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[204.195.33.123]) by smtp.gmail.com with ESMTPSA id g26sm565073pgb.45.2021.09.01.13.47.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Sep 2021 13:47:05 -0700 (PDT) From: Stephen Hemminger X-Google-Original-From: Stephen Hemminger To: netdev@vger.kernel.org Cc: Stephen Hemminger Subject: [PATCH iproute2-next 2/4] ip: remove ifcfg script Date: Wed, 1 Sep 2021 13:46:59 -0700 Message-Id: <20210901204701.19646-3-sthemmin@microsoft.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210901204701.19646-1-sthemmin@microsoft.com> References: <20210901204701.19646-1-sthemmin@microsoft.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: dsahern@gmail.com From: Stephen Hemminger This script was from olden days of ifcfg. I don't see any distribution using it and it is time to put it out to pasture. Signed-off-by: Stephen Hemminger --- ip/Makefile | 2 +- ip/ifcfg | 150 ----------------------------------------------- man/man8/ifcfg.8 | 48 --------------- 3 files changed, 1 insertion(+), 199 deletions(-) delete mode 100755 ip/ifcfg delete mode 100644 man/man8/ifcfg.8 diff --git a/ip/Makefile b/ip/Makefile index a3b4249e7e06..e27dfa097877 100644 --- a/ip/Makefile +++ b/ip/Makefile @@ -18,7 +18,7 @@ RTMONOBJ=rtmon.o include ../config.mk ALLOBJ=$(IPOBJ) $(RTMONOBJ) -SCRIPTS=ifcfg routel routef +SCRIPTS=routel routef TARGETS=ip rtmon all: $(TARGETS) $(SCRIPTS) diff --git a/ip/ifcfg b/ip/ifcfg deleted file mode 100755 index 5b34decd4480..000000000000 --- a/ip/ifcfg +++ /dev/null @@ -1,150 +0,0 @@ -#! /bin/sh -# SPDX-License-Identifier: GPL-2.0 - -CheckForwarding () { - local sbase fwd - sbase=/proc/sys/net/ipv4/conf - fwd=0 - if [ -d $sbase ]; then - for dir in $sbase/*/forwarding; do - fwd=$(( fwd + $(cat "$dir") )) - done - else - fwd=2 - fi - return $fwd -} - -RestartRDISC () { - killall -HUP rdisc || rdisc -fs -} - -ABCMaskLen () { - local class; - - class=${1%%.*} - if [ "$1" = "" -o $class -eq 0 -o $class -ge 224 ]; then return 0 - elif [ $class -ge 224 ]; then return 0 - elif [ $class -ge 192 ]; then return 24 - elif [ $class -ge 128 ]; then return 16 - else return 8; fi -} - -label="label $1" -ldev="$1" -dev=${1%:*} -if [ "$dev" = "" -o "$1" = "help" ]; then - echo "Usage: ifcfg DEV [[add|del [ADDR[/LEN]] [PEER] | stop]" 1>&2 - echo " add - add new address" 1>&2 - echo " del - delete address" 1>&2 - echo " stop - completely disable IP" 1>&2 - exit 1 -fi -shift - -CheckForwarding -fwd=$? -if [ $fwd -ne 0 ]; then - echo "Forwarding is ON or its state is unknown ($fwd). OK, No RDISC." 1>&2 -fi - - -deleting=0 -case "$1" in -add) shift ;; -stop) - if [ "$ldev" != "$dev" ]; then - echo "Cannot stop alias $ldev" 1>&2 - exit 1; - fi - ip -4 addr flush dev $dev $label || exit 1 - if [ $fwd -eq 0 ]; then RestartRDISC; fi - exit 0 ;; -del*) - deleting=1; shift ;; -*) -esac - -ipaddr= -pfxlen= -if [ "$1" != "" ]; then - ipaddr=${1%/*} - if [ "$1" != "$ipaddr" ]; then - pfxlen=${1#*/} - fi - if [ "$ipaddr" = "" ]; then - echo "$1 is bad IP address." 1>&2 - exit 1 - fi -fi -shift - -peer=$1 -if [ "$peer" != "" ]; then - if [ "$pfxlen" != "" -a "$pfxlen" != "32" ]; then - echo "Peer address with non-trivial netmask." 1>&2 - exit 1 - fi - pfx="$ipaddr peer $peer" -else - if [ "$ipaddr" = "" ]; then - echo "Missing IP address argument." 1>&2 - exit 1 - fi - if [ "$pfxlen" = "" ]; then - ABCMaskLen $ipaddr - pfxlen=$? - fi - pfx="$ipaddr/$pfxlen" -fi - -if [ "$ldev" = "$dev" -a "$ipaddr" != "" ]; then - label= -fi - -if [ $deleting -ne 0 ]; then - ip addr del $pfx dev $dev $label || exit 1 - if [ $fwd -eq 0 ]; then RestartRDISC; fi - exit 0 -fi - - -if ! ip link set up dev $dev ; then - echo "Error: cannot enable interface $dev." 1>&2 - exit 1 -fi -if [ "$ipaddr" = "" ]; then exit 0; fi - -if ! arping -q -c 2 -w 3 -D -I $dev $ipaddr ; then - echo "Error: some host already uses address $ipaddr on $dev." 1>&2 - exit 1 -fi - -if ! ip address add $pfx brd + dev $dev $label; then - echo "Error: failed to add $pfx on $dev." 1>&2 - exit 1 -fi - -arping -q -A -c 1 -I $dev $ipaddr -noarp=$? -( sleep 2 ; - arping -q -U -c 1 -I $dev $ipaddr ) >/dev/null 2>&1 /dev/null 2>&1 -ip route add unreachable 255.255.255.255 >/dev/null 2>&1 -if [ "`ip link ls $dev | grep -c MULTICAST`" -ge 1 ]; then - ip route add 224.0.0.0/4 dev $dev scope global >/dev/null 2>&1 -fi - -if [ $fwd -eq 0 ]; then - if [ $noarp -eq 0 ]; then - ip ro append default dev $dev metric 30000 scope global - elif [ "$peer" != "" ]; then - if ping -q -c 2 -w 4 $peer ; then - ip ro append default via $peer dev $dev metric 30001 - fi - fi - RestartRDISC -fi - -exit 0 diff --git a/man/man8/ifcfg.8 b/man/man8/ifcfg.8 deleted file mode 100644 index 1a3786c1b0d9..000000000000 --- a/man/man8/ifcfg.8 +++ /dev/null @@ -1,48 +0,0 @@ -.TH IFCFG 8 "September 24 2009" "iproute2" "Linux" -.SH NAME -ifcfg \- simplistic script which replaces ifconfig IP management -.SH SYNOPSIS -.ad l -.in +8 -.ti -8 -.B ifcfg -.RI "[ " DEVICE " ] [ " command " ] " ADDRESS " [ " PEER " ] " -.sp - -.SH DESCRIPTION -This manual page documents briefly the -.B ifcfg -command. -.PP -This is a simplistic script replacing one option of -.B ifconfig -, namely, IP address management. It not only adds -addresses, but also carries out Duplicate Address Detection RFC-DHCP, -sends unsolicited ARP to update the caches of other hosts sharing -the interface, adds some control routes and restarts Router Discovery -when it is necessary. - -.SH IFCONFIG - COMMAND SYNTAX - -.SS -.TP -.B DEVICE -- it may have alias, suffix, separated by colon. - -.TP -.B command -- add, delete or stop. - -.TP -.B ADDRESS -- optionally followed by prefix length. - -.TP -.B peer -- optional peer address for pointpoint interfaces. - -.SH NOTES -This script is not suitable for use with IPv6. - -.SH SEE ALSO -.RB "IP Command reference " ip-cref.ps