函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\smack\smack_lsm.c Create Date:2022-07-27 20:49:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：smack_inode_link - Smack check on link*@old_dentry: the existing object*@dir: unused*@new_dentry: the new object* Returns 0 if access is permitted, an error code otherwise

函数原型：static int smack_inode_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)

返回类型：int

参数：

类型参数名称
struct dentry *old_dentry
struct inode *dir
struct dentry *new_dentry
1038  some inline functions to set up audit data* they do nothing if CONFIG_AUDIT is not set
1039  smk_ad_setfield_u_fs_path_dentry( & ad, old_dentry)
1041  isp等于Present a pointer to the smack label entry in an inode blob.
1042  rc等于smk_curacc - determine if current has a specific access to an object*@obj_known: a pointer to the object's Smack label entry*@mode: the access requested, in "MAY" format*@a : common audit data* This function checks the current subject label/object label
1043  rc等于smk_bu_inode(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, MAY_WRITE, rc)
1045  如果rc恒等于0且d_is_positive(new_dentry)则
1046  isp等于Present a pointer to the smack label entry in an inode blob.
1047  smk_ad_setfield_u_fs_path_dentry( & ad, new_dentry)
1048  rc等于smk_curacc - determine if current has a specific access to an object*@obj_known: a pointer to the object's Smack label entry*@mode: the access requested, in "MAY" format*@a : common audit data* This function checks the current subject label/object label
1049  rc等于smk_bu_inode(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, MAY_WRITE, rc)
1052  返回:rc