Add build properties to enable casefold and prj_quota

This adds the ability to format f2fs and ext4 in a way that supports
casefolding and project quotas. Project quotas require wider inodes, and
thus cannot be enable apart from at build time. Casefolding can be
configured with f2fs.fsck/tune2fs later.

Both features are enabled via inheriting emulated_storage.mk in the
device.mk

Bug: 138322712
Bug: 138321217
Test: Enable on device with related patches, view fs configuration on /data
Change-Id: Ib1ab0589006ff1b3fb7478b7e9b0a8aad71e4b09

core/Makefile

@@ -1550,6 +1550,8 @@ $(if $(filter $(2),system),\
 $(if $(filter $(2),userdata),\
     $(if $(BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE),$(hide) echo "userdata_fs_type=$(BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE)" >> $(1))
     $(if $(BOARD_USERDATAIMAGE_PARTITION_SIZE),$(hide) echo "userdata_size=$(BOARD_USERDATAIMAGE_PARTITION_SIZE)" >> $(1))
+    $(if $(PRODUCT_FS_CASEFOLD),$(hide) echo "needs_casefold=$(PRODUCT_FS_CASEFOLD)" >> $(1))
+    $(if $(PRODUCT_QUOTA_PROJID),$(hide) echo "needs_projid=$(PRODUCT_QUOTA_PROJID)" >> $(1))
     $(hide) echo "userdata_selinux_fc=$(SELINUX_FC)" >> $(1)
 )
 $(if $(filter $(2),cache),\

target/product/emulated_storage.mk

@@ -0,0 +1,21 @@
+#
+# Copyright (C) 2020 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.
+#
+
+PRODUCT_QUOTA_PROJID := 1
+PRODUCT_PRODUCT_PROPERTIES += ro.emulated_storage.projid=1
+
+PRODUCT_FS_CASEFOLD := 1
+PRODUCT_PRODUCT_PROPERTIES += ro.emulated_storage.casefold=1

tools/releasetools/build_image.py

@@ -248,6 +248,8 @@ def BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config):
   build_command = []
   fs_type = prop_dict.get("fs_type", "")
   run_e2fsck = False
+  needs_projid = prop_dict.get("needs_projid", 0)
+  needs_casefold = prop_dict.get("needs_casefold", 0)
 
   if fs_type.startswith("ext"):
     build_command = [prop_dict["ext_mkuserimg"]]
@@ -287,7 +289,10 @@ def BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config):
         build_command.extend(["-S", prop_dict["hash_seed"]])
     if "ext4_share_dup_blocks" in prop_dict:
       build_command.append("-c")
-    build_command.extend(["--inode_size", "256"])
+    if (needs_projid):
+      build_command.extend(["--inode_size", "512"])
+    else:
+      build_command.extend(["--inode_size", "256"])
     if "selinux_fc" in prop_dict:
       build_command.append(prop_dict["selinux_fc"])
   elif fs_type.startswith("squash"):
@@ -328,6 +333,10 @@ def BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config):
     if "timestamp" in prop_dict:
       build_command.extend(["-T", str(prop_dict["timestamp"])])
     build_command.extend(["-L", prop_dict["mount_point"]])
+    if (needs_projid):
+      build_command.append("--prjquota")
+    if (needs_casefold):
+      build_command.append("--casefold")
   else:
     raise BuildImageError(
         "Error: unknown filesystem type: {}".format(fs_type))
@@ -598,6 +607,8 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
     copy_prop("flash_logical_block_size", "flash_logical_block_size")
     copy_prop("flash_erase_block_size", "flash_erase_block_size")
     copy_prop("userdata_selinux_fc", "selinux_fc")
+    copy_prop("needs_casefold", "needs_casefold")
+    copy_prop("needs_projid", "needs_projid")
   elif mount_point == "cache":
     copy_prop("cache_fs_type", "fs_type")
     copy_prop("cache_size", "partition_size")