+ :type is_ipv6: bool
+ """
+ if laddr_range is None:
+ laddr_range = u"::/0" if is_ipv6 else u"0.0.0.0/0"
+
+ if raddr_range is None:
+ raddr_range = u"::/0" if is_ipv6 else u"0.0.0.0/0"
+
+ cmd = u"ipsec_spd_entry_add_del"
+ err_msg = f"Failed to add entry to Security Policy Database {spd_id} " \
+ f"on host {node[u'host']}"
+
+ spd_entry = dict(
+ spd_id=int(spd_id),
+ priority=int(priority),
+ is_outbound=not inbound,
+ sa_id=int(sa_id) if sa_id else 0,
+ policy=action.policy_int_repr,
+ protocol=int(proto) if proto else 0,
+ remote_address_start=IPAddress.create_ip_address_object(
+ ip_network(raddr_range, strict=False).network_address
+ ),
+ remote_address_stop=IPAddress.create_ip_address_object(
+ ip_network(raddr_range, strict=False).broadcast_address
+ ),
+ local_address_start=IPAddress.create_ip_address_object(
+ ip_network(laddr_range, strict=False).network_address
+ ),
+ local_address_stop=IPAddress.create_ip_address_object(
+ ip_network(laddr_range, strict=False).broadcast_address
+ ),
+ remote_port_start=int(rport_range.split(u"-")[0]) if rport_range
+ else 0,
+ remote_port_stop=int(rport_range.split(u"-")[1]) if rport_range
+ else 65535,
+ local_port_start=int(lport_range.split(u"-")[0]) if lport_range
+ else 0,
+ local_port_stop=int(lport_range.split(u"-")[1]) if rport_range
+ else 65535
+ )
+ args = dict(
+ is_add=True,
+ entry=spd_entry
+ )
+ with PapiSocketExecutor(node) as papi_exec:
+ papi_exec.add(cmd, **args).get_reply(err_msg)
+
+ @staticmethod
+ def vpp_ipsec_spd_add_entries(
+ node, n_entries, spd_id, priority, inbound, sa_id, raddr_ip,
+ raddr_range=0):
+ """Create multiple Security Policy Database entries on the VPP node.
+
+ :param node: VPP node to add SPD entries on.
+ :param n_entries: Number of SPD entries to be added.
+ :param spd_id: SPD ID to add entries on.
+ :param priority: SPD entries priority, higher number = higher priority.
+ :param inbound: If True policy is for inbound traffic, otherwise
+ outbound.
+ :param sa_id: SAD entry ID for first entry. Each subsequent entry will
+ SAD entry ID incremented by 1.
+ :param raddr_ip: Policy selector remote IPv4 start address for the first
+ entry. Remote IPv4 end address will be calculated depending on
+ raddr_range parameter. Each subsequent entry will have start address
+ next after IPv4 end address of previous entry.
+ :param raddr_range: Required IP addres range.
+ :type node: dict
+ :type n_entries: int
+ :type spd_id: int
+ :type priority: int
+ :type inbound: bool
+ :type sa_id: int
+ :type raddr_ip: str
+ :type raddr_range: int
+ """
+ raddr_ip = ip_address(raddr_ip)
+ if int(n_entries) > 10:
+ tmp_filename = f"/tmp/ipsec_spd_{sa_id}_add_del_entry.script"
+
+ with open(tmp_filename, 'w') as tmp_file:
+ for i in range(n_entries):
+ direction = u'inbound' if inbound else u'outbound'
+ tunnel = f"exec ipsec policy add spd {spd_id} " \
+ f"priority {priority} {direction} " \
+ f"action protect sa {sa_id+i} " \
+ f"remote-ip-range {raddr_ip + i * (raddr_range + 1)} " \
+ f"- {raddr_ip + (i + 1) * raddr_range + i} " \
+ f"local-ip-range 0.0.0.0 - 255.255.255.255\n"
+ tmp_file.write(tunnel)
+ VatExecutor().execute_script(
+ tmp_filename, node, timeout=300, json_out=False,
+ copy_on_execute=True
+ )
+ os.remove(tmp_filename)
+ return
+
+ laddr_range = u"::/0" if raddr_ip.version == 6 else u"0.0.0.0/0"
+
+ cmd = u"ipsec_spd_entry_add_del"
+ err_msg = f"ailed to add entry to Security Policy Database '{spd_id} " \
+ f"on host {node[u'host']}"
+
+ spd_entry = dict(
+ spd_id=int(spd_id),
+ priority=int(priority),
+ is_outbound=not inbound,
+ sa_id=int(sa_id) if sa_id else 0,
+ policy=getattr(PolicyAction.PROTECT, u"policy_int_repr"),
+ protocol=0,
+ remote_address_start=IPAddress.create_ip_address_object(raddr_ip),
+ remote_address_stop=IPAddress.create_ip_address_object(raddr_ip),
+ local_address_start=IPAddress.create_ip_address_object(
+ ip_network(laddr_range, strict=False).network_address
+ ),
+ local_address_stop=IPAddress.create_ip_address_object(
+ ip_network(laddr_range, strict=False).broadcast_address
+ ),
+ remote_port_start=0,
+ remote_port_stop=65535,
+ local_port_start=0,
+ local_port_stop=65535
+ )
+ args = dict(
+ is_add=True,
+ entry=spd_entry
+ )
+
+ with PapiSocketExecutor(node) as papi_exec:
+ for i in range(n_entries):
+ args[u"entry"][u"remote_address_start"][u"un"] = \
+ IPAddress.union_addr(raddr_ip + i)
+ args[u"entry"][u"remote_address_stop"][u"un"] = \
+ IPAddress.union_addr(raddr_ip + i)
+ history = bool(not 1 < i < n_entries - 2)
+ papi_exec.add(cmd, history=history, **args)
+ papi_exec.get_replies(err_msg)
+
+ @staticmethod
+ def _ipsec_create_tunnel_interfaces_dut1_vat(
+ nodes, tun_ips, if1_key, if2_key, n_tunnels, crypto_alg, integ_alg,
+ raddr_ip2, addr_incr, spi_d, existing_tunnels=0):
+ """Create multiple IPsec tunnel interfaces on DUT1 node using VAT.
+
+ :param nodes: VPP nodes to create tunnel interfaces.
+ :param tun_ips: Dictionary with VPP node 1 ipsec tunnel interface
+ IPv4/IPv6 address (ip1) and VPP node 2 ipsec tunnel interface
+ IPv4/IPv6 address (ip2).
+ :param if1_key: VPP node 1 interface key from topology file.
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :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_ip2: Policy selector remote IPv4/IPv6 start address for the
+ first tunnel in direction node2->node1.
+ :param spi_d: Dictionary with SPIs for VPP node 1 and VPP node 2.
+ :param addr_incr: IP / IPv6 address incremental step.
+ :param existing_tunnels: Number of tunnel interfaces before creation.
+ Useful mainly for reconf tests. Default 0.
+ :type nodes: dict
+ :type tun_ips: dict
+ :type if1_key: str
+ :type if2_key: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type integ_alg: IntegAlg
+ :type raddr_ip2: IPv4Address or IPv6Address
+ :type addr_incr: int
+ :type spi_d: dict
+ :type existing_tunnels: int
+ """
+ tmp_fn1 = u"/tmp/ipsec_create_tunnel_dut1.config"
+ if1_n = Topology.get_interface_name(nodes[u"DUT1"], if1_key)
+
+ ckeys = [bytes()] * existing_tunnels
+ ikeys = [bytes()] * existing_tunnels
+
+ vat = VatExecutor()
+ with open(tmp_fn1, u"w") as tmp_f1:
+ rmac = Topology.get_interface_mac(nodes[u"DUT2"], if2_key) \
+ if u"DUT2" in nodes.keys() \
+ else Topology.get_interface_mac(nodes[u"TG"], if2_key)
+ 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 {if1_n} "
+ f"{tun_ips[u'ip2'] - 1}/"
+ f"{len(tun_ips[u'ip2'].packed)*8*3//4}\n"
+ f"exec set ip neighbor {if1_n} {tun_ips[u'ip2']} {rmac} "
+ f"static\n"
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ ckeys.append(
+ gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg))
+ )
+ if integ_alg:
+ ikeys.append(
+ gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg))
+ )
+ integ = f"integ_alg {integ_alg.alg_name} " \
+ f"local_integ_key {ikeys[i].hex()} " \
+ f"remote_integ_key {ikeys[i].hex()} "
+ else:
+ integ = u""
+ tmp_f1.write(
+ f"exec set interface ip address loop0 "
+ f"{tun_ips[u'ip1'] + i * addr_incr}/32\n"
+ f"ipsec_tunnel_if_add_del "
+ f"local_spi {spi_d[u'spi_1'] + i} "
+ f"remote_spi {spi_d[u'spi_2'] + i} "
+ f"crypto_alg {crypto_alg.alg_name} "
+ f"local_crypto_key {ckeys[i].hex()} "
+ f"remote_crypto_key {ckeys[i].hex()} "
+ f"{integ} "
+ f"local_ip {tun_ips[u'ip1'] + i * addr_incr} "
+ f"remote_ip {tun_ips[u'ip2']} "
+ f"instance {i}\n"
+ )
+ vat.execute_script(
+ tmp_fn1, nodes[u"DUT1"], timeout=1800, json_out=False,
+ copy_on_execute=True,
+ history=bool(n_tunnels < 100)
+ )
+ os.remove(tmp_fn1)
+
+ with open(tmp_fn1, 'w') as tmp_f1:
+ 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"
+ f"exec ip route add "
+ f"{raddr_ip2 + i}/{len(raddr_ip2.packed)*8} "
+ f"via ipip{i}\n"
+ )
+ vat.execute_script(
+ tmp_fn1, nodes[u"DUT1"], timeout=1800, json_out=False,
+ copy_on_execute=True,
+ history=bool(n_tunnels < 100)
+ )
+ os.remove(tmp_fn1)
+
+ return ckeys, ikeys
+
+ @staticmethod
+ def _ipsec_create_tunnel_interfaces_dut2_vat(
+ nodes, tun_ips, if2_key, n_tunnels, crypto_alg, ckeys, integ_alg,
+ ikeys, raddr_ip1, addr_incr, spi_d, existing_tunnels=0):
+ """Create multiple IPsec tunnel interfaces on DUT2 node using VAT.
+
+ :param nodes: VPP nodes to create tunnel interfaces.
+ :param tun_ips: Dictionary with VPP node 1 ipsec tunnel interface
+ IPv4/IPv6 address (ip1) and VPP node 2 ipsec tunnel interface
+ IPv4/IPv6 address (ip2).
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :param n_tunnels: Number of tunnel interfaces to be there at the end.
+ :param crypto_alg: The encryption algorithm name.
+ :param ckeys: List of encryption keys.
+ :param integ_alg: The integrity algorithm name.
+ :param ikeys: List of integrity keys.
+ :param spi_d: Dictionary with SPIs for VPP node 1 and VPP node 2.
+ :param addr_incr: IP / IPv6 address incremental step.
+ :param existing_tunnels: Number of tunnel interfaces before creation.
+ Useful mainly for reconf tests. Default 0.
+ :type nodes: dict
+ :type tun_ips: dict
+ :type if2_key: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type ckeys: list
+ :type integ_alg: IntegAlg
+ :type ikeys: list
+ :type addr_incr: int
+ :type spi_d: dict
+ :type existing_tunnels: int
+ """
+ tmp_fn2 = u"/tmp/ipsec_create_tunnel_dut2.config"
+ if2_n = Topology.get_interface_name(nodes[u"DUT2"], if2_key)
+
+ vat = VatExecutor()
+ with open(tmp_fn2, 'w') as tmp_f2:
+ if not existing_tunnels:
+ tmp_f2.write(
+ f"exec set interface ip address {if2_n}"
+ f" {tun_ips[u'ip2']}/{len(tun_ips[u'ip2'].packed)*8*3/4}\n"
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ if integ_alg:
+ integ = f"integ_alg {integ_alg.alg_name} " \
+ f"local_integ_key {ikeys[i].hex()} " \
+ f"remote_integ_key {ikeys[i].hex()} "
+ else:
+ integ = u""
+ tmp_f2.write(
+ f"ipsec_tunnel_if_add_del "
+ f"local_spi {spi_d[u'spi_2'] + i} "
+ f"remote_spi {spi_d[u'spi_1'] + i} "
+ f"crypto_alg {crypto_alg.alg_name} "
+ f"local_crypto_key {ckeys[i].hex()} "
+ f"remote_crypto_key {ckeys[i].hex()} "
+ f"{integ} "
+ f"local_ip {tun_ips[u'ip2']} "
+ f"remote_ip {tun_ips[u'ip1'] + i * addr_incr} "
+ f"instance {i}\n"
+ )
+ vat.execute_script(
+ tmp_fn2, nodes[u"DUT2"], timeout=1800, json_out=False,
+ copy_on_execute=True,
+ history=bool(n_tunnels < 100)
+ )
+ os.remove(tmp_fn2)
+
+ with open(tmp_fn2, 'w') as tmp_f2:
+ if not existing_tunnels:
+ tmp_f2.write(
+ f"exec ip route add {tun_ips[u'ip1']}/8 "
+ f"via {tun_ips[u'ip2'] - 1} {if2_n}\n"
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ tmp_f2.write(
+ f"exec set interface unnumbered ipip{i} use {if2_n}\n"
+ f"exec set interface state ipip{i} up\n"
+ f"exec ip route add "
+ f"{raddr_ip1 + i}/{len(raddr_ip1.packed)*8} "
+ f"via ipip{i}\n"
+ )
+ vat.execute_script(
+ tmp_fn2, nodes[u"DUT2"], timeout=1800, json_out=False,
+ copy_on_execute=True,
+ history=bool(n_tunnels < 100)
+ )
+ os.remove(tmp_fn2)
+
+ @staticmethod
+ def _ipsec_create_loopback_dut1_papi(nodes, tun_ips, if1_key, if2_key):
+ """Create loopback interface and set IP address on VPP node 1 interface
+ using PAPI.
+
+ :param nodes: VPP nodes to create tunnel interfaces.
+ :param tun_ips: Dictionary with VPP node 1 ipsec tunnel interface
+ IPv4/IPv6 address (ip1) and VPP node 2 ipsec tunnel interface
+ IPv4/IPv6 address (ip2).
+ :param if1_key: VPP node 1 interface key from topology file.
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :type nodes: dict
+ :type tun_ips: dict
+ :type if1_key: str
+ :type if2_key: str
+ """
+ with PapiSocketExecutor(nodes[u"DUT1"]) as papi_exec:
+ # Create loopback interface on DUT1, set it to up state
+ cmd = u"create_loopback"
+ args = 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(cmd, **args). \
+ get_sw_if_index(err_msg)
+ cmd = u"sw_interface_set_flags"
+ args = 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(cmd, **args).get_reply(err_msg)
+ # Set IP address on VPP node 1 interface
+ cmd = u"sw_interface_add_del_address"
+ args = dict(
+ sw_if_index=InterfaceUtil.get_interface_index(
+ nodes[u"DUT1"], if1_key
+ ),
+ is_add=True,
+ del_all=False,
+ prefix=IPUtil.create_prefix_object(
+ tun_ips[u"ip2"] - 1, 96 if tun_ips[u"ip2"].version == 6
+ else 24
+ )
+ )
+ err_msg = f"Failed to set IP address on interface {if1_key} " \
+ f"on host {nodes[u'DUT1'][u'host']}"
+ papi_exec.add(cmd, **args).get_reply(err_msg)
+ cmd2 = u"ip_neighbor_add_del"
+ args2 = 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)
+ if u"DUT2" in nodes.keys()
+ else Topology.get_interface_mac(
+ nodes[u"TG"], if2_key
+ )
+ ),
+ ip_address=tun_ips[u"ip2"].compressed
+ )
+ )
+ err_msg = f"Failed to add IP neighbor on interface {if1_key}"
+ papi_exec.add(cmd2, **args2).get_reply(err_msg)
+
+ return loop_sw_if_idx
+
+ @staticmethod
+ def _ipsec_create_tunnel_interfaces_dut1_papi(
+ nodes, tun_ips, if1_key, if2_key, n_tunnels, crypto_alg, integ_alg,
+ raddr_ip2, addr_incr, spi_d, existing_tunnels=0):
+ """Create multiple IPsec tunnel interfaces on DUT1 node using PAPI.
+
+ :param nodes: VPP nodes to create tunnel interfaces.
+ :param tun_ips: Dictionary with VPP node 1 ipsec tunnel interface
+ IPv4/IPv6 address (ip1) and VPP node 2 ipsec tunnel interface
+ IPv4/IPv6 address (ip2).
+ :param if1_key: VPP node 1 interface key from topology file.
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :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_ip2: Policy selector remote IPv4/IPv6 start address for the
+ first tunnel in direction node2->node1.
+ :param spi_d: Dictionary with SPIs for VPP node 1 and VPP node 2.
+ :param addr_incr: IP / IPv6 address incremental step.
+ :param existing_tunnels: Number of tunnel interfaces before creation.
+ Useful mainly for reconf tests. Default 0.
+ :type nodes: dict
+ :type tun_ips: dict
+ :type if1_key: str
+ :type if2_key: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type integ_alg: IntegAlg
+ :type raddr_ip2: IPv4Address or IPv6Address
+ :type addr_incr: int
+ :type spi_d: dict
+ :type existing_tunnels: int
+ """
+ if not existing_tunnels:
+ loop_sw_if_idx = IPsecUtil._ipsec_create_loopback_dut1_papi(
+ nodes, tun_ips, if1_key, if2_key
+ )
+ else:
+ loop_sw_if_idx = InterfaceUtil.vpp_get_interface_sw_index(
+ nodes[u"DUT1"], u"loop0"
+ )
+ with PapiSocketExecutor(nodes[u"DUT1"]) as papi_exec:
+ # Configure IP addresses on loop0 interface
+ cmd = u"sw_interface_add_del_address"
+ args = dict(
+ sw_if_index=loop_sw_if_idx,
+ is_add=True,
+ del_all=False,
+ prefix=None
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"prefix"] = IPUtil.create_prefix_object(
+ tun_ips[u"ip1"] + i * addr_incr,
+ 128 if tun_ips[u"ip1"].version == 6 else 32
+ )
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ # Configure IPsec tunnel interfaces
+ cmd = u"ipsec_tunnel_if_add_del"
+ args = dict(
+ is_add=True,
+ local_ip=None,
+ remote_ip=None,
+ local_spi=0,
+ remote_spi=0,
+ crypto_alg=crypto_alg.alg_int_repr,
+ local_crypto_key_len=0,
+ local_crypto_key=None,
+ remote_crypto_key_len=0,
+ remote_crypto_key=None,
+ integ_alg=integ_alg.alg_int_repr if integ_alg else 0,
+ local_integ_key_len=0,
+ local_integ_key=None,
+ remote_integ_key_len=0,
+ remote_integ_key=None,
+ tx_table_id=0
+ )
+ ipsec_tunnels = [None] * existing_tunnels
+ ckeys = [bytes()] * existing_tunnels
+ ikeys = [bytes()] * existing_tunnels
+ for i in range(existing_tunnels, n_tunnels):
+ ckeys.append(
+ gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg))
+ )
+ if integ_alg:
+ ikeys.append(
+ gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg))
+ )
+ args[u"local_spi"] = spi_d[u"spi_1"] + i
+ args[u"remote_spi"] = spi_d[u"spi_2"] + i
+ args[u"local_ip"] = IPAddress.create_ip_address_object(
+ tun_ips[u"ip1"] + i * addr_incr
+ )
+ args[u"remote_ip"] = IPAddress.create_ip_address_object(
+ tun_ips[u"ip2"]
+ )
+ args[u"local_crypto_key_len"] = len(ckeys[i])
+ args[u"local_crypto_key"] = ckeys[i]
+ args[u"remote_crypto_key_len"] = len(ckeys[i])
+ args[u"remote_crypto_key"] = ckeys[i]
+ if integ_alg:
+ args[u"local_integ_key_len"] = len(ikeys[i])
+ args[u"local_integ_key"] = ikeys[i]
+ args[u"remote_integ_key_len"] = len(ikeys[i])
+ args[u"remote_integ_key"] = ikeys[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ err_msg = f"Failed to add IPsec tunnel interfaces on host" \
+ f" {nodes[u'DUT1'][u'host']}"
+ ipsec_tunnels.extend(
+ [
+ reply[u"sw_if_index"]
+ for reply in papi_exec.get_replies(err_msg)
+ if u"sw_if_index" in reply
+ ]
+ )
+ # Configure unnumbered interfaces
+ cmd = u"sw_interface_set_unnumbered"
+ args = dict(
+ is_add=True,
+ sw_if_index=InterfaceUtil.get_interface_index(
+ nodes[u"DUT1"], if1_key
+ ),
+ unnumbered_sw_if_index=0
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"unnumbered_sw_if_index"] = ipsec_tunnels[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ # Set interfaces up
+ cmd = u"sw_interface_set_flags"
+ args = dict(
+ sw_if_index=0,
+ flags=InterfaceStatusFlags.IF_STATUS_API_FLAG_ADMIN_UP.value
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"sw_if_index"] = ipsec_tunnels[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ # Configure IP routes
+ cmd = u"ip_route_add_del"
+ args = dict(
+ is_add=1,
+ is_multipath=0,
+ route=None
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"route"] = IPUtil.compose_vpp_route_structure(
+ nodes[u"DUT1"], (raddr_ip2 + i).compressed,
+ prefix_len=128 if raddr_ip2.version == 6 else 32,
+ interface=ipsec_tunnels[i]
+ )
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ err_msg = f"Failed to add IP routes on host " \
+ f"{nodes[u'DUT1'][u'host']}"
+ papi_exec.get_replies(err_msg)
+
+ return ckeys, ikeys
+
+ @staticmethod
+ def _ipsec_create_tunnel_interfaces_dut2_papi(
+ nodes, tun_ips, if2_key, n_tunnels, crypto_alg, ckeys, integ_alg,
+ ikeys, raddr_ip1, addr_incr, spi_d, existing_tunnels=0):
+ """Create multiple IPsec tunnel interfaces on DUT2 node using PAPI.
+
+ :param nodes: VPP nodes to create tunnel interfaces.
+ :param tun_ips: Dictionary with VPP node 1 ipsec tunnel interface
+ IPv4/IPv6 address (ip1) and VPP node 2 ipsec tunnel interface
+ IPv4/IPv6 address (ip2).
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :param n_tunnels: Number of tunnel interfaces to be there at the end.
+ :param crypto_alg: The encryption algorithm name.
+ :param ckeys: List of encryption keys.
+ :param integ_alg: The integrity algorithm name.
+ :param ikeys: List of integrity keys.
+ :param spi_d: Dictionary with SPIs for VPP node 1 and VPP node 2.
+ :param addr_incr: IP / IPv6 address incremental step.
+ :param existing_tunnels: Number of tunnel interfaces before creation.
+ Useful mainly for reconf tests. Default 0.
+ :type nodes: dict
+ :type tun_ips: dict
+ :type if2_key: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type ckeys: list
+ :type integ_alg: IntegAlg
+ :type ikeys: list
+ :type addr_incr: int
+ :type spi_d: dict
+ :type existing_tunnels: int
+ """
+ with PapiSocketExecutor(nodes[u"DUT2"]) as papi_exec:
+ if not existing_tunnels:
+ # Set IP address on VPP node 2 interface
+ cmd = u"sw_interface_add_del_address"
+ args = dict(
+ sw_if_index=InterfaceUtil.get_interface_index(
+ nodes[u"DUT2"], if2_key
+ ),
+ is_add=True,
+ del_all=False,
+ prefix=IPUtil.create_prefix_object(
+ tun_ips[u"ip2"], 96 if tun_ips[u"ip2"].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(cmd, **args).get_reply(err_msg)
+ # Configure IPsec tunnel interfaces
+ cmd = u"ipsec_tunnel_if_add_del"
+ args = dict(
+ is_add=True,
+ local_ip=IPAddress.create_ip_address_object(tun_ips[u"ip2"]),
+ remote_ip=None,
+ local_spi=0,
+ remote_spi=0,
+ crypto_alg=crypto_alg.alg_int_repr,
+ local_crypto_key_len=0,
+ local_crypto_key=None,
+ remote_crypto_key_len=0,
+ remote_crypto_key=None,
+ integ_alg=integ_alg.alg_int_repr if integ_alg else 0,
+ local_integ_key_len=0,
+ local_integ_key=None,
+ remote_integ_key_len=0,
+ remote_integ_key=None,
+ tx_table_id=0
+ )
+ ipsec_tunnels = [None] * existing_tunnels
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"local_spi"] = spi_d[u"spi_2"] + i
+ args[u"remote_spi"] = spi_d[u"spi_1"] + i
+ args[u"local_ip"] = IPAddress.create_ip_address_object(
+ tun_ips[u"ip2"]
+ )
+ args[u"remote_ip"] = IPAddress.create_ip_address_object(
+ tun_ips[u"ip1"] + i * addr_incr
+ )
+ args[u"local_crypto_key_len"] = len(ckeys[i])
+ args[u"local_crypto_key"] = ckeys[i]
+ args[u"remote_crypto_key_len"] = len(ckeys[i])
+ args[u"remote_crypto_key"] = ckeys[i]
+ if integ_alg:
+ args[u"local_integ_key_len"] = len(ikeys[i])
+ args[u"local_integ_key"] = ikeys[i]
+ args[u"remote_integ_key_len"] = len(ikeys[i])
+ args[u"remote_integ_key"] = ikeys[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ err_msg = f"Failed to add IPsec tunnel interfaces " \
+ f"on host {nodes[u'DUT2'][u'host']}"
+ ipsec_tunnels.extend(
+ [
+ reply[u"sw_if_index"]
+ for reply in papi_exec.get_replies(err_msg)
+ if u"sw_if_index" in reply
+ ]
+ )
+ if not existing_tunnels:
+ # Configure IP route
+ cmd = u"ip_route_add_del"
+ route = IPUtil.compose_vpp_route_structure(
+ nodes[u"DUT2"], tun_ips[u"ip1"].compressed,
+ prefix_len=32 if tun_ips[u"ip1"].version == 6 else 8,
+ interface=if2_key,
+ gateway=(tun_ips[u"ip2"] - 1).compressed
+ )
+ args = dict(
+ is_add=1,
+ is_multipath=0,
+ route=route
+ )
+ papi_exec.add(cmd, **args)
+ # Configure unnumbered interfaces
+ cmd = u"sw_interface_set_unnumbered"
+ args = dict(
+ is_add=True,
+ sw_if_index=InterfaceUtil.get_interface_index(
+ nodes[u"DUT2"], if2_key
+ ),
+ unnumbered_sw_if_index=0
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"unnumbered_sw_if_index"] = ipsec_tunnels[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ # Set interfaces up
+ cmd = u"sw_interface_set_flags"
+ args = dict(
+ sw_if_index=0,
+ flags=InterfaceStatusFlags.IF_STATUS_API_FLAG_ADMIN_UP.value
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"sw_if_index"] = ipsec_tunnels[i]
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ # Configure IP routes
+ cmd = u"ip_route_add_del"
+ args = dict(
+ is_add=1,
+ is_multipath=0,
+ route=None
+ )
+ for i in range(existing_tunnels, n_tunnels):
+ args[u"route"] = IPUtil.compose_vpp_route_structure(
+ nodes[u"DUT1"], (raddr_ip1 + i).compressed,
+ prefix_len=128 if raddr_ip1.version == 6 else 32,
+ interface=ipsec_tunnels[i]
+ )
+ papi_exec.add(
+ cmd, history=bool(not 1 < i < n_tunnels - 2), **args
+ )
+ err_msg = f"Failed to add IP routes " \
+ f"on host {nodes[u'DUT2'][u'host']}"
+ papi_exec.get_replies(err_msg)
+
+ @staticmethod
+ def vpp_ipsec_create_tunnel_interfaces(
+ nodes, tun_if1_ip_addr, tun_if2_ip_addr, if1_key, if2_key,
+ n_tunnels, 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 tun_if1_ip_addr: VPP node 1 ipsec tunnel interface IPv4/IPv6
+ address.
+ :param tun_if2_ip_addr: VPP node 2 ipsec tunnel interface IPv4/IPv6
+ address.
+ :param if1_key: VPP node 1 interface key from topology file.
+ :param if2_key: VPP node 2 / TG node (in case of 2-node topology)
+ interface key from topology file.
+ :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
+ first tunnel in direction node1->node2.
+ :param raddr_ip2: Policy selector remote IPv4/IPv6 start address for the
+ first tunnel in direction node2->node1.
+ :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 tun_if1_ip_addr: str
+ :type tun_if2_ip_addr: str
+ :type if1_key: str
+ :type if2_key: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type integ_alg: IntegAlg
+ :type raddr_ip1: string
+ :type raddr_ip2: string
+ :type raddr_range: int
+ :type existing_tunnels: int