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<?php
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/* $Id$ */
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/*
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unbound.inc
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part of the pfSense project (http://www.pfsense.com)
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Copyright (C) 2011 Warren Baker
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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pfSense_BUILDER_BINARIES: /usr/local/sbin/unbound /usr/local/sbin/unbound-anchor
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pfSense_BUILDER_BINARIES: /usr/local/sbin/unbound-checkconf /usr/local/sbin/unbound-control
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pfSense_BUILDER_BINARIES: /usr/local/sbin/unbound-control-setup /usr/local/sbin/unbound-host
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*/
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function unbound_add_domain_overrides($pvt=false) {
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global $config;
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$domains = $config['unbound']['domainoverrides'];
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$sorted_domains = msort($domains, "domain");
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$result = array();
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foreach($sorted_domains as $domain) {
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$domain_key = current($domain);
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if(!isset($result[$domain_key])) {
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$result[$domain_key] = array();
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}
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$result[$domain_key][] = $domain['ip'];
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}
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// Domain overrides that have multiple entries need multiple stub-addr: added
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$domain_entries = "";
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foreach($result as $domain=>$ips) {
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if($pvt == true) {
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$domain_entries .= "private-domain: \"$domain\"\n";
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$domain_entries .= "domain-insecure: \"$domain\"\n";
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} else {
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$domain_entries .= "stub-zone:\n";
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$domain_entries .= "\tname: \"$domain\"\n";
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foreach($ips as $ip) {
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$domain_entries .= "\tstub-addr: $ip\n";
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}
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$domain_entries .= "\tstub-prime: no\n";
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}
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}
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return $domain_entries;
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}
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function unbound_optimization() {
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global $config;
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$optimization_settings = array();
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/* Set the number of threads equal to number of CPUs.
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* Use 1 to disable threading, if for some reason this sysctl fails.
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*/
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$numprocs = intval(trim(`/sbin/sysctl kern.smp.cpus | /usr/bin/cut -d" " -f2`));
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if($numprocs > 0)
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$optimization['number_threads'] = "num-threads: {$numprocs}";
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else
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$optimization['number_threads'] = "num-threads: 1";
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// Slabs to help reduce lock contention.
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if ($numprocs > 4) {
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$optimization['msg_cache_slabs'] = "msg-cache-slabs: {$numprocs}";
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$optimization['rrset_cache_slabs'] = "rrset-cache-slabs: {$numprocs}";
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$optimization['infra_cache_slabs'] = "infra-cache-slabs: {$numprocs}";
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$optimization['key_cache_slabs'] = "key-cache-slabs: {$numprocs}";
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} else {
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$optimization['msg_cache_slabs'] = "msg-cache-slabs: 4";
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$optimization['rrset_cache_slabs'] = "rrset-cache-slabs: 4";
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$optimization['infra_cache_slabs'] = "infra-cache-slabs: 4";
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$optimization['key_cache_slabs'] = "key-cache-slabs: 4";
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}
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// Memory usage default of 4Mb
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$optimization['msg_cache_size'] = "msg-cache-size: 4m";
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$optimization['rrset_cache_size'] = "rrset-cache-size: 8m";
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// More outgoing connections per thread otherwise assign a default of 4096 for a single thread
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if($numprocs > 0) {
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$or = (1024/$numprocs) - 50;
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$optimization['outgoing_range'] = "outgoing-range: {$or}";
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} else {
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$optimization['outgoing_range'] = "outgoing-range: {4096}";
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}
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// Larger socket buffer for busy servers
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// Check that it is set to 4MB (by default the OS has it configured to 4MB)
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foreach ($config['sysctl']['item'] as $tunable) {
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if ($tunable['tunable'] == 'kern.ipc.maxsockbuf') {
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$so = floor(($tunable['value']/1024/1024)-1);
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// Check to ensure that the number is not a negative
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if ($so > 0)
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$optimization['so_rcvbuf'] = "so-rcvbuf: {$so}m";
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else
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unset($optimization['so_rcvbuf']);
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}
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}
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// Safety check in case kern.ipc.maxsockbuf is deleted.
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if(!isset($optimization['so_rcvbuf']))
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$optimization['so_rcvbuf'] = "#so-rcvbuf: 4m";
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return $optimization;
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}
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?>
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