Support APRS Directed Station Queries

[dranch]

Direwolf 1.4 recognizes APRS station queries but doesn't respond as the "aprs_directed_station_query" function is effectively just a placeholder and no code support exists today. I would be great to add support for the basic commands. Here is a proposal of maybe how they could be supported over time. Just my $0.02 here..

Phase 1 - have Direwolf just respond with "complete response not supported today". Just getting a response will be a big help for users trying to do diagnostics, etc.

Future proposed phases:

Query Type | Query
APRS | General — All stations query | Station’s position and status | phase 2: should be strait forward

APRSD | Directed — Query an individual station for stations heard direct | List of stations heard direct | Could be a Phase3 feature though this is a pretty valuable response

APRSH | Directed — Query if an individual station has heard a particular station | Position of heard station as an APRS Object, plus heard statistics for the last 8 hours | Maybe a phase 4 feature

APRSM | Directed — Query an individual station for outstanding unacknowledged or undelivered
messages | All outstanding messages for the querying station | Maybe a phase 4 feature

APRSO | Directed — Query an individual station for its Objects | Station’s Objects | maybe phase 3

APRSP | Directed — Query an individual station for its position | Station’s position | phase 2: should be strait forward

APRSS | Directed — Query an individual station for its status | Station's status | phase 2: should be strait forward

APRST or
PING? | Directed — Query an individual station for a trace (i.e. path by which the packet was heard) | Route trace | Could be a Phase4 feature though this is a pretty valuable response

IGATE | General — Query all Internet Gateways | IGate station capabilities | phase 2: should be strait forward

WX | General — Query all weather stations | Weather report (and the station’s position if it is not included in the Weather Report) | Maybe phase 3 Seems to be a subset of APRSO

[dranch]

It's worth adding that Direwolf currently digipeats these packets which is probably NOT what we want to have happen. This should be suppressed as part of the phase 1effort

[Tyler-2]

Yes please! I didn't even know about these features since Direwolf is kind of my golden standard for APRS, and where I learn.

[craigsned]

Bump - would be a really useful addition to Direwolf