diff options
Diffstat (limited to 'pkg/tcpip/header/ipv6.go')
| -rw-r--r-- | pkg/tcpip/header/ipv6.go | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/pkg/tcpip/header/ipv6.go b/pkg/tcpip/header/ipv6.go index d985b745d..3d24736c7 100644 --- a/pkg/tcpip/header/ipv6.go +++ b/pkg/tcpip/header/ipv6.go @@ -77,6 +77,9 @@ const ( // IPv6MinimumMTU is the minimum MTU required by IPv6, per RFC 2460, // section 5. IPv6MinimumMTU = 1280 + + // IPv6Any is the non-routable IPv6 "any" meta address. + IPv6Any tcpip.Address = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" ) // PayloadLength returns the value of the "payload length" field of the ipv6 @@ -234,3 +237,12 @@ func LinkLocalAddr(linkAddr tcpip.LinkAddress) tcpip.Address { } return tcpip.Address(lladdrb[:]) } + +// IsV6LinkLocalAddress determines if the provided address is an IPv6 +// link-local address (fe80::/10). +func IsV6LinkLocalAddress(addr tcpip.Address) bool { + if len(addr) != IPv6AddressSize { + return false + } + return addr[0] == 0xfe && (addr[1]&0xc0) == 0x80 +} |