2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <svm/svm_fifo_segment.h>
20 #include <vlibmemory/api.h>
21 #include <vpp/api/vpe_msg_enum.h>
22 #include <vnet/session/application_interface.h>
23 #include <uri/vppcom.h>
24 #include <vlib/unix/unix.h>
25 #include <vppinfra/vec_bootstrap.h>
27 #define vl_typedefs /* define message structures */
28 #include <vpp/api/vpe_all_api_h.h>
31 /* declare message handlers for each api */
33 #define vl_endianfun /* define message structures */
34 #include <vpp/api/vpe_all_api_h.h>
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...)
40 #include <vpp/api/vpe_all_api_h.h>
44 /* Set VPPCOM_DEBUG 2 for connection debug, 3 for read/write debug output */
45 #define VPPCOM_DEBUG 1
47 #define VPPCOM_DEBUG 0
51 * VPPCOM Private definitions and functions.
73 volatile session_state_t state;
75 svm_fifo_t *server_rx_fifo;
76 svm_fifo_t *server_tx_fifo;
78 u64 vpp_session_handle;
79 unix_shared_memory_queue_t *event_queue;
81 /* Socket configuration state */
91 u64 client_queue_address;
95 typedef struct vppcom_cfg_t_
100 u32 add_segment_size;
101 u32 preallocated_fifo_pairs;
104 u32 event_queue_size;
105 u32 listen_queue_size;
111 typedef struct vppcom_main_t_
114 u32 *client_session_index_fifo;
115 volatile u32 bind_session_index;
119 /* vpe input queue */
120 unix_shared_memory_queue_t *vl_input_queue;
122 /* API client handle */
126 clib_spinlock_t sessions_lockp;
129 /* Hash table for disconnect processing */
130 uword *session_index_by_vpp_handles;
133 clib_bitmap_t *rd_bitmap;
134 clib_bitmap_t *wr_bitmap;
135 clib_bitmap_t *ex_bitmap;
137 /* Our event queue */
138 unix_shared_memory_queue_t *app_event_queue;
140 /* unique segment name counter */
141 u32 unique_segment_index;
145 /* For deadman timers */
146 clib_time_t clib_time;
148 /* State of the connection, shared between msg RX thread and main thread */
149 volatile app_state_t app_state;
153 /* VNET_API_ERROR_FOO -> "Foo" hash table */
154 uword *error_string_by_error_number;
157 vppcom_main_t vppcom_main = {.my_client_index = ~0 };
160 vppcom_app_state_str (app_state_t state)
166 case STATE_APP_START:
167 st = "STATE_APP_START";
170 case STATE_APP_CONN_VPP:
171 st = "STATE_APP_CONN_VPP";
174 case STATE_APP_ENABLED:
175 st = "STATE_APP_ENABLED";
178 case STATE_APP_ATTACHED:
179 st = "STATE_APP_ATTACHED";
183 st = "UNKNOWN_APP_STATE";
191 vppcom_session_state_str (session_state_t state)
202 st = "STATE_CONNECT";
213 case STATE_DISCONNECT:
214 st = "STATE_DISCONNECT";
222 st = "UNKNOWN_STATE";
230 * VPPCOM Utility Functions
233 vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
235 vppcom_main_t *vcm = &vppcom_main;
237 /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */
238 if (PREDICT_FALSE ((session_index == ~0) ||
239 pool_is_free_index (vcm->sessions, session_index)))
241 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
242 vcm->my_pid, session_index);
243 return VPPCOM_EBADFD;
245 *sess = pool_elt_at_index (vcm->sessions, session_index);
250 vppcom_connect_to_vpp (char *app_name)
252 api_main_t *am = &api_main;
253 vppcom_main_t *vcm = &vppcom_main;
255 if (VPPCOM_DEBUG > 0)
256 printf ("\nConnecting to VPP api...");
257 if (vl_client_connect_to_vlib ("/vpe-api", app_name, 32) < 0)
259 clib_warning ("[%d] connect to vpp (%s) failed!",
260 vcm->my_pid, app_name);
261 return VPPCOM_ECONNREFUSED;
264 vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
265 vcm->my_client_index = am->my_client_index;
266 if (VPPCOM_DEBUG > 0)
267 printf (" connected!\n");
269 vcm->app_state = STATE_APP_CONN_VPP;
274 format_api_error (u8 * s, va_list * args)
276 vppcom_main_t *vcm = &vppcom_main;
277 i32 error = va_arg (*args, u32);
280 p = hash_get (vcm->error_string_by_error_number, -error);
283 s = format (s, "%s (%d)", p[0], error);
285 s = format (s, "%d", error);
290 vppcom_init_error_string_table (void)
292 vppcom_main_t *vcm = &vppcom_main;
294 vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
296 #define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s);
297 foreach_vnet_api_error;
300 hash_set (vcm->error_string_by_error_number, 99, "Misc");
304 vppcom_wait_for_app_state_change (app_state_t app_state)
306 vppcom_main_t *vcm = &vppcom_main;
307 f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
309 while (clib_time_now (&vcm->clib_time) < timeout)
311 if (vcm->app_state == app_state)
314 if (VPPCOM_DEBUG > 0)
315 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
316 vppcom_app_state_str (app_state), app_state);
317 return VPPCOM_ETIMEDOUT;
321 vppcom_wait_for_session_state_change (u32 session_index,
322 session_state_t state,
325 vppcom_main_t *vcm = &vppcom_main;
326 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
327 session_t *volatile session;
332 clib_spinlock_lock (&vcm->sessions_lockp);
333 rv = vppcom_session_at_index (session_index, &session);
334 if (PREDICT_FALSE (rv))
336 clib_spinlock_unlock (&vcm->sessions_lockp);
339 if (session->state == state)
341 clib_spinlock_unlock (&vcm->sessions_lockp);
344 clib_spinlock_unlock (&vcm->sessions_lockp);
346 while (clib_time_now (&vcm->clib_time) < timeout);
348 if (VPPCOM_DEBUG > 0)
349 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
350 vppcom_session_state_str (state), state);
351 return VPPCOM_ETIMEDOUT;
355 vppcom_wait_for_client_session_index (f64 wait_for_time)
357 vppcom_main_t *vcm = &vppcom_main;
358 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
362 if (clib_fifo_elts (vcm->client_session_index_fifo))
365 while (clib_time_now (&vcm->clib_time) < timeout);
367 if (wait_for_time == 0)
368 return VPPCOM_EAGAIN;
370 if (VPPCOM_DEBUG > 0)
371 clib_warning ("[%d] timeout waiting for client_session_index",
373 return VPPCOM_ETIMEDOUT;
377 * VPP-API message functions
380 vppcom_send_session_enable_disable (u8 is_enable)
382 vppcom_main_t *vcm = &vppcom_main;
383 vl_api_session_enable_disable_t *bmp;
384 bmp = vl_msg_api_alloc (sizeof (*bmp));
385 memset (bmp, 0, sizeof (*bmp));
387 bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE);
388 bmp->client_index = vcm->my_client_index;
389 bmp->context = htonl (0xfeedface);
390 bmp->is_enable = is_enable;
391 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
395 vppcom_app_session_enable (void)
397 vppcom_main_t *vcm = &vppcom_main;
400 if (vcm->app_state != STATE_APP_ENABLED)
402 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
403 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
404 if (PREDICT_FALSE (rv))
406 if (VPPCOM_DEBUG > 0)
407 clib_warning ("[%d] Session enable timed out, rv = %s (%d)",
408 vcm->my_pid, vppcom_retval_str (rv), rv);
416 vl_api_session_enable_disable_reply_t_handler
417 (vl_api_session_enable_disable_reply_t * mp)
419 vppcom_main_t *vcm = &vppcom_main;
423 clib_warning ("[%d] session_enable_disable failed: %U", vcm->my_pid,
424 format_api_error, ntohl (mp->retval));
427 vcm->app_state = STATE_APP_ENABLED;
431 vppcom_app_send_attach (void)
433 vppcom_main_t *vcm = &vppcom_main;
434 vl_api_application_attach_t *bmp;
435 bmp = vl_msg_api_alloc (sizeof (*bmp));
436 memset (bmp, 0, sizeof (*bmp));
438 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
439 bmp->client_index = vcm->my_client_index;
440 bmp->context = htonl (0xfeedface);
441 bmp->options[APP_OPTIONS_FLAGS] =
442 APP_OPTIONS_FLAGS_USE_FIFO | APP_OPTIONS_FLAGS_ADD_SEGMENT;
443 bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
444 bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
445 bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
446 bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
447 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
451 vppcom_app_attach (void)
453 vppcom_main_t *vcm = &vppcom_main;
456 vppcom_app_send_attach ();
457 rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
458 if (PREDICT_FALSE (rv))
460 if (VPPCOM_DEBUG > 0)
461 clib_warning ("[%d] application attach timed out, rv = %s (%d)",
462 vcm->my_pid, vppcom_retval_str (rv), rv);
469 vppcom_app_detach (void)
471 vppcom_main_t *vcm = &vppcom_main;
472 vl_api_application_detach_t *bmp;
473 bmp = vl_msg_api_alloc (sizeof (*bmp));
474 memset (bmp, 0, sizeof (*bmp));
476 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
477 bmp->client_index = vcm->my_client_index;
478 bmp->context = htonl (0xfeedface);
479 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
483 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
486 vppcom_main_t *vcm = &vppcom_main;
487 static svm_fifo_segment_create_args_t _a;
488 svm_fifo_segment_create_args_t *a = &_a;
491 memset (a, 0, sizeof (*a));
494 clib_warning ("[%d] attach failed: %U", vcm->my_pid,
495 format_api_error, ntohl (mp->retval));
499 if (mp->segment_name_length == 0)
501 clib_warning ("[%d] segment_name_length zero", vcm->my_pid);
505 a->segment_name = (char *) mp->segment_name;
506 a->segment_size = mp->segment_size;
508 ASSERT (mp->app_event_queue_address);
510 /* Attach to the segment vpp created */
511 rv = svm_fifo_segment_attach (a);
512 vec_reset_length (a->new_segment_indices);
513 if (PREDICT_FALSE (rv))
515 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", vcm->my_pid,
520 vcm->app_event_queue =
521 uword_to_pointer (mp->app_event_queue_address,
522 unix_shared_memory_queue_t *);
524 vcm->app_state = STATE_APP_ATTACHED;
528 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
531 vppcom_main_t *vcm = &vppcom_main;
534 clib_warning ("[%d] detach failed: %U", vcm->my_pid, format_api_error,
537 vcm->app_state = STATE_APP_ENABLED;
541 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
544 vppcom_main_t *vcm = &vppcom_main;
547 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
550 session_t *session = 0;
552 clib_spinlock_lock (&vcm->sessions_lockp);
553 rv = vppcom_session_at_index (p[0], &session);
554 if (PREDICT_FALSE (rv))
556 if (VPPCOM_DEBUG > 1)
557 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
560 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
561 session->state = STATE_DISCONNECT;
562 clib_spinlock_unlock (&vcm->sessions_lockp);
566 if (VPPCOM_DEBUG > 1)
567 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
572 clib_warning ("[%d] disconnect_session failed: %U", vcm->my_pid,
573 format_api_error, ntohl (mp->retval));
577 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
579 vppcom_main_t *vcm = &vppcom_main;
580 static svm_fifo_segment_create_args_t _a;
581 svm_fifo_segment_create_args_t *a = &_a;
584 memset (a, 0, sizeof (*a));
585 a->segment_name = (char *) mp->segment_name;
586 a->segment_size = mp->segment_size;
587 /* Attach to the segment vpp created */
588 rv = svm_fifo_segment_attach (a);
589 vec_reset_length (a->new_segment_indices);
590 if (PREDICT_FALSE (rv))
592 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
593 vcm->my_pid, mp->segment_name);
596 if (VPPCOM_DEBUG > 1)
597 clib_warning ("[%d] mapped new segment '%s' size %d", vcm->my_pid,
598 mp->segment_name, mp->segment_size);
602 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
604 vppcom_main_t *vcm = &vppcom_main;
605 session_t *session = 0;
606 vl_api_disconnect_session_reply_t *rmp;
610 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
614 clib_spinlock_lock (&vcm->sessions_lockp);
615 rval = vppcom_session_at_index (p[0], &session);
616 if (PREDICT_FALSE (rval))
618 if (VPPCOM_DEBUG > 1)
619 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
623 pool_put (vcm->sessions, session);
624 clib_spinlock_unlock (&vcm->sessions_lockp);
625 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
629 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
634 rmp = vl_msg_api_alloc (sizeof (*rmp));
635 memset (rmp, 0, sizeof (*rmp));
637 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
638 rmp->retval = htonl (rv);
639 rmp->handle = mp->handle;
640 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
644 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
646 vppcom_main_t *vcm = &vppcom_main;
647 session_t *session = 0;
648 vl_api_reset_session_reply_t *rmp;
652 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
656 clib_spinlock_lock (&vcm->sessions_lockp);
657 rval = vppcom_session_at_index (p[0], &session);
658 if (PREDICT_FALSE (rval))
660 if (VPPCOM_DEBUG > 1)
661 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
665 pool_put (vcm->sessions, session);
666 clib_spinlock_unlock (&vcm->sessions_lockp);
667 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
671 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
676 rmp = vl_msg_api_alloc (sizeof (*rmp));
677 memset (rmp, 0, sizeof (*rmp));
678 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
679 rmp->retval = htonl (rv);
680 rmp->handle = mp->handle;
681 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
685 vl_api_connect_sock_reply_t_handler (vl_api_connect_sock_reply_t * mp)
687 vppcom_main_t *vcm = &vppcom_main;
690 svm_fifo_t *rx_fifo, *tx_fifo;
696 clib_warning ("[%d] connect failed: %U", vcm->my_pid, format_api_error,
701 session_index = ntohl (mp->app_connect);
702 if (VPPCOM_DEBUG > 1)
703 clib_warning ("[%d] app_connect = %d 0x%08x", vcm->my_pid,
704 session_index, session_index);
706 clib_spinlock_lock (&vcm->sessions_lockp);
707 if (pool_is_free_index (vcm->sessions, session_index))
709 clib_spinlock_unlock (&vcm->sessions_lockp);
710 if (VPPCOM_DEBUG > 1)
711 clib_warning ("[%d] invalid session, sid %d is closed!",
712 vcm->my_pid, session_index);
716 /* We've been redirected */
717 if (mp->segment_name_length > 0)
719 static svm_fifo_segment_create_args_t _a;
720 svm_fifo_segment_create_args_t *a = &_a;
723 memset (a, 0, sizeof (*a));
724 a->segment_name = (char *) mp->segment_name;
725 if (VPPCOM_DEBUG > 1)
726 clib_warning ("[%d] cut-thru segment: %s", vcm->my_pid,
728 rv = svm_fifo_segment_attach (a);
729 vec_reset_length (a->new_segment_indices);
730 if (PREDICT_FALSE (rv))
732 clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
733 vcm->my_pid, a->segment_name);
741 if (VPPCOM_DEBUG > 1)
742 clib_warning ("[%d] client sid %d", vcm->my_pid, session_index);
744 session = pool_elt_at_index (vcm->sessions, session_index);
745 session->is_cut_thru = is_cut_thru;
746 session->event_queue = uword_to_pointer (mp->vpp_event_queue_address,
747 unix_shared_memory_queue_t *);
749 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
750 rx_fifo->client_session_index = session_index;
751 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
752 tx_fifo->client_session_index = session_index;
754 session->server_rx_fifo = rx_fifo;
755 session->server_tx_fifo = tx_fifo;
756 session->vpp_session_handle = mp->handle;
757 session->state = STATE_CONNECT;
759 /* Add it to lookup table */
760 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
761 clib_spinlock_unlock (&vcm->sessions_lockp);
765 vppcom_send_connect_sock (session_t * session, u32 session_index)
767 vppcom_main_t *vcm = &vppcom_main;
768 vl_api_connect_sock_t *cmp;
770 /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
771 session->is_server = 0;
772 cmp = vl_msg_api_alloc (sizeof (*cmp));
773 memset (cmp, 0, sizeof (*cmp));
774 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
775 cmp->client_index = vcm->my_client_index;
776 cmp->context = htonl (0xfeedface);
777 cmp->app_connect = session_index;
779 if (VPPCOM_DEBUG > 1)
780 clib_warning ("[%d] session_index = %d 0x%08x, app_connect = %d 0x%08x",
781 vcm->my_pid, session_index, session_index,
782 cmp->app_connect, cmp->app_connect);
784 cmp->vrf = session->vrf;
785 cmp->is_ip4 = session->is_ip4;
786 clib_memcpy (cmp->ip, session->ip, sizeof (cmp->ip));
787 cmp->port = session->port;
788 cmp->proto = session->proto;
789 clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
790 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
794 vppcom_send_disconnect (u32 session_index)
796 vppcom_main_t *vcm = &vppcom_main;
797 vl_api_disconnect_session_t *dmp;
798 session_t *session = 0;
801 clib_spinlock_lock (&vcm->sessions_lockp);
802 rv = vppcom_session_at_index (session_index, &session);
803 if (PREDICT_FALSE (rv))
805 clib_spinlock_unlock (&vcm->sessions_lockp);
806 if (VPPCOM_DEBUG > 1)
807 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
808 vcm->my_pid, session_index);
812 dmp = vl_msg_api_alloc (sizeof (*dmp));
813 memset (dmp, 0, sizeof (*dmp));
814 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
815 dmp->client_index = vcm->my_client_index;
816 dmp->handle = session->vpp_session_handle;
817 clib_spinlock_unlock (&vcm->sessions_lockp);
818 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
823 vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
825 vppcom_main_t *vcm = &vppcom_main;
826 session_t *session = 0;
830 clib_warning ("[%d] bind failed: %U", vcm->my_pid, format_api_error,
833 ASSERT (vcm->bind_session_index != ~0);
835 clib_spinlock_lock (&vcm->sessions_lockp);
836 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
839 session->vpp_session_handle = mp->handle;
840 hash_set (vcm->session_index_by_vpp_handles, mp->handle,
841 vcm->bind_session_index);
842 session->state = mp->retval ? STATE_FAILED : STATE_LISTEN;
843 vcm->bind_session_index = ~0;
845 clib_spinlock_unlock (&vcm->sessions_lockp);
849 vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
851 vppcom_main_t *vcm = &vppcom_main;
852 session_t *session = 0;
855 clib_spinlock_lock (&vcm->sessions_lockp);
856 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
857 if (PREDICT_FALSE (rv))
859 if (VPPCOM_DEBUG > 1)
860 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
861 vcm->my_pid, vcm->bind_session_index);
865 clib_warning ("[%d] unbind failed: %U", vcm->my_pid, format_api_error,
868 vcm->bind_session_index = ~0;
869 session->state = STATE_START;
870 clib_spinlock_unlock (&vcm->sessions_lockp);
874 format_ip4_address (u8 * s, va_list * args)
876 u8 *a = va_arg (*args, u8 *);
877 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
881 format_ip6_address (u8 * s, va_list * args)
883 ip6_address_t *a = va_arg (*args, ip6_address_t *);
884 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
886 i_max_n_zero = ARRAY_LEN (a->as_u16);
888 i_first_zero = i_max_n_zero;
890 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
892 u32 is_zero = a->as_u16[i] == 0;
893 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
899 if ((!is_zero && n_zeros > max_n_zeros)
900 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
902 i_max_n_zero = i_first_zero;
903 max_n_zeros = n_zeros;
904 i_first_zero = ARRAY_LEN (a->as_u16);
909 last_double_colon = 0;
910 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
912 if (i == i_max_n_zero && max_n_zeros > 1)
914 s = format (s, "::");
915 i += max_n_zeros - 1;
916 last_double_colon = 1;
920 s = format (s, "%s%x",
921 (last_double_colon || i == 0) ? "" : ":",
922 clib_net_to_host_u16 (a->as_u16[i]));
923 last_double_colon = 0;
930 /* Format an IP46 address. */
932 format_ip46_address (u8 * s, va_list * args)
934 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
935 ip46_type_t type = va_arg (*args, ip46_type_t);
941 is_ip4 = ip46_address_is_ip4 (ip46);
952 format (s, "%U", format_ip4_address, &ip46->ip4) :
953 format (s, "%U", format_ip6_address, &ip46->ip6);
957 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
959 vppcom_main_t *vcm = &vppcom_main;
960 vl_api_accept_session_reply_t *rmp;
961 svm_fifo_t *rx_fifo, *tx_fifo;
966 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
968 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
969 rv = VNET_API_ERROR_QUEUE_FULL;
973 if (VPPCOM_DEBUG > 1)
975 u8 *ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
976 clib_warning ("[%d] accepted session from: %s:%d", vcm->my_pid, ip_str,
977 clib_net_to_host_u16 (mp->port));
981 clib_spinlock_lock (&vcm->sessions_lockp);
982 /* Allocate local session and set it up */
983 pool_get (vcm->sessions, session);
984 memset (session, 0, sizeof (*session));
985 session_index = session - vcm->sessions;
987 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
988 rx_fifo->client_session_index = session_index;
989 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
990 tx_fifo->client_session_index = session_index;
992 session->server_rx_fifo = rx_fifo;
993 session->server_tx_fifo = tx_fifo;
994 session->event_queue = uword_to_pointer (mp->vpp_event_queue_address,
995 unix_shared_memory_queue_t *);
996 session->state = STATE_ACCEPT;
997 session->is_cut_thru = 0;
998 session->port = ntohs (mp->port);
999 session->is_ip4 = mp->is_ip4;
1000 clib_memcpy (session->ip, mp->ip, sizeof (session->ip));
1001 clib_spinlock_unlock (&vcm->sessions_lockp);
1003 /* Add it to lookup table */
1004 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
1006 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1009 * Send accept reply to vpp
1012 rmp = vl_msg_api_alloc (sizeof (*rmp));
1013 memset (rmp, 0, sizeof (*rmp));
1014 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1015 rmp->retval = htonl (rv);
1016 rmp->handle = mp->handle;
1017 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1021 * Acting as server for redirected connect requests
1024 vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
1026 static svm_fifo_segment_create_args_t _a;
1027 svm_fifo_segment_create_args_t *a = &_a;
1028 vppcom_main_t *vcm = &vppcom_main;
1030 svm_fifo_segment_private_t *seg;
1031 unix_shared_memory_queue_t *client_q;
1032 vl_api_connect_sock_reply_t *rmp;
1033 session_t *session = 0;
1035 svm_fifo_t *rx_fifo;
1036 svm_fifo_t *tx_fifo;
1037 unix_shared_memory_queue_t *event_q = 0;
1039 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1041 if (VPPCOM_DEBUG > 1)
1042 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
1043 rv = VNET_API_ERROR_QUEUE_FULL;
1047 /* Create the segment */
1048 memset (a, 0, sizeof (*a));
1049 a->segment_name = (char *) format ((u8 *) a->segment_name, "%d:segment%d%c",
1050 vcm->my_pid, vcm->unique_segment_index++,
1052 a->segment_size = vcm->cfg.segment_size;
1053 a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
1054 a->rx_fifo_size = vcm->cfg.rx_fifo_size;
1055 a->tx_fifo_size = vcm->cfg.tx_fifo_size;
1057 rv = svm_fifo_segment_create (a);
1058 if (PREDICT_FALSE (rv))
1060 if (VPPCOM_DEBUG > 1)
1061 clib_warning ("[%d] svm_fifo_segment_create ('%s') failed",
1062 vcm->my_pid, a->segment_name);
1063 vec_reset_length (a->new_segment_indices);
1064 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1068 if (VPPCOM_DEBUG > 1)
1069 clib_warning ("[%d] created segment '%s'", vcm->my_pid, a->segment_name);
1071 clib_spinlock_lock (&vcm->sessions_lockp);
1072 pool_get (vcm->sessions, session);
1073 memset (session, 0, sizeof (*session));
1074 session_index = session - vcm->sessions;
1076 session->sm_seg_index = a->new_segment_indices[0];
1077 vec_reset_length (a->new_segment_indices);
1079 seg = svm_fifo_segment_get_segment (session->sm_seg_index);
1080 rx_fifo = session->server_rx_fifo =
1081 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
1082 FIFO_SEGMENT_RX_FREELIST);
1083 if (PREDICT_FALSE (!session->server_rx_fifo))
1085 svm_fifo_segment_delete (seg);
1086 clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)",
1087 vcm->my_pid, vcm->cfg.rx_fifo_size,
1088 vcm->cfg.rx_fifo_size);
1089 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1090 clib_spinlock_unlock (&vcm->sessions_lockp);
1094 tx_fifo = session->server_tx_fifo =
1095 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
1096 FIFO_SEGMENT_TX_FREELIST);
1097 if (PREDICT_FALSE (!session->server_tx_fifo))
1099 svm_fifo_segment_delete (seg);
1100 if (VPPCOM_DEBUG > 1)
1101 clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)",
1102 vcm->my_pid, vcm->cfg.tx_fifo_size,
1103 vcm->cfg.tx_fifo_size);
1104 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1105 clib_spinlock_unlock (&vcm->sessions_lockp);
1109 session->server_rx_fifo->master_session_index = session_index;
1110 session->server_tx_fifo->master_session_index = session_index;
1111 session->client_queue_address = mp->client_queue_address;
1112 session->is_cut_thru = 1;
1113 session->is_server = 1;
1114 session->is_ip4 = mp->is_ip4;
1115 session->port = mp->port;
1118 ssvm_shared_header_t *sh = seg->ssvm.sh;
1120 ssvm_lock_non_recursive (sh, 1);
1121 oldheap = ssvm_push_heap (sh);
1122 event_q = session->event_queue =
1123 unix_shared_memory_queue_init (vcm->cfg.event_queue_size,
1124 sizeof (session_fifo_event_t),
1125 vcm->my_pid, 0 /* signal not sent */ );
1126 ssvm_pop_heap (oldheap);
1127 ssvm_unlock_non_recursive (sh);
1129 clib_memcpy (session->ip, mp->ip, sizeof (session->ip));
1131 session->state = STATE_ACCEPT;
1132 if (VPPCOM_DEBUG > 1)
1133 clib_warning ("[%d] Connected cut-thru to client: sid %d",
1134 vcm->my_pid, session_index);
1135 clib_spinlock_unlock (&vcm->sessions_lockp);
1136 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1139 rmp = vl_msg_api_alloc (sizeof (*rmp));
1140 memset (rmp, 0, sizeof (*rmp));
1142 rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK_REPLY);
1143 rmp->context = mp->context;
1144 rmp->app_connect = htonl (mp->app_connect);
1145 rmp->retval = htonl (rv);
1146 rmp->segment_name_length = vec_len (a->segment_name);
1147 clib_memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name));
1148 vec_reset_length (a->segment_name);
1152 rmp->vpp_event_queue_address = pointer_to_uword (event_q);
1153 rmp->server_rx_fifo = pointer_to_uword (rx_fifo);
1154 rmp->server_tx_fifo = pointer_to_uword (tx_fifo);
1157 uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *);
1160 vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
1164 vppcom_send_bind_sock (session_t * session)
1166 vppcom_main_t *vcm = &vppcom_main;
1167 vl_api_bind_sock_t *bmp;
1169 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1170 session->is_server = 1;
1171 bmp = vl_msg_api_alloc (sizeof (*bmp));
1172 memset (bmp, 0, sizeof (*bmp));
1174 bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
1175 bmp->client_index = vcm->my_client_index;
1176 bmp->context = htonl (0xfeedface);
1177 bmp->vrf = session->vrf;
1178 bmp->is_ip4 = session->is_ip4;
1179 clib_memcpy (bmp->ip, session->ip, sizeof (bmp->ip));
1180 bmp->port = session->port;
1181 bmp->proto = session->proto;
1182 clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
1183 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
1187 vppcom_send_unbind_sock (u32 session_index)
1189 vppcom_main_t *vcm = &vppcom_main;
1190 vl_api_unbind_sock_t *ump;
1191 session_t *session = 0;
1194 clib_spinlock_lock (&vcm->sessions_lockp);
1195 rv = vppcom_session_at_index (session_index, &session);
1196 if (PREDICT_FALSE (rv))
1198 clib_spinlock_unlock (&vcm->sessions_lockp);
1199 if (VPPCOM_DEBUG > 0)
1200 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1201 vcm->my_pid, session_index);
1205 ump = vl_msg_api_alloc (sizeof (*ump));
1206 memset (ump, 0, sizeof (*ump));
1208 ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
1209 ump->client_index = vcm->my_client_index;
1210 ump->handle = session->vpp_session_handle;
1211 clib_spinlock_unlock (&vcm->sessions_lockp);
1212 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
1216 vppcom_session_unbind_cut_thru (session_t * session)
1218 svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
1219 svm_fifo_segment_private_t *seg;
1222 seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
1223 svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
1224 FIFO_SEGMENT_RX_FREELIST);
1225 svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
1226 FIFO_SEGMENT_TX_FREELIST);
1227 svm_fifo_segment_delete (seg);
1233 vppcom_session_unbind (u32 session_index)
1235 vppcom_main_t *vcm = &vppcom_main;
1238 clib_spinlock_lock (&vcm->sessions_lockp);
1239 if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index)))
1241 clib_spinlock_unlock (&vcm->sessions_lockp);
1242 if (VPPCOM_DEBUG > 1)
1243 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1244 vcm->my_pid, session_index);
1245 return VPPCOM_EBADFD;
1247 clib_spinlock_unlock (&vcm->sessions_lockp);
1249 vcm->bind_session_index = session_index;
1250 vppcom_send_unbind_sock (session_index);
1251 rv = vppcom_wait_for_session_state_change (session_index, STATE_START,
1252 vcm->cfg.session_timeout);
1253 if (PREDICT_FALSE (rv))
1255 vcm->bind_session_index = ~0;
1256 if (VPPCOM_DEBUG > 0)
1257 clib_warning ("[%d] server unbind timed out, rv = %s (%d)",
1258 vcm->my_pid, vppcom_retval_str (rv), rv);
1265 vppcom_session_disconnect (u32 session_index)
1267 vppcom_main_t *vcm = &vppcom_main;
1270 rv = vppcom_send_disconnect (session_index);
1271 if (PREDICT_FALSE (rv))
1274 rv = vppcom_wait_for_session_state_change (session_index, STATE_DISCONNECT,
1275 vcm->cfg.session_timeout);
1276 if (PREDICT_FALSE (rv))
1278 if (VPPCOM_DEBUG > 0)
1279 clib_warning ("[%d] client disconnect timed out, rv = %s (%d)",
1280 vcm->my_pid, vppcom_retval_str (rv), rv);
1284 clib_spinlock_lock (&vcm->sessions_lockp);
1285 pool_put_index (vcm->sessions, session_index);
1286 clib_spinlock_unlock (&vcm->sessions_lockp);
1290 #define foreach_sock_msg \
1291 _(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
1292 _(BIND_SOCK_REPLY, bind_sock_reply) \
1293 _(UNBIND_SOCK_REPLY, unbind_sock_reply) \
1294 _(ACCEPT_SESSION, accept_session) \
1295 _(CONNECT_SOCK, connect_sock) \
1296 _(CONNECT_SOCK_REPLY, connect_sock_reply) \
1297 _(DISCONNECT_SESSION, disconnect_session) \
1298 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1299 _(RESET_SESSION, reset_session) \
1300 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1301 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1302 _(MAP_ANOTHER_SEGMENT, map_another_segment)
1305 vppcom_api_hookup (void)
1308 vl_msg_api_set_handlers(VL_API_##N, #n, \
1309 vl_api_##n##_t_handler, \
1311 vl_api_##n##_t_endian, \
1312 vl_api_##n##_t_print, \
1313 sizeof(vl_api_##n##_t), 1);
1319 vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
1323 vcl_cfg->heapsize = (256ULL << 20);
1324 vcl_cfg->segment_baseva = 0x200000000ULL;
1325 vcl_cfg->segment_size = (256 << 20);
1326 vcl_cfg->add_segment_size = (128 << 20);
1327 vcl_cfg->preallocated_fifo_pairs = 8;
1328 vcl_cfg->rx_fifo_size = (1 << 20);
1329 vcl_cfg->tx_fifo_size = (1 << 20);
1330 vcl_cfg->event_queue_size = 2048;
1331 vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
1332 vcl_cfg->app_timeout = 10 * 60.0;
1333 vcl_cfg->session_timeout = 10 * 60.0;
1334 vcl_cfg->accept_timeout = 60.0;
1338 vppcom_cfg_heapsize (char *conf_fname)
1340 vppcom_main_t *vcm = &vppcom_main;
1341 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1352 fp = fopen (conf_fname, "r");
1355 if (VPPCOM_DEBUG > 0)
1356 fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
1359 argv = calloc (1, sizeof (char *));
1365 if (fgets (inbuf, 4096, fp) == 0)
1367 p = strtok (inbuf, " \t\n");
1373 char **tmp = realloc (argv, argc * sizeof (char *));
1380 arg = strndup (p, 1024);
1386 argv[argc - 1] = arg;
1387 p = strtok (NULL, " \t\n");
1393 char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
1400 * Look for and parse the "heapsize" config parameter.
1401 * Manual since none of the clib infra has been bootstrapped yet.
1403 * Format: heapsize <nn>[mM][gG]
1406 for (i = 1; i < (argc - 1); i++)
1408 if (!strncmp (argv[i], "heapsize", 8))
1410 sizep = (u8 *) argv[i + 1];
1412 while (*sizep >= '0' && *sizep <= '9')
1415 size += *sizep++ - '0';
1419 if (VPPCOM_DEBUG > 0)
1420 clib_warning ("[%d] parse error '%s %s', "
1421 "using default heapsize %lld (0x%llx)",
1422 vcm->my_pid, argv[i], argv[i + 1],
1423 vcl_cfg->heapsize, vcl_cfg->heapsize);
1427 if (*sizep == 'g' || *sizep == 'G')
1428 vcl_cfg->heapsize = size << 30;
1429 else if (*sizep == 'm' || *sizep == 'M')
1430 vcl_cfg->heapsize = size << 20;
1433 if (VPPCOM_DEBUG > 0)
1434 clib_warning ("[%d] parse error '%s %s', "
1435 "using default heapsize %lld (0x%llx)",
1436 vcm->my_pid, argv[i], argv[i + 1],
1437 vcl_cfg->heapsize, vcl_cfg->heapsize);
1444 if (!clib_mem_init (0, vcl_cfg->heapsize))
1445 clib_warning ("[%d] vppcom heap allocation failure!", vcm->my_pid);
1446 else if (VPPCOM_DEBUG > 0)
1447 clib_warning ("[%d] allocated vppcom heapsize %lld (0x%llx)",
1448 vcm->my_pid, vcl_cfg->heapsize, vcl_cfg->heapsize);
1452 vppcom_cfg_read (char *conf_fname)
1454 vppcom_main_t *vcm = &vppcom_main;
1455 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1457 unformat_input_t _input, *input = &_input;
1458 unformat_input_t _line_input, *line_input = &_line_input;
1459 u8 vc_cfg_input = 0;
1464 fd = open (conf_fname, O_RDONLY);
1467 if (VPPCOM_DEBUG > 0)
1468 clib_warning ("[%d] open configuration file '%s' failed!",
1469 vcm->my_pid, conf_fname);
1473 if (fstat (fd, &s) < 0)
1475 if (VPPCOM_DEBUG > 0)
1476 clib_warning ("[%d] failed to stat `%s'", vcm->my_pid, conf_fname);
1480 if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
1482 if (VPPCOM_DEBUG > 0)
1483 clib_warning ("[%d] not a regular file `%s'", vcm->my_pid,
1488 unformat_init_unix_file (input, fd);
1490 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1492 unformat_user (input, unformat_line_input, line_input);
1493 unformat_skip_white_space (line_input);
1495 if (unformat (line_input, "vppcom {"))
1503 if (unformat (line_input, "heapsize %s", &chroot_path))
1505 vec_terminate_c_string (chroot_path);
1506 if (VPPCOM_DEBUG > 0)
1507 clib_warning ("[%d] configured heapsize %s, "
1508 "actual heapsize %lld (0x%llx)",
1509 vcm->my_pid, chroot_path, vcl_cfg->heapsize,
1511 vec_free (chroot_path);
1513 else if (unformat (line_input, "api-prefix %s", &chroot_path))
1515 vec_terminate_c_string (chroot_path);
1516 vl_set_memory_root_path ((char *) chroot_path);
1517 if (VPPCOM_DEBUG > 0)
1518 clib_warning ("[%d] configured api-prefix %s",
1519 vcm->my_pid, chroot_path);
1520 chroot_path = 0; /* Don't vec_free() it! */
1522 else if (unformat (line_input, "uid %d", &uid))
1524 vl_set_memory_uid (uid);
1525 if (VPPCOM_DEBUG > 0)
1526 clib_warning ("[%d] configured uid %d", vcm->my_pid, uid);
1528 else if (unformat (line_input, "gid %d", &gid))
1530 vl_set_memory_gid (gid);
1531 if (VPPCOM_DEBUG > 0)
1532 clib_warning ("[%d] configured gid %d", vcm->my_pid, gid);
1534 else if (unformat (line_input, "segment-baseva 0x%llx",
1535 &vcl_cfg->segment_baseva))
1537 if (VPPCOM_DEBUG > 0)
1538 clib_warning ("[%d] configured segment_baseva 0x%llx",
1539 vcm->my_pid, vcl_cfg->segment_baseva);
1541 else if (unformat (line_input, "segment-size 0x%lx",
1542 &vcl_cfg->segment_size))
1544 if (VPPCOM_DEBUG > 0)
1545 clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
1546 vcm->my_pid, vcl_cfg->segment_size,
1547 vcl_cfg->segment_size);
1549 else if (unformat (line_input, "segment-size %ld",
1550 &vcl_cfg->segment_size))
1552 if (VPPCOM_DEBUG > 0)
1553 clib_warning ("[%d] configured segment_size %ld (0x%lx)",
1554 vcm->my_pid, vcl_cfg->segment_size,
1555 vcl_cfg->segment_size);
1557 else if (unformat (line_input, "add-segment-size 0x%lx",
1558 &vcl_cfg->add_segment_size))
1560 if (VPPCOM_DEBUG > 0)
1562 ("[%d] configured add_segment_size 0x%lx (%ld)",
1563 vcm->my_pid, vcl_cfg->add_segment_size,
1564 vcl_cfg->add_segment_size);
1566 else if (unformat (line_input, "add-segment-size %ld",
1567 &vcl_cfg->add_segment_size))
1569 if (VPPCOM_DEBUG > 0)
1571 ("[%d] configured add_segment_size %ld (0x%lx)",
1572 vcm->my_pid, vcl_cfg->add_segment_size,
1573 vcl_cfg->add_segment_size);
1575 else if (unformat (line_input, "preallocated-fifo-pairs %d",
1576 &vcl_cfg->preallocated_fifo_pairs))
1578 if (VPPCOM_DEBUG > 0)
1579 clib_warning ("[%d] configured preallocated_fifo_pairs "
1580 "%d (0x%x)", vcm->my_pid,
1581 vcl_cfg->preallocated_fifo_pairs,
1582 vcl_cfg->preallocated_fifo_pairs);
1584 else if (unformat (line_input, "rx-fifo-size 0x%lx",
1585 &vcl_cfg->rx_fifo_size))
1587 if (VPPCOM_DEBUG > 0)
1588 clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
1589 vcm->my_pid, vcl_cfg->rx_fifo_size,
1590 vcl_cfg->rx_fifo_size);
1592 else if (unformat (line_input, "rx-fifo-size %ld",
1593 &vcl_cfg->rx_fifo_size))
1595 if (VPPCOM_DEBUG > 0)
1596 clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
1597 vcm->my_pid, vcl_cfg->rx_fifo_size,
1598 vcl_cfg->rx_fifo_size);
1600 else if (unformat (line_input, "tx-fifo-size 0x%lx",
1601 &vcl_cfg->tx_fifo_size))
1603 if (VPPCOM_DEBUG > 0)
1604 clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
1605 vcm->my_pid, vcl_cfg->tx_fifo_size,
1606 vcl_cfg->tx_fifo_size);
1608 else if (unformat (line_input, "tx-fifo-size %ld",
1609 &vcl_cfg->tx_fifo_size))
1611 if (VPPCOM_DEBUG > 0)
1612 clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
1613 vcm->my_pid, vcl_cfg->tx_fifo_size,
1614 vcl_cfg->tx_fifo_size);
1616 else if (unformat (line_input, "event-queue-size 0x%lx",
1617 &vcl_cfg->event_queue_size))
1619 if (VPPCOM_DEBUG > 0)
1620 clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
1621 vcm->my_pid, vcl_cfg->event_queue_size,
1622 vcl_cfg->event_queue_size);
1624 else if (unformat (line_input, "event-queue-size %ld",
1625 &vcl_cfg->event_queue_size))
1627 if (VPPCOM_DEBUG > 0)
1628 clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
1629 vcm->my_pid, vcl_cfg->event_queue_size,
1630 vcl_cfg->event_queue_size);
1632 else if (unformat (line_input, "listen-queue-size 0x%lx",
1633 &vcl_cfg->listen_queue_size))
1635 if (VPPCOM_DEBUG > 0)
1636 clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
1637 vcm->my_pid, vcl_cfg->listen_queue_size,
1638 vcl_cfg->listen_queue_size);
1640 else if (unformat (line_input, "listen-queue-size %ld",
1641 &vcl_cfg->listen_queue_size))
1643 if (VPPCOM_DEBUG > 0)
1644 clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
1645 vcm->my_pid, vcl_cfg->listen_queue_size,
1646 vcl_cfg->listen_queue_size);
1648 else if (unformat (line_input, "app-timeout %f",
1649 &vcl_cfg->app_timeout))
1651 if (VPPCOM_DEBUG > 0)
1652 clib_warning ("[%d] configured app_timeout %f",
1653 vcm->my_pid, vcl_cfg->app_timeout);
1655 else if (unformat (line_input, "session-timeout %f",
1656 &vcl_cfg->session_timeout))
1658 if (VPPCOM_DEBUG > 0)
1659 clib_warning ("[%d] configured session_timeout %f",
1660 vcm->my_pid, vcl_cfg->session_timeout);
1662 else if (unformat (line_input, "accept-timeout %f",
1663 &vcl_cfg->accept_timeout))
1665 if (VPPCOM_DEBUG > 0)
1666 clib_warning ("[%d] configured accept_timeout %f",
1667 vcm->my_pid, vcl_cfg->accept_timeout);
1669 else if (unformat (line_input, "}"))
1672 if (VPPCOM_DEBUG > 0)
1673 clib_warning ("[%d] completed parsing vppcom config!",
1679 if (line_input->buffer[line_input->index] != '#')
1681 clib_warning ("[%d] Unknown vppcom config option: '%s'",
1682 vcm->my_pid, (char *)
1683 &line_input->buffer[line_input->index]);
1690 unformat_free (input);
1698 * VPPCOM Public API functions
1701 vppcom_app_create (char *app_name)
1703 vppcom_main_t *vcm = &vppcom_main;
1704 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1714 vcm->my_pid = getpid ();
1715 clib_fifo_validate (vcm->client_session_index_fifo,
1716 vcm->cfg.listen_queue_size);
1717 vppcom_cfg_init (vcl_cfg);
1718 conf_fname = getenv (VPPCOM_CONF_ENV);
1721 conf_fname = VPPCOM_CONF_DEFAULT;
1722 if (VPPCOM_DEBUG > 0)
1723 clib_warning ("[%d] getenv '%s' failed!", vcm->my_pid,
1726 vppcom_cfg_heapsize (conf_fname);
1727 vppcom_cfg_read (conf_fname);
1728 vcm->bind_session_index = ~0;
1729 vcm->main_cpu = os_get_thread_index ();
1730 heap = clib_mem_get_per_cpu_heap ();
1731 h = mheap_header (heap);
1733 /* make the main heap thread-safe */
1734 h->flags |= MHEAP_FLAG_THREAD_SAFE;
1736 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1738 clib_time_init (&vcm->clib_time);
1739 vppcom_init_error_string_table ();
1740 svm_fifo_segment_init (vcl_cfg->segment_baseva,
1741 20 /* timeout in secs */ );
1742 clib_spinlock_init (&vcm->sessions_lockp);
1743 vppcom_api_hookup ();
1746 if (vcm->my_client_index == ~0)
1748 vcm->app_state = STATE_APP_START;
1749 rv = vppcom_connect_to_vpp (app_name);
1752 clib_warning ("[%s] couldn't connect to VPP.", vcm->my_pid);
1756 if (VPPCOM_DEBUG > 0)
1757 clib_warning ("[%d] sending session enable", vcm->my_pid);
1759 rv = vppcom_app_session_enable ();
1762 clib_warning ("[%d] vppcom_app_session_enable() failed!",
1767 if (VPPCOM_DEBUG > 0)
1768 clib_warning ("[%d] sending app attach", vcm->my_pid);
1770 rv = vppcom_app_attach ();
1773 clib_warning ("[%d] vppcom_app_attach() failed!", vcm->my_pid);
1778 if (VPPCOM_DEBUG > 0)
1779 clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
1780 vcm->my_pid, app_name, vcm->my_client_index,
1781 vcm->my_client_index);
1787 vppcom_app_destroy (void)
1789 vppcom_main_t *vcm = &vppcom_main;
1792 if (vcm->my_client_index == ~0)
1795 if (VPPCOM_DEBUG > 0)
1796 clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
1797 vcm->my_pid, vcm->my_client_index, vcm->my_client_index);
1799 vppcom_app_detach ();
1800 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
1801 if (PREDICT_FALSE (rv))
1803 if (VPPCOM_DEBUG > 0)
1804 clib_warning ("[%d] application detach timed out, rv = %s (%d)",
1805 vcm->my_pid, vppcom_retval_str (rv), rv);
1807 vl_client_disconnect_from_vlib ();
1808 vcm->my_client_index = ~0;
1809 vcm->app_state = STATE_APP_START;
1813 vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
1815 vppcom_main_t *vcm = &vppcom_main;
1819 clib_spinlock_lock (&vcm->sessions_lockp);
1820 pool_get (vcm->sessions, session);
1821 session_index = session - vcm->sessions;
1824 session->proto = proto;
1825 session->state = STATE_START;
1826 session->is_nonblocking = is_nonblocking;
1827 clib_spinlock_unlock (&vcm->sessions_lockp);
1829 if (VPPCOM_DEBUG > 0)
1830 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1832 return (int) session_index;
1836 vppcom_session_close (uint32_t session_index)
1838 vppcom_main_t *vcm = &vppcom_main;
1839 session_t *session = 0;
1842 clib_spinlock_lock (&vcm->sessions_lockp);
1843 rv = vppcom_session_at_index (session_index, &session);
1844 if (PREDICT_FALSE (rv))
1846 clib_spinlock_unlock (&vcm->sessions_lockp);
1847 if (VPPCOM_DEBUG > 0)
1848 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1849 vcm->my_pid, session_index);
1852 clib_spinlock_unlock (&vcm->sessions_lockp);
1854 if (VPPCOM_DEBUG > 0)
1855 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1857 if (session->is_cut_thru)
1859 if (session->is_server)
1860 rv = vppcom_session_unbind_cut_thru (session);
1864 rv = (session->is_server) ?
1865 vppcom_session_unbind (session_index) :
1866 vppcom_session_disconnect (session_index);
1869 clib_spinlock_lock (&vcm->sessions_lockp);
1870 pool_put_index (vcm->sessions, session_index);
1871 clib_spinlock_unlock (&vcm->sessions_lockp);
1876 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
1878 vppcom_main_t *vcm = &vppcom_main;
1879 session_t *session = 0;
1883 return VPPCOM_EINVAL;
1885 clib_spinlock_lock (&vcm->sessions_lockp);
1886 rv = vppcom_session_at_index (session_index, &session);
1887 if (PREDICT_FALSE (rv))
1889 clib_spinlock_unlock (&vcm->sessions_lockp);
1890 if (VPPCOM_DEBUG > 0)
1891 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1892 vcm->my_pid, session_index);
1896 if (VPPCOM_DEBUG > 0)
1897 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1899 session->vrf = ep->vrf;
1900 session->is_ip4 = ep->is_ip4;
1901 memset (session->ip, 0, sizeof (*session->ip));
1902 clib_memcpy (session->ip, ep->ip, sizeof (session->ip));
1903 session->port = ep->port;
1905 clib_spinlock_unlock (&vcm->sessions_lockp);
1910 vppcom_session_listen (uint32_t session_index, uint32_t q_len)
1912 vppcom_main_t *vcm = &vppcom_main;
1913 session_t *session = 0;
1916 clib_spinlock_lock (&vcm->sessions_lockp);
1917 rv = vppcom_session_at_index (session_index, &session);
1918 if (PREDICT_FALSE (rv))
1920 clib_spinlock_unlock (&vcm->sessions_lockp);
1921 if (VPPCOM_DEBUG > 0)
1922 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1923 vcm->my_pid, session_index);
1927 if (VPPCOM_DEBUG > 0)
1928 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1930 ASSERT (vcm->bind_session_index == ~0);
1931 vcm->bind_session_index = session_index;
1932 vppcom_send_bind_sock (session);
1933 clib_spinlock_unlock (&vcm->sessions_lockp);
1934 rv = vppcom_wait_for_session_state_change (session_index, STATE_LISTEN,
1935 vcm->cfg.session_timeout);
1936 if (PREDICT_FALSE (rv))
1938 vcm->bind_session_index = ~0;
1939 if (VPPCOM_DEBUG > 0)
1940 clib_warning ("[%d] server listen timed out, rv = %d (%d)",
1941 vcm->my_pid, vppcom_retval_str (rv), rv);
1945 clib_spinlock_lock (&vcm->sessions_lockp);
1946 rv = vppcom_session_at_index (session_index, &session);
1947 if (PREDICT_FALSE (rv))
1949 clib_spinlock_unlock (&vcm->sessions_lockp);
1950 if (VPPCOM_DEBUG > 0)
1951 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1952 vcm->my_pid, session_index);
1955 session->is_listen = 1;
1956 clib_spinlock_unlock (&vcm->sessions_lockp);
1957 clib_fifo_validate (vcm->client_session_index_fifo, q_len);
1963 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
1964 double wait_for_time)
1966 vppcom_main_t *vcm = &vppcom_main;
1967 session_t *session = 0;
1968 u32 client_session_index;
1972 clib_spinlock_lock (&vcm->sessions_lockp);
1973 rv = vppcom_session_at_index (listen_session_index, &session);
1974 if (PREDICT_FALSE (rv))
1976 clib_spinlock_unlock (&vcm->sessions_lockp);
1977 if (VPPCOM_DEBUG > 0)
1978 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
1979 vcm->my_pid, listen_session_index);
1983 if (session->state != STATE_LISTEN)
1985 clib_spinlock_unlock (&vcm->sessions_lockp);
1986 if (VPPCOM_DEBUG > 0)
1987 clib_warning ("[%d] session not in listen state, state = %s",
1988 vcm->my_pid, vppcom_session_state_str (session->state));
1989 return VPPCOM_EBADFD;
1991 wait_for = session->is_nonblocking ? 0 :
1992 (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time;
1994 if (VPPCOM_DEBUG > 0)
1995 clib_warning ("[%d] sid %d, state %s (%d)", vcm->my_pid,
1996 listen_session_index,
1997 vppcom_session_state_str (session->state), session->state);
1998 clib_spinlock_unlock (&vcm->sessions_lockp);
2002 rv = vppcom_wait_for_client_session_index (wait_for);
2005 if ((VPPCOM_DEBUG > 0))
2006 clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)",
2007 vcm->my_pid, listen_session_index,
2008 vppcom_retval_str (rv), rv);
2009 if ((wait_for == 0) || (wait_for_time > 0))
2016 clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
2019 clib_spinlock_lock (&vcm->sessions_lockp);
2020 rv = vppcom_session_at_index (client_session_index, &session);
2021 ASSERT (rv == VPPCOM_OK);
2022 ASSERT (session->is_server);
2024 if (VPPCOM_DEBUG > 0)
2025 clib_warning ("[%d] Got a request: client sid %d", vcm->my_pid,
2026 client_session_index);
2028 ep->vrf = session->vrf;
2029 ep->is_cut_thru = session->is_cut_thru;
2030 ep->is_ip4 = session->is_ip4;
2031 ep->port = session->port;
2032 memset (ep->ip, 0, sizeof (ip6_address_t));
2033 clib_memcpy (ep->ip, session->ip, sizeof (ip6_address_t));
2034 session->state = STATE_LISTEN;
2035 clib_spinlock_unlock (&vcm->sessions_lockp);
2036 return (int) client_session_index;
2040 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
2042 vppcom_main_t *vcm = &vppcom_main;
2043 session_t *session = 0;
2045 ip46_address_t *ip46;
2047 clib_spinlock_lock (&vcm->sessions_lockp);
2048 rv = vppcom_session_at_index (session_index, &session);
2049 if (PREDICT_FALSE (rv))
2051 clib_spinlock_unlock (&vcm->sessions_lockp);
2052 if (VPPCOM_DEBUG > 0)
2053 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
2054 vcm->my_pid, session_index);
2058 if (session->state == STATE_CONNECT)
2060 clib_spinlock_unlock (&vcm->sessions_lockp);
2061 if (VPPCOM_DEBUG > 0)
2062 clib_warning ("[%d] session, sid (%d) already connected!",
2063 vcm->my_pid, session_index);
2067 session->vrf = server_ep->vrf;
2068 session->is_ip4 = server_ep->is_ip4;
2069 ip46 = (ip46_address_t *) session->ip;
2070 *ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
2071 session->port = server_ep->port;
2073 if (VPPCOM_DEBUG > 0)
2075 u8 *ip_str = format (0, "%U", format_ip46_address,
2076 &session->ip, session->is_ip4);
2077 clib_warning ("[%d] connect sid %d to %s server port %d",
2078 vcm->my_pid, session_index, ip_str,
2079 clib_net_to_host_u16 (session->port));
2083 vppcom_send_connect_sock (session, session_index);
2084 clib_spinlock_unlock (&vcm->sessions_lockp);
2085 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
2086 vcm->cfg.session_timeout);
2087 if (PREDICT_FALSE (rv))
2089 if (VPPCOM_DEBUG > 0)
2090 clib_warning ("[%d] connect timed out, rv = %s (%d)",
2091 vcm->my_pid, vppcom_retval_str (rv), rv);
2098 vppcom_session_read (uint32_t session_index, void *buf, int n)
2100 session_fifo_event_t _e, *e = &_e;
2101 vppcom_main_t *vcm = &vppcom_main;
2102 session_t *session = 0;
2103 svm_fifo_t *rx_fifo;
2110 clib_spinlock_lock (&vcm->sessions_lockp);
2111 rv = vppcom_session_at_index (session_index, &session);
2112 if (PREDICT_FALSE (rv))
2114 clib_spinlock_unlock (&vcm->sessions_lockp);
2115 if (VPPCOM_DEBUG > 0)
2116 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
2117 vcm->my_pid, session_index);
2121 if (session->is_cut_thru)
2123 rx_fifo = session->is_server ? session->server_rx_fifo :
2124 session->server_tx_fifo;
2125 fifo_str = session->is_server ? "server_rx_fifo" : "server_tx_fifo";
2126 clib_spinlock_unlock (&vcm->sessions_lockp);
2128 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2131 return VPPCOM_EAGAIN;
2136 rv = unix_shared_memory_queue_sub (session->event_queue, (u8 *) e,
2138 clib_spinlock_unlock (&vcm->sessions_lockp);
2140 return VPPCOM_EAGAIN;
2142 switch (e->event_type)
2144 case FIFO_EVENT_APP_RX:
2146 fifo_str = "app_rx_fifo";
2147 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2150 case FIFO_EVENT_DISCONNECT:
2151 return VPPCOM_ECONNRESET;
2154 if (VPPCOM_DEBUG > 0)
2155 clib_warning ("[%d] unknown event type %d", vcm->my_pid,
2157 return VPPCOM_EAGAIN;
2161 if (VPPCOM_DEBUG > 2)
2162 clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", vcm->my_pid,
2163 session_index, n_read, fifo_str, rx_fifo);
2168 vppcom_session_read_ready (session_t * session, u32 session_index)
2170 session_fifo_event_t _e, *e = &_e;
2171 vppcom_main_t *vcm = &vppcom_main;
2172 svm_fifo_t *rx_fifo;
2176 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2177 if (session->is_cut_thru)
2179 rx_fifo = session->is_server ? session->server_rx_fifo :
2180 session->server_tx_fifo;
2182 ready = svm_fifo_max_dequeue (rx_fifo);
2184 else if (session->is_listen)
2185 ready = clib_fifo_elts (vcm->client_session_index_fifo);
2188 rv = unix_shared_memory_queue_sub (vcm->app_event_queue, (u8 *) e,
2192 switch (e->event_type)
2194 case FIFO_EVENT_APP_RX:
2196 ready = svm_fifo_max_dequeue (rx_fifo);
2199 case FIFO_EVENT_DISCONNECT:
2200 return VPPCOM_ECONNRESET;
2203 clib_warning ("[%d] unknown event type %d", vcm->my_pid,
2209 if (VPPCOM_DEBUG > 2)
2210 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2212 session->is_server ? "server_rx_fifo" : "server_tx_fifo",
2219 vppcom_session_write (uint32_t session_index, void *buf, int n)
2221 vppcom_main_t *vcm = &vppcom_main;
2222 session_t *session = 0;
2223 svm_fifo_t *tx_fifo;
2224 unix_shared_memory_queue_t *q;
2225 session_fifo_event_t evt;
2232 clib_spinlock_lock (&vcm->sessions_lockp);
2233 rv = vppcom_session_at_index (session_index, &session);
2234 if (PREDICT_FALSE (rv))
2236 clib_spinlock_unlock (&vcm->sessions_lockp);
2237 if (VPPCOM_DEBUG > 0)
2238 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
2239 vcm->my_pid, session_index);
2243 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2244 session->server_tx_fifo : session->server_rx_fifo);
2245 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2246 "server_tx_fifo" : "server_rx_fifo");
2247 is_nonblocking = session->is_nonblocking;
2248 clib_spinlock_unlock (&vcm->sessions_lockp);
2252 rv = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
2254 while (!is_nonblocking && (rv <= 0));
2256 /* If event wasn't set, add one */
2257 if ((rv > 0) && svm_fifo_set_event (tx_fifo))
2261 /* Fabricate TX event, send to vpp */
2263 evt.event_type = FIFO_EVENT_APP_TX;
2264 evt.event_id = vcm->tx_event_id++;
2266 clib_spinlock_lock (&vcm->sessions_lockp);
2267 rval = vppcom_session_at_index (session_index, &session);
2268 if (PREDICT_FALSE (rval))
2270 clib_spinlock_unlock (&vcm->sessions_lockp);
2271 if (VPPCOM_DEBUG > 1)
2272 clib_warning ("[%d] invalid session, sid (%d) has been closed!",
2273 vcm->my_pid, session_index);
2276 q = session->event_queue;
2277 clib_spinlock_unlock (&vcm->sessions_lockp);
2279 unix_shared_memory_queue_add (q, (u8 *) & evt,
2280 0 /* do wait for mutex */ );
2283 if (VPPCOM_DEBUG > 2)
2284 clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", vcm->my_pid,
2285 session_index, rv, fifo_str, tx_fifo);
2291 vppcom_session_write_ready (session_t * session, u32 session_index)
2293 vppcom_main_t *vcm = &vppcom_main;
2294 svm_fifo_t *tx_fifo;
2297 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2298 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2299 session->server_tx_fifo : session->server_rx_fifo);
2301 rv = svm_fifo_max_enqueue (tx_fifo);
2303 if (VPPCOM_DEBUG > 2)
2304 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2306 session->is_server ? "server_tx_fifo" : "server_rx_fifo",
2312 vppcom_select (unsigned long n_bits, unsigned long *read_map,
2313 unsigned long *write_map, unsigned long *except_map,
2314 double time_to_wait)
2316 vppcom_main_t *vcm = &vppcom_main;
2318 session_t *session = 0;
2319 int rv, bits_set = 0;
2320 f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
2321 u32 minbits = clib_max (n_bits, BITS (uword));
2323 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
2327 clib_bitmap_validate (vcm->rd_bitmap, minbits);
2328 clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
2329 memset (read_map, 0, vec_len (vcm->rd_bitmap));
2333 clib_bitmap_validate (vcm->wr_bitmap, minbits);
2334 clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
2335 memset (write_map, 0, vec_len (vcm->wr_bitmap));
2339 clib_bitmap_validate (vcm->ex_bitmap, minbits);
2340 clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
2341 memset (except_map, 0, vec_len (vcm->ex_bitmap));
2347 clib_bitmap_foreach (session_index, vcm->rd_bitmap,
2349 clib_spinlock_lock (&vcm->sessions_lockp);
2350 rv = vppcom_session_at_index (session_index, &session);
2353 clib_spinlock_unlock (&vcm->sessions_lockp);
2354 if (VPPCOM_DEBUG > 1)
2355 clib_warning ("[%d] session %d specified in "
2356 "read_map is closed.", vcm->my_pid,
2358 bits_set = VPPCOM_EBADFD;
2362 rv = vppcom_session_read_ready (session, session_index);
2363 clib_spinlock_unlock (&vcm->sessions_lockp);
2364 if (vcm->ex_bitmap &&
2365 clib_bitmap_get (vcm->ex_bitmap, session_index) && (rv < 0))
2367 // TBD: clib_warning
2368 clib_bitmap_set_no_check (except_map, session_index, 1);
2373 // TBD: clib_warning
2374 clib_bitmap_set_no_check (read_map, session_index, 1);
2379 clib_bitmap_foreach (session_index, vcm->wr_bitmap,
2381 clib_spinlock_lock (&vcm->sessions_lockp);
2382 rv = vppcom_session_at_index (session_index, &session);
2385 clib_spinlock_unlock (&vcm->sessions_lockp);
2386 if (VPPCOM_DEBUG > 0)
2387 clib_warning ("[%d] session %d specified in "
2388 "write_map is closed.", vcm->my_pid,
2390 bits_set = VPPCOM_EBADFD;
2394 rv = vppcom_session_write_ready (session, session_index);
2395 clib_spinlock_unlock (&vcm->sessions_lockp);
2398 // TBD: clib_warning
2399 clib_bitmap_set_no_check (write_map, session_index, 1);
2404 clib_bitmap_foreach (session_index, vcm->ex_bitmap,
2406 clib_spinlock_lock (&vcm->sessions_lockp);
2407 rv = vppcom_session_at_index (session_index, &session);
2410 clib_spinlock_unlock (&vcm->sessions_lockp);
2411 if (VPPCOM_DEBUG > 1)
2412 clib_warning ("[%d] session %d specified in "
2413 "except_map is closed.", vcm->my_pid,
2415 bits_set = VPPCOM_EBADFD;
2419 rv = vppcom_session_read_ready (session, session_index);
2420 clib_spinlock_unlock (&vcm->sessions_lockp);
2423 // TBD: clib_warning
2424 clib_bitmap_set_no_check (except_map, session_index, 1);
2430 while (clib_time_now (&vcm->clib_time) < timeout);
2437 * fd.io coding-style-patch-verification: ON
2440 * eval: (c-set-style "gnu")