def add_vlan_meta(self, next_id, new_vlan_id):
next_id_ = stringify(next_id, 4)
vlan_id_ = stringify(new_vlan_id, 2)
self.send_request_add_entry_to_action(
"next.vlan_meta",
[self.Exact("fabric_metadata.next_id", next_id_)], "next.set_vlan",
[("new_vlan_id", vlan_id_)])
def set_egress_vlan_pop(self, egress_port, vlan_id):
egress_port = stringify(egress_port, 2)
vlan_id = stringify(vlan_id, 2)
self.send_request_add_entry_to_action("egress_next.egress_vlan", [
self.Exact("hdr.vlan_tag.vlan_id", vlan_id),
self.Exact("standard_metadata.egress_port", egress_port)
], "egress_next.pop_vlan", [])
def add_forwarding_mpls_entry(self, label, next_id):
label_ = stringify(label, 3)
next_id_ = stringify(next_id, 4)
self.send_request_add_entry_to_action(
"forwarding.mpls",
[self.Exact("mpls_label", label_)],
"forwarding.pop_mpls_and_next", [("next_id", next_id_)])
def add_forwarding_acl_cpu_entry(self, eth_type=None, clone=False):
eth_type_ = stringify(eth_type, 2)
eth_type_mask = stringify(0xFFFF, 2)
action_name = "clone_to_cpu" if clone else "punt_to_cpu"
self.send_request_add_entry_to_action(
"acl.acl", [self.Ternary("eth_type", eth_type_, eth_type_mask)],
"acl." + action_name, [], DEFAULT_PRIORITY)
def setup_int(self):
self.send_request_add_entry_to_action(
"int_egress.int_prep", None, "int_egress.int_transit",
[("switch_id", stringify(1, 4))])
req = self.get_new_write_request()
for i in xrange(16):
base = "int_set_header_0003_i"
mf = self.Exact("hdr.int_header.instruction_mask_0003",
stringify(i, 1))
action = "int_metadata_insert." + base + str(i)
self.push_update_add_entry_to_action(
req,
"int_metadata_insert.int_inst_0003", [mf],
action, [])
self.write_request(req)
req = self.get_new_write_request()
for i in xrange(16):
base = "int_set_header_0407_i"
mf = self.Exact("hdr.int_header.instruction_mask_0407",
stringify(i, 1))
action = "int_metadata_insert." + base + str(i)
self.push_update_add_entry_to_action(
req,
"int_metadata_insert.int_inst_0407", [mf],
action, [])
self.write_request(req)
def add_next_multicast(self, next_id, mcast_group_id):
next_id_ = stringify(next_id, 4)
mcast_group_id_ = stringify(mcast_group_id, 2)
self.send_request_add_entry_to_action(
"next.multicast",
[self.Exact("fabric_metadata.next_id", next_id_)],
"next.set_mcast_group", [("gid", mcast_group_id_)])
def add_next_output_simple(self, next_id, egress_port):
next_id_ = stringify(next_id, 4)
egress_port_ = stringify(egress_port, 2)
self.send_request_add_entry_to_action(
"next.simple",
[self.Exact("next_id", next_id_)],
"next.output_simple", [("port_num", egress_port_)])
def add_next_vlan(self, next_id, new_vlan_id):
next_id_ = stringify(next_id, 4)
vlan_id_ = stringify(new_vlan_id, 2)
self.send_request_add_entry_to_action(
"next.next_vlan",
[self.Exact("next_id", next_id_)],
"next.set_vlan",
[("vlan_id", vlan_id_)])
def add_forwarding_acl_cpu_entry(self, eth_type=None):
eth_type_ = stringify(eth_type, 2)
eth_type_mask = stringify(0xFFFF, 2)
self.send_request_add_entry_to_action(
"forwarding.acl",
[self.Ternary("fabric_metadata.original_ether_type", eth_type_, eth_type_mask)],
"forwarding.send_to_controller", [],
DEFAULT_PRIORITY)
def add_next_hop_L3(self, next_id, egress_port, smac, dmac):
next_id_ = stringify(next_id, 4)
egress_port_ = stringify(egress_port, 2)
smac_ = mac_to_binary(smac)
dmac_ = mac_to_binary(dmac)
self.send_request_add_entry_to_action(
"next.simple", [self.Exact("fabric_metadata.next_id", next_id_)],
"next.l3_routing", [("port_num", egress_port_), ("smac", smac_),
("dmac", dmac_)])
def runTest(self):
self.setup_int()
dport = 5060
# int_type=hop-by-hop
int_shim = INT_L45_HEAD(int_type=1, length=4)
# ins_cnt: 5 = switch id + ports + q occupancy + ig port + eg port)
# max_hop_count: 3
# total_hop_count: 0
# instruction_mask_0003: 0xd = switch id (0), ports (1), q occupancy (3)
# instruction_mask_0407: 0xc = ig timestamp (4), eg timestamp (5)
int_header = "\x00\x05\x03\x00\xdc\x00\x00\x00"
# IP proto (UDP), UDP dport (4096)
int_tail = INT_L45_TAIL(next_proto=17, proto_param=dport)
payload = "\xab" * 128
inner_udp = UDP(sport=5061, dport=dport, chksum=0)
# IP tos is 0x04 to enable INT
pkt = Ether(src=self.DMAC_2, dst=self.SWITCH_MAC_2) / \
IP(tos=0x04, src=self.S1U_ENB_IPV4, dst=self.END_POINT_IPV4) / \
inner_udp / \
int_shim / int_header / int_tail / \
payload
exp_int_shim = INT_L45_HEAD(int_type=1, length=9)
# total_hop_count: 1
exp_int_header = "\x00\x05\x03\x01\xdc\x00\x00\x00"
# switch id: 1
exp_int_metadata = "\x00\x00\x00\x01"
# ig port: port2, eg port: port2
exp_int_metadata += stringify(self.port2, 2) + stringify(self.port1, 2)
# q id: 0, q occupancy: ?
exp_int_metadata += "\x00\x00\x00\x00"
# ig timestamp: ?
# eg timestamp: ?
exp_int_metadata += "\x00\x00\x00\x00" * 2
exp_int = exp_int_shim / exp_int_header / exp_int_metadata / int_tail
exp_pkt = Ether(src=self.SWITCH_MAC_1, dst=self.DMAC_1) / \
MPLS(label=self.mpls_label, cos=0, s=1, ttl=64) / \
IP(tos=0, id=0x1513, flags=0, frag=0,
src=self.S1U_SGW_IPV4, dst=self.S1U_ENB_IPV4) / \
UDP(sport=2152, dport=2152, chksum=0) / \
make_gtp(20 + len(inner_udp) + len(exp_int) + len(payload), 1) / \
IP(tos=0x04, src=self.S1U_ENB_IPV4, dst=self.END_POINT_IPV4, ttl=64) / \
inner_udp / \
exp_int / \
payload
# We mask off the timestamps as well as the queue occupancy
exp_pkt = Mask(exp_pkt)
offset_metadata = 14 + 4 + 20 + 8 + 8 + 20 + 8 + 4 + 8
exp_pkt.set_do_not_care((offset_metadata + 9) * 8, 11 * 8)
testutils.send_packet(self, self.port2, str(pkt))
testutils.verify_packet(self, exp_pkt, self.port1)
def add_xconnect(self, next_id, port1, port2):
next_id_ = stringify(next_id, 4)
port1_ = stringify(port1, 2)
port2_ = stringify(port2, 2)
for (inport, outport) in ((port1_, port2_), (port2_, port1_)):
self.send_request_add_entry_to_action("next.xconnect", [
self.Exact("next_id", next_id_),
self.Exact("ig_port", inport)
], "next.output_xconnect", [("port_num", outport)])
def add_next_mpls_routing(self, next_id, egress_port, smac, dmac, label):
egress_port_ = stringify(egress_port, 2)
smac_ = mac_to_binary(smac)
dmac_ = mac_to_binary(dmac)
label_ = stringify(label, 3)
self.add_next_hashed_indirect_action(next_id,
"next.mpls_routing_hashed",
[("port_num", egress_port_),
("smac", smac_), ("dmac", dmac_),
("label", label_)])
def set_upstream_line_map(self, s_tag, c_tag, line_id):
assert line_id != 0
s_tag_ = stringify(s_tag, 2) # outer
c_tag_ = stringify(c_tag, 2) # inner
line_id_ = stringify(line_id, 4)
# Upstream
self.send_request_add_entry_to_action(
"bng_ingress.upstream.t_line_map",
[self.Exact("s_tag", s_tag_), self.Exact("c_tag", c_tag_)],
"bng_ingress.upstream.set_line", [("line_id", line_id_)])
def add_next_hop_mpls_v4(self, next_id, egress_port, smac, dmac, label):
next_id_ = stringify(next_id, 4)
egress_port_ = stringify(egress_port, 2)
smac_ = mac_to_binary(smac)
dmac_ = mac_to_binary(dmac)
label_ = stringify(label, 3)
self.send_request_add_entry_to_action(
"next.simple", [self.Exact("fabric_metadata.next_id", next_id_)],
"next.mpls_routing_v4", [("port_num", egress_port_),
("smac", smac_), ("dmac", dmac_),
("label", label_)])
def get_int_metadata(self, instructions, switch_id, ig_port, eg_port):
int_metadata = ""
masked_ins_cnt = len(instructions)
if INT_SWITCH_ID in instructions:
int_metadata += stringify(switch_id, 4)
masked_ins_cnt -= 1
if INT_IG_EG_PORT in instructions:
int_metadata += stringify(ig_port, 2) + stringify(eg_port, 2)
masked_ins_cnt -= 1
int_metadata += "".join(["\x00\x00\x00\x00"] * masked_ins_cnt)
return int_metadata, masked_ins_cnt
def add_bridging_entry(self, vlan_id, eth_dstAddr, eth_dstAddr_mask,
next_id):
vlan_id_ = stringify(vlan_id, 2)
eth_dstAddr_ = mac_to_binary(eth_dstAddr)
eth_dstAddr_mask_ = mac_to_binary(eth_dstAddr_mask)
next_id_ = stringify(next_id, 4)
self.send_request_add_entry_to_action("forwarding.bridging", [
self.Exact("hdr.vlan_tag.vlan_id", vlan_id_),
self.Ternary("hdr.ethernet.dst_addr", eth_dstAddr_,
eth_dstAddr_mask_)
], "forwarding.set_next_id", [("next_id", next_id_)], DEFAULT_PRIORITY)
def add_bridging_entry(self, vlan_id, eth_dstAddr, eth_dstAddr_mask,
next_id):
vlan_id_ = stringify(vlan_id, 2)
mk = [self.Exact("vlan_id", vlan_id_)]
if eth_dstAddr is not None:
eth_dstAddr_ = mac_to_binary(eth_dstAddr)
eth_dstAddr_mask_ = mac_to_binary(eth_dstAddr_mask)
mk.append(self.Ternary("eth_dst", eth_dstAddr_, eth_dstAddr_mask_))
next_id_ = stringify(next_id, 4)
self.send_request_add_entry_to_action(
"forwarding.bridging", mk, "forwarding.set_next_id_bridging",
[("next_id", next_id_)], DEFAULT_PRIORITY)
def set_forwarding_type(self, ingress_port, eth_dstAddr, ethertype=0x800,
fwd_type=FORWARDING_TYPE_UNICAST_IPV4):
ingress_port_ = stringify(ingress_port, 2)
eth_dstAddr_ = mac_to_binary(eth_dstAddr)
ethertype_ = stringify(ethertype, 2)
fwd_type_ = stringify(fwd_type, 1)
self.send_request_add_entry_to_action(
"filtering.fwd_classifier",
[self.Exact("standard_metadata.ingress_port", ingress_port_),
self.Exact("hdr.ethernet.dst_addr", eth_dstAddr_),
self.Exact("fabric_metadata.original_ether_type", ethertype_)],
"filtering.set_forwarding_type", [("fwd_type", fwd_type_)])
def set_forwarding_type(self, ingress_port, eth_dstAddr, ethertype=ETH_TYPE_IPV4,
fwd_type=FORWARDING_TYPE_UNICAST_IPV4):
ingress_port_ = stringify(ingress_port, 2)
eth_dstAddr_ = mac_to_binary(eth_dstAddr)
eth_mask_ = mac_to_binary(MAC_MASK)
ethertype_ = stringify(ethertype, 2)
fwd_type_ = stringify(fwd_type, 1)
self.send_request_add_entry_to_action(
"filtering.fwd_classifier",
[self.Exact("ig_port", ingress_port_),
self.Ternary("eth_dst", eth_dstAddr_, eth_mask_),
self.Exact("eth_type", ethertype_)],
"filtering.set_forwarding_type", [("fwd_type", fwd_type_)],
priority=DEFAULT_PRIORITY)
def add_next_mpls_routing_group(self, next_id, grp_id, next_hops=None):
actions = []
if next_hops is not None:
for (egress_port, smac, dmac, label) in next_hops:
egress_port_ = stringify(egress_port, 2)
smac_ = mac_to_binary(smac)
dmac_ = mac_to_binary(dmac)
label_ = stringify(label, 3)
actions.append([
"next.mpls_routing_hashed",
[("port_num", egress_port_), ("smac", smac_),
("dmac", dmac_), ("label", label_)]
])
self.add_next_hashed_group_action(next_id, grp_id, actions)
def setup_line_v4(self, s_tag, c_tag, line_id, ipv4_addr,
pppoe_session_id, ds_next_id, enabled=True):
assert s_tag != 0
assert c_tag != 0
assert line_id != 0
assert pppoe_session_id != 0
c_tag_ = stringify(c_tag, 2) # inner
line_id_ = stringify(line_id, 4)
ipv4_addr_ = ipv4_to_binary(ipv4_addr)
pppoe_session_id_ = stringify(pppoe_session_id, 2)
ds_next_id_ = stringify(ds_next_id, 4)
# Upstream
self.set_upstream_line_map(s_tag=s_tag, c_tag=c_tag, line_id=line_id)
if enabled:
# Enable upstream termination.
self.send_request_add_entry_to_action(
"bng_ingress.upstream.t_pppoe_term_v4",
[self.Exact("line_id", line_id_),
self.Exact("ipv4_src", ipv4_addr_),
self.Exact("pppoe_session_id", pppoe_session_id_)],
"bng_ingress.upstream.term_enabled_v4", [])
# Downstream
if enabled:
a_name = "set_line_next"
a_params = [
("line_id", line_id_),
("next_id", ds_next_id_),
]
else:
a_name = "set_line_drop"
a_params = [
("line_id", line_id_)
]
self.send_request_add_entry_to_action(
"bng_ingress.downstream.t_line_map_v4",
[self.Exact("ipv4_dst", ipv4_addr_)],
"bng_ingress.downstream." + a_name, a_params)
self.send_request_add_entry_to_action(
"bng_egress.downstream.t_session_encap",
[self.Exact("line_id", line_id_)],
"bng_egress.downstream.encap_v4", [
("c_tag", c_tag_),
("pppoe_session_id", pppoe_session_id_),
])
def set_ingress_port_vlan(self, ingress_port, vlan_valid=False,
vlan_id=0,
new_vlan_id=0):
ingress_port_ = stringify(ingress_port, 2)
vlan_valid_ = '\x01' if vlan_valid else '\x00'
vlan_id_ = stringify(vlan_id, 2)
vlan_id_mask_ = stringify(4095 if vlan_valid else 0, 2)
new_vlan_id_ = stringify(new_vlan_id, 2)
action_name = "set_vlan" if vlan_valid else "push_internal_vlan"
self.send_request_add_entry_to_action(
"filtering.ingress_port_vlan",
[self.Exact("standard_metadata.ingress_port", ingress_port_),
self.Exact("hdr.vlan_tag.is_valid", vlan_valid_),
self.Ternary("hdr.vlan_tag.vlan_id", vlan_id_, vlan_id_mask_)],
"filtering." + action_name, [("new_vlan_id", new_vlan_id_)],
DEFAULT_PRIORITY)
def setUp(self):
super(SpgwSimpleTest, self).setUp()
self.add_forwarding_unicast_v4_entry(self.S1U_ENB_IPV4, 32, 1)
self.add_forwarding_unicast_v4_entry(self.END_POINT_IPV4, 32, 2)
self.add_next_hop_L3(1, self.port2, self.SWITCH_MAC_2, self.DMAC_2)
self.add_next_hop_L3(2, self.port1, self.SWITCH_MAC_1, self.DMAC_1)
req = p4runtime_pb2.WriteRequest()
req.device_id = self.device_id
s1u_enb_ipv4_ = ipv4_to_binary(self.S1U_ENB_IPV4)
s1u_sgw_ipv4_ = ipv4_to_binary(self.S1U_SGW_IPV4)
end_point_ipv4_ = ipv4_to_binary(self.END_POINT_IPV4)
self.push_update_add_entry_to_action(
req, "spgw_ingress.ue_filter_table",
[self.Lpm("ipv4.dst_addr", end_point_ipv4_, 32)], "NoAction", [])
self.push_update_add_entry_to_action(
req, "spgw_ingress.s1u_filter_table",
[self.Exact("spgw_meta.s1u_sgw_addr", s1u_sgw_ipv4_)], "NoAction",
[])
self.push_update_add_entry_to_action(
req, "spgw_ingress.dl_sess_lookup",
[self.Exact("ipv4.dst_addr", end_point_ipv4_)],
"spgw_ingress.set_dl_sess_info", [("teid", stringify(1, 4)),
("s1u_enb_addr", s1u_enb_ipv4_),
("s1u_sgw_addr", s1u_sgw_ipv4_)])
self.write_request(req)
def set_upstream_pppoe_cp_table(self, pppoe_codes=()):
for code in pppoe_codes:
code_ = stringify(code, 1)
self.send_request_add_entry_to_action(
"bng_ingress.upstream.t_pppoe_cp",
[self.Exact("pppoe_code", code_)],
"bng_ingress.upstream.punt_to_cpu", [], DEFAULT_PRIORITY)
def runTest(self):
ip_dst_addr = "10.0.0.1"
ip_dst_addr_str = ipv4_to_binary(ip_dst_addr)
ig_port = self.swports(1)
eg_port = self.swports(2)
# port is 9-bit in v1model, i.e. 2 bytes
eg_port_str = stringify(eg_port, 2)
smac = "\xee\xcd\x00\x7e\x70\x00"
dmac = "\xee\x30\xca\x9d\x1e\x00"
# we do not care about the src mac address or the src IP address
pkt = testutils.simple_tcp_packet(eth_dst=smac,
ip_dst=ip_dst_addr,
ip_ttl=64)
# no forwarding entry: packet must be dropped
testutils.send_packet(self, ig_port, pkt)
testutils.verify_no_other_packets(self)
# add a forwarding entry
self.send_request_add_entry_to_action(
"l3_host_fwd", [self.Exact("hdr.ipv4.dst_addr", ip_dst_addr_str)],
"set_nexthop", [("port", eg_port_str), ("smac", smac),
("dmac", dmac)])
# check that the entry is hit and that no other packets are received
exp_pkt = testutils.simple_tcp_packet(eth_src=smac,
eth_dst=dmac,
ip_dst=ip_dst_addr,
ip_ttl=63)
testutils.send_packet(self, ig_port, pkt)
testutils.verify_packets(self, exp_pkt, [eg_port])
def add_next_hashed_indirect_action(self, next_id, action_name, params):
next_id_ = stringify(next_id, 4)
mbr_id = self.get_next_mbr_id()
self.send_request_add_member("next.hashed_selector", mbr_id,
action_name, params)
self.send_request_add_entry_to_member(
"next.hashed", [self.Exact("next_id", next_id_)], mbr_id)
def add_l2_exact_entry(self, eth_dst, out_port):
out_port_ = stringify(out_port, 2)
eth_dst_ = mac_to_binary(eth_dst)
mk = [self.Exact("hdr.ethernet.dst_addr", eth_dst_)]
self.send_request_add_entry_to_action("FabricIngress.l2_exact_table",
mk,
"FabricIngress.set_output_port",
[("port_num", out_port_)])
def add_forwarding_unicast_v4_entry(self, ipv4_dstAddr, ipv4_pLen,
next_id):
ipv4_dstAddr_ = ipv4_to_binary(ipv4_dstAddr)
next_id_ = stringify(next_id, 4)
self.send_request_add_entry_to_action(
"forwarding.unicast_v4",
[self.Lpm("hdr.ipv4.dst_addr", ipv4_dstAddr_, ipv4_pLen)],
"forwarding.set_next_id", [("next_id", next_id_)])
def set_ingress_port_vlan(self,
ingress_port,
vlan_valid=False,
vlan_id=0,
internal_vlan_id=0):
ingress_port_ = stringify(ingress_port, 2)
vlan_valid_ = '\x01' if vlan_valid else '\x00'
vlan_id_ = stringify(vlan_id, 2)
vlan_id_mask_ = stringify(4095 if vlan_valid else 0, 2)
new_vlan_id_ = stringify(internal_vlan_id, 2)
action_name = "permit" if vlan_valid else "permit_with_internal_vlan"
action_params = [] if vlan_valid else [("vlan_id", new_vlan_id_)]
self.send_request_add_entry_to_action("filtering.ingress_port_vlan", [
self.Exact("ig_port", ingress_port_),
self.Exact("vlan_is_valid", vlan_valid_),
self.Ternary("vlan_id", vlan_id_, vlan_id_mask_)
], "filtering." + action_name, action_params, DEFAULT_PRIORITY)