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PRODINFO: Revamp blanking/write disallow policy. (#913)

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* exo/fusee: hookup new prodinfo settings

* fusee: new scheme doesn't need FLAGS_DEFAULT

* fusee: fix c/p errors

* ams.mitm: completely revamp prodinfo backup mechanism

* ams.mitm: Implement revamped blanking/write policy

* strat: make early boot more debuggable

* exo: condense flag logic
This commit is contained in:
SciresM
2020-04-22 16:22:14 -07:00
committed by GitHub
parent 6ac1ff6f24
commit 3bc2d79384
42 changed files with 1355 additions and 142 deletions
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13
stratosphere/ams_mitm/source/fs_mitm/fs_mitm_service.cpp
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@@ -14,9 +14,11 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../amsmitm_fs_utils.hpp"
#include "../amsmitm_initialization.hpp"
#include "fs_shim.h"
#include "fs_mitm_service.hpp"
#include "fsmitm_boot0storage.hpp"
#include "fsmitm_calibration_binary_storage.hpp"
#include "fsmitm_layered_romfs_storage.hpp"
#include "fsmitm_save_utils.hpp"
#include "fsmitm_readonly_layered_filesystem.hpp"
@@ -252,7 +254,6 @@ namespace ams::mitm::fs {
const bool is_sysmodule = ncm::IsSystemProgramId(this->client_info.program_id);
const bool is_hbl = this->client_info.override_status.IsHbl();
const bool can_write_bis = is_sysmodule || (is_hbl && GetSettingsItemBooleanValue("atmosphere", "enable_hbl_bis_write"));
const bool can_read_cal = is_sysmodule || (is_hbl && GetSettingsItemBooleanValue("atmosphere", "enable_hbl_cal_read"));
/* Allow HBL to write to boot1 (safe firm) + package2. */
/* This is needed to not break compatibility with ChoiDujourNX, which does not check for write access before beginning an update. */
@@ -265,15 +266,7 @@ namespace ams::mitm::fs {
if (bis_partition_id == FsBisPartitionId_BootPartition1Root) {
out.SetValue(std::make_shared<IStorageInterface>(new Boot0Storage(bis_storage, this->client_info)), target_object_id);
} else if (bis_partition_id == FsBisPartitionId_CalibrationBinary) {
/* PRODINFO should *never* be writable. */
/* If we have permissions, create a read only storage. */
if (can_read_cal) {
out.SetValue(std::make_shared<IStorageInterface>(new ReadOnlyStorageAdapter(new RemoteStorage(bis_storage))), target_object_id);
} else {
/* If we can't read cal, return permission denied. */
fsStorageClose(&bis_storage);
return fs::ResultPermissionDenied();
}
out.SetValue(std::make_shared<IStorageInterface>(new CalibrationBinaryStorage(bis_storage, this->client_info)), target_object_id);
} else {
if (can_write_bis || can_write_bis_for_choi_support) {
/* We can write, so create a writable storage. */