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>
26 #include <vppinfra/elog.h>
28 #define vl_typedefs /* define message structures */
29 #include <vpp/api/vpe_all_api_h.h>
32 /* declare message handlers for each api */
34 #define vl_endianfun /* define message structures */
35 #include <vpp/api/vpe_all_api_h.h>
38 /* instantiate all the print functions we know about */
39 #define vl_print(handle, ...)
41 #include <vpp/api/vpe_all_api_h.h>
45 /* Set VPPCOM_DEBUG_INIT 2 for connection debug,
46 * 3 for read/write debug output
48 * export VCL_DEBUG=<#> to set dynamically.
50 #define VPPCOM_DEBUG_INIT 1
52 #define VPPCOM_DEBUG_INIT 0
55 #define VPPCOM_DEBUG vcm->debug
58 * VPPCOM Private definitions and functions.
74 STATE_CLOSE_ON_EMPTY = 0x10,
75 STATE_DISCONNECT = 0x20,
79 #define SERVER_STATE_OPEN (STATE_ACCEPT|STATE_CLOSE_ON_EMPTY)
80 #define CLIENT_STATE_OPEN (STATE_CONNECT|STATE_CLOSE_ON_EMPTY)
82 typedef struct epoll_event vppcom_epoll_event_t;
89 vppcom_epoll_event_t ev;
90 #define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT)
91 #define VEP_UNSUPPORTED_EVENTS (EPOLLONESHOT|EPOLLEXCLUSIVE)
103 volatile session_state_t state;
105 svm_fifo_t *server_rx_fifo;
106 svm_fifo_t *server_tx_fifo;
111 svm_queue_t *vpp_event_queue;
113 /* Socket configuration state */
114 /* TBD: covert 'is_*' vars to bit in u8 flags; */
124 vppcom_ip46_t lcl_addr;
125 vppcom_ip46_t peer_addr;
126 u16 lcl_port; // network order
127 u16 peer_port; // network order
129 u64 client_queue_address;
131 elog_track_t elog_track;
134 typedef struct vppcom_cfg_t_
137 u32 vpp_api_q_length;
140 u32 add_segment_size;
141 u32 preallocated_fifo_pairs;
144 u32 event_queue_size;
145 u32 listen_queue_size;
146 u8 app_proxy_transport_tcp;
147 u8 app_proxy_transport_udp;
151 u64 namespace_secret;
156 char *event_log_path;
159 typedef struct vppcom_main_t_
163 u32 *client_session_index_fifo;
166 /* vpe input queue */
167 svm_queue_t *vl_input_queue;
169 /* API client handle */
173 clib_spinlock_t sessions_lockp;
176 /* Hash table for disconnect processing */
177 uword *session_index_by_vpp_handles;
180 clib_bitmap_t *rd_bitmap;
181 clib_bitmap_t *wr_bitmap;
182 clib_bitmap_t *ex_bitmap;
184 /* Our event queue */
185 svm_queue_t *app_event_queue;
187 /* unique segment name counter */
188 u32 unique_segment_index;
190 /* For deadman timers */
191 clib_time_t clib_time;
193 /* State of the connection, shared between msg RX thread and main thread */
194 volatile app_state_t app_state;
199 elog_main_t elog_main;
200 elog_track_t elog_track;
202 /* VNET_API_ERROR_FOO -> "Foo" hash table */
203 uword *error_string_by_error_number;
206 /* NOTE: _vppcom_main is only used until the heap is allocated.
207 * Do not access it directly -- use vcm which will point to
208 * the heap allocated copy after init.
210 static vppcom_main_t _vppcom_main = {
211 .debug = VPPCOM_DEBUG_INIT,
212 .my_client_index = ~0
215 static vppcom_main_t *vcm = &_vppcom_main;
217 #define VCL_LOCK_AND_GET_SESSION(I, S) \
219 clib_spinlock_lock (&vcm->sessions_lockp); \
220 rv = vppcom_session_at_index (I, S); \
221 if (PREDICT_FALSE (rv)) \
223 clib_spinlock_unlock (&vcm->sessions_lockp); \
224 clib_warning ("[%s] ERROR: Invalid ##I (%u)!", \
231 vppcom_app_state_str (app_state_t state)
237 case STATE_APP_START:
238 st = "STATE_APP_START";
241 case STATE_APP_CONN_VPP:
242 st = "STATE_APP_CONN_VPP";
245 case STATE_APP_ENABLED:
246 st = "STATE_APP_ENABLED";
249 case STATE_APP_ATTACHED:
250 st = "STATE_APP_ATTACHED";
254 st = "UNKNOWN_APP_STATE";
262 vppcom_session_state_str (session_state_t state)
273 st = "STATE_CONNECT";
284 case STATE_CLOSE_ON_EMPTY:
285 st = "STATE_CLOSE_ON_EMPTY";
288 case STATE_DISCONNECT:
289 st = "STATE_DISCONNECT";
297 st = "UNKNOWN_STATE";
305 * VPPCOM Utility Functions
308 vppcom_session_at_index (u32 session_index, session_t * volatile *sess)
310 /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */
311 if (PREDICT_FALSE ((session_index == ~0) ||
312 pool_is_free_index (vcm->sessions, session_index)))
314 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
315 getpid (), session_index);
316 return VPPCOM_EBADFD;
318 *sess = pool_elt_at_index (vcm->sessions, session_index);
323 vppcom_session_table_add_listener (u64 listener_handle, u32 value)
325 /* Session and listener handles have different formats. The latter has
326 * the thread index in the upper 32 bits while the former has the session
327 * type. Knowing that, for listeners we just flip the MSB to 1 */
328 listener_handle |= 1ULL << 63;
329 hash_set (vcm->session_index_by_vpp_handles, listener_handle, value);
332 static inline session_t *
333 vppcom_session_table_lookup_listener (u64 listener_handle)
336 u64 handle = listener_handle | (1ULL << 63);
339 p = hash_get (vcm->session_index_by_vpp_handles, handle);
342 clib_warning ("[%d] couldn't find listen session: unknown vpp "
343 "listener handle %llx", getpid (), listener_handle);
346 if (pool_is_free_index (vcm->sessions, p[0]))
348 if (VPPCOM_DEBUG > 1)
349 clib_warning ("[%d] invalid listen session, sid (%u)", getpid (),
354 session = pool_elt_at_index (vcm->sessions, p[0]);
355 ASSERT (session->is_listen);
360 vppcom_session_table_del_listener (u64 listener_handle)
362 listener_handle |= 1ULL << 63;
363 hash_unset (vcm->session_index_by_vpp_handles, listener_handle);
369 elog_main_t *em = &vcm->elog_main;
371 clib_error_t *error = 0;
374 (char *) format (0, "%s/%d-%d-vcl-elog%c", vcm->cfg.event_log_path,
375 vcm->my_client_index, getpid (), 0);
376 error = elog_write_file (em, chroot_file, 1 /* flush ring */ );
379 clib_error_report (error);
381 if (VPPCOM_DEBUG > 0)
382 clib_warning ("[%d] Event Log:'%s' ", getpid (), chroot_file);
387 vppcom_connect_to_vpp (char *app_name)
389 api_main_t *am = &api_main;
392 if (VPPCOM_DEBUG > 0)
393 printf ("\nConnecting to VPP api...");
394 if (vl_client_connect_to_vlib ("/vpe-api", app_name,
395 vcm->cfg.vpp_api_q_length) < 0)
397 clib_warning ("[%d] connect to vpp (%s) failed!", getpid (), app_name);
398 rv = VPPCOM_ECONNREFUSED;
403 vcm->vl_input_queue = am->shmem_hdr->vl_input_queue;
404 vcm->my_client_index = am->my_client_index;
405 vcm->app_state = STATE_APP_CONN_VPP;
407 if (VPPCOM_DEBUG > 0)
408 printf (" connected!\n");
411 if (VPPCOM_DEBUG > 0)
413 vcm->elog_main.lock =
414 clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
415 vcm->elog_main.lock[0] = 0;
416 vcm->elog_main.event_ring_size = vcm->cfg.event_ring_size;
417 elog_init (&vcm->elog_main, vcm->elog_main.event_ring_size);
418 elog_enable_disable (&vcm->elog_main, 1);
420 vcm->elog_track.name =
421 (char *) format (0, "P:%d:C:%d%c", getpid (),
422 vcm->my_client_index, 0);
423 elog_track_register (&vcm->elog_main, &vcm->elog_track);
425 ELOG_TYPE_DECLARE (e) =
427 .format = "connect_vpp:rv:%d",.format_args = "i4",};
432 ed = ELOG_TRACK_DATA (&vcm->elog_main, e, vcm->elog_track);
440 format_api_error (u8 * s, va_list * args)
442 i32 error = va_arg (*args, u32);
445 p = hash_get (vcm->error_string_by_error_number, -error);
448 s = format (s, "%s (%d)", p[0], error);
450 s = format (s, "%d", error);
455 vppcom_init_error_string_table (void)
457 vcm->error_string_by_error_number = hash_create (0, sizeof (uword));
459 #define _(n,v,s) hash_set (vcm->error_string_by_error_number, -v, s);
460 foreach_vnet_api_error;
463 hash_set (vcm->error_string_by_error_number, 99, "Misc");
467 vppcom_wait_for_app_state_change (app_state_t app_state)
469 f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
471 while (clib_time_now (&vcm->clib_time) < timeout)
473 if (vcm->app_state == app_state)
476 if (VPPCOM_DEBUG > 0)
477 clib_warning ("[%d] timeout waiting for state %s (%d)", getpid (),
478 vppcom_app_state_str (app_state), app_state);
479 return VPPCOM_ETIMEDOUT;
483 vppcom_wait_for_session_state_change (u32 session_index,
484 session_state_t state,
487 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
488 session_t *volatile session;
493 clib_spinlock_lock (&vcm->sessions_lockp);
494 rv = vppcom_session_at_index (session_index, &session);
495 if (PREDICT_FALSE (rv))
497 clib_spinlock_unlock (&vcm->sessions_lockp);
500 if (session->state == state)
502 clib_spinlock_unlock (&vcm->sessions_lockp);
505 if (session->state == STATE_FAILED)
507 clib_spinlock_unlock (&vcm->sessions_lockp);
508 return VPPCOM_ECONNREFUSED;
511 clib_spinlock_unlock (&vcm->sessions_lockp);
513 while (clib_time_now (&vcm->clib_time) < timeout);
515 if (VPPCOM_DEBUG > 0)
516 clib_warning ("[%d] timeout waiting for state 0x%x (%s)", getpid (),
517 state, vppcom_session_state_str (state));
518 return VPPCOM_ETIMEDOUT;
522 vppcom_wait_for_client_session_index (f64 wait_for_time)
524 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
528 if (clib_fifo_elts (vcm->client_session_index_fifo))
531 while (clib_time_now (&vcm->clib_time) < timeout);
533 if (wait_for_time == 0)
534 return VPPCOM_EAGAIN;
536 if (VPPCOM_DEBUG > 0)
537 clib_warning ("[%d] timeout waiting for client_session_index", getpid ());
538 return VPPCOM_ETIMEDOUT;
542 * VPP-API message functions
545 vppcom_send_session_enable_disable (u8 is_enable)
547 vl_api_session_enable_disable_t *bmp;
548 bmp = vl_msg_api_alloc (sizeof (*bmp));
549 memset (bmp, 0, sizeof (*bmp));
551 bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE);
552 bmp->client_index = vcm->my_client_index;
553 bmp->context = htonl (0xfeedface);
554 bmp->is_enable = is_enable;
555 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
559 vppcom_app_session_enable (void)
563 if (vcm->app_state != STATE_APP_ENABLED)
565 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
566 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
567 if (PREDICT_FALSE (rv))
569 if (VPPCOM_DEBUG > 0)
570 clib_warning ("[%d] application session enable timed out! "
572 getpid (), rv, vppcom_retval_str (rv));
580 vl_api_session_enable_disable_reply_t_handler
581 (vl_api_session_enable_disable_reply_t * mp)
585 clib_warning ("[%d] session_enable_disable failed: %U", getpid (),
586 format_api_error, ntohl (mp->retval));
589 vcm->app_state = STATE_APP_ENABLED;
593 vppcom_app_send_attach (void)
595 vl_api_application_attach_t *bmp;
596 u8 nsid_len = vec_len (vcm->cfg.namespace_id);
597 u8 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp ||
598 vcm->cfg.app_proxy_transport_udp);
600 bmp = vl_msg_api_alloc (sizeof (*bmp));
601 memset (bmp, 0, sizeof (*bmp));
603 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
604 bmp->client_index = vcm->my_client_index;
605 bmp->context = htonl (0xfeedface);
606 bmp->options[APP_OPTIONS_FLAGS] =
607 APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT |
608 (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) |
609 (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) |
610 (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0);
611 bmp->options[APP_OPTIONS_PROXY_TRANSPORT] =
612 (vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) |
613 (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0);
614 bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size;
615 bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size;
616 bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size;
617 bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size;
618 bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
619 vcm->cfg.preallocated_fifo_pairs;
620 bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size;
623 bmp->namespace_id_len = nsid_len;
624 clib_memcpy (bmp->namespace_id, vcm->cfg.namespace_id, nsid_len);
625 bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret;
627 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
631 vppcom_app_attach (void)
635 vppcom_app_send_attach ();
636 rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
637 if (PREDICT_FALSE (rv))
639 if (VPPCOM_DEBUG > 0)
640 clib_warning ("[%d] application attach timed out! returning %d (%s)",
641 getpid (), rv, vppcom_retval_str (rv));
648 vppcom_app_detach (void)
650 vl_api_application_detach_t *bmp;
651 bmp = vl_msg_api_alloc (sizeof (*bmp));
652 memset (bmp, 0, sizeof (*bmp));
654 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
655 bmp->client_index = vcm->my_client_index;
656 bmp->context = htonl (0xfeedface);
657 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
661 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
664 static svm_fifo_segment_create_args_t _a;
665 svm_fifo_segment_create_args_t *a = &_a;
668 memset (a, 0, sizeof (*a));
671 clib_warning ("[%d] attach failed: %U", getpid (),
672 format_api_error, ntohl (mp->retval));
676 if (mp->segment_name_length == 0)
678 clib_warning ("[%d] segment_name_length zero", getpid ());
682 a->segment_name = (char *) mp->segment_name;
683 a->segment_size = mp->segment_size;
685 ASSERT (mp->app_event_queue_address);
687 /* Attach to the segment vpp created */
688 rv = svm_fifo_segment_attach (a);
689 vec_reset_length (a->new_segment_indices);
690 if (PREDICT_FALSE (rv))
692 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed", getpid (),
697 vcm->app_event_queue =
698 uword_to_pointer (mp->app_event_queue_address, svm_queue_t *);
700 vcm->app_state = STATE_APP_ATTACHED;
704 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
708 clib_warning ("[%d] detach failed: %U", getpid (), format_api_error,
711 vcm->app_state = STATE_APP_ENABLED;
715 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
719 clib_warning ("[%d] vpp handle 0x%llx: disconnect session failed: %U",
720 getpid (), mp->handle, format_api_error,
725 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
727 static svm_fifo_segment_create_args_t _a;
728 svm_fifo_segment_create_args_t *a = &_a;
731 memset (a, 0, sizeof (*a));
732 a->segment_name = (char *) mp->segment_name;
733 a->segment_size = mp->segment_size;
734 /* Attach to the segment vpp created */
735 rv = svm_fifo_segment_attach (a);
736 vec_reset_length (a->new_segment_indices);
737 if (PREDICT_FALSE (rv))
739 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
740 getpid (), mp->segment_name);
743 if (VPPCOM_DEBUG > 1)
744 clib_warning ("[%d] mapped new segment '%s' size %d", getpid (),
745 mp->segment_name, mp->segment_size);
749 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
753 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
757 session_t *session = 0;
758 u32 session_index = p[0];
760 VCL_LOCK_AND_GET_SESSION (session_index, &session);
761 session->state = STATE_CLOSE_ON_EMPTY;
763 if (VPPCOM_DEBUG > 1)
764 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
765 "setting state to 0x%x (%s)",
766 getpid (), mp->handle, session_index, session->state,
767 vppcom_session_state_str (session->state));
768 clib_spinlock_unlock (&vcm->sessions_lockp);
772 if (VPPCOM_DEBUG > 1)
773 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
774 "session lookup failed!",
775 getpid (), mp->handle, session_index);
778 clib_warning ("[%d] vpp handle 0x%llx: session lookup by "
779 "handle failed!", getpid (), mp->handle);
783 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
785 session_t *session = 0;
786 vl_api_reset_session_reply_t *rmp;
790 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
794 clib_spinlock_lock (&vcm->sessions_lockp);
795 rval = vppcom_session_at_index (p[0], &session);
796 if (PREDICT_FALSE (rval))
798 rv = VNET_API_ERROR_INVALID_VALUE_2;
799 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
800 "session lookup failed! returning %d %U",
801 getpid (), mp->handle, p[0],
802 rv, format_api_error, rv);
806 /* TBD: should this disconnect immediately and
809 session->state = STATE_CLOSE_ON_EMPTY;
811 if (VPPCOM_DEBUG > 1)
812 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
813 "state set to %d (%s)!", getpid (),
814 mp->handle, p[0], session->state,
815 vppcom_session_state_str (session->state));
817 clib_spinlock_unlock (&vcm->sessions_lockp);
821 rv = VNET_API_ERROR_INVALID_VALUE;
822 clib_warning ("[%d] ERROR: vpp handle 0x%llx: session lookup "
823 "failed! returning %d %U",
824 getpid (), mp->handle, rv, format_api_error, rv);
827 rmp = vl_msg_api_alloc (sizeof (*rmp));
828 memset (rmp, 0, sizeof (*rmp));
829 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
830 rmp->retval = htonl (rv);
831 rmp->handle = mp->handle;
832 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
836 vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
838 session_t *session = 0;
840 svm_fifo_t *rx_fifo, *tx_fifo;
844 session_index = mp->context;
845 VCL_LOCK_AND_GET_SESSION (session_index, &session);
849 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
850 "connect failed! %U",
851 getpid (), mp->handle, session_index,
852 format_api_error, ntohl (mp->retval));
855 session->state = STATE_FAILED;
856 session->vpp_handle = mp->handle;
860 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
861 "Invalid session index (%u)!",
862 getpid (), mp->handle, session_index);
870 /* We've been redirected */
871 if (mp->segment_name_length > 0)
873 static svm_fifo_segment_create_args_t _a;
874 svm_fifo_segment_create_args_t *a = &_a;
877 memset (a, 0, sizeof (*a));
878 a->segment_name = (char *) mp->segment_name;
879 if (VPPCOM_DEBUG > 1)
880 clib_warning ("[%d] cut-thru segment: %s\n",
881 getpid (), a->segment_name);
883 rv = svm_fifo_segment_attach (a);
884 vec_reset_length (a->new_segment_indices);
885 if (PREDICT_FALSE (rv))
887 clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
888 getpid (), a->segment_name);
896 session->is_cut_thru = is_cut_thru;
897 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
900 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
901 rx_fifo->client_session_index = session_index;
902 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
903 tx_fifo->client_session_index = session_index;
905 session->server_rx_fifo = rx_fifo;
906 session->server_tx_fifo = tx_fifo;
907 session->vpp_handle = mp->handle;
908 session->lcl_addr.is_ip4 = mp->is_ip4;
909 clib_memcpy (&session->lcl_addr.ip46, mp->lcl_ip,
910 sizeof (session->peer_addr.ip46));
911 session->lcl_port = mp->lcl_port;
912 session->state = STATE_CONNECT;
914 /* Add it to lookup table */
915 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
917 if (VPPCOM_DEBUG > 1)
918 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connect succeeded!"
919 " session_rx_fifo %p, refcnt %d,"
920 " session_tx_fifo %p, refcnt %d",
921 getpid (), mp->handle, session_index,
922 session->server_rx_fifo,
923 session->server_rx_fifo->refcnt,
924 session->server_tx_fifo, session->server_tx_fifo->refcnt);
926 clib_spinlock_unlock (&vcm->sessions_lockp);
930 vppcom_send_connect_sock (session_t * session, u32 session_index)
932 vl_api_connect_sock_t *cmp;
934 /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
935 session->is_server = 0;
936 cmp = vl_msg_api_alloc (sizeof (*cmp));
937 memset (cmp, 0, sizeof (*cmp));
938 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
939 cmp->client_index = vcm->my_client_index;
940 cmp->context = session_index;
942 cmp->vrf = session->vrf;
943 cmp->is_ip4 = session->peer_addr.is_ip4;
944 clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip));
945 cmp->port = session->peer_port;
946 cmp->proto = session->proto;
947 clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
948 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
952 vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index,
955 vl_api_disconnect_session_reply_t *rmp;
957 if (VPPCOM_DEBUG > 1)
958 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg",
959 getpid (), vpp_handle, session_index);
961 rmp = vl_msg_api_alloc (sizeof (*rmp));
962 memset (rmp, 0, sizeof (*rmp));
964 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
965 rmp->retval = htonl (rv);
966 rmp->handle = vpp_handle;
967 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
971 vppcom_send_disconnect_session (u64 vpp_handle, u32 session_index)
973 vl_api_disconnect_session_t *dmp;
975 if (VPPCOM_DEBUG > 1)
976 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg",
977 getpid (), vpp_handle, session_index);
979 dmp = vl_msg_api_alloc (sizeof (*dmp));
980 memset (dmp, 0, sizeof (*dmp));
981 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
982 dmp->client_index = vcm->my_client_index;
983 dmp->handle = vpp_handle;
984 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
988 vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
990 session_t *session = 0;
991 u32 session_index = mp->context;
994 VCL_LOCK_AND_GET_SESSION (session_index, &session);
998 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
999 getpid (), mp->handle, session_index, format_api_error,
1000 ntohl (mp->retval));
1001 rv = vppcom_session_at_index (session_index, &session);
1002 if (rv == VPPCOM_OK)
1004 session->state = STATE_FAILED;
1005 session->vpp_handle = mp->handle;
1009 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
1010 "Invalid session index (%u)!",
1011 getpid (), mp->handle, session_index);
1016 session->vpp_handle = mp->handle;
1017 session->lcl_addr.is_ip4 = mp->lcl_is_ip4;
1018 clib_memcpy (&session->lcl_addr.ip46, mp->lcl_ip,
1019 sizeof (session->peer_addr.ip46));
1020 session->lcl_port = mp->lcl_port;
1021 vppcom_session_table_add_listener (mp->handle, session_index);
1022 session->is_listen = 1;
1023 session->state = STATE_LISTEN;
1025 if (VPPCOM_DEBUG > 1)
1026 clib_warning ("[%d] vpp handle 0x%llx, sid %u: bind succeeded!",
1027 getpid (), mp->handle, mp->context);
1029 clib_spinlock_unlock (&vcm->sessions_lockp);
1033 vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
1036 clib_warning ("[%d] ERROR: sid %u: unbind failed: %U",
1037 getpid (), mp->context, format_api_error,
1038 ntohl (mp->retval));
1040 else if (VPPCOM_DEBUG > 1)
1041 clib_warning ("[%d] sid %u: unbind succeeded!", getpid (), mp->context);
1045 format_ip4_address (u8 * s, va_list * args)
1047 u8 *a = va_arg (*args, u8 *);
1048 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
1052 format_ip6_address (u8 * s, va_list * args)
1054 ip6_address_t *a = va_arg (*args, ip6_address_t *);
1055 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
1057 i_max_n_zero = ARRAY_LEN (a->as_u16);
1059 i_first_zero = i_max_n_zero;
1061 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1063 u32 is_zero = a->as_u16[i] == 0;
1064 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
1070 if ((!is_zero && n_zeros > max_n_zeros)
1071 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
1073 i_max_n_zero = i_first_zero;
1074 max_n_zeros = n_zeros;
1075 i_first_zero = ARRAY_LEN (a->as_u16);
1080 last_double_colon = 0;
1081 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1083 if (i == i_max_n_zero && max_n_zeros > 1)
1085 s = format (s, "::");
1086 i += max_n_zeros - 1;
1087 last_double_colon = 1;
1091 s = format (s, "%s%x",
1092 (last_double_colon || i == 0) ? "" : ":",
1093 clib_net_to_host_u16 (a->as_u16[i]));
1094 last_double_colon = 0;
1101 /* Format an IP46 address. */
1103 format_ip46_address (u8 * s, va_list * args)
1105 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1106 ip46_type_t type = va_arg (*args, ip46_type_t);
1112 is_ip4 = ip46_address_is_ip4 (ip46);
1123 format (s, "%U", format_ip4_address, &ip46->ip4) :
1124 format (s, "%U", format_ip6_address, &ip46->ip6);
1128 vppcom_send_accept_session_reply (u64 handle, u32 context, int retval)
1130 vl_api_accept_session_reply_t *rmp;
1132 rmp = vl_msg_api_alloc (sizeof (*rmp));
1133 memset (rmp, 0, sizeof (*rmp));
1134 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1135 rmp->retval = htonl (retval);
1136 rmp->context = context;
1137 rmp->handle = handle;
1138 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1142 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
1144 svm_fifo_t *rx_fifo, *tx_fifo;
1145 session_t *session, *listen_session;
1148 clib_spinlock_lock (&vcm->sessions_lockp);
1149 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1151 clib_warning ("[%d] client session queue is full!", getpid ());
1152 vppcom_send_accept_session_reply (mp->handle, mp->context,
1153 VNET_API_ERROR_QUEUE_FULL);
1154 clib_spinlock_unlock (&vcm->sessions_lockp);
1158 listen_session = vppcom_session_table_lookup_listener (mp->listener_handle);
1159 if (!listen_session)
1161 clib_warning ("[%d] ERROR: couldn't find listen session: unknown vpp "
1162 "listener handle %llx", getpid (), mp->listener_handle);
1163 clib_spinlock_unlock (&vcm->sessions_lockp);
1167 /* Allocate local session and set it up */
1168 pool_get (vcm->sessions, session);
1169 memset (session, 0, sizeof (*session));
1170 session_index = session - vcm->sessions;
1172 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
1173 rx_fifo->client_session_index = session_index;
1174 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
1175 tx_fifo->client_session_index = session_index;
1177 session->vpp_handle = mp->handle;
1178 session->client_context = mp->context;
1179 session->server_rx_fifo = rx_fifo;
1180 session->server_tx_fifo = tx_fifo;
1181 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
1183 session->state = STATE_ACCEPT;
1184 session->is_cut_thru = 0;
1185 session->is_server = 1;
1186 session->peer_port = mp->port;
1187 session->peer_addr.is_ip4 = mp->is_ip4;
1188 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1189 sizeof (session->peer_addr.ip46));
1191 /* Add it to lookup table */
1192 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
1193 session->lcl_port = listen_session->lcl_port;
1194 session->lcl_addr = listen_session->lcl_addr;
1196 /* TBD: move client_session_index_fifo into listener session */
1197 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1199 clib_spinlock_unlock (&vcm->sessions_lockp);
1201 if (VPPCOM_DEBUG > 1)
1202 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client accept "
1203 "request from %s address %U port %d queue %p!", getpid (),
1204 mp->handle, session_index, mp->is_ip4 ? "IPv4" : "IPv6",
1205 format_ip46_address, &mp->ip, mp->is_ip4,
1206 clib_net_to_host_u16 (mp->port), session->vpp_event_queue);
1210 vppcom_send_connect_session_reply (session_t * session, u32 session_index,
1211 u64 vpp_handle, u32 context, int retval)
1213 vl_api_connect_session_reply_t *rmp;
1215 svm_queue_t *client_q;
1217 rmp = vl_msg_api_alloc (sizeof (*rmp));
1218 memset (rmp, 0, sizeof (*rmp));
1219 rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
1223 rmp->context = context;
1224 rmp->handle = vpp_handle;
1225 rmp->retval = htonl (retval);
1226 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1230 rmp->context = session->client_context;
1231 rmp->retval = htonl (retval);
1232 rmp->handle = session->vpp_handle;
1233 rmp->server_rx_fifo = pointer_to_uword (session->server_rx_fifo);
1234 rmp->server_tx_fifo = pointer_to_uword (session->server_tx_fifo);
1235 rmp->vpp_event_queue_address = pointer_to_uword (session->vpp_event_queue);
1236 rmp->segment_size = vcm->cfg.segment_size;
1237 len = vec_len (session->segment_name);
1238 rmp->segment_name_length = clib_min (len, sizeof (rmp->segment_name));
1239 clib_memcpy (rmp->segment_name, session->segment_name,
1240 rmp->segment_name_length - 1);
1241 clib_memcpy (rmp->lcl_ip, session->peer_addr.ip46.as_u8,
1242 sizeof (rmp->lcl_ip));
1243 rmp->is_ip4 = session->peer_addr.is_ip4;
1244 rmp->lcl_port = session->peer_port;
1245 client_q = uword_to_pointer (session->client_queue_address, svm_queue_t *);
1247 vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
1251 * Acting as server for redirected connect requests
1254 vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
1257 session_t *session = 0;
1259 clib_spinlock_lock (&vcm->sessions_lockp);
1260 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1262 clib_spinlock_unlock (&vcm->sessions_lockp);
1264 if (VPPCOM_DEBUG > 1)
1265 clib_warning ("[%d] client session queue is full!", getpid ());
1267 /* TBD: Fix api to include vpp handle */
1268 vppcom_send_connect_session_reply (0 /* session */ , 0 /* sid */ ,
1269 0 /* handle */ , mp->context,
1270 VNET_API_ERROR_QUEUE_FULL);
1274 pool_get (vcm->sessions, session);
1275 memset (session, 0, sizeof (*session));
1276 session_index = session - vcm->sessions;
1278 session->client_context = mp->context;
1279 session->vpp_handle = session_index;
1280 session->client_queue_address = mp->client_queue_address;
1281 session->is_cut_thru = 1;
1282 session->is_server = 1;
1283 session->lcl_port = mp->port;
1284 session->lcl_addr.is_ip4 = mp->is_ip4;
1285 clib_memcpy (&session->lcl_addr.ip46, mp->ip,
1286 sizeof (session->lcl_addr.ip46));
1288 /* TBD: missing peer info in api msg.
1290 session->peer_addr.is_ip4 = mp->is_ip4;
1291 ASSERT (session->lcl_addr.is_ip4 == session->peer_addr.is_ip4);
1293 session->state = STATE_ACCEPT;
1294 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1295 if (VPPCOM_DEBUG > 1)
1296 clib_warning ("[%d] sid %u: Got a cut-thru connect request! "
1297 "clib_fifo_elts %u!\n", getpid (), session_index,
1298 clib_fifo_elts (vcm->client_session_index_fifo));
1299 clib_spinlock_unlock (&vcm->sessions_lockp);
1303 vppcom_send_bind_sock (session_t * session, u32 session_index)
1305 vl_api_bind_sock_t *bmp;
1307 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1308 session->is_server = 1;
1309 bmp = vl_msg_api_alloc (sizeof (*bmp));
1310 memset (bmp, 0, sizeof (*bmp));
1312 bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
1313 bmp->client_index = vcm->my_client_index;
1314 bmp->context = session_index;
1315 bmp->vrf = session->vrf;
1316 bmp->is_ip4 = session->lcl_addr.is_ip4;
1317 clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip));
1318 bmp->port = session->lcl_port;
1319 bmp->proto = session->proto;
1320 clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
1321 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
1325 vppcom_send_unbind_sock (u64 vpp_handle)
1327 vl_api_unbind_sock_t *ump;
1329 ump = vl_msg_api_alloc (sizeof (*ump));
1330 memset (ump, 0, sizeof (*ump));
1332 ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
1333 ump->client_index = vcm->my_client_index;
1334 ump->handle = vpp_handle;
1335 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
1339 vppcom_session_unbind (u32 session_index)
1341 session_t *session = 0;
1345 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1347 vpp_handle = session->vpp_handle;
1348 vppcom_session_table_del_listener (vpp_handle);
1349 session->vpp_handle = ~0;
1350 session->state = STATE_DISCONNECT;
1352 clib_spinlock_unlock (&vcm->sessions_lockp);
1354 if (VPPCOM_DEBUG > 1)
1355 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1356 "sending unbind msg! new state 0x%x (%s)",
1357 getpid (), vpp_handle, session_index,
1358 session->state, vppcom_session_state_str (session->state));
1360 vppcom_send_unbind_sock (vpp_handle);
1367 vppcom_session_disconnect (u32 session_index)
1371 u8 is_cut_thru, is_listen, is_server;
1373 session_state_t state;
1375 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1377 vpp_handle = session->vpp_handle;
1378 is_server = session->is_server;
1379 is_listen = session->is_listen;
1380 is_cut_thru = session->is_cut_thru;
1381 state = session->state;
1382 clib_spinlock_unlock (&vcm->sessions_lockp);
1384 if (VPPCOM_DEBUG > 1)
1386 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s state 0x%x (%s), "
1387 "is_cut_thru %d, is_listen %d",
1388 getpid (), vpp_handle, session_index,
1389 is_server ? "server" : "client",
1390 state, vppcom_session_state_str (state),
1391 is_cut_thru, is_listen);
1394 if (PREDICT_FALSE (is_listen))
1396 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
1397 "Cannot disconnect a listen socket!",
1398 getpid (), vpp_handle, session_index);
1403 /* Through the VPP host stack...
1405 else if (!is_cut_thru)
1407 /* The peer has already initiated the close,
1408 * so send the disconnect session reply.
1410 if (state & STATE_CLOSE_ON_EMPTY)
1412 vppcom_send_disconnect_session_reply (vpp_handle,
1413 session_index, 0 /* rv */ );
1414 if (VPPCOM_DEBUG > 1)
1415 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1416 "sending disconnect REPLY...",
1417 getpid (), vpp_handle, session_index);
1420 /* Otherwise, send a disconnect session msg...
1424 if (VPPCOM_DEBUG > 1)
1425 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1426 "sending disconnect...",
1427 getpid (), vpp_handle, session_index);
1429 vppcom_send_disconnect_session (vpp_handle, session_index);
1433 /* Cut-thru connections...
1435 * server: free fifos and segment allocated during connect/redirect
1436 * client: no cleanup required
1442 svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
1443 svm_fifo_segment_private_t *seg;
1445 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1447 if (VPPCOM_DEBUG > 1)
1448 clib_warning ("[%d] sid %d: freeing cut-thru fifos in "
1450 " server_rx_fifo %p, refcnt = %d"
1451 " server_tx_fifo %p, refcnt = %d",
1452 getpid (), session_index, session->sm_seg_index,
1453 session->server_rx_fifo,
1454 session->server_rx_fifo->refcnt,
1455 session->server_tx_fifo,
1456 session->server_tx_fifo->refcnt);
1458 seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
1459 svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
1460 FIFO_SEGMENT_RX_FREELIST);
1461 svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
1462 FIFO_SEGMENT_TX_FREELIST);
1463 svm_fifo_segment_delete (seg);
1465 /* TBD: Send cut-thru disconnect event to client */
1467 clib_spinlock_unlock (&vcm->sessions_lockp);
1471 /* TBD: Send cut-thru disconnect event to server */
1479 #define foreach_sock_msg \
1480 _(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
1481 _(BIND_SOCK_REPLY, bind_sock_reply) \
1482 _(UNBIND_SOCK_REPLY, unbind_sock_reply) \
1483 _(ACCEPT_SESSION, accept_session) \
1484 _(CONNECT_SOCK, connect_sock) \
1485 _(CONNECT_SESSION_REPLY, connect_session_reply) \
1486 _(DISCONNECT_SESSION, disconnect_session) \
1487 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1488 _(RESET_SESSION, reset_session) \
1489 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1490 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1491 _(MAP_ANOTHER_SEGMENT, map_another_segment)
1494 vppcom_api_hookup (void)
1497 vl_msg_api_set_handlers(VL_API_##N, #n, \
1498 vl_api_##n##_t_handler, \
1500 vl_api_##n##_t_endian, \
1501 vl_api_##n##_t_print, \
1502 sizeof(vl_api_##n##_t), 1);
1508 vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
1512 vcl_cfg->heapsize = (256ULL << 20);
1513 vcl_cfg->vpp_api_q_length = 1024;
1514 vcl_cfg->segment_baseva = 0x200000000ULL;
1515 vcl_cfg->segment_size = (256 << 20);
1516 vcl_cfg->add_segment_size = (128 << 20);
1517 vcl_cfg->preallocated_fifo_pairs = 8;
1518 vcl_cfg->rx_fifo_size = (1 << 20);
1519 vcl_cfg->tx_fifo_size = (1 << 20);
1520 vcl_cfg->event_queue_size = 2048;
1521 vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
1522 vcl_cfg->app_timeout = 10 * 60.0;
1523 vcl_cfg->session_timeout = 10 * 60.0;
1524 vcl_cfg->accept_timeout = 60.0;
1525 vcl_cfg->event_ring_size = (128 << 10);
1526 vcl_cfg->event_log_path = "/dev/shm";
1530 vppcom_cfg_heapsize (char *conf_fname)
1532 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1545 fp = fopen (conf_fname, "r");
1548 if (VPPCOM_DEBUG > 0)
1549 fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
1552 argv = calloc (1, sizeof (char *));
1558 if (fgets (inbuf, 4096, fp) == 0)
1560 p = strtok (inbuf, " \t\n");
1566 char **tmp = realloc (argv, argc * sizeof (char *));
1570 arg = strndup (p, 1024);
1573 argv[argc - 1] = arg;
1574 p = strtok (NULL, " \t\n");
1581 char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
1588 * Look for and parse the "heapsize" config parameter.
1589 * Manual since none of the clib infra has been bootstrapped yet.
1591 * Format: heapsize <nn>[mM][gG]
1594 for (i = 1; i < (argc - 1); i++)
1596 if (!strncmp (argv[i], "heapsize", 8))
1598 sizep = (u8 *) argv[i + 1];
1600 while (*sizep >= '0' && *sizep <= '9')
1603 size += *sizep++ - '0';
1607 if (VPPCOM_DEBUG > 0)
1608 clib_warning ("[%d] parse error '%s %s', "
1609 "using default heapsize %lld (0x%llx)",
1610 getpid (), argv[i], argv[i + 1],
1611 vcl_cfg->heapsize, vcl_cfg->heapsize);
1615 if (*sizep == 'g' || *sizep == 'G')
1616 vcl_cfg->heapsize = size << 30;
1617 else if (*sizep == 'm' || *sizep == 'M')
1618 vcl_cfg->heapsize = size << 20;
1621 if (VPPCOM_DEBUG > 0)
1622 clib_warning ("[%d] parse error '%s %s', "
1623 "using default heapsize %lld (0x%llx)",
1624 getpid (), argv[i], argv[i + 1],
1625 vcl_cfg->heapsize, vcl_cfg->heapsize);
1637 vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE,
1638 MAP_SHARED | MAP_ANONYMOUS, -1, 0);
1639 if (vcl_mem == MAP_FAILED)
1641 clib_unix_error ("[%d] ERROR: mmap(0, %lld == 0x%llx, "
1642 "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, "
1644 getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
1647 heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize);
1650 clib_warning ("[%d] ERROR: clib_mem_init() failed!", getpid ());
1653 vcl_mem = clib_mem_alloc (sizeof (_vppcom_main));
1656 clib_warning ("[%d] ERROR: clib_mem_alloc() failed!", getpid ());
1660 clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main));
1663 if (VPPCOM_DEBUG > 0)
1664 clib_warning ("[%d] allocated VCL heap = %p, size %lld (0x%llx)",
1665 getpid (), heap, vcl_cfg->heapsize, vcl_cfg->heapsize);
1669 vppcom_cfg_read (char *conf_fname)
1671 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1673 unformat_input_t _input, *input = &_input;
1674 unformat_input_t _line_input, *line_input = &_line_input;
1675 u8 vc_cfg_input = 0;
1678 u32 uid, gid, q_len;
1680 fd = open (conf_fname, O_RDONLY);
1683 if (VPPCOM_DEBUG > 0)
1684 clib_warning ("[%d] open configuration file '%s' failed!",
1685 getpid (), conf_fname);
1689 if (fstat (fd, &s) < 0)
1691 if (VPPCOM_DEBUG > 0)
1692 clib_warning ("[%d] failed to stat `%s'", getpid (), conf_fname);
1696 if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
1698 if (VPPCOM_DEBUG > 0)
1699 clib_warning ("[%d] not a regular file `%s'", getpid (), conf_fname);
1703 unformat_init_clib_file (input, fd);
1705 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1707 (void) unformat_user (input, unformat_line_input, line_input);
1708 unformat_skip_white_space (line_input);
1710 if (unformat (line_input, "vcl {"))
1718 if (unformat (line_input, "heapsize %s", &chroot_path))
1720 vec_terminate_c_string (chroot_path);
1721 if (VPPCOM_DEBUG > 0)
1722 clib_warning ("[%d] configured heapsize %s, "
1723 "actual heapsize %lld (0x%llx)",
1724 getpid (), chroot_path, vcl_cfg->heapsize,
1726 vec_free (chroot_path);
1728 else if (unformat (line_input, "api-prefix %s", &chroot_path))
1730 vec_terminate_c_string (chroot_path);
1731 vl_set_memory_root_path ((char *) chroot_path);
1732 if (VPPCOM_DEBUG > 0)
1733 clib_warning ("[%d] configured api-prefix %s",
1734 getpid (), chroot_path);
1735 chroot_path = 0; /* Don't vec_free() it! */
1737 else if (unformat (line_input, "vpp-api-q-length %d", &q_len))
1739 if (q_len < vcl_cfg->vpp_api_q_length)
1741 clib_warning ("[%d] ERROR: configured vpp-api-q-length "
1742 "(%u) is too small! Using default: %u ",
1743 getpid (), q_len, vcl_cfg->vpp_api_q_length);
1747 vcl_cfg->vpp_api_q_length = q_len;
1749 if (VPPCOM_DEBUG > 0)
1750 clib_warning ("[%d] configured vpp-api-q-length %u",
1751 getpid (), vcl_cfg->vpp_api_q_length);
1754 else if (unformat (line_input, "uid %d", &uid))
1756 vl_set_memory_uid (uid);
1757 if (VPPCOM_DEBUG > 0)
1758 clib_warning ("[%d] configured uid %d", getpid (), uid);
1760 else if (unformat (line_input, "gid %d", &gid))
1762 vl_set_memory_gid (gid);
1763 if (VPPCOM_DEBUG > 0)
1764 clib_warning ("[%d] configured gid %d", getpid (), gid);
1766 else if (unformat (line_input, "segment-baseva 0x%lx",
1767 &vcl_cfg->segment_baseva))
1769 if (VPPCOM_DEBUG > 0)
1770 clib_warning ("[%d] configured segment_baseva 0x%lx",
1771 getpid (), vcl_cfg->segment_baseva);
1773 else if (unformat (line_input, "segment-size 0x%lx",
1774 &vcl_cfg->segment_size))
1776 if (VPPCOM_DEBUG > 0)
1777 clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
1778 getpid (), vcl_cfg->segment_size,
1779 vcl_cfg->segment_size);
1781 else if (unformat (line_input, "segment-size %ld",
1782 &vcl_cfg->segment_size))
1784 if (VPPCOM_DEBUG > 0)
1785 clib_warning ("[%d] configured segment_size %ld (0x%lx)",
1786 getpid (), vcl_cfg->segment_size,
1787 vcl_cfg->segment_size);
1789 else if (unformat (line_input, "add-segment-size 0x%lx",
1790 &vcl_cfg->add_segment_size))
1792 if (VPPCOM_DEBUG > 0)
1794 ("[%d] configured add_segment_size 0x%lx (%ld)",
1795 getpid (), vcl_cfg->add_segment_size,
1796 vcl_cfg->add_segment_size);
1798 else if (unformat (line_input, "add-segment-size %ld",
1799 &vcl_cfg->add_segment_size))
1801 if (VPPCOM_DEBUG > 0)
1803 ("[%d] configured add_segment_size %ld (0x%lx)",
1804 getpid (), vcl_cfg->add_segment_size,
1805 vcl_cfg->add_segment_size);
1807 else if (unformat (line_input, "preallocated-fifo-pairs %d",
1808 &vcl_cfg->preallocated_fifo_pairs))
1810 if (VPPCOM_DEBUG > 0)
1811 clib_warning ("[%d] configured preallocated_fifo_pairs "
1812 "%d (0x%x)", getpid (),
1813 vcl_cfg->preallocated_fifo_pairs,
1814 vcl_cfg->preallocated_fifo_pairs);
1816 else if (unformat (line_input, "rx-fifo-size 0x%lx",
1817 &vcl_cfg->rx_fifo_size))
1819 if (VPPCOM_DEBUG > 0)
1820 clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
1821 getpid (), vcl_cfg->rx_fifo_size,
1822 vcl_cfg->rx_fifo_size);
1824 else if (unformat (line_input, "rx-fifo-size %ld",
1825 &vcl_cfg->rx_fifo_size))
1827 if (VPPCOM_DEBUG > 0)
1828 clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
1829 getpid (), vcl_cfg->rx_fifo_size,
1830 vcl_cfg->rx_fifo_size);
1832 else if (unformat (line_input, "tx-fifo-size 0x%lx",
1833 &vcl_cfg->tx_fifo_size))
1835 if (VPPCOM_DEBUG > 0)
1836 clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
1837 getpid (), vcl_cfg->tx_fifo_size,
1838 vcl_cfg->tx_fifo_size);
1840 else if (unformat (line_input, "tx-fifo-size %ld",
1841 &vcl_cfg->tx_fifo_size))
1843 if (VPPCOM_DEBUG > 0)
1844 clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
1845 getpid (), vcl_cfg->tx_fifo_size,
1846 vcl_cfg->tx_fifo_size);
1848 else if (unformat (line_input, "event-queue-size 0x%lx",
1849 &vcl_cfg->event_queue_size))
1851 if (VPPCOM_DEBUG > 0)
1852 clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
1853 getpid (), vcl_cfg->event_queue_size,
1854 vcl_cfg->event_queue_size);
1856 else if (unformat (line_input, "event-queue-size %ld",
1857 &vcl_cfg->event_queue_size))
1859 if (VPPCOM_DEBUG > 0)
1860 clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
1861 getpid (), vcl_cfg->event_queue_size,
1862 vcl_cfg->event_queue_size);
1864 else if (unformat (line_input, "listen-queue-size 0x%lx",
1865 &vcl_cfg->listen_queue_size))
1867 if (VPPCOM_DEBUG > 0)
1868 clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
1869 getpid (), vcl_cfg->listen_queue_size,
1870 vcl_cfg->listen_queue_size);
1872 else if (unformat (line_input, "listen-queue-size %ld",
1873 &vcl_cfg->listen_queue_size))
1875 if (VPPCOM_DEBUG > 0)
1876 clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
1877 getpid (), vcl_cfg->listen_queue_size,
1878 vcl_cfg->listen_queue_size);
1880 else if (unformat (line_input, "app-timeout %f",
1881 &vcl_cfg->app_timeout))
1883 if (VPPCOM_DEBUG > 0)
1884 clib_warning ("[%d] configured app_timeout %f",
1885 getpid (), vcl_cfg->app_timeout);
1887 else if (unformat (line_input, "session-timeout %f",
1888 &vcl_cfg->session_timeout))
1890 if (VPPCOM_DEBUG > 0)
1891 clib_warning ("[%d] configured session_timeout %f",
1892 getpid (), vcl_cfg->session_timeout);
1894 else if (unformat (line_input, "accept-timeout %f",
1895 &vcl_cfg->accept_timeout))
1897 if (VPPCOM_DEBUG > 0)
1898 clib_warning ("[%d] configured accept_timeout %f",
1899 getpid (), vcl_cfg->accept_timeout);
1901 else if (unformat (line_input, "app-proxy-transport-tcp"))
1903 vcl_cfg->app_proxy_transport_tcp = 1;
1904 if (VPPCOM_DEBUG > 0)
1905 clib_warning ("[%d] configured app_proxy_transport_tcp (%d)",
1906 getpid (), vcl_cfg->app_proxy_transport_tcp);
1908 else if (unformat (line_input, "app-proxy-transport-udp"))
1910 vcl_cfg->app_proxy_transport_udp = 1;
1911 if (VPPCOM_DEBUG > 0)
1912 clib_warning ("[%d] configured app_proxy_transport_udp (%d)",
1913 getpid (), vcl_cfg->app_proxy_transport_udp);
1915 else if (unformat (line_input, "app-scope-local"))
1917 vcl_cfg->app_scope_local = 1;
1918 if (VPPCOM_DEBUG > 0)
1919 clib_warning ("[%d] configured app_scope_local (%d)",
1920 getpid (), vcl_cfg->app_scope_local);
1922 else if (unformat (line_input, "app-scope-global"))
1924 vcl_cfg->app_scope_global = 1;
1925 if (VPPCOM_DEBUG > 0)
1926 clib_warning ("[%d] configured app_scope_global (%d)",
1927 getpid (), vcl_cfg->app_scope_global);
1929 else if (unformat (line_input, "namespace-secret %lu",
1930 &vcl_cfg->namespace_secret))
1932 if (VPPCOM_DEBUG > 0)
1934 ("[%d] configured namespace_secret %lu (0x%lx)",
1935 getpid (), vcl_cfg->namespace_secret,
1936 vcl_cfg->namespace_secret);
1938 else if (unformat (line_input, "namespace-id %v",
1939 &vcl_cfg->namespace_id))
1941 vl_api_application_attach_t *mp;
1942 u32 max_nsid_vec_len = sizeof (mp->namespace_id) - 1;
1943 u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id);
1944 if (nsid_vec_len > max_nsid_vec_len)
1946 _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len;
1947 if (VPPCOM_DEBUG > 0)
1948 clib_warning ("[%d] configured namespace_id is too long,"
1949 " truncated to %d characters!", getpid (),
1953 if (VPPCOM_DEBUG > 0)
1954 clib_warning ("[%d] configured namespace_id %v",
1955 getpid (), vcl_cfg->namespace_id);
1957 else if (unformat (line_input, "}"))
1960 if (VPPCOM_DEBUG > 0)
1961 clib_warning ("[%d] completed parsing vppcom config!",
1967 if (line_input->buffer[line_input->index] != '#')
1969 clib_warning ("[%d] Unknown vppcom config option: '%s'",
1971 &line_input->buffer[line_input->index]);
1978 unformat_free (input);
1986 * VPPCOM Public API functions
1989 vppcom_app_create (char *app_name)
1991 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
2002 vppcom_cfg_init (vcl_cfg);
2003 env_var_str = getenv (VPPCOM_ENV_DEBUG);
2007 if (sscanf (env_var_str, "%u", &tmp) != 1)
2008 clib_warning ("[%d] Invalid debug level specified in "
2009 "the environment variable "
2011 " (%s)!\n", getpid (), env_var_str);
2015 clib_warning ("[%d] configured debug level (%u) from "
2016 VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug);
2019 conf_fname = getenv (VPPCOM_ENV_CONF);
2022 conf_fname = VPPCOM_CONF_DEFAULT;
2023 if (VPPCOM_DEBUG > 0)
2024 clib_warning ("[%d] getenv '%s' failed!", getpid (),
2027 vppcom_cfg_heapsize (conf_fname);
2028 clib_fifo_validate (vcm->client_session_index_fifo,
2029 vcm->cfg.listen_queue_size);
2030 vppcom_cfg_read (conf_fname);
2031 env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID);
2034 u32 ns_id_vec_len = strlen (env_var_str);
2036 vec_reset_length (vcm->cfg.namespace_id);
2037 vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1);
2038 clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len);
2040 if (VPPCOM_DEBUG > 0)
2041 clib_warning ("[%d] configured namespace_id (%v) from "
2042 VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (),
2043 vcm->cfg.namespace_id);
2045 env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET);
2049 if (sscanf (env_var_str, "%lu", &tmp) != 1)
2050 clib_warning ("[%d] Invalid namespace secret specified in "
2051 "the environment variable "
2052 VPPCOM_ENV_APP_NAMESPACE_SECRET
2053 " (%s)!\n", getpid (), env_var_str);
2056 vcm->cfg.namespace_secret = tmp;
2057 if (VPPCOM_DEBUG > 0)
2058 clib_warning ("[%d] configured namespace secret (%lu) from "
2059 VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (),
2060 vcm->cfg.namespace_secret);
2063 if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP))
2065 vcm->cfg.app_proxy_transport_tcp = 1;
2066 if (VPPCOM_DEBUG > 0)
2067 clib_warning ("[%d] configured app_proxy_transport_tcp (%u) from "
2068 VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (),
2069 vcm->cfg.app_proxy_transport_tcp);
2071 if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP))
2073 vcm->cfg.app_proxy_transport_udp = 1;
2074 if (VPPCOM_DEBUG > 0)
2075 clib_warning ("[%d] configured app_proxy_transport_udp (%u) from "
2076 VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (),
2077 vcm->cfg.app_proxy_transport_udp);
2079 if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL))
2081 vcm->cfg.app_scope_local = 1;
2082 if (VPPCOM_DEBUG > 0)
2083 clib_warning ("[%d] configured app_scope_local (%u) from "
2084 VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (),
2085 vcm->cfg.app_scope_local);
2087 if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL))
2089 vcm->cfg.app_scope_global = 1;
2090 if (VPPCOM_DEBUG > 0)
2091 clib_warning ("[%d] configured app_scope_global (%u) from "
2092 VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (),
2093 vcm->cfg.app_scope_global);
2096 vcm->main_cpu = os_get_thread_index ();
2097 heap = clib_mem_get_per_cpu_heap ();
2098 h = mheap_header (heap);
2100 /* make the main heap thread-safe */
2101 h->flags |= MHEAP_FLAG_THREAD_SAFE;
2103 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
2105 clib_time_init (&vcm->clib_time);
2106 vppcom_init_error_string_table ();
2107 svm_fifo_segment_init (vcl_cfg->segment_baseva,
2108 20 /* timeout in secs */ );
2109 clib_spinlock_init (&vcm->sessions_lockp);
2110 vppcom_api_hookup ();
2113 if (vcm->my_client_index == ~0)
2115 vcm->app_state = STATE_APP_START;
2116 rv = vppcom_connect_to_vpp (app_name);
2119 clib_warning ("[%d] ERROR: couldn't connect to VPP!", getpid ());
2123 if (VPPCOM_DEBUG > 0)
2124 clib_warning ("[%d] sending session enable", getpid ());
2126 rv = vppcom_app_session_enable ();
2129 clib_warning ("[%d] ERROR: vppcom_app_session_enable() failed!",
2134 if (VPPCOM_DEBUG > 0)
2135 clib_warning ("[%d] sending app attach", getpid ());
2137 rv = vppcom_app_attach ();
2140 clib_warning ("[%d] ERROR: vppcom_app_attach() failed!", getpid ());
2144 if (VPPCOM_DEBUG > 0)
2145 clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
2146 getpid (), app_name, vcm->my_client_index,
2147 vcm->my_client_index);
2154 vppcom_app_destroy (void)
2158 if (vcm->my_client_index == ~0)
2161 if (VPPCOM_DEBUG > 0)
2162 clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
2163 getpid (), vcm->my_client_index, vcm->my_client_index);
2165 if (VPPCOM_DEBUG > 0)
2167 ELOG_TYPE_DECLARE (e) =
2169 .format = "app_detach:C:%d",.format_args = "i4",};
2174 ed = ELOG_TRACK_DATA (&vcm->elog_main, e, vcm->elog_track);
2175 ed->data = vcm->my_client_index;
2178 vppcom_app_detach ();
2179 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
2180 if (PREDICT_FALSE (rv))
2182 if (VPPCOM_DEBUG > 0)
2183 clib_warning ("[%d] application detach timed out! returning %d (%s)",
2184 getpid (), rv, vppcom_retval_str (rv));
2187 /* Finished with logging before client gets reset to ~0 */
2188 if (VPPCOM_DEBUG > 0)
2191 vl_client_disconnect_from_vlib ();
2192 vcm->my_client_index = ~0;
2193 vcm->app_state = STATE_APP_START;
2197 vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
2202 clib_spinlock_lock (&vcm->sessions_lockp);
2203 pool_get (vcm->sessions, session);
2204 memset (session, 0, sizeof (*session));
2205 session_index = session - vcm->sessions;
2208 session->proto = proto;
2209 session->state = STATE_START;
2210 session->is_nonblocking = is_nonblocking ? 1 : 0;
2211 session->vpp_handle = ~0;
2212 clib_spinlock_unlock (&vcm->sessions_lockp);
2214 if (VPPCOM_DEBUG > 0)
2215 clib_warning ("[%d] sid %u", getpid (), session_index);
2217 return (int) session_index;
2221 vppcom_session_close (uint32_t session_index)
2223 session_t *session = 0;
2232 session_state_t state;
2234 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2235 is_listen = session->is_listen;
2236 is_vep = session->is_vep;
2237 is_vep_session = session->is_vep_session;
2238 next_sid = session->vep.next_sid;
2239 vep_idx = session->vep.vep_idx;
2240 state = session->state;
2241 vpp_handle = session->vpp_handle;
2242 clib_spinlock_unlock (&vcm->sessions_lockp);
2244 if (VPPCOM_DEBUG > 0)
2247 clib_warning ("[%d] vep_idx %u / sid %u: closing epoll session...",
2248 getpid (), session_index, session_index);
2250 clib_warning ("[%d] vpp handle 0x%llx, sid %d: closing session...",
2251 getpid (), vpp_handle, session_index);
2256 while (next_sid != ~0)
2258 rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
2259 if ((VPPCOM_DEBUG > 0) && PREDICT_FALSE (rv < 0))
2260 clib_warning ("[%d] vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
2261 "vep_idx %u failed! rv %d (%s)", getpid (),
2262 vpp_handle, next_sid, vep_idx,
2263 rv, vppcom_retval_str (rv));
2265 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2266 next_sid = session->vep.next_sid;
2267 clib_spinlock_unlock (&vcm->sessions_lockp);
2274 rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
2275 if ((VPPCOM_DEBUG > 0) && (rv < 0))
2276 clib_warning ("[%d] vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
2277 "vep_idx %u failed! rv %d (%s)",
2278 getpid (), vpp_handle, session_index,
2279 vep_idx, rv, vppcom_retval_str (rv));
2284 if (state == STATE_LISTEN)
2286 rv = vppcom_session_unbind (session_index);
2287 if (PREDICT_FALSE (rv < 0))
2289 if (VPPCOM_DEBUG > 0)
2290 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
2291 "listener unbind failed! rv %d (%s)",
2292 getpid (), vpp_handle, session_index,
2293 rv, vppcom_retval_str (rv));
2298 else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN))
2300 rv = vppcom_session_disconnect (session_index);
2301 if (PREDICT_FALSE (rv < 0))
2302 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2303 "session disconnect failed! rv %d (%s)",
2304 getpid (), vpp_handle, session_index,
2305 rv, vppcom_retval_str (rv));
2309 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2310 vpp_handle = session->vpp_handle;
2311 if (vpp_handle != ~0)
2313 p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle);
2315 hash_unset (vcm->session_index_by_vpp_handles, vpp_handle);
2317 pool_put_index (vcm->sessions, session_index);
2318 clib_spinlock_unlock (&vcm->sessions_lockp);
2320 if (VPPCOM_DEBUG > 0)
2323 clib_warning ("[%d] vep_idx %u / sid %u: epoll session removed.",
2324 getpid (), session_index, session_index);
2326 clib_warning ("[%d] vpp handle 0x%llx, sid %u: session removed.",
2327 getpid (), vpp_handle, session_index);
2334 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
2336 session_t *session = 0;
2340 return VPPCOM_EINVAL;
2342 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2344 if (session->is_vep)
2346 clib_spinlock_unlock (&vcm->sessions_lockp);
2347 clib_warning ("[%d] ERROR: sid %u: cannot bind to an epoll session!",
2348 getpid (), session_index);
2353 session->vrf = ep->vrf;
2354 session->lcl_addr.is_ip4 = ep->is_ip4;
2355 session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip);
2356 session->lcl_port = ep->port;
2358 if (VPPCOM_DEBUG > 0)
2359 clib_warning ("[%d] sid %u: binding to local %s address %U "
2360 "port %u, proto %s", getpid (), session_index,
2361 session->lcl_addr.is_ip4 ? "IPv4" : "IPv6",
2362 format_ip46_address, &session->lcl_addr.ip46,
2363 session->lcl_addr.is_ip4,
2364 clib_net_to_host_u16 (session->lcl_port),
2365 session->proto ? "UDP" : "TCP");
2367 clib_spinlock_unlock (&vcm->sessions_lockp);
2373 vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
2375 session_t *listen_session = 0;
2376 u64 listen_vpp_handle;
2379 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2381 if (listen_session->is_vep)
2383 clib_spinlock_unlock (&vcm->sessions_lockp);
2384 clib_warning ("[%d] ERROR: sid %u: cannot listen on an "
2385 "epoll session!", getpid (), listen_session_index);
2390 listen_vpp_handle = listen_session->vpp_handle;
2391 if (listen_session->is_listen)
2393 clib_spinlock_unlock (&vcm->sessions_lockp);
2394 if (VPPCOM_DEBUG > 0)
2395 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
2396 "already in listen state!",
2397 getpid (), listen_vpp_handle, listen_session_index);
2402 if (VPPCOM_DEBUG > 0)
2403 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending bind request...",
2404 getpid (), listen_vpp_handle, listen_session_index);
2406 vppcom_send_bind_sock (listen_session, listen_session_index);
2407 clib_spinlock_unlock (&vcm->sessions_lockp);
2409 vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
2410 vcm->cfg.session_timeout);
2412 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2413 if (PREDICT_FALSE (retval))
2415 if (VPPCOM_DEBUG > 0)
2416 clib_warning ("[%d] vpp handle 0x%llx, sid %u: bind failed! "
2417 "returning %d (%s)", getpid (),
2418 listen_session->vpp_handle, listen_session_index,
2419 retval, vppcom_retval_str (retval));
2420 clib_spinlock_unlock (&vcm->sessions_lockp);
2425 clib_fifo_validate (vcm->client_session_index_fifo, q_len);
2426 clib_spinlock_unlock (&vcm->sessions_lockp);
2432 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
2433 uint32_t flags, double wait_for_time)
2435 session_t *listen_session = 0;
2436 session_t *client_session = 0;
2437 u32 client_session_index = ~0;
2441 u64 listen_vpp_handle;
2443 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2445 if (listen_session->is_vep)
2447 clib_spinlock_unlock (&vcm->sessions_lockp);
2448 clib_warning ("[%d] ERROR: sid %u: cannot accept on an "
2449 "epoll session!", getpid (), listen_session_index);
2454 listen_vpp_handle = listen_session->vpp_handle;
2455 if (listen_session->state != STATE_LISTEN)
2457 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2458 "not in listen state! state 0x%x (%s)", getpid (),
2459 listen_vpp_handle, listen_session_index,
2460 listen_session->state,
2461 vppcom_session_state_str (listen_session->state));
2462 clib_spinlock_unlock (&vcm->sessions_lockp);
2466 wait_for = ((listen_session->is_nonblocking) ? 0 :
2467 (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time);
2469 clib_spinlock_unlock (&vcm->sessions_lockp);
2473 rv = vppcom_wait_for_client_session_index (wait_for);
2476 if ((VPPCOM_DEBUG > 0))
2477 clib_warning ("[%d] vpp handle 0x%llx, sid %u: accept failed! "
2478 "returning %d (%s)", getpid (),
2479 listen_vpp_handle, listen_session_index,
2480 rv, vppcom_retval_str (rv));
2481 if ((wait_for == 0) || (wait_for_time > 0))
2488 clib_spinlock_lock (&vcm->sessions_lockp);
2489 clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
2490 rv = vppcom_session_at_index (client_session_index, &client_session);
2491 if (PREDICT_FALSE (rv))
2493 rv = VPPCOM_ECONNABORTED;
2494 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client sid %u "
2495 "lookup failed! returning %d (%s)", getpid (),
2496 listen_vpp_handle, listen_session_index,
2497 client_session_index, rv, vppcom_retval_str (rv));
2501 client_session->is_nonblocking = (flags & O_NONBLOCK) ? 1 : 0;
2502 if (VPPCOM_DEBUG > 0)
2503 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Got a client request! "
2504 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
2505 getpid (), listen_vpp_handle, listen_session_index,
2506 client_session->vpp_handle, client_session_index,
2507 flags, client_session->is_nonblocking);
2509 ep->vrf = client_session->vrf;
2510 ep->is_cut_thru = client_session->is_cut_thru;
2511 ep->is_ip4 = client_session->peer_addr.is_ip4;
2512 ep->port = client_session->peer_port;
2513 if (client_session->peer_addr.is_ip4)
2514 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4,
2515 sizeof (ip4_address_t));
2517 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6,
2518 sizeof (ip6_address_t));
2520 if (client_session->is_server && client_session->is_cut_thru)
2522 static svm_fifo_segment_create_args_t _a;
2523 svm_fifo_segment_create_args_t *a = &_a;
2524 svm_fifo_segment_private_t *seg;
2526 cut_thru_str = " cut-thru ";
2528 /* Create the segment */
2529 memset (a, 0, sizeof (*a));
2530 a->segment_name = (char *)
2531 format ((u8 *) a->segment_name, "%d:segment%d%c",
2532 getpid (), vcm->unique_segment_index++, 0);
2533 a->segment_size = vcm->cfg.segment_size;
2534 a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
2535 a->rx_fifo_size = vcm->cfg.rx_fifo_size;
2536 a->tx_fifo_size = vcm->cfg.tx_fifo_size;
2538 rv = svm_fifo_segment_create (a);
2539 if (PREDICT_FALSE (rv))
2541 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2542 "client sid %u svm_fifo_segment_create ('%s') "
2543 "failed! rv %d", getpid (), listen_vpp_handle,
2544 listen_session_index, client_session_index,
2545 a->segment_name, rv);
2546 vec_reset_length (a->new_segment_indices);
2547 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2548 vppcom_send_connect_session_reply (client_session,
2549 client_session_index,
2550 client_session->vpp_handle,
2551 client_session->client_context,
2553 clib_spinlock_unlock (&vcm->sessions_lockp);
2558 client_session->segment_name = vec_dup ((u8 *) a->segment_name);
2559 client_session->sm_seg_index = a->new_segment_indices[0];
2560 vec_free (a->new_segment_indices);
2562 seg = svm_fifo_segment_get_segment (client_session->sm_seg_index);
2563 client_session->server_rx_fifo =
2564 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
2565 FIFO_SEGMENT_RX_FREELIST);
2566 if (PREDICT_FALSE (!client_session->server_rx_fifo))
2568 svm_fifo_segment_delete (seg);
2569 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2570 "client sid %u rx fifo alloc failed! "
2571 "size %ld (0x%lx)", getpid (), listen_vpp_handle,
2572 listen_session_index, client_session_index,
2573 vcm->cfg.rx_fifo_size, vcm->cfg.rx_fifo_size);
2574 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2575 vppcom_send_connect_session_reply (client_session,
2576 client_session_index,
2577 client_session->vpp_handle,
2578 client_session->client_context,
2580 clib_spinlock_unlock (&vcm->sessions_lockp);
2584 client_session->server_rx_fifo->master_session_index =
2585 client_session_index;
2587 client_session->server_tx_fifo =
2588 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
2589 FIFO_SEGMENT_TX_FREELIST);
2590 if (PREDICT_FALSE (!client_session->server_tx_fifo))
2592 svm_fifo_segment_delete (seg);
2593 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2594 "client sid %u tx fifo alloc failed! "
2595 "size %ld (0x%lx)", getpid (), listen_vpp_handle,
2596 listen_session_index, client_session_index,
2597 vcm->cfg.tx_fifo_size, vcm->cfg.tx_fifo_size);
2598 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2599 vppcom_send_connect_session_reply (client_session,
2600 client_session_index,
2601 client_session->vpp_handle,
2602 client_session->client_context,
2604 clib_spinlock_unlock (&vcm->sessions_lockp);
2608 client_session->server_tx_fifo->master_session_index =
2609 client_session_index;
2611 if (VPPCOM_DEBUG > 1)
2612 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client sid %u "
2613 "created segment '%s', rx_fifo %p, tx_fifo %p",
2614 getpid (), listen_vpp_handle, listen_session_index,
2615 client_session_index, client_session->segment_name,
2616 client_session->server_rx_fifo,
2617 client_session->server_tx_fifo);
2619 #ifdef CUT_THRU_EVENT_QUEUE /* TBD */
2622 ssvm_shared_header_t *sh = seg->ssvm.sh;
2624 ssvm_lock_non_recursive (sh, 1);
2625 oldheap = ssvm_push_heap (sh);
2626 event_q = client_session->vpp_event_queue =
2627 svm_queue_init (vcm->cfg.event_queue_size,
2628 sizeof (session_fifo_event_t),
2629 getpid (), 0 /* signal not sent */ );
2630 ssvm_pop_heap (oldheap);
2631 ssvm_unlock_non_recursive (sh);
2634 vppcom_send_connect_session_reply (client_session,
2635 client_session_index,
2636 client_session->vpp_handle,
2637 client_session->client_context,
2638 0 /* retval OK */ );
2643 vppcom_send_accept_session_reply (client_session->vpp_handle,
2644 client_session->client_context,
2645 0 /* retval OK */ );
2648 if (VPPCOM_DEBUG > 0)
2649 clib_warning ("[%d] vpp handle 0x%llx, sid %u: accepted vpp handle "
2650 "0x%llx, sid %u%sconnection to local %s address "
2651 "%U port %u", getpid (), listen_vpp_handle,
2652 listen_session_index, client_session->vpp_handle,
2653 client_session_index, cut_thru_str,
2654 client_session->lcl_addr.is_ip4 ? "IPv4" : "IPv6",
2655 format_ip46_address, &client_session->lcl_addr.ip46,
2656 client_session->lcl_addr.is_ip4,
2657 clib_net_to_host_u16 (client_session->lcl_port));
2659 clib_spinlock_unlock (&vcm->sessions_lockp);
2660 rv = (int) client_session_index;
2666 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
2668 session_t *session = 0;
2669 int rv, retval = VPPCOM_OK;
2670 u64 vpp_handle = ~0;
2672 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2674 if (PREDICT_FALSE (session->is_vep))
2676 clib_spinlock_unlock (&vcm->sessions_lockp);
2677 clib_warning ("[%d] ERROR: sid %u: cannot connect on an epoll session!",
2678 getpid (), session_index);
2683 vpp_handle = session->vpp_handle;
2684 if (PREDICT_FALSE (session->is_server))
2686 clib_spinlock_unlock (&vcm->sessions_lockp);
2687 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: is in use "
2688 "as a server session!", getpid (), vpp_handle,
2694 if (PREDICT_FALSE (session->state & CLIENT_STATE_OPEN))
2696 if (VPPCOM_DEBUG > 0)
2697 clib_warning ("[%d] vpp handle 0x%llx, sid %u: session already "
2698 "connected to %s %U port %d proto %s, state 0x%x (%s)",
2699 getpid (), vpp_handle, session_index,
2700 session->peer_addr.is_ip4 ? "IPv4" : "IPv6",
2701 format_ip46_address,
2702 &session->peer_addr.ip46, session->peer_addr.is_ip4,
2703 clib_net_to_host_u16 (session->peer_port),
2704 session->proto ? "UDP" : "TCP", session->state,
2705 vppcom_session_state_str (session->state));
2707 clib_spinlock_unlock (&vcm->sessions_lockp);
2711 session->vrf = server_ep->vrf;
2712 session->peer_addr.is_ip4 = server_ep->is_ip4;
2713 session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
2714 session->peer_port = server_ep->port;
2716 if (VPPCOM_DEBUG > 0)
2717 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connecting to server "
2718 "%s %U port %d proto %s",
2719 getpid (), vpp_handle, session_index,
2720 session->peer_addr.is_ip4 ? "IPv4" : "IPv6",
2721 format_ip46_address,
2722 &session->peer_addr.ip46, session->peer_addr.is_ip4,
2723 clib_net_to_host_u16 (session->peer_port),
2724 session->proto ? "UDP" : "TCP");
2726 vppcom_send_connect_sock (session, session_index);
2727 clib_spinlock_unlock (&vcm->sessions_lockp);
2730 vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
2731 vcm->cfg.session_timeout);
2733 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2734 vpp_handle = session->vpp_handle;
2735 clib_spinlock_unlock (&vcm->sessions_lockp);
2738 if (PREDICT_FALSE (retval))
2741 if (VPPCOM_DEBUG > 0)
2742 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connect failed! "
2743 "returning %d (%s)", getpid (), vpp_handle,
2744 session_index, rv, vppcom_retval_str (rv));
2746 else if (VPPCOM_DEBUG > 0)
2747 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connected!",
2748 getpid (), vpp_handle, session_index);
2754 vppcom_session_read_internal (uint32_t session_index, void *buf, int n,
2757 session_t *session = 0;
2758 svm_fifo_t *rx_fifo;
2763 session_state_t state;
2770 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2772 if (PREDICT_FALSE (session->is_vep))
2774 clib_spinlock_unlock (&vcm->sessions_lockp);
2775 clib_warning ("[%d] ERROR: sid %u: cannot read from an epoll session!",
2776 getpid (), session_index);
2781 vpp_handle = session->vpp_handle;
2782 is_server = session->is_server;
2783 is_nonblocking = session->is_nonblocking;
2784 state = session->state;
2785 if (PREDICT_FALSE (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))))
2787 clib_spinlock_unlock (&vcm->sessions_lockp);
2788 rv = ((state == STATE_DISCONNECT) ?
2789 VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
2791 if (VPPCOM_DEBUG > 0)
2792 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s session is "
2793 "not open! state 0x%x (%s), returning %d (%s)",
2794 getpid (), vpp_handle, session_index,
2795 is_server ? "server" : "client", state,
2796 vppcom_session_state_str (state),
2797 rv, vppcom_retval_str (rv));
2801 rx_fifo = ((!session->is_cut_thru || is_server) ?
2802 session->server_rx_fifo : session->server_tx_fifo);
2803 fifo_str = ((!session->is_cut_thru || is_server) ?
2804 "server_rx_fifo" : "server_tx_fifo");
2805 clib_spinlock_unlock (&vcm->sessions_lockp);
2810 n_read = svm_fifo_peek (rx_fifo, 0, n, buf);
2812 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2814 while (!is_nonblocking && (n_read <= 0));
2818 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2820 poll_et = (((EPOLLET | EPOLLIN) & session->vep.ev.events) ==
2821 (EPOLLET | EPOLLIN));
2823 session->vep.et_mask |= EPOLLIN;
2825 if (state == STATE_CLOSE_ON_EMPTY)
2827 session_state_t new_state = STATE_DISCONNECT;
2828 rv = VPPCOM_ECONNRESET;
2830 if (VPPCOM_DEBUG > 1)
2832 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Empty fifo "
2833 "with %s session state 0x%x (%s)!"
2834 " Setting state to 0x%x (%s), returning %d (%s)",
2835 getpid (), vpp_handle, session_index,
2836 is_server ? "server" : "client",
2837 state, vppcom_session_state_str (state),
2838 new_state, vppcom_session_state_str (new_state),
2839 rv, vppcom_retval_str (rv));
2842 session->state = new_state;
2847 clib_spinlock_unlock (&vcm->sessions_lockp);
2852 if (VPPCOM_DEBUG > 2)
2855 clib_warning ("[%d] vpp handle 0x%llx, sid %u: read %d bytes "
2856 "from %s (%p)", getpid (), vpp_handle,
2857 session_index, n_read, fifo_str, rx_fifo);
2859 clib_warning ("[%d] vpp handle 0x%llx, sid %u: nothing read! "
2860 "returning %d (%s)", getpid (), vpp_handle,
2861 session_index, rv, vppcom_retval_str (rv));
2868 vppcom_session_read (uint32_t session_index, void *buf, int n)
2870 return (vppcom_session_read_internal (session_index, buf, n, 0));
2874 vppcom_session_peek (uint32_t session_index, void *buf, int n)
2876 return (vppcom_session_read_internal (session_index, buf, n, 1));
2880 vppcom_session_read_ready (session_t * session, u32 session_index)
2882 svm_fifo_t *rx_fifo = 0;
2886 u8 is_server = session->is_server;
2887 session_state_t state = session->state;
2888 u64 vpp_handle = session->vpp_handle;
2890 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2891 if (PREDICT_FALSE (session->is_vep))
2893 clib_warning ("[%d] ERROR: sid %u: cannot read from an "
2894 "epoll session!", getpid (), session_index);
2899 if (session->is_listen)
2900 ready = clib_fifo_elts (vcm->client_session_index_fifo);
2903 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN | STATE_LISTEN)))
2905 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
2908 if (VPPCOM_DEBUG > 1)
2909 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s session is "
2910 "not open! state 0x%x (%s), returning %d (%s)",
2911 getpid (), vpp_handle, session_index,
2912 is_server ? "server" : "client",
2913 state, vppcom_session_state_str (state),
2914 rv, vppcom_retval_str (rv));
2918 rx_fifo = ((!session->is_cut_thru || is_server) ?
2919 session->server_rx_fifo : session->server_tx_fifo);
2921 ready = svm_fifo_max_dequeue (rx_fifo);
2927 ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN);
2929 session->vep.et_mask |= EPOLLIN;
2931 if (state == STATE_CLOSE_ON_EMPTY)
2933 rv = VPPCOM_ECONNRESET;
2934 session_state_t new_state = STATE_DISCONNECT;
2936 if (VPPCOM_DEBUG > 1)
2938 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Empty fifo with"
2939 " %s session state 0x%x (%s)! Setting state to "
2940 "0x%x (%s), returning %d (%s)",
2941 getpid (), session_index, vpp_handle,
2942 is_server ? "server" : "client",
2943 state, vppcom_session_state_str (state),
2944 new_state, vppcom_session_state_str (new_state),
2945 rv, vppcom_retval_str (rv));
2947 session->state = new_state;
2953 if (vcm->app_event_queue->cursize &&
2954 !pthread_mutex_trylock (&vcm->app_event_queue->mutex))
2956 u32 i, n_to_dequeue = vcm->app_event_queue->cursize;
2957 session_fifo_event_t e;
2959 for (i = 0; i < n_to_dequeue; i++)
2960 svm_queue_sub_raw (vcm->app_event_queue, (u8 *) & e);
2962 pthread_mutex_unlock (&vcm->app_event_queue->mutex);
2970 vppcom_session_write (uint32_t session_index, void *buf, int n)
2972 session_t *session = 0;
2973 svm_fifo_t *tx_fifo;
2975 session_fifo_event_t evt;
2981 session_state_t state;
2986 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2988 if (PREDICT_FALSE (session->is_vep))
2990 clib_spinlock_unlock (&vcm->sessions_lockp);
2991 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2992 "cannot write to an epoll session!",
2993 getpid (), session->vpp_handle, session_index);
2999 is_server = session->is_server;
3000 is_nonblocking = session->is_nonblocking;
3001 vpp_handle = session->vpp_handle;
3002 state = session->state;
3003 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
3005 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
3008 clib_spinlock_unlock (&vcm->sessions_lockp);
3009 if (VPPCOM_DEBUG > 1)
3010 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3011 "%s session is not open! state 0x%x (%s)",
3012 getpid (), vpp_handle, session_index,
3013 is_server ? "server" : "client", state,
3014 vppcom_session_state_str (state));
3018 tx_fifo = ((!session->is_cut_thru || is_server) ?
3019 session->server_tx_fifo : session->server_rx_fifo);
3020 fifo_str = ((!session->is_cut_thru || is_server) ?
3021 "server_tx_fifo" : "server_rx_fifo");
3022 clib_spinlock_unlock (&vcm->sessions_lockp);
3026 n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
3028 while (!is_nonblocking && (n_write <= 0));
3030 /* If event wasn't set, add one */
3031 if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo))
3033 /* Fabricate TX event, send to vpp */
3035 evt.event_type = FIFO_EVENT_APP_TX;
3037 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3038 q = session->vpp_event_queue;
3040 svm_queue_add (q, (u8 *) & evt, 0 /* do wait for mutex */ );
3041 clib_spinlock_unlock (&vcm->sessions_lockp);
3042 if (VPPCOM_DEBUG > 1)
3043 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3044 "added FIFO_EVENT_APP_TX to "
3045 "vpp_event_q %p, n_write %d", getpid (),
3046 vpp_handle, session_index, q, n_write);
3051 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3053 poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
3054 (EPOLLET | EPOLLOUT));
3056 session->vep.et_mask |= EPOLLOUT;
3058 if (state == STATE_CLOSE_ON_EMPTY)
3060 session_state_t new_state = STATE_DISCONNECT;
3061 rv = VPPCOM_ECONNRESET;
3063 if (VPPCOM_DEBUG > 1)
3065 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3066 "Empty fifo with %s session state 0x%x (%s)!"
3067 " Setting state to 0x%x (%s), returning %d (%s)",
3068 getpid (), vpp_handle, session_index,
3069 is_server ? "server" : "client",
3070 state, vppcom_session_state_str (state),
3071 new_state, vppcom_session_state_str (new_state),
3072 rv, vppcom_retval_str (rv));
3075 session->state = new_state;
3080 clib_spinlock_unlock (&vcm->sessions_lockp);
3085 if (VPPCOM_DEBUG > 2)
3088 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3089 "FIFO-FULL %s (%p)", getpid (), vpp_handle,
3090 session_index, fifo_str, tx_fifo);
3092 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3093 "wrote %d bytes to %s (%p)", getpid (), vpp_handle,
3094 session_index, n_write, fifo_str, tx_fifo);
3101 vppcom_session_write_ready (session_t * session, u32 session_index)
3103 svm_fifo_t *tx_fifo;
3108 u8 is_server = session->is_server;
3109 session_state_t state = session->state;
3111 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
3112 if (PREDICT_FALSE (session->is_vep))
3114 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3115 "cannot write to an epoll session!",
3116 getpid (), session->vpp_handle, session_index);
3121 if (PREDICT_FALSE (session->is_listen))
3123 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3124 "cannot write to a listen session!",
3125 getpid (), session->vpp_handle, session_index);
3130 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
3132 session_state_t state = session->state;
3134 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
3137 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3138 "%s session is not open! state 0x%x (%s), "
3139 "returning %d (%s)", getpid (), session->vpp_handle,
3140 session_index, is_server ? "server" : "client",
3141 state, vppcom_session_state_str (state),
3142 rv, vppcom_retval_str (rv));
3146 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
3147 session->server_tx_fifo : session->server_rx_fifo);
3148 fifo_str = ((!session->is_cut_thru || session->is_server) ?
3149 "server_tx_fifo" : "server_rx_fifo");
3151 ready = svm_fifo_max_enqueue (tx_fifo);
3153 if (VPPCOM_DEBUG > 3)
3154 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3155 "peek %s (%p), ready = %d", getpid (),
3156 session->vpp_handle, session_index,
3157 fifo_str, tx_fifo, ready);
3161 poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
3162 (EPOLLET | EPOLLOUT));
3164 session->vep.et_mask |= EPOLLOUT;
3166 if (state == STATE_CLOSE_ON_EMPTY)
3168 rv = VPPCOM_ECONNRESET;
3169 session_state_t new_state = STATE_DISCONNECT;
3171 if (VPPCOM_DEBUG > 1)
3173 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3174 "Empty fifo with %s session "
3175 "state 0x%x (%s)! Setting state to 0x%x (%s), "
3176 "returning %d (%s)", getpid (),
3177 session->vpp_handle, session_index,
3178 is_server ? "server" : "client",
3179 state, vppcom_session_state_str (state),
3180 new_state, vppcom_session_state_str (new_state),
3181 rv, vppcom_retval_str (rv));
3183 session->state = new_state;
3193 vppcom_select (unsigned long n_bits, unsigned long *read_map,
3194 unsigned long *write_map, unsigned long *except_map,
3195 double time_to_wait)
3198 session_t *session = 0;
3199 int rv, bits_set = 0;
3200 f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
3201 u32 minbits = clib_max (n_bits, BITS (uword));
3203 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
3205 if (n_bits && read_map)
3207 clib_bitmap_validate (vcm->rd_bitmap, minbits);
3208 clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
3209 memset (read_map, 0, vec_len (vcm->rd_bitmap));
3211 if (n_bits && write_map)
3213 clib_bitmap_validate (vcm->wr_bitmap, minbits);
3214 clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
3215 memset (write_map, 0, vec_len (vcm->wr_bitmap));
3217 if (n_bits && except_map)
3219 clib_bitmap_validate (vcm->ex_bitmap, minbits);
3220 clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
3221 memset (except_map, 0, vec_len (vcm->ex_bitmap));
3231 clib_bitmap_foreach (session_index, vcm->rd_bitmap,
3233 clib_spinlock_lock (&vcm->sessions_lockp);
3234 rv = vppcom_session_at_index (session_index, &session);
3237 clib_spinlock_unlock (&vcm->sessions_lockp);
3238 if (VPPCOM_DEBUG > 1)
3239 clib_warning ("[%d] session %d specified in "
3240 "read_map is closed.", getpid (),
3242 bits_set = VPPCOM_EBADFD;
3246 rv = vppcom_session_read_ready (session, session_index);
3247 clib_spinlock_unlock (&vcm->sessions_lockp);
3248 if (except_map && vcm->ex_bitmap &&
3249 clib_bitmap_get (vcm->ex_bitmap, session_index) &&
3252 // TBD: clib_warning
3253 clib_bitmap_set_no_check (except_map, session_index, 1);
3258 // TBD: clib_warning
3259 clib_bitmap_set_no_check (read_map, session_index, 1);
3267 clib_bitmap_foreach (session_index, vcm->wr_bitmap,
3269 clib_spinlock_lock (&vcm->sessions_lockp);
3270 rv = vppcom_session_at_index (session_index, &session);
3273 clib_spinlock_unlock (&vcm->sessions_lockp);
3274 if (VPPCOM_DEBUG > 0)
3275 clib_warning ("[%d] session %d specified in "
3276 "write_map is closed.", getpid (),
3278 bits_set = VPPCOM_EBADFD;
3282 rv = vppcom_session_write_ready (session, session_index);
3283 clib_spinlock_unlock (&vcm->sessions_lockp);
3284 if (write_map && (rv > 0))
3286 // TBD: clib_warning
3287 clib_bitmap_set_no_check (write_map, session_index, 1);
3295 clib_bitmap_foreach (session_index, vcm->ex_bitmap,
3297 clib_spinlock_lock (&vcm->sessions_lockp);
3298 rv = vppcom_session_at_index (session_index, &session);
3301 clib_spinlock_unlock (&vcm->sessions_lockp);
3302 if (VPPCOM_DEBUG > 1)
3303 clib_warning ("[%d] session %d specified in "
3304 "except_map is closed.", getpid (),
3306 bits_set = VPPCOM_EBADFD;
3310 rv = vppcom_session_read_ready (session, session_index);
3311 clib_spinlock_unlock (&vcm->sessions_lockp);
3314 // TBD: clib_warning
3315 clib_bitmap_set_no_check (except_map, session_index, 1);
3323 while (clib_time_now (&vcm->clib_time) < timeout);
3330 vep_verify_epoll_chain (u32 vep_idx)
3333 vppcom_epoll_t *vep;
3337 if (VPPCOM_DEBUG <= 1)
3340 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
3341 rv = vppcom_session_at_index (vep_idx, &session);
3342 if (PREDICT_FALSE (rv))
3344 clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", getpid (), vep_idx);
3347 if (PREDICT_FALSE (!session->is_vep))
3349 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", getpid (),
3353 vep = &session->vep;
3354 clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n"
3357 " is_vep_session = %u\n"
3358 " next_sid = 0x%x (%u)\n"
3359 " wait_cont_idx = 0x%x (%u)\n"
3360 "}\n", getpid (), vep_idx,
3361 session->is_vep, session->is_vep_session,
3362 vep->next_sid, vep->next_sid,
3363 session->wait_cont_idx, session->wait_cont_idx);
3365 for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid)
3367 rv = vppcom_session_at_index (sid, &session);
3368 if (PREDICT_FALSE (rv))
3370 clib_warning ("[%d] ERROR: Invalid sid (%u)!", getpid (), sid);
3373 if (PREDICT_FALSE (session->is_vep))
3374 clib_warning ("[%d] ERROR: sid (%u) is a vep!", getpid (), vep_idx);
3375 else if (PREDICT_FALSE (!session->is_vep_session))
3377 clib_warning ("[%d] ERROR: session (%u) is not a vep session!",
3381 vep = &session->vep;
3382 if (PREDICT_FALSE (vep->vep_idx != vep_idx))
3383 clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != "
3384 "vep_idx (%u)!", getpid (),
3385 sid, session->vep.vep_idx, vep_idx);
3386 if (session->is_vep_session)
3388 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
3390 " next_sid = 0x%x (%u)\n"
3391 " prev_sid = 0x%x (%u)\n"
3392 " vep_idx = 0x%x (%u)\n"
3393 " ev.events = 0x%x\n"
3394 " ev.data.u64 = 0x%llx\n"
3398 vep->next_sid, vep->next_sid,
3399 vep->prev_sid, vep->prev_sid,
3400 vep->vep_idx, vep->vep_idx,
3401 vep->ev.events, vep->ev.data.u64, vep->et_mask);
3406 clib_warning ("[%d] vep_idx (%u): Dump complete!\n", getpid (), vep_idx);
3410 vppcom_epoll_create (void)
3412 session_t *vep_session;
3415 clib_spinlock_lock (&vcm->sessions_lockp);
3416 pool_get (vcm->sessions, vep_session);
3417 memset (vep_session, 0, sizeof (*vep_session));
3418 vep_idx = vep_session - vcm->sessions;
3420 vep_session->is_vep = 1;
3421 vep_session->vep.vep_idx = ~0;
3422 vep_session->vep.next_sid = ~0;
3423 vep_session->vep.prev_sid = ~0;
3424 vep_session->wait_cont_idx = ~0;
3425 vep_session->vpp_handle = ~0;
3426 clib_spinlock_unlock (&vcm->sessions_lockp);
3428 if (VPPCOM_DEBUG > 0)
3429 clib_warning ("[%d] Created vep_idx %u / sid %u!",
3430 getpid (), vep_idx, vep_idx);
3436 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
3437 struct epoll_event *event)
3439 session_t *vep_session;
3443 if (vep_idx == session_index)
3445 clib_warning ("[%d] ERROR: vep_idx == session_index (%u)!",
3446 getpid (), vep_idx);
3447 return VPPCOM_EINVAL;
3450 clib_spinlock_lock (&vcm->sessions_lockp);
3451 rv = vppcom_session_at_index (vep_idx, &vep_session);
3452 if (PREDICT_FALSE (rv))
3454 clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", vep_idx);
3457 if (PREDICT_FALSE (!vep_session->is_vep))
3459 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!",
3460 getpid (), vep_idx);
3465 ASSERT (vep_session->vep.vep_idx == ~0);
3466 ASSERT (vep_session->vep.prev_sid == ~0);
3468 rv = vppcom_session_at_index (session_index, &session);
3469 if (PREDICT_FALSE (rv))
3471 if (VPPCOM_DEBUG > 0)
3472 clib_warning ("[%d] ERROR: Invalid session_index (%u)!",
3473 getpid (), session_index);
3476 if (PREDICT_FALSE (session->is_vep))
3478 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
3486 if (PREDICT_FALSE (!event))
3488 clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: NULL pointer to "
3489 "epoll_event structure!", getpid ());
3493 if (vep_session->vep.next_sid != ~0)
3495 session_t *next_session;
3496 rv = vppcom_session_at_index (vep_session->vep.next_sid,
3498 if (PREDICT_FALSE (rv))
3500 clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: Invalid "
3501 "vep.next_sid (%u) on vep_idx (%u)!",
3502 getpid (), vep_session->vep.next_sid, vep_idx);
3505 ASSERT (next_session->vep.prev_sid == vep_idx);
3506 next_session->vep.prev_sid = session_index;
3508 session->vep.next_sid = vep_session->vep.next_sid;
3509 session->vep.prev_sid = vep_idx;
3510 session->vep.vep_idx = vep_idx;
3511 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
3512 session->vep.ev = *event;
3513 session->is_vep = 0;
3514 session->is_vep_session = 1;
3515 vep_session->vep.next_sid = session_index;
3516 if (VPPCOM_DEBUG > 1)
3517 clib_warning ("[%d] EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x,"
3518 " data 0x%llx!", getpid (), vep_idx, session_index,
3519 event->events, event->data.u64);
3523 if (PREDICT_FALSE (!event))
3525 clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: NULL pointer to "
3526 "epoll_event structure!", getpid ());
3530 else if (PREDICT_FALSE (!session->is_vep_session))
3532 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: "
3533 "not a vep session!", getpid (), session_index);
3537 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
3539 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: "
3540 "vep_idx (%u) != vep_idx (%u)!",
3541 getpid (), session_index,
3542 session->vep.vep_idx, vep_idx);
3546 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
3547 session->vep.ev = *event;
3548 if (VPPCOM_DEBUG > 1)
3549 clib_warning ("[%d] EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
3550 " data 0x%llx!", getpid (), vep_idx, session_index,
3551 event->events, event->data.u64);
3555 if (PREDICT_FALSE (!session->is_vep_session))
3557 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: "
3558 "not a vep session!", getpid (), session_index);
3562 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
3564 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: "
3565 "vep_idx (%u) != vep_idx (%u)!",
3566 getpid (), session_index,
3567 session->vep.vep_idx, vep_idx);
3572 vep_session->wait_cont_idx =
3573 (vep_session->wait_cont_idx == session_index) ?
3574 session->vep.next_sid : vep_session->wait_cont_idx;
3576 if (session->vep.prev_sid == vep_idx)
3577 vep_session->vep.next_sid = session->vep.next_sid;
3580 session_t *prev_session;
3581 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
3582 if (PREDICT_FALSE (rv))
3584 clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid "
3585 "vep.prev_sid (%u) on sid (%u)!",
3586 getpid (), session->vep.prev_sid, session_index);
3589 ASSERT (prev_session->vep.next_sid == session_index);
3590 prev_session->vep.next_sid = session->vep.next_sid;
3592 if (session->vep.next_sid != ~0)
3594 session_t *next_session;
3595 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
3596 if (PREDICT_FALSE (rv))
3598 clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid "
3599 "vep.next_sid (%u) on sid (%u)!",
3600 getpid (), session->vep.next_sid, session_index);
3603 ASSERT (next_session->vep.prev_sid == session_index);
3604 next_session->vep.prev_sid = session->vep.prev_sid;
3607 memset (&session->vep, 0, sizeof (session->vep));
3608 session->vep.next_sid = ~0;
3609 session->vep.prev_sid = ~0;
3610 session->vep.vep_idx = ~0;
3611 session->is_vep_session = 0;
3612 if (VPPCOM_DEBUG > 1)
3613 clib_warning ("[%d] EPOLL_CTL_DEL: vep_idx %u, sid %u!",
3614 getpid (), vep_idx, session_index);
3618 clib_warning ("[%d] ERROR: Invalid operation (%d)!", getpid (), op);
3622 vep_verify_epoll_chain (vep_idx);
3625 clib_spinlock_unlock (&vcm->sessions_lockp);
3630 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
3631 int maxevents, double wait_for_time)
3633 session_t *vep_session;
3635 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
3636 u32 keep_trying = 1;
3638 u32 vep_next_sid, wait_cont_idx;
3641 if (PREDICT_FALSE (maxevents <= 0))
3643 clib_warning ("[%d] ERROR: Invalid maxevents (%d)!",
3644 getpid (), maxevents);
3645 return VPPCOM_EINVAL;
3647 memset (events, 0, sizeof (*events) * maxevents);
3649 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3650 vep_next_sid = vep_session->vep.next_sid;
3651 is_vep = vep_session->is_vep;
3652 wait_cont_idx = vep_session->wait_cont_idx;
3653 clib_spinlock_unlock (&vcm->sessions_lockp);
3655 if (PREDICT_FALSE (!is_vep))
3657 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!",
3658 getpid (), vep_idx);
3662 if (PREDICT_FALSE (vep_next_sid == ~0))
3664 if (VPPCOM_DEBUG > 0)
3665 clib_warning ("[%d] WARNING: vep_idx (%u) is empty!",
3666 getpid (), vep_idx);
3676 for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
3677 sid != ~0; sid = next_sid)
3679 u32 session_events, et_mask, clear_et_mask, session_vep_idx;
3680 u8 add_event, is_vep_session;
3682 u64 session_ev_data;
3684 VCL_LOCK_AND_GET_SESSION (sid, &session);
3685 next_sid = session->vep.next_sid;
3686 session_events = session->vep.ev.events;
3687 et_mask = session->vep.et_mask;
3688 is_vep = session->is_vep;
3689 is_vep_session = session->is_vep_session;
3690 session_vep_idx = session->vep.vep_idx;
3691 session_ev_data = session->vep.ev.data.u64;
3692 clib_spinlock_unlock (&vcm->sessions_lockp);
3694 if (PREDICT_FALSE (is_vep))
3696 if (VPPCOM_DEBUG > 0)
3697 clib_warning ("[%d] ERROR: sid (%u) is a vep!",
3698 getpid (), vep_idx);
3702 if (PREDICT_FALSE (!is_vep_session))
3704 if (VPPCOM_DEBUG > 0)
3705 clib_warning ("[%d] ERROR: session (%u) is not "
3706 "a vep session!", getpid (), sid);
3710 if (PREDICT_FALSE (session_vep_idx != vep_idx))
3712 clib_warning ("[%d] ERROR: session (%u) "
3713 "vep_idx (%u) != vep_idx (%u)!",
3714 getpid (), sid, session->vep.vep_idx, vep_idx);
3719 add_event = clear_et_mask = 0;
3721 if (EPOLLIN & session_events)
3723 VCL_LOCK_AND_GET_SESSION (sid, &session);
3724 ready = vppcom_session_read_ready (session, sid);
3725 clib_spinlock_unlock (&vcm->sessions_lockp);
3726 if ((ready > 0) && (EPOLLIN & et_mask))
3729 events[num_ev].events |= EPOLLIN;
3730 if (((EPOLLET | EPOLLIN) & session_events) ==
3731 (EPOLLET | EPOLLIN))
3732 clear_et_mask |= EPOLLIN;
3739 case VPPCOM_ECONNRESET:
3740 events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
3744 events[num_ev].events |= EPOLLERR;
3750 if (EPOLLOUT & session_events)
3752 VCL_LOCK_AND_GET_SESSION (sid, &session);
3753 ready = vppcom_session_write_ready (session, sid);
3754 clib_spinlock_unlock (&vcm->sessions_lockp);
3755 if ((ready > 0) && (EPOLLOUT & et_mask))
3758 events[num_ev].events |= EPOLLOUT;
3759 if (((EPOLLET | EPOLLOUT) & session_events) ==
3760 (EPOLLET | EPOLLOUT))
3761 clear_et_mask |= EPOLLOUT;
3768 case VPPCOM_ECONNRESET:
3769 events[num_ev].events |= EPOLLHUP;
3773 events[num_ev].events |= EPOLLERR;
3781 events[num_ev].data.u64 = session_ev_data;
3782 if (EPOLLONESHOT & session_events)
3784 VCL_LOCK_AND_GET_SESSION (sid, &session);
3785 session->vep.ev.events = 0;
3786 clib_spinlock_unlock (&vcm->sessions_lockp);
3789 if (num_ev == maxevents)
3791 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3792 vep_session->wait_cont_idx = next_sid;
3793 clib_spinlock_unlock (&vcm->sessions_lockp);
3797 if (wait_cont_idx != ~0)
3800 next_sid = vep_next_sid;
3801 else if (next_sid == wait_cont_idx)
3805 if (wait_for_time != -1)
3806 keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
3808 while ((num_ev == 0) && keep_trying);
3810 if (wait_cont_idx != ~0)
3812 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3813 vep_session->wait_cont_idx = ~0;
3814 clib_spinlock_unlock (&vcm->sessions_lockp);
3817 return (rv != VPPCOM_OK) ? rv : num_ev;
3821 vppcom_session_attr (uint32_t session_index, uint32_t op,
3822 void *buffer, uint32_t * buflen)
3826 u32 *flags = buffer;
3827 vppcom_endpt_t *ep = buffer;
3829 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3832 case VPPCOM_ATTR_GET_NREAD:
3833 rv = vppcom_session_read_ready (session, session_index);
3834 if (VPPCOM_DEBUG > 2)
3835 clib_warning ("[%d] VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
3839 case VPPCOM_ATTR_GET_NWRITE:
3840 rv = vppcom_session_write_ready (session, session_index);
3841 if (VPPCOM_DEBUG > 2)
3842 clib_warning ("[%d] VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
3843 getpid (), session_index, rv);
3846 case VPPCOM_ATTR_GET_FLAGS:
3847 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3849 *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0);
3850 *buflen = sizeof (*flags);
3851 if (VPPCOM_DEBUG > 2)
3852 clib_warning ("[%d] VPPCOM_ATTR_GET_FLAGS: sid %u, "
3853 "flags = 0x%08x, is_nonblocking = %u", getpid (),
3854 session_index, *flags, session->is_nonblocking);
3860 case VPPCOM_ATTR_SET_FLAGS:
3861 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3863 session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0;
3864 if (VPPCOM_DEBUG > 2)
3865 clib_warning ("[%d] VPPCOM_ATTR_SET_FLAGS: sid %u, "
3866 "flags = 0x%08x, is_nonblocking = %u",
3867 getpid (), session_index, *flags,
3868 session->is_nonblocking);
3874 case VPPCOM_ATTR_GET_PEER_ADDR:
3875 if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip)
3877 ep->vrf = session->vrf;
3878 ep->is_ip4 = session->peer_addr.is_ip4;
3879 ep->port = session->peer_port;
3880 if (session->peer_addr.is_ip4)
3881 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3882 sizeof (ip4_address_t));
3884 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3885 sizeof (ip6_address_t));
3886 *buflen = sizeof (*ep);
3887 if (VPPCOM_DEBUG > 1)
3888 clib_warning ("[%d] VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = "
3889 "%u, addr = %U, port %u", getpid (),
3890 session_index, ep->is_ip4, format_ip46_address,
3891 &session->peer_addr.ip46, ep->is_ip4,
3892 clib_net_to_host_u16 (ep->port));
3898 case VPPCOM_ATTR_GET_LCL_ADDR:
3899 if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip)
3901 ep->vrf = session->vrf;
3902 ep->is_ip4 = session->lcl_addr.is_ip4;
3903 ep->port = session->lcl_port;
3904 if (session->lcl_addr.is_ip4)
3905 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4,
3906 sizeof (ip4_address_t));
3908 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6,
3909 sizeof (ip6_address_t));
3910 *buflen = sizeof (*ep);
3911 if (VPPCOM_DEBUG > 1)
3912 clib_warning ("[%d] VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = "
3913 "%u, addr = %U port %d", getpid (),
3914 session_index, ep->is_ip4, format_ip46_address,
3915 &session->lcl_addr.ip46, ep->is_ip4,
3916 clib_net_to_host_u16 (ep->port));
3922 case VPPCOM_ATTR_SET_REUSEADDR:
3925 case VPPCOM_ATTR_SET_BROADCAST:
3928 case VPPCOM_ATTR_SET_V6ONLY:
3931 case VPPCOM_ATTR_SET_KEEPALIVE:
3934 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3937 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3946 clib_spinlock_unlock (&vcm->sessions_lockp);
3951 vppcom_session_recvfrom (uint32_t session_index, void *buffer,
3952 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3955 session_t *session = 0;
3959 clib_spinlock_lock (&vcm->sessions_lockp);
3960 rv = vppcom_session_at_index (session_index, &session);
3961 if (PREDICT_FALSE (rv))
3963 clib_spinlock_unlock (&vcm->sessions_lockp);
3964 if (VPPCOM_DEBUG > 0)
3965 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
3966 getpid (), session_index);
3968 clib_spinlock_unlock (&vcm->sessions_lockp);
3971 ep->vrf = session->vrf;
3972 ep->is_ip4 = session->peer_addr.is_ip4;
3973 ep->port = session->peer_port;
3974 if (session->peer_addr.is_ip4)
3975 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3976 sizeof (ip4_address_t));
3978 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3979 sizeof (ip6_address_t));
3980 clib_spinlock_unlock (&vcm->sessions_lockp);
3984 rv = vppcom_session_read (session_index, buffer, buflen);
3985 else if (flags & MSG_PEEK)
3986 rv = vppcom_session_peek (session_index, buffer, buflen);
3989 clib_warning ("[%d] Unsupport flags for recvfrom %d", getpid (), flags);
3990 rv = VPPCOM_EAFNOSUPPORT;
3998 vppcom_session_sendto (uint32_t session_index, void *buffer,
3999 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4002 return VPPCOM_EINVAL;
4007 return VPPCOM_EINVAL;
4012 // TBD check the flags and do the right thing
4013 if (VPPCOM_DEBUG > 2)
4014 clib_warning ("[%d] handling flags 0x%u (%d) not implemented yet.",
4015 getpid (), flags, flags);
4018 return (vppcom_session_write (session_index, buffer, buflen));
4022 * fd.io coding-style-patch-verification: ON
4025 * eval: (c-set-style "gnu")