/* * 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. */ /* * init.h: mechanism for functions to be called at init/exit. * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef included_vlib_init_h #define included_vlib_init_h #include #include #include /* Init/exit functions: called at start/end of main routine. Init functions are typically used to register and setup packet processing nodes. */ typedef clib_error_t *(vlib_init_function_t) (struct vlib_main_t * vm); typedef struct _vlib_init_function_list_elt { struct _vlib_init_function_list_elt *next_init_function; vlib_init_function_t *f; char *name; char **runs_before; char **runs_after; char **init_order; } _vlib_init_function_list_elt_t; /* Configuration functions: called with configuration input just before main polling loop starts. */ typedef clib_error_t *(vlib_config_function_t) (struct vlib_main_t * vm, unformat_input_t * input); typedef struct vlib_config_function_runtime_t { /* Function to call. Set to null once function has already been called. */ vlib_config_function_t *function; /* Input for function. */ unformat_input_t input; /* next config function registration */ struct vlib_config_function_runtime_t *next_registration; /* To be invoked as soon as the clib heap is available */ u8 is_early; /* Name used to distinguish input on command line. */ char name[32]; } vlib_config_function_runtime_t; #define VLIB_REMOVE_FROM_LINKED_LIST(first,p,next) \ { \ ASSERT (first); \ if (first == p) \ first = (p)->next; \ else \ { \ __typeof__ (p) current = first; \ while (current->next) \ { \ if (current->next == p) \ { \ current->next = current->next->next; \ break; \ } \ current = current->next; \ } \ ASSERT (current); \ } \ } #define _VLIB_INIT_FUNCTION_SYMBOL(x, type) \ _vlib_##type##_function_##x #define VLIB_INIT_FUNCTION_SYMBOL(x) \ _VLIB_INIT_FUNCTION_SYMBOL(x, init) #define VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL(x) \ _VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_enter) #define VLIB_MAIN_LOOP_EXIT_FUNCTION_SYMBOL(x) \ _VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_exit) #define VLIB_CONFIG_FUNCTION_SYMBOL(x) \ _VLIB_INIT_FUNCTION_SYMBOL(x, config) /* Declaration is global (e.g. not static) so that init functions can be called from other modules to resolve init function depend. */ #ifndef CLIB_MARCH_VARIANT #define VLIB_DECLARE_INIT_FUNCTION(x, tag) \ vlib_init_function_t *_VLIB_INIT_FUNCTION_SYMBOL (x, tag) = x; \ static void __vlib_add_##tag##_function_##x (void) \ __attribute__ ((__constructor__)); \ static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x; \ static void __vlib_add_##tag##_function_##x (void) \ { \ vlib_global_main_t *vgm = vlib_get_global_main (); \ _vlib_init_function_##tag##_##x.next_init_function = \ vgm->tag##_function_registrations; \ vgm->tag##_function_registrations = &_vlib_init_function_##tag##_##x; \ _vlib_init_function_##tag##_##x.f = &x; \ _vlib_init_function_##tag##_##x.name = #x; \ } \ static void __vlib_rm_##tag##_function_##x (void) \ __attribute__ ((__destructor__)); \ static void __vlib_rm_##tag##_function_##x (void) \ { \ vlib_global_main_t *vgm = vlib_get_global_main (); \ _vlib_init_function_list_elt_t *this, *prev; \ this = vgm->tag##_function_registrations; \ if (this == 0) \ return; \ if (this->f == &x) \ { \ vgm->tag##_function_registrations = this->next_init_function; \ return; \ } \ prev = this; \ this = this->next_init_function; \ while (this) \ { \ if (this->f == &x) \ { \ prev->next_init_function = this->next_init_function; \ return; \ } \ prev = this; \ this = this->next_init_function; \ } \ } \ static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x #else /* create unused pointer to silence compiler warnings and get whole function optimized out */ #define VLIB_DECLARE_INIT_FUNCTION(x, tag) \ static __clib_unused void * __clib_unused_##tag##_##x = x #endif #define VLIB_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,init) #define VLIB_WORKER_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,worker_init) #define VLIB_NUM_WORKERS_CHANGE_FN(x) \ VLIB_DECLARE_INIT_FUNCTION (x, num_workers_change) #define VLIB_MAIN_LOOP_ENTER_FUNCTION(x) \ VLIB_DECLARE_INIT_FUNCTION(x,main_loop_enter) #define VLIB_MAIN_LOOP_EXIT_FUNCTION(x) \ VLIB_DECLARE_INIT_FUNCTION(x,main_loop_exit) #ifndef CLIB_MARCH_VARIANT #define VLIB_CONFIG_FUNCTION(x, n, ...) \ __VA_ARGS__ vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \ static void __vlib_add_config_function_##x (void) \ __attribute__ ((__constructor__)); \ static void __vlib_add_config_function_##x (void) \ { \ vlib_global_main_t *vgm = vlib_get_global_main (); 
{#
# Copyright (c) 2016 Comcast Cable Communications Management, LLC.
#
# 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.
#}
# Debug CLI    {{'{#'}}clicmd}

The VPP network stack comes equipped with a set of commands that are useful
for debugging.

The easiest way to access the CLI (with proper permissions) is to use the
vppctl command:

```
sudo vppctl <cli-command>
```

The CLI parser matches static keyword strings, eventually invoking an action
function. Unambiguous partial keyword