1 files changed, 108 insertions, 0 deletions
diff --git a/utils/extras/rtinject/tap_inject.h b/utils/extras/rtinject/tap_inject.h
new file mode 100644
index 000000000..ec5121a09
--- /dev/null
+++ b/utils/extras/rtinject/tap_inject.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2016 Intel Corporation
+ *
+ * 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.
+ */
+
+#ifndef _TAP_INJECT_H
+#define _TAP_INJECT_H
+
+#include <vnet/plugin/plugin.h>
+#include <vnet/ip/ip.h>
+
+#ifndef ETHER_ADDR_LEN
+#define ETHER_ADDR_LEN 6
+#endif
+
+typedef struct {
+  /*
+   * tap-inject can be enabled or disabled in config file or during runtime.
+   * When disabled in config, it is not possible to enable during runtime.
+   *
+   * When the netlink-only option is used, netlink configuration is monitored
+   * and mirrored to the data plane but no traffic is passed between the host
+   * and the data plane.
+   */
+#define TAP_INJECT_F_CONFIG_ENABLE  (1U << 0)
+#define TAP_INJECT_F_CONFIG_DISABLE (1U << 1)
+#define TAP_INJECT_F_CONFIG_NETLINK (1U << 2)
+#define TAP_INJECT_F_ENABLED        (1U << 3)
+
+  u32 flags;
+
+  u32 * sw_if_index_to_tap_fd;
+  u32 * sw_if_index_to_tap_if_index;
+  u32 * tap_fd_to_sw_if_index;
+  u32 * tap_if_index_to_sw_if_index;
+
+  u32 * interfaces_to_enable;
+  u32 * interfaces_to_disable;
+
+  u32 * rx_file_descriptors;
+
+  u32 rx_node_index;
+  u32 tx_node_index;
+  u32 neighbor_node_index;
+
+  u32 * rx_buffers;
+
+} tap_inject_main_t;
+
+
+tap_inject_main_t * tap_inject_get_main (void);
+
+void tap_inject_insert_tap (u32 sw_if_index, u32 tap_fd, u32 tap_if_index);
+void tap_inject_delete_tap (u32 sw_if_index);
+
+u32 tap_inject_lookup_tap_fd (u32 sw_if_index);
+u32 tap_inject_lookup_sw_if_index_from_tap_fd (u32 tap_fd);
+u32 tap_inject_lookup_sw_if_index_from_tap_if_index (u32 tap_if_index);
+
+static inline int
+tap_inject_is_enabled (void)
+{
+  tap_inject_main_t * im = tap_inject_get_main ();
+
+  return !!(im->flags & TAP_INJECT_F_ENABLED);
+}
+
+static inline int
+tap_inject_is_config_enabled (void)
+{
+  tap_inject_main_t * im = tap_inject_get_main ();
+
+  return !!(im->flags & TAP_INJECT_F_CONFIG_ENABLE);
+}
+
+static inline int
+tap_inject_is_config_disabled (void)
+{
+  tap_inject_main_t * im = tap_inject_get_main ();
+
+  return !!(im->flags & TAP_INJECT_F_CONFIG_DISABLE);
+}
+
+
+/* Netlink */
+
+void tap_inject_enable_netlink (void);
+
+
+/* Tap */
+
+clib_error_t * tap_inject_tap_connect (vnet_hw_interface_t * hw);
+clib_error_t * tap_inject_tap_disconnect (u32 sw_if_index);
+
+u8 * format_tap_inject_tap_name (u8 * s, va_list * args);
+
+#endif /* _TAP_INJECT_H */