filter_protocol_internal
static void filter_protocol_internal(struct filter_session *, uint64_t *, uint64_t, enum filter_phase, const char *);
filter_protocol_internal(fs, token, reqid, phase, param);
filter_protocol_internal(fs, &token, reqid, phase, param);
filter_protocol_internal(fs, &token, reqid, phase, fs->lastparam);