summaryrefslogtreecommitdiffstats
path: root/src/vnet/session/session.api
blob: 3dc0cc8d3606ba9c4fcba05b13316ec45dac6f04 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
/*
 * Copyright (c) 2015-2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

option version = "1.4.0";

/** \brief client->vpp, attach application to session layer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param initial_segment_size - size of the initial shm segment to be 
    							  allocated
    @param options - segment size, fifo sizes, etc.
    @param namespace_id_len - length of the namespace id c-string
    @param namespace_id - 0 terminted c-string
*/
 define application_attach {
    u32 client_index;
    u32 context;
    u32 initial_segment_size;
    u64 options[16];
    u8 namespace_id_len;
    u8 namespace_id [64];
 };
 
 /** \brief Application attach reply
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param app_event_queue_address - vpp event queue address or 0 if this 
                                 	 connection shouldn't send events
    @param n_fds - number of fds exchanged
    @param fd_flags - set of flags that indicate which fds are to be expected
    				  over the socket (set only if socket transport available) 
    @param segment_size - size of first shm segment
    @param segment_name_length - length of segment name 
    @param segment_name - name of segment client needs to attach to
    @param app_index - index of the newly created app
*/
define application_attach_reply {
    u32 context;
    i32 retval;
    u64 app_event_queue_address;
    u8 n_fds;
    u8 fd_flags;
    u32 segment_size;
    u8 segment_name_length;
    u8 segment_name[128];
    u32 app_index;
};

/** \brief Application add TLS certificate
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param cert_len - certificate length
    @param cert - certificate as a string
*/
autoreply define application_tls_cert_add {
    u32 client_index;
    u32 context;
    u32 app_index;
    u16 cert_len;
    u8 cert[cert_len];
};

/** \brief Application add TLS key
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param key_len - certificate length
    @param key - PEM encoded key as a string
*/
autoreply define application_tls_key_add {
    u32 client_index;
    u32 context;
    u32 app_index;
    u16 key_len;
    u8 key[key_len];
};

 /** \brief client->vpp, attach application to session layer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
autoreply define application_detach {
    u32 client_index;
    u32 context;
 };
 
/** \brief vpp->client, please map an additional shared memory segment
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
   	@param fd_flags - set of flags that indicate which, if any, fds are 
   					  to be expected over the socket. This is set only if 
   					  socket transport available
    @param segment_size - size of the segment to be mapped
    @param segment_name - name of the segment to be mapped
    @param segment_handle - unique identifier for segment
*/
autoreply define map_another_segment {
    u32 client_index;
    u32 context;
    u8 fd_flags;
    u32 segment_size;
    u8 segment_name[128];
    u64 segment_handle;
};

/** \brief vpp->client unmap shared memory segment
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param segment_name - segment name
    @param segment_handle - handle of the segment to be unmapped 
*/
autoreply define unmap_segment {
    u32 client_index;
    u32 context;
    u64 segment_handle;
};

 /** \brief Bind to a given URI
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param accept_cookie - sender accept cookie, to identify this bind flavor
    @param uri - a URI, e.g. "tcp://0.0.0.0/0/80" [ipv4]
                 "tcp://::/0/80" [ipv6] etc.
    @param options - socket options, fifo sizes, etc.
*/
define bind_uri {
  u32 client_index;
  u32 context;
  u32 accept_cookie;
  u8 uri[128];
};
/** *** Will be DEPRECATED. Use message queue instead. *** */
define bind_uri_reply {
  u32 context;
  u64 handle;
  i32 retval;
  u64 rx_fifo;
  u64 tx_fifo;
  u8 lcl_is_ip4;
  u8 lcl_ip[16];
  u16 lcl_port;
  u64 vpp_evt_q;
};

/** \brief Unbind a given URI
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param uri - a URI, e.g. "tcp://0.0.0.0/0/80" [ipv4]
                 "tcp://::/0/80" [ipv6], etc.
    @param options - socket options, fifo sizes, etc.
*/
autoreply define unbind_uri {
  u32 client_index;
  u32 context;
  u8 uri[128];
};

/** \brief Connect to a given URI
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param client_queue_address - binary API client queue address. Used by 
    							  local server when connect was redirected.
    @param options - socket options, fifo sizes, etc. passed by vpp to the
    				 server when redirecting connects 
    @param uri - a URI, e.g. "tcp4://0.0.0.0/0/80"
                 "tcp6://::/0/80" [ipv6], etc.
*/
autoreply define connect_uri {
  u32 client_index;
  u32 context;
  u64 client_queue_address;
  u64 options[16];
  u8 uri[128];
};

/** \brief vpp->client, accept this session
	*** Will be DEPRECATED. Use message queue instead. ***
    @param context - sender context, to match reply w/ request
    @param listener_handle - tells client which listener this pertains to
    @param handle - unique session identifier
    @param rx_fifo_address - rx (vpp -> vpp-client) fifo address 
    @param tx_fifo_address - tx (vpp-client -> vpp) fifo address 
    @param vpp_event_queue_address - vpp's event queue address or client's
    									event queue for cut through
    @param server_event_queue_address - server's event queue address for
    									   cut through sessions
    @param port - remote port
    @param is_ip4 - 1 if the ip is ip4
    @param ip - remote ip
*/
define accept_session {
  u32 client_index;
  u32 context;
  u64 listener_handle;
  u64 handle; 
  u64 server_rx_fifo;
  u64 server_tx_fifo;
  u64 vpp_event_queue_address;
  u64 server_event_queue_address;
  u16 port;
  u8 is_ip4;
  u8 ip[16];
};

/** \brief client->vpp, reply to an accept message
	*** Will be DEPRECATED. Use message queue instead. ***
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param session_index - session index from accept_session / connect_reply
    @param session_thread_index - thread index from accept_session /
                                  connect_reply
*/
define accept_session_reply {
  u32 context;
  i32 retval;
  u64 handle;
};

/** \brief bidirectional disconnect API
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param handle - session handle obtained from accept/connect
*/
define disconnect_session {
  u32 client_index;
  u32 context;
  u64 handle;
};

/** \brief bidirectional disconnect reply API
	*** Will be DEPRECATED. Use message queue instead. ***
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param handle - session handle
*/
define disconnect_session_reply {
  u32 context;
  i32 retval;
  u64 handle;
};

/** \brief vpp->client reset session API
	*** Will be DEPRECATED. Use message queue instead. ***
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param handle - session handle obtained via accept/connects
*/
define reset_session {
  u32 client_index;
  u32 context;
  u64 handle;
};

/** \brief client->vpp reset session reply
	*** Will be DEPRECATED. Use message queue instead. ***
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param handle - session handle obtained via accept/connect
*/
define reset_session_reply {
  u32 context;
  i32 retval;
  u64 handle;
};

/** \brief Bind to an ip:port pair for a given transport protocol
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param wrk_index - index of worker requesting the bind
    @param vrf - bind namespace
    @param is_ip4 - flag that is 1 if ip address family is IPv4
    @param ip - ip address
    @param port - port 
    @param proto - protocol 0 - TCP 1 - UDP
    @param options - socket options, fifo sizes, etc.
*/
define bind_sock {
  u32 client_index;
  u32 context;
  u32 wrk_index;
  u32 vrf;
  u8 is_ip4;
  u8 ip[16];
  u16 port;
  u8 proto;
  u64 options[16];
};

/** \brief Unbind 
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param wrk_index - index of worker requesting the bind
    @param handle - bind handle obtained from bind reply
*/
autoreply define unbind_sock {
  u32 client_index;
  u32 context;
  u32 wrk_index;
  u64 handle;
};

/** \brief Connect to a remote peer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param wrk_index - worker that requests the connect
    @param client_queue_address - client's API queue address. Non-zero when 
                                  used to perform redirects
    @param options - socket options, fifo sizes, etc. when doing redirects
    @param vrf - connection namespace
    @param is_ip4 - flag that is 1 if ip address family is IPv4
    @param ip - ip address
    @param port - port 
    @param proto - protocol 0 - TCP 1 - UDP
    @param hostname-len - length of hostname
    @param hostname - destination's hostname. If present, used by protocols
					  like tls.
*/
autoreply define connect_sock {
  u32 client_index;
  u32 context;
  u32 wrk_index;
  u64 client_queue_address;
  u64 options[16];
  u32 vrf;
  u8 is_ip4;
  u8 ip[16];
  u16 port;
  u8 proto;
  u8 hostname_len;
  u8 hostname[hostname_len];
};

/** \brief Bind reply
	*** Will be DEPRECATED. Use message queue instead. ***
    @param context - sender context, to match reply w/ request
    @param handle - bind handle
    @param retval - return code for the request
    @param lcl_is_ip4 - local ip address type
    @param lcl_ip6 - local ip address
    @param lcl_port - local port
    @param rx_fifo - rx fifo address if allocated (connectionless)
    @param tx_fifo - tx fifo address if allocated (connectionless) 
    @param vpp_evt_q - vpp event queue address (connectionless)
    @param segment_name_length - length of segment name 
    @param segment_name - name of segment client needs to attach to
*/
define bind_sock_reply {
  u32 context;
  u64 handle;
  i32 retval;
  u8 lcl_is_ip4;
  u8 lcl_ip[16];
  u16 lcl_port;
  u64 rx_fifo;
  u64 tx_fifo;
  u64 vpp_evt_q;
  u32 segment_size;
  u8 segment_name_length;
  u8 segment_name[128];
};

/* Dummy connect message -- needed to satisfy api generators
*
*  NEVER USED, doxygen tags elided on purpose.
*/
define connect_session {
  u32 client_index;
  u32 context;
};

/** \brief vpp/server->client, connect reply -- used for all connect_* messages
	*** Will be DEPRECATED. Use message queue instead. ***
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param handle - connection handle
    @param server_rx_fifo - rx (vpp -> vpp-client) fifo address 
    @param server_tx_fifo - tx (vpp-client -> vpp) fifo address 
    @param vpp_event_queue_address - vpp's event queue address
    @param client_event_queue_address - client's event queue address
    @param segment_size - size of segment to be attached. Only for redirects.
    @param segment_name_length - non-zero if the client needs to attach to 
                                 the fifo segment
    @param segment_name - set if the client needs to attach to the segment
    @param lcl_ip - local ip for connection
    @param is_ip4 - flag to indicate if ip is v4 or v6
    @param lcl_port - local port
*/
define connect_session_reply {
  u32 context;
  i32 retval;
  u64 handle;
  u64 server_rx_fifo;
  u64 server_tx_fifo;
  u64 vpp_event_queue_address;
  u64 client_event_queue_address;
  u32 segment_size;
  u8 segment_name_length;
  u8 segment_name[128];
  u8 lcl_ip[16];
  u8 is_ip4;
  u16 lcl_port;
};

/** \brief ask app to add a new cut-through registration
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param evt_q_address - address of the mq in ssvm segment
    @param peer_evt_q_address - address of peer's mq in ssvm segment
    @param wrk_index - index of worker to receive the registration
    @param n_fds - number of fds exchanged
    @param fd_flags - flag indicating the fds that will be exchanged over
    				  api socket
*/
autoreply define app_cut_through_registration_add
{
  u32 client_index;
  u32 context;
  u64 evt_q_address;
  u64 peer_evt_q_address;
  u32 wrk_index;
  u8 n_fds;
  u8 fd_flags;
};

/** \brief add/del application worker
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param app_index - application index
    @param wrk_index - worker index, if a delete
    @param is_add - set if an add
*/
define app_worker_add_del
{
  u32 client_index;
  u32 context;
  u32 app_index;
  u32 wrk_index;
  u8 is_add;
};

/** \brief Reply for app worker add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param wrk_index - worker index, if add
    @param app_event_queue_address - vpp event queue address of new worker
    @param n_fds - number of fds exchanged
    @param fd_flags - set of flags that indicate which fds are to be expected
    				  over the socket (set only if socket transport available) 
    @param segment_name_length - length of segment name 
    @param segment_name - name of segment client needs to attach to
    @param segment_handle - handle for segment
*/
define app_worker_add_del_reply
{
  u32 context;
  i32 retval;
  u32 wrk_index;
  u64 app_event_queue_address;
  u8 n_fds;
  u8 fd_flags;
  u8 segment_name_length;
  u8 segment_name[128];
  u64 segment_handle;
  u8 is_add;
};

/** \brief enable/disable session layer
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param is_enable - disable session layer if 0, enable otherwise
*/
autoreply define session_enable_disable {
  u32 client_index;
  u32 context;
  u8 is_enable;
};

/** \brief add/del application namespace
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param secret - secret shared between app and vpp 
    @param sw_if_index - local interface that "supports" namespace. Set to
    						~0 if no preference
    @param ip4_fib_id - id of ip4 fib that "supports" the namespace. Ignored 
    						if sw_if_index set.
    @param ip6_fib_id - id of ip6 fib that "supports" the namespace. Ignored 
    						if sw_if_index set.
    @param namespace_id_len - length of namespace id lower
    @param namespace_id - namespace id
*/
define app_namespace_add_del {
  u32 client_index;
  u32 context;
  u64 secret;
  u32 sw_if_index;
  u32 ip4_fib_id;
  u32 ip6_fib_id;
  u8 namespace_id_len;
  u8 namespace_id[64];
};

/** \brief Reply for app namespace add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param appns_index - app namespace index
*/
define app_namespace_add_del_reply
{
  u32 context;
  i32 retval;
  u32 appns_index;
};

/** \brief add/del session rule
    @param client_index - opaque cookie to identify the sender
                          client to vpp direction only
    @param context - sender context, to match reply w/ request
    @param transport_proto - transport protocol (0 - tcp 1 - udp)
    @param is_ip4 - flag to indicate if ip addresses are ip4 or 6
    @param lcl_ip - local ip
    @param lcl_plen - local prefix length
    @param rmt_ip - remote ip
    @param rmt_ple - remote prefix length
    @param lcl_port - local port
    @param rmt_port - remote port
    @param action_index - the only action defined now is forward to 
    						  application with index action_index
    	@param is_add - flag to indicate if add or del
    	@param appns_index - application namespace where rule is to be applied
    						 to
    	@param scope - flag that indicates scope of the rule: global or local.
    				   If 0, default is global, 1 is global 2 is local, 3 is
    				   both
*/
autoreply define session_rule_add_del {
  u32 client_index;
  u32 context;
  u8 transport_proto;
  u8 is_ip4;
  u8 lcl_ip[16];
  u8 lcl_plen;
  u8 rmt_ip[16];
  u8 rmt_plen;
  u16 lcl_port;
  u16 rmt_port;
  u32 action_index;
  u8 is_add;
  u32 appns_index;
  u8 scope;
  u8 tag[64];
};

/** \brief Dump session rules
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
 */
define session_rules_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Session rules details
	@param context - sender context, to match reply w/ request
    @param transport_proto - transport protocol (0 - tcp 1 - udp)
    @param is_ip4 - flag to indicate if ip addresses are ip4 or 6
    @param lcl_ip - local ip
    @param lcl_plen - local prefix length
    @param rmt_ip - remote ip
    @param rmt_ple - remote prefix length
    @param lcl_port - local port
    @param rmt_port - remote port
    @param action_index - the only action defined now is forward to
    						  application with index action_index
    	@param appns_index - application namespace where rule is to be applied
    						 to
    	@param scope - flag that indicates scope of the rule: global or local.
    				   If 0, default is global, 1 is global 2 is local, 3 is
    				   both
  */
define session_rules_details
{
  u32 context;
  u8 transport_proto;
  u8 is_ip4;
  u8 lcl_ip[16];
  u8 lcl_plen;
  u8 rmt_ip[16];
  u8 rmt_plen;
  u16 lcl_port;
  u16 rmt_port;
  u32 action_index;
  u32 appns_index;
  u8 scope;
  u8 tag[64];
};

/*
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */