From 973ace6bd9c4a17fe6858d6a0b2977ddfaca7885 Mon Sep 17 00:00:00 2001
From: Ghanan Gowripalan <ghanan@google.com>
Date: Fri, 9 Apr 2021 13:20:05 -0700
Subject: Rename IsV6LinkLocalAddress to IsV6LinkLocalUnicastAddress

To match the V4 variant.

PiperOrigin-RevId: 367691981
---
 pkg/tcpip/network/ipv6/icmp.go | 4 ++--
 pkg/tcpip/network/ipv6/ipv6.go | 6 +++---
 pkg/tcpip/network/ipv6/ndp.go  | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'pkg/tcpip/network/ipv6')

diff --git a/pkg/tcpip/network/ipv6/icmp.go b/pkg/tcpip/network/ipv6/icmp.go
index a142b76c1..b2a80e1e9 100644
--- a/pkg/tcpip/network/ipv6/icmp.go
+++ b/pkg/tcpip/network/ipv6/icmp.go
@@ -273,7 +273,7 @@ func isMLDValid(pkt *stack.PacketBuffer, iph header.IPv6, routerAlert *header.IP
 	if iph.HopLimit() != header.MLDHopLimit {
 		return false
 	}
-	if !header.IsV6LinkLocalAddress(iph.SourceAddress()) {
+	if !header.IsV6LinkLocalUnicastAddress(iph.SourceAddress()) {
 		return false
 	}
 	return true
@@ -804,7 +804,7 @@ func (e *endpoint) handleICMP(pkt *stack.PacketBuffer, hasFragmentHeader bool, r
 		routerAddr := srcAddr
 
 		// Is the IP Source Address a link-local address?
-		if !header.IsV6LinkLocalAddress(routerAddr) {
+		if !header.IsV6LinkLocalUnicastAddress(routerAddr) {
 			// ...No, silently drop the packet.
 			received.invalid.Increment()
 			return
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go
index 7ee7be0f9..d36cefcd0 100644
--- a/pkg/tcpip/network/ipv6/ipv6.go
+++ b/pkg/tcpip/network/ipv6/ipv6.go
@@ -314,7 +314,7 @@ func (e *endpoint) onAddressAssignedLocked(addr tcpip.Address) {
 	//   Snooping switches MUST manage multicast forwarding state based on MLD
 	//   Report and Done messages sent with the unspecified address as the
 	//   IPv6 source address.
-	if header.IsV6LinkLocalAddress(addr) {
+	if header.IsV6LinkLocalUnicastAddress(addr) {
 		e.mu.mld.sendQueuedReports()
 	}
 }
@@ -914,7 +914,7 @@ func (e *endpoint) forwardPacket(pkt *stack.PacketBuffer) tcpip.Error {
 	h := header.IPv6(pkt.NetworkHeader().View())
 
 	dstAddr := h.DestinationAddress()
-	if header.IsV6LinkLocalAddress(h.SourceAddress()) || header.IsV6LinkLocalAddress(dstAddr) || header.IsV6LinkLocalMulticastAddress(dstAddr) {
+	if header.IsV6LinkLocalUnicastAddress(h.SourceAddress()) || header.IsV6LinkLocalUnicastAddress(dstAddr) || header.IsV6LinkLocalMulticastAddress(dstAddr) {
 		// As per RFC 4291 section 2.5.6,
 		//
 		//   Routers must not forward any packets with Link-Local source or
@@ -1622,7 +1622,7 @@ func (e *endpoint) getLinkLocalAddressRLocked() tcpip.Address {
 	var linkLocalAddr tcpip.Address
 	e.mu.addressableEndpointState.ForEachPrimaryEndpoint(func(addressEndpoint stack.AddressEndpoint) bool {
 		if addressEndpoint.IsAssigned(false /* allowExpired */) {
-			if addr := addressEndpoint.AddressWithPrefix().Address; header.IsV6LinkLocalAddress(addr) {
+			if addr := addressEndpoint.AddressWithPrefix().Address; header.IsV6LinkLocalUnicastAddress(addr) {
 				linkLocalAddr = addr
 				return false
 			}
diff --git a/pkg/tcpip/network/ipv6/ndp.go b/pkg/tcpip/network/ipv6/ndp.go
index dd7f6a126..a110faa54 100644
--- a/pkg/tcpip/network/ipv6/ndp.go
+++ b/pkg/tcpip/network/ipv6/ndp.go
@@ -737,7 +737,7 @@ func (ndp *ndpState) handleRA(ip tcpip.Address, ra header.NDPRouterAdvert) {
 			prefix := opt.Subnet()
 
 			// Is the prefix a link-local?
-			if header.IsV6LinkLocalAddress(prefix.ID()) {
+			if header.IsV6LinkLocalUnicastAddress(prefix.ID()) {
 				// ...Yes, skip as per RFC 4861 section 6.3.4,
 				// and RFC 4862 section 5.5.3.b (for SLAAC).
 				continue
-- 
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