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 <vlib/unix/unix.h>
25 * Hash table of application namespaces by app ns ids
27 uword *app_namespace_lookup_table;
30 * Pool of application namespaces
32 static app_namespace_t *app_namespace_pool;
34 static u8 app_sapi_enabled;
37 app_namespace_get (u32 index)
39 return pool_elt_at_index (app_namespace_pool, index);
43 app_namespace_get_from_id (const u8 *ns_id)
45 u32 index = app_namespace_index_from_id (ns_id);
46 if (index == APP_NAMESPACE_INVALID_INDEX)
48 return app_namespace_get (index);
52 app_namespace_index (app_namespace_t * app_ns)
54 return (app_ns - app_namespace_pool);
58 app_namespace_alloc (const u8 *ns_id)
60 app_namespace_t *app_ns;
62 pool_get (app_namespace_pool, app_ns);
63 clib_memset (app_ns, 0, sizeof (*app_ns));
65 app_ns->ns_id = vec_dup ((u8 *) ns_id);
66 vec_terminate_c_string (app_ns->ns_id);
68 hash_set_mem (app_namespace_lookup_table, app_ns->ns_id,
69 app_ns - app_namespace_pool);
75 vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a)
77 app_namespace_t *app_ns;
83 if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX
84 && !vnet_get_sw_interface_or_null (vnet_get_main (),
86 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
89 if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX)
92 fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP4,
95 fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP6,
98 if (a->sw_if_index == APP_NAMESPACE_INVALID_INDEX
99 && a->ip4_fib_id == APP_NAMESPACE_INVALID_INDEX)
100 return VNET_API_ERROR_INVALID_VALUE;
102 app_ns = app_namespace_get_from_id (a->ns_id);
105 app_ns = app_namespace_alloc (a->ns_id);
106 st = session_table_alloc ();
107 session_table_init (st, FIB_PROTOCOL_MAX);
109 st->appns_index = app_namespace_index (app_ns);
110 app_ns->local_table_index = session_table_index (st);
112 app_ns->ns_secret = a->secret;
113 app_ns->netns = a->netns ? vec_dup (a->netns) : 0;
114 app_ns->sock_name = a->sock_name ? vec_dup (a->sock_name) : 0;
115 app_ns->sw_if_index = a->sw_if_index;
116 app_ns->ip4_fib_index =
117 fib_table_find (FIB_PROTOCOL_IP4, a->ip4_fib_id);
118 app_ns->ip6_fib_index =
119 fib_table_find (FIB_PROTOCOL_IP6, a->ip6_fib_id);
120 session_lookup_set_tables_appns (app_ns);
122 /* Add socket for namespace */
123 if (app_sapi_enabled)
125 rv = appns_sapi_add_ns_socket (app_ns);
132 return VNET_API_ERROR_UNIMPLEMENTED;
138 app_namespace_id (app_namespace_t * app_ns)
140 return app_ns->ns_id;
144 app_namespace_index_from_id (const u8 * ns_id)
149 key = vec_dup ((u8 *) ns_id);
150 vec_terminate_c_string (key);
152 indexp = hash_get_mem (app_namespace_lookup_table, key);
155 return APP_NAMESPACE_INVALID_INDEX;
160 app_namespace_id_from_index (u32 index)
162 app_namespace_t *app_ns;
164 app_ns = app_namespace_get (index);
165 return app_namespace_id (app_ns);
169 app_namespace_get_fib_index (app_namespace_t * app_ns, u8 fib_proto)
171 return fib_proto == FIB_PROTOCOL_IP4 ?
172 app_ns->ip4_fib_index : app_ns->ip6_fib_index;
176 app_namespace_get_local_table (app_namespace_t * app_ns)
178 return session_table_get (app_ns->local_table_index);
182 appns_sapi_enable (void)
184 app_sapi_enabled = 1;
188 appns_sapi_enabled (void)
190 return app_sapi_enabled;
194 app_namespaces_init (void)
196 u8 *ns_id = format (0, "default");
198 if (!app_namespace_lookup_table)
199 app_namespace_lookup_table =
200 hash_create_vec (0, sizeof (u8), sizeof (uword));
203 * Allocate default namespace
206 /* clang-format off */
207 vnet_app_namespace_add_del_args_t a = {
212 .sw_if_index = APP_NAMESPACE_INVALID_INDEX,
215 /* clang-format on */
217 vnet_app_namespace_add_del (&a);
221 static clib_error_t *
222 app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
223 vlib_cli_command_t * cmd)
225 u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0;
226 u8 *netns = 0, *sock_name = 0;
227 unformat_input_t _line_input, *line_input = &_line_input;
228 u32 sw_if_index, fib_id = APP_NAMESPACE_INVALID_INDEX;
229 vnet_main_t *vnm = vnet_get_main ();
231 clib_error_t *error = 0;
234 session_cli_return_if_not_enabled ();
236 if (!unformat_user (input, unformat_line_input, line_input))
239 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
241 if (unformat (line_input, "add"))
243 else if (unformat (line_input, "id %_%v%_", &ns_id))
245 else if (unformat (line_input, "secret %lu", &secret))
247 else if (unformat (line_input, "sw_if_index %u", &sw_if_index))
249 else if (unformat (line_input, "if %U", unformat_vnet_sw_interface, vnm,
252 else if (unformat (line_input, "fib_id", &fib_id))
254 else if (unformat (line_input, "netns %_%v%_", &netns))
256 else if (unformat (line_input, "sock-name %_%v%_", &sock_name))
260 error = clib_error_return (0, "unknown input `%U'",
261 format_unformat_error, line_input);
266 if (!ns_id || !secret_set || !sw_if_index_set)
268 vlib_cli_output (vm, "namespace-id, secret and interface must be "
275 /* clang-format off */
276 vnet_app_namespace_add_del_args_t args = {
279 .sock_name = sock_name,
281 .sw_if_index = sw_if_index,
282 .ip4_fib_id = fib_id,
285 /* clang-format on */
287 if ((rv = vnet_app_namespace_add_del (&args)))
288 error = clib_error_return (0, "app namespace add del returned %d", rv);
295 vec_free (sock_name);
296 unformat_free (line_input);
302 VLIB_CLI_COMMAND (app_ns_command, static) = {
304 .short_help = "app ns [add] id <namespace-id> secret <secret> "
305 "if <intfc> [netns <ns>]",
306 .function = app_ns_fn,
311 format_app_namespace (u8 * s, va_list * args)
313 app_namespace_t *app_ns = va_arg (*args, app_namespace_t *);
314 vnet_main_t *vnm = vnet_get_main ();
316 s = format (s, "Application namespace [%u]\nid: %s\nsecret: %lu",
317 app_namespace_index (app_ns), app_ns->ns_id, app_ns->ns_secret);
318 if (app_ns->sw_if_index != (u32) ~0)
319 s = format (s, "\nInterface: %U", format_vnet_sw_if_index_name, vnm,
320 app_ns->sw_if_index);
322 s = format (s, "\nNetns: %s", app_ns->netns);
323 if (app_ns->sock_name)
324 s = format (s, "\nSocket: %s", app_ns->sock_name);
330 app_namespace_show_api (vlib_main_t * vm, app_namespace_t * app_ns)
332 app_ns_api_handle_t *handle;
333 app_worker_t *app_wrk;
337 if (!app_sapi_enabled)
339 vlib_cli_output (vm, "app socket api not enabled!");
343 vlib_cli_output (vm, "socket: %v\n", app_ns->sock_name);
345 if (!pool_elts (app_ns->app_sockets))
348 vlib_cli_output (vm, "%12s%12s%5s", "app index", "wrk index", "fd");
352 pool_foreach (cs, app_ns->app_sockets) {
353 handle = (app_ns_api_handle_t *) &cs->private_data;
354 cf = clib_file_get (&file_main, handle->aah_file_index);
355 if (handle->aah_app_wrk_index == APP_INVALID_INDEX)
357 vlib_cli_output (vm, "%12d%12d%5u", -1, -1, cf->file_descriptor);
360 app_wrk = app_worker_get (handle->aah_app_wrk_index);
361 vlib_cli_output (vm, "%12d%12d%5u", app_wrk->app_index,
362 app_wrk->wrk_map_index, cf->file_descriptor);
367 static clib_error_t *
368 show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
369 vlib_cli_command_t * cmd)
371 unformat_input_t _line_input, *line_input = &_line_input;
372 u8 *ns_id = 0, do_table = 0, had_input = 1, do_api = 0;
373 app_namespace_t *app_ns;
374 vnet_main_t *vnm = vnet_get_main ();
377 session_cli_return_if_not_enabled ();
379 if (!unformat_user (main_input, unformat_line_input, line_input))
385 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
387 if (unformat (line_input, "id %_%v%_", &ns_id))
389 else if (unformat (line_input, "api-clients"))
393 vlib_cli_output (vm, "unknown input [%U]", format_unformat_error,
403 vlib_cli_output (vm, "must specify a table for api");
406 app_ns = app_namespace_get_from_id (ns_id);
407 app_namespace_show_api (vm, app_ns);
412 app_ns = app_namespace_get_from_id (ns_id);
415 vlib_cli_output (vm, "ns %v not found", ns_id);
418 st = session_table_get (app_ns->local_table_index);
421 vlib_cli_output (vm, "table for ns %v could not be found", ns_id);
424 vlib_cli_output (vm, "%U", format_app_namespace, app_ns);
425 session_lookup_show_table_entries (vm, st, 0, 1);
431 vlib_cli_output (vm, "%-10s%-10s%-12s%-15s%-20s%-40s", "Index", "Secret",
432 "Interface", "Id", "Netns", "Socket");
435 pool_foreach (app_ns, app_namespace_pool) {
436 vlib_cli_output (vm, "%-10u%-10lu%-12U%-15s%-20s%-40v",
437 app_namespace_index (app_ns), app_ns->ns_secret,
438 format_vnet_sw_if_index_name, vnm, app_ns->sw_if_index,
439 app_ns->ns_id, app_ns->netns, app_ns->sock_name);
445 unformat_free (line_input);
450 VLIB_CLI_COMMAND (show_app_ns_command, static) = {
451 .path = "show app ns",
452 .short_help = "show app ns [id <id> [api-clients]]",
453 .function = show_app_ns_fn,
458 * fd.io coding-style-patch-verification: ON
461 * eval: (c-set-style "gnu")