Squashed 'lib/mbedtls/external/mbedtls/' content from commit 2ca6c285a0dd

git-subtree-dir: lib/mbedtls/external/mbedtls
git-subtree-split: 2ca6c285a0dd3f33982dd57299012dacab1ff206

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 */