1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 *    conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 *    of conditions and the following disclaimer in the documentation and/or other materials
13 *    provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 *    to endorse or promote products derived from this software without specific prior written
17 *    permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LWIP_PORTING_SOCKETS_H_
33#define _LWIP_PORTING_SOCKETS_H_
34
35#include <sys/socket.h>
36#include <poll.h> // For poll_table
37#include <netinet/tcp.h> // For TCP_NODELAY etc.
38#include <netinet/in.h>
39#include <sys/ioctl.h> // For FIONREAD etc.
40#include <sys/select.h> // For FD_SET
41#include <limits.h> // For IOV_MAX
42#include_next <lwip/sockets.h>
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48#ifdef __LWIP__
49
50#if FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN)
51#error "external FD_SETSIZE too small for number of sockets"
52#else
53#define LWIP_SELECT_MAXNFDS FD_SETSIZE
54#endif
55
56#if IOV_MAX > 0xFFFF
57#error "IOV_MAX larger than supported by LwIP"
58#endif
59
60#if LWIP_UDP && LWIP_UDPLITE
61#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */
62#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */
63#endif
64
65// For BSD 4.4 socket sa_len compatibility
66#define DF_NADDR(addr) ip_addr_t naddr = addr
67#define SA_LEN(addr, _)  (IP_IS_V4_VAL(addr) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))
68#define sa_len sa_data[0] * 0 + SA_LEN(naddr, _)
69#define sin_len sin_zero[0]
70#define sin6_len sin6_addr.s6_addr[0]
71
72// for sockets.c, TCP_KEEPALIVE is not supported currently
73#define TCP_KEEPALIVE   0xFF
74#define SIN_ZERO_LEN    8
75
76#else
77int closesocket(int sockfd);
78#endif /* __LWIP__ */
79
80int socks_poll(int sockfd, poll_table *wait);
81int socks_ioctl(int sockfd, long cmd, void *argp);
82int socks_close(int sockfd);
83void socks_refer(int sockfd);
84
85#ifdef __cplusplus
86}
87#endif
88
89#endif /* _LWIP_PORTING_SOCKETS_H_ */
90