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Dependencies:   BufferedSerial FatFileSystemCpp mbed

EthernetInterface/lwip/api/sockets.c@22:0dd9c1b5664a, 2021-07-05 (annotated)

Committer:
AndyA
Date:
Mon Jul 05 15:30:14 2021 +0000
Revision:
22:0dd9c1b5664a
First pass at adding UDP FreeD output

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AndyA 22:0dd9c1b5664a 1 /**
AndyA 22:0dd9c1b5664a 2 * @file
AndyA 22:0dd9c1b5664a 3 * Sockets BSD-Like API module
AndyA 22:0dd9c1b5664a 4 *
AndyA 22:0dd9c1b5664a 5 */
AndyA 22:0dd9c1b5664a 6
AndyA 22:0dd9c1b5664a 7 /*
AndyA 22:0dd9c1b5664a 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
AndyA 22:0dd9c1b5664a 9 * All rights reserved.
AndyA 22:0dd9c1b5664a 10 *
AndyA 22:0dd9c1b5664a 11 * Redistribution and use in source and binary forms, with or without modification,
AndyA 22:0dd9c1b5664a 12 * are permitted provided that the following conditions are met:
AndyA 22:0dd9c1b5664a 13 *
AndyA 22:0dd9c1b5664a 14 * 1. Redistributions of source code must retain the above copyright notice,
AndyA 22:0dd9c1b5664a 15 * this list of conditions and the following disclaimer.
AndyA 22:0dd9c1b5664a 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
AndyA 22:0dd9c1b5664a 17 * this list of conditions and the following disclaimer in the documentation
AndyA 22:0dd9c1b5664a 18 * and/or other materials provided with the distribution.
AndyA 22:0dd9c1b5664a 19 * 3. The name of the author may not be used to endorse or promote products
AndyA 22:0dd9c1b5664a 20 * derived from this software without specific prior written permission.
AndyA 22:0dd9c1b5664a 21 *
AndyA 22:0dd9c1b5664a 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
AndyA 22:0dd9c1b5664a 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
AndyA 22:0dd9c1b5664a 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
AndyA 22:0dd9c1b5664a 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
AndyA 22:0dd9c1b5664a 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
AndyA 22:0dd9c1b5664a 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AndyA 22:0dd9c1b5664a 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AndyA 22:0dd9c1b5664a 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
AndyA 22:0dd9c1b5664a 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
AndyA 22:0dd9c1b5664a 31 * OF SUCH DAMAGE.
AndyA 22:0dd9c1b5664a 32 *
AndyA 22:0dd9c1b5664a 33 * This file is part of the lwIP TCP/IP stack.
AndyA 22:0dd9c1b5664a 34 *
AndyA 22:0dd9c1b5664a 35 * Author: Adam Dunkels <adam@sics.se>
AndyA 22:0dd9c1b5664a 36 *
AndyA 22:0dd9c1b5664a 37 * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
AndyA 22:0dd9c1b5664a 38 *
AndyA 22:0dd9c1b5664a 39 */
AndyA 22:0dd9c1b5664a 40
AndyA 22:0dd9c1b5664a 41 #include "lwip/opt.h"
AndyA 22:0dd9c1b5664a 42
AndyA 22:0dd9c1b5664a 43 #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
AndyA 22:0dd9c1b5664a 44
AndyA 22:0dd9c1b5664a 45 #include "lwip/sockets.h"
AndyA 22:0dd9c1b5664a 46 #include "lwip/api.h"
AndyA 22:0dd9c1b5664a 47 #include "lwip/sys.h"
AndyA 22:0dd9c1b5664a 48 #include "lwip/igmp.h"
AndyA 22:0dd9c1b5664a 49 #include "lwip/inet.h"
AndyA 22:0dd9c1b5664a 50 #include "lwip/tcp.h"
AndyA 22:0dd9c1b5664a 51 #include "lwip/raw.h"
AndyA 22:0dd9c1b5664a 52 #include "lwip/udp.h"
AndyA 22:0dd9c1b5664a 53 #include "lwip/tcpip.h"
AndyA 22:0dd9c1b5664a 54 #include "lwip/pbuf.h"
AndyA 22:0dd9c1b5664a 55 #if LWIP_CHECKSUM_ON_COPY
AndyA 22:0dd9c1b5664a 56 #include "lwip/inet_chksum.h"
AndyA 22:0dd9c1b5664a 57 #endif
AndyA 22:0dd9c1b5664a 58
AndyA 22:0dd9c1b5664a 59 #include <string.h>
AndyA 22:0dd9c1b5664a 60
AndyA 22:0dd9c1b5664a 61 #define NUM_SOCKETS MEMP_NUM_NETCONN
AndyA 22:0dd9c1b5664a 62
AndyA 22:0dd9c1b5664a 63 /** Contains all internal pointers and states used for a socket */
AndyA 22:0dd9c1b5664a 64 struct lwip_sock {
AndyA 22:0dd9c1b5664a 65 /** sockets currently are built on netconns, each socket has one netconn */
AndyA 22:0dd9c1b5664a 66 struct netconn *conn;
AndyA 22:0dd9c1b5664a 67 /** data that was left from the previous read */
AndyA 22:0dd9c1b5664a 68 void *lastdata;
AndyA 22:0dd9c1b5664a 69 /** offset in the data that was left from the previous read */
AndyA 22:0dd9c1b5664a 70 u16_t lastoffset;
AndyA 22:0dd9c1b5664a 71 /** number of times data was received, set by event_callback(),
AndyA 22:0dd9c1b5664a 72 tested by the receive and select functions */
AndyA 22:0dd9c1b5664a 73 s16_t rcvevent;
AndyA 22:0dd9c1b5664a 74 /** number of times data was ACKed (free send buffer), set by event_callback(),
AndyA 22:0dd9c1b5664a 75 tested by select */
AndyA 22:0dd9c1b5664a 76 u16_t sendevent;
AndyA 22:0dd9c1b5664a 77 /** error happened for this socket, set by event_callback(), tested by select */
AndyA 22:0dd9c1b5664a 78 u16_t errevent;
AndyA 22:0dd9c1b5664a 79 /** last error that occurred on this socket */
AndyA 22:0dd9c1b5664a 80 int err;
AndyA 22:0dd9c1b5664a 81 /** counter of how many threads are waiting for this socket using select */
AndyA 22:0dd9c1b5664a 82 int select_waiting;
AndyA 22:0dd9c1b5664a 83 };
AndyA 22:0dd9c1b5664a 84
AndyA 22:0dd9c1b5664a 85 /** Description for a task waiting in select */
AndyA 22:0dd9c1b5664a 86 struct lwip_select_cb {
AndyA 22:0dd9c1b5664a 87 /** Pointer to the next waiting task */
AndyA 22:0dd9c1b5664a 88 struct lwip_select_cb *next;
AndyA 22:0dd9c1b5664a 89 /** Pointer to the previous waiting task */
AndyA 22:0dd9c1b5664a 90 struct lwip_select_cb *prev;
AndyA 22:0dd9c1b5664a 91 /** readset passed to select */
AndyA 22:0dd9c1b5664a 92 fd_set *readset;
AndyA 22:0dd9c1b5664a 93 /** writeset passed to select */
AndyA 22:0dd9c1b5664a 94 fd_set *writeset;
AndyA 22:0dd9c1b5664a 95 /** unimplemented: exceptset passed to select */
AndyA 22:0dd9c1b5664a 96 fd_set *exceptset;
AndyA 22:0dd9c1b5664a 97 /** don't signal the same semaphore twice: set to 1 when signalled */
AndyA 22:0dd9c1b5664a 98 int sem_signalled;
AndyA 22:0dd9c1b5664a 99 /** semaphore to wake up a task waiting for select */
AndyA 22:0dd9c1b5664a 100 sys_sem_t sem;
AndyA 22:0dd9c1b5664a 101 };
AndyA 22:0dd9c1b5664a 102
AndyA 22:0dd9c1b5664a 103 /** This struct is used to pass data to the set/getsockopt_internal
AndyA 22:0dd9c1b5664a 104 * functions running in tcpip_thread context (only a void* is allowed) */
AndyA 22:0dd9c1b5664a 105 struct lwip_setgetsockopt_data {
AndyA 22:0dd9c1b5664a 106 /** socket struct for which to change options */
AndyA 22:0dd9c1b5664a 107 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 108 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 109 /** socket index for which to change options */
AndyA 22:0dd9c1b5664a 110 int s;
AndyA 22:0dd9c1b5664a 111 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 112 /** level of the option to process */
AndyA 22:0dd9c1b5664a 113 int level;
AndyA 22:0dd9c1b5664a 114 /** name of the option to process */
AndyA 22:0dd9c1b5664a 115 int optname;
AndyA 22:0dd9c1b5664a 116 /** set: value to set the option to
AndyA 22:0dd9c1b5664a 117 * get: value of the option is stored here */
AndyA 22:0dd9c1b5664a 118 void *optval;
AndyA 22:0dd9c1b5664a 119 /** size of *optval */
AndyA 22:0dd9c1b5664a 120 socklen_t *optlen;
AndyA 22:0dd9c1b5664a 121 /** if an error occures, it is temporarily stored here */
AndyA 22:0dd9c1b5664a 122 err_t err;
AndyA 22:0dd9c1b5664a 123 };
AndyA 22:0dd9c1b5664a 124
AndyA 22:0dd9c1b5664a 125 /** The global array of available sockets */
AndyA 22:0dd9c1b5664a 126 static struct lwip_sock sockets[NUM_SOCKETS];
AndyA 22:0dd9c1b5664a 127 /** The global list of tasks waiting for select */
AndyA 22:0dd9c1b5664a 128 static struct lwip_select_cb *select_cb_list;
AndyA 22:0dd9c1b5664a 129 /** This counter is increased from lwip_select when the list is chagned
AndyA 22:0dd9c1b5664a 130 and checked in event_callback to see if it has changed. */
AndyA 22:0dd9c1b5664a 131 static volatile int select_cb_ctr;
AndyA 22:0dd9c1b5664a 132
AndyA 22:0dd9c1b5664a 133 /** Table to quickly map an lwIP error (err_t) to a socket error
AndyA 22:0dd9c1b5664a 134 * by using -err as an index */
AndyA 22:0dd9c1b5664a 135 static const int err_to_errno_table[] = {
AndyA 22:0dd9c1b5664a 136 0, /* ERR_OK 0 No error, everything OK. */
AndyA 22:0dd9c1b5664a 137 ENOMEM, /* ERR_MEM -1 Out of memory error. */
AndyA 22:0dd9c1b5664a 138 ENOBUFS, /* ERR_BUF -2 Buffer error. */
AndyA 22:0dd9c1b5664a 139 EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
AndyA 22:0dd9c1b5664a 140 EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
AndyA 22:0dd9c1b5664a 141 EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
AndyA 22:0dd9c1b5664a 142 EINVAL, /* ERR_VAL -6 Illegal value. */
AndyA 22:0dd9c1b5664a 143 EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
AndyA 22:0dd9c1b5664a 144 EADDRINUSE, /* ERR_USE -8 Address in use. */
AndyA 22:0dd9c1b5664a 145 EALREADY, /* ERR_ISCONN -9 Already connected. */
AndyA 22:0dd9c1b5664a 146 ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
AndyA 22:0dd9c1b5664a 147 ECONNRESET, /* ERR_RST -11 Connection reset. */
AndyA 22:0dd9c1b5664a 148 ENOTCONN, /* ERR_CLSD -12 Connection closed. */
AndyA 22:0dd9c1b5664a 149 ENOTCONN, /* ERR_CONN -13 Not connected. */
AndyA 22:0dd9c1b5664a 150 EIO, /* ERR_ARG -14 Illegal argument. */
AndyA 22:0dd9c1b5664a 151 -1, /* ERR_IF -15 Low-level netif error */
AndyA 22:0dd9c1b5664a 152 };
AndyA 22:0dd9c1b5664a 153
AndyA 22:0dd9c1b5664a 154 #define ERR_TO_ERRNO_TABLE_SIZE \
AndyA 22:0dd9c1b5664a 155 (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
AndyA 22:0dd9c1b5664a 156
AndyA 22:0dd9c1b5664a 157 #define err_to_errno(err) \
AndyA 22:0dd9c1b5664a 158 ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
AndyA 22:0dd9c1b5664a 159 err_to_errno_table[-(err)] : EIO)
AndyA 22:0dd9c1b5664a 160
AndyA 22:0dd9c1b5664a 161 #ifdef ERRNO
AndyA 22:0dd9c1b5664a 162 #ifndef set_errno
AndyA 22:0dd9c1b5664a 163 #define set_errno(err) errno = (err)
AndyA 22:0dd9c1b5664a 164 #endif
AndyA 22:0dd9c1b5664a 165 #else /* ERRNO */
AndyA 22:0dd9c1b5664a 166 #define set_errno(err)
AndyA 22:0dd9c1b5664a 167 #endif /* ERRNO */
AndyA 22:0dd9c1b5664a 168
AndyA 22:0dd9c1b5664a 169 #define sock_set_errno(sk, e) do { \
AndyA 22:0dd9c1b5664a 170 sk->err = (e); \
AndyA 22:0dd9c1b5664a 171 set_errno(sk->err); \
AndyA 22:0dd9c1b5664a 172 } while (0)
AndyA 22:0dd9c1b5664a 173
AndyA 22:0dd9c1b5664a 174 /* Forward delcaration of some functions */
AndyA 22:0dd9c1b5664a 175 static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
AndyA 22:0dd9c1b5664a 176 static void lwip_getsockopt_internal(void *arg);
AndyA 22:0dd9c1b5664a 177 static void lwip_setsockopt_internal(void *arg);
AndyA 22:0dd9c1b5664a 178
AndyA 22:0dd9c1b5664a 179 /**
AndyA 22:0dd9c1b5664a 180 * Initialize this module. This function has to be called before any other
AndyA 22:0dd9c1b5664a 181 * functions in this module!
AndyA 22:0dd9c1b5664a 182 */
AndyA 22:0dd9c1b5664a 183 void
AndyA 22:0dd9c1b5664a 184 lwip_socket_init(void)
AndyA 22:0dd9c1b5664a 185 {
AndyA 22:0dd9c1b5664a 186 }
AndyA 22:0dd9c1b5664a 187
AndyA 22:0dd9c1b5664a 188 /**
AndyA 22:0dd9c1b5664a 189 * Map a externally used socket index to the internal socket representation.
AndyA 22:0dd9c1b5664a 190 *
AndyA 22:0dd9c1b5664a 191 * @param s externally used socket index
AndyA 22:0dd9c1b5664a 192 * @return struct lwip_sock for the socket or NULL if not found
AndyA 22:0dd9c1b5664a 193 */
AndyA 22:0dd9c1b5664a 194 static struct lwip_sock *
AndyA 22:0dd9c1b5664a 195 get_socket(int s)
AndyA 22:0dd9c1b5664a 196 {
AndyA 22:0dd9c1b5664a 197 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 198
AndyA 22:0dd9c1b5664a 199 if ((s < 0) || (s >= NUM_SOCKETS)) {
AndyA 22:0dd9c1b5664a 200 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
AndyA 22:0dd9c1b5664a 201 set_errno(EBADF);
AndyA 22:0dd9c1b5664a 202 return NULL;
AndyA 22:0dd9c1b5664a 203 }
AndyA 22:0dd9c1b5664a 204
AndyA 22:0dd9c1b5664a 205 sock = &sockets[s];
AndyA 22:0dd9c1b5664a 206
AndyA 22:0dd9c1b5664a 207 if (!sock->conn) {
AndyA 22:0dd9c1b5664a 208 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
AndyA 22:0dd9c1b5664a 209 set_errno(EBADF);
AndyA 22:0dd9c1b5664a 210 return NULL;
AndyA 22:0dd9c1b5664a 211 }
AndyA 22:0dd9c1b5664a 212
AndyA 22:0dd9c1b5664a 213 return sock;
AndyA 22:0dd9c1b5664a 214 }
AndyA 22:0dd9c1b5664a 215
AndyA 22:0dd9c1b5664a 216 /**
AndyA 22:0dd9c1b5664a 217 * Same as get_socket but doesn't set errno
AndyA 22:0dd9c1b5664a 218 *
AndyA 22:0dd9c1b5664a 219 * @param s externally used socket index
AndyA 22:0dd9c1b5664a 220 * @return struct lwip_sock for the socket or NULL if not found
AndyA 22:0dd9c1b5664a 221 */
AndyA 22:0dd9c1b5664a 222 static struct lwip_sock *
AndyA 22:0dd9c1b5664a 223 tryget_socket(int s)
AndyA 22:0dd9c1b5664a 224 {
AndyA 22:0dd9c1b5664a 225 if ((s < 0) || (s >= NUM_SOCKETS)) {
AndyA 22:0dd9c1b5664a 226 return NULL;
AndyA 22:0dd9c1b5664a 227 }
AndyA 22:0dd9c1b5664a 228 if (!sockets[s].conn) {
AndyA 22:0dd9c1b5664a 229 return NULL;
AndyA 22:0dd9c1b5664a 230 }
AndyA 22:0dd9c1b5664a 231 return &sockets[s];
AndyA 22:0dd9c1b5664a 232 }
AndyA 22:0dd9c1b5664a 233
AndyA 22:0dd9c1b5664a 234 /**
AndyA 22:0dd9c1b5664a 235 * Allocate a new socket for a given netconn.
AndyA 22:0dd9c1b5664a 236 *
AndyA 22:0dd9c1b5664a 237 * @param newconn the netconn for which to allocate a socket
AndyA 22:0dd9c1b5664a 238 * @param accepted 1 if socket has been created by accept(),
AndyA 22:0dd9c1b5664a 239 * 0 if socket has been created by socket()
AndyA 22:0dd9c1b5664a 240 * @return the index of the new socket; -1 on error
AndyA 22:0dd9c1b5664a 241 */
AndyA 22:0dd9c1b5664a 242 static int
AndyA 22:0dd9c1b5664a 243 alloc_socket(struct netconn *newconn, int accepted)
AndyA 22:0dd9c1b5664a 244 {
AndyA 22:0dd9c1b5664a 245 int i;
AndyA 22:0dd9c1b5664a 246 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 247
AndyA 22:0dd9c1b5664a 248 /* allocate a new socket identifier */
AndyA 22:0dd9c1b5664a 249 for (i = 0; i < NUM_SOCKETS; ++i) {
AndyA 22:0dd9c1b5664a 250 /* Protect socket array */
AndyA 22:0dd9c1b5664a 251 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 252 if (!sockets[i].conn) {
AndyA 22:0dd9c1b5664a 253 sockets[i].conn = newconn;
AndyA 22:0dd9c1b5664a 254 /* The socket is not yet known to anyone, so no need to protect
AndyA 22:0dd9c1b5664a 255 after having marked it as used. */
AndyA 22:0dd9c1b5664a 256 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 257 sockets[i].lastdata = NULL;
AndyA 22:0dd9c1b5664a 258 sockets[i].lastoffset = 0;
AndyA 22:0dd9c1b5664a 259 sockets[i].rcvevent = 0;
AndyA 22:0dd9c1b5664a 260 /* TCP sendbuf is empty, but the socket is not yet writable until connected
AndyA 22:0dd9c1b5664a 261 * (unless it has been created by accept()). */
AndyA 22:0dd9c1b5664a 262 sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
AndyA 22:0dd9c1b5664a 263 sockets[i].errevent = 0;
AndyA 22:0dd9c1b5664a 264 sockets[i].err = 0;
AndyA 22:0dd9c1b5664a 265 sockets[i].select_waiting = 0;
AndyA 22:0dd9c1b5664a 266 return i;
AndyA 22:0dd9c1b5664a 267 }
AndyA 22:0dd9c1b5664a 268 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 269 }
AndyA 22:0dd9c1b5664a 270 return -1;
AndyA 22:0dd9c1b5664a 271 }
AndyA 22:0dd9c1b5664a 272
AndyA 22:0dd9c1b5664a 273 /** Free a socket. The socket's netconn must have been
AndyA 22:0dd9c1b5664a 274 * delete before!
AndyA 22:0dd9c1b5664a 275 *
AndyA 22:0dd9c1b5664a 276 * @param sock the socket to free
AndyA 22:0dd9c1b5664a 277 * @param is_tcp != 0 for TCP sockets, used to free lastdata
AndyA 22:0dd9c1b5664a 278 */
AndyA 22:0dd9c1b5664a 279 static void
AndyA 22:0dd9c1b5664a 280 free_socket(struct lwip_sock *sock, int is_tcp)
AndyA 22:0dd9c1b5664a 281 {
AndyA 22:0dd9c1b5664a 282 void *lastdata;
AndyA 22:0dd9c1b5664a 283 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 284
AndyA 22:0dd9c1b5664a 285 lastdata = sock->lastdata;
AndyA 22:0dd9c1b5664a 286 sock->lastdata = NULL;
AndyA 22:0dd9c1b5664a 287 sock->lastoffset = 0;
AndyA 22:0dd9c1b5664a 288 sock->err = 0;
AndyA 22:0dd9c1b5664a 289
AndyA 22:0dd9c1b5664a 290 /* Protect socket array */
AndyA 22:0dd9c1b5664a 291 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 292 sock->conn = NULL;
AndyA 22:0dd9c1b5664a 293 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 294 /* don't use 'sock' after this line, as another task might have allocated it */
AndyA 22:0dd9c1b5664a 295
AndyA 22:0dd9c1b5664a 296 if (lastdata != NULL) {
AndyA 22:0dd9c1b5664a 297 if (is_tcp) {
AndyA 22:0dd9c1b5664a 298 pbuf_free((struct pbuf *)lastdata);
AndyA 22:0dd9c1b5664a 299 } else {
AndyA 22:0dd9c1b5664a 300 netbuf_delete((struct netbuf *)lastdata);
AndyA 22:0dd9c1b5664a 301 }
AndyA 22:0dd9c1b5664a 302 }
AndyA 22:0dd9c1b5664a 303 }
AndyA 22:0dd9c1b5664a 304
AndyA 22:0dd9c1b5664a 305 /* Below this, the well-known socket functions are implemented.
AndyA 22:0dd9c1b5664a 306 * Use google.com or opengroup.org to get a good description :-)
AndyA 22:0dd9c1b5664a 307 *
AndyA 22:0dd9c1b5664a 308 * Exceptions are documented!
AndyA 22:0dd9c1b5664a 309 */
AndyA 22:0dd9c1b5664a 310
AndyA 22:0dd9c1b5664a 311 int
AndyA 22:0dd9c1b5664a 312 lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
AndyA 22:0dd9c1b5664a 313 {
AndyA 22:0dd9c1b5664a 314 struct lwip_sock *sock, *nsock;
AndyA 22:0dd9c1b5664a 315 struct netconn *newconn;
AndyA 22:0dd9c1b5664a 316 ip_addr_t naddr;
AndyA 22:0dd9c1b5664a 317 u16_t port;
AndyA 22:0dd9c1b5664a 318 int newsock;
AndyA 22:0dd9c1b5664a 319 struct sockaddr_in sin;
AndyA 22:0dd9c1b5664a 320 err_t err;
AndyA 22:0dd9c1b5664a 321 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 322
AndyA 22:0dd9c1b5664a 323 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
AndyA 22:0dd9c1b5664a 324 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 325 if (!sock) {
AndyA 22:0dd9c1b5664a 326 return -1;
AndyA 22:0dd9c1b5664a 327 }
AndyA 22:0dd9c1b5664a 328
AndyA 22:0dd9c1b5664a 329 if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
AndyA 22:0dd9c1b5664a 330 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
AndyA 22:0dd9c1b5664a 331 sock_set_errno(sock, EWOULDBLOCK);
AndyA 22:0dd9c1b5664a 332 return -1;
AndyA 22:0dd9c1b5664a 333 }
AndyA 22:0dd9c1b5664a 334
AndyA 22:0dd9c1b5664a 335 /* wait for a new connection */
AndyA 22:0dd9c1b5664a 336 err = netconn_accept(sock->conn, &newconn);
AndyA 22:0dd9c1b5664a 337 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 338 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
AndyA 22:0dd9c1b5664a 339 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 340 return -1;
AndyA 22:0dd9c1b5664a 341 }
AndyA 22:0dd9c1b5664a 342 LWIP_ASSERT("newconn != NULL", newconn != NULL);
AndyA 22:0dd9c1b5664a 343 /* Prevent automatic window updates, we do this on our own! */
AndyA 22:0dd9c1b5664a 344 netconn_set_noautorecved(newconn, 1);
AndyA 22:0dd9c1b5664a 345
AndyA 22:0dd9c1b5664a 346 /* get the IP address and port of the remote host */
AndyA 22:0dd9c1b5664a 347 err = netconn_peer(newconn, &naddr, &port);
AndyA 22:0dd9c1b5664a 348 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 349 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
AndyA 22:0dd9c1b5664a 350 netconn_delete(newconn);
AndyA 22:0dd9c1b5664a 351 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 352 return -1;
AndyA 22:0dd9c1b5664a 353 }
AndyA 22:0dd9c1b5664a 354
AndyA 22:0dd9c1b5664a 355 /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
AndyA 22:0dd9c1b5664a 356 * not be NULL if addr is valid.
AndyA 22:0dd9c1b5664a 357 */
AndyA 22:0dd9c1b5664a 358 if (NULL != addr) {
AndyA 22:0dd9c1b5664a 359 LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
AndyA 22:0dd9c1b5664a 360 memset(&sin, 0, sizeof(sin));
AndyA 22:0dd9c1b5664a 361 sin.sin_len = sizeof(sin);
AndyA 22:0dd9c1b5664a 362 sin.sin_family = AF_INET;
AndyA 22:0dd9c1b5664a 363 sin.sin_port = htons(port);
AndyA 22:0dd9c1b5664a 364 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
AndyA 22:0dd9c1b5664a 365
AndyA 22:0dd9c1b5664a 366 if (*addrlen > sizeof(sin))
AndyA 22:0dd9c1b5664a 367 *addrlen = sizeof(sin);
AndyA 22:0dd9c1b5664a 368
AndyA 22:0dd9c1b5664a 369 MEMCPY(addr, &sin, *addrlen);
AndyA 22:0dd9c1b5664a 370 }
AndyA 22:0dd9c1b5664a 371
AndyA 22:0dd9c1b5664a 372 newsock = alloc_socket(newconn, 1);
AndyA 22:0dd9c1b5664a 373 if (newsock == -1) {
AndyA 22:0dd9c1b5664a 374 netconn_delete(newconn);
AndyA 22:0dd9c1b5664a 375 sock_set_errno(sock, ENFILE);
AndyA 22:0dd9c1b5664a 376 return -1;
AndyA 22:0dd9c1b5664a 377 }
AndyA 22:0dd9c1b5664a 378 LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
AndyA 22:0dd9c1b5664a 379 LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
AndyA 22:0dd9c1b5664a 380 nsock = &sockets[newsock];
AndyA 22:0dd9c1b5664a 381
AndyA 22:0dd9c1b5664a 382 /* See event_callback: If data comes in right away after an accept, even
AndyA 22:0dd9c1b5664a 383 * though the server task might not have created a new socket yet.
AndyA 22:0dd9c1b5664a 384 * In that case, newconn->socket is counted down (newconn->socket--),
AndyA 22:0dd9c1b5664a 385 * so nsock->rcvevent is >= 1 here!
AndyA 22:0dd9c1b5664a 386 */
AndyA 22:0dd9c1b5664a 387 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 388 nsock->rcvevent += (s16_t)(-1 - newconn->socket);
AndyA 22:0dd9c1b5664a 389 newconn->socket = newsock;
AndyA 22:0dd9c1b5664a 390 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 391
AndyA 22:0dd9c1b5664a 392 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
AndyA 22:0dd9c1b5664a 393 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
AndyA 22:0dd9c1b5664a 394 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
AndyA 22:0dd9c1b5664a 395
AndyA 22:0dd9c1b5664a 396 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 397 return newsock;
AndyA 22:0dd9c1b5664a 398 }
AndyA 22:0dd9c1b5664a 399
AndyA 22:0dd9c1b5664a 400 int
AndyA 22:0dd9c1b5664a 401 lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
AndyA 22:0dd9c1b5664a 402 {
AndyA 22:0dd9c1b5664a 403 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 404 ip_addr_t local_addr;
AndyA 22:0dd9c1b5664a 405 u16_t local_port;
AndyA 22:0dd9c1b5664a 406 err_t err;
AndyA 22:0dd9c1b5664a 407 const struct sockaddr_in *name_in;
AndyA 22:0dd9c1b5664a 408
AndyA 22:0dd9c1b5664a 409 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 410 if (!sock) {
AndyA 22:0dd9c1b5664a 411 return -1;
AndyA 22:0dd9c1b5664a 412 }
AndyA 22:0dd9c1b5664a 413
AndyA 22:0dd9c1b5664a 414 /* check size, familiy and alignment of 'name' */
AndyA 22:0dd9c1b5664a 415 LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
AndyA 22:0dd9c1b5664a 416 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
AndyA 22:0dd9c1b5664a 417 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AndyA 22:0dd9c1b5664a 418 name_in = (const struct sockaddr_in *)(void*)name;
AndyA 22:0dd9c1b5664a 419
AndyA 22:0dd9c1b5664a 420 inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
AndyA 22:0dd9c1b5664a 421 local_port = name_in->sin_port;
AndyA 22:0dd9c1b5664a 422
AndyA 22:0dd9c1b5664a 423 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
AndyA 22:0dd9c1b5664a 424 ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
AndyA 22:0dd9c1b5664a 425 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
AndyA 22:0dd9c1b5664a 426
AndyA 22:0dd9c1b5664a 427 err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
AndyA 22:0dd9c1b5664a 428
AndyA 22:0dd9c1b5664a 429 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 430 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
AndyA 22:0dd9c1b5664a 431 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 432 return -1;
AndyA 22:0dd9c1b5664a 433 }
AndyA 22:0dd9c1b5664a 434
AndyA 22:0dd9c1b5664a 435 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
AndyA 22:0dd9c1b5664a 436 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 437 return 0;
AndyA 22:0dd9c1b5664a 438 }
AndyA 22:0dd9c1b5664a 439
AndyA 22:0dd9c1b5664a 440 int
AndyA 22:0dd9c1b5664a 441 lwip_close(int s)
AndyA 22:0dd9c1b5664a 442 {
AndyA 22:0dd9c1b5664a 443 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 444 int is_tcp = 0;
AndyA 22:0dd9c1b5664a 445
AndyA 22:0dd9c1b5664a 446 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
AndyA 22:0dd9c1b5664a 447
AndyA 22:0dd9c1b5664a 448 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 449 if (!sock) {
AndyA 22:0dd9c1b5664a 450 return -1;
AndyA 22:0dd9c1b5664a 451 }
AndyA 22:0dd9c1b5664a 452
AndyA 22:0dd9c1b5664a 453 if(sock->conn != NULL) {
AndyA 22:0dd9c1b5664a 454 is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
AndyA 22:0dd9c1b5664a 455 } else {
AndyA 22:0dd9c1b5664a 456 LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
AndyA 22:0dd9c1b5664a 457 }
AndyA 22:0dd9c1b5664a 458
AndyA 22:0dd9c1b5664a 459 netconn_delete(sock->conn);
AndyA 22:0dd9c1b5664a 460
AndyA 22:0dd9c1b5664a 461 free_socket(sock, is_tcp);
AndyA 22:0dd9c1b5664a 462 set_errno(0);
AndyA 22:0dd9c1b5664a 463 return 0;
AndyA 22:0dd9c1b5664a 464 }
AndyA 22:0dd9c1b5664a 465
AndyA 22:0dd9c1b5664a 466 int
AndyA 22:0dd9c1b5664a 467 lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
AndyA 22:0dd9c1b5664a 468 {
AndyA 22:0dd9c1b5664a 469 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 470 err_t err;
AndyA 22:0dd9c1b5664a 471 const struct sockaddr_in *name_in;
AndyA 22:0dd9c1b5664a 472
AndyA 22:0dd9c1b5664a 473 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 474 if (!sock) {
AndyA 22:0dd9c1b5664a 475 return -1;
AndyA 22:0dd9c1b5664a 476 }
AndyA 22:0dd9c1b5664a 477
AndyA 22:0dd9c1b5664a 478 /* check size, familiy and alignment of 'name' */
AndyA 22:0dd9c1b5664a 479 LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
AndyA 22:0dd9c1b5664a 480 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
AndyA 22:0dd9c1b5664a 481 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AndyA 22:0dd9c1b5664a 482 name_in = (const struct sockaddr_in *)(void*)name;
AndyA 22:0dd9c1b5664a 483
AndyA 22:0dd9c1b5664a 484 if (name_in->sin_family == AF_UNSPEC) {
AndyA 22:0dd9c1b5664a 485 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
AndyA 22:0dd9c1b5664a 486 err = netconn_disconnect(sock->conn);
AndyA 22:0dd9c1b5664a 487 } else {
AndyA 22:0dd9c1b5664a 488 ip_addr_t remote_addr;
AndyA 22:0dd9c1b5664a 489 u16_t remote_port;
AndyA 22:0dd9c1b5664a 490
AndyA 22:0dd9c1b5664a 491 inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
AndyA 22:0dd9c1b5664a 492 remote_port = name_in->sin_port;
AndyA 22:0dd9c1b5664a 493
AndyA 22:0dd9c1b5664a 494 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
AndyA 22:0dd9c1b5664a 495 ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
AndyA 22:0dd9c1b5664a 496 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
AndyA 22:0dd9c1b5664a 497
AndyA 22:0dd9c1b5664a 498 err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
AndyA 22:0dd9c1b5664a 499 }
AndyA 22:0dd9c1b5664a 500
AndyA 22:0dd9c1b5664a 501 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 502 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
AndyA 22:0dd9c1b5664a 503 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 504 return -1;
AndyA 22:0dd9c1b5664a 505 }
AndyA 22:0dd9c1b5664a 506
AndyA 22:0dd9c1b5664a 507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
AndyA 22:0dd9c1b5664a 508 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 509 return 0;
AndyA 22:0dd9c1b5664a 510 }
AndyA 22:0dd9c1b5664a 511
AndyA 22:0dd9c1b5664a 512 /**
AndyA 22:0dd9c1b5664a 513 * Set a socket into listen mode.
AndyA 22:0dd9c1b5664a 514 * The socket may not have been used for another connection previously.
AndyA 22:0dd9c1b5664a 515 *
AndyA 22:0dd9c1b5664a 516 * @param s the socket to set to listening mode
AndyA 22:0dd9c1b5664a 517 * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
AndyA 22:0dd9c1b5664a 518 * @return 0 on success, non-zero on failure
AndyA 22:0dd9c1b5664a 519 */
AndyA 22:0dd9c1b5664a 520 int
AndyA 22:0dd9c1b5664a 521 lwip_listen(int s, int backlog)
AndyA 22:0dd9c1b5664a 522 {
AndyA 22:0dd9c1b5664a 523 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 524 err_t err;
AndyA 22:0dd9c1b5664a 525
AndyA 22:0dd9c1b5664a 526 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
AndyA 22:0dd9c1b5664a 527
AndyA 22:0dd9c1b5664a 528 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 529 if (!sock) {
AndyA 22:0dd9c1b5664a 530 return -1;
AndyA 22:0dd9c1b5664a 531 }
AndyA 22:0dd9c1b5664a 532
AndyA 22:0dd9c1b5664a 533 /* limit the "backlog" parameter to fit in an u8_t */
AndyA 22:0dd9c1b5664a 534 backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
AndyA 22:0dd9c1b5664a 535
AndyA 22:0dd9c1b5664a 536 err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
AndyA 22:0dd9c1b5664a 537
AndyA 22:0dd9c1b5664a 538 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 539 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
AndyA 22:0dd9c1b5664a 540 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 541 return -1;
AndyA 22:0dd9c1b5664a 542 }
AndyA 22:0dd9c1b5664a 543
AndyA 22:0dd9c1b5664a 544 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 545 return 0;
AndyA 22:0dd9c1b5664a 546 }
AndyA 22:0dd9c1b5664a 547
AndyA 22:0dd9c1b5664a 548 int
AndyA 22:0dd9c1b5664a 549 lwip_recvfrom(int s, void *mem, size_t len, int flags,
AndyA 22:0dd9c1b5664a 550 struct sockaddr *from, socklen_t *fromlen)
AndyA 22:0dd9c1b5664a 551 {
AndyA 22:0dd9c1b5664a 552 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 553 void *buf = NULL;
AndyA 22:0dd9c1b5664a 554 struct pbuf *p;
AndyA 22:0dd9c1b5664a 555 u16_t buflen, copylen;
AndyA 22:0dd9c1b5664a 556 int off = 0;
AndyA 22:0dd9c1b5664a 557 ip_addr_t *addr;
AndyA 22:0dd9c1b5664a 558 u16_t port;
AndyA 22:0dd9c1b5664a 559 u8_t done = 0;
AndyA 22:0dd9c1b5664a 560 err_t err;
AndyA 22:0dd9c1b5664a 561
AndyA 22:0dd9c1b5664a 562 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
AndyA 22:0dd9c1b5664a 563 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 564 if (!sock) {
AndyA 22:0dd9c1b5664a 565 return -1;
AndyA 22:0dd9c1b5664a 566 }
AndyA 22:0dd9c1b5664a 567
AndyA 22:0dd9c1b5664a 568 do {
AndyA 22:0dd9c1b5664a 569 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
AndyA 22:0dd9c1b5664a 570 /* Check if there is data left from the last recv operation. */
AndyA 22:0dd9c1b5664a 571 if (sock->lastdata) {
AndyA 22:0dd9c1b5664a 572 buf = sock->lastdata;
AndyA 22:0dd9c1b5664a 573 } else {
AndyA 22:0dd9c1b5664a 574 /* If this is non-blocking call, then check first */
AndyA 22:0dd9c1b5664a 575 if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
AndyA 22:0dd9c1b5664a 576 (sock->rcvevent <= 0)) {
AndyA 22:0dd9c1b5664a 577 if (off > 0) {
AndyA 22:0dd9c1b5664a 578 /* update receive window */
AndyA 22:0dd9c1b5664a 579 netconn_recved(sock->conn, (u32_t)off);
AndyA 22:0dd9c1b5664a 580 /* already received data, return that */
AndyA 22:0dd9c1b5664a 581 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 582 return off;
AndyA 22:0dd9c1b5664a 583 }
AndyA 22:0dd9c1b5664a 584 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
AndyA 22:0dd9c1b5664a 585 sock_set_errno(sock, EWOULDBLOCK);
AndyA 22:0dd9c1b5664a 586 return -1;
AndyA 22:0dd9c1b5664a 587 }
AndyA 22:0dd9c1b5664a 588
AndyA 22:0dd9c1b5664a 589 /* No data was left from the previous operation, so we try to get
AndyA 22:0dd9c1b5664a 590 some from the network. */
AndyA 22:0dd9c1b5664a 591 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 592 err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
AndyA 22:0dd9c1b5664a 593 } else {
AndyA 22:0dd9c1b5664a 594 err = netconn_recv(sock->conn, (struct netbuf **)&buf);
AndyA 22:0dd9c1b5664a 595 }
AndyA 22:0dd9c1b5664a 596 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
AndyA 22:0dd9c1b5664a 597 err, buf));
AndyA 22:0dd9c1b5664a 598
AndyA 22:0dd9c1b5664a 599 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 600 if (off > 0) {
AndyA 22:0dd9c1b5664a 601 /* update receive window */
AndyA 22:0dd9c1b5664a 602 netconn_recved(sock->conn, (u32_t)off);
AndyA 22:0dd9c1b5664a 603 /* already received data, return that */
AndyA 22:0dd9c1b5664a 604 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 605 return off;
AndyA 22:0dd9c1b5664a 606 }
AndyA 22:0dd9c1b5664a 607 /* We should really do some error checking here. */
AndyA 22:0dd9c1b5664a 608 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
AndyA 22:0dd9c1b5664a 609 s, lwip_strerr(err)));
AndyA 22:0dd9c1b5664a 610 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 611 if (err == ERR_CLSD) {
AndyA 22:0dd9c1b5664a 612 return 0;
AndyA 22:0dd9c1b5664a 613 } else {
AndyA 22:0dd9c1b5664a 614 return -1;
AndyA 22:0dd9c1b5664a 615 }
AndyA 22:0dd9c1b5664a 616 }
AndyA 22:0dd9c1b5664a 617 LWIP_ASSERT("buf != NULL", buf != NULL);
AndyA 22:0dd9c1b5664a 618 sock->lastdata = buf;
AndyA 22:0dd9c1b5664a 619 }
AndyA 22:0dd9c1b5664a 620
AndyA 22:0dd9c1b5664a 621 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 622 p = (struct pbuf *)buf;
AndyA 22:0dd9c1b5664a 623 } else {
AndyA 22:0dd9c1b5664a 624 p = ((struct netbuf *)buf)->p;
AndyA 22:0dd9c1b5664a 625 }
AndyA 22:0dd9c1b5664a 626 buflen = p->tot_len;
AndyA 22:0dd9c1b5664a 627 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
AndyA 22:0dd9c1b5664a 628 buflen, len, off, sock->lastoffset));
AndyA 22:0dd9c1b5664a 629
AndyA 22:0dd9c1b5664a 630 buflen -= sock->lastoffset;
AndyA 22:0dd9c1b5664a 631
AndyA 22:0dd9c1b5664a 632 if (len > buflen) {
AndyA 22:0dd9c1b5664a 633 copylen = buflen;
AndyA 22:0dd9c1b5664a 634 } else {
AndyA 22:0dd9c1b5664a 635 copylen = (u16_t)len;
AndyA 22:0dd9c1b5664a 636 }
AndyA 22:0dd9c1b5664a 637
AndyA 22:0dd9c1b5664a 638 /* copy the contents of the received buffer into
AndyA 22:0dd9c1b5664a 639 the supplied memory pointer mem */
AndyA 22:0dd9c1b5664a 640 pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
AndyA 22:0dd9c1b5664a 641
AndyA 22:0dd9c1b5664a 642 off += copylen;
AndyA 22:0dd9c1b5664a 643
AndyA 22:0dd9c1b5664a 644 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 645 LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
AndyA 22:0dd9c1b5664a 646 len -= copylen;
AndyA 22:0dd9c1b5664a 647 if ( (len <= 0) ||
AndyA 22:0dd9c1b5664a 648 (p->flags & PBUF_FLAG_PUSH) ||
AndyA 22:0dd9c1b5664a 649 (sock->rcvevent <= 0) ||
AndyA 22:0dd9c1b5664a 650 ((flags & MSG_PEEK)!=0)) {
AndyA 22:0dd9c1b5664a 651 done = 1;
AndyA 22:0dd9c1b5664a 652 }
AndyA 22:0dd9c1b5664a 653 } else {
AndyA 22:0dd9c1b5664a 654 done = 1;
AndyA 22:0dd9c1b5664a 655 }
AndyA 22:0dd9c1b5664a 656
AndyA 22:0dd9c1b5664a 657 /* Check to see from where the data was.*/
AndyA 22:0dd9c1b5664a 658 if (done) {
AndyA 22:0dd9c1b5664a 659 ip_addr_t fromaddr;
AndyA 22:0dd9c1b5664a 660 if (from && fromlen) {
AndyA 22:0dd9c1b5664a 661 struct sockaddr_in sin;
AndyA 22:0dd9c1b5664a 662
AndyA 22:0dd9c1b5664a 663 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 664 addr = &fromaddr;
AndyA 22:0dd9c1b5664a 665 netconn_getaddr(sock->conn, addr, &port, 0);
AndyA 22:0dd9c1b5664a 666 } else {
AndyA 22:0dd9c1b5664a 667 addr = netbuf_fromaddr((struct netbuf *)buf);
AndyA 22:0dd9c1b5664a 668 port = netbuf_fromport((struct netbuf *)buf);
AndyA 22:0dd9c1b5664a 669 }
AndyA 22:0dd9c1b5664a 670
AndyA 22:0dd9c1b5664a 671 memset(&sin, 0, sizeof(sin));
AndyA 22:0dd9c1b5664a 672 sin.sin_len = sizeof(sin);
AndyA 22:0dd9c1b5664a 673 sin.sin_family = AF_INET;
AndyA 22:0dd9c1b5664a 674 sin.sin_port = htons(port);
AndyA 22:0dd9c1b5664a 675 inet_addr_from_ipaddr(&sin.sin_addr, addr);
AndyA 22:0dd9c1b5664a 676
AndyA 22:0dd9c1b5664a 677 if (*fromlen > sizeof(sin)) {
AndyA 22:0dd9c1b5664a 678 *fromlen = sizeof(sin);
AndyA 22:0dd9c1b5664a 679 }
AndyA 22:0dd9c1b5664a 680
AndyA 22:0dd9c1b5664a 681 MEMCPY(from, &sin, *fromlen);
AndyA 22:0dd9c1b5664a 682
AndyA 22:0dd9c1b5664a 683 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
AndyA 22:0dd9c1b5664a 684 ip_addr_debug_print(SOCKETS_DEBUG, addr);
AndyA 22:0dd9c1b5664a 685 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
AndyA 22:0dd9c1b5664a 686 } else {
AndyA 22:0dd9c1b5664a 687 #if SOCKETS_DEBUG
AndyA 22:0dd9c1b5664a 688 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 689 addr = &fromaddr;
AndyA 22:0dd9c1b5664a 690 netconn_getaddr(sock->conn, addr, &port, 0);
AndyA 22:0dd9c1b5664a 691 } else {
AndyA 22:0dd9c1b5664a 692 addr = netbuf_fromaddr((struct netbuf *)buf);
AndyA 22:0dd9c1b5664a 693 port = netbuf_fromport((struct netbuf *)buf);
AndyA 22:0dd9c1b5664a 694 }
AndyA 22:0dd9c1b5664a 695
AndyA 22:0dd9c1b5664a 696 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
AndyA 22:0dd9c1b5664a 697 ip_addr_debug_print(SOCKETS_DEBUG, addr);
AndyA 22:0dd9c1b5664a 698 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
AndyA 22:0dd9c1b5664a 699 #endif /* SOCKETS_DEBUG */
AndyA 22:0dd9c1b5664a 700 }
AndyA 22:0dd9c1b5664a 701 }
AndyA 22:0dd9c1b5664a 702
AndyA 22:0dd9c1b5664a 703 /* If we don't peek the incoming message... */
AndyA 22:0dd9c1b5664a 704 if ((flags & MSG_PEEK) == 0) {
AndyA 22:0dd9c1b5664a 705 /* If this is a TCP socket, check if there is data left in the
AndyA 22:0dd9c1b5664a 706 buffer. If so, it should be saved in the sock structure for next
AndyA 22:0dd9c1b5664a 707 time around. */
AndyA 22:0dd9c1b5664a 708 if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
AndyA 22:0dd9c1b5664a 709 sock->lastdata = buf;
AndyA 22:0dd9c1b5664a 710 sock->lastoffset += copylen;
AndyA 22:0dd9c1b5664a 711 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
AndyA 22:0dd9c1b5664a 712 } else {
AndyA 22:0dd9c1b5664a 713 sock->lastdata = NULL;
AndyA 22:0dd9c1b5664a 714 sock->lastoffset = 0;
AndyA 22:0dd9c1b5664a 715 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
AndyA 22:0dd9c1b5664a 716 if (netconn_type(sock->conn) == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 717 pbuf_free((struct pbuf *)buf);
AndyA 22:0dd9c1b5664a 718 } else {
AndyA 22:0dd9c1b5664a 719 netbuf_delete((struct netbuf *)buf);
AndyA 22:0dd9c1b5664a 720 }
AndyA 22:0dd9c1b5664a 721 }
AndyA 22:0dd9c1b5664a 722 }
AndyA 22:0dd9c1b5664a 723 } while (!done);
AndyA 22:0dd9c1b5664a 724
AndyA 22:0dd9c1b5664a 725 if (off > 0) {
AndyA 22:0dd9c1b5664a 726 /* update receive window */
AndyA 22:0dd9c1b5664a 727 netconn_recved(sock->conn, (u32_t)off);
AndyA 22:0dd9c1b5664a 728 }
AndyA 22:0dd9c1b5664a 729 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 730 return off;
AndyA 22:0dd9c1b5664a 731 }
AndyA 22:0dd9c1b5664a 732
AndyA 22:0dd9c1b5664a 733 int
AndyA 22:0dd9c1b5664a 734 lwip_read(int s, void *mem, size_t len)
AndyA 22:0dd9c1b5664a 735 {
AndyA 22:0dd9c1b5664a 736 return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
AndyA 22:0dd9c1b5664a 737 }
AndyA 22:0dd9c1b5664a 738
AndyA 22:0dd9c1b5664a 739 int
AndyA 22:0dd9c1b5664a 740 lwip_recv(int s, void *mem, size_t len, int flags)
AndyA 22:0dd9c1b5664a 741 {
AndyA 22:0dd9c1b5664a 742 return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
AndyA 22:0dd9c1b5664a 743 }
AndyA 22:0dd9c1b5664a 744
AndyA 22:0dd9c1b5664a 745 int
AndyA 22:0dd9c1b5664a 746 lwip_send(int s, const void *data, size_t size, int flags)
AndyA 22:0dd9c1b5664a 747 {
AndyA 22:0dd9c1b5664a 748 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 749 err_t err;
AndyA 22:0dd9c1b5664a 750 u8_t write_flags;
AndyA 22:0dd9c1b5664a 751
AndyA 22:0dd9c1b5664a 752 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
AndyA 22:0dd9c1b5664a 753 s, data, size, flags));
AndyA 22:0dd9c1b5664a 754
AndyA 22:0dd9c1b5664a 755 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 756 if (!sock) {
AndyA 22:0dd9c1b5664a 757 return -1;
AndyA 22:0dd9c1b5664a 758 }
AndyA 22:0dd9c1b5664a 759
AndyA 22:0dd9c1b5664a 760 if (sock->conn->type != NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 761 #if (LWIP_UDP || LWIP_RAW)
AndyA 22:0dd9c1b5664a 762 return lwip_sendto(s, data, size, flags, NULL, 0);
AndyA 22:0dd9c1b5664a 763 #else /* (LWIP_UDP || LWIP_RAW) */
AndyA 22:0dd9c1b5664a 764 sock_set_errno(sock, err_to_errno(ERR_ARG));
AndyA 22:0dd9c1b5664a 765 return -1;
AndyA 22:0dd9c1b5664a 766 #endif /* (LWIP_UDP || LWIP_RAW) */
AndyA 22:0dd9c1b5664a 767 }
AndyA 22:0dd9c1b5664a 768
AndyA 22:0dd9c1b5664a 769 if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
AndyA 22:0dd9c1b5664a 770 if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
AndyA 22:0dd9c1b5664a 771 /* too much data to ever send nonblocking! */
AndyA 22:0dd9c1b5664a 772 sock_set_errno(sock, EMSGSIZE);
AndyA 22:0dd9c1b5664a 773 return -1;
AndyA 22:0dd9c1b5664a 774 }
AndyA 22:0dd9c1b5664a 775 }
AndyA 22:0dd9c1b5664a 776
AndyA 22:0dd9c1b5664a 777 write_flags = NETCONN_COPY |
AndyA 22:0dd9c1b5664a 778 ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
AndyA 22:0dd9c1b5664a 779 ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
AndyA 22:0dd9c1b5664a 780 err = netconn_write(sock->conn, data, size, write_flags);
AndyA 22:0dd9c1b5664a 781
AndyA 22:0dd9c1b5664a 782 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
AndyA 22:0dd9c1b5664a 783 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 784 return (err == ERR_OK ? (int)size : -1);
AndyA 22:0dd9c1b5664a 785 }
AndyA 22:0dd9c1b5664a 786
AndyA 22:0dd9c1b5664a 787 int
AndyA 22:0dd9c1b5664a 788 lwip_sendto(int s, const void *data, size_t size, int flags,
AndyA 22:0dd9c1b5664a 789 const struct sockaddr *to, socklen_t tolen)
AndyA 22:0dd9c1b5664a 790 {
AndyA 22:0dd9c1b5664a 791 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 792 err_t err;
AndyA 22:0dd9c1b5664a 793 u16_t short_size;
AndyA 22:0dd9c1b5664a 794 const struct sockaddr_in *to_in;
AndyA 22:0dd9c1b5664a 795 u16_t remote_port;
AndyA 22:0dd9c1b5664a 796 #if !LWIP_TCPIP_CORE_LOCKING
AndyA 22:0dd9c1b5664a 797 struct netbuf buf;
AndyA 22:0dd9c1b5664a 798 #endif
AndyA 22:0dd9c1b5664a 799
AndyA 22:0dd9c1b5664a 800 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 801 if (!sock) {
AndyA 22:0dd9c1b5664a 802 return -1;
AndyA 22:0dd9c1b5664a 803 }
AndyA 22:0dd9c1b5664a 804
AndyA 22:0dd9c1b5664a 805 if (sock->conn->type == NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 806 #if LWIP_TCP
AndyA 22:0dd9c1b5664a 807 return lwip_send(s, data, size, flags);
AndyA 22:0dd9c1b5664a 808 #else /* LWIP_TCP */
AndyA 22:0dd9c1b5664a 809 LWIP_UNUSED_ARG(flags);
AndyA 22:0dd9c1b5664a 810 sock_set_errno(sock, err_to_errno(ERR_ARG));
AndyA 22:0dd9c1b5664a 811 return -1;
AndyA 22:0dd9c1b5664a 812 #endif /* LWIP_TCP */
AndyA 22:0dd9c1b5664a 813 }
AndyA 22:0dd9c1b5664a 814
AndyA 22:0dd9c1b5664a 815 /* @todo: split into multiple sendto's? */
AndyA 22:0dd9c1b5664a 816 LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
AndyA 22:0dd9c1b5664a 817 short_size = (u16_t)size;
AndyA 22:0dd9c1b5664a 818 LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
AndyA 22:0dd9c1b5664a 819 ((tolen == sizeof(struct sockaddr_in)) &&
AndyA 22:0dd9c1b5664a 820 ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
AndyA 22:0dd9c1b5664a 821 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AndyA 22:0dd9c1b5664a 822 to_in = (const struct sockaddr_in *)(void*)to;
AndyA 22:0dd9c1b5664a 823
AndyA 22:0dd9c1b5664a 824 #if LWIP_TCPIP_CORE_LOCKING
AndyA 22:0dd9c1b5664a 825 /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
AndyA 22:0dd9c1b5664a 826 {
AndyA 22:0dd9c1b5664a 827 struct pbuf* p;
AndyA 22:0dd9c1b5664a 828 ip_addr_t *remote_addr;
AndyA 22:0dd9c1b5664a 829
AndyA 22:0dd9c1b5664a 830 #if LWIP_NETIF_TX_SINGLE_PBUF
AndyA 22:0dd9c1b5664a 831 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
AndyA 22:0dd9c1b5664a 832 if (p != NULL) {
AndyA 22:0dd9c1b5664a 833 #if LWIP_CHECKSUM_ON_COPY
AndyA 22:0dd9c1b5664a 834 u16_t chksum = 0;
AndyA 22:0dd9c1b5664a 835 if (sock->conn->type != NETCONN_RAW) {
AndyA 22:0dd9c1b5664a 836 chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
AndyA 22:0dd9c1b5664a 837 } else
AndyA 22:0dd9c1b5664a 838 #endif /* LWIP_CHECKSUM_ON_COPY */
AndyA 22:0dd9c1b5664a 839 MEMCPY(p->payload, data, size);
AndyA 22:0dd9c1b5664a 840 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 841 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
AndyA 22:0dd9c1b5664a 842 if (p != NULL) {
AndyA 22:0dd9c1b5664a 843 p->payload = (void*)data;
AndyA 22:0dd9c1b5664a 844 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 845
AndyA 22:0dd9c1b5664a 846 if (to_in != NULL) {
AndyA 22:0dd9c1b5664a 847 inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
AndyA 22:0dd9c1b5664a 848 remote_port = ntohs(to_in->sin_port);
AndyA 22:0dd9c1b5664a 849 } else {
AndyA 22:0dd9c1b5664a 850 remote_addr = &sock->conn->pcb.raw->remote_ip;
AndyA 22:0dd9c1b5664a 851 if (sock->conn->type == NETCONN_RAW) {
AndyA 22:0dd9c1b5664a 852 remote_port = 0;
AndyA 22:0dd9c1b5664a 853 } else {
AndyA 22:0dd9c1b5664a 854 remote_port = sock->conn->pcb.udp->remote_port;
AndyA 22:0dd9c1b5664a 855 }
AndyA 22:0dd9c1b5664a 856 }
AndyA 22:0dd9c1b5664a 857
AndyA 22:0dd9c1b5664a 858 LOCK_TCPIP_CORE();
AndyA 22:0dd9c1b5664a 859 if (sock->conn->type == NETCONN_RAW) {
AndyA 22:0dd9c1b5664a 860 err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
AndyA 22:0dd9c1b5664a 861 } else {
AndyA 22:0dd9c1b5664a 862 #if LWIP_UDP
AndyA 22:0dd9c1b5664a 863 #if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
AndyA 22:0dd9c1b5664a 864 err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
AndyA 22:0dd9c1b5664a 865 remote_addr, remote_port, 1, chksum);
AndyA 22:0dd9c1b5664a 866 #else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 867 err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
AndyA 22:0dd9c1b5664a 868 remote_addr, remote_port);
AndyA 22:0dd9c1b5664a 869 #endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 870 #else /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 871 err = ERR_ARG;
AndyA 22:0dd9c1b5664a 872 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 873 }
AndyA 22:0dd9c1b5664a 874 UNLOCK_TCPIP_CORE();
AndyA 22:0dd9c1b5664a 875
AndyA 22:0dd9c1b5664a 876 pbuf_free(p);
AndyA 22:0dd9c1b5664a 877 } else {
AndyA 22:0dd9c1b5664a 878 err = ERR_MEM;
AndyA 22:0dd9c1b5664a 879 }
AndyA 22:0dd9c1b5664a 880 }
AndyA 22:0dd9c1b5664a 881 #else /* LWIP_TCPIP_CORE_LOCKING */
AndyA 22:0dd9c1b5664a 882 /* initialize a buffer */
AndyA 22:0dd9c1b5664a 883 buf.p = buf.ptr = NULL;
AndyA 22:0dd9c1b5664a 884 #if LWIP_CHECKSUM_ON_COPY
AndyA 22:0dd9c1b5664a 885 buf.flags = 0;
AndyA 22:0dd9c1b5664a 886 #endif /* LWIP_CHECKSUM_ON_COPY */
AndyA 22:0dd9c1b5664a 887 if (to) {
AndyA 22:0dd9c1b5664a 888 inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
AndyA 22:0dd9c1b5664a 889 remote_port = ntohs(to_in->sin_port);
AndyA 22:0dd9c1b5664a 890 netbuf_fromport(&buf) = remote_port;
AndyA 22:0dd9c1b5664a 891 } else {
AndyA 22:0dd9c1b5664a 892 remote_port = 0;
AndyA 22:0dd9c1b5664a 893 ip_addr_set_any(&buf.addr);
AndyA 22:0dd9c1b5664a 894 netbuf_fromport(&buf) = 0;
AndyA 22:0dd9c1b5664a 895 }
AndyA 22:0dd9c1b5664a 896
AndyA 22:0dd9c1b5664a 897 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
AndyA 22:0dd9c1b5664a 898 s, data, short_size, flags));
AndyA 22:0dd9c1b5664a 899 ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
AndyA 22:0dd9c1b5664a 900 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
AndyA 22:0dd9c1b5664a 901
AndyA 22:0dd9c1b5664a 902 /* make the buffer point to the data that should be sent */
AndyA 22:0dd9c1b5664a 903 #if LWIP_NETIF_TX_SINGLE_PBUF
AndyA 22:0dd9c1b5664a 904 /* Allocate a new netbuf and copy the data into it. */
AndyA 22:0dd9c1b5664a 905 if (netbuf_alloc(&buf, short_size) == NULL) {
AndyA 22:0dd9c1b5664a 906 err = ERR_MEM;
AndyA 22:0dd9c1b5664a 907 } else {
AndyA 22:0dd9c1b5664a 908 #if LWIP_CHECKSUM_ON_COPY
AndyA 22:0dd9c1b5664a 909 if (sock->conn->type != NETCONN_RAW) {
AndyA 22:0dd9c1b5664a 910 u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
AndyA 22:0dd9c1b5664a 911 netbuf_set_chksum(&buf, chksum);
AndyA 22:0dd9c1b5664a 912 err = ERR_OK;
AndyA 22:0dd9c1b5664a 913 } else
AndyA 22:0dd9c1b5664a 914 #endif /* LWIP_CHECKSUM_ON_COPY */
AndyA 22:0dd9c1b5664a 915 {
AndyA 22:0dd9c1b5664a 916 err = netbuf_take(&buf, data, short_size);
AndyA 22:0dd9c1b5664a 917 }
AndyA 22:0dd9c1b5664a 918 }
AndyA 22:0dd9c1b5664a 919 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 920 err = netbuf_ref(&buf, data, short_size);
AndyA 22:0dd9c1b5664a 921 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
AndyA 22:0dd9c1b5664a 922 if (err == ERR_OK) {
AndyA 22:0dd9c1b5664a 923 /* send the data */
AndyA 22:0dd9c1b5664a 924 err = netconn_send(sock->conn, &buf);
AndyA 22:0dd9c1b5664a 925 }
AndyA 22:0dd9c1b5664a 926
AndyA 22:0dd9c1b5664a 927 /* deallocated the buffer */
AndyA 22:0dd9c1b5664a 928 netbuf_free(&buf);
AndyA 22:0dd9c1b5664a 929 #endif /* LWIP_TCPIP_CORE_LOCKING */
AndyA 22:0dd9c1b5664a 930 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 931 return (err == ERR_OK ? short_size : -1);
AndyA 22:0dd9c1b5664a 932 }
AndyA 22:0dd9c1b5664a 933
AndyA 22:0dd9c1b5664a 934 int
AndyA 22:0dd9c1b5664a 935 lwip_socket(int domain, int type, int protocol)
AndyA 22:0dd9c1b5664a 936 {
AndyA 22:0dd9c1b5664a 937 struct netconn *conn;
AndyA 22:0dd9c1b5664a 938 int i;
AndyA 22:0dd9c1b5664a 939
AndyA 22:0dd9c1b5664a 940 LWIP_UNUSED_ARG(domain);
AndyA 22:0dd9c1b5664a 941
AndyA 22:0dd9c1b5664a 942 /* create a netconn */
AndyA 22:0dd9c1b5664a 943 switch (type) {
AndyA 22:0dd9c1b5664a 944 case SOCK_RAW:
AndyA 22:0dd9c1b5664a 945 conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
AndyA 22:0dd9c1b5664a 946 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
AndyA 22:0dd9c1b5664a 947 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AndyA 22:0dd9c1b5664a 948 break;
AndyA 22:0dd9c1b5664a 949 case SOCK_DGRAM:
AndyA 22:0dd9c1b5664a 950 conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
AndyA 22:0dd9c1b5664a 951 NETCONN_UDPLITE : NETCONN_UDP, event_callback);
AndyA 22:0dd9c1b5664a 952 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
AndyA 22:0dd9c1b5664a 953 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AndyA 22:0dd9c1b5664a 954 break;
AndyA 22:0dd9c1b5664a 955 case SOCK_STREAM:
AndyA 22:0dd9c1b5664a 956 conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
AndyA 22:0dd9c1b5664a 957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
AndyA 22:0dd9c1b5664a 958 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AndyA 22:0dd9c1b5664a 959 if (conn != NULL) {
AndyA 22:0dd9c1b5664a 960 /* Prevent automatic window updates, we do this on our own! */
AndyA 22:0dd9c1b5664a 961 netconn_set_noautorecved(conn, 1);
AndyA 22:0dd9c1b5664a 962 }
AndyA 22:0dd9c1b5664a 963 break;
AndyA 22:0dd9c1b5664a 964 default:
AndyA 22:0dd9c1b5664a 965 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
AndyA 22:0dd9c1b5664a 966 domain, type, protocol));
AndyA 22:0dd9c1b5664a 967 set_errno(EINVAL);
AndyA 22:0dd9c1b5664a 968 return -1;
AndyA 22:0dd9c1b5664a 969 }
AndyA 22:0dd9c1b5664a 970
AndyA 22:0dd9c1b5664a 971 if (!conn) {
AndyA 22:0dd9c1b5664a 972 LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
AndyA 22:0dd9c1b5664a 973 set_errno(ENOBUFS);
AndyA 22:0dd9c1b5664a 974 return -1;
AndyA 22:0dd9c1b5664a 975 }
AndyA 22:0dd9c1b5664a 976
AndyA 22:0dd9c1b5664a 977 i = alloc_socket(conn, 0);
AndyA 22:0dd9c1b5664a 978
AndyA 22:0dd9c1b5664a 979 if (i == -1) {
AndyA 22:0dd9c1b5664a 980 netconn_delete(conn);
AndyA 22:0dd9c1b5664a 981 set_errno(ENFILE);
AndyA 22:0dd9c1b5664a 982 return -1;
AndyA 22:0dd9c1b5664a 983 }
AndyA 22:0dd9c1b5664a 984 conn->socket = i;
AndyA 22:0dd9c1b5664a 985 LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
AndyA 22:0dd9c1b5664a 986 set_errno(0);
AndyA 22:0dd9c1b5664a 987 return i;
AndyA 22:0dd9c1b5664a 988 }
AndyA 22:0dd9c1b5664a 989
AndyA 22:0dd9c1b5664a 990 int
AndyA 22:0dd9c1b5664a 991 lwip_write(int s, const void *data, size_t size)
AndyA 22:0dd9c1b5664a 992 {
AndyA 22:0dd9c1b5664a 993 return lwip_send(s, data, size, 0);
AndyA 22:0dd9c1b5664a 994 }
AndyA 22:0dd9c1b5664a 995
AndyA 22:0dd9c1b5664a 996 /**
AndyA 22:0dd9c1b5664a 997 * Go through the readset and writeset lists and see which socket of the sockets
AndyA 22:0dd9c1b5664a 998 * set in the sets has events. On return, readset, writeset and exceptset have
AndyA 22:0dd9c1b5664a 999 * the sockets enabled that had events.
AndyA 22:0dd9c1b5664a 1000 *
AndyA 22:0dd9c1b5664a 1001 * exceptset is not used for now!!!
AndyA 22:0dd9c1b5664a 1002 *
AndyA 22:0dd9c1b5664a 1003 * @param maxfdp1 the highest socket index in the sets
AndyA 22:0dd9c1b5664a 1004 * @param readset_in: set of sockets to check for read events
AndyA 22:0dd9c1b5664a 1005 * @param writeset_in: set of sockets to check for write events
AndyA 22:0dd9c1b5664a 1006 * @param exceptset_in: set of sockets to check for error events
AndyA 22:0dd9c1b5664a 1007 * @param readset_out: set of sockets that had read events
AndyA 22:0dd9c1b5664a 1008 * @param writeset_out: set of sockets that had write events
AndyA 22:0dd9c1b5664a 1009 * @param exceptset_out: set os sockets that had error events
AndyA 22:0dd9c1b5664a 1010 * @return number of sockets that had events (read/write/exception) (>= 0)
AndyA 22:0dd9c1b5664a 1011 */
AndyA 22:0dd9c1b5664a 1012 static int
AndyA 22:0dd9c1b5664a 1013 lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
AndyA 22:0dd9c1b5664a 1014 fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
AndyA 22:0dd9c1b5664a 1015 {
AndyA 22:0dd9c1b5664a 1016 int i, nready = 0;
AndyA 22:0dd9c1b5664a 1017 fd_set lreadset, lwriteset, lexceptset;
AndyA 22:0dd9c1b5664a 1018 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 1019 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1020
AndyA 22:0dd9c1b5664a 1021 FD_ZERO(&lreadset);
AndyA 22:0dd9c1b5664a 1022 FD_ZERO(&lwriteset);
AndyA 22:0dd9c1b5664a 1023 FD_ZERO(&lexceptset);
AndyA 22:0dd9c1b5664a 1024
AndyA 22:0dd9c1b5664a 1025 /* Go through each socket in each list to count number of sockets which
AndyA 22:0dd9c1b5664a 1026 currently match */
AndyA 22:0dd9c1b5664a 1027 for(i = 0; i < maxfdp1; i++) {
AndyA 22:0dd9c1b5664a 1028 void* lastdata = NULL;
AndyA 22:0dd9c1b5664a 1029 s16_t rcvevent = 0;
AndyA 22:0dd9c1b5664a 1030 u16_t sendevent = 0;
AndyA 22:0dd9c1b5664a 1031 u16_t errevent = 0;
AndyA 22:0dd9c1b5664a 1032 /* First get the socket's status (protected)... */
AndyA 22:0dd9c1b5664a 1033 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1034 sock = tryget_socket(i);
AndyA 22:0dd9c1b5664a 1035 if (sock != NULL) {
AndyA 22:0dd9c1b5664a 1036 lastdata = sock->lastdata;
AndyA 22:0dd9c1b5664a 1037 rcvevent = sock->rcvevent;
AndyA 22:0dd9c1b5664a 1038 sendevent = sock->sendevent;
AndyA 22:0dd9c1b5664a 1039 errevent = sock->errevent;
AndyA 22:0dd9c1b5664a 1040 }
AndyA 22:0dd9c1b5664a 1041 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1042 /* ... then examine it: */
AndyA 22:0dd9c1b5664a 1043 /* See if netconn of this socket is ready for read */
AndyA 22:0dd9c1b5664a 1044 if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
AndyA 22:0dd9c1b5664a 1045 FD_SET(i, &lreadset);
AndyA 22:0dd9c1b5664a 1046 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
AndyA 22:0dd9c1b5664a 1047 nready++;
AndyA 22:0dd9c1b5664a 1048 }
AndyA 22:0dd9c1b5664a 1049 /* See if netconn of this socket is ready for write */
AndyA 22:0dd9c1b5664a 1050 if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
AndyA 22:0dd9c1b5664a 1051 FD_SET(i, &lwriteset);
AndyA 22:0dd9c1b5664a 1052 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
AndyA 22:0dd9c1b5664a 1053 nready++;
AndyA 22:0dd9c1b5664a 1054 }
AndyA 22:0dd9c1b5664a 1055 /* See if netconn of this socket had an error */
AndyA 22:0dd9c1b5664a 1056 if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
AndyA 22:0dd9c1b5664a 1057 FD_SET(i, &lexceptset);
AndyA 22:0dd9c1b5664a 1058 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
AndyA 22:0dd9c1b5664a 1059 nready++;
AndyA 22:0dd9c1b5664a 1060 }
AndyA 22:0dd9c1b5664a 1061 }
AndyA 22:0dd9c1b5664a 1062 /* copy local sets to the ones provided as arguments */
AndyA 22:0dd9c1b5664a 1063 *readset_out = lreadset;
AndyA 22:0dd9c1b5664a 1064 *writeset_out = lwriteset;
AndyA 22:0dd9c1b5664a 1065 *exceptset_out = lexceptset;
AndyA 22:0dd9c1b5664a 1066
AndyA 22:0dd9c1b5664a 1067 LWIP_ASSERT("nready >= 0", nready >= 0);
AndyA 22:0dd9c1b5664a 1068 return nready;
AndyA 22:0dd9c1b5664a 1069 }
AndyA 22:0dd9c1b5664a 1070
AndyA 22:0dd9c1b5664a 1071 /**
AndyA 22:0dd9c1b5664a 1072 * Processing exceptset is not yet implemented.
AndyA 22:0dd9c1b5664a 1073 */
AndyA 22:0dd9c1b5664a 1074 int
AndyA 22:0dd9c1b5664a 1075 lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
AndyA 22:0dd9c1b5664a 1076 struct timeval *timeout)
AndyA 22:0dd9c1b5664a 1077 {
AndyA 22:0dd9c1b5664a 1078 u32_t waitres = 0;
AndyA 22:0dd9c1b5664a 1079 int nready;
AndyA 22:0dd9c1b5664a 1080 fd_set lreadset, lwriteset, lexceptset;
AndyA 22:0dd9c1b5664a 1081 u32_t msectimeout;
AndyA 22:0dd9c1b5664a 1082 struct lwip_select_cb select_cb;
AndyA 22:0dd9c1b5664a 1083 err_t err;
AndyA 22:0dd9c1b5664a 1084 int i;
AndyA 22:0dd9c1b5664a 1085 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1086
AndyA 22:0dd9c1b5664a 1087 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
AndyA 22:0dd9c1b5664a 1088 maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
AndyA 22:0dd9c1b5664a 1089 timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
AndyA 22:0dd9c1b5664a 1090 timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
AndyA 22:0dd9c1b5664a 1091
AndyA 22:0dd9c1b5664a 1092 /* Go through each socket in each list to count number of sockets which
AndyA 22:0dd9c1b5664a 1093 currently match */
AndyA 22:0dd9c1b5664a 1094 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AndyA 22:0dd9c1b5664a 1095
AndyA 22:0dd9c1b5664a 1096 /* If we don't have any current events, then suspend if we are supposed to */
AndyA 22:0dd9c1b5664a 1097 if (!nready) {
AndyA 22:0dd9c1b5664a 1098 if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
AndyA 22:0dd9c1b5664a 1099 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
AndyA 22:0dd9c1b5664a 1100 /* This is OK as the local fdsets are empty and nready is zero,
AndyA 22:0dd9c1b5664a 1101 or we would have returned earlier. */
AndyA 22:0dd9c1b5664a 1102 goto return_copy_fdsets;
AndyA 22:0dd9c1b5664a 1103 }
AndyA 22:0dd9c1b5664a 1104
AndyA 22:0dd9c1b5664a 1105 /* None ready: add our semaphore to list:
AndyA 22:0dd9c1b5664a 1106 We don't actually need any dynamic memory. Our entry on the
AndyA 22:0dd9c1b5664a 1107 list is only valid while we are in this function, so it's ok
AndyA 22:0dd9c1b5664a 1108 to use local variables. */
AndyA 22:0dd9c1b5664a 1109
AndyA 22:0dd9c1b5664a 1110 select_cb.next = NULL;
AndyA 22:0dd9c1b5664a 1111 select_cb.prev = NULL;
AndyA 22:0dd9c1b5664a 1112 select_cb.readset = readset;
AndyA 22:0dd9c1b5664a 1113 select_cb.writeset = writeset;
AndyA 22:0dd9c1b5664a 1114 select_cb.exceptset = exceptset;
AndyA 22:0dd9c1b5664a 1115 select_cb.sem_signalled = 0;
AndyA 22:0dd9c1b5664a 1116 err = sys_sem_new(&select_cb.sem, 0);
AndyA 22:0dd9c1b5664a 1117 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 1118 /* failed to create semaphore */
AndyA 22:0dd9c1b5664a 1119 set_errno(ENOMEM);
AndyA 22:0dd9c1b5664a 1120 return -1;
AndyA 22:0dd9c1b5664a 1121 }
AndyA 22:0dd9c1b5664a 1122
AndyA 22:0dd9c1b5664a 1123 /* Protect the select_cb_list */
AndyA 22:0dd9c1b5664a 1124 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1125
AndyA 22:0dd9c1b5664a 1126 /* Put this select_cb on top of list */
AndyA 22:0dd9c1b5664a 1127 select_cb.next = select_cb_list;
AndyA 22:0dd9c1b5664a 1128 if (select_cb_list != NULL) {
AndyA 22:0dd9c1b5664a 1129 select_cb_list->prev = &select_cb;
AndyA 22:0dd9c1b5664a 1130 }
AndyA 22:0dd9c1b5664a 1131 select_cb_list = &select_cb;
AndyA 22:0dd9c1b5664a 1132 /* Increasing this counter tells even_callback that the list has changed. */
AndyA 22:0dd9c1b5664a 1133 select_cb_ctr++;
AndyA 22:0dd9c1b5664a 1134
AndyA 22:0dd9c1b5664a 1135 /* Now we can safely unprotect */
AndyA 22:0dd9c1b5664a 1136 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1137
AndyA 22:0dd9c1b5664a 1138 /* Increase select_waiting for each socket we are interested in */
AndyA 22:0dd9c1b5664a 1139 for(i = 0; i < maxfdp1; i++) {
AndyA 22:0dd9c1b5664a 1140 if ((readset && FD_ISSET(i, readset)) ||
AndyA 22:0dd9c1b5664a 1141 (writeset && FD_ISSET(i, writeset)) ||
AndyA 22:0dd9c1b5664a 1142 (exceptset && FD_ISSET(i, exceptset))) {
AndyA 22:0dd9c1b5664a 1143 struct lwip_sock *sock = tryget_socket(i);
AndyA 22:0dd9c1b5664a 1144 LWIP_ASSERT("sock != NULL", sock != NULL);
AndyA 22:0dd9c1b5664a 1145 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1146 sock->select_waiting++;
AndyA 22:0dd9c1b5664a 1147 LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
AndyA 22:0dd9c1b5664a 1148 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1149 }
AndyA 22:0dd9c1b5664a 1150 }
AndyA 22:0dd9c1b5664a 1151
AndyA 22:0dd9c1b5664a 1152 /* Call lwip_selscan again: there could have been events between
AndyA 22:0dd9c1b5664a 1153 the last scan (whithout us on the list) and putting us on the list! */
AndyA 22:0dd9c1b5664a 1154 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AndyA 22:0dd9c1b5664a 1155 if (!nready) {
AndyA 22:0dd9c1b5664a 1156 /* Still none ready, just wait to be woken */
AndyA 22:0dd9c1b5664a 1157 if (timeout == 0) {
AndyA 22:0dd9c1b5664a 1158 /* Wait forever */
AndyA 22:0dd9c1b5664a 1159 msectimeout = 0;
AndyA 22:0dd9c1b5664a 1160 } else {
AndyA 22:0dd9c1b5664a 1161 msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
AndyA 22:0dd9c1b5664a 1162 if (msectimeout == 0) {
AndyA 22:0dd9c1b5664a 1163 /* Wait 1ms at least (0 means wait forever) */
AndyA 22:0dd9c1b5664a 1164 msectimeout = 1;
AndyA 22:0dd9c1b5664a 1165 }
AndyA 22:0dd9c1b5664a 1166 }
AndyA 22:0dd9c1b5664a 1167
AndyA 22:0dd9c1b5664a 1168 waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
AndyA 22:0dd9c1b5664a 1169 }
AndyA 22:0dd9c1b5664a 1170 /* Increase select_waiting for each socket we are interested in */
AndyA 22:0dd9c1b5664a 1171 for(i = 0; i < maxfdp1; i++) {
AndyA 22:0dd9c1b5664a 1172 if ((readset && FD_ISSET(i, readset)) ||
AndyA 22:0dd9c1b5664a 1173 (writeset && FD_ISSET(i, writeset)) ||
AndyA 22:0dd9c1b5664a 1174 (exceptset && FD_ISSET(i, exceptset))) {
AndyA 22:0dd9c1b5664a 1175 struct lwip_sock *sock = tryget_socket(i);
AndyA 22:0dd9c1b5664a 1176 LWIP_ASSERT("sock != NULL", sock != NULL);
AndyA 22:0dd9c1b5664a 1177 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1178 sock->select_waiting--;
AndyA 22:0dd9c1b5664a 1179 LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
AndyA 22:0dd9c1b5664a 1180 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1181 }
AndyA 22:0dd9c1b5664a 1182 }
AndyA 22:0dd9c1b5664a 1183 /* Take us off the list */
AndyA 22:0dd9c1b5664a 1184 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1185 if (select_cb.next != NULL) {
AndyA 22:0dd9c1b5664a 1186 select_cb.next->prev = select_cb.prev;
AndyA 22:0dd9c1b5664a 1187 }
AndyA 22:0dd9c1b5664a 1188 if (select_cb_list == &select_cb) {
AndyA 22:0dd9c1b5664a 1189 LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
AndyA 22:0dd9c1b5664a 1190 select_cb_list = select_cb.next;
AndyA 22:0dd9c1b5664a 1191 } else {
AndyA 22:0dd9c1b5664a 1192 LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
AndyA 22:0dd9c1b5664a 1193 select_cb.prev->next = select_cb.next;
AndyA 22:0dd9c1b5664a 1194 }
AndyA 22:0dd9c1b5664a 1195 /* Increasing this counter tells even_callback that the list has changed. */
AndyA 22:0dd9c1b5664a 1196 select_cb_ctr++;
AndyA 22:0dd9c1b5664a 1197 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1198
AndyA 22:0dd9c1b5664a 1199 sys_sem_free(&select_cb.sem);
AndyA 22:0dd9c1b5664a 1200 if (waitres == SYS_ARCH_TIMEOUT) {
AndyA 22:0dd9c1b5664a 1201 /* Timeout */
AndyA 22:0dd9c1b5664a 1202 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
AndyA 22:0dd9c1b5664a 1203 /* This is OK as the local fdsets are empty and nready is zero,
AndyA 22:0dd9c1b5664a 1204 or we would have returned earlier. */
AndyA 22:0dd9c1b5664a 1205 goto return_copy_fdsets;
AndyA 22:0dd9c1b5664a 1206 }
AndyA 22:0dd9c1b5664a 1207
AndyA 22:0dd9c1b5664a 1208 /* See what's set */
AndyA 22:0dd9c1b5664a 1209 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AndyA 22:0dd9c1b5664a 1210 }
AndyA 22:0dd9c1b5664a 1211
AndyA 22:0dd9c1b5664a 1212 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
AndyA 22:0dd9c1b5664a 1213 return_copy_fdsets:
AndyA 22:0dd9c1b5664a 1214 set_errno(0);
AndyA 22:0dd9c1b5664a 1215 if (readset) {
AndyA 22:0dd9c1b5664a 1216 *readset = lreadset;
AndyA 22:0dd9c1b5664a 1217 }
AndyA 22:0dd9c1b5664a 1218 if (writeset) {
AndyA 22:0dd9c1b5664a 1219 *writeset = lwriteset;
AndyA 22:0dd9c1b5664a 1220 }
AndyA 22:0dd9c1b5664a 1221 if (exceptset) {
AndyA 22:0dd9c1b5664a 1222 *exceptset = lexceptset;
AndyA 22:0dd9c1b5664a 1223 }
AndyA 22:0dd9c1b5664a 1224
AndyA 22:0dd9c1b5664a 1225
AndyA 22:0dd9c1b5664a 1226 return nready;
AndyA 22:0dd9c1b5664a 1227 }
AndyA 22:0dd9c1b5664a 1228
AndyA 22:0dd9c1b5664a 1229 /**
AndyA 22:0dd9c1b5664a 1230 * Callback registered in the netconn layer for each socket-netconn.
AndyA 22:0dd9c1b5664a 1231 * Processes recvevent (data available) and wakes up tasks waiting for select.
AndyA 22:0dd9c1b5664a 1232 */
AndyA 22:0dd9c1b5664a 1233 static void
AndyA 22:0dd9c1b5664a 1234 event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
AndyA 22:0dd9c1b5664a 1235 {
AndyA 22:0dd9c1b5664a 1236 int s;
AndyA 22:0dd9c1b5664a 1237 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 1238 struct lwip_select_cb *scb;
AndyA 22:0dd9c1b5664a 1239 int last_select_cb_ctr;
AndyA 22:0dd9c1b5664a 1240 SYS_ARCH_DECL_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1241
AndyA 22:0dd9c1b5664a 1242 LWIP_UNUSED_ARG(len);
AndyA 22:0dd9c1b5664a 1243
AndyA 22:0dd9c1b5664a 1244 /* Get socket */
AndyA 22:0dd9c1b5664a 1245 if (conn) {
AndyA 22:0dd9c1b5664a 1246 s = conn->socket;
AndyA 22:0dd9c1b5664a 1247 if (s < 0) {
AndyA 22:0dd9c1b5664a 1248 /* Data comes in right away after an accept, even though
AndyA 22:0dd9c1b5664a 1249 * the server task might not have created a new socket yet.
AndyA 22:0dd9c1b5664a 1250 * Just count down (or up) if that's the case and we
AndyA 22:0dd9c1b5664a 1251 * will use the data later. Note that only receive events
AndyA 22:0dd9c1b5664a 1252 * can happen before the new socket is set up. */
AndyA 22:0dd9c1b5664a 1253 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1254 if (conn->socket < 0) {
AndyA 22:0dd9c1b5664a 1255 if (evt == NETCONN_EVT_RCVPLUS) {
AndyA 22:0dd9c1b5664a 1256 conn->socket--;
AndyA 22:0dd9c1b5664a 1257 }
AndyA 22:0dd9c1b5664a 1258 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1259 return;
AndyA 22:0dd9c1b5664a 1260 }
AndyA 22:0dd9c1b5664a 1261 s = conn->socket;
AndyA 22:0dd9c1b5664a 1262 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1263 }
AndyA 22:0dd9c1b5664a 1264
AndyA 22:0dd9c1b5664a 1265 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 1266 if (!sock) {
AndyA 22:0dd9c1b5664a 1267 return;
AndyA 22:0dd9c1b5664a 1268 }
AndyA 22:0dd9c1b5664a 1269 } else {
AndyA 22:0dd9c1b5664a 1270 return;
AndyA 22:0dd9c1b5664a 1271 }
AndyA 22:0dd9c1b5664a 1272
AndyA 22:0dd9c1b5664a 1273 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1274 /* Set event as required */
AndyA 22:0dd9c1b5664a 1275 switch (evt) {
AndyA 22:0dd9c1b5664a 1276 case NETCONN_EVT_RCVPLUS:
AndyA 22:0dd9c1b5664a 1277 sock->rcvevent++;
AndyA 22:0dd9c1b5664a 1278 break;
AndyA 22:0dd9c1b5664a 1279 case NETCONN_EVT_RCVMINUS:
AndyA 22:0dd9c1b5664a 1280 sock->rcvevent--;
AndyA 22:0dd9c1b5664a 1281 break;
AndyA 22:0dd9c1b5664a 1282 case NETCONN_EVT_SENDPLUS:
AndyA 22:0dd9c1b5664a 1283 sock->sendevent = 1;
AndyA 22:0dd9c1b5664a 1284 break;
AndyA 22:0dd9c1b5664a 1285 case NETCONN_EVT_SENDMINUS:
AndyA 22:0dd9c1b5664a 1286 sock->sendevent = 0;
AndyA 22:0dd9c1b5664a 1287 break;
AndyA 22:0dd9c1b5664a 1288 case NETCONN_EVT_ERROR:
AndyA 22:0dd9c1b5664a 1289 sock->errevent = 1;
AndyA 22:0dd9c1b5664a 1290 break;
AndyA 22:0dd9c1b5664a 1291 default:
AndyA 22:0dd9c1b5664a 1292 LWIP_ASSERT("unknown event", 0);
AndyA 22:0dd9c1b5664a 1293 break;
AndyA 22:0dd9c1b5664a 1294 }
AndyA 22:0dd9c1b5664a 1295
AndyA 22:0dd9c1b5664a 1296 if (sock->select_waiting == 0) {
AndyA 22:0dd9c1b5664a 1297 /* noone is waiting for this socket, no need to check select_cb_list */
AndyA 22:0dd9c1b5664a 1298 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1299 return;
AndyA 22:0dd9c1b5664a 1300 }
AndyA 22:0dd9c1b5664a 1301
AndyA 22:0dd9c1b5664a 1302 /* Now decide if anyone is waiting for this socket */
AndyA 22:0dd9c1b5664a 1303 /* NOTE: This code goes through the select_cb_list list multiple times
AndyA 22:0dd9c1b5664a 1304 ONLY IF a select was actually waiting. We go through the list the number
AndyA 22:0dd9c1b5664a 1305 of waiting select calls + 1. This list is expected to be small. */
AndyA 22:0dd9c1b5664a 1306
AndyA 22:0dd9c1b5664a 1307 /* At this point, SYS_ARCH is still protected! */
AndyA 22:0dd9c1b5664a 1308 again:
AndyA 22:0dd9c1b5664a 1309 for (scb = select_cb_list; scb != NULL; scb = scb->next) {
AndyA 22:0dd9c1b5664a 1310 if (scb->sem_signalled == 0) {
AndyA 22:0dd9c1b5664a 1311 /* semaphore not signalled yet */
AndyA 22:0dd9c1b5664a 1312 int do_signal = 0;
AndyA 22:0dd9c1b5664a 1313 /* Test this select call for our socket */
AndyA 22:0dd9c1b5664a 1314 if (sock->rcvevent > 0) {
AndyA 22:0dd9c1b5664a 1315 if (scb->readset && FD_ISSET(s, scb->readset)) {
AndyA 22:0dd9c1b5664a 1316 do_signal = 1;
AndyA 22:0dd9c1b5664a 1317 }
AndyA 22:0dd9c1b5664a 1318 }
AndyA 22:0dd9c1b5664a 1319 if (sock->sendevent != 0) {
AndyA 22:0dd9c1b5664a 1320 if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
AndyA 22:0dd9c1b5664a 1321 do_signal = 1;
AndyA 22:0dd9c1b5664a 1322 }
AndyA 22:0dd9c1b5664a 1323 }
AndyA 22:0dd9c1b5664a 1324 if (sock->errevent != 0) {
AndyA 22:0dd9c1b5664a 1325 if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
AndyA 22:0dd9c1b5664a 1326 do_signal = 1;
AndyA 22:0dd9c1b5664a 1327 }
AndyA 22:0dd9c1b5664a 1328 }
AndyA 22:0dd9c1b5664a 1329 if (do_signal) {
AndyA 22:0dd9c1b5664a 1330 scb->sem_signalled = 1;
AndyA 22:0dd9c1b5664a 1331 /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
AndyA 22:0dd9c1b5664a 1332 lead to the select thread taking itself off the list, invalidagin the semaphore. */
AndyA 22:0dd9c1b5664a 1333 sys_sem_signal(&scb->sem);
AndyA 22:0dd9c1b5664a 1334 }
AndyA 22:0dd9c1b5664a 1335 }
AndyA 22:0dd9c1b5664a 1336 /* unlock interrupts with each step */
AndyA 22:0dd9c1b5664a 1337 last_select_cb_ctr = select_cb_ctr;
AndyA 22:0dd9c1b5664a 1338 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1339 /* this makes sure interrupt protection time is short */
AndyA 22:0dd9c1b5664a 1340 SYS_ARCH_PROTECT(lev);
AndyA 22:0dd9c1b5664a 1341 if (last_select_cb_ctr != select_cb_ctr) {
AndyA 22:0dd9c1b5664a 1342 /* someone has changed select_cb_list, restart at the beginning */
AndyA 22:0dd9c1b5664a 1343 goto again;
AndyA 22:0dd9c1b5664a 1344 }
AndyA 22:0dd9c1b5664a 1345 }
AndyA 22:0dd9c1b5664a 1346 SYS_ARCH_UNPROTECT(lev);
AndyA 22:0dd9c1b5664a 1347 }
AndyA 22:0dd9c1b5664a 1348
AndyA 22:0dd9c1b5664a 1349 /**
AndyA 22:0dd9c1b5664a 1350 * Unimplemented: Close one end of a full-duplex connection.
AndyA 22:0dd9c1b5664a 1351 * Currently, the full connection is closed.
AndyA 22:0dd9c1b5664a 1352 */
AndyA 22:0dd9c1b5664a 1353 int
AndyA 22:0dd9c1b5664a 1354 lwip_shutdown(int s, int how)
AndyA 22:0dd9c1b5664a 1355 {
AndyA 22:0dd9c1b5664a 1356 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 1357 err_t err;
AndyA 22:0dd9c1b5664a 1358 u8_t shut_rx = 0, shut_tx = 0;
AndyA 22:0dd9c1b5664a 1359
AndyA 22:0dd9c1b5664a 1360 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
AndyA 22:0dd9c1b5664a 1361
AndyA 22:0dd9c1b5664a 1362 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 1363 if (!sock) {
AndyA 22:0dd9c1b5664a 1364 return -1;
AndyA 22:0dd9c1b5664a 1365 }
AndyA 22:0dd9c1b5664a 1366
AndyA 22:0dd9c1b5664a 1367 if (sock->conn != NULL) {
AndyA 22:0dd9c1b5664a 1368 if (netconn_type(sock->conn) != NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 1369 sock_set_errno(sock, EOPNOTSUPP);
AndyA 22:0dd9c1b5664a 1370 return EOPNOTSUPP;
AndyA 22:0dd9c1b5664a 1371 }
AndyA 22:0dd9c1b5664a 1372 } else {
AndyA 22:0dd9c1b5664a 1373 sock_set_errno(sock, ENOTCONN);
AndyA 22:0dd9c1b5664a 1374 return ENOTCONN;
AndyA 22:0dd9c1b5664a 1375 }
AndyA 22:0dd9c1b5664a 1376
AndyA 22:0dd9c1b5664a 1377 if (how == SHUT_RD) {
AndyA 22:0dd9c1b5664a 1378 shut_rx = 1;
AndyA 22:0dd9c1b5664a 1379 } else if (how == SHUT_WR) {
AndyA 22:0dd9c1b5664a 1380 shut_tx = 1;
AndyA 22:0dd9c1b5664a 1381 } else if(how == SHUT_RDWR) {
AndyA 22:0dd9c1b5664a 1382 shut_rx = 1;
AndyA 22:0dd9c1b5664a 1383 shut_tx = 1;
AndyA 22:0dd9c1b5664a 1384 } else {
AndyA 22:0dd9c1b5664a 1385 sock_set_errno(sock, EINVAL);
AndyA 22:0dd9c1b5664a 1386 return EINVAL;
AndyA 22:0dd9c1b5664a 1387 }
AndyA 22:0dd9c1b5664a 1388 err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
AndyA 22:0dd9c1b5664a 1389
AndyA 22:0dd9c1b5664a 1390 sock_set_errno(sock, err_to_errno(err));
AndyA 22:0dd9c1b5664a 1391 return (err == ERR_OK ? 0 : -1);
AndyA 22:0dd9c1b5664a 1392 }
AndyA 22:0dd9c1b5664a 1393
AndyA 22:0dd9c1b5664a 1394 static int
AndyA 22:0dd9c1b5664a 1395 lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
AndyA 22:0dd9c1b5664a 1396 {
AndyA 22:0dd9c1b5664a 1397 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 1398 struct sockaddr_in sin;
AndyA 22:0dd9c1b5664a 1399 ip_addr_t naddr;
AndyA 22:0dd9c1b5664a 1400
AndyA 22:0dd9c1b5664a 1401 sock = get_socket(s);
AndyA 22:0dd9c1b5664a 1402 if (!sock) {
AndyA 22:0dd9c1b5664a 1403 return -1;
AndyA 22:0dd9c1b5664a 1404 }
AndyA 22:0dd9c1b5664a 1405
AndyA 22:0dd9c1b5664a 1406 memset(&sin, 0, sizeof(sin));
AndyA 22:0dd9c1b5664a 1407 sin.sin_len = sizeof(sin);
AndyA 22:0dd9c1b5664a 1408 sin.sin_family = AF_INET;
AndyA 22:0dd9c1b5664a 1409
AndyA 22:0dd9c1b5664a 1410 /* get the IP address and port */
AndyA 22:0dd9c1b5664a 1411 netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
AndyA 22:0dd9c1b5664a 1412
AndyA 22:0dd9c1b5664a 1413 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
AndyA 22:0dd9c1b5664a 1414 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
AndyA 22:0dd9c1b5664a 1415 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
AndyA 22:0dd9c1b5664a 1416
AndyA 22:0dd9c1b5664a 1417 sin.sin_port = htons(sin.sin_port);
AndyA 22:0dd9c1b5664a 1418 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
AndyA 22:0dd9c1b5664a 1419
AndyA 22:0dd9c1b5664a 1420 if (*namelen > sizeof(sin)) {
AndyA 22:0dd9c1b5664a 1421 *namelen = sizeof(sin);
AndyA 22:0dd9c1b5664a 1422 }
AndyA 22:0dd9c1b5664a 1423
AndyA 22:0dd9c1b5664a 1424 MEMCPY(name, &sin, *namelen);
AndyA 22:0dd9c1b5664a 1425 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 1426 return 0;
AndyA 22:0dd9c1b5664a 1427 }
AndyA 22:0dd9c1b5664a 1428
AndyA 22:0dd9c1b5664a 1429 int
AndyA 22:0dd9c1b5664a 1430 lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
AndyA 22:0dd9c1b5664a 1431 {
AndyA 22:0dd9c1b5664a 1432 return lwip_getaddrname(s, name, namelen, 0);
AndyA 22:0dd9c1b5664a 1433 }
AndyA 22:0dd9c1b5664a 1434
AndyA 22:0dd9c1b5664a 1435 int
AndyA 22:0dd9c1b5664a 1436 lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
AndyA 22:0dd9c1b5664a 1437 {
AndyA 22:0dd9c1b5664a 1438 return lwip_getaddrname(s, name, namelen, 1);
AndyA 22:0dd9c1b5664a 1439 }
AndyA 22:0dd9c1b5664a 1440
AndyA 22:0dd9c1b5664a 1441 int
AndyA 22:0dd9c1b5664a 1442 lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
AndyA 22:0dd9c1b5664a 1443 {
AndyA 22:0dd9c1b5664a 1444 err_t err = ERR_OK;
AndyA 22:0dd9c1b5664a 1445 struct lwip_sock *sock = get_socket(s);
AndyA 22:0dd9c1b5664a 1446 struct lwip_setgetsockopt_data data;
AndyA 22:0dd9c1b5664a 1447
AndyA 22:0dd9c1b5664a 1448 if (!sock) {
AndyA 22:0dd9c1b5664a 1449 return -1;
AndyA 22:0dd9c1b5664a 1450 }
AndyA 22:0dd9c1b5664a 1451
AndyA 22:0dd9c1b5664a 1452 if ((NULL == optval) || (NULL == optlen)) {
AndyA 22:0dd9c1b5664a 1453 sock_set_errno(sock, EFAULT);
AndyA 22:0dd9c1b5664a 1454 return -1;
AndyA 22:0dd9c1b5664a 1455 }
AndyA 22:0dd9c1b5664a 1456
AndyA 22:0dd9c1b5664a 1457 /* Do length and type checks for the various options first, to keep it readable. */
AndyA 22:0dd9c1b5664a 1458 switch (level) {
AndyA 22:0dd9c1b5664a 1459
AndyA 22:0dd9c1b5664a 1460 /* Level: SOL_SOCKET */
AndyA 22:0dd9c1b5664a 1461 case SOL_SOCKET:
AndyA 22:0dd9c1b5664a 1462 switch (optname) {
AndyA 22:0dd9c1b5664a 1463
AndyA 22:0dd9c1b5664a 1464 case SO_ACCEPTCONN:
AndyA 22:0dd9c1b5664a 1465 case SO_BROADCAST:
AndyA 22:0dd9c1b5664a 1466 /* UNIMPL case SO_DEBUG: */
AndyA 22:0dd9c1b5664a 1467 /* UNIMPL case SO_DONTROUTE: */
AndyA 22:0dd9c1b5664a 1468 case SO_ERROR:
AndyA 22:0dd9c1b5664a 1469 case SO_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1470 /* UNIMPL case SO_CONTIMEO: */
AndyA 22:0dd9c1b5664a 1471 /* UNIMPL case SO_SNDTIMEO: */
AndyA 22:0dd9c1b5664a 1472 #if LWIP_SO_RCVTIMEO
AndyA 22:0dd9c1b5664a 1473 case SO_RCVTIMEO:
AndyA 22:0dd9c1b5664a 1474 #endif /* LWIP_SO_RCVTIMEO */
AndyA 22:0dd9c1b5664a 1475 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 1476 case SO_RCVBUF:
AndyA 22:0dd9c1b5664a 1477 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 1478 /* UNIMPL case SO_OOBINLINE: */
AndyA 22:0dd9c1b5664a 1479 /* UNIMPL case SO_SNDBUF: */
AndyA 22:0dd9c1b5664a 1480 /* UNIMPL case SO_RCVLOWAT: */
AndyA 22:0dd9c1b5664a 1481 /* UNIMPL case SO_SNDLOWAT: */
AndyA 22:0dd9c1b5664a 1482 #if SO_REUSE
AndyA 22:0dd9c1b5664a 1483 case SO_REUSEADDR:
AndyA 22:0dd9c1b5664a 1484 case SO_REUSEPORT:
AndyA 22:0dd9c1b5664a 1485 #endif /* SO_REUSE */
AndyA 22:0dd9c1b5664a 1486 case SO_TYPE:
AndyA 22:0dd9c1b5664a 1487 /* UNIMPL case SO_USELOOPBACK: */
AndyA 22:0dd9c1b5664a 1488 if (*optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1489 err = EINVAL;
AndyA 22:0dd9c1b5664a 1490 }
AndyA 22:0dd9c1b5664a 1491 break;
AndyA 22:0dd9c1b5664a 1492
AndyA 22:0dd9c1b5664a 1493 case SO_NO_CHECK:
AndyA 22:0dd9c1b5664a 1494 if (*optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1495 err = EINVAL;
AndyA 22:0dd9c1b5664a 1496 }
AndyA 22:0dd9c1b5664a 1497 #if LWIP_UDP
AndyA 22:0dd9c1b5664a 1498 if ((sock->conn->type != NETCONN_UDP) ||
AndyA 22:0dd9c1b5664a 1499 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
AndyA 22:0dd9c1b5664a 1500 /* this flag is only available for UDP, not for UDP lite */
AndyA 22:0dd9c1b5664a 1501 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1502 }
AndyA 22:0dd9c1b5664a 1503 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 1504 break;
AndyA 22:0dd9c1b5664a 1505
AndyA 22:0dd9c1b5664a 1506 default:
AndyA 22:0dd9c1b5664a 1507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1508 s, optname));
AndyA 22:0dd9c1b5664a 1509 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1510 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1511 break;
AndyA 22:0dd9c1b5664a 1512
AndyA 22:0dd9c1b5664a 1513 /* Level: IPPROTO_IP */
AndyA 22:0dd9c1b5664a 1514 case IPPROTO_IP:
AndyA 22:0dd9c1b5664a 1515 switch (optname) {
AndyA 22:0dd9c1b5664a 1516 /* UNIMPL case IP_HDRINCL: */
AndyA 22:0dd9c1b5664a 1517 /* UNIMPL case IP_RCVDSTADDR: */
AndyA 22:0dd9c1b5664a 1518 /* UNIMPL case IP_RCVIF: */
AndyA 22:0dd9c1b5664a 1519 case IP_TTL:
AndyA 22:0dd9c1b5664a 1520 case IP_TOS:
AndyA 22:0dd9c1b5664a 1521 if (*optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1522 err = EINVAL;
AndyA 22:0dd9c1b5664a 1523 }
AndyA 22:0dd9c1b5664a 1524 break;
AndyA 22:0dd9c1b5664a 1525 #if LWIP_IGMP
AndyA 22:0dd9c1b5664a 1526 case IP_MULTICAST_TTL:
AndyA 22:0dd9c1b5664a 1527 if (*optlen < sizeof(u8_t)) {
AndyA 22:0dd9c1b5664a 1528 err = EINVAL;
AndyA 22:0dd9c1b5664a 1529 }
AndyA 22:0dd9c1b5664a 1530 break;
AndyA 22:0dd9c1b5664a 1531 case IP_MULTICAST_IF:
AndyA 22:0dd9c1b5664a 1532 if (*optlen < sizeof(struct in_addr)) {
AndyA 22:0dd9c1b5664a 1533 err = EINVAL;
AndyA 22:0dd9c1b5664a 1534 }
AndyA 22:0dd9c1b5664a 1535 break;
AndyA 22:0dd9c1b5664a 1536 case IP_MULTICAST_LOOP:
AndyA 22:0dd9c1b5664a 1537 if (*optlen < sizeof(u8_t)) {
AndyA 22:0dd9c1b5664a 1538 err = EINVAL;
AndyA 22:0dd9c1b5664a 1539 }
AndyA 22:0dd9c1b5664a 1540 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AndyA 22:0dd9c1b5664a 1541 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1542 }
AndyA 22:0dd9c1b5664a 1543 break;
AndyA 22:0dd9c1b5664a 1544 #endif /* LWIP_IGMP */
AndyA 22:0dd9c1b5664a 1545
AndyA 22:0dd9c1b5664a 1546 default:
AndyA 22:0dd9c1b5664a 1547 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1548 s, optname));
AndyA 22:0dd9c1b5664a 1549 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1550 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1551 break;
AndyA 22:0dd9c1b5664a 1552
AndyA 22:0dd9c1b5664a 1553 #if LWIP_TCP
AndyA 22:0dd9c1b5664a 1554 /* Level: IPPROTO_TCP */
AndyA 22:0dd9c1b5664a 1555 case IPPROTO_TCP:
AndyA 22:0dd9c1b5664a 1556 if (*optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1557 err = EINVAL;
AndyA 22:0dd9c1b5664a 1558 break;
AndyA 22:0dd9c1b5664a 1559 }
AndyA 22:0dd9c1b5664a 1560
AndyA 22:0dd9c1b5664a 1561 /* If this is no TCP socket, ignore any options. */
AndyA 22:0dd9c1b5664a 1562 if (sock->conn->type != NETCONN_TCP)
AndyA 22:0dd9c1b5664a 1563 return 0;
AndyA 22:0dd9c1b5664a 1564
AndyA 22:0dd9c1b5664a 1565 switch (optname) {
AndyA 22:0dd9c1b5664a 1566 case TCP_NODELAY:
AndyA 22:0dd9c1b5664a 1567 case TCP_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1568 #if LWIP_TCP_KEEPALIVE
AndyA 22:0dd9c1b5664a 1569 case TCP_KEEPIDLE:
AndyA 22:0dd9c1b5664a 1570 case TCP_KEEPINTVL:
AndyA 22:0dd9c1b5664a 1571 case TCP_KEEPCNT:
AndyA 22:0dd9c1b5664a 1572 #endif /* LWIP_TCP_KEEPALIVE */
AndyA 22:0dd9c1b5664a 1573 break;
AndyA 22:0dd9c1b5664a 1574
AndyA 22:0dd9c1b5664a 1575 default:
AndyA 22:0dd9c1b5664a 1576 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1577 s, optname));
AndyA 22:0dd9c1b5664a 1578 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1579 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1580 break;
AndyA 22:0dd9c1b5664a 1581 #endif /* LWIP_TCP */
AndyA 22:0dd9c1b5664a 1582 #if LWIP_UDP && LWIP_UDPLITE
AndyA 22:0dd9c1b5664a 1583 /* Level: IPPROTO_UDPLITE */
AndyA 22:0dd9c1b5664a 1584 case IPPROTO_UDPLITE:
AndyA 22:0dd9c1b5664a 1585 if (*optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1586 err = EINVAL;
AndyA 22:0dd9c1b5664a 1587 break;
AndyA 22:0dd9c1b5664a 1588 }
AndyA 22:0dd9c1b5664a 1589
AndyA 22:0dd9c1b5664a 1590 /* If this is no UDP lite socket, ignore any options. */
AndyA 22:0dd9c1b5664a 1591 if (sock->conn->type != NETCONN_UDPLITE) {
AndyA 22:0dd9c1b5664a 1592 return 0;
AndyA 22:0dd9c1b5664a 1593 }
AndyA 22:0dd9c1b5664a 1594
AndyA 22:0dd9c1b5664a 1595 switch (optname) {
AndyA 22:0dd9c1b5664a 1596 case UDPLITE_SEND_CSCOV:
AndyA 22:0dd9c1b5664a 1597 case UDPLITE_RECV_CSCOV:
AndyA 22:0dd9c1b5664a 1598 break;
AndyA 22:0dd9c1b5664a 1599
AndyA 22:0dd9c1b5664a 1600 default:
AndyA 22:0dd9c1b5664a 1601 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1602 s, optname));
AndyA 22:0dd9c1b5664a 1603 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1604 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1605 break;
AndyA 22:0dd9c1b5664a 1606 #endif /* LWIP_UDP && LWIP_UDPLITE*/
AndyA 22:0dd9c1b5664a 1607 /* UNDEFINED LEVEL */
AndyA 22:0dd9c1b5664a 1608 default:
AndyA 22:0dd9c1b5664a 1609 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1610 s, level, optname));
AndyA 22:0dd9c1b5664a 1611 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1612 } /* switch */
AndyA 22:0dd9c1b5664a 1613
AndyA 22:0dd9c1b5664a 1614
AndyA 22:0dd9c1b5664a 1615 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 1616 sock_set_errno(sock, err);
AndyA 22:0dd9c1b5664a 1617 return -1;
AndyA 22:0dd9c1b5664a 1618 }
AndyA 22:0dd9c1b5664a 1619
AndyA 22:0dd9c1b5664a 1620 /* Now do the actual option processing */
AndyA 22:0dd9c1b5664a 1621 data.sock = sock;
AndyA 22:0dd9c1b5664a 1622 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 1623 data.s = s;
AndyA 22:0dd9c1b5664a 1624 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 1625 data.level = level;
AndyA 22:0dd9c1b5664a 1626 data.optname = optname;
AndyA 22:0dd9c1b5664a 1627 data.optval = optval;
AndyA 22:0dd9c1b5664a 1628 data.optlen = optlen;
AndyA 22:0dd9c1b5664a 1629 data.err = err;
AndyA 22:0dd9c1b5664a 1630 tcpip_callback(lwip_getsockopt_internal, &data);
AndyA 22:0dd9c1b5664a 1631 sys_arch_sem_wait(&sock->conn->op_completed, 0);
AndyA 22:0dd9c1b5664a 1632 /* maybe lwip_getsockopt_internal has changed err */
AndyA 22:0dd9c1b5664a 1633 err = data.err;
AndyA 22:0dd9c1b5664a 1634
AndyA 22:0dd9c1b5664a 1635 sock_set_errno(sock, err);
AndyA 22:0dd9c1b5664a 1636 return err ? -1 : 0;
AndyA 22:0dd9c1b5664a 1637 }
AndyA 22:0dd9c1b5664a 1638
AndyA 22:0dd9c1b5664a 1639 static void
AndyA 22:0dd9c1b5664a 1640 lwip_getsockopt_internal(void *arg)
AndyA 22:0dd9c1b5664a 1641 {
AndyA 22:0dd9c1b5664a 1642 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 1643 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 1644 int s;
AndyA 22:0dd9c1b5664a 1645 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 1646 int level, optname;
AndyA 22:0dd9c1b5664a 1647 void *optval;
AndyA 22:0dd9c1b5664a 1648 struct lwip_setgetsockopt_data *data;
AndyA 22:0dd9c1b5664a 1649
AndyA 22:0dd9c1b5664a 1650 LWIP_ASSERT("arg != NULL", arg != NULL);
AndyA 22:0dd9c1b5664a 1651
AndyA 22:0dd9c1b5664a 1652 data = (struct lwip_setgetsockopt_data*)arg;
AndyA 22:0dd9c1b5664a 1653 sock = data->sock;
AndyA 22:0dd9c1b5664a 1654 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 1655 s = data->s;
AndyA 22:0dd9c1b5664a 1656 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 1657 level = data->level;
AndyA 22:0dd9c1b5664a 1658 optname = data->optname;
AndyA 22:0dd9c1b5664a 1659 optval = data->optval;
AndyA 22:0dd9c1b5664a 1660
AndyA 22:0dd9c1b5664a 1661 switch (level) {
AndyA 22:0dd9c1b5664a 1662
AndyA 22:0dd9c1b5664a 1663 /* Level: SOL_SOCKET */
AndyA 22:0dd9c1b5664a 1664 case SOL_SOCKET:
AndyA 22:0dd9c1b5664a 1665 switch (optname) {
AndyA 22:0dd9c1b5664a 1666
AndyA 22:0dd9c1b5664a 1667 /* The option flags */
AndyA 22:0dd9c1b5664a 1668 case SO_ACCEPTCONN:
AndyA 22:0dd9c1b5664a 1669 case SO_BROADCAST:
AndyA 22:0dd9c1b5664a 1670 /* UNIMPL case SO_DEBUG: */
AndyA 22:0dd9c1b5664a 1671 /* UNIMPL case SO_DONTROUTE: */
AndyA 22:0dd9c1b5664a 1672 case SO_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1673 /* UNIMPL case SO_OOBINCLUDE: */
AndyA 22:0dd9c1b5664a 1674 #if SO_REUSE
AndyA 22:0dd9c1b5664a 1675 case SO_REUSEADDR:
AndyA 22:0dd9c1b5664a 1676 case SO_REUSEPORT:
AndyA 22:0dd9c1b5664a 1677 #endif /* SO_REUSE */
AndyA 22:0dd9c1b5664a 1678 /*case SO_USELOOPBACK: UNIMPL */
AndyA 22:0dd9c1b5664a 1679 *(int*)optval = sock->conn->pcb.ip->so_options & optname;
AndyA 22:0dd9c1b5664a 1680 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
AndyA 22:0dd9c1b5664a 1681 s, optname, (*(int*)optval?"on":"off")));
AndyA 22:0dd9c1b5664a 1682 break;
AndyA 22:0dd9c1b5664a 1683
AndyA 22:0dd9c1b5664a 1684 case SO_TYPE:
AndyA 22:0dd9c1b5664a 1685 switch (NETCONNTYPE_GROUP(sock->conn->type)) {
AndyA 22:0dd9c1b5664a 1686 case NETCONN_RAW:
AndyA 22:0dd9c1b5664a 1687 *(int*)optval = SOCK_RAW;
AndyA 22:0dd9c1b5664a 1688 break;
AndyA 22:0dd9c1b5664a 1689 case NETCONN_TCP:
AndyA 22:0dd9c1b5664a 1690 *(int*)optval = SOCK_STREAM;
AndyA 22:0dd9c1b5664a 1691 break;
AndyA 22:0dd9c1b5664a 1692 case NETCONN_UDP:
AndyA 22:0dd9c1b5664a 1693 *(int*)optval = SOCK_DGRAM;
AndyA 22:0dd9c1b5664a 1694 break;
AndyA 22:0dd9c1b5664a 1695 default: /* unrecognized socket type */
AndyA 22:0dd9c1b5664a 1696 *(int*)optval = sock->conn->type;
AndyA 22:0dd9c1b5664a 1697 LWIP_DEBUGF(SOCKETS_DEBUG,
AndyA 22:0dd9c1b5664a 1698 ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
AndyA 22:0dd9c1b5664a 1699 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1700 } /* switch (sock->conn->type) */
AndyA 22:0dd9c1b5664a 1701 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
AndyA 22:0dd9c1b5664a 1702 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1703 break;
AndyA 22:0dd9c1b5664a 1704
AndyA 22:0dd9c1b5664a 1705 case SO_ERROR:
AndyA 22:0dd9c1b5664a 1706 /* only overwrite ERR_OK or tempoary errors */
AndyA 22:0dd9c1b5664a 1707 if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
AndyA 22:0dd9c1b5664a 1708 sock_set_errno(sock, err_to_errno(sock->conn->last_err));
AndyA 22:0dd9c1b5664a 1709 }
AndyA 22:0dd9c1b5664a 1710 *(int *)optval = sock->err;
AndyA 22:0dd9c1b5664a 1711 sock->err = 0;
AndyA 22:0dd9c1b5664a 1712 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
AndyA 22:0dd9c1b5664a 1713 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1714 break;
AndyA 22:0dd9c1b5664a 1715
AndyA 22:0dd9c1b5664a 1716 #if LWIP_SO_RCVTIMEO
AndyA 22:0dd9c1b5664a 1717 case SO_RCVTIMEO:
AndyA 22:0dd9c1b5664a 1718 *(int *)optval = netconn_get_recvtimeout(sock->conn);
AndyA 22:0dd9c1b5664a 1719 break;
AndyA 22:0dd9c1b5664a 1720 #endif /* LWIP_SO_RCVTIMEO */
AndyA 22:0dd9c1b5664a 1721 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 1722 case SO_RCVBUF:
AndyA 22:0dd9c1b5664a 1723 *(int *)optval = netconn_get_recvbufsize(sock->conn);
AndyA 22:0dd9c1b5664a 1724 break;
AndyA 22:0dd9c1b5664a 1725 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 1726 #if LWIP_UDP
AndyA 22:0dd9c1b5664a 1727 case SO_NO_CHECK:
AndyA 22:0dd9c1b5664a 1728 *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
AndyA 22:0dd9c1b5664a 1729 break;
AndyA 22:0dd9c1b5664a 1730 #endif /* LWIP_UDP*/
AndyA 22:0dd9c1b5664a 1731 default:
AndyA 22:0dd9c1b5664a 1732 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 1733 break;
AndyA 22:0dd9c1b5664a 1734 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1735 break;
AndyA 22:0dd9c1b5664a 1736
AndyA 22:0dd9c1b5664a 1737 /* Level: IPPROTO_IP */
AndyA 22:0dd9c1b5664a 1738 case IPPROTO_IP:
AndyA 22:0dd9c1b5664a 1739 switch (optname) {
AndyA 22:0dd9c1b5664a 1740 case IP_TTL:
AndyA 22:0dd9c1b5664a 1741 *(int*)optval = sock->conn->pcb.ip->ttl;
AndyA 22:0dd9c1b5664a 1742 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
AndyA 22:0dd9c1b5664a 1743 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1744 break;
AndyA 22:0dd9c1b5664a 1745 case IP_TOS:
AndyA 22:0dd9c1b5664a 1746 *(int*)optval = sock->conn->pcb.ip->tos;
AndyA 22:0dd9c1b5664a 1747 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
AndyA 22:0dd9c1b5664a 1748 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1749 break;
AndyA 22:0dd9c1b5664a 1750 #if LWIP_IGMP
AndyA 22:0dd9c1b5664a 1751 case IP_MULTICAST_TTL:
AndyA 22:0dd9c1b5664a 1752 *(u8_t*)optval = sock->conn->pcb.ip->ttl;
AndyA 22:0dd9c1b5664a 1753 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
AndyA 22:0dd9c1b5664a 1754 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1755 break;
AndyA 22:0dd9c1b5664a 1756 case IP_MULTICAST_IF:
AndyA 22:0dd9c1b5664a 1757 inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
AndyA 22:0dd9c1b5664a 1758 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
AndyA 22:0dd9c1b5664a 1759 s, *(u32_t *)optval));
AndyA 22:0dd9c1b5664a 1760 break;
AndyA 22:0dd9c1b5664a 1761 case IP_MULTICAST_LOOP:
AndyA 22:0dd9c1b5664a 1762 if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
AndyA 22:0dd9c1b5664a 1763 *(u8_t*)optval = 1;
AndyA 22:0dd9c1b5664a 1764 } else {
AndyA 22:0dd9c1b5664a 1765 *(u8_t*)optval = 0;
AndyA 22:0dd9c1b5664a 1766 }
AndyA 22:0dd9c1b5664a 1767 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
AndyA 22:0dd9c1b5664a 1768 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1769 break;
AndyA 22:0dd9c1b5664a 1770 #endif /* LWIP_IGMP */
AndyA 22:0dd9c1b5664a 1771 default:
AndyA 22:0dd9c1b5664a 1772 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 1773 break;
AndyA 22:0dd9c1b5664a 1774 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1775 break;
AndyA 22:0dd9c1b5664a 1776
AndyA 22:0dd9c1b5664a 1777 #if LWIP_TCP
AndyA 22:0dd9c1b5664a 1778 /* Level: IPPROTO_TCP */
AndyA 22:0dd9c1b5664a 1779 case IPPROTO_TCP:
AndyA 22:0dd9c1b5664a 1780 switch (optname) {
AndyA 22:0dd9c1b5664a 1781 case TCP_NODELAY:
AndyA 22:0dd9c1b5664a 1782 *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
AndyA 22:0dd9c1b5664a 1783 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
AndyA 22:0dd9c1b5664a 1784 s, (*(int*)optval)?"on":"off") );
AndyA 22:0dd9c1b5664a 1785 break;
AndyA 22:0dd9c1b5664a 1786 case TCP_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1787 *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
AndyA 22:0dd9c1b5664a 1788 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
AndyA 22:0dd9c1b5664a 1789 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1790 break;
AndyA 22:0dd9c1b5664a 1791
AndyA 22:0dd9c1b5664a 1792 #if LWIP_TCP_KEEPALIVE
AndyA 22:0dd9c1b5664a 1793 case TCP_KEEPIDLE:
AndyA 22:0dd9c1b5664a 1794 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
AndyA 22:0dd9c1b5664a 1795 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
AndyA 22:0dd9c1b5664a 1796 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1797 break;
AndyA 22:0dd9c1b5664a 1798 case TCP_KEEPINTVL:
AndyA 22:0dd9c1b5664a 1799 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
AndyA 22:0dd9c1b5664a 1800 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
AndyA 22:0dd9c1b5664a 1801 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1802 break;
AndyA 22:0dd9c1b5664a 1803 case TCP_KEEPCNT:
AndyA 22:0dd9c1b5664a 1804 *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
AndyA 22:0dd9c1b5664a 1805 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
AndyA 22:0dd9c1b5664a 1806 s, *(int *)optval));
AndyA 22:0dd9c1b5664a 1807 break;
AndyA 22:0dd9c1b5664a 1808 #endif /* LWIP_TCP_KEEPALIVE */
AndyA 22:0dd9c1b5664a 1809 default:
AndyA 22:0dd9c1b5664a 1810 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 1811 break;
AndyA 22:0dd9c1b5664a 1812 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1813 break;
AndyA 22:0dd9c1b5664a 1814 #endif /* LWIP_TCP */
AndyA 22:0dd9c1b5664a 1815 #if LWIP_UDP && LWIP_UDPLITE
AndyA 22:0dd9c1b5664a 1816 /* Level: IPPROTO_UDPLITE */
AndyA 22:0dd9c1b5664a 1817 case IPPROTO_UDPLITE:
AndyA 22:0dd9c1b5664a 1818 switch (optname) {
AndyA 22:0dd9c1b5664a 1819 case UDPLITE_SEND_CSCOV:
AndyA 22:0dd9c1b5664a 1820 *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
AndyA 22:0dd9c1b5664a 1821 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
AndyA 22:0dd9c1b5664a 1822 s, (*(int*)optval)) );
AndyA 22:0dd9c1b5664a 1823 break;
AndyA 22:0dd9c1b5664a 1824 case UDPLITE_RECV_CSCOV:
AndyA 22:0dd9c1b5664a 1825 *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
AndyA 22:0dd9c1b5664a 1826 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
AndyA 22:0dd9c1b5664a 1827 s, (*(int*)optval)) );
AndyA 22:0dd9c1b5664a 1828 break;
AndyA 22:0dd9c1b5664a 1829 default:
AndyA 22:0dd9c1b5664a 1830 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 1831 break;
AndyA 22:0dd9c1b5664a 1832 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1833 break;
AndyA 22:0dd9c1b5664a 1834 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 1835 default:
AndyA 22:0dd9c1b5664a 1836 LWIP_ASSERT("unhandled level", 0);
AndyA 22:0dd9c1b5664a 1837 break;
AndyA 22:0dd9c1b5664a 1838 } /* switch (level) */
AndyA 22:0dd9c1b5664a 1839 sys_sem_signal(&sock->conn->op_completed);
AndyA 22:0dd9c1b5664a 1840 }
AndyA 22:0dd9c1b5664a 1841
AndyA 22:0dd9c1b5664a 1842 int
AndyA 22:0dd9c1b5664a 1843 lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
AndyA 22:0dd9c1b5664a 1844 {
AndyA 22:0dd9c1b5664a 1845 struct lwip_sock *sock = get_socket(s);
AndyA 22:0dd9c1b5664a 1846 err_t err = ERR_OK;
AndyA 22:0dd9c1b5664a 1847 struct lwip_setgetsockopt_data data;
AndyA 22:0dd9c1b5664a 1848
AndyA 22:0dd9c1b5664a 1849 if (!sock) {
AndyA 22:0dd9c1b5664a 1850 return -1;
AndyA 22:0dd9c1b5664a 1851 }
AndyA 22:0dd9c1b5664a 1852
AndyA 22:0dd9c1b5664a 1853 if (NULL == optval) {
AndyA 22:0dd9c1b5664a 1854 sock_set_errno(sock, EFAULT);
AndyA 22:0dd9c1b5664a 1855 return -1;
AndyA 22:0dd9c1b5664a 1856 }
AndyA 22:0dd9c1b5664a 1857
AndyA 22:0dd9c1b5664a 1858 /* Do length and type checks for the various options first, to keep it readable. */
AndyA 22:0dd9c1b5664a 1859 switch (level) {
AndyA 22:0dd9c1b5664a 1860
AndyA 22:0dd9c1b5664a 1861 /* Level: SOL_SOCKET */
AndyA 22:0dd9c1b5664a 1862 case SOL_SOCKET:
AndyA 22:0dd9c1b5664a 1863 switch (optname) {
AndyA 22:0dd9c1b5664a 1864
AndyA 22:0dd9c1b5664a 1865 case SO_BROADCAST:
AndyA 22:0dd9c1b5664a 1866 /* UNIMPL case SO_DEBUG: */
AndyA 22:0dd9c1b5664a 1867 /* UNIMPL case SO_DONTROUTE: */
AndyA 22:0dd9c1b5664a 1868 case SO_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1869 /* UNIMPL case case SO_CONTIMEO: */
AndyA 22:0dd9c1b5664a 1870 /* UNIMPL case case SO_SNDTIMEO: */
AndyA 22:0dd9c1b5664a 1871 #if LWIP_SO_RCVTIMEO
AndyA 22:0dd9c1b5664a 1872 case SO_RCVTIMEO:
AndyA 22:0dd9c1b5664a 1873 #endif /* LWIP_SO_RCVTIMEO */
AndyA 22:0dd9c1b5664a 1874 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 1875 case SO_RCVBUF:
AndyA 22:0dd9c1b5664a 1876 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 1877 /* UNIMPL case SO_OOBINLINE: */
AndyA 22:0dd9c1b5664a 1878 /* UNIMPL case SO_SNDBUF: */
AndyA 22:0dd9c1b5664a 1879 /* UNIMPL case SO_RCVLOWAT: */
AndyA 22:0dd9c1b5664a 1880 /* UNIMPL case SO_SNDLOWAT: */
AndyA 22:0dd9c1b5664a 1881 #if SO_REUSE
AndyA 22:0dd9c1b5664a 1882 case SO_REUSEADDR:
AndyA 22:0dd9c1b5664a 1883 case SO_REUSEPORT:
AndyA 22:0dd9c1b5664a 1884 #endif /* SO_REUSE */
AndyA 22:0dd9c1b5664a 1885 /* UNIMPL case SO_USELOOPBACK: */
AndyA 22:0dd9c1b5664a 1886 if (optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1887 err = EINVAL;
AndyA 22:0dd9c1b5664a 1888 }
AndyA 22:0dd9c1b5664a 1889 break;
AndyA 22:0dd9c1b5664a 1890 case SO_NO_CHECK:
AndyA 22:0dd9c1b5664a 1891 if (optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1892 err = EINVAL;
AndyA 22:0dd9c1b5664a 1893 }
AndyA 22:0dd9c1b5664a 1894 #if LWIP_UDP
AndyA 22:0dd9c1b5664a 1895 if ((sock->conn->type != NETCONN_UDP) ||
AndyA 22:0dd9c1b5664a 1896 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
AndyA 22:0dd9c1b5664a 1897 /* this flag is only available for UDP, not for UDP lite */
AndyA 22:0dd9c1b5664a 1898 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1899 }
AndyA 22:0dd9c1b5664a 1900 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 1901 break;
AndyA 22:0dd9c1b5664a 1902 default:
AndyA 22:0dd9c1b5664a 1903 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1904 s, optname));
AndyA 22:0dd9c1b5664a 1905 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1906 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1907 break;
AndyA 22:0dd9c1b5664a 1908
AndyA 22:0dd9c1b5664a 1909 /* Level: IPPROTO_IP */
AndyA 22:0dd9c1b5664a 1910 case IPPROTO_IP:
AndyA 22:0dd9c1b5664a 1911 switch (optname) {
AndyA 22:0dd9c1b5664a 1912 /* UNIMPL case IP_HDRINCL: */
AndyA 22:0dd9c1b5664a 1913 /* UNIMPL case IP_RCVDSTADDR: */
AndyA 22:0dd9c1b5664a 1914 /* UNIMPL case IP_RCVIF: */
AndyA 22:0dd9c1b5664a 1915 case IP_TTL:
AndyA 22:0dd9c1b5664a 1916 case IP_TOS:
AndyA 22:0dd9c1b5664a 1917 if (optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1918 err = EINVAL;
AndyA 22:0dd9c1b5664a 1919 }
AndyA 22:0dd9c1b5664a 1920 break;
AndyA 22:0dd9c1b5664a 1921 #if LWIP_IGMP
AndyA 22:0dd9c1b5664a 1922 case IP_MULTICAST_TTL:
AndyA 22:0dd9c1b5664a 1923 if (optlen < sizeof(u8_t)) {
AndyA 22:0dd9c1b5664a 1924 err = EINVAL;
AndyA 22:0dd9c1b5664a 1925 }
AndyA 22:0dd9c1b5664a 1926 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AndyA 22:0dd9c1b5664a 1927 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1928 }
AndyA 22:0dd9c1b5664a 1929 break;
AndyA 22:0dd9c1b5664a 1930 case IP_MULTICAST_IF:
AndyA 22:0dd9c1b5664a 1931 if (optlen < sizeof(struct in_addr)) {
AndyA 22:0dd9c1b5664a 1932 err = EINVAL;
AndyA 22:0dd9c1b5664a 1933 }
AndyA 22:0dd9c1b5664a 1934 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AndyA 22:0dd9c1b5664a 1935 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1936 }
AndyA 22:0dd9c1b5664a 1937 break;
AndyA 22:0dd9c1b5664a 1938 case IP_MULTICAST_LOOP:
AndyA 22:0dd9c1b5664a 1939 if (optlen < sizeof(u8_t)) {
AndyA 22:0dd9c1b5664a 1940 err = EINVAL;
AndyA 22:0dd9c1b5664a 1941 }
AndyA 22:0dd9c1b5664a 1942 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AndyA 22:0dd9c1b5664a 1943 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1944 }
AndyA 22:0dd9c1b5664a 1945 break;
AndyA 22:0dd9c1b5664a 1946 case IP_ADD_MEMBERSHIP:
AndyA 22:0dd9c1b5664a 1947 case IP_DROP_MEMBERSHIP:
AndyA 22:0dd9c1b5664a 1948 if (optlen < sizeof(struct ip_mreq)) {
AndyA 22:0dd9c1b5664a 1949 err = EINVAL;
AndyA 22:0dd9c1b5664a 1950 }
AndyA 22:0dd9c1b5664a 1951 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AndyA 22:0dd9c1b5664a 1952 err = EAFNOSUPPORT;
AndyA 22:0dd9c1b5664a 1953 }
AndyA 22:0dd9c1b5664a 1954 break;
AndyA 22:0dd9c1b5664a 1955 #endif /* LWIP_IGMP */
AndyA 22:0dd9c1b5664a 1956 default:
AndyA 22:0dd9c1b5664a 1957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1958 s, optname));
AndyA 22:0dd9c1b5664a 1959 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1960 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1961 break;
AndyA 22:0dd9c1b5664a 1962
AndyA 22:0dd9c1b5664a 1963 #if LWIP_TCP
AndyA 22:0dd9c1b5664a 1964 /* Level: IPPROTO_TCP */
AndyA 22:0dd9c1b5664a 1965 case IPPROTO_TCP:
AndyA 22:0dd9c1b5664a 1966 if (optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1967 err = EINVAL;
AndyA 22:0dd9c1b5664a 1968 break;
AndyA 22:0dd9c1b5664a 1969 }
AndyA 22:0dd9c1b5664a 1970
AndyA 22:0dd9c1b5664a 1971 /* If this is no TCP socket, ignore any options. */
AndyA 22:0dd9c1b5664a 1972 if (sock->conn->type != NETCONN_TCP)
AndyA 22:0dd9c1b5664a 1973 return 0;
AndyA 22:0dd9c1b5664a 1974
AndyA 22:0dd9c1b5664a 1975 switch (optname) {
AndyA 22:0dd9c1b5664a 1976 case TCP_NODELAY:
AndyA 22:0dd9c1b5664a 1977 case TCP_KEEPALIVE:
AndyA 22:0dd9c1b5664a 1978 #if LWIP_TCP_KEEPALIVE
AndyA 22:0dd9c1b5664a 1979 case TCP_KEEPIDLE:
AndyA 22:0dd9c1b5664a 1980 case TCP_KEEPINTVL:
AndyA 22:0dd9c1b5664a 1981 case TCP_KEEPCNT:
AndyA 22:0dd9c1b5664a 1982 #endif /* LWIP_TCP_KEEPALIVE */
AndyA 22:0dd9c1b5664a 1983 break;
AndyA 22:0dd9c1b5664a 1984
AndyA 22:0dd9c1b5664a 1985 default:
AndyA 22:0dd9c1b5664a 1986 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 1987 s, optname));
AndyA 22:0dd9c1b5664a 1988 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 1989 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 1990 break;
AndyA 22:0dd9c1b5664a 1991 #endif /* LWIP_TCP */
AndyA 22:0dd9c1b5664a 1992 #if LWIP_UDP && LWIP_UDPLITE
AndyA 22:0dd9c1b5664a 1993 /* Level: IPPROTO_UDPLITE */
AndyA 22:0dd9c1b5664a 1994 case IPPROTO_UDPLITE:
AndyA 22:0dd9c1b5664a 1995 if (optlen < sizeof(int)) {
AndyA 22:0dd9c1b5664a 1996 err = EINVAL;
AndyA 22:0dd9c1b5664a 1997 break;
AndyA 22:0dd9c1b5664a 1998 }
AndyA 22:0dd9c1b5664a 1999
AndyA 22:0dd9c1b5664a 2000 /* If this is no UDP lite socket, ignore any options. */
AndyA 22:0dd9c1b5664a 2001 if (sock->conn->type != NETCONN_UDPLITE)
AndyA 22:0dd9c1b5664a 2002 return 0;
AndyA 22:0dd9c1b5664a 2003
AndyA 22:0dd9c1b5664a 2004 switch (optname) {
AndyA 22:0dd9c1b5664a 2005 case UDPLITE_SEND_CSCOV:
AndyA 22:0dd9c1b5664a 2006 case UDPLITE_RECV_CSCOV:
AndyA 22:0dd9c1b5664a 2007 break;
AndyA 22:0dd9c1b5664a 2008
AndyA 22:0dd9c1b5664a 2009 default:
AndyA 22:0dd9c1b5664a 2010 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 2011 s, optname));
AndyA 22:0dd9c1b5664a 2012 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 2013 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 2014 break;
AndyA 22:0dd9c1b5664a 2015 #endif /* LWIP_UDP && LWIP_UDPLITE */
AndyA 22:0dd9c1b5664a 2016 /* UNDEFINED LEVEL */
AndyA 22:0dd9c1b5664a 2017 default:
AndyA 22:0dd9c1b5664a 2018 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
AndyA 22:0dd9c1b5664a 2019 s, level, optname));
AndyA 22:0dd9c1b5664a 2020 err = ENOPROTOOPT;
AndyA 22:0dd9c1b5664a 2021 } /* switch (level) */
AndyA 22:0dd9c1b5664a 2022
AndyA 22:0dd9c1b5664a 2023
AndyA 22:0dd9c1b5664a 2024 if (err != ERR_OK) {
AndyA 22:0dd9c1b5664a 2025 sock_set_errno(sock, err);
AndyA 22:0dd9c1b5664a 2026 return -1;
AndyA 22:0dd9c1b5664a 2027 }
AndyA 22:0dd9c1b5664a 2028
AndyA 22:0dd9c1b5664a 2029
AndyA 22:0dd9c1b5664a 2030 /* Now do the actual option processing */
AndyA 22:0dd9c1b5664a 2031 data.sock = sock;
AndyA 22:0dd9c1b5664a 2032 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 2033 data.s = s;
AndyA 22:0dd9c1b5664a 2034 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 2035 data.level = level;
AndyA 22:0dd9c1b5664a 2036 data.optname = optname;
AndyA 22:0dd9c1b5664a 2037 data.optval = (void*)optval;
AndyA 22:0dd9c1b5664a 2038 data.optlen = &optlen;
AndyA 22:0dd9c1b5664a 2039 data.err = err;
AndyA 22:0dd9c1b5664a 2040 tcpip_callback(lwip_setsockopt_internal, &data);
AndyA 22:0dd9c1b5664a 2041 sys_arch_sem_wait(&sock->conn->op_completed, 0);
AndyA 22:0dd9c1b5664a 2042 /* maybe lwip_setsockopt_internal has changed err */
AndyA 22:0dd9c1b5664a 2043 err = data.err;
AndyA 22:0dd9c1b5664a 2044
AndyA 22:0dd9c1b5664a 2045 sock_set_errno(sock, err);
AndyA 22:0dd9c1b5664a 2046 return err ? -1 : 0;
AndyA 22:0dd9c1b5664a 2047 }
AndyA 22:0dd9c1b5664a 2048
AndyA 22:0dd9c1b5664a 2049 static void
AndyA 22:0dd9c1b5664a 2050 lwip_setsockopt_internal(void *arg)
AndyA 22:0dd9c1b5664a 2051 {
AndyA 22:0dd9c1b5664a 2052 struct lwip_sock *sock;
AndyA 22:0dd9c1b5664a 2053 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 2054 int s;
AndyA 22:0dd9c1b5664a 2055 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 2056 int level, optname;
AndyA 22:0dd9c1b5664a 2057 const void *optval;
AndyA 22:0dd9c1b5664a 2058 struct lwip_setgetsockopt_data *data;
AndyA 22:0dd9c1b5664a 2059
AndyA 22:0dd9c1b5664a 2060 LWIP_ASSERT("arg != NULL", arg != NULL);
AndyA 22:0dd9c1b5664a 2061
AndyA 22:0dd9c1b5664a 2062 data = (struct lwip_setgetsockopt_data*)arg;
AndyA 22:0dd9c1b5664a 2063 sock = data->sock;
AndyA 22:0dd9c1b5664a 2064 #ifdef LWIP_DEBUG
AndyA 22:0dd9c1b5664a 2065 s = data->s;
AndyA 22:0dd9c1b5664a 2066 #endif /* LWIP_DEBUG */
AndyA 22:0dd9c1b5664a 2067 level = data->level;
AndyA 22:0dd9c1b5664a 2068 optname = data->optname;
AndyA 22:0dd9c1b5664a 2069 optval = data->optval;
AndyA 22:0dd9c1b5664a 2070
AndyA 22:0dd9c1b5664a 2071 switch (level) {
AndyA 22:0dd9c1b5664a 2072
AndyA 22:0dd9c1b5664a 2073 /* Level: SOL_SOCKET */
AndyA 22:0dd9c1b5664a 2074 case SOL_SOCKET:
AndyA 22:0dd9c1b5664a 2075 switch (optname) {
AndyA 22:0dd9c1b5664a 2076
AndyA 22:0dd9c1b5664a 2077 /* The option flags */
AndyA 22:0dd9c1b5664a 2078 case SO_BROADCAST:
AndyA 22:0dd9c1b5664a 2079 /* UNIMPL case SO_DEBUG: */
AndyA 22:0dd9c1b5664a 2080 /* UNIMPL case SO_DONTROUTE: */
AndyA 22:0dd9c1b5664a 2081 case SO_KEEPALIVE:
AndyA 22:0dd9c1b5664a 2082 /* UNIMPL case SO_OOBINCLUDE: */
AndyA 22:0dd9c1b5664a 2083 #if SO_REUSE
AndyA 22:0dd9c1b5664a 2084 case SO_REUSEADDR:
AndyA 22:0dd9c1b5664a 2085 case SO_REUSEPORT:
AndyA 22:0dd9c1b5664a 2086 #endif /* SO_REUSE */
AndyA 22:0dd9c1b5664a 2087 /* UNIMPL case SO_USELOOPBACK: */
AndyA 22:0dd9c1b5664a 2088 if (*(int*)optval) {
AndyA 22:0dd9c1b5664a 2089 sock->conn->pcb.ip->so_options |= optname;
AndyA 22:0dd9c1b5664a 2090 } else {
AndyA 22:0dd9c1b5664a 2091 sock->conn->pcb.ip->so_options &= ~optname;
AndyA 22:0dd9c1b5664a 2092 }
AndyA 22:0dd9c1b5664a 2093 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
AndyA 22:0dd9c1b5664a 2094 s, optname, (*(int*)optval?"on":"off")));
AndyA 22:0dd9c1b5664a 2095 break;
AndyA 22:0dd9c1b5664a 2096 #if LWIP_SO_RCVTIMEO
AndyA 22:0dd9c1b5664a 2097 case SO_RCVTIMEO:
AndyA 22:0dd9c1b5664a 2098 netconn_set_recvtimeout(sock->conn, *(int*)optval);
AndyA 22:0dd9c1b5664a 2099 break;
AndyA 22:0dd9c1b5664a 2100 #endif /* LWIP_SO_RCVTIMEO */
AndyA 22:0dd9c1b5664a 2101 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 2102 case SO_RCVBUF:
AndyA 22:0dd9c1b5664a 2103 netconn_set_recvbufsize(sock->conn, *(int*)optval);
AndyA 22:0dd9c1b5664a 2104 break;
AndyA 22:0dd9c1b5664a 2105 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 2106 #if LWIP_UDP
AndyA 22:0dd9c1b5664a 2107 case SO_NO_CHECK:
AndyA 22:0dd9c1b5664a 2108 if (*(int*)optval) {
AndyA 22:0dd9c1b5664a 2109 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
AndyA 22:0dd9c1b5664a 2110 } else {
AndyA 22:0dd9c1b5664a 2111 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
AndyA 22:0dd9c1b5664a 2112 }
AndyA 22:0dd9c1b5664a 2113 break;
AndyA 22:0dd9c1b5664a 2114 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 2115 default:
AndyA 22:0dd9c1b5664a 2116 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 2117 break;
AndyA 22:0dd9c1b5664a 2118 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 2119 break;
AndyA 22:0dd9c1b5664a 2120
AndyA 22:0dd9c1b5664a 2121 /* Level: IPPROTO_IP */
AndyA 22:0dd9c1b5664a 2122 case IPPROTO_IP:
AndyA 22:0dd9c1b5664a 2123 switch (optname) {
AndyA 22:0dd9c1b5664a 2124 case IP_TTL:
AndyA 22:0dd9c1b5664a 2125 sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2126 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
AndyA 22:0dd9c1b5664a 2127 s, sock->conn->pcb.ip->ttl));
AndyA 22:0dd9c1b5664a 2128 break;
AndyA 22:0dd9c1b5664a 2129 case IP_TOS:
AndyA 22:0dd9c1b5664a 2130 sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2131 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
AndyA 22:0dd9c1b5664a 2132 s, sock->conn->pcb.ip->tos));
AndyA 22:0dd9c1b5664a 2133 break;
AndyA 22:0dd9c1b5664a 2134 #if LWIP_IGMP
AndyA 22:0dd9c1b5664a 2135 case IP_MULTICAST_TTL:
AndyA 22:0dd9c1b5664a 2136 sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
AndyA 22:0dd9c1b5664a 2137 break;
AndyA 22:0dd9c1b5664a 2138 case IP_MULTICAST_IF:
AndyA 22:0dd9c1b5664a 2139 inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
AndyA 22:0dd9c1b5664a 2140 break;
AndyA 22:0dd9c1b5664a 2141 case IP_MULTICAST_LOOP:
AndyA 22:0dd9c1b5664a 2142 if (*(u8_t*)optval) {
AndyA 22:0dd9c1b5664a 2143 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
AndyA 22:0dd9c1b5664a 2144 } else {
AndyA 22:0dd9c1b5664a 2145 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
AndyA 22:0dd9c1b5664a 2146 }
AndyA 22:0dd9c1b5664a 2147 break;
AndyA 22:0dd9c1b5664a 2148 case IP_ADD_MEMBERSHIP:
AndyA 22:0dd9c1b5664a 2149 case IP_DROP_MEMBERSHIP:
AndyA 22:0dd9c1b5664a 2150 {
AndyA 22:0dd9c1b5664a 2151 /* If this is a TCP or a RAW socket, ignore these options. */
AndyA 22:0dd9c1b5664a 2152 struct ip_mreq *imr = (struct ip_mreq *)optval;
AndyA 22:0dd9c1b5664a 2153 ip_addr_t if_addr;
AndyA 22:0dd9c1b5664a 2154 ip_addr_t multi_addr;
AndyA 22:0dd9c1b5664a 2155 inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
AndyA 22:0dd9c1b5664a 2156 inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
AndyA 22:0dd9c1b5664a 2157 if(optname == IP_ADD_MEMBERSHIP){
AndyA 22:0dd9c1b5664a 2158 data->err = igmp_joingroup(&if_addr, &multi_addr);
AndyA 22:0dd9c1b5664a 2159 } else {
AndyA 22:0dd9c1b5664a 2160 data->err = igmp_leavegroup(&if_addr, &multi_addr);
AndyA 22:0dd9c1b5664a 2161 }
AndyA 22:0dd9c1b5664a 2162 if(data->err != ERR_OK) {
AndyA 22:0dd9c1b5664a 2163 data->err = EADDRNOTAVAIL;
AndyA 22:0dd9c1b5664a 2164 }
AndyA 22:0dd9c1b5664a 2165 }
AndyA 22:0dd9c1b5664a 2166 break;
AndyA 22:0dd9c1b5664a 2167 #endif /* LWIP_IGMP */
AndyA 22:0dd9c1b5664a 2168 default:
AndyA 22:0dd9c1b5664a 2169 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 2170 break;
AndyA 22:0dd9c1b5664a 2171 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 2172 break;
AndyA 22:0dd9c1b5664a 2173
AndyA 22:0dd9c1b5664a 2174 #if LWIP_TCP
AndyA 22:0dd9c1b5664a 2175 /* Level: IPPROTO_TCP */
AndyA 22:0dd9c1b5664a 2176 case IPPROTO_TCP:
AndyA 22:0dd9c1b5664a 2177 switch (optname) {
AndyA 22:0dd9c1b5664a 2178 case TCP_NODELAY:
AndyA 22:0dd9c1b5664a 2179 if (*(int*)optval) {
AndyA 22:0dd9c1b5664a 2180 tcp_nagle_disable(sock->conn->pcb.tcp);
AndyA 22:0dd9c1b5664a 2181 } else {
AndyA 22:0dd9c1b5664a 2182 tcp_nagle_enable(sock->conn->pcb.tcp);
AndyA 22:0dd9c1b5664a 2183 }
AndyA 22:0dd9c1b5664a 2184 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
AndyA 22:0dd9c1b5664a 2185 s, (*(int *)optval)?"on":"off") );
AndyA 22:0dd9c1b5664a 2186 break;
AndyA 22:0dd9c1b5664a 2187 case TCP_KEEPALIVE:
AndyA 22:0dd9c1b5664a 2188 sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2189 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
AndyA 22:0dd9c1b5664a 2190 s, sock->conn->pcb.tcp->keep_idle));
AndyA 22:0dd9c1b5664a 2191 break;
AndyA 22:0dd9c1b5664a 2192
AndyA 22:0dd9c1b5664a 2193 #if LWIP_TCP_KEEPALIVE
AndyA 22:0dd9c1b5664a 2194 case TCP_KEEPIDLE:
AndyA 22:0dd9c1b5664a 2195 sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2196 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
AndyA 22:0dd9c1b5664a 2197 s, sock->conn->pcb.tcp->keep_idle));
AndyA 22:0dd9c1b5664a 2198 break;
AndyA 22:0dd9c1b5664a 2199 case TCP_KEEPINTVL:
AndyA 22:0dd9c1b5664a 2200 sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2201 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
AndyA 22:0dd9c1b5664a 2202 s, sock->conn->pcb.tcp->keep_intvl));
AndyA 22:0dd9c1b5664a 2203 break;
AndyA 22:0dd9c1b5664a 2204 case TCP_KEEPCNT:
AndyA 22:0dd9c1b5664a 2205 sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
AndyA 22:0dd9c1b5664a 2206 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
AndyA 22:0dd9c1b5664a 2207 s, sock->conn->pcb.tcp->keep_cnt));
AndyA 22:0dd9c1b5664a 2208 break;
AndyA 22:0dd9c1b5664a 2209 #endif /* LWIP_TCP_KEEPALIVE */
AndyA 22:0dd9c1b5664a 2210 default:
AndyA 22:0dd9c1b5664a 2211 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 2212 break;
AndyA 22:0dd9c1b5664a 2213 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 2214 break;
AndyA 22:0dd9c1b5664a 2215 #endif /* LWIP_TCP*/
AndyA 22:0dd9c1b5664a 2216 #if LWIP_UDP && LWIP_UDPLITE
AndyA 22:0dd9c1b5664a 2217 /* Level: IPPROTO_UDPLITE */
AndyA 22:0dd9c1b5664a 2218 case IPPROTO_UDPLITE:
AndyA 22:0dd9c1b5664a 2219 switch (optname) {
AndyA 22:0dd9c1b5664a 2220 case UDPLITE_SEND_CSCOV:
AndyA 22:0dd9c1b5664a 2221 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
AndyA 22:0dd9c1b5664a 2222 /* don't allow illegal values! */
AndyA 22:0dd9c1b5664a 2223 sock->conn->pcb.udp->chksum_len_tx = 8;
AndyA 22:0dd9c1b5664a 2224 } else {
AndyA 22:0dd9c1b5664a 2225 sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
AndyA 22:0dd9c1b5664a 2226 }
AndyA 22:0dd9c1b5664a 2227 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
AndyA 22:0dd9c1b5664a 2228 s, (*(int*)optval)) );
AndyA 22:0dd9c1b5664a 2229 break;
AndyA 22:0dd9c1b5664a 2230 case UDPLITE_RECV_CSCOV:
AndyA 22:0dd9c1b5664a 2231 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
AndyA 22:0dd9c1b5664a 2232 /* don't allow illegal values! */
AndyA 22:0dd9c1b5664a 2233 sock->conn->pcb.udp->chksum_len_rx = 8;
AndyA 22:0dd9c1b5664a 2234 } else {
AndyA 22:0dd9c1b5664a 2235 sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
AndyA 22:0dd9c1b5664a 2236 }
AndyA 22:0dd9c1b5664a 2237 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
AndyA 22:0dd9c1b5664a 2238 s, (*(int*)optval)) );
AndyA 22:0dd9c1b5664a 2239 break;
AndyA 22:0dd9c1b5664a 2240 default:
AndyA 22:0dd9c1b5664a 2241 LWIP_ASSERT("unhandled optname", 0);
AndyA 22:0dd9c1b5664a 2242 break;
AndyA 22:0dd9c1b5664a 2243 } /* switch (optname) */
AndyA 22:0dd9c1b5664a 2244 break;
AndyA 22:0dd9c1b5664a 2245 #endif /* LWIP_UDP */
AndyA 22:0dd9c1b5664a 2246 default:
AndyA 22:0dd9c1b5664a 2247 LWIP_ASSERT("unhandled level", 0);
AndyA 22:0dd9c1b5664a 2248 break;
AndyA 22:0dd9c1b5664a 2249 } /* switch (level) */
AndyA 22:0dd9c1b5664a 2250 sys_sem_signal(&sock->conn->op_completed);
AndyA 22:0dd9c1b5664a 2251 }
AndyA 22:0dd9c1b5664a 2252
AndyA 22:0dd9c1b5664a 2253 int
AndyA 22:0dd9c1b5664a 2254 lwip_ioctl(int s, long cmd, void *argp)
AndyA 22:0dd9c1b5664a 2255 {
AndyA 22:0dd9c1b5664a 2256 struct lwip_sock *sock = get_socket(s);
AndyA 22:0dd9c1b5664a 2257 u8_t val;
AndyA 22:0dd9c1b5664a 2258 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 2259 u16_t buflen = 0;
AndyA 22:0dd9c1b5664a 2260 s16_t recv_avail;
AndyA 22:0dd9c1b5664a 2261 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 2262
AndyA 22:0dd9c1b5664a 2263 if (!sock) {
AndyA 22:0dd9c1b5664a 2264 return -1;
AndyA 22:0dd9c1b5664a 2265 }
AndyA 22:0dd9c1b5664a 2266
AndyA 22:0dd9c1b5664a 2267 switch (cmd) {
AndyA 22:0dd9c1b5664a 2268 #if LWIP_SO_RCVBUF
AndyA 22:0dd9c1b5664a 2269 case FIONREAD:
AndyA 22:0dd9c1b5664a 2270 if (!argp) {
AndyA 22:0dd9c1b5664a 2271 sock_set_errno(sock, EINVAL);
AndyA 22:0dd9c1b5664a 2272 return -1;
AndyA 22:0dd9c1b5664a 2273 }
AndyA 22:0dd9c1b5664a 2274
AndyA 22:0dd9c1b5664a 2275 SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
AndyA 22:0dd9c1b5664a 2276 if (recv_avail < 0) {
AndyA 22:0dd9c1b5664a 2277 recv_avail = 0;
AndyA 22:0dd9c1b5664a 2278 }
AndyA 22:0dd9c1b5664a 2279 *((u16_t*)argp) = (u16_t)recv_avail;
AndyA 22:0dd9c1b5664a 2280
AndyA 22:0dd9c1b5664a 2281 /* Check if there is data left from the last recv operation. /maq 041215 */
AndyA 22:0dd9c1b5664a 2282 if (sock->lastdata) {
AndyA 22:0dd9c1b5664a 2283 struct pbuf *p = (struct pbuf *)sock->lastdata;
AndyA 22:0dd9c1b5664a 2284 if (netconn_type(sock->conn) != NETCONN_TCP) {
AndyA 22:0dd9c1b5664a 2285 p = ((struct netbuf *)p)->p;
AndyA 22:0dd9c1b5664a 2286 }
AndyA 22:0dd9c1b5664a 2287 buflen = p->tot_len;
AndyA 22:0dd9c1b5664a 2288 buflen -= sock->lastoffset;
AndyA 22:0dd9c1b5664a 2289
AndyA 22:0dd9c1b5664a 2290 *((u16_t*)argp) += buflen;
AndyA 22:0dd9c1b5664a 2291 }
AndyA 22:0dd9c1b5664a 2292
AndyA 22:0dd9c1b5664a 2293 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
AndyA 22:0dd9c1b5664a 2294 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 2295 return 0;
AndyA 22:0dd9c1b5664a 2296 #endif /* LWIP_SO_RCVBUF */
AndyA 22:0dd9c1b5664a 2297
AndyA 22:0dd9c1b5664a 2298 case FIONBIO:
AndyA 22:0dd9c1b5664a 2299 val = 0;
AndyA 22:0dd9c1b5664a 2300 if (argp && *(u32_t*)argp) {
AndyA 22:0dd9c1b5664a 2301 val = 1;
AndyA 22:0dd9c1b5664a 2302 }
AndyA 22:0dd9c1b5664a 2303 netconn_set_nonblocking(sock->conn, val);
AndyA 22:0dd9c1b5664a 2304 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
AndyA 22:0dd9c1b5664a 2305 sock_set_errno(sock, 0);
AndyA 22:0dd9c1b5664a 2306 return 0;
AndyA 22:0dd9c1b5664a 2307
AndyA 22:0dd9c1b5664a 2308 default:
AndyA 22:0dd9c1b5664a 2309 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
AndyA 22:0dd9c1b5664a 2310 sock_set_errno(sock, ENOSYS); /* not yet implemented */
AndyA 22:0dd9c1b5664a 2311 return -1;
AndyA 22:0dd9c1b5664a 2312 } /* switch (cmd) */
AndyA 22:0dd9c1b5664a 2313 }
AndyA 22:0dd9c1b5664a 2314
AndyA 22:0dd9c1b5664a 2315 /** A minimal implementation of fcntl.
AndyA 22:0dd9c1b5664a 2316 * Currently only the commands F_GETFL and F_SETFL are implemented.
AndyA 22:0dd9c1b5664a 2317 * Only the flag O_NONBLOCK is implemented.
AndyA 22:0dd9c1b5664a 2318 */
AndyA 22:0dd9c1b5664a 2319 int
AndyA 22:0dd9c1b5664a 2320 lwip_fcntl(int s, int cmd, int val)
AndyA 22:0dd9c1b5664a 2321 {
AndyA 22:0dd9c1b5664a 2322 struct lwip_sock *sock = get_socket(s);
AndyA 22:0dd9c1b5664a 2323 int ret = -1;
AndyA 22:0dd9c1b5664a 2324
AndyA 22:0dd9c1b5664a 2325 if (!sock || !sock->conn) {
AndyA 22:0dd9c1b5664a 2326 return -1;
AndyA 22:0dd9c1b5664a 2327 }
AndyA 22:0dd9c1b5664a 2328
AndyA 22:0dd9c1b5664a 2329 switch (cmd) {
AndyA 22:0dd9c1b5664a 2330 case F_GETFL:
AndyA 22:0dd9c1b5664a 2331 ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
AndyA 22:0dd9c1b5664a 2332 break;
AndyA 22:0dd9c1b5664a 2333 case F_SETFL:
AndyA 22:0dd9c1b5664a 2334 if ((val & ~O_NONBLOCK) == 0) {
AndyA 22:0dd9c1b5664a 2335 /* only O_NONBLOCK, all other bits are zero */
AndyA 22:0dd9c1b5664a 2336 netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
AndyA 22:0dd9c1b5664a 2337 ret = 0;
AndyA 22:0dd9c1b5664a 2338 }
AndyA 22:0dd9c1b5664a 2339 break;
AndyA 22:0dd9c1b5664a 2340 default:
AndyA 22:0dd9c1b5664a 2341 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
AndyA 22:0dd9c1b5664a 2342 break;
AndyA 22:0dd9c1b5664a 2343 }
AndyA 22:0dd9c1b5664a 2344 return ret;
AndyA 22:0dd9c1b5664a 2345 }
AndyA 22:0dd9c1b5664a 2346
AndyA 22:0dd9c1b5664a 2347 #endif /* LWIP_SOCKET */