[c5c522c] | 1 | <? |
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| 2 | /* |
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| 3 | (C) 2004-2013 DatuX - info@datux.nl |
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| 4 | |
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| 5 | This program is free software: you can redistribute it and/or modify |
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| 6 | it under the terms of the GNU General Public License as published by |
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| 7 | the Free Software Foundation, either version 3 of the License, or |
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| 8 | (at your option) any later version. |
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| 9 | |
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| 10 | This program is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | GNU General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | */ |
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| 18 | |
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| 19 | require_once("../common.php"); |
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| 20 | require_once("../network/network.php"); |
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| 21 | require_once("../proc.php"); |
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| 22 | IncludeLang(__FILE__); |
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| 23 | |
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| 24 | $VPN_IPSEC_DIR="/etc/ipsec.d"; |
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| 25 | $VPN_PUB="$VPN_IPSEC_DIR/ipsec.pub"; |
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| 26 | $VPN_TUNNEL_DIR="$VPN_IPSEC_DIR/tunnels"; |
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| 27 | $VPN_LOG="/var/log/secure"; |
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| 28 | $VPN_STARTERRORS="$VPN_IPSEC_DIR/starterrors"; |
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| 29 | |
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| 30 | function vpn_Stop() |
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| 31 | { |
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| 32 | if (SvcIsUp("ipsec")) |
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| 33 | { |
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| 34 | SvcDown("ipsec"); |
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| 35 | } |
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| 36 | } |
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| 37 | |
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| 38 | //RET: false als het werk, anders error text. |
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| 39 | function vpn_Restart() |
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| 40 | { |
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| 41 | //only works on internet server |
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| 42 | if (!ModuleMatch("I")) |
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| 43 | return false; //return ok-code |
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| 44 | |
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| 45 | // global $VPN_STARTERRORS; |
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| 46 | vpn_Stop(); |
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| 47 | // LogInfo(_LogVPNStarting()); |
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| 48 | SvcUp("ipsec"); |
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| 49 | // FileWriteRaw("/etc/sysconfig/pluto_updown", "DEFAULTSOURCE=".GetFirstLanIp()."\n"); |
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| 50 | // Cmd("pgrphack closefd /usr/sbin/ipsec setup start |grep 'FATAL:' 1>&2",'',$out,$err); |
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| 51 | |
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| 52 | // if ($err) |
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| 53 | // { |
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| 54 | // FileWrite($VPN_STARTERRORS,$err); |
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| 55 | // LogError(_LogVPNstartErrors(implode(" ",$err))); |
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| 56 | // return ($err); |
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| 57 | // } |
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| 58 | // else |
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| 59 | // { |
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| 60 | // FileWrite($VPN_STARTERRORS,''); |
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| 61 | // sleep(2); //wacht zodat VPN subsysteem up is |
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| 62 | // //kijk of er tunnels up moeten |
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| 63 | // $tunnels=vpn_ReadTunnels(); |
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| 64 | // foreach ($tunnels as $name=>$conf) |
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| 65 | // { |
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| 66 | // //hij moet up zijn, EN hij is reeds getest |
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| 67 | // if ((!vpn_TunnelIsDownOnBoot($name)) && vpn_TunnelIsTested($name)) |
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| 68 | // vpn_TunnelUp($name); |
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| 69 | // } |
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| 70 | // return false; |
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| 71 | // } |
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| 72 | } |
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| 73 | |
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| 74 | function vpn_StartErrors() |
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| 75 | { |
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| 76 | global $VPN_STARTERRORS; |
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| 77 | if (is_file($VPN_STARTERRORS)) |
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| 78 | { |
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| 79 | $raw=FileReadRaw($VPN_STARTERRORS); |
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| 80 | } |
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| 81 | return ($raw); |
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| 82 | } |
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| 83 | |
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| 84 | /*function vpn_Failed() |
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| 85 | { |
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| 86 | global $VPN_IPSEC_DIR; |
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| 87 | return (is_file("$VPN_IPSEC_DIR/failed")); |
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| 88 | } |
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| 89 | |
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| 90 | function vpn_Tested() |
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| 91 | { |
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| 92 | global $VPN_IPSEC_DIR; |
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| 93 | return (is_file("$VPN_IPSEC_DIR/tested")); |
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| 94 | } |
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| 95 | */ |
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| 96 | |
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| 97 | |
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| 98 | //force vpn monitoring check. ( this is also done every minute with a crontab) |
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| 99 | function vpn_MonUpdate($name) |
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| 100 | { |
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| 101 | Progress("Checking tunnel status $name..."); |
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| 102 | SafeExec("syn3-ipseccheck '$name'"); |
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| 103 | Progress(""); |
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| 104 | } |
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| 105 | |
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| 106 | function vpn_TunnelUp($name) |
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| 107 | { |
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| 108 | |
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| 109 | $err=Cmd(" |
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| 110 | ( |
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| 111 | ipsec auto --down '$name' 2>/dev/null; |
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| 112 | ipsec auto --rereadsecrets; |
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| 113 | ipsec auto --replace '$name' && |
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| 114 | ipsec auto --asynchronous --up '$name' |
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| 115 | ) 2>&1 |
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| 116 | ",'',$out,$errout); |
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| 117 | if ($err!=0) |
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| 118 | { |
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| 119 | $out[]="Exit code $err"; |
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| 120 | LogError(_LogTunnelUpError($name,implode(" ",$out))); |
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| 121 | return false; |
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| 122 | } |
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| 123 | else |
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| 124 | { |
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| 125 | LogInfo(_LogTunnelUp($name)); |
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| 126 | return true; |
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| 127 | } |
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| 128 | } |
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| 129 | |
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| 130 | function vpn_TunnelDown($name) |
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| 131 | { |
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| 132 | vpn_TunnelSetDownOnBoot($name,1); |
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| 133 | |
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| 134 | $err=Cmd("ipsec auto --delete '$name' 2>&1",'',$out,$errout); |
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| 135 | vpn_MonUpdate($name); |
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| 136 | if ($err!=0) |
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| 137 | { |
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| 138 | LogError(_TunnelDownError($name,implode(" ",$out))); |
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| 139 | return false; |
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| 140 | } |
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| 141 | else |
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| 142 | { |
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| 143 | LogInfo(_LogTunnelDown($name)); |
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| 144 | return true; |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | function vpn_TunnelIsTested($name) |
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| 149 | { |
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| 150 | global $VPN_TUNNEL_DIR; |
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| 151 | return (!is_file("$VPN_TUNNEL_DIR/$name.untested")); |
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| 152 | } |
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| 153 | |
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| 154 | function vpn_TunnelSetTested($name,$tested) |
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| 155 | { |
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| 156 | global $VPN_TUNNEL_DIR; |
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| 157 | |
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| 158 | if ($tested) |
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| 159 | FileDelete("$VPN_TUNNEL_DIR/$name.untested"); |
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| 160 | else |
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| 161 | FileWriteRaw("$VPN_TUNNEL_DIR/$name.untested",""); |
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| 162 | } |
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| 163 | |
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| 164 | function vpn_TunnelIsDownOnBoot($name) |
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| 165 | { |
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| 166 | $tunnel=vpn_ReadTunnel($name); |
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| 167 | return ($tunnel["auto"]=="up"); |
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| 168 | } |
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| 169 | |
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| 170 | function vpn_TunnelSetDownOnBoot($name,$down) |
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| 171 | { |
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| 172 | $tunnel=vpn_ReadTunnel($name); |
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| 173 | if ($down) |
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| 174 | $tunnel["auto"]="ignore"; |
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| 175 | else |
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| 176 | $tunnel["auto"]="up"; |
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| 177 | vpn_WriteTunnel($name, $tunnel, false); |
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| 178 | } |
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| 179 | |
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| 180 | |
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| 181 | //gooi tunnel up, maar run backup script voor het geval er netwerk |
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| 182 | //conflict is. in dit geval gaat tunnel weer down |
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| 183 | function vpn_TunnelTestStart($name) |
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| 184 | { |
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| 185 | //test loopt nog? |
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| 186 | if ($_SESSION[testtunnel] && posix_kill($_SESSION[testtunnel][pid],0)) |
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| 187 | Error(_TestAlreadyRunning()); |
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| 188 | |
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| 189 | //start het backup script en onthoudt PID |
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| 190 | $_SESSION[testtunnel][pid]=BgExec("exec testtunnel.sh '$name'"); |
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| 191 | $_SESSION[testtunnel][name]=$name; |
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| 192 | vpn_TunnelSetTested($name,1); //het backup script zet hem weer op 0 als het misgaat |
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| 193 | vpn_TunnelUp($name); //niet controleren op errors |
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| 194 | return true; |
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| 195 | } |
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| 196 | |
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| 197 | //Controleer of er nog een test loopt, en of deze geslaagd is. |
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| 198 | //Roep deze functie aan NA het refreshen van de pagina, zodat je weet |
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| 199 | //dat de netwerk settings niet verstoord zijn. |
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| 200 | function vpn_TunnelTestEnd() |
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| 201 | { |
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| 202 | //is there a test running? |
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| 203 | if ($_SESSION[testtunnel]) |
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| 204 | { |
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| 205 | //kill het backup script BOEM |
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| 206 | posix_kill($_SESSION[testtunnel][pid],9); |
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| 207 | |
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| 208 | $name=$_SESSION[testtunnel][name]; |
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| 209 | //test is klaar nu |
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| 210 | unset($_SESSION[testtunnel]); |
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| 211 | |
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| 212 | //kijk of test gelukt of mislukt is en wijzig config |
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| 213 | if (!vpn_TunnelIsTested($name)) |
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| 214 | { |
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| 215 | LogError(_LogTunnelTestFailed($name)); |
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| 216 | } |
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| 217 | else |
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| 218 | { |
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| 219 | vpn_TunnelSetDownOnBoot($name, 0); |
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| 220 | vpn_MonUpdate($name); |
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| 221 | } |
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| 222 | } |
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| 223 | } |
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| 224 | |
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| 225 | function vpn_ReadSecret($name) |
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| 226 | { |
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| 227 | global $VPN_TUNNEL_DIR; |
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| 228 | $line=FileReadRaw("$VPN_TUNNEL_DIR/$name.key"); |
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| 229 | preg_match('/"(.*)"/',$line,$matches); |
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| 230 | return ($matches[1]); |
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| 231 | } |
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| 232 | |
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| 233 | function vpn_WriteSecret($name,$secret) |
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| 234 | { |
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| 235 | global $VPN_TUNNEL_DIR; |
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| 236 | $tunnel=vpn_ReadTunnel($name); |
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| 237 | |
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| 238 | $line="$tunnel[leftid] $tunnel[right]: PSK \"$secret\"\n"; |
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| 239 | FileWriteRaw("$VPN_TUNNEL_DIR/$name.key",$line); |
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| 240 | } |
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| 241 | |
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| 242 | function vpn_ValidName($name) |
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| 243 | { |
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| 244 | return ( |
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| 245 | (!preg_match("/[^a-z0-9-]/",$name)) && |
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| 246 | (strlen($name)<25) && |
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| 247 | (strlen($name)>=3) |
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| 248 | ); |
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| 249 | } |
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| 250 | |
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| 251 | function vpn_ValidSecret($secret) |
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| 252 | { |
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| 253 | return ( |
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| 254 | (strlen($secret)>=8) |
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| 255 | ); |
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| 256 | } |
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| 257 | |
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| 258 | |
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| 259 | function vpn_ValidPubKey($key) |
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| 260 | { |
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| 261 | $key=vpn_ReadableToPub($key); |
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| 262 | return ( |
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| 263 | (strlen($key)==370) && |
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| 264 | (substr($key,0,2)=='0s') && |
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| 265 | (!preg_match("/[^A-Za-z0-9+\/]/",substr($key,2))) |
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| 266 | ); |
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| 267 | } |
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| 268 | |
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| 269 | function vpn_SameKey($key1,$key2) |
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| 270 | { |
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| 271 | $key1=vpn_ReadableToPub($key1); |
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| 272 | $key2=vpn_ReadableToPub($key2); |
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| 273 | return ($key1==$key2); |
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| 274 | } |
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| 275 | |
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| 276 | |
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| 277 | function vpn_ReadPubKey() |
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| 278 | { |
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| 279 | global $VPN_PUB; |
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| 280 | $raw=FileReadMatches($VPN_PUB,"/#pubkey=/"); |
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| 281 | preg_match("/.*pubkey=(.*)/",$raw[0],$matches); |
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| 282 | return ($matches[1]); |
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| 283 | } |
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| 284 | |
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| 285 | //make key readable (insert new-lines etc) |
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| 286 | function vpn_PubToReadable($pubkey) |
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| 287 | { |
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| 288 | return(preg_replace("/(.{50})/","\$0\n",$pubkey)); |
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| 289 | } |
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| 290 | |
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| 291 | //filter all the crap from a readable key |
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| 292 | function vpn_ReadableToPub($pubkey) |
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| 293 | { |
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| 294 | return(preg_replace("/[^A-Za-z0-9+\/=]/","",$pubkey)); |
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| 295 | } |
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| 296 | |
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| 297 | //returns corresponding tunnel filename |
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| 298 | function vpn_GetTunnelFile($name) |
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| 299 | { |
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| 300 | global $VPN_TUNNEL_DIR; |
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| 301 | return ("$VPN_TUNNEL_DIR/$name.conf"); |
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| 302 | } |
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| 303 | |
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| 304 | function vpn_ReadTunnel($name) |
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| 305 | { |
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| 306 | $raw=FileRead(vpn_GetTunnelFile($name)); |
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| 307 | foreach ($raw as $line) |
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| 308 | { |
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| 309 | if (preg_match("/^[^a-z]*([a-z]*)=(.*)$/",$line,$matches)) |
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| 310 | $ret[$matches[1]]=$matches[2]; |
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| 311 | } |
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| 312 | return ($ret); |
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| 313 | } |
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| 314 | |
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| 315 | function vpn_ReadTunnels() |
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| 316 | { |
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| 317 | global $VPN_TUNNEL_DIR; |
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| 318 | $dh=opendir($VPN_TUNNEL_DIR); |
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| 319 | while ($file=readdir($dh)) |
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| 320 | { |
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| 321 | if (preg_match("/^(.*).conf$/",$file,$matches)) |
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| 322 | { |
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| 323 | if ($matches[1] != "dummy") |
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| 324 | $ret[$matches[1]]=vpn_ReadTunnel($matches[1]); |
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| 325 | } |
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| 326 | } |
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| 327 | return ($ret); |
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| 328 | } |
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| 329 | |
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| 330 | function vpn_WriteTunnel($name,$data, $needs_testing=true) |
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| 331 | { |
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| 332 | global $VPN_IPSEC_DIR; |
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| 333 | global $VPN_TUNNEL_DIR; |
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| 334 | $raw[]="conn $name"; |
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| 335 | foreach ($data as $varname=>$varvalue) |
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| 336 | { |
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| 337 | $raw[]="\t$varname=$varvalue"; |
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| 338 | } |
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| 339 | //mark configuration as untested |
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| 340 | if ($needs_testing) |
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| 341 | FileWriteRaw("$VPN_TUNNEL_DIR/$name.untested"); |
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| 342 | |
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| 343 | FileWrite(vpn_GetTunnelFile($name),$raw); |
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| 344 | LogInfo(_LogVPNSettingsChanged($name)); |
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| 345 | } |
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| 346 | |
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| 347 | function vpn_DelTunnel($name) |
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| 348 | { |
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| 349 | global $VPN_TUNNEL_DIR; |
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| 350 | vpn_TunnelDown($name); |
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| 351 | |
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| 352 | FileDelete("$VPN_TUNNEL_DIR/$name.conf"); |
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| 353 | FileDelete("$VPN_TUNNEL_DIR/$name.mon"); |
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| 354 | FileDelete("$VPN_TUNNEL_DIR/$name.key"); |
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| 355 | FileDelete("$VPN_TUNNEL_DIR/$name.down"); |
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| 356 | FileDelete("$VPN_TUNNEL_DIR/$name.untested"); |
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| 357 | LogInfo(_LogVPNTunnelDeleted($name)); |
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| 358 | } |
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| 359 | |
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| 360 | |
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| 361 | $VPN_STATES=array( |
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| 362 | 'Main'=>"Connecting...", |
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| 363 | 'STATE_MAIN_I1'=>"Connecting...", |
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| 364 | 'STATE_MAIN_R1'=>"Connection accepted...", |
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| 365 | 'STATE_MAIN_I2'=>"Connection complete...", |
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| 366 | 'STATE_MAIN_I3'=>"Checking keys...", |
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| 367 | 'STATE_MAIN_R2'=>"Checking keys...", |
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| 368 | 'STATE_MAIN_I4'=>"Keys accepted...", |
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| 369 | 'STATE_MAIN_R3'=>"Waiting for tunnel request...", |
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| 370 | 'Quick'=>"Requesting tunnel...", |
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| 371 | 'STATE_QUICK_I1'=>"Requesting tunnel...", |
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| 372 | 'STATE_QUICK_R1'=>"Tunnel request received...", |
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| 373 | 'STATE_QUICK_I2'=>"Tunnel established", |
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| 374 | 'STATE_QUICK_R2'=>"Tunnel established", |
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| 375 | ); |
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| 376 | |
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| 377 | |
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| 378 | $VPN_PRIO=array( |
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| 379 | 'Main'=>0, |
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| 380 | 'STATE_MAIN_I1'=>1, |
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| 381 | 'STATE_MAIN_R1'=>2, |
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| 382 | 'STATE_MAIN_I2'=>3, |
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| 383 | 'STATE_MAIN_I3'=>4, |
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| 384 | 'STATE_MAIN_R2'=>5, |
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| 385 | 'STATE_MAIN_I4'=>6, |
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| 386 | 'STATE_MAIN_R3'=>7, |
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| 387 | 'Quick'=>8, |
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| 388 | 'STATE_QUICK_I1'=>9, |
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| 389 | 'STATE_QUICK_R1'=>10, |
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| 390 | 'STATE_QUICK_I2'=>11, |
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| 391 | 'STATE_QUICK_R2'=>12, |
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| 392 | ); |
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| 393 | |
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| 394 | //tries to determine state from a logline. |
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| 395 | //returns false on no state found |
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| 396 | function vpn_LogToState($logline) |
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| 397 | { |
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| 398 | global $VPN_STATES; |
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| 399 | |
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| 400 | if (preg_match("/to state (.*)$/",$logline,$matches)) |
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| 401 | { |
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| 402 | if (isset($VPN_STATES[$matches[1]])) |
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| 403 | return ($matches[1]); |
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| 404 | } |
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| 405 | elseif (preg_match("/initiating (.*) Mode/",$logline,$matches)) |
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| 406 | { |
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| 407 | if (isset($VPN_STATES[$matches[1]])) |
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| 408 | return ($matches[1]); |
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| 409 | } |
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| 410 | else |
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| 411 | { |
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| 412 | return false; |
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| 413 | } |
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| 414 | } |
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| 415 | //read logging output of a tunnel |
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| 416 | //returns: $ret[]=array($state,$line); |
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| 417 | function vpn_GetLog($name) |
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| 418 | { |
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| 419 | global $VPN_LOG; |
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| 420 | $lines=SafeExec("grep '\]: \"$name\"' '$VPN_LOG'|tail -1000"); |
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| 421 | foreach ($lines as $line) |
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| 422 | { |
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| 423 | preg_match("/\]: \".*?\".(.*)/",$line,$matches); |
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| 424 | $ret[]=array(vpn_LogToState($matches[1]),$matches[1]); |
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| 425 | } |
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| 426 | return $ret; |
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| 427 | } |
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| 428 | |
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| 429 | //gets state of all tunnels |
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| 430 | //ret[tunnelname][state]=$state |
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| 431 | //ret[tunnelname][info][]=infolines |
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| 432 | function vpn_GetStatus() |
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| 433 | { |
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| 434 | global $VPN_STATES; |
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| 435 | global $VPN_PRIO; |
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| 436 | |
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| 437 | if (Cmd("ipsec whack --status",'',$output)!=0) |
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| 438 | { |
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| 439 | LogError("Error reading ipsec status. Please check if ipsec-service is running"); |
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| 440 | return (false); |
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| 441 | } |
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| 442 | else { |
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| 443 | $ret=Array(); |
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| 444 | foreach ($output as $line) |
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| 445 | { |
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| 446 | if (preg_match('/^.*#([0-9])*:.*"(.*?)"[:0-9]* ([A-Z0-9_]+) /',$line,$matches)) |
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| 447 | { |
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| 448 | $nr=$matches[1]; |
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| 449 | $name=$matches[2]; |
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| 450 | $state=$matches[3]; |
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| 451 | if ( |
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| 452 | $name && |
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| 453 | $state && |
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| 454 | $VPN_PRIO[$state]>=$VPN_PRIO[$ret[$name]['state']] |
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| 455 | ) |
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| 456 | { |
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| 457 | $ret[$name]['state']=$state; |
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| 458 | $ret[$name]['info'][]=$line; |
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| 459 | } |
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| 460 | } |
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| 461 | elseif (preg_match('/^.*"(.*?)": *(.*)$/',$line,$matches)) |
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| 462 | { |
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| 463 | $name=$matches[1]; |
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| 464 | $info=$matches[2]; |
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| 465 | if ($name && $info) |
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| 466 | { |
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| 467 | $ret[$name]['info'][]=$info; |
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| 468 | } |
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| 469 | } |
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| 470 | } |
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| 471 | |
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| 472 | return $ret; |
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| 473 | } |
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| 474 | } |
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| 475 | |
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| 476 | /* zit nu in network.php |
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| 477 | if ($_SERVER['argv'][1]=="restart") |
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| 478 | { |
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| 479 | vpn_Restart(); |
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| 480 | } |
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| 481 | */ |
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| 482 | |
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| 483 | |
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| 484 | ?> |
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