2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 * cli.h: command line interface
18 * Copyright (c) 2008 Eliot Dresselhaus
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 #ifndef included_vlib_cli_h
41 #define included_vlib_cli_h
43 #include <vppinfra/format.h>
45 struct vlib_cli_command_t;
51 /* Indexed by name[position] - min_char. */
53 } vlib_cli_parse_position_t;
60 } vlib_cli_sub_command_t;
69 } vlib_cli_sub_rule_t;
77 /* Number of bytes in parsed data. Zero for vector. */
80 unformat_function_t *unformat_function;
82 /* Opaque for unformat function. */
83 uword unformat_function_arg[2];
84 } vlib_cli_parse_rule_t;
86 /* CLI command callback function. */
87 typedef clib_error_t *(vlib_cli_command_function_t)
88 (struct vlib_main_t * vm,
89 unformat_input_t * input, struct vlib_cli_command_t * cmd);
91 typedef struct vlib_cli_command_t
93 /* Command path (e.g. "show something").
94 Spaces delimit elements of path. */
97 /* Short/long help strings. */
101 /* Callback function. */
102 vlib_cli_command_function_t *function;
110 /* Sub commands for this command. */
111 vlib_cli_sub_command_t *sub_commands;
113 /* Hash table mapping name (e.g. last path element) to sub command index. */
114 uword *sub_command_index_by_name;
116 /* bitmap[p][c][i] says whether sub-command i has character
118 vlib_cli_parse_position_t *sub_command_positions;
120 /* Hash table mapping name (e.g. last path element) to sub rule index. */
121 uword *sub_rule_index_by_name;
123 /* Vector of possible parse rules for this path. */
124 vlib_cli_sub_rule_t *sub_rules;
126 /* List of CLI commands, built by constructors */
127 struct vlib_cli_command_t *next_cli_command;
129 } vlib_cli_command_t;
131 typedef void (vlib_cli_output_function_t) (uword arg,
132 u8 * buffer, uword buffer_bytes);
135 /* Vector of all known commands. */
136 vlib_cli_command_t *commands;
138 /* Hash table mapping normalized path to index into all_commands. */
139 uword *command_index_by_path;
141 /* Vector of all known parse rules. */
142 vlib_cli_parse_rule_t *parse_rules;
144 /* Hash table mapping parse rule name to index into parse_rule vector. */
145 uword *parse_rule_index_by_name;
147 /* Data parsed for rules. */
148 void **parse_rule_data;
150 /* registration list added by constructors */
151 vlib_cli_command_t *cli_command_registrations;
154 #define VLIB_CLI_COMMAND(x,...) \
155 __VA_ARGS__ vlib_cli_command_t x; \
156 static void __vlib_cli_command_registration_##x (void) \
157 __attribute__((__constructor__)) ; \
158 static void __vlib_cli_command_registration_##x (void) \
160 vlib_main_t * vm = vlib_get_main(); \
161 vlib_cli_main_t *cm = &vm->cli_main; \
162 x.next_cli_command = cm->cli_command_registrations; \
163 cm->cli_command_registrations = &x; \
165 static void __vlib_cli_command_unregistration_##x (void) \
166 __attribute__((__destructor__)) ; \
167 static void __vlib_cli_command_unregistration_##x (void) \
169 vlib_main_t * vm = vlib_get_main(); \
170 vlib_cli_main_t *cm = &vm->cli_main; \
171 VLIB_REMOVE_FROM_LINKED_LIST (cm->cli_command_registrations, &x, \
174 __VA_ARGS__ vlib_cli_command_t x
175 #define VLIB_CLI_PARSE_RULE(x) \
176 vlib_cli_parse_rule_t x
177 /* Output to current CLI connection. */
178 void vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...);
180 /* Process CLI input. */
181 void vlib_cli_input (struct vlib_main_t *vm,
182 unformat_input_t * input,
183 vlib_cli_output_function_t * function,
186 clib_error_t *vlib_cli_register (struct vlib_main_t *vm,
187 vlib_cli_command_t * c);
188 clib_error_t *vlib_cli_register_parse_rule (struct vlib_main_t *vm,
189 vlib_cli_parse_rule_t * c);
191 uword unformat_vlib_cli_sub_input (unformat_input_t * i, va_list * args);
193 /* Return an vector of strings consisting of possible auto-completions
194 * for a given input string */
195 u8 **vlib_cli_get_possible_completions (u8 * input_str);
197 #endif /* included_vlib_cli_h */
200 * fd.io coding-style-patch-verification: ON
203 * eval: (c-set-style "gnu")