Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\smack\smack_access.c Create Date:2022-07-28 19:25:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name: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

Proto:int smk_curacc(struct smack_known *obj_known, unsigned int mode, struct smk_audit_info *a)

Type:int

Parameter:

TypeParameterName
struct smack_known *obj_known
unsigned intmode
struct smk_audit_info *a
274  tsp = smack_cred(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.())
276  Return smk_tskacc - determine if a task has a specific access to an object*@tsp: a pointer to the subject's task*@obj_known: a pointer to the object's label entry*@mode: the access requested, in "MAY" format*@a : common audit data* This function checks the
Caller
NameDescribe
smack_inode_linksmack_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
smack_inode_unlinksmack_inode_unlink - Smack check on inode deletion*@dir: containing directory object*@dentry: file to unlink* Returns 0 if current can write the containing directory* and the object, error code otherwise
smack_inode_rmdirsmack_inode_rmdir - Smack check on directory deletion*@dir: containing directory object*@dentry: directory to unlink* Returns 0 if current can write the containing directory* and the directory, error code otherwise
smack_inode_renamesmack_inode_rename - Smack check on rename*@old_inode: unused*@old_dentry: the old object*@new_inode: unused*@new_dentry: the new object* Read and write access is required on both the old and* new directories
smack_inode_permissionsmack_inode_permission - Smack version of permission()*@inode: the inode in question*@mask: the access requested* This is the important Smack hook.* Returns 0 if access is permitted, an error code otherwise
smack_inode_setattrsmack_inode_setattr - Smack check for setting attributes*@dentry: the object*@iattr: for the force flag* Returns 0 if access is permitted, an error code otherwise
smack_inode_getattrsmack_inode_getattr - Smack check for getting attributes*@path: path to extract the info from* Returns 0 if access is permitted, an error code otherwise
smack_inode_setxattrsmack_inode_setxattr - Smack check for setting xattrs*@dentry: the object*@name: name of the attribute*@value: value of the attribute*@size: size of the value*@flags: unused* This protects the Smack attribute explicitly
smack_inode_getxattrsmack_inode_getxattr - Smack check on getxattr*@dentry: the object*@name: unused* Returns 0 if access is permitted, an error code otherwise
smack_inode_removexattrsmack_inode_removexattr - Smack check on removexattr*@dentry: the object*@name: name of the attribute* Removing the Smack attribute requires CAP_MAC_ADMIN* Returns 0 if access is permitted, an error code otherwise
smack_file_ioctlsmack_file_ioctl - Smack check on ioctls*@file: the object*@cmd: what to do*@arg: unused* Relies heavily on the correct use of the ioctl command conventions.* Returns 0 if allowed, error code otherwise
smack_file_locksmack_file_lock - Smack check on file locking*@file: the object*@cmd: unused* Returns 0 if current has lock access, error code otherwise
smack_file_fcntlsmack_file_fcntl - Smack check on fcntl*@file: the object*@cmd: what action to check*@arg: unused* Generally these operations are harmless
smack_file_receivesmack_file_receive - Smack file receive check*@file: the object* Returns 0 if current has access, error code otherwise
smk_curacc_on_tasksmk_curacc_on_task - helper to log task related access*@p: the task object*@access: the access requested*@caller: name of the calling function for audit* Return 0 if access is permitted
smack_task_killsmack_task_kill - Smack check on signal delivery*@p: the task object*@info: unused*@sig: unused*@cred: identifies the cred to use in lieu of current's* Return 0 if write access is permitted
smk_curacc_shmsmk_curacc_shm : check if current has access on shm*@isp : the object*@access : access requested* Returns 0 if current has the requested access, error code otherwise
smk_curacc_semsmk_curacc_sem : check if current has access on sem*@isp : the object*@access : access requested* Returns 0 if current has the requested access, error code otherwise
smk_curacc_msqsmk_curacc_msq : helper to check if current has access on msq*@isp : the msq*@access : access requested* return 0 if current has access, error otherwise
smack_ipc_permissionsmack_ipc_permission - Smack access for ipc_permission()*@ipp: the object permissions*@flag: access requested* Returns 0 if current has read and write access, error code otherwise
smack_sb_statfssmack_sb_statfs - Smack check on statfs*@dentry: identifies the file system in question* Returns 0 if current can read the floor of the filesystem,* and error code otherwise