| Andreas Wundsam | f89f782 | 2013-09-23 14:49:24 -0700 | [diff] [blame] | 1 | // normalize match fields according to current OpenVSwitch behavior. When prerequisites for a field are not met |
| 2 | // e.g., eth_type is not set to 0x800, OVS sets the value of corresponding ignored fields (e.g., |
| 3 | // ip_src, tcp_dst) to 0, and sets the wildcard bit to 1. |
| 4 | if(ethType.equals(EthType.IPv4)) { |
| 5 | // IP |
| Andreas Wundsam | 520c880 | 2013-10-08 22:05:23 -0700 | [diff] [blame] | 6 | if(ipProto.equals(IpProtocol.TCP) || ipProto.equals(IpProtocol.UDP) || ipProto.equals(IpProtocol.ICMP)) { |
| Andreas Wundsam | f89f782 | 2013-09-23 14:49:24 -0700 | [diff] [blame] | 7 | // fully speced, wildcards and all values are fine |
| 8 | // normalize 32-63 ipv4 src 'mask' to a full bitmask |
| 9 | if((wildcards & OFPFW_NW_SRC_ALL) != 0) |
| 10 | wildcards |= OFPFW_NW_SRC_MASK; |
| 11 | |
| 12 | // normalize 32-63 ipv4 dst 'mask' to a full bitmask |
| 13 | if((wildcards & OFPFW_NW_DST_ALL) != 0) |
| 14 | wildcards |= OFPFW_NW_DST_MASK; |
| 15 | |
| 16 | } else { |
| 17 | // normalize 32-63 ipv4 src 'mask' to a full bitmask |
| 18 | if((wildcards & OFPFW_NW_SRC_ALL) != 0) |
| 19 | wildcards |= OFPFW_NW_SRC_MASK; |
| 20 | |
| 21 | // normalize 32-63 ipv4 dst 'mask' to a full bitmask |
| 22 | if((wildcards & OFPFW_NW_DST_ALL) != 0) |
| 23 | wildcards |= OFPFW_NW_DST_MASK; |
| 24 | |
| 25 | // not TCP/UDP/ICMP -> Clear TP wildcards for the wire |
| 26 | wildcards |= (OFPFW_TP_SRC | OFPFW_TP_DST); |
| 27 | tcpSrc = TransportPort.NONE; |
| 28 | tcpDst = TransportPort.NONE; |
| 29 | } |
| 30 | } else if (ethType.equals(EthType.ARP)) { |
| 31 | // normalize 32-63 ipv4 src 'mask' to a full bitmask |
| 32 | if((wildcards & OFPFW_NW_SRC_ALL) != 0) |
| 33 | wildcards |= OFPFW_NW_SRC_MASK; |
| 34 | |
| 35 | // normalize 32-63 ipv4 dst 'mask' to a full bitmask |
| 36 | if((wildcards & OFPFW_NW_DST_ALL) != 0) |
| 37 | wildcards |= OFPFW_NW_DST_MASK; |
| 38 | |
| 39 | // ARP: clear NW_TOS / TP wildcards for the wire |
| 40 | wildcards |= ( OFPFW_NW_TOS | OFPFW_TP_SRC | OFPFW_TP_DST); |
| 41 | ipDscp = IpDscp.NONE; |
| 42 | tcpSrc = TransportPort.NONE; |
| 43 | tcpDst = TransportPort.NONE; |
| 44 | } else { |
| 45 | // not even IP. Clear NW/TP wildcards for the wire |
| 46 | wildcards |= ( OFPFW_NW_TOS | OFPFW_NW_PROTO | OFPFW_NW_SRC_MASK | OFPFW_NW_DST_MASK | OFPFW_TP_SRC | OFPFW_TP_DST); |
| 47 | ipDscp = IpDscp.NONE; |
| 48 | ipProto = IpProtocol.NONE; |
| 49 | ipv4Src = IPv4Address.NONE; |
| 50 | ipv4Dst = IPv4Address.NONE; |
| 51 | tcpSrc = TransportPort.NONE; |
| 52 | tcpDst = TransportPort.NONE; |
| 53 | } |