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authorTing-Yu Wang <anivia@google.com>2020-06-03 14:57:57 -0700
committergVisor bot <gvisor-bot@google.com>2020-06-03 15:00:42 -0700
commitd3a8bffe04595910714ec67231585bc33dab2b5b (patch)
treebbee2356a127e338124fb355b171aadee7f94b74 /pkg/tcpip/stack/stack.go
parentd8d86f0f3afdf0d46a556e7925ed54c5f4dc0bbf (diff)
Pass PacketBuffer as pointer.
Historically we've been passing PacketBuffer by shallow copying through out the stack. Right now, this is only correct as the caller would not use PacketBuffer after passing into the next layer in netstack. With new buffer management effort in gVisor/netstack, PacketBuffer will own a Buffer (to be added). Internally, both PacketBuffer and Buffer may have pointers and shallow copying shouldn't be used. Updates #2404. PiperOrigin-RevId: 314610879
Diffstat (limited to 'pkg/tcpip/stack/stack.go')
-rw-r--r--pkg/tcpip/stack/stack.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go
index 0ab4c3e19..8af06cb9a 100644
--- a/pkg/tcpip/stack/stack.go
+++ b/pkg/tcpip/stack/stack.go
@@ -52,7 +52,7 @@ const (
type transportProtocolState struct {
proto TransportProtocol
- defaultHandler func(r *Route, id TransportEndpointID, pkt PacketBuffer) bool
+ defaultHandler func(r *Route, id TransportEndpointID, pkt *PacketBuffer) bool
}
// TCPProbeFunc is the expected function type for a TCP probe function to be
@@ -778,7 +778,7 @@ func (s *Stack) TransportProtocolOption(transport tcpip.TransportProtocolNumber,
//
// It must be called only during initialization of the stack. Changing it as the
// stack is operating is not supported.
-func (s *Stack) SetTransportProtocolHandler(p tcpip.TransportProtocolNumber, h func(*Route, TransportEndpointID, PacketBuffer) bool) {
+func (s *Stack) SetTransportProtocolHandler(p tcpip.TransportProtocolNumber, h func(*Route, TransportEndpointID, *PacketBuffer) bool) {
state := s.transportProtocols[p]
if state != nil {
state.defaultHandler = h