#!/bin/sh
#
# $Id: prndd,v 1.4 1999/03/12 00:39:05 vogelke Exp $
#
# NAME:
#    prndd
#
# SYNOPSIS:
#    prndd
#
# DESCRIPTION:
#    Prints TCP/IP settings using ndd.  To find the parameters set
#    for each device, do something like this:
#
#     for name in arp hme icmp ip rawip tcp udp
#     do
#          echo "/dev/$name:"
#          list=`ndd /dev/$name '?' | awk '{print $1}' |
#                    grep -v '^\?$' | sort`
#     
#          for each in $list
#          do
#               result=`ndd /dev/$name $each`
#               echo "   $each: $result"
#          done
#     
#          echo
#     done
#
#    We could do something like this in the script itself, but we
#    end up reading hash tables of open connections, etc.  I'm just
#    looking for one-line values that might aid in tuning.
#
# AUTHOR:
#    Karl Vogel <vogelke@pobox.com>
#    Sumaria Systems, Inc.

PATH=/bin:/usr/sbin
export PATH

tmp=/tmp/prndd$$
trap "rm -f $tmp; exit 0" 0 1 2 3 15

# ============================= FUNCTIONS ==================================

die () {
    echo "$*" >& 2
    exit 1
}

version () {
    local_sedscr='s/RCSfile: //
    s/,v . .Revision: /  v/
    s/\$//g'

    local_revno='$RCSfile: prndd,v $ $Revision: 1.4 $'
    echo "$local_revno" | sed -e "$local_sedscr"
}

# ============================= MAIN PROGRAM ===============================

id | grep 'uid=0(root)' > /dev/null || die "Sorry, must be run by root"

#
# ndd commands.
#

list="
/dev/arp arp_cleanup_interval
/dev/arp arp_debug
/dev/hme 100fdx_cap
/dev/hme 100hdx_cap
/dev/hme 10fdx_cap
/dev/hme 10hdx_cap
/dev/hme adv_100fdx_cap
/dev/hme adv_100hdx_cap
/dev/hme adv_10fdx_cap
/dev/hme adv_10hdx_cap
/dev/hme adv_autoneg_cap
/dev/hme autoneg_cap
/dev/hme instance
/dev/hme ipg0
/dev/hme ipg1
/dev/hme ipg2
/dev/hme lance_mode
/dev/hme link_mode
/dev/hme link_speed
/dev/hme link_status
/dev/hme lp_100fdx_cap
/dev/hme lp_100hdx_cap
/dev/hme lp_10fdx_cap
/dev/hme lp_10hdx_cap
/dev/hme lp_autoneg_cap
/dev/hme pace_size
/dev/hme transceiver_inuse
/dev/hme use_int_xcvr
/dev/icmp icmp_bsd_compat
/dev/icmp icmp_def_ttl
/dev/icmp icmp_max_buf
/dev/icmp icmp_recv_hiwat
/dev/icmp icmp_wroff_extra
/dev/icmp icmp_xmit_hiwat
/dev/icmp icmp_xmit_lowat
/dev/ip ip_addrs_per_if
/dev/ip ip_broadcast_ttl
/dev/ip ip_debug
/dev/ip ip_def_ttl
/dev/ip ip_forward_src_routed
/dev/ip ip_forwarding
/dev/ip ip_icmp_err_interval
/dev/ip ip_icmp_return_data_bytes
/dev/ip ip_ignore_delete_time
/dev/ip ip_ignore_redirect
/dev/ip ip_ire_cleanup_interval
/dev/ip ip_ire_flush_interval
/dev/ip ip_ire_pathmtu_interval
/dev/ip ip_ire_redirect_interval
/dev/ip ip_mrtdebug
/dev/ip ip_output_queue
/dev/ip ip_path_mtu_discovery
/dev/ip ip_reass_queue_bytes
/dev/ip ip_respond_to_echo_broadcast
/dev/ip ip_respond_to_timestamp
/dev/ip ip_rput_pullups
/dev/ip ip_send_redirects
/dev/ip ip_send_source_quench
/dev/ip ip_strict_dst_multihoming
/dev/ip ip_wroff_extra
/dev/rawip icmp_bsd_compat
/dev/rawip icmp_def_ttl
/dev/rawip icmp_max_buf
/dev/rawip icmp_recv_hiwat
/dev/rawip icmp_wroff_extra
/dev/rawip icmp_xmit_hiwat
/dev/rawip icmp_xmit_lowat
/dev/tcp tcp_close_wait_interval
/dev/tcp tcp_co_min
/dev/tcp tcp_conn_grace_period
/dev/tcp tcp_conn_req_max_q
/dev/tcp tcp_conn_req_max_q0
/dev/tcp tcp_cwnd_max
/dev/tcp tcp_debug
/dev/tcp tcp_deferred_ack_interval
/dev/tcp tcp_dupack_fast_retransmit
/dev/tcp tcp_fin_wait_2_flush_interval
/dev/tcp tcp_ignore_path_mtu
/dev/tcp tcp_ip_abort_cinterval
/dev/tcp tcp_ip_abort_interval
/dev/tcp tcp_ip_abort_linterval
/dev/tcp tcp_ip_notify_cinterval
/dev/tcp tcp_ip_notify_interval
/dev/tcp tcp_ip_ttl
/dev/tcp tcp_keepalive_interval
/dev/tcp tcp_largest_anon_port
/dev/tcp tcp_max_buf
/dev/tcp tcp_maxpsz_multiplier
/dev/tcp tcp_mss_def
/dev/tcp tcp_mss_max
/dev/tcp tcp_mss_min
/dev/tcp tcp_naglim_def
/dev/tcp tcp_old_urp_interpretation
/dev/tcp tcp_rcv_push_wait
/dev/tcp tcp_recv_hiwat
/dev/tcp tcp_recv_hiwat_minmss
/dev/tcp tcp_rexmit_interval_initial
/dev/tcp tcp_rexmit_interval_max
/dev/tcp tcp_rexmit_interval_min
/dev/tcp tcp_rtt_updates
/dev/tcp tcp_rwin_credit_pct
/dev/tcp tcp_slow_start_initial
/dev/tcp tcp_smallest_anon_port
/dev/tcp tcp_smallest_nonpriv_port
/dev/tcp tcp_snd_lowat_fraction
/dev/tcp tcp_sth_rcv_hiwat
/dev/tcp tcp_sth_rcv_lowat
/dev/tcp tcp_strong_iss
/dev/tcp tcp_wroff_xtra
/dev/tcp tcp_xmit_hiwat
/dev/tcp tcp_xmit_lowat
/dev/tcp tcp_zero_win_probesize
/dev/udp udp_def_ttl
/dev/udp udp_do_checksum
/dev/udp udp_largest_anon_port
/dev/udp udp_max_buf
/dev/udp udp_recv_hiwat
/dev/udp udp_smallest_anon_port
/dev/udp udp_smallest_nonpriv_port
/dev/udp udp_trust_optlen
/dev/udp udp_wroff_extra
/dev/udp udp_xmit_hiwat
/dev/udp udp_xmit_lowat
"

#
# Run each ndd command, store in a temp file so we can make
# multiple passes.  There's probably some neat way to do this
# in awk or perl, but I don't care.
#

version
uname -a
echo "NDD parameters as of `date`"

(
    echo "$list" |
    while read device param
    do
        case "$device" in
            "") ;;

            *)  result=`ndd $device $param`
                echo $device $param: $result
                ;;
        esac
    done
) > $tmp

#
# Format the results nicely.  Put a pagefeed before /dev/tcp.
#

for each in `cut -f1 -d' ' $tmp | sort -u`
do
    # I don't like control characters in scripts...
    case "$each" in
        "/dev/tcp") echo '=' | tr '=' '\014' ;;
        *)      ;;
    esac

    echo
    echo "$each"

    grep $each $tmp |
        cut -f2- -d' ' |
        awk '{ printf "%30s %d\n", $1, $2 }' |
        pr -2t -w82 |
        expand |
        sed -e 's/^/ /'
done

exit 0