函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\integrity\ima\ima_crypto.c Create Date:2022-07-27 22:01:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Calculate the boot aggregate hash

函数原型：static int __init ima_calc_boot_aggregate_tfm(char *digest, struct crypto_shash *tfm)

返回类型：int

参数：

类型参数名称
char *digest
struct crypto_shash *tfm
663  struct tpm_digest d = {alg_id = TPM_ALG_SHA1, digest = {0}}
666  SHASH_DESC_ON_STACK(shash, tfm)
668  tfm等于tfm
670  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
671  如果rc不等于0则返回:rc
675  以i小于TPM_PCR8循环
676  ima_pcrread(i, & d)
678  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
680  如果非rc则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
682  返回:rc
调用者
名称描述
ima_calc_boot_aggregate