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

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

1 files changed, 288 insertions, 0 deletions

diff --git a/programs/ssl/ssl_client1.c b/programs/ssl/ssl_client1.c
new file mode 100644
index 00000000000..ee734b1ed10
--- /dev/null
+++ b/programs/ssl/ssl_client1.c
@@ -0,0 +1,288 @@
+/*
+ *  SSL client demonstration program
+ *
+ *  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_CLI_C) ||    \
+    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) ||            \
+    !defined(MBEDTLS_PEM_PARSE_C) || !defined(MBEDTLS_CTR_DRBG_C) || \
+    !defined(MBEDTLS_X509_CRT_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_CLI_C and/or "
+                   "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
+                   "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C "
+                   "not defined.\n");
+    mbedtls_exit(0);
+}
+#else
+
+#include "mbedtls/net_sockets.h"
+#include "mbedtls/debug.h"
+#include "mbedtls/ssl.h"
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/error.h"
+#include "test/certs.h"
+
+#include <string.h>
+
+#define SERVER_PORT "4433"
+#define SERVER_NAME "localhost"
+#define GET_REQUEST "GET / HTTP/1.0\r\n\r\n"
+
+#define DEBUG_LEVEL 1
+
+
+static void my_debug(void *ctx, int level,
+                     const char *file, int line,
+                     const char *str)
+{
+    ((void) level);
+
+    mbedtls_fprintf((FILE *) ctx, "%s:%04d: %s", file, line, str);
+    fflush((FILE *) ctx);
+}
+
+int main(void)
+{
+    int ret = 1, len;
+    int exit_code = MBEDTLS_EXIT_FAILURE;
+    mbedtls_net_context server_fd;
+    uint32_t flags;
+    unsigned char buf[1024];
+    const char *pers = "ssl_client1";
+
+    mbedtls_entropy_context entropy;
+    mbedtls_ctr_drbg_context ctr_drbg;
+    mbedtls_ssl_context ssl;
+    mbedtls_ssl_config conf;
+    mbedtls_x509_crt cacert;
+
+#if defined(MBEDTLS_DEBUG_C)
+    mbedtls_debug_set_threshold(DEBUG_LEVEL);
+#endif
+
+    /*
+     * 0. Initialize the RNG and the session data
+     */
+    mbedtls_net_init(&server_fd);
+    mbedtls_ssl_init(&ssl);
+    mbedtls_ssl_config_init(&conf);
+    mbedtls_x509_crt_init(&cacert);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
+    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);
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
+    mbedtls_printf("\n  . Seeding the random number generator...");
+    fflush(stdout);
+
+
+    if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
+                                     (const unsigned char *) pers,
+                                     strlen(pers))) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);
+        goto exit;
+    }
+
+    mbedtls_printf(" ok\n");
+
+    /*
+     * 0. Initialize certificates
+     */
+    mbedtls_printf("  . Loading the CA root certificate ...");
+    fflush(stdout);
+
+    ret = mbedtls_x509_crt_parse(&cacert, (const unsigned char *) mbedtls_test_cas_pem,
+                                 mbedtls_test_cas_pem_len);
+    if (ret < 0) {
+        mbedtls_printf(" failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n",
+                       (unsigned int) -ret);
+        goto exit;
+    }
+
+    mbedtls_printf(" ok (%d skipped)\n", ret);
+
+    /*
+     * 1. Start the connection
+     */
+    mbedtls_printf("  . Connecting to tcp/%s/%s...", SERVER_NAME, SERVER_PORT);
+    fflush(stdout);
+
+    if ((ret = mbedtls_net_connect(&server_fd, SERVER_NAME,
+                                   SERVER_PORT, MBEDTLS_NET_PROTO_TCP)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_connect returned %d\n\n", ret);
+        goto exit;
+    }
+
+    mbedtls_printf(" ok\n");
+
+    /*
+     * 2. Setup stuff
+     */
+    mbedtls_printf("  . Setting up the SSL/TLS structure...");
+    fflush(stdout);
+
+    if ((ret = mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret);
+        goto exit;
+    }
+
+    mbedtls_printf(" ok\n");
+
+    /* OPTIONAL is not optimal for security,
+     * but makes interop easier in this simplified example */
+    mbedtls_ssl_conf_authmode(&conf, MBEDTLS_SSL_VERIFY_OPTIONAL);
+    mbedtls_ssl_conf_ca_chain(&conf, &cacert, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_ctr_drbg_random, &ctr_drbg);
+    mbedtls_ssl_conf_dbg(&conf, my_debug, stdout);
+
+    if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret);
+        goto exit;
+    }
+
+    if ((ret = mbedtls_ssl_set_hostname(&ssl, SERVER_NAME)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret);
+        goto exit;
+    }
+
+    mbedtls_ssl_set_bio(&ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL);
+
+    /*
+     * 4. Handshake
+     */
+    mbedtls_printf("  . Performing the SSL/TLS handshake...");
+    fflush(stdout);
+
+    while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) {
+        if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+            mbedtls_printf(" failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n",
+                           (unsigned int) -ret);
+            goto exit;
+        }
+    }
+
+    mbedtls_printf(" ok\n");
+
+    /*
+     * 5. Verify the server certificate
+     */
+    mbedtls_printf("  . Verifying peer X.509 certificate...");
+
+    /* In real life, we probably want to bail out when ret != 0 */
+    if ((flags = mbedtls_ssl_get_verify_result(&ssl)) != 0) {
+#if !defined(MBEDTLS_X509_REMOVE_INFO)
+        char vrfy_buf[512];
+#endif
+
+        mbedtls_printf(" failed\n");
+
+#if !defined(MBEDTLS_X509_REMOVE_INFO)
+        mbedtls_x509_crt_verify_info(vrfy_buf, sizeof(vrfy_buf), "  ! ", flags);
+
+        mbedtls_printf("%s\n", vrfy_buf);
+#endif
+    } else {
+        mbedtls_printf(" ok\n");
+    }
+
+    /*
+     * 3. Write the GET request
+     */
+    mbedtls_printf("  > Write to server:");
+    fflush(stdout);
+
+    len = sprintf((char *) buf, GET_REQUEST);
+
+    while ((ret = mbedtls_ssl_write(&ssl, buf, len)) <= 0) {
+        if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+            mbedtls_printf(" failed\n  ! mbedtls_ssl_write returned %d\n\n", ret);
+            goto exit;
+        }
+    }
+
+    len = ret;
+    mbedtls_printf(" %d bytes written\n\n%s", len, (char *) buf);
+
+    /*
+     * 7. Read the HTTP response
+     */
+    mbedtls_printf("  < Read from server:");
+    fflush(stdout);
+
+    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 == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) {
+            break;
+        }
+
+        if (ret < 0) {
+            mbedtls_printf("failed\n  ! mbedtls_ssl_read returned %d\n\n", ret);
+            break;
+        }
+
+        if (ret == 0) {
+            mbedtls_printf("\n\nEOF\n\n");
+            break;
+        }
+
+        len = ret;
+        mbedtls_printf(" %d bytes read\n\n%s", len, (char *) buf);
+    } while (1);
+
+    mbedtls_ssl_close_notify(&ssl);
+
+    exit_code = MBEDTLS_EXIT_SUCCESS;
+
+exit:
+
+#ifdef MBEDTLS_ERROR_C
+    if (exit_code != MBEDTLS_EXIT_SUCCESS) {
+        char error_buf[100];
+        mbedtls_strerror(ret, error_buf, 100);
+        mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf);
+    }
+#endif
+
+    mbedtls_net_free(&server_fd);
+    mbedtls_x509_crt_free(&cacert);
+    mbedtls_ssl_free(&ssl);
+    mbedtls_ssl_config_free(&conf);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
+    mbedtls_entropy_free(&entropy);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
+    mbedtls_exit(exit_code);
+}
+#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
+          MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
+          MBEDTLS_PEM_PARSE_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_X509_CRT_PARSE_C */