netbird/gvisor
0
0
Fork 0
mirror of https://github.com/netbirdio/gvisor.git synced 2026-05-22 17:12:49 -07:00
Code Issues Packages Projects Releases Wiki Activity

netstack/sniffer: log GSO attributes

Browse Source 
PiperOrigin-RevId: 251788534
This commit is contained in:
Andrei Vagin
2019-06-05 22:51:53 -07:00
committed by Shentubot
parent 57772db2e7
commit 79f7cb6c1c
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/tcpip/link/sniffer/sniffer.go
+7 -3
View File
@@ -118,7 +118,7 @@ func NewWithFile(lower tcpip.LinkEndpointID, file *os.File, snapLen uint32) (tcp
// logs the packet before forwarding to the actual dispatcher.
func (e *endpoint) DeliverNetworkPacket(linkEP stack.LinkEndpoint, remote, local tcpip.LinkAddress, protocol tcpip.NetworkProtocolNumber, vv buffer.VectorisedView) {
if atomic.LoadUint32(&LogPackets) == 1 && e.file == nil {
logPacket("recv", protocol, vv.First())
logPacket("recv", protocol, vv.First(), nil)
}
if e.file != nil && atomic.LoadUint32(&LogPacketsToFile) == 1 {
vs := vv.Views()
@@ -198,7 +198,7 @@ func (e *endpoint) GSOMaxSize() uint32 {
// the request to the lower endpoint.
func (e *endpoint) WritePacket(r *stack.Route, gso *stack.GSO, hdr buffer.Prependable, payload buffer.VectorisedView, protocol tcpip.NetworkProtocolNumber) *tcpip.Error {
if atomic.LoadUint32(&LogPackets) == 1 && e.file == nil {
logPacket("send", protocol, hdr.View())
logPacket("send", protocol, hdr.View(), gso)
}
if e.file != nil && atomic.LoadUint32(&LogPacketsToFile) == 1 {
hdrBuf := hdr.View()
@@ -240,7 +240,7 @@ func (e *endpoint) WritePacket(r *stack.Route, gso *stack.GSO, hdr buffer.Prepen
return e.lower.WritePacket(r, gso, hdr, payload, protocol)
}
func logPacket(prefix string, protocol tcpip.NetworkProtocolNumber, b buffer.View) {
func logPacket(prefix string, protocol tcpip.NetworkProtocolNumber, b buffer.View, gso *stack.GSO) {
// Figure out the network layer info.
var transProto uint8
src := tcpip.Address("unknown")
@@ -404,5 +404,9 @@ func logPacket(prefix string, protocol tcpip.NetworkProtocolNumber, b buffer.Vie
return
}
if gso != nil {
details += fmt.Sprintf(" gso: %+v", gso)
}
log.Infof("%s %s %v:%v -> %v:%v len:%d id:%04x %s", prefix, transName, src, srcPort, dst, dstPort, size, id, details)
}