static CURLcode
darwinssl_connect_step2(struct connectdata *conn, int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
OSStatus err;
SSLCipherSuite cipher;
DEBUGASSERT(ssl_connect_2 == connssl->connecting_state
|| ssl_connect_2_reading == connssl->connecting_state
|| ssl_connect_2_writing == connssl->connecting_state);
/* Here goes nothing: */
err = SSLHandshake(connssl->ssl_ctx);
if(err != noErr) {
switch (err) {
case errSSLWouldBlock: /* they're not done with us yet */
connssl->connecting_state = connssl->ssl_direction ?
ssl_connect_2_writing : ssl_connect_2_reading;
return CURLE_OK;
break;
case errSSLServerAuthCompleted:
/* the documentation says we need to call SSLHandshake() again */
return darwinssl_connect_step2(conn, sockindex);
case errSSLXCertChainInvalid:
case errSSLUnknownRootCert:
case errSSLNoRootCert:
case errSSLCertExpired:
failf(data, "SSL certificate problem: OSStatus %d", err);
return CURLE_SSL_CACERT;
break;
default:
failf(data, "Unknown SSL protocol error in connection to %s:%d",
conn->host.name, err);
return CURLE_SSL_CONNECT_ERROR;
break;
}
}
else {
/* we have been connected fine, we're not waiting for anything else. */
connssl->connecting_state = ssl_connect_3;
/* Informational message */
(void)SSLGetNegotiatedCipher(connssl->ssl_ctx, &cipher);
infof (data, "SSL connection using %s\n", CipherNameForNumber(cipher));
return CURLE_OK;
}
}
static CURLcode
darwinssl_connect_common(struct connectdata *conn,
int sockindex,
bool nonblocking,
bool *done)
{
CURLcode retcode;
struct SessionHandle *data = conn->data;
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
curl_socket_t sockfd = conn->sock[sockindex];
long timeout_ms;
int what;
/* check if the connection has already been established */
if(ssl_connection_complete == connssl->state) {
*done = TRUE;
return CURLE_OK;
}
if(ssl_connect_1==connssl->connecting_state) {
/* Find out how much more time we're allowed */
timeout_ms = Curl_timeleft(data, NULL, TRUE);
if(timeout_ms < 0) {
/* no need to continue if time already is up */
failf(data, "SSL connection timeout");
return CURLE_OPERATION_TIMEDOUT;
}
retcode = darwinssl_connect_step1(conn, sockindex);
if(retcode)
return retcode;
}
while(ssl_connect_2 == connssl->connecting_state ||
ssl_connect_2_reading == connssl->connecting_state ||
ssl_connect_2_writing == connssl->connecting_state) {
/* check allowed time left */
timeout_ms = Curl_timeleft(data, NULL, TRUE);
if(timeout_ms < 0) {
/* no need to continue if time already is up */
failf(data, "SSL connection timeout");
return CURLE_OPERATION_TIMEDOUT;
}
/* if ssl is expecting something, check if it's available. */
if(connssl->connecting_state == ssl_connect_2_reading
|| connssl->connecting_state == ssl_connect_2_writing) {
curl_socket_t writefd = ssl_connect_2_writing ==
connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
curl_socket_t readfd = ssl_connect_2_reading ==
connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
what = Curl_socket_ready(readfd, writefd, nonblocking?0:timeout_ms);
if(what < 0) {
/* fatal error */
failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
return CURLE_SSL_CONNECT_ERROR;
}
else if(0 == what) {
if(nonblocking) {
*done = FALSE;
return CURLE_OK;
}
else {
/* timeout */
failf(data, "SSL connection timeout");
return CURLE_OPERATION_TIMEDOUT;
}
}
/* socket is readable or writable */
}
/* Run transaction, and return to the caller if it failed or if this
* connection is done nonblocking and this loop would execute again. This
* permits the owner of a multi handle to abort a connection attempt
* before step2 has completed while ensuring that a client using select()
* or epoll() will always have a valid fdset to wait on.
*/
retcode = darwinssl_connect_step2(conn, sockindex);
if(retcode || (nonblocking &&
(ssl_connect_2 == connssl->connecting_state ||
ssl_connect_2_reading == connssl->connecting_state ||
ssl_connect_2_writing == connssl->connecting_state)))
return retcode;
} /* repeat step2 until all transactions are done. */
if(ssl_connect_3==connssl->connecting_state) {
retcode = darwinssl_connect_step3(conn, sockindex);
if(retcode)
return retcode;
}
if(ssl_connect_done==connssl->connecting_state) {
connssl->state = ssl_connection_complete;
conn->recv[sockindex] = darwinssl_recv;
conn->send[sockindex] = darwinssl_send;
*done = TRUE;
}
else
*done = FALSE;
/* Reset our connect state machine */
connssl->connecting_state = ssl_connect_1;
return CURLE_OK;
}
static CURLcode
darwinssl_connect_step2(struct connectdata *conn, int sockindex)
{
struct SessionHandle *data = conn->data;
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
OSStatus err;
SSLCipherSuite cipher;
SSLProtocol protocol = 0;
DEBUGASSERT(ssl_connect_2 == connssl->connecting_state
|| ssl_connect_2_reading == connssl->connecting_state
|| ssl_connect_2_writing == connssl->connecting_state);
/* Here goes nothing: */
err = SSLHandshake(connssl->ssl_ctx);
if(err != noErr) {
switch (err) {
case errSSLWouldBlock: /* they're not done with us yet */
connssl->connecting_state = connssl->ssl_direction ?
ssl_connect_2_writing : ssl_connect_2_reading;
return CURLE_OK;
case errSSLServerAuthCompleted:
/* the documentation says we need to call SSLHandshake() again */
return darwinssl_connect_step2(conn, sockindex);
case errSSLXCertChainInvalid:
case errSSLUnknownRootCert:
case errSSLNoRootCert:
case errSSLCertExpired:
failf(data, "SSL certificate problem: OSStatus %d", err);
return CURLE_SSL_CACERT;
case errSSLHostNameMismatch:
failf(data, "SSL certificate peer verification failed, the "
"certificate did not match \"%s\"\n", conn->host.dispname);
return CURLE_PEER_FAILED_VERIFICATION;
default:
failf(data, "Unknown SSL protocol error in connection to %s:%d",
conn->host.name, err);
return CURLE_SSL_CONNECT_ERROR;
}
}
else {
/* we have been connected fine, we're not waiting for anything else. */
connssl->connecting_state = ssl_connect_3;
/* Informational message */
(void)SSLGetNegotiatedCipher(connssl->ssl_ctx, &cipher);
(void)SSLGetNegotiatedProtocolVersion(connssl->ssl_ctx, &protocol);
switch (protocol) {
case kSSLProtocol2:
infof(data, "SSL 2.0 connection using %s\n",
SSLCipherNameForNumber(cipher));
break;
case kSSLProtocol3:
infof(data, "SSL 3.0 connection using %s\n",
SSLCipherNameForNumber(cipher));
break;
case kTLSProtocol1:
infof(data, "TLS 1.0 connection using %s\n",
TLSCipherNameForNumber(cipher));
break;
#if defined(__MAC_10_8) || defined(__IPHONE_5_0)
case kTLSProtocol11:
infof(data, "TLS 1.1 connection using %s\n",
TLSCipherNameForNumber(cipher));
break;
case kTLSProtocol12:
infof(data, "TLS 1.2 connection using %s\n",
TLSCipherNameForNumber(cipher));
break;
#endif
default:
infof(data, "Unknown protocol connection\n");
break;
}
return CURLE_OK;
}
}
