104     uint64_t hashes = file_size / FEC_BLOCKSIZE;  in verity_get_size()
111         hashes = fec_div_round_up(hashes * padded_digest_size, FEC_BLOCKSIZE);  in verity_get_size()
121     return total * FEC_BLOCKSIZE;  in verity_get_size()
132     EVP_DigestUpdate(mdctx, block, FEC_BLOCKSIZE);  in get_hash()
195     if (fec_pread(f, data, FEC_BLOCKSIZE, data_offset) != FEC_BLOCKSIZE) {  in ecc_read_hashes()
208     uint8_t data[FEC_BLOCKSIZE];  in verify_tree()
213     uint64_t hash_size = verity_get_size(data_blocks * FEC_BLOCKSIZE, &levels,  in verify_tree()
220     uint64_t data_offset = hash_offset + FEC_BLOCKSIZE;  in verify_tree()
223     if (!raw_pread(f->fd, data, FEC_BLOCKSIZE, hash_offset) ||  in verify_tree()
232                    !raw_pwrite(f->fd, data, FEC_BLOCKSIZE, hash_offset)) {  in verify_tree()
243     verity_get_size(data_blocks * FEC_BLOCKSIZE, NULL, hashes,  in verify_tree()
256         data_offset += blocks * FEC_BLOCKSIZE;  in verify_tree()
260     check(hash_data_blocks <= hash_size / FEC_BLOCKSIZE);  in verify_tree()
263     check(hash_data_offset <= UINT64_MAX - (hash_data_blocks * FEC_BLOCKSIZE));  in verify_tree()
265     check(hash_data_offset + hash_data_blocks * FEC_BLOCKSIZE <= f->data_size);  in verify_tree()
269     std::vector<uint8_t> data_hashes(hash_data_blocks * FEC_BLOCKSIZE, 0);  in verify_tree()
272     data_offset = hash_offset + FEC_BLOCKSIZE;  in verify_tree()
283                 !raw_pread(f->fd, data, FEC_BLOCKSIZE,  in verify_tree()
284                            data_offset + j * FEC_BLOCKSIZE)) {  in verify_tree()
294                                      data_offset + j * FEC_BLOCKSIZE, data) ||  in verify_tree()
308                         !raw_pwrite(f->fd, data, FEC_BLOCKSIZE,  in verify_tree()
309                                     data_offset + j * FEC_BLOCKSIZE)) {  in verify_tree()
317                 std::copy(data, data + FEC_BLOCKSIZE,  in verify_tree()
318                           data_hashes.begin() + j * FEC_BLOCKSIZE);  in verify_tree()
323         data_offset += blocks * FEC_BLOCKSIZE;  in verify_tree()
330     std::vector<uint8_t> zero_block(FEC_BLOCKSIZE, 0);  in verify_tree()
384             if (token != stringify(FEC_BLOCKSIZE)) {  in parse_table()
390             if (parse_uint64(token.c_str(), f->data_size / FEC_BLOCKSIZE,  in parse_table()
398             if (parse_uint64(token.c_str(), f->data_size / FEC_BLOCKSIZE,  in parse_table()
404             hash_start *= FEC_BLOCKSIZE;  in parse_table()
447         check(data_blocks == v->metadata_start / FEC_BLOCKSIZE);  in parse_table()
449         check(data_blocks == hash_start / FEC_BLOCKSIZE);  in parse_table()