This document describes the interfaces /proc/net/tcp and /proc/net/tcp6.
+Note that these interfaces are deprecated in favor of tcp_diag.
These /proc interfaces provide information about currently active TCP
-connections, and are implemented by tcp_get_info() in net/ipv4/tcp_ipv4.c and
-tcp6_get_info() in net/ipv6/tcp_ipv6.c, respectively.
+connections, and are implemented by tcp4_seq_show() in net/ipv4/tcp_ipv4.c
+and tcp6_seq_show() in net/ipv6/tcp_ipv6.c, respectively.
It will first list all listening TCP sockets, and next list all established
TCP connections. A typical entry of /proc/net/tcp would look like this (split
1000 0 54165785 4 cd1e6040 25 4 27 3 -1
| | | | | | | | | |--> slow start size threshold,
- | | | | | | | | | or -1 if the treshold
+ | | | | | | | | | or -1 if the threshold
| | | | | | | | | is >= 0xFFFF
| | | | | | | | |----> sending congestion window
| | | | | | | |-------> (ack.quick<<1)|ack.pingpong