Pehr Hovey
Some quick code to use UDP-only (no TCP) with mBed. Echos received packets and sends packets when a button is pressed
Core/lwIP/netif/loopif.c@0:a548a085de55, 2010-03-14 (annotated)
- Committer:
- pehrhovey
- Date:
- Sun Mar 14 00:54:12 2010 +0000
- Revision:
- 0:a548a085de55
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| pehrhovey | 0:a548a085de55 | 1 | /** |
| pehrhovey | 0:a548a085de55 | 2 | * @file |
| pehrhovey | 0:a548a085de55 | 3 | * Loop Interface |
| pehrhovey | 0:a548a085de55 | 4 | * |
| pehrhovey | 0:a548a085de55 | 5 | */ |
| pehrhovey | 0:a548a085de55 | 6 | |
| pehrhovey | 0:a548a085de55 | 7 | /* |
| pehrhovey | 0:a548a085de55 | 8 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| pehrhovey | 0:a548a085de55 | 9 | * All rights reserved. |
| pehrhovey | 0:a548a085de55 | 10 | * |
| pehrhovey | 0:a548a085de55 | 11 | * Redistribution and use in source and binary forms, with or without modification, |
| pehrhovey | 0:a548a085de55 | 12 | * are permitted provided that the following conditions are met: |
| pehrhovey | 0:a548a085de55 | 13 | * |
| pehrhovey | 0:a548a085de55 | 14 | * 1. Redistributions of source code must retain the above copyright notice, |
| pehrhovey | 0:a548a085de55 | 15 | * this list of conditions and the following disclaimer. |
| pehrhovey | 0:a548a085de55 | 16 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| pehrhovey | 0:a548a085de55 | 17 | * this list of conditions and the following disclaimer in the documentation |
| pehrhovey | 0:a548a085de55 | 18 | * and/or other materials provided with the distribution. |
| pehrhovey | 0:a548a085de55 | 19 | * 3. The name of the author may not be used to endorse or promote products |
| pehrhovey | 0:a548a085de55 | 20 | * derived from this software without specific prior written permission. |
| pehrhovey | 0:a548a085de55 | 21 | * |
| pehrhovey | 0:a548a085de55 | 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| pehrhovey | 0:a548a085de55 | 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| pehrhovey | 0:a548a085de55 | 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| pehrhovey | 0:a548a085de55 | 25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| pehrhovey | 0:a548a085de55 | 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| pehrhovey | 0:a548a085de55 | 27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| pehrhovey | 0:a548a085de55 | 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| pehrhovey | 0:a548a085de55 | 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| pehrhovey | 0:a548a085de55 | 30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| pehrhovey | 0:a548a085de55 | 31 | * OF SUCH DAMAGE. |
| pehrhovey | 0:a548a085de55 | 32 | * |
| pehrhovey | 0:a548a085de55 | 33 | * This file is part of the lwIP TCP/IP stack. |
| pehrhovey | 0:a548a085de55 | 34 | * |
| pehrhovey | 0:a548a085de55 | 35 | * Author: Adam Dunkels <adam@sics.se> |
| pehrhovey | 0:a548a085de55 | 36 | * |
| pehrhovey | 0:a548a085de55 | 37 | */ |
| pehrhovey | 0:a548a085de55 | 38 | #include "lwip/opt.h" |
| pehrhovey | 0:a548a085de55 | 39 | |
| pehrhovey | 0:a548a085de55 | 40 | #if LWIP_HAVE_LOOPIF |
| pehrhovey | 0:a548a085de55 | 41 | |
| pehrhovey | 0:a548a085de55 | 42 | #include "netif/loopif.h" |
| pehrhovey | 0:a548a085de55 | 43 | #include "lwip/snmp.h" |
| pehrhovey | 0:a548a085de55 | 44 | |
| pehrhovey | 0:a548a085de55 | 45 | /** |
| pehrhovey | 0:a548a085de55 | 46 | * Initialize a lwip network interface structure for a loopback interface |
| pehrhovey | 0:a548a085de55 | 47 | * |
| pehrhovey | 0:a548a085de55 | 48 | * @param netif the lwip network interface structure for this loopif |
| pehrhovey | 0:a548a085de55 | 49 | * @return ERR_OK if the loopif is initialized |
| pehrhovey | 0:a548a085de55 | 50 | * ERR_MEM if private data couldn't be allocated |
| pehrhovey | 0:a548a085de55 | 51 | */ |
| pehrhovey | 0:a548a085de55 | 52 | err_t |
| pehrhovey | 0:a548a085de55 | 53 | loopif_init(struct netif *netif) |
| pehrhovey | 0:a548a085de55 | 54 | { |
| pehrhovey | 0:a548a085de55 | 55 | /* initialize the snmp variables and counters inside the struct netif |
| pehrhovey | 0:a548a085de55 | 56 | * ifSpeed: no assumption can be made! |
| pehrhovey | 0:a548a085de55 | 57 | */ |
| pehrhovey | 0:a548a085de55 | 58 | NETIF_INIT_SNMP(netif, snmp_ifType_softwareLoopback, 0); |
| pehrhovey | 0:a548a085de55 | 59 | |
| pehrhovey | 0:a548a085de55 | 60 | netif->name[0] = 'l'; |
| pehrhovey | 0:a548a085de55 | 61 | netif->name[1] = 'o'; |
| pehrhovey | 0:a548a085de55 | 62 | netif->output = netif_loop_output; |
| pehrhovey | 0:a548a085de55 | 63 | return ERR_OK; |
| pehrhovey | 0:a548a085de55 | 64 | } |
| pehrhovey | 0:a548a085de55 | 65 | |
| pehrhovey | 0:a548a085de55 | 66 | #endif /* LWIP_HAVE_LOOPIF */ |