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 20:28:21
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：selinux_binder_transfer_file

函数原型：static int selinux_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)

返回类型：int

参数：

类型参数名称
struct task_struct *from
struct task_struct *to
struct file *file
2091  sid等于get the objective security ID of a task
2092  fsec等于selinux_file(file)
2093  dentry等于dentry
2098  type等于LSM_AUDIT_DATA_PATH
2099  path等于f_path
2101  如果sid不等于 SID of open file description 则
2102  rc等于avc_has_perm - Check permissions and perform any appropriate auditing
2107  如果rc则返回:rc
2117  如果此条件成立可能性小(为编译器优化)(IS_PRIVATE(d_backing_inode - Get upper or lower inode we should be using*@upper: The upper layer* This is the helper that should be used to get at the inode that will be used* if this dentry were to be opened as a file. The inode may be on the upper))则返回:0
2120  isec等于Get the security label of a dentry's backing inode.
2121  返回:avc_has_perm - Check permissions and perform any appropriate auditing