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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-17 ChenYong First version
*/
#ifndef SAL_H__
#define SAL_H__
#include <rtdevice.h>
#ifdef SAL_USING_POSIX
#include <dfs_file.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
typedef uint32_t socklen_t;
#endif
/* sal socket magic word */
#define SAL_SOCKET_MAGIC 0x5A10
/* The maximum number of sockets structure */
#ifndef SAL_SOCKETS_NUM
#define SAL_SOCKETS_NUM DFS_FD_MAX
#endif
/* The maximum number of protocol families */
#ifndef SAL_PROTO_FAMILIES_NUM
#define SAL_PROTO_FAMILIES_NUM 4
#endif
/* sal socket offset */
#ifndef SAL_SOCKET_OFFSET
#define SAL_SOCKET_OFFSET 0
#endif
struct proto_ops
{
int (*socket) (int domain, int type, int protocol);
int (*closesocket)(int s);
int (*bind) (int s, const struct sockaddr *name, socklen_t namelen);
int (*listen) (int s, int backlog);
int (*connect) (int s, const struct sockaddr *name, socklen_t namelen);
int (*accept) (int s, struct sockaddr *addr, socklen_t *addrlen);
int (*sendto) (int s, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen);
int (*recvfrom) (int s, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen);
int (*getsockopt) (int s, int level, int optname, void *optval, socklen_t *optlen);
int (*setsockopt) (int s, int level, int optname, const void *optval, socklen_t optlen);
int (*shutdown) (int s, int how);
int (*getpeername)(int s, struct sockaddr *name, socklen_t *namelen);
int (*getsockname)(int s, struct sockaddr *name, socklen_t *namelen);
int (*ioctlsocket)(int s, long cmd, void *arg);
#ifdef SAL_USING_POSIX
int (*poll) (struct dfs_fd *file, struct rt_pollreq *req);
#endif
};
struct sal_socket
{
uint32_t magic; /* sal socket magic word */
int socket; /* sal socket descriptor */
int domain;
int type;
int protocol;
const struct proto_ops *ops; /* socket options */
void *user_data; /* specific sal socket data */
};
struct proto_family
{
char name[RT_NAME_MAX];
int family; /* primary protocol families type */
int sec_family; /* secondary protocol families type */
int (*create)(struct sal_socket *sal_socket, int type, int protocol); /* register socket options */
struct hostent* (*gethostbyname) (const char *name);
int (*gethostbyname_r)(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop);
void (*freeaddrinfo) (struct addrinfo *ai);
int (*getaddrinfo) (const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res);
};
/* SAL(Socket Abstraction Layer) initialize */
int sal_init(void);
struct sal_socket *sal_get_socket(int sock);
/* protocol family register and unregister operate */
int sal_proto_family_register(const struct proto_family *pf);
int sal_proto_family_unregister(const struct proto_family *pf);
struct proto_family *sal_proto_family_find(const char *name);
#ifdef __cplusplus
}
#endif
#endif /* SAL_H__ */
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