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fs.mitm: add flag support for writing bis/reading cal0

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This commit is contained in:
Michael Scire 2018-11-29 12:30:32 -08:00
parent 67ff4fe913
commit ae4d29a49f
3 changed files with 21 additions and 7 deletions
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12
stratosphere/fs_mitm/source/fsmitm_service.cpp
View file

@ -100,11 +100,13 @@ Result FsMitmService::OpenBisStorage(Out<std::shared_ptr<IStorageInterface>> out
rc = fsOpenBisStorageFwd(this->forward_service.get(), &bis_storage, bis_partition_id);
if (R_SUCCEEDED(rc)) {
const bool is_sysmodule = this->title_id < 0x0100000000001000;
const bool has_bis_write_flag = Utils::HasFlag(this->title_id, "bis_write");
const bool has_cal0_read_flag = Utils::HasFlag(this->title_id, "cal_read");
if (bis_partition_id == BisStorageId_Boot0) {
storage = std::make_shared<IStorageInterface>(new Boot0Storage(bis_storage, this->title_id));
} else if (bis_partition_id == BisStorageId_Prodinfo) {
/* PRODINFO should *never* be writable. */
if (is_sysmodule) {
if (is_sysmodule || has_cal0_read_flag) {
storage = std::make_shared<IStorageInterface>(new ROProxyStorage(bis_storage));
} else {
/* Do not allow non-sysmodules to read *or* write CAL0. */
@ -112,12 +114,12 @@ Result FsMitmService::OpenBisStorage(Out<std::shared_ptr<IStorageInterface>> out
return 0x320002;
}
} else {
if (!is_sysmodule) {
/* Non-sysmodules should be allowed to read. */
storage = std::make_shared<IStorageInterface>(new ROProxyStorage(bis_storage));
} else {
if (is_sysmodule || has_bis_write_flag) {
/* Sysmodules should still be allowed to read and write. */
storage = std::make_shared<IStorageInterface>(new ProxyStorage(bis_storage));
} else {
/* Non-sysmodules should be allowed to read. */
storage = std::make_shared<IStorageInterface>(new ROProxyStorage(bis_storage));
}
}
if (out_storage.IsDomain()) {

12
stratosphere/fs_mitm/source/fsmitm_utils.cpp
View file

@ -346,7 +346,7 @@ Result Utils::SaveSdFileForAtmosphere(u64 title_id, const char *fn, void *data,
return rc;
}
bool Utils::HasFlag(u64 tid, const char *flag) {
bool Utils::HasTitleFlag(u64 tid, const char *flag) {
if (IsSdInitialized()) {
FsFile f;
char flag_path[FS_MAX_PATH];
@ -381,6 +381,16 @@ bool Utils::HasGlobalFlag(const char *flag) {
return false;
}
bool Utils::HasHblFlag(const char *flag) {
char hbl_flag[FS_MAX_PATH] = {0};
snprintf(hbl_flag, sizeof(hbl_flag), "hbl_%s", flag);
return HasGlobalFlag(hbl_flag);
}
bool Utils::HasFlag(u64 tid, const char *flag) {
return HasTitleFlag(tid, flag) || (tid == g_override_hbl_tid && HasHblFlag(flag));
}
bool Utils::HasSdMitMFlag(u64 tid) {
if (tid == g_override_hbl_tid) {
return true;

4
stratosphere/fs_mitm/source/fsmitm_utils.hpp
View file

@ -58,8 +58,10 @@ class Utils {
/* SD card Initialization + MitM detection. */
static void InitializeSdThreadFunc(void *args);
static bool HasFlag(u64 tid, const char *flag);
static bool HasTitleFlag(u64 tid, const char *flag);
static bool HasHblFlag(const char *flag);
static bool HasGlobalFlag(const char *flag);
static bool HasFlag(u64 tid, const char *flag);
static bool HasSdMitMFlag(u64 tid);
static bool HasSdDisableMitMFlag(u64 tid);