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[Kernel/VFS] Add maximum size for thumbnails read from headers

This commit is contained in:
emoose 2020-01-11 18:47:06 +00:00 committed by illusion98
parent 7bf3d257ef
commit 79081ca272
2 changed files with 12 additions and 7 deletions
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16
src/xenia/kernel/xam/content_package.cc
View File

@ -118,9 +118,10 @@ X_RESULT FolderContentPackage::GetThumbnail(std::vector<uint8_t>* buffer) {
sizeof(vfs::StfsHeader)); sizeof(vfs::StfsHeader));
if (map) { if (map) {
auto* header = (vfs::StfsHeader*)map->data(); auto* header = (vfs::StfsHeader*)map->data();
buffer->resize(header->metadata.thumbnail_size); uint32_t thumb_size = std::min((uint32_t)header->metadata.thumbnail_size,
memcpy(buffer->data(), header->metadata.thumbnail, xe::vfs::XContentMetadata::kThumbLengthV1);
header->metadata.thumbnail_size); buffer->resize(thumb_size);
memcpy(buffer->data(), header->metadata.thumbnail, thumb_size);
result = X_ERROR_SUCCESS; result = X_ERROR_SUCCESS;
} }
} }
@ -171,14 +172,15 @@ X_RESULT StfsContentPackage::GetThumbnail(std::vector<uint8_t>* buffer) {
if (!device_inited_) { if (!device_inited_) {
return X_ERROR_DEVICE_NOT_CONNECTED; return X_ERROR_DEVICE_NOT_CONNECTED;
} }
buffer->resize(header_.metadata.thumbnail_size); uint32_t thumb_size = std::min((uint32_t)header_.metadata.thumbnail_size,
memcpy(buffer->data(), header_.metadata.thumbnail, xe::vfs::XContentMetadata::kThumbLengthV1);
header_.metadata.thumbnail_size); buffer->resize(thumb_size);
memcpy(buffer->data(), header_.metadata.thumbnail, thumb_size);
return X_ERROR_SUCCESS; return X_ERROR_SUCCESS;
} }
X_RESULT StfsContentPackage::SetThumbnail(std::vector<uint8_t> buffer) { X_RESULT StfsContentPackage::SetThumbnail(std::vector<uint8_t> buffer) {
return X_ERROR_FUNCTION_FAILED; // can't write to STFS headers right now return X_ERROR_FUNCTION_FAILED; // can't write to STFS package right now
} }
X_RESULT StfsContentPackage::Delete() { X_RESULT StfsContentPackage::Delete() {

3
src/xenia/vfs/devices/stfs_container_device.h
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@ -167,6 +167,9 @@ enum class XContentVolumeType : uint32_t {
}; };
struct XContentMetadata { struct XContentMetadata {
static const uint32_t kThumbLength = 0x3D00;
static const uint32_t kThumbLengthV1 = 0x4000;
xe::be<XContentType> content_type; xe::be<XContentType> content_type;
xe::be<uint32_t> metadata_version; xe::be<uint32_t> metadata_version;
xe::be<uint64_t> content_size; xe::be<uint64_t> content_size;