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|
#!/bin/sh
ipcheck_ipv4() {
local r1_to_255="([1-9][0-9]?|1[0-9][0-9]|2[0-4][0-9]|25[0-5])"
local r0_to_255="([0-9][0-9]?|1[0-9][0-9]|2[0-4][0-9]|25[0-5])"
local r_ipv4="^$r1_to_255\.$r0_to_255\.$r0_to_255\.$r0_to_255$"
echo "$1" | grep -q -Ee "$r_ipv4"
}
ipcheck_ipv6() {
! echo "$1" | grep -qs "[^0-9:a-fA-F]"
}
ifcheck() {
local ifname="$1"
$IP2UTIL link show dev $ifname 2>&1
}
prefixcheck() {
local prefix=$1
local prefix_length=${#prefix}
local prefix_check=$2
if [ $prefix_length -gt 3 -o $prefix_length -eq 0 ] ; then
return 1
fi
echo "$prefix" | grep -qs "[^0-9]"
if [ $? = 0 ] ; then
return 1
fi
if [ $prefix -lt 1 -o $prefix -gt $prefix_check ] ; then
return 1
fi
return 0
}
getloopbackinfo()
{
local line netinfo
ip -o -f inet route list match $OCF_RESKEY_ip table local scope host | (while read line;
do
netinfo=`echo $line | awk '{print $2}'`
case $netinfo in
*/*)
set -- $line
break
;;
esac
done
echo $line)
}
# previous versions of the IPaddr2 resource agent used to accept a netmask
# in dotted quad notation (and convert to cidr notation implicitly; possibly
# with warnings nobody ever noticed)
# We can do so here as well.
maybe_convert_dotted_quad_to_cidr()
{
# does this even look like a dotted quad notation?
case $netmask in
# invalid if it contains other than digits and dots
# invalid if it contains adjacent dots,
# or starts or ends with a dot
# or more than three dots
# or more than three digits in a row
*[!0-9.]* | *..* | *.*.*.*.* | .* | *. | *[0-9][0-9][0-9][0-9]* )
return ;;
# do we have three dots?
# component range check on <= 255 is done below
*.*.*.*) : ;;
*) return ;;
esac
local IFS=.
set -- $netmask
[ $# = 4 ] || return;
local b m=0 mask;
for b ; do
[ $b -le 255 ] || return;
m=$(( (m << 8) + b ));
done;
case $m in
# for i in `seq 32 -1 0`; do printf "%10u) netmask=$i ;;\n" $(( ((1 << i)-1) << (32 - i) )); done
4294967295) mask=32 ;;
4294967294) mask=31 ;;
4294967292) mask=30 ;;
4294967288) mask=29 ;;
4294967280) mask=28 ;;
4294967264) mask=27 ;;
4294967232) mask=26 ;;
4294967168) mask=25 ;;
4294967040) mask=24 ;;
4294966784) mask=23 ;;
4294966272) mask=22 ;;
4294965248) mask=21 ;;
4294963200) mask=20 ;;
4294959104) mask=19 ;;
4294950912) mask=18 ;;
4294934528) mask=17 ;;
4294901760) mask=16 ;;
4294836224) mask=15 ;;
4294705152) mask=14 ;;
4294443008) mask=13 ;;
4293918720) mask=12 ;;
4292870144) mask=11 ;;
4290772992) mask=10 ;;
4286578688) mask=9 ;;
4278190080) mask=8 ;;
4261412864) mask=7 ;;
4227858432) mask=6 ;;
4160749568) mask=5 ;;
4026531840) mask=4 ;;
3758096384) mask=3 ;;
3221225472) mask=2 ;;
2147483648) mask=1 ;;
0) mask=0 ;;
*) ocf_log err "Bogus netmask: $netmask" ; return ;;
esac
ocf_log warn "Please convert dotted quad netmask $netmask to CIDR notation $mask!"
netmask=$mask
}
findif_check_params()
{
local family="$1"
local match="$OCF_RESKEY_ip"
local nic="$OCF_RESKEY_nic"
# netmask NOT local, see maybe_convert_dotted_quad_to_cidr
netmask="$OCF_RESKEY_cidr_netmask"
local brdcast="$OCF_RESKEY_broadcast"
local errmsg
maybe_convert_dotted_quad_to_cidr
# Do a sanity check only on start and validate-all
# to avoid returning OCF_ERR_CONFIGURED from the monitor operation.
case $__OCF_ACTION in
start|validate-all) true;;
*) return $OCF_SUCCESS;;
esac
if [ -n "$nic" ] ; then
errmsg=`ifcheck $nic`
if [ $? -ne 0 ] ; then
ocf_log err "Invalid interface name [$nic]: $errmsg"
return $OCF_ERR_CONFIGURED
fi
fi
if [ "$family" = "inet6" ] ; then
ipcheck_ipv6 $match
if [ $? = 1 ] ; then
ocf_log err "IP address [$match] not valid."
return $OCF_ERR_CONFIGURED
fi
if [ -z "$nic" ] ; then
echo $match | grep -qis '^fe80::'
if [ $? = 0 ] ; then
ocf_log err "'nic' parameter is mandatory for a link local address [$match]."
return $OCF_ERR_CONFIGURED
fi
fi
if [ -n "$netmask" ] ; then
prefixcheck $netmask 128
if [ $? = 1 ] ; then
ocf_log err "Invalid netmask specification [$netmask]."
return $OCF_ERR_CONFIGURED
fi
fi
else
# family = inet
ipcheck_ipv4 $match
if [ $? = 1 ] ; then
ocf_log err "IP address [$match] not valid."
return $OCF_ERR_CONFIGURED
fi
if [ -n "$netmask" ] ; then
prefixcheck $netmask 32
if [ $? = 1 ] ; then
ocf_log err "Invalid netmask specification [$netmask]."
return $OCF_ERR_CONFIGURED
fi
fi
if [ -n "$brdcast" ] ; then
ipcheck_ipv4 $brdcast
if [ $? = 1 ] ; then
if [ "$brdcast" != "+" -a "$brdcast" != "-" ]; then
ocf_log err "Invalid broadcast address [$brdcast]."
return $OCF_ERR_CONFIGURED
fi
fi
fi
fi
return $OCF_SUCCESS
}
findif()
{
local match="$OCF_RESKEY_ip"
local family
local scope
local nic="$OCF_RESKEY_nic"
local netmask="$OCF_RESKEY_cidr_netmask"
local brdcast="$OCF_RESKEY_broadcast"
echo $match | grep -qs ":"
if [ $? = 0 ] ; then
family="inet6"
else
family="inet"
scope="scope link"
fi
findif_check_params $family || return $?
if [ -n "$netmask" ]; then
match=$match/$netmask
fi
if [ -n "$nic" ] ; then
# NIC supports more than two.
set -- $(ip -o -f $family route list match $match $scope | grep "dev $nic " | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr)
else
set -- $(ip -o -f $family route list match $match $scope | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr)
fi
if [ $# = 0 ] ; then
case $OCF_RESKEY_ip in
127.*)
set -- `getloopbackinfo`
shift;;
esac
fi
if [ -z "$nic" -o -z "$netmask" ] ; then
if [ $# = 0 ] ; then
ocf_log err "Unable to find nic or netmask."
return $OCF_ERR_GENERIC
fi
case $1 in
*/*) : OK ;;
# "ip route" doesnt show netmask for IPv6 /128
*:*:*) : OK ;;
*)
ocf_log err "Unable to find cidr_netmask."
return $OCF_ERR_GENERIC ;;
esac
fi
[ -z "$nic" ] && nic=$3
[ -z "$netmask" ] && netmask=${1#*/}
if [ $family = "inet" ] ; then
if [ -z "$brdcast" ] ; then
if [ -n "$7" ] ; then
set -- `ip -o -f $family addr show | grep $7`
[ "$5" = brd ] && brdcast=$6
fi
fi
else
if [ -z "$OCF_RESKEY_nic" ] && [ -z "$OCF_RESKEY_cidr_netmask" ] && [ "$netmask" != "${1#*/}" ] ; then
ocf_log err "Unable to find nic, or netmask mismatch."
return $OCF_ERR_GENERIC
fi
fi
echo "$nic netmask $netmask broadcast $brdcast"
return $OCF_SUCCESS
}
|
