ima_calc_field_array_hash

函数名称：Calculate the hash of template data

函数原型：static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data, struct ima_template_desc *td, int num_fields, struct ima_digest_data *hash, struct crypto_shash *tfm)

返回类型：int

参数：

类型	参数	名称
struct ima_field_data *	field_data
struct ima_template_desc *	td
int	num_fields
struct ima_digest_data *	hash
struct crypto_shash *	tfm

472

SHASH_DESC_ON_STACK(shash, tfm)

475

tfm等于tfm

477

length等于获得消息文摘大小

479

rc等于rypto_shash_init() - (re)initialize message digest*@desc: operational state handle that is already filled* The call (re-)initializes the message digest referenced by the* operational state handle. Any potentially existing state created by

480

如果rc不等于0则返回:rc

483

以i小于num_fields 循环

484

u8 buffer[256] = {0}

485

data_to_hash等于data

486

datalen等于len

487

datalen_to_hash等于如果非ima_canonical_fmt则datalen否则cpu_to_le32(datalen)

490

如果字符串比较不等于0则

491

rc等于rypto_shash_update() - add data to message digest for processing*@desc: operational state handle that is already initialized*@data: input data to be added to the message digest*@len: length of the input data

494

如果rc则退出

496

否则如果字符串比较恒等于0则

497

memcpy(buffer, data_to_hash, datalen)

498

data_to_hash等于buffer

499

datalen等于IMA_EVENT_NAME_LEN_MAX加1

501

502

如果rc则退出

506

如果非rc则rc等于rypto_shash_final() - calculate message digest*@desc: operational state handle that is already filled with data*@out: output buffer filled with the message digest* Finalize the message digest operation and create the message digest

509

返回:rc

**调用者**
名称	描述
ima_calc_field_array_hash

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告