#include <openssl/ssl.h>
#include <openssl/conf.h>
#include <openssl/err.h>
+#ifdef HAVE_OPENSSL_ASYNC
+#include <openssl/async.h>
+#endif
+#include <dlfcn.h>
#include <vnet/plugin/plugin.h>
#include <vpp/app/version.h>
#include <vnet/tls/tls.h>
+#include <ctype.h>
+#include <tlsopenssl/tls_openssl.h>
-typedef struct tls_ctx_openssl_
-{
- tls_ctx_t ctx; /**< First */
- u32 openssl_ctx_index;
- SSL_CTX *ssl_ctx;
- SSL *ssl;
- BIO *rbio;
- BIO *wbio;
- X509 *srvcert;
- EVP_PKEY *pkey;
-} openssl_ctx_t;
-
-typedef struct openssl_main_
-{
- openssl_ctx_t ***ctx_pool;
- X509_STORE *cert_store;
-} openssl_main_t;
+#define MAX_CRYPTO_LEN 16
static openssl_main_t openssl_main;
-
static u32
openssl_ctx_alloc (void)
{
if (!(*ctx))
*ctx = clib_mem_alloc (sizeof (openssl_ctx_t));
- memset (*ctx, 0, sizeof (openssl_ctx_t));
+ clib_memset (*ctx, 0, sizeof (openssl_ctx_t));
(*ctx)->ctx.c_thread_index = thread_index;
(*ctx)->ctx.tls_ctx_engine = TLS_ENGINE_OPENSSL;
(*ctx)->ctx.app_session_handle = SESSION_INVALID_HANDLE;
if (SSL_is_init_finished (oc->ssl) && !ctx->is_passive_close)
SSL_shutdown (oc->ssl);
- if (SSL_is_server (oc->ssl))
- {
- X509_free (oc->srvcert);
- EVP_PKEY_free (oc->pkey);
- }
SSL_free (oc->ssl);
pool_put_index (openssl_main.ctx_pool[ctx->c_thread_index],
oc->openssl_ctx_index);
}
-static tls_ctx_t *
+tls_ctx_t *
openssl_ctx_get (u32 ctx_index)
{
openssl_ctx_t **ctx;
return &(*ctx)->ctx;
}
-static tls_ctx_t *
+tls_ctx_t *
openssl_ctx_get_w_thread (u32 ctx_index, u8 thread_index)
{
openssl_ctx_t **ctx;
return &(*ctx)->ctx;
}
+static u32
+openssl_listen_ctx_alloc (void)
+{
+ openssl_main_t *om = &openssl_main;
+ openssl_listen_ctx_t *lctx;
+
+ pool_get (om->lctx_pool, lctx);
+
+ clib_memset (lctx, 0, sizeof (openssl_listen_ctx_t));
+ lctx->openssl_lctx_index = lctx - om->lctx_pool;
+ return lctx->openssl_lctx_index;
+}
+
+static void
+openssl_listen_ctx_free (openssl_listen_ctx_t * lctx)
+{
+ pool_put_index (openssl_main.lctx_pool, lctx->openssl_lctx_index);
+}
+
+openssl_listen_ctx_t *
+openssl_lctx_get (u32 lctx_index)
+{
+ return pool_elt_at_index (openssl_main.lctx_pool, lctx_index);
+}
+
static int
openssl_try_handshake_read (openssl_ctx_t * oc,
stream_session_t * tls_session)
return 0;
svm_fifo_enqueue_nocopy (f, read);
- tls_add_vpp_q_evt (f, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_tx_evt (tls_session);
if (read < enq_max)
{
return read;
}
+#ifdef HAVE_OPENSSL_ASYNC
+static int
+vpp_ssl_async_process_event (tls_ctx_t * ctx,
+ openssl_resume_handler * handler)
+{
+ openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
+ openssl_tls_callback_t *engine_cb;
+
+ engine_cb = vpp_add_async_pending_event (ctx, handler);
+ if (engine_cb)
+ {
+ SSL_set_async_callback (oc->ssl, (void *) engine_cb->callback,
+ (void *) engine_cb->arg);
+ TLS_DBG (2, "set callback to engine %p\n", engine_cb->callback);
+ }
+ return 0;
+
+}
+
+/* Due to engine busy stat, VPP need to retry later */
static int
+vpp_ssl_async_retry_func (tls_ctx_t * ctx, openssl_resume_handler * handler)
+{
+ openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
+
+ if (vpp_add_async_run_event (ctx, handler))
+ {
+ SSL_set_async_estatus (oc->ssl, 0);
+ }
+ return 0;
+
+}
+
+#endif
+
+int
openssl_ctx_handshake_rx (tls_ctx_t * ctx, stream_session_t * tls_session)
{
openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
int rv = 0, err;
+#ifdef HAVE_OPENSSL_ASYNC
+ int estatus;
+ openssl_resume_handler *myself;
+#endif
+
while (SSL_in_init (oc->ssl))
{
- if (!openssl_try_handshake_read (oc, tls_session))
- break;
+ if (ctx->resume)
+ {
+ ctx->resume = 0;
+ }
+ else if (!openssl_try_handshake_read (oc, tls_session))
+ {
+ break;
+ }
rv = SSL_do_handshake (oc->ssl);
err = SSL_get_error (oc->ssl, rv);
openssl_try_handshake_write (oc, tls_session);
+#ifdef HAVE_OPENSSL_ASYNC
+ myself = openssl_ctx_handshake_rx;
+ if (SSL_get_async_estatus (oc->ssl, &estatus)
+ && (estatus == ENGINE_STATUS_RETRY))
+ {
+ vpp_ssl_async_retry_func (ctx, myself);
+ }
+ else if (err == SSL_ERROR_WANT_ASYNC)
+ {
+ vpp_ssl_async_process_event (ctx, myself);
+ }
+#endif
+
if (err != SSL_ERROR_WANT_WRITE)
{
if (err == SSL_ERROR_SSL)
wrote = SSL_write (oc->ssl, svm_fifo_head (f), to_write);
if (wrote <= 0)
{
- tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_builtin_tx_evt (app_session);
goto check_tls_fifo;
}
svm_fifo_dequeue_drop (app_session->server_tx_fifo, wrote);
}
}
- if (deq_now < deq_max)
- tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX);
+ if (wrote < deq_max)
+ tls_add_vpp_q_builtin_tx_evt (app_session);
check_tls_fifo:
enq_max = svm_fifo_max_enqueue (f);
if (!enq_max)
{
- tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_builtin_tx_evt (app_session);
return wrote;
}
read = BIO_read (oc->rbio, svm_fifo_tail (f), deq_now);
if (read <= 0)
{
- tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_builtin_tx_evt (app_session);
return wrote;
}
svm_fifo_enqueue_nocopy (f, read);
- tls_add_vpp_q_evt (f, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_tx_evt (tls_session);
if (read < enq_max && BIO_ctrl_pending (oc->rbio) > 0)
{
}
if (BIO_ctrl_pending (oc->rbio) > 0)
- tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX);
+ tls_add_vpp_q_builtin_tx_evt (app_session);
return wrote;
}
wrote = BIO_write (oc->wbio, svm_fifo_head (f), to_read);
if (wrote <= 0)
{
- tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX);
+ tls_add_vpp_q_builtin_rx_evt (tls_session);
goto check_app_fifo;
}
svm_fifo_dequeue_drop (f, wrote);
}
}
if (svm_fifo_max_dequeue (f))
- tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX);
+ tls_add_vpp_q_builtin_rx_evt (tls_session);
check_app_fifo:
enq_max = svm_fifo_max_enqueue (f);
if (!enq_max)
{
- tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX);
+ tls_add_vpp_q_builtin_rx_evt (tls_session);
return wrote;
}
read = SSL_read (oc->ssl, svm_fifo_tail (f), deq_now);
if (read <= 0)
{
- tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX);
+ tls_add_vpp_q_builtin_rx_evt (tls_session);
return wrote;
}
svm_fifo_enqueue_nocopy (f, read);
tls_notify_app_enqueue (ctx, app_session);
if (BIO_ctrl_pending (oc->wbio) > 0)
- tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX);
+ tls_add_vpp_q_builtin_rx_evt (tls_session);
return wrote;
}
static int
openssl_ctx_init_client (tls_ctx_t * ctx)
{
- char *ciphers = "ALL:!ADH:!LOW:!EXP:!MD5:!RC4-SHA:!DES-CBC3-SHA:@STRENGTH";
long flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION;
openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
openssl_main_t *om = &openssl_main;
stream_session_t *tls_session;
const SSL_METHOD *method;
int rv, err;
+#ifdef HAVE_OPENSSL_ASYNC
+ openssl_resume_handler *handler;
+#endif
method = SSLv23_client_method ();
if (method == NULL)
SSL_CTX_set_ecdh_auto (oc->ssl_ctx, 1);
SSL_CTX_set_mode (oc->ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
- rv = SSL_CTX_set_cipher_list (oc->ssl_ctx, (const char *) ciphers);
+#ifdef HAVE_OPENSSL_ASYNC
+ if (om->async)
+ SSL_CTX_set_mode (oc->ssl_ctx, SSL_MODE_ASYNC);
+#endif
+ rv = SSL_CTX_set_cipher_list (oc->ssl_ctx, (const char *) om->ciphers);
if (rv != 1)
{
TLS_DBG (1, "Couldn't set cipher");
rv = SSL_do_handshake (oc->ssl);
err = SSL_get_error (oc->ssl, rv);
openssl_try_handshake_write (oc, tls_session);
+#ifdef HAVE_OPENSSL_ASYNC
+ if (err == SSL_ERROR_WANT_ASYNC)
+ {
+ handler = (openssl_resume_handler *) openssl_ctx_handshake_rx;
+ vpp_ssl_async_process_event (ctx, handler);
+ break;
+ }
+#endif
if (err != SSL_ERROR_WANT_WRITE)
break;
}
}
static int
-openssl_ctx_init_server (tls_ctx_t * ctx)
+openssl_start_listen (tls_ctx_t * lctx)
{
- char *ciphers = "ALL:!ADH:!LOW:!EXP:!MD5:!RC4-SHA:!DES-CBC3-SHA:@STRENGTH";
- long flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION;
- openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
- stream_session_t *tls_session;
- const SSL_METHOD *method;
application_t *app;
- int rv, err;
+ const SSL_METHOD *method;
+ SSL_CTX *ssl_ctx;
+ int rv;
BIO *cert_bio;
+ X509 *srvcert;
+ EVP_PKEY *pkey;
+ u32 olc_index;
+ openssl_listen_ctx_t *olc;
- app = application_get (ctx->parent_app_index);
+ long flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION;
+ openssl_main_t *om = &openssl_main;
+
+ app = application_get (lctx->parent_app_index);
if (!app->tls_cert || !app->tls_key)
{
TLS_DBG (1, "tls cert and/or key not configured %d",
- ctx->parent_app_index);
+ lctx->parent_app_index);
return -1;
}
method = SSLv23_method ();
- oc->ssl_ctx = SSL_CTX_new (method);
- if (!oc->ssl_ctx)
+ ssl_ctx = SSL_CTX_new (method);
+ if (!ssl_ctx)
{
clib_warning ("Unable to create SSL context");
return -1;
}
- SSL_CTX_set_mode (oc->ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
- SSL_CTX_set_options (oc->ssl_ctx, flags);
- SSL_CTX_set_ecdh_auto (oc->ssl_ctx, 1);
+ SSL_CTX_set_mode (ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
+#ifdef HAVE_OPENSSL_ASYNC
+ if (om->async)
+ SSL_CTX_set_mode (ssl_ctx, SSL_MODE_ASYNC);
+#endif
+ SSL_CTX_set_options (ssl_ctx, flags);
+ SSL_CTX_set_ecdh_auto (ssl_ctx, 1);
- rv = SSL_CTX_set_cipher_list (oc->ssl_ctx, (const char *) ciphers);
+ rv = SSL_CTX_set_cipher_list (ssl_ctx, (const char *) om->ciphers);
if (rv != 1)
{
TLS_DBG (1, "Couldn't set cipher");
*/
cert_bio = BIO_new (BIO_s_mem ());
BIO_write (cert_bio, app->tls_cert, vec_len (app->tls_cert));
- oc->srvcert = PEM_read_bio_X509 (cert_bio, NULL, NULL, NULL);
- if (!oc->srvcert)
+ srvcert = PEM_read_bio_X509 (cert_bio, NULL, NULL, NULL);
+ if (!srvcert)
{
clib_warning ("unable to parse certificate");
return -1;
}
+ SSL_CTX_use_certificate (ssl_ctx, srvcert);
BIO_free (cert_bio);
+
cert_bio = BIO_new (BIO_s_mem ());
BIO_write (cert_bio, app->tls_key, vec_len (app->tls_key));
- oc->pkey = PEM_read_bio_PrivateKey (cert_bio, NULL, NULL, NULL);
- if (!oc->pkey)
+ pkey = PEM_read_bio_PrivateKey (cert_bio, NULL, NULL, NULL);
+ if (!pkey)
{
clib_warning ("unable to parse pkey");
return -1;
}
-
+ SSL_CTX_use_PrivateKey (ssl_ctx, pkey);
BIO_free (cert_bio);
- oc->ssl = SSL_new (oc->ssl_ctx);
+ olc_index = openssl_listen_ctx_alloc ();
+ olc = openssl_lctx_get (olc_index);
+ olc->ssl_ctx = ssl_ctx;
+ olc->srvcert = srvcert;
+ olc->pkey = pkey;
+
+ /* store SSL_CTX into TLS level structure */
+ lctx->tls_ssl_ctx = olc_index;
+
+ return 0;
+
+}
+
+static int
+openssl_stop_listen (tls_ctx_t * lctx)
+{
+ u32 olc_index;
+ openssl_listen_ctx_t *olc;
+
+ olc_index = lctx->tls_ssl_ctx;
+ olc = openssl_lctx_get (olc_index);
+
+ X509_free (olc->srvcert);
+ EVP_PKEY_free (olc->pkey);
+
+ SSL_CTX_free (olc->ssl_ctx);
+ openssl_listen_ctx_free (olc);
+
+ return 0;
+}
+
+static int
+openssl_ctx_init_server (tls_ctx_t * ctx)
+{
+ openssl_ctx_t *oc = (openssl_ctx_t *) ctx;
+ u32 olc_index = ctx->tls_ssl_ctx;
+ openssl_listen_ctx_t *olc;
+ stream_session_t *tls_session;
+ int rv, err;
+#ifdef HAVE_OPENSSL_ASYNC
+ openssl_resume_handler *handler;
+#endif
+
+ /* Start a new connection */
+
+ olc = openssl_lctx_get (olc_index);
+ oc->ssl = SSL_new (olc->ssl_ctx);
if (oc->ssl == NULL)
{
TLS_DBG (1, "Couldn't initialize ssl struct");
rv = SSL_do_handshake (oc->ssl);
err = SSL_get_error (oc->ssl, rv);
openssl_try_handshake_write (oc, tls_session);
+#ifdef HAVE_OPENSSL_ASYNC
+ if (err == SSL_ERROR_WANT_ASYNC)
+ {
+ handler = (openssl_resume_handler *) openssl_ctx_handshake_rx;
+ vpp_ssl_async_process_event (ctx, handler);
+ break;
+ }
+#endif
if (err != SSL_ERROR_WANT_WRITE)
break;
}
.ctx_write = openssl_ctx_write,
.ctx_read = openssl_ctx_read,
.ctx_handshake_is_over = openssl_handshake_is_over,
+ .ctx_start_listen = openssl_start_listen,
+ .ctx_stop_listen = openssl_stop_listen,
};
int
return (rv < 0 ? -1 : 0);
}
+static int
+tls_openssl_set_ciphers (char *ciphers)
+{
+ openssl_main_t *om = &openssl_main;
+ int i;
+
+ if (!ciphers)
+ {
+ return -1;
+ }
+
+ vec_validate (om->ciphers, strlen (ciphers) - 1);
+ for (i = 0; i < vec_len (om->ciphers); i++)
+ {
+ om->ciphers[i] = toupper (ciphers[i]);
+ }
+
+ return 0;
+
+}
+
static clib_error_t *
tls_openssl_init (vlib_main_t * vm)
{
vec_validate (om->ctx_pool, num_threads - 1);
tls_register_engine (&openssl_engine, TLS_ENGINE_OPENSSL);
+
+ om->engine_init = 0;
+
+ /* default ciphers */
+ tls_openssl_set_ciphers
+ ("ALL:!ADH:!LOW:!EXP:!MD5:!RC4-SHA:!DES-CBC3-SHA:@STRENGTH");
+
+ return 0;
+}
+
+#ifdef HAVE_OPENSSL_ASYNC
+static clib_error_t *
+tls_openssl_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ openssl_main_t *om = &openssl_main;
+ char *engine_name = NULL;
+ char *engine_alg = NULL;
+ char *ciphers = NULL;
+ u8 engine_name_set = 0;
+ int i;
+
+ /* By present, it is not allowed to configure engine again after running */
+ if (om->engine_init)
+ {
+ clib_warning ("engine has started!\n");
+ return clib_error_return
+ (0, "engine has started, and no config is accepted");
+ }
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "engine %s", &engine_name))
+ {
+ engine_name_set = 1;
+ }
+ else if (unformat (input, "async"))
+ {
+ om->async = 1;
+ openssl_async_node_enable_disable (1);
+ }
+ else if (unformat (input, "alg %s", &engine_alg))
+ {
+ for (i = 0; i < strnlen (engine_alg, MAX_CRYPTO_LEN); i++)
+ engine_alg[i] = toupper (engine_alg[i]);
+ }
+ else if (unformat (input, "ciphers %s", &ciphers))
+ {
+ tls_openssl_set_ciphers (ciphers);
+ }
+ else
+ return clib_error_return (0, "failed: unknown input `%U'",
+ format_unformat_error, input);
+ }
+
+ /* reset parameters if engine is not configured */
+ if (!engine_name_set)
+ {
+ clib_warning ("No engine provided! \n");
+ om->async = 0;
+ }
+ else
+ {
+ if (!openssl_engine_register (engine_name, engine_alg))
+ {
+ return clib_error_return (0, "failed to register %s polling",
+ engine_name);
+ }
+ }
+
return 0;
}
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (tls_openssl_set_command, static) =
+{
+ .path = "tls openssl set",
+ .short_help = "tls openssl set [engine <engine name>] [alg [algorithm] [async]",
+ .function = tls_openssl_set_command_fn,
+};
+/* *INDENT-ON* */
+#endif
+
+
VLIB_INIT_FUNCTION (tls_openssl_init);
/* *INDENT-OFF* */
Code Review / vpp.git / blobdiff