-# Copyright (c) 2019 Cisco and/or its affiliates.
+# Copyright (c) 2020 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
@staticmethod
def vpp_ipsec_create_tunnel_interfaces(
nodes, if1_ip_addr, if2_ip_addr, if1_key, if2_key, n_tunnels,
- crypto_alg, integ_alg, raddr_ip1, raddr_ip2, raddr_range):
+ crypto_alg, integ_alg, raddr_ip1, raddr_ip2, raddr_range,
+ existing_tunnels=0):
"""Create multiple IPsec tunnel interfaces between two VPP nodes.
:param nodes: VPP nodes to create tunnel interfaces.
:param if2_ip_addr: VPP node 2 interface IPv4/IPv6 address.
:param if1_key: VPP node 1 interface key from topology file.
:param if2_key: VPP node 2 interface key from topology file.
- :param n_tunnels: Number of tunnel interfaces to create.
+ :param n_tunnels: Number of tunnel interfaces to be there at the end.
:param crypto_alg: The encryption algorithm name.
:param integ_alg: The integrity algorithm name.
:param raddr_ip1: Policy selector remote IPv4/IPv6 start address for the
:param raddr_range: Mask specifying range of Policy selector Remote
IPv4/IPv6 addresses. Valid values are from 1 to 32 in case of IPv4
and to 128 in case of IPv6.
+ :param existing_tunnels: Number of tunnel interfaces before creation.
+ Useful mainly for reconf tests. Default 0.
:type nodes: dict
:type if1_ip_addr: str
:type if2_ip_addr: str
:type raddr_ip1: string
:type raddr_ip2: string
:type raddr_range: int
+ :type existing_tunnels: int
"""
n_tunnels = int(n_tunnels)
+ existing_tunnels = int(existing_tunnels)
spi_1 = 100000
spi_2 = 200000
if1_ip = ip_address(if1_ip_addr)
addr_incr = 1 << (128 - raddr_range) if if1_ip.version == 6 \
else 1 << (32 - raddr_range)
- if n_tunnels > 10:
+ if n_tunnels - existing_tunnels > 10:
tmp_fn1 = u"/tmp/ipsec_create_tunnel_dut1.config"
tmp_fn2 = u"/tmp/ipsec_create_tunnel_dut2.config"
if1_n = Topology.get_interface_name(nodes[u"DUT1"], if1_key)
vat = VatExecutor()
with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2:
rmac = Topology.get_interface_mac(nodes[u"DUT2"], if2_key)
- tmp_f1.write(
- f"exec create loopback interface\n"
- f"exec set interface state loop0 up\n"
- f"exec set interface ip address "
- f"{if1_n} {if2_ip - 1}/{mask}\n"
- f"exec set ip neighbor {if1_n} {if2_ip}/{mask2} {rmac} static\n"
- )
- tmp_f2.write(
- f"exec set interface ip address {if2_n} {if2_ip}/{mask}\n"
- )
- for i in range(n_tunnels):
+ if not existing_tunnels:
+ tmp_f1.write(
+ f"exec create loopback interface\n"
+ f"exec set interface state loop0 up\n"
+ f"exec set interface ip address "
+ f"{if1_n} {if2_ip - 1}/{mask}\n"
+ f"exec set ip neighbor {if1_n} {if2_ip}/{mask2} {rmac}"
+ f" static\n"
+ )
+ tmp_f2.write(
+ f"exec set interface ip address {if2_n}"
+ f" {if2_ip}/{mask}\n"
+ )
+ for i in range(existing_tunnels, n_tunnels):
ckey = gen_key(
IPsecUtil.get_crypto_alg_key_len(crypto_alg)
).hex()
os.remove(tmp_fn2)
with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2:
- tmp_f2.write(
- f"exec ip route add {if1_ip}/8 via {if2_ip - 1} {if2_n}\n"
- )
- for i in range(n_tunnels):
+ if not existing_tunnels:
+ tmp_f2.write(
+ f"exec ip route add {if1_ip}/8 via {if2_ip - 1}"
+ f" {if2_n}\n"
+ )
+ for i in range(existing_tunnels, n_tunnels):
tmp_f1.write(
f"exec set interface unnumbered ipip{i} use {if1_n}\n"
f"exec set interface state ipip{i} up\n"
os.remove(tmp_fn2)
return
- with PapiSocketExecutor(nodes[u"DUT1"]) as papi_exec:
- # Create loopback interface on DUT1, set it to up state
- cmd1 = u"create_loopback"
- args1 = dict(
- mac_address=0
- )
- err_msg = f"Failed to create loopback interface " \
- f"on host {nodes[u'DUT1'][u'host']}"
- loop_sw_if_idx = papi_exec.add(cmd1, **args1).\
- get_sw_if_index(err_msg)
- cmd1 = u"sw_interface_set_flags"
- args1 = dict(
- sw_if_index=loop_sw_if_idx,
- flags=InterfaceStatusFlags.IF_STATUS_API_FLAG_ADMIN_UP.value
- )
- err_msg = f"Failed to set loopback interface state up " \
- f"on host {nodes[u'DUT1'][u'host']}"
- papi_exec.add(cmd1, **args1).get_reply(err_msg)
- # Set IP address on VPP node 1 interface
- cmd1 = u"sw_interface_add_del_address"
- args1 = dict(
- sw_if_index=InterfaceUtil.get_interface_index(
- nodes[u"DUT1"], if1_key
- ),
- is_add=True,
- del_all=False,
- prefix=IPUtil.create_prefix_object(
- if2_ip - 1, 96 if if2_ip.version == 6 else 24
+ if not existing_tunnels:
+ with PapiSocketExecutor(nodes[u"DUT1"]) as papi_exec:
+ # Create loopback interface on DUT1, set it to up state
+ cmd1 = u"create_loopback"
+ args1 = dict(
+ mac_address=0
)
- )
- err_msg = f"Failed to set IP address on interface {if1_key} " \
- f"on host {nodes[u'DUT1'][u'host']}"
- papi_exec.add(cmd1, **args1).get_reply(err_msg)
- cmd4 = u"ip_neighbor_add_del"
- args4 = dict(
- is_add=1,
- neighbor=dict(
- sw_if_index=Topology.get_interface_sw_index(
+ err_msg = f"Failed to create loopback interface " \
+ f"on host {nodes[u'DUT1'][u'host']}"
+ loop_sw_if_idx = papi_exec.add(cmd1, **args1).\
+ get_sw_if_index(err_msg)
+ cmd1 = u"sw_interface_set_flags"
+ args1 = dict(
+ sw_if_index=loop_sw_if_idx,
+ flags=InterfaceStatusFlags.IF_STATUS_API_FLAG_ADMIN_UP.value
+ )
+ err_msg = f"Failed to set loopback interface state up " \
+ f"on host {nodes[u'DUT1'][u'host']}"
+ papi_exec.add(cmd1, **args1).get_reply(err_msg)
+ # Set IP address on VPP node 1 interface
+ cmd1 = u"sw_interface_add_del_address"
+ args1 = dict(
+ sw_if_index=InterfaceUtil.get_interface_index(
nodes[u"DUT1"], if1_key
),
- flags=1,
- mac_address=str(
- Topology.get_interface_mac(nodes[u"DUT2"], if2_key)
- ),
- ip_address=str(ip_address(if2_ip_addr))
+ is_add=True,
+ del_all=False,
+ prefix=IPUtil.create_prefix_object(
+ if2_ip - 1, 96 if if2_ip.version == 6 else 24
+ )
)
- )
- err_msg = f"Failed to add IP neighbor on interface {if1_key}"
- papi_exec.add(cmd4, **args4).get_reply(err_msg)
+ err_msg = f"Failed to set IP address on interface {if1_key} " \
+ f"on host {nodes[u'DUT1'][u'host']}"
+ papi_exec.add(cmd1, **args1).get_reply(err_msg)
+ cmd4 = u"ip_neighbor_add_del"
+ args4 = dict(
+ is_add=1,
+ neighbor=dict(
+ sw_if_index=Topology.get_interface_sw_index(
+ nodes[u"DUT1"], if1_key
+ ),
+ flags=1,
+ mac_address=str(
+ Topology.get_interface_mac(nodes[u"DUT2"], if2_key)
+ ),
+ ip_address=str(ip_address(if2_ip_addr))
+ )
+ )
+ err_msg = f"Failed to add IP neighbor on interface {if1_key}"
+ papi_exec.add(cmd4, **args4).get_reply(err_msg)
+ else:
+ # Executor not open, as InterfaceUtil will open its own.
+ loop_sw_if_idx = InterfaceUtil.vpp_get_interface_sw_index(
+ nodes[u"DUT1"], u"loop0")
+ cmd1 = u"sw_interface_add_del_address"
+ with PapiSocketExecutor(nodes[u"DUT1"]) as papi_exec:
# Configure IPsec tunnel interfaces
args1 = dict(
sw_if_index=loop_sw_if_idx,
)
err_msg = f"Failed to add IPsec tunnel interfaces " \
f"on host {nodes[u'DUT1'][u'host']}"
- ipsec_tunnels = list()
- ckeys = list()
- ikeys = list()
- for i in range(n_tunnels):
+ ipsec_tunnels = [None] * existing_tunnels
+ ckeys = [None] * existing_tunnels
+ ikeys = [None] * existing_tunnels
+ for i in range(existing_tunnels, n_tunnels):
ckeys.append(
gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg))
)
)
err_msg = f"Failed to add IP routes " \
f"on host {nodes[u'DUT1'][u'host']}"
- for i in range(n_tunnels):
+ for i in range(existing_tunnels, n_tunnels):
args1[u"unnumbered_sw_if_index"] = ipsec_tunnels[i]
args2[u"sw_if_index"] = ipsec_tunnels[i]
args3[u"route"] = IPUtil.compose_vpp_route_structure(
papi_exec.get_replies(err_msg)
with PapiSocketExecutor(nodes[u"DUT2"]) as papi_exec:
- # Set IP address on VPP node 2 interface
- cmd1 = u"sw_interface_add_del_address"
- args1 = dict(
- sw_if_index=InterfaceUtil.get_interface_index(
- nodes[u"DUT2"], if2_key
- ),
- is_add=True,
- del_all=False,
- prefix=IPUtil.create_prefix_object(
- if2_ip, 96 if if2_ip.version == 6 else 24
+ if not existing_tunnels:
+ # Set IP address on VPP node 2 interface
+ cmd1 = u"sw_interface_add_del_address"
+ args1 = dict(
+ sw_if_index=InterfaceUtil.get_interface_index(
+ nodes[u"DUT2"], if2_key
+ ),
+ is_add=True,
+ del_all=False,
+ prefix=IPUtil.create_prefix_object(
+ if2_ip, 96 if if2_ip.version == 6 else 24
+ )
)
- )
- err_msg = f"Failed to set IP address on interface {if2_key} " \
- f"on host {nodes[u'DUT2'][u'host']}"
- papi_exec.add(cmd1, **args1).get_reply(err_msg)
+ err_msg = f"Failed to set IP address on interface {if2_key} " \
+ f"on host {nodes[u'DUT2'][u'host']}"
+ papi_exec.add(cmd1, **args1).get_reply(err_msg)
# Configure IPsec tunnel interfaces
cmd2 = u"ipsec_tunnel_if_add_del"
args2 = dict(
)
err_msg = f"Failed to add IPsec tunnel interfaces " \
f"on host {nodes[u'DUT2'][u'host']}"
- ipsec_tunnels = list()
- for i in range(n_tunnels):
+ ipsec_tunnels = [None] * existing_tunnels
+ for i in range(existing_tunnels, n_tunnels):
args2[u"local_spi"] = spi_2 + i
args2[u"remote_spi"] = spi_1 + i
args2[u"local_ip"] = IPUtil.create_ip_address_object(if2_ip)
for reply in replies:
if u"sw_if_index" in reply:
ipsec_tunnels.append(reply[u"sw_if_index"])
- # Configure IP routes
- cmd1 = u"ip_route_add_del"
- route = IPUtil.compose_vpp_route_structure(
- nodes[u"DUT2"], if1_ip.compressed,
- prefix_len=32 if if1_ip.version == 6 else 8,
- interface=if2_key,
- gateway=(if2_ip - 1).compressed
- )
- args1 = dict(
- is_add=1,
- is_multipath=0,
- route=route
- )
- papi_exec.add(cmd1, **args1)
+ if not existing_tunnels:
+ # Configure IP routes
+ cmd1 = u"ip_route_add_del"
+ route = IPUtil.compose_vpp_route_structure(
+ nodes[u"DUT2"], if1_ip.compressed,
+ prefix_len=32 if if1_ip.version == 6 else 8,
+ interface=if2_key,
+ gateway=(if2_ip - 1).compressed
+ )
+ args1 = dict(
+ is_add=1,
+ is_multipath=0,
+ route=route
+ )
+ papi_exec.add(cmd1, **args1)
cmd1 = u"sw_interface_set_unnumbered"
args1 = dict(
is_add=True,
)
err_msg = f"Failed to add IP routes " \
f"on host {nodes[u'DUT2'][u'host']}"
- for i in range(n_tunnels):
+ for i in range(existing_tunnels, n_tunnels):
args1[u"unnumbered_sw_if_index"] = ipsec_tunnels[i]
args2[u"sw_if_index"] = ipsec_tunnels[i]
args3[u"route"] = IPUtil.compose_vpp_route_structure(
Code Review / csit.git / blobdiff