1 files changed, 114 insertions, 0 deletions
diff --git a/turbotap/turbotap/turbotap.h b/turbotap/turbotap/turbotap.h
new file mode 100644
index 0000000..d1b0eda
--- /dev/null
+++ b/turbotap/turbotap/turbotap.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+
+#include <sys/socket.h>
+#include <vlib/vlib.h>
+
+#ifndef __TURBOTAP_H__
+#define __TURBOTAP_H__
+
+#define TUNGETSOCKFD _IOR('T', 224, int)
+#define MAX_SEND 256
+#define MAX_RECV 256
+
+#define TAP_MTU_DEFAULT 1500
+#define TAP_MTU_MAX 65535
+#define TAP_MTU_MIN 68
+
+#define foreach_turbotap_error                            \
+  /* Must be first. */                                  \
+ _(NONE, "no error")                                    \
+ _(READ, "read error")                                  \
+ _(BUFFER_ALLOCATION, "buffer allocation error")	\
+ _(UNKNOWN, "unknown error")
+
+typedef enum {
+#define _(sym,str) TURBOTAP_ERROR_##sym,
+  foreach_turbotap_error
+#undef _
+   TURBOTAP_N_ERROR,
+ } turbotap_error_t;
+
+typedef struct {
+  u32 unix_fd;
+  u32 unix_file_index;
+  u32 provision_fd;
+  u32 sw_if_index;              /* for counters */
+  u32 hw_if_index;
+  u32 is_promisc;
+  struct ifreq ifr;
+  u32 per_interface_next_index;
+  u8 active;                    /* for delete */
+
+  /* mtu count, mtu buffers */
+  u32 mtu_bytes;
+  u32 mtu_buffers;
+
+  /* turbotap */
+  int turbotap_fd;
+  int sock_fd;
+  int rx_ready;
+  struct mmsghdr rx_msg[MAX_RECV];
+  struct mmsghdr tx_msg[MAX_SEND];
+} turbotap_interface_t;
+
+typedef struct {
+  /* Vector of VLIB rx buffers to use. */
+  u32 * rx_buffers;
+
+  /* record and put back unused rx buffers */
+  u32 * unused_buffer_list;
+
+  /*  Default MTU for newly created turbotap interface. */
+  u32 mtu_bytes;
+
+  /* Vector of tap interfaces */
+  turbotap_interface_t * turbotap_interfaces;
+
+  /* Vector of deleted tap interfaces */
+  u32 * turbotap_inactive_interfaces;
+
+  /* Bitmap of tap interfaces with pending reads */
+  uword * pending_read_bitmap;
+
+  /* Hash table to find turbotap interface given hw_if_index */
+  uword * turbotap_interface_index_by_sw_if_index;
+
+  /* Hash table to find turbotap interface given unix fd */
+  uword * turbotap_interface_index_by_unix_fd;
+
+  /* renumbering table */
+  u32 * show_dev_instance_by_real_dev_instance;
+
+  /* 1 => disable CLI */
+  int is_disabled;
+
+  /* convenience */
+  vlib_main_t * vlib_main;
+  vnet_main_t * vnet_main;
+  unix_main_t * unix_main;
+} turbotap_main_t;
+
+extern vnet_device_class_t turbotap_dev_class;
+extern vlib_node_registration_t turbotap_rx_node;
+extern turbotap_main_t turbotap_main;
+
+int vnet_turbotap_connect(vlib_main_t * vm, u8 * intfc_name, u8 *hwaddr_arg,
+						u32 * sw_if_indexp);
+int vnet_turbotap_delete(vlib_main_t *vm, u32 sw_if_index);
+
+#endif