mirror of
https://github.com/openziti/ziti.git
synced 2026-10-12 07:18:36 +00:00
Cam Otts
725afe13de
* added allow traversal flag * Added test to verify a single router connection that is marked untraversable fails path creating * Updated default cost to be one step above the threshold to avoid overflow. * Updated checks to only care about middle routers. Fixed relevant unit tests and added test with untraversable middle router. * Refactor allowTraversal to be flipped to noTraversal * default noTraversal to false
137 lines
3.1 KiB
Go
137 lines
3.1 KiB
Go
/*
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Copyright NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package network
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import (
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"fmt"
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"os"
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"sort"
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"github.com/openziti/fabric/controller/db"
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"github.com/openziti/foundation/transport"
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"github.com/openziti/foundation/transport/tcp"
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)
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func newTestEntityHelper(ctx *db.TestContext, network *Network) *testEntityHelper {
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addr := "tcp:0.0.0.0:0"
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transportAddr, err := tcp.AddressParser{}.Parse(addr)
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ctx.NoError(err)
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return &testEntityHelper{
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network: network,
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transportAddr: transportAddr,
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}
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}
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type testEntityHelper struct {
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network *Network
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routerIdx int
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linkIdx int
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transportAddr transport.Address
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}
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func (self *testEntityHelper) addTestRouter() *Router {
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router := newRouterForTest(fmt.Sprintf("router-%03d", self.routerIdx), "", self.transportAddr, nil, 0, false)
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self.network.Routers.markConnected(router)
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self.routerIdx++
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return router
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}
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func (self *testEntityHelper) discardControllerEvents() {
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for {
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select {
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case <-self.network.routerChanged:
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case <-self.network.linkChanged:
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default:
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return
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}
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}
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}
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// these debug methods can be used to dump routing evaluation steps to a file for easier analysis
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func initDebug(path string) {
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f, err := os.Create(path)
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if err != nil {
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panic(err)
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}
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dbg = &debugger{f: f}
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}
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func stopDebug() {
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if err := dbg.f.Close(); err != nil {
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panic(err)
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}
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}
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var dbg *debugger
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type debugger struct {
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f *os.File
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err error
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}
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func debugf(v string, args ...interface{}) {
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if dbg.err == nil {
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_, dbg.err = fmt.Fprintf(dbg.f, v, args...)
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}
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}
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func debugDumpDistance(dist map[*Router]int64) {
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var keys []*Router
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for k := range dist {
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keys = append(keys, k)
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}
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sort.Slice(keys, func(i, j int) bool {
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return keys[i].Id < keys[j].Id
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})
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for _, k := range keys {
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debugf(" ->%v = %v\n", k.Id, dist[k])
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}
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}
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func debugPath(p *Path) {
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nodes := p.Nodes
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debugf("[r/%v]", nodes[0].Id)
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if len(p.Links) > 0 {
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nodes = nodes[1:]
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for _, link := range p.Links {
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debugf(" -> [l/%v cost=%v] -> [r/%v]", link.Id, link.Cost, nodes[0].Id)
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}
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}
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debugf("\n")
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}
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func debugNetwork(n *Network) {
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routers := n.AllConnectedRouters()
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sort.Slice(routers, func(i, j int) bool {
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return routers[i].Id < routers[j].Id
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})
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for rIdx, router := range routers {
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debugf("%v router: %v\n", rIdx, router.Id)
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links := router.routerLinks.GetLinks()
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sort.Slice(links, func(i, j int) bool {
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return links[i].Id < links[j].Id
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})
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for lIdx, link := range links {
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debugf(" %v link %v for (%v -> %v) c: %v sc: %v sl:%v dl: %v\n",
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lIdx, link.Id, link.Src.Id, link.Dst.Id, link.GetCost(), link.StaticCost, link.SrcLatency, link.DstLatency)
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}
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}
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}
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