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dhcp-pool: Fix off-by-one error in pool size.

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"range" statement gives the lowest and highest IP addresses (both
inclusive) in a pool. dhcp-pool did not count the highest address
when calculating pool size.
This commit is contained in:
Tomaz Solc 2016-10-01 09:25:51 +02:00
parent a582c4bae2
commit 316a59e156
1 changed files with 5 additions and 2 deletions
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7
plugins/network/dhcp-pool
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@ -73,7 +73,7 @@ else {
# For each pool, count how many leases from that pool are currently active
foreach $start (keys %pools) {
$size = $pools{$start};
$end = $start+$size;
$end = $start+$size-1;
$free = $size;
foreach $lease (@activeleases) {
@ -103,10 +103,13 @@ sub determine_pools {
if ($line =~ /range[\s]+([\d]+\.[\d]+\.[\d]+\.[\d]+)[\s]+([\d]+\.[\d]+\.[\d]+\.[\d]+)/) {
$start = string2ip($1);
$end = string2ip($2);
$size = $end - $start;
defined($start) || next;
defined($end) || next;
# The range statement gives the lowest and highest IP addresses in a range.
$size = $end - $start + 1;
$pools{$start} = $size;
}
}