2 *------------------------------------------------------------------
3 * flow_api.c - flow api
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
22 #include <vnet/ip/ip_types_api.h>
23 #include <vnet/udp/udp_local.h>
25 #include <vnet/interface.h>
26 #include <vnet/api_errno.h>
28 #include <vnet/fib/fib_table.h>
29 #include <vnet/ipfix-export/flow_report.h>
30 #include <vnet/ipfix-export/flow_report_classify.h>
32 #include <vnet/format_fns.h>
33 #include <vnet/ipfix-export/ipfix_export.api_enum.h>
34 #include <vnet/ipfix-export/ipfix_export.api_types.h>
36 #define REPLY_MSG_ID_BASE frm->msg_id_base
37 #include <vlibapi/api_helper_macros.h>
40 vnet_ipfix_exporter_lookup (ip4_address_t *ipfix_collector)
42 flow_report_main_t *frm = &flow_report_main;
43 ipfix_exporter_t *exp;
45 pool_foreach (exp, frm->exporters)
47 if (exp->ipfix_collector.as_u32 == ipfix_collector->as_u32)
55 * For backwards compatibility reasons index 0 in the set of exporters
56 * is alwyas used for the exporter created via the set_ipfix_exporter
59 #define USE_INDEX_0 true
60 #define USE_ANY_INDEX false
63 vl_api_set_ipfix_exporter_t_internal (
64 u32 client_index, vl_api_address_t *mp_collector_address,
65 u16 mp_collector_port, vl_api_address_t *mp_src_address, u32 mp_vrf_id,
66 u32 mp_path_mtu, u32 mp_template_interval, bool mp_udp_checksum,
67 bool use_index_0, bool is_create)
69 vlib_main_t *vm = vlib_get_main ();
70 flow_report_main_t *frm = &flow_report_main;
71 ipfix_exporter_t *exp;
72 vl_api_registration_t *reg;
73 ip4_address_t collector, src;
74 u16 collector_port = UDP_DST_PORT_ipfix;
76 u32 template_interval;
81 reg = vl_api_client_index_to_registration (client_index);
83 return VNET_API_ERROR_UNIMPLEMENTED;
85 /* Collector address is the key for the exporter lookup */
86 ip4_address_decode (mp_collector_address->un.ip4, &collector);
90 * In this case we update the existing exporter. There is no delete
93 exp = &frm->exporters[0];
98 exp = vnet_ipfix_exporter_lookup (&collector);
101 /* Create a new exporter instead of updating an existing one */
102 if (pool_elts (frm->exporters) >= IPFIX_EXPORTERS_MAX)
103 return VNET_API_ERROR_INVALID_VALUE;
104 pool_get (frm->exporters, exp);
106 return VNET_API_ERROR_INVALID_VALUE;
111 /* Delete the exporter */
112 exp = vnet_ipfix_exporter_lookup (&collector);
114 return VNET_API_ERROR_NO_SUCH_ENTRY;
116 pool_put (frm->exporters, exp);
121 if (mp_src_address->af == ADDRESS_IP6 ||
122 mp_collector_address->af == ADDRESS_IP6)
124 return VNET_API_ERROR_UNIMPLEMENTED;
127 collector_port = ntohs (mp_collector_port);
128 if (collector_port == (u16) ~ 0)
129 collector_port = UDP_DST_PORT_ipfix;
130 ip4_address_decode (mp_src_address->un.ip4, &src);
131 fib_id = ntohl (mp_vrf_id);
133 ip4_main_t *im = &ip4_main;
140 uword *p = hash_get (im->fib_index_by_table_id, fib_id);
142 return VNET_API_ERROR_NO_SUCH_FIB;
146 path_mtu = ntohl (mp_path_mtu);
148 path_mtu = 512; // RFC 7011 section 10.3.3.
149 template_interval = ntohl (mp_template_interval);
150 if (template_interval == ~0)
151 template_interval = 20;
152 udp_checksum = mp_udp_checksum;
154 if (collector.as_u32 != 0 && src.as_u32 == 0)
155 return VNET_API_ERROR_INVALID_VALUE;
157 if (path_mtu > 1450 /* vpp does not support fragmentation */ )
158 return VNET_API_ERROR_INVALID_VALUE;
161 return VNET_API_ERROR_INVALID_VALUE;
163 /* Calculate how much header data we need. */
164 exp->all_headers_size = sizeof (ip4_header_t) + sizeof (udp_header_t) +
165 sizeof (ipfix_message_header_t) +
166 sizeof (ipfix_set_header_t);
168 /* Reset report streams if we are reconfiguring IP addresses */
169 if (exp->ipfix_collector.as_u32 != collector.as_u32 ||
170 exp->src_address.as_u32 != src.as_u32 ||
171 exp->collector_port != collector_port)
172 vnet_flow_reports_reset (exp);
174 exp->ipfix_collector.as_u32 = collector.as_u32;
175 exp->collector_port = collector_port;
176 exp->src_address.as_u32 = src.as_u32;
177 exp->fib_index = fib_index;
178 exp->path_mtu = path_mtu;
179 exp->template_interval = template_interval;
180 exp->udp_checksum = udp_checksum;
182 /* Turn on the flow reporting process */
183 vlib_process_signal_event (vm, flow_report_process_node.index, 1, 0);
189 vl_api_set_ipfix_exporter_t_handler (vl_api_set_ipfix_exporter_t *mp)
191 vl_api_set_ipfix_exporter_reply_t *rmp;
192 flow_report_main_t *frm = &flow_report_main;
193 int rv = vl_api_set_ipfix_exporter_t_internal (
194 mp->client_index, &mp->collector_address, mp->collector_port,
195 &mp->src_address, mp->vrf_id, mp->path_mtu, mp->template_interval,
196 mp->udp_checksum, USE_INDEX_0, 0);
198 REPLY_MACRO (VL_API_SET_IPFIX_EXPORTER_REPLY);
202 vl_api_ipfix_exporter_create_delete_t_handler (
203 vl_api_ipfix_exporter_create_delete_t *mp)
205 vl_api_ipfix_exporter_create_delete_reply_t *rmp;
206 flow_report_main_t *frm = &flow_report_main;
207 int rv = vl_api_set_ipfix_exporter_t_internal (
208 mp->client_index, &mp->collector_address, mp->collector_port,
209 &mp->src_address, mp->vrf_id, mp->path_mtu, mp->template_interval,
210 mp->udp_checksum, USE_ANY_INDEX, mp->is_create);
212 REPLY_MACRO (VL_API_IPFIX_EXPORTER_CREATE_DELETE_REPLY);
216 vl_api_ipfix_exporter_dump_t_handler (vl_api_ipfix_exporter_dump_t * mp)
218 flow_report_main_t *frm = &flow_report_main;
219 ipfix_exporter_t *exp = pool_elt_at_index (flow_report_main.exporters, 0);
220 vl_api_registration_t *reg;
221 vl_api_ipfix_exporter_details_t *rmp;
222 ip4_main_t *im = &ip4_main;
223 ip46_address_t collector = {.as_u64[0] = 0,.as_u64[1] = 0 };
224 ip46_address_t src = {.as_u64[0] = 0,.as_u64[1] = 0 };
227 reg = vl_api_client_index_to_registration (mp->client_index);
231 rmp = vl_msg_api_alloc (sizeof (*rmp));
232 clib_memset (rmp, 0, sizeof (*rmp));
234 ntohs ((REPLY_MSG_ID_BASE) + VL_API_IPFIX_EXPORTER_DETAILS);
235 rmp->context = mp->context;
237 memcpy (&collector.ip4, &exp->ipfix_collector, sizeof (ip4_address_t));
238 ip_address_encode (&collector, IP46_TYPE_IP4, &rmp->collector_address);
240 rmp->collector_port = htons (exp->collector_port);
242 memcpy (&src.ip4, &exp->src_address, sizeof (ip4_address_t));
243 ip_address_encode (&src, IP46_TYPE_IP4, &rmp->src_address);
245 if (exp->fib_index == ~0)
248 vrf_id = im->fibs[exp->fib_index].ft_table_id;
249 rmp->vrf_id = htonl (vrf_id);
250 rmp->path_mtu = htonl (exp->path_mtu);
251 rmp->template_interval = htonl (exp->template_interval);
252 rmp->udp_checksum = (exp->udp_checksum != 0);
254 vl_api_send_msg (reg, (u8 *) rmp);
258 ipfix_all_fill_details (vl_api_ipfix_all_exporter_details_t *rmp,
259 ipfix_exporter_t *exp)
261 ip4_main_t *im = &ip4_main;
262 ip46_address_t collector = { .as_u64[0] = 0, .as_u64[1] = 0 };
263 ip46_address_t src = { .as_u64[0] = 0, .as_u64[1] = 0 };
266 memcpy (&collector.ip4, &exp->ipfix_collector, sizeof (ip4_address_t));
267 ip_address_encode (&collector, IP46_TYPE_IP4, &rmp->collector_address);
269 rmp->collector_port = htons (exp->collector_port);
271 memcpy (&src.ip4, &exp->src_address, sizeof (ip4_address_t));
272 ip_address_encode (&src, IP46_TYPE_IP4, &rmp->src_address);
274 if (exp->fib_index == ~0)
277 vrf_id = im->fibs[exp->fib_index].ft_table_id;
278 rmp->vrf_id = htonl (vrf_id);
279 rmp->path_mtu = htonl (exp->path_mtu);
280 rmp->template_interval = htonl (exp->template_interval);
281 rmp->udp_checksum = (exp->udp_checksum != 0);
285 ipfix_all_exporter_details (flow_report_main_t *frm, u32 index,
286 vl_api_registration_t *rp, u32 context)
288 ipfix_exporter_t *exp = pool_elt_at_index (frm->exporters, index);
290 vl_api_ipfix_all_exporter_details_t *rmp;
292 REPLY_MACRO_DETAILS4 (VL_API_IPFIX_ALL_EXPORTER_DETAILS, rp, context,
293 ({ ipfix_all_fill_details (rmp, exp); }));
297 vl_api_ipfix_all_exporter_get_t_handler (vl_api_ipfix_all_exporter_get_t *mp)
299 flow_report_main_t *frm = &flow_report_main;
300 vl_api_ipfix_all_exporter_get_reply_t *rmp;
303 REPLY_AND_DETAILS_MACRO (
304 VL_API_IPFIX_ALL_EXPORTER_GET_REPLY, frm->exporters,
305 ({ ipfix_all_exporter_details (frm, cursor, rp, mp->context); }));
309 vl_api_set_ipfix_classify_stream_t_handler
310 (vl_api_set_ipfix_classify_stream_t * mp)
312 vl_api_set_ipfix_classify_stream_reply_t *rmp;
313 flow_report_classify_main_t *fcm = &flow_report_classify_main;
314 flow_report_main_t *frm = &flow_report_main;
315 ipfix_exporter_t *exp = &frm->exporters[0];
317 u32 src_port = UDP_DST_PORT_ipfix;
320 domain_id = ntohl (mp->domain_id);
321 src_port = ntohs (mp->src_port);
323 if (fcm->src_port != 0 &&
324 (fcm->domain_id != domain_id || fcm->src_port != (u16) src_port))
326 int rv = vnet_stream_change (exp, fcm->domain_id, fcm->src_port,
327 domain_id, (u16) src_port);
331 fcm->domain_id = domain_id;
332 fcm->src_port = (u16) src_port;
334 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
338 vl_api_ipfix_classify_stream_dump_t_handler
339 (vl_api_ipfix_classify_stream_dump_t * mp)
341 flow_report_classify_main_t *fcm = &flow_report_classify_main;
342 vl_api_registration_t *reg;
343 vl_api_ipfix_classify_stream_details_t *rmp;
345 reg = vl_api_client_index_to_registration (mp->client_index);
349 rmp = vl_msg_api_alloc (sizeof (*rmp));
350 clib_memset (rmp, 0, sizeof (*rmp));
351 rmp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_STREAM_DETAILS);
352 rmp->context = mp->context;
353 rmp->domain_id = htonl (fcm->domain_id);
354 rmp->src_port = htons (fcm->src_port);
356 vl_api_send_msg (reg, (u8 *) rmp);
360 vl_api_ipfix_classify_table_add_del_t_handler
361 (vl_api_ipfix_classify_table_add_del_t * mp)
363 vl_api_ipfix_classify_table_add_del_reply_t *rmp;
364 vl_api_registration_t *reg;
365 flow_report_classify_main_t *fcm = &flow_report_classify_main;
366 flow_report_main_t *frm = &flow_report_main;
367 ipfix_exporter_t *exp = &frm->exporters[0];
368 vnet_flow_report_add_del_args_t args;
369 ipfix_classify_table_t *table;
371 u32 classify_table_index;
373 u8 transport_protocol;
376 reg = vl_api_client_index_to_registration (mp->client_index);
380 classify_table_index = ntohl (mp->table_id);
381 ip_version = (mp->ip_version == ADDRESS_IP4) ? 4 : 6;
382 transport_protocol = mp->transport_protocol;
385 if (fcm->src_port == 0)
387 /* call set_ipfix_classify_stream first */
388 rv = VNET_API_ERROR_UNSPECIFIED;
392 clib_memset (&args, 0, sizeof (args));
396 for (i = 0; i < vec_len (fcm->tables); i++)
397 if (ipfix_classify_table_index_valid (i))
398 if (fcm->tables[i].classify_table_index == classify_table_index)
400 table = &fcm->tables[i];
408 rv = VNET_API_ERROR_VALUE_EXIST;
411 table = ipfix_classify_add_table ();
412 table->classify_table_index = classify_table_index;
418 rv = VNET_API_ERROR_NO_SUCH_ENTRY;
423 table->ip_version = ip_version;
424 table->transport_protocol = transport_protocol;
426 args.opaque.as_uword = table - fcm->tables;
427 args.rewrite_callback = ipfix_classify_template_rewrite;
428 args.flow_data_callback = ipfix_classify_send_flows;
429 args.is_add = is_add;
430 args.domain_id = fcm->domain_id;
431 args.src_port = fcm->src_port;
433 rv = vnet_flow_report_add_del (exp, &args, NULL);
435 /* If deleting, or add failed */
436 if (is_add == 0 || (rv && is_add))
437 ipfix_classify_delete_table (table - fcm->tables);
440 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
444 send_ipfix_classify_table_details (u32 table_index,
445 vl_api_registration_t * reg, u32 context)
447 flow_report_classify_main_t *fcm = &flow_report_classify_main;
448 vl_api_ipfix_classify_table_details_t *mp;
450 ipfix_classify_table_t *table = &fcm->tables[table_index];
452 mp = vl_msg_api_alloc (sizeof (*mp));
453 clib_memset (mp, 0, sizeof (*mp));
454 mp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_TABLE_DETAILS);
455 mp->context = context;
456 mp->table_id = htonl (table->classify_table_index);
457 mp->ip_version = (table->ip_version == 4) ? ADDRESS_IP4 : ADDRESS_IP6;
458 mp->transport_protocol = table->transport_protocol;
460 vl_api_send_msg (reg, (u8 *) mp);
464 vl_api_ipfix_classify_table_dump_t_handler
465 (vl_api_ipfix_classify_table_dump_t * mp)
467 flow_report_classify_main_t *fcm = &flow_report_classify_main;
468 vl_api_registration_t *reg;
471 reg = vl_api_client_index_to_registration (mp->client_index);
475 for (i = 0; i < vec_len (fcm->tables); i++)
476 if (ipfix_classify_table_index_valid (i))
477 send_ipfix_classify_table_details (i, reg, mp->context);
481 vl_api_ipfix_flush_t_handler (vl_api_ipfix_flush_t * mp)
483 flow_report_main_t *frm = &flow_report_main;
484 vl_api_ipfix_flush_reply_t *rmp;
485 vl_api_registration_t *reg;
486 vlib_main_t *vm = vlib_get_main ();
489 reg = vl_api_client_index_to_registration (mp->client_index);
493 /* poke the flow reporting process */
494 vlib_process_signal_event (vm, flow_report_process_node.index,
495 1 /* type_opaque */ , 0 /* data */ );
497 REPLY_MACRO (VL_API_IPFIX_FLUSH_REPLY);
500 #include <vnet/ipfix-export/ipfix_export.api.c>
501 static clib_error_t *
502 flow_api_hookup (vlib_main_t * vm)
504 flow_report_main_t *frm = &flow_report_main;
506 * Set up the (msg_name, crc, message-id) table
508 REPLY_MSG_ID_BASE = setup_message_id_table ();
513 VLIB_API_INIT_FUNCTION (flow_api_hookup);
516 * fd.io coding-style-patch-verification: ON
519 * eval: (c-set-style "gnu")