| final public static int OFPFW_ALL = ((1 << 22) - 1); | |
| final public static int OFPFW_IN_PORT = 1 << 0; /* Switch input port. */ | |
| final public static int OFPFW_DL_VLAN = 1 << 1; /* VLAN id. */ | |
| final public static int OFPFW_DL_SRC = 1 << 2; /* Ethernet source address. */ | |
| final public static int OFPFW_DL_DST = 1 << 3; /* | |
| * Ethernet destination | |
| * address. | |
| */ | |
| final public static int OFPFW_DL_TYPE = 1 << 4; /* Ethernet frame type. */ | |
| final public static int OFPFW_NW_PROTO = 1 << 5; /* IP protocol. */ | |
| final public static int OFPFW_TP_SRC = 1 << 6; /* TCP/UDP source port. */ | |
| final public static int OFPFW_TP_DST = 1 << 7; /* TCP/UDP destination port. */ | |
| /* | |
| * IP source address wildcard bit count. 0 is exact match, 1 ignores the | |
| * LSB, 2 ignores the 2 least-significant bits, ..., 32 and higher wildcard | |
| * the entire field. This is the *opposite* of the usual convention where | |
| * e.g. /24 indicates that 8 bits (not 24 bits) are wildcarded. | |
| */ | |
| final public static int OFPFW_NW_SRC_SHIFT = 8; | |
| final public static int OFPFW_NW_SRC_BITS = 6; | |
| final public static int OFPFW_NW_SRC_MASK = ((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT; | |
| final public static int OFPFW_NW_SRC_ALL = 32 << OFPFW_NW_SRC_SHIFT; | |
| /* IP destination address wildcard bit count. Same format as source. */ | |
| final public static int OFPFW_NW_DST_SHIFT = 14; | |
| final public static int OFPFW_NW_DST_BITS = 6; | |
| final public static int OFPFW_NW_DST_MASK = ((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT; | |
| final public static int OFPFW_NW_DST_ALL = 32 << OFPFW_NW_DST_SHIFT; | |
| final public static int OFPFW_DL_VLAN_PCP = 1 << 20; /* VLAN priority. */ | |
| final public static int OFPFW_NW_TOS = 1 << 21; /* IP ToS (DSCP field, 6bits) */ | |
| @SuppressWarnings("unchecked") | |
| @Override | |
| public <F extends OFValueType<F>> F get(MatchField<F> field) | |
| throws UnsupportedOperationException { | |
| if (isFullyWildcarded(field)) | |
| return null; | |
| if (!field.arePrerequisitesOK(this)) | |
| return null; | |
| Object result; | |
| switch (field.id) { | |
| case IN_PORT: | |
| result = inPort; | |
| break; | |
| case ETH_DST: | |
| result = ethDst; | |
| break; | |
| case ETH_SRC: | |
| result = ethSrc; | |
| break; | |
| case ETH_TYPE: | |
| result = ethType; | |
| break; | |
| case VLAN_VID: | |
| result = vlanVid; | |
| break; | |
| case VLAN_PCP: | |
| result = vlanPcp; | |
| break; | |
| case ARP_OP: | |
| result = ArpOpcode.of(ipProto.getIpProtocolNumber()); | |
| break; | |
| case ARP_SPA: | |
| result = ipv4Src; | |
| break; | |
| case ARP_TPA: | |
| result = ipv4Dst; | |
| break; | |
| case IP_DSCP: | |
| result = ipDscp; | |
| break; | |
| case IP_PROTO: | |
| result = ipProto; | |
| break; | |
| case IPV4_SRC: | |
| result = ipv4Src; | |
| break; | |
| case IPV4_DST: | |
| result = ipv4Dst; | |
| break; | |
| case TCP_SRC: | |
| result = ipv4Src; | |
| break; | |
| case TCP_DST: | |
| result = tcpDst; | |
| break; | |
| case UDP_SRC: | |
| result = tcpSrc; | |
| break; | |
| case UDP_DST: | |
| result = tcpDst; | |
| break; | |
| case SCTP_SRC: | |
| result = tcpSrc; | |
| break; | |
| case SCTP_DST: | |
| result = tcpDst; | |
| break; | |
| case ICMPV4_TYPE: | |
| result = tcpSrc; | |
| break; | |
| case ICMPV4_CODE: | |
| result = tcpDst; | |
| break; | |
| // NOT SUPPORTED: | |
| default: | |
| throw new UnsupportedOperationException("OFMatch does not support matching on field " + field.getName()); | |
| } | |
| return (F)result; | |
| } | |
| @SuppressWarnings("unchecked") | |
| @Override | |
| public <F extends OFValueType<F>> Masked<F> getMasked(MatchField<F> field) | |
| throws UnsupportedOperationException { | |
| if (!isPartiallyMasked(field)) | |
| return null; | |
| if (!field.arePrerequisitesOK(this)) | |
| return null; | |
| Object result; | |
| switch (field.id) { | |
| case ARP_SPA: | |
| case IPV4_SRC: | |
| int srcBitMask = (-1) << (32 - getIpv4SrcCidrMaskLen()); | |
| result = IPv4AddressWithMask.of(ipv4Src, IPv4Address.of(srcBitMask)); | |
| break; | |
| case ARP_TPA: | |
| case IPV4_DST: | |
| int dstBitMask = (-1) << (32 - getIpv4DstCidrMaskLen()); | |
| result = IPv4AddressWithMask.of(ipv4Dst, IPv4Address.of(dstBitMask)); | |
| break; | |
| default: | |
| throw new UnsupportedOperationException("OFMatch does not support masked matching on field " + field.getName()); | |
| } | |
| return (Masked<F>)result; | |
| } | |
| @Override | |
| public boolean supports(MatchField<?> field) { | |
| switch (field.id) { | |
| case IN_PORT: | |
| case ETH_DST: | |
| case ETH_SRC: | |
| case ETH_TYPE: | |
| case VLAN_VID: | |
| case VLAN_PCP: | |
| case ARP_OP: | |
| case ARP_SPA: | |
| case ARP_TPA: | |
| case IP_DSCP: | |
| case IP_PROTO: | |
| case IPV4_SRC: | |
| case IPV4_DST: | |
| case TCP_SRC: | |
| case TCP_DST: | |
| case UDP_SRC: | |
| case UDP_DST: | |
| case SCTP_SRC: | |
| case SCTP_DST: | |
| case ICMPV4_TYPE: | |
| case ICMPV4_CODE: | |
| return true; | |
| default: | |
| return false; | |
| } | |
| } | |
| @Override | |
| public boolean supportsMasked(MatchField<?> field) { | |
| switch (field.id) { | |
| case ARP_SPA: | |
| case ARP_TPA: | |
| case IPV4_SRC: | |
| case IPV4_DST: | |
| return true; | |
| default: | |
| return false; | |
| } | |
| } | |
| @Override | |
| public boolean isExact(MatchField<?> field) { | |
| if (!field.arePrerequisitesOK(this)) | |
| return false; | |
| switch (field.id) { | |
| case IN_PORT: | |
| return (this.wildcards & OFPFW_IN_PORT) == 0; | |
| case ETH_DST: | |
| return (this.wildcards & OFPFW_DL_DST) == 0; | |
| case ETH_SRC: | |
| return (this.wildcards & OFPFW_DL_SRC) == 0; | |
| case ETH_TYPE: | |
| return (this.wildcards & OFPFW_DL_TYPE) == 0; | |
| case VLAN_VID: | |
| return (this.wildcards & OFPFW_DL_VLAN) == 0; | |
| case VLAN_PCP: | |
| return (this.wildcards & OFPFW_DL_VLAN_PCP) == 0; | |
| case ARP_OP: | |
| return (this.wildcards & OFPFW_NW_PROTO) == 0; | |
| case ARP_SPA: | |
| return this.getIpv4SrcCidrMaskLen() >= 32; | |
| case ARP_TPA: | |
| return this.getIpv4DstCidrMaskLen() >= 32; | |
| case IP_DSCP: | |
| return (this.wildcards & OFPFW_NW_TOS) == 0; | |
| case IP_PROTO: | |
| return (this.wildcards & OFPFW_NW_PROTO) == 0; | |
| case IPV4_SRC: | |
| return this.getIpv4SrcCidrMaskLen() >= 32; | |
| case IPV4_DST: | |
| return this.getIpv4DstCidrMaskLen() >= 32; | |
| case TCP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) == 0; | |
| case TCP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) == 0; | |
| case UDP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) == 0; | |
| case UDP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) == 0; | |
| case SCTP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) == 0; | |
| case SCTP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) == 0; | |
| case ICMPV4_TYPE: | |
| return (this.wildcards & OFPFW_TP_SRC) == 0; | |
| case ICMPV4_CODE: | |
| return (this.wildcards & OFPFW_TP_DST) == 0; | |
| default: | |
| throw new UnsupportedOperationException("OFMatch does not support matching on field " + field.getName()); | |
| } | |
| } | |
| /** | |
| * Parse this match's wildcard fields and return the number of significant | |
| * bits in the IP destination field. NOTE: this returns the number of bits | |
| * that are fixed, i.e., like CIDR, not the number of bits that are free | |
| * like OpenFlow encodes. | |
| * | |
| * @return A number between 0 (matches all IPs) and 32 (exact match) | |
| */ | |
| public int getIpv4DstCidrMaskLen() { | |
| return Math.max(32 - ((wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT), | |
| 0); | |
| } | |
| /** | |
| * Parse this match's wildcard fields and return the number of significant | |
| * bits in the IP destination field. NOTE: this returns the number of bits | |
| * that are fixed, i.e., like CIDR, not the number of bits that are free | |
| * like OpenFlow encodes. | |
| * | |
| * @return A number between 0 (matches all IPs) and 32 (exact match) | |
| */ | |
| public int getIpv4SrcCidrMaskLen() { | |
| return Math.max(32 - ((wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT), | |
| 0); | |
| } | |
| @Override | |
| public boolean isFullyWildcarded(MatchField<?> field) { | |
| if (!field.arePrerequisitesOK(this)) | |
| return true; | |
| switch (field.id) { | |
| case IN_PORT: | |
| return (this.wildcards & OFPFW_IN_PORT) != 0; | |
| case ETH_DST: | |
| return (this.wildcards & OFPFW_DL_DST) != 0; | |
| case ETH_SRC: | |
| return (this.wildcards & OFPFW_DL_SRC) != 0; | |
| case ETH_TYPE: | |
| return (this.wildcards & OFPFW_DL_TYPE) != 0; | |
| case VLAN_VID: | |
| return (this.wildcards & OFPFW_DL_VLAN) != 0; | |
| case VLAN_PCP: | |
| return (this.wildcards & OFPFW_DL_VLAN_PCP) != 0; | |
| case ARP_OP: | |
| return (this.wildcards & OFPFW_NW_PROTO) != 0; | |
| case ARP_SPA: | |
| return this.getIpv4SrcCidrMaskLen() <= 0; | |
| case ARP_TPA: | |
| return this.getIpv4DstCidrMaskLen() <= 0; | |
| case IP_DSCP: | |
| return (this.wildcards & OFPFW_NW_TOS) != 0; | |
| case IP_PROTO: | |
| return (this.wildcards & OFPFW_NW_PROTO) != 0; | |
| case TCP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) != 0; | |
| case TCP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) != 0; | |
| case UDP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) != 0; | |
| case UDP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) != 0; | |
| case SCTP_SRC: | |
| return (this.wildcards & OFPFW_TP_SRC) != 0; | |
| case SCTP_DST: | |
| return (this.wildcards & OFPFW_TP_DST) != 0; | |
| case ICMPV4_TYPE: | |
| return (this.wildcards & OFPFW_TP_SRC) != 0; | |
| case ICMPV4_CODE: | |
| return (this.wildcards & OFPFW_TP_DST) != 0; | |
| case IPV4_SRC: | |
| return this.getIpv4SrcCidrMaskLen() <= 0; | |
| case IPV4_DST: | |
| return this.getIpv4DstCidrMaskLen() <= 0; | |
| default: | |
| throw new UnsupportedOperationException("OFMatch does not support matching on field " + field.getName()); | |
| } | |
| } | |
| @Override | |
| public boolean isPartiallyMasked(MatchField<?> field) { | |
| if (!field.arePrerequisitesOK(this)) | |
| return false; | |
| switch (field.id) { | |
| case ARP_SPA: | |
| case IPV4_SRC: | |
| int srcCidrLen = getIpv4SrcCidrMaskLen(); | |
| return srcCidrLen > 0 && srcCidrLen < 32; | |
| case ARP_TPA: | |
| case IPV4_DST: | |
| int dstCidrLen = getIpv4SrcCidrMaskLen(); | |
| return dstCidrLen > 0 && dstCidrLen < 32; | |
| default: | |
| throw new UnsupportedOperationException("OFMatch does not support masked matching on field " + field.getName()); | |
| } | |
| } |