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Check validity of gateway before committing to dhcpd.conf

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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@849 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
jbjohnso 2008-03-20 13:13:28 +00:00
parent 66316efd9f
commit eaf972e020
1 changed files with 8 additions and 1 deletions
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9
xCAT-server-2.0/lib/xcat/plugins/dhcp.pm
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@ -360,6 +360,8 @@ sub addnet {
}
my @netent;
my $maskn = unpack("N",inet_aton($mask));
my $netn = unpack("N",inet_aton($net));
@netent = (
" subnet $net netmask $mask {\n",
" max-lease-time 43200;\n",
@ -367,7 +369,12 @@ sub addnet {
" default-lease-time 43200;\n"
);
if ($gateway) {
push @netent," option routers $gateway;\n";
my $gaten = unpack("N",inet_aton($gateway));
if (($gaten & $maskn) == ($maskn & $netn)) {
push @netent," option routers $gateway;\n";
} else {
$callback->({error=>["Specified gateway $gateway is not valid for $net/$mask, must be on same network"],errorcode=>[1]});
}
}
if ($tftp) {
push @netent," next-server $tftp;\n";