NAME

bputa - BP-based CFDP UT-layer adapter

SYNOPSIS

bputa

DESCRIPTION

bputa is a background "daemon" task that sends and receives CFDP PDUs encapsulated in DTN bundles.

The task is spawned automatically by cfdpadmin in response to the 's' command that starts operation of the CFDP protocol; the text of the command that is used to spawn the task must be provided as a parameter to the 's' command. The UT-layer daemon is terminated by cfdpadmin in response to an 'x' (STOP) command.

EXIT STATUS

"0"

bputa terminated normally, for reasons noted in the ion.log file. If this termination was not commanded, investigate and solve the problem identified in the log file and use cfdpadmin to restart bputa.
"1"

bputa terminated abnormally, for reasons noted in the ion.log file. Investigate and solve the problem identified in the log file, then use cfdpadmin to restart bputa.

FILES

No configuration files are needed.

ENVIRONMENT

No environment variables apply.

DIAGNOSTICS

The following diagnostics may be issued to the ion.log log file:

CFDP can't attach to BP.

bpadmin has not yet initialized BP protocol operations.
CFDP can't open own endpoint.

Most likely another bputa task is already running. Use cfdpadmin to stop CFDP and restart.
CFDP can't get Bundle Protocol SAP.

Most likely a BP configuration problem. Use bpadmin to stop BP and restart.
bputa can't attach to CFDP.

cfdpadmin has not yet initialized CFDP protocol operations.
bputa can't dequeue outbound CFDP PDU; terminating.

Possible system error. Check ion.log for additional diagnostic messages.
bputa can't send PDU in bundle; terminating.

Possible system error. Check ion.log for additional diagnostic messages.
bputa can't track PDU; terminating.

Possible system error. Check ion.log for additional diagnostic messages.
bputa bundle reception failed.

Possible system error; reception thread terminates. Check ion.log for additional diagnostic messages.
bputa can't receive bundle ADU.

Possible system error; reception thread terminates. Check ion.log for additional diagnostic messages.
bputa can't handle bundle delivery.

Possible system error; reception thread terminates. Check ion.log for additional diagnostic messages.
bputa can't handle inbound PDU.

Possible system error; reception thread terminates. Check ion.log for additional diagnostic messages.

BUGS

Report bugs to <https://github.com/nasa-jpl/ION-DTN/issues>