Historically the parsing error used to apply only to too large headers,
so this is what has been reported in traces. But nowadays we can also
reject invalid characters, and when this happens the trace is a bit
misleading, so let's mention "or invalid".
if (outlen < 0 || htx_free_space(htx) < global.tune.maxrewrite) {
/* too large headers? this is a stream error only */
- TRACE_STATE("message headers too large", H2_EV_RX_FRAME|H2_EV_RX_HDR|H2_EV_H2S_ERR|H2_EV_PROTO_ERR, h2c->conn);
+ TRACE_STATE("message headers too large or invalid", H2_EV_RX_FRAME|H2_EV_RX_HDR|H2_EV_H2S_ERR|H2_EV_PROTO_ERR, h2c->conn);
htx->flags |= HTX_FL_PARSING_ERROR;
goto fail;
}