Adam Green / EthernetInterface

Deprecated fork of old network stack source from github. Please use official library instead: https://mbed.org/users/mbed_official/code/EthernetInterface/

lwip/api/sockets.c@1:eadc868c2acf, 2013-10-26 (annotated)

Committer:
AdamGreen
Date:
Sat Oct 26 08:51:36 2013 +0000
Revision:
1:eadc868c2acf
Parent:
0:3b00827bb0b7 
Fix TCP checksum bug and stranded large TCP segments.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:3b00827bb0b7 1 /**
AdamGreen 0:3b00827bb0b7 2 * @file
AdamGreen 0:3b00827bb0b7 3 * Sockets BSD-Like API module
AdamGreen 0:3b00827bb0b7 4 *
AdamGreen 0:3b00827bb0b7 5 */
AdamGreen 0:3b00827bb0b7 6
AdamGreen 0:3b00827bb0b7 7 /*
AdamGreen 0:3b00827bb0b7 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
AdamGreen 0:3b00827bb0b7 9 * All rights reserved.
AdamGreen 0:3b00827bb0b7 10 *
AdamGreen 0:3b00827bb0b7 11 * Redistribution and use in source and binary forms, with or without modification,
AdamGreen 0:3b00827bb0b7 12 * are permitted provided that the following conditions are met:
AdamGreen 0:3b00827bb0b7 13 *
AdamGreen 0:3b00827bb0b7 14 * 1. Redistributions of source code must retain the above copyright notice,
AdamGreen 0:3b00827bb0b7 15 * this list of conditions and the following disclaimer.
AdamGreen 0:3b00827bb0b7 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
AdamGreen 0:3b00827bb0b7 17 * this list of conditions and the following disclaimer in the documentation
AdamGreen 0:3b00827bb0b7 18 * and/or other materials provided with the distribution.
AdamGreen 0:3b00827bb0b7 19 * 3. The name of the author may not be used to endorse or promote products
AdamGreen 0:3b00827bb0b7 20 * derived from this software without specific prior written permission.
AdamGreen 0:3b00827bb0b7 21 *
AdamGreen 0:3b00827bb0b7 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
AdamGreen 0:3b00827bb0b7 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
AdamGreen 0:3b00827bb0b7 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
AdamGreen 0:3b00827bb0b7 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
AdamGreen 0:3b00827bb0b7 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
AdamGreen 0:3b00827bb0b7 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AdamGreen 0:3b00827bb0b7 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AdamGreen 0:3b00827bb0b7 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
AdamGreen 0:3b00827bb0b7 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
AdamGreen 0:3b00827bb0b7 31 * OF SUCH DAMAGE.
AdamGreen 0:3b00827bb0b7 32 *
AdamGreen 0:3b00827bb0b7 33 * This file is part of the lwIP TCP/IP stack.
AdamGreen 0:3b00827bb0b7 34 *
AdamGreen 0:3b00827bb0b7 35 * Author: Adam Dunkels <adam@sics.se>
AdamGreen 0:3b00827bb0b7 36 *
AdamGreen 0:3b00827bb0b7 37 * Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu>
AdamGreen 0:3b00827bb0b7 38 *
AdamGreen 0:3b00827bb0b7 39 */
AdamGreen 0:3b00827bb0b7 40
AdamGreen 0:3b00827bb0b7 41 #include "lwip/opt.h"
AdamGreen 0:3b00827bb0b7 42
AdamGreen 0:3b00827bb0b7 43 #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:3b00827bb0b7 44
AdamGreen 0:3b00827bb0b7 45 #include "lwip/sockets.h"
AdamGreen 0:3b00827bb0b7 46 #include "lwip/api.h"
AdamGreen 0:3b00827bb0b7 47 #include "lwip/sys.h"
AdamGreen 0:3b00827bb0b7 48 #include "lwip/igmp.h"
AdamGreen 0:3b00827bb0b7 49 #include "lwip/inet.h"
AdamGreen 0:3b00827bb0b7 50 #include "lwip/tcp.h"
AdamGreen 0:3b00827bb0b7 51 #include "lwip/raw.h"
AdamGreen 0:3b00827bb0b7 52 #include "lwip/udp.h"
AdamGreen 0:3b00827bb0b7 53 #include "lwip/tcpip.h"
AdamGreen 0:3b00827bb0b7 54 #include "lwip/pbuf.h"
AdamGreen 0:3b00827bb0b7 55 #if LWIP_CHECKSUM_ON_COPY
AdamGreen 0:3b00827bb0b7 56 #include "lwip/inet_chksum.h"
AdamGreen 0:3b00827bb0b7 57 #endif
AdamGreen 0:3b00827bb0b7 58
AdamGreen 0:3b00827bb0b7 59 #include <string.h>
AdamGreen 0:3b00827bb0b7 60
AdamGreen 0:3b00827bb0b7 61 #define NUM_SOCKETS MEMP_NUM_NETCONN
AdamGreen 0:3b00827bb0b7 62
AdamGreen 0:3b00827bb0b7 63 /** Contains all internal pointers and states used for a socket */
AdamGreen 0:3b00827bb0b7 64 struct lwip_sock {
AdamGreen 0:3b00827bb0b7 65 /** sockets currently are built on netconns, each socket has one netconn */
AdamGreen 0:3b00827bb0b7 66 struct netconn *conn;
AdamGreen 0:3b00827bb0b7 67 /** data that was left from the previous read */
AdamGreen 0:3b00827bb0b7 68 void *lastdata;
AdamGreen 0:3b00827bb0b7 69 /** offset in the data that was left from the previous read */
AdamGreen 0:3b00827bb0b7 70 u16_t lastoffset;
AdamGreen 0:3b00827bb0b7 71 /** number of times data was received, set by event_callback(),
AdamGreen 0:3b00827bb0b7 72 tested by the receive and select functions */
AdamGreen 0:3b00827bb0b7 73 s16_t rcvevent;
AdamGreen 0:3b00827bb0b7 74 /** number of times data was ACKed (free send buffer), set by event_callback(),
AdamGreen 0:3b00827bb0b7 75 tested by select */
AdamGreen 0:3b00827bb0b7 76 u16_t sendevent;
AdamGreen 0:3b00827bb0b7 77 /** error happened for this socket, set by event_callback(), tested by select */
AdamGreen 0:3b00827bb0b7 78 u16_t errevent;
AdamGreen 0:3b00827bb0b7 79 /** last error that occurred on this socket */
AdamGreen 0:3b00827bb0b7 80 int err;
AdamGreen 0:3b00827bb0b7 81 /** counter of how many threads are waiting for this socket using select */
AdamGreen 0:3b00827bb0b7 82 int select_waiting;
AdamGreen 0:3b00827bb0b7 83 };
AdamGreen 0:3b00827bb0b7 84
AdamGreen 0:3b00827bb0b7 85 /** Description for a task waiting in select */
AdamGreen 0:3b00827bb0b7 86 struct lwip_select_cb {
AdamGreen 0:3b00827bb0b7 87 /** Pointer to the next waiting task */
AdamGreen 0:3b00827bb0b7 88 struct lwip_select_cb *next;
AdamGreen 0:3b00827bb0b7 89 /** Pointer to the previous waiting task */
AdamGreen 0:3b00827bb0b7 90 struct lwip_select_cb *prev;
AdamGreen 0:3b00827bb0b7 91 /** readset passed to select */
AdamGreen 0:3b00827bb0b7 92 fd_set *readset;
AdamGreen 0:3b00827bb0b7 93 /** writeset passed to select */
AdamGreen 0:3b00827bb0b7 94 fd_set *writeset;
AdamGreen 0:3b00827bb0b7 95 /** unimplemented: exceptset passed to select */
AdamGreen 0:3b00827bb0b7 96 fd_set *exceptset;
AdamGreen 0:3b00827bb0b7 97 /** don't signal the same semaphore twice: set to 1 when signalled */
AdamGreen 0:3b00827bb0b7 98 int sem_signalled;
AdamGreen 0:3b00827bb0b7 99 /** semaphore to wake up a task waiting for select */
AdamGreen 0:3b00827bb0b7 100 sys_sem_t sem;
AdamGreen 0:3b00827bb0b7 101 };
AdamGreen 0:3b00827bb0b7 102
AdamGreen 0:3b00827bb0b7 103 /** This struct is used to pass data to the set/getsockopt_internal
AdamGreen 0:3b00827bb0b7 104 * functions running in tcpip_thread context (only a void* is allowed) */
AdamGreen 0:3b00827bb0b7 105 struct lwip_setgetsockopt_data {
AdamGreen 0:3b00827bb0b7 106 /** socket struct for which to change options */
AdamGreen 0:3b00827bb0b7 107 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 108 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 109 /** socket index for which to change options */
AdamGreen 0:3b00827bb0b7 110 int s;
AdamGreen 0:3b00827bb0b7 111 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 112 /** level of the option to process */
AdamGreen 0:3b00827bb0b7 113 int level;
AdamGreen 0:3b00827bb0b7 114 /** name of the option to process */
AdamGreen 0:3b00827bb0b7 115 int optname;
AdamGreen 0:3b00827bb0b7 116 /** set: value to set the option to
AdamGreen 0:3b00827bb0b7 117 * get: value of the option is stored here */
AdamGreen 0:3b00827bb0b7 118 void *optval;
AdamGreen 0:3b00827bb0b7 119 /** size of *optval */
AdamGreen 0:3b00827bb0b7 120 socklen_t *optlen;
AdamGreen 0:3b00827bb0b7 121 /** if an error occures, it is temporarily stored here */
AdamGreen 0:3b00827bb0b7 122 err_t err;
AdamGreen 0:3b00827bb0b7 123 };
AdamGreen 0:3b00827bb0b7 124
AdamGreen 0:3b00827bb0b7 125 /** The global array of available sockets */
AdamGreen 0:3b00827bb0b7 126 static struct lwip_sock sockets[NUM_SOCKETS];
AdamGreen 0:3b00827bb0b7 127 /** The global list of tasks waiting for select */
AdamGreen 0:3b00827bb0b7 128 static struct lwip_select_cb *select_cb_list;
AdamGreen 0:3b00827bb0b7 129 /** This counter is increased from lwip_select when the list is chagned
AdamGreen 0:3b00827bb0b7 130 and checked in event_callback to see if it has changed. */
AdamGreen 0:3b00827bb0b7 131 static volatile int select_cb_ctr;
AdamGreen 0:3b00827bb0b7 132
AdamGreen 0:3b00827bb0b7 133 /** Table to quickly map an lwIP error (err_t) to a socket error
AdamGreen 0:3b00827bb0b7 134 * by using -err as an index */
AdamGreen 0:3b00827bb0b7 135 static const int err_to_errno_table[] = {
AdamGreen 0:3b00827bb0b7 136 0, /* ERR_OK 0 No error, everything OK. */
AdamGreen 0:3b00827bb0b7 137 ENOMEM, /* ERR_MEM -1 Out of memory error. */
AdamGreen 0:3b00827bb0b7 138 ENOBUFS, /* ERR_BUF -2 Buffer error. */
AdamGreen 0:3b00827bb0b7 139 EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
AdamGreen 0:3b00827bb0b7 140 EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
AdamGreen 0:3b00827bb0b7 141 EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
AdamGreen 0:3b00827bb0b7 142 EINVAL, /* ERR_VAL -6 Illegal value. */
AdamGreen 0:3b00827bb0b7 143 EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
AdamGreen 0:3b00827bb0b7 144 EADDRINUSE, /* ERR_USE -8 Address in use. */
AdamGreen 0:3b00827bb0b7 145 EALREADY, /* ERR_ISCONN -9 Already connected. */
AdamGreen 0:3b00827bb0b7 146 ECONNABORTED, /* ERR_ABRT -10 Connection aborted. */
AdamGreen 0:3b00827bb0b7 147 ECONNRESET, /* ERR_RST -11 Connection reset. */
AdamGreen 0:3b00827bb0b7 148 ENOTCONN, /* ERR_CLSD -12 Connection closed. */
AdamGreen 0:3b00827bb0b7 149 ENOTCONN, /* ERR_CONN -13 Not connected. */
AdamGreen 0:3b00827bb0b7 150 EIO, /* ERR_ARG -14 Illegal argument. */
AdamGreen 0:3b00827bb0b7 151 -1, /* ERR_IF -15 Low-level netif error */
AdamGreen 0:3b00827bb0b7 152 };
AdamGreen 0:3b00827bb0b7 153
AdamGreen 0:3b00827bb0b7 154 #define ERR_TO_ERRNO_TABLE_SIZE \
AdamGreen 0:3b00827bb0b7 155 (sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0]))
AdamGreen 0:3b00827bb0b7 156
AdamGreen 0:3b00827bb0b7 157 #define err_to_errno(err) \
AdamGreen 0:3b00827bb0b7 158 ((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \
AdamGreen 0:3b00827bb0b7 159 err_to_errno_table[-(err)] : EIO)
AdamGreen 0:3b00827bb0b7 160
AdamGreen 0:3b00827bb0b7 161 #ifdef ERRNO
AdamGreen 0:3b00827bb0b7 162 #ifndef set_errno
AdamGreen 0:3b00827bb0b7 163 #define set_errno(err) errno = (err)
AdamGreen 0:3b00827bb0b7 164 #endif
AdamGreen 0:3b00827bb0b7 165 #else /* ERRNO */
AdamGreen 0:3b00827bb0b7 166 #define set_errno(err)
AdamGreen 0:3b00827bb0b7 167 #endif /* ERRNO */
AdamGreen 0:3b00827bb0b7 168
AdamGreen 0:3b00827bb0b7 169 #define sock_set_errno(sk, e) do { \
AdamGreen 0:3b00827bb0b7 170 sk->err = (e); \
AdamGreen 0:3b00827bb0b7 171 set_errno(sk->err); \
AdamGreen 0:3b00827bb0b7 172 } while (0)
AdamGreen 0:3b00827bb0b7 173
AdamGreen 0:3b00827bb0b7 174 /* Forward delcaration of some functions */
AdamGreen 0:3b00827bb0b7 175 static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len);
AdamGreen 0:3b00827bb0b7 176 static void lwip_getsockopt_internal(void *arg);
AdamGreen 0:3b00827bb0b7 177 static void lwip_setsockopt_internal(void *arg);
AdamGreen 0:3b00827bb0b7 178
AdamGreen 0:3b00827bb0b7 179 /**
AdamGreen 0:3b00827bb0b7 180 * Initialize this module. This function has to be called before any other
AdamGreen 0:3b00827bb0b7 181 * functions in this module!
AdamGreen 0:3b00827bb0b7 182 */
AdamGreen 0:3b00827bb0b7 183 void
AdamGreen 0:3b00827bb0b7 184 lwip_socket_init(void)
AdamGreen 0:3b00827bb0b7 185 {
AdamGreen 0:3b00827bb0b7 186 }
AdamGreen 0:3b00827bb0b7 187
AdamGreen 0:3b00827bb0b7 188 /**
AdamGreen 0:3b00827bb0b7 189 * Map a externally used socket index to the internal socket representation.
AdamGreen 0:3b00827bb0b7 190 *
AdamGreen 0:3b00827bb0b7 191 * @param s externally used socket index
AdamGreen 0:3b00827bb0b7 192 * @return struct lwip_sock for the socket or NULL if not found
AdamGreen 0:3b00827bb0b7 193 */
AdamGreen 0:3b00827bb0b7 194 static struct lwip_sock *
AdamGreen 0:3b00827bb0b7 195 get_socket(int s)
AdamGreen 0:3b00827bb0b7 196 {
AdamGreen 0:3b00827bb0b7 197 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 198
AdamGreen 0:3b00827bb0b7 199 if ((s < 0) || (s >= NUM_SOCKETS)) {
AdamGreen 0:3b00827bb0b7 200 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s));
AdamGreen 0:3b00827bb0b7 201 set_errno(EBADF);
AdamGreen 0:3b00827bb0b7 202 return NULL;
AdamGreen 0:3b00827bb0b7 203 }
AdamGreen 0:3b00827bb0b7 204
AdamGreen 0:3b00827bb0b7 205 sock = &sockets[s];
AdamGreen 0:3b00827bb0b7 206
AdamGreen 0:3b00827bb0b7 207 if (!sock->conn) {
AdamGreen 0:3b00827bb0b7 208 LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s));
AdamGreen 0:3b00827bb0b7 209 set_errno(EBADF);
AdamGreen 0:3b00827bb0b7 210 return NULL;
AdamGreen 0:3b00827bb0b7 211 }
AdamGreen 0:3b00827bb0b7 212
AdamGreen 0:3b00827bb0b7 213 return sock;
AdamGreen 0:3b00827bb0b7 214 }
AdamGreen 0:3b00827bb0b7 215
AdamGreen 0:3b00827bb0b7 216 /**
AdamGreen 0:3b00827bb0b7 217 * Same as get_socket but doesn't set errno
AdamGreen 0:3b00827bb0b7 218 *
AdamGreen 0:3b00827bb0b7 219 * @param s externally used socket index
AdamGreen 0:3b00827bb0b7 220 * @return struct lwip_sock for the socket or NULL if not found
AdamGreen 0:3b00827bb0b7 221 */
AdamGreen 0:3b00827bb0b7 222 static struct lwip_sock *
AdamGreen 0:3b00827bb0b7 223 tryget_socket(int s)
AdamGreen 0:3b00827bb0b7 224 {
AdamGreen 0:3b00827bb0b7 225 if ((s < 0) || (s >= NUM_SOCKETS)) {
AdamGreen 0:3b00827bb0b7 226 return NULL;
AdamGreen 0:3b00827bb0b7 227 }
AdamGreen 0:3b00827bb0b7 228 if (!sockets[s].conn) {
AdamGreen 0:3b00827bb0b7 229 return NULL;
AdamGreen 0:3b00827bb0b7 230 }
AdamGreen 0:3b00827bb0b7 231 return &sockets[s];
AdamGreen 0:3b00827bb0b7 232 }
AdamGreen 0:3b00827bb0b7 233
AdamGreen 0:3b00827bb0b7 234 /**
AdamGreen 0:3b00827bb0b7 235 * Allocate a new socket for a given netconn.
AdamGreen 0:3b00827bb0b7 236 *
AdamGreen 0:3b00827bb0b7 237 * @param newconn the netconn for which to allocate a socket
AdamGreen 0:3b00827bb0b7 238 * @param accepted 1 if socket has been created by accept(),
AdamGreen 0:3b00827bb0b7 239 * 0 if socket has been created by socket()
AdamGreen 0:3b00827bb0b7 240 * @return the index of the new socket; -1 on error
AdamGreen 0:3b00827bb0b7 241 */
AdamGreen 0:3b00827bb0b7 242 static int
AdamGreen 0:3b00827bb0b7 243 alloc_socket(struct netconn *newconn, int accepted)
AdamGreen 0:3b00827bb0b7 244 {
AdamGreen 0:3b00827bb0b7 245 int i;
AdamGreen 0:3b00827bb0b7 246 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 247
AdamGreen 0:3b00827bb0b7 248 /* allocate a new socket identifier */
AdamGreen 0:3b00827bb0b7 249 for (i = 0; i < NUM_SOCKETS; ++i) {
AdamGreen 0:3b00827bb0b7 250 /* Protect socket array */
AdamGreen 0:3b00827bb0b7 251 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 252 if (!sockets[i].conn) {
AdamGreen 0:3b00827bb0b7 253 sockets[i].conn = newconn;
AdamGreen 0:3b00827bb0b7 254 /* The socket is not yet known to anyone, so no need to protect
AdamGreen 0:3b00827bb0b7 255 after having marked it as used. */
AdamGreen 0:3b00827bb0b7 256 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 257 sockets[i].lastdata = NULL;
AdamGreen 0:3b00827bb0b7 258 sockets[i].lastoffset = 0;
AdamGreen 0:3b00827bb0b7 259 sockets[i].rcvevent = 0;
AdamGreen 0:3b00827bb0b7 260 /* TCP sendbuf is empty, but the socket is not yet writable until connected
AdamGreen 0:3b00827bb0b7 261 * (unless it has been created by accept()). */
AdamGreen 0:3b00827bb0b7 262 sockets[i].sendevent = (newconn->type == NETCONN_TCP ? (accepted != 0) : 1);
AdamGreen 0:3b00827bb0b7 263 sockets[i].errevent = 0;
AdamGreen 0:3b00827bb0b7 264 sockets[i].err = 0;
AdamGreen 0:3b00827bb0b7 265 sockets[i].select_waiting = 0;
AdamGreen 0:3b00827bb0b7 266 return i;
AdamGreen 0:3b00827bb0b7 267 }
AdamGreen 0:3b00827bb0b7 268 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 269 }
AdamGreen 0:3b00827bb0b7 270 return -1;
AdamGreen 0:3b00827bb0b7 271 }
AdamGreen 0:3b00827bb0b7 272
AdamGreen 0:3b00827bb0b7 273 /** Free a socket. The socket's netconn must have been
AdamGreen 0:3b00827bb0b7 274 * delete before!
AdamGreen 0:3b00827bb0b7 275 *
AdamGreen 0:3b00827bb0b7 276 * @param sock the socket to free
AdamGreen 0:3b00827bb0b7 277 * @param is_tcp != 0 for TCP sockets, used to free lastdata
AdamGreen 0:3b00827bb0b7 278 */
AdamGreen 0:3b00827bb0b7 279 static void
AdamGreen 0:3b00827bb0b7 280 free_socket(struct lwip_sock *sock, int is_tcp)
AdamGreen 0:3b00827bb0b7 281 {
AdamGreen 0:3b00827bb0b7 282 void *lastdata;
AdamGreen 0:3b00827bb0b7 283 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 284
AdamGreen 0:3b00827bb0b7 285 lastdata = sock->lastdata;
AdamGreen 0:3b00827bb0b7 286 sock->lastdata = NULL;
AdamGreen 0:3b00827bb0b7 287 sock->lastoffset = 0;
AdamGreen 0:3b00827bb0b7 288 sock->err = 0;
AdamGreen 0:3b00827bb0b7 289
AdamGreen 0:3b00827bb0b7 290 /* Protect socket array */
AdamGreen 0:3b00827bb0b7 291 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 292 sock->conn = NULL;
AdamGreen 0:3b00827bb0b7 293 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 294 /* don't use 'sock' after this line, as another task might have allocated it */
AdamGreen 0:3b00827bb0b7 295
AdamGreen 0:3b00827bb0b7 296 if (lastdata != NULL) {
AdamGreen 0:3b00827bb0b7 297 if (is_tcp) {
AdamGreen 0:3b00827bb0b7 298 pbuf_free((struct pbuf *)lastdata);
AdamGreen 0:3b00827bb0b7 299 } else {
AdamGreen 0:3b00827bb0b7 300 netbuf_delete((struct netbuf *)lastdata);
AdamGreen 0:3b00827bb0b7 301 }
AdamGreen 0:3b00827bb0b7 302 }
AdamGreen 0:3b00827bb0b7 303 }
AdamGreen 0:3b00827bb0b7 304
AdamGreen 0:3b00827bb0b7 305 /* Below this, the well-known socket functions are implemented.
AdamGreen 0:3b00827bb0b7 306 * Use google.com or opengroup.org to get a good description :-)
AdamGreen 0:3b00827bb0b7 307 *
AdamGreen 0:3b00827bb0b7 308 * Exceptions are documented!
AdamGreen 0:3b00827bb0b7 309 */
AdamGreen 0:3b00827bb0b7 310
AdamGreen 0:3b00827bb0b7 311 int
AdamGreen 0:3b00827bb0b7 312 lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
AdamGreen 0:3b00827bb0b7 313 {
AdamGreen 0:3b00827bb0b7 314 struct lwip_sock *sock, *nsock;
AdamGreen 0:3b00827bb0b7 315 struct netconn *newconn;
AdamGreen 0:3b00827bb0b7 316 ip_addr_t naddr;
AdamGreen 0:3b00827bb0b7 317 u16_t port;
AdamGreen 0:3b00827bb0b7 318 int newsock;
AdamGreen 0:3b00827bb0b7 319 struct sockaddr_in sin;
AdamGreen 0:3b00827bb0b7 320 err_t err;
AdamGreen 0:3b00827bb0b7 321 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 322
AdamGreen 0:3b00827bb0b7 323 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s));
AdamGreen 0:3b00827bb0b7 324 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 325 if (!sock) {
AdamGreen 0:3b00827bb0b7 326 return -1;
AdamGreen 0:3b00827bb0b7 327 }
AdamGreen 0:3b00827bb0b7 328
AdamGreen 0:3b00827bb0b7 329 if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) {
AdamGreen 0:3b00827bb0b7 330 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s));
AdamGreen 0:3b00827bb0b7 331 sock_set_errno(sock, EWOULDBLOCK);
AdamGreen 0:3b00827bb0b7 332 return -1;
AdamGreen 0:3b00827bb0b7 333 }
AdamGreen 0:3b00827bb0b7 334
AdamGreen 0:3b00827bb0b7 335 /* wait for a new connection */
AdamGreen 0:3b00827bb0b7 336 err = netconn_accept(sock->conn, &newconn);
AdamGreen 0:3b00827bb0b7 337 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 338 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err));
AdamGreen 0:3b00827bb0b7 339 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 340 return -1;
AdamGreen 0:3b00827bb0b7 341 }
AdamGreen 0:3b00827bb0b7 342 LWIP_ASSERT("newconn != NULL", newconn != NULL);
AdamGreen 0:3b00827bb0b7 343 /* Prevent automatic window updates, we do this on our own! */
AdamGreen 0:3b00827bb0b7 344 netconn_set_noautorecved(newconn, 1);
AdamGreen 0:3b00827bb0b7 345
AdamGreen 0:3b00827bb0b7 346 /* get the IP address and port of the remote host */
AdamGreen 0:3b00827bb0b7 347 err = netconn_peer(newconn, &naddr, &port);
AdamGreen 0:3b00827bb0b7 348 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 349 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err));
AdamGreen 0:3b00827bb0b7 350 netconn_delete(newconn);
AdamGreen 0:3b00827bb0b7 351 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 352 return -1;
AdamGreen 0:3b00827bb0b7 353 }
AdamGreen 0:3b00827bb0b7 354
AdamGreen 0:3b00827bb0b7 355 /* Note that POSIX only requires us to check addr is non-NULL. addrlen must
AdamGreen 0:3b00827bb0b7 356 * not be NULL if addr is valid.
AdamGreen 0:3b00827bb0b7 357 */
AdamGreen 0:3b00827bb0b7 358 if (NULL != addr) {
AdamGreen 0:3b00827bb0b7 359 LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL);
AdamGreen 0:3b00827bb0b7 360 memset(&sin, 0, sizeof(sin));
AdamGreen 0:3b00827bb0b7 361 sin.sin_len = sizeof(sin);
AdamGreen 0:3b00827bb0b7 362 sin.sin_family = AF_INET;
AdamGreen 0:3b00827bb0b7 363 sin.sin_port = htons(port);
AdamGreen 0:3b00827bb0b7 364 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
AdamGreen 0:3b00827bb0b7 365
AdamGreen 0:3b00827bb0b7 366 if (*addrlen > sizeof(sin))
AdamGreen 0:3b00827bb0b7 367 *addrlen = sizeof(sin);
AdamGreen 0:3b00827bb0b7 368
AdamGreen 0:3b00827bb0b7 369 MEMCPY(addr, &sin, *addrlen);
AdamGreen 0:3b00827bb0b7 370 }
AdamGreen 0:3b00827bb0b7 371
AdamGreen 0:3b00827bb0b7 372 newsock = alloc_socket(newconn, 1);
AdamGreen 0:3b00827bb0b7 373 if (newsock == -1) {
AdamGreen 0:3b00827bb0b7 374 netconn_delete(newconn);
AdamGreen 0:3b00827bb0b7 375 sock_set_errno(sock, ENFILE);
AdamGreen 0:3b00827bb0b7 376 return -1;
AdamGreen 0:3b00827bb0b7 377 }
AdamGreen 0:3b00827bb0b7 378 LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS));
AdamGreen 0:3b00827bb0b7 379 LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback);
AdamGreen 0:3b00827bb0b7 380 nsock = &sockets[newsock];
AdamGreen 0:3b00827bb0b7 381
AdamGreen 0:3b00827bb0b7 382 /* See event_callback: If data comes in right away after an accept, even
AdamGreen 0:3b00827bb0b7 383 * though the server task might not have created a new socket yet.
AdamGreen 0:3b00827bb0b7 384 * In that case, newconn->socket is counted down (newconn->socket--),
AdamGreen 0:3b00827bb0b7 385 * so nsock->rcvevent is >= 1 here!
AdamGreen 0:3b00827bb0b7 386 */
AdamGreen 0:3b00827bb0b7 387 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 388 nsock->rcvevent += (s16_t)(-1 - newconn->socket);
AdamGreen 0:3b00827bb0b7 389 newconn->socket = newsock;
AdamGreen 0:3b00827bb0b7 390 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 391
AdamGreen 0:3b00827bb0b7 392 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock));
AdamGreen 0:3b00827bb0b7 393 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
AdamGreen 0:3b00827bb0b7 394 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port));
AdamGreen 0:3b00827bb0b7 395
AdamGreen 0:3b00827bb0b7 396 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 397 return newsock;
AdamGreen 0:3b00827bb0b7 398 }
AdamGreen 0:3b00827bb0b7 399
AdamGreen 0:3b00827bb0b7 400 int
AdamGreen 0:3b00827bb0b7 401 lwip_bind(int s, const struct sockaddr *name, socklen_t namelen)
AdamGreen 0:3b00827bb0b7 402 {
AdamGreen 0:3b00827bb0b7 403 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 404 ip_addr_t local_addr;
AdamGreen 0:3b00827bb0b7 405 u16_t local_port;
AdamGreen 0:3b00827bb0b7 406 err_t err;
AdamGreen 0:3b00827bb0b7 407 const struct sockaddr_in *name_in;
AdamGreen 0:3b00827bb0b7 408
AdamGreen 0:3b00827bb0b7 409 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 410 if (!sock) {
AdamGreen 0:3b00827bb0b7 411 return -1;
AdamGreen 0:3b00827bb0b7 412 }
AdamGreen 0:3b00827bb0b7 413
AdamGreen 0:3b00827bb0b7 414 /* check size, familiy and alignment of 'name' */
AdamGreen 0:3b00827bb0b7 415 LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
AdamGreen 0:3b00827bb0b7 416 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
AdamGreen 0:3b00827bb0b7 417 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AdamGreen 0:3b00827bb0b7 418 name_in = (const struct sockaddr_in *)(void*)name;
AdamGreen 0:3b00827bb0b7 419
AdamGreen 0:3b00827bb0b7 420 inet_addr_to_ipaddr(&local_addr, &name_in->sin_addr);
AdamGreen 0:3b00827bb0b7 421 local_port = name_in->sin_port;
AdamGreen 0:3b00827bb0b7 422
AdamGreen 0:3b00827bb0b7 423 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s));
AdamGreen 0:3b00827bb0b7 424 ip_addr_debug_print(SOCKETS_DEBUG, &local_addr);
AdamGreen 0:3b00827bb0b7 425 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(local_port)));
AdamGreen 0:3b00827bb0b7 426
AdamGreen 0:3b00827bb0b7 427 err = netconn_bind(sock->conn, &local_addr, ntohs(local_port));
AdamGreen 0:3b00827bb0b7 428
AdamGreen 0:3b00827bb0b7 429 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 430 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err));
AdamGreen 0:3b00827bb0b7 431 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 432 return -1;
AdamGreen 0:3b00827bb0b7 433 }
AdamGreen 0:3b00827bb0b7 434
AdamGreen 0:3b00827bb0b7 435 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s));
AdamGreen 0:3b00827bb0b7 436 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 437 return 0;
AdamGreen 0:3b00827bb0b7 438 }
AdamGreen 0:3b00827bb0b7 439
AdamGreen 0:3b00827bb0b7 440 int
AdamGreen 0:3b00827bb0b7 441 lwip_close(int s)
AdamGreen 0:3b00827bb0b7 442 {
AdamGreen 0:3b00827bb0b7 443 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 444 int is_tcp = 0;
AdamGreen 0:3b00827bb0b7 445
AdamGreen 0:3b00827bb0b7 446 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s));
AdamGreen 0:3b00827bb0b7 447
AdamGreen 0:3b00827bb0b7 448 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 449 if (!sock) {
AdamGreen 0:3b00827bb0b7 450 return -1;
AdamGreen 0:3b00827bb0b7 451 }
AdamGreen 0:3b00827bb0b7 452
AdamGreen 0:3b00827bb0b7 453 if(sock->conn != NULL) {
AdamGreen 0:3b00827bb0b7 454 is_tcp = netconn_type(sock->conn) == NETCONN_TCP;
AdamGreen 0:3b00827bb0b7 455 } else {
AdamGreen 0:3b00827bb0b7 456 LWIP_ASSERT("sock->lastdata == NULL", sock->lastdata == NULL);
AdamGreen 0:3b00827bb0b7 457 }
AdamGreen 0:3b00827bb0b7 458
AdamGreen 0:3b00827bb0b7 459 netconn_delete(sock->conn);
AdamGreen 0:3b00827bb0b7 460
AdamGreen 0:3b00827bb0b7 461 free_socket(sock, is_tcp);
AdamGreen 0:3b00827bb0b7 462 set_errno(0);
AdamGreen 0:3b00827bb0b7 463 return 0;
AdamGreen 0:3b00827bb0b7 464 }
AdamGreen 0:3b00827bb0b7 465
AdamGreen 0:3b00827bb0b7 466 int
AdamGreen 0:3b00827bb0b7 467 lwip_connect(int s, const struct sockaddr *name, socklen_t namelen)
AdamGreen 0:3b00827bb0b7 468 {
AdamGreen 0:3b00827bb0b7 469 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 470 err_t err;
AdamGreen 0:3b00827bb0b7 471 const struct sockaddr_in *name_in;
AdamGreen 0:3b00827bb0b7 472
AdamGreen 0:3b00827bb0b7 473 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 474 if (!sock) {
AdamGreen 0:3b00827bb0b7 475 return -1;
AdamGreen 0:3b00827bb0b7 476 }
AdamGreen 0:3b00827bb0b7 477
AdamGreen 0:3b00827bb0b7 478 /* check size, familiy and alignment of 'name' */
AdamGreen 0:3b00827bb0b7 479 LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) &&
AdamGreen 0:3b00827bb0b7 480 ((name->sa_family) == AF_INET) && ((((mem_ptr_t)name) % 4) == 0)),
AdamGreen 0:3b00827bb0b7 481 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AdamGreen 0:3b00827bb0b7 482 name_in = (const struct sockaddr_in *)(void*)name;
AdamGreen 0:3b00827bb0b7 483
AdamGreen 0:3b00827bb0b7 484 if (name_in->sin_family == AF_UNSPEC) {
AdamGreen 0:3b00827bb0b7 485 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s));
AdamGreen 0:3b00827bb0b7 486 err = netconn_disconnect(sock->conn);
AdamGreen 0:3b00827bb0b7 487 } else {
AdamGreen 0:3b00827bb0b7 488 ip_addr_t remote_addr;
AdamGreen 0:3b00827bb0b7 489 u16_t remote_port;
AdamGreen 0:3b00827bb0b7 490
AdamGreen 0:3b00827bb0b7 491 inet_addr_to_ipaddr(&remote_addr, &name_in->sin_addr);
AdamGreen 0:3b00827bb0b7 492 remote_port = name_in->sin_port;
AdamGreen 0:3b00827bb0b7 493
AdamGreen 0:3b00827bb0b7 494 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s));
AdamGreen 0:3b00827bb0b7 495 ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr);
AdamGreen 0:3b00827bb0b7 496 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", ntohs(remote_port)));
AdamGreen 0:3b00827bb0b7 497
AdamGreen 0:3b00827bb0b7 498 err = netconn_connect(sock->conn, &remote_addr, ntohs(remote_port));
AdamGreen 0:3b00827bb0b7 499 }
AdamGreen 0:3b00827bb0b7 500
AdamGreen 0:3b00827bb0b7 501 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 502 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err));
AdamGreen 0:3b00827bb0b7 503 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 504 return -1;
AdamGreen 0:3b00827bb0b7 505 }
AdamGreen 0:3b00827bb0b7 506
AdamGreen 0:3b00827bb0b7 507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s));
AdamGreen 0:3b00827bb0b7 508 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 509 return 0;
AdamGreen 0:3b00827bb0b7 510 }
AdamGreen 0:3b00827bb0b7 511
AdamGreen 0:3b00827bb0b7 512 /**
AdamGreen 0:3b00827bb0b7 513 * Set a socket into listen mode.
AdamGreen 0:3b00827bb0b7 514 * The socket may not have been used for another connection previously.
AdamGreen 0:3b00827bb0b7 515 *
AdamGreen 0:3b00827bb0b7 516 * @param s the socket to set to listening mode
AdamGreen 0:3b00827bb0b7 517 * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1)
AdamGreen 0:3b00827bb0b7 518 * @return 0 on success, non-zero on failure
AdamGreen 0:3b00827bb0b7 519 */
AdamGreen 0:3b00827bb0b7 520 int
AdamGreen 0:3b00827bb0b7 521 lwip_listen(int s, int backlog)
AdamGreen 0:3b00827bb0b7 522 {
AdamGreen 0:3b00827bb0b7 523 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 524 err_t err;
AdamGreen 0:3b00827bb0b7 525
AdamGreen 0:3b00827bb0b7 526 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog));
AdamGreen 0:3b00827bb0b7 527
AdamGreen 0:3b00827bb0b7 528 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 529 if (!sock) {
AdamGreen 0:3b00827bb0b7 530 return -1;
AdamGreen 0:3b00827bb0b7 531 }
AdamGreen 0:3b00827bb0b7 532
AdamGreen 0:3b00827bb0b7 533 /* limit the "backlog" parameter to fit in an u8_t */
AdamGreen 0:3b00827bb0b7 534 backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff);
AdamGreen 0:3b00827bb0b7 535
AdamGreen 0:3b00827bb0b7 536 err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog);
AdamGreen 0:3b00827bb0b7 537
AdamGreen 0:3b00827bb0b7 538 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 539 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err));
AdamGreen 0:3b00827bb0b7 540 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 541 return -1;
AdamGreen 0:3b00827bb0b7 542 }
AdamGreen 0:3b00827bb0b7 543
AdamGreen 0:3b00827bb0b7 544 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 545 return 0;
AdamGreen 0:3b00827bb0b7 546 }
AdamGreen 0:3b00827bb0b7 547
AdamGreen 0:3b00827bb0b7 548 int
AdamGreen 0:3b00827bb0b7 549 lwip_recvfrom(int s, void *mem, size_t len, int flags,
AdamGreen 0:3b00827bb0b7 550 struct sockaddr *from, socklen_t *fromlen)
AdamGreen 0:3b00827bb0b7 551 {
AdamGreen 0:3b00827bb0b7 552 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 553 void *buf = NULL;
AdamGreen 0:3b00827bb0b7 554 struct pbuf *p;
AdamGreen 0:3b00827bb0b7 555 u16_t buflen, copylen;
AdamGreen 0:3b00827bb0b7 556 int off = 0;
AdamGreen 0:3b00827bb0b7 557 ip_addr_t *addr;
AdamGreen 0:3b00827bb0b7 558 u16_t port;
AdamGreen 0:3b00827bb0b7 559 u8_t done = 0;
AdamGreen 0:3b00827bb0b7 560 err_t err;
AdamGreen 0:3b00827bb0b7 561
AdamGreen 0:3b00827bb0b7 562 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags));
AdamGreen 0:3b00827bb0b7 563 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 564 if (!sock) {
AdamGreen 0:3b00827bb0b7 565 return -1;
AdamGreen 0:3b00827bb0b7 566 }
AdamGreen 0:3b00827bb0b7 567
AdamGreen 0:3b00827bb0b7 568 do {
AdamGreen 0:3b00827bb0b7 569 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata));
AdamGreen 0:3b00827bb0b7 570 /* Check if there is data left from the last recv operation. */
AdamGreen 0:3b00827bb0b7 571 if (sock->lastdata) {
AdamGreen 0:3b00827bb0b7 572 buf = sock->lastdata;
AdamGreen 0:3b00827bb0b7 573 } else {
AdamGreen 0:3b00827bb0b7 574 /* If this is non-blocking call, then check first */
AdamGreen 0:3b00827bb0b7 575 if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) &&
AdamGreen 0:3b00827bb0b7 576 (sock->rcvevent <= 0)) {
AdamGreen 0:3b00827bb0b7 577 if (off > 0) {
AdamGreen 0:3b00827bb0b7 578 /* update receive window */
AdamGreen 0:3b00827bb0b7 579 netconn_recved(sock->conn, (u32_t)off);
AdamGreen 0:3b00827bb0b7 580 /* already received data, return that */
AdamGreen 0:3b00827bb0b7 581 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 582 return off;
AdamGreen 0:3b00827bb0b7 583 }
AdamGreen 0:3b00827bb0b7 584 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s));
AdamGreen 0:3b00827bb0b7 585 sock_set_errno(sock, EWOULDBLOCK);
AdamGreen 0:3b00827bb0b7 586 return -1;
AdamGreen 0:3b00827bb0b7 587 }
AdamGreen 0:3b00827bb0b7 588
AdamGreen 0:3b00827bb0b7 589 /* No data was left from the previous operation, so we try to get
AdamGreen 0:3b00827bb0b7 590 some from the network. */
AdamGreen 0:3b00827bb0b7 591 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 592 err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf);
AdamGreen 0:3b00827bb0b7 593 } else {
AdamGreen 0:3b00827bb0b7 594 err = netconn_recv(sock->conn, (struct netbuf **)&buf);
AdamGreen 0:3b00827bb0b7 595 }
AdamGreen 0:3b00827bb0b7 596 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n",
AdamGreen 0:3b00827bb0b7 597 err, buf));
AdamGreen 0:3b00827bb0b7 598
AdamGreen 0:3b00827bb0b7 599 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 600 if (off > 0) {
AdamGreen 0:3b00827bb0b7 601 /* update receive window */
AdamGreen 0:3b00827bb0b7 602 netconn_recved(sock->conn, (u32_t)off);
AdamGreen 0:3b00827bb0b7 603 /* already received data, return that */
AdamGreen 0:3b00827bb0b7 604 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 605 return off;
AdamGreen 0:3b00827bb0b7 606 }
AdamGreen 0:3b00827bb0b7 607 /* We should really do some error checking here. */
AdamGreen 0:3b00827bb0b7 608 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n",
AdamGreen 0:3b00827bb0b7 609 s, lwip_strerr(err)));
AdamGreen 0:3b00827bb0b7 610 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 611 if (err == ERR_CLSD) {
AdamGreen 0:3b00827bb0b7 612 return 0;
AdamGreen 0:3b00827bb0b7 613 } else {
AdamGreen 0:3b00827bb0b7 614 return -1;
AdamGreen 0:3b00827bb0b7 615 }
AdamGreen 0:3b00827bb0b7 616 }
AdamGreen 0:3b00827bb0b7 617 LWIP_ASSERT("buf != NULL", buf != NULL);
AdamGreen 0:3b00827bb0b7 618 sock->lastdata = buf;
AdamGreen 0:3b00827bb0b7 619 }
AdamGreen 0:3b00827bb0b7 620
AdamGreen 0:3b00827bb0b7 621 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 622 p = (struct pbuf *)buf;
AdamGreen 0:3b00827bb0b7 623 } else {
AdamGreen 0:3b00827bb0b7 624 p = ((struct netbuf *)buf)->p;
AdamGreen 0:3b00827bb0b7 625 }
AdamGreen 0:3b00827bb0b7 626 buflen = p->tot_len;
AdamGreen 0:3b00827bb0b7 627 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n",
AdamGreen 0:3b00827bb0b7 628 buflen, len, off, sock->lastoffset));
AdamGreen 0:3b00827bb0b7 629
AdamGreen 0:3b00827bb0b7 630 buflen -= sock->lastoffset;
AdamGreen 0:3b00827bb0b7 631
AdamGreen 0:3b00827bb0b7 632 if (len > buflen) {
AdamGreen 0:3b00827bb0b7 633 copylen = buflen;
AdamGreen 0:3b00827bb0b7 634 } else {
AdamGreen 0:3b00827bb0b7 635 copylen = (u16_t)len;
AdamGreen 0:3b00827bb0b7 636 }
AdamGreen 0:3b00827bb0b7 637
AdamGreen 0:3b00827bb0b7 638 /* copy the contents of the received buffer into
AdamGreen 0:3b00827bb0b7 639 the supplied memory pointer mem */
AdamGreen 0:3b00827bb0b7 640 pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset);
AdamGreen 0:3b00827bb0b7 641
AdamGreen 0:3b00827bb0b7 642 off += copylen;
AdamGreen 0:3b00827bb0b7 643
AdamGreen 0:3b00827bb0b7 644 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 645 LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen);
AdamGreen 0:3b00827bb0b7 646 len -= copylen;
AdamGreen 0:3b00827bb0b7 647 if ( (len <= 0) ||
AdamGreen 0:3b00827bb0b7 648 (p->flags & PBUF_FLAG_PUSH) ||
AdamGreen 0:3b00827bb0b7 649 (sock->rcvevent <= 0) ||
AdamGreen 0:3b00827bb0b7 650 ((flags & MSG_PEEK)!=0)) {
AdamGreen 0:3b00827bb0b7 651 done = 1;
AdamGreen 0:3b00827bb0b7 652 }
AdamGreen 0:3b00827bb0b7 653 } else {
AdamGreen 0:3b00827bb0b7 654 done = 1;
AdamGreen 0:3b00827bb0b7 655 }
AdamGreen 0:3b00827bb0b7 656
AdamGreen 0:3b00827bb0b7 657 /* Check to see from where the data was.*/
AdamGreen 0:3b00827bb0b7 658 if (done) {
AdamGreen 0:3b00827bb0b7 659 ip_addr_t fromaddr;
AdamGreen 0:3b00827bb0b7 660 if (from && fromlen) {
AdamGreen 0:3b00827bb0b7 661 struct sockaddr_in sin;
AdamGreen 0:3b00827bb0b7 662
AdamGreen 0:3b00827bb0b7 663 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 664 addr = &fromaddr;
AdamGreen 0:3b00827bb0b7 665 netconn_getaddr(sock->conn, addr, &port, 0);
AdamGreen 0:3b00827bb0b7 666 } else {
AdamGreen 0:3b00827bb0b7 667 addr = netbuf_fromaddr((struct netbuf *)buf);
AdamGreen 0:3b00827bb0b7 668 port = netbuf_fromport((struct netbuf *)buf);
AdamGreen 0:3b00827bb0b7 669 }
AdamGreen 0:3b00827bb0b7 670
AdamGreen 0:3b00827bb0b7 671 memset(&sin, 0, sizeof(sin));
AdamGreen 0:3b00827bb0b7 672 sin.sin_len = sizeof(sin);
AdamGreen 0:3b00827bb0b7 673 sin.sin_family = AF_INET;
AdamGreen 0:3b00827bb0b7 674 sin.sin_port = htons(port);
AdamGreen 0:3b00827bb0b7 675 inet_addr_from_ipaddr(&sin.sin_addr, addr);
AdamGreen 0:3b00827bb0b7 676
AdamGreen 0:3b00827bb0b7 677 if (*fromlen > sizeof(sin)) {
AdamGreen 0:3b00827bb0b7 678 *fromlen = sizeof(sin);
AdamGreen 0:3b00827bb0b7 679 }
AdamGreen 0:3b00827bb0b7 680
AdamGreen 0:3b00827bb0b7 681 MEMCPY(from, &sin, *fromlen);
AdamGreen 0:3b00827bb0b7 682
AdamGreen 0:3b00827bb0b7 683 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
AdamGreen 0:3b00827bb0b7 684 ip_addr_debug_print(SOCKETS_DEBUG, addr);
AdamGreen 0:3b00827bb0b7 685 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
AdamGreen 0:3b00827bb0b7 686 } else {
AdamGreen 0:3b00827bb0b7 687 #if SOCKETS_DEBUG
AdamGreen 0:3b00827bb0b7 688 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 689 addr = &fromaddr;
AdamGreen 0:3b00827bb0b7 690 netconn_getaddr(sock->conn, addr, &port, 0);
AdamGreen 0:3b00827bb0b7 691 } else {
AdamGreen 0:3b00827bb0b7 692 addr = netbuf_fromaddr((struct netbuf *)buf);
AdamGreen 0:3b00827bb0b7 693 port = netbuf_fromport((struct netbuf *)buf);
AdamGreen 0:3b00827bb0b7 694 }
AdamGreen 0:3b00827bb0b7 695
AdamGreen 0:3b00827bb0b7 696 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
AdamGreen 0:3b00827bb0b7 697 ip_addr_debug_print(SOCKETS_DEBUG, addr);
AdamGreen 0:3b00827bb0b7 698 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
AdamGreen 0:3b00827bb0b7 699 #endif /* SOCKETS_DEBUG */
AdamGreen 0:3b00827bb0b7 700 }
AdamGreen 0:3b00827bb0b7 701 }
AdamGreen 0:3b00827bb0b7 702
AdamGreen 0:3b00827bb0b7 703 /* If we don't peek the incoming message... */
AdamGreen 0:3b00827bb0b7 704 if ((flags & MSG_PEEK) == 0) {
AdamGreen 0:3b00827bb0b7 705 /* If this is a TCP socket, check if there is data left in the
AdamGreen 0:3b00827bb0b7 706 buffer. If so, it should be saved in the sock structure for next
AdamGreen 0:3b00827bb0b7 707 time around. */
AdamGreen 0:3b00827bb0b7 708 if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
AdamGreen 0:3b00827bb0b7 709 sock->lastdata = buf;
AdamGreen 0:3b00827bb0b7 710 sock->lastoffset += copylen;
AdamGreen 0:3b00827bb0b7 711 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf));
AdamGreen 0:3b00827bb0b7 712 } else {
AdamGreen 0:3b00827bb0b7 713 sock->lastdata = NULL;
AdamGreen 0:3b00827bb0b7 714 sock->lastoffset = 0;
AdamGreen 0:3b00827bb0b7 715 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf));
AdamGreen 0:3b00827bb0b7 716 if (netconn_type(sock->conn) == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 717 pbuf_free((struct pbuf *)buf);
AdamGreen 0:3b00827bb0b7 718 } else {
AdamGreen 0:3b00827bb0b7 719 netbuf_delete((struct netbuf *)buf);
AdamGreen 0:3b00827bb0b7 720 }
AdamGreen 0:3b00827bb0b7 721 }
AdamGreen 0:3b00827bb0b7 722 }
AdamGreen 0:3b00827bb0b7 723 } while (!done);
AdamGreen 0:3b00827bb0b7 724
AdamGreen 0:3b00827bb0b7 725 if (off > 0) {
AdamGreen 0:3b00827bb0b7 726 /* update receive window */
AdamGreen 0:3b00827bb0b7 727 netconn_recved(sock->conn, (u32_t)off);
AdamGreen 0:3b00827bb0b7 728 }
AdamGreen 0:3b00827bb0b7 729 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 730 return off;
AdamGreen 0:3b00827bb0b7 731 }
AdamGreen 0:3b00827bb0b7 732
AdamGreen 0:3b00827bb0b7 733 int
AdamGreen 0:3b00827bb0b7 734 lwip_read(int s, void *mem, size_t len)
AdamGreen 0:3b00827bb0b7 735 {
AdamGreen 0:3b00827bb0b7 736 return lwip_recvfrom(s, mem, len, 0, NULL, NULL);
AdamGreen 0:3b00827bb0b7 737 }
AdamGreen 0:3b00827bb0b7 738
AdamGreen 0:3b00827bb0b7 739 int
AdamGreen 0:3b00827bb0b7 740 lwip_recv(int s, void *mem, size_t len, int flags)
AdamGreen 0:3b00827bb0b7 741 {
AdamGreen 0:3b00827bb0b7 742 return lwip_recvfrom(s, mem, len, flags, NULL, NULL);
AdamGreen 0:3b00827bb0b7 743 }
AdamGreen 0:3b00827bb0b7 744
AdamGreen 0:3b00827bb0b7 745 int
AdamGreen 0:3b00827bb0b7 746 lwip_send(int s, const void *data, size_t size, int flags)
AdamGreen 0:3b00827bb0b7 747 {
AdamGreen 0:3b00827bb0b7 748 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 749 err_t err;
AdamGreen 0:3b00827bb0b7 750 u8_t write_flags;
AdamGreen 0:3b00827bb0b7 751
AdamGreen 0:3b00827bb0b7 752 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
AdamGreen 0:3b00827bb0b7 753 s, data, size, flags));
AdamGreen 0:3b00827bb0b7 754
AdamGreen 0:3b00827bb0b7 755 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 756 if (!sock) {
AdamGreen 0:3b00827bb0b7 757 return -1;
AdamGreen 0:3b00827bb0b7 758 }
AdamGreen 0:3b00827bb0b7 759
AdamGreen 0:3b00827bb0b7 760 if (sock->conn->type != NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 761 #if (LWIP_UDP || LWIP_RAW)
AdamGreen 0:3b00827bb0b7 762 return lwip_sendto(s, data, size, flags, NULL, 0);
AdamGreen 0:3b00827bb0b7 763 #else /* (LWIP_UDP || LWIP_RAW) */
AdamGreen 0:3b00827bb0b7 764 sock_set_errno(sock, err_to_errno(ERR_ARG));
AdamGreen 0:3b00827bb0b7 765 return -1;
AdamGreen 0:3b00827bb0b7 766 #endif /* (LWIP_UDP || LWIP_RAW) */
AdamGreen 0:3b00827bb0b7 767 }
AdamGreen 0:3b00827bb0b7 768
AdamGreen 0:3b00827bb0b7 769 if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
AdamGreen 0:3b00827bb0b7 770 if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
AdamGreen 0:3b00827bb0b7 771 /* too much data to ever send nonblocking! */
AdamGreen 0:3b00827bb0b7 772 sock_set_errno(sock, EMSGSIZE);
AdamGreen 0:3b00827bb0b7 773 return -1;
AdamGreen 0:3b00827bb0b7 774 }
AdamGreen 0:3b00827bb0b7 775 }
AdamGreen 0:3b00827bb0b7 776
AdamGreen 0:3b00827bb0b7 777 write_flags = NETCONN_COPY |
AdamGreen 0:3b00827bb0b7 778 ((flags & MSG_MORE) ? NETCONN_MORE : 0) |
AdamGreen 0:3b00827bb0b7 779 ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
AdamGreen 0:3b00827bb0b7 780 err = netconn_write(sock->conn, data, size, write_flags);
AdamGreen 0:3b00827bb0b7 781
AdamGreen 0:3b00827bb0b7 782 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
AdamGreen 0:3b00827bb0b7 783 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 784 return (err == ERR_OK ? (int)size : -1);
AdamGreen 0:3b00827bb0b7 785 }
AdamGreen 0:3b00827bb0b7 786
AdamGreen 0:3b00827bb0b7 787 int
AdamGreen 0:3b00827bb0b7 788 lwip_sendto(int s, const void *data, size_t size, int flags,
AdamGreen 0:3b00827bb0b7 789 const struct sockaddr *to, socklen_t tolen)
AdamGreen 0:3b00827bb0b7 790 {
AdamGreen 0:3b00827bb0b7 791 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 792 err_t err;
AdamGreen 0:3b00827bb0b7 793 u16_t short_size;
AdamGreen 0:3b00827bb0b7 794 const struct sockaddr_in *to_in;
AdamGreen 0:3b00827bb0b7 795 u16_t remote_port;
AdamGreen 0:3b00827bb0b7 796 #if !LWIP_TCPIP_CORE_LOCKING
AdamGreen 0:3b00827bb0b7 797 struct netbuf buf;
AdamGreen 0:3b00827bb0b7 798 #endif
AdamGreen 0:3b00827bb0b7 799
AdamGreen 0:3b00827bb0b7 800 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 801 if (!sock) {
AdamGreen 0:3b00827bb0b7 802 return -1;
AdamGreen 0:3b00827bb0b7 803 }
AdamGreen 0:3b00827bb0b7 804
AdamGreen 0:3b00827bb0b7 805 if (sock->conn->type == NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 806 #if LWIP_TCP
AdamGreen 0:3b00827bb0b7 807 return lwip_send(s, data, size, flags);
AdamGreen 0:3b00827bb0b7 808 #else /* LWIP_TCP */
AdamGreen 0:3b00827bb0b7 809 LWIP_UNUSED_ARG(flags);
AdamGreen 0:3b00827bb0b7 810 sock_set_errno(sock, err_to_errno(ERR_ARG));
AdamGreen 0:3b00827bb0b7 811 return -1;
AdamGreen 0:3b00827bb0b7 812 #endif /* LWIP_TCP */
AdamGreen 0:3b00827bb0b7 813 }
AdamGreen 0:3b00827bb0b7 814
AdamGreen 0:3b00827bb0b7 815 /* @todo: split into multiple sendto's? */
AdamGreen 0:3b00827bb0b7 816 LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff);
AdamGreen 0:3b00827bb0b7 817 short_size = (u16_t)size;
AdamGreen 0:3b00827bb0b7 818 LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) ||
AdamGreen 0:3b00827bb0b7 819 ((tolen == sizeof(struct sockaddr_in)) &&
AdamGreen 0:3b00827bb0b7 820 ((to->sa_family) == AF_INET) && ((((mem_ptr_t)to) % 4) == 0))),
AdamGreen 0:3b00827bb0b7 821 sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;);
AdamGreen 0:3b00827bb0b7 822 to_in = (const struct sockaddr_in *)(void*)to;
AdamGreen 0:3b00827bb0b7 823
AdamGreen 0:3b00827bb0b7 824 #if LWIP_TCPIP_CORE_LOCKING
AdamGreen 0:3b00827bb0b7 825 /* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */
AdamGreen 0:3b00827bb0b7 826 {
AdamGreen 0:3b00827bb0b7 827 struct pbuf* p;
AdamGreen 0:3b00827bb0b7 828 ip_addr_t *remote_addr;
AdamGreen 0:3b00827bb0b7 829
AdamGreen 0:3b00827bb0b7 830 #if LWIP_NETIF_TX_SINGLE_PBUF
AdamGreen 0:3b00827bb0b7 831 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_RAM);
AdamGreen 0:3b00827bb0b7 832 if (p != NULL) {
AdamGreen 0:3b00827bb0b7 833 #if LWIP_CHECKSUM_ON_COPY
AdamGreen 0:3b00827bb0b7 834 u16_t chksum = 0;
AdamGreen 0:3b00827bb0b7 835 if (sock->conn->type != NETCONN_RAW) {
AdamGreen 0:3b00827bb0b7 836 chksum = LWIP_CHKSUM_COPY(p->payload, data, short_size);
AdamGreen 0:3b00827bb0b7 837 } else
AdamGreen 0:3b00827bb0b7 838 #endif /* LWIP_CHECKSUM_ON_COPY */
AdamGreen 0:3b00827bb0b7 839 MEMCPY(p->payload, data, size);
AdamGreen 0:3b00827bb0b7 840 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 841 p = pbuf_alloc(PBUF_TRANSPORT, short_size, PBUF_REF);
AdamGreen 0:3b00827bb0b7 842 if (p != NULL) {
AdamGreen 0:3b00827bb0b7 843 p->payload = (void*)data;
AdamGreen 0:3b00827bb0b7 844 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 845
AdamGreen 0:3b00827bb0b7 846 if (to_in != NULL) {
AdamGreen 0:3b00827bb0b7 847 inet_addr_to_ipaddr_p(remote_addr, &to_in->sin_addr);
AdamGreen 0:3b00827bb0b7 848 remote_port = ntohs(to_in->sin_port);
AdamGreen 0:3b00827bb0b7 849 } else {
AdamGreen 0:3b00827bb0b7 850 remote_addr = &sock->conn->pcb.raw->remote_ip;
AdamGreen 0:3b00827bb0b7 851 if (sock->conn->type == NETCONN_RAW) {
AdamGreen 0:3b00827bb0b7 852 remote_port = 0;
AdamGreen 0:3b00827bb0b7 853 } else {
AdamGreen 0:3b00827bb0b7 854 remote_port = sock->conn->pcb.udp->remote_port;
AdamGreen 0:3b00827bb0b7 855 }
AdamGreen 0:3b00827bb0b7 856 }
AdamGreen 0:3b00827bb0b7 857
AdamGreen 0:3b00827bb0b7 858 LOCK_TCPIP_CORE();
AdamGreen 0:3b00827bb0b7 859 if (sock->conn->type == NETCONN_RAW) {
AdamGreen 0:3b00827bb0b7 860 err = sock->conn->last_err = raw_sendto(sock->conn->pcb.raw, p, remote_addr);
AdamGreen 0:3b00827bb0b7 861 } else {
AdamGreen 0:3b00827bb0b7 862 #if LWIP_UDP
AdamGreen 0:3b00827bb0b7 863 #if LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF
AdamGreen 0:3b00827bb0b7 864 err = sock->conn->last_err = udp_sendto_chksum(sock->conn->pcb.udp, p,
AdamGreen 0:3b00827bb0b7 865 remote_addr, remote_port, 1, chksum);
AdamGreen 0:3b00827bb0b7 866 #else /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 867 err = sock->conn->last_err = udp_sendto(sock->conn->pcb.udp, p,
AdamGreen 0:3b00827bb0b7 868 remote_addr, remote_port);
AdamGreen 0:3b00827bb0b7 869 #endif /* LWIP_CHECKSUM_ON_COPY && LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 870 #else /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 871 err = ERR_ARG;
AdamGreen 0:3b00827bb0b7 872 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 873 }
AdamGreen 0:3b00827bb0b7 874 UNLOCK_TCPIP_CORE();
AdamGreen 0:3b00827bb0b7 875
AdamGreen 0:3b00827bb0b7 876 pbuf_free(p);
AdamGreen 0:3b00827bb0b7 877 } else {
AdamGreen 0:3b00827bb0b7 878 err = ERR_MEM;
AdamGreen 0:3b00827bb0b7 879 }
AdamGreen 0:3b00827bb0b7 880 }
AdamGreen 0:3b00827bb0b7 881 #else /* LWIP_TCPIP_CORE_LOCKING */
AdamGreen 0:3b00827bb0b7 882 /* initialize a buffer */
AdamGreen 0:3b00827bb0b7 883 buf.p = buf.ptr = NULL;
AdamGreen 0:3b00827bb0b7 884 #if LWIP_CHECKSUM_ON_COPY
AdamGreen 0:3b00827bb0b7 885 buf.flags = 0;
AdamGreen 0:3b00827bb0b7 886 #endif /* LWIP_CHECKSUM_ON_COPY */
AdamGreen 0:3b00827bb0b7 887 if (to) {
AdamGreen 0:3b00827bb0b7 888 inet_addr_to_ipaddr(&buf.addr, &to_in->sin_addr);
AdamGreen 0:3b00827bb0b7 889 remote_port = ntohs(to_in->sin_port);
AdamGreen 0:3b00827bb0b7 890 netbuf_fromport(&buf) = remote_port;
AdamGreen 0:3b00827bb0b7 891 } else {
AdamGreen 0:3b00827bb0b7 892 remote_port = 0;
AdamGreen 0:3b00827bb0b7 893 ip_addr_set_any(&buf.addr);
AdamGreen 0:3b00827bb0b7 894 netbuf_fromport(&buf) = 0;
AdamGreen 0:3b00827bb0b7 895 }
AdamGreen 0:3b00827bb0b7 896
AdamGreen 0:3b00827bb0b7 897 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=",
AdamGreen 0:3b00827bb0b7 898 s, data, short_size, flags));
AdamGreen 0:3b00827bb0b7 899 ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr);
AdamGreen 0:3b00827bb0b7 900 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port));
AdamGreen 0:3b00827bb0b7 901
AdamGreen 0:3b00827bb0b7 902 /* make the buffer point to the data that should be sent */
AdamGreen 0:3b00827bb0b7 903 #if LWIP_NETIF_TX_SINGLE_PBUF
AdamGreen 0:3b00827bb0b7 904 /* Allocate a new netbuf and copy the data into it. */
AdamGreen 0:3b00827bb0b7 905 if (netbuf_alloc(&buf, short_size) == NULL) {
AdamGreen 0:3b00827bb0b7 906 err = ERR_MEM;
AdamGreen 0:3b00827bb0b7 907 } else {
AdamGreen 0:3b00827bb0b7 908 #if LWIP_CHECKSUM_ON_COPY
AdamGreen 0:3b00827bb0b7 909 if (sock->conn->type != NETCONN_RAW) {
AdamGreen 0:3b00827bb0b7 910 u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size);
AdamGreen 0:3b00827bb0b7 911 netbuf_set_chksum(&buf, chksum);
AdamGreen 0:3b00827bb0b7 912 err = ERR_OK;
AdamGreen 0:3b00827bb0b7 913 } else
AdamGreen 0:3b00827bb0b7 914 #endif /* LWIP_CHECKSUM_ON_COPY */
AdamGreen 0:3b00827bb0b7 915 {
AdamGreen 0:3b00827bb0b7 916 err = netbuf_take(&buf, data, short_size);
AdamGreen 0:3b00827bb0b7 917 }
AdamGreen 0:3b00827bb0b7 918 }
AdamGreen 0:3b00827bb0b7 919 #else /* LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 920 err = netbuf_ref(&buf, data, short_size);
AdamGreen 0:3b00827bb0b7 921 #endif /* LWIP_NETIF_TX_SINGLE_PBUF */
AdamGreen 0:3b00827bb0b7 922 if (err == ERR_OK) {
AdamGreen 0:3b00827bb0b7 923 /* send the data */
AdamGreen 0:3b00827bb0b7 924 err = netconn_send(sock->conn, &buf);
AdamGreen 0:3b00827bb0b7 925 }
AdamGreen 0:3b00827bb0b7 926
AdamGreen 0:3b00827bb0b7 927 /* deallocated the buffer */
AdamGreen 0:3b00827bb0b7 928 netbuf_free(&buf);
AdamGreen 0:3b00827bb0b7 929 #endif /* LWIP_TCPIP_CORE_LOCKING */
AdamGreen 0:3b00827bb0b7 930 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 931 return (err == ERR_OK ? short_size : -1);
AdamGreen 0:3b00827bb0b7 932 }
AdamGreen 0:3b00827bb0b7 933
AdamGreen 0:3b00827bb0b7 934 int
AdamGreen 0:3b00827bb0b7 935 lwip_socket(int domain, int type, int protocol)
AdamGreen 0:3b00827bb0b7 936 {
AdamGreen 0:3b00827bb0b7 937 struct netconn *conn;
AdamGreen 0:3b00827bb0b7 938 int i;
AdamGreen 0:3b00827bb0b7 939
AdamGreen 0:3b00827bb0b7 940 LWIP_UNUSED_ARG(domain);
AdamGreen 0:3b00827bb0b7 941
AdamGreen 0:3b00827bb0b7 942 /* create a netconn */
AdamGreen 0:3b00827bb0b7 943 switch (type) {
AdamGreen 0:3b00827bb0b7 944 case SOCK_RAW:
AdamGreen 0:3b00827bb0b7 945 conn = netconn_new_with_proto_and_callback(NETCONN_RAW, (u8_t)protocol, event_callback);
AdamGreen 0:3b00827bb0b7 946 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ",
AdamGreen 0:3b00827bb0b7 947 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AdamGreen 0:3b00827bb0b7 948 break;
AdamGreen 0:3b00827bb0b7 949 case SOCK_DGRAM:
AdamGreen 0:3b00827bb0b7 950 conn = netconn_new_with_callback( (protocol == IPPROTO_UDPLITE) ?
AdamGreen 0:3b00827bb0b7 951 NETCONN_UDPLITE : NETCONN_UDP, event_callback);
AdamGreen 0:3b00827bb0b7 952 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ",
AdamGreen 0:3b00827bb0b7 953 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AdamGreen 0:3b00827bb0b7 954 break;
AdamGreen 0:3b00827bb0b7 955 case SOCK_STREAM:
AdamGreen 0:3b00827bb0b7 956 conn = netconn_new_with_callback(NETCONN_TCP, event_callback);
AdamGreen 0:3b00827bb0b7 957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ",
AdamGreen 0:3b00827bb0b7 958 domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol));
AdamGreen 0:3b00827bb0b7 959 if (conn != NULL) {
AdamGreen 0:3b00827bb0b7 960 /* Prevent automatic window updates, we do this on our own! */
AdamGreen 0:3b00827bb0b7 961 netconn_set_noautorecved(conn, 1);
AdamGreen 0:3b00827bb0b7 962 }
AdamGreen 0:3b00827bb0b7 963 break;
AdamGreen 0:3b00827bb0b7 964 default:
AdamGreen 0:3b00827bb0b7 965 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n",
AdamGreen 0:3b00827bb0b7 966 domain, type, protocol));
AdamGreen 0:3b00827bb0b7 967 set_errno(EINVAL);
AdamGreen 0:3b00827bb0b7 968 return -1;
AdamGreen 0:3b00827bb0b7 969 }
AdamGreen 0:3b00827bb0b7 970
AdamGreen 0:3b00827bb0b7 971 if (!conn) {
AdamGreen 0:3b00827bb0b7 972 LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n"));
AdamGreen 0:3b00827bb0b7 973 set_errno(ENOBUFS);
AdamGreen 0:3b00827bb0b7 974 return -1;
AdamGreen 0:3b00827bb0b7 975 }
AdamGreen 0:3b00827bb0b7 976
AdamGreen 0:3b00827bb0b7 977 i = alloc_socket(conn, 0);
AdamGreen 0:3b00827bb0b7 978
AdamGreen 0:3b00827bb0b7 979 if (i == -1) {
AdamGreen 0:3b00827bb0b7 980 netconn_delete(conn);
AdamGreen 0:3b00827bb0b7 981 set_errno(ENFILE);
AdamGreen 0:3b00827bb0b7 982 return -1;
AdamGreen 0:3b00827bb0b7 983 }
AdamGreen 0:3b00827bb0b7 984 conn->socket = i;
AdamGreen 0:3b00827bb0b7 985 LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i));
AdamGreen 0:3b00827bb0b7 986 set_errno(0);
AdamGreen 0:3b00827bb0b7 987 return i;
AdamGreen 0:3b00827bb0b7 988 }
AdamGreen 0:3b00827bb0b7 989
AdamGreen 0:3b00827bb0b7 990 int
AdamGreen 0:3b00827bb0b7 991 lwip_write(int s, const void *data, size_t size)
AdamGreen 0:3b00827bb0b7 992 {
AdamGreen 0:3b00827bb0b7 993 return lwip_send(s, data, size, 0);
AdamGreen 0:3b00827bb0b7 994 }
AdamGreen 0:3b00827bb0b7 995
AdamGreen 0:3b00827bb0b7 996 /**
AdamGreen 0:3b00827bb0b7 997 * Go through the readset and writeset lists and see which socket of the sockets
AdamGreen 0:3b00827bb0b7 998 * set in the sets has events. On return, readset, writeset and exceptset have
AdamGreen 0:3b00827bb0b7 999 * the sockets enabled that had events.
AdamGreen 0:3b00827bb0b7 1000 *
AdamGreen 0:3b00827bb0b7 1001 * exceptset is not used for now!!!
AdamGreen 0:3b00827bb0b7 1002 *
AdamGreen 0:3b00827bb0b7 1003 * @param maxfdp1 the highest socket index in the sets
AdamGreen 0:3b00827bb0b7 1004 * @param readset_in: set of sockets to check for read events
AdamGreen 0:3b00827bb0b7 1005 * @param writeset_in: set of sockets to check for write events
AdamGreen 0:3b00827bb0b7 1006 * @param exceptset_in: set of sockets to check for error events
AdamGreen 0:3b00827bb0b7 1007 * @param readset_out: set of sockets that had read events
AdamGreen 0:3b00827bb0b7 1008 * @param writeset_out: set of sockets that had write events
AdamGreen 0:3b00827bb0b7 1009 * @param exceptset_out: set os sockets that had error events
AdamGreen 0:3b00827bb0b7 1010 * @return number of sockets that had events (read/write/exception) (>= 0)
AdamGreen 0:3b00827bb0b7 1011 */
AdamGreen 0:3b00827bb0b7 1012 static int
AdamGreen 0:3b00827bb0b7 1013 lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in,
AdamGreen 0:3b00827bb0b7 1014 fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out)
AdamGreen 0:3b00827bb0b7 1015 {
AdamGreen 0:3b00827bb0b7 1016 int i, nready = 0;
AdamGreen 0:3b00827bb0b7 1017 fd_set lreadset, lwriteset, lexceptset;
AdamGreen 0:3b00827bb0b7 1018 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 1019 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1020
AdamGreen 0:3b00827bb0b7 1021 FD_ZERO(&lreadset);
AdamGreen 0:3b00827bb0b7 1022 FD_ZERO(&lwriteset);
AdamGreen 0:3b00827bb0b7 1023 FD_ZERO(&lexceptset);
AdamGreen 0:3b00827bb0b7 1024
AdamGreen 0:3b00827bb0b7 1025 /* Go through each socket in each list to count number of sockets which
AdamGreen 0:3b00827bb0b7 1026 currently match */
AdamGreen 0:3b00827bb0b7 1027 for(i = 0; i < maxfdp1; i++) {
AdamGreen 0:3b00827bb0b7 1028 void* lastdata = NULL;
AdamGreen 0:3b00827bb0b7 1029 s16_t rcvevent = 0;
AdamGreen 0:3b00827bb0b7 1030 u16_t sendevent = 0;
AdamGreen 0:3b00827bb0b7 1031 u16_t errevent = 0;
AdamGreen 0:3b00827bb0b7 1032 /* First get the socket's status (protected)... */
AdamGreen 0:3b00827bb0b7 1033 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1034 sock = tryget_socket(i);
AdamGreen 0:3b00827bb0b7 1035 if (sock != NULL) {
AdamGreen 0:3b00827bb0b7 1036 lastdata = sock->lastdata;
AdamGreen 0:3b00827bb0b7 1037 rcvevent = sock->rcvevent;
AdamGreen 0:3b00827bb0b7 1038 sendevent = sock->sendevent;
AdamGreen 0:3b00827bb0b7 1039 errevent = sock->errevent;
AdamGreen 0:3b00827bb0b7 1040 }
AdamGreen 0:3b00827bb0b7 1041 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1042 /* ... then examine it: */
AdamGreen 0:3b00827bb0b7 1043 /* See if netconn of this socket is ready for read */
AdamGreen 0:3b00827bb0b7 1044 if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) {
AdamGreen 0:3b00827bb0b7 1045 FD_SET(i, &lreadset);
AdamGreen 0:3b00827bb0b7 1046 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i));
AdamGreen 0:3b00827bb0b7 1047 nready++;
AdamGreen 0:3b00827bb0b7 1048 }
AdamGreen 0:3b00827bb0b7 1049 /* See if netconn of this socket is ready for write */
AdamGreen 0:3b00827bb0b7 1050 if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) {
AdamGreen 0:3b00827bb0b7 1051 FD_SET(i, &lwriteset);
AdamGreen 0:3b00827bb0b7 1052 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i));
AdamGreen 0:3b00827bb0b7 1053 nready++;
AdamGreen 0:3b00827bb0b7 1054 }
AdamGreen 0:3b00827bb0b7 1055 /* See if netconn of this socket had an error */
AdamGreen 0:3b00827bb0b7 1056 if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) {
AdamGreen 0:3b00827bb0b7 1057 FD_SET(i, &lexceptset);
AdamGreen 0:3b00827bb0b7 1058 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i));
AdamGreen 0:3b00827bb0b7 1059 nready++;
AdamGreen 0:3b00827bb0b7 1060 }
AdamGreen 0:3b00827bb0b7 1061 }
AdamGreen 0:3b00827bb0b7 1062 /* copy local sets to the ones provided as arguments */
AdamGreen 0:3b00827bb0b7 1063 *readset_out = lreadset;
AdamGreen 0:3b00827bb0b7 1064 *writeset_out = lwriteset;
AdamGreen 0:3b00827bb0b7 1065 *exceptset_out = lexceptset;
AdamGreen 0:3b00827bb0b7 1066
AdamGreen 0:3b00827bb0b7 1067 LWIP_ASSERT("nready >= 0", nready >= 0);
AdamGreen 0:3b00827bb0b7 1068 return nready;
AdamGreen 0:3b00827bb0b7 1069 }
AdamGreen 0:3b00827bb0b7 1070
AdamGreen 0:3b00827bb0b7 1071 /**
AdamGreen 0:3b00827bb0b7 1072 * Processing exceptset is not yet implemented.
AdamGreen 0:3b00827bb0b7 1073 */
AdamGreen 0:3b00827bb0b7 1074 int
AdamGreen 0:3b00827bb0b7 1075 lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
AdamGreen 0:3b00827bb0b7 1076 struct timeval *timeout)
AdamGreen 0:3b00827bb0b7 1077 {
AdamGreen 0:3b00827bb0b7 1078 u32_t waitres = 0;
AdamGreen 0:3b00827bb0b7 1079 int nready;
AdamGreen 0:3b00827bb0b7 1080 fd_set lreadset, lwriteset, lexceptset;
AdamGreen 0:3b00827bb0b7 1081 u32_t msectimeout;
AdamGreen 0:3b00827bb0b7 1082 struct lwip_select_cb select_cb;
AdamGreen 0:3b00827bb0b7 1083 err_t err;
AdamGreen 0:3b00827bb0b7 1084 int i;
AdamGreen 0:3b00827bb0b7 1085 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1086
AdamGreen 0:3b00827bb0b7 1087 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n",
AdamGreen 0:3b00827bb0b7 1088 maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset,
AdamGreen 0:3b00827bb0b7 1089 timeout ? (s32_t)timeout->tv_sec : (s32_t)-1,
AdamGreen 0:3b00827bb0b7 1090 timeout ? (s32_t)timeout->tv_usec : (s32_t)-1));
AdamGreen 0:3b00827bb0b7 1091
AdamGreen 0:3b00827bb0b7 1092 /* Go through each socket in each list to count number of sockets which
AdamGreen 0:3b00827bb0b7 1093 currently match */
AdamGreen 0:3b00827bb0b7 1094 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AdamGreen 0:3b00827bb0b7 1095
AdamGreen 0:3b00827bb0b7 1096 /* If we don't have any current events, then suspend if we are supposed to */
AdamGreen 0:3b00827bb0b7 1097 if (!nready) {
AdamGreen 0:3b00827bb0b7 1098 if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) {
AdamGreen 0:3b00827bb0b7 1099 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n"));
AdamGreen 0:3b00827bb0b7 1100 /* This is OK as the local fdsets are empty and nready is zero,
AdamGreen 0:3b00827bb0b7 1101 or we would have returned earlier. */
AdamGreen 0:3b00827bb0b7 1102 goto return_copy_fdsets;
AdamGreen 0:3b00827bb0b7 1103 }
AdamGreen 0:3b00827bb0b7 1104
AdamGreen 0:3b00827bb0b7 1105 /* None ready: add our semaphore to list:
AdamGreen 0:3b00827bb0b7 1106 We don't actually need any dynamic memory. Our entry on the
AdamGreen 0:3b00827bb0b7 1107 list is only valid while we are in this function, so it's ok
AdamGreen 0:3b00827bb0b7 1108 to use local variables. */
AdamGreen 0:3b00827bb0b7 1109
AdamGreen 0:3b00827bb0b7 1110 select_cb.next = NULL;
AdamGreen 0:3b00827bb0b7 1111 select_cb.prev = NULL;
AdamGreen 0:3b00827bb0b7 1112 select_cb.readset = readset;
AdamGreen 0:3b00827bb0b7 1113 select_cb.writeset = writeset;
AdamGreen 0:3b00827bb0b7 1114 select_cb.exceptset = exceptset;
AdamGreen 0:3b00827bb0b7 1115 select_cb.sem_signalled = 0;
AdamGreen 0:3b00827bb0b7 1116 err = sys_sem_new(&select_cb.sem, 0);
AdamGreen 0:3b00827bb0b7 1117 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 1118 /* failed to create semaphore */
AdamGreen 0:3b00827bb0b7 1119 set_errno(ENOMEM);
AdamGreen 0:3b00827bb0b7 1120 return -1;
AdamGreen 0:3b00827bb0b7 1121 }
AdamGreen 0:3b00827bb0b7 1122
AdamGreen 0:3b00827bb0b7 1123 /* Protect the select_cb_list */
AdamGreen 0:3b00827bb0b7 1124 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1125
AdamGreen 0:3b00827bb0b7 1126 /* Put this select_cb on top of list */
AdamGreen 0:3b00827bb0b7 1127 select_cb.next = select_cb_list;
AdamGreen 0:3b00827bb0b7 1128 if (select_cb_list != NULL) {
AdamGreen 0:3b00827bb0b7 1129 select_cb_list->prev = &select_cb;
AdamGreen 0:3b00827bb0b7 1130 }
AdamGreen 0:3b00827bb0b7 1131 select_cb_list = &select_cb;
AdamGreen 0:3b00827bb0b7 1132 /* Increasing this counter tells even_callback that the list has changed. */
AdamGreen 0:3b00827bb0b7 1133 select_cb_ctr++;
AdamGreen 0:3b00827bb0b7 1134
AdamGreen 0:3b00827bb0b7 1135 /* Now we can safely unprotect */
AdamGreen 0:3b00827bb0b7 1136 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1137
AdamGreen 0:3b00827bb0b7 1138 /* Increase select_waiting for each socket we are interested in */
AdamGreen 0:3b00827bb0b7 1139 for(i = 0; i < maxfdp1; i++) {
AdamGreen 0:3b00827bb0b7 1140 if ((readset && FD_ISSET(i, readset)) ||
AdamGreen 0:3b00827bb0b7 1141 (writeset && FD_ISSET(i, writeset)) ||
AdamGreen 0:3b00827bb0b7 1142 (exceptset && FD_ISSET(i, exceptset))) {
AdamGreen 0:3b00827bb0b7 1143 struct lwip_sock *sock = tryget_socket(i);
AdamGreen 0:3b00827bb0b7 1144 LWIP_ASSERT("sock != NULL", sock != NULL);
AdamGreen 0:3b00827bb0b7 1145 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1146 sock->select_waiting++;
AdamGreen 0:3b00827bb0b7 1147 LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0);
AdamGreen 0:3b00827bb0b7 1148 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1149 }
AdamGreen 0:3b00827bb0b7 1150 }
AdamGreen 0:3b00827bb0b7 1151
AdamGreen 0:3b00827bb0b7 1152 /* Call lwip_selscan again: there could have been events between
AdamGreen 0:3b00827bb0b7 1153 the last scan (whithout us on the list) and putting us on the list! */
AdamGreen 0:3b00827bb0b7 1154 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AdamGreen 0:3b00827bb0b7 1155 if (!nready) {
AdamGreen 0:3b00827bb0b7 1156 /* Still none ready, just wait to be woken */
AdamGreen 0:3b00827bb0b7 1157 if (timeout == 0) {
AdamGreen 0:3b00827bb0b7 1158 /* Wait forever */
AdamGreen 0:3b00827bb0b7 1159 msectimeout = 0;
AdamGreen 0:3b00827bb0b7 1160 } else {
AdamGreen 0:3b00827bb0b7 1161 msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000));
AdamGreen 0:3b00827bb0b7 1162 if (msectimeout == 0) {
AdamGreen 0:3b00827bb0b7 1163 /* Wait 1ms at least (0 means wait forever) */
AdamGreen 0:3b00827bb0b7 1164 msectimeout = 1;
AdamGreen 0:3b00827bb0b7 1165 }
AdamGreen 0:3b00827bb0b7 1166 }
AdamGreen 0:3b00827bb0b7 1167
AdamGreen 0:3b00827bb0b7 1168 waitres = sys_arch_sem_wait(&select_cb.sem, msectimeout);
AdamGreen 0:3b00827bb0b7 1169 }
AdamGreen 0:3b00827bb0b7 1170 /* Increase select_waiting for each socket we are interested in */
AdamGreen 0:3b00827bb0b7 1171 for(i = 0; i < maxfdp1; i++) {
AdamGreen 0:3b00827bb0b7 1172 if ((readset && FD_ISSET(i, readset)) ||
AdamGreen 0:3b00827bb0b7 1173 (writeset && FD_ISSET(i, writeset)) ||
AdamGreen 0:3b00827bb0b7 1174 (exceptset && FD_ISSET(i, exceptset))) {
AdamGreen 0:3b00827bb0b7 1175 struct lwip_sock *sock = tryget_socket(i);
AdamGreen 0:3b00827bb0b7 1176 LWIP_ASSERT("sock != NULL", sock != NULL);
AdamGreen 0:3b00827bb0b7 1177 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1178 sock->select_waiting--;
AdamGreen 0:3b00827bb0b7 1179 LWIP_ASSERT("sock->select_waiting >= 0", sock->select_waiting >= 0);
AdamGreen 0:3b00827bb0b7 1180 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1181 }
AdamGreen 0:3b00827bb0b7 1182 }
AdamGreen 0:3b00827bb0b7 1183 /* Take us off the list */
AdamGreen 0:3b00827bb0b7 1184 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1185 if (select_cb.next != NULL) {
AdamGreen 0:3b00827bb0b7 1186 select_cb.next->prev = select_cb.prev;
AdamGreen 0:3b00827bb0b7 1187 }
AdamGreen 0:3b00827bb0b7 1188 if (select_cb_list == &select_cb) {
AdamGreen 0:3b00827bb0b7 1189 LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL);
AdamGreen 0:3b00827bb0b7 1190 select_cb_list = select_cb.next;
AdamGreen 0:3b00827bb0b7 1191 } else {
AdamGreen 0:3b00827bb0b7 1192 LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL);
AdamGreen 0:3b00827bb0b7 1193 select_cb.prev->next = select_cb.next;
AdamGreen 0:3b00827bb0b7 1194 }
AdamGreen 0:3b00827bb0b7 1195 /* Increasing this counter tells even_callback that the list has changed. */
AdamGreen 0:3b00827bb0b7 1196 select_cb_ctr++;
AdamGreen 0:3b00827bb0b7 1197 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1198
AdamGreen 0:3b00827bb0b7 1199 sys_sem_free(&select_cb.sem);
AdamGreen 0:3b00827bb0b7 1200 if (waitres == SYS_ARCH_TIMEOUT) {
AdamGreen 0:3b00827bb0b7 1201 /* Timeout */
AdamGreen 0:3b00827bb0b7 1202 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n"));
AdamGreen 0:3b00827bb0b7 1203 /* This is OK as the local fdsets are empty and nready is zero,
AdamGreen 0:3b00827bb0b7 1204 or we would have returned earlier. */
AdamGreen 0:3b00827bb0b7 1205 goto return_copy_fdsets;
AdamGreen 0:3b00827bb0b7 1206 }
AdamGreen 0:3b00827bb0b7 1207
AdamGreen 0:3b00827bb0b7 1208 /* See what's set */
AdamGreen 0:3b00827bb0b7 1209 nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset);
AdamGreen 0:3b00827bb0b7 1210 }
AdamGreen 0:3b00827bb0b7 1211
AdamGreen 0:3b00827bb0b7 1212 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready));
AdamGreen 0:3b00827bb0b7 1213 return_copy_fdsets:
AdamGreen 0:3b00827bb0b7 1214 set_errno(0);
AdamGreen 0:3b00827bb0b7 1215 if (readset) {
AdamGreen 0:3b00827bb0b7 1216 *readset = lreadset;
AdamGreen 0:3b00827bb0b7 1217 }
AdamGreen 0:3b00827bb0b7 1218 if (writeset) {
AdamGreen 0:3b00827bb0b7 1219 *writeset = lwriteset;
AdamGreen 0:3b00827bb0b7 1220 }
AdamGreen 0:3b00827bb0b7 1221 if (exceptset) {
AdamGreen 0:3b00827bb0b7 1222 *exceptset = lexceptset;
AdamGreen 0:3b00827bb0b7 1223 }
AdamGreen 0:3b00827bb0b7 1224
AdamGreen 0:3b00827bb0b7 1225
AdamGreen 0:3b00827bb0b7 1226 return nready;
AdamGreen 0:3b00827bb0b7 1227 }
AdamGreen 0:3b00827bb0b7 1228
AdamGreen 0:3b00827bb0b7 1229 /**
AdamGreen 0:3b00827bb0b7 1230 * Callback registered in the netconn layer for each socket-netconn.
AdamGreen 0:3b00827bb0b7 1231 * Processes recvevent (data available) and wakes up tasks waiting for select.
AdamGreen 0:3b00827bb0b7 1232 */
AdamGreen 0:3b00827bb0b7 1233 static void
AdamGreen 0:3b00827bb0b7 1234 event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len)
AdamGreen 0:3b00827bb0b7 1235 {
AdamGreen 0:3b00827bb0b7 1236 int s;
AdamGreen 0:3b00827bb0b7 1237 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 1238 struct lwip_select_cb *scb;
AdamGreen 0:3b00827bb0b7 1239 int last_select_cb_ctr;
AdamGreen 0:3b00827bb0b7 1240 SYS_ARCH_DECL_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1241
AdamGreen 0:3b00827bb0b7 1242 LWIP_UNUSED_ARG(len);
AdamGreen 0:3b00827bb0b7 1243
AdamGreen 0:3b00827bb0b7 1244 /* Get socket */
AdamGreen 0:3b00827bb0b7 1245 if (conn) {
AdamGreen 0:3b00827bb0b7 1246 s = conn->socket;
AdamGreen 0:3b00827bb0b7 1247 if (s < 0) {
AdamGreen 0:3b00827bb0b7 1248 /* Data comes in right away after an accept, even though
AdamGreen 0:3b00827bb0b7 1249 * the server task might not have created a new socket yet.
AdamGreen 0:3b00827bb0b7 1250 * Just count down (or up) if that's the case and we
AdamGreen 0:3b00827bb0b7 1251 * will use the data later. Note that only receive events
AdamGreen 0:3b00827bb0b7 1252 * can happen before the new socket is set up. */
AdamGreen 0:3b00827bb0b7 1253 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1254 if (conn->socket < 0) {
AdamGreen 0:3b00827bb0b7 1255 if (evt == NETCONN_EVT_RCVPLUS) {
AdamGreen 0:3b00827bb0b7 1256 conn->socket--;
AdamGreen 0:3b00827bb0b7 1257 }
AdamGreen 0:3b00827bb0b7 1258 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1259 return;
AdamGreen 0:3b00827bb0b7 1260 }
AdamGreen 0:3b00827bb0b7 1261 s = conn->socket;
AdamGreen 0:3b00827bb0b7 1262 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1263 }
AdamGreen 0:3b00827bb0b7 1264
AdamGreen 0:3b00827bb0b7 1265 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 1266 if (!sock) {
AdamGreen 0:3b00827bb0b7 1267 return;
AdamGreen 0:3b00827bb0b7 1268 }
AdamGreen 0:3b00827bb0b7 1269 } else {
AdamGreen 0:3b00827bb0b7 1270 return;
AdamGreen 0:3b00827bb0b7 1271 }
AdamGreen 0:3b00827bb0b7 1272
AdamGreen 0:3b00827bb0b7 1273 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1274 /* Set event as required */
AdamGreen 0:3b00827bb0b7 1275 switch (evt) {
AdamGreen 0:3b00827bb0b7 1276 case NETCONN_EVT_RCVPLUS:
AdamGreen 0:3b00827bb0b7 1277 sock->rcvevent++;
AdamGreen 0:3b00827bb0b7 1278 break;
AdamGreen 0:3b00827bb0b7 1279 case NETCONN_EVT_RCVMINUS:
AdamGreen 0:3b00827bb0b7 1280 sock->rcvevent--;
AdamGreen 0:3b00827bb0b7 1281 break;
AdamGreen 0:3b00827bb0b7 1282 case NETCONN_EVT_SENDPLUS:
AdamGreen 0:3b00827bb0b7 1283 sock->sendevent = 1;
AdamGreen 0:3b00827bb0b7 1284 break;
AdamGreen 0:3b00827bb0b7 1285 case NETCONN_EVT_SENDMINUS:
AdamGreen 0:3b00827bb0b7 1286 sock->sendevent = 0;
AdamGreen 0:3b00827bb0b7 1287 break;
AdamGreen 0:3b00827bb0b7 1288 case NETCONN_EVT_ERROR:
AdamGreen 0:3b00827bb0b7 1289 sock->errevent = 1;
AdamGreen 0:3b00827bb0b7 1290 break;
AdamGreen 0:3b00827bb0b7 1291 default:
AdamGreen 0:3b00827bb0b7 1292 LWIP_ASSERT("unknown event", 0);
AdamGreen 0:3b00827bb0b7 1293 break;
AdamGreen 0:3b00827bb0b7 1294 }
AdamGreen 0:3b00827bb0b7 1295
AdamGreen 0:3b00827bb0b7 1296 if (sock->select_waiting == 0) {
AdamGreen 0:3b00827bb0b7 1297 /* noone is waiting for this socket, no need to check select_cb_list */
AdamGreen 0:3b00827bb0b7 1298 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1299 return;
AdamGreen 0:3b00827bb0b7 1300 }
AdamGreen 0:3b00827bb0b7 1301
AdamGreen 0:3b00827bb0b7 1302 /* Now decide if anyone is waiting for this socket */
AdamGreen 0:3b00827bb0b7 1303 /* NOTE: This code goes through the select_cb_list list multiple times
AdamGreen 0:3b00827bb0b7 1304 ONLY IF a select was actually waiting. We go through the list the number
AdamGreen 0:3b00827bb0b7 1305 of waiting select calls + 1. This list is expected to be small. */
AdamGreen 0:3b00827bb0b7 1306
AdamGreen 0:3b00827bb0b7 1307 /* At this point, SYS_ARCH is still protected! */
AdamGreen 0:3b00827bb0b7 1308 again:
AdamGreen 0:3b00827bb0b7 1309 for (scb = select_cb_list; scb != NULL; scb = scb->next) {
AdamGreen 0:3b00827bb0b7 1310 if (scb->sem_signalled == 0) {
AdamGreen 0:3b00827bb0b7 1311 /* semaphore not signalled yet */
AdamGreen 0:3b00827bb0b7 1312 int do_signal = 0;
AdamGreen 0:3b00827bb0b7 1313 /* Test this select call for our socket */
AdamGreen 0:3b00827bb0b7 1314 if (sock->rcvevent > 0) {
AdamGreen 0:3b00827bb0b7 1315 if (scb->readset && FD_ISSET(s, scb->readset)) {
AdamGreen 0:3b00827bb0b7 1316 do_signal = 1;
AdamGreen 0:3b00827bb0b7 1317 }
AdamGreen 0:3b00827bb0b7 1318 }
AdamGreen 0:3b00827bb0b7 1319 if (sock->sendevent != 0) {
AdamGreen 0:3b00827bb0b7 1320 if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) {
AdamGreen 0:3b00827bb0b7 1321 do_signal = 1;
AdamGreen 0:3b00827bb0b7 1322 }
AdamGreen 0:3b00827bb0b7 1323 }
AdamGreen 0:3b00827bb0b7 1324 if (sock->errevent != 0) {
AdamGreen 0:3b00827bb0b7 1325 if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) {
AdamGreen 0:3b00827bb0b7 1326 do_signal = 1;
AdamGreen 0:3b00827bb0b7 1327 }
AdamGreen 0:3b00827bb0b7 1328 }
AdamGreen 0:3b00827bb0b7 1329 if (do_signal) {
AdamGreen 0:3b00827bb0b7 1330 scb->sem_signalled = 1;
AdamGreen 0:3b00827bb0b7 1331 /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might
AdamGreen 0:3b00827bb0b7 1332 lead to the select thread taking itself off the list, invalidagin the semaphore. */
AdamGreen 0:3b00827bb0b7 1333 sys_sem_signal(&scb->sem);
AdamGreen 0:3b00827bb0b7 1334 }
AdamGreen 0:3b00827bb0b7 1335 }
AdamGreen 0:3b00827bb0b7 1336 /* unlock interrupts with each step */
AdamGreen 0:3b00827bb0b7 1337 last_select_cb_ctr = select_cb_ctr;
AdamGreen 0:3b00827bb0b7 1338 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1339 /* this makes sure interrupt protection time is short */
AdamGreen 0:3b00827bb0b7 1340 SYS_ARCH_PROTECT(lev);
AdamGreen 0:3b00827bb0b7 1341 if (last_select_cb_ctr != select_cb_ctr) {
AdamGreen 0:3b00827bb0b7 1342 /* someone has changed select_cb_list, restart at the beginning */
AdamGreen 0:3b00827bb0b7 1343 goto again;
AdamGreen 0:3b00827bb0b7 1344 }
AdamGreen 0:3b00827bb0b7 1345 }
AdamGreen 0:3b00827bb0b7 1346 SYS_ARCH_UNPROTECT(lev);
AdamGreen 0:3b00827bb0b7 1347 }
AdamGreen 0:3b00827bb0b7 1348
AdamGreen 0:3b00827bb0b7 1349 /**
AdamGreen 0:3b00827bb0b7 1350 * Unimplemented: Close one end of a full-duplex connection.
AdamGreen 0:3b00827bb0b7 1351 * Currently, the full connection is closed.
AdamGreen 0:3b00827bb0b7 1352 */
AdamGreen 0:3b00827bb0b7 1353 int
AdamGreen 0:3b00827bb0b7 1354 lwip_shutdown(int s, int how)
AdamGreen 0:3b00827bb0b7 1355 {
AdamGreen 0:3b00827bb0b7 1356 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 1357 err_t err;
AdamGreen 0:3b00827bb0b7 1358 u8_t shut_rx = 0, shut_tx = 0;
AdamGreen 0:3b00827bb0b7 1359
AdamGreen 0:3b00827bb0b7 1360 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how));
AdamGreen 0:3b00827bb0b7 1361
AdamGreen 0:3b00827bb0b7 1362 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 1363 if (!sock) {
AdamGreen 0:3b00827bb0b7 1364 return -1;
AdamGreen 0:3b00827bb0b7 1365 }
AdamGreen 0:3b00827bb0b7 1366
AdamGreen 0:3b00827bb0b7 1367 if (sock->conn != NULL) {
AdamGreen 0:3b00827bb0b7 1368 if (netconn_type(sock->conn) != NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 1369 sock_set_errno(sock, EOPNOTSUPP);
AdamGreen 0:3b00827bb0b7 1370 return EOPNOTSUPP;
AdamGreen 0:3b00827bb0b7 1371 }
AdamGreen 0:3b00827bb0b7 1372 } else {
AdamGreen 0:3b00827bb0b7 1373 sock_set_errno(sock, ENOTCONN);
AdamGreen 0:3b00827bb0b7 1374 return ENOTCONN;
AdamGreen 0:3b00827bb0b7 1375 }
AdamGreen 0:3b00827bb0b7 1376
AdamGreen 0:3b00827bb0b7 1377 if (how == SHUT_RD) {
AdamGreen 0:3b00827bb0b7 1378 shut_rx = 1;
AdamGreen 0:3b00827bb0b7 1379 } else if (how == SHUT_WR) {
AdamGreen 0:3b00827bb0b7 1380 shut_tx = 1;
AdamGreen 0:3b00827bb0b7 1381 } else if(how == SHUT_RDWR) {
AdamGreen 0:3b00827bb0b7 1382 shut_rx = 1;
AdamGreen 0:3b00827bb0b7 1383 shut_tx = 1;
AdamGreen 0:3b00827bb0b7 1384 } else {
AdamGreen 0:3b00827bb0b7 1385 sock_set_errno(sock, EINVAL);
AdamGreen 0:3b00827bb0b7 1386 return EINVAL;
AdamGreen 0:3b00827bb0b7 1387 }
AdamGreen 0:3b00827bb0b7 1388 err = netconn_shutdown(sock->conn, shut_rx, shut_tx);
AdamGreen 0:3b00827bb0b7 1389
AdamGreen 0:3b00827bb0b7 1390 sock_set_errno(sock, err_to_errno(err));
AdamGreen 0:3b00827bb0b7 1391 return (err == ERR_OK ? 0 : -1);
AdamGreen 0:3b00827bb0b7 1392 }
AdamGreen 0:3b00827bb0b7 1393
AdamGreen 0:3b00827bb0b7 1394 static int
AdamGreen 0:3b00827bb0b7 1395 lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local)
AdamGreen 0:3b00827bb0b7 1396 {
AdamGreen 0:3b00827bb0b7 1397 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 1398 struct sockaddr_in sin;
AdamGreen 0:3b00827bb0b7 1399 ip_addr_t naddr;
AdamGreen 0:3b00827bb0b7 1400
AdamGreen 0:3b00827bb0b7 1401 sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 1402 if (!sock) {
AdamGreen 0:3b00827bb0b7 1403 return -1;
AdamGreen 0:3b00827bb0b7 1404 }
AdamGreen 0:3b00827bb0b7 1405
AdamGreen 0:3b00827bb0b7 1406 memset(&sin, 0, sizeof(sin));
AdamGreen 0:3b00827bb0b7 1407 sin.sin_len = sizeof(sin);
AdamGreen 0:3b00827bb0b7 1408 sin.sin_family = AF_INET;
AdamGreen 0:3b00827bb0b7 1409
AdamGreen 0:3b00827bb0b7 1410 /* get the IP address and port */
AdamGreen 0:3b00827bb0b7 1411 netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local);
AdamGreen 0:3b00827bb0b7 1412
AdamGreen 0:3b00827bb0b7 1413 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s));
AdamGreen 0:3b00827bb0b7 1414 ip_addr_debug_print(SOCKETS_DEBUG, &naddr);
AdamGreen 0:3b00827bb0b7 1415 LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", sin.sin_port));
AdamGreen 0:3b00827bb0b7 1416
AdamGreen 0:3b00827bb0b7 1417 sin.sin_port = htons(sin.sin_port);
AdamGreen 0:3b00827bb0b7 1418 inet_addr_from_ipaddr(&sin.sin_addr, &naddr);
AdamGreen 0:3b00827bb0b7 1419
AdamGreen 0:3b00827bb0b7 1420 if (*namelen > sizeof(sin)) {
AdamGreen 0:3b00827bb0b7 1421 *namelen = sizeof(sin);
AdamGreen 0:3b00827bb0b7 1422 }
AdamGreen 0:3b00827bb0b7 1423
AdamGreen 0:3b00827bb0b7 1424 MEMCPY(name, &sin, *namelen);
AdamGreen 0:3b00827bb0b7 1425 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 1426 return 0;
AdamGreen 0:3b00827bb0b7 1427 }
AdamGreen 0:3b00827bb0b7 1428
AdamGreen 0:3b00827bb0b7 1429 int
AdamGreen 0:3b00827bb0b7 1430 lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen)
AdamGreen 0:3b00827bb0b7 1431 {
AdamGreen 0:3b00827bb0b7 1432 return lwip_getaddrname(s, name, namelen, 0);
AdamGreen 0:3b00827bb0b7 1433 }
AdamGreen 0:3b00827bb0b7 1434
AdamGreen 0:3b00827bb0b7 1435 int
AdamGreen 0:3b00827bb0b7 1436 lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen)
AdamGreen 0:3b00827bb0b7 1437 {
AdamGreen 0:3b00827bb0b7 1438 return lwip_getaddrname(s, name, namelen, 1);
AdamGreen 0:3b00827bb0b7 1439 }
AdamGreen 0:3b00827bb0b7 1440
AdamGreen 0:3b00827bb0b7 1441 int
AdamGreen 0:3b00827bb0b7 1442 lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen)
AdamGreen 0:3b00827bb0b7 1443 {
AdamGreen 0:3b00827bb0b7 1444 err_t err = ERR_OK;
AdamGreen 0:3b00827bb0b7 1445 struct lwip_sock *sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 1446 struct lwip_setgetsockopt_data data;
AdamGreen 0:3b00827bb0b7 1447
AdamGreen 0:3b00827bb0b7 1448 if (!sock) {
AdamGreen 0:3b00827bb0b7 1449 return -1;
AdamGreen 0:3b00827bb0b7 1450 }
AdamGreen 0:3b00827bb0b7 1451
AdamGreen 0:3b00827bb0b7 1452 if ((NULL == optval) || (NULL == optlen)) {
AdamGreen 0:3b00827bb0b7 1453 sock_set_errno(sock, EFAULT);
AdamGreen 0:3b00827bb0b7 1454 return -1;
AdamGreen 0:3b00827bb0b7 1455 }
AdamGreen 0:3b00827bb0b7 1456
AdamGreen 0:3b00827bb0b7 1457 /* Do length and type checks for the various options first, to keep it readable. */
AdamGreen 0:3b00827bb0b7 1458 switch (level) {
AdamGreen 0:3b00827bb0b7 1459
AdamGreen 0:3b00827bb0b7 1460 /* Level: SOL_SOCKET */
AdamGreen 0:3b00827bb0b7 1461 case SOL_SOCKET:
AdamGreen 0:3b00827bb0b7 1462 switch (optname) {
AdamGreen 0:3b00827bb0b7 1463
AdamGreen 0:3b00827bb0b7 1464 case SO_ACCEPTCONN:
AdamGreen 0:3b00827bb0b7 1465 case SO_BROADCAST:
AdamGreen 0:3b00827bb0b7 1466 /* UNIMPL case SO_DEBUG: */
AdamGreen 0:3b00827bb0b7 1467 /* UNIMPL case SO_DONTROUTE: */
AdamGreen 0:3b00827bb0b7 1468 case SO_ERROR:
AdamGreen 0:3b00827bb0b7 1469 case SO_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1470 /* UNIMPL case SO_CONTIMEO: */
AdamGreen 0:3b00827bb0b7 1471 /* UNIMPL case SO_SNDTIMEO: */
AdamGreen 0:3b00827bb0b7 1472 #if LWIP_SO_RCVTIMEO
AdamGreen 0:3b00827bb0b7 1473 case SO_RCVTIMEO:
AdamGreen 0:3b00827bb0b7 1474 #endif /* LWIP_SO_RCVTIMEO */
AdamGreen 0:3b00827bb0b7 1475 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 1476 case SO_RCVBUF:
AdamGreen 0:3b00827bb0b7 1477 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 1478 /* UNIMPL case SO_OOBINLINE: */
AdamGreen 0:3b00827bb0b7 1479 /* UNIMPL case SO_SNDBUF: */
AdamGreen 0:3b00827bb0b7 1480 /* UNIMPL case SO_RCVLOWAT: */
AdamGreen 0:3b00827bb0b7 1481 /* UNIMPL case SO_SNDLOWAT: */
AdamGreen 0:3b00827bb0b7 1482 #if SO_REUSE
AdamGreen 0:3b00827bb0b7 1483 case SO_REUSEADDR:
AdamGreen 0:3b00827bb0b7 1484 case SO_REUSEPORT:
AdamGreen 0:3b00827bb0b7 1485 #endif /* SO_REUSE */
AdamGreen 0:3b00827bb0b7 1486 case SO_TYPE:
AdamGreen 0:3b00827bb0b7 1487 /* UNIMPL case SO_USELOOPBACK: */
AdamGreen 0:3b00827bb0b7 1488 if (*optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1489 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1490 }
AdamGreen 0:3b00827bb0b7 1491 break;
AdamGreen 0:3b00827bb0b7 1492
AdamGreen 0:3b00827bb0b7 1493 case SO_NO_CHECK:
AdamGreen 0:3b00827bb0b7 1494 if (*optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1495 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1496 }
AdamGreen 0:3b00827bb0b7 1497 #if LWIP_UDP
AdamGreen 0:3b00827bb0b7 1498 if ((sock->conn->type != NETCONN_UDP) ||
AdamGreen 0:3b00827bb0b7 1499 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
AdamGreen 0:3b00827bb0b7 1500 /* this flag is only available for UDP, not for UDP lite */
AdamGreen 0:3b00827bb0b7 1501 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1502 }
AdamGreen 0:3b00827bb0b7 1503 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 1504 break;
AdamGreen 0:3b00827bb0b7 1505
AdamGreen 0:3b00827bb0b7 1506 default:
AdamGreen 0:3b00827bb0b7 1507 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1508 s, optname));
AdamGreen 0:3b00827bb0b7 1509 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1510 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1511 break;
AdamGreen 0:3b00827bb0b7 1512
AdamGreen 0:3b00827bb0b7 1513 /* Level: IPPROTO_IP */
AdamGreen 0:3b00827bb0b7 1514 case IPPROTO_IP:
AdamGreen 0:3b00827bb0b7 1515 switch (optname) {
AdamGreen 0:3b00827bb0b7 1516 /* UNIMPL case IP_HDRINCL: */
AdamGreen 0:3b00827bb0b7 1517 /* UNIMPL case IP_RCVDSTADDR: */
AdamGreen 0:3b00827bb0b7 1518 /* UNIMPL case IP_RCVIF: */
AdamGreen 0:3b00827bb0b7 1519 case IP_TTL:
AdamGreen 0:3b00827bb0b7 1520 case IP_TOS:
AdamGreen 0:3b00827bb0b7 1521 if (*optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1522 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1523 }
AdamGreen 0:3b00827bb0b7 1524 break;
AdamGreen 0:3b00827bb0b7 1525 #if LWIP_IGMP
AdamGreen 0:3b00827bb0b7 1526 case IP_MULTICAST_TTL:
AdamGreen 0:3b00827bb0b7 1527 if (*optlen < sizeof(u8_t)) {
AdamGreen 0:3b00827bb0b7 1528 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1529 }
AdamGreen 0:3b00827bb0b7 1530 break;
AdamGreen 0:3b00827bb0b7 1531 case IP_MULTICAST_IF:
AdamGreen 0:3b00827bb0b7 1532 if (*optlen < sizeof(struct in_addr)) {
AdamGreen 0:3b00827bb0b7 1533 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1534 }
AdamGreen 0:3b00827bb0b7 1535 break;
AdamGreen 0:3b00827bb0b7 1536 case IP_MULTICAST_LOOP:
AdamGreen 0:3b00827bb0b7 1537 if (*optlen < sizeof(u8_t)) {
AdamGreen 0:3b00827bb0b7 1538 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1539 }
AdamGreen 0:3b00827bb0b7 1540 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AdamGreen 0:3b00827bb0b7 1541 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1542 }
AdamGreen 0:3b00827bb0b7 1543 break;
AdamGreen 0:3b00827bb0b7 1544 #endif /* LWIP_IGMP */
AdamGreen 0:3b00827bb0b7 1545
AdamGreen 0:3b00827bb0b7 1546 default:
AdamGreen 0:3b00827bb0b7 1547 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1548 s, optname));
AdamGreen 0:3b00827bb0b7 1549 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1550 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1551 break;
AdamGreen 0:3b00827bb0b7 1552
AdamGreen 0:3b00827bb0b7 1553 #if LWIP_TCP
AdamGreen 0:3b00827bb0b7 1554 /* Level: IPPROTO_TCP */
AdamGreen 0:3b00827bb0b7 1555 case IPPROTO_TCP:
AdamGreen 0:3b00827bb0b7 1556 if (*optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1557 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1558 break;
AdamGreen 0:3b00827bb0b7 1559 }
AdamGreen 0:3b00827bb0b7 1560
AdamGreen 0:3b00827bb0b7 1561 /* If this is no TCP socket, ignore any options. */
AdamGreen 0:3b00827bb0b7 1562 if (sock->conn->type != NETCONN_TCP)
AdamGreen 0:3b00827bb0b7 1563 return 0;
AdamGreen 0:3b00827bb0b7 1564
AdamGreen 0:3b00827bb0b7 1565 switch (optname) {
AdamGreen 0:3b00827bb0b7 1566 case TCP_NODELAY:
AdamGreen 0:3b00827bb0b7 1567 case TCP_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1568 #if LWIP_TCP_KEEPALIVE
AdamGreen 0:3b00827bb0b7 1569 case TCP_KEEPIDLE:
AdamGreen 0:3b00827bb0b7 1570 case TCP_KEEPINTVL:
AdamGreen 0:3b00827bb0b7 1571 case TCP_KEEPCNT:
AdamGreen 0:3b00827bb0b7 1572 #endif /* LWIP_TCP_KEEPALIVE */
AdamGreen 0:3b00827bb0b7 1573 break;
AdamGreen 0:3b00827bb0b7 1574
AdamGreen 0:3b00827bb0b7 1575 default:
AdamGreen 0:3b00827bb0b7 1576 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1577 s, optname));
AdamGreen 0:3b00827bb0b7 1578 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1579 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1580 break;
AdamGreen 0:3b00827bb0b7 1581 #endif /* LWIP_TCP */
AdamGreen 0:3b00827bb0b7 1582 #if LWIP_UDP && LWIP_UDPLITE
AdamGreen 0:3b00827bb0b7 1583 /* Level: IPPROTO_UDPLITE */
AdamGreen 0:3b00827bb0b7 1584 case IPPROTO_UDPLITE:
AdamGreen 0:3b00827bb0b7 1585 if (*optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1586 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1587 break;
AdamGreen 0:3b00827bb0b7 1588 }
AdamGreen 0:3b00827bb0b7 1589
AdamGreen 0:3b00827bb0b7 1590 /* If this is no UDP lite socket, ignore any options. */
AdamGreen 0:3b00827bb0b7 1591 if (sock->conn->type != NETCONN_UDPLITE) {
AdamGreen 0:3b00827bb0b7 1592 return 0;
AdamGreen 0:3b00827bb0b7 1593 }
AdamGreen 0:3b00827bb0b7 1594
AdamGreen 0:3b00827bb0b7 1595 switch (optname) {
AdamGreen 0:3b00827bb0b7 1596 case UDPLITE_SEND_CSCOV:
AdamGreen 0:3b00827bb0b7 1597 case UDPLITE_RECV_CSCOV:
AdamGreen 0:3b00827bb0b7 1598 break;
AdamGreen 0:3b00827bb0b7 1599
AdamGreen 0:3b00827bb0b7 1600 default:
AdamGreen 0:3b00827bb0b7 1601 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1602 s, optname));
AdamGreen 0:3b00827bb0b7 1603 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1604 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1605 break;
AdamGreen 0:3b00827bb0b7 1606 #endif /* LWIP_UDP && LWIP_UDPLITE*/
AdamGreen 0:3b00827bb0b7 1607 /* UNDEFINED LEVEL */
AdamGreen 0:3b00827bb0b7 1608 default:
AdamGreen 0:3b00827bb0b7 1609 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1610 s, level, optname));
AdamGreen 0:3b00827bb0b7 1611 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1612 } /* switch */
AdamGreen 0:3b00827bb0b7 1613
AdamGreen 0:3b00827bb0b7 1614
AdamGreen 0:3b00827bb0b7 1615 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 1616 sock_set_errno(sock, err);
AdamGreen 0:3b00827bb0b7 1617 return -1;
AdamGreen 0:3b00827bb0b7 1618 }
AdamGreen 0:3b00827bb0b7 1619
AdamGreen 0:3b00827bb0b7 1620 /* Now do the actual option processing */
AdamGreen 0:3b00827bb0b7 1621 data.sock = sock;
AdamGreen 0:3b00827bb0b7 1622 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 1623 data.s = s;
AdamGreen 0:3b00827bb0b7 1624 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 1625 data.level = level;
AdamGreen 0:3b00827bb0b7 1626 data.optname = optname;
AdamGreen 0:3b00827bb0b7 1627 data.optval = optval;
AdamGreen 0:3b00827bb0b7 1628 data.optlen = optlen;
AdamGreen 0:3b00827bb0b7 1629 data.err = err;
AdamGreen 0:3b00827bb0b7 1630 tcpip_callback(lwip_getsockopt_internal, &data);
AdamGreen 0:3b00827bb0b7 1631 sys_arch_sem_wait(&sock->conn->op_completed, 0);
AdamGreen 0:3b00827bb0b7 1632 /* maybe lwip_getsockopt_internal has changed err */
AdamGreen 0:3b00827bb0b7 1633 err = data.err;
AdamGreen 0:3b00827bb0b7 1634
AdamGreen 0:3b00827bb0b7 1635 sock_set_errno(sock, err);
AdamGreen 0:3b00827bb0b7 1636 return err ? -1 : 0;
AdamGreen 0:3b00827bb0b7 1637 }
AdamGreen 0:3b00827bb0b7 1638
AdamGreen 0:3b00827bb0b7 1639 static void
AdamGreen 0:3b00827bb0b7 1640 lwip_getsockopt_internal(void *arg)
AdamGreen 0:3b00827bb0b7 1641 {
AdamGreen 0:3b00827bb0b7 1642 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 1643 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 1644 int s;
AdamGreen 0:3b00827bb0b7 1645 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 1646 int level, optname;
AdamGreen 0:3b00827bb0b7 1647 void *optval;
AdamGreen 0:3b00827bb0b7 1648 struct lwip_setgetsockopt_data *data;
AdamGreen 0:3b00827bb0b7 1649
AdamGreen 0:3b00827bb0b7 1650 LWIP_ASSERT("arg != NULL", arg != NULL);
AdamGreen 0:3b00827bb0b7 1651
AdamGreen 0:3b00827bb0b7 1652 data = (struct lwip_setgetsockopt_data*)arg;
AdamGreen 0:3b00827bb0b7 1653 sock = data->sock;
AdamGreen 0:3b00827bb0b7 1654 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 1655 s = data->s;
AdamGreen 0:3b00827bb0b7 1656 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 1657 level = data->level;
AdamGreen 0:3b00827bb0b7 1658 optname = data->optname;
AdamGreen 0:3b00827bb0b7 1659 optval = data->optval;
AdamGreen 0:3b00827bb0b7 1660
AdamGreen 0:3b00827bb0b7 1661 switch (level) {
AdamGreen 0:3b00827bb0b7 1662
AdamGreen 0:3b00827bb0b7 1663 /* Level: SOL_SOCKET */
AdamGreen 0:3b00827bb0b7 1664 case SOL_SOCKET:
AdamGreen 0:3b00827bb0b7 1665 switch (optname) {
AdamGreen 0:3b00827bb0b7 1666
AdamGreen 0:3b00827bb0b7 1667 /* The option flags */
AdamGreen 0:3b00827bb0b7 1668 case SO_ACCEPTCONN:
AdamGreen 0:3b00827bb0b7 1669 case SO_BROADCAST:
AdamGreen 0:3b00827bb0b7 1670 /* UNIMPL case SO_DEBUG: */
AdamGreen 0:3b00827bb0b7 1671 /* UNIMPL case SO_DONTROUTE: */
AdamGreen 0:3b00827bb0b7 1672 case SO_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1673 /* UNIMPL case SO_OOBINCLUDE: */
AdamGreen 0:3b00827bb0b7 1674 #if SO_REUSE
AdamGreen 0:3b00827bb0b7 1675 case SO_REUSEADDR:
AdamGreen 0:3b00827bb0b7 1676 case SO_REUSEPORT:
AdamGreen 0:3b00827bb0b7 1677 #endif /* SO_REUSE */
AdamGreen 0:3b00827bb0b7 1678 /*case SO_USELOOPBACK: UNIMPL */
AdamGreen 0:3b00827bb0b7 1679 *(int*)optval = sock->conn->pcb.ip->so_options & optname;
AdamGreen 0:3b00827bb0b7 1680 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n",
AdamGreen 0:3b00827bb0b7 1681 s, optname, (*(int*)optval?"on":"off")));
AdamGreen 0:3b00827bb0b7 1682 break;
AdamGreen 0:3b00827bb0b7 1683
AdamGreen 0:3b00827bb0b7 1684 case SO_TYPE:
AdamGreen 0:3b00827bb0b7 1685 switch (NETCONNTYPE_GROUP(sock->conn->type)) {
AdamGreen 0:3b00827bb0b7 1686 case NETCONN_RAW:
AdamGreen 0:3b00827bb0b7 1687 *(int*)optval = SOCK_RAW;
AdamGreen 0:3b00827bb0b7 1688 break;
AdamGreen 0:3b00827bb0b7 1689 case NETCONN_TCP:
AdamGreen 0:3b00827bb0b7 1690 *(int*)optval = SOCK_STREAM;
AdamGreen 0:3b00827bb0b7 1691 break;
AdamGreen 0:3b00827bb0b7 1692 case NETCONN_UDP:
AdamGreen 0:3b00827bb0b7 1693 *(int*)optval = SOCK_DGRAM;
AdamGreen 0:3b00827bb0b7 1694 break;
AdamGreen 0:3b00827bb0b7 1695 default: /* unrecognized socket type */
AdamGreen 0:3b00827bb0b7 1696 *(int*)optval = sock->conn->type;
AdamGreen 0:3b00827bb0b7 1697 LWIP_DEBUGF(SOCKETS_DEBUG,
AdamGreen 0:3b00827bb0b7 1698 ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n",
AdamGreen 0:3b00827bb0b7 1699 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1700 } /* switch (sock->conn->type) */
AdamGreen 0:3b00827bb0b7 1701 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n",
AdamGreen 0:3b00827bb0b7 1702 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1703 break;
AdamGreen 0:3b00827bb0b7 1704
AdamGreen 0:3b00827bb0b7 1705 case SO_ERROR:
AdamGreen 0:3b00827bb0b7 1706 /* only overwrite ERR_OK or tempoary errors */
AdamGreen 0:3b00827bb0b7 1707 if ((sock->err == 0) || (sock->err == EINPROGRESS)) {
AdamGreen 0:3b00827bb0b7 1708 sock_set_errno(sock, err_to_errno(sock->conn->last_err));
AdamGreen 0:3b00827bb0b7 1709 }
AdamGreen 0:3b00827bb0b7 1710 *(int *)optval = sock->err;
AdamGreen 0:3b00827bb0b7 1711 sock->err = 0;
AdamGreen 0:3b00827bb0b7 1712 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n",
AdamGreen 0:3b00827bb0b7 1713 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1714 break;
AdamGreen 0:3b00827bb0b7 1715
AdamGreen 0:3b00827bb0b7 1716 #if LWIP_SO_RCVTIMEO
AdamGreen 0:3b00827bb0b7 1717 case SO_RCVTIMEO:
AdamGreen 0:3b00827bb0b7 1718 *(int *)optval = netconn_get_recvtimeout(sock->conn);
AdamGreen 0:3b00827bb0b7 1719 break;
AdamGreen 0:3b00827bb0b7 1720 #endif /* LWIP_SO_RCVTIMEO */
AdamGreen 0:3b00827bb0b7 1721 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 1722 case SO_RCVBUF:
AdamGreen 0:3b00827bb0b7 1723 *(int *)optval = netconn_get_recvbufsize(sock->conn);
AdamGreen 0:3b00827bb0b7 1724 break;
AdamGreen 0:3b00827bb0b7 1725 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 1726 #if LWIP_UDP
AdamGreen 0:3b00827bb0b7 1727 case SO_NO_CHECK:
AdamGreen 0:3b00827bb0b7 1728 *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0;
AdamGreen 0:3b00827bb0b7 1729 break;
AdamGreen 0:3b00827bb0b7 1730 #endif /* LWIP_UDP*/
AdamGreen 0:3b00827bb0b7 1731 default:
AdamGreen 0:3b00827bb0b7 1732 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 1733 break;
AdamGreen 0:3b00827bb0b7 1734 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1735 break;
AdamGreen 0:3b00827bb0b7 1736
AdamGreen 0:3b00827bb0b7 1737 /* Level: IPPROTO_IP */
AdamGreen 0:3b00827bb0b7 1738 case IPPROTO_IP:
AdamGreen 0:3b00827bb0b7 1739 switch (optname) {
AdamGreen 0:3b00827bb0b7 1740 case IP_TTL:
AdamGreen 0:3b00827bb0b7 1741 *(int*)optval = sock->conn->pcb.ip->ttl;
AdamGreen 0:3b00827bb0b7 1742 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n",
AdamGreen 0:3b00827bb0b7 1743 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1744 break;
AdamGreen 0:3b00827bb0b7 1745 case IP_TOS:
AdamGreen 0:3b00827bb0b7 1746 *(int*)optval = sock->conn->pcb.ip->tos;
AdamGreen 0:3b00827bb0b7 1747 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n",
AdamGreen 0:3b00827bb0b7 1748 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1749 break;
AdamGreen 0:3b00827bb0b7 1750 #if LWIP_IGMP
AdamGreen 0:3b00827bb0b7 1751 case IP_MULTICAST_TTL:
AdamGreen 0:3b00827bb0b7 1752 *(u8_t*)optval = sock->conn->pcb.ip->ttl;
AdamGreen 0:3b00827bb0b7 1753 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n",
AdamGreen 0:3b00827bb0b7 1754 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1755 break;
AdamGreen 0:3b00827bb0b7 1756 case IP_MULTICAST_IF:
AdamGreen 0:3b00827bb0b7 1757 inet_addr_from_ipaddr((struct in_addr*)optval, &sock->conn->pcb.udp->multicast_ip);
AdamGreen 0:3b00827bb0b7 1758 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n",
AdamGreen 0:3b00827bb0b7 1759 s, *(u32_t *)optval));
AdamGreen 0:3b00827bb0b7 1760 break;
AdamGreen 0:3b00827bb0b7 1761 case IP_MULTICAST_LOOP:
AdamGreen 0:3b00827bb0b7 1762 if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
AdamGreen 0:3b00827bb0b7 1763 *(u8_t*)optval = 1;
AdamGreen 0:3b00827bb0b7 1764 } else {
AdamGreen 0:3b00827bb0b7 1765 *(u8_t*)optval = 0;
AdamGreen 0:3b00827bb0b7 1766 }
AdamGreen 0:3b00827bb0b7 1767 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
AdamGreen 0:3b00827bb0b7 1768 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1769 break;
AdamGreen 0:3b00827bb0b7 1770 #endif /* LWIP_IGMP */
AdamGreen 0:3b00827bb0b7 1771 default:
AdamGreen 0:3b00827bb0b7 1772 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 1773 break;
AdamGreen 0:3b00827bb0b7 1774 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1775 break;
AdamGreen 0:3b00827bb0b7 1776
AdamGreen 0:3b00827bb0b7 1777 #if LWIP_TCP
AdamGreen 0:3b00827bb0b7 1778 /* Level: IPPROTO_TCP */
AdamGreen 0:3b00827bb0b7 1779 case IPPROTO_TCP:
AdamGreen 0:3b00827bb0b7 1780 switch (optname) {
AdamGreen 0:3b00827bb0b7 1781 case TCP_NODELAY:
AdamGreen 0:3b00827bb0b7 1782 *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp);
AdamGreen 0:3b00827bb0b7 1783 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
AdamGreen 0:3b00827bb0b7 1784 s, (*(int*)optval)?"on":"off") );
AdamGreen 0:3b00827bb0b7 1785 break;
AdamGreen 0:3b00827bb0b7 1786 case TCP_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1787 *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle;
AdamGreen 0:3b00827bb0b7 1788 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPALIVE) = %d\n",
AdamGreen 0:3b00827bb0b7 1789 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1790 break;
AdamGreen 0:3b00827bb0b7 1791
AdamGreen 0:3b00827bb0b7 1792 #if LWIP_TCP_KEEPALIVE
AdamGreen 0:3b00827bb0b7 1793 case TCP_KEEPIDLE:
AdamGreen 0:3b00827bb0b7 1794 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000);
AdamGreen 0:3b00827bb0b7 1795 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPIDLE) = %d\n",
AdamGreen 0:3b00827bb0b7 1796 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1797 break;
AdamGreen 0:3b00827bb0b7 1798 case TCP_KEEPINTVL:
AdamGreen 0:3b00827bb0b7 1799 *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000);
AdamGreen 0:3b00827bb0b7 1800 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPINTVL) = %d\n",
AdamGreen 0:3b00827bb0b7 1801 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1802 break;
AdamGreen 0:3b00827bb0b7 1803 case TCP_KEEPCNT:
AdamGreen 0:3b00827bb0b7 1804 *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt;
AdamGreen 0:3b00827bb0b7 1805 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, TCP_KEEPCNT) = %d\n",
AdamGreen 0:3b00827bb0b7 1806 s, *(int *)optval));
AdamGreen 0:3b00827bb0b7 1807 break;
AdamGreen 0:3b00827bb0b7 1808 #endif /* LWIP_TCP_KEEPALIVE */
AdamGreen 0:3b00827bb0b7 1809 default:
AdamGreen 0:3b00827bb0b7 1810 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 1811 break;
AdamGreen 0:3b00827bb0b7 1812 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1813 break;
AdamGreen 0:3b00827bb0b7 1814 #endif /* LWIP_TCP */
AdamGreen 0:3b00827bb0b7 1815 #if LWIP_UDP && LWIP_UDPLITE
AdamGreen 0:3b00827bb0b7 1816 /* Level: IPPROTO_UDPLITE */
AdamGreen 0:3b00827bb0b7 1817 case IPPROTO_UDPLITE:
AdamGreen 0:3b00827bb0b7 1818 switch (optname) {
AdamGreen 0:3b00827bb0b7 1819 case UDPLITE_SEND_CSCOV:
AdamGreen 0:3b00827bb0b7 1820 *(int*)optval = sock->conn->pcb.udp->chksum_len_tx;
AdamGreen 0:3b00827bb0b7 1821 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n",
AdamGreen 0:3b00827bb0b7 1822 s, (*(int*)optval)) );
AdamGreen 0:3b00827bb0b7 1823 break;
AdamGreen 0:3b00827bb0b7 1824 case UDPLITE_RECV_CSCOV:
AdamGreen 0:3b00827bb0b7 1825 *(int*)optval = sock->conn->pcb.udp->chksum_len_rx;
AdamGreen 0:3b00827bb0b7 1826 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n",
AdamGreen 0:3b00827bb0b7 1827 s, (*(int*)optval)) );
AdamGreen 0:3b00827bb0b7 1828 break;
AdamGreen 0:3b00827bb0b7 1829 default:
AdamGreen 0:3b00827bb0b7 1830 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 1831 break;
AdamGreen 0:3b00827bb0b7 1832 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1833 break;
AdamGreen 0:3b00827bb0b7 1834 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 1835 default:
AdamGreen 0:3b00827bb0b7 1836 LWIP_ASSERT("unhandled level", 0);
AdamGreen 0:3b00827bb0b7 1837 break;
AdamGreen 0:3b00827bb0b7 1838 } /* switch (level) */
AdamGreen 0:3b00827bb0b7 1839 sys_sem_signal(&sock->conn->op_completed);
AdamGreen 0:3b00827bb0b7 1840 }
AdamGreen 0:3b00827bb0b7 1841
AdamGreen 0:3b00827bb0b7 1842 int
AdamGreen 0:3b00827bb0b7 1843 lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
AdamGreen 0:3b00827bb0b7 1844 {
AdamGreen 0:3b00827bb0b7 1845 struct lwip_sock *sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 1846 err_t err = ERR_OK;
AdamGreen 0:3b00827bb0b7 1847 struct lwip_setgetsockopt_data data;
AdamGreen 0:3b00827bb0b7 1848
AdamGreen 0:3b00827bb0b7 1849 if (!sock) {
AdamGreen 0:3b00827bb0b7 1850 return -1;
AdamGreen 0:3b00827bb0b7 1851 }
AdamGreen 0:3b00827bb0b7 1852
AdamGreen 0:3b00827bb0b7 1853 if (NULL == optval) {
AdamGreen 0:3b00827bb0b7 1854 sock_set_errno(sock, EFAULT);
AdamGreen 0:3b00827bb0b7 1855 return -1;
AdamGreen 0:3b00827bb0b7 1856 }
AdamGreen 0:3b00827bb0b7 1857
AdamGreen 0:3b00827bb0b7 1858 /* Do length and type checks for the various options first, to keep it readable. */
AdamGreen 0:3b00827bb0b7 1859 switch (level) {
AdamGreen 0:3b00827bb0b7 1860
AdamGreen 0:3b00827bb0b7 1861 /* Level: SOL_SOCKET */
AdamGreen 0:3b00827bb0b7 1862 case SOL_SOCKET:
AdamGreen 0:3b00827bb0b7 1863 switch (optname) {
AdamGreen 0:3b00827bb0b7 1864
AdamGreen 0:3b00827bb0b7 1865 case SO_BROADCAST:
AdamGreen 0:3b00827bb0b7 1866 /* UNIMPL case SO_DEBUG: */
AdamGreen 0:3b00827bb0b7 1867 /* UNIMPL case SO_DONTROUTE: */
AdamGreen 0:3b00827bb0b7 1868 case SO_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1869 /* UNIMPL case case SO_CONTIMEO: */
AdamGreen 0:3b00827bb0b7 1870 /* UNIMPL case case SO_SNDTIMEO: */
AdamGreen 0:3b00827bb0b7 1871 #if LWIP_SO_RCVTIMEO
AdamGreen 0:3b00827bb0b7 1872 case SO_RCVTIMEO:
AdamGreen 0:3b00827bb0b7 1873 #endif /* LWIP_SO_RCVTIMEO */
AdamGreen 0:3b00827bb0b7 1874 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 1875 case SO_RCVBUF:
AdamGreen 0:3b00827bb0b7 1876 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 1877 /* UNIMPL case SO_OOBINLINE: */
AdamGreen 0:3b00827bb0b7 1878 /* UNIMPL case SO_SNDBUF: */
AdamGreen 0:3b00827bb0b7 1879 /* UNIMPL case SO_RCVLOWAT: */
AdamGreen 0:3b00827bb0b7 1880 /* UNIMPL case SO_SNDLOWAT: */
AdamGreen 0:3b00827bb0b7 1881 #if SO_REUSE
AdamGreen 0:3b00827bb0b7 1882 case SO_REUSEADDR:
AdamGreen 0:3b00827bb0b7 1883 case SO_REUSEPORT:
AdamGreen 0:3b00827bb0b7 1884 #endif /* SO_REUSE */
AdamGreen 0:3b00827bb0b7 1885 /* UNIMPL case SO_USELOOPBACK: */
AdamGreen 0:3b00827bb0b7 1886 if (optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1887 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1888 }
AdamGreen 0:3b00827bb0b7 1889 break;
AdamGreen 0:3b00827bb0b7 1890 case SO_NO_CHECK:
AdamGreen 0:3b00827bb0b7 1891 if (optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1892 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1893 }
AdamGreen 0:3b00827bb0b7 1894 #if LWIP_UDP
AdamGreen 0:3b00827bb0b7 1895 if ((sock->conn->type != NETCONN_UDP) ||
AdamGreen 0:3b00827bb0b7 1896 ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) {
AdamGreen 0:3b00827bb0b7 1897 /* this flag is only available for UDP, not for UDP lite */
AdamGreen 0:3b00827bb0b7 1898 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1899 }
AdamGreen 0:3b00827bb0b7 1900 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 1901 break;
AdamGreen 0:3b00827bb0b7 1902 default:
AdamGreen 0:3b00827bb0b7 1903 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1904 s, optname));
AdamGreen 0:3b00827bb0b7 1905 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1906 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1907 break;
AdamGreen 0:3b00827bb0b7 1908
AdamGreen 0:3b00827bb0b7 1909 /* Level: IPPROTO_IP */
AdamGreen 0:3b00827bb0b7 1910 case IPPROTO_IP:
AdamGreen 0:3b00827bb0b7 1911 switch (optname) {
AdamGreen 0:3b00827bb0b7 1912 /* UNIMPL case IP_HDRINCL: */
AdamGreen 0:3b00827bb0b7 1913 /* UNIMPL case IP_RCVDSTADDR: */
AdamGreen 0:3b00827bb0b7 1914 /* UNIMPL case IP_RCVIF: */
AdamGreen 0:3b00827bb0b7 1915 case IP_TTL:
AdamGreen 0:3b00827bb0b7 1916 case IP_TOS:
AdamGreen 0:3b00827bb0b7 1917 if (optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1918 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1919 }
AdamGreen 0:3b00827bb0b7 1920 break;
AdamGreen 0:3b00827bb0b7 1921 #if LWIP_IGMP
AdamGreen 0:3b00827bb0b7 1922 case IP_MULTICAST_TTL:
AdamGreen 0:3b00827bb0b7 1923 if (optlen < sizeof(u8_t)) {
AdamGreen 0:3b00827bb0b7 1924 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1925 }
AdamGreen 0:3b00827bb0b7 1926 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AdamGreen 0:3b00827bb0b7 1927 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1928 }
AdamGreen 0:3b00827bb0b7 1929 break;
AdamGreen 0:3b00827bb0b7 1930 case IP_MULTICAST_IF:
AdamGreen 0:3b00827bb0b7 1931 if (optlen < sizeof(struct in_addr)) {
AdamGreen 0:3b00827bb0b7 1932 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1933 }
AdamGreen 0:3b00827bb0b7 1934 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AdamGreen 0:3b00827bb0b7 1935 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1936 }
AdamGreen 0:3b00827bb0b7 1937 break;
AdamGreen 0:3b00827bb0b7 1938 case IP_MULTICAST_LOOP:
AdamGreen 0:3b00827bb0b7 1939 if (optlen < sizeof(u8_t)) {
AdamGreen 0:3b00827bb0b7 1940 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1941 }
AdamGreen 0:3b00827bb0b7 1942 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AdamGreen 0:3b00827bb0b7 1943 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1944 }
AdamGreen 0:3b00827bb0b7 1945 break;
AdamGreen 0:3b00827bb0b7 1946 case IP_ADD_MEMBERSHIP:
AdamGreen 0:3b00827bb0b7 1947 case IP_DROP_MEMBERSHIP:
AdamGreen 0:3b00827bb0b7 1948 if (optlen < sizeof(struct ip_mreq)) {
AdamGreen 0:3b00827bb0b7 1949 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1950 }
AdamGreen 0:3b00827bb0b7 1951 if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) {
AdamGreen 0:3b00827bb0b7 1952 err = EAFNOSUPPORT;
AdamGreen 0:3b00827bb0b7 1953 }
AdamGreen 0:3b00827bb0b7 1954 break;
AdamGreen 0:3b00827bb0b7 1955 #endif /* LWIP_IGMP */
AdamGreen 0:3b00827bb0b7 1956 default:
AdamGreen 0:3b00827bb0b7 1957 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1958 s, optname));
AdamGreen 0:3b00827bb0b7 1959 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1960 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1961 break;
AdamGreen 0:3b00827bb0b7 1962
AdamGreen 0:3b00827bb0b7 1963 #if LWIP_TCP
AdamGreen 0:3b00827bb0b7 1964 /* Level: IPPROTO_TCP */
AdamGreen 0:3b00827bb0b7 1965 case IPPROTO_TCP:
AdamGreen 0:3b00827bb0b7 1966 if (optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1967 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1968 break;
AdamGreen 0:3b00827bb0b7 1969 }
AdamGreen 0:3b00827bb0b7 1970
AdamGreen 0:3b00827bb0b7 1971 /* If this is no TCP socket, ignore any options. */
AdamGreen 0:3b00827bb0b7 1972 if (sock->conn->type != NETCONN_TCP)
AdamGreen 0:3b00827bb0b7 1973 return 0;
AdamGreen 0:3b00827bb0b7 1974
AdamGreen 0:3b00827bb0b7 1975 switch (optname) {
AdamGreen 0:3b00827bb0b7 1976 case TCP_NODELAY:
AdamGreen 0:3b00827bb0b7 1977 case TCP_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 1978 #if LWIP_TCP_KEEPALIVE
AdamGreen 0:3b00827bb0b7 1979 case TCP_KEEPIDLE:
AdamGreen 0:3b00827bb0b7 1980 case TCP_KEEPINTVL:
AdamGreen 0:3b00827bb0b7 1981 case TCP_KEEPCNT:
AdamGreen 0:3b00827bb0b7 1982 #endif /* LWIP_TCP_KEEPALIVE */
AdamGreen 0:3b00827bb0b7 1983 break;
AdamGreen 0:3b00827bb0b7 1984
AdamGreen 0:3b00827bb0b7 1985 default:
AdamGreen 0:3b00827bb0b7 1986 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 1987 s, optname));
AdamGreen 0:3b00827bb0b7 1988 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 1989 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 1990 break;
AdamGreen 0:3b00827bb0b7 1991 #endif /* LWIP_TCP */
AdamGreen 0:3b00827bb0b7 1992 #if LWIP_UDP && LWIP_UDPLITE
AdamGreen 0:3b00827bb0b7 1993 /* Level: IPPROTO_UDPLITE */
AdamGreen 0:3b00827bb0b7 1994 case IPPROTO_UDPLITE:
AdamGreen 0:3b00827bb0b7 1995 if (optlen < sizeof(int)) {
AdamGreen 0:3b00827bb0b7 1996 err = EINVAL;
AdamGreen 0:3b00827bb0b7 1997 break;
AdamGreen 0:3b00827bb0b7 1998 }
AdamGreen 0:3b00827bb0b7 1999
AdamGreen 0:3b00827bb0b7 2000 /* If this is no UDP lite socket, ignore any options. */
AdamGreen 0:3b00827bb0b7 2001 if (sock->conn->type != NETCONN_UDPLITE)
AdamGreen 0:3b00827bb0b7 2002 return 0;
AdamGreen 0:3b00827bb0b7 2003
AdamGreen 0:3b00827bb0b7 2004 switch (optname) {
AdamGreen 0:3b00827bb0b7 2005 case UDPLITE_SEND_CSCOV:
AdamGreen 0:3b00827bb0b7 2006 case UDPLITE_RECV_CSCOV:
AdamGreen 0:3b00827bb0b7 2007 break;
AdamGreen 0:3b00827bb0b7 2008
AdamGreen 0:3b00827bb0b7 2009 default:
AdamGreen 0:3b00827bb0b7 2010 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 2011 s, optname));
AdamGreen 0:3b00827bb0b7 2012 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 2013 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 2014 break;
AdamGreen 0:3b00827bb0b7 2015 #endif /* LWIP_UDP && LWIP_UDPLITE */
AdamGreen 0:3b00827bb0b7 2016 /* UNDEFINED LEVEL */
AdamGreen 0:3b00827bb0b7 2017 default:
AdamGreen 0:3b00827bb0b7 2018 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n",
AdamGreen 0:3b00827bb0b7 2019 s, level, optname));
AdamGreen 0:3b00827bb0b7 2020 err = ENOPROTOOPT;
AdamGreen 0:3b00827bb0b7 2021 } /* switch (level) */
AdamGreen 0:3b00827bb0b7 2022
AdamGreen 0:3b00827bb0b7 2023
AdamGreen 0:3b00827bb0b7 2024 if (err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 2025 sock_set_errno(sock, err);
AdamGreen 0:3b00827bb0b7 2026 return -1;
AdamGreen 0:3b00827bb0b7 2027 }
AdamGreen 0:3b00827bb0b7 2028
AdamGreen 0:3b00827bb0b7 2029
AdamGreen 0:3b00827bb0b7 2030 /* Now do the actual option processing */
AdamGreen 0:3b00827bb0b7 2031 data.sock = sock;
AdamGreen 0:3b00827bb0b7 2032 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 2033 data.s = s;
AdamGreen 0:3b00827bb0b7 2034 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 2035 data.level = level;
AdamGreen 0:3b00827bb0b7 2036 data.optname = optname;
AdamGreen 0:3b00827bb0b7 2037 data.optval = (void*)optval;
AdamGreen 0:3b00827bb0b7 2038 data.optlen = &optlen;
AdamGreen 0:3b00827bb0b7 2039 data.err = err;
AdamGreen 0:3b00827bb0b7 2040 tcpip_callback(lwip_setsockopt_internal, &data);
AdamGreen 0:3b00827bb0b7 2041 sys_arch_sem_wait(&sock->conn->op_completed, 0);
AdamGreen 0:3b00827bb0b7 2042 /* maybe lwip_setsockopt_internal has changed err */
AdamGreen 0:3b00827bb0b7 2043 err = data.err;
AdamGreen 0:3b00827bb0b7 2044
AdamGreen 0:3b00827bb0b7 2045 sock_set_errno(sock, err);
AdamGreen 0:3b00827bb0b7 2046 return err ? -1 : 0;
AdamGreen 0:3b00827bb0b7 2047 }
AdamGreen 0:3b00827bb0b7 2048
AdamGreen 0:3b00827bb0b7 2049 static void
AdamGreen 0:3b00827bb0b7 2050 lwip_setsockopt_internal(void *arg)
AdamGreen 0:3b00827bb0b7 2051 {
AdamGreen 0:3b00827bb0b7 2052 struct lwip_sock *sock;
AdamGreen 0:3b00827bb0b7 2053 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 2054 int s;
AdamGreen 0:3b00827bb0b7 2055 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 2056 int level, optname;
AdamGreen 0:3b00827bb0b7 2057 const void *optval;
AdamGreen 0:3b00827bb0b7 2058 struct lwip_setgetsockopt_data *data;
AdamGreen 0:3b00827bb0b7 2059
AdamGreen 0:3b00827bb0b7 2060 LWIP_ASSERT("arg != NULL", arg != NULL);
AdamGreen 0:3b00827bb0b7 2061
AdamGreen 0:3b00827bb0b7 2062 data = (struct lwip_setgetsockopt_data*)arg;
AdamGreen 0:3b00827bb0b7 2063 sock = data->sock;
AdamGreen 0:3b00827bb0b7 2064 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 2065 s = data->s;
AdamGreen 0:3b00827bb0b7 2066 #endif /* LWIP_DEBUG */
AdamGreen 0:3b00827bb0b7 2067 level = data->level;
AdamGreen 0:3b00827bb0b7 2068 optname = data->optname;
AdamGreen 0:3b00827bb0b7 2069 optval = data->optval;
AdamGreen 0:3b00827bb0b7 2070
AdamGreen 0:3b00827bb0b7 2071 switch (level) {
AdamGreen 0:3b00827bb0b7 2072
AdamGreen 0:3b00827bb0b7 2073 /* Level: SOL_SOCKET */
AdamGreen 0:3b00827bb0b7 2074 case SOL_SOCKET:
AdamGreen 0:3b00827bb0b7 2075 switch (optname) {
AdamGreen 0:3b00827bb0b7 2076
AdamGreen 0:3b00827bb0b7 2077 /* The option flags */
AdamGreen 0:3b00827bb0b7 2078 case SO_BROADCAST:
AdamGreen 0:3b00827bb0b7 2079 /* UNIMPL case SO_DEBUG: */
AdamGreen 0:3b00827bb0b7 2080 /* UNIMPL case SO_DONTROUTE: */
AdamGreen 0:3b00827bb0b7 2081 case SO_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 2082 /* UNIMPL case SO_OOBINCLUDE: */
AdamGreen 0:3b00827bb0b7 2083 #if SO_REUSE
AdamGreen 0:3b00827bb0b7 2084 case SO_REUSEADDR:
AdamGreen 0:3b00827bb0b7 2085 case SO_REUSEPORT:
AdamGreen 0:3b00827bb0b7 2086 #endif /* SO_REUSE */
AdamGreen 0:3b00827bb0b7 2087 /* UNIMPL case SO_USELOOPBACK: */
AdamGreen 0:3b00827bb0b7 2088 if (*(int*)optval) {
AdamGreen 0:3b00827bb0b7 2089 sock->conn->pcb.ip->so_options |= optname;
AdamGreen 0:3b00827bb0b7 2090 } else {
AdamGreen 0:3b00827bb0b7 2091 sock->conn->pcb.ip->so_options &= ~optname;
AdamGreen 0:3b00827bb0b7 2092 }
AdamGreen 0:3b00827bb0b7 2093 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n",
AdamGreen 0:3b00827bb0b7 2094 s, optname, (*(int*)optval?"on":"off")));
AdamGreen 0:3b00827bb0b7 2095 break;
AdamGreen 0:3b00827bb0b7 2096 #if LWIP_SO_RCVTIMEO
AdamGreen 0:3b00827bb0b7 2097 case SO_RCVTIMEO:
AdamGreen 0:3b00827bb0b7 2098 netconn_set_recvtimeout(sock->conn, *(int*)optval);
AdamGreen 0:3b00827bb0b7 2099 break;
AdamGreen 0:3b00827bb0b7 2100 #endif /* LWIP_SO_RCVTIMEO */
AdamGreen 0:3b00827bb0b7 2101 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 2102 case SO_RCVBUF:
AdamGreen 0:3b00827bb0b7 2103 netconn_set_recvbufsize(sock->conn, *(int*)optval);
AdamGreen 0:3b00827bb0b7 2104 break;
AdamGreen 0:3b00827bb0b7 2105 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 2106 #if LWIP_UDP
AdamGreen 0:3b00827bb0b7 2107 case SO_NO_CHECK:
AdamGreen 0:3b00827bb0b7 2108 if (*(int*)optval) {
AdamGreen 0:3b00827bb0b7 2109 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM);
AdamGreen 0:3b00827bb0b7 2110 } else {
AdamGreen 0:3b00827bb0b7 2111 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM);
AdamGreen 0:3b00827bb0b7 2112 }
AdamGreen 0:3b00827bb0b7 2113 break;
AdamGreen 0:3b00827bb0b7 2114 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 2115 default:
AdamGreen 0:3b00827bb0b7 2116 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 2117 break;
AdamGreen 0:3b00827bb0b7 2118 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 2119 break;
AdamGreen 0:3b00827bb0b7 2120
AdamGreen 0:3b00827bb0b7 2121 /* Level: IPPROTO_IP */
AdamGreen 0:3b00827bb0b7 2122 case IPPROTO_IP:
AdamGreen 0:3b00827bb0b7 2123 switch (optname) {
AdamGreen 0:3b00827bb0b7 2124 case IP_TTL:
AdamGreen 0:3b00827bb0b7 2125 sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2126 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n",
AdamGreen 0:3b00827bb0b7 2127 s, sock->conn->pcb.ip->ttl));
AdamGreen 0:3b00827bb0b7 2128 break;
AdamGreen 0:3b00827bb0b7 2129 case IP_TOS:
AdamGreen 0:3b00827bb0b7 2130 sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2131 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n",
AdamGreen 0:3b00827bb0b7 2132 s, sock->conn->pcb.ip->tos));
AdamGreen 0:3b00827bb0b7 2133 break;
AdamGreen 0:3b00827bb0b7 2134 #if LWIP_IGMP
AdamGreen 0:3b00827bb0b7 2135 case IP_MULTICAST_TTL:
AdamGreen 0:3b00827bb0b7 2136 sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval);
AdamGreen 0:3b00827bb0b7 2137 break;
AdamGreen 0:3b00827bb0b7 2138 case IP_MULTICAST_IF:
AdamGreen 0:3b00827bb0b7 2139 inet_addr_to_ipaddr(&sock->conn->pcb.udp->multicast_ip, (struct in_addr*)optval);
AdamGreen 0:3b00827bb0b7 2140 break;
AdamGreen 0:3b00827bb0b7 2141 case IP_MULTICAST_LOOP:
AdamGreen 0:3b00827bb0b7 2142 if (*(u8_t*)optval) {
AdamGreen 0:3b00827bb0b7 2143 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP);
AdamGreen 0:3b00827bb0b7 2144 } else {
AdamGreen 0:3b00827bb0b7 2145 udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP);
AdamGreen 0:3b00827bb0b7 2146 }
AdamGreen 0:3b00827bb0b7 2147 break;
AdamGreen 0:3b00827bb0b7 2148 case IP_ADD_MEMBERSHIP:
AdamGreen 0:3b00827bb0b7 2149 case IP_DROP_MEMBERSHIP:
AdamGreen 0:3b00827bb0b7 2150 {
AdamGreen 0:3b00827bb0b7 2151 /* If this is a TCP or a RAW socket, ignore these options. */
AdamGreen 0:3b00827bb0b7 2152 struct ip_mreq *imr = (struct ip_mreq *)optval;
AdamGreen 0:3b00827bb0b7 2153 ip_addr_t if_addr;
AdamGreen 0:3b00827bb0b7 2154 ip_addr_t multi_addr;
AdamGreen 0:3b00827bb0b7 2155 inet_addr_to_ipaddr(&if_addr, &imr->imr_interface);
AdamGreen 0:3b00827bb0b7 2156 inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr);
AdamGreen 0:3b00827bb0b7 2157 if(optname == IP_ADD_MEMBERSHIP){
AdamGreen 0:3b00827bb0b7 2158 data->err = igmp_joingroup(&if_addr, &multi_addr);
AdamGreen 0:3b00827bb0b7 2159 } else {
AdamGreen 0:3b00827bb0b7 2160 data->err = igmp_leavegroup(&if_addr, &multi_addr);
AdamGreen 0:3b00827bb0b7 2161 }
AdamGreen 0:3b00827bb0b7 2162 if(data->err != ERR_OK) {
AdamGreen 0:3b00827bb0b7 2163 data->err = EADDRNOTAVAIL;
AdamGreen 0:3b00827bb0b7 2164 }
AdamGreen 0:3b00827bb0b7 2165 }
AdamGreen 0:3b00827bb0b7 2166 break;
AdamGreen 0:3b00827bb0b7 2167 #endif /* LWIP_IGMP */
AdamGreen 0:3b00827bb0b7 2168 default:
AdamGreen 0:3b00827bb0b7 2169 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 2170 break;
AdamGreen 0:3b00827bb0b7 2171 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 2172 break;
AdamGreen 0:3b00827bb0b7 2173
AdamGreen 0:3b00827bb0b7 2174 #if LWIP_TCP
AdamGreen 0:3b00827bb0b7 2175 /* Level: IPPROTO_TCP */
AdamGreen 0:3b00827bb0b7 2176 case IPPROTO_TCP:
AdamGreen 0:3b00827bb0b7 2177 switch (optname) {
AdamGreen 0:3b00827bb0b7 2178 case TCP_NODELAY:
AdamGreen 0:3b00827bb0b7 2179 if (*(int*)optval) {
AdamGreen 0:3b00827bb0b7 2180 tcp_nagle_disable(sock->conn->pcb.tcp);
AdamGreen 0:3b00827bb0b7 2181 } else {
AdamGreen 0:3b00827bb0b7 2182 tcp_nagle_enable(sock->conn->pcb.tcp);
AdamGreen 0:3b00827bb0b7 2183 }
AdamGreen 0:3b00827bb0b7 2184 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
AdamGreen 0:3b00827bb0b7 2185 s, (*(int *)optval)?"on":"off") );
AdamGreen 0:3b00827bb0b7 2186 break;
AdamGreen 0:3b00827bb0b7 2187 case TCP_KEEPALIVE:
AdamGreen 0:3b00827bb0b7 2188 sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2189 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n",
AdamGreen 0:3b00827bb0b7 2190 s, sock->conn->pcb.tcp->keep_idle));
AdamGreen 0:3b00827bb0b7 2191 break;
AdamGreen 0:3b00827bb0b7 2192
AdamGreen 0:3b00827bb0b7 2193 #if LWIP_TCP_KEEPALIVE
AdamGreen 0:3b00827bb0b7 2194 case TCP_KEEPIDLE:
AdamGreen 0:3b00827bb0b7 2195 sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2196 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n",
AdamGreen 0:3b00827bb0b7 2197 s, sock->conn->pcb.tcp->keep_idle));
AdamGreen 0:3b00827bb0b7 2198 break;
AdamGreen 0:3b00827bb0b7 2199 case TCP_KEEPINTVL:
AdamGreen 0:3b00827bb0b7 2200 sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2201 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n",
AdamGreen 0:3b00827bb0b7 2202 s, sock->conn->pcb.tcp->keep_intvl));
AdamGreen 0:3b00827bb0b7 2203 break;
AdamGreen 0:3b00827bb0b7 2204 case TCP_KEEPCNT:
AdamGreen 0:3b00827bb0b7 2205 sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval);
AdamGreen 0:3b00827bb0b7 2206 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n",
AdamGreen 0:3b00827bb0b7 2207 s, sock->conn->pcb.tcp->keep_cnt));
AdamGreen 0:3b00827bb0b7 2208 break;
AdamGreen 0:3b00827bb0b7 2209 #endif /* LWIP_TCP_KEEPALIVE */
AdamGreen 0:3b00827bb0b7 2210 default:
AdamGreen 0:3b00827bb0b7 2211 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 2212 break;
AdamGreen 0:3b00827bb0b7 2213 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 2214 break;
AdamGreen 0:3b00827bb0b7 2215 #endif /* LWIP_TCP*/
AdamGreen 0:3b00827bb0b7 2216 #if LWIP_UDP && LWIP_UDPLITE
AdamGreen 0:3b00827bb0b7 2217 /* Level: IPPROTO_UDPLITE */
AdamGreen 0:3b00827bb0b7 2218 case IPPROTO_UDPLITE:
AdamGreen 0:3b00827bb0b7 2219 switch (optname) {
AdamGreen 0:3b00827bb0b7 2220 case UDPLITE_SEND_CSCOV:
AdamGreen 0:3b00827bb0b7 2221 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
AdamGreen 0:3b00827bb0b7 2222 /* don't allow illegal values! */
AdamGreen 0:3b00827bb0b7 2223 sock->conn->pcb.udp->chksum_len_tx = 8;
AdamGreen 0:3b00827bb0b7 2224 } else {
AdamGreen 0:3b00827bb0b7 2225 sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(int*)optval;
AdamGreen 0:3b00827bb0b7 2226 }
AdamGreen 0:3b00827bb0b7 2227 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n",
AdamGreen 0:3b00827bb0b7 2228 s, (*(int*)optval)) );
AdamGreen 0:3b00827bb0b7 2229 break;
AdamGreen 0:3b00827bb0b7 2230 case UDPLITE_RECV_CSCOV:
AdamGreen 0:3b00827bb0b7 2231 if ((*(int*)optval != 0) && ((*(int*)optval < 8)) || (*(int*)optval > 0xffff)) {
AdamGreen 0:3b00827bb0b7 2232 /* don't allow illegal values! */
AdamGreen 0:3b00827bb0b7 2233 sock->conn->pcb.udp->chksum_len_rx = 8;
AdamGreen 0:3b00827bb0b7 2234 } else {
AdamGreen 0:3b00827bb0b7 2235 sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(int*)optval;
AdamGreen 0:3b00827bb0b7 2236 }
AdamGreen 0:3b00827bb0b7 2237 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n",
AdamGreen 0:3b00827bb0b7 2238 s, (*(int*)optval)) );
AdamGreen 0:3b00827bb0b7 2239 break;
AdamGreen 0:3b00827bb0b7 2240 default:
AdamGreen 0:3b00827bb0b7 2241 LWIP_ASSERT("unhandled optname", 0);
AdamGreen 0:3b00827bb0b7 2242 break;
AdamGreen 0:3b00827bb0b7 2243 } /* switch (optname) */
AdamGreen 0:3b00827bb0b7 2244 break;
AdamGreen 0:3b00827bb0b7 2245 #endif /* LWIP_UDP */
AdamGreen 0:3b00827bb0b7 2246 default:
AdamGreen 0:3b00827bb0b7 2247 LWIP_ASSERT("unhandled level", 0);
AdamGreen 0:3b00827bb0b7 2248 break;
AdamGreen 0:3b00827bb0b7 2249 } /* switch (level) */
AdamGreen 0:3b00827bb0b7 2250 sys_sem_signal(&sock->conn->op_completed);
AdamGreen 0:3b00827bb0b7 2251 }
AdamGreen 0:3b00827bb0b7 2252
AdamGreen 0:3b00827bb0b7 2253 int
AdamGreen 0:3b00827bb0b7 2254 lwip_ioctl(int s, long cmd, void *argp)
AdamGreen 0:3b00827bb0b7 2255 {
AdamGreen 0:3b00827bb0b7 2256 struct lwip_sock *sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 2257 u8_t val;
AdamGreen 0:3b00827bb0b7 2258 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 2259 u16_t buflen = 0;
AdamGreen 0:3b00827bb0b7 2260 s16_t recv_avail;
AdamGreen 0:3b00827bb0b7 2261 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 2262
AdamGreen 0:3b00827bb0b7 2263 if (!sock) {
AdamGreen 0:3b00827bb0b7 2264 return -1;
AdamGreen 0:3b00827bb0b7 2265 }
AdamGreen 0:3b00827bb0b7 2266
AdamGreen 0:3b00827bb0b7 2267 switch (cmd) {
AdamGreen 0:3b00827bb0b7 2268 #if LWIP_SO_RCVBUF
AdamGreen 0:3b00827bb0b7 2269 case FIONREAD:
AdamGreen 0:3b00827bb0b7 2270 if (!argp) {
AdamGreen 0:3b00827bb0b7 2271 sock_set_errno(sock, EINVAL);
AdamGreen 0:3b00827bb0b7 2272 return -1;
AdamGreen 0:3b00827bb0b7 2273 }
AdamGreen 0:3b00827bb0b7 2274
AdamGreen 0:3b00827bb0b7 2275 SYS_ARCH_GET(sock->conn->recv_avail, recv_avail);
AdamGreen 0:3b00827bb0b7 2276 if (recv_avail < 0) {
AdamGreen 0:3b00827bb0b7 2277 recv_avail = 0;
AdamGreen 0:3b00827bb0b7 2278 }
AdamGreen 0:3b00827bb0b7 2279 *((u16_t*)argp) = (u16_t)recv_avail;
AdamGreen 0:3b00827bb0b7 2280
AdamGreen 0:3b00827bb0b7 2281 /* Check if there is data left from the last recv operation. /maq 041215 */
AdamGreen 0:3b00827bb0b7 2282 if (sock->lastdata) {
AdamGreen 0:3b00827bb0b7 2283 struct pbuf *p = (struct pbuf *)sock->lastdata;
AdamGreen 0:3b00827bb0b7 2284 if (netconn_type(sock->conn) != NETCONN_TCP) {
AdamGreen 0:3b00827bb0b7 2285 p = ((struct netbuf *)p)->p;
AdamGreen 0:3b00827bb0b7 2286 }
AdamGreen 0:3b00827bb0b7 2287 buflen = p->tot_len;
AdamGreen 0:3b00827bb0b7 2288 buflen -= sock->lastoffset;
AdamGreen 0:3b00827bb0b7 2289
AdamGreen 0:3b00827bb0b7 2290 *((u16_t*)argp) += buflen;
AdamGreen 0:3b00827bb0b7 2291 }
AdamGreen 0:3b00827bb0b7 2292
AdamGreen 0:3b00827bb0b7 2293 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp)));
AdamGreen 0:3b00827bb0b7 2294 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 2295 return 0;
AdamGreen 0:3b00827bb0b7 2296 #endif /* LWIP_SO_RCVBUF */
AdamGreen 0:3b00827bb0b7 2297
AdamGreen 0:3b00827bb0b7 2298 case FIONBIO:
AdamGreen 0:3b00827bb0b7 2299 val = 0;
AdamGreen 0:3b00827bb0b7 2300 if (argp && *(u32_t*)argp) {
AdamGreen 0:3b00827bb0b7 2301 val = 1;
AdamGreen 0:3b00827bb0b7 2302 }
AdamGreen 0:3b00827bb0b7 2303 netconn_set_nonblocking(sock->conn, val);
AdamGreen 0:3b00827bb0b7 2304 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val));
AdamGreen 0:3b00827bb0b7 2305 sock_set_errno(sock, 0);
AdamGreen 0:3b00827bb0b7 2306 return 0;
AdamGreen 0:3b00827bb0b7 2307
AdamGreen 0:3b00827bb0b7 2308 default:
AdamGreen 0:3b00827bb0b7 2309 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp));
AdamGreen 0:3b00827bb0b7 2310 sock_set_errno(sock, ENOSYS); /* not yet implemented */
AdamGreen 0:3b00827bb0b7 2311 return -1;
AdamGreen 0:3b00827bb0b7 2312 } /* switch (cmd) */
AdamGreen 0:3b00827bb0b7 2313 }
AdamGreen 0:3b00827bb0b7 2314
AdamGreen 0:3b00827bb0b7 2315 /** A minimal implementation of fcntl.
AdamGreen 0:3b00827bb0b7 2316 * Currently only the commands F_GETFL and F_SETFL are implemented.
AdamGreen 0:3b00827bb0b7 2317 * Only the flag O_NONBLOCK is implemented.
AdamGreen 0:3b00827bb0b7 2318 */
AdamGreen 0:3b00827bb0b7 2319 int
AdamGreen 0:3b00827bb0b7 2320 lwip_fcntl(int s, int cmd, int val)
AdamGreen 0:3b00827bb0b7 2321 {
AdamGreen 0:3b00827bb0b7 2322 struct lwip_sock *sock = get_socket(s);
AdamGreen 0:3b00827bb0b7 2323 int ret = -1;
AdamGreen 0:3b00827bb0b7 2324
AdamGreen 0:3b00827bb0b7 2325 if (!sock || !sock->conn) {
AdamGreen 0:3b00827bb0b7 2326 return -1;
AdamGreen 0:3b00827bb0b7 2327 }
AdamGreen 0:3b00827bb0b7 2328
AdamGreen 0:3b00827bb0b7 2329 switch (cmd) {
AdamGreen 0:3b00827bb0b7 2330 case F_GETFL:
AdamGreen 0:3b00827bb0b7 2331 ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0;
AdamGreen 0:3b00827bb0b7 2332 break;
AdamGreen 0:3b00827bb0b7 2333 case F_SETFL:
AdamGreen 0:3b00827bb0b7 2334 if ((val & ~O_NONBLOCK) == 0) {
AdamGreen 0:3b00827bb0b7 2335 /* only O_NONBLOCK, all other bits are zero */
AdamGreen 0:3b00827bb0b7 2336 netconn_set_nonblocking(sock->conn, val & O_NONBLOCK);
AdamGreen 0:3b00827bb0b7 2337 ret = 0;
AdamGreen 0:3b00827bb0b7 2338 }
AdamGreen 0:3b00827bb0b7 2339 break;
AdamGreen 0:3b00827bb0b7 2340 default:
AdamGreen 0:3b00827bb0b7 2341 LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val));
AdamGreen 0:3b00827bb0b7 2342 break;
AdamGreen 0:3b00827bb0b7 2343 }
AdamGreen 0:3b00827bb0b7 2344 return ret;
AdamGreen 0:3b00827bb0b7 2345 }
AdamGreen 0:3b00827bb0b7 2346
AdamGreen 0:3b00827bb0b7 2347 #endif /* LWIP_SOCKET */