static CURLcode
polarssl_connect_step1(struct connectdata *conn,
int sockindex)
{
struct Curl_easy *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
const char *capath = SSL_CONN_CONFIG(CApath);
const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
conn->host.name;
const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
int ret = -1;
char errorbuf[128];
errorbuf[0]=0;
/* PolarSSL only supports SSLv3 and TLSv1 */
if(SSL_CONN_CONFIG(version) == CURL_SSLVERSION_SSLv2) {
failf(data, "PolarSSL does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
if((ret = ctr_drbg_init(&BACKEND->ctr_drbg, entropy_func_mutex, &entropy,
NULL, 0)) != 0) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
entropy_init(&BACKEND->entropy);
if((ret = ctr_drbg_init(&BACKEND->ctr_drbg, entropy_func, &BACKEND->entropy,
NULL, 0)) != 0) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
memset(&BACKEND->cacert, 0, sizeof(x509_crt));
if(SSL_CONN_CONFIG(CAfile)) {
ret = x509_crt_parse_file(&BACKEND->cacert,
SSL_CONN_CONFIG(CAfile));
if(ret<0) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Error reading ca cert file %s - PolarSSL: (-0x%04X) %s",
SSL_CONN_CONFIG(CAfile), -ret, errorbuf);
if(SSL_CONN_CONFIG(verifypeer))
return CURLE_SSL_CACERT_BADFILE;
}
}
if(capath) {
ret = x509_crt_parse_path(&BACKEND->cacert, capath);
if(ret<0) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Error reading ca cert path %s - PolarSSL: (-0x%04X) %s",
capath, -ret, errorbuf);
if(SSL_CONN_CONFIG(verifypeer))
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
memset(&BACKEND->clicert, 0, sizeof(x509_crt));
if(SSL_SET_OPTION(cert)) {
ret = x509_crt_parse_file(&BACKEND->clicert,
SSL_SET_OPTION(cert));
if(ret) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Error reading client cert file %s - PolarSSL: (-0x%04X) %s",
SSL_SET_OPTION(cert), -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
if(SSL_SET_OPTION(key)) {
pk_context pk;
pk_init(&pk);
ret = pk_parse_keyfile(&pk, SSL_SET_OPTION(key),
SSL_SET_OPTION(key_passwd));
if(ret == 0 && !pk_can_do(&pk, POLARSSL_PK_RSA))
ret = POLARSSL_ERR_PK_TYPE_MISMATCH;
if(ret == 0)
rsa_copy(&BACKEND->rsa, pk_rsa(pk));
else
rsa_free(&BACKEND->rsa);
pk_free(&pk);
if(ret) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Error reading private key %s - PolarSSL: (-0x%04X) %s",
SSL_SET_OPTION(key), -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
memset(&BACKEND->crl, 0, sizeof(x509_crl));
if(SSL_SET_OPTION(CRLfile)) {
ret = x509_crl_parse_file(&BACKEND->crl,
SSL_SET_OPTION(CRLfile));
if(ret) {
error_strerror(ret, errorbuf, sizeof(errorbuf));
failf(data, "Error reading CRL file %s - PolarSSL: (-0x%04X) %s",
SSL_SET_OPTION(CRLfile), -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "PolarSSL: Connecting to %s:%d\n", hostname, port);
if(ssl_init(&BACKEND->ssl)) {
failf(data, "PolarSSL: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
switch(SSL_CONN_CONFIG(version)) {
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
ssl_set_min_version(&BACKEND->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
break;
case CURL_SSLVERSION_SSLv3:
ssl_set_min_version(&BACKEND->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_0);
ssl_set_max_version(&BACKEND->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_0);
infof(data, "PolarSSL: Forced min. SSL Version to be SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
case CURL_SSLVERSION_TLSv1_1:
case CURL_SSLVERSION_TLSv1_2:
case CURL_SSLVERSION_TLSv1_3:
{
CURLcode result = set_ssl_version_min_max(conn, sockindex);
if(result != CURLE_OK)
return result;
break;
}
default:
failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
return CURLE_SSL_CONNECT_ERROR;
}
ssl_set_endpoint(&BACKEND->ssl, SSL_IS_CLIENT);
ssl_set_authmode(&BACKEND->ssl, SSL_VERIFY_OPTIONAL);
ssl_set_rng(&BACKEND->ssl, ctr_drbg_random,
&BACKEND->ctr_drbg);
ssl_set_bio(&BACKEND->ssl,
net_recv, &conn->sock[sockindex],
net_send, &conn->sock[sockindex]);
ssl_set_ciphersuites(&BACKEND->ssl, ssl_list_ciphersuites());
/* Check if there's a cached ID we can/should use here! */
if(SSL_SET_OPTION(primary.sessionid)) {
void *old_session = NULL;
Curl_ssl_sessionid_lock(conn);
if(!Curl_ssl_getsessionid(conn, &old_session, NULL, sockindex)) {
ret = ssl_set_session(&BACKEND->ssl, old_session);
if(ret) {
Curl_ssl_sessionid_unlock(conn);
failf(data, "ssl_set_session returned -0x%x", -ret);
return CURLE_SSL_CONNECT_ERROR;
}
infof(data, "PolarSSL re-using session\n");
}
Curl_ssl_sessionid_unlock(conn);
}
ssl_set_ca_chain(&BACKEND->ssl,
&BACKEND->cacert,
&BACKEND->crl,
hostname);
ssl_set_own_cert_rsa(&BACKEND->ssl,
&BACKEND->clicert, &BACKEND->rsa);
if(ssl_set_hostname(&BACKEND->ssl, hostname)) {
/* ssl_set_hostname() sets the name to use in CN/SAN checks *and* the name
to set in the SNI extension. So even if curl connects to a host
specified as an IP address, this function must be used. */
failf(data, "couldn't set hostname in PolarSSL");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef HAS_ALPN
if(conn->bits.tls_enable_alpn) {
static const char *protocols[3];
int cur = 0;
#ifdef USE_NGHTTP2
if(data->set.httpversion >= CURL_HTTP_VERSION_2) {
protocols[cur++] = NGHTTP2_PROTO_VERSION_ID;
infof(data, "ALPN, offering %s\n", NGHTTP2_PROTO_VERSION_ID);
}
#endif
protocols[cur++] = ALPN_HTTP_1_1;
infof(data, "ALPN, offering %s\n", ALPN_HTTP_1_1);
protocols[cur] = NULL;
ssl_set_alpn_protocols(&BACKEND->ssl, protocols);
}
#endif
#ifdef POLARSSL_DEBUG
ssl_set_dbg(&BACKEND->ssl, polarssl_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
mbed_connect_step1(struct connectdata *conn,
int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
bool sni = TRUE; /* default is SNI enabled */
int ret = -1;
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
void *old_session = NULL;
char errorbuf[128];
errorbuf[0]=0;
/* mbedTLS only supports SSLv3 and TLSv1 */
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
failf(data, "mbedTLS does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
sni = FALSE; /* SSLv3 has no SNI */
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
mbedtls_ctr_drbg_init(&connssl->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&connssl->ctr_drbg, entropy_func_mutex,
&entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
mbedtls_entropy_init(&connssl->entropy);
mbedtls_ctr_drbg_init(&connssl->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&connssl->ctr_drbg, mbedtls_entropy_func,
&connssl->entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
mbedtls_x509_crt_init(&connssl->cacert);
if(data->set.str[STRING_SSL_CAFILE]) {
ret = mbedtls_x509_crt_parse_file(&connssl->cacert,
data->set.str[STRING_SSL_CAFILE]);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CAFILE], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
if(data->set.str[STRING_SSL_CAPATH]) {
ret = mbedtls_x509_crt_parse_path(&connssl->cacert,
data->set.str[STRING_SSL_CAPATH]);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert path %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CAPATH], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
mbedtls_x509_crt_init(&connssl->clicert);
if(data->set.str[STRING_CERT]) {
ret = mbedtls_x509_crt_parse_file(&connssl->clicert,
data->set.str[STRING_CERT]);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading client cert file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_CERT], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
mbedtls_pk_init(&connssl->pk);
if(data->set.str[STRING_KEY]) {
ret = mbedtls_pk_parse_keyfile(&connssl->pk, data->set.str[STRING_KEY],
data->set.str[STRING_KEY_PASSWD]);
if(ret == 0 && !mbedtls_pk_can_do(&connssl->pk, MBEDTLS_PK_RSA))
ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading private key %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_KEY], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
mbedtls_x509_crl_init(&connssl->crl);
if(data->set.str[STRING_SSL_CRLFILE]) {
ret = mbedtls_x509_crl_parse_file(&connssl->crl,
data->set.str[STRING_SSL_CRLFILE]);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading CRL file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CRLFILE], -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "mbedTLS: Connecting to %s:%d\n",
conn->host.name, conn->remote_port);
mbedtls_ssl_config_init(&connssl->config);
mbedtls_ssl_init(&connssl->ssl);
if(mbedtls_ssl_setup(&connssl->ssl, &connssl->config)) {
failf(data, "mbedTLS: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
ret = mbedtls_ssl_config_defaults(&connssl->config,
MBEDTLS_SSL_IS_CLIENT,
MBEDTLS_SSL_TRANSPORT_STREAM,
MBEDTLS_SSL_PRESET_DEFAULT);
if(ret) {
failf(data, "mbedTLS: ssl_config failed");
return CURLE_SSL_CONNECT_ERROR;
}
/* new profile with RSA min key len = 1024 ... */
mbedtls_ssl_conf_cert_profile(&connssl->config,
&mbedtls_x509_crt_profile_fr);
switch(data->set.ssl.version) {
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_1);
infof(data, "mbedTLS: Set min SSL version to TLS 1.0\n");
break;
case CURL_SSLVERSION_SSLv3:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_0);
mbedtls_ssl_conf_max_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_0);
infof(data, "mbedTLS: Set SSL version to SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_1);
mbedtls_ssl_conf_max_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_1);
infof(data, "mbedTLS: Set SSL version to TLS 1.0\n");
break;
case CURL_SSLVERSION_TLSv1_1:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_2);
mbedtls_ssl_conf_max_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_2);
infof(data, "mbedTLS: Set SSL version to TLS 1.1\n");
break;
case CURL_SSLVERSION_TLSv1_2:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_3);
mbedtls_ssl_conf_max_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_3);
infof(data, "mbedTLS: Set SSL version to TLS 1.2\n");
break;
default:
failf(data, "mbedTLS: Unsupported SSL protocol version");
return CURLE_SSL_CONNECT_ERROR;
}
mbedtls_ssl_conf_authmode(&connssl->config, MBEDTLS_SSL_VERIFY_OPTIONAL);
mbedtls_ssl_conf_rng(&connssl->config, mbedtls_ctr_drbg_random,
&connssl->ctr_drbg);
mbedtls_ssl_set_bio(&connssl->ssl, &conn->sock[sockindex],
mbedtls_net_send,
mbedtls_net_recv,
NULL /* rev_timeout() */);
mbedtls_ssl_conf_ciphersuites(&connssl->config,
mbedtls_ssl_list_ciphersuites());
if(!Curl_ssl_getsessionid(conn, &old_session, NULL)) {
ret = mbedtls_ssl_set_session(&connssl->ssl, old_session);
if(ret) {
failf(data, "mbedtls_ssl_set_session returned -0x%x", -ret);
return CURLE_SSL_CONNECT_ERROR;
}
infof(data, "mbedTLS re-using session\n");
}
mbedtls_ssl_conf_ca_chain(&connssl->config,
&connssl->cacert,
&connssl->crl);
if(data->set.str[STRING_KEY]) {
mbedtls_ssl_conf_own_cert(&connssl->config,
&connssl->clicert, &connssl->pk);
}
if(mbedtls_ssl_set_hostname(&connssl->ssl, conn->host.name)) {
/* mbedtls_ssl_set_hostname() sets the name to use in CN/SAN checks *and*
the name to set in the SNI extension. So even if curl connects to a
host specified as an IP address, this function must be used. */
failf(data, "couldn't set hostname in mbedTLS");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef HAS_ALPN
if(conn->bits.tls_enable_alpn) {
const char **p = &connssl->protocols[0];
#ifdef USE_NGHTTP2
if(data->set.httpversion >= CURL_HTTP_VERSION_2)
*p++ = NGHTTP2_PROTO_VERSION_ID;
#endif
*p++ = ALPN_HTTP_1_1;
*p = NULL;
/* this function doesn't clone the protocols array, which is why we need
to keep it around */
if(mbedtls_ssl_conf_alpn_protocols(&connssl->config,
&connssl->protocols[0])) {
failf(data, "Failed setting ALPN protocols");
return CURLE_SSL_CONNECT_ERROR;
}
for(p = &connssl->protocols[0]; *p; ++p)
infof(data, "ALPN, offering %s\n", *p);
}
#endif
#ifdef MBEDTLS_DEBUG
mbedtls_ssl_conf_dbg(&connssl->config, mbedtls_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
polarssl_connect_step1(struct connectdata *conn,
int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
bool sni = TRUE; /* default is SNI enabled */
int ret = -1;
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
void *old_session = NULL;
size_t old_session_size = 0;
char errorbuf[128];
memset(errorbuf, 0, sizeof(errorbuf));
/* PolarSSL only supports SSLv3 and TLSv1 */
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
failf(data, "PolarSSL does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
sni = FALSE; /* SSLv3 has no SNI */
#if POLARSSL_VERSION_NUMBER<0x01010000
havege_init(&connssl->hs);
#else
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func_mutex, &entropy,
connssl->ssn.id, connssl->ssn.length)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
entropy_init(&connssl->entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func, &connssl->entropy,
connssl->ssn.id, connssl->ssn.length)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
#endif /* POLARSSL_VERSION_NUMBER<0x01010000 */
/* Load the trusted CA */
memset(&connssl->cacert, 0, sizeof(x509_cert));
if(data->set.str[STRING_SSL_CAFILE]) {
ret = x509parse_crtfile(&connssl->cacert,
data->set.str[STRING_SSL_CAFILE]);
if(ret<0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading ca cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CAFILE], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
memset(&connssl->clicert, 0, sizeof(x509_cert));
if(data->set.str[STRING_CERT]) {
ret = x509parse_crtfile(&connssl->clicert,
data->set.str[STRING_CERT]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading client cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_CERT], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
if(data->set.str[STRING_KEY]) {
ret = x509parse_keyfile(&connssl->rsa,
data->set.str[STRING_KEY],
data->set.str[STRING_KEY_PASSWD]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading private key %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_KEY], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
memset(&connssl->crl, 0, sizeof(x509_crl));
if(data->set.str[STRING_SSL_CRLFILE]) {
ret = x509parse_crlfile(&connssl->crl,
data->set.str[STRING_SSL_CRLFILE]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading CRL file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CRLFILE], -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "PolarSSL: Connecting to %s:%d\n",
conn->host.name, conn->remote_port);
if(ssl_init(&connssl->ssl)) {
failf(data, "PolarSSL: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
ssl_set_endpoint(&connssl->ssl, SSL_IS_CLIENT);
ssl_set_authmode(&connssl->ssl, SSL_VERIFY_OPTIONAL);
#if POLARSSL_VERSION_NUMBER<0x01010000
ssl_set_rng(&connssl->ssl, havege_rand,
&connssl->hs);
#else
ssl_set_rng(&connssl->ssl, ctr_drbg_random,
&connssl->ctr_drbg);
#endif /* POLARSSL_VERSION_NUMBER<0x01010000 */
ssl_set_bio(&connssl->ssl,
net_recv, &conn->sock[sockindex],
net_send, &conn->sock[sockindex]);
#if POLARSSL_VERSION_NUMBER<0x01000000
ssl_set_ciphers(&connssl->ssl, ssl_default_ciphers);
#else
ssl_set_ciphersuites(&connssl->ssl, ssl_default_ciphersuites);
#endif
if(!Curl_ssl_getsessionid(conn, &old_session, &old_session_size)) {
memcpy(&connssl->ssn, old_session, old_session_size);
infof(data, "PolarSSL re-using session\n");
}
/* PolarSSL SVN revision r1316 to r1317, matching <1.2.0 is to cover Ubuntu's
1.1.4 version and the like */
#if POLARSSL_VERSION_NUMBER<0x01020000
ssl_set_session(&connssl->ssl, 1, 600,
&connssl->ssn);
#else
ssl_set_session(&connssl->ssl,
&connssl->ssn);
#endif
ssl_set_ca_chain(&connssl->ssl,
&connssl->cacert,
&connssl->crl,
conn->host.name);
ssl_set_own_cert(&connssl->ssl,
&connssl->clicert, &connssl->rsa);
if(!Curl_inet_pton(AF_INET, conn->host.name, &addr) &&
#ifdef ENABLE_IPV6
!Curl_inet_pton(AF_INET6, conn->host.name, &addr) &&
#endif
sni && ssl_set_hostname(&connssl->ssl, conn->host.name)) {
infof(data, "WARNING: failed to configure "
"server name indication (SNI) TLS extension\n");
}
#ifdef POLARSSL_DEBUG
ssl_set_dbg(&connssl->ssl, polarssl_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
mbed_connect_step1(struct connectdata *conn,
int sockindex)
{
struct Curl_easy *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
const char * const ssl_cafile = SSL_CONN_CONFIG(CAfile);
const bool verifypeer = SSL_CONN_CONFIG(verifypeer);
const char * const ssl_capath = SSL_CONN_CONFIG(CApath);
char * const ssl_cert = SSL_SET_OPTION(cert);
const char * const ssl_crlfile = SSL_SET_OPTION(CRLfile);
const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
conn->host.name;
const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
int ret = -1;
char errorbuf[128];
errorbuf[0]=0;
/* mbedTLS only supports SSLv3 and TLSv1 */
if(SSL_CONN_CONFIG(version) == CURL_SSLVERSION_SSLv2) {
failf(data, "mbedTLS does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef THREADING_SUPPORT
entropy_init_mutex(&ts_entropy);
mbedtls_ctr_drbg_init(&BACKEND->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&BACKEND->ctr_drbg, entropy_func_mutex,
&ts_entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
mbedtls_entropy_init(&BACKEND->entropy);
mbedtls_ctr_drbg_init(&BACKEND->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&BACKEND->ctr_drbg, mbedtls_entropy_func,
&BACKEND->entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
mbedtls_x509_crt_init(&BACKEND->cacert);
if(ssl_cafile) {
ret = mbedtls_x509_crt_parse_file(&BACKEND->cacert, ssl_cafile);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert file %s - mbedTLS: (-0x%04X) %s",
ssl_cafile, -ret, errorbuf);
if(verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
if(ssl_capath) {
ret = mbedtls_x509_crt_parse_path(&BACKEND->cacert, ssl_capath);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert path %s - mbedTLS: (-0x%04X) %s",
ssl_capath, -ret, errorbuf);
if(verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
mbedtls_x509_crt_init(&BACKEND->clicert);
if(ssl_cert) {
ret = mbedtls_x509_crt_parse_file(&BACKEND->clicert, ssl_cert);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading client cert file %s - mbedTLS: (-0x%04X) %s",
ssl_cert, -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
mbedtls_pk_init(&BACKEND->pk);
if(SSL_SET_OPTION(key)) {
ret = mbedtls_pk_parse_keyfile(&BACKEND->pk, SSL_SET_OPTION(key),
SSL_SET_OPTION(key_passwd));
if(ret == 0 && !mbedtls_pk_can_do(&BACKEND->pk, MBEDTLS_PK_RSA))
ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading private key %s - mbedTLS: (-0x%04X) %s",
SSL_SET_OPTION(key), -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
mbedtls_x509_crl_init(&BACKEND->crl);
if(ssl_crlfile) {
ret = mbedtls_x509_crl_parse_file(&BACKEND->crl, ssl_crlfile);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading CRL file %s - mbedTLS: (-0x%04X) %s",
ssl_crlfile, -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "mbedTLS: Connecting to %s:%d\n", hostname, port);
mbedtls_ssl_config_init(&BACKEND->config);
mbedtls_ssl_init(&BACKEND->ssl);
if(mbedtls_ssl_setup(&BACKEND->ssl, &BACKEND->config)) {
failf(data, "mbedTLS: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
ret = mbedtls_ssl_config_defaults(&BACKEND->config,
MBEDTLS_SSL_IS_CLIENT,
MBEDTLS_SSL_TRANSPORT_STREAM,
MBEDTLS_SSL_PRESET_DEFAULT);
if(ret) {
failf(data, "mbedTLS: ssl_config failed");
return CURLE_SSL_CONNECT_ERROR;
}
/* new profile with RSA min key len = 1024 ... */
mbedtls_ssl_conf_cert_profile(&BACKEND->config,
&mbedtls_x509_crt_profile_fr);
switch(SSL_CONN_CONFIG(version)) {
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
mbedtls_ssl_conf_min_version(&BACKEND->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_1);
infof(data, "mbedTLS: Set min SSL version to TLS 1.0\n");
break;
case CURL_SSLVERSION_SSLv3:
mbedtls_ssl_conf_min_version(&BACKEND->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_0);
mbedtls_ssl_conf_max_version(&BACKEND->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_0);
infof(data, "mbedTLS: Set SSL version to SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
case CURL_SSLVERSION_TLSv1_1:
case CURL_SSLVERSION_TLSv1_2:
case CURL_SSLVERSION_TLSv1_3:
{
CURLcode result = set_ssl_version_min_max(conn, sockindex);
if(result != CURLE_OK)
return result;
break;
}
default:
failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
return CURLE_SSL_CONNECT_ERROR;
}
mbedtls_ssl_conf_authmode(&BACKEND->config, MBEDTLS_SSL_VERIFY_OPTIONAL);
mbedtls_ssl_conf_rng(&BACKEND->config, mbedtls_ctr_drbg_random,
&BACKEND->ctr_drbg);
mbedtls_ssl_set_bio(&BACKEND->ssl, &conn->sock[sockindex],
mbedtls_net_send,
mbedtls_net_recv,
NULL /* rev_timeout() */);
mbedtls_ssl_conf_ciphersuites(&BACKEND->config,
mbedtls_ssl_list_ciphersuites());
#if defined(MBEDTLS_SSL_RENEGOTIATION)
mbedtls_ssl_conf_renegotiation(&BACKEND->config,
MBEDTLS_SSL_RENEGOTIATION_ENABLED);
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
mbedtls_ssl_conf_session_tickets(&BACKEND->config,
MBEDTLS_SSL_SESSION_TICKETS_DISABLED);
#endif
/* Check if there's a cached ID we can/should use here! */
if(SSL_SET_OPTION(primary.sessionid)) {
void *old_session = NULL;
Curl_ssl_sessionid_lock(conn);
if(!Curl_ssl_getsessionid(conn, &old_session, NULL, sockindex)) {
ret = mbedtls_ssl_set_session(&BACKEND->ssl, old_session);
if(ret) {
Curl_ssl_sessionid_unlock(conn);
failf(data, "mbedtls_ssl_set_session returned -0x%x", -ret);
return CURLE_SSL_CONNECT_ERROR;
}
infof(data, "mbedTLS re-using session\n");
}
Curl_ssl_sessionid_unlock(conn);
}
mbedtls_ssl_conf_ca_chain(&BACKEND->config,
&BACKEND->cacert,
&BACKEND->crl);
if(SSL_SET_OPTION(key)) {
mbedtls_ssl_conf_own_cert(&BACKEND->config,
&BACKEND->clicert, &BACKEND->pk);
}
if(mbedtls_ssl_set_hostname(&BACKEND->ssl, hostname)) {
/* mbedtls_ssl_set_hostname() sets the name to use in CN/SAN checks *and*
the name to set in the SNI extension. So even if curl connects to a
host specified as an IP address, this function must be used. */
failf(data, "couldn't set hostname in mbedTLS");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef HAS_ALPN
if(conn->bits.tls_enable_alpn) {
const char **p = &BACKEND->protocols[0];
#ifdef USE_NGHTTP2
if(data->set.httpversion >= CURL_HTTP_VERSION_2)
*p++ = NGHTTP2_PROTO_VERSION_ID;
#endif
*p++ = ALPN_HTTP_1_1;
*p = NULL;
/* this function doesn't clone the protocols array, which is why we need
to keep it around */
if(mbedtls_ssl_conf_alpn_protocols(&BACKEND->config,
&BACKEND->protocols[0])) {
failf(data, "Failed setting ALPN protocols");
return CURLE_SSL_CONNECT_ERROR;
}
for(p = &BACKEND->protocols[0]; *p; ++p)
infof(data, "ALPN, offering %s\n", *p);
}
#endif
#ifdef MBEDTLS_DEBUG
/* In order to make that work in mbedtls MBEDTLS_DEBUG_C must be defined. */
mbedtls_ssl_conf_dbg(&BACKEND->config, mbed_debug, data);
/* - 0 No debug
* - 1 Error
* - 2 State change
* - 3 Informational
* - 4 Verbose
*/
mbedtls_debug_set_threshold(4);
#endif
/* give application a chance to interfere with mbedTLS set up. */
if(data->set.ssl.fsslctx) {
ret = (*data->set.ssl.fsslctx)(data, &BACKEND->config,
data->set.ssl.fsslctxp);
if(ret) {
failf(data, "error signaled by ssl ctx callback");
return ret;
}
}
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
polarssl_connect_step1(struct connectdata *conn,
int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
bool sni = TRUE; /* default is SNI enabled */
int ret = -1;
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
void *old_session = NULL;
size_t old_session_size = 0;
char errorbuf[128];
errorbuf[0]=0;
/* PolarSSL only supports SSLv3 and TLSv1 */
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
failf(data, "PolarSSL does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
sni = FALSE; /* SSLv3 has no SNI */
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func_mutex, &entropy,
connssl->ssn.id, connssl->ssn.length)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
entropy_init(&connssl->entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func, &connssl->entropy,
connssl->ssn.id, connssl->ssn.length)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
memset(&connssl->cacert, 0, sizeof(x509_crt));
if(data->set.str[STRING_SSL_CAFILE]) {
ret = x509_crt_parse_file(&connssl->cacert,
data->set.str[STRING_SSL_CAFILE]);
if(ret<0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading ca cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CAFILE], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
if(data->set.str[STRING_SSL_CAPATH]) {
ret = x509_crt_parse_path(&connssl->cacert,
data->set.str[STRING_SSL_CAPATH]);
if(ret<0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading ca cert path %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CAPATH], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
memset(&connssl->clicert, 0, sizeof(x509_crt));
if(data->set.str[STRING_CERT]) {
ret = x509_crt_parse_file(&connssl->clicert,
data->set.str[STRING_CERT]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading client cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_CERT], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
if(data->set.str[STRING_KEY]) {
pk_context pk;
pk_init(&pk);
ret = pk_parse_keyfile(&pk, data->set.str[STRING_KEY],
data->set.str[STRING_KEY_PASSWD]);
if(ret == 0 && !pk_can_do(&pk, POLARSSL_PK_RSA))
ret = POLARSSL_ERR_PK_TYPE_MISMATCH;
if(ret == 0)
rsa_copy(&connssl->rsa, pk_rsa(pk));
else
rsa_free(&connssl->rsa);
pk_free(&pk);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading private key %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_KEY], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
memset(&connssl->crl, 0, sizeof(x509_crl));
if(data->set.str[STRING_SSL_CRLFILE]) {
ret = x509_crl_parse_file(&connssl->crl,
data->set.str[STRING_SSL_CRLFILE]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading CRL file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CRLFILE], -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "PolarSSL: Connecting to %s:%d\n",
conn->host.name, conn->remote_port);
if(ssl_init(&connssl->ssl)) {
failf(data, "PolarSSL: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
switch(data->set.ssl.version) {
default:
case CURL_SSLVERSION_DEFAULT:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
break;
case CURL_SSLVERSION_SSLv3:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_0);
infof(data, "PolarSSL: Forced min. SSL Version to be SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.0\n");
break;
case CURL_SSLVERSION_TLSv1_1:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_2);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.1\n");
break;
case CURL_SSLVERSION_TLSv1_2:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_3);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.2\n");
break;
}
ssl_set_endpoint(&connssl->ssl, SSL_IS_CLIENT);
ssl_set_authmode(&connssl->ssl, SSL_VERIFY_OPTIONAL);
ssl_set_rng(&connssl->ssl, ctr_drbg_random,
&connssl->ctr_drbg);
ssl_set_bio(&connssl->ssl,
net_recv, &conn->sock[sockindex],
net_send, &conn->sock[sockindex]);
ssl_set_ciphersuites(&connssl->ssl, ssl_list_ciphersuites());
if(!Curl_ssl_getsessionid(conn, &old_session, &old_session_size)) {
memcpy(&connssl->ssn, old_session, old_session_size);
infof(data, "PolarSSL re-using session\n");
}
ssl_set_session(&connssl->ssl,
&connssl->ssn);
ssl_set_ca_chain(&connssl->ssl,
&connssl->cacert,
&connssl->crl,
conn->host.name);
ssl_set_own_cert_rsa(&connssl->ssl,
&connssl->clicert, &connssl->rsa);
if(!Curl_inet_pton(AF_INET, conn->host.name, &addr) &&
#ifdef ENABLE_IPV6
!Curl_inet_pton(AF_INET6, conn->host.name, &addr) &&
#endif
sni && ssl_set_hostname(&connssl->ssl, conn->host.name)) {
infof(data, "WARNING: failed to configure "
"server name indication (SNI) TLS extension\n");
}
#ifdef HAS_ALPN
if(data->set.httpversion == CURL_HTTP_VERSION_2_0) {
if(data->set.ssl_enable_alpn) {
static const char* protocols[] = {
NGHTTP2_PROTO_VERSION_ID, ALPN_HTTP_1_1, NULL
};
ssl_set_alpn_protocols(&connssl->ssl, protocols);
infof(data, "ALPN, offering %s, %s\n", protocols[0],
protocols[1]);
}
}
#endif
#ifdef POLARSSL_DEBUG
ssl_set_dbg(&connssl->ssl, polarssl_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
mbedtls_connect_step1(struct connectdata *conn,
int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
bool sni = TRUE; /* default is SNI enabled */
int ret = -1;
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
void *old_session = NULL;
size_t old_session_size = 0;
char errorbuf[128];
errorbuf[0]=0;
/* mbedTLS only supports SSLv3 and TLSv1 */
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
failf(data, "mbedTLS does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
sni = FALSE; /* SSLv3 has no SNI */
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
mbedtls_ctr_drbg_init(&connssl->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&connssl->ctr_drbg, entropy_func_mutex,
&entropy, connssl->ssn.id,
connssl->ssn.id_len);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
mbedtls_entropy_init(&connssl->entropy);
mbedtls_ctr_drbg_init(&connssl->ctr_drbg);
ret = mbedtls_ctr_drbg_seed(&connssl->ctr_drbg, mbedtls_entropy_func,
&connssl->entropy, connssl->ssn.id,
connssl->ssn.id_len);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
memset(&connssl->cacert, 0, sizeof(mbedtls_x509_crt));
if(data->set.str[STRING_SSL_CAFILE]) {
ret = mbedtls_x509_crt_parse_file(&connssl->cacert,
data->set.str[STRING_SSL_CAFILE]);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CAFILE], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
if(data->set.str[STRING_SSL_CAPATH]) {
ret = mbedtls_x509_crt_parse_path(&connssl->cacert,
data->set.str[STRING_SSL_CAPATH]);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert path %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CAPATH], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
memset(&connssl->clicert, 0, sizeof(mbedtls_x509_crt));
if(data->set.str[STRING_CERT]) {
ret = mbedtls_x509_crt_parse_file(&connssl->clicert,
data->set.str[STRING_CERT]);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading client cert file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_CERT], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
if(data->set.str[STRING_KEY]) {
mbedtls_pk_init(&connssl->pk);
ret = mbedtls_pk_parse_keyfile(&connssl->pk, data->set.str[STRING_KEY],
data->set.str[STRING_KEY_PASSWD]);
if(ret == 0 && !mbedtls_pk_can_do(&connssl->pk, MBEDTLS_PK_RSA))
ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading private key %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_KEY], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
memset(&connssl->crl, 0, sizeof(mbedtls_x509_crl));
if(data->set.str[STRING_SSL_CRLFILE]) {
ret = mbedtls_x509_crl_parse_file(&connssl->crl,
data->set.str[STRING_SSL_CRLFILE]);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading CRL file %s - mbedTLS: (-0x%04X) %s",
data->set.str[STRING_SSL_CRLFILE], -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "mbedTLS: Connecting to %s:%d\n",
conn->host.name, conn->remote_port);
mbedtls_ssl_config_init(&connssl->config);
mbedtls_ssl_init(&connssl->ssl);
if(mbedtls_ssl_setup(&connssl->ssl, &connssl->config)) {
failf(data, "mbedTLS: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
ret = mbedtls_ssl_config_defaults(&connssl->config,
MBEDTLS_SSL_IS_CLIENT,
MBEDTLS_SSL_TRANSPORT_STREAM,
MBEDTLS_SSL_PRESET_DEFAULT);
if(ret) {
failf(data, "mbedTLS: ssl_config failed");
return CURLE_SSL_CONNECT_ERROR;
}
/* new profile with RSA min key len = 1024 ... */
mbedtls_ssl_conf_cert_profile( &connssl->config,
&mbedtls_x509_crt_profile_fr);
switch(data->set.ssl.version) {
case CURL_SSLVERSION_SSLv3:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_0);
infof(data, "mbedTLS: Forced min. SSL Version to be SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_1);
infof(data, "mbedTLS: Forced min. SSL Version to be TLS 1.0\n");
break;
case CURL_SSLVERSION_TLSv1_1:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_2);
infof(data, "mbedTLS: Forced min. SSL Version to be TLS 1.1\n");
break;
case CURL_SSLVERSION_TLSv1_2:
mbedtls_ssl_conf_min_version(&connssl->config, MBEDTLS_SSL_MAJOR_VERSION_3,
MBEDTLS_SSL_MINOR_VERSION_3);
infof(data, "mbedTLS: Forced min. SSL Version to be TLS 1.2\n");
break;
}
mbedtls_ssl_conf_authmode(&connssl->config, MBEDTLS_SSL_VERIFY_OPTIONAL);
mbedtls_ssl_conf_rng(&connssl->config, mbedtls_ctr_drbg_random,
&connssl->ctr_drbg);
mbedtls_ssl_set_bio(&connssl->ssl, &conn->sock[sockindex],
mbedtls_net_send,
mbedtls_net_recv,
NULL /* rev_timeout() */);
mbedtls_ssl_conf_ciphersuites(&connssl->config,
mbedtls_ssl_list_ciphersuites());
if(!Curl_ssl_getsessionid(conn, &old_session, &old_session_size)) {
memcpy(&connssl->ssn, old_session, old_session_size);
infof(data, "mbedTLS re-using session\n");
}
mbedtls_ssl_set_session(&connssl->ssl,
&connssl->ssn);
mbedtls_ssl_conf_ca_chain(&connssl->config,
&connssl->cacert,
&connssl->crl);
if(data->set.str[STRING_KEY]) {
mbedtls_ssl_conf_own_cert(&connssl->config,
&connssl->clicert, &connssl->pk);
}
if(!Curl_inet_pton(AF_INET, conn->host.name, &addr) &&
#ifdef ENABLE_IPV6
!Curl_inet_pton(AF_INET6, conn->host.name, &addr) &&
#endif
sni && mbedtls_ssl_set_hostname(&connssl->ssl, conn->host.name)) {
infof(data, "WARNING: failed to configure "
"server name indication (SNI) TLS extension\n");
}
#ifdef HAS_ALPN
if(data->set.ssl_enable_alpn) {
const char *protocols[3];
const char **p = protocols;
#ifdef USE_NGHTTP2
if(data->set.httpversion >= CURL_HTTP_VERSION_2)
*p++ = NGHTTP2_PROTO_VERSION_ID;
#endif
*p++ = ALPN_HTTP_1_1;
*p = NULL;
if(mbedtls_ssl_conf_alpn_protocols(&connssl->config, protocols)) {
failf(data, "Failed setting ALPN protocols");
return CURLE_SSL_CONNECT_ERROR;
}
for(p = protocols; *p; ++p)
infof(data, "ALPN, offering %s\n", *p);
}
#endif
#ifdef MBEDTLS_DEBUG
mbedtls_ssl_conf_dbg(&connssl->ssl, mbedtls_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
static CURLcode
polarssl_connect_step1(struct connectdata *conn,
int sockindex)
{
struct Curl_easy *data = conn->data;
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
bool sni = TRUE; /* default is SNI enabled */
int ret = -1;
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
char errorbuf[128];
errorbuf[0]=0;
/* PolarSSL only supports SSLv3 and TLSv1 */
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
failf(data, "PolarSSL does not support SSLv2");
return CURLE_SSL_CONNECT_ERROR;
}
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
sni = FALSE; /* SSLv3 has no SNI */
#ifdef THREADING_SUPPORT
entropy_init_mutex(&entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func_mutex, &entropy,
NULL, 0)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#else
entropy_init(&connssl->entropy);
if((ret = ctr_drbg_init(&connssl->ctr_drbg, entropy_func, &connssl->entropy,
NULL, 0)) != 0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Failed - PolarSSL: ctr_drbg_init returned (-0x%04X) %s\n",
-ret, errorbuf);
}
#endif /* THREADING_SUPPORT */
/* Load the trusted CA */
memset(&connssl->cacert, 0, sizeof(x509_crt));
if(data->set.str[STRING_SSL_CAFILE]) {
ret = x509_crt_parse_file(&connssl->cacert,
data->set.str[STRING_SSL_CAFILE]);
if(ret<0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading ca cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CAFILE], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
if(data->set.str[STRING_SSL_CAPATH]) {
ret = x509_crt_parse_path(&connssl->cacert,
data->set.str[STRING_SSL_CAPATH]);
if(ret<0) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading ca cert path %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CAPATH], -ret, errorbuf);
if(data->set.ssl.verifypeer)
return CURLE_SSL_CACERT_BADFILE;
}
}
/* Load the client certificate */
memset(&connssl->clicert, 0, sizeof(x509_crt));
if(data->set.str[STRING_CERT]) {
ret = x509_crt_parse_file(&connssl->clicert,
data->set.str[STRING_CERT]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading client cert file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_CERT], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the client private key */
if(data->set.str[STRING_KEY]) {
pk_context pk;
pk_init(&pk);
ret = pk_parse_keyfile(&pk, data->set.str[STRING_KEY],
data->set.str[STRING_KEY_PASSWD]);
if(ret == 0 && !pk_can_do(&pk, POLARSSL_PK_RSA))
ret = POLARSSL_ERR_PK_TYPE_MISMATCH;
if(ret == 0)
rsa_copy(&connssl->rsa, pk_rsa(pk));
else
rsa_free(&connssl->rsa);
pk_free(&pk);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading private key %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_KEY], -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
/* Load the CRL */
memset(&connssl->crl, 0, sizeof(x509_crl));
if(data->set.str[STRING_SSL_CRLFILE]) {
ret = x509_crl_parse_file(&connssl->crl,
data->set.str[STRING_SSL_CRLFILE]);
if(ret) {
#ifdef POLARSSL_ERROR_C
error_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* POLARSSL_ERROR_C */
failf(data, "Error reading CRL file %s - PolarSSL: (-0x%04X) %s",
data->set.str[STRING_SSL_CRLFILE], -ret, errorbuf);
return CURLE_SSL_CRL_BADFILE;
}
}
infof(data, "PolarSSL: Connecting to %s:%d\n",
conn->host.name, conn->remote_port);
if(ssl_init(&connssl->ssl)) {
failf(data, "PolarSSL: ssl_init failed");
return CURLE_SSL_CONNECT_ERROR;
}
switch(data->set.ssl.version) {
default:
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
break;
case CURL_SSLVERSION_SSLv3:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_0);
ssl_set_max_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_0);
infof(data, "PolarSSL: Forced min. SSL Version to be SSLv3\n");
break;
case CURL_SSLVERSION_TLSv1_0:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
ssl_set_max_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_1);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.0\n");
break;
case CURL_SSLVERSION_TLSv1_1:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_2);
ssl_set_max_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_2);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.1\n");
break;
case CURL_SSLVERSION_TLSv1_2:
ssl_set_min_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_3);
ssl_set_max_version(&connssl->ssl, SSL_MAJOR_VERSION_3,
SSL_MINOR_VERSION_3);
infof(data, "PolarSSL: Forced min. SSL Version to be TLS 1.2\n");
break;
}
ssl_set_endpoint(&connssl->ssl, SSL_IS_CLIENT);
ssl_set_authmode(&connssl->ssl, SSL_VERIFY_OPTIONAL);
ssl_set_rng(&connssl->ssl, ctr_drbg_random,
&connssl->ctr_drbg);
ssl_set_bio(&connssl->ssl,
net_recv, &conn->sock[sockindex],
net_send, &conn->sock[sockindex]);
ssl_set_ciphersuites(&connssl->ssl, ssl_list_ciphersuites());
/* Check if there's a cached ID we can/should use here! */
if(conn->ssl_config.sessionid) {
void *old_session = NULL;
Curl_ssl_sessionid_lock(conn);
if(!Curl_ssl_getsessionid(conn, &old_session, NULL)) {
ret = ssl_set_session(&connssl->ssl, old_session);
Curl_ssl_sessionid_unlock(conn);
if(ret) {
failf(data, "ssl_set_session returned -0x%x", -ret);
return CURLE_SSL_CONNECT_ERROR;
}
infof(data, "PolarSSL re-using session\n");
}
}
ssl_set_ca_chain(&connssl->ssl,
&connssl->cacert,
&connssl->crl,
conn->host.name);
ssl_set_own_cert_rsa(&connssl->ssl,
&connssl->clicert, &connssl->rsa);
if(ssl_set_hostname(&connssl->ssl, conn->host.name)) {
/* ssl_set_hostname() sets the name to use in CN/SAN checks *and* the name
to set in the SNI extension. So even if curl connects to a host
specified as an IP address, this function must be used. */
failf(data, "couldn't set hostname in PolarSSL");
return CURLE_SSL_CONNECT_ERROR;
}
#ifdef HAS_ALPN
if(conn->bits.tls_enable_alpn) {
static const char* protocols[3];
int cur = 0;
#ifdef USE_NGHTTP2
if(data->set.httpversion >= CURL_HTTP_VERSION_2) {
protocols[cur++] = NGHTTP2_PROTO_VERSION_ID;
infof(data, "ALPN, offering %s\n", NGHTTP2_PROTO_VERSION_ID);
}
#endif
protocols[cur++] = ALPN_HTTP_1_1;
infof(data, "ALPN, offering %s\n", ALPN_HTTP_1_1);
protocols[cur] = NULL;
ssl_set_alpn_protocols(&connssl->ssl, protocols);
}
#endif
#ifdef POLARSSL_DEBUG
ssl_set_dbg(&connssl->ssl, polarssl_debug, data);
#endif
connssl->connecting_state = ssl_connect_2;
return CURLE_OK;
}
