2 * Copyright (c) 2017-2019 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 #include <vnet/session/application_namespace.h>
17 #include <vnet/session/application.h>
18 #include <vnet/session/session_table.h>
19 #include <vnet/session/session.h>
20 #include <vnet/fib/fib_table.h>
21 #include <vppinfra/file.h>
22 #include <vppinfra/format_table.h>
23 #include <vlib/unix/unix.h>
26 * Hash table of application namespaces by app ns ids
28 uword *app_namespace_lookup_table;
31 * Pool of application namespaces
33 static app_namespace_t *app_namespace_pool;
35 static u8 app_sapi_enabled;
38 app_namespace_get (u32 index)
40 return pool_elt_at_index (app_namespace_pool, index);
44 app_namespace_get_from_id (const u8 *ns_id)
46 u32 index = app_namespace_index_from_id (ns_id);
47 if (index == APP_NAMESPACE_INVALID_INDEX)
49 return app_namespace_get (index);
53 app_namespace_index (app_namespace_t * app_ns)
55 return (app_ns - app_namespace_pool);
59 app_namespace_free (app_namespace_t *app_ns)
61 hash_unset_mem (app_namespace_lookup_table, app_ns->ns_id);
62 vec_free (app_ns->ns_id);
64 pool_put (app_namespace_pool, app_ns);
68 app_namespace_alloc (const u8 *ns_id)
70 app_namespace_t *app_ns;
72 pool_get (app_namespace_pool, app_ns);
73 clib_memset (app_ns, 0, sizeof (*app_ns));
75 app_ns->ns_id = vec_dup ((u8 *) ns_id);
76 vec_terminate_c_string (app_ns->ns_id);
78 hash_set_mem (app_namespace_lookup_table, app_ns->ns_id,
79 app_ns - app_namespace_pool);
85 vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t *a)
87 app_namespace_t *app_ns;
94 if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX
95 && !vnet_get_sw_interface_or_null (vnet_get_main (),
97 return SESSION_E_INVALID;
99 if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX)
102 fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP4,
105 fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP6,
108 if (a->sw_if_index == APP_NAMESPACE_INVALID_INDEX
109 && a->ip4_fib_id == APP_NAMESPACE_INVALID_INDEX)
110 return SESSION_E_INVALID;
112 app_ns = app_namespace_get_from_id (a->ns_id);
115 app_ns = app_namespace_alloc (a->ns_id);
116 st = session_table_alloc ();
117 session_table_init (st, FIB_PROTOCOL_MAX);
119 st->appns_index = app_namespace_index (app_ns);
120 app_ns->local_table_index = session_table_index (st);
123 app_ns->sock_name = vec_dup (a->sock_name);
124 vec_terminate_c_string (app_ns->sock_name);
127 /* Add socket for namespace,
128 * only at creation time */
129 if (app_sapi_enabled)
131 rv = appns_sapi_add_ns_socket (app_ns);
137 app_ns->ns_secret = a->secret;
138 app_ns->sw_if_index = a->sw_if_index;
139 app_ns->ip4_fib_index =
140 fib_table_find (FIB_PROTOCOL_IP4, a->ip4_fib_id);
141 app_ns->ip6_fib_index =
142 fib_table_find (FIB_PROTOCOL_IP6, a->ip6_fib_id);
143 session_lookup_set_tables_appns (app_ns);
148 ns_index = app_namespace_index_from_id (a->ns_id);
149 if (ns_index == APP_NAMESPACE_INVALID_INDEX)
150 return SESSION_E_INVALID;
152 app_ns = app_namespace_get (ns_index);
154 return SESSION_E_INVALID;
156 application_namespace_cleanup (app_ns);
158 if (app_sapi_enabled)
159 appns_sapi_del_ns_socket (app_ns);
161 st = session_table_get (app_ns->local_table_index);
163 session_table_free (st, FIB_PROTOCOL_MAX);
164 if (app_ns->sock_name)
165 vec_free (app_ns->sock_name);
167 app_namespace_free (app_ns);
174 app_namespace_id (app_namespace_t * app_ns)
176 return app_ns->ns_id;
180 app_namespace_index_from_id (const u8 * ns_id)
185 key = vec_dup ((u8 *) ns_id);
186 vec_terminate_c_string (key);
188 indexp = hash_get_mem (app_namespace_lookup_table, key);
191 return APP_NAMESPACE_INVALID_INDEX;
196 app_namespace_id_from_index (u32 index)
198 app_namespace_t *app_ns;
200 app_ns = app_namespace_get (index);
201 return app_namespace_id (app_ns);
205 app_namespace_get_fib_index (app_namespace_t * app_ns, u8 fib_proto)
207 return fib_proto == FIB_PROTOCOL_IP4 ?
208 app_ns->ip4_fib_index : app_ns->ip6_fib_index;
212 app_namespace_get_local_table (app_namespace_t * app_ns)
214 return session_table_get (app_ns->local_table_index);
218 appns_sapi_enable_disable (int is_enable)
220 /* This cannot be called with active sockets */
221 if (pool_elts (app_namespace_pool))
224 app_sapi_enabled = is_enable;
229 appns_sapi_enabled (void)
231 return app_sapi_enabled;
235 app_namespaces_init (void)
237 u8 *ns_id = format (0, "default");
239 if (!app_namespace_lookup_table)
240 app_namespace_lookup_table =
241 hash_create_vec (0, sizeof (u8), sizeof (uword));
244 * Allocate default namespace
247 /* clang-format off */
248 vnet_app_namespace_add_del_args_t a = {
252 .sw_if_index = APP_NAMESPACE_INVALID_INDEX,
255 /* clang-format on */
257 vnet_app_namespace_add_del (&a);
261 static clib_error_t *
262 app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
263 vlib_cli_command_t * cmd)
265 u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0;
267 unformat_input_t _line_input, *line_input = &_line_input;
268 u32 sw_if_index, fib_id = APP_NAMESPACE_INVALID_INDEX;
269 vnet_main_t *vnm = vnet_get_main ();
271 clib_error_t *error = 0;
274 session_cli_return_if_not_enabled ();
276 if (!unformat_user (input, unformat_line_input, line_input))
279 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
281 if (unformat (line_input, "add"))
283 else if (unformat (line_input, "del"))
285 else if (unformat (line_input, "id %_%v%_", &ns_id))
287 else if (unformat (line_input, "secret %lu", &secret))
289 else if (unformat (line_input, "sw_if_index %u", &sw_if_index))
291 else if (unformat (line_input, "if %U", unformat_vnet_sw_interface, vnm,
294 else if (unformat (line_input, "fib_id", &fib_id))
296 else if (unformat (line_input, "sock-name %_%v%_", &sock_name))
300 error = clib_error_return (0, "unknown input `%U'",
301 format_unformat_error, line_input);
308 vlib_cli_output (vm, "namespace-id must be provided");
312 if (is_add && (!secret_set || !sw_if_index_set))
314 vlib_cli_output (vm, "secret and interface must be provided");
318 /* clang-format off */
319 vnet_app_namespace_add_del_args_t args = {
322 .sw_if_index = sw_if_index,
323 .sock_name = sock_name,
324 .ip4_fib_id = fib_id,
327 /* clang-format on */
329 if ((rv = vnet_app_namespace_add_del (&args)))
330 error = clib_error_return (0, "app namespace add del returned %d", rv);
335 vec_free (sock_name);
336 unformat_free (line_input);
341 VLIB_CLI_COMMAND (app_ns_command, static) = {
343 .short_help = "app ns [add|del] id <namespace-id> secret <secret> "
344 "sw_if_index <sw_if_index> if <interface>",
345 .function = app_ns_fn,
349 format_app_namespace (u8 * s, va_list * args)
351 app_namespace_t *app_ns = va_arg (*args, app_namespace_t *);
352 vnet_main_t *vnm = vnet_get_main ();
354 s = format (s, "Application namespace [%u]\nid: %s\nsecret: %lu",
355 app_namespace_index (app_ns), app_ns->ns_id, app_ns->ns_secret);
356 if (app_ns->sw_if_index != (u32) ~0)
357 s = format (s, "\nInterface: %U", format_vnet_sw_if_index_name, vnm,
358 app_ns->sw_if_index);
359 if (app_ns->sock_name)
360 s = format (s, "\nSocket: %s", app_ns->sock_name);
366 app_namespace_show_api (vlib_main_t * vm, app_namespace_t * app_ns)
368 app_ns_api_handle_t *handle;
369 app_worker_t *app_wrk;
373 if (!app_sapi_enabled)
375 vlib_cli_output (vm, "app socket api not enabled!");
379 vlib_cli_output (vm, "socket: %v\n", app_ns->sock_name);
381 if (!pool_elts (app_ns->app_sockets))
384 vlib_cli_output (vm, "%12s%12s%5s", "app index", "wrk index", "fd");
387 pool_foreach (cs, app_ns->app_sockets) {
388 handle = (app_ns_api_handle_t *) &cs->private_data;
389 cf = clib_file_get (&file_main, handle->aah_file_index);
390 if (handle->aah_app_wrk_index == APP_INVALID_INDEX)
392 vlib_cli_output (vm, "%12d%12d%5u", -1, -1, cf->file_descriptor);
395 app_wrk = app_worker_get (handle->aah_app_wrk_index);
396 vlib_cli_output (vm, "%12d%12d%5u", app_wrk->app_index,
397 app_wrk->wrk_map_index, cf->file_descriptor);
401 static clib_error_t *
402 show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
403 vlib_cli_command_t * cmd)
405 unformat_input_t _line_input, *line_input = &_line_input;
406 u8 *ns_id = 0, do_table = 0, had_input = 1, do_api = 0;
407 app_namespace_t *app_ns;
408 vnet_main_t *vnm = vnet_get_main ();
410 table_t table = {}, *t = &table;
412 session_cli_return_if_not_enabled ();
414 if (!unformat_user (main_input, unformat_line_input, line_input))
420 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
422 if (unformat (line_input, "id %_%v%_", &ns_id))
424 else if (unformat (line_input, "api-clients"))
428 vlib_cli_output (vm, "unknown input [%U]", format_unformat_error,
438 vlib_cli_output (vm, "must specify a table for api");
441 app_ns = app_namespace_get_from_id (ns_id);
442 app_namespace_show_api (vm, app_ns);
447 app_ns = app_namespace_get_from_id (ns_id);
450 vlib_cli_output (vm, "ns %v not found", ns_id);
453 st = session_table_get (app_ns->local_table_index);
456 vlib_cli_output (vm, "table for ns %v could not be found", ns_id);
459 vlib_cli_output (vm, "%U", format_app_namespace, app_ns);
460 session_lookup_show_table_entries (vm, st, 0, 1);
466 table_add_header_col (t, 5, "Index", "Secret", "Interface", "Id", "Socket");
468 pool_foreach (app_ns, app_namespace_pool)
471 table_format_cell (t, i, j++, "%u", app_namespace_index (app_ns));
472 table_format_cell (t, i, j++, "%lu", app_ns->ns_secret);
473 table_format_cell (t, i, j++, "%U", format_vnet_sw_if_index_name, vnm,
474 app_ns->sw_if_index);
475 table_format_cell (t, i, j++, "%s", app_ns->ns_id);
476 table_format_cell (t, i++, j++, "%s", app_ns->sock_name);
479 t->default_body.align = TTAA_LEFT;
480 t->default_header_col.align = TTAA_LEFT;
481 t->default_header_col.fg_color = TTAC_YELLOW;
482 t->default_header_col.flags = TTAF_FG_COLOR_SET;
483 vlib_cli_output (vm, "%U", format_table, t);
488 unformat_free (line_input);
492 VLIB_CLI_COMMAND (show_app_ns_command, static) = {
493 .path = "show app ns",
494 .short_help = "show app ns [id <id> [api-clients]]",
495 .function = show_app_ns_fn,
499 * fd.io coding-style-patch-verification: ON
502 * eval: (c-set-style "gnu")