diff options
Diffstat (limited to 'packet')
| -rw-r--r-- | packet/bgp.go | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/packet/bgp.go b/packet/bgp.go index 56cbfcd2..32ef2d32 100644 --- a/packet/bgp.go +++ b/packet/bgp.go @@ -2527,20 +2527,6 @@ func (v *FlowSpecComponentItem) Serialize() ([]byte, error) { } order := uint32(math.Log2(float64(v.Len()))) - // we don't know if not initialized properly or initialized to - // zero... - if order == 0 { - order = func() uint32 { - for i := 0; i < 3; i++ { - if v.Value < (1 << ((1 << uint(i)) * 8)) { - return uint32(i) - } - } - // return invalid order - return 4 - }() - } - buf := make([]byte, 1+(1<<order)) buf[0] = byte(uint32(v.Op) | order<<4) switch order { @@ -2559,7 +2545,26 @@ func (v *FlowSpecComponentItem) Serialize() ([]byte, error) { } func NewFlowSpecComponentItem(op int, value int) *FlowSpecComponentItem { - return &FlowSpecComponentItem{op, value} + v := &FlowSpecComponentItem{op, value} + order := uint32(math.Log2(float64(v.Len()))) + // we don't know if not initialized properly or initialized to + // zero... + if order == 0 { + order = func() uint32 { + for i := 0; i < 3; i++ { + if v.Value < (1 << ((1 << uint(i)) * 8)) { + return uint32(i) + } + } + // return invalid order + return 4 + }() + } + if order > 3 { + return nil + } + v.Op = int(uint32(v.Op) | order<<4) + return v } type FlowSpecComponent struct { |