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 <vcl/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;
112 u16 lcl_port; // network order
113 u16 peer_port; // network order
115 u64 client_queue_address;
119 typedef struct vppcom_cfg_t_
124 u32 add_segment_size;
125 u32 preallocated_fifo_pairs;
128 u32 event_queue_size;
129 u32 listen_queue_size;
135 typedef struct vppcom_main_t_
138 u32 *client_session_index_fifo;
139 volatile u32 bind_session_index;
142 /* vpe input queue */
143 unix_shared_memory_queue_t *vl_input_queue;
145 /* API client handle */
149 clib_spinlock_t sessions_lockp;
152 /* Hash table for disconnect processing */
153 uword *session_index_by_vpp_handles;
156 clib_bitmap_t *rd_bitmap;
157 clib_bitmap_t *wr_bitmap;
158 clib_bitmap_t *ex_bitmap;
160 /* Our event queue */
161 unix_shared_memory_queue_t *app_event_queue;
163 /* unique segment name counter */
164 u32 unique_segment_index;
168 /* For deadman timers */
169 clib_time_t clib_time;
171 /* State of the connection, shared between msg RX thread and main thread */
172 volatile app_state_t app_state;
176 /* VNET_API_ERROR_FOO -> "Foo" hash table */
177 uword *error_string_by_error_number;
180 vppcom_main_t vppcom_main = {.my_client_index = ~0 };
183 vppcom_app_state_str (app_state_t state)
189 case STATE_APP_START:
190 st = "STATE_APP_START";
193 case STATE_APP_CONN_VPP:
194 st = "STATE_APP_CONN_VPP";
197 case STATE_APP_ENABLED:
198 st = "STATE_APP_ENABLED";
201 case STATE_APP_ATTACHED:
202 st = "STATE_APP_ATTACHED";
206 st = "UNKNOWN_APP_STATE";
214 vppcom_session_state_str (session_state_t state)
225 st = "STATE_CONNECT";
236 case STATE_DISCONNECT:
237 st = "STATE_DISCONNECT";
245 st = "UNKNOWN_STATE";
253 * VPPCOM Utility Functions
256 vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
258 vppcom_main_t *vcm = &vppcom_main;
260 /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */
261 if (PREDICT_FALSE ((session_index == ~0) ||
262 pool_is_free_index (vcm->sessions, session_index)))
264 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
265 vcm->my_pid, session_index);
266 return VPPCOM_EBADFD;
268 *sess = pool_elt_at_index (vcm->sessions, session_index);
273 vppcom_connect_to_vpp (char *app_name)
275 api_main_t *am = &api_main;
276 vppcom_main_t *vcm = &vppcom_main;
278 if (VPPCOM_DEBUG > 0)
279 printf ("\nConnecting to VPP api...");
280 if (vl_client_connect_to_vlib ("/vpe-api", app_name, 32) < 0)
282 clib_warning ("[%d] connect to vpp (%s) failed!",
283 vcm->my_pid, app_name);
284 return VPPCOM_ECONNREFUSED;
287 vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
288 vcm->my_client_index = am->my_client_index;
289 if (VPPCOM_DEBUG > 0)
290 printf (" connected!\n");
292 vcm->app_state = STATE_APP_CONN_VPP;
297 format_api_error (u8 * s, va_list * args)
299 vppcom_main_t *vcm = &vppcom_main;
300 i32 error = va_arg (*args, u32);
303 p = hash_get (vcm->error_string_by_error_number, -error);
306 s = format (s, "%s (%d)", p[0], error);
308 s = format (s, "%d", error);
313 vppcom_init_error_string_table (void)
315 vppcom_main_t *vcm = &vppcom_main;
317 vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
319 #define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s);
320 foreach_vnet_api_error;
323 hash_set (vcm->error_string_by_error_number, 99, "Misc");
327 vppcom_wait_for_app_state_change (app_state_t app_state)
329 vppcom_main_t *vcm = &vppcom_main;
330 f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
332 while (clib_time_now (&vcm->clib_time) < timeout)
334 if (vcm->app_state == app_state)
337 if (VPPCOM_DEBUG > 0)
338 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
339 vppcom_app_state_str (app_state), app_state);
340 return VPPCOM_ETIMEDOUT;
344 vppcom_wait_for_session_state_change (u32 session_index,
345 session_state_t state,
348 vppcom_main_t *vcm = &vppcom_main;
349 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
350 session_t *volatile session;
355 clib_spinlock_lock (&vcm->sessions_lockp);
356 rv = vppcom_session_at_index (session_index, &session);
357 if (PREDICT_FALSE (rv))
359 clib_spinlock_unlock (&vcm->sessions_lockp);
362 if (session->state == state)
364 clib_spinlock_unlock (&vcm->sessions_lockp);
367 clib_spinlock_unlock (&vcm->sessions_lockp);
369 while (clib_time_now (&vcm->clib_time) < timeout);
371 if (VPPCOM_DEBUG > 0)
372 clib_warning ("[%d] timeout waiting for state %s (%d)", vcm->my_pid,
373 vppcom_session_state_str (state), state);
374 return VPPCOM_ETIMEDOUT;
378 vppcom_wait_for_client_session_index (f64 wait_for_time)
380 vppcom_main_t *vcm = &vppcom_main;
381 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
385 if (clib_fifo_elts (vcm->client_session_index_fifo))
388 while (clib_time_now (&vcm->clib_time) < timeout);
390 if (wait_for_time == 0)
391 return VPPCOM_EAGAIN;
393 if (VPPCOM_DEBUG > 0)
394 clib_warning ("[%d] timeout waiting for client_session_index",
396 return VPPCOM_ETIMEDOUT;
400 * VPP-API message functions
403 vppcom_send_session_enable_disable (u8 is_enable)
405 vppcom_main_t *vcm = &vppcom_main;
406 vl_api_session_enable_disable_t *bmp;
407 bmp = vl_msg_api_alloc (sizeof (*bmp));
408 memset (bmp, 0, sizeof (*bmp));
410 bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE);
411 bmp->client_index = vcm->my_client_index;
412 bmp->context = htonl (0xfeedface);
413 bmp->is_enable = is_enable;
414 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
418 vppcom_app_session_enable (void)
420 vppcom_main_t *vcm = &vppcom_main;
423 if (vcm->app_state != STATE_APP_ENABLED)
425 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
426 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
427 if (PREDICT_FALSE (rv))
429 if (VPPCOM_DEBUG > 0)
430 clib_warning ("[%d] Session enable timed out, rv = %s (%d)",
431 vcm->my_pid, vppcom_retval_str (rv), rv);
439 vl_api_session_enable_disable_reply_t_handler
440 (vl_api_session_enable_disable_reply_t * mp)
442 vppcom_main_t *vcm = &vppcom_main;
446 clib_warning ("[%d] session_enable_disable failed: %U", vcm->my_pid,
447 format_api_error, ntohl (mp->retval));
450 vcm->app_state = STATE_APP_ENABLED;
454 vppcom_app_send_attach (void)
456 vppcom_main_t *vcm = &vppcom_main;
457 vl_api_application_attach_t *bmp;
458 bmp = vl_msg_api_alloc (sizeof (*bmp));
459 memset (bmp, 0, sizeof (*bmp));
461 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
462 bmp->client_index = vcm->my_client_index;
463 bmp->context = htonl (0xfeedface);
464 bmp->options[APP_OPTIONS_FLAGS] =
465 APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
466 APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE | APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
467 bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
468 bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
469 bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
470 bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
471 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
475 vppcom_app_attach (void)
477 vppcom_main_t *vcm = &vppcom_main;
480 vppcom_app_send_attach ();
481 rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
482 if (PREDICT_FALSE (rv))
484 if (VPPCOM_DEBUG > 0)
485 clib_warning ("[%d] application attach timed out, rv = %s (%d)",
486 vcm->my_pid, vppcom_retval_str (rv), rv);
493 vppcom_app_detach (void)
495 vppcom_main_t *vcm = &vppcom_main;
496 vl_api_application_detach_t *bmp;
497 bmp = vl_msg_api_alloc (sizeof (*bmp));
498 memset (bmp, 0, sizeof (*bmp));
500 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
501 bmp->client_index = vcm->my_client_index;
502 bmp->context = htonl (0xfeedface);
503 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
507 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
510 vppcom_main_t *vcm = &vppcom_main;
511 static svm_fifo_segment_create_args_t _a;
512 svm_fifo_segment_create_args_t *a = &_a;
515 memset (a, 0, sizeof (*a));
518 clib_warning ("[%d] attach failed: %U", vcm->my_pid,
519 format_api_error, ntohl (mp->retval));
523 if (mp->segment_name_length == 0)
525 clib_warning ("[%d] segment_name_length zero", vcm->my_pid);
529 a->segment_name = (char *) mp->segment_name;
530 a->segment_size = mp->segment_size;
532 ASSERT (mp->app_event_queue_address);
534 /* Attach to the segment vpp created */
535 rv = svm_fifo_segment_attach (a);
536 vec_reset_length (a->new_segment_indices);
537 if (PREDICT_FALSE (rv))
539 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", vcm->my_pid,
544 vcm->app_event_queue =
545 uword_to_pointer (mp->app_event_queue_address,
546 unix_shared_memory_queue_t *);
548 vcm->app_state = STATE_APP_ATTACHED;
552 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
555 vppcom_main_t *vcm = &vppcom_main;
558 clib_warning ("[%d] detach failed: %U", vcm->my_pid, format_api_error,
561 vcm->app_state = STATE_APP_ENABLED;
565 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
568 vppcom_main_t *vcm = &vppcom_main;
571 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
574 session_t *session = 0;
576 clib_spinlock_lock (&vcm->sessions_lockp);
577 rv = vppcom_session_at_index (p[0], &session);
578 if (PREDICT_FALSE (rv))
580 if (VPPCOM_DEBUG > 1)
581 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
584 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
585 session->state = STATE_DISCONNECT;
586 clib_spinlock_unlock (&vcm->sessions_lockp);
590 if (VPPCOM_DEBUG > 1)
591 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
596 clib_warning ("[%d] disconnect_session failed: %U", vcm->my_pid,
597 format_api_error, ntohl (mp->retval));
601 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
603 vppcom_main_t *vcm = &vppcom_main;
604 static svm_fifo_segment_create_args_t _a;
605 svm_fifo_segment_create_args_t *a = &_a;
608 memset (a, 0, sizeof (*a));
609 a->segment_name = (char *) mp->segment_name;
610 a->segment_size = mp->segment_size;
611 /* Attach to the segment vpp created */
612 rv = svm_fifo_segment_attach (a);
613 vec_reset_length (a->new_segment_indices);
614 if (PREDICT_FALSE (rv))
616 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
617 vcm->my_pid, mp->segment_name);
620 if (VPPCOM_DEBUG > 1)
621 clib_warning ("[%d] mapped new segment '%s' size %d", vcm->my_pid,
622 mp->segment_name, mp->segment_size);
626 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
628 vppcom_main_t *vcm = &vppcom_main;
629 session_t *session = 0;
630 vl_api_disconnect_session_reply_t *rmp;
634 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
638 clib_spinlock_lock (&vcm->sessions_lockp);
639 rval = vppcom_session_at_index (p[0], &session);
640 if (PREDICT_FALSE (rval))
642 if (VPPCOM_DEBUG > 1)
643 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
647 pool_put (vcm->sessions, session);
648 clib_spinlock_unlock (&vcm->sessions_lockp);
649 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
653 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
658 rmp = vl_msg_api_alloc (sizeof (*rmp));
659 memset (rmp, 0, sizeof (*rmp));
661 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
662 rmp->retval = htonl (rv);
663 rmp->handle = mp->handle;
664 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
668 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
670 vppcom_main_t *vcm = &vppcom_main;
671 session_t *session = 0;
672 vl_api_reset_session_reply_t *rmp;
676 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
680 clib_spinlock_lock (&vcm->sessions_lockp);
681 rval = vppcom_session_at_index (p[0], &session);
682 if (PREDICT_FALSE (rval))
684 if (VPPCOM_DEBUG > 1)
685 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
689 pool_put (vcm->sessions, session);
690 clib_spinlock_unlock (&vcm->sessions_lockp);
691 hash_unset (vcm->session_index_by_vpp_handles, mp->handle);
695 clib_warning ("[%d] couldn't find session key %llx", vcm->my_pid,
700 rmp = vl_msg_api_alloc (sizeof (*rmp));
701 memset (rmp, 0, sizeof (*rmp));
702 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
703 rmp->retval = htonl (rv);
704 rmp->handle = mp->handle;
705 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
709 vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
711 vppcom_main_t *vcm = &vppcom_main;
714 svm_fifo_t *rx_fifo, *tx_fifo;
720 clib_warning ("[%d] connect failed: %U", vcm->my_pid, format_api_error,
725 session_index = mp->context;
726 if (VPPCOM_DEBUG > 1)
727 clib_warning ("[%d] session_index = %d 0x%08x", vcm->my_pid,
728 session_index, session_index);
730 clib_spinlock_lock (&vcm->sessions_lockp);
731 if (pool_is_free_index (vcm->sessions, session_index))
733 clib_spinlock_unlock (&vcm->sessions_lockp);
734 if (VPPCOM_DEBUG > 1)
735 clib_warning ("[%d] invalid session, sid %d is closed!",
736 vcm->my_pid, session_index);
740 /* We've been redirected */
741 if (mp->segment_name_length > 0)
743 static svm_fifo_segment_create_args_t _a;
744 svm_fifo_segment_create_args_t *a = &_a;
747 memset (a, 0, sizeof (*a));
748 a->segment_name = (char *) mp->segment_name;
749 if (VPPCOM_DEBUG > 1)
750 clib_warning ("[%d] cut-thru segment: %s", vcm->my_pid,
752 rv = svm_fifo_segment_attach (a);
753 vec_reset_length (a->new_segment_indices);
754 if (PREDICT_FALSE (rv))
756 clib_spinlock_unlock (&vcm->sessions_lockp);
757 clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
758 vcm->my_pid, a->segment_name);
766 if (VPPCOM_DEBUG > 1)
767 clib_warning ("[%d] client sid %d", vcm->my_pid, session_index);
769 session = pool_elt_at_index (vcm->sessions, session_index);
770 session->is_cut_thru = is_cut_thru;
771 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
772 unix_shared_memory_queue_t *);
774 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
775 rx_fifo->client_session_index = session_index;
776 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
777 tx_fifo->client_session_index = session_index;
779 session->server_rx_fifo = rx_fifo;
780 session->server_tx_fifo = tx_fifo;
781 session->vpp_session_handle = mp->handle;
782 session->state = STATE_CONNECT;
784 /* Add it to lookup table */
785 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
786 clib_spinlock_unlock (&vcm->sessions_lockp);
790 vppcom_send_connect_sock (session_t * session, u32 session_index)
792 vppcom_main_t *vcm = &vppcom_main;
793 vl_api_connect_sock_t *cmp;
795 /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
796 session->is_server = 0;
797 cmp = vl_msg_api_alloc (sizeof (*cmp));
798 memset (cmp, 0, sizeof (*cmp));
799 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
800 cmp->client_index = vcm->my_client_index;
801 cmp->context = session_index;
803 if (VPPCOM_DEBUG > 1)
804 clib_warning ("[%d] session_index = %d 0x%08x",
805 vcm->my_pid, session_index, session_index);
807 cmp->vrf = session->vrf;
808 cmp->is_ip4 = session->peer_addr.is_ip4;
809 clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip));
810 cmp->port = session->peer_port;
811 cmp->proto = session->proto;
812 clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
813 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
817 vppcom_send_disconnect (u32 session_index)
819 vppcom_main_t *vcm = &vppcom_main;
820 vl_api_disconnect_session_t *dmp;
821 session_t *session = 0;
824 clib_spinlock_lock (&vcm->sessions_lockp);
825 rv = vppcom_session_at_index (session_index, &session);
826 if (PREDICT_FALSE (rv))
828 clib_spinlock_unlock (&vcm->sessions_lockp);
829 if (VPPCOM_DEBUG > 1)
830 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
831 vcm->my_pid, session_index);
835 dmp = vl_msg_api_alloc (sizeof (*dmp));
836 memset (dmp, 0, sizeof (*dmp));
837 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
838 dmp->client_index = vcm->my_client_index;
839 dmp->handle = session->vpp_session_handle;
840 clib_spinlock_unlock (&vcm->sessions_lockp);
841 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
846 vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
848 vppcom_main_t *vcm = &vppcom_main;
849 session_t *session = 0;
853 clib_warning ("[%d] bind failed: %U", vcm->my_pid, format_api_error,
856 ASSERT (vcm->bind_session_index != ~0);
858 clib_spinlock_lock (&vcm->sessions_lockp);
859 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
862 session->vpp_session_handle = mp->handle;
863 hash_set (vcm->session_index_by_vpp_handles, mp->handle,
864 vcm->bind_session_index);
865 session->state = mp->retval ? STATE_FAILED : STATE_LISTEN;
866 vcm->bind_session_index = ~0;
868 clib_spinlock_unlock (&vcm->sessions_lockp);
872 vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
874 vppcom_main_t *vcm = &vppcom_main;
875 session_t *session = 0;
878 clib_spinlock_lock (&vcm->sessions_lockp);
879 rv = vppcom_session_at_index (vcm->bind_session_index, &session);
882 if ((VPPCOM_DEBUG > 1) && (mp->retval))
883 clib_warning ("[%d] unbind failed: %U", vcm->my_pid, format_api_error,
886 vcm->bind_session_index = ~0;
887 session->state = STATE_START;
889 clib_spinlock_unlock (&vcm->sessions_lockp);
893 format_ip4_address (u8 * s, va_list * args)
895 u8 *a = va_arg (*args, u8 *);
896 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
900 format_ip6_address (u8 * s, va_list * args)
902 ip6_address_t *a = va_arg (*args, ip6_address_t *);
903 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
905 i_max_n_zero = ARRAY_LEN (a->as_u16);
907 i_first_zero = i_max_n_zero;
909 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
911 u32 is_zero = a->as_u16[i] == 0;
912 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
918 if ((!is_zero && n_zeros > max_n_zeros)
919 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
921 i_max_n_zero = i_first_zero;
922 max_n_zeros = n_zeros;
923 i_first_zero = ARRAY_LEN (a->as_u16);
928 last_double_colon = 0;
929 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
931 if (i == i_max_n_zero && max_n_zeros > 1)
933 s = format (s, "::");
934 i += max_n_zeros - 1;
935 last_double_colon = 1;
939 s = format (s, "%s%x",
940 (last_double_colon || i == 0) ? "" : ":",
941 clib_net_to_host_u16 (a->as_u16[i]));
942 last_double_colon = 0;
949 /* Format an IP46 address. */
951 format_ip46_address (u8 * s, va_list * args)
953 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
954 ip46_type_t type = va_arg (*args, ip46_type_t);
960 is_ip4 = ip46_address_is_ip4 (ip46);
971 format (s, "%U", format_ip4_address, &ip46->ip4) :
972 format (s, "%U", format_ip6_address, &ip46->ip6);
976 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
978 vppcom_main_t *vcm = &vppcom_main;
979 vl_api_accept_session_reply_t *rmp;
980 svm_fifo_t *rx_fifo, *tx_fifo;
985 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
987 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
988 rv = VNET_API_ERROR_QUEUE_FULL;
992 if (VPPCOM_DEBUG > 1)
994 u8 *ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
995 clib_warning ("[%d] accepted session from: %s:%d", vcm->my_pid, ip_str,
996 clib_net_to_host_u16 (mp->port));
1000 clib_spinlock_lock (&vcm->sessions_lockp);
1001 /* Allocate local session and set it up */
1002 pool_get (vcm->sessions, session);
1003 memset (session, 0, sizeof (*session));
1004 session_index = session - vcm->sessions;
1006 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
1007 rx_fifo->client_session_index = session_index;
1008 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
1009 tx_fifo->client_session_index = session_index;
1011 session->server_rx_fifo = rx_fifo;
1012 session->server_tx_fifo = tx_fifo;
1013 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
1014 unix_shared_memory_queue_t *);
1015 session->state = STATE_ACCEPT;
1016 session->is_cut_thru = 0;
1017 session->is_server = 1;
1018 session->peer_port = mp->port;
1019 session->peer_addr.is_ip4 = mp->is_ip4;
1020 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1021 sizeof (session->peer_addr.ip46));
1023 /* Add it to lookup table */
1024 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
1026 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1027 clib_spinlock_unlock (&vcm->sessions_lockp);
1030 * Send accept reply to vpp
1033 rmp = vl_msg_api_alloc (sizeof (*rmp));
1034 memset (rmp, 0, sizeof (*rmp));
1035 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1036 rmp->retval = htonl (rv);
1037 rmp->handle = mp->handle;
1038 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1042 * Acting as server for redirected connect requests
1045 vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
1047 static svm_fifo_segment_create_args_t _a;
1048 svm_fifo_segment_create_args_t *a = &_a;
1049 vppcom_main_t *vcm = &vppcom_main;
1051 svm_fifo_segment_private_t *seg;
1052 unix_shared_memory_queue_t *client_q;
1053 vl_api_connect_session_reply_t *rmp;
1054 session_t *session = 0;
1056 svm_fifo_t *rx_fifo;
1057 svm_fifo_t *tx_fifo;
1058 unix_shared_memory_queue_t *event_q = 0;
1060 clib_spinlock_lock (&vcm->sessions_lockp);
1061 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1063 if (VPPCOM_DEBUG > 1)
1064 clib_warning ("[%d] client session queue is full!", vcm->my_pid);
1065 rv = VNET_API_ERROR_QUEUE_FULL;
1066 clib_spinlock_unlock (&vcm->sessions_lockp);
1070 /* Create the segment */
1071 memset (a, 0, sizeof (*a));
1072 a->segment_name = (char *) format ((u8 *) a->segment_name, "%d:segment%d%c",
1073 vcm->my_pid, vcm->unique_segment_index++,
1075 a->segment_size = vcm->cfg.segment_size;
1076 a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
1077 a->rx_fifo_size = vcm->cfg.rx_fifo_size;
1078 a->tx_fifo_size = vcm->cfg.tx_fifo_size;
1080 rv = svm_fifo_segment_create (a);
1081 if (PREDICT_FALSE (rv))
1083 if (VPPCOM_DEBUG > 1)
1084 clib_warning ("[%d] svm_fifo_segment_create ('%s') failed",
1085 vcm->my_pid, a->segment_name);
1086 vec_reset_length (a->new_segment_indices);
1087 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1091 if (VPPCOM_DEBUG > 1)
1092 clib_warning ("[%d] created segment '%s'", vcm->my_pid, a->segment_name);
1094 pool_get (vcm->sessions, session);
1095 memset (session, 0, sizeof (*session));
1096 session_index = session - vcm->sessions;
1098 session->sm_seg_index = a->new_segment_indices[0];
1099 vec_reset_length (a->new_segment_indices);
1101 seg = svm_fifo_segment_get_segment (session->sm_seg_index);
1102 rx_fifo = session->server_rx_fifo =
1103 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
1104 FIFO_SEGMENT_RX_FREELIST);
1105 if (PREDICT_FALSE (!session->server_rx_fifo))
1107 svm_fifo_segment_delete (seg);
1108 clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)",
1109 vcm->my_pid, vcm->cfg.rx_fifo_size,
1110 vcm->cfg.rx_fifo_size);
1111 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1112 clib_spinlock_unlock (&vcm->sessions_lockp);
1116 tx_fifo = session->server_tx_fifo =
1117 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
1118 FIFO_SEGMENT_TX_FREELIST);
1119 if (PREDICT_FALSE (!session->server_tx_fifo))
1121 svm_fifo_segment_delete (seg);
1122 if (VPPCOM_DEBUG > 1)
1123 clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)",
1124 vcm->my_pid, vcm->cfg.tx_fifo_size,
1125 vcm->cfg.tx_fifo_size);
1126 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
1127 clib_spinlock_unlock (&vcm->sessions_lockp);
1131 session->server_rx_fifo->master_session_index = session_index;
1132 session->server_tx_fifo->master_session_index = session_index;
1133 session->client_queue_address = mp->client_queue_address;
1134 session->is_cut_thru = 1;
1135 session->is_server = 1;
1136 session->peer_port = mp->port;
1137 session->peer_addr.is_ip4 = mp->is_ip4;
1138 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1139 sizeof (session->peer_addr.ip46));
1142 ssvm_shared_header_t *sh = seg->ssvm.sh;
1144 ssvm_lock_non_recursive (sh, 1);
1145 oldheap = ssvm_push_heap (sh);
1146 event_q = session->vpp_event_queue =
1147 unix_shared_memory_queue_init (vcm->cfg.event_queue_size,
1148 sizeof (session_fifo_event_t),
1149 vcm->my_pid, 0 /* signal not sent */ );
1150 ssvm_pop_heap (oldheap);
1151 ssvm_unlock_non_recursive (sh);
1154 session->state = STATE_ACCEPT;
1155 if (VPPCOM_DEBUG > 1)
1156 clib_warning ("[%d] Connected cut-thru to client: sid %d",
1157 vcm->my_pid, session_index);
1158 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1159 clib_spinlock_unlock (&vcm->sessions_lockp);
1162 rmp = vl_msg_api_alloc (sizeof (*rmp));
1163 memset (rmp, 0, sizeof (*rmp));
1165 rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
1166 rmp->context = mp->context;
1167 rmp->retval = htonl (rv);
1168 rmp->segment_name_length = vec_len (a->segment_name);
1169 clib_memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name));
1170 vec_reset_length (a->segment_name);
1174 rmp->vpp_event_queue_address = pointer_to_uword (event_q);
1175 rmp->server_rx_fifo = pointer_to_uword (rx_fifo);
1176 rmp->server_tx_fifo = pointer_to_uword (tx_fifo);
1179 uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *);
1182 vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
1186 vppcom_send_bind_sock (session_t * session)
1188 vppcom_main_t *vcm = &vppcom_main;
1189 vl_api_bind_sock_t *bmp;
1191 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1192 session->is_server = 1;
1193 bmp = vl_msg_api_alloc (sizeof (*bmp));
1194 memset (bmp, 0, sizeof (*bmp));
1196 bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
1197 bmp->client_index = vcm->my_client_index;
1198 bmp->context = htonl (0xfeedface);
1199 bmp->vrf = session->vrf;
1200 bmp->is_ip4 = session->lcl_addr.is_ip4;
1201 clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip));
1202 bmp->port = session->lcl_port;
1203 bmp->proto = session->proto;
1204 clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
1205 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
1209 vppcom_send_unbind_sock (u32 session_index)
1211 vppcom_main_t *vcm = &vppcom_main;
1212 vl_api_unbind_sock_t *ump;
1213 session_t *session = 0;
1216 clib_spinlock_lock (&vcm->sessions_lockp);
1217 rv = vppcom_session_at_index (session_index, &session);
1218 if (PREDICT_FALSE (rv))
1220 clib_spinlock_unlock (&vcm->sessions_lockp);
1221 if (VPPCOM_DEBUG > 0)
1222 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1223 vcm->my_pid, session_index);
1227 ump = vl_msg_api_alloc (sizeof (*ump));
1228 memset (ump, 0, sizeof (*ump));
1230 ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
1231 ump->client_index = vcm->my_client_index;
1232 ump->handle = session->vpp_session_handle;
1233 clib_spinlock_unlock (&vcm->sessions_lockp);
1234 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
1238 vppcom_session_unbind_cut_thru (session_t * session)
1240 svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
1241 svm_fifo_segment_private_t *seg;
1244 seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
1245 svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
1246 FIFO_SEGMENT_RX_FREELIST);
1247 svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
1248 FIFO_SEGMENT_TX_FREELIST);
1249 svm_fifo_segment_delete (seg);
1255 vppcom_session_unbind (u32 session_index)
1257 vppcom_main_t *vcm = &vppcom_main;
1260 clib_spinlock_lock (&vcm->sessions_lockp);
1261 if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index)))
1263 clib_spinlock_unlock (&vcm->sessions_lockp);
1264 if (VPPCOM_DEBUG > 1)
1265 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1266 vcm->my_pid, session_index);
1267 return VPPCOM_EBADFD;
1269 clib_spinlock_unlock (&vcm->sessions_lockp);
1271 vcm->bind_session_index = session_index;
1272 vppcom_send_unbind_sock (session_index);
1273 rv = vppcom_wait_for_session_state_change (session_index, STATE_START,
1274 vcm->cfg.session_timeout);
1275 if (PREDICT_FALSE (rv))
1277 vcm->bind_session_index = ~0;
1278 if (VPPCOM_DEBUG > 0)
1279 clib_warning ("[%d] server unbind timed out, rv = %s (%d)",
1280 vcm->my_pid, vppcom_retval_str (rv), rv);
1287 vppcom_session_disconnect (u32 session_index)
1289 vppcom_main_t *vcm = &vppcom_main;
1292 rv = vppcom_send_disconnect (session_index);
1293 if (PREDICT_FALSE (rv))
1296 rv = vppcom_wait_for_session_state_change (session_index, STATE_DISCONNECT,
1297 vcm->cfg.session_timeout);
1298 if (PREDICT_FALSE (rv))
1300 if (VPPCOM_DEBUG > 0)
1301 clib_warning ("[%d] client disconnect timed out, rv = %s (%d)",
1302 vcm->my_pid, vppcom_retval_str (rv), rv);
1308 #define foreach_sock_msg \
1309 _(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
1310 _(BIND_SOCK_REPLY, bind_sock_reply) \
1311 _(UNBIND_SOCK_REPLY, unbind_sock_reply) \
1312 _(ACCEPT_SESSION, accept_session) \
1313 _(CONNECT_SOCK, connect_sock) \
1314 _(CONNECT_SESSION_REPLY, connect_session_reply) \
1315 _(DISCONNECT_SESSION, disconnect_session) \
1316 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1317 _(RESET_SESSION, reset_session) \
1318 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1319 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1320 _(MAP_ANOTHER_SEGMENT, map_another_segment)
1323 vppcom_api_hookup (void)
1326 vl_msg_api_set_handlers(VL_API_##N, #n, \
1327 vl_api_##n##_t_handler, \
1329 vl_api_##n##_t_endian, \
1330 vl_api_##n##_t_print, \
1331 sizeof(vl_api_##n##_t), 1);
1337 vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
1341 vcl_cfg->heapsize = (256ULL << 20);
1342 vcl_cfg->segment_baseva = 0x200000000ULL;
1343 vcl_cfg->segment_size = (256 << 20);
1344 vcl_cfg->add_segment_size = (128 << 20);
1345 vcl_cfg->preallocated_fifo_pairs = 8;
1346 vcl_cfg->rx_fifo_size = (1 << 20);
1347 vcl_cfg->tx_fifo_size = (1 << 20);
1348 vcl_cfg->event_queue_size = 2048;
1349 vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
1350 vcl_cfg->app_timeout = 10 * 60.0;
1351 vcl_cfg->session_timeout = 10 * 60.0;
1352 vcl_cfg->accept_timeout = 60.0;
1356 vppcom_cfg_heapsize (char *conf_fname)
1358 vppcom_main_t *vcm = &vppcom_main;
1359 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1370 fp = fopen (conf_fname, "r");
1373 if (VPPCOM_DEBUG > 0)
1374 fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
1377 argv = calloc (1, sizeof (char *));
1383 if (fgets (inbuf, 4096, fp) == 0)
1385 p = strtok (inbuf, " \t\n");
1391 char **tmp = realloc (argv, argc * sizeof (char *));
1395 arg = strndup (p, 1024);
1398 argv[argc - 1] = arg;
1399 p = strtok (NULL, " \t\n");
1406 char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
1413 * Look for and parse the "heapsize" config parameter.
1414 * Manual since none of the clib infra has been bootstrapped yet.
1416 * Format: heapsize <nn>[mM][gG]
1419 for (i = 1; i < (argc - 1); i++)
1421 if (!strncmp (argv[i], "heapsize", 8))
1423 sizep = (u8 *) argv[i + 1];
1425 while (*sizep >= '0' && *sizep <= '9')
1428 size += *sizep++ - '0';
1432 if (VPPCOM_DEBUG > 0)
1433 clib_warning ("[%d] parse error '%s %s', "
1434 "using default heapsize %lld (0x%llx)",
1435 vcm->my_pid, argv[i], argv[i + 1],
1436 vcl_cfg->heapsize, vcl_cfg->heapsize);
1440 if (*sizep == 'g' || *sizep == 'G')
1441 vcl_cfg->heapsize = size << 30;
1442 else if (*sizep == 'm' || *sizep == 'M')
1443 vcl_cfg->heapsize = size << 20;
1446 if (VPPCOM_DEBUG > 0)
1447 clib_warning ("[%d] parse error '%s %s', "
1448 "using default heapsize %lld (0x%llx)",
1449 vcm->my_pid, argv[i], argv[i + 1],
1450 vcl_cfg->heapsize, vcl_cfg->heapsize);
1461 if (!clib_mem_init (0, vcl_cfg->heapsize))
1462 clib_warning ("[%d] vppcom heap allocation failure!", vcm->my_pid);
1463 else if (VPPCOM_DEBUG > 0)
1464 clib_warning ("[%d] allocated vppcom heapsize %lld (0x%llx)",
1465 vcm->my_pid, vcl_cfg->heapsize, vcl_cfg->heapsize);
1469 vppcom_cfg_read (char *conf_fname)
1471 vppcom_main_t *vcm = &vppcom_main;
1472 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1474 unformat_input_t _input, *input = &_input;
1475 unformat_input_t _line_input, *line_input = &_line_input;
1476 u8 vc_cfg_input = 0;
1481 fd = open (conf_fname, O_RDONLY);
1484 if (VPPCOM_DEBUG > 0)
1485 clib_warning ("[%d] open configuration file '%s' failed!",
1486 vcm->my_pid, conf_fname);
1490 if (fstat (fd, &s) < 0)
1492 if (VPPCOM_DEBUG > 0)
1493 clib_warning ("[%d] failed to stat `%s'", vcm->my_pid, conf_fname);
1497 if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
1499 if (VPPCOM_DEBUG > 0)
1500 clib_warning ("[%d] not a regular file `%s'", vcm->my_pid,
1505 unformat_init_clib_file (input, fd);
1507 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1509 (void) unformat_user (input, unformat_line_input, line_input);
1510 unformat_skip_white_space (line_input);
1512 if (unformat (line_input, "vppcom {"))
1520 if (unformat (line_input, "heapsize %s", &chroot_path))
1522 vec_terminate_c_string (chroot_path);
1523 if (VPPCOM_DEBUG > 0)
1524 clib_warning ("[%d] configured heapsize %s, "
1525 "actual heapsize %lld (0x%llx)",
1526 vcm->my_pid, chroot_path, vcl_cfg->heapsize,
1528 vec_free (chroot_path);
1530 else if (unformat (line_input, "api-prefix %s", &chroot_path))
1532 vec_terminate_c_string (chroot_path);
1533 vl_set_memory_root_path ((char *) chroot_path);
1534 if (VPPCOM_DEBUG > 0)
1535 clib_warning ("[%d] configured api-prefix %s",
1536 vcm->my_pid, chroot_path);
1537 chroot_path = 0; /* Don't vec_free() it! */
1539 else if (unformat (line_input, "uid %d", &uid))
1541 vl_set_memory_uid (uid);
1542 if (VPPCOM_DEBUG > 0)
1543 clib_warning ("[%d] configured uid %d", vcm->my_pid, uid);
1545 else if (unformat (line_input, "gid %d", &gid))
1547 vl_set_memory_gid (gid);
1548 if (VPPCOM_DEBUG > 0)
1549 clib_warning ("[%d] configured gid %d", vcm->my_pid, gid);
1551 else if (unformat (line_input, "segment-baseva 0x%llx",
1552 &vcl_cfg->segment_baseva))
1554 if (VPPCOM_DEBUG > 0)
1555 clib_warning ("[%d] configured segment_baseva 0x%llx",
1556 vcm->my_pid, vcl_cfg->segment_baseva);
1558 else if (unformat (line_input, "segment-size 0x%lx",
1559 &vcl_cfg->segment_size))
1561 if (VPPCOM_DEBUG > 0)
1562 clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
1563 vcm->my_pid, vcl_cfg->segment_size,
1564 vcl_cfg->segment_size);
1566 else if (unformat (line_input, "segment-size %ld",
1567 &vcl_cfg->segment_size))
1569 if (VPPCOM_DEBUG > 0)
1570 clib_warning ("[%d] configured segment_size %ld (0x%lx)",
1571 vcm->my_pid, vcl_cfg->segment_size,
1572 vcl_cfg->segment_size);
1574 else if (unformat (line_input, "add-segment-size 0x%lx",
1575 &vcl_cfg->add_segment_size))
1577 if (VPPCOM_DEBUG > 0)
1579 ("[%d] configured add_segment_size 0x%lx (%ld)",
1580 vcm->my_pid, vcl_cfg->add_segment_size,
1581 vcl_cfg->add_segment_size);
1583 else if (unformat (line_input, "add-segment-size %ld",
1584 &vcl_cfg->add_segment_size))
1586 if (VPPCOM_DEBUG > 0)
1588 ("[%d] configured add_segment_size %ld (0x%lx)",
1589 vcm->my_pid, vcl_cfg->add_segment_size,
1590 vcl_cfg->add_segment_size);
1592 else if (unformat (line_input, "preallocated-fifo-pairs %d",
1593 &vcl_cfg->preallocated_fifo_pairs))
1595 if (VPPCOM_DEBUG > 0)
1596 clib_warning ("[%d] configured preallocated_fifo_pairs "
1597 "%d (0x%x)", vcm->my_pid,
1598 vcl_cfg->preallocated_fifo_pairs,
1599 vcl_cfg->preallocated_fifo_pairs);
1601 else if (unformat (line_input, "rx-fifo-size 0x%lx",
1602 &vcl_cfg->rx_fifo_size))
1604 if (VPPCOM_DEBUG > 0)
1605 clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
1606 vcm->my_pid, vcl_cfg->rx_fifo_size,
1607 vcl_cfg->rx_fifo_size);
1609 else if (unformat (line_input, "rx-fifo-size %ld",
1610 &vcl_cfg->rx_fifo_size))
1612 if (VPPCOM_DEBUG > 0)
1613 clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
1614 vcm->my_pid, vcl_cfg->rx_fifo_size,
1615 vcl_cfg->rx_fifo_size);
1617 else if (unformat (line_input, "tx-fifo-size 0x%lx",
1618 &vcl_cfg->tx_fifo_size))
1620 if (VPPCOM_DEBUG > 0)
1621 clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
1622 vcm->my_pid, vcl_cfg->tx_fifo_size,
1623 vcl_cfg->tx_fifo_size);
1625 else if (unformat (line_input, "tx-fifo-size %ld",
1626 &vcl_cfg->tx_fifo_size))
1628 if (VPPCOM_DEBUG > 0)
1629 clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
1630 vcm->my_pid, vcl_cfg->tx_fifo_size,
1631 vcl_cfg->tx_fifo_size);
1633 else if (unformat (line_input, "event-queue-size 0x%lx",
1634 &vcl_cfg->event_queue_size))
1636 if (VPPCOM_DEBUG > 0)
1637 clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
1638 vcm->my_pid, vcl_cfg->event_queue_size,
1639 vcl_cfg->event_queue_size);
1641 else if (unformat (line_input, "event-queue-size %ld",
1642 &vcl_cfg->event_queue_size))
1644 if (VPPCOM_DEBUG > 0)
1645 clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
1646 vcm->my_pid, vcl_cfg->event_queue_size,
1647 vcl_cfg->event_queue_size);
1649 else if (unformat (line_input, "listen-queue-size 0x%lx",
1650 &vcl_cfg->listen_queue_size))
1652 if (VPPCOM_DEBUG > 0)
1653 clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
1654 vcm->my_pid, vcl_cfg->listen_queue_size,
1655 vcl_cfg->listen_queue_size);
1657 else if (unformat (line_input, "listen-queue-size %ld",
1658 &vcl_cfg->listen_queue_size))
1660 if (VPPCOM_DEBUG > 0)
1661 clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
1662 vcm->my_pid, vcl_cfg->listen_queue_size,
1663 vcl_cfg->listen_queue_size);
1665 else if (unformat (line_input, "app-timeout %f",
1666 &vcl_cfg->app_timeout))
1668 if (VPPCOM_DEBUG > 0)
1669 clib_warning ("[%d] configured app_timeout %f",
1670 vcm->my_pid, vcl_cfg->app_timeout);
1672 else if (unformat (line_input, "session-timeout %f",
1673 &vcl_cfg->session_timeout))
1675 if (VPPCOM_DEBUG > 0)
1676 clib_warning ("[%d] configured session_timeout %f",
1677 vcm->my_pid, vcl_cfg->session_timeout);
1679 else if (unformat (line_input, "accept-timeout %f",
1680 &vcl_cfg->accept_timeout))
1682 if (VPPCOM_DEBUG > 0)
1683 clib_warning ("[%d] configured accept_timeout %f",
1684 vcm->my_pid, vcl_cfg->accept_timeout);
1686 else if (unformat (line_input, "}"))
1689 if (VPPCOM_DEBUG > 0)
1690 clib_warning ("[%d] completed parsing vppcom config!",
1696 if (line_input->buffer[line_input->index] != '#')
1698 clib_warning ("[%d] Unknown vppcom config option: '%s'",
1699 vcm->my_pid, (char *)
1700 &line_input->buffer[line_input->index]);
1707 unformat_free (input);
1715 * VPPCOM Public API functions
1718 vppcom_app_create (char *app_name)
1720 vppcom_main_t *vcm = &vppcom_main;
1721 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1731 vcm->my_pid = getpid ();
1732 clib_fifo_validate (vcm->client_session_index_fifo,
1733 vcm->cfg.listen_queue_size);
1734 vppcom_cfg_init (vcl_cfg);
1735 conf_fname = getenv (VPPCOM_CONF_ENV);
1738 conf_fname = VPPCOM_CONF_DEFAULT;
1739 if (VPPCOM_DEBUG > 0)
1740 clib_warning ("[%d] getenv '%s' failed!", vcm->my_pid,
1743 vppcom_cfg_heapsize (conf_fname);
1744 vppcom_cfg_read (conf_fname);
1745 vcm->bind_session_index = ~0;
1746 vcm->main_cpu = os_get_thread_index ();
1747 heap = clib_mem_get_per_cpu_heap ();
1748 h = mheap_header (heap);
1750 /* make the main heap thread-safe */
1751 h->flags |= MHEAP_FLAG_THREAD_SAFE;
1753 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1755 clib_time_init (&vcm->clib_time);
1756 vppcom_init_error_string_table ();
1757 svm_fifo_segment_init (vcl_cfg->segment_baseva,
1758 20 /* timeout in secs */ );
1759 clib_spinlock_init (&vcm->sessions_lockp);
1760 vppcom_api_hookup ();
1763 if (vcm->my_client_index == ~0)
1765 vcm->app_state = STATE_APP_START;
1766 rv = vppcom_connect_to_vpp (app_name);
1769 clib_warning ("[%d] couldn't connect to VPP.", vcm->my_pid);
1773 if (VPPCOM_DEBUG > 0)
1774 clib_warning ("[%d] sending session enable", vcm->my_pid);
1776 rv = vppcom_app_session_enable ();
1779 clib_warning ("[%d] vppcom_app_session_enable() failed!",
1784 if (VPPCOM_DEBUG > 0)
1785 clib_warning ("[%d] sending app attach", vcm->my_pid);
1787 rv = vppcom_app_attach ();
1790 clib_warning ("[%d] vppcom_app_attach() failed!", vcm->my_pid);
1795 if (VPPCOM_DEBUG > 0)
1796 clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
1797 vcm->my_pid, app_name, vcm->my_client_index,
1798 vcm->my_client_index);
1804 vppcom_app_destroy (void)
1806 vppcom_main_t *vcm = &vppcom_main;
1809 if (vcm->my_client_index == ~0)
1812 if (VPPCOM_DEBUG > 0)
1813 clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
1814 vcm->my_pid, vcm->my_client_index, vcm->my_client_index);
1816 vppcom_app_detach ();
1817 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
1818 if (PREDICT_FALSE (rv))
1820 if (VPPCOM_DEBUG > 0)
1821 clib_warning ("[%d] application detach timed out, rv = %s (%d)",
1822 vcm->my_pid, vppcom_retval_str (rv), rv);
1824 vl_client_disconnect_from_vlib ();
1825 vcm->my_client_index = ~0;
1826 vcm->app_state = STATE_APP_START;
1830 vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
1832 vppcom_main_t *vcm = &vppcom_main;
1836 clib_spinlock_lock (&vcm->sessions_lockp);
1837 pool_get (vcm->sessions, session);
1838 memset (session, 0, sizeof (*session));
1839 session_index = session - vcm->sessions;
1842 session->proto = proto;
1843 session->state = STATE_START;
1844 session->is_nonblocking = is_nonblocking ? 1 : 0;
1845 clib_spinlock_unlock (&vcm->sessions_lockp);
1847 if (VPPCOM_DEBUG > 0)
1848 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1850 return (int) session_index;
1854 vppcom_session_close (uint32_t session_index)
1856 vppcom_main_t *vcm = &vppcom_main;
1857 session_t *session = 0;
1860 clib_spinlock_lock (&vcm->sessions_lockp);
1861 rv = vppcom_session_at_index (session_index, &session);
1862 if (PREDICT_FALSE (rv))
1864 if (VPPCOM_DEBUG > 0)
1865 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1866 vcm->my_pid, session_index);
1867 clib_spinlock_unlock (&vcm->sessions_lockp);
1870 clib_spinlock_unlock (&vcm->sessions_lockp);
1872 if (VPPCOM_DEBUG > 0)
1873 clib_warning ("[%d] sid %d", vcm->my_pid, session_index);
1875 if (session->is_vep)
1878 for (next_sid = session->vep.next_sid; next_sid != ~0;
1879 next_sid = session->vep.next_sid)
1881 rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
1882 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1883 clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
1884 "rv = %s (%d)", session_index, next_sid,
1885 vcm->my_pid, session_index,
1886 vppcom_retval_str (rv), rv);
1888 clib_spinlock_lock (&vcm->sessions_lockp);
1889 rv = vppcom_session_at_index (session_index, &session);
1890 if (PREDICT_FALSE (rv))
1892 if (VPPCOM_DEBUG > 0)
1894 ("[%d] invalid session, sid (%u) has been closed!",
1895 vcm->my_pid, session_index);
1896 clib_spinlock_unlock (&vcm->sessions_lockp);
1899 clib_spinlock_unlock (&vcm->sessions_lockp);
1904 if (session->is_vep_session)
1906 u32 vep_idx = session->vep.vep_idx;
1907 rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
1908 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1909 clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, "
1910 "rv = %s (%d)", vep_idx, session_index,
1911 vcm->my_pid, session_index,
1912 vppcom_retval_str (rv), rv);
1914 clib_spinlock_lock (&vcm->sessions_lockp);
1915 rv = vppcom_session_at_index (session_index, &session);
1916 if (PREDICT_FALSE (rv))
1918 if (VPPCOM_DEBUG > 0)
1920 ("[%d] invalid session, sid (%u) has been closed!",
1921 vcm->my_pid, session_index);
1922 clib_spinlock_unlock (&vcm->sessions_lockp);
1925 clib_spinlock_unlock (&vcm->sessions_lockp);
1928 if (session->is_cut_thru && session->is_server &&
1929 (session->state == STATE_ACCEPT))
1931 rv = vppcom_session_unbind_cut_thru (session);
1932 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1933 clib_warning ("[%d] unbind cut-thru (session %d) failed, "
1935 vcm->my_pid, session_index,
1936 vppcom_retval_str (rv), rv);
1938 else if (session->is_server && session->is_listen)
1940 rv = vppcom_session_unbind (session_index);
1941 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1942 clib_warning ("[%d] unbind (session %d) failed, rv = %s (%d)",
1943 vcm->my_pid, session_index,
1944 vppcom_retval_str (rv), rv);
1946 else if (session->state == STATE_CONNECT)
1948 rv = vppcom_session_disconnect (session_index);
1949 if ((VPPCOM_DEBUG > 0) && (rv < 0))
1950 clib_warning ("[%d] disconnect (session %d) failed, rv = %s (%d)",
1951 vcm->my_pid, session_index,
1952 vppcom_retval_str (rv), rv);
1955 pool_put_index (vcm->sessions, session_index);
1961 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
1963 vppcom_main_t *vcm = &vppcom_main;
1964 session_t *session = 0;
1968 return VPPCOM_EINVAL;
1970 clib_spinlock_lock (&vcm->sessions_lockp);
1971 rv = vppcom_session_at_index (session_index, &session);
1972 if (PREDICT_FALSE (rv))
1974 clib_spinlock_unlock (&vcm->sessions_lockp);
1975 if (VPPCOM_DEBUG > 0)
1976 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
1977 vcm->my_pid, session_index);
1981 if (session->is_vep)
1983 clib_spinlock_unlock (&vcm->sessions_lockp);
1984 if (VPPCOM_DEBUG > 0)
1985 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
1986 vcm->my_pid, session_index);
1987 return VPPCOM_EBADFD;
1990 session->vrf = ep->vrf;
1991 session->lcl_addr.is_ip4 = ep->is_ip4;
1992 session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip);
1993 session->lcl_port = ep->port;
1995 if (VPPCOM_DEBUG > 0)
1996 clib_warning ("[%d] sid %d, bound to lcl address %U lcl port %u",
1997 vcm->my_pid, session_index, format_ip46_address,
1998 &session->lcl_addr.ip46, session->lcl_addr.is_ip4,
1999 clib_net_to_host_u16 (session->lcl_port));
2001 clib_spinlock_unlock (&vcm->sessions_lockp);
2006 vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
2008 vppcom_main_t *vcm = &vppcom_main;
2009 session_t *listen_session = 0;
2012 clib_spinlock_lock (&vcm->sessions_lockp);
2013 rv = vppcom_session_at_index (listen_session_index, &listen_session);
2014 if (PREDICT_FALSE (rv))
2016 clib_spinlock_unlock (&vcm->sessions_lockp);
2017 if (VPPCOM_DEBUG > 0)
2018 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2019 vcm->my_pid, listen_session_index);
2023 if (listen_session->is_vep)
2025 clib_spinlock_unlock (&vcm->sessions_lockp);
2026 if (VPPCOM_DEBUG > 0)
2027 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2028 vcm->my_pid, listen_session_index);
2029 return VPPCOM_EBADFD;
2032 if (VPPCOM_DEBUG > 0)
2033 clib_warning ("[%d] sid %d", vcm->my_pid, listen_session_index);
2035 ASSERT (vcm->bind_session_index == ~0);
2036 vcm->bind_session_index = listen_session_index;
2037 vppcom_send_bind_sock (listen_session);
2038 clib_spinlock_unlock (&vcm->sessions_lockp);
2040 vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
2041 vcm->cfg.session_timeout);
2042 if (PREDICT_FALSE (rv))
2044 vcm->bind_session_index = ~0;
2045 if (VPPCOM_DEBUG > 0)
2046 clib_warning ("[%d] server listen timed out, rv = %d (%d)",
2047 vcm->my_pid, vppcom_retval_str (rv), rv);
2051 clib_spinlock_lock (&vcm->sessions_lockp);
2052 rv = vppcom_session_at_index (listen_session_index, &listen_session);
2053 if (PREDICT_FALSE (rv))
2055 clib_spinlock_unlock (&vcm->sessions_lockp);
2056 if (VPPCOM_DEBUG > 0)
2057 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2058 vcm->my_pid, listen_session_index);
2061 listen_session->is_listen = 1;
2062 clib_fifo_validate (vcm->client_session_index_fifo, q_len);
2063 clib_spinlock_unlock (&vcm->sessions_lockp);
2069 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
2070 double wait_for_time)
2072 vppcom_main_t *vcm = &vppcom_main;
2073 session_t *listen_session = 0;
2074 session_t *client_session = 0;
2075 u32 client_session_index;
2079 clib_spinlock_lock (&vcm->sessions_lockp);
2080 rv = vppcom_session_at_index (listen_session_index, &listen_session);
2081 if (PREDICT_FALSE (rv))
2083 clib_spinlock_unlock (&vcm->sessions_lockp);
2084 if (VPPCOM_DEBUG > 0)
2085 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2086 vcm->my_pid, listen_session_index);
2090 if (listen_session->is_vep)
2092 clib_spinlock_unlock (&vcm->sessions_lockp);
2093 if (VPPCOM_DEBUG > 0)
2094 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2095 vcm->my_pid, listen_session_index);
2096 return VPPCOM_EBADFD;
2099 if (listen_session->state != STATE_LISTEN)
2101 clib_spinlock_unlock (&vcm->sessions_lockp);
2102 if (VPPCOM_DEBUG > 0)
2103 clib_warning ("[%d] session not in listen state, state = %s",
2105 vppcom_session_state_str (listen_session->state));
2106 return VPPCOM_EBADFD;
2108 wait_for = listen_session->is_nonblocking ? 0 :
2109 (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time;
2111 if (VPPCOM_DEBUG > 0)
2112 clib_warning ("[%d] sid %d: %s (%d)", vcm->my_pid,
2113 listen_session_index,
2114 vppcom_session_state_str (listen_session->state),
2115 listen_session->state);
2116 clib_spinlock_unlock (&vcm->sessions_lockp);
2120 rv = vppcom_wait_for_client_session_index (wait_for);
2123 if ((VPPCOM_DEBUG > 0))
2124 clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)",
2125 vcm->my_pid, listen_session_index,
2126 vppcom_retval_str (rv), rv);
2127 if ((wait_for == 0) || (wait_for_time > 0))
2134 clib_spinlock_lock (&vcm->sessions_lockp);
2135 clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
2136 rv = vppcom_session_at_index (client_session_index, &client_session);
2137 ASSERT (rv == VPPCOM_OK);
2138 ASSERT (client_session->peer_addr.is_ip4 ==
2139 listen_session->lcl_addr.is_ip4);
2141 if (VPPCOM_DEBUG > 0)
2142 clib_warning ("[%d] Got a request: client sid %d", vcm->my_pid,
2143 client_session_index);
2145 // Copy the lcl information from the listening session to the client session
2146 // client_session->lcl_port = listen_session->lcl_port;
2147 // client_session->lcl_addr = listen_session->lcl_addr;
2149 ep->vrf = client_session->vrf;
2150 ep->is_cut_thru = client_session->is_cut_thru;
2151 ep->is_ip4 = client_session->peer_addr.is_ip4;
2152 ep->port = client_session->peer_port;
2153 if (client_session->peer_addr.is_ip4)
2154 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4,
2155 sizeof (ip4_address_t));
2157 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6,
2158 sizeof (ip6_address_t));
2159 if (VPPCOM_DEBUG > 0)
2160 clib_warning ("[%d] sid %d, accepted peer address %U peer port %u",
2161 vcm->my_pid, client_session_index, format_ip46_address,
2162 &client_session->peer_addr.ip46,
2163 client_session->peer_addr.is_ip4,
2164 clib_net_to_host_u16 (client_session->peer_port));
2165 clib_spinlock_unlock (&vcm->sessions_lockp);
2166 return (int) client_session_index;
2170 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
2172 vppcom_main_t *vcm = &vppcom_main;
2173 session_t *session = 0;
2176 clib_spinlock_lock (&vcm->sessions_lockp);
2177 rv = vppcom_session_at_index (session_index, &session);
2178 if (PREDICT_FALSE (rv))
2180 clib_spinlock_unlock (&vcm->sessions_lockp);
2181 if (VPPCOM_DEBUG > 0)
2182 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2183 vcm->my_pid, session_index);
2187 if (session->is_vep)
2189 clib_spinlock_unlock (&vcm->sessions_lockp);
2190 if (VPPCOM_DEBUG > 0)
2191 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2192 vcm->my_pid, session_index);
2193 return VPPCOM_EBADFD;
2196 if (session->state == STATE_CONNECT)
2198 clib_spinlock_unlock (&vcm->sessions_lockp);
2199 if (VPPCOM_DEBUG > 0)
2200 clib_warning ("[%d] session, sid (%u) already connected!",
2201 vcm->my_pid, session_index);
2205 session->vrf = server_ep->vrf;
2206 session->peer_addr.is_ip4 = server_ep->is_ip4;
2207 session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
2208 session->peer_port = server_ep->port;
2210 if (VPPCOM_DEBUG > 0)
2212 u8 *ip_str = format (0, "%U", format_ip46_address,
2213 &session->peer_addr.ip46,
2214 session->peer_addr.is_ip4);
2215 clib_warning ("[%d] connect sid %d to %s server port %d proto %s",
2216 vcm->my_pid, session_index, ip_str,
2217 clib_net_to_host_u16 (session->peer_port),
2218 session->proto ? "UDP" : "TCP");
2222 vppcom_send_connect_sock (session, session_index);
2223 clib_spinlock_unlock (&vcm->sessions_lockp);
2224 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
2225 vcm->cfg.session_timeout);
2226 if (PREDICT_FALSE (rv))
2228 if (VPPCOM_DEBUG > 0)
2229 clib_warning ("[%d] connect timed out, rv = %s (%d)",
2230 vcm->my_pid, vppcom_retval_str (rv), rv);
2233 if (VPPCOM_DEBUG > 0)
2234 clib_warning ("[%d] sid %d connected!", vcm->my_pid, session_index);
2240 vppcom_session_read_internal (uint32_t session_index, void *buf, int n,
2243 vppcom_main_t *vcm = &vppcom_main;
2244 session_t *session = 0;
2245 svm_fifo_t *rx_fifo;
2253 clib_spinlock_lock (&vcm->sessions_lockp);
2254 rv = vppcom_session_at_index (session_index, &session);
2255 if (PREDICT_FALSE (rv))
2257 clib_spinlock_unlock (&vcm->sessions_lockp);
2258 if (VPPCOM_DEBUG > 0)
2259 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2260 vcm->my_pid, session_index);
2264 if (session->is_vep)
2266 clib_spinlock_unlock (&vcm->sessions_lockp);
2267 if (VPPCOM_DEBUG > 0)
2268 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2269 vcm->my_pid, session_index);
2270 return VPPCOM_EBADFD;
2273 if (session->state == STATE_DISCONNECT)
2275 clib_spinlock_unlock (&vcm->sessions_lockp);
2276 if (VPPCOM_DEBUG > 0)
2277 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2278 vcm->my_pid, session_index);
2279 return VPPCOM_ECONNRESET;
2282 rx_fifo = ((!session->is_cut_thru || session->is_server) ?
2283 session->server_rx_fifo : session->server_tx_fifo);
2284 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2285 "server_rx_fifo" : "server_tx_fifo");
2286 poll_et = EPOLLET & session->vep.ev.events;
2287 clib_spinlock_unlock (&vcm->sessions_lockp);
2292 n_read = svm_fifo_peek (rx_fifo, 0, n, buf);
2294 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2296 while (!session->is_nonblocking && (n_read <= 0));
2298 if (poll_et && (n_read <= 0))
2300 clib_spinlock_lock (&vcm->sessions_lockp);
2301 session->vep.et_mask |= EPOLLIN;
2302 clib_spinlock_unlock (&vcm->sessions_lockp);
2305 if ((VPPCOM_DEBUG > 2) && (n_read > 0))
2306 clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", vcm->my_pid,
2307 session_index, n_read, fifo_str, rx_fifo);
2309 return (n_read <= 0) ? VPPCOM_EAGAIN : n_read;
2313 vppcom_session_read (uint32_t session_index, void *buf, int n)
2315 return (vppcom_session_read_internal (session_index, buf, n, 0));
2319 vppcom_session_peek (uint32_t session_index, void *buf, int n)
2321 return (vppcom_session_read_internal (session_index, buf, n, 1));
2325 vppcom_session_read_ready (session_t * session, u32 session_index)
2327 vppcom_main_t *vcm = &vppcom_main;
2328 svm_fifo_t *rx_fifo;
2331 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2332 if (session->is_vep)
2334 clib_spinlock_unlock (&vcm->sessions_lockp);
2335 if (VPPCOM_DEBUG > 0)
2336 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2337 vcm->my_pid, session_index);
2338 return VPPCOM_EBADFD;
2341 if (session->state == STATE_DISCONNECT)
2343 if (VPPCOM_DEBUG > 0)
2344 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2345 vcm->my_pid, session_index);
2346 return VPPCOM_ECONNRESET;
2349 if (session->is_listen)
2350 ready = clib_fifo_elts (vcm->client_session_index_fifo);
2353 rx_fifo = ((!session->is_cut_thru || session->is_server) ?
2354 session->server_rx_fifo : session->server_tx_fifo);
2356 ready = svm_fifo_max_dequeue (rx_fifo);
2359 if (VPPCOM_DEBUG > 3)
2360 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2362 session->is_server ? "server_rx_fifo" : "server_tx_fifo",
2364 if ((session->vep.ev.events & EPOLLET) && (ready == 0))
2365 session->vep.et_mask |= EPOLLIN;
2371 vppcom_session_write (uint32_t session_index, void *buf, int n)
2373 vppcom_main_t *vcm = &vppcom_main;
2374 session_t *session = 0;
2375 svm_fifo_t *tx_fifo;
2376 unix_shared_memory_queue_t *q;
2377 session_fifo_event_t evt;
2384 clib_spinlock_lock (&vcm->sessions_lockp);
2385 rv = vppcom_session_at_index (session_index, &session);
2386 if (PREDICT_FALSE (rv))
2388 clib_spinlock_unlock (&vcm->sessions_lockp);
2389 if (VPPCOM_DEBUG > 0)
2390 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2391 vcm->my_pid, session_index);
2395 if (session->is_vep)
2397 clib_spinlock_unlock (&vcm->sessions_lockp);
2398 if (VPPCOM_DEBUG > 0)
2399 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2400 vcm->my_pid, session_index);
2401 return VPPCOM_EBADFD;
2404 if (session->state == STATE_DISCONNECT)
2406 clib_spinlock_unlock (&vcm->sessions_lockp);
2407 if (VPPCOM_DEBUG > 0)
2408 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2409 vcm->my_pid, session_index);
2410 return VPPCOM_ECONNRESET;
2413 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2414 session->server_tx_fifo : session->server_rx_fifo);
2415 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2416 "server_tx_fifo" : "server_rx_fifo");
2417 q = session->vpp_event_queue;
2418 poll_et = EPOLLET & session->vep.ev.events;
2419 clib_spinlock_unlock (&vcm->sessions_lockp);
2423 n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
2425 while (!session->is_nonblocking && (n_write <= 0));
2427 /* If event wasn't set, add one */
2428 if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo))
2432 /* Fabricate TX event, send to vpp */
2434 evt.event_type = FIFO_EVENT_APP_TX;
2436 rval = vppcom_session_at_index (session_index, &session);
2437 if (PREDICT_FALSE (rval))
2439 if (VPPCOM_DEBUG > 1)
2440 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
2441 vcm->my_pid, session_index);
2445 unix_shared_memory_queue_add (q, (u8 *) & evt,
2446 0 /* do wait for mutex */ );
2449 if (poll_et && (n_write <= 0))
2451 clib_spinlock_lock (&vcm->sessions_lockp);
2452 session->vep.et_mask |= EPOLLOUT;
2453 clib_spinlock_unlock (&vcm->sessions_lockp);
2456 if (VPPCOM_DEBUG > 2)
2459 clib_warning ("[%d] sid %d, FIFO-FULL %s (%p)", vcm->my_pid,
2460 session_index, fifo_str, tx_fifo);
2462 clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", vcm->my_pid,
2463 session_index, n_write, fifo_str, tx_fifo);
2465 return (n_write < 0) ? VPPCOM_EAGAIN : n_write;
2469 vppcom_session_write_ready (session_t * session, u32 session_index)
2471 vppcom_main_t *vcm = &vppcom_main;
2472 svm_fifo_t *tx_fifo;
2476 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2477 if (session->is_vep)
2479 clib_spinlock_unlock (&vcm->sessions_lockp);
2480 if (VPPCOM_DEBUG > 0)
2481 clib_warning ("[%d] invalid session, sid (%u) is an epoll session!",
2482 vcm->my_pid, session_index);
2483 return VPPCOM_EBADFD;
2486 if (session->state == STATE_DISCONNECT)
2488 if (VPPCOM_DEBUG > 0)
2489 clib_warning ("[%d] sid (%u) has been closed by remote peer!",
2490 vcm->my_pid, session_index);
2491 return VPPCOM_ECONNRESET;
2494 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
2495 session->server_tx_fifo : session->server_rx_fifo);
2496 fifo_str = ((!session->is_cut_thru || session->is_server) ?
2497 "server_tx_fifo" : "server_rx_fifo");
2499 ready = svm_fifo_max_enqueue (tx_fifo);
2501 if (VPPCOM_DEBUG > 3)
2502 clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", vcm->my_pid,
2503 session_index, fifo_str, tx_fifo, ready);
2504 if ((session->vep.ev.events & EPOLLET) && (ready == 0))
2505 session->vep.et_mask |= EPOLLOUT;
2511 vppcom_select (unsigned long n_bits, unsigned long *read_map,
2512 unsigned long *write_map, unsigned long *except_map,
2513 double time_to_wait)
2515 vppcom_main_t *vcm = &vppcom_main;
2517 session_t *session = 0;
2518 int rv, bits_set = 0;
2519 f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
2520 u32 minbits = clib_max (n_bits, BITS (uword));
2522 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
2524 if (n_bits && read_map)
2526 clib_bitmap_validate (vcm->rd_bitmap, minbits);
2527 clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
2528 memset (read_map, 0, vec_len (vcm->rd_bitmap));
2530 if (n_bits && write_map)
2532 clib_bitmap_validate (vcm->wr_bitmap, minbits);
2533 clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
2534 memset (write_map, 0, vec_len (vcm->wr_bitmap));
2536 if (n_bits && except_map)
2538 clib_bitmap_validate (vcm->ex_bitmap, minbits);
2539 clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
2540 memset (except_map, 0, vec_len (vcm->ex_bitmap));
2550 clib_bitmap_foreach (session_index, vcm->rd_bitmap,
2552 clib_spinlock_lock (&vcm->sessions_lockp);
2553 rv = vppcom_session_at_index (session_index, &session);
2556 clib_spinlock_unlock (&vcm->sessions_lockp);
2557 if (VPPCOM_DEBUG > 1)
2558 clib_warning ("[%d] session %d specified in "
2559 "read_map is closed.", vcm->my_pid,
2561 bits_set = VPPCOM_EBADFD;
2565 rv = vppcom_session_read_ready (session, session_index);
2566 clib_spinlock_unlock (&vcm->sessions_lockp);
2567 if (except_map && vcm->ex_bitmap &&
2568 clib_bitmap_get (vcm->ex_bitmap, session_index) &&
2571 // TBD: clib_warning
2572 clib_bitmap_set_no_check (except_map, session_index, 1);
2577 // TBD: clib_warning
2578 clib_bitmap_set_no_check (read_map, session_index, 1);
2586 clib_bitmap_foreach (session_index, vcm->wr_bitmap,
2588 clib_spinlock_lock (&vcm->sessions_lockp);
2589 rv = vppcom_session_at_index (session_index, &session);
2592 clib_spinlock_unlock (&vcm->sessions_lockp);
2593 if (VPPCOM_DEBUG > 0)
2594 clib_warning ("[%d] session %d specified in "
2595 "write_map is closed.", vcm->my_pid,
2597 bits_set = VPPCOM_EBADFD;
2601 rv = vppcom_session_write_ready (session, session_index);
2602 clib_spinlock_unlock (&vcm->sessions_lockp);
2603 if (write_map && (rv > 0))
2605 // TBD: clib_warning
2606 clib_bitmap_set_no_check (write_map, session_index, 1);
2614 clib_bitmap_foreach (session_index, vcm->ex_bitmap,
2616 clib_spinlock_lock (&vcm->sessions_lockp);
2617 rv = vppcom_session_at_index (session_index, &session);
2620 clib_spinlock_unlock (&vcm->sessions_lockp);
2621 if (VPPCOM_DEBUG > 1)
2622 clib_warning ("[%d] session %d specified in "
2623 "except_map is closed.", vcm->my_pid,
2625 bits_set = VPPCOM_EBADFD;
2629 rv = vppcom_session_read_ready (session, session_index);
2630 clib_spinlock_unlock (&vcm->sessions_lockp);
2633 // TBD: clib_warning
2634 clib_bitmap_set_no_check (except_map, session_index, 1);
2642 while (clib_time_now (&vcm->clib_time) < timeout);
2649 vep_verify_epoll_chain (u32 vep_idx)
2652 vppcom_epoll_t *vep;
2656 if (VPPCOM_DEBUG < 1)
2659 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2660 rv = vppcom_session_at_index (vep_idx, &session);
2661 if (PREDICT_FALSE (rv))
2663 clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
2666 if (PREDICT_FALSE (!session->is_vep))
2668 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
2671 if (VPPCOM_DEBUG > 1)
2672 clib_warning ("vep_idx (%u): Dumping epoll chain\n"
2675 " is_vep_session = %u\n"
2676 " wait_cont_idx = 0x%x (%u)\n"
2678 vep_idx, session->is_vep, session->is_vep_session,
2679 session->wait_cont_idx, session->wait_cont_idx);
2682 vep = &session->vep;
2683 sid = vep->next_sid;
2684 if (session->is_vep_session)
2686 if (VPPCOM_DEBUG > 1)
2687 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2689 " next_sid = 0x%x (%u)\n"
2690 " prev_sid = 0x%x (%u)\n"
2691 " vep_idx = 0x%x (%u)\n"
2692 " ev.events = 0x%x\n"
2693 " ev.data.u64 = 0x%llx\n"
2697 vep->next_sid, vep->next_sid,
2698 vep->prev_sid, vep->prev_sid,
2699 vep->vep_idx, vep->vep_idx,
2700 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2704 rv = vppcom_session_at_index (sid, &session);
2705 if (PREDICT_FALSE (rv))
2707 clib_warning ("ERROR: Invalid sid (%u)!", sid);
2710 if (PREDICT_FALSE (session->is_vep))
2711 clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
2712 else if (PREDICT_FALSE (!session->is_vep_session))
2714 clib_warning ("ERROR: session (%u) is not a vep session!", sid);
2717 if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2718 clib_warning ("ERROR: session (%u) vep_idx (%u) != "
2720 sid, session->vep.vep_idx, vep_idx);
2726 if (VPPCOM_DEBUG > 1)
2727 clib_warning ("vep_idx (%u): Dump complete!", vep_idx);
2731 vppcom_epoll_create (void)
2733 vppcom_main_t *vcm = &vppcom_main;
2734 session_t *vep_session;
2737 clib_spinlock_lock (&vcm->sessions_lockp);
2738 pool_get (vcm->sessions, vep_session);
2739 memset (vep_session, 0, sizeof (*vep_session));
2740 vep_idx = vep_session - vcm->sessions;
2742 vep_session->is_vep = 1;
2743 vep_session->vep.vep_idx = ~0;
2744 vep_session->vep.next_sid = ~0;
2745 vep_session->vep.prev_sid = ~0;
2746 vep_session->wait_cont_idx = ~0;
2747 clib_spinlock_unlock (&vcm->sessions_lockp);
2749 if (VPPCOM_DEBUG > 0)
2750 clib_warning ("Created vep_idx %u!", vep_idx);
2756 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
2757 struct epoll_event *event)
2759 vppcom_main_t *vcm = &vppcom_main;
2760 session_t *vep_session;
2764 if (vep_idx == session_index)
2766 if (VPPCOM_DEBUG > 0)
2767 clib_warning ("ERROR: vep_idx == session_index (%u)!", vep_idx);
2768 return VPPCOM_EINVAL;
2771 clib_spinlock_lock (&vcm->sessions_lockp);
2772 rv = vppcom_session_at_index (vep_idx, &vep_session);
2773 if (PREDICT_FALSE (rv))
2775 if (VPPCOM_DEBUG > 0)
2776 clib_warning ("ERROR: Invalid vep_idx (%u)!", vep_idx);
2779 if (PREDICT_FALSE (!vep_session->is_vep))
2781 if (VPPCOM_DEBUG > 0)
2782 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
2787 ASSERT (vep_session->vep.vep_idx == ~0);
2788 ASSERT (vep_session->vep.prev_sid == ~0);
2790 rv = vppcom_session_at_index (session_index, &session);
2791 if (PREDICT_FALSE (rv))
2793 if (VPPCOM_DEBUG > 0)
2794 clib_warning ("ERROR: Invalid session_index (%u)!", session_index);
2797 if (PREDICT_FALSE (session->is_vep))
2799 if (VPPCOM_DEBUG > 0)
2800 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
2808 if (PREDICT_FALSE (!event))
2810 clib_warning ("NULL pointer to epoll_event structure!");
2814 if (vep_session->vep.next_sid != ~0)
2816 session_t *next_session;
2817 rv = vppcom_session_at_index (vep_session->vep.next_sid,
2819 if (PREDICT_FALSE (rv))
2821 if (VPPCOM_DEBUG > 0)
2822 clib_warning ("EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on"
2823 " vep_idx (%u)!", vep_session->vep.next_sid,
2827 ASSERT (next_session->vep.prev_sid == vep_idx);
2828 next_session->vep.prev_sid = session_index;
2830 session->vep.next_sid = vep_session->vep.next_sid;
2831 session->vep.prev_sid = vep_idx;
2832 session->vep.vep_idx = vep_idx;
2833 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2834 session->vep.ev = *event;
2835 session->is_vep_session = 1;
2836 vep_session->vep.next_sid = session_index;
2837 if (VPPCOM_DEBUG > 1)
2838 clib_warning ("EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x,"
2839 " data 0x%llx!", vep_idx, session_index,
2840 event->events, event->data.u64);
2844 if (PREDICT_FALSE (!event))
2846 clib_warning ("NULL pointer to epoll_event structure!");
2850 if (PREDICT_FALSE (!session->is_vep_session &&
2851 (session->vep.vep_idx != vep_idx)))
2853 if (VPPCOM_DEBUG > 0)
2855 if (!session->is_vep_session)
2856 clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
2857 "a vep session!", session_index);
2859 clib_warning ("EPOLL_CTL_MOD: session (%u) vep_idx (%u) != "
2860 "vep_idx (%u)!", session_index,
2861 session->vep.vep_idx, vep_idx);
2866 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2867 session->vep.ev = *event;
2868 if (VPPCOM_DEBUG > 1)
2869 clib_warning ("EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2870 " data 0x%llx!", vep_idx, session_index,
2871 event->events, event->data.u64);
2875 if (PREDICT_FALSE (!session->is_vep_session &&
2876 (session->vep.vep_idx != vep_idx)))
2878 if (VPPCOM_DEBUG > 0)
2880 if (!session->is_vep_session)
2881 clib_warning ("EPOLL_CTL_DEL: session (%u) is not "
2882 "a vep session!", session_index);
2884 clib_warning ("EPOLL_CTL_DEL: session (%u) vep_idx (%u) != "
2885 "vep_idx (%u)!", session_index,
2886 session->vep.vep_idx, vep_idx);
2892 vep_session->wait_cont_idx =
2893 (vep_session->wait_cont_idx == session_index) ?
2894 session->vep.next_sid : vep_session->wait_cont_idx;
2896 if (session->vep.prev_sid == vep_idx)
2897 vep_session->vep.next_sid = session->vep.next_sid;
2900 session_t *prev_session;
2901 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
2902 if (PREDICT_FALSE (rv))
2904 if (VPPCOM_DEBUG > 0)
2905 clib_warning ("EPOLL_CTL_DEL: Invalid vep.prev_sid (%u) on"
2906 " sid (%u)!", session->vep.prev_sid,
2910 ASSERT (prev_session->vep.next_sid == session_index);
2911 prev_session->vep.next_sid = session->vep.next_sid;
2913 if (session->vep.next_sid != ~0)
2915 session_t *next_session;
2916 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
2917 if (PREDICT_FALSE (rv))
2919 if (VPPCOM_DEBUG > 0)
2920 clib_warning ("EPOLL_CTL_DEL: Invalid vep.next_sid (%u) on"
2921 " sid (%u)!", session->vep.next_sid,
2925 ASSERT (next_session->vep.prev_sid == session_index);
2926 next_session->vep.prev_sid = session->vep.prev_sid;
2929 memset (&session->vep, 0, sizeof (session->vep));
2930 session->vep.next_sid = ~0;
2931 session->vep.prev_sid = ~0;
2932 session->vep.vep_idx = ~0;
2933 session->is_vep_session = 0;
2934 if (VPPCOM_DEBUG > 1)
2935 clib_warning ("EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_idx,
2940 clib_warning ("Invalid operation (%d)!", op);
2944 vep_verify_epoll_chain (vep_idx);
2947 clib_spinlock_unlock (&vcm->sessions_lockp);
2951 #define VCL_LOCK_AND_GET_SESSION(I, S) \
2953 vppcom_main_t *vcm = &vppcom_main; \
2955 clib_spinlock_lock (&vcm->sessions_lockp); \
2956 rv = vppcom_session_at_index (I, S); \
2957 if (PREDICT_FALSE (rv)) \
2959 clib_spinlock_unlock (&vcm->sessions_lockp); \
2961 if (VPPCOM_DEBUG > 0) \
2962 clib_warning ("ERROR: Invalid ##I (%u)!", I); \
2969 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
2970 int maxevents, double wait_for_time)
2972 vppcom_main_t *vcm = &vppcom_main;
2973 session_t *vep_session;
2975 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
2977 u32 vep_next_sid, wait_cont_idx;
2980 if (PREDICT_FALSE (maxevents <= 0))
2982 if (VPPCOM_DEBUG > 0)
2983 clib_warning ("ERROR: Invalid maxevents (%d)!", maxevents);
2984 return VPPCOM_EINVAL;
2986 if (PREDICT_FALSE (wait_for_time < 0))
2988 if (VPPCOM_DEBUG > 0)
2989 clib_warning ("ERROR: Invalid wait_for_time (%f)!", wait_for_time);
2990 return VPPCOM_EINVAL;
2992 memset (events, 0, sizeof (*events) * maxevents);
2994 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
2995 vep_next_sid = vep_session->vep.next_sid;
2996 is_vep = vep_session->is_vep;
2997 wait_cont_idx = vep_session->wait_cont_idx;
2998 clib_spinlock_unlock (&vcm->sessions_lockp);
3000 if (PREDICT_FALSE (!is_vep))
3002 if (VPPCOM_DEBUG > 0)
3003 clib_warning ("ERROR: vep_idx (%u) is not a vep!", vep_idx);
3007 if ((VPPCOM_DEBUG > 0) && (PREDICT_FALSE (vep_next_sid == ~0)))
3009 clib_warning ("WARNING: vep_idx (%u) is empty!", vep_idx);
3019 for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
3020 sid != ~0; sid = next_sid)
3022 u32 session_events, et_mask, clear_et_mask, session_vep_idx;
3023 u8 add_event, is_vep_session;
3025 u64 session_ev_data;
3027 VCL_LOCK_AND_GET_SESSION (sid, &session);
3028 next_sid = session->vep.next_sid;
3029 session_events = session->vep.ev.events;
3030 et_mask = session->vep.et_mask;
3031 is_vep = session->is_vep;
3032 is_vep_session = session->is_vep_session;
3033 session_vep_idx = session->vep.vep_idx;
3034 session_ev_data = session->vep.ev.data.u64;
3035 clib_spinlock_unlock (&vcm->sessions_lockp);
3037 if (PREDICT_FALSE (is_vep))
3039 if (VPPCOM_DEBUG > 0)
3040 clib_warning ("ERROR: sid (%u) is a vep!", vep_idx);
3044 if (PREDICT_FALSE (!is_vep_session))
3046 if (VPPCOM_DEBUG > 0)
3047 clib_warning ("EPOLL_CTL_MOD: session (%u) is not "
3048 "a vep session!", sid);
3052 if (PREDICT_FALSE (session_vep_idx != vep_idx))
3054 clib_warning ("EPOLL_CTL_MOD: session (%u) "
3055 "vep_idx (%u) != vep_idx (%u)!",
3056 sid, session->vep.vep_idx, vep_idx);
3061 add_event = clear_et_mask = 0;
3063 if ((EPOLLIN & session_events) && (EPOLLIN & et_mask))
3065 VCL_LOCK_AND_GET_SESSION (sid, &session);
3066 ready = vppcom_session_read_ready (session, sid);
3067 clib_spinlock_unlock (&vcm->sessions_lockp);
3071 events[num_ev].events |= EPOLLIN;
3072 if (EPOLLET & session_events)
3073 clear_et_mask |= EPOLLIN;
3080 case VPPCOM_ECONNRESET:
3081 events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
3085 events[num_ev].events |= EPOLLERR;
3091 if ((EPOLLOUT & session_events) && (EPOLLOUT & et_mask))
3093 VCL_LOCK_AND_GET_SESSION (sid, &session);
3094 ready = vppcom_session_write_ready (session, sid);
3095 clib_spinlock_unlock (&vcm->sessions_lockp);
3099 events[num_ev].events |= EPOLLOUT;
3100 if (EPOLLET & session_events)
3101 clear_et_mask |= EPOLLOUT;
3108 case VPPCOM_ECONNRESET:
3109 events[num_ev].events |= EPOLLHUP;
3113 events[num_ev].events |= EPOLLERR;
3121 events[num_ev].data.u64 = session_ev_data;
3122 if (EPOLLONESHOT & session_events)
3124 VCL_LOCK_AND_GET_SESSION (sid, &session);
3125 session->vep.ev.events = 0;
3126 clib_spinlock_unlock (&vcm->sessions_lockp);
3129 if (num_ev == maxevents)
3131 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3132 vep_session->wait_cont_idx = next_sid;
3133 clib_spinlock_unlock (&vcm->sessions_lockp);
3137 if (wait_cont_idx != ~0)
3140 next_sid = vep_next_sid;
3141 else if (next_sid == wait_cont_idx)
3146 while ((num_ev == 0) && (clib_time_now (&vcm->clib_time) <= timeout));
3148 if (wait_cont_idx != ~0)
3150 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3151 vep_session->wait_cont_idx = ~0;
3152 clib_spinlock_unlock (&vcm->sessions_lockp);
3155 return (rv != VPPCOM_OK) ? rv : num_ev;
3159 vppcom_session_attr (uint32_t session_index, uint32_t op,
3160 void *buffer, uint32_t * buflen)
3162 vppcom_main_t *vcm = &vppcom_main;
3165 u32 *flags = buffer;
3166 vppcom_endpt_t *ep = buffer;
3168 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3171 case VPPCOM_ATTR_GET_NREAD:
3172 rv = vppcom_session_read_ready (session, session_index);
3173 if (VPPCOM_DEBUG > 0)
3174 clib_warning ("VPPCOM_ATTR_GET_NREAD: nread = %d", rv);
3178 case VPPCOM_ATTR_PEEK_NREAD:
3182 case VPPCOM_ATTR_GET_FLAGS:
3183 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3185 *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0);
3186 *buflen = sizeof (*flags);
3187 if (VPPCOM_DEBUG > 0)
3188 clib_warning ("VPPCOM_ATTR_GET_FLAGS: flags = 0x%08x, "
3189 "is_nonblocking = %u", *flags,
3190 session->is_nonblocking);
3196 case VPPCOM_ATTR_SET_FLAGS:
3197 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3199 session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0;
3200 if (VPPCOM_DEBUG > 0)
3201 clib_warning ("VPPCOM_ATTR_SET_FLAGS: flags = 0x%08x, "
3202 "is_nonblocking = %u", *flags,
3203 session->is_nonblocking);
3209 case VPPCOM_ATTR_GET_PEER_ADDR:
3210 if (buffer && buflen && (*buflen >= sizeof (*ep)))
3212 ep->vrf = session->vrf;
3213 ep->is_ip4 = session->peer_addr.is_ip4;
3214 ep->port = session->peer_port;
3215 if (session->peer_addr.is_ip4)
3216 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3217 sizeof (ip4_address_t));
3219 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3220 sizeof (ip6_address_t));
3221 *buflen = sizeof (*ep);
3222 if (VPPCOM_DEBUG > 0)
3223 clib_warning ("VPPCOM_ATTR_GET_PEER_ADDR: sid %u is_ip4 = %u, "
3224 "addr = %U, port %u", session_index,
3225 ep->is_ip4, format_ip46_address,
3226 &session->peer_addr.ip46, ep->is_ip4,
3227 clib_net_to_host_u16 (ep->port));
3233 case VPPCOM_ATTR_GET_LCL_ADDR:
3234 if (buffer && buflen && (*buflen >= sizeof (*ep)))
3236 ep->vrf = session->vrf;
3237 ep->is_ip4 = session->lcl_addr.is_ip4;
3238 ep->port = session->lcl_port;
3239 if (session->lcl_addr.is_ip4)
3240 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4,
3241 sizeof (ip4_address_t));
3243 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6,
3244 sizeof (ip6_address_t));
3245 *buflen = sizeof (*ep);
3246 if (VPPCOM_DEBUG > 0)
3247 clib_warning ("VPPCOM_ATTR_GET_LCL_ADDR: sid %u is_ip4 = %u, "
3248 "addr = %U port %d", session_index,
3249 ep->is_ip4, format_ip46_address,
3250 &session->lcl_addr.ip46, ep->is_ip4,
3251 clib_net_to_host_u16 (ep->port));
3257 case VPPCOM_ATTR_SET_REUSEADDR:
3260 case VPPCOM_ATTR_SET_BROADCAST:
3263 case VPPCOM_ATTR_SET_V6ONLY:
3266 case VPPCOM_ATTR_SET_KEEPALIVE:
3269 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3272 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3281 clib_spinlock_unlock (&vcm->sessions_lockp);
3286 vppcom_session_recvfrom (uint32_t session_index, void *buffer,
3287 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3289 vppcom_main_t *vcm = &vppcom_main;
3291 session_t *session = 0;
3295 clib_spinlock_lock (&vcm->sessions_lockp);
3296 rv = vppcom_session_at_index (session_index, &session);
3297 if (PREDICT_FALSE (rv))
3299 clib_spinlock_unlock (&vcm->sessions_lockp);
3300 if (VPPCOM_DEBUG > 0)
3301 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
3302 vcm->my_pid, session_index);
3305 ep->vrf = session->vrf;
3306 ep->is_ip4 = session->peer_addr.is_ip4;
3307 ep->port = session->peer_port;
3308 if (session->peer_addr.is_ip4)
3309 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3310 sizeof (ip4_address_t));
3312 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3313 sizeof (ip6_address_t));
3314 clib_spinlock_unlock (&vcm->sessions_lockp);
3318 rv = vppcom_session_read (session_index, buffer, buflen);
3319 else if (flags & MSG_PEEK)
3320 rv = vppcom_session_peek (session_index, buffer, buflen);
3323 clib_warning ("Unsupport flags for recvfrom %d", flags);
3324 rv = VPPCOM_EAFNOSUPPORT;
3331 vppcom_session_sendto (uint32_t session_index, void *buffer,
3332 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3337 else if (flags == 0)
3338 return (vppcom_session_write (session_index, buffer, buflen));
3340 // TBD check the flags and do the right thing
3341 return (vppcom_session_write (session_index, buffer, buflen));
3347 * fd.io coding-style-patch-verification: ON
3350 * eval: (c-set-style "gnu")