| /* |
| * Copyright (c) 2017 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. |
| */ |
| |
| #include <vnet/session/application_namespace.h> |
| #include <vnet/session/session_table.h> |
| #include <vnet/session/session.h> |
| #include <vnet/fib/fib_table.h> |
| |
| /** |
| * Hash table of application namespaces by app ns ids |
| */ |
| uword *app_namespace_lookup_table; |
| |
| /** |
| * Pool of application namespaces |
| */ |
| static app_namespace_t *app_namespace_pool; |
| |
| app_namespace_t * |
| app_namespace_get (u32 index) |
| { |
| return pool_elt_at_index (app_namespace_pool, index); |
| } |
| |
| app_namespace_t * |
| app_namespace_get_from_id (const u8 * ns_id) |
| { |
| u32 index = app_namespace_index_from_id (ns_id); |
| if (index == APP_NAMESPACE_INVALID_INDEX) |
| return 0; |
| return app_namespace_get (index); |
| } |
| |
| u32 |
| app_namespace_index (app_namespace_t * app_ns) |
| { |
| return (app_ns - app_namespace_pool); |
| } |
| |
| app_namespace_t * |
| app_namespace_alloc (u8 * ns_id) |
| { |
| app_namespace_t *app_ns; |
| pool_get (app_namespace_pool, app_ns); |
| memset (app_ns, 0, sizeof (*app_ns)); |
| app_ns->ns_id = vec_dup (ns_id); |
| hash_set_mem (app_namespace_lookup_table, app_ns->ns_id, |
| app_ns - app_namespace_pool); |
| return app_ns; |
| } |
| |
| clib_error_t * |
| vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a) |
| { |
| app_namespace_t *app_ns; |
| session_table_t *st; |
| |
| if (a->is_add) |
| { |
| if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX |
| && !vnet_get_sw_interface_safe (vnet_get_main (), a->sw_if_index)) |
| return clib_error_return_code (0, VNET_API_ERROR_INVALID_SW_IF_INDEX, |
| 0, "sw_if_index %u doesn't exist", |
| a->sw_if_index); |
| |
| if (a->sw_if_index != APP_NAMESPACE_INVALID_INDEX) |
| { |
| a->ip4_fib_id = |
| fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP4, |
| a->sw_if_index); |
| a->ip6_fib_id = |
| fib_table_get_table_id_for_sw_if_index (FIB_PROTOCOL_IP4, |
| a->sw_if_index); |
| } |
| if (a->sw_if_index == APP_NAMESPACE_INVALID_INDEX |
| && a->ip4_fib_id == APP_NAMESPACE_INVALID_INDEX) |
| return clib_error_return_code (0, VNET_API_ERROR_INVALID_VALUE, 0, |
| "sw_if_index or fib_id must be " |
| "configured"); |
| st = session_table_alloc (); |
| session_table_init (st); |
| |
| app_ns = app_namespace_get_from_id (a->ns_id); |
| if (!app_ns) |
| app_ns = app_namespace_alloc (a->ns_id); |
| app_ns->ns_secret = a->secret; |
| app_ns->sw_if_index = a->sw_if_index; |
| app_ns->local_table_index = session_table_index (st); |
| app_ns->ip4_fib_index = |
| fib_table_find (FIB_PROTOCOL_IP4, a->ip4_fib_id); |
| app_ns->ip6_fib_index = |
| fib_table_find (FIB_PROTOCOL_IP6, a->ip6_fib_id); |
| } |
| else |
| { |
| return clib_error_return_code (0, VNET_API_ERROR_UNIMPLEMENTED, 0, |
| "namespace deletion not supported"); |
| } |
| return 0; |
| } |
| |
| const u8 * |
| app_namespace_id (app_namespace_t * app_ns) |
| { |
| return app_ns->ns_id; |
| } |
| |
| u32 |
| app_namespace_index_from_id (const u8 * ns_id) |
| { |
| uword *indexp; |
| indexp = hash_get_mem (app_namespace_lookup_table, ns_id); |
| if (!indexp) |
| return APP_NAMESPACE_INVALID_INDEX; |
| return *indexp; |
| } |
| |
| const u8 * |
| app_namespace_id_from_index (u32 index) |
| { |
| app_namespace_t *app_ns; |
| |
| app_ns = app_namespace_get (index); |
| return app_namespace_id (app_ns); |
| } |
| |
| void |
| app_namespaces_init (void) |
| { |
| u8 *ns_id = format (0, "default"); |
| app_namespace_lookup_table = |
| hash_create_vec (0, sizeof (u8), sizeof (uword)); |
| |
| /* |
| * Allocate default namespace |
| */ |
| vnet_app_namespace_add_del_args_t a = { |
| .ns_id = ns_id, |
| .secret = 0, |
| .sw_if_index = APP_NAMESPACE_INVALID_INDEX, |
| .is_add = 1 |
| }; |
| vnet_app_namespace_add_del (&a); |
| vec_free (ns_id); |
| } |
| |
| static clib_error_t * |
| app_ns_fn (vlib_main_t * vm, unformat_input_t * input, |
| vlib_cli_command_t * cmd) |
| { |
| unformat_input_t _line_input, *line_input = &_line_input; |
| u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0; |
| u32 sw_if_index, fib_id = APP_NAMESPACE_INVALID_INDEX; |
| u64 secret; |
| clib_error_t *error = 0; |
| |
| session_cli_return_if_not_enabled (); |
| |
| if (!unformat_user (input, unformat_line_input, line_input)) |
| return 0; |
| |
| while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) |
| { |
| if (unformat (line_input, "add")) |
| is_add = 1; |
| else if (unformat (line_input, "id %_%v%_", &ns_id)) |
| ; |
| else if (unformat (line_input, "secret %lu", &secret)) |
| secret_set = 1; |
| else if (unformat (line_input, "sw_if_index %u", &sw_if_index)) |
| sw_if_index_set = 1; |
| else if (unformat (line_input, "fib_id", &fib_id)) |
| ; |
| else |
| { |
| error = clib_error_return (0, "unknown input `%U'", |
| format_unformat_error, line_input); |
| unformat_free (line_input); |
| return error; |
| } |
| } |
| unformat_free (line_input); |
| |
| if (!ns_id || !secret_set || !sw_if_index_set) |
| { |
| vlib_cli_output (vm, "namespace-id, secret and sw_if_index must be " |
| "provided"); |
| return 0; |
| } |
| |
| if (is_add) |
| { |
| vnet_app_namespace_add_del_args_t args = { |
| .ns_id = ns_id, |
| .secret = secret, |
| .sw_if_index = sw_if_index, |
| .ip4_fib_id = fib_id, |
| .is_add = 1 |
| }; |
| error = vnet_app_namespace_add_del (&args); |
| } |
| |
| return error; |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (app_ns_command, static) = |
| { |
| .path = "app ns", |
| .short_help = "app ns [add] id <namespace-id> secret <secret> " |
| "sw_if_index <sw_if_index>", |
| .function = app_ns_fn, |
| }; |
| /* *INDENT-ON* */ |
| |
| u8 * |
| format_app_namespace (u8 * s, va_list * args) |
| { |
| app_namespace_t *app_ns = va_arg (*args, app_namespace_t *); |
| s = format (s, "%-20v%-20lu%-20u", app_ns->ns_id, app_ns->ns_secret, |
| app_ns->sw_if_index); |
| return s; |
| } |
| |
| static clib_error_t * |
| show_app_ns_fn (vlib_main_t * vm, unformat_input_t * input, |
| vlib_cli_command_t * cmd) |
| { |
| app_namespace_t *app_ns; |
| session_table_t *st; |
| u8 *ns_id, do_table = 0; |
| |
| session_cli_return_if_not_enabled (); |
| |
| if (unformat_peek_input (input) != UNFORMAT_END_OF_INPUT) |
| { |
| if (unformat (input, "table %_%v%_", &ns_id)) |
| do_table = 1; |
| else |
| { |
| vlib_cli_output (vm, "unknown input [%U]", |
| format_unformat_error, input); |
| return clib_error_return (0, "unknown input `%U'", |
| format_unformat_error, input); |
| } |
| } |
| |
| if (do_table) |
| { |
| app_ns = app_namespace_get_from_id (ns_id); |
| if (!app_ns) |
| { |
| vlib_cli_output (vm, "ns %v not found", ns_id); |
| return 0; |
| } |
| st = session_table_get (app_ns->local_table_index); |
| if (!st) |
| { |
| vlib_cli_output (vm, "table for ns %v could not be found", ns_id); |
| return 0; |
| } |
| session_lookup_show_table_entries (vm, st, 0, 1); |
| vec_free (ns_id); |
| return 0; |
| } |
| |
| vlib_cli_output (vm, "%-20s%-20s%-20s", "Namespace", "Secret", |
| "sw_if_index"); |
| |
| /* *INDENT-OFF* */ |
| pool_foreach (app_ns, app_namespace_pool, ({ |
| vlib_cli_output (vm, "%U", format_app_namespace, app_ns); |
| })); |
| /* *INDENT-ON* */ |
| |
| return 0; |
| } |
| |
| /* *INDENT-OFF* */ |
| VLIB_CLI_COMMAND (show_app_ns_command, static) = |
| { |
| .path = "show app ns", |
| .short_help = "show app ns", |
| .function = show_app_ns_fn, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |