xattr
XATTR_CREATE
Used as flags value, the target attribute will be created, giving an error if it already exists.
XATTR_REPLACE
Used as flags value, the target attribute will be replaced, giving an error if it doesn't exist.
NS_SECURITY
The security name space, used by kernel security modules to store (for example) capabilities information.
NS_SYSTEM
The system name space, used by the kernel to store (for example) ACLs.
NS_TRUSTED
The trusted name space, visible and accessibly only to trusted processes, used to implement mechanisms in user space.
NS_USER
The user name space; this is the name space accessible to non-privileged processes.
list
get
get_all
set
remove
getxattr
setxattr
listxattr
removexattr