449 lines
16 KiB
Perl
449 lines
16 KiB
Perl
package App::Netdisco::Worker::Plugin::Discover::Properties;
|
|
|
|
use Dancer ':syntax';
|
|
use App::Netdisco::Worker::Plugin;
|
|
use aliased 'App::Netdisco::Worker::Status';
|
|
|
|
use App::Netdisco::Transport::SNMP ();
|
|
use App::Netdisco::Util::Permission qw/check_acl_no check_acl_only/;
|
|
use App::Netdisco::Util::FastResolver 'hostnames_resolve_async';
|
|
use App::Netdisco::Util::Device 'get_device';
|
|
use App::Netdisco::Util::DNS 'hostname_from_ip';
|
|
use App::Netdisco::Util::SNMP 'snmp_comm_reindex';
|
|
use Dancer::Plugin::DBIC 'schema';
|
|
use Scope::Guard 'guard';
|
|
use NetAddr::IP::Lite ':lower';
|
|
use Encode;
|
|
|
|
register_worker({ phase => 'early', driver => 'snmp' }, sub {
|
|
my ($job, $workerconf) = @_;
|
|
|
|
my $device = $job->device;
|
|
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
|
|
or return Status->defer("discover failed: could not SNMP connect to $device");
|
|
|
|
# VTP Management Domain -- assume only one.
|
|
my $vtpdomains = $snmp->vtp_d_name;
|
|
my $vtpdomain;
|
|
if (defined $vtpdomains and scalar values %$vtpdomains) {
|
|
$device->set_column( vtp_domain => (values %$vtpdomains)[-1] );
|
|
}
|
|
|
|
my $hostname = hostname_from_ip($device->ip);
|
|
$device->set_column( dns => $hostname ) if $hostname;
|
|
|
|
my @properties = qw/
|
|
snmp_ver
|
|
description uptime name
|
|
layers mac
|
|
ps1_type ps2_type ps1_status ps2_status
|
|
fan slots
|
|
vendor os os_ver
|
|
/;
|
|
|
|
foreach my $property (@properties) {
|
|
$device->set_column( $property => $snmp->$property );
|
|
}
|
|
|
|
(my $model = Encode::decode('UTF-8', ($snmp->model || ''))) =~ s/\s+$//;
|
|
(my $serial = Encode::decode('UTF-8', ($snmp->serial || ''))) =~ s/\s+$//;
|
|
(my $chassis_id = Encode::decode('UTF-8', ($snmp->serial1 || ''))) =~ s/\s+$//;
|
|
$device->set_column( model => $model );
|
|
$device->set_column( serial => $serial );
|
|
$device->set_column( chassis_id => (($chassis_id ne $serial) ? $chassis_id : '') );
|
|
$device->set_column( contact => Encode::decode('UTF-8', $snmp->contact) );
|
|
$device->set_column( location => Encode::decode('UTF-8', $snmp->location) );
|
|
|
|
$device->set_column( num_ports => $snmp->ports );
|
|
$device->set_column( snmp_class => $snmp->class );
|
|
$device->set_column( snmp_engineid => unpack('H*', ($snmp->snmpEngineID || '')) );
|
|
|
|
$device->set_column( last_discover => \'now()' );
|
|
|
|
# protection for failed SNMP gather
|
|
if ($device->in_storage) {
|
|
my $ip = $device->ip;
|
|
my $protect = setting('snmp_field_protection')->{'device'} || {};
|
|
my %dirty = $device->get_dirty_columns;
|
|
foreach my $field (keys %dirty) {
|
|
next unless check_acl_only($ip, $protect->{$field});
|
|
if (!defined $dirty{$field} or $dirty{$field} eq '') {
|
|
return $job->cancel("discover cancelled: $ip failed to return valid $field");
|
|
}
|
|
}
|
|
}
|
|
|
|
# support for Hooks
|
|
vars->{'hook_data'} = { $device->get_columns };
|
|
delete vars->{'hook_data'}->{'snmp_comm'}; # for privacy
|
|
|
|
# support for new_device Hook
|
|
vars->{'new_device'} = 1 if not $device->in_storage;
|
|
|
|
schema('netdisco')->txn_do(sub {
|
|
$device->update_or_insert(undef, {for => 'update'});
|
|
return Status->done("Ended discover for $device");
|
|
});
|
|
});
|
|
|
|
register_worker({ phase => 'early', driver => 'snmp' }, sub {
|
|
my ($job, $workerconf) = @_;
|
|
|
|
my $device = $job->device;
|
|
return unless $device->in_storage;
|
|
return unless $job->subaction eq 'with-nodes';
|
|
|
|
my $db_device = get_device($device->ip);
|
|
if ($device->ip ne $db_device->ip) {
|
|
return schema('netdisco')->txn_do(sub {
|
|
$device->delete;
|
|
return $job->cancel("fresh discover cancelled: $device already known as $db_device");
|
|
});
|
|
}
|
|
|
|
return Status->info(" [$device] device - OK to continue discover");
|
|
});
|
|
|
|
register_worker({ phase => 'early', driver => 'snmp' }, sub {
|
|
my ($job, $workerconf) = @_;
|
|
|
|
my $device = $job->device;
|
|
return unless $device->in_storage;
|
|
|
|
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
|
|
or return Status->defer("discover failed: could not SNMP connect to $device");
|
|
|
|
my $pass = Status->info(" [$device] device - OK to continue discover");
|
|
my $interfaces = $snmp->interfaces;
|
|
|
|
# OK if no interfaces
|
|
return $pass if 0 == scalar keys %$interfaces;
|
|
# OK if any value is not the same as key
|
|
return $pass if scalar grep {$_ ne $interfaces->{$_}} keys %$interfaces;
|
|
# OK if any non-digit in values
|
|
return $pass if scalar grep {$_ !~ m/^[0-9]+$/} values %$interfaces;
|
|
|
|
# gather ports
|
|
my $device_ports = {map {($_->port => $_)}
|
|
$device->ports(undef, {prefetch => 'properties'})->all};
|
|
# OK if no ports
|
|
return $pass if 0 == scalar keys %$device_ports;
|
|
# OK if any interface value is a port name
|
|
foreach my $port (keys %$device_ports) {
|
|
return $pass if scalar grep {$port eq $_} values %$interfaces;
|
|
}
|
|
|
|
# else cancel
|
|
return $job->cancel("discover cancelled: $device failed to return valid interfaces");
|
|
});
|
|
|
|
register_worker({ phase => 'early', driver => 'snmp' }, sub {
|
|
my ($job, $workerconf) = @_;
|
|
|
|
my $device = $job->device;
|
|
return unless $device->in_storage;
|
|
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
|
|
or return Status->defer("discover failed: could not SNMP connect to $device");
|
|
|
|
my @aliases = ();
|
|
push @aliases, _get_ipv4_aliases($device, $snmp);
|
|
push @aliases, _get_ipv6_aliases($device, $snmp);
|
|
|
|
debug sprintf ' resolving %d aliases with max %d outstanding requests',
|
|
scalar @aliases, $ENV{'PERL_ANYEVENT_MAX_OUTSTANDING_DNS'};
|
|
my $resolved_aliases = hostnames_resolve_async(\@aliases);
|
|
|
|
# fake one aliases entry for devices not providing ip_index
|
|
# or if we're discovering on an IP not listed in ip_index
|
|
push @$resolved_aliases, { alias => $device->ip, dns => $device->dns }
|
|
if 0 == scalar grep {$_->{alias} eq $device->ip} @aliases;
|
|
|
|
# support for Hooks
|
|
vars->{'hook_data'}->{'device_ips'} = $resolved_aliases;
|
|
|
|
schema('netdisco')->txn_do(sub {
|
|
my $gone = $device->device_ips->delete;
|
|
debug sprintf ' [%s] device - removed %d aliases',
|
|
$device->ip, $gone;
|
|
$device->device_ips->populate($resolved_aliases);
|
|
|
|
return Status->info(sprintf ' [%s] aliases - added %d new aliases',
|
|
$device->ip, scalar @aliases);
|
|
});
|
|
});
|
|
|
|
register_worker({ phase => 'early', driver => 'snmp' }, sub {
|
|
my ($job, $workerconf) = @_;
|
|
|
|
my $device = $job->device;
|
|
return unless $device->in_storage;
|
|
my $snmp = App::Netdisco::Transport::SNMP->reader_for($device)
|
|
or return Status->defer("discover failed: could not SNMP connect to $device");
|
|
|
|
my $interfaces = $snmp->interfaces;
|
|
my $i_type = $snmp->i_type;
|
|
my $i_ignore = $snmp->i_ignore;
|
|
my $i_descr = $snmp->i_description;
|
|
my $i_mtu = $snmp->i_mtu;
|
|
my $i_speed = $snmp->i_speed;
|
|
my $i_speed_admin = $snmp->i_speed_admin;
|
|
my $i_mac = $snmp->i_mac;
|
|
my $i_up = $snmp->i_up;
|
|
my $i_up_admin = $snmp->i_up_admin;
|
|
my $i_name = $snmp->i_name;
|
|
my $i_duplex = $snmp->i_duplex;
|
|
my $i_duplex_admin = $snmp->i_duplex_admin;
|
|
my $i_stp_state = $snmp->i_stp_state;
|
|
my $i_vlan = $snmp->i_vlan;
|
|
my $i_lastchange = $snmp->i_lastchange;
|
|
my $agg_ports = $snmp->agg_ports;
|
|
|
|
# clear the cached uptime and get a new one
|
|
my $dev_uptime = $snmp->load_uptime;
|
|
if (!defined $dev_uptime) {
|
|
error sprintf ' [%s] interfaces - Error! Failed to get uptime from device!',
|
|
$device->ip;
|
|
return Status->error("discover failed: no uptime from device $device!");
|
|
}
|
|
|
|
# used to track how many times the device uptime wrapped
|
|
my $dev_uptime_wrapped = 0;
|
|
|
|
# use SNMP-FRAMEWORK-MIB::snmpEngineTime if available to
|
|
# fix device uptime if wrapped
|
|
if (defined $snmp->snmpEngineTime) {
|
|
$dev_uptime_wrapped = int( $snmp->snmpEngineTime * 100 / 2**32 );
|
|
if ($dev_uptime_wrapped > 0) {
|
|
debug sprintf ' [%s] interfaces - device uptime wrapped %d times - correcting',
|
|
$device->ip, $dev_uptime_wrapped;
|
|
$device->uptime( $dev_uptime + $dev_uptime_wrapped * 2**32 );
|
|
}
|
|
}
|
|
|
|
# build device interfaces suitable for DBIC
|
|
my %interfaces;
|
|
foreach my $entry (keys %$interfaces) {
|
|
my $port = $interfaces->{$entry};
|
|
|
|
if (not $port) {
|
|
debug sprintf ' [%s] interfaces - ignoring %s (no port mapping)',
|
|
$device->ip, $entry;
|
|
next;
|
|
}
|
|
|
|
if (scalar grep {$port =~ m/^$_$/} @{setting('ignore_interfaces') || []}) {
|
|
debug sprintf
|
|
' [%s] interfaces - ignoring %s (%s) (config:ignore_interfaces)',
|
|
$device->ip, $entry, $port;
|
|
next;
|
|
}
|
|
|
|
if (exists $i_ignore->{$entry}) {
|
|
debug sprintf ' [%s] interfaces - ignoring %s (%s) (%s)',
|
|
$device->ip, $entry, $port, ($i_type->{$entry} || '');
|
|
next;
|
|
}
|
|
|
|
# Skip interfaces which are 'notPresent' and match the notpresent type filter
|
|
if (defined $i_up->{$entry} and defined $i_type->{$entry} and $i_up->{$entry} eq 'notPresent' and (scalar grep {$i_type->{$entry} =~ m/^$_$/} @{setting('ignore_notpresent_types') || []}) ) {
|
|
debug sprintf ' [%s] interfaces - ignoring %s (%s) (%s) (config:ignore_notpresent_types)',
|
|
$device->ip, $entry, $port, $i_up->{$entry};
|
|
next;
|
|
}
|
|
|
|
my $lc = $i_lastchange->{$entry} || 0;
|
|
if (not $dev_uptime_wrapped and $lc > $dev_uptime) {
|
|
debug sprintf ' [%s] interfaces - device uptime wrapped (%s) - correcting',
|
|
$device->ip, $port;
|
|
$device->uptime( $dev_uptime + 2**32 );
|
|
$dev_uptime_wrapped = 1;
|
|
}
|
|
|
|
if ($device->is_column_changed('uptime') and $lc) {
|
|
if ($lc < $dev_uptime) {
|
|
# ambiguous: lastchange could be sysUptime before or after wrap
|
|
if ($dev_uptime > 30000 and $lc < 30000) {
|
|
# uptime wrap more than 5min ago but lastchange within 5min
|
|
# assume lastchange was directly after boot -> no action
|
|
}
|
|
else {
|
|
# uptime wrap less than 5min ago or lastchange > 5min ago
|
|
# to be on safe side, assume lastchange after counter wrap
|
|
debug sprintf
|
|
' [%s] interfaces - correcting LastChange for %s, assuming sysUptime wrap',
|
|
$device->ip, $port;
|
|
$lc += $dev_uptime_wrapped * 2**32;
|
|
}
|
|
}
|
|
}
|
|
|
|
$interfaces{$port} = {
|
|
port => $port,
|
|
descr => $i_descr->{$entry},
|
|
up => $i_up->{$entry},
|
|
up_admin => $i_up_admin->{$entry},
|
|
mac => $i_mac->{$entry},
|
|
speed => $i_speed->{$entry},
|
|
speed_admin => $i_speed_admin->{$entry},
|
|
mtu => $i_mtu->{$entry},
|
|
name => Encode::decode('UTF-8', $i_name->{$entry}),
|
|
duplex => $i_duplex->{$entry},
|
|
duplex_admin => $i_duplex_admin->{$entry},
|
|
stp => $i_stp_state->{$entry},
|
|
type => $i_type->{$entry},
|
|
vlan => $i_vlan->{$entry},
|
|
pvid => $i_vlan->{$entry},
|
|
is_master => 'false',
|
|
slave_of => undef,
|
|
lastchange => $lc,
|
|
};
|
|
}
|
|
|
|
# must do this after building %interfaces so that we can set is_master
|
|
foreach my $sidx (keys %$agg_ports) {
|
|
my $slave = $interfaces->{$sidx} or next;
|
|
next unless defined $agg_ports->{$sidx}; # slave without a master?!
|
|
my $master = $interfaces->{ $agg_ports->{$sidx} } or next;
|
|
next unless exists $interfaces{$slave} and exists $interfaces{$master};
|
|
|
|
$interfaces{$slave}->{slave_of} = $master;
|
|
$interfaces{$master}->{is_master} = 'true';
|
|
}
|
|
|
|
# support for Hooks
|
|
vars->{'hook_data'}->{'ports'} = [values %interfaces];
|
|
|
|
schema('netdisco')->resultset('DevicePort')->txn_do_locked(sub {
|
|
my $gone = $device->ports->delete({keep_nodes => 1});
|
|
debug sprintf ' [%s] interfaces - removed %d interfaces',
|
|
$device->ip, $gone;
|
|
$device->update_or_insert(undef, {for => 'update'});
|
|
$device->ports->populate([values %interfaces]);
|
|
|
|
return Status->info(sprintf ' [%s] interfaces - added %d new interfaces',
|
|
$device->ip, scalar values %interfaces);
|
|
});
|
|
});
|
|
|
|
# return a list of VRF which are OK to connect
|
|
sub _get_vrf_list {
|
|
my ($device, $snmp) = @_;
|
|
|
|
return () if ! $snmp->cisco_comm_indexing;
|
|
|
|
my @ok_vrfs = ();
|
|
my $vrf_name = $snmp->vrf_name || {};
|
|
|
|
while (my ($idx, $vrf) = each(%$vrf_name)) {
|
|
if ($vrf =~ /^\S+$/) {
|
|
my $ctx_name = pack("C*",split(/\./,$idx));
|
|
$ctx_name =~ s/.*[^[:print:]]+//;
|
|
debug sprintf(' [%s] Discover VRF %s with SNMP Context %s', $device->ip, $vrf, $ctx_name);
|
|
push (@ok_vrfs, $ctx_name);
|
|
}
|
|
}
|
|
|
|
return @ok_vrfs;
|
|
}
|
|
|
|
sub _get_ipv4_aliases {
|
|
my ($device, $snmp) = @_;
|
|
my @aliases;
|
|
|
|
my $ip_index = $snmp->ip_index;
|
|
my $interfaces = $snmp->interfaces;
|
|
my $ip_netmask = $snmp->ip_netmask;
|
|
|
|
# Get IP Table per VRF if supported
|
|
my @vrf_list = _get_vrf_list($device, $snmp);
|
|
if (scalar @vrf_list) {
|
|
my $guard = guard { snmp_comm_reindex($snmp, $device, 0) };
|
|
foreach my $vrf (@vrf_list) {
|
|
snmp_comm_reindex($snmp, $device, $vrf);
|
|
$ip_index = { %$ip_index, %{$snmp->ip_index} };
|
|
$interfaces = { %$interfaces, %{$snmp->interfaces} };
|
|
$ip_netmask = { %$ip_netmask, %{$snmp->ip_netmask} };
|
|
}
|
|
}
|
|
|
|
# build device aliases suitable for DBIC
|
|
foreach my $entry (keys %$ip_index) {
|
|
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 $iid = $ip_index->{$addr};
|
|
my $port = $interfaces->{$iid};
|
|
my $subnet = $ip_netmask->{$addr}
|
|
? NetAddr::IP::Lite->new($addr, $ip_netmask->{$addr})->network->cidr
|
|
: undef;
|
|
|
|
debug sprintf ' [%s] device - aliased as %s', $device->ip, $addr;
|
|
push @aliases, {
|
|
alias => $addr,
|
|
port => $port,
|
|
subnet => $subnet,
|
|
dns => undef,
|
|
};
|
|
}
|
|
|
|
return @aliases;
|
|
}
|
|
|
|
sub _get_ipv6_aliases {
|
|
my ($device, $snmp) = @_;
|
|
my @aliases;
|
|
|
|
my $ipv6_index = $snmp->ipv6_index || {};
|
|
my $ipv6_addr = $snmp->ipv6_addr || {};
|
|
my $ipv6_type = $snmp->ipv6_type || {};
|
|
my $ipv6_pfxlen = $snmp->ipv6_addr_prefixlength || {};
|
|
my $interfaces = $snmp->interfaces || {};
|
|
|
|
# Get IP Table per VRF if supported
|
|
my @vrf_list = _get_vrf_list($device, $snmp);
|
|
if (scalar @vrf_list) {
|
|
my $guard = guard { snmp_comm_reindex($snmp, $device, 0) };
|
|
foreach my $vrf (@vrf_list) {
|
|
snmp_comm_reindex($snmp, $device, $vrf);
|
|
$ipv6_index = { %$ipv6_index, %{$snmp->ipv6_index || {}} };
|
|
$ipv6_addr = { %$ipv6_addr, %{$snmp->ipv6_addr || {}} };
|
|
$ipv6_type = { %$ipv6_type, %{$snmp->ipv6_type || {}} };
|
|
$ipv6_pfxlen = { %$ipv6_pfxlen, %{$snmp->ipv6_addr_prefixlength || {}} };
|
|
$interfaces = { %$interfaces, %{$snmp->interfaces} };
|
|
}
|
|
}
|
|
|
|
# build device aliases suitable for DBIC
|
|
foreach my $iid (keys %$ipv6_index) {
|
|
next unless $ipv6_type->{$iid} and $ipv6_type->{$iid} eq 'unicast';
|
|
my $entry = $ipv6_addr->{$iid} or next;
|
|
my $ip = NetAddr::IP::Lite->new($entry) or next;
|
|
my $addr = $ip->addr;
|
|
|
|
next if $addr eq '::0';
|
|
next if check_acl_no($ip, 'group:__LOCAL_ADDRESSES__');
|
|
|
|
my $port = $interfaces->{ $ipv6_index->{$iid} };
|
|
my $subnet = $ipv6_pfxlen->{$iid}
|
|
? NetAddr::IP::Lite->new($addr .'/'. $ipv6_pfxlen->{$iid})->network->cidr
|
|
: undef;
|
|
|
|
debug sprintf ' [%s] device - aliased as %s', $device->ip, $addr;
|
|
push @aliases, {
|
|
alias => $addr,
|
|
port => $port,
|
|
subnet => $subnet,
|
|
dns => undef,
|
|
};
|
|
}
|
|
|
|
return @aliases;
|
|
}
|
|
|
|
true;
|