summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--core/java/com/android/server/SystemConfig.java16
-rw-r--r--services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java61
2 files changed, 77 insertions, 0 deletions
diff --git a/core/java/com/android/server/SystemConfig.java b/core/java/com/android/server/SystemConfig.java
index f364cb27888d..fb0b7fdd6ce3 100644
--- a/core/java/com/android/server/SystemConfig.java
+++ b/core/java/com/android/server/SystemConfig.java
@@ -663,6 +663,7 @@ public class SystemConfig {
readPermissions(parser, Environment.buildPath(f, "etc", "permissions"),
apexPermissionFlag);
}
+ pruneVendorApexPrivappAllowlists();
}
@VisibleForTesting
@@ -1526,6 +1527,21 @@ public class SystemConfig {
}
}
+ /**
+ * Prunes out any privileged permission allowlists bundled in vendor apexes.
+ */
+ @VisibleForTesting
+ public void pruneVendorApexPrivappAllowlists() {
+ for (String moduleName: mAllowedVendorApexes.keySet()) {
+ if (mApexPrivAppPermissions.containsKey(moduleName)
+ || mApexPrivAppDenyPermissions.containsKey(moduleName)) {
+ Slog.w(TAG, moduleName + " is a vendor apex, ignore its priv-app allowlist");
+ mApexPrivAppPermissions.remove(moduleName);
+ mApexPrivAppDenyPermissions.remove(moduleName);
+ }
+ }
+ }
+
private void readInstallInUserType(XmlPullParser parser,
Map<String, Set<String>> doInstallMap,
Map<String, Set<String>> nonInstallMap)
diff --git a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
index ca756f4778d5..bfdffc0e6567 100644
--- a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
+++ b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
@@ -360,6 +360,67 @@ public class SystemConfigTest {
.containsExactly("android.permission.BAR");
}
+ @Test
+ public void pruneVendorApexPrivappAllowlists_removeVendor()
+ throws Exception {
+ File apexDir = createTempSubfolder("apex");
+
+ // Read non-vendor apex permission allowlists
+ final String allowlistNonVendorContents =
+ "<privapp-permissions package=\"com.android.apk_in_non_vendor_apex\">"
+ + "<permission name=\"android.permission.FOO\"/>"
+ + "<deny-permission name=\"android.permission.BAR\"/>"
+ + "</privapp-permissions>";
+ File nonVendorPermDir =
+ createTempSubfolder("apex/com.android.non_vendor/etc/permissions");
+ File nonVendorPermissionFile =
+ createTempFile(nonVendorPermDir, "permissions.xml", allowlistNonVendorContents);
+ XmlPullParser nonVendorParser = readXmlUntilStartTag(nonVendorPermissionFile);
+ mSysConfig.readApexPrivAppPermissions(nonVendorParser, nonVendorPermissionFile,
+ apexDir.toPath());
+
+ // Read vendor apex permission allowlists
+ final String allowlistVendorContents =
+ "<privapp-permissions package=\"com.android.apk_in_vendor_apex\">"
+ + "<permission name=\"android.permission.BAZ\"/>"
+ + "<deny-permission name=\"android.permission.BAT\"/>"
+ + "</privapp-permissions>";
+ File vendorPermissionFile =
+ createTempFile(createTempSubfolder("apex/com.android.vendor/etc/permissions"),
+ "permissions.xml", allowlistNonVendorContents);
+ XmlPullParser vendorParser = readXmlUntilStartTag(vendorPermissionFile);
+ mSysConfig.readApexPrivAppPermissions(vendorParser, vendorPermissionFile,
+ apexDir.toPath());
+
+ // Read allowed vendor apex list
+ final String allowedVendorContents =
+ "<config>\n"
+ + " <allowed-vendor-apex package=\"com.android.vendor\" "
+ + "installerPackage=\"com.installer\" />\n"
+ + "</config>";
+ final File allowedVendorFolder = createTempSubfolder("folder");
+ createTempFile(allowedVendorFolder, "vendor-apex-allowlist.xml", allowedVendorContents);
+ readPermissions(allowedVendorFolder, /* Grant all permission flags */ ~0);
+
+ // Finally, prune non-vendor allowlists.
+ // There is no guarantee in which order the above reads will be done, however pruning
+ // will always happen last.
+ mSysConfig.pruneVendorApexPrivappAllowlists();
+
+ assertThat(mSysConfig.getApexPrivAppPermissions("com.android.non_vendor",
+ "com.android.apk_in_non_vendor_apex"))
+ .containsExactly("android.permission.FOO");
+ assertThat(mSysConfig.getApexPrivAppDenyPermissions("com.android.non_vendor",
+ "com.android.apk_in_non_vendor_apex"))
+ .containsExactly("android.permission.BAR");
+ assertThat(mSysConfig.getApexPrivAppPermissions("com.android.vendor",
+ "com.android.apk_in_vendor_apex"))
+ .isNull();
+ assertThat(mSysConfig.getApexPrivAppDenyPermissions("com.android.vendor",
+ "com.android.apk_in_vendor_apex"))
+ .isNull();
+ }
+
/**
* Tests that readPermissions works correctly for a library with on-bootclasspath-before
* and on-bootclasspath-since.