Count a failed attempt to open a socket
tcpmib.AttemptFails
op
value to be added to the counter (default value of 1)
sk
pointer to the struct sock being acted on
The packet pointed to by skb is filtered by the function tcpmib_filter_key. If the packet passes the filter is is counted in the global AttemptFails (equivalent to SNMP's MIB TCP_MIB_ATTEMPTFAILS)