test/vpp_ipsec.py

   1 from vpp_object import VppObject
   2 from ipaddress import ip_address
   3 from vpp_papi import VppEnum
   4 from vpp_interface import VppInterface
   5
   6 try:
   7     text_type = unicode
   8 except NameError:
   9     text_type = str
  10
  11
  12 def mk_counter():
  13     return {'packets': 0, 'bytes': 0}
  14
  15
  16 class VppIpsecSpd(VppObject):
  17     """
  18     VPP SPD DB
  19     """
  20
  21     def __init__(self, test, id):
  22         self.test = test
  23         self.id = id
  24
  25     def add_vpp_config(self):
  26         self.test.vapi.ipsec_spd_add_del(self.id)
  27         self.test.registry.register(self, self.test.logger)
  28
  29     def remove_vpp_config(self):
  30         self.test.vapi.ipsec_spd_add_del(self.id, is_add=0)
  31
  32     def object_id(self):
  33         return "ipsec-spd-%d" % self.id
  34
  35     def query_vpp_config(self):
  36         spds = self.test.vapi.ipsec_spds_dump()
  37         for spd in spds:
  38             if spd.spd_id == self.id:
  39                 return True
  40         return False
  41
  42
  43 class VppIpsecSpdItfBinding(VppObject):
  44     """
  45     VPP SPD DB to interface binding
  46     (i.e. this SPD is used on this interface)
  47     """
  48
  49     def __init__(self, test, spd, itf):
  50         self.test = test
  51         self.spd = spd
  52         self.itf = itf
  53
  54     def add_vpp_config(self):
  55         self.test.vapi.ipsec_interface_add_del_spd(self.spd.id,
  56                                                    self.itf.sw_if_index)
  57         self.test.registry.register(self, self.test.logger)
  58
  59     def remove_vpp_config(self):
  60         self.test.vapi.ipsec_interface_add_del_spd(self.spd.id,
  61                                                    self.itf.sw_if_index,
  62                                                    is_add=0)
  63
  64     def object_id(self):
  65         return "bind-%s-to-%s" % (self.spd.id, self.itf)
  66
  67     def query_vpp_config(self):
  68         bs = self.test.vapi.ipsec_spd_interface_dump()
  69         for b in bs:
  70             if b.sw_if_index == self.itf.sw_if_index:
  71                 return True
  72         return False
  73
  74
  75 class VppIpsecSpdEntry(VppObject):
  76     """
  77     VPP SPD DB Entry
  78     """
  79
  80     def __init__(self, test, spd, sa_id,
  81                  local_start, local_stop,
  82                  remote_start, remote_stop,
  83                  proto,
  84                  priority=100,
  85                  policy=None,
  86                  is_outbound=1,
  87                  remote_port_start=0,
  88                  remote_port_stop=65535,
  89                  local_port_start=0,
  90                  local_port_stop=65535):
  91         self.test = test
  92         self.spd = spd
  93         self.sa_id = sa_id
  94         self.local_start = ip_address(text_type(local_start))
  95         self.local_stop = ip_address(text_type(local_stop))
  96         self.remote_start = ip_address(text_type(remote_start))
  97         self.remote_stop = ip_address(text_type(remote_stop))
  98         self.proto = proto
  99         self.is_outbound = is_outbound
 100         self.priority = priority
 101         if not policy:
 102             self.policy = (VppEnum.vl_api_ipsec_spd_action_t.
 103                            IPSEC_API_SPD_ACTION_BYPASS)
 104         else:
 105             self.policy = policy
 106         self.is_ipv6 = (0 if self.local_start.version == 4 else 1)
 107         self.local_port_start = local_port_start
 108         self.local_port_stop = local_port_stop
 109         self.remote_port_start = remote_port_start
 110         self.remote_port_stop = remote_port_stop
 111
 112     def add_vpp_config(self):
 113         rv = self.test.vapi.ipsec_spd_entry_add_del(
 114             self.spd.id,
 115             self.sa_id,
 116             self.local_start,
 117             self.local_stop,
 118             self.remote_start,
 119             self.remote_stop,
 120             protocol=self.proto,
 121             is_ipv6=self.is_ipv6,
 122             is_outbound=self.is_outbound,
 123             priority=self.priority,
 124             policy=self.policy,
 125             local_port_start=self.local_port_start,
 126             local_port_stop=self.local_port_stop,
 127             remote_port_start=self.remote_port_start,
 128             remote_port_stop=self.remote_port_stop)
 129         self.stat_index = rv.stat_index
 130         self.test.registry.register(self, self.test.logger)
 131
 132     def remove_vpp_config(self):
 133         self.test.vapi.ipsec_spd_entry_add_del(
 134             self.spd.id,
 135             self.sa_id,
 136             self.local_start,
 137             self.local_stop,
 138             self.remote_start,
 139             self.remote_stop,
 140             protocol=self.proto,
 141             is_ipv6=self.is_ipv6,
 142             is_outbound=self.is_outbound,
 143             priority=self.priority,
 144             policy=self.policy,
 145             local_port_start=self.local_port_start,
 146             local_port_stop=self.local_port_stop,
 147             remote_port_start=self.remote_port_start,
 148             remote_port_stop=self.remote_port_stop,
 149             is_add=0)
 150
 151     def object_id(self):
 152         return "spd-entry-%d-%d-%d-%d-%d-%d" % (self.spd.id,
 153                                                 self.priority,
 154                                                 self.policy,
 155                                                 self.is_outbound,
 156                                                 self.is_ipv6,
 157                                                 self.remote_port_start)
 158
 159     def query_vpp_config(self):
 160         ss = self.test.vapi.ipsec_spd_dump(self.spd.id)
 161         for s in ss:
 162             if s.entry.sa_id == self.sa_id and \
 163                s.entry.is_outbound == self.is_outbound and \
 164                s.entry.priority == self.priority and \
 165                s.entry.policy == self.policy and \
 166                s.entry.remote_address_start == self.remote_start and \
 167                s.entry.remote_port_start == self.remote_port_start:
 168                 return True
 169         return False
 170
 171     def get_stats(self, worker=None):
 172         c = self.test.statistics.get_counter("/net/ipsec/policy")
 173         if worker is None:
 174             total = mk_counter()
 175             for t in c:
 176                 total['packets'] += t[self.stat_index]['packets']
 177             return total
 178         else:
 179             # +1 to skip main thread
 180             return c[worker+1][self.stat_index]
 181
 182
 183 class VppIpsecSA(VppObject):
 184     """
 185     VPP SAD Entry
 186     """
 187
 188     DEFAULT_UDP_PORT = 4500
 189
 190     def __init__(self, test, id, spi,
 191                  integ_alg, integ_key,
 192                  crypto_alg, crypto_key,
 193                  proto,
 194                  tun_src=None, tun_dst=None,
 195                  flags=None, salt=0, tun_flags=None,
 196                  dscp=None,
 197                  udp_src=None, udp_dst=None):
 198         e = VppEnum.vl_api_ipsec_sad_flags_t
 199         self.test = test
 200         self.id = id
 201         self.spi = spi
 202         self.integ_alg = integ_alg
 203         self.integ_key = integ_key
 204         self.crypto_alg = crypto_alg
 205         self.crypto_key = crypto_key
 206         self.proto = proto
 207         self.salt = salt
 208
 209         self.tun_src = tun_src
 210         self.tun_dst = tun_dst
 211         if not flags:
 212             self.flags = e.IPSEC_API_SAD_FLAG_NONE
 213         else:
 214             self.flags = flags
 215         if (tun_src):
 216             self.tun_src = ip_address(text_type(tun_src))
 217             self.flags = self.flags | e.IPSEC_API_SAD_FLAG_IS_TUNNEL
 218             if (self.tun_src.version == 6):
 219                 self.flags = self.flags | e.IPSEC_API_SAD_FLAG_IS_TUNNEL_V6
 220         if (tun_dst):
 221             self.tun_dst = ip_address(text_type(tun_dst))
 222         self.udp_src = udp_src
 223         self.udp_dst = udp_dst
 224         self.tun_flags = (VppEnum.vl_api_tunnel_encap_decap_flags_t.
 225                           TUNNEL_API_ENCAP_DECAP_FLAG_NONE)
 226         if tun_flags:
 227             self.tun_flags = tun_flags
 228         self.dscp = VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_CS0
 229         if dscp:
 230             self.dscp = dscp
 231
 232     def add_vpp_config(self):
 233         entry = {
 234             'sad_id': self.id,
 235             'spi': self.spi,
 236             'integrity_algorithm': self.integ_alg,
 237             'integrity_key': {
 238                 'length': len(self.integ_key),
 239                 'data': self.integ_key,
 240             },
 241             'crypto_algorithm': self.crypto_alg,
 242             'crypto_key': {
 243                 'data': self.crypto_key,
 244                 'length': len(self.crypto_key),
 245             },
 246             'protocol': self.proto,
 247             'tunnel_src': (self.tun_src if self.tun_src else []),
 248             'tunnel_dst': (self.tun_dst if self.tun_dst else []),
 249             'tunnel_flags': self.tun_flags,
 250             'dscp': self.dscp,
 251             'flags': self.flags,
 252             'salt': self.salt
 253         }
 254         # don't explicitly send the defaults, let papi fill them in
 255         if self.udp_src:
 256             entry['udp_src_port'] = self.udp_src
 257         if self.udp_dst:
 258             entry['udp_dst_port'] = self.udp_dst
 259         r = self.test.vapi.ipsec_sad_entry_add_del_v2(is_add=1, entry=entry)
 260         self.stat_index = r.stat_index
 261         self.test.registry.register(self, self.test.logger)
 262         return self
 263
 264     def remove_vpp_config(self):
 265         r = self.test.vapi.ipsec_sad_entry_add_del_v2(
 266             is_add=0,
 267             entry={
 268                 'sad_id': self.id,
 269                 'spi': self.spi,
 270                 'integrity_algorithm': self.integ_alg,
 271                 'integrity_key': {
 272                     'length': len(self.integ_key),
 273                     'data': self.integ_key,
 274                 },
 275                 'crypto_algorithm': self.crypto_alg,
 276                 'crypto_key': {
 277                     'data': self.crypto_key,
 278                     'length': len(self.crypto_key),
 279                 },
 280                 'protocol': self.proto,
 281                 'tunnel_src': (self.tun_src if self.tun_src else []),
 282                 'tunnel_dst': (self.tun_dst if self.tun_dst else []),
 283                 'flags': self.flags,
 284                 'salt': self.salt
 285             })
 286
 287     def object_id(self):
 288         return "ipsec-sa-%d" % self.id
 289
 290     def query_vpp_config(self):
 291         e = VppEnum.vl_api_ipsec_sad_flags_t
 292
 293         bs = self.test.vapi.ipsec_sa_v2_dump()
 294         for b in bs:
 295             if b.entry.sad_id == self.id:
 296                 # if udp encap is configured then the ports should match
 297                 # those configured or the default
 298                 if (self.flags & e.IPSEC_API_SAD_FLAG_UDP_ENCAP):
 299                     if not b.entry.flags & e.IPSEC_API_SAD_FLAG_UDP_ENCAP:
 300                         return False
 301                     if self.udp_src:
 302                         if self.udp_src != b.entry.udp_src_port:
 303                             return False
 304                     else:
 305                         if self.DEFAULT_UDP_PORT != b.entry.udp_src_port:
 306                             return False
 307                     if self.udp_dst:
 308                         if self.udp_dst != b.entry.udp_dst_port:
 309                             return False
 310                     else:
 311                         if self.DEFAULT_UDP_PORT != b.entry.udp_dst_port:
 312                             return False
 313                 return True
 314         return False
 315
 316     def get_stats(self, worker=None):
 317         c = self.test.statistics.get_counter("/net/ipsec/sa")
 318         if worker is None:
 319             total = mk_counter()
 320             for t in c:
 321                 total['packets'] += t[self.stat_index]['packets']
 322             return total
 323         else:
 324             # +1 to skip main thread
 325             return c[worker+1][self.stat_index]
 326
 327
 328 class VppIpsecTunProtect(VppObject):
 329     """
 330     VPP IPSEC tunnel protection
 331     """
 332
 333     def __init__(self, test, itf, sa_out, sas_in, nh=None):
 334         self.test = test
 335         self.itf = itf
 336         self.sas_in = []
 337         for sa in sas_in:
 338             self.sas_in.append(sa.id)
 339         self.sa_out = sa_out.id
 340         self.nh = nh
 341         if not self.nh:
 342             self.nh = "0.0.0.0"
 343
 344     def update_vpp_config(self, sa_out, sas_in):
 345         self.sas_in = []
 346         for sa in sas_in:
 347             self.sas_in.append(sa.id)
 348         self.sa_out = sa_out.id
 349         self.test.vapi.ipsec_tunnel_protect_update(
 350             tunnel={
 351                 'sw_if_index': self.itf._sw_if_index,
 352                 'n_sa_in': len(self.sas_in),
 353                 'sa_out': self.sa_out,
 354                 'sa_in': self.sas_in,
 355                 'nh': self.nh})
 356
 357     def object_id(self):
 358         return "ipsec-tun-protect-%s-%s" % (self.itf, self.nh)
 359
 360     def add_vpp_config(self):
 361         self.test.vapi.ipsec_tunnel_protect_update(
 362             tunnel={
 363                 'sw_if_index': self.itf._sw_if_index,
 364                 'n_sa_in': len(self.sas_in),
 365                 'sa_out': self.sa_out,
 366                 'sa_in': self.sas_in,
 367                 'nh': self.nh})
 368         self.test.registry.register(self, self.test.logger)
 369
 370     def remove_vpp_config(self):
 371         self.test.vapi.ipsec_tunnel_protect_del(
 372             sw_if_index=self.itf.sw_if_index,
 373             nh=self.nh)
 374
 375     def query_vpp_config(self):
 376         bs = self.test.vapi.ipsec_tunnel_protect_dump(
 377             sw_if_index=self.itf.sw_if_index)
 378         for b in bs:
 379             if b.tun.sw_if_index == self.itf.sw_if_index and \
 380                self.nh == str(b.tun.nh):
 381                 return True
 382         return False
 383
 384
 385 class VppIpsecInterface(VppInterface):
 386     """
 387     VPP IPSec interface
 388     """
 389
 390     def __init__(self, test, mode=None, instance=0xffffffff):
 391         super(VppIpsecInterface, self).__init__(test)
 392
 393         self.mode = mode
 394         if not self.mode:
 395             self.mode = (VppEnum.vl_api_tunnel_mode_t.
 396                          TUNNEL_API_MODE_P2P)
 397         self.instance = instance
 398
 399     def add_vpp_config(self):
 400         r = self.test.vapi.ipsec_itf_create(itf={
 401             'user_instance': self.instance,
 402             'mode': self.mode,
 403         })
 404         self.set_sw_if_index(r.sw_if_index)
 405         self.test.registry.register(self, self.test.logger)
 406         return self
 407
 408     def remove_vpp_config(self):
 409         self.test.vapi.ipsec_itf_delete(sw_if_index=self._sw_if_index)
 410
 411     def query_vpp_config(self):
 412         ts = self.test.vapi.ipsec_itf_dump(sw_if_index=0xffffffff)
 413         for t in ts:
 414             if t.tunnel.sw_if_index == self._sw_if_index:
 415                 return True
 416         return False
 417
 418     def __str__(self):
 419         return self.object_id()
 420
 421     def object_id(self):
 422         return "ipsec-%d" % self._sw_if_index