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 : (vcm->cfg.app_original_dst ? APP_OPTIONS_FLAGS_GET_ORIGINAL_DST : 0);
365 29 : bmp->options[APP_OPTIONS_PROXY_TRANSPORT] =
366 58 : (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
367 29 : (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0));
368 29 : bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
369 29 : bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
370 29 : bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
371 29 : bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
372 29 : bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
373 29 : vcm->cfg.preallocated_fifo_pairs;
374 29 : bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size;
375 29 : bmp->options[APP_OPTIONS_TLS_ENGINE] = tls_engine;
376 29 : if (nsid_len)
377 : {
378 19 : vl_api_vec_to_api_string (vcm->cfg.namespace_id, &bmp->namespace_id);
379 19 : bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret;
380 : }
381 29 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & bmp);
382 29 : }
383 :
384 : void
385 0 : vcl_bapi_send_detach (void)
386 : {
387 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
388 : vl_api_application_detach_t *bmp;
389 0 : bmp = vl_msg_api_alloc (sizeof (*bmp));
390 0 : memset (bmp, 0, sizeof (*bmp));
391 :
392 0 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APPLICATION_DETACH);
393 0 : bmp->client_index = wrk->api_client_handle;
394 0 : bmp->context = htonl (0xfeedface);
395 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & bmp);
396 0 : }
397 :
398 : static void
399 11 : vcl_bapi_send_app_worker_add_del (u8 is_add)
400 : {
401 11 : vcl_worker_t *wrk = vcl_worker_get_current ();
402 : vl_api_app_worker_add_del_t *mp;
403 :
404 11 : mp = vl_msg_api_alloc (sizeof (*mp));
405 11 : memset (mp, 0, sizeof (*mp));
406 :
407 11 : mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_WORKER_ADD_DEL);
408 11 : mp->client_index = wrk->api_client_handle;
409 11 : mp->app_index = clib_host_to_net_u32 (vcm->app_index);
410 11 : mp->context = wrk->wrk_index;
411 11 : mp->is_add = is_add;
412 11 : if (!is_add)
413 11 : mp->wrk_index = clib_host_to_net_u32 (wrk->vpp_wrk_index);
414 :
415 11 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & mp);
416 11 : }
417 :
418 : static void
419 0 : vcl_bapi_send_child_worker_del (vcl_worker_t * child_wrk)
420 : {
421 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
422 : vl_api_app_worker_add_del_t *mp;
423 :
424 0 : mp = vl_msg_api_alloc (sizeof (*mp));
425 0 : memset (mp, 0, sizeof (*mp));
426 :
427 0 : mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_WORKER_ADD_DEL);
428 0 : mp->client_index = wrk->api_client_handle;
429 0 : mp->app_index = clib_host_to_net_u32 (vcm->app_index);
430 0 : mp->context = wrk->wrk_index;
431 0 : mp->is_add = 0;
432 0 : mp->wrk_index = clib_host_to_net_u32 (child_wrk->vpp_wrk_index);
433 :
434 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) & mp);
435 0 : }
436 :
437 : static void
438 2 : vcl_bapi_send_app_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
439 : {
440 2 : vcl_worker_t *wrk = vcl_worker_get_current ();
441 2 : u32 cert_len = ckpair->cert_len;
442 2 : u32 key_len = ckpair->key_len;
443 : vl_api_app_add_cert_key_pair_t *bmp;
444 :
445 2 : bmp = vl_msg_api_alloc (sizeof (*bmp) + cert_len + key_len);
446 2 : clib_memset (bmp, 0, sizeof (*bmp) + cert_len + key_len);
447 :
448 2 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_ADD_CERT_KEY_PAIR);
449 2 : bmp->client_index = wrk->api_client_handle;
450 2 : bmp->context = wrk->wrk_index;
451 2 : bmp->cert_len = clib_host_to_net_u16 (cert_len);
452 2 : bmp->certkey_len = clib_host_to_net_u16 (key_len + cert_len);
453 2 : clib_memcpy_fast (bmp->certkey, ckpair->cert, cert_len);
454 2 : clib_memcpy_fast (bmp->certkey + cert_len, ckpair->key, key_len);
455 :
456 2 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) &bmp);
457 2 : }
458 :
459 : static void
460 0 : vcl_bapi_send_app_del_cert_key_pair (u32 ckpair_index)
461 : {
462 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
463 : vl_api_app_del_cert_key_pair_t *bmp;
464 0 : bmp = vl_msg_api_alloc (sizeof (*bmp));
465 0 : clib_memset (bmp, 0, sizeof (*bmp));
466 :
467 0 : bmp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_APP_DEL_CERT_KEY_PAIR);
468 0 : bmp->client_index = wrk->api_client_handle;
469 0 : bmp->context = wrk->wrk_index;
470 0 : bmp->index = clib_host_to_net_u32 (ckpair_index);
471 0 : vl_msg_api_send_shmem (wrk->vl_input_queue, (u8 *) &bmp);
472 0 : }
473 :
474 : u32
475 0 : vcl_bapi_max_nsid_len (void)
476 : {
477 : vl_api_app_attach_t *mp;
478 0 : return (sizeof (mp->namespace_id) - 1);
479 : }
480 :
481 : static void
482 29 : vcl_bapi_init_error_string_table (void)
483 : {
484 29 : vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
485 :
486 : #define _(n, v, s) hash_set (vcm->error_string_by_error_number, -v, s);
487 29 : foreach_vnet_api_error;
488 : #undef _
489 :
490 29 : hash_set (vcm->error_string_by_error_number, 99, "Misc");
491 29 : }
492 :
493 : static void
494 29 : vcl_bapi_cleanup (void)
495 : {
496 29 : socket_client_main_t *scm = &socket_client_main;
497 29 : api_main_t *am = vlibapi_get_main ();
498 :
499 29 : am->my_client_index = ~0;
500 29 : am->my_registration = 0;
501 29 : am->vl_input_queue = 0;
502 29 : am->msg_index_by_name_and_crc = 0;
503 29 : scm->socket_fd = 0;
504 :
505 29 : vl_client_api_unmap ();
506 29 : }
507 :
508 : static int
509 29 : vcl_bapi_connect_to_vpp (void)
510 : {
511 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
512 29 : vppcom_cfg_t *vcl_cfg = &vcm->cfg;
513 29 : int rv = VPPCOM_OK;
514 : api_main_t *am;
515 : u8 *wrk_name;
516 :
517 29 : wrk_name = format (0, "%v-wrk-%u%c", vcm->app_name, wrk->wrk_index, 0);
518 :
519 : /* Make sure api is cleaned up in case this is a connect from a
520 : * forked worker */
521 29 : vcl_bapi_cleanup ();
522 :
523 29 : vlibapi_set_main (&wrk->bapi_api_ctx);
524 29 : vlibapi_set_memory_client_main (&wrk->bapi_mem_ctx);
525 :
526 29 : if (!vcl_cfg->vpp_bapi_socket_name)
527 : {
528 0 : rv = VPPCOM_EINVAL;
529 0 : goto error;
530 : }
531 :
532 29 : if (vl_socket_client_connect2 (&wrk->bapi_sock_ctx,
533 29 : (char *) vcl_cfg->vpp_bapi_socket_name,
534 : (char *) wrk_name,
535 : 0 /* default rx/tx buffer */ ))
536 : {
537 0 : VERR ("app (%s) socket connect failed!", wrk_name);
538 0 : rv = VPPCOM_ECONNREFUSED;
539 0 : goto error;
540 : }
541 :
542 29 : if (vl_socket_client_init_shm2 (&wrk->bapi_sock_ctx, 0,
543 : 1 /* want_pthread */ ))
544 : {
545 0 : VERR ("app (%s) init shm failed!", wrk_name);
546 0 : rv = VPPCOM_ECONNREFUSED;
547 0 : goto error;
548 : }
549 29 : vcl_bapi_hookup ();
550 :
551 29 : am = vlibapi_get_main ();
552 29 : wrk->vl_input_queue = am->shmem_hdr->vl_input_queue;
553 29 : wrk->api_client_handle = (u32) am->my_client_index;
554 :
555 29 : VDBG (0, "app (%s) is connected to VPP!", wrk_name);
556 : vcl_evt (VCL_EVT_INIT, vcm);
557 :
558 0 : error:
559 29 : vec_free (wrk_name);
560 29 : return rv;
561 : }
562 :
563 : void
564 29 : vcl_bapi_disconnect_from_vpp (void)
565 : {
566 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
567 29 : vppcom_cfg_t *vcl_cfg = &vcm->cfg;
568 :
569 29 : if (vcl_cfg->vpp_bapi_socket_name)
570 29 : vl_socket_client_disconnect2 (&wrk->bapi_sock_ctx);
571 : else
572 0 : vl_client_disconnect_from_vlib ();
573 29 : }
574 :
575 : static const char *
576 0 : vcl_bapi_app_state_str (vcl_bapi_app_state_t state)
577 : {
578 : char *st;
579 :
580 0 : switch (state)
581 : {
582 0 : case STATE_APP_START:
583 0 : st = "STATE_APP_START";
584 0 : break;
585 :
586 0 : case STATE_APP_CONN_VPP:
587 0 : st = "STATE_APP_CONN_VPP";
588 0 : break;
589 :
590 0 : case STATE_APP_ENABLED:
591 0 : st = "STATE_APP_ENABLED";
592 0 : break;
593 :
594 0 : case STATE_APP_ATTACHED:
595 0 : st = "STATE_APP_ATTACHED";
596 0 : break;
597 :
598 0 : default:
599 0 : st = "UNKNOWN_APP_STATE";
600 0 : break;
601 : }
602 :
603 0 : return st;
604 : }
605 :
606 : static int
607 60 : vcl_bapi_wait_for_wrk_state_change (vcl_bapi_app_state_t app_state)
608 : {
609 60 : vcl_worker_t *wrk = vcl_worker_get_current ();
610 60 : f64 timeout = clib_time_now (&wrk->clib_time) + vcm->cfg.app_timeout;
611 :
612 577073 : while (clib_time_now (&wrk->clib_time) < timeout)
613 : {
614 577073 : if (wrk->bapi_app_state == app_state)
615 60 : return VPPCOM_OK;
616 577013 : if (wrk->bapi_app_state == STATE_APP_FAILED)
617 0 : return VPPCOM_ECONNABORTED;
618 : }
619 0 : VDBG (0, "timeout waiting for state %s, current state %d",
620 : vcl_bapi_app_state_str (app_state), wrk->bapi_app_state);
621 : vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, bapi_app_state);
622 :
623 0 : return VPPCOM_ETIMEDOUT;
624 : }
625 :
626 : static int
627 29 : vcl_bapi_session_enable (void)
628 : {
629 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
630 : int rv;
631 :
632 29 : if (wrk->bapi_app_state != STATE_APP_ENABLED)
633 : {
634 29 : vcl_bapi_send_session_enable_disable (1 /* is_enabled == TRUE */ );
635 29 : rv = vcl_bapi_wait_for_wrk_state_change (STATE_APP_ENABLED);
636 29 : if (PREDICT_FALSE (rv))
637 : {
638 0 : VDBG (0, "application session enable timed out! returning %d (%s)",
639 : rv, vppcom_retval_str (rv));
640 0 : return rv;
641 : }
642 : }
643 29 : return VPPCOM_OK;
644 : }
645 :
646 : static int
647 29 : vcl_bapi_init (void)
648 : {
649 29 : vcl_worker_t *wrk = vcl_worker_get_current ();
650 : int rv;
651 :
652 29 : wrk->bapi_app_state = STATE_APP_START;
653 29 : vcl_bapi_init_error_string_table ();
654 29 : rv = vcl_bapi_connect_to_vpp ();
655 29 : if (rv)
656 : {
657 0 : VERR ("couldn't connect to VPP!");
658 0 : return rv;
659 : }
660 29 : VDBG (0, "sending session enable");
661 29 : rv = vcl_bapi_session_enable ();
662 29 : if (rv)
663 : {
664 0 : VERR ("vppcom_app_session_enable() failed!");
665 0 : return rv;
666 : }
667 :
668 29 : return 0;
669 : }
670 :
671 : int
672 29 : vcl_bapi_attach (void)
673 : {
674 : int rv;
675 :
676 : /* API hookup and connect to VPP */
677 29 : if ((rv = vcl_bapi_init ()))
678 0 : return rv;
679 :
680 29 : vcl_bapi_send_attach ();
681 29 : rv = vcl_bapi_wait_for_wrk_state_change (STATE_APP_ATTACHED);
682 29 : if (PREDICT_FALSE (rv))
683 : {
684 0 : VDBG (0, "application attach timed out! returning %d (%s)", rv,
685 : vppcom_retval_str (rv));
686 0 : return rv;
687 : }
688 :
689 29 : return 0;
690 : }
691 :
692 : int
693 0 : vcl_bapi_app_worker_add (void)
694 : {
695 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
696 :
697 0 : if (vcl_bapi_connect_to_vpp ())
698 0 : return -1;
699 :
700 0 : wrk->bapi_app_state = STATE_APP_ADDING_WORKER;
701 0 : vcl_bapi_send_app_worker_add_del (1 /* is_add */ );
702 0 : if (vcl_bapi_wait_for_wrk_state_change (STATE_APP_READY))
703 0 : return -1;
704 0 : return 0;
705 : }
706 :
707 : void
708 11 : vcl_bapi_app_worker_del (vcl_worker_t * wrk)
709 : {
710 : /* Notify vpp that the worker is going away */
711 11 : if (wrk->wrk_index == vcl_get_worker_index ())
712 11 : vcl_bapi_send_app_worker_add_del (0 /* is_add */ );
713 : else
714 0 : vcl_bapi_send_child_worker_del (wrk);
715 :
716 : /* Disconnect the binary api */
717 11 : if (vec_len (vcm->workers) == 1)
718 11 : vcl_bapi_disconnect_from_vpp ();
719 : else
720 0 : vl_client_send_disconnect (1 /* vpp should cleanup */ );
721 11 : }
722 :
723 : int
724 30 : vcl_bapi_recv_fds (vcl_worker_t * wrk, int *fds, int n_fds)
725 : {
726 : clib_error_t *err;
727 :
728 30 : if ((err = vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, fds, n_fds,
729 : 5)))
730 : {
731 0 : clib_error_report (err);
732 0 : return -1;
733 : }
734 :
735 30 : return 0;
736 : }
737 :
738 : int
739 2 : vcl_bapi_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
740 : {
741 2 : vcl_worker_t *wrk = vcl_worker_get_current ();
742 :
743 2 : if (ckpair->key_len == 0 || ckpair->key_len == ~0)
744 0 : return VPPCOM_EINVAL;
745 :
746 2 : vcl_bapi_send_app_add_cert_key_pair (ckpair);
747 2 : wrk->bapi_app_state = STATE_APP_ADDING_TLS_DATA;
748 2 : vcl_bapi_wait_for_wrk_state_change (STATE_APP_READY);
749 2 : if (wrk->bapi_app_state == STATE_APP_READY)
750 2 : return wrk->bapi_return;
751 0 : return VPPCOM_EFAULT;
752 : }
753 :
754 : int
755 0 : vcl_bapi_del_cert_key_pair (u32 ckpair_index)
756 : {
757 : /* Don't wait for reply */
758 0 : vcl_bapi_send_app_del_cert_key_pair (ckpair_index);
759 0 : return 0;
760 : }
761 :
762 : int
763 0 : vcl_bapi_worker_set (void)
764 : {
765 0 : vcl_worker_t *wrk = vcl_worker_get_current ();
766 : int i;
767 :
768 : /* Find the first worker with the same pid */
769 0 : for (i = 0; i < vec_len (vcm->workers); i++)
770 : {
771 0 : if (i == wrk->wrk_index)
772 0 : continue;
773 0 : if (vcm->workers[i].current_pid == wrk->current_pid)
774 : {
775 0 : wrk->vl_input_queue = vcm->workers[i].vl_input_queue;
776 0 : wrk->api_client_handle = vcm->workers[i].api_client_handle;
777 0 : return 0;
778 : }
779 : }
780 0 : return -1;
781 : }
782 :
783 : /*
784 : * fd.io coding-style-patch-verification: ON
785 : *
786 : * Local Variables:
787 : * eval: (c-set-style "gnu")
788 : * End:
789 : */
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