Pascal Nysten / lwip

Adapted to Lora Semtech + Nucleo

Dependencies:   DebugLib

Dependents:   LoRaWAN-lmic-app LoRaWAN-lmic-app LoRaWAN-test-10secs LoRaPersonalizedDeviceForEverynet ... more

Fork of lwip_ppp_ethernet by Donatien Garnier

src/api/sockets.c@3:a9e6ba815945, 2015-11-20 (annotated)

Committer:
pnysten
Date:
Fri Nov 20 12:30:58 2015 +0000
Revision:
3:a9e6ba815945
Parent:
0:8e01dca41002 
Adapted to Nucleo, LoRa Semtech

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:8e01dca41002 1 /**
donatien 0:8e01dca41002 2 * @file
donatien 0:8e01dca41002 3 * Sockets BSD-Like API module
donatien 0:8e01dca41002 4 *
donatien 0:8e01dca41002 5 */
donatien 0:8e01dca41002 6
donatien 0:8e01dca41002 7 /*
donatien 0:8e01dca41002 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
donatien 0:8e01dca41002 9 * All rights reserved.
donatien 0:8e01dca41002 10 *
donatien 0:8e01dca41002 11 * Redistribution and use in source and binary forms, with or without modification,
donatien 0:8e01dca41002 12 * are permitted provided that the following conditions are met:
donatien 0:8e01dca41002 13 *
donatien 0:8e01dca41002 14 * 1. Redistributions of source code must retain the above copyright notice,
donatien 0:8e01dca41002 15 * this list of conditions and the following disclaimer.
donatien 0:8e01dca41002 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
donatien 0:8e01dca41002 17 * this list of conditions and the following disclaimer in the documentation
donatien 0:8e01dca41002 18 * and/or other materials provided with the distribution.
donatien 0:8e01dca41002 19 * 3. The name of the author may not be used to endorse or promote products
donatien 0:8e01dca41002 20 * derived from this software without specific prior written permission.
donatien 0:8e01dca41002 21 *
donatien 0:8e01dca41002 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
donatien 0:8e01dca41002 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
donatien 0:8e01dca41002 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
donatien 0:8e01dca41002 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
donatien 0:8e01dca41002 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
donatien 0:8e01dca41002 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
donatien 0:8e01dca41002 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
donatien 0:8e01dca41002 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
donatien 0:8e01dca41002 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
donatien 0:8e01dca41002 31 * OF SUCH DAMAGE.
donatien 0:8e01dca41002 32 *
donatien 0:8e01dca41002 33 * This file is part of the lwIP TCP/IP stack.
donatien 0:8e01dca41002 34 *
donatien 0:8e01dca41002 35 * Author: Adam Dunkels <adam@sics.se>
donatien 0:8e01dca41002 36 *
donatien 0:8e01dca41002 37 * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
donatien 0:8e01dca41002 38 *
donatien 0:8e01dca41002 39 */
donatien 0:8e01dca41002 40
donatien 0:8e01dca41002 41 #include "lwip/opt.h"
donatien 0:8e01dca41002 42
donatien 0:8e01dca41002 43 #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
donatien 0:8e01dca41002 44
donatien 0:8e01dca41002 45 #include "lwip/sockets.h"
donatien 0:8e01dca41002 46 #include "lwip/api.h"
donatien 0:8e01dca41002 47 #include "lwip/sys.h"
donatien 0:8e01dca41002 48 #include "lwip/igmp.h"
donatien 0:8e01dca41002 49 #include "lwip/inet.h"
donatien 0:8e01dca41002 50 #include "lwip/tcp.h"
donatien 0:8e01dca41002 51 #include "lwip/raw.h"
donatien 0:8e01dca41002 52 #include "lwip/udp.h"
donatien 0:8e01dca41002 53 #include "lwip/tcpip.h"
donatien 0:8e01dca41002 54 #include "lwip/pbuf.h"
donatien 0:8e01dca41002 55 #if LWIP_CHECKSUM_ON_COPY
donatien 0:8e01dca41002 56 #include "lwip/inet_chksum.h"
donatien 0:8e01dca41002 57 #endif
donatien 0:8e01dca41002 58
donatien 0:8e01dca41002 59 #include <string.h>
donatien 0:8e01dca41002 60
donatien 0:8e01dca41002 61 #define NUM_SOCKETS MEMP_NUM_NETCONN
donatien 0:8e01dca41002 62
donatien 0:8e01dca41002 63 /** Contains all internal pointers and states used for a socket */
donatien 0:8e01dca41002 64 struct lwip_sock {
donatien 0:8e01dca41002 65 /** sockets currently are built on netconns, each socket has one netconn */
donatien 0:8e01dca41002 66 struct netconn *conn;
donatien 0:8e01dca41002 67 /** data that was left from the previous read */
donatien 0:8e01dca41002 68 void *lastdata;
donatien 0:8e01dca41002 69 /** offset in the data that was left from the previous read */
donatien 0:8e01dca41002 70 u16_t lastoffset;
donatien 0:8e01dca41002 71 /** number of times data was received, set by event_callback(),
donatien 0:8e01dca41002 72 tested by the receive and select functions */
donatien 0:8e01dca41002 73 s16_t rcvevent;
donatien 0:8e01dca41002 74 /** number of times data was ACKed (free send buffer), set by event_callback(),
donatien 0:8e01dca41002 75 tested by select */
donatien 0:8e01dca41002 76 u16_t sendevent;
donatien 0:8e01dca41002 77 /** error happened for this socket, set by event_callback(), tested by select */
donatien 0:8e01dca41002 78 u16_t errevent;
donatien 0:8e01dca41002 79 /** last error that occurred on this socket */
donatien 0:8e01dca41002 80 int err;
donatien 0:8e01dca41002 81 /** counter of how many threads are waiting for this socket using select */
donatien 0:8e01dca41002 82 int select_waiting;
donatien 0:8e01dca41002 83 };
donatien 0:8e01dca41002 84
donatien 0:8e01dca41002 85 /** Description for a task waiting in select */
donatien 0:8e01dca41002 86 struct lwip_select_cb {
donatien 0:8e01dca41002 87 /** Pointer to the next waiting task */
donatien 0:8e01dca41002 88 struct lwip_select_cb *next;
donatien 0:8e01dca41002 89 /** Pointer to the previous waiting task */
donatien 0:8e01dca41002 90 struct lwip_select_cb *prev;
donatien 0:8e01dca41002 91 /** readset passed to select */
donatien 0:8e01dca41002 92 fd_set *readset;
donatien 0:8e01dca41002 93 /** writeset passed to select */
donatien 0:8e01dca41002 94 fd_set *writeset;
donatien 0:8e01dca41002 95 /** unimplemented: exceptset passed to select */
donatien 0:8e01dca41002 96 fd_set *exceptset;
donatien 0:8e01dca41002 97 /** don't signal the same semaphore twice: set to 1 when signalled */
donatien 0:8e01dca41002 98 int sem_signalled;
donatien 0:8e01dca41002 99 /** semaphore to wake up a task waiting for select */
donatien 0:8e01dca41002 100 sys_sem_t sem;
donatien 0:8e01dca41002 101 };
donatien 0:8e01dca41002 102
donatien 0:8e01dca41002 103 /** This struct is used to pass data to the set/getsockopt_internal
donatien 0:8e01dca41002 104 * functions running in tcpip_thread context (only a void* is allowed) */
donatien 0:8e01dca41002 105 struct lwip_setgetsockopt_data {
donatien 0:8e01dca41002 106 /** socket struct for which to change options */
donatien 0:8e01dca41002 107 struct lwip_sock *sock;
donatien 0:8e01dca41002 108 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 109 /** socket index for which to change options */
donatien 0:8e01dca41002 110 int s;
donatien 0:8e01dca41002 111 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 112 /** level of the option to process */
donatien 0:8e01dca41002 113 int level;
donatien 0:8e01dca41002 114 /** name of the option to process */
donatien 0:8e01dca41002 115 int optname;
donatien 0:8e01dca41002 116 /** set: value to set the option to
donatien 0:8e01dca41002 117 * get: value of the option is stored here */
donatien 0:8e01dca41002 118 void *optval;
donatien 0:8e01dca41002 119 /** size of *optval */
donatien 0:8e01dca41002 120 socklen_t *optlen;
donatien 0:8e01dca41002 121 /** if an error occures, it is temporarily stored here */
donatien 0:8e01dca41002 122 err_t err;
donatien 0:8e01dca41002 123 };
donatien 0:8e01dca41002 124
donatien 0:8e01dca41002 125 /** The global array of available sockets */
donatien 0:8e01dca41002 126 static struct lwip_sock sockets[NUM_SOCKETS];
donatien 0:8e01dca41002 127 /** The global list of tasks waiting for select */
donatien 0:8e01dca41002 128 static struct lwip_select_cb *select_cb_list;
donatien 0:8e01dca41002 129 /** This counter is increased from lwip_select when the list is chagned
donatien 0:8e01dca41002 130 and checked in event_callback to see if it has changed. */
donatien 0:8e01dca41002 131 static volatile int select_cb_ctr;
donatien 0:8e01dca41002 132
donatien 0:8e01dca41002 133 /** Table to quickly map an lwIP error (err_t) to a socket error
donatien 0:8e01dca41002 134 * by using -err as an index */
donatien 0:8e01dca41002 135 static const int err_to_errno_table[] = {
donatien 0:8e01dca41002 136 0, /* ERR_OK 0 No error, everything OK. */
donatien 0:8e01dca41002 137 ENOMEM, /* ERR_MEM -1 Out of memory error. */
donatien 0:8e01dca41002 138 ENOBUFS, /* ERR_BUF -2 Buffer error. */
donatien 0:8e01dca41002 139 EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
donatien 0:8e01dca41002 140 EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
donatien 0:8e01dca41002 141 EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
donatien 0:8e01dca41002 142 EINVAL, /* ERR_VAL -6 Illegal value. */
donatien 0:8e01dca41002 143 EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
donatien 0:8e01dca41002 144 EADDRINUSE, /* ERR_USE -8 Address in use. */
donatien 0:8e01dca41002 145 EALREADY, /* ERR_ISCONN -9 Already connected. */
donatien 0:8e01dca41002 146 ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
donatien 0:8e01dca41002 147 ECONNRESET, /* ERR_RST -11 Connection reset. */
donatien 0:8e01dca41002 148 ENOTCONN, /* ERR_CLSD -12 Connection closed. */
donatien 0:8e01dca41002 149 ENOTCONN, /* ERR_CONN -13 Not connected. */
donatien 0:8e01dca41002 150 EIO, /* ERR_ARG -14 Illegal argument. */
donatien 0:8e01dca41002 151 -1, /* ERR_IF -15 Low-level netif error */
donatien 0:8e01dca41002 152 };
donatien 0:8e01dca41002 153
donatien 0:8e01dca41002 154 #define ERR_TO_ERRNO_TABLE_SIZE \
donatien 0:8e01dca41002 155 (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
donatien 0:8e01dca41002 156
donatien 0:8e01dca41002 157 #define err_to_errno(err) \
donatien 0:8e01dca41002 158 ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
donatien 0:8e01dca41002 159 err_to_errno_table[-(err)] : EIO)
donatien 0:8e01dca41002 160
donatien 0:8e01dca41002 161 #ifdef ERRNO
donatien 0:8e01dca41002 162 #ifndef set_errno
donatien 0:8e01dca41002 163 #define set_errno(err) errno = (err)
donatien 0:8e01dca41002 164 #endif
donatien 0:8e01dca41002 165 #else /* ERRNO */
donatien 0:8e01dca41002 166 #define set_errno(err)
donatien 0:8e01dca41002 167 #endif /* ERRNO */
donatien 0:8e01dca41002 168
donatien 0:8e01dca41002 169 #define sock_set_errno(sk, e) do { \
donatien 0:8e01dca41002 170 sk->err = (e); \
donatien 0:8e01dca41002 171 set_errno(sk->err); \
donatien 0:8e01dca41002 172 } while (0)
donatien 0:8e01dca41002 173
donatien 0:8e01dca41002 174 /* Forward delcaration of some functions */
donatien 0:8e01dca41002 175 static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
donatien 0:8e01dca41002 176 static void lwip_getsockopt_internal(void *arg);
donatien 0:8e01dca41002 177 static void lwip_setsockopt_internal(void *arg);
donatien 0:8e01dca41002 178
donatien 0:8e01dca41002 179 /**
donatien 0:8e01dca41002 180 * Initialize this module. This function has to be called before any other
donatien 0:8e01dca41002 181 * functions in this module!
donatien 0:8e01dca41002 182 */
donatien 0:8e01dca41002 183 void
donatien 0:8e01dca41002 184 lwip_socket_init(void)
donatien 0:8e01dca41002 185 {
donatien 0:8e01dca41002 186 }
donatien 0:8e01dca41002 187
donatien 0:8e01dca41002 188 /**
donatien 0:8e01dca41002 189 * Map a externally used socket index to the internal socket representation.
donatien 0:8e01dca41002 190 *
donatien 0:8e01dca41002 191 * @param s externally used socket index
donatien 0:8e01dca41002 192 * @return struct lwip_sock for the socket or NULL if not found
donatien 0:8e01dca41002 193 */
donatien 0:8e01dca41002 194 static struct lwip_sock *
donatien 0:8e01dca41002 195 get_socket(int s)
donatien 0:8e01dca41002 196 {
donatien 0:8e01dca41002 197 struct lwip_sock *sock;
donatien 0:8e01dca41002 198
donatien 0:8e01dca41002 199 if ((s < 0) || (s >= NUM_SOCKETS)) {
donatien 0:8e01dca41002 200 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
donatien 0:8e01dca41002 201 set_errno(EBADF);
donatien 0:8e01dca41002 202 return NULL;
donatien 0:8e01dca41002 203 }
donatien 0:8e01dca41002 204
donatien 0:8e01dca41002 205 sock = &sockets[s];
donatien 0:8e01dca41002 206
donatien 0:8e01dca41002 207 if (!sock->conn) {
donatien 0:8e01dca41002 208 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
donatien 0:8e01dca41002 209 set_errno(EBADF);
donatien 0:8e01dca41002 210 return NULL;
donatien 0:8e01dca41002 211 }
donatien 0:8e01dca41002 212
donatien 0:8e01dca41002 213 return sock;
donatien 0:8e01dca41002 214 }
donatien 0:8e01dca41002 215
donatien 0:8e01dca41002 216 /**
donatien 0:8e01dca41002 217 * Same as get_socket but doesn't set errno
donatien 0:8e01dca41002 218 *
donatien 0:8e01dca41002 219 * @param s externally used socket index
donatien 0:8e01dca41002 220 * @return struct lwip_sock for the socket or NULL if not found
donatien 0:8e01dca41002 221 */
donatien 0:8e01dca41002 222 static struct lwip_sock *
donatien 0:8e01dca41002 223 tryget_socket(int s)
donatien 0:8e01dca41002 224 {
donatien 0:8e01dca41002 225 if ((s < 0) || (s >= NUM_SOCKETS)) {
donatien 0:8e01dca41002 226 return NULL;
donatien 0:8e01dca41002 227 }
donatien 0:8e01dca41002 228 if (!sockets[s].conn) {
donatien 0:8e01dca41002 229 return NULL;
donatien 0:8e01dca41002 230 }
donatien 0:8e01dca41002 231 return &sockets[s];
donatien 0:8e01dca41002 232 }
donatien 0:8e01dca41002 233
donatien 0:8e01dca41002 234 /**
donatien 0:8e01dca41002 235 * Allocate a new socket for a given netconn.
donatien 0:8e01dca41002 236 *
donatien 0:8e01dca41002 237 * @param newconn the netconn for which to allocate a socket
donatien 0:8e01dca41002 238 * @param accepted 1 if socket has been created by accept(),
donatien 0:8e01dca41002 239 * 0 if socket has been created by socket()
donatien 0:8e01dca41002 240 * @return the index of the new socket; -1 on error
donatien 0:8e01dca41002 241 */
donatien 0:8e01dca41002 242 static int
donatien 0:8e01dca41002 243 alloc_socket(struct netconn *newconn, int accepted)
donatien 0:8e01dca41002 244 {
donatien 0:8e01dca41002 245 int i;
donatien 0:8e01dca41002 246 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 247
donatien 0:8e01dca41002 248 /* allocate a new socket identifier */
donatien 0:8e01dca41002 249 for (i = 0; i < NUM_SOCKETS; ++i) {
donatien 0:8e01dca41002 250 /* Protect socket array */
donatien 0:8e01dca41002 251 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 252 if (!sockets[i].conn) {
donatien 0:8e01dca41002 253 sockets[i].conn = newconn;
donatien 0:8e01dca41002 254 /* The socket is not yet known to anyone, so no need to protect
donatien 0:8e01dca41002 255 after having marked it as used. */
donatien 0:8e01dca41002 256 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 257 sockets[i].lastdata = NULL;
donatien 0:8e01dca41002 258 sockets[i].lastoffset = 0;
donatien 0:8e01dca41002 259 sockets[i].rcvevent = 0;
donatien 0:8e01dca41002 260 /* TCP sendbuf is empty, but the socket is not yet writable until connected
donatien 0:8e01dca41002 261 * (unless it has been created by accept()). */
donatien 0:8e01dca41002 262 sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
donatien 0:8e01dca41002 263 sockets[i].errevent = 0;
donatien 0:8e01dca41002 264 sockets[i].err = 0;
donatien 0:8e01dca41002 265 sockets[i].select_waiting = 0;
donatien 0:8e01dca41002 266 return i;
donatien 0:8e01dca41002 267 }
donatien 0:8e01dca41002 268 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 269 }
donatien 0:8e01dca41002 270 return -1;
donatien 0:8e01dca41002 271 }
donatien 0:8e01dca41002 272
donatien 0:8e01dca41002 273 /** Free a socket. The socket's netconn must have been
donatien 0:8e01dca41002 274 * delete before!
donatien 0:8e01dca41002 275 *
donatien 0:8e01dca41002 276 * @param sock the socket to free
donatien 0:8e01dca41002 277 * @param is_tcp != 0 for TCP sockets, used to free lastdata
donatien 0:8e01dca41002 278 */
donatien 0:8e01dca41002 279 static void
donatien 0:8e01dca41002 280 free_socket(struct lwip_sock *sock, int is_tcp)
donatien 0:8e01dca41002 281 {
donatien 0:8e01dca41002 282 void *lastdata;
donatien 0:8e01dca41002 283 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 284
donatien 0:8e01dca41002 285 lastdata = sock->lastdata;
donatien 0:8e01dca41002 286 sock->lastdata = NULL;
donatien 0:8e01dca41002 287 sock->lastoffset = 0;
donatien 0:8e01dca41002 288 sock->err = 0;
donatien 0:8e01dca41002 289
donatien 0:8e01dca41002 290 /* Protect socket array */
donatien 0:8e01dca41002 291 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 292 sock->conn = NULL;
donatien 0:8e01dca41002 293 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 294 /* don't use 'sock' after this line, as another task might have allocated it */
donatien 0:8e01dca41002 295
donatien 0:8e01dca41002 296 if (lastdata != NULL) {
donatien 0:8e01dca41002 297 if (is_tcp) {
donatien 0:8e01dca41002 298 pbuf_free((struct pbuf *)lastdata);
donatien 0:8e01dca41002 299 } else {
donatien 0:8e01dca41002 300 netbuf_delete((struct netbuf *)lastdata);
donatien 0:8e01dca41002 301 }
donatien 0:8e01dca41002 302 }
donatien 0:8e01dca41002 303 }
donatien 0:8e01dca41002 304
donatien 0:8e01dca41002 305 /* Below this, the well-known socket functions are implemented.
donatien 0:8e01dca41002 306 * Use google.com or opengroup.org to get a good description :-)
donatien 0:8e01dca41002 307 *
donatien 0:8e01dca41002 308 * Exceptions are documented!
donatien 0:8e01dca41002 309 */
donatien 0:8e01dca41002 310
donatien 0:8e01dca41002 311 int
donatien 0:8e01dca41002 312 lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
donatien 0:8e01dca41002 313 {
donatien 0:8e01dca41002 314 struct lwip_sock *sock, *nsock;
donatien 0:8e01dca41002 315 struct netconn *newconn;
donatien 0:8e01dca41002 316 ip_addr_t naddr;
donatien 0:8e01dca41002 317 u16_t port;
donatien 0:8e01dca41002 318 int newsock;
donatien 0:8e01dca41002 319 struct sockaddr_in sin;
donatien 0:8e01dca41002 320 err_t err;
donatien 0:8e01dca41002 321 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 322
donatien 0:8e01dca41002 323 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
donatien 0:8e01dca41002 324 sock = get_socket(s);
donatien 0:8e01dca41002 325 if (!sock) {
donatien 0:8e01dca41002 326 return -1;
donatien 0:8e01dca41002 327 }
donatien 0:8e01dca41002 328
donatien 0:8e01dca41002 329 if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
donatien 0:8e01dca41002 330 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
donatien 0:8e01dca41002 331 sock_set_errno(sock, EWOULDBLOCK);
donatien 0:8e01dca41002 332 return -1;
donatien 0:8e01dca41002 333 }
donatien 0:8e01dca41002 334
donatien 0:8e01dca41002 335 /* wait for a new connection */
donatien 0:8e01dca41002 336 err = netconn_accept(sock->conn, &newconn);
donatien 0:8e01dca41002 337 if (err != ERR_OK) {
donatien 0:8e01dca41002 338 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
donatien 0:8e01dca41002 339 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 340 return -1;
donatien 0:8e01dca41002 341 }
donatien 0:8e01dca41002 342 LWIP_ASSERT("newconn != NULL", newconn != NULL);
donatien 0:8e01dca41002 343 /* Prevent automatic window updates, we do this on our own! */
donatien 0:8e01dca41002 344 netconn_set_noautorecved(newconn, 1);
donatien 0:8e01dca41002 345
donatien 0:8e01dca41002 346 /* get the IP address and port of the remote host */
donatien 0:8e01dca41002 347 err = netconn_peer(newconn, &naddr, &port);
donatien 0:8e01dca41002 348 if (err != ERR_OK) {
donatien 0:8e01dca41002 349 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
donatien 0:8e01dca41002 350 netconn_delete(newconn);
donatien 0:8e01dca41002 351 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 352 return -1;
donatien 0:8e01dca41002 353 }
donatien 0:8e01dca41002 354
donatien 0:8e01dca41002 355 /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
donatien 0:8e01dca41002 356 * not be NULL if addr is valid.
donatien 0:8e01dca41002 357 */
donatien 0:8e01dca41002 358 if (NULL != addr) {
donatien 0:8e01dca41002 359 LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
donatien 0:8e01dca41002 360 memset(&sin, 0, sizeof(sin));
donatien 0:8e01dca41002 361 sin.sin_len = sizeof(sin);
donatien 0:8e01dca41002 362 sin.sin_family = AF_INET;
donatien 0:8e01dca41002 363 sin.sin_port = htons(port);
donatien 0:8e01dca41002 364 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
donatien 0:8e01dca41002 365
donatien 0:8e01dca41002 366 if (*addrlen > sizeof(sin))
donatien 0:8e01dca41002 367 *addrlen = sizeof(sin);
donatien 0:8e01dca41002 368
donatien 0:8e01dca41002 369 MEMCPY(addr, &sin, *addrlen);
donatien 0:8e01dca41002 370 }
donatien 0:8e01dca41002 371
donatien 0:8e01dca41002 372 newsock = alloc_socket(newconn, 1);
donatien 0:8e01dca41002 373 if (newsock == -1) {
donatien 0:8e01dca41002 374 netconn_delete(newconn);
donatien 0:8e01dca41002 375 sock_set_errno(sock, ENFILE);
donatien 0:8e01dca41002 376 return -1;
donatien 0:8e01dca41002 377 }
donatien 0:8e01dca41002 378 LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
donatien 0:8e01dca41002 379 LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
donatien 0:8e01dca41002 380 nsock = &sockets[newsock];
donatien 0:8e01dca41002 381
donatien 0:8e01dca41002 382 /* See event_callback: If data comes in right away after an accept, even
donatien 0:8e01dca41002 383 * though the server task might not have created a new socket yet.
donatien 0:8e01dca41002 384 * In that case, newconn->socket is counted down (newconn->socket--),
donatien 0:8e01dca41002 385 * so nsock->rcvevent is >= 1 here!
donatien 0:8e01dca41002 386 */
donatien 0:8e01dca41002 387 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 388 nsock->rcvevent += (s16_t)(-1 - newconn->socket);
donatien 0:8e01dca41002 389 newconn->socket = newsock;
donatien 0:8e01dca41002 390 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 391
donatien 0:8e01dca41002 392 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
donatien 0:8e01dca41002 393 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
donatien 0:8e01dca41002 394 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
donatien 0:8e01dca41002 395
donatien 0:8e01dca41002 396 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 397 return newsock;
donatien 0:8e01dca41002 398 }
donatien 0:8e01dca41002 399
donatien 0:8e01dca41002 400 int
donatien 0:8e01dca41002 401 lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
donatien 0:8e01dca41002 402 {
donatien 0:8e01dca41002 403 struct lwip_sock *sock;
donatien 0:8e01dca41002 404 ip_addr_t local_addr;
donatien 0:8e01dca41002 405 u16_t local_port;
donatien 0:8e01dca41002 406 err_t err;
donatien 0:8e01dca41002 407 const struct sockaddr_in *name_in;
donatien 0:8e01dca41002 408
donatien 0:8e01dca41002 409 sock = get_socket(s);
donatien 0:8e01dca41002 410 if (!sock) {
donatien 0:8e01dca41002 411 return -1;
donatien 0:8e01dca41002 412 }
donatien 0:8e01dca41002 413
donatien 0:8e01dca41002 414 /* check size, familiy and alignment of 'name' */
donatien 0:8e01dca41002 415 LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
donatien 0:8e01dca41002 416 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
donatien 0:8e01dca41002 417 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
donatien 0:8e01dca41002 418 name_in = (const struct sockaddr_in *)(void*)name;
donatien 0:8e01dca41002 419
donatien 0:8e01dca41002 420 inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
donatien 0:8e01dca41002 421 local_port = name_in->sin_port;
donatien 0:8e01dca41002 422
donatien 0:8e01dca41002 423 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
donatien 0:8e01dca41002 424 ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
donatien 0:8e01dca41002 425 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
donatien 0:8e01dca41002 426
donatien 0:8e01dca41002 427 err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
donatien 0:8e01dca41002 428
donatien 0:8e01dca41002 429 if (err != ERR_OK) {
donatien 0:8e01dca41002 430 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
donatien 0:8e01dca41002 431 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 432 return -1;
donatien 0:8e01dca41002 433 }
donatien 0:8e01dca41002 434
donatien 0:8e01dca41002 435 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
donatien 0:8e01dca41002 436 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 437 return 0;
donatien 0:8e01dca41002 438 }
donatien 0:8e01dca41002 439
donatien 0:8e01dca41002 440 int
donatien 0:8e01dca41002 441 lwip_close(int s)
donatien 0:8e01dca41002 442 {
donatien 0:8e01dca41002 443 struct lwip_sock *sock;
donatien 0:8e01dca41002 444 int is_tcp = 0;
donatien 0:8e01dca41002 445
donatien 0:8e01dca41002 446 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
donatien 0:8e01dca41002 447
donatien 0:8e01dca41002 448 sock = get_socket(s);
donatien 0:8e01dca41002 449 if (!sock) {
donatien 0:8e01dca41002 450 return -1;
donatien 0:8e01dca41002 451 }
donatien 0:8e01dca41002 452
donatien 0:8e01dca41002 453 if(sock->conn != NULL) {
donatien 0:8e01dca41002 454 is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
donatien 0:8e01dca41002 455 } else {
donatien 0:8e01dca41002 456 LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
donatien 0:8e01dca41002 457 }
donatien 0:8e01dca41002 458
donatien 0:8e01dca41002 459 netconn_delete(sock->conn);
donatien 0:8e01dca41002 460
donatien 0:8e01dca41002 461 free_socket(sock, is_tcp);
donatien 0:8e01dca41002 462 set_errno(0);
donatien 0:8e01dca41002 463 return 0;
donatien 0:8e01dca41002 464 }
donatien 0:8e01dca41002 465
donatien 0:8e01dca41002 466 int
donatien 0:8e01dca41002 467 lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
donatien 0:8e01dca41002 468 {
donatien 0:8e01dca41002 469 struct lwip_sock *sock;
donatien 0:8e01dca41002 470 err_t err;
donatien 0:8e01dca41002 471 const struct sockaddr_in *name_in;
donatien 0:8e01dca41002 472
donatien 0:8e01dca41002 473 sock = get_socket(s);
donatien 0:8e01dca41002 474 if (!sock) {
donatien 0:8e01dca41002 475 return -1;
donatien 0:8e01dca41002 476 }
donatien 0:8e01dca41002 477
donatien 0:8e01dca41002 478 /* check size, familiy and alignment of 'name' */
donatien 0:8e01dca41002 479 LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
donatien 0:8e01dca41002 480 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
donatien 0:8e01dca41002 481 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
donatien 0:8e01dca41002 482 name_in = (const struct sockaddr_in *)(void*)name;
donatien 0:8e01dca41002 483
donatien 0:8e01dca41002 484 if (name_in->sin_family == AF_UNSPEC) {
donatien 0:8e01dca41002 485 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
donatien 0:8e01dca41002 486 err = netconn_disconnect(sock->conn);
donatien 0:8e01dca41002 487 } else {
donatien 0:8e01dca41002 488 ip_addr_t remote_addr;
donatien 0:8e01dca41002 489 u16_t remote_port;
donatien 0:8e01dca41002 490
donatien 0:8e01dca41002 491 inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
donatien 0:8e01dca41002 492 remote_port = name_in->sin_port;
donatien 0:8e01dca41002 493
donatien 0:8e01dca41002 494 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
donatien 0:8e01dca41002 495 ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
donatien 0:8e01dca41002 496 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
donatien 0:8e01dca41002 497
donatien 0:8e01dca41002 498 err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
donatien 0:8e01dca41002 499 }
donatien 0:8e01dca41002 500
donatien 0:8e01dca41002 501 if (err != ERR_OK) {
donatien 0:8e01dca41002 502 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
donatien 0:8e01dca41002 503 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 504 return -1;
donatien 0:8e01dca41002 505 }
donatien 0:8e01dca41002 506
donatien 0:8e01dca41002 507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
donatien 0:8e01dca41002 508 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 509 return 0;
donatien 0:8e01dca41002 510 }
donatien 0:8e01dca41002 511
donatien 0:8e01dca41002 512 /**
donatien 0:8e01dca41002 513 * Set a socket into listen mode.
donatien 0:8e01dca41002 514 * The socket may not have been used for another connection previously.
donatien 0:8e01dca41002 515 *
donatien 0:8e01dca41002 516 * @param s the socket to set to listening mode
donatien 0:8e01dca41002 517 * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
donatien 0:8e01dca41002 518 * @return 0 on success, non-zero on failure
donatien 0:8e01dca41002 519 */
donatien 0:8e01dca41002 520 int
donatien 0:8e01dca41002 521 lwip_listen(int s, int backlog)
donatien 0:8e01dca41002 522 {
donatien 0:8e01dca41002 523 struct lwip_sock *sock;
donatien 0:8e01dca41002 524 err_t err;
donatien 0:8e01dca41002 525
donatien 0:8e01dca41002 526 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
donatien 0:8e01dca41002 527
donatien 0:8e01dca41002 528 sock = get_socket(s);
donatien 0:8e01dca41002 529 if (!sock) {
donatien 0:8e01dca41002 530 return -1;
donatien 0:8e01dca41002 531 }
donatien 0:8e01dca41002 532
donatien 0:8e01dca41002 533 /* limit the "backlog" parameter to fit in an u8_t */
donatien 0:8e01dca41002 534 backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
donatien 0:8e01dca41002 535
donatien 0:8e01dca41002 536 err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
donatien 0:8e01dca41002 537
donatien 0:8e01dca41002 538 if (err != ERR_OK) {
donatien 0:8e01dca41002 539 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
donatien 0:8e01dca41002 540 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 541 return -1;
donatien 0:8e01dca41002 542 }
donatien 0:8e01dca41002 543
donatien 0:8e01dca41002 544 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 545 return 0;
donatien 0:8e01dca41002 546 }
donatien 0:8e01dca41002 547
donatien 0:8e01dca41002 548 int
donatien 0:8e01dca41002 549 lwip_recvfrom(int s, void *mem, size_t len, int flags,
donatien 0:8e01dca41002 550 struct sockaddr *from, socklen_t *fromlen)
donatien 0:8e01dca41002 551 {
donatien 0:8e01dca41002 552 struct lwip_sock *sock;
donatien 0:8e01dca41002 553 void *buf = NULL;
donatien 0:8e01dca41002 554 struct pbuf *p;
donatien 0:8e01dca41002 555 u16_t buflen, copylen;
donatien 0:8e01dca41002 556 int off = 0;
donatien 0:8e01dca41002 557 ip_addr_t *addr;
donatien 0:8e01dca41002 558 u16_t port;
donatien 0:8e01dca41002 559 u8_t done = 0;
donatien 0:8e01dca41002 560 err_t err;
donatien 0:8e01dca41002 561
donatien 0:8e01dca41002 562 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
donatien 0:8e01dca41002 563 sock = get_socket(s);
donatien 0:8e01dca41002 564 if (!sock) {
donatien 0:8e01dca41002 565 return -1;
donatien 0:8e01dca41002 566 }
donatien 0:8e01dca41002 567
donatien 0:8e01dca41002 568 do {
donatien 0:8e01dca41002 569 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
donatien 0:8e01dca41002 570 /* Check if there is data left from the last recv operation. */
donatien 0:8e01dca41002 571 if (sock->lastdata) {
donatien 0:8e01dca41002 572 buf = sock->lastdata;
donatien 0:8e01dca41002 573 } else {
donatien 0:8e01dca41002 574 /* If this is non-blocking call, then check first */
donatien 0:8e01dca41002 575 if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
donatien 0:8e01dca41002 576 (sock->rcvevent <= 0)) {
donatien 0:8e01dca41002 577 if (off > 0) {
donatien 0:8e01dca41002 578 /* update receive window */
donatien 0:8e01dca41002 579 netconn_recved(sock->conn, (u32_t)off);
donatien 0:8e01dca41002 580 /* already received data, return that */
donatien 0:8e01dca41002 581 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 582 return off;
donatien 0:8e01dca41002 583 }
donatien 0:8e01dca41002 584 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
donatien 0:8e01dca41002 585 sock_set_errno(sock, EWOULDBLOCK);
donatien 0:8e01dca41002 586 return -1;
donatien 0:8e01dca41002 587 }
donatien 0:8e01dca41002 588
donatien 0:8e01dca41002 589 /* No data was left from the previous operation, so we try to get
donatien 0:8e01dca41002 590 some from the network. */
donatien 0:8e01dca41002 591 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 592 err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
donatien 0:8e01dca41002 593 } else {
donatien 0:8e01dca41002 594 err = netconn_recv(sock->conn, (struct netbuf **)&buf);
donatien 0:8e01dca41002 595 }
donatien 0:8e01dca41002 596 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
donatien 0:8e01dca41002 597 err, buf));
donatien 0:8e01dca41002 598
donatien 0:8e01dca41002 599 if (err != ERR_OK) {
donatien 0:8e01dca41002 600 if (off > 0) {
donatien 0:8e01dca41002 601 /* update receive window */
donatien 0:8e01dca41002 602 netconn_recved(sock->conn, (u32_t)off);
donatien 0:8e01dca41002 603 /* already received data, return that */
donatien 0:8e01dca41002 604 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 605 return off;
donatien 0:8e01dca41002 606 }
donatien 0:8e01dca41002 607 /* We should really do some error checking here. */
donatien 0:8e01dca41002 608 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
donatien 0:8e01dca41002 609 s, lwip_strerr(err)));
donatien 0:8e01dca41002 610 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 611 if (err == ERR_CLSD) {
donatien 0:8e01dca41002 612 return 0;
donatien 0:8e01dca41002 613 } else {
donatien 0:8e01dca41002 614 return -1;
donatien 0:8e01dca41002 615 }
donatien 0:8e01dca41002 616 }
donatien 0:8e01dca41002 617 LWIP_ASSERT("buf != NULL", buf != NULL);
donatien 0:8e01dca41002 618 sock->lastdata = buf;
donatien 0:8e01dca41002 619 }
donatien 0:8e01dca41002 620
donatien 0:8e01dca41002 621 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 622 p = (struct pbuf *)buf;
donatien 0:8e01dca41002 623 } else {
donatien 0:8e01dca41002 624 p = ((struct netbuf *)buf)->p;
donatien 0:8e01dca41002 625 }
donatien 0:8e01dca41002 626 buflen = p->tot_len;
donatien 0:8e01dca41002 627 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
donatien 0:8e01dca41002 628 buflen, len, off, sock->lastoffset));
donatien 0:8e01dca41002 629
donatien 0:8e01dca41002 630 buflen -= sock->lastoffset;
donatien 0:8e01dca41002 631
donatien 0:8e01dca41002 632 if (len > buflen) {
donatien 0:8e01dca41002 633 copylen = buflen;
donatien 0:8e01dca41002 634 } else {
donatien 0:8e01dca41002 635 copylen = (u16_t)len;
donatien 0:8e01dca41002 636 }
donatien 0:8e01dca41002 637
donatien 0:8e01dca41002 638 /* copy the contents of the received buffer into
donatien 0:8e01dca41002 639 the supplied memory pointer mem */
donatien 0:8e01dca41002 640 pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
donatien 0:8e01dca41002 641
donatien 0:8e01dca41002 642 off += copylen;
donatien 0:8e01dca41002 643
donatien 0:8e01dca41002 644 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 645 LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
donatien 0:8e01dca41002 646 len -= copylen;
donatien 0:8e01dca41002 647 if ( (len <= 0) ||
donatien 0:8e01dca41002 648 (p->flags & PBUF_FLAG_PUSH) ||
donatien 0:8e01dca41002 649 (sock->rcvevent <= 0) ||
donatien 0:8e01dca41002 650 ((flags & MSG_PEEK)!=0)) {
donatien 0:8e01dca41002 651 done = 1;
donatien 0:8e01dca41002 652 }
donatien 0:8e01dca41002 653 } else {
donatien 0:8e01dca41002 654 done = 1;
donatien 0:8e01dca41002 655 }
donatien 0:8e01dca41002 656
donatien 0:8e01dca41002 657 /* Check to see from where the data was.*/
donatien 0:8e01dca41002 658 if (done) {
donatien 0:8e01dca41002 659 ip_addr_t fromaddr;
donatien 0:8e01dca41002 660 if (from && fromlen) {
donatien 0:8e01dca41002 661 struct sockaddr_in sin;
donatien 0:8e01dca41002 662
donatien 0:8e01dca41002 663 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 664 addr = &fromaddr;
donatien 0:8e01dca41002 665 netconn_getaddr(sock->conn, addr, &port, 0);
donatien 0:8e01dca41002 666 } else {
donatien 0:8e01dca41002 667 addr = netbuf_fromaddr((struct netbuf *)buf);
donatien 0:8e01dca41002 668 port = netbuf_fromport((struct netbuf *)buf);
donatien 0:8e01dca41002 669 }
donatien 0:8e01dca41002 670
donatien 0:8e01dca41002 671 memset(&sin, 0, sizeof(sin));
donatien 0:8e01dca41002 672 sin.sin_len = sizeof(sin);
donatien 0:8e01dca41002 673 sin.sin_family = AF_INET;
donatien 0:8e01dca41002 674 sin.sin_port = htons(port);
donatien 0:8e01dca41002 675 inet_addr_from_ipaddr(&sin.sin_addr, addr);
donatien 0:8e01dca41002 676
donatien 0:8e01dca41002 677 if (*fromlen > sizeof(sin)) {
donatien 0:8e01dca41002 678 *fromlen = sizeof(sin);
donatien 0:8e01dca41002 679 }
donatien 0:8e01dca41002 680
donatien 0:8e01dca41002 681 MEMCPY(from, &sin, *fromlen);
donatien 0:8e01dca41002 682
donatien 0:8e01dca41002 683 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
donatien 0:8e01dca41002 684 ip_addr_debug_print(SOCKETS_DEBUG, addr);
donatien 0:8e01dca41002 685 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
donatien 0:8e01dca41002 686 } else {
donatien 0:8e01dca41002 687 #if SOCKETS_DEBUG
donatien 0:8e01dca41002 688 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 689 addr = &fromaddr;
donatien 0:8e01dca41002 690 netconn_getaddr(sock->conn, addr, &port, 0);
donatien 0:8e01dca41002 691 } else {
donatien 0:8e01dca41002 692 addr = netbuf_fromaddr((struct netbuf *)buf);
donatien 0:8e01dca41002 693 port = netbuf_fromport((struct netbuf *)buf);
donatien 0:8e01dca41002 694 }
donatien 0:8e01dca41002 695
donatien 0:8e01dca41002 696 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
donatien 0:8e01dca41002 697 ip_addr_debug_print(SOCKETS_DEBUG, addr);
donatien 0:8e01dca41002 698 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
donatien 0:8e01dca41002 699 #endif /* SOCKETS_DEBUG */
donatien 0:8e01dca41002 700 }
donatien 0:8e01dca41002 701 }
donatien 0:8e01dca41002 702
donatien 0:8e01dca41002 703 /* If we don't peek the incoming message... */
donatien 0:8e01dca41002 704 if ((flags & MSG_PEEK) == 0) {
donatien 0:8e01dca41002 705 /* If this is a TCP socket, check if there is data left in the
donatien 0:8e01dca41002 706 buffer. If so, it should be saved in the sock structure for next
donatien 0:8e01dca41002 707 time around. */
donatien 0:8e01dca41002 708 if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
donatien 0:8e01dca41002 709 sock->lastdata = buf;
donatien 0:8e01dca41002 710 sock->lastoffset += copylen;
donatien 0:8e01dca41002 711 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
donatien 0:8e01dca41002 712 } else {
donatien 0:8e01dca41002 713 sock->lastdata = NULL;
donatien 0:8e01dca41002 714 sock->lastoffset = 0;
donatien 0:8e01dca41002 715 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
donatien 0:8e01dca41002 716 if (netconn_type(sock->conn) == NETCONN_TCP) {
donatien 0:8e01dca41002 717 pbuf_free((struct pbuf *)buf);
donatien 0:8e01dca41002 718 } else {
donatien 0:8e01dca41002 719 netbuf_delete((struct netbuf *)buf);
donatien 0:8e01dca41002 720 }
donatien 0:8e01dca41002 721 }
donatien 0:8e01dca41002 722 }
donatien 0:8e01dca41002 723 } while (!done);
donatien 0:8e01dca41002 724
donatien 0:8e01dca41002 725 if (off > 0) {
donatien 0:8e01dca41002 726 /* update receive window */
donatien 0:8e01dca41002 727 netconn_recved(sock->conn, (u32_t)off);
donatien 0:8e01dca41002 728 }
donatien 0:8e01dca41002 729 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 730 return off;
donatien 0:8e01dca41002 731 }
donatien 0:8e01dca41002 732
donatien 0:8e01dca41002 733 int
donatien 0:8e01dca41002 734 lwip_read(int s, void *mem, size_t len)
donatien 0:8e01dca41002 735 {
donatien 0:8e01dca41002 736 return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
donatien 0:8e01dca41002 737 }
donatien 0:8e01dca41002 738
donatien 0:8e01dca41002 739 int
donatien 0:8e01dca41002 740 lwip_recv(int s, void *mem, size_t len, int flags)
donatien 0:8e01dca41002 741 {
donatien 0:8e01dca41002 742 return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
donatien 0:8e01dca41002 743 }
donatien 0:8e01dca41002 744
donatien 0:8e01dca41002 745 int
donatien 0:8e01dca41002 746 lwip_send(int s, const void *data, size_t size, int flags)
donatien 0:8e01dca41002 747 {
donatien 0:8e01dca41002 748 struct lwip_sock *sock;
donatien 0:8e01dca41002 749 err_t err;
donatien 0:8e01dca41002 750 u8_t write_flags;
donatien 0:8e01dca41002 751
donatien 0:8e01dca41002 752 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
donatien 0:8e01dca41002 753 s, data, size, flags));
donatien 0:8e01dca41002 754
donatien 0:8e01dca41002 755 sock = get_socket(s);
donatien 0:8e01dca41002 756 if (!sock) {
donatien 0:8e01dca41002 757 return -1;
donatien 0:8e01dca41002 758 }
donatien 0:8e01dca41002 759
donatien 0:8e01dca41002 760 if (sock->conn->type != NETCONN_TCP) {
donatien 0:8e01dca41002 761 #if (LWIP_UDP || LWIP_RAW)
donatien 0:8e01dca41002 762 return lwip_sendto(s, data, size, flags, NULL, 0);
donatien 0:8e01dca41002 763 #else /* (LWIP_UDP || LWIP_RAW) */
donatien 0:8e01dca41002 764 sock_set_errno(sock, err_to_errno(ERR_ARG));
donatien 0:8e01dca41002 765 return -1;
donatien 0:8e01dca41002 766 #endif /* (LWIP_UDP || LWIP_RAW) */
donatien 0:8e01dca41002 767 }
donatien 0:8e01dca41002 768
donatien 0:8e01dca41002 769 if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
donatien 0:8e01dca41002 770 if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
donatien 0:8e01dca41002 771 /* too much data to ever send nonblocking! */
donatien 0:8e01dca41002 772 sock_set_errno(sock, EMSGSIZE);
donatien 0:8e01dca41002 773 return -1;
donatien 0:8e01dca41002 774 }
donatien 0:8e01dca41002 775 }
donatien 0:8e01dca41002 776
donatien 0:8e01dca41002 777 write_flags = NETCONN_COPY |
donatien 0:8e01dca41002 778 ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
donatien 0:8e01dca41002 779 ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
donatien 0:8e01dca41002 780 err = netconn_write(sock->conn, data, size, write_flags);
donatien 0:8e01dca41002 781
donatien 0:8e01dca41002 782 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
donatien 0:8e01dca41002 783 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 784 return (err == ERR_OK ? (int)size : -1);
donatien 0:8e01dca41002 785 }
donatien 0:8e01dca41002 786
donatien 0:8e01dca41002 787 int
donatien 0:8e01dca41002 788 lwip_sendto(int s, const void *data, size_t size, int flags,
donatien 0:8e01dca41002 789 const struct sockaddr *to, socklen_t tolen)
donatien 0:8e01dca41002 790 {
donatien 0:8e01dca41002 791 struct lwip_sock *sock;
donatien 0:8e01dca41002 792 err_t err;
donatien 0:8e01dca41002 793 u16_t short_size;
donatien 0:8e01dca41002 794 const struct sockaddr_in *to_in;
donatien 0:8e01dca41002 795 u16_t remote_port;
donatien 0:8e01dca41002 796 #if !LWIP_TCPIP_CORE_LOCKING
donatien 0:8e01dca41002 797 struct netbuf buf;
donatien 0:8e01dca41002 798 #endif
donatien 0:8e01dca41002 799
donatien 0:8e01dca41002 800 sock = get_socket(s);
donatien 0:8e01dca41002 801 if (!sock) {
donatien 0:8e01dca41002 802 return -1;
donatien 0:8e01dca41002 803 }
donatien 0:8e01dca41002 804
donatien 0:8e01dca41002 805 if (sock->conn->type == NETCONN_TCP) {
donatien 0:8e01dca41002 806 #if LWIP_TCP
donatien 0:8e01dca41002 807 return lwip_send(s, data, size, flags);
donatien 0:8e01dca41002 808 #else /* LWIP_TCP */
donatien 0:8e01dca41002 809 LWIP_UNUSED_ARG(flags);
donatien 0:8e01dca41002 810 sock_set_errno(sock, err_to_errno(ERR_ARG));
donatien 0:8e01dca41002 811 return -1;
donatien 0:8e01dca41002 812 #endif /* LWIP_TCP */
donatien 0:8e01dca41002 813 }
donatien 0:8e01dca41002 814
donatien 0:8e01dca41002 815 /* @todo: split into multiple sendto's? */
donatien 0:8e01dca41002 816 LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
donatien 0:8e01dca41002 817 short_size = (u16_t)size;
donatien 0:8e01dca41002 818 LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
donatien 0:8e01dca41002 819 ((tolen == sizeof(struct sockaddr_in)) &&
donatien 0:8e01dca41002 820 ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
donatien 0:8e01dca41002 821 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
donatien 0:8e01dca41002 822 to_in = (const struct sockaddr_in *)(void*)to;
donatien 0:8e01dca41002 823
donatien 0:8e01dca41002 824 #if LWIP_TCPIP_CORE_LOCKING
donatien 0:8e01dca41002 825 /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
donatien 0:8e01dca41002 826 {
donatien 0:8e01dca41002 827 struct pbuf* p;
donatien 0:8e01dca41002 828 ip_addr_t *remote_addr;
donatien 0:8e01dca41002 829
donatien 0:8e01dca41002 830 #if LWIP_NETIF_TX_SINGLE_PBUF
donatien 0:8e01dca41002 831 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
donatien 0:8e01dca41002 832 if (p != NULL) {
donatien 0:8e01dca41002 833 #if LWIP_CHECKSUM_ON_COPY
donatien 0:8e01dca41002 834 u16_t chksum = 0;
donatien 0:8e01dca41002 835 if (sock->conn->type != NETCONN_RAW) {
donatien 0:8e01dca41002 836 chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
donatien 0:8e01dca41002 837 } else
donatien 0:8e01dca41002 838 #endif /* LWIP_CHECKSUM_ON_COPY */
donatien 0:8e01dca41002 839 MEMCPY(p->payload, data, size);
donatien 0:8e01dca41002 840 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 841 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
donatien 0:8e01dca41002 842 if (p != NULL) {
donatien 0:8e01dca41002 843 p->payload = (void*)data;
donatien 0:8e01dca41002 844 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 845
donatien 0:8e01dca41002 846 if (to_in != NULL) {
donatien 0:8e01dca41002 847 inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
donatien 0:8e01dca41002 848 remote_port = ntohs(to_in->sin_port);
donatien 0:8e01dca41002 849 } else {
donatien 0:8e01dca41002 850 remote_addr = &sock->conn->pcb.raw->remote_ip;
donatien 0:8e01dca41002 851 if (sock->conn->type == NETCONN_RAW) {
donatien 0:8e01dca41002 852 remote_port = 0;
donatien 0:8e01dca41002 853 } else {
donatien 0:8e01dca41002 854 remote_port = sock->conn->pcb.udp->remote_port;
donatien 0:8e01dca41002 855 }
donatien 0:8e01dca41002 856 }
donatien 0:8e01dca41002 857
donatien 0:8e01dca41002 858 LOCK_TCPIP_CORE();
donatien 0:8e01dca41002 859 if (sock->conn->type == NETCONN_RAW) {
donatien 0:8e01dca41002 860 err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
donatien 0:8e01dca41002 861 } else {
donatien 0:8e01dca41002 862 #if LWIP_UDP
donatien 0:8e01dca41002 863 #if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
donatien 0:8e01dca41002 864 err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
donatien 0:8e01dca41002 865 remote_addr, remote_port, 1, chksum);
donatien 0:8e01dca41002 866 #else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 867 err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
donatien 0:8e01dca41002 868 remote_addr, remote_port);
donatien 0:8e01dca41002 869 #endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 870 #else /* LWIP_UDP */
donatien 0:8e01dca41002 871 err = ERR_ARG;
donatien 0:8e01dca41002 872 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 873 }
donatien 0:8e01dca41002 874 UNLOCK_TCPIP_CORE();
donatien 0:8e01dca41002 875
donatien 0:8e01dca41002 876 pbuf_free(p);
donatien 0:8e01dca41002 877 } else {
donatien 0:8e01dca41002 878 err = ERR_MEM;
donatien 0:8e01dca41002 879 }
donatien 0:8e01dca41002 880 }
donatien 0:8e01dca41002 881 #else /* LWIP_TCPIP_CORE_LOCKING */
donatien 0:8e01dca41002 882 /* initialize a buffer */
donatien 0:8e01dca41002 883 buf.p = buf.ptr = NULL;
donatien 0:8e01dca41002 884 #if LWIP_CHECKSUM_ON_COPY
donatien 0:8e01dca41002 885 buf.flags = 0;
donatien 0:8e01dca41002 886 #endif /* LWIP_CHECKSUM_ON_COPY */
donatien 0:8e01dca41002 887 if (to) {
donatien 0:8e01dca41002 888 inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
donatien 0:8e01dca41002 889 remote_port = ntohs(to_in->sin_port);
donatien 0:8e01dca41002 890 netbuf_fromport(&buf) = remote_port;
donatien 0:8e01dca41002 891 } else {
donatien 0:8e01dca41002 892 remote_port = 0;
donatien 0:8e01dca41002 893 ip_addr_set_any(&buf.addr);
donatien 0:8e01dca41002 894 netbuf_fromport(&buf) = 0;
donatien 0:8e01dca41002 895 }
donatien 0:8e01dca41002 896
donatien 0:8e01dca41002 897 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
donatien 0:8e01dca41002 898 s, data, short_size, flags));
donatien 0:8e01dca41002 899 ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
donatien 0:8e01dca41002 900 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
donatien 0:8e01dca41002 901
donatien 0:8e01dca41002 902 /* make the buffer point to the data that should be sent */
donatien 0:8e01dca41002 903 #if LWIP_NETIF_TX_SINGLE_PBUF
donatien 0:8e01dca41002 904 /* Allocate a new netbuf and copy the data into it. */
donatien 0:8e01dca41002 905 if (netbuf_alloc(&buf, short_size) == NULL) {
donatien 0:8e01dca41002 906 err = ERR_MEM;
donatien 0:8e01dca41002 907 } else {
donatien 0:8e01dca41002 908 #if LWIP_CHECKSUM_ON_COPY
donatien 0:8e01dca41002 909 if (sock->conn->type != NETCONN_RAW) {
donatien 0:8e01dca41002 910 u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
donatien 0:8e01dca41002 911 netbuf_set_chksum(&buf, chksum);
donatien 0:8e01dca41002 912 err = ERR_OK;
donatien 0:8e01dca41002 913 } else
donatien 0:8e01dca41002 914 #endif /* LWIP_CHECKSUM_ON_COPY */
donatien 0:8e01dca41002 915 {
donatien 0:8e01dca41002 916 err = netbuf_take(&buf, data, short_size);
donatien 0:8e01dca41002 917 }
donatien 0:8e01dca41002 918 }
donatien 0:8e01dca41002 919 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 920 err = netbuf_ref(&buf, data, short_size);
donatien 0:8e01dca41002 921 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
donatien 0:8e01dca41002 922 if (err == ERR_OK) {
donatien 0:8e01dca41002 923 /* send the data */
donatien 0:8e01dca41002 924 err = netconn_send(sock->conn, &buf);
donatien 0:8e01dca41002 925 }
donatien 0:8e01dca41002 926
donatien 0:8e01dca41002 927 /* deallocated the buffer */
donatien 0:8e01dca41002 928 netbuf_free(&buf);
donatien 0:8e01dca41002 929 #endif /* LWIP_TCPIP_CORE_LOCKING */
donatien 0:8e01dca41002 930 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 931 return (err == ERR_OK ? short_size : -1);
donatien 0:8e01dca41002 932 }
donatien 0:8e01dca41002 933
donatien 0:8e01dca41002 934 int
donatien 0:8e01dca41002 935 lwip_socket(int domain, int type, int protocol)
donatien 0:8e01dca41002 936 {
donatien 0:8e01dca41002 937 struct netconn *conn;
donatien 0:8e01dca41002 938 int i;
donatien 0:8e01dca41002 939
donatien 0:8e01dca41002 940 LWIP_UNUSED_ARG(domain);
donatien 0:8e01dca41002 941
donatien 0:8e01dca41002 942 /* create a netconn */
donatien 0:8e01dca41002 943 switch (type) {
donatien 0:8e01dca41002 944 case SOCK_RAW:
donatien 0:8e01dca41002 945 conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
donatien 0:8e01dca41002 946 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
donatien 0:8e01dca41002 947 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
donatien 0:8e01dca41002 948 break;
donatien 0:8e01dca41002 949 case SOCK_DGRAM:
donatien 0:8e01dca41002 950 conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
donatien 0:8e01dca41002 951 NETCONN_UDPLITE : NETCONN_UDP, event_callback);
donatien 0:8e01dca41002 952 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
donatien 0:8e01dca41002 953 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
donatien 0:8e01dca41002 954 break;
donatien 0:8e01dca41002 955 case SOCK_STREAM:
donatien 0:8e01dca41002 956 conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
donatien 0:8e01dca41002 957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
donatien 0:8e01dca41002 958 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
donatien 0:8e01dca41002 959 if (conn != NULL) {
donatien 0:8e01dca41002 960 /* Prevent automatic window updates, we do this on our own! */
donatien 0:8e01dca41002 961 netconn_set_noautorecved(conn, 1);
donatien 0:8e01dca41002 962 }
donatien 0:8e01dca41002 963 break;
donatien 0:8e01dca41002 964 default:
donatien 0:8e01dca41002 965 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
donatien 0:8e01dca41002 966 domain, type, protocol));
donatien 0:8e01dca41002 967 set_errno(EINVAL);
donatien 0:8e01dca41002 968 return -1;
donatien 0:8e01dca41002 969 }
donatien 0:8e01dca41002 970
donatien 0:8e01dca41002 971 if (!conn) {
donatien 0:8e01dca41002 972 LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
donatien 0:8e01dca41002 973 set_errno(ENOBUFS);
donatien 0:8e01dca41002 974 return -1;
donatien 0:8e01dca41002 975 }
donatien 0:8e01dca41002 976
donatien 0:8e01dca41002 977 i = alloc_socket(conn, 0);
donatien 0:8e01dca41002 978
donatien 0:8e01dca41002 979 if (i == -1) {
donatien 0:8e01dca41002 980 netconn_delete(conn);
donatien 0:8e01dca41002 981 set_errno(ENFILE);
donatien 0:8e01dca41002 982 return -1;
donatien 0:8e01dca41002 983 }
donatien 0:8e01dca41002 984 conn->socket = i;
donatien 0:8e01dca41002 985 LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
donatien 0:8e01dca41002 986 set_errno(0);
donatien 0:8e01dca41002 987 return i;
donatien 0:8e01dca41002 988 }
donatien 0:8e01dca41002 989
donatien 0:8e01dca41002 990 int
donatien 0:8e01dca41002 991 lwip_write(int s, const void *data, size_t size)
donatien 0:8e01dca41002 992 {
donatien 0:8e01dca41002 993 return lwip_send(s, data, size, 0);
donatien 0:8e01dca41002 994 }
donatien 0:8e01dca41002 995
donatien 0:8e01dca41002 996 /**
donatien 0:8e01dca41002 997 * Go through the readset and writeset lists and see which socket of the sockets
donatien 0:8e01dca41002 998 * set in the sets has events. On return, readset, writeset and exceptset have
donatien 0:8e01dca41002 999 * the sockets enabled that had events.
donatien 0:8e01dca41002 1000 *
donatien 0:8e01dca41002 1001 * exceptset is not used for now!!!
donatien 0:8e01dca41002 1002 *
donatien 0:8e01dca41002 1003 * @param maxfdp1 the highest socket index in the sets
donatien 0:8e01dca41002 1004 * @param readset_in: set of sockets to check for read events
donatien 0:8e01dca41002 1005 * @param writeset_in: set of sockets to check for write events
donatien 0:8e01dca41002 1006 * @param exceptset_in: set of sockets to check for error events
donatien 0:8e01dca41002 1007 * @param readset_out: set of sockets that had read events
donatien 0:8e01dca41002 1008 * @param writeset_out: set of sockets that had write events
donatien 0:8e01dca41002 1009 * @param exceptset_out: set os sockets that had error events
donatien 0:8e01dca41002 1010 * @return number of sockets that had events (read/write/exception) (>= 0)
donatien 0:8e01dca41002 1011 */
donatien 0:8e01dca41002 1012 static int
donatien 0:8e01dca41002 1013 lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
donatien 0:8e01dca41002 1014 fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
donatien 0:8e01dca41002 1015 {
donatien 0:8e01dca41002 1016 int i, nready = 0;
donatien 0:8e01dca41002 1017 fd_set lreadset, lwriteset, lexceptset;
donatien 0:8e01dca41002 1018 struct lwip_sock *sock;
donatien 0:8e01dca41002 1019 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 1020
donatien 0:8e01dca41002 1021 FD_ZERO(&lreadset);
donatien 0:8e01dca41002 1022 FD_ZERO(&lwriteset);
donatien 0:8e01dca41002 1023 FD_ZERO(&lexceptset);
donatien 0:8e01dca41002 1024
donatien 0:8e01dca41002 1025 /* Go through each socket in each list to count number of sockets which
donatien 0:8e01dca41002 1026 currently match */
donatien 0:8e01dca41002 1027 for(i = 0; i < maxfdp1; i++) {
donatien 0:8e01dca41002 1028 void* lastdata = NULL;
donatien 0:8e01dca41002 1029 s16_t rcvevent = 0;
donatien 0:8e01dca41002 1030 u16_t sendevent = 0;
donatien 0:8e01dca41002 1031 u16_t errevent = 0;
donatien 0:8e01dca41002 1032 /* First get the socket's status (protected)... */
donatien 0:8e01dca41002 1033 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1034 sock = tryget_socket(i);
donatien 0:8e01dca41002 1035 if (sock != NULL) {
donatien 0:8e01dca41002 1036 lastdata = sock->lastdata;
donatien 0:8e01dca41002 1037 rcvevent = sock->rcvevent;
donatien 0:8e01dca41002 1038 sendevent = sock->sendevent;
donatien 0:8e01dca41002 1039 errevent = sock->errevent;
donatien 0:8e01dca41002 1040 }
donatien 0:8e01dca41002 1041 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1042 /* ... then examine it: */
donatien 0:8e01dca41002 1043 /* See if netconn of this socket is ready for read */
donatien 0:8e01dca41002 1044 if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
donatien 0:8e01dca41002 1045 FD_SET(i, &lreadset);
donatien 0:8e01dca41002 1046 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
donatien 0:8e01dca41002 1047 nready++;
donatien 0:8e01dca41002 1048 }
donatien 0:8e01dca41002 1049 /* See if netconn of this socket is ready for write */
donatien 0:8e01dca41002 1050 if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
donatien 0:8e01dca41002 1051 FD_SET(i, &lwriteset);
donatien 0:8e01dca41002 1052 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
donatien 0:8e01dca41002 1053 nready++;
donatien 0:8e01dca41002 1054 }
donatien 0:8e01dca41002 1055 /* See if netconn of this socket had an error */
donatien 0:8e01dca41002 1056 if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
donatien 0:8e01dca41002 1057 FD_SET(i, &lexceptset);
donatien 0:8e01dca41002 1058 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
donatien 0:8e01dca41002 1059 nready++;
donatien 0:8e01dca41002 1060 }
donatien 0:8e01dca41002 1061 }
donatien 0:8e01dca41002 1062 /* copy local sets to the ones provided as arguments */
donatien 0:8e01dca41002 1063 *readset_out = lreadset;
donatien 0:8e01dca41002 1064 *writeset_out = lwriteset;
donatien 0:8e01dca41002 1065 *exceptset_out = lexceptset;
donatien 0:8e01dca41002 1066
donatien 0:8e01dca41002 1067 LWIP_ASSERT("nready >= 0", nready >= 0);
donatien 0:8e01dca41002 1068 return nready;
donatien 0:8e01dca41002 1069 }
donatien 0:8e01dca41002 1070
donatien 0:8e01dca41002 1071 /**
donatien 0:8e01dca41002 1072 * Processing exceptset is not yet implemented.
donatien 0:8e01dca41002 1073 */
donatien 0:8e01dca41002 1074 int
donatien 0:8e01dca41002 1075 lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
donatien 0:8e01dca41002 1076 struct timeval *timeout)
donatien 0:8e01dca41002 1077 {
donatien 0:8e01dca41002 1078 u32_t waitres = 0;
donatien 0:8e01dca41002 1079 int nready;
donatien 0:8e01dca41002 1080 fd_set lreadset, lwriteset, lexceptset;
donatien 0:8e01dca41002 1081 u32_t msectimeout;
donatien 0:8e01dca41002 1082 struct lwip_select_cb select_cb;
donatien 0:8e01dca41002 1083 err_t err;
donatien 0:8e01dca41002 1084 int i;
donatien 0:8e01dca41002 1085 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 1086
donatien 0:8e01dca41002 1087 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
donatien 0:8e01dca41002 1088 maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
donatien 0:8e01dca41002 1089 timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
donatien 0:8e01dca41002 1090 timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
donatien 0:8e01dca41002 1091
donatien 0:8e01dca41002 1092 /* Go through each socket in each list to count number of sockets which
donatien 0:8e01dca41002 1093 currently match */
donatien 0:8e01dca41002 1094 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
donatien 0:8e01dca41002 1095
donatien 0:8e01dca41002 1096 /* If we don't have any current events, then suspend if we are supposed to */
donatien 0:8e01dca41002 1097 if (!nready) {
donatien 0:8e01dca41002 1098 if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
donatien 0:8e01dca41002 1099 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
donatien 0:8e01dca41002 1100 /* This is OK as the local fdsets are empty and nready is zero,
donatien 0:8e01dca41002 1101 or we would have returned earlier. */
donatien 0:8e01dca41002 1102 goto return_copy_fdsets;
donatien 0:8e01dca41002 1103 }
donatien 0:8e01dca41002 1104
donatien 0:8e01dca41002 1105 /* None ready: add our semaphore to list:
donatien 0:8e01dca41002 1106 We don't actually need any dynamic memory. Our entry on the
donatien 0:8e01dca41002 1107 list is only valid while we are in this function, so it's ok
donatien 0:8e01dca41002 1108 to use local variables. */
donatien 0:8e01dca41002 1109
donatien 0:8e01dca41002 1110 select_cb.next = NULL;
donatien 0:8e01dca41002 1111 select_cb.prev = NULL;
donatien 0:8e01dca41002 1112 select_cb.readset = readset;
donatien 0:8e01dca41002 1113 select_cb.writeset = writeset;
donatien 0:8e01dca41002 1114 select_cb.exceptset = exceptset;
donatien 0:8e01dca41002 1115 select_cb.sem_signalled = 0;
donatien 0:8e01dca41002 1116 err = sys_sem_new(&select_cb.sem, 0);
donatien 0:8e01dca41002 1117 if (err != ERR_OK) {
donatien 0:8e01dca41002 1118 /* failed to create semaphore */
donatien 0:8e01dca41002 1119 set_errno(ENOMEM);
donatien 0:8e01dca41002 1120 return -1;
donatien 0:8e01dca41002 1121 }
donatien 0:8e01dca41002 1122
donatien 0:8e01dca41002 1123 /* Protect the select_cb_list */
donatien 0:8e01dca41002 1124 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1125
donatien 0:8e01dca41002 1126 /* Put this select_cb on top of list */
donatien 0:8e01dca41002 1127 select_cb.next = select_cb_list;
donatien 0:8e01dca41002 1128 if (select_cb_list != NULL) {
donatien 0:8e01dca41002 1129 select_cb_list->prev = &select_cb;
donatien 0:8e01dca41002 1130 }
donatien 0:8e01dca41002 1131 select_cb_list = &select_cb;
donatien 0:8e01dca41002 1132 /* Increasing this counter tells even_callback that the list has changed. */
donatien 0:8e01dca41002 1133 select_cb_ctr++;
donatien 0:8e01dca41002 1134
donatien 0:8e01dca41002 1135 /* Now we can safely unprotect */
donatien 0:8e01dca41002 1136 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1137
donatien 0:8e01dca41002 1138 /* Increase select_waiting for each socket we are interested in */
donatien 0:8e01dca41002 1139 for(i = 0; i < maxfdp1; i++) {
donatien 0:8e01dca41002 1140 if ((readset && FD_ISSET(i, readset)) ||
donatien 0:8e01dca41002 1141 (writeset && FD_ISSET(i, writeset)) ||
donatien 0:8e01dca41002 1142 (exceptset && FD_ISSET(i, exceptset))) {
donatien 0:8e01dca41002 1143 struct lwip_sock *sock = tryget_socket(i);
donatien 0:8e01dca41002 1144 LWIP_ASSERT("sock != NULL", sock != NULL);
donatien 0:8e01dca41002 1145 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1146 sock->select_waiting++;
donatien 0:8e01dca41002 1147 LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
donatien 0:8e01dca41002 1148 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1149 }
donatien 0:8e01dca41002 1150 }
donatien 0:8e01dca41002 1151
donatien 0:8e01dca41002 1152 /* Call lwip_selscan again: there could have been events between
donatien 0:8e01dca41002 1153 the last scan (whithout us on the list) and putting us on the list! */
donatien 0:8e01dca41002 1154 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
donatien 0:8e01dca41002 1155 if (!nready) {
donatien 0:8e01dca41002 1156 /* Still none ready, just wait to be woken */
donatien 0:8e01dca41002 1157 if (timeout == 0) {
donatien 0:8e01dca41002 1158 /* Wait forever */
donatien 0:8e01dca41002 1159 msectimeout = 0;
donatien 0:8e01dca41002 1160 } else {
donatien 0:8e01dca41002 1161 msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
donatien 0:8e01dca41002 1162 if (msectimeout == 0) {
donatien 0:8e01dca41002 1163 /* Wait 1ms at least (0 means wait forever) */
donatien 0:8e01dca41002 1164 msectimeout = 1;
donatien 0:8e01dca41002 1165 }
donatien 0:8e01dca41002 1166 }
donatien 0:8e01dca41002 1167
donatien 0:8e01dca41002 1168 waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
donatien 0:8e01dca41002 1169 }
donatien 0:8e01dca41002 1170 /* Increase select_waiting for each socket we are interested in */
donatien 0:8e01dca41002 1171 for(i = 0; i < maxfdp1; i++) {
donatien 0:8e01dca41002 1172 if ((readset && FD_ISSET(i, readset)) ||
donatien 0:8e01dca41002 1173 (writeset && FD_ISSET(i, writeset)) ||
donatien 0:8e01dca41002 1174 (exceptset && FD_ISSET(i, exceptset))) {
donatien 0:8e01dca41002 1175 struct lwip_sock *sock = tryget_socket(i);
donatien 0:8e01dca41002 1176 LWIP_ASSERT("sock != NULL", sock != NULL);
donatien 0:8e01dca41002 1177 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1178 sock->select_waiting--;
donatien 0:8e01dca41002 1179 LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
donatien 0:8e01dca41002 1180 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1181 }
donatien 0:8e01dca41002 1182 }
donatien 0:8e01dca41002 1183 /* Take us off the list */
donatien 0:8e01dca41002 1184 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1185 if (select_cb.next != NULL) {
donatien 0:8e01dca41002 1186 select_cb.next->prev = select_cb.prev;
donatien 0:8e01dca41002 1187 }
donatien 0:8e01dca41002 1188 if (select_cb_list == &select_cb) {
donatien 0:8e01dca41002 1189 LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
donatien 0:8e01dca41002 1190 select_cb_list = select_cb.next;
donatien 0:8e01dca41002 1191 } else {
donatien 0:8e01dca41002 1192 LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
donatien 0:8e01dca41002 1193 select_cb.prev->next = select_cb.next;
donatien 0:8e01dca41002 1194 }
donatien 0:8e01dca41002 1195 /* Increasing this counter tells even_callback that the list has changed. */
donatien 0:8e01dca41002 1196 select_cb_ctr++;
donatien 0:8e01dca41002 1197 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1198
donatien 0:8e01dca41002 1199 sys_sem_free(&select_cb.sem);
donatien 0:8e01dca41002 1200 if (waitres == SYS_ARCH_TIMEOUT) {
donatien 0:8e01dca41002 1201 /* Timeout */
donatien 0:8e01dca41002 1202 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
donatien 0:8e01dca41002 1203 /* This is OK as the local fdsets are empty and nready is zero,
donatien 0:8e01dca41002 1204 or we would have returned earlier. */
donatien 0:8e01dca41002 1205 goto return_copy_fdsets;
donatien 0:8e01dca41002 1206 }
donatien 0:8e01dca41002 1207
donatien 0:8e01dca41002 1208 /* See what's set */
donatien 0:8e01dca41002 1209 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
donatien 0:8e01dca41002 1210 }
donatien 0:8e01dca41002 1211
donatien 0:8e01dca41002 1212 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
donatien 0:8e01dca41002 1213 return_copy_fdsets:
donatien 0:8e01dca41002 1214 set_errno(0);
donatien 0:8e01dca41002 1215 if (readset) {
donatien 0:8e01dca41002 1216 *readset = lreadset;
donatien 0:8e01dca41002 1217 }
donatien 0:8e01dca41002 1218 if (writeset) {
donatien 0:8e01dca41002 1219 *writeset = lwriteset;
donatien 0:8e01dca41002 1220 }
donatien 0:8e01dca41002 1221 if (exceptset) {
donatien 0:8e01dca41002 1222 *exceptset = lexceptset;
donatien 0:8e01dca41002 1223 }
donatien 0:8e01dca41002 1224
donatien 0:8e01dca41002 1225
donatien 0:8e01dca41002 1226 return nready;
donatien 0:8e01dca41002 1227 }
donatien 0:8e01dca41002 1228
donatien 0:8e01dca41002 1229 /**
donatien 0:8e01dca41002 1230 * Callback registered in the netconn layer for each socket-netconn.
donatien 0:8e01dca41002 1231 * Processes recvevent (data available) and wakes up tasks waiting for select.
donatien 0:8e01dca41002 1232 */
donatien 0:8e01dca41002 1233 static void
donatien 0:8e01dca41002 1234 event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
donatien 0:8e01dca41002 1235 {
donatien 0:8e01dca41002 1236 int s;
donatien 0:8e01dca41002 1237 struct lwip_sock *sock;
donatien 0:8e01dca41002 1238 struct lwip_select_cb *scb;
donatien 0:8e01dca41002 1239 int last_select_cb_ctr;
donatien 0:8e01dca41002 1240 SYS_ARCH_DECL_PROTECT(lev);
donatien 0:8e01dca41002 1241
donatien 0:8e01dca41002 1242 LWIP_UNUSED_ARG(len);
donatien 0:8e01dca41002 1243
donatien 0:8e01dca41002 1244 /* Get socket */
donatien 0:8e01dca41002 1245 if (conn) {
donatien 0:8e01dca41002 1246 s = conn->socket;
donatien 0:8e01dca41002 1247 if (s < 0) {
donatien 0:8e01dca41002 1248 /* Data comes in right away after an accept, even though
donatien 0:8e01dca41002 1249 * the server task might not have created a new socket yet.
donatien 0:8e01dca41002 1250 * Just count down (or up) if that's the case and we
donatien 0:8e01dca41002 1251 * will use the data later. Note that only receive events
donatien 0:8e01dca41002 1252 * can happen before the new socket is set up. */
donatien 0:8e01dca41002 1253 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1254 if (conn->socket < 0) {
donatien 0:8e01dca41002 1255 if (evt == NETCONN_EVT_RCVPLUS) {
donatien 0:8e01dca41002 1256 conn->socket--;
donatien 0:8e01dca41002 1257 }
donatien 0:8e01dca41002 1258 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1259 return;
donatien 0:8e01dca41002 1260 }
donatien 0:8e01dca41002 1261 s = conn->socket;
donatien 0:8e01dca41002 1262 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1263 }
donatien 0:8e01dca41002 1264
donatien 0:8e01dca41002 1265 sock = get_socket(s);
donatien 0:8e01dca41002 1266 if (!sock) {
donatien 0:8e01dca41002 1267 return;
donatien 0:8e01dca41002 1268 }
donatien 0:8e01dca41002 1269 } else {
donatien 0:8e01dca41002 1270 return;
donatien 0:8e01dca41002 1271 }
donatien 0:8e01dca41002 1272
donatien 0:8e01dca41002 1273 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1274 /* Set event as required */
donatien 0:8e01dca41002 1275 switch (evt) {
donatien 0:8e01dca41002 1276 case NETCONN_EVT_RCVPLUS:
donatien 0:8e01dca41002 1277 sock->rcvevent++;
donatien 0:8e01dca41002 1278 break;
donatien 0:8e01dca41002 1279 case NETCONN_EVT_RCVMINUS:
donatien 0:8e01dca41002 1280 sock->rcvevent--;
donatien 0:8e01dca41002 1281 break;
donatien 0:8e01dca41002 1282 case NETCONN_EVT_SENDPLUS:
donatien 0:8e01dca41002 1283 sock->sendevent = 1;
donatien 0:8e01dca41002 1284 break;
donatien 0:8e01dca41002 1285 case NETCONN_EVT_SENDMINUS:
donatien 0:8e01dca41002 1286 sock->sendevent = 0;
donatien 0:8e01dca41002 1287 break;
donatien 0:8e01dca41002 1288 case NETCONN_EVT_ERROR:
donatien 0:8e01dca41002 1289 sock->errevent = 1;
donatien 0:8e01dca41002 1290 break;
donatien 0:8e01dca41002 1291 default:
donatien 0:8e01dca41002 1292 LWIP_ASSERT("unknown event", 0);
donatien 0:8e01dca41002 1293 break;
donatien 0:8e01dca41002 1294 }
donatien 0:8e01dca41002 1295
donatien 0:8e01dca41002 1296 if (sock->select_waiting == 0) {
donatien 0:8e01dca41002 1297 /* noone is waiting for this socket, no need to check select_cb_list */
donatien 0:8e01dca41002 1298 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1299 return;
donatien 0:8e01dca41002 1300 }
donatien 0:8e01dca41002 1301
donatien 0:8e01dca41002 1302 /* Now decide if anyone is waiting for this socket */
donatien 0:8e01dca41002 1303 /* NOTE: This code goes through the select_cb_list list multiple times
donatien 0:8e01dca41002 1304 ONLY IF a select was actually waiting. We go through the list the number
donatien 0:8e01dca41002 1305 of waiting select calls + 1. This list is expected to be small. */
donatien 0:8e01dca41002 1306
donatien 0:8e01dca41002 1307 /* At this point, SYS_ARCH is still protected! */
donatien 0:8e01dca41002 1308 again:
donatien 0:8e01dca41002 1309 for (scb = select_cb_list; scb != NULL; scb = scb->next) {
donatien 0:8e01dca41002 1310 if (scb->sem_signalled == 0) {
donatien 0:8e01dca41002 1311 /* semaphore not signalled yet */
donatien 0:8e01dca41002 1312 int do_signal = 0;
donatien 0:8e01dca41002 1313 /* Test this select call for our socket */
donatien 0:8e01dca41002 1314 if (sock->rcvevent > 0) {
donatien 0:8e01dca41002 1315 if (scb->readset && FD_ISSET(s, scb->readset)) {
donatien 0:8e01dca41002 1316 do_signal = 1;
donatien 0:8e01dca41002 1317 }
donatien 0:8e01dca41002 1318 }
donatien 0:8e01dca41002 1319 if (sock->sendevent != 0) {
donatien 0:8e01dca41002 1320 if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
donatien 0:8e01dca41002 1321 do_signal = 1;
donatien 0:8e01dca41002 1322 }
donatien 0:8e01dca41002 1323 }
donatien 0:8e01dca41002 1324 if (sock->errevent != 0) {
donatien 0:8e01dca41002 1325 if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
donatien 0:8e01dca41002 1326 do_signal = 1;
donatien 0:8e01dca41002 1327 }
donatien 0:8e01dca41002 1328 }
donatien 0:8e01dca41002 1329 if (do_signal) {
donatien 0:8e01dca41002 1330 scb->sem_signalled = 1;
donatien 0:8e01dca41002 1331 /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
donatien 0:8e01dca41002 1332 lead to the select thread taking itself off the list, invalidagin the semaphore. */
donatien 0:8e01dca41002 1333 sys_sem_signal(&scb->sem);
donatien 0:8e01dca41002 1334 }
donatien 0:8e01dca41002 1335 }
donatien 0:8e01dca41002 1336 /* unlock interrupts with each step */
donatien 0:8e01dca41002 1337 last_select_cb_ctr = select_cb_ctr;
donatien 0:8e01dca41002 1338 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1339 /* this makes sure interrupt protection time is short */
donatien 0:8e01dca41002 1340 SYS_ARCH_PROTECT(lev);
donatien 0:8e01dca41002 1341 if (last_select_cb_ctr != select_cb_ctr) {
donatien 0:8e01dca41002 1342 /* someone has changed select_cb_list, restart at the beginning */
donatien 0:8e01dca41002 1343 goto again;
donatien 0:8e01dca41002 1344 }
donatien 0:8e01dca41002 1345 }
donatien 0:8e01dca41002 1346 SYS_ARCH_UNPROTECT(lev);
donatien 0:8e01dca41002 1347 }
donatien 0:8e01dca41002 1348
donatien 0:8e01dca41002 1349 /**
donatien 0:8e01dca41002 1350 * Unimplemented: Close one end of a full-duplex connection.
donatien 0:8e01dca41002 1351 * Currently, the full connection is closed.
donatien 0:8e01dca41002 1352 */
donatien 0:8e01dca41002 1353 int
donatien 0:8e01dca41002 1354 lwip_shutdown(int s, int how)
donatien 0:8e01dca41002 1355 {
donatien 0:8e01dca41002 1356 struct lwip_sock *sock;
donatien 0:8e01dca41002 1357 err_t err;
donatien 0:8e01dca41002 1358 u8_t shut_rx = 0, shut_tx = 0;
donatien 0:8e01dca41002 1359
donatien 0:8e01dca41002 1360 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
donatien 0:8e01dca41002 1361
donatien 0:8e01dca41002 1362 sock = get_socket(s);
donatien 0:8e01dca41002 1363 if (!sock) {
donatien 0:8e01dca41002 1364 return -1;
donatien 0:8e01dca41002 1365 }
donatien 0:8e01dca41002 1366
donatien 0:8e01dca41002 1367 if (sock->conn != NULL) {
donatien 0:8e01dca41002 1368 if (netconn_type(sock->conn) != NETCONN_TCP) {
donatien 0:8e01dca41002 1369 sock_set_errno(sock, EOPNOTSUPP);
donatien 0:8e01dca41002 1370 return EOPNOTSUPP;
donatien 0:8e01dca41002 1371 }
donatien 0:8e01dca41002 1372 } else {
donatien 0:8e01dca41002 1373 sock_set_errno(sock, ENOTCONN);
donatien 0:8e01dca41002 1374 return ENOTCONN;
donatien 0:8e01dca41002 1375 }
donatien 0:8e01dca41002 1376
donatien 0:8e01dca41002 1377 if (how == SHUT_RD) {
donatien 0:8e01dca41002 1378 shut_rx = 1;
donatien 0:8e01dca41002 1379 } else if (how == SHUT_WR) {
donatien 0:8e01dca41002 1380 shut_tx = 1;
donatien 0:8e01dca41002 1381 } else if(how == SHUT_RDWR) {
donatien 0:8e01dca41002 1382 shut_rx = 1;
donatien 0:8e01dca41002 1383 shut_tx = 1;
donatien 0:8e01dca41002 1384 } else {
donatien 0:8e01dca41002 1385 sock_set_errno(sock, EINVAL);
donatien 0:8e01dca41002 1386 return EINVAL;
donatien 0:8e01dca41002 1387 }
donatien 0:8e01dca41002 1388 err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
donatien 0:8e01dca41002 1389
donatien 0:8e01dca41002 1390 sock_set_errno(sock, err_to_errno(err));
donatien 0:8e01dca41002 1391 return (err == ERR_OK ? 0 : -1);
donatien 0:8e01dca41002 1392 }
donatien 0:8e01dca41002 1393
donatien 0:8e01dca41002 1394 static int
donatien 0:8e01dca41002 1395 lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
donatien 0:8e01dca41002 1396 {
donatien 0:8e01dca41002 1397 struct lwip_sock *sock;
donatien 0:8e01dca41002 1398 struct sockaddr_in sin;
donatien 0:8e01dca41002 1399 ip_addr_t naddr;
donatien 0:8e01dca41002 1400
donatien 0:8e01dca41002 1401 sock = get_socket(s);
donatien 0:8e01dca41002 1402 if (!sock) {
donatien 0:8e01dca41002 1403 return -1;
donatien 0:8e01dca41002 1404 }
donatien 0:8e01dca41002 1405
donatien 0:8e01dca41002 1406 memset(&sin, 0, sizeof(sin));
donatien 0:8e01dca41002 1407 sin.sin_len = sizeof(sin);
donatien 0:8e01dca41002 1408 sin.sin_family = AF_INET;
donatien 0:8e01dca41002 1409
donatien 0:8e01dca41002 1410 /* get the IP address and port */
donatien 0:8e01dca41002 1411 netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
donatien 0:8e01dca41002 1412
donatien 0:8e01dca41002 1413 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
donatien 0:8e01dca41002 1414 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
donatien 0:8e01dca41002 1415 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
donatien 0:8e01dca41002 1416
donatien 0:8e01dca41002 1417 sin.sin_port = htons(sin.sin_port);
donatien 0:8e01dca41002 1418 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
donatien 0:8e01dca41002 1419
donatien 0:8e01dca41002 1420 if (*namelen > sizeof(sin)) {
donatien 0:8e01dca41002 1421 *namelen = sizeof(sin);
donatien 0:8e01dca41002 1422 }
donatien 0:8e01dca41002 1423
donatien 0:8e01dca41002 1424 MEMCPY(name, &sin, *namelen);
donatien 0:8e01dca41002 1425 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 1426 return 0;
donatien 0:8e01dca41002 1427 }
donatien 0:8e01dca41002 1428
donatien 0:8e01dca41002 1429 int
donatien 0:8e01dca41002 1430 lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
donatien 0:8e01dca41002 1431 {
donatien 0:8e01dca41002 1432 return lwip_getaddrname(s, name, namelen, 0);
donatien 0:8e01dca41002 1433 }
donatien 0:8e01dca41002 1434
donatien 0:8e01dca41002 1435 int
donatien 0:8e01dca41002 1436 lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
donatien 0:8e01dca41002 1437 {
donatien 0:8e01dca41002 1438 return lwip_getaddrname(s, name, namelen, 1);
donatien 0:8e01dca41002 1439 }
donatien 0:8e01dca41002 1440
donatien 0:8e01dca41002 1441 int
donatien 0:8e01dca41002 1442 lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
donatien 0:8e01dca41002 1443 {
donatien 0:8e01dca41002 1444 err_t err = ERR_OK;
donatien 0:8e01dca41002 1445 struct lwip_sock *sock = get_socket(s);
donatien 0:8e01dca41002 1446 struct lwip_setgetsockopt_data data;
donatien 0:8e01dca41002 1447
donatien 0:8e01dca41002 1448 if (!sock) {
donatien 0:8e01dca41002 1449 return -1;
donatien 0:8e01dca41002 1450 }
donatien 0:8e01dca41002 1451
donatien 0:8e01dca41002 1452 if ((NULL == optval) || (NULL == optlen)) {
donatien 0:8e01dca41002 1453 sock_set_errno(sock, EFAULT);
donatien 0:8e01dca41002 1454 return -1;
donatien 0:8e01dca41002 1455 }
donatien 0:8e01dca41002 1456
donatien 0:8e01dca41002 1457 /* Do length and type checks for the various options first, to keep it readable. */
donatien 0:8e01dca41002 1458 switch (level) {
donatien 0:8e01dca41002 1459
donatien 0:8e01dca41002 1460 /* Level: SOL_SOCKET */
donatien 0:8e01dca41002 1461 case SOL_SOCKET:
donatien 0:8e01dca41002 1462 switch (optname) {
donatien 0:8e01dca41002 1463
donatien 0:8e01dca41002 1464 case SO_ACCEPTCONN:
donatien 0:8e01dca41002 1465 case SO_BROADCAST:
donatien 0:8e01dca41002 1466 /* UNIMPL case SO_DEBUG: */
donatien 0:8e01dca41002 1467 /* UNIMPL case SO_DONTROUTE: */
donatien 0:8e01dca41002 1468 case SO_ERROR:
donatien 0:8e01dca41002 1469 case SO_KEEPALIVE:
donatien 0:8e01dca41002 1470 /* UNIMPL case SO_CONTIMEO: */
donatien 0:8e01dca41002 1471 /* UNIMPL case SO_SNDTIMEO: */
donatien 0:8e01dca41002 1472 #if LWIP_SO_RCVTIMEO
donatien 0:8e01dca41002 1473 case SO_RCVTIMEO:
donatien 0:8e01dca41002 1474 #endif /* LWIP_SO_RCVTIMEO */
donatien 0:8e01dca41002 1475 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 1476 case SO_RCVBUF:
donatien 0:8e01dca41002 1477 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 1478 /* UNIMPL case SO_OOBINLINE: */
donatien 0:8e01dca41002 1479 /* UNIMPL case SO_SNDBUF: */
donatien 0:8e01dca41002 1480 /* UNIMPL case SO_RCVLOWAT: */
donatien 0:8e01dca41002 1481 /* UNIMPL case SO_SNDLOWAT: */
donatien 0:8e01dca41002 1482 #if SO_REUSE
donatien 0:8e01dca41002 1483 case SO_REUSEADDR:
donatien 0:8e01dca41002 1484 case SO_REUSEPORT:
donatien 0:8e01dca41002 1485 #endif /* SO_REUSE */
donatien 0:8e01dca41002 1486 case SO_TYPE:
donatien 0:8e01dca41002 1487 /* UNIMPL case SO_USELOOPBACK: */
donatien 0:8e01dca41002 1488 if (*optlen < sizeof(int)) {
donatien 0:8e01dca41002 1489 err = EINVAL;
donatien 0:8e01dca41002 1490 }
donatien 0:8e01dca41002 1491 break;
donatien 0:8e01dca41002 1492
donatien 0:8e01dca41002 1493 case SO_NO_CHECK:
donatien 0:8e01dca41002 1494 if (*optlen < sizeof(int)) {
donatien 0:8e01dca41002 1495 err = EINVAL;
donatien 0:8e01dca41002 1496 }
donatien 0:8e01dca41002 1497 #if LWIP_UDP
donatien 0:8e01dca41002 1498 if ((sock->conn->type != NETCONN_UDP) ||
donatien 0:8e01dca41002 1499 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
donatien 0:8e01dca41002 1500 /* this flag is only available for UDP, not for UDP lite */
donatien 0:8e01dca41002 1501 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1502 }
donatien 0:8e01dca41002 1503 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 1504 break;
donatien 0:8e01dca41002 1505
donatien 0:8e01dca41002 1506 default:
donatien 0:8e01dca41002 1507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1508 s, optname));
donatien 0:8e01dca41002 1509 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1510 } /* switch (optname) */
donatien 0:8e01dca41002 1511 break;
donatien 0:8e01dca41002 1512
donatien 0:8e01dca41002 1513 /* Level: IPPROTO_IP */
donatien 0:8e01dca41002 1514 case IPPROTO_IP:
donatien 0:8e01dca41002 1515 switch (optname) {
donatien 0:8e01dca41002 1516 /* UNIMPL case IP_HDRINCL: */
donatien 0:8e01dca41002 1517 /* UNIMPL case IP_RCVDSTADDR: */
donatien 0:8e01dca41002 1518 /* UNIMPL case IP_RCVIF: */
donatien 0:8e01dca41002 1519 case IP_TTL:
donatien 0:8e01dca41002 1520 case IP_TOS:
donatien 0:8e01dca41002 1521 if (*optlen < sizeof(int)) {
donatien 0:8e01dca41002 1522 err = EINVAL;
donatien 0:8e01dca41002 1523 }
donatien 0:8e01dca41002 1524 break;
donatien 0:8e01dca41002 1525 #if LWIP_IGMP
donatien 0:8e01dca41002 1526 case IP_MULTICAST_TTL:
donatien 0:8e01dca41002 1527 if (*optlen < sizeof(u8_t)) {
donatien 0:8e01dca41002 1528 err = EINVAL;
donatien 0:8e01dca41002 1529 }
donatien 0:8e01dca41002 1530 break;
donatien 0:8e01dca41002 1531 case IP_MULTICAST_IF:
donatien 0:8e01dca41002 1532 if (*optlen < sizeof(struct in_addr)) {
donatien 0:8e01dca41002 1533 err = EINVAL;
donatien 0:8e01dca41002 1534 }
donatien 0:8e01dca41002 1535 break;
donatien 0:8e01dca41002 1536 case IP_MULTICAST_LOOP:
donatien 0:8e01dca41002 1537 if (*optlen < sizeof(u8_t)) {
donatien 0:8e01dca41002 1538 err = EINVAL;
donatien 0:8e01dca41002 1539 }
donatien 0:8e01dca41002 1540 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
donatien 0:8e01dca41002 1541 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1542 }
donatien 0:8e01dca41002 1543 break;
donatien 0:8e01dca41002 1544 #endif /* LWIP_IGMP */
donatien 0:8e01dca41002 1545
donatien 0:8e01dca41002 1546 default:
donatien 0:8e01dca41002 1547 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1548 s, optname));
donatien 0:8e01dca41002 1549 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1550 } /* switch (optname) */
donatien 0:8e01dca41002 1551 break;
donatien 0:8e01dca41002 1552
donatien 0:8e01dca41002 1553 #if LWIP_TCP
donatien 0:8e01dca41002 1554 /* Level: IPPROTO_TCP */
donatien 0:8e01dca41002 1555 case IPPROTO_TCP:
donatien 0:8e01dca41002 1556 if (*optlen < sizeof(int)) {
donatien 0:8e01dca41002 1557 err = EINVAL;
donatien 0:8e01dca41002 1558 break;
donatien 0:8e01dca41002 1559 }
donatien 0:8e01dca41002 1560
donatien 0:8e01dca41002 1561 /* If this is no TCP socket, ignore any options. */
donatien 0:8e01dca41002 1562 if (sock->conn->type != NETCONN_TCP)
donatien 0:8e01dca41002 1563 return 0;
donatien 0:8e01dca41002 1564
donatien 0:8e01dca41002 1565 switch (optname) {
donatien 0:8e01dca41002 1566 case TCP_NODELAY:
donatien 0:8e01dca41002 1567 case TCP_KEEPALIVE:
donatien 0:8e01dca41002 1568 #if LWIP_TCP_KEEPALIVE
donatien 0:8e01dca41002 1569 case TCP_KEEPIDLE:
donatien 0:8e01dca41002 1570 case TCP_KEEPINTVL:
donatien 0:8e01dca41002 1571 case TCP_KEEPCNT:
donatien 0:8e01dca41002 1572 #endif /* LWIP_TCP_KEEPALIVE */
donatien 0:8e01dca41002 1573 break;
donatien 0:8e01dca41002 1574
donatien 0:8e01dca41002 1575 default:
donatien 0:8e01dca41002 1576 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1577 s, optname));
donatien 0:8e01dca41002 1578 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1579 } /* switch (optname) */
donatien 0:8e01dca41002 1580 break;
donatien 0:8e01dca41002 1581 #endif /* LWIP_TCP */
donatien 0:8e01dca41002 1582 #if LWIP_UDP && LWIP_UDPLITE
donatien 0:8e01dca41002 1583 /* Level: IPPROTO_UDPLITE */
donatien 0:8e01dca41002 1584 case IPPROTO_UDPLITE:
donatien 0:8e01dca41002 1585 if (*optlen < sizeof(int)) {
donatien 0:8e01dca41002 1586 err = EINVAL;
donatien 0:8e01dca41002 1587 break;
donatien 0:8e01dca41002 1588 }
donatien 0:8e01dca41002 1589
donatien 0:8e01dca41002 1590 /* If this is no UDP lite socket, ignore any options. */
donatien 0:8e01dca41002 1591 if (sock->conn->type != NETCONN_UDPLITE) {
donatien 0:8e01dca41002 1592 return 0;
donatien 0:8e01dca41002 1593 }
donatien 0:8e01dca41002 1594
donatien 0:8e01dca41002 1595 switch (optname) {
donatien 0:8e01dca41002 1596 case UDPLITE_SEND_CSCOV:
donatien 0:8e01dca41002 1597 case UDPLITE_RECV_CSCOV:
donatien 0:8e01dca41002 1598 break;
donatien 0:8e01dca41002 1599
donatien 0:8e01dca41002 1600 default:
donatien 0:8e01dca41002 1601 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1602 s, optname));
donatien 0:8e01dca41002 1603 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1604 } /* switch (optname) */
donatien 0:8e01dca41002 1605 break;
donatien 0:8e01dca41002 1606 #endif /* LWIP_UDP && LWIP_UDPLITE*/
donatien 0:8e01dca41002 1607 /* UNDEFINED LEVEL */
donatien 0:8e01dca41002 1608 default:
donatien 0:8e01dca41002 1609 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1610 s, level, optname));
donatien 0:8e01dca41002 1611 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1612 } /* switch */
donatien 0:8e01dca41002 1613
donatien 0:8e01dca41002 1614
donatien 0:8e01dca41002 1615 if (err != ERR_OK) {
donatien 0:8e01dca41002 1616 sock_set_errno(sock, err);
donatien 0:8e01dca41002 1617 return -1;
donatien 0:8e01dca41002 1618 }
donatien 0:8e01dca41002 1619
donatien 0:8e01dca41002 1620 /* Now do the actual option processing */
donatien 0:8e01dca41002 1621 data.sock = sock;
donatien 0:8e01dca41002 1622 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 1623 data.s = s;
donatien 0:8e01dca41002 1624 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 1625 data.level = level;
donatien 0:8e01dca41002 1626 data.optname = optname;
donatien 0:8e01dca41002 1627 data.optval = optval;
donatien 0:8e01dca41002 1628 data.optlen = optlen;
donatien 0:8e01dca41002 1629 data.err = err;
donatien 0:8e01dca41002 1630 tcpip_callback(lwip_getsockopt_internal, &data);
donatien 0:8e01dca41002 1631 sys_arch_sem_wait(&sock->conn->op_completed, 0);
donatien 0:8e01dca41002 1632 /* maybe lwip_getsockopt_internal has changed err */
donatien 0:8e01dca41002 1633 err = data.err;
donatien 0:8e01dca41002 1634
donatien 0:8e01dca41002 1635 sock_set_errno(sock, err);
donatien 0:8e01dca41002 1636 return err ? -1 : 0;
donatien 0:8e01dca41002 1637 }
donatien 0:8e01dca41002 1638
donatien 0:8e01dca41002 1639 static void
donatien 0:8e01dca41002 1640 lwip_getsockopt_internal(void *arg)
donatien 0:8e01dca41002 1641 {
donatien 0:8e01dca41002 1642 struct lwip_sock *sock;
donatien 0:8e01dca41002 1643 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 1644 int s;
donatien 0:8e01dca41002 1645 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 1646 int level, optname;
donatien 0:8e01dca41002 1647 void *optval;
donatien 0:8e01dca41002 1648 struct lwip_setgetsockopt_data *data;
donatien 0:8e01dca41002 1649
donatien 0:8e01dca41002 1650 LWIP_ASSERT("arg != NULL", arg != NULL);
donatien 0:8e01dca41002 1651
donatien 0:8e01dca41002 1652 data = (struct lwip_setgetsockopt_data*)arg;
donatien 0:8e01dca41002 1653 sock = data->sock;
donatien 0:8e01dca41002 1654 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 1655 s = data->s;
donatien 0:8e01dca41002 1656 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 1657 level = data->level;
donatien 0:8e01dca41002 1658 optname = data->optname;
donatien 0:8e01dca41002 1659 optval = data->optval;
donatien 0:8e01dca41002 1660
donatien 0:8e01dca41002 1661 switch (level) {
donatien 0:8e01dca41002 1662
donatien 0:8e01dca41002 1663 /* Level: SOL_SOCKET */
donatien 0:8e01dca41002 1664 case SOL_SOCKET:
donatien 0:8e01dca41002 1665 switch (optname) {
donatien 0:8e01dca41002 1666
donatien 0:8e01dca41002 1667 /* The option flags */
donatien 0:8e01dca41002 1668 case SO_ACCEPTCONN:
donatien 0:8e01dca41002 1669 case SO_BROADCAST:
donatien 0:8e01dca41002 1670 /* UNIMPL case SO_DEBUG: */
donatien 0:8e01dca41002 1671 /* UNIMPL case SO_DONTROUTE: */
donatien 0:8e01dca41002 1672 case SO_KEEPALIVE:
donatien 0:8e01dca41002 1673 /* UNIMPL case SO_OOBINCLUDE: */
donatien 0:8e01dca41002 1674 #if SO_REUSE
donatien 0:8e01dca41002 1675 case SO_REUSEADDR:
donatien 0:8e01dca41002 1676 case SO_REUSEPORT:
donatien 0:8e01dca41002 1677 #endif /* SO_REUSE */
donatien 0:8e01dca41002 1678 /*case SO_USELOOPBACK: UNIMPL */
donatien 0:8e01dca41002 1679 *(int*)optval = sock->conn->pcb.ip->so_options & optname;
donatien 0:8e01dca41002 1680 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
donatien 0:8e01dca41002 1681 s, optname, (*(int*)optval?"on":"off")));
donatien 0:8e01dca41002 1682 break;
donatien 0:8e01dca41002 1683
donatien 0:8e01dca41002 1684 case SO_TYPE:
donatien 0:8e01dca41002 1685 switch (NETCONNTYPE_GROUP(sock->conn->type)) {
donatien 0:8e01dca41002 1686 case NETCONN_RAW:
donatien 0:8e01dca41002 1687 *(int*)optval = SOCK_RAW;
donatien 0:8e01dca41002 1688 break;
donatien 0:8e01dca41002 1689 case NETCONN_TCP:
donatien 0:8e01dca41002 1690 *(int*)optval = SOCK_STREAM;
donatien 0:8e01dca41002 1691 break;
donatien 0:8e01dca41002 1692 case NETCONN_UDP:
donatien 0:8e01dca41002 1693 *(int*)optval = SOCK_DGRAM;
donatien 0:8e01dca41002 1694 break;
donatien 0:8e01dca41002 1695 default: /* unrecognized socket type */
donatien 0:8e01dca41002 1696 *(int*)optval = sock->conn->type;
donatien 0:8e01dca41002 1697 LWIP_DEBUGF(SOCKETS_DEBUG,
donatien 0:8e01dca41002 1698 ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
donatien 0:8e01dca41002 1699 s, *(int *)optval));
donatien 0:8e01dca41002 1700 } /* switch (sock->conn->type) */
donatien 0:8e01dca41002 1701 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
donatien 0:8e01dca41002 1702 s, *(int *)optval));
donatien 0:8e01dca41002 1703 break;
donatien 0:8e01dca41002 1704
donatien 0:8e01dca41002 1705 case SO_ERROR:
donatien 0:8e01dca41002 1706 /* only overwrite ERR_OK or tempoary errors */
donatien 0:8e01dca41002 1707 if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
donatien 0:8e01dca41002 1708 sock_set_errno(sock, err_to_errno(sock->conn->last_err));
donatien 0:8e01dca41002 1709 }
donatien 0:8e01dca41002 1710 *(int *)optval = sock->err;
donatien 0:8e01dca41002 1711 sock->err = 0;
donatien 0:8e01dca41002 1712 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
donatien 0:8e01dca41002 1713 s, *(int *)optval));
donatien 0:8e01dca41002 1714 break;
donatien 0:8e01dca41002 1715
donatien 0:8e01dca41002 1716 #if LWIP_SO_RCVTIMEO
donatien 0:8e01dca41002 1717 case SO_RCVTIMEO:
donatien 0:8e01dca41002 1718 *(int *)optval = netconn_get_recvtimeout(sock->conn);
donatien 0:8e01dca41002 1719 break;
donatien 0:8e01dca41002 1720 #endif /* LWIP_SO_RCVTIMEO */
donatien 0:8e01dca41002 1721 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 1722 case SO_RCVBUF:
donatien 0:8e01dca41002 1723 *(int *)optval = netconn_get_recvbufsize(sock->conn);
donatien 0:8e01dca41002 1724 break;
donatien 0:8e01dca41002 1725 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 1726 #if LWIP_UDP
donatien 0:8e01dca41002 1727 case SO_NO_CHECK:
donatien 0:8e01dca41002 1728 *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
donatien 0:8e01dca41002 1729 break;
donatien 0:8e01dca41002 1730 #endif /* LWIP_UDP*/
donatien 0:8e01dca41002 1731 default:
donatien 0:8e01dca41002 1732 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 1733 break;
donatien 0:8e01dca41002 1734 } /* switch (optname) */
donatien 0:8e01dca41002 1735 break;
donatien 0:8e01dca41002 1736
donatien 0:8e01dca41002 1737 /* Level: IPPROTO_IP */
donatien 0:8e01dca41002 1738 case IPPROTO_IP:
donatien 0:8e01dca41002 1739 switch (optname) {
donatien 0:8e01dca41002 1740 case IP_TTL:
donatien 0:8e01dca41002 1741 *(int*)optval = sock->conn->pcb.ip->ttl;
donatien 0:8e01dca41002 1742 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
donatien 0:8e01dca41002 1743 s, *(int *)optval));
donatien 0:8e01dca41002 1744 break;
donatien 0:8e01dca41002 1745 case IP_TOS:
donatien 0:8e01dca41002 1746 *(int*)optval = sock->conn->pcb.ip->tos;
donatien 0:8e01dca41002 1747 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
donatien 0:8e01dca41002 1748 s, *(int *)optval));
donatien 0:8e01dca41002 1749 break;
donatien 0:8e01dca41002 1750 #if LWIP_IGMP
donatien 0:8e01dca41002 1751 case IP_MULTICAST_TTL:
donatien 0:8e01dca41002 1752 *(u8_t*)optval = sock->conn->pcb.ip->ttl;
donatien 0:8e01dca41002 1753 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
donatien 0:8e01dca41002 1754 s, *(int *)optval));
donatien 0:8e01dca41002 1755 break;
donatien 0:8e01dca41002 1756 case IP_MULTICAST_IF:
donatien 0:8e01dca41002 1757 inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
donatien 0:8e01dca41002 1758 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
donatien 0:8e01dca41002 1759 s, *(u32_t *)optval));
donatien 0:8e01dca41002 1760 break;
donatien 0:8e01dca41002 1761 case IP_MULTICAST_LOOP:
donatien 0:8e01dca41002 1762 if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
donatien 0:8e01dca41002 1763 *(u8_t*)optval = 1;
donatien 0:8e01dca41002 1764 } else {
donatien 0:8e01dca41002 1765 *(u8_t*)optval = 0;
donatien 0:8e01dca41002 1766 }
donatien 0:8e01dca41002 1767 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
donatien 0:8e01dca41002 1768 s, *(int *)optval));
donatien 0:8e01dca41002 1769 break;
donatien 0:8e01dca41002 1770 #endif /* LWIP_IGMP */
donatien 0:8e01dca41002 1771 default:
donatien 0:8e01dca41002 1772 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 1773 break;
donatien 0:8e01dca41002 1774 } /* switch (optname) */
donatien 0:8e01dca41002 1775 break;
donatien 0:8e01dca41002 1776
donatien 0:8e01dca41002 1777 #if LWIP_TCP
donatien 0:8e01dca41002 1778 /* Level: IPPROTO_TCP */
donatien 0:8e01dca41002 1779 case IPPROTO_TCP:
donatien 0:8e01dca41002 1780 switch (optname) {
donatien 0:8e01dca41002 1781 case TCP_NODELAY:
donatien 0:8e01dca41002 1782 *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
donatien 0:8e01dca41002 1783 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
donatien 0:8e01dca41002 1784 s, (*(int*)optval)?"on":"off") );
donatien 0:8e01dca41002 1785 break;
donatien 0:8e01dca41002 1786 case TCP_KEEPALIVE:
donatien 0:8e01dca41002 1787 *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
donatien 0:8e01dca41002 1788 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
donatien 0:8e01dca41002 1789 s, *(int *)optval));
donatien 0:8e01dca41002 1790 break;
donatien 0:8e01dca41002 1791
donatien 0:8e01dca41002 1792 #if LWIP_TCP_KEEPALIVE
donatien 0:8e01dca41002 1793 case TCP_KEEPIDLE:
donatien 0:8e01dca41002 1794 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
donatien 0:8e01dca41002 1795 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
donatien 0:8e01dca41002 1796 s, *(int *)optval));
donatien 0:8e01dca41002 1797 break;
donatien 0:8e01dca41002 1798 case TCP_KEEPINTVL:
donatien 0:8e01dca41002 1799 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
donatien 0:8e01dca41002 1800 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
donatien 0:8e01dca41002 1801 s, *(int *)optval));
donatien 0:8e01dca41002 1802 break;
donatien 0:8e01dca41002 1803 case TCP_KEEPCNT:
donatien 0:8e01dca41002 1804 *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
donatien 0:8e01dca41002 1805 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
donatien 0:8e01dca41002 1806 s, *(int *)optval));
donatien 0:8e01dca41002 1807 break;
donatien 0:8e01dca41002 1808 #endif /* LWIP_TCP_KEEPALIVE */
donatien 0:8e01dca41002 1809 default:
donatien 0:8e01dca41002 1810 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 1811 break;
donatien 0:8e01dca41002 1812 } /* switch (optname) */
donatien 0:8e01dca41002 1813 break;
donatien 0:8e01dca41002 1814 #endif /* LWIP_TCP */
donatien 0:8e01dca41002 1815 #if LWIP_UDP && LWIP_UDPLITE
donatien 0:8e01dca41002 1816 /* Level: IPPROTO_UDPLITE */
donatien 0:8e01dca41002 1817 case IPPROTO_UDPLITE:
donatien 0:8e01dca41002 1818 switch (optname) {
donatien 0:8e01dca41002 1819 case UDPLITE_SEND_CSCOV:
donatien 0:8e01dca41002 1820 *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
donatien 0:8e01dca41002 1821 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
donatien 0:8e01dca41002 1822 s, (*(int*)optval)) );
donatien 0:8e01dca41002 1823 break;
donatien 0:8e01dca41002 1824 case UDPLITE_RECV_CSCOV:
donatien 0:8e01dca41002 1825 *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
donatien 0:8e01dca41002 1826 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
donatien 0:8e01dca41002 1827 s, (*(int*)optval)) );
donatien 0:8e01dca41002 1828 break;
donatien 0:8e01dca41002 1829 default:
donatien 0:8e01dca41002 1830 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 1831 break;
donatien 0:8e01dca41002 1832 } /* switch (optname) */
donatien 0:8e01dca41002 1833 break;
donatien 0:8e01dca41002 1834 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 1835 default:
donatien 0:8e01dca41002 1836 LWIP_ASSERT("unhandled level", 0);
donatien 0:8e01dca41002 1837 break;
donatien 0:8e01dca41002 1838 } /* switch (level) */
donatien 0:8e01dca41002 1839 sys_sem_signal(&sock->conn->op_completed);
donatien 0:8e01dca41002 1840 }
donatien 0:8e01dca41002 1841
donatien 0:8e01dca41002 1842 int
donatien 0:8e01dca41002 1843 lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
donatien 0:8e01dca41002 1844 {
donatien 0:8e01dca41002 1845 struct lwip_sock *sock = get_socket(s);
donatien 0:8e01dca41002 1846 err_t err = ERR_OK;
donatien 0:8e01dca41002 1847 struct lwip_setgetsockopt_data data;
donatien 0:8e01dca41002 1848
donatien 0:8e01dca41002 1849 if (!sock) {
donatien 0:8e01dca41002 1850 return -1;
donatien 0:8e01dca41002 1851 }
donatien 0:8e01dca41002 1852
donatien 0:8e01dca41002 1853 if (NULL == optval) {
donatien 0:8e01dca41002 1854 sock_set_errno(sock, EFAULT);
donatien 0:8e01dca41002 1855 return -1;
donatien 0:8e01dca41002 1856 }
donatien 0:8e01dca41002 1857
donatien 0:8e01dca41002 1858 /* Do length and type checks for the various options first, to keep it readable. */
donatien 0:8e01dca41002 1859 switch (level) {
donatien 0:8e01dca41002 1860
donatien 0:8e01dca41002 1861 /* Level: SOL_SOCKET */
donatien 0:8e01dca41002 1862 case SOL_SOCKET:
donatien 0:8e01dca41002 1863 switch (optname) {
donatien 0:8e01dca41002 1864
donatien 0:8e01dca41002 1865 case SO_BROADCAST:
donatien 0:8e01dca41002 1866 /* UNIMPL case SO_DEBUG: */
donatien 0:8e01dca41002 1867 /* UNIMPL case SO_DONTROUTE: */
donatien 0:8e01dca41002 1868 case SO_KEEPALIVE:
donatien 0:8e01dca41002 1869 /* UNIMPL case case SO_CONTIMEO: */
donatien 0:8e01dca41002 1870 /* UNIMPL case case SO_SNDTIMEO: */
donatien 0:8e01dca41002 1871 #if LWIP_SO_RCVTIMEO
donatien 0:8e01dca41002 1872 case SO_RCVTIMEO:
donatien 0:8e01dca41002 1873 #endif /* LWIP_SO_RCVTIMEO */
donatien 0:8e01dca41002 1874 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 1875 case SO_RCVBUF:
donatien 0:8e01dca41002 1876 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 1877 /* UNIMPL case SO_OOBINLINE: */
donatien 0:8e01dca41002 1878 /* UNIMPL case SO_SNDBUF: */
donatien 0:8e01dca41002 1879 /* UNIMPL case SO_RCVLOWAT: */
donatien 0:8e01dca41002 1880 /* UNIMPL case SO_SNDLOWAT: */
donatien 0:8e01dca41002 1881 #if SO_REUSE
donatien 0:8e01dca41002 1882 case SO_REUSEADDR:
donatien 0:8e01dca41002 1883 case SO_REUSEPORT:
donatien 0:8e01dca41002 1884 #endif /* SO_REUSE */
donatien 0:8e01dca41002 1885 /* UNIMPL case SO_USELOOPBACK: */
donatien 0:8e01dca41002 1886 if (optlen < sizeof(int)) {
donatien 0:8e01dca41002 1887 err = EINVAL;
donatien 0:8e01dca41002 1888 }
donatien 0:8e01dca41002 1889 break;
donatien 0:8e01dca41002 1890 case SO_NO_CHECK:
donatien 0:8e01dca41002 1891 if (optlen < sizeof(int)) {
donatien 0:8e01dca41002 1892 err = EINVAL;
donatien 0:8e01dca41002 1893 }
donatien 0:8e01dca41002 1894 #if LWIP_UDP
donatien 0:8e01dca41002 1895 if ((sock->conn->type != NETCONN_UDP) ||
donatien 0:8e01dca41002 1896 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
donatien 0:8e01dca41002 1897 /* this flag is only available for UDP, not for UDP lite */
donatien 0:8e01dca41002 1898 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1899 }
donatien 0:8e01dca41002 1900 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 1901 break;
donatien 0:8e01dca41002 1902 default:
donatien 0:8e01dca41002 1903 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1904 s, optname));
donatien 0:8e01dca41002 1905 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1906 } /* switch (optname) */
donatien 0:8e01dca41002 1907 break;
donatien 0:8e01dca41002 1908
donatien 0:8e01dca41002 1909 /* Level: IPPROTO_IP */
donatien 0:8e01dca41002 1910 case IPPROTO_IP:
donatien 0:8e01dca41002 1911 switch (optname) {
donatien 0:8e01dca41002 1912 /* UNIMPL case IP_HDRINCL: */
donatien 0:8e01dca41002 1913 /* UNIMPL case IP_RCVDSTADDR: */
donatien 0:8e01dca41002 1914 /* UNIMPL case IP_RCVIF: */
donatien 0:8e01dca41002 1915 case IP_TTL:
donatien 0:8e01dca41002 1916 case IP_TOS:
donatien 0:8e01dca41002 1917 if (optlen < sizeof(int)) {
donatien 0:8e01dca41002 1918 err = EINVAL;
donatien 0:8e01dca41002 1919 }
donatien 0:8e01dca41002 1920 break;
donatien 0:8e01dca41002 1921 #if LWIP_IGMP
donatien 0:8e01dca41002 1922 case IP_MULTICAST_TTL:
donatien 0:8e01dca41002 1923 if (optlen < sizeof(u8_t)) {
donatien 0:8e01dca41002 1924 err = EINVAL;
donatien 0:8e01dca41002 1925 }
donatien 0:8e01dca41002 1926 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
donatien 0:8e01dca41002 1927 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1928 }
donatien 0:8e01dca41002 1929 break;
donatien 0:8e01dca41002 1930 case IP_MULTICAST_IF:
donatien 0:8e01dca41002 1931 if (optlen < sizeof(struct in_addr)) {
donatien 0:8e01dca41002 1932 err = EINVAL;
donatien 0:8e01dca41002 1933 }
donatien 0:8e01dca41002 1934 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
donatien 0:8e01dca41002 1935 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1936 }
donatien 0:8e01dca41002 1937 break;
donatien 0:8e01dca41002 1938 case IP_MULTICAST_LOOP:
donatien 0:8e01dca41002 1939 if (optlen < sizeof(u8_t)) {
donatien 0:8e01dca41002 1940 err = EINVAL;
donatien 0:8e01dca41002 1941 }
donatien 0:8e01dca41002 1942 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
donatien 0:8e01dca41002 1943 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1944 }
donatien 0:8e01dca41002 1945 break;
donatien 0:8e01dca41002 1946 case IP_ADD_MEMBERSHIP:
donatien 0:8e01dca41002 1947 case IP_DROP_MEMBERSHIP:
donatien 0:8e01dca41002 1948 if (optlen < sizeof(struct ip_mreq)) {
donatien 0:8e01dca41002 1949 err = EINVAL;
donatien 0:8e01dca41002 1950 }
donatien 0:8e01dca41002 1951 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
donatien 0:8e01dca41002 1952 err = EAFNOSUPPORT;
donatien 0:8e01dca41002 1953 }
donatien 0:8e01dca41002 1954 break;
donatien 0:8e01dca41002 1955 #endif /* LWIP_IGMP */
donatien 0:8e01dca41002 1956 default:
donatien 0:8e01dca41002 1957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1958 s, optname));
donatien 0:8e01dca41002 1959 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1960 } /* switch (optname) */
donatien 0:8e01dca41002 1961 break;
donatien 0:8e01dca41002 1962
donatien 0:8e01dca41002 1963 #if LWIP_TCP
donatien 0:8e01dca41002 1964 /* Level: IPPROTO_TCP */
donatien 0:8e01dca41002 1965 case IPPROTO_TCP:
donatien 0:8e01dca41002 1966 if (optlen < sizeof(int)) {
donatien 0:8e01dca41002 1967 err = EINVAL;
donatien 0:8e01dca41002 1968 break;
donatien 0:8e01dca41002 1969 }
donatien 0:8e01dca41002 1970
donatien 0:8e01dca41002 1971 /* If this is no TCP socket, ignore any options. */
donatien 0:8e01dca41002 1972 if (sock->conn->type != NETCONN_TCP)
donatien 0:8e01dca41002 1973 return 0;
donatien 0:8e01dca41002 1974
donatien 0:8e01dca41002 1975 switch (optname) {
donatien 0:8e01dca41002 1976 case TCP_NODELAY:
donatien 0:8e01dca41002 1977 case TCP_KEEPALIVE:
donatien 0:8e01dca41002 1978 #if LWIP_TCP_KEEPALIVE
donatien 0:8e01dca41002 1979 case TCP_KEEPIDLE:
donatien 0:8e01dca41002 1980 case TCP_KEEPINTVL:
donatien 0:8e01dca41002 1981 case TCP_KEEPCNT:
donatien 0:8e01dca41002 1982 #endif /* LWIP_TCP_KEEPALIVE */
donatien 0:8e01dca41002 1983 break;
donatien 0:8e01dca41002 1984
donatien 0:8e01dca41002 1985 default:
donatien 0:8e01dca41002 1986 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 1987 s, optname));
donatien 0:8e01dca41002 1988 err = ENOPROTOOPT;
donatien 0:8e01dca41002 1989 } /* switch (optname) */
donatien 0:8e01dca41002 1990 break;
donatien 0:8e01dca41002 1991 #endif /* LWIP_TCP */
donatien 0:8e01dca41002 1992 #if LWIP_UDP && LWIP_UDPLITE
donatien 0:8e01dca41002 1993 /* Level: IPPROTO_UDPLITE */
donatien 0:8e01dca41002 1994 case IPPROTO_UDPLITE:
donatien 0:8e01dca41002 1995 if (optlen < sizeof(int)) {
donatien 0:8e01dca41002 1996 err = EINVAL;
donatien 0:8e01dca41002 1997 break;
donatien 0:8e01dca41002 1998 }
donatien 0:8e01dca41002 1999
donatien 0:8e01dca41002 2000 /* If this is no UDP lite socket, ignore any options. */
donatien 0:8e01dca41002 2001 if (sock->conn->type != NETCONN_UDPLITE)
donatien 0:8e01dca41002 2002 return 0;
donatien 0:8e01dca41002 2003
donatien 0:8e01dca41002 2004 switch (optname) {
donatien 0:8e01dca41002 2005 case UDPLITE_SEND_CSCOV:
donatien 0:8e01dca41002 2006 case UDPLITE_RECV_CSCOV:
donatien 0:8e01dca41002 2007 break;
donatien 0:8e01dca41002 2008
donatien 0:8e01dca41002 2009 default:
donatien 0:8e01dca41002 2010 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 2011 s, optname));
donatien 0:8e01dca41002 2012 err = ENOPROTOOPT;
donatien 0:8e01dca41002 2013 } /* switch (optname) */
donatien 0:8e01dca41002 2014 break;
donatien 0:8e01dca41002 2015 #endif /* LWIP_UDP && LWIP_UDPLITE */
donatien 0:8e01dca41002 2016 /* UNDEFINED LEVEL */
donatien 0:8e01dca41002 2017 default:
donatien 0:8e01dca41002 2018 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
donatien 0:8e01dca41002 2019 s, level, optname));
donatien 0:8e01dca41002 2020 err = ENOPROTOOPT;
donatien 0:8e01dca41002 2021 } /* switch (level) */
donatien 0:8e01dca41002 2022
donatien 0:8e01dca41002 2023
donatien 0:8e01dca41002 2024 if (err != ERR_OK) {
donatien 0:8e01dca41002 2025 sock_set_errno(sock, err);
donatien 0:8e01dca41002 2026 return -1;
donatien 0:8e01dca41002 2027 }
donatien 0:8e01dca41002 2028
donatien 0:8e01dca41002 2029
donatien 0:8e01dca41002 2030 /* Now do the actual option processing */
donatien 0:8e01dca41002 2031 data.sock = sock;
donatien 0:8e01dca41002 2032 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 2033 data.s = s;
donatien 0:8e01dca41002 2034 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 2035 data.level = level;
donatien 0:8e01dca41002 2036 data.optname = optname;
donatien 0:8e01dca41002 2037 data.optval = (void*)optval;
donatien 0:8e01dca41002 2038 data.optlen = &optlen;
donatien 0:8e01dca41002 2039 data.err = err;
donatien 0:8e01dca41002 2040 tcpip_callback(lwip_setsockopt_internal, &data);
donatien 0:8e01dca41002 2041 sys_arch_sem_wait(&sock->conn->op_completed, 0);
donatien 0:8e01dca41002 2042 /* maybe lwip_setsockopt_internal has changed err */
donatien 0:8e01dca41002 2043 err = data.err;
donatien 0:8e01dca41002 2044
donatien 0:8e01dca41002 2045 sock_set_errno(sock, err);
donatien 0:8e01dca41002 2046 return err ? -1 : 0;
donatien 0:8e01dca41002 2047 }
donatien 0:8e01dca41002 2048
donatien 0:8e01dca41002 2049 static void
donatien 0:8e01dca41002 2050 lwip_setsockopt_internal(void *arg)
donatien 0:8e01dca41002 2051 {
donatien 0:8e01dca41002 2052 struct lwip_sock *sock;
donatien 0:8e01dca41002 2053 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 2054 int s;
donatien 0:8e01dca41002 2055 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 2056 int level, optname;
donatien 0:8e01dca41002 2057 const void *optval;
donatien 0:8e01dca41002 2058 struct lwip_setgetsockopt_data *data;
donatien 0:8e01dca41002 2059
donatien 0:8e01dca41002 2060 LWIP_ASSERT("arg != NULL", arg != NULL);
donatien 0:8e01dca41002 2061
donatien 0:8e01dca41002 2062 data = (struct lwip_setgetsockopt_data*)arg;
donatien 0:8e01dca41002 2063 sock = data->sock;
donatien 0:8e01dca41002 2064 #ifdef LWIP_DEBUG
donatien 0:8e01dca41002 2065 s = data->s;
donatien 0:8e01dca41002 2066 #endif /* LWIP_DEBUG */
donatien 0:8e01dca41002 2067 level = data->level;
donatien 0:8e01dca41002 2068 optname = data->optname;
donatien 0:8e01dca41002 2069 optval = data->optval;
donatien 0:8e01dca41002 2070
donatien 0:8e01dca41002 2071 switch (level) {
donatien 0:8e01dca41002 2072
donatien 0:8e01dca41002 2073 /* Level: SOL_SOCKET */
donatien 0:8e01dca41002 2074 case SOL_SOCKET:
donatien 0:8e01dca41002 2075 switch (optname) {
donatien 0:8e01dca41002 2076
donatien 0:8e01dca41002 2077 /* The option flags */
donatien 0:8e01dca41002 2078 case SO_BROADCAST:
donatien 0:8e01dca41002 2079 /* UNIMPL case SO_DEBUG: */
donatien 0:8e01dca41002 2080 /* UNIMPL case SO_DONTROUTE: */
donatien 0:8e01dca41002 2081 case SO_KEEPALIVE:
donatien 0:8e01dca41002 2082 /* UNIMPL case SO_OOBINCLUDE: */
donatien 0:8e01dca41002 2083 #if SO_REUSE
donatien 0:8e01dca41002 2084 case SO_REUSEADDR:
donatien 0:8e01dca41002 2085 case SO_REUSEPORT:
donatien 0:8e01dca41002 2086 #endif /* SO_REUSE */
donatien 0:8e01dca41002 2087 /* UNIMPL case SO_USELOOPBACK: */
donatien 0:8e01dca41002 2088 if (*(int*)optval) {
donatien 0:8e01dca41002 2089 sock->conn->pcb.ip->so_options |= optname;
donatien 0:8e01dca41002 2090 } else {
donatien 0:8e01dca41002 2091 sock->conn->pcb.ip->so_options &= ~optname;
donatien 0:8e01dca41002 2092 }
donatien 0:8e01dca41002 2093 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
donatien 0:8e01dca41002 2094 s, optname, (*(int*)optval?"on":"off")));
donatien 0:8e01dca41002 2095 break;
donatien 0:8e01dca41002 2096 #if LWIP_SO_RCVTIMEO
donatien 0:8e01dca41002 2097 case SO_RCVTIMEO:
donatien 0:8e01dca41002 2098 netconn_set_recvtimeout(sock->conn, *(int*)optval);
donatien 0:8e01dca41002 2099 break;
donatien 0:8e01dca41002 2100 #endif /* LWIP_SO_RCVTIMEO */
donatien 0:8e01dca41002 2101 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 2102 case SO_RCVBUF:
donatien 0:8e01dca41002 2103 netconn_set_recvbufsize(sock->conn, *(int*)optval);
donatien 0:8e01dca41002 2104 break;
donatien 0:8e01dca41002 2105 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 2106 #if LWIP_UDP
donatien 0:8e01dca41002 2107 case SO_NO_CHECK:
donatien 0:8e01dca41002 2108 if (*(int*)optval) {
donatien 0:8e01dca41002 2109 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
donatien 0:8e01dca41002 2110 } else {
donatien 0:8e01dca41002 2111 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
donatien 0:8e01dca41002 2112 }
donatien 0:8e01dca41002 2113 break;
donatien 0:8e01dca41002 2114 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 2115 default:
donatien 0:8e01dca41002 2116 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 2117 break;
donatien 0:8e01dca41002 2118 } /* switch (optname) */
donatien 0:8e01dca41002 2119 break;
donatien 0:8e01dca41002 2120
donatien 0:8e01dca41002 2121 /* Level: IPPROTO_IP */
donatien 0:8e01dca41002 2122 case IPPROTO_IP:
donatien 0:8e01dca41002 2123 switch (optname) {
donatien 0:8e01dca41002 2124 case IP_TTL:
donatien 0:8e01dca41002 2125 sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
donatien 0:8e01dca41002 2126 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
donatien 0:8e01dca41002 2127 s, sock->conn->pcb.ip->ttl));
donatien 0:8e01dca41002 2128 break;
donatien 0:8e01dca41002 2129 case IP_TOS:
donatien 0:8e01dca41002 2130 sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
donatien 0:8e01dca41002 2131 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
donatien 0:8e01dca41002 2132 s, sock->conn->pcb.ip->tos));
donatien 0:8e01dca41002 2133 break;
donatien 0:8e01dca41002 2134 #if LWIP_IGMP
donatien 0:8e01dca41002 2135 case IP_MULTICAST_TTL:
donatien 0:8e01dca41002 2136 sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
donatien 0:8e01dca41002 2137 break;
donatien 0:8e01dca41002 2138 case IP_MULTICAST_IF:
donatien 0:8e01dca41002 2139 inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
donatien 0:8e01dca41002 2140 break;
donatien 0:8e01dca41002 2141 case IP_MULTICAST_LOOP:
donatien 0:8e01dca41002 2142 if (*(u8_t*)optval) {
donatien 0:8e01dca41002 2143 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
donatien 0:8e01dca41002 2144 } else {
donatien 0:8e01dca41002 2145 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
donatien 0:8e01dca41002 2146 }
donatien 0:8e01dca41002 2147 break;
donatien 0:8e01dca41002 2148 case IP_ADD_MEMBERSHIP:
donatien 0:8e01dca41002 2149 case IP_DROP_MEMBERSHIP:
donatien 0:8e01dca41002 2150 {
donatien 0:8e01dca41002 2151 /* If this is a TCP or a RAW socket, ignore these options. */
donatien 0:8e01dca41002 2152 struct ip_mreq *imr = (struct ip_mreq *)optval;
donatien 0:8e01dca41002 2153 ip_addr_t if_addr;
donatien 0:8e01dca41002 2154 ip_addr_t multi_addr;
donatien 0:8e01dca41002 2155 inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
donatien 0:8e01dca41002 2156 inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
donatien 0:8e01dca41002 2157 if(optname == IP_ADD_MEMBERSHIP){
donatien 0:8e01dca41002 2158 data->err = igmp_joingroup(&if_addr, &multi_addr);
donatien 0:8e01dca41002 2159 } else {
donatien 0:8e01dca41002 2160 data->err = igmp_leavegroup(&if_addr, &multi_addr);
donatien 0:8e01dca41002 2161 }
donatien 0:8e01dca41002 2162 if(data->err != ERR_OK) {
donatien 0:8e01dca41002 2163 data->err = EADDRNOTAVAIL;
donatien 0:8e01dca41002 2164 }
donatien 0:8e01dca41002 2165 }
donatien 0:8e01dca41002 2166 break;
donatien 0:8e01dca41002 2167 #endif /* LWIP_IGMP */
donatien 0:8e01dca41002 2168 default:
donatien 0:8e01dca41002 2169 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 2170 break;
donatien 0:8e01dca41002 2171 } /* switch (optname) */
donatien 0:8e01dca41002 2172 break;
donatien 0:8e01dca41002 2173
donatien 0:8e01dca41002 2174 #if LWIP_TCP
donatien 0:8e01dca41002 2175 /* Level: IPPROTO_TCP */
donatien 0:8e01dca41002 2176 case IPPROTO_TCP:
donatien 0:8e01dca41002 2177 switch (optname) {
donatien 0:8e01dca41002 2178 case TCP_NODELAY:
donatien 0:8e01dca41002 2179 if (*(int*)optval) {
donatien 0:8e01dca41002 2180 tcp_nagle_disable(sock->conn->pcb.tcp);
donatien 0:8e01dca41002 2181 } else {
donatien 0:8e01dca41002 2182 tcp_nagle_enable(sock->conn->pcb.tcp);
donatien 0:8e01dca41002 2183 }
donatien 0:8e01dca41002 2184 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
donatien 0:8e01dca41002 2185 s, (*(int *)optval)?"on":"off") );
donatien 0:8e01dca41002 2186 break;
donatien 0:8e01dca41002 2187 case TCP_KEEPALIVE:
donatien 0:8e01dca41002 2188 sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
donatien 0:8e01dca41002 2189 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
donatien 0:8e01dca41002 2190 s, sock->conn->pcb.tcp->keep_idle));
donatien 0:8e01dca41002 2191 break;
donatien 0:8e01dca41002 2192
donatien 0:8e01dca41002 2193 #if LWIP_TCP_KEEPALIVE
donatien 0:8e01dca41002 2194 case TCP_KEEPIDLE:
donatien 0:8e01dca41002 2195 sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
donatien 0:8e01dca41002 2196 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
donatien 0:8e01dca41002 2197 s, sock->conn->pcb.tcp->keep_idle));
donatien 0:8e01dca41002 2198 break;
donatien 0:8e01dca41002 2199 case TCP_KEEPINTVL:
donatien 0:8e01dca41002 2200 sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
donatien 0:8e01dca41002 2201 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
donatien 0:8e01dca41002 2202 s, sock->conn->pcb.tcp->keep_intvl));
donatien 0:8e01dca41002 2203 break;
donatien 0:8e01dca41002 2204 case TCP_KEEPCNT:
donatien 0:8e01dca41002 2205 sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
donatien 0:8e01dca41002 2206 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
donatien 0:8e01dca41002 2207 s, sock->conn->pcb.tcp->keep_cnt));
donatien 0:8e01dca41002 2208 break;
donatien 0:8e01dca41002 2209 #endif /* LWIP_TCP_KEEPALIVE */
donatien 0:8e01dca41002 2210 default:
donatien 0:8e01dca41002 2211 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 2212 break;
donatien 0:8e01dca41002 2213 } /* switch (optname) */
donatien 0:8e01dca41002 2214 break;
donatien 0:8e01dca41002 2215 #endif /* LWIP_TCP*/
donatien 0:8e01dca41002 2216 #if LWIP_UDP && LWIP_UDPLITE
donatien 0:8e01dca41002 2217 /* Level: IPPROTO_UDPLITE */
donatien 0:8e01dca41002 2218 case IPPROTO_UDPLITE:
donatien 0:8e01dca41002 2219 switch (optname) {
donatien 0:8e01dca41002 2220 case UDPLITE_SEND_CSCOV:
donatien 0:8e01dca41002 2221 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
donatien 0:8e01dca41002 2222 /* don't allow illegal values! */
donatien 0:8e01dca41002 2223 sock->conn->pcb.udp->chksum_len_tx = 8;
donatien 0:8e01dca41002 2224 } else {
donatien 0:8e01dca41002 2225 sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
donatien 0:8e01dca41002 2226 }
donatien 0:8e01dca41002 2227 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
donatien 0:8e01dca41002 2228 s, (*(int*)optval)) );
donatien 0:8e01dca41002 2229 break;
donatien 0:8e01dca41002 2230 case UDPLITE_RECV_CSCOV:
donatien 0:8e01dca41002 2231 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
donatien 0:8e01dca41002 2232 /* don't allow illegal values! */
donatien 0:8e01dca41002 2233 sock->conn->pcb.udp->chksum_len_rx = 8;
donatien 0:8e01dca41002 2234 } else {
donatien 0:8e01dca41002 2235 sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
donatien 0:8e01dca41002 2236 }
donatien 0:8e01dca41002 2237 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
donatien 0:8e01dca41002 2238 s, (*(int*)optval)) );
donatien 0:8e01dca41002 2239 break;
donatien 0:8e01dca41002 2240 default:
donatien 0:8e01dca41002 2241 LWIP_ASSERT("unhandled optname", 0);
donatien 0:8e01dca41002 2242 break;
donatien 0:8e01dca41002 2243 } /* switch (optname) */
donatien 0:8e01dca41002 2244 break;
donatien 0:8e01dca41002 2245 #endif /* LWIP_UDP */
donatien 0:8e01dca41002 2246 default:
donatien 0:8e01dca41002 2247 LWIP_ASSERT("unhandled level", 0);
donatien 0:8e01dca41002 2248 break;
donatien 0:8e01dca41002 2249 } /* switch (level) */
donatien 0:8e01dca41002 2250 sys_sem_signal(&sock->conn->op_completed);
donatien 0:8e01dca41002 2251 }
donatien 0:8e01dca41002 2252
donatien 0:8e01dca41002 2253 int
donatien 0:8e01dca41002 2254 lwip_ioctl(int s, long cmd, void *argp)
donatien 0:8e01dca41002 2255 {
donatien 0:8e01dca41002 2256 struct lwip_sock *sock = get_socket(s);
donatien 0:8e01dca41002 2257 u8_t val;
donatien 0:8e01dca41002 2258 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 2259 u16_t buflen = 0;
donatien 0:8e01dca41002 2260 s16_t recv_avail;
donatien 0:8e01dca41002 2261 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 2262
donatien 0:8e01dca41002 2263 if (!sock) {
donatien 0:8e01dca41002 2264 return -1;
donatien 0:8e01dca41002 2265 }
donatien 0:8e01dca41002 2266
donatien 0:8e01dca41002 2267 switch (cmd) {
donatien 0:8e01dca41002 2268 #if LWIP_SO_RCVBUF
donatien 0:8e01dca41002 2269 case FIONREAD:
donatien 0:8e01dca41002 2270 if (!argp) {
donatien 0:8e01dca41002 2271 sock_set_errno(sock, EINVAL);
donatien 0:8e01dca41002 2272 return -1;
donatien 0:8e01dca41002 2273 }
donatien 0:8e01dca41002 2274
donatien 0:8e01dca41002 2275 SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
donatien 0:8e01dca41002 2276 if (recv_avail < 0) {
donatien 0:8e01dca41002 2277 recv_avail = 0;
donatien 0:8e01dca41002 2278 }
donatien 0:8e01dca41002 2279 *((u16_t*)argp) = (u16_t)recv_avail;
donatien 0:8e01dca41002 2280
donatien 0:8e01dca41002 2281 /* Check if there is data left from the last recv operation. /maq 041215 */
donatien 0:8e01dca41002 2282 if (sock->lastdata) {
donatien 0:8e01dca41002 2283 struct pbuf *p = (struct pbuf *)sock->lastdata;
donatien 0:8e01dca41002 2284 if (netconn_type(sock->conn) != NETCONN_TCP) {
donatien 0:8e01dca41002 2285 p = ((struct netbuf *)p)->p;
donatien 0:8e01dca41002 2286 }
donatien 0:8e01dca41002 2287 buflen = p->tot_len;
donatien 0:8e01dca41002 2288 buflen -= sock->lastoffset;
donatien 0:8e01dca41002 2289
donatien 0:8e01dca41002 2290 *((u16_t*)argp) += buflen;
donatien 0:8e01dca41002 2291 }
donatien 0:8e01dca41002 2292
donatien 0:8e01dca41002 2293 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
donatien 0:8e01dca41002 2294 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 2295 return 0;
donatien 0:8e01dca41002 2296 #endif /* LWIP_SO_RCVBUF */
donatien 0:8e01dca41002 2297
donatien 0:8e01dca41002 2298 case FIONBIO:
donatien 0:8e01dca41002 2299 val = 0;
donatien 0:8e01dca41002 2300 if (argp && *(u32_t*)argp) {
donatien 0:8e01dca41002 2301 val = 1;
donatien 0:8e01dca41002 2302 }
donatien 0:8e01dca41002 2303 netconn_set_nonblocking(sock->conn, val);
donatien 0:8e01dca41002 2304 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
donatien 0:8e01dca41002 2305 sock_set_errno(sock, 0);
donatien 0:8e01dca41002 2306 return 0;
donatien 0:8e01dca41002 2307
donatien 0:8e01dca41002 2308 default:
donatien 0:8e01dca41002 2309 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
donatien 0:8e01dca41002 2310 sock_set_errno(sock, ENOSYS); /* not yet implemented */
donatien 0:8e01dca41002 2311 return -1;
donatien 0:8e01dca41002 2312 } /* switch (cmd) */
donatien 0:8e01dca41002 2313 }
donatien 0:8e01dca41002 2314
donatien 0:8e01dca41002 2315 /** A minimal implementation of fcntl.
donatien 0:8e01dca41002 2316 * Currently only the commands F_GETFL and F_SETFL are implemented.
donatien 0:8e01dca41002 2317 * Only the flag O_NONBLOCK is implemented.
donatien 0:8e01dca41002 2318 */
donatien 0:8e01dca41002 2319 int
donatien 0:8e01dca41002 2320 lwip_fcntl(int s, int cmd, int val)
donatien 0:8e01dca41002 2321 {
donatien 0:8e01dca41002 2322 struct lwip_sock *sock = get_socket(s);
donatien 0:8e01dca41002 2323 int ret = -1;
donatien 0:8e01dca41002 2324
donatien 0:8e01dca41002 2325 if (!sock || !sock->conn) {
donatien 0:8e01dca41002 2326 return -1;
donatien 0:8e01dca41002 2327 }
donatien 0:8e01dca41002 2328
donatien 0:8e01dca41002 2329 switch (cmd) {
donatien 0:8e01dca41002 2330 case F_GETFL:
donatien 0:8e01dca41002 2331 ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
donatien 0:8e01dca41002 2332 break;
donatien 0:8e01dca41002 2333 case F_SETFL:
donatien 0:8e01dca41002 2334 if ((val & ~O_NONBLOCK) == 0) {
donatien 0:8e01dca41002 2335 /* only O_NONBLOCK, all other bits are zero */
donatien 0:8e01dca41002 2336 netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
donatien 0:8e01dca41002 2337 ret = 0;
donatien 0:8e01dca41002 2338 }
donatien 0:8e01dca41002 2339 break;
donatien 0:8e01dca41002 2340 default:
donatien 0:8e01dca41002 2341 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
donatien 0:8e01dca41002 2342 break;
donatien 0:8e01dca41002 2343 }
donatien 0:8e01dca41002 2344 return ret;
donatien 0:8e01dca41002 2345 }
donatien 0:8e01dca41002 2346
donatien 0:8e01dca41002 2347 #endif /* LWIP_SOCKET */