init: early_mount: disallow partitions to be verified at boot
While technically possible, the verification at boot basically will
block init for as long as the entire partition is read while nothing
else is running. Disallow that as this is not going to be used anywhere.
Bug: 27805372
Test: boot angler with verifyatboot fs_mgr option for early mounted
vendor partition. That resulted in a panic() as expected.
Change-Id: I9da5caa163cae8bce6dbfb630f0ed5605ea044a0
Signed-off-by: Sandeep Patil <sspatil@google.com>
diff --git a/init/init.cpp b/init/init.cpp
index 702186c..2399f5c 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -799,6 +799,14 @@
return true;
}
+ // don't allow verifyatboot for early mounted partitions
+ if ((odm_rec && fs_mgr_is_verifyatboot(odm_rec)) ||
+ (system_rec && fs_mgr_is_verifyatboot(system_rec)) ||
+ (vendor_rec && fs_mgr_is_verifyatboot(vendor_rec))) {
+ LOG(ERROR) << "Early mount partitions can't be verified at boot";
+ return false;
+ }
+
// assume A/B device if we find 'slotselect' in any fstab entry
bool is_ab = ((odm_rec && fs_mgr_is_slotselect(odm_rec)) ||
(system_rec && fs_mgr_is_slotselect(system_rec)) ||