view src/g23m-aci/aci/psa_gppps.c @ 516:1ed9de6c90bd

src/g23m-gsm/sms/sms_for.c: bogus malloc removed The new error handling code that was not present in TCS211 blob version contains a malloc call that is bogus for 3 reasons: 1) The memory allocation in question is not needed in the first place; 2) libc malloc is used instead of one of the firmware's proper ways; 3) The memory allocation is made inside a function and then never freed, i.e., a memory leak. This bug was caught in gcc-built FreeCalypso fw projects (Citrine and Selenite) because our gcc environment does not allow any use of libc malloc (any reference to malloc produces a link failure), but this code from TCS3.2 is wrong even for Magnetite: if this code path is executed repeatedly over a long time, the many small allocations made by this malloc call without a subsequent free will eventually exhaust the malloc heap provided by the TMS470 environment, malloc will start returning NULL, and the bogus code will treat it as an error. Because the memory allocation in question is not needed at all, the fix entails simply removing it.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Jul 2018 06:04:49 +0000
parents 53929b40109c
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  This module defines the signalling functions of the
|             protocol stack adapter for GPRS Point-to-Point Protocol ( PPP ).
+----------------------------------------------------------------------------- 
*/ 

#if defined (GPRS) && defined (DTI)

#ifndef PSA_GPPPS_C
#define PSA_GPPPS_C
#endif

#include "aci_all.h"
/*==== INCLUDES ===================================================*/
#include "dti.h"      /* functionality of the dti library */
#include "aci_cmh.h"
#include "ati_cmd.h"
#include "aci_cmd.h"
#include "aci.h"
#include "psa.h"

#include "dti_conn_mng.h"
#include "dti_cntrl_mng.h"

#include "psa_gppp.h"

/*==== CONSTANTS ==================================================*/

#define TOK_STR     " =\t"          /* string of token delimiter */

/*==== TYPES ======================================================*/


/*==== EXPORT =====================================================*/


/*==== VARIABLES ==================================================*/

/*==== FUNCTIONS ==================================================*/

/*
+-------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : PSA_PPPS                |
| STATE   : finished              ROUTINE : psaGPPP_Establish       |
+-------------------------------------------------------------------+

  PURPOSE : request establishment of PPP connection

*/
GLOBAL void psaGPPP_Establish ( T_PPP_ESTABLISH_REQ *est_req )
{

  TRACE_FUNCTION ("psaGPPP_Establish()");

/*
 *-------------------------------------------------------------------
 * create and send primitive for establich PPP
 *-------------------------------------------------------------------
 */
  {
    PALLOC (ppp_establish_req, PPP_ESTABLISH_REQ);

    *ppp_establish_req = *est_req;

    PSEND (hCommPPP, ppp_establish_req);
  }
}

/*
+-------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : PSA_PPPS                |
| STATE   : finished              ROUTINE : psaGPPP_Terminate       |
+-------------------------------------------------------------------+

  PURPOSE : close the PPP connection

*/
GLOBAL void psaGPPP_Terminate ( UBYTE lower_layer )
{

  TRACE_FUNCTION ("psaGPPP_Terminate()");

/*
 *-------------------------------------------------------------------
 * create and send primitive for network attach
 *-------------------------------------------------------------------
 */
  {
    PALLOC (ppp_terminate_req, PPP_TERMINATE_REQ);

    /* fill in primitive parameter: registration mode */
    ppp_terminate_req -> lower_layer = lower_layer;
      
    PSEND (hCommPPP, ppp_terminate_req);
  }
}  

/*
+-------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : PSA_PPPS                |
| STATE   : finished              ROUTINE : psaGPPP_PDP_Activate    |
+-------------------------------------------------------------------+

  PURPOSE : the PDP context is activated (only in server mode)

*/
GLOBAL void psaGPPP_PDP_Activate ( T_NAS_ip * ip, UBYTE *pco_buf, UBYTE pco_length, U8 nsapi)
{

  TRACE_FUNCTION ("psaGPPP_PDP_Activate()");

/*
 *-------------------------------------------------------------------
 * create and send primitive for network attach
 *-------------------------------------------------------------------
 */

  {
    PALLOC_SDU (ppp_pdp_activate_res, PPP_PDP_ACTIVATE_RES, (USHORT)(pco_length << 3));

    /* Issue OMAPS00047332: SM, SNDCP and UPM are not supporting ppp_hc and msid.
     * these two parameter should only be removed after 
     * PPP SAP modification. till then reset it to 0.
     */
    ppp_pdp_activate_res->ppp_hc    = 0; 
    ppp_pdp_activate_res->msid      = 0; 

#ifdef _SIMULATION_
#pragma message("A check of the IP version is needed before starting a PPP connection.")
#endif
    ppp_pdp_activate_res->ip  = ip->ip_address.ipv4_addr.a4[0] << 24;
    ppp_pdp_activate_res->ip += ip->ip_address.ipv4_addr.a4[1] << 16;
    ppp_pdp_activate_res->ip += ip->ip_address.ipv4_addr.a4[2] <<  8;
    ppp_pdp_activate_res->ip += ip->ip_address.ipv4_addr.a4[3];
    ppp_pdp_activate_res->sdu.l_buf = pco_length << 3;
    ppp_pdp_activate_res->sdu.o_buf = 0;
    if ( pco_length )
    {
      memcpy(&ppp_pdp_activate_res->sdu.buf, pco_buf, pco_length);
    }

    PSEND (hCommPPP, ppp_pdp_activate_res);
  }
}  

/*
+-------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : PSA_PPPS                |
| STATE   : finished              ROUTINE : psaGPPP_PDP_Reject      |
+-------------------------------------------------------------------+

  PURPOSE : the PDP context can't activated (only in server mode)

*/
GLOBAL SHORT psaGPPP_PDP_Reject ( void )
{

  TRACE_FUNCTION ("psaGPPP_PDP_Reject()");


/*
 *-------------------------------------------------------------------
 * check owner id
 *-------------------------------------------------------------------
 */  
  if(!psa_IsVldOwnId((T_OWN)gpppShrdPrm.owner)) 
    
    return( -1 );

/*
 *-------------------------------------------------------------------
 * create and send primitive for network attach
 *-------------------------------------------------------------------
 */
      
  PSEND (hCommPPP, gpppShrdPrm.setPrm[gpppShrdPrm.owner].pdp_rej);

  return 0;
}  

/*
+-------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : PSA_PPPS                |
| STATE   : finished              ROUTINE : psaGPPP_Modification    |
+-------------------------------------------------------------------+

  PURPOSE : negotiate header compression again (only in server mode)

*/
/* NEEDED ???*/


/* LOCAL SHORT psaGPPP_Modification ( void )*/
/* {*/
 /* T_PPP_SET_PRM * pPrmSet;       *//* points to used parameter set */
 /* TRACE_FUNCTION ("psaGPPP_Modification()");*/

/*
 *-------------------------------------------------------------------
 * check owner id
 *-------------------------------------------------------------------
 */  
/*   if(!psa_IsVldOwnId(gpppShrdPrm.owner)) 
    
    return( -1 );

  pPrmSet = &gpppShrdPrm.setPrm[gpppShrdPrm.owner]; */

/*
 *-------------------------------------------------------------------
 * create and send primitive for network attach
 *-------------------------------------------------------------------
 */
/*  {
    PALLOC (ppp_modification_req, PPP_MODIFICATION_REQ);*/

    /* fill in primitive parameter: registration mode */
/*    ppp_modification_req -> ppp_hc    = pPrmSet -> ppp_hc;
    ppp_modification_req -> msid      = pPrmSet -> msid;
      
    PSEND (hCommPPP, ppp_modification_req);
  }

  return 0;
}*/

#endif  /* GPRS */
/*==== EOF ========================================================*/