docs: networking: convert nf_conntrack-sysctl.txt to ReST

- add SPDX header;
- add a document title;
- mark lists as such;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-04-30 18:04:07 +02:00 committed by David S. Miller
parent c4d5dff60f
commit 13df433f8c
2 changed files with 30 additions and 22 deletions

View File

@ -85,6 +85,7 @@ Contents:
netdevices
netfilter-sysctl
netif-msg
nf_conntrack-sysctl
.. only:: subproject and html

View File

@ -1,8 +1,15 @@
.. SPDX-License-Identifier: GPL-2.0
===================================
Netfilter Conntrack Sysfs variables
===================================
/proc/sys/net/netfilter/nf_conntrack_* Variables:
=================================================
nf_conntrack_acct - BOOLEAN
0 - disabled (default)
not 0 - enabled
- 0 - disabled (default)
- not 0 - enabled
Enable connection tracking flow accounting. 64-bit byte and packet
counters per flow are added.
@ -16,8 +23,8 @@ nf_conntrack_buckets - INTEGER
This sysctl is only writeable in the initial net namespace.
nf_conntrack_checksum - BOOLEAN
0 - disabled
not 0 - enabled (default)
- 0 - disabled
- not 0 - enabled (default)
Verify checksum of incoming packets. Packets with bad checksums are
in INVALID state. If this is enabled, such packets will not be
@ -27,8 +34,8 @@ nf_conntrack_count - INTEGER (read-only)
Number of currently allocated flow entries.
nf_conntrack_events - BOOLEAN
0 - disabled
not 0 - enabled (default)
- 0 - disabled
- not 0 - enabled (default)
If this option is enabled, the connection tracking code will
provide userspace with connection tracking events via ctnetlink.
@ -62,8 +69,8 @@ nf_conntrack_generic_timeout - INTEGER (seconds)
protocols.
nf_conntrack_helper - BOOLEAN
0 - disabled (default)
not 0 - enabled
- 0 - disabled (default)
- not 0 - enabled
Enable automatic conntrack helper assignment.
If disabled it is required to set up iptables rules to assign
@ -81,14 +88,14 @@ nf_conntrack_icmpv6_timeout - INTEGER (seconds)
Default for ICMP6 timeout.
nf_conntrack_log_invalid - INTEGER
0 - disable (default)
1 - log ICMP packets
6 - log TCP packets
17 - log UDP packets
33 - log DCCP packets
41 - log ICMPv6 packets
136 - log UDPLITE packets
255 - log packets of any protocol
- 0 - disable (default)
- 1 - log ICMP packets
- 6 - log TCP packets
- 17 - log UDP packets
- 33 - log DCCP packets
- 41 - log ICMPv6 packets
- 136 - log UDPLITE packets
- 255 - log packets of any protocol
Log invalid packets of a type specified by value.
@ -97,15 +104,15 @@ nf_conntrack_max - INTEGER
nf_conntrack_buckets value * 4.
nf_conntrack_tcp_be_liberal - BOOLEAN
0 - disabled (default)
not 0 - enabled
- 0 - disabled (default)
- not 0 - enabled
Be conservative in what you do, be liberal in what you accept from others.
If it's non-zero, we mark only out of window RST segments as INVALID.
nf_conntrack_tcp_loose - BOOLEAN
0 - disabled
not 0 - enabled (default)
- 0 - disabled
- not 0 - enabled (default)
If it is set to zero, we disable picking up already established
connections.
@ -148,8 +155,8 @@ nf_conntrack_tcp_timeout_unacknowledged - INTEGER (seconds)
default 300
nf_conntrack_timestamp - BOOLEAN
0 - disabled (default)
not 0 - enabled
- 0 - disabled (default)
- not 0 - enabled
Enable connection tracking flow timestamping.