NAME¶

tapset::tcp - systemtap tcp probe points

DESCRIPTION¶

This family of probe points is used to probe TCP layer activities. It contains the following probe points:

tcp.sendmsg

 

Fires whenever sending a tcp message

 

Arguments:

 

sock
network socket

 

size
number of bytes to send

 

tcp.sendmsg.return

 

Fires whenever sending message is done

 

Arguments:

 

size
number of bytes sent

 

tcp.recvmsg

 

Fires whenever a message is received

 

Arguments:

 

sock
network socket

 

size
number of bytes to be received

 

tcp.recvmsg.return

 

Fires whenever message receiving is done

 

Arguments:

 

size
number of bytes received

 

tcp.disconnect

 

Fires whenever tcp is disconnected

 

Arguments:

 

sock
network socket

 

flags
TCP flags (e.g. FIN, etc)

 

tcp.disconnect.return

 

Fires when returning from tcp.disconnect

 

Arguments:

 

ret
error code (0: no error)

 

SEE ALSO¶

stap(1), stapprobes(3stap)