1 | /**
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2 | * @file
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3 | * Socket API (to be used from non-TCPIP threads)
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4 | */
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5 |
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6 | /*
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7 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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8 | * All rights reserved.
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9 | *
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10 | * Redistribution and use in source and binary forms, with or without modification,
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11 | * are permitted provided that the following conditions are met:
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12 | *
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13 | * 1. Redistributions of source code must retain the above copyright notice,
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14 | * this list of conditions and the following disclaimer.
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15 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 | * this list of conditions and the following disclaimer in the documentation
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17 | * and/or other materials provided with the distribution.
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18 | * 3. The name of the author may not be used to endorse or promote products
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19 | * derived from this software without specific prior written permission.
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20 | *
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21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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30 | * OF SUCH DAMAGE.
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31 | *
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32 | * This file is part of the lwIP TCP/IP stack.
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33 | *
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34 | * Author: Adam Dunkels <adam@sics.se>
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35 | *
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36 | */
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37 |
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38 |
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39 | #ifndef LWIP_HDR_SOCKETS_H
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40 | #define LWIP_HDR_SOCKETS_H
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41 |
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42 | #include "lwip/opt.h"
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43 |
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44 | #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
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45 |
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46 | #include "lwip/ip_addr.h"
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47 | #include "lwip/netif.h"
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48 | #include "lwip/err.h"
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49 | #include "lwip/inet.h"
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50 | #include "lwip/errno.h"
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51 |
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52 | #include <string.h>
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53 |
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54 | #ifdef __cplusplus
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55 | extern "C" {
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56 | #endif
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57 |
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58 | /* If your port already typedef's sa_family_t, define SA_FAMILY_T_DEFINED
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59 | to prevent this code from redefining it. */
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60 | #if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED)
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61 | typedef u8_t sa_family_t;
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62 | #endif
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63 | /* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED
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64 | to prevent this code from redefining it. */
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65 | #if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED)
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66 | typedef u16_t in_port_t;
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67 | #endif
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68 |
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69 | #if LWIP_IPV4
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70 | /* members are in network byte order */
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71 | struct sockaddr_in {
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72 | u8_t sin_len;
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73 | sa_family_t sin_family;
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74 | in_port_t sin_port;
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75 | struct in_addr sin_addr;
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76 | #define SIN_ZERO_LEN 8
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77 | char sin_zero[SIN_ZERO_LEN];
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78 | };
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79 | #endif /* LWIP_IPV4 */
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80 |
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81 | #if LWIP_IPV6
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82 | struct sockaddr_in6 {
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83 | u8_t sin6_len; /* length of this structure */
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84 | sa_family_t sin6_family; /* AF_INET6 */
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85 | in_port_t sin6_port; /* Transport layer port # */
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86 | u32_t sin6_flowinfo; /* IPv6 flow information */
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87 | struct in6_addr sin6_addr; /* IPv6 address */
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88 | u32_t sin6_scope_id; /* Set of interfaces for scope */
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89 | };
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90 | #endif /* LWIP_IPV6 */
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91 |
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92 | struct sockaddr {
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93 | u8_t sa_len;
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94 | sa_family_t sa_family;
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95 | char sa_data[14];
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96 | };
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97 |
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98 | struct sockaddr_storage {
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99 | u8_t s2_len;
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100 | sa_family_t ss_family;
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101 | char s2_data1[2];
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102 | u32_t s2_data2[3];
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103 | #if LWIP_IPV6
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104 | u32_t s2_data3[3];
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105 | #endif /* LWIP_IPV6 */
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106 | };
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107 |
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108 | /* If your port already typedef's socklen_t, define SOCKLEN_T_DEFINED
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109 | to prevent this code from redefining it. */
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110 | #if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
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111 | typedef u32_t socklen_t;
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112 | #endif
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113 |
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114 | #if !defined IOV_MAX
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115 | #define IOV_MAX 0xFFFF
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116 | #elif IOV_MAX > 0xFFFF
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117 | #error "IOV_MAX larger than supported by LwIP"
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118 | #endif /* IOV_MAX */
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119 |
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120 | #if !defined(iovec)
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121 | struct iovec {
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122 | void *iov_base;
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123 | size_t iov_len;
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124 | };
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125 | #endif
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126 |
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127 | struct msghdr {
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128 | void *msg_name;
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129 | socklen_t msg_namelen;
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130 | struct iovec *msg_iov;
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131 | int msg_iovlen;
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132 | void *msg_control;
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133 | socklen_t msg_controllen;
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134 | int msg_flags;
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135 | };
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136 |
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137 | /* struct msghdr->msg_flags bit field values */
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138 | #define MSG_TRUNC 0x04
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139 | #define MSG_CTRUNC 0x08
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140 |
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141 | /* RFC 3542, Section 20: Ancillary Data */
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142 | struct cmsghdr {
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143 | socklen_t cmsg_len; /* number of bytes, including header */
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144 | int cmsg_level; /* originating protocol */
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145 | int cmsg_type; /* protocol-specific type */
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146 | };
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147 | /* Data section follows header and possible padding, typically referred to as
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148 | unsigned char cmsg_data[]; */
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149 |
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150 | /* cmsg header/data alignment. NOTE: we align to native word size (double word
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151 | size on 16-bit arch) so structures are not placed at an unaligned address.
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152 | 16-bit arch needs double word to ensure 32-bit alignment because socklen_t
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153 | could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment
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154 | will need to increase long long */
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155 | #define ALIGN_H(size) (((size) + sizeof(long) - 1U) & ~(sizeof(long)-1U))
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156 | #define ALIGN_D(size) ALIGN_H(size)
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157 |
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158 | #define CMSG_FIRSTHDR(mhdr) \
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159 | ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
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160 | (struct cmsghdr *)(mhdr)->msg_control : \
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161 | (struct cmsghdr *)NULL)
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162 |
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163 | #define CMSG_NXTHDR(mhdr, cmsg) \
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164 | (((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \
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165 | (((u8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) \
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166 | + ALIGN_D(sizeof(struct cmsghdr)) > \
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167 | (u8_t *)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \
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168 | (struct cmsghdr *)NULL : \
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169 | (struct cmsghdr *)((void*)((u8_t *)(cmsg) + \
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170 | ALIGN_H((cmsg)->cmsg_len)))))
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171 |
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172 | #define CMSG_DATA(cmsg) ((void*)((u8_t *)(cmsg) + \
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173 | ALIGN_D(sizeof(struct cmsghdr))))
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174 |
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175 | #define CMSG_SPACE(length) (ALIGN_D(sizeof(struct cmsghdr)) + \
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176 | ALIGN_H(length))
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177 |
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178 | #define CMSG_LEN(length) (ALIGN_D(sizeof(struct cmsghdr)) + \
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179 | length)
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180 |
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181 | /* Set socket options argument */
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182 | #define IFNAMSIZ NETIF_NAMESIZE
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183 | struct ifreq {
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184 | char ifr_name[IFNAMSIZ]; /* Interface name */
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185 | };
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186 |
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187 | /* Socket protocol types (TCP/UDP/RAW) */
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188 | #define SOCK_STREAM 1
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189 | #define SOCK_DGRAM 2
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190 | #define SOCK_RAW 3
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191 |
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192 | /*
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193 | * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c)
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194 | */
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195 | #define SO_REUSEADDR 0x0004 /* Allow local address reuse */
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196 | #define SO_KEEPALIVE 0x0008 /* keep connections alive */
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197 | #define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
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198 |
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199 |
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200 | /*
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201 | * Additional options, not kept in so_options.
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202 | */
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203 | #define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */
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204 | #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
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205 | #define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */
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206 | #define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
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207 | #define SO_LINGER 0x0080 /* linger on close if data present */
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208 | #define SO_DONTLINGER ((int)(~SO_LINGER))
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209 | #define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */
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210 | #define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */
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211 | #define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */
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212 | #define SO_RCVBUF 0x1002 /* receive buffer size */
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213 | #define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */
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214 | #define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */
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215 | #define SO_SNDTIMEO 0x1005 /* send timeout */
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216 | #define SO_RCVTIMEO 0x1006 /* receive timeout */
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217 | #define SO_ERROR 0x1007 /* get error status and clear */
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218 | #define SO_TYPE 0x1008 /* get socket type */
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219 | #define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */
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220 | #define SO_NO_CHECK 0x100a /* don't create UDP checksum */
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221 | #define SO_BINDTODEVICE 0x100b /* bind to device */
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222 |
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223 | /*
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224 | * Structure used for manipulating linger option.
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225 | */
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226 | struct linger {
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227 | int l_onoff; /* option on/off */
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228 | int l_linger; /* linger time in seconds */
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229 | };
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230 |
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231 | /*
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232 | * Level number for (get/set)sockopt() to apply to socket itself.
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233 | */
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234 | #define SOL_SOCKET 0xfff /* options for socket level */
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235 |
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236 |
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237 | #define AF_UNSPEC 0
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238 | #define AF_INET 2
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239 | #if LWIP_IPV6
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240 | #define AF_INET6 10
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241 | #else /* LWIP_IPV6 */
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242 | #define AF_INET6 AF_UNSPEC
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243 | #endif /* LWIP_IPV6 */
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244 | #define PF_INET AF_INET
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245 | #define PF_INET6 AF_INET6
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246 | #define PF_UNSPEC AF_UNSPEC
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247 |
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248 | #define IPPROTO_IP 0
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249 | #define IPPROTO_ICMP 1
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250 | #define IPPROTO_TCP 6
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251 | #define IPPROTO_UDP 17
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252 | #if LWIP_IPV6
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253 | #define IPPROTO_IPV6 41
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254 | #define IPPROTO_ICMPV6 58
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255 | #endif /* LWIP_IPV6 */
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256 | #define IPPROTO_UDPLITE 136
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257 | #define IPPROTO_RAW 255
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258 |
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259 | /* Flags we can use with send and recv. */
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260 | #define MSG_PEEK 0x01 /* Peeks at an incoming message */
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261 | #define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */
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262 | #define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
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263 | #define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */
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264 | #define MSG_MORE 0x10 /* Sender will send more */
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265 | #define MSG_NOSIGNAL 0x20 /* Uninmplemented: Requests not to send the SIGPIPE signal if an attempt to send is made on a stream-oriented socket that is no longer connected. */
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266 |
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267 |
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268 | /*
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269 | * Options for level IPPROTO_IP
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270 | */
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271 | #define IP_TOS 1
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272 | #define IP_TTL 2
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273 | #define IP_PKTINFO 8
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274 |
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275 | #if LWIP_TCP
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276 | /*
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277 | * Options for level IPPROTO_TCP
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278 | */
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279 | #define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
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280 | #define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
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281 | #define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
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282 | #define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */
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283 | #define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */
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284 | #endif /* LWIP_TCP */
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285 |
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286 | #if LWIP_IPV6
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287 | /*
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288 | * Options for level IPPROTO_IPV6
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289 | */
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290 | #define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */
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291 | #define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */
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292 | #endif /* LWIP_IPV6 */
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293 |
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294 | #if LWIP_UDP && LWIP_UDPLITE
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295 | /*
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296 | * Options for level IPPROTO_UDPLITE
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297 | */
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298 | #define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */
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299 | #define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */
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300 | #endif /* LWIP_UDP && LWIP_UDPLITE*/
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301 |
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302 |
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303 | #if LWIP_MULTICAST_TX_OPTIONS
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304 | /*
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305 | * Options and types for UDP multicast traffic handling
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306 | */
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307 | #define IP_MULTICAST_TTL 5
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308 | #define IP_MULTICAST_IF 6
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309 | #define IP_MULTICAST_LOOP 7
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310 | #endif /* LWIP_MULTICAST_TX_OPTIONS */
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311 |
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312 | #if LWIP_IGMP
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313 | /*
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314 | * Options and types related to multicast membership
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315 | */
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316 | #define IP_ADD_MEMBERSHIP 3
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317 | #define IP_DROP_MEMBERSHIP 4
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318 |
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319 | typedef struct ip_mreq {
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320 | struct in_addr imr_multiaddr; /* IP multicast address of group */
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321 | struct in_addr imr_interface; /* local IP address of interface */
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322 | } ip_mreq;
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323 | #endif /* LWIP_IGMP */
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324 |
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325 | #if LWIP_IPV4
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326 | struct in_pktinfo {
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327 | unsigned int ipi_ifindex; /* Interface index */
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328 | struct in_addr ipi_addr; /* Destination (from header) address */
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329 | };
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330 | #endif /* LWIP_IPV4 */
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331 |
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332 | #if LWIP_IPV6_MLD
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333 | /*
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334 | * Options and types related to IPv6 multicast membership
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335 | */
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336 | #define IPV6_JOIN_GROUP 12
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337 | #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
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338 | #define IPV6_LEAVE_GROUP 13
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339 | #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
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340 |
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341 | typedef struct ipv6_mreq {
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342 | struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */
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343 | unsigned int ipv6mr_interface; /* interface index, or 0 */
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344 | } ipv6_mreq;
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345 | #endif /* LWIP_IPV6_MLD */
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346 |
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347 | /*
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348 | * The Type of Service provides an indication of the abstract
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349 | * parameters of the quality of service desired. These parameters are
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350 | * to be used to guide the selection of the actual service parameters
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351 | * when transmitting a datagram through a particular network. Several
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352 | * networks offer service precedence, which somehow treats high
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353 | * precedence traffic as more important than other traffic (generally
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354 | * by accepting only traffic above a certain precedence at time of high
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355 | * load). The major choice is a three way tradeoff between low-delay,
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356 | * high-reliability, and high-throughput.
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357 | * The use of the Delay, Throughput, and Reliability indications may
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358 | * increase the cost (in some sense) of the service. In many networks
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359 | * better performance for one of these parameters is coupled with worse
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360 | * performance on another. Except for very unusual cases at most two
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361 | * of these three indications should be set.
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362 | */
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363 | #define IPTOS_TOS_MASK 0x1E
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364 | #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
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365 | #define IPTOS_LOWDELAY 0x10
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366 | #define IPTOS_THROUGHPUT 0x08
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367 | #define IPTOS_RELIABILITY 0x04
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368 | #define IPTOS_LOWCOST 0x02
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369 | #define IPTOS_MINCOST IPTOS_LOWCOST
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370 |
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371 | /*
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372 | * The Network Control precedence designation is intended to be used
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373 | * within a network only. The actual use and control of that
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374 | * designation is up to each network. The Internetwork Control
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375 | * designation is intended for use by gateway control originators only.
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376 | * If the actual use of these precedence designations is of concern to
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377 | * a particular network, it is the responsibility of that network to
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378 | * control the access to, and use of, those precedence designations.
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379 | */
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380 | #define IPTOS_PREC_MASK 0xe0
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381 | #define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
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382 | #define IPTOS_PREC_NETCONTROL 0xe0
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383 | #define IPTOS_PREC_INTERNETCONTROL 0xc0
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384 | #define IPTOS_PREC_CRITIC_ECP 0xa0
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385 | #define IPTOS_PREC_FLASHOVERRIDE 0x80
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386 | #define IPTOS_PREC_FLASH 0x60
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387 | #define IPTOS_PREC_IMMEDIATE 0x40
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388 | #define IPTOS_PREC_PRIORITY 0x20
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389 | #define IPTOS_PREC_ROUTINE 0x00
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390 |
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391 |
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392 | /*
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393 | * Commands for ioctlsocket(), taken from the BSD file fcntl.h.
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394 | * lwip_ioctl only supports FIONREAD and FIONBIO, for now
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395 | *
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396 | * Ioctl's have the command encoded in the lower word,
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397 | * and the size of any in or out parameters in the upper
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398 | * word. The high 2 bits of the upper word are used
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399 | * to encode the in/out status of the parameter; for now
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400 | * we restrict parameters to at most 128 bytes.
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401 | */
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402 | #if !defined(FIONREAD) || !defined(FIONBIO)
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403 | #define IOCPARM_MASK 0x7fU /* parameters must be < 128 bytes */
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404 | #define IOC_VOID 0x20000000UL /* no parameters */
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405 | #define IOC_OUT 0x40000000UL /* copy out parameters */
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406 | #define IOC_IN 0x80000000UL /* copy in parameters */
|
---|
407 | #define IOC_INOUT (IOC_IN|IOC_OUT)
|
---|
408 | /* 0x20000000 distinguishes new &
|
---|
409 | old ioctl's */
|
---|
410 | #define _IO(x,y) ((long)(IOC_VOID|((x)<<8)|(y)))
|
---|
411 |
|
---|
412 | #define _IOR(x,y,t) ((long)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y)))
|
---|
413 |
|
---|
414 | #define _IOW(x,y,t) ((long)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y)))
|
---|
415 | #endif /* !defined(FIONREAD) || !defined(FIONBIO) */
|
---|
416 |
|
---|
417 | #ifndef FIONREAD
|
---|
418 | #define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */
|
---|
419 | #endif
|
---|
420 | #ifndef FIONBIO
|
---|
421 | #define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
|
---|
422 | #endif
|
---|
423 |
|
---|
424 | /* Socket I/O Controls: unimplemented */
|
---|
425 | #ifndef SIOCSHIWAT
|
---|
426 | #define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */
|
---|
427 | #define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */
|
---|
428 | #define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */
|
---|
429 | #define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */
|
---|
430 | #define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */
|
---|
431 | #endif
|
---|
432 |
|
---|
433 | /* commands for fnctl */
|
---|
434 | #ifndef F_GETFL
|
---|
435 | #define F_GETFL 3
|
---|
436 | #endif
|
---|
437 | #ifndef F_SETFL
|
---|
438 | #define F_SETFL 4
|
---|
439 | #endif
|
---|
440 |
|
---|
441 | /* File status flags and file access modes for fnctl,
|
---|
442 | these are bits in an int. */
|
---|
443 | #ifndef O_NONBLOCK
|
---|
444 | #define O_NONBLOCK 1 /* nonblocking I/O */
|
---|
445 | #endif
|
---|
446 | #ifndef O_NDELAY
|
---|
447 | #define O_NDELAY O_NONBLOCK /* same as O_NONBLOCK, for compatibility */
|
---|
448 | #endif
|
---|
449 | #ifndef O_RDONLY
|
---|
450 | #define O_RDONLY 2
|
---|
451 | #endif
|
---|
452 | #ifndef O_WRONLY
|
---|
453 | #define O_WRONLY 4
|
---|
454 | #endif
|
---|
455 | #ifndef O_RDWR
|
---|
456 | #define O_RDWR (O_RDONLY|O_WRONLY)
|
---|
457 | #endif
|
---|
458 |
|
---|
459 | #ifndef SHUT_RD
|
---|
460 | #define SHUT_RD 0
|
---|
461 | #define SHUT_WR 1
|
---|
462 | #define SHUT_RDWR 2
|
---|
463 | #endif
|
---|
464 |
|
---|
465 | /* FD_SET used for lwip_select */
|
---|
466 | #ifndef FD_SET
|
---|
467 | #undef FD_SETSIZE
|
---|
468 | /* Make FD_SETSIZE match NUM_SOCKETS in socket.c */
|
---|
469 | #define FD_SETSIZE MEMP_NUM_NETCONN
|
---|
470 | #define LWIP_SELECT_MAXNFDS (FD_SETSIZE + LWIP_SOCKET_OFFSET)
|
---|
471 | #define FDSETSAFESET(n, code) do { \
|
---|
472 | if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \
|
---|
473 | code; }} while(0)
|
---|
474 | #define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\
|
---|
475 | (code) : 0)
|
---|
476 | #define FD_SET(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] | (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))))
|
---|
477 | #define FD_CLR(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & ~(1 << (((n)-LWIP_SOCKET_OFFSET) & 7))))
|
---|
478 | #define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & (1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))
|
---|
479 | #define FD_ZERO(p) memset((void*)(p), 0, sizeof(*(p)))
|
---|
480 |
|
---|
481 | typedef struct fd_set
|
---|
482 | {
|
---|
483 | unsigned char fd_bits [(FD_SETSIZE+7)/8];
|
---|
484 | } fd_set;
|
---|
485 |
|
---|
486 | #elif FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN)
|
---|
487 | #error "external FD_SETSIZE too small for number of sockets"
|
---|
488 | #else
|
---|
489 | #define LWIP_SELECT_MAXNFDS FD_SETSIZE
|
---|
490 | #endif /* FD_SET */
|
---|
491 |
|
---|
492 | /* poll-related defines and types */
|
---|
493 | /* @todo: find a better way to guard the definition of these defines and types if already defined */
|
---|
494 | #if !defined(POLLIN) && !defined(POLLOUT)
|
---|
495 | #define POLLIN 0x1
|
---|
496 | #define POLLOUT 0x2
|
---|
497 | #define POLLERR 0x4
|
---|
498 | #define POLLNVAL 0x8
|
---|
499 | /* Below values are unimplemented */
|
---|
500 | #define POLLRDNORM 0x10
|
---|
501 | #define POLLRDBAND 0x20
|
---|
502 | #define POLLPRI 0x40
|
---|
503 | #define POLLWRNORM 0x80
|
---|
504 | #define POLLWRBAND 0x100
|
---|
505 | #define POLLHUP 0x200
|
---|
506 | typedef unsigned int nfds_t;
|
---|
507 | struct pollfd
|
---|
508 | {
|
---|
509 | int fd;
|
---|
510 | short events;
|
---|
511 | short revents;
|
---|
512 | };
|
---|
513 | #endif
|
---|
514 |
|
---|
515 | /** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided
|
---|
516 | * by your system, set this to 0 and include <sys/time.h> in cc.h */
|
---|
517 | #ifndef LWIP_TIMEVAL_PRIVATE
|
---|
518 | #define LWIP_TIMEVAL_PRIVATE 1
|
---|
519 | #endif
|
---|
520 |
|
---|
521 | #if LWIP_TIMEVAL_PRIVATE
|
---|
522 | struct timeval {
|
---|
523 | long tv_sec; /* seconds */
|
---|
524 | long tv_usec; /* and microseconds */
|
---|
525 | };
|
---|
526 | #endif /* LWIP_TIMEVAL_PRIVATE */
|
---|
527 |
|
---|
528 | #define lwip_socket_init() /* Compatibility define, no init needed. */
|
---|
529 | void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */
|
---|
530 | void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */
|
---|
531 |
|
---|
532 | #if LWIP_COMPAT_SOCKETS == 2
|
---|
533 | /* This helps code parsers/code completion by not having the COMPAT functions as defines */
|
---|
534 | #define lwip_accept accept
|
---|
535 | #define lwip_bind bind
|
---|
536 | #define lwip_shutdown shutdown
|
---|
537 | #define lwip_getpeername getpeername
|
---|
538 | #define lwip_getsockname getsockname
|
---|
539 | #define lwip_setsockopt setsockopt
|
---|
540 | #define lwip_getsockopt getsockopt
|
---|
541 | #define lwip_close closesocket
|
---|
542 | #define lwip_connect connect
|
---|
543 | #define lwip_listen listen
|
---|
544 | #define lwip_recv recv
|
---|
545 | #define lwip_recvmsg recvmsg
|
---|
546 | #define lwip_recvfrom recvfrom
|
---|
547 | #define lwip_send send
|
---|
548 | #define lwip_sendmsg sendmsg
|
---|
549 | #define lwip_sendto sendto
|
---|
550 | #define lwip_socket socket
|
---|
551 | #if LWIP_SOCKET_SELECT
|
---|
552 | #define lwip_select select
|
---|
553 | #endif
|
---|
554 | #if LWIP_SOCKET_POLL
|
---|
555 | #define lwip_poll poll
|
---|
556 | #endif
|
---|
557 | #define lwip_ioctl ioctlsocket
|
---|
558 | #define lwip_inet_ntop inet_ntop
|
---|
559 | #define lwip_inet_pton inet_pton
|
---|
560 |
|
---|
561 | #if LWIP_POSIX_SOCKETS_IO_NAMES
|
---|
562 | #define lwip_read read
|
---|
563 | #define lwip_readv readv
|
---|
564 | #define lwip_write write
|
---|
565 | #define lwip_writev writev
|
---|
566 | #undef lwip_close
|
---|
567 | #define lwip_close close
|
---|
568 | #define closesocket(s) close(s)
|
---|
569 | int fcntl(int s, int cmd, ...);
|
---|
570 | #undef lwip_ioctl
|
---|
571 | #define lwip_ioctl ioctl
|
---|
572 | #define ioctlsocket ioctl
|
---|
573 | #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
|
---|
574 | #endif /* LWIP_COMPAT_SOCKETS == 2 */
|
---|
575 |
|
---|
576 | int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
|
---|
577 | int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
|
---|
578 | int lwip_shutdown(int s, int how);
|
---|
579 | int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
|
---|
580 | int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
|
---|
581 | int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
|
---|
582 | int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
|
---|
583 | int lwip_close(int s);
|
---|
584 | int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
|
---|
585 | int lwip_listen(int s, int backlog);
|
---|
586 | ssize_t lwip_recv(int s, void *mem, size_t len, int flags);
|
---|
587 | ssize_t lwip_read(int s, void *mem, size_t len);
|
---|
588 | ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt);
|
---|
589 | ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags,
|
---|
590 | struct sockaddr *from, socklen_t *fromlen);
|
---|
591 | ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags);
|
---|
592 | ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags);
|
---|
593 | ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags);
|
---|
594 | ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags,
|
---|
595 | const struct sockaddr *to, socklen_t tolen);
|
---|
596 | int lwip_socket(int domain, int type, int protocol);
|
---|
597 | ssize_t lwip_write(int s, const void *dataptr, size_t size);
|
---|
598 | ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt);
|
---|
599 | #if LWIP_SOCKET_SELECT
|
---|
600 | int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
|
---|
601 | struct timeval *timeout);
|
---|
602 | #endif
|
---|
603 | #if LWIP_SOCKET_POLL
|
---|
604 | int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout);
|
---|
605 | #endif
|
---|
606 | int lwip_ioctl(int s, long cmd, void *argp);
|
---|
607 | int lwip_fcntl(int s, int cmd, int val);
|
---|
608 | const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size);
|
---|
609 | int lwip_inet_pton(int af, const char *src, void *dst);
|
---|
610 |
|
---|
611 | #if LWIP_COMPAT_SOCKETS
|
---|
612 | #if LWIP_COMPAT_SOCKETS != 2
|
---|
613 | /** @ingroup socket */
|
---|
614 | #define accept(s,addr,addrlen) lwip_accept(s,addr,addrlen)
|
---|
615 | /** @ingroup socket */
|
---|
616 | #define bind(s,name,namelen) lwip_bind(s,name,namelen)
|
---|
617 | /** @ingroup socket */
|
---|
618 | #define shutdown(s,how) lwip_shutdown(s,how)
|
---|
619 | /** @ingroup socket */
|
---|
620 | #define getpeername(s,name,namelen) lwip_getpeername(s,name,namelen)
|
---|
621 | /** @ingroup socket */
|
---|
622 | #define getsockname(s,name,namelen) lwip_getsockname(s,name,namelen)
|
---|
623 | /** @ingroup socket */
|
---|
624 | #define setsockopt(s,level,optname,opval,optlen) lwip_setsockopt(s,level,optname,opval,optlen)
|
---|
625 | /** @ingroup socket */
|
---|
626 | #define getsockopt(s,level,optname,opval,optlen) lwip_getsockopt(s,level,optname,opval,optlen)
|
---|
627 | /** @ingroup socket */
|
---|
628 | #define closesocket(s) lwip_close(s)
|
---|
629 | /** @ingroup socket */
|
---|
630 | #define connect(s,name,namelen) lwip_connect(s,name,namelen)
|
---|
631 | /** @ingroup socket */
|
---|
632 | #define listen(s,backlog) lwip_listen(s,backlog)
|
---|
633 | /** @ingroup socket */
|
---|
634 | #define recv(s,mem,len,flags) lwip_recv(s,mem,len,flags)
|
---|
635 | /** @ingroup socket */
|
---|
636 | #define recvmsg(s,message,flags) lwip_recvmsg(s,message,flags)
|
---|
637 | /** @ingroup socket */
|
---|
638 | #define recvfrom(s,mem,len,flags,from,fromlen) lwip_recvfrom(s,mem,len,flags,from,fromlen)
|
---|
639 | /** @ingroup socket */
|
---|
640 | #define send(s,dataptr,size,flags) lwip_send(s,dataptr,size,flags)
|
---|
641 | /** @ingroup socket */
|
---|
642 | #define sendmsg(s,message,flags) lwip_sendmsg(s,message,flags)
|
---|
643 | /** @ingroup socket */
|
---|
644 | #define sendto(s,dataptr,size,flags,to,tolen) lwip_sendto(s,dataptr,size,flags,to,tolen)
|
---|
645 | /** @ingroup socket */
|
---|
646 | #define socket(domain,type,protocol) lwip_socket(domain,type,protocol)
|
---|
647 | #if LWIP_SOCKET_SELECT
|
---|
648 | /** @ingroup socket */
|
---|
649 | #define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout)
|
---|
650 | #endif
|
---|
651 | #if LWIP_SOCKET_POLL
|
---|
652 | /** @ingroup socket */
|
---|
653 | #define poll(fds,nfds,timeout) lwip_poll(fds,nfds,timeout)
|
---|
654 | #endif
|
---|
655 | /** @ingroup socket */
|
---|
656 | #define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp)
|
---|
657 | /** @ingroup socket */
|
---|
658 | #define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size)
|
---|
659 | /** @ingroup socket */
|
---|
660 | #define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst)
|
---|
661 |
|
---|
662 | #if LWIP_POSIX_SOCKETS_IO_NAMES
|
---|
663 | /** @ingroup socket */
|
---|
664 | #define read(s,mem,len) lwip_read(s,mem,len)
|
---|
665 | /** @ingroup socket */
|
---|
666 | #define readv(s,iov,iovcnt) lwip_readv(s,iov,iovcnt)
|
---|
667 | /** @ingroup socket */
|
---|
668 | #define write(s,dataptr,len) lwip_write(s,dataptr,len)
|
---|
669 | /** @ingroup socket */
|
---|
670 | #define writev(s,iov,iovcnt) lwip_writev(s,iov,iovcnt)
|
---|
671 | /** @ingroup socket */
|
---|
672 | #define close(s) lwip_close(s)
|
---|
673 | /** @ingroup socket */
|
---|
674 | #define fcntl(s,cmd,val) lwip_fcntl(s,cmd,val)
|
---|
675 | /** @ingroup socket */
|
---|
676 | #define ioctl(s,cmd,argp) lwip_ioctl(s,cmd,argp)
|
---|
677 | #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
|
---|
678 | #endif /* LWIP_COMPAT_SOCKETS != 2 */
|
---|
679 |
|
---|
680 | #endif /* LWIP_COMPAT_SOCKETS */
|
---|
681 |
|
---|
682 | #ifdef __cplusplus
|
---|
683 | }
|
---|
684 | #endif
|
---|
685 |
|
---|
686 | #endif /* LWIP_SOCKET */
|
---|
687 |
|
---|
688 | #endif /* LWIP_HDR_SOCKETS_H */
|
---|