FD.io VPP  v19.04.1-1-ge4a0f9f
Vector Packet Processing
application_interface.h
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1 /*
2  * Copyright (c) 2016-2019 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 #ifndef __included_uri_h__
16 #define __included_uri_h__
17 
18 #include <vlibmemory/api.h>
19 #include <svm/message_queue.h>
20 #include <svm/svm_fifo_segment.h>
22 #include <vnet/tls/tls_test.h>
23 
24 typedef struct _stream_session_cb_vft
25 {
26  /** Notify server of new segment */
27  int (*add_segment_callback) (u32 api_client_index, u64 segment_handle);
28 
29  /** Notify server of new segment */
30  int (*del_segment_callback) (u32 api_client_index, u64 segment_handle);
31 
32  /** Notify server of newly accepted session */
33  int (*session_accept_callback) (session_t * new_session);
34 
35  /** Connection request callback */
36  int (*session_connected_callback) (u32 app_wrk_index, u32 opaque,
37  session_t * s, u8 code);
38 
39  /** Notify app that session is closing */
40  void (*session_disconnect_callback) (session_t * s);
41 
42  /** Notify app that session was reset */
43  void (*session_reset_callback) (session_t * s);
44 
45  /** Direct RX callback for built-in application */
46  int (*builtin_app_rx_callback) (session_t * session);
47 
48  /** Direct TX callback for built-in application */
49  int (*builtin_app_tx_callback) (session_t * session);
50 
52 
53 #define foreach_app_init_args \
54  _(u32, api_client_index) \
55  _(u8 *, name) \
56  _(u64 *, options) \
57  _(u8 *, namespace_id) \
58  _(session_cb_vft_t *, session_cb_vft) \
59  _(u32, app_index) \
60 
61 typedef struct _vnet_app_attach_args_t
62 {
63 #define _(_type, _name) _type _name;
65 #undef _
66  ssvm_private_t * segment;
67  svm_msg_q_t *app_evt_q;
68  u64 segment_handle;
70 
71 typedef struct _vnet_app_detach_args_t
72 {
73  u32 app_index;
74  u32 api_client_index;
76 
77 typedef struct _vnet_bind_args_t
78 {
79  union
80  {
81  session_endpoint_cfg_t sep_ext;
83  char *uri;
84  };
85 
86  u32 app_index;
87  u32 wrk_map_index;
88 
89  /*
90  * Results
91  */
92  char *segment_name;
93  u32 segment_name_length;
94  u64 server_event_queue_address;
95  u64 handle;
97 
98 typedef struct _vnet_unlisten_args_t
99 {
100  union
101  {
102  char *uri;
103  u64 handle; /**< Session handle */
104  };
105  u32 app_index; /**< Owning application index */
106  u32 wrk_map_index; /**< App's local pool worker index */
108 
109 typedef struct _vnet_connect_args
110 {
111  union
112  {
113  session_endpoint_cfg_t sep_ext;
114  session_endpoint_t sep;
115  char *uri;
116  };
117  u32 app_index;
118  u32 wrk_map_index;
119  u32 api_context;
120 
123 
124 typedef struct _vnet_disconnect_args_t
125 {
126  session_handle_t handle;
127  u32 app_index;
129 
130 typedef struct _vnet_application_add_tls_cert_args_t
131 {
132  u32 app_index;
133  u8 *cert;
135 
136 typedef struct _vnet_application_add_tls_key_args_t
137 {
138  u32 app_index;
139  u8 *key;
141 
142 typedef enum tls_engine_type_
143 {
149 
150 /* Application attach options */
151 typedef enum
152 {
168 
169 #define foreach_app_options_flags \
170  _(ACCEPT_REDIRECT, "Use FIFO with redirects") \
171  _(ADD_SEGMENT, "Add segment and signal app if needed") \
172  _(IS_BUILTIN, "Application is builtin") \
173  _(IS_TRANSPORT_APP, "Application is a transport proto") \
174  _(IS_PROXY, "Application is proxying") \
175  _(USE_GLOBAL_SCOPE, "App can use global session scope") \
176  _(USE_LOCAL_SCOPE, "App can use local session scope") \
177  _(EVT_MQ_USE_EVENTFD, "Use eventfds for signaling") \
178 
179 typedef enum _app_options
180 {
181 #define _(sym, str) APP_OPTIONS_##sym,
183 #undef _
184 } app_options_t;
185 
186 typedef enum _app_options_flags
187 {
188 #define _(sym, str) APP_OPTIONS_FLAGS_##sym = 1 << APP_OPTIONS_##sym,
190 #undef _
192 
193 #define foreach_fd_type \
194  _(VPP_MQ_SEGMENT, "Fd for vpp's event mq segment") \
195  _(MEMFD_SEGMENT, "Fd for memfd segment") \
196  _(MQ_EVENTFD, "Event fd used by message queue") \
197  _(VPP_MQ_EVENTFD, "Event fd used by vpp's message queue") \
198 
199 typedef enum session_fd_type_
200 {
201 #define _(sym, str) SESSION_FD_##sym,
203 #undef _
206 
207 typedef enum session_fd_flag_
208 {
209 #define _(sym, str) SESSION_FD_F_##sym = 1 << SESSION_FD_##sym,
211 #undef _
213 
217 
224 
227 
229 {
230  ip46_address_t rmt_ip; /**< remote ip */
231  ip46_address_t lcl_ip; /**< local ip */
232  u16 rmt_port; /**< remote port (network order) */
233  u16 lcl_port; /**< local port (network order) */
234  u8 is_ip4; /**< set if uses ip4 networking */
236 
237 #define foreach_app_session_field \
238  _(svm_fifo_t, *rx_fifo) /**< rx fifo */ \
239  _(svm_fifo_t, *tx_fifo) /**< tx fifo */ \
240  _(session_type_t, session_type) /**< session type */ \
241  _(volatile u8, session_state) /**< session state */ \
242  _(u32, session_index) /**< index in owning pool */ \
243  _(app_session_transport_t, transport) /**< transport info */ \
244  _(svm_msg_q_t, *vpp_evt_q) /**< vpp event queue */ \
245  _(u8, is_dgram) /**< flag for dgram mode */ \
246 
247 typedef struct
248 {
249 #define _(type, name) type name;
251 #undef _
252 } app_session_t;
253 
254 typedef struct session_bound_msg_
255 {
256  u32 context;
257  u64 handle;
258  i32 retval;
259  u8 lcl_is_ip4;
260  u8 lcl_ip[16];
261  u16 lcl_port;
262  uword rx_fifo;
263  uword tx_fifo;
264  uword vpp_evt_q;
265  u32 segment_size;
266  u8 segment_name_length;
267  u8 segment_name[128];
268 } __clib_packed session_bound_msg_t;
269 
270 typedef struct session_unlisten_reply_msg_
271 {
272  u32 context;
273  u64 handle;
274  i32 retval;
276 
277 typedef struct session_accepted_msg_
278 {
279  u32 context;
280  u64 listener_handle;
281  u64 handle;
282  uword server_rx_fifo;
283  uword server_tx_fifo;
284  u64 segment_handle;
285  uword vpp_event_queue_address;
286  u16 port;
287  u8 is_ip4;
288  u8 ip[16];
289 } __clib_packed session_accepted_msg_t;
290 
291 typedef struct session_accepted_reply_msg_
292 {
293  u32 context;
294  i32 retval;
295  u64 handle;
297 
298 /* Make sure this is not too large, otherwise it won't fit when dequeued in
299  * the session queue node */
300 STATIC_ASSERT (sizeof (session_accepted_reply_msg_t) <= 16, "accept reply");
301 
302 typedef struct session_connected_msg_
303 {
304  u32 context;
305  i32 retval;
306  u64 handle;
307  uword server_rx_fifo;
308  uword server_tx_fifo;
309  u64 segment_handle;
310  uword ct_rx_fifo;
311  uword ct_tx_fifo;
312  u64 ct_segment_handle;
313  uword vpp_event_queue_address;
314  u32 segment_size;
315  u8 segment_name_length;
316  u8 segment_name[64];
317  u8 lcl_ip[16];
318  u8 is_ip4;
319  u16 lcl_port;
320 } __clib_packed session_connected_msg_t;
321 
322 typedef struct session_disconnected_msg_
323 {
324  u32 client_index;
326  u64 handle;
328 
329 typedef struct session_disconnected_reply_msg_
330 {
331  u32 context;
332  i32 retval;
333  u64 handle;
335 
336 typedef struct session_reset_msg_
337 {
338  u32 client_index;
340  u64 handle;
341 } __clib_packed session_reset_msg_t;
342 
343 typedef struct session_reset_reply_msg_
344 {
345  u32 context;
346  i32 retval;
347  u64 handle;
349 
350 typedef struct session_req_worker_update_msg_
351 {
354 
355 /* NOTE: using u16 for wrk indices because message needs to fit in 18B */
356 typedef struct session_worker_update_msg_
357 {
358  u32 client_index;
359  u16 wrk_index;
360  u16 req_wrk_index;
361  u64 handle;
363 
365 {
366  u64 handle;
367  uword rx_fifo;
368  uword tx_fifo;
369  u64 segment_handle;
371 
372 typedef struct app_session_event_
373 {
374  svm_msg_q_msg_t msg;
375  session_event_t *evt;
376 } __clib_packed app_session_evt_t;
377 
378 static inline void
379 app_alloc_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt,
380  u8 evt_type)
381 {
384  SVM_Q_WAIT, &app_evt->msg);
385  svm_msg_q_unlock (mq);
386  app_evt->evt = svm_msg_q_msg_data (mq, &app_evt->msg);
387  clib_memset (app_evt->evt, 0, sizeof (*app_evt->evt));
388  app_evt->evt->event_type = evt_type;
389 }
390 
391 static inline void
392 app_send_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt)
393 {
394  svm_msg_q_add (mq, &app_evt->msg, SVM_Q_WAIT);
395 }
396 
397 /**
398  * Send fifo io event to vpp worker thread
399  *
400  * Because there may be multiple writers to one of vpp's queues, this
401  * protects message allocation and enqueueing.
402  *
403  * @param mq vpp message queue
404  * @param f fifo for which the event is sent
405  * @param evt_type type of event
406  * @param noblock flag to indicate is request is blocking or not
407  * @return 0 if success, negative integer otherwise
408  */
409 static inline int
410 app_send_io_evt_to_vpp (svm_msg_q_t * mq, u32 session_index, u8 evt_type,
411  u8 noblock)
412 {
413  session_event_t *evt;
414  svm_msg_q_msg_t msg;
415 
416  if (noblock)
417  {
418  if (svm_msg_q_try_lock (mq))
419  return -1;
421  {
422  svm_msg_q_unlock (mq);
423  return -2;
424  }
427  {
428  svm_msg_q_unlock (mq);
429  return -2;
430  }
431  evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
432  evt->session_index = session_index;
433  evt->event_type = evt_type;
434  svm_msg_q_add_and_unlock (mq, &msg);
435  return 0;
436  }
437  else
438  {
439  svm_msg_q_lock (mq);
441  svm_msg_q_wait (mq);
443  evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
444  evt->session_index = session_index;
445  evt->event_type = evt_type;
446  if (svm_msg_q_is_full (mq))
447  svm_msg_q_wait (mq);
448  svm_msg_q_add_and_unlock (mq, &msg);
449  return 0;
450  }
451 }
452 
453 always_inline int
455  svm_msg_q_t * vpp_evt_q, u8 * data, u32 len, u8 evt_type,
456  u8 do_evt, u8 noblock)
457 {
458  u32 max_enqueue, actual_write;
460  int rv;
461 
462  max_enqueue = svm_fifo_max_enqueue (f);
463  if (max_enqueue <= sizeof (session_dgram_hdr_t))
464  return 0;
465 
466  max_enqueue -= sizeof (session_dgram_hdr_t);
467  actual_write = clib_min (len, max_enqueue);
468  hdr.data_length = actual_write;
469  hdr.data_offset = 0;
470  clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
471  hdr.is_ip4 = at->is_ip4;
472  hdr.rmt_port = at->rmt_port;
473  clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
474  hdr.lcl_port = at->lcl_port;
475  rv = svm_fifo_enqueue_nowait (f, sizeof (hdr), (u8 *) & hdr);
476  ASSERT (rv == sizeof (hdr));
477 
478  rv = svm_fifo_enqueue_nowait (f, actual_write, data);
479  if (do_evt)
480  {
481  if (rv > 0 && svm_fifo_set_event (f))
482  app_send_io_evt_to_vpp (vpp_evt_q, f->master_session_index, evt_type,
483  noblock);
484  }
485  ASSERT (rv);
486  return rv;
487 }
488 
489 always_inline int
490 app_send_dgram (app_session_t * s, u8 * data, u32 len, u8 noblock)
491 {
492  return app_send_dgram_raw (s->tx_fifo, &s->transport, s->vpp_evt_q, data,
493  len, SESSION_IO_EVT_TX, 1 /* do_evt */ ,
494  noblock);
495 }
496 
497 always_inline int
498 app_send_stream_raw (svm_fifo_t * f, svm_msg_q_t * vpp_evt_q, u8 * data,
499  u32 len, u8 evt_type, u8 do_evt, u8 noblock)
500 {
501  int rv;
502 
503  rv = svm_fifo_enqueue_nowait (f, len, data);
504  if (do_evt)
505  {
506  if (rv > 0 && svm_fifo_set_event (f))
507  app_send_io_evt_to_vpp (vpp_evt_q, f->master_session_index, evt_type,
508  noblock);
509  }
510  return rv;
511 }
512 
513 always_inline int
514 app_send_stream (app_session_t * s, u8 * data, u32 len, u8 noblock)
515 {
516  return app_send_stream_raw (s->tx_fifo, s->vpp_evt_q, data, len,
517  SESSION_IO_EVT_TX, 1 /* do_evt */ , noblock);
518 }
519 
520 always_inline int
521 app_send (app_session_t * s, u8 * data, u32 len, u8 noblock)
522 {
523  if (s->is_dgram)
524  return app_send_dgram (s, data, len, noblock);
525  return app_send_stream (s, data, len, noblock);
526 }
527 
528 always_inline int
529 app_recv_dgram_raw (svm_fifo_t * f, u8 * buf, u32 len,
530  app_session_transport_t * at, u8 clear_evt, u8 peek)
531 {
533  u32 max_deq;
534  int rv;
535 
536  max_deq = svm_fifo_max_dequeue (f);
537  if (max_deq < sizeof (session_dgram_hdr_t))
538  {
539  if (clear_evt)
541  return 0;
542  }
543 
544  if (clear_evt)
546 
547  svm_fifo_peek (f, 0, sizeof (ph), (u8 *) & ph);
548  ASSERT (ph.data_length >= ph.data_offset);
549  if (!ph.data_offset)
550  svm_fifo_peek (f, sizeof (ph), sizeof (*at), (u8 *) at);
551  len = clib_min (len, ph.data_length - ph.data_offset);
552  rv = svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN, len, buf);
553  if (peek)
554  return rv;
555  ph.data_offset += rv;
556  if (ph.data_offset == ph.data_length)
558  else
559  svm_fifo_overwrite_head (f, (u8 *) & ph, sizeof (ph));
560  return rv;
561 }
562 
563 always_inline int
564 app_recv_dgram (app_session_t * s, u8 * buf, u32 len)
565 {
566  return app_recv_dgram_raw (s->rx_fifo, buf, len, &s->transport, 1, 0);
567 }
568 
569 always_inline int
570 app_recv_stream_raw (svm_fifo_t * f, u8 * buf, u32 len, u8 clear_evt, u8 peek)
571 {
572  if (clear_evt)
574 
575  if (peek)
576  return svm_fifo_peek (f, 0, len, buf);
577 
578  return svm_fifo_dequeue_nowait (f, len, buf);
579 }
580 
581 always_inline int
582 app_recv_stream (app_session_t * s, u8 * buf, u32 len)
583 {
584  return app_recv_stream_raw (s->rx_fifo, buf, len, 1, 0);
585 }
586 
587 always_inline int
589 {
590  if (s->is_dgram)
591  return app_recv_dgram (s, data, len);
592  return app_recv_stream (s, data, len);
593 }
594 
595 #endif /* __included_uri_h__ */
596 
597 /*
598  * fd.io coding-style-patch-verification: ON
599  *
600  * Local Variables:
601  * eval: (c-set-style "gnu")
602  * End:
603  */
#define foreach_app_session_field
flag for dgram mode
static int app_recv_stream_raw(svm_fifo_t *f, u8 *buf, u32 len, u8 clear_evt, u8 peek)
struct app_session_event_ app_session_evt_t
static u8 svm_msg_q_msg_is_invalid(svm_msg_q_msg_t *msg)
Check if message is invalid.
void * svm_msg_q_msg_data(svm_msg_q_t *mq, svm_msg_q_msg_t *msg)
Get data for message in queue.
static u8 svm_msg_q_ring_is_full(svm_msg_q_t *mq, u32 ring_index)
#define clib_min(x, y)
Definition: clib.h:295
struct session_accepted_msg_ session_accepted_msg_t
u8 is_ip4
set if uses ip4 networking
a
Definition: bitmap.h:538
struct _vnet_connect_args vnet_connect_args_t
int vnet_listen(vnet_listen_args_t *a)
Definition: application.c:977
struct _vnet_unlisten_args_t vnet_unlisten_args_t
unsigned long u64
Definition: types.h:89
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
struct session_req_worker_update_msg_ session_req_worker_update_msg_t
static int app_send_stream(app_session_t *s, u8 *data, u32 len, u8 noblock)
void svm_fifo_overwrite_head(svm_fifo_t *f, u8 *data, u32 len)
Definition: svm_fifo.c:607
clib_memset(h->entries, 0, sizeof(h->entries[0])*entries)
static u32 svm_fifo_max_enqueue(svm_fifo_t *f)
Definition: svm_fifo.h:147
u8 data[128]
Definition: ipsec.api:248
struct session_disconnected_reply_msg_ session_disconnected_reply_msg_t
struct session_reset_msg_ session_reset_msg_t
struct _vnet_application_add_tls_cert_args_t vnet_app_add_tls_cert_args_t
struct session_worker_update_reply_msg_ session_worker_update_reply_msg_t
unsigned char u8
Definition: types.h:56
struct _vnet_bind_args_t vnet_listen_args_t
int vnet_bind_uri(vnet_listen_args_t *)
static session_handle_t session_handle(session_t *s)
struct _svm_fifo svm_fifo_t
int svm_msg_q_lock_and_alloc_msg_w_ring(svm_msg_q_t *mq, u32 ring_index, u8 noblock, svm_msg_q_msg_t *msg)
Lock message queue and allocate message buffer on ring.
struct session_reset_reply_msg_ session_reset_reply_msg_t
struct session_accepted_reply_msg_ session_accepted_reply_msg_t
static void app_alloc_ctrl_evt_to_vpp(svm_msg_q_t *mq, app_session_evt_t *app_evt, u8 evt_type)
static int app_send(app_session_t *s, u8 *data, u32 len, u8 noblock)
struct _vnet_disconnect_args_t vnet_disconnect_args_t
#define always_inline
Definition: clib.h:98
static u32 svm_fifo_max_dequeue(svm_fifo_t *f)
Definition: svm_fifo.h:129
enum session_fd_type_ session_fd_type_t
static int app_send_io_evt_to_vpp(svm_msg_q_t *mq, u32 session_index, u8 evt_type, u8 noblock)
Send fifo io event to vpp worker thread.
#define foreach_fd_type
int svm_fifo_enqueue_nowait(svm_fifo_t *f, u32 max_bytes, const u8 *copy_from_here)
Definition: svm_fifo.c:530
ip46_address_t lcl_ip
unsigned int u32
Definition: types.h:88
STATIC_ASSERT(sizeof(session_accepted_reply_msg_t)<=16,"accept reply")
static int app_recv_dgram_raw(svm_fifo_t *f, u8 *buf, u32 len, app_session_transport_t *at, u8 clear_evt, u8 peek)
struct _vnet_app_attach_args_t vnet_app_attach_args_t
clib_error_t * vnet_app_add_tls_key(vnet_app_add_tls_key_args_t *a)
Definition: application.c:1342
struct _session_endpoint_cfg session_endpoint_cfg_t
static int app_recv(app_session_t *s, u8 *data, u32 len)
#define foreach_app_init_args
unsigned short u16
Definition: types.h:57
#define PREDICT_FALSE(x)
Definition: clib.h:111
ip46_address_t rmt_ip
remote ip
static void svm_fifo_unset_event(svm_fifo_t *f)
Unsets fifo event flag.
Definition: svm_fifo.h:185
static void svm_msg_q_wait(svm_msg_q_t *mq)
Wait for message queue event.
struct session_connected_msg_ session_connected_msg_t
int vnet_unbind_uri(vnet_unlisten_args_t *a)
static int app_send_dgram_raw(svm_fifo_t *f, app_session_transport_t *at, svm_msg_q_t *vpp_evt_q, u8 *data, u32 len, u8 evt_type, u8 do_evt, u8 noblock)
int vnet_application_attach(vnet_app_attach_args_t *a)
Attach application to vpp.
Definition: application.c:839
u8 len
Definition: ip_types.api:49
enum session_fd_flag_ session_fd_flag_t
static void app_send_ctrl_evt_to_vpp(svm_msg_q_t *mq, app_session_evt_t *app_evt)
static u8 svm_fifo_set_event(svm_fifo_t *f)
Sets fifo event flag.
Definition: svm_fifo.h:172
Unidirectional shared-memory multi-ring message queue.
static void svm_msg_q_unlock(svm_msg_q_t *mq)
Unlock message queue.
#define SESSION_CONN_HDR_LEN
u32 context
Definition: ipsec_gre.api:33
struct _stream_session_cb_vft session_cb_vft_t
struct app_session_transport_ app_session_transport_t
int svm_msg_q_add(svm_msg_q_t *mq, svm_msg_q_msg_t *msg, int nowait)
Producer enqueue one message to queue.
int vnet_unlisten(vnet_unlisten_args_t *a)
Definition: application.c:1065
blocking call - best used in combination with condvars, for eventfds we don&#39;t yield the cpu ...
Definition: queue.h:42
static int app_recv_stream(app_session_t *s, u8 *buf, u32 len)
static int svm_msg_q_try_lock(svm_msg_q_t *mq)
Try locking message queue.
enum _app_options_flags app_options_flags_t
struct session_worker_update_msg_ session_worker_update_msg_t
signed int i32
Definition: types.h:77
clib_error_t * vnet_app_add_tls_cert(vnet_app_add_tls_cert_args_t *a)
Definition: application.c:1330
int vnet_disconnect_session(vnet_disconnect_args_t *a)
Definition: application.c:1094
#define ASSERT(truth)
void svm_msg_q_add_and_unlock(svm_msg_q_t *mq, svm_msg_q_msg_t *msg)
Producer enqueue one message to queue with mutex held.
enum _app_options app_options_t
app_attach_options_index_t
static int app_send_dgram(app_session_t *s, u8 *data, u32 len, u8 noblock)
struct _vnet_application_add_tls_key_args_t vnet_app_add_tls_key_args_t
int vnet_application_detach(vnet_app_detach_args_t *a)
Detach application from vpp.
Definition: application.c:899
ip46_address_t rmt_ip
u16 lcl_port
local port (network order)
struct _vnet_app_detach_args_t vnet_app_detach_args_t
ip46_address_t lcl_ip
local ip
int vnet_connect(vnet_connect_args_t *a)
Definition: application.c:1029
struct session_disconnected_msg_ session_disconnected_msg_t
int svm_fifo_dequeue_drop(svm_fifo_t *f, u32 max_bytes)
Definition: svm_fifo.c:734
struct session_bound_msg_ session_bound_msg_t
int vnet_connect_uri(vnet_connect_args_t *a)
u64 session_handle_t
u64 uword
Definition: types.h:112
static int app_send_stream_raw(svm_fifo_t *f, svm_msg_q_t *vpp_evt_q, u8 *data, u32 len, u8 evt_type, u8 do_evt, u8 noblock)
typedef key
Definition: ipsec.api:244
struct session_unlisten_reply_msg_ session_unlisten_reply_msg_t
struct _session_endpoint session_endpoint_t
#define foreach_app_options_flags
enum tls_engine_type_ tls_engine_type_t
static int svm_msg_q_lock(svm_msg_q_t *mq)
Lock, or block trying, the message queue.
int svm_fifo_peek(svm_fifo_t *f, u32 relative_offset, u32 max_bytes, u8 *copy_here)
Definition: svm_fifo.c:726
static u8 svm_msg_q_is_full(svm_msg_q_t *mq)
Check if message queue is full.
int svm_fifo_dequeue_nowait(svm_fifo_t *f, u32 max_bytes, u8 *copy_here)
Definition: svm_fifo.c:678
struct session_dgram_header_ session_dgram_hdr_t
svm_msg_q_msg_t svm_msg_q_alloc_msg_w_ring(svm_msg_q_t *mq, u32 ring_index)
Allocate message buffer on ring.
static int app_recv_dgram(app_session_t *s, u8 *buf, u32 len)
u16 rmt_port
remote port (network order)