2328 lines
67 KiB
C
2328 lines
67 KiB
C
/**
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* @file
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* Sockets BSD-Like API module
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*
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
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*
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*/
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#include "lwip/opt.h"
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#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
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#include "lwip/sockets.h"
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#include "lwip/api.h"
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#include "lwip/sys.h"
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#include "lwip/igmp.h"
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#include "lwip/inet.h"
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#include "lwip/tcp.h"
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#include "lwip/raw.h"
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#include "lwip/udp.h"
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#include "lwip/tcpip.h"
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#include "lwip/pbuf.h"
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#if LWIP_CHECKSUM_ON_COPY
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#include "lwip/inet_chksum.h"
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#endif
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#include <string.h>
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#define NUM_SOCKETS MEMP_NUM_NETCONN
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/** Contains all internal pointers and states used for a socket */
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struct lwip_sock {
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/** sockets currently are built on netconns, each socket has one netconn */
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struct netconn *conn;
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/** data that was left from the previous read */
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void *lastdata;
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/** offset in the data that was left from the previous read */
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u16_t lastoffset;
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/** number of times data was received, set by event_callback(),
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tested by the receive and select functions */
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s16_t rcvevent;
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/** number of times data was ACKed (free send buffer), set by event_callback(),
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tested by select */
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u16_t sendevent;
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/** error happened for this socket, set by event_callback(), tested by select */
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u16_t errevent;
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/** last error that occurred on this socket */
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int err;
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/** counter of how many threads are waiting for this socket using select */
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int select_waiting;
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};
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/** Description for a task waiting in select */
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struct lwip_select_cb {
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/** Pointer to the next waiting task */
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struct lwip_select_cb *next;
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/** Pointer to the previous waiting task */
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struct lwip_select_cb *prev;
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/** readset passed to select */
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fd_set *readset;
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/** writeset passed to select */
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fd_set *writeset;
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/** unimplemented: exceptset passed to select */
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fd_set *exceptset;
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/** don't signal the same semaphore twice: set to 1 when signalled */
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int sem_signalled;
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/** semaphore to wake up a task waiting for select */
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sys_sem_t sem;
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};
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/** This struct is used to pass data to the set/getsockopt_internal
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* functions running in tcpip_thread context (only a void* is allowed) */
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struct lwip_setgetsockopt_data {
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/** socket struct for which to change options */
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struct lwip_sock *sock;
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/** socket index for which to change options */
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int s;
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/** level of the option to process */
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int level;
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/** name of the option to process */
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int optname;
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/** set: value to set the option to
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* get: value of the option is stored here */
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void *optval;
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/** size of *optval */
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socklen_t *optlen;
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/** if an error occures, it is temporarily stored here */
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err_t err;
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};
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/** The global array of available sockets */
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static struct lwip_sock sockets[NUM_SOCKETS];
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/** The global list of tasks waiting for select */
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static struct lwip_select_cb *select_cb_list;
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/** This counter is increased from lwip_select when the list is chagned
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and checked in event_callback to see if it has changed. */
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static volatile int select_cb_ctr;
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/** Table to quickly map an lwIP error (err_t) to a socket error
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* by using -err as an index */
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static const int err_to_errno_table[] = {
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0, /* ERR_OK 0 No error, everything OK. */
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ENOMEM, /* ERR_MEM -1 Out of memory error. */
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ENOBUFS, /* ERR_BUF -2 Buffer error. */
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EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
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EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
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EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
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EINVAL, /* ERR_VAL -6 Illegal value. */
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EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
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ECONNABORTED, /* ERR_ABRT -8 Connection aborted. */
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ECONNRESET, /* ERR_RST -9 Connection reset. */
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ESHUTDOWN, /* ERR_CLSD -10 Connection closed. */
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ENOTCONN, /* ERR_CONN -11 Not connected. */
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EIO, /* ERR_ARG -12 Illegal argument. */
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EADDRINUSE, /* ERR_USE -13 Address in use. */
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-1, /* ERR_IF -14 Low-level netif error */
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-1, /* ERR_ISCONN -15 Already connected. */
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};
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#define ERR_TO_ERRNO_TABLE_SIZE \
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(sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
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#define err_to_errno(err) \
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((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
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err_to_errno_table[-(err)] : EIO)
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#ifdef ERRNO
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#ifndef set_errno
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#define set_errno(err) errno = (err)
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#endif
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#else /* ERRNO */
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#define set_errno(err)
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#endif /* ERRNO */
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#define sock_set_errno(sk, e) do { \
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sk->err = (e); \
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set_errno(sk->err); \
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} while (0)
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/* Forward delcaration of some functions */
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static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
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static void lwip_getsockopt_internal(void *arg);
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static void lwip_setsockopt_internal(void *arg);
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/**
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* Initialize this module. This function has to be called before any other
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* functions in this module!
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*/
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void
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lwip_socket_init(void)
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{
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}
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/**
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* Map a externally used socket index to the internal socket representation.
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*
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* @param s externally used socket index
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* @return struct lwip_sock for the socket or NULL if not found
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*/
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static struct lwip_sock *
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get_socket(int s)
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{
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struct lwip_sock *sock;
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if ((s < 0) || (s >= NUM_SOCKETS)) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
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set_errno(EBADF);
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return NULL;
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}
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sock = &sockets[s];
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if (!sock->conn) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
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set_errno(EBADF);
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return NULL;
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}
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return sock;
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}
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/**
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* Same as get_socket but doesn't set errno
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*
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* @param s externally used socket index
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* @return struct lwip_sock for the socket or NULL if not found
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*/
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static struct lwip_sock *
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tryget_socket(int s)
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{
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if ((s < 0) || (s >= NUM_SOCKETS)) {
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return NULL;
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}
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if (!sockets[s].conn) {
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return NULL;
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}
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return &sockets[s];
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}
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/**
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* Allocate a new socket for a given netconn.
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*
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* @param newconn the netconn for which to allocate a socket
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* @param accepted 1 if socket has been created by accept(),
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* 0 if socket has been created by socket()
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* @return the index of the new socket; -1 on error
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*/
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static int
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alloc_socket(struct netconn *newconn, int accepted)
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{
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int i;
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SYS_ARCH_DECL_PROTECT(lev);
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/* allocate a new socket identifier */
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for (i = 0; i < NUM_SOCKETS; ++i) {
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/* Protect socket array */
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SYS_ARCH_PROTECT(lev);
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if (!sockets[i].conn) {
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sockets[i].conn = newconn;
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/* The socket is not yet known to anyone, so no need to protect
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after having marked it as used. */
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SYS_ARCH_UNPROTECT(lev);
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sockets[i].lastdata = NULL;
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sockets[i].lastoffset = 0;
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sockets[i].rcvevent = 0;
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/* TCP sendbuf is empty, but the socket is not yet writable until connected
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* (unless it has been created by accept()). */
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sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
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sockets[i].errevent = 0;
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sockets[i].err = 0;
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sockets[i].select_waiting = 0;
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return i;
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}
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SYS_ARCH_UNPROTECT(lev);
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}
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return -1;
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}
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/** Free a socket. The socket's netconn must have been
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* delete before!
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*
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* @param sock the socket to free
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* @param is_tcp != 0 for TCP sockets, used to free lastdata
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*/
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static void
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free_socket(struct lwip_sock *sock, int is_tcp)
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{
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void *lastdata;
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SYS_ARCH_DECL_PROTECT(lev);
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lastdata = sock->lastdata;
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sock->lastdata = NULL;
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sock->lastoffset = 0;
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sock->err = 0;
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/* Protect socket array */
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SYS_ARCH_PROTECT(lev);
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sock->conn = NULL;
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SYS_ARCH_UNPROTECT(lev);
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/* don't use 'sock' after this line, as another task might have allocated it */
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if (lastdata != NULL) {
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if (is_tcp) {
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pbuf_free((struct pbuf *)lastdata);
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} else {
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netbuf_delete((struct netbuf *)lastdata);
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}
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}
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}
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/* Below this, the well-known socket functions are implemented.
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* Use google.com or opengroup.org to get a good description :-)
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*
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* Exceptions are documented!
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*/
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int
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lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
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{
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struct lwip_sock *sock, *nsock;
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struct netconn *newconn;
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ip_addr_t naddr;
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u16_t port;
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int newsock;
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struct sockaddr_in sin;
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err_t err;
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SYS_ARCH_DECL_PROTECT(lev);
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
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sock = get_socket(s);
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if (!sock) {
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return -1;
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}
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if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
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sock_set_errno(sock, EWOULDBLOCK);
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return -1;
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}
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/* wait for a new connection */
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err = netconn_accept(sock->conn, &newconn);
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if (err != ERR_OK) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
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sock_set_errno(sock, err_to_errno(err));
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return -1;
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}
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LWIP_ASSERT("newconn != NULL", newconn != NULL);
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/* Prevent automatic window updates, we do this on our own! */
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netconn_set_noautorecved(newconn, 1);
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/* get the IP address and port of the remote host */
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err = netconn_peer(newconn, &naddr, &port);
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if (err != ERR_OK) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
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netconn_delete(newconn);
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sock_set_errno(sock, err_to_errno(err));
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return -1;
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}
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/* Note that POSIX only requires us to check addr is non-NULL. addrlen must
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* not be NULL if addr is valid.
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*/
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if (NULL != addr) {
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LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
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memset(&sin, 0, sizeof(sin));
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sin.sin_len = sizeof(sin);
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sin.sin_family = AF_INET;
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sin.sin_port = htons(port);
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inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
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if (*addrlen > sizeof(sin))
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*addrlen = sizeof(sin);
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MEMCPY(addr, &sin, *addrlen);
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}
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newsock = alloc_socket(newconn, 1);
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if (newsock == -1) {
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netconn_delete(newconn);
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sock_set_errno(sock, ENFILE);
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return -1;
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}
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LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
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LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
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nsock = &sockets[newsock];
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/* See event_callback: If data comes in right away after an accept, even
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* though the server task might not have created a new socket yet.
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* In that case, newconn->socket is counted down (newconn->socket--),
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* so nsock->rcvevent is >= 1 here!
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*/
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SYS_ARCH_PROTECT(lev);
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nsock->rcvevent += (s16_t)(-1 - newconn->socket);
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newconn->socket = newsock;
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SYS_ARCH_UNPROTECT(lev);
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
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ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
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LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
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sock_set_errno(sock, 0);
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return newsock;
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}
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int
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lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
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{
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struct lwip_sock *sock;
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ip_addr_t local_addr;
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u16_t local_port;
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err_t err;
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const struct sockaddr_in *name_in;
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sock = get_socket(s);
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if (!sock) {
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return -1;
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}
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/* check size, familiy and alignment of 'name' */
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LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
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((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
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sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
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name_in = (const struct sockaddr_in *)(void*)name;
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inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
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local_port = name_in->sin_port;
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
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ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
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LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
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err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
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if (err != ERR_OK) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
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sock_set_errno(sock, err_to_errno(err));
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return -1;
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}
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
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sock_set_errno(sock, 0);
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return 0;
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}
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int
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lwip_close(int s)
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{
|
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struct lwip_sock *sock;
|
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int is_tcp = 0;
|
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|
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
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sock = get_socket(s);
|
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if (!sock) {
|
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return -1;
|
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}
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|
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if(sock->conn != NULL) {
|
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is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
|
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} else {
|
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LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
|
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}
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netconn_delete(sock->conn);
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|
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free_socket(sock, is_tcp);
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set_errno(0);
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return 0;
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}
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|
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int
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lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
|
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{
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struct lwip_sock *sock;
|
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err_t err;
|
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const struct sockaddr_in *name_in;
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|
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sock = get_socket(s);
|
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if (!sock) {
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return -1;
|
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}
|
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|
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/* check size, familiy and alignment of 'name' */
|
|
LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
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((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
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sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
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name_in = (const struct sockaddr_in *)(void*)name;
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|
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if (name_in->sin_family == AF_UNSPEC) {
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
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err = netconn_disconnect(sock->conn);
|
|
} else {
|
|
ip_addr_t remote_addr;
|
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u16_t remote_port;
|
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|
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inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
|
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remote_port = name_in->sin_port;
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|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
|
|
ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
|
|
|
|
err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
|
|
}
|
|
|
|
if (err != ERR_OK) {
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
return -1;
|
|
}
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
|
|
sock_set_errno(sock, 0);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Set a socket into listen mode.
|
|
* The socket may not have been used for another connection previously.
|
|
*
|
|
* @param s the socket to set to listening mode
|
|
* @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
|
|
* @return 0 on success, non-zero on failure
|
|
*/
|
|
int
|
|
lwip_listen(int s, int backlog)
|
|
{
|
|
struct lwip_sock *sock;
|
|
err_t err;
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
/* limit the "backlog" parameter to fit in an u8_t */
|
|
backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
|
|
|
|
err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
|
|
|
|
if (err != ERR_OK) {
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
return -1;
|
|
}
|
|
|
|
sock_set_errno(sock, 0);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lwip_recvfrom(int s, void *mem, size_t len, int flags,
|
|
struct sockaddr *from, socklen_t *fromlen)
|
|
{
|
|
struct lwip_sock *sock;
|
|
void *buf = NULL;
|
|
struct pbuf *p;
|
|
u16_t buflen, copylen;
|
|
int off = 0;
|
|
ip_addr_t *addr;
|
|
u16_t port;
|
|
u8_t done = 0;
|
|
err_t err;
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
do {
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
|
|
/* Check if there is data left from the last recv operation. */
|
|
if (sock->lastdata) {
|
|
buf = sock->lastdata;
|
|
} else {
|
|
/* If this is non-blocking call, then check first */
|
|
if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
|
|
(sock->rcvevent <= 0)) {
|
|
if (off > 0) {
|
|
/* update receive window */
|
|
netconn_recved(sock->conn, (u32_t)off);
|
|
/* already received data, return that */
|
|
sock_set_errno(sock, 0);
|
|
return off;
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
|
|
sock_set_errno(sock, EWOULDBLOCK);
|
|
return -1;
|
|
}
|
|
|
|
/* No data was left from the previous operation, so we try to get
|
|
some from the network. */
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
|
|
} else {
|
|
err = netconn_recv(sock->conn, (struct netbuf **)&buf);
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
|
|
err, buf));
|
|
|
|
if (err != ERR_OK) {
|
|
if (off > 0) {
|
|
/* update receive window */
|
|
netconn_recved(sock->conn, (u32_t)off);
|
|
/* already received data, return that */
|
|
sock_set_errno(sock, 0);
|
|
return off;
|
|
}
|
|
/* We should really do some error checking here. */
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
|
|
s, lwip_strerr(err)));
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
if (err == ERR_CLSD) {
|
|
return 0;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
LWIP_ASSERT("buf != NULL", buf != NULL);
|
|
sock->lastdata = buf;
|
|
}
|
|
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
p = (struct pbuf *)buf;
|
|
} else {
|
|
p = ((struct netbuf *)buf)->p;
|
|
}
|
|
buflen = p->tot_len;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
|
|
buflen, len, off, sock->lastoffset));
|
|
|
|
buflen -= sock->lastoffset;
|
|
|
|
if (len > buflen) {
|
|
copylen = buflen;
|
|
} else {
|
|
copylen = (u16_t)len;
|
|
}
|
|
|
|
/* copy the contents of the received buffer into
|
|
the supplied memory pointer mem */
|
|
pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
|
|
|
|
off += copylen;
|
|
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
|
|
len -= copylen;
|
|
if ( (len <= 0) ||
|
|
(p->flags & PBUF_FLAG_PUSH) ||
|
|
(sock->rcvevent <= 0) ||
|
|
((flags & MSG_PEEK)!=0)) {
|
|
done = 1;
|
|
}
|
|
} else {
|
|
done = 1;
|
|
}
|
|
|
|
/* Check to see from where the data was.*/
|
|
if (done) {
|
|
ip_addr_t fromaddr;
|
|
if (from && fromlen) {
|
|
struct sockaddr_in sin;
|
|
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
addr = &fromaddr;
|
|
netconn_getaddr(sock->conn, addr, &port, 0);
|
|
} else {
|
|
addr = netbuf_fromaddr((struct netbuf *)buf);
|
|
port = netbuf_fromport((struct netbuf *)buf);
|
|
}
|
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
sin.sin_len = sizeof(sin);
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_port = htons(port);
|
|
inet_addr_from_ipaddr(&sin.sin_addr, addr);
|
|
|
|
if (*fromlen > sizeof(sin)) {
|
|
*fromlen = sizeof(sin);
|
|
}
|
|
|
|
MEMCPY(from, &sin, *fromlen);
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
|
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
|
|
} else {
|
|
#if SOCKETS_DEBUG
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
addr = &fromaddr;
|
|
netconn_getaddr(sock->conn, addr, &port, 0);
|
|
} else {
|
|
addr = netbuf_fromaddr((struct netbuf *)buf);
|
|
port = netbuf_fromport((struct netbuf *)buf);
|
|
}
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
|
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
|
|
#endif /* SOCKETS_DEBUG */
|
|
}
|
|
}
|
|
|
|
/* If we don't peek the incoming message... */
|
|
if ((flags & MSG_PEEK) == 0) {
|
|
/* If this is a TCP socket, check if there is data left in the
|
|
buffer. If so, it should be saved in the sock structure for next
|
|
time around. */
|
|
if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
|
|
sock->lastdata = buf;
|
|
sock->lastoffset += copylen;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
|
|
} else {
|
|
sock->lastdata = NULL;
|
|
sock->lastoffset = 0;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
|
|
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
|
pbuf_free((struct pbuf *)buf);
|
|
} else {
|
|
netbuf_delete((struct netbuf *)buf);
|
|
}
|
|
}
|
|
}
|
|
} while (!done);
|
|
|
|
if (off > 0) {
|
|
/* update receive window */
|
|
netconn_recved(sock->conn, (u32_t)off);
|
|
}
|
|
sock_set_errno(sock, 0);
|
|
return off;
|
|
}
|
|
|
|
int
|
|
lwip_read(int s, void *mem, size_t len)
|
|
{
|
|
return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
|
|
}
|
|
|
|
int
|
|
lwip_recv(int s, void *mem, size_t len, int flags)
|
|
{
|
|
return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
|
|
}
|
|
|
|
int
|
|
lwip_send(int s, const void *data, size_t size, int flags)
|
|
{
|
|
struct lwip_sock *sock;
|
|
err_t err;
|
|
u8_t write_flags;
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
|
|
s, data, size, flags));
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
if (sock->conn->type != NETCONN_TCP) {
|
|
#if (LWIP_UDP || LWIP_RAW)
|
|
return lwip_sendto(s, data, size, flags, NULL, 0);
|
|
#else /* (LWIP_UDP || LWIP_RAW) */
|
|
sock_set_errno(sock, err_to_errno(ERR_ARG));
|
|
return -1;
|
|
#endif /* (LWIP_UDP || LWIP_RAW) */
|
|
}
|
|
|
|
if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
|
|
if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
|
|
/* too much data to ever send nonblocking! */
|
|
sock_set_errno(sock, EMSGSIZE);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
write_flags = NETCONN_COPY |
|
|
((flags & MSG_MORE) ? NETCONN_MORE : 0) |
|
|
((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
|
|
err = netconn_write(sock->conn, data, size, write_flags);
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
return (err == ERR_OK ? (int)size : -1);
|
|
}
|
|
|
|
int
|
|
lwip_sendto(int s, const void *data, size_t size, int flags,
|
|
const struct sockaddr *to, socklen_t tolen)
|
|
{
|
|
struct lwip_sock *sock;
|
|
err_t err;
|
|
u16_t short_size;
|
|
const struct sockaddr_in *to_in;
|
|
u16_t remote_port;
|
|
#if !LWIP_TCPIP_CORE_LOCKING
|
|
struct netbuf buf;
|
|
#endif
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
if (sock->conn->type == NETCONN_TCP) {
|
|
#if LWIP_TCP
|
|
return lwip_send(s, data, size, flags);
|
|
#else /* LWIP_TCP */
|
|
sock_set_errno(sock, err_to_errno(ERR_ARG));
|
|
return -1;
|
|
#endif /* LWIP_TCP */
|
|
}
|
|
|
|
/* @todo: split into multiple sendto's? */
|
|
LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
|
|
short_size = (u16_t)size;
|
|
LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
|
|
((tolen == sizeof(struct sockaddr_in)) &&
|
|
((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
|
|
sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
|
|
to_in = (const struct sockaddr_in *)(void*)to;
|
|
|
|
#if LWIP_TCPIP_CORE_LOCKING
|
|
/* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
|
|
{
|
|
struct pbuf* p;
|
|
ip_addr_t *remote_addr;
|
|
|
|
#if LWIP_NETIF_TX_SINGLE_PBUF
|
|
p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
|
|
if (p != NULL) {
|
|
#if LWIP_CHECKSUM_ON_COPY
|
|
u16_t chksum = 0;
|
|
if (sock->conn->type != NETCONN_RAW) {
|
|
chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
|
|
} else
|
|
#endif /* LWIP_CHECKSUM_ON_COPY */
|
|
MEMCPY(p->payload, data, size);
|
|
#else /* LWIP_NETIF_TX_SINGLE_PBUF */
|
|
p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
|
|
if (p != NULL) {
|
|
p->payload = (void*)data;
|
|
#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
|
|
|
|
if (to_in != NULL) {
|
|
inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
|
|
remote_port = ntohs(to_in->sin_port);
|
|
} else {
|
|
remote_addr = IP_ADDR_ANY;
|
|
remote_port = 0;
|
|
}
|
|
|
|
LOCK_TCPIP_CORE();
|
|
if (sock->conn->type == NETCONN_RAW) {
|
|
err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
|
|
} else {
|
|
#if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
|
|
err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
|
|
remote_addr, remote_port, 1, chksum);
|
|
#else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
|
|
err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
|
|
remote_addr, remote_port);
|
|
#endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
|
|
}
|
|
UNLOCK_TCPIP_CORE();
|
|
|
|
pbuf_free(p);
|
|
} else {
|
|
err = ERR_MEM;
|
|
}
|
|
}
|
|
#else /* LWIP_TCPIP_CORE_LOCKING */
|
|
/* initialize a buffer */
|
|
buf.p = buf.ptr = NULL;
|
|
#if LWIP_CHECKSUM_ON_COPY
|
|
buf.flags = 0;
|
|
#endif /* LWIP_CHECKSUM_ON_COPY */
|
|
if (to) {
|
|
inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
|
|
remote_port = ntohs(to_in->sin_port);
|
|
netbuf_fromport(&buf) = remote_port;
|
|
} else {
|
|
remote_port = 0;
|
|
ip_addr_set_any(&buf.addr);
|
|
netbuf_fromport(&buf) = 0;
|
|
}
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%d"U16_F", flags=0x%x to=",
|
|
s, data, short_size, flags));
|
|
ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
|
|
|
|
/* make the buffer point to the data that should be sent */
|
|
#if LWIP_NETIF_TX_SINGLE_PBUF
|
|
/* Allocate a new netbuf and copy the data into it. */
|
|
if (netbuf_alloc(&buf, short_size) == NULL) {
|
|
err = ERR_MEM;
|
|
} else {
|
|
#if LWIP_CHECKSUM_ON_COPY
|
|
if (sock->conn->type != NETCONN_RAW) {
|
|
u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
|
|
netbuf_set_chksum(&buf, chksum);
|
|
err = ERR_OK;
|
|
} else
|
|
#endif /* LWIP_CHECKSUM_ON_COPY */
|
|
{
|
|
err = netbuf_take(&buf, data, short_size);
|
|
}
|
|
}
|
|
#else /* LWIP_NETIF_TX_SINGLE_PBUF */
|
|
err = netbuf_ref(&buf, data, short_size);
|
|
#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
|
|
if (err == ERR_OK) {
|
|
/* send the data */
|
|
err = netconn_send(sock->conn, &buf);
|
|
}
|
|
|
|
/* deallocated the buffer */
|
|
netbuf_free(&buf);
|
|
#endif /* LWIP_TCPIP_CORE_LOCKING */
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
return (err == ERR_OK ? short_size : -1);
|
|
}
|
|
|
|
int
|
|
lwip_socket(int domain, int type, int protocol)
|
|
{
|
|
struct netconn *conn;
|
|
int i;
|
|
|
|
LWIP_UNUSED_ARG(domain);
|
|
|
|
/* create a netconn */
|
|
switch (type) {
|
|
case SOCK_RAW:
|
|
conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
|
|
domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
|
break;
|
|
case SOCK_DGRAM:
|
|
conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
|
|
NETCONN_UDPLITE : NETCONN_UDP, event_callback);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
|
|
domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
|
break;
|
|
case SOCK_STREAM:
|
|
conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
|
|
domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
|
|
if (conn != NULL) {
|
|
/* Prevent automatic window updates, we do this on our own! */
|
|
netconn_set_noautorecved(conn, 1);
|
|
}
|
|
break;
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
|
|
domain, type, protocol));
|
|
set_errno(EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
if (!conn) {
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
|
|
set_errno(ENOBUFS);
|
|
return -1;
|
|
}
|
|
|
|
i = alloc_socket(conn, 0);
|
|
|
|
if (i == -1) {
|
|
netconn_delete(conn);
|
|
set_errno(ENFILE);
|
|
return -1;
|
|
}
|
|
conn->socket = i;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
|
|
set_errno(0);
|
|
return i;
|
|
}
|
|
|
|
int
|
|
lwip_write(int s, const void *data, size_t size)
|
|
{
|
|
return lwip_send(s, data, size, 0);
|
|
}
|
|
|
|
/**
|
|
* Go through the readset and writeset lists and see which socket of the sockets
|
|
* set in the sets has events. On return, readset, writeset and exceptset have
|
|
* the sockets enabled that had events.
|
|
*
|
|
* exceptset is not used for now!!!
|
|
*
|
|
* @param maxfdp1 the highest socket index in the sets
|
|
* @param readset_in: set of sockets to check for read events
|
|
* @param writeset_in: set of sockets to check for write events
|
|
* @param exceptset_in: set of sockets to check for error events
|
|
* @param readset_out: set of sockets that had read events
|
|
* @param writeset_out: set of sockets that had write events
|
|
* @param exceptset_out: set os sockets that had error events
|
|
* @return number of sockets that had events (read/write/exception) (>= 0)
|
|
*/
|
|
static int
|
|
lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
|
|
fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
|
|
{
|
|
int i, nready = 0;
|
|
fd_set lreadset, lwriteset, lexceptset;
|
|
struct lwip_sock *sock;
|
|
SYS_ARCH_DECL_PROTECT(lev);
|
|
|
|
FD_ZERO(&lreadset);
|
|
FD_ZERO(&lwriteset);
|
|
FD_ZERO(&lexceptset);
|
|
|
|
/* Go through each socket in each list to count number of sockets which
|
|
currently match */
|
|
for(i = 0; i < maxfdp1; i++) {
|
|
void* lastdata = NULL;
|
|
s16_t rcvevent = 0;
|
|
u16_t sendevent = 0;
|
|
u16_t errevent = 0;
|
|
/* First get the socket's status (protected)... */
|
|
SYS_ARCH_PROTECT(lev);
|
|
sock = tryget_socket(i);
|
|
if (sock != NULL) {
|
|
lastdata = sock->lastdata;
|
|
rcvevent = sock->rcvevent;
|
|
sendevent = sock->sendevent;
|
|
errevent = sock->errevent;
|
|
}
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
/* ... then examine it: */
|
|
/* See if netconn of this socket is ready for read */
|
|
if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
|
|
FD_SET(i, &lreadset);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
|
|
nready++;
|
|
}
|
|
/* See if netconn of this socket is ready for write */
|
|
if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
|
|
FD_SET(i, &lwriteset);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
|
|
nready++;
|
|
}
|
|
/* See if netconn of this socket had an error */
|
|
if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
|
|
FD_SET(i, &lexceptset);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
|
|
nready++;
|
|
}
|
|
}
|
|
/* copy local sets to the ones provided as arguments */
|
|
*readset_out = lreadset;
|
|
*writeset_out = lwriteset;
|
|
*exceptset_out = lexceptset;
|
|
|
|
LWIP_ASSERT("nready >= 0", nready >= 0);
|
|
return nready;
|
|
}
|
|
|
|
/**
|
|
* Processing exceptset is not yet implemented.
|
|
*/
|
|
int
|
|
lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
|
|
struct timeval *timeout)
|
|
{
|
|
u32_t waitres = 0;
|
|
int nready;
|
|
fd_set lreadset, lwriteset, lexceptset;
|
|
u32_t msectimeout;
|
|
struct lwip_select_cb select_cb;
|
|
err_t err;
|
|
int i;
|
|
SYS_ARCH_DECL_PROTECT(lev);
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
|
|
maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
|
|
timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
|
|
timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
|
|
|
|
/* Go through each socket in each list to count number of sockets which
|
|
currently match */
|
|
nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
|
|
|
/* If we don't have any current events, then suspend if we are supposed to */
|
|
if (!nready) {
|
|
if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
|
|
/* This is OK as the local fdsets are empty and nready is zero,
|
|
or we would have returned earlier. */
|
|
goto return_copy_fdsets;
|
|
}
|
|
|
|
/* None ready: add our semaphore to list:
|
|
We don't actually need any dynamic memory. Our entry on the
|
|
list is only valid while we are in this function, so it's ok
|
|
to use local variables. */
|
|
|
|
select_cb.next = NULL;
|
|
select_cb.prev = NULL;
|
|
select_cb.readset = readset;
|
|
select_cb.writeset = writeset;
|
|
select_cb.exceptset = exceptset;
|
|
select_cb.sem_signalled = 0;
|
|
err = sys_sem_new(&select_cb.sem, 0);
|
|
if (err != ERR_OK) {
|
|
/* failed to create semaphore */
|
|
set_errno(ENOMEM);
|
|
return -1;
|
|
}
|
|
|
|
/* Protect the select_cb_list */
|
|
SYS_ARCH_PROTECT(lev);
|
|
|
|
/* Put this select_cb on top of list */
|
|
select_cb.next = select_cb_list;
|
|
if (select_cb_list != NULL) {
|
|
select_cb_list->prev = &select_cb;
|
|
}
|
|
select_cb_list = &select_cb;
|
|
/* Increasing this counter tells even_callback that the list has changed. */
|
|
select_cb_ctr++;
|
|
|
|
/* Now we can safely unprotect */
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
|
|
/* Increase select_waiting for each socket we are interested in */
|
|
for(i = 0; i < maxfdp1; i++) {
|
|
if ((readset && FD_ISSET(i, readset)) ||
|
|
(writeset && FD_ISSET(i, writeset)) ||
|
|
(exceptset && FD_ISSET(i, exceptset))) {
|
|
struct lwip_sock *sock = tryget_socket(i);
|
|
LWIP_ASSERT("sock != NULL", sock != NULL);
|
|
SYS_ARCH_PROTECT(lev);
|
|
sock->select_waiting++;
|
|
LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
}
|
|
}
|
|
|
|
/* Call lwip_selscan again: there could have been events between
|
|
the last scan (whithout us on the list) and putting us on the list! */
|
|
nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
|
if (!nready) {
|
|
/* Still none ready, just wait to be woken */
|
|
if (timeout == 0) {
|
|
/* Wait forever */
|
|
msectimeout = 0;
|
|
} else {
|
|
msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
|
|
if (msectimeout == 0) {
|
|
/* Wait 1ms at least (0 means wait forever) */
|
|
msectimeout = 1;
|
|
}
|
|
}
|
|
|
|
waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
|
|
}
|
|
/* Increase select_waiting for each socket we are interested in */
|
|
for(i = 0; i < maxfdp1; i++) {
|
|
if ((readset && FD_ISSET(i, readset)) ||
|
|
(writeset && FD_ISSET(i, writeset)) ||
|
|
(exceptset && FD_ISSET(i, exceptset))) {
|
|
struct lwip_sock *sock = tryget_socket(i);
|
|
LWIP_ASSERT("sock != NULL", sock != NULL);
|
|
SYS_ARCH_PROTECT(lev);
|
|
sock->select_waiting--;
|
|
LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
}
|
|
}
|
|
/* Take us off the list */
|
|
SYS_ARCH_PROTECT(lev);
|
|
if (select_cb.next != NULL) {
|
|
select_cb.next->prev = select_cb.prev;
|
|
}
|
|
if (select_cb_list == &select_cb) {
|
|
LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
|
|
select_cb_list = select_cb.next;
|
|
} else {
|
|
LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
|
|
select_cb.prev->next = select_cb.next;
|
|
}
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
|
|
sys_sem_free(&select_cb.sem);
|
|
if (waitres == SYS_ARCH_TIMEOUT) {
|
|
/* Timeout */
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
|
|
/* This is OK as the local fdsets are empty and nready is zero,
|
|
or we would have returned earlier. */
|
|
goto return_copy_fdsets;
|
|
}
|
|
|
|
/* See what's set */
|
|
nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
|
|
}
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
|
|
return_copy_fdsets:
|
|
set_errno(0);
|
|
if (readset) {
|
|
*readset = lreadset;
|
|
}
|
|
if (writeset) {
|
|
*writeset = lwriteset;
|
|
}
|
|
if (exceptset) {
|
|
*exceptset = lexceptset;
|
|
}
|
|
|
|
|
|
return nready;
|
|
}
|
|
|
|
/**
|
|
* Callback registered in the netconn layer for each socket-netconn.
|
|
* Processes recvevent (data available) and wakes up tasks waiting for select.
|
|
*/
|
|
static void
|
|
event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
|
|
{
|
|
int s;
|
|
struct lwip_sock *sock;
|
|
struct lwip_select_cb *scb;
|
|
SYS_ARCH_DECL_PROTECT(lev);
|
|
|
|
LWIP_UNUSED_ARG(len);
|
|
|
|
/* Get socket */
|
|
if (conn) {
|
|
s = conn->socket;
|
|
if (s < 0) {
|
|
/* Data comes in right away after an accept, even though
|
|
* the server task might not have created a new socket yet.
|
|
* Just count down (or up) if that's the case and we
|
|
* will use the data later. Note that only receive events
|
|
* can happen before the new socket is set up. */
|
|
SYS_ARCH_PROTECT(lev);
|
|
if (conn->socket < 0) {
|
|
if (evt == NETCONN_EVT_RCVPLUS) {
|
|
conn->socket--;
|
|
}
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
return;
|
|
}
|
|
s = conn->socket;
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
}
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return;
|
|
}
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
SYS_ARCH_PROTECT(lev);
|
|
/* Set event as required */
|
|
switch (evt) {
|
|
case NETCONN_EVT_RCVPLUS:
|
|
sock->rcvevent++;
|
|
break;
|
|
case NETCONN_EVT_RCVMINUS:
|
|
sock->rcvevent--;
|
|
break;
|
|
case NETCONN_EVT_SENDPLUS:
|
|
sock->sendevent = 1;
|
|
break;
|
|
case NETCONN_EVT_SENDMINUS:
|
|
sock->sendevent = 0;
|
|
break;
|
|
case NETCONN_EVT_ERROR:
|
|
sock->errevent = 1;
|
|
break;
|
|
default:
|
|
LWIP_ASSERT("unknown event", 0);
|
|
break;
|
|
}
|
|
|
|
if (sock->select_waiting == 0) {
|
|
/* noone is waiting for this socket, no need to check select_cb_list */
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
return;
|
|
}
|
|
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
|
|
/* Now decide if anyone is waiting for this socket */
|
|
/* NOTE: This code is written this way to protect the select link list
|
|
but to avoid a deadlock situation by releasing select_lock before
|
|
signalling for the select. This means we need to go through the list
|
|
multiple times ONLY IF a select was actually waiting. We go through
|
|
the list the number of waiting select calls + 1. This list is
|
|
expected to be small. */
|
|
while (1) {
|
|
int last_select_cb_ctr;
|
|
SYS_ARCH_PROTECT(lev);
|
|
for (scb = select_cb_list; scb; scb = scb->next) {
|
|
/* @todo: unprotect with each loop and check for changes? */
|
|
if (scb->sem_signalled == 0) {
|
|
/* Test this select call for our socket */
|
|
if (scb->readset && FD_ISSET(s, scb->readset)) {
|
|
if (sock->rcvevent > 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (scb->writeset && FD_ISSET(s, scb->writeset)) {
|
|
if (sock->sendevent != 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (scb->exceptset && FD_ISSET(s, scb->exceptset)) {
|
|
if (sock->errevent != 0) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* unlock interrupts with each step */
|
|
last_select_cb_ctr = select_cb_ctr;
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
SYS_ARCH_PROTECT(lev);
|
|
if (last_select_cb_ctr != select_cb_ctr) {
|
|
/* someone has changed select_cb_list, restart at the beginning */
|
|
scb = select_cb_list;
|
|
}
|
|
}
|
|
if (scb) {
|
|
scb->sem_signalled = 1;
|
|
sys_sem_signal(&scb->sem);
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
} else {
|
|
SYS_ARCH_UNPROTECT(lev);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unimplemented: Close one end of a full-duplex connection.
|
|
* Currently, the full connection is closed.
|
|
*/
|
|
int
|
|
lwip_shutdown(int s, int how)
|
|
{
|
|
struct lwip_sock *sock;
|
|
err_t err;
|
|
u8_t shut_rx = 0, shut_tx = 0;
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
if (sock->conn != NULL) {
|
|
if (netconn_type(sock->conn) != NETCONN_TCP) {
|
|
sock_set_errno(sock, EOPNOTSUPP);
|
|
return EOPNOTSUPP;
|
|
}
|
|
} else {
|
|
sock_set_errno(sock, ENOTCONN);
|
|
return ENOTCONN;
|
|
}
|
|
|
|
if (how == SHUT_RD) {
|
|
shut_rx = 1;
|
|
} else if (how == SHUT_WR) {
|
|
shut_tx = 1;
|
|
} else if(how == SHUT_RDWR) {
|
|
shut_rx = 1;
|
|
shut_tx = 1;
|
|
} else {
|
|
sock_set_errno(sock, EINVAL);
|
|
return EINVAL;
|
|
}
|
|
err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
|
|
|
|
sock_set_errno(sock, err_to_errno(err));
|
|
return (err == ERR_OK ? 0 : -1);
|
|
}
|
|
|
|
static int
|
|
lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
|
|
{
|
|
struct lwip_sock *sock;
|
|
struct sockaddr_in sin;
|
|
ip_addr_t naddr;
|
|
|
|
sock = get_socket(s);
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
sin.sin_len = sizeof(sin);
|
|
sin.sin_family = AF_INET;
|
|
|
|
/* get the IP address and port */
|
|
netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
|
|
ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
|
|
|
|
sin.sin_port = htons(sin.sin_port);
|
|
inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
|
|
|
|
if (*namelen > sizeof(sin)) {
|
|
*namelen = sizeof(sin);
|
|
}
|
|
|
|
MEMCPY(name, &sin, *namelen);
|
|
sock_set_errno(sock, 0);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
|
|
{
|
|
return lwip_getaddrname(s, name, namelen, 0);
|
|
}
|
|
|
|
int
|
|
lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
|
|
{
|
|
return lwip_getaddrname(s, name, namelen, 1);
|
|
}
|
|
|
|
int
|
|
lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
|
|
{
|
|
err_t err = ERR_OK;
|
|
struct lwip_sock *sock = get_socket(s);
|
|
struct lwip_setgetsockopt_data data;
|
|
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
if ((NULL == optval) || (NULL == optlen)) {
|
|
sock_set_errno(sock, EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
/* Do length and type checks for the various options first, to keep it readable. */
|
|
switch (level) {
|
|
|
|
/* Level: SOL_SOCKET */
|
|
case SOL_SOCKET:
|
|
switch (optname) {
|
|
|
|
case SO_ACCEPTCONN:
|
|
case SO_BROADCAST:
|
|
/* UNIMPL case SO_DEBUG: */
|
|
/* UNIMPL case SO_DONTROUTE: */
|
|
case SO_ERROR:
|
|
case SO_KEEPALIVE:
|
|
/* UNIMPL case SO_CONTIMEO: */
|
|
/* UNIMPL case SO_SNDTIMEO: */
|
|
#if LWIP_SO_RCVTIMEO
|
|
case SO_RCVTIMEO:
|
|
#endif /* LWIP_SO_RCVTIMEO */
|
|
#if LWIP_SO_RCVBUF
|
|
case SO_RCVBUF:
|
|
#endif /* LWIP_SO_RCVBUF */
|
|
/* UNIMPL case SO_OOBINLINE: */
|
|
/* UNIMPL case SO_SNDBUF: */
|
|
/* UNIMPL case SO_RCVLOWAT: */
|
|
/* UNIMPL case SO_SNDLOWAT: */
|
|
#if SO_REUSE
|
|
case SO_REUSEADDR:
|
|
case SO_REUSEPORT:
|
|
#endif /* SO_REUSE */
|
|
case SO_TYPE:
|
|
/* UNIMPL case SO_USELOOPBACK: */
|
|
if (*optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
|
|
case SO_NO_CHECK:
|
|
if (*optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
#if LWIP_UDP
|
|
if ((sock->conn->type != NETCONN_UDP) ||
|
|
((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
|
|
/* this flag is only available for UDP, not for UDP lite */
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
#endif /* LWIP_UDP */
|
|
break;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
/* Level: IPPROTO_IP */
|
|
case IPPROTO_IP:
|
|
switch (optname) {
|
|
/* UNIMPL case IP_HDRINCL: */
|
|
/* UNIMPL case IP_RCVDSTADDR: */
|
|
/* UNIMPL case IP_RCVIF: */
|
|
case IP_TTL:
|
|
case IP_TOS:
|
|
if (*optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
#if LWIP_IGMP
|
|
case IP_MULTICAST_TTL:
|
|
if (*optlen < sizeof(u8_t)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
case IP_MULTICAST_IF:
|
|
if (*optlen < sizeof(struct in_addr)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
case IP_MULTICAST_LOOP:
|
|
if (*optlen < sizeof(u8_t)) {
|
|
err = EINVAL;
|
|
}
|
|
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
break;
|
|
#endif /* LWIP_IGMP */
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
#if LWIP_TCP
|
|
/* Level: IPPROTO_TCP */
|
|
case IPPROTO_TCP:
|
|
if (*optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
/* If this is no TCP socket, ignore any options. */
|
|
if (sock->conn->type != NETCONN_TCP)
|
|
return 0;
|
|
|
|
switch (optname) {
|
|
case TCP_NODELAY:
|
|
case TCP_KEEPALIVE:
|
|
#if LWIP_TCP_KEEPALIVE
|
|
case TCP_KEEPIDLE:
|
|
case TCP_KEEPINTVL:
|
|
case TCP_KEEPCNT:
|
|
#endif /* LWIP_TCP_KEEPALIVE */
|
|
break;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_TCP */
|
|
#if LWIP_UDP && LWIP_UDPLITE
|
|
/* Level: IPPROTO_UDPLITE */
|
|
case IPPROTO_UDPLITE:
|
|
if (*optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
/* If this is no UDP lite socket, ignore any options. */
|
|
if (sock->conn->type != NETCONN_UDPLITE) {
|
|
return 0;
|
|
}
|
|
|
|
switch (optname) {
|
|
case UDPLITE_SEND_CSCOV:
|
|
case UDPLITE_RECV_CSCOV:
|
|
break;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_UDP && LWIP_UDPLITE*/
|
|
/* UNDEFINED LEVEL */
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
|
|
s, level, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch */
|
|
|
|
|
|
if (err != ERR_OK) {
|
|
sock_set_errno(sock, err);
|
|
return -1;
|
|
}
|
|
|
|
/* Now do the actual option processing */
|
|
data.sock = sock;
|
|
data.level = level;
|
|
data.optname = optname;
|
|
data.optval = optval;
|
|
data.optlen = optlen;
|
|
data.err = err;
|
|
tcpip_callback(lwip_getsockopt_internal, &data);
|
|
sys_arch_sem_wait(&sock->conn->op_completed, 0);
|
|
/* maybe lwip_getsockopt_internal has changed err */
|
|
err = data.err;
|
|
|
|
sock_set_errno(sock, err);
|
|
return err ? -1 : 0;
|
|
}
|
|
|
|
static void
|
|
lwip_getsockopt_internal(void *arg)
|
|
{
|
|
struct lwip_sock *sock;
|
|
#ifdef LWIP_DEBUG
|
|
int s;
|
|
#endif /* LWIP_DEBUG */
|
|
int level, optname;
|
|
void *optval;
|
|
struct lwip_setgetsockopt_data *data;
|
|
|
|
LWIP_ASSERT("arg != NULL", arg != NULL);
|
|
|
|
data = (struct lwip_setgetsockopt_data*)arg;
|
|
sock = data->sock;
|
|
#ifdef LWIP_DEBUG
|
|
s = data->s;
|
|
#endif /* LWIP_DEBUG */
|
|
level = data->level;
|
|
optname = data->optname;
|
|
optval = data->optval;
|
|
|
|
switch (level) {
|
|
|
|
/* Level: SOL_SOCKET */
|
|
case SOL_SOCKET:
|
|
switch (optname) {
|
|
|
|
/* The option flags */
|
|
case SO_ACCEPTCONN:
|
|
case SO_BROADCAST:
|
|
/* UNIMPL case SO_DEBUG: */
|
|
/* UNIMPL case SO_DONTROUTE: */
|
|
case SO_KEEPALIVE:
|
|
/* UNIMPL case SO_OOBINCLUDE: */
|
|
#if SO_REUSE
|
|
case SO_REUSEADDR:
|
|
case SO_REUSEPORT:
|
|
#endif /* SO_REUSE */
|
|
/*case SO_USELOOPBACK: UNIMPL */
|
|
*(int*)optval = sock->conn->pcb.ip->so_options & optname;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
|
|
s, optname, (*(int*)optval?"on":"off")));
|
|
break;
|
|
|
|
case SO_TYPE:
|
|
switch (NETCONNTYPE_GROUP(sock->conn->type)) {
|
|
case NETCONN_RAW:
|
|
*(int*)optval = SOCK_RAW;
|
|
break;
|
|
case NETCONN_TCP:
|
|
*(int*)optval = SOCK_STREAM;
|
|
break;
|
|
case NETCONN_UDP:
|
|
*(int*)optval = SOCK_DGRAM;
|
|
break;
|
|
default: /* unrecognized socket type */
|
|
*(int*)optval = sock->conn->type;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG,
|
|
("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
|
|
s, *(int *)optval));
|
|
} /* switch (sock->conn->type) */
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
|
|
case SO_ERROR:
|
|
/* only overwrite if ERR_OK before */
|
|
if (sock->err == 0) {
|
|
sock_set_errno(sock, err_to_errno(sock->conn->last_err));
|
|
}
|
|
*(int *)optval = sock->err;
|
|
sock->err = 0;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
|
|
#if LWIP_SO_RCVTIMEO
|
|
case SO_RCVTIMEO:
|
|
*(int *)optval = netconn_get_recvtimeout(sock->conn);
|
|
break;
|
|
#endif /* LWIP_SO_RCVTIMEO */
|
|
#if LWIP_SO_RCVBUF
|
|
case SO_RCVBUF:
|
|
*(int *)optval = netconn_get_recvbufsize(sock->conn);
|
|
break;
|
|
#endif /* LWIP_SO_RCVBUF */
|
|
#if LWIP_UDP
|
|
case SO_NO_CHECK:
|
|
*(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
|
|
break;
|
|
#endif /* LWIP_UDP*/
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
/* Level: IPPROTO_IP */
|
|
case IPPROTO_IP:
|
|
switch (optname) {
|
|
case IP_TTL:
|
|
*(int*)optval = sock->conn->pcb.ip->ttl;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
case IP_TOS:
|
|
*(int*)optval = sock->conn->pcb.ip->tos;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
#if LWIP_IGMP
|
|
case IP_MULTICAST_TTL:
|
|
*(u8_t*)optval = sock->conn->pcb.ip->ttl;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
case IP_MULTICAST_IF:
|
|
inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
|
|
s, *(u32_t *)optval));
|
|
break;
|
|
case IP_MULTICAST_LOOP:
|
|
if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
|
|
*(u8_t*)optval = 1;
|
|
} else {
|
|
*(u8_t*)optval = 0;
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
#endif /* LWIP_IGMP */
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
#if LWIP_TCP
|
|
/* Level: IPPROTO_TCP */
|
|
case IPPROTO_TCP:
|
|
switch (optname) {
|
|
case TCP_NODELAY:
|
|
*(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
|
|
s, (*(int*)optval)?"on":"off") );
|
|
break;
|
|
case TCP_KEEPALIVE:
|
|
*(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
|
|
#if LWIP_TCP_KEEPALIVE
|
|
case TCP_KEEPIDLE:
|
|
*(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
case TCP_KEEPINTVL:
|
|
*(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
case TCP_KEEPCNT:
|
|
*(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
|
|
s, *(int *)optval));
|
|
break;
|
|
#endif /* LWIP_TCP_KEEPALIVE */
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_TCP */
|
|
#if LWIP_UDP && LWIP_UDPLITE
|
|
/* Level: IPPROTO_UDPLITE */
|
|
case IPPROTO_UDPLITE:
|
|
switch (optname) {
|
|
case UDPLITE_SEND_CSCOV:
|
|
*(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
|
|
s, (*(int*)optval)) );
|
|
break;
|
|
case UDPLITE_RECV_CSCOV:
|
|
*(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
|
|
s, (*(int*)optval)) );
|
|
break;
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_UDP */
|
|
default:
|
|
LWIP_ASSERT("unhandled level", 0);
|
|
break;
|
|
} /* switch (level) */
|
|
sys_sem_signal(&sock->conn->op_completed);
|
|
}
|
|
|
|
int
|
|
lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
|
|
{
|
|
struct lwip_sock *sock = get_socket(s);
|
|
err_t err = ERR_OK;
|
|
struct lwip_setgetsockopt_data data;
|
|
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
if (NULL == optval) {
|
|
sock_set_errno(sock, EFAULT);
|
|
return -1;
|
|
}
|
|
|
|
/* Do length and type checks for the various options first, to keep it readable. */
|
|
switch (level) {
|
|
|
|
/* Level: SOL_SOCKET */
|
|
case SOL_SOCKET:
|
|
switch (optname) {
|
|
|
|
case SO_BROADCAST:
|
|
/* UNIMPL case SO_DEBUG: */
|
|
/* UNIMPL case SO_DONTROUTE: */
|
|
case SO_KEEPALIVE:
|
|
/* UNIMPL case case SO_CONTIMEO: */
|
|
/* UNIMPL case case SO_SNDTIMEO: */
|
|
#if LWIP_SO_RCVTIMEO
|
|
case SO_RCVTIMEO:
|
|
#endif /* LWIP_SO_RCVTIMEO */
|
|
#if LWIP_SO_RCVBUF
|
|
case SO_RCVBUF:
|
|
#endif /* LWIP_SO_RCVBUF */
|
|
/* UNIMPL case SO_OOBINLINE: */
|
|
/* UNIMPL case SO_SNDBUF: */
|
|
/* UNIMPL case SO_RCVLOWAT: */
|
|
/* UNIMPL case SO_SNDLOWAT: */
|
|
#if SO_REUSE
|
|
case SO_REUSEADDR:
|
|
case SO_REUSEPORT:
|
|
#endif /* SO_REUSE */
|
|
/* UNIMPL case SO_USELOOPBACK: */
|
|
if (optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
case SO_NO_CHECK:
|
|
if (optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
#if LWIP_UDP
|
|
if ((sock->conn->type != NETCONN_UDP) ||
|
|
((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
|
|
/* this flag is only available for UDP, not for UDP lite */
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
#endif /* LWIP_UDP */
|
|
break;
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
/* Level: IPPROTO_IP */
|
|
case IPPROTO_IP:
|
|
switch (optname) {
|
|
/* UNIMPL case IP_HDRINCL: */
|
|
/* UNIMPL case IP_RCVDSTADDR: */
|
|
/* UNIMPL case IP_RCVIF: */
|
|
case IP_TTL:
|
|
case IP_TOS:
|
|
if (optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
}
|
|
break;
|
|
#if LWIP_IGMP
|
|
case IP_MULTICAST_TTL:
|
|
if (optlen < sizeof(u8_t)) {
|
|
err = EINVAL;
|
|
}
|
|
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
break;
|
|
case IP_MULTICAST_IF:
|
|
if (optlen < sizeof(struct in_addr)) {
|
|
err = EINVAL;
|
|
}
|
|
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
break;
|
|
case IP_MULTICAST_LOOP:
|
|
if (optlen < sizeof(u8_t)) {
|
|
err = EINVAL;
|
|
}
|
|
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
break;
|
|
case IP_ADD_MEMBERSHIP:
|
|
case IP_DROP_MEMBERSHIP:
|
|
if (optlen < sizeof(struct ip_mreq)) {
|
|
err = EINVAL;
|
|
}
|
|
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
|
|
err = EAFNOSUPPORT;
|
|
}
|
|
break;
|
|
#endif /* LWIP_IGMP */
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
#if LWIP_TCP
|
|
/* Level: IPPROTO_TCP */
|
|
case IPPROTO_TCP:
|
|
if (optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
/* If this is no TCP socket, ignore any options. */
|
|
if (sock->conn->type != NETCONN_TCP)
|
|
return 0;
|
|
|
|
switch (optname) {
|
|
case TCP_NODELAY:
|
|
case TCP_KEEPALIVE:
|
|
#if LWIP_TCP_KEEPALIVE
|
|
case TCP_KEEPIDLE:
|
|
case TCP_KEEPINTVL:
|
|
case TCP_KEEPCNT:
|
|
#endif /* LWIP_TCP_KEEPALIVE */
|
|
break;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_TCP */
|
|
#if LWIP_UDP && LWIP_UDPLITE
|
|
/* Level: IPPROTO_UDPLITE */
|
|
case IPPROTO_UDPLITE:
|
|
if (optlen < sizeof(int)) {
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
/* If this is no UDP lite socket, ignore any options. */
|
|
if (sock->conn->type != NETCONN_UDPLITE)
|
|
return 0;
|
|
|
|
switch (optname) {
|
|
case UDPLITE_SEND_CSCOV:
|
|
case UDPLITE_RECV_CSCOV:
|
|
break;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
|
|
s, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_UDP && LWIP_UDPLITE */
|
|
/* UNDEFINED LEVEL */
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
|
|
s, level, optname));
|
|
err = ENOPROTOOPT;
|
|
} /* switch (level) */
|
|
|
|
|
|
if (err != ERR_OK) {
|
|
sock_set_errno(sock, err);
|
|
return -1;
|
|
}
|
|
|
|
|
|
/* Now do the actual option processing */
|
|
data.sock = sock;
|
|
data.level = level;
|
|
data.optname = optname;
|
|
data.optval = (void*)optval;
|
|
data.optlen = &optlen;
|
|
data.err = err;
|
|
tcpip_callback(lwip_setsockopt_internal, &data);
|
|
sys_arch_sem_wait(&sock->conn->op_completed, 0);
|
|
/* maybe lwip_setsockopt_internal has changed err */
|
|
err = data.err;
|
|
|
|
sock_set_errno(sock, err);
|
|
return err ? -1 : 0;
|
|
}
|
|
|
|
static void
|
|
lwip_setsockopt_internal(void *arg)
|
|
{
|
|
struct lwip_sock *sock;
|
|
#ifdef LWIP_DEBUG
|
|
int s;
|
|
#endif /* LWIP_DEBUG */
|
|
int level, optname;
|
|
const void *optval;
|
|
struct lwip_setgetsockopt_data *data;
|
|
|
|
LWIP_ASSERT("arg != NULL", arg != NULL);
|
|
|
|
data = (struct lwip_setgetsockopt_data*)arg;
|
|
sock = data->sock;
|
|
#ifdef LWIP_DEBUG
|
|
s = data->s;
|
|
#endif /* LWIP_DEBUG */
|
|
level = data->level;
|
|
optname = data->optname;
|
|
optval = data->optval;
|
|
|
|
switch (level) {
|
|
|
|
/* Level: SOL_SOCKET */
|
|
case SOL_SOCKET:
|
|
switch (optname) {
|
|
|
|
/* The option flags */
|
|
case SO_BROADCAST:
|
|
/* UNIMPL case SO_DEBUG: */
|
|
/* UNIMPL case SO_DONTROUTE: */
|
|
case SO_KEEPALIVE:
|
|
/* UNIMPL case SO_OOBINCLUDE: */
|
|
#if SO_REUSE
|
|
case SO_REUSEADDR:
|
|
case SO_REUSEPORT:
|
|
#endif /* SO_REUSE */
|
|
/* UNIMPL case SO_USELOOPBACK: */
|
|
if (*(int*)optval) {
|
|
sock->conn->pcb.ip->so_options |= optname;
|
|
} else {
|
|
sock->conn->pcb.ip->so_options &= ~optname;
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
|
|
s, optname, (*(int*)optval?"on":"off")));
|
|
break;
|
|
#if LWIP_SO_RCVTIMEO
|
|
case SO_RCVTIMEO:
|
|
netconn_set_recvtimeout(sock->conn, *(int*)optval);
|
|
break;
|
|
#endif /* LWIP_SO_RCVTIMEO */
|
|
#if LWIP_SO_RCVBUF
|
|
case SO_RCVBUF:
|
|
netconn_set_recvbufsize(sock->conn, *(int*)optval);
|
|
break;
|
|
#endif /* LWIP_SO_RCVBUF */
|
|
#if LWIP_UDP
|
|
case SO_NO_CHECK:
|
|
if (*(int*)optval) {
|
|
udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
|
|
} else {
|
|
udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
|
|
}
|
|
break;
|
|
#endif /* LWIP_UDP */
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
/* Level: IPPROTO_IP */
|
|
case IPPROTO_IP:
|
|
switch (optname) {
|
|
case IP_TTL:
|
|
sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
|
|
s, sock->conn->pcb.ip->ttl));
|
|
break;
|
|
case IP_TOS:
|
|
sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
|
|
s, sock->conn->pcb.ip->tos));
|
|
break;
|
|
#if LWIP_IGMP
|
|
case IP_MULTICAST_TTL:
|
|
sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
|
|
break;
|
|
case IP_MULTICAST_IF:
|
|
inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
|
|
break;
|
|
case IP_MULTICAST_LOOP:
|
|
if (*(u8_t*)optval) {
|
|
udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
|
|
} else {
|
|
udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
|
|
}
|
|
break;
|
|
case IP_ADD_MEMBERSHIP:
|
|
case IP_DROP_MEMBERSHIP:
|
|
{
|
|
/* If this is a TCP or a RAW socket, ignore these options. */
|
|
struct ip_mreq *imr = (struct ip_mreq *)optval;
|
|
ip_addr_t if_addr;
|
|
ip_addr_t multi_addr;
|
|
inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
|
|
inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
|
|
if(optname == IP_ADD_MEMBERSHIP){
|
|
data->err = igmp_joingroup(&if_addr, &multi_addr);
|
|
} else {
|
|
data->err = igmp_leavegroup(&if_addr, &multi_addr);
|
|
}
|
|
if(data->err != ERR_OK) {
|
|
data->err = EADDRNOTAVAIL;
|
|
}
|
|
}
|
|
break;
|
|
#endif /* LWIP_IGMP */
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
|
|
#if LWIP_TCP
|
|
/* Level: IPPROTO_TCP */
|
|
case IPPROTO_TCP:
|
|
switch (optname) {
|
|
case TCP_NODELAY:
|
|
if (*(int*)optval) {
|
|
tcp_nagle_disable(sock->conn->pcb.tcp);
|
|
} else {
|
|
tcp_nagle_enable(sock->conn->pcb.tcp);
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
|
|
s, (*(int *)optval)?"on":"off") );
|
|
break;
|
|
case TCP_KEEPALIVE:
|
|
sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
|
|
s, sock->conn->pcb.tcp->keep_idle));
|
|
break;
|
|
|
|
#if LWIP_TCP_KEEPALIVE
|
|
case TCP_KEEPIDLE:
|
|
sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
|
|
s, sock->conn->pcb.tcp->keep_idle));
|
|
break;
|
|
case TCP_KEEPINTVL:
|
|
sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
|
|
s, sock->conn->pcb.tcp->keep_intvl));
|
|
break;
|
|
case TCP_KEEPCNT:
|
|
sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
|
|
s, sock->conn->pcb.tcp->keep_cnt));
|
|
break;
|
|
#endif /* LWIP_TCP_KEEPALIVE */
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_TCP*/
|
|
#if LWIP_UDP && LWIP_UDPLITE
|
|
/* Level: IPPROTO_UDPLITE */
|
|
case IPPROTO_UDPLITE:
|
|
switch (optname) {
|
|
case UDPLITE_SEND_CSCOV:
|
|
if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
|
|
/* don't allow illegal values! */
|
|
sock->conn->pcb.udp->chksum_len_tx = 8;
|
|
} else {
|
|
sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
|
|
s, (*(int*)optval)) );
|
|
break;
|
|
case UDPLITE_RECV_CSCOV:
|
|
if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
|
|
/* don't allow illegal values! */
|
|
sock->conn->pcb.udp->chksum_len_rx = 8;
|
|
} else {
|
|
sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
|
|
}
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
|
|
s, (*(int*)optval)) );
|
|
break;
|
|
default:
|
|
LWIP_ASSERT("unhandled optname", 0);
|
|
break;
|
|
} /* switch (optname) */
|
|
break;
|
|
#endif /* LWIP_UDP */
|
|
default:
|
|
LWIP_ASSERT("unhandled level", 0);
|
|
break;
|
|
} /* switch (level) */
|
|
sys_sem_signal(&sock->conn->op_completed);
|
|
}
|
|
|
|
int
|
|
lwip_ioctl(int s, long cmd, void *argp)
|
|
{
|
|
struct lwip_sock *sock = get_socket(s);
|
|
u16_t buflen = 0;
|
|
s16_t recv_avail;
|
|
u8_t val;
|
|
|
|
if (!sock) {
|
|
return -1;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case FIONREAD:
|
|
if (!argp) {
|
|
sock_set_errno(sock, EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
|
|
if (recv_avail < 0) {
|
|
recv_avail = 0;
|
|
}
|
|
*((u16_t*)argp) = (u16_t)recv_avail;
|
|
|
|
/* Check if there is data left from the last recv operation. /maq 041215 */
|
|
if (sock->lastdata) {
|
|
struct pbuf *p = (struct pbuf *)sock->lastdata;
|
|
if (netconn_type(sock->conn) != NETCONN_TCP) {
|
|
p = ((struct netbuf *)p)->p;
|
|
}
|
|
buflen = p->tot_len;
|
|
buflen -= sock->lastoffset;
|
|
|
|
*((u16_t*)argp) += buflen;
|
|
}
|
|
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
|
|
sock_set_errno(sock, 0);
|
|
return 0;
|
|
|
|
case FIONBIO:
|
|
val = 0;
|
|
if (argp && *(u32_t*)argp) {
|
|
val = 1;
|
|
}
|
|
netconn_set_nonblocking(sock->conn, val);
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
|
|
sock_set_errno(sock, 0);
|
|
return 0;
|
|
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
|
|
sock_set_errno(sock, ENOSYS); /* not yet implemented */
|
|
return -1;
|
|
} /* switch (cmd) */
|
|
}
|
|
|
|
/** A minimal implementation of fcntl.
|
|
* Currently only the commands F_GETFL and F_SETFL are implemented.
|
|
* Only the flag O_NONBLOCK is implemented.
|
|
*/
|
|
int
|
|
lwip_fcntl(int s, int cmd, int val)
|
|
{
|
|
struct lwip_sock *sock = get_socket(s);
|
|
int ret = -1;
|
|
|
|
if (!sock || !sock->conn) {
|
|
return -1;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case F_GETFL:
|
|
ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
|
|
break;
|
|
case F_SETFL:
|
|
if ((val & ~O_NONBLOCK) == 0) {
|
|
/* only O_NONBLOCK, all other bits are zero */
|
|
netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
|
|
ret = 0;
|
|
}
|
|
break;
|
|
default:
|
|
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#endif /* LWIP_SOCKET */
|