diff options
Diffstat (limited to 'pkg/tcpip/stack/stack.go')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index 5ea432a24..242d2150c 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -399,7 +399,7 @@ type Stack struct { // TODO(gvisor.dev/issue/940): S/R this field. portSeed uint32 - // ndpConfigs is the NDP configurations used by interfaces. + // ndpConfigs is the default NDP configurations used by interfaces. ndpConfigs NDPConfigurations // autoGenIPv6LinkLocal determines whether or not the stack will attempt @@ -433,7 +433,7 @@ type Options struct { // stack (false). HandleLocal bool - // NDPConfigs is the NDP configurations used by interfaces. + // NDPConfigs is the default NDP configurations used by interfaces. // // By default, NDPConfigs will have a zero value for its // DupAddrDetectTransmits field, implying that DAD will not be performed @@ -1425,6 +1425,25 @@ func (s *Stack) DupTentativeAddrDetected(id tcpip.NICID, addr tcpip.Address) *tc return nic.dupTentativeAddrDetected(addr) } +// SetNDPConfigurations sets the per-interface NDP configurations on the NIC +// with ID id to c. +// +// Note, if c contains invalid NDP configuration values, it will be fixed to +// use default values for the erroneous values. +func (s *Stack) SetNDPConfigurations(id tcpip.NICID, c NDPConfigurations) *tcpip.Error { + s.mu.Lock() + defer s.mu.Unlock() + + nic, ok := s.nics[id] + if !ok { + return tcpip.ErrUnknownNICID + } + + nic.setNDPConfigs(c) + + return nil +} + // PortSeed returns a 32 bit value that can be used as a seed value for port // picking. // |