2 * Copyright (c) 2017 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.
71 typedef struct epoll_event vppcom_epoll_event_t;
78 vppcom_epoll_event_t ev;
79 #define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT)
91 volatile session_state_t state;
93 svm_fifo_t *server_rx_fifo;
94 svm_fifo_t *server_tx_fifo;
96 u64 vpp_session_handle;
97 unix_shared_memory_queue_t *vpp_event_queue;
99 /* Socket configuration state */
100 /* TBD: covert 'is_*' vars to bit in u8 flags; */
110 vppcom_ip46_t lcl_addr;
111 vppcom_ip46_t peer_addr;
114 u64 client_queue_address;
118 typedef struct vppcom_cfg_t_
123 u32 add_segment_size;
124 u32 preallocated_fifo_pairs;
127 u32 event_queue_size;
128 u32 listen_queue_size;
134 typedef struct vppcom_main_t_
137 u32 *client_session_index_fifo;
138 volatile u32 bind_session_index;
141 /* vpe input queue */
142 unix_shared_memory_queue_t *vl_input_queue;
144 /* API client handle */
148 clib_spinlock_t sessions_lockp;
151 /* Hash table for disconnect processing */
152 uword *session_index_by_vpp_handles;
155 clib_bitmap_t *rd_bitmap;
156 clib_bitmap_t *wr_bitmap;
157 clib_bitmap_t *ex_bitmap;
159 /* Our event queue */
160 unix_shared_memory_queue_t *app_event_queue;
162 /* unique segment name counter */
163 u32 unique_segment_index;
167 /* For deadman timers */
168 clib_time_t clib_time;
170 /* State of the connection, shared between msg RX thread and main thread */
171 volatile app_state_t app_state;
175 /* VNET_API_ERROR_FOO -> "Foo" hash table */
176 uword *error_string_by_error_number;
179 vppcom_main_t vppcom_main = {.my_client_index = ~0 };
182 vppcom_app_state_str (app_state_t state)
188 case STATE_APP_START:
189 st = "STATE_APP_START";
192 case STATE_APP_CONN_VPP:
193 st = "STATE_APP_CONN_VPP";
196 case STATE_APP_ENABLED:
197 st = "STATE_APP_ENABLED";
200 case STATE_APP_ATTACHED:
201 st = "STATE_APP_ATTACHED";
205 st = "UNKNOWN_APP_STATE";
213 vppcom_session_state_str (session_state_t state)
224 st = "STATE_CONNECT";
235 case STATE_DISCONNECT:
236 st = "STATE_DISCONNECT";
244 st = "UNKNOWN_STATE";
252 * VPPCOM Utility Functions
255 vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
257 vppcom_main_t *vcm = &vppcom_main;
259 /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */
260 if (PREDICT_FALSE ((session_index == ~0) ||
261 pool_is_free_index (vcm->sessions, session_index)))
263 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
264 vcm->my_pid, session_index);
265 return VPPCOM_EBADFD;
267 *sess = pool_elt_at_index (vcm->sessions, session_index);
272 vppcom_connect_to_vpp (char *app_name)
274 api_main_t *am = &api_main;
275 vppcom_main_t *vcm = &vppcom_main;
277 if (VPPCOM_DEBUG > 0)
278 printf ("\nConnecting to VPP api...");
279 if (vl_client_connect_to_vlib ("/vpe-api", app_name, 32) < 0)
281 clib_warning ("[%d] connect to vpp (%s) failed!",
282 vcm->my_pid, app_name);
283 return VPPCOM_ECONNREFUSED;
286 vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
287 vcm->my_client_index = am->my_client_index;
288 if (VPPCOM_DEBUG > 0)
289 printf (" connected!\n");
291 vcm->app_state = STATE_APP_CONN_VPP;
296 format_api_error (u8 * s, va_list * args)
298 vppcom_main_t *vcm = &vppcom_main;
299 i32 error = va_arg (*args, u32);
302 p = hash_get (vcm->error_string_by_error_number, -error);
305 s = format (s, "%s (%d)", p[0], error);
307 s = format (s, "%d", error);
312 vppcom_init_error_string_table (void)
314 vppcom_main_t *vcm = &vppcom_main;
316 vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
318 #define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s);
319 foreach_vnet_api_error;
322 hash_set (vcm->error_string_by_error_number, 99, "Misc");
326 vppcom_wait_for_app_state_change (app_state_t app_state)
328 vppcom_main_t *vcm = &vppcom_main;
329 f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
331 while (clib_time_now (&vcm->clib_time) < timeout)
333 if (vcm->app_state == app_state)
336 if (VPPCOM_DEBUG > 0)
337 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
338 vppcom_app_state_str (app_state), app_state);
339 return VPPCOM_ETIMEDOUT;
343 vppcom_wait_for_session_state_change (u32 session_index,
344 session_state_t state,
347 vppcom_main_t *vcm = &vppcom_main;
348 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
349 session_t *volatile session;
354 clib_spinlock_lock (&vcm->sessions_lockp);
355 rv = vppcom_session_at_index (session_index, &session);
356 if (PREDICT_FALSE (rv))
358 clib_spinlock_unlock (&vcm->sessions_lockp);
361 if (session->state == state)
363 clib_spinlock_unlock (&vcm->sessions_lockp);
366 clib_spinlock_unlock (&vcm->sessions_lockp);
368 while (clib_time_now (&vcm->clib_time) < timeout);
370 if (VPPCOM_DEBUG > 0)
371 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
372 vppcom_session_state_str (state), state);
373 return VPPCOM_ETIMEDOUT;
377 vppcom_wait_for_client_session_index (f64 wait_for_time)
379 vppcom_main_t *vcm = &vppcom_main;
380 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
384 if (clib_fifo_elts (vcm->client_session_index_fifo))
387 while (clib_time_now (&vcm->clib_time) < timeout);
389 if (wait_for_time == 0)
390 return VPPCOM_EAGAIN;
392 if (VPPCOM_DEBUG > 0)
393 clib_warning ("[%d] timeout waiting for client_session_index",
395 return VPPCOM_ETIMEDOUT;
399 * VPP-API message functions
402 vppcom_send_session_enable_disable (u8 is_enable)
404 vppcom_main_t *vcm = &vppcom_main;
405 vl_api_session_enable_disable_t *bmp;
406 bmp = vl_msg_api_alloc (sizeof (*bmp));
407 memset (bmp, 0, sizeof (*bmp));
409 bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE);
410 bmp->client_index = vcm->my_client_index;
411 bmp->context = htonl (0xfeedface);
412 bmp->is_enable = is_enable;
413 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
417 vppcom_app_session_enable (void)
419 vppcom_main_t *vcm = &vppcom_main;
422 if (vcm->app_state != STATE_APP_ENABLED)
424 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
425 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
426 if (PREDICT_FALSE (rv))
428 if (VPPCOM_DEBUG > 0)
429 clib_warning ("[%d] Session enable timed out, rv = %s (%d)",
430 vcm->my_pid, vppcom_retval_str (rv), rv);
438 vl_api_session_enable_disable_reply_t_handler
439 (vl_api_session_enable_disable_reply_t * mp)
441 vppcom_main_t *vcm = &vppcom_main;
445 clib_warning ("[%d] session_enable_disable failed: %U", vcm->my_pid,
446 format_api_error, ntohl (mp->retval));
449 vcm->app_state = STATE_APP_ENABLED;
453 vppcom_app_send_attach (void)
455 vppcom_main_t *vcm = &vppcom_main;
456 vl_api_application_attach_t *bmp;
457 bmp = vl_msg_api_alloc (sizeof (*bmp));
458 memset (bmp, 0, sizeof (*bmp));
460 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
461 bmp->client_index = vcm->my_client_index;
462 bmp->context = htonl (0xfeedface);
463 bmp->options[APP_OPTIONS_FLAGS] =
464 APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
465 APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE | APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
466 bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
467 bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
468 bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
469 bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
470 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
474 vppcom_app_attach (void)
476 vppcom_main_t *vcm = &vppcom_main;
479 vppcom_app_send_attach ();
480 rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
481 if (PREDICT_FALSE (rv))
483 if (VPPCOM_DEBUG > 0)
484 clib_warning ("[%d] application attach timed out, rv = %s (%d)",
485 vcm->my_pid, vppcom_retval_str (rv), rv);
492 vppcom_app_detach (void)
494 vppcom_main_t *vcm = &vppcom_main;
495 vl_api_application_detach_t *bmp;
496 bmp = vl_msg_api_alloc (sizeof (*bmp));
497 memset (bmp, 0, sizeof (*bmp));
499 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
500 bmp->client_index = vcm->my_client_index;
501 bmp->context = htonl (0xfeedface);
502 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
506 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
509 vppcom_main_t *vcm = &vppcom_main;
510 static svm_fifo_segment_create_args_t _a;
511 svm_fifo_segment_create_args_t *a = &_a;
514 memset (a, 0, sizeof (*a));
517 clib_warning ("[%d] attach failed: %U", vcm->my_pid,
518 format_api_error, ntohl (mp->retval));
522 if (mp->segment_name_length == 0)
524 clib_warning ("[%d] segment_name_length zero", vcm->my_pid);
528 a->segment_name = (char *) mp->segment_name;
529 a->segment_size = mp->segment_size;
531 ASSERT (mp->app_event_queue_address);
533 /* Attach to the segment vpp created */
534 rv = svm_fifo_segment_attach (a);
535 vec_reset_length (a->new_segment_indices);
536 if (PREDICT_FALSE (rv))
538 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", vcm->my_pid,
543 vcm->app_event_queue =
544 uword_to_pointer (mp->app_event_queue_address,
545 unix_shared_memory_queue_t *);
547 vcm->app_state = STATE_APP_ATTACHED;
551 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
554 vppcom_main_t *vcm = &vppcom_main;
557 clib_warning ("[%d] detach failed: %U", vcm->my_pid, format_api_error,
560 vcm->app_state = STATE_APP_ENABLED;
564 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
567 vppcom_main_t *vcm = &vppcom_main;
570 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
573 session_t *session = 0;
575 clib_spinlock_lock (&vcm->sessions_lockp);
576 rv = vppcom_session_at_index (p[0], &session);
577 if (PREDICT_FALSE (rv))
579 if (VPPCOM_DEBUG > 1)
580 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
583 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
584 session->state = STATE_DISCONNECT;
585 clib_spinlock_unlock (&vcm->sessions_lockp);
589 if (VPPCOM_DEBUG > 1)
590 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
595 clib_warning ("[%d] disconnect_session failed: %U", vcm->my_pid,
596 format_api_error, ntohl (mp->retval));
600 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
602 vppcom_main_t *vcm = &vppcom_main;
603 static svm_fifo_segment_create_args_t _a;
604 svm_fifo_segment_create_args_t *a = &_a;
607 memset (a, 0, sizeof (*a));
608 a->segment_name = (char *) mp->segment_name;
609 a->segment_size = mp->segment_size;
610 /* Attach to the segment vpp created */
611 rv = svm_fifo_segment_attach (a);
612 vec_reset_length (a->new_segment_indices);
613 if (PREDICT_FALSE (rv))
615 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
616 vcm->my_pid, mp->segment_name);
619 if (VPPCOM_DEBUG > 1)
620 clib_warning ("[%d] mapped new segment '%s' size %d", vcm->my_pid,
621 mp->segment_name, mp->segment_size);
625 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
627 vppcom_main_t *vcm = &vppcom_main;
628 session_t *session = 0;
629 vl_api_disconnect_session_reply_t *rmp;
633 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
637 clib_spinlock_lock (&vcm->sessions_lockp);
638 rval = vppcom_session_at_index (p[0], &session);
639 if (PREDICT_FALSE (rval))
641 if (VPPCOM_DEBUG > 1)
642 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
646 pool_put (vcm->sessions, session);
647 clib_spinlock_unlock (&vcm->sessions_lockp);
648 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
652 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
657 rmp = vl_msg_api_alloc (sizeof (*rmp));
658 memset (rmp, 0, sizeof (*rmp));
660 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
661 rmp->retval = htonl (rv);
662 rmp->handle = mp->handle;
663 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
667 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
669 vppcom_main_t *vcm = &vppcom_main;
670 session_t *session = 0;
671 vl_api_reset_session_reply_t *rmp;
675 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
679 clib_spinlock_lock (&vcm->sessions_lockp);
680 rval = vppcom_session_at_index (p[0], &session);
681 if (PREDICT_FALSE (rval))
683 if (VPPCOM_DEBUG > 1)
684 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
688 pool_put (vcm->sessions, session);
689 clib_spinlock_unlock (&vcm->sessions_lockp);
690 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
694 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
699 rmp = vl_msg_api_alloc (sizeof (*rmp));
700 memset (rmp, 0, sizeof (*rmp));
701 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
702 rmp->retval = htonl (rv);
703 rmp->handle = mp->handle;
704 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
708 vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
710 vppcom_main_t *vcm = &vppcom_main;
713 svm_fifo_t *rx_fifo, *tx_fifo;
719 clib_warning ("[%d] connect failed: %U", vcm->my_pid, format_api_error,
724 session_index = mp->context;
725 if (VPPCOM_DEBUG > 1)
726 clib_warning ("[%d] session_index = %d 0x%08x", vcm->my_pid,
727 session_index, session_index);
729 clib_spinlock_lock (&vcm->sessions_lockp);
730 if (pool_is_free_index (vcm->sessions, session_index))
732 clib_spinlock_unlock (&vcm->sessions_lockp);
733 if (VPPCOM_DEBUG > 1)
734 clib_warning ("[%d] invalid session, sid %d is closed!",
735 vcm->my_pid, session_index);
739 /* We've been redirected */
740 if (mp->segment_name_length > 0)
742 static svm_fifo_segment_create_args_t _a;
743 svm_fifo_segment_create_args_t *a = &_a;
746 memset (a, 0, sizeof (*a));
747 a->segment_name = (char *) mp->segment_name;
748 if (VPPCOM_DEBUG > 1)
749 clib_warning ("[%d] cut-thru segment: %s", vcm->my_pid,
751 rv = svm_fifo_segment_attach (a);
752 vec_reset_length (a->new_segment_indices);
753 if (PREDICT_FALSE (rv))
755 clib_spinlock_unlock (&vcm->sessions_lockp);
756 clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
757 vcm->my_pid, a->segment_name);
765 if (VPPCOM_DEBUG > 1)
766 clib_warning ("[%d] client sid %d", vcm->my_pid, session_index);
768 session = pool_elt_at_index (vcm->sessions, session_index);
769 session->is_cut_thru = is_cut_thru;
770 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
771 unix_shared_memory_queue_t *);
773 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
774 rx_fifo->client_session_index = session_index;
775 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
776 tx_fifo->client_session_index = session_index;
778 session->server_rx_fifo = rx_fifo;
779 session->server_tx_fifo = tx_fifo;
780 session->vpp_session_handle = mp->handle;
781 session->state = STATE_CONNECT;
783 /* Add it to lookup table */
784 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
785 clib_spinlock_unlock (&vcm->sessions_lockp);
789 vppcom_send_connect_sock (session_t * session, u32 session_index)
791 vppcom_main_t *vcm = &vppcom_main;
792 vl_api_connect_sock_t *cmp;
794 /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
795 session->is_server = 0;
796 cmp = vl_msg_api_alloc (sizeof (*cmp));
797 memset (cmp, 0, sizeof (*cmp));
798 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
799 cmp->client_index = vcm->my_client_index;
800 cmp->context = session_index;
802 if (VPPCOM_DEBUG > 1)
803 clib_warning ("[%d] session_index = %d 0x%08x",
804 vcm->my_pid, session_index, session_index);
806 cmp->vrf = session->vrf;
807 cmp->is_ip4 = session->peer_addr.is_ip4;
808 clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip));
809 cmp->port = session->port;
810 cmp->proto = session->proto;
811 clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
812 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
816 vppcom_send_disconnect (u32 session_index)
818 vppcom_main_t *vcm = &vppcom_main;
819 vl_api_disconnect_session_t *dmp;
820 session_t *session = 0;
823 clib_spinlock_lock (&vcm->sessions_lockp);
824 rv = vppcom_session_at_index (session_index, &session);
825 if (PREDICT_FALSE (rv))
827 clib_spinlock_unlock (&vcm->sessions_lockp);
828 if (VPPCOM_DEBUG > 1)
829 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
830 vcm->my_pid, session_index);
834 dmp = vl_msg_api_alloc (sizeof (*dmp));
835 memset (dmp, 0, sizeof (*dmp));
836 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
837 dmp->client_index = vcm->my_client_index;
838 dmp->handle = session->vpp_session_handle;
839 clib_spinlock_unlock (&vcm->sessions_lockp);
840 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
845 vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
847 vppcom_main_t *vcm = &vppcom_main;
848 session_t *session = 0;
852 clib_warning ("[%d] bind failed: %U", vcm->my_pid, format_api_error,
855 ASSERT (vcm->bind_session_index != ~0);
857 clib_spinlock_lock (&vcm->sessions_lockp);
858 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
861 session->vpp_session_handle = mp->handle;
862 hash_set (vcm->session_index_by_vpp_handles, mp->handle,
863 vcm->bind_session_index);
864 session->state = mp->retval ? STATE_FAILED : STATE_LISTEN;
865 vcm->bind_session_index = ~0;
867 clib_spinlock_unlock (&vcm->sessions_lockp);
871 vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
873 vppcom_main_t *vcm = &vppcom_main;
874 session_t *session = 0;
877 clib_spinlock_lock (&vcm->sessions_lockp);
878 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
881 if ((VPPCOM_DEBUG > 1) && (mp->retval))
882 clib_warning ("[%d] unbind failed: %U", vcm->my_pid, format_api_error,
885 vcm->bind_session_index = ~0;
886 session->state = STATE_START;
888 clib_spinlock_unlock (&vcm->sessions_lockp);
892 format_ip4_address (u8 * s, va_list * args)
894 u8 *a = va_arg (*args, u8 *);
895 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
899 format_ip6_address (u8 * s, va_list * args)
901 ip6_address_t *a = va_arg (*args, ip6_address_t *);
902 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
904 i_max_n_zero = ARRAY_LEN (a->as_u16);
906 i_first_zero = i_max_n_zero;
908 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
910 u32 is_zero = a->as_u16[i] == 0;
911 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
917 if ((!is_zero && n_zeros > max_n_zeros)
918 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
920 i_max_n_zero = i_first_zero;
921 max_n_zeros = n_zeros;
922 i_first_zero = ARRAY_LEN (a->as_u16);
927 last_double_colon = 0;
928 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
930 if (i == i_max_n_zero && max_n_zeros > 1)
932 s = format (s, "::");
933 i += max_n_zeros - 1;
934 last_double_colon = 1;
938 s = format (s, "%s%x",
939 (last_double_colon || i == 0) ? "" : ":",
940 clib_net_to_host_u16 (a->as_u16[i]));
941 last_double_colon = 0;
948 /* Format an IP46 address. */
950 format_ip46_address (u8 * s, va_list * args)
952 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
953 ip46_type_t type = va_arg (*args, ip46_type_t);
959 is_ip4 = ip46_address_is_ip4 (ip46);
970 format (s, "%U", format_ip4_address, &ip46->ip4) :
971 format (s, "%U", format_ip6_address, &ip46->ip6);
975 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
977 vppcom_main_t *vcm = &vppcom_main;
978 vl_api_accept_session_reply_t *rmp;
979 svm_fifo_t *rx_fifo, *tx_fifo;
984 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
986 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
987 rv = VNET_API_ERROR_QUEUE_FULL;
991 if (VPPCOM_DEBUG > 1)
993 u8 *ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
994 clib_warning ("[%d] accepted session from: %s:%d", vcm->my_pid, ip_str,
995 clib_net_to_host_u16 (mp->port));
999 clib_spinlock_lock (&vcm->sessions_lockp);
1000 /* Allocate local session and set it up */
1001 pool_get (vcm->sessions, session);
1002 memset (session, 0, sizeof (*session));
1003 session_index = session - vcm->sessions;
1005 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
1006 rx_fifo->client_session_index = session_index;
1007 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
1008 tx_fifo->client_session_index = session_index;
1010 session->server_rx_fifo = rx_fifo;
1011 session->server_tx_fifo = tx_fifo;
1012 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
1013 unix_shared_memory_queue_t *);
1014 session->state = STATE_ACCEPT;
1015 session->is_cut_thru = 0;
1016 session->is_server = 1;
1017 session->port = mp->port;
1018 session->peer_addr.is_ip4 = mp->is_ip4;
1019 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1020 sizeof (session->peer_addr.ip46));
1022 /* Add it to lookup table */
1023 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
1025 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1026 clib_spinlock_unlock (&vcm->sessions_lockp);
1029 * Send accept reply to vpp
1032 rmp = vl_msg_api_alloc (sizeof (*rmp));
1033 memset (rmp, 0, sizeof (*rmp));
1034 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1035 rmp->retval = htonl (rv);
1036 rmp->handle = mp->handle;
1037 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1041 * Acting as server for redirected connect requests
1044 vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
1046 static svm_fifo_segment_create_args_t _a;
1047 svm_fifo_segment_create_args_t *a = &_a;
1048 vppcom_main_t *vcm = &vppcom_main;
1050 svm_fifo_segment_private_t *seg;
1051 unix_shared_memory_queue_t *client_q;
1052 vl_api_connect_session_reply_t *rmp;
1053 session_t *session = 0;
1055 svm_fifo_t *rx_fifo;
1056 svm_fifo_t *tx_fifo;
1057 unix_shared_memory_queue_t *event_q = 0;
1059 clib_spinlock_lock (&vcm->sessions_lockp);
1060 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1062 if (VPPCOM_DEBUG > 1)
1063 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
1064 rv = VNET_API_ERROR_QUEUE_FULL;
1065 clib_spinlock_unlock (&vcm->sessions_lockp);
1069 /* Create the segment */
1070 memset (a, 0, sizeof (*a));
1071 a->segment_name = (char *) format ((u8 *) a->segment_name, "%d:segment%d%c",
1072 vcm->my_pid, vcm->unique_segment_index++,
1074 a->segment_size = vcm->cfg.segment_size;
1075 a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
1076 a->rx_fifo_size = vcm->cfg.rx_fifo_size;
1077 a->tx_fifo_size = vcm->cfg.tx_fifo_size;
1079 rv = svm_fifo_segment_create (a);
1080 if (PREDICT_FALSE (rv))
1082 if (VPPCOM_DEBUG > 1)
1083 clib_warning ("[%d] svm_fifo_segment_create ('%s') failed",
1084 vcm->my_pid, a->segment_name);
1085 vec_reset_length (a->new_segment_indices);
1086 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1090 if (VPPCOM_DEBUG > 1)
1091 clib_warning ("[%d] created segment '%s'", vcm->my_pid, a->segment_name);
1093 pool_get (vcm->sessions, session);
1094 memset (session, 0, sizeof (*session));
1095 session_index = session - vcm->sessions;
1097 session->sm_seg_index = a->new_segment_indices[0];
1098 vec_reset_length (a->new_segment_indices);
1100 seg = svm_fifo_segment_get_segment (session->sm_seg_index);
1101 rx_fifo = session->server_rx_fifo =
1102 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
1103 FIFO_SEGMENT_RX_FREELIST);
1104 if (PREDICT_FALSE (!session->server_rx_fifo))
1106 svm_fifo_segment_delete (seg);
1107 clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)",
1108 vcm->my_pid, vcm->cfg.rx_fifo_size,
1109 vcm->cfg.rx_fifo_size);
1110 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1111 clib_spinlock_unlock (&vcm->sessions_lockp);
1115 tx_fifo = session->server_tx_fifo =
1116 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
1117 FIFO_SEGMENT_TX_FREELIST);
1118 if (PREDICT_FALSE (!session->server_tx_fifo))
1120 svm_fifo_segment_delete (seg);
1121 if (VPPCOM_DEBUG > 1)
1122 clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)",
1123 vcm->my_pid, vcm->cfg.tx_fifo_size,
1124 vcm->cfg.tx_fifo_size);
1125 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1126 clib_spinlock_unlock (&vcm->sessions_lockp);
1130 session->server_rx_fifo->master_session_index = session_index;
1131 session->server_tx_fifo->master_session_index = session_index;
1132 session->client_queue_address = mp->client_queue_address;
1133 session->is_cut_thru = 1;
1134 session->is_server = 1;
1135 session->port = mp->port;
1136 session->peer_addr.is_ip4 = mp->is_ip4;
1137 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1138 sizeof (session->peer_addr.ip46));
1141 ssvm_shared_header_t *sh = seg->ssvm.sh;
1143 ssvm_lock_non_recursive (sh, 1);
1144 oldheap = ssvm_push_heap (sh);
1145 event_q = session->vpp_event_queue =
1146 unix_shared_memory_queue_init (vcm->cfg.event_queue_size,
1147 sizeof (session_fifo_event_t),
1148 vcm->my_pid, 0 /* signal not sent */ );
1149 ssvm_pop_heap (oldheap);
1150 ssvm_unlock_non_recursive (sh);
1153 session->state = STATE_ACCEPT;
1154 if (VPPCOM_DEBUG > 1)
1155 clib_warning ("[%d] Connected cut-thru to client: sid %d",
1156 vcm->my_pid, session_index);
1157 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1158 clib_spinlock_unlock (&vcm->sessions_lockp);
1161 rmp = vl_msg_api_alloc (sizeof (*rmp));
1162 memset (rmp, 0, sizeof (*rmp));
1164 rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
1165 rmp->context = mp->context;
1166 rmp->retval = htonl (rv);
1167 rmp->segment_name_length = vec_len (a->segment_name);
1168 clib_memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name));
1169 vec_reset_length (a->segment_name);
1173 rmp->vpp_event_queue_address = pointer_to_uword (event_q);
1174 rmp->server_rx_fifo = pointer_to_uword (rx_fifo);
1175 rmp->server_tx_fifo = pointer_to_uword (tx_fifo);
1178 uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *);
1181 vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
1185 vppcom_send_bind_sock (session_t * session)
1187 vppcom_main_t *vcm = &vppcom_main;
1188 vl_api_bind_sock_t *bmp;
1190 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1191 session->is_server = 1;
1192 bmp = vl_msg_api_alloc (sizeof (*bmp));
1193 memset (bmp, 0, sizeof (*bmp));
1195 bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
1196 bmp->client_index = vcm->my_client_index;
1197 bmp->context = htonl (0xfeedface);
1198 bmp->vrf = session->vrf;
1199 bmp->is_ip4 = session->lcl_addr.is_ip4;
1200 clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip));
1201 bmp->port = session->port;
1202 bmp->proto = session->proto;
1203 clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
1204 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
1208 vppcom_send_unbind_sock (u32 session_index)
1210 vppcom_main_t *vcm = &vppcom_main;
1211 vl_api_unbind_sock_t *ump;
1212 session_t *session = 0;
1215 clib_spinlock_lock (&vcm->sessions_lockp);
1216 rv = vppcom_session_at_index (session_index, &session);
1217 if (PREDICT_FALSE (rv))
1219 clib_spinlock_unlock (&vcm->sessions_lockp);
1220 if (VPPCOM_DEBUG > 0)
1221 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1222 vcm->my_pid, session_index);
1226 ump = vl_msg_api_alloc (sizeof (*ump));
1227 memset (ump, 0, sizeof (*ump));
1229 ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
1230 ump->client_index = vcm->my_client_index;
1231 ump->handle = session->vpp_session_handle;
1232 clib_spinlock_unlock (&vcm->sessions_lockp);
1233 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
1237 vppcom_session_unbind_cut_thru (session_t * session)
1239 svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
1240 svm_fifo_segment_private_t *seg;
1243 seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
1244 svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
1245 FIFO_SEGMENT_RX_FREELIST);
1246 svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
1247 FIFO_SEGMENT_TX_FREELIST);
1248 svm_fifo_segment_delete (seg);
1254 vppcom_session_unbind (u32 session_index)
1256 vppcom_main_t *vcm = &vppcom_main;
1259 clib_spinlock_lock (&vcm->sessions_lockp);
1260 if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index)))
1262 clib_spinlock_unlock (&vcm->sessions_lockp);
1263 if (VPPCOM_DEBUG > 1)
1264 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1265 vcm->my_pid, session_index);
1266 return VPPCOM_EBADFD;
1268 clib_spinlock_unlock (&vcm->sessions_lockp);
1270 vcm->bind_session_index = session_index;
1271 vppcom_send_unbind_sock (session_index);
1272 rv = vppcom_wait_for_session_state_change (session_index, STATE_START,
1273 vcm->cfg.session_timeout);
1274 if (PREDICT_FALSE (rv))
1276 vcm->bind_session_index = ~0;
1277 if (VPPCOM_DEBUG > 0)
1278 clib_warning ("[%d] server unbind timed out, rv = %s (%d)",
1279 vcm->my_pid, vppcom_retval_str (rv), rv);
1286 vppcom_session_disconnect (u32 session_index)
1288 vppcom_main_t *vcm = &vppcom_main;
1291 rv = vppcom_send_disconnect (session_index);
1292 if (PREDICT_FALSE (rv))
1295 rv = vppcom_wait_for_session_state_change (session_index, STATE_DISCONNECT,
1296 vcm->cfg.session_timeout);
1297 if (PREDICT_FALSE (rv))
1299 if (VPPCOM_DEBUG > 0)
1300 clib_warning ("[%d] client disconnect timed out, rv = %s (%d)",
1301 vcm->my_pid, vppcom_retval_str (rv), rv);
1307 #define foreach_sock_msg \
1308 _(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
1309 _(BIND_SOCK_REPLY, bind_sock_reply) \
1310 _(UNBIND_SOCK_REPLY, unbind_sock_reply) \
1311 _(ACCEPT_SESSION, accept_session) \
1312 _(CONNECT_SOCK, connect_sock) \
1313 _(CONNECT_SESSION_REPLY, connect_session_reply) \
1314 _(DISCONNECT_SESSION, disconnect_session) \
1315 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1316 _(RESET_SESSION, reset_session) \
1317 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1318 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1319 _(MAP_ANOTHER_SEGMENT, map_another_segment)
1322 vppcom_api_hookup (void)
1325 vl_msg_api_set_handlers(VL_API_##N, #n, \
1326 vl_api_##n##_t_handler, \
1328 vl_api_##n##_t_endian, \
1329 vl_api_##n##_t_print, \
1330 sizeof(vl_api_##n##_t), 1);
1336 vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
1340 vcl_cfg->heapsize = (256ULL << 20);
1341 vcl_cfg->segment_baseva = 0x200000000ULL;
1342 vcl_cfg->segment_size = (256 << 20);
1343 vcl_cfg->add_segment_size = (128 << 20);
1344 vcl_cfg->preallocated_fifo_pairs = 8;
1345 vcl_cfg->rx_fifo_size = (1 << 20);
1346 vcl_cfg->tx_fifo_size = (1 << 20);
1347 vcl_cfg->event_queue_size = 2048;
1348 vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
1349 vcl_cfg->app_timeout = 10 * 60.0;
1350 vcl_cfg->session_timeout = 10 * 60.0;
1351 vcl_cfg->accept_timeout = 60.0;
1355 vppcom_cfg_heapsize (char *conf_fname)
1357 vppcom_main_t *vcm = &vppcom_main;
1358 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1369 fp = fopen (conf_fname, "r");
1372 if (VPPCOM_DEBUG > 0)
1373 fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
1376 argv = calloc (1, sizeof (char *));
1382 if (fgets (inbuf, 4096, fp) == 0)
1384 p = strtok (inbuf, " \t\n");
1390 char **tmp = realloc (argv, argc * sizeof (char *));
1394 arg = strndup (p, 1024);
1397 argv[argc - 1] = arg;
1398 p = strtok (NULL, " \t\n");
1405 char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
1412 * Look for and parse the "heapsize" config parameter.
1413 * Manual since none of the clib infra has been bootstrapped yet.
1415 * Format: heapsize <nn>[mM][gG]
1418 for (i = 1; i < (argc - 1); i++)
1420 if (!strncmp (argv[i], "heapsize", 8))
1422 sizep = (u8 *) argv[i + 1];
1424 while (*sizep >= '0' && *sizep <= '9')
1427 size += *sizep++ - '0';
1431 if (VPPCOM_DEBUG > 0)
1432 clib_warning ("[%d] parse error '%s %s', "
1433 "using default heapsize %lld (0x%llx)",
1434 vcm->my_pid, argv[i], argv[i + 1],
1435 vcl_cfg->heapsize, vcl_cfg->heapsize);
1439 if (*sizep == 'g' || *sizep == 'G')
1440 vcl_cfg->heapsize = size << 30;
1441 else if (*sizep == 'm' || *sizep == 'M')
1442 vcl_cfg->heapsize = size << 20;
1445 if (VPPCOM_DEBUG > 0)
1446 clib_warning ("[%d] parse error '%s %s', "
1447 "using default heapsize %lld (0x%llx)",
1448 vcm->my_pid, argv[i], argv[i + 1],
1449 vcl_cfg->heapsize, vcl_cfg->heapsize);
1460 if (!clib_mem_init (0, vcl_cfg->heapsize))
1461 clib_warning ("[%d] vppcom heap allocation failure!", vcm->my_pid);
1462 else if (VPPCOM_DEBUG > 0)
1463 clib_warning ("[%d] allocated vppcom heapsize %lld (0x%llx)",
1464 vcm->my_pid, vcl_cfg->heapsize, vcl_cfg->heapsize);
1468 vppcom_cfg_read (char *conf_fname)
1470 vppcom_main_t *vcm = &vppcom_main;
1471 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1473 unformat_input_t _input, *input = &_input;
1474 unformat_input_t _line_input, *line_input = &_line_input;
1475 u8 vc_cfg_input = 0;
1480 fd = open (conf_fname, O_RDONLY);
1483 if (VPPCOM_DEBUG > 0)
1484 clib_warning ("[%d] open configuration file '%s' failed!",
1485 vcm->my_pid, conf_fname);
1489 if (fstat (fd, &s) < 0)
1491 if (VPPCOM_DEBUG > 0)
1492 clib_warning ("[%d] failed to stat `%s'", vcm->my_pid, conf_fname);
1496 if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
1498 if (VPPCOM_DEBUG > 0)
1499 clib_warning ("[%d] not a regular file `%s'", vcm->my_pid,
1504 unformat_init_clib_file (input, fd);
1506 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1508 (void) unformat_user (input, unformat_line_input, line_input);
1509 unformat_skip_white_space (line_input);
1511 if (unformat (line_input, "vppcom {"))
1519 if (unformat (line_input, "heapsize %s", &chroot_path))
1521 vec_terminate_c_string (chroot_path);
1522 if (VPPCOM_DEBUG > 0)
1523 clib_warning ("[%d] configured heapsize %s, "
1524 "actual heapsize %lld (0x%llx)",
1525 vcm->my_pid, chroot_path, vcl_cfg->heapsize,
1527 vec_free (chroot_path);
1529 else if (unformat (line_input, "api-prefix %s", &chroot_path))
1531 vec_terminate_c_string (chroot_path);
1532 vl_set_memory_root_path ((char *) chroot_path);
1533 if (VPPCOM_DEBUG > 0)
1534 clib_warning ("[%d] configured api-prefix %s",
1535 vcm->my_pid, chroot_path);
1536 chroot_path = 0; /* Don't vec_free() it! */
1538 else if (unformat (line_input, "uid %d", &uid))
1540 vl_set_memory_uid (uid);
1541 if (VPPCOM_DEBUG > 0)
1542 clib_warning ("[%d] configured uid %d", vcm->my_pid, uid);
1544 else if (unformat (line_input, "gid %d", &gid))
1546 vl_set_memory_gid (gid);
1547 if (VPPCOM_DEBUG > 0)
1548 clib_warning ("[%d] configured gid %d", vcm->my_pid, gid);
1550 else if (unformat (line_input, "segment-baseva 0x%llx",
1551 &vcl_cfg->segment_baseva))
1553 if (VPPCOM_DEBUG > 0)
1554 clib_warning ("[%d] configured segment_baseva 0x%llx",
1555 vcm->my_pid, vcl_cfg->segment_baseva);
1557 else if (unformat (line_input, "segment-size 0x%lx",
1558 &vcl_cfg->segment_size))
1560 if (VPPCOM_DEBUG > 0)
1561 clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
1562 vcm->my_pid, vcl_cfg->segment_size,
1563 vcl_cfg->segment_size);
1565 else if (unformat (line_input, "segment-size %ld",
1566 &vcl_cfg->segment_size))
1568 if (VPPCOM_DEBUG > 0)
1569 clib_warning ("[%d] configured segment_size %ld (0x%lx)",
1570 vcm->my_pid, vcl_cfg->segment_size,
1571 vcl_cfg->segment_size);
1573 else if (unformat (line_input, "add-segment-size 0x%lx",
1574 &vcl_cfg->add_segment_size))
1576 if (VPPCOM_DEBUG > 0)
1578 ("[%d] configured add_segment_size 0x%lx (%ld)",
1579 vcm->my_pid, vcl_cfg->add_segment_size,
1580 vcl_cfg->add_segment_size);
1582 else if (unformat (line_input, "add-segment-size %ld",
1583 &vcl_cfg->add_segment_size))
1585 if (VPPCOM_DEBUG > 0)
1587 ("[%d] configured add_segment_size %ld (0x%lx)",
1588 vcm->my_pid, vcl_cfg->add_segment_size,
1589 vcl_cfg->add_segment_size);
1591 else if (unformat (line_input, "preallocated-fifo-pairs %d",
1592 &vcl_cfg->preallocated_fifo_pairs))
1594 if (VPPCOM_DEBUG > 0)
1595 clib_warning ("[%d] configured preallocated_fifo_pairs "
1596 "%d (0x%x)", vcm->my_pid,
1597 vcl_cfg->preallocated_fifo_pairs,
1598 vcl_cfg->preallocated_fifo_pairs);
1600 else if (unformat (line_input, "rx-fifo-size 0x%lx",
1601 &vcl_cfg->rx_fifo_size))
1603 if (VPPCOM_DEBUG > 0)
1604 clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
1605 vcm->my_pid, vcl_cfg->rx_fifo_size,
1606 vcl_cfg->rx_fifo_size);
1608 else if (unformat (line_input, "rx-fifo-size %ld",
1609 &vcl_cfg->rx_fifo_size))
1611 if (VPPCOM_DEBUG > 0)
1612 clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
1613 vcm->my_pid, vcl_cfg->rx_fifo_size,
1614 vcl_cfg->rx_fifo_size);
1616 else if (unformat (line_input, "tx-fifo-size 0x%lx",
1617 &vcl_cfg->tx_fifo_size))
1619 if (VPPCOM_DEBUG > 0)
1620 clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
1621 vcm->my_pid, vcl_cfg->tx_fifo_size,
1622 vcl_cfg->tx_fifo_size);
1624 else if (unformat (line_input, "tx-fifo-size %ld",
1625 &vcl_cfg->tx_fifo_size))
1627 if (VPPCOM_DEBUG > 0)
1628 clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
1629 vcm->my_pid, vcl_cfg->tx_fifo_size,
1630 vcl_cfg->tx_fifo_size);
1632 else if (unformat (line_input, "event-queue-size 0x%lx",
1633 &vcl_cfg->event_queue_size))
1635 if (VPPCOM_DEBUG > 0)
1636 clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
1637 vcm->my_pid, vcl_cfg->event_queue_size,
1638 vcl_cfg->event_queue_size);
1640 else if (unformat (line_input, "event-queue-size %ld",
1641 &vcl_cfg->event_queue_size))
1643 if (VPPCOM_DEBUG > 0)
1644 clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
1645 vcm->my_pid, vcl_cfg->event_queue_size,
1646 vcl_cfg->event_queue_size);
1648 else if (unformat (line_input, "listen-queue-size 0x%lx",
1649 &vcl_cfg->listen_queue_size))
1651 if (VPPCOM_DEBUG > 0)
1652 clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
1653 vcm->my_pid, vcl_cfg->listen_queue_size,
1654 vcl_cfg->listen_queue_size);
1656 else if (unformat (line_input, "listen-queue-size %ld",
1657 &vcl_cfg->listen_queue_size))
1659 if (VPPCOM_DEBUG > 0)
1660 clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
1661 vcm->my_pid, vcl_cfg->listen_queue_size,
1662 vcl_cfg->listen_queue_size);
1664 else if (unformat (line_input, "app-timeout %f",
1665 &vcl_cfg->app_timeout))
1667 if (VPPCOM_DEBUG > 0)
1668 clib_warning ("[%d] configured app_timeout %f",
1669 vcm->my_pid, vcl_cfg->app_timeout);
1671 else if (unformat (line_input, "session-timeout %f",
1672 &vcl_cfg->session_timeout))
1674 if (VPPCOM_DEBUG > 0)
1675 clib_warning ("[%d] configured session_timeout %f",
1676 vcm->my_pid, vcl_cfg->session_timeout);
1678 else if (unformat (line_input, "accept-timeout %f",
1679 &vcl_cfg->accept_timeout))
1681 if (VPPCOM_DEBUG > 0)
1682 clib_warning ("[%d] configured accept_timeout %f",
1683 vcm->my_pid, vcl_cfg->accept_timeout);
1685 else if (unformat (line_input, "}"))
1688 if (VPPCOM_DEBUG > 0)
1689 clib_warning ("[%d] completed parsing vppcom config!",
1695 if (line_input->buffer[line_input->index] != '#')
1697 clib_warning ("[%d] Unknown vppcom config option: '%s'",
1698 vcm->my_pid, (char *)
1699 &line_input->buffer[line_input->index]);
1706 unformat_free (input);
1714 * VPPCOM Public API functions
1717 vppcom_app_create (char *app_name)
1719 vppcom_main_t *vcm = &vppcom_main;
1720 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1730 vcm->my_pid = getpid ();
1731 clib_fifo_validate (vcm->client_session_index_fifo,
1732 vcm->cfg.listen_queue_size);
1733 vppcom_cfg_init (vcl_cfg);
1734 conf_fname = getenv (VPPCOM_CONF_ENV);
1737 conf_fname = VPPCOM_CONF_DEFAULT;
1738 if (VPPCOM_DEBUG > 0)
1739 clib_warning ("[%d] getenv '%s' failed!", vcm->my_pid,
1742 vppcom_cfg_heapsize (conf_fname);
1743 vppcom_cfg_read (conf_fname);
1744 vcm->bind_session_index = ~0;
1745 vcm->main_cpu = os_get_thread_index ();
1746 heap = clib_mem_get_per_cpu_heap ();
1747 h = mheap_header (heap);
1749 /* make the main heap thread-safe */
1750 h->flags |= MHEAP_FLAG_THREAD_SAFE;
1752 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1754 clib_time_init (&vcm->clib_time);
1755 vppcom_init_error_string_table ();
1756 svm_fifo_segment_init (vcl_cfg->segment_baseva,
1757 20 /* timeout in secs */ );
1758 clib_spinlock_init (&vcm->sessions_lockp);
1759 vppcom_api_hookup ();
1762 if (vcm->my_client_index == ~0)
1764 vcm->app_state = STATE_APP_START;
1765 rv = vppcom_connect_to_vpp (app_name);
1768 clib_warning ("[%d] couldn't connect to VPP.", vcm->my_pid);
1772 if (VPPCOM_DEBUG > 0)
1773 clib_warning ("[%d] sending session enable", vcm->my_pid);
1775 rv = vppcom_app_session_enable ();
1778 clib_warning ("[%d] vppcom_app_session_enable() failed!",
1783 if (VPPCOM_DEBUG > 0)
1784 clib_warning ("[%d] sending app attach", vcm->my_pid);
1786 rv = vppcom_app_attach ();
1789 clib_warning ("[%d] vppcom_app_attach() failed!", vcm->my_pid);
1794 if (VPPCOM_DEBUG > 0)
1795 clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
1796 vcm->my_pid, app_name, vcm->my_client_index,
1797 vcm->my_client_index);
1803 vppcom_app_destroy (void)
1805 vppcom_main_t *vcm = &vppcom_main;
1808 if (vcm->my_client_index == ~0)
1811 if (VPPCOM_DEBUG > 0)
1812 clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
1813 vcm->my_pid, vcm->my_client_index, vcm->my_client_index);
1815 vppcom_app_detach ();
1816 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
1817 if (PREDICT_FALSE (rv))
1819 if (VPPCOM_DEBUG > 0)
1820 clib_warning ("[%d] application detach timed out, rv = %s (%d)",
1821 vcm->my_pid, vppcom_retval_str (rv), rv);
1823 vl_client_disconnect_from_vlib ();
1824 vcm->my_client_index = ~0;
1825 vcm->app_state = STATE_APP_START;
1829 vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
1831 vppcom_main_t *vcm = &vppcom_main;
1835 clib_spinlock_lock (&vcm->sessions_lockp);
1836 pool_get (vcm->sessions, session);
1837 memset (session, 0, sizeof (*session));
1838 session_index = session - vcm->sessions;
1841 session->proto = proto;
1842 session->state = STATE_START;
1843 session->is_nonblocking = is_nonblocking ? 1 : 0;
1844 clib_spinlock_unlock (&vcm->sessions_lockp);
1846 if (VPPCOM_DEBUG > 0)
1847 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1849 return (int) session_index;
1853 vppcom_session_close (uint32_t session_index)
1855 vppcom_main_t *vcm = &vppcom_main;
1856 session_t *session = 0;
1859 clib_spinlock_lock (&vcm->sessions_lockp);
1860 rv = vppcom_session_at_index (session_index, &session);
1861 if (PREDICT_FALSE (rv))
1863 if (VPPCOM_DEBUG > 0)
1864 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1865 vcm->my_pid, session_index);
1866 clib_spinlock_unlock (&vcm->sessions_lockp);
1869 clib_spinlock_unlock (&vcm->sessions_lockp);
1871 if (VPPCOM_DEBUG > 0)
1872 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1874 if (session->is_vep)
1877 for (next_sid = session->vep.next_sid; next_sid != ~0;
1878 next_sid = session->vep.next_sid)
1880 rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
1881 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1882 clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
1883 "rv = %s (%d)", session_index, next_sid,
1884 vcm->my_pid, session_index,
1885 vppcom_retval_str (rv), rv);
1887 clib_spinlock_lock (&vcm->sessions_lockp);
1888 rv = vppcom_session_at_index (session_index, &session);
1889 if (PREDICT_FALSE (rv))
1891 if (VPPCOM_DEBUG > 0)
1893 ("[%d] invalid session, sid (%u) has been closed!",
1894 vcm->my_pid, session_index);
1895 clib_spinlock_unlock (&vcm->sessions_lockp);
1898 clib_spinlock_unlock (&vcm->sessions_lockp);
1903 if (session->is_vep_session)
1905 u32 vep_idx = session->vep.vep_idx;
1906 rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
1907 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1908 clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
1909 "rv = %s (%d)", vep_idx, session_index,
1910 vcm->my_pid, session_index,
1911 vppcom_retval_str (rv), rv);
1913 clib_spinlock_lock (&vcm->sessions_lockp);
1914 rv = vppcom_session_at_index (session_index, &session);
1915 if (PREDICT_FALSE (rv))
1917 if (VPPCOM_DEBUG > 0)
1919 ("[%d] invalid session, sid (%u) has been closed!",
1920 vcm->my_pid, session_index);
1921 clib_spinlock_unlock (&vcm->sessions_lockp);
1924 clib_spinlock_unlock (&vcm->sessions_lockp);
1927 if (session->is_cut_thru && session->is_server &&
1928 (session->state == STATE_ACCEPT))
1930 rv = vppcom_session_unbind_cut_thru (session);
1931 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1932 clib_warning ("[%d] unbind cut-thru (session %d) failed, "
1934 vcm->my_pid, session_index,
1935 vppcom_retval_str (rv), rv);
1937 else if (session->is_server && session->is_listen)
1939 rv = vppcom_session_unbind (session_index);
1940 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1941 clib_warning ("[%d] unbind (session %d) failed, rv = %s (%d)",
1942 vcm->my_pid, session_index,
1943 vppcom_retval_str (rv), rv);
1945 else if (session->state == STATE_CONNECT)
1947 rv = vppcom_session_disconnect (session_index);
1948 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1949 clib_warning ("[%d] disconnect (session %d) failed, rv = %s (%d)",
1950 vcm->my_pid, session_index,
1951 vppcom_retval_str (rv), rv);
1954 pool_put_index (vcm->sessions, session_index);
1960 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
1962 vppcom_main_t *vcm = &vppcom_main;
1963 session_t *session = 0;
1967 return VPPCOM_EINVAL;
1969 clib_spinlock_lock (&vcm->sessions_lockp);
1970 rv = vppcom_session_at_index (session_index, &session);
1971 if (PREDICT_FALSE (rv))
1973 clib_spinlock_unlock (&vcm->sessions_lockp);
1974 if (VPPCOM_DEBUG > 0)
1975 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1976 vcm->my_pid, session_index);
1980 if (session->is_vep)
1982 clib_spinlock_unlock (&vcm->sessions_lockp);
1983 if (VPPCOM_DEBUG > 0)
1984 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
1985 vcm->my_pid, session_index);
1986 return VPPCOM_EBADFD;
1989 if (VPPCOM_DEBUG > 0)
1990 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1992 session->vrf = ep->vrf;
1993 session->lcl_addr.is_ip4 = ep->is_ip4;
1994 session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip);
1995 session->port = ep->port;
1997 clib_spinlock_unlock (&vcm->sessions_lockp);
2002 vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
2004 vppcom_main_t *vcm = &vppcom_main;
2005 session_t *listen_session = 0;
2008 clib_spinlock_lock (&vcm->sessions_lockp);
2009 rv = vppcom_session_at_index (listen_session_index, &listen_session);
2010 if (PREDICT_FALSE (rv))
2012 clib_spinlock_unlock (&vcm->sessions_lockp);
2013 if (VPPCOM_DEBUG > 0)
2014 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2015 vcm->my_pid, listen_session_index);
2019 if (listen_session->is_vep)
2021 clib_spinlock_unlock (&vcm->sessions_lockp);
2022 if (VPPCOM_DEBUG > 0)
2023 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2024 vcm->my_pid, listen_session_index);
2025 return VPPCOM_EBADFD;
2028 if (VPPCOM_DEBUG > 0)
2029 clib_warning ("[%d] sid %d", vcm->my_pid, listen_session_index);
2031 ASSERT (vcm->bind_session_index == ~0);
2032 vcm->bind_session_index = listen_session_index;
2033 vppcom_send_bind_sock (listen_session);
2034 clib_spinlock_unlock (&vcm->sessions_lockp);
2036 vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
2037 vcm->cfg.session_timeout);
2038 if (PREDICT_FALSE (rv))
2040 vcm->bind_session_index = ~0;
2041 if (VPPCOM_DEBUG > 0)
2042 clib_warning ("[%d] server listen timed out, rv = %d (%d)",
2043 vcm->my_pid, vppcom_retval_str (rv), rv);
2047 clib_spinlock_lock (&vcm->sessions_lockp);
2048 rv = vppcom_session_at_index (listen_session_index, &listen_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 (%u) has been closed!",
2054 vcm->my_pid, listen_session_index);
2057 listen_session->is_listen = 1;
2058 clib_fifo_validate (vcm->client_session_index_fifo, q_len);
2059 clib_spinlock_unlock (&vcm->sessions_lockp);
2065 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
2066 double wait_for_time)
2068 vppcom_main_t *vcm = &vppcom_main;
2069 session_t *listen_session = 0;
2070 session_t *client_session = 0;
2071 u32 client_session_index;
2075 clib_spinlock_lock (&vcm->sessions_lockp);
2076 rv = vppcom_session_at_index (listen_session_index, &listen_session);
2077 if (PREDICT_FALSE (rv))
2079 clib_spinlock_unlock (&vcm->sessions_lockp);
2080 if (VPPCOM_DEBUG > 0)
2081 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2082 vcm->my_pid, listen_session_index);
2086 if (listen_session->is_vep)
2088 clib_spinlock_unlock (&vcm->sessions_lockp);
2089 if (VPPCOM_DEBUG > 0)
2090 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2091 vcm->my_pid, listen_session_index);
2092 return VPPCOM_EBADFD;
2095 if (listen_session->state != STATE_LISTEN)
2097 clib_spinlock_unlock (&vcm->sessions_lockp);
2098 if (VPPCOM_DEBUG > 0)
2099 clib_warning ("[%d] session not in listen state, state = %s",
2101 vppcom_session_state_str (listen_session->state));
2102 return VPPCOM_EBADFD;
2104 wait_for = listen_session->is_nonblocking ? 0 :
2105 (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time;
2107 if (VPPCOM_DEBUG > 0)
2108 clib_warning ("[%d] sid %d: %s (%d)", vcm->my_pid,
2109 listen_session_index,
2110 vppcom_session_state_str (listen_session->state),
2111 listen_session->state);
2112 clib_spinlock_unlock (&vcm->sessions_lockp);
2116 rv = vppcom_wait_for_client_session_index (wait_for);
2119 if ((VPPCOM_DEBUG > 0))
2120 clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)",
2121 vcm->my_pid, listen_session_index,
2122 vppcom_retval_str (rv), rv);
2123 if ((wait_for == 0) || (wait_for_time > 0))
2130 clib_spinlock_lock (&vcm->sessions_lockp);
2131 clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
2132 rv = vppcom_session_at_index (client_session_index, &client_session);
2133 ASSERT (rv == VPPCOM_OK);
2134 ASSERT (client_session->peer_addr.is_ip4 ==
2135 listen_session->lcl_addr.is_ip4);
2137 if (VPPCOM_DEBUG > 0)
2138 clib_warning ("[%d] Got a request: client sid %d", vcm->my_pid,
2139 client_session_index);
2141 ep->vrf = client_session->vrf;
2142 ep->is_cut_thru = client_session->is_cut_thru;
2143 ep->is_ip4 = client_session->peer_addr.is_ip4;
2144 ep->port = client_session->port;
2145 if (client_session->peer_addr.is_ip4)
2146 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4,
2147 sizeof (ip4_address_t));
2149 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6,
2150 sizeof (ip6_address_t));
2151 clib_spinlock_unlock (&vcm->sessions_lockp);
2152 return (int) client_session_index;
2156 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
2158 vppcom_main_t *vcm = &vppcom_main;
2159 session_t *session = 0;
2162 clib_spinlock_lock (&vcm->sessions_lockp);
2163 rv = vppcom_session_at_index (session_index, &session);
2164 if (PREDICT_FALSE (rv))
2166 clib_spinlock_unlock (&vcm->sessions_lockp);
2167 if (VPPCOM_DEBUG > 0)
2168 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2169 vcm->my_pid, session_index);
2173 if (session->is_vep)
2175 clib_spinlock_unlock (&vcm->sessions_lockp);
2176 if (VPPCOM_DEBUG > 0)
2177 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2178 vcm->my_pid, session_index);
2179 return VPPCOM_EBADFD;
2182 if (session->state == STATE_CONNECT)
2184 clib_spinlock_unlock (&vcm->sessions_lockp);
2185 if (VPPCOM_DEBUG > 0)
2186 clib_warning ("[%d] session, sid (%u) already connected!",
2187 vcm->my_pid, session_index);
2191 session->vrf = server_ep->vrf;
2192 session->peer_addr.is_ip4 = server_ep->is_ip4;
2193 session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
2194 session->port = server_ep->port;
2196 if (VPPCOM_DEBUG > 0)
2198 u8 *ip_str = format (0, "%U", format_ip46_address,
2199 &session->peer_addr.ip46,
2200 session->peer_addr.is_ip4);
2201 clib_warning ("[%d] connect sid %d to %s server port %d proto %s",
2202 vcm->my_pid, session_index, ip_str,
2203 clib_net_to_host_u16 (session->port),
2204 session->proto ? "UDP" : "TCP");
2208 vppcom_send_connect_sock (session, session_index);
2209 clib_spinlock_unlock (&vcm->sessions_lockp);
2210 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
2211 vcm->cfg.session_timeout);
2212 if (PREDICT_FALSE (rv))
2214 if (VPPCOM_DEBUG > 0)
2215 clib_warning ("[%d] connect timed out, rv = %s (%d)",
2216 vcm->my_pid, vppcom_retval_str (rv), rv);
2219 if (VPPCOM_DEBUG > 0)
2220 clib_warning ("[%d] sid %d connected!", vcm->my_pid, session_index);
2226 vppcom_session_read (uint32_t session_index, void *buf, int n)
2228 vppcom_main_t *vcm = &vppcom_main;
2229 session_t *session = 0;
2230 svm_fifo_t *rx_fifo;
2238 clib_spinlock_lock (&vcm->sessions_lockp);
2239 rv = vppcom_session_at_index (session_index, &session);
2240 if (PREDICT_FALSE (rv))
2242 clib_spinlock_unlock (&vcm->sessions_lockp);
2243 if (VPPCOM_DEBUG > 0)
2244 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2245 vcm->my_pid, session_index);
2249 if (session->is_vep)
2251 clib_spinlock_unlock (&vcm->sessions_lockp);
2252 if (VPPCOM_DEBUG > 0)
2253 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2254 vcm->my_pid, session_index);
2255 return VPPCOM_EBADFD;
2258 if (session->state == STATE_DISCONNECT)
2260 clib_spinlock_unlock (&vcm->sessions_lockp);
2261 if (VPPCOM_DEBUG > 0)
2262 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2263 vcm->my_pid, session_index);
2264 return VPPCOM_ECONNRESET;
2267 rx_fifo = ((!session->is_cut_thru || session->is_server) ?
2268 session->server_rx_fifo : session->server_tx_fifo);
2269 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2270 "server_rx_fifo" : "server_tx_fifo");
2271 poll_et = EPOLLET & session->vep.ev.events;
2272 clib_spinlock_unlock (&vcm->sessions_lockp);
2276 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2278 while (!session->is_nonblocking && (n_read <= 0));
2280 if (poll_et && (n_read <= 0))
2282 clib_spinlock_lock (&vcm->sessions_lockp);
2283 session->vep.et_mask |= EPOLLIN;
2284 clib_spinlock_unlock (&vcm->sessions_lockp);
2287 if ((VPPCOM_DEBUG > 2) && (n_read > 0))
2288 clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", vcm->my_pid,
2289 session_index, n_read, fifo_str, rx_fifo);
2291 return (n_read <= 0) ? VPPCOM_EAGAIN : n_read;
2295 vppcom_session_read_ready (session_t * session, u32 session_index)
2297 vppcom_main_t *vcm = &vppcom_main;
2298 svm_fifo_t *rx_fifo;
2301 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2302 if (session->is_vep)
2304 clib_spinlock_unlock (&vcm->sessions_lockp);
2305 if (VPPCOM_DEBUG > 0)
2306 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2307 vcm->my_pid, session_index);
2308 return VPPCOM_EBADFD;
2311 if (session->state == STATE_DISCONNECT)
2313 if (VPPCOM_DEBUG > 0)
2314 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2315 vcm->my_pid, session_index);
2316 return VPPCOM_ECONNRESET;
2319 if (session->is_listen)
2320 ready = clib_fifo_elts (vcm->client_session_index_fifo);
2323 rx_fifo = ((!session->is_cut_thru || session->is_server) ?
2324 session->server_rx_fifo : session->server_tx_fifo);
2326 ready = svm_fifo_max_dequeue (rx_fifo);
2329 if (VPPCOM_DEBUG > 3)
2330 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2332 session->is_server ? "server_rx_fifo" : "server_tx_fifo",
2334 if ((session->vep.ev.events & EPOLLET) && (ready == 0))
2335 session->vep.et_mask |= EPOLLIN;
2341 vppcom_session_write (uint32_t session_index, void *buf, int n)
2343 vppcom_main_t *vcm = &vppcom_main;
2344 session_t *session = 0;
2345 svm_fifo_t *tx_fifo;
2346 unix_shared_memory_queue_t *q;
2347 session_fifo_event_t evt;
2354 clib_spinlock_lock (&vcm->sessions_lockp);
2355 rv = vppcom_session_at_index (session_index, &session);
2356 if (PREDICT_FALSE (rv))
2358 clib_spinlock_unlock (&vcm->sessions_lockp);
2359 if (VPPCOM_DEBUG > 0)
2360 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2361 vcm->my_pid, session_index);
2365 if (session->is_vep)
2367 clib_spinlock_unlock (&vcm->sessions_lockp);
2368 if (VPPCOM_DEBUG > 0)
2369 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2370 vcm->my_pid, session_index);
2371 return VPPCOM_EBADFD;
2374 if (session->state == STATE_DISCONNECT)
2376 clib_spinlock_unlock (&vcm->sessions_lockp);
2377 if (VPPCOM_DEBUG > 0)
2378 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2379 vcm->my_pid, session_index);
2380 return VPPCOM_ECONNRESET;
2383 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2384 session->server_tx_fifo : session->server_rx_fifo);
2385 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2386 "server_tx_fifo" : "server_rx_fifo");
2387 q = session->vpp_event_queue;
2388 poll_et = EPOLLET & session->vep.ev.events;
2389 clib_spinlock_unlock (&vcm->sessions_lockp);
2393 n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
2395 while (!session->is_nonblocking && (n_write <= 0));
2397 /* If event wasn't set, add one */
2398 if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo))
2402 /* Fabricate TX event, send to vpp */
2404 evt.event_type = FIFO_EVENT_APP_TX;
2406 rval = vppcom_session_at_index (session_index, &session);
2407 if (PREDICT_FALSE (rval))
2409 if (VPPCOM_DEBUG > 1)
2410 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2411 vcm->my_pid, session_index);
2415 unix_shared_memory_queue_add (q, (u8 *) & evt,
2416 0 /* do wait for mutex */ );
2419 if (poll_et && (n_write <= 0))
2421 clib_spinlock_lock (&vcm->sessions_lockp);
2422 session->vep.et_mask |= EPOLLOUT;
2423 clib_spinlock_unlock (&vcm->sessions_lockp);
2426 if (VPPCOM_DEBUG > 2)
2429 clib_warning ("[%d] sid %d, FIFO-FULL %s (%p)", vcm->my_pid,
2430 session_index, fifo_str, tx_fifo);
2432 clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", vcm->my_pid,
2433 session_index, n_write, fifo_str, tx_fifo);
2435 return (n_write < 0) ? VPPCOM_EAGAIN : n_write;
2439 vppcom_session_write_ready (session_t * session, u32 session_index)
2441 vppcom_main_t *vcm = &vppcom_main;
2442 svm_fifo_t *tx_fifo;
2446 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2447 if (session->is_vep)
2449 clib_spinlock_unlock (&vcm->sessions_lockp);
2450 if (VPPCOM_DEBUG > 0)
2451 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2452 vcm->my_pid, session_index);
2453 return VPPCOM_EBADFD;
2456 if (session->state == STATE_DISCONNECT)
2458 if (VPPCOM_DEBUG > 0)
2459 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2460 vcm->my_pid, session_index);
2461 return VPPCOM_ECONNRESET;
2464 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2465 session->server_tx_fifo : session->server_rx_fifo);
2466 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2467 "server_tx_fifo" : "server_rx_fifo");
2469 ready = svm_fifo_max_enqueue (tx_fifo);
2471 if (VPPCOM_DEBUG > 3)
2472 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2473 session_index, fifo_str, tx_fifo, ready);
2474 if ((session->vep.ev.events & EPOLLET) && (ready == 0))
2475 session->vep.et_mask |= EPOLLOUT;
2481 vppcom_select (unsigned long n_bits, unsigned long *read_map,
2482 unsigned long *write_map, unsigned long *except_map,
2483 double time_to_wait)
2485 vppcom_main_t *vcm = &vppcom_main;
2487 session_t *session = 0;
2488 int rv, bits_set = 0;
2489 f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
2490 u32 minbits = clib_max (n_bits, BITS (uword));
2492 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
2494 if (n_bits && read_map)
2496 clib_bitmap_validate (vcm->rd_bitmap, minbits);
2497 clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
2498 memset (read_map, 0, vec_len (vcm->rd_bitmap));
2500 if (n_bits && write_map)
2502 clib_bitmap_validate (vcm->wr_bitmap, minbits);
2503 clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
2504 memset (write_map, 0, vec_len (vcm->wr_bitmap));
2506 if (n_bits && except_map)
2508 clib_bitmap_validate (vcm->ex_bitmap, minbits);
2509 clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
2510 memset (except_map, 0, vec_len (vcm->ex_bitmap));
2520 clib_bitmap_foreach (session_index, vcm->rd_bitmap,
2522 clib_spinlock_lock (&vcm->sessions_lockp);
2523 rv = vppcom_session_at_index (session_index, &session);
2526 clib_spinlock_unlock (&vcm->sessions_lockp);
2527 if (VPPCOM_DEBUG > 1)
2528 clib_warning ("[%d] session %d specified in "
2529 "read_map is closed.", vcm->my_pid,
2531 bits_set = VPPCOM_EBADFD;
2535 rv = vppcom_session_read_ready (session, session_index);
2536 clib_spinlock_unlock (&vcm->sessions_lockp);
2537 if (except_map && vcm->ex_bitmap &&
2538 clib_bitmap_get (vcm->ex_bitmap, session_index) &&
2541 // TBD: clib_warning
2542 clib_bitmap_set_no_check (except_map, session_index, 1);
2547 // TBD: clib_warning
2548 clib_bitmap_set_no_check (read_map, session_index, 1);
2556 clib_bitmap_foreach (session_index, vcm->wr_bitmap,
2558 clib_spinlock_lock (&vcm->sessions_lockp);
2559 rv = vppcom_session_at_index (session_index, &session);
2562 clib_spinlock_unlock (&vcm->sessions_lockp);
2563 if (VPPCOM_DEBUG > 0)
2564 clib_warning ("[%d] session %d specified in "
2565 "write_map is closed.", vcm->my_pid,
2567 bits_set = VPPCOM_EBADFD;
2571 rv = vppcom_session_write_ready (session, session_index);
2572 clib_spinlock_unlock (&vcm->sessions_lockp);
2573 if (write_map && (rv > 0))
2575 // TBD: clib_warning
2576 clib_bitmap_set_no_check (write_map, session_index, 1);
2584 clib_bitmap_foreach (session_index, vcm->ex_bitmap,
2586 clib_spinlock_lock (&vcm->sessions_lockp);
2587 rv = vppcom_session_at_index (session_index, &session);
2590 clib_spinlock_unlock (&vcm->sessions_lockp);
2591 if (VPPCOM_DEBUG > 1)
2592 clib_warning ("[%d] session %d specified in "
2593 "except_map is closed.", vcm->my_pid,
2595 bits_set = VPPCOM_EBADFD;
2599 rv = vppcom_session_read_ready (session, session_index);
2600 clib_spinlock_unlock (&vcm->sessions_lockp);
2603 // TBD: clib_warning
2604 clib_bitmap_set_no_check (except_map, session_index, 1);
2612 while (clib_time_now (&vcm->clib_time) < timeout);
2619 vep_verify_epoll_chain (u32 vep_idx)
2622 vppcom_epoll_t *vep;
2626 if (VPPCOM_DEBUG < 1)
2629 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2630 rv = vppcom_session_at_index (vep_idx, &session);
2631 if (PREDICT_FALSE (rv))
2633 clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
2636 if (PREDICT_FALSE (!session->is_vep))
2638 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
2641 if (VPPCOM_DEBUG > 1)
2642 clib_warning ("vep_idx (%u): Dumping epoll chain\n"
2645 " is_vep_session = %u\n"
2646 " wait_cont_idx = 0x%x (%u)\n"
2648 vep_idx, session->is_vep, session->is_vep_session,
2649 session->wait_cont_idx, session->wait_cont_idx);
2652 vep = &session->vep;
2653 sid = vep->next_sid;
2654 if (session->is_vep_session)
2656 if (VPPCOM_DEBUG > 1)
2657 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2659 " next_sid = 0x%x (%u)\n"
2660 " prev_sid = 0x%x (%u)\n"
2661 " vep_idx = 0x%x (%u)\n"
2662 " ev.events = 0x%x\n"
2663 " ev.data.u64 = 0x%llx\n"
2667 vep->next_sid, vep->next_sid,
2668 vep->prev_sid, vep->prev_sid,
2669 vep->vep_idx, vep->vep_idx,
2670 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2674 rv = vppcom_session_at_index (sid, &session);
2675 if (PREDICT_FALSE (rv))
2677 clib_warning ("ERROR: Invalid sid (%u)!", sid);
2680 if (PREDICT_FALSE (session->is_vep))
2681 clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
2682 else if (PREDICT_FALSE (!session->is_vep_session))
2684 clib_warning ("ERROR: session (%u) is not a vep session!", sid);
2687 if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2688 clib_warning ("ERROR: session (%u) vep_idx (%u) != "
2690 sid, session->vep.vep_idx, vep_idx);
2696 if (VPPCOM_DEBUG > 1)
2697 clib_warning ("vep_idx (%u): Dump complete!", vep_idx);
2701 vppcom_epoll_create (void)
2703 vppcom_main_t *vcm = &vppcom_main;
2704 session_t *vep_session;
2707 clib_spinlock_lock (&vcm->sessions_lockp);
2708 pool_get (vcm->sessions, vep_session);
2709 memset (vep_session, 0, sizeof (*vep_session));
2710 vep_idx = vep_session - vcm->sessions;
2712 vep_session->is_vep = 1;
2713 vep_session->vep.vep_idx = ~0;
2714 vep_session->vep.next_sid = ~0;
2715 vep_session->vep.prev_sid = ~0;
2716 vep_session->wait_cont_idx = ~0;
2717 clib_spinlock_unlock (&vcm->sessions_lockp);
2719 if (VPPCOM_DEBUG > 0)
2720 clib_warning ("Created vep_idx %u!", vep_idx);
2726 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
2727 struct epoll_event *event)
2729 vppcom_main_t *vcm = &vppcom_main;
2730 session_t *vep_session;
2734 if (vep_idx == session_index)
2736 if (VPPCOM_DEBUG > 0)
2737 clib_warning ("ERROR: vep_idx == session_index (%u)!", vep_idx);
2738 return VPPCOM_EINVAL;
2741 clib_spinlock_lock (&vcm->sessions_lockp);
2742 rv = vppcom_session_at_index (vep_idx, &vep_session);
2743 if (PREDICT_FALSE (rv))
2745 if (VPPCOM_DEBUG > 0)
2746 clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
2749 if (PREDICT_FALSE (!vep_session->is_vep))
2751 if (VPPCOM_DEBUG > 0)
2752 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
2757 ASSERT (vep_session->vep.vep_idx == ~0);
2758 ASSERT (vep_session->vep.prev_sid == ~0);
2760 rv = vppcom_session_at_index (session_index, &session);
2761 if (PREDICT_FALSE (rv))
2763 if (VPPCOM_DEBUG > 0)
2764 clib_warning ("ERROR: Invalid session_index (%u)!", session_index);
2767 if (PREDICT_FALSE (session->is_vep))
2769 if (VPPCOM_DEBUG > 0)
2770 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
2778 if (PREDICT_FALSE (!event))
2780 clib_warning ("NULL pointer to epoll_event structure!");
2784 if (vep_session->vep.next_sid != ~0)
2786 session_t *next_session;
2787 rv = vppcom_session_at_index (vep_session->vep.next_sid,
2789 if (PREDICT_FALSE (rv))
2791 if (VPPCOM_DEBUG > 0)
2792 clib_warning ("EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on"
2793 " vep_idx (%u)!", vep_session->vep.next_sid,
2797 ASSERT (next_session->vep.prev_sid == vep_idx);
2798 next_session->vep.prev_sid = session_index;
2800 session->vep.next_sid = vep_session->vep.next_sid;
2801 session->vep.prev_sid = vep_idx;
2802 session->vep.vep_idx = vep_idx;
2803 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2804 session->vep.ev = *event;
2805 session->is_vep_session = 1;
2806 vep_session->vep.next_sid = session_index;
2807 if (VPPCOM_DEBUG > 1)
2808 clib_warning ("EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x,"
2809 " data 0x%llx!", vep_idx, session_index,
2810 event->events, event->data.u64);
2814 if (PREDICT_FALSE (!event))
2816 clib_warning ("NULL pointer to epoll_event structure!");
2820 if (PREDICT_FALSE (!session->is_vep_session &&
2821 (session->vep.vep_idx != vep_idx)))
2823 if (VPPCOM_DEBUG > 0)
2825 if (!session->is_vep_session)
2826 clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
2827 "a vep session!", session_index);
2829 clib_warning ("EPOLL_CTL_MOD: session (%u) vep_idx (%u) != "
2830 "vep_idx (%u)!", session_index,
2831 session->vep.vep_idx, vep_idx);
2836 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2837 session->vep.ev = *event;
2838 if (VPPCOM_DEBUG > 1)
2839 clib_warning ("EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2840 " data 0x%llx!", vep_idx, session_index,
2841 event->events, event->data.u64);
2845 if (PREDICT_FALSE (!session->is_vep_session &&
2846 (session->vep.vep_idx != vep_idx)))
2848 if (VPPCOM_DEBUG > 0)
2850 if (!session->is_vep_session)
2851 clib_warning ("EPOLL_CTL_DEL: session (%u) is not "
2852 "a vep session!", session_index);
2854 clib_warning ("EPOLL_CTL_DEL: session (%u) vep_idx (%u) != "
2855 "vep_idx (%u)!", session_index,
2856 session->vep.vep_idx, vep_idx);
2862 vep_session->wait_cont_idx =
2863 (vep_session->wait_cont_idx == session_index) ?
2864 session->vep.next_sid : vep_session->wait_cont_idx;
2866 if (session->vep.prev_sid == vep_idx)
2867 vep_session->vep.next_sid = session->vep.next_sid;
2870 session_t *prev_session;
2871 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
2872 if (PREDICT_FALSE (rv))
2874 if (VPPCOM_DEBUG > 0)
2875 clib_warning ("EPOLL_CTL_DEL: Invalid vep.prev_sid (%u) on"
2876 " sid (%u)!", session->vep.prev_sid,
2880 ASSERT (prev_session->vep.next_sid == session_index);
2881 prev_session->vep.next_sid = session->vep.next_sid;
2883 if (session->vep.next_sid != ~0)
2885 session_t *next_session;
2886 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
2887 if (PREDICT_FALSE (rv))
2889 if (VPPCOM_DEBUG > 0)
2890 clib_warning ("EPOLL_CTL_DEL: Invalid vep.next_sid (%u) on"
2891 " sid (%u)!", session->vep.next_sid,
2895 ASSERT (next_session->vep.prev_sid == session_index);
2896 next_session->vep.prev_sid = session->vep.prev_sid;
2899 memset (&session->vep, 0, sizeof (session->vep));
2900 session->vep.next_sid = ~0;
2901 session->vep.prev_sid = ~0;
2902 session->vep.vep_idx = ~0;
2903 session->is_vep_session = 0;
2904 if (VPPCOM_DEBUG > 1)
2905 clib_warning ("EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_idx,
2910 clib_warning ("Invalid operation (%d)!", op);
2914 vep_verify_epoll_chain (vep_idx);
2917 clib_spinlock_unlock (&vcm->sessions_lockp);
2921 #define VCL_LOCK_AND_GET_SESSION(I, S) \
2923 vppcom_main_t *vcm = &vppcom_main; \
2925 clib_spinlock_lock (&vcm->sessions_lockp); \
2926 rv = vppcom_session_at_index (I, S); \
2927 if (PREDICT_FALSE (rv)) \
2929 clib_spinlock_unlock (&vcm->sessions_lockp); \
2931 if (VPPCOM_DEBUG > 0) \
2932 clib_warning ("ERROR: Invalid ##I (%u)!", I); \
2939 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
2940 int maxevents, double wait_for_time)
2942 vppcom_main_t *vcm = &vppcom_main;
2943 session_t *vep_session;
2945 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
2947 u32 vep_next_sid, wait_cont_idx;
2950 if (PREDICT_FALSE (maxevents <= 0))
2952 if (VPPCOM_DEBUG > 0)
2953 clib_warning ("ERROR: Invalid maxevents (%d)!", maxevents);
2954 return VPPCOM_EINVAL;
2956 if (PREDICT_FALSE (wait_for_time < 0))
2958 if (VPPCOM_DEBUG > 0)
2959 clib_warning ("ERROR: Invalid wait_for_time (%f)!", wait_for_time);
2960 return VPPCOM_EINVAL;
2962 memset (events, 0, sizeof (*events) * maxevents);
2964 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
2965 vep_next_sid = vep_session->vep.next_sid;
2966 is_vep = vep_session->is_vep;
2967 wait_cont_idx = vep_session->wait_cont_idx;
2968 clib_spinlock_unlock (&vcm->sessions_lockp);
2970 if (PREDICT_FALSE (!is_vep))
2972 if (VPPCOM_DEBUG > 0)
2973 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
2977 if ((VPPCOM_DEBUG > 0) && (PREDICT_FALSE (vep_next_sid == ~0)))
2979 clib_warning ("WARNING: vep_idx (%u) is empty!", vep_idx);
2989 for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
2990 sid != ~0; sid = next_sid)
2992 u32 session_events, et_mask, clear_et_mask, session_vep_idx;
2993 u8 add_event, is_vep_session;
2995 u64 session_ev_data;
2997 VCL_LOCK_AND_GET_SESSION (sid, &session);
2998 next_sid = session->vep.next_sid;
2999 session_events = session->vep.ev.events;
3000 et_mask = session->vep.et_mask;
3001 is_vep = session->is_vep;
3002 is_vep_session = session->is_vep_session;
3003 session_vep_idx = session->vep.vep_idx;
3004 session_ev_data = session->vep.ev.data.u64;
3005 clib_spinlock_unlock (&vcm->sessions_lockp);
3007 if (PREDICT_FALSE (is_vep))
3009 if (VPPCOM_DEBUG > 0)
3010 clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
3014 if (PREDICT_FALSE (!is_vep_session))
3016 if (VPPCOM_DEBUG > 0)
3017 clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
3018 "a vep session!", sid);
3022 if (PREDICT_FALSE (session_vep_idx != vep_idx))
3024 clib_warning ("EPOLL_CTL_MOD: session (%u) "
3025 "vep_idx (%u) != vep_idx (%u)!",
3026 sid, session->vep.vep_idx, vep_idx);
3031 add_event = clear_et_mask = 0;
3033 if ((EPOLLIN & session_events) && (EPOLLIN & et_mask))
3035 VCL_LOCK_AND_GET_SESSION (sid, &session);
3036 ready = vppcom_session_read_ready (session, sid);
3037 clib_spinlock_unlock (&vcm->sessions_lockp);
3041 events[num_ev].events |= EPOLLIN;
3042 if (EPOLLET & session_events)
3043 clear_et_mask |= EPOLLIN;
3050 case VPPCOM_ECONNRESET:
3051 events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
3055 events[num_ev].events |= EPOLLERR;
3061 if ((EPOLLOUT & session_events) && (EPOLLOUT & et_mask))
3063 VCL_LOCK_AND_GET_SESSION (sid, &session);
3064 ready = vppcom_session_write_ready (session, sid);
3065 clib_spinlock_unlock (&vcm->sessions_lockp);
3069 events[num_ev].events |= EPOLLOUT;
3070 if (EPOLLET & session_events)
3071 clear_et_mask |= EPOLLOUT;
3078 case VPPCOM_ECONNRESET:
3079 events[num_ev].events |= EPOLLHUP;
3083 events[num_ev].events |= EPOLLERR;
3091 events[num_ev].data.u64 = session_ev_data;
3092 if (EPOLLONESHOT & session_events)
3094 VCL_LOCK_AND_GET_SESSION (sid, &session);
3095 session->vep.ev.events = 0;
3096 clib_spinlock_unlock (&vcm->sessions_lockp);
3099 if (num_ev == maxevents)
3101 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3102 vep_session->wait_cont_idx = next_sid;
3103 clib_spinlock_unlock (&vcm->sessions_lockp);
3107 if (wait_cont_idx != ~0)
3110 next_sid = vep_next_sid;
3111 else if (next_sid == wait_cont_idx)
3116 while ((num_ev == 0) && (clib_time_now (&vcm->clib_time) <= timeout));
3118 if (wait_cont_idx != ~0)
3120 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3121 vep_session->wait_cont_idx = ~0;
3122 clib_spinlock_unlock (&vcm->sessions_lockp);
3125 return (rv != VPPCOM_OK) ? rv : num_ev;
3129 vppcom_session_attr (uint32_t session_index, uint32_t op,
3130 void *buffer, uint32_t * buflen)
3132 vppcom_main_t *vcm = &vppcom_main;
3135 u32 *flags = buffer;
3136 vppcom_endpt_t *ep = buffer;
3138 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3141 case VPPCOM_ATTR_GET_NREAD:
3142 rv = vppcom_session_read_ready (session, session_index);
3143 if (VPPCOM_DEBUG > 0)
3144 clib_warning ("VPPCOM_ATTR_GET_NREAD: nread = %d", rv);
3148 case VPPCOM_ATTR_PEEK_NREAD:
3152 case VPPCOM_ATTR_GET_FLAGS:
3153 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3155 *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0);
3156 *buflen = sizeof (*flags);
3157 if (VPPCOM_DEBUG > 0)
3158 clib_warning ("VPPCOM_ATTR_GET_FLAGS: flags = 0x%08x, "
3159 "is_nonblocking = %u", *flags,
3160 session->is_nonblocking);
3166 case VPPCOM_ATTR_SET_FLAGS:
3167 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3169 session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0;
3170 if (VPPCOM_DEBUG > 0)
3171 clib_warning ("VPPCOM_ATTR_SET_FLAGS: flags = 0x%08x, "
3172 "is_nonblocking = %u", *flags,
3173 session->is_nonblocking);
3179 case VPPCOM_ATTR_GET_PEER_ADDR:
3180 if (buffer && buflen && (*buflen >= sizeof (*ep)))
3182 ep->vrf = session->vrf;
3183 ep->is_ip4 = session->peer_addr.is_ip4;
3184 ep->port = session->port;
3185 if (session->peer_addr.is_ip4)
3186 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3187 sizeof (ip4_address_t));
3189 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3190 sizeof (ip6_address_t));
3191 *buflen = sizeof (*ep);
3192 if (VPPCOM_DEBUG > 0)
3193 clib_warning ("VPPCOM_ATTR_GET_PEER_ADDR: is_ip4 = %u, "
3194 "addr = %U", ep->is_ip4, format_ip46_address,
3195 &session->peer_addr.ip46, ep->is_ip4);
3201 case VPPCOM_ATTR_GET_LCL_ADDR:
3202 if (buffer && buflen && (*buflen >= sizeof (*ep)))
3204 ep->vrf = session->vrf;
3205 ep->is_ip4 = session->lcl_addr.is_ip4;
3206 ep->port = session->port;
3207 if (session->lcl_addr.is_ip4)
3208 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4,
3209 sizeof (ip4_address_t));
3211 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6,
3212 sizeof (ip6_address_t));
3213 *buflen = sizeof (*ep);
3214 if (VPPCOM_DEBUG > 0)
3215 if (VPPCOM_DEBUG > 0)
3216 clib_warning ("VPPCOM_ATTR_GET_LCL_ADDR: is_ip4 = %u, "
3217 "addr = %U", ep->is_ip4, format_ip46_address,
3218 &session->lcl_addr.ip46, ep->is_ip4);
3224 case VPPCOM_ATTR_SET_REUSEADDR:
3227 case VPPCOM_ATTR_SET_BROADCAST:
3230 case VPPCOM_ATTR_SET_V6ONLY:
3233 case VPPCOM_ATTR_SET_KEEPALIVE:
3236 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3239 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3248 clib_spinlock_unlock (&vcm->sessions_lockp);
3253 * fd.io coding-style-patch-verification: ON
3256 * eval: (c-set-style "gnu")