Make dedicated methods for data operations in PacketBuffer

One of the preparation to decouple underlying buffer implementation.
There are still some methods that tie to VectorisedView, and they will be
changed gradually in later CLs.

This CL also introduce a new ICMPv6ChecksumParams to replace long list of
parameters when calling ICMPv6Checksum, aiming to be more descriptive.

PiperOrigin-RevId: 360778149

1 files changed, 3 insertions, 3 deletions

diff --git a/pkg/tcpip/link/sharedmem/sharedmem_test.go b/pkg/tcpip/link/sharedmem/sharedmem_test.go
index def47772f..d4b3ddd5c 100644
--- a/pkg/tcpip/link/sharedmem/sharedmem_test.go
+++ b/pkg/tcpip/link/sharedmem/sharedmem_test.go
@@ -80,7 +80,7 @@ func (q *queueBuffers) cleanup() {
 type packetInfo struct {
 	addr       tcpip.LinkAddress
 	proto      tcpip.NetworkProtocolNumber
-	vv         buffer.VectorisedView
+	data       buffer.View
 	linkHeader buffer.View
 }
 
@@ -136,7 +136,7 @@ func (c *testContext) DeliverNetworkPacket(remoteLinkAddr, localLinkAddr tcpip.L
 	c.packets = append(c.packets, packetInfo{
 		addr:  remoteLinkAddr,
 		proto: proto,
-		vv:    pkt.Data.Clone(nil),
+		data:  pkt.Data().AsRange().ToOwnedView(),
 	})
 	c.mu.Unlock()
 
@@ -676,7 +676,7 @@ func TestSimpleReceive(t *testing.T) {
 		// Wait for packet to be received, then check it.
 		c.waitForPackets(1, time.After(5*time.Second), "Timeout waiting for packet")
 		c.mu.Lock()
-		rcvd := []byte(c.packets[0].vv.ToView())
+		rcvd := []byte(c.packets[0].data)
 		c.packets = c.packets[:0]
 		c.mu.Unlock()