Crate aprs_is 

APRS-IS (APRS Internet Service) TCP client.

Connects to APRS-IS core/tier2 servers, authenticates with callsign+passcode, subscribes to filters, receives APRS packets as TNC2-format text lines, and gates RF-heard traffic with Q-construct rules.

Scope

• AprsIsClient async TCP client with keepalive and bounded reader.
• AprsIsConfig login configuration, aprs_is_passcode hash.
• AprsIsFilter filter-command builder.
• QConstruct Q-construct classification + IGate path rewriting.
• parse_is_line TNC2 monitor-format parser.
• format_is_packet outbound line formatter.

References

• APRS-IS: http://www.aprs-is.net/
• Q-construct: http://www.aprs-is.net/q.aspx

Structs

AprsIsClient

Async TCP client for APRS-IS.

AprsIsConfig

APRS-IS (Internet Service) client configuration.

AprsIsLine

A parsed APRS-IS packet line.

Enums

AprsIsError

Errors that can occur during APRS-IS operations.

AprsIsEvent

An event from the APRS-IS server.

AprsIsFilter

Structured APRS-IS filter expression.

Passcode

APRS-IS authentication passcode.

QConstruct

APRS-IS Q-construct tag (path identifier that records how a packet entered the APRS-IS network).

Constants

CONNECT_TIMEOUT

Default connect timeout for the initial TCP handshake + login.

KEEPALIVE_INTERVAL

Default APRS-IS keepalive interval.

Functions

aprs_is_passcode

Compute the APRS-IS passcode from a callsign.

build_login_string

Build the APRS-IS login string.

format_is_packet

Format an APRS packet for transmission to APRS-IS.

format_is_packet_with_qconstruct

Format an APRS-IS packet with an explicit Q-construct.

parse_is_line

Parse an APRS-IS server line.