117 lines
3.7 KiB
C
117 lines
3.7 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-05-17 ChenYong First version
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* 2022-05-15 Meco Man rename sal.h as sal_low_lvl.h to avoid conflicts
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* with Microsoft Visual Studio header file
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*/
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#ifndef SAL_LOW_LEVEL_H__
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#define SAL_LOW_LEVEL_H__
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#include <rtdevice.h>
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#ifdef SAL_USING_POSIX
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#include <dfs_file.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
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typedef uint32_t socklen_t;
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#endif
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/* SAL socket magic word */
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#define SAL_SOCKET_MAGIC 0x5A10
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/* The maximum number of sockets structure */
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#ifndef SAL_SOCKETS_NUM
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#define SAL_SOCKETS_NUM DFS_FD_MAX
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#endif
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/* The maximum number of protocol families */
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#ifndef SAL_PROTO_FAMILIES_NUM
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#define SAL_PROTO_FAMILIES_NUM 4
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#endif
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/* SAL socket offset */
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#ifndef SAL_SOCKET_OFFSET
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#define SAL_SOCKET_OFFSET 0
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#endif
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struct sal_socket
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{
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uint32_t magic; /* SAL socket magic word */
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int socket; /* SAL socket descriptor */
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int domain;
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int type;
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int protocol;
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struct netdev *netdev; /* SAL network interface device */
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void *user_data; /* user-specific data */
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#ifdef SAL_USING_TLS
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void *user_data_tls; /* user-specific TLS data */
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#endif
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};
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/* network interface socket opreations */
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struct sal_socket_ops
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{
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int (*socket) (int domain, int type, int protocol);
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int (*closesocket)(int s);
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int (*bind) (int s, const struct sockaddr *name, socklen_t namelen);
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int (*listen) (int s, int backlog);
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int (*connect) (int s, const struct sockaddr *name, socklen_t namelen);
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int (*accept) (int s, struct sockaddr *addr, socklen_t *addrlen);
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int (*sendto) (int s, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen);
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int (*recvfrom) (int s, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen);
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int (*getsockopt) (int s, int level, int optname, void *optval, socklen_t *optlen);
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int (*setsockopt) (int s, int level, int optname, const void *optval, socklen_t optlen);
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int (*shutdown) (int s, int how);
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int (*getpeername)(int s, struct sockaddr *name, socklen_t *namelen);
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int (*getsockname)(int s, struct sockaddr *name, socklen_t *namelen);
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int (*ioctlsocket)(int s, long cmd, void *arg);
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#ifdef SAL_USING_POSIX
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int (*poll) (struct dfs_fd *file, struct rt_pollreq *req);
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#endif
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};
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/* sal network database name resolving */
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struct sal_netdb_ops
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{
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struct hostent* (*gethostbyname) (const char *name);
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int (*gethostbyname_r)(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop);
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int (*getaddrinfo) (const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res);
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void (*freeaddrinfo) (struct addrinfo *ai);
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};
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struct sal_proto_family
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{
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int family; /* primary protocol families type */
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int sec_family; /* secondary protocol families type */
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const struct sal_socket_ops *skt_ops; /* socket opreations */
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const struct sal_netdb_ops *netdb_ops; /* network database opreations */
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};
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/* SAL(Socket Abstraction Layer) initialize */
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int sal_init(void);
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/* Get SAL socket object by socket descriptor */
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struct sal_socket *sal_get_socket(int sock);
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/* check SAL socket netweork interface device internet status */
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int sal_check_netdev_internet_up(struct netdev *netdev);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SAL_H__ */
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