函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\selinux\hooks.c Create Date:2022-07-27 20:30:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：selinux_file_lock

函数原型：static int selinux_file_lock(struct file *file, unsigned int cmd)

返回类型：int

参数：

类型参数名称
struct file *file
unsigned intcmd
3779  cred等于current_cred - Access the current task's subjective credentials* Access the subjective credentials of the current task. RCU-safe,* since nobody else can modify it.()
3781  返回:Check whether a task can use an open file descriptor toaccess an inode in a given way. Check access to thedescriptor itself, and then use dentry_has_perm tocheck a particular permission to the file.Access to the descriptor is implicitly granted if it