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" + str(self.cli(cli))
98 def _convert_mac(self, mac):
99 return int(mac.replace(":", ""), 16) << 16
101 def show_version(self):
103 return vpp_papi.show_version()
105 def pg_create_interface(self, pg_index):
111 return self.api(vpp_papi.pg_create_interface, (pg_index, ))
113 def sw_interface_dump(self, filter=None):
116 :param filter: (Default value = None)
119 if filter is not None:
123 return self.api(vpp_papi.sw_interface_dump, args)
125 def sw_interface_set_table(self, sw_if_index, is_ipv6, table_id):
127 Set the IPvX Table-id for the Interface
134 return self.api(vpp_papi.sw_interface_set_table,
135 (sw_if_index, is_ipv6, table_id))
137 def sw_interface_add_del_address(self, sw_if_index, addr, addr_len,
138 is_ipv6=0, is_add=1, del_all=0):
141 :param addr: param is_ipv6: (Default value = 0)
144 :param is_ipv6: (Default value = 0)
145 :param is_add: (Default value = 1)
146 :param del_all: (Default value = 0)
149 return self.api(vpp_papi.sw_interface_add_del_address,
150 (sw_if_index, is_add, is_ipv6, del_all, addr_len, addr))
152 def sw_interface_enable_disable_mpls(self, sw_if_index,
155 Enable/Disable MPLS on the interface
157 :param is_enable: (Default value = 1)
160 return self.api(vpp_papi.sw_interface_set_mpls_enable,
161 (sw_if_index, is_enable))
163 def sw_interface_ra_suppress(self, sw_if_index):
178 return self.api(vpp_papi.sw_interface_ip6nd_ra_config,
179 (sw_if_index, suppress, managed, other,
180 ll_option, send_unicast, cease, is_no,
181 default_router, max_interval, min_interval,
182 lifetime, initial_count, initial_interval, async))
184 def vxlan_add_del_tunnel(
191 decap_next_index=0xFFFFFFFF,
197 :param is_add: (Default value = 1)
198 :param is_ipv6: (Default value = 0)
199 :param encap_vrf_id: (Default value = 0)
200 :param decap_next_index: (Default value = 0xFFFFFFFF)
201 :param vni: (Default value = 0)
204 return self.api(vpp_papi.vxlan_add_del_tunnel,
205 (is_add, is_ipv6, src_addr, dst_addr, encap_vrf_id,
206 decap_next_index, vni))
208 def bridge_domain_add_del(self, bd_id, flood=1, uu_flood=1, forward=1,
209 learn=1, arp_term=0, is_add=1):
210 """Create/delete bridge domain.
212 :param int bd_id: Bridge domain index.
213 :param int flood: Enable/disable bcast/mcast flooding in the BD.
215 :param int uu_flood: Enable/disable unknown unicast flood in the BD.
217 :param int forward: Enable/disable forwarding on all interfaces in
218 the BD. (Default value = 1)
219 :param int learn: Enable/disable learning on all interfaces in the BD.
221 :param int arp_term: Enable/disable arp termination in the BD.
223 :param int is_add: Add or delete flag. (Default value = 1)
225 return self.api(vpp_papi.bridge_domain_add_del,
226 (bd_id, flood, uu_flood, forward, learn, arp_term,
229 def l2fib_add_del(self, mac, bd_id, sw_if_index, is_add=1, static_mac=0,
230 filter_mac=0, bvi_mac=0):
231 """Create/delete L2 FIB entry.
233 :param str mac: MAC address to create FIB entry for.
234 :param int bd_id: Bridge domain index.
235 :param int sw_if_index: Software interface index of the interface.
236 :param int is_add: Add or delete flag. (Default value = 1)
237 :param int static_mac: Set to 1 to create static MAC entry.
239 :param int filter_mac: Set to 1 to drop packet that's source or
240 destination MAC address contains defined MAC address.
242 :param int bvi_mac: Set to 1 to create entry that points to BVI
243 interface. (Default value = 0)
245 return self.api(vpp_papi.l2fib_add_del,
246 (self._convert_mac(mac), bd_id, sw_if_index, is_add,
247 static_mac, filter_mac, bvi_mac))
249 def sw_interface_set_l2_bridge(self, sw_if_index, bd_id,
250 shg=0, bvi=0, enable=1):
251 """Add/remove interface to/from bridge domain.
253 :param int sw_if_index: Software interface index of the interface.
254 :param int bd_id: Bridge domain index.
255 :param int shg: Split-horizon group index. (Default value = 0)
256 :param int bvi: Set interface as a bridge group virtual interface.
258 :param int enable: Add or remove interface. (Default value = 1)
260 return self.api(vpp_papi.sw_interface_set_l2_bridge,
261 (sw_if_index, bd_id, shg, bvi, enable))
263 def sw_interface_set_l2_xconnect(self, rx_sw_if_index, tx_sw_if_index,
265 """Create or delete unidirectional cross-connect from Tx interface to
268 :param int rx_sw_if_index: Software interface index of Rx interface.
269 :param int tx_sw_if_index: Software interface index of Tx interface.
270 :param int enable: Create cross-connect if equal to 1, delete
271 cross-connect if equal to 0.
274 return self.api(vpp_papi.sw_interface_set_l2_xconnect,
275 (rx_sw_if_index, tx_sw_if_index, enable))
277 def sw_interface_set_l2_tag_rewrite(self, sw_if_index, vtr_oper, push=0, tag1=0, tag2=0):
278 """L2 interface vlan tag rewrite configure request
279 :param client_index - opaque cookie to identify the sender
280 :param context - sender context, to match reply w/ request
281 :param sw_if_index - interface the operation is applied to
282 :param vtr_op - Choose from l2_vtr_op_t enum values
283 :param push_dot1q - first pushed flag dot1q id set, else dot1ad
284 :param tag1 - Needed for any push or translate vtr op
285 :param tag2 - Needed for any push 2 or translate x-2 vtr ops
288 return self.api(vpp_papi.l2_interface_vlan_tag_rewrite,
289 (sw_if_index, vtr_oper, push, tag1, tag2))
291 def sw_interface_set_flags(self, sw_if_index, admin_up_down,
292 link_up_down=0, deleted=0):
295 :param admin_up_down:
297 :param link_up_down: (Default value = 0)
298 :param deleted: (Default value = 0)
301 return self.api(vpp_papi.sw_interface_set_flags,
302 (sw_if_index, admin_up_down, link_up_down, deleted))
304 def create_subif(self, sw_if_index, sub_id, outer_vlan, inner_vlan,
305 no_tags=0, one_tag=0, two_tags=0, dot1ad=0, exact_match=0,
306 default_sub=0, outer_vlan_id_any=0, inner_vlan_id_any=0):
307 """Create subinterface
308 from vpe.api: set dot1ad = 0 for dot1q, set dot1ad = 1 for dot1ad
310 :param sub_id: param inner_vlan:
314 :param no_tags: (Default value = 0)
315 :param one_tag: (Default value = 0)
316 :param two_tags: (Default value = 0)
317 :param dot1ad: (Default value = 0)
318 :param exact_match: (Default value = 0)
319 :param default_sub: (Default value = 0)
320 :param outer_vlan_id_any: (Default value = 0)
321 :param inner_vlan_id_any: (Default value = 0)
325 vpp_papi.create_subif,
339 def delete_subif(self, sw_if_index):
340 """Delete subinterface
344 return self.api(vpp_papi.delete_subif, ([sw_if_index]))
346 def create_vlan_subif(self, sw_if_index, vlan):
353 return self.api(vpp_papi.create_vlan_subif, (sw_if_index, vlan))
355 def create_loopback(self, mac=''):
358 :param mac: (Optional)
360 return self.api(vpp_papi.create_loopback, (mac,))
362 def ip_add_del_route(
367 next_hop_sw_if_index=0xFFFFFFFF,
370 classify_table_index=0xFFFFFFFF,
371 next_hop_out_label=MPLS_LABEL_INVALID,
373 create_vrf_if_needed=0,
384 is_resolve_attached=0,
389 :param dst_address_length:
390 :param next_hop_sw_if_index: (Default value = 0xFFFFFFFF)
392 :param next_hop_address:
393 :param next_hop_sw_if_index: (Default value = 0xFFFFFFFF)
394 :param vrf_id: (Default value = 0)
395 :param lookup_in_vrf: (Default value = 0)
396 :param resolve_attempts: (Default value = 0)
397 :param classify_table_index: (Default value = 0xFFFFFFFF)
398 :param create_vrf_if_needed: (Default value = 0)
399 :param resolve_if_needed: (Default value = 0)
400 :param is_add: (Default value = 1)
401 :param is_drop: (Default value = 0)
402 :param is_ipv6: (Default value = 0)
403 :param is_local: (Default value = 0)
404 :param is_classify: (Default value = 0)
405 :param is_multipath: (Default value = 0)
406 :param is_resolve_host: (Default value = 0)
407 :param is_resolve_attached: (Default value = 0)
408 :param not_last: (Default value = 0)
409 :param next_hop_weight: (Default value = 1)
413 vpp_papi.ip_add_del_route,
414 (next_hop_sw_if_index,
417 classify_table_index,
420 create_vrf_if_needed,
438 def ip_neighbor_add_del(self,
447 """ Add neighbor MAC to IPv4 or IPv6 address.
452 :param vrf_id: (Default value = 0)
453 :param is_add: (Default value = 1)
454 :param is_ipv6: (Default value = 0)
455 :param is_static: (Default value = 0)
459 vpp_papi.ip_neighbor_add_del,
470 def sw_interface_span_enable_disable(self, sw_if_index_from, sw_if_index_to, enable=1):
473 :param sw_if_index_from:
474 :param sw_if_index_to:
478 return self.api(vpp_papi.sw_interface_span_enable_disable, (sw_if_index_from, sw_if_index_to, enable ))
480 def gre_tunnel_add_del(self,
491 :param outer_fib_id: (Default value = 0)
492 :param is_add: (Default value = 1)
493 :param is_ipv6: (Default value = 0)
494 :param is_teb: (Default value = 0)
498 vpp_papi.gre_add_del_tunnel,