diff options
Diffstat (limited to 'internal')
-rw-r--r-- | internal/pkg/table/adj.go | 9 | ||||
-rw-r--r-- | internal/pkg/table/destination.go | 2 | ||||
-rw-r--r-- | internal/pkg/table/path.go | 10 | ||||
-rw-r--r-- | internal/pkg/table/table.go | 8 |
4 files changed, 26 insertions, 3 deletions
diff --git a/internal/pkg/table/adj.go b/internal/pkg/table/adj.go index acb2c07b..d434c938 100644 --- a/internal/pkg/table/adj.go +++ b/internal/pkg/table/adj.go @@ -53,6 +53,7 @@ func (adj *AdjRib) Update(pathList []*Path) { adj.accepted[rf]-- } } + path.SetDropped(true) } else { if found { if old.IsAsLooped() && !path.IsAsLooped() { @@ -111,7 +112,9 @@ func (adj *AdjRib) Drop(rfList []bgp.RouteFamily) []*Path { for _, rf := range rfList { if _, ok := adj.table[rf]; ok { for _, p := range adj.table[rf] { - l = append(l, p.Clone(true)) + w := p.Clone(true) + w.SetDropped(true) + l = append(l, w) } adj.table[rf] = make(map[string]*Path) adj.accepted[rf] = 0 @@ -130,7 +133,9 @@ func (adj *AdjRib) DropStale(rfList []bgp.RouteFamily) []*Path { if !p.IsAsLooped() { adj.accepted[rf]-- } - pathList = append(pathList, p.Clone(true)) + w := p.Clone(true) + w.SetDropped(true) + pathList = append(pathList, w) } } } diff --git a/internal/pkg/table/destination.go b/internal/pkg/table/destination.go index 2cb902e1..4adc6290 100644 --- a/internal/pkg/table/destination.go +++ b/internal/pkg/table/destination.go @@ -265,7 +265,7 @@ func (dest *Destination) Calculate(newPath *Path) *Update { if newPath.IsWithdraw { p := dest.explicitWithdraw(newPath) - if p != nil { + if p != nil && newPath.IsDropped() { if id := p.GetNlri().PathLocalIdentifier(); id != 0 { dest.localIdMap.Unflag(uint(id)) } diff --git a/internal/pkg/table/path.go b/internal/pkg/table/path.go index 743f1c1f..32616d2e 100644 --- a/internal/pkg/table/path.go +++ b/internal/pkg/table/path.go @@ -138,6 +138,8 @@ type Path struct { dels []bgp.BGPAttrType attrsHash uint32 aslooped bool + // doesn't exist in the adj + dropped bool // For BGP Nexthop Tracking, this field shows if nexthop is invalidated by IGP. IsNexthopInvalid bool @@ -388,6 +390,14 @@ func (path *Path) SetAsLooped(y bool) { path.aslooped = y } +func (path *Path) IsDropped() bool { + return path.dropped +} + +func (path *Path) SetDropped(y bool) { + path.dropped = y +} + func (path *Path) IsLLGRStale() bool { for _, c := range path.GetCommunities() { if c == uint32(bgp.COMMUNITY_LLGR_STALE) { diff --git a/internal/pkg/table/table.go b/internal/pkg/table/table.go index c7e505cc..9a9bdd8b 100644 --- a/internal/pkg/table/table.go +++ b/internal/pkg/table/table.go @@ -17,6 +17,7 @@ package table import ( "fmt" + "math/bits" "net" "strings" "unsafe" @@ -118,6 +119,13 @@ func (t *Table) deleteRTCPathsByVrf(vrf *Vrf, vrfs map[string]*Vrf) []*Path { } func (t *Table) deleteDest(dest *Destination) { + count := 0 + for _, v := range dest.localIdMap.bitmap { + count += bits.OnesCount64(v) + } + if len(dest.localIdMap.bitmap) != 0 && count != 1 { + return + } destinations := t.GetDestinations() delete(destinations, t.tableKey(dest.GetNlri())) if len(destinations) == 0 { |