| 1 |
stephdl |
1.7 |
diff -Nur e-smith-tinydns-2.4.0.old2388/createlinks e-smith-tinydns-2.4.0.bz2388/createlinks |
| 2 |
|
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--- e-smith-tinydns-2.4.0.old2388/createlinks 2015-01-27 19:31:32.953849658 +0100 |
| 3 |
|
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+++ e-smith-tinydns-2.4.0.bz2388/createlinks 2015-01-27 20:23:29.080882560 +0100 |
| 4 |
stephdl |
1.5 |
@@ -26,3 +26,19 @@ |
| 5 |
stephdl |
1.1 |
service_link_enhanced("tinydns", "K65", "6"); |
| 6 |
|
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service_link_enhanced("tinydns", "K65", "0"); |
| 7 |
|
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service_link_enhanced("tinydns", "K65", "1"); |
| 8 |
|
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+ |
| 9 |
|
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+#link to services2adjust and templates2expand for dhcp-dns event |
| 10 |
|
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+ for my $event (qw( dhcp-dns )) |
| 11 |
|
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+ { |
| 12 |
|
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+ # services to launch on event |
| 13 |
stephdl |
1.5 |
+ safe_symlink("sigusr1", "root/etc/e-smith/events/$event/services2adjust/dnscache"); |
| 14 |
stephdl |
1.1 |
+ safe_symlink("sigusr1", "root/etc/e-smith/events/$event/services2adjust/tinydns"); |
| 15 |
|
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+ } |
| 16 |
|
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+ |
| 17 |
|
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+#creation of dhcp-dns service |
| 18 |
|
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+ safe_symlink("daemontools", "root/etc/rc.d/init.d/dhcp-dns"); |
| 19 |
|
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+ service_link_enhanced("dhcp-dns", "S85", "7"); |
| 20 |
|
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+ service_link_enhanced("dhcp-dns", "K65", "6"); |
| 21 |
|
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+ service_link_enhanced("dhcp-dns", "K65", "0"); |
| 22 |
|
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+ service_link_enhanced("dhcp-dns", "K65", "1"); |
| 23 |
|
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+ safe_symlink("/var/service/dhcp-dns/", "root/service/dhcp-dns"); |
| 24 |
stephdl |
1.7 |
diff -Nur e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status |
| 25 |
|
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--- e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status 1970-01-01 01:00:00.000000000 +0100 |
| 26 |
|
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+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status 2015-01-27 20:30:30.481143377 +0100 |
| 27 |
stephdl |
1.1 |
@@ -0,0 +1 @@ |
| 28 |
stephdl |
1.7 |
+disabled |
| 29 |
|
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diff -Nur e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type |
| 30 |
|
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--- e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type 1970-01-01 01:00:00.000000000 +0100 |
| 31 |
|
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+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type 2015-01-27 20:23:29.075882144 +0100 |
| 32 |
stephdl |
1.1 |
@@ -0,0 +1 @@ |
| 33 |
|
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+service |
| 34 |
stephdl |
1.7 |
diff -Nur e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords |
| 35 |
|
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--- e-smith-tinydns-2.4.0.old2388/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords 1970-01-01 01:00:00.000000000 +0100 |
| 36 |
|
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+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords 2015-01-28 00:28:30.792458726 +0100 |
| 37 |
|
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@@ -0,0 +1,128 @@ |
| 38 |
stephdl |
1.1 |
+{ |
| 39 |
stephdl |
1.5 |
+ use strict; |
| 40 |
|
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+ use warnings; |
| 41 |
|
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+ use esmith::Logger; |
| 42 |
|
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+ use esmith::ConfigDB; |
| 43 |
stephdl |
1.7 |
+ use esmith::HostsDB; |
| 44 |
stephdl |
1.5 |
+ # we need perl-Time-TAI64 for timestamp conversion |
| 45 |
|
|
+ use Time::TAI64 qw /unixtai64/; |
| 46 |
stephdl |
1.1 |
+ # we need perl-Date-Manip to convert to a unix timestamp |
| 47 |
|
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+ use Date::Manip qw /UnixDate/; |
| 48 |
stephdl |
1.5 |
+ use File::Copy; |
| 49 |
|
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+ |
| 50 |
stephdl |
1.7 |
+ my $DB = esmith::ConfigDB->open_ro or die ("Unable to open configuration database"); |
| 51 |
|
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+ my $hosts = esmith::HostsDB->open_ro or die ("Unable to open Host database"); |
| 52 |
stephdl |
1.5 |
+ |
| 53 |
stephdl |
1.7 |
+ #test if the service is enabled return if not |
| 54 |
|
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+ my $dhcpdns = $DB->get_prop('dhcp-dns','status') || 'disabled'; |
| 55 |
|
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+ return '' if $dhcpdns ne 'enabled'; |
| 56 |
|
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+ |
| 57 |
|
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+ #we start a hash for name & ip |
| 58 |
stephdl |
1.5 |
+ my %allocated_name = (); |
| 59 |
|
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+ my %allocated_ip_dhcplease = (); |
| 60 |
stephdl |
1.1 |
+ |
| 61 |
stephdl |
1.7 |
+ #start a hash of all hosts |
| 62 |
|
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+ my @hosts = $hosts->keys; |
| 63 |
|
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+ my %hostsdb; |
| 64 |
|
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+ @hostsdb{@hosts} = (); |
| 65 |
|
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+ |
| 66 |
stephdl |
1.1 |
+ # copy of dhcpd.leases file to /tmp because working directly on the original |
| 67 |
|
|
+ # is not a good idea |
| 68 |
stephdl |
1.5 |
+ copy("/var/lib/dhcpd/dhcpd.leases","/tmp/tmpdhcpd.leases") |
| 69 |
|
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+ or die ("Error dhcp-dns Service : Unable to copy the /var/lib/dhcpd/dhcpd.leases"); |
| 70 |
|
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+ |
| 71 |
stephdl |
1.7 |
+ #we want to write in log |
| 72 |
stephdl |
1.5 |
+ sub log2messages |
| 73 |
|
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+ { |
| 74 |
|
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+ my $message = shift; |
| 75 |
|
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+ tie *FH, 'esmith::Logger'; |
| 76 |
|
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+ print FH "$message"; |
| 77 |
|
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+ close FH; |
| 78 |
|
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+ } |
| 79 |
|
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+ |
| 80 |
stephdl |
1.3 |
+ |
| 81 |
|
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+ #Text::DHCPparse forked because it doesn't allow to retrieve the end of lease |
| 82 |
|
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+ #Only the start is found by the leaseparse of DHCPparse.pm s/starts/ends |
| 83 |
|
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+ sub leaseparse { |
| 84 |
|
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+ my $logfile = shift; |
| 85 |
|
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+ my ( %list, $ip ); |
| 86 |
|
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+ open FILE, $logfile or die; |
| 87 |
|
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+ |
| 88 |
|
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+ while (<FILE>) { |
| 89 |
|
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+ next if /^#|^$/; |
| 90 |
|
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+ if (/^lease (\d+\.\d+\.\d+\.\d+)/) { |
| 91 |
|
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+ $ip = $1; |
| 92 |
|
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+ $list{$ip} = sprintf("%-17s", $ip); |
| 93 |
|
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+ } |
| 94 |
|
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+ /^\s*hardware ethernet (.*);/ && ($list{$ip} .= sprintf("%-19s", $1)); |
| 95 |
|
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+ /^\s*ends \d (.*);/ && ($list{$ip} .= sprintf("%-21s", $1)); |
| 96 |
|
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+ /^\s*(abandoned).*/ && ($list{$ip} .= sprintf("%-19s", $1)); |
| 97 |
|
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+ /^\s*client-hostname "(.*)";/ && ($list{$ip} .= sprintf("%-17s", $1)); |
| 98 |
|
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+ } |
| 99 |
|
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+ |
| 100 |
|
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+ close FILE; |
| 101 |
|
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+ |
| 102 |
|
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+ # make all entries 74 characters long to format properly |
| 103 |
|
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+ foreach (keys %list) { |
| 104 |
|
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+ #$list{$_} = sprintf("%-74s", $list{$_}) if (length$list{$_} < 76); |
| 105 |
|
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+ $list{$_} = sprintf("%-74.74s", $list{$_}); |
| 106 |
|
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+ } |
| 107 |
|
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+ |
| 108 |
|
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+ return \%list; |
| 109 |
|
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+} |
| 110 |
|
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+ |
| 111 |
stephdl |
1.1 |
+ # now we parse the leases |
| 112 |
stephdl |
1.5 |
+ my $return = leaseparse('/tmp/tmpdhcpd.leases'); |
| 113 |
|
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+ my ($ip,$time,$mac,$name); |
| 114 |
|
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+ |
| 115 |
|
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+ # variable with local domain value (default is mycompamy.local) and retrieve the server name |
| 116 |
|
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+ my $localdomain = $DB->get_value('DomainName') or die ("Unable retrieve the DomainName property"); |
| 117 |
|
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+ my $servername = $DB->get_value('SystemName') or die ("Unable retrieve the SystemName property"); |
| 118 |
stephdl |
1.1 |
+ |
| 119 |
|
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+ $OUT .= "# A records for dhcp hosts in $localdomain\n"; |
| 120 |
|
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+ |
| 121 |
|
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+ foreach (keys %$return) { |
| 122 |
|
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+ ($ip, $time, $mac, $name) = unpack("A17 A21 A19 A30", $return->{$_}); |
| 123 |
stephdl |
1.5 |
+ |
| 124 |
|
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+ # when the dhcp lease is over $name is empty .. we want only non empty one |
| 125 |
|
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+ if ( $name ne "" ) |
| 126 |
|
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+ { |
| 127 |
|
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+ # we skip also ips & names already allocated |
| 128 |
|
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+ unless (exists $allocated_ip_dhcplease{$ip} || exists $allocated_name{$name}) |
| 129 |
stephdl |
1.1 |
+ { |
| 130 |
|
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+ # Convert lease end time to the format expected as |
| 131 |
|
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+ # see: http://cr.yp.to/djbdns/tinydns-data.html |
| 132 |
|
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+ my $ts = UnixDate($time, "%s"); |
| 133 |
|
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+ my $endtai = unixtai64($ts); |
| 134 |
|
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+ $endtai =~ s/@//; |
| 135 |
|
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+ |
| 136 |
|
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+ # Determine TTL |
| 137 |
|
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+ my $ttl = ''; |
| 138 |
|
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+ $ttl = 0 unless ($ts <= time); |
| 139 |
stephdl |
1.7 |
+ |
| 140 |
|
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+ # verify if dhcp client name is not used in host DB |
| 141 |
|
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+ if (! exists $hostsdb{"$name\.$localdomain"}) |
| 142 |
|
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+ { |
| 143 |
|
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+ $OUT .= "=$name.$localdomain:$ip:$ttl:$endtai\n" unless (($name eq $servername) || ($name !~ /^[a-zA-Z0-9][a-zA-Z0-9-]*$/)); |
| 144 |
|
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+ log2messages("The hostname of this server ($servername) is already in use with a different IP address in /var/lib/dhcpd/dhcpd.leases") |
| 145 |
|
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+ if ($name eq $servername); |
| 146 |
|
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+ log2messages("The hostname of the dhcp client ($name) has illegal characters in /var/lib/dhcpd/dhcpd.leases") |
| 147 |
|
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+ if ($name !~ /^[a-zA-Z0-9][a-zA-Z0-9-]*$/); |
| 148 |
|
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+ } |
| 149 |
|
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+ else |
| 150 |
|
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+ { |
| 151 |
|
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+ log2messages("The hostname of the dhcp client ($name) is already used in the hosts database"); |
| 152 |
|
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+ } |
| 153 |
stephdl |
1.1 |
+ } |
| 154 |
stephdl |
1.5 |
+ |
| 155 |
|
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+ $allocated_ip_dhcplease{$ip} = 1; |
| 156 |
|
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+ $allocated_name{$name} ++; |
| 157 |
|
|
+ |
| 158 |
stephdl |
1.6 |
+ log2messages("The hostname \"$name\" has already been assigned an IP address in /var/lib/dhcpd/dhcpd.leases") |
| 159 |
stephdl |
1.5 |
+ if ($allocated_name{$name} >1); |
| 160 |
stephdl |
1.1 |
+ } |
| 161 |
|
|
+ } |
| 162 |
|
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+ # remove the temp file |
| 163 |
stephdl |
1.5 |
+ unlink "/tmp/tmpdhcpd.leases" |
| 164 |
|
|
+ or log2messages("Error dhcp-dns Service : Unable to remove the /tmp/tmpdhcpd.leases"); |
| 165 |
stephdl |
1.1 |
+} |
| 166 |
stephdl |
1.7 |
diff -Nur e-smith-tinydns-2.4.0.old2388/root/var/service/dhcp-dns/dhcp-dns e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/dhcp-dns |
| 167 |
|
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--- e-smith-tinydns-2.4.0.old2388/root/var/service/dhcp-dns/dhcp-dns 1970-01-01 01:00:00.000000000 +0100 |
| 168 |
|
|
+++ e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/dhcp-dns 2015-01-28 00:24:48.209462754 +0100 |
| 169 |
|
|
@@ -0,0 +1,49 @@ |
| 170 |
stephdl |
1.1 |
+#!/usr/bin/perl |
| 171 |
stephdl |
1.5 |
+use strict; |
| 172 |
|
|
+use warnings; |
| 173 |
stephdl |
1.7 |
+use esmith::ConfigDB; |
| 174 |
|
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+ |
| 175 |
|
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+my $DB = esmith::ConfigDB->open_ro or die ("Unable to open configuration database"); |
| 176 |
|
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+my $dhcpdns = $DB->get_prop('dhcp-dns','status') || 'disabled'; |
| 177 |
stephdl |
1.1 |
+ |
| 178 |
|
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+my $lease_file = "/var/lib/dhcpd/dhcpd.leases"; |
| 179 |
|
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+ |
| 180 |
|
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+# last modified time |
| 181 |
|
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+my $modtime = 0; |
| 182 |
|
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+ |
| 183 |
|
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+# seconds to wait |
| 184 |
stephdl |
1.3 |
+my $update_freq = 30; |
| 185 |
stephdl |
1.1 |
+ |
| 186 |
stephdl |
1.7 |
+#we want to write in log |
| 187 |
stephdl |
1.5 |
+sub log2messages |
| 188 |
|
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+ { |
| 189 |
|
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+ my $message = shift; |
| 190 |
|
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+ tie *FH, 'esmith::Logger'; |
| 191 |
|
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+ print FH "$message"; |
| 192 |
|
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+ close FH; |
| 193 |
|
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+ } |
| 194 |
|
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+ |
| 195 |
stephdl |
1.1 |
+########################################################################### |
| 196 |
|
|
+# Main Loop |
| 197 |
stephdl |
1.7 |
+while ($dhcpdns eq 'enabled') { |
| 198 |
stephdl |
1.1 |
+ |
| 199 |
|
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+ # check the file's last updated time, if it's been changed, update |
| 200 |
|
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+ # the DNS and save the modified time. This will ALWAYS run once - on |
| 201 |
|
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+ # startup, since $modtime starts at zero. |
| 202 |
|
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+ |
| 203 |
|
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+ my @stats = stat ($lease_file); |
| 204 |
|
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+ if ($stats[9] > $modtime) { |
| 205 |
|
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+ |
| 206 |
|
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+ $modtime = $stats[9]; |
| 207 |
stephdl |
1.3 |
+ system ("/usr/bin/sv 1 /service/tinydns") ==0 |
| 208 |
stephdl |
1.5 |
+ or log2messages('Error service dhcp-dns : Unable to restart /service/tinydns'); |
| 209 |
stephdl |
1.3 |
+ |
| 210 |
|
|
+ system ("/usr/bin/sv 1 /service/dnscache") ==0 |
| 211 |
stephdl |
1.5 |
+ or log2messages('Error service dhcp-dns : Unable to do restart /service/dnscache'); |
| 212 |
stephdl |
1.1 |
+ } |
| 213 |
|
|
+ |
| 214 |
|
|
+ # wait till next check time |
| 215 |
|
|
+ sleep $update_freq; |
| 216 |
|
|
+ |
| 217 |
|
|
+} # end main |
| 218 |
|
|
+########################################################################### |
| 219 |
stephdl |
1.7 |
diff -Nur e-smith-tinydns-2.4.0.old2388/root/var/service/dhcp-dns/run e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/run |
| 220 |
|
|
--- e-smith-tinydns-2.4.0.old2388/root/var/service/dhcp-dns/run 1970-01-01 01:00:00.000000000 +0100 |
| 221 |
|
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+++ e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/run 2015-01-27 20:23:29.079882477 +0100 |
| 222 |
stephdl |
1.1 |
@@ -0,0 +1,4 @@ |
| 223 |
|
|
+#!/bin/sh |
| 224 |
|
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+ |
| 225 |
|
|
+exec 2>&1 |
| 226 |
|
|
+exec /usr/bin/perl dhcp-dns |
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