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Add more debug information

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This commit is contained in:
Kioubit 2021-12-24 13:02:57 -05:00
parent 99e48b6103
commit f69d8c190e
3 changed files with 10 additions and 2 deletions
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3
pndp/process.go
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@ -56,7 +56,7 @@ func (obj *ResponderObj) start() {
}() }()
go respond(obj.iface, requests, ndp_ADV, obj.filter, obj.autosense, obj.stopWG, obj.stopChan) go respond(obj.iface, requests, ndp_ADV, obj.filter, obj.autosense, obj.stopWG, obj.stopChan)
go listen(obj.iface, requests, ndp_SOL, obj.stopWG, obj.stopChan) go listen(obj.iface, requests, ndp_SOL, obj.stopWG, obj.stopChan)
fmt.Println("Started responder instance") fmt.Println("Started responder instance on interface ", obj.iface)
<-obj.stopChan <-obj.stopChan
} }
@ -122,6 +122,7 @@ func (obj *ProxyObj) start() {
go listen(obj.iface2, req_iface2_adv_iface1, ndp_ADV, obj.stopWG, obj.stopChan) go listen(obj.iface2, req_iface2_adv_iface1, ndp_ADV, obj.stopWG, obj.stopChan)
go respond(obj.iface1, req_iface2_adv_iface1, ndp_ADV, nil, "", obj.stopWG, obj.stopChan) go respond(obj.iface1, req_iface2_adv_iface1, ndp_ADV, nil, "", obj.stopWG, obj.stopChan)
fmt.Println("Started Proxy instance for interfaces: ", obj.iface1, " and ", obj.iface2)
<-obj.stopChan <-obj.stopChan
} }

5
pndp/rawsocket.go
View File

@ -62,7 +62,9 @@ func listen(iface string, responder chan *ndpRequest, requestType ndpType, stopW
syscall.Close(fd) syscall.Close(fd)
stopWG.Done() // syscall.read does not release when the file descriptor is closed stopWG.Done() // syscall.read does not release when the file descriptor is closed
}() }()
fmt.Println("Obtained fd ", fd) if GlobalDebug {
fmt.Println("Obtained fd ", fd)
}
if len([]byte(iface)) > syscall.IFNAMSIZ { if len([]byte(iface)) > syscall.IFNAMSIZ {
panic("Interface size larger then maximum allowed by the kernel") panic("Interface size larger then maximum allowed by the kernel")
@ -113,6 +115,7 @@ func listen(iface string, responder chan *ndpRequest, requestType ndpType, stopW
panic(err) panic(err)
} }
if GlobalDebug { if GlobalDebug {
fmt.Println("Got packet on", iface, "of type", requestType)
fmt.Println("Source IP:") fmt.Println("Source IP:")
fmt.Printf("% X\n", buf[:numRead][22:38]) fmt.Printf("% X\n", buf[:numRead][22:38])
fmt.Println("Destination IP:") fmt.Println("Destination IP:")

4
pndp/responder.go
View File

@ -87,6 +87,10 @@ func respond(iface string, requests chan *ndpRequest, respondType ndpType, filte
} }
} }
if GlobalDebug {
fmt.Println("Getting ready to send packet of type", respondType, "out on interface", iface)
}
if n.sourceIface == iface { if n.sourceIface == iface {
pkt(fd, result, n.srcIP, n.answeringForIP, niface.HardwareAddr, respondType) pkt(fd, result, n.srcIP, n.answeringForIP, niface.HardwareAddr, respondType)
} else { } else {