Function lomac_vnode_create_extattr

freebsd/security/mac_lomac/mac_lomac.c:2779–2807

}

static int
lomac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
    struct label *mplabel, struct vnode *dvp, struct label *dvplabel,
    struct vnode *vp, struct label *vplabel, struct componentname *cnp)
{
	struct mac_lomac *source, *dest, *dir, temp;
	size_t buflen;
	int error;

	buflen = sizeof(temp);
	bzero(&temp, buflen);

	source = SLOT(cred->cr_label);
	dest = SLOT(vplabel);
	dir = SLOT(dvplabel);
	if (dir->ml_flags & MAC_LOMAC_FLAG_AUX) {
		lomac_copy_auxsingle(dir, &temp);
		lomac_set_single(&temp, dir->ml_auxsingle.mle_type,
		    dir->ml_auxsingle.mle_grade);
	} else {
		lomac_copy_single(source, &temp);
	}

	error = vn_extattr_set(vp, IO_NODELOCKED, MAC_LOMAC_EXTATTR_NAMESPACE,
	    MAC_LOMAC_EXTATTR_NAME, buflen, (char *)&temp, curthread);
	if (error == 0)
		lomac_copy(&temp, dest);
	return (error);
}

static void
lomac_vnode_execve_transition(struct ucred *old, struct ucred *new,