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authorSam Balana <sbalana@google.com>2020-07-27 15:16:16 -0700
committergVisor bot <gvisor-bot@google.com>2020-07-27 15:21:17 -0700
commit8dbf428a1236f5962077e2506bef365362b953d0 (patch)
tree899d6c0f72934877eb66859476035cb25e07b819 /pkg/tcpip/stack/linkaddrcache.go
parentca6bded95dbce07f9683904b4b768dfc2d4a09b2 (diff)
Add ability to send unicast ARP requests and Neighbor Solicitations
The previous implementation of LinkAddressRequest only supported sending broadcast ARP requests and multicast Neighbor Solicitations. The ability to send these packets as unicast is required for Neighbor Unreachability Detection. Tests: pkg/tcpip/network/arp:arp_test - TestLinkAddressRequest pkg/tcpip/network/ipv6:ipv6_test - TestLinkAddressRequest Updates #1889 Updates #1894 Updates #1895 Updates #1947 Updates #1948 Updates #1949 Updates #1950 PiperOrigin-RevId: 323451569
Diffstat (limited to 'pkg/tcpip/stack/linkaddrcache.go')
-rw-r--r--pkg/tcpip/stack/linkaddrcache.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkg/tcpip/stack/linkaddrcache.go b/pkg/tcpip/stack/linkaddrcache.go
index 403557fd7..6f73a0ce4 100644
--- a/pkg/tcpip/stack/linkaddrcache.go
+++ b/pkg/tcpip/stack/linkaddrcache.go
@@ -244,7 +244,7 @@ func (c *linkAddrCache) startAddressResolution(k tcpip.FullAddress, linkRes Link
for i := 0; ; i++ {
// Send link request, then wait for the timeout limit and check
// whether the request succeeded.
- linkRes.LinkAddressRequest(k.Addr, localAddr, linkEP)
+ linkRes.LinkAddressRequest(k.Addr, localAddr, "" /* linkAddr */, linkEP)
select {
case now := <-time.After(c.resolutionTimeout):