-#define app_interface_check_thread_and_barrier(_fn, _arg) \
- if (PREDICT_FALSE (!vlib_thread_is_main_w_barrier ())) \
- { \
- vlib_rpc_call_main_thread (_fn, (u8 *) _arg, sizeof(*_arg)); \
- return 0; \
- }
-
-u8
-session_endpoint_in_ns (session_endpoint_t * sep)
-{
- u8 is_lep = session_endpoint_is_local (sep);
- if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
- && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
- {
- clib_warning ("sw_if_index %u not configured with ip %U",
- sep->sw_if_index, format_ip46_address, &sep->ip,
- sep->is_ip4);
- return 0;
- }
- return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
-}
-
-int
-api_parse_session_handle (u64 handle, u32 * session_index, u32 * thread_index)
-{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
- session_t *pool;
-
- *thread_index = handle & 0xFFFFFFFF;
- *session_index = handle >> 32;
-
- if (*thread_index >= vec_len (smm->wrk))
- return VNET_API_ERROR_INVALID_VALUE;
-
- pool = smm->wrk[*thread_index].sessions;
-
- if (pool_is_free_index (pool, *session_index))
- return VNET_API_ERROR_INVALID_VALUE_2;
-
- return 0;
-}
-
-static void
-session_endpoint_update_for_app (session_endpoint_cfg_t * sep,
- application_t * app, u8 is_connect)
-{
- app_namespace_t *app_ns;
- u32 ns_index, fib_index;
-
- ns_index = app->ns_index;
-
- /* App is a transport proto, so fetch the calling app's ns */
- if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
- {
- app_worker_t *owner_wrk;
- application_t *owner_app;
-
- owner_wrk = app_worker_get (sep->app_wrk_index);
- owner_app = application_get (owner_wrk->app_index);
- ns_index = owner_app->ns_index;
- }
- app_ns = app_namespace_get (ns_index);
- if (!app_ns)
- return;
-
- /* Ask transport and network to bind to/connect using local interface
- * that "supports" app's namespace. This will fix our local connection
- * endpoint.
- */
-
- /* If in default namespace and user requested a fib index use it */
- if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
- fib_index = sep->fib_index;
- else
- fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
- sep->peer.fib_index = fib_index;
- sep->fib_index = fib_index;
-
- if (!is_connect)
- {
- sep->sw_if_index = app_ns->sw_if_index;
- }
- else
- {
- if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
- && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
- && sep->peer.sw_if_index != app_ns->sw_if_index)
- clib_warning ("Local sw_if_index different from app ns sw_if_index");
-
- sep->peer.sw_if_index = app_ns->sw_if_index;
- }
-}
-
-static inline int
-vnet_listen_inline (vnet_listen_args_t * a)
-{
- app_listener_t *app_listener;
- app_worker_t *app_wrk;
- application_t *app;
- int rv;
-
- app = application_get_if_valid (a->app_index);
- if (!app)
- return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
-
- app_wrk = application_get_worker (app, a->wrk_map_index);
- if (!app_wrk)
- return VNET_API_ERROR_INVALID_VALUE;
-
- a->sep_ext.app_wrk_index = app_wrk->wrk_index;
-
- session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
- if (!session_endpoint_in_ns (&a->sep))
- return VNET_API_ERROR_INVALID_VALUE_2;
-
- /*
- * Check if we already have an app listener
- */
- app_listener = app_listener_lookup (app, &a->sep_ext);
- if (app_listener)
- {
- if (app_listener->app_index != app->app_index)
- return VNET_API_ERROR_ADDRESS_IN_USE;
- if (app_worker_start_listen (app_wrk, app_listener))
- return -1;
- a->handle = app_listener_handle (app_listener);
- return 0;
- }
-
- /*
- * Create new app listener
- */
- if ((rv = app_listener_alloc_and_init (app, &a->sep_ext, &app_listener)))
- return rv;
-
- if ((rv = app_worker_start_listen (app_wrk, app_listener)))
- {
- app_listener_cleanup (app_listener);
- return rv;
- }
-
- a->handle = app_listener_handle (app_listener);
- return 0;
-}
-
-static inline int
-vnet_unlisten_inline (vnet_unbind_args_t * a)
-{
- app_worker_t *app_wrk;
- app_listener_t *al;
- application_t *app;
-
- if (!(app = application_get_if_valid (a->app_index)))
- return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
-
- al = app_listener_get_w_handle (a->handle);
- if (al->app_index != app->app_index)
- {
- clib_warning ("app doesn't own handle %llu!", a->handle);
- return -1;
- }
-
- app_wrk = application_get_worker (app, a->wrk_map_index);
- if (!app_wrk)
- {
- clib_warning ("no app %u worker %u", app->app_index, a->wrk_map_index);
- return -1;
- }
-
- return app_worker_stop_listen (app_wrk, al);
-}
-
-static int
-application_connect (vnet_connect_args_t * a)
-{
- app_worker_t *server_wrk, *client_wrk;
- application_t *client;
- local_session_t *ll;
- app_listener_t *al;
- u32 table_index;
- session_t *ls;
- u8 fib_proto;
- u64 lh;
-
- if (session_endpoint_is_zero (&a->sep))
- return VNET_API_ERROR_INVALID_VALUE;
-
- client = application_get (a->app_index);
- session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
- client_wrk = application_get_worker (client, a->wrk_map_index);
-
- /*
- * First check the local scope for locally attached destinations.
- * If we have local scope, we pass *all* connects through it since we may
- * have special policy rules even for non-local destinations, think proxy.
- */
- if (application_has_local_scope (client))
- {
- table_index = application_local_session_table (client);
- lh = session_lookup_local_endpoint (table_index, &a->sep);
- if (lh == SESSION_DROP_HANDLE)
- return VNET_API_ERROR_APP_CONNECT_FILTERED;
-
- if (lh == SESSION_INVALID_HANDLE)
- goto global_scope;
-
- ll = application_get_local_listener_w_handle (lh);
- al = app_listener_get_w_session ((session_t *) ll);
-
- /*
- * Break loop if rule in local table points to connecting app. This
- * can happen if client is a generic proxy. Route connect through
- * global table instead.
- */
- if (al->app_index == a->app_index)
- goto global_scope;
-
- server_wrk = app_listener_select_worker (al);
- return app_worker_local_session_connect (client_wrk, server_wrk, ll,
- a->api_context);
- }
-
- /*
- * If nothing found, check the global scope for locally attached
- * destinations. Make sure first that we're allowed to.
- */
-
-global_scope:
- if (session_endpoint_is_local (&a->sep))
- return VNET_API_ERROR_SESSION_CONNECT;
-
- if (!application_has_global_scope (client))
- return VNET_API_ERROR_APP_CONNECT_SCOPE;
-
- fib_proto = session_endpoint_fib_proto (&a->sep);
- table_index = application_session_table (client, fib_proto);
- ls = session_lookup_listener (table_index, &a->sep);
- if (ls)
- {
- al = app_listener_get_w_session (ls);
- server_wrk = app_listener_select_worker (al);
- ll = (local_session_t *) ls;
- return app_worker_local_session_connect (client_wrk, server_wrk, ll,
- a->api_context);
- }
-
- /*
- * Not connecting to a local server, propagate to transport
- */
- if (app_worker_connect_session (client_wrk, &a->sep, a->api_context))
- return VNET_API_ERROR_SESSION_CONNECT;
- return 0;
-}
-