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>
24 #include <vnet/interface.h>
25 #include <vnet/api_errno.h>
27 #include <vnet/fib/fib_table.h>
28 #include <vnet/ipfix-export/flow_report.h>
29 #include <vnet/ipfix-export/flow_report_classify.h>
31 #include <vnet/vnet_msg_enum.h>
33 #define vl_typedefs /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
37 #define vl_endianfun /* define message structures */
38 #include <vnet/vnet_all_api_h.h>
41 /* instantiate all the print functions we know about */
42 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
44 #include <vnet/vnet_all_api_h.h>
47 #include <vlibapi/api_helper_macros.h>
49 #define foreach_vpe_api_msg \
50 _(SET_IPFIX_EXPORTER, set_ipfix_exporter) \
51 _(IPFIX_EXPORTER_DUMP, ipfix_exporter_dump) \
52 _(SET_IPFIX_CLASSIFY_STREAM, set_ipfix_classify_stream) \
53 _(IPFIX_CLASSIFY_STREAM_DUMP, ipfix_classify_stream_dump) \
54 _(IPFIX_CLASSIFY_TABLE_ADD_DEL, ipfix_classify_table_add_del) \
55 _(IPFIX_CLASSIFY_TABLE_DUMP, ipfix_classify_table_dump) \
56 _(IPFIX_FLUSH, ipfix_flush)
59 vl_api_set_ipfix_exporter_t_handler (vl_api_set_ipfix_exporter_t * mp)
61 vlib_main_t *vm = vlib_get_main ();
62 flow_report_main_t *frm = &flow_report_main;
63 vl_api_registration_t *reg;
64 vl_api_set_ipfix_exporter_reply_t *rmp;
65 ip4_address_t collector, src;
66 u16 collector_port = UDP_DST_PORT_ipfix;
68 u32 template_interval;
74 reg = vl_api_client_index_to_registration (mp->client_index);
78 if (mp->src_address.af == ADDRESS_IP6
79 || mp->collector_address.af == ADDRESS_IP6)
81 rv = VNET_API_ERROR_UNIMPLEMENTED;
85 ip4_address_decode (mp->collector_address.un.ip4, &collector);
86 collector_port = ntohs (mp->collector_port);
87 if (collector_port == (u16) ~ 0)
88 collector_port = UDP_DST_PORT_ipfix;
89 ip4_address_decode (mp->src_address.un.ip4, &src);
90 fib_id = ntohl (mp->vrf_id);
92 ip4_main_t *im = &ip4_main;
99 uword *p = hash_get (im->fib_index_by_table_id, fib_id);
102 rv = VNET_API_ERROR_NO_SUCH_FIB;
108 path_mtu = ntohl (mp->path_mtu);
110 path_mtu = 512; // RFC 7011 section 10.3.3.
111 template_interval = ntohl (mp->template_interval);
112 if (template_interval == ~0)
113 template_interval = 20;
114 udp_checksum = mp->udp_checksum;
116 if (collector.as_u32 != 0 && src.as_u32 == 0)
118 rv = VNET_API_ERROR_INVALID_VALUE;
122 if (path_mtu > 1450 /* vpp does not support fragmentation */ )
124 rv = VNET_API_ERROR_INVALID_VALUE;
130 rv = VNET_API_ERROR_INVALID_VALUE;
134 /* Reset report streams if we are reconfiguring IP addresses */
135 if (frm->ipfix_collector.as_u32 != collector.as_u32 ||
136 frm->src_address.as_u32 != src.as_u32 ||
137 frm->collector_port != collector_port)
138 vnet_flow_reports_reset (frm);
140 frm->ipfix_collector.as_u32 = collector.as_u32;
141 frm->collector_port = collector_port;
142 frm->src_address.as_u32 = src.as_u32;
143 frm->fib_index = fib_index;
144 frm->path_mtu = path_mtu;
145 frm->template_interval = template_interval;
146 frm->udp_checksum = udp_checksum;
148 /* Turn on the flow reporting process */
149 vlib_process_signal_event (vm, flow_report_process_node.index, 1, 0);
152 REPLY_MACRO (VL_API_SET_IPFIX_EXPORTER_REPLY);
156 vl_api_ipfix_exporter_dump_t_handler (vl_api_ipfix_exporter_dump_t * mp)
158 flow_report_main_t *frm = &flow_report_main;
159 vl_api_registration_t *reg;
160 vl_api_ipfix_exporter_details_t *rmp;
161 ip4_main_t *im = &ip4_main;
162 ip46_address_t collector = {.as_u64[0] = 0,.as_u64[1] = 0 };
163 ip46_address_t src = {.as_u64[0] = 0,.as_u64[1] = 0 };
166 reg = vl_api_client_index_to_registration (mp->client_index);
170 rmp = vl_msg_api_alloc (sizeof (*rmp));
171 clib_memset (rmp, 0, sizeof (*rmp));
172 rmp->_vl_msg_id = ntohs (VL_API_IPFIX_EXPORTER_DETAILS);
173 rmp->context = mp->context;
175 memcpy (&collector.ip4, &frm->ipfix_collector, sizeof (ip4_address_t));
176 ip_address_encode (&collector, IP46_TYPE_IP4, &rmp->collector_address);
178 rmp->collector_port = htons (frm->collector_port);
180 memcpy (&src.ip4, &frm->src_address, sizeof (ip4_address_t));
181 ip_address_encode (&src, IP46_TYPE_IP4, &rmp->src_address);
183 if (frm->fib_index == ~0)
186 vrf_id = im->fibs[frm->fib_index].ft_table_id;
187 rmp->vrf_id = htonl (vrf_id);
188 rmp->path_mtu = htonl (frm->path_mtu);
189 rmp->template_interval = htonl (frm->template_interval);
190 rmp->udp_checksum = (frm->udp_checksum != 0);
192 vl_api_send_msg (reg, (u8 *) rmp);
196 vl_api_set_ipfix_classify_stream_t_handler
197 (vl_api_set_ipfix_classify_stream_t * mp)
199 vl_api_set_ipfix_classify_stream_reply_t *rmp;
200 flow_report_classify_main_t *fcm = &flow_report_classify_main;
201 flow_report_main_t *frm = &flow_report_main;
203 u32 src_port = UDP_DST_PORT_ipfix;
206 domain_id = ntohl (mp->domain_id);
207 src_port = ntohs (mp->src_port);
209 if (fcm->src_port != 0 &&
210 (fcm->domain_id != domain_id || fcm->src_port != (u16) src_port))
212 int rv = vnet_stream_change (frm, fcm->domain_id, fcm->src_port,
213 domain_id, (u16) src_port);
217 fcm->domain_id = domain_id;
218 fcm->src_port = (u16) src_port;
220 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
224 vl_api_ipfix_classify_stream_dump_t_handler
225 (vl_api_ipfix_classify_stream_dump_t * mp)
227 flow_report_classify_main_t *fcm = &flow_report_classify_main;
228 vl_api_registration_t *reg;
229 vl_api_ipfix_classify_stream_details_t *rmp;
231 reg = vl_api_client_index_to_registration (mp->client_index);
235 rmp = vl_msg_api_alloc (sizeof (*rmp));
236 clib_memset (rmp, 0, sizeof (*rmp));
237 rmp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_STREAM_DETAILS);
238 rmp->context = mp->context;
239 rmp->domain_id = htonl (fcm->domain_id);
240 rmp->src_port = htons (fcm->src_port);
242 vl_api_send_msg (reg, (u8 *) rmp);
246 vl_api_ipfix_classify_table_add_del_t_handler
247 (vl_api_ipfix_classify_table_add_del_t * mp)
249 vl_api_ipfix_classify_table_add_del_reply_t *rmp;
250 vl_api_registration_t *reg;
251 flow_report_classify_main_t *fcm = &flow_report_classify_main;
252 flow_report_main_t *frm = &flow_report_main;
253 vnet_flow_report_add_del_args_t args;
254 ipfix_classify_table_t *table;
256 u32 classify_table_index;
258 u8 transport_protocol;
261 reg = vl_api_client_index_to_registration (mp->client_index);
265 classify_table_index = ntohl (mp->table_id);
266 ip_version = ntohl (mp->ip_version);
267 transport_protocol = ntohl (mp->transport_protocol);
270 if (fcm->src_port == 0)
272 /* call set_ipfix_classify_stream first */
273 rv = VNET_API_ERROR_UNSPECIFIED;
277 clib_memset (&args, 0, sizeof (args));
281 for (i = 0; i < vec_len (fcm->tables); i++)
282 if (ipfix_classify_table_index_valid (i))
283 if (fcm->tables[i].classify_table_index == classify_table_index)
285 table = &fcm->tables[i];
293 rv = VNET_API_ERROR_VALUE_EXIST;
296 table = ipfix_classify_add_table ();
297 table->classify_table_index = classify_table_index;
303 rv = VNET_API_ERROR_NO_SUCH_ENTRY;
308 table->ip_version = ip_version;
309 table->transport_protocol = transport_protocol;
311 args.opaque.as_uword = table - fcm->tables;
312 args.rewrite_callback = ipfix_classify_template_rewrite;
313 args.flow_data_callback = ipfix_classify_send_flows;
314 args.is_add = is_add;
315 args.domain_id = fcm->domain_id;
316 args.src_port = fcm->src_port;
318 rv = vnet_flow_report_add_del (frm, &args, NULL);
320 /* If deleting, or add failed */
321 if (is_add == 0 || (rv && is_add))
322 ipfix_classify_delete_table (table - fcm->tables);
325 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
329 send_ipfix_classify_table_details (u32 table_index,
330 vl_api_registration_t * reg, u32 context)
332 flow_report_classify_main_t *fcm = &flow_report_classify_main;
333 vl_api_ipfix_classify_table_details_t *mp;
335 ipfix_classify_table_t *table = &fcm->tables[table_index];
337 mp = vl_msg_api_alloc (sizeof (*mp));
338 clib_memset (mp, 0, sizeof (*mp));
339 mp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_TABLE_DETAILS);
340 mp->context = context;
341 mp->table_id = htonl (table->classify_table_index);
342 mp->ip_version = htonl (table->ip_version);
343 mp->transport_protocol = htonl (table->transport_protocol);
345 vl_api_send_msg (reg, (u8 *) mp);
349 vl_api_ipfix_classify_table_dump_t_handler
350 (vl_api_ipfix_classify_table_dump_t * mp)
352 flow_report_classify_main_t *fcm = &flow_report_classify_main;
353 vl_api_registration_t *reg;
356 reg = vl_api_client_index_to_registration (mp->client_index);
360 for (i = 0; i < vec_len (fcm->tables); i++)
361 if (ipfix_classify_table_index_valid (i))
362 send_ipfix_classify_table_details (i, reg, mp->context);
366 vl_api_ipfix_flush_t_handler (vl_api_ipfix_flush_t * mp)
368 vl_api_ipfix_flush_reply_t *rmp;
369 vl_api_registration_t *reg;
370 vlib_main_t *vm = vlib_get_main ();
373 reg = vl_api_client_index_to_registration (mp->client_index);
377 /* poke the flow reporting process */
378 vlib_process_signal_event (vm, flow_report_process_node.index,
379 1 /* type_opaque */ , 0 /* data */ );
381 REPLY_MACRO (VL_API_IPFIX_FLUSH_REPLY);
386 * Add vpe's API message handlers to the table.
387 * vlib has already mapped shared memory and
388 * added the client registration handlers.
389 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
391 #define vl_msg_name_crc_list
392 #include <vnet/vnet_all_api_h.h>
393 #undef vl_msg_name_crc_list
396 setup_message_id_table (api_main_t * am)
398 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
399 foreach_vl_msg_name_crc_ipfix_export;
403 static clib_error_t *
404 flow_api_hookup (vlib_main_t * vm)
406 api_main_t *am = vlibapi_get_main ();
409 vl_msg_api_set_handlers(VL_API_##N, #n, \
410 vl_api_##n##_t_handler, \
412 vl_api_##n##_t_endian, \
413 vl_api_##n##_t_print, \
414 sizeof(vl_api_##n##_t), 1);
419 * Set up the (msg_name, crc, message-id) table
421 setup_message_id_table (am);
426 VLIB_API_INIT_FUNCTION (flow_api_hookup);
429 * fd.io coding-style-patch-verification: ON
432 * eval: (c-set-style "gnu")