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ncm: update client code to better reflect latest sysupdate

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This commit is contained in:
Michael Scire 2022-03-18 20:11:26 -07:00 • committed by SciresM
parent ca142889c4
commit 320a946fc7
28 changed files with 1432 additions and 110 deletions
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106
libraries/libstratosphere/source/ncm/ncm_content_meta_utils.cpp
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@ -20,12 +20,6 @@ namespace ams::ncm {
namespace {
using FilePathString = kvdb::BoundedString<64>;
bool IsContentMetaFileName(const char *name) {
return impl::PathView(name).HasSuffix(".cnmt");
}
Result MountContentMetaByRemoteFileSystemProxy(const char *mount_name, const char *path) {
return fs::MountContent(mount_name, path, fs::ContentType_Meta);
}
@ -34,10 +28,22 @@ namespace ams::ncm {
}
Result ReadContentMetaPath(AutoBuffer *out, const char *path) {
namespace impl {
Result MountContentMetaImpl(const char *mount_name, const char *path) {
R_RETURN(g_mount_content_meta_func(mount_name, path));
}
}
bool IsContentMetaFileName(const char *name) {
return impl::PathView(name).HasSuffix(".cnmt");
}
Result ReadContentMetaPathAlongWithExtendedDataAndDigest(AutoBuffer *out, const char *path) {
/* Mount the content. */
auto mount_name = impl::CreateUniqueMountName();
R_TRY(g_mount_content_meta_func(mount_name.str, path));
R_TRY(impl::MountContentMetaImpl(mount_name.str, path));
ON_SCOPE_EXIT { fs::Unmount(mount_name.str); };
/* Open the root directory. */
@ -59,7 +65,7 @@ namespace ams::ncm {
/* If this is the content meta file, parse it. */
if (IsContentMetaFileName(entry.name)) {
/* Create the file path. */
FilePathString file_path(root_path.str);
impl::FilePathString file_path(root_path.str);
file_path.Append(entry.name);
/* Open the content meta file. */
@ -76,19 +82,89 @@ namespace ams::ncm {
R_TRY(out->Initialize(meta_size));
/* Read the meta into the buffer. */
return fs::ReadFile(file, 0, out->Get(), meta_size);
R_RETURN(fs::ReadFile(file, 0, out->Get(), meta_size));
}
}
return ncm::ResultContentMetaNotFound();
R_THROW(ncm::ResultContentMetaNotFound());
}
Result ReadContentMetaPathAlongWithExtendedDataAndDigestSuppressingFsAbort(AutoBuffer *out, const char *path) {
fs::ScopedAutoAbortDisabler aad;
R_RETURN(ReadContentMetaPathAlongWithExtendedDataAndDigest(out, path));
}
Result ReadContentMetaPathWithoutExtendedDataOrDigest(AutoBuffer *out, const char *path) {
/* Mount the content. */
auto mount_name = impl::CreateUniqueMountName();
R_TRY(impl::MountContentMetaImpl(mount_name.str, path));
ON_SCOPE_EXIT { fs::Unmount(mount_name.str); };
/* Open the root directory. */
auto root_path = impl::GetRootDirectoryPath(mount_name);
fs::DirectoryHandle dir;
R_TRY(fs::OpenDirectory(std::addressof(dir), root_path.str, fs::OpenDirectoryMode_File));
ON_SCOPE_EXIT { fs::CloseDirectory(dir); };
/* Loop directory reading until we find the entry we're looking for. */
while (true) {
/* Read one entry, and finish when we fail to read. */
fs::DirectoryEntry entry;
s64 num_read;
R_TRY(fs::ReadDirectory(std::addressof(num_read), std::addressof(entry), dir, 1));
if (num_read == 0) {
break;
}
/* If this is the content meta file, parse it. */
if (IsContentMetaFileName(entry.name)) {
/* Create the file path. */
impl::FilePathString file_path(root_path.str);
file_path.Append(entry.name);
/* Open the content meta file. */
fs::FileHandle file;
R_TRY(fs::OpenFile(std::addressof(file), file_path, fs::OpenMode_Read));
ON_SCOPE_EXIT { fs::CloseFile(file); };
/* Get the meta size. */
s64 file_size;
R_TRY(fs::GetFileSize(std::addressof(file_size), file));
const size_t meta_file_size = static_cast<size_t>(file_size);
/* Check that the meta size is large enough. */
R_UNLESS(meta_file_size >= sizeof(PackagedContentMetaHeader), ncm::ResultInvalidContentMetaFileSize());
/* Read the header. */
PackagedContentMetaHeader header;
size_t read_size = 0;
R_TRY(fs::ReadFile(std::addressof(read_size), file, 0, std::addressof(header), sizeof(header)));
/* Check the right size was read. */
R_UNLESS(read_size == sizeof(PackagedContentMetaHeader), ncm::ResultInvalidContentMetaFileSize());
/* Determine the meta size. */
const size_t meta_size = PackagedContentMetaReader(std::addressof(header), sizeof(header)).GetExtendedDataOffset();
/* Create a buffer for the meta. */
R_TRY(out->Initialize(meta_size));
/* Read the meta into the buffer. */
R_RETURN(fs::ReadFile(file, 0, out->Get(), meta_size));
}
}
R_THROW(ncm::ResultContentMetaNotFound());
}
Result ReadContentMetaPathWithoutExtendedDataOrDigestSuppressingFsAbort(AutoBuffer *out, const char *path) {
fs::ScopedAutoAbortDisabler aad;
R_RETURN(ReadContentMetaPathAlongWithExtendedDataAndDigest(out, path));
}
Result ReadVariationContentMetaInfoList(s32 *out_count, std::unique_ptr<ContentMetaInfo[]> *out_meta_infos, const Path &path, FirmwareVariationId firmware_variation_id) {
AutoBuffer meta;
{
fs::ScopedAutoAbortDisabler aad;
R_TRY(ReadContentMetaPath(std::addressof(meta), path.str));
}
R_TRY(ReadContentMetaPathAlongWithExtendedDataAndDigestSuppressingFsAbort(std::addressof(meta), path.str));
/* Create a reader for the content meta. */
PackagedContentMetaReader reader(meta.Get(), meta.GetSize());