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| author | Tamir Duberstein <tamird@google.com> | 2018-09-12 20:38:27 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2018-09-12 20:39:24 -0700 |
| commit | 5adb3468d4de249df055d641e01ce6582b3a9388 (patch) | |
| tree | fa75f573912b3647dcc7158961aa1085e572a8a1 /pkg/tcpip/header/ipv6.go | |
| parent | 9dec7a3db99d8c7045324bc6d8f0c27e88407f6c (diff) | |
Add multicast support
PiperOrigin-RevId: 212750821
Change-Id: I822fd63e48c684b45fd91f9ce057867b7eceb792
Diffstat (limited to 'pkg/tcpip/header/ipv6.go')
| -rw-r--r-- | pkg/tcpip/header/ipv6.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/tcpip/header/ipv6.go b/pkg/tcpip/header/ipv6.go index 62bc23c27..066e48a9a 100644 --- a/pkg/tcpip/header/ipv6.go +++ b/pkg/tcpip/header/ipv6.go @@ -193,3 +193,12 @@ func IsV4MappedAddress(addr tcpip.Address) bool { return strings.HasPrefix(string(addr), "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff") } + +// IsV6MulticastAddress determines if the provided address is an IPv6 +// multicast address (anything starting with FF). +func IsV6MulticastAddress(addr tcpip.Address) bool { + if len(addr) != IPv6AddressSize { + return false + } + return addr[0] == 0xff +} |