Line data Source code
1 : /*
2 : * Copyright (c) 2018-2019 Cisco and/or its affiliates.
3 : * Licensed under the Apache License, Version 2.0 (the "License");
4 : * you may not use this
5 : * You may obtain a copy of the License at:
6 : *
7 : * http://www.apache.org/licenses/LICENSE-2.0
8 : *
9 : * Unless required by applicable law or agreed to in writing, software
10 : * distributed under the License is distributed on an "AS IS" BASIS,
11 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 : * See the License for the specific language governing permissions and
13 : * limitations under the License.
14 : */
15 :
16 : #include <vcl/vcl_private.h>
17 : #include <vlibmemory/api.h>
18 :
19 : #include <vnet/format_fns.h>
20 : #include <vnet/session/session.api_enum.h>
21 : #include <vnet/session/session.api_types.h>
22 :
23 : #define REPLY_MSG_ID_BASE msg_id_base
24 :
25 : static u16 msg_id_base;
26 :
27 : static u8 *
28 0 : format_api_error (u8 * s, va_list * args)
29 : {
30 0 : i32 error = va_arg (*args, u32);
31 : uword *p;
32 :
33 0 : p = hash_get (vcm->error_string_by_error_number, -error);
34 :
35 0 : if (p)
36 0 : s = format (s, "%s (%d)", p[0], error);
37 : else
38 0 : s = format (s, "%d", error);
39 0 : return s;
40 : }
41 :
42 : static void
43 29 : vl_api_session_enable_disable_reply_t_handler
44 : (vl_api_session_enable_disable_reply_t * mp)
45 : {
46 29 : vcl_worker_t *wrk = vcl_worker_get (0);
47 :
48 29 : if (mp->retval)
49 : {
50 0 : clib_warning ("VCL<%d>: session_enable_disable failed: %U", getpid (),
51 : format_api_error, ntohl (mp->retval));
52 : }
53 : else
54 29 : wrk->bapi_app_state = STATE_APP_ENABLED;
55 29 : }
56 :
57 : static void
58 29 : vl_api_app_attach_reply_t_handler (vl_api_app_attach_reply_t * mp)
59 : {
60 29 : vcl_worker_t *wrk = vcl_worker_get (0);
61 : u64 segment_handle;
62 29 : int *fds = 0, i, rv;
63 29 : u32 n_fds = 0;
64 29 : char *segment_name = 0;
65 :
66 29 : if (mp->retval)
67 : {
68 0 : VERR ("attach failed: %U", format_api_error, ntohl (mp->retval));
69 0 : goto failed;
70 : }
71 :
72 29 : vcl_set_worker_index (0);
73 :
74 29 : segment_handle = clib_net_to_host_u64 (mp->segment_handle);
75 29 : if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
76 : {
77 0 : VERR ("invalid segment handle");
78 0 : goto failed;
79 : }
80 :
81 29 : if (mp->n_fds)
82 : {
83 29 : vec_validate (fds, mp->n_fds);
84 29 : if (vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, fds, mp->n_fds,
85 : 5))
86 0 : goto failed;
87 :
88 29 : if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
89 29 : if (vcl_segment_attach (vcl_vpp_worker_segment_handle (0),
90 : "vpp-mq-seg", SSVM_SEGMENT_MEMFD,
91 29 : fds[n_fds++]))
92 0 : goto failed;
93 :
94 29 : if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
95 : {
96 29 : segment_name = vl_api_from_api_to_new_c_string (&mp->segment_name);
97 : rv =
98 29 : vcl_segment_attach (segment_handle, segment_name,
99 29 : SSVM_SEGMENT_MEMFD, fds[n_fds++]);
100 29 : vec_free (segment_name);
101 29 : if (rv != 0)
102 0 : goto failed;
103 : }
104 :
105 29 : vcl_segment_attach_mq (segment_handle, mp->app_mq, 0,
106 : &wrk->app_event_queue);
107 :
108 29 : if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
109 : {
110 0 : svm_msg_q_set_eventfd (wrk->app_event_queue, fds[n_fds]);
111 0 : vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
112 0 : n_fds++;
113 : }
114 :
115 29 : vcl_segment_discover_mqs (vcl_vpp_worker_segment_handle (0), fds + n_fds,
116 29 : mp->n_fds - n_fds);
117 29 : vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
118 29 : mp->vpp_ctrl_mq, mp->vpp_ctrl_mq_thread,
119 : &wrk->ctrl_mq);
120 29 : vcm->ctrl_mq = wrk->ctrl_mq;
121 :
122 29 : vec_free (fds);
123 : }
124 : else
125 : {
126 0 : segment_name = vl_api_from_api_to_new_c_string (&mp->segment_name);
127 : rv =
128 0 : vcl_segment_attach (segment_handle, segment_name, SSVM_SEGMENT_SHM,
129 : -1);
130 0 : vec_free (segment_name);
131 0 : if (rv != 0)
132 0 : goto failed;
133 : }
134 :
135 29 : vcm->app_index = clib_net_to_host_u32 (mp->app_index);
136 29 : wrk->bapi_app_state = STATE_APP_ATTACHED;
137 29 : return;
138 :
139 0 : failed:
140 0 : wrk->bapi_app_state = STATE_APP_FAILED;
141 0 : for (i = clib_max (n_fds - 1, 0); i < vec_len (fds); i++)
142 0 : close (fds[i]);
143 0 : vec_free (fds);
144 : }
145 :
146 : static void
147 11 : vl_api_app_worker_add_del_reply_t_handler (vl_api_app_worker_add_del_reply_t *
148 : mp)
149 : {
150 11 : int n_fds = 0, *fds = 0, i, rv;
151 : u64 segment_handle;
152 : vcl_worker_t *wrk;
153 : u32 wrk_index;
154 11 : char *segment_name = 0;
155 :
156 11 : if (!mp->is_add)
157 11 : return;
158 :
159 0 : wrk_index = mp->context;
160 0 : wrk = vcl_worker_get_if_valid (wrk_index);
161 0 : if (!wrk)
162 0 : return;
163 :
164 0 : if (mp->retval)
165 : {
166 0 : clib_warning ("VCL<%d>: add/del worker failed: %U", getpid (),
167 : format_api_error, ntohl (mp->retval));
168 0 : goto failed;
169 : }
170 :
171 0 : vcl_set_worker_index (wrk_index);
172 0 : wrk->vpp_wrk_index = clib_net_to_host_u32 (mp->wrk_index);
173 0 : wrk->ctrl_mq = vcm->ctrl_mq;
174 :
175 0 : segment_handle = clib_net_to_host_u64 (mp->segment_handle);
176 0 : if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
177 : {
178 0 : clib_warning ("invalid segment handle");
179 0 : goto failed;
180 : }
181 :
182 0 : if (mp->n_fds)
183 : {
184 0 : vec_validate (fds, mp->n_fds);
185 0 : if (vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, fds, mp->n_fds,
186 : 5))
187 0 : goto failed;
188 :
189 0 : if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
190 0 : if (vcl_segment_attach (vcl_vpp_worker_segment_handle (wrk_index),
191 : "vpp-worker-seg", SSVM_SEGMENT_MEMFD,
192 0 : fds[n_fds++]))
193 0 : goto failed;
194 :
195 0 : if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
196 : {
197 0 : segment_name = vl_api_from_api_to_new_c_string (&mp->segment_name);
198 : rv =
199 0 : vcl_segment_attach (segment_handle, segment_name,
200 0 : SSVM_SEGMENT_MEMFD, fds[n_fds++]);
201 0 : vec_free (segment_name);
202 0 : if (rv != 0)
203 0 : goto failed;
204 : }
205 :
206 0 : vcl_segment_attach_mq (segment_handle, mp->app_event_queue_address, 0,
207 : &wrk->app_event_queue);
208 :
209 0 : if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
210 : {
211 0 : svm_msg_q_set_eventfd (wrk->app_event_queue, fds[n_fds]);
212 0 : vcl_mq_epoll_add_evfd (wrk, wrk->app_event_queue);
213 0 : n_fds++;
214 : }
215 :
216 0 : vec_free (fds);
217 : }
218 : else
219 : {
220 0 : segment_name = vl_api_from_api_to_new_c_string (&mp->segment_name);
221 : rv =
222 0 : vcl_segment_attach (segment_handle, segment_name, SSVM_SEGMENT_SHM,
223 : -1);
224 0 : vec_free (segment_name);
225 0 : if (rv != 0)
226 0 : goto failed;
227 : }
228 0 : wrk->bapi_app_state = STATE_APP_READY;
229 0 : VDBG (0, "worker %u vpp-worker %u added", wrk_index, wrk->vpp_wrk_index);
230 0 : return;
231 :
232 0 : failed:
233 0 : wrk->bapi_app_state = STATE_APP_FAILED;
234 0 : for (i = clib_max (n_fds - 1, 0); i < vec_len (fds); i++)
235 0 : close (fds[i]);
236 0 : vec_free (fds);
237 : }
238 :
239 : static void
240 2 : vl_api_app_add_cert_key_pair_reply_t_handler (
241 : vl_api_app_add_cert_key_pair_reply_t *mp)
242 : {
243 2 : vcl_worker_t *wrk = vcl_worker_get_current ();
244 :
245 2 : if (mp->retval)
246 : {
247 0 : VDBG (0, "Adding cert and key failed: %U", format_api_error,
248 : ntohl (mp->retval));
249 0 : return;
250 : }
251 2 : wrk->bapi_return = clib_net_to_host_u32 (mp->index);
252 2 : wrk->bapi_app_state = STATE_APP_READY;
253 : }
254 :
255 : static void
256 0 : vl_api_app_del_cert_key_pair_reply_t_handler (
257 : vl_api_app_del_cert_key_pair_reply_t *mp)
258 : {
259 0 : if (mp->retval)
260 : {
261 0 : VDBG (0, "Deleting cert and key failed: %U", format_api_error,
262 : ntohl (mp->retval));
263 0 : return;
264 : }
265 : }
266 :
267 : #define foreach_sock_msg \
268 : _ (SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
269 : _ (APP_ATTACH_REPLY, app_attach_reply) \
270 : _ (APP_ADD_CERT_KEY_PAIR_REPLY, app_add_cert_key_pair_reply) \
271 : _ (APP_DEL_CERT_KEY_PAIR_REPLY, app_del_cert_key_pair_reply) \
272 : _ (APP_WORKER_ADD_DEL_REPLY, app_worker_add_del_reply)
273 :
274 : #define vl_endianfun /* define message structures */
275 : #include <vnet/session/session.api.h>
276 : #undef vl_endianfun
277 :
278 : #define vl_calcsizefun
279 : #include <vnet/session/session.api.h>
280 : #undef vl_calcsizefun
281 :
282 : /* instantiate all the print functions we know about */
283 : #define vl_printfun
284 : #include <vnet/session/session.api.h>
285 : #undef vl_printfun
286 :
287 : #define vl_api_version(n, v) static u32 api_version = v;
288 : #include <vnet/session/session.api.h>
289 : #undef vl_api_version
290 :
291 : static void
292 29 : vcl_bapi_hookup (void)
293 : {
294 29 : u8 *msg_base_lookup_name = format (0, "session_%08x%c", api_version, 0);
295 :
296 29 : REPLY_MSG_ID_BASE =
297 29 : vl_client_get_first_plugin_msg_id ((char *) msg_base_lookup_name);
298 :
299 29 : vec_free (msg_base_lookup_name);
300 :
301 29 : if (REPLY_MSG_ID_BASE == (u16) ~0)
302 0 : return;
303 :
304 : #define _(N, n) \
305 : vl_msg_api_config (&(vl_msg_api_msg_config_t){ \
306 : .id = REPLY_MSG_ID_BASE + VL_API_##N, \
307 : .name = #n, \
308 : .handler = vl_api_##n##_t_handler, \
309 : .endian = vl_api_##n##_t_endian, \
310 : .format_fn = vl_api_##n##_t_format, \
311 : .size = sizeof (vl_api_##n##_t), \
312 : .traced = 1, \
313 : .tojson = vl_api_##n##_t_tojson, \
314 : .fromjson = vl_api_##n##_t_fromjson, \
315 : .calc_size = vl_api_##n##_t_calc_size, \
316 : });
317 29 : foreach_sock_msg;
318 : #undef _
319 : }
320 :
321 : /*
322 : * VPP-API message functions
323 : */
324 : static void
325 29 : vcl_bapi_send_session_enable_disable (u8 is_enable)
326 : {
327 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
328 : vl_api_session_enable_disable_t *bmp;
329 29 : bmp = vl_msg_api_alloc (sizeof (*bmp));
330 29 : memset (bmp, 0, sizeof (*bmp));
331 :
332 29 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_SESSION_ENABLE_DISABLE);
333 29 : bmp->client_index = wrk->api_client_handle;
334 29 : bmp->context = htonl (0xfeedface);
335 29 : bmp->is_enable = is_enable;
336 29 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & bmp);
337 29 : }
338 :
339 : void
340 29 : vcl_bapi_send_attach (void)
341 : {
342 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
343 29 : u8 tls_engine = CRYPTO_ENGINE_OPENSSL;
344 : vl_api_app_attach_t *bmp;
345 29 : u8 nsid_len = vec_len (vcm->cfg.namespace_id);
346 58 : u8 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp ||
347 29 : vcm->cfg.app_proxy_transport_udp);
348 :
349 29 : tls_engine = vcm->cfg.tls_engine ? vcm->cfg.tls_engine : tls_engine;
350 :
351 29 : bmp = vl_msg_api_alloc (sizeof (*bmp));
352 29 : memset (bmp, 0, sizeof (*bmp));
353 :
354 29 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_ATTACH);
355 29 : bmp->client_index = wrk->api_client_handle;
356 29 : bmp->context = htonl (0xfeedface);
357 29 : bmp->options[APP_OPTIONS_FLAGS] =
358 29 : APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
359 29 : (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) |
360 29 : (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) |
361 29 : (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0) |
362 29 : (vcm->cfg.use_mq_eventfd ? APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD : 0) |
363 29 : (vcm->cfg.huge_page ? APP_OPTIONS_FLAGS_USE_HUGE_PAGE : 0);
364 29 : bmp->options[APP_OPTIONS_PROXY_TRANSPORT] =
365 58 : (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
366 29 : (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0));
367 29 : bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
368 29 : bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
369 29 : bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
370 29 : bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
371 29 : bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
372 29 : vcm->cfg.preallocated_fifo_pairs;
373 29 : bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size;
374 29 : bmp->options[APP_OPTIONS_TLS_ENGINE] = tls_engine;
375 29 : if (nsid_len)
376 : {
377 19 : vl_api_vec_to_api_string (vcm->cfg.namespace_id, &bmp->namespace_id);
378 19 : bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret;
379 : }
380 29 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & bmp);
381 29 : }
382 :
383 : void
384 0 : vcl_bapi_send_detach (void)
385 : {
386 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
387 : vl_api_application_detach_t *bmp;
388 0 : bmp = vl_msg_api_alloc (sizeof (*bmp));
389 0 : memset (bmp, 0, sizeof (*bmp));
390 :
391 0 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APPLICATION_DETACH);
392 0 : bmp->client_index = wrk->api_client_handle;
393 0 : bmp->context = htonl (0xfeedface);
394 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & bmp);
395 0 : }
396 :
397 : static void
398 11 : vcl_bapi_send_app_worker_add_del (u8 is_add)
399 : {
400 11 : vcl_worker_t *wrk = vcl_worker_get_current ();
401 : vl_api_app_worker_add_del_t *mp;
402 :
403 11 : mp = vl_msg_api_alloc (sizeof (*mp));
404 11 : memset (mp, 0, sizeof (*mp));
405 :
406 11 : mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_WORKER_ADD_DEL);
407 11 : mp->client_index = wrk->api_client_handle;
408 11 : mp->app_index = clib_host_to_net_u32 (vcm->app_index);
409 11 : mp->context = wrk->wrk_index;
410 11 : mp->is_add = is_add;
411 11 : if (!is_add)
412 11 : mp->wrk_index = clib_host_to_net_u32 (wrk->vpp_wrk_index);
413 :
414 11 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & mp);
415 11 : }
416 :
417 : static void
418 0 : vcl_bapi_send_child_worker_del (vcl_worker_t * child_wrk)
419 : {
420 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
421 : vl_api_app_worker_add_del_t *mp;
422 :
423 0 : mp = vl_msg_api_alloc (sizeof (*mp));
424 0 : memset (mp, 0, sizeof (*mp));
425 :
426 0 : mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_WORKER_ADD_DEL);
427 0 : mp->client_index = wrk->api_client_handle;
428 0 : mp->app_index = clib_host_to_net_u32 (vcm->app_index);
429 0 : mp->context = wrk->wrk_index;
430 0 : mp->is_add = 0;
431 0 : mp->wrk_index = clib_host_to_net_u32 (child_wrk->vpp_wrk_index);
432 :
433 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & mp);
434 0 : }
435 :
436 : static void
437 2 : vcl_bapi_send_app_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
438 : {
439 2 : vcl_worker_t *wrk = vcl_worker_get_current ();
440 2 : u32 cert_len = ckpair->cert_len;
441 2 : u32 key_len = ckpair->key_len;
442 : vl_api_app_add_cert_key_pair_t *bmp;
443 :
444 2 : bmp = vl_msg_api_alloc (sizeof (*bmp) + cert_len + key_len);
445 2 : clib_memset (bmp, 0, sizeof (*bmp) + cert_len + key_len);
446 :
447 2 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_ADD_CERT_KEY_PAIR);
448 2 : bmp->client_index = wrk->api_client_handle;
449 2 : bmp->context = wrk->wrk_index;
450 2 : bmp->cert_len = clib_host_to_net_u16 (cert_len);
451 2 : bmp->certkey_len = clib_host_to_net_u16 (key_len + cert_len);
452 2 : clib_memcpy_fast (bmp->certkey, ckpair->cert, cert_len);
453 2 : clib_memcpy_fast (bmp->certkey + cert_len, ckpair->key, key_len);
454 :
455 2 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) &bmp);
456 2 : }
457 :
458 : static void
459 0 : vcl_bapi_send_app_del_cert_key_pair (u32 ckpair_index)
460 : {
461 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
462 : vl_api_app_del_cert_key_pair_t *bmp;
463 0 : bmp = vl_msg_api_alloc (sizeof (*bmp));
464 0 : clib_memset (bmp, 0, sizeof (*bmp));
465 :
466 0 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_DEL_CERT_KEY_PAIR);
467 0 : bmp->client_index = wrk->api_client_handle;
468 0 : bmp->context = wrk->wrk_index;
469 0 : bmp->index = clib_host_to_net_u32 (ckpair_index);
470 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) &bmp);
471 0 : }
472 :
473 : u32
474 0 : vcl_bapi_max_nsid_len (void)
475 : {
476 : vl_api_app_attach_t *mp;
477 0 : return (sizeof (mp->namespace_id) - 1);
478 : }
479 :
480 : static void
481 29 : vcl_bapi_init_error_string_table (void)
482 : {
483 29 : vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
484 :
485 : #define _(n, v, s) hash_set (vcm->error_string_by_error_number, -v, s);
486 29 : foreach_vnet_api_error;
487 : #undef _
488 :
489 29 : hash_set (vcm->error_string_by_error_number, 99, "Misc");
490 29 : }
491 :
492 : static void
493 29 : vcl_bapi_cleanup (void)
494 : {
495 29 : socket_client_main_t *scm = &socket_client_main;
496 29 : api_main_t *am = vlibapi_get_main ();
497 :
498 29 : am->my_client_index = ~0;
499 29 : am->my_registration = 0;
500 29 : am->vl_input_queue = 0;
501 29 : am->msg_index_by_name_and_crc = 0;
502 29 : scm->socket_fd = 0;
503 :
504 29 : vl_client_api_unmap ();
505 29 : }
506 :
507 : static int
508 29 : vcl_bapi_connect_to_vpp (void)
509 : {
510 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
511 29 : vppcom_cfg_t *vcl_cfg = &vcm->cfg;
512 29 : int rv = VPPCOM_OK;
513 : api_main_t *am;
514 : u8 *wrk_name;
515 :
516 29 : wrk_name = format (0, "%v-wrk-%u%c", vcm->app_name, wrk->wrk_index, 0);
517 :
518 : /* Make sure api is cleaned up in case this is a connect from a
519 : * forked worker */
520 29 : vcl_bapi_cleanup ();
521 :
522 29 : vlibapi_set_main (&wrk->bapi_api_ctx);
523 29 : vlibapi_set_memory_client_main (&wrk->bapi_mem_ctx);
524 :
525 29 : if (!vcl_cfg->vpp_bapi_socket_name)
526 : {
527 0 : rv = VPPCOM_EINVAL;
528 0 : goto error;
529 : }
530 :
531 29 : if (vl_socket_client_connect2 (&wrk->bapi_sock_ctx,
532 29 : (char *) vcl_cfg->vpp_bapi_socket_name,
533 : (char *) wrk_name,
534 : 0 /* default rx/tx buffer */ ))
535 : {
536 0 : VERR ("app (%s) socket connect failed!", wrk_name);
537 0 : rv = VPPCOM_ECONNREFUSED;
538 0 : goto error;
539 : }
540 :
541 29 : if (vl_socket_client_init_shm2 (&wrk->bapi_sock_ctx, 0,
542 : 1 /* want_pthread */ ))
543 : {
544 0 : VERR ("app (%s) init shm failed!", wrk_name);
545 0 : rv = VPPCOM_ECONNREFUSED;
546 0 : goto error;
547 : }
548 29 : vcl_bapi_hookup ();
549 :
550 29 : am = vlibapi_get_main ();
551 29 : wrk->vl_input_queue = am->shmem_hdr->vl_input_queue;
552 29 : wrk->api_client_handle = (u32) am->my_client_index;
553 :
554 29 : VDBG (0, "app (%s) is connected to VPP!", wrk_name);
555 : vcl_evt (VCL_EVT_INIT, vcm);
556 :
557 0 : error:
558 29 : vec_free (wrk_name);
559 29 : return rv;
560 : }
561 :
562 : void
563 29 : vcl_bapi_disconnect_from_vpp (void)
564 : {
565 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
566 29 : vppcom_cfg_t *vcl_cfg = &vcm->cfg;
567 :
568 29 : if (vcl_cfg->vpp_bapi_socket_name)
569 29 : vl_socket_client_disconnect2 (&wrk->bapi_sock_ctx);
570 : else
571 0 : vl_client_disconnect_from_vlib ();
572 29 : }
573 :
574 : static const char *
575 0 : vcl_bapi_app_state_str (vcl_bapi_app_state_t state)
576 : {
577 : char *st;
578 :
579 0 : switch (state)
580 : {
581 0 : case STATE_APP_START:
582 0 : st = "STATE_APP_START";
583 0 : break;
584 :
585 0 : case STATE_APP_CONN_VPP:
586 0 : st = "STATE_APP_CONN_VPP";
587 0 : break;
588 :
589 0 : case STATE_APP_ENABLED:
590 0 : st = "STATE_APP_ENABLED";
591 0 : break;
592 :
593 0 : case STATE_APP_ATTACHED:
594 0 : st = "STATE_APP_ATTACHED";
595 0 : break;
596 :
597 0 : default:
598 0 : st = "UNKNOWN_APP_STATE";
599 0 : break;
600 : }
601 :
602 0 : return st;
603 : }
604 :
605 : static int
606 60 : vcl_bapi_wait_for_wrk_state_change (vcl_bapi_app_state_t app_state)
607 : {
608 60 : vcl_worker_t *wrk = vcl_worker_get_current ();
609 60 : f64 timeout = clib_time_now (&wrk->clib_time) + vcm->cfg.app_timeout;
610 :
611 621052 : while (clib_time_now (&wrk->clib_time) < timeout)
612 : {
613 621052 : if (wrk->bapi_app_state == app_state)
614 60 : return VPPCOM_OK;
615 620992 : if (wrk->bapi_app_state == STATE_APP_FAILED)
616 0 : return VPPCOM_ECONNABORTED;
617 : }
618 0 : VDBG (0, "timeout waiting for state %s, current state %d",
619 : vcl_bapi_app_state_str (app_state), wrk->bapi_app_state);
620 : vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, bapi_app_state);
621 :
622 0 : return VPPCOM_ETIMEDOUT;
623 : }
624 :
625 : static int
626 29 : vcl_bapi_session_enable (void)
627 : {
628 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
629 : int rv;
630 :
631 29 : if (wrk->bapi_app_state != STATE_APP_ENABLED)
632 : {
633 29 : vcl_bapi_send_session_enable_disable (1 /* is_enabled == TRUE */ );
634 29 : rv = vcl_bapi_wait_for_wrk_state_change (STATE_APP_ENABLED);
635 29 : if (PREDICT_FALSE (rv))
636 : {
637 0 : VDBG (0, "application session enable timed out! returning %d (%s)",
638 : rv, vppcom_retval_str (rv));
639 0 : return rv;
640 : }
641 : }
642 29 : return VPPCOM_OK;
643 : }
644 :
645 : static int
646 29 : vcl_bapi_init (void)
647 : {
648 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
649 : int rv;
650 :
651 29 : wrk->bapi_app_state = STATE_APP_START;
652 29 : vcl_bapi_init_error_string_table ();
653 29 : rv = vcl_bapi_connect_to_vpp ();
654 29 : if (rv)
655 : {
656 0 : VERR ("couldn't connect to VPP!");
657 0 : return rv;
658 : }
659 29 : VDBG (0, "sending session enable");
660 29 : rv = vcl_bapi_session_enable ();
661 29 : if (rv)
662 : {
663 0 : VERR ("vppcom_app_session_enable() failed!");
664 0 : return rv;
665 : }
666 :
667 29 : return 0;
668 : }
669 :
670 : int
671 29 : vcl_bapi_attach (void)
672 : {
673 : int rv;
674 :
675 : /* API hookup and connect to VPP */
676 29 : if ((rv = vcl_bapi_init ()))
677 0 : return rv;
678 :
679 29 : vcl_bapi_send_attach ();
680 29 : rv = vcl_bapi_wait_for_wrk_state_change (STATE_APP_ATTACHED);
681 29 : if (PREDICT_FALSE (rv))
682 : {
683 0 : VDBG (0, "application attach timed out! returning %d (%s)", rv,
684 : vppcom_retval_str (rv));
685 0 : return rv;
686 : }
687 :
688 29 : return 0;
689 : }
690 :
691 : int
692 0 : vcl_bapi_app_worker_add (void)
693 : {
694 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
695 :
696 0 : if (vcl_bapi_connect_to_vpp ())
697 0 : return -1;
698 :
699 0 : wrk->bapi_app_state = STATE_APP_ADDING_WORKER;
700 0 : vcl_bapi_send_app_worker_add_del (1 /* is_add */ );
701 0 : if (vcl_bapi_wait_for_wrk_state_change (STATE_APP_READY))
702 0 : return -1;
703 0 : return 0;
704 : }
705 :
706 : void
707 11 : vcl_bapi_app_worker_del (vcl_worker_t * wrk)
708 : {
709 : /* Notify vpp that the worker is going away */
710 11 : if (wrk->wrk_index == vcl_get_worker_index ())
711 11 : vcl_bapi_send_app_worker_add_del (0 /* is_add */ );
712 : else
713 0 : vcl_bapi_send_child_worker_del (wrk);
714 :
715 : /* Disconnect the binary api */
716 11 : if (vec_len (vcm->workers) == 1)
717 11 : vcl_bapi_disconnect_from_vpp ();
718 : else
719 0 : vl_client_send_disconnect (1 /* vpp should cleanup */ );
720 11 : }
721 :
722 : int
723 30 : vcl_bapi_recv_fds (vcl_worker_t * wrk, int *fds, int n_fds)
724 : {
725 : clib_error_t *err;
726 :
727 30 : if ((err = vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, fds, n_fds,
728 : 5)))
729 : {
730 0 : clib_error_report (err);
731 0 : return -1;
732 : }
733 :
734 30 : return 0;
735 : }
736 :
737 : int
738 2 : vcl_bapi_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
739 : {
740 2 : vcl_worker_t *wrk = vcl_worker_get_current ();
741 :
742 2 : if (ckpair->key_len == 0 || ckpair->key_len == ~0)
743 0 : return VPPCOM_EINVAL;
744 :
745 2 : vcl_bapi_send_app_add_cert_key_pair (ckpair);
746 2 : wrk->bapi_app_state = STATE_APP_ADDING_TLS_DATA;
747 2 : vcl_bapi_wait_for_wrk_state_change (STATE_APP_READY);
748 2 : if (wrk->bapi_app_state == STATE_APP_READY)
749 2 : return wrk->bapi_return;
750 0 : return VPPCOM_EFAULT;
751 : }
752 :
753 : int
754 0 : vcl_bapi_del_cert_key_pair (u32 ckpair_index)
755 : {
756 : /* Don't wait for reply */
757 0 : vcl_bapi_send_app_del_cert_key_pair (ckpair_index);
758 0 : return 0;
759 : }
760 :
761 : int
762 0 : vcl_bapi_worker_set (void)
763 : {
764 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
765 : int i;
766 :
767 : /* Find the first worker with the same pid */
768 0 : for (i = 0; i < vec_len (vcm->workers); i++)
769 : {
770 0 : if (i == wrk->wrk_index)
771 0 : continue;
772 0 : if (vcm->workers[i].current_pid == wrk->current_pid)
773 : {
774 0 : wrk->vl_input_queue = vcm->workers[i].vl_input_queue;
775 0 : wrk->api_client_handle = vcm->workers[i].api_client_handle;
776 0 : return 0;
777 : }
778 : }
779 0 : return -1;
780 : }
781 :
782 : /*
783 : * fd.io coding-style-patch-verification: ON
784 : *
785 : * Local Variables:
786 : * eval: (c-set-style "gnu")
787 : * End:
788 : */
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