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authorBhasker Hariharan <bhaskerh@google.com>2020-03-24 15:33:16 -0700
committergVisor bot <gvisor-bot@google.com>2020-03-24 15:34:43 -0700
commitc8eeedcc1d6b1ee25532ae630a7efd7aa4656bdc (patch)
tree0d7176f046b072222079a84befb48435cb9b933e /pkg/tcpip/stack/packet_buffer.go
parentf97858011fa88b539585ca456943922204d92840 (diff)
Add support for setting TCP segment hash.
This allows the link layer endpoints to consistenly hash a TCP segment to a single underlying queue in case a link layer endpoint does support multiple underlying queues. Updates #231 PiperOrigin-RevId: 302760664
Diffstat (limited to 'pkg/tcpip/stack/packet_buffer.go')
-rw-r--r--pkg/tcpip/stack/packet_buffer.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/packet_buffer.go b/pkg/tcpip/stack/packet_buffer.go
index 1850fa8c3..9505a4e92 100644
--- a/pkg/tcpip/stack/packet_buffer.go
+++ b/pkg/tcpip/stack/packet_buffer.go
@@ -10,6 +10,7 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
+
package stack
import "gvisor.dev/gvisor/pkg/tcpip/buffer"
@@ -54,6 +55,10 @@ type PacketBuffer struct {
LinkHeader buffer.View
NetworkHeader buffer.View
TransportHeader buffer.View
+
+ // Hash is the transport layer hash of this packet. A value of zero
+ // indicates no valid hash has been set.
+ Hash uint32
}
// Clone makes a copy of pk. It clones the Data field, which creates a new