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| author | Ghanan Gowripalan <ghanan@google.com> | 2020-01-15 16:43:36 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-01-15 17:10:48 -0800 |
| commit | 815df2959a76e4a19f5882e40402b9bbca9e70be (patch) | |
| tree | c06233aaeef5158198bdfb8223c3548d42574573 /pkg/tcpip/checker | |
| parent | d6fb1ec6c7c76040dd20e915b32f9ed795ae7077 (diff) | |
Solicit IPv6 routers when a NIC becomes enabled as a host
This change adds support to send NDP Router Solicitation messages when a NIC
becomes enabled as a host, as per RFC 4861 section 6.3.7.
Note, Router Solicitations will only be sent when the stack has forwarding
disabled.
Tests: Unittests to make sure that the initial Router Solicitations are sent
as configured. The tests also validate the sent Router Solicitations' fields.
PiperOrigin-RevId: 289964095
Diffstat (limited to 'pkg/tcpip/checker')
| -rw-r--r-- | pkg/tcpip/checker/checker.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/tcpip/checker/checker.go b/pkg/tcpip/checker/checker.go index 542abc99d..885d773b0 100644 --- a/pkg/tcpip/checker/checker.go +++ b/pkg/tcpip/checker/checker.go @@ -770,3 +770,9 @@ func NDPNSTargetAddress(want tcpip.Address) TransportChecker { } } } + +// NDPRS creates a checker that checks that the packet contains a valid NDP +// Router Solicitation message (as per the raw wire format). +func NDPRS() NetworkChecker { + return NDP(header.ICMPv6RouterSolicit, header.NDPRSMinimumSize) +} |