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     VOP_SETACL — set the access control list for a vnode


     #include <sys/param.h>
     #include <sys/vnode.h>
     #include <sys/acl.h>

     VOP_SETACL(struct vnode *vp, acl_type_t type, struct acl *aclp, struct ucred *cred,
         struct thread *td);


     This vnode call may be used to set the access control list (ACL) for a file or directory.

     Its arguments are:

     vp    The vnode of the file or directory.

     type  The type of ACL to set.

     aclp  A pointer to an ACL structure from which to retrieve the ACL data.

     cred  The user credentials to use in authorizing the request.

     td    The thread setting the ACL.

     The aclp pointer may be NULL to indicate that the specified ACL should be deleted.

     The cred pointer may be NULL to indicate that access control checks are not to be performed,
     if possible.  This cred setting might be used to allow the kernel to authorize ACL changes
     that the active process might not be permitted to make.

     The vnode ACL interface defines the syntax, and not semantics, of file and directory ACL
     interfaces.  More information about ACL management in kernel may be found in acl(9).


     The vnode will be locked on entry and should remain locked on return.


     If the ACL is successfully set, then zero is returned.  Otherwise, an appropriate error code
     is returned.


     [EINVAL]           The ACL type passed is invalid for this vnode, or the ACL data is

     [EACCES]           The caller does not have the appropriate privilege.

     [ENOMEM]           Sufficient memory is not available to fulfill the request.

     [EOPNOTSUPP]       The file system does not support VOP_SETACL().

     [ENOSPC]           The file system is out of space.

     [EROFS]            The file system is read-only.


     acl(9), vnode(9), VOP_ACLCHECK(9), VOP_GETACL(9)


     This manual page was written by Robert Watson.