/* * Copyright (c) 2017-2020 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_vppcom_h #define included_vppcom_h #include <netdb.h> #include <errno.h> #include <sys/fcntl.h> #include <sys/poll.h> #include <sys/epoll.h> /* *INDENT-OFF* */ #ifdef __cplusplus extern "C" { #endif /* *INDENT-ON* */ /* * VPPCOM Public API Definitions, Enums, and Data Structures */ #define INVALID_SESSION_ID ((u32)~0) #define VPPCOM_CONF_DEFAULT "/etc/vpp/vcl.conf" #define VPPCOM_ENV_CONF "VCL_CONFIG" #define VPPCOM_ENV_DEBUG "VCL_DEBUG" #define VPPCOM_ENV_API_PREFIX "VCL_API_PREFIX" #define VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "VCL_APP_PROXY_TRANSPORT_TCP" #define VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "VCL_APP_PROXY_TRANSPORT_UDP" #define VPPCOM_ENV_APP_NAMESPACE_ID "VCL_APP_NAMESPACE_ID" #define VPPCOM_ENV_APP_NAMESPACE_SECRET "VCL_APP_NAMESPACE_SECRET" #define VPPCOM_ENV_APP_SCOPE_LOCAL "VCL_APP_SCOPE_LOCAL" #define VPPCOM_ENV_APP_SCOPE_GLOBAL "VCL_APP_SCOPE_GLOBAL" #define VPPCOM_ENV_VPP_API_SOCKET "VCL_VPP_API_SOCKET" typedef enum { VPPCOM_PROTO_TCP = 0, VPPCOM_PROTO_UDP, VPPCOM_PROTO_NONE, VPPCOM_PROTO_TLS, VPPCOM_PROTO_QUIC, } vppcom_proto_t; typedef enum { VPPCOM_IS_IP6 = 0, VPPCOM_IS_IP4, } vppcom_is_ip4_t; typedef struct vppcom_endpt_t_ { uint8_t is_cut_thru; uint8_t is_ip4; uint8_t *ip; uint16_t port; uint64_t parent_handle; } vppcom_endpt_t; typedef uint32_t vcl_session_handle_t; typedef enum { VPPCOM_OK = 0, VPPCOM_EAGAIN = -EAGAIN, VPPCOM_EWOULDBLOCK = -EWOULDBLOCK, VPPCOM_EINPROGRESS = -EINPROGRESS, VPPCOM_EFAULT = -EFAULT, VPPCOM_ENOMEM = -ENOMEM, VPPCOM_EINVAL = -EINVAL, VPPCOM_EBADFD = -EBADFD, VPPCOM_EAFNOSUPPORT = -EAFNOSUPPORT, VPPCOM_ECONNABORTED = -ECONNABORTED, VPPCOM_ECONNRESET = -ECONNRESET, VPPCOM_ENOTCONN = -ENOTCONN, VPPCOM_ECONNREFUSED = -ECONNREFUSED, VPPCOM_ETIMEDOUT = -ETIMEDOUT, VPPCOM_EEXIST = -EEXIST } vppcom_error_t; typedef enum { VPPCOM_ATTR_GET_NREAD, VPPCOM_ATTR_GET_NWRITE, VPPCOM_ATTR_GET_FLAGS, VPPCOM_ATTR_SET_FLAGS, VPPCOM_ATTR_GET_LCL_ADDR, VPPCOM_ATTR_SET_LCL_ADDR, VPPCOM_ATTR_GET_PEER_ADDR, VPPCOM_ATTR_GET_LIBC_EPFD, VPPCOM_ATTR_SET_LIBC_EPFD, VPPCOM_ATTR_GET_PROTOCOL, VPPCOM_ATTR_GET_LISTEN, VPPCOM_ATTR_GET_ERROR, VPPCOM_ATTR_GET_TX_FIFO_LEN, VPPCOM_ATTR_SET_TX_FIFO_LEN, VPPCOM_ATTR_GET_RX_FIFO_LEN, VPPCOM_ATTR_SET_RX_FIFO_LEN, VPPCOM_ATTR_GET_REUSEADDR, VPPCOM_ATTR_SET_REUSEADDR, VPPCOM_ATTR_GET_REUSEPORT, VPPCOM_ATTR_SET_REUSEPORT, VPPCOM_ATTR_GET_BROADCAST, VPPCOM_ATTR_SET_BROADCAST, VPPCOM_ATTR_GET_V6ONLY, VPPCOM_ATTR_SET_V6ONLY, VPPCOM_ATTR_GET_KEEPALIVE, VPPCOM_ATTR_SET_KEEPALIVE, VPPCOM_ATTR_GET_TCP_NODELAY, VPPCOM_ATTR_SET_TCP_NODELAY, VPPCOM_ATTR_GET_TCP_KEEPIDLE, VPPCOM_ATTR_SET_TCP_KEEPIDLE, VPPCOM_ATTR_GET_TCP_KEEPINTVL, VPPCOM_ATTR_SET_TCP_KEEPINTVL, VPPCOM_ATTR_GET_TCP_USER_MSS, VPPCOM_ATTR_SET_TCP_USER_MSS, VPPCOM_ATTR_SET_SHUT, VPPCOM_ATTR_GET_SHUT, VPPCOM_ATTR_SET_CONNECTED, } vppcom_attr_op_t; typedef struct _vcl_poll { uint32_t fds_ndx; vcl_session_handle_t sh; short events; short revents; } vcl_poll_t; typedef struct vppcom_data_segment_ { unsigned char *data; uint32_t len; } vppcom_data_segment_t; typedef vppcom_data_segment_t vppcom_data_segments_t[2]; typedef unsigned long vcl_si_set; /* * VPPCOM Public API Functions */ extern int vppcom_app_create (const char *app_name); extern void vppcom_app_destroy (void); extern int vppcom_session_create (uint8_t proto, uint8_t is_nonblocking); extern int vppcom_session_close (uint32_t session_handle); extern int vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep); extern int vppcom_session_listen (uint32_t session_handle, uint32_t q_len); extern int vppcom_session_accept (uint32_t session_handle, vppcom_endpt_t * client_ep, uint32_t flags); extern int vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep); extern int vppcom_session_stream_connect (uint32_t session_handle, uint32_t parent_session_handle); extern int vppcom_session_read (uint32_t session_handle, void *buf, size_t n); extern int vppcom_session_write (uint32_t session_handle, void *buf, size_t n); extern int vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n); extern int vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map, vcl_si_set * except_map, double wait_for_time); extern int vppcom_epoll_create (void); extern int vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, struct epoll_event *event); extern int vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events, int maxevents, double wait_for_time); extern int vppcom_session_attr (uint32_t session_handle, uint32_t op, void *buffer, uint32_t * buflen); extern int vppcom_session_recvfrom (uint32_t session_handle, void *buffer, uint32_t buflen, int flags, vppcom_endpt_t * ep); extern int vppcom_session_sendto (uint32_t session_handle, void *buffer, uint32_t buflen, int flags, vppcom_endpt_t * ep); extern int vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time); extern int vppcom_mq_epoll_fd (void); extern int vppcom_session_index (vcl_session_handle_t session_handle); extern int vppcom_session_worker (vcl_session_handle_t session_handle); extern int vppcom_session_read_segments (uint32_t session_handle, vppcom_data_segment_t * ds, uint32_t n_segments, uint32_t max_bytes); extern void vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes); extern int vppcom_session_tls_add_cert (uint32_t session_handle, char *cert, uint32_t cert_len); extern int vppcom_session_tls_add_key (uint32_t session_handle, char *key, uint32_t key_len); extern int vppcom_unformat_proto (uint8_t * proto, char *proto_str); extern int vppcom_session_is_connectable_listener (uint32_t session_handle); extern int vppcom_session_listener (uint32_t session_handle); extern int vppcom_session_n_accepted (uint32_t session_handle); extern const char *vppcom_proto_str (vppcom_proto_t proto); extern const char *vppcom_retval_str (int retval); /** * Request from application to register a new worker * * Expectation is that applications will make use of this after a new pthread * is spawned. */ extern int vppcom_worker_register (void); /** * Unregister current worker */ extern void vppcom_worker_unregister (void); /** * Retrieve current worker index */ extern int vppcom_worker_index (void); /** * Set current worker index */ extern void vppcom_worker_index_set (int); /** * Returns the current worker's message queues epoll fd * * This only works if vcl is configured to do eventfd based message queue * notifications. */ extern int vppcom_worker_mqs_epfd (void); /* *INDENT-OFF* */ #ifdef __cplusplus } #endif /* *INDENT-ON* */ #endif /* included_vppcom_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */