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Set temporary bogon (RFC 5737) IPv4 addresses when initialising PPP interfaces during boot to work round mpd5 IPv6CP issue causing random IPv6 interface identifiers

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Details at https://forum.pfsense.org/index.php?topic=101967.msg570519#msg570519 .
This commit is contained in:
David Wood 2016-01-05 13:05:35 +00:00
parent 918b19a62c
commit e68cb72f3e
1 changed files with 23 additions and 13 deletions
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36
etc/inc/interfaces.inc
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@ -1818,17 +1818,24 @@ EOD;
unlink("{$g['var_path']}/spool/lock/LCK..{$port}");
}
/* Set temporary bogon (RFC 5737) IPv4 address to work round mpd5 IPv6CP issue causing */
/* Set temporary bogon (RFC 5737) IPv4 addresses to work round mpd5 IPv6CP issue causing */
/* random IPv6 interface identifier during boot. More details at */
/* https://forum.pfsense.org/index.php?topic=101967.msg570519#msg570519 */
/* N.B. The current work round only supports PPPoE */
$tempaddr = false;
if (platform_booting() && $type == "pppoe" && is_array($ports) && !empty($ports[0])) {
$tempaddr = true;
$tempaddr_iface = get_real_interface($ports[0]);
if (!empty($tempaddr_iface)) {
mwexec("/sbin/ifconfig " . escapeshellarg($tempaddr_iface) . " inet 192.0.2.248/31 alias", true);
if (platform_booting() && is_array($config['interfaces'])) {
$count = 0;
foreach ($config['interfaces'] as $tempifacename => $tempiface) {
if ((isset($tempiface['if'])) && (isset($tempiface['ipaddr']) || isset($tempiface['ipaddrv6'])) && !interface_isppp_type($tempifacename)) {
$tempaddr[$count]['if'] = $tempiface['if'];
$tempaddr[$count]['ipaddr'] = '192.0.2.' . strval (10 + ($count * 2)) . '/31';
mwexec('/sbin/ifconfig ' . escapeshellarg($tempaddr[$count]['if']) . ' inet ' . escapeshellarg($tempaddr[$count]['ipaddr']) . ' alias', true);
$count++;
}
// Maximum /31 is is x.y.z.254/31
if ($count > 122) {
break;
}
}
unset($count);
}
/* fire up mpd */
@ -1851,12 +1858,15 @@ EOD;
$i++;
}
/* Remove work round temporary address */
if ($tempaddr && !empty($tempaddr_iface)) {
mwexec("/sbin/ifconfig " . escapeshellarg($tempaddr_iface) . " inet 192.0.2.248/31 -alias", true);
unset ($tempaddr_iface);
/* Remove all temporary bogon IPv4 addresses */
if (is_array($tempaddr)) {
foreach ($tempaddr as $tempiface) {
if (isset($tempiface['if']) && isset($tempiface['ipaddr'])) {
mwexec('/sbin/ifconfig ' . escapeshellarg($tempiface['if']) . ' inet ' . escapeshellarg($tempiface['ipaddr']) . ' -alias', true);
}
}
unset ($tempaddr);
}
unset ($tempaddr);
/* we only support the 3gstats.php for huawei modems for now. Will add more later. */
/* We should be able to launch the right version for each modem */