mirror of https://github.com/slackhq/nebula.git
208 lines
6.2 KiB
Go
208 lines
6.2 KiB
Go
package nebula
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import (
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"net"
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"testing"
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"github.com/slackhq/nebula/test"
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"github.com/stretchr/testify/assert"
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)
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func TestHostMap_MakePrimary(t *testing.T) {
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l := test.NewLogger()
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hm := NewHostMap(
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l, "test",
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&net.IPNet{
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IP: net.IP{10, 0, 0, 1},
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Mask: net.IPMask{255, 255, 255, 0},
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},
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[]*net.IPNet{},
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)
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f := &Interface{}
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h1 := &HostInfo{vpnIp: 1, localIndexId: 1}
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h2 := &HostInfo{vpnIp: 1, localIndexId: 2}
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h3 := &HostInfo{vpnIp: 1, localIndexId: 3}
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h4 := &HostInfo{vpnIp: 1, localIndexId: 4}
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hm.unlockedAddHostInfo(h4, f)
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hm.unlockedAddHostInfo(h3, f)
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hm.unlockedAddHostInfo(h2, f)
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hm.unlockedAddHostInfo(h1, f)
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// Make sure we go h1 -> h2 -> h3 -> h4
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prim, _ := hm.QueryVpnIp(1)
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assert.Equal(t, h1.localIndexId, prim.localIndexId)
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assert.Equal(t, h2.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h1.localIndexId, h2.prev.localIndexId)
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assert.Equal(t, h3.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h2.localIndexId, h3.prev.localIndexId)
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assert.Equal(t, h4.localIndexId, h3.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h4.prev.localIndexId)
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assert.Nil(t, h4.next)
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// Swap h3/middle to primary
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hm.MakePrimary(h3)
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// Make sure we go h3 -> h1 -> h2 -> h4
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h3.localIndexId, prim.localIndexId)
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assert.Equal(t, h1.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h2.localIndexId, h1.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h1.prev.localIndexId)
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assert.Equal(t, h4.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h1.localIndexId, h2.prev.localIndexId)
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assert.Equal(t, h2.localIndexId, h4.prev.localIndexId)
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assert.Nil(t, h4.next)
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// Swap h4/tail to primary
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hm.MakePrimary(h4)
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// Make sure we go h4 -> h3 -> h1 -> h2
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h4.localIndexId, prim.localIndexId)
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assert.Equal(t, h3.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h1.localIndexId, h3.next.localIndexId)
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assert.Equal(t, h4.localIndexId, h3.prev.localIndexId)
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assert.Equal(t, h2.localIndexId, h1.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h1.prev.localIndexId)
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assert.Equal(t, h1.localIndexId, h2.prev.localIndexId)
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assert.Nil(t, h2.next)
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// Swap h4 again should be no-op
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hm.MakePrimary(h4)
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// Make sure we go h4 -> h3 -> h1 -> h2
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h4.localIndexId, prim.localIndexId)
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assert.Equal(t, h3.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h1.localIndexId, h3.next.localIndexId)
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assert.Equal(t, h4.localIndexId, h3.prev.localIndexId)
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assert.Equal(t, h2.localIndexId, h1.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h1.prev.localIndexId)
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assert.Equal(t, h1.localIndexId, h2.prev.localIndexId)
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assert.Nil(t, h2.next)
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}
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func TestHostMap_DeleteHostInfo(t *testing.T) {
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l := test.NewLogger()
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hm := NewHostMap(
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l, "test",
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&net.IPNet{
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IP: net.IP{10, 0, 0, 1},
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Mask: net.IPMask{255, 255, 255, 0},
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},
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[]*net.IPNet{},
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)
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f := &Interface{}
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h1 := &HostInfo{vpnIp: 1, localIndexId: 1}
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h2 := &HostInfo{vpnIp: 1, localIndexId: 2}
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h3 := &HostInfo{vpnIp: 1, localIndexId: 3}
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h4 := &HostInfo{vpnIp: 1, localIndexId: 4}
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h5 := &HostInfo{vpnIp: 1, localIndexId: 5}
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h6 := &HostInfo{vpnIp: 1, localIndexId: 6}
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hm.unlockedAddHostInfo(h6, f)
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hm.unlockedAddHostInfo(h5, f)
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hm.unlockedAddHostInfo(h4, f)
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hm.unlockedAddHostInfo(h3, f)
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hm.unlockedAddHostInfo(h2, f)
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hm.unlockedAddHostInfo(h1, f)
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// h6 should be deleted
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assert.Nil(t, h6.next)
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assert.Nil(t, h6.prev)
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_, err := hm.QueryIndex(h6.localIndexId)
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assert.Error(t, err)
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// Make sure we go h1 -> h2 -> h3 -> h4 -> h5
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prim, _ := hm.QueryVpnIp(1)
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assert.Equal(t, h1.localIndexId, prim.localIndexId)
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assert.Equal(t, h2.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h1.localIndexId, h2.prev.localIndexId)
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assert.Equal(t, h3.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h2.localIndexId, h3.prev.localIndexId)
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assert.Equal(t, h4.localIndexId, h3.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h4.prev.localIndexId)
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assert.Equal(t, h5.localIndexId, h4.next.localIndexId)
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assert.Equal(t, h4.localIndexId, h5.prev.localIndexId)
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assert.Nil(t, h5.next)
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// Delete primary
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hm.DeleteHostInfo(h1)
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assert.Nil(t, h1.prev)
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assert.Nil(t, h1.next)
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// Make sure we go h2 -> h3 -> h4 -> h5
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h2.localIndexId, prim.localIndexId)
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assert.Equal(t, h3.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h3.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h2.localIndexId, h3.prev.localIndexId)
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assert.Equal(t, h4.localIndexId, h3.next.localIndexId)
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assert.Equal(t, h3.localIndexId, h4.prev.localIndexId)
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assert.Equal(t, h5.localIndexId, h4.next.localIndexId)
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assert.Equal(t, h4.localIndexId, h5.prev.localIndexId)
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assert.Nil(t, h5.next)
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// Delete in the middle
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hm.DeleteHostInfo(h3)
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assert.Nil(t, h3.prev)
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assert.Nil(t, h3.next)
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// Make sure we go h2 -> h4 -> h5
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h2.localIndexId, prim.localIndexId)
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assert.Equal(t, h4.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h4.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h2.localIndexId, h4.prev.localIndexId)
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assert.Equal(t, h5.localIndexId, h4.next.localIndexId)
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assert.Equal(t, h4.localIndexId, h5.prev.localIndexId)
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assert.Nil(t, h5.next)
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// Delete the tail
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hm.DeleteHostInfo(h5)
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assert.Nil(t, h5.prev)
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assert.Nil(t, h5.next)
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// Make sure we go h2 -> h4
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h2.localIndexId, prim.localIndexId)
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assert.Equal(t, h4.localIndexId, prim.next.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Equal(t, h4.localIndexId, h2.next.localIndexId)
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assert.Equal(t, h2.localIndexId, h4.prev.localIndexId)
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assert.Nil(t, h4.next)
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// Delete the head
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hm.DeleteHostInfo(h2)
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assert.Nil(t, h2.prev)
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assert.Nil(t, h2.next)
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// Make sure we only have h4
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prim, _ = hm.QueryVpnIp(1)
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assert.Equal(t, h4.localIndexId, prim.localIndexId)
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assert.Nil(t, prim.prev)
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assert.Nil(t, prim.next)
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assert.Nil(t, h4.next)
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// Delete the only item
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hm.DeleteHostInfo(h4)
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assert.Nil(t, h4.prev)
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assert.Nil(t, h4.next)
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// Make sure we have nil
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prim, _ = hm.QueryVpnIp(1)
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assert.Nil(t, prim)
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}
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