diff options
Diffstat (limited to 'pkg/sentry/socket/netstack/netstack.go')
| -rw-r--r-- | pkg/sentry/socket/netstack/netstack.go | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index 09db2109f..0ae573b45 100644 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go @@ -1177,6 +1177,25 @@ func getSockOptIPv6(t *kernel.Task, ep commonEndpoint, name, outLen int) (interf case linux.IPV6_PATHMTU: t.Kernel().EmitUnimplementedEvent(t) + case linux.IPV6_TCLASS: + // Length handling for parity with Linux. + if outLen == 0 { + return make([]byte, 0), nil + } + var v tcpip.IPv6TrafficClassOption + if err := ep.GetSockOpt(&v); err != nil { + return nil, syserr.TranslateNetstackError(err) + } + + uintv := uint32(v) + // Linux truncates the output binary to outLen. + ib := binary.Marshal(nil, usermem.ByteOrder, &uintv) + // Handle cases where outLen is lesser than sizeOfInt32. + if len(ib) > outLen { + ib = ib[:outLen] + } + return ib, nil + default: emitUnimplementedEventIPv6(t, name) } @@ -1244,6 +1263,20 @@ func getSockOptIP(t *kernel.Task, ep commonEndpoint, name, outLen int, family in } return int32(0), nil + case linux.IP_TOS: + // Length handling for parity with Linux. + if outLen == 0 { + return []byte(nil), nil + } + var v tcpip.IPv4TOSOption + if err := ep.GetSockOpt(&v); err != nil { + return nil, syserr.TranslateNetstackError(err) + } + if outLen < sizeOfInt32 { + return uint8(v), nil + } + return int32(v), nil + default: emitUnimplementedEventIP(t, name) } @@ -1542,6 +1575,19 @@ func setSockOptIPv6(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) t.Kernel().EmitUnimplementedEvent(t) + case linux.IPV6_TCLASS: + if len(optVal) < sizeOfInt32 { + return syserr.ErrInvalidArgument + } + v := int32(usermem.ByteOrder.Uint32(optVal)) + if v < -1 || v > 255 { + return syserr.ErrInvalidArgument + } + if v == -1 { + v = 0 + } + return syserr.TranslateNetstackError(ep.SetSockOpt(tcpip.IPv6TrafficClassOption(v))) + default: emitUnimplementedEventIPv6(t, name) } @@ -1687,6 +1733,16 @@ func setSockOptIP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *s } return syserr.TranslateNetstackError(ep.SetSockOpt(tcpip.TTLOption(v))) + case linux.IP_TOS: + if len(optVal) == 0 { + return nil + } + v, err := parseIntOrChar(optVal) + if err != nil { + return err + } + return syserr.TranslateNetstackError(ep.SetSockOpt(tcpip.IPv4TOSOption(v))) + case linux.IP_ADD_SOURCE_MEMBERSHIP, linux.IP_BIND_ADDRESS_NO_PORT, linux.IP_BLOCK_SOURCE, @@ -1710,7 +1766,6 @@ func setSockOptIP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *s linux.IP_RECVTOS, linux.IP_RECVTTL, linux.IP_RETOPTS, - linux.IP_TOS, linux.IP_TRANSPARENT, linux.IP_UNBLOCK_SOURCE, linux.IP_UNICAST_IF, |