NAME

tcpbsi - TCP-based reliable link service input task for BSSP

SYNOPSIS

tcpbsi {local_hostname | @}[:local_port_nbr]

DESCRIPTION

tcpbsi is a background "daemon" task that receives TCP stream data via a TCP socket bound to local_hostname and local_port_nbr, extracts BSSP blocks from that stream, and passes them to the local BSSP engine. Host name "@" signifies that the host name returned by hostname(1) is to be used as the socket's host name. If not specified, port number defaults to 4556.

The link service input task is spawned automatically by bsspadmin in response to the 's' command that starts operation of the BSSP protocol; the text of the command that is used to spawn the task must be provided as a parameter to the 's' command. The link service input task is terminated by bsspadmin in response to an 'x' (STOP) command.

EXIT STATUS

"0"

tcpbsi 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 bsspadmin to restart tcpbsi.
"1"

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

FILES

No configuration files are needed.

ENVIRONMENT

No environment variables apply.

DIAGNOSTICS

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

tcpbsi can't initialize BSSP.

bsspadmin has not yet initialized BSSP protocol operations.
RL-BSI task is already started.

Redundant initiation of tcpbsi.
RL-BSI can't open TCP socket

Operating system error. Check errtext, correct problem, and restart tcpbsi.
RL-BSI can't initialize socket

Operating system error. Check errtext, correct problem, and restart tcpbsi.
tcpbsi can't create receiver thread

Operating system error. Check errtext, correct problem, and restart tcpbsi.

BUGS

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