Function pamoja_gateway_network_uplink 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_gateway_network_uplink(
    network: *mut PamojaGatewayNetwork,
    packet: PamojaGatewayRxpk,
    payload: *const u8,
    payload_len: usize,
    buffer: *mut u8,
    capacity: usize,
    out_event: *mut PamojaGatewayNetworkEvent,
) -> PamojaStatus

Reads a packet the gateway forwarded.

A join request is verified against every registered key, granted an address and a session, and answered with an accept written into the buffer and described by event.accept. A data frame is routed by its address, checked against the counter last seen, and decrypted into the buffer. A frame for a device this site never granted is reported rather than refused, because a gateway hears every network in range.

Arguments

• network - the network.
• packet - the metadata of what the gateway heard.
• payload - the frame as it came off the air.
• payload_len - its length.
• buffer - where to write the decrypted payload, or the accept to transmit.
• capacity - how many bytes the buffer holds.
• out_event - receives what the packet turned out to be.

Returns

PamojaStatus::Ok, PamojaStatus::InvalidArgument for a null argument, or PamojaStatus::Codec when the frame is refused, whose reason is available from pamoja_last_error_message.

Safety

network must be a live handle, payload must point at payload_len readable bytes or be null, buffer must point at capacity writable bytes or be null, and out_event must point at a writable event.