diff options
Diffstat (limited to 'pkg/tcpip/header/ipv6.go')
| -rw-r--r-- | pkg/tcpip/header/ipv6.go | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/pkg/tcpip/header/ipv6.go b/pkg/tcpip/header/ipv6.go index fa6ccff30..c3a0407ac 100644 --- a/pkg/tcpip/header/ipv6.go +++ b/pkg/tcpip/header/ipv6.go @@ -391,23 +391,23 @@ 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 { +// IsV6LinkLocalUnicastAddress returns true iff the provided address is an IPv6 +// link-local unicast address, as defined by RFC 4291 section 2.5.6. +func IsV6LinkLocalUnicastAddress(addr tcpip.Address) bool { if len(addr) != IPv6AddressSize { return false } return addr[0] == 0xfe && (addr[1]&0xc0) == 0x80 } -// IsV6LoopbackAddress determines if the provided address is an IPv6 loopback -// address. +// IsV6LoopbackAddress returns true iff the provided address is an IPv6 loopback +// address, as defined by RFC 4291 section 2.5.3. func IsV6LoopbackAddress(addr tcpip.Address) bool { return addr == IPv6Loopback } -// IsV6LinkLocalMulticastAddress determines if the provided address is an IPv6 -// link-local multicast address. +// IsV6LinkLocalMulticastAddress returns true iff the provided address is an +// IPv6 link-local multicast address, as defined by RFC 4291 section 2.7. func IsV6LinkLocalMulticastAddress(addr tcpip.Address) bool { return IsV6MulticastAddress(addr) && V6MulticastScope(addr) == IPv6LinkLocalMulticastScope } @@ -472,7 +472,7 @@ func ScopeForIPv6Address(addr tcpip.Address) (IPv6AddressScope, tcpip.Error) { case IsV6LinkLocalMulticastAddress(addr): return LinkLocalScope, nil - case IsV6LinkLocalAddress(addr): + case IsV6LinkLocalUnicastAddress(addr): return LinkLocalScope, nil default: @@ -531,7 +531,8 @@ func GenerateTempIPv6SLAACAddr(tempIIDHistory []byte, stableAddr tcpip.Address) } } -// IPv6MulticastScope is the scope of a multicast IPv6 address. +// IPv6MulticastScope is the scope of a multicast IPv6 address, as defined by +// RFC 7346 section 2. type IPv6MulticastScope uint8 // The various values for IPv6 multicast scopes, as per RFC 7346 section 2: |