485     memcpy(metadata.get(), &v->header, sizeof(v->header));  in rewrite_metadata()
490     check(sizeof(v->header) + len <= VERITY_METADATA_SIZE);  in rewrite_metadata()
491     memcpy(metadata.get() + sizeof(v->header), v->table.data(), len);  in rewrite_metadata()
496 static int validate_header(const fec_handle *f, const verity_header *header,  in validate_header()  argument
500     check(header);  in validate_header()
502     if (header->magic != VERITY_MAGIC &&  in validate_header()
503         header->magic != VERITY_MAGIC_DISABLE) {  in validate_header()
507     if (header->version != VERITY_VERSION) {  in validate_header()
508         error("unsupported verity version %u", header->version);  in validate_header()
512     if (header->length < VERITY_MIN_TABLE_SIZE ||  in validate_header()
513         header->length > VERITY_MAX_TABLE_SIZE) {  in validate_header()
516             stringify(VERITY_MAX_TABLE_SIZE) ")", header->length);  in validate_header()
524     if (offset > UINT64_MAX - header->length) {  in validate_header()
525         error("invalid verity table length: %u", header->length);  in validate_header()
527     } else if (offset + header->length >= f->data_size) {  in validate_header()
528         error("invalid verity table length: %u", header->length);  in validate_header()
551     if (!raw_pread(f->fd, &v->header, sizeof(v->header), offset)) {  in verity_parse_header()
558     if (v->header.magic == VERITY_MAGIC_DISABLE) {  in verity_parse_header()
570     if (validate_header(f, &v->header, offset)) {  in verity_parse_header()
579         if (!v->disabled && v->header.magic != v->ecc_header.magic) {  in verity_parse_header()
581             v->header.magic = v->ecc_header.magic;  in verity_parse_header()
584         if (v->header.version != v->ecc_header.version) {  in verity_parse_header()
586             v->header.version = v->ecc_header.version;  in verity_parse_header()
589         if (v->header.length != v->ecc_header.length) {  in verity_parse_header()
591             v->header.length = v->ecc_header.length;  in verity_parse_header()
594         if (memcmp(v->header.signature, v->ecc_header.signature,  in verity_parse_header()
595                 sizeof(v->header.signature))) {  in verity_parse_header()
604     if (parse_table(f, offset + sizeof(v->header), v->header.length,  in verity_parse_header()
606         parse_table(f, offset + sizeof(v->header), v->header.length,  in verity_parse_header()