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view src/g23m-gprs/upm/upm_link_control.h @ 516:1ed9de6c90bd

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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 2cf312e56ee7
children
line wrap: on
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/*----------------------------------------------------------------------------
|  Project :  3G PS
|  Module  :  UPM
+-----------------------------------------------------------------------------
|             Copyright 2003 Texas Instruments.
|             All rights reserved. 
| 
|             This file is confidential and a trade secret of Texas 
|             Instruments .
|             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. 
+-----------------------------------------------------------------------------
| Purpose:    Link Control state machine definitions in the UPM entity.
|             For design details, see:
|             8010.939 UPM Detailed Specification
+---------------------------------------------------------------------------*/

/*==== DECLARATION CONTROL =================================================*/

#ifndef _UPM_LINK_CONTROL_H
#define _UPM_LINK_CONTROL_H

/*==== INCLUDES =============================================================*/

/*==== CONSTS ===============================================================*/

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

typedef enum
{
  /* Incoming primitives */
  UPM_P_SM_ACTIVATE_STARTED_IND,
  UPM_P_SM_ACTIVATE_IND,
  UPM_P_SM_DEACTIVATE_IND,
  UPM_P_SM_MODIFY_IND,
  /* Events from DTI Control */
  UPM_I_LINK_DTI_CLOSED,
  /* Events from RAB Control */
  UPM_I_RAB_ESTABLISHED,
  UPM_I_RAB_RELEASED,
  /* Events from SNDCP Control */
  UPM_I_SNDCP_LLC_LINK_ESTABLISHED,
  UPM_I_SNDCP_LLC_LINK_MODIFIED,
  UPM_I_SNDCP_LLC_LINK_RELEASED,
  /* Events from RAT Change Control */
  UPM_I_LINK_RAT_CHANGED,
  /* Number of events */
  UPM_LINK_CONTROL_NUMBER_OF_EVENTS
} T_UPM_LINK_CONTROL_EVENT;

typedef enum
{
  UPM_LINK_RELEASED,
#ifdef TI_UMTS
  UPM_LINK_ESTABLISHING_RAB,
  UPM_LINK_AWAITING_ACTIVATE_UMTS,
  UPM_LINK_RAB_ESTABLISHED,
  UPM_LINK_RELEASING_RAB,
#endif /* TI_UMTS */
#ifdef TI_DUAL_MODE
  UPM_LINK_COMPLETING_RAT_CHANGE_TO_GSM,
  UPM_LINK_COMPLETING_RAT_CHANGE_TO_UMTS_INITIAL,
#endif /* TI_DUAL_MODE */
#ifdef TI_GPRS
  UPM_LINK_AWAITING_ACTIVATE_GSM,
  UPM_LINK_ESTABLISHING_LLC_LINK,
  UPM_LINK_LLC_LINK_ESTABLISHED,
  UPM_LINK_RELEASING_LLC_LINK,
#endif /* TI_GPRS */
  UPM_LINK_CONTROL_NUMBER_OF_STATES
} T_UPM_LINK_CONTROL_STATE;

/*==== EXPORTS ==============================================================*/
extern void upm_link_control_init(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_control_exit(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_control(struct T_CONTEXT_DATA *ptr_context_data,
			     T_UPM_LINK_CONTROL_EVENT event,
			     /*@null@*/ void *data);

extern BOOL upm_is_link_released(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_dispatch_sm_deactivate_ind(T_SM_DEACTIVATE_IND *);

#endif /* _UPM_LINK_CONTROL_H */
/*==== END OF FILE ==========================================================*/