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 unix_shared_memory_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 unix_shared_memory_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 unix_shared_memory_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,
699 unix_shared_memory_queue_t *);
701 vcm->app_state = STATE_APP_ATTACHED;
705 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
709 clib_warning ("[%d] detach failed: %U", getpid (), format_api_error,
712 vcm->app_state = STATE_APP_ENABLED;
716 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
720 clib_warning ("[%d] vpp handle 0x%llx: disconnect session failed: %U",
721 getpid (), mp->handle, format_api_error,
726 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
728 static svm_fifo_segment_create_args_t _a;
729 svm_fifo_segment_create_args_t *a = &_a;
732 memset (a, 0, sizeof (*a));
733 a->segment_name = (char *) mp->segment_name;
734 a->segment_size = mp->segment_size;
735 /* Attach to the segment vpp created */
736 rv = svm_fifo_segment_attach (a);
737 vec_reset_length (a->new_segment_indices);
738 if (PREDICT_FALSE (rv))
740 clib_warning ("[%d] svm_fifo_segment_attach ('%s') failed",
741 getpid (), mp->segment_name);
744 if (VPPCOM_DEBUG > 1)
745 clib_warning ("[%d] mapped new segment '%s' size %d", getpid (),
746 mp->segment_name, mp->segment_size);
750 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
754 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
758 session_t *session = 0;
759 u32 session_index = p[0];
761 VCL_LOCK_AND_GET_SESSION (session_index, &session);
762 session->state = STATE_CLOSE_ON_EMPTY;
764 if (VPPCOM_DEBUG > 1)
765 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
766 "setting state to 0x%x (%s)",
767 getpid (), mp->handle, session_index, session->state,
768 vppcom_session_state_str (session->state));
769 clib_spinlock_unlock (&vcm->sessions_lockp);
773 if (VPPCOM_DEBUG > 1)
774 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
775 "session lookup failed!",
776 getpid (), mp->handle, session_index);
779 clib_warning ("[%d] vpp handle 0x%llx: session lookup by "
780 "handle failed!", getpid (), mp->handle);
784 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
786 session_t *session = 0;
787 vl_api_reset_session_reply_t *rmp;
791 p = hash_get (vcm->session_index_by_vpp_handles, mp->handle);
795 clib_spinlock_lock (&vcm->sessions_lockp);
796 rval = vppcom_session_at_index (p[0], &session);
797 if (PREDICT_FALSE (rval))
799 rv = VNET_API_ERROR_INVALID_VALUE_2;
800 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
801 "session lookup failed! returning %d %U",
802 getpid (), mp->handle, p[0],
803 rv, format_api_error, rv);
807 /* TBD: should this disconnect immediately and
810 session->state = STATE_CLOSE_ON_EMPTY;
812 if (VPPCOM_DEBUG > 1)
813 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
814 "state set to %d (%s)!", getpid (),
815 mp->handle, p[0], session->state,
816 vppcom_session_state_str (session->state));
818 clib_spinlock_unlock (&vcm->sessions_lockp);
822 rv = VNET_API_ERROR_INVALID_VALUE;
823 clib_warning ("[%d] ERROR: vpp handle 0x%llx: session lookup "
824 "failed! returning %d %U",
825 getpid (), mp->handle, rv, format_api_error, rv);
828 rmp = vl_msg_api_alloc (sizeof (*rmp));
829 memset (rmp, 0, sizeof (*rmp));
830 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
831 rmp->retval = htonl (rv);
832 rmp->handle = mp->handle;
833 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
837 vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
839 session_t *session = 0;
841 svm_fifo_t *rx_fifo, *tx_fifo;
845 session_index = mp->context;
846 VCL_LOCK_AND_GET_SESSION (session_index, &session);
850 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
851 "connect failed! %U",
852 getpid (), mp->handle, session_index,
853 format_api_error, ntohl (mp->retval));
856 session->state = STATE_FAILED;
857 session->vpp_handle = mp->handle;
861 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
862 "Invalid session index (%u)!",
863 getpid (), mp->handle, session_index);
871 /* We've been redirected */
872 if (mp->segment_name_length > 0)
874 static svm_fifo_segment_create_args_t _a;
875 svm_fifo_segment_create_args_t *a = &_a;
878 memset (a, 0, sizeof (*a));
879 a->segment_name = (char *) mp->segment_name;
880 if (VPPCOM_DEBUG > 1)
881 clib_warning ("[%d] cut-thru segment: %s\n",
882 getpid (), a->segment_name);
884 rv = svm_fifo_segment_attach (a);
885 vec_reset_length (a->new_segment_indices);
886 if (PREDICT_FALSE (rv))
888 clib_warning ("[%d] sm_fifo_segment_attach ('%s') failed",
889 getpid (), a->segment_name);
897 session->is_cut_thru = is_cut_thru;
898 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
899 unix_shared_memory_queue_t *);
901 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
902 rx_fifo->client_session_index = session_index;
903 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
904 tx_fifo->client_session_index = session_index;
906 session->server_rx_fifo = rx_fifo;
907 session->server_tx_fifo = tx_fifo;
908 session->vpp_handle = mp->handle;
909 session->lcl_addr.is_ip4 = mp->is_ip4;
910 clib_memcpy (&session->lcl_addr.ip46, mp->lcl_ip,
911 sizeof (session->peer_addr.ip46));
912 session->lcl_port = mp->lcl_port;
913 session->state = STATE_CONNECT;
915 /* Add it to lookup table */
916 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
918 if (VPPCOM_DEBUG > 1)
919 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connect succeeded!"
920 " session_rx_fifo %p, refcnt %d,"
921 " session_tx_fifo %p, refcnt %d",
922 getpid (), mp->handle, session_index,
923 session->server_rx_fifo,
924 session->server_rx_fifo->refcnt,
925 session->server_tx_fifo, session->server_tx_fifo->refcnt);
927 clib_spinlock_unlock (&vcm->sessions_lockp);
931 vppcom_send_connect_sock (session_t * session, u32 session_index)
933 vl_api_connect_sock_t *cmp;
935 /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */
936 session->is_server = 0;
937 cmp = vl_msg_api_alloc (sizeof (*cmp));
938 memset (cmp, 0, sizeof (*cmp));
939 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK);
940 cmp->client_index = vcm->my_client_index;
941 cmp->context = session_index;
943 cmp->vrf = session->vrf;
944 cmp->is_ip4 = session->peer_addr.is_ip4;
945 clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip));
946 cmp->port = session->peer_port;
947 cmp->proto = session->proto;
948 clib_memcpy (cmp->options, session->options, sizeof (cmp->options));
949 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp);
953 vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index,
956 vl_api_disconnect_session_reply_t *rmp;
958 if (VPPCOM_DEBUG > 1)
959 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg",
960 getpid (), vpp_handle, session_index);
962 rmp = vl_msg_api_alloc (sizeof (*rmp));
963 memset (rmp, 0, sizeof (*rmp));
965 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
966 rmp->retval = htonl (rv);
967 rmp->handle = vpp_handle;
968 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
972 vppcom_send_disconnect_session (u64 vpp_handle, u32 session_index)
974 vl_api_disconnect_session_t *dmp;
976 if (VPPCOM_DEBUG > 1)
977 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg",
978 getpid (), vpp_handle, session_index);
980 dmp = vl_msg_api_alloc (sizeof (*dmp));
981 memset (dmp, 0, sizeof (*dmp));
982 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
983 dmp->client_index = vcm->my_client_index;
984 dmp->handle = vpp_handle;
985 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp);
989 vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp)
991 session_t *session = 0;
992 u32 session_index = mp->context;
995 VCL_LOCK_AND_GET_SESSION (session_index, &session);
999 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
1000 getpid (), mp->handle, session_index, format_api_error,
1001 ntohl (mp->retval));
1002 rv = vppcom_session_at_index (session_index, &session);
1003 if (rv == VPPCOM_OK)
1005 session->state = STATE_FAILED;
1006 session->vpp_handle = mp->handle;
1010 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
1011 "Invalid session index (%u)!",
1012 getpid (), mp->handle, session_index);
1017 session->vpp_handle = mp->handle;
1018 session->lcl_addr.is_ip4 = mp->lcl_is_ip4;
1019 clib_memcpy (&session->lcl_addr.ip46, mp->lcl_ip,
1020 sizeof (session->peer_addr.ip46));
1021 session->lcl_port = mp->lcl_port;
1022 vppcom_session_table_add_listener (mp->handle, session_index);
1023 session->is_listen = 1;
1024 session->state = STATE_LISTEN;
1026 if (VPPCOM_DEBUG > 1)
1027 clib_warning ("[%d] vpp handle 0x%llx, sid %u: bind succeeded!",
1028 getpid (), mp->handle, mp->context);
1030 clib_spinlock_unlock (&vcm->sessions_lockp);
1034 vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp)
1037 clib_warning ("[%d] ERROR: sid %u: unbind failed: %U",
1038 getpid (), mp->context, format_api_error,
1039 ntohl (mp->retval));
1041 else if (VPPCOM_DEBUG > 1)
1042 clib_warning ("[%d] sid %u: unbind succeeded!", getpid (), mp->context);
1046 format_ip4_address (u8 * s, va_list * args)
1048 u8 *a = va_arg (*args, u8 *);
1049 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
1053 format_ip6_address (u8 * s, va_list * args)
1055 ip6_address_t *a = va_arg (*args, ip6_address_t *);
1056 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
1058 i_max_n_zero = ARRAY_LEN (a->as_u16);
1060 i_first_zero = i_max_n_zero;
1062 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1064 u32 is_zero = a->as_u16[i] == 0;
1065 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
1071 if ((!is_zero && n_zeros > max_n_zeros)
1072 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
1074 i_max_n_zero = i_first_zero;
1075 max_n_zeros = n_zeros;
1076 i_first_zero = ARRAY_LEN (a->as_u16);
1081 last_double_colon = 0;
1082 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1084 if (i == i_max_n_zero && max_n_zeros > 1)
1086 s = format (s, "::");
1087 i += max_n_zeros - 1;
1088 last_double_colon = 1;
1092 s = format (s, "%s%x",
1093 (last_double_colon || i == 0) ? "" : ":",
1094 clib_net_to_host_u16 (a->as_u16[i]));
1095 last_double_colon = 0;
1102 /* Format an IP46 address. */
1104 format_ip46_address (u8 * s, va_list * args)
1106 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1107 ip46_type_t type = va_arg (*args, ip46_type_t);
1113 is_ip4 = ip46_address_is_ip4 (ip46);
1124 format (s, "%U", format_ip4_address, &ip46->ip4) :
1125 format (s, "%U", format_ip6_address, &ip46->ip6);
1129 vppcom_send_accept_session_reply (u64 handle, u32 context, int retval)
1131 vl_api_accept_session_reply_t *rmp;
1133 rmp = vl_msg_api_alloc (sizeof (*rmp));
1134 memset (rmp, 0, sizeof (*rmp));
1135 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1136 rmp->retval = htonl (retval);
1137 rmp->context = context;
1138 rmp->handle = handle;
1139 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1143 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
1145 svm_fifo_t *rx_fifo, *tx_fifo;
1146 session_t *session, *listen_session;
1149 clib_spinlock_lock (&vcm->sessions_lockp);
1150 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1152 clib_warning ("[%d] client session queue is full!", getpid ());
1153 vppcom_send_accept_session_reply (mp->handle, mp->context,
1154 VNET_API_ERROR_QUEUE_FULL);
1155 clib_spinlock_unlock (&vcm->sessions_lockp);
1159 listen_session = vppcom_session_table_lookup_listener (mp->listener_handle);
1160 if (!listen_session)
1162 clib_warning ("[%d] ERROR: couldn't find listen session: unknown vpp "
1163 "listener handle %llx", getpid (), mp->listener_handle);
1164 clib_spinlock_unlock (&vcm->sessions_lockp);
1168 /* Allocate local session and set it up */
1169 pool_get (vcm->sessions, session);
1170 memset (session, 0, sizeof (*session));
1171 session_index = session - vcm->sessions;
1173 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
1174 rx_fifo->client_session_index = session_index;
1175 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
1176 tx_fifo->client_session_index = session_index;
1178 session->vpp_handle = mp->handle;
1179 session->client_context = mp->context;
1180 session->server_rx_fifo = rx_fifo;
1181 session->server_tx_fifo = tx_fifo;
1182 session->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
1183 unix_shared_memory_queue_t *);
1184 session->state = STATE_ACCEPT;
1185 session->is_cut_thru = 0;
1186 session->is_server = 1;
1187 session->peer_port = mp->port;
1188 session->peer_addr.is_ip4 = mp->is_ip4;
1189 clib_memcpy (&session->peer_addr.ip46, mp->ip,
1190 sizeof (session->peer_addr.ip46));
1192 /* Add it to lookup table */
1193 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
1194 session->lcl_port = listen_session->lcl_port;
1195 session->lcl_addr = listen_session->lcl_addr;
1197 /* TBD: move client_session_index_fifo into listener session */
1198 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1200 clib_spinlock_unlock (&vcm->sessions_lockp);
1202 if (VPPCOM_DEBUG > 1)
1203 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client accept "
1204 "request from %s address %U port %d queue %p!", getpid (),
1205 mp->handle, session_index, mp->is_ip4 ? "IPv4" : "IPv6",
1206 format_ip46_address, &mp->ip, mp->is_ip4,
1207 clib_net_to_host_u16 (mp->port), session->vpp_event_queue);
1211 vppcom_send_connect_session_reply (session_t * session, u32 session_index,
1212 u64 vpp_handle, u32 context, int retval)
1214 vl_api_connect_session_reply_t *rmp;
1216 unix_shared_memory_queue_t *client_q;
1218 rmp = vl_msg_api_alloc (sizeof (*rmp));
1219 memset (rmp, 0, sizeof (*rmp));
1220 rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
1224 rmp->context = context;
1225 rmp->handle = vpp_handle;
1226 rmp->retval = htonl (retval);
1227 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp);
1231 rmp->context = session->client_context;
1232 rmp->retval = htonl (retval);
1233 rmp->handle = session->vpp_handle;
1234 rmp->server_rx_fifo = pointer_to_uword (session->server_rx_fifo);
1235 rmp->server_tx_fifo = pointer_to_uword (session->server_tx_fifo);
1236 rmp->vpp_event_queue_address = pointer_to_uword (session->vpp_event_queue);
1237 rmp->segment_size = vcm->cfg.segment_size;
1238 len = vec_len (session->segment_name);
1239 rmp->segment_name_length = clib_min (len, sizeof (rmp->segment_name));
1240 clib_memcpy (rmp->segment_name, session->segment_name,
1241 rmp->segment_name_length - 1);
1242 clib_memcpy (rmp->lcl_ip, session->peer_addr.ip46.as_u8,
1243 sizeof (rmp->lcl_ip));
1244 rmp->is_ip4 = session->peer_addr.is_ip4;
1245 rmp->lcl_port = session->peer_port;
1246 client_q = uword_to_pointer (session->client_queue_address,
1247 unix_shared_memory_queue_t *);
1249 vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
1253 * Acting as server for redirected connect requests
1256 vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
1259 session_t *session = 0;
1261 clib_spinlock_lock (&vcm->sessions_lockp);
1262 if (!clib_fifo_free_elts (vcm->client_session_index_fifo))
1264 clib_spinlock_unlock (&vcm->sessions_lockp);
1266 if (VPPCOM_DEBUG > 1)
1267 clib_warning ("[%d] client session queue is full!", getpid ());
1269 /* TBD: Fix api to include vpp handle */
1270 vppcom_send_connect_session_reply (0 /* session */ , 0 /* sid */ ,
1271 0 /* handle */ , mp->context,
1272 VNET_API_ERROR_QUEUE_FULL);
1276 pool_get (vcm->sessions, session);
1277 memset (session, 0, sizeof (*session));
1278 session_index = session - vcm->sessions;
1280 session->client_context = mp->context;
1281 session->vpp_handle = session_index;
1282 session->client_queue_address = mp->client_queue_address;
1283 session->is_cut_thru = 1;
1284 session->is_server = 1;
1285 session->lcl_port = mp->port;
1286 session->lcl_addr.is_ip4 = mp->is_ip4;
1287 clib_memcpy (&session->lcl_addr.ip46, mp->ip,
1288 sizeof (session->lcl_addr.ip46));
1290 /* TBD: missing peer info in api msg.
1292 session->peer_addr.is_ip4 = mp->is_ip4;
1293 ASSERT (session->lcl_addr.is_ip4 == session->peer_addr.is_ip4);
1295 session->state = STATE_ACCEPT;
1296 clib_fifo_add1 (vcm->client_session_index_fifo, session_index);
1297 if (VPPCOM_DEBUG > 1)
1298 clib_warning ("[%d] sid %u: Got a cut-thru connect request! "
1299 "clib_fifo_elts %u!\n", getpid (), session_index,
1300 clib_fifo_elts (vcm->client_session_index_fifo));
1301 clib_spinlock_unlock (&vcm->sessions_lockp);
1305 vppcom_send_bind_sock (session_t * session, u32 session_index)
1307 vl_api_bind_sock_t *bmp;
1309 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1310 session->is_server = 1;
1311 bmp = vl_msg_api_alloc (sizeof (*bmp));
1312 memset (bmp, 0, sizeof (*bmp));
1314 bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK);
1315 bmp->client_index = vcm->my_client_index;
1316 bmp->context = session_index;
1317 bmp->vrf = session->vrf;
1318 bmp->is_ip4 = session->lcl_addr.is_ip4;
1319 clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip));
1320 bmp->port = session->lcl_port;
1321 bmp->proto = session->proto;
1322 clib_memcpy (bmp->options, session->options, sizeof (bmp->options));
1323 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp);
1327 vppcom_send_unbind_sock (u64 vpp_handle)
1329 vl_api_unbind_sock_t *ump;
1331 ump = vl_msg_api_alloc (sizeof (*ump));
1332 memset (ump, 0, sizeof (*ump));
1334 ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK);
1335 ump->client_index = vcm->my_client_index;
1336 ump->handle = vpp_handle;
1337 vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump);
1341 vppcom_session_unbind (u32 session_index)
1343 session_t *session = 0;
1347 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1349 vpp_handle = session->vpp_handle;
1350 vppcom_session_table_del_listener (vpp_handle);
1351 session->vpp_handle = ~0;
1352 session->state = STATE_DISCONNECT;
1354 clib_spinlock_unlock (&vcm->sessions_lockp);
1356 if (VPPCOM_DEBUG > 1)
1357 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1358 "sending unbind msg! new state 0x%x (%s)",
1359 getpid (), vpp_handle, session_index,
1360 session->state, vppcom_session_state_str (session->state));
1362 vppcom_send_unbind_sock (vpp_handle);
1369 vppcom_session_disconnect (u32 session_index)
1373 u8 is_cut_thru, is_listen, is_server;
1375 session_state_t state;
1377 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1379 vpp_handle = session->vpp_handle;
1380 is_server = session->is_server;
1381 is_listen = session->is_listen;
1382 is_cut_thru = session->is_cut_thru;
1383 state = session->state;
1384 clib_spinlock_unlock (&vcm->sessions_lockp);
1386 if (VPPCOM_DEBUG > 1)
1388 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s state 0x%x (%s), "
1389 "is_cut_thru %d, is_listen %d",
1390 getpid (), vpp_handle, session_index,
1391 is_server ? "server" : "client",
1392 state, vppcom_session_state_str (state),
1393 is_cut_thru, is_listen);
1396 if (PREDICT_FALSE (is_listen))
1398 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
1399 "Cannot disconnect a listen socket!",
1400 getpid (), vpp_handle, session_index);
1405 /* Through the VPP host stack...
1407 else if (!is_cut_thru)
1409 /* The peer has already initiated the close,
1410 * so send the disconnect session reply.
1412 if (state & STATE_CLOSE_ON_EMPTY)
1414 vppcom_send_disconnect_session_reply (vpp_handle,
1415 session_index, 0 /* rv */ );
1416 if (VPPCOM_DEBUG > 1)
1417 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1418 "sending disconnect REPLY...",
1419 getpid (), vpp_handle, session_index);
1422 /* Otherwise, send a disconnect session msg...
1426 if (VPPCOM_DEBUG > 1)
1427 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
1428 "sending disconnect...",
1429 getpid (), vpp_handle, session_index);
1431 vppcom_send_disconnect_session (vpp_handle, session_index);
1435 /* Cut-thru connections...
1437 * server: free fifos and segment allocated during connect/redirect
1438 * client: no cleanup required
1444 svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
1445 svm_fifo_segment_private_t *seg;
1447 VCL_LOCK_AND_GET_SESSION (session_index, &session);
1449 if (VPPCOM_DEBUG > 1)
1450 clib_warning ("[%d] sid %d: freeing cut-thru fifos in "
1452 " server_rx_fifo %p, refcnt = %d"
1453 " server_tx_fifo %p, refcnt = %d",
1454 getpid (), session_index, session->sm_seg_index,
1455 session->server_rx_fifo,
1456 session->server_rx_fifo->refcnt,
1457 session->server_tx_fifo,
1458 session->server_tx_fifo->refcnt);
1460 seg = vec_elt_at_index (sm->segments, session->sm_seg_index);
1461 svm_fifo_segment_free_fifo (seg, session->server_rx_fifo,
1462 FIFO_SEGMENT_RX_FREELIST);
1463 svm_fifo_segment_free_fifo (seg, session->server_tx_fifo,
1464 FIFO_SEGMENT_TX_FREELIST);
1465 svm_fifo_segment_delete (seg);
1467 /* TBD: Send cut-thru disconnect event to client */
1469 clib_spinlock_unlock (&vcm->sessions_lockp);
1473 /* TBD: Send cut-thru disconnect event to server */
1481 #define foreach_sock_msg \
1482 _(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \
1483 _(BIND_SOCK_REPLY, bind_sock_reply) \
1484 _(UNBIND_SOCK_REPLY, unbind_sock_reply) \
1485 _(ACCEPT_SESSION, accept_session) \
1486 _(CONNECT_SOCK, connect_sock) \
1487 _(CONNECT_SESSION_REPLY, connect_session_reply) \
1488 _(DISCONNECT_SESSION, disconnect_session) \
1489 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1490 _(RESET_SESSION, reset_session) \
1491 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1492 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1493 _(MAP_ANOTHER_SEGMENT, map_another_segment)
1496 vppcom_api_hookup (void)
1499 vl_msg_api_set_handlers(VL_API_##N, #n, \
1500 vl_api_##n##_t_handler, \
1502 vl_api_##n##_t_endian, \
1503 vl_api_##n##_t_print, \
1504 sizeof(vl_api_##n##_t), 1);
1510 vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
1514 vcl_cfg->heapsize = (256ULL << 20);
1515 vcl_cfg->vpp_api_q_length = 1024;
1516 vcl_cfg->segment_baseva = 0x200000000ULL;
1517 vcl_cfg->segment_size = (256 << 20);
1518 vcl_cfg->add_segment_size = (128 << 20);
1519 vcl_cfg->preallocated_fifo_pairs = 8;
1520 vcl_cfg->rx_fifo_size = (1 << 20);
1521 vcl_cfg->tx_fifo_size = (1 << 20);
1522 vcl_cfg->event_queue_size = 2048;
1523 vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
1524 vcl_cfg->app_timeout = 10 * 60.0;
1525 vcl_cfg->session_timeout = 10 * 60.0;
1526 vcl_cfg->accept_timeout = 60.0;
1527 vcl_cfg->event_ring_size = (128 << 10);
1528 vcl_cfg->event_log_path = "/dev/shm";
1532 vppcom_cfg_heapsize (char *conf_fname)
1534 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1547 fp = fopen (conf_fname, "r");
1550 if (VPPCOM_DEBUG > 0)
1551 fprintf (stderr, "open configuration file '%s' failed\n", conf_fname);
1554 argv = calloc (1, sizeof (char *));
1560 if (fgets (inbuf, 4096, fp) == 0)
1562 p = strtok (inbuf, " \t\n");
1568 char **tmp = realloc (argv, argc * sizeof (char *));
1572 arg = strndup (p, 1024);
1575 argv[argc - 1] = arg;
1576 p = strtok (NULL, " \t\n");
1583 char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
1590 * Look for and parse the "heapsize" config parameter.
1591 * Manual since none of the clib infra has been bootstrapped yet.
1593 * Format: heapsize <nn>[mM][gG]
1596 for (i = 1; i < (argc - 1); i++)
1598 if (!strncmp (argv[i], "heapsize", 8))
1600 sizep = (u8 *) argv[i + 1];
1602 while (*sizep >= '0' && *sizep <= '9')
1605 size += *sizep++ - '0';
1609 if (VPPCOM_DEBUG > 0)
1610 clib_warning ("[%d] parse error '%s %s', "
1611 "using default heapsize %lld (0x%llx)",
1612 getpid (), argv[i], argv[i + 1],
1613 vcl_cfg->heapsize, vcl_cfg->heapsize);
1617 if (*sizep == 'g' || *sizep == 'G')
1618 vcl_cfg->heapsize = size << 30;
1619 else if (*sizep == 'm' || *sizep == 'M')
1620 vcl_cfg->heapsize = size << 20;
1623 if (VPPCOM_DEBUG > 0)
1624 clib_warning ("[%d] parse error '%s %s', "
1625 "using default heapsize %lld (0x%llx)",
1626 getpid (), argv[i], argv[i + 1],
1627 vcl_cfg->heapsize, vcl_cfg->heapsize);
1639 vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE,
1640 MAP_SHARED | MAP_ANONYMOUS, -1, 0);
1641 if (vcl_mem == MAP_FAILED)
1643 clib_unix_error ("[%d] ERROR: mmap(0, %lld == 0x%llx, "
1644 "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, "
1646 getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize);
1649 heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize);
1652 clib_warning ("[%d] ERROR: clib_mem_init() failed!", getpid ());
1655 vcl_mem = clib_mem_alloc (sizeof (_vppcom_main));
1658 clib_warning ("[%d] ERROR: clib_mem_alloc() failed!", getpid ());
1662 clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main));
1665 if (VPPCOM_DEBUG > 0)
1666 clib_warning ("[%d] allocated VCL heap = %p, size %lld (0x%llx)",
1667 getpid (), heap, vcl_cfg->heapsize, vcl_cfg->heapsize);
1671 vppcom_cfg_read (char *conf_fname)
1673 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1675 unformat_input_t _input, *input = &_input;
1676 unformat_input_t _line_input, *line_input = &_line_input;
1677 u8 vc_cfg_input = 0;
1680 u32 uid, gid, q_len;
1682 fd = open (conf_fname, O_RDONLY);
1685 if (VPPCOM_DEBUG > 0)
1686 clib_warning ("[%d] open configuration file '%s' failed!",
1687 getpid (), conf_fname);
1691 if (fstat (fd, &s) < 0)
1693 if (VPPCOM_DEBUG > 0)
1694 clib_warning ("[%d] failed to stat `%s'", getpid (), conf_fname);
1698 if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
1700 if (VPPCOM_DEBUG > 0)
1701 clib_warning ("[%d] not a regular file `%s'", getpid (), conf_fname);
1705 unformat_init_clib_file (input, fd);
1707 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1709 (void) unformat_user (input, unformat_line_input, line_input);
1710 unformat_skip_white_space (line_input);
1712 if (unformat (line_input, "vcl {"))
1720 if (unformat (line_input, "heapsize %s", &chroot_path))
1722 vec_terminate_c_string (chroot_path);
1723 if (VPPCOM_DEBUG > 0)
1724 clib_warning ("[%d] configured heapsize %s, "
1725 "actual heapsize %lld (0x%llx)",
1726 getpid (), chroot_path, vcl_cfg->heapsize,
1728 vec_free (chroot_path);
1730 else if (unformat (line_input, "api-prefix %s", &chroot_path))
1732 vec_terminate_c_string (chroot_path);
1733 vl_set_memory_root_path ((char *) chroot_path);
1734 if (VPPCOM_DEBUG > 0)
1735 clib_warning ("[%d] configured api-prefix %s",
1736 getpid (), chroot_path);
1737 chroot_path = 0; /* Don't vec_free() it! */
1739 else if (unformat (line_input, "vpp-api-q-length %d", &q_len))
1741 if (q_len < vcl_cfg->vpp_api_q_length)
1743 clib_warning ("[%d] ERROR: configured vpp-api-q-length "
1744 "(%u) is too small! Using default: %u ",
1745 getpid (), q_len, vcl_cfg->vpp_api_q_length);
1749 vcl_cfg->vpp_api_q_length = q_len;
1751 if (VPPCOM_DEBUG > 0)
1752 clib_warning ("[%d] configured vpp-api-q-length %u",
1753 getpid (), vcl_cfg->vpp_api_q_length);
1756 else if (unformat (line_input, "uid %d", &uid))
1758 vl_set_memory_uid (uid);
1759 if (VPPCOM_DEBUG > 0)
1760 clib_warning ("[%d] configured uid %d", getpid (), uid);
1762 else if (unformat (line_input, "gid %d", &gid))
1764 vl_set_memory_gid (gid);
1765 if (VPPCOM_DEBUG > 0)
1766 clib_warning ("[%d] configured gid %d", getpid (), gid);
1768 else if (unformat (line_input, "segment-baseva 0x%lx",
1769 &vcl_cfg->segment_baseva))
1771 if (VPPCOM_DEBUG > 0)
1772 clib_warning ("[%d] configured segment_baseva 0x%lx",
1773 getpid (), vcl_cfg->segment_baseva);
1775 else if (unformat (line_input, "segment-size 0x%lx",
1776 &vcl_cfg->segment_size))
1778 if (VPPCOM_DEBUG > 0)
1779 clib_warning ("[%d] configured segment_size 0x%lx (%ld)",
1780 getpid (), vcl_cfg->segment_size,
1781 vcl_cfg->segment_size);
1783 else if (unformat (line_input, "segment-size %ld",
1784 &vcl_cfg->segment_size))
1786 if (VPPCOM_DEBUG > 0)
1787 clib_warning ("[%d] configured segment_size %ld (0x%lx)",
1788 getpid (), vcl_cfg->segment_size,
1789 vcl_cfg->segment_size);
1791 else if (unformat (line_input, "add-segment-size 0x%lx",
1792 &vcl_cfg->add_segment_size))
1794 if (VPPCOM_DEBUG > 0)
1796 ("[%d] configured add_segment_size 0x%lx (%ld)",
1797 getpid (), vcl_cfg->add_segment_size,
1798 vcl_cfg->add_segment_size);
1800 else if (unformat (line_input, "add-segment-size %ld",
1801 &vcl_cfg->add_segment_size))
1803 if (VPPCOM_DEBUG > 0)
1805 ("[%d] configured add_segment_size %ld (0x%lx)",
1806 getpid (), vcl_cfg->add_segment_size,
1807 vcl_cfg->add_segment_size);
1809 else if (unformat (line_input, "preallocated-fifo-pairs %d",
1810 &vcl_cfg->preallocated_fifo_pairs))
1812 if (VPPCOM_DEBUG > 0)
1813 clib_warning ("[%d] configured preallocated_fifo_pairs "
1814 "%d (0x%x)", getpid (),
1815 vcl_cfg->preallocated_fifo_pairs,
1816 vcl_cfg->preallocated_fifo_pairs);
1818 else if (unformat (line_input, "rx-fifo-size 0x%lx",
1819 &vcl_cfg->rx_fifo_size))
1821 if (VPPCOM_DEBUG > 0)
1822 clib_warning ("[%d] configured rx_fifo_size 0x%lx (%ld)",
1823 getpid (), vcl_cfg->rx_fifo_size,
1824 vcl_cfg->rx_fifo_size);
1826 else if (unformat (line_input, "rx-fifo-size %ld",
1827 &vcl_cfg->rx_fifo_size))
1829 if (VPPCOM_DEBUG > 0)
1830 clib_warning ("[%d] configured rx_fifo_size %ld (0x%lx)",
1831 getpid (), vcl_cfg->rx_fifo_size,
1832 vcl_cfg->rx_fifo_size);
1834 else if (unformat (line_input, "tx-fifo-size 0x%lx",
1835 &vcl_cfg->tx_fifo_size))
1837 if (VPPCOM_DEBUG > 0)
1838 clib_warning ("[%d] configured tx_fifo_size 0x%lx (%ld)",
1839 getpid (), vcl_cfg->tx_fifo_size,
1840 vcl_cfg->tx_fifo_size);
1842 else if (unformat (line_input, "tx-fifo-size %ld",
1843 &vcl_cfg->tx_fifo_size))
1845 if (VPPCOM_DEBUG > 0)
1846 clib_warning ("[%d] configured tx_fifo_size %ld (0x%lx)",
1847 getpid (), vcl_cfg->tx_fifo_size,
1848 vcl_cfg->tx_fifo_size);
1850 else if (unformat (line_input, "event-queue-size 0x%lx",
1851 &vcl_cfg->event_queue_size))
1853 if (VPPCOM_DEBUG > 0)
1854 clib_warning ("[%d] configured event_queue_size 0x%lx (%ld)",
1855 getpid (), vcl_cfg->event_queue_size,
1856 vcl_cfg->event_queue_size);
1858 else if (unformat (line_input, "event-queue-size %ld",
1859 &vcl_cfg->event_queue_size))
1861 if (VPPCOM_DEBUG > 0)
1862 clib_warning ("[%d] configured event_queue_size %ld (0x%lx)",
1863 getpid (), vcl_cfg->event_queue_size,
1864 vcl_cfg->event_queue_size);
1866 else if (unformat (line_input, "listen-queue-size 0x%lx",
1867 &vcl_cfg->listen_queue_size))
1869 if (VPPCOM_DEBUG > 0)
1870 clib_warning ("[%d] configured listen_queue_size 0x%lx (%ld)",
1871 getpid (), vcl_cfg->listen_queue_size,
1872 vcl_cfg->listen_queue_size);
1874 else if (unformat (line_input, "listen-queue-size %ld",
1875 &vcl_cfg->listen_queue_size))
1877 if (VPPCOM_DEBUG > 0)
1878 clib_warning ("[%d] configured listen_queue_size %ld (0x%lx)",
1879 getpid (), vcl_cfg->listen_queue_size,
1880 vcl_cfg->listen_queue_size);
1882 else if (unformat (line_input, "app-timeout %f",
1883 &vcl_cfg->app_timeout))
1885 if (VPPCOM_DEBUG > 0)
1886 clib_warning ("[%d] configured app_timeout %f",
1887 getpid (), vcl_cfg->app_timeout);
1889 else if (unformat (line_input, "session-timeout %f",
1890 &vcl_cfg->session_timeout))
1892 if (VPPCOM_DEBUG > 0)
1893 clib_warning ("[%d] configured session_timeout %f",
1894 getpid (), vcl_cfg->session_timeout);
1896 else if (unformat (line_input, "accept-timeout %f",
1897 &vcl_cfg->accept_timeout))
1899 if (VPPCOM_DEBUG > 0)
1900 clib_warning ("[%d] configured accept_timeout %f",
1901 getpid (), vcl_cfg->accept_timeout);
1903 else if (unformat (line_input, "app-proxy-transport-tcp"))
1905 vcl_cfg->app_proxy_transport_tcp = 1;
1906 if (VPPCOM_DEBUG > 0)
1907 clib_warning ("[%d] configured app_proxy_transport_tcp (%d)",
1908 getpid (), vcl_cfg->app_proxy_transport_tcp);
1910 else if (unformat (line_input, "app-proxy-transport-udp"))
1912 vcl_cfg->app_proxy_transport_udp = 1;
1913 if (VPPCOM_DEBUG > 0)
1914 clib_warning ("[%d] configured app_proxy_transport_udp (%d)",
1915 getpid (), vcl_cfg->app_proxy_transport_udp);
1917 else if (unformat (line_input, "app-scope-local"))
1919 vcl_cfg->app_scope_local = 1;
1920 if (VPPCOM_DEBUG > 0)
1921 clib_warning ("[%d] configured app_scope_local (%d)",
1922 getpid (), vcl_cfg->app_scope_local);
1924 else if (unformat (line_input, "app-scope-global"))
1926 vcl_cfg->app_scope_global = 1;
1927 if (VPPCOM_DEBUG > 0)
1928 clib_warning ("[%d] configured app_scope_global (%d)",
1929 getpid (), vcl_cfg->app_scope_global);
1931 else if (unformat (line_input, "namespace-secret %lu",
1932 &vcl_cfg->namespace_secret))
1934 if (VPPCOM_DEBUG > 0)
1936 ("[%d] configured namespace_secret %lu (0x%lx)",
1937 getpid (), vcl_cfg->namespace_secret,
1938 vcl_cfg->namespace_secret);
1940 else if (unformat (line_input, "namespace-id %v",
1941 &vcl_cfg->namespace_id))
1943 vl_api_application_attach_t *mp;
1944 u32 max_nsid_vec_len = sizeof (mp->namespace_id) - 1;
1945 u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id);
1946 if (nsid_vec_len > max_nsid_vec_len)
1948 _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len;
1949 if (VPPCOM_DEBUG > 0)
1950 clib_warning ("[%d] configured namespace_id is too long,"
1951 " truncated to %d characters!", getpid (),
1955 if (VPPCOM_DEBUG > 0)
1956 clib_warning ("[%d] configured namespace_id %v",
1957 getpid (), vcl_cfg->namespace_id);
1959 else if (unformat (line_input, "}"))
1962 if (VPPCOM_DEBUG > 0)
1963 clib_warning ("[%d] completed parsing vppcom config!",
1969 if (line_input->buffer[line_input->index] != '#')
1971 clib_warning ("[%d] Unknown vppcom config option: '%s'",
1973 &line_input->buffer[line_input->index]);
1980 unformat_free (input);
1988 * VPPCOM Public API functions
1991 vppcom_app_create (char *app_name)
1993 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
2004 vppcom_cfg_init (vcl_cfg);
2005 env_var_str = getenv (VPPCOM_ENV_DEBUG);
2009 if (sscanf (env_var_str, "%u", &tmp) != 1)
2010 clib_warning ("[%d] Invalid debug level specified in "
2011 "the environment variable "
2013 " (%s)!\n", getpid (), env_var_str);
2017 clib_warning ("[%d] configured debug level (%u) from "
2018 VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug);
2021 conf_fname = getenv (VPPCOM_ENV_CONF);
2024 conf_fname = VPPCOM_CONF_DEFAULT;
2025 if (VPPCOM_DEBUG > 0)
2026 clib_warning ("[%d] getenv '%s' failed!", getpid (),
2029 vppcom_cfg_heapsize (conf_fname);
2030 clib_fifo_validate (vcm->client_session_index_fifo,
2031 vcm->cfg.listen_queue_size);
2032 vppcom_cfg_read (conf_fname);
2033 env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID);
2036 u32 ns_id_vec_len = strlen (env_var_str);
2038 vec_reset_length (vcm->cfg.namespace_id);
2039 vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1);
2040 clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len);
2042 if (VPPCOM_DEBUG > 0)
2043 clib_warning ("[%d] configured namespace_id (%v) from "
2044 VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (),
2045 vcm->cfg.namespace_id);
2047 env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET);
2051 if (sscanf (env_var_str, "%lu", &tmp) != 1)
2052 clib_warning ("[%d] Invalid namespace secret specified in "
2053 "the environment variable "
2054 VPPCOM_ENV_APP_NAMESPACE_SECRET
2055 " (%s)!\n", getpid (), env_var_str);
2058 vcm->cfg.namespace_secret = tmp;
2059 if (VPPCOM_DEBUG > 0)
2060 clib_warning ("[%d] configured namespace secret (%lu) from "
2061 VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (),
2062 vcm->cfg.namespace_secret);
2065 if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP))
2067 vcm->cfg.app_proxy_transport_tcp = 1;
2068 if (VPPCOM_DEBUG > 0)
2069 clib_warning ("[%d] configured app_proxy_transport_tcp (%u) from "
2070 VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (),
2071 vcm->cfg.app_proxy_transport_tcp);
2073 if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP))
2075 vcm->cfg.app_proxy_transport_udp = 1;
2076 if (VPPCOM_DEBUG > 0)
2077 clib_warning ("[%d] configured app_proxy_transport_udp (%u) from "
2078 VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (),
2079 vcm->cfg.app_proxy_transport_udp);
2081 if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL))
2083 vcm->cfg.app_scope_local = 1;
2084 if (VPPCOM_DEBUG > 0)
2085 clib_warning ("[%d] configured app_scope_local (%u) from "
2086 VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (),
2087 vcm->cfg.app_scope_local);
2089 if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL))
2091 vcm->cfg.app_scope_global = 1;
2092 if (VPPCOM_DEBUG > 0)
2093 clib_warning ("[%d] configured app_scope_global (%u) from "
2094 VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (),
2095 vcm->cfg.app_scope_global);
2098 vcm->main_cpu = os_get_thread_index ();
2099 heap = clib_mem_get_per_cpu_heap ();
2100 h = mheap_header (heap);
2102 /* make the main heap thread-safe */
2103 h->flags |= MHEAP_FLAG_THREAD_SAFE;
2105 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
2107 clib_time_init (&vcm->clib_time);
2108 vppcom_init_error_string_table ();
2109 svm_fifo_segment_init (vcl_cfg->segment_baseva,
2110 20 /* timeout in secs */ );
2111 clib_spinlock_init (&vcm->sessions_lockp);
2112 vppcom_api_hookup ();
2115 if (vcm->my_client_index == ~0)
2117 vcm->app_state = STATE_APP_START;
2118 rv = vppcom_connect_to_vpp (app_name);
2121 clib_warning ("[%d] ERROR: couldn't connect to VPP!", getpid ());
2125 if (VPPCOM_DEBUG > 0)
2126 clib_warning ("[%d] sending session enable", getpid ());
2128 rv = vppcom_app_session_enable ();
2131 clib_warning ("[%d] ERROR: vppcom_app_session_enable() failed!",
2136 if (VPPCOM_DEBUG > 0)
2137 clib_warning ("[%d] sending app attach", getpid ());
2139 rv = vppcom_app_attach ();
2142 clib_warning ("[%d] ERROR: vppcom_app_attach() failed!", getpid ());
2146 if (VPPCOM_DEBUG > 0)
2147 clib_warning ("[%d] app_name '%s', my_client_index %d (0x%x)",
2148 getpid (), app_name, vcm->my_client_index,
2149 vcm->my_client_index);
2156 vppcom_app_destroy (void)
2160 if (vcm->my_client_index == ~0)
2163 if (VPPCOM_DEBUG > 0)
2164 clib_warning ("[%d] detaching from VPP, my_client_index %d (0x%x)",
2165 getpid (), vcm->my_client_index, vcm->my_client_index);
2167 if (VPPCOM_DEBUG > 0)
2169 ELOG_TYPE_DECLARE (e) =
2171 .format = "app_detach:C:%d",.format_args = "i4",};
2176 ed = ELOG_TRACK_DATA (&vcm->elog_main, e, vcm->elog_track);
2177 ed->data = vcm->my_client_index;
2180 vppcom_app_detach ();
2181 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
2182 if (PREDICT_FALSE (rv))
2184 if (VPPCOM_DEBUG > 0)
2185 clib_warning ("[%d] application detach timed out! returning %d (%s)",
2186 getpid (), rv, vppcom_retval_str (rv));
2189 /* Finished with logging before client gets reset to ~0 */
2190 if (VPPCOM_DEBUG > 0)
2193 vl_client_disconnect_from_vlib ();
2194 vcm->my_client_index = ~0;
2195 vcm->app_state = STATE_APP_START;
2199 vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking)
2204 clib_spinlock_lock (&vcm->sessions_lockp);
2205 pool_get (vcm->sessions, session);
2206 memset (session, 0, sizeof (*session));
2207 session_index = session - vcm->sessions;
2210 session->proto = proto;
2211 session->state = STATE_START;
2212 session->is_nonblocking = is_nonblocking ? 1 : 0;
2213 session->vpp_handle = ~0;
2214 clib_spinlock_unlock (&vcm->sessions_lockp);
2216 if (VPPCOM_DEBUG > 0)
2217 clib_warning ("[%d] sid %u", getpid (), session_index);
2219 return (int) session_index;
2223 vppcom_session_close (uint32_t session_index)
2225 session_t *session = 0;
2234 session_state_t state;
2236 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2237 is_listen = session->is_listen;
2238 is_vep = session->is_vep;
2239 is_vep_session = session->is_vep_session;
2240 next_sid = session->vep.next_sid;
2241 vep_idx = session->vep.vep_idx;
2242 state = session->state;
2243 vpp_handle = session->vpp_handle;
2244 clib_spinlock_unlock (&vcm->sessions_lockp);
2246 if (VPPCOM_DEBUG > 0)
2249 clib_warning ("[%d] vep_idx %u / sid %u: closing epoll session...",
2250 getpid (), session_index, session_index);
2252 clib_warning ("[%d] vpp handle 0x%llx, sid %d: closing session...",
2253 getpid (), vpp_handle, session_index);
2258 while (next_sid != ~0)
2260 rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0);
2261 if ((VPPCOM_DEBUG > 0) && PREDICT_FALSE (rv < 0))
2262 clib_warning ("[%d] vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
2263 "vep_idx %u failed! rv %d (%s)", getpid (),
2264 vpp_handle, next_sid, vep_idx,
2265 rv, vppcom_retval_str (rv));
2267 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2268 next_sid = session->vep.next_sid;
2269 clib_spinlock_unlock (&vcm->sessions_lockp);
2276 rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
2277 if ((VPPCOM_DEBUG > 0) && (rv < 0))
2278 clib_warning ("[%d] vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
2279 "vep_idx %u failed! rv %d (%s)",
2280 getpid (), vpp_handle, session_index,
2281 vep_idx, rv, vppcom_retval_str (rv));
2286 if (state == STATE_LISTEN)
2288 rv = vppcom_session_unbind (session_index);
2289 if (PREDICT_FALSE (rv < 0))
2291 if (VPPCOM_DEBUG > 0)
2292 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
2293 "listener unbind failed! rv %d (%s)",
2294 getpid (), vpp_handle, session_index,
2295 rv, vppcom_retval_str (rv));
2300 else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN))
2302 rv = vppcom_session_disconnect (session_index);
2303 if (PREDICT_FALSE (rv < 0))
2304 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2305 "session disconnect failed! rv %d (%s)",
2306 getpid (), vpp_handle, session_index,
2307 rv, vppcom_retval_str (rv));
2311 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2312 vpp_handle = session->vpp_handle;
2313 if (vpp_handle != ~0)
2315 p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle);
2317 hash_unset (vcm->session_index_by_vpp_handles, vpp_handle);
2319 pool_put_index (vcm->sessions, session_index);
2320 clib_spinlock_unlock (&vcm->sessions_lockp);
2322 if (VPPCOM_DEBUG > 0)
2325 clib_warning ("[%d] vep_idx %u / sid %u: epoll session removed.",
2326 getpid (), session_index, session_index);
2328 clib_warning ("[%d] vpp handle 0x%llx, sid %u: session removed.",
2329 getpid (), vpp_handle, session_index);
2336 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
2338 session_t *session = 0;
2342 return VPPCOM_EINVAL;
2344 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2346 if (session->is_vep)
2348 clib_spinlock_unlock (&vcm->sessions_lockp);
2349 clib_warning ("[%d] ERROR: sid %u: cannot bind to an epoll session!",
2350 getpid (), session_index);
2355 session->vrf = ep->vrf;
2356 session->lcl_addr.is_ip4 = ep->is_ip4;
2357 session->lcl_addr.ip46 = to_ip46 (!ep->is_ip4, ep->ip);
2358 session->lcl_port = ep->port;
2360 if (VPPCOM_DEBUG > 0)
2361 clib_warning ("[%d] sid %u: binding to local %s address %U "
2362 "port %u, proto %s", getpid (), session_index,
2363 session->lcl_addr.is_ip4 ? "IPv4" : "IPv6",
2364 format_ip46_address, &session->lcl_addr.ip46,
2365 session->lcl_addr.is_ip4,
2366 clib_net_to_host_u16 (session->lcl_port),
2367 session->proto ? "UDP" : "TCP");
2369 clib_spinlock_unlock (&vcm->sessions_lockp);
2375 vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
2377 session_t *listen_session = 0;
2378 u64 listen_vpp_handle;
2381 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2383 if (listen_session->is_vep)
2385 clib_spinlock_unlock (&vcm->sessions_lockp);
2386 clib_warning ("[%d] ERROR: sid %u: cannot listen on an "
2387 "epoll session!", getpid (), listen_session_index);
2392 listen_vpp_handle = listen_session->vpp_handle;
2393 if (listen_session->is_listen)
2395 clib_spinlock_unlock (&vcm->sessions_lockp);
2396 if (VPPCOM_DEBUG > 0)
2397 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
2398 "already in listen state!",
2399 getpid (), listen_vpp_handle, listen_session_index);
2404 if (VPPCOM_DEBUG > 0)
2405 clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending bind request...",
2406 getpid (), listen_vpp_handle, listen_session_index);
2408 vppcom_send_bind_sock (listen_session, listen_session_index);
2409 clib_spinlock_unlock (&vcm->sessions_lockp);
2411 vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN,
2412 vcm->cfg.session_timeout);
2414 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2415 if (PREDICT_FALSE (retval))
2417 if (VPPCOM_DEBUG > 0)
2418 clib_warning ("[%d] vpp handle 0x%llx, sid %u: bind failed! "
2419 "returning %d (%s)", getpid (),
2420 listen_session->vpp_handle, listen_session_index,
2421 retval, vppcom_retval_str (retval));
2422 clib_spinlock_unlock (&vcm->sessions_lockp);
2427 clib_fifo_validate (vcm->client_session_index_fifo, q_len);
2428 clib_spinlock_unlock (&vcm->sessions_lockp);
2434 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
2435 uint32_t flags, double wait_for_time)
2437 session_t *listen_session = 0;
2438 session_t *client_session = 0;
2439 u32 client_session_index = ~0;
2443 u64 listen_vpp_handle;
2445 VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session);
2447 if (listen_session->is_vep)
2449 clib_spinlock_unlock (&vcm->sessions_lockp);
2450 clib_warning ("[%d] ERROR: sid %u: cannot accept on an "
2451 "epoll session!", getpid (), listen_session_index);
2456 listen_vpp_handle = listen_session->vpp_handle;
2457 if (listen_session->state != STATE_LISTEN)
2459 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2460 "not in listen state! state 0x%x (%s)", getpid (),
2461 listen_vpp_handle, listen_session_index,
2462 listen_session->state,
2463 vppcom_session_state_str (listen_session->state));
2464 clib_spinlock_unlock (&vcm->sessions_lockp);
2468 wait_for = ((listen_session->is_nonblocking) ? 0 :
2469 (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time);
2471 clib_spinlock_unlock (&vcm->sessions_lockp);
2475 rv = vppcom_wait_for_client_session_index (wait_for);
2478 if ((VPPCOM_DEBUG > 0))
2479 clib_warning ("[%d] vpp handle 0x%llx, sid %u: accept failed! "
2480 "returning %d (%s)", getpid (),
2481 listen_vpp_handle, listen_session_index,
2482 rv, vppcom_retval_str (rv));
2483 if ((wait_for == 0) || (wait_for_time > 0))
2490 clib_spinlock_lock (&vcm->sessions_lockp);
2491 clib_fifo_sub1 (vcm->client_session_index_fifo, client_session_index);
2492 rv = vppcom_session_at_index (client_session_index, &client_session);
2493 if (PREDICT_FALSE (rv))
2495 rv = VPPCOM_ECONNABORTED;
2496 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client sid %u "
2497 "lookup failed! returning %d (%s)", getpid (),
2498 listen_vpp_handle, listen_session_index,
2499 client_session_index, rv, vppcom_retval_str (rv));
2503 client_session->is_nonblocking = (flags & O_NONBLOCK) ? 1 : 0;
2504 if (VPPCOM_DEBUG > 0)
2505 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Got a client request! "
2506 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
2507 getpid (), listen_vpp_handle, listen_session_index,
2508 client_session->vpp_handle, client_session_index,
2509 flags, client_session->is_nonblocking);
2511 ep->vrf = client_session->vrf;
2512 ep->is_cut_thru = client_session->is_cut_thru;
2513 ep->is_ip4 = client_session->peer_addr.is_ip4;
2514 ep->port = client_session->peer_port;
2515 if (client_session->peer_addr.is_ip4)
2516 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip4,
2517 sizeof (ip4_address_t));
2519 clib_memcpy (ep->ip, &client_session->peer_addr.ip46.ip6,
2520 sizeof (ip6_address_t));
2522 if (client_session->is_server && client_session->is_cut_thru)
2524 static svm_fifo_segment_create_args_t _a;
2525 svm_fifo_segment_create_args_t *a = &_a;
2526 svm_fifo_segment_private_t *seg;
2528 cut_thru_str = " cut-thru ";
2530 /* Create the segment */
2531 memset (a, 0, sizeof (*a));
2532 a->segment_name = (char *)
2533 format ((u8 *) a->segment_name, "%d:segment%d%c",
2534 getpid (), vcm->unique_segment_index++, 0);
2535 a->segment_size = vcm->cfg.segment_size;
2536 a->preallocated_fifo_pairs = vcm->cfg.preallocated_fifo_pairs;
2537 a->rx_fifo_size = vcm->cfg.rx_fifo_size;
2538 a->tx_fifo_size = vcm->cfg.tx_fifo_size;
2540 rv = svm_fifo_segment_create (a);
2541 if (PREDICT_FALSE (rv))
2543 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2544 "client sid %u svm_fifo_segment_create ('%s') "
2545 "failed! rv %d", getpid (), listen_vpp_handle,
2546 listen_session_index, client_session_index,
2547 a->segment_name, rv);
2548 vec_reset_length (a->new_segment_indices);
2549 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2550 vppcom_send_connect_session_reply (client_session,
2551 client_session_index,
2552 client_session->vpp_handle,
2553 client_session->client_context,
2555 clib_spinlock_unlock (&vcm->sessions_lockp);
2560 client_session->segment_name = vec_dup ((u8 *) a->segment_name);
2561 client_session->sm_seg_index = a->new_segment_indices[0];
2562 vec_free (a->new_segment_indices);
2564 seg = svm_fifo_segment_get_segment (client_session->sm_seg_index);
2565 client_session->server_rx_fifo =
2566 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.rx_fifo_size,
2567 FIFO_SEGMENT_RX_FREELIST);
2568 if (PREDICT_FALSE (!client_session->server_rx_fifo))
2570 svm_fifo_segment_delete (seg);
2571 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2572 "client sid %u rx fifo alloc failed! "
2573 "size %ld (0x%lx)", getpid (), listen_vpp_handle,
2574 listen_session_index, client_session_index,
2575 vcm->cfg.rx_fifo_size, vcm->cfg.rx_fifo_size);
2576 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2577 vppcom_send_connect_session_reply (client_session,
2578 client_session_index,
2579 client_session->vpp_handle,
2580 client_session->client_context,
2582 clib_spinlock_unlock (&vcm->sessions_lockp);
2586 client_session->server_rx_fifo->master_session_index =
2587 client_session_index;
2589 client_session->server_tx_fifo =
2590 svm_fifo_segment_alloc_fifo (seg, vcm->cfg.tx_fifo_size,
2591 FIFO_SEGMENT_TX_FREELIST);
2592 if (PREDICT_FALSE (!client_session->server_tx_fifo))
2594 svm_fifo_segment_delete (seg);
2595 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2596 "client sid %u tx fifo alloc failed! "
2597 "size %ld (0x%lx)", getpid (), listen_vpp_handle,
2598 listen_session_index, client_session_index,
2599 vcm->cfg.tx_fifo_size, vcm->cfg.tx_fifo_size);
2600 rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
2601 vppcom_send_connect_session_reply (client_session,
2602 client_session_index,
2603 client_session->vpp_handle,
2604 client_session->client_context,
2606 clib_spinlock_unlock (&vcm->sessions_lockp);
2610 client_session->server_tx_fifo->master_session_index =
2611 client_session_index;
2613 if (VPPCOM_DEBUG > 1)
2614 clib_warning ("[%d] vpp handle 0x%llx, sid %u: client sid %u "
2615 "created segment '%s', rx_fifo %p, tx_fifo %p",
2616 getpid (), listen_vpp_handle, listen_session_index,
2617 client_session_index, client_session->segment_name,
2618 client_session->server_rx_fifo,
2619 client_session->server_tx_fifo);
2621 #ifdef CUT_THRU_EVENT_QUEUE /* TBD */
2624 ssvm_shared_header_t *sh = seg->ssvm.sh;
2626 ssvm_lock_non_recursive (sh, 1);
2627 oldheap = ssvm_push_heap (sh);
2628 event_q = client_session->vpp_event_queue =
2629 unix_shared_memory_queue_init (vcm->cfg.event_queue_size,
2630 sizeof (session_fifo_event_t),
2631 getpid (), 0 /* signal not sent */ );
2632 ssvm_pop_heap (oldheap);
2633 ssvm_unlock_non_recursive (sh);
2636 vppcom_send_connect_session_reply (client_session,
2637 client_session_index,
2638 client_session->vpp_handle,
2639 client_session->client_context,
2640 0 /* retval OK */ );
2645 vppcom_send_accept_session_reply (client_session->vpp_handle,
2646 client_session->client_context,
2647 0 /* retval OK */ );
2650 if (VPPCOM_DEBUG > 0)
2651 clib_warning ("[%d] vpp handle 0x%llx, sid %u: accepted vpp handle "
2652 "0x%llx, sid %u%sconnection to local %s address "
2653 "%U port %u", getpid (), listen_vpp_handle,
2654 listen_session_index, client_session->vpp_handle,
2655 client_session_index, cut_thru_str,
2656 client_session->lcl_addr.is_ip4 ? "IPv4" : "IPv6",
2657 format_ip46_address, &client_session->lcl_addr.ip46,
2658 client_session->lcl_addr.is_ip4,
2659 clib_net_to_host_u16 (client_session->lcl_port));
2661 clib_spinlock_unlock (&vcm->sessions_lockp);
2662 rv = (int) client_session_index;
2668 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
2670 session_t *session = 0;
2671 int rv, retval = VPPCOM_OK;
2672 u64 vpp_handle = ~0;
2674 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2676 if (PREDICT_FALSE (session->is_vep))
2678 clib_spinlock_unlock (&vcm->sessions_lockp);
2679 clib_warning ("[%d] ERROR: sid %u: cannot connect on an epoll session!",
2680 getpid (), session_index);
2685 vpp_handle = session->vpp_handle;
2686 if (PREDICT_FALSE (session->is_server))
2688 clib_spinlock_unlock (&vcm->sessions_lockp);
2689 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: is in use "
2690 "as a server session!", getpid (), vpp_handle,
2696 if (PREDICT_FALSE (session->state & CLIENT_STATE_OPEN))
2698 if (VPPCOM_DEBUG > 0)
2699 clib_warning ("[%d] vpp handle 0x%llx, sid %u: session already "
2700 "connected to %s %U port %d proto %s, state 0x%x (%s)",
2701 getpid (), vpp_handle, session_index,
2702 session->peer_addr.is_ip4 ? "IPv4" : "IPv6",
2703 format_ip46_address,
2704 &session->peer_addr.ip46, session->peer_addr.is_ip4,
2705 clib_net_to_host_u16 (session->peer_port),
2706 session->proto ? "UDP" : "TCP", session->state,
2707 vppcom_session_state_str (session->state));
2709 clib_spinlock_unlock (&vcm->sessions_lockp);
2713 session->vrf = server_ep->vrf;
2714 session->peer_addr.is_ip4 = server_ep->is_ip4;
2715 session->peer_addr.ip46 = to_ip46 (!server_ep->is_ip4, server_ep->ip);
2716 session->peer_port = server_ep->port;
2718 if (VPPCOM_DEBUG > 0)
2719 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connecting to server "
2720 "%s %U port %d proto %s",
2721 getpid (), vpp_handle, session_index,
2722 session->peer_addr.is_ip4 ? "IPv4" : "IPv6",
2723 format_ip46_address,
2724 &session->peer_addr.ip46, session->peer_addr.is_ip4,
2725 clib_net_to_host_u16 (session->peer_port),
2726 session->proto ? "UDP" : "TCP");
2728 vppcom_send_connect_sock (session, session_index);
2729 clib_spinlock_unlock (&vcm->sessions_lockp);
2732 vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
2733 vcm->cfg.session_timeout);
2735 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2736 vpp_handle = session->vpp_handle;
2737 clib_spinlock_unlock (&vcm->sessions_lockp);
2740 if (PREDICT_FALSE (retval))
2743 if (VPPCOM_DEBUG > 0)
2744 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connect failed! "
2745 "returning %d (%s)", getpid (), vpp_handle,
2746 session_index, rv, vppcom_retval_str (rv));
2748 else if (VPPCOM_DEBUG > 0)
2749 clib_warning ("[%d] vpp handle 0x%llx, sid %u: connected!",
2750 getpid (), vpp_handle, session_index);
2756 vppcom_session_read_internal (uint32_t session_index, void *buf, int n,
2759 session_t *session = 0;
2760 svm_fifo_t *rx_fifo;
2765 session_state_t state;
2772 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2774 if (PREDICT_FALSE (session->is_vep))
2776 clib_spinlock_unlock (&vcm->sessions_lockp);
2777 clib_warning ("[%d] ERROR: sid %u: cannot read from an epoll session!",
2778 getpid (), session_index);
2783 vpp_handle = session->vpp_handle;
2784 is_server = session->is_server;
2785 is_nonblocking = session->is_nonblocking;
2786 state = session->state;
2787 if (PREDICT_FALSE (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))))
2789 clib_spinlock_unlock (&vcm->sessions_lockp);
2790 rv = ((state == STATE_DISCONNECT) ?
2791 VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
2793 if (VPPCOM_DEBUG > 0)
2794 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s session is "
2795 "not open! state 0x%x (%s), returning %d (%s)",
2796 getpid (), vpp_handle, session_index,
2797 is_server ? "server" : "client", state,
2798 vppcom_session_state_str (state),
2799 rv, vppcom_retval_str (rv));
2803 rx_fifo = ((!session->is_cut_thru || is_server) ?
2804 session->server_rx_fifo : session->server_tx_fifo);
2805 fifo_str = ((!session->is_cut_thru || is_server) ?
2806 "server_rx_fifo" : "server_tx_fifo");
2807 clib_spinlock_unlock (&vcm->sessions_lockp);
2812 n_read = svm_fifo_peek (rx_fifo, 0, n, buf);
2814 n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf);
2816 while (!is_nonblocking && (n_read <= 0));
2820 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2822 poll_et = (((EPOLLET | EPOLLIN) & session->vep.ev.events) ==
2823 (EPOLLET | EPOLLIN));
2825 session->vep.et_mask |= EPOLLIN;
2827 if (state == STATE_CLOSE_ON_EMPTY)
2829 session_state_t new_state = STATE_DISCONNECT;
2830 rv = VPPCOM_ECONNRESET;
2832 if (VPPCOM_DEBUG > 1)
2834 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Empty fifo "
2835 "with %s session state 0x%x (%s)!"
2836 " Setting state to 0x%x (%s), returning %d (%s)",
2837 getpid (), vpp_handle, session_index,
2838 is_server ? "server" : "client",
2839 state, vppcom_session_state_str (state),
2840 new_state, vppcom_session_state_str (new_state),
2841 rv, vppcom_retval_str (rv));
2844 session->state = new_state;
2849 clib_spinlock_unlock (&vcm->sessions_lockp);
2854 if (VPPCOM_DEBUG > 2)
2857 clib_warning ("[%d] vpp handle 0x%llx, sid %u: read %d bytes "
2858 "from %s (%p)", getpid (), vpp_handle,
2859 session_index, n_read, fifo_str, rx_fifo);
2861 clib_warning ("[%d] vpp handle 0x%llx, sid %u: nothing read! "
2862 "returning %d (%s)", getpid (), vpp_handle,
2863 session_index, rv, vppcom_retval_str (rv));
2870 vppcom_session_read (uint32_t session_index, void *buf, int n)
2872 return (vppcom_session_read_internal (session_index, buf, n, 0));
2876 vppcom_session_peek (uint32_t session_index, void *buf, int n)
2878 return (vppcom_session_read_internal (session_index, buf, n, 1));
2882 vppcom_session_read_ready (session_t * session, u32 session_index)
2884 svm_fifo_t *rx_fifo = 0;
2888 u8 is_server = session->is_server;
2889 session_state_t state = session->state;
2890 u64 vpp_handle = session->vpp_handle;
2892 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2893 if (PREDICT_FALSE (session->is_vep))
2895 clib_warning ("[%d] ERROR: sid %u: cannot read from an "
2896 "epoll session!", getpid (), session_index);
2901 if (session->is_listen)
2902 ready = clib_fifo_elts (vcm->client_session_index_fifo);
2905 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN | STATE_LISTEN)))
2907 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
2910 if (VPPCOM_DEBUG > 1)
2911 clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s session is "
2912 "not open! state 0x%x (%s), returning %d (%s)",
2913 getpid (), vpp_handle, session_index,
2914 is_server ? "server" : "client",
2915 state, vppcom_session_state_str (state),
2916 rv, vppcom_retval_str (rv));
2920 rx_fifo = ((!session->is_cut_thru || is_server) ?
2921 session->server_rx_fifo : session->server_tx_fifo);
2923 ready = svm_fifo_max_dequeue (rx_fifo);
2929 ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN);
2931 session->vep.et_mask |= EPOLLIN;
2933 if (state == STATE_CLOSE_ON_EMPTY)
2935 rv = VPPCOM_ECONNRESET;
2936 session_state_t new_state = STATE_DISCONNECT;
2938 if (VPPCOM_DEBUG > 1)
2940 clib_warning ("[%d] vpp handle 0x%llx, sid %u: Empty fifo with"
2941 " %s session state 0x%x (%s)! Setting state to "
2942 "0x%x (%s), returning %d (%s)",
2943 getpid (), session_index, vpp_handle,
2944 is_server ? "server" : "client",
2945 state, vppcom_session_state_str (state),
2946 new_state, vppcom_session_state_str (new_state),
2947 rv, vppcom_retval_str (rv));
2949 session->state = new_state;
2955 if (vcm->app_event_queue->cursize &&
2956 !pthread_mutex_trylock (&vcm->app_event_queue->mutex))
2958 u32 i, n_to_dequeue = vcm->app_event_queue->cursize;
2959 session_fifo_event_t e;
2961 for (i = 0; i < n_to_dequeue; i++)
2962 unix_shared_memory_queue_sub_raw (vcm->app_event_queue, (u8 *) & e);
2964 pthread_mutex_unlock (&vcm->app_event_queue->mutex);
2972 vppcom_session_write (uint32_t session_index, void *buf, int n)
2974 session_t *session = 0;
2975 svm_fifo_t *tx_fifo;
2976 unix_shared_memory_queue_t *q;
2977 session_fifo_event_t evt;
2983 session_state_t state;
2988 VCL_LOCK_AND_GET_SESSION (session_index, &session);
2990 if (PREDICT_FALSE (session->is_vep))
2992 clib_spinlock_unlock (&vcm->sessions_lockp);
2993 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
2994 "cannot write to an epoll session!",
2995 getpid (), session->vpp_handle, session_index);
3001 is_server = session->is_server;
3002 is_nonblocking = session->is_nonblocking;
3003 vpp_handle = session->vpp_handle;
3004 state = session->state;
3005 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
3007 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
3010 clib_spinlock_unlock (&vcm->sessions_lockp);
3011 if (VPPCOM_DEBUG > 1)
3012 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3013 "%s session is not open! state 0x%x (%s)",
3014 getpid (), vpp_handle, session_index,
3015 is_server ? "server" : "client", state,
3016 vppcom_session_state_str (state));
3020 tx_fifo = ((!session->is_cut_thru || is_server) ?
3021 session->server_tx_fifo : session->server_rx_fifo);
3022 fifo_str = ((!session->is_cut_thru || is_server) ?
3023 "server_tx_fifo" : "server_rx_fifo");
3024 clib_spinlock_unlock (&vcm->sessions_lockp);
3028 n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf);
3030 while (!is_nonblocking && (n_write <= 0));
3032 /* If event wasn't set, add one */
3033 if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo))
3035 /* Fabricate TX event, send to vpp */
3037 evt.event_type = FIFO_EVENT_APP_TX;
3039 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3040 q = session->vpp_event_queue;
3042 unix_shared_memory_queue_add (q, (u8 *) & evt,
3043 0 /* do wait for mutex */ );
3044 clib_spinlock_unlock (&vcm->sessions_lockp);
3045 if (VPPCOM_DEBUG > 1)
3046 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3047 "added FIFO_EVENT_APP_TX to "
3048 "vpp_event_q %p, n_write %d", getpid (),
3049 vpp_handle, session_index, q, n_write);
3054 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3056 poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
3057 (EPOLLET | EPOLLOUT));
3059 session->vep.et_mask |= EPOLLOUT;
3061 if (state == STATE_CLOSE_ON_EMPTY)
3063 session_state_t new_state = STATE_DISCONNECT;
3064 rv = VPPCOM_ECONNRESET;
3066 if (VPPCOM_DEBUG > 1)
3068 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3069 "Empty fifo with %s session state 0x%x (%s)!"
3070 " Setting state to 0x%x (%s), returning %d (%s)",
3071 getpid (), vpp_handle, session_index,
3072 is_server ? "server" : "client",
3073 state, vppcom_session_state_str (state),
3074 new_state, vppcom_session_state_str (new_state),
3075 rv, vppcom_retval_str (rv));
3078 session->state = new_state;
3083 clib_spinlock_unlock (&vcm->sessions_lockp);
3088 if (VPPCOM_DEBUG > 2)
3091 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3092 "FIFO-FULL %s (%p)", getpid (), vpp_handle,
3093 session_index, fifo_str, tx_fifo);
3095 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3096 "wrote %d bytes to %s (%p)", getpid (), vpp_handle,
3097 session_index, n_write, fifo_str, tx_fifo);
3104 vppcom_session_write_ready (session_t * session, u32 session_index)
3106 svm_fifo_t *tx_fifo;
3111 u8 is_server = session->is_server;
3112 session_state_t state = session->state;
3114 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
3115 if (PREDICT_FALSE (session->is_vep))
3117 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3118 "cannot write to an epoll session!",
3119 getpid (), session->vpp_handle, session_index);
3124 if (PREDICT_FALSE (session->is_listen))
3126 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3127 "cannot write to a listen session!",
3128 getpid (), session->vpp_handle, session_index);
3133 if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))
3135 session_state_t state = session->state;
3137 rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET :
3140 clib_warning ("[%d] ERROR: vpp handle 0x%llx, sid %u: "
3141 "%s session is not open! state 0x%x (%s), "
3142 "returning %d (%s)", getpid (), session->vpp_handle,
3143 session_index, is_server ? "server" : "client",
3144 state, vppcom_session_state_str (state),
3145 rv, vppcom_retval_str (rv));
3149 tx_fifo = ((!session->is_cut_thru || session->is_server) ?
3150 session->server_tx_fifo : session->server_rx_fifo);
3151 fifo_str = ((!session->is_cut_thru || session->is_server) ?
3152 "server_tx_fifo" : "server_rx_fifo");
3154 ready = svm_fifo_max_enqueue (tx_fifo);
3156 if (VPPCOM_DEBUG > 3)
3157 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3158 "peek %s (%p), ready = %d", getpid (),
3159 session->vpp_handle, session_index,
3160 fifo_str, tx_fifo, ready);
3164 poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) ==
3165 (EPOLLET | EPOLLOUT));
3167 session->vep.et_mask |= EPOLLOUT;
3169 if (state == STATE_CLOSE_ON_EMPTY)
3171 rv = VPPCOM_ECONNRESET;
3172 session_state_t new_state = STATE_DISCONNECT;
3174 if (VPPCOM_DEBUG > 1)
3176 clib_warning ("[%d] vpp handle 0x%llx, sid %u: "
3177 "Empty fifo with %s session "
3178 "state 0x%x (%s)! Setting state to 0x%x (%s), "
3179 "returning %d (%s)", getpid (),
3180 session->vpp_handle, session_index,
3181 is_server ? "server" : "client",
3182 state, vppcom_session_state_str (state),
3183 new_state, vppcom_session_state_str (new_state),
3184 rv, vppcom_retval_str (rv));
3186 session->state = new_state;
3196 vppcom_select (unsigned long n_bits, unsigned long *read_map,
3197 unsigned long *write_map, unsigned long *except_map,
3198 double time_to_wait)
3201 session_t *session = 0;
3202 int rv, bits_set = 0;
3203 f64 timeout = clib_time_now (&vcm->clib_time) + time_to_wait;
3204 u32 minbits = clib_max (n_bits, BITS (uword));
3206 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
3208 if (n_bits && read_map)
3210 clib_bitmap_validate (vcm->rd_bitmap, minbits);
3211 clib_memcpy (vcm->rd_bitmap, read_map, vec_len (vcm->rd_bitmap));
3212 memset (read_map, 0, vec_len (vcm->rd_bitmap));
3214 if (n_bits && write_map)
3216 clib_bitmap_validate (vcm->wr_bitmap, minbits);
3217 clib_memcpy (vcm->wr_bitmap, write_map, vec_len (vcm->wr_bitmap));
3218 memset (write_map, 0, vec_len (vcm->wr_bitmap));
3220 if (n_bits && except_map)
3222 clib_bitmap_validate (vcm->ex_bitmap, minbits);
3223 clib_memcpy (vcm->ex_bitmap, except_map, vec_len (vcm->ex_bitmap));
3224 memset (except_map, 0, vec_len (vcm->ex_bitmap));
3234 clib_bitmap_foreach (session_index, vcm->rd_bitmap,
3236 clib_spinlock_lock (&vcm->sessions_lockp);
3237 rv = vppcom_session_at_index (session_index, &session);
3240 clib_spinlock_unlock (&vcm->sessions_lockp);
3241 if (VPPCOM_DEBUG > 1)
3242 clib_warning ("[%d] session %d specified in "
3243 "read_map is closed.", getpid (),
3245 bits_set = VPPCOM_EBADFD;
3249 rv = vppcom_session_read_ready (session, session_index);
3250 clib_spinlock_unlock (&vcm->sessions_lockp);
3251 if (except_map && vcm->ex_bitmap &&
3252 clib_bitmap_get (vcm->ex_bitmap, session_index) &&
3255 // TBD: clib_warning
3256 clib_bitmap_set_no_check (except_map, session_index, 1);
3261 // TBD: clib_warning
3262 clib_bitmap_set_no_check (read_map, session_index, 1);
3270 clib_bitmap_foreach (session_index, vcm->wr_bitmap,
3272 clib_spinlock_lock (&vcm->sessions_lockp);
3273 rv = vppcom_session_at_index (session_index, &session);
3276 clib_spinlock_unlock (&vcm->sessions_lockp);
3277 if (VPPCOM_DEBUG > 0)
3278 clib_warning ("[%d] session %d specified in "
3279 "write_map is closed.", getpid (),
3281 bits_set = VPPCOM_EBADFD;
3285 rv = vppcom_session_write_ready (session, session_index);
3286 clib_spinlock_unlock (&vcm->sessions_lockp);
3287 if (write_map && (rv > 0))
3289 // TBD: clib_warning
3290 clib_bitmap_set_no_check (write_map, session_index, 1);
3298 clib_bitmap_foreach (session_index, vcm->ex_bitmap,
3300 clib_spinlock_lock (&vcm->sessions_lockp);
3301 rv = vppcom_session_at_index (session_index, &session);
3304 clib_spinlock_unlock (&vcm->sessions_lockp);
3305 if (VPPCOM_DEBUG > 1)
3306 clib_warning ("[%d] session %d specified in "
3307 "except_map is closed.", getpid (),
3309 bits_set = VPPCOM_EBADFD;
3313 rv = vppcom_session_read_ready (session, session_index);
3314 clib_spinlock_unlock (&vcm->sessions_lockp);
3317 // TBD: clib_warning
3318 clib_bitmap_set_no_check (except_map, session_index, 1);
3326 while (clib_time_now (&vcm->clib_time) < timeout);
3333 vep_verify_epoll_chain (u32 vep_idx)
3336 vppcom_epoll_t *vep;
3340 if (VPPCOM_DEBUG <= 1)
3343 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
3344 rv = vppcom_session_at_index (vep_idx, &session);
3345 if (PREDICT_FALSE (rv))
3347 clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", getpid (), vep_idx);
3350 if (PREDICT_FALSE (!session->is_vep))
3352 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", getpid (),
3356 vep = &session->vep;
3357 clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n"
3360 " is_vep_session = %u\n"
3361 " next_sid = 0x%x (%u)\n"
3362 " wait_cont_idx = 0x%x (%u)\n"
3363 "}\n", getpid (), vep_idx,
3364 session->is_vep, session->is_vep_session,
3365 vep->next_sid, vep->next_sid,
3366 session->wait_cont_idx, session->wait_cont_idx);
3368 for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid)
3370 rv = vppcom_session_at_index (sid, &session);
3371 if (PREDICT_FALSE (rv))
3373 clib_warning ("[%d] ERROR: Invalid sid (%u)!", getpid (), sid);
3376 if (PREDICT_FALSE (session->is_vep))
3377 clib_warning ("[%d] ERROR: sid (%u) is a vep!", getpid (), vep_idx);
3378 else if (PREDICT_FALSE (!session->is_vep_session))
3380 clib_warning ("[%d] ERROR: session (%u) is not a vep session!",
3384 vep = &session->vep;
3385 if (PREDICT_FALSE (vep->vep_idx != vep_idx))
3386 clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != "
3387 "vep_idx (%u)!", getpid (),
3388 sid, session->vep.vep_idx, vep_idx);
3389 if (session->is_vep_session)
3391 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
3393 " next_sid = 0x%x (%u)\n"
3394 " prev_sid = 0x%x (%u)\n"
3395 " vep_idx = 0x%x (%u)\n"
3396 " ev.events = 0x%x\n"
3397 " ev.data.u64 = 0x%llx\n"
3401 vep->next_sid, vep->next_sid,
3402 vep->prev_sid, vep->prev_sid,
3403 vep->vep_idx, vep->vep_idx,
3404 vep->ev.events, vep->ev.data.u64, vep->et_mask);
3409 clib_warning ("[%d] vep_idx (%u): Dump complete!\n", getpid (), vep_idx);
3413 vppcom_epoll_create (void)
3415 session_t *vep_session;
3418 clib_spinlock_lock (&vcm->sessions_lockp);
3419 pool_get (vcm->sessions, vep_session);
3420 memset (vep_session, 0, sizeof (*vep_session));
3421 vep_idx = vep_session - vcm->sessions;
3423 vep_session->is_vep = 1;
3424 vep_session->vep.vep_idx = ~0;
3425 vep_session->vep.next_sid = ~0;
3426 vep_session->vep.prev_sid = ~0;
3427 vep_session->wait_cont_idx = ~0;
3428 vep_session->vpp_handle = ~0;
3429 clib_spinlock_unlock (&vcm->sessions_lockp);
3431 if (VPPCOM_DEBUG > 0)
3432 clib_warning ("[%d] Created vep_idx %u / sid %u!",
3433 getpid (), vep_idx, vep_idx);
3439 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
3440 struct epoll_event *event)
3442 session_t *vep_session;
3446 if (vep_idx == session_index)
3448 clib_warning ("[%d] ERROR: vep_idx == session_index (%u)!",
3449 getpid (), vep_idx);
3450 return VPPCOM_EINVAL;
3453 clib_spinlock_lock (&vcm->sessions_lockp);
3454 rv = vppcom_session_at_index (vep_idx, &vep_session);
3455 if (PREDICT_FALSE (rv))
3457 clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", vep_idx);
3460 if (PREDICT_FALSE (!vep_session->is_vep))
3462 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!",
3463 getpid (), vep_idx);
3468 ASSERT (vep_session->vep.vep_idx == ~0);
3469 ASSERT (vep_session->vep.prev_sid == ~0);
3471 rv = vppcom_session_at_index (session_index, &session);
3472 if (PREDICT_FALSE (rv))
3474 if (VPPCOM_DEBUG > 0)
3475 clib_warning ("[%d] ERROR: Invalid session_index (%u)!",
3476 getpid (), session_index);
3479 if (PREDICT_FALSE (session->is_vep))
3481 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
3489 if (PREDICT_FALSE (!event))
3491 clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: NULL pointer to "
3492 "epoll_event structure!", getpid ());
3496 if (vep_session->vep.next_sid != ~0)
3498 session_t *next_session;
3499 rv = vppcom_session_at_index (vep_session->vep.next_sid,
3501 if (PREDICT_FALSE (rv))
3503 clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: Invalid "
3504 "vep.next_sid (%u) on vep_idx (%u)!",
3505 getpid (), vep_session->vep.next_sid, vep_idx);
3508 ASSERT (next_session->vep.prev_sid == vep_idx);
3509 next_session->vep.prev_sid = session_index;
3511 session->vep.next_sid = vep_session->vep.next_sid;
3512 session->vep.prev_sid = vep_idx;
3513 session->vep.vep_idx = vep_idx;
3514 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
3515 session->vep.ev = *event;
3516 session->is_vep = 0;
3517 session->is_vep_session = 1;
3518 vep_session->vep.next_sid = session_index;
3519 if (VPPCOM_DEBUG > 1)
3520 clib_warning ("[%d] EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x,"
3521 " data 0x%llx!", getpid (), vep_idx, session_index,
3522 event->events, event->data.u64);
3526 if (PREDICT_FALSE (!event))
3528 clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: NULL pointer to "
3529 "epoll_event structure!", getpid ());
3533 else if (PREDICT_FALSE (!session->is_vep_session))
3535 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: "
3536 "not a vep session!", getpid (), session_index);
3540 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
3542 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: "
3543 "vep_idx (%u) != vep_idx (%u)!",
3544 getpid (), session_index,
3545 session->vep.vep_idx, vep_idx);
3549 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
3550 session->vep.ev = *event;
3551 if (VPPCOM_DEBUG > 1)
3552 clib_warning ("[%d] EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
3553 " data 0x%llx!", getpid (), vep_idx, session_index,
3554 event->events, event->data.u64);
3558 if (PREDICT_FALSE (!session->is_vep_session))
3560 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: "
3561 "not a vep session!", getpid (), session_index);
3565 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
3567 clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: "
3568 "vep_idx (%u) != vep_idx (%u)!",
3569 getpid (), session_index,
3570 session->vep.vep_idx, vep_idx);
3575 vep_session->wait_cont_idx =
3576 (vep_session->wait_cont_idx == session_index) ?
3577 session->vep.next_sid : vep_session->wait_cont_idx;
3579 if (session->vep.prev_sid == vep_idx)
3580 vep_session->vep.next_sid = session->vep.next_sid;
3583 session_t *prev_session;
3584 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
3585 if (PREDICT_FALSE (rv))
3587 clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid "
3588 "vep.prev_sid (%u) on sid (%u)!",
3589 getpid (), session->vep.prev_sid, session_index);
3592 ASSERT (prev_session->vep.next_sid == session_index);
3593 prev_session->vep.next_sid = session->vep.next_sid;
3595 if (session->vep.next_sid != ~0)
3597 session_t *next_session;
3598 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
3599 if (PREDICT_FALSE (rv))
3601 clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid "
3602 "vep.next_sid (%u) on sid (%u)!",
3603 getpid (), session->vep.next_sid, session_index);
3606 ASSERT (next_session->vep.prev_sid == session_index);
3607 next_session->vep.prev_sid = session->vep.prev_sid;
3610 memset (&session->vep, 0, sizeof (session->vep));
3611 session->vep.next_sid = ~0;
3612 session->vep.prev_sid = ~0;
3613 session->vep.vep_idx = ~0;
3614 session->is_vep_session = 0;
3615 if (VPPCOM_DEBUG > 1)
3616 clib_warning ("[%d] EPOLL_CTL_DEL: vep_idx %u, sid %u!",
3617 getpid (), vep_idx, session_index);
3621 clib_warning ("[%d] ERROR: Invalid operation (%d)!", getpid (), op);
3625 vep_verify_epoll_chain (vep_idx);
3628 clib_spinlock_unlock (&vcm->sessions_lockp);
3633 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
3634 int maxevents, double wait_for_time)
3636 session_t *vep_session;
3638 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
3639 u32 keep_trying = 1;
3641 u32 vep_next_sid, wait_cont_idx;
3644 if (PREDICT_FALSE (maxevents <= 0))
3646 clib_warning ("[%d] ERROR: Invalid maxevents (%d)!",
3647 getpid (), maxevents);
3648 return VPPCOM_EINVAL;
3650 memset (events, 0, sizeof (*events) * maxevents);
3652 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3653 vep_next_sid = vep_session->vep.next_sid;
3654 is_vep = vep_session->is_vep;
3655 wait_cont_idx = vep_session->wait_cont_idx;
3656 clib_spinlock_unlock (&vcm->sessions_lockp);
3658 if (PREDICT_FALSE (!is_vep))
3660 clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!",
3661 getpid (), vep_idx);
3665 if (PREDICT_FALSE (vep_next_sid == ~0))
3667 if (VPPCOM_DEBUG > 0)
3668 clib_warning ("[%d] WARNING: vep_idx (%u) is empty!",
3669 getpid (), vep_idx);
3679 for (sid = (wait_cont_idx == ~0) ? vep_next_sid : wait_cont_idx;
3680 sid != ~0; sid = next_sid)
3682 u32 session_events, et_mask, clear_et_mask, session_vep_idx;
3683 u8 add_event, is_vep_session;
3685 u64 session_ev_data;
3687 VCL_LOCK_AND_GET_SESSION (sid, &session);
3688 next_sid = session->vep.next_sid;
3689 session_events = session->vep.ev.events;
3690 et_mask = session->vep.et_mask;
3691 is_vep = session->is_vep;
3692 is_vep_session = session->is_vep_session;
3693 session_vep_idx = session->vep.vep_idx;
3694 session_ev_data = session->vep.ev.data.u64;
3695 clib_spinlock_unlock (&vcm->sessions_lockp);
3697 if (PREDICT_FALSE (is_vep))
3699 if (VPPCOM_DEBUG > 0)
3700 clib_warning ("[%d] ERROR: sid (%u) is a vep!",
3701 getpid (), vep_idx);
3705 if (PREDICT_FALSE (!is_vep_session))
3707 if (VPPCOM_DEBUG > 0)
3708 clib_warning ("[%d] ERROR: session (%u) is not "
3709 "a vep session!", getpid (), sid);
3713 if (PREDICT_FALSE (session_vep_idx != vep_idx))
3715 clib_warning ("[%d] ERROR: session (%u) "
3716 "vep_idx (%u) != vep_idx (%u)!",
3717 getpid (), sid, session->vep.vep_idx, vep_idx);
3722 add_event = clear_et_mask = 0;
3724 if (EPOLLIN & session_events)
3726 VCL_LOCK_AND_GET_SESSION (sid, &session);
3727 ready = vppcom_session_read_ready (session, sid);
3728 clib_spinlock_unlock (&vcm->sessions_lockp);
3729 if ((ready > 0) && (EPOLLIN & et_mask))
3732 events[num_ev].events |= EPOLLIN;
3733 if (((EPOLLET | EPOLLIN) & session_events) ==
3734 (EPOLLET | EPOLLIN))
3735 clear_et_mask |= EPOLLIN;
3742 case VPPCOM_ECONNRESET:
3743 events[num_ev].events |= EPOLLHUP | EPOLLRDHUP;
3747 events[num_ev].events |= EPOLLERR;
3753 if (EPOLLOUT & session_events)
3755 VCL_LOCK_AND_GET_SESSION (sid, &session);
3756 ready = vppcom_session_write_ready (session, sid);
3757 clib_spinlock_unlock (&vcm->sessions_lockp);
3758 if ((ready > 0) && (EPOLLOUT & et_mask))
3761 events[num_ev].events |= EPOLLOUT;
3762 if (((EPOLLET | EPOLLOUT) & session_events) ==
3763 (EPOLLET | EPOLLOUT))
3764 clear_et_mask |= EPOLLOUT;
3771 case VPPCOM_ECONNRESET:
3772 events[num_ev].events |= EPOLLHUP;
3776 events[num_ev].events |= EPOLLERR;
3784 events[num_ev].data.u64 = session_ev_data;
3785 if (EPOLLONESHOT & session_events)
3787 VCL_LOCK_AND_GET_SESSION (sid, &session);
3788 session->vep.ev.events = 0;
3789 clib_spinlock_unlock (&vcm->sessions_lockp);
3792 if (num_ev == maxevents)
3794 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3795 vep_session->wait_cont_idx = next_sid;
3796 clib_spinlock_unlock (&vcm->sessions_lockp);
3800 if (wait_cont_idx != ~0)
3803 next_sid = vep_next_sid;
3804 else if (next_sid == wait_cont_idx)
3808 if (wait_for_time != -1)
3809 keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
3811 while ((num_ev == 0) && keep_trying);
3813 if (wait_cont_idx != ~0)
3815 VCL_LOCK_AND_GET_SESSION (vep_idx, &vep_session);
3816 vep_session->wait_cont_idx = ~0;
3817 clib_spinlock_unlock (&vcm->sessions_lockp);
3820 return (rv != VPPCOM_OK) ? rv : num_ev;
3824 vppcom_session_attr (uint32_t session_index, uint32_t op,
3825 void *buffer, uint32_t * buflen)
3829 u32 *flags = buffer;
3830 vppcom_endpt_t *ep = buffer;
3832 VCL_LOCK_AND_GET_SESSION (session_index, &session);
3835 case VPPCOM_ATTR_GET_NREAD:
3836 rv = vppcom_session_read_ready (session, session_index);
3837 if (VPPCOM_DEBUG > 2)
3838 clib_warning ("[%d] VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
3842 case VPPCOM_ATTR_GET_NWRITE:
3843 rv = vppcom_session_write_ready (session, session_index);
3844 if (VPPCOM_DEBUG > 2)
3845 clib_warning ("[%d] VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
3846 getpid (), session_index, rv);
3849 case VPPCOM_ATTR_GET_FLAGS:
3850 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3852 *flags = O_RDWR | ((session->is_nonblocking) ? O_NONBLOCK : 0);
3853 *buflen = sizeof (*flags);
3854 if (VPPCOM_DEBUG > 2)
3855 clib_warning ("[%d] VPPCOM_ATTR_GET_FLAGS: sid %u, "
3856 "flags = 0x%08x, is_nonblocking = %u", getpid (),
3857 session_index, *flags, session->is_nonblocking);
3863 case VPPCOM_ATTR_SET_FLAGS:
3864 if (buffer && buflen && (*buflen >= sizeof (*flags)))
3866 session->is_nonblocking = (*flags & O_NONBLOCK) ? 1 : 0;
3867 if (VPPCOM_DEBUG > 2)
3868 clib_warning ("[%d] VPPCOM_ATTR_SET_FLAGS: sid %u, "
3869 "flags = 0x%08x, is_nonblocking = %u",
3870 getpid (), session_index, *flags,
3871 session->is_nonblocking);
3877 case VPPCOM_ATTR_GET_PEER_ADDR:
3878 if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip)
3880 ep->vrf = session->vrf;
3881 ep->is_ip4 = session->peer_addr.is_ip4;
3882 ep->port = session->peer_port;
3883 if (session->peer_addr.is_ip4)
3884 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3885 sizeof (ip4_address_t));
3887 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3888 sizeof (ip6_address_t));
3889 *buflen = sizeof (*ep);
3890 if (VPPCOM_DEBUG > 1)
3891 clib_warning ("[%d] VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = "
3892 "%u, addr = %U, port %u", getpid (),
3893 session_index, ep->is_ip4, format_ip46_address,
3894 &session->peer_addr.ip46, ep->is_ip4,
3895 clib_net_to_host_u16 (ep->port));
3901 case VPPCOM_ATTR_GET_LCL_ADDR:
3902 if (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip)
3904 ep->vrf = session->vrf;
3905 ep->is_ip4 = session->lcl_addr.is_ip4;
3906 ep->port = session->lcl_port;
3907 if (session->lcl_addr.is_ip4)
3908 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip4,
3909 sizeof (ip4_address_t));
3911 clib_memcpy (ep->ip, &session->lcl_addr.ip46.ip6,
3912 sizeof (ip6_address_t));
3913 *buflen = sizeof (*ep);
3914 if (VPPCOM_DEBUG > 1)
3915 clib_warning ("[%d] VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = "
3916 "%u, addr = %U port %d", getpid (),
3917 session_index, ep->is_ip4, format_ip46_address,
3918 &session->lcl_addr.ip46, ep->is_ip4,
3919 clib_net_to_host_u16 (ep->port));
3925 case VPPCOM_ATTR_SET_REUSEADDR:
3928 case VPPCOM_ATTR_SET_BROADCAST:
3931 case VPPCOM_ATTR_SET_V6ONLY:
3934 case VPPCOM_ATTR_SET_KEEPALIVE:
3937 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3940 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3949 clib_spinlock_unlock (&vcm->sessions_lockp);
3954 vppcom_session_recvfrom (uint32_t session_index, void *buffer,
3955 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3958 session_t *session = 0;
3962 clib_spinlock_lock (&vcm->sessions_lockp);
3963 rv = vppcom_session_at_index (session_index, &session);
3964 if (PREDICT_FALSE (rv))
3966 clib_spinlock_unlock (&vcm->sessions_lockp);
3967 if (VPPCOM_DEBUG > 0)
3968 clib_warning ("[%d] invalid session, sid (%u) has been closed!",
3969 getpid (), session_index);
3971 clib_spinlock_unlock (&vcm->sessions_lockp);
3974 ep->vrf = session->vrf;
3975 ep->is_ip4 = session->peer_addr.is_ip4;
3976 ep->port = session->peer_port;
3977 if (session->peer_addr.is_ip4)
3978 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip4,
3979 sizeof (ip4_address_t));
3981 clib_memcpy (ep->ip, &session->peer_addr.ip46.ip6,
3982 sizeof (ip6_address_t));
3983 clib_spinlock_unlock (&vcm->sessions_lockp);
3987 rv = vppcom_session_read (session_index, buffer, buflen);
3988 else if (flags & MSG_PEEK)
3989 rv = vppcom_session_peek (session_index, buffer, buflen);
3992 clib_warning ("[%d] Unsupport flags for recvfrom %d", getpid (), flags);
3993 rv = VPPCOM_EAFNOSUPPORT;
4001 vppcom_session_sendto (uint32_t session_index, void *buffer,
4002 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4005 return VPPCOM_EINVAL;
4010 return VPPCOM_EINVAL;
4015 // TBD check the flags and do the right thing
4016 if (VPPCOM_DEBUG > 2)
4017 clib_warning ("[%d] handling flags 0x%u (%d) not implemented yet.",
4018 getpid (), flags, flags);
4021 return (vppcom_session_write (session_index, buffer, buflen));
4025 * fd.io coding-style-patch-verification: ON
4028 * eval: (c-set-style "gnu")