def put(self, buf, offset, rule):
for i in range(FLOW_N_REGS):
if ofproto_v1_0.nxm_nx_reg(i) == self.nxm_header or ofproto_v1_0.nxm_nx_reg_w(i) == self.nxm_header:
if rule.wc.regs_mask[i]:
return self.putm(buf, offset, rule.flow.regs[i], rule.wc.regs_mask[i])
else:
return self._put(buf, offset, rule.flow.regs[i])
def put(self, buf, offset, rule):
for i in range(FLOW_N_REGS):
if (ofproto_v1_0.nxm_nx_reg(i) == self.nxm_header
or ofproto_v1_0.nxm_nx_reg_w(i) == self.nxm_header):
if rule.wc.regs_mask[i]:
return self.putm(buf, offset, rule.flow.regs[i],
rule.wc.regs_mask[i])
else:
return self._put(buf, offset, rule.flow.regs[i])
def serialize_nxm_match(rule, buf, offset):
old_offset = offset
if not rule.wc.wildcards & FWW_IN_PORT:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IN_PORT, rule)
# Ethernet.
if rule.flow.dl_dst != mac.DONTCARE:
if rule.wc.dl_dst_mask:
header = ofproto_v1_0.NXM_OF_ETH_DST_W
else:
header = ofproto_v1_0.NXM_OF_ETH_DST
offset += nxm_put(buf, offset, header, rule)
if rule.flow.dl_src != mac.DONTCARE:
if rule.wc.dl_src_mask:
header = ofproto_v1_0.NXM_OF_ETH_SRC_W
else:
header = ofproto_v1_0.NXM_OF_ETH_SRC
offset += nxm_put(buf, offset, header, rule)
if not rule.wc.wildcards & FWW_DL_TYPE:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ETH_TYPE, rule)
# 802.1Q
if rule.wc.vlan_tci_mask != 0:
if rule.wc.vlan_tci_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_VLAN_TCI
else:
header = ofproto_v1_0.NXM_OF_VLAN_TCI_W
offset += nxm_put(buf, offset, header, rule)
# L3
if not rule.wc.wildcards & FWW_NW_DSCP:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IP_TOS, rule)
if not rule.wc.wildcards & FWW_NW_ECN:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IP_ECN, rule)
if not rule.wc.wildcards & FWW_NW_TTL:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IP_TTL, rule)
if not rule.wc.wildcards & FWW_NW_PROTO:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IP_PROTO, rule)
if not rule.wc.wildcards & FWW_NW_PROTO and (rule.flow.nw_proto
== inet.IPPROTO_ICMP):
if rule.wc.tp_src_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ICMP_TYPE, rule)
if rule.wc.tp_dst_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ICMP_CODE, rule)
if rule.flow.tp_src != 0:
if rule.flow.nw_proto == 6:
if rule.wc.tp_src_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_TCP_SRC
else:
header = ofproto_v1_0.NXM_OF_TCP_SRC_W
elif rule.flow.nw_proto == 17:
if rule.wc.tp_src_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_UDP_SRC
else:
header = ofproto_v1_0.NXM_OF_UDP_SRC_W
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
if rule.flow.tp_dst != 0:
if rule.flow.nw_proto == 6:
if rule.wc.tp_dst_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_TCP_DST
else:
header = ofproto_v1_0.NXM_OF_TCP_DST_W
elif rule.flow.nw_proto == 17:
if rule.wc.tp_dst_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_UDP_DST
else:
header = ofproto_v1_0.NXM_OF_UDP_DST_W
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
if rule.flow.tcp_flags != 0:
# TCP Flags can only be used if the ethernet type is IPv4 or IPv6
if rule.flow.dl_type in (ether.ETH_TYPE_IP, ether.ETH_TYPE_IPV6):
# TCP Flags can only be used if the ip protocol is TCP
if rule.flow.nw_proto == inet.IPPROTO_TCP:
if rule.wc.tcp_flags_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_NX_TCP_FLAGS
else:
header = ofproto_v1_0.NXM_NX_TCP_FLAGS_W
else:
header = 0
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
# IP Source and Destination
if rule.flow.nw_src != 0:
if rule.wc.nw_src_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_IP_SRC
else:
header = ofproto_v1_0.NXM_OF_IP_SRC_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.nw_dst != 0:
if rule.wc.nw_dst_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_IP_DST
else:
header = ofproto_v1_0.NXM_OF_IP_DST_W
offset += nxm_put(buf, offset, header, rule)
# IPv6
if not rule.wc.wildcards & FWW_NW_PROTO and (rule.flow.nw_proto
== inet.IPPROTO_ICMPV6):
if rule.wc.tp_src_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ICMPV6_TYPE,
rule)
if rule.wc.tp_dst_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ICMPV6_CODE,
rule)
if not rule.wc.wildcards & FWW_IPV6_LABEL:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IPV6_LABEL, rule)
if len(rule.flow.ipv6_src):
if len(rule.wc.ipv6_src_mask):
header = ofproto_v1_0.NXM_NX_IPV6_SRC_W
else:
header = ofproto_v1_0.NXM_NX_IPV6_SRC
offset += nxm_put(buf, offset, header, rule)
if len(rule.flow.ipv6_dst):
if len(rule.wc.ipv6_dst_mask):
header = ofproto_v1_0.NXM_NX_IPV6_DST_W
else:
header = ofproto_v1_0.NXM_NX_IPV6_DST
offset += nxm_put(buf, offset, header, rule)
if len(rule.flow.nd_target):
if len(rule.wc.nd_target_mask):
header = ofproto_v1_0.NXM_NX_ND_TARGET_W
else:
header = ofproto_v1_0.NXM_NX_ND_TARGET
offset += nxm_put(buf, offset, header, rule)
# ARP
if rule.flow.arp_spa != 0:
if rule.wc.arp_spa_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_ARP_SPA
else:
header = ofproto_v1_0.NXM_OF_ARP_SPA_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.arp_tpa != 0:
if rule.wc.arp_tpa_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_ARP_TPA
else:
header = ofproto_v1_0.NXM_OF_ARP_TPA_W
offset += nxm_put(buf, offset, header, rule)
if not rule.wc.wildcards & FWW_ARP_SHA:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ARP_SHA, rule)
if not rule.wc.wildcards & FWW_ARP_THA:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ARP_THA, rule)
if rule.flow.nw_frag:
if rule.wc.nw_frag_mask == FLOW_NW_FRAG_MASK:
header = ofproto_v1_0.NXM_NX_IP_FRAG
else:
header = ofproto_v1_0.NXM_NX_IP_FRAG_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.pkt_mark != 0:
if rule.wc.pkt_mark_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_NX_PKT_MARK
else:
header = ofproto_v1_0.NXM_NX_PKT_MARK_W
offset += nxm_put(buf, offset, header, rule)
# Tunnel Id
if rule.wc.tun_id_mask != 0:
if rule.wc.tun_id_mask == UINT64_MAX:
header = ofproto_v1_0.NXM_NX_TUN_ID
else:
header = ofproto_v1_0.NXM_NX_TUN_ID_W
offset += nxm_put(buf, offset, header, rule)
# XXX: Cookie
for i in range(FLOW_N_REGS):
if rule.wc.regs_bits & (1 << i):
if rule.wc.regs_mask[i]:
header = ofproto_v1_0.nxm_nx_reg_w(i)
else:
header = ofproto_v1_0.nxm_nx_reg(i)
offset += nxm_put(buf, offset, header, rule)
# Pad
pad_len = round_up(offset) - offset
msg_pack_into("%dx" % pad_len, buf, offset)
# The returned length, the match_len, does not include the pad
return offset - old_offset
@_register_make
@_set_nxm_headers([ofproto_v1_0.NXM_NX_IPV6_LABEL])
class MFICMPV6Label(MFField):
@classmethod
def make(cls, header):
return cls(header, MF_PACK_STRING_BE32)
def put(self, buf, offset, rule):
return self._put(buf, offset, rule.flow.ipv6_label)
@_register_make
@_set_nxm_headers([ofproto_v1_0.nxm_nx_reg(i) for i in range(FLOW_N_REGS)]
+ [ofproto_v1_0.nxm_nx_reg_w(i) for i in range(FLOW_N_REGS)])
class MFRegister(MFField):
@classmethod
def make(cls, header):
return cls(header, MF_PACK_STRING_BE32)
def put(self, buf, offset, rule):
for i in range(FLOW_N_REGS):
if (ofproto_v1_0.nxm_nx_reg(i) == self.nxm_header or
ofproto_v1_0.nxm_nx_reg_w(i) == self.nxm_header):
if rule.wc.regs_mask[i]:
return self.putm(buf, offset, rule.flow.regs[i],
rule.wc.regs_mask[i])
else:
return self._put(buf, offset, rule.flow.regs[i])
def serialize_nxm_match(rule, buf, offset):
old_offset = offset
if not rule.wc.wildcards & FWW_IN_PORT:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IN_PORT, rule)
# Ethernet.
if rule.flow.dl_dst != mac.DONTCARE:
if rule.wc.dl_dst_mask:
header = ofproto_v1_0.NXM_OF_ETH_DST_W
else:
header = ofproto_v1_0.NXM_OF_ETH_DST
offset += nxm_put(buf, offset, header, rule)
if rule.flow.dl_src != mac.DONTCARE:
if rule.wc.dl_src_mask:
header = ofproto_v1_0.NXM_OF_ETH_SRC_W
else:
header = ofproto_v1_0.NXM_OF_ETH_SRC
offset += nxm_put(buf, offset, header, rule)
if not rule.wc.wildcards & FWW_DL_TYPE:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ETH_TYPE, rule)
# 802.1Q
if rule.wc.vlan_tci_mask != 0:
if rule.wc.vlan_tci_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_VLAN_TCI
else:
header = ofproto_v1_0.NXM_OF_VLAN_TCI_W
offset += nxm_put(buf, offset, header, rule)
# L3
if not rule.wc.wildcards & FWW_NW_DSCP:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IP_TOS, rule)
if not rule.wc.wildcards & FWW_NW_ECN:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IP_ECN, rule)
if not rule.wc.wildcards & FWW_NW_TTL:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IP_TTL, rule)
if not rule.wc.wildcards & FWW_NW_PROTO:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_IP_PROTO, rule)
if not rule.wc.wildcards & FWW_NW_PROTO and (rule.flow.nw_proto
== inet.IPPROTO_ICMP):
if rule.wc.tp_src_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ICMP_TYPE, rule)
if rule.wc.tp_dst_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_OF_ICMP_CODE, rule)
if rule.flow.tp_src != 0:
if rule.flow.nw_proto == 6:
if rule.wc.tp_src_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_TCP_SRC
else:
header = ofproto_v1_0.NXM_OF_TCP_SRC_W
elif rule.flow.nw_proto == 17:
if rule.wc.tp_src_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_UDP_SRC
else:
header = ofproto_v1_0.NXM_OF_UDP_SRC_W
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
if rule.flow.tp_dst != 0:
if rule.flow.nw_proto == 6:
if rule.wc.tp_dst_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_TCP_DST
else:
header = ofproto_v1_0.NXM_OF_TCP_DST_W
elif rule.flow.nw_proto == 17:
if rule.wc.tp_dst_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_OF_UDP_DST
else:
header = ofproto_v1_0.NXM_OF_UDP_DST_W
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
if rule.flow.tcp_flags != 0:
# TCP Flags can only be used if the ethernet type is IPv4 or IPv6
if rule.flow.dl_type in (ether.ETH_TYPE_IP, ether.ETH_TYPE_IPV6):
# TCP Flags can only be used if the ip protocol is TCP
if rule.flow.nw_proto == inet.IPPROTO_TCP:
if rule.wc.tcp_flags_mask == UINT16_MAX:
header = ofproto_v1_0.NXM_NX_TCP_FLAGS
else:
header = ofproto_v1_0.NXM_NX_TCP_FLAGS_W
else:
header = 0
else:
header = 0
if header != 0:
offset += nxm_put(buf, offset, header, rule)
# IP Source and Destination
if rule.flow.nw_src != 0:
if rule.wc.nw_src_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_IP_SRC
else:
header = ofproto_v1_0.NXM_OF_IP_SRC_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.nw_dst != 0:
if rule.wc.nw_dst_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_IP_DST
else:
header = ofproto_v1_0.NXM_OF_IP_DST_W
offset += nxm_put(buf, offset, header, rule)
# IPv6
if not rule.wc.wildcards & FWW_NW_PROTO and (rule.flow.nw_proto
== inet.IPPROTO_ICMPV6):
if rule.wc.tp_src_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ICMPV6_TYPE,
rule)
if rule.wc.tp_dst_mask != 0:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ICMPV6_CODE,
rule)
if not rule.wc.wildcards & FWW_IPV6_LABEL:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_IPV6_LABEL, rule)
if len(rule.flow.ipv6_src):
if len(rule.wc.ipv6_src_mask):
header = ofproto_v1_0.NXM_NX_IPV6_SRC_W
else:
header = ofproto_v1_0.NXM_NX_IPV6_SRC
offset += nxm_put(buf, offset, header, rule)
if len(rule.flow.ipv6_dst):
if len(rule.wc.ipv6_dst_mask):
header = ofproto_v1_0.NXM_NX_IPV6_DST_W
else:
header = ofproto_v1_0.NXM_NX_IPV6_DST
offset += nxm_put(buf, offset, header, rule)
if len(rule.flow.nd_target):
if len(rule.wc.nd_target_mask):
header = ofproto_v1_0.NXM_NX_ND_TARGET_W
else:
header = ofproto_v1_0.NXM_NX_ND_TARGET
offset += nxm_put(buf, offset, header, rule)
# ARP
if rule.flow.arp_spa != 0:
if rule.wc.arp_spa_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_ARP_SPA
else:
header = ofproto_v1_0.NXM_OF_ARP_SPA_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.arp_tpa != 0:
if rule.wc.arp_tpa_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_OF_ARP_TPA
else:
header = ofproto_v1_0.NXM_OF_ARP_TPA_W
offset += nxm_put(buf, offset, header, rule)
if not rule.wc.wildcards & FWW_ARP_SHA:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ARP_SHA, rule)
if not rule.wc.wildcards & FWW_ARP_THA:
offset += nxm_put(buf, offset, ofproto_v1_0.NXM_NX_ARP_THA, rule)
if rule.flow.nw_frag:
if rule.wc.nw_frag_mask == FLOW_NW_FRAG_MASK:
header = ofproto_v1_0.NXM_NX_IP_FRAG
else:
header = ofproto_v1_0.NXM_NX_IP_FRAG_W
offset += nxm_put(buf, offset, header, rule)
if rule.flow.pkt_mark != 0:
if rule.wc.pkt_mark_mask == UINT32_MAX:
header = ofproto_v1_0.NXM_NX_PKT_MARK
else:
header = ofproto_v1_0.NXM_NX_PKT_MARK_W
offset += nxm_put(buf, offset, header, rule)
# Tunnel Id
if rule.wc.tun_id_mask != 0:
if rule.wc.tun_id_mask == UINT64_MAX:
header = ofproto_v1_0.NXM_NX_TUN_ID
else:
header = ofproto_v1_0.NXM_NX_TUN_ID_W
offset += nxm_put(buf, offset, header, rule)
# XXX: Cookie
for i in range(FLOW_N_REGS):
if rule.wc.regs_bits & (1 << i):
if rule.wc.regs_mask[i]:
header = ofproto_v1_0.nxm_nx_reg_w(i)
else:
header = ofproto_v1_0.nxm_nx_reg(i)
offset += nxm_put(buf, offset, header, rule)
# Pad
pad_len = round_up(offset) - offset
msg_pack_into("%dx" % pad_len, buf, offset)
# The returned length, the match_len, does not include the pad
return offset - old_offset
@_register_make
@_set_nxm_headers([ofproto_v1_0.NXM_NX_IPV6_LABEL])
class MFICMPV6Label(MFField):
@classmethod
def make(cls, header):
return cls(header, MF_PACK_STRING_BE32)
def put(self, buf, offset, rule):
return self._put(buf, offset, rule.flow.ipv6_label)
@_register_make
@_set_nxm_headers([ofproto_v1_0.nxm_nx_reg(i) for i in range(FLOW_N_REGS)] +
[ofproto_v1_0.nxm_nx_reg_w(i) for i in range(FLOW_N_REGS)])
class MFRegister(MFField):
@classmethod
def make(cls, header):
return cls(header, MF_PACK_STRING_BE32)
def put(self, buf, offset, rule):
for i in range(FLOW_N_REGS):
if (ofproto_v1_0.nxm_nx_reg(i) == self.nxm_header
or ofproto_v1_0.nxm_nx_reg_w(i) == self.nxm_header):
if rule.wc.regs_mask[i]:
return self.putm(buf, offset, rule.flow.regs[i],
rule.wc.regs_mask[i])
else:
return self._put(buf, offset, rule.flow.regs[i])
