1 | /**
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2 | * @file
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3 | * Sockets BSD-Like API module
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4 | *
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5 | */
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6 |
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7 | /*
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8 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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9 | * All rights reserved.
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10 | *
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11 | * Redistribution and use in source and binary forms, with or without modification,
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12 | * are permitted provided that the following conditions are met:
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13 | *
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14 | * 1. Redistributions of source code must retain the above copyright notice,
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15 | * this list of conditions and the following disclaimer.
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16 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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17 | * this list of conditions and the following disclaimer in the documentation
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18 | * and/or other materials provided with the distribution.
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19 | * 3. The name of the author may not be used to endorse or promote products
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20 | * derived from this software without specific prior written permission.
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21 | *
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22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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31 | * OF SUCH DAMAGE.
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32 | *
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33 | * This file is part of the lwIP TCP/IP stack.
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34 | *
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35 | * Author: Adam Dunkels <adam@sics.se>
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36 | *
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37 | * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
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38 | *
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39 | */
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40 |
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41 | #include "lwip/opt.h"
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42 |
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43 | #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
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44 |
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45 | #include "lwip/sockets.h"
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46 | #include "lwip/api.h"
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47 | #include "lwip/sys.h"
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48 | #include "lwip/igmp.h"
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49 | #include "lwip/inet.h"
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50 | #include "lwip/tcp.h"
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51 | #include "lwip/raw.h"
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52 | #include "lwip/udp.h"
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53 | #include "lwip/tcpip.h"
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54 | #include "lwip/pbuf.h"
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55 | #if LWIP_CHECKSUM_ON_COPY
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56 | #include "lwip/inet_chksum.h"
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57 | #endif
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58 |
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59 | #include <string.h>
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60 |
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61 | #define NUM_SOCKETS MEMP_NUM_NETCONN
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62 |
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63 | /** Contains all internal pointers and states used for a socket */
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64 | struct lwip_sock {
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65 | /** sockets currently are built on netconns, each socket has one netconn */
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66 | struct netconn *conn;
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67 | /** data that was left from the previous read */
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68 | void *lastdata;
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69 | /** offset in the data that was left from the previous read */
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70 | u16_t lastoffset;
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71 | /** number of times data was received, set by event_callback(),
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72 | tested by the receive and select functions */
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73 | s16_t rcvevent;
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74 | /** number of times data was ACKed (free send buffer), set by event_callback(),
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75 | tested by select */
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76 | u16_t sendevent;
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77 | /** error happened for this socket, set by event_callback(), tested by select */
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78 | u16_t errevent;
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79 | /** last error that occurred on this socket */
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80 | int err;
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81 | /** counter of how many threads are waiting for this socket using select */
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82 | int select_waiting;
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83 | };
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84 |
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85 | /** Description for a task waiting in select */
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86 | struct lwip_select_cb {
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87 | /** Pointer to the next waiting task */
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88 | struct lwip_select_cb *next;
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89 | /** Pointer to the previous waiting task */
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90 | struct lwip_select_cb *prev;
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91 | /** readset passed to select */
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92 | fd_set *readset;
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93 | /** writeset passed to select */
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94 | fd_set *writeset;
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95 | /** unimplemented: exceptset passed to select */
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96 | fd_set *exceptset;
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97 | /** don't signal the same semaphore twice: set to 1 when signalled */
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98 | int sem_signalled;
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99 | /** semaphore to wake up a task waiting for select */
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100 | sys_sem_t sem;
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101 | };
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102 |
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103 | /** This struct is used to pass data to the set/getsockopt_internal
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104 | * functions running in tcpip_thread context (only a void* is allowed) */
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105 | struct lwip_setgetsockopt_data {
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106 | /** socket struct for which to change options */
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107 | struct lwip_sock *sock;
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108 | #ifdef LWIP_DEBUG
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109 | /** socket index for which to change options */
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110 | int s;
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111 | #endif /* LWIP_DEBUG */
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112 | /** level of the option to process */
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113 | int level;
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114 | /** name of the option to process */
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115 | int optname;
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116 | /** set: value to set the option to
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117 | * get: value of the option is stored here */
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118 | void *optval;
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119 | /** size of *optval */
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120 | socklen_t *optlen;
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121 | /** if an error occures, it is temporarily stored here */
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122 | err_t err;
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123 | };
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124 |
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125 | /** The global array of available sockets */
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126 | static struct lwip_sock sockets[NUM_SOCKETS];
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127 | /** The global list of tasks waiting for select */
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128 | static struct lwip_select_cb *select_cb_list;
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129 | /** This counter is increased from lwip_select when the list is chagned
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130 | and checked in event_callback to see if it has changed. */
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131 | static volatile int select_cb_ctr;
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132 |
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133 | /** Table to quickly map an lwIP error (err_t) to a socket error
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134 | * by using -err as an index */
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135 | static const int err_to_errno_table[] = {
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136 | 0, /* ERR_OK 0 No error, everything OK. */
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137 | ENOMEM, /* ERR_MEM -1 Out of memory error. */
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138 | ENOBUFS, /* ERR_BUF -2 Buffer error. */
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139 | EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
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140 | EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
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141 | EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
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142 | EINVAL, /* ERR_VAL -6 Illegal value. */
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143 | EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
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144 | EADDRINUSE, /* ERR_USE -8 Address in use. */
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145 | EALREADY, /* ERR_ISCONN -9 Already connected. */
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146 | ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
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147 | ECONNRESET, /* ERR_RST -11 Connection reset. */
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148 | ENOTCONN, /* ERR_CLSD -12 Connection closed. */
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149 | ENOTCONN, /* ERR_CONN -13 Not connected. */
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150 | EIO, /* ERR_ARG -14 Illegal argument. */
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151 | -1, /* ERR_IF -15 Low-level netif error */
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152 | };
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153 |
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154 | #define ERR_TO_ERRNO_TABLE_SIZE \
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155 | (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
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156 |
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157 | #define err_to_errno(err) \
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158 | ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
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159 | err_to_errno_table[-(err)] : EIO)
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160 |
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161 | #ifdef ERRNO
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162 | #ifndef set_errno
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163 | #define set_errno(err) errno = (err)
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164 | #endif
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165 | #else /* ERRNO */
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166 | #define set_errno(err)
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167 | #endif /* ERRNO */
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168 |
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169 | #define sock_set_errno(sk, e) do { \
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170 | sk->err = (e); \
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171 | set_errno(sk->err); \
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172 | } while (0)
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173 |
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174 | /* Forward delcaration of some functions */
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175 | static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
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176 | static void lwip_getsockopt_internal(void *arg);
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177 | static void lwip_setsockopt_internal(void *arg);
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178 |
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179 | /**
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180 | * Initialize this module. This function has to be called before any other
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181 | * functions in this module!
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182 | */
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183 | void
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184 | lwip_socket_init(void)
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185 | {
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186 | }
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187 |
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188 | /**
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189 | * Map a externally used socket index to the internal socket representation.
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190 | *
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191 | * @param s externally used socket index
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192 | * @return struct lwip_sock for the socket or NULL if not found
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193 | */
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194 | static struct lwip_sock *
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195 | get_socket(int s)
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196 | {
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197 | struct lwip_sock *sock;
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198 |
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199 | if ((s < 0) || (s >= NUM_SOCKETS)) {
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200 | LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
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201 | set_errno(EBADF);
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202 | return NULL;
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203 | }
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204 |
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205 | sock = &sockets[s];
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206 |
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207 | if (!sock->conn) {
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208 | LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
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209 | set_errno(EBADF);
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210 | return NULL;
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211 | }
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212 |
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213 | return sock;
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214 | }
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215 |
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216 | /**
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217 | * Same as get_socket but doesn't set errno
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218 | *
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219 | * @param s externally used socket index
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220 | * @return struct lwip_sock for the socket or NULL if not found
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221 | */
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222 | static struct lwip_sock *
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223 | tryget_socket(int s)
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224 | {
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225 | if ((s < 0) || (s >= NUM_SOCKETS)) {
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226 | return NULL;
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227 | }
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228 | if (!sockets[s].conn) {
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229 | return NULL;
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230 | }
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231 | return &sockets[s];
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232 | }
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233 |
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234 | /**
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235 | * Allocate a new socket for a given netconn.
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236 | *
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237 | * @param newconn the netconn for which to allocate a socket
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238 | * @param accepted 1 if socket has been created by accept(),
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239 | * 0 if socket has been created by socket()
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240 | * @return the index of the new socket; -1 on error
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241 | */
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242 | static int
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243 | alloc_socket(struct netconn *newconn, int accepted)
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244 | {
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245 | int i;
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246 | SYS_ARCH_DECL_PROTECT(lev);
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247 |
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248 | /* allocate a new socket identifier */
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249 | for (i = 0; i < NUM_SOCKETS; ++i) {
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250 | /* Protect socket array */
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251 | SYS_ARCH_PROTECT(lev);
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252 | if (!sockets[i].conn) {
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253 | sockets[i].conn = newconn;
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254 | /* The socket is not yet known to anyone, so no need to protect
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255 | after having marked it as used. */
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256 | SYS_ARCH_UNPROTECT(lev);
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257 | sockets[i].lastdata = NULL;
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258 | sockets[i].lastoffset = 0;
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259 | sockets[i].rcvevent = 0;
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260 | /* TCP sendbuf is empty, but the socket is not yet writable until connected
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261 | * (unless it has been created by accept()). */
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262 | sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
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263 | sockets[i].errevent = 0;
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264 | sockets[i].err = 0;
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265 | sockets[i].select_waiting = 0;
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266 | return i;
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267 | }
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268 | SYS_ARCH_UNPROTECT(lev);
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269 | }
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270 | return -1;
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271 | }
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272 |
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273 | /** Free a socket. The socket's netconn must have been
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274 | * delete before!
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275 | *
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276 | * @param sock the socket to free
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277 | * @param is_tcp != 0 for TCP sockets, used to free lastdata
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278 | */
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279 | static void
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280 | free_socket(struct lwip_sock *sock, int is_tcp)
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281 | {
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282 | void *lastdata;
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283 | SYS_ARCH_DECL_PROTECT(lev);
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284 |
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285 | lastdata = sock->lastdata;
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286 | sock->lastdata = NULL;
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287 | sock->lastoffset = 0;
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288 | sock->err = 0;
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289 |
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290 | /* Protect socket array */
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291 | SYS_ARCH_PROTECT(lev);
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292 | sock->conn = NULL;
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293 | SYS_ARCH_UNPROTECT(lev);
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294 | /* don't use 'sock' after this line, as another task might have allocated it */
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295 |
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296 | if (lastdata != NULL) {
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297 | if (is_tcp) {
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298 | pbuf_free((struct pbuf *)lastdata);
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299 | } else {
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300 | netbuf_delete((struct netbuf *)lastdata);
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301 | }
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302 | }
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303 | }
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304 |
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305 | /* Below this, the well-known socket functions are implemented.
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306 | * Use google.com or opengroup.org to get a good description :-)
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307 | *
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308 | * Exceptions are documented!
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309 | */
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310 |
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311 | int
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312 | lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
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313 | {
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314 | struct lwip_sock *sock, *nsock;
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315 | struct netconn *newconn;
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316 | ip_addr_t naddr;
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317 | u16_t port;
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318 | int newsock;
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319 | struct sockaddr_in sin;
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320 | err_t err;
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321 | SYS_ARCH_DECL_PROTECT(lev);
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322 |
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323 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
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324 | sock = get_socket(s);
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325 | if (!sock) {
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326 | return -1;
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327 | }
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328 |
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329 | if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
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330 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
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331 | sock_set_errno(sock, EWOULDBLOCK);
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332 | return -1;
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333 | }
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334 |
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335 | /* wait for a new connection */
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336 | err = netconn_accept(sock->conn, &newconn);
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337 | if (err != ERR_OK) {
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338 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
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339 | if (netconn_type(sock->conn) != NETCONN_TCP) {
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340 | sock_set_errno(sock, EOPNOTSUPP);
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341 | return EOPNOTSUPP;
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342 | }
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343 | sock_set_errno(sock, err_to_errno(err));
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344 | return -1;
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345 | }
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346 | LWIP_ASSERT("newconn != NULL", newconn != NULL);
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347 | /* Prevent automatic window updates, we do this on our own! */
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348 | netconn_set_noautorecved(newconn, 1);
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349 |
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350 | /* get the IP address and port of the remote host */
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351 | err = netconn_peer(newconn, &naddr, &port);
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352 | if (err != ERR_OK) {
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353 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
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354 | netconn_delete(newconn);
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355 | sock_set_errno(sock, err_to_errno(err));
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356 | return -1;
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357 | }
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358 |
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359 | /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
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360 | * not be NULL if addr is valid.
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361 | */
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362 | if (NULL != addr) {
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363 | LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
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364 | memset(&sin, 0, sizeof(sin));
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365 | sin.sin_len = sizeof(sin);
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366 | sin.sin_family = AF_INET;
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367 | sin.sin_port = htons(port);
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368 | inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
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369 |
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370 | if (*addrlen > sizeof(sin))
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371 | *addrlen = sizeof(sin);
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372 |
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373 | MEMCPY(addr, &sin, *addrlen);
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374 | }
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375 |
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376 | newsock = alloc_socket(newconn, 1);
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377 | if (newsock == -1) {
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378 | netconn_delete(newconn);
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379 | sock_set_errno(sock, ENFILE);
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380 | return -1;
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381 | }
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382 | LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
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383 | LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
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384 | nsock = &sockets[newsock];
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385 |
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386 | /* See event_callback: If data comes in right away after an accept, even
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387 | * though the server task might not have created a new socket yet.
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388 | * In that case, newconn->socket is counted down (newconn->socket--),
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389 | * so nsock->rcvevent is >= 1 here!
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390 | */
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391 | SYS_ARCH_PROTECT(lev);
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392 | nsock->rcvevent += (s16_t)(-1 - newconn->socket);
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393 | newconn->socket = newsock;
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394 | SYS_ARCH_UNPROTECT(lev);
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395 |
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396 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
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397 | ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
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398 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
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399 |
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400 | sock_set_errno(sock, 0);
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401 | return newsock;
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402 | }
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403 |
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404 | int
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405 | lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
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406 | {
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407 | struct lwip_sock *sock;
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408 | ip_addr_t local_addr;
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409 | u16_t local_port;
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410 | err_t err;
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411 | const struct sockaddr_in *name_in;
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412 |
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413 | sock = get_socket(s);
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414 | if (!sock) {
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415 | return -1;
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416 | }
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417 |
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418 | /* check size, familiy and alignment of 'name' */
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419 | LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
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420 | ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
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421 | sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
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422 | name_in = (const struct sockaddr_in *)(void*)name;
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423 |
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424 | inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
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425 | local_port = name_in->sin_port;
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426 |
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427 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
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428 | ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
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429 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
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430 |
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431 | err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
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432 |
|
---|
433 | if (err != ERR_OK) {
|
---|
434 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
|
---|
435 | sock_set_errno(sock, err_to_errno(err));
|
---|
436 | return -1;
|
---|
437 | }
|
---|
438 |
|
---|
439 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
|
---|
440 | sock_set_errno(sock, 0);
|
---|
441 | return 0;
|
---|
442 | }
|
---|
443 |
|
---|
444 | int
|
---|
445 | lwip_close(int s)
|
---|
446 | {
|
---|
447 | struct lwip_sock *sock;
|
---|
448 | int is_tcp = 0;
|
---|
449 |
|
---|
450 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
|
---|
451 |
|
---|
452 | sock = get_socket(s);
|
---|
453 | if (!sock) {
|
---|
454 | return -1;
|
---|
455 | }
|
---|
456 |
|
---|
457 | if(sock->conn != NULL) {
|
---|
458 | is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
|
---|
459 | } else {
|
---|
460 | LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
|
---|
461 | }
|
---|
462 |
|
---|
463 | netconn_delete(sock->conn);
|
---|
464 |
|
---|
465 | free_socket(sock, is_tcp);
|
---|
466 | set_errno(0);
|
---|
467 | return 0;
|
---|
468 | }
|
---|
469 |
|
---|
470 | int
|
---|
471 | lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
|
---|
472 | {
|
---|
473 | struct lwip_sock *sock;
|
---|
474 | err_t err;
|
---|
475 | const struct sockaddr_in *name_in;
|
---|
476 |
|
---|
477 | sock = get_socket(s);
|
---|
478 | if (!sock) {
|
---|
479 | return -1;
|
---|
480 | }
|
---|
481 |
|
---|
482 | /* check size, familiy and alignment of 'name' */
|
---|
483 | LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
|
---|
484 | ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
|
---|
485 | sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
|
---|
486 | name_in = (const struct sockaddr_in *)(void*)name;
|
---|
487 |
|
---|
488 | if (name_in->sin_family == AF_UNSPEC) {
|
---|
489 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
|
---|
490 | err = netconn_disconnect(sock->conn);
|
---|
491 | } else {
|
---|
492 | ip_addr_t remote_addr;
|
---|
493 | u16_t remote_port;
|
---|
494 |
|
---|
495 | inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
|
---|
496 | remote_port = name_in->sin_port;
|
---|
497 |
|
---|
498 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
|
---|
499 | ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
|
---|
500 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
|
---|
501 |
|
---|
502 | err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
|
---|
503 | }
|
---|
504 |
|
---|
505 | if (err != ERR_OK) {
|
---|
506 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
|
---|
507 | sock_set_errno(sock, err_to_errno(err));
|
---|
508 | return -1;
|
---|
509 | }
|
---|
510 |
|
---|
511 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
|
---|
512 | sock_set_errno(sock, 0);
|
---|
513 | return 0;
|
---|
514 | }
|
---|
515 |
|
---|
516 | /**
|
---|
517 | * Set a socket into listen mode.
|
---|
518 | * The socket may not have been used for another connection previously.
|
---|
519 | *
|
---|
520 | * @param s the socket to set to listening mode
|
---|
521 | * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
|
---|
522 | * @return 0 on success, non-zero on failure
|
---|
523 | */
|
---|
524 | int
|
---|
525 | lwip_listen(int s, int backlog)
|
---|
526 | {
|
---|
527 | struct lwip_sock *sock;
|
---|
528 | err_t err;
|
---|
529 |
|
---|
530 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
|
---|
531 |
|
---|
532 | sock = get_socket(s);
|
---|
533 | if (!sock) {
|
---|
534 | return -1;
|
---|
535 | }
|
---|
536 |
|
---|
537 | /* limit the "backlog" parameter to fit in an u8_t */
|
---|
538 | backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
|
---|
539 |
|
---|
540 | err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
|
---|
541 |
|
---|
542 | if (err != ERR_OK) {
|
---|
543 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
|
---|
544 | if (netconn_type(sock->conn) != NETCONN_TCP) {
|
---|
545 | sock_set_errno(sock, EOPNOTSUPP);
|
---|
546 | return EOPNOTSUPP;
|
---|
547 | }
|
---|
548 | sock_set_errno(sock, err_to_errno(err));
|
---|
549 | return -1;
|
---|
550 | }
|
---|
551 |
|
---|
552 | sock_set_errno(sock, 0);
|
---|
553 | return 0;
|
---|
554 | }
|
---|
555 |
|
---|
556 | int
|
---|
557 | lwip_recvfrom(int s, void *mem, size_t len, int flags,
|
---|
558 | struct sockaddr *from, socklen_t *fromlen)
|
---|
559 | {
|
---|
560 | struct lwip_sock *sock;
|
---|
561 | void *buf = NULL;
|
---|
562 | struct pbuf *p;
|
---|
563 | u16_t buflen, copylen;
|
---|
564 | int off = 0;
|
---|
565 | ip_addr_t *addr;
|
---|
566 | u16_t port;
|
---|
567 | u8_t done = 0;
|
---|
568 | err_t err;
|
---|
569 |
|
---|
570 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
|
---|
571 | sock = get_socket(s);
|
---|
572 | if (!sock) {
|
---|
573 | return -1;
|
---|
574 | }
|
---|
575 |
|
---|
576 | do {
|
---|
577 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
|
---|
578 | /* Check if there is data left from the last recv operation. */
|
---|
579 | if (sock->lastdata) {
|
---|
580 | buf = sock->lastdata;
|
---|
581 | } else {
|
---|
582 | /* If this is non-blocking call, then check first */
|
---|
583 | if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
|
---|
584 | (sock->rcvevent <= 0)) {
|
---|
585 | if (off > 0) {
|
---|
586 | /* update receive window */
|
---|
587 | netconn_recved(sock->conn, (u32_t)off);
|
---|
588 | /* already received data, return that */
|
---|
589 | sock_set_errno(sock, 0);
|
---|
590 | return off;
|
---|
591 | }
|
---|
592 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
|
---|
593 | sock_set_errno(sock, EWOULDBLOCK);
|
---|
594 | return -1;
|
---|
595 | }
|
---|
596 |
|
---|
597 | /* No data was left from the previous operation, so we try to get
|
---|
598 | some from the network. */
|
---|
599 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
600 | err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
|
---|
601 | } else {
|
---|
602 | err = netconn_recv(sock->conn, (struct netbuf **)&buf);
|
---|
603 | }
|
---|
604 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
|
---|
605 | err, buf));
|
---|
606 |
|
---|
607 | if (err != ERR_OK) {
|
---|
608 | if (off > 0) {
|
---|
609 | /* update receive window */
|
---|
610 | netconn_recved(sock->conn, (u32_t)off);
|
---|
611 | /* already received data, return that */
|
---|
612 | sock_set_errno(sock, 0);
|
---|
613 | return off;
|
---|
614 | }
|
---|
615 | /* We should really do some error checking here. */
|
---|
616 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
|
---|
617 | s, lwip_strerr(err)));
|
---|
618 | sock_set_errno(sock, err_to_errno(err));
|
---|
619 | if (err == ERR_CLSD) {
|
---|
620 | return 0;
|
---|
621 | } else {
|
---|
622 | return -1;
|
---|
623 | }
|
---|
624 | }
|
---|
625 | LWIP_ASSERT("buf != NULL", buf != NULL);
|
---|
626 | sock->lastdata = buf;
|
---|
627 | }
|
---|
628 |
|
---|
629 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
630 | p = (struct pbuf *)buf;
|
---|
631 | } else {
|
---|
632 | p = ((struct netbuf *)buf)->p;
|
---|
633 | }
|
---|
634 | buflen = p->tot_len;
|
---|
635 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
|
---|
636 | buflen, len, off, sock->lastoffset));
|
---|
637 |
|
---|
638 | buflen -= sock->lastoffset;
|
---|
639 |
|
---|
640 | if (len > buflen) {
|
---|
641 | copylen = buflen;
|
---|
642 | } else {
|
---|
643 | copylen = (u16_t)len;
|
---|
644 | }
|
---|
645 |
|
---|
646 | /* copy the contents of the received buffer into
|
---|
647 | the supplied memory pointer mem */
|
---|
648 | pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
|
---|
649 |
|
---|
650 | off += copylen;
|
---|
651 |
|
---|
652 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
653 | LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
|
---|
654 | len -= copylen;
|
---|
655 | if ( (len <= 0) ||
|
---|
656 | (p->flags & PBUF_FLAG_PUSH) ||
|
---|
657 | (sock->rcvevent <= 0) ||
|
---|
658 | ((flags & MSG_PEEK)!=0)) {
|
---|
659 | done = 1;
|
---|
660 | }
|
---|
661 | } else {
|
---|
662 | done = 1;
|
---|
663 | }
|
---|
664 |
|
---|
665 | /* Check to see from where the data was.*/
|
---|
666 | if (done) {
|
---|
667 | ip_addr_t fromaddr;
|
---|
668 | if (from && fromlen) {
|
---|
669 | struct sockaddr_in sin;
|
---|
670 |
|
---|
671 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
672 | addr = &fromaddr;
|
---|
673 | netconn_getaddr(sock->conn, addr, &port, 0);
|
---|
674 | } else {
|
---|
675 | addr = netbuf_fromaddr((struct netbuf *)buf);
|
---|
676 | port = netbuf_fromport((struct netbuf *)buf);
|
---|
677 | }
|
---|
678 |
|
---|
679 | memset(&sin, 0, sizeof(sin));
|
---|
680 | sin.sin_len = sizeof(sin);
|
---|
681 | sin.sin_family = AF_INET;
|
---|
682 | sin.sin_port = htons(port);
|
---|
683 | inet_addr_from_ipaddr(&sin.sin_addr, addr);
|
---|
684 |
|
---|
685 | if (*fromlen > sizeof(sin)) {
|
---|
686 | *fromlen = sizeof(sin);
|
---|
687 | }
|
---|
688 |
|
---|
689 | MEMCPY(from, &sin, *fromlen);
|
---|
690 |
|
---|
691 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
---|
692 | ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
---|
693 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
|
---|
694 | } else {
|
---|
695 | #if SOCKETS_DEBUG
|
---|
696 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
697 | addr = &fromaddr;
|
---|
698 | netconn_getaddr(sock->conn, addr, &port, 0);
|
---|
699 | } else {
|
---|
700 | addr = netbuf_fromaddr((struct netbuf *)buf);
|
---|
701 | port = netbuf_fromport((struct netbuf *)buf);
|
---|
702 | }
|
---|
703 |
|
---|
704 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
---|
705 | ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
---|
706 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
|
---|
707 | #endif /* SOCKETS_DEBUG */
|
---|
708 | }
|
---|
709 | }
|
---|
710 |
|
---|
711 | /* If we don't peek the incoming message... */
|
---|
712 | if ((flags & MSG_PEEK) == 0) {
|
---|
713 | /* If this is a TCP socket, check if there is data left in the
|
---|
714 | buffer. If so, it should be saved in the sock structure for next
|
---|
715 | time around. */
|
---|
716 | if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
|
---|
717 | sock->lastdata = buf;
|
---|
718 | sock->lastoffset += copylen;
|
---|
719 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
|
---|
720 | } else {
|
---|
721 | sock->lastdata = NULL;
|
---|
722 | sock->lastoffset = 0;
|
---|
723 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
|
---|
724 | if (netconn_type(sock->conn) == NETCONN_TCP) {
|
---|
725 | pbuf_free((struct pbuf *)buf);
|
---|
726 | } else {
|
---|
727 | netbuf_delete((struct netbuf *)buf);
|
---|
728 | }
|
---|
729 | }
|
---|
730 | }
|
---|
731 | } while (!done);
|
---|
732 |
|
---|
733 | if (off > 0) {
|
---|
734 | /* update receive window */
|
---|
735 | netconn_recved(sock->conn, (u32_t)off);
|
---|
736 | }
|
---|
737 | sock_set_errno(sock, 0);
|
---|
738 | return off;
|
---|
739 | }
|
---|
740 |
|
---|
741 | int
|
---|
742 | lwip_read(int s, void *mem, size_t len)
|
---|
743 | {
|
---|
744 | return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
|
---|
745 | }
|
---|
746 |
|
---|
747 | int
|
---|
748 | lwip_recv(int s, void *mem, size_t len, int flags)
|
---|
749 | {
|
---|
750 | return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
|
---|
751 | }
|
---|
752 |
|
---|
753 | int
|
---|
754 | lwip_send(int s, const void *data, size_t size, int flags)
|
---|
755 | {
|
---|
756 | struct lwip_sock *sock;
|
---|
757 | err_t err;
|
---|
758 | u8_t write_flags;
|
---|
759 | size_t written;
|
---|
760 |
|
---|
761 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
|
---|
762 | s, data, size, flags));
|
---|
763 |
|
---|
764 | sock = get_socket(s);
|
---|
765 | if (!sock) {
|
---|
766 | return -1;
|
---|
767 | }
|
---|
768 |
|
---|
769 | if (sock->conn->type != NETCONN_TCP) {
|
---|
770 | #if (LWIP_UDP || LWIP_RAW)
|
---|
771 | return lwip_sendto(s, data, size, flags, NULL, 0);
|
---|
772 | #else /* (LWIP_UDP || LWIP_RAW) */
|
---|
773 | sock_set_errno(sock, err_to_errno(ERR_ARG));
|
---|
774 | return -1;
|
---|
775 | #endif /* (LWIP_UDP || LWIP_RAW) */
|
---|
776 | }
|
---|
777 |
|
---|
778 | write_flags = NETCONN_COPY |
|
---|
779 | ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
|
---|
780 | ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
|
---|
781 | written = 0;
|
---|
782 | err = netconn_write_partly(sock->conn, data, size, write_flags, &written);
|
---|
783 |
|
---|
784 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d written=%"SZT_F"\n", s, err, written));
|
---|
785 | sock_set_errno(sock, err_to_errno(err));
|
---|
786 | return (err == ERR_OK ? (int)written : -1);
|
---|
787 | }
|
---|
788 |
|
---|
789 | int
|
---|
790 | lwip_sendto(int s, const void *data, size_t size, int flags,
|
---|
791 | const struct sockaddr *to, socklen_t tolen)
|
---|
792 | {
|
---|
793 | struct lwip_sock *sock;
|
---|
794 | err_t err;
|
---|
795 | u16_t short_size;
|
---|
796 | const struct sockaddr_in *to_in;
|
---|
797 | u16_t remote_port;
|
---|
798 | #if !LWIP_TCPIP_CORE_LOCKING
|
---|
799 | struct netbuf buf;
|
---|
800 | #endif
|
---|
801 |
|
---|
802 | sock = get_socket(s);
|
---|
803 | if (!sock) {
|
---|
804 | return -1;
|
---|
805 | }
|
---|
806 |
|
---|
807 | if (sock->conn->type == NETCONN_TCP) {
|
---|
808 | #if LWIP_TCP
|
---|
809 | return lwip_send(s, data, size, flags);
|
---|
810 | #else /* LWIP_TCP */
|
---|
811 | LWIP_UNUSED_ARG(flags);
|
---|
812 | sock_set_errno(sock, err_to_errno(ERR_ARG));
|
---|
813 | return -1;
|
---|
814 | #endif /* LWIP_TCP */
|
---|
815 | }
|
---|
816 |
|
---|
817 | /* @todo: split into multiple sendto's? */
|
---|
818 | LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
|
---|
819 | short_size = (u16_t)size;
|
---|
820 | LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
|
---|
821 | ((tolen == sizeof(struct sockaddr_in)) &&
|
---|
822 | ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
|
---|
823 | sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
|
---|
824 | to_in = (const struct sockaddr_in *)(void*)to;
|
---|
825 |
|
---|
826 | #if LWIP_TCPIP_CORE_LOCKING
|
---|
827 | /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
|
---|
828 | {
|
---|
829 | struct pbuf* p;
|
---|
830 | ip_addr_t *remote_addr;
|
---|
831 |
|
---|
832 | #if LWIP_NETIF_TX_SINGLE_PBUF
|
---|
833 | p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
|
---|
834 | if (p != NULL) {
|
---|
835 | #if LWIP_CHECKSUM_ON_COPY
|
---|
836 | u16_t chksum = 0;
|
---|
837 | if (sock->conn->type != NETCONN_RAW) {
|
---|
838 | chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
|
---|
839 | } else
|
---|
840 | #endif /* LWIP_CHECKSUM_ON_COPY */
|
---|
841 | MEMCPY(p->payload, data, size);
|
---|
842 | #else /* LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
843 | p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
|
---|
844 | if (p != NULL) {
|
---|
845 | p->payload = (void*)data;
|
---|
846 | #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
847 |
|
---|
848 | if (to_in != NULL) {
|
---|
849 | inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
|
---|
850 | remote_port = ntohs(to_in->sin_port);
|
---|
851 | } else {
|
---|
852 | remote_addr = &sock->conn->pcb.ip->remote_ip;
|
---|
853 | #if LWIP_UDP
|
---|
854 | if (NETCONNTYPE_GROUP(sock->conn->type) == NETCONN_UDP) {
|
---|
855 | remote_port = sock->conn->pcb.udp->remote_port;
|
---|
856 | } else
|
---|
857 | #endif /* LWIP_UDP */
|
---|
858 | {
|
---|
859 | remote_port = 0;
|
---|
860 | }
|
---|
861 | }
|
---|
862 |
|
---|
863 | LOCK_TCPIP_CORE();
|
---|
864 | if (netconn_type(sock->conn) == NETCONN_RAW) {
|
---|
865 | #if LWIP_RAW
|
---|
866 | err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
|
---|
867 | #else /* LWIP_RAW */
|
---|
868 | err = ERR_ARG;
|
---|
869 | #endif /* LWIP_RAW */
|
---|
870 | }
|
---|
871 | #if LWIP_UDP && LWIP_RAW
|
---|
872 | else
|
---|
873 | #endif /* LWIP_UDP && LWIP_RAW */
|
---|
874 | {
|
---|
875 | #if LWIP_UDP
|
---|
876 | #if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
|
---|
877 | err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
|
---|
878 | remote_addr, remote_port, 1, chksum);
|
---|
879 | #else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
880 | err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
|
---|
881 | remote_addr, remote_port);
|
---|
882 | #endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
883 | #else /* LWIP_UDP */
|
---|
884 | err = ERR_ARG;
|
---|
885 | #endif /* LWIP_UDP */
|
---|
886 | }
|
---|
887 | UNLOCK_TCPIP_CORE();
|
---|
888 |
|
---|
889 | pbuf_free(p);
|
---|
890 | } else {
|
---|
891 | err = ERR_MEM;
|
---|
892 | }
|
---|
893 | }
|
---|
894 | #else /* LWIP_TCPIP_CORE_LOCKING */
|
---|
895 | /* initialize a buffer */
|
---|
896 | buf.p = buf.ptr = NULL;
|
---|
897 | #if LWIP_CHECKSUM_ON_COPY
|
---|
898 | buf.flags = 0;
|
---|
899 | #endif /* LWIP_CHECKSUM_ON_COPY */
|
---|
900 | if (to) {
|
---|
901 | inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
|
---|
902 | remote_port = ntohs(to_in->sin_port);
|
---|
903 | netbuf_fromport(&buf) = remote_port;
|
---|
904 | } else {
|
---|
905 | remote_port = 0;
|
---|
906 | ip_addr_set_any(&buf.addr);
|
---|
907 | netbuf_fromport(&buf) = 0;
|
---|
908 | }
|
---|
909 |
|
---|
910 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
|
---|
911 | s, data, short_size, flags));
|
---|
912 | ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
|
---|
913 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
|
---|
914 |
|
---|
915 | /* make the buffer point to the data that should be sent */
|
---|
916 | #if LWIP_NETIF_TX_SINGLE_PBUF
|
---|
917 | /* Allocate a new netbuf and copy the data into it. */
|
---|
918 | if (netbuf_alloc(&buf, short_size) == NULL) {
|
---|
919 | err = ERR_MEM;
|
---|
920 | } else {
|
---|
921 | #if LWIP_CHECKSUM_ON_COPY
|
---|
922 | if (sock->conn->type != NETCONN_RAW) {
|
---|
923 | u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
|
---|
924 | netbuf_set_chksum(&buf, chksum);
|
---|
925 | err = ERR_OK;
|
---|
926 | } else
|
---|
927 | #endif /* LWIP_CHECKSUM_ON_COPY */
|
---|
928 | {
|
---|
929 | err = netbuf_take(&buf, data, short_size);
|
---|
930 | }
|
---|
931 | }
|
---|
932 | #else /* LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
933 | err = netbuf_ref(&buf, data, short_size);
|
---|
934 | #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
935 | if (err == ERR_OK) {
|
---|
936 | /* send the data */
|
---|
937 | err = netconn_send(sock->conn, &buf);
|
---|
938 | }
|
---|
939 |
|
---|
940 | /* deallocated the buffer */
|
---|
941 | netbuf_free(&buf);
|
---|
942 | #endif /* LWIP_TCPIP_CORE_LOCKING */
|
---|
943 | sock_set_errno(sock, err_to_errno(err));
|
---|
944 | return (err == ERR_OK ? short_size : -1);
|
---|
945 | }
|
---|
946 |
|
---|
947 | int
|
---|
948 | lwip_socket(int domain, int type, int protocol)
|
---|
949 | {
|
---|
950 | struct netconn *conn;
|
---|
951 | int i;
|
---|
952 |
|
---|
953 | LWIP_UNUSED_ARG(domain);
|
---|
954 |
|
---|
955 | /* create a netconn */
|
---|
956 | switch (type) {
|
---|
957 | case SOCK_RAW:
|
---|
958 | conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
|
---|
959 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
|
---|
960 | domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
---|
961 | break;
|
---|
962 | case SOCK_DGRAM:
|
---|
963 | conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
|
---|
964 | NETCONN_UDPLITE : NETCONN_UDP, event_callback);
|
---|
965 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
|
---|
966 | domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
---|
967 | break;
|
---|
968 | case SOCK_STREAM:
|
---|
969 | conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
|
---|
970 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
|
---|
971 | domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
---|
972 | if (conn != NULL) {
|
---|
973 | /* Prevent automatic window updates, we do this on our own! */
|
---|
974 | netconn_set_noautorecved(conn, 1);
|
---|
975 | }
|
---|
976 | break;
|
---|
977 | default:
|
---|
978 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
|
---|
979 | domain, type, protocol));
|
---|
980 | set_errno(EINVAL);
|
---|
981 | return -1;
|
---|
982 | }
|
---|
983 |
|
---|
984 | if (!conn) {
|
---|
985 | LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
|
---|
986 | set_errno(ENOBUFS);
|
---|
987 | return -1;
|
---|
988 | }
|
---|
989 |
|
---|
990 | i = alloc_socket(conn, 0);
|
---|
991 |
|
---|
992 | if (i == -1) {
|
---|
993 | netconn_delete(conn);
|
---|
994 | set_errno(ENFILE);
|
---|
995 | return -1;
|
---|
996 | }
|
---|
997 | conn->socket = i;
|
---|
998 | LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
|
---|
999 | set_errno(0);
|
---|
1000 | return i;
|
---|
1001 | }
|
---|
1002 |
|
---|
1003 | int
|
---|
1004 | lwip_write(int s, const void *data, size_t size)
|
---|
1005 | {
|
---|
1006 | return lwip_send(s, data, size, 0);
|
---|
1007 | }
|
---|
1008 |
|
---|
1009 | /**
|
---|
1010 | * Go through the readset and writeset lists and see which socket of the sockets
|
---|
1011 | * set in the sets has events. On return, readset, writeset and exceptset have
|
---|
1012 | * the sockets enabled that had events.
|
---|
1013 | *
|
---|
1014 | * exceptset is not used for now!!!
|
---|
1015 | *
|
---|
1016 | * @param maxfdp1 the highest socket index in the sets
|
---|
1017 | * @param readset_in: set of sockets to check for read events
|
---|
1018 | * @param writeset_in: set of sockets to check for write events
|
---|
1019 | * @param exceptset_in: set of sockets to check for error events
|
---|
1020 | * @param readset_out: set of sockets that had read events
|
---|
1021 | * @param writeset_out: set of sockets that had write events
|
---|
1022 | * @param exceptset_out: set os sockets that had error events
|
---|
1023 | * @return number of sockets that had events (read/write/exception) (>= 0)
|
---|
1024 | */
|
---|
1025 | static int
|
---|
1026 | lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
|
---|
1027 | fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
|
---|
1028 | {
|
---|
1029 | int i, nready = 0;
|
---|
1030 | fd_set lreadset, lwriteset, lexceptset;
|
---|
1031 | struct lwip_sock *sock;
|
---|
1032 | SYS_ARCH_DECL_PROTECT(lev);
|
---|
1033 |
|
---|
1034 | FD_ZERO(&lreadset);
|
---|
1035 | FD_ZERO(&lwriteset);
|
---|
1036 | FD_ZERO(&lexceptset);
|
---|
1037 |
|
---|
1038 | /* Go through each socket in each list to count number of sockets which
|
---|
1039 | currently match */
|
---|
1040 | for(i = 0; i < maxfdp1; i++) {
|
---|
1041 | void* lastdata = NULL;
|
---|
1042 | s16_t rcvevent = 0;
|
---|
1043 | u16_t sendevent = 0;
|
---|
1044 | u16_t errevent = 0;
|
---|
1045 | /* First get the socket's status (protected)... */
|
---|
1046 | SYS_ARCH_PROTECT(lev);
|
---|
1047 | sock = tryget_socket(i);
|
---|
1048 | if (sock != NULL) {
|
---|
1049 | lastdata = sock->lastdata;
|
---|
1050 | rcvevent = sock->rcvevent;
|
---|
1051 | sendevent = sock->sendevent;
|
---|
1052 | errevent = sock->errevent;
|
---|
1053 | }
|
---|
1054 | SYS_ARCH_UNPROTECT(lev);
|
---|
1055 | /* ... then examine it: */
|
---|
1056 | /* See if netconn of this socket is ready for read */
|
---|
1057 | if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
|
---|
1058 | FD_SET(i, &lreadset);
|
---|
1059 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
|
---|
1060 | nready++;
|
---|
1061 | }
|
---|
1062 | /* See if netconn of this socket is ready for write */
|
---|
1063 | if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
|
---|
1064 | FD_SET(i, &lwriteset);
|
---|
1065 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
|
---|
1066 | nready++;
|
---|
1067 | }
|
---|
1068 | /* See if netconn of this socket had an error */
|
---|
1069 | if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
|
---|
1070 | FD_SET(i, &lexceptset);
|
---|
1071 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
|
---|
1072 | nready++;
|
---|
1073 | }
|
---|
1074 | }
|
---|
1075 | /* copy local sets to the ones provided as arguments */
|
---|
1076 | *readset_out = lreadset;
|
---|
1077 | *writeset_out = lwriteset;
|
---|
1078 | *exceptset_out = lexceptset;
|
---|
1079 |
|
---|
1080 | LWIP_ASSERT("nready >= 0", nready >= 0);
|
---|
1081 | return nready;
|
---|
1082 | }
|
---|
1083 |
|
---|
1084 | /**
|
---|
1085 | * Processing exceptset is not yet implemented.
|
---|
1086 | */
|
---|
1087 | int
|
---|
1088 | lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
|
---|
1089 | struct timeval *timeout)
|
---|
1090 | {
|
---|
1091 | u32_t waitres = 0;
|
---|
1092 | int nready;
|
---|
1093 | fd_set lreadset, lwriteset, lexceptset;
|
---|
1094 | u32_t msectimeout;
|
---|
1095 | struct lwip_select_cb select_cb;
|
---|
1096 | err_t err;
|
---|
1097 | int i;
|
---|
1098 | SYS_ARCH_DECL_PROTECT(lev);
|
---|
1099 |
|
---|
1100 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
|
---|
1101 | maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
|
---|
1102 | timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
|
---|
1103 | timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
|
---|
1104 |
|
---|
1105 | /* Go through each socket in each list to count number of sockets which
|
---|
1106 | currently match */
|
---|
1107 | nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
---|
1108 |
|
---|
1109 | /* If we don't have any current events, then suspend if we are supposed to */
|
---|
1110 | if (!nready) {
|
---|
1111 | if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
|
---|
1112 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
|
---|
1113 | /* This is OK as the local fdsets are empty and nready is zero,
|
---|
1114 | or we would have returned earlier. */
|
---|
1115 | goto return_copy_fdsets;
|
---|
1116 | }
|
---|
1117 |
|
---|
1118 | /* None ready: add our semaphore to list:
|
---|
1119 | We don't actually need any dynamic memory. Our entry on the
|
---|
1120 | list is only valid while we are in this function, so it's ok
|
---|
1121 | to use local variables. */
|
---|
1122 |
|
---|
1123 | select_cb.next = NULL;
|
---|
1124 | select_cb.prev = NULL;
|
---|
1125 | select_cb.readset = readset;
|
---|
1126 | select_cb.writeset = writeset;
|
---|
1127 | select_cb.exceptset = exceptset;
|
---|
1128 | select_cb.sem_signalled = 0;
|
---|
1129 | err = sys_sem_new(&select_cb.sem, 0);
|
---|
1130 | if (err != ERR_OK) {
|
---|
1131 | /* failed to create semaphore */
|
---|
1132 | set_errno(ENOMEM);
|
---|
1133 | return -1;
|
---|
1134 | }
|
---|
1135 |
|
---|
1136 | /* Protect the select_cb_list */
|
---|
1137 | SYS_ARCH_PROTECT(lev);
|
---|
1138 |
|
---|
1139 | /* Put this select_cb on top of list */
|
---|
1140 | select_cb.next = select_cb_list;
|
---|
1141 | if (select_cb_list != NULL) {
|
---|
1142 | select_cb_list->prev = &select_cb;
|
---|
1143 | }
|
---|
1144 | select_cb_list = &select_cb;
|
---|
1145 | /* Increasing this counter tells even_callback that the list has changed. */
|
---|
1146 | select_cb_ctr++;
|
---|
1147 |
|
---|
1148 | /* Now we can safely unprotect */
|
---|
1149 | SYS_ARCH_UNPROTECT(lev);
|
---|
1150 |
|
---|
1151 | /* Increase select_waiting for each socket we are interested in */
|
---|
1152 | for(i = 0; i < maxfdp1; i++) {
|
---|
1153 | if ((readset && FD_ISSET(i, readset)) ||
|
---|
1154 | (writeset && FD_ISSET(i, writeset)) ||
|
---|
1155 | (exceptset && FD_ISSET(i, exceptset))) {
|
---|
1156 | struct lwip_sock *sock = tryget_socket(i);
|
---|
1157 | LWIP_ASSERT("sock != NULL", sock != NULL);
|
---|
1158 | SYS_ARCH_PROTECT(lev);
|
---|
1159 | sock->select_waiting++;
|
---|
1160 | LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
|
---|
1161 | SYS_ARCH_UNPROTECT(lev);
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 |
|
---|
1165 | /* Call lwip_selscan again: there could have been events between
|
---|
1166 | the last scan (whithout us on the list) and putting us on the list! */
|
---|
1167 | nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
---|
1168 | if (!nready) {
|
---|
1169 | /* Still none ready, just wait to be woken */
|
---|
1170 | if (timeout == 0) {
|
---|
1171 | /* Wait forever */
|
---|
1172 | msectimeout = 0;
|
---|
1173 | } else {
|
---|
1174 | msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
|
---|
1175 | if (msectimeout == 0) {
|
---|
1176 | /* Wait 1ms at least (0 means wait forever) */
|
---|
1177 | msectimeout = 1;
|
---|
1178 | }
|
---|
1179 | }
|
---|
1180 |
|
---|
1181 | waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
|
---|
1182 | }
|
---|
1183 | /* Increase select_waiting for each socket we are interested in */
|
---|
1184 | for(i = 0; i < maxfdp1; i++) {
|
---|
1185 | if ((readset && FD_ISSET(i, readset)) ||
|
---|
1186 | (writeset && FD_ISSET(i, writeset)) ||
|
---|
1187 | (exceptset && FD_ISSET(i, exceptset))) {
|
---|
1188 | struct lwip_sock *sock = tryget_socket(i);
|
---|
1189 | LWIP_ASSERT("sock != NULL", sock != NULL);
|
---|
1190 | SYS_ARCH_PROTECT(lev);
|
---|
1191 | sock->select_waiting--;
|
---|
1192 | LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
|
---|
1193 | SYS_ARCH_UNPROTECT(lev);
|
---|
1194 | }
|
---|
1195 | }
|
---|
1196 | /* Take us off the list */
|
---|
1197 | SYS_ARCH_PROTECT(lev);
|
---|
1198 | if (select_cb.next != NULL) {
|
---|
1199 | select_cb.next->prev = select_cb.prev;
|
---|
1200 | }
|
---|
1201 | if (select_cb_list == &select_cb) {
|
---|
1202 | LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
|
---|
1203 | select_cb_list = select_cb.next;
|
---|
1204 | } else {
|
---|
1205 | LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
|
---|
1206 | select_cb.prev->next = select_cb.next;
|
---|
1207 | }
|
---|
1208 | /* Increasing this counter tells even_callback that the list has changed. */
|
---|
1209 | select_cb_ctr++;
|
---|
1210 | SYS_ARCH_UNPROTECT(lev);
|
---|
1211 |
|
---|
1212 | sys_sem_free(&select_cb.sem);
|
---|
1213 | if (waitres == SYS_ARCH_TIMEOUT) {
|
---|
1214 | /* Timeout */
|
---|
1215 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
|
---|
1216 | /* This is OK as the local fdsets are empty and nready is zero,
|
---|
1217 | or we would have returned earlier. */
|
---|
1218 | goto return_copy_fdsets;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | /* See what's set */
|
---|
1222 | nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
---|
1223 | }
|
---|
1224 |
|
---|
1225 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
|
---|
1226 | return_copy_fdsets:
|
---|
1227 | set_errno(0);
|
---|
1228 | if (readset) {
|
---|
1229 | *readset = lreadset;
|
---|
1230 | }
|
---|
1231 | if (writeset) {
|
---|
1232 | *writeset = lwriteset;
|
---|
1233 | }
|
---|
1234 | if (exceptset) {
|
---|
1235 | *exceptset = lexceptset;
|
---|
1236 | }
|
---|
1237 |
|
---|
1238 |
|
---|
1239 | return nready;
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 | /**
|
---|
1243 | * Callback registered in the netconn layer for each socket-netconn.
|
---|
1244 | * Processes recvevent (data available) and wakes up tasks waiting for select.
|
---|
1245 | */
|
---|
1246 | static void
|
---|
1247 | event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
|
---|
1248 | {
|
---|
1249 | int s;
|
---|
1250 | struct lwip_sock *sock;
|
---|
1251 | struct lwip_select_cb *scb;
|
---|
1252 | int last_select_cb_ctr;
|
---|
1253 | SYS_ARCH_DECL_PROTECT(lev);
|
---|
1254 |
|
---|
1255 | LWIP_UNUSED_ARG(len);
|
---|
1256 |
|
---|
1257 | /* Get socket */
|
---|
1258 | if (conn) {
|
---|
1259 | s = conn->socket;
|
---|
1260 | if (s < 0) {
|
---|
1261 | /* Data comes in right away after an accept, even though
|
---|
1262 | * the server task might not have created a new socket yet.
|
---|
1263 | * Just count down (or up) if that's the case and we
|
---|
1264 | * will use the data later. Note that only receive events
|
---|
1265 | * can happen before the new socket is set up. */
|
---|
1266 | SYS_ARCH_PROTECT(lev);
|
---|
1267 | if (conn->socket < 0) {
|
---|
1268 | if (evt == NETCONN_EVT_RCVPLUS) {
|
---|
1269 | conn->socket--;
|
---|
1270 | }
|
---|
1271 | SYS_ARCH_UNPROTECT(lev);
|
---|
1272 | return;
|
---|
1273 | }
|
---|
1274 | s = conn->socket;
|
---|
1275 | SYS_ARCH_UNPROTECT(lev);
|
---|
1276 | }
|
---|
1277 |
|
---|
1278 | sock = get_socket(s);
|
---|
1279 | if (!sock) {
|
---|
1280 | return;
|
---|
1281 | }
|
---|
1282 | } else {
|
---|
1283 | return;
|
---|
1284 | }
|
---|
1285 |
|
---|
1286 | SYS_ARCH_PROTECT(lev);
|
---|
1287 | /* Set event as required */
|
---|
1288 | switch (evt) {
|
---|
1289 | case NETCONN_EVT_RCVPLUS:
|
---|
1290 | sock->rcvevent++;
|
---|
1291 | break;
|
---|
1292 | case NETCONN_EVT_RCVMINUS:
|
---|
1293 | sock->rcvevent--;
|
---|
1294 | break;
|
---|
1295 | case NETCONN_EVT_SENDPLUS:
|
---|
1296 | sock->sendevent = 1;
|
---|
1297 | break;
|
---|
1298 | case NETCONN_EVT_SENDMINUS:
|
---|
1299 | sock->sendevent = 0;
|
---|
1300 | break;
|
---|
1301 | case NETCONN_EVT_ERROR:
|
---|
1302 | sock->errevent = 1;
|
---|
1303 | break;
|
---|
1304 | default:
|
---|
1305 | LWIP_ASSERT("unknown event", 0);
|
---|
1306 | break;
|
---|
1307 | }
|
---|
1308 |
|
---|
1309 | if (sock->select_waiting == 0) {
|
---|
1310 | /* noone is waiting for this socket, no need to check select_cb_list */
|
---|
1311 | SYS_ARCH_UNPROTECT(lev);
|
---|
1312 | return;
|
---|
1313 | }
|
---|
1314 |
|
---|
1315 | /* Now decide if anyone is waiting for this socket */
|
---|
1316 | /* NOTE: This code goes through the select_cb_list list multiple times
|
---|
1317 | ONLY IF a select was actually waiting. We go through the list the number
|
---|
1318 | of waiting select calls + 1. This list is expected to be small. */
|
---|
1319 |
|
---|
1320 | /* At this point, SYS_ARCH is still protected! */
|
---|
1321 | again:
|
---|
1322 | for (scb = select_cb_list; scb != NULL; scb = scb->next) {
|
---|
1323 | if (scb->sem_signalled == 0) {
|
---|
1324 | /* semaphore not signalled yet */
|
---|
1325 | int do_signal = 0;
|
---|
1326 | /* Test this select call for our socket */
|
---|
1327 | if (sock->rcvevent > 0) {
|
---|
1328 | if (scb->readset && FD_ISSET(s, scb->readset)) {
|
---|
1329 | do_signal = 1;
|
---|
1330 | }
|
---|
1331 | }
|
---|
1332 | if (sock->sendevent != 0) {
|
---|
1333 | if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
|
---|
1334 | do_signal = 1;
|
---|
1335 | }
|
---|
1336 | }
|
---|
1337 | if (sock->errevent != 0) {
|
---|
1338 | if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
|
---|
1339 | do_signal = 1;
|
---|
1340 | }
|
---|
1341 | }
|
---|
1342 | if (do_signal) {
|
---|
1343 | scb->sem_signalled = 1;
|
---|
1344 | /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
|
---|
1345 | lead to the select thread taking itself off the list, invalidagin the semaphore. */
|
---|
1346 | sys_sem_signal(&scb->sem);
|
---|
1347 | }
|
---|
1348 | }
|
---|
1349 | /* unlock interrupts with each step */
|
---|
1350 | last_select_cb_ctr = select_cb_ctr;
|
---|
1351 | SYS_ARCH_UNPROTECT(lev);
|
---|
1352 | /* this makes sure interrupt protection time is short */
|
---|
1353 | SYS_ARCH_PROTECT(lev);
|
---|
1354 | if (last_select_cb_ctr != select_cb_ctr) {
|
---|
1355 | /* someone has changed select_cb_list, restart at the beginning */
|
---|
1356 | goto again;
|
---|
1357 | }
|
---|
1358 | }
|
---|
1359 | SYS_ARCH_UNPROTECT(lev);
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | /**
|
---|
1363 | * Unimplemented: Close one end of a full-duplex connection.
|
---|
1364 | * Currently, the full connection is closed.
|
---|
1365 | */
|
---|
1366 | int
|
---|
1367 | lwip_shutdown(int s, int how)
|
---|
1368 | {
|
---|
1369 | struct lwip_sock *sock;
|
---|
1370 | err_t err;
|
---|
1371 | u8_t shut_rx = 0, shut_tx = 0;
|
---|
1372 |
|
---|
1373 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
|
---|
1374 |
|
---|
1375 | sock = get_socket(s);
|
---|
1376 | if (!sock) {
|
---|
1377 | return -1;
|
---|
1378 | }
|
---|
1379 |
|
---|
1380 | if (sock->conn != NULL) {
|
---|
1381 | if (netconn_type(sock->conn) != NETCONN_TCP) {
|
---|
1382 | sock_set_errno(sock, EOPNOTSUPP);
|
---|
1383 | return EOPNOTSUPP;
|
---|
1384 | }
|
---|
1385 | } else {
|
---|
1386 | sock_set_errno(sock, ENOTCONN);
|
---|
1387 | return ENOTCONN;
|
---|
1388 | }
|
---|
1389 |
|
---|
1390 | if (how == SHUT_RD) {
|
---|
1391 | shut_rx = 1;
|
---|
1392 | } else if (how == SHUT_WR) {
|
---|
1393 | shut_tx = 1;
|
---|
1394 | } else if(how == SHUT_RDWR) {
|
---|
1395 | shut_rx = 1;
|
---|
1396 | shut_tx = 1;
|
---|
1397 | } else {
|
---|
1398 | sock_set_errno(sock, EINVAL);
|
---|
1399 | return EINVAL;
|
---|
1400 | }
|
---|
1401 | err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
|
---|
1402 |
|
---|
1403 | sock_set_errno(sock, err_to_errno(err));
|
---|
1404 | return (err == ERR_OK ? 0 : -1);
|
---|
1405 | }
|
---|
1406 |
|
---|
1407 | static int
|
---|
1408 | lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
|
---|
1409 | {
|
---|
1410 | struct lwip_sock *sock;
|
---|
1411 | struct sockaddr_in sin;
|
---|
1412 | ip_addr_t naddr;
|
---|
1413 |
|
---|
1414 | sock = get_socket(s);
|
---|
1415 | if (!sock) {
|
---|
1416 | return -1;
|
---|
1417 | }
|
---|
1418 |
|
---|
1419 | memset(&sin, 0, sizeof(sin));
|
---|
1420 | sin.sin_len = sizeof(sin);
|
---|
1421 | sin.sin_family = AF_INET;
|
---|
1422 |
|
---|
1423 | /* get the IP address and port */
|
---|
1424 | netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
|
---|
1425 |
|
---|
1426 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
|
---|
1427 | ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
|
---|
1428 | LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
|
---|
1429 |
|
---|
1430 | sin.sin_port = htons(sin.sin_port);
|
---|
1431 | inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
|
---|
1432 |
|
---|
1433 | if (*namelen > sizeof(sin)) {
|
---|
1434 | *namelen = sizeof(sin);
|
---|
1435 | }
|
---|
1436 |
|
---|
1437 | MEMCPY(name, &sin, *namelen);
|
---|
1438 | sock_set_errno(sock, 0);
|
---|
1439 | return 0;
|
---|
1440 | }
|
---|
1441 |
|
---|
1442 | int
|
---|
1443 | lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
|
---|
1444 | {
|
---|
1445 | return lwip_getaddrname(s, name, namelen, 0);
|
---|
1446 | }
|
---|
1447 |
|
---|
1448 | int
|
---|
1449 | lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
|
---|
1450 | {
|
---|
1451 | return lwip_getaddrname(s, name, namelen, 1);
|
---|
1452 | }
|
---|
1453 |
|
---|
1454 | int
|
---|
1455 | lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
|
---|
1456 | {
|
---|
1457 | err_t err = ERR_OK;
|
---|
1458 | struct lwip_sock *sock = get_socket(s);
|
---|
1459 | struct lwip_setgetsockopt_data data;
|
---|
1460 |
|
---|
1461 | if (!sock) {
|
---|
1462 | return -1;
|
---|
1463 | }
|
---|
1464 |
|
---|
1465 | if ((NULL == optval) || (NULL == optlen)) {
|
---|
1466 | sock_set_errno(sock, EFAULT);
|
---|
1467 | return -1;
|
---|
1468 | }
|
---|
1469 |
|
---|
1470 | /* Do length and type checks for the various options first, to keep it readable. */
|
---|
1471 | switch (level) {
|
---|
1472 |
|
---|
1473 | /* Level: SOL_SOCKET */
|
---|
1474 | case SOL_SOCKET:
|
---|
1475 | switch (optname) {
|
---|
1476 |
|
---|
1477 | case SO_ACCEPTCONN:
|
---|
1478 | case SO_BROADCAST:
|
---|
1479 | /* UNIMPL case SO_DEBUG: */
|
---|
1480 | /* UNIMPL case SO_DONTROUTE: */
|
---|
1481 | case SO_ERROR:
|
---|
1482 | case SO_KEEPALIVE:
|
---|
1483 | /* UNIMPL case SO_CONTIMEO: */
|
---|
1484 | #if LWIP_SO_SNDTIMEO
|
---|
1485 | case SO_SNDTIMEO:
|
---|
1486 | #endif /* LWIP_SO_SNDTIMEO */
|
---|
1487 | #if LWIP_SO_RCVTIMEO
|
---|
1488 | case SO_RCVTIMEO:
|
---|
1489 | #endif /* LWIP_SO_RCVTIMEO */
|
---|
1490 | #if LWIP_SO_RCVBUF
|
---|
1491 | case SO_RCVBUF:
|
---|
1492 | #endif /* LWIP_SO_RCVBUF */
|
---|
1493 | /* UNIMPL case SO_OOBINLINE: */
|
---|
1494 | /* UNIMPL case SO_SNDBUF: */
|
---|
1495 | /* UNIMPL case SO_RCVLOWAT: */
|
---|
1496 | /* UNIMPL case SO_SNDLOWAT: */
|
---|
1497 | #if SO_REUSE
|
---|
1498 | case SO_REUSEADDR:
|
---|
1499 | case SO_REUSEPORT:
|
---|
1500 | #endif /* SO_REUSE */
|
---|
1501 | case SO_TYPE:
|
---|
1502 | /* UNIMPL case SO_USELOOPBACK: */
|
---|
1503 | if (*optlen < sizeof(int)) {
|
---|
1504 | err = EINVAL;
|
---|
1505 | }
|
---|
1506 | break;
|
---|
1507 |
|
---|
1508 | case SO_NO_CHECK:
|
---|
1509 | if (*optlen < sizeof(int)) {
|
---|
1510 | err = EINVAL;
|
---|
1511 | }
|
---|
1512 | #if LWIP_UDP
|
---|
1513 | if ((sock->conn->type != NETCONN_UDP) ||
|
---|
1514 | ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
|
---|
1515 | /* this flag is only available for UDP, not for UDP lite */
|
---|
1516 | err = EAFNOSUPPORT;
|
---|
1517 | }
|
---|
1518 | #endif /* LWIP_UDP */
|
---|
1519 | break;
|
---|
1520 |
|
---|
1521 | default:
|
---|
1522 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
|
---|
1523 | s, optname));
|
---|
1524 | err = ENOPROTOOPT;
|
---|
1525 | } /* switch (optname) */
|
---|
1526 | break;
|
---|
1527 |
|
---|
1528 | /* Level: IPPROTO_IP */
|
---|
1529 | case IPPROTO_IP:
|
---|
1530 | switch (optname) {
|
---|
1531 | /* UNIMPL case IP_HDRINCL: */
|
---|
1532 | /* UNIMPL case IP_RCVDSTADDR: */
|
---|
1533 | /* UNIMPL case IP_RCVIF: */
|
---|
1534 | case IP_TTL:
|
---|
1535 | case IP_TOS:
|
---|
1536 | if (*optlen < sizeof(int)) {
|
---|
1537 | err = EINVAL;
|
---|
1538 | }
|
---|
1539 | break;
|
---|
1540 | #if LWIP_IGMP
|
---|
1541 | case IP_MULTICAST_TTL:
|
---|
1542 | if (*optlen < sizeof(u8_t)) {
|
---|
1543 | err = EINVAL;
|
---|
1544 | }
|
---|
1545 | break;
|
---|
1546 | case IP_MULTICAST_IF:
|
---|
1547 | if (*optlen < sizeof(struct in_addr)) {
|
---|
1548 | err = EINVAL;
|
---|
1549 | }
|
---|
1550 | break;
|
---|
1551 | case IP_MULTICAST_LOOP:
|
---|
1552 | if (*optlen < sizeof(u8_t)) {
|
---|
1553 | err = EINVAL;
|
---|
1554 | }
|
---|
1555 | if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
---|
1556 | err = EAFNOSUPPORT;
|
---|
1557 | }
|
---|
1558 | break;
|
---|
1559 | #endif /* LWIP_IGMP */
|
---|
1560 |
|
---|
1561 | default:
|
---|
1562 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
|
---|
1563 | s, optname));
|
---|
1564 | err = ENOPROTOOPT;
|
---|
1565 | } /* switch (optname) */
|
---|
1566 | break;
|
---|
1567 |
|
---|
1568 | #if LWIP_TCP
|
---|
1569 | /* Level: IPPROTO_TCP */
|
---|
1570 | case IPPROTO_TCP:
|
---|
1571 | if (*optlen < sizeof(int)) {
|
---|
1572 | err = EINVAL;
|
---|
1573 | break;
|
---|
1574 | }
|
---|
1575 |
|
---|
1576 | /* If this is no TCP socket, ignore any options. */
|
---|
1577 | if (sock->conn->type != NETCONN_TCP)
|
---|
1578 | return 0;
|
---|
1579 |
|
---|
1580 | switch (optname) {
|
---|
1581 | case TCP_NODELAY:
|
---|
1582 | case TCP_KEEPALIVE:
|
---|
1583 | #if LWIP_TCP_KEEPALIVE
|
---|
1584 | case TCP_KEEPIDLE:
|
---|
1585 | case TCP_KEEPINTVL:
|
---|
1586 | case TCP_KEEPCNT:
|
---|
1587 | #endif /* LWIP_TCP_KEEPALIVE */
|
---|
1588 | break;
|
---|
1589 |
|
---|
1590 | default:
|
---|
1591 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
|
---|
1592 | s, optname));
|
---|
1593 | err = ENOPROTOOPT;
|
---|
1594 | } /* switch (optname) */
|
---|
1595 | break;
|
---|
1596 | #endif /* LWIP_TCP */
|
---|
1597 | #if LWIP_UDP && LWIP_UDPLITE
|
---|
1598 | /* Level: IPPROTO_UDPLITE */
|
---|
1599 | case IPPROTO_UDPLITE:
|
---|
1600 | if (*optlen < sizeof(int)) {
|
---|
1601 | err = EINVAL;
|
---|
1602 | break;
|
---|
1603 | }
|
---|
1604 |
|
---|
1605 | /* If this is no UDP lite socket, ignore any options. */
|
---|
1606 | if (sock->conn->type != NETCONN_UDPLITE) {
|
---|
1607 | return 0;
|
---|
1608 | }
|
---|
1609 |
|
---|
1610 | switch (optname) {
|
---|
1611 | case UDPLITE_SEND_CSCOV:
|
---|
1612 | case UDPLITE_RECV_CSCOV:
|
---|
1613 | break;
|
---|
1614 |
|
---|
1615 | default:
|
---|
1616 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
|
---|
1617 | s, optname));
|
---|
1618 | err = ENOPROTOOPT;
|
---|
1619 | } /* switch (optname) */
|
---|
1620 | break;
|
---|
1621 | #endif /* LWIP_UDP && LWIP_UDPLITE*/
|
---|
1622 | /* UNDEFINED LEVEL */
|
---|
1623 | default:
|
---|
1624 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
|
---|
1625 | s, level, optname));
|
---|
1626 | err = ENOPROTOOPT;
|
---|
1627 | } /* switch */
|
---|
1628 |
|
---|
1629 |
|
---|
1630 | if (err != ERR_OK) {
|
---|
1631 | sock_set_errno(sock, err);
|
---|
1632 | return -1;
|
---|
1633 | }
|
---|
1634 |
|
---|
1635 | /* Now do the actual option processing */
|
---|
1636 | data.sock = sock;
|
---|
1637 | #ifdef LWIP_DEBUG
|
---|
1638 | data.s = s;
|
---|
1639 | #endif /* LWIP_DEBUG */
|
---|
1640 | data.level = level;
|
---|
1641 | data.optname = optname;
|
---|
1642 | data.optval = optval;
|
---|
1643 | data.optlen = optlen;
|
---|
1644 | data.err = err;
|
---|
1645 | tcpip_callback(lwip_getsockopt_internal, &data);
|
---|
1646 | sys_arch_sem_wait(&sock->conn->op_completed, 0);
|
---|
1647 | /* maybe lwip_getsockopt_internal has changed err */
|
---|
1648 | err = data.err;
|
---|
1649 |
|
---|
1650 | sock_set_errno(sock, err);
|
---|
1651 | return err ? -1 : 0;
|
---|
1652 | }
|
---|
1653 |
|
---|
1654 | static void
|
---|
1655 | lwip_getsockopt_internal(void *arg)
|
---|
1656 | {
|
---|
1657 | struct lwip_sock *sock;
|
---|
1658 | #ifdef LWIP_DEBUG
|
---|
1659 | int s;
|
---|
1660 | #endif /* LWIP_DEBUG */
|
---|
1661 | int level, optname;
|
---|
1662 | void *optval;
|
---|
1663 | struct lwip_setgetsockopt_data *data;
|
---|
1664 |
|
---|
1665 | LWIP_ASSERT("arg != NULL", arg != NULL);
|
---|
1666 |
|
---|
1667 | data = (struct lwip_setgetsockopt_data*)arg;
|
---|
1668 | sock = data->sock;
|
---|
1669 | #ifdef LWIP_DEBUG
|
---|
1670 | s = data->s;
|
---|
1671 | #endif /* LWIP_DEBUG */
|
---|
1672 | level = data->level;
|
---|
1673 | optname = data->optname;
|
---|
1674 | optval = data->optval;
|
---|
1675 |
|
---|
1676 | switch (level) {
|
---|
1677 |
|
---|
1678 | /* Level: SOL_SOCKET */
|
---|
1679 | case SOL_SOCKET:
|
---|
1680 | switch (optname) {
|
---|
1681 |
|
---|
1682 | /* The option flags */
|
---|
1683 | case SO_ACCEPTCONN:
|
---|
1684 | case SO_BROADCAST:
|
---|
1685 | /* UNIMPL case SO_DEBUG: */
|
---|
1686 | /* UNIMPL case SO_DONTROUTE: */
|
---|
1687 | case SO_KEEPALIVE:
|
---|
1688 | /* UNIMPL case SO_OOBINCLUDE: */
|
---|
1689 | #if SO_REUSE
|
---|
1690 | case SO_REUSEADDR:
|
---|
1691 | case SO_REUSEPORT:
|
---|
1692 | #endif /* SO_REUSE */
|
---|
1693 | /*case SO_USELOOPBACK: UNIMPL */
|
---|
1694 | *(int*)optval = ip_get_option(sock->conn->pcb.ip, optname);
|
---|
1695 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
|
---|
1696 | s, optname, (*(int*)optval?"on":"off")));
|
---|
1697 | break;
|
---|
1698 |
|
---|
1699 | case SO_TYPE:
|
---|
1700 | switch (NETCONNTYPE_GROUP(sock->conn->type)) {
|
---|
1701 | case NETCONN_RAW:
|
---|
1702 | *(int*)optval = SOCK_RAW;
|
---|
1703 | break;
|
---|
1704 | case NETCONN_TCP:
|
---|
1705 | *(int*)optval = SOCK_STREAM;
|
---|
1706 | break;
|
---|
1707 | case NETCONN_UDP:
|
---|
1708 | *(int*)optval = SOCK_DGRAM;
|
---|
1709 | break;
|
---|
1710 | default: /* unrecognized socket type */
|
---|
1711 | *(int*)optval = sock->conn->type;
|
---|
1712 | LWIP_DEBUGF(SOCKETS_DEBUG,
|
---|
1713 | ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
|
---|
1714 | s, *(int *)optval));
|
---|
1715 | } /* switch (sock->conn->type) */
|
---|
1716 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
|
---|
1717 | s, *(int *)optval));
|
---|
1718 | break;
|
---|
1719 |
|
---|
1720 | case SO_ERROR:
|
---|
1721 | /* only overwrite ERR_OK or tempoary errors */
|
---|
1722 | if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
|
---|
1723 | sock_set_errno(sock, err_to_errno(sock->conn->last_err));
|
---|
1724 | }
|
---|
1725 | *(int *)optval = sock->err;
|
---|
1726 | sock->err = 0;
|
---|
1727 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
|
---|
1728 | s, *(int *)optval));
|
---|
1729 | break;
|
---|
1730 |
|
---|
1731 | #if LWIP_SO_SNDTIMEO
|
---|
1732 | case SO_SNDTIMEO:
|
---|
1733 | *(int *)optval = netconn_get_sendtimeout(sock->conn);
|
---|
1734 | break;
|
---|
1735 | #endif /* LWIP_SO_SNDTIMEO */
|
---|
1736 | #if LWIP_SO_RCVTIMEO
|
---|
1737 | case SO_RCVTIMEO:
|
---|
1738 | *(int *)optval = netconn_get_recvtimeout(sock->conn);
|
---|
1739 | break;
|
---|
1740 | #endif /* LWIP_SO_RCVTIMEO */
|
---|
1741 | #if LWIP_SO_RCVBUF
|
---|
1742 | case SO_RCVBUF:
|
---|
1743 | *(int *)optval = netconn_get_recvbufsize(sock->conn);
|
---|
1744 | break;
|
---|
1745 | #endif /* LWIP_SO_RCVBUF */
|
---|
1746 | #if LWIP_UDP
|
---|
1747 | case SO_NO_CHECK:
|
---|
1748 | *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
|
---|
1749 | break;
|
---|
1750 | #endif /* LWIP_UDP*/
|
---|
1751 | default:
|
---|
1752 | LWIP_ASSERT("unhandled optname", 0);
|
---|
1753 | break;
|
---|
1754 | } /* switch (optname) */
|
---|
1755 | break;
|
---|
1756 |
|
---|
1757 | /* Level: IPPROTO_IP */
|
---|
1758 | case IPPROTO_IP:
|
---|
1759 | switch (optname) {
|
---|
1760 | case IP_TTL:
|
---|
1761 | *(int*)optval = sock->conn->pcb.ip->ttl;
|
---|
1762 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
|
---|
1763 | s, *(int *)optval));
|
---|
1764 | break;
|
---|
1765 | case IP_TOS:
|
---|
1766 | *(int*)optval = sock->conn->pcb.ip->tos;
|
---|
1767 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
|
---|
1768 | s, *(int *)optval));
|
---|
1769 | break;
|
---|
1770 | #if LWIP_IGMP
|
---|
1771 | case IP_MULTICAST_TTL:
|
---|
1772 | *(u8_t*)optval = sock->conn->pcb.ip->ttl;
|
---|
1773 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
|
---|
1774 | s, *(int *)optval));
|
---|
1775 | break;
|
---|
1776 | case IP_MULTICAST_IF:
|
---|
1777 | inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
|
---|
1778 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
|
---|
1779 | s, *(u32_t *)optval));
|
---|
1780 | break;
|
---|
1781 | case IP_MULTICAST_LOOP:
|
---|
1782 | if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
|
---|
1783 | *(u8_t*)optval = 1;
|
---|
1784 | } else {
|
---|
1785 | *(u8_t*)optval = 0;
|
---|
1786 | }
|
---|
1787 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
|
---|
1788 | s, *(int *)optval));
|
---|
1789 | break;
|
---|
1790 | #endif /* LWIP_IGMP */
|
---|
1791 | default:
|
---|
1792 | LWIP_ASSERT("unhandled optname", 0);
|
---|
1793 | break;
|
---|
1794 | } /* switch (optname) */
|
---|
1795 | break;
|
---|
1796 |
|
---|
1797 | #if LWIP_TCP
|
---|
1798 | /* Level: IPPROTO_TCP */
|
---|
1799 | case IPPROTO_TCP:
|
---|
1800 | switch (optname) {
|
---|
1801 | case TCP_NODELAY:
|
---|
1802 | *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
|
---|
1803 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
|
---|
1804 | s, (*(int*)optval)?"on":"off") );
|
---|
1805 | break;
|
---|
1806 | case TCP_KEEPALIVE:
|
---|
1807 | *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
|
---|
1808 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
|
---|
1809 | s, *(int *)optval));
|
---|
1810 | break;
|
---|
1811 |
|
---|
1812 | #if LWIP_TCP_KEEPALIVE
|
---|
1813 | case TCP_KEEPIDLE:
|
---|
1814 | *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
|
---|
1815 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
|
---|
1816 | s, *(int *)optval));
|
---|
1817 | break;
|
---|
1818 | case TCP_KEEPINTVL:
|
---|
1819 | *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
|
---|
1820 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
|
---|
1821 | s, *(int *)optval));
|
---|
1822 | break;
|
---|
1823 | case TCP_KEEPCNT:
|
---|
1824 | *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
|
---|
1825 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
|
---|
1826 | s, *(int *)optval));
|
---|
1827 | break;
|
---|
1828 | #endif /* LWIP_TCP_KEEPALIVE */
|
---|
1829 | default:
|
---|
1830 | LWIP_ASSERT("unhandled optname", 0);
|
---|
1831 | break;
|
---|
1832 | } /* switch (optname) */
|
---|
1833 | break;
|
---|
1834 | #endif /* LWIP_TCP */
|
---|
1835 | #if LWIP_UDP && LWIP_UDPLITE
|
---|
1836 | /* Level: IPPROTO_UDPLITE */
|
---|
1837 | case IPPROTO_UDPLITE:
|
---|
1838 | switch (optname) {
|
---|
1839 | case UDPLITE_SEND_CSCOV:
|
---|
1840 | *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
|
---|
1841 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
|
---|
1842 | s, (*(int*)optval)) );
|
---|
1843 | break;
|
---|
1844 | case UDPLITE_RECV_CSCOV:
|
---|
1845 | *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
|
---|
1846 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
|
---|
1847 | s, (*(int*)optval)) );
|
---|
1848 | break;
|
---|
1849 | default:
|
---|
1850 | LWIP_ASSERT("unhandled optname", 0);
|
---|
1851 | break;
|
---|
1852 | } /* switch (optname) */
|
---|
1853 | break;
|
---|
1854 | #endif /* LWIP_UDP */
|
---|
1855 | default:
|
---|
1856 | LWIP_ASSERT("unhandled level", 0);
|
---|
1857 | break;
|
---|
1858 | } /* switch (level) */
|
---|
1859 | sys_sem_signal(&sock->conn->op_completed);
|
---|
1860 | }
|
---|
1861 |
|
---|
1862 | int
|
---|
1863 | lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
|
---|
1864 | {
|
---|
1865 | struct lwip_sock *sock = get_socket(s);
|
---|
1866 | err_t err = ERR_OK;
|
---|
1867 | struct lwip_setgetsockopt_data data;
|
---|
1868 |
|
---|
1869 | if (!sock) {
|
---|
1870 | return -1;
|
---|
1871 | }
|
---|
1872 |
|
---|
1873 | if (NULL == optval) {
|
---|
1874 | sock_set_errno(sock, EFAULT);
|
---|
1875 | return -1;
|
---|
1876 | }
|
---|
1877 |
|
---|
1878 | /* Do length and type checks for the various options first, to keep it readable. */
|
---|
1879 | switch (level) {
|
---|
1880 |
|
---|
1881 | /* Level: SOL_SOCKET */
|
---|
1882 | case SOL_SOCKET:
|
---|
1883 | switch (optname) {
|
---|
1884 |
|
---|
1885 | case SO_BROADCAST:
|
---|
1886 | /* UNIMPL case SO_DEBUG: */
|
---|
1887 | /* UNIMPL case SO_DONTROUTE: */
|
---|
1888 | case SO_KEEPALIVE:
|
---|
1889 | /* UNIMPL case case SO_CONTIMEO: */
|
---|
1890 | #if LWIP_SO_SNDTIMEO
|
---|
1891 | case SO_SNDTIMEO:
|
---|
1892 | #endif /* LWIP_SO_SNDTIMEO */
|
---|
1893 | #if LWIP_SO_RCVTIMEO
|
---|
1894 | case SO_RCVTIMEO:
|
---|
1895 | #endif /* LWIP_SO_RCVTIMEO */
|
---|
1896 | #if LWIP_SO_RCVBUF
|
---|
1897 | case SO_RCVBUF:
|
---|
1898 | #endif /* LWIP_SO_RCVBUF */
|
---|
1899 | /* UNIMPL case SO_OOBINLINE: */
|
---|
1900 | /* UNIMPL case SO_SNDBUF: */
|
---|
1901 | /* UNIMPL case SO_RCVLOWAT: */
|
---|
1902 | /* UNIMPL case SO_SNDLOWAT: */
|
---|
1903 | #if SO_REUSE
|
---|
1904 | case SO_REUSEADDR:
|
---|
1905 | case SO_REUSEPORT:
|
---|
1906 | #endif /* SO_REUSE */
|
---|
1907 | /* UNIMPL case SO_USELOOPBACK: */
|
---|
1908 | if (optlen < sizeof(int)) {
|
---|
1909 | err = EINVAL;
|
---|
1910 | }
|
---|
1911 | break;
|
---|
1912 | case SO_NO_CHECK:
|
---|
1913 | if (optlen < sizeof(int)) {
|
---|
1914 | err = EINVAL;
|
---|
1915 | }
|
---|
1916 | #if LWIP_UDP
|
---|
1917 | if ((sock->conn->type != NETCONN_UDP) ||
|
---|
1918 | ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
|
---|
1919 | /* this flag is only available for UDP, not for UDP lite */
|
---|
1920 | err = EAFNOSUPPORT;
|
---|
1921 | }
|
---|
1922 | #endif /* LWIP_UDP */
|
---|
1923 | break;
|
---|
1924 | default:
|
---|
1925 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
|
---|
1926 | s, optname));
|
---|
1927 | err = ENOPROTOOPT;
|
---|
1928 | } /* switch (optname) */
|
---|
1929 | break;
|
---|
1930 |
|
---|
1931 | /* Level: IPPROTO_IP */
|
---|
1932 | case IPPROTO_IP:
|
---|
1933 | switch (optname) {
|
---|
1934 | /* UNIMPL case IP_HDRINCL: */
|
---|
1935 | /* UNIMPL case IP_RCVDSTADDR: */
|
---|
1936 | /* UNIMPL case IP_RCVIF: */
|
---|
1937 | case IP_TTL:
|
---|
1938 | case IP_TOS:
|
---|
1939 | if (optlen < sizeof(int)) {
|
---|
1940 | err = EINVAL;
|
---|
1941 | }
|
---|
1942 | break;
|
---|
1943 | #if LWIP_IGMP
|
---|
1944 | case IP_MULTICAST_TTL:
|
---|
1945 | if (optlen < sizeof(u8_t)) {
|
---|
1946 | err = EINVAL;
|
---|
1947 | }
|
---|
1948 | if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
---|
1949 | err = EAFNOSUPPORT;
|
---|
1950 | }
|
---|
1951 | break;
|
---|
1952 | case IP_MULTICAST_IF:
|
---|
1953 | if (optlen < sizeof(struct in_addr)) {
|
---|
1954 | err = EINVAL;
|
---|
1955 | }
|
---|
1956 | if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
---|
1957 | err = EAFNOSUPPORT;
|
---|
1958 | }
|
---|
1959 | break;
|
---|
1960 | case IP_MULTICAST_LOOP:
|
---|
1961 | if (optlen < sizeof(u8_t)) {
|
---|
1962 | err = EINVAL;
|
---|
1963 | }
|
---|
1964 | if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
---|
1965 | err = EAFNOSUPPORT;
|
---|
1966 | }
|
---|
1967 | break;
|
---|
1968 | case IP_ADD_MEMBERSHIP:
|
---|
1969 | case IP_DROP_MEMBERSHIP:
|
---|
1970 | if (optlen < sizeof(struct ip_mreq)) {
|
---|
1971 | err = EINVAL;
|
---|
1972 | }
|
---|
1973 | if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
---|
1974 | err = EAFNOSUPPORT;
|
---|
1975 | }
|
---|
1976 | break;
|
---|
1977 | #endif /* LWIP_IGMP */
|
---|
1978 | default:
|
---|
1979 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
|
---|
1980 | s, optname));
|
---|
1981 | err = ENOPROTOOPT;
|
---|
1982 | } /* switch (optname) */
|
---|
1983 | break;
|
---|
1984 |
|
---|
1985 | #if LWIP_TCP
|
---|
1986 | /* Level: IPPROTO_TCP */
|
---|
1987 | case IPPROTO_TCP:
|
---|
1988 | if (optlen < sizeof(int)) {
|
---|
1989 | err = EINVAL;
|
---|
1990 | break;
|
---|
1991 | }
|
---|
1992 |
|
---|
1993 | /* If this is no TCP socket, ignore any options. */
|
---|
1994 | if (sock->conn->type != NETCONN_TCP)
|
---|
1995 | return 0;
|
---|
1996 |
|
---|
1997 | switch (optname) {
|
---|
1998 | case TCP_NODELAY:
|
---|
1999 | case TCP_KEEPALIVE:
|
---|
2000 | #if LWIP_TCP_KEEPALIVE
|
---|
2001 | case TCP_KEEPIDLE:
|
---|
2002 | case TCP_KEEPINTVL:
|
---|
2003 | case TCP_KEEPCNT:
|
---|
2004 | #endif /* LWIP_TCP_KEEPALIVE */
|
---|
2005 | break;
|
---|
2006 |
|
---|
2007 | default:
|
---|
2008 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
|
---|
2009 | s, optname));
|
---|
2010 | err = ENOPROTOOPT;
|
---|
2011 | } /* switch (optname) */
|
---|
2012 | break;
|
---|
2013 | #endif /* LWIP_TCP */
|
---|
2014 | #if LWIP_UDP && LWIP_UDPLITE
|
---|
2015 | /* Level: IPPROTO_UDPLITE */
|
---|
2016 | case IPPROTO_UDPLITE:
|
---|
2017 | if (optlen < sizeof(int)) {
|
---|
2018 | err = EINVAL;
|
---|
2019 | break;
|
---|
2020 | }
|
---|
2021 |
|
---|
2022 | /* If this is no UDP lite socket, ignore any options. */
|
---|
2023 | if (sock->conn->type != NETCONN_UDPLITE)
|
---|
2024 | return 0;
|
---|
2025 |
|
---|
2026 | switch (optname) {
|
---|
2027 | case UDPLITE_SEND_CSCOV:
|
---|
2028 | case UDPLITE_RECV_CSCOV:
|
---|
2029 | break;
|
---|
2030 |
|
---|
2031 | default:
|
---|
2032 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
|
---|
2033 | s, optname));
|
---|
2034 | err = ENOPROTOOPT;
|
---|
2035 | } /* switch (optname) */
|
---|
2036 | break;
|
---|
2037 | #endif /* LWIP_UDP && LWIP_UDPLITE */
|
---|
2038 | /* UNDEFINED LEVEL */
|
---|
2039 | default:
|
---|
2040 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
|
---|
2041 | s, level, optname));
|
---|
2042 | err = ENOPROTOOPT;
|
---|
2043 | } /* switch (level) */
|
---|
2044 |
|
---|
2045 |
|
---|
2046 | if (err != ERR_OK) {
|
---|
2047 | sock_set_errno(sock, err);
|
---|
2048 | return -1;
|
---|
2049 | }
|
---|
2050 |
|
---|
2051 |
|
---|
2052 | /* Now do the actual option processing */
|
---|
2053 | data.sock = sock;
|
---|
2054 | #ifdef LWIP_DEBUG
|
---|
2055 | data.s = s;
|
---|
2056 | #endif /* LWIP_DEBUG */
|
---|
2057 | data.level = level;
|
---|
2058 | data.optname = optname;
|
---|
2059 | data.optval = (void*)optval;
|
---|
2060 | data.optlen = &optlen;
|
---|
2061 | data.err = err;
|
---|
2062 | tcpip_callback(lwip_setsockopt_internal, &data);
|
---|
2063 | sys_arch_sem_wait(&sock->conn->op_completed, 0);
|
---|
2064 | /* maybe lwip_setsockopt_internal has changed err */
|
---|
2065 | err = data.err;
|
---|
2066 |
|
---|
2067 | sock_set_errno(sock, err);
|
---|
2068 | return err ? -1 : 0;
|
---|
2069 | }
|
---|
2070 |
|
---|
2071 | static void
|
---|
2072 | lwip_setsockopt_internal(void *arg)
|
---|
2073 | {
|
---|
2074 | struct lwip_sock *sock;
|
---|
2075 | #ifdef LWIP_DEBUG
|
---|
2076 | int s;
|
---|
2077 | #endif /* LWIP_DEBUG */
|
---|
2078 | int level, optname;
|
---|
2079 | const void *optval;
|
---|
2080 | struct lwip_setgetsockopt_data *data;
|
---|
2081 |
|
---|
2082 | LWIP_ASSERT("arg != NULL", arg != NULL);
|
---|
2083 |
|
---|
2084 | data = (struct lwip_setgetsockopt_data*)arg;
|
---|
2085 | sock = data->sock;
|
---|
2086 | #ifdef LWIP_DEBUG
|
---|
2087 | s = data->s;
|
---|
2088 | #endif /* LWIP_DEBUG */
|
---|
2089 | level = data->level;
|
---|
2090 | optname = data->optname;
|
---|
2091 | optval = data->optval;
|
---|
2092 |
|
---|
2093 | switch (level) {
|
---|
2094 |
|
---|
2095 | /* Level: SOL_SOCKET */
|
---|
2096 | case SOL_SOCKET:
|
---|
2097 | switch (optname) {
|
---|
2098 |
|
---|
2099 | /* The option flags */
|
---|
2100 | case SO_BROADCAST:
|
---|
2101 | /* UNIMPL case SO_DEBUG: */
|
---|
2102 | /* UNIMPL case SO_DONTROUTE: */
|
---|
2103 | case SO_KEEPALIVE:
|
---|
2104 | /* UNIMPL case SO_OOBINCLUDE: */
|
---|
2105 | #if SO_REUSE
|
---|
2106 | case SO_REUSEADDR:
|
---|
2107 | case SO_REUSEPORT:
|
---|
2108 | #endif /* SO_REUSE */
|
---|
2109 | /* UNIMPL case SO_USELOOPBACK: */
|
---|
2110 | if (*(int*)optval) {
|
---|
2111 | ip_set_option(sock->conn->pcb.ip, optname);
|
---|
2112 | } else {
|
---|
2113 | ip_reset_option(sock->conn->pcb.ip, optname);
|
---|
2114 | }
|
---|
2115 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
|
---|
2116 | s, optname, (*(int*)optval?"on":"off")));
|
---|
2117 | break;
|
---|
2118 | #if LWIP_SO_SNDTIMEO
|
---|
2119 | case SO_SNDTIMEO:
|
---|
2120 | netconn_set_sendtimeout(sock->conn, (s32_t)*(int*)optval);
|
---|
2121 | break;
|
---|
2122 | #endif /* LWIP_SO_SNDTIMEO */
|
---|
2123 | #if LWIP_SO_RCVTIMEO
|
---|
2124 | case SO_RCVTIMEO:
|
---|
2125 | netconn_set_recvtimeout(sock->conn, *(int*)optval);
|
---|
2126 | break;
|
---|
2127 | #endif /* LWIP_SO_RCVTIMEO */
|
---|
2128 | #if LWIP_SO_RCVBUF
|
---|
2129 | case SO_RCVBUF:
|
---|
2130 | netconn_set_recvbufsize(sock->conn, *(int*)optval);
|
---|
2131 | break;
|
---|
2132 | #endif /* LWIP_SO_RCVBUF */
|
---|
2133 | #if LWIP_UDP
|
---|
2134 | case SO_NO_CHECK:
|
---|
2135 | if (*(int*)optval) {
|
---|
2136 | udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
|
---|
2137 | } else {
|
---|
2138 | udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
|
---|
2139 | }
|
---|
2140 | break;
|
---|
2141 | #endif /* LWIP_UDP */
|
---|
2142 | default:
|
---|
2143 | LWIP_ASSERT("unhandled optname", 0);
|
---|
2144 | break;
|
---|
2145 | } /* switch (optname) */
|
---|
2146 | break;
|
---|
2147 |
|
---|
2148 | /* Level: IPPROTO_IP */
|
---|
2149 | case IPPROTO_IP:
|
---|
2150 | switch (optname) {
|
---|
2151 | case IP_TTL:
|
---|
2152 | sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
|
---|
2153 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
|
---|
2154 | s, sock->conn->pcb.ip->ttl));
|
---|
2155 | break;
|
---|
2156 | case IP_TOS:
|
---|
2157 | sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
|
---|
2158 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
|
---|
2159 | s, sock->conn->pcb.ip->tos));
|
---|
2160 | break;
|
---|
2161 | #if LWIP_IGMP
|
---|
2162 | case IP_MULTICAST_TTL:
|
---|
2163 | sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
|
---|
2164 | break;
|
---|
2165 | case IP_MULTICAST_IF:
|
---|
2166 | inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
|
---|
2167 | break;
|
---|
2168 | case IP_MULTICAST_LOOP:
|
---|
2169 | if (*(u8_t*)optval) {
|
---|
2170 | udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
|
---|
2171 | } else {
|
---|
2172 | udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
|
---|
2173 | }
|
---|
2174 | break;
|
---|
2175 | case IP_ADD_MEMBERSHIP:
|
---|
2176 | case IP_DROP_MEMBERSHIP:
|
---|
2177 | {
|
---|
2178 | /* If this is a TCP or a RAW socket, ignore these options. */
|
---|
2179 | struct ip_mreq *imr = (struct ip_mreq *)optval;
|
---|
2180 | ip_addr_t if_addr;
|
---|
2181 | ip_addr_t multi_addr;
|
---|
2182 | inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
|
---|
2183 | inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
|
---|
2184 | if(optname == IP_ADD_MEMBERSHIP){
|
---|
2185 | data->err = igmp_joingroup(&if_addr, &multi_addr);
|
---|
2186 | } else {
|
---|
2187 | data->err = igmp_leavegroup(&if_addr, &multi_addr);
|
---|
2188 | }
|
---|
2189 | if(data->err != ERR_OK) {
|
---|
2190 | data->err = EADDRNOTAVAIL;
|
---|
2191 | }
|
---|
2192 | }
|
---|
2193 | break;
|
---|
2194 | #endif /* LWIP_IGMP */
|
---|
2195 | default:
|
---|
2196 | LWIP_ASSERT("unhandled optname", 0);
|
---|
2197 | break;
|
---|
2198 | } /* switch (optname) */
|
---|
2199 | break;
|
---|
2200 |
|
---|
2201 | #if LWIP_TCP
|
---|
2202 | /* Level: IPPROTO_TCP */
|
---|
2203 | case IPPROTO_TCP:
|
---|
2204 | switch (optname) {
|
---|
2205 | case TCP_NODELAY:
|
---|
2206 | if (*(int*)optval) {
|
---|
2207 | tcp_nagle_disable(sock->conn->pcb.tcp);
|
---|
2208 | } else {
|
---|
2209 | tcp_nagle_enable(sock->conn->pcb.tcp);
|
---|
2210 | }
|
---|
2211 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
|
---|
2212 | s, (*(int *)optval)?"on":"off") );
|
---|
2213 | break;
|
---|
2214 | case TCP_KEEPALIVE:
|
---|
2215 | sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
|
---|
2216 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
|
---|
2217 | s, sock->conn->pcb.tcp->keep_idle));
|
---|
2218 | break;
|
---|
2219 |
|
---|
2220 | #if LWIP_TCP_KEEPALIVE
|
---|
2221 | case TCP_KEEPIDLE:
|
---|
2222 | sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
|
---|
2223 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
|
---|
2224 | s, sock->conn->pcb.tcp->keep_idle));
|
---|
2225 | break;
|
---|
2226 | case TCP_KEEPINTVL:
|
---|
2227 | sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
|
---|
2228 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
|
---|
2229 | s, sock->conn->pcb.tcp->keep_intvl));
|
---|
2230 | break;
|
---|
2231 | case TCP_KEEPCNT:
|
---|
2232 | sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
|
---|
2233 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
|
---|
2234 | s, sock->conn->pcb.tcp->keep_cnt));
|
---|
2235 | break;
|
---|
2236 | #endif /* LWIP_TCP_KEEPALIVE */
|
---|
2237 | default:
|
---|
2238 | LWIP_ASSERT("unhandled optname", 0);
|
---|
2239 | break;
|
---|
2240 | } /* switch (optname) */
|
---|
2241 | break;
|
---|
2242 | #endif /* LWIP_TCP*/
|
---|
2243 | #if LWIP_UDP && LWIP_UDPLITE
|
---|
2244 | /* Level: IPPROTO_UDPLITE */
|
---|
2245 | case IPPROTO_UDPLITE:
|
---|
2246 | switch (optname) {
|
---|
2247 | case UDPLITE_SEND_CSCOV:
|
---|
2248 | if ((*(int*)optval != 0) && ((*(int*)optval < 8) || (*(int*)optval > 0xffff))) {
|
---|
2249 | /* don't allow illegal values! */
|
---|
2250 | sock->conn->pcb.udp->chksum_len_tx = 8;
|
---|
2251 | } else {
|
---|
2252 | sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
|
---|
2253 | }
|
---|
2254 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
|
---|
2255 | s, (*(int*)optval)) );
|
---|
2256 | break;
|
---|
2257 | case UDPLITE_RECV_CSCOV:
|
---|
2258 | if ((*(int*)optval != 0) && ((*(int*)optval < 8) || (*(int*)optval > 0xffff))) {
|
---|
2259 | /* don't allow illegal values! */
|
---|
2260 | sock->conn->pcb.udp->chksum_len_rx = 8;
|
---|
2261 | } else {
|
---|
2262 | sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
|
---|
2263 | }
|
---|
2264 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
|
---|
2265 | s, (*(int*)optval)) );
|
---|
2266 | break;
|
---|
2267 | default:
|
---|
2268 | LWIP_ASSERT("unhandled optname", 0);
|
---|
2269 | break;
|
---|
2270 | } /* switch (optname) */
|
---|
2271 | break;
|
---|
2272 | #endif /* LWIP_UDP */
|
---|
2273 | default:
|
---|
2274 | LWIP_ASSERT("unhandled level", 0);
|
---|
2275 | break;
|
---|
2276 | } /* switch (level) */
|
---|
2277 | sys_sem_signal(&sock->conn->op_completed);
|
---|
2278 | }
|
---|
2279 |
|
---|
2280 | int
|
---|
2281 | lwip_ioctl(int s, long cmd, void *argp)
|
---|
2282 | {
|
---|
2283 | struct lwip_sock *sock = get_socket(s);
|
---|
2284 | u8_t val;
|
---|
2285 | #if LWIP_SO_RCVBUF
|
---|
2286 | u16_t buflen = 0;
|
---|
2287 | s16_t recv_avail;
|
---|
2288 | #endif /* LWIP_SO_RCVBUF */
|
---|
2289 |
|
---|
2290 | if (!sock) {
|
---|
2291 | return -1;
|
---|
2292 | }
|
---|
2293 |
|
---|
2294 | switch (cmd) {
|
---|
2295 | #if LWIP_SO_RCVBUF
|
---|
2296 | case FIONREAD:
|
---|
2297 | if (!argp) {
|
---|
2298 | sock_set_errno(sock, EINVAL);
|
---|
2299 | return -1;
|
---|
2300 | }
|
---|
2301 |
|
---|
2302 | SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
|
---|
2303 | if (recv_avail < 0) {
|
---|
2304 | recv_avail = 0;
|
---|
2305 | }
|
---|
2306 | *((u16_t*)argp) = (u16_t)recv_avail;
|
---|
2307 |
|
---|
2308 | /* Check if there is data left from the last recv operation. /maq 041215 */
|
---|
2309 | if (sock->lastdata) {
|
---|
2310 | struct pbuf *p = (struct pbuf *)sock->lastdata;
|
---|
2311 | if (netconn_type(sock->conn) != NETCONN_TCP) {
|
---|
2312 | p = ((struct netbuf *)p)->p;
|
---|
2313 | }
|
---|
2314 | buflen = p->tot_len;
|
---|
2315 | buflen -= sock->lastoffset;
|
---|
2316 |
|
---|
2317 | *((u16_t*)argp) += buflen;
|
---|
2318 | }
|
---|
2319 |
|
---|
2320 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
|
---|
2321 | sock_set_errno(sock, 0);
|
---|
2322 | return 0;
|
---|
2323 | #endif /* LWIP_SO_RCVBUF */
|
---|
2324 |
|
---|
2325 | case FIONBIO:
|
---|
2326 | val = 0;
|
---|
2327 | if (argp && *(u32_t*)argp) {
|
---|
2328 | val = 1;
|
---|
2329 | }
|
---|
2330 | netconn_set_nonblocking(sock->conn, val);
|
---|
2331 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
|
---|
2332 | sock_set_errno(sock, 0);
|
---|
2333 | return 0;
|
---|
2334 |
|
---|
2335 | default:
|
---|
2336 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
|
---|
2337 | sock_set_errno(sock, ENOSYS); /* not yet implemented */
|
---|
2338 | return -1;
|
---|
2339 | } /* switch (cmd) */
|
---|
2340 | }
|
---|
2341 |
|
---|
2342 | /** A minimal implementation of fcntl.
|
---|
2343 | * Currently only the commands F_GETFL and F_SETFL are implemented.
|
---|
2344 | * Only the flag O_NONBLOCK is implemented.
|
---|
2345 | */
|
---|
2346 | int
|
---|
2347 | lwip_fcntl(int s, int cmd, int val)
|
---|
2348 | {
|
---|
2349 | struct lwip_sock *sock = get_socket(s);
|
---|
2350 | int ret = -1;
|
---|
2351 |
|
---|
2352 | if (!sock || !sock->conn) {
|
---|
2353 | return -1;
|
---|
2354 | }
|
---|
2355 |
|
---|
2356 | switch (cmd) {
|
---|
2357 | case F_GETFL:
|
---|
2358 | ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
|
---|
2359 | break;
|
---|
2360 | case F_SETFL:
|
---|
2361 | if ((val & ~O_NONBLOCK) == 0) {
|
---|
2362 | /* only O_NONBLOCK, all other bits are zero */
|
---|
2363 | netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
|
---|
2364 | ret = 0;
|
---|
2365 | }
|
---|
2366 | break;
|
---|
2367 | default:
|
---|
2368 | LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
|
---|
2369 | break;
|
---|
2370 | }
|
---|
2371 | return ret;
|
---|
2372 | }
|
---|
2373 |
|
---|
2374 | #endif /* LWIP_SOCKET */
|
---|