/*									tab:4 * * * "Copyright (c) 2000-2002 The Regents of the University  of California.   * All rights reserved. * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose, without fee, and without written * agreement is hereby granted, provided that the above copyright * notice, the following two paragraphs and the author appear in all * copies of this software. *  * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL * DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *  * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, * UPDATES, ENHANCEMENTS, OR MODIFICATIONS." * *//*									tab:4 *									 *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. *  By downloading, copying, installing or using the software you *  agree to this license.  If you do not agree to this license, do *  not download, install, copy or use the software. * *  Intel Open Source License  * *  Copyright (c) 2002 Intel Corporation  *  All rights reserved.  *  Redistribution and use in source and binary forms, with or without *  modification, are permitted provided that the following conditions are *  met: *  *	Redistributions of source code must retain the above copyright *  notice, this list of conditions and the following disclaimer. *	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. *      Neither the name of the Intel Corporation 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 COPYRIGHT HOLDERS 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 INTEL OR ITS *  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. *  *  *//* * Authors:   Neil Patel * History:   Apr 11, 2003         Inception. * *//** * @author Neil Patel */includes AM;includes Bombilla;module RecvContextM {  provides interface StdControl;  uses {    interface ReceiveMsg as ReceivePacket;    interface Receive as ReceiveAdHoc;    interface BombillaStacks as Stacks;    interface BombillaContextSynch as Synch;    interface BombillaContextComm as Comm;    interface BombillaVirus as Virus;    interface BombillaAnalysis as Analysis;  }}implementation {  BombillaContext recvContext;  BombillaDataBuffer recvBuffer;  command result_t StdControl.init() {    int pc = 0;        recvContext.which = BOMB_CAPSULE_RECV;    recvContext.state = BOMB_STATE_HALT;    recvContext.rootCapsule.capsule.type = recvContext.which;    recvContext.rootCapsule.capsule.type |= BOMB_OPTION_FORWARD;          call Virus.registerCapsule(recvContext.rootCapsule.capsule.type,                                &recvContext.rootCapsule.capsule);        recvContext.rootCapsule.capsule.code[pc++] = OPbhead;    recvContext.rootCapsule.capsule.code[pc++] = OPpushc | 7;    recvContext.rootCapsule.capsule.code[pc++] = OPland;    recvContext.rootCapsule.capsule.code[pc++] = OPputled;    recvContext.rootCapsule.capsule.code[pc++] = OPhalt;    recvContext.rootCapsule.capsule.options = 0;    recvContext.rootCapsule.capsule.version = 0;    call Analysis.analyzeCapsuleVars(&recvContext.rootCapsule);    call Comm.registerCapsule(&recvContext.rootCapsule);        return SUCCESS;  }  command result_t StdControl.start() {    return SUCCESS;  }  command result_t StdControl.stop() {    return SUCCESS;  }  event result_t Comm.analyzeLockSets(BombillaCapsuleBuffer* capsules[]) {    return SUCCESS;  }    void alertReceiveContext(TOS_MsgPtr msg) {    if (!msg->crc) {return;}    if (recvContext.state != BOMB_STATE_HALT) {      dbg(DBG_USR1, "VM (%i): Received packet, receive context busy, drop.\n", recvContext.which);    }    else {      int i;      BombillaPacket* packet = (BombillaPacket*)(msg->data);      BombillaDataBuffer* buffer = (BombillaDataBuffer*)&(packet->payload);      dbg(DBG_USR1, "VM (%i): Received packet, enqueuing receive context to run.\n", recvContext.which);      dbg(DBG_USR1, "VM (%i): Copying %i bytes of header over:\n  ", recvContext.which, sizeof(recvContext.header));      for (i = 0; i < sizeof(recvContext.header); i++) {        dbg_clear(DBG_USR1, "%02hhx", packet->header[i]);      }      dbg_clear(DBG_USR1, "\n->");      nmemcpy(&(recvContext.header), packet->header, sizeof(recvContext.header));      for (i = 0; i < sizeof(recvContext.header); i++) {        dbg_clear(DBG_USR1, "%02hhx", ((uint8_t*)recvContext.header)[i]);      }      dbg_clear(DBG_USR1, "\n");      nmemcpy(&recvBuffer, buffer, sizeof(BombillaDataBuffer));      call Synch.initializeContext(&recvContext);      call Stacks.pushBuffer(&recvContext, &recvBuffer);      call Synch.resumeContext(&recvContext, &recvContext);    }  }  event TOS_MsgPtr ReceivePacket.receive(TOS_MsgPtr msg) {    alertReceiveContext(msg);    return msg;  }    event TOS_MsgPtr ReceiveAdHoc.receive(TOS_MsgPtr msg, void* payload, uint16_t payloadLen) {    alertReceiveContext(msg);    return msg;  }  event result_t Synch.makeRunnable(BombillaContext* context) {    return SUCCESS;  }  event result_t Virus.capsuleInstalled(BombillaCapsule* capsule) {    call Synch.initializeContext(&recvContext);    if (capsule->type == (BOMB_CAPSULE_RECV | BOMB_OPTION_FORWARD)) {      dbg(DBG_USR1, "VM: Installing recvContext Capsule. \n");      recvContext.rootCapsule.capsule = *capsule;      call Analysis.analyzeCapsuleVars(&recvContext.rootCapsule);      recvBuffer.type = BOMB_DATA_NONE;      recvBuffer.size = 0;      call Comm.reboot();    }    return SUCCESS;  }  event result_t Virus.enableExecution() {    return SUCCESS;  }  event result_t Virus.disableExecution() {    return SUCCESS;  }  event result_t Virus.capsuleHeard(uint8_t type) {    return SUCCESS;  }  event void Virus.capsuleForce(uint8_t type) {    return;  }}