David Smart / lwip

minor derivative to reduce compiler warnings and tag read-only parameters as const.

Dependents:   EthernetInterface

Fork of lwip by mbed official

api/sockets.c@0:51ac1d130fd4, 2012-06-22 (annotated)

Committer:
mbed_official
Date:
Fri Jun 22 09:25:39 2012 +0000
Revision:
0:51ac1d130fd4
Child:
21:d78ed585db09
Initial import from lwip-1.4.0: http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:51ac1d130fd4 1 /**
mbed_official 0:51ac1d130fd4 2 * @file
mbed_official 0:51ac1d130fd4 3 * Sockets BSD-Like API module
mbed_official 0:51ac1d130fd4 4 *
mbed_official 0:51ac1d130fd4 5 */
mbed_official 0:51ac1d130fd4 6
mbed_official 0:51ac1d130fd4 7 /*
mbed_official 0:51ac1d130fd4 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
mbed_official 0:51ac1d130fd4 9 * All rights reserved.
mbed_official 0:51ac1d130fd4 10 *
mbed_official 0:51ac1d130fd4 11 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 0:51ac1d130fd4 12 * are permitted provided that the following conditions are met:
mbed_official 0:51ac1d130fd4 13 *
mbed_official 0:51ac1d130fd4 14 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 0:51ac1d130fd4 15 * this list of conditions and the following disclaimer.
mbed_official 0:51ac1d130fd4 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 0:51ac1d130fd4 17 * this list of conditions and the following disclaimer in the documentation
mbed_official 0:51ac1d130fd4 18 * and/or other materials provided with the distribution.
mbed_official 0:51ac1d130fd4 19 * 3. The name of the author may not be used to endorse or promote products
mbed_official 0:51ac1d130fd4 20 * derived from this software without specific prior written permission.
mbed_official 0:51ac1d130fd4 21 *
mbed_official 0:51ac1d130fd4 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
mbed_official 0:51ac1d130fd4 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official 0:51ac1d130fd4 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
mbed_official 0:51ac1d130fd4 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mbed_official 0:51ac1d130fd4 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
mbed_official 0:51ac1d130fd4 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 0:51ac1d130fd4 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 0:51ac1d130fd4 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
mbed_official 0:51ac1d130fd4 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
mbed_official 0:51ac1d130fd4 31 * OF SUCH DAMAGE.
mbed_official 0:51ac1d130fd4 32 *
mbed_official 0:51ac1d130fd4 33 * This file is part of the lwIP TCP/IP stack.
mbed_official 0:51ac1d130fd4 34 *
mbed_official 0:51ac1d130fd4 35 * Author: Adam Dunkels <adam@sics.se>
mbed_official 0:51ac1d130fd4 36 *
mbed_official 0:51ac1d130fd4 37 * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
mbed_official 0:51ac1d130fd4 38 *
mbed_official 0:51ac1d130fd4 39 */
mbed_official 0:51ac1d130fd4 40
mbed_official 0:51ac1d130fd4 41 #include "lwip/opt.h"
mbed_official 0:51ac1d130fd4 42
mbed_official 0:51ac1d130fd4 43 #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
mbed_official 0:51ac1d130fd4 44
mbed_official 0:51ac1d130fd4 45 #include "lwip/sockets.h"
mbed_official 0:51ac1d130fd4 46 #include "lwip/api.h"
mbed_official 0:51ac1d130fd4 47 #include "lwip/sys.h"
mbed_official 0:51ac1d130fd4 48 #include "lwip/igmp.h"
mbed_official 0:51ac1d130fd4 49 #include "lwip/inet.h"
mbed_official 0:51ac1d130fd4 50 #include "lwip/tcp.h"
mbed_official 0:51ac1d130fd4 51 #include "lwip/raw.h"
mbed_official 0:51ac1d130fd4 52 #include "lwip/udp.h"
mbed_official 0:51ac1d130fd4 53 #include "lwip/tcpip.h"
mbed_official 0:51ac1d130fd4 54 #include "lwip/pbuf.h"
mbed_official 0:51ac1d130fd4 55 #if LWIP_CHECKSUM_ON_COPY
mbed_official 0:51ac1d130fd4 56 #include "lwip/inet_chksum.h"
mbed_official 0:51ac1d130fd4 57 #endif
mbed_official 0:51ac1d130fd4 58
mbed_official 0:51ac1d130fd4 59 #include <string.h>
mbed_official 0:51ac1d130fd4 60
mbed_official 0:51ac1d130fd4 61 #define NUM_SOCKETS MEMP_NUM_NETCONN
mbed_official 0:51ac1d130fd4 62
mbed_official 0:51ac1d130fd4 63 /** Contains all internal pointers and states used for a socket */
mbed_official 0:51ac1d130fd4 64 struct lwip_sock {
mbed_official 0:51ac1d130fd4 65 /** sockets currently are built on netconns, each socket has one netconn */
mbed_official 0:51ac1d130fd4 66 struct netconn *conn;
mbed_official 0:51ac1d130fd4 67 /** data that was left from the previous read */
mbed_official 0:51ac1d130fd4 68 void *lastdata;
mbed_official 0:51ac1d130fd4 69 /** offset in the data that was left from the previous read */
mbed_official 0:51ac1d130fd4 70 u16_t lastoffset;
mbed_official 0:51ac1d130fd4 71 /** number of times data was received, set by event_callback(),
mbed_official 0:51ac1d130fd4 72 tested by the receive and select functions */
mbed_official 0:51ac1d130fd4 73 s16_t rcvevent;
mbed_official 0:51ac1d130fd4 74 /** number of times data was ACKed (free send buffer), set by event_callback(),
mbed_official 0:51ac1d130fd4 75 tested by select */
mbed_official 0:51ac1d130fd4 76 u16_t sendevent;
mbed_official 0:51ac1d130fd4 77 /** error happened for this socket, set by event_callback(), tested by select */
mbed_official 0:51ac1d130fd4 78 u16_t errevent;
mbed_official 0:51ac1d130fd4 79 /** last error that occurred on this socket */
mbed_official 0:51ac1d130fd4 80 int err;
mbed_official 0:51ac1d130fd4 81 /** counter of how many threads are waiting for this socket using select */
mbed_official 0:51ac1d130fd4 82 int select_waiting;
mbed_official 0:51ac1d130fd4 83 };
mbed_official 0:51ac1d130fd4 84
mbed_official 0:51ac1d130fd4 85 /** Description for a task waiting in select */
mbed_official 0:51ac1d130fd4 86 struct lwip_select_cb {
mbed_official 0:51ac1d130fd4 87 /** Pointer to the next waiting task */
mbed_official 0:51ac1d130fd4 88 struct lwip_select_cb *next;
mbed_official 0:51ac1d130fd4 89 /** Pointer to the previous waiting task */
mbed_official 0:51ac1d130fd4 90 struct lwip_select_cb *prev;
mbed_official 0:51ac1d130fd4 91 /** readset passed to select */
mbed_official 0:51ac1d130fd4 92 fd_set *readset;
mbed_official 0:51ac1d130fd4 93 /** writeset passed to select */
mbed_official 0:51ac1d130fd4 94 fd_set *writeset;
mbed_official 0:51ac1d130fd4 95 /** unimplemented: exceptset passed to select */
mbed_official 0:51ac1d130fd4 96 fd_set *exceptset;
mbed_official 0:51ac1d130fd4 97 /** don't signal the same semaphore twice: set to 1 when signalled */
mbed_official 0:51ac1d130fd4 98 int sem_signalled;
mbed_official 0:51ac1d130fd4 99 /** semaphore to wake up a task waiting for select */
mbed_official 0:51ac1d130fd4 100 sys_sem_t sem;
mbed_official 0:51ac1d130fd4 101 };
mbed_official 0:51ac1d130fd4 102
mbed_official 0:51ac1d130fd4 103 /** This struct is used to pass data to the set/getsockopt_internal
mbed_official 0:51ac1d130fd4 104 * functions running in tcpip_thread context (only a void* is allowed) */
mbed_official 0:51ac1d130fd4 105 struct lwip_setgetsockopt_data {
mbed_official 0:51ac1d130fd4 106 /** socket struct for which to change options */
mbed_official 0:51ac1d130fd4 107 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 108 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 109 /** socket index for which to change options */
mbed_official 0:51ac1d130fd4 110 int s;
mbed_official 0:51ac1d130fd4 111 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 112 /** level of the option to process */
mbed_official 0:51ac1d130fd4 113 int level;
mbed_official 0:51ac1d130fd4 114 /** name of the option to process */
mbed_official 0:51ac1d130fd4 115 int optname;
mbed_official 0:51ac1d130fd4 116 /** set: value to set the option to
mbed_official 0:51ac1d130fd4 117 * get: value of the option is stored here */
mbed_official 0:51ac1d130fd4 118 void *optval;
mbed_official 0:51ac1d130fd4 119 /** size of *optval */
mbed_official 0:51ac1d130fd4 120 socklen_t *optlen;
mbed_official 0:51ac1d130fd4 121 /** if an error occures, it is temporarily stored here */
mbed_official 0:51ac1d130fd4 122 err_t err;
mbed_official 0:51ac1d130fd4 123 };
mbed_official 0:51ac1d130fd4 124
mbed_official 0:51ac1d130fd4 125 /** The global array of available sockets */
mbed_official 0:51ac1d130fd4 126 static struct lwip_sock sockets[NUM_SOCKETS];
mbed_official 0:51ac1d130fd4 127 /** The global list of tasks waiting for select */
mbed_official 0:51ac1d130fd4 128 static struct lwip_select_cb *select_cb_list;
mbed_official 0:51ac1d130fd4 129 /** This counter is increased from lwip_select when the list is chagned
mbed_official 0:51ac1d130fd4 130 and checked in event_callback to see if it has changed. */
mbed_official 0:51ac1d130fd4 131 static volatile int select_cb_ctr;
mbed_official 0:51ac1d130fd4 132
mbed_official 0:51ac1d130fd4 133 /** Table to quickly map an lwIP error (err_t) to a socket error
mbed_official 0:51ac1d130fd4 134 * by using -err as an index */
mbed_official 0:51ac1d130fd4 135 static const int err_to_errno_table[] = {
mbed_official 0:51ac1d130fd4 136 0, /* ERR_OK 0 No error, everything OK. */
mbed_official 0:51ac1d130fd4 137 ENOMEM, /* ERR_MEM -1 Out of memory error. */
mbed_official 0:51ac1d130fd4 138 ENOBUFS, /* ERR_BUF -2 Buffer error. */
mbed_official 0:51ac1d130fd4 139 EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
mbed_official 0:51ac1d130fd4 140 EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
mbed_official 0:51ac1d130fd4 141 EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
mbed_official 0:51ac1d130fd4 142 EINVAL, /* ERR_VAL -6 Illegal value. */
mbed_official 0:51ac1d130fd4 143 EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
mbed_official 0:51ac1d130fd4 144 EADDRINUSE, /* ERR_USE -8 Address in use. */
mbed_official 0:51ac1d130fd4 145 EALREADY, /* ERR_ISCONN -9 Already connected. */
mbed_official 0:51ac1d130fd4 146 ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
mbed_official 0:51ac1d130fd4 147 ECONNRESET, /* ERR_RST -11 Connection reset. */
mbed_official 0:51ac1d130fd4 148 ENOTCONN, /* ERR_CLSD -12 Connection closed. */
mbed_official 0:51ac1d130fd4 149 ENOTCONN, /* ERR_CONN -13 Not connected. */
mbed_official 0:51ac1d130fd4 150 EIO, /* ERR_ARG -14 Illegal argument. */
mbed_official 0:51ac1d130fd4 151 -1, /* ERR_IF -15 Low-level netif error */
mbed_official 0:51ac1d130fd4 152 };
mbed_official 0:51ac1d130fd4 153
mbed_official 0:51ac1d130fd4 154 #define ERR_TO_ERRNO_TABLE_SIZE \
mbed_official 0:51ac1d130fd4 155 (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
mbed_official 0:51ac1d130fd4 156
mbed_official 0:51ac1d130fd4 157 #define err_to_errno(err) \
mbed_official 0:51ac1d130fd4 158 ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
mbed_official 0:51ac1d130fd4 159 err_to_errno_table[-(err)] : EIO)
mbed_official 0:51ac1d130fd4 160
mbed_official 0:51ac1d130fd4 161 #ifdef ERRNO
mbed_official 0:51ac1d130fd4 162 #ifndef set_errno
mbed_official 0:51ac1d130fd4 163 #define set_errno(err) errno = (err)
mbed_official 0:51ac1d130fd4 164 #endif
mbed_official 0:51ac1d130fd4 165 #else /* ERRNO */
mbed_official 0:51ac1d130fd4 166 #define set_errno(err)
mbed_official 0:51ac1d130fd4 167 #endif /* ERRNO */
mbed_official 0:51ac1d130fd4 168
mbed_official 0:51ac1d130fd4 169 #define sock_set_errno(sk, e) do { \
mbed_official 0:51ac1d130fd4 170 sk->err = (e); \
mbed_official 0:51ac1d130fd4 171 set_errno(sk->err); \
mbed_official 0:51ac1d130fd4 172 } while (0)
mbed_official 0:51ac1d130fd4 173
mbed_official 0:51ac1d130fd4 174 /* Forward delcaration of some functions */
mbed_official 0:51ac1d130fd4 175 static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
mbed_official 0:51ac1d130fd4 176 static void lwip_getsockopt_internal(void *arg);
mbed_official 0:51ac1d130fd4 177 static void lwip_setsockopt_internal(void *arg);
mbed_official 0:51ac1d130fd4 178
mbed_official 0:51ac1d130fd4 179 /**
mbed_official 0:51ac1d130fd4 180 * Initialize this module. This function has to be called before any other
mbed_official 0:51ac1d130fd4 181 * functions in this module!
mbed_official 0:51ac1d130fd4 182 */
mbed_official 0:51ac1d130fd4 183 void
mbed_official 0:51ac1d130fd4 184 lwip_socket_init(void)
mbed_official 0:51ac1d130fd4 185 {
mbed_official 0:51ac1d130fd4 186 }
mbed_official 0:51ac1d130fd4 187
mbed_official 0:51ac1d130fd4 188 /**
mbed_official 0:51ac1d130fd4 189 * Map a externally used socket index to the internal socket representation.
mbed_official 0:51ac1d130fd4 190 *
mbed_official 0:51ac1d130fd4 191 * @param s externally used socket index
mbed_official 0:51ac1d130fd4 192 * @return struct lwip_sock for the socket or NULL if not found
mbed_official 0:51ac1d130fd4 193 */
mbed_official 0:51ac1d130fd4 194 static struct lwip_sock *
mbed_official 0:51ac1d130fd4 195 get_socket(int s)
mbed_official 0:51ac1d130fd4 196 {
mbed_official 0:51ac1d130fd4 197 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 198
mbed_official 0:51ac1d130fd4 199 if ((s < 0) || (s >= NUM_SOCKETS)) {
mbed_official 0:51ac1d130fd4 200 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
mbed_official 0:51ac1d130fd4 201 set_errno(EBADF);
mbed_official 0:51ac1d130fd4 202 return NULL;
mbed_official 0:51ac1d130fd4 203 }
mbed_official 0:51ac1d130fd4 204
mbed_official 0:51ac1d130fd4 205 sock = &sockets[s];
mbed_official 0:51ac1d130fd4 206
mbed_official 0:51ac1d130fd4 207 if (!sock->conn) {
mbed_official 0:51ac1d130fd4 208 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
mbed_official 0:51ac1d130fd4 209 set_errno(EBADF);
mbed_official 0:51ac1d130fd4 210 return NULL;
mbed_official 0:51ac1d130fd4 211 }
mbed_official 0:51ac1d130fd4 212
mbed_official 0:51ac1d130fd4 213 return sock;
mbed_official 0:51ac1d130fd4 214 }
mbed_official 0:51ac1d130fd4 215
mbed_official 0:51ac1d130fd4 216 /**
mbed_official 0:51ac1d130fd4 217 * Same as get_socket but doesn't set errno
mbed_official 0:51ac1d130fd4 218 *
mbed_official 0:51ac1d130fd4 219 * @param s externally used socket index
mbed_official 0:51ac1d130fd4 220 * @return struct lwip_sock for the socket or NULL if not found
mbed_official 0:51ac1d130fd4 221 */
mbed_official 0:51ac1d130fd4 222 static struct lwip_sock *
mbed_official 0:51ac1d130fd4 223 tryget_socket(int s)
mbed_official 0:51ac1d130fd4 224 {
mbed_official 0:51ac1d130fd4 225 if ((s < 0) || (s >= NUM_SOCKETS)) {
mbed_official 0:51ac1d130fd4 226 return NULL;
mbed_official 0:51ac1d130fd4 227 }
mbed_official 0:51ac1d130fd4 228 if (!sockets[s].conn) {
mbed_official 0:51ac1d130fd4 229 return NULL;
mbed_official 0:51ac1d130fd4 230 }
mbed_official 0:51ac1d130fd4 231 return &sockets[s];
mbed_official 0:51ac1d130fd4 232 }
mbed_official 0:51ac1d130fd4 233
mbed_official 0:51ac1d130fd4 234 /**
mbed_official 0:51ac1d130fd4 235 * Allocate a new socket for a given netconn.
mbed_official 0:51ac1d130fd4 236 *
mbed_official 0:51ac1d130fd4 237 * @param newconn the netconn for which to allocate a socket
mbed_official 0:51ac1d130fd4 238 * @param accepted 1 if socket has been created by accept(),
mbed_official 0:51ac1d130fd4 239 * 0 if socket has been created by socket()
mbed_official 0:51ac1d130fd4 240 * @return the index of the new socket; -1 on error
mbed_official 0:51ac1d130fd4 241 */
mbed_official 0:51ac1d130fd4 242 static int
mbed_official 0:51ac1d130fd4 243 alloc_socket(struct netconn *newconn, int accepted)
mbed_official 0:51ac1d130fd4 244 {
mbed_official 0:51ac1d130fd4 245 int i;
mbed_official 0:51ac1d130fd4 246 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 247
mbed_official 0:51ac1d130fd4 248 /* allocate a new socket identifier */
mbed_official 0:51ac1d130fd4 249 for (i = 0; i < NUM_SOCKETS; ++i) {
mbed_official 0:51ac1d130fd4 250 /* Protect socket array */
mbed_official 0:51ac1d130fd4 251 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 252 if (!sockets[i].conn) {
mbed_official 0:51ac1d130fd4 253 sockets[i].conn = newconn;
mbed_official 0:51ac1d130fd4 254 /* The socket is not yet known to anyone, so no need to protect
mbed_official 0:51ac1d130fd4 255 after having marked it as used. */
mbed_official 0:51ac1d130fd4 256 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 257 sockets[i].lastdata = NULL;
mbed_official 0:51ac1d130fd4 258 sockets[i].lastoffset = 0;
mbed_official 0:51ac1d130fd4 259 sockets[i].rcvevent = 0;
mbed_official 0:51ac1d130fd4 260 /* TCP sendbuf is empty, but the socket is not yet writable until connected
mbed_official 0:51ac1d130fd4 261 * (unless it has been created by accept()). */
mbed_official 0:51ac1d130fd4 262 sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
mbed_official 0:51ac1d130fd4 263 sockets[i].errevent = 0;
mbed_official 0:51ac1d130fd4 264 sockets[i].err = 0;
mbed_official 0:51ac1d130fd4 265 sockets[i].select_waiting = 0;
mbed_official 0:51ac1d130fd4 266 return i;
mbed_official 0:51ac1d130fd4 267 }
mbed_official 0:51ac1d130fd4 268 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 269 }
mbed_official 0:51ac1d130fd4 270 return -1;
mbed_official 0:51ac1d130fd4 271 }
mbed_official 0:51ac1d130fd4 272
mbed_official 0:51ac1d130fd4 273 /** Free a socket. The socket's netconn must have been
mbed_official 0:51ac1d130fd4 274 * delete before!
mbed_official 0:51ac1d130fd4 275 *
mbed_official 0:51ac1d130fd4 276 * @param sock the socket to free
mbed_official 0:51ac1d130fd4 277 * @param is_tcp != 0 for TCP sockets, used to free lastdata
mbed_official 0:51ac1d130fd4 278 */
mbed_official 0:51ac1d130fd4 279 static void
mbed_official 0:51ac1d130fd4 280 free_socket(struct lwip_sock *sock, int is_tcp)
mbed_official 0:51ac1d130fd4 281 {
mbed_official 0:51ac1d130fd4 282 void *lastdata;
mbed_official 0:51ac1d130fd4 283 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 284
mbed_official 0:51ac1d130fd4 285 lastdata = sock->lastdata;
mbed_official 0:51ac1d130fd4 286 sock->lastdata = NULL;
mbed_official 0:51ac1d130fd4 287 sock->lastoffset = 0;
mbed_official 0:51ac1d130fd4 288 sock->err = 0;
mbed_official 0:51ac1d130fd4 289
mbed_official 0:51ac1d130fd4 290 /* Protect socket array */
mbed_official 0:51ac1d130fd4 291 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 292 sock->conn = NULL;
mbed_official 0:51ac1d130fd4 293 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 294 /* don't use 'sock' after this line, as another task might have allocated it */
mbed_official 0:51ac1d130fd4 295
mbed_official 0:51ac1d130fd4 296 if (lastdata != NULL) {
mbed_official 0:51ac1d130fd4 297 if (is_tcp) {
mbed_official 0:51ac1d130fd4 298 pbuf_free((struct pbuf *)lastdata);
mbed_official 0:51ac1d130fd4 299 } else {
mbed_official 0:51ac1d130fd4 300 netbuf_delete((struct netbuf *)lastdata);
mbed_official 0:51ac1d130fd4 301 }
mbed_official 0:51ac1d130fd4 302 }
mbed_official 0:51ac1d130fd4 303 }
mbed_official 0:51ac1d130fd4 304
mbed_official 0:51ac1d130fd4 305 /* Below this, the well-known socket functions are implemented.
mbed_official 0:51ac1d130fd4 306 * Use google.com or opengroup.org to get a good description :-)
mbed_official 0:51ac1d130fd4 307 *
mbed_official 0:51ac1d130fd4 308 * Exceptions are documented!
mbed_official 0:51ac1d130fd4 309 */
mbed_official 0:51ac1d130fd4 310
mbed_official 0:51ac1d130fd4 311 int
mbed_official 0:51ac1d130fd4 312 lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
mbed_official 0:51ac1d130fd4 313 {
mbed_official 0:51ac1d130fd4 314 struct lwip_sock *sock, *nsock;
mbed_official 0:51ac1d130fd4 315 struct netconn *newconn;
mbed_official 0:51ac1d130fd4 316 ip_addr_t naddr;
mbed_official 0:51ac1d130fd4 317 u16_t port;
mbed_official 0:51ac1d130fd4 318 int newsock;
mbed_official 0:51ac1d130fd4 319 struct sockaddr_in sin;
mbed_official 0:51ac1d130fd4 320 err_t err;
mbed_official 0:51ac1d130fd4 321 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 322
mbed_official 0:51ac1d130fd4 323 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
mbed_official 0:51ac1d130fd4 324 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 325 if (!sock) {
mbed_official 0:51ac1d130fd4 326 return -1;
mbed_official 0:51ac1d130fd4 327 }
mbed_official 0:51ac1d130fd4 328
mbed_official 0:51ac1d130fd4 329 if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
mbed_official 0:51ac1d130fd4 330 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
mbed_official 0:51ac1d130fd4 331 sock_set_errno(sock, EWOULDBLOCK);
mbed_official 0:51ac1d130fd4 332 return -1;
mbed_official 0:51ac1d130fd4 333 }
mbed_official 0:51ac1d130fd4 334
mbed_official 0:51ac1d130fd4 335 /* wait for a new connection */
mbed_official 0:51ac1d130fd4 336 err = netconn_accept(sock->conn, &newconn);
mbed_official 0:51ac1d130fd4 337 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 338 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
mbed_official 0:51ac1d130fd4 339 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 340 return -1;
mbed_official 0:51ac1d130fd4 341 }
mbed_official 0:51ac1d130fd4 342 LWIP_ASSERT("newconn != NULL", newconn != NULL);
mbed_official 0:51ac1d130fd4 343 /* Prevent automatic window updates, we do this on our own! */
mbed_official 0:51ac1d130fd4 344 netconn_set_noautorecved(newconn, 1);
mbed_official 0:51ac1d130fd4 345
mbed_official 0:51ac1d130fd4 346 /* get the IP address and port of the remote host */
mbed_official 0:51ac1d130fd4 347 err = netconn_peer(newconn, &naddr, &port);
mbed_official 0:51ac1d130fd4 348 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 349 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
mbed_official 0:51ac1d130fd4 350 netconn_delete(newconn);
mbed_official 0:51ac1d130fd4 351 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 352 return -1;
mbed_official 0:51ac1d130fd4 353 }
mbed_official 0:51ac1d130fd4 354
mbed_official 0:51ac1d130fd4 355 /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
mbed_official 0:51ac1d130fd4 356 * not be NULL if addr is valid.
mbed_official 0:51ac1d130fd4 357 */
mbed_official 0:51ac1d130fd4 358 if (NULL != addr) {
mbed_official 0:51ac1d130fd4 359 LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
mbed_official 0:51ac1d130fd4 360 memset(&sin, 0, sizeof(sin));
mbed_official 0:51ac1d130fd4 361 sin.sin_len = sizeof(sin);
mbed_official 0:51ac1d130fd4 362 sin.sin_family = AF_INET;
mbed_official 0:51ac1d130fd4 363 sin.sin_port = htons(port);
mbed_official 0:51ac1d130fd4 364 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
mbed_official 0:51ac1d130fd4 365
mbed_official 0:51ac1d130fd4 366 if (*addrlen > sizeof(sin))
mbed_official 0:51ac1d130fd4 367 *addrlen = sizeof(sin);
mbed_official 0:51ac1d130fd4 368
mbed_official 0:51ac1d130fd4 369 MEMCPY(addr, &sin, *addrlen);
mbed_official 0:51ac1d130fd4 370 }
mbed_official 0:51ac1d130fd4 371
mbed_official 0:51ac1d130fd4 372 newsock = alloc_socket(newconn, 1);
mbed_official 0:51ac1d130fd4 373 if (newsock == -1) {
mbed_official 0:51ac1d130fd4 374 netconn_delete(newconn);
mbed_official 0:51ac1d130fd4 375 sock_set_errno(sock, ENFILE);
mbed_official 0:51ac1d130fd4 376 return -1;
mbed_official 0:51ac1d130fd4 377 }
mbed_official 0:51ac1d130fd4 378 LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
mbed_official 0:51ac1d130fd4 379 LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
mbed_official 0:51ac1d130fd4 380 nsock = &sockets[newsock];
mbed_official 0:51ac1d130fd4 381
mbed_official 0:51ac1d130fd4 382 /* See event_callback: If data comes in right away after an accept, even
mbed_official 0:51ac1d130fd4 383 * though the server task might not have created a new socket yet.
mbed_official 0:51ac1d130fd4 384 * In that case, newconn->socket is counted down (newconn->socket--),
mbed_official 0:51ac1d130fd4 385 * so nsock->rcvevent is >= 1 here!
mbed_official 0:51ac1d130fd4 386 */
mbed_official 0:51ac1d130fd4 387 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 388 nsock->rcvevent += (s16_t)(-1 - newconn->socket);
mbed_official 0:51ac1d130fd4 389 newconn->socket = newsock;
mbed_official 0:51ac1d130fd4 390 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 391
mbed_official 0:51ac1d130fd4 392 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
mbed_official 0:51ac1d130fd4 393 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
mbed_official 0:51ac1d130fd4 394 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
mbed_official 0:51ac1d130fd4 395
mbed_official 0:51ac1d130fd4 396 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 397 return newsock;
mbed_official 0:51ac1d130fd4 398 }
mbed_official 0:51ac1d130fd4 399
mbed_official 0:51ac1d130fd4 400 int
mbed_official 0:51ac1d130fd4 401 lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
mbed_official 0:51ac1d130fd4 402 {
mbed_official 0:51ac1d130fd4 403 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 404 ip_addr_t local_addr;
mbed_official 0:51ac1d130fd4 405 u16_t local_port;
mbed_official 0:51ac1d130fd4 406 err_t err;
mbed_official 0:51ac1d130fd4 407 const struct sockaddr_in *name_in;
mbed_official 0:51ac1d130fd4 408
mbed_official 0:51ac1d130fd4 409 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 410 if (!sock) {
mbed_official 0:51ac1d130fd4 411 return -1;
mbed_official 0:51ac1d130fd4 412 }
mbed_official 0:51ac1d130fd4 413
mbed_official 0:51ac1d130fd4 414 /* check size, familiy and alignment of 'name' */
mbed_official 0:51ac1d130fd4 415 LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
mbed_official 0:51ac1d130fd4 416 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
mbed_official 0:51ac1d130fd4 417 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
mbed_official 0:51ac1d130fd4 418 name_in = (const struct sockaddr_in *)(void*)name;
mbed_official 0:51ac1d130fd4 419
mbed_official 0:51ac1d130fd4 420 inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
mbed_official 0:51ac1d130fd4 421 local_port = name_in->sin_port;
mbed_official 0:51ac1d130fd4 422
mbed_official 0:51ac1d130fd4 423 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
mbed_official 0:51ac1d130fd4 424 ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
mbed_official 0:51ac1d130fd4 425 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
mbed_official 0:51ac1d130fd4 426
mbed_official 0:51ac1d130fd4 427 err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
mbed_official 0:51ac1d130fd4 428
mbed_official 0:51ac1d130fd4 429 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 430 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
mbed_official 0:51ac1d130fd4 431 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 432 return -1;
mbed_official 0:51ac1d130fd4 433 }
mbed_official 0:51ac1d130fd4 434
mbed_official 0:51ac1d130fd4 435 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
mbed_official 0:51ac1d130fd4 436 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 437 return 0;
mbed_official 0:51ac1d130fd4 438 }
mbed_official 0:51ac1d130fd4 439
mbed_official 0:51ac1d130fd4 440 int
mbed_official 0:51ac1d130fd4 441 lwip_close(int s)
mbed_official 0:51ac1d130fd4 442 {
mbed_official 0:51ac1d130fd4 443 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 444 int is_tcp = 0;
mbed_official 0:51ac1d130fd4 445
mbed_official 0:51ac1d130fd4 446 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
mbed_official 0:51ac1d130fd4 447
mbed_official 0:51ac1d130fd4 448 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 449 if (!sock) {
mbed_official 0:51ac1d130fd4 450 return -1;
mbed_official 0:51ac1d130fd4 451 }
mbed_official 0:51ac1d130fd4 452
mbed_official 0:51ac1d130fd4 453 if(sock->conn != NULL) {
mbed_official 0:51ac1d130fd4 454 is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
mbed_official 0:51ac1d130fd4 455 } else {
mbed_official 0:51ac1d130fd4 456 LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
mbed_official 0:51ac1d130fd4 457 }
mbed_official 0:51ac1d130fd4 458
mbed_official 0:51ac1d130fd4 459 netconn_delete(sock->conn);
mbed_official 0:51ac1d130fd4 460
mbed_official 0:51ac1d130fd4 461 free_socket(sock, is_tcp);
mbed_official 0:51ac1d130fd4 462 set_errno(0);
mbed_official 0:51ac1d130fd4 463 return 0;
mbed_official 0:51ac1d130fd4 464 }
mbed_official 0:51ac1d130fd4 465
mbed_official 0:51ac1d130fd4 466 int
mbed_official 0:51ac1d130fd4 467 lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
mbed_official 0:51ac1d130fd4 468 {
mbed_official 0:51ac1d130fd4 469 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 470 err_t err;
mbed_official 0:51ac1d130fd4 471 const struct sockaddr_in *name_in;
mbed_official 0:51ac1d130fd4 472
mbed_official 0:51ac1d130fd4 473 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 474 if (!sock) {
mbed_official 0:51ac1d130fd4 475 return -1;
mbed_official 0:51ac1d130fd4 476 }
mbed_official 0:51ac1d130fd4 477
mbed_official 0:51ac1d130fd4 478 /* check size, familiy and alignment of 'name' */
mbed_official 0:51ac1d130fd4 479 LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
mbed_official 0:51ac1d130fd4 480 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
mbed_official 0:51ac1d130fd4 481 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
mbed_official 0:51ac1d130fd4 482 name_in = (const struct sockaddr_in *)(void*)name;
mbed_official 0:51ac1d130fd4 483
mbed_official 0:51ac1d130fd4 484 if (name_in->sin_family == AF_UNSPEC) {
mbed_official 0:51ac1d130fd4 485 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
mbed_official 0:51ac1d130fd4 486 err = netconn_disconnect(sock->conn);
mbed_official 0:51ac1d130fd4 487 } else {
mbed_official 0:51ac1d130fd4 488 ip_addr_t remote_addr;
mbed_official 0:51ac1d130fd4 489 u16_t remote_port;
mbed_official 0:51ac1d130fd4 490
mbed_official 0:51ac1d130fd4 491 inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
mbed_official 0:51ac1d130fd4 492 remote_port = name_in->sin_port;
mbed_official 0:51ac1d130fd4 493
mbed_official 0:51ac1d130fd4 494 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
mbed_official 0:51ac1d130fd4 495 ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
mbed_official 0:51ac1d130fd4 496 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
mbed_official 0:51ac1d130fd4 497
mbed_official 0:51ac1d130fd4 498 err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
mbed_official 0:51ac1d130fd4 499 }
mbed_official 0:51ac1d130fd4 500
mbed_official 0:51ac1d130fd4 501 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 502 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
mbed_official 0:51ac1d130fd4 503 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 504 return -1;
mbed_official 0:51ac1d130fd4 505 }
mbed_official 0:51ac1d130fd4 506
mbed_official 0:51ac1d130fd4 507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
mbed_official 0:51ac1d130fd4 508 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 509 return 0;
mbed_official 0:51ac1d130fd4 510 }
mbed_official 0:51ac1d130fd4 511
mbed_official 0:51ac1d130fd4 512 /**
mbed_official 0:51ac1d130fd4 513 * Set a socket into listen mode.
mbed_official 0:51ac1d130fd4 514 * The socket may not have been used for another connection previously.
mbed_official 0:51ac1d130fd4 515 *
mbed_official 0:51ac1d130fd4 516 * @param s the socket to set to listening mode
mbed_official 0:51ac1d130fd4 517 * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
mbed_official 0:51ac1d130fd4 518 * @return 0 on success, non-zero on failure
mbed_official 0:51ac1d130fd4 519 */
mbed_official 0:51ac1d130fd4 520 int
mbed_official 0:51ac1d130fd4 521 lwip_listen(int s, int backlog)
mbed_official 0:51ac1d130fd4 522 {
mbed_official 0:51ac1d130fd4 523 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 524 err_t err;
mbed_official 0:51ac1d130fd4 525
mbed_official 0:51ac1d130fd4 526 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
mbed_official 0:51ac1d130fd4 527
mbed_official 0:51ac1d130fd4 528 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 529 if (!sock) {
mbed_official 0:51ac1d130fd4 530 return -1;
mbed_official 0:51ac1d130fd4 531 }
mbed_official 0:51ac1d130fd4 532
mbed_official 0:51ac1d130fd4 533 /* limit the "backlog" parameter to fit in an u8_t */
mbed_official 0:51ac1d130fd4 534 backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
mbed_official 0:51ac1d130fd4 535
mbed_official 0:51ac1d130fd4 536 err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
mbed_official 0:51ac1d130fd4 537
mbed_official 0:51ac1d130fd4 538 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 539 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
mbed_official 0:51ac1d130fd4 540 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 541 return -1;
mbed_official 0:51ac1d130fd4 542 }
mbed_official 0:51ac1d130fd4 543
mbed_official 0:51ac1d130fd4 544 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 545 return 0;
mbed_official 0:51ac1d130fd4 546 }
mbed_official 0:51ac1d130fd4 547
mbed_official 0:51ac1d130fd4 548 int
mbed_official 0:51ac1d130fd4 549 lwip_recvfrom(int s, void *mem, size_t len, int flags,
mbed_official 0:51ac1d130fd4 550 struct sockaddr *from, socklen_t *fromlen)
mbed_official 0:51ac1d130fd4 551 {
mbed_official 0:51ac1d130fd4 552 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 553 void *buf = NULL;
mbed_official 0:51ac1d130fd4 554 struct pbuf *p;
mbed_official 0:51ac1d130fd4 555 u16_t buflen, copylen;
mbed_official 0:51ac1d130fd4 556 int off = 0;
mbed_official 0:51ac1d130fd4 557 ip_addr_t *addr;
mbed_official 0:51ac1d130fd4 558 u16_t port;
mbed_official 0:51ac1d130fd4 559 u8_t done = 0;
mbed_official 0:51ac1d130fd4 560 err_t err;
mbed_official 0:51ac1d130fd4 561
mbed_official 0:51ac1d130fd4 562 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
mbed_official 0:51ac1d130fd4 563 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 564 if (!sock) {
mbed_official 0:51ac1d130fd4 565 return -1;
mbed_official 0:51ac1d130fd4 566 }
mbed_official 0:51ac1d130fd4 567
mbed_official 0:51ac1d130fd4 568 do {
mbed_official 0:51ac1d130fd4 569 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
mbed_official 0:51ac1d130fd4 570 /* Check if there is data left from the last recv operation. */
mbed_official 0:51ac1d130fd4 571 if (sock->lastdata) {
mbed_official 0:51ac1d130fd4 572 buf = sock->lastdata;
mbed_official 0:51ac1d130fd4 573 } else {
mbed_official 0:51ac1d130fd4 574 /* If this is non-blocking call, then check first */
mbed_official 0:51ac1d130fd4 575 if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
mbed_official 0:51ac1d130fd4 576 (sock->rcvevent <= 0)) {
mbed_official 0:51ac1d130fd4 577 if (off > 0) {
mbed_official 0:51ac1d130fd4 578 /* update receive window */
mbed_official 0:51ac1d130fd4 579 netconn_recved(sock->conn, (u32_t)off);
mbed_official 0:51ac1d130fd4 580 /* already received data, return that */
mbed_official 0:51ac1d130fd4 581 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 582 return off;
mbed_official 0:51ac1d130fd4 583 }
mbed_official 0:51ac1d130fd4 584 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
mbed_official 0:51ac1d130fd4 585 sock_set_errno(sock, EWOULDBLOCK);
mbed_official 0:51ac1d130fd4 586 return -1;
mbed_official 0:51ac1d130fd4 587 }
mbed_official 0:51ac1d130fd4 588
mbed_official 0:51ac1d130fd4 589 /* No data was left from the previous operation, so we try to get
mbed_official 0:51ac1d130fd4 590 some from the network. */
mbed_official 0:51ac1d130fd4 591 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 592 err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
mbed_official 0:51ac1d130fd4 593 } else {
mbed_official 0:51ac1d130fd4 594 err = netconn_recv(sock->conn, (struct netbuf **)&buf);
mbed_official 0:51ac1d130fd4 595 }
mbed_official 0:51ac1d130fd4 596 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
mbed_official 0:51ac1d130fd4 597 err, buf));
mbed_official 0:51ac1d130fd4 598
mbed_official 0:51ac1d130fd4 599 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 600 if (off > 0) {
mbed_official 0:51ac1d130fd4 601 /* update receive window */
mbed_official 0:51ac1d130fd4 602 netconn_recved(sock->conn, (u32_t)off);
mbed_official 0:51ac1d130fd4 603 /* already received data, return that */
mbed_official 0:51ac1d130fd4 604 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 605 return off;
mbed_official 0:51ac1d130fd4 606 }
mbed_official 0:51ac1d130fd4 607 /* We should really do some error checking here. */
mbed_official 0:51ac1d130fd4 608 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
mbed_official 0:51ac1d130fd4 609 s, lwip_strerr(err)));
mbed_official 0:51ac1d130fd4 610 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 611 if (err == ERR_CLSD) {
mbed_official 0:51ac1d130fd4 612 return 0;
mbed_official 0:51ac1d130fd4 613 } else {
mbed_official 0:51ac1d130fd4 614 return -1;
mbed_official 0:51ac1d130fd4 615 }
mbed_official 0:51ac1d130fd4 616 }
mbed_official 0:51ac1d130fd4 617 LWIP_ASSERT("buf != NULL", buf != NULL);
mbed_official 0:51ac1d130fd4 618 sock->lastdata = buf;
mbed_official 0:51ac1d130fd4 619 }
mbed_official 0:51ac1d130fd4 620
mbed_official 0:51ac1d130fd4 621 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 622 p = (struct pbuf *)buf;
mbed_official 0:51ac1d130fd4 623 } else {
mbed_official 0:51ac1d130fd4 624 p = ((struct netbuf *)buf)->p;
mbed_official 0:51ac1d130fd4 625 }
mbed_official 0:51ac1d130fd4 626 buflen = p->tot_len;
mbed_official 0:51ac1d130fd4 627 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
mbed_official 0:51ac1d130fd4 628 buflen, len, off, sock->lastoffset));
mbed_official 0:51ac1d130fd4 629
mbed_official 0:51ac1d130fd4 630 buflen -= sock->lastoffset;
mbed_official 0:51ac1d130fd4 631
mbed_official 0:51ac1d130fd4 632 if (len > buflen) {
mbed_official 0:51ac1d130fd4 633 copylen = buflen;
mbed_official 0:51ac1d130fd4 634 } else {
mbed_official 0:51ac1d130fd4 635 copylen = (u16_t)len;
mbed_official 0:51ac1d130fd4 636 }
mbed_official 0:51ac1d130fd4 637
mbed_official 0:51ac1d130fd4 638 /* copy the contents of the received buffer into
mbed_official 0:51ac1d130fd4 639 the supplied memory pointer mem */
mbed_official 0:51ac1d130fd4 640 pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
mbed_official 0:51ac1d130fd4 641
mbed_official 0:51ac1d130fd4 642 off += copylen;
mbed_official 0:51ac1d130fd4 643
mbed_official 0:51ac1d130fd4 644 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 645 LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
mbed_official 0:51ac1d130fd4 646 len -= copylen;
mbed_official 0:51ac1d130fd4 647 if ( (len <= 0) ||
mbed_official 0:51ac1d130fd4 648 (p->flags & PBUF_FLAG_PUSH) ||
mbed_official 0:51ac1d130fd4 649 (sock->rcvevent <= 0) ||
mbed_official 0:51ac1d130fd4 650 ((flags & MSG_PEEK)!=0)) {
mbed_official 0:51ac1d130fd4 651 done = 1;
mbed_official 0:51ac1d130fd4 652 }
mbed_official 0:51ac1d130fd4 653 } else {
mbed_official 0:51ac1d130fd4 654 done = 1;
mbed_official 0:51ac1d130fd4 655 }
mbed_official 0:51ac1d130fd4 656
mbed_official 0:51ac1d130fd4 657 /* Check to see from where the data was.*/
mbed_official 0:51ac1d130fd4 658 if (done) {
mbed_official 0:51ac1d130fd4 659 ip_addr_t fromaddr;
mbed_official 0:51ac1d130fd4 660 if (from && fromlen) {
mbed_official 0:51ac1d130fd4 661 struct sockaddr_in sin;
mbed_official 0:51ac1d130fd4 662
mbed_official 0:51ac1d130fd4 663 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 664 addr = &fromaddr;
mbed_official 0:51ac1d130fd4 665 netconn_getaddr(sock->conn, addr, &port, 0);
mbed_official 0:51ac1d130fd4 666 } else {
mbed_official 0:51ac1d130fd4 667 addr = netbuf_fromaddr((struct netbuf *)buf);
mbed_official 0:51ac1d130fd4 668 port = netbuf_fromport((struct netbuf *)buf);
mbed_official 0:51ac1d130fd4 669 }
mbed_official 0:51ac1d130fd4 670
mbed_official 0:51ac1d130fd4 671 memset(&sin, 0, sizeof(sin));
mbed_official 0:51ac1d130fd4 672 sin.sin_len = sizeof(sin);
mbed_official 0:51ac1d130fd4 673 sin.sin_family = AF_INET;
mbed_official 0:51ac1d130fd4 674 sin.sin_port = htons(port);
mbed_official 0:51ac1d130fd4 675 inet_addr_from_ipaddr(&sin.sin_addr, addr);
mbed_official 0:51ac1d130fd4 676
mbed_official 0:51ac1d130fd4 677 if (*fromlen > sizeof(sin)) {
mbed_official 0:51ac1d130fd4 678 *fromlen = sizeof(sin);
mbed_official 0:51ac1d130fd4 679 }
mbed_official 0:51ac1d130fd4 680
mbed_official 0:51ac1d130fd4 681 MEMCPY(from, &sin, *fromlen);
mbed_official 0:51ac1d130fd4 682
mbed_official 0:51ac1d130fd4 683 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
mbed_official 0:51ac1d130fd4 684 ip_addr_debug_print(SOCKETS_DEBUG, addr);
mbed_official 0:51ac1d130fd4 685 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
mbed_official 0:51ac1d130fd4 686 } else {
mbed_official 0:51ac1d130fd4 687 #if SOCKETS_DEBUG
mbed_official 0:51ac1d130fd4 688 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 689 addr = &fromaddr;
mbed_official 0:51ac1d130fd4 690 netconn_getaddr(sock->conn, addr, &port, 0);
mbed_official 0:51ac1d130fd4 691 } else {
mbed_official 0:51ac1d130fd4 692 addr = netbuf_fromaddr((struct netbuf *)buf);
mbed_official 0:51ac1d130fd4 693 port = netbuf_fromport((struct netbuf *)buf);
mbed_official 0:51ac1d130fd4 694 }
mbed_official 0:51ac1d130fd4 695
mbed_official 0:51ac1d130fd4 696 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
mbed_official 0:51ac1d130fd4 697 ip_addr_debug_print(SOCKETS_DEBUG, addr);
mbed_official 0:51ac1d130fd4 698 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
mbed_official 0:51ac1d130fd4 699 #endif /* SOCKETS_DEBUG */
mbed_official 0:51ac1d130fd4 700 }
mbed_official 0:51ac1d130fd4 701 }
mbed_official 0:51ac1d130fd4 702
mbed_official 0:51ac1d130fd4 703 /* If we don't peek the incoming message... */
mbed_official 0:51ac1d130fd4 704 if ((flags & MSG_PEEK) == 0) {
mbed_official 0:51ac1d130fd4 705 /* If this is a TCP socket, check if there is data left in the
mbed_official 0:51ac1d130fd4 706 buffer. If so, it should be saved in the sock structure for next
mbed_official 0:51ac1d130fd4 707 time around. */
mbed_official 0:51ac1d130fd4 708 if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
mbed_official 0:51ac1d130fd4 709 sock->lastdata = buf;
mbed_official 0:51ac1d130fd4 710 sock->lastoffset += copylen;
mbed_official 0:51ac1d130fd4 711 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
mbed_official 0:51ac1d130fd4 712 } else {
mbed_official 0:51ac1d130fd4 713 sock->lastdata = NULL;
mbed_official 0:51ac1d130fd4 714 sock->lastoffset = 0;
mbed_official 0:51ac1d130fd4 715 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
mbed_official 0:51ac1d130fd4 716 if (netconn_type(sock->conn) == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 717 pbuf_free((struct pbuf *)buf);
mbed_official 0:51ac1d130fd4 718 } else {
mbed_official 0:51ac1d130fd4 719 netbuf_delete((struct netbuf *)buf);
mbed_official 0:51ac1d130fd4 720 }
mbed_official 0:51ac1d130fd4 721 }
mbed_official 0:51ac1d130fd4 722 }
mbed_official 0:51ac1d130fd4 723 } while (!done);
mbed_official 0:51ac1d130fd4 724
mbed_official 0:51ac1d130fd4 725 if (off > 0) {
mbed_official 0:51ac1d130fd4 726 /* update receive window */
mbed_official 0:51ac1d130fd4 727 netconn_recved(sock->conn, (u32_t)off);
mbed_official 0:51ac1d130fd4 728 }
mbed_official 0:51ac1d130fd4 729 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 730 return off;
mbed_official 0:51ac1d130fd4 731 }
mbed_official 0:51ac1d130fd4 732
mbed_official 0:51ac1d130fd4 733 int
mbed_official 0:51ac1d130fd4 734 lwip_read(int s, void *mem, size_t len)
mbed_official 0:51ac1d130fd4 735 {
mbed_official 0:51ac1d130fd4 736 return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
mbed_official 0:51ac1d130fd4 737 }
mbed_official 0:51ac1d130fd4 738
mbed_official 0:51ac1d130fd4 739 int
mbed_official 0:51ac1d130fd4 740 lwip_recv(int s, void *mem, size_t len, int flags)
mbed_official 0:51ac1d130fd4 741 {
mbed_official 0:51ac1d130fd4 742 return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
mbed_official 0:51ac1d130fd4 743 }
mbed_official 0:51ac1d130fd4 744
mbed_official 0:51ac1d130fd4 745 int
mbed_official 0:51ac1d130fd4 746 lwip_send(int s, const void *data, size_t size, int flags)
mbed_official 0:51ac1d130fd4 747 {
mbed_official 0:51ac1d130fd4 748 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 749 err_t err;
mbed_official 0:51ac1d130fd4 750 u8_t write_flags;
mbed_official 0:51ac1d130fd4 751
mbed_official 0:51ac1d130fd4 752 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
mbed_official 0:51ac1d130fd4 753 s, data, size, flags));
mbed_official 0:51ac1d130fd4 754
mbed_official 0:51ac1d130fd4 755 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 756 if (!sock) {
mbed_official 0:51ac1d130fd4 757 return -1;
mbed_official 0:51ac1d130fd4 758 }
mbed_official 0:51ac1d130fd4 759
mbed_official 0:51ac1d130fd4 760 if (sock->conn->type != NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 761 #if (LWIP_UDP || LWIP_RAW)
mbed_official 0:51ac1d130fd4 762 return lwip_sendto(s, data, size, flags, NULL, 0);
mbed_official 0:51ac1d130fd4 763 #else /* (LWIP_UDP || LWIP_RAW) */
mbed_official 0:51ac1d130fd4 764 sock_set_errno(sock, err_to_errno(ERR_ARG));
mbed_official 0:51ac1d130fd4 765 return -1;
mbed_official 0:51ac1d130fd4 766 #endif /* (LWIP_UDP || LWIP_RAW) */
mbed_official 0:51ac1d130fd4 767 }
mbed_official 0:51ac1d130fd4 768
mbed_official 0:51ac1d130fd4 769 if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
mbed_official 0:51ac1d130fd4 770 if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
mbed_official 0:51ac1d130fd4 771 /* too much data to ever send nonblocking! */
mbed_official 0:51ac1d130fd4 772 sock_set_errno(sock, EMSGSIZE);
mbed_official 0:51ac1d130fd4 773 return -1;
mbed_official 0:51ac1d130fd4 774 }
mbed_official 0:51ac1d130fd4 775 }
mbed_official 0:51ac1d130fd4 776
mbed_official 0:51ac1d130fd4 777 write_flags = NETCONN_COPY |
mbed_official 0:51ac1d130fd4 778 ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
mbed_official 0:51ac1d130fd4 779 ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
mbed_official 0:51ac1d130fd4 780 err = netconn_write(sock->conn, data, size, write_flags);
mbed_official 0:51ac1d130fd4 781
mbed_official 0:51ac1d130fd4 782 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
mbed_official 0:51ac1d130fd4 783 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 784 return (err == ERR_OK ? (int)size : -1);
mbed_official 0:51ac1d130fd4 785 }
mbed_official 0:51ac1d130fd4 786
mbed_official 0:51ac1d130fd4 787 int
mbed_official 0:51ac1d130fd4 788 lwip_sendto(int s, const void *data, size_t size, int flags,
mbed_official 0:51ac1d130fd4 789 const struct sockaddr *to, socklen_t tolen)
mbed_official 0:51ac1d130fd4 790 {
mbed_official 0:51ac1d130fd4 791 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 792 err_t err;
mbed_official 0:51ac1d130fd4 793 u16_t short_size;
mbed_official 0:51ac1d130fd4 794 const struct sockaddr_in *to_in;
mbed_official 0:51ac1d130fd4 795 u16_t remote_port;
mbed_official 0:51ac1d130fd4 796 #if !LWIP_TCPIP_CORE_LOCKING
mbed_official 0:51ac1d130fd4 797 struct netbuf buf;
mbed_official 0:51ac1d130fd4 798 #endif
mbed_official 0:51ac1d130fd4 799
mbed_official 0:51ac1d130fd4 800 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 801 if (!sock) {
mbed_official 0:51ac1d130fd4 802 return -1;
mbed_official 0:51ac1d130fd4 803 }
mbed_official 0:51ac1d130fd4 804
mbed_official 0:51ac1d130fd4 805 if (sock->conn->type == NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 806 #if LWIP_TCP
mbed_official 0:51ac1d130fd4 807 return lwip_send(s, data, size, flags);
mbed_official 0:51ac1d130fd4 808 #else /* LWIP_TCP */
mbed_official 0:51ac1d130fd4 809 LWIP_UNUSED_ARG(flags);
mbed_official 0:51ac1d130fd4 810 sock_set_errno(sock, err_to_errno(ERR_ARG));
mbed_official 0:51ac1d130fd4 811 return -1;
mbed_official 0:51ac1d130fd4 812 #endif /* LWIP_TCP */
mbed_official 0:51ac1d130fd4 813 }
mbed_official 0:51ac1d130fd4 814
mbed_official 0:51ac1d130fd4 815 /* @todo: split into multiple sendto's? */
mbed_official 0:51ac1d130fd4 816 LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
mbed_official 0:51ac1d130fd4 817 short_size = (u16_t)size;
mbed_official 0:51ac1d130fd4 818 LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
mbed_official 0:51ac1d130fd4 819 ((tolen == sizeof(struct sockaddr_in)) &&
mbed_official 0:51ac1d130fd4 820 ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
mbed_official 0:51ac1d130fd4 821 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
mbed_official 0:51ac1d130fd4 822 to_in = (const struct sockaddr_in *)(void*)to;
mbed_official 0:51ac1d130fd4 823
mbed_official 0:51ac1d130fd4 824 #if LWIP_TCPIP_CORE_LOCKING
mbed_official 0:51ac1d130fd4 825 /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
mbed_official 0:51ac1d130fd4 826 {
mbed_official 0:51ac1d130fd4 827 struct pbuf* p;
mbed_official 0:51ac1d130fd4 828 ip_addr_t *remote_addr;
mbed_official 0:51ac1d130fd4 829
mbed_official 0:51ac1d130fd4 830 #if LWIP_NETIF_TX_SINGLE_PBUF
mbed_official 0:51ac1d130fd4 831 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
mbed_official 0:51ac1d130fd4 832 if (p != NULL) {
mbed_official 0:51ac1d130fd4 833 #if LWIP_CHECKSUM_ON_COPY
mbed_official 0:51ac1d130fd4 834 u16_t chksum = 0;
mbed_official 0:51ac1d130fd4 835 if (sock->conn->type != NETCONN_RAW) {
mbed_official 0:51ac1d130fd4 836 chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
mbed_official 0:51ac1d130fd4 837 } else
mbed_official 0:51ac1d130fd4 838 #endif /* LWIP_CHECKSUM_ON_COPY */
mbed_official 0:51ac1d130fd4 839 MEMCPY(p->payload, data, size);
mbed_official 0:51ac1d130fd4 840 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 841 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
mbed_official 0:51ac1d130fd4 842 if (p != NULL) {
mbed_official 0:51ac1d130fd4 843 p->payload = (void*)data;
mbed_official 0:51ac1d130fd4 844 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 845
mbed_official 0:51ac1d130fd4 846 if (to_in != NULL) {
mbed_official 0:51ac1d130fd4 847 inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
mbed_official 0:51ac1d130fd4 848 remote_port = ntohs(to_in->sin_port);
mbed_official 0:51ac1d130fd4 849 } else {
mbed_official 0:51ac1d130fd4 850 remote_addr = &sock->conn->pcb.raw->remote_ip;
mbed_official 0:51ac1d130fd4 851 if (sock->conn->type == NETCONN_RAW) {
mbed_official 0:51ac1d130fd4 852 remote_port = 0;
mbed_official 0:51ac1d130fd4 853 } else {
mbed_official 0:51ac1d130fd4 854 remote_port = sock->conn->pcb.udp->remote_port;
mbed_official 0:51ac1d130fd4 855 }
mbed_official 0:51ac1d130fd4 856 }
mbed_official 0:51ac1d130fd4 857
mbed_official 0:51ac1d130fd4 858 LOCK_TCPIP_CORE();
mbed_official 0:51ac1d130fd4 859 if (sock->conn->type == NETCONN_RAW) {
mbed_official 0:51ac1d130fd4 860 err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
mbed_official 0:51ac1d130fd4 861 } else {
mbed_official 0:51ac1d130fd4 862 #if LWIP_UDP
mbed_official 0:51ac1d130fd4 863 #if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
mbed_official 0:51ac1d130fd4 864 err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
mbed_official 0:51ac1d130fd4 865 remote_addr, remote_port, 1, chksum);
mbed_official 0:51ac1d130fd4 866 #else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 867 err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
mbed_official 0:51ac1d130fd4 868 remote_addr, remote_port);
mbed_official 0:51ac1d130fd4 869 #endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 870 #else /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 871 err = ERR_ARG;
mbed_official 0:51ac1d130fd4 872 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 873 }
mbed_official 0:51ac1d130fd4 874 UNLOCK_TCPIP_CORE();
mbed_official 0:51ac1d130fd4 875
mbed_official 0:51ac1d130fd4 876 pbuf_free(p);
mbed_official 0:51ac1d130fd4 877 } else {
mbed_official 0:51ac1d130fd4 878 err = ERR_MEM;
mbed_official 0:51ac1d130fd4 879 }
mbed_official 0:51ac1d130fd4 880 }
mbed_official 0:51ac1d130fd4 881 #else /* LWIP_TCPIP_CORE_LOCKING */
mbed_official 0:51ac1d130fd4 882 /* initialize a buffer */
mbed_official 0:51ac1d130fd4 883 buf.p = buf.ptr = NULL;
mbed_official 0:51ac1d130fd4 884 #if LWIP_CHECKSUM_ON_COPY
mbed_official 0:51ac1d130fd4 885 buf.flags = 0;
mbed_official 0:51ac1d130fd4 886 #endif /* LWIP_CHECKSUM_ON_COPY */
mbed_official 0:51ac1d130fd4 887 if (to) {
mbed_official 0:51ac1d130fd4 888 inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
mbed_official 0:51ac1d130fd4 889 remote_port = ntohs(to_in->sin_port);
mbed_official 0:51ac1d130fd4 890 netbuf_fromport(&buf) = remote_port;
mbed_official 0:51ac1d130fd4 891 } else {
mbed_official 0:51ac1d130fd4 892 remote_port = 0;
mbed_official 0:51ac1d130fd4 893 ip_addr_set_any(&buf.addr);
mbed_official 0:51ac1d130fd4 894 netbuf_fromport(&buf) = 0;
mbed_official 0:51ac1d130fd4 895 }
mbed_official 0:51ac1d130fd4 896
mbed_official 0:51ac1d130fd4 897 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
mbed_official 0:51ac1d130fd4 898 s, data, short_size, flags));
mbed_official 0:51ac1d130fd4 899 ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
mbed_official 0:51ac1d130fd4 900 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
mbed_official 0:51ac1d130fd4 901
mbed_official 0:51ac1d130fd4 902 /* make the buffer point to the data that should be sent */
mbed_official 0:51ac1d130fd4 903 #if LWIP_NETIF_TX_SINGLE_PBUF
mbed_official 0:51ac1d130fd4 904 /* Allocate a new netbuf and copy the data into it. */
mbed_official 0:51ac1d130fd4 905 if (netbuf_alloc(&buf, short_size) == NULL) {
mbed_official 0:51ac1d130fd4 906 err = ERR_MEM;
mbed_official 0:51ac1d130fd4 907 } else {
mbed_official 0:51ac1d130fd4 908 #if LWIP_CHECKSUM_ON_COPY
mbed_official 0:51ac1d130fd4 909 if (sock->conn->type != NETCONN_RAW) {
mbed_official 0:51ac1d130fd4 910 u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
mbed_official 0:51ac1d130fd4 911 netbuf_set_chksum(&buf, chksum);
mbed_official 0:51ac1d130fd4 912 err = ERR_OK;
mbed_official 0:51ac1d130fd4 913 } else
mbed_official 0:51ac1d130fd4 914 #endif /* LWIP_CHECKSUM_ON_COPY */
mbed_official 0:51ac1d130fd4 915 {
mbed_official 0:51ac1d130fd4 916 err = netbuf_take(&buf, data, short_size);
mbed_official 0:51ac1d130fd4 917 }
mbed_official 0:51ac1d130fd4 918 }
mbed_official 0:51ac1d130fd4 919 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 920 err = netbuf_ref(&buf, data, short_size);
mbed_official 0:51ac1d130fd4 921 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
mbed_official 0:51ac1d130fd4 922 if (err == ERR_OK) {
mbed_official 0:51ac1d130fd4 923 /* send the data */
mbed_official 0:51ac1d130fd4 924 err = netconn_send(sock->conn, &buf);
mbed_official 0:51ac1d130fd4 925 }
mbed_official 0:51ac1d130fd4 926
mbed_official 0:51ac1d130fd4 927 /* deallocated the buffer */
mbed_official 0:51ac1d130fd4 928 netbuf_free(&buf);
mbed_official 0:51ac1d130fd4 929 #endif /* LWIP_TCPIP_CORE_LOCKING */
mbed_official 0:51ac1d130fd4 930 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 931 return (err == ERR_OK ? short_size : -1);
mbed_official 0:51ac1d130fd4 932 }
mbed_official 0:51ac1d130fd4 933
mbed_official 0:51ac1d130fd4 934 int
mbed_official 0:51ac1d130fd4 935 lwip_socket(int domain, int type, int protocol)
mbed_official 0:51ac1d130fd4 936 {
mbed_official 0:51ac1d130fd4 937 struct netconn *conn;
mbed_official 0:51ac1d130fd4 938 int i;
mbed_official 0:51ac1d130fd4 939
mbed_official 0:51ac1d130fd4 940 LWIP_UNUSED_ARG(domain);
mbed_official 0:51ac1d130fd4 941
mbed_official 0:51ac1d130fd4 942 /* create a netconn */
mbed_official 0:51ac1d130fd4 943 switch (type) {
mbed_official 0:51ac1d130fd4 944 case SOCK_RAW:
mbed_official 0:51ac1d130fd4 945 conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
mbed_official 0:51ac1d130fd4 946 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
mbed_official 0:51ac1d130fd4 947 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
mbed_official 0:51ac1d130fd4 948 break;
mbed_official 0:51ac1d130fd4 949 case SOCK_DGRAM:
mbed_official 0:51ac1d130fd4 950 conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
mbed_official 0:51ac1d130fd4 951 NETCONN_UDPLITE : NETCONN_UDP, event_callback);
mbed_official 0:51ac1d130fd4 952 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
mbed_official 0:51ac1d130fd4 953 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
mbed_official 0:51ac1d130fd4 954 break;
mbed_official 0:51ac1d130fd4 955 case SOCK_STREAM:
mbed_official 0:51ac1d130fd4 956 conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
mbed_official 0:51ac1d130fd4 957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
mbed_official 0:51ac1d130fd4 958 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
mbed_official 0:51ac1d130fd4 959 if (conn != NULL) {
mbed_official 0:51ac1d130fd4 960 /* Prevent automatic window updates, we do this on our own! */
mbed_official 0:51ac1d130fd4 961 netconn_set_noautorecved(conn, 1);
mbed_official 0:51ac1d130fd4 962 }
mbed_official 0:51ac1d130fd4 963 break;
mbed_official 0:51ac1d130fd4 964 default:
mbed_official 0:51ac1d130fd4 965 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
mbed_official 0:51ac1d130fd4 966 domain, type, protocol));
mbed_official 0:51ac1d130fd4 967 set_errno(EINVAL);
mbed_official 0:51ac1d130fd4 968 return -1;
mbed_official 0:51ac1d130fd4 969 }
mbed_official 0:51ac1d130fd4 970
mbed_official 0:51ac1d130fd4 971 if (!conn) {
mbed_official 0:51ac1d130fd4 972 LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
mbed_official 0:51ac1d130fd4 973 set_errno(ENOBUFS);
mbed_official 0:51ac1d130fd4 974 return -1;
mbed_official 0:51ac1d130fd4 975 }
mbed_official 0:51ac1d130fd4 976
mbed_official 0:51ac1d130fd4 977 i = alloc_socket(conn, 0);
mbed_official 0:51ac1d130fd4 978
mbed_official 0:51ac1d130fd4 979 if (i == -1) {
mbed_official 0:51ac1d130fd4 980 netconn_delete(conn);
mbed_official 0:51ac1d130fd4 981 set_errno(ENFILE);
mbed_official 0:51ac1d130fd4 982 return -1;
mbed_official 0:51ac1d130fd4 983 }
mbed_official 0:51ac1d130fd4 984 conn->socket = i;
mbed_official 0:51ac1d130fd4 985 LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
mbed_official 0:51ac1d130fd4 986 set_errno(0);
mbed_official 0:51ac1d130fd4 987 return i;
mbed_official 0:51ac1d130fd4 988 }
mbed_official 0:51ac1d130fd4 989
mbed_official 0:51ac1d130fd4 990 int
mbed_official 0:51ac1d130fd4 991 lwip_write(int s, const void *data, size_t size)
mbed_official 0:51ac1d130fd4 992 {
mbed_official 0:51ac1d130fd4 993 return lwip_send(s, data, size, 0);
mbed_official 0:51ac1d130fd4 994 }
mbed_official 0:51ac1d130fd4 995
mbed_official 0:51ac1d130fd4 996 /**
mbed_official 0:51ac1d130fd4 997 * Go through the readset and writeset lists and see which socket of the sockets
mbed_official 0:51ac1d130fd4 998 * set in the sets has events. On return, readset, writeset and exceptset have
mbed_official 0:51ac1d130fd4 999 * the sockets enabled that had events.
mbed_official 0:51ac1d130fd4 1000 *
mbed_official 0:51ac1d130fd4 1001 * exceptset is not used for now!!!
mbed_official 0:51ac1d130fd4 1002 *
mbed_official 0:51ac1d130fd4 1003 * @param maxfdp1 the highest socket index in the sets
mbed_official 0:51ac1d130fd4 1004 * @param readset_in: set of sockets to check for read events
mbed_official 0:51ac1d130fd4 1005 * @param writeset_in: set of sockets to check for write events
mbed_official 0:51ac1d130fd4 1006 * @param exceptset_in: set of sockets to check for error events
mbed_official 0:51ac1d130fd4 1007 * @param readset_out: set of sockets that had read events
mbed_official 0:51ac1d130fd4 1008 * @param writeset_out: set of sockets that had write events
mbed_official 0:51ac1d130fd4 1009 * @param exceptset_out: set os sockets that had error events
mbed_official 0:51ac1d130fd4 1010 * @return number of sockets that had events (read/write/exception) (>= 0)
mbed_official 0:51ac1d130fd4 1011 */
mbed_official 0:51ac1d130fd4 1012 static int
mbed_official 0:51ac1d130fd4 1013 lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
mbed_official 0:51ac1d130fd4 1014 fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
mbed_official 0:51ac1d130fd4 1015 {
mbed_official 0:51ac1d130fd4 1016 int i, nready = 0;
mbed_official 0:51ac1d130fd4 1017 fd_set lreadset, lwriteset, lexceptset;
mbed_official 0:51ac1d130fd4 1018 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 1019 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1020
mbed_official 0:51ac1d130fd4 1021 FD_ZERO(&lreadset);
mbed_official 0:51ac1d130fd4 1022 FD_ZERO(&lwriteset);
mbed_official 0:51ac1d130fd4 1023 FD_ZERO(&lexceptset);
mbed_official 0:51ac1d130fd4 1024
mbed_official 0:51ac1d130fd4 1025 /* Go through each socket in each list to count number of sockets which
mbed_official 0:51ac1d130fd4 1026 currently match */
mbed_official 0:51ac1d130fd4 1027 for(i = 0; i < maxfdp1; i++) {
mbed_official 0:51ac1d130fd4 1028 void* lastdata = NULL;
mbed_official 0:51ac1d130fd4 1029 s16_t rcvevent = 0;
mbed_official 0:51ac1d130fd4 1030 u16_t sendevent = 0;
mbed_official 0:51ac1d130fd4 1031 u16_t errevent = 0;
mbed_official 0:51ac1d130fd4 1032 /* First get the socket's status (protected)... */
mbed_official 0:51ac1d130fd4 1033 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1034 sock = tryget_socket(i);
mbed_official 0:51ac1d130fd4 1035 if (sock != NULL) {
mbed_official 0:51ac1d130fd4 1036 lastdata = sock->lastdata;
mbed_official 0:51ac1d130fd4 1037 rcvevent = sock->rcvevent;
mbed_official 0:51ac1d130fd4 1038 sendevent = sock->sendevent;
mbed_official 0:51ac1d130fd4 1039 errevent = sock->errevent;
mbed_official 0:51ac1d130fd4 1040 }
mbed_official 0:51ac1d130fd4 1041 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1042 /* ... then examine it: */
mbed_official 0:51ac1d130fd4 1043 /* See if netconn of this socket is ready for read */
mbed_official 0:51ac1d130fd4 1044 if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
mbed_official 0:51ac1d130fd4 1045 FD_SET(i, &lreadset);
mbed_official 0:51ac1d130fd4 1046 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
mbed_official 0:51ac1d130fd4 1047 nready++;
mbed_official 0:51ac1d130fd4 1048 }
mbed_official 0:51ac1d130fd4 1049 /* See if netconn of this socket is ready for write */
mbed_official 0:51ac1d130fd4 1050 if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
mbed_official 0:51ac1d130fd4 1051 FD_SET(i, &lwriteset);
mbed_official 0:51ac1d130fd4 1052 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
mbed_official 0:51ac1d130fd4 1053 nready++;
mbed_official 0:51ac1d130fd4 1054 }
mbed_official 0:51ac1d130fd4 1055 /* See if netconn of this socket had an error */
mbed_official 0:51ac1d130fd4 1056 if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
mbed_official 0:51ac1d130fd4 1057 FD_SET(i, &lexceptset);
mbed_official 0:51ac1d130fd4 1058 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
mbed_official 0:51ac1d130fd4 1059 nready++;
mbed_official 0:51ac1d130fd4 1060 }
mbed_official 0:51ac1d130fd4 1061 }
mbed_official 0:51ac1d130fd4 1062 /* copy local sets to the ones provided as arguments */
mbed_official 0:51ac1d130fd4 1063 *readset_out = lreadset;
mbed_official 0:51ac1d130fd4 1064 *writeset_out = lwriteset;
mbed_official 0:51ac1d130fd4 1065 *exceptset_out = lexceptset;
mbed_official 0:51ac1d130fd4 1066
mbed_official 0:51ac1d130fd4 1067 LWIP_ASSERT("nready >= 0", nready >= 0);
mbed_official 0:51ac1d130fd4 1068 return nready;
mbed_official 0:51ac1d130fd4 1069 }
mbed_official 0:51ac1d130fd4 1070
mbed_official 0:51ac1d130fd4 1071 /**
mbed_official 0:51ac1d130fd4 1072 * Processing exceptset is not yet implemented.
mbed_official 0:51ac1d130fd4 1073 */
mbed_official 0:51ac1d130fd4 1074 int
mbed_official 0:51ac1d130fd4 1075 lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
mbed_official 0:51ac1d130fd4 1076 struct timeval *timeout)
mbed_official 0:51ac1d130fd4 1077 {
mbed_official 0:51ac1d130fd4 1078 u32_t waitres = 0;
mbed_official 0:51ac1d130fd4 1079 int nready;
mbed_official 0:51ac1d130fd4 1080 fd_set lreadset, lwriteset, lexceptset;
mbed_official 0:51ac1d130fd4 1081 u32_t msectimeout;
mbed_official 0:51ac1d130fd4 1082 struct lwip_select_cb select_cb;
mbed_official 0:51ac1d130fd4 1083 err_t err;
mbed_official 0:51ac1d130fd4 1084 int i;
mbed_official 0:51ac1d130fd4 1085 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1086
mbed_official 0:51ac1d130fd4 1087 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
mbed_official 0:51ac1d130fd4 1088 maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
mbed_official 0:51ac1d130fd4 1089 timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
mbed_official 0:51ac1d130fd4 1090 timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
mbed_official 0:51ac1d130fd4 1091
mbed_official 0:51ac1d130fd4 1092 /* Go through each socket in each list to count number of sockets which
mbed_official 0:51ac1d130fd4 1093 currently match */
mbed_official 0:51ac1d130fd4 1094 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
mbed_official 0:51ac1d130fd4 1095
mbed_official 0:51ac1d130fd4 1096 /* If we don't have any current events, then suspend if we are supposed to */
mbed_official 0:51ac1d130fd4 1097 if (!nready) {
mbed_official 0:51ac1d130fd4 1098 if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
mbed_official 0:51ac1d130fd4 1099 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
mbed_official 0:51ac1d130fd4 1100 /* This is OK as the local fdsets are empty and nready is zero,
mbed_official 0:51ac1d130fd4 1101 or we would have returned earlier. */
mbed_official 0:51ac1d130fd4 1102 goto return_copy_fdsets;
mbed_official 0:51ac1d130fd4 1103 }
mbed_official 0:51ac1d130fd4 1104
mbed_official 0:51ac1d130fd4 1105 /* None ready: add our semaphore to list:
mbed_official 0:51ac1d130fd4 1106 We don't actually need any dynamic memory. Our entry on the
mbed_official 0:51ac1d130fd4 1107 list is only valid while we are in this function, so it's ok
mbed_official 0:51ac1d130fd4 1108 to use local variables. */
mbed_official 0:51ac1d130fd4 1109
mbed_official 0:51ac1d130fd4 1110 select_cb.next = NULL;
mbed_official 0:51ac1d130fd4 1111 select_cb.prev = NULL;
mbed_official 0:51ac1d130fd4 1112 select_cb.readset = readset;
mbed_official 0:51ac1d130fd4 1113 select_cb.writeset = writeset;
mbed_official 0:51ac1d130fd4 1114 select_cb.exceptset = exceptset;
mbed_official 0:51ac1d130fd4 1115 select_cb.sem_signalled = 0;
mbed_official 0:51ac1d130fd4 1116 err = sys_sem_new(&select_cb.sem, 0);
mbed_official 0:51ac1d130fd4 1117 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 1118 /* failed to create semaphore */
mbed_official 0:51ac1d130fd4 1119 set_errno(ENOMEM);
mbed_official 0:51ac1d130fd4 1120 return -1;
mbed_official 0:51ac1d130fd4 1121 }
mbed_official 0:51ac1d130fd4 1122
mbed_official 0:51ac1d130fd4 1123 /* Protect the select_cb_list */
mbed_official 0:51ac1d130fd4 1124 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1125
mbed_official 0:51ac1d130fd4 1126 /* Put this select_cb on top of list */
mbed_official 0:51ac1d130fd4 1127 select_cb.next = select_cb_list;
mbed_official 0:51ac1d130fd4 1128 if (select_cb_list != NULL) {
mbed_official 0:51ac1d130fd4 1129 select_cb_list->prev = &select_cb;
mbed_official 0:51ac1d130fd4 1130 }
mbed_official 0:51ac1d130fd4 1131 select_cb_list = &select_cb;
mbed_official 0:51ac1d130fd4 1132 /* Increasing this counter tells even_callback that the list has changed. */
mbed_official 0:51ac1d130fd4 1133 select_cb_ctr++;
mbed_official 0:51ac1d130fd4 1134
mbed_official 0:51ac1d130fd4 1135 /* Now we can safely unprotect */
mbed_official 0:51ac1d130fd4 1136 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1137
mbed_official 0:51ac1d130fd4 1138 /* Increase select_waiting for each socket we are interested in */
mbed_official 0:51ac1d130fd4 1139 for(i = 0; i < maxfdp1; i++) {
mbed_official 0:51ac1d130fd4 1140 if ((readset && FD_ISSET(i, readset)) ||
mbed_official 0:51ac1d130fd4 1141 (writeset && FD_ISSET(i, writeset)) ||
mbed_official 0:51ac1d130fd4 1142 (exceptset && FD_ISSET(i, exceptset))) {
mbed_official 0:51ac1d130fd4 1143 struct lwip_sock *sock = tryget_socket(i);
mbed_official 0:51ac1d130fd4 1144 LWIP_ASSERT("sock != NULL", sock != NULL);
mbed_official 0:51ac1d130fd4 1145 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1146 sock->select_waiting++;
mbed_official 0:51ac1d130fd4 1147 LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
mbed_official 0:51ac1d130fd4 1148 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1149 }
mbed_official 0:51ac1d130fd4 1150 }
mbed_official 0:51ac1d130fd4 1151
mbed_official 0:51ac1d130fd4 1152 /* Call lwip_selscan again: there could have been events between
mbed_official 0:51ac1d130fd4 1153 the last scan (whithout us on the list) and putting us on the list! */
mbed_official 0:51ac1d130fd4 1154 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
mbed_official 0:51ac1d130fd4 1155 if (!nready) {
mbed_official 0:51ac1d130fd4 1156 /* Still none ready, just wait to be woken */
mbed_official 0:51ac1d130fd4 1157 if (timeout == 0) {
mbed_official 0:51ac1d130fd4 1158 /* Wait forever */
mbed_official 0:51ac1d130fd4 1159 msectimeout = 0;
mbed_official 0:51ac1d130fd4 1160 } else {
mbed_official 0:51ac1d130fd4 1161 msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
mbed_official 0:51ac1d130fd4 1162 if (msectimeout == 0) {
mbed_official 0:51ac1d130fd4 1163 /* Wait 1ms at least (0 means wait forever) */
mbed_official 0:51ac1d130fd4 1164 msectimeout = 1;
mbed_official 0:51ac1d130fd4 1165 }
mbed_official 0:51ac1d130fd4 1166 }
mbed_official 0:51ac1d130fd4 1167
mbed_official 0:51ac1d130fd4 1168 waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
mbed_official 0:51ac1d130fd4 1169 }
mbed_official 0:51ac1d130fd4 1170 /* Increase select_waiting for each socket we are interested in */
mbed_official 0:51ac1d130fd4 1171 for(i = 0; i < maxfdp1; i++) {
mbed_official 0:51ac1d130fd4 1172 if ((readset && FD_ISSET(i, readset)) ||
mbed_official 0:51ac1d130fd4 1173 (writeset && FD_ISSET(i, writeset)) ||
mbed_official 0:51ac1d130fd4 1174 (exceptset && FD_ISSET(i, exceptset))) {
mbed_official 0:51ac1d130fd4 1175 struct lwip_sock *sock = tryget_socket(i);
mbed_official 0:51ac1d130fd4 1176 LWIP_ASSERT("sock != NULL", sock != NULL);
mbed_official 0:51ac1d130fd4 1177 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1178 sock->select_waiting--;
mbed_official 0:51ac1d130fd4 1179 LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
mbed_official 0:51ac1d130fd4 1180 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1181 }
mbed_official 0:51ac1d130fd4 1182 }
mbed_official 0:51ac1d130fd4 1183 /* Take us off the list */
mbed_official 0:51ac1d130fd4 1184 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1185 if (select_cb.next != NULL) {
mbed_official 0:51ac1d130fd4 1186 select_cb.next->prev = select_cb.prev;
mbed_official 0:51ac1d130fd4 1187 }
mbed_official 0:51ac1d130fd4 1188 if (select_cb_list == &select_cb) {
mbed_official 0:51ac1d130fd4 1189 LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
mbed_official 0:51ac1d130fd4 1190 select_cb_list = select_cb.next;
mbed_official 0:51ac1d130fd4 1191 } else {
mbed_official 0:51ac1d130fd4 1192 LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
mbed_official 0:51ac1d130fd4 1193 select_cb.prev->next = select_cb.next;
mbed_official 0:51ac1d130fd4 1194 }
mbed_official 0:51ac1d130fd4 1195 /* Increasing this counter tells even_callback that the list has changed. */
mbed_official 0:51ac1d130fd4 1196 select_cb_ctr++;
mbed_official 0:51ac1d130fd4 1197 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1198
mbed_official 0:51ac1d130fd4 1199 sys_sem_free(&select_cb.sem);
mbed_official 0:51ac1d130fd4 1200 if (waitres == SYS_ARCH_TIMEOUT) {
mbed_official 0:51ac1d130fd4 1201 /* Timeout */
mbed_official 0:51ac1d130fd4 1202 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
mbed_official 0:51ac1d130fd4 1203 /* This is OK as the local fdsets are empty and nready is zero,
mbed_official 0:51ac1d130fd4 1204 or we would have returned earlier. */
mbed_official 0:51ac1d130fd4 1205 goto return_copy_fdsets;
mbed_official 0:51ac1d130fd4 1206 }
mbed_official 0:51ac1d130fd4 1207
mbed_official 0:51ac1d130fd4 1208 /* See what's set */
mbed_official 0:51ac1d130fd4 1209 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
mbed_official 0:51ac1d130fd4 1210 }
mbed_official 0:51ac1d130fd4 1211
mbed_official 0:51ac1d130fd4 1212 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
mbed_official 0:51ac1d130fd4 1213 return_copy_fdsets:
mbed_official 0:51ac1d130fd4 1214 set_errno(0);
mbed_official 0:51ac1d130fd4 1215 if (readset) {
mbed_official 0:51ac1d130fd4 1216 *readset = lreadset;
mbed_official 0:51ac1d130fd4 1217 }
mbed_official 0:51ac1d130fd4 1218 if (writeset) {
mbed_official 0:51ac1d130fd4 1219 *writeset = lwriteset;
mbed_official 0:51ac1d130fd4 1220 }
mbed_official 0:51ac1d130fd4 1221 if (exceptset) {
mbed_official 0:51ac1d130fd4 1222 *exceptset = lexceptset;
mbed_official 0:51ac1d130fd4 1223 }
mbed_official 0:51ac1d130fd4 1224
mbed_official 0:51ac1d130fd4 1225
mbed_official 0:51ac1d130fd4 1226 return nready;
mbed_official 0:51ac1d130fd4 1227 }
mbed_official 0:51ac1d130fd4 1228
mbed_official 0:51ac1d130fd4 1229 /**
mbed_official 0:51ac1d130fd4 1230 * Callback registered in the netconn layer for each socket-netconn.
mbed_official 0:51ac1d130fd4 1231 * Processes recvevent (data available) and wakes up tasks waiting for select.
mbed_official 0:51ac1d130fd4 1232 */
mbed_official 0:51ac1d130fd4 1233 static void
mbed_official 0:51ac1d130fd4 1234 event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
mbed_official 0:51ac1d130fd4 1235 {
mbed_official 0:51ac1d130fd4 1236 int s;
mbed_official 0:51ac1d130fd4 1237 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 1238 struct lwip_select_cb *scb;
mbed_official 0:51ac1d130fd4 1239 int last_select_cb_ctr;
mbed_official 0:51ac1d130fd4 1240 SYS_ARCH_DECL_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1241
mbed_official 0:51ac1d130fd4 1242 LWIP_UNUSED_ARG(len);
mbed_official 0:51ac1d130fd4 1243
mbed_official 0:51ac1d130fd4 1244 /* Get socket */
mbed_official 0:51ac1d130fd4 1245 if (conn) {
mbed_official 0:51ac1d130fd4 1246 s = conn->socket;
mbed_official 0:51ac1d130fd4 1247 if (s < 0) {
mbed_official 0:51ac1d130fd4 1248 /* Data comes in right away after an accept, even though
mbed_official 0:51ac1d130fd4 1249 * the server task might not have created a new socket yet.
mbed_official 0:51ac1d130fd4 1250 * Just count down (or up) if that's the case and we
mbed_official 0:51ac1d130fd4 1251 * will use the data later. Note that only receive events
mbed_official 0:51ac1d130fd4 1252 * can happen before the new socket is set up. */
mbed_official 0:51ac1d130fd4 1253 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1254 if (conn->socket < 0) {
mbed_official 0:51ac1d130fd4 1255 if (evt == NETCONN_EVT_RCVPLUS) {
mbed_official 0:51ac1d130fd4 1256 conn->socket--;
mbed_official 0:51ac1d130fd4 1257 }
mbed_official 0:51ac1d130fd4 1258 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1259 return;
mbed_official 0:51ac1d130fd4 1260 }
mbed_official 0:51ac1d130fd4 1261 s = conn->socket;
mbed_official 0:51ac1d130fd4 1262 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1263 }
mbed_official 0:51ac1d130fd4 1264
mbed_official 0:51ac1d130fd4 1265 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 1266 if (!sock) {
mbed_official 0:51ac1d130fd4 1267 return;
mbed_official 0:51ac1d130fd4 1268 }
mbed_official 0:51ac1d130fd4 1269 } else {
mbed_official 0:51ac1d130fd4 1270 return;
mbed_official 0:51ac1d130fd4 1271 }
mbed_official 0:51ac1d130fd4 1272
mbed_official 0:51ac1d130fd4 1273 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1274 /* Set event as required */
mbed_official 0:51ac1d130fd4 1275 switch (evt) {
mbed_official 0:51ac1d130fd4 1276 case NETCONN_EVT_RCVPLUS:
mbed_official 0:51ac1d130fd4 1277 sock->rcvevent++;
mbed_official 0:51ac1d130fd4 1278 break;
mbed_official 0:51ac1d130fd4 1279 case NETCONN_EVT_RCVMINUS:
mbed_official 0:51ac1d130fd4 1280 sock->rcvevent--;
mbed_official 0:51ac1d130fd4 1281 break;
mbed_official 0:51ac1d130fd4 1282 case NETCONN_EVT_SENDPLUS:
mbed_official 0:51ac1d130fd4 1283 sock->sendevent = 1;
mbed_official 0:51ac1d130fd4 1284 break;
mbed_official 0:51ac1d130fd4 1285 case NETCONN_EVT_SENDMINUS:
mbed_official 0:51ac1d130fd4 1286 sock->sendevent = 0;
mbed_official 0:51ac1d130fd4 1287 break;
mbed_official 0:51ac1d130fd4 1288 case NETCONN_EVT_ERROR:
mbed_official 0:51ac1d130fd4 1289 sock->errevent = 1;
mbed_official 0:51ac1d130fd4 1290 break;
mbed_official 0:51ac1d130fd4 1291 default:
mbed_official 0:51ac1d130fd4 1292 LWIP_ASSERT("unknown event", 0);
mbed_official 0:51ac1d130fd4 1293 break;
mbed_official 0:51ac1d130fd4 1294 }
mbed_official 0:51ac1d130fd4 1295
mbed_official 0:51ac1d130fd4 1296 if (sock->select_waiting == 0) {
mbed_official 0:51ac1d130fd4 1297 /* noone is waiting for this socket, no need to check select_cb_list */
mbed_official 0:51ac1d130fd4 1298 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1299 return;
mbed_official 0:51ac1d130fd4 1300 }
mbed_official 0:51ac1d130fd4 1301
mbed_official 0:51ac1d130fd4 1302 /* Now decide if anyone is waiting for this socket */
mbed_official 0:51ac1d130fd4 1303 /* NOTE: This code goes through the select_cb_list list multiple times
mbed_official 0:51ac1d130fd4 1304 ONLY IF a select was actually waiting. We go through the list the number
mbed_official 0:51ac1d130fd4 1305 of waiting select calls + 1. This list is expected to be small. */
mbed_official 0:51ac1d130fd4 1306
mbed_official 0:51ac1d130fd4 1307 /* At this point, SYS_ARCH is still protected! */
mbed_official 0:51ac1d130fd4 1308 again:
mbed_official 0:51ac1d130fd4 1309 for (scb = select_cb_list; scb != NULL; scb = scb->next) {
mbed_official 0:51ac1d130fd4 1310 if (scb->sem_signalled == 0) {
mbed_official 0:51ac1d130fd4 1311 /* semaphore not signalled yet */
mbed_official 0:51ac1d130fd4 1312 int do_signal = 0;
mbed_official 0:51ac1d130fd4 1313 /* Test this select call for our socket */
mbed_official 0:51ac1d130fd4 1314 if (sock->rcvevent > 0) {
mbed_official 0:51ac1d130fd4 1315 if (scb->readset && FD_ISSET(s, scb->readset)) {
mbed_official 0:51ac1d130fd4 1316 do_signal = 1;
mbed_official 0:51ac1d130fd4 1317 }
mbed_official 0:51ac1d130fd4 1318 }
mbed_official 0:51ac1d130fd4 1319 if (sock->sendevent != 0) {
mbed_official 0:51ac1d130fd4 1320 if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
mbed_official 0:51ac1d130fd4 1321 do_signal = 1;
mbed_official 0:51ac1d130fd4 1322 }
mbed_official 0:51ac1d130fd4 1323 }
mbed_official 0:51ac1d130fd4 1324 if (sock->errevent != 0) {
mbed_official 0:51ac1d130fd4 1325 if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
mbed_official 0:51ac1d130fd4 1326 do_signal = 1;
mbed_official 0:51ac1d130fd4 1327 }
mbed_official 0:51ac1d130fd4 1328 }
mbed_official 0:51ac1d130fd4 1329 if (do_signal) {
mbed_official 0:51ac1d130fd4 1330 scb->sem_signalled = 1;
mbed_official 0:51ac1d130fd4 1331 /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
mbed_official 0:51ac1d130fd4 1332 lead to the select thread taking itself off the list, invalidagin the semaphore. */
mbed_official 0:51ac1d130fd4 1333 sys_sem_signal(&scb->sem);
mbed_official 0:51ac1d130fd4 1334 }
mbed_official 0:51ac1d130fd4 1335 }
mbed_official 0:51ac1d130fd4 1336 /* unlock interrupts with each step */
mbed_official 0:51ac1d130fd4 1337 last_select_cb_ctr = select_cb_ctr;
mbed_official 0:51ac1d130fd4 1338 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1339 /* this makes sure interrupt protection time is short */
mbed_official 0:51ac1d130fd4 1340 SYS_ARCH_PROTECT(lev);
mbed_official 0:51ac1d130fd4 1341 if (last_select_cb_ctr != select_cb_ctr) {
mbed_official 0:51ac1d130fd4 1342 /* someone has changed select_cb_list, restart at the beginning */
mbed_official 0:51ac1d130fd4 1343 goto again;
mbed_official 0:51ac1d130fd4 1344 }
mbed_official 0:51ac1d130fd4 1345 }
mbed_official 0:51ac1d130fd4 1346 SYS_ARCH_UNPROTECT(lev);
mbed_official 0:51ac1d130fd4 1347 }
mbed_official 0:51ac1d130fd4 1348
mbed_official 0:51ac1d130fd4 1349 /**
mbed_official 0:51ac1d130fd4 1350 * Unimplemented: Close one end of a full-duplex connection.
mbed_official 0:51ac1d130fd4 1351 * Currently, the full connection is closed.
mbed_official 0:51ac1d130fd4 1352 */
mbed_official 0:51ac1d130fd4 1353 int
mbed_official 0:51ac1d130fd4 1354 lwip_shutdown(int s, int how)
mbed_official 0:51ac1d130fd4 1355 {
mbed_official 0:51ac1d130fd4 1356 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 1357 err_t err;
mbed_official 0:51ac1d130fd4 1358 u8_t shut_rx = 0, shut_tx = 0;
mbed_official 0:51ac1d130fd4 1359
mbed_official 0:51ac1d130fd4 1360 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
mbed_official 0:51ac1d130fd4 1361
mbed_official 0:51ac1d130fd4 1362 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 1363 if (!sock) {
mbed_official 0:51ac1d130fd4 1364 return -1;
mbed_official 0:51ac1d130fd4 1365 }
mbed_official 0:51ac1d130fd4 1366
mbed_official 0:51ac1d130fd4 1367 if (sock->conn != NULL) {
mbed_official 0:51ac1d130fd4 1368 if (netconn_type(sock->conn) != NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 1369 sock_set_errno(sock, EOPNOTSUPP);
mbed_official 0:51ac1d130fd4 1370 return EOPNOTSUPP;
mbed_official 0:51ac1d130fd4 1371 }
mbed_official 0:51ac1d130fd4 1372 } else {
mbed_official 0:51ac1d130fd4 1373 sock_set_errno(sock, ENOTCONN);
mbed_official 0:51ac1d130fd4 1374 return ENOTCONN;
mbed_official 0:51ac1d130fd4 1375 }
mbed_official 0:51ac1d130fd4 1376
mbed_official 0:51ac1d130fd4 1377 if (how == SHUT_RD) {
mbed_official 0:51ac1d130fd4 1378 shut_rx = 1;
mbed_official 0:51ac1d130fd4 1379 } else if (how == SHUT_WR) {
mbed_official 0:51ac1d130fd4 1380 shut_tx = 1;
mbed_official 0:51ac1d130fd4 1381 } else if(how == SHUT_RDWR) {
mbed_official 0:51ac1d130fd4 1382 shut_rx = 1;
mbed_official 0:51ac1d130fd4 1383 shut_tx = 1;
mbed_official 0:51ac1d130fd4 1384 } else {
mbed_official 0:51ac1d130fd4 1385 sock_set_errno(sock, EINVAL);
mbed_official 0:51ac1d130fd4 1386 return EINVAL;
mbed_official 0:51ac1d130fd4 1387 }
mbed_official 0:51ac1d130fd4 1388 err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
mbed_official 0:51ac1d130fd4 1389
mbed_official 0:51ac1d130fd4 1390 sock_set_errno(sock, err_to_errno(err));
mbed_official 0:51ac1d130fd4 1391 return (err == ERR_OK ? 0 : -1);
mbed_official 0:51ac1d130fd4 1392 }
mbed_official 0:51ac1d130fd4 1393
mbed_official 0:51ac1d130fd4 1394 static int
mbed_official 0:51ac1d130fd4 1395 lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
mbed_official 0:51ac1d130fd4 1396 {
mbed_official 0:51ac1d130fd4 1397 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 1398 struct sockaddr_in sin;
mbed_official 0:51ac1d130fd4 1399 ip_addr_t naddr;
mbed_official 0:51ac1d130fd4 1400
mbed_official 0:51ac1d130fd4 1401 sock = get_socket(s);
mbed_official 0:51ac1d130fd4 1402 if (!sock) {
mbed_official 0:51ac1d130fd4 1403 return -1;
mbed_official 0:51ac1d130fd4 1404 }
mbed_official 0:51ac1d130fd4 1405
mbed_official 0:51ac1d130fd4 1406 memset(&sin, 0, sizeof(sin));
mbed_official 0:51ac1d130fd4 1407 sin.sin_len = sizeof(sin);
mbed_official 0:51ac1d130fd4 1408 sin.sin_family = AF_INET;
mbed_official 0:51ac1d130fd4 1409
mbed_official 0:51ac1d130fd4 1410 /* get the IP address and port */
mbed_official 0:51ac1d130fd4 1411 netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
mbed_official 0:51ac1d130fd4 1412
mbed_official 0:51ac1d130fd4 1413 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
mbed_official 0:51ac1d130fd4 1414 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
mbed_official 0:51ac1d130fd4 1415 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
mbed_official 0:51ac1d130fd4 1416
mbed_official 0:51ac1d130fd4 1417 sin.sin_port = htons(sin.sin_port);
mbed_official 0:51ac1d130fd4 1418 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
mbed_official 0:51ac1d130fd4 1419
mbed_official 0:51ac1d130fd4 1420 if (*namelen > sizeof(sin)) {
mbed_official 0:51ac1d130fd4 1421 *namelen = sizeof(sin);
mbed_official 0:51ac1d130fd4 1422 }
mbed_official 0:51ac1d130fd4 1423
mbed_official 0:51ac1d130fd4 1424 MEMCPY(name, &sin, *namelen);
mbed_official 0:51ac1d130fd4 1425 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 1426 return 0;
mbed_official 0:51ac1d130fd4 1427 }
mbed_official 0:51ac1d130fd4 1428
mbed_official 0:51ac1d130fd4 1429 int
mbed_official 0:51ac1d130fd4 1430 lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
mbed_official 0:51ac1d130fd4 1431 {
mbed_official 0:51ac1d130fd4 1432 return lwip_getaddrname(s, name, namelen, 0);
mbed_official 0:51ac1d130fd4 1433 }
mbed_official 0:51ac1d130fd4 1434
mbed_official 0:51ac1d130fd4 1435 int
mbed_official 0:51ac1d130fd4 1436 lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
mbed_official 0:51ac1d130fd4 1437 {
mbed_official 0:51ac1d130fd4 1438 return lwip_getaddrname(s, name, namelen, 1);
mbed_official 0:51ac1d130fd4 1439 }
mbed_official 0:51ac1d130fd4 1440
mbed_official 0:51ac1d130fd4 1441 int
mbed_official 0:51ac1d130fd4 1442 lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
mbed_official 0:51ac1d130fd4 1443 {
mbed_official 0:51ac1d130fd4 1444 err_t err = ERR_OK;
mbed_official 0:51ac1d130fd4 1445 struct lwip_sock *sock = get_socket(s);
mbed_official 0:51ac1d130fd4 1446 struct lwip_setgetsockopt_data data;
mbed_official 0:51ac1d130fd4 1447
mbed_official 0:51ac1d130fd4 1448 if (!sock) {
mbed_official 0:51ac1d130fd4 1449 return -1;
mbed_official 0:51ac1d130fd4 1450 }
mbed_official 0:51ac1d130fd4 1451
mbed_official 0:51ac1d130fd4 1452 if ((NULL == optval) || (NULL == optlen)) {
mbed_official 0:51ac1d130fd4 1453 sock_set_errno(sock, EFAULT);
mbed_official 0:51ac1d130fd4 1454 return -1;
mbed_official 0:51ac1d130fd4 1455 }
mbed_official 0:51ac1d130fd4 1456
mbed_official 0:51ac1d130fd4 1457 /* Do length and type checks for the various options first, to keep it readable. */
mbed_official 0:51ac1d130fd4 1458 switch (level) {
mbed_official 0:51ac1d130fd4 1459
mbed_official 0:51ac1d130fd4 1460 /* Level: SOL_SOCKET */
mbed_official 0:51ac1d130fd4 1461 case SOL_SOCKET:
mbed_official 0:51ac1d130fd4 1462 switch (optname) {
mbed_official 0:51ac1d130fd4 1463
mbed_official 0:51ac1d130fd4 1464 case SO_ACCEPTCONN:
mbed_official 0:51ac1d130fd4 1465 case SO_BROADCAST:
mbed_official 0:51ac1d130fd4 1466 /* UNIMPL case SO_DEBUG: */
mbed_official 0:51ac1d130fd4 1467 /* UNIMPL case SO_DONTROUTE: */
mbed_official 0:51ac1d130fd4 1468 case SO_ERROR:
mbed_official 0:51ac1d130fd4 1469 case SO_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1470 /* UNIMPL case SO_CONTIMEO: */
mbed_official 0:51ac1d130fd4 1471 /* UNIMPL case SO_SNDTIMEO: */
mbed_official 0:51ac1d130fd4 1472 #if LWIP_SO_RCVTIMEO
mbed_official 0:51ac1d130fd4 1473 case SO_RCVTIMEO:
mbed_official 0:51ac1d130fd4 1474 #endif /* LWIP_SO_RCVTIMEO */
mbed_official 0:51ac1d130fd4 1475 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 1476 case SO_RCVBUF:
mbed_official 0:51ac1d130fd4 1477 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 1478 /* UNIMPL case SO_OOBINLINE: */
mbed_official 0:51ac1d130fd4 1479 /* UNIMPL case SO_SNDBUF: */
mbed_official 0:51ac1d130fd4 1480 /* UNIMPL case SO_RCVLOWAT: */
mbed_official 0:51ac1d130fd4 1481 /* UNIMPL case SO_SNDLOWAT: */
mbed_official 0:51ac1d130fd4 1482 #if SO_REUSE
mbed_official 0:51ac1d130fd4 1483 case SO_REUSEADDR:
mbed_official 0:51ac1d130fd4 1484 case SO_REUSEPORT:
mbed_official 0:51ac1d130fd4 1485 #endif /* SO_REUSE */
mbed_official 0:51ac1d130fd4 1486 case SO_TYPE:
mbed_official 0:51ac1d130fd4 1487 /* UNIMPL case SO_USELOOPBACK: */
mbed_official 0:51ac1d130fd4 1488 if (*optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1489 err = EINVAL;
mbed_official 0:51ac1d130fd4 1490 }
mbed_official 0:51ac1d130fd4 1491 break;
mbed_official 0:51ac1d130fd4 1492
mbed_official 0:51ac1d130fd4 1493 case SO_NO_CHECK:
mbed_official 0:51ac1d130fd4 1494 if (*optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1495 err = EINVAL;
mbed_official 0:51ac1d130fd4 1496 }
mbed_official 0:51ac1d130fd4 1497 #if LWIP_UDP
mbed_official 0:51ac1d130fd4 1498 if ((sock->conn->type != NETCONN_UDP) ||
mbed_official 0:51ac1d130fd4 1499 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
mbed_official 0:51ac1d130fd4 1500 /* this flag is only available for UDP, not for UDP lite */
mbed_official 0:51ac1d130fd4 1501 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1502 }
mbed_official 0:51ac1d130fd4 1503 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 1504 break;
mbed_official 0:51ac1d130fd4 1505
mbed_official 0:51ac1d130fd4 1506 default:
mbed_official 0:51ac1d130fd4 1507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1508 s, optname));
mbed_official 0:51ac1d130fd4 1509 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1510 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1511 break;
mbed_official 0:51ac1d130fd4 1512
mbed_official 0:51ac1d130fd4 1513 /* Level: IPPROTO_IP */
mbed_official 0:51ac1d130fd4 1514 case IPPROTO_IP:
mbed_official 0:51ac1d130fd4 1515 switch (optname) {
mbed_official 0:51ac1d130fd4 1516 /* UNIMPL case IP_HDRINCL: */
mbed_official 0:51ac1d130fd4 1517 /* UNIMPL case IP_RCVDSTADDR: */
mbed_official 0:51ac1d130fd4 1518 /* UNIMPL case IP_RCVIF: */
mbed_official 0:51ac1d130fd4 1519 case IP_TTL:
mbed_official 0:51ac1d130fd4 1520 case IP_TOS:
mbed_official 0:51ac1d130fd4 1521 if (*optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1522 err = EINVAL;
mbed_official 0:51ac1d130fd4 1523 }
mbed_official 0:51ac1d130fd4 1524 break;
mbed_official 0:51ac1d130fd4 1525 #if LWIP_IGMP
mbed_official 0:51ac1d130fd4 1526 case IP_MULTICAST_TTL:
mbed_official 0:51ac1d130fd4 1527 if (*optlen < sizeof(u8_t)) {
mbed_official 0:51ac1d130fd4 1528 err = EINVAL;
mbed_official 0:51ac1d130fd4 1529 }
mbed_official 0:51ac1d130fd4 1530 break;
mbed_official 0:51ac1d130fd4 1531 case IP_MULTICAST_IF:
mbed_official 0:51ac1d130fd4 1532 if (*optlen < sizeof(struct in_addr)) {
mbed_official 0:51ac1d130fd4 1533 err = EINVAL;
mbed_official 0:51ac1d130fd4 1534 }
mbed_official 0:51ac1d130fd4 1535 break;
mbed_official 0:51ac1d130fd4 1536 case IP_MULTICAST_LOOP:
mbed_official 0:51ac1d130fd4 1537 if (*optlen < sizeof(u8_t)) {
mbed_official 0:51ac1d130fd4 1538 err = EINVAL;
mbed_official 0:51ac1d130fd4 1539 }
mbed_official 0:51ac1d130fd4 1540 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
mbed_official 0:51ac1d130fd4 1541 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1542 }
mbed_official 0:51ac1d130fd4 1543 break;
mbed_official 0:51ac1d130fd4 1544 #endif /* LWIP_IGMP */
mbed_official 0:51ac1d130fd4 1545
mbed_official 0:51ac1d130fd4 1546 default:
mbed_official 0:51ac1d130fd4 1547 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1548 s, optname));
mbed_official 0:51ac1d130fd4 1549 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1550 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1551 break;
mbed_official 0:51ac1d130fd4 1552
mbed_official 0:51ac1d130fd4 1553 #if LWIP_TCP
mbed_official 0:51ac1d130fd4 1554 /* Level: IPPROTO_TCP */
mbed_official 0:51ac1d130fd4 1555 case IPPROTO_TCP:
mbed_official 0:51ac1d130fd4 1556 if (*optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1557 err = EINVAL;
mbed_official 0:51ac1d130fd4 1558 break;
mbed_official 0:51ac1d130fd4 1559 }
mbed_official 0:51ac1d130fd4 1560
mbed_official 0:51ac1d130fd4 1561 /* If this is no TCP socket, ignore any options. */
mbed_official 0:51ac1d130fd4 1562 if (sock->conn->type != NETCONN_TCP)
mbed_official 0:51ac1d130fd4 1563 return 0;
mbed_official 0:51ac1d130fd4 1564
mbed_official 0:51ac1d130fd4 1565 switch (optname) {
mbed_official 0:51ac1d130fd4 1566 case TCP_NODELAY:
mbed_official 0:51ac1d130fd4 1567 case TCP_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1568 #if LWIP_TCP_KEEPALIVE
mbed_official 0:51ac1d130fd4 1569 case TCP_KEEPIDLE:
mbed_official 0:51ac1d130fd4 1570 case TCP_KEEPINTVL:
mbed_official 0:51ac1d130fd4 1571 case TCP_KEEPCNT:
mbed_official 0:51ac1d130fd4 1572 #endif /* LWIP_TCP_KEEPALIVE */
mbed_official 0:51ac1d130fd4 1573 break;
mbed_official 0:51ac1d130fd4 1574
mbed_official 0:51ac1d130fd4 1575 default:
mbed_official 0:51ac1d130fd4 1576 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1577 s, optname));
mbed_official 0:51ac1d130fd4 1578 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1579 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1580 break;
mbed_official 0:51ac1d130fd4 1581 #endif /* LWIP_TCP */
mbed_official 0:51ac1d130fd4 1582 #if LWIP_UDP && LWIP_UDPLITE
mbed_official 0:51ac1d130fd4 1583 /* Level: IPPROTO_UDPLITE */
mbed_official 0:51ac1d130fd4 1584 case IPPROTO_UDPLITE:
mbed_official 0:51ac1d130fd4 1585 if (*optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1586 err = EINVAL;
mbed_official 0:51ac1d130fd4 1587 break;
mbed_official 0:51ac1d130fd4 1588 }
mbed_official 0:51ac1d130fd4 1589
mbed_official 0:51ac1d130fd4 1590 /* If this is no UDP lite socket, ignore any options. */
mbed_official 0:51ac1d130fd4 1591 if (sock->conn->type != NETCONN_UDPLITE) {
mbed_official 0:51ac1d130fd4 1592 return 0;
mbed_official 0:51ac1d130fd4 1593 }
mbed_official 0:51ac1d130fd4 1594
mbed_official 0:51ac1d130fd4 1595 switch (optname) {
mbed_official 0:51ac1d130fd4 1596 case UDPLITE_SEND_CSCOV:
mbed_official 0:51ac1d130fd4 1597 case UDPLITE_RECV_CSCOV:
mbed_official 0:51ac1d130fd4 1598 break;
mbed_official 0:51ac1d130fd4 1599
mbed_official 0:51ac1d130fd4 1600 default:
mbed_official 0:51ac1d130fd4 1601 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1602 s, optname));
mbed_official 0:51ac1d130fd4 1603 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1604 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1605 break;
mbed_official 0:51ac1d130fd4 1606 #endif /* LWIP_UDP && LWIP_UDPLITE*/
mbed_official 0:51ac1d130fd4 1607 /* UNDEFINED LEVEL */
mbed_official 0:51ac1d130fd4 1608 default:
mbed_official 0:51ac1d130fd4 1609 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1610 s, level, optname));
mbed_official 0:51ac1d130fd4 1611 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1612 } /* switch */
mbed_official 0:51ac1d130fd4 1613
mbed_official 0:51ac1d130fd4 1614
mbed_official 0:51ac1d130fd4 1615 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 1616 sock_set_errno(sock, err);
mbed_official 0:51ac1d130fd4 1617 return -1;
mbed_official 0:51ac1d130fd4 1618 }
mbed_official 0:51ac1d130fd4 1619
mbed_official 0:51ac1d130fd4 1620 /* Now do the actual option processing */
mbed_official 0:51ac1d130fd4 1621 data.sock = sock;
mbed_official 0:51ac1d130fd4 1622 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 1623 data.s = s;
mbed_official 0:51ac1d130fd4 1624 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 1625 data.level = level;
mbed_official 0:51ac1d130fd4 1626 data.optname = optname;
mbed_official 0:51ac1d130fd4 1627 data.optval = optval;
mbed_official 0:51ac1d130fd4 1628 data.optlen = optlen;
mbed_official 0:51ac1d130fd4 1629 data.err = err;
mbed_official 0:51ac1d130fd4 1630 tcpip_callback(lwip_getsockopt_internal, &data);
mbed_official 0:51ac1d130fd4 1631 sys_arch_sem_wait(&sock->conn->op_completed, 0);
mbed_official 0:51ac1d130fd4 1632 /* maybe lwip_getsockopt_internal has changed err */
mbed_official 0:51ac1d130fd4 1633 err = data.err;
mbed_official 0:51ac1d130fd4 1634
mbed_official 0:51ac1d130fd4 1635 sock_set_errno(sock, err);
mbed_official 0:51ac1d130fd4 1636 return err ? -1 : 0;
mbed_official 0:51ac1d130fd4 1637 }
mbed_official 0:51ac1d130fd4 1638
mbed_official 0:51ac1d130fd4 1639 static void
mbed_official 0:51ac1d130fd4 1640 lwip_getsockopt_internal(void *arg)
mbed_official 0:51ac1d130fd4 1641 {
mbed_official 0:51ac1d130fd4 1642 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 1643 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 1644 int s;
mbed_official 0:51ac1d130fd4 1645 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 1646 int level, optname;
mbed_official 0:51ac1d130fd4 1647 void *optval;
mbed_official 0:51ac1d130fd4 1648 struct lwip_setgetsockopt_data *data;
mbed_official 0:51ac1d130fd4 1649
mbed_official 0:51ac1d130fd4 1650 LWIP_ASSERT("arg != NULL", arg != NULL);
mbed_official 0:51ac1d130fd4 1651
mbed_official 0:51ac1d130fd4 1652 data = (struct lwip_setgetsockopt_data*)arg;
mbed_official 0:51ac1d130fd4 1653 sock = data->sock;
mbed_official 0:51ac1d130fd4 1654 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 1655 s = data->s;
mbed_official 0:51ac1d130fd4 1656 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 1657 level = data->level;
mbed_official 0:51ac1d130fd4 1658 optname = data->optname;
mbed_official 0:51ac1d130fd4 1659 optval = data->optval;
mbed_official 0:51ac1d130fd4 1660
mbed_official 0:51ac1d130fd4 1661 switch (level) {
mbed_official 0:51ac1d130fd4 1662
mbed_official 0:51ac1d130fd4 1663 /* Level: SOL_SOCKET */
mbed_official 0:51ac1d130fd4 1664 case SOL_SOCKET:
mbed_official 0:51ac1d130fd4 1665 switch (optname) {
mbed_official 0:51ac1d130fd4 1666
mbed_official 0:51ac1d130fd4 1667 /* The option flags */
mbed_official 0:51ac1d130fd4 1668 case SO_ACCEPTCONN:
mbed_official 0:51ac1d130fd4 1669 case SO_BROADCAST:
mbed_official 0:51ac1d130fd4 1670 /* UNIMPL case SO_DEBUG: */
mbed_official 0:51ac1d130fd4 1671 /* UNIMPL case SO_DONTROUTE: */
mbed_official 0:51ac1d130fd4 1672 case SO_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1673 /* UNIMPL case SO_OOBINCLUDE: */
mbed_official 0:51ac1d130fd4 1674 #if SO_REUSE
mbed_official 0:51ac1d130fd4 1675 case SO_REUSEADDR:
mbed_official 0:51ac1d130fd4 1676 case SO_REUSEPORT:
mbed_official 0:51ac1d130fd4 1677 #endif /* SO_REUSE */
mbed_official 0:51ac1d130fd4 1678 /*case SO_USELOOPBACK: UNIMPL */
mbed_official 0:51ac1d130fd4 1679 *(int*)optval = sock->conn->pcb.ip->so_options & optname;
mbed_official 0:51ac1d130fd4 1680 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
mbed_official 0:51ac1d130fd4 1681 s, optname, (*(int*)optval?"on":"off")));
mbed_official 0:51ac1d130fd4 1682 break;
mbed_official 0:51ac1d130fd4 1683
mbed_official 0:51ac1d130fd4 1684 case SO_TYPE:
mbed_official 0:51ac1d130fd4 1685 switch (NETCONNTYPE_GROUP(sock->conn->type)) {
mbed_official 0:51ac1d130fd4 1686 case NETCONN_RAW:
mbed_official 0:51ac1d130fd4 1687 *(int*)optval = SOCK_RAW;
mbed_official 0:51ac1d130fd4 1688 break;
mbed_official 0:51ac1d130fd4 1689 case NETCONN_TCP:
mbed_official 0:51ac1d130fd4 1690 *(int*)optval = SOCK_STREAM;
mbed_official 0:51ac1d130fd4 1691 break;
mbed_official 0:51ac1d130fd4 1692 case NETCONN_UDP:
mbed_official 0:51ac1d130fd4 1693 *(int*)optval = SOCK_DGRAM;
mbed_official 0:51ac1d130fd4 1694 break;
mbed_official 0:51ac1d130fd4 1695 default: /* unrecognized socket type */
mbed_official 0:51ac1d130fd4 1696 *(int*)optval = sock->conn->type;
mbed_official 0:51ac1d130fd4 1697 LWIP_DEBUGF(SOCKETS_DEBUG,
mbed_official 0:51ac1d130fd4 1698 ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
mbed_official 0:51ac1d130fd4 1699 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1700 } /* switch (sock->conn->type) */
mbed_official 0:51ac1d130fd4 1701 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
mbed_official 0:51ac1d130fd4 1702 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1703 break;
mbed_official 0:51ac1d130fd4 1704
mbed_official 0:51ac1d130fd4 1705 case SO_ERROR:
mbed_official 0:51ac1d130fd4 1706 /* only overwrite ERR_OK or tempoary errors */
mbed_official 0:51ac1d130fd4 1707 if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
mbed_official 0:51ac1d130fd4 1708 sock_set_errno(sock, err_to_errno(sock->conn->last_err));
mbed_official 0:51ac1d130fd4 1709 }
mbed_official 0:51ac1d130fd4 1710 *(int *)optval = sock->err;
mbed_official 0:51ac1d130fd4 1711 sock->err = 0;
mbed_official 0:51ac1d130fd4 1712 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
mbed_official 0:51ac1d130fd4 1713 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1714 break;
mbed_official 0:51ac1d130fd4 1715
mbed_official 0:51ac1d130fd4 1716 #if LWIP_SO_RCVTIMEO
mbed_official 0:51ac1d130fd4 1717 case SO_RCVTIMEO:
mbed_official 0:51ac1d130fd4 1718 *(int *)optval = netconn_get_recvtimeout(sock->conn);
mbed_official 0:51ac1d130fd4 1719 break;
mbed_official 0:51ac1d130fd4 1720 #endif /* LWIP_SO_RCVTIMEO */
mbed_official 0:51ac1d130fd4 1721 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 1722 case SO_RCVBUF:
mbed_official 0:51ac1d130fd4 1723 *(int *)optval = netconn_get_recvbufsize(sock->conn);
mbed_official 0:51ac1d130fd4 1724 break;
mbed_official 0:51ac1d130fd4 1725 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 1726 #if LWIP_UDP
mbed_official 0:51ac1d130fd4 1727 case SO_NO_CHECK:
mbed_official 0:51ac1d130fd4 1728 *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
mbed_official 0:51ac1d130fd4 1729 break;
mbed_official 0:51ac1d130fd4 1730 #endif /* LWIP_UDP*/
mbed_official 0:51ac1d130fd4 1731 default:
mbed_official 0:51ac1d130fd4 1732 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 1733 break;
mbed_official 0:51ac1d130fd4 1734 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1735 break;
mbed_official 0:51ac1d130fd4 1736
mbed_official 0:51ac1d130fd4 1737 /* Level: IPPROTO_IP */
mbed_official 0:51ac1d130fd4 1738 case IPPROTO_IP:
mbed_official 0:51ac1d130fd4 1739 switch (optname) {
mbed_official 0:51ac1d130fd4 1740 case IP_TTL:
mbed_official 0:51ac1d130fd4 1741 *(int*)optval = sock->conn->pcb.ip->ttl;
mbed_official 0:51ac1d130fd4 1742 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
mbed_official 0:51ac1d130fd4 1743 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1744 break;
mbed_official 0:51ac1d130fd4 1745 case IP_TOS:
mbed_official 0:51ac1d130fd4 1746 *(int*)optval = sock->conn->pcb.ip->tos;
mbed_official 0:51ac1d130fd4 1747 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
mbed_official 0:51ac1d130fd4 1748 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1749 break;
mbed_official 0:51ac1d130fd4 1750 #if LWIP_IGMP
mbed_official 0:51ac1d130fd4 1751 case IP_MULTICAST_TTL:
mbed_official 0:51ac1d130fd4 1752 *(u8_t*)optval = sock->conn->pcb.ip->ttl;
mbed_official 0:51ac1d130fd4 1753 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
mbed_official 0:51ac1d130fd4 1754 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1755 break;
mbed_official 0:51ac1d130fd4 1756 case IP_MULTICAST_IF:
mbed_official 0:51ac1d130fd4 1757 inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
mbed_official 0:51ac1d130fd4 1758 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
mbed_official 0:51ac1d130fd4 1759 s, *(u32_t *)optval));
mbed_official 0:51ac1d130fd4 1760 break;
mbed_official 0:51ac1d130fd4 1761 case IP_MULTICAST_LOOP:
mbed_official 0:51ac1d130fd4 1762 if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
mbed_official 0:51ac1d130fd4 1763 *(u8_t*)optval = 1;
mbed_official 0:51ac1d130fd4 1764 } else {
mbed_official 0:51ac1d130fd4 1765 *(u8_t*)optval = 0;
mbed_official 0:51ac1d130fd4 1766 }
mbed_official 0:51ac1d130fd4 1767 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
mbed_official 0:51ac1d130fd4 1768 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1769 break;
mbed_official 0:51ac1d130fd4 1770 #endif /* LWIP_IGMP */
mbed_official 0:51ac1d130fd4 1771 default:
mbed_official 0:51ac1d130fd4 1772 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 1773 break;
mbed_official 0:51ac1d130fd4 1774 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1775 break;
mbed_official 0:51ac1d130fd4 1776
mbed_official 0:51ac1d130fd4 1777 #if LWIP_TCP
mbed_official 0:51ac1d130fd4 1778 /* Level: IPPROTO_TCP */
mbed_official 0:51ac1d130fd4 1779 case IPPROTO_TCP:
mbed_official 0:51ac1d130fd4 1780 switch (optname) {
mbed_official 0:51ac1d130fd4 1781 case TCP_NODELAY:
mbed_official 0:51ac1d130fd4 1782 *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
mbed_official 0:51ac1d130fd4 1783 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
mbed_official 0:51ac1d130fd4 1784 s, (*(int*)optval)?"on":"off") );
mbed_official 0:51ac1d130fd4 1785 break;
mbed_official 0:51ac1d130fd4 1786 case TCP_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1787 *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
mbed_official 0:51ac1d130fd4 1788 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
mbed_official 0:51ac1d130fd4 1789 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1790 break;
mbed_official 0:51ac1d130fd4 1791
mbed_official 0:51ac1d130fd4 1792 #if LWIP_TCP_KEEPALIVE
mbed_official 0:51ac1d130fd4 1793 case TCP_KEEPIDLE:
mbed_official 0:51ac1d130fd4 1794 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
mbed_official 0:51ac1d130fd4 1795 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
mbed_official 0:51ac1d130fd4 1796 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1797 break;
mbed_official 0:51ac1d130fd4 1798 case TCP_KEEPINTVL:
mbed_official 0:51ac1d130fd4 1799 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
mbed_official 0:51ac1d130fd4 1800 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
mbed_official 0:51ac1d130fd4 1801 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1802 break;
mbed_official 0:51ac1d130fd4 1803 case TCP_KEEPCNT:
mbed_official 0:51ac1d130fd4 1804 *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
mbed_official 0:51ac1d130fd4 1805 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
mbed_official 0:51ac1d130fd4 1806 s, *(int *)optval));
mbed_official 0:51ac1d130fd4 1807 break;
mbed_official 0:51ac1d130fd4 1808 #endif /* LWIP_TCP_KEEPALIVE */
mbed_official 0:51ac1d130fd4 1809 default:
mbed_official 0:51ac1d130fd4 1810 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 1811 break;
mbed_official 0:51ac1d130fd4 1812 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1813 break;
mbed_official 0:51ac1d130fd4 1814 #endif /* LWIP_TCP */
mbed_official 0:51ac1d130fd4 1815 #if LWIP_UDP && LWIP_UDPLITE
mbed_official 0:51ac1d130fd4 1816 /* Level: IPPROTO_UDPLITE */
mbed_official 0:51ac1d130fd4 1817 case IPPROTO_UDPLITE:
mbed_official 0:51ac1d130fd4 1818 switch (optname) {
mbed_official 0:51ac1d130fd4 1819 case UDPLITE_SEND_CSCOV:
mbed_official 0:51ac1d130fd4 1820 *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
mbed_official 0:51ac1d130fd4 1821 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
mbed_official 0:51ac1d130fd4 1822 s, (*(int*)optval)) );
mbed_official 0:51ac1d130fd4 1823 break;
mbed_official 0:51ac1d130fd4 1824 case UDPLITE_RECV_CSCOV:
mbed_official 0:51ac1d130fd4 1825 *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
mbed_official 0:51ac1d130fd4 1826 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
mbed_official 0:51ac1d130fd4 1827 s, (*(int*)optval)) );
mbed_official 0:51ac1d130fd4 1828 break;
mbed_official 0:51ac1d130fd4 1829 default:
mbed_official 0:51ac1d130fd4 1830 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 1831 break;
mbed_official 0:51ac1d130fd4 1832 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1833 break;
mbed_official 0:51ac1d130fd4 1834 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 1835 default:
mbed_official 0:51ac1d130fd4 1836 LWIP_ASSERT("unhandled level", 0);
mbed_official 0:51ac1d130fd4 1837 break;
mbed_official 0:51ac1d130fd4 1838 } /* switch (level) */
mbed_official 0:51ac1d130fd4 1839 sys_sem_signal(&sock->conn->op_completed);
mbed_official 0:51ac1d130fd4 1840 }
mbed_official 0:51ac1d130fd4 1841
mbed_official 0:51ac1d130fd4 1842 int
mbed_official 0:51ac1d130fd4 1843 lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
mbed_official 0:51ac1d130fd4 1844 {
mbed_official 0:51ac1d130fd4 1845 struct lwip_sock *sock = get_socket(s);
mbed_official 0:51ac1d130fd4 1846 err_t err = ERR_OK;
mbed_official 0:51ac1d130fd4 1847 struct lwip_setgetsockopt_data data;
mbed_official 0:51ac1d130fd4 1848
mbed_official 0:51ac1d130fd4 1849 if (!sock) {
mbed_official 0:51ac1d130fd4 1850 return -1;
mbed_official 0:51ac1d130fd4 1851 }
mbed_official 0:51ac1d130fd4 1852
mbed_official 0:51ac1d130fd4 1853 if (NULL == optval) {
mbed_official 0:51ac1d130fd4 1854 sock_set_errno(sock, EFAULT);
mbed_official 0:51ac1d130fd4 1855 return -1;
mbed_official 0:51ac1d130fd4 1856 }
mbed_official 0:51ac1d130fd4 1857
mbed_official 0:51ac1d130fd4 1858 /* Do length and type checks for the various options first, to keep it readable. */
mbed_official 0:51ac1d130fd4 1859 switch (level) {
mbed_official 0:51ac1d130fd4 1860
mbed_official 0:51ac1d130fd4 1861 /* Level: SOL_SOCKET */
mbed_official 0:51ac1d130fd4 1862 case SOL_SOCKET:
mbed_official 0:51ac1d130fd4 1863 switch (optname) {
mbed_official 0:51ac1d130fd4 1864
mbed_official 0:51ac1d130fd4 1865 case SO_BROADCAST:
mbed_official 0:51ac1d130fd4 1866 /* UNIMPL case SO_DEBUG: */
mbed_official 0:51ac1d130fd4 1867 /* UNIMPL case SO_DONTROUTE: */
mbed_official 0:51ac1d130fd4 1868 case SO_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1869 /* UNIMPL case case SO_CONTIMEO: */
mbed_official 0:51ac1d130fd4 1870 /* UNIMPL case case SO_SNDTIMEO: */
mbed_official 0:51ac1d130fd4 1871 #if LWIP_SO_RCVTIMEO
mbed_official 0:51ac1d130fd4 1872 case SO_RCVTIMEO:
mbed_official 0:51ac1d130fd4 1873 #endif /* LWIP_SO_RCVTIMEO */
mbed_official 0:51ac1d130fd4 1874 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 1875 case SO_RCVBUF:
mbed_official 0:51ac1d130fd4 1876 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 1877 /* UNIMPL case SO_OOBINLINE: */
mbed_official 0:51ac1d130fd4 1878 /* UNIMPL case SO_SNDBUF: */
mbed_official 0:51ac1d130fd4 1879 /* UNIMPL case SO_RCVLOWAT: */
mbed_official 0:51ac1d130fd4 1880 /* UNIMPL case SO_SNDLOWAT: */
mbed_official 0:51ac1d130fd4 1881 #if SO_REUSE
mbed_official 0:51ac1d130fd4 1882 case SO_REUSEADDR:
mbed_official 0:51ac1d130fd4 1883 case SO_REUSEPORT:
mbed_official 0:51ac1d130fd4 1884 #endif /* SO_REUSE */
mbed_official 0:51ac1d130fd4 1885 /* UNIMPL case SO_USELOOPBACK: */
mbed_official 0:51ac1d130fd4 1886 if (optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1887 err = EINVAL;
mbed_official 0:51ac1d130fd4 1888 }
mbed_official 0:51ac1d130fd4 1889 break;
mbed_official 0:51ac1d130fd4 1890 case SO_NO_CHECK:
mbed_official 0:51ac1d130fd4 1891 if (optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1892 err = EINVAL;
mbed_official 0:51ac1d130fd4 1893 }
mbed_official 0:51ac1d130fd4 1894 #if LWIP_UDP
mbed_official 0:51ac1d130fd4 1895 if ((sock->conn->type != NETCONN_UDP) ||
mbed_official 0:51ac1d130fd4 1896 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
mbed_official 0:51ac1d130fd4 1897 /* this flag is only available for UDP, not for UDP lite */
mbed_official 0:51ac1d130fd4 1898 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1899 }
mbed_official 0:51ac1d130fd4 1900 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 1901 break;
mbed_official 0:51ac1d130fd4 1902 default:
mbed_official 0:51ac1d130fd4 1903 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1904 s, optname));
mbed_official 0:51ac1d130fd4 1905 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1906 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1907 break;
mbed_official 0:51ac1d130fd4 1908
mbed_official 0:51ac1d130fd4 1909 /* Level: IPPROTO_IP */
mbed_official 0:51ac1d130fd4 1910 case IPPROTO_IP:
mbed_official 0:51ac1d130fd4 1911 switch (optname) {
mbed_official 0:51ac1d130fd4 1912 /* UNIMPL case IP_HDRINCL: */
mbed_official 0:51ac1d130fd4 1913 /* UNIMPL case IP_RCVDSTADDR: */
mbed_official 0:51ac1d130fd4 1914 /* UNIMPL case IP_RCVIF: */
mbed_official 0:51ac1d130fd4 1915 case IP_TTL:
mbed_official 0:51ac1d130fd4 1916 case IP_TOS:
mbed_official 0:51ac1d130fd4 1917 if (optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1918 err = EINVAL;
mbed_official 0:51ac1d130fd4 1919 }
mbed_official 0:51ac1d130fd4 1920 break;
mbed_official 0:51ac1d130fd4 1921 #if LWIP_IGMP
mbed_official 0:51ac1d130fd4 1922 case IP_MULTICAST_TTL:
mbed_official 0:51ac1d130fd4 1923 if (optlen < sizeof(u8_t)) {
mbed_official 0:51ac1d130fd4 1924 err = EINVAL;
mbed_official 0:51ac1d130fd4 1925 }
mbed_official 0:51ac1d130fd4 1926 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
mbed_official 0:51ac1d130fd4 1927 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1928 }
mbed_official 0:51ac1d130fd4 1929 break;
mbed_official 0:51ac1d130fd4 1930 case IP_MULTICAST_IF:
mbed_official 0:51ac1d130fd4 1931 if (optlen < sizeof(struct in_addr)) {
mbed_official 0:51ac1d130fd4 1932 err = EINVAL;
mbed_official 0:51ac1d130fd4 1933 }
mbed_official 0:51ac1d130fd4 1934 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
mbed_official 0:51ac1d130fd4 1935 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1936 }
mbed_official 0:51ac1d130fd4 1937 break;
mbed_official 0:51ac1d130fd4 1938 case IP_MULTICAST_LOOP:
mbed_official 0:51ac1d130fd4 1939 if (optlen < sizeof(u8_t)) {
mbed_official 0:51ac1d130fd4 1940 err = EINVAL;
mbed_official 0:51ac1d130fd4 1941 }
mbed_official 0:51ac1d130fd4 1942 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
mbed_official 0:51ac1d130fd4 1943 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1944 }
mbed_official 0:51ac1d130fd4 1945 break;
mbed_official 0:51ac1d130fd4 1946 case IP_ADD_MEMBERSHIP:
mbed_official 0:51ac1d130fd4 1947 case IP_DROP_MEMBERSHIP:
mbed_official 0:51ac1d130fd4 1948 if (optlen < sizeof(struct ip_mreq)) {
mbed_official 0:51ac1d130fd4 1949 err = EINVAL;
mbed_official 0:51ac1d130fd4 1950 }
mbed_official 0:51ac1d130fd4 1951 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
mbed_official 0:51ac1d130fd4 1952 err = EAFNOSUPPORT;
mbed_official 0:51ac1d130fd4 1953 }
mbed_official 0:51ac1d130fd4 1954 break;
mbed_official 0:51ac1d130fd4 1955 #endif /* LWIP_IGMP */
mbed_official 0:51ac1d130fd4 1956 default:
mbed_official 0:51ac1d130fd4 1957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1958 s, optname));
mbed_official 0:51ac1d130fd4 1959 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1960 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1961 break;
mbed_official 0:51ac1d130fd4 1962
mbed_official 0:51ac1d130fd4 1963 #if LWIP_TCP
mbed_official 0:51ac1d130fd4 1964 /* Level: IPPROTO_TCP */
mbed_official 0:51ac1d130fd4 1965 case IPPROTO_TCP:
mbed_official 0:51ac1d130fd4 1966 if (optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1967 err = EINVAL;
mbed_official 0:51ac1d130fd4 1968 break;
mbed_official 0:51ac1d130fd4 1969 }
mbed_official 0:51ac1d130fd4 1970
mbed_official 0:51ac1d130fd4 1971 /* If this is no TCP socket, ignore any options. */
mbed_official 0:51ac1d130fd4 1972 if (sock->conn->type != NETCONN_TCP)
mbed_official 0:51ac1d130fd4 1973 return 0;
mbed_official 0:51ac1d130fd4 1974
mbed_official 0:51ac1d130fd4 1975 switch (optname) {
mbed_official 0:51ac1d130fd4 1976 case TCP_NODELAY:
mbed_official 0:51ac1d130fd4 1977 case TCP_KEEPALIVE:
mbed_official 0:51ac1d130fd4 1978 #if LWIP_TCP_KEEPALIVE
mbed_official 0:51ac1d130fd4 1979 case TCP_KEEPIDLE:
mbed_official 0:51ac1d130fd4 1980 case TCP_KEEPINTVL:
mbed_official 0:51ac1d130fd4 1981 case TCP_KEEPCNT:
mbed_official 0:51ac1d130fd4 1982 #endif /* LWIP_TCP_KEEPALIVE */
mbed_official 0:51ac1d130fd4 1983 break;
mbed_official 0:51ac1d130fd4 1984
mbed_official 0:51ac1d130fd4 1985 default:
mbed_official 0:51ac1d130fd4 1986 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 1987 s, optname));
mbed_official 0:51ac1d130fd4 1988 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 1989 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 1990 break;
mbed_official 0:51ac1d130fd4 1991 #endif /* LWIP_TCP */
mbed_official 0:51ac1d130fd4 1992 #if LWIP_UDP && LWIP_UDPLITE
mbed_official 0:51ac1d130fd4 1993 /* Level: IPPROTO_UDPLITE */
mbed_official 0:51ac1d130fd4 1994 case IPPROTO_UDPLITE:
mbed_official 0:51ac1d130fd4 1995 if (optlen < sizeof(int)) {
mbed_official 0:51ac1d130fd4 1996 err = EINVAL;
mbed_official 0:51ac1d130fd4 1997 break;
mbed_official 0:51ac1d130fd4 1998 }
mbed_official 0:51ac1d130fd4 1999
mbed_official 0:51ac1d130fd4 2000 /* If this is no UDP lite socket, ignore any options. */
mbed_official 0:51ac1d130fd4 2001 if (sock->conn->type != NETCONN_UDPLITE)
mbed_official 0:51ac1d130fd4 2002 return 0;
mbed_official 0:51ac1d130fd4 2003
mbed_official 0:51ac1d130fd4 2004 switch (optname) {
mbed_official 0:51ac1d130fd4 2005 case UDPLITE_SEND_CSCOV:
mbed_official 0:51ac1d130fd4 2006 case UDPLITE_RECV_CSCOV:
mbed_official 0:51ac1d130fd4 2007 break;
mbed_official 0:51ac1d130fd4 2008
mbed_official 0:51ac1d130fd4 2009 default:
mbed_official 0:51ac1d130fd4 2010 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 2011 s, optname));
mbed_official 0:51ac1d130fd4 2012 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 2013 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 2014 break;
mbed_official 0:51ac1d130fd4 2015 #endif /* LWIP_UDP && LWIP_UDPLITE */
mbed_official 0:51ac1d130fd4 2016 /* UNDEFINED LEVEL */
mbed_official 0:51ac1d130fd4 2017 default:
mbed_official 0:51ac1d130fd4 2018 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
mbed_official 0:51ac1d130fd4 2019 s, level, optname));
mbed_official 0:51ac1d130fd4 2020 err = ENOPROTOOPT;
mbed_official 0:51ac1d130fd4 2021 } /* switch (level) */
mbed_official 0:51ac1d130fd4 2022
mbed_official 0:51ac1d130fd4 2023
mbed_official 0:51ac1d130fd4 2024 if (err != ERR_OK) {
mbed_official 0:51ac1d130fd4 2025 sock_set_errno(sock, err);
mbed_official 0:51ac1d130fd4 2026 return -1;
mbed_official 0:51ac1d130fd4 2027 }
mbed_official 0:51ac1d130fd4 2028
mbed_official 0:51ac1d130fd4 2029
mbed_official 0:51ac1d130fd4 2030 /* Now do the actual option processing */
mbed_official 0:51ac1d130fd4 2031 data.sock = sock;
mbed_official 0:51ac1d130fd4 2032 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 2033 data.s = s;
mbed_official 0:51ac1d130fd4 2034 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 2035 data.level = level;
mbed_official 0:51ac1d130fd4 2036 data.optname = optname;
mbed_official 0:51ac1d130fd4 2037 data.optval = (void*)optval;
mbed_official 0:51ac1d130fd4 2038 data.optlen = &optlen;
mbed_official 0:51ac1d130fd4 2039 data.err = err;
mbed_official 0:51ac1d130fd4 2040 tcpip_callback(lwip_setsockopt_internal, &data);
mbed_official 0:51ac1d130fd4 2041 sys_arch_sem_wait(&sock->conn->op_completed, 0);
mbed_official 0:51ac1d130fd4 2042 /* maybe lwip_setsockopt_internal has changed err */
mbed_official 0:51ac1d130fd4 2043 err = data.err;
mbed_official 0:51ac1d130fd4 2044
mbed_official 0:51ac1d130fd4 2045 sock_set_errno(sock, err);
mbed_official 0:51ac1d130fd4 2046 return err ? -1 : 0;
mbed_official 0:51ac1d130fd4 2047 }
mbed_official 0:51ac1d130fd4 2048
mbed_official 0:51ac1d130fd4 2049 static void
mbed_official 0:51ac1d130fd4 2050 lwip_setsockopt_internal(void *arg)
mbed_official 0:51ac1d130fd4 2051 {
mbed_official 0:51ac1d130fd4 2052 struct lwip_sock *sock;
mbed_official 0:51ac1d130fd4 2053 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 2054 int s;
mbed_official 0:51ac1d130fd4 2055 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 2056 int level, optname;
mbed_official 0:51ac1d130fd4 2057 const void *optval;
mbed_official 0:51ac1d130fd4 2058 struct lwip_setgetsockopt_data *data;
mbed_official 0:51ac1d130fd4 2059
mbed_official 0:51ac1d130fd4 2060 LWIP_ASSERT("arg != NULL", arg != NULL);
mbed_official 0:51ac1d130fd4 2061
mbed_official 0:51ac1d130fd4 2062 data = (struct lwip_setgetsockopt_data*)arg;
mbed_official 0:51ac1d130fd4 2063 sock = data->sock;
mbed_official 0:51ac1d130fd4 2064 #ifdef LWIP_DEBUG
mbed_official 0:51ac1d130fd4 2065 s = data->s;
mbed_official 0:51ac1d130fd4 2066 #endif /* LWIP_DEBUG */
mbed_official 0:51ac1d130fd4 2067 level = data->level;
mbed_official 0:51ac1d130fd4 2068 optname = data->optname;
mbed_official 0:51ac1d130fd4 2069 optval = data->optval;
mbed_official 0:51ac1d130fd4 2070
mbed_official 0:51ac1d130fd4 2071 switch (level) {
mbed_official 0:51ac1d130fd4 2072
mbed_official 0:51ac1d130fd4 2073 /* Level: SOL_SOCKET */
mbed_official 0:51ac1d130fd4 2074 case SOL_SOCKET:
mbed_official 0:51ac1d130fd4 2075 switch (optname) {
mbed_official 0:51ac1d130fd4 2076
mbed_official 0:51ac1d130fd4 2077 /* The option flags */
mbed_official 0:51ac1d130fd4 2078 case SO_BROADCAST:
mbed_official 0:51ac1d130fd4 2079 /* UNIMPL case SO_DEBUG: */
mbed_official 0:51ac1d130fd4 2080 /* UNIMPL case SO_DONTROUTE: */
mbed_official 0:51ac1d130fd4 2081 case SO_KEEPALIVE:
mbed_official 0:51ac1d130fd4 2082 /* UNIMPL case SO_OOBINCLUDE: */
mbed_official 0:51ac1d130fd4 2083 #if SO_REUSE
mbed_official 0:51ac1d130fd4 2084 case SO_REUSEADDR:
mbed_official 0:51ac1d130fd4 2085 case SO_REUSEPORT:
mbed_official 0:51ac1d130fd4 2086 #endif /* SO_REUSE */
mbed_official 0:51ac1d130fd4 2087 /* UNIMPL case SO_USELOOPBACK: */
mbed_official 0:51ac1d130fd4 2088 if (*(int*)optval) {
mbed_official 0:51ac1d130fd4 2089 sock->conn->pcb.ip->so_options |= optname;
mbed_official 0:51ac1d130fd4 2090 } else {
mbed_official 0:51ac1d130fd4 2091 sock->conn->pcb.ip->so_options &= ~optname;
mbed_official 0:51ac1d130fd4 2092 }
mbed_official 0:51ac1d130fd4 2093 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
mbed_official 0:51ac1d130fd4 2094 s, optname, (*(int*)optval?"on":"off")));
mbed_official 0:51ac1d130fd4 2095 break;
mbed_official 0:51ac1d130fd4 2096 #if LWIP_SO_RCVTIMEO
mbed_official 0:51ac1d130fd4 2097 case SO_RCVTIMEO:
mbed_official 0:51ac1d130fd4 2098 netconn_set_recvtimeout(sock->conn, *(int*)optval);
mbed_official 0:51ac1d130fd4 2099 break;
mbed_official 0:51ac1d130fd4 2100 #endif /* LWIP_SO_RCVTIMEO */
mbed_official 0:51ac1d130fd4 2101 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 2102 case SO_RCVBUF:
mbed_official 0:51ac1d130fd4 2103 netconn_set_recvbufsize(sock->conn, *(int*)optval);
mbed_official 0:51ac1d130fd4 2104 break;
mbed_official 0:51ac1d130fd4 2105 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 2106 #if LWIP_UDP
mbed_official 0:51ac1d130fd4 2107 case SO_NO_CHECK:
mbed_official 0:51ac1d130fd4 2108 if (*(int*)optval) {
mbed_official 0:51ac1d130fd4 2109 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
mbed_official 0:51ac1d130fd4 2110 } else {
mbed_official 0:51ac1d130fd4 2111 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
mbed_official 0:51ac1d130fd4 2112 }
mbed_official 0:51ac1d130fd4 2113 break;
mbed_official 0:51ac1d130fd4 2114 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 2115 default:
mbed_official 0:51ac1d130fd4 2116 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 2117 break;
mbed_official 0:51ac1d130fd4 2118 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 2119 break;
mbed_official 0:51ac1d130fd4 2120
mbed_official 0:51ac1d130fd4 2121 /* Level: IPPROTO_IP */
mbed_official 0:51ac1d130fd4 2122 case IPPROTO_IP:
mbed_official 0:51ac1d130fd4 2123 switch (optname) {
mbed_official 0:51ac1d130fd4 2124 case IP_TTL:
mbed_official 0:51ac1d130fd4 2125 sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2126 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
mbed_official 0:51ac1d130fd4 2127 s, sock->conn->pcb.ip->ttl));
mbed_official 0:51ac1d130fd4 2128 break;
mbed_official 0:51ac1d130fd4 2129 case IP_TOS:
mbed_official 0:51ac1d130fd4 2130 sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2131 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
mbed_official 0:51ac1d130fd4 2132 s, sock->conn->pcb.ip->tos));
mbed_official 0:51ac1d130fd4 2133 break;
mbed_official 0:51ac1d130fd4 2134 #if LWIP_IGMP
mbed_official 0:51ac1d130fd4 2135 case IP_MULTICAST_TTL:
mbed_official 0:51ac1d130fd4 2136 sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
mbed_official 0:51ac1d130fd4 2137 break;
mbed_official 0:51ac1d130fd4 2138 case IP_MULTICAST_IF:
mbed_official 0:51ac1d130fd4 2139 inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
mbed_official 0:51ac1d130fd4 2140 break;
mbed_official 0:51ac1d130fd4 2141 case IP_MULTICAST_LOOP:
mbed_official 0:51ac1d130fd4 2142 if (*(u8_t*)optval) {
mbed_official 0:51ac1d130fd4 2143 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
mbed_official 0:51ac1d130fd4 2144 } else {
mbed_official 0:51ac1d130fd4 2145 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
mbed_official 0:51ac1d130fd4 2146 }
mbed_official 0:51ac1d130fd4 2147 break;
mbed_official 0:51ac1d130fd4 2148 case IP_ADD_MEMBERSHIP:
mbed_official 0:51ac1d130fd4 2149 case IP_DROP_MEMBERSHIP:
mbed_official 0:51ac1d130fd4 2150 {
mbed_official 0:51ac1d130fd4 2151 /* If this is a TCP or a RAW socket, ignore these options. */
mbed_official 0:51ac1d130fd4 2152 struct ip_mreq *imr = (struct ip_mreq *)optval;
mbed_official 0:51ac1d130fd4 2153 ip_addr_t if_addr;
mbed_official 0:51ac1d130fd4 2154 ip_addr_t multi_addr;
mbed_official 0:51ac1d130fd4 2155 inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
mbed_official 0:51ac1d130fd4 2156 inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
mbed_official 0:51ac1d130fd4 2157 if(optname == IP_ADD_MEMBERSHIP){
mbed_official 0:51ac1d130fd4 2158 data->err = igmp_joingroup(&if_addr, &multi_addr);
mbed_official 0:51ac1d130fd4 2159 } else {
mbed_official 0:51ac1d130fd4 2160 data->err = igmp_leavegroup(&if_addr, &multi_addr);
mbed_official 0:51ac1d130fd4 2161 }
mbed_official 0:51ac1d130fd4 2162 if(data->err != ERR_OK) {
mbed_official 0:51ac1d130fd4 2163 data->err = EADDRNOTAVAIL;
mbed_official 0:51ac1d130fd4 2164 }
mbed_official 0:51ac1d130fd4 2165 }
mbed_official 0:51ac1d130fd4 2166 break;
mbed_official 0:51ac1d130fd4 2167 #endif /* LWIP_IGMP */
mbed_official 0:51ac1d130fd4 2168 default:
mbed_official 0:51ac1d130fd4 2169 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 2170 break;
mbed_official 0:51ac1d130fd4 2171 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 2172 break;
mbed_official 0:51ac1d130fd4 2173
mbed_official 0:51ac1d130fd4 2174 #if LWIP_TCP
mbed_official 0:51ac1d130fd4 2175 /* Level: IPPROTO_TCP */
mbed_official 0:51ac1d130fd4 2176 case IPPROTO_TCP:
mbed_official 0:51ac1d130fd4 2177 switch (optname) {
mbed_official 0:51ac1d130fd4 2178 case TCP_NODELAY:
mbed_official 0:51ac1d130fd4 2179 if (*(int*)optval) {
mbed_official 0:51ac1d130fd4 2180 tcp_nagle_disable(sock->conn->pcb.tcp);
mbed_official 0:51ac1d130fd4 2181 } else {
mbed_official 0:51ac1d130fd4 2182 tcp_nagle_enable(sock->conn->pcb.tcp);
mbed_official 0:51ac1d130fd4 2183 }
mbed_official 0:51ac1d130fd4 2184 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
mbed_official 0:51ac1d130fd4 2185 s, (*(int *)optval)?"on":"off") );
mbed_official 0:51ac1d130fd4 2186 break;
mbed_official 0:51ac1d130fd4 2187 case TCP_KEEPALIVE:
mbed_official 0:51ac1d130fd4 2188 sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2189 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
mbed_official 0:51ac1d130fd4 2190 s, sock->conn->pcb.tcp->keep_idle));
mbed_official 0:51ac1d130fd4 2191 break;
mbed_official 0:51ac1d130fd4 2192
mbed_official 0:51ac1d130fd4 2193 #if LWIP_TCP_KEEPALIVE
mbed_official 0:51ac1d130fd4 2194 case TCP_KEEPIDLE:
mbed_official 0:51ac1d130fd4 2195 sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2196 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
mbed_official 0:51ac1d130fd4 2197 s, sock->conn->pcb.tcp->keep_idle));
mbed_official 0:51ac1d130fd4 2198 break;
mbed_official 0:51ac1d130fd4 2199 case TCP_KEEPINTVL:
mbed_official 0:51ac1d130fd4 2200 sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2201 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
mbed_official 0:51ac1d130fd4 2202 s, sock->conn->pcb.tcp->keep_intvl));
mbed_official 0:51ac1d130fd4 2203 break;
mbed_official 0:51ac1d130fd4 2204 case TCP_KEEPCNT:
mbed_official 0:51ac1d130fd4 2205 sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
mbed_official 0:51ac1d130fd4 2206 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
mbed_official 0:51ac1d130fd4 2207 s, sock->conn->pcb.tcp->keep_cnt));
mbed_official 0:51ac1d130fd4 2208 break;
mbed_official 0:51ac1d130fd4 2209 #endif /* LWIP_TCP_KEEPALIVE */
mbed_official 0:51ac1d130fd4 2210 default:
mbed_official 0:51ac1d130fd4 2211 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 2212 break;
mbed_official 0:51ac1d130fd4 2213 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 2214 break;
mbed_official 0:51ac1d130fd4 2215 #endif /* LWIP_TCP*/
mbed_official 0:51ac1d130fd4 2216 #if LWIP_UDP && LWIP_UDPLITE
mbed_official 0:51ac1d130fd4 2217 /* Level: IPPROTO_UDPLITE */
mbed_official 0:51ac1d130fd4 2218 case IPPROTO_UDPLITE:
mbed_official 0:51ac1d130fd4 2219 switch (optname) {
mbed_official 0:51ac1d130fd4 2220 case UDPLITE_SEND_CSCOV:
mbed_official 0:51ac1d130fd4 2221 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
mbed_official 0:51ac1d130fd4 2222 /* don't allow illegal values! */
mbed_official 0:51ac1d130fd4 2223 sock->conn->pcb.udp->chksum_len_tx = 8;
mbed_official 0:51ac1d130fd4 2224 } else {
mbed_official 0:51ac1d130fd4 2225 sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
mbed_official 0:51ac1d130fd4 2226 }
mbed_official 0:51ac1d130fd4 2227 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
mbed_official 0:51ac1d130fd4 2228 s, (*(int*)optval)) );
mbed_official 0:51ac1d130fd4 2229 break;
mbed_official 0:51ac1d130fd4 2230 case UDPLITE_RECV_CSCOV:
mbed_official 0:51ac1d130fd4 2231 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
mbed_official 0:51ac1d130fd4 2232 /* don't allow illegal values! */
mbed_official 0:51ac1d130fd4 2233 sock->conn->pcb.udp->chksum_len_rx = 8;
mbed_official 0:51ac1d130fd4 2234 } else {
mbed_official 0:51ac1d130fd4 2235 sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
mbed_official 0:51ac1d130fd4 2236 }
mbed_official 0:51ac1d130fd4 2237 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
mbed_official 0:51ac1d130fd4 2238 s, (*(int*)optval)) );
mbed_official 0:51ac1d130fd4 2239 break;
mbed_official 0:51ac1d130fd4 2240 default:
mbed_official 0:51ac1d130fd4 2241 LWIP_ASSERT("unhandled optname", 0);
mbed_official 0:51ac1d130fd4 2242 break;
mbed_official 0:51ac1d130fd4 2243 } /* switch (optname) */
mbed_official 0:51ac1d130fd4 2244 break;
mbed_official 0:51ac1d130fd4 2245 #endif /* LWIP_UDP */
mbed_official 0:51ac1d130fd4 2246 default:
mbed_official 0:51ac1d130fd4 2247 LWIP_ASSERT("unhandled level", 0);
mbed_official 0:51ac1d130fd4 2248 break;
mbed_official 0:51ac1d130fd4 2249 } /* switch (level) */
mbed_official 0:51ac1d130fd4 2250 sys_sem_signal(&sock->conn->op_completed);
mbed_official 0:51ac1d130fd4 2251 }
mbed_official 0:51ac1d130fd4 2252
mbed_official 0:51ac1d130fd4 2253 int
mbed_official 0:51ac1d130fd4 2254 lwip_ioctl(int s, long cmd, void *argp)
mbed_official 0:51ac1d130fd4 2255 {
mbed_official 0:51ac1d130fd4 2256 struct lwip_sock *sock = get_socket(s);
mbed_official 0:51ac1d130fd4 2257 u8_t val;
mbed_official 0:51ac1d130fd4 2258 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 2259 u16_t buflen = 0;
mbed_official 0:51ac1d130fd4 2260 s16_t recv_avail;
mbed_official 0:51ac1d130fd4 2261 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 2262
mbed_official 0:51ac1d130fd4 2263 if (!sock) {
mbed_official 0:51ac1d130fd4 2264 return -1;
mbed_official 0:51ac1d130fd4 2265 }
mbed_official 0:51ac1d130fd4 2266
mbed_official 0:51ac1d130fd4 2267 switch (cmd) {
mbed_official 0:51ac1d130fd4 2268 #if LWIP_SO_RCVBUF
mbed_official 0:51ac1d130fd4 2269 case FIONREAD:
mbed_official 0:51ac1d130fd4 2270 if (!argp) {
mbed_official 0:51ac1d130fd4 2271 sock_set_errno(sock, EINVAL);
mbed_official 0:51ac1d130fd4 2272 return -1;
mbed_official 0:51ac1d130fd4 2273 }
mbed_official 0:51ac1d130fd4 2274
mbed_official 0:51ac1d130fd4 2275 SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
mbed_official 0:51ac1d130fd4 2276 if (recv_avail < 0) {
mbed_official 0:51ac1d130fd4 2277 recv_avail = 0;
mbed_official 0:51ac1d130fd4 2278 }
mbed_official 0:51ac1d130fd4 2279 *((u16_t*)argp) = (u16_t)recv_avail;
mbed_official 0:51ac1d130fd4 2280
mbed_official 0:51ac1d130fd4 2281 /* Check if there is data left from the last recv operation. /maq 041215 */
mbed_official 0:51ac1d130fd4 2282 if (sock->lastdata) {
mbed_official 0:51ac1d130fd4 2283 struct pbuf *p = (struct pbuf *)sock->lastdata;
mbed_official 0:51ac1d130fd4 2284 if (netconn_type(sock->conn) != NETCONN_TCP) {
mbed_official 0:51ac1d130fd4 2285 p = ((struct netbuf *)p)->p;
mbed_official 0:51ac1d130fd4 2286 }
mbed_official 0:51ac1d130fd4 2287 buflen = p->tot_len;
mbed_official 0:51ac1d130fd4 2288 buflen -= sock->lastoffset;
mbed_official 0:51ac1d130fd4 2289
mbed_official 0:51ac1d130fd4 2290 *((u16_t*)argp) += buflen;
mbed_official 0:51ac1d130fd4 2291 }
mbed_official 0:51ac1d130fd4 2292
mbed_official 0:51ac1d130fd4 2293 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
mbed_official 0:51ac1d130fd4 2294 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 2295 return 0;
mbed_official 0:51ac1d130fd4 2296 #endif /* LWIP_SO_RCVBUF */
mbed_official 0:51ac1d130fd4 2297
mbed_official 0:51ac1d130fd4 2298 case FIONBIO:
mbed_official 0:51ac1d130fd4 2299 val = 0;
mbed_official 0:51ac1d130fd4 2300 if (argp && *(u32_t*)argp) {
mbed_official 0:51ac1d130fd4 2301 val = 1;
mbed_official 0:51ac1d130fd4 2302 }
mbed_official 0:51ac1d130fd4 2303 netconn_set_nonblocking(sock->conn, val);
mbed_official 0:51ac1d130fd4 2304 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
mbed_official 0:51ac1d130fd4 2305 sock_set_errno(sock, 0);
mbed_official 0:51ac1d130fd4 2306 return 0;
mbed_official 0:51ac1d130fd4 2307
mbed_official 0:51ac1d130fd4 2308 default:
mbed_official 0:51ac1d130fd4 2309 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
mbed_official 0:51ac1d130fd4 2310 sock_set_errno(sock, ENOSYS); /* not yet implemented */
mbed_official 0:51ac1d130fd4 2311 return -1;
mbed_official 0:51ac1d130fd4 2312 } /* switch (cmd) */
mbed_official 0:51ac1d130fd4 2313 }
mbed_official 0:51ac1d130fd4 2314
mbed_official 0:51ac1d130fd4 2315 /** A minimal implementation of fcntl.
mbed_official 0:51ac1d130fd4 2316 * Currently only the commands F_GETFL and F_SETFL are implemented.
mbed_official 0:51ac1d130fd4 2317 * Only the flag O_NONBLOCK is implemented.
mbed_official 0:51ac1d130fd4 2318 */
mbed_official 0:51ac1d130fd4 2319 int
mbed_official 0:51ac1d130fd4 2320 lwip_fcntl(int s, int cmd, int val)
mbed_official 0:51ac1d130fd4 2321 {
mbed_official 0:51ac1d130fd4 2322 struct lwip_sock *sock = get_socket(s);
mbed_official 0:51ac1d130fd4 2323 int ret = -1;
mbed_official 0:51ac1d130fd4 2324
mbed_official 0:51ac1d130fd4 2325 if (!sock || !sock->conn) {
mbed_official 0:51ac1d130fd4 2326 return -1;
mbed_official 0:51ac1d130fd4 2327 }
mbed_official 0:51ac1d130fd4 2328
mbed_official 0:51ac1d130fd4 2329 switch (cmd) {
mbed_official 0:51ac1d130fd4 2330 case F_GETFL:
mbed_official 0:51ac1d130fd4 2331 ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
mbed_official 0:51ac1d130fd4 2332 break;
mbed_official 0:51ac1d130fd4 2333 case F_SETFL:
mbed_official 0:51ac1d130fd4 2334 if ((val & ~O_NONBLOCK) == 0) {
mbed_official 0:51ac1d130fd4 2335 /* only O_NONBLOCK, all other bits are zero */
mbed_official 0:51ac1d130fd4 2336 netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
mbed_official 0:51ac1d130fd4 2337 ret = 0;
mbed_official 0:51ac1d130fd4 2338 }
mbed_official 0:51ac1d130fd4 2339 break;
mbed_official 0:51ac1d130fd4 2340 default:
mbed_official 0:51ac1d130fd4 2341 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
mbed_official 0:51ac1d130fd4 2342 break;
mbed_official 0:51ac1d130fd4 2343 }
mbed_official 0:51ac1d130fd4 2344 return ret;
mbed_official 0:51ac1d130fd4 2345 }
mbed_official 0:51ac1d130fd4 2346
mbed_official 0:51ac1d130fd4 2347 #endif /* LWIP_SOCKET */