/* * Copyright (c) 2017-2019 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 <vppinfra/socket.h> #include <vnet/vnet.h> #include <vnet/session/session_table.h> #ifndef SRC_VNET_SESSION_APPLICATION_NAMESPACE_H_ #define SRC_VNET_SESSION_APPLICATION_NAMESPACE_H_ typedef struct _app_namespace { /** * Local sw_if_index that supports transport connections for this namespace */ u32 sw_if_index; /** * Network namespace (e.g., fib_index associated to the sw_if_index) * wherein connections are to be established. Since v4 and v6 fibs are * separate, we actually need to keep pointers to both. */ u32 ip4_fib_index; u32 ip6_fib_index; /** * Local session table associated to ns */ u32 local_table_index; /** * Secret apps need to provide to authorize attachment to the namespace */ u64 ns_secret; /** * Application namespace id */ u8 *ns_id; /** * Linux netns if one was provided */ u8 *netns; /** * Name of socket applications can use to attach to session layer */ u8 *sock_name; /** * Pool of active application sockets */ clib_socket_t *app_sockets; } app_namespace_t; typedef struct _vnet_app_namespace_add_del_args { u8 *ns_id; u8 *netns; u8 *sock_name; u64 secret; u32 sw_if_index; u32 ip4_fib_id; u32 ip6_fib_id; u8 is_add; } vnet_app_namespace_add_del_args_t; #define APP_NAMESPACE_INVALID_INDEX ((u32)~0) app_namespace_t *app_namespace_alloc (const u8 *ns_id); app_namespace_t *app_namespace_get (u32 index); app_namespace_t *app_namespace_get_from_id (const u8 *ns_id); u32 app_namespace_index (app_namespace_t * app_ns); const u8 *app_namespace_id (app_namespace_t * app_ns); const u8 *app_namespace_id_from_index (u32 index); u32 app_namespace_index_from_id (const u8 *ns_id); void app_namespaces_init (void); int vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a); u32 app_namespace_get_fib_index (app_namespace_t * app_ns, u8 fib_proto); session_table_t *app_namespace_get_local_table (app_namespace_t * app_ns); always_inline app_namespace_t * app_namespace_get_default (void) { return app_namespace_get (0); } typedef struct app_ns_api_handle_ { union { struct { /** app_ns index for files and app_index for sockets */ u32 l_index; /** socket index for files and clib file index for sockets */ u32 u_index; }; u64 as_u64; }; #define aah_app_ns_index l_index #define aah_app_wrk_index l_index #define aah_sock_index u_index #define aah_file_index u_index } __attribute__ ((aligned (sizeof (u64)))) app_ns_api_handle_t; STATIC_ASSERT (sizeof (app_ns_api_handle_t) == sizeof (u64), "not u64"); static inline clib_socket_t * appns_sapi_alloc_socket (app_namespace_t * app_ns) { clib_socket_t *cs; pool_get_zero (app_ns->app_sockets, cs); return cs; } static inline clib_socket_t * appns_sapi_get_socket (app_namespace_t * app_ns, u32 sock_index) { if (pool_is_free_index (app_ns->app_sockets, sock_index)) return 0; return pool_elt_at_index (app_ns->app_sockets, sock_index); } static inline void appns_sapi_free_socket (app_namespace_t * app_ns, clib_socket_t * cs) { pool_put (app_ns->app_sockets, cs); } static inline u32 appns_sapi_socket_index (app_namespace_t * app_ns, clib_socket_t * cs) { return (cs - app_ns->app_sockets); } static inline u32 appns_sapi_socket_handle (app_namespace_t * app_ns, clib_socket_t * cs) { return app_namespace_index (app_ns) << 16 | (cs - app_ns->app_sockets); } static inline u32 appns_sapi_handle_sock_index (u32 sapi_sock_handle) { return sapi_sock_handle & 0xffff; } int appns_sapi_add_ns_socket (app_namespace_t * app_ns); void appns_sapi_del_ns_socket (app_namespace_t *app_ns); u8 appns_sapi_enabled (void); int appns_sapi_enable_disable (int is_enable); #endif /* SRC_VNET_SESSION_APPLICATION_NAMESPACE_H_ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */