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<?php
/*
 * config.console.inc
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
 * All rights reserved.
 *
 * originally part of m0n0wall (http://m0n0.ch/wall)
 * Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *    "This product includes software developed by the pfSense Project
 *    for use in the pfSense® software distribution. (http://www.pfsense.org/).
 *
 * 4. The names "pfSense" and "pfSense Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    coreteam@pfsense.org.
 *
 * 5. Products derived from this software may not be called "pfSense"
 *    nor may "pfSense" appear in their names without prior written
 *    permission of the Electric Sheep Fencing, LLC.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *
 * "This product includes software developed by the pfSense Project
 * for use in the pfSense software distribution (http://www.pfsense.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

function set_networking_interfaces_ports() {
	global $noreboot;
	global $config;
	global $g;
	global $fp;

	$fp = fopen('php://stdin', 'r');

	$memory = get_memory();
	$physmem = $memory[0];
	$realmem = $memory[1];

	if ($physmem < $g['minimum_ram_warning']) {
		echo "\n\n\n";
		echo gettext("DANGER!  WARNING!  ACHTUNG!") . "\n\n";
		printf(gettext("%s requires *AT LEAST* %s RAM to function correctly.%s"), $g['product_name'], $g['minimum_ram_warning_text'], "\n");
		printf(gettext("Only (%s) MB RAM has been detected, with (%s) available to %s.%s"), $realmem, $physmem, $g['product_name'], "\n");
		echo "\n" . gettext("Press ENTER to continue.") . " ";
		fgets($fp);
		echo "\n";
	}

	$iflist = get_interface_list();

	/* Function flow is based on $key and $auto_assign or the lack thereof */
	$key = null;

	/* Only present auto interface option if running from the installer media and interface mismatch*/
	if ((preg_match("/cdrom/", $g['platform'])) && is_interface_mismatch()) {
		$auto_assign = false;
	}

	echo <<<EOD

Valid interfaces are:


EOD;

	if (!is_array($iflist)) {
		echo gettext("No interfaces found!") . "\n";
		$iflist = array();
	} else {
		foreach ($iflist as $iface => $ifa) {
			$friendly = convert_real_interface_to_friendly_interface_name($iface);	
			$ifstatus = pfSense_get_interface_addresses($config['interfaces'][$friendly]['if']);
			if (is_array($ifstatus) && $ifstatus['linkstateup'])
				$status = "  (up)";
			else
				$status = "(down)";
			$ifsmallist = trim($ifsmallist . " " . $iface);
			echo sprintf("% -7s%s %s %s\n", $iface, $ifa['mac'],
				$status, substr($ifa['dmesg'], 0, 48));
		}
	}

	if ($auto_assign) {
		echo <<<EOD

		!!! Installation Media Detected: Auto Interface Option !!!!
BEGIN MANUAL CONFIGURATION OR THE SYSTEM WILL PROCEED WITH AUTO CONFIGURATION.

EOD;
	}

	echo "\n" . gettext("Do VLANs need to be set up first?");
	echo "\n" .
		gettext(
			"If VLANs will not be used, or only for optional interfaces, it is typical to\n" .
			"say no here and use the webConfigurator to configure VLANs later, if required.") .
		"\n";
	echo "\n" . gettext("Should VLANs be set up now [y|n]?") . " ";

	if ($auto_assign) {
		$key = timeout();
	} else {
		$key = chop(fgets($fp));
	}

	if (!isset($key) and $auto_assign) {	// Auto Assign Interfaces
		do {
			echo <<<EOD

   !!! Auto Assigning Interfaces !!!

For setup purposes, there must be at least one NIC connected for
the LAN. If a second NIC is connected, it will be assigned to the
WAN. Otherwise, WAN will be temporarily assigned to the next
available NIC found regardless of activity. The WAN interface
should then be assigned and configured as required.

Please make the pfSense NIC connections now.
The system will continue checking until they have been made.

Searching for active interfaces...

EOD;
			unset($wanif, $lanif);

			$media_iflist = $plugged_in = array();
			$media_iflist = get_interface_list("media");
			foreach ($media_iflist as $iface => $ifa) {
				if ($ifa['up']) {
					$plugged_in[] = $iface;
				}
			}

			$lanif = array_shift($plugged_in);
			$wanif = array_shift($plugged_in);

			if (isset($lanif) && !isset($wanif)) {
				foreach ($iflist as $iface => $ifa) {
					if ($iface != $lanif) {
						$wanif = $iface;
						break;
					}
				}
			}

			echo <<<EOD

Assigned WAN to : $wanif
Assigned LAN to : $lanif

If these assignments are not suitable,
press any key to go back to manual configuration.

EOD;
			$key = timeout(20);
			if (isset($key)) {
				return;
			}
		} while (!isset($wanif));

		$config['system']['enablesshd'] = 'enabled';
		$key = 'y';

	} else {
		//Manually assign interfaces
		if (in_array($key, array('y', 'Y'))) {
			vlan_setup();
		}

		if (is_array($config['vlans']['vlan']) && count($config['vlans']['vlan'])) {

			echo "\n\n" . gettext("VLAN interfaces:") . "\n\n";
			foreach ($config['vlans']['vlan'] as $vlan) {

				echo sprintf("% -16s%s\n", "{$vlan['if']}_vlan{$vlan['tag']}",
					"VLAN tag {$vlan['tag']}, parent interface {$vlan['if']}");

				$iflist[$vlan['if'] . '_vlan' . $vlan['tag']] = array();
				$ifsmallist = trim($ifsmallist . " " . $vlan['if'] . '_vlan' . $vlan['tag']);
			}
		}

		echo <<<EOD

If the names of the interfaces are not known, auto-detection can
be used instead. To use auto-detection, please disconnect all
interfaces before pressing 'a' to begin the process.

EOD;

		do {
			echo "\n" . gettext("Enter the WAN interface name or 'a' for auto-detection") . " ";
			printf(gettext("%s(%s or a): "), "\n", $ifsmallist);
			$wanif = chop(fgets($fp));
			if ($wanif === "") {
				return;
			}
			if ($wanif === "a") {
				$wanif = autodetect_interface("WAN", $fp);
			} else if (!array_key_exists($wanif, $iflist)) {
				printf(gettext("%sInvalid interface name '%s'%s"), "\n", $wanif, "\n");
				unset($wanif);
				continue;
			}
			$ifsmallist = trim(str_replace("  ", " ", str_replace($wanif, "", $ifsmallist)));
		} while (!$wanif);

		do {
			printf(gettext("%sEnter the LAN interface name or 'a' for auto-detection %s" .
				"NOTE: this enables full Firewalling/NAT mode.%s" .
				"(%s a or nothing if finished):%s"), "\n", "\n", "\n", $ifsmallist, " ");

			$lanif = chop(fgets($fp));

			if ($lanif == "exit") {
				exit;
			}

			if ($lanif == "") {
				/* It is OK to have just a WAN, without a LAN so break if the user does not want LAN. */
				break;
			}

			if ($lanif === "a") {
				$lanif = autodetect_interface("LAN", $fp);
			} else if (!array_key_exists($lanif, $iflist)) {
				printf(gettext("%sInvalid interface name '%s'%s"), "\n", $lanif, "\n");
				unset($lanif);
				continue;
			}
			$ifsmallist = trim(str_replace("  ", " ", str_replace($lanif, "", $ifsmallist)));
		} while (!$lanif);

		/* optional interfaces */
		$i = 0;
		$optif = array();

		if ($lanif <> "") {
			while (1) {
				if ($optif[$i]) {
					$i++;
				}
				$io = $i + 1;

				if ($config['interfaces']['opt' . $io]['descr']) {
					printf(gettext("%sOptional interface %s description found: %s"), "\n", $io, $config['interfaces']['opt' . $io]['descr']);
				}

				printf(gettext("%sEnter the Optional %s interface name or 'a' for auto-detection%s" .
					"(%s a or nothing if finished):%s"), "\n", $io, "\n", $ifsmallist, " ");

				$optif[$i] = chop(fgets($fp));

				if ($optif[$i]) {
					if ($optif[$i] === "a") {
						$ad = autodetect_interface(gettext("Optional") . " " . $io, $fp);
						if ($ad) {
							$optif[$i] = $ad;
						} else {
							unset($optif[$i]);
						}
					} else if (!array_key_exists($optif[$i], $iflist)) {
						printf(gettext("%sInvalid interface name '%s'%s"), "\n", $optif[$i], "\n");
						unset($optif[$i]);
						continue;
					}
					$ifsmallist = trim(str_replace("  ", " ", str_replace($optif[$i], "", $ifsmallist)));
				} else {
					unset($optif[$i]);
					break;
				}
			}
		}

		/* check for double assignments */
		$ifarr = array_merge(array($lanif, $wanif), $optif);

		for ($i = 0; $i < (count($ifarr)-1); $i++) {
			for ($j = ($i+1); $j < count($ifarr); $j++) {
				if ($ifarr[$i] == $ifarr[$j]) {
					echo <<<EOD

Error: The same interface name cannot be assigned twice!

EOD;
					fclose($fp);
					return;
				}
			}
		}

		echo "\n" . gettext("The interfaces will be assigned as follows:") . "\n\n";

		echo "WAN  -> " . $wanif . "\n";
		if ($lanif != "") {
			echo "LAN  -> " . $lanif . "\n";
		}
		for ($i = 0; $i < count($optif); $i++) {
			echo "OPT" . ($i+1) . " -> " . $optif[$i] . "\n";
		}

		echo "\n" . gettext("Do you want to proceed [y|n]?") . " ";
		$key = chop(fgets($fp));
	}

	if (in_array($key, array('y', 'Y'))) {
		if ($lanif) {
			if (is_array($config['interfaces']['lan'])) {
				$upints = pfSense_interface_listget(IFF_UP);
				if (in_array($config['interfaces']['lan']['if'], $upints))
					interface_bring_down('lan', true);
			}
			if (!is_array($config['interfaces']['lan'])) {
				$config['interfaces']['lan'] = array();
			}
			$config['interfaces']['lan']['if'] = $lanif;
			$config['interfaces']['lan']['enable'] = true;
		} elseif (!platform_booting() && !$auto_assign) {

			echo "\n" . gettext("You have chosen to remove the LAN interface.") . "\n";
			echo "\n" . gettext("Would you like to remove the LAN IP address and \nunload the interface now [y|n]?") . " ";

			if (strcasecmp(chop(fgets($fp)), "y") == 0) {
				if (isset($config['interfaces']['lan']) && $config['interfaces']['lan']['if']) {
					mwexec("/sbin/ifconfig " . $config['interfaces']['lan']['if'] . " delete");
				}
			}
			if (isset($config['interfaces']['lan'])) {
				unset($config['interfaces']['lan']);
			}
			if (isset($config['dhcpd']['lan'])) {
				unset($config['dhcpd']['lan']);
			}
			if (isset($config['dhcpdv6']['lan'])) {
				unset($config['dhcpdv6']['lan']);
			}
			if (isset($config['interfaces']['lan']['if'])) {
				unset($config['interfaces']['lan']['if']);
			}
			if (isset($config['interfaces']['wan']['blockpriv'])) {
				unset($config['interfaces']['wan']['blockpriv']);
			}
			if (isset($config['shaper'])) {
				unset($config['shaper']);
			}
			if (isset($config['ezshaper'])) {
				unset($config['ezshaper']);
			}
			if (isset($config['nat'])) {
				unset($config['nat']);
			}
		} else {
			if (isset($config['interfaces']['lan']['if'])) {
				mwexec("/sbin/ifconfig " . $config['interfaces']['lan']['if'] . " delete");
			}
			if (isset($config['interfaces']['lan'])) {
				unset($config['interfaces']['lan']);
			}
			if (isset($config['dhcpd']['lan'])) {
				unset($config['dhcpd']['lan']);
			}
			if (isset($config['interfaces']['lan']['if'])) {
				unset($config['interfaces']['lan']['if']);
			}
			if (isset($config['interfaces']['wan']['blockpriv'])) {
				unset($config['interfaces']['wan']['blockpriv']);
			}
			if (isset($config['shaper'])) {
				unset($config['shaper']);
			}
			if (isset($config['ezshaper'])) {
				unset($config['ezshaper']);
			}
			if (isset($config['nat'])) {
				unset($config['nat']);
			}
		}
		if (preg_match($g['wireless_regex'], $lanif)) {
			if (is_array($config['interfaces']['lan']) &&
			    !is_array($config['interfaces']['lan']['wireless'])) {
				$config['interfaces']['lan']['wireless'] = array();
			}
		} else {
			if (isset($config['interfaces']['lan'])) {
				unset($config['interfaces']['lan']['wireless']);
			}
		}

		if (is_array($config['interfaces']['wan'])) {
			$upints = pfSense_interface_listget(IFF_UP);
			if (in_array($config['interfaces']['wan']['if'], $upints))
				interface_bring_down('wan', true);
		}
		if (!is_array($config['interfaces']['wan'])) {
			$config['interfaces']['wan'] = array();
		}
		$config['interfaces']['wan']['if'] = $wanif;
		$config['interfaces']['wan']['enable'] = true;
		if (preg_match($g['wireless_regex'], $wanif)) {
			if (is_array($config['interfaces']['wan']) &&
			    !is_array($config['interfaces']['wan']['wireless'])) {
				$config['interfaces']['wan']['wireless'] = array();
			}
		} else {
			if (isset($config['interfaces']['wan'])) {
				unset($config['interfaces']['wan']['wireless']);
			}
		}

		for ($i = 0; $i < count($optif); $i++) {
			if (is_array($config['interfaces']['opt' . ($i+1)])) {
				$upints = pfSense_interface_listget(IFF_UP);
				if (in_array($config['interfaces']['opt' . ($i+1)]['if'], $upints))
					interface_bring_down('opt' . ($i+1), true);
			}
			if (!is_array($config['interfaces']['opt' . ($i+1)])) {
				$config['interfaces']['opt' . ($i+1)] = array();
			}

			$config['interfaces']['opt' . ($i+1)]['if'] = $optif[$i];

			/* wireless interface? */
			if (preg_match($g['wireless_regex'], $optif[$i])) {
				if (!is_array($config['interfaces']['opt' . ($i+1)]['wireless'])) {
					$config['interfaces']['opt' . ($i+1)]['wireless'] = array();
				}
			} else {
				unset($config['interfaces']['opt' . ($i+1)]['wireless']);
			}

			if (empty($config['interfaces']['opt' . ($i+1)]['descr'])) {
				$config['interfaces']['opt' . ($i+1)]['descr'] = "OPT" . ($i+1);
				unset($config['interfaces']['opt' . ($i+1)]['enable']);
			}
		}

		/* remove all other (old) optional interfaces */
		for (; isset($config['interfaces']['opt' . ($i+1)]); $i++) {
			unset($config['interfaces']['opt' . ($i+1)]);
		}

		printf(gettext("%sWriting configuration..."), "\n");
		write_config(gettext("Console assignment of interfaces"));
		printf(gettext("done.%s"), "\n");

		fclose($fp);

		if (platform_booting()) {
			return;
		}

		echo gettext("One moment while the settings are reloading...");
		echo gettext(" done!") . "\n";

		touch("{$g['tmp_path']}/assign_complete");

	}
}

function autodetect_interface($ifname, $fp) {
	$iflist_prev = get_interface_list("media");
	echo <<<EOD

Connect the {$ifname} interface now and make sure that the link is up.
Then press ENTER to continue.

EOD;
	fgets($fp);
	$iflist = get_interface_list("media");

	foreach ($iflist_prev as $ifn => $ifa) {
		if (!$ifa['up'] && $iflist[$ifn]['up']) {
			printf(gettext("Detected link-up on interface %s.%s"), $ifn, "\n");
			return $ifn;
		}
	}

	printf(gettext("No link-up detected.%s"), "\n");

	return null;
}

function interfaces_setup() {
	global $iflist, $config, $g, $fp;

	$iflist = get_interface_list();
}

function vlan_setup() {
	global $iflist, $config, $g, $fp;

	$iflist = get_interface_list();

	if (is_array($config['vlans']['vlan']) && count($config['vlans']['vlan'])) {
		echo "\n" . gettext("WARNING: all existing VLANs will be cleared if you proceed!") . "\n";
		echo "\n" . gettext("Do you want to proceed [y|n]?") . " ";

		if (strcasecmp(chop(fgets($fp)), "y") != 0) {
			return;
		}
	}

	$config['vlans']['vlan'] = array();
	echo "\n";

	$vlanif = 0;

	while (1) {
		$vlan = array();

		echo "\n\n" . gettext("VLAN Capable interfaces:") . "\n\n";
		if (!is_array($iflist)) {
			echo gettext("No interfaces found!") . "\n";
		} else {
			$vlan_capable = 0;
			foreach ($iflist as $iface => $ifa) {
				if (is_jumbo_capable($iface)) {
					echo sprintf("% -8s%s%s\n", $iface, $ifa['mac'],
						$ifa['up'] ? "   (up)" : "");
					$vlan_capable++;
				}
			}
		}

		if ($vlan_capable == 0) {
			echo gettext("No VLAN capable interfaces detected.") . "\n";
			return;
		}

		echo "\n" . gettext("Enter the parent interface name for the new VLAN (or nothing if finished):") . " ";
		$vlan['if'] = chop(fgets($fp));

		if ($vlan['if']) {
			if (!array_key_exists($vlan['if'], $iflist) or
			    !is_jumbo_capable($vlan['if'])) {
				printf(gettext("%sInvalid interface name '%s'%s"), "\n", $vlan['if'], "\n");
				continue;
			}
		} else {
			break;
		}

		echo gettext("Enter the VLAN tag (1-4094):") . " ";
		$vlan['tag'] = chop(fgets($fp));
		$vlan['vlanif'] = "{$vlan['if']}_vlan{$vlan['tag']}";
		if (!is_numericint($vlan['tag']) || ($vlan['tag'] < 1) || ($vlan['tag'] > 4094)) {
			printf(gettext("%sInvalid VLAN tag '%s'%s"), "\n", $vlan['tag'], "\n");
			continue;
		}

		if (is_array($config['vlans']['vlan'])) {
			foreach ($config['vlans']['vlan'] as $existingvlan) {
				if ($vlan['if'] == $existingvlan['if'] && $vlan['tag'] == $existingvlan['tag']) {
					printf("\n\n" . gettext("This parent interface and VLAN already created."));
					continue 2;
				}
			}
		}
		$config['vlans']['vlan'][] = $vlan;
		$vlanif++;
	}
}

function check_for_alternate_interfaces() {
	global $config;

	// If the WAN and/or LAN devices in the factory default config do not exist,
	// then look for alternate devices.
	// This lets many systems boot a factory default config without being
	// forced to do interface assignment on the console.

	$specplatform = system_identify_specific_platform();
	$default_device = array();

	// If we recognise the platform, then specify the devices directly.
	switch ($specplatform['name']) {
		case 'alix':
			$default_device['wan'] = "vr1";
			$default_device['lan'] = "vr0";
			break;
		case 'APU':
			$default_device['wan'] = "re1";
			$default_device['lan'] = "re2";
			break;
		case 'RCC-VE':
			$default_device['wan'] = "igb0";
			$default_device['lan'] = "igb1";
			break;
		default:
			$default_device['wan'] = "";
			$default_device['lan'] = "";
			break;
	}

	// Other common device names can be put here and will be looked for
	// if the system was not one of the known platforms.
	$other_devices_arr['wan'] = array("vr1", "re1", "igb0", "em0");
	$other_devices_arr['lan'] = array("vr0", "re2", "igb1", "em1");
	$interface_assignment_changed = false;

	foreach ($other_devices_arr as $ifname => $other_devices) {
		if (!does_interface_exist($config['interfaces'][$ifname]['if'])) {
			if (does_interface_exist($default_device[$ifname])) {
				$config['interfaces'][$ifname]['if'] = $default_device[$ifname];
				$interface_assignment_changed = true;
			} else {
				foreach ($other_devices as $other_device) {
					if (does_interface_exist($other_device)) {
						$config['interfaces'][$ifname]['if'] = $other_device;
						$interface_assignment_changed = true;
						break;
					}
				}
			}
		}
	}

	if ($interface_assignment_changed) {
		write_config("Factory default boot detected WAN " . $config['interfaces']['wan']['if'] . " and LAN " . $config['interfaces']['lan']['if']);
	}
}

?>
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