/* *------------------------------------------------------------------ * api_common.h * * Copyright (c) 2009-2015 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. *------------------------------------------------------------------ */ #ifndef included_api_common_h #define included_api_common_h #include #include #include typedef enum { REGISTRATION_TYPE_FREE = 0, REGISTRATION_TYPE_SHMEM, REGISTRATION_TYPE_SOCKET_LISTEN, REGISTRATION_TYPE_SOCKET_SERVER, REGISTRATION_TYPE_SOCKET_CLIENT, } vl_registration_type_t; typedef struct vl_api_registration_ { vl_registration_type_t registration_type; /* Index in VLIB's brain (not shared memory). */ u32 vl_api_registration_pool_index; u8 *name; /* * The following groups of data could be unioned, but my fingers are * going to be sore enough. */ /* shared memory only */ unix_shared_memory_queue_t *vl_input_queue; /* socket server and client */ u32 clib_file_index; i8 *unprocessed_input; u32 unprocessed_msg_length; u8 *output_vector; /* socket client only */ u32 server_handle; u32 server_index; } vl_api_registration_t; /* Trace configuration for a single message */ typedef struct { int size; int trace_enable; int replay_enable; } trace_cfg_t; /* * API recording */ typedef struct { u8 endian; u8 enabled; u8 wrapped; u8 pad; u32 nitems; u32 curindex; u8 **traces; } vl_api_trace_t; typedef enum { VL_API_TRACE_TX, VL_API_TRACE_RX, } vl_api_trace_which_t; #define VL_API_LITTLE_ENDIAN 0x00 #define VL_API_BIG_ENDIAN 0x01 typedef struct { u8 *name; u16 first_msg_id; u16 last_msg_id; } vl_api_msg_range_t; typedef struct { int id; char *name; u32 crc; void *handler; void *cleanup; void *endian; void *print; int size; int traced; int replay; int message_bounce; int is_mp_safe; } vl_msg_api_msg_config_t; typedef struct msgbuf_ { unix_shared_memory_queue_t *q; u32 data_len; u32 gc_mark_timestamp; u8 data[0]; } msgbuf_t; /* api_shared.c prototypes */ void vl_msg_api_handler (void *the_msg); void vl_msg_api_handler_no_free (void *the_msg); void vl_msg_api_handler_no_trace_no_free (void *the_msg); void vl_msg_api_trace_only (void *the_msg); void vl_msg_api_cleanup_handler (void *the_msg); void vl_msg_api_replay_handler (void *the_msg); void vl_msg_api_socket_handler (void *the_msg); void vl_msg_api_set_handlers (int msg_id, char *msg_name, void *handler, void *cleanup, void *endian, void *print, int msg_size, int traced); void vl_msg_api_config (vl_msg_api_msg_config_t *); void vl_msg_api_set_cleanup_handler (int msg_id, void *fp); void vl_msg_api_queue_handler (unix_shared_memory_queue_t * q); void vl_msg_api_barrier_sync (void) __attribute__ ((weak)); void vl_msg_api_barrier_release (void) __attribute__ ((weak)); #ifdef BARRIER_TRACING void vl_msg_api_barrier_trace_context (const char *context) __attribute__ ((weak)); #else #define vl_msg_api_barrier_trace_context(X) #endif void vl_msg_api_free (void *); void vl_noop_handler (void *mp); void vl_msg_api_increment_missing_client_counter (void); void vl_msg_api_post_mortem_dump (void); void vl_msg_api_post_mortem_dump_enable_disable (int enable); void vl_msg_api_register_pd_handler (void *handler, u16 msg_id_host_byte_order); int vl_msg_api_pd_handler (void *mp, int rv); void vl_msg_api_set_first_available_msg_id (u16 first_avail); u16 vl_msg_api_get_msg_ids (const char *name, int n); u32 vl_api_get_msg_index (u8 * name_and_crc); typedef clib_error_t *(vl_msg_api_init_function_t) (u32 client_index); typedef struct _vl_msg_api_init_function_list_elt { struct _vl_msg_api_init_function_list_elt *next_init_function; vl_msg_api_init_function_t *f; } _vl_msg_api_function_list_elt_t; typedef struct { void (**msg_handlers) (void *); int (**pd_msg_handlers) (void *, int); void (**msg_cleanup_handlers) (void *); void (**msg_endian_handlers) (void *); void (**msg_print_handlers) (void *, void *); const char **msg_names; u8 *message_bounce; u8 *is_mp_safe; struct ring_alloc_ *arings; u32 ring_misses; u32 garbage_collects; u32 missing_clients; vl_api_trace_t *rx_trace; vl_api_trace_t *tx_trace; int msg_print_flag; trace_cfg_t *api_trace_cfg; int our_pid; svm_region_t *vlib_rp; svm_region_t **mapped_shmem_regions; struct vl_shmem_hdr_ *shmem_hdr; vl_api_registration_t **vl_clients; u8 *serialized_message_table_in_shmem; /* For plugin msg allocator */ u16 first_available_msg_id; /* message range by name hash */ uword *msg_range_by_name; /* vector of message ranges */ vl_api_msg_range_t *msg_ranges; /* uid for the api shared memory region */ int api_uid; /* gid for the api shared memory region */ int api_gid; /* base virtual address for global VM region */ u64 global_baseva; /* size of the global VM region */ u64 global_size; /* size of the API region */ u64 api_size; /* size of the global VM private mheap */ u64 global_pvt_heap_size; /* size of the api private mheap */ u64 api_pvt_heap_size; /* Client-only data structures */ unix_shared_memory_queue_t *vl_input_queue; /* * All VLIB-side message handlers use my_client_index to identify * the queue / client. This works in sim replay. */ int my_client_index; /* * This is the (shared VM) address of the registration, * don't use it to id the connection since it can't possibly * work in simulator replay. */ vl_api_registration_t *my_registration; i32 vlib_signal; /* vlib input queue length */ u32 vlib_input_queue_length; /* client side message index hash table */ uword *msg_index_by_name_and_crc; const char *region_name; const char *root_path; /* Replay in progress? */ int replay_in_progress; /* Dump (msg-name, crc) snapshot here at startup */ u8 *save_msg_table_filename; /* List of API client reaper functions */ _vl_msg_api_function_list_elt_t *reaper_function_registrations; } api_main_t; extern api_main_t api_main; #endif /* included_api_common_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */