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 vl_api_set_ipfix_exporter_t_internal (
41 u32 client_index, vl_api_address_t *mp_collector_address,
42 u16 mp_collector_port, vl_api_address_t *mp_src_address, u32 mp_vrf_id,
43 u32 mp_path_mtu, u32 mp_template_interval, bool mp_udp_checksum)
45 vlib_main_t *vm = vlib_get_main ();
46 flow_report_main_t *frm = &flow_report_main;
47 ipfix_exporter_t *exp = pool_elt_at_index (frm->exporters, 0);
48 vl_api_registration_t *reg;
49 ip4_address_t collector, src;
50 u16 collector_port = UDP_DST_PORT_ipfix;
52 u32 template_interval;
57 reg = vl_api_client_index_to_registration (client_index);
59 return VNET_API_ERROR_UNIMPLEMENTED;
61 if (mp_src_address->af == ADDRESS_IP6 ||
62 mp_collector_address->af == ADDRESS_IP6)
64 return VNET_API_ERROR_UNIMPLEMENTED;
67 ip4_address_decode (mp_collector_address->un.ip4, &collector);
68 collector_port = ntohs (mp_collector_port);
69 if (collector_port == (u16) ~ 0)
70 collector_port = UDP_DST_PORT_ipfix;
71 ip4_address_decode (mp_src_address->un.ip4, &src);
72 fib_id = ntohl (mp_vrf_id);
74 ip4_main_t *im = &ip4_main;
81 uword *p = hash_get (im->fib_index_by_table_id, fib_id);
83 return VNET_API_ERROR_NO_SUCH_FIB;
87 path_mtu = ntohl (mp_path_mtu);
89 path_mtu = 512; // RFC 7011 section 10.3.3.
90 template_interval = ntohl (mp_template_interval);
91 if (template_interval == ~0)
92 template_interval = 20;
93 udp_checksum = mp_udp_checksum;
95 if (collector.as_u32 != 0 && src.as_u32 == 0)
96 return VNET_API_ERROR_INVALID_VALUE;
98 if (path_mtu > 1450 /* vpp does not support fragmentation */ )
99 return VNET_API_ERROR_INVALID_VALUE;
102 return VNET_API_ERROR_INVALID_VALUE;
104 /* Reset report streams if we are reconfiguring IP addresses */
105 if (exp->ipfix_collector.as_u32 != collector.as_u32 ||
106 exp->src_address.as_u32 != src.as_u32 ||
107 exp->collector_port != collector_port)
108 vnet_flow_reports_reset (exp);
110 exp->ipfix_collector.as_u32 = collector.as_u32;
111 exp->collector_port = collector_port;
112 exp->src_address.as_u32 = src.as_u32;
113 exp->fib_index = fib_index;
114 exp->path_mtu = path_mtu;
115 exp->template_interval = template_interval;
116 exp->udp_checksum = udp_checksum;
118 /* Turn on the flow reporting process */
119 vlib_process_signal_event (vm, flow_report_process_node.index, 1, 0);
125 vl_api_set_ipfix_exporter_t_handler (vl_api_set_ipfix_exporter_t *mp)
127 vl_api_set_ipfix_exporter_reply_t *rmp;
128 flow_report_main_t *frm = &flow_report_main;
129 int rv = vl_api_set_ipfix_exporter_t_internal (
130 mp->client_index, &mp->collector_address, mp->collector_port,
131 &mp->src_address, mp->vrf_id, mp->path_mtu, mp->template_interval,
134 REPLY_MACRO (VL_API_SET_IPFIX_EXPORTER_REPLY);
138 vl_api_ipfix_exporter_dump_t_handler (vl_api_ipfix_exporter_dump_t * mp)
140 flow_report_main_t *frm = &flow_report_main;
141 ipfix_exporter_t *exp = pool_elt_at_index (flow_report_main.exporters, 0);
142 vl_api_registration_t *reg;
143 vl_api_ipfix_exporter_details_t *rmp;
144 ip4_main_t *im = &ip4_main;
145 ip46_address_t collector = {.as_u64[0] = 0,.as_u64[1] = 0 };
146 ip46_address_t src = {.as_u64[0] = 0,.as_u64[1] = 0 };
149 reg = vl_api_client_index_to_registration (mp->client_index);
153 rmp = vl_msg_api_alloc (sizeof (*rmp));
154 clib_memset (rmp, 0, sizeof (*rmp));
156 ntohs ((REPLY_MSG_ID_BASE) + VL_API_IPFIX_EXPORTER_DETAILS);
157 rmp->context = mp->context;
159 memcpy (&collector.ip4, &exp->ipfix_collector, sizeof (ip4_address_t));
160 ip_address_encode (&collector, IP46_TYPE_IP4, &rmp->collector_address);
162 rmp->collector_port = htons (exp->collector_port);
164 memcpy (&src.ip4, &exp->src_address, sizeof (ip4_address_t));
165 ip_address_encode (&src, IP46_TYPE_IP4, &rmp->src_address);
167 if (exp->fib_index == ~0)
170 vrf_id = im->fibs[exp->fib_index].ft_table_id;
171 rmp->vrf_id = htonl (vrf_id);
172 rmp->path_mtu = htonl (exp->path_mtu);
173 rmp->template_interval = htonl (exp->template_interval);
174 rmp->udp_checksum = (exp->udp_checksum != 0);
176 vl_api_send_msg (reg, (u8 *) rmp);
180 vl_api_set_ipfix_classify_stream_t_handler
181 (vl_api_set_ipfix_classify_stream_t * mp)
183 vl_api_set_ipfix_classify_stream_reply_t *rmp;
184 flow_report_classify_main_t *fcm = &flow_report_classify_main;
185 flow_report_main_t *frm = &flow_report_main;
186 ipfix_exporter_t *exp = &frm->exporters[0];
188 u32 src_port = UDP_DST_PORT_ipfix;
191 domain_id = ntohl (mp->domain_id);
192 src_port = ntohs (mp->src_port);
194 if (fcm->src_port != 0 &&
195 (fcm->domain_id != domain_id || fcm->src_port != (u16) src_port))
197 int rv = vnet_stream_change (exp, fcm->domain_id, fcm->src_port,
198 domain_id, (u16) src_port);
202 fcm->domain_id = domain_id;
203 fcm->src_port = (u16) src_port;
205 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
209 vl_api_ipfix_classify_stream_dump_t_handler
210 (vl_api_ipfix_classify_stream_dump_t * mp)
212 flow_report_classify_main_t *fcm = &flow_report_classify_main;
213 vl_api_registration_t *reg;
214 vl_api_ipfix_classify_stream_details_t *rmp;
216 reg = vl_api_client_index_to_registration (mp->client_index);
220 rmp = vl_msg_api_alloc (sizeof (*rmp));
221 clib_memset (rmp, 0, sizeof (*rmp));
222 rmp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_STREAM_DETAILS);
223 rmp->context = mp->context;
224 rmp->domain_id = htonl (fcm->domain_id);
225 rmp->src_port = htons (fcm->src_port);
227 vl_api_send_msg (reg, (u8 *) rmp);
231 vl_api_ipfix_classify_table_add_del_t_handler
232 (vl_api_ipfix_classify_table_add_del_t * mp)
234 vl_api_ipfix_classify_table_add_del_reply_t *rmp;
235 vl_api_registration_t *reg;
236 flow_report_classify_main_t *fcm = &flow_report_classify_main;
237 flow_report_main_t *frm = &flow_report_main;
238 ipfix_exporter_t *exp = &frm->exporters[0];
239 vnet_flow_report_add_del_args_t args;
240 ipfix_classify_table_t *table;
242 u32 classify_table_index;
244 u8 transport_protocol;
247 reg = vl_api_client_index_to_registration (mp->client_index);
251 classify_table_index = ntohl (mp->table_id);
252 ip_version = (mp->ip_version == ADDRESS_IP4) ? 4 : 6;
253 transport_protocol = mp->transport_protocol;
256 if (fcm->src_port == 0)
258 /* call set_ipfix_classify_stream first */
259 rv = VNET_API_ERROR_UNSPECIFIED;
263 clib_memset (&args, 0, sizeof (args));
267 for (i = 0; i < vec_len (fcm->tables); i++)
268 if (ipfix_classify_table_index_valid (i))
269 if (fcm->tables[i].classify_table_index == classify_table_index)
271 table = &fcm->tables[i];
279 rv = VNET_API_ERROR_VALUE_EXIST;
282 table = ipfix_classify_add_table ();
283 table->classify_table_index = classify_table_index;
289 rv = VNET_API_ERROR_NO_SUCH_ENTRY;
294 table->ip_version = ip_version;
295 table->transport_protocol = transport_protocol;
297 args.opaque.as_uword = table - fcm->tables;
298 args.rewrite_callback = ipfix_classify_template_rewrite;
299 args.flow_data_callback = ipfix_classify_send_flows;
300 args.is_add = is_add;
301 args.domain_id = fcm->domain_id;
302 args.src_port = fcm->src_port;
304 rv = vnet_flow_report_add_del (exp, &args, NULL);
306 /* If deleting, or add failed */
307 if (is_add == 0 || (rv && is_add))
308 ipfix_classify_delete_table (table - fcm->tables);
311 REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
315 send_ipfix_classify_table_details (u32 table_index,
316 vl_api_registration_t * reg, u32 context)
318 flow_report_classify_main_t *fcm = &flow_report_classify_main;
319 vl_api_ipfix_classify_table_details_t *mp;
321 ipfix_classify_table_t *table = &fcm->tables[table_index];
323 mp = vl_msg_api_alloc (sizeof (*mp));
324 clib_memset (mp, 0, sizeof (*mp));
325 mp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_TABLE_DETAILS);
326 mp->context = context;
327 mp->table_id = htonl (table->classify_table_index);
328 mp->ip_version = (table->ip_version == 4) ? ADDRESS_IP4 : ADDRESS_IP6;
329 mp->transport_protocol = table->transport_protocol;
331 vl_api_send_msg (reg, (u8 *) mp);
335 vl_api_ipfix_classify_table_dump_t_handler
336 (vl_api_ipfix_classify_table_dump_t * mp)
338 flow_report_classify_main_t *fcm = &flow_report_classify_main;
339 vl_api_registration_t *reg;
342 reg = vl_api_client_index_to_registration (mp->client_index);
346 for (i = 0; i < vec_len (fcm->tables); i++)
347 if (ipfix_classify_table_index_valid (i))
348 send_ipfix_classify_table_details (i, reg, mp->context);
352 vl_api_ipfix_flush_t_handler (vl_api_ipfix_flush_t * mp)
354 flow_report_main_t *frm = &flow_report_main;
355 vl_api_ipfix_flush_reply_t *rmp;
356 vl_api_registration_t *reg;
357 vlib_main_t *vm = vlib_get_main ();
360 reg = vl_api_client_index_to_registration (mp->client_index);
364 /* poke the flow reporting process */
365 vlib_process_signal_event (vm, flow_report_process_node.index,
366 1 /* type_opaque */ , 0 /* data */ );
368 REPLY_MACRO (VL_API_IPFIX_FLUSH_REPLY);
371 #include <vnet/ipfix-export/ipfix_export.api.c>
372 static clib_error_t *
373 flow_api_hookup (vlib_main_t * vm)
375 flow_report_main_t *frm = &flow_report_main;
377 * Set up the (msg_name, crc, message-id) table
379 REPLY_MSG_ID_BASE = setup_message_id_table ();
384 VLIB_API_INIT_FUNCTION (flow_api_hookup);
387 * fd.io coding-style-patch-verification: ON
390 * eval: (c-set-style "gnu")