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authorTamir Duberstein <tamird@google.com>2018-09-12 20:38:27 -0700
committerShentubot <shentubot@google.com>2018-09-12 20:39:24 -0700
commit5adb3468d4de249df055d641e01ce6582b3a9388 (patch)
treefa75f573912b3647dcc7158961aa1085e572a8a1 /pkg/tcpip/checker
parent9dec7a3db99d8c7045324bc6d8f0c27e88407f6c (diff)
Add multicast support
PiperOrigin-RevId: 212750821 Change-Id: I822fd63e48c684b45fd91f9ce057867b7eceb792
Diffstat (limited to 'pkg/tcpip/checker')
-rw-r--r--pkg/tcpip/checker/checker.go16
1 files changed, 16 insertions, 0 deletions
diff --git a/pkg/tcpip/checker/checker.go b/pkg/tcpip/checker/checker.go
index 518719de4..8e0e49efa 100644
--- a/pkg/tcpip/checker/checker.go
+++ b/pkg/tcpip/checker/checker.go
@@ -86,6 +86,22 @@ func DstAddr(addr tcpip.Address) NetworkChecker {
}
}
+// TTL creates a checker that checks the TTL (ipv4) or HopLimit (ipv6).
+func TTL(ttl uint8) NetworkChecker {
+ return func(t *testing.T, h []header.Network) {
+ var v uint8
+ switch ip := h[0].(type) {
+ case header.IPv4:
+ v = ip.TTL()
+ case header.IPv6:
+ v = ip.HopLimit()
+ }
+ if v != ttl {
+ t.Fatalf("Bad TTL, got %v, want %v", v, ttl)
+ }
+ }
+}
+
// PayloadLen creates a checker that checks the payload length.
func PayloadLen(plen int) NetworkChecker {
return func(t *testing.T, h []header.Network) {