--- /dev/null
+;;; plugin-main-skel.el - vpp engine plug-in "main.c" skeleton
+;;;
+;;; Copyright (c) 2016 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.
+
+(require 'skeleton)
+
+(define-skeleton plugin-main-skel
+"Insert a plug-in 'main.c' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+/*
+ * " plugin-name ".c - skeleton vpp engine plug-in
+ *
+ * Copyright (c) <current-year> <your-organization>
+ * 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.
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <" plugin-name "/" plugin-name ".h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <" plugin-name "/" plugin-name "_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+#undef vl_api_version
+
+/*
+ * A handy macro to set up a message reply.
+ * Assumes that the following variables are available:
+ * mp - pointer to request message
+ * rmp - pointer to reply message type
+ * rv - return value
+ */
+
+#define REPLY_MACRO(t) \\
+do { \\
+ unix_shared_memory_queue_t * q = \\
+ vl_api_client_index_to_input_queue (mp->client_index); \\
+ if (!q) \\
+ return; \\
+ \\
+ rmp = vl_msg_api_alloc (sizeof (*rmp)); \\
+ rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \\
+ rmp->context = mp->context; \\
+ rmp->retval = ntohl(rv); \\
+ \\
+ vl_msg_api_send_shmem (q, (u8 *)&rmp); \\
+} while(0);
+
+
+/* List of message types that this plugin understands */
+
+#define foreach_" plugin-name "_plugin_api_msg \\
+_(" PLUGIN-NAME "_ENABLE_DISABLE, " plugin-name "_enable_disable)
+
+/*
+ * This routine exists to convince the vlib plugin framework that
+ * we haven't accidentally copied a random .dll into the plugin directory.
+ *
+ * Also collects global variable pointers passed from the vpp engine
+ */
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ " plugin-name "_main_t * sm = &" plugin-name "_main;
+ clib_error_t * error = 0;
+
+ sm->vlib_main = vm;
+ sm->vnet_main = h->vnet_main;
+ sm->ethernet_main = h->ethernet_main;
+
+ return error;
+}
+
+/* Action function shared between message handler and debug CLI */
+
+int " plugin-name "_enable_disable (" plugin-name "_main_t * sm, u32 sw_if_index,
+ int enable_disable)
+{
+ vnet_sw_interface_t * sw;
+ int rv;
+ u32 node_index = enable_disable ? " plugin-name "_node.index : ~0;
+
+ /* Utterly wrong? */
+ if (pool_is_free_index (sm->vnet_main->interface_main.sw_interfaces,
+ sw_if_index))
+ return VNET_API_ERROR_INVALID_SW_IF_INDEX;
+
+ /* Not a physical port? */
+ sw = vnet_get_sw_interface (sm->vnet_main, sw_if_index);
+ if (sw->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
+ return VNET_API_ERROR_INVALID_SW_IF_INDEX;
+
+ /*
+ * Redirect pkts from the driver to the macswap node.
+ * Returns VNET_API_ERROR_UNIMPLEMENTED if the h/w driver
+ * doesn't implement the API.
+ *
+ * Node_index = ~0 => shut off redirection
+ */
+ rv = vnet_hw_interface_rx_redirect_to_node (sm->vnet_main, sw_if_index,
+ node_index);
+ return rv;
+}
+
+static clib_error_t *
+" plugin-name "_enable_disable_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ " plugin-name "_main_t * sm = &" plugin-name "_main;
+ u32 sw_if_index = ~0;
+ int enable_disable = 1;
+
+ int rv;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
+ if (unformat (input, \"disable\"))
+ enable_disable = 0;
+ else if (unformat (input, \"%U\", unformat_vnet_sw_interface,
+ sm->vnet_main, &sw_if_index))
+ ;
+ else
+ break;
+ }
+
+ if (sw_if_index == ~0)
+ return clib_error_return (0, \"Please specify an interface...\");
+
+ rv = " plugin-name "_enable_disable (sm, sw_if_index, enable_disable);
+
+ switch(rv) {
+ case 0:
+ break;
+
+ case VNET_API_ERROR_INVALID_SW_IF_INDEX:
+ return clib_error_return
+ (0, \"Invalid interface, only works on physical ports\");
+ break;
+
+ case VNET_API_ERROR_UNIMPLEMENTED:
+ return clib_error_return (0, \"Device driver doesn't support redirection\");
+ break;
+
+ default:
+ return clib_error_return (0, \"" plugin-name "_enable_disable returned %d\",
+ rv);
+ }
+ return 0;
+}
+
+VLIB_CLI_COMMAND (" plugin-name "_enable_disable_command, static) = {
+ .path = \"" plugin-name " enable-disable\",
+ .short_help =
+ \"" plugin-name " enable-disable <interface-name> [disable]\",
+ .function = " plugin-name "_enable_disable_command_fn,
+};
+
+/* API message handler */
+static void vl_api_" plugin-name "_enable_disable_t_handler
+(vl_api_" plugin-name "_enable_disable_t * mp)
+{
+ vl_api_" plugin-name "_enable_disable_reply_t * rmp;
+ " plugin-name "_main_t * sm = &" plugin-name "_main;
+ int rv;
+
+ rv = " plugin-name "_enable_disable (sm, ntohl(mp->sw_if_index),
+ (int) (mp->enable_disable));
+
+ REPLY_MACRO(VL_API_" PLUGIN-NAME "_ENABLE_DISABLE_REPLY);
+}
+
+/* Set up the API message handling tables */
+static clib_error_t *
+" plugin-name "_plugin_api_hookup (vlib_main_t *vm)
+{
+ " plugin-name "_main_t * sm = &" plugin-name "_main;
+#define _(N,n) \\
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \\
+ #n, \\
+ vl_api_##n##_t_handler, \\
+ vl_noop_handler, \\
+ vl_api_##n##_t_endian, \\
+ vl_api_##n##_t_print, \\
+ sizeof(vl_api_##n##_t), 1);
+ foreach_" plugin-name "_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+static clib_error_t * " plugin-name "_init (vlib_main_t * vm)
+{
+ " plugin-name "_main_t * sm = &" plugin-name "_main;
+ clib_error_t * error = 0;
+ u8 * name;
+
+ name = format (0, \"" plugin-name "_%08x%c\", api_version, 0);
+
+ /* Ask for a correctly-sized block of API message decode slots */
+ sm->msg_id_base = vl_msg_api_get_msg_ids
+ ((char *) name, VL_MSG_FIRST_AVAILABLE);
+
+ error = " plugin-name "_plugin_api_hookup (vm);
+
+ vec_free(name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (" plugin-name "_init);
+")
+
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