public async void Update(LabelSwitchedPath.LabelSwitchedPath LabelSwitchedPath)
{
while (this.locked)
{
await Task.Delay(1);
}
this.locked = true;
if (LabelSwitchedPath.IsChild)
{
/* Id is based on Tunnel Sender and Receiver addresses, this does not work with JunOS implementation of
* PCRept message that sends LSPs with Remove flag set and missing Tunnel Sender and Receiver addresses = "0.0.0.0"
*
* var parent = this.HierarchicalLabelSwitchedPaths.Find(h => h.Id == LabelSwitchedPath.ParentId);
*/
var parentName = LabelSwitchedPath.SymbolicPathName.Split("/".ToCharArray())[0];
var parent = this.HierarchicalLabelSwitchedPaths.Find(h => h.SymbolicPathName == parentName);
/* Id is based on Tunnel Sender and Receiver addresses, this does not work with JunOS implementation of
* PCRept message that sends LSPs with Remove flag set and missing Tunnel Sender and Receiver addresses = "0.0.0.0"
*
* var existingLabelSwitchedPath = parent.Children.Find(e => e.Id == LabelSwitchedPath.Id);
*/
var existingLabelSwitchedPath = parent.Children.Find(e => e.SymbolicPathName == LabelSwitchedPath.SymbolicPathName);
if (existingLabelSwitchedPath == null)
{
// Check if LSP needs to be removed
if (LabelSwitchedPath.Remove.HasValue && LabelSwitchedPath.Remove.Value)
{
// Do not add if remove is true. Topology is out of sync.
}
else
{
parent.Children.Insert(0, LabelSwitchedPath);
}
}
else
{
// Check if LSP needs to be removed
if (LabelSwitchedPath.Remove.HasValue && LabelSwitchedPath.Remove.Value)
{
parent.Children.RemoveAt(parent.Children.IndexOf(existingLabelSwitchedPath));
}
else
{
LabelSwitchedPath.ComputedExplicitRouteObjectBaseline = existingLabelSwitchedPath.ComputedExplicitRouteObjectBaseline.DeepClone(); // Move previously computed RRO baseline to updated LSP
LabelSwitchedPath.ComputedExplicitRouteObject = existingLabelSwitchedPath.ComputedExplicitRouteObject.DeepClone(); // Move previously computed RRO to updated LSP
parent.Children[parent.Children.IndexOf(existingLabelSwitchedPath)] = LabelSwitchedPath;
}
}
parent.Children = parent.Children.OrderBy(o => o.SymbolicPathName).ToList();
if (parent.Children.Count == 0)
{
this.HierarchicalLabelSwitchedPaths.RemoveAt(this.HierarchicalLabelSwitchedPaths.IndexOf(parent));
}
}
else
{
var existingLabelSwitchedPath =
LabelSwitchedPaths.Find(l => l.IPv4TunnelSenderAddress == LabelSwitchedPath.IPv4TunnelSenderAddress &&
l.IPv4TunnelEndpointAddress == LabelSwitchedPath.IPv4TunnelEndpointAddress);
if (existingLabelSwitchedPath == null)
{
LabelSwitchedPaths.Add(LabelSwitchedPath);
}
else
{
LabelSwitchedPath.ComputedExplicitRouteObjectBaseline = existingLabelSwitchedPath.ComputedExplicitRouteObjectBaseline.DeepClone(); // Move previously computed RRO baseline to updated LSP
LabelSwitchedPath.ComputedExplicitRouteObject = existingLabelSwitchedPath.ComputedExplicitRouteObject.DeepClone(); // Move previously computed RRO to updated LSP
LabelSwitchedPaths[LabelSwitchedPaths.IndexOf(existingLabelSwitchedPath)] = LabelSwitchedPath;
}
}
this.locked = false;
}
public static string ToJson(this LabelSwitchedPath self) => JsonConvert.SerializeObject(self, shift.yggdrasil2.Topology.MPLS.LabelSwitchedPath.Converter.Settings);
private async void ProcessSHIFTPCEPMessage(JObject data)
{
var symbolicPathName = (string)data["lsp"]["symbolic_path_name"];
if (!string.IsNullOrWhiteSpace(symbolicPathName))
{
var ipv4_tunnel_sender_address = (string)data["lsp"]["ipv4_tunnel_sender_address"];
var ipv4_tunnel_endpoint_address = (string)data["lsp"]["ipv4_tunnel_endpoint_address"];
// Gets the PCC parameter from the local node database instead of the LSP property, SHIFT PCEP listener is behind Docker Swarm's NAT(PAT).
var ingress_node = this.Nodes.Find(n => n.IPv4RouterIdentifier == ipv4_tunnel_sender_address);
string pcc = string.Empty;
if (ingress_node != null)
{
pcc = ingress_node.PCC;
}
if (symbolicPathName.Contains("/"))
{
var hierarchicalSymbolicPathName = symbolicPathName.Split("/".ToCharArray());
HierarchicalLabelSwitchedPath.HierarchicalLabelSwitchedPath parent = new HierarchicalLabelSwitchedPath.HierarchicalLabelSwitchedPath(hierarchicalSymbolicPathName[0])
{
IPv4TunnelSenderAddress = ipv4_tunnel_sender_address,
IPv4TunnelEndpointAddress = ipv4_tunnel_endpoint_address
};
this.Update(parent);
LabelSwitchedPath.LabelSwitchedPath child = new LabelSwitchedPath.LabelSwitchedPath(parent.Id)
{
PCC = pcc,
IPv4TunnelSenderAddress = ipv4_tunnel_sender_address,
IPv4TunnelEndpointAddress = ipv4_tunnel_endpoint_address,
SymbolicPathName = symbolicPathName,
TunnelIdentifier = (string)data["lsp"]["tunnel_id"],
ExtendedTunnelIdentifier = (string)data["lsp"]["extended_tunnel_id"],
ExtendedTunnelIdentifierTunnelId = (string)data["lsp"]["extended_tunnel_id"],
LspIdentifier = (string)data["lsp"]["lsp_id"],
ReservedBandwidth = (long?)data["bandwidth"],
Administrative = (bool)data["lsp"]["flags"]["administrative"],
Delegate = (bool)data["lsp"]["flags"]["delegate"],
Operational = (bool)data["lsp"]["flags"]["operational"],
Remove = (bool)data["lsp"]["flags"]["remove"],
Sync = (bool)data["lsp"]["flags"]["sync"]
};
if (data["rro"] != null)
{
List <string> hops = new List <string>();
foreach (var hop in data["rro"])
{
hops.Add((string)hop["address"]);
}
child.RecordRouteObject = hops.ToArray();
}
this.Update(child);
}
else
{
LabelSwitchedPath.LabelSwitchedPath l = new LabelSwitchedPath.LabelSwitchedPath(null)
{
PCC = pcc,
IPv4TunnelSenderAddress = ipv4_tunnel_sender_address,
IPv4TunnelEndpointAddress = ipv4_tunnel_endpoint_address,
SymbolicPathName = symbolicPathName,
TunnelIdentifier = (string)data["lsp"]["tunnel_id"],
ExtendedTunnelIdentifier = (string)data["lsp"]["extended_tunnel_id"],
ExtendedTunnelIdentifierTunnelId = (string)data["lsp"]["extended_tunnel_id"],
LspIdentifier = (string)data["lsp"]["lsp_id"],
ReservedBandwidth = (long?)data["bandwidth"],
Administrative = (bool)data["lsp"]["flags"]["administrative"],
Delegate = (bool)data["lsp"]["flags"]["delegate"],
Operational = (bool)data["lsp"]["flags"]["operational"],
Remove = (bool)data["lsp"]["flags"]["remove"],
Sync = (bool)data["lsp"]["flags"]["sync"]
};
if (data["lsp"]["rro"] != null)
{
List <string> hops = new List <string>();
foreach (var hop in data["lsp"]["rro"])
{
hops.Add((string)hop["address"]);
}
l.RecordRouteObject = hops.ToArray();
}
this.Update(l);
}
}
}
