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Add IPv6 route management for Windows client

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This commit is contained in:
domosekai
2021-07-28 15:50:23 +08:00
parent 5a05e7a249
commit ce0591d924
3 changed files with 411 additions and 59 deletions
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61
src/Cedar/VLanWin32.c
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@ -224,8 +224,7 @@ void RouteTrackingMain(SESSION *s)
}
// Search for the default gateway
if (IPToUINT(&e->DestIP) == 0 &&
IPToUINT(&e->DestMask) == 0)
if (IsZeroIP(&e->DestIP) && IsZeroIP(&e->DestMask))
{
Debug("e->InterfaceID = %u, t->VLanInterfaceId = %u\n",
e->InterfaceID, t->VLanInterfaceId);
@ -236,30 +235,34 @@ void RouteTrackingMain(SESSION *s)
is_vlan_want_to_be_default_gateway = true;
vlan_default_gateway_metric = e->Metric;
if (vlan_default_gateway_metric >= 2 &&
// PPP route fix (IPv4 only)
if (IsIP4(&e->DestIP))
{
if (vlan_default_gateway_metric >= 2 &&
t->OldDefaultGatewayMetric == (vlan_default_gateway_metric - 1))
{
// Restore because the PPP server rewrites
// the routing table selfishly
DeleteRouteEntry(e);
e->Metric--;
AddRouteEntry(e);
Debug("** Restore metric destroyed by PPP.\n");
{
// Restore because the PPP server rewrites
// the routing table selfishly
DeleteRouteEntry(e);
e->Metric--;
AddRouteEntry(e);
Debug("** Restore metric destroyed by PPP.\n");
any_modified = true;
any_modified = true;
}
// Keep this entry
if (t->DefaultGatewayByVLan != NULL)
{
// Delete if there is one added last time
FreeRouteEntry(t->DefaultGatewayByVLan);
}
t->DefaultGatewayByVLan = ZeroMalloc(sizeof(ROUTE_ENTRY));
Copy(t->DefaultGatewayByVLan, e, sizeof(ROUTE_ENTRY));
t->OldDefaultGatewayMetric = vlan_default_gateway_metric;
}
// Keep this entry
if (t->DefaultGatewayByVLan != NULL)
{
// Delete if there is one added last time
FreeRouteEntry(t->DefaultGatewayByVLan);
}
t->DefaultGatewayByVLan = ZeroMalloc(sizeof(ROUTE_ENTRY));
Copy(t->DefaultGatewayByVLan, e, sizeof(ROUTE_ENTRY));
t->OldDefaultGatewayMetric = vlan_default_gateway_metric;
}
else
{
@ -372,8 +375,7 @@ void RouteTrackingMain(SESSION *s)
if (e->InterfaceID != t->VLanInterfaceId)
{
if (IPToUINT(&e->DestIP) == 0 &&
IPToUINT(&e->DestMask) == 0)
if (IsZeroIP(&e->DestIP) && IsZeroIP(&e->DestMask))
{
char str[64];
// Default gateway is found
@ -633,11 +635,6 @@ void RouteTrackingStart(SESSION *s)
MsFreeAdapter(a);
}
}
else
{
// For Win9x
Win32RenewDhcp9x(if_id);
}
// Clear the DNS cache
Win32FlushDnsCache();
@ -782,12 +779,12 @@ void RouteTrackingStop(SESSION *s, ROUTE_TRACKING *t)
// If the restoring routing entry is a default gateway and
// the existing routing table contains another default gateway
// on the interface, give up restoring the entry
if (IPToUINT(&e->DestIP) == 0 && IPToUINT(&e->DestMask) == 0)
if (IsZeroIP(&e->DestIP) && IsZeroIP(&e->DestMask))
{
for (i = 0;i < table->NumEntry;i++)
{
ROUTE_ENTRY *r = table->Entry[i];
if (IPToUINT(&r->DestIP) == 0 && IPToUINT(&r->DestMask) == 0)
if (IsZeroIP(&r->DestIP) && IsZeroIP(&r->DestMask))
{
if (r->InterfaceID == e->InterfaceID)
{