fs_mgr: enable DT fstab based on its status node appropriately
Follow the typical device tree guidelines that a node is only enabled
if it does not have a 'status' property or if it does have a 'status'
property with a value of 'ok' or 'okay'.
Bug: 117933812
Test: status='disabled' DT fstab is not present when reading fstab
Change-Id: Icb4cbe654757658460aabfdb952d71fb8354e09e
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index fc3a05c..e89c91c 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -403,10 +403,13 @@
static bool is_dt_fstab_compatible() {
std::string dt_value;
std::string file_name = get_android_dt_dir() + "/fstab/compatible";
- if (read_dt_file(file_name, &dt_value)) {
- if (dt_value == "android,fstab") {
- return true;
- }
+
+ if (read_dt_file(file_name, &dt_value) && dt_value == "android,fstab") {
+ // If there's no status property or its set to "ok" or "okay", then we use the DT fstab.
+ std::string status_value;
+ std::string status_file_name = get_android_dt_dir() + "/fstab/status";
+ return !read_dt_file(status_file_name, &status_value) || status_value == "ok" ||
+ status_value == "okay";
}
return false;