ssl: remove GnuTLS support

It's too much work for now to redo everything.

Move the ssl context struct to transport.h

CMakeLists.txt

@@ -88,18 +88,9 @@ ENDIF ()
 
 FIND_PACKAGE(OpenSSL)
 IF (OPENSSL_FOUND)
-  ADD_DEFINITIONS(-DGIT_OPENSSL)
   ADD_DEFINITIONS(-DGIT_SSL)
   INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
   SET(SSL_LIBRARIES ${OPENSSL_LIBRARIES})
-ELSE()
-  FIND_PACKAGE(GnuTLS)
-  IF (GNUTLS_FOUND)
-    INCLUDE_DIRECTORIES(GNUTLS_INCLUDE_DIR)
-    ADD_DEFINITIONS(-DGIT_GNUTLS)
-    ADD_DEFINITIONS(-DGIT_SSL)
-    SET(SSL_LIBRARIES ${GNUTLS_LIBRARIES})
-  ENDIF()
 ENDIF()
 
 IF (THREADSAFE)

src/common.h

@@ -20,13 +20,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 
-#ifdef GIT_GNUTLS
-# include <gnutls/gnutls.h>
-#elif defined(GIT_OPENSSL)
-# include <openssl/ssl.h>
-# include <openssl/err.h>
-#endif
-
 #ifdef GIT_WIN32
 
 # include <io.h>
@@ -72,18 +65,6 @@ void giterr_clear(void);
 void giterr_set_str(int error_class, const char *string);
 void giterr_set_regex(const regex_t *regex, int error_code);
 
-#ifdef GIT_GNUTLS
-typedef struct gitno_ssl {
-	gnutls_session_t session;
-	gnutls_certificate_credentials_t cred;
-} gitno_ssl;
-#elif defined(GIT_OPENSSL)
-typedef struct gitno_ssl {
-	SSL_CTX *ctx;
-	SSL *ssl;
-} gitno_ssl;
-#endif
-
 #include "util.h"
 
 

src/netops.c

@@ -18,11 +18,7 @@
 #	endif
 #endif
 
-#ifdef GIT_GNUTLS
-# include <gnutls/openssl.h>
-# include <gnutls/gnutls.h>
-# include <gnutls/x509.h>
-#elif defined(GIT_OPENSSL)
+#ifdef GIT_SSL
 # include <openssl/ssl.h>
 # include <openssl/x509v3.h>
 #endif
@@ -55,13 +51,7 @@ static void net_set_error(const char *str)
 }
 #endif
 
-#ifdef GIT_GNUTLS
-static int ssl_set_error(int error)
-{
-	giterr_set(GITERR_NET, "SSL error: (%s) %s", gnutls_strerror_name(error), gnutls_strerror(error));
-	return -1;
-}
-#elif GIT_OPENSSL
+#ifdef GIT_SSL
 static int ssl_set_error(gitno_ssl *ssl, int error)
 {
 	int err;
@@ -85,23 +75,7 @@ void gitno_buffer_setup(git_transport *t, gitno_buffer *buf, char *data, unsigne
 #endif
 }
 
-#ifdef GIT_GNUTLS
-static int ssl_recv(gitno_ssl *ssl, void *data, size_t len)
-{
-	int ret;
-
-	do {
-		ret = gnutls_record_recv(ssl->session, data, len);
-	} while(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN);
-
-	if (ret < 0) {
-		ssl_set_error(ret);
-		return -1;
-	}
-
-	return ret;
-}
-#elif defined(GIT_OPENSSL)
+#ifdef GIT_SSL
 static int ssl_recv(gitno_ssl *ssl, void *data, size_t len)
 {
 	int ret;
@@ -174,11 +148,7 @@ int gitno_ssl_teardown(git_transport *t)
 	if (!t->encrypt)
 		return 0;
 
-#ifdef GIT_GNUTLS
-	gnutls_deinit(t->ssl.session);
-	gnutls_certificate_free_credentials(t->ssl.cred);
-	gnutls_global_deinit();
-#elif defined(GIT_OPENSSL)
+#ifdef GIT_SSL
 
 	do {
 		ret = SSL_shutdown(t->ssl.ssl);
@@ -193,7 +163,7 @@ int gitno_ssl_teardown(git_transport *t)
 }
 
 
-#ifdef GIT_OPENSSL
+#ifdef GIT_SSL
 /* Match host names according to RFC 2818 rules */
 static int match_host(const char *pattern, const char *host)
 {
@@ -294,44 +264,9 @@ static int verify_server_cert(git_transport *t, const char *host)
 
 	return 0;
 }
-#endif
 
 static int ssl_setup(git_transport *t, const char *host)
 {
-#ifdef GIT_GNUTLS
-	int ret;
-
-	if ((ret = gnutls_global_init()) < 0)
-		return ssl_set_error(ret);
-
-	if ((ret = gnutls_certificate_allocate_credentials(&t->ssl.cred)) < 0)
-		return ssl_set_error(ret);
-
-	gnutls_init(&t->ssl.session, GNUTLS_CLIENT);
-	//gnutls_certificate_set_verify_function(ssl->cred, SSL_VERIFY_NONE);
-	gnutls_credentials_set(t->ssl.session, GNUTLS_CRD_CERTIFICATE, t->ssl.cred);
-
-	if ((ret = gnutls_priority_set_direct (t->ssl.session, "NORMAL", NULL)) < 0)
-		return ssl_set_error(ret);
-
-	gnutls_transport_set_ptr(t->ssl.session, (gnutls_transport_ptr_t) t->socket);
-
-	do {
-		ret = gnutls_handshake(t->ssl.session);
-	} while (ret < 0 && !gnutls_error_is_fatal(ret));
-
-	if (ret < 0) {
-		ssl_set_error(ret);
-		goto on_error;
-	}
-
-	return 0;
-
-on_error:
-	gnutls_deinit(t->ssl.session);
-	gnutls_global_deinit();
-	return -1;
-#elif defined(GIT_OPENSSL)
 	int ret;
 
 	SSL_library_init();
@@ -359,11 +294,16 @@ on_error:
 		return -1;
 
 	return 0;
+}
 #else
+static int ssl_setup(git_transport *t, const char *host)
+{
 	GIT_UNUSED(t);
+	GIT_UNUSED(host);
 	return 0;
-#endif
 }
+#endif
+
 int gitno_connect(git_transport *t, const char *host, const char *port)
 {
 	struct addrinfo *info = NULL, *p;
@@ -410,26 +350,7 @@ int gitno_connect(git_transport *t, const char *host, const char *port)
 	return 0;
 }
 
-#ifdef GIT_GNUTLS
-static int send_ssl(gitno_ssl *ssl, const char *msg, size_t len)
-{
-	int ret;
-	size_t off = 0;
-
-	while (off < len) {
-		ret = gnutls_record_send(ssl->session, msg + off, len - off);
-		if (ret < 0) {
-			if (gnutls_error_is_fatal(ret))
-				return ssl_set_error(ret);
-
-			ret = 0;
-		}
-		off += ret;
-	}
-
-	return off;
-}
-#elif defined(GIT_OPENSSL)
+#ifdef GIT_SSL
 static int send_ssl(gitno_ssl *ssl, const char *msg, size_t len)
 {
 	int ret;

src/transport.h

@@ -12,6 +12,11 @@
 #include "vector.h"
 #include "posix.h"
 #include "common.h"
+#ifdef GIT_SSL
+# include <openssl/ssl.h>
+# include <openssl/err.h>
+#endif
+
 
 #define GIT_CAP_OFS_DELTA "ofs-delta"
 
@@ -20,6 +25,14 @@ typedef struct git_transport_caps {
 		ofs_delta:1;
 } git_transport_caps;
 
+#ifdef GIT_SSL
+typedef struct gitno_ssl {
+	SSL_CTX *ctx;
+	SSL *ssl;
+} gitno_ssl;
+#endif
+
+
 /*
  * A day in the life of a network operation
  * ========================================