blob: cea449163f86b0a921129d4b15f2a3aca5ca0bfd [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{
Florin Coras371ca502018-02-21 12:07:41 -080044 if (svm_fifo_set_event (f))
Florin Coras3c2fed52018-07-04 04:15:05 -070045 session_send_io_evt_to_thread (f, evt_type);
Florin Coras371ca502018-02-21 12:07:41 -080046 return 0;
47}
48
49static inline int
50tls_add_app_q_evt (application_t * app, stream_session_t * app_session)
51{
Florin Coras3c2fed52018-07-04 04:15:05 -070052 return application_send_event (app, app_session, FIFO_EVENT_APP_RX);
Florin Coras371ca502018-02-21 12:07:41 -080053}
54
55u32
Florin Coras371ca502018-02-21 12:07:41 -080056tls_listener_ctx_alloc (void)
57{
58 tls_main_t *tm = &tls_main;
59 tls_ctx_t *ctx;
60
61 pool_get (tm->listener_ctx_pool, ctx);
62 memset (ctx, 0, sizeof (*ctx));
63 return ctx - tm->listener_ctx_pool;
64}
65
66void
Florin Corase3e2f072018-03-04 07:24:30 -080067tls_listener_ctx_free (tls_ctx_t * ctx)
Florin Coras371ca502018-02-21 12:07:41 -080068{
Florin Corase3e2f072018-03-04 07:24:30 -080069 pool_put (tls_main.listener_ctx_pool, ctx);
Florin Coras371ca502018-02-21 12:07:41 -080070}
71
72tls_ctx_t *
73tls_listener_ctx_get (u32 ctx_index)
74{
75 return pool_elt_at_index (tls_main.listener_ctx_pool, ctx_index);
76}
77
78u32
79tls_listener_ctx_index (tls_ctx_t * ctx)
80{
81 return (ctx - tls_main.listener_ctx_pool);
82}
83
84u32
85tls_ctx_half_open_alloc (void)
86{
87 tls_main_t *tm = &tls_main;
88 u8 will_expand = 0;
89 tls_ctx_t *ctx;
90 u32 ctx_index;
91
92 pool_get_aligned_will_expand (tm->half_open_ctx_pool, will_expand, 0);
93 if (PREDICT_FALSE (will_expand && vlib_num_workers ()))
94 {
95 clib_rwlock_writer_lock (&tm->half_open_rwlock);
96 pool_get (tm->half_open_ctx_pool, ctx);
97 memset (ctx, 0, sizeof (*ctx));
98 ctx_index = ctx - tm->half_open_ctx_pool;
99 clib_rwlock_writer_unlock (&tm->half_open_rwlock);
100 }
101 else
102 {
103 pool_get (tm->half_open_ctx_pool, ctx);
104 memset (ctx, 0, sizeof (*ctx));
105 ctx_index = ctx - tm->half_open_ctx_pool;
106 }
107 return ctx_index;
108}
109
110void
111tls_ctx_half_open_free (u32 ho_index)
112{
113 tls_main_t *tm = &tls_main;
114 clib_rwlock_writer_lock (&tm->half_open_rwlock);
115 pool_put_index (tls_main.half_open_ctx_pool, ho_index);
116 clib_rwlock_writer_unlock (&tm->half_open_rwlock);
117}
118
119tls_ctx_t *
120tls_ctx_half_open_get (u32 ctx_index)
121{
122 tls_main_t *tm = &tls_main;
123 clib_rwlock_reader_lock (&tm->half_open_rwlock);
124 return pool_elt_at_index (tm->half_open_ctx_pool, ctx_index);
125}
126
127void
128tls_ctx_half_open_reader_unlock ()
129{
130 clib_rwlock_reader_unlock (&tls_main.half_open_rwlock);
131}
132
133u32
134tls_ctx_half_open_index (tls_ctx_t * ctx)
135{
136 return (ctx - tls_main.half_open_ctx_pool);
137}
138
Florin Coras58d36f02018-03-09 13:05:53 -0800139void
140tls_notify_app_enqueue (tls_ctx_t * ctx, stream_session_t * app_session)
141{
142 application_t *app;
143 app = application_get_if_valid (app_session->app_index);
Florin Coras5090c572018-03-18 08:22:17 -0700144 if (PREDICT_TRUE (app != 0))
145 tls_add_app_q_evt (app, app_session);
Florin Coras58d36f02018-03-09 13:05:53 -0800146}
147
148int
Florin Coras371ca502018-02-21 12:07:41 -0800149tls_notify_app_accept (tls_ctx_t * ctx)
150{
151 stream_session_t *app_listener, *app_session;
152 segment_manager_t *sm;
153 application_t *app;
154 tls_ctx_t *lctx;
155 int rv;
156
157 app = application_get (ctx->parent_app_index);
158 lctx = tls_listener_ctx_get (ctx->listener_ctx_index);
159 app_listener = listen_session_get_from_handle (lctx->app_session_handle);
160 sm = application_get_listen_segment_manager (app, app_listener);
161
162 app_session = session_alloc (vlib_get_thread_index ());
163 app_session->app_index = ctx->parent_app_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800164 app_session->connection_index = ctx->tls_ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800165 app_session->session_type = app_listener->session_type;
166 app_session->listener_index = app_listener->session_index;
167 if ((rv = session_alloc_fifos (sm, app_session)))
168 {
169 TLS_DBG (1, "failed to allocate fifos");
170 return rv;
171 }
172 ctx->c_s_index = app_session->session_index;
Florin Coras371ca502018-02-21 12:07:41 -0800173 ctx->app_session_handle = session_handle (app_session);
174 return app->cb_fns.session_accept_callback (app_session);
175}
176
Florin Coras58d36f02018-03-09 13:05:53 -0800177int
Florin Coras8f89dd02018-03-05 16:53:07 -0800178tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed)
Florin Coras371ca502018-02-21 12:07:41 -0800179{
180 int (*cb_fn) (u32, u32, stream_session_t *, u8);
181 stream_session_t *app_session;
182 segment_manager_t *sm;
183 application_t *app;
184
185 app = application_get (ctx->parent_app_index);
186 cb_fn = app->cb_fns.session_connected_callback;
187
Florin Coras8f89dd02018-03-05 16:53:07 -0800188 if (is_failed)
189 goto failed;
190
Florin Coras371ca502018-02-21 12:07:41 -0800191 sm = application_get_connect_segment_manager (app);
192 app_session = session_alloc (vlib_get_thread_index ());
193 app_session->app_index = ctx->parent_app_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800194 app_session->connection_index = ctx->tls_ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800195 app_session->session_type =
196 session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, ctx->tcp_is_ip4);
197 if (session_alloc_fifos (sm, app_session))
198 goto failed;
199
200 ctx->app_session_handle = session_handle (app_session);
201 ctx->c_s_index = app_session->session_index;
Florin Coras371ca502018-02-21 12:07:41 -0800202 app_session->session_state = SESSION_STATE_READY;
203 if (cb_fn (ctx->parent_app_index, ctx->parent_app_api_context,
204 app_session, 0 /* not failed */ ))
205 {
206 TLS_DBG (1, "failed to notify app");
Florin Coras58d36f02018-03-09 13:05:53 -0800207 tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ());
Florin Coras371ca502018-02-21 12:07:41 -0800208 }
209
210 return 0;
211
212failed:
Florin Coras58d36f02018-03-09 13:05:53 -0800213 tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ());
Florin Coras371ca502018-02-21 12:07:41 -0800214 return cb_fn (ctx->parent_app_index, ctx->parent_app_api_context, 0,
215 1 /* failed */ );
216}
217
Florin Coras58d36f02018-03-09 13:05:53 -0800218static inline void
219tls_ctx_parse_handle (u32 ctx_handle, u32 * ctx_index, u32 * engine_type)
Florin Corasd77eee62018-03-07 08:49:27 -0800220{
Florin Coras58d36f02018-03-09 13:05:53 -0800221 *ctx_index = ctx_handle & TLS_IDX_MASK;
222 *engine_type = ctx_handle >> TLS_ENGINE_TYPE_SHIFT;
223}
224
225static inline tls_engine_type_t
226tls_get_engine_type (tls_engine_type_t preferred)
227{
228 if (!tls_vfts[preferred].ctx_alloc)
229 return tls_get_available_engine ();
230 return preferred;
231}
232
233static inline u32
234tls_ctx_alloc (tls_engine_type_t engine_type)
235{
236 u32 ctx_index;
237 ctx_index = tls_vfts[engine_type].ctx_alloc ();
238 return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800239}
240
241static inline void
242tls_ctx_free (tls_ctx_t * ctx)
243{
244 vec_free (ctx->srv_hostname);
Florin Coras58d36f02018-03-09 13:05:53 -0800245 tls_vfts[ctx->tls_ctx_engine].ctx_free (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800246}
247
248static inline tls_ctx_t *
Florin Coras58d36f02018-03-09 13:05:53 -0800249tls_ctx_get (u32 ctx_handle)
Florin Corasd77eee62018-03-07 08:49:27 -0800250{
Florin Coras58d36f02018-03-09 13:05:53 -0800251 u32 ctx_index, engine_type;
252 tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type);
253 return tls_vfts[engine_type].ctx_get (ctx_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800254}
255
256static inline tls_ctx_t *
Florin Coras58d36f02018-03-09 13:05:53 -0800257tls_ctx_get_w_thread (u32 ctx_handle, u8 thread_index)
Florin Corasd77eee62018-03-07 08:49:27 -0800258{
Florin Coras58d36f02018-03-09 13:05:53 -0800259 u32 ctx_index, engine_type;
260 tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type);
261 return tls_vfts[engine_type].ctx_get_w_thread (ctx_index, thread_index);
Florin Corasd77eee62018-03-07 08:49:27 -0800262}
263
264static inline int
265tls_ctx_init_server (tls_ctx_t * ctx)
266{
Florin Coras58d36f02018-03-09 13:05:53 -0800267 return tls_vfts[ctx->tls_ctx_engine].ctx_init_server (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800268}
269
270static inline int
271tls_ctx_init_client (tls_ctx_t * ctx)
272{
Florin Coras58d36f02018-03-09 13:05:53 -0800273 return tls_vfts[ctx->tls_ctx_engine].ctx_init_client (ctx);
Florin Corasd77eee62018-03-07 08:49:27 -0800274}
275
276static inline int
Florin Coras58d36f02018-03-09 13:05:53 -0800277tls_ctx_write (tls_ctx_t * ctx, stream_session_t * app_session)
Florin Corasd77eee62018-03-07 08:49:27 -0800278{
Florin Coras58d36f02018-03-09 13:05:53 -0800279 return tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session);
Florin Corasd77eee62018-03-07 08:49:27 -0800280}
281
282static inline int
Florin Coras58d36f02018-03-09 13:05:53 -0800283tls_ctx_read (tls_ctx_t * ctx, stream_session_t * tls_session)
Florin Corasd77eee62018-03-07 08:49:27 -0800284{
Florin Coras58d36f02018-03-09 13:05:53 -0800285 return tls_vfts[ctx->tls_ctx_engine].ctx_read (ctx, tls_session);
Florin Corasd77eee62018-03-07 08:49:27 -0800286}
287
288static inline u8
289tls_ctx_handshake_is_over (tls_ctx_t * ctx)
290{
Florin Coras58d36f02018-03-09 13:05:53 -0800291 return tls_vfts[ctx->tls_ctx_engine].ctx_handshake_is_over (ctx);
Florin Coras371ca502018-02-21 12:07:41 -0800292}
293
294void
295tls_session_reset_callback (stream_session_t * s)
296{
297 clib_warning ("called...");
298}
299
300int
301tls_add_segment_callback (u32 client_index, const ssvm_private_t * fs)
302{
303 /* No-op for builtin */
304 return 0;
305}
306
307int
308tls_del_segment_callback (u32 client_index, const ssvm_private_t * fs)
309{
310 return 0;
311}
312
313void
314tls_session_disconnect_callback (stream_session_t * tls_session)
315{
316 stream_session_t *app_session;
317 tls_ctx_t *ctx;
318 application_t *app;
319
320 ctx = tls_ctx_get (tls_session->opaque);
Florin Corasd77eee62018-03-07 08:49:27 -0800321 if (!tls_ctx_handshake_is_over (ctx))
Florin Coras371ca502018-02-21 12:07:41 -0800322 {
323 stream_session_disconnect (tls_session);
324 return;
325 }
326 ctx->is_passive_close = 1;
327 app = application_get (ctx->parent_app_index);
328 app_session = session_get_from_handle (ctx->app_session_handle);
329 app->cb_fns.session_disconnect_callback (app_session);
330}
331
332int
333tls_session_accept_callback (stream_session_t * tls_session)
334{
335 stream_session_t *tls_listener;
336 tls_ctx_t *lctx, *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800337 u32 ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800338
Florin Coras5c9083d2018-04-13 06:39:07 -0700339 tls_listener = listen_session_get (tls_session->listener_index);
Florin Coras371ca502018-02-21 12:07:41 -0800340 lctx = tls_listener_ctx_get (tls_listener->opaque);
Florin Coras58d36f02018-03-09 13:05:53 -0800341
342 ctx_handle = tls_ctx_alloc (lctx->tls_ctx_engine);
343 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800344 memcpy (ctx, lctx, sizeof (*lctx));
345 ctx->c_thread_index = vlib_get_thread_index ();
Florin Coras58d36f02018-03-09 13:05:53 -0800346 ctx->tls_ctx_handle = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800347 tls_session->session_state = SESSION_STATE_READY;
Florin Coras58d36f02018-03-09 13:05:53 -0800348 tls_session->opaque = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800349 ctx->tls_session_handle = session_handle (tls_session);
350 ctx->listener_ctx_index = tls_listener->opaque;
351
Florin Coras58d36f02018-03-09 13:05:53 -0800352 TLS_DBG (1, "Accept on listener %u new connection [%u]%x",
353 tls_listener->opaque, vlib_get_thread_index (), ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800354
355 return tls_ctx_init_server (ctx);
356}
357
358int
359tls_app_tx_callback (stream_session_t * app_session)
360{
Florin Coras371ca502018-02-21 12:07:41 -0800361 tls_ctx_t *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800362 if (PREDICT_FALSE (app_session->session_state == SESSION_STATE_CLOSED))
Florin Coras371ca502018-02-21 12:07:41 -0800363 return 0;
Florin Coras58d36f02018-03-09 13:05:53 -0800364 ctx = tls_ctx_get (app_session->connection_index);
365 tls_ctx_write (ctx, app_session);
Florin Coras371ca502018-02-21 12:07:41 -0800366 return 0;
367}
368
369int
370tls_app_rx_callback (stream_session_t * tls_session)
371{
Florin Coras371ca502018-02-21 12:07:41 -0800372 tls_ctx_t *ctx;
Florin Coras371ca502018-02-21 12:07:41 -0800373
374 ctx = tls_ctx_get (tls_session->opaque);
Florin Coras58d36f02018-03-09 13:05:53 -0800375 tls_ctx_read (ctx, tls_session);
376 return 0;
Florin Coras371ca502018-02-21 12:07:41 -0800377}
378
379int
380tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index,
381 stream_session_t * tls_session, u8 is_fail)
382{
383 int (*cb_fn) (u32, u32, stream_session_t *, u8);
384 application_t *app;
385 tls_ctx_t *ho_ctx, *ctx;
Florin Coras58d36f02018-03-09 13:05:53 -0800386 u32 ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800387
388 ho_ctx = tls_ctx_half_open_get (ho_ctx_index);
389 app = application_get (ho_ctx->parent_app_index);
390 cb_fn = app->cb_fns.session_connected_callback;
391
392 if (is_fail)
Florin Corasdcde9272018-03-02 09:23:42 -0800393 {
394 tls_ctx_half_open_reader_unlock ();
395 tls_ctx_half_open_free (ho_ctx_index);
396 return cb_fn (ho_ctx->parent_app_index, ho_ctx->c_s_index, 0,
397 1 /* failed */ );
398 }
Florin Coras371ca502018-02-21 12:07:41 -0800399
Florin Coras58d36f02018-03-09 13:05:53 -0800400 ctx_handle = tls_ctx_alloc (ho_ctx->tls_ctx_engine);
401 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800402 clib_memcpy (ctx, ho_ctx, sizeof (*ctx));
Florin Coras371ca502018-02-21 12:07:41 -0800403 tls_ctx_half_open_reader_unlock ();
404 tls_ctx_half_open_free (ho_ctx_index);
405
Florin Corasdcde9272018-03-02 09:23:42 -0800406 ctx->c_thread_index = vlib_get_thread_index ();
Florin Coras58d36f02018-03-09 13:05:53 -0800407 ctx->tls_ctx_handle = ctx_handle;
Florin Corasdcde9272018-03-02 09:23:42 -0800408
Florin Coras58d36f02018-03-09 13:05:53 -0800409 TLS_DBG (1, "TCP connect for %u returned %u. New connection [%u]%x",
Florin Coras371ca502018-02-21 12:07:41 -0800410 ho_ctx_index, is_fail, vlib_get_thread_index (),
Florin Coras58d36f02018-03-09 13:05:53 -0800411 (ctx) ? ctx_handle : ~0);
Florin Coras371ca502018-02-21 12:07:41 -0800412
413 ctx->tls_session_handle = session_handle (tls_session);
Florin Coras58d36f02018-03-09 13:05:53 -0800414 tls_session->opaque = ctx_handle;
Florin Coras371ca502018-02-21 12:07:41 -0800415 tls_session->session_state = SESSION_STATE_READY;
416
417 return tls_ctx_init_client (ctx);
Florin Coras371ca502018-02-21 12:07:41 -0800418}
419
420/* *INDENT-OFF* */
421static session_cb_vft_t tls_app_cb_vft = {
422 .session_accept_callback = tls_session_accept_callback,
423 .session_disconnect_callback = tls_session_disconnect_callback,
424 .session_connected_callback = tls_session_connected_callback,
425 .session_reset_callback = tls_session_reset_callback,
426 .add_segment_callback = tls_add_segment_callback,
427 .del_segment_callback = tls_del_segment_callback,
428 .builtin_app_rx_callback = tls_app_rx_callback,
429 .builtin_app_tx_callback = tls_app_tx_callback,
430};
431/* *INDENT-ON* */
432
433int
434tls_connect (transport_endpoint_t * tep)
435{
436 session_endpoint_extended_t *sep;
Florin Coras58d36f02018-03-09 13:05:53 -0800437 tls_engine_type_t engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800438 session_endpoint_t tls_sep;
439 tls_main_t *tm = &tls_main;
440 application_t *app;
441 tls_ctx_t *ctx;
442 u32 ctx_index;
443 int rv;
444
445 sep = (session_endpoint_extended_t *) tep;
Florin Coras58d36f02018-03-09 13:05:53 -0800446 app = application_get (sep->app_index);
447 engine_type = tls_get_engine_type (app->tls_engine);
448 if (engine_type == TLS_ENGINE_NONE)
449 {
450 clib_warning ("No tls engine_type available");
451 return -1;
452 }
Florin Coras371ca502018-02-21 12:07:41 -0800453
454 ctx_index = tls_ctx_half_open_alloc ();
455 ctx = tls_ctx_half_open_get (ctx_index);
456 ctx->parent_app_index = sep->app_index;
457 ctx->parent_app_api_context = sep->opaque;
458 ctx->tcp_is_ip4 = sep->is_ip4;
Florin Coras8f89dd02018-03-05 16:53:07 -0800459 if (sep->hostname)
460 {
461 ctx->srv_hostname = format (0, "%v", sep->hostname);
462 vec_terminate_c_string (ctx->srv_hostname);
463 }
Florin Coras371ca502018-02-21 12:07:41 -0800464 tls_ctx_half_open_reader_unlock ();
465
Florin Coras371ca502018-02-21 12:07:41 -0800466 application_alloc_connects_segment_manager (app);
Florin Coras58d36f02018-03-09 13:05:53 -0800467 ctx->tls_ctx_engine = engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800468
469 clib_memcpy (&tls_sep, sep, sizeof (tls_sep));
470 tls_sep.transport_proto = TRANSPORT_PROTO_TCP;
471 if ((rv = application_connect (tm->app_index, ctx_index, &tls_sep)))
472 return rv;
473
Florin Coras58d36f02018-03-09 13:05:53 -0800474 TLS_DBG (1, "New connect request %u engine %d", ctx_index, engine_type);
Florin Coras371ca502018-02-21 12:07:41 -0800475 return 0;
476}
477
478void
Florin Coras58d36f02018-03-09 13:05:53 -0800479tls_disconnect (u32 ctx_handle, u32 thread_index)
Florin Coras371ca502018-02-21 12:07:41 -0800480{
481 stream_session_t *tls_session, *app_session;
482 tls_ctx_t *ctx;
483
Florin Coras58d36f02018-03-09 13:05:53 -0800484 TLS_DBG (1, "Disconnecting %x", ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800485
Florin Coras58d36f02018-03-09 13:05:53 -0800486 ctx = tls_ctx_get (ctx_handle);
Florin Coras371ca502018-02-21 12:07:41 -0800487 tls_session = session_get_from_handle (ctx->tls_session_handle);
488 stream_session_disconnect (tls_session);
489
490 app_session = session_get_from_handle_if_valid (ctx->app_session_handle);
491 if (app_session)
492 {
493 segment_manager_dealloc_fifos (app_session->svm_segment_index,
494 app_session->server_rx_fifo,
495 app_session->server_tx_fifo);
496 session_free (app_session);
497 }
498 tls_ctx_free (ctx);
499}
500
501u32
502tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep)
503{
504 tls_main_t *tm = &tls_main;
Florin Coras58d36f02018-03-09 13:05:53 -0800505 application_t *tls_app, *app;
Florin Coras371ca502018-02-21 12:07:41 -0800506 session_handle_t tls_handle;
507 session_endpoint_extended_t *sep;
508 stream_session_t *tls_listener;
509 tls_ctx_t *lctx;
510 u32 lctx_index;
Florin Coras371ca502018-02-21 12:07:41 -0800511 stream_session_t *app_listener;
Florin Coras58d36f02018-03-09 13:05:53 -0800512 tls_engine_type_t engine_type;
Florin Coras371ca502018-02-21 12:07:41 -0800513
514 sep = (session_endpoint_extended_t *) tep;
Florin Coras58d36f02018-03-09 13:05:53 -0800515 app = application_get (sep->app_index);
516 engine_type = tls_get_engine_type (app->tls_engine);
517 if (engine_type == TLS_ENGINE_NONE)
518 {
519 clib_warning ("No tls engine_type available");
520 return -1;
521 }
522
Florin Coras371ca502018-02-21 12:07:41 -0800523 lctx_index = tls_listener_ctx_alloc ();
Florin Coras371ca502018-02-21 12:07:41 -0800524
525 tls_app = application_get (tm->app_index);
526 sep->transport_proto = TRANSPORT_PROTO_TCP;
527 if (application_start_listen (tls_app, (session_endpoint_t *) sep,
528 &tls_handle))
529 return ~0;
530
531 tls_listener = listen_session_get_from_handle (tls_handle);
532 tls_listener->opaque = lctx_index;
Florin Coras58d36f02018-03-09 13:05:53 -0800533
Florin Coras5c9083d2018-04-13 06:39:07 -0700534 app_listener = listen_session_get (app_listener_index);
Florin Coras58d36f02018-03-09 13:05:53 -0800535
536 lctx = tls_listener_ctx_get (lctx_index);
Florin Coras371ca502018-02-21 12:07:41 -0800537 lctx->parent_app_index = sep->app_index;
538 lctx->tls_session_handle = tls_handle;
539 lctx->app_session_handle = listen_session_get_handle (app_listener);
540 lctx->tcp_is_ip4 = sep->is_ip4;
Florin Coras58d36f02018-03-09 13:05:53 -0800541 lctx->tls_ctx_engine = engine_type;
542
543 TLS_DBG (1, "Started listening %d, engine type %d", lctx_index,
544 engine_type);
Florin Coras371ca502018-02-21 12:07:41 -0800545 return lctx_index;
546}
547
548u32
Florin Corase3e2f072018-03-04 07:24:30 -0800549tls_stop_listen (u32 lctx_index)
Florin Coras371ca502018-02-21 12:07:41 -0800550{
Florin Corase3e2f072018-03-04 07:24:30 -0800551 tls_main_t *tm = &tls_main;
552 application_t *tls_app;
553 tls_ctx_t *lctx;
554 lctx = tls_listener_ctx_get (lctx_index);
555 tls_app = application_get (tm->app_index);
556 application_stop_listen (tls_app, lctx->tls_session_handle);
557 tls_listener_ctx_free (lctx);
Florin Coras371ca502018-02-21 12:07:41 -0800558 return 0;
559}
560
561transport_connection_t *
Florin Corase3e2f072018-03-04 07:24:30 -0800562tls_connection_get (u32 ctx_index, u32 thread_index)
563{
564 tls_ctx_t *ctx;
565 ctx = tls_ctx_get_w_thread (ctx_index, thread_index);
566 return &ctx->connection;
567}
568
569transport_connection_t *
Florin Coras371ca502018-02-21 12:07:41 -0800570tls_listener_get (u32 listener_index)
571{
572 tls_ctx_t *ctx;
573 ctx = tls_listener_ctx_get (listener_index);
574 return &ctx->connection;
575}
576
577u8 *
578format_tls_ctx (u8 * s, va_list * args)
579{
580 tls_ctx_t *ctx = va_arg (*args, tls_ctx_t *);
581 u32 thread_index = va_arg (*args, u32);
582 u32 child_si, child_ti;
583
584 session_parse_handle (ctx->tls_session_handle, &child_si, &child_ti);
585 if (thread_index != child_ti)
586 clib_warning ("app and tls sessions are on different threads!");
587
Florin Corase3e2f072018-03-04 07:24:30 -0800588 s = format (s, "[#%d][TLS] app %u child %u", child_ti,
589 ctx->parent_app_index, child_si);
Florin Coras371ca502018-02-21 12:07:41 -0800590 return s;
591}
592
593u8 *
594format_tls_connection (u8 * s, va_list * args)
595{
596 u32 ctx_index = va_arg (*args, u32);
597 u32 thread_index = va_arg (*args, u32);
598 u32 verbose = va_arg (*args, u32);
599 tls_ctx_t *ctx;
600
601 ctx = tls_ctx_get_w_thread (ctx_index, thread_index);
602 if (!ctx)
603 return s;
604
605 s = format (s, "%-50U", format_tls_ctx, ctx, thread_index);
606 if (verbose)
607 {
608 s = format (s, "%-15s", "state");
609 if (verbose > 1)
610 s = format (s, "\n");
611 }
612 return s;
613}
614
615u8 *
616format_tls_listener (u8 * s, va_list * args)
617{
618 u32 tc_index = va_arg (*args, u32);
619 tls_ctx_t *ctx = tls_listener_ctx_get (tc_index);
Florin Coras5c9083d2018-04-13 06:39:07 -0700620 u32 listener_index, thread_index;
Florin Coras371ca502018-02-21 12:07:41 -0800621
Florin Coras5c9083d2018-04-13 06:39:07 -0700622 listen_session_parse_handle (ctx->tls_session_handle, &listener_index,
623 &thread_index);
Florin Coras371ca502018-02-21 12:07:41 -0800624 return format (s, "[TLS] listener app %u child %u", ctx->parent_app_index,
625 listener_index);
626}
627
628u8 *
629format_tls_half_open (u8 * s, va_list * args)
630{
631 u32 tc_index = va_arg (*args, u32);
632 tls_ctx_t *ctx = tls_ctx_half_open_get (tc_index);
633 s = format (s, "[TLS] half-open app %u", ctx->parent_app_index);
634 tls_ctx_half_open_reader_unlock ();
635 return s;
636}
637
638/* *INDENT-OFF* */
639const static transport_proto_vft_t tls_proto = {
640 .open = tls_connect,
641 .close = tls_disconnect,
642 .bind = tls_start_listen,
Florin Corase3e2f072018-03-04 07:24:30 -0800643 .get_connection = tls_connection_get,
Florin Coras371ca502018-02-21 12:07:41 -0800644 .get_listener = tls_listener_get,
645 .unbind = tls_stop_listen,
646 .tx_type = TRANSPORT_TX_INTERNAL,
647 .service_type = TRANSPORT_SERVICE_APP,
648 .format_connection = format_tls_connection,
649 .format_half_open = format_tls_half_open,
650 .format_listener = format_tls_listener,
651};
652/* *INDENT-ON* */
653
Florin Corasd77eee62018-03-07 08:49:27 -0800654void
655tls_register_engine (const tls_engine_vft_t * vft, tls_engine_type_t type)
Florin Coras371ca502018-02-21 12:07:41 -0800656{
Florin Corasd77eee62018-03-07 08:49:27 -0800657 vec_validate (tls_vfts, type);
658 tls_vfts[type] = *vft;
Florin Coras371ca502018-02-21 12:07:41 -0800659}
660
Dave Barachcc5677b2018-03-28 19:08:45 -0400661static clib_error_t *
Florin Coras371ca502018-02-21 12:07:41 -0800662tls_init (vlib_main_t * vm)
663{
Florin Coras58d36f02018-03-09 13:05:53 -0800664 vlib_thread_main_t *vtm = vlib_get_thread_main ();
Florin Coras371ca502018-02-21 12:07:41 -0800665 vnet_app_attach_args_t _a, *a = &_a;
666 u64 options[APP_OPTIONS_N_OPTIONS];
667 u32 segment_size = 512 << 20;
668 tls_main_t *tm = &tls_main;
Florin Corasd77eee62018-03-07 08:49:27 -0800669 u32 fifo_size = 64 << 10;
Florin Coras58d36f02018-03-09 13:05:53 -0800670 u32 num_threads;
671
672 num_threads = 1 /* main thread */ + vtm->n_threads;
Florin Coras371ca502018-02-21 12:07:41 -0800673
674 memset (a, 0, sizeof (*a));
675 memset (options, 0, sizeof (options));
676
677 a->session_cb_vft = &tls_app_cb_vft;
Florin Coras0bee9ce2018-03-22 21:24:31 -0700678 a->api_client_index = APP_INVALID_INDEX;
Florin Coras371ca502018-02-21 12:07:41 -0800679 a->options = options;
Florin Coras0bee9ce2018-03-22 21:24:31 -0700680 a->name = format (0, "tls");
Florin Coras371ca502018-02-21 12:07:41 -0800681 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
682 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
683 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
684 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
685 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
686
687 if (vnet_application_attach (a))
688 {
689 clib_warning ("failed to attach tls app");
690 return clib_error_return (0, "failed to attach tls app");
691 }
692
Florin Corasd77eee62018-03-07 08:49:27 -0800693 if (!tm->ca_cert_path)
694 tm->ca_cert_path = TLS_CA_CERT_PATH;
695
Florin Coras371ca502018-02-21 12:07:41 -0800696 tm->app_index = a->app_index;
Florin Coras371ca502018-02-21 12:07:41 -0800697 clib_rwlock_init (&tm->half_open_rwlock);
698
Florin Coras58d36f02018-03-09 13:05:53 -0800699 vec_validate (tm->rx_bufs, num_threads - 1);
700 vec_validate (tm->tx_bufs, num_threads - 1);
701
Florin Coras371ca502018-02-21 12:07:41 -0800702 transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto,
703 FIB_PROTOCOL_IP4, ~0);
704 transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto,
705 FIB_PROTOCOL_IP6, ~0);
Florin Coras0bee9ce2018-03-22 21:24:31 -0700706 vec_free (a->name);
Florin Coras371ca502018-02-21 12:07:41 -0800707 return 0;
708}
709
710VLIB_INIT_FUNCTION (tls_init);
711
Florin Coras8f89dd02018-03-05 16:53:07 -0800712static clib_error_t *
713tls_config_fn (vlib_main_t * vm, unformat_input_t * input)
714{
715 tls_main_t *tm = &tls_main;
716 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
717 {
718 if (unformat (input, "use-test-cert-in-ca"))
719 tm->use_test_cert_in_ca = 1;
720 else if (unformat (input, "ca-cert-path %s", &tm->ca_cert_path))
721 ;
722 else
723 return clib_error_return (0, "unknown input `%U'",
724 format_unformat_error, input);
725 }
726 return 0;
727}
728
729VLIB_EARLY_CONFIG_FUNCTION (tls_config_fn, "tls");
Florin Corasd77eee62018-03-07 08:49:27 -0800730
731tls_main_t *
732vnet_tls_get_main (void)
733{
734 return &tls_main;
735}
736
Florin Coras371ca502018-02-21 12:07:41 -0800737/*
738 * fd.io coding-style-patch-verification: ON
739 *
740 * Local Variables:
741 * eval: (c-set-style "gnu")
742 * End:
743 */