librenms-librenms/html/pages/device/edit/snmp.inc.php

<?php

if ($_POST['editing']) {
    if ($_SESSION['userlevel'] > '7') {
        $community    = mres($_POST['community']);
        $snmpver      = mres($_POST['snmpver']);
        $transport    = $_POST['transport'] ? mres($_POST['transport']) : $transport = 'udp';
        $port         = $_POST['port'] ? mres($_POST['port']) : $config['snmp']['port'];
        $timeout      = mres($_POST['timeout']);
        $retries      = mres($_POST['retries']);
        $poller_group = mres($_POST['poller_group']);
        $v3           = array(
            'authlevel'  => mres($_POST['authlevel']),
            'authname'   => mres($_POST['authname']),
            'authpass'   => mres($_POST['authpass']),
            'authalgo'   => mres($_POST['authalgo']),
            'cryptopass' => mres($_POST['cryptopass']),
            'cryptoalgo' => mres($_POST['cryptoalgo']),
        );

        // FIXME needs better feedback
        $update = array(
            'community'    => $community,
            'snmpver'      => $snmpver,
            'port'         => $port,
            'transport'    => $transport,
            'poller_group' => $poller_group,
        );

        if ($_POST['timeout']) {
            $update['timeout'] = $timeout;
        }
        else {
            $update['timeout'] = array('NULL');
        }

        if ($_POST['retries']) {
            $update['retries'] = $retries;
        }
        else {
            $update['retries'] = array('NULL');
        }

        $update = array_merge($update, $v3);

        $device_tmp = deviceArray($device['hostname'], $community, $snmpver, $port, $transport, $v3);
        if (isSNMPable($device_tmp)) {
            $rows_updated = dbUpdate($update, 'devices', '`device_id` = ?', array($device['device_id']));

            if ($rows_updated > 0) {
                $update_message = $rows_updated.' Device record updated.';
                $updated        = 1;
            }
            else if ($rows_updated = '-1') {
                $update_message = 'Device record unchanged. No update necessary.';
                $updated        = -1;
            }
            else {
                $update_message = 'Device record update error.';
                $updated        = 0;
            }
        }
        else {
            $update_message = 'Could not connect to device with new SNMP details';
            $updated        = 0;
        }
    }//end if
}//end if

$device = dbFetchRow('SELECT * FROM `devices` WHERE `device_id` = ?', array($device['device_id']));
$descr  = $device['purpose'];

echo '<div class="row">
    <div class="col-sm-6">';
if ($updated && $update_message) {
    print_message($update_message);
}
else if ($update_message) {
    print_error($update_message);
}

echo '    </div>
    </div>';

echo "
    <form id='edit' name='edit' method='post' action='' role='form' class='form-horizontal'>
    <input type=hidden name='editing' value='yes'>
    <div class='form-group'>
    <label for='snmpver' class='col-sm-2 control-label'>SNMP Details</label>
    <div class='col-sm-1'>
    <select id='snmpver' name='snmpver' class='form-control input-sm' onChange='changeForm();'>
    <option value='v1'>v1</option>
    <option value='v2c' ".($device['snmpver'] == 'v2c' ? 'selected' : '').">v2c</option>
    <option value='v3' ".($device['snmpver'] == 'v3' ? 'selected' : '').">v3</option>
    </select>
    </div>
    <div class='col-sm-2'>
    <input type='text' name='port' placeholder='port' class='form-control input-sm'>
    </div>
    <div class='col-sm-1'>
    <select name='transport' id='transport' class='form-control input-sm'>";
foreach ($config['snmp']['transports'] as $transport) {
    echo "<option value='".$transport."'";
    if ($transport == $device['transport']) {
        echo " selected='selected'";
    }

    echo '>'.$transport.'</option>';
}

echo "      </select>
    </div>
    </div>
    <div class='form-group'>
    <div class='col-sm-2'>
    </div>
    <div class='col-sm-1'>
    <input id='timeout' name='timeout' class='form-control input-sm' value='".($device['timeout'] ? $device['timeout'] : '')."' placeholder='seconds' />
    </div>
    <div class='col-sm-1'>
    <input id='retries' name='retries' class='form-control input-sm' value='".($device['timeout'] ? $device['retries'] : '')."' placeholder='retries' />
    </div>
    </div>
    <div id='snmpv1_2'>
    <div class='form-group'>
    <label class='col-sm-3 control-label text-left'><h4><strong>SNMPv1/v2c Configuration</strong></h4></label>
    </div>
    <div class='form-group'>
    <label for='community' class='col-sm-2 control-label'>SNMP Community</label>
    <div class='col-sm-4'>
    <input id='community' class='form-control' name='community' value='".$device['community']."' />
    </div>
    </div>
    </div>
    <div id='snmpv3'>
    <div class='form-group'>
    <label class='col-sm-3 control-label'><h4><strong>SNMPv3 Configuration</strong></h4></label>
    </div>
    <div class='form-group'>
    <label for='authlevel' class='col-sm-2 control-label'>Auth Level</label>
    <div class='col-sm-4'>
    <select id='authlevel' name='authlevel' class='form-control'>
    <option value='NoAuthNoPriv'>NoAuthNoPriv</option>
    <option value='AuthNoPriv' ".($device['authlevel'] == 'authNoPriv' ? 'selected' : '').">AuthNoPriv</option>
    <option value='AuthPriv' ".($device['authlevel'] == 'authPriv' ? 'selected' : '').">AuthPriv</option>
    </select>
    </div>
    </div>
    <div class='form-group'>
    <label for='authname' class='col-sm-2 control-label'>Auth User Name</label>
    <div class='col-sm-4'>
    <input type='text' id='authname' name='authname' class='form-control' value='".$device['authname']."'>
    </div>
    </div>
    <div class='form-group'>
    <label for='authpass' class='col-sm-2 control-label'>Auth Password</label>
    <div class='col-sm-4'>
    <input type='password' id='authpass' name='authpass' class='form-control' value='".$device['authpass']."'>
    </div>
    </div>
    <div class='form-group'>
    <label for='authalgo' class='col-sm-2 control-label'>Auth Algorithm</label>
    <div class='col-sm-4'>
    <select id='authalgo' name='authalgo' class='form-control'>
    <option value='MD5'>MD5</option>
    <option value='SHA' ".($device['authalgo'] === 'SHA' ? 'selected' : '').">SHA</option>
    </select>
    </div>
    </div>
    <div class='form-group'>
    <label for='cryptopass' class='col-sm-2 control-label'>Crypto Password</label>
    <div class='col-sm-4'>
    <input type='password' id='cryptopass' name='cryptopass' class='form-control' value='".$device['cryptopass']."'>
    </div>
    </div>
    <div class='form-group'>
    <label for='cryptoalgo' class='col-sm-2 control-label'>Crypto Algorithm</label>
    <div class='col-sm-4'>
    <select id='cryptoalgo' name='cryptoalgo' class='form-control'>
    <option value='AES'>AES</option>
    <option value='DES' ".($device['cryptoalgo'] === 'DES' ? 'selected' : '').'>DES</option>
    </select>
    </div>
    </div>
    </div>';

if ($config['distributed_poller'] === true) {
    echo '
        <div class="form-group">
        <label for="poller_group" class="col-sm-2 control-label">Poller Group</label>
        <div class="col-sm-4">
        <select name="poller_group" id="poller_group" class="form-control input-sm">
        <option value="0"> Default poller group</option>
        ';

    foreach (dbFetchRows('SELECT `id`,`group_name` FROM `poller_groups`') as $group) {
        echo '<option value="'.$group['id'].'"';
        if ($device['poller_group'] == $group['id']) {
            echo ' selected';
        }

        echo '>'.$group['group_name'].'</option>';
    }

    echo '
        </select>
        </div>
        </div>
        ';
}//end if


echo '
    <button type="submit" name="Submit" class="btn btn-default">Save</button>
    </form>
    ';

?>
<script>
function changeForm() {
    snmpVersion = $("#snmpver").val();
    if(snmpVersion == 'v1' || snmpVersion == 'v2c') {
        $('#snmpv1_2').show();
        $('#snmpv3').hide();
    }
    else if(snmpVersion == 'v3') {
        $('#snmpv1_2').hide();
        $('#snmpv3').show();
    }
}
<?php
if ($snmpver == 'v3' || $device['snmpver'] == 'v3') {
    echo "$('#snmpv1_2').toggle();";
}
else {
    echo "$('#snmpv3').toggle();";
}

?>
</script>