| /* |
| * Copyright (c) 2007, Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * 3. Neither the name of the Institute nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * This file is part of the uIP TCP/IP stack. |
| * |
| * Author: Oliver Schmidt <ol.sc@web.de> |
| * |
| * $Id: wpcap-service.c,v 1.1 2007/09/05 16:11:08 oliverschmidt Exp $ |
| */ |
| |
| #include <memory.h> |
| |
| #include "packet-service.h" |
| #include "uip_arp.h" |
| #include "wpcap.h" |
| |
| static void output(u8_t *hdr, u16_t hdrlen, u8_t *data, u16_t datalen); |
| |
| static struct packet_service_state |
| state = {PACKET_SERVICE_VERSION, output}; |
| |
| EK_EVENTHANDLER(eventhandler, ev, data); |
| EK_POLLHANDLER(pollhandler); |
| EK_PROCESS(proc, PACKET_SERVICE_NAME, EK_PRIO_NORMAL, |
| eventhandler, pollhandler, &state); |
| |
| /*---------------------------------------------------------------------------*/ |
| static void |
| output(u8_t *hdr, u16_t hdrlen, u8_t *data, u16_t datalen) |
| { |
| /* Just copy all data into uip_buf. */ |
| memcpy(hdr + hdrlen, data, datalen); |
| uip_arp_out(); |
| wpcap_send(); |
| } |
| /*---------------------------------------------------------------------------*/ |
| EK_PROCESS_INIT(packet_service_init, arg) |
| { |
| ek_service_start(PACKET_SERVICE_NAME, &proc); |
| } |
| /*---------------------------------------------------------------------------*/ |
| EK_EVENTHANDLER(eventhandler, ev, data) |
| { |
| switch(ev) { |
| case EK_EVENT_INIT: |
| case EK_EVENT_REPLACE: |
| wpcap_init(); |
| break; |
| case EK_EVENT_REQUEST_REPLACE: |
| ek_replace(data, NULL); |
| LOADER_UNLOAD(); |
| break; |
| case EK_EVENT_REQUEST_EXIT: |
| wpcap_exit(); |
| ek_exit(); |
| LOADER_UNLOAD(); |
| break; |
| default: |
| break; |
| } |
| } |
| /*---------------------------------------------------------------------------*/ |
| EK_POLLHANDLER(pollhandler) |
| { |
| #define BUF ((struct uip_eth_hdr *)&uip_buf[0]) |
| |
| /* Poll Ethernet device to see if there is a frame avaliable. */ |
| uip_len = wpcap_poll(); |
| if(uip_len > 0) { |
| /* A frame was avaliable (and is now read into the uip_buf), so |
| we process it. */ |
| if(BUF->type == HTONS(UIP_ETHTYPE_IP)) { |
| uip_arp_ipin(); |
| uip_len -= sizeof(struct uip_eth_hdr); |
| tcpip_input(); |
| } else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) { |
| uip_arp_arpin(); |
| /* If the above function invocation resulted in data that |
| should be sent out on the network, the global variable |
| uip_len is set to a value > 0. */ |
| if(uip_len > 0) { |
| wpcap_send(); |
| } |
| } |
| } |
| } |
| /*---------------------------------------------------------------------------*/ |