--- /dev/null
+How to construct a complete plugin using the emacs skeletons
+
+0. Install open-vpp, including the development package.
+
+1. Load emacs skeletons
+
+ M-x find-file all-skel.el
+ M-x eval-buffer
+
+2. Pick a single-word, lower-case name for your plugin. For example: macswap.
+Hereafter, we'll refer to the selected name as <plugin-name>.
+
+3. Generate the entire plugin:
+
+ M-x make-plugin
+ Plugin-name: <plugin-name>
+
+Or, generate each file individually:
+
+3. Create the required directories, e.g. under .../vpp
+
+ $ mkdir -p <plugin-name>-plugin/<plugin-name>
+
+4. Create <plugin-name>-plugin/{configure.ac,Makefile.am}
+
+ M-x find-file <plugin-name>-plugin/configure.ac
+ M-x plugin-configure-skel
+
+ M-x find-file <plugin-name>-plugin/Makefile.am
+ M-x plugin-makefile.skel
+
+5. Create the api skeleton
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>.api
+ M-x plugin-api-skel
+
+6. Create the api message enumeration header file
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>_msg_enum.h
+ M-x plugin-msg-enum-skel
+
+7. Create the "all-api" header file
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>_all_api_h.h
+ M-x plugin-all-apih-skel
+
+8. Create the main data structure definition header file
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>.h
+ M-x plugin-h-skel
+
+9. Create the plugin main C file
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>.c
+ M-x plugin-main-skel
+
+10. Create the vpp-api-test plugin main C file
+ M-x find-file <plugin-name>-plugin/<plugin-name>/<plugin-name>_test.c
+ M-x plugin-test-skel
+
+11. Create the data plane packet processing node
+ M-x find-file <plugin-name>-plugin/<plugin-name>/node.c
+ M-x plugin-node-skel
+
+12. Process autotools input files
+
+ $ cd <plugin-name>-plugin
+ $ autoreconf -i -f
+
+13. Build the plugin skeleton
+
+ $ mkdir build
+ $ cd build
+ $ ../configure --with-plugin-toolkit
+ $ make
+ $ sudo make install
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+;;; 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.
+
+;; plugin all-in-1 program
+
+(load-file "./plugin.el")
+
;; list of clib / vlib / vnet / vpp skeleton files
(load-file "./cli-cmd-skel.el")
-(load-file "./pipe-skel.el")
+(load-file "./config-skel.el")
(load-file "./dual-loop-skel.el")
(load-file "./periodic-skel.el")
-(load-file "./config-skel.el")
+(load-file "./pipe-skel.el")
+(load-file "./plugin-all-apih-skel.el")
+(load-file "./plugin-api-skel.el")
+(load-file "./plugin-configure-skel.el")
+(load-file "./plugin-h-skel.el")
+(load-file "./plugin-main-skel.el")
+(load-file "./plugin-makefile-skel.el")
+(load-file "./plugin-msg-enum-skel.el")
+(load-file "./plugin-node-skel.el")
+(load-file "./plugin-test-skel.el")
(load-file "./tunnel-c-skel.el")
-(load-file "./tunnel-h-skel.el")
-(load-file "./tunnel-encap-skel.el")
(load-file "./tunnel-decap-skel.el")
+(load-file "./tunnel-encap-skel.el")
+(load-file "./tunnel-h-skel.el")
--- /dev/null
+;;; plugin-all-apih-skel.el - vpp engine plug-in "all-apih.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-all-apih-skel
+"Insert a plug-in 'all_api_h.h' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+/*
+ * " plugin-name "_all_api_h.h - skeleton vpp engine plug-in api #include file
+ *
+ * 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 the generated file, see BUILT_SOURCES in Makefile.am */
+#include <" plugin-name "/" plugin-name ".api.h>
+")
--- /dev/null
+;;; plugin-api-skel.el - vpp engine plug-in "all-apih.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-api-skel
+"Insert a plug-in '<name>.api' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+/* Define a simple enable-disable binary API to control the feature */
+
+define " plugin-name "_enable_disable {
+ /* Client identifier, set from api_main.my_client_index */
+ u32 client_index;
+
+ /* Arbitrary context, so client can match reply to request */
+ u32 context;
+
+ /* Enable / disable the feature */
+ u8 enable_disable;
+
+ /* Interface handle */
+ u32 sw_if_index;
+};
+
+define " plugin-name "_enable_disable_reply {
+ /* From the request */
+ u32 context;
+
+ /* Return value, zero means all OK */
+ i32 retval;
+};
+")
--- /dev/null
+;;; plugin-configure-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-configure-skel
+"Insert a plug-in 'configure.ac' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+AC_INIT(" plugin-name "_plugin, 1.0)
+AM_INIT_AUTOMAKE
+
+AC_PROG_LIBTOOL
+AM_PROG_AS
+AC_PROG_CC
+AM_PROG_CC_C_O
+
+AC_ARG_WITH(plugin-toolkit,
+ AC_HELP_STRING([--with-plugin-toolkit],
+ [build using the vpp toolkit]),
+ [with_plugin_toolkit=${prefix}/include],
+ [with_plugin_toolkit=.])
+
+AC_SUBST(TOOLKIT_INCLUDE,[${with_plugin_toolkit}])
+AM_CONDITIONAL(WITH_PLUGIN_TOOLKIT, test \"$with_plugin_toolkit\" != \".\")
+AC_OUTPUT([Makefile])
+")
--- /dev/null
+;;; plugin-h-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-h-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 ".h - skeleton vpp engine plug-in header file
+ *
+ * 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.
+ */
+#ifndef __included_" plugin-name "_h__
+#define __included_" plugin-name "_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/error.h>
+
+typedef struct {
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+ ethernet_main_t * ethernet_main;
+} " plugin-name "_main_t;
+
+" plugin-name "_main_t " plugin-name "_main;
+
+vlib_node_registration_t " plugin-name "_node;
+
+#endif /* __included_" plugin-name "_h__ */
+")
--- /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);
+")
+
--- /dev/null
+;;; plugin-makefile-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-makefile-skel
+"Insert a plug-in 'Makefile.am' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+# 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.
+
+AUTOMAKE_OPTIONS = foreign subdir-objects
+
+AM_CFLAGS = -Wall -I@TOOLKIT_INCLUDE@
+
+lib_LTLIBRARIES = " plugin-name "_plugin.la " plugin-name "_test_plugin.la
+" plugin-name "_plugin_la_SOURCES = " plugin-name "/" plugin-name ".c \\
+ " plugin-name "/node.c \\
+ " plugin-name "/" plugin-name "_plugin.api.h
+" plugin-name "_plugin_la_LDFLAGS = -module
+
+BUILT_SOURCES = " plugin-name "/" plugin-name ".api.h
+
+SUFFIXES = .api.h .api
+
+%.api.h: %.api
+ mkdir -p `dirname $@` ; \\
+ $(CC) $(CPPFLAGS) -E -P -C -x c $^ \\
+ | vppapigen --input - --output $@ --show-name $@
+
+nobase_include_HEADERS = \\
+ " plugin-name "/" plugin-name "_all_api_h.h \\
+ " plugin-name "/" plugin-name "_msg_enum.h \\
+ " plugin-name "/" plugin-name ".api.h
+
+" plugin-name "_test_plugin_la_SOURCES = \\
+ " plugin-name "/" plugin-name "_test.c " plugin-name "/" plugin-name "_plugin.api.h
+" plugin-name "_test_plugin_la_LDFLAGS = -module
+
+if WITH_PLUGIN_TOOLKIT
+install-data-hook:
+ mkdir /usr/lib/vpp_plugins || true
+ mkdir /usr/lib/vpp_api_test_plugins || true
+ cp $(prefix)/lib/" plugin-name "_plugin.so.*.*.* /usr/lib/vpp_plugins
+ cp $(prefix)/lib/" plugin-name "_test_plugin.so.*.*.* \\
+ /usr/lib/vpp_api_test_plugins
+ rm -f $(prefix)/lib/" plugin-name "_plugin.*
+ rm -f $(prefix)/lib/" plugin-name "_test_plugin.*
+endif
+")
--- /dev/null
+;;; plugin-msg-enum-skel.el - vpp engine plug-in message enum 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-msg-enum-skel
+"Insert a plug-in message enumeration skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+/*
+ * " plugin-name "_msg_enum.h - skeleton vpp engine plug-in message enumeration
+ *
+ * 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.
+ */
+#ifndef included_" plugin-name "_msg_enum_h
+#define included_" plugin-name "_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+ /* We'll want to know how many messages IDs we need... */
+ VL_MSG_FIRST_AVAILABLE,
+} vl_msg_id_t;
+#undef vl_msg_id
+
+#endif /* included_" plugin-name "_msg_enum_h */
+")
--- /dev/null
+;;; plugin-node-skel.el - vpp engine plug-in "node.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-node-skel
+"Insert a plug-in 'node.c' skeleton "
+nil
+'(if (not (boundp 'plugin-name))
+ (setq plugin-name (read-string "Plugin name: ")))
+'(setq PLUGIN-NAME (upcase plugin-name))
+"
+/*
+ * node.c - skeleton vpp engine plug-in dual-loop node skeleton
+ *
+ * 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 <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vppinfra/error.h>
+#include <" plugin-name "/" plugin-name ".h>
+
+typedef struct {
+ u32 next_index;
+ u32 sw_if_index;
+} " plugin-name "_trace_t;
+
+/* packet trace format function */
+static u8 * format_" plugin-name "_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ " plugin-name "_trace_t * t = va_arg (*args, " plugin-name "_trace_t *);
+
+ s = format (s, \"" PLUGIN-NAME ": sw_if_index %d, next index %d\",
+ t->sw_if_index, t->next_index);
+ return s;
+}
+
+vlib_node_registration_t " plugin-name "_node;
+
+#define foreach_" plugin-name "_error \\
+_(SWAPPED, \"Mac swap packets processed\")
+
+typedef enum {
+#define _(sym,str) " PLUGIN-NAME "_ERROR_##sym,
+ foreach_" plugin-name "_error
+#undef _
+ " PLUGIN-NAME "_N_ERROR,
+} " plugin-name "_error_t;
+
+static char * " plugin-name "_error_strings[] = {
+#define _(sym,string) string,
+ foreach_" plugin-name "_error
+#undef _
+};
+
+typedef enum {
+ " PLUGIN-NAME "_NEXT_INTERFACE_OUTPUT,
+ " PLUGIN-NAME "_N_NEXT,
+} " plugin-name "_next_t;
+
+#define foreach_mac_address_offset \\
+_(0) \\
+_(1) \\
+_(2) \\
+_(3) \\
+_(4) \\
+_(5)
+
+static uword
+" plugin-name "_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, * from, * to_next;
+ " plugin-name "_next_t next_index;
+ u32 pkts_swapped = 0;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index,
+ to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 next0 = " PLUGIN-NAME "_NEXT_INTERFACE_OUTPUT;
+ u32 next1 = " PLUGIN-NAME "_NEXT_INTERFACE_OUTPUT;
+ u32 sw_if_index0, sw_if_index1;
+ u8 tmp0[6], tmp1[6];
+ ethernet_header_t *en0, *en1;
+ u32 bi0, bi1;
+ vlib_buffer_t * b0, * b1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t * p2, * p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
+ }
+
+ /* speculatively enqueue b0 and b1 to the current next frame */
+ to_next[0] = bi0 = from[0];
+ to_next[1] = bi1 = from[1];
+ from += 2;
+ to_next += 2;
+ n_left_from -= 2;
+ n_left_to_next -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+
+ ASSERT (b0->current_data == 0);
+ ASSERT (b1->current_data == 0);
+
+ en0 = vlib_buffer_get_current (b0);
+ en1 = vlib_buffer_get_current (b1);
+
+ /* This is not the fastest way to swap src + dst mac addresses */
+#define _(a) tmp0[a] = en0->src_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en0->src_address[a] = en0->dst_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en0->dst_address[a] = tmp0[a];
+ foreach_mac_address_offset;
+#undef _
+
+#define _(a) tmp1[a] = en1->src_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en1->src_address[a] = en1->dst_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en1->dst_address[a] = tmp1[a];
+ foreach_mac_address_offset;
+#undef _
+
+
+
+ sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
+ sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
+
+ /* Send pkt back out the RX interface */
+ vnet_buffer(b0)->sw_if_index[VLIB_TX] = sw_if_index0;
+ vnet_buffer(b1)->sw_if_index[VLIB_TX] = sw_if_index1;
+
+ pkts_swapped += 2;
+
+ if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ " plugin-name "_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ " plugin-name "_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = sw_if_index1;
+ t->next_index = next1;
+ }
+ }
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t * b0;
+ u32 next0 = " PLUGIN-NAME "_NEXT_INTERFACE_OUTPUT;
+ u32 sw_if_index0;
+ u8 tmp0[6];
+ ethernet_header_t *en0;
+
+ /* speculatively enqueue b0 to the current next frame */
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ /*
+ * Direct from the driver, we should be at offset 0
+ * aka at &b0->data[0]
+ */
+ ASSERT (b0->current_data == 0);
+
+ en0 = vlib_buffer_get_current (b0);
+
+ /* This is not the fastest way to swap src + dst mac addresses */
+#define _(a) tmp0[a] = en0->src_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en0->src_address[a] = en0->dst_address[a];
+ foreach_mac_address_offset;
+#undef _
+#define _(a) en0->dst_address[a] = tmp0[a];
+ foreach_mac_address_offset;
+#undef _
+
+ sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
+
+ /* Send pkt back out the RX interface */
+ vnet_buffer(b0)->sw_if_index[VLIB_TX] = sw_if_index0;
+
+ if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED))) {
+ " plugin-name "_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ t->next_index = next0;
+ }
+
+ pkts_swapped += 1;
+
+ /* verify speculative enqueue, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, " plugin-name "_node.index,
+ " PLUGIN-NAME "_ERROR_SWAPPED, pkts_swapped);
+ return frame->n_vectors;
+}
+
+VLIB_REGISTER_NODE (" plugin-name "_node) = {
+ .function = " plugin-name "_node_fn,
+ .name = \"" plugin-name "\",
+ .vector_size = sizeof (u32),
+ .format_trace = format_" plugin-name "_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(" plugin-name "_error_strings),
+ .error_strings = " plugin-name "_error_strings,
+
+ .n_next_nodes = " PLUGIN-NAME "_N_NEXT,
+
+ /* edit / add dispositions here */
+ .next_nodes = {
+ [" PLUGIN-NAME "_NEXT_INTERFACE_OUTPUT] = \"interface-output\",
+ },
+};
+")
--- /dev/null
+;;; plugin-test-skel.el - vpp-api-test plug-in 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-test-skel
+"Insert a plug-in vpp-api-test 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-api-test 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 <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vppinfra/error.h>
+
+uword unformat_sw_if_index (unformat_input_t * input, va_list * args);
+
+/* Declare 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
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <" plugin-name "/" plugin-name "_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#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
+
+
+typedef struct {
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} " plugin-name "_test_main_t;
+
+" plugin-name "_test_main_t " plugin-name "_test_main;
+
+#define foreach_standard_reply_retval_handler \\
+_(" plugin-name "_enable_disable_reply)
+
+#define _(n) \\
+ static void vl_api_##n##_t_handler \\
+ (vl_api_##n##_t * mp) \\
+ { \\
+ vat_main_t * vam = " plugin-name "_test_main.vat_main; \\
+ i32 retval = ntohl(mp->retval); \\
+ if (vam->async_mode) { \\
+ vam->async_errors += (retval < 0); \\
+ } else { \\
+ vam->retval = retval; \\
+ vam->result_ready = 1; \\
+ } \\
+ }
+foreach_standard_reply_retval_handler;
+#undef _
+
+/*
+ * Table of message reply handlers, must include boilerplate handlers
+ * we just generated
+ */
+#define foreach_vpe_api_reply_msg \\
+_(" PLUGIN-NAME "_ENABLE_DISABLE_REPLY, " plugin-name "_enable_disable_reply)
+
+
+/* M: construct, but don't yet send a message */
+
+#define M(T,t) \\
+do { \\
+ vam->result_ready = 0; \\
+ mp = vl_msg_api_alloc(sizeof(*mp)); \\
+ memset (mp, 0, sizeof (*mp)); \\
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \\
+ mp->client_index = vam->my_client_index; \\
+} while(0);
+
+#define M2(T,t,n) \\
+do { \\
+ vam->result_ready = 0; \\
+ mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \\
+ memset (mp, 0, sizeof (*mp)); \\
+ mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \\
+ mp->client_index = vam->my_client_index; \\
+} while(0);
+
+/* S: send a message */
+#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
+
+/* W: wait for results, with timeout */
+#define W \\
+do { \\
+ timeout = vat_time_now (vam) + 1.0; \\
+ \\
+ while (vat_time_now (vam) < timeout) { \\
+ if (vam->result_ready == 1) { \\
+ return (vam->retval); \\
+ } \\
+ } \\
+ return -99; \\
+} while(0);
+
+static int api_" plugin-name "_enable_disable (vat_main_t * vam)
+{
+ " plugin-name "_test_main_t * sm = &" plugin-name "_test_main;
+ unformat_input_t * i = vam->input;
+ f64 timeout;
+ int enable_disable = 1;
+ u32 sw_if_index = ~0;
+ vl_api_" plugin-name "_enable_disable_t * mp;
+
+ /* Parse args required to build the message */
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT) {
+ if (unformat (i, \"%U\", unformat_sw_if_index, vam, &sw_if_index))
+ ;
+ else if (unformat (i, \"sw_if_index %d\", &sw_if_index))
+ ;
+ else if (unformat (i, \"disable\"))
+ enable_disable = 0;
+ else
+ break;
+ }
+
+ if (sw_if_index == ~0) {
+ errmsg (\"missing interface name / explicit sw_if_index number \\n\");
+ return -99;
+ }
+
+ /* Construct the API message */
+ M(" PLUGIN-NAME "_ENABLE_DISABLE, " plugin-name "_enable_disable);
+ mp->sw_if_index = ntohl (sw_if_index);
+ mp->enable_disable = enable_disable;
+
+ /* send it... */
+ S;
+
+ /* Wait for a reply... */
+ W;
+}
+
+/*
+ * List of messages that the api test plugin sends,
+ * and that the data plane plugin processes
+ */
+#define foreach_vpe_api_msg \\
+_(" plugin-name "_enable_disable, \"<intfc> [disable]\")
+
+void vat_api_hookup (vat_main_t *vam)
+{
+ " plugin-name "_test_main_t * sm = &" plugin-name "_test_main;
+ /* Hook up handlers for replies from the data plane plug-in */
+#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_vpe_api_reply_msg;
+#undef _
+
+ /* API messages we can send */
+#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n);
+ foreach_vpe_api_msg;
+#undef _
+
+ /* Help strings */
+#define _(n,h) hash_set_mem (vam->help_by_name, #n, h);
+ foreach_vpe_api_msg;
+#undef _
+}
+
+clib_error_t * vat_plugin_register (vat_main_t *vam)
+{
+ " plugin-name "_test_main_t * sm = &" plugin-name "_test_main;
+ u8 * name;
+
+ sm->vat_main = vam;
+
+ /* Ask the vpp engine for the first assigned message-id */
+ name = format (0, \"" plugin-name "_%08x%c\", api_version, 0);
+ sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
+
+ if (sm->msg_id_base != (u16) ~0)
+ vat_api_hookup (vam);
+
+ vec_free(name);
+
+ return 0;
+}
+")
--- /dev/null
+(defun make-plugin ()
+ "Create a plugin"
+ (interactive)
+ (save-excursion
+ (let (cd-args cmd-args start-dir)
+ (setq start-dir default-directory)
+ (makunbound 'plugin-name)
+ (makunbound 'PLUGIN-NAME)
+ (setq plugin-name (read-string "Plugin name: "))
+ (setq PLUGIN-NAME (upcase plugin-name))
+ (setq cmd-args (concat "mkdir -p " plugin-name "-plugin/" plugin-name))
+ (shell-command cmd-args)
+ (setq cd-args (concat start-dir plugin-name "-plugin"))
+ (setq default-directory cd-args)
+ (find-file "Makefile.am")
+ (plugin-makefile-skel)
+ (find-file "configure.ac")
+ (plugin-configure-skel)
+ (setq default-directory (concat cd-args "/" plugin-name))
+ (find-file (concat plugin-name ".api"))
+ (plugin-api-skel)
+ (find-file (concat plugin-name "_all_api_h.h"))
+ (plugin-all-apih-skel)
+ (find-file (concat plugin-name ".h"))
+ (plugin-h-skel)
+ (find-file (concat plugin-name ".c"))
+ (plugin-main-skel)
+ (find-file (concat plugin-name "_msg_enum.h"))
+ (plugin-msg-enum-skel)
+ (find-file "node.c")
+ (plugin-node-skel)
+ (find-file (concat plugin-name "_test.c"))
+ (plugin-test-skel)
+ (cd start-dir))))
+
Code Review / vpp.git / commitdiff