def _create_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_ADD,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]),
instructions=[
ofdef.ofp_instruction_actions(actions=[
ofdef.ofp_action_output(
port=ofdef.OFPP_CONTROLLER,
max_len=ofdef.OFPCML_NO_BUFFER)
])
])
def _deleteicmpflows(subnetinfo):
ipaddress,macaddress,_,networkid = subnetinfo
return [
ofdef.ofp_flow_mod(
cookie = 0x2,
cookie_mask = 0xffffffffffffffff,
table_id = l3input,
command = ofdef.OFPFC_DELETE,
priority = ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields = [
ofdef.create_oxm(ofdef.NXM_NX_REG4,networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE,8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE,0)
]
)
)
]
def _createicmpflows(ipaddress, macaddress, networkid):
return [
ofdef.ofp_flow_mod(
cookie=0x2,
cookie_mask=0xffffffffffffffff,
table_id=l3input,
command=ofdef.OFPFC_ADD,
# icmp to router matcher same as ip forward to router
# so priority + 1
priority=ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=[
match_network(networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,
mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE, 8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE, 0)
]),
instructions=[
ofdef.ofp_instruction_actions(actions=[
ofdef.ofp_action_output(
port=ofdef.OFPP_CONTROLLER,
max_len=ofdef.OFPCML_NO_BUFFER)
])
])
]
def _deleteicmpflows(ipaddress, macaddress, networkid):
return [
ofdef.ofp_flow_mod(
cookie=0x2,
cookie_mask=0xffffffffffffffff,
table_id=l3input,
command=ofdef.OFPFC_DELETE,
priority=ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=[
ofdef.create_oxm(ofdef.NXM_NX_REG4, networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,
mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE, 8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE, 0)
]))
]
def _create_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_ADD,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields = match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
),
instructions = [
ofdef.ofp_instruction_actions(
actions = [
ofdef.ofp_action_output(port = ofdef.OFPP_CONTROLLER,
max_len = ofdef.OFPCML_NO_BUFFER
)
]
)
]
)
def _createicmpflows(subnetinfo):
ipaddress, macaddress, _, networkid = subnetinfo
return [
ofdef.ofp_flow_mod(
cookie=0x2,
cookie_mask=0xffffffffffffffff,
table_id=l3input,
command=ofdef.OFPFC_ADD,
# icmp to router matcher same as ip forward to router
# so priority + 1
priority=ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=[
match_network(networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,
mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE, 8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE, 0)
]),
instructions=[
ofdef.ofp_instruction_actions(actions=[
ofdef.nx_action_reg_move(
n_bits=48,
src=ofdef.OXM_OF_ETH_SRC,
dst=ofdef.OXM_OF_ETH_DST),
ofdef.ofp_action_set_field(
field=ofdef.create_oxm(
ofdef.OXM_OF_ETH_SRC,
ofdef.mac_addr(macaddress))),
ofdef.nx_action_reg_move(
n_bits=32,
src=ofdef.OXM_OF_IPV4_SRC,
dst=ofdef.OXM_OF_IPV4_DST),
ofdef.ofp_action_set_field(
field=ofdef.create_oxm(
ofdef.OXM_OF_IPV4_SRC,
ofdef.ip4_addr(ipaddress))),
ofdef.ofp_action_set_field(
field=ofdef.create_oxm(
ofdef.OXM_OF_ICMPV4_TYPE,
ICMP_ECHOREPLY)),
ofdef.ofp_action_nw_ttl(nw_ttl=128),
ofdef.ofp_action_output(
port=ofdef.OFPP_IN_PORT)
])
])
]
def _delete_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_DELETE,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]))
def _delete_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_DELETE,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields =
match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
)
)
def _createicmpflows(subnetinfo):
ipaddress,macaddress,_,networkid = subnetinfo
return [
ofdef.ofp_flow_mod(
cookie = 0x2,
cookie_mask = 0xffffffffffffffff,
table_id = l3input,
command = ofdef.OFPFC_ADD,
# icmp to router matcher same as ip forward to router
# so priority + 1
priority = ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields = [
match_network(networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE,8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE,0)
]
),
instructions = [
ofdef.ofp_instruction_actions(
actions = [
ofdef.ofp_action_output(
port = ofdef.OFPP_CONTROLLER,
max_len = ofdef.OFPCML_NO_BUFFER
)
]
)
]
)
]
def _createicmpflows(subnetinfo):
ipaddress,macaddress,_,networkid = subnetinfo
return [
ofdef.ofp_flow_mod(
cookie = 0x2,
cookie_mask = 0xffffffffffffffff,
table_id = l3input,
command = ofdef.OFPFC_ADD,
# icmp to router matcher same as ip forward to router
# so priority + 1
priority = ofdef.OFP_DEFAULT_PRIORITY + 1,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields = [
match_network(networkid),
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST,mac_addr_bytes(macaddress)),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,ip4_addr_bytes(ipaddress)),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,ofdef.IPPROTO_ICMP),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_TYPE,8),
ofdef.create_oxm(ofdef.OXM_OF_ICMPV4_CODE,0)
]
),
instructions = [
ofdef.ofp_instruction_actions(
actions = [
ofdef.nx_action_reg_move(
n_bits = 48,
src = ofdef.OXM_OF_ETH_SRC,
dst = ofdef.OXM_OF_ETH_DST
),
ofdef.ofp_action_set_field(
field = ofdef.create_oxm(
ofdef.OXM_OF_ETH_SRC,
ofdef.mac_addr(macaddress)
)
),
ofdef.nx_action_reg_move(
n_bits = 32,
src = ofdef.OXM_OF_IPV4_SRC,
dst = ofdef.OXM_OF_IPV4_DST
),
ofdef.ofp_action_set_field(
field = ofdef.create_oxm(
ofdef.OXM_OF_IPV4_SRC,
ofdef.ip4_addr(ipaddress)
)
),
ofdef.ofp_action_set_field(
field = ofdef.create_oxm(
ofdef.OXM_OF_ICMPV4_TYPE,
ICMP_ECHOREPLY
)
),
ofdef.ofp_action_nw_ttl(
nw_ttl = 128
),
ofdef.ofp_action_output(
port = ofdef.OFPP_IN_PORT
)
]
)
]
)
]