diff options
Diffstat (limited to 'table/destination.go')
| -rw-r--r-- | table/destination.go | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/table/destination.go b/table/destination.go index 78c54ba0..b7a79788 100644 --- a/table/destination.go +++ b/table/destination.go @@ -111,13 +111,16 @@ func NewPeerInfo(g *config.Global, p *config.Neighbor) *PeerInfo { } type Destination struct { - routeFamily bgp.RouteFamily - nlri bgp.AddrPrefixInterface - oldKnownPathList paths - knownPathList paths - withdrawList paths - newPathList paths - RadixKey string + routeFamily bgp.RouteFamily + nlri bgp.AddrPrefixInterface + oldKnownPathList paths + knownPathList paths + withdrawList paths + newPathList paths + WithdrawnList paths + ImplicitWithdrawnList paths + UpdatedPathList paths + RadixKey string } func NewDestination(nlri bgp.AddrPrefixInterface) *Destination { @@ -236,10 +239,11 @@ func (dd *Destination) validatePath(path *Path) { // paths from known paths. Also, adds new paths to known paths. func (dest *Destination) Calculate() { dest.oldKnownPathList = dest.knownPathList + dest.UpdatedPathList = dest.newPathList // First remove the withdrawn paths. - dest.explicitWithdraw() + dest.WithdrawnList = dest.explicitWithdraw() // Do implicit withdrawal - dest.implicitWithdraw() + dest.ImplicitWithdrawnList = dest.implicitWithdraw() // Collect all new paths into known paths. dest.knownPathList = append(dest.knownPathList, dest.newPathList...) // Clear new paths as we copied them. @@ -352,8 +356,9 @@ func (dest *Destination) explicitWithdraw() paths { // // Known paths will no longer have paths whose new version is present in // new paths. -func (dest *Destination) implicitWithdraw() { +func (dest *Destination) implicitWithdraw() paths { newKnownPaths := make([]*Path, 0, len(dest.knownPathList)) + implicitWithdrawn := make([]*Path, 0, len(dest.knownPathList)) for _, path := range dest.knownPathList { found := false for _, newPath := range dest.newPathList { @@ -375,11 +380,14 @@ func (dest *Destination) implicitWithdraw() { break } } - if !found { + if found { + implicitWithdrawn = append(implicitWithdrawn, path) + } else { newKnownPaths = append(newKnownPaths, path) } } dest.knownPathList = newKnownPaths + return implicitWithdrawn } func (dest *Destination) computeKnownBestPath() (*Path, BestPathReason, error) { |