| // normalize wildcard fields to mimic old OpenVSwitch behavior. When prerequisites for a field were not met | |
| // e.g., eth_type is not set to 0x800, old OVS would set the value of the corresponding ignored fields (e.g., | |
| // ip_src, tcp_dst) to 0, AND ALSO SET THE WILDCARD to 0. It doesn't do that any more as of 1.1.2 and 1.4 | |
| if(ethType.equals(EthType.IPv4)) { | |
| // IP | |
| if(ipProto.equals(IpProtocol.TCP) || ipProto.equals(IpProtocol.UDP) || ipProto.equals(IpProtocol.ICMP)) { | |
| // fully speced, wildcards and all values are fine | |
| // normalize 32-63 ipv4 src 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_SRC_ALL) != 0) | |
| wildcards |= OFPFW_NW_SRC_MASK; | |
| // normalize 32-63 ipv4 dst 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_DST_ALL) != 0) | |
| wildcards |= OFPFW_NW_DST_MASK; | |
| } else { | |
| // normalize 32-63 ipv4 src 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_SRC_ALL) != 0) | |
| wildcards |= OFPFW_NW_SRC_MASK; | |
| // normalize 32-63 ipv4 dst 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_DST_ALL) != 0) | |
| wildcards |= OFPFW_NW_DST_MASK; | |
| // not TCP/UDP/ICMP -> Clear TP wildcards for the wire | |
| wildcards &= ~(OFPFW_TP_SRC | OFPFW_TP_DST); | |
| tcpSrc = TransportPort.NONE; | |
| tcpDst = TransportPort.NONE; | |
| } | |
| } else if (ethType.equals(EthType.ARP)) { | |
| // normalize 32-63 ipv4 src 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_SRC_ALL) != 0) | |
| wildcards |= OFPFW_NW_SRC_MASK; | |
| // normalize 32-63 ipv4 dst 'mask' to a full bitmask | |
| if((wildcards & OFPFW_NW_DST_ALL) != 0) | |
| wildcards |= OFPFW_NW_DST_MASK; | |
| // ARP: clear NW_TOS / TP wildcards for the wire | |
| wildcards &= ~( OFPFW_NW_TOS | OFPFW_TP_SRC | OFPFW_TP_DST); | |
| ipDscp = IpDscp.NONE; | |
| tcpSrc = TransportPort.NONE; | |
| tcpDst = TransportPort.NONE; | |
| } else { | |
| // not even IP. Clear NW/TP wildcards for the wire | |
| wildcards &= ~( OFPFW_NW_TOS | OFPFW_NW_PROTO | OFPFW_NW_SRC_MASK | OFPFW_NW_DST_MASK | OFPFW_TP_SRC | OFPFW_TP_DST); | |
| ipDscp = IpDscp.NONE; | |
| ipProto = IpProtocol.NONE; | |
| ipv4Src = IPv4Address.NONE; | |
| ipv4Dst = IPv4Address.NONE; | |
| tcpSrc = TransportPort.NONE; | |
| tcpDst = TransportPort.NONE; | |
| } |