Files
netdisco/lib/App/Netdisco/Worker/Plugin/Arpnip/Subnets.pm
Oliver Gorwits dc1f76c1aa Feature to gather SNMP Walk, use as Pseudo Device, and Browse Objects
* fix anomalous name

* add gather worker

* fix encoding of binary storage

* store results back to job

* now parsing mbis report to translate

* fix the broken report parser

* rename gather to snapshot

* implement walk code copied from SNMP::Info

* can now bulkwalk and parse mibs report and store resolved walk in cache

* add func/glob aliasing broken

* better aliasing

* implement aliasing from globals and funcs

* fix regexp for matching netdisco-mibs report

* fake cache entry for all ND2 methods called, add comments

* also save to logs/snapshots/IP

* add doc for netdisco-do

* add is_pseudo column to device table

* support for loading cache for pseudo devices

* check for hrSystemUptime as well as sysUpTime for snmp connect

* display pseudo devices with yellow pill for name

* color all cells for layers for pseudo

* no need to b64 encode binary data in scalars as we b64 whole thing after

* tweaked uptime check

* store snapshot to database instead of Job

* expose snapshots in device details tab

* small ux improvements on snap download

* fixes for errors in subnet mask searching

* hide snapshot management for pseudo devices

* update to use new netdisco-mibs object cache

* update for new format oids file

* start of work on loading walk into db for browsing

* store values and meta

* add auto increment col and oid index to browser

* start web plugin for browser

* add virtual search for oid children

* have all oid in separte table (60 seconds load on my laptop)

* rename table and add relation

* store oid as int array

* fix sql for children

* make jstree start working

* working very slow tree expand

* fix to work when first displaying tree

* store both oid and oid_parts

* simplify SQL to speed up (more complicated perl)

* fix sql bug, add better index, prettify tree

* render the snmp node detail

* add node template, make scrollable, pretty print data values (insecure)

* store munge hint

* some dubious code to munge the data

* make sure to filter by IP on device_browser

* make safer the rendering of value data (but need to come back to key ordering)

* fix sorting on object values

* limit the opening of child nodes to keep response good and unclutter

* factor out the munge and make safer

* reject unknown mungers

* show the munger and option (not working) to change

* additional js for munge select

* complete custom munge

* change so that saving to database is only at CLI and on request

* hide snmp tab if no browser rows in the db

* add helpful message when no browser rows for the device

* stub handler for search and add recurse control

* working search

* minor ui fixes

* implement typeahead for leaf search

* limit rows in typeahead

* make sure device_browser is visited in delete and renumber

* add requirements for this branch

* update manifest

* make sure node search and typeahead are restricted to current device only
2021-11-06 07:47:29 +00:00

75 lines
2.0 KiB
Perl

package App::Netdisco::Worker::Plugin::Arpnip::Subnets;
use Dancer ':syntax';
use App::Netdisco::Worker::Plugin;
use aliased 'App::Netdisco::Worker::Status';
use App::Netdisco::Transport::SNMP ();
use App::Netdisco::Util::Permission 'check_acl_no';
use Dancer::Plugin::DBIC 'schema';
use NetAddr::IP::Lite ':lower';
use Time::HiRes 'gettimeofday';
register_worker({ phase => 'main', driver => 'snmp' }, sub {
my ($job, $workerconf) = @_;
my $device = $job->device;
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
or return Status->defer("arpnip failed: could not SNMP connect to $device");
# get directly connected networks
my @subnets = gather_subnets($device);
# TODO: IPv6 subnets
my $now = 'to_timestamp('. (join '.', gettimeofday) .')';
store_subnet($_, $now) for @subnets;
return Status->info(sprintf ' [%s] arpnip - processed %s Subnet entries',
$device->ip, scalar @subnets);
});
# gathers device subnets
sub gather_subnets {
my $device = shift;
my @subnets = ();
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
or return (); # already checked!
my $ip_netmask = $snmp->ip_netmask;
foreach my $entry (keys %$ip_netmask) {
my $ip = NetAddr::IP::Lite->new($entry) or next;
my $addr = $ip->addr;
next if $addr eq '0.0.0.0';
next if check_acl_no($ip, 'group:__LOCAL_ADDRESSES__');
next if setting('ignore_private_nets') and $ip->is_rfc1918;
my $netmask = $ip_netmask->{$addr} || $ip->bits();
next if $netmask eq '255.255.255.255' or $netmask eq '0.0.0.0';
my $cidr = NetAddr::IP::Lite->new($addr, $netmask)->network->cidr;
debug sprintf ' [%s] arpnip - found subnet %s', $device->ip, $cidr;
push @subnets, $cidr;
}
return @subnets;
}
# update subnets with new networks
sub store_subnet {
my ($subnet, $now) = @_;
schema('netdisco')->txn_do(sub {
schema('netdisco')->resultset('Subnet')->update_or_create(
{
net => $subnet,
last_discover => \$now,
},
{ for => 'update' });
});
}
true;