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authorAdam Harrison <adamdharrison@gmail.com>2022-11-26 16:20:59 -0500
committerAdam Harrison <adamdharrison@gmail.com>2022-11-29 18:39:46 -0500
commitfc0c4ed9a3103e0e6534311923668879fc8e0875 (patch)
tree6e7723c3f45d39f06c243d9c18a3c038da948793 /lib/mbedtls-2.27.0/programs/ssl/dtls_client.c
parent3836606e2b735ba7b2dc0f580231843660587fb4 (diff)
downloadlite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.tar.gz
lite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.zip
Removed openssl, and curl, and added mbedded tls.curl-removal
Almost fully removed curl, needs more testing. Fixed most issues, now trying to cross compile. Fix? Sigh.
Diffstat (limited to 'lib/mbedtls-2.27.0/programs/ssl/dtls_client.c')
-rw-r--r--lib/mbedtls-2.27.0/programs/ssl/dtls_client.c363
1 files changed, 363 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/programs/ssl/dtls_client.c b/lib/mbedtls-2.27.0/programs/ssl/dtls_client.c
new file mode 100644
index 0000000..8c302a0
--- /dev/null
+++ b/lib/mbedtls-2.27.0/programs/ssl/dtls_client.c
@@ -0,0 +1,363 @@
+/*
+ * Simple DTLS client demonstration program
+ *
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#else
+#include <stdio.h>
+#include <stdlib.h>
+#define mbedtls_printf printf
+#define mbedtls_fprintf fprintf
+#define mbedtls_exit exit
+#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
+#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
+#endif
+
+#if !defined(MBEDTLS_SSL_CLI_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) || \
+ !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_TIMING_C) || \
+ !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) || \
+ !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_RSA_C) || \
+ !defined(MBEDTLS_CERTS_C) || !defined(MBEDTLS_PEM_PARSE_C)
+int main( void )
+{
+ mbedtls_printf( "MBEDTLS_SSL_CLI_C and/or MBEDTLS_SSL_PROTO_DTLS and/or "
+ "MBEDTLS_NET_C and/or MBEDTLS_TIMING_C and/or "
+ "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
+ "MBEDTLS_X509_CRT_PARSE_C and/or MBEDTLS_RSA_C and/or "
+ "MBEDTLS_CERTS_C and/or MBEDTLS_PEM_PARSE_C not defined.\n" );
+ mbedtls_exit( 0 );
+}
+#else
+
+#include <string.h>
+
+#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 "mbedtls/certs.h"
+#include "mbedtls/timing.h"
+
+/* Uncomment out the following line to default to IPv4 and disable IPv6 */
+//#define FORCE_IPV4
+
+#define SERVER_PORT "4433"
+#define SERVER_NAME "localhost"
+
+#ifdef FORCE_IPV4
+#define SERVER_ADDR "127.0.0.1" /* Forces IPv4 */
+#else
+#define SERVER_ADDR "::1"
+#endif
+
+#define MESSAGE "Echo this"
+
+#define READ_TIMEOUT_MS 1000
+#define MAX_RETRY 5
+
+#define DEBUG_LEVEL 0
+
+
+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( int argc, char *argv[] )
+{
+ int ret, len;
+ mbedtls_net_context server_fd;
+ uint32_t flags;
+ unsigned char buf[1024];
+ const char *pers = "dtls_client";
+ int retry_left = MAX_RETRY;
+
+ mbedtls_entropy_context entropy;
+ mbedtls_ctr_drbg_context ctr_drbg;
+ mbedtls_ssl_context ssl;
+ mbedtls_ssl_config conf;
+ mbedtls_x509_crt cacert;
+ mbedtls_timing_delay_context timer;
+
+ ((void) argc);
+ ((void) argv);
+
+#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_printf( "\n . Seeding the random number generator..." );
+ fflush( stdout );
+
+ mbedtls_entropy_init( &entropy );
+ 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. Load 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 udp/%s/%s...", SERVER_NAME, SERVER_PORT );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_net_connect( &server_fd, SERVER_ADDR,
+ SERVER_PORT, MBEDTLS_NET_PROTO_UDP ) ) != 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 DTLS structure..." );
+ fflush( stdout );
+
+ if( ( ret = mbedtls_ssl_config_defaults( &conf,
+ MBEDTLS_SSL_IS_CLIENT,
+ MBEDTLS_SSL_TRANSPORT_DATAGRAM,
+ MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
+ {
+ mbedtls_printf( " failed\n ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
+ goto exit;
+ }
+
+ /* OPTIONAL is usually a bad choice for security, but makes interop easier
+ * in this simplified example, in which the ca chain is hardcoded.
+ * Production code should set a proper ca chain and use REQUIRED. */
+ 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 );
+ mbedtls_ssl_conf_read_timeout( &conf, READ_TIMEOUT_MS );
+
+ 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, mbedtls_net_recv_timeout );
+
+ mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
+ mbedtls_timing_get_delay );
+
+ mbedtls_printf( " ok\n" );
+
+ /*
+ * 4. Handshake
+ */
+ mbedtls_printf( " . Performing the DTLS handshake..." );
+ fflush( stdout );
+
+ do ret = mbedtls_ssl_handshake( &ssl );
+ while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
+ ret == MBEDTLS_ERR_SSL_WANT_WRITE );
+
+ if( ret != 0 )
+ {
+ 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 would have used MBEDTLS_SSL_VERIFY_REQUIRED so that the
+ * handshake would not succeed if the peer's cert is bad. Even if we used
+ * MBEDTLS_SSL_VERIFY_OPTIONAL, we would bail out here if ret != 0 */
+ if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
+ {
+ char vrfy_buf[512];
+
+ mbedtls_printf( " failed\n" );
+
+ mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), " ! ", flags );
+
+ mbedtls_printf( "%s\n", vrfy_buf );
+ }
+ else
+ mbedtls_printf( " ok\n" );
+
+ /*
+ * 6. Write the echo request
+ */
+send_request:
+ mbedtls_printf( " > Write to server:" );
+ fflush( stdout );
+
+ len = sizeof( MESSAGE ) - 1;
+
+ do ret = mbedtls_ssl_write( &ssl, (unsigned char *) MESSAGE, len );
+ while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
+ ret == MBEDTLS_ERR_SSL_WANT_WRITE );
+
+ if( ret < 0 )
+ {
+ mbedtls_printf( " failed\n ! mbedtls_ssl_write returned %d\n\n", ret );
+ goto exit;
+ }
+
+ len = ret;
+ mbedtls_printf( " %d bytes written\n\n%s\n\n", len, MESSAGE );
+
+ /*
+ * 7. Read the echo response
+ */
+ mbedtls_printf( " < Read from server:" );
+ fflush( stdout );
+
+ len = sizeof( buf ) - 1;
+ memset( buf, 0, sizeof( buf ) );
+
+ do ret = mbedtls_ssl_read( &ssl, buf, len );
+ while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
+ ret == MBEDTLS_ERR_SSL_WANT_WRITE );
+
+ if( ret <= 0 )
+ {
+ switch( ret )
+ {
+ case MBEDTLS_ERR_SSL_TIMEOUT:
+ mbedtls_printf( " timeout\n\n" );
+ if( retry_left-- > 0 )
+ goto send_request;
+ goto exit;
+
+ case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
+ mbedtls_printf( " connection was closed gracefully\n" );
+ ret = 0;
+ goto close_notify;
+
+ default:
+ mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n\n", (unsigned int) -ret );
+ goto exit;
+ }
+ }
+
+ len = ret;
+ mbedtls_printf( " %d bytes read\n\n%s\n\n", len, buf );
+
+ /*
+ * 8. Done, cleanly close the connection
+ */
+close_notify:
+ mbedtls_printf( " . Closing the connection..." );
+
+ /* No error checking, the connection might be closed already */
+ do ret = mbedtls_ssl_close_notify( &ssl );
+ while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
+ ret = 0;
+
+ mbedtls_printf( " done\n" );
+
+ /*
+ * 9. Final clean-ups and exit
+ */
+exit:
+
+#ifdef MBEDTLS_ERROR_C
+ if( ret != 0 )
+ {
+ 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(_WIN32)
+ mbedtls_printf( " + Press Enter to exit this program.\n" );
+ fflush( stdout ); getchar();
+#endif
+
+ /* Shell can not handle large exit numbers -> 1 for errors */
+ if( ret < 0 )
+ ret = 1;
+
+ mbedtls_exit( ret );
+}
+#endif /* MBEDTLS_SSL_CLI_C && MBEDTLS_SSL_PROTO_DTLS && MBEDTLS_NET_C &&
+ MBEDTLD_TIMING_C && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C &&
+ MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_RSA_C && MBEDTLS_CERTS_C &&
+ MBEDTLS_PEM_PARSE_C */