match_id
match_id(se->se_meshid, ms->ms_id, ms->ms_idlen))
if (match_id(ie, ssids[i].ssid, ssids[i].len))
conf->match_id = !!conf->match_id;
(priv->conf.match_id || tid != 0)) {
u_char match_id; /* tunnel id must match 'tunnel_id' */