summaryrefslogtreecommitdiff
path: root/programs/ssl/ssl_pthread_server.c
diff options
context:
space:
mode:
Diffstat (limited to 'programs/ssl/ssl_pthread_server.c')
-rw-r--r--programs/ssl/ssl_pthread_server.c489
1 files changed, 489 insertions, 0 deletions
diff --git a/programs/ssl/ssl_pthread_server.c b/programs/ssl/ssl_pthread_server.c
new file mode 100644
index 00000000000..fcb8f2f4d5b
--- /dev/null
+++ b/programs/ssl/ssl_pthread_server.c
@@ -0,0 +1,489 @@
+/*
+ * SSL server demonstration program using pthread for handling multiple
+ * clients.
+ *
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#include "mbedtls/build_info.h"
+
+#include "mbedtls/platform.h"
+
+#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \
+ !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_SRV_C) || \
+ !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) || \
+ !defined(MBEDTLS_CTR_DRBG_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
+ !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_THREADING_C) || \
+ !defined(MBEDTLS_THREADING_PTHREAD) || !defined(MBEDTLS_PEM_PARSE_C)
+int main(void)
+{
+ mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C "
+ "and/or MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
+ "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
+ "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C and/or "
+ "MBEDTLS_THREADING_C and/or MBEDTLS_THREADING_PTHREAD "
+ "and/or MBEDTLS_PEM_PARSE_C not defined.\n");
+ mbedtls_exit(0);
+}
+#else
+
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(_WIN32)
+#include <windows.h>
+#endif
+
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/x509.h"
+#include "mbedtls/ssl.h"
+#include "mbedtls/net_sockets.h"
+#include "mbedtls/error.h"
+#include "test/certs.h"
+
+#if defined(MBEDTLS_SSL_CACHE_C)
+#include "mbedtls/ssl_cache.h"
+#endif
+
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+#include "mbedtls/memory_buffer_alloc.h"
+#endif
+
+
+#define HTTP_RESPONSE \
+ "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
+ "<h2>Mbed TLS Test Server</h2>\r\n" \
+ "<p>Successful connection using: %s</p>\r\n"
+
+#define DEBUG_LEVEL 0
+
+#define MAX_NUM_THREADS 5
+
+mbedtls_threading_mutex_t debug_mutex;
+
+static void my_mutexed_debug(void *ctx, int level,
+ const char *file, int line,
+ const char *str)
+{
+ long int thread_id = (long int) pthread_self();
+
+ mbedtls_mutex_lock(&debug_mutex);
+
+ ((void) level);
+ mbedtls_fprintf((FILE *) ctx, "%s:%04d: [ #%ld ] %s",
+ file, line, thread_id, str);
+ fflush((FILE *) ctx);
+
+ mbedtls_mutex_unlock(&debug_mutex);
+}
+
+typedef struct {
+ mbedtls_net_context client_fd;
+ int thread_complete;
+ const mbedtls_ssl_config *config;
+} thread_info_t;
+
+typedef struct {
+ int active;
+ thread_info_t data;
+ pthread_t thread;
+} pthread_info_t;
+
+static thread_info_t base_info;
+static pthread_info_t threads[MAX_NUM_THREADS];
+
+static void *handle_ssl_connection(void *data)
+{
+ int ret, len;
+ thread_info_t *thread_info = (thread_info_t *) data;
+ mbedtls_net_context *client_fd = &thread_info->client_fd;
+ long int thread_id = (long int) pthread_self();
+ unsigned char buf[1024];
+ mbedtls_ssl_context ssl;
+
+ /* Make sure memory references are valid */
+ mbedtls_ssl_init(&ssl);
+
+ mbedtls_printf(" [ #%ld ] Setting up SSL/TLS data\n", thread_id);
+
+ /*
+ * 4. Get the SSL context ready
+ */
+ if ((ret = mbedtls_ssl_setup(&ssl, thread_info->config)) != 0) {
+ mbedtls_printf(" [ #%ld ] failed: mbedtls_ssl_setup returned -0x%04x\n",
+ thread_id, (unsigned int) -ret);
+ goto thread_exit;
+ }
+
+ mbedtls_ssl_set_bio(&ssl, client_fd, mbedtls_net_send, mbedtls_net_recv, NULL);
+
+ /*
+ * 5. Handshake
+ */
+ mbedtls_printf(" [ #%ld ] Performing the SSL/TLS handshake\n", thread_id);
+
+ while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) {
+ if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+ mbedtls_printf(" [ #%ld ] failed: mbedtls_ssl_handshake returned -0x%04x\n",
+ thread_id, (unsigned int) -ret);
+ goto thread_exit;
+ }
+ }
+
+ mbedtls_printf(" [ #%ld ] ok\n", thread_id);
+
+ /*
+ * 6. Read the HTTP Request
+ */
+ mbedtls_printf(" [ #%ld ] < Read from client\n", thread_id);
+
+ do {
+ len = sizeof(buf) - 1;
+ memset(buf, 0, sizeof(buf));
+ ret = mbedtls_ssl_read(&ssl, buf, len);
+
+ if (ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE) {
+ continue;
+ }
+
+ if (ret <= 0) {
+ switch (ret) {
+ case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
+ mbedtls_printf(" [ #%ld ] connection was closed gracefully\n",
+ thread_id);
+ goto thread_exit;
+
+ case MBEDTLS_ERR_NET_CONN_RESET:
+ mbedtls_printf(" [ #%ld ] connection was reset by peer\n",
+ thread_id);
+ goto thread_exit;
+
+ default:
+ mbedtls_printf(" [ #%ld ] mbedtls_ssl_read returned -0x%04x\n",
+ thread_id, (unsigned int) -ret);
+ goto thread_exit;
+ }
+ }
+
+ len = ret;
+ mbedtls_printf(" [ #%ld ] %d bytes read\n=====\n%s\n=====\n",
+ thread_id, len, (char *) buf);
+
+ if (ret > 0) {
+ break;
+ }
+ } while (1);
+
+ /*
+ * 7. Write the 200 Response
+ */
+ mbedtls_printf(" [ #%ld ] > Write to client:\n", thread_id);
+
+ len = sprintf((char *) buf, HTTP_RESPONSE,
+ mbedtls_ssl_get_ciphersuite(&ssl));
+
+ while ((ret = mbedtls_ssl_write(&ssl, buf, len)) <= 0) {
+ if (ret == MBEDTLS_ERR_NET_CONN_RESET) {
+ mbedtls_printf(" [ #%ld ] failed: peer closed the connection\n",
+ thread_id);
+ goto thread_exit;
+ }
+
+ if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+ mbedtls_printf(" [ #%ld ] failed: mbedtls_ssl_write returned -0x%04x\n",
+ thread_id, (unsigned int) ret);
+ goto thread_exit;
+ }
+ }
+
+ len = ret;
+ mbedtls_printf(" [ #%ld ] %d bytes written\n=====\n%s\n=====\n",
+ thread_id, len, (char *) buf);
+
+ mbedtls_printf(" [ #%ld ] . Closing the connection...", thread_id);
+
+ while ((ret = mbedtls_ssl_close_notify(&ssl)) < 0) {
+ if (ret != MBEDTLS_ERR_SSL_WANT_READ &&
+ ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+ mbedtls_printf(" [ #%ld ] failed: mbedtls_ssl_close_notify returned -0x%04x\n",
+ thread_id, (unsigned int) ret);
+ goto thread_exit;
+ }
+ }
+
+ mbedtls_printf(" ok\n");
+
+ ret = 0;
+
+thread_exit:
+
+#ifdef MBEDTLS_ERROR_C
+ if (ret != 0) {
+ char error_buf[100];
+ mbedtls_strerror(ret, error_buf, 100);
+ mbedtls_printf(" [ #%ld ] Last error was: -0x%04x - %s\n\n",
+ thread_id, (unsigned int) -ret, error_buf);
+ }
+#endif
+
+ mbedtls_net_free(client_fd);
+ mbedtls_ssl_free(&ssl);
+
+ thread_info->thread_complete = 1;
+
+ return NULL;
+}
+
+static int thread_create(mbedtls_net_context *client_fd)
+{
+ int ret, i;
+
+ /*
+ * Find in-active or finished thread slot
+ */
+ for (i = 0; i < MAX_NUM_THREADS; i++) {
+ if (threads[i].active == 0) {
+ break;
+ }
+
+ if (threads[i].data.thread_complete == 1) {
+ mbedtls_printf(" [ main ] Cleaning up thread %d\n", i);
+ pthread_join(threads[i].thread, NULL);
+ memset(&threads[i], 0, sizeof(pthread_info_t));
+ break;
+ }
+ }
+
+ if (i == MAX_NUM_THREADS) {
+ return -1;
+ }
+
+ /*
+ * Fill thread-info for thread
+ */
+ memcpy(&threads[i].data, &base_info, sizeof(base_info));
+ threads[i].active = 1;
+ memcpy(&threads[i].data.client_fd, client_fd, sizeof(mbedtls_net_context));
+
+ if ((ret = pthread_create(&threads[i].thread, NULL, handle_ssl_connection,
+ &threads[i].data)) != 0) {
+ return ret;
+ }
+
+ return 0;
+}
+
+int main(void)
+{
+ int ret;
+ mbedtls_net_context listen_fd, client_fd;
+ const char pers[] = "ssl_pthread_server";
+
+ mbedtls_entropy_context entropy;
+ mbedtls_ctr_drbg_context ctr_drbg;
+ mbedtls_ssl_config conf;
+ mbedtls_x509_crt srvcert;
+ mbedtls_x509_crt cachain;
+ mbedtls_pk_context pkey;
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+ unsigned char alloc_buf[100000];
+#endif
+#if defined(MBEDTLS_SSL_CACHE_C)
+ mbedtls_ssl_cache_context cache;
+#endif
+
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+ mbedtls_memory_buffer_alloc_init(alloc_buf, sizeof(alloc_buf));
+#endif
+
+#if defined(MBEDTLS_SSL_CACHE_C)
+ mbedtls_ssl_cache_init(&cache);
+#endif
+
+ mbedtls_x509_crt_init(&srvcert);
+ mbedtls_x509_crt_init(&cachain);
+
+ mbedtls_ssl_config_init(&conf);
+ mbedtls_ctr_drbg_init(&ctr_drbg);
+ memset(threads, 0, sizeof(threads));
+ mbedtls_net_init(&listen_fd);
+ mbedtls_net_init(&client_fd);
+
+ mbedtls_mutex_init(&debug_mutex);
+
+ base_info.config = &conf;
+
+ /*
+ * We use only a single entropy source that is used in all the threads.
+ */
+ mbedtls_entropy_init(&entropy);
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+ psa_status_t status = psa_crypto_init();
+ if (status != PSA_SUCCESS) {
+ mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
+ (int) status);
+ ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+ goto exit;
+ }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
+ /*
+ * 1a. Seed the random number generator
+ */
+ mbedtls_printf(" . Seeding the random number generator...");
+
+ if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
+ (const unsigned char *) pers,
+ strlen(pers))) != 0) {
+ mbedtls_printf(" failed: mbedtls_ctr_drbg_seed returned -0x%04x\n",
+ (unsigned int) -ret);
+ goto exit;
+ }
+
+ mbedtls_printf(" ok\n");
+
+ /*
+ * 1b. Load the certificates and private RSA key
+ */
+ mbedtls_printf("\n . Loading the server cert. and key...");
+ fflush(stdout);
+
+ /*
+ * This demonstration program uses embedded test certificates.
+ * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
+ * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
+ */
+ ret = mbedtls_x509_crt_parse(&srvcert, (const unsigned char *) mbedtls_test_srv_crt,
+ mbedtls_test_srv_crt_len);
+ if (ret != 0) {
+ mbedtls_printf(" failed\n ! mbedtls_x509_crt_parse returned %d\n\n", ret);
+ goto exit;
+ }
+
+ ret = mbedtls_x509_crt_parse(&cachain, (const unsigned char *) mbedtls_test_cas_pem,
+ mbedtls_test_cas_pem_len);
+ if (ret != 0) {
+ mbedtls_printf(" failed\n ! mbedtls_x509_crt_parse returned %d\n\n", ret);
+ goto exit;
+ }
+
+ mbedtls_pk_init(&pkey);
+ ret = mbedtls_pk_parse_key(&pkey, (const unsigned char *) mbedtls_test_srv_key,
+ mbedtls_test_srv_key_len, NULL, 0,
+ mbedtls_ctr_drbg_random, &ctr_drbg);
+ if (ret != 0) {
+ mbedtls_printf(" failed\n ! mbedtls_pk_parse_key returned %d\n\n", ret);
+ goto exit;
+ }
+
+ mbedtls_printf(" ok\n");
+
+ /*
+ * 1c. Prepare SSL configuration
+ */
+ mbedtls_printf(" . Setting up the SSL data....");
+
+ if ((ret = mbedtls_ssl_config_defaults(&conf,
+ MBEDTLS_SSL_IS_SERVER,
+ MBEDTLS_SSL_TRANSPORT_STREAM,
+ MBEDTLS_SSL_PRESET_DEFAULT)) != 0) {
+ mbedtls_printf(" failed: mbedtls_ssl_config_defaults returned -0x%04x\n",
+ (unsigned int) -ret);
+ goto exit;
+ }
+
+ mbedtls_ssl_conf_rng(&conf, mbedtls_ctr_drbg_random, &ctr_drbg);
+ mbedtls_ssl_conf_dbg(&conf, my_mutexed_debug, stdout);
+
+ /* mbedtls_ssl_cache_get() and mbedtls_ssl_cache_set() are thread-safe if
+ * MBEDTLS_THREADING_C is set.
+ */
+#if defined(MBEDTLS_SSL_CACHE_C)
+ mbedtls_ssl_conf_session_cache(&conf, &cache,
+ mbedtls_ssl_cache_get,
+ mbedtls_ssl_cache_set);
+#endif
+
+ mbedtls_ssl_conf_ca_chain(&conf, &cachain, NULL);
+ if ((ret = mbedtls_ssl_conf_own_cert(&conf, &srvcert, &pkey)) != 0) {
+ mbedtls_printf(" failed\n ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret);
+ goto exit;
+ }
+
+ mbedtls_printf(" ok\n");
+
+ /*
+ * 2. Setup the listening TCP socket
+ */
+ mbedtls_printf(" . Bind on https://localhost:4433/ ...");
+ fflush(stdout);
+
+ if ((ret = mbedtls_net_bind(&listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP)) != 0) {
+ mbedtls_printf(" failed\n ! mbedtls_net_bind returned %d\n\n", ret);
+ goto exit;
+ }
+
+ mbedtls_printf(" ok\n");
+
+reset:
+#ifdef MBEDTLS_ERROR_C
+ if (ret != 0) {
+ char error_buf[100];
+ mbedtls_strerror(ret, error_buf, 100);
+ mbedtls_printf(" [ main ] Last error was: -0x%04x - %s\n", (unsigned int) -ret,
+ error_buf);
+ }
+#endif
+
+ /*
+ * 3. Wait until a client connects
+ */
+ mbedtls_printf(" [ main ] Waiting for a remote connection\n");
+
+ if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,
+ NULL, 0, NULL)) != 0) {
+ mbedtls_printf(" [ main ] failed: mbedtls_net_accept returned -0x%04x\n",
+ (unsigned int) ret);
+ goto exit;
+ }
+
+ mbedtls_printf(" [ main ] ok\n");
+ mbedtls_printf(" [ main ] Creating a new thread\n");
+
+ if ((ret = thread_create(&client_fd)) != 0) {
+ mbedtls_printf(" [ main ] failed: thread_create returned %d\n", ret);
+ mbedtls_net_free(&client_fd);
+ goto reset;
+ }
+
+ ret = 0;
+ goto reset;
+
+exit:
+ mbedtls_x509_crt_free(&srvcert);
+ mbedtls_pk_free(&pkey);
+#if defined(MBEDTLS_SSL_CACHE_C)
+ mbedtls_ssl_cache_free(&cache);
+#endif
+ mbedtls_ctr_drbg_free(&ctr_drbg);
+ mbedtls_entropy_free(&entropy);
+ mbedtls_ssl_config_free(&conf);
+ mbedtls_net_free(&listen_fd);
+ mbedtls_mutex_free(&debug_mutex);
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
+ mbedtls_memory_buffer_alloc_free();
+#endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+ mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
+ mbedtls_exit(ret);
+}
+
+#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C &&
+ MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C &&
+ MBEDTLS_RSA_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_THREADING_C &&
+ MBEDTLS_THREADING_PTHREAD && MBEDTLS_PEM_PARSE_C */
generated by cgit v1.2.3 (git 2.0.4) at 2025-09-20 18:35:56 +0000