mirror of
https://github.com/fwbuilder/fwbuilder
synced 2026-03-24 04:07:55 +01:00
a27cccaba5
script (Linux/iptables) used to use "command -v" to check if command line tools it needs are present on the system. This was used to find iptables, lsmod, modprobe, ifconfig, vconfig, logger and others. Some embedded Linux distributions, notably TomatoUSB, come without support for "command". Switching to "which" that is more ubuquitous and should be available pretty much everywhere.
113 lines
2.6 KiB
Bash
113 lines
2.6 KiB
Bash
## -*- mode: shell-script; -*-
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log() {
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echo "$1"
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which "$LOGGER" >/dev/null 2>&1 && $LOGGER -p info "$1"
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}
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getInterfaceVarName() {
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echo $1 | sed 's/\./_/'
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}
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##
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## getaddr6() reimplementation idea courtesy Juergen Kammer
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## <j.kammer@eurodata.de> See ticket #651
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##
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## Can not use awk substr() function as originally suggested by
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## Juergen because of the difference in behavior between GNU awk and
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## mawk (a bug?). GNU awk substr() returns +1 character while mawk
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## returns n characters. Tested with GNU awk v3.1.5 (CentOS 5.2) and
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## mawk v1.3.3 (Ubuntu Jaunty)
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##
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## This sed command has been tested with GNU sed v4.1.5 and busybox v1.00
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##
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## getaddr has been reimplemented to return list of all ipv4 addresses
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## of the interface. This is different from its behavior in fwbuilder
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## v2 and v3 where it returned only the first address.
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##
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getaddr_internal() {
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dev=$1
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name=$2
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af=$3
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L=$($IP $af addr show dev $dev | sed -n '/inet/{s!.*inet6* !!;s!/.*!!p}' | sed 's/peer.*//')
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test -z "$L" && {
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eval "$name=''"
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return
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}
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eval "${name}_list=\"$L\""
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}
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getnet_internal() {
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dev=$1
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name=$2
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af=$3
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L=$($IP route list proto kernel | grep $dev | grep -v default | sed 's! .*$!!')
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test -z "$L" && {
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eval "$name=''"
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return
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}
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eval "${name}_list=\"$L\""
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}
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##
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## This function reads all ipv4 addresses of interface (arg 1) and
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## assignes the list to the variable which name is given as arg 2.
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##
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getaddr() {
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getaddr_internal $1 $2 "-4"
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}
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##
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## This function reads all ipv6 addresses of interface (arg 1) and
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## assignes the list to the variable which name is given as arg 2.
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##
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getaddr6() {
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getaddr_internal $1 $2 "-6"
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}
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##
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## This function reads all ipv4 addresses of interface (arg 1) and
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## assignes list of addresses of attached networks with their netmasks
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## to the variable which name is given as arg 2.
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##
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getnet() {
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getnet_internal $1 $2 "-4"
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}
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##
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## This function reads all ipv6 addresses of interface (arg 1) and
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## assignes list of addresses of attached networks with their netmasks
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## to the variable which name is given as arg 2.
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##
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getnet6() {
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getnet_internal $1 $2 "-6"
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}
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# function getinterfaces is used to process wildcard interfaces
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getinterfaces() {
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NAME=$1
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$IP link show | grep ": $NAME" | while read L; do
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OIFS=$IFS
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IFS=" :"
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set $L
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IFS=$OIFS
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echo $2
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done
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}
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diff_intf() {
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func=$1
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list1=$2
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list2=$3
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cmd=$4
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for intf in $list1
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do
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echo $list2 | grep -q $intf || {
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# $vlan is absent in list 2
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$func $intf $cmd
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}
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done
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}
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