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