler implements DatabaseErrorHandler {
         private DefaultDatabaseErrorHandler mDefaultDatabaseErrorHandler
@@ -571,7 +570,7 @@
     }
 
     private static void localLogWtf(String logMsg) {
-        Slog.wtf(TAG, logMsg);
+        Log.wtf(TAG, logMsg);
         PhoneFactory.localLog(TAG, logMsg);
     }
 
diff --git a/src/com/android/providers/telephony/MmsSmsProvider.java b/src/com/android/providers/telephony/MmsSmsProvider.java
index 1170aad..f5aeadc 100644
--- a/src/com/android/providers/telephony/MmsSmsProvider.java
+++ b/src/com/android/providers/telephony/MmsSmsProvider.java
@@ -336,6 +336,16 @@
         final String pduTable = MmsProvider.getPduTable(accessRestricted);
         final String smsTable = SmsProvider.getSmsTable(accessRestricted);
 
+        // If access is restricted, we don't allow subqueries in the query.
+        if (accessRestricted) {
+            try {
+                SqlQueryChecker.checkQueryParametersForSubqueries(projection, selection, sortOrder);
+            } catch (IllegalArgumentException e) {
+                Log.w(LOG_TAG, "Query rejected: " + e.getMessage());
+                return null;
+            }
+        }
+
         SQLiteDatabase db = mOpenHelper.getReadableDatabase();
         Cursor cursor = null;
         final int match = URI_MATCHER.match(uri);
diff --git a/src/com/android/providers/telephony/SQLiteTokenizer.java b/src/com/android/providers/telephony/SQLiteTokenizer.java
new file mode 100644
index 0000000..39749fb
--- /dev/null
+++ b/src/com/android/providers/telephony/SQLiteTokenizer.java
@@ -0,0 +1,297 @@
+/*
+ * Copyright (C) 2019 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.providers.telephony;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.function.Consumer;
+
+/**
+ * Copied from frameworks/base/core/java/android/database/sqlite/SQLiteTokenizer.java
+ *
+ * SQL Tokenizer specialized to extract tokens from SQL (snippets).
+ * <p>
+ * Based on sqlite3GetToken() in tokenzie.c in SQLite.
+ * <p>
+ * Source for v3.8.6 (which android uses): http://www.sqlite.org/src/artifact/ae45399d6252b4d7
+ * (Latest source as of now: http://www.sqlite.org/src/artifact/78c8085bc7af1922)
+ * <p>
+ * Also draft spec: http://www.sqlite.org/draft/tokenreq.html
+ */
+public class SQLiteTokenizer {
+    private static boolean isAlpha(char ch) {
+        return ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || (ch == '_');
+    }
+
+    private static boolean isNum(char ch) {
+        return ('0' <= ch && ch <= '9');
+    }
+
+    private static boolean isAlNum(char ch) {
+        return isAlpha(ch) || isNum(ch);
+    }
+
+    private static boolean isAnyOf(char ch, String set) {
+        return set.indexOf(ch) >= 0;
+    }
+
+    private static IllegalArgumentException genException(String message, String sql) {
+        throw new IllegalArgumentException(message + " in '" + sql + "'");
+    }
+
+    private static char peek(String s, int index) {
+        return index < s.length() ? s.charAt(index) : '\0';
+    }
+
+    public static final int OPTION_NONE = 0;
+
+    /**
+     * Require that SQL contains only tokens; any comments or values will result
+     * in an exception.
+     */
+    public static final int OPTION_TOKEN_ONLY = 1 << 0;
+
+    /**
+     * Tokenize the given SQL, returning the list of each encountered token.
+     *
+     * @throws IllegalArgumentException if invalid SQL is encountered.
+     */
+    public static List<String> tokenize(@Nullable String sql, int options) {
+        final ArrayList<String> res = new ArrayList<>();
+        tokenize(sql, options, res::add);
+        return res;
+    }
+
+    /**
+     * Tokenize the given SQL, sending each encountered token to the given
+     * {@link Consumer}.
+     *
+     * @throws IllegalArgumentException if invalid SQL is encountered.
+     */
+    public static void tokenize(@Nullable String sql, int options, Consumer<String> checker) {
+        if (sql == null) {
+            return;
+        }
+        int pos = 0;
+        final int len = sql.length();
+        while (pos < len) {
+            final char ch = peek(sql, pos);
+
+            // Regular token.
+            if (isAlpha(ch)) {
+                final int start = pos;
+                pos++;
+                while (isAlNum(peek(sql, pos))) {
+                    pos++;
+                }
+                final int end = pos;
+
+                final String token = sql.substring(start, end);
+                checker.accept(token);
+
+                continue;
+            }
+
+            // Handle quoted tokens
+            if (isAnyOf(ch, "'\"`")) {
+                final int quoteStart = pos;
+                pos++;
+
+                for (;;) {
+                    pos = sql.indexOf(ch, pos);
+                    if (pos < 0) {
+                        throw genException("Unterminated quote", sql);
+                    }
+                    if (peek(sql, pos + 1) != ch) {
+                        break;
+                    }
+                    // Quoted quote char -- e.g. "abc""def" is a single string.
+                    pos += 2;
+                }
+                final int quoteEnd = pos;
+                pos++;
+
+                if (ch != '\'') {
+                    // Extract the token
+                    final String tokenUnquoted = sql.substring(quoteStart + 1, quoteEnd);
+
+                    final String token;
+
+                    // Unquote if needed. i.e. "aa""bb" -> aa"bb
+                    if (tokenUnquoted.indexOf(ch) >= 0) {
+                        token = tokenUnquoted.replaceAll(
+                                String.valueOf(ch) + ch, String.valueOf(ch));
+                    } else {
+                        token = tokenUnquoted;
+                    }
+                    checker.accept(token);
+                } else {
+                    if ((options &= OPTION_TOKEN_ONLY) != 0) {
+                        throw genException("Non-token detected", sql);
+                    }
+                }
+                continue;
+            }
+            // Handle tokens enclosed in [...]
+            if (ch == '[') {
+                final int quoteStart = pos;
+                pos++;
+
+                pos = sql.indexOf(']', pos);
+                if (pos < 0) {
+                    throw genException("Unterminated quote", sql);
+                }
+                final int quoteEnd = pos;
+                pos++;
+
+                final String token = sql.substring(quoteStart + 1, quoteEnd);
+
+                checker.accept(token);
+                continue;
+            }
+            if ((options &= OPTION_TOKEN_ONLY) != 0) {
+                throw genException("Non-token detected", sql);
+            }
+
+            // Detect comments.
+            if (ch == '-' && peek(sql, pos + 1) == '-') {
+                pos += 2;
+                pos = sql.indexOf('\n', pos);
+                if (pos < 0) {
+                    // We disallow strings ending in an inline comment.
+                    throw genException("Unterminated comment", sql);
+                }
+                pos++;
+
+                continue;
+            }
+            if (ch == '/' && peek(sql, pos + 1) == '*') {
+                pos += 2;
+                pos = sql.indexOf("*/", pos);
+                if (pos < 0) {
+                    throw genException("Unterminated comment", sql);
+                }
+                pos += 2;
+
+                continue;
+            }
+
+            // Semicolon is never allowed.
+            if (ch == ';') {
+                throw genException("Semicolon is not allowed", sql);
+            }
+
+            // For this purpose, we can simply ignore other characters.
+            // (Note it doesn't handle the X'' literal properly and reports this X as a token,
+            // but that should be fine...)
+            pos++;
+        }
+    }
+
+    /**
+     * Test if given token is a
+     * <a href="https://www.sqlite.org/lang_keywords.html">SQLite reserved
+     * keyword</a>.
+     */
+    public static boolean isKeyword(@NonNull String token) {
+        switch (token.toUpperCase(Locale.US)) {
+            case "ABORT": case "ACTION": case "ADD": case "AFTER":
+            case "ALL": case "ALTER": case "ANALYZE": case "AND":
+            case "AS": case "ASC": case "ATTACH": case "AUTOINCREMENT":
+            case "BEFORE": case "BEGIN": case "BETWEEN": case "BINARY":
+            case "BY": case "CASCADE": case "CASE": case "CAST":
+            case "CHECK": case "COLLATE": case "COLUMN": case "COMMIT":
+            case "CONFLICT": case "CONSTRAINT": case "CREATE": case "CROSS":
+            case "CURRENT": case "CURRENT_DATE": case "CURRENT_TIME": case "CURRENT_TIMESTAMP":
+            case "DATABASE": case "DEFAULT": case "DEFERRABLE": case "DEFERRED":
+            case "DELETE": case "DESC": case "DETACH": case "DISTINCT":
+            case "DO": case "DROP": case "EACH": case "ELSE":
+            case "END": case "ESCAPE": case "EXCEPT": case "EXCLUDE":
+            case "EXCLUSIVE": case "EXISTS": case "EXPLAIN": case "FAIL":
+            case "FILTER": case "FOLLOWING": case "FOR": case "FOREIGN":
+            case "FROM": case "FULL": case "GLOB": case "GROUP":
+            case "GROUPS": case "HAVING": case "IF": case "IGNORE":
+            case "IMMEDIATE": case "IN": case "INDEX": case "INDEXED":
+            case "INITIALLY": case "INNER": case "INSERT": case "INSTEAD":
+            case "INTERSECT": case "INTO": case "IS": case "ISNULL":
+            case "JOIN": case "KEY": case "LEFT": case "LIKE":
+            case "LIMIT": case "MATCH": case "NATURAL": case "NO":
+            case "NOCASE": case "NOT": case "NOTHING": case "NOTNULL":
+            case "NULL": case "OF": case "OFFSET": case "ON":
+            case "OR": case "ORDER": case "OTHERS": case "OUTER":
+            case "OVER": case "PARTITION": case "PLAN": case "PRAGMA":
+            case "PRECEDING": case "PRIMARY": case "QUERY": case "RAISE":
+            case "RANGE": case "RECURSIVE": case "REFERENCES": case "REGEXP":
+            case "REINDEX": case "RELEASE": case "RENAME": case "REPLACE":
+            case "RESTRICT": case "RIGHT": case "ROLLBACK": case "ROW":
+            case "ROWS": case "RTRIM": case "SAVEPOINT": case "SELECT":
+            case "SET": case "TABLE": case "TEMP": case "TEMPORARY":
+            case "THEN": case "TIES": case "TO": case "TRANSACTION":
+            case "TRIGGER": case "UNBOUNDED": case "UNION": case "UNIQUE":
+            case "UPDATE": case "USING": case "VACUUM": case "VALUES":
+            case "VIEW": case "VIRTUAL": case "WHEN": case "WHERE":
+            case "WINDOW": case "WITH": case "WITHOUT":
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * Test if given token is a
+     * <a href="https://www.sqlite.org/lang_corefunc.html">SQLite reserved
+     * function</a>.
+     */
+    public static boolean isFunction(@NonNull String token) {
+        switch (token.toLowerCase(Locale.US)) {
+            case "abs": case "avg": case "char": case "coalesce":
+            case "count": case "glob": case "group_concat": case "hex":
+            case "ifnull": case "instr": case "length": case "like":
+            case "likelihood": case "likely": case "lower": case "ltrim":
+            case "max": case "min": case "nullif": case "random":
+            case "randomblob": case "replace": case "round": case "rtrim":
+            case "substr": case "sum": case "total": case "trim":
+            case "typeof": case "unicode": case "unlikely": case "upper":
+            case "zeroblob":
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * Test if given token is a
+     * <a href="https://www.sqlite.org/datatype3.html">SQLite reserved type</a>.
+     */
+    public static boolean isType(@NonNull String token) {
+        switch (token.toUpperCase(Locale.US)) {
+            case "INT": case "INTEGER": case "TINYINT": case "SMALLINT":
+            case "MEDIUMINT": case "BIGINT": case "INT2": case "INT8":
+            case "CHARACTER": case "VARCHAR": case "NCHAR": case "NVARCHAR":
+            case "TEXT": case "CLOB": case "BLOB": case "REAL":
+            case "DOUBLE": case "FLOAT": case "NUMERIC": case "DECIMAL":
+            case "BOOLEAN": case "DATE": case "DATETIME":
+                return true;
+            default:
+                return false;
+        }
+    }
+}
diff --git a/src/com/android/providers/telephony/SmsProvider.java b/src/com/android/providers/telephony/SmsProvider.java
index ddfa14c..24c610e 100644
--- a/src/com/android/providers/telephony/SmsProvider.java
+++ b/src/com/android/providers/telephony/SmsProvider.java
@@ -124,6 +124,16 @@
         final String smsTable = getSmsTable(accessRestricted);
         SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
 
+        // If access is restricted, we don't allow subqueries in the query.
+        if (accessRestricted) {
+            try {
+                SqlQueryChecker.checkQueryParametersForSubqueries(projectionIn, selection, sort);
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG, "Query rejected: " + e.getMessage());
+                return null;
+            }
+        }
+
         // Generate the body of the query.
         int match = sURLMatcher.match(url);
         SQLiteDatabase db = getReadableDatabase(match);
diff --git a/src/com/android/providers/telephony/SqlQueryChecker.java b/src/com/android/providers/telephony/SqlQueryChecker.java
new file mode 100644
index 0000000..a98dd25
--- /dev/null
+++ b/src/com/android/providers/telephony/SqlQueryChecker.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2019 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.providers.telephony;
+
+public class SqlQueryChecker {
+    private static final String SELECT_TOKEN = "select";
+
+    static void checkToken(String token) {
+        if (SELECT_TOKEN.equals(token.toLowerCase())) {
+            throw new IllegalArgumentException("SELECT token not allowed in query");
+        }
+    }
+
+    /**
+     * Check the query parameters to see if they contain subqueries. Throws an
+     * {@link IllegalArgumentException} if they do. See
+     * {@link android.content.ContentProvider#query} for the definitions of the arguments.
+     */
+    static void checkQueryParametersForSubqueries(String[] projection,
+            String selection, String sortOrder) {
+        if (projection != null) {
+            for (String proj : projection) {
+                SQLiteTokenizer.tokenize(proj, SQLiteTokenizer.OPTION_NONE,
+                        SqlQueryChecker::checkToken);
+            }
+        }
+        SQLiteTokenizer.tokenize(selection, SQLiteTokenizer.OPTION_NONE,
+                SqlQueryChecker::checkToken);
+        SQLiteTokenizer.tokenize(sortOrder, SQLiteTokenizer.OPTION_NONE,
+                SqlQueryChecker::checkToken);
+    }
+}
diff --git a/src/com/android/providers/telephony/TelephonyBackupAgent.java b/src/com/android/providers/telephony/TelephonyBackupAgent.java
index 437b5a2..dcf98c7 100644
--- a/src/com/android/providers/telephony/TelephonyBackupAgent.java
+++ b/src/com/android/providers/telephony/TelephonyBackupAgent.java
@@ -531,9 +531,7 @@
 
                 for (File file : files) {
                     final String fileName = file.getName();
-                    if (DEBUG) {
-                        Log.d(TAG, "onHandleIntent restoring file " + fileName);
-                    }
+                    Log.d(TAG, "onHandleIntent restoring file " + fileName);
                     try (FileInputStream fileInputStream = new FileInputStream(file)) {
                         mTelephonyBackupAgent.doRestoreFile(fileName, fileInputStream.getFD());
                         didRestore = true;
@@ -547,9 +545,7 @@
                 if (didRestore) {
                   // Tell the default sms app to do a full sync now that the messages have been
                   // restored.
-                  if (DEBUG) {
-                    Log.d(TAG, "onHandleIntent done - notifying default sms app");
-                  }
+                  Log.d(TAG, "onHandleIntent done - notifying default sms app");
                   ProviderUtil.notifyIfNotDefaultSmsApp(null /*uri*/, null /*calling package*/,
                       this);
                 }
@@ -605,25 +601,17 @@
     }
 
     private void doRestoreFile(String fileName, FileDescriptor fd) throws IOException {
-        if (DEBUG) {
-            Log.d(TAG, "Restoring file " + fileName);
-        }
+        Log.d(TAG, "Restoring file " + fileName);
 
         try (JsonReader jsonReader = getJsonReader(fd)) {
             if (fileName.endsWith(SMS_BACKUP_FILE_SUFFIX)) {
-                if (DEBUG) {
-                    Log.d(TAG, "Restoring SMS");
-                }
+                Log.d(TAG, "Restoring SMS");
                 putSmsMessagesToProvider(jsonReader);
             } else if (fileName.endsWith(MMS_BACKUP_FILE_SUFFIX)) {
-                if (DEBUG) {
-                    Log.d(TAG, "Restoring text MMS");
-                }
+                Log.d(TAG, "Restoring text MMS");
                 putMmsMessagesToProvider(jsonReader);
             } else {
-                if (DEBUG) {
-                    Log.e(TAG, "Unknown file to restore:" + fileName);
-                }
+                Log.e(TAG, "Unknown file to restore:" + fileName);
             }
         }
     }
@@ -654,6 +642,7 @@
     @VisibleForTesting
     void putMmsMessagesToProvider(JsonReader jsonReader) throws IOException {
         jsonReader.beginArray();
+        int total = 0;
         while (jsonReader.hasNext()) {
             final Mms mms = readMmsFromReader(jsonReader);
             if (DEBUG) {
@@ -662,11 +651,15 @@
             if (doesMmsExist(mms)) {
                 if (DEBUG) {
                     Log.e(TAG, String.format("Mms: %s already exists", mms.toString()));
+                } else {
+                    Log.w(TAG, "Mms: Found duplicate MMS");
                 }
                 continue;
             }
+            total++;
             addMmsMessage(mms);
         }
+        Log.d(TAG, "putMmsMessagesToProvider handled " + total + " new messages.");
     }
 
     @VisibleForTesting
@@ -823,6 +816,8 @@
                 default:
                     if (DEBUG) {
                         Log.w(TAG, "readSmsValuesFromReader Unknown name:" + name);
+                    } else {
+                        Log.w(TAG, "readSmsValuesFromReader encountered unknown name.");
                     }
                     jsonReader.skipValue();
                     break;
@@ -955,9 +950,7 @@
                     mms.values.put(name, jsonReader.nextString());
                     break;
                 default:
-                    if (DEBUG) {
-                        Log.d(TAG, "Unknown name:" + name);
-                    }
+                    Log.d(TAG, "Unknown JSON element name:" + name);
                     jsonReader.skipValue();
                     break;
             }
@@ -995,9 +988,7 @@
                 values,
                 ARCHIVE_THREAD_SELECTION,
                 new String[] { Long.toString(threadId)}) != 1) {
-            if (DEBUG) {
-                Log.e(TAG, "archiveThread: failed to update database");
-            }
+            Log.e(TAG, "archiveThread: failed to update database");
         }
     }
 
@@ -1066,9 +1057,7 @@
                         addrValues.put(name, jsonReader.nextString());
                         break;
                     default:
-                        if (DEBUG) {
-                            Log.d(TAG, "Unknown name:" + name);
-                        }
+                        Log.d(TAG, "Unknown JSON Element name:" + name);
                         jsonReader.skipValue();
                         break;
                 }
@@ -1099,9 +1088,7 @@
                         attachmentValues.put(name, jsonReader.nextString());
                         break;
                     default:
-                        if (DEBUG) {
-                            Log.d(TAG, "getMmsAttachmentsFromReader Unknown name:" + name);
-                        }
+                        Log.d(TAG, "getMmsAttachmentsFromReader Unknown name:" + name);
                         jsonReader.skipValue();
                         break;
                 }
@@ -1110,9 +1097,7 @@
             if (attachmentValues.containsKey(MMS_ATTACHMENT_FILENAME)) {
                 mms.attachments.add(attachmentValues);
             } else {
-                if (DEBUG) {
-                    Log.d(TAG, "Attachment json with no filenames");
-                }
+                Log.d(TAG, "Attachment json with no filenames");
             }
         }
         jsonReader.endArray();
@@ -1140,9 +1125,7 @@
             values.put(Telephony.Mms.Part.CONTENT_LOCATION, "smil.xml");
             values.put(Telephony.Mms.Part.TEXT, smil);
             if (mContentResolver.insert(partUri, values) == null) {
-                if (DEBUG) {
-                    Log.e(TAG, "Could not insert SMIL part");
-                }
+                Log.e(TAG, "Could not insert SMIL part");
                 return;
             }
         }
@@ -1162,9 +1145,7 @@
             values.put(Telephony.Mms.Part.TEXT, mms.body == null ? "" : mms.body.text);
 
             if (mContentResolver.insert(partUri, values) == null) {
-                if (DEBUG) {
-                    Log.e(TAG, "Could not insert body part");
-                }
+                Log.e(TAG, "Could not insert body part");
                 return;
             }
         }
@@ -1184,9 +1165,7 @@
                         getDataDir() + ATTACHMENT_DATA_PATH + filename);
                 Uri newPartUri = mContentResolver.insert(partUri, values);
                 if (newPartUri == null) {
-                    if (DEBUG) {
-                        Log.e(TAG, "Could not insert attachment part");
-                    }
+                    Log.e(TAG, "Could not insert attachment part");
                     return;
                 }
             }
@@ -1195,9 +1174,7 @@
         // Insert mms.
         final Uri mmsUri = mContentResolver.insert(Telephony.Mms.CONTENT_URI, mms.values);
         if (mmsUri == null) {
-            if (DEBUG) {
-                Log.e(TAG, "Could not insert mms");
-            }
+            Log.e(TAG, "Could not insert mms");
             return;
         }
 
@@ -1301,9 +1278,7 @@
             try {
                 threadId = Telephony.Threads.getOrCreateThreadId(this, recipients);
             } catch (RuntimeException e) {
-                if (DEBUG) {
-                    Log.e(TAG, e.toString());
-                }
+                Log.e(TAG, "Problem obtaining thread.", e);
             }
             mCacheGetOrCreateThreadId.put(recipients, threadId);
             return threadId;
@@ -1377,15 +1352,11 @@
             try {
                 longId = Long.parseLong(id);
                 if (longId < 0) {
-                    if (DEBUG) {
-                        Log.e(TAG, "getAddresses: invalid id " + longId);
-                    }
+                    Log.e(TAG, "getAddresses: invalid id " + longId);
                     continue;
                 }
             } catch (final NumberFormatException ex) {
-                if (DEBUG) {
-                    Log.e(TAG, "getAddresses: invalid id. " + ex, ex);
-                }
+                Log.e(TAG, "getAddresses: invalid id " + ex, ex);
                 // skip this id
                 continue;
             }
@@ -1397,10 +1368,9 @@
                         ContentUris.withAppendedId(SINGLE_CANONICAL_ADDRESS_URI, longId),
                         null, null, null, null);
             } catch (final Exception e) {
-                if (DEBUG) {
-                    Log.e(TAG, "getAddresses: query failed for id " + longId, e);
-                }
+                Log.e(TAG, "getAddresses: query failed for id " + longId, e);
             }
+
             if (c != null) {
                 try {
                     if (c.moveToFirst()) {
@@ -1408,9 +1378,7 @@
                         if (!TextUtils.isEmpty(number)) {
                             numbers.add(number);
                         } else {
-                            if (DEBUG) {
-                                Log.d(TAG, "Canonical MMS/SMS address is empty for id: " + longId);
-                            }
+                            Log.d(TAG, "Canonical MMS/SMS address is empty for id: " + longId);
                         }
                     }
                 } finally {
@@ -1419,9 +1387,7 @@
             }
         }
         if (numbers.isEmpty()) {
-            if (DEBUG) {
-                Log.d(TAG, "No MMS addresses found from ids string [" + spaceSepIds + "]");
-            }
+            Log.d(TAG, "No MMS addresses found from ids string [" + spaceSepIds + "]");
         }
         return numbers;
     }
diff --git a/src/com/android/providers/telephony/TelephonyProvider.java b/src/com/android/providers/telephony/TelephonyProvider.java
index 0edbffc..6b959d3 100644
--- a/src/com/android/providers/telephony/TelephonyProvider.java
+++ b/src/com/android/providers/telephony/TelephonyProvider.java
@@ -93,7 +93,6 @@
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Environment;
-import android.os.FileUtils;
 import android.os.IBinder;
 import android.os.Process;
 import android.os.RemoteException;
@@ -101,30 +100,31 @@
 import android.os.UserHandle;
 import android.provider.Telephony;
 import android.telephony.ServiceState;
-import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.telephony.data.ApnSetting;
 import android.text.TextUtils;
+import android.util.ArrayMap;
 import android.util.Log;
 import android.util.Pair;
 import android.util.Xml;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.telephony.IApnSourceService;
 import com.android.internal.telephony.PhoneConstants;
 import com.android.internal.telephony.PhoneFactory;
 import com.android.internal.telephony.dataconnection.ApnSettingUtils;
 import com.android.internal.telephony.uicc.IccRecords;
 import com.android.internal.telephony.uicc.UiccController;
 import com.android.internal.util.XmlUtils;
+import android.service.carrier.IApnSourceService;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 
 import java.io.ByteArrayOutputStream;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
@@ -137,6 +137,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
+import java.util.zip.CheckedInputStream;
 import java.util.zip.CRC32;
 
 public class TelephonyProvider extends ContentProvider
@@ -176,6 +177,11 @@
     private static final int URL_SIM_APN_LIST_FILTERED = 26;
     private static final int URL_SIM_APN_LIST_FILTERED_ID = 27;
 
+    /**
+     * Default value for mtu if it's not set. Moved from PhoneConstants.
+     */
+    private static final int UNSPECIFIED_INT = -1;
+
     private static final String TAG = "TelephonyProvider";
     private static final String CARRIERS_TABLE = "carriers";
     private static final String CARRIERS_TABLE_TMP = "carriers_tmp";
@@ -250,6 +256,8 @@
 
     private boolean mManagedApnEnforced;
 
+    private static final Map<String, Integer> MVNO_TYPE_STRING_MAP;
+
     static {
         // Columns not included in UNIQUE constraint: name, current, edited, user, server, password,
         // authtype, type, protocol, roaming_protocol, sub_id, modem_cognitive, max_conns,
@@ -286,6 +294,12 @@
         CARRIERS_BOOLEAN_FIELDS.add(MODEM_PERSIST);
         CARRIERS_BOOLEAN_FIELDS.add(USER_VISIBLE);
         CARRIERS_BOOLEAN_FIELDS.add(USER_EDITABLE);
+
+        MVNO_TYPE_STRING_MAP = new ArrayMap<String, Integer>();
+        MVNO_TYPE_STRING_MAP.put("spn", ApnSetting.MVNO_TYPE_SPN);
+        MVNO_TYPE_STRING_MAP.put("imsi", ApnSetting.MVNO_TYPE_IMSI);
+        MVNO_TYPE_STRING_MAP.put("gid", ApnSetting.MVNO_TYPE_GID);
+        MVNO_TYPE_STRING_MAP.put("iccid", ApnSetting.MVNO_TYPE_ICCID);
     }
 
     @VisibleForTesting
@@ -584,10 +598,18 @@
         }
 
         private long getChecksum(File file) {
-            long checksum = -1;
-            try {
-                checksum = FileUtils.checksumCrc32(file);
-                if (DBG) log("Checksum for " + file.getAbsolutePath() + " is " + checksum);
+            CRC32 checkSummer = new CRC32();
+            long checkSum = -1;
+            try (CheckedInputStream cis =
+                new CheckedInputStream(new FileInputStream(file), checkSummer)){
+                byte[] buf = new byte[128];
+                if(cis != null) {
+                    while(cis.read(buf) >= 0) {
+                        // Just read for checksum to get calculated.
+                    }
+                }
+                checkSum = checkSummer.getValue();
+                if (DBG) log("Checksum for " + file.getAbsolutePath() + " is " + checkSum);
             } catch (FileNotFoundException e) {
                 loge("FileNotFoundException for " + file.getAbsolutePath() + ":" + e);
             } catch (IOException e) {
@@ -599,14 +621,14 @@
             try (InputStream inputStream = mContext.getResources().
                         openRawResource(com.android.internal.R.xml.apns)) {
                 byte[] array = toByteArray(inputStream);
-                CRC32 c = new CRC32();
-                c.update(array);
-                checksum += c.getValue();
-                if (DBG) log("Checksum after adding resource is " + checksum);
+                checkSummer.reset();
+                checkSummer.update(array);
+                checkSum += checkSummer.getValue();
+                if (DBG) log("Checksum after adding resource is " + checkSummer.getValue());
             } catch (IOException | Resources.NotFoundException e) {
                 loge("Exception when calculating checksum for internal apn resources: " + e);
             }
-            return checksum;
+            return checkSum;
         }
 
         private byte[] toByteArray(InputStream input) throws IOException {
@@ -3072,7 +3094,7 @@
 
             if (!TextUtils.isEmpty(ret.getString(numericIndex)) &&
                     ApnSettingUtils.mvnoMatches(iccRecords,
-                            ApnSetting.getMvnoTypeIntFromString(ret.getString(mvnoIndex)),
+                            getMvnoTypeIntFromString(ret.getString(mvnoIndex)),
                             ret.getString(mvnoDataIndex))) {
                 // 1. APN query result based on legacy SIM MCC/MCC and MVNO
                 currentCursor.addRow(data);
@@ -3779,15 +3801,6 @@
         throw new SecurityException("No permission to write APN settings");
     }
 
-    private void checkPhonePrivilegePermission() {
-        int status = getContext().checkCallingOrSelfPermission(
-                "android.permission.READ_PRIVILEGED_PHONE_STATE");
-        if (status == PackageManager.PERMISSION_GRANTED) {
-            return;
-        }
-        throw new SecurityException("No phone privilege permission");
-    }
-
     private DatabaseHelper mOpenHelper;
 
     private void restoreDefaultAPN(int subId) {
@@ -3849,7 +3862,7 @@
                 String mvnoMatchData = cursor.getString(1 /* MVNO_MATCH_DATA index */);
                 if (!TextUtils.isEmpty(mvnoType) && !TextUtils.isEmpty(mvnoMatchData)
                         && ApnSettingUtils.mvnoMatches(iccRecords,
-                        ApnSetting.getMvnoTypeIntFromString(mvnoType), mvnoMatchData)) {
+                        getMvnoTypeIntFromString(mvnoType), mvnoMatchData)) {
                     where = NUMERIC + "='" + simOperator + "'"
                             + " AND " + MVNO_TYPE + "='" + mvnoType + "'"
                             + " AND " + MVNO_MATCH_DATA + "='" + mvnoMatchData + "'"
@@ -3996,4 +4009,10 @@
     private static void loge(String s) {
         Log.e(TAG, s);
     }
+
+    private static int getMvnoTypeIntFromString(String mvnoType) {
+        String mvnoTypeString = TextUtils.isEmpty(mvnoType) ? mvnoType : mvnoType.toLowerCase();
+        Integer mvnoTypeInt = MVNO_TYPE_STRING_MAP.get(mvnoTypeString);
+        return  mvnoTypeInt == null ? UNSPECIFIED_INT : mvnoTypeInt;
+    }
 }
diff --git a/tests/src/com/android/providers/telephony/CarrierIdProviderTest.java b/tests/src/com/android/providers/telephony/CarrierIdProviderTest.java
index bc39260..13917ff 100644
--- a/tests/src/com/android/providers/telephony/CarrierIdProviderTest.java
+++ b/tests/src/com/android/providers/telephony/CarrierIdProviderTest.java
@@ -81,8 +81,8 @@
 
     private class FakeContentResolver extends MockContentResolver {
         @Override
-        public void notifyChange(Uri uri, ContentObserver observer, boolean syncToNetwork) {
-            super.notifyChange(uri, observer, syncToNetwork);
+        public void notifyChange(Uri uri, ContentObserver observer) {
+            super.notifyChange(uri, observer);
             Log.d(TAG, "onChanged(uri=" + uri + ")" + observer);
             mContentObserver.dispatchChange(false, uri);
         }