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authorZach Hilman <zachhilman@gmail.com>2019-04-10 18:24:44 +0200
committerZach Hilman <zachhilman@gmail.com>2019-09-21 22:43:10 +0200
commit9d9fc8a675ffa35998830a0a5670dd1ca288112f (patch)
treea6d014316eb92ea2209c73df5c5b6fbfe56d9f72
parentregistered_cache: Implement PlaceholderCache to manage placeholder and installing content (diff)
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-rw-r--r--src/core/file_sys/registered_cache.cpp39
1 files changed, 23 insertions, 16 deletions
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp
index 93a20ab94..afa87be9c 100644
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -48,19 +48,22 @@ static bool FollowsTwoDigitDirFormat(std::string_view name) {
static bool FollowsNcaIdFormat(std::string_view name) {
static const std::regex nca_id_regex("[0-9A-F]{32}\\.nca", std::regex_constants::ECMAScript |
std::regex_constants::icase);
- return name.size() == 36 && std::regex_match(name.begin(), name.end(), nca_id_regex);
+ static const std::regex nca_id_cnmt_regex(
+ "[0-9A-F]{32}\\.cnmt.nca", std::regex_constants::ECMAScript | std::regex_constants::icase);
+ return (name.size() == 36 && std::regex_match(name.begin(), name.end(), nca_id_regex)) ||
+ (name.size() == 41 && std::regex_match(name.begin(), name.end(), nca_id_cnmt_regex));
}
static std::string GetRelativePathFromNcaID(const std::array<u8, 16>& nca_id, bool second_hex_upper,
- bool within_two_digit) {
- if (!within_two_digit) {
- return fmt::format("/{}.nca", Common::HexToString(nca_id, second_hex_upper));
- }
+ bool within_two_digit, bool cnmt_suffix) {
+ if (!within_two_digit)
+ return fmt::format(cnmt_suffix ? "{}.cnmt.nca" : "/{}.nca",
+ Common::HexArrayToString(nca_id, second_hex_upper));
Core::Crypto::SHA256Hash hash{};
mbedtls_sha256(nca_id.data(), nca_id.size(), hash.data(), 0);
- return fmt::format("/000000{:02X}/{}.nca", hash[0],
- Common::HexToString(nca_id, second_hex_upper));
+ return fmt::format(cnmt_suffix ? "/000000{:02X}/{}.cnmt.nca" : "/000000{:02X}/{}.nca", hash[0],
+ Common::HexArrayToString(nca_id, second_hex_upper));
}
static std::string GetCNMTName(TitleType type, u64 title_id) {
@@ -319,14 +322,18 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
VirtualFile RegisteredCache::GetFileAtID(NcaID id) const {
VirtualFile file;
- // Try all four modes of file storage:
- // (bit 1 = uppercase/lower, bit 0 = within a two-digit dir)
- // 00: /000000**/{:032X}.nca
- // 01: /{:032X}.nca
- // 10: /000000**/{:032x}.nca
- // 11: /{:032x}.nca
- for (u8 i = 0; i < 4; ++i) {
- const auto path = GetRelativePathFromNcaID(id, (i & 0b10) == 0, (i & 0b01) == 0);
+ // Try all five relevant modes of file storage:
+ // (bit 2 = uppercase/lower, bit 1 = within a two-digit dir, bit 0 = .cnmt suffix)
+ // 000: /000000**/{:032X}.nca
+ // 010: /{:032X}.nca
+ // 100: /000000**/{:032x}.nca
+ // 110: /{:032x}.nca
+ // 111: /{:032x}.cnmt.nca
+ for (u8 i = 0; i < 8; ++i) {
+ if ((i % 2) == 1 && i != 7)
+ continue;
+ const auto path =
+ GetRelativePathFromNcaID(id, (i & 0b100) == 0, (i & 0b010) == 0, (i & 0b001) == 0b001);
file = OpenFileOrDirectoryConcat(dir, path);
if (file != nullptr)
return file;
@@ -622,7 +629,7 @@ InstallResult RegisteredCache::RawInstallNCA(const NCA& nca, const VfsCopyFuncti
memcpy(id.data(), hash.data(), 16);
}
- std::string path = GetRelativePathFromNcaID(id, false, true);
+ std::string path = GetRelativePathFromNcaID(id, false, true, false);
if (GetFileAtID(id) != nullptr && !overwrite_if_exists) {
LOG_WARNING(Loader, "Attempting to overwrite existing NCA. Skipping...");