函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\integrity\ima\ima_api.c Create Date:2022-07-27 22:02:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：ma_store_measurement - store file measurement* Create an "ima" template and then store the template by calling* ima_store_template

函数原型：void ima_store_measurement(struct integrity_iint_cache *iint, struct file *file, const unsigned char *filename, struct evm_ima_xattr_data *xattr_value, int xattr_len, const struct modsig *modsig, int pcr, struct ima_template_desc *template_desc)

返回类型：void

参数：

类型参数名称
struct integrity_iint_cache *iint
struct file *file
const unsigned char *filename
struct evm_ima_xattr_data *xattr_value
intxattr_len
const struct modsig *modsig
intpcr
struct ima_template_desc *template_desc
299  op[]等于"add_template_measure"
300  audit_cause[]等于"ENOMEM"
301  result等于负ENOMEM
302  inode等于file_inode(file)
304  struct ima_event_data event_data = {iint = iint, file = file, filename = filename, xattr_value = xattr_value, xattr_len = xattr_len, modsig = modsig}
310  violation等于0
318  如果measured_pcrs按位与0x1左移pcr位且非modsig则返回
321  result等于ma_alloc_init_template - create and initialize a new template entry
322  如果result小于0则
323  integrity_audit_msg(PCR invalidation msgs , inode, filename, op, audit_cause, result, 0)
325  返回
328  result等于ma_store_template - store ima template measurements* Calculate the hash of a template entry, add the template entry* to an ordered list of measurement entries maintained inside the kernel,* and also update the aggregate integrity value (maintained inside
329  如果非result或result恒等于负EEXIST的值且非f_flags按位与O_DIRECT的值则
330  flags或等于IMA_MEASURED
331  measured_pcrs或等于0x1左移pcr位
333  如果result小于0则ma_free_template_entry - free an existing template entry
调用者
名称描述
process_measurement