]> ruderich.org/simon Gitweb - tlsproxy/tlsproxy.git/blobdiff - src/connection.c
Rename DEBUG log level to DEBUG1.
[tlsproxy/tlsproxy.git] / src / connection.c
index 2875b768b90ccf71714d03124f41c0de9fbe721c..170302c9fdaf9894267c91da2ebd4934a27a6843 100644 (file)
@@ -106,7 +106,7 @@ void handle_connection(int client_socket) {
      * certificate. */
     int validation_failed;
 
-    LOG(DEBUG, "new connection");
+    LOG(DEBUG1, "new connection");
 
     server_socket = -1;
     client_fd_read = NULL;
@@ -134,7 +134,7 @@ void handle_connection(int client_socket) {
         send_bad_request(client_fd_write);
         goto out;
     } else if (result == -3) {
-        LOG(DEBUG, "read_http_request(): proxy authentication failed");
+        LOG(DEBUG1, "read_http_request(): proxy authentication failed");
         send_authentication_required(client_fd_write);
         goto out;
     }
@@ -145,15 +145,15 @@ void handle_connection(int client_socket) {
         goto out;
     }
 
-    LOG(DEBUG, "target: %s:%s (HTTP 1.%d)", host, port, version_minor);
+    LOG(DEBUG1, "target: %s:%s (HTTP 1.%d)", host, port, version_minor);
 
     /* Connect to proxy server or directly to server. */
     if (global_proxy_host != NULL && global_proxy_port != NULL) {
-        LOG(DEBUG, "connecting to %s:%s", global_proxy_host,
-                                              global_proxy_port);
+        LOG(DEBUG1, "connecting to %s:%s", global_proxy_host,
+                                           global_proxy_port);
         server_socket = connect_to_host(global_proxy_host, global_proxy_port);
     } else {
-        LOG(DEBUG, "connecting to %s:%s", host, port);
+        LOG(DEBUG1, "connecting to %s:%s", host, port);
         server_socket = connect_to_host(host, port);
     }
 
@@ -194,7 +194,7 @@ void handle_connection(int client_socket) {
         }
     }
 
-    LOG(DEBUG, "connection to server established");
+    LOG(DEBUG1, "connection to server established");
 
     /* If the -u option is used and we don't know this hostname's server
      * certificate then just pass through the connection and let the client
@@ -209,13 +209,13 @@ void handle_connection(int client_socket) {
             fprintf(client_fd_write, "\r\n");
             fflush(client_fd_write);
 
-            LOG(DEBUG, "transferring data");
+            LOG(DEBUG1, "transferring data");
 
             /* Proxy data between client and server until one side is done
              * (EOF or error). */
             transfer_data(client_socket, server_socket);
 
-            LOG(DEBUG, "finished transferring data");
+            LOG(DEBUG1, "finished transferring data");
 
             goto out;
         }
@@ -235,19 +235,19 @@ void handle_connection(int client_socket) {
     }
     server_session_init = 1;
 
-    LOG(DEBUG, "starting server TLS handshake");
+    LOG(DEBUG1, "starting server TLS handshake");
 
     /* Try to establish TLS handshake between us and server. */
     result = gnutls_handshake(server_session);
     if (result != GNUTLS_E_SUCCESS) {
         LOG(WARNING, "server TLS handshake failed: %s",
-                         gnutls_strerror(result));
+                     gnutls_strerror(result));
         send_forwarding_failure(client_fd_write);
         goto out;
     }
     server_session_started = 1;
 
-    LOG(DEBUG, "server TLS handshake finished");
+    LOG(DEBUG1, "server TLS handshake finished");
 
     /* Make sure the server certificate is valid and known. */
     if (verify_tls_connection(server_session, host) != 0) {
@@ -278,19 +278,19 @@ void handle_connection(int client_socket) {
     fprintf(client_fd_write, "\r\n");
     fflush(client_fd_write);
 
-    LOG(DEBUG, "starting client TLS handshake");
+    LOG(DEBUG1, "starting client TLS handshake");
 
     /* Try to establish TLS handshake between client and us. */
     result = gnutls_handshake(client_session);
     if (result != GNUTLS_E_SUCCESS) {
         LOG(WARNING, "client TLS handshake failed: %s",
-                         gnutls_strerror(result));
+                     gnutls_strerror(result));
         send_forwarding_failure(client_fd_write);
         goto out;
     }
     client_session_started = 1;
 
-    LOG(DEBUG, "client TLS handshake finished");
+    LOG(DEBUG1, "client TLS handshake finished");
 
     /* Tell the client that the verification failed. Shouldn't be necessary as
      * the client should terminate the connection because he received the
@@ -300,14 +300,14 @@ void handle_connection(int client_socket) {
         goto out;
     }
 
-    LOG(DEBUG, "transferring TLS data");
+    LOG(DEBUG1, "transferring TLS data");
 
     /* Proxy data between client and server until one side is done (EOF or
      * error). */
     transfer_data_tls(client_socket, server_socket,
                       client_session, server_session);
 
-    LOG(DEBUG, "finished transferring TLS data");
+    LOG(DEBUG1, "finished transferring TLS data");
 
 out:
     /* Close TLS sessions if necessary. Use GNUTLS_SHUT_RDWR so the data is
@@ -338,7 +338,7 @@ out:
     } else if (server_socket != -1) {
         close(server_socket);
     }
-    LOG(DEBUG, "connection to server closed");
+    LOG(DEBUG1, "connection to server closed");
     /* Close connection to client. */
     if (client_fd_read != NULL) {
         if (client_fd_write != NULL) {
@@ -348,9 +348,9 @@ out:
     } else {
         close(client_socket);
     }
-    LOG(DEBUG, "connection to client closed");
+    LOG(DEBUG1, "connection to client closed");
 
-    LOG(DEBUG, "connection finished");
+    LOG(DEBUG1, "connection finished");
 }
 
 
@@ -368,16 +368,16 @@ static int initialize_tls_session_client(int peer_socket,
 
     if (proxy_certificate_path(hostname, path, sizeof(path)) != 0) {
         LOG(ERROR,
-            "initialize_tls_session_client(): \
-failed to get proxy certificate path");
+            "initialize_tls_session_client(): "
+            "failed to get proxy certificate path");
         return -1;
     }
 
     result = gnutls_certificate_allocate_credentials(x509_cred);
     if (result != GNUTLS_E_SUCCESS) {
         LOG(ERROR,
-            "initialize_tls_session_client(): \
-gnutls_certificate_allocate_credentials(): %s",
+            "initialize_tls_session_client(): "
+            "gnutls_certificate_allocate_credentials(): %s",
             gnutls_strerror(result));
         return -1;
     }
@@ -413,8 +413,8 @@ gnutls_certificate_allocate_credentials(): %s",
     }
     if (result != GNUTLS_E_SUCCESS) {
         LOG(ERROR,
-            "initialize_tls_session_client(): \
-can't read server certificate ('%s') or key file ('%s'): %s",
+            "initialize_tls_session_client(): "
+            "can't read server certificate ('%s') or key file ('%s'): %s",
             path, PROXY_KEY_FILE, gnutls_strerror(result));
         gnutls_certificate_free_credentials(*x509_cred);
         /* Could be a missing certificate. */
@@ -463,8 +463,8 @@ static int initialize_tls_session_server(int peer_socket,
     result = gnutls_certificate_allocate_credentials(x509_cred);
     if (result != GNUTLS_E_SUCCESS) {
         LOG(ERROR,
-            "initialize_tls_session_server(): \
-gnutls_certificate_allocate_credentials(): %s",
+            "initialize_tls_session_server(): "
+            "gnutls_certificate_allocate_credentials(): %s",
             gnutls_strerror(result));
         return -1;
     }
@@ -618,6 +618,8 @@ static void transfer_data(int client, int server) {
     fds[1].events  = POLLIN | POLLPRI | POLLHUP | POLLERR;
     fds[1].revents = 0;
 
+    LOG(DEBUG1, "transfer_data(): %d -> %d", client, server);
+
     for (;;) {
         int result = poll(fds, 2 /* fd count */, -1 /* no timeout */);
         if (result < 0) {
@@ -658,8 +660,6 @@ static int read_from_write_to(int from, int to) {
     ssize_t size_written;
     char buffer[4096];
 
-    LOG(DEBUG, "read_from_write_to(): %d -> %d", from, to);
-
     size_read = read(from, buffer, sizeof(buffer));
     if (size_read < 0) {
         LOG_PERROR(WARNING, "read_from_write_to(): read()");
@@ -676,7 +676,7 @@ static int read_from_write_to(int from, int to) {
     }
     if (size_read != size_written) {
         LOG(ERROR, "read_from_write_to(): only written %ld of %ld bytes!",
-                       (long int)size_written, (long int)size_read);
+                   (long int)size_written, (long int)size_read);
         return -1;
     }
 
@@ -703,8 +703,8 @@ static void transfer_data_tls(int client, int server,
     if (gnutls_record_get_max_size(server_session) < buffer_size) {
         buffer_size = gnutls_record_get_max_size(server_session);
     }
-    LOG(DEBUG, "transfer_data_tls(): suggested buffer size: %ld",
-                   (long int)buffer_size);
+    LOG(DEBUG1, "transfer_data_tls(): suggested buffer size: %ld",
+                (long int)buffer_size);
 
     for (;;) {
         int result = poll(fds, 2 /* fd count */, -1 /* no timeout */);
@@ -750,15 +750,15 @@ static int read_from_write_to_tls(gnutls_session_t from,
     char buffer[16384];
 
     if (buffer_size > sizeof(buffer)) {
+        LOG(WARNING, "read_from_write_to_tls(): reduced buffer size to %ld",
+                     (long int)(sizeof(buffer)));
         buffer_size = sizeof(buffer);
     }
-    LOG(DEBUG, "read_from_write_to_tls(): used buffer size: %ld",
-                   (long int)buffer_size);
 
     size_read = gnutls_record_recv(from, buffer, buffer_size);
     if (size_read < 0) {
         LOG(WARNING, "read_from_write_to_tls(): gnutls_record_recv(): %s",
-                         gnutls_strerror((int)size_read));
+                     gnutls_strerror((int)size_read));
         return -1;
     /* EOF */
     } else if (size_read == 0) {
@@ -768,12 +768,12 @@ static int read_from_write_to_tls(gnutls_session_t from,
     size_written = gnutls_record_send(to, buffer, (size_t)size_read);
     if (size_written < 0) {
         LOG(WARNING, "read_from_write_to_tls(): gnutls_record_send(): %s",
-                         gnutls_strerror((int)size_written));
+                     gnutls_strerror((int)size_written));
         return -1;
     }
     if (size_read != size_written) {
         LOG(ERROR, "read_from_write_to_tls(): only written %ld of %ld bytes!",
-                       (long int)size_written, (long int)size_read);
+                   (long int)size_written, (long int)size_read);
         return -1;
     }
 
@@ -807,7 +807,7 @@ static int connect_to_host(const char *hostname, const char *port) {
             LOG_PERROR(WARNING, "connect_to_host(): getaddrinfo()");
         } else {
             LOG(WARNING, "connect_to_host(): getaddrinfo(): %s",
-                             gai_strerror(gai_return));
+                         gai_strerror(gai_return));
         }
         return -1;
     }
@@ -819,14 +819,14 @@ static int connect_to_host(const char *hostname, const char *port) {
                                server->ai_socktype,
                                server->ai_protocol);
         if (server_socket < 0) {
-            LOG_PERROR(DEBUG, "connect_to_host(): socket(), trying next");
+            LOG_PERROR(DEBUG1, "connect_to_host(): socket(), trying next");
             continue;
         }
 
         if (connect(server_socket, server->ai_addr, server->ai_addrlen) == 0) {
             break;
         }
-        LOG_PERROR(DEBUG, "connect_to_host(): connect(), trying next");
+        LOG_PERROR(DEBUG1, "connect_to_host(): connect(), trying next");
 
         close(server_socket);
     }