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Create a new key to backup Sim-specific data.

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Bug: b/206309441
Test: b/206986278
Change-Id: I84b42690f8dd3de0cbd795cc13dd5f9ab5a7a725
Merged-In: I84b42690f8dd3de0cbd795cc13dd5f9ab5a7a725
This commit is contained in:
Jack Nudelman
2021-11-18 09:41:30 -08:00
parent eb2333936e
commit 5dff75b3d6
1 changed files with 8 additions and 1 deletions
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9
packages/SettingsProvider/src/com/android/providers/settings/SettingsBackupAgent.java
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@@ -98,6 +98,10 @@ public class SettingsBackupAgent extends BackupAgentHelper {
private static final String KEY_WIFI_NEW_CONFIG = "wifi_new_config";
private static final String KEY_DEVICE_SPECIFIC_CONFIG = "device_specific_config";
private static final String KEY_SIM_SPECIFIC_SETTINGS = "sim_specific_settings";
// Restoring sim-specific data backed up from newer Android version to Android 12 was causing a
// fatal crash. Creating a backup with a different key will prevent Android 12 versions from
// restoring this data.
private static final String KEY_SIM_SPECIFIC_SETTINGS_2 = "sim_specific_settings_2";
// Versioning of the state file. Increment this version
// number any time the set of state items is altered.
@@ -253,7 +257,7 @@ public class SettingsBackupAgent extends BackupAgentHelper {
deviceSpecificInformation, data);
stateChecksums[STATE_SIM_SPECIFIC_SETTINGS] =
writeIfChanged(stateChecksums[STATE_SIM_SPECIFIC_SETTINGS],
KEY_SIM_SPECIFIC_SETTINGS, simSpecificSettingsData, data);
KEY_SIM_SPECIFIC_SETTINGS_2, simSpecificSettingsData, data);
writeNewChecksums(stateChecksums, newState);
}
@@ -395,6 +399,9 @@ public class SettingsBackupAgent extends BackupAgentHelper {
break;
case KEY_SIM_SPECIFIC_SETTINGS:
// Intentional fall through so that sim-specific backups from Android 12 will
// also be restored on newer Android versions.
case KEY_SIM_SPECIFIC_SETTINGS_2:
byte[] restoredSimSpecificSettings = new byte[size];
data.readEntityData(restoredSimSpecificSettings, 0, size);
restoreSimSpecificSettings(restoredSimSpecificSettings);