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| author | Ghanan Gowripalan <ghanan@google.com> | 2021-06-24 22:37:03 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-06-24 22:39:52 -0700 |
| commit | 49986674aaefd1aff50cc35cf1089206e174325c (patch) | |
| tree | 19f68c1a7e87a9580739a303a60d6c38b300a5d9 /pkg/tcpip/network/ipv6/ipv6.go | |
| parent | ccd2d607e5b51b0940c2c267305d7b565ba99102 (diff) | |
Refactor default router state to off-link route state
This change prepares for a later change which supports the NDP
Route Information option to discover more-specific routes, as
per RFC 4191.
The newly introduced off-link route state will be used to hold
both the state for default routers (which is a default (off-link)
route through the router, and more-specific routes (which are
routes through some router to some destination subnet more specific
than the IPv6 empty subnet).
Updates #6172.
PiperOrigin-RevId: 381403761
Diffstat (limited to 'pkg/tcpip/network/ipv6/ipv6.go')
| -rw-r--r-- | pkg/tcpip/network/ipv6/ipv6.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go index f5693defe..b1aec5312 100644 --- a/pkg/tcpip/network/ipv6/ipv6.go +++ b/pkg/tcpip/network/ipv6/ipv6.go @@ -344,7 +344,10 @@ func (e *endpoint) onAddressAssignedLocked(addr tcpip.Address) { func (e *endpoint) InvalidateDefaultRouter(rtr tcpip.Address) { e.mu.Lock() defer e.mu.Unlock() - e.mu.ndp.invalidateDefaultRouter(rtr) + + // We represent default routers with a default (off-link) route through the + // router. + e.mu.ndp.invalidateOffLinkRoute(offLinkRoute{dest: header.IPv6EmptySubnet, router: rtr}) } // SetNDPConfigurations implements NDPEndpoint. |