1 |
stephdl |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/createlinks e-smith-tinydns-2.4.0.bz2388/createlinks |
2 |
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--- e-smith-tinydns-2.4.0/createlinks 2006-03-14 23:01:42.000000000 +0100 |
3 |
stephdl |
1.5 |
+++ e-smith-tinydns-2.4.0.bz2388/createlinks 2015-01-17 18:02:35.489764844 +0100 |
4 |
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@@ -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 |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/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/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status 1970-01-01 01:00:00.000000000 +0100 |
26 |
stephdl |
1.5 |
+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/status 2015-01-16 20:02:12.050969025 +0100 |
27 |
stephdl |
1.1 |
@@ -0,0 +1 @@ |
28 |
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+enabled |
29 |
stephdl |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/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/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type 1970-01-01 01:00:00.000000000 +0100 |
31 |
stephdl |
1.5 |
+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/db/configuration/defaults/dhcp-dns/type 2015-01-16 20:02:12.050969025 +0100 |
32 |
stephdl |
1.1 |
@@ -0,0 +1 @@ |
33 |
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+service |
34 |
stephdl |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/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/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords 1970-01-01 01:00:00.000000000 +0100 |
36 |
stephdl |
1.6 |
+++ e-smith-tinydns-2.4.0.bz2388/root/etc/e-smith/templates/var/service/tinydns/root/data/65dhcpARecords 2015-01-17 19:45:33.892642388 +0100 |
37 |
stephdl |
1.5 |
@@ -0,0 +1,107 @@ |
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 |
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+ # we need perl-Time-TAI64 for timestamp conversion |
44 |
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+ use Time::TAI64 qw /unixtai64/; |
45 |
stephdl |
1.1 |
+ # we need perl-Date-Manip to convert to a unix timestamp |
46 |
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+ use Date::Manip qw /UnixDate/; |
47 |
stephdl |
1.5 |
+ use File::Copy; |
48 |
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+ |
49 |
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+ my $DB = esmith::ConfigDB->open_ro or die ("cannot open configuration database"); |
50 |
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+ |
51 |
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+ #we start a hash for name because we don't want several same names & ip |
52 |
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+ my %allocated_name = (); |
53 |
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+ my %allocated_ip_dhcplease = (); |
54 |
stephdl |
1.1 |
+ |
55 |
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+ # copy of dhcpd.leases file to /tmp because working directly on the original |
56 |
|
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+ # is not a good idea |
57 |
stephdl |
1.5 |
+ copy("/var/lib/dhcpd/dhcpd.leases","/tmp/tmpdhcpd.leases") |
58 |
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+ or die ("Error dhcp-dns Service : Unable to copy the /var/lib/dhcpd/dhcpd.leases"); |
59 |
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+ |
60 |
|
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+ #we create a fonction because we want to write in log |
61 |
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+ sub log2messages |
62 |
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+ { |
63 |
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+ my $message = shift; |
64 |
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+ tie *FH, 'esmith::Logger'; |
65 |
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+ print FH "$message"; |
66 |
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+ close FH; |
67 |
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+ } |
68 |
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+ |
69 |
stephdl |
1.3 |
+ |
70 |
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+ #Text::DHCPparse forked because it doesn't allow to retrieve the end of lease |
71 |
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+ #Only the start is found by the leaseparse of DHCPparse.pm s/starts/ends |
72 |
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+ sub leaseparse { |
73 |
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+ my $logfile = shift; |
74 |
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+ my ( %list, $ip ); |
75 |
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+ open FILE, $logfile or die; |
76 |
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+ |
77 |
|
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+ while (<FILE>) { |
78 |
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+ next if /^#|^$/; |
79 |
|
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+ if (/^lease (\d+\.\d+\.\d+\.\d+)/) { |
80 |
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+ $ip = $1; |
81 |
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+ $list{$ip} = sprintf("%-17s", $ip); |
82 |
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+ } |
83 |
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+ /^\s*hardware ethernet (.*);/ && ($list{$ip} .= sprintf("%-19s", $1)); |
84 |
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+ /^\s*ends \d (.*);/ && ($list{$ip} .= sprintf("%-21s", $1)); |
85 |
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+ /^\s*(abandoned).*/ && ($list{$ip} .= sprintf("%-19s", $1)); |
86 |
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+ /^\s*client-hostname "(.*)";/ && ($list{$ip} .= sprintf("%-17s", $1)); |
87 |
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+ } |
88 |
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+ |
89 |
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+ close FILE; |
90 |
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+ |
91 |
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+ # make all entries 74 characters long to format properly |
92 |
|
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+ foreach (keys %list) { |
93 |
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+ #$list{$_} = sprintf("%-74s", $list{$_}) if (length$list{$_} < 76); |
94 |
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+ $list{$_} = sprintf("%-74.74s", $list{$_}); |
95 |
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+ } |
96 |
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+ |
97 |
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+ return \%list; |
98 |
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+} |
99 |
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+ |
100 |
stephdl |
1.1 |
+ # now we parse the leases |
101 |
stephdl |
1.5 |
+ my $return = leaseparse('/tmp/tmpdhcpd.leases'); |
102 |
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+ my ($ip,$time,$mac,$name); |
103 |
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+ |
104 |
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+ # variable with local domain value (default is mycompamy.local) and retrieve the server name |
105 |
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+ my $localdomain = $DB->get_value('DomainName') or die ("Unable retrieve the DomainName property"); |
106 |
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+ my $servername = $DB->get_value('SystemName') or die ("Unable retrieve the SystemName property"); |
107 |
stephdl |
1.1 |
+ |
108 |
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+ $OUT .= "# A records for dhcp hosts in $localdomain\n"; |
109 |
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+ |
110 |
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+ foreach (keys %$return) { |
111 |
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+ ($ip, $time, $mac, $name) = unpack("A17 A21 A19 A30", $return->{$_}); |
112 |
stephdl |
1.5 |
+ |
113 |
|
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+ # when the dhcp lease is over $name is empty .. we want only non empty one |
114 |
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+ if ( $name ne "" ) |
115 |
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+ { |
116 |
|
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+ # we skip also ips & names already allocated |
117 |
|
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+ unless (exists $allocated_ip_dhcplease{$ip} || exists $allocated_name{$name}) |
118 |
stephdl |
1.1 |
+ { |
119 |
|
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+ # Convert lease end time to the format expected as |
120 |
|
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+ # see: http://cr.yp.to/djbdns/tinydns-data.html |
121 |
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+ my $ts = UnixDate($time, "%s"); |
122 |
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+ my $endtai = unixtai64($ts); |
123 |
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+ $endtai =~ s/@//; |
124 |
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+ |
125 |
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+ # Determine TTL |
126 |
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+ my $ttl = ''; |
127 |
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+ $ttl = 0 unless ($ts <= time); |
128 |
stephdl |
1.5 |
+ $OUT .= "=$name.$localdomain:$ip:$ttl:$endtai\n" unless ($name eq $servername); |
129 |
stephdl |
1.6 |
+ log2messages("The hostname of this server ($servername) is already in use with a different IP address in /var/lib/dhcpd/dhcpd.leases") |
130 |
stephdl |
1.5 |
+ if ($name eq $servername); |
131 |
stephdl |
1.1 |
+ } |
132 |
stephdl |
1.5 |
+ |
133 |
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+ $allocated_ip_dhcplease{$ip} = 1; |
134 |
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+ $allocated_name{$name} ++; |
135 |
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+ |
136 |
stephdl |
1.6 |
+ log2messages("The hostname \"$name\" has already been assigned an IP address in /var/lib/dhcpd/dhcpd.leases") |
137 |
stephdl |
1.5 |
+ if ($allocated_name{$name} >1); |
138 |
stephdl |
1.1 |
+ } |
139 |
|
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+ } |
140 |
|
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+ # remove the temp file |
141 |
stephdl |
1.5 |
+ unlink "/tmp/tmpdhcpd.leases" |
142 |
|
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+ or log2messages("Error dhcp-dns Service : Unable to remove the /tmp/tmpdhcpd.leases"); |
143 |
stephdl |
1.1 |
+} |
144 |
stephdl |
1.5 |
+ |
145 |
stephdl |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/root/var/service/dhcp-dns/dhcp-dns e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/dhcp-dns |
146 |
|
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--- e-smith-tinydns-2.4.0/root/var/service/dhcp-dns/dhcp-dns 1970-01-01 01:00:00.000000000 +0100 |
147 |
stephdl |
1.5 |
+++ e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/dhcp-dns 2015-01-17 18:06:32.318810671 +0100 |
148 |
|
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@@ -0,0 +1,45 @@ |
149 |
stephdl |
1.1 |
+#!/usr/bin/perl |
150 |
stephdl |
1.5 |
+use strict; |
151 |
|
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+use warnings; |
152 |
stephdl |
1.1 |
+ |
153 |
|
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+my $lease_file = "/var/lib/dhcpd/dhcpd.leases"; |
154 |
|
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+ |
155 |
|
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+# last modified time |
156 |
|
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+my $modtime = 0; |
157 |
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+ |
158 |
|
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+# seconds to wait |
159 |
stephdl |
1.3 |
+my $update_freq = 30; |
160 |
stephdl |
1.1 |
+ |
161 |
stephdl |
1.5 |
+#we create a function because we want to write in log |
162 |
|
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+sub log2messages |
163 |
|
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+ { |
164 |
|
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+ my $message = shift; |
165 |
|
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+ tie *FH, 'esmith::Logger'; |
166 |
|
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+ print FH "$message"; |
167 |
|
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+ close FH; |
168 |
|
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+ } |
169 |
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+ |
170 |
stephdl |
1.1 |
+########################################################################### |
171 |
|
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+# Main Loop |
172 |
|
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+while (1) { |
173 |
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+ |
174 |
|
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+ # check the file's last updated time, if it's been changed, update |
175 |
|
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+ # the DNS and save the modified time. This will ALWAYS run once - on |
176 |
|
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+ # startup, since $modtime starts at zero. |
177 |
|
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+ |
178 |
|
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+ my @stats = stat ($lease_file); |
179 |
|
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+ if ($stats[9] > $modtime) { |
180 |
|
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+ |
181 |
|
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+ $modtime = $stats[9]; |
182 |
stephdl |
1.3 |
+ system ("/usr/bin/sv 1 /service/tinydns") ==0 |
183 |
stephdl |
1.5 |
+ or log2messages('Error service dhcp-dns : Unable to restart /service/tinydns'); |
184 |
stephdl |
1.3 |
+ |
185 |
|
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+ system ("/usr/bin/sv 1 /service/dnscache") ==0 |
186 |
stephdl |
1.5 |
+ or log2messages('Error service dhcp-dns : Unable to do restart /service/dnscache'); |
187 |
stephdl |
1.1 |
+ } |
188 |
|
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+ |
189 |
|
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+ # wait till next check time |
190 |
|
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+ sleep $update_freq; |
191 |
|
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+ |
192 |
|
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+} # end main |
193 |
|
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+########################################################################### |
194 |
stephdl |
1.3 |
diff -Nur e-smith-tinydns-2.4.0/root/var/service/dhcp-dns/run e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/run |
195 |
|
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--- e-smith-tinydns-2.4.0/root/var/service/dhcp-dns/run 1970-01-01 01:00:00.000000000 +0100 |
196 |
stephdl |
1.5 |
+++ e-smith-tinydns-2.4.0.bz2388/root/var/service/dhcp-dns/run 2015-01-16 20:02:12.055969339 +0100 |
197 |
stephdl |
1.1 |
@@ -0,0 +1,4 @@ |
198 |
|
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+#!/bin/sh |
199 |
|
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+ |
200 |
|
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+exec 2>&1 |
201 |
|
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+exec /usr/bin/perl dhcp-dns |