X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2FIPsecUtil.py;h=e7e79831bbdd12b96bd72cbaf40517e0fbececf9;hb=dd6ca76e18898f97107b30b34a84bcae81aecfb3;hp=85ffe3a503878008b18eba27a896f4cb06a760e5;hpb=c5c36999b9e0ac27fd3200568cd76a69134cfd4e;p=csit.git diff --git a/resources/libraries/python/IPsecUtil.py b/resources/libraries/python/IPsecUtil.py index 85ffe3a503..e7e79831bb 100644 --- a/resources/libraries/python/IPsecUtil.py +++ b/resources/libraries/python/IPsecUtil.py @@ -1,4 +1,4 @@ -# Copyright (c) 2016 Cisco and/or its affiliates. +# Copyright (c) 2019 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: @@ -14,52 +14,81 @@ """IPsec utilities library.""" import os -from ipaddress import ip_network, ip_address -from enum import Enum +from random import choice +from string import letters -from resources.libraries.python.VatExecutor import VatExecutor +from enum import Enum, IntEnum +from ipaddress import ip_network, ip_address + +from resources.libraries.python.IPUtil import IPUtil +from resources.libraries.python.InterfaceUtil import InterfaceUtil +from resources.libraries.python.PapiExecutor import PapiSocketExecutor from resources.libraries.python.topology import Topology -from resources.libraries.python.VatJsonUtil import VatJsonUtil +from resources.libraries.python.VatExecutor import VatExecutor + + +def gen_key(length): + """Generate random string as a key. + + :param length: Length of generated payload. + :type length: int + :returns: The generated payload. + :rtype: str + """ + return ''.join(choice(letters) for _ in range(length)) class PolicyAction(Enum): """Policy actions.""" - BYPASS = 'bypass' - DISCARD = 'discard' - PROTECT = 'protect' + BYPASS = ('bypass', 0) + DISCARD = ('discard', 1) + PROTECT = ('protect', 3) - def __init__(self, string): - self.string = string + def __init__(self, policy_name, policy_int_repr): + self.policy_name = policy_name + self.policy_int_repr = policy_int_repr class CryptoAlg(Enum): """Encryption algorithms.""" - AES_CBC_128 = ('aes-cbc-128', 'AES-CBC', 16) - AES_CBC_192 = ('aes-cbc-192', 'AES-CBC', 24) - AES_CBC_256 = ('aes-cbc-256', 'AES-CBC', 32) - AES_GCM_128 = ('aes-gcm-128', 'AES-GCM', 20) + AES_CBC_128 = ('aes-cbc-128', 1, 'AES-CBC', 16) + AES_CBC_256 = ('aes-cbc-256', 3, 'AES-CBC', 32) + AES_GCM_128 = ('aes-gcm-128', 7, 'AES-GCM', 16) + AES_GCM_256 = ('aes-gcm-256', 9, 'AES-GCM', 32) - def __init__(self, alg_name, scapy_name, key_len): + def __init__(self, alg_name, alg_int_repr, scapy_name, key_len): self.alg_name = alg_name + self.alg_int_repr = alg_int_repr self.scapy_name = scapy_name self.key_len = key_len class IntegAlg(Enum): """Integrity algorithm.""" - SHA1_96 = ('sha1-96', 'HMAC-SHA1-96', 20) - SHA_256_128 = ('sha-256-128', 'SHA2-256-128', 32) - SHA_384_192 = ('sha-384-192', 'SHA2-384-192', 48) - SHA_512_256 = ('sha-512-256', 'SHA2-512-256', 64) - AES_GCM_128 = ('aes-gcm-128', 'AES-GCM', 20) + SHA_256_128 = ('sha-256-128', 4, 'SHA2-256-128', 32) + SHA_512_256 = ('sha-512-256', 6, 'SHA2-512-256', 64) - def __init__(self, alg_name, scapy_name, key_len): + def __init__(self, alg_name, alg_int_repr, scapy_name, key_len): self.alg_name = alg_name + self.alg_int_repr = alg_int_repr self.scapy_name = scapy_name self.key_len = key_len +class IPsecProto(IntEnum): + """IPsec protocol.""" + ESP = 1 + SEC_AH = 0 + + +class IPsecSadFlags(IntEnum): + """IPsec Security Association Database flags.""" + IPSEC_API_SAD_FLAG_NONE = 0 + IPSEC_API_SAD_FLAG_IS_TUNNEL = 4 + IPSEC_API_SAD_FLAG_IS_TUNNEL_V6 = 8 + + class IPsecUtil(object): """IPsec utilities.""" @@ -99,15 +128,6 @@ class IPsecUtil(object): """ return CryptoAlg.AES_CBC_128 - @staticmethod - def crypto_alg_aes_cbc_192(): - """Return encryption algorithm aes-cbc-192. - - :returns: CryptoAlg enum AES_CBC_192 objec. - :rtype: CryptoAlg - """ - return CryptoAlg.AES_CBC_192 - @staticmethod def crypto_alg_aes_cbc_256(): """Return encryption algorithm aes-cbc-256. @@ -126,6 +146,15 @@ class IPsecUtil(object): """ return CryptoAlg.AES_GCM_128 + @staticmethod + def crypto_alg_aes_gcm_256(): + """Return encryption algorithm aes-gcm-256. + + :returns: CryptoAlg enum AES_GCM_128 object. + :rtype: CryptoAlg + """ + return CryptoAlg.AES_GCM_256 + @staticmethod def get_crypto_alg_key_len(crypto_alg): """Return encryption algorithm key length. @@ -148,15 +177,6 @@ class IPsecUtil(object): """ return crypto_alg.scapy_name - @staticmethod - def integ_alg_sha1_96(): - """Return integrity algorithm SHA1-96. - - :returns: IntegAlg enum SHA1_96 object. - :rtype: IntegAlg - """ - return IntegAlg.SHA1_96 - @staticmethod def integ_alg_sha_256_128(): """Return integrity algorithm SHA-256-128. @@ -166,15 +186,6 @@ class IPsecUtil(object): """ return IntegAlg.SHA_256_128 - @staticmethod - def integ_alg_sha_384_192(): - """Return integrity algorithm SHA-384-192. - - :returns: IntegAlg enum SHA_384_192 object. - :rtype: IntegAlg - """ - return IntegAlg.SHA_384_192 - @staticmethod def integ_alg_sha_512_256(): """Return integrity algorithm SHA-512-256. @@ -184,15 +195,6 @@ class IPsecUtil(object): """ return IntegAlg.SHA_512_256 - @staticmethod - def integ_alg_aes_gcm_128(): - """Return integrity algorithm AES-GCM-128. - - :returns: IntegAlg enum AES_GCM_128 object. - :rtype: IntegAlg - """ - return IntegAlg.AES_GCM_128 - @staticmethod def get_integ_alg_key_len(integ_alg): """Return integrity algorithm key length. @@ -216,9 +218,62 @@ class IPsecUtil(object): return integ_alg.scapy_name @staticmethod - def vpp_ipsec_add_sad_entry(node, sad_id, spi, crypto_alg, crypto_key, - integ_alg, integ_key, tunnel_src=None, - tunnel_dst=None): + def ipsec_proto_esp(): + """Return IPSec protocol ESP. + + :returns: IPsecProto enum ESP object. + :rtype: IPsecProto + """ + return int(IPsecProto.ESP) + + @staticmethod + def ipsec_proto_ah(): + """Return IPSec protocol AH. + + :returns: IPsecProto enum AH object. + :rtype: IPsecProto + """ + return int(IPsecProto.SEC_AH) + + @staticmethod + def vpp_ipsec_select_backend(node, protocol, index=1): + """Select IPsec backend. + + :param node: VPP node to select IPsec backend on. + :param protocol: IPsec protocol. + :param index: Backend index. + :type node: dict + :type protocol: IPsecProto + :type index: int + :raises RuntimeError: If failed to select IPsec backend or if no API + reply received. + """ + cmd = 'ipsec_select_backend' + err_msg = 'Failed to select IPsec backend on host {host}'.format( + host=node['host']) + args = dict( + protocol=protocol, + index=index + ) + 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 = 'Failed to dump IPsec backends on host {host}'.format( + host=node['host']) + with PapiSocketExecutor(node) as papi_exec: + papi_exec.add('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, + integ_key='', tunnel_src=None, tunnel_dst=None): """Create Security Association Database entry on the VPP node. :param node: VPP node to add SAD entry on. @@ -229,54 +284,82 @@ class IPsecUtil(object): :param integ_alg: The integrity algorithm name. :param integ_key: The integrity key string. :param tunnel_src: Tunnel header source IPv4 or IPv6 address. If not - specified ESP transport mode is used. + specified ESP transport mode is used. :param tunnel_dst: Tunnel header destination IPv4 or IPv6 address. If - not specified ESP transport mode is used. + not specified ESP transport mode is used. :type node: dict :type sad_id: int :type spi: int :type crypto_alg: CryptoAlg :type crypto_key: str - :type integ_alg: str + :type integ_alg: IntegAlg :type integ_key: str :type tunnel_src: str :type tunnel_dst: str """ - ckey = crypto_key.encode('hex') - ikey = integ_key.encode('hex') - tunnel = 'tunnel_src {0} tunnel_dst {1}'.format(tunnel_src, tunnel_dst)\ - if tunnel_src is not None and tunnel_dst is not None else '' - - out = VatExecutor.cmd_from_template(node, - "ipsec/ipsec_sad_add_entry.vat", - sad_id=sad_id, spi=spi, - calg=crypto_alg.alg_name, ckey=ckey, - ialg=integ_alg.alg_name, ikey=ikey, - tunnel=tunnel) - VatJsonUtil.verify_vat_retval( - out[0], - err_msg='Add SAD entry failed on {0}'.format(node['host'])) + ckey = dict( + length=len(crypto_key), + data=crypto_key + ) + ikey = dict( + length=len(integ_key), + data=integ_key if integ_key else 0 + ) + + flags = int(IPsecSadFlags.IPSEC_API_SAD_FLAG_NONE) + if tunnel_src and tunnel_dst: + flags = flags | int(IPsecSadFlags.IPSEC_API_SAD_FLAG_IS_TUNNEL) + src_addr = ip_address(unicode(tunnel_src)) + dst_addr = ip_address(unicode(tunnel_dst)) + if src_addr.version == 6: + flags = \ + flags | int(IPsecSadFlags.IPSEC_API_SAD_FLAG_IS_TUNNEL_V6) + else: + src_addr = '' + dst_addr = '' + + cmd = 'ipsec_sad_entry_add_del' + err_msg = 'Failed to add Security Association Database entry on ' \ + 'host {host}'.format(host=node['host']) + sad_entry = dict( + sad_id=int(sad_id), + spi=int(spi), + crypto_algorithm=crypto_alg.alg_int_repr, + crypto_key=ckey, + integrity_algorithm=integ_alg.alg_int_repr if integ_alg else 0, + integrity_key=ikey, + flags=flags, + tunnel_src=str(src_addr), + tunnel_dst=str(dst_addr), + protocol=int(IPsecProto.ESP) + ) + args = dict( + is_add=1, + entry=sad_entry + ) + with PapiSocketExecutor(node) as papi_exec: + papi_exec.add(cmd, **args).get_reply(err_msg) @staticmethod - def vpp_ipsec_add_sad_entries(node, n_entries, sad_id, spi, crypto_alg, - crypto_key, integ_alg, integ_key, - tunnel_src=None, tunnel_dst=None): + def vpp_ipsec_add_sad_entries( + node, n_entries, sad_id, spi, crypto_alg, crypto_key, + integ_alg=None, integ_key='', tunnel_src=None, tunnel_dst=None): """Create multiple Security Association Database entries on VPP node. :param node: VPP node to add SAD entry on. :param n_entries: Number of SAD entries to be created. :param sad_id: First SAD entry ID. All subsequent SAD entries will have - id incremented by 1. + id incremented by 1. :param spi: Security Parameter Index of first SAD entry. All subsequent - SAD entries will have spi incremented by 1. + SAD entries will have spi incremented by 1. :param crypto_alg: The encryption algorithm name. :param crypto_key: The encryption key string. :param integ_alg: The integrity algorithm name. :param integ_key: The integrity key string. :param tunnel_src: Tunnel header source IPv4 or IPv6 address. If not - specified ESP transport mode is used. + specified ESP transport mode is used. :param tunnel_dst: Tunnel header destination IPv4 or IPv6 address. If - not specified ESP transport mode is used. + not specified ESP transport mode is used. :type node: dict :type n_entries: int :type sad_id: int @@ -288,50 +371,186 @@ class IPsecUtil(object): :type tunnel_src: str :type tunnel_dst: str """ - tmp_filename = '/tmp/ipsec_sad_{0}_add_del_entry.script'.format(sad_id) - ckey = crypto_key.encode('hex') - ikey = integ_key.encode('hex') - tunnel = 'tunnel_src {0} tunnel_dst {1}'.format(tunnel_src, tunnel_dst)\ - if tunnel_src is not None and tunnel_dst is not None else '' - - integ = 'integ_alg {0} integ_key {1}'.format(integ_alg.alg_name, ikey)\ - if crypto_alg.alg_name != 'aes-gcm-128' else '' - - with open(tmp_filename, 'w') as tmp_file: - for i in range(0, n_entries): - buf_str = 'ipsec_sad_add_del_entry esp sad_id {0} spi {1} ' \ - 'crypto_alg {2} crypto_key {3} {4} {5}\n'.format( - sad_id+i, spi+i, crypto_alg.alg_name, ckey, integ, - tunnel) - tmp_file.write(buf_str) - vat = VatExecutor() - vat.execute_script(tmp_filename, node, timeout=300, json_out=False, - copy_on_execute=True) - os.remove(tmp_filename) + if tunnel_src and tunnel_dst: + src_addr = ip_address(unicode(tunnel_src)) + dst_addr = ip_address(unicode(tunnel_dst)) + else: + src_addr = '' + dst_addr = '' + + addr_incr = 1 << (128 - 96) if src_addr.version == 6 \ + else 1 << (32 - 24) + + if int(n_entries) > 10: + tmp_filename = '/tmp/ipsec_sad_{0}_add_del_entry.script'.\ + format(sad_id) + + with open(tmp_filename, 'w') as tmp_file: + for i in xrange(n_entries): + integ = ( + 'integ-alg {integ_alg} integ-key {integ_key}'.format( + integ_alg=integ_alg.alg_name, + integ_key=integ_key.encode('hex')) + if integ_alg else '') + tunnel = ( + 'tunnel-src {laddr} tunnel-dst {raddr}'.format( + laddr=src_addr + i * addr_incr, + raddr=dst_addr + i * addr_incr) + if tunnel_src and tunnel_dst else '') + conf = ( + 'exec ipsec sa add {sad_id} esp spi {spi} ' + 'crypto-alg {crypto_alg} crypto-key {crypto_key} ' + '{integ} {tunnel}\n'.format( + sad_id=sad_id + i, + spi=spi + i, + crypto_alg=crypto_alg.alg_name, + crypto_key=crypto_key.encode('hex'), + integ=integ, + tunnel=tunnel)) + tmp_file.write(conf) + vat = VatExecutor() + vat.execute_script(tmp_filename, node, timeout=300, json_out=False, + copy_on_execute=True) + os.remove(tmp_filename) + return + + ckey = dict( + length=len(crypto_key), + data=crypto_key + ) + ikey = dict( + length=len(integ_key), + data=integ_key if integ_key else 0 + ) + + flags = int(IPsecSadFlags.IPSEC_API_SAD_FLAG_NONE) + if tunnel_src and tunnel_dst: + flags = flags | int(IPsecSadFlags.IPSEC_API_SAD_FLAG_IS_TUNNEL) + if src_addr.version == 6: + flags = flags | int( + IPsecSadFlags.IPSEC_API_SAD_FLAG_IS_TUNNEL_V6) + + cmd = 'ipsec_sad_entry_add_del' + err_msg = 'Failed to add Security Association Database entry on ' \ + 'host {host}'.format(host=node['host']) + + sad_entry = dict( + sad_id=int(sad_id), + spi=int(spi), + crypto_algorithm=crypto_alg.alg_int_repr, + crypto_key=ckey, + integrity_algorithm=integ_alg.alg_int_repr if integ_alg else 0, + integrity_key=ikey, + flags=flags, + tunnel_src=str(src_addr), + tunnel_dst=str(dst_addr), + protocol=int(IPsecProto.ESP) + ) + args = dict( + is_add=1, + entry=sad_entry + ) + with PapiSocketExecutor(node) as papi_exec: + for i in xrange(n_entries): + args['entry']['sad_id'] = int(sad_id) + i + args['entry']['spi'] = int(spi) + i + args['entry']['tunnel_src'] = str(src_addr + i * addr_incr) \ + if tunnel_src and tunnel_dst else src_addr + args['entry']['tunnel_dst'] = str(dst_addr + i * addr_incr) \ + if tunnel_src and tunnel_dst else dst_addr + history = False if 1 < i < n_entries - 1 else True + papi_exec.add(cmd, history=history, **args) + papi_exec.get_replies(err_msg) @staticmethod - def vpp_ipsec_sa_set_key(node, sa_id, crypto_key, integ_key): - """Update Security Association (SA) keys. + def vpp_ipsec_set_ip_route( + node, n_tunnels, tunnel_src, traffic_addr, tunnel_dst, interface, + raddr_range): + """Set IP address and route on interface. - :param node: VPP node to update SA keys. - :param sa_id: SAD entry ID. - :param crypto_key: The encryption key string. - :param integ_key: The integrity key string. + :param node: VPP node to add config on. + :param n_tunnels: Number of tunnels to create. + :param tunnel_src: Tunnel header source IPv4 or IPv6 address. + :param traffic_addr: Traffic destination IP address to route. + :param tunnel_dst: Tunnel header destination IPv4 or IPv6 address. + :param interface: Interface key on node 1. + :param raddr_range: Mask specifying range of Policy selector Remote IP + addresses. Valid values are from 1 to 32 in case of IPv4 and to 128 + in case of IPv6. :type node: dict - :type sa_id: int - :type crypto_key: str - :type integ_key: str + :type n_tunnels: int + :type tunnel_src: str + :type traffic_addr: str + :type tunnel_dst: str + :type interface: str + :type raddr_range: int """ - ckey = crypto_key.encode('hex') - ikey = integ_key.encode('hex') - - out = VatExecutor.cmd_from_template(node, - "ipsec/ipsec_sa_set_key.vat", - sa_id=sa_id, - ckey=ckey, ikey=ikey) - VatJsonUtil.verify_vat_retval( - out[0], - err_msg='Update SA key failed on {0}'.format(node['host'])) + laddr = ip_address(unicode(tunnel_src)) + raddr = ip_address(unicode(tunnel_dst)) + taddr = ip_address(unicode(traffic_addr)) + addr_incr = 1 << (128 - raddr_range) if laddr.version == 6 \ + else 1 << (32 - raddr_range) + + if int(n_tunnels) > 10: + tmp_filename = '/tmp/ipsec_set_ip.script' + + with open(tmp_filename, 'w') as tmp_file: + for i in xrange(n_tunnels): + conf = ( + 'exec set interface ip address {interface} ' + '{laddr}/{laddr_l}\n' + 'exec ip route add {taddr}/{taddr_l} via {raddr} ' + '{interface}\n'.format( + interface=Topology.get_interface_name( + node, interface), + laddr=laddr + i * addr_incr, + laddr_l=raddr_range, + raddr=raddr + i * addr_incr, + taddr=taddr + i, + taddr_l=128 if taddr.version == 6 else 32)) + tmp_file.write(conf) + vat = VatExecutor() + vat.execute_script(tmp_filename, node, timeout=300, json_out=False, + copy_on_execute=True) + os.remove(tmp_filename) + return + + cmd1 = 'sw_interface_add_del_address' + args1 = dict( + sw_if_index=InterfaceUtil.get_interface_index(node, interface), + is_add=1, + is_ipv6=1 if laddr.version == 6 else 0, + del_all=0, + address_length=raddr_range, + address=None + ) + cmd2 = 'ip_route_add_del' + route = IPUtil.compose_vpp_route_structure( + node, taddr, + prefix_len=128 if taddr.version == 6 else 32, + interface=interface, + gateway=tunnel_dst + ) + args2 = dict( + is_add=1, + is_multipath=0, + route=route + ) + err_msg = 'Failed to configure IP addresses and IP routes on ' \ + 'interface {ifc} on host {host}'.\ + format(ifc=interface, host=node['host']) + + with PapiSocketExecutor(node) as papi_exec: + for i in xrange(n_tunnels): + args1['address'] = getattr(laddr + i * addr_incr, 'packed') + args2['route']['prefix']['address']['un'] = \ + IPUtil.union_addr(taddr + i) + args2['route']['paths'][0]['nh']['address'] = \ + IPUtil.union_addr(raddr + i * addr_incr) + history = False if 1 < i < n_tunnels - 1 else True + papi_exec.add(cmd1, history=history, **args1).\ + add(cmd2, history=history, **args2) + papi_exec.get_replies(err_msg) @staticmethod def vpp_ipsec_add_spd(node, spd_id): @@ -342,11 +561,15 @@ class IPsecUtil(object): :type node: dict :type spd_id: int """ - out = VatExecutor.cmd_from_template(node, "ipsec/ipsec_spd_add.vat", - spd_id=spd_id) - VatJsonUtil.verify_vat_retval( - out[0], - err_msg='Add SPD {0} failed on {1}'.format(spd_id, node['host'])) + cmd = 'ipsec_spd_add_del' + err_msg = 'Failed to add Security Policy Database on host {host}'.\ + format(host=node['host']) + args = dict( + is_add=1, + spd_id=int(spd_id) + ) + with PapiSocketExecutor(node) as papi_exec: + papi_exec.add(cmd, **args).get_reply(err_msg) @staticmethod def vpp_ipsec_spd_add_if(node, spd_id, interface): @@ -359,21 +582,23 @@ class IPsecUtil(object): :type spd_id: int :type interface: str or int """ - sw_if_index = Topology.get_interface_sw_index(node, interface)\ - if isinstance(interface, basestring) else interface - - out = VatExecutor.cmd_from_template(node, - "ipsec/ipsec_interface_add_spd.vat", - spd_id=spd_id, sw_if_id=sw_if_index) - VatJsonUtil.verify_vat_retval( - out[0], - err_msg='Add interface {0} to SPD {1} failed on {2}'.format( - interface, spd_id, node['host'])) + cmd = 'ipsec_interface_add_del_spd' + err_msg = 'Failed to add interface {ifc} to Security Policy Database ' \ + '{spd} on host {host}'.\ + format(ifc=interface, spd=spd_id, host=node['host']) + args = dict( + is_add=1, + sw_if_index=InterfaceUtil.get_interface_index(node, interface), + spd_id=int(spd_id) + ) + with PapiSocketExecutor(node) as papi_exec: + papi_exec.add(cmd, **args).get_reply(err_msg) @staticmethod - def vpp_ipsec_spd_add_entry(node, spd_id, priority, action, inbound=True, - sa_id=None, laddr_range=None, raddr_range=None, - proto=None, lport_range=None, rport_range=None): + def vpp_ipsec_policy_add( + node, spd_id, priority, action, inbound=True, sa_id=None, + laddr_range=None, raddr_range=None, proto=None, lport_range=None, + rport_range=None, is_ipv6=False): """Create Security Policy Database entry on the VPP node. :param node: VPP node to add SPD entry on. @@ -381,19 +606,21 @@ class IPsecUtil(object): :param priority: SPD entry priority, higher number = higher priority. :param action: Policy action. :param inbound: If True policy is for inbound traffic, otherwise - outbound. + outbound. :param sa_id: SAD entry ID for protect action. :param laddr_range: Policy selector local IPv4 or IPv6 address range in - format IP/prefix or IP/mask. If no mask is provided, it's considered - to be /32. + format IP/prefix or IP/mask. If no mask is provided, + it's considered to be /32. :param raddr_range: Policy selector remote IPv4 or IPv6 address range in - format IP/prefix or IP/mask. If no mask is provided, it's considered - to be /32. + format IP/prefix or IP/mask. If no mask is provided, + it's considered to be /32. :param proto: Policy selector next layer protocol number. :param lport_range: Policy selector local TCP/UDP port range in format - -. + -. :param rport_range: Policy selector remote TCP/UDP port range in format - -. + -. + :param is_ipv6: True in case of IPv6 policy when IPv6 address range is + not defined so it will default to address ::/0, otherwise False. :type node: dict :type spd_id: int :type priority: int @@ -405,44 +632,56 @@ class IPsecUtil(object): :type proto: int :type lport_range: string :type rport_range: string + :type is_ipv6: bool """ - direction = 'inbound' if inbound else 'outbound' - - act_str = action.value - if PolicyAction.PROTECT == action and sa_id is not None: - act_str += 'sa_id {0}'.format(sa_id) - - selector = '' - if laddr_range is not None: - net = ip_network(unicode(laddr_range), strict=False) - selector += 'laddr_start {0} laddr_stop {1} '.format( - net.network_address, net.broadcast_address) - if raddr_range is not None: - net = ip_network(unicode(raddr_range), strict=False) - selector += 'raddr_start {0} raddr_stop {1} '.format( - net.network_address, net.broadcast_address) - if proto is not None: - selector += 'protocol {0} '.format(proto) - if lport_range is not None: - selector += 'lport_start {p[0]} lport_stop {p[1]} '.format( - p=lport_range.split('-')) - if rport_range is not None: - selector += 'rport_start {p[0]} rport_stop {p[1]} '.format( - p=rport_range.split('-')) - - out = VatExecutor.cmd_from_template(node, - "ipsec/ipsec_spd_add_entry.vat", - spd_id=spd_id, priority=priority, - action=act_str, direction=direction, - selector=selector) - VatJsonUtil.verify_vat_retval( - out[0], - err_msg='Add entry to SPD {0} failed on {1}'.format(spd_id, - node['host'])) + + if laddr_range is None: + laddr_range = '::/0' if is_ipv6 else '0.0.0.0/0' + + if raddr_range is None: + raddr_range = '::/0' if is_ipv6 else '0.0.0.0/0' + + cmd = 'ipsec_spd_entry_add_del' + err_msg = 'Failed to add entry to Security Policy Database ' \ + '{spd} on host {host}'.format(spd=spd_id, host=node['host']) + + spd_entry = dict( + spd_id=int(spd_id), + priority=int(priority), + is_outbound=0 if inbound else 1, + 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( + ip_network(unicode(raddr_range), strict=False).network_address), + remote_address_stop=IPUtil.create_ip_address_object( + ip_network( + unicode(raddr_range), strict=False).broadcast_address), + local_address_start=IPUtil.create_ip_address_object( + ip_network( + unicode(laddr_range), strict=False).network_address), + local_address_stop=IPUtil.create_ip_address_object( + ip_network( + unicode(laddr_range), strict=False).broadcast_address), + remote_port_start=int(rport_range.split('-')[0]) if rport_range + else 0, + remote_port_stop=int(rport_range.split('-')[1]) if rport_range + else 65535, + local_port_start=int(lport_range.split('-')[0]) if lport_range + else 0, + local_port_stop=int(lport_range.split('-')[1]) if rport_range + else 65535 + ) + args = dict( + is_add=1, + 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): + def vpp_ipsec_spd_add_entries( + node, n_entries, spd_id, priority, inbound, sa_id, raddr_ip): """Create multiple Security Policy Database entries on the VPP node. :param node: VPP node to add SPD entries on. @@ -450,15 +689,13 @@ class IPsecUtil(object): :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. + outbound. :param sa_id: SAD entry ID for first entry. Each subsequent entry will - SAD entry ID incremented by 1. + 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: Mask specifying range of Policy selector Remote IPv4 - addresses. Valid values are from 1 to 32. + 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. :type node: dict :type n_entries: int :type spd_id: int @@ -466,194 +703,507 @@ class IPsecUtil(object): :type inbound: bool :type sa_id: int :type raddr_ip: string - :type raddr_range: int """ - tmp_filename = '/tmp/ipsec_spd_{0}_add_del_entry.script'.format(sa_id) - - direction = 'inbound' if inbound else 'outbound' - addr_incr = 1 << (32 - raddr_range) - addr_ip = int(ip_address(unicode(raddr_ip))) - start_str = 'ipsec_spd_add_del_entry spd_id {0} priority {1} {2} ' \ - 'action protect sa_id'.format(spd_id, priority, direction) - with open(tmp_filename, 'w') as tmp_file: - for i in range(0, n_entries): - r_ip_s = ip_address(addr_ip + addr_incr * i) - r_ip_e = ip_address(addr_ip + addr_incr * (i+1) - 1) - buf_str = '{0} {1} raddr_start {2} raddr_stop {3}\n'.format( - start_str, sa_id+i, r_ip_s, r_ip_e) - tmp_file.write(buf_str) - vat = VatExecutor() - vat.execute_script(tmp_filename, node, timeout=300, json_out=False, - copy_on_execute=True) - os.remove(tmp_filename) + if int(n_entries) > 10: + tmp_filename = '/tmp/ipsec_spd_{0}_add_del_entry.script'.\ + format(sa_id) + + with open(tmp_filename, 'w') as tmp_file: + for i in xrange(n_entries): + raddr_s = ip_address(unicode(raddr_ip)) + i + raddr_e = ip_address(unicode(raddr_ip)) + (i + 1) - 1 + tunnel = ( + 'exec ipsec policy add spd {spd_id} ' + 'priority {priority} {direction} action protect ' + 'sa {sa_id} remote-ip-range {raddr_s} - {raddr_e} ' + 'local-ip-range 0.0.0.0 - 255.255.255.255\n'. + format( + spd_id=spd_id, + priority=priority, + direction='inbound' if inbound else 'outbound', + sa_id=sa_id+i, + raddr_s=raddr_s, + raddr_e=raddr_e)) + tmp_file.write(tunnel) + VatExecutor().execute_script( + tmp_filename, node, timeout=300, json_out=False, + copy_on_execute=True) + os.remove(tmp_filename) + return + + raddr_ip = ip_address(unicode(raddr_ip)) + laddr_range = '::/0' if raddr_ip.version == 6 else '0.0.0.0/0' + + cmd = 'ipsec_spd_entry_add_del' + err_msg = 'Failed to add entry to Security Policy Database ' \ + '{spd} on host {host}'.format(spd=spd_id, host=node['host']) + + spd_entry = dict( + spd_id=int(spd_id), + priority=int(priority), + is_outbound=0 if inbound else 1, + sa_id=int(sa_id) if sa_id else 0, + policy=IPsecUtil.policy_action_protect().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( + ip_network(unicode(laddr_range), strict=False).network_address), + local_address_stop=IPUtil.create_ip_address_object( + ip_network( + unicode(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=1, + entry=spd_entry + ) + + with PapiSocketExecutor(node) as papi_exec: + for i in xrange(n_entries): + args['entry']['remote_address_start']['un'] = \ + IPUtil.union_addr(raddr_ip + i) + args['entry']['remote_address_stop']['un'] = \ + IPUtil.union_addr(raddr_ip + i) + history = False if 1 < i < n_entries - 1 else True + papi_exec.add(cmd, history=history, **args) + papi_exec.get_replies(err_msg) @staticmethod - def vpp_ipsec_create_tunnel_interfaces(node1, node2, if1_ip_addr, - if2_ip_addr, if1_key, if2_key, - n_tunnels, crypto_alg, crypto_key, - integ_alg, integ_key, raddr_ip1, - raddr_ip2, raddr_range): + 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. - :param node1: VPP node 1 to create tunnel interfaces. - :param node2: VPP node 2 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 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 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 tunnell interfaces to create. :param crypto_alg: The encryption algorithm name. - :param crypto_key: The encryption key string. :param integ_alg: The integrity algorithm name. - :param integ_key: The integrity key string. - :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. - :type node1: dict - :type node2: dict + :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. + :type nodes: dict :type if1_ip_addr: str :type if2_ip_addr: str :type if1_key: str :type if2_key: str :type n_tunnels: int :type crypto_alg: CryptoAlg - :type crypto_key: str :type integ_alg: IntegAlg - :type integ_key: str :type raddr_ip1: string :type raddr_ip2: string :type raddr_range: int """ - spi_1 = 10000 - spi_2 = 20000 - - raddr_ip1_i = int(ip_address(unicode(raddr_ip1))) - raddr_ip2_i = int(ip_address(unicode(raddr_ip2))) - addr_incr = 1 << (32 - raddr_range) - - tmp_fn1 = '/tmp/ipsec_create_tunnel_dut1.config' - tmp_fn2 = '/tmp/ipsec_create_tunnel_dut2.config' - - ckey = crypto_key.encode('hex') - ikey = integ_key.encode('hex') - - vat = VatExecutor() - with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2: - for i in range(0, n_tunnels): - integ = '' - if crypto_alg.alg_name != 'aes-gcm-128': - integ = 'integ_alg {integ_alg} '\ - 'local_integ_key {local_integ_key} '\ - 'remote_integ_key {remote_integ_key} '\ - .format(integ_alg=integ_alg.alg_name, - local_integ_key=ikey, - remote_integ_key=ikey) - dut1_tunnel = 'ipsec_tunnel_if_add_del '\ - 'local_spi {local_spi} '\ - 'remote_spi {remote_spi} '\ - 'crypto_alg {crypto_alg} '\ - 'local_crypto_key {local_crypto_key} '\ - 'remote_crypto_key {remote_crypto_key} '\ - '{integ} '\ - 'local_ip {local_ip} '\ - 'remote_ip {remote_ip}\n'\ - .format(local_spi=spi_1+i, - remote_spi=spi_2+i, - crypto_alg=crypto_alg.alg_name, - local_crypto_key=ckey, - remote_crypto_key=ckey, - integ=integ, - local_ip=if1_ip_addr, - remote_ip=if2_ip_addr) - dut2_tunnel = 'ipsec_tunnel_if_add_del '\ - 'local_spi {local_spi} '\ - 'remote_spi {remote_spi} '\ - 'crypto_alg {crypto_alg} '\ - 'local_crypto_key {local_crypto_key} '\ - 'remote_crypto_key {remote_crypto_key} '\ - '{integ} '\ - 'local_ip {local_ip} '\ - 'remote_ip {remote_ip}\n'\ - .format(local_spi=spi_2+i, - remote_spi=spi_1+i, - crypto_alg=crypto_alg.alg_name, - local_crypto_key=ckey, - remote_crypto_key=ckey, - integ=integ, - local_ip=if2_ip_addr, - remote_ip=if1_ip_addr) - tmp_f1.write(dut1_tunnel) - tmp_f2.write(dut2_tunnel) - vat.execute_script(tmp_fn1, node1, timeout=300, json_out=False, - copy_on_execute=True) - vat.execute_script(tmp_fn2, node2, timeout=300, json_out=False, - copy_on_execute=True) - os.remove(tmp_fn1) - os.remove(tmp_fn2) - - with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2: - for i in range(0, n_tunnels): - raddr_ip1 = ip_address(raddr_ip1_i + addr_incr*i) - raddr_ip2 = ip_address(raddr_ip2_i + addr_incr*i) - dut1_if = Topology.get_interface_name(node1, if1_key) - dut1 = 'ip_add_del_route {raddr}/{mask} via {addr} ipsec{i}\n'\ - 'exec set interface unnumbered ipsec{i} use {uifc}\n'\ - 'sw_interface_set_flags ipsec{i} admin-up\n'\ - .format(raddr=raddr_ip2, mask=raddr_range, - addr=if2_ip_addr, i=i, uifc=dut1_if) - dut2_if = Topology.get_interface_name(node2, if2_key) - dut2 = 'ip_add_del_route {raddr}/{mask} via {addr} ipsec{i}\n'\ - 'exec set interface unnumbered ipsec{i} use {uifc}\n'\ - 'sw_interface_set_flags ipsec{i} admin-up\n'\ - .format(raddr=raddr_ip1, mask=raddr_range, - addr=if1_ip_addr, i=i, uifc=dut2_if) - tmp_f1.write(dut1) - tmp_f2.write(dut2) - - vat.execute_script(tmp_fn1, node1, timeout=300, json_out=False, - copy_on_execute=True) - vat.execute_script(tmp_fn2, node2, timeout=300, json_out=False, - copy_on_execute=True) - os.remove(tmp_fn1) - os.remove(tmp_fn2) + n_tunnels = int(n_tunnels) + spi_1 = 100000 + spi_2 = 200000 + if1_ip = ip_address(unicode(if1_ip_addr)) + if2_ip = ip_address(unicode(if2_ip_addr)) + raddr_ip1 = ip_address(unicode(raddr_ip1)) + raddr_ip2 = ip_address(unicode(raddr_ip2)) + addr_incr = 1 << (128 - raddr_range) if if1_ip.version == 6 \ + else 1 << (32 - raddr_range) + + if n_tunnels > 1: + tmp_fn1 = '/tmp/ipsec_create_tunnel_dut1.config' + tmp_fn2 = '/tmp/ipsec_create_tunnel_dut2.config' + vat = VatExecutor() + with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2: + tmp_f1.write( + 'exec create loopback interface\n' + 'exec set interface state loop0 up\n' + 'exec set interface ip address {uifc} {iaddr}/{mask}\n' + .format( + iaddr=if2_ip - 1, + uifc=Topology.get_interface_name( + nodes['DUT1'], if1_key), + mask=96 if if2_ip.version == 6 else 24)) + tmp_f2.write( + 'exec set interface ip address {uifc} {iaddr}/{mask}\n' + .format( + iaddr=if2_ip, + uifc=Topology.get_interface_name( + nodes['DUT2'], if2_key), + mask=96 if if2_ip.version == 6 else 24)) + for i in xrange(n_tunnels): + ckey = gen_key(IPsecUtil.get_crypto_alg_key_len( + crypto_alg)).encode('hex') + if integ_alg: + ikey = gen_key(IPsecUtil.get_integ_alg_key_len( + integ_alg)).encode('hex') + integ = ( + 'integ_alg {integ_alg} ' + 'local_integ_key {local_integ_key} ' + 'remote_integ_key {remote_integ_key} ' + .format( + integ_alg=integ_alg.alg_name, + local_integ_key=ikey, + remote_integ_key=ikey)) + else: + integ = '' + tmp_f1.write( + 'exec set interface ip address loop0 {laddr}/32\n' + 'ipsec_tunnel_if_add_del ' + 'local_spi {local_spi} ' + 'remote_spi {remote_spi} ' + 'crypto_alg {crypto_alg} ' + 'local_crypto_key {local_crypto_key} ' + 'remote_crypto_key {remote_crypto_key} ' + '{integ} ' + 'local_ip {laddr} ' + 'remote_ip {raddr}\n' + .format( + local_spi=spi_1 + i, + remote_spi=spi_2 + i, + crypto_alg=crypto_alg.alg_name, + local_crypto_key=ckey, + remote_crypto_key=ckey, + integ=integ, + laddr=if1_ip + i * addr_incr, + raddr=if2_ip)) + tmp_f2.write( + 'ipsec_tunnel_if_add_del ' + 'local_spi {local_spi} ' + 'remote_spi {remote_spi} ' + 'crypto_alg {crypto_alg} ' + 'local_crypto_key {local_crypto_key} ' + 'remote_crypto_key {remote_crypto_key} ' + '{integ} ' + 'local_ip {laddr} ' + 'remote_ip {raddr}\n' + .format( + local_spi=spi_2 + i, + remote_spi=spi_1 + i, + crypto_alg=crypto_alg.alg_name, + local_crypto_key=ckey, + remote_crypto_key=ckey, + integ=integ, + laddr=if2_ip, + raddr=if1_ip + i * addr_incr)) + vat.execute_script( + tmp_fn1, nodes['DUT1'], timeout=1800, json_out=False, + copy_on_execute=True, + history=False if n_tunnels > 100 else True) + vat.execute_script( + tmp_fn2, nodes['DUT2'], timeout=1800, json_out=False, + copy_on_execute=True, + history=False if n_tunnels > 100 else True) + os.remove(tmp_fn1) + os.remove(tmp_fn2) + + with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2: + tmp_f2.write( + 'exec ip route add {raddr} via {uifc} {iaddr}\n' + .format( + raddr=ip_network(unicode(if1_ip_addr+'/8'), False), + iaddr=if2_ip - 1, + uifc=Topology.get_interface_name( + nodes['DUT2'], if2_key))) + for i in xrange(n_tunnels): + tmp_f1.write( + 'exec set interface unnumbered ipsec{i} use {uifc}\n' + 'exec set interface state ipsec{i} up\n' + 'exec ip route add {taddr}/{mask} via ipsec{i}\n' + .format( + taddr=raddr_ip2 + i, + i=i, + uifc=Topology.get_interface_name(nodes['DUT1'], + if1_key), + mask=128 if if2_ip.version == 6 else 32)) + tmp_f2.write( + 'exec set interface unnumbered ipsec{i} use {uifc}\n' + 'exec set interface state ipsec{i} up\n' + 'exec ip route add {taddr}/{mask} via ipsec{i}\n' + .format( + taddr=raddr_ip1 + i, + i=i, + uifc=Topology.get_interface_name(nodes['DUT2'], + if2_key), + mask=128 if if2_ip.version == 6 else 32)) + vat.execute_script( + tmp_fn1, nodes['DUT1'], timeout=1800, json_out=False, + copy_on_execute=True, + history=False if n_tunnels > 100 else True) + vat.execute_script( + tmp_fn2, nodes['DUT2'], timeout=1800, json_out=False, + copy_on_execute=True, + history=False if n_tunnels > 100 else True) + os.remove(tmp_fn1) + os.remove(tmp_fn2) + return + + with PapiSocketExecutor(nodes['DUT1']) as papi_exec: + # Create loopback interface on DUT1, set it to up state + cmd1 = 'create_loopback' + args1 = dict(mac_address=0) + err_msg = 'Failed to create loopback interface on host {host}'.\ + format(host=nodes['DUT1']['host']) + loop_sw_if_idx = papi_exec.add(cmd1, **args1).\ + get_sw_if_index(err_msg) + cmd1 = 'sw_interface_set_flags' + args1 = dict( + sw_if_index=loop_sw_if_idx, + admin_up_down=1) + err_msg = 'Failed to set loopback interface state up on host ' \ + '{host}'.format(host=nodes['DUT1']['host']) + papi_exec.add(cmd1, **args1).get_reply(err_msg) + # Set IP address on VPP node 1 interface + cmd1 = 'sw_interface_add_del_address' + args1 = dict( + sw_if_index=InterfaceUtil.get_interface_index( + nodes['DUT1'], if1_key), + is_add=1, + is_ipv6=1 if if2_ip.version == 6 else 0, + del_all=0, + address_length=96 if if2_ip.version == 6 else 24, + address=getattr(if2_ip - 1, 'packed')) + err_msg = 'Failed to set IP address on interface {ifc} on host ' \ + '{host}'.format(ifc=if1_key, host=nodes['DUT1']['host']) + papi_exec.add(cmd1, **args1).get_reply(err_msg) + # Configure IPsec tunnel interfaces + args1 = dict( + sw_if_index=loop_sw_if_idx, + is_add=1, + is_ipv6=1 if if1_ip.version == 6 else 0, + del_all=0, + address_length=128 if if1_ip.version == 6 else 32, + address='') + cmd2 = 'ipsec_tunnel_if_add_del' + args2 = dict( + is_add=1, + 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 + ) + err_msg = 'Failed to add IPsec tunnel interfaces on host {host}'.\ + format(host=nodes['DUT1']['host']) + ipsec_tunnels = list() + ckeys = list() + ikeys = list() + for i in xrange(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))) + args1['address'] = getattr(if1_ip + i * addr_incr, 'packed') + args2['local_spi'] = spi_1 + i + args2['remote_spi'] = spi_2 + i + args2['local_ip'] = IPUtil.create_ip_address_object( + if1_ip + i * addr_incr) + args2['remote_ip'] = IPUtil.create_ip_address_object(if2_ip) + args2['local_crypto_key_len'] = len(ckeys[i]) + args2['local_crypto_key'] = ckeys[i] + args2['remote_crypto_key_len'] = len(ckeys[i]) + args2['remote_crypto_key'] = ckeys[i] + if integ_alg: + args2['local_integ_key_len'] = len(ikeys[i]) + args2['local_integ_key'] = ikeys[i] + args2['remote_integ_key_len'] = len(ikeys[i]) + args2['remote_integ_key'] = ikeys[i] + history = False if 1 < i < n_tunnels - 1 else True + papi_exec.add(cmd1, history=history, **args1).\ + add(cmd2, history=history, **args2) + replies = papi_exec.get_replies(err_msg) + for reply in replies: + if 'sw_if_index' in reply: + ipsec_tunnels.append(reply["sw_if_index"]) + # Configure IP routes + cmd1 = 'sw_interface_set_unnumbered' + args1 = dict( + is_add=1, + sw_if_index=InterfaceUtil.get_interface_index( + nodes['DUT1'], if1_key), + unnumbered_sw_if_index=0 + ) + cmd2 = 'sw_interface_set_flags' + args2 = dict( + sw_if_index=0, + admin_up_down=1) + cmd3 = 'ip_route_add_del' + route = IPUtil.compose_vpp_route_structure( + nodes['DUT1'], raddr_ip2.compressed, + prefix_len=128 if raddr_ip2.version == 6 else 32, + interface=0 + ) + args3 = dict( + is_add=1, + is_multipath=0, + route=route + ) + err_msg = 'Failed to add IP routes on host {host}'.format( + host=nodes['DUT1']['host']) + for i in xrange(n_tunnels): + args1['unnumbered_sw_if_index'] = ipsec_tunnels[i] + args2['sw_if_index'] = ipsec_tunnels[i] + args3['route']['prefix']['address']['un'] = \ + IPUtil.union_addr(raddr_ip2 + i) + args3['route']['paths'][0]['sw_if_index'] = \ + ipsec_tunnels[i] + history = False if 1 < i < n_tunnels - 1 else True + papi_exec.add(cmd1, history=history, **args1).\ + add(cmd2, history=history, **args2).\ + add(cmd3, history=history, **args3) + papi_exec.get_replies(err_msg) + + with PapiSocketExecutor(nodes['DUT2']) as papi_exec: + # Set IP address on VPP node 2 interface + cmd1 = 'sw_interface_add_del_address' + args1 = dict( + sw_if_index=InterfaceUtil.get_interface_index( + nodes['DUT2'], if2_key), + is_add=1, + is_ipv6=1 if if2_ip.version == 6 else 0, + del_all=0, + address_length=96 if if2_ip.version == 6 else 24, + address=if2_ip.packed) + err_msg = 'Failed to set IP address on interface {ifc} on host ' \ + '{host}'.format(ifc=if2_key, host=nodes['DUT2']['host']) + papi_exec.add(cmd1, **args1).get_reply(err_msg) + # Configure IPsec tunnel interfaces + cmd2 = 'ipsec_tunnel_if_add_del' + args2 = dict( + is_add=1, + local_ip=IPUtil.create_ip_address_object(if2_ip), + 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 + ) + err_msg = 'Failed to add IPsec tunnel interfaces on host {host}'. \ + format(host=nodes['DUT2']['host']) + ipsec_tunnels = list() + for i in xrange(n_tunnels): + args2['local_spi'] = spi_2 + i + args2['remote_spi'] = spi_1 + i + args2['local_ip'] = IPUtil.create_ip_address_object(if2_ip) + args2['remote_ip'] = IPUtil.create_ip_address_object( + if1_ip + i * addr_incr) + args2['local_crypto_key_len'] = len(ckeys[i]) + args2['local_crypto_key'] = ckeys[i] + args2['remote_crypto_key_len'] = len(ckeys[i]) + args2['remote_crypto_key'] = ckeys[i] + if integ_alg: + args2['local_integ_key_len'] = len(ikeys[i]) + args2['local_integ_key'] = ikeys[i] + args2['remote_integ_key_len'] = len(ikeys[i]) + args2['remote_integ_key'] = ikeys[i] + history = False if 1 < i < n_tunnels - 1 else True + papi_exec.add(cmd2, history=history, **args2) + replies = papi_exec.get_replies(err_msg) + for reply in replies: + if 'sw_if_index' in reply: + ipsec_tunnels.append(reply["sw_if_index"]) + # Configure IP routes + cmd1 = 'ip_route_add_del' + route = IPUtil.compose_vpp_route_structure( + nodes['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 = 'sw_interface_set_unnumbered' + args1 = dict( + is_add=1, + sw_if_index=InterfaceUtil.get_interface_index( + nodes['DUT2'], if2_key), + unnumbered_sw_if_index=0 + ) + cmd2 = 'sw_interface_set_flags' + args2 = dict( + sw_if_index=0, + admin_up_down=1) + cmd3 = 'ip_route_add_del' + route = IPUtil.compose_vpp_route_structure( + nodes['DUT2'], raddr_ip1.compressed, + prefix_len=128 if raddr_ip1.version == 6 else 32, + interface=0 + ) + args3 = dict( + is_add=1, + is_multipath=0, + route=route + ) + err_msg = 'Failed to add IP routes on host {host}'.format( + host=nodes['DUT2']['host']) + for i in xrange(n_tunnels): + args1['unnumbered_sw_if_index'] = ipsec_tunnels[i] + args2['sw_if_index'] = ipsec_tunnels[i] + args3['route']['prefix']['address']['un'] = \ + IPUtil.union_addr(raddr_ip1 + i) + args3['route']['paths'][0]['sw_if_index'] = \ + ipsec_tunnels[i] + history = False if 1 < i < n_tunnels - 1 else True + papi_exec.add(cmd1, history=history, **args1). \ + add(cmd2, history=history, **args2). \ + add(cmd3, history=history, **args3) + papi_exec.get_replies(err_msg) @staticmethod - def vpp_ipsec_add_multiple_tunnels(node1, node2, interface1, interface2, - n_tunnels, crypto_alg, crypto_key, - integ_alg, integ_key, tunnel_ip1, - tunnel_ip2, raddr_ip1, raddr_ip2, - raddr_range): + def vpp_ipsec_add_multiple_tunnels( + nodes, interface1, interface2, n_tunnels, crypto_alg, integ_alg, + tunnel_ip1, tunnel_ip2, raddr_ip1, raddr_ip2, raddr_range): """Create multiple IPsec tunnels between two VPP nodes. - :param node1: VPP node 1 to create tunnels. - :param node2: VPP node 2 to create tunnels. + :param nodes: VPP nodes to create tunnels. :param interface1: Interface name or sw_if_index on node 1. :param interface2: Interface name or sw_if_index on node 2. :param n_tunnels: Number of tunnels to create. :param crypto_alg: The encryption algorithm name. - :param crypto_key: The encryption key string. :param integ_alg: The integrity algorithm name. - :param integ_key: The integrity key string. :param tunnel_ip1: Tunnel node1 IPv4 address. :param tunnel_ip2: Tunnel node2 IPv4 address. :param raddr_ip1: Policy selector remote IPv4 start address for the - first tunnel in direction node1->node2. + first tunnel in direction node1->node2. :param raddr_ip2: Policy selector remote IPv4 start address for the - first tunnel in direction node2->node1. + 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. - :type node1: dict - :type node2: dict + addresses. Valid values are from 1 to 32. + :type nodes: dict :type interface1: str or int :type interface2: str or int :type n_tunnels: int :type crypto_alg: CryptoAlg - :type crypto_key: str - :type integ_alg: str - :type integ_key: str + :type integ_alg: IntegAlg :type tunnel_ip1: str :type tunnel_ip2: str :type raddr_ip1: string @@ -663,61 +1213,71 @@ class IPsecUtil(object): spd_id = 1 p_hi = 100 p_lo = 10 - sa_id_1 = 10000 - sa_id_2 = 20000 - spi_1 = 30000 - spi_2 = 40000 - proto = 50 - - IPsecUtil.vpp_ipsec_add_spd(node1, spd_id) - IPsecUtil.vpp_ipsec_spd_add_if(node1, spd_id, interface1) - IPsecUtil.vpp_ipsec_spd_add_entry(node1, spd_id, p_hi, - PolicyAction.BYPASS, inbound=False, - proto=proto) - IPsecUtil.vpp_ipsec_spd_add_entry(node1, spd_id, p_hi, - PolicyAction.BYPASS, inbound=True, - proto=proto) - - IPsecUtil.vpp_ipsec_add_spd(node2, spd_id) - IPsecUtil.vpp_ipsec_spd_add_if(node2, spd_id, interface2) - IPsecUtil.vpp_ipsec_spd_add_entry(node2, spd_id, p_hi, - PolicyAction.BYPASS, inbound=False, - proto=proto) - IPsecUtil.vpp_ipsec_spd_add_entry(node2, spd_id, p_hi, - PolicyAction.BYPASS, inbound=True, - proto=proto) - - IPsecUtil.vpp_ipsec_add_sad_entries(node1, n_tunnels, sa_id_1, spi_1, - crypto_alg, crypto_key, integ_alg, - integ_key, tunnel_ip1, tunnel_ip2) - - IPsecUtil.vpp_ipsec_spd_add_entries(node1, n_tunnels, spd_id, p_lo, - False, sa_id_1, raddr_ip2, - raddr_range) - - IPsecUtil.vpp_ipsec_add_sad_entries(node2, n_tunnels, sa_id_1, spi_1, - crypto_alg, crypto_key, integ_alg, - integ_key, tunnel_ip1, tunnel_ip2) - - IPsecUtil.vpp_ipsec_spd_add_entries(node2, n_tunnels, spd_id, p_lo, - True, sa_id_1, raddr_ip2, - raddr_range) - - IPsecUtil.vpp_ipsec_add_sad_entries(node2, n_tunnels, sa_id_2, spi_2, - crypto_alg, crypto_key, integ_alg, - integ_key, tunnel_ip2, tunnel_ip1) - - IPsecUtil.vpp_ipsec_spd_add_entries(node2, n_tunnels, spd_id, p_lo, - False, sa_id_2, raddr_ip1, - raddr_range) - - IPsecUtil.vpp_ipsec_add_sad_entries(node1, n_tunnels, sa_id_2, spi_2, - crypto_alg, crypto_key, integ_alg, - integ_key, tunnel_ip2, tunnel_ip1) - - IPsecUtil.vpp_ipsec_spd_add_entries(node1, n_tunnels, spd_id, p_lo, - True, sa_id_2, raddr_ip1, - raddr_range) + sa_id_1 = 100000 + sa_id_2 = 200000 + spi_1 = 300000 + spi_2 = 400000 + + crypto_key = gen_key(IPsecUtil.get_crypto_alg_key_len(crypto_alg)) + integ_key = gen_key(IPsecUtil.get_integ_alg_key_len(integ_alg)) \ + if integ_alg else '' + + IPsecUtil.vpp_ipsec_set_ip_route( + nodes['DUT1'], n_tunnels, tunnel_ip1, raddr_ip2, tunnel_ip2, + interface1, raddr_range) + IPsecUtil.vpp_ipsec_set_ip_route( + nodes['DUT2'], n_tunnels, tunnel_ip2, raddr_ip1, tunnel_ip1, + interface2, raddr_range) + + IPsecUtil.vpp_ipsec_add_spd( + nodes['DUT1'], spd_id) + IPsecUtil.vpp_ipsec_spd_add_if( + nodes['DUT1'], spd_id, interface1) + IPsecUtil.vpp_ipsec_policy_add( + nodes['DUT1'], spd_id, p_hi, PolicyAction.BYPASS, inbound=False, + proto=50, laddr_range='100.0.0.0/8', raddr_range='100.0.0.0/8') + IPsecUtil.vpp_ipsec_policy_add( + nodes['DUT1'], spd_id, p_hi, PolicyAction.BYPASS, inbound=True, + proto=50, laddr_range='100.0.0.0/8', raddr_range='100.0.0.0/8') + + IPsecUtil.vpp_ipsec_add_spd( + nodes['DUT2'], spd_id) + IPsecUtil.vpp_ipsec_spd_add_if( + nodes['DUT2'], spd_id, interface2) + IPsecUtil.vpp_ipsec_policy_add( + nodes['DUT2'], spd_id, p_hi, PolicyAction.BYPASS, inbound=False, + proto=50, laddr_range='100.0.0.0/8', raddr_range='100.0.0.0/8') + IPsecUtil.vpp_ipsec_policy_add( + nodes['DUT2'], spd_id, p_hi, PolicyAction.BYPASS, inbound=True, + proto=50, laddr_range='100.0.0.0/8', raddr_range='100.0.0.0/8') + + IPsecUtil.vpp_ipsec_add_sad_entries( + nodes['DUT1'], n_tunnels, sa_id_1, spi_1, crypto_alg, crypto_key, + integ_alg, integ_key, tunnel_ip1, tunnel_ip2) + + IPsecUtil.vpp_ipsec_spd_add_entries( + nodes['DUT1'], n_tunnels, spd_id, p_lo, False, sa_id_1, raddr_ip2) + + IPsecUtil.vpp_ipsec_add_sad_entries( + nodes['DUT2'], n_tunnels, sa_id_1, spi_1, crypto_alg, crypto_key, + integ_alg, integ_key, tunnel_ip1, tunnel_ip2) + + IPsecUtil.vpp_ipsec_spd_add_entries( + nodes['DUT2'], n_tunnels, spd_id, p_lo, True, sa_id_1, raddr_ip2) + + IPsecUtil.vpp_ipsec_add_sad_entries( + nodes['DUT2'], n_tunnels, sa_id_2, spi_2, crypto_alg, crypto_key, + integ_alg, integ_key, tunnel_ip2, tunnel_ip1) + + IPsecUtil.vpp_ipsec_spd_add_entries( + nodes['DUT2'], n_tunnels, spd_id, p_lo, False, sa_id_2, raddr_ip1) + + IPsecUtil.vpp_ipsec_add_sad_entries( + nodes['DUT1'], n_tunnels, sa_id_2, spi_2, crypto_alg, crypto_key, + integ_alg, integ_key, tunnel_ip2, tunnel_ip1) + + IPsecUtil.vpp_ipsec_spd_add_entries( + nodes['DUT1'], n_tunnels, spd_id, p_lo, True, sa_id_2, raddr_ip1) @staticmethod def vpp_ipsec_show(node): @@ -726,5 +1286,4 @@ class IPsecUtil(object): :param node: Node to run command on. :type node: dict """ - VatExecutor().execute_script("ipsec/ipsec_show.vat", node, - json_out=False) + PapiSocketExecutor.run_cli_cmd(node, 'show ipsec')