smb_vop_priv_check
if (smb_vop_priv_check(cred, PRIV_FILE_DAC_SEARCH, B_FALSE, dvp))
if (smb_vop_priv_check(cr, PRIV_FILE_DAC_READ, B_TRUE, use_vp))
if (smb_vop_priv_check(cr, PRIV_FILE_DAC_SEARCH, B_FALSE, dvp))
boolean_t smb_vop_priv_check(cred_t *, int, boolean_t, vnode_t *);