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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* 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 __NSOCKET_DMM_API_H__
#define __NSOCKET_DMM_API_H__
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/epoll.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "nstack_rd_data.h"
/*
*Standard api interface definition.
*these interface is provided by Protocol stack to nStack
*/
typedef struct __nstack_socket_ops
{
#undef NSTACK_MK_DECL
#define NSTACK_MK_DECL(ret, fn, args) ret (*pf##fn) args
#include "declare_syscalls.h"
} nstack_socket_ops;
typedef enum
{
STACK_FD_INVALID_CHECK, /*check wether fd is created by this stack */
STACK_FD_FUNCALL_CHECK, /*check this stack support default call */
} nstack_fd_check;
typedef enum
{
nstack_ep_triggle_add,
nstack_ep_triggle_mod,
nstack_ep_triggle_del
} nstack_ep_triggle_ops_t;
/*
*Interactive interface for Protocol stack and nStack defined here
*these interface is provided by Protocol stack to nStack
*/
typedef struct __nstack_extern_ops
{
int (*module_init) (void); /*stack module init */
int (*module_init_child) (void); /*stack module init for child process */
int (*fork_init_child) (pid_t p, pid_t c); /*after fork, stack child process init again if needed. */
void (*fork_parent_fd) (int s, pid_t p); /*after fork, stack parent process proc again if needed. */
void (*fork_child_fd) (int s, pid_t p, pid_t c); /*after fork, child record pid for recycle if needed. */
void (*fork_free_fd) (int s, pid_t p, pid_t c); /*for SOCK_CLOEXEC when fork if needed. */
unsigned int (*ep_ctl) (int epFD, int proFD, int ctl_ops, struct epoll_event * event, void *pdata); /*when fd add to epoll fd, triggle stack to proc if need */
unsigned int (*ep_getevt) (int epFD, int profd, unsigned int events); /*check whether some events exist really */
int (*ep_prewait_proc) (int epfd);
int (*stack_fd_check) (int s, int flag); /*check whether fd belong to stack, if belong, return 1, else return 0 */
int (*stack_alloc_fd) (); /*alloc a fd id for epoll */
int (*peak) (int s); /*used for stack-x , isource maybe no need */
} nstack_extern_ops;
/*
*The event notify interface provided to the protocol stack by nStack
*these interface is provided by nStack to Protocol stack
*/
typedef struct __nstack_event_cb
{
void *handle; /*current so file handler */
int type; /*nstack is assigned to the protocol stack and needs to be passed to nstack when the event is reported */
int (*event_cb) (void *pdata, int events);
} nstack_event_cb;
typedef struct __nstack_proc_cb
{
nstack_socket_ops socket_ops; /*posix socket api */
nstack_extern_ops extern_ops; /*other proc callback */
} nstack_proc_cb;
typedef int (*nstack_stack_register_fn) (nstack_proc_cb * proc_fun,
nstack_event_cb * event_ops);
#endif
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