78     DataView view = {.buffer = {}, .data = input, .start = 0, .length = input.size()};  in update()  local
79     keymaster_error_t err = bufferData(view);  in update()
85         if (view.length > MAX_CHUNK_SIZE) {  in update()
86             err = updateInChunks(view, aToken, tToken, output);  in update()
91         vector<uint8_t> remaining = popNextChunk(view, view.length);  in update()
107     DataView view = {.buffer = {}, .data = inData, .start = 0, .length = inData.size()};  in finish()  local
111         appendBufferedData(view);  in finish()
112         if (view.length > MAX_CHUNK_SIZE) {  in finish()
113             auto err = updateInChunks(view, aToken, tToken, output);  in finish()
119         keymaster_error_t err = bufferData(view);  in finish()
123         appendBufferedData(view);  in finish()
125     vector<uint8_t> remaining = popNextChunk(view, view.length);  in finish()
139 void JavacardKeyMintOperation::blockAlign(DataView& view, uint16_t blockSize) {  in blockAlign()  argument
140     appendBufferedData(view);  in blockAlign()
141     uint16_t offset = getDataViewOffset(view, blockSize);  in blockAlign()
142     if (view.buffer.empty() && view.data.empty()) {  in blockAlign()
144     } else if (view.buffer.empty()) {  in blockAlign()
145         buffer_.insert(buffer_.end(), view.data.begin() + offset, view.data.end());  in blockAlign()
146     } else if (view.data.empty()) {  in blockAlign()
147         buffer_.insert(buffer_.end(), view.buffer.begin() + offset, view.buffer.end());  in blockAlign()
149         if (offset < view.buffer.size()) {  in blockAlign()
150             buffer_.insert(buffer_.end(), view.buffer.begin() + offset, view.buffer.end());  in blockAlign()
151             buffer_.insert(buffer_.end(), view.data.begin(), view.data.end());  in blockAlign()
153             offset = offset - view.buffer.size();  in blockAlign()
154             buffer_.insert(buffer_.end(), view.data.begin() + offset, view.data.end());  in blockAlign()
158     view.length = view.length - buffer_.size();  in blockAlign()
161 uint16_t JavacardKeyMintOperation::getDataViewOffset(DataView& view, uint16_t blockSize) {  in getDataViewOffset()  argument
167         offset = ((view.length / blockSize)) * blockSize;  in getDataViewOffset()
168         remaining = (view.length % blockSize);  in getDataViewOffset()
175         offset = ((view.length / blockSize)) * blockSize;  in getDataViewOffset()
178         if (view.length > macLength_) {  in getDataViewOffset()
179             offset = (view.length - macLength_);  in getDataViewOffset()
188 keymaster_error_t JavacardKeyMintOperation::bufferData(DataView& view) {  in bufferData()  argument
189     if (view.data.empty()) return KM_ERROR_OK;  // nothing to buffer  in bufferData()
192         buffer_.insert(buffer_.end(), view.data.begin(), view.data.end());  in bufferData()
197         view.start = 0;  in bufferData()
198         view.length = 0;  in bufferData()
202             buffer_.insert(buffer_.end(), view.data.begin(), view.data.end());  in bufferData()
208         view.start = 0;  in bufferData()
209         view.length = 0;  in bufferData()
213         blockAlign(view, AES_BLOCK_SIZE);  in bufferData()
216         blockAlign(view, macLength_);  in bufferData()
220         blockAlign(view, DES_BLOCK_SIZE);  in bufferData()
229 keymaster_error_t JavacardKeyMintOperation::updateInChunks(DataView& view,  in updateInChunks()  argument
234     while (view.length > MAX_CHUNK_SIZE) {  in updateInChunks()
235         vector<uint8_t> chunk = popNextChunk(view, MAX_CHUNK_SIZE);  in updateInChunks()
247 vector<uint8_t> JavacardKeyMintOperation::popNextChunk(DataView& view, uint32_t chunkSize) {  in popNextChunk()  argument
248     uint32_t start = view.start;  in popNextChunk()
249     uint32_t end = start + ((view.length < chunkSize) ? view.length : chunkSize);  in popNextChunk()
251     if (start < view.buffer.size()) {  in popNextChunk()
252         if (end < view.buffer.size()) {  in popNextChunk()
253             chunk = {view.buffer.begin() + start, view.buffer.begin() + end};  in popNextChunk()
255             end = end - view.buffer.size();  in popNextChunk()
256             chunk = {view.buffer.begin() + start, view.buffer.end()};  in popNextChunk()
257             chunk.insert(chunk.end(), view.data.begin(), view.data.begin() + end);  in popNextChunk()
260         start = start - view.buffer.size();  in popNextChunk()
261         end = end - view.buffer.size();  in popNextChunk()
262         chunk = {view.data.begin() + start, view.data.begin() + end};  in popNextChunk()
264     view.start = view.start + chunk.size();  in popNextChunk()
265     view.length = view.length - chunk.size();  in popNextChunk()