[DOCUMENTATION PATCH] Missing net sysctls, some fixed, rest flagged

[bert hubert <ahu@xxxxxxx>]

Dave, Lists, 

I ran the following (crappy) script:

for b in $(for a in $(find | grep -v eth0 | grep -v binfmt)
                do 
                        basename $a
                done | sort -u); 
                do 
                        if rgrep -q $b ~/download/linux-2.6.6/Documentation/ 
                        then
                                touch /tmp/script
                        else
                                echo $b missing
                        fi
                done

In /proc/sys/ and found a host of undocumented sysctls. This patch documents
a number of them, and at least mentions the rest as 'TODO'. Please verify my
code-inspired documentation before applying!

--- linux-2.6.6/Documentation/networking/ip-sysctl.txt.ahu      2004-06-09 
18:53:29.000000000 +0200
+++ linux-2.6.6/Documentation/networking/ip-sysctl.txt  2004-06-09 
19:46:15.000000000 +0200
@@ -17,6 +17,16 @@
        Disable Path MTU Discovery.
        default FALSE
 
+min_pmtu - INTEGER
+       default 562 - minimum discovered Path MTU
+
+mtu_expires - INTEGER
+       FIXME: unknown
+
+min_adv_mss - INTEGER
+       The advertised MSS depends on the first hop route MTU, but will
+       never be lower than this setting
+
 IP Fragmentation:
 
 ipfrag_high_thresh - INTEGER
@@ -340,6 +350,17 @@
        more rapidly.
        Default: 1
 
+
+tcp_frto - BOOLEAN
+       Enables F-RTO, an enhanced recovery algorithm for TCP retransmission
+       timeouts
+
+somaxconn - INTEGER
+       Limit of TCP listen backlog, known in userspace as SOMAXCONN.
+       Defaults to 128
+
+IP Variables:
+
 ip_local_port_range - 2 INTEGERS
        Defines the local port range that is used by TCP and UDP to
        choose the local port. The first number is the first, the 
@@ -581,6 +602,19 @@
        The max value from conf/{all,interface}/arp_ignore is used
        when ARP request is received on the {interface}
 
+app_solicit - INTEGER
+       The maximum number of probes to send to the user space ARP daemon
+       via netlink before dropping back to multicast probes (see
+       mcast_solicit).  Defaults to 0.
+
+disable_policy - BOOLEAN
+       Disable IPSEC policy (SPD) for this interface
+
+disable_xfrm - BOOLEAN
+       Disable IPSEC encryption on this interface, whatever the policy
+
+
+
 tag - INTEGER
        Allows you to write a number, which can be used as required.
        Default value is 0.
@@ -799,4 +833,25 @@
        Default: 1
 
 
+UNDOCUMENTED:
+
+dev_weight FIXME
+discovery_slots FIXME
+discovery_timeout FIXME
+fast_poll_increase FIXME
+ip6_queue_maxlen FIXME
+lap_keepalive_time FIXME
+lo_cong FIXME
+max_baud_rate FIXME
+max_dgram_qlen FIXME
+max_noreply_time FIXME
+max_tx_data_size FIXME
+max_tx_window FIXME
+min_tx_turn_time FIXME
+mod_cong FIXME
+no_cong FIXME
+no_cong_thresh FIXME
+slot_timeout FIXME
+warn_noreply_time FIXME
+
 $Id: ip-sysctl.txt,v 1.20 2001/12/13 09:00:18 davem Exp $
--- linux-2.6.6/Documentation/filesystems/proc.txt.ahu  2004-06-09 
19:31:17.000000000 +0200
+++ linux-2.6.6/Documentation/filesystems/proc.txt      2004-06-09 
19:32:09.000000000 +0200
@@ -1628,7 +1628,8 @@
 
 Writing to this file results in a flush of the routing cache.
 
-gc_elastic, gc_interval, gc_min_interval, gc_tresh, gc_timeout
+gc_elasticity, gc_interval, gc_min_interval, gc_tresh, gc_timeout,
+gc_thresh, gc_thresh1, gc_thresh2, gc_thresh3
 --------------------------------------------------------------
 
 Values to  control  the  frequency  and  behavior  of  the  garbage collection


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