diff options
Diffstat (limited to 'src/vnet/session/application_namespace.c')
| -rw-r--r-- | src/vnet/session/application_namespace.c | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/src/vnet/session/application_namespace.c b/src/vnet/session/application_namespace.c new file mode 100644 index 00000000000..7f90943f9cd --- /dev/null +++ b/src/vnet/session/application_namespace.c @@ -0,0 +1,293 @@ +/* + * 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) +{ + 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 (); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "add")) + is_add = 1; + else if (unformat (input, "id %_%v%_", &ns_id)) + ; + else if (unformat (input, "secret %lu", &secret)) + secret_set = 1; + else if (unformat (input, "sw_if_index %u", &sw_if_index)) + sw_if_index_set = 1; + else if (unformat (input, "fib_id", &fib_id)) + ; + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, 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 (); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table %_%v%_", &ns_id)) + do_table = 1; + else + 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: + */ |