xiangpu

I didn't notice the details related to socket in the daikon document, So I want to know if you have considered this problem when doing the Invscov work

Hi @banach-space ,thanks for your reply :) After two days of study, my thoughts are similar to yours, that is, debug info may be needed to achieve this goal. In...

According to the specification of [MQTTv3.1.1](https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/mqtt-v3.1.1.html) and [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` [MQTT-3.1.0-1] After a Network Connection is established by a Client to a Server, the first packet sent from the Client to...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` [MQTT-3.3.4-6] A PUBLISH packet sent from a Client to a Server MUST NOT contain a Subscription Identifier. ``` However, if we send such...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` [MQTT-3.4.2-1] The Client or Server sending the PUBACK packet MUST use one of the PUBACK Reason Codes. # note that Table 3‑4 define...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` [MQTT-3.6.1-1] Bits 3,2,1 and 0 of the Fixed Header in the PUBREL packet are reserved and MUST be set to 0,0,1 and 0...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` It is a Protocol Error to include Request Problem Information more than once, or to have a value other than 0 or 1....

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` It is a Protocol Error to include Authentication Data if there is no Authentication Method. ``` Replay: ``` echo 107500044d515454054069d62216001a3836444175657452417668423854684a735a7474744935793341274e45fab6001974496e5645793058343872467a735361747763776c6849787a001d575a796d784c4e55317a335a7175744936434e673748576f34307a4f42000c4b4c32484b46385933343065 | xxd -p...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` It is a Protocol Error to include the Receive Maximum value more than once or for it to have the value 0. ```...

According to the specification of [MQTTv5.0](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html): ``` It is a Protocol Error to include the Message Expiry Interval more than once. ``` Replay such packet: ``` echo 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 | xxd...