int ssl_free_info(ssl_info *sslinfo){
x509_crt_free(&sslinfo->cacert );
ssl_free(&sslinfo->ssl);
ctr_drbg_free(&sslinfo->ctr_drbg );
entropy_free(&sslinfo->entropy );
return 0;
}
void ms_dtls_srtp_context_destroy(MSDtlsSrtpContext *ctx) {
/* clean polarssl contexts */
if (ctx->rtp_dtls_context) {
x509_crt_free( &(ctx->rtp_dtls_context->crt) );
ssl_free( &(ctx->rtp_dtls_context->ssl) );
ctr_drbg_free( &(ctx->rtp_dtls_context->ctr_drbg) );
entropy_free( &(ctx->rtp_dtls_context->entropy) );
pk_free( &(ctx->rtp_dtls_context->pkey) );
ssl_cookie_free( &(ctx->rtp_dtls_context->cookie_ctx) );
ms_mutex_destroy(&ctx->rtp_dtls_context->ssl_context_mutex);
ms_free(ctx->rtp_dtls_context);
}
if (ctx->rtcp_dtls_context) {
x509_crt_free( &(ctx->rtcp_dtls_context->crt) );
ssl_free( &(ctx->rtcp_dtls_context->ssl) );
ctr_drbg_free( &(ctx->rtcp_dtls_context->ctr_drbg) );
entropy_free( &(ctx->rtcp_dtls_context->entropy) );
pk_free( &(ctx->rtcp_dtls_context->pkey) );
ssl_cookie_free( &(ctx->rtcp_dtls_context->cookie_ctx) );
ms_mutex_destroy(&ctx->rtcp_dtls_context->ssl_context_mutex);
ms_free(ctx->rtcp_dtls_context);
}
/* clean incoming buffers */
while (ctx->rtp_incoming_buffer!=NULL) {
DtlsRawPacket *next_packet = ctx->rtp_incoming_buffer->next;
ms_free(ctx->rtp_incoming_buffer->data);
ms_free(ctx->rtp_incoming_buffer);
ctx->rtp_incoming_buffer = next_packet;
}
while (ctx->rtcp_incoming_buffer!=NULL) {
DtlsRawPacket *next_packet = ctx->rtcp_incoming_buffer->next;
ms_free(ctx->rtcp_incoming_buffer->data);
ms_free(ctx->rtcp_incoming_buffer);
ctx->rtcp_incoming_buffer = next_packet;
}
ms_free(ctx);
ms_message("DTLS-SRTP context destroyed");
}
polarssl_io::~polarssl_io()
{
#ifdef HAS_POLARSSL
if (ssl_)
{
::ssl_free((ssl_context*) ssl_);
acl_myfree(ssl_);
}
if (ssn_)
{
ssl_session_free((ssl_session*) ssn_);
acl_myfree(ssn_);
}
// 使用 havege_random 随机数生成器时，在一些虚机上并不能保证随机性，
// 建议使用 ctr_drbg_random 随机数生成器
# undef HAS_HAVEGE
# ifdef HAS_HAVEGE
if (rnd_)
{
// ::havege_free((havege_state*) rnd_);
acl_myfree(rnd_);
}
# else
if (rnd_)
{
# ifdef POLARSSL_1_3_X
ctr_drbg_free((ctr_drbg_context*) rnd_);
# endif
acl_myfree(rnd_);
}
# endif
#endif
}
char *mlsc_network_request(char *request, int debug_level) {
int ret, len, server_fd = -1;
char tmpbuf[BUFFER_SIZE];
char *buf = malloc(BUFFER_SIZE);
const char *pers = "ssl_client1";
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt cacert;
#if defined(POLARSSL_DEBUG_C)
if (debug_level) debug_set_threshold(1);
#endif
/*
* 0. Initialize the RNG and the session data
*/
memset(&ssl, 0, sizeof(ssl_context));
x509_crt_init(&cacert);
if (debug_level) fprintf(stderr, "\n . Seeding the random number generator...");
entropy_init(&entropy);
if ((ret = ctr_drbg_init(&ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen(pers))) != 0) {
if (debug_level) fprintf(stderr, " failed\n ! ctr_drbg_init returned %d\n", ret);
goto exit;
}
if (debug_level) fprintf(stderr, " ok\n");
/*
* 0. Initialize certificates
*/
if (debug_level) fprintf(stderr, " . Loading the CA root certificate ...");
fflush(stdout);
#if defined(POLARSSL_CERTS_C)
ret = x509_crt_parse(&cacert, (const unsigned char *) test_ca_list,
strlen(test_ca_list));
#else
ret = 1;
if (debug_level) fprintf(stderr, "POLARSSL_CERTS_C not defined.");
#endif
if (ret < 0) {
if (debug_level) fprintf(stderr, " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret);
goto exit;
}
if (debug_level) fprintf(stderr, " ok (%d skipped)\n", ret);
/*
* 1. Start the connection
*/
if (debug_level)
fprintf(stderr, " . Connecting to tcp/%s/%4d...", SERVER_NAME,
SERVER_PORT);
if ((ret = net_connect(&server_fd, SERVER_NAME,
SERVER_PORT)) != 0) {
if (debug_level) fprintf(stderr, " failed\n ! net_connect returned %d\n\n", ret);
goto exit;
}
if (debug_level) fprintf(stderr, " ok\n");
/*
* 2. Setup stuff
*/
if (debug_level) fprintf(stderr, " . Setting up the SSL/TLS structure...");
if ((ret = ssl_init(&ssl)) != 0) {
if (debug_level) fprintf(stderr, " failed\n ! ssl_init returned %d\n\n", ret);
goto exit;
}
if (debug_level) fprintf(stderr, " ok\n");
ssl_set_endpoint(&ssl, SSL_IS_CLIENT);
/* OPTIONAL is not optimal for security,
* but makes interop easier in this simplified example */
ssl_set_authmode(&ssl, SSL_VERIFY_OPTIONAL);
ssl_set_ca_chain(&ssl, &cacert, NULL, SERVER_NAME);
ssl_set_rng(&ssl, ctr_drbg_random, &ctr_drbg);
ssl_set_bio(&ssl, net_recv, &server_fd,
net_send, &server_fd);
/*
* 4. Handshake
*/
if (debug_level) fprintf(stderr, " . Performing the SSL/TLS handshake...");
while ((ret = ssl_handshake(&ssl)) != 0) {
if (ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE) {
fprintf(stderr, " failed\n ! ssl_handshake returned -0x%x\n\n", -ret);
goto exit;
}
}
if (debug_level) fprintf(stderr, " ok\n");
/*
* 5. Verify the server certificate
*/
if (debug_level) fprintf(stderr, " . Verifying peer X.509 certificate...");
/* In real life, we may want to bail out when ret != 0 */
if ((ret = ssl_get_verify_result(&ssl)) != 0) {
if (debug_level) fprintf(stderr, " failed\n");
if ((ret & BADCERT_EXPIRED) != 0 && debug_level) fprintf(stderr, " ! server certificate has expired\n");
if ((ret & BADCERT_REVOKED) != 0 && debug_level) fprintf(stderr, " ! server certificate has been revoked\n");
if ((ret & BADCERT_CN_MISMATCH) != 0 && debug_level)
fprintf(stderr, " ! CN mismatch (expected CN=%s)\n", SERVER_NAME);
if ((ret & BADCERT_NOT_TRUSTED) != 0 && debug_level)
fprintf(stderr, " ! self-signed or not signed by a trusted CA\n");
if (debug_level) fprintf(stderr, "\n");
}
else if (debug_level) fprintf(stderr, " ok\n");
/*
* 3. Write the GET request
*/
if (debug_level) fprintf(stderr, " > Write to server:");
len = sprintf((char *) tmpbuf, POST_REQUEST, strlen(request), request);
while ((ret = ssl_write(&ssl, tmpbuf, len)) <= 0) {
if (ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE) {
if (debug_level) fprintf(stderr, " failed\n ! ssl_write returned %d\n\n", ret);
goto exit;
}
}
len = ret;
if (debug_level) fprintf(stderr, " %d bytes written\n\n%s", len, (char *) tmpbuf);
/*
* 7. Read the HTTP response
*/
if (debug_level) fprintf(stderr, " < Read from server:");
do {
len = BUFFER_SIZE - 1;
memset(tmpbuf, 0, BUFFER_SIZE);
ret = ssl_read(&ssl, tmpbuf, len);
if (ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE)
continue;
if (ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY)
break;
if (ret < 0) {
if (debug_level) fprintf(stderr, "failed\n ! ssl_read returned %d\n\n", ret);
break;
}
if (ret == 0) {
if (debug_level) fprintf(stderr, "\n\nEOF\n\n");
break;
}
len = ret;
if (debug_level) fprintf(stderr, " %d bytes read\n\n%s\n", len, (char *) tmpbuf);
strcpy(buf, tmpbuf);
}
while (1);
ssl_close_notify(&ssl);
exit:
#ifdef POLARSSL_ERROR_C
if (ret != 0) {
char error_buf[100];
polarssl_strerror(ret, error_buf, 100);
if (debug_level) fprintf(stderr, "Last error was: %d - %s\n\n", ret, error_buf);
}
#endif
if (server_fd != -1)
net_close(server_fd);
x509_crt_free(&cacert);
ssl_free(&ssl);
ctr_drbg_free(&ctr_drbg);
entropy_free(&entropy);
memset(&ssl, 0, sizeof(ssl));
return (buf);
}
int main( int argc, char *argv[] )
{
int ret;
rainbow_context rb;
pk_context ctx;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
FILE *fpub = NULL;
FILE *fpriv = NULL;
const char *pers = "rb_genkey";
unsigned char large_buffer[256000];
ctx.pk_info = &rainbow_info;
ctx.pk_ctx = &rb;
((void) argc);
((void) argv);
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n . Generating the TTS key [ %d-bit ]...", TTS_PUBKEY_SIZE_BYTE * 8 );
fflush( stdout );
if( ( ret = rb_genkey( (uint8_t *) &rb.pk, (uint8_t *) &rb.sk, &myrand, NULL ) ) != 0 )
{
printf( " failed\n ! rb_genkey returned %d\n\n", ret );
goto exit;
}
printf( " ok\n . Exporting the public key in ./self-signed/rb-pub.pem...." );
fflush( stdout );
if( ( fpub = fopen( "./self-signed/rb-pub.pem", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open ./self-signed/rb-pub.pem for writing\n\n" );
ret = 1;
goto exit;
}
pk_write_pubkey_pem( &ctx, large_buffer, 256000 );
fwrite( large_buffer, 1, 256000, fpub );
printf( " ok\n . Exporting the private key in ./self-signed/rb-prv.pem..." );
fflush( stdout );
if( ( fpriv = fopen( "./self-signed/rb-prv.pem", "wb+" ) ) == NULL )
{
printf( " failed\n ! could not open ./self-signed/rb-prv.pem for writing\n" );
ret = 1;
goto exit;
}
pk_write_key_pem( &ctx, large_buffer, 256000 );
fwrite( large_buffer, 1, 256000, fpriv );
printf( " ok\n\n" );
exit:
if( fpub != NULL )
fclose( fpub );
if( fpriv != NULL )
fclose( fpriv );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret;
ecdsa_context ctx_sign, ctx_verify;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char hash[] = "This should be the hash of a message.";
unsigned char sig[512];
size_t sig_len;
const char *pers = "ecdsa";
((void) argv);
ecdsa_init( &ctx_sign );
ecdsa_init( &ctx_verify );
memset(sig, 0, sizeof( sig ) );
ret = 1;
if( argc != 1 )
{
polarssl_printf( "usage: ecdsa\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
/*
* Generate a key pair for signing
*/
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Generating key pair..." );
fflush( stdout );
if( ( ret = ecdsa_genkey( &ctx_sign, ECPARAMS,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_genkey returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok (key size: %d bits)\n", (int) ctx_sign.grp.pbits );
dump_pubkey( " + Public key: ", &ctx_sign );
/*
* Sign some message hash
*/
polarssl_printf( " . Signing message..." );
fflush( stdout );
if( ( ret = ecdsa_write_signature( &ctx_sign,
hash, sizeof( hash ),
sig, &sig_len,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_genkey returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok (signature length = %u)\n", (unsigned int) sig_len );
dump_buf( " + Hash: ", hash, sizeof hash );
dump_buf( " + Signature: ", sig, sig_len );
/*
* Signature is serialized as defined by RFC 4492 p. 20,
* but one can also access 'r' and 's' directly from the context
*/
#ifdef POLARSSL_FS_IO
mpi_write_file( " r = ", &ctx_sign.r, 16, NULL );
mpi_write_file( " s = ", &ctx_sign.s, 16, NULL );
#endif
/*
* Transfer public information to verifying context
*
* We could use the same context for verification and signatures, but we
* chose to use a new one in order to make it clear that the verifying
* context only needs the public key (Q), and not the private key (d).
*/
polarssl_printf( " . Preparing verification context..." );
fflush( stdout );
if( ( ret = ecp_group_copy( &ctx_verify.grp, &ctx_sign.grp ) ) != 0 )
{
polarssl_printf( " failed\n ! ecp_group_copy returned %d\n", ret );
goto exit;
}
if( ( ret = ecp_copy( &ctx_verify.Q, &ctx_sign.Q ) ) != 0 )
{
polarssl_printf( " failed\n ! ecp_copy returned %d\n", ret );
goto exit;
}
ret = 0;
/*
* Verify signature
*/
polarssl_printf( " ok\n . Verifying signature..." );
fflush( stdout );
if( ( ret = ecdsa_read_signature( &ctx_verify,
hash, sizeof( hash ),
sig, sig_len ) ) != 0 )
{
polarssl_printf( " failed\n ! ecdsa_read_signature returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
exit:
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
ecdsa_free( &ctx_verify );
ecdsa_free( &ctx_sign );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
return( ret );
}
int main( int argc, char *argv[] )
{
int ret, len, server_fd = -1;
unsigned char buf[1024];
const char *pers = "dtls_client";
int retry_left = MAX_RETRY;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt cacert;
((void) argc);
((void) argv);
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( DEBUG_LEVEL );
#endif
/*
* 0. Initialize the RNG and the session data
*/
memset( &ssl, 0, sizeof( ssl_context ) );
x509_crt_init( &cacert );
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 0. Initialize certificates
*/
printf( " . Loading the CA root certificate ..." );
fflush( stdout );
#if defined(POLARSSL_CERTS_C)
ret = x509_crt_parse( &cacert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
#else
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
#endif
if( ret < 0 )
{
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok (%d skipped)\n", ret );
/*
* 1. Start the connection
*/
printf( " . Connecting to udp/%s/%4d...", SERVER_NAME,
SERVER_PORT );
fflush( stdout );
if( ( ret = net_connect( &server_fd, SERVER_ADDR,
SERVER_PORT, NET_PROTO_UDP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Setup stuff
*/
printf( " . Setting up the DTLS structure..." );
fflush( stdout );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
ssl_set_transport( &ssl, SSL_TRANSPORT_DATAGRAM );
/* 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. */
ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
ssl_set_ca_chain( &ssl, &cacert, NULL, SERVER_NAME );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio_timeout( &ssl, &server_fd,
net_send, net_recv, net_recv_timeout,
READ_TIMEOUT_MS );
/*
* 4. Handshake
*/
printf( " . Performing the SSL/TLS handshake..." );
fflush( stdout );
do ret = ssl_handshake( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret != 0 )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 5. Verify the server certificate
*/
printf( " . Verifying peer X.509 certificate..." );
/* In real life, we would have used SSL_VERIFY_REQUIRED so that the
* handshake would not succeed if the peer's cert is bad. Even if we used
* SSL_VERIFY_OPTIONAL, we would bail out here if ret != 0 */
if( ( ret = ssl_get_verify_result( &ssl ) ) != 0 )
{
printf( " failed\n" );
if( ( ret & BADCERT_EXPIRED ) != 0 )
printf( " ! server certificate has expired\n" );
if( ( ret & BADCERT_REVOKED ) != 0 )
printf( " ! server certificate has been revoked\n" );
if( ( ret & BADCERT_CN_MISMATCH ) != 0 )
printf( " ! CN mismatch (expected CN=%s)\n", SERVER_NAME );
if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
printf( " ! self-signed or not signed by a trusted CA\n" );
printf( "\n" );
}
else
printf( " ok\n" );
/*
* 6. Write the echo request
*/
send_request:
printf( " > Write to server:" );
fflush( stdout );
len = sizeof( MESSAGE ) - 1;
do ret = ssl_write( &ssl, (unsigned char *) MESSAGE, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret < 0 )
{
printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
len = ret;
printf( " %d bytes written\n\n%s\n\n", len, MESSAGE );
/*
* 7. Read the echo response
*/
printf( " < Read from server:" );
fflush( stdout );
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
do ret = ssl_read( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_NET_TIMEOUT:
printf( " timeout\n\n" );
if( retry_left-- > 0 )
goto send_request;
goto exit;
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
printf( " connection was closed gracefully\n" );
ret = 0;
goto close_notify;
default:
printf( " ssl_read returned -0x%x\n\n", -ret );
goto exit;
}
}
len = ret;
printf( " %d bytes read\n\n%s\n\n", len, buf );
/*
* 8. Done, cleanly close the connection
*/
close_notify:
printf( " . Closing the connection..." );
/* No error checking, the connection might be closed already */
do ret = ssl_close_notify( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_WRITE );
ret = 0;
printf( " done\n" );
/*
* 9. Final clean-ups and exit
*/
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf( "Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( server_fd != -1 )
net_close( server_fd );
x509_crt_free( &cacert );
ssl_free( &ssl );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
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;
return( ret );
}
int main( int argc, char *argv[] )
{
int ret;
int listen_fd;
int client_fd = -1;
entropy_context entropy;
x509_crt srvcert;
pk_context pkey;
#if defined(POLARSSL_MEMORY_BUFFER_ALLOC_C)
unsigned char alloc_buf[100000];
#endif
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_context cache;
#endif
((void) argc);
((void) argv);
#if defined(POLARSSL_MEMORY_BUFFER_ALLOC_C)
memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) );
#endif
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_init( &cache );
base_info.cache = &cache;
#endif
memset( threads, 0, sizeof(threads) );
polarssl_mutex_init( &debug_mutex );
/*
* We use only a single entropy source that is used in all the threads.
*/
entropy_init( &entropy );
base_info.entropy = &entropy;
/*
* 1. Load the certificates and private RSA key
*/
printf( "\n . Loading the server cert. and key..." );
fflush( stdout );
x509_crt_init( &srvcert );
/*
* This demonstration program uses embedded test certificates.
* Instead, you may want to use x509_crt_parse_file() to read the
* server and CA certificates, as well as pk_parse_keyfile().
*/
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_srv_crt,
strlen( test_srv_crt ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
pk_init( &pkey );
ret = pk_parse_key( &pkey, (const unsigned char *) test_srv_key,
strlen( test_srv_key ), NULL, 0 );
if( ret != 0 )
{
printf( " failed\n ! pk_parse_key returned %d\n\n", ret );
goto exit;
}
base_info.ca_chain = srvcert.next;
base_info.server_cert = &srvcert;
base_info.server_key = &pkey;
printf( " ok\n" );
/*
* 2. Setup the listening TCP socket
*/
printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
reset:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf( " [ main ] Last error was: -0x%04x - %s\n", -ret, error_buf );
}
#endif
/*
* 3. Wait until a client connects
*/
client_fd = -1;
printf( " [ main ] Waiting for a remote connection\n" );
if( ( ret = net_accept( listen_fd, &client_fd, NULL ) ) != 0 )
{
printf( " [ main ] failed: net_accept returned -0x%04x\n", ret );
goto exit;
}
printf( " [ main ] ok\n" );
printf( " [ main ] Creating a new thread\n" );
if( ( ret = thread_create( client_fd ) ) != 0 )
{
printf( " [ main ] failed: thread_create returned %d\n", ret );
net_close( client_fd );
goto reset;
}
ret = 0;
goto reset;
exit:
x509_crt_free( &srvcert );
pk_free( &pkey );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_free( &cache );
#endif
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
polarssl_mutex_free( &debug_mutex );
#if defined(POLARSSL_MEMORY_BUFFER_ALLOC_C)
memory_buffer_alloc_free();
#endif
#if defined(_WIN32)
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0, server_fd;
unsigned char buf[1024];
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt cacert;
x509_crt clicert;
x509_crl cacrl;
pk_context pkey;
int i, j;
int flags, verify = 0;
char *p, *q;
const char *pers = "cert_app";
/*
* Set to sane values
*/
server_fd = 0;
x509_crt_init( &cacert );
x509_crt_init( &clicert );
#if defined(POLARSSL_X509_CRL_PARSE_C)
x509_crl_init( &cacrl );
#else
/* Zeroize structure as CRL parsing is not supported and we have to pass
it to the verify function */
memset( &cacrl, 0, sizeof(x509_crl) );
#endif
pk_init( &pkey );
if( argc == 0 )
{
usage:
polarssl_printf( USAGE );
ret = 2;
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.ca_file = DFL_CA_FILE;
opt.crl_file = DFL_CRL_FILE;
opt.ca_path = DFL_CA_PATH;
opt.server_name = DFL_SERVER_NAME;
opt.server_port = DFL_SERVER_PORT;
opt.debug_level = DFL_DEBUG_LEVEL;
opt.permissive = DFL_PERMISSIVE;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
for( j = 0; p + j < q; j++ )
{
if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
argv[i][j] |= 0x20;
}
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "file" ) == 0 )
opt.mode = MODE_FILE;
else if( strcmp( q, "ssl" ) == 0 )
opt.mode = MODE_SSL;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "ca_file" ) == 0 )
opt.ca_file = q;
else if( strcmp( p, "crl_file" ) == 0 )
opt.crl_file = q;
else if( strcmp( p, "ca_path" ) == 0 )
opt.ca_path = q;
else if( strcmp( p, "server_name" ) == 0 )
opt.server_name = q;
else if( strcmp( p, "server_port" ) == 0 )
{
opt.server_port = atoi( q );
if( opt.server_port < 1 || opt.server_port > 65535 )
goto usage;
}
else if( strcmp( p, "debug_level" ) == 0 )
{
opt.debug_level = atoi( q );
if( opt.debug_level < 0 || opt.debug_level > 65535 )
goto usage;
}
else if( strcmp( p, "permissive" ) == 0 )
{
opt.permissive = atoi( q );
if( opt.permissive < 0 || opt.permissive > 1 )
goto usage;
}
else
goto usage;
}
/*
* 1.1. Load the trusted CA
*/
polarssl_printf( " . Loading the CA root certificate ..." );
fflush( stdout );
if( strlen( opt.ca_path ) )
{
ret = x509_crt_parse_path( &cacert, opt.ca_path );
verify = 1;
}
else if( strlen( opt.ca_file ) )
{
ret = x509_crt_parse_file( &cacert, opt.ca_file );
verify = 1;
}
if( ret < 0 )
{
polarssl_printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
polarssl_printf( " ok (%d skipped)\n", ret );
#if defined(POLARSSL_X509_CRL_PARSE_C)
if( strlen( opt.crl_file ) )
{
if( ( ret = x509_crl_parse_file( &cacrl, opt.crl_file ) ) != 0 )
{
polarssl_printf( " failed\n ! x509_crl_parse returned -0x%x\n\n", -ret );
goto exit;
}
verify = 1;
}
#endif
if( opt.mode == MODE_FILE )
{
x509_crt crt;
x509_crt *cur = &crt;
x509_crt_init( &crt );
/*
* 1.1. Load the certificate(s)
*/
polarssl_printf( "\n . Loading the certificate(s) ..." );
fflush( stdout );
ret = x509_crt_parse_file( &crt, opt.filename );
if( ret < 0 )
{
polarssl_printf( " failed\n ! x509_crt_parse_file returned %d\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
if( opt.permissive == 0 && ret > 0 )
{
polarssl_printf( " failed\n ! x509_crt_parse failed to parse %d certificates\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 1.2 Print the certificate(s)
*/
while( cur != NULL )
{
polarssl_printf( " . Peer certificate information ...\n" );
ret = x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
cur );
if( ret == -1 )
{
polarssl_printf( " failed\n ! x509_crt_info returned %d\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
polarssl_printf( "%s\n", buf );
cur = cur->next;
}
/*
* 1.3 Verify the certificate
*/
if( verify )
{
polarssl_printf( " . Verifying X.509 certificate..." );
if( ( ret = x509_crt_verify( &crt, &cacert, &cacrl, NULL, &flags,
my_verify, NULL ) ) != 0 )
{
polarssl_printf( " failed\n" );
if( ( ret & BADCERT_EXPIRED ) != 0 )
polarssl_printf( " ! server certificate has expired\n" );
if( ( ret & BADCERT_REVOKED ) != 0 )
polarssl_printf( " ! server certificate has been revoked\n" );
if( ( ret & BADCERT_CN_MISMATCH ) != 0 )
polarssl_printf( " ! CN mismatch (expected CN=%s)\n", opt.server_name );
if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
polarssl_printf( " ! self-signed or not signed by a trusted CA\n" );
polarssl_printf( "\n" );
}
else
polarssl_printf( " ok\n" );
}
x509_crt_free( &crt );
}
else if( opt.mode == MODE_SSL )
{
/*
* 1. Initialize the RNG and the session data
*/
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n" );
/*
* 2. Start the connection
*/
polarssl_printf( " . SSL connection to tcp/%s/%-4d...", opt.server_name,
opt.server_port );
fflush( stdout );
if( ( ret = net_connect( &server_fd, opt.server_name,
opt.server_port ) ) != 0 )
{
polarssl_printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;
}
/*
* 3. Setup stuff
*/
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
if( verify )
{
ssl_set_authmode( &ssl, SSL_VERIFY_REQUIRED );
ssl_set_ca_chain( &ssl, &cacert, NULL, opt.server_name );
ssl_set_verify( &ssl, my_verify, NULL );
}
else
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
ssl_set_bio( &ssl, net_recv, &server_fd,
net_send, &server_fd );
if( ( ret = ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
#if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
if( ( ret = ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_set_hostname returned %d\n\n", ret );
goto exit;
}
#endif
/*
* 4. Handshake
*/
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
polarssl_printf( " failed\n ! ssl_handshake returned %d\n\n", ret );
ssl_free( &ssl );
goto exit;
}
}
polarssl_printf( " ok\n" );
/*
* 5. Print the certificate
*/
polarssl_printf( " . Peer certificate information ...\n" );
ret = x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
ssl.session->peer_cert );
if( ret == -1 )
{
polarssl_printf( " failed\n ! x509_crt_info returned %d\n\n", ret );
ssl_free( &ssl );
goto exit;
}
polarssl_printf( "%s\n", buf );
ssl_close_notify( &ssl );
ssl_free( &ssl );
}
else
goto usage;
exit:
if( server_fd )
net_close( server_fd );
x509_crt_free( &cacert );
x509_crt_free( &clicert );
#if defined(POLARSSL_X509_CRL_PARSE_C)
x509_crl_free( &cacrl );
#endif
pk_free( &pkey );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
if( ret < 0 )
ret = 1;
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 1;
mpi G, P, Q;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
const char *pers = "dh_genprime";
FILE *fout;
((void) argc);
((void) argv);
mpi_init( &G ); mpi_init( &P ); mpi_init( &Q );
entropy_init( &entropy );
if( ( ret = mpi_read_string( &G, 10, GENERATOR ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_read_string returned %d\n", ret );
goto exit;
}
polarssl_printf( "\nWARNING: You should not generate and use your own DHM primes\n" );
polarssl_printf( " unless you are very certain of what you are doing!\n" );
polarssl_printf( " Failing to follow this instruction may result in\n" );
polarssl_printf( " weak security for your connections! Use the\n" );
polarssl_printf( " predefined DHM parameters from dhm.h instead!\n\n" );
polarssl_printf( "============================================================\n\n" );
polarssl_printf( " ! Generating large primes may take minutes!\n" );
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Generating the modulus, please wait..." );
fflush( stdout );
/*
* This can take a long time...
*/
if( ( ret = mpi_gen_prime( &P, DH_P_SIZE, 1,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_gen_prime returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Verifying that Q = (P-1)/2 is prime..." );
fflush( stdout );
if( ( ret = mpi_sub_int( &Q, &P, 1 ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_sub_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_div_int( &Q, NULL, &Q, 2 ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_div_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mpi_is_prime( &Q, ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_is_prime returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Exporting the value in dh_prime.txt..." );
fflush( stdout );
if( ( fout = fopen( "dh_prime.txt", "wb+" ) ) == NULL )
{
ret = 1;
polarssl_printf( " failed\n ! Could not create dh_prime.txt\n\n" );
goto exit;
}
if( ( ret = mpi_write_file( "P = ", &P, 16, fout ) != 0 ) ||
( ret = mpi_write_file( "G = ", &G, 16, fout ) != 0 ) )
{
polarssl_printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n\n" );
fclose( fout );
exit:
mpi_free( &G ); mpi_free( &P ); mpi_free( &Q );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret;
rsa_context rsa;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
FILE *fpub = NULL;
FILE *fpriv = NULL;
const char *pers = "rsa_genkey";
((void) argc);
((void) argv);
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Generating the RSA key [ %d-bit ]...", KEY_SIZE );
fflush( stdout );
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = rsa_gen_key( &rsa, ctr_drbg_random, &ctr_drbg, KEY_SIZE,
EXPONENT ) ) != 0 )
{
polarssl_printf( " failed\n ! rsa_gen_key returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Exporting the public key in rsa_pub.txt...." );
fflush( stdout );
if( ( fpub = fopen( "rsa_pub.txt", "wb+" ) ) == NULL )
{
polarssl_printf( " failed\n ! could not open rsa_pub.txt for writing\n\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = ", &rsa.N, 16, fpub ) ) != 0 ||
( ret = mpi_write_file( "E = ", &rsa.E, 16, fpub ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
polarssl_printf( " ok\n . Exporting the private key in rsa_priv.txt..." );
fflush( stdout );
if( ( fpriv = fopen( "rsa_priv.txt", "wb+" ) ) == NULL )
{
polarssl_printf( " failed\n ! could not open rsa_priv.txt for writing\n" );
ret = 1;
goto exit;
}
if( ( ret = mpi_write_file( "N = " , &rsa.N , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "E = " , &rsa.E , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "D = " , &rsa.D , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "P = " , &rsa.P , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "Q = " , &rsa.Q , 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DP = ", &rsa.DP, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "DQ = ", &rsa.DQ, 16, fpriv ) ) != 0 ||
( ret = mpi_write_file( "QP = ", &rsa.QP, 16, fpriv ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_write_file returned %d\n\n", ret );
goto exit;
}
/*
polarssl_printf( " ok\n . Generating the certificate..." );
x509write_init_raw( &cert );
x509write_add_pubkey( &cert, &rsa );
x509write_add_subject( &cert, "CN='localhost'" );
x509write_add_validity( &cert, "2007-09-06 17:00:32",
"2010-09-06 17:00:32" );
x509write_create_selfsign( &cert, &rsa );
x509write_crtfile( &cert, "cert.der", X509_OUTPUT_DER );
x509write_crtfile( &cert, "cert.pem", X509_OUTPUT_PEM );
x509write_free_raw( &cert );
*/
polarssl_printf( " ok\n\n" );
exit:
if( fpub != NULL )
fclose( fpub );
if( fpriv != NULL )
fclose( fpriv );
rsa_free( &rsa );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
FILE *f;
int ret;
size_t i, olen = 0;
pk_context pk;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char input[1024];
unsigned char buf[512];
const char *pers = "pk_encrypt";
ret = 1;
if( argc != 3 )
{
polarssl_printf( "usage: pk_encrypt <key_file> <string of max 100 characters>\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned -0x%04x\n", -ret );
goto exit;
}
polarssl_printf( "\n . Reading public key from '%s'", argv[1] );
fflush( stdout );
pk_init( &pk );
if( ( ret = pk_parse_public_keyfile( &pk, argv[1] ) ) != 0 )
{
polarssl_printf( " failed\n ! pk_parse_public_keyfile returned -0x%04x\n", -ret );
goto exit;
}
if( strlen( argv[2] ) > 100 )
{
polarssl_printf( " Input data larger than 100 characters.\n\n" );
goto exit;
}
memcpy( input, argv[2], strlen( argv[2] ) );
/*
* Calculate the RSA encryption of the hash.
*/
polarssl_printf( "\n . Generating the encrypted value" );
fflush( stdout );
if( ( ret = pk_encrypt( &pk, input, strlen( argv[2] ),
buf, &olen, sizeof(buf),
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! pk_encrypt returned -0x%04x\n", -ret );
goto exit;
}
/*
* Write the signature into result-enc.txt
*/
if( ( f = fopen( "result-enc.txt", "wb+" ) ) == NULL )
{
ret = 1;
polarssl_printf( " failed\n ! Could not create %s\n\n", "result-enc.txt" );
goto exit;
}
for( i = 0; i < olen; i++ )
polarssl_fprintf( f, "%02X%s", buf[i],
( i + 1 ) % 16 == 0 ? "\r\n" : " " );
fclose( f );
polarssl_printf( "\n . Done (created \"%s\")\n\n", "result-enc.txt" );
exit:
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(POLARSSL_ERROR_C)
polarssl_strerror( ret, (char *) buf, sizeof(buf) );
polarssl_printf( " ! Last error was: %s\n", buf );
#endif
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
FILE *f;
int ret, c;
size_t i, olen = 0;
pk_context pk;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char result[1024];
unsigned char buf[512];
const char *pers = "pk_decrypt";
((void) argv);
memset(result, 0, sizeof( result ) );
ret = 1;
if( argc != 2 )
{
polarssl_printf( "usage: pk_decrypt <key_file>\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( "\n . Reading private key from '%s'", argv[1] );
fflush( stdout );
pk_init( &pk );
if( ( ret = pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
{
polarssl_printf( " failed\n ! pk_parse_keyfile returned -0x%04x\n", -ret );
goto exit;
}
/*
* Extract the RSA encrypted value from the text file
*/
ret = 1;
if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
{
polarssl_printf( "\n ! Could not open %s\n\n", "result-enc.txt" );
goto exit;
}
i = 0;
while( fscanf( f, "%02X", &c ) > 0 &&
i < (int) sizeof( buf ) )
buf[i++] = (unsigned char) c;
fclose( f );
/*
* Decrypt the encrypted RSA data and print the result.
*/
polarssl_printf( "\n . Decrypting the encrypted data" );
fflush( stdout );
if( ( ret = pk_decrypt( &pk, buf, i, result, &olen, sizeof(result),
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! pk_decrypt returned -0x%04x\n", -ret );
goto exit;
}
polarssl_printf( "\n . OK\n\n" );
polarssl_printf( "The decrypted result is: '%s'\n\n", result );
ret = 0;
exit:
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(POLARSSL_ERROR_C)
polarssl_strerror( ret, (char *) buf, sizeof(buf) );
polarssl_printf( " ! Last error was: %s\n", buf );
#endif
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
FILE *f;
int ret, c;
size_t i;
rsa_context rsa;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char result[1024];
unsigned char buf[512];
const char *pers = "rsa_decrypt";
((void) argv);
memset(result, 0, sizeof( result ) );
ret = 1;
if( argc != 1 )
{
polarssl_printf( "usage: rsa_decrypt\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
polarssl_printf( "\n . Reading private key from rsa_priv.txt" );
fflush( stdout );
if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
{
polarssl_printf( " failed\n ! Could not open rsa_priv.txt\n" \
" ! Please run rsa_genkey first\n\n" );
goto exit;
}
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.D , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.P , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.Q , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.DP, 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.DQ, 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.QP, 16, f ) ) != 0 )
{
polarssl_printf( " failed\n ! mpi_read_file returned %d\n\n", ret );
goto exit;
}
rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
fclose( f );
/*
* Extract the RSA encrypted value from the text file
*/
ret = 1;
if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
{
polarssl_printf( "\n ! Could not open %s\n\n", "result-enc.txt" );
goto exit;
}
i = 0;
while( fscanf( f, "%02X", &c ) > 0 &&
i < (int) sizeof( buf ) )
buf[i++] = (unsigned char) c;
fclose( f );
if( i != rsa.len )
{
polarssl_printf( "\n ! Invalid RSA signature format\n\n" );
goto exit;
}
/*
* Decrypt the encrypted RSA data and print the result.
*/
polarssl_printf( "\n . Decrypting the encrypted data" );
fflush( stdout );
if( ( ret = rsa_pkcs1_decrypt( &rsa, ctr_drbg_random, &ctr_drbg,
RSA_PRIVATE, &i, buf, result,
1024 ) ) != 0 )
{
polarssl_printf( " failed\n ! rsa_pkcs1_decrypt returned %d\n\n", ret );
goto exit;
}
polarssl_printf( "\n . OK\n\n" );
polarssl_printf( "The decrypted result is: '%s'\n\n", result );
ret = 0;
exit:
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret, len;
int listen_fd;
int client_fd = -1;
unsigned char buf[1024];
const char *pers = "ssl_server";
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt srvcert;
pk_context pkey;
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_context cache;
#endif
((void) argc);
((void) argv);
memset( &ssl, 0, sizeof(ssl_context) );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_init( &cache );
#endif
x509_crt_init( &srvcert );
pk_init( &pkey );
entropy_init( &entropy );
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( DEBUG_LEVEL );
#endif
/*
* 1. Load the certificates and private RSA key
*/
printf( "\n . Loading the server cert. and key..." );
fflush( stdout );
/*
* This demonstration program uses embedded test certificates.
* Instead, you may want to use x509_crt_parse_file() to read the
* server and CA certificates, as well as pk_parse_keyfile().
*/
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_srv_crt,
strlen( test_srv_crt ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = pk_parse_key( &pkey, (const unsigned char *) test_srv_key,
strlen( test_srv_key ), NULL, 0 );
if( ret != 0 )
{
printf( " failed\n ! pk_parse_key returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Setup the listening TCP socket
*/
printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 3. Seed the RNG
*/
printf( " . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 4. Setup stuff
*/
printf( " . Setting up the SSL data...." );
fflush( stdout );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_set_session_cache( &ssl, ssl_cache_get, &cache,
ssl_cache_set, &cache );
#endif
ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
if( ( ret = ssl_set_own_cert( &ssl, &srvcert, &pkey ) ) != 0 )
{
printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
reset:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf("Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( client_fd != -1 )
net_close( client_fd );
ssl_session_reset( &ssl );
/*
* 3. Wait until a client connects
*/
client_fd = -1;
printf( " . Waiting for a remote connection ..." );
fflush( stdout );
if( ( ret = net_accept( listen_fd, &client_fd, NULL ) ) != 0 )
{
printf( " failed\n ! net_accept returned %d\n\n", ret );
goto exit;
}
ssl_set_bio( &ssl, net_recv, &client_fd,
net_send, &client_fd );
printf( " ok\n" );
/*
* 5. Handshake
*/
printf( " . Performing the SSL/TLS handshake..." );
fflush( stdout );
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_handshake returned %d\n\n", ret );
goto reset;
}
}
printf( " ok\n" );
/*
* 6. Read the HTTP Request
*/
printf( " < Read from client:" );
fflush( stdout );
do
{
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
ret = ssl_read( &ssl, buf, len );
if( ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE )
continue;
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
printf( " connection was closed gracefully\n" );
break;
case POLARSSL_ERR_NET_CONN_RESET:
printf( " connection was reset by peer\n" );
break;
default:
printf( " ssl_read returned -0x%x\n", -ret );
break;
}
break;
}
len = ret;
printf( " %d bytes read\n\n%s", len, (char *) buf );
if( ret > 0 )
break;
}
while( 1 );
/*
* 7. Write the 200 Response
*/
printf( " > Write to client:" );
fflush( stdout );
len = sprintf( (char *) buf, HTTP_RESPONSE,
ssl_get_ciphersuite( &ssl ) );
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
{
if( ret == POLARSSL_ERR_NET_CONN_RESET )
{
printf( " failed\n ! peer closed the connection\n\n" );
goto reset;
}
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
}
len = ret;
printf( " %d bytes written\n\n%s\n", len, (char *) buf );
printf( " . Closing the connection..." );
while( ( ret = ssl_close_notify( &ssl ) ) < 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ &&
ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_close_notify returned %d\n\n", ret );
goto reset;
}
}
printf( " ok\n" );
ret = 0;
goto reset;
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf("Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( client_fd != -1 )
net_close( client_fd );
x509_crt_free( &srvcert );
pk_free( &pkey );
ssl_free( &ssl );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_free( &cache );
#endif
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
static void *handle_ssl_connection( void *data )
{
int ret, len;
thread_info_t *thread_info = (thread_info_t *) data;
int client_fd = thread_info->client_fd;
int thread_id = (int) pthread_self();
unsigned char buf[1024];
char pers[50];
ssl_context ssl;
ctr_drbg_context ctr_drbg;
/* Make sure memory references are valid */
memset( &ssl, 0, sizeof( ssl_context ) );
memset( &ctr_drbg, 0, sizeof( ctr_drbg_context ) );
snprintf( pers, sizeof(pers), "SSL Pthread Thread %d", thread_id );
polarssl_printf( " [ #%d ] Client FD %d\n", thread_id, client_fd );
polarssl_printf( " [ #%d ] Seeding the random number generator...\n", thread_id );
/* entropy_func() is thread-safe if POLARSSL_THREADING_C is set
*/
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, thread_info->entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " [ #%d ] failed: ctr_drbg_init returned -0x%04x\n",
thread_id, -ret );
goto thread_exit;
}
polarssl_printf( " [ #%d ] ok\n", thread_id );
/*
* 4. Setup stuff
*/
polarssl_printf( " [ #%d ] Setting up the SSL data....\n", thread_id );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
polarssl_printf( " [ #%d ] failed: ssl_init returned -0x%04x\n",
thread_id, -ret );
goto thread_exit;
}
ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
/* SSLv3 is deprecated, set minimum to TLS 1.0 */
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_1 );
/* RC4 is deprecated, disable it */
ssl_set_arc4_support( &ssl, SSL_ARC4_DISABLED );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_mutexed_debug, stdout );
/* ssl_cache_get() and ssl_cache_set() are thread-safe if
* POLARSSL_THREADING_C is set.
*/
#if defined(POLARSSL_SSL_CACHE_C)
ssl_set_session_cache( &ssl, ssl_cache_get, thread_info->cache,
ssl_cache_set, thread_info->cache );
#endif
ssl_set_ca_chain( &ssl, thread_info->ca_chain, NULL, NULL );
if( ( ret = ssl_set_own_cert( &ssl, thread_info->server_cert, thread_info->server_key ) ) != 0 )
{
polarssl_printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto thread_exit;
}
polarssl_printf( " [ #%d ] ok\n", thread_id );
ssl_set_bio( &ssl, net_recv, &client_fd,
net_send, &client_fd );
polarssl_printf( " [ #%d ] ok\n", thread_id );
/*
* 5. Handshake
*/
polarssl_printf( " [ #%d ] Performing the SSL/TLS handshake\n", thread_id );
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
polarssl_printf( " [ #%d ] failed: ssl_handshake returned -0x%04x\n",
thread_id, -ret );
goto thread_exit;
}
}
polarssl_printf( " [ #%d ] ok\n", thread_id );
/*
* 6. Read the HTTP Request
*/
polarssl_printf( " [ #%d ] < Read from client\n", thread_id );
do
{
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
ret = ssl_read( &ssl, buf, len );
if( ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE )
continue;
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
polarssl_printf( " [ #%d ] connection was closed gracefully\n",
thread_id );
goto thread_exit;
case POLARSSL_ERR_NET_CONN_RESET:
polarssl_printf( " [ #%d ] connection was reset by peer\n",
thread_id );
goto thread_exit;
default:
polarssl_printf( " [ #%d ] ssl_read returned -0x%04x\n",
thread_id, -ret );
goto thread_exit;
}
}
len = ret;
polarssl_printf( " [ #%d ] %d bytes read\n=====\n%s\n=====\n",
thread_id, len, (char *) buf );
if( ret > 0 )
break;
}
while( 1 );
/*
* 7. Write the 200 Response
*/
polarssl_printf( " [ #%d ] > Write to client:\n", thread_id );
len = sprintf( (char *) buf, HTTP_RESPONSE,
ssl_get_ciphersuite( &ssl ) );
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
{
if( ret == POLARSSL_ERR_NET_CONN_RESET )
{
polarssl_printf( " [ #%d ] failed: peer closed the connection\n",
thread_id );
goto thread_exit;
}
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
polarssl_printf( " [ #%d ] failed: ssl_write returned -0x%04x\n",
thread_id, ret );
goto thread_exit;
}
}
len = ret;
polarssl_printf( " [ #%d ] %d bytes written\n=====\n%s\n=====\n",
thread_id, len, (char *) buf );
polarssl_printf( " [ #%d ] . Closing the connection...", thread_id );
while( ( ret = ssl_close_notify( &ssl ) ) < 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ &&
ret != POLARSSL_ERR_NET_WANT_WRITE )
{
polarssl_printf( " [ #%d ] failed: ssl_close_notify returned -0x%04x\n",
thread_id, ret );
goto thread_exit;
}
}
polarssl_printf( " ok\n" );
ret = 0;
thread_exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
polarssl_printf(" [ #%d ] Last error was: -0x%04x - %s\n\n",
thread_id, -ret, error_buf );
}
#endif
net_close( client_fd );
ctr_drbg_free( &ctr_drbg );
ssl_free( &ssl );
thread_info->thread_complete = 1;
return( NULL );
}
int main( int argc, char *argv[] )
{
int ret = 0, len, server_fd, i, written, frags;
unsigned char buf[SSL_MAX_CONTENT_LEN + 1];
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[POLARSSL_PSK_MAX_LEN];
size_t psk_len = 0;
#endif
#if defined(POLARSSL_SSL_ALPN)
const char *alpn_list[10];
#endif
const char *pers = "ssl_client2";
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
ssl_session saved_session;
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt cacert;
x509_crt clicert;
pk_context pkey;
#endif
char *p, *q;
const int *list;
/*
* Make sure memory references are valid.
*/
server_fd = 0;
memset( &ssl, 0, sizeof( ssl_context ) );
memset( &saved_session, 0, sizeof( ssl_session ) );
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt_init( &cacert );
x509_crt_init( &clicert );
pk_init( &pkey );
#endif
#if defined(POLARSSL_SSL_ALPN)
memset( (void * ) alpn_list, 0, sizeof( alpn_list ) );
#endif
if( argc == 0 )
{
usage:
if( ret == 0 )
ret = 1;
printf( USAGE );
list = ssl_list_ciphersuites();
while( *list )
{
printf(" %-42s", ssl_get_ciphersuite_name( *list ) );
list++;
if( !*list )
break;
printf(" %s\n", ssl_get_ciphersuite_name( *list ) );
list++;
}
printf("\n");
goto exit;
}
opt.server_name = DFL_SERVER_NAME;
opt.server_addr = DFL_SERVER_ADDR;
opt.server_port = DFL_SERVER_PORT;
opt.debug_level = DFL_DEBUG_LEVEL;
opt.nbio = DFL_NBIO;
opt.request_page = DFL_REQUEST_PAGE;
opt.request_size = DFL_REQUEST_SIZE;
opt.ca_file = DFL_CA_FILE;
opt.ca_path = DFL_CA_PATH;
opt.crt_file = DFL_CRT_FILE;
opt.key_file = DFL_KEY_FILE;
opt.psk = DFL_PSK;
opt.psk_identity = DFL_PSK_IDENTITY;
opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
opt.renegotiation = DFL_RENEGOTIATION;
opt.allow_legacy = DFL_ALLOW_LEGACY;
opt.renegotiate = DFL_RENEGOTIATE;
opt.min_version = DFL_MIN_VERSION;
opt.max_version = DFL_MAX_VERSION;
opt.auth_mode = DFL_AUTH_MODE;
opt.mfl_code = DFL_MFL_CODE;
opt.trunc_hmac = DFL_TRUNC_HMAC;
opt.reconnect = DFL_RECONNECT;
opt.reco_delay = DFL_RECO_DELAY;
opt.tickets = DFL_TICKETS;
opt.alpn_string = DFL_ALPN_STRING;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "server_name" ) == 0 )
opt.server_name = q;
else if( strcmp( p, "server_addr" ) == 0 )
opt.server_addr = q;
else if( strcmp( p, "server_port" ) == 0 )
{
opt.server_port = atoi( q );
if( opt.server_port < 1 || opt.server_port > 65535 )
goto usage;
}
else if( strcmp( p, "debug_level" ) == 0 )
{
opt.debug_level = atoi( q );
if( opt.debug_level < 0 || opt.debug_level > 65535 )
goto usage;
}
else if( strcmp( p, "nbio" ) == 0 )
{
opt.nbio = atoi( q );
if( opt.nbio < 0 || opt.nbio > 2 )
goto usage;
}
else if( strcmp( p, "request_page" ) == 0 )
opt.request_page = q;
else if( strcmp( p, "request_size" ) == 0 )
{
opt.request_size = atoi( q );
if( opt.request_size < 0 || opt.request_size > SSL_MAX_CONTENT_LEN )
goto usage;
}
else if( strcmp( p, "ca_file" ) == 0 )
opt.ca_file = q;
else if( strcmp( p, "ca_path" ) == 0 )
opt.ca_path = q;
else if( strcmp( p, "crt_file" ) == 0 )
opt.crt_file = q;
else if( strcmp( p, "key_file" ) == 0 )
opt.key_file = q;
else if( strcmp( p, "psk" ) == 0 )
opt.psk = q;
else if( strcmp( p, "psk_identity" ) == 0 )
opt.psk_identity = q;
else if( strcmp( p, "force_ciphersuite" ) == 0 )
{
opt.force_ciphersuite[0] = ssl_get_ciphersuite_id( q );
if( opt.force_ciphersuite[0] == 0 )
{
ret = 2;
goto usage;
}
opt.force_ciphersuite[1] = 0;
}
else if( strcmp( p, "renegotiation" ) == 0 )
{
opt.renegotiation = (atoi( q )) ? SSL_RENEGOTIATION_ENABLED :
SSL_RENEGOTIATION_DISABLED;
}
else if( strcmp( p, "allow_legacy" ) == 0 )
{
opt.allow_legacy = atoi( q );
if( opt.allow_legacy < 0 || opt.allow_legacy > 1 )
goto usage;
}
else if( strcmp( p, "renegotiate" ) == 0 )
{
opt.renegotiate = atoi( q );
if( opt.renegotiate < 0 || opt.renegotiate > 1 )
goto usage;
}
else if( strcmp( p, "reconnect" ) == 0 )
{
opt.reconnect = atoi( q );
if( opt.reconnect < 0 || opt.reconnect > 2 )
goto usage;
}
else if( strcmp( p, "reco_delay" ) == 0 )
{
opt.reco_delay = atoi( q );
if( opt.reco_delay < 0 )
goto usage;
}
else if( strcmp( p, "tickets" ) == 0 )
{
opt.tickets = atoi( q );
if( opt.tickets < 0 || opt.tickets > 2 )
goto usage;
}
else if( strcmp( p, "alpn" ) == 0 )
{
opt.alpn_string = q;
}
else if( strcmp( p, "min_version" ) == 0 )
{
if( strcmp( q, "ssl3" ) == 0 )
opt.min_version = SSL_MINOR_VERSION_0;
else if( strcmp( q, "tls1" ) == 0 )
opt.min_version = SSL_MINOR_VERSION_1;
else if( strcmp( q, "tls1_1" ) == 0 )
opt.min_version = SSL_MINOR_VERSION_2;
else if( strcmp( q, "tls1_2" ) == 0 )
opt.min_version = SSL_MINOR_VERSION_3;
else
goto usage;
}
else if( strcmp( p, "max_version" ) == 0 )
{
if( strcmp( q, "ssl3" ) == 0 )
opt.max_version = SSL_MINOR_VERSION_0;
else if( strcmp( q, "tls1" ) == 0 )
opt.max_version = SSL_MINOR_VERSION_1;
else if( strcmp( q, "tls1_1" ) == 0 )
opt.max_version = SSL_MINOR_VERSION_2;
else if( strcmp( q, "tls1_2" ) == 0 )
opt.max_version = SSL_MINOR_VERSION_3;
else
goto usage;
}
else if( strcmp( p, "force_version" ) == 0 )
{
if( strcmp( q, "ssl3" ) == 0 )
{
opt.min_version = SSL_MINOR_VERSION_0;
opt.max_version = SSL_MINOR_VERSION_0;
}
else if( strcmp( q, "tls1" ) == 0 )
{
opt.min_version = SSL_MINOR_VERSION_1;
opt.max_version = SSL_MINOR_VERSION_1;
}
else if( strcmp( q, "tls1_1" ) == 0 )
{
opt.min_version = SSL_MINOR_VERSION_2;
opt.max_version = SSL_MINOR_VERSION_2;
}
else if( strcmp( q, "tls1_2" ) == 0 )
{
opt.min_version = SSL_MINOR_VERSION_3;
opt.max_version = SSL_MINOR_VERSION_3;
}
else
goto usage;
}
else if( strcmp( p, "auth_mode" ) == 0 )
{
if( strcmp( q, "none" ) == 0 )
opt.auth_mode = SSL_VERIFY_NONE;
else if( strcmp( q, "optional" ) == 0 )
opt.auth_mode = SSL_VERIFY_OPTIONAL;
else if( strcmp( q, "required" ) == 0 )
opt.auth_mode = SSL_VERIFY_REQUIRED;
else
goto usage;
}
else if( strcmp( p, "max_frag_len" ) == 0 )
{
if( strcmp( q, "512" ) == 0 )
opt.mfl_code = SSL_MAX_FRAG_LEN_512;
else if( strcmp( q, "1024" ) == 0 )
opt.mfl_code = SSL_MAX_FRAG_LEN_1024;
else if( strcmp( q, "2048" ) == 0 )
opt.mfl_code = SSL_MAX_FRAG_LEN_2048;
else if( strcmp( q, "4096" ) == 0 )
opt.mfl_code = SSL_MAX_FRAG_LEN_4096;
else
goto usage;
}
else if( strcmp( p, "trunc_hmac" ) == 0 )
{
opt.trunc_hmac = atoi( q );
if( opt.trunc_hmac < 0 || opt.trunc_hmac > 1 )
goto usage;
}
else
goto usage;
}
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( opt.debug_level );
#endif
if( opt.force_ciphersuite[0] > 0 )
{
const ssl_ciphersuite_t *ciphersuite_info;
ciphersuite_info = ssl_ciphersuite_from_id( opt.force_ciphersuite[0] );
if( opt.max_version != -1 &&
ciphersuite_info->min_minor_ver > opt.max_version )
{
printf("forced ciphersuite not allowed with this protocol version\n");
ret = 2;
goto usage;
}
if( opt.min_version != -1 &&
ciphersuite_info->max_minor_ver < opt.min_version )
{
printf("forced ciphersuite not allowed with this protocol version\n");
ret = 2;
goto usage;
}
if( opt.max_version > ciphersuite_info->max_minor_ver )
opt.max_version = ciphersuite_info->max_minor_ver;
if( opt.min_version < ciphersuite_info->min_minor_ver )
opt.min_version = ciphersuite_info->min_minor_ver;
}
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
/*
* Unhexify the pre-shared key if any is given
*/
if( strlen( opt.psk ) )
{
unsigned char c;
size_t j;
if( strlen( opt.psk ) % 2 != 0 )
{
printf("pre-shared key not valid hex\n");
goto exit;
}
psk_len = strlen( opt.psk ) / 2;
for( j = 0; j < strlen( opt.psk ); j += 2 )
{
c = opt.psk[j];
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
{
printf("pre-shared key not valid hex\n");
goto exit;
}
psk[ j / 2 ] = c << 4;
c = opt.psk[j + 1];
if( c >= '0' && c <= '9' )
c -= '0';
else if( c >= 'a' && c <= 'f' )
c -= 'a' - 10;
else if( c >= 'A' && c <= 'F' )
c -= 'A' - 10;
else
{
printf("pre-shared key not valid hex\n");
goto exit;
}
psk[ j / 2 ] |= c;
}
}
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_SSL_ALPN)
if( opt.alpn_string != NULL )
{
p = (char *) opt.alpn_string;
i = 0;
/* Leave room for a final NULL in alpn_list */
while( i < (int) sizeof alpn_list - 1 && *p != '\0' )
{
alpn_list[i++] = p;
/* Terminate the current string and move on to next one */
while( *p != ',' && *p != '\0' )
p++;
if( *p == ',' )
*p++ = '\0';
}
}
#endif /* POLARSSL_SSL_ALPN */
/*
* 0. Initialize the RNG and the session data
*/
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned -0x%x\n", -ret );
goto exit;
}
printf( " ok\n" );
#if defined(POLARSSL_X509_CRT_PARSE_C)
/*
* 1.1. Load the trusted CA
*/
printf( " . Loading the CA root certificate ..." );
fflush( stdout );
#if defined(POLARSSL_FS_IO)
if( strlen( opt.ca_path ) )
if( strcmp( opt.ca_path, "none" ) == 0 )
ret = 0;
else
ret = x509_crt_parse_path( &cacert, opt.ca_path );
else if( strlen( opt.ca_file ) )
if( strcmp( opt.ca_file, "none" ) == 0 )
ret = 0;
else
ret = x509_crt_parse_file( &cacert, opt.ca_file );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = x509_crt_parse( &cacert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
#else
{
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
}
#endif
if( ret < 0 )
{
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok (%d skipped)\n", ret );
/*
* 1.2. Load own certificate and private key
*
* (can be skipped if client authentication is not required)
*/
printf( " . Loading the client cert. and key..." );
fflush( stdout );
#if defined(POLARSSL_FS_IO)
if( strlen( opt.crt_file ) )
if( strcmp( opt.crt_file, "none" ) == 0 )
ret = 0;
else
ret = x509_crt_parse_file( &clicert, opt.crt_file );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = x509_crt_parse( &clicert, (const unsigned char *) test_cli_crt,
strlen( test_cli_crt ) );
#else
{
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
}
#endif
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
#if defined(POLARSSL_FS_IO)
if( strlen( opt.key_file ) )
if( strcmp( opt.key_file, "none" ) == 0 )
ret = 0;
else
ret = pk_parse_keyfile( &pkey, opt.key_file, "" );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = pk_parse_key( &pkey, (const unsigned char *) test_cli_key,
strlen( test_cli_key ), NULL, 0 );
#else
{
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
}
#endif
if( ret != 0 )
{
printf( " failed\n ! pk_parse_key returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
#endif /* POLARSSL_X509_CRT_PARSE_C */
/*
* 2. Start the connection
*/
if( opt.server_addr == NULL)
opt.server_addr = opt.server_name;
printf( " . Connecting to tcp/%s/%-4d...", opt.server_addr,
opt.server_port );
fflush( stdout );
if( ( ret = net_connect( &server_fd, opt.server_addr,
opt.server_port ) ) != 0 )
{
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
goto exit;
}
if( opt.nbio > 0 )
ret = net_set_nonblock( server_fd );
else
ret = net_set_block( server_fd );
if( ret != 0 )
{
printf( " failed\n ! net_set_(non)block() returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 3. Setup stuff
*/
printf( " . Setting up the SSL/TLS structure..." );
fflush( stdout );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_init returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
#if defined(POLARSSL_X509_CRT_PARSE_C)
if( opt.debug_level > 0 )
ssl_set_verify( &ssl, my_verify, NULL );
#endif
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
ssl_set_authmode( &ssl, opt.auth_mode );
#if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
if( ( ret = ssl_set_max_frag_len( &ssl, opt.mfl_code ) ) != 0 )
{
printf( " failed\n ! ssl_set_max_frag_len returned %d\n\n", ret );
goto exit;
}
#endif
#if defined(POLARSSL_SSL_TRUNCATED_HMAC)
if( opt.trunc_hmac != 0 )
if( ( ret = ssl_set_truncated_hmac( &ssl, SSL_TRUNC_HMAC_ENABLED ) ) != 0 )
{
printf( " failed\n ! ssl_set_truncated_hmac returned %d\n\n", ret );
goto exit;
}
#endif
#if defined(POLARSSL_SSL_ALPN)
if( opt.alpn_string != NULL )
if( ( ret = ssl_set_alpn_protocols( &ssl, alpn_list ) ) != 0 )
{
printf( " failed\n ! ssl_set_alpn_protocols returned %d\n\n", ret );
goto exit;
}
#endif
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
if( opt.nbio == 2 )
ssl_set_bio( &ssl, my_recv, &server_fd, my_send, &server_fd );
else
ssl_set_bio( &ssl, net_recv, &server_fd, net_send, &server_fd );
#if defined(POLARSSL_SSL_SESSION_TICKETS)
if( ( ret = ssl_set_session_tickets( &ssl, opt.tickets ) ) != 0 )
{
printf( " failed\n ! ssl_set_session_tickets returned %d\n\n", ret );
goto exit;
}
#endif
if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
ssl_set_renegotiation( &ssl, opt.renegotiation );
ssl_legacy_renegotiation( &ssl, opt.allow_legacy );
#if defined(POLARSSL_X509_CRT_PARSE_C)
if( strcmp( opt.ca_path, "none" ) != 0 &&
strcmp( opt.ca_file, "none" ) != 0 )
{
ssl_set_ca_chain( &ssl, &cacert, NULL, opt.server_name );
}
if( strcmp( opt.crt_file, "none" ) != 0 &&
strcmp( opt.key_file, "none" ) != 0 )
{
if( ( ret = ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
{
printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
}
#endif
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( ( ret = ssl_set_psk( &ssl, psk, psk_len,
(const unsigned char *) opt.psk_identity,
strlen( opt.psk_identity ) ) ) != 0 )
{
printf( " failed\n ! ssl_set_psk returned %d\n\n", ret );
goto exit;
}
#endif
#if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
if( ( ret = ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
{
printf( " failed\n ! ssl_set_hostname returned %d\n\n", ret );
goto exit;
}
#endif
if( opt.min_version != -1 )
ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version );
if( opt.max_version != -1 )
ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version );
/*
* 4. Handshake
*/
printf( " . Performing the SSL/TLS handshake..." );
fflush( stdout );
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n", -ret );
if( ret == POLARSSL_ERR_X509_CERT_VERIFY_FAILED )
printf(
" Unable to verify the server's certificate. "
"Either it is invalid,\n"
" or you didn't set ca_file or ca_path "
"to an appropriate value.\n"
" Alternatively, you may want to use "
"auth_mode=optional for testing purposes.\n" );
printf( "\n" );
goto exit;
}
}
printf( " ok\n [ Protocol is %s ]\n [ Ciphersuite is %s ]\n",
ssl_get_version( &ssl ), ssl_get_ciphersuite( &ssl ) );
#if defined(POLARSSL_SSL_ALPN)
if( opt.alpn_string != NULL )
{
const char *alp = ssl_get_alpn_protocol( &ssl );
printf( " [ Application Layer Protocol is %s ]\n",
alp ? alp : "(none)" );
}
#endif
if( opt.reconnect != 0 )
{
printf(" . Saving session for reuse..." );
fflush( stdout );
if( ( ret = ssl_get_session( &ssl, &saved_session ) ) != 0 )
{
printf( " failed\n ! ssl_get_session returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
}
#if defined(POLARSSL_X509_CRT_PARSE_C)
/*
* 5. Verify the server certificate
*/
printf( " . Verifying peer X.509 certificate..." );
if( ( ret = ssl_get_verify_result( &ssl ) ) != 0 )
{
printf( " failed\n" );
if( ( ret & BADCERT_EXPIRED ) != 0 )
printf( " ! server certificate has expired\n" );
if( ( ret & BADCERT_REVOKED ) != 0 )
printf( " ! server certificate has been revoked\n" );
if( ( ret & BADCERT_CN_MISMATCH ) != 0 )
printf( " ! CN mismatch (expected CN=%s)\n", opt.server_name );
if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
printf( " ! self-signed or not signed by a trusted CA\n" );
printf( "\n" );
}
else
printf( " ok\n" );
if( ssl_get_peer_cert( &ssl ) != NULL )
{
printf( " . Peer certificate information ...\n" );
x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
ssl_get_peer_cert( &ssl ) );
printf( "%s\n", buf );
}
#endif /* POLARSSL_X509_CRT_PARSE_C */
if( opt.renegotiate )
{
/*
* Perform renegotiation (this must be done when the server is waiting
* for input from our side).
*/
printf( " . Performing renegotiation..." );
fflush( stdout );
while( ( ret = ssl_renegotiate( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ &&
ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_renegotiate returned %d\n\n", ret );
goto exit;
}
}
printf( " ok\n" );
}
/*
* 6. Write the GET request
*/
send_request:
printf( " > Write to server:" );
fflush( stdout );
if( strcmp( opt.request_page, "SERVERQUIT" ) == 0 )
len = sprintf( (char *) buf, "%s", opt.request_page );
else
{
size_t tail_len = strlen( GET_REQUEST_END );
len = snprintf( (char *) buf, sizeof(buf) - 1, GET_REQUEST,
opt.request_page );
/* Add padding to GET request to reach opt.request_size in length */
if( opt.request_size != DFL_REQUEST_SIZE &&
len + tail_len < (size_t) opt.request_size )
{
memset( buf + len, 'A', opt.request_size - len - tail_len );
len += opt.request_size - len - tail_len;
}
strncpy( (char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1 );
len += tail_len;
}
/* Truncate if request size is smaller than the "natural" size */
if( opt.request_size != DFL_REQUEST_SIZE &&
len > opt.request_size )
{
len = opt.request_size;
/* Still end with \r\n unless that's really not possible */
if( len >= 2 ) buf[len - 2] = '\r';
if( len >= 1 ) buf[len - 1] = '\n';
}
for( written = 0, frags = 0; written < len; written += ret, frags++ )
{
while( ( ret = ssl_write( &ssl, buf + written, len - written ) ) <= 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_write returned -0x%x\n\n", -ret );
goto exit;
}
}
}
buf[written] = '\0';
printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf );
/*
* 7. Read the HTTP response
*/
printf( " < Read from server:" );
fflush( stdout );
do
{
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
ret = ssl_read( &ssl, buf, len );
if( ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE )
continue;
if( ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY )
break;
if( ret < 0 )
{
printf( "failed\n ! ssl_read returned -0x%x\n\n", -ret );
break;
}
if( ret == 0 )
{
printf("\n\nEOF\n\n");
ssl_close_notify( &ssl );
break;
}
len = ret;
buf[len] = '\0';
printf( " %d bytes read\n\n%s", len, (char *) buf );
}
while( 1 );
if( opt.reconnect != 0 )
{
--opt.reconnect;
net_close( server_fd );
#if defined(POLARSSL_TIMING_C)
if( opt.reco_delay > 0 )
m_sleep( 1000 * opt.reco_delay );
#endif
printf( " . Reconnecting with saved session..." );
fflush( stdout );
if( ( ret = ssl_session_reset( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_session_reset returned -0x%x\n\n", -ret );
goto exit;
}
if( ( ret = ssl_set_session( &ssl, &saved_session ) ) != 0 )
{
printf( " failed\n ! ssl_set_session returned %d\n\n", ret );
goto exit;
}
if( ( ret = net_connect( &server_fd, opt.server_name,
opt.server_port ) ) != 0 )
{
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
goto exit;
}
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ &&
ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
goto exit;
}
}
printf( " ok\n" );
goto send_request;
}
exit:
if( ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY )
ret = 0;
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf("Last error was: -0x%X - %s\n\n", -ret, error_buf );
}
#endif
if( server_fd )
net_close( server_fd );
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt_free( &clicert );
x509_crt_free( &cacert );
pk_free( &pkey );
#endif
ssl_session_free( &saved_session );
ssl_free( &ssl );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
memset( &ssl, 0, sizeof( ssl ) );
#if defined(_WIN32)
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;
return( ret );
}
int main( void )
{
int ret = exit_ok;
int server_fd = -1;
struct sockaddr_in addr;
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt ca;
#endif
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
/*
* 0. Initialize and setup stuff
*/
memset( &ssl, 0, sizeof( ssl_context ) );
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt_init( &ca );
#endif
entropy_init( &entropy );
if( ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers, strlen( pers ) ) != 0 )
{
ret = ssl_init_failed;
goto exit;
}
if( ssl_init( &ssl ) != 0 )
{
ret = ssl_init_failed;
goto exit;
}
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
ssl_set_psk( &ssl, psk, sizeof( psk ),
(const unsigned char *) psk_id, sizeof( psk_id ) - 1 );
#endif
#if defined(POLARSSL_X509_CRT_PARSE_C)
if( x509_crt_parse_der( &ca, ca_cert, sizeof( ca_cert ) ) != 0 )
{
ret = x509_crt_parse_failed;
goto exit;
}
ssl_set_ca_chain( &ssl, &ca, NULL, HOSTNAME );
ssl_set_authmode( &ssl, SSL_VERIFY_REQUIRED );
#endif
/*
* 1. Start the connection
*/
memset( &addr, 0, sizeof( addr ) );
addr.sin_family = AF_INET;
ret = 1; /* for endianness detection */
addr.sin_port = *((char *) &ret) == ret ? PORT_LE : PORT_BE;
addr.sin_addr.s_addr = *((char *) &ret) == ret ? ADDR_LE : ADDR_BE;
ret = 0;
if( ( server_fd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
{
ret = socket_failed;
goto exit;
}
if( connect( server_fd,
(const struct sockaddr *) &addr, sizeof( addr ) ) < 0 )
{
ret = connect_failed;
goto exit;
}
ssl_set_bio( &ssl, net_recv, &server_fd, net_send, &server_fd );
if( ssl_handshake( &ssl ) != 0 )
{
ret = ssl_handshake_failed;
goto exit;
}
/*
* 2. Write the GET request and close the connection
*/
if( ssl_write( &ssl, (const unsigned char *) GET_REQUEST,
sizeof( GET_REQUEST ) - 1 ) <= 0 )
{
ret = ssl_write_failed;
goto exit;
}
ssl_close_notify( &ssl );
exit:
if( server_fd != -1 )
net_close( server_fd );
ssl_free( &ssl );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(POLARSSL_X509_CRT_PARSE_C)
x509_crt_free( &ca );
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int ret = 0;
pk_context key;
char buf[1024];
int i;
char *p, *q;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
const char *pers = "gen_key";
#if defined(POLARSSL_ECP_C)
const ecp_curve_info *curve_info;
#endif
/*
* Set to sane values
*/
pk_init( &key );
memset( buf, 0, sizeof( buf ) );
if( argc == 0 )
{
usage:
ret = 1;
printf( USAGE );
#if defined(POLARSSL_ECP_C)
printf( " availabled ec_curve values:\n" );
curve_info = ecp_curve_list();
printf( " %s (default)\n", curve_info->name );
while( ( ++curve_info )->name != NULL )
printf( " %s\n", curve_info->name );
#endif
goto exit;
}
opt.type = DFL_TYPE;
opt.rsa_keysize = DFL_RSA_KEYSIZE;
opt.ec_curve = DFL_EC_CURVE;
opt.filename = DFL_FILENAME;
opt.format = DFL_FORMAT;
opt.use_dev_random = DFL_USE_DEV_RANDOM;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "type" ) == 0 )
{
if( strcmp( q, "rsa" ) == 0 )
opt.type = POLARSSL_PK_RSA;
else if( strcmp( q, "ec" ) == 0 )
opt.type = POLARSSL_PK_ECKEY;
else
goto usage;
}
else if( strcmp( p, "format" ) == 0 )
{
if( strcmp( q, "pem" ) == 0 )
opt.format = FORMAT_PEM;
else if( strcmp( q, "der" ) == 0 )
opt.format = FORMAT_DER;
else
goto usage;
}
else if( strcmp( p, "rsa_keysize" ) == 0 )
{
opt.rsa_keysize = atoi( q );
if( opt.rsa_keysize < 1024 || opt.rsa_keysize > 8192 )
goto usage;
}
else if( strcmp( p, "ec_curve" ) == 0 )
{
if( ( curve_info = ecp_curve_info_from_name( q ) ) == NULL )
goto usage;
opt.ec_curve = curve_info->grp_id;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "use_dev_random" ) == 0 )
{
opt.use_dev_random = atoi( q );
if( opt.use_dev_random < 0 || opt.use_dev_random > 1 )
goto usage;
}
else
goto usage;
}
printf( "\n . Seeding the random number generator..." );
fflush( stdout );
entropy_init( &entropy );
#if !defined(_WIN32) && defined(POLARSSL_FS_IO)
if( opt.use_dev_random )
{
if( ( ret = entropy_add_source( &entropy, dev_random_entropy_poll,
NULL, DEV_RANDOM_THRESHOLD ) ) != 0 )
{
printf( " failed\n ! entropy_add_source returned -0x%04x\n", -ret );
goto exit;
}
printf("\n Using /dev/random, so can take a long time! " );
fflush( stdout );
}
#endif /* !_WIN32 && POLARSSL_FS_IO */
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned -0x%04x\n", -ret );
goto exit;
}
/*
* 1.1. Generate the key
*/
printf( "\n . Generating the private key ..." );
fflush( stdout );
if( ( ret = pk_init_ctx( &key, pk_info_from_type( opt.type ) ) ) != 0 )
{
printf( " failed\n ! pk_init_ctx returned -0x%04x", -ret );
goto exit;
}
#if defined(POLARSSL_RSA_C) && defined(POLARSSL_GENPRIME)
if( opt.type == POLARSSL_PK_RSA )
{
ret = rsa_gen_key( pk_rsa( key ), ctr_drbg_random, &ctr_drbg,
opt.rsa_keysize, 65537 );
if( ret != 0 )
{
printf( " failed\n ! rsa_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* POLARSSL_RSA_C */
#if defined(POLARSSL_ECP_C)
if( opt.type == POLARSSL_PK_ECKEY )
{
ret = ecp_gen_key( opt.ec_curve, pk_ec( key ),
ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
printf( " failed\n ! rsa_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* POLARSSL_ECP_C */
{
printf( " failed\n ! key type not supported\n" );
goto exit;
}
/*
* 1.2 Print the key
*/
printf( " ok\n . Key information:\n" );
#if defined(POLARSSL_RSA_C)
if( pk_get_type( &key ) == POLARSSL_PK_RSA )
{
rsa_context *rsa = pk_rsa( key );
mpi_write_file( "N: ", &rsa->N, 16, NULL );
mpi_write_file( "E: ", &rsa->E, 16, NULL );
mpi_write_file( "D: ", &rsa->D, 16, NULL );
mpi_write_file( "P: ", &rsa->P, 16, NULL );
mpi_write_file( "Q: ", &rsa->Q, 16, NULL );
mpi_write_file( "DP: ", &rsa->DP, 16, NULL );
mpi_write_file( "DQ: ", &rsa->DQ, 16, NULL );
mpi_write_file( "QP: ", &rsa->QP, 16, NULL );
}
else
#endif
#if defined(POLARSSL_ECP_C)
if( pk_get_type( &key ) == POLARSSL_PK_ECKEY )
{
ecp_keypair *ecp = pk_ec( key );
printf( "curve: %s\n",
ecp_curve_info_from_grp_id( ecp->grp.id )->name );
mpi_write_file( "X_Q: ", &ecp->Q.X, 16, NULL );
mpi_write_file( "Y_Q: ", &ecp->Q.Y, 16, NULL );
mpi_write_file( "D: ", &ecp->d , 16, NULL );
}
else
#endif
printf(" ! key type not supported\n");
write_private_key( &key, opt.filename );
exit:
if( ret != 0 && ret != 1)
{
#ifdef POLARSSL_ERROR_C
polarssl_strerror( ret, buf, sizeof( buf ) );
printf( " - %s\n", buf );
#else
printf("\n");
#endif
}
pk_free( &key );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
int main( int argc, char *argv[] )
{
int keysize, i;
unsigned char tmp[200];
char title[TITLE_LEN];
todo_list todo;
if( argc == 1 )
memset( &todo, 1, sizeof( todo ) );
else
{
memset( &todo, 0, sizeof( todo ) );
for( i = 1; i < argc; i++ )
{
if( strcmp( argv[i], "md4" ) == 0 )
todo.md4 = 1;
else if( strcmp( argv[i], "md5" ) == 0 )
todo.md5 = 1;
else if( strcmp( argv[i], "ripemd160" ) == 0 )
todo.ripemd160 = 1;
else if( strcmp( argv[i], "sha1" ) == 0 )
todo.sha1 = 1;
else if( strcmp( argv[i], "sha256" ) == 0 )
todo.sha256 = 1;
else if( strcmp( argv[i], "sha512" ) == 0 )
todo.sha512 = 1;
else if( strcmp( argv[i], "arc4" ) == 0 )
todo.arc4 = 1;
else if( strcmp( argv[i], "des3" ) == 0 )
todo.des3 = 1;
else if( strcmp( argv[i], "des" ) == 0 )
todo.des = 1;
else if( strcmp( argv[i], "aes_cbc" ) == 0 )
todo.aes_cbc = 1;
else if( strcmp( argv[i], "aes_gcm" ) == 0 )
todo.aes_gcm = 1;
else if( strcmp( argv[i], "aes_ccm" ) == 0 )
todo.aes_ccm = 1;
else if( strcmp( argv[i], "camellia" ) == 0 )
todo.camellia = 1;
else if( strcmp( argv[i], "blowfish" ) == 0 )
todo.blowfish = 1;
else if( strcmp( argv[i], "havege" ) == 0 )
todo.havege = 1;
else if( strcmp( argv[i], "ctr_drbg" ) == 0 )
todo.ctr_drbg = 1;
else if( strcmp( argv[i], "hmac_drbg" ) == 0 )
todo.hmac_drbg = 1;
else if( strcmp( argv[i], "rsa" ) == 0 )
todo.rsa = 1;
else if( strcmp( argv[i], "dhm" ) == 0 )
todo.dhm = 1;
else if( strcmp( argv[i], "ecdsa" ) == 0 )
todo.ecdsa = 1;
else if( strcmp( argv[i], "ecdh" ) == 0 )
todo.ecdh = 1;
else
{
polarssl_printf( "Unrecognized option: %s\n", argv[i] );
polarssl_printf( "Available options: " OPTIONS );
}
}
}
polarssl_printf( "\n" );
memset( buf, 0xAA, sizeof( buf ) );
memset( tmp, 0xBB, sizeof( tmp ) );
#if defined(POLARSSL_MD4_C)
if( todo.md4 )
TIME_AND_TSC( "MD4", md4( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_MD5_C)
if( todo.md5 )
TIME_AND_TSC( "MD5", md5( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_RIPEMD160_C)
if( todo.ripemd160 )
TIME_AND_TSC( "RIPEMD160", ripemd160( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_SHA1_C)
if( todo.sha1 )
TIME_AND_TSC( "SHA-1", sha1( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_SHA256_C)
if( todo.sha256 )
TIME_AND_TSC( "SHA-256", sha256( buf, BUFSIZE, tmp, 0 ) );
#endif
#if defined(POLARSSL_SHA512_C)
if( todo.sha512 )
TIME_AND_TSC( "SHA-512", sha512( buf, BUFSIZE, tmp, 0 ) );
#endif
#if defined(POLARSSL_ARC4_C)
if( todo.arc4 )
{
arc4_context arc4;
arc4_init( &arc4 );
arc4_setup( &arc4, tmp, 32 );
TIME_AND_TSC( "ARC4", arc4_crypt( &arc4, BUFSIZE, buf, buf ) );
arc4_free( &arc4 );
}
#endif
#if defined(POLARSSL_DES_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.des3 )
{
des3_context des3;
des3_init( &des3 );
des3_set3key_enc( &des3, tmp );
TIME_AND_TSC( "3DES",
des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
des3_free( &des3 );
}
if( todo.des )
{
des_context des;
des_init( &des );
des_setkey_enc( &des, tmp );
TIME_AND_TSC( "DES",
des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
des_free( &des );
}
#endif
#if defined(POLARSSL_AES_C)
#if defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.aes_cbc )
{
aes_context aes;
aes_init( &aes );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
aes_setkey_enc( &aes, tmp, keysize );
TIME_AND_TSC( title,
aes_crypt_cbc( &aes, AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
}
aes_free( &aes );
}
#endif
#if defined(POLARSSL_GCM_C)
if( todo.aes_gcm )
{
gcm_context gcm;
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-GCM-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
gcm_init( &gcm, POLARSSL_CIPHER_ID_AES, tmp, keysize );
TIME_AND_TSC( title,
gcm_crypt_and_tag( &gcm, GCM_ENCRYPT, BUFSIZE, tmp,
12, NULL, 0, buf, buf, 16, tmp ) );
gcm_free( &gcm );
}
}
#endif
#if defined(POLARSSL_CCM_C)
if( todo.aes_ccm )
{
ccm_context ccm;
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-CCM-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
ccm_init( &ccm, POLARSSL_CIPHER_ID_AES, tmp, keysize );
TIME_AND_TSC( title,
ccm_encrypt_and_tag( &ccm, BUFSIZE, tmp,
12, NULL, 0, buf, buf, tmp, 16 ) );
ccm_free( &ccm );
}
}
#endif
#endif
#if defined(POLARSSL_CAMELLIA_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.camellia )
{
camellia_context camellia;
camellia_init( &camellia );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "CAMELLIA-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
camellia_setkey_enc( &camellia, tmp, keysize );
TIME_AND_TSC( title,
camellia_crypt_cbc( &camellia, CAMELLIA_ENCRYPT,
BUFSIZE, tmp, buf, buf ) );
}
camellia_free( &camellia );
}
#endif
#if defined(POLARSSL_BLOWFISH_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.blowfish )
{
blowfish_context blowfish;
blowfish_init( &blowfish );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "BLOWFISH-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
blowfish_setkey( &blowfish, tmp, keysize );
TIME_AND_TSC( title,
blowfish_crypt_cbc( &blowfish, BLOWFISH_ENCRYPT, BUFSIZE,
tmp, buf, buf ) );
}
blowfish_free( &blowfish );
}
#endif
#if defined(POLARSSL_HAVEGE_C)
if( todo.havege )
{
havege_state hs;
havege_init( &hs );
TIME_AND_TSC( "HAVEGE", havege_random( &hs, buf, BUFSIZE ) );
havege_free( &hs );
}
#endif
#if defined(POLARSSL_CTR_DRBG_C)
if( todo.ctr_drbg )
{
ctr_drbg_context ctr_drbg;
if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
exit(1);
TIME_AND_TSC( "CTR_DRBG (NOPR)",
if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
exit(1) );
if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
exit(1);
ctr_drbg_set_prediction_resistance( &ctr_drbg, CTR_DRBG_PR_ON );
TIME_AND_TSC( "CTR_DRBG (PR)",
if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
exit(1) );
ctr_drbg_free( &ctr_drbg );
}
int main( int argc, char *argv[] )
{
FILE *f;
int ret = 1;
pk_context pk;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
unsigned char hash[20];
unsigned char buf[POLARSSL_MPI_MAX_SIZE];
char filename[512];
const char *pers = "pk_sign";
size_t olen = 0;
entropy_init( &entropy );
pk_init( &pk );
if( argc != 3 )
{
polarssl_printf( "usage: pk_sign <key_file> <filename>\n" );
#if defined(_WIN32)
polarssl_printf( "\n" );
#endif
goto exit;
}
polarssl_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
polarssl_printf( " failed\n ! ctr_drbg_init returned -0x%04x\n", -ret );
goto exit;
}
polarssl_printf( "\n . Reading private key from '%s'", argv[1] );
fflush( stdout );
if( ( ret = pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
{
ret = 1;
polarssl_printf( " failed\n ! Could not open '%s'\n", argv[1] );
goto exit;
}
/*
* Compute the SHA-1 hash of the input file,
* then calculate the signature of the hash.
*/
polarssl_printf( "\n . Generating the SHA-1 signature" );
fflush( stdout );
if( ( ret = sha1_file( argv[2], hash ) ) != 0 )
{
polarssl_printf( " failed\n ! Could not open or read %s\n\n", argv[2] );
goto exit;
}
if( ( ret = pk_sign( &pk, POLARSSL_MD_SHA1, hash, 0, buf, &olen,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
polarssl_printf( " failed\n ! pk_sign returned -0x%04x\n", -ret );
goto exit;
}
/*
* Write the signature into <filename>-sig.txt
*/
snprintf( filename, sizeof(filename), "%s.sig", argv[2] );
if( ( f = fopen( filename, "wb+" ) ) == NULL )
{
ret = 1;
polarssl_printf( " failed\n ! Could not create %s\n\n", filename );
goto exit;
}
if( fwrite( buf, 1, olen, f ) != olen )
{
polarssl_printf( "failed\n ! fwrite failed\n\n" );
goto exit;
}
fclose( f );
polarssl_printf( "\n . Done (created \"%s\")\n\n", filename );
exit:
pk_free( &pk );
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(POLARSSL_ERROR_C)
polarssl_strerror( ret, (char *) buf, sizeof(buf) );
polarssl_printf( " ! Last error was: %s\n", buf );
#endif
#if defined(_WIN32)
polarssl_printf( " + Press Enter to exit this program.\n" );
fflush( stdout );
getchar();
#endif
return( ret );
}
int main( void )
{
int ret, len;
int listen_fd;
int client_fd = -1;
unsigned char buf[1024];
const char *pers = "dtls_server";
unsigned char client_ip[16] = { 0 };
ssl_cookie_ctx cookie_ctx;
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_crt srvcert;
pk_context pkey;
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_context cache;
#endif
memset( &ssl, 0, sizeof(ssl_context) );
ssl_cookie_init( &cookie_ctx );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_init( &cache );
#endif
x509_crt_init( &srvcert );
pk_init( &pkey );
entropy_init( &entropy );
#if defined(POLARSSL_DEBUG_C)
debug_set_threshold( DEBUG_LEVEL );
#endif
/*
* 1. Load the certificates and private RSA key
*/
printf( "\n . Loading the server cert. and key..." );
fflush( stdout );
/*
* This demonstration program uses embedded test certificates.
* Instead, you may want to use x509_crt_parse_file() to read the
* server and CA certificates, as well as pk_parse_keyfile().
*/
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_srv_crt,
strlen( test_srv_crt ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = x509_crt_parse( &srvcert, (const unsigned char *) test_ca_list,
strlen( test_ca_list ) );
if( ret != 0 )
{
printf( " failed\n ! x509_crt_parse returned %d\n\n", ret );
goto exit;
}
ret = pk_parse_key( &pkey, (const unsigned char *) test_srv_key,
strlen( test_srv_key ), NULL, 0 );
if( ret != 0 )
{
printf( " failed\n ! pk_parse_key returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Setup the "listening" UDP socket
*/
printf( " . Bind on udp/*/4433 ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_UDP ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 3. Seed the RNG
*/
printf( " . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned %d\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 4. Setup stuff
*/
printf( " . Setting up the DTLS data..." );
fflush( stdout );
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
printf( " failed\n ! ssl_init returned %d\n\n", ret );
goto exit;
}
ssl_set_endpoint( &ssl, SSL_IS_SERVER );
ssl_set_transport( &ssl, SSL_TRANSPORT_DATAGRAM );
ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
ssl_set_dbg( &ssl, my_debug, stdout );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_set_session_cache( &ssl, ssl_cache_get, &cache,
ssl_cache_set, &cache );
#endif
ssl_set_ca_chain( &ssl, srvcert.next, NULL, NULL );
if( ( ret = ssl_set_own_cert( &ssl, &srvcert, &pkey ) ) != 0 )
{
printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
goto exit;
}
if( ( ret = ssl_cookie_setup( &cookie_ctx,
ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
printf( " failed\n ! ssl_cookie_setup returned %d\n\n", ret );
goto exit;
}
ssl_set_dtls_cookies( &ssl, ssl_cookie_write, ssl_cookie_check,
&cookie_ctx );
printf( " ok\n" );
reset:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf("Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( client_fd != -1 )
net_close( client_fd );
ssl_session_reset( &ssl );
/*
* 3. Wait until a client connects
*/
client_fd = -1;
printf( " . Waiting for a remote connection ..." );
fflush( stdout );
if( ( ret = net_accept( listen_fd, &client_fd, client_ip ) ) != 0 )
{
printf( " failed\n ! net_accept returned %d\n\n", ret );
goto exit;
}
/* With UDP, bind_fd is hijacked by client_fd, so bind a new one */
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_UDP ) ) != 0 )
{
printf( " failed\n ! net_bind returned -0x%x\n\n", -ret );
goto exit;
}
/* For HelloVerifyRequest cookies */
if( ( ret = ssl_set_client_transport_id( &ssl, client_ip,
sizeof( client_ip ) ) ) != 0 )
{
printf( " failed\n ! "
"ssl_set_client_tranport_id() returned -0x%x\n\n", -ret );
goto exit;
}
ssl_set_bio_timeout( &ssl, &client_fd,
net_send, net_recv, net_recv_timeout,
READ_TIMEOUT_MS );
printf( " ok\n" );
/*
* 5. Handshake
*/
printf( " . Performing the DTLS handshake..." );
fflush( stdout );
do ret = ssl_handshake( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret == POLARSSL_ERR_SSL_HELLO_VERIFY_REQUIRED )
{
printf( " hello verification requested\n" );
ret = 0;
goto reset;
}
else if( ret != 0 )
{
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
goto reset;
}
printf( " ok\n" );
/*
* 6. Read the echo Request
*/
printf( " < Read from client:" );
fflush( stdout );
len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) );
do ret = ssl_read( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret <= 0 )
{
switch( ret )
{
case POLARSSL_ERR_NET_TIMEOUT:
printf( " timeout\n\n" );
goto reset;
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
printf( " connection was closed gracefully\n" );
ret = 0;
goto close_notify;
default:
printf( " ssl_read returned -0x%x\n\n", -ret );
goto reset;
}
}
len = ret;
printf( " %d bytes read\n\n%s\n\n", len, buf );
/*
* 7. Write the 200 Response
*/
printf( " > Write to client:" );
fflush( stdout );
do ret = ssl_write( &ssl, buf, len );
while( ret == POLARSSL_ERR_NET_WANT_READ ||
ret == POLARSSL_ERR_NET_WANT_WRITE );
if( ret < 0 )
{
printf( " failed\n ! ssl_write returned %d\n\n", ret );
goto exit;
}
len = ret;
printf( " %d bytes written\n\n%s\n\n", len, buf );
/*
* 8. Done, cleanly close the connection
*/
close_notify:
printf( " . Closing the connection..." );
/* No error checking, the connection might be closed already */
do ret = ssl_close_notify( &ssl );
while( ret == POLARSSL_ERR_NET_WANT_WRITE );
ret = 0;
printf( " done\n" );
goto reset;
/*
* Final clean-ups and exit
*/
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
polarssl_strerror( ret, error_buf, 100 );
printf( "Last error was: %d - %s\n\n", ret, error_buf );
}
#endif
if( client_fd != -1 )
net_close( client_fd );
x509_crt_free( &srvcert );
pk_free( &pkey );
ssl_free( &ssl );
ssl_cookie_free( &cookie_ctx );
#if defined(POLARSSL_SSL_CACHE_C)
ssl_cache_free( &cache );
#endif
ctr_drbg_free( &ctr_drbg );
entropy_free( &entropy );
#if defined(_WIN32)
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;
return( ret );
}
