diff options
| author | Kevin Krakauer <krakauer@google.com> | 2019-02-27 14:30:20 -0800 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-02-27 14:31:21 -0800 |
| commit | 121db29a93c651b8b62e8701bb0f16c231b08257 (patch) | |
| tree | c6b235b72340de44c8ee0e9398d337a8cc6c30f3 /pkg/tcpip/transport/udp/endpoint.go | |
| parent | 6df212b831dcc3350b7677423ec7835ed40b3f22 (diff) | |
Ping support via IPv4 raw sockets.
Broadly, this change:
* Enables sockets to be created via `socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)`.
* Passes the network-layer (IP) header up the stack to the transport endpoint,
which can pass it up to the socket layer. This allows a raw socket to return
the entire IP packet to users.
* Adds functions to stack.TransportProtocol, stack.Stack, stack.transportDemuxer
that enable incoming packets to be delivered to raw endpoints. New raw sockets
of other protocols (not ICMP) just need to register with the stack.
* Enables ping.endpoint to return IP headers when created via SOCK_RAW.
PiperOrigin-RevId: 235993280
Change-Id: I60ed994f5ff18b2cbd79f063a7fdf15d093d845a
Diffstat (limited to 'pkg/tcpip/transport/udp/endpoint.go')
| -rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 05d35e526..44b9cdf6a 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -934,7 +934,7 @@ func (e *endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { // HandlePacket is called by the stack when new packets arrive to this transport // endpoint. -func (e *endpoint) HandlePacket(r *stack.Route, id stack.TransportEndpointID, vv buffer.VectorisedView) { +func (e *endpoint) HandlePacket(r *stack.Route, id stack.TransportEndpointID, netHeader buffer.View, vv buffer.VectorisedView) { // Get the header then trim it from the view. hdr := header.UDP(vv.First()) if int(hdr.Length()) > vv.Size() { |