NAME

Zonemaster::Engine - A tool to check the quality of a DNS zone

SYNOPSIS

    my @results = Zonemaster::Engine->test_zone('iis.se')

INTRODUCTION

This manual describes the main Zonemaster::Engine module. If what you're after is documentation on the Zonemaster test engine as a whole, see Zonemaster::Engine::Overview.

METHODS

init_engine()

Run the inititalization tasks if they have not been run already. This method is called automatically in INIT block.

test_zone($name)

Runs all available tests and returns a list of Zonemaster::Engine::Logger::Entry objects.

test_module($module, $name)

Runs all available tests for the zone with the given name in the specified module.

test_method($module, $method, $name)

Run one particular test method in one particular module for one particular zone. The requested module must be in the list of active loaded modules (that is, not the Basic module and not a module disabled by the current profile), and the method must be listed in the metadata the module exports. If those requirements are fulfilled, the method will be called with the provided arguments.

zone($name)

Returns a Zonemaster::Engine::Zone object for the given name.

ns($name, $address)

Returns a Zonemaster::Engine::Nameserver object for the given name and address.

profile()

Returns the effective profile (Zonemaster::Engine::Profile object).

logger()

Returns the global Zonemaster::Engine::Logger object.

all_tags()

Returns a list of all the tags that can be logged for all avilable test modules.

all_methods()

Returns a hash, where the keys are test module names and the values are lists with the names of the test methods in that module.

recurse($name, $type, $class)

Does a recursive lookup for the given name, type and class, and returns the resulting packet (if any). Simply calls "recurse" in Zonemaster::Engine::Recursor on a globally stored object.

can_continue()

In case of critical condition that prevents tool to process tests, add test here and return False.

save_cache($filename)

After running the tests, save the accumulated cache to a file with the given name.

preload_cache($filename)

Before running the tests, load the cache with information from a file with the given name. This file must have the same format as is produced by "save_cache()".

asn_lookup($ip)

Takes a single IP address (string or Net::IP::XS object) and returns a list of AS numbers, if any.

modules()

Returns a list of the loaded test modules. Exactly the same as "modules" in Zonemaster::Engine::Test.

add_fake_delegation($domain, $data, %flags)

This method adds some fake delegation information to the system.

The arguments are a domain name, and a hashref with delegation information. The keys in the hash are nameserver names, and the values are arrayrefs of IP addresses for their corresponding nameserver. Alternatively the IP addresses may be specified as an `undef` which is handled the same as an empty arrayref.

For each provided nameserver with an empty list of addresses, either a FAKE_DELEGATION_NO_IP or a FAKE_DELEGATION_IN_ZONE_NO_IP message is emitted.

The only recognized flag is fill_in_empty_oob_glue. This flag is boolean and defaults to true. If this flag is true, this method updates the given $data by looking up and filling in some glue addresses. Specifically the glue addresses for any nameserver name that are out-of-bailiwick of the given $domain and that comes with an empty list of addresses.

Returns `1` if all name servers in $data have non-empty lists of glue (after they've been filled in) or if `fill_in_empty_oob_glue` is false. Otherwise it returns `undef`.

Examples:

    Zonemaster::Engine->add_fake_delegation(
        'lysator.liu.se' => {
            'ns1.nic.fr' => [ ],
            'ns.nic.se'  => [ '212.247.7.228',  '2a00:801:f0:53::53' ],
            'i.ns.se'    => [ '194.146.106.22', '2001:67c:1010:5::53' ],
            'ns3.nic.se' => [ '212.247.8.152',  '2a00:801:f0:211::152' ]
        },
    );

returns 1.

    Zonemaster::Engine->add_fake_delegation(
        'lysator.liu.se' => {
            'ns1.lysator.liu.se' => [ ],
            'ns.nic.se'  => [ '212.247.7.228',  '2a00:801:f0:53::53' ],
            'i.ns.se'    => [ '194.146.106.22', '2001:67c:1010:5::53' ],
            'ns3.nic.se' => [ '212.247.8.152',  '2a00:801:f0:211::152' ]
        }
    );

returns undef (signalling that fake delegation with empty glue was added to the system).

    Zonemaster::Engine->add_fake_delegation(
        'lysator.liu.se' => {
            'ns1.nic.fr' => [ ],
            'ns.nic.se'  => [ '212.247.7.228',  '2a00:801:f0:53::53' ],
            'i.ns.se'    => [ '194.146.106.22', '2001:67c:1010:5::53' ],
            'ns3.nic.se' => [ '212.247.8.152',  '2a00:801:f0:211::152' ]
        },
        fill_in_empty_oob_glue => 0,
    );

returns 1. It does not even attempt to fill in glue for ns1.nic.fr.

add_fake_ds($domain, $data)

This method adds fake DS records to the system. The arguments are a domain name, and a reference to a list of references to hashes. The hashes in turn must have the keys keytag, algorithm, type and digest, with the values holding the corresponding data. The digest data should be a single unbroken string of hexadecimal digits.

Example:

   Zonemaster::Engine->add_fake_ds(
      'nic.se' => [
         { keytag => 16696, algorithm => 5, type => 2, digest => '40079DDF8D09E7F10BB248A69B6630478A28EF969DDE399F95BC3B39F8CBACD7' },
         { keytag => 16696, algorithm => 5, type => 1, digest => 'EF5D421412A5EAF1230071AFFD4F585E3B2B1A60' },
      ]
   );

start_time_now()

Set the logger's start time to the current time.

reset()

Reset logger start time to current time, empty the list of log messages, clear nameserver object cache and recursor cache.

AUTHORS

Vincent Levigneron <vincent.levigneron at nic.fr> - Current maintainer

Calle Dybedahl <calle at init.se> - Original author

LICENSE

This is free software under a 2-clause BSD license. The full text of the license can be found in the LICENSE file included with this distribution.