X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2FIPsecUtil.py;h=63fb6f1e8ec3a1c9959feea711086b7dc6472d7d;hb=e08706e85b412b1307df3789fdbe747b43c2bd95;hp=9237769d45c21bf886c4c3ca94f0203c25570d86;hpb=d68951ac245150eeefa6e0f4156e4c1b5c9e9325;p=csit.git diff --git a/resources/libraries/python/IPsecUtil.py b/resources/libraries/python/IPsecUtil.py index 9237769d45..63fb6f1e8e 100644 --- a/resources/libraries/python/IPsecUtil.py +++ b/resources/libraries/python/IPsecUtil.py @@ -1,4 +1,4 @@ -# 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: @@ -22,10 +22,12 @@ from string import ascii_letters from ipaddress import ip_network, ip_address -from resources.libraries.python.IPUtil import IPUtil from resources.libraries.python.InterfaceUtil import InterfaceUtil, \ InterfaceStatusFlags +from resources.libraries.python.IPAddress import IPAddress +from resources.libraries.python.IPUtil import IPUtil from resources.libraries.python.PapiExecutor import PapiSocketExecutor +from resources.libraries.python.ssh import scp_node from resources.libraries.python.topology import Topology from resources.libraries.python.VatExecutor import VatExecutor @@ -82,8 +84,8 @@ class IntegAlg(Enum): class IPsecProto(IntEnum): """IPsec protocol.""" - ESP = 1 - SEC_AH = 0 + IPSEC_API_PROTO_ESP = 50 + IPSEC_API_PROTO_AH = 51 class IPsecSadFlags(IntEnum): @@ -228,7 +230,7 @@ class IPsecUtil: :returns: IPsecProto enum ESP object. :rtype: IPsecProto """ - return int(IPsecProto.ESP) + return int(IPsecProto.IPSEC_API_PROTO_ESP) @staticmethod def ipsec_proto_ah(): @@ -237,7 +239,7 @@ class IPsecUtil: :returns: IPsecProto enum AH object. :rtype: IPsecProto """ - return int(IPsecProto.SEC_AH) + return int(IPsecProto.IPSEC_API_PROTO_AH) @staticmethod def vpp_ipsec_select_backend(node, protocol, index=1): @@ -261,17 +263,6 @@ class IPsecUtil: with PapiSocketExecutor(node) as papi_exec: papi_exec.add(cmd, **args).get_reply(err_msg) - @staticmethod - def vpp_ipsec_backend_dump(node): - """Dump IPsec backends. - - :param node: VPP node to dump IPsec backend on. - :type node: dict - """ - err_msg = f"Failed to dump IPsec backends on host {node[u'host']}" - with PapiSocketExecutor(node) as papi_exec: - papi_exec.add(u"ipsec_backend_dump").get_details(err_msg) - @staticmethod def vpp_ipsec_add_sad_entry( node, sad_id, spi, crypto_alg, crypto_key, integ_alg=None, @@ -337,10 +328,12 @@ class IPsecUtil: flags=flags, tunnel_src=str(src_addr), tunnel_dst=str(dst_addr), - protocol=int(IPsecProto.ESP) + protocol=int(IPsecProto.IPSEC_API_PROTO_ESP), + udp_src_port=4500, # default value in api + udp_dst_port=4500 # default value in api ) args = dict( - is_add=1, + is_add=True, entry=sad_entry ) with PapiSocketExecutor(node) as papi_exec: @@ -446,10 +439,12 @@ class IPsecUtil: flags=flags, tunnel_src=str(src_addr), tunnel_dst=str(dst_addr), - protocol=int(IPsecProto.ESP) + protocol=int(IPsecProto.IPSEC_API_PROTO_ESP), + udp_src_port=4500, # default value in api + udp_dst_port=4500 # default value in api ) args = dict( - is_add=1, + is_add=True, entry=sad_entry ) with PapiSocketExecutor(node) as papi_exec: @@ -487,10 +482,10 @@ class IPsecUtil: :type interface: str :type raddr_range: int """ - laddr = ip_address(tunnel_src) - raddr = ip_address(tunnel_dst) - taddr = ip_address(traffic_addr) - addr_incr = 1 << (128 - raddr_range) if laddr.version == 6 \ + tunnel_src = ip_address(tunnel_src) + tunnel_dst = ip_address(tunnel_dst) + traffic_addr = ip_address(traffic_addr) + addr_incr = 1 << (128 - raddr_range) if tunnel_src.version == 6 \ else 1 << (32 - raddr_range) if int(n_tunnels) > 10: @@ -500,13 +495,12 @@ class IPsecUtil: if_name = Topology.get_interface_name(node, interface) for i in range(n_tunnels): conf = f"exec set interface ip address {if_name} " \ - f"{laddr + i * addr_incr}/{raddr_range}\n" \ - f"exec ip route add {taddr + i}/" \ - f"{128 if taddr.version == 6 else 32} " \ - f"via {raddr + i * addr_incr} {if_name}\n" + f"{tunnel_src + i * addr_incr}/{raddr_range}\n" \ + f"exec ip route add {traffic_addr + i}/" \ + f"{128 if traffic_addr.version == 6 else 32} " \ + f"via {tunnel_dst + i * addr_incr} {if_name}\n" tmp_file.write(conf) - vat = VatExecutor() - vat.execute_script( + VatExecutor().execute_script( tmp_filename, node, timeout=300, json_out=False, copy_on_execute=True ) @@ -532,12 +526,12 @@ class IPsecUtil: with PapiSocketExecutor(node) as papi_exec: for i in range(n_tunnels): args1[u"prefix"] = IPUtil.create_prefix_object( - laddr + i * addr_incr, raddr_range + tunnel_src + i * addr_incr, raddr_range ) args2[u"route"] = IPUtil.compose_vpp_route_structure( - node, taddr + i, - prefix_len=128 if taddr.version == 6 else 32, - interface=interface, gateway=raddr + i * addr_incr + node, traffic_addr + i, + prefix_len=128 if traffic_addr.version == 6 else 32, + interface=interface, gateway=tunnel_dst + i * addr_incr ) history = bool(not 1 < i < n_tunnels - 2) papi_exec.add(cmd1, history=history, **args1).\ @@ -557,7 +551,7 @@ class IPsecUtil: err_msg = f"Failed to add Security Policy Database " \ f"on host {node[u'host']}" args = dict( - is_add=1, + is_add=True, spd_id=int(spd_id) ) with PapiSocketExecutor(node) as papi_exec: @@ -578,7 +572,7 @@ class IPsecUtil: err_msg = f"Failed to add interface {interface} to Security Policy " \ f"Database {spd_id} on host {node[u'host']}" args = dict( - is_add=1, + is_add=True, sw_if_index=InterfaceUtil.get_interface_index(node, interface), spd_id=int(spd_id) ) @@ -638,20 +632,20 @@ class IPsecUtil: spd_entry = dict( spd_id=int(spd_id), priority=int(priority), - is_outbound=0 if inbound else 1, + 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=IPUtil.create_ip_address_object( + remote_address_start=IPAddress.create_ip_address_object( ip_network(raddr_range, strict=False).network_address ), - remote_address_stop=IPUtil.create_ip_address_object( + remote_address_stop=IPAddress.create_ip_address_object( ip_network(raddr_range, strict=False).broadcast_address ), - local_address_start=IPUtil.create_ip_address_object( + local_address_start=IPAddress.create_ip_address_object( ip_network(laddr_range, strict=False).network_address ), - local_address_stop=IPUtil.create_ip_address_object( + 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 @@ -664,7 +658,7 @@ class IPsecUtil: else 65535 ) args = dict( - is_add=1, + is_add=True, entry=spd_entry ) with PapiSocketExecutor(node) as papi_exec: @@ -728,16 +722,16 @@ class IPsecUtil: spd_entry = dict( spd_id=int(spd_id), priority=int(priority), - is_outbound=0 if inbound else 1, + is_outbound=not inbound, sa_id=int(sa_id) if sa_id else 0, - policy=IPsecUtil.policy_action_protect().policy_int_repr, + policy=getattr(PolicyAction.PROTECT, u"policy_int_repr"), protocol=0, - remote_address_start=IPUtil.create_ip_address_object(raddr_ip), - remote_address_stop=IPUtil.create_ip_address_object(raddr_ip), - local_address_start=IPUtil.create_ip_address_object( + 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=IPUtil.create_ip_address_object( + local_address_stop=IPAddress.create_ip_address_object( ip_network(laddr_range, strict=False).broadcast_address ), remote_port_start=0, @@ -746,195 +740,270 @@ class IPsecUtil: local_port_stop=65535 ) args = dict( - is_add=1, + 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"] = \ - IPUtil.union_addr(raddr_ip + i) + IPAddress.union_addr(raddr_ip + i) args[u"entry"][u"remote_address_stop"][u"un"] = \ - IPUtil.union_addr(raddr_ip + i) + 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 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): - """Create multiple IPsec tunnel interfaces between two VPP nodes. + 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 if1_ip_addr: VPP node 1 interface IPv4/IPv6 address. - :param if2_ip_addr: VPP node 2 interface IPv4/IPv6 address. + :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 interface key from topology file. - :param n_tunnels: Number of tunnel interfaces to create. + :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 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 if1_ip_addr: str - :type if2_ip_addr: str + :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_ip1: string - :type raddr_ip2: string - :type raddr_range: int + :type raddr_ip2: IPv4Address or IPv6Address + :type addr_incr: int + :type spi_d: dict + :type existing_tunnels: int """ - n_tunnels = int(n_tunnels) - spi_1 = 100000 - spi_2 = 200000 - if1_ip = ip_address(if1_ip_addr) - if2_ip = ip_address(if2_ip_addr) - raddr_ip1 = ip_address(raddr_ip1) - raddr_ip2 = ip_address(raddr_ip2) - addr_incr = 1 << (128 - raddr_range) if if1_ip.version == 6 \ - else 1 << (32 - raddr_range) - - if n_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) - if2_n = Topology.get_interface_name(nodes[u"DUT2"], if2_key) - mask = 96 if if2_ip.version == 6 else 24 - mask2 = 128 if if2_ip.version == 6 else 32 - 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_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 " - f"{if1_n} {if2_ip - 1}/{mask}\n" - f"exec set ip arp {if1_n} {if2_ip}/{mask2} {rmac} static\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" ) - tmp_f2.write( - f"exec set interface ip address {if2_n} {if2_ip}/{mask}\n" + for i in range(existing_tunnels, n_tunnels): + ckeys.append( + gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg)) ) - for i in range(n_tunnels): - ckey = gen_key( - IPsecUtil.get_crypto_alg_key_len(crypto_alg) - ).hex() - if integ_alg: - ikey = gen_key( - IPsecUtil.get_integ_alg_key_len(integ_alg) - ).hex() - integ = f"integ_alg {integ_alg.alg_name} " \ - f"local_integ_key {ikey} remote_integ_key {ikey} " - else: - integ = u"" - tmp_f1.write( - f"exec set interface ip address loop0 " - f"{if1_ip + i * addr_incr}/32\n" - f"ipsec_tunnel_if_add_del " - f"local_spi {spi_1 + i} remote_spi {spi_2 + i} " - f"crypto_alg {crypto_alg.alg_name} " - f"local_crypto_key {ckey} remote_crypto_key {ckey} " - f"{integ} " - f"local_ip {if1_ip + i * addr_incr} " - f"remote_ip {if2_ip}\n" - ) - tmp_f2.write( - f"ipsec_tunnel_if_add_del " - f"local_spi {spi_2 + i} remote_spi {spi_1 + i} " - f"crypto_alg {crypto_alg.alg_name} " - f"local_crypto_key {ckey} remote_crypto_key {ckey} " - f"{integ} " - f"local_ip {if2_ip} " - f"remote_ip {if1_ip + i * addr_incr}\n" + if integ_alg: + ikeys.append( + gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg)) ) - vat.execute_script( - tmp_fn1, nodes[u"DUT1"], timeout=1800, json_out=False, - copy_on_execute=True, - history=bool(n_tunnels < 100) - ) - 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_fn1) - os.remove(tmp_fn2) + 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. - with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2: - raddr = ip_network(if1_ip_addr + u"/8", False) + :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 ip route add {raddr} via {if2_n} {if2_ip - 1}\n" + 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(n_tunnels): - tmp_f1.write( - f"exec set interface unnumbered ipsec{i} use {if1_n}\n" - f"exec set interface state ipsec{i} up\n" - f"exec ip route add {raddr_ip2 + i}/{mask2} " - f"via ipsec{i}\n" - ) - tmp_f2.write( - f"exec set interface unnumbered ipsec{i} use {if2_n}\n" - f"exec set interface state ipsec{i} up\n" - f"exec ip route add {raddr_ip1 + i}/{mask2} " - f"via ipsec{i}\n" - ) - vat.execute_script( - tmp_fn1, nodes[u"DUT1"], timeout=1800, json_out=False, - copy_on_execute=True, - history=bool(n_tunnels < 100) - ) - 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_fn1) - os.remove(tmp_fn2) - return + 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 - cmd1 = u"create_loopback" - args1 = dict( + 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(cmd1, **args1).\ + loop_sw_if_idx = papi_exec.add(cmd, **args). \ get_sw_if_index(err_msg) - cmd1 = u"sw_interface_set_flags" - args1 = dict( + 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(cmd1, **args1).get_reply(err_msg) + papi_exec.add(cmd, **args).get_reply(err_msg) # Set IP address on VPP node 1 interface - cmd1 = u"sw_interface_add_del_address" - args1 = dict( + 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( - if2_ip - 1, 96 if if2_ip.version == 6 else 24 + 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(cmd1, **args1).get_reply(err_msg) - cmd4 = u"ip_neighbor_add_del" - args4 = dict( + 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( @@ -943,22 +1012,82 @@ class IPsecUtil: 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=str(ip_address(if2_ip_addr)) + ip_address=tun_ips[u"ip2"].compressed ) ) err_msg = f"Failed to add IP neighbor on interface {if1_key}" - papi_exec.add(cmd4, **args4).get_reply(err_msg) - # Configure IPsec tunnel interfaces - args1 = dict( + 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 ) - cmd2 = u"ipsec_tunnel_if_add_del" - args2 = dict( - is_add=1, + 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, @@ -975,12 +1104,10 @@ class IPsecUtil: remote_integ_key=None, tx_table_id=0 ) - 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 = [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)) ) @@ -988,88 +1115,138 @@ class IPsecUtil: ikeys.append( gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg)) ) - args1[u"prefix"] = IPUtil.create_prefix_object( - if1_ip + i * addr_incr, 128 if if1_ip.version == 6 else 32 + 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 ) - args2[u"local_spi"] = spi_1 + i - args2[u"remote_spi"] = spi_2 + i - args2[u"local_ip"] = IPUtil.create_ip_address_object( - if1_ip + i * addr_incr + args[u"remote_ip"] = IPAddress.create_ip_address_object( + tun_ips[u"ip2"] ) - args2[u"remote_ip"] = IPUtil.create_ip_address_object(if2_ip) - args2[u"local_crypto_key_len"] = len(ckeys[i]) - args2[u"local_crypto_key"] = ckeys[i] - args2[u"remote_crypto_key_len"] = len(ckeys[i]) - args2[u"remote_crypto_key"] = ckeys[i] + 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: - args2[u"local_integ_key_len"] = len(ikeys[i]) - args2[u"local_integ_key"] = ikeys[i] - args2[u"remote_integ_key_len"] = len(ikeys[i]) - args2[u"remote_integ_key"] = ikeys[i] - history = bool(not 1 < i < n_tunnels - 2) - papi_exec.add(cmd1, history=history, **args1).\ - add(cmd2, history=history, **args2) - replies = papi_exec.get_replies(err_msg) - for reply in replies: - if u"sw_if_index" in reply: - ipsec_tunnels.append(reply[u"sw_if_index"]) - # Configure IP routes - cmd1 = u"sw_interface_set_unnumbered" - args1 = dict( + 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 ) - cmd2 = u"sw_interface_set_flags" - args2 = dict( + 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 ) - cmd3 = u"ip_route_add_del" - args3 = dict( + 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 ) - err_msg = f"Failed to add IP routes " \ - f"on host {nodes[u'DUT1'][u'host']}" - for i in range(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( + 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] ) - history = bool(not 1 < i < n_tunnels - 2) - papi_exec.add(cmd1, history=history, **args1).\ - add(cmd2, history=history, **args2).\ - add(cmd3, history=history, **args3) + 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: - # 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 + 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(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(cmd, **args).get_reply(err_msg) # Configure IPsec tunnel interfaces - cmd2 = u"ipsec_tunnel_if_add_del" - args2 = dict( - is_add=1, - local_ip=IPUtil.create_ip_address_object(if2_ip), + 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, @@ -1085,79 +1262,329 @@ class IPsecUtil: 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 = list() - for i in range(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) - args2[u"remote_ip"] = IPUtil.create_ip_address_object( - if1_ip + i * addr_incr) - args2[u"local_crypto_key_len"] = len(ckeys[i]) - args2[u"local_crypto_key"] = ckeys[i] - args2[u"remote_crypto_key_len"] = len(ckeys[i]) - args2[u"remote_crypto_key"] = ckeys[i] - if integ_alg: - args2[u"local_integ_key_len"] = len(ikeys[i]) - args2[u"local_integ_key"] = ikeys[i] - args2[u"remote_integ_key_len"] = len(ikeys[i]) - args2[u"remote_integ_key"] = ikeys[i] - history = bool(not 1 < i < n_tunnels - 2) - papi_exec.add(cmd2, history=history, **args2) - replies = papi_exec.get_replies(err_msg) - 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 + ipsec_tunnels.extend( + [ + reply[u"sw_if_index"] + for reply in papi_exec.get_replies(err_msg) + if u"sw_if_index" in reply + ] ) - args1 = dict( - is_add=1, - is_multipath=0, - route=route - ) - papi_exec.add(cmd1, **args1) - cmd1 = u"sw_interface_set_unnumbered" - args1 = dict( + 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 ) - cmd2 = u"sw_interface_set_flags" - args2 = dict( + 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 ) - cmd3 = u"ip_route_add_del" - args3 = dict( + 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 ) - err_msg = f"Failed to add IP routes " \ - f"on host {nodes[u'DUT2'][u'host']}" - for i in range(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( + 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] ) - history = bool(not 1 < i < n_tunnels - 2) - papi_exec.add(cmd1, history=history, **args1). \ - add(cmd2, history=history, **args2). \ - add(cmd3, history=history, **args3) + 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 + """ + n_tunnels = int(n_tunnels) + existing_tunnels = int(existing_tunnels) + spi_d = dict( + spi_1=100000, + spi_2=200000 + ) + tun_ips = dict( + ip1=ip_address(tun_if1_ip_addr), + ip2=ip_address(tun_if2_ip_addr) + ) + raddr_ip1 = ip_address(raddr_ip1) + raddr_ip2 = ip_address(raddr_ip2) + addr_incr = 1 << (128 - raddr_range) if tun_ips[u"ip1"].version == 6 \ + else 1 << (32 - raddr_range) + + if n_tunnels - existing_tunnels > 10: + ckeys, ikeys = IPsecUtil._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 + ) + if u"DUT2" not in nodes.keys(): + return ckeys[0], ikeys[0], spi_d[u"spi_1"], spi_d[u"spi_2"] + IPsecUtil._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 + ) + else: + ckeys, ikeys = IPsecUtil._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 + ) + if u"DUT2" not in nodes.keys(): + return ckeys[0], ikeys[0], spi_d[u"spi_1"], spi_d[u"spi_2"] + IPsecUtil._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 + ) + + return None, None, None, None + + @staticmethod + def _create_ipsec_script_files(dut, instances): + """Create script files for configuring IPsec in containers + + :param dut: DUT node on which to create the script files + :param instances: number of containers on DUT node + :type dut: string + :type instances: int + """ + scripts = [] + for cnf in range(0, instances): + script_filename = ( + f"/tmp/ipsec_create_tunnel_cnf_{dut}_{cnf + 1}.config" + ) + scripts.append(open(script_filename, 'w')) + return scripts + + @staticmethod + def _close_and_copy_ipsec_script_files( + dut, nodes, instances, scripts): + """Close created scripts and copy them to containers + + :param dut: DUT node on which to create the script files + :param nodes: VPP nodes + :param instances: number of containers on DUT node + :param scripts: dictionary holding the script files + :type dut: string + :type nodes: dict + :type instances: int + :type scripts: dict + """ + for cnf in range(0, instances): + scripts[cnf].close() + script_filename = ( + f"/tmp/ipsec_create_tunnel_cnf_{dut}_{cnf + 1}.config" + ) + scp_node(nodes[dut], script_filename, script_filename) + + + @staticmethod + def vpp_ipsec_create_tunnel_interfaces_in_containers( + nodes, if1_ip_addr, if2_ip_addr, n_tunnels, crypto_alg, integ_alg, + raddr_ip1, raddr_ip2, raddr_range, n_instances): + """Create multiple IPsec tunnel interfaces between two VPP nodes. + + :param nodes: VPP nodes to create tunnel interfaces. + :param if1_ip_addr: VPP node 1 interface IP4 address. + :param if2_ip_addr: VPP node 2 interface IP4 address. + :param n_tunnels: Number of tunnell interfaces to create. + :param crypto_alg: The encryption algorithm name. + :param integ_alg: The integrity algorithm name. + :param raddr_ip1: Policy selector remote IPv4 start address for the + first tunnel in direction node1->node2. + :param raddr_ip2: Policy selector remote IPv4 start address for the + first tunnel in direction node2->node1. + :param raddr_range: Mask specifying range of Policy selector Remote + IPv4 addresses. Valid values are from 1 to 32. + :param n_instances: Number of containers. + :type nodes: dict + :type if1_ip_addr: str + :type if2_ip_addr: 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 n_instances: int + """ + spi_1 = 100000 + spi_2 = 200000 + addr_incr = 1 << (32 - raddr_range) + + dut1_scripts = IPsecUtil._create_ipsec_script_files( + u"DUT1", n_instances + ) + dut2_scripts = IPsecUtil._create_ipsec_script_files( + u"DUT2", n_instances + ) + + for cnf in range(0, n_instances): + dut1_scripts[cnf].write( + u"create loopback interface\n" + u"set interface state loop0 up\n\n" + ) + dut2_scripts[cnf].write( + f"ip route add {if1_ip_addr}/8 via " + f"{ip_address(if2_ip_addr) + cnf + 100} memif1/{cnf + 1}\n\n" + ) + + for tnl in range(0, n_tunnels): + cnf = tnl % n_instances + ckey = getattr( + gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg)), u"hex" + ) + integ = u"" + if integ_alg: + ikey = getattr( + gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg)), u"hex" + ) + integ = ( + f"integ-alg {integ_alg.alg_name} " + f"local-integ-key {ikey} " + f"remote-integ-key {ikey} " + ) + # Configure tunnel end point(s) on left side + dut1_scripts[cnf].write( + u"set interface ip address loop0 " + f"{ip_address(if1_ip_addr) + tnl * addr_incr}/32\n" + f"create ipsec tunnel " + f"local-ip {ip_address(if1_ip_addr) + tnl * addr_incr} " + f"local-spi {spi_1 + tnl} " + f"remote-ip {ip_address(if2_ip_addr) + cnf} " + f"remote-spi {spi_2 + tnl} " + f"crypto-alg {crypto_alg.alg_name} " + f"local-crypto-key {ckey} " + f"remote-crypto-key {ckey} " + f"instance {tnl // n_instances} " + f"salt 0x0 " + f"{integ} \n" + f"set interface unnumbered ipip{tnl // n_instances} use loop0\n" + f"set interface state ipip{tnl // n_instances} up\n" + f"ip route add {ip_address(raddr_ip2)+tnl}/32 " + f"via ipip{tnl // n_instances}\n\n" + ) + # Configure tunnel end point(s) on right side + dut2_scripts[cnf].write( + f"set ip neighbor memif1/{cnf + 1} " + f"{ip_address(if1_ip_addr) + tnl * addr_incr} " + f"02:02:00:00:{17:02X}:{cnf:02X} static\n" + f"create ipsec tunnel local-ip {ip_address(if2_ip_addr) + cnf} " + f"local-spi {spi_2 + tnl} " + f"remote-ip {ip_address(if1_ip_addr) + tnl * addr_incr} " + f"remote-spi {spi_1 + tnl} " + f"crypto-alg {crypto_alg.alg_name} " + f"local-crypto-key {ckey} " + f"remote-crypto-key {ckey} " + f"instance {tnl // n_instances} " + f"salt 0x0 " + f"{integ}\n" + f"set interface unnumbered ipip{tnl // n_instances} " + f"use memif1/{cnf + 1}\n" + f"set interface state ipip{tnl // n_instances} up\n" + f"ip route add {ip_address(raddr_ip1) + tnl}/32 " + f"via ipip{tnl // n_instances}\n\n" + ) + + IPsecUtil._close_and_copy_ipsec_script_files( + u"DUT1", nodes, n_instances, dut1_scripts) + IPsecUtil._close_and_copy_ipsec_script_files( + u"DUT2", nodes, n_instances, dut2_scripts) + @staticmethod def vpp_ipsec_add_multiple_tunnels( nodes, interface1, interface2, n_tunnels, crypto_alg, integ_alg, @@ -1176,8 +1603,8 @@ class IPsecUtil: first tunnel in direction node1->node2. :param raddr_ip2: Policy selector remote IPv4 start address for the first tunnel in direction node2->node1. - :param raddr_range: Mask specifying range of Policy selector Remote IPv4 - addresses. Valid values are from 1 to 32. + :param raddr_range: Mask specifying range of Policy selector Remote + IPv4 addresses. Valid values are from 1 to 32. :type nodes: dict :type interface1: str or int :type interface2: str or int