blob: 23ba70aa4f06fbb7f90ed6ccee98c8fc9cf7c39e [file] [log] [blame]
Florin Coras371ca502018-02-21 12:07:41 -08001/*
2 * Copyright (c) 2018 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
16#include <vnet/session/application_interface.h>
17#include <vppinfra/lock.h>
Florin Corasd77eee62018-03-07 08:49:27 -080018#include <vnet/tls/tls.h>
Florin Coras371ca502018-02-21 12:07:41 -080019
20static tls_main_t tls_main;
Florin Corasd77eee62018-03-07 08:49:27 -080021static tls_engine_vft_t *tls_vfts;
Florin Coras371ca502018-02-21 12:07:41 -080022
Florin Coras58d36f02018-03-09 13:05:53 -080023#define TLS_INVALID_HANDLE ~0
24#define TLS_IDX_MASK 0x00FFFFFF
25#define TLS_ENGINE_TYPE_SHIFT 29
26
27void tls_disconnect (u32 ctx_handle, u32 thread_index);
28
29tls_engine_type_t
30tls_get_available_engine (void)
31{
32 int i;
33 for (i = 0; i < vec_len (tls_vfts); i++)
34 {
35 if (tls_vfts[i].ctx_alloc)
36 return i;
37 }
38 return TLS_ENGINE_NONE;
39}
Florin Coras371ca502018-02-21 12:07:41 -080040
Florin Corasd77eee62018-03-07 08:49:27 -080041int
Florin Coras371ca502018-02-21 12:07:41 -080042tls_add_vpp_q_evt (svm_fifo_t * f, u8 evt_type)
43{
44 session_fifo_event_t evt;
45 svm_queue_t *q;
46
47 if (svm_fifo_set_event (f))
48 {
49 evt.fifo = f;
50 evt.event_type = evt_type;
51
52 q = session_manager_get_vpp_event_queue (f->master_thread_index);
53 if (PREDICT_TRUE (q->cursize < q->maxsize))
54 {
55 svm_queue_add (q, (u8 *) & evt, 0 /* do wait for mutex */ );
56 }
57 else
58 {
59 clib_warning ("vpp's evt q full");
60 return -1;
61 }
62 }
63 return 0;
64}
65
66static inline int
67tls_add_app_q_evt (application_t * app, stream_session_t * app_session)
68{
69 session_fifo_event_t evt;
70 svm_queue_t *q;
71
72 if (PREDICT_FALSE (app_session->session_state == SESSION_STATE_CLOSED))
73 {
74 /* Session is closed so app will never clean up. Flush rx fifo */
75 u32 to_dequeue = svm_fifo_max_dequeue (app_session->server_rx_fifo);
76 if (to_dequeue)
77 svm_fifo_dequeue_drop (app_session->server_rx_fifo, to_dequeue);
78 return 0;
79 }
80
81 if (app->cb_fns.builtin_app_rx_callback)
82 return app->cb_fns.builtin_app_rx_callback (app_session);
83
84 if (svm_fifo_set_event (app_session->server_rx_fifo))
85 {
86 evt.fifo = app_session->server_rx_fifo;
87 evt.event_type = FIFO_EVENT_APP_RX;
88 q = app->event_queue;
89
90 if (PREDICT_TRUE (q->cursize < q->maxsize))
91 {
92 svm_queue_add (q, (u8 *) & evt, 0 /* do wait for mutex */ );
93 }
94 else
95 {
96 clib_warning ("app evt q full");
97 return -1;
98 }
99 }
100 return 0;
101}
102
103u32
Florin Coras371ca502018-02-21 12:07:41 -0800104tls_listener_ctx_alloc (void)
105{
106 tls_main_t *tm = &tls_main;
107 tls_ctx_t *ctx;
108
109 pool_get (tm->listener_ctx_pool, ctx);
110 memset (ctx, 0, sizeof (*ctx));
111 return ctx - tm->listener_ctx_pool;
112}
113
114void
Florin Corase3e2f072018-03-04 07:24:30 -0800115tls_listener_ctx_free (tls_ctx_t * ctx)
Florin Coras371ca502018-02-21 12:07:41 -0800116{
Florin Corase3e2f072018-03-04 07:24:30 -0800117 pool_put (tls_main.listener_ctx_pool, ctx);
Florin Coras371ca502018-02-21 12:07:41 -0800118}
119
120tls_ctx_t *
121tls_listener_ctx_get (u32 ctx_index)
122{
123 return pool_elt_at_index (tls_main.listener_ctx_pool, ctx_index);
124}
125
126u32
127tls_listener_ctx_index (tls_ctx_t * ctx)
128{
129 return (ctx - tls_main.listener_ctx_pool);
130}
131
132u32
133tls_ctx_half_open_alloc (void)
134{
135 tls_main_t *tm = &tls_main;
136 u8 will_expand = 0;
137 tls_ctx_t *ctx;
138 u32 ctx_index;
139
140 pool_get_aligned_will_expand (tm->half_open_ctx_pool, will_expand, 0);
141 if (PREDICT_FALSE (will_expand && vlib_num_workers ()))
142 {
143 clib_rwlock_writer_lock (&tm->half_open_rwlock);
144 pool_get (tm->half_open_ctx_pool, ctx);
145 memset (ctx, 0, sizeof (*ctx));
146 ctx_index = ctx - tm->half_open_ctx_pool;
147 clib_rwlock_writer_unlock (&tm->half_open_rwlock);
148 }
149 else
150 {
151 pool_get (tm->half_open_ctx_pool, ctx);
152 memset (ctx, 0, sizeof (*ctx));
153 ctx_index = ctx - tm->half_open_ctx_pool;
154 }
155 return ctx_index;
156}
157
158void
159tls_ctx_half_open_free (u32 ho_index)
160{
161 tls_main_t *tm = &tls_main;
162 clib_rwlock_writer_lock (&tm->half_open_rwlock);
163 pool_put_index (tls_main.half_open_ctx_pool, ho_index);
164 clib_rwlock_writer_unlock (&tm->half_open_rwlock);
165}
166
167tls_ctx_t *
168tls_ctx_half_open_get (u32 ctx_index)
169{
170 tls_main_t *tm = &tls_main;
171 clib_rwlock_reader_lock (&tm->half_open_rwlock);
172 return pool_elt_at_index (tm->half_open_ctx_pool, ctx_index);
173}
174
175void
176tls_ctx_half_open_reader_unlock ()
177{
178 clib_rwlock_reader_unlock (&tls_main.half_open_rwlock);
179}
180
181u32
182tls_ctx_half_open_index (tls_ctx_t * ctx)
183{
184 return (ctx - tls_main.half_open_ctx_pool);
185}
186
Florin Coras58d36f02018-03-09 13:05:53 -0800187void
188tls_notify_app_enqueue (tls_ctx_t * ctx, stream_session_t * app_session)
189{
190 application_t *app;
191 app = application_get_if_valid (app_session->app_index);
Florin Coras5090c572018-03-18 08:22:17 -0700192 if (PREDICT_TRUE (app != 0))
193 tls_add_app_q_evt (app, app_session);
Florin Coras58d36f02018-03-09 13:05:53 -0800194}
195
196int
Florin Coras371ca502018-02-21 12:07:41 -0800197tls_notify_app_accept (tls_ctx_t * ctx)
198{
199 stream_session_t *app_listener, *app_session;
200 segment_manager_t *sm;
201 application_t *app;
202 tls_ctx_t *lctx;
203 int rv;
204
205 app = application_get (ctx->parent_app_index);
206 lctx = tls_listener_ctx_get (ctx->listener_ctx_index);
207 app_listener = listen_session_get_from_handle (lctx->app_session_handle);
208 sm = application_get_listen_segment_manager (app, app_listener);
209
210 app_session = session_alloc (vlib_get_thread_index ());
211 app_session->app_index = ctx->parent_app_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800212 app_session->connection_index = ctx->tls_ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800213 app_session->session_type = app_listener->session_type;
214 app_session->listener_index = app_listener->session_index;
215 if ((rv = session_alloc_fifos (sm, app_session)))
216 {
217 TLS_DBG (1, "failed to allocate fifos");
218 return rv;
219 }
220 ctx->c_s_index = app_session->session_index;
Florin Coras371ca502018-02-21 12:07:41 -0800221 ctx->app_session_handle = session_handle (app_session);
222 return app->cb_fns.session_accept_callback (app_session);
223}
224
Florin Coras58d36f02018-03-09 13:05:53 -0800225int
Florin Coras8f89dd02018-03-05 16:53:07 -0800226tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed)
Florin Coras371ca502018-02-21 12:07:41 -0800227{
228 int (*cb_fn) (u32, u32, stream_session_t *, u8);
229 stream_session_t *app_session;
230 segment_manager_t *sm;
231 application_t *app;
232
233 app = application_get (ctx->parent_app_index);
234 cb_fn = app->cb_fns.session_connected_callback;
235
Florin Coras8f89dd02018-03-05 16:53:07 -0800236 if (is_failed)
237 goto failed;
238
Florin Coras371ca502018-02-21 12:07:41 -0800239 sm = application_get_connect_segment_manager (app);
240 app_session = session_alloc (vlib_get_thread_index ());
241 app_session->app_index = ctx->parent_app_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800242 app_session->connection_index = ctx->tls_ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800243 app_session->session_type =
244 session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, ctx->tcp_is_ip4);
245 if (session_alloc_fifos (sm, app_session))
246 goto failed;
247
248 ctx->app_session_handle = session_handle (app_session);
249 ctx->c_s_index = app_session->session_index;
Florin Coras371ca502018-02-21 12:07:41 -0800250 app_session->session_state = SESSION_STATE_READY;
251 if (cb_fn (ctx->parent_app_index, ctx->parent_app_api_context,
252 app_session, 0 /* not failed */ ))
253 {
254 TLS_DBG (1, "failed to notify app");
Florin Coras58d36f02018-03-09 13:05:53 -0800255 tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ());
Florin Coras371ca502018-02-21 12:07:41 -0800256 }
257
258 return 0;
259
260failed:
Florin Coras58d36f02018-03-09 13:05:53 -0800261 tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ());
Florin Coras371ca502018-02-21 12:07:41 -0800262 return cb_fn (ctx->parent_app_index, ctx->parent_app_api_context, 0,
263 1 /* failed */ );
264}
265
Florin Coras58d36f02018-03-09 13:05:53 -0800266static inline void
267tls_ctx_parse_handle (u32 ctx_handle, u32 * ctx_index, u32 * engine_type)
Florin Corasd77eee62018-03-07 08:49:27 -0800268{
Florin Coras58d36f02018-03-09 13:05:53 -0800269 *ctx_index = ctx_handle & TLS_IDX_MASK;
270 *engine_type = ctx_handle >> TLS_ENGINE_TYPE_SHIFT;
271}
272
273static inline tls_engine_type_t
274tls_get_engine_type (tls_engine_type_t preferred)
275{
276 if (!tls_vfts[preferred].ctx_alloc)
277 return tls_get_available_engine ();
278 return preferred;
279}
280
281static inline u32
282tls_ctx_alloc (tls_engine_type_t engine_type)
283{
284 u32 ctx_index;
285 ctx_index = tls_vfts[engine_type].ctx_alloc ();
286 return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800287}
288
289static inline void
290tls_ctx_free (tls_ctx_t * ctx)
291{
292 vec_free (ctx->srv_hostname);
Florin Coras58d36f02018-03-09 13:05:53 -0800293 tls_vfts[ctx->tls_ctx_engine].ctx_free (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800294}
295
296static inline tls_ctx_t *
Florin Coras58d36f02018-03-09 13:05:53 -0800297tls_ctx_get (u32 ctx_handle)
Florin Corasd77eee62018-03-07 08:49:27 -0800298{
Florin Coras58d36f02018-03-09 13:05:53 -0800299 u32 ctx_index, engine_type;
300 tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type);
301 return tls_vfts[engine_type].ctx_get (ctx_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800302}
303
304static inline tls_ctx_t *
Florin Coras58d36f02018-03-09 13:05:53 -0800305tls_ctx_get_w_thread (u32 ctx_handle, u8 thread_index)
Florin Corasd77eee62018-03-07 08:49:27 -0800306{
Florin Coras58d36f02018-03-09 13:05:53 -0800307 u32 ctx_index, engine_type;
308 tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type);
309 return tls_vfts[engine_type].ctx_get_w_thread (ctx_index, thread_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800310}
311
312static inline int
313tls_ctx_init_server (tls_ctx_t * ctx)
314{
Florin Coras58d36f02018-03-09 13:05:53 -0800315 return tls_vfts[ctx->tls_ctx_engine].ctx_init_server (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800316}
317
318static inline int
319tls_ctx_init_client (tls_ctx_t * ctx)
320{
Florin Coras58d36f02018-03-09 13:05:53 -0800321 return tls_vfts[ctx->tls_ctx_engine].ctx_init_client (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800322}
323
324static inline int
Florin Coras58d36f02018-03-09 13:05:53 -0800325tls_ctx_write (tls_ctx_t * ctx, stream_session_t * app_session)
Florin Corasd77eee62018-03-07 08:49:27 -0800326{
Florin Coras58d36f02018-03-09 13:05:53 -0800327 return tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session);
Florin Corasd77eee62018-03-07 08:49:27 -0800328}
329
330static inline int
Florin Coras58d36f02018-03-09 13:05:53 -0800331tls_ctx_read (tls_ctx_t * ctx, stream_session_t * tls_session)
Florin Corasd77eee62018-03-07 08:49:27 -0800332{
Florin Coras58d36f02018-03-09 13:05:53 -0800333 return tls_vfts[ctx->tls_ctx_engine].ctx_read (ctx, tls_session);
Florin Corasd77eee62018-03-07 08:49:27 -0800334}
335
336static inline u8
337tls_ctx_handshake_is_over (tls_ctx_t * ctx)
338{
Florin Coras58d36f02018-03-09 13:05:53 -0800339 return tls_vfts[ctx->tls_ctx_engine].ctx_handshake_is_over (ctx);
Florin Coras371ca502018-02-21 12:07:41 -0800340}
341
342void
343tls_session_reset_callback (stream_session_t * s)
344{
345 clib_warning ("called...");
346}
347
348int
349tls_add_segment_callback (u32 client_index, const ssvm_private_t * fs)
350{
351 /* No-op for builtin */
352 return 0;
353}
354
355int
356tls_del_segment_callback (u32 client_index, const ssvm_private_t * fs)
357{
358 return 0;
359}
360
361void
362tls_session_disconnect_callback (stream_session_t * tls_session)
363{
364 stream_session_t *app_session;
365 tls_ctx_t *ctx;
366 application_t *app;
367
368 ctx = tls_ctx_get (tls_session->opaque);
Florin Corasd77eee62018-03-07 08:49:27 -0800369 if (!tls_ctx_handshake_is_over (ctx))
Florin Coras371ca502018-02-21 12:07:41 -0800370 {
371 stream_session_disconnect (tls_session);
372 return;
373 }
374 ctx->is_passive_close = 1;
375 app = application_get (ctx->parent_app_index);
376 app_session = session_get_from_handle (ctx->app_session_handle);
377 app->cb_fns.session_disconnect_callback (app_session);
378}
379
380int
381tls_session_accept_callback (stream_session_t * tls_session)
382{
383 stream_session_t *tls_listener;
384 tls_ctx_t *lctx, *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800385 u32 ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800386
387 tls_listener = listen_session_get (tls_session->session_type,
388 tls_session->listener_index);
389 lctx = tls_listener_ctx_get (tls_listener->opaque);
Florin Coras58d36f02018-03-09 13:05:53 -0800390
391 ctx_handle = tls_ctx_alloc (lctx->tls_ctx_engine);
392 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800393 memcpy (ctx, lctx, sizeof (*lctx));
394 ctx->c_thread_index = vlib_get_thread_index ();
Florin Coras58d36f02018-03-09 13:05:53 -0800395 ctx->tls_ctx_handle = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800396 tls_session->session_state = SESSION_STATE_READY;
Florin Coras58d36f02018-03-09 13:05:53 -0800397 tls_session->opaque = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800398 ctx->tls_session_handle = session_handle (tls_session);
399 ctx->listener_ctx_index = tls_listener->opaque;
400
Florin Coras58d36f02018-03-09 13:05:53 -0800401 TLS_DBG (1, "Accept on listener %u new connection [%u]%x",
402 tls_listener->opaque, vlib_get_thread_index (), ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800403
404 return tls_ctx_init_server (ctx);
405}
406
407int
408tls_app_tx_callback (stream_session_t * app_session)
409{
Florin Coras371ca502018-02-21 12:07:41 -0800410 tls_ctx_t *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800411 if (PREDICT_FALSE (app_session->session_state == SESSION_STATE_CLOSED))
Florin Coras371ca502018-02-21 12:07:41 -0800412 return 0;
Florin Coras58d36f02018-03-09 13:05:53 -0800413 ctx = tls_ctx_get (app_session->connection_index);
414 tls_ctx_write (ctx, app_session);
Florin Coras371ca502018-02-21 12:07:41 -0800415 return 0;
416}
417
418int
419tls_app_rx_callback (stream_session_t * tls_session)
420{
Florin Coras371ca502018-02-21 12:07:41 -0800421 tls_ctx_t *ctx;
Florin Coras371ca502018-02-21 12:07:41 -0800422
423 ctx = tls_ctx_get (tls_session->opaque);
Florin Coras58d36f02018-03-09 13:05:53 -0800424 tls_ctx_read (ctx, tls_session);
425 return 0;
Florin Coras371ca502018-02-21 12:07:41 -0800426}
427
428int
429tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index,
430 stream_session_t * tls_session, u8 is_fail)
431{
432 int (*cb_fn) (u32, u32, stream_session_t *, u8);
433 application_t *app;
434 tls_ctx_t *ho_ctx, *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800435 u32 ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800436
437 ho_ctx = tls_ctx_half_open_get (ho_ctx_index);
438 app = application_get (ho_ctx->parent_app_index);
439 cb_fn = app->cb_fns.session_connected_callback;
440
441 if (is_fail)
Florin Corasdcde9272018-03-02 09:23:42 -0800442 {
443 tls_ctx_half_open_reader_unlock ();
444 tls_ctx_half_open_free (ho_ctx_index);
445 return cb_fn (ho_ctx->parent_app_index, ho_ctx->c_s_index, 0,
446 1 /* failed */ );
447 }
Florin Coras371ca502018-02-21 12:07:41 -0800448
Florin Coras58d36f02018-03-09 13:05:53 -0800449 ctx_handle = tls_ctx_alloc (ho_ctx->tls_ctx_engine);
450 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800451 clib_memcpy (ctx, ho_ctx, sizeof (*ctx));
Florin Coras371ca502018-02-21 12:07:41 -0800452 tls_ctx_half_open_reader_unlock ();
453 tls_ctx_half_open_free (ho_ctx_index);
454
Florin Corasdcde9272018-03-02 09:23:42 -0800455 ctx->c_thread_index = vlib_get_thread_index ();
Florin Coras58d36f02018-03-09 13:05:53 -0800456 ctx->tls_ctx_handle = ctx_handle;
Florin Corasdcde9272018-03-02 09:23:42 -0800457
Florin Coras58d36f02018-03-09 13:05:53 -0800458 TLS_DBG (1, "TCP connect for %u returned %u. New connection [%u]%x",
Florin Coras371ca502018-02-21 12:07:41 -0800459 ho_ctx_index, is_fail, vlib_get_thread_index (),
Florin Coras58d36f02018-03-09 13:05:53 -0800460 (ctx) ? ctx_handle : ~0);
Florin Coras371ca502018-02-21 12:07:41 -0800461
462 ctx->tls_session_handle = session_handle (tls_session);
Florin Coras58d36f02018-03-09 13:05:53 -0800463 tls_session->opaque = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800464 tls_session->session_state = SESSION_STATE_READY;
465
466 return tls_ctx_init_client (ctx);
Florin Coras371ca502018-02-21 12:07:41 -0800467}
468
469/* *INDENT-OFF* */
470static session_cb_vft_t tls_app_cb_vft = {
471 .session_accept_callback = tls_session_accept_callback,
472 .session_disconnect_callback = tls_session_disconnect_callback,
473 .session_connected_callback = tls_session_connected_callback,
474 .session_reset_callback = tls_session_reset_callback,
475 .add_segment_callback = tls_add_segment_callback,
476 .del_segment_callback = tls_del_segment_callback,
477 .builtin_app_rx_callback = tls_app_rx_callback,
478 .builtin_app_tx_callback = tls_app_tx_callback,
479};
480/* *INDENT-ON* */
481
482int
483tls_connect (transport_endpoint_t * tep)
484{
485 session_endpoint_extended_t *sep;
Florin Coras58d36f02018-03-09 13:05:53 -0800486 tls_engine_type_t engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800487 session_endpoint_t tls_sep;
488 tls_main_t *tm = &tls_main;
489 application_t *app;
490 tls_ctx_t *ctx;
491 u32 ctx_index;
492 int rv;
493
494 sep = (session_endpoint_extended_t *) tep;
Florin Coras58d36f02018-03-09 13:05:53 -0800495 app = application_get (sep->app_index);
496 engine_type = tls_get_engine_type (app->tls_engine);
497 if (engine_type == TLS_ENGINE_NONE)
498 {
499 clib_warning ("No tls engine_type available");
500 return -1;
501 }
Florin Coras371ca502018-02-21 12:07:41 -0800502
503 ctx_index = tls_ctx_half_open_alloc ();
504 ctx = tls_ctx_half_open_get (ctx_index);
505 ctx->parent_app_index = sep->app_index;
506 ctx->parent_app_api_context = sep->opaque;
507 ctx->tcp_is_ip4 = sep->is_ip4;
Florin Coras8f89dd02018-03-05 16:53:07 -0800508 if (sep->hostname)
509 {
510 ctx->srv_hostname = format (0, "%v", sep->hostname);
511 vec_terminate_c_string (ctx->srv_hostname);
512 }
Florin Coras371ca502018-02-21 12:07:41 -0800513 tls_ctx_half_open_reader_unlock ();
514
Florin Coras371ca502018-02-21 12:07:41 -0800515 application_alloc_connects_segment_manager (app);
Florin Coras58d36f02018-03-09 13:05:53 -0800516 ctx->tls_ctx_engine = engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800517
518 clib_memcpy (&tls_sep, sep, sizeof (tls_sep));
519 tls_sep.transport_proto = TRANSPORT_PROTO_TCP;
520 if ((rv = application_connect (tm->app_index, ctx_index, &tls_sep)))
521 return rv;
522
Florin Coras58d36f02018-03-09 13:05:53 -0800523 TLS_DBG (1, "New connect request %u engine %d", ctx_index, engine_type);
Florin Coras371ca502018-02-21 12:07:41 -0800524 return 0;
525}
526
527void
Florin Coras58d36f02018-03-09 13:05:53 -0800528tls_disconnect (u32 ctx_handle, u32 thread_index)
Florin Coras371ca502018-02-21 12:07:41 -0800529{
530 stream_session_t *tls_session, *app_session;
531 tls_ctx_t *ctx;
532
Florin Coras58d36f02018-03-09 13:05:53 -0800533 TLS_DBG (1, "Disconnecting %x", ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800534
Florin Coras58d36f02018-03-09 13:05:53 -0800535 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800536 tls_session = session_get_from_handle (ctx->tls_session_handle);
537 stream_session_disconnect (tls_session);
538
539 app_session = session_get_from_handle_if_valid (ctx->app_session_handle);
540 if (app_session)
541 {
542 segment_manager_dealloc_fifos (app_session->svm_segment_index,
543 app_session->server_rx_fifo,
544 app_session->server_tx_fifo);
545 session_free (app_session);
546 }
547 tls_ctx_free (ctx);
548}
549
550u32
551tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep)
552{
553 tls_main_t *tm = &tls_main;
Florin Coras58d36f02018-03-09 13:05:53 -0800554 application_t *tls_app, *app;
Florin Coras371ca502018-02-21 12:07:41 -0800555 session_handle_t tls_handle;
556 session_endpoint_extended_t *sep;
557 stream_session_t *tls_listener;
558 tls_ctx_t *lctx;
559 u32 lctx_index;
560 session_type_t st;
561 stream_session_t *app_listener;
Florin Coras58d36f02018-03-09 13:05:53 -0800562 tls_engine_type_t engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800563
564 sep = (session_endpoint_extended_t *) tep;
Florin Coras58d36f02018-03-09 13:05:53 -0800565 app = application_get (sep->app_index);
566 engine_type = tls_get_engine_type (app->tls_engine);
567 if (engine_type == TLS_ENGINE_NONE)
568 {
569 clib_warning ("No tls engine_type available");
570 return -1;
571 }
572
Florin Coras371ca502018-02-21 12:07:41 -0800573 lctx_index = tls_listener_ctx_alloc ();
Florin Coras371ca502018-02-21 12:07:41 -0800574
575 tls_app = application_get (tm->app_index);
576 sep->transport_proto = TRANSPORT_PROTO_TCP;
577 if (application_start_listen (tls_app, (session_endpoint_t *) sep,
578 &tls_handle))
579 return ~0;
580
581 tls_listener = listen_session_get_from_handle (tls_handle);
582 tls_listener->opaque = lctx_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800583
584 st = session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, sep->is_ip4);
585 app_listener = listen_session_get (st, app_listener_index);
586
587 lctx = tls_listener_ctx_get (lctx_index);
Florin Coras371ca502018-02-21 12:07:41 -0800588 lctx->parent_app_index = sep->app_index;
589 lctx->tls_session_handle = tls_handle;
590 lctx->app_session_handle = listen_session_get_handle (app_listener);
591 lctx->tcp_is_ip4 = sep->is_ip4;
Florin Coras58d36f02018-03-09 13:05:53 -0800592 lctx->tls_ctx_engine = engine_type;
593
594 TLS_DBG (1, "Started listening %d, engine type %d", lctx_index,
595 engine_type);
Florin Coras371ca502018-02-21 12:07:41 -0800596 return lctx_index;
597}
598
599u32
Florin Corase3e2f072018-03-04 07:24:30 -0800600tls_stop_listen (u32 lctx_index)
Florin Coras371ca502018-02-21 12:07:41 -0800601{
Florin Corase3e2f072018-03-04 07:24:30 -0800602 tls_main_t *tm = &tls_main;
603 application_t *tls_app;
604 tls_ctx_t *lctx;
605 lctx = tls_listener_ctx_get (lctx_index);
606 tls_app = application_get (tm->app_index);
607 application_stop_listen (tls_app, lctx->tls_session_handle);
608 tls_listener_ctx_free (lctx);
Florin Coras371ca502018-02-21 12:07:41 -0800609 return 0;
610}
611
612transport_connection_t *
Florin Corase3e2f072018-03-04 07:24:30 -0800613tls_connection_get (u32 ctx_index, u32 thread_index)
614{
615 tls_ctx_t *ctx;
616 ctx = tls_ctx_get_w_thread (ctx_index, thread_index);
617 return &ctx->connection;
618}
619
620transport_connection_t *
Florin Coras371ca502018-02-21 12:07:41 -0800621tls_listener_get (u32 listener_index)
622{
623 tls_ctx_t *ctx;
624 ctx = tls_listener_ctx_get (listener_index);
625 return &ctx->connection;
626}
627
628u8 *
629format_tls_ctx (u8 * s, va_list * args)
630{
631 tls_ctx_t *ctx = va_arg (*args, tls_ctx_t *);
632 u32 thread_index = va_arg (*args, u32);
633 u32 child_si, child_ti;
634
635 session_parse_handle (ctx->tls_session_handle, &child_si, &child_ti);
636 if (thread_index != child_ti)
637 clib_warning ("app and tls sessions are on different threads!");
638
Florin Corase3e2f072018-03-04 07:24:30 -0800639 s = format (s, "[#%d][TLS] app %u child %u", child_ti,
640 ctx->parent_app_index, child_si);
Florin Coras371ca502018-02-21 12:07:41 -0800641 return s;
642}
643
644u8 *
645format_tls_connection (u8 * s, va_list * args)
646{
647 u32 ctx_index = va_arg (*args, u32);
648 u32 thread_index = va_arg (*args, u32);
649 u32 verbose = va_arg (*args, u32);
650 tls_ctx_t *ctx;
651
652 ctx = tls_ctx_get_w_thread (ctx_index, thread_index);
653 if (!ctx)
654 return s;
655
656 s = format (s, "%-50U", format_tls_ctx, ctx, thread_index);
657 if (verbose)
658 {
659 s = format (s, "%-15s", "state");
660 if (verbose > 1)
661 s = format (s, "\n");
662 }
663 return s;
664}
665
666u8 *
667format_tls_listener (u8 * s, va_list * args)
668{
669 u32 tc_index = va_arg (*args, u32);
670 tls_ctx_t *ctx = tls_listener_ctx_get (tc_index);
671 u32 listener_index, type;
672
673 listen_session_parse_handle (ctx->tls_session_handle, &type,
674 &listener_index);
675 return format (s, "[TLS] listener app %u child %u", ctx->parent_app_index,
676 listener_index);
677}
678
679u8 *
680format_tls_half_open (u8 * s, va_list * args)
681{
682 u32 tc_index = va_arg (*args, u32);
683 tls_ctx_t *ctx = tls_ctx_half_open_get (tc_index);
684 s = format (s, "[TLS] half-open app %u", ctx->parent_app_index);
685 tls_ctx_half_open_reader_unlock ();
686 return s;
687}
688
689/* *INDENT-OFF* */
690const static transport_proto_vft_t tls_proto = {
691 .open = tls_connect,
692 .close = tls_disconnect,
693 .bind = tls_start_listen,
Florin Corase3e2f072018-03-04 07:24:30 -0800694 .get_connection = tls_connection_get,
Florin Coras371ca502018-02-21 12:07:41 -0800695 .get_listener = tls_listener_get,
696 .unbind = tls_stop_listen,
697 .tx_type = TRANSPORT_TX_INTERNAL,
698 .service_type = TRANSPORT_SERVICE_APP,
699 .format_connection = format_tls_connection,
700 .format_half_open = format_tls_half_open,
701 .format_listener = format_tls_listener,
702};
703/* *INDENT-ON* */
704
Florin Corasd77eee62018-03-07 08:49:27 -0800705void
706tls_register_engine (const tls_engine_vft_t * vft, tls_engine_type_t type)
Florin Coras371ca502018-02-21 12:07:41 -0800707{
Florin Corasd77eee62018-03-07 08:49:27 -0800708 vec_validate (tls_vfts, type);
709 tls_vfts[type] = *vft;
Florin Coras371ca502018-02-21 12:07:41 -0800710}
711
712clib_error_t *
713tls_init (vlib_main_t * vm)
714{
Florin Coras58d36f02018-03-09 13:05:53 -0800715 vlib_thread_main_t *vtm = vlib_get_thread_main ();
Florin Coras371ca502018-02-21 12:07:41 -0800716 vnet_app_attach_args_t _a, *a = &_a;
717 u64 options[APP_OPTIONS_N_OPTIONS];
718 u32 segment_size = 512 << 20;
719 tls_main_t *tm = &tls_main;
Florin Corasd77eee62018-03-07 08:49:27 -0800720 u32 fifo_size = 64 << 10;
Florin Coras58d36f02018-03-09 13:05:53 -0800721 u32 num_threads;
722
723 num_threads = 1 /* main thread */ + vtm->n_threads;
Florin Coras371ca502018-02-21 12:07:41 -0800724
725 memset (a, 0, sizeof (*a));
726 memset (options, 0, sizeof (options));
727
728 a->session_cb_vft = &tls_app_cb_vft;
Florin Coras0bee9ce2018-03-22 21:24:31 -0700729 a->api_client_index = APP_INVALID_INDEX;
Florin Coras371ca502018-02-21 12:07:41 -0800730 a->options = options;
Florin Coras0bee9ce2018-03-22 21:24:31 -0700731 a->name = format (0, "tls");
Florin Coras371ca502018-02-21 12:07:41 -0800732 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
733 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
734 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
735 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
736 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
737
738 if (vnet_application_attach (a))
739 {
740 clib_warning ("failed to attach tls app");
741 return clib_error_return (0, "failed to attach tls app");
742 }
743
Florin Corasd77eee62018-03-07 08:49:27 -0800744 if (!tm->ca_cert_path)
745 tm->ca_cert_path = TLS_CA_CERT_PATH;
746
Florin Coras371ca502018-02-21 12:07:41 -0800747 tm->app_index = a->app_index;
Florin Coras371ca502018-02-21 12:07:41 -0800748 clib_rwlock_init (&tm->half_open_rwlock);
749
Florin Coras58d36f02018-03-09 13:05:53 -0800750 vec_validate (tm->rx_bufs, num_threads - 1);
751 vec_validate (tm->tx_bufs, num_threads - 1);
752
Florin Coras371ca502018-02-21 12:07:41 -0800753 transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto,
754 FIB_PROTOCOL_IP4, ~0);
755 transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto,
756 FIB_PROTOCOL_IP6, ~0);
Florin Coras0bee9ce2018-03-22 21:24:31 -0700757 vec_free (a->name);
Florin Coras371ca502018-02-21 12:07:41 -0800758 return 0;
759}
760
761VLIB_INIT_FUNCTION (tls_init);
762
Florin Coras8f89dd02018-03-05 16:53:07 -0800763static clib_error_t *
764tls_config_fn (vlib_main_t * vm, unformat_input_t * input)
765{
766 tls_main_t *tm = &tls_main;
767 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
768 {
769 if (unformat (input, "use-test-cert-in-ca"))
770 tm->use_test_cert_in_ca = 1;
771 else if (unformat (input, "ca-cert-path %s", &tm->ca_cert_path))
772 ;
773 else
774 return clib_error_return (0, "unknown input `%U'",
775 format_unformat_error, input);
776 }
777 return 0;
778}
779
780VLIB_EARLY_CONFIG_FUNCTION (tls_config_fn, "tls");
Florin Corasd77eee62018-03-07 08:49:27 -0800781
782tls_main_t *
783vnet_tls_get_main (void)
784{
785 return &tls_main;
786}
787
Florin Coras371ca502018-02-21 12:07:41 -0800788/*
789 * fd.io coding-style-patch-verification: ON
790 *
791 * Local Variables:
792 * eval: (c-set-style "gnu")
793 * End:
794 */