2 from logging import error
7 no_vpp_papi = os.getenv("NO_VPP_PAPI")
17 # from vnet/vnet/mpls/mpls_types.h
18 MPLS_IETF_MAX_LABEL = 0xfffff
19 MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1
25 class VppPapiProvider(object):
26 """VPP-api provider using vpp-papi
28 @property hook: hook object providing before and after api/cli hooks
33 def __init__(self, name, shm_prefix):
34 self.hook = Hook("vpp-papi-provider")
36 self.shm_prefix = shm_prefix
38 def register_hook(self, hook):
39 """Replace hook registration with new hook
47 """Connect the API to VPP"""
48 vpp_papi.connect(self.name, self.shm_prefix)
51 """Disconnect the API from VPP"""
54 def api(self, api_fn, api_args, expected_retval=0):
55 """Call API function and check it's return value
56 Call the appropriate hooks before and after the API call
58 :param api_fn: API function to call
59 :param api_args: tuple of API function arguments
60 :param expected_retval: Expected return value (Default value = 0)
61 :returns: reply from the API
64 self.hook.before_api(api_fn.__name__, api_args)
65 reply = api_fn(*api_args)
66 if hasattr(reply, 'retval') and reply.retval != expected_retval:
67 msg = "API call failed, expected retval == %d, got %s" % (
68 expected_retval, repr(reply))
71 self.hook.after_api(api_fn.__name__, api_args)
76 Execute a CLI, calling the before/after hooks appropriately.
78 :param cli: CLI to execute
82 self.hook.before_cli(cli)
84 r = vpp_papi.cli_inband(len(cli), cli)
85 self.hook.after_cli(cli)
86 if hasattr(r, 'reply'):
87 return r.reply[0].decode().rstrip('\x00')
91 Helping method to print CLI command in case of info logging level.
93 :param cli: CLI to execute
96 return cli + "\n" + self.cli(cli)
98 def show_version(self):
100 return vpp_papi.show_version()
102 def pg_create_interface(self, pg_index):
108 return self.api(vpp_papi.pg_create_interface, (pg_index, ))
110 def sw_interface_dump(self, filter=None):
113 :param filter: (Default value = None)
116 if filter is not None:
120 return self.api(vpp_papi.sw_interface_dump, args)
122 def sw_interface_set_table(self, sw_if_index, is_ipv6, table_id):
124 Set the IPvX Table-id for the Interface
131 return self.api(vpp_papi.sw_interface_set_table,
132 (sw_if_index, is_ipv6, table_id))
134 def sw_interface_add_del_address(self, sw_if_index, addr, addr_len,
135 is_ipv6=0, is_add=1, del_all=0):
138 :param addr: param is_ipv6: (Default value = 0)
141 :param is_ipv6: (Default value = 0)
142 :param is_add: (Default value = 1)
143 :param del_all: (Default value = 0)
146 return self.api(vpp_papi.sw_interface_add_del_address,
147 (sw_if_index, is_add, is_ipv6, del_all, addr_len, addr))
149 def sw_interface_enable_disable_mpls(self, sw_if_index,
152 Enable/Disable MPLS on the interface
154 :param is_enable: (Default value = 1)
157 return self.api(vpp_papi.sw_interface_set_mpls_enable,
158 (sw_if_index, is_enable))
160 def sw_interface_ra_suppress(self, sw_if_index):
175 return self.api(vpp_papi.sw_interface_ip6nd_ra_config,
176 (sw_if_index, suppress, managed, other,
177 ll_option, send_unicast, cease, is_no,
178 default_router, max_interval, min_interval,
179 lifetime, initial_count, initial_interval, async))
181 def vxlan_add_del_tunnel(
188 decap_next_index=0xFFFFFFFF,
194 :param is_add: (Default value = 1)
195 :param is_ipv6: (Default value = 0)
196 :param encap_vrf_id: (Default value = 0)
197 :param decap_next_index: (Default value = 0xFFFFFFFF)
198 :param vni: (Default value = 0)
201 return self.api(vpp_papi.vxlan_add_del_tunnel,
202 (is_add, is_ipv6, src_addr, dst_addr, encap_vrf_id,
203 decap_next_index, vni))
205 def sw_interface_set_l2_bridge(self, sw_if_index, bd_id,
206 shg=0, bvi=0, enable=1):
211 :param shg: (Default value = 0)
212 :param bvi: (Default value = 0)
213 :param enable: (Default value = 1)
216 return self.api(vpp_papi.sw_interface_set_l2_bridge,
217 (sw_if_index, bd_id, shg, bvi, enable))
219 def sw_interface_set_l2_xconnect(self, rx_sw_if_index, tx_sw_if_index,
221 """Create or delete unidirectional cross-connect from Tx interface to
224 :param rx_sw_if_index: Software interface index of Rx interface.
225 :param tx_sw_if_index: Software interface index of Tx interface.
226 :param enable: Create cross-connect if equal to 1, delete cross-connect
228 :type rx_sw_if_index: str or int
229 :type rx_sw_if_index: str or int
233 return self.api(vpp_papi.sw_interface_set_l2_xconnect,
234 (rx_sw_if_index, tx_sw_if_index, enable))
236 def sw_interface_set_l2_tag_rewrite(self, sw_if_index, vtr_oper, push=0, tag1=0, tag2=0):
237 """L2 interface vlan tag rewrite configure request
238 :param client_index - opaque cookie to identify the sender
239 :param context - sender context, to match reply w/ request
240 :param sw_if_index - interface the operation is applied to
241 :param vtr_op - Choose from l2_vtr_op_t enum values
242 :param push_dot1q - first pushed flag dot1q id set, else dot1ad
243 :param tag1 - Needed for any push or translate vtr op
244 :param tag2 - Needed for any push 2 or translate x-2 vtr ops
247 return self.api(vpp_papi.l2_interface_vlan_tag_rewrite,
248 (sw_if_index, vtr_oper, push, tag1, tag2))
250 def sw_interface_set_flags(self, sw_if_index, admin_up_down,
251 link_up_down=0, deleted=0):
254 :param admin_up_down:
256 :param link_up_down: (Default value = 0)
257 :param deleted: (Default value = 0)
260 return self.api(vpp_papi.sw_interface_set_flags,
261 (sw_if_index, admin_up_down, link_up_down, deleted))
263 def create_subif(self, sw_if_index, sub_id, outer_vlan, inner_vlan,
264 no_tags=0, one_tag=0, two_tags=0, dot1ad=0, exact_match=0,
265 default_sub=0, outer_vlan_id_any=0, inner_vlan_id_any=0):
266 """Create subinterface
267 from vpe.api: set dot1ad = 0 for dot1q, set dot1ad = 1 for dot1ad
269 :param sub_id: param inner_vlan:
273 :param no_tags: (Default value = 0)
274 :param one_tag: (Default value = 0)
275 :param two_tags: (Default value = 0)
276 :param dot1ad: (Default value = 0)
277 :param exact_match: (Default value = 0)
278 :param default_sub: (Default value = 0)
279 :param outer_vlan_id_any: (Default value = 0)
280 :param inner_vlan_id_any: (Default value = 0)
284 vpp_papi.create_subif,
298 def delete_subif(self, sw_if_index):
299 """Delete subinterface
303 return self.api(vpp_papi.delete_subif, ([sw_if_index]))
305 def create_vlan_subif(self, sw_if_index, vlan):
312 return self.api(vpp_papi.create_vlan_subif, (sw_if_index, vlan))
314 def create_loopback(self, mac=''):
317 :param mac: (Optional)
319 return self.api(vpp_papi.create_loopback, (mac,))
321 def ip_add_del_route(
326 next_hop_sw_if_index=0xFFFFFFFF,
329 classify_table_index=0xFFFFFFFF,
330 next_hop_out_label=MPLS_LABEL_INVALID,
332 create_vrf_if_needed=0,
343 is_resolve_attached=0,
348 :param dst_address_length:
349 :param next_hop_sw_if_index: (Default value = 0xFFFFFFFF)
351 :param next_hop_address:
352 :param next_hop_sw_if_index: (Default value = 0xFFFFFFFF)
353 :param vrf_id: (Default value = 0)
354 :param lookup_in_vrf: (Default value = 0)
355 :param resolve_attempts: (Default value = 0)
356 :param classify_table_index: (Default value = 0xFFFFFFFF)
357 :param create_vrf_if_needed: (Default value = 0)
358 :param resolve_if_needed: (Default value = 0)
359 :param is_add: (Default value = 1)
360 :param is_drop: (Default value = 0)
361 :param is_ipv6: (Default value = 0)
362 :param is_local: (Default value = 0)
363 :param is_classify: (Default value = 0)
364 :param is_multipath: (Default value = 0)
365 :param is_resolve_host: (Default value = 0)
366 :param is_resolve_attached: (Default value = 0)
367 :param not_last: (Default value = 0)
368 :param next_hop_weight: (Default value = 1)
372 vpp_papi.ip_add_del_route,
373 (next_hop_sw_if_index,
376 classify_table_index,
379 create_vrf_if_needed,
397 def ip_neighbor_add_del(self,
406 """ Add neighbor MAC to IPv4 or IPv6 address.
411 :param vrf_id: (Default value = 0)
412 :param is_add: (Default value = 1)
413 :param is_ipv6: (Default value = 0)
414 :param is_static: (Default value = 0)
418 vpp_papi.ip_neighbor_add_del,
429 def sw_interface_span_enable_disable(self, sw_if_index_from, sw_if_index_to, enable=1):
432 :param sw_if_index_from:
433 :param sw_if_index_to:
437 return self.api(vpp_papi.sw_interface_span_enable_disable, (sw_if_index_from, sw_if_index_to, enable ))
439 def gre_tunnel_add_del(self,
450 :param outer_fib_id: (Default value = 0)
451 :param is_add: (Default value = 1)
452 :param is_ipv6: (Default value = 0)
453 :param is_teb: (Default value = 0)
457 vpp_papi.gre_add_del_tunnel,