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path: root/pkg/tcpip/checker/checker.go
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Diffstat (limited to 'pkg/tcpip/checker/checker.go')
-rw-r--r--pkg/tcpip/checker/checker.go7
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/tcpip/checker/checker.go b/pkg/tcpip/checker/checker.go
index 02137e1c9..2f15bf1f1 100644
--- a/pkg/tcpip/checker/checker.go
+++ b/pkg/tcpip/checker/checker.go
@@ -22,6 +22,7 @@ import (
"testing"
"gvisor.dev/gvisor/pkg/tcpip"
+ "gvisor.dev/gvisor/pkg/tcpip/buffer"
"gvisor.dev/gvisor/pkg/tcpip/header"
"gvisor.dev/gvisor/pkg/tcpip/seqnum"
)
@@ -639,6 +640,8 @@ func ICMPv4Code(want byte) TransportChecker {
// ICMPv6 creates a checker that checks that the transport protocol is ICMPv6 and
// potentially additional ICMPv6 header fields.
+//
+// ICMPv6 will validate the checksum field before calling checkers.
func ICMPv6(checkers ...TransportChecker) NetworkChecker {
return func(t *testing.T, h []header.Network) {
t.Helper()
@@ -650,6 +653,10 @@ func ICMPv6(checkers ...TransportChecker) NetworkChecker {
}
icmp := header.ICMPv6(last.Payload())
+ if got, want := icmp.Checksum(), header.ICMPv6Checksum(icmp, last.SourceAddress(), last.DestinationAddress(), buffer.VectorisedView{}); got != want {
+ t.Fatalf("Bad ICMPv6 checksum; got %d, want %d", got, want)
+ }
+
for _, f := range checkers {
f(t, icmp)
}