void gtget_ssl_init(connection_t * conn)
{
char *clientcert = NULL;
char *clientkey = NULL;
const char *pers = "gtget";
sslparam_t *ssl = calloc(1, sizeof(sslparam_t));
if (!(conn->flags & GTGET_FLAG_INSECURE)) {
char *cacertfile = alloca(strlen(conn->remote->host) + 5);
char *servercert = NULL;
strcpy(cacertfile, conn->remote->host);
strcat(cacertfile, ".pem");
if (!(servercert = tryopen_alt(conn, conn->caFile, cacertfile)))
servercert = tryopen("cacerts.pem");
if (!(servercert))
die(conn, "can't open cacert", NULL);
if (x509_crt_parse_file(&ssl->cacert, servercert))
die(conn, "error reading cacert", servercert);
}
/* read and parse the client certificate if provided */
if ((clientcert = tryopen_alt(conn, conn->ccFile, "clientcert.pem"))) {
if (!(clientkey = tryopen_alt(conn, conn->ckFile, "clientkey.pem")))
clientkey = clientcert;
if (x509_crt_parse_file(&ssl->clicert, clientcert)) {
die(conn, "error reading client certificate", clientcert);
if (clientkey && pk_parse_public_keyfile(&ssl->pk, clientkey))
die(conn, "error reading client key", clientkey);
}
write2f("using client cert: %s\n", clientcert);
write2f("using client key: %s\n", clientkey);
}
entropy_init(&ssl->entropy);
if (0 != (ctr_drbg_init(&ssl->ctr_drbg, entropy_func, &ssl->entropy,
(const unsigned char *)pers, strlen(pers))))
die(conn, "Seeding the random number generator failed", NULL);
if (ssl_init(&ssl->ssl))
die(conn, "error initializing SSL", NULL);
ssl_set_endpoint(&ssl->ssl, SSL_IS_CLIENT);
if ((conn->flags & GTGET_FLAG_INSECURE)) {
ssl_set_authmode(&ssl->ssl, SSL_VERIFY_NONE);
}
ssl_set_ca_chain(&ssl->ssl, &ssl->cacert, NULL, conn->remote->host);
ssl_set_authmode(&ssl->ssl, SSL_VERIFY_OPTIONAL);
ssl_set_verify(&ssl->ssl, verify_cb, conn);
ssl_set_ciphersuites(&ssl->ssl, ssl_list_ciphersuites());
ssl_set_session(&ssl->ssl, &ssl->ssn);
ssl_set_rng(&ssl->ssl, ctr_drbg_random, &ssl->ctr_drbg);
conn->ssl = ssl;
}
int32_t bctbx_ssl_context_setup(bctbx_ssl_context_t *ssl_ctx, bctbx_ssl_config_t *ssl_config) {
/* Check validity of context and config */
if (ssl_config == NULL) {
return BCTBX_ERROR_INVALID_SSL_CONFIG;
}
if (ssl_ctx == NULL) {
return BCTBX_ERROR_INVALID_SSL_CONTEXT;
}
/* apply all valids settings to the ssl_context */
if (ssl_config->endpoint != BCTBX_SSL_UNSET) {
ssl_set_endpoint(&(ssl_ctx->ssl_ctx), ssl_config->endpoint);
}
if (ssl_config->authmode != BCTBX_SSL_UNSET) {
ssl_set_authmode(&(ssl_ctx->ssl_ctx), ssl_config->authmode);
}
if (ssl_config->rng_function != NULL) {
ssl_set_rng(&(ssl_ctx->ssl_ctx), ssl_config->rng_function, ssl_config->rng_context);
}
if (ssl_config->callback_verify_function != NULL) {
ssl_set_verify(&(ssl_ctx->ssl_ctx), ssl_config->callback_verify_function, ssl_config->callback_verify_data);
}
if (ssl_config->callback_cli_cert_function != NULL) {
ssl_ctx->callback_cli_cert_function = ssl_config->callback_cli_cert_function;
ssl_ctx->callback_cli_cert_data = ssl_config->callback_cli_cert_data;
}
if (ssl_config->ca_chain != NULL) {
ssl_set_ca_chain(&(ssl_ctx->ssl_ctx), ssl_config->ca_chain, NULL, ssl_ctx->cn);
}
if (ssl_config->own_cert != NULL && ssl_config->own_cert_pk != NULL) {
ssl_set_own_cert(&(ssl_ctx->ssl_ctx) , ssl_config->own_cert , ssl_config->own_cert_pk);
}
return 0;
}
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;
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 );
pk_init( &pkey );
if( argc == 0 )
{
usage:
printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.ca_file = DFL_CA_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, "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
*/
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 )
{
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok (%d skipped)\n", ret );
if( opt.mode == MODE_FILE )
{
x509_crt crt;
x509_crt *cur = &crt;
x509_crt_init( &crt );
/*
* 1.1. Load the certificate(s)
*/
printf( "\n . Loading the certificate(s) ..." );
fflush( stdout );
ret = x509_crt_parse_file( &crt, opt.filename );
if( ret < 0 )
{
printf( " failed\n ! x509_crt_parse_file returned %d\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
if( opt.permissive == 0 && ret > 0 )
{
printf( " failed\n ! x509_crt_parse failed to parse %d certificates\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
printf( " ok\n" );
/*
* 1.2 Print the certificate(s)
*/
while( cur != NULL )
{
printf( " . Peer certificate information ...\n" );
ret = x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
cur );
if( ret == -1 )
{
printf( " failed\n ! x509_crt_info returned %d\n\n", ret );
x509_crt_free( &crt );
goto exit;
}
printf( "%s\n", buf );
cur = cur->next;
}
/*
* 1.3 Verify the certificate
*/
if( verify )
{
printf( " . Verifying X.509 certificate..." );
if( ( ret = x509_crt_verify( &crt, &cacert, NULL, NULL, &flags,
my_verify, NULL ) ) != 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" );
}
x509_crt_free( &crt );
}
else if( opt.mode == MODE_SSL )
{
/*
* 1. 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 %d\n", ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Start the connection
*/
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 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;
}
/*
* 3. Setup stuff
*/
if( ( ret = ssl_init( &ssl ) ) != 0 )
{
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 );
ssl_set_own_cert( &ssl, &clicert, &pkey );
#if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
ssl_set_hostname( &ssl, opt.server_name );
#endif
/*
* 4. Handshake
*/
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 );
ssl_free( &ssl );
goto exit;
}
}
printf( " ok\n" );
/*
* 5. Print the certificate
*/
printf( " . Peer certificate information ...\n" );
ret = x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
ssl.session->peer_cert );
if( ret == -1 )
{
printf( " failed\n ! x509_crt_info returned %d\n\n", ret );
ssl_free( &ssl );
goto exit;
}
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 );
pk_free( &pkey );
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 = 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( int argc, char *argv[] )
{
int ret = 0, len, server_fd;
unsigned char buf[1024];
char *pers = "ssl_client2";
entropy_context entropy;
ctr_drbg_context ctr_drbg;
ssl_context ssl;
x509_cert cacert;
x509_cert clicert;
rsa_context rsa;
int i;
char *p, *q;
const int *list;
/*
* Make sure memory references are valid.
*/
server_fd = 0;
memset( &ssl, 0, sizeof( ssl_context ) );
memset( &cacert, 0, sizeof( x509_cert ) );
memset( &clicert, 0, sizeof( x509_cert ) );
memset( &rsa, 0, sizeof( rsa_context ) );
if( argc == 0 )
{
usage:
if( ret == 0 )
ret = 1;
printf( USAGE );
list = ssl_list_ciphersuites();
while( *list )
{
printf(" %s\n", ssl_get_ciphersuite_name( *list ) );
list++;
}
printf("\n");
goto exit;
}
opt.server_name = DFL_SERVER_NAME;
opt.server_port = DFL_SERVER_PORT;
opt.debug_level = DFL_DEBUG_LEVEL;
opt.request_page = DFL_REQUEST_PAGE;
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.force_ciphersuite[0]= DFL_FORCE_CIPHER;
opt.renegotiation = DFL_RENEGOTIATION;
opt.allow_legacy = DFL_ALLOW_LEGACY;
opt.min_version = DFL_MIN_VERSION;
opt.max_version = DFL_MAX_VERSION;
opt.auth_mode = DFL_AUTH_MODE;
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_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, "request_page" ) == 0 )
opt.request_page = q;
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, "force_ciphersuite" ) == 0 )
{
opt.force_ciphersuite[0] = -1;
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, "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
goto usage;
}
/*
* 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,
(unsigned char *) pers, strlen( pers ) ) ) != 0 )
{
printf( " failed\n ! ctr_drbg_init returned -0x%x\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 1.1. Load the trusted CA
*/
printf( " . Loading the CA root certificate ..." );
fflush( stdout );
#if defined(POLARSSL_FS_IO)
if( strlen( opt.ca_path ) )
ret = x509parse_crtpath( &cacert, opt.ca_path );
else if( strlen( opt.ca_file ) )
ret = x509parse_crtfile( &cacert, opt.ca_file );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = x509parse_crt( &cacert, (unsigned char *) test_ca_crt,
strlen( test_ca_crt ) );
#else
{
ret = 1;
printf("POLARSSL_CERTS_C not defined.");
}
#endif
if( ret < 0 )
{
printf( " failed\n ! x509parse_crt 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 ) )
ret = x509parse_crtfile( &clicert, opt.crt_file );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = x509parse_crt( &clicert, (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 ! x509parse_crt returned -0x%x\n\n", -ret );
goto exit;
}
#if defined(POLARSSL_FS_IO)
if( strlen( opt.key_file ) )
ret = x509parse_keyfile( &rsa, opt.key_file, "" );
else
#endif
#if defined(POLARSSL_CERTS_C)
ret = x509parse_key( &rsa, (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 ! x509parse_key returned -0x%x\n\n", -ret );
goto exit;
}
printf( " ok\n" );
/*
* 2. Start the connection
*/
printf( " . Connecting 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 )
{
printf( " failed\n ! net_connect 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( opt.debug_level > 0 )
ssl_set_verify( &ssl, my_verify, NULL );
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
ssl_set_authmode( &ssl, opt.auth_mode );
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( 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 );
ssl_set_ca_chain( &ssl, &cacert, NULL, opt.server_name );
ssl_set_own_cert( &ssl, &clicert, &rsa );
ssl_set_hostname( &ssl, opt.server_name );
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\n", -ret );
goto exit;
}
}
printf( " ok\n [ Ciphersuite is %s ]\n",
ssl_get_ciphersuite( &ssl ) );
/*
* 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" );
printf( " . Peer certificate information ...\n" );
x509parse_cert_info( (char *) buf, sizeof( buf ) - 1, " ",
ssl_get_peer_cert( &ssl ) );
printf( "%s\n", buf );
/*
* 6. Write the GET request
*/
printf( " > Write to server:" );
fflush( stdout );
len = sprintf( (char *) buf, GET_REQUEST, opt.request_page );
while( ( ret = ssl_write( &ssl, buf, len ) ) <= 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;
}
}
len = ret;
printf( " %d bytes written\n\n%s", len, (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");
break;
}
len = ret;
printf( " %d bytes read\n\n%s", len, (char *) buf );
}
while( 1 );
ssl_close_notify( &ssl );
exit:
#ifdef POLARSSL_ERROR_C
if( ret != 0 )
{
char error_buf[100];
error_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 );
x509_free( &clicert );
x509_free( &cacert );
rsa_free( &rsa );
ssl_free( &ssl );
memset( &ssl, 0, sizeof( ssl ) );
#if defined(_WIN32)
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
static int belle_sip_tls_channel_load_root_ca(belle_sip_tls_channel_t *obj, const char *path){
struct stat statbuf;
if (stat(path,&statbuf)==0){
if (statbuf.st_mode & S_IFDIR){
#if POLARSSL_VERSION_NUMBER < 0x01030000
if (x509parse_crtpath(&obj->root_ca,path)<0){
#else
if (x509_crt_parse_path(&obj->root_ca,path)<0){
#endif
belle_sip_error("Failed to load root ca from directory %s",path);
return -1;
}
}else{
#if POLARSSL_VERSION_NUMBER < 0x01030000
if (x509parse_crtfile(&obj->root_ca,path)<0){
#else
if (x509_crt_parse_file(&obj->root_ca,path)<0){
#endif
belle_sip_error("Failed to load root ca from file %s",path);
return -1;
}
}
return 0;
}
belle_sip_error("Could not load root ca from %s: %s",path,strerror(errno));
return -1;
}
#ifdef ENABLE_POLARSSL_LOGS
/*
* polarssl does a lot of logs, some with newline, some without.
* We need to concatenate logs without new line until a new line is found.
*/
static void ssl_debug_to_belle_sip(void *context, int level, const char *str){
belle_sip_tls_channel_t *chan=(belle_sip_tls_channel_t*)context;
int len=strlen(str);
if (len>0 && (str[len-1]=='\n' || str[len-1]=='\r')){
/*eliminate the newline*/
char *tmp=belle_sip_strdup(str);
tmp[len-1]=0;
if (chan->cur_debug_msg){
belle_sip_message("ssl: %s%s",chan->cur_debug_msg,tmp);
belle_sip_free(chan->cur_debug_msg);
chan->cur_debug_msg=NULL;
}else belle_sip_message("ssl: %s",tmp);
belle_sip_free(tmp);
}else{
if (chan->cur_debug_msg){
char *tmp=belle_sip_strdup_printf("%s%s",chan->cur_debug_msg,str);
belle_sip_free(chan->cur_debug_msg);
chan->cur_debug_msg=tmp;
}else chan->cur_debug_msg=belle_sip_strdup(str);
}
}
#endif
belle_sip_channel_t * belle_sip_channel_new_tls(belle_sip_stack_t *stack, belle_tls_verify_policy_t *verify_ctx,const char *bindip, int localport, const char *peer_cname, const char *dest, int port){
belle_sip_tls_channel_t *obj=belle_sip_object_new(belle_sip_tls_channel_t);
belle_sip_stream_channel_t* super=(belle_sip_stream_channel_t*)obj;
belle_sip_stream_channel_init_client(super
,stack
,bindip,localport,peer_cname,dest,port);
ssl_init(&obj->sslctx);
#ifdef ENABLE_POLARSSL_LOGS
ssl_set_dbg(&obj->sslctx,ssl_debug_to_belle_sip,obj);
#endif
ssl_set_endpoint(&obj->sslctx,SSL_IS_CLIENT);
ssl_set_authmode(&obj->sslctx,SSL_VERIFY_REQUIRED);
ssl_set_bio(&obj->sslctx,polarssl_read,obj,polarssl_write,obj);
if (verify_ctx->root_ca && belle_sip_tls_channel_load_root_ca(obj,verify_ctx->root_ca)==0){
ssl_set_ca_chain(&obj->sslctx,&obj->root_ca,NULL,super->base.peer_cname ? super->base.peer_cname : super->base.peer_name );
}
ssl_set_rng(&obj->sslctx,random_generator,NULL);
ssl_set_verify(&obj->sslctx,belle_sip_ssl_verify,verify_ctx);
obj->verify_ctx=(belle_tls_verify_policy_t*)belle_sip_object_ref(verify_ctx);
return (belle_sip_channel_t*)obj;
}
