From f25b977740e388b458fcdbb8e3c43b957f0beaf3 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Mon, 16 Dec 2019 18:32:00 -0800
Subject: Set Casefold and PrjQuotas in Factory Reset

This sets up devices to have casefolding and project quotas if they have
enabled the relevant product properties. For ext4, we must set wide
inodes at makefs time, but other things are enabled by fs_mgr with
tune2fs at boot time.

Bug: 138321217
Bug: 138322712
Test: Enable on a device.
      Reformat from recovery. Check that /data has the expected values
      using tune2fs/f2fs.fsck
Change-Id: If706a3cad591f311eb904df4deca531d0b3fe0c4
---
 recovery_utils/roots.cpp | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/recovery_utils/roots.cpp b/recovery_utils/roots.cpp
index fe3a07aa2..127039872 100644
--- a/recovery_utils/roots.cpp
+++ b/recovery_utils/roots.cpp
@@ -30,6 +30,7 @@
 #include <vector>
 
 #include <android-base/logging.h>
+#include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <android-base/unique_fd.h>
 #include <cryptfs.h>
@@ -152,6 +153,14 @@ int format_volume(const std::string& volume, const std::string& directory) {
     return -1;
   }
 
+  bool needs_casefold = false;
+  bool needs_projid = false;
+
+  if (volume == "/data") {
+    needs_casefold = android::base::GetBoolProperty("ro.emulated_storage.casefold", false);
+    needs_projid = android::base::GetBoolProperty("ro.emulated_storage.projid", false);
+  }
+
   // If there's a key_loc that looks like a path, it should be a block device for storing encryption
   // metadata. Wipe it too.
   if (!v->key_loc.empty() && v->key_loc[0] == '/') {
@@ -187,6 +196,12 @@ int format_volume(const std::string& volume, const std::string& directory) {
       "/system/bin/mke2fs", "-F", "-t", "ext4", "-b", std::to_string(kBlockSize),
     };
 
+    // Project ID's require wider inodes. The Quotas themselves are enabled by tune2fs on boot.
+    if (needs_projid) {
+      mke2fs_args.push_back("-I");
+      mke2fs_args.push_back("512");
+    }
+
     int raid_stride = v->logical_blk_size / kBlockSize;
     int raid_stripe_width = v->erase_blk_size / kBlockSize;
     // stride should be the max of 8KB and logical block size
@@ -224,8 +239,18 @@ int format_volume(const std::string& volume, const std::string& directory) {
     "/system/bin/make_f2fs",
     "-g",
     "android",
-    v->blk_device,
   };
+  if (needs_projid) {
+    make_f2fs_cmd.push_back("-O");
+    make_f2fs_cmd.push_back("project_quota,extra_attr");
+  }
+  if (needs_casefold) {
+    make_f2fs_cmd.push_back("-O");
+    make_f2fs_cmd.push_back("casefold");
+    make_f2fs_cmd.push_back("-C");
+    make_f2fs_cmd.push_back("utf8");
+  }
+  make_f2fs_cmd.push_back(v->blk_device);
   if (length >= kSectorSize) {
     make_f2fs_cmd.push_back(std::to_string(length / kSectorSize));
   }
-- 
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