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/*
* 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.
*/
/*
* cli.h: command line interface
*
* 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_cli_h
#define included_vlib_cli_h
#include <vppinfra/format.h>
struct vlib_cli_command_t;
typedef struct
{
u32 min_char;
/* Indexed by name[position] - min_char. */
uword **bitmaps;
} vlib_cli_parse_position_t;
typedef struct
{
u8 *name;
u32 index;
} vlib_cli_sub_command_t;
typedef struct
{
u8 *name;
u32 rule_index;
u32 command_index;
} vlib_cli_sub_rule_t;
typedef struct
{
char *name;
char *short_help;
char *long_help;
/* Number of bytes in parsed data. Zero for vector. */
uword data_size;
unformat_function_t *unformat_function;
/* Opaque for unformat function. */
uword unformat_function_arg[2];
} vlib_cli_parse_rule_t;
/* CLI command callback function. */
typedef clib_error_t *(vlib_cli_command_function_t)
(struct vlib_main_t * vm,
unformat_input_t * input, struct vlib_cli_command_t * cmd);
typedef struct vlib_cli_command_t
{
/* Command path (e.g. "show something").
Spaces delimit elements of path. */
char *path;
/* Short/long help strings. */
char *short_help;
char *long_help;
/* Callback function. */
vlib_cli_command_function_t *function;
/* Opaque. */
uword function_arg;
/* Known MP-safe? */
uword is_mp_safe;
/* Sub commands for this command. */
vlib_cli_sub_command_t *sub_commands;
/* Hash table mapping name (e.g. last path element) to sub command index. */
uword *sub_command_index_by_name;
/* bitmap[p][c][i] says whether sub-command i has character
c in position p. */
vlib_cli_parse_position_t *sub_command_positions;
/* Hash table mapping name (e.g. last path element) to sub rule index. */
uword *sub_rule_index_by_name;
/* Vector of possible parse rules for this path. */
vlib_cli_sub_rule_t *sub_rules;
/* List of CLI commands, built by constructors */
struct vlib_cli_command_t *next_cli_command;
} vlib_cli_command_t;
typedef void (vlib_cli_output_function_t) (uword arg,
u8 * buffer, uword buffer_bytes);
typedef struct
{
/* Vector of all known commands. */
vlib_cli_command_t *commands;
/* Hash table mapping normalized path to index into all_commands. */
uword *command_index_by_path;
/* Vector of all known parse rules. */
vlib_cli_parse_rule_t *parse_rules;
/* Hash table mapping parse rule name to index into parse_rule vector. */
uword *parse_rule_index_by_name;
/* Data parsed for rules. */
void **parse_rule_data;
/* registration list added by constructors */
vlib_cli_command_t *cli_command_registrations;
} vlib_cli_main_t;
#ifndef CLIB_MARCH_VARIANT
#define VLIB_CLI_COMMAND(x,...) \
__VA_ARGS__ vlib_cli_command_t x; \
static void __vlib_cli_command_registration_##x (void) \
__attribute__((__constructor__)) ; \
static void __vlib_cli_command_registration_##x (void) \
{ \
vlib_main_t * vm = vlib_get_main(); \
vlib_cli_main_t *cm = &vm->cli_main; \
x.next_cli_command = cm->cli_command_registrations; \
cm->cli_command_registrations = &x; \
} \
static void __vlib_cli_command_unregistration_##x (void) \
__attribute__((__destructor__)) ; \
static void __vlib_cli_command_unregistration_##x (void) \
{ \
vlib_main_t * vm = vlib_get_main(); \
vlib_cli_main_t *cm = &vm->cli_main; \
VLIB_REMOVE_FROM_LINKED_LIST (cm->cli_command_registrations, &x, \
next_cli_command); \
} \
__VA_ARGS__ vlib_cli_command_t x
#else
/* create unused pointer to silence compiler warnings and get whole
function optimized out */
#define VLIB_CLI_COMMAND(x,...) \
static __clib_unused vlib_cli_command_t __clib_unused_##x
#endif
#define VLIB_CLI_PARSE_RULE(x) \
vlib_cli_parse_rule_t x
/* Output to current CLI connection. */
void vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...);
/* Process CLI input. */
void vlib_cli_input (struct vlib_main_t *vm,
unformat_input_t * input,
vlib_cli_output_function_t * function,
uword function_arg);
clib_error_t *vlib_cli_register (struct vlib_main_t *vm,
vlib_cli_command_t * c);
clib_error_t *vlib_cli_register_parse_rule (struct vlib_main_t *vm,
vlib_cli_parse_rule_t * c);
uword unformat_vlib_cli_sub_input (unformat_input_t * i, va_list * args);
/* Return an vector of strings consisting of possible auto-completions
* for a given input string */
u8 **vlib_cli_get_possible_completions (u8 * input_str);
#endif /* included_vlib_cli_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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