added hash calculation

[umurmur.git] / src / ssli_gnutls.c

diff --git a/src/ssli_gnutls.c b/src/ssli_gnutls.c
index 9f6a16aecf18d849f9659c01d8dbbc7fa5f30c3c..e8b4609a052cf9bc7b5d8357c92557fb6bce21fd 100644 (file)
--- a/src/ssli_gnutls.c
+++ b/src/ssli_gnutls.c
@@ -2,10 +2,12 @@
 #include "conf.h"
 #include "log.h"
 
+#include <stdlib.h>
+
 static gnutls_dh_params_t dhParameters;
 static gnutls_certificate_credentials_t certificate;
 
-static const char * ciphers = "SECURE128:-VERS-DTLS-ALL:-VERS-SSL3.0:-VERS-TLS1.0:+COMP_ALL";
+static const char * ciphers = "NORMAL";
 static gnutls_priority_t cipherCache;
 
 void initializeCertificate()
@@ -60,7 +62,7 @@ void SSLi_deinit()
 
 SSL_handle_t * SSLi_newconnection( int * fileDescriptor, bool_t * isSSLReady )
   {
-  gnutls_session_t * session; // Maybe we need to calloc here
+  gnutls_session_t * session = calloc(1, sizeof(gnutls_session_t));
 
   gnutls_init(session, GNUTLS_SERVER);
   gnutls_priority_set(*session, cipherCache);
@@ -70,20 +72,64 @@ SSL_handle_t * SSLi_newconnection( int * fileDescriptor, bool_t * isSSLReady )
 
   gnutls_transport_set_int(*session, *fileDescriptor);
 
+  if(isSSLReady && SSLi_nonblockaccept(session, isSSLReady))
+    *isSSLReady = true;
+
+  return session;
+  }
+
+bool_t SSLi_getSHA1Hash(SSL_handle_t *session, uint8_t *hash)
+  {
+       gnutls_datum_t const * certificateData = gnutls_certificate_get_peers(*session, NULL);
+
+       size_t resultSize = 0;
+       int error = gnutls_fingerprint( GNUTLS_DIG_SHA1, certificateData, hash, &resultSize);
+       return error == GNUTLS_E_SUCCESS && resultSize == 20;
+  }
+
+int SSLi_nonblockaccept( SSL_handle_t *session, bool_t * isSSLReady )
+  {
   int error;
   do {
-  gnutls_handshake(*session);
+    error = gnutls_handshake(*session);
   } while(error < GNUTLS_E_SUCCESS && !gnutls_error_is_fatal(error));
 
   if ( error < GNUTLS_E_SUCCESS ) {
-    Log_fatal("TLS handshake failed with error %i (%s).", error, gnutls_strerror(error));
+    Log_warn("TLS handshake failed with error %i (%s).", error, gnutls_strerror(error));
   }
 
-  return session;
+  if(isSSLReady)
+    *isSSLReady = true;
+
+  return error;
+  }
+
+int SSLi_read(SSL_handle_t *session, uint8_t *buffer, int length)
+  {
+  return gnutls_record_recv(*session, buffer, length);
+  }
+
+int SSLi_write(SSL_handle_t *session, uint8_t *buffer, int length)
+  {
+  return gnutls_record_send(*session, buffer, length);
+  }
+
+int SSLi_get_error(SSL_handle_t *session, int code)
+  {
+  return code;
+  }
+
+bool_t SSLi_data_pending(SSL_handle_t *session)
+  {
+  return gnutls_record_check_pending(*session);
+  }
+
+void SSLi_shutdown(SSL_handle_t *session)
+  {
+  gnutls_bye(*session, GNUTLS_SHUT_WR);
   }
 
-bool_t SSLi_getSHA1Hash(SSL_handle_t *ssl, uint8_t *hash)
+void SSLi_free(SSL_handle_t *session)
   {
-  *hash = 0;
-  return true;
+  gnutls_deinit(*session);
   }