Remove python-netaddr requirement

Remove python-netaddr as a DevStack (stack.sh) requirement,
this does not change any individual project requirements.

Specifically it replaces address_in_net() and adds cidr2netmask()
and maskip() functions.

Change-Id: Ic604437fde2e057faced40a310ab282f3eb27726
This commit is contained in:
Dean Troyer 2013-07-24 12:24:43 -05:00
parent 89b58846b5
commit d4f69b21f5
2 changed files with 148 additions and 7 deletions

View File

@ -18,15 +18,38 @@ XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Exit 0 if address is in network or 1 if address is not in
# network or netaddr library is not installed.
# Convert CIDR notation to a IPv4 netmask
# cidr2netmask cidr-bits
function cidr2netmask() {
local maskpat="255 255 255 255"
local maskdgt="254 252 248 240 224 192 128"
set -- ${maskpat:0:$(( ($1 / 8) * 4 ))}${maskdgt:$(( (7 - ($1 % 8)) * 4 )):3}
echo ${1-0}.${2-0}.${3-0}.${4-0}
}
# Return the network portion of the given IP address using netmask
# netmask is in the traditional dotted-quad format
# maskip ip-address netmask
function maskip() {
local ip=$1
local mask=$2
local l="${ip%.*}"; local r="${ip#*.}"; local n="${mask%.*}"; local m="${mask#*.}"
local subnet=$((${ip%%.*}&${mask%%.*})).$((${r%%.*}&${m%%.*})).$((${l##*.}&${n##*.})).$((${ip##*.}&${mask##*.}))
echo $subnet
}
# Exit 0 if address is in network or 1 if address is not in network
# ip-range is in CIDR notation: 1.2.3.4/20
# address_in_net ip-address ip-range
function address_in_net() {
python -c "
import netaddr
import sys
sys.exit(netaddr.IPAddress('$1') not in netaddr.IPNetwork('$2'))
"
local ip=$1
local range=$2
local masklen=${range#*/}
local network=$(maskip ${range%/*} $(cidr2netmask $masklen))
local subnet=$(maskip $ip $(cidr2netmask $masklen))
[[ $network == $subnet ]]
}

118
tests/test_ip.sh Executable file
View File

@ -0,0 +1,118 @@
#!/usr/bin/env bash
# Tests for DevStack functions
# address_in_net()
TOP=$(cd $(dirname "$0")/.. && pwd)
# Import common functions
source $TOP/functions
# Import configuration
source $TOP/openrc
echo "Testing IP addr functions"
if [[ $(cidr2netmask 4) == 240.0.0.0 ]]; then
echo "cidr2netmask(): /4...OK"
else
echo "cidr2netmask(): /4...failed"
fi
if [[ $(cidr2netmask 8) == 255.0.0.0 ]]; then
echo "cidr2netmask(): /8...OK"
else
echo "cidr2netmask(): /8...failed"
fi
if [[ $(cidr2netmask 12) == 255.240.0.0 ]]; then
echo "cidr2netmask(): /12...OK"
else
echo "cidr2netmask(): /12...failed"
fi
if [[ $(cidr2netmask 16) == 255.255.0.0 ]]; then
echo "cidr2netmask(): /16...OK"
else
echo "cidr2netmask(): /16...failed"
fi
if [[ $(cidr2netmask 20) == 255.255.240.0 ]]; then
echo "cidr2netmask(): /20...OK"
else
echo "cidr2netmask(): /20...failed"
fi
if [[ $(cidr2netmask 24) == 255.255.255.0 ]]; then
echo "cidr2netmask(): /24...OK"
else
echo "cidr2netmask(): /24...failed"
fi
if [[ $(cidr2netmask 28) == 255.255.255.240 ]]; then
echo "cidr2netmask(): /28...OK"
else
echo "cidr2netmask(): /28...failed"
fi
if [[ $(cidr2netmask 30) == 255.255.255.252 ]]; then
echo "cidr2netmask(): /30...OK"
else
echo "cidr2netmask(): /30...failed"
fi
if [[ $(cidr2netmask 32) == 255.255.255.255 ]]; then
echo "cidr2netmask(): /32...OK"
else
echo "cidr2netmask(): /32...failed"
fi
if [[ $(maskip 169.254.169.254 240.0.0.0) == 160.0.0.0 ]]; then
echo "maskip(): /4...OK"
else
echo "maskip(): /4...failed"
fi
if [[ $(maskip 169.254.169.254 255.0.0.0) == 169.0.0.0 ]]; then
echo "maskip(): /8...OK"
else
echo "maskip(): /8...failed"
fi
if [[ $(maskip 169.254.169.254 255.240.0.0) == 169.240.0.0 ]]; then
echo "maskip(): /12...OK"
else
echo "maskip(): /12...failed"
fi
if [[ $(maskip 169.254.169.254 255.255.0.0) == 169.254.0.0 ]]; then
echo "maskip(): /16...OK"
else
echo "maskip(): /16...failed"
fi
if [[ $(maskip 169.254.169.254 255.255.240.0) == 169.254.160.0 ]]; then
echo "maskip(): /20...OK"
else
echo "maskip(): /20...failed"
fi
if [[ $(maskip 169.254.169.254 255.255.255.0) == 169.254.169.0 ]]; then
echo "maskip(): /24...OK"
else
echo "maskip(): /24...failed"
fi
if [[ $(maskip 169.254.169.254 255.255.255.240) == 169.254.169.240 ]]; then
echo "maskip(): /28...OK"
else
echo "maskip(): /28...failed"
fi
if [[ $(maskip 169.254.169.254 255.255.255.255) == 169.254.169.254 ]]; then
echo "maskip(): /32...OK"
else
echo "maskip(): /32...failed"
fi
for mask in 8 12 16 20 24 26 28; do
echo -n "address_in_net(): in /$mask..."
if address_in_net 10.10.10.1 10.10.10.0/$mask; then
echo "OK"
else
echo "address_in_net() failed on /$mask"
fi
echo -n "address_in_net(): not in /$mask..."
if ! address_in_net 10.10.10.1 11.11.11.0/$mask; then
echo "OK"
else
echo "address_in_net() failed on /$mask"
fi
done